/* roulang page: index */
:root{
            --ink:#171a1b;
            --ink-2:#222829;
            --paper:#f4f1e9;
            --paper-2:#fffdf7;
            --mint:#55f0c0;
            --mint-deep:#16b98c;
            --coral:#ff765c;
            --yellow:#ffd166;
            --text:#202728;
            --muted:#697574;
            --line:#d9ded7;
            --dark-line:#3b4644;
            --radius:16px;
            --shadow:0 18px 45px rgba(24,34,32,.10);
            --container:1200px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;background:var(--paper);color:var(--text);line-height:1.7}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        :focus-visible{outline:3px solid var(--coral);outline-offset:4px}
        .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
        .site-header{background:var(--ink);color:#fff;position:sticky;top:0;z-index:20;border-bottom:3px solid var(--mint)}
        .nav-wrap{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .logo{display:flex;align-items:center;gap:11px;font-weight:900;letter-spacing:-.04em;white-space:nowrap}
        .logo-mark{width:38px;height:38px;background:var(--mint);color:var(--ink);display:grid;place-items:center;clip-path:polygon(0 0,100% 0,100% 76%,76% 100%,0 100%);font-weight:950}
        .logo-text{font-size:16px}
        .logo-text small{display:block;color:#aebbb7;font-size:10px;letter-spacing:.12em;font-weight:700}
        .main-nav{display:flex;align-items:center;gap:7px}
        .main-nav a{color:#dce6e2;padding:9px 13px;border:1px solid transparent;font-size:14px;transition:.2s ease}
        .main-nav a:hover,.main-nav a.active{color:var(--mint);border-bottom-color:var(--mint)}
        .nav-cta,.btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;border-radius:8px;padding:13px 20px;font-weight:800;transition:transform .2s,background .2s,box-shadow .2s}
        .nav-cta{background:var(--coral);color:#fff;font-size:13px}
        .nav-cta:hover,.btn-primary:hover{background:#ed5f48;transform:translateY(-2px);box-shadow:0 9px 20px rgba(255,118,92,.25)}
        .menu-toggle{display:none;background:transparent;border:1px solid #53605d;color:#fff;padding:9px 12px;border-radius:7px}
        .hero{background:var(--ink);color:#fff;min-height:650px;display:flex;align-items:center;position:relative;overflow:hidden}
        .hero:after{content:"";position:absolute;inset:0;opacity:.12;background-image:linear-gradient(#fff 1px,transparent 1px),linear-gradient(90deg,#fff 1px,transparent 1px);background-size:44px 44px;mask-image:linear-gradient(90deg,#000,transparent 75%)}
        .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;padding:84px 0}
        .eyebrow,.section-kicker{color:var(--mint);font-size:12px;font-weight:900;letter-spacing:.14em;text-transform:uppercase;margin-bottom:18px}
        h1{font-size:clamp(36px,5vw,68px);line-height:1.13;letter-spacing:-.06em;max-width:680px}
        .hero-copy{font-size:18px;color:#b7c7c1;max-width:570px;margin:25px 0 31px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
        .btn-primary{background:var(--mint);color:var(--ink)}
        .btn-secondary{background:transparent;border:1px solid #66726f;color:#fff}
        .btn-secondary:hover{border-color:var(--mint);color:var(--mint);transform:translateY(-2px)}
        .hero-art{min-height:370px;position:relative}
        .arcade-panel{position:absolute;inset:20px 0 20px 40px;background:#293331;border:1px solid #50605c;box-shadow:18px 18px 0 var(--coral);padding:24px;transform:rotate(3deg)}
        .panel-top{display:flex;justify-content:space-between;color:var(--mint);font-size:12px;font-weight:800;border-bottom:1px solid #52615d;padding-bottom:14px}
        .screen-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:13px;margin-top:18px}
        .screen-main{height:210px;background:#111817;border:1px solid #60716b;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
        .screen-main:before{content:"C7";font-size:150px;font-weight:950;color:var(--mint);opacity:.15;position:absolute}
        .screen-main strong{font-size:30px;letter-spacing:.08em;z-index:1}
        .screen-side{display:grid;gap:13px}
        .mini-screen{background:var(--coral);min-height:98px;padding:15px;color:var(--ink);font-weight:900}
        .mini-screen:last-child{background:var(--yellow)}
        .art-tag{position:absolute;left:0;bottom:0;background:var(--mint);color:var(--ink);padding:10px 14px;font-weight:900;transform:rotate(-4deg)}
        .quick-strip{background:var(--paper-2);border-bottom:1px solid var(--line)}
        .quick-grid{display:grid;grid-template-columns:repeat(4,1fr)}
        .quick-item{padding:25px 22px;border-right:1px solid var(--line);display:flex;gap:15px;align-items:flex-start}
        .quick-item:last-child{border-right:0}
        .quick-num{font-size:24px;color:var(--mint-deep);font-weight:900}
        .quick-item h3{font-size:16px;margin-bottom:3px}
        .quick-item p{font-size:13px;color:var(--muted)}
        .section{padding:105px 0}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:35px}
        .section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;letter-spacing:-.045em}
        .section-head p{max-width:460px;color:var(--muted)}
        .text-link{font-weight:900;color:var(--mint-deep);white-space:nowrap}
        .content-showcase{display:grid;grid-template-columns:1.35fr .65fr;gap:18px}
        .feature-card,.topic-card{position:relative;overflow:hidden;border-radius:var(--radius);min-height:360px;padding:30px;display:flex;flex-direction:column;justify-content:end}
        .feature-card{background:var(--ink);color:#fff}
        .feature-card:before{content:"C7 GAMES";position:absolute;top:20px;right:24px;color:var(--mint);font-size:13px;font-weight:900;letter-spacing:.15em}
        .feature-card:after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,transparent 35%,rgba(85,240,192,.18));pointer-events:none}
        .topic-stack{display:grid;gap:18px}
        .topic-card{min-height:171px;background:var(--coral);color:var(--ink)}
        .topic-card:nth-child(2){background:var(--yellow)}
        .card-content{position:relative;z-index:1}
        .badge{display:inline-flex;width:max-content;border:1px solid currentColor;border-radius:100px;padding:3px 10px;font-size:11px;font-weight:900;margin-bottom:14px}
        .feature-card h3{font-size:30px;line-height:1.25;max-width:460px}
        .topic-card h3{font-size:20px;line-height:1.3}
        .feature-card p,.topic-card p{margin-top:10px;font-size:14px;opacity:.82}
        .download-section{background:var(--ink-2);color:#fff;position:relative;overflow:hidden}
        .download-section:before{content:"7";position:absolute;right:5%;top:-100px;font-size:480px;font-weight:950;line-height:1;color:var(--mint);opacity:.06}
        .download-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center;position:relative}
        .download-grid h2{font-size:clamp(30px,4vw,50px);line-height:1.2;letter-spacing:-.05em}
        .download-grid p{color:#b8c6c1;margin:20px 0 28px;max-width:520px}
        .download-points{display:flex;gap:20px;flex-wrap:wrap;margin-top:27px;color:#dfeae5;font-size:13px}
        .download-points span:before{content:"✓";color:var(--mint);font-weight:900;margin-right:7px}
        .device-zone{display:flex;justify-content:center;align-items:center;gap:28px}
