/* roulang page: index */
:root{
  --bg:#f5f3ee;--surface:#fffefa;--ink:#202521;--muted:#68706b;--line:#dddcd5;
  --green:#167b62;--green-dark:#0d5e4a;--green-pale:#e4f0ea;--orange:#c86432;
  --orange-pale:#f8e8df;--charcoal:#202521;--shadow:0 14px 36px rgba(38,42,37,.08);
  --shadow-sm:0 7px 18px rgba(38,42,37,.07);--radius:18px;--radius-sm:11px;
  --max:1200px;--ease:180ms ease;
}
*{box-sizing:border-box}html{scroll-behavior:smooth}body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.65}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input{font:inherit}button{cursor:pointer}::selection{background:#b9d9cd;color:var(--ink)}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(22,123,98,.35);outline-offset:3px}.container{width:min(var(--max),calc(100% - 64px));margin:auto}.section{padding:88px 0}.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-weight:800;font-size:13px;letter-spacing:.08em}.eyebrow:before{content:"";width:18px;height:2px;background:var(--orange)}h1,h2,h3,p{margin-top:0}h1{font-size:clamp(40px,4.5vw,54px);line-height:1.12;letter-spacing:-.045em;margin-bottom:19px}h2{font-size:clamp(29px,3vw,38px);line-height:1.18;letter-spacing:-.035em;margin-bottom:14px}h3{font-size:20px;line-height:1.3;margin-bottom:8px}.lead{font-size:17px;color:var(--muted);max-width:650px}.muted{color:var(--muted)}.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}.section-head p{margin:0;max-width:535px;color:var(--muted)}
.site-header{position:sticky;top:0;z-index:20;background:rgba(245,243,238,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}.nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}.brand{display:inline-flex;align-items:center;gap:11px;min-width:max-content}.brand-mark{width:32px;height:32px;border:2px solid var(--green);border-radius:9px;display:grid;place-items:center;color:var(--green);font-weight:900;font-size:14px}.brand strong{display:block;font-size:16px;line-height:1.15;letter-spacing:-.02em}.brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:.07em;margin-top:1px}.desktop-nav{display:flex;align-items:center;gap:4px;margin-left:auto}.desktop-nav a{font-size:14px;font-weight:700;color:#4d5650;padding:10px 12px;border-radius:8px;position:relative}.desktop-nav a:hover,.desktop-nav a.active{color:var(--green);background:var(--green-pale)}.desktop-nav a.active:after{content:"";position:absolute;height:2px;bottom:3px;left:12px;right:12px;background:var(--green)}.nav-download,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--radius-sm);font-weight:800;transition:transform var(--ease),background var(--ease),box-shadow var(--ease),border var(--ease);min-height:44px;padding:0 18px}.nav-download,.btn-primary{background:var(--green);color:#fff}.nav-download:hover,.btn-primary:hover{background:var(--green-dark);transform:translateY(-2px);box-shadow:var(--shadow-sm)}.btn-secondary{background:var(--surface);border-color:var(--line);color:var(--ink)}.btn-secondary:hover{border-color:var(--green);color:var(--green);transform:translateY(-2px)}.mobile-toggle{display:none;border:0;background:transparent;color:var(--ink);font-size:23px;padding:7px}.mobile-menu{display:none}
.hero{padding:64px 0 48px;overflow:hidden}.hero-shell{position:relative;overflow:hidden;background:var(--charcoal);color:#f8f8f3;border-radius:26px;padding:clamp(30px,5vw,70px);min-height:505px;display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center}.hero-shell:before{content:"";position:absolute;inset:0;opacity:.21;background-image:linear-gradient(45deg,transparent 48%,#8b9e92 49%,transparent 51%),linear-gradient(-45deg,transparent 48%,#8b9e92 49%,transparent 51%);background-size:42px 42px;mask-image:linear-gradient(90deg,#000 0%,transparent 70%)}.hero-copy,.hero-display{position:relative;z-index:1}.hero .eyebrow{color:#9ed5c1}.hero h1{max-width:660px}.hero .lead{color:#d3d9d4;max-width:575px}.action-row{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0 24px}.hero .btn-secondary{background:transparent;border-color:#6e7b73;color:#fff}.hero .btn-secondary:hover{border-color:#c8e7da;background:#29352e}.trust-list{display:flex;flex-wrap:wrap;gap:10px}.trust-list span,.tag{display:inline-flex;align-items:center;gap:6px;padding:5px 9px;border-radius:7px;font-size:12px;font-weight:700}.trust-list span{border:1px solid #536058;color:#d9e1dc}.tag{background:var(--green-pale);color:var(--green)}.tag.status{background:var(--orange-pale);color:#9e461f}.tag.platform{background:#ecece6;color:#59615b}
.hero-display{height:335px;border:1px solid #4d5b53;border-radius:21px;padding:18px;background:#273029;transform:rotate(1.4deg)}.console-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:15px;color:#c8d3cc;font-size:12px}.live-dot{width:7px;height:7px;background:#8ec3ab;border-radius:50%;display:inline-block;margin-right:6px}.console-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:12px;height:245px}.game-panel{border-radius:14px;background:linear-gradient(145deg,#346c5b,#173e34);padding:18px;display:flex;flex-direction:column;justify-content:space-between}.game-panel b{font-size:19px}.game-panel .tile-row{display:flex;gap:7px}.tile-row i{display:block;width:32px;height:32px;border:1px solid #8eb9a6;border-radius:9px;background:rgba(255,255,255,.08)}.phone-panel{border-radius:14px;border:1px solid #58665d;background:#161c18;padding:10px;display:flex;justify-content:center}.phone{width:104px;border-radius:17px;background:#edf0e9;padding:9px;color:var(--ink)}.phone-speaker{width:34px;height:4px;background:#8d968f;border-radius:5px;margin:0 auto 9px}.phone-screen{height:180px;border-radius:10px;background:#dce7df;padding:10px}.phone-screen b{font-size:10px}.phone-line{height:8px;background:#fffefa;border-radius:5px;margin:10px 0}.phone-cards{display:grid;grid-template-columns:1fr 1fr;gap:6px}.phone-cards i{height:44px;border-radius:7px;background:#167b62}.phone-cards i:last-child{background:#c86432}
.channel-grid{display:grid;grid-template-columns:1.2fr 1.2fr .9fr .9fr .9fr;gap:14px}.channel{min-height:163px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;justify-content:space-between;box-shadow:0 2px 0 rgba(32,37,33,.02);transition:var(--ease)}.channel:nth-child(1){grid-row:span 2;background:#e5eee9}.channel:nth-child(2){grid-row:span 2;background:#f1e8df}.channel:hover,.card:hover{transform:translateY(-3px);border-color:#a4c7b9;box-shadow:var(--shadow)}.channel-icon{width:35px;height:35px;border:1px solid currentColor;border-radius:10px;color:var(--green);display:grid;place-items:center;font-weight:900}.channel:nth-child(2) .channel-icon{color:var(--orange)}.channel p{font-size:13px;line-height:1.55;color:var(--muted);margin:4px 0}.arrow{font-weight:900;color:var(--green);font-size:20px}
.game-layout{display:grid;grid-template-columns:1.3fr .7fr;gap:18px}.feature-game,.mini-game,.content-card,.rule-card,.update-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:var(--ease)}.feature-game{display:grid;grid-template-columns:46% 1fr;min-height:300px}.cover{position:relative;overflow:hidden;background:#315d50}.cover:after{content:"";position:absolute;width:120px;height:120px;border:1px solid rgba(255,255,255,.44);border-radius:50%;right:-24px;bottom:-34px}.cover.green{background:linear-gradient(135deg,#155c4c,#78a893)}.cover.orange{background:linear-gradient(135deg,#8b482a,#d59261)}.cover.dark{background:linear-gradient(135deg,#303b34,#718278)}.game-copy{padding:27px;display:flex;flex-direction:column;align-items:flex-start;justify-content:center}.game-copy p{color:var(--muted);font-size:14px}.text-link{font-size:14px;color:var(--green);font-weight:800;border-bottom:1px solid transparent}.text-link:hover{border-color:currentColor}.mini-games{display:grid;gap:18px}.mini-game{display:grid;grid-template-columns:120px 1fr}.mini-game .cover{min-height:130px}.mini-game>div:last-child{padding:16px}.mini-game h3{font-size:17px}.mini-game p{font-size:13px;color:var(--muted);margin-bottom:8px}
