/* roulang page: index */
:root{--bg:#101411;--surface:#191f1b;--surface-2:#202821;--paper:#f1f2ea;--ink:#172119;--text:#f1f4eb;--muted:#a9b4a8;--line:#354034;--green:#cbf46a;--purple:#c5b4ff;--radius:20px;--shadow:0 20px 60px #0002;--max:1200px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:105px}body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.85;-webkit-font-smoothing:antialiased}h1,h2,h3,h4,p{margin:0}h1,h2,h3,h4{font-family:inherit;font-weight:750;line-height:1.3}h1{font-size:clamp(36px,5.1vw,66px);letter-spacing:-2px}h2{font-size:clamp(27px,3.2vw,40px);letter-spacing:-1px}h3{font-size:20px}p{font-size:15px}a{color:inherit;text-decoration:none;transition:color .2s,background .2s,transform .2s}a:hover{color:var(--green)}button,input,select,textarea{font:inherit}button{cursor:pointer}img,svg{max-width:100%;display:block}button,a,input,textarea,select{outline-offset:5px}:focus-visible{outline:2px solid #8aac46}::selection{background:var(--green);color:var(--ink)}.container{width:min(var(--max),calc(100% - 64px));margin:auto}.grid-x>.cell{min-width:0}.site-header{position:fixed;top:16px;left:0;right:0;z-index:50}.nav-shell{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;padding:12px 22px;border:1px solid #ffffff21;border-radius:16px;background:#172019c9;backdrop-filter:blur(20px);box-shadow:0 8px 30px #0002;transition:background .2s}.site-header.scrolled .nav-shell{background:#162018f5}.brand{display:flex;gap:11px;align-items:center;font-size:19px;font-weight:800;white-space:nowrap}.brand-mark{width:35px;height:35px;background:var(--green);color:var(--ink);display:grid;place-items:center;border-radius:10px;font-size:22px;transform:rotate(-6deg)}nav{display:flex;align-items:center;gap:7px}nav a{padding:8px 16px;border-radius:9px;font-size:14px;color:#c4cdc0}nav a:hover,nav a.active{background:#c9f46a16;color:var(--green)}.nav-note{font-size:12px;letter-spacing:1px;color:var(--muted);padding-left:20px;border-left:1px solid var(--line)}.menu-toggle{display:none;background:none;color:var(--text);border:1px solid var(--line);border-radius:8px;padding:5px 10px}.hero{padding:160px 0 70px;position:relative;overflow:hidden;background:radial-gradient(ellipse at 85% 55%,#314023 0,transparent 48%),#101411}.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(#ffffff04 1px,transparent 1px),linear-gradient(90deg,#ffffff04 1px,transparent 1px);background-size:64px 64px;pointer-events:none}.hero .container{position:relative}.eyebrow{display:flex;align-items:center;gap:10px;font-size:12px;font-weight:700;letter-spacing:2px;margin-bottom:23px;color:var(--green)}.dot{height:7px;width:7px;border-radius:50%;background:currentColor;display:inline-block;flex:none}.hero h1{max-width:930px}.hero h1 span{color:var(--green)}.hero-summary{max-width:845px;color:#b7c2b4;font-size:16px;line-height:1.95;margin:25px 0 32px}.hero-lower{display:grid;grid-template-columns:.9fr 1.1fr;gap:30px;align-items:stretch}.hero-action{display:flex;flex-direction:column;justify-content:space-between;gap:24px;padding:24px 0}.button{display:inline-flex;align-items:center;justify-content:center;gap:22px;margin:0;border:1px solid transparent;border-radius:10px;font-size:15px;font-weight:750;padding:16px 25px;background:var(--green);color:var(--ink);line-height:1.4;transition:transform .2s,background .2s,box-shadow .2s}.button:hover,.button:focus{background:#dcff95;color:var(--ink);box-shadow:0 8px 25px #c9f46a19;transform:translateY(-2px)}.button:active{transform:translateY(1px)}.hero-action .button{align-self:flex-start}.hero-facts{display:flex;gap:30px}.hero-facts strong{display:block;font-size:23px;line-height:1.4}.hero-facts span{font-size:12px;color:var(--muted)}.console{background:#0c100d;border:1px solid #46533d;border-radius:14px;overflow:hidden;box-shadow:var(--shadow)}.console-top{padding:12px 19px;border-bottom:1px solid #283126;display:flex;justify-content:space-between;gap:12px;font-size:12px;color:var(--muted)}.console-lights{display:flex;gap:5px;align-items:center}.console-lights i{display:block;width:6px;height:6px;border-radius:50%;background:#657654}.console pre{margin:0;padding:22px 26px;color:#b7c6b0;font:13px/1.95 ui-monospace,SFMono-Regular,Consolas,monospace;overflow:auto;background:none;border:none}.code-green{color:var(--green)}.code-purple{color:var(--purple)}.section{padding:78px 0;border-top:1px solid var(--line)}.light{background:var(--paper);color:var(--ink);border-color:#dce1d3}.soft{background:#e6eadf;color:var(--ink);border-color:#d0d7c8}.section-heading{display:flex;gap:40px;justify-content:space-between;align-items:flex-start;margin-bottom:32px}.section-heading h2{max-width:540px}.section-heading p{max-width:510px;color:var(--muted)}.light p,.soft p{color:#5c6859}.section-num{display:block;font-size:11px;letter-spacing:2px;color:#899982;margin-bottom:14px;font-weight:700}.light .section-num,.soft .section-num{color:#6a795d}.split-copy p{margin-top:22px;max-width:460px}.card{margin:0;height:100%;border-radius:var(--radius);border:1px solid var(--line);background:var(--surface);color:var(--text);padding:28px;box-shadow:none;transition:transform .2s,border-color .2s,box-shadow .2s;display:block;overflow:hidden}.card:hover{transform:translateY(-4px);border-color:#708060;box-shadow:var(--shadow)}.card p{color:var(--muted);margin-top:13px}.light .card{background:#fafbf6;color:var(--ink);border-color:#d7decd}.light .card p{color:#5c6859}.card-icon{display:grid;place-items:center;width:43px;height:43px;background:#c9f46a16;color:var(--green);border-radius:12px;margin-bottom:24px;font-size:20px;font-weight:800}.light .card-icon{background:#e6edda;color:#4b662b}.problem-list{list-style:none;margin:0;padding:0}.problem-list li{display:flex;gap:20px;padding:21px 0;border-bottom:1px solid #cbd3c1}.problem-list li:first-child{padding-top:0}.problem-list 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77%);font-size:32px;font-weight:850}.team.red .team-emblem{background:#f1b9a6;color:#723f2b}.team h3{font-size:16px}.vs{color:#778a70;font-weight:850;font-size:25px;font-style:italic}.demo-note{padding:12px 15px;border:1px solid #3b4c32;border-radius:9px;font-size:12px;color:#b2c4a5}.observation{border-left:1px solid #3b4c32;padding-left:35px}.observation h3{margin-bottom:20px}.observation dl{margin:0}.observation dl div{padding:11px 0;border-bottom:1px solid #30412b;display:flex;gap:20px;justify-content:space-between;font-size:13px}.observation dt{color:#a7b49f;font-weight:400}.observation dd{margin:0;color:#e2ebdb}.observation .verdict{color:var(--green);font-size:13px;margin-top:20px}.timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.timeline article{padding:28px;border-right:1px solid var(--line)}.timeline article:last-child{border:none}.timeline 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p{color:var(--muted);font-size:14px}.check-list{list-style:none;margin:24px 0 0;padding:18px 0 0;border-top:1px solid var(--line)}.check-list li{padding:7px 0;font-size:13px;color:#c3ceb9}.check-list li:before{content:"✓";color:var(--green);margin-right:10px}.