        .phone{width:205px;height:365px;background:#101514;border:8px solid #68746f;border-radius:28px;padding:15px;box-shadow:12px 13px 0 var(--coral);transform:rotate(-5deg)}
        .phone-screen{height:100%;background:var(--mint);color:var(--ink);padding:17px;display:flex;flex-direction:column;justify-content:space-between}
        .phone-screen strong{font-size:26px;line-height:1}
        .phone-screen div{border:2px solid var(--ink);padding:12px;font-size:12px;font-weight:900}
        .qr-box{width:152px;height:152px;background:#f7f4eb;color:var(--ink);display:grid;place-items:center;text-align:center;padding:15px;border:5px solid var(--coral);font-size:12px;font-weight:800}
        .qr-box span{display:block;border:1px dashed #8f9994;padding:25px 8px}
        .updates{background:var(--paper-2)}
        .updates-layout{display:grid;grid-template-columns:.8fr 1.2fr;gap:50px}
        .update-intro{border-left:5px solid var(--coral);padding-left:24px}
        .update-intro p{color:var(--muted);margin:15px 0 25px}
        .update-list{border-top:1px solid var(--line)}
        .update-item{display:grid;grid-template-columns:120px 1fr auto;gap:20px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line);transition:.2s}
        .update-item:hover{padding-left:9px;background:#fffdf7}
        .update-date{font-size:12px;color:var(--muted)}
        .update-item h3{font-size:17px}
        .update-item p{font-size:13px;color:var(--muted);margin-top:3px}
        .update-arrow{font-size:22px;color:var(--coral)}
        .empty-state{padding:28px 0;color:var(--muted);font-size:14px}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:2px solid var(--ink);position:relative}
        .step{padding:28px 22px 10px 0;border-right:1px solid var(--line);margin-right:22px}
        .step:last-child{border-right:0}
        .step-number{font-size:36px;color:var(--coral);font-weight:950;line-height:1}
        .step h3{font-size:18px;margin:16px 0 7px}
        .step p{font-size:14px;color:var(--muted)}
        .faq-section{background:#e7e4dc}
        .faq-layout{display:grid;grid-template-columns:.7fr 1.3fr;gap:70px}
        .faq-list{border-top:1px solid #afb7b0}
        details{border-bottom:1px solid #afb7b0;padding:19px 0}
        summary{list-style:none;cursor:pointer;font-size:17px;font-weight:800;display:flex;justify-content:space-between;gap:20px}
        summary::-webkit-details-marker{display:none}
        summary:after{content:"+";color:var(--coral);font-size:24px;line-height:1}
        details[open] summary:after{content:"−"}
        details p{color:var(--muted);font-size:14px;padding:13px 35px 0 0}
        .bottom-cta{background:var(--coral);color:var(--ink);padding:72px 0}
        .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
        .cta-inner h2{font-size:clamp(28px,4vw,45px);line-height:1.2;letter-spacing:-.05em}
        .cta-inner p{margin-top:9px;max-width:600px}
        .cta-inner .btn{background:var(--ink);color:#fff}
        .cta-inner .btn:hover{background:#303938;transform:translateY(-2px)}
        .site-footer{background:var(--ink);color:#dce6e2;padding:60px 0 25px}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:35px;padding-bottom:45px}
        .footer-brand p{color:#9caaa5;font-size:13px;margin-top:17px;max-width:300px}
        .footer-title{font-size:13px;color:var(--mint);font-weight:900;margin-bottom:15px}
        .footer-links{display:grid;gap:8px;font-size:13px;color:#acbbb5}
        .footer-links a:hover{color:var(--mint)}
        .footer-bottom{border-top:1px solid var(--dark-line);padding-top:20px;display:flex;justify-content:space-between;gap:20px;color:#82908b;font-size:12px}
        @media(max-width:1024px){
            .main-nav a{padding:8px 8px;font-size:13px}.hero-inner{gap:35px}.section{padding:80px 0}
        }
        @media(max-width:768px){
            .container{width:min(calc(100% - 34px),var(--container))}
            .nav-wrap{height:68px}.menu-toggle{display:block}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--ink);padding:14px 17px 20px;border-bottom:2px solid var(--mint);flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.main-nav a{padding:11px 5px}.nav-cta{display:none}
            .hero{min-height:auto}.hero-inner,.download-grid,.updates-layout,.faq-layout{grid-template-columns:1fr;gap:42px}.hero-inner{padding:70px 0 85px}.hero-art{min-height:320px}.arcade-panel{inset:15px 8px 15px 20px}.quick-grid{grid-template-columns:1fr 1fr}.quick-item{border-bottom:1px solid var(--line)}.content-showcase{grid-template-columns:1fr}.feature-card{min-height:330px}.download-grid{gap:20px}.device-zone{justify-content:flex-start;padding:15px 0 25px}.updates-layout{gap:30px}.section-head{display:block}.section-head p{margin-top:14px}.text-link{display:inline-block;margin-top:16px}.steps{grid-template-columns:1fr 1fr;gap:10px}.step{border-right:0;margin-right:0;padding-bottom:25px}.cta-inner{display:block}.cta-inner .btn{margin-top:25px}.footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
        }
        @media(max-width:520px){
            h1{font-size:38px}.hero-copy{font-size:16px}.hero-actions{display:grid;grid-template-columns:1fr}.btn{width:100%}.quick-grid{grid-template-columns:1fr}.quick-item{border-right:0}.screen-grid{grid-template-columns:1fr}.screen-side{display:flex}.mini-screen{min-height:70px;flex:1}.screen-main{height:155px}.feature-card h3{font-size:25px}.device-zone{gap:18px}.phone{width:165px;height:300px}.qr-box{width:125px;height:125px}.qr-box span{padding:17px 5px}.update-item{grid-template-columns:1fr auto;gap:4px 12px}.update-date{grid-column:1/-1}.update-arrow{grid-column:2;grid-row:2}.steps{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}
        }

/* roulang page: index */
:root{
            --bg:#0c0b12;
            --bg-soft:#14121d;
            --panel:#191722;
            --panel-2:#211d2d;
            --ink:#f2f0f7;
            --muted:#a7a2b5;
            --line:rgba(255,255,255,.1);
            --cyan:#55f4c7;
            --cyan-dark:#1fb995;
            --orange:#ffad67;
            --purple:#8b73ff;
            --radius:18px;
            --shadow:0 18px 50px rgba(0,0,0,.28);
            --container:1180px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{
            background:var(--bg);
            color:var(--ink);
            font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
            line-height:1.7;
            overflow-x:hidden;
        }
        body:before{
            content:"";
            position:fixed;inset:0;pointer-events:none;opacity:.18;
            background-image:linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
            background-size:56px 56px;
            mask-image:linear-gradient(to bottom,black,transparent 72%);
        }
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:auto}
        .eyebrow{
            color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:.18em;
            text-transform:uppercase;margin-bottom:14px
        }
        .section{padding:104px 0;position:relative}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:30px;margin-bottom:35px}
        h1,h2,h3{line-height:1.18;letter-spacing:-.035em}
        h1{font-size:clamp(38px,5.7vw,76px);max-width:760px}
        h2{font-size:clamp(28px,3.2vw,44px)}
        h3{font-size:20px}