dark{color:#fff}.dark-section{background:var(--charcoal);color:#fff}.dynamic-grid{display:grid;grid-template-columns:1fr .95fr;gap:55px;align-items:center}.dark-section .eyebrow{color:#9ed5c1}.dark-section p{color:#c8d0cb}.dynamic-lines{display:grid;gap:13px;margin-top:25px}.dynamic-lines div{padding:14px 0;border-bottom:1px solid #49534d;font-size:14px}.dynamic-lines span{color:#9ed5c1;font-size:12px;margin-right:12px}.timeline{background:#2b342e;border:1px solid #4b5750;border-radius:var(--radius);padding:24px}.timeline h3{font-size:17px}.timeline-item{display:grid;grid-template-columns:62px 1fr;gap:15px;padding:14px 0;border-top:1px solid #46514a}.timeline-item b{color:#a6d5c2;font-size:13px}.timeline-item p{font-size:13px;margin:0}
.scroll-row{display:grid;grid-template-columns:repeat(4,1fr);gap:15px;overflow:auto;padding-bottom:4px}.scroll-card{min-width:215px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:21px;transition:var(--ease)}.scroll-card:hover{box-shadow:var(--shadow);border-color:#9bc4b3}.number{font-size:13px;color:var(--orange);font-weight:900;letter-spacing:.08em}.scroll-card p{font-size:13px;color:var(--muted)}.rules-layout{display:grid;grid-template-columns:.75fr 1.25fr;gap:26px}.rules-index{background:#e7eee9;border-radius:var(--radius);padding:26px}.rules-index ol{padding:0;margin:18px 0 0;list-style:none;counter-reset:rule}.rules-index li{counter-increment:rule;border-top:1px solid #c4d5cb;padding:13px 0;font-weight:700}.rules-index li:before{content:"0" counter(rule);color:var(--green);font-size:12px;margin-right:11px}.stagger-cards{display:grid;grid-template-columns:repeat(3,1fr);align-items:center;gap:14px}.rule-card{padding:19px;min-height:163px}.rule-card:nth-child(2){transform:translateY(-16px);border-color:#9bc3b3}.rule-card p{font-size:13px;color:var(--muted);margin-bottom:10px}
.download-panel{background:var(--surface);border:1px solid var(--line);border-radius:24px;padding:clamp(25px,4vw,52px);display:grid;grid-template-columns:1fr .8fr;gap:50px;align-items:center;overflow:hidden}.download-panel p{color:var(--muted)}.download-info{display:flex;flex-wrap:wrap;gap:8px;margin:19px 0 25px}.device-stage{background:var(--charcoal);border-radius:20px;min-height:300px;display:flex;align-items:center;justify-content:center;position:relative}.device-stage:after{content:"请通过官方站内入口核验";position:absolute;right:18px;bottom:16px;color:#d4ddd7;font-size:11px}.device{width:158px;height:270px;padding:10px;border-radius:25px;background:#111613;border:3px solid #69736c}.device-ui{height:100%;background:#e4ede6;border-radius:15px;padding:17px}.device-ui b{font-size:13px}.ui-banner{height:78px;border-radius:10px;background:#167b62;margin:15px 0}.ui-list{height:12px;border-radius:5px;background:#fffefa;margin:10px 0}.qr{position:absolute;right:27px;top:28px;width:62px;height:62px;background:repeating-linear-gradient(45deg,#eef3ed 0 4px,#25352d 4px 8px);border:5px solid #fffefa}
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.step{position:relative;padding:24px 20px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius)}.step-no{color:var(--orange);font-weight:900;font-size:24px}.step p{font-size:13px;color:var(--muted);margin-bottom:9px}.activity-grid{display:grid;grid-template-columns:.82fr 1.18fr;gap:20px}.activity-title{background:var(--orange-pale);border-radius:var(--radius);padding:30px}.activity-title .tag{background:#fff7f1;color:#a14b24}.activity-title p{color:#765a4c}.accordion{display:grid;gap:10px}.accordion details{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:0 18px;transition:var(--ease)}.accordion details[open]{border-color:#b8d5c8}.accordion summary{padding:16px 24px 16px 0;font-weight:800;cursor:pointer;list-style:none;position:relative}.accordion summary:after{content:"+";position:absolute;right:0;color:var(--green);font-size:21px;font-weight:400}.accordion details[open] summary:after{content:"−"}.accordion .answer{padding:0 0 17px;color:var(--muted);font-size:14px}
.news-board{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}.news-feature{padding:28px;background:#e5eee9;border:1px solid #c9ddd2;border-radius:var(--radius);display:flex;flex-direction:column;justify-content:space-between;min-height:285px}.news-feature p{color:#52655b;font-size:14px}.news-list{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:6px 20px}.news-row{padding:14px 0;border-bottom:1px solid var(--line)}.news-row:last-child{border-bottom:0}.news-row a{display:grid;grid-template-columns:86px 1fr auto;gap:12px;align-items:center}.news-row h3{font-size:15px;margin:0;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}.news-row p{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;color:var(--muted);font-size:12px;margin:3px 0 0}.news-row time{font-size:12px;color:var(--muted);white-space:nowrap}.empty-state{grid-column:1/-1;text-align:center;padding:48px 20px;border:1px dashed #b9beb9;border-radius:var(--radius);background:var(--surface);color:var(--muted)}.empty-icon{font-size:28px;color:var(--green);display:block;margin-bottom:7px}
.announcement-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}.announce-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:25px}.announce-item{display:grid;grid-template-columns:52px 1fr;gap:13px;padding:15px 0;border-top:1px solid var(--line)}.announce-item:first-of-type{border-top:0}.announce-item time{color:var(--orange);font-size:12px;font-weight:800}.announce-item p{color:var(--muted);font-size:13px;margin:2px 0}.security-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}.guide-stack{display:grid;gap:14px}.guide-card{display:grid;grid-template-columns:70px 1fr;gap:17px;align-items:center;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:18px}.guide-visual{width:70px;height:70px;border-radius:12px;background:#dce9e2;display:grid;place-items:center;color:var(--green);font-size:24px}.guide-card p{font-size:13px;color:var(--muted);margin:0}.security-note{background:var(--charcoal);color:#fff;border-radius:var(--radius);padding:28px}.security-note p{color:#d2dad5}.security-note ul{padding-left:18px;color:#d2dad5;font-size:14px}.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:12px 18px}.cta{background:var(--charcoal);border-radius:24px;padding:48px;display:flex;justify-content:space-between;gap:28px;align-items:center;color:#fff}.cta h2{margin:0}.cta p{color:#cbd4ce;margin:8px 0 0}.cta .btn-secondary{border-color:#607067;background:transparent;color:#fff}
.site-footer{margin-top:88px;background:var(--charcoal);color:#edf1ed;padding:55px 0 20px}.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:30px}.site-footer .brand{margin-bottom:13px}.site-footer .brand strong{color:#fff}.site-footer .brand small{color:#aab7af}.site-footer .brand-mark{color:#a6d7c2;border-color:#a6d7c2}.footer-intro{color:#bfcac3;font-size:14px;max-width:260px}.footer-group h3{font-size:14px;color:#9ed5c1;margin-bottom:13px}.footer-group a{display:block;color:#c7d0ca;font-size:14px;margin:8px 0}.footer-group a:hover,.footer-bottom a:hover{color:#9ed5c1;text-decoration:underline}.footer-bottom{display:flex;justify-content:space-between;gap:15px;border-top:1px solid #414b45;margin-top:40px;padding-top:18px;font-size:12px;color:#aeb9b2}.footer-bottom span{display:flex;gap:15px;flex-wrap:wrap}