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:25px}.guard-item{border-top:2px solid #99aa7b;padding-top:20px}.guard-item h3{font-size:17px;margin-bottom:12px}.guard-item p{font-size:13px}.record-section{background:#202b21}.record-wrap{display:grid;grid-template-columns:.8fr 1.2fr;gap:70px}.record-copy p{color:#adbaa4;margin-top:24px}.record-symbol{font-size:72px;color:var(--green);font-weight:800;line-height:1;margin-top:35px}.prediction-form{border:1px solid #46513c;background:#151d16;border-radius:20px;padding:30px}.prediction-form label{font-size:13px;font-weight:600;color:#c8d3c0;margin-bottom:18px;display:block}.prediction-form input,.prediction-form select,.prediction-form 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var(--line);background:#0e130f}.footer-top{display:flex;justify-content:space-between;gap:40px;margin-bottom:32px}.footer-description{max-width:540px;color:#8f9e89;font-size:13px;margin-top:17px}.footer-links{display:flex;gap:20px;align-items:flex-start;font-size:13px;color:#b5c1ad}.footer-bottom{padding-top:22px;border-top:1px solid #283224;display:flex;justify-content:space-between;gap:20px;font-size:11px;color:#82917c}
@media(min-width:1025px){.large-gutter{padding-right:60px}}
@media(max-width:1024px){.container{width:calc(100% - 44px)}.nav-note{display:none}.section{padding:60px 0}.section-heading{gap:28px}.section-heading h2,.section-heading p{max-width:50%}.timeline{grid-template-columns:1fr 1fr}.timeline article:nth-child(2){border-right:0}.timeline article:nth-child(-n+2){border-bottom:1px solid var(--line)}.record-wrap{gap:35px}.channel-grid{grid-template-columns:1fr 1fr}.channel:first-child{grid-column:1/-1}.guard-grid{grid-template-columns:1fr 1fr}.plan{padding:23px}.plan-title{align-items:flex-start;flex-direction:column}.arena{gap:25px}.observation{padding-left:25px}}
@media(max-width:768px){.hero{padding:140px 0 50px}.hero-lower,.arena,.record-wrap{grid-template-columns:1fr}.hero-action{flex-direction:row;align-items:center;padding:0}.hero-facts{gap:20px}.hero-summary{font-size:15px}.section-heading{display:block}.section-heading h2,.section-heading p{max-width:none}.section-heading p{margin-top:20px}.grid-x.card-row{row-gap:20px}.split-copy{margin-bottom:32px}.observation{border-left:0;padding-left:0;border-top:1px solid #3b4c32;padding-top:24px}.plan-grid{grid-template-columns:1fr}.plan{border-right:none;border-bottom:1px solid var(--line);padding:28px}.plan-title{flex-direction:row;align-items:center}.price{margin-top:15px}.footer-top{flex-direction:column;gap:25px}.footer-bottom{flex-direction:column;gap:8px}.evidence-panel{margin-top:30px}.record-symbol{display:none}}
@media(max-width:520px){.container{width:calc(100% - 32px)}.site-header{top:10px}.nav-shell{min-height:62px;padding:10px 12px;gap:10px;flex-wrap:wrap}.brand{font-size:15px;gap:8px}.brand-mark{width:30px;height:30px;font-size:19px}.menu-toggle{display:block;font-size:12px}nav{width:100%;display:none;border-top:1px solid var(--line);padding-top:9px}nav.open{display:flex}nav a{flex:1;text-align:center;padding:8px;font-size:13px}.hero{padding-top:122px}h1{font-size:36px;letter-spacing:-1px}.hero-summary{font-size:14px}.hero-action{align-items:flex-start;flex-direction:column}.hero-facts{gap:35px}.console pre{font-size:11px;padding:18px 15px}.console-top{padding:10px 15px;font-size:11px}.section{padding:47px 0}.timeline{grid-template-columns:1fr}.timeline article{border-right:0;border-bottom:1px solid var(--line);padding:23px}.timeline strong{float:left;margin:0 20px 0 