        .lead{color:var(--muted);font-size:17px;max-width:650px}
        .topbar{
            position:sticky;top:0;z-index:20;background:rgba(12,11,18,.88);
            border-bottom:1px solid var(--line);backdrop-filter:blur(15px)
        }
        .nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:30px}
        .brand{display:flex;align-items:center;gap:12px;font-weight:900;letter-spacing:-.03em;white-space:nowrap}
        .brand-mark{
            width:38px;height:38px;border-radius:11px;background:var(--cyan);color:#10151a;
            display:grid;place-items:center;font-size:18px;box-shadow:0 0 22px rgba(85,244,199,.24)
        }
        .brand-text{font-size:18px}.brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.16em;font-weight:600}
        .nav-links{display:flex;align-items:center;gap:27px}
        .nav-links a{color:var(--muted);font-size:14px;position:relative;padding:26px 0}
        .nav-links a:hover,.nav-links a:focus,.nav-links a.active{color:var(--cyan)}
        .nav-links a.active:after{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--cyan)}
        .nav-actions{display:flex;align-items:center;gap:12px}
        .btn{
            display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;
            border-radius:10px;padding:12px 19px;font-size:14px;font-weight:800;transition:.22s ease;
        }
        .btn-primary{background:var(--cyan);color:#0c1917}
        .btn-primary:hover{background:#8affdb;transform:translateY(-2px);box-shadow:0 9px 24px rgba(85,244,199,.2)}
        .btn-secondary{border-color:var(--line);color:var(--ink);background:rgba(255,255,255,.025)}
        .btn-secondary:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
        .menu-toggle{display:none;background:none;border:1px solid var(--line);color:var(--ink);border-radius:9px;padding:8px 11px}
        :focus-visible{outline:3px solid var(--orange);outline-offset:3px}
        .hero{min-height:650px;padding:105px 0 90px;position:relative;overflow:hidden}
        .hero:after{
            content:"";position:absolute;width:560px;height:560px;right:-170px;top:-130px;
            border:1px solid rgba(85,244,199,.18);border-radius:50%;box-shadow:0 0 0 42px rgba(85,244,199,.025),0 0 0 90px rgba(139,115,255,.025)
        }
        .hero-grid{display:grid;grid-template-columns:1.08fr .92fr;align-items:center;gap:72px;position:relative;z-index:1}
        .hero h1{margin-bottom:25px}
        .hero h1 span{color:var(--cyan)}
        .hero-copy .lead{margin-bottom:30px}
        .hero-actions{display:flex;gap:13px;flex-wrap:wrap}
        .hero-note{margin-top:27px;display:flex;gap:20px;color:var(--muted);font-size:13px}
        .hero-note b{color:var(--ink)}
        .visual-stage{height:430px;position:relative}
        .visual-main{
            position:absolute;inset:28px 0 0 48px;border:1px solid rgba(85,244,199,.24);
            border-radius:25px;background:linear-gradient(140deg,#242034,#101319);overflow:hidden;box-shadow:var(--shadow);
        }
        .visual-main:before{content:"C7";position:absolute;font-size:240px;font-weight:900;line-height:1;right:-20px;bottom:-36px;color:rgba(85,244,199,.08)}
        .visual-top{display:flex;justify-content:space-between;padding:21px;border-bottom:1px solid var(--line);font-size:12px;color:var(--muted)}
        .signal{color:var(--cyan);display:flex;gap:6px;align-items:center}.signal i{width:7px;height:7px;border-radius:50%;background:var(--cyan)}
        .visual-content{padding:31px;position:relative;z-index:1}.visual-content h2{font-size:33px;max-width:260px;margin-bottom:13px}
        .visual-content p{color:var(--muted);font-size:14px;max-width:250px}
        .arc{position:absolute;width:270px;height:270px;border:2px solid var(--cyan);border-left-color:transparent;border-bottom-color:transparent;border-radius:50%;right:35px;top:90px;transform:rotate(35deg);opacity:.7}
        .float-tag{position:absolute;background:var(--panel);border:1px solid var(--line);padding:13px 16px;border-radius:12px;font-size:13px;box-shadow:var(--shadow)}
        .float-tag strong{display:block;color:var(--cyan);font-size:20px;line-height:1.2}.tag-a{left:0;top:75px}.tag-b{right:-12px;bottom:42px;color:var(--muted)}
        .entry-strip{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-soft)}
        .entry-grid{display:grid;grid-template-columns:repeat(4,1fr)}
        .entry{padding:27px 22px;border-right:1px solid var(--line);transition:.2s}.entry:first-child{padding-left:0}.entry:last-child{border:0}
        .entry:hover{background:rgba(85,244,199,.04)}.entry-no{color:var(--cyan);font-size:12px;font-weight:800;margin-bottom:8px}.entry p{font-size:13px;color:var(--muted);margin-top:5px}
        .content-layout{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
        .feature-card,.mini-card,.download-box,.proof-box{border:1px solid var(--line);background:var(--panel);border-radius:var(--radius);overflow:hidden}
        .feature-card{min-height:365px;position:relative;padding:32px;background:linear-gradient(135deg,#252038,#15151d 60%)}
        .feature-card:after{content:"";position:absolute;width:240px;height:240px;border-radius:50%;right:40px;top:62px;border:34px solid rgba(139,115,255,.17);box-shadow:0 0 0 18px rgba(85,244,199,.07)}
        .feature-card .card-content{position:relative;z-index:1;max-width:390px}.badge{display:inline-block;color:var(--cyan);background:rgba(85,244,199,.1);border:1px solid rgba(85,244,199,.24);border-radius:99px;padding:4px 10px;font-size:12px;font-weight:700;margin-bottom:25px}
        .feature-card h3{font-size:31px;margin-bottom:13px}.feature-card p{color:var(--muted);font-size:14px;margin-bottom:25px}
        .mini-list{display:grid;gap:20px}.mini-card{padding:23px;min-height:172px;position:relative}.mini-card:hover,.feature-card:hover,.download-box:hover{border-color:rgba(85,244,199,.45)}
        .mini-card p{color:var(--muted);font-size:13px;margin:9px 0 17px}.text-link{color:var(--cyan);font-size:13px;font-weight:800}
        .download-box{padding:38px;display:grid;grid-template-columns:1fr 240px;align-items:center;gap:35px;background:linear-gradient(110deg,#171d25,#211b2e)}
        .download-box h2{margin-bottom:14px}.download-box p{color:var(--muted);max-width:580px;margin-bottom:24px}
        .download-points{display:flex;gap:18px;flex-wrap:wrap;color:#d8d5df;font-size:13px;margin-top:18px}.download-points span:before{content:"✓";color:var(--cyan);margin-right:7px}
        .device{height:260px;border:7px solid #31303a;border-radius:30px;background:#0e1115;padding:14px;box-shadow:var(--shadow);transform:rotate(5deg);position:relative}
        .device:before{content:"";display:block;width:54px;height:5px;border-radius:5px;background:#383741;margin:0 auto 20px}.device-screen{height:190px;border-radius:14px;background:linear-gradient(150deg,#2b2850,#123b3a);padding:18px}.device-screen b{font-size:24px;color:var(--cyan)}.screen-line{height:8px;background:rgba(255,255,255,.16);border-radius:5px;margin-top:19px}.screen-line.short{width:55%;margin-top:10px}
        .news-wrap{display:grid;grid-template-columns:.78fr 1.22fr;gap:28px;align-items:start}.news-intro{padding:30px 0}.news-intro p{color:var(--muted);margin:17px 0 24px}