@media(max-width:1024px){.desktop-nav a{padding:9px 8px}.nav-download{padding:0 12px}.channel-grid{grid-template-columns:repeat(3,1fr)}.channel:nth-child(1),.channel:nth-child(2){grid-row:auto}.scroll-row{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){.container{width:min(100% - 32px,var(--max))}.section{padding:58px 0}.site-header{position:relative}.nav-wrap{height:68px}.desktop-nav,.nav-download{display:none}.mobile-toggle{display:block;margin-left:auto}.mobile-menu{display:none;border-top:1px solid var(--line);padding:14px 16px 20px;background:var(--bg)}.mobile-menu.open{display:block}.mobile-menu a{display:block;padding:12px 7px;font-size:15px;font-weight:750;border-bottom:1px solid var(--line)}.mobile-menu .nav-download{display:flex;margin-top:16px}.hero{padding:26px 0}.hero-shell{grid-template-columns:1fr;padding:30px;min-height:0}.hero-display{height:280px}.section-head{display:block;margin-bottom:24px}.section-head p{margin-top:9px}.channel-grid{grid-template-columns:1fr 1fr}.channel{min-height:145px}.game-layout,.dynamic-grid,.rules-layout,.download-panel,.activity-grid,.news-board,.announcement-grid,.security-grid{grid-template-columns:1fr}.feature-game{grid-template-columns:1fr}.feature-game .cover{min-height:180px}.mini-games{grid-template-columns:1fr 1fr}.stagger-cards{margin-top:14px}.steps{grid-template-columns:1fr 1fr}.news-feature{min-height:220px}.faq-grid{grid-template-columns:1fr}.cta{display:block;padding:33px}.cta .action-row{margin-bottom:0}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}}
@media(max-width:520px){body{font-size:15px}.hero-shell{padding:25px 21px;border-radius:19px}.hero h1{font-size:34px}.hero-display{height:235px;padding:12px}.console-grid{height:180px}.game-panel{padding:13px}.phone-panel{padding:7px}.phone{width:78px}.phone-screen{height:130px}.phone-cards i{height:29px}.channel-grid,.mini-games,.stagger-cards,.steps,.scroll-row{grid-template-columns:1fr}.channel:nth-child(n){min-height:126px}.mini-game{grid-template-columns:95px 1fr}.mini-game .cover{min-height:110px}.stagger-cards .rule-card:nth-child(2){transform:none}.download-panel{padding:24px 19px}.device-stage{min-height:250px}.qr{right:18px;top:20px;width:53px;height:53px}.news-row a{grid-template-columns:1fr}.news-row time{display:none}.news-row .tag{width:max-content}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}.footer-bottom{display:block}.footer-bottom span{margin-top:9px}.action-row .btn{width:100%}}

/* roulang page: article */
:root{
      --bg:#f5f3ee;--surface:#fffefa;--ink:#202521;--muted:#68706b;--line:#dddcd5;
      --green:#167b62;--green-dark:#0d5e4a;--green-pale:#e4f0ea;--orange:#c86432;
      --orange-pale:#f8e8df;--charcoal:#202521;--shadow:0 14px 36px rgba(38,42,37,.08);
      --shadow-sm:0 7px 18px rgba(38,42,37,.07);--radius:18px;--radius-sm:11px;
      --max:1200px;--ease:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.65}
    a{color:inherit;text-decoration:none}
    a:hover{color:var(--green)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(22,123,98,.35);outline-offset:3px}
    .container{width:min(var(--max),calc(100% - 64px));margin:auto}
    .section{padding:78px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-weight:800;font-size:13px;letter-spacing:.08em}
    .eyebrow:before{content:"";width:18px;height:2px;background:var(--orange)}
    .muted{color:var(--muted)}
    h1,h2,h3{line-height:1.2;letter-spacing:-.035em;font-weight:800}
    h1{font-size:clamp(32px,4.2vw,52px);margin:14px 0 18px}
    h2{font-size:clamp(25px,3vw,34px);margin:0 0 15px}
    h3{font-size:19px;margin:0 0 9px}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:30px}
    .section-head p{margin:0;max-width:550px;color:var(--muted)}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(245,243,238,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:inline-flex;align-items:center;gap:11px;min-width:max-content}
    .brand-mark{width:32px;height:32px;border:2px solid var(--green);border-radius:9px;display:grid;place-items:center;color:var(--green);font-weight:900;font-size:14px}
    .brand strong{display:block;font-size:16px;line-height:1.15;letter-spacing:-.02em}
    .brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:.07em;margin-top:1px}
    .desktop-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
    .desktop-nav a{font-size:14px;font-weight:700;color:#4d5650;padding:10px 12px;border-radius:8px;position:relative}
    .desktop-nav a:hover,.desktop-nav a.active{color:var(--green);background:var(--green-pale)}
    .desktop-nav a.active:after{content:"";position:absolute;height:2px;bottom:3px;left:12px;right:12px;background:var(--green)}
    .nav-download,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--radius-sm);font-weight:800;transition:transform var(--ease),background var(--ease),box-shadow var(--ease),border var(--ease);min-height:44px;padding:0 18px}
    .nav-download,.btn-primary{background:var(--green);color:#fff}
    .nav-download:hover,.btn-primary:hover{background:var(--green-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-sm)}
    .btn-secondary{background:var(--surface);border-color:var(--line);color:var(--ink)}
    .btn-secondary:hover{border-color:var(--green);color:var(--green);transform:translateY(-2px)}
    .mobile-toggle{display:none;border:0;background:transparent;color:var(--ink);font-size:23px;padding:7px}
    .mobile-menu{display:none}
    .article-hero{padding:72px 0 48px;border-bottom:1px solid var(--line)}
    .article-hero-inner{max-width:850px}
    .article-title{max-width:850px}
    .article-summary{font-size:18px;color:var(--muted);max-width:760px;margin:0}
    .crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;color:var(--muted);font-size:14px;margin-bottom:24px}
    .crumbs span{color:#a3aaa4}
    .meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;color:var(--muted);font-size:14px;margin-top:24px}
    .tag{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border-radius:7px;background:var(--green-pale);color:var(--green);font-size:12px;font-weight:800}
    .tag.status{background:var(--orange-pale);color:#9e461f}
    .reading-layout{display:grid;grid-template-columns:190px minmax(0,790px);gap:44px;align-items:start;justify-content:center}
    .toc{position:sticky;top:105px;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:21px}
    .toc strong{display:block;margin-bottom:12px;font-size:14px}
    .toc nav{display:grid;gap:8px}
    .toc a{font-size:13px;color:var(--muted);line-height:1.45}
    .toc a:hover{color:var(--green)}
    .toc a.sub{padding-left:12px;font-size:12px}
    .article-content{min-width:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:clamp(25px,4vw,48px)}
    .article-content>*:first-child{margin-top:0}
    .article-content p{margin:0 0 19px;line-height:1.9}
    .article-content h2{margin:38px 0 16px;font-size:28px}
    .article-content h3{margin:28px 0 12px}
    .article-content ul,.article-content ol{padding-left:24px;margin:0 0 20px}
    .article-content li{margin:7px 0}
    .article-content blockquote{margin:25px 0;padding:18px 21px;border-left:4px solid var(--green);background:var(--green-pale);border-radius:0 12px 12px 0;color:#38574b}
    .article-content img{border-radius:14px;margin:24px auto}
    .article-content table{width:100%;border-collapse:collapse;margin:24px 0;display:block;overflow-x:auto}
    .article-content th,.article-content td{padding:12px 15px;border:1px solid var(--line);text-align:left;white-space:nowrap}
    .article-content th{background:var(--green-pale);color:var(--green)}
    .article-content a{color:var(--green);font-weight:700;text-decoration:underline;text-underline-offset:3px}