0;font-size:23px}.timeline p{clear:both;padding-top:12px}.channel-grid,.guard-grid,.form-row{grid-template-columns:1fr}.channel:first-child{grid-column:auto}.arena{padding:21px}.arena-head{font-size:11px}.team-emblem{width:60px;height:68px;font-size:26px}.article-item{grid-template-columns:1fr 20px;gap:12px}.article-format{grid-column:1/-1;justify-self:start}.article-item h3{font-size:18px}.card{padding:24px}.prediction-form{padding:22px}.prediction-form .button{width:100%}.footer-links{flex-wrap:wrap;gap:15px}.eyebrow{letter-spacing:1px;font-size:11px}}
@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{transition:none!important}}

/* roulang page: category1 */
:root{--bg:#101411;--surface:#191f1b;--surface-2:#202821;--paper:#f1f2ea;--ink:#172119;--text:#f1f4eb;--muted:#a9b4a8;--line:#354034;--green:#cbf46a;--purple:#c5b4ff;--radius:20px;--shadow:0 20px 60px #0002;--max:1200px}
*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:110px}body{margin:0;background:var(--bg);color:var(--text);font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;line-height:1.85;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none;transition:color .2s,background .2s,transform .2s}a:hover{color:var(--green)}button,input,select,textarea{font:inherit}button{cursor:pointer}img,svg{max-width:100%;display:block}a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--purple);outline-offset:5px}h1,h2,h3,p{margin:0}h1,h2,h3{font-family:inherit;font-weight:800;line-height:1.35}h1{font-size:clamp(34px,4.6vw,62px);letter-spacing:-1.5px}h2{font-size:clamp(27px,3vw,38px)}h3{font-size:20px}p+p{margin-top:14px}.container{width:min(var(--max),calc(100% - 64px));margin:auto}.grid-x>.cell{min-width:0}.site-header{position:fixed;top:16px;left:0;right:0;z-index:50}.nav-shell{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;padding:12px 22px;border:1px solid #ffffff21;border-radius:16px;background:#172019c9;backdrop-filter:blur(20px);box-shadow:0 8px 30px #0002;transition:background .2s}.site-header.scrolled .nav-shell{background:#162018f5}.brand{display:flex;gap:11px;align-items:center;font-size:19px;font-weight:800;white-space:nowrap}.brand-mark{width:35px;height:35px;background:var(--green);color:var(--ink);display:grid;place-items:center;border-radius:10px;font-size:22px;transform:rotate(-6deg)}nav{display:flex;align-items:center;gap:7px}nav a{padding:8px 16px;border-radius:9px;font-size:14px;color:#c4cdc0}nav a:hover,nav a.active{background:#c9f46a16;color:var(--green)}.nav-note{font-size:12px;letter-spacing:1px;color:var(--muted);padding-left:20px;border-left:1px solid var(--line)}.menu-toggle{display:none;background:none;color:var(--text);border:1px solid var(--line);border-radius:8px;padding:5px 10px}.hero{padding:155px 0 64px;position:relative;overflow:hidden;background:radial-gradient(ellipse at 85% 55%,#314023 0,transparent 48%),#101411}.hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(#ffffff04 1px,transparent 1px),linear-gradient(90deg,#ffffff04 1px,transparent 1px);background-size:64px 64px;pointer-events:none}.hero .container{position:relative}.eyebrow{font-size:12px;font-weight:700;letter-spacing:2px;margin-bottom:23px;color:var(--green)}.hero h1 span{color:var(--green)}.hero-summary{color:#b7c2b4;font-size:16px;line-height:1.95;margin:25px 0 30px;max-width:680px}.button{display:inline-flex;align-items:center;justify-content:center;gap:22px;margin:0;border:1px solid transparent;border-radius:10px;font-size:15px;font-weight:750;padding:16px 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