        .news-list{border-top:1px solid var(--line)}.news-item{display:grid;grid-template-columns:115px 1fr auto;gap:18px;align-items:center;padding:20px 0;border-bottom:1px solid var(--line);transition:.2s}.news-item:hover{padding-left:8px;background:rgba(255,255,255,.02)}.news-meta{color:var(--muted);font-size:12px}.news-item h3{font-size:16px}.news-item p{color:var(--muted);font-size:13px;margin-top:4px}.news-cat{color:var(--orange);font-size:12px;white-space:nowrap}
        .trust-band{display:grid;grid-template-columns:1fr 1fr 1fr;gap:1px;background:var(--line);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.trust-cell{background:var(--panel);padding:28px}.trust-cell strong{font-size:28px;color:var(--cyan);display:block}.trust-cell span{font-size:13px;color:var(--muted)}
        .faq{max-width:850px;margin:auto}.faq details{border-top:1px solid var(--line);padding:22px 0}.faq details:last-child{border-bottom:1px solid var(--line)}.faq summary{cursor:pointer;font-size:17px;font-weight:750;list-style:none;display:flex;justify-content:space-between}.faq summary:after{content:"+";color:var(--cyan);font-size:24px;font-weight:400}.faq details[open] summary:after{content:"−"}.faq details p{color:var(--muted);font-size:14px;max-width:720px;padding:14px 30px 0 0}
        .cta{padding:50px 60px;border:1px solid rgba(85,244,199,.25);border-radius:var(--radius);background:linear-gradient(105deg,rgba(85,244,199,.12),rgba(139,115,255,.1));display:flex;justify-content:space-between;align-items:center;gap:28px}.cta p{color:var(--muted);margin-top:8px}
        footer{background:#09090e;border-top:1px solid var(--line);padding:54px 0 25px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}.footer-brand p{color:var(--muted);font-size:13px;max-width:270px;margin-top:15px}.footer-col h4{font-size:13px;margin-bottom:15px}.footer-col a{display:block;color:var(--muted);font-size:13px;margin:8px 0}.footer-col a:hover{color:var(--cyan)}.copyright{border-top:1px solid var(--line);margin-top:40px;padding-top:20px;color:#716d7c;font-size:12px;display:flex;justify-content:space-between;gap:20px}
        .empty{padding:34px;border:1px dashed var(--line);border-radius:14px;color:var(--muted);font-size:14px;text-align:center;background:rgba(255,255,255,.02)}
        @media(max-width:900px){.hero-grid{grid-template-columns:1fr;gap:35px}.visual-stage{max-width:650px}.entry-grid{grid-template-columns:repeat(2,1fr)}.entry:nth-child(2){border-right:0}.entry:nth-child(-n+2){border-bottom:1px solid var(--line)}.content-layout,.news-wrap{grid-template-columns:1fr}.download-box{grid-template-columns:1fr}.device{display:none}.footer-grid{grid-template-columns:1.5fr 1fr 1fr}}
        @media(max-width:680px){.container{width:min(100% - 32px,var(--container))}.nav{height:68px}.nav-links,.nav-actions{display:none}.menu-toggle{display:block}.nav.menu-open .nav-links{display:flex;position:absolute;top:68px;left:16px;right:16px;padding:12px 20px;flex-direction:column;align-items:stretch;background:#17151f;border:1px solid var(--line);border-radius:12px;gap:0}.nav.menu-open .nav-links a{padding:12px 0}.nav.menu-open .nav-links a.active:after{display:none}.hero{padding:72px 0 65px;min-height:auto}.hero-note{gap:10px;flex-direction:column}.visual-stage{height:300px}.visual-main{inset:12px 0 0 20px}.visual-content{padding:24px}.visual-content h2{font-size:26px}.arc{width:170px;height:170px;right:20px;top:80px}.float-tag{padding:9px 12px}.tag-a{left:0;top:45px}.tag-b{right:0;bottom:15px}.section{padding:70px 0}.section-head{display:block}.section-head .lead{margin-top:14px}.entry-grid{grid-template-columns:1fr}.entry,.entry:first-child{padding:20px 0;border-right:0!important;border-bottom:1px solid var(--line)}.entry:last-child{border-bottom:0}.feature-card{min-height:350px;padding:24px}.feature-card h3{font-size:27px}.download-box{padding:27px 22px}.news-item{grid-template-columns:1fr auto;gap:5px 12px}.news-item .news-meta{grid-column:1}.news-item p{grid-column:1/-1}.trust-band{grid-template-columns:1fr}.cta{padding:30px 23px;display:block}.cta .btn{margin-top:22px;width:100%}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-top:8px}}

/* roulang page: article */
:root{
            --bg:#0c0b12;
            --bg-soft:#14121d;
            --panel:#191722;
            --panel-2:#211d2d;
            --ink:#f2f0f7;
            --muted:#a7a2b5;
            --line:rgba(255,255,255,.1);
            --cyan:#55f4c7;
            --cyan-dark:#1fb995;
            --orange:#ffad67;
            --purple:#8b73ff;
            --coral:#ff765c;
            --radius:18px;
            --shadow:0 18px 50px rgba(0,0,0,.28);
            --container:1180px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--bg);color:var(--ink);font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible{outline:3px solid var(--orange);outline-offset:4px}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
        .topbar{height:78px;background:#111017;border-bottom:1px solid rgba(85,244,199,.35);position:sticky;top:0;z-index:20}
        .nav{height:100%;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;white-space:nowrap;font-weight:900;letter-spacing:-.04em}
        .brand-mark{width:39px;height:39px;background:var(--cyan);color:#111017;display:grid;place-items:center;clip-path:polygon(0 0,100% 0,100% 76%,76% 100%,0 100%);font-weight:950}
        .brand-text{font-size:16px}
        .brand-text small{display:block;color:#a7a2b5;font-size:10px;letter-spacing:.12em;font-weight:700}
        .nav-links{display:flex;align-items:center;gap:5px}
        .nav-links a{color:#d9d5e3;padding:9px 13px;border:1px solid transparent;font-size:14px;transition:.2s ease}
        .nav-links a:hover,.nav-links a.active{color:var(--cyan);border-bottom-color:var(--cyan)}
        .nav-actions{display:flex;align-items:center}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:9px;padding:12px 19px;font-weight:800;transition:transform .2s,background .2s,box-shadow .2s,border-color .2s}
        .btn-primary{background:var(--cyan);color:#101117}
        .btn-primary:hover{background:#7bffda;color:#101117;transform:translateY(-2px);box-shadow:0 9px 22px rgba(85,244,199,.2)}
        .btn-secondary{background:transparent;border-color:#5f596d;color:var(--ink)}
        .btn-secondary:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
        .menu-toggle{display:none;background:transparent;border:1px solid #5f596d;color:#fff;padding:8px 12px;border-radius:8px}
        .article-hero{position:relative;overflow:hidden;padding:82px 0 76px;background:var(--bg-soft);border-bottom:1px solid var(--line)}
        .article-hero:before{content:"C7";position:absolute;right:8%;top:-90px;color:var(--cyan);font-size:420px;font-weight:950;line-height:1;opacity:.035;pointer-events:none}
        .article-hero:after{content:"";position:absolute;inset:0;opacity:.08;background-image:linear-gradient(var(--cyan) 1px,transparent 1px),linear-gradient(90deg,var(--cyan) 1px,transparent 1px);background-size:46px 46px;mask-image:linear-gradient(90deg,#000,transparent 70%);pointer-events:none}
        .hero-inner{position:relative;z-index:1}
        .breadcrumb{display:flex;align-items:center;gap:10px;color:var(--muted);font-size:13px;margin:0 0 28px}
        .breadcrumb a:hover{color:var(--cyan)}
        .breadcrumb .slash{color:#5f596d}
        .article-label{display:inline-flex;align-items:center;border:1px solid var(--cyan);border-radius:100px;padding:5px 13px;color:var(--cyan);font-size:12px;font-weight:800;margin-bottom:19px}