    .empty-state{text-align:center;padding:55px 20px}
    .empty-icon{width:48px;height:48px;border-radius:15px;background:var(--green-pale);color:var(--green);display:grid;place-items:center;font-size:24px;margin:0 auto 15px}
    .app-card{display:flex;justify-content:space-between;align-items:center;gap:24px;background:var(--charcoal);color:#fff;border-radius:var(--radius);padding:27px 31px}
    .app-card p{color:#c8d0cb;margin:6px 0 0}
    .app-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
    .app-meta span{font-size:12px;border:1px solid #56635b;color:#d8e2dc;border-radius:7px;padding:4px 9px}
    .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .related-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:var(--ease)}
    .related-card:hover{transform:translateY(-3px);border-color:#a4c7b9;box-shadow:var(--shadow)}
    .related-card p{font-size:14px;color:var(--muted);margin:8px 0 17px}
    .back-help{display:flex;justify-content:space-between;align-items:center;gap:25px;padding-top:30px;border-top:1px solid var(--line)}
    .help-links{display:flex;gap:20px;flex-wrap:wrap;color:var(--green);font-weight:800;font-size:14px}
    .site-footer{background:var(--charcoal);color:#f5f5ef;padding:60px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:35px}
    .site-footer .brand strong{color:#fff}
    .site-footer .brand small{color:#aab5ae}
    .footer-intro{color:#aeb8b1;font-size:14px;margin-top:18px;max-width:240px}
    .footer-group{display:grid;align-content:start;gap:8px}
    .footer-group h3{font-size:14px;color:#a6d5c2;margin-bottom:8px}
    .footer-group a{font-size:14px;color:#c6cec8}
    .footer-group a:hover,.footer-bottom a:hover{color:#fff;text-decoration:underline}
    .footer-bottom{border-top:1px solid #46514a;margin-top:42px;padding-top:19px;display:flex;justify-content:space-between;gap:15px;color:#9fa9a2;font-size:12px}
    .footer-bottom span{display:flex;gap:16px}
    @media(max-width:960px){.desktop-nav{gap:0}.desktop-nav a{padding:9px 7px}.reading-layout{grid-template-columns:160px minmax(0,1fr);gap:25px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}}
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 48px))}
      .desktop-nav,.site-header>.nav-wrap>.nav-download{display:none}.mobile-toggle{display:block}
      .mobile-menu{padding:14px 24px 22px;border-top:1px solid var(--line);background:var(--bg)}
      .mobile-menu.open{display:grid;gap:5px}.mobile-menu a{padding:11px 4px;font-weight:700}.mobile-menu .nav-download{margin-top:8px;text-align:center;color:#fff}
      .article-hero{padding:52px 0 36px}.reading-layout{display:block}.toc{position:static;margin-bottom:20px}.toc nav{grid-template-columns:repeat(2,1fr)}
      .app-card{align-items:flex-start;flex-direction:column}.related-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}
      .footer-grid>div:first-child{grid-column:1/-1}
    }
    @media(max-width:520px){
      .container{width:calc(100% - 32px)}.section{padding:55px 0}h1{font-size:32px}.article-summary{font-size:16px}
      .article-content{padding:22px 18px}.toc nav{grid-template-columns:1fr}.related-grid{grid-template-columns:1fr}
      .back-help,.footer-bottom{display:grid}.footer-bottom span{flex-wrap:wrap}.footer-grid{gap:27px}
    }

/* roulang page: category1 */
:root{
      --bg:#f5f3ee;--surface:#fffefa;--ink:#202521;--muted:#68706b;--line:#dddcd5;
      --green:#167b62;--green-dark:#0d5e4a;--green-pale:#e4f0ea;--orange:#c86432;
      --orange-pale:#f8e8df;--charcoal:#202521;--shadow:0 14px 36px rgba(38,42,37,.08);
      --shadow-sm:0 7px 18px rgba(38,42,37,.07);--radius:18px;--radius-sm:11px;
      --max:1200px;--ease:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.65}
    a{color:inherit;text-decoration:none}
    a:hover{color:var(--green)}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(22,123,98,.35);outline-offset:3px}
    .container{width:min(var(--max),calc(100% - 64px));margin:auto}
    .section{padding:88px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
    .section-head h2{margin:8px 0 0;font-size:34px;letter-spacing:-.04em;line-height:1.2}
    .section-head p{margin:0;max-width:540px;color:var(--muted)}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-weight:800;font-size:13px;letter-spacing:.08em}
    .eyebrow:before{content:"";width:18px;height:2px;background:var(--orange)}
    .muted{color:var(--muted)}
    .tag{display:inline-flex;align-items:center;gap:6px;padding:5px 9px;border-radius:7px;font-size:12px;font-weight:700;background:var(--green-pale);color:var(--green)}
    .tag.status{background:var(--orange-pale);color:#9e461f}
    .tag.platform{background:#ecece6;color:#59615b}
    .btn,.nav-download{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--radius-sm);font-weight:800;transition:transform var(--ease),background var(--ease),box-shadow var(--ease),border var(--ease);min-height:44px;padding:0 18px}
    .btn-primary,.nav-download{background:var(--green);color:#fff}
    .btn-primary:hover,.nav-download:hover{background:var(--green-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-sm)}
    .btn-secondary{background:var(--surface);border-color:var(--line);color:var(--ink)}
    .btn-secondary:hover{border-color:var(--green);color:var(--green);transform:translateY(-2px)}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(245,243,238,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:inline-flex;align-items:center;gap:11px;min-width:max-content}
    .brand-mark{width:32px;height:32px;border:2px solid var(--green);border-radius:9px;display:grid;place-items:center;color:var(--green);font-weight:900;font-size:14px}
    .brand strong{display:block;font-size:16px;line-height:1.15;letter-spacing:-.02em}
    .brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:.07em;margin-top:1px}
    .desktop-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
    .desktop-nav a{font-size:14px;font-weight:700;color:#4d5650;padding:10px 12px;border-radius:8px;position:relative}
    .desktop-nav a:hover,.desktop-nav a.active{color:var(--green);background:var(--green-pale)}
    .desktop-nav a.active:after{content:"";position:absolute;height:2px;bottom:3px;left:12px;right:12px;background:var(--green)}
    .mobile-toggle{display:none;border:0;background:transparent;color:var(--ink);font-size:23px;padding:7px}
    .mobile-menu{display:none;padding:8px 32px 22px;border-top:1px solid var(--line)}
    .mobile-menu a{display:block;padding:11px 0;font-weight:700;border-bottom:1px solid var(--line)}
    .mobile-menu .nav-download{width:100%;margin-top:16px;border:0;text-align:center}
    .page-head{padding:72px 0 58px;position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
    .page-head:after{content:"";position:absolute;width:360px;height:360px;right:4%;top:-170px;border:1px solid #c9d8cf;border-radius:50%;box-shadow:0 0 0 28px rgba(22,123,98,.035),0 0 0 58px rgba(22,123,98,.025)}
    .breadcrumbs{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:24px;position:relative;z-index:1}
    .breadcrumbs span{color:#a0a59f}
    .page-head h1{font-size:clamp(38px,5vw,58px);line-height:1.1;letter-spacing:-.055em;margin:8px 0 18px;max-width:700px;position:relative;z-index:1}
    .page-head .lead{max-width:690px;color:var(--muted);font-size:17px;position:relative;z-index:1}
    .channel-grid{display:grid;grid-template-columns:1.25fr 1.25fr .9fr .9fr .9fr;gap:14px}
    .channel{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:22px;min-height:145px;transition:var(--ease)}
    .channel:hover{transform:translateY(-3px);border-color:#a4c7b9;box-shadow:var(--shadow)}
