/* roulang page: index */
:root{--bg:#101316;--surface:#191e22;--surface2:#20272b;--text:#edf2ed;--muted:#a0afa8;--accent:#c6f46b;--line:#303a36;--violet:#b9a7ff;--radius:20px;--shadow:0 20px 65px #0003}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input,summary{ -webkit-tap-highlight-color:transparent}button{cursor:pointer}img,svg{max-width:100%;display:block}::selection{background:var(--accent);color:var(--bg)}:focus-visible{outline:2px solid var(--accent);outline-offset:5px}a,button,.card{transition:color .2s,background .2s,transform .2s,border-color .2s}a:hover{color:var(--accent)}button:active,.btn:active{transform:translateY(1px)}.container{width:min(1200px,calc(100% - 64px));margin:auto}.site-header{position:sticky;top:0;z-index:50;background:#101316f2;border-bottom:1px solid var(--line);backdrop-filter:blur(18px)}.nav-wrap{min-height:84px;display:flex;align-items:center;gap:32px}.logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:18px;white-space:nowrap}.logo-icon{width:35px;height:37px;background:var(--accent);color:#101316;display:grid;place-items:center;clip-path:polygon(15% 0,100% 0,85% 100%,0 100%);font-style:italic;font-size:25px}.nav-links{display:flex;gap:25px;align-items:center;white-space:nowrap}.nav-links a{font-size:14px;color:var(--muted);padding:28px 0;border-bottom:2px solid transparent}.nav-links a.active{color:var(--accent);border-color:var(--accent)}.nav-tools{margin-left:auto;display:flex;align-items:center;gap:12px}.search{position:relative}.search input{width:172px;border:1px solid var(--line);border-radius:9px;padding:9px 32px 9px 12px;color:var(--text);background:var(--surface);font-size:13px}.search button{position:absolute;right:10px;top:8px;color:var(--muted);border:0;background:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;background:var(--accent);color:#18200e!important;font-size:14px;font-weight:750;padding:13px 22px;border:1px solid transparent;border-radius:9px}.btn:hover{background:#d8ff95;box-shadow:0 5px 24px #c6f41618}.btn.secondary{background:#ffffff06;color:var(--text)!important;border-color:#60705b}.btn.secondary:hover{background:#ffffff10}.btn.small{padding:9px 15px;font-size:13px}.hero{position:relative;overflow:hidden;background:#19231c;padding:75px 0 64px;border-bottom:1px solid #3d4936}.hero-art{position:absolute;width:70%;height:100%;right:-9%;top:0;opacity:.48;pointer-events:none}.hero:after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,#18211b 0%,#18211be6 40%,transparent 100%);pointer-events:none}.hero-content{position:relative;z-index:2}.eyebrow{display:flex;align-items:center;gap:10px;letter-spacing:2px;font-size:12px;font-weight:700;color:var(--accent);margin-bottom:23px}.dot{width:7px;height:7px;background:var(--accent);border-radius:50%;display:inline-block}.hero h1{font-size:clamp(35px,4.5vw,62px);line-height:1.2;letter-spacing:-2px;font-weight:850;max-width:880px}.hero h1 span{color:var(--accent)}.hero-copy{max-width:710px;color:#c0ccc0;margin:26px 0 29px;font-size:15px;line-height:1.95}.hero-note{margin-top:29px;color:#a8b69e;font-size:12px;display:flex;gap:22px;flex-wrap:wrap}.sticker{position:absolute;right:12px;top:23px;transform:rotate(9deg);background:var(--violet);color:#262038;width:113px;height:113px;border-radius:50%;display:grid;place-content:center;text-align:center;font-weight:800;box-shadow:0 0 0 8px #b9a7ff12}.sticker strong{font-size:28px;line-height:1.3}.section{padding:66px 0;border-bottom:1px solid #26302b}.section.alt{background:#14191c}.