        h1{max-width:900px;font-size:clamp(34px,5vw,66px);line-height:1.18;letter-spacing:-.055em;margin:0;color:#fff}
        .article-lead{max-width:780px;color:#b9b4c6;font-size:18px;margin:23px 0 28px}
        .article-meta{display:flex;flex-wrap:wrap;gap:20px;color:var(--muted);font-size:13px}
        .article-meta strong{color:#e8e4ef;font-weight:700}
        .article-layout{display:grid;grid-template-columns:minmax(0,780px) 270px;gap:72px;align-items:start;padding:78px 0 100px}
        .article-content{min-width:0;color:#d1cdd9;font-size:17px}
        .article-content>*:first-child{margin-top:0}
        .article-content h2{color:#fff;font-size:30px;line-height:1.3;letter-spacing:-.035em;margin:48px 0 17px;padding-left:18px;border-left:3px solid var(--cyan)}
        .article-content h3{color:#fff;font-size:23px;line-height:1.4;margin:35px 0 13px}
        .article-content p{margin:0 0 22px}
        .article-content ul,.article-content ol{padding-left:25px;margin:0 0 25px}
        .article-content li{margin:8px 0}
        .article-content a{color:var(--cyan);border-bottom:1px solid rgba(85,244,199,.45)}
        .article-content a:hover{color:#9affdf;border-bottom-color:var(--cyan)}
        .article-content blockquote{margin:30px 0;padding:21px 25px;background:var(--panel);border-left:3px solid var(--orange);color:#e8e2ed;border-radius:0 12px 12px 0}
        .article-content img{width:100%;height:auto;border-radius:14px;border:1px solid var(--line);margin:28px 0 9px}
        .article-content table{width:100%;border-collapse:collapse;margin:28px 0;background:var(--panel);font-size:15px}
        .article-content th,.article-content td{padding:13px 15px;border:1px solid var(--line);text-align:left}
        .article-content th{color:var(--cyan);background:var(--panel-2)}
        .article-content hr{border:0;border-top:1px solid var(--line);margin:38px 0}
        .article-side{position:sticky;top:105px}
        .side-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:23px}
        .side-card + .side-card{margin-top:16px}
        .side-card h3{font-size:15px;margin:0 0 16px;color:#fff}
        .side-card p{color:var(--muted);font-size:13px;margin:0}
        .side-line{display:flex;gap:11px;align-items:flex-start;padding:11px 0;border-top:1px solid var(--line);font-size:13px;color:#d9d4e3}
        .side-line:first-of-type{border-top:0}
        .side-dot{width:7px;height:7px;border-radius:50%;background:var(--cyan);margin-top:9px;flex:none}
        .empty-state{background:var(--panel);border:1px dashed #5d586d;border-radius:var(--radius);padding:70px 25px;text-align:center}
        .empty-icon{width:54px;height:54px;margin:0 auto 18px;border:1px solid var(--cyan);color:var(--cyan);display:grid;place-items:center;border-radius:14px;font-weight:900;font-size:24px}
        .empty-state h2{font-size:27px;margin:0 0 10px;color:#fff}
        .empty-state p{color:var(--muted);margin:0 0 24px}
        .article-end{border-top:1px solid var(--line);margin-top:53px;padding-top:27px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap}
        .article-end span{color:var(--muted);font-size:13px}
        .related{background:var(--bg-soft);padding:70px 0;border-top:1px solid var(--line)}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:28px}
        .section-kicker{color:var(--cyan);font-size:12px;font-weight:900;letter-spacing:.14em;margin-bottom:10px}
        .section-head h2{font-size:32px;line-height:1.25;letter-spacing:-.04em;margin:0}
        .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
        .related-card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:23px;transition:.2s ease}
        .related-card:hover{border-color:var(--cyan);transform:translateY(-4px);box-shadow:var(--shadow)}
        .related-card .badge{display:inline-block;color:var(--orange);font-size:11px;border:1px solid rgba(255,173,103,.65);padding:3px 9px;border-radius:100px;margin-bottom:15px}
        .related-card h3{font-size:18px;line-height:1.45;margin:0 0 10px;color:#fff}
        .related-card p{color:var(--muted);font-size:13px;margin:0}
        footer{background:#111017;color:#fff;border-top:1px solid var(--line);padding:62px 0 24px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:38px;padding-bottom:45px}
        .footer-brand p{color:var(--muted);font-size:13px;max-width:270px;margin-top:17px}
        .footer-col{display:flex;flex-direction:column;gap:9px}
        .footer-col h4{font-size:14px;color:#fff;margin:0 0 8px}
        .footer-col a{color:var(--muted);font-size:13px;transition:.2s}
        .footer-col a:hover{color:var(--cyan);padding-left:3px}
        .copyright{border-top:1px solid var(--line);padding-top:20px;display:flex;justify-content:space-between;gap:20px;flex-wrap:wrap;color:#777383;font-size:12px}
        @media(max-width:1024px){
            .article-layout{grid-template-columns:minmax(0,1fr) 230px;gap:35px}
            .nav-links a{padding-left:8px;padding-right:8px}
            .nav-actions{display:none}
        }
        @media(max-width:768px){
            .container{width:min(calc(100% - 32px),var(--container))}
            .topbar{height:68px}
            .nav-links{display:none;position:absolute;top:68px;left:0;right:0;padding:15px 16px 20px;background:#111017;border-bottom:1px solid var(--cyan);flex-direction:column;align-items:stretch}
            .menu-open .nav-links{display:flex}
            .nav-links a{padding:12px 14px;border-bottom:1px solid var(--line)}
            .menu-toggle{display:block}
            .article-hero{padding:55px 0 52px}
            .article-hero:before{font-size:250px;right:-30px;top:40px}
            h1{font-size:clamp(32px,9vw,48px)}
            .article-lead{font-size:16px}
            .article-layout{display:block;padding:48px 0 66px}
            .article-content{font-size:16px}
            .article-side{position:static;margin-top:42px}
            .related-grid{grid-template-columns:1fr}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
        }
        @media(max-width:520px){
            .brand-text{font-size:15px}
            .breadcrumb{font-size:12px;overflow:hidden;white-space:nowrap}
            .article-meta{gap:9px 16px}
            .article-content h2{font-size:25px;margin-top:38px}
            .article-content h3{font-size:20px}
            .article-end{display:block}
            .article-end .btn{margin-top:17px;width:100%}
            .footer-grid{grid-template-columns:1fr}
            .copyright{display:block}
            .copyright span{display:block;margin-bottom:7px}
        }

/* roulang page: category1 */
:root{
            --bg:#0c0b12;
            --bg-soft:#14121d;
            --panel:#191722;
            --panel-2:#211d2d;
            --ink:#f2f0f7;
            --muted:#a7a2b5;
            --line:rgba(255,255,255,.11);
            --cyan:#55f4c7;
            --cyan-dark:#1fb995;
            --orange:#ffad67;
            --purple:#8b73ff;
            --paper:#f3f1e9;
            --dark:#17151f;
            --radius:18px;
            --shadow:0 18px 50px rgba(0,0,0,.28);
            --container:1180px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--bg);color:var(--ink);font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