    .channel strong{display:block;font-size:18px;margin:18px 0 6px}
    .channel p{font-size:13px;color:var(--muted);margin:0}
    .channel-icon{width:34px;height:34px;border:1px solid #9fc4b3;border-radius:10px;color:var(--green);display:grid;place-items:center;font-weight:900}
    .channel .arrow{float:right;margin-top:-25px;color:var(--green);font-size:20px}
    .feature-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:18px}
    .feature-game,.game-card,.content-card,.rule-card,.sport-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:var(--ease)}
    .feature-game{display:grid;grid-template-columns:43% 1fr;min-height:330px}
    .cover{background:#dce8e0;position:relative;min-height:180px;overflow:hidden}
    .cover:before{content:"";position:absolute;width:180px;height:180px;border:1px solid rgba(22,123,98,.35);border-radius:50%;right:-35px;bottom:-55px;box-shadow:0 0 0 22px rgba(22,123,98,.08),0 0 0 47px rgba(22,123,98,.05)}
    .cover.dark{background:#29352e}
    .cover.orange{background:#eed8ca}
    .cover-mark{position:absolute;left:22px;bottom:18px;font-size:13px;font-weight:900;letter-spacing:.12em;color:var(--green-dark)}
    .feature-game .cover{min-height:330px}
    .feature-copy{padding:28px}
    .feature-copy h3,.game-card h3,.content-card h3,.rule-card h3{font-size:22px;line-height:1.3;margin:14px 0 8px}
    .feature-copy p,.game-card p,.content-card p,.rule-card p{color:var(--muted);font-size:14px;margin:0 0 20px}
    .mini-games{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .game-card .cover{height:142px}
    .game-card .card-body{padding:20px}
    .game-card h3{font-size:18px;margin-top:12px}
    .dark-section{background:var(--charcoal);color:#fff}
    .dark-section .section-head p,.dark-section p{color:#c8d0cb}
    .live-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:60px;align-items:center}
    .live-panel{border:1px solid #46514a;border-radius:var(--radius);padding:24px;background:#273029}
    .live-row{display:grid;grid-template-columns:78px 1fr auto;align-items:center;gap:15px;padding:16px 0;border-bottom:1px solid #46514a}
    .live-row:last-child{border-bottom:0}
    .live-row b{font-size:13px;color:#a6d5c2}
    .live-row strong{font-size:15px}
    .live-row span{font-size:12px;color:#c8d0cb}
    .topic-wall{display:grid;grid-template-columns:1.35fr .8fr .8fr;grid-template-rows:160px 160px;gap:14px}
    .topic{border-radius:var(--radius);padding:22px;display:flex;flex-direction:column;justify-content:space-between;border:1px solid var(--line);background:var(--surface);transition:var(--ease)}
    .topic:hover{transform:translateY(-3px);box-shadow:var(--shadow);border-color:#a4c7b9}
    .topic.tall{grid-row:span 2;background:#dce9e1}
    .topic h3{margin:0;font-size:20px}
    .topic p{font-size:13px;color:var(--muted);margin:0}
    .number{font-size:13px;font-weight:900;color:var(--green)}
    .rules-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:48px;align-items:start}
    .rule-list{list-style:none;padding:0;margin:0}
    .rule-list li{display:flex;gap:17px;padding:15px 0;border-bottom:1px solid var(--line)}
    .rule-list b{color:var(--green);font-size:14px}
    .rule-list a{font-weight:800}
    .rule-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .rule-card{padding:22px}
    .rule-card:nth-child(2){transform:translateY(22px)}
    .rule-card h3{font-size:18px}
    .sport-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:18px}
    .sport-card{padding:26px}
    .match{display:flex;justify-content:space-between;gap:15px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}
    .match:last-child{border-bottom:0}
    .match small{display:block;color:var(--muted);font-size:12px}
    .match strong{font-size:15px}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    details{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-sm);padding:0 20px;transition:var(--ease)}
    details+details{margin-top:12px}
    details[open]{border-color:#9fc4b3;box-shadow:var(--shadow-sm)}
    summary{list-style:none;cursor:pointer;padding:18px 30px 18px 0;font-weight:800;position:relative}
    summary::-webkit-details-marker{display:none}
    summary:after{content:"+";position:absolute;right:0;color:var(--green);font-size:22px;top:13px}
    details[open] summary:after{content:"−"}
    details p{color:var(--muted);font-size:14px;margin:0 0 18px}
    .help-strip{display:flex;justify-content:space-between;align-items:center;gap:20px;margin-top:30px;padding:20px 24px;background:var(--green-pale);border-radius:var(--radius-sm)}
    .help-strip p{margin:0;font-weight:700}
    .site-footer{background:var(--charcoal);color:#f4f5f0;padding:58px 0 22px}
    .site-footer .brand strong{color:#fff}.site-footer .brand small{color:#aebbb3}
    .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;padding-bottom:42px}
    .footer-intro{color:#aebbb3;font-size:14px;max-width:260px;margin:16px 0 0}
    .footer-group h3{font-size:14px;color:#a6d5c2;margin:5px 0 15px}
    .footer-group a{display:block;color:#c8d0cb;font-size:13px;margin:9px 0}
    .footer-group a:hover{color:#fff;text-decoration:underline}
    .footer-bottom{border-top:1px solid #46514a;padding-top:19px;display:flex;justify-content:space-between;gap:20px;color:#9ca8a1;font-size:12px}
    .footer-bottom span{display:flex;gap:18px}.footer-bottom a:hover{color:#fff}
    @media(max-width:960px){
      .desktop-nav{gap:0}.desktop-nav a{padding:9px 7px;font-size:13px}
      .channel-grid{grid-template-columns:repeat(3,1fr)}
      .feature-layout,.live-layout,.rules-layout,.sport-grid{grid-template-columns:1fr}
      .live-layout{gap:28px}.topic-wall{grid-template-columns:1fr 1fr}
      .topic.tall{grid-row:span 2}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 48px))}
      .desktop-nav,.nav-wrap>.nav-download{display:none}.mobile-toggle{display:block}
      .mobile-menu.open{display:block}
      .section{padding:64px 0}.section-head{display:block}.section-head p{margin-top:12px}
      .section-head h2{font-size:28px}.page-head{padding:54px 0 46px}
      .page-head h1{font-size:40px}.channel-grid{grid-template-columns:1fr 1fr}
      .feature-game{grid-template-columns:1fr}.feature-game .cover{min-height:190px}
      .mini-games{grid-template-columns:1fr 1fr}.topic-wall{grid-template-columns:1fr 1fr;grid-template-rows:145px 145px}
      .rule-cards{grid-template-columns:1fr}.rule-card:nth-child(2){transform:none}
      .faq-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-bottom{display:block}.footer-bottom span{margin-top:12px;flex-wrap:wrap}
    }
    @media(max-width:520px){
      .container{width:calc(100% - 32px)}.nav-wrap{height:70px}.mobile-menu{padding-left:16px;padding-right:16px}
      .page-head h1{font-size:34px}.channel-grid,.mini-games,.topic-wall{grid-template-columns:1fr}
      .topic-wall{grid-template-rows:auto}.topic,.topic.tall{min-height:145px;grid-row:auto}
      .live-row{grid-template-columns:62px 1fr}.live-row .tag{grid-column:2}
      .footer-grid{grid-template-columns:1fr}.help-strip{display:block}.help-strip .btn{margin-top:14px}
    }

/* roulang page: category2 */
:root{
      --bg:#f5f3ee;--surface:#fffefa;--ink:#202521;--muted:#68706b;--line:#dddcd5;
      --green:#167b62;--green-dark:#0d5e4a;--green-pale:#e4f0ea;--orange:#c86432;
      --orange-pale:#f8e8df;--charcoal:#202521;--shadow:0 14px 36px rgba(38,42,37,.08);
      --shadow-sm:0 7px 18px rgba(38,42,37,.07);--radius:18px;--radius-sm:11px;
      --max:1200px;--ease:180ms ease
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.65}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(22,123,98,.35);outline-offset:3px}