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;margin-bottom:30px}.kicker{font-size:11px;letter-spacing:2px;color:var(--accent);font-weight:700;margin-bottom:9px}.section h2{font-size:29px;font-weight:750;letter-spacing:-.6px;line-height:1.4}.desc{font-size:14px;color:var(--muted);max-width:750px;margin-top:15px;line-height:1.95}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;min-width:0}.card:hover{border-color:#62724c;transform:translateY(-3px)}.card h3{font-size:18px;font-weight:700;margin:14px 0 10px}.card p{font-size:14px;color:var(--muted);line-height:1.85}.icon{display:grid;place-items:center;width:44px;height:44px;border-radius:12px;background:#c6f46b12;color:var(--accent);font-size:21px;font-weight:700}.badge{display:inline-flex;align-items:center;gap:6px;font-size:11px;line-height:1.6;border:1px solid #46543c;background:#c6f46b0b;color:var(--accent);border-radius:5px;padding:4px 9px}.badge.purple{color:var(--violet);background:#b9a7ff10;border-color:#494054}.check-list{display:grid;grid-template-columns:1fr 1fr;gap:0 38px}.check-item{display:flex;gap:17px;border-bottom:1px solid var(--line);padding:22px 0}.check-item b{color:var(--accent);font-size:12px;padding-top:4px}.check-item h3{font-size:16px;font-weight:700;margin-bottom:7px}.check-item p{color:var(--muted);font-size:13px}.assurance{display:flex;align-items:center;gap:14px;padding:20px;border:1px solid var(--line);border-radius:12px;background:#191e22}.assurance strong{display:block;font-size:14px}.assurance small{color:var(--muted);font-size:12px}.boundary{border-left:3px solid var(--violet);padding:25px 30px;background:#b9a7ff09;border-radius:0 15px 15px 0}.boundary h3{font-size:18px;font-weight:700}.boundary p{color:#bdb6d1;font-size:14px;margin-top:12px}.topic{display:flex;justify-content:space-between;align-items:center;padding:24px;border:1px solid var(--line);border-radius:12px;background:var(--surface)}.topic strong{display:block;font-size:17px}.topic p{font-size:13px;color:var(--muted);margin-top:8px;max-width:440px}.topic .arrow{font-size:24px;color:var(--accent);margin-left:22px}.demo{border:1px solid #46533b;border-radius:20px;background:#171e19;overflow:hidden;box-shadow:var(--shadow)}.demo-top{display:flex;justify-content:space-between;align-items:center;gap:15px;border-bottom:1px solid #36422d;padding:17px 25px;font-size:13px}.choice{border:1px solid var(--line);background:#202923;border-radius:13px;text-align:left;padding:22px;color:var(--text);width:100%}.choice:hover{border-color:var(--accent);background:#283424}.choice[aria-pressed="true"]{border-color:var(--accent);background:#c6f46b12;box-shadow:inset 0 0 0 1px var(--accent)}.choice strong{display:block;font-size:19px;margin:8px 0}.choice small{display:block;color:var(--muted);font-size:13px}.news-row{display:grid;grid-template-columns:65px 1fr 115px;gap:25px;padding:25px 0;border-bottom:1px solid var(--line)}.news-number{font-size:30px;color:#637162;font-weight:700}.news-row h3{font-size:18px;font-weight:700}.news-row p{font-size:14px;color:var(--muted);margin-top:9px;line-height:1.9}.source{border-top:1px solid var(--line);padding-top:20px;margin-top:23px;font-size:12px;color:var(--muted)}.faq{border-top:1px solid var(--line)}.faq details{border-bottom:1px solid var(--line)}.faq summary{padding:22px 0;font-size:16px;font-weight:650;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";color:var(--accent);font-size:22px}.faq details[open] summary:after{content:"−"}.faq details p{padding:0 40px 23px 0;font-size:14px;color:var(--muted);max-width:950px}.site-footer{padding:42px 0 25px;background:#0c1012}.footer-top{display:flex;justify-content:space-between;gap:35px}.footer-copy{font-size:12px;color:var(--muted);max-width:580px;margin-top:17px}.footer-bottom{display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:21px;margin-top:30px;font-size:11px;color:#7c8b83}#search-status{font-size:12px;color:var(--accent)}[hidden]{display:none!important}