        .topbar{position:sticky;top:0;z-index:30;background:rgba(12,11,18,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
        .nav{height:78px;display:flex;align-items:center;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;white-space:nowrap;font-weight:900;letter-spacing:-.04em}
        .brand-mark{width:40px;height:40px;display:grid;place-items:center;background:var(--cyan);color:var(--bg);font-weight:950;clip-path:polygon(0 0,100% 0,100% 76%,76% 100%,0 100%)}
        .brand-text{font-size:17px;line-height:1.15}
        .brand-text small{display:block;color:#9c9aaa;font-size:10px;letter-spacing:.14em;font-weight:700;margin-top:4px}
        .nav-links{display:flex;align-items:center;gap:5px;margin-left:auto}
        .nav-links a{color:#c3bfcb;padding:9px 13px;border-bottom:2px solid transparent;font-size:14px;transition:.2s ease}
        .nav-links a:hover,.nav-links a.active{color:var(--cyan);border-bottom-color:var(--cyan)}
        .nav-actions{margin-left:8px}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:1px solid transparent;border-radius:9px;padding:12px 20px;font-weight:800;transition:.2s ease}
        .btn-primary{background:var(--cyan);color:var(--bg)}
        .btn-primary:hover{background:#82f8d7;color:var(--bg);transform:translateY(-2px);box-shadow:0 10px 24px rgba(85,244,199,.2)}
        .btn-secondary{background:transparent;border-color:#5c5869;color:#f3eff8}
        .btn-secondary:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
        .menu-toggle{display:none;background:transparent;border:1px solid #5d596b;color:#fff;border-radius:8px;padding:8px 12px}
        :focus-visible{outline:3px solid var(--orange);outline-offset:3px}
        .page-hero{position:relative;overflow:hidden;background:var(--dark);border-bottom:1px solid var(--line)}
        .page-hero:before{content:"";position:absolute;inset:0;background-image:linear-gradient(rgba(255,255,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.055) 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(90deg,#000,transparent 78%);opacity:.7}
        .page-hero:after{content:"C7";position:absolute;right:7%;bottom:-105px;color:var(--cyan);font-weight:950;font-size:390px;line-height:1;opacity:.045}
        .hero-layout{position:relative;z-index:1;display:grid;grid-template-columns:1.12fr .88fr;gap:65px;align-items:center;padding:92px 0 88px}
        .crumbs{display:flex;gap:9px;align-items:center;color:#8f899d;font-size:13px;margin-bottom:25px}
        .crumbs a:hover{color:var(--cyan)}
        .crumbs span:last-child{color:var(--cyan)}
        .eyebrow,.section-kicker{color:var(--cyan);font-size:12px;font-weight:900;letter-spacing:.14em;margin-bottom:16px}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(38px,5vw,70px);line-height:1.12;letter-spacing:-.055em;margin-bottom:24px;max-width:700px}
        .hero-lead{color:#b9b4c4;font-size:18px;max-width:620px;margin-bottom:31px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
        .selection-map{min-height:340px;border:1px solid #4c4960;background:#171520;position:relative;padding:24px;overflow:hidden;box-shadow:var(--shadow)}
        .selection-map:before{content:"";position:absolute;width:260px;height:260px;border:1px solid rgba(85,244,199,.35);border-radius:50%;right:-55px;top:25px;box-shadow:0 0 0 28px rgba(85,244,199,.035),0 0 0 57px rgba(85,244,199,.025)}
        .map-title{position:relative;z-index:1;display:flex;justify-content:space-between;align-items:center;color:#d8d3e1;font-size:13px;border-bottom:1px solid var(--line);padding-bottom:15px}
        .map-title strong{font-size:19px;color:#fff}
        .map-core{position:relative;z-index:1;display:grid;place-items:center;height:235px}
        .core-ring{width:154px;height:154px;border:1px solid var(--cyan);border-radius:50%;display:grid;place-items:center;box-shadow:0 0 0 15px rgba(85,244,199,.06),0 0 45px rgba(85,244,199,.15)}
        .core-ring span{display:block;text-align:center;color:var(--cyan);font-size:28px;font-weight:950;line-height:1}
        .core-ring small{display:block;color:#aaa4b6;font-size:11px;font-weight:700;letter-spacing:.12em;margin-top:8px}
        .orbit-label{position:absolute;padding:7px 10px;background:#252132;border:1px solid var(--line);font-size:11px;color:#ded9e7}
        .orbit-one{top:67px;left:16px}.orbit-two{top:114px;right:10px}.orbit-three{bottom:20px;left:60px}
        .section{padding:92px 0}
        .section.alt{background:var(--bg-soft)}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:24px;margin-bottom:34px}
        .section-head h2{font-size:clamp(28px,4vw,45px);line-height:1.18;letter-spacing:-.045em;margin-bottom:0}
        .section-head p{max-width:470px;color:var(--muted);margin-bottom:3px}
        .text-link{color:var(--cyan);font-weight:800;white-space:nowrap}
        .text-link:hover{color:#a1ffe5}
        .feature-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:18px}
        .feature-card,.topic-card,.info-card{border:1px solid var(--line);border-radius:var(--radius);transition:.25s ease}
        .feature-card:hover,.topic-card:hover,.info-card:hover{border-color:rgba(85,244,199,.58);transform:translateY(-4px);box-shadow:var(--shadow)}
        .feature-card{min-height:405px;background:linear-gradient(135deg,#211d2e,#111017);padding:34px;display:flex;flex-direction:column;justify-content:end;position:relative;overflow:hidden}
        .feature-card:before{content:"C7 GAMES";position:absolute;right:28px;top:25px;color:var(--cyan);font-size:12px;font-weight:900;letter-spacing:.15em}
        .feature-card:after{content:"";position:absolute;width:330px;height:330px;right:-70px;top:55px;border:1px solid rgba(85,244,199,.24);transform:rotate(32deg);box-shadow:0 0 0 25px rgba(85,244,199,.025),0 0 0 50px rgba(139,115,255,.035)}
        .topic-stack{display:grid;gap:18px}
        .topic-card{padding:27px;min-height:193px;background:#272238;position:relative;overflow:hidden}
        .topic-card:nth-child(2){background:#242321}
        .topic-card:after{content:"";position:absolute;width:100px;height:100px;border:1px solid rgba(255,173,103,.35);right:24px;bottom:-35px;transform:rotate(45deg)}
        .badge{display:inline-flex;width:max-content;border:1px solid currentColor;border-radius:100px;padding:3px 10px;color:var(--cyan);font-size:11px;font-weight:900;margin-bottom:15px}
        .feature-card h3{font-size:31px;line-height:1.25;max-width:520px;position:relative;z-index:1}
        .topic-card h3{font-size:21px;line-height:1.35;position:relative;z-index:1}
        .feature-card p,.topic-card p{color:var(--muted);font-size:14px;margin:10px 0 0;position:relative;z-index:1}
        .category-strip{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .strip-item{padding:27px 25px;border-right:1px solid var(--line)}
        .strip-item:last-child{border-right:0}
        .strip-index{color:var(--orange);font-weight:900;font-size:13px}
        .strip-item h3{font-size:18px;margin:8px 0 5px}
        .strip-item p{color:var(--muted);font-size:13px;margin:0}
        .directory{display:grid;grid-template-columns:.75fr 1.25fr;gap:55px;align-items:start}
        .directory-intro h2{font-size:40px;line-height:1.2;letter-spacing:-.04em}
        .directory-intro p{color:var(--muted);max-width:390px}
        .directory-list{border-top:1px solid var(--line)}