    .container{width:min(var(--max),calc(100% - 64px));margin:auto}
    .section{padding:88px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-weight:800;font-size:13px;letter-spacing:.08em}
    .eyebrow:before{content:"";width:18px;height:2px;background:var(--orange)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
    .section-head p{margin:0;max-width:560px;color:var(--muted)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(36px,5vw,58px);line-height:1.12;letter-spacing:-.055em;font-weight:800;margin:14px 0 20px}
    h2{font-size:clamp(28px,3.5vw,38px);line-height:1.2;letter-spacing:-.04em;font-weight:800;margin-bottom:14px}
    h3{font-size:20px;line-height:1.3;margin-bottom:9px;font-weight:800}
    .lead{font-size:17px;color:var(--muted);max-width:680px}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(245,243,238,.95);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:inline-flex;align-items:center;gap:11px;min-width:max-content}
    .brand-mark{width:32px;height:32px;border:2px solid var(--green);border-radius:9px;display:grid;place-items:center;color:var(--green);font-weight:900;font-size:14px}
    .brand strong{display:block;font-size:16px;line-height:1.15;letter-spacing:-.02em}
    .brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:.07em;margin-top:1px}
    .desktop-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
    .desktop-nav a{font-size:14px;font-weight:700;color:#4d5650;padding:10px 12px;border-radius:8px;position:relative}
    .desktop-nav a:hover,.desktop-nav a.active{color:var(--green);background:var(--green-pale)}
    .desktop-nav a.active:after{content:"";position:absolute;height:2px;bottom:3px;left:12px;right:12px;background:var(--green)}
    .nav-download,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--radius-sm);font-weight:800;transition:transform var(--ease),background var(--ease),box-shadow var(--ease),border var(--ease);min-height:44px;padding:0 18px}
    .nav-download,.btn-primary{background:var(--green);color:#fff}
    .nav-download:hover,.btn-primary:hover{background:var(--green-dark);transform:translateY(-2px);box-shadow:var(--shadow-sm);color:#fff}
    .btn-secondary{background:var(--surface);border-color:var(--line);color:var(--ink)}
    .btn-secondary:hover{border-color:var(--green);color:var(--green);transform:translateY(-2px)}
    .mobile-toggle{display:none;border:0;background:transparent;color:var(--ink);font-size:23px;padding:7px}
    .mobile-menu{display:none}
    .page-head{padding:72px 0 64px;background:var(--surface);border-bottom:1px solid var(--line);position:relative;overflow:hidden}
    .page-head:after{content:"J9";position:absolute;right:8%;bottom:-35px;font-size:190px;line-height:1;font-weight:900;color:var(--green-pale);transform:rotate(-8deg);z-index:0}
    .page-head .container{position:relative;z-index:1}
    .breadcrumbs{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:22px}
    .breadcrumbs a:hover{color:var(--green);text-decoration:underline}
    .head-meta{display:flex;flex-wrap:wrap;gap:9px;margin-top:25px}
    .tag{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border-radius:7px;font-size:12px;font-weight:800}
    .tag.category{background:var(--green-pale);color:var(--green)}
    .tag.status{background:var(--orange-pale);color:#9e461f}
    .tag.platform{background:#ecece6;color:#59615b}
    .download-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .download-card,.preview-card,.step-card,.update-card,.security-card,.support-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);transition:transform var(--ease),box-shadow var(--ease),border var(--ease)}
    .download-card:hover,.update-card:hover,.support-card:hover{transform:translateY(-3px);border-color:#a4c7b9;box-shadow:var(--shadow)}
    .download-card{padding:27px;min-height:300px;display:flex;flex-direction:column}
    .platform-icon{width:44px;height:44px;border-radius:13px;background:var(--green-pale);color:var(--green);display:grid;place-items:center;font-size:17px;font-weight:900;margin-bottom:20px}
    .card-detail{font-size:14px;color:var(--muted);margin-bottom:18px}
    .spec-list{list-style:none;padding:0;margin:0 0 24px;color:var(--muted);font-size:13px}
    .spec-list li{padding:6px 0;border-top:1px solid var(--line)}
    .spec-list li:first-child{border-top:0}
    .download-card .btn{margin-top:auto;width:max-content}
    .preview-wrap{display:grid;grid-template-columns:.9fr 1.1fr;gap:44px;align-items:center}
    .device-stage{min-height:420px;background:var(--charcoal);border-radius:24px;display:grid;place-items:center;position:relative;overflow:hidden}
    .device-stage:before{content:"";position:absolute;width:360px;height:360px;border:1px solid #536058;border-radius:50%;box-shadow:0 0 0 34px rgba(255,255,255,.025),0 0 0 70px rgba(255,255,255,.018)}
    .phone{width:190px;height:365px;border:7px solid #69756d;border-radius:28px;background:#f0f2ed;padding:31px 13px 14px;position:relative;box-shadow:0 18px 30px rgba(0,0,0,.3);z-index:1}
    .phone:before{content:"";position:absolute;top:10px;left:50%;width:60px;height:5px;border-radius:8px;background:#4c554f;transform:translateX(-50%)}
    .phone-top{height:42px;border-radius:9px;background:var(--green);margin-bottom:10px}
    .phone-line{height:10px;width:72%;background:#cfd8d1;border-radius:4px;margin:10px 0}
    .phone-row{display:grid;grid-template-columns:1fr 1fr;gap:7px}
    .phone-row span{height:65px;border-radius:8px;background:#dfe8e1}
    .phone-row span:nth-child(2){background:#f0d9cd}
    .preview-copy p{color:var(--muted)}
    .preview-points{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin:25px 0}
    .preview-points div{padding:15px;background:#eeece6;border-radius:12px}
    .preview-points strong{display:block;font-size:14px}
    .preview-points span{font-size:12px;color:var(--muted)}
    .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .step-card{padding:23px;position:relative}
    .step-number{color:var(--orange);font-size:14px;font-weight:900;letter-spacing:.08em}
    .step-card p{font-size:14px;color:var(--muted);margin-bottom:0}
    .updates{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .update-card{padding:24px}
    .update-top{display:flex;justify-content:space-between;gap:15px;align-items:center;margin-bottom:15px}
    .version{font-weight:900;color:var(--green);font-size:18px}
    .update-date{font-size:13px;color:var(--muted)}
    .update-card ul{margin:0 0 18px;padding-left:19px;color:var(--muted);font-size:14px}
    .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:15px}
    .faq-item{background:var(--surface);border:1px solid var(--line);border-radius:13px;padding:0 19px}
    .faq-item summary{list-style:none;cursor:pointer;padding:18px 27px 18px 0;font-weight:800;position:relative}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";position:absolute;right:1px;color:var(--green);font-size:22px;top:13px}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{color:var(--muted);font-size:14px;border-top:1px solid var(--line);padding:15px 0 18px}
    .security-area{background:#e9f1eb}
    .security-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:18px}
    .security-card{padding:28px;background:var(--surface)}
    .notice{border-left:3px solid var(--orange);background:var(--orange-pale);padding:15px 17px;color:#754126;font-size:14px;margin-top:18px}
    .security-list{list-style:none;padding:0;margin:20px 0 0}
    .security-list li{padding:12px 0;border-top:1px solid var(--line);font-size:14px}
    .support-section{padding-top:70px;padding-bottom:92px}