@media(min-width:1280px){.hero{min-height:550px}}
@media(max-width:1024px){.container{width:calc(100% - 44px)}.nav-wrap{gap:23px}.nav-tools .search{display:none}.sticker{right:10px;top:0;width:88px;height:88px}.hero h1{max-width:720px;font-size:49px}.hero-copy{max-width:620px}.hero-art{opacity:.28}.logo{font-size:16px}}
@media(max-width:768px){.nav-wrap{flex-wrap:wrap;gap:0;min-height:70px;padding-top:16px}.nav-tools{padding-bottom:14px}.nav-links{order:3;width:100%;gap:28px;border-top:1px solid var(--line)}.nav-links a{padding:11px 0;font-size:13px}.logo{padding-bottom:14px}.hero{padding:45px 0}.hero h1{font-size:41px;letter-spacing:-1px}.hero-copy{font-size:14px}.sticker{display:none}.section{padding:43px 0}.section h2{font-size:25px}.section-head{align-items:flex-start;flex-direction:column;gap:16px}.check-list{grid-template-columns:1fr}.footer-top{flex-direction:column}.news-row{grid-template-columns:40px 1fr;gap:15px}.news-row>span:last-child{grid-column:2}.hero-art{width:120%;right:-35%}}
@media(max-width:520px){.container{width:calc(100% - 32px)}.hero h1{font-size:34px}.logo{font-size:15px;gap:8px}.logo-icon{width:28px;height:30px;font-size:20px}.nav-tools .btn{font-size:11px;padding:8px 10px}.card{padding:22px}.hero-note{gap:10px 18px}.hero .btn{padding:12px 17px}.boundary{padding:21px}.demo-top{padding:16px;font-size:12px}.news-row h3{font-size:16px}.section h2{font-size:24px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*{transition:none!important}}

/* roulang page: category1 */
:root{--bg:#101316;--surface:#191e22;--surface2:#20272b;--text:#edf2ed;--muted:#a0afa8;--accent:#c6f46b;--line:#303a36;--violet:#b9a7ff;--radius:20px;--shadow:0 20px 65px #0003}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--bg);color:var(--text);font-family:Inter,"PingFang SC","Microsoft YaHei",sans-serif;line-height:1.75;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}button,input{font:inherit}button,a,input,summary{-webkit-tap-highlight-color:transparent}button{cursor:pointer}img,svg{max-width:100%;display:block}a,button,.card{transition:color .2s,background .2s,transform .2s,border-color .2s}a:hover{color:var(--accent)}button:active,.btn:active{transform:translateY(1px)}:focus-visible{outline:2px solid var(--accent);outline-offset:5px}::selection{background:var(--accent);color:var(--bg)}.container{width:min(1200px,calc(100% - 64px));margin:auto}.site-header{position:sticky;top:0;z-index:50;background:#101316f2;border-bottom:1px solid var(--line);backdrop-filter:blur(18px)}.nav-wrap{min-height:84px;display:flex;align-items:center;gap:32px}.logo{display:flex;align-items:center;gap:11px;font-weight:800;font-size:18px;white-space:nowrap}.logo-icon{width:35px;height:37px;background:var(--accent);color:#101316;display:grid;place-items:center;clip-path:polygon(15% 0,100% 0,85% 100%,0 100%);font-style:italic;font-size:25px}.nav-links{display:flex;gap:25px;align-items:center;white-space:nowrap}.nav-links a{font-size:14px;color:var(--muted);padding:28px 0;border-bottom:2px solid transparent}.nav-links a.active,.nav-links a:hover{color:var(--accent)}.nav-links a.active{border-color:var(--accent)}.nav-tools{margin-left:auto;display:flex;align-items:center;gap:12px}.search{position:relative}.search input{width:172px;border:1px solid var(--line);border-radius:9px;padding:9px 32px 9px 12px;color:var(--text);background:var(--surface);font-size:13px}.search button{position:absolute;right:10px;top:8px;color:var(--muted);border:0;background:none}.btn{display:inline-flex;align-items:center;justify-content:center;gap:12px;background:var(--accent);color:#18200e!important;font-size:14px;font-weight:750;padding:13px 