        .directory-row{display:grid;grid-template-columns:54px 1fr auto;gap:18px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}
        .directory-row:hover .row-title{color:var(--cyan)}
        .row-no{color:var(--cyan);font-weight:900}
        .row-title{font-size:18px;font-weight:800;transition:.2s}
        .row-desc{font-size:13px;color:var(--muted);margin-top:3px}
        .row-arrow{color:var(--orange);font-size:20px}
        .experience{background:var(--paper);color:#202728}
        .experience-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
        .experience h2{font-size:clamp(30px,4vw,48px);line-height:1.2;letter-spacing:-.05em}
        .experience p{color:#697574;max-width:530px}
        .device-panel{background:#e3dfd3;border-radius:24px;padding:22px;position:relative;min-height:310px;overflow:hidden}
        .device-panel:before{content:"C7";position:absolute;font-size:230px;font-weight:950;line-height:1;color:var(--cyan-dark);opacity:.09;right:-5px;bottom:-45px}
        .device-head{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid #c8c6bb;padding-bottom:14px;position:relative;z-index:1}
        .device-head strong{font-size:20px}
        .device-head span{color:var(--cyan-dark);font-size:12px;font-weight:900}
        .device-lines{position:relative;z-index:1;display:grid;gap:12px;margin-top:25px}
        .device-line{height:45px;background:#f8f6ee;border-left:4px solid var(--cyan-dark);display:flex;align-items:center;justify-content:space-between;padding:0 14px;font-size:13px;font-weight:800}
        .device-line em{font-style:normal;color:#7b827b;font-size:11px}
        .faq-wrap{max-width:850px}
        .faq-item{border-top:1px solid var(--line)}
        .faq-item:last-child{border-bottom:1px solid var(--line)}
        .faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;background:none;border:0;color:var(--ink);text-align:left;padding:21px 0;font-weight:800;font-size:17px}
        .faq-question span:last-child{color:var(--cyan);font-size:25px;font-weight:400;transition:.2s}
        .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 45px 21px 0}
        .faq-item.open .faq-answer{display:block}
        .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
        .cta{padding:72px 0;background:var(--panel-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
        .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
        .cta h2{font-size:clamp(28px,4vw,43px);line-height:1.2;margin-bottom:10px}
        .cta p{color:var(--muted);margin:0}
        footer{background:#09080e;padding:63px 0 22px;color:#eee}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px;padding-bottom:48px}
        .footer-brand p{color:#8e8a99;max-width:290px;font-size:14px;margin-top:19px}
        .footer-col{display:flex;flex-direction:column;gap:9px}
        .footer-col h4{font-size:14px;color:var(--cyan);margin-bottom:8px}
        .footer-col a{font-size:13px;color:#96919f;transition:.2s}
        .footer-col a:hover{color:var(--cyan);padding-left:3px}
        .copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid var(--line);color:#716d7a;font-size:12px}
        @media(max-width:1024px){
            .hero-layout{gap:35px}.nav-links a{padding-left:8px;padding-right:8px}.feature-layout,.directory{gap:25px}
        }
        @media(max-width:768px){
            .container{width:min(calc(100% - 34px),var(--container))}
            .nav{height:70px}.nav-actions{display:none}.menu-toggle{display:block;margin-left:auto}
            .nav-links{display:none;position:absolute;left:17px;right:17px;top:70px;background:#14121d;border:1px solid var(--line);padding:10px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}
            .nav-links a{padding:12px 14px;border-bottom:1px solid var(--line)}
            .nav.menu-open .nav-links{display:flex}
            .nav.menu-open .nav-actions{display:block;position:absolute;top:300px;left:27px;right:27px}
            .nav.menu-open .nav-actions .btn{width:100%}
            .hero-layout,.feature-layout,.directory,.experience-grid{grid-template-columns:1fr}
            .hero-layout{padding:65px 0}.selection-map{min-height:290px}.page-hero:after{font-size:250px}
            .category-strip{grid-template-columns:1fr}.strip-item{border-right:0;border-bottom:1px solid var(--line)}.strip-item:last-child{border-bottom:0}
            .section{padding:68px 0}.section-head{display:block}.section-head p{margin-top:14px}
            .feature-card{min-height:350px}.directory-intro h2{font-size:32px}
            .experience-grid{gap:30px}.cta-inner{display:block}.cta .btn{margin-top:23px}
            .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}
            .copyright{display:block}.copyright span{display:block;margin-top:6px}
        }
        @media(max-width:520px){
            h1{font-size:40px}.hero-lead{font-size:16px}.hero-actions .btn{width:100%}
            .selection-map{padding:17px}.orbit-one{left:5px}.orbit-two{right:0}.orbit-three{left:32px}
            .directory-row{grid-template-columns:36px 1fr 15px;gap:10px}.row-title{font-size:16px}
            .footer-grid{grid-template-columns:1fr 1fr}.footer-brand{grid-column:1/-1}
        }

/* roulang page: category2 */
:root{
            --bg:#0c0b12;
            --bg-soft:#14121d;
            --panel:#191722;
            --panel-2:#211d2d;
            --ink:#f2f0f7;
            --muted:#a7a2b5;
            --line:rgba(255,255,255,.1);
            --cyan:#55f4c7;
            --cyan-dark:#1fb995;
            --orange:#ffad67;
            --purple:#8b73ff;
            --paper:#f6f4ef;
            --dark:#17151f;
            --radius:18px;
            --shadow:0 18px 50px rgba(0,0,0,.28);
            --container:1180px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--paper);color:#24222c;font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button{cursor:pointer}
        .container{width:min(calc(100% - 48px),var(--container));margin:0 auto}
        .topbar{background:var(--bg);color:#fff;position:sticky;top:0;z-index:30;border-bottom:1px solid rgba(85,244,199,.25)}
        .nav{height:78px;display:flex;align-items:center;justify-content:space-between;gap:28px}
        .brand{display:flex;align-items:center;gap:11px;font-weight:900;letter-spacing:-.04em;white-space:nowrap}
        .brand-mark{width:38px;height:38px;background:var(--cyan);color:var(--bg);display:grid;place-items:center;clip-path:polygon(0 0,100% 0,100% 76%,76% 100%,0 100%);font-weight:950}
        .brand-text{font-size:16px}
        .brand-text small{display:block;color:#aaa6b8;font-size:10px;letter-spacing:.12em;font-weight:700}
        .nav-links{display:flex;align-items:center;gap:6px}
        .nav-links a{color:#d9d5e2;padding:9px 13px;border:1px solid transparent;font-size:14px;transition:.2s ease}
        .nav-links a:hover,.nav-links a.active{color:var(--cyan);border-bottom-color:var(--cyan)}
        .nav-actions{display:flex;align-items:center}
        .btn{display:inline-flex;align-items:center;justify-content:center;gap:9px;border:0;border-radius:9px;padding:13px 20px;font-weight:800;transition:.2s ease}
        .btn-primary{background:var(--cyan);color:#101217}
        .btn-primary:hover{background:#83ffdb;color:#101217;transform:translateY(-2px);box-shadow:0 10px 24px rgba(85,244,199,.2)}
        .btn-secondary{background:transparent;border:1px solid #777184;color:#fff}