    .support-card{background:var(--charcoal);color:#fff;padding:38px;display:flex;align-items:center;justify-content:space-between;gap:28px}
    .support-card p{color:#c8d0cb;max-width:600px;margin-bottom:0}
    .support-actions{display:flex;gap:10px;flex-wrap:wrap}
    .support-card .btn-secondary{background:transparent;border-color:#69766e;color:#fff}
    .site-footer{background:var(--charcoal);color:#fff;padding:58px 0 24px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
    .site-footer .brand strong{color:#fff}
    .site-footer .brand small{color:#aebbb3}
    .footer-intro{color:#aebbb3;font-size:14px;max-width:240px;margin:17px 0 0}
    .footer-group{display:flex;flex-direction:column;gap:8px}
    .footer-group h3{font-size:14px;color:#fff;margin-bottom:8px}
    .footer-group a,.footer-bottom{font-size:13px;color:#aebbb3}
    .footer-group a:hover,.footer-bottom a:hover{color:#9ed5c1;text-decoration:underline}
    .footer-bottom{border-top:1px solid #46514a;padding-top:20px;display:flex;justify-content:space-between;gap:20px}
    .footer-bottom span{display:flex;gap:18px}
    @media(max-width:960px){
      .desktop-nav{gap:0}.desktop-nav a{padding:9px 7px;font-size:13px}
      .download-grid,.steps{grid-template-columns:repeat(2,1fr)}
      .preview-wrap,.security-grid{grid-template-columns:1fr}
      .device-stage{min-height:350px}.footer-grid{grid-template-columns:1.4fr 1fr 1fr}
      .footer-grid .footer-group:last-child{display:none}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 48px))}
      .nav-wrap{height:70px}.desktop-nav,.site-header>.nav-wrap>.nav-download{display:none}
      .mobile-toggle{display:block}.mobile-menu{padding:12px 24px 22px;border-top:1px solid var(--line);background:var(--bg)}
      .mobile-menu.open{display:flex;flex-direction:column;gap:4px}.mobile-menu>a{padding:11px 8px;font-weight:700}.mobile-menu .nav-download{margin-top:9px;width:100%}
      .section{padding:64px 0}.page-head{padding:52px 0 48px}
      .section-head{display:block;margin-bottom:25px}.section-head p{margin-top:10px}
      .download-grid,.steps,.updates,.faq-grid{grid-template-columns:1fr}
      .preview-points{grid-template-columns:1fr 1fr}
      .support-card{display:block;padding:28px}.support-actions{margin-top:22px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}
      .footer-grid .footer-group:last-child{display:flex}.footer-bottom{display:block}.footer-bottom span{margin-top:12px;flex-wrap:wrap}
    }
    @media(max-width:520px){
      .container{width:calc(100% - 32px)}
      h1{font-size:36px}.lead{font-size:16px}
      .page-head:after{font-size:120px;right:-8px}
      .download-card,.security-card{padding:21px}.preview-points{grid-template-columns:1fr}
      .device-stage{min-height:310px}.phone{transform:scale(.86)}
      .footer-grid{grid-template-columns:1fr}.footer-grid .footer-group:last-child{display:flex}
      .footer-bottom span{gap:10px 15px}
    }

/* roulang page: category3 */
:root{
      --bg:#f5f3ee;--surface:#fffefa;--ink:#202521;--muted:#68706b;--line:#dddcd5;
      --green:#167b62;--green-dark:#0d5e4a;--green-pale:#e4f0ea;--orange:#c86432;
      --orange-pale:#f8e8df;--charcoal:#202521;--shadow:0 14px 36px rgba(38,42,37,.08);
      --shadow-sm:0 7px 18px rgba(38,42,37,.07);--radius:18px;--radius-sm:11px;
      --max:1200px;--ease:180ms ease;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",Arial,sans-serif;font-size:16px;line-height:1.65}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button,input{font:inherit}
    button{cursor:pointer}
    a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:3px solid rgba(22,123,98,.35);outline-offset:3px}
    .container{width:min(var(--max),calc(100% - 64px));margin:auto}
    .section{padding:88px 0}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--green);font-weight:800;font-size:13px;letter-spacing:.08em}
    .eyebrow:before{content:"";width:18px;height:2px;background:var(--orange)}
    .lead{font-size:17px;color:var(--muted);max-width:680px}
    .muted{color:var(--muted)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
    .section-head p{margin:0;max-width:535px;color:var(--muted)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(34px,5vw,52px);line-height:1.13;letter-spacing:-.045em;font-weight:800;margin:16px 0 20px}
    h2{font-size:clamp(27px,3.5vw,36px);line-height:1.2;letter-spacing:-.035em;font-weight:800;margin-bottom:14px}
    h3{font-size:19px;line-height:1.35;margin-bottom:9px;font-weight:800}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(245,243,238,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
    .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:24px}
    .brand{display:inline-flex;align-items:center;gap:11px;min-width:max-content}
    .brand-mark{width:32px;height:32px;border:2px solid var(--green);border-radius:9px;display:grid;place-items:center;color:var(--green);font-weight:900;font-size:14px}
    .brand strong{display:block;font-size:16px;line-height:1.15;letter-spacing:-.02em}
    .brand small{display:block;color:var(--muted);font-size:10px;letter-spacing:.07em;margin-top:1px}
    .desktop-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
    .desktop-nav a{font-size:14px;font-weight:700;color:#4d5650;padding:10px 12px;border-radius:8px;position:relative}
    .desktop-nav a:hover,.desktop-nav a.active{color:var(--green);background:var(--green-pale)}
    .desktop-nav a.active:after{content:"";position:absolute;height:2px;bottom:3px;left:12px;right:12px;background:var(--green)}
    .nav-download,.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:var(--radius-sm);font-weight:800;transition:transform var(--ease),background var(--ease),box-shadow var(--ease),border var(--ease);min-height:44px;padding:0 18px}
    .nav-download,.btn-primary{background:var(--green);color:#fff}
    .nav-download:hover,.btn-primary:hover{background:var(--green-dark);transform:translateY(-2px);box-shadow:var(--shadow-sm)}
    .btn-secondary{background:var(--surface);border-color:var(--line);color:var(--ink)}
    .btn-secondary:hover{border-color:var(--green);color:var(--green);transform:translateY(-2px)}
    .mobile-toggle{display:none;border:0;background:transparent;color:var(--ink);font-size:23px;padding:7px}
    .mobile-menu{display:none}
    .page-hero{padding:62px 0 54px}
    .page-hero-inner{position:relative;overflow:hidden;background:#e7eee8;border:1px solid #d3ded5;border-radius:26px;padding:clamp(30px,6vw,72px)}
    .page-hero-inner:after{content:"";position:absolute;width:330px;height:330px;border:1px solid rgba(22,123,98,.2);border-radius:50%;right:-90px;top:-120px;box-shadow:0 0 0 28px rgba(22,123,98,.05),0 0 0 58px rgba(22,123,98,.035)}
    .breadcrumb{display:flex;gap:9px;align-items:center;color:var(--muted);font-size:13px;margin-bottom:24px}
    .breadcrumb a:hover{color:var(--green);text-decoration:underline}
    .hero-copy{position:relative;z-index:1;max-width:740px}
    .filter-row{display:flex;flex-wrap:wrap;gap:9px;margin-top:26px}
    .filter-row a{padding:8px 13px;border:1px solid #c8d8ce;border-radius:9px;background:rgba(255,254,250,.6);font-size:13px;font-weight:700;color:#4e6258}
    .filter-row a:hover,.filter-row a.active{background:var(--green);border-color:var(--green);color:#fff}
    .matrix{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .matrix a,.news-card,.notice-item,.version-card,.guide-card,.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);transition:transform var(--ease),box-shadow var(--ease),border var(--ease)}
    .matrix a{padding:22px 20px;min-height:132px;display:flex;flex-direction:column;justify-content:space-between}