22px;border:1px solid transparent;border-radius:9px}.btn:hover{background:#d8ff95;box-shadow:0 5px 24px #c6f41618}.btn.secondary{background:#ffffff06;color:var(--text)!important;border-color:#60705b}.btn.secondary:hover{background:#ffffff10}.btn.small{padding:9px 15px;font-size:13px}.hero{position:relative;overflow:hidden;background:#19231c;padding:48px 0 58px;border-bottom:1px solid #3d4936}.eyebrow{display:flex;align-items:center;gap:10px;letter-spacing:2px;font-size:12px;font-weight:700;color:var(--accent);margin-bottom:20px}.hero h1{font-size:clamp(34px,4vw,54px);line-height:1.22;letter-spacing:-1.5px;font-weight:850}.hero h1 span{color:var(--accent)}.hero-copy{max-width:650px;color:#c0ccc0;margin:23px 0 27px;font-size:15px;line-height:1.95}.hero-note{margin-top:26px;color:#a8b69e;font-size:12px;display:flex;gap:22px;flex-wrap:wrap}.section{padding:66px 0;border-bottom:1px solid #26302b}.section.alt{background:#14191c}.section-head{display:flex;justify-content:space-between;align-items:flex-end;gap:28px;margin-bottom:30px}.section h2{font-size:29px;font-weight:750;letter-spacing:-.6px;line-height:1.4}.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);padding:26px;min-width:0}.card:hover{border-color:#62724c;transform:translateY(-3px)}.card h3{font-size:18px;font-weight:700;margin:14px 0 10px}.card p{font-size:14px;color:var(--muted);line-height:1.85}.badge{display:inline-flex;align-items:center;gap:6px;font-size:11px;line-height:1.6;border:1px solid #46543c;background:#c6f46b0b;color:var(--accent);border-radius:5px;padding:4px 9px}.badge.purple{color:var(--violet);background:#b9a7ff10;border-color:#494054}.check-list{display:grid;grid-template-columns:1fr 1fr;gap:0 38px}.check-item{display:flex;gap:17px;border-bottom:1px solid var(--line);padding:22px 0}.check-item b{color:var(--accent);font-size:12px;padding-top:4px}.check-item h3{font-size:16px;font-weight:700;margin-bottom:7px}.check-item p{color:var(--muted);font-size:13px}.choice[aria-pressed="true"]{border-color:var(--accent);background:#c6f46b12;box-shadow:inset 0 0 0 1px var(--accent)}.news-row{display:grid;grid-template-columns:65px 1fr 115px;gap:25px;padding:25px 0;border-bottom:1px solid var(--line)}.news-row h3{font-size:18px;font-weight:700}.news-row p{font-size:14px;color:var(--muted);margin-top:9px;line-height:1.9}.faq{border-top:1px solid var(--line)}.faq details{border-bottom:1px solid var(--line)}.faq summary{padding:22px 0;font-size:16px;font-weight:650;cursor:pointer;list-style:none;display:flex;justify-content:space-between;gap:20px}.faq summary::-webkit-details-marker{display:none}.faq summary:after{content:"+";color:var(--accent);font-size:22px}.faq details[open] summary:after{content:"−"}.faq details p{padding:0 40px 23px 0;font-size:14px;color:var(--muted);max-width:950px}.site-footer{padding:42px 0 25px;background:#0c1012}.footer-top{display:flex;justify-content:space-between;gap:35px}.footer-copy{font-size:12px;color:var(--muted);max-width:580px;margin-top:17px}.footer-bottom{display:flex;justify-content:space-between;gap:15px;flex-wrap:wrap;border-top:1px solid var(--line);padding-top:21px;margin-top:30px;font-size:11px;color:#7c8b83}#search-status{font-size:12px;color:var(--accent)}