        .btn-secondary:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
        .menu-toggle{display:none;background:transparent;border:1px solid #5b5667;color:#fff;padding:9px 12px;border-radius:7px}
        a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
        .page-hero{background:var(--bg);color:#fff;position:relative;overflow:hidden}
        .page-hero:before{content:"NEWS";position:absolute;right:-22px;bottom:-85px;color:var(--cyan);font-weight:950;font-size:clamp(130px,22vw,300px);line-height:1;opacity:.055;letter-spacing:-.08em}
        .page-hero:after{content:"";position:absolute;inset:0;opacity:.1;background-image:linear-gradient(#fff 1px,transparent 1px),linear-gradient(90deg,#fff 1px,transparent 1px);background-size:42px 42px;mask-image:linear-gradient(90deg,#000,transparent 80%)}
        .hero-inner{position:relative;z-index:1;padding:92px 0 88px;display:grid;grid-template-columns:1.15fr .85fr;gap:60px;align-items:end}
        .eyebrow,.section-kicker{color:var(--cyan);font-size:12px;font-weight:900;letter-spacing:.14em;margin-bottom:17px}
        h1,h2,h3,h4,p{margin-top:0}
        h1{font-size:clamp(42px,6vw,76px);line-height:1.08;letter-spacing:-.065em;margin-bottom:24px;max-width:760px}
        .hero-copy{font-size:18px;color:#bdb8c9;max-width:650px;margin-bottom:30px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
        .hero-panel{border:1px solid rgba(85,244,199,.35);background:rgba(31,28,45,.85);padding:25px;border-radius:var(--radius);position:relative}
        .hero-panel:before{content:"实时更新";position:absolute;right:18px;top:18px;color:var(--orange);font-size:12px;font-weight:800}
        .panel-top{display:flex;align-items:center;gap:13px;padding-bottom:22px;border-bottom:1px solid var(--line)}
        .pulse{width:12px;height:12px;border-radius:50%;background:var(--cyan);box-shadow:0 0 0 7px rgba(85,244,199,.12)}
        .panel-top strong{font-size:18px}
        .signal-list{list-style:none;padding:0;margin:22px 0 0}
        .signal-list li{display:flex;justify-content:space-between;gap:18px;padding:13px 0;border-bottom:1px solid var(--line);font-size:14px}
        .signal-list li:last-child{border-bottom:0}
        .signal-list span{color:var(--muted)}
        .signal-list b{color:#fff;font-weight:700;text-align:right}
        .section{padding:94px 0}
        .section-dark{background:var(--bg-soft);color:#fff}
        .section-head{display:flex;align-items:end;justify-content:space-between;gap:25px;margin-bottom:35px}
        .section-head h2{font-size:clamp(29px,4vw,48px);line-height:1.15;letter-spacing:-.05em;margin-bottom:0}
        .section-head p{max-width:470px;color:var(--muted);margin-bottom:0}
        .text-link{color:var(--cyan-dark);font-weight:900;white-space:nowrap}
        .filter-row{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:30px}
        .filter{border:1px solid #d3d0c8;background:#fffdf8;color:#66616d;border-radius:100px;padding:8px 16px;font-size:13px;transition:.2s}
        .filter:hover,.filter.active{background:var(--dark);border-color:var(--dark);color:var(--cyan)}
        .news-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:22px}
        .lead-news{background:var(--dark);color:#fff;border-radius:var(--radius);min-height:430px;padding:31px;display:flex;align-items:end;position:relative;overflow:hidden}
        .lead-news:before{content:"C7";position:absolute;right:24px;top:18px;color:var(--cyan);font-size:128px;font-weight:950;opacity:.14;line-height:1}
        .lead-news:after{content:"";position:absolute;inset:0;background:linear-gradient(135deg,transparent 25%,rgba(139,115,255,.25));pointer-events:none}
        .lead-content{position:relative;z-index:1;max-width:570px}
        .badge{display:inline-flex;width:max-content;border:1px solid currentColor;border-radius:100px;padding:3px 10px;font-size:11px;font-weight:900;margin-bottom:16px}
        .lead-news h3{font-size:clamp(27px,3vw,40px);line-height:1.2;margin-bottom:13px}
        .lead-news p{color:#c5c0d0;font-size:15px;margin-bottom:20px}
        .news-stack{display:grid;gap:12px}
        .news-item{background:#fff;border:1px solid #e0ddd5;border-left:4px solid var(--cyan-dark);border-radius:13px;padding:20px 22px;transition:.2s}
        .news-item:hover{transform:translateX(4px);border-color:var(--cyan-dark);box-shadow:var(--shadow)}
        .news-meta{display:flex;gap:12px;align-items:center;color:#8a8491;font-size:12px;margin-bottom:7px}
        .news-meta b{color:var(--cyan-dark)}
        .news-item h3{font-size:18px;line-height:1.35;margin-bottom:6px}
        .news-item p{font-size:13px;color:#77727d;margin:0}
        .topic-band{background:#eae7df;padding:25px 0}
        .topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0}
        .topic-cell{padding:13px 25px;border-right:1px solid #ccc8be}
        .topic-cell:first-child{padding-left:0}
        .topic-cell:last-child{border-right:0}
        .topic-cell strong{display:block;font-size:21px;color:var(--dark)}
        .topic-cell span{display:block;color:#77727d;font-size:13px;margin-top:3px}
        .timeline{position:relative;max-width:900px;margin:0 auto}
        .timeline:before{content:"";position:absolute;left:106px;top:0;bottom:0;width:1px;background:rgba(85,244,199,.3)}
        .timeline-item{display:grid;grid-template-columns:88px 1fr;gap:38px;padding:0 0 35px}
        .timeline-date{color:var(--cyan);font-size:13px;font-weight:900;padding-top:22px;text-align:right}
        .timeline-card{border:1px solid var(--line);background:var(--panel);border-radius:14px;padding:21px 24px;position:relative}
        .timeline-card:before{content:"";position:absolute;left:-45px;top:27px;width:13px;height:13px;border:3px solid var(--cyan);background:var(--bg-soft);border-radius:50%}
        .timeline-card h3{font-size:20px;margin-bottom:7px}
        .timeline-card p{color:var(--muted);font-size:14px;margin-bottom:0}
        .guide-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
        .guide-card{background:#fff;border:1px solid #ddd9d0;border-radius:var(--radius);padding:28px}
        .guide-card h3{font-size:22px;margin-bottom:10px}
        .guide-card p{color:#77727d;font-size:14px;margin-bottom:17px}
        .guide-card ul{padding-left:20px;color:#55515c;margin:0}
        .guide-card li{padding:4px 0}
        .faq-list{max-width:900px;margin:0 auto}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;background:transparent;color:#fff;border:0;text-align:left;padding:22px 0;font-weight:800;font-size:17px}
        .faq-question span:last-child{color:var(--cyan);font-size:24px;line-height:1;transition:.2s}
        .faq-answer{max-height:0;overflow:hidden;color:var(--muted);font-size:14px;transition:max-height .3s ease}
        .faq-answer p{padding:0 40px 22px 0;margin:0}
        .faq-item.open .faq-answer{max-height:150px}
        .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
        .cta{background:var(--cyan);color:var(--dark);padding:52px 0}
        .cta-inner{display:flex;align-items:center;justify-content:space-between;gap:30px}
        .cta h2{font-size:clamp(28px,4vw,45px);line-height:1.15;margin-bottom:10px;letter-spacing:-.05em}
        .cta p{margin:0;max-width:650px;color:#245448}
        .cta .btn{background:var(--dark);color:#fff}
        .cta .btn:hover{background:#332