    .matrix a:hover,.news-card:hover,.notice-item:hover,.version-card:hover,.guide-card:hover{transform:translateY(-3px);border-color:#a4c7b9;box-shadow:var(--shadow)}
    .matrix strong{font-size:17px}
    .matrix span{font-size:13px;color:var(--muted)}
    .matrix b{color:var(--green);font-size:20px;align-self:flex-end}
    .feature{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:stretch}
    .feature-copy{background:var(--charcoal);color:#fff;border-radius:var(--radius);padding:34px;display:flex;flex-direction:column;justify-content:center;min-height:290px}
    .feature-copy .tag{align-self:flex-start}
    .feature-copy p{color:#cad3cd;max-width:560px}
    .feature-copy .text-link{color:#a6d5c2;margin-top:12px}
    .feature-art{border-radius:var(--radius);min-height:290px;background:#cbded2;position:relative;overflow:hidden;padding:26px}
    .feature-art:before,.feature-art:after{content:"";position:absolute;border:1px solid rgba(22,123,98,.32);border-radius:50%}
    .feature-art:before{width:360px;height:360px;right:-80px;top:-120px}
    .feature-art:after{width:190px;height:190px;left:30px;bottom:-85px}
    .art-note{position:relative;z-index:1;background:var(--surface);border-radius:14px;padding:18px;max-width:270px;box-shadow:var(--shadow-sm);margin-top:100px}
    .art-note b{display:block;color:var(--green);font-size:12px;margin-bottom:8px}
    .news-list{display:grid;grid-template-columns:repeat(2,1fr);gap:15px}
    .news-card{padding:22px;display:grid;grid-template-columns:72px 1fr;gap:17px}
    .news-thumb{height:72px;border-radius:13px;background:#d7e7dd;position:relative}
    .news-thumb.orange{background:#f1d6c7}
    .news-thumb.dark{background:#3c5147}
    .news-thumb:after{content:"";position:absolute;width:28px;height:28px;border:2px solid rgba(22,123,98,.6);border-radius:50%;top:21px;left:22px}
    .news-card h3{font-size:17px;margin:9px 0 6px}
    .news-card p{font-size:13px;line-height:1.6;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:12px}
    .meta{font-size:12px;color:var(--muted);display:flex;gap:10px;flex-wrap:wrap}
    .tag{display:inline-flex;align-items:center;padding:5px 9px;border-radius:7px;font-size:12px;font-weight:800;background:var(--green-pale);color:var(--green)}
    .tag.status{background:var(--orange-pale);color:#9e461f}
    .tag.platform{background:#ecece6;color:#59615b}
    .text-link{font-size:14px;color:var(--green);font-weight:800;border-bottom:1px solid transparent}
    .text-link:hover{border-color:currentColor}
    .notice-layout{display:grid;grid-template-columns:.85fr 1.15fr;gap:50px;align-items:start}
    .notice-timeline{border-left:2px solid #b5d1c3;padding-left:24px}
    .notice-item{padding:18px 20px;margin-bottom:13px;position:relative}
    .notice-item:before{content:"";position:absolute;width:10px;height:10px;background:var(--green);border:3px solid var(--bg);border-radius:50%;left:-31px;top:25px}
    .notice-item h3{font-size:16px;margin:8px 0}
    .notice-item p{font-size:13px;color:var(--muted);margin:0}
    .version-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .version-card{padding:22px}
    .version-top{display:flex;justify-content:space-between;gap:12px;align-items:center;margin-bottom:18px}
    .version-number{font-size:25px;font-weight:900;letter-spacing:-.04em}
    .version-card ul{padding-left:19px;color:var(--muted);font-size:13px;margin:0 0 18px}
    .version-card li+li{margin-top:7px}
    .guides{display:grid;grid-template-columns:1.25fr .9fr .9fr;gap:15px;align-items:stretch}
    .guide-card{padding:24px;min-height:190px}
    .guide-card:first-child{background:#e3eee7}
    .guide-card h3{margin-top:24px}
    .guide-card p{font-size:13px;color:var(--muted)}
    .search-area{background:#e9e6de;border-radius:var(--radius);padding:32px;display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:center}
    .search-form{display:flex;gap:10px}
    .search-form input{height:48px;flex:1;border:1px solid #c9c8bf;border-radius:10px;background:var(--surface);padding:0 15px;color:var(--ink)}
    .search-form input::placeholder{color:#969b94}
    .faq-list{display:grid;grid-template-columns:1fr 1fr;gap:12px}
    .faq-item{overflow:hidden}
    .faq-item summary{padding:18px 21px;font-weight:800;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:15px}
    .faq-item summary::-webkit-details-marker{display:none}
    .faq-item summary:after{content:"+";color:var(--green);font-size:22px;line-height:1}
    .faq-item[open] summary:after{content:"−"}
    .faq-answer{padding:0 21px 19px;color:var(--muted);font-size:14px}
    .cta{padding:70px 0}
    .cta-box{border-radius:24px;background:var(--charcoal);color:#fff;padding:40px 46px;display:flex;justify-content:space-between;align-items:center;gap:24px}
    .cta-box p{color:#c8d0cb;margin:0}
    .cta-box .btn-secondary{background:transparent;color:#fff;border-color:#68776e}
    .site-footer{background:var(--charcoal);color:#fff;padding:60px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding-bottom:45px}
    .site-footer .brand strong{color:#fff}
    .site-footer .brand small,.footer-intro{color:#aebbb2}
    .footer-intro{font-size:13px;margin:18px 0 0;max-width:240px}
    .footer-group{display:flex;flex-direction:column;gap:8px}
    .footer-group h3{font-size:14px;color:#9ed5c1;margin-bottom:8px}
    .footer-group a,.footer-bottom{font-size:13px;color:#aebbb2}
    .footer-group a:hover,.footer-bottom a:hover{color:#fff;text-decoration:underline}
    .footer-bottom{border-top:1px solid #465149;padding-top:19px;display:flex;justify-content:space-between;gap:20px}
    .footer-bottom span{display:flex;gap:18px}
    @media(max-width:960px){
      .desktop-nav{gap:0}.desktop-nav a{padding:9px 8px;font-size:13px}.nav-wrap{gap:12px}
      .matrix{grid-template-columns:repeat(2,1fr)}.feature,.notice-layout,.search-area{grid-template-columns:1fr}
      .version-grid{grid-template-columns:repeat(2,1fr)}.guides{grid-template-columns:1fr 1fr}
      .guide-card:first-child{grid-column:span 2}.footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:768px){
      .container{width:min(var(--max),calc(100% - 48px))}
      .desktop-nav,.site-header>.nav-wrap>.nav-download{display:none}.mobile-toggle{display:block}
      .mobile-menu{padding:12px 24px 22px;border-top:1px solid var(--line);background:var(--bg)}
      .mobile-menu.open{display:flex;flex-direction:column;gap:3px}
      .mobile-menu>a{padding:11px 8px;font-weight:700;border-radius:8px}.mobile-menu>a:hover{background:var(--green-pale);color:var(--green)}
      .mobile-menu .nav-download{margin-top:9px;color:#fff;text-align:center}
      .section{padding:62px 0}.page-hero{padding:36px 0 30px}
      .section-head{display:block;margin-bottom:24px}.section-head p{margin-top:10px}
      .news-list,.faq-list{grid-template-columns:1fr}.search-area{padding:25px}
      .version-grid,.guides{grid-template-columns:1fr}.guide-card:first-child{grid-column:auto}
      .cta-box{display:block;padding:32px 25px}.cta-box .action-row{margin-bottom:0}
      .footer-bottom{display:block}.footer-bottom span{margin-top:12px;flex-wrap:wrap}
    }
    @media(max-width:520px){
      .container{width:calc(100% - 32px)}.nav-wrap{height:68px}
      h1{font-size:34px}.page-hero-inner{padding:29px 22px}.feature-copy{padding:26px 22px}
      .news-card{grid-template-columns:55px 1fr;padding:17px;gap:12px}.news-thumb{height:55px}.news-thumb:after{width:22px;height:22px;top:16px;left:17px}
      .search-form{display:block}.search-form input{width:100%;margin-bottom:10px}.search-form .btn{width:100%}
      .footer-grid{grid-template-columns:1fr;gap:28px}
    }