.breadcrumb{color:var(--muted);font-size:12px;margin-bottom:32px;display:flex;gap:12px}.console{border:1px solid #455143;border-radius:16px;background:#0f1512;box-shadow:var(--shadow);overflow:hidden}.console-bar{padding:14px 20px;border-bottom:1px solid #303a36;display:flex;align-items:center;justify-content:space-between;color:var(--muted);font-size:12px}.console-dot{width:7px;height:7px;border-radius:50%;background:var(--accent);display:inline-block;margin-right:8px}.console pre{padding:23px;font-family:ui-monospace,SFMono-Regular,Consolas,monospace;font-size:13px;line-height:2.1;white-space:pre-wrap;overflow-wrap:anywhere;color:#ccd8c6}.console-foot{padding:13px 22px;font-size:11px;background:#c6f46b07;color:var(--muted);border-top:1px solid var(--line)}.muted{color:var(--muted)}.feature-symbol{width:42px;height:42px;display:grid;place-items:center;background:#c6f46b12;color:var(--accent);border:1px solid #455438;border-radius:12px;font-weight:700}.scenario{padding:25px 0;border-top:1px solid var(--line);display:grid;grid-template-columns:110px 1fr;gap:20px}.scenario h3{font-weight:700}.scenario p{color:var(--muted);font-size:14px}.arena{border:1px solid var(--line);border-radius:20px;overflow:hidden;background:#141b18}.arena-visual{background:radial-gradient(ellipse at center,#354731 0%,#15201a 65%);padding:22px;position:relative}.arena-visual svg{height:205px;width:100%}.analysis-line{display:flex;justify-content:space-between;gap:16px;padding:14px 0;border-bottom:1px solid var(--line);font-size:13px}.analysis-line span{color:var(--muted)}.callout{border-left:3px solid var(--accent);padding:16px 20px;background:#c6f46b06;color:#bcc9b8;font-size:13px}.news-number{color:var(--violet);font-size:22px;font-weight:700}.choice{padding:20px;text-align:left;border:1px solid var(--line);background:var(--surface);border-radius:12px;color:var(--text)}.choice:hover{border-color:#799257;background:var(--surface2)}.choice strong{display:block;font-size:16px}.choice span{display:block;font-size:12px;color:var(--muted);margin-top:6px}.prediction-box{background:#1b251b;border:1px solid #47583b;border-radius:24px;padding:36px}.prediction-status{min-height:28px;color:var(--accent);font-size:13px;margin-top:20px}.text-link{color:var(--accent);font-size:13px}.topic-filter{border:1px solid var(--line);background:var(--surface);color:var(--muted);border-radius:8px;font-size:12px;padding:7px 13px}.topic-filter:hover,.topic-filter[aria-pressed="true"]{color:var(--accent);border-color:#718756;background:#c6f46b0b}[hidden]{display:none!important}
@media(min-width:1536px){.container{max-width:1200px}}
@media(max-width:1024px){.container{width:calc(100% - 44px)}.nav-wrap{gap:23px}.logo{font-size:16px}.search input{width:145px}.nav-links{gap:18px}.nav-tools{gap:8px}.hero h1{font-size:42px}.section{padding:54px 0}}
@media(max-width:768px){html{scroll-padding-top:155px}.nav-wrap{flex-wrap:wrap;gap:0;min-height:70px;padding-top:16px}.nav-tools{padding-bottom:14px}.nav-tools .search{display:none}.nav-links{order:3;width:100%;gap:28px;border-top:1px solid var(--line)}.nav-links a{padding:11px 0;font-size:13px}.logo{padding-bottom:14px}.hero{padding:32px 0 42px}.hero h1{font-size:39px}.hero-copy{font-size:14px}.section{padding:43px 0}.section h2{font-size:25px}.section-head{align-items:flex-start;flex-direction:column;gap:16px}.check-list{grid-template-columns:1fr}.footer-top{flex-direction:column}.news-row{grid-template-columns:40px 1fr;gap:15px}.news-row>span:last-child{grid-column:2}.prediction-box{padding:25px}}
@media(max-width:520px){.container{width:calc(100% - 32px)}.hero h1{font-size:33px;letter-spacing:-1px}.logo{font-size:15px;gap:8px}.logo-icon{width:28px;height:30px;font-size:20px}.nav-tools .btn{font-size:11px;padding:8px 10px;gap:5px}.scenario{grid-template-columns:1fr;gap:9px}.console pre{padding:18px;font-size:12px}.card{padding:22px}.prediction-box{padding:22px}.hero-note{gap:12px}.breadcrumb{margin-bottom:25px}.footer-bottom{font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}a,button,.card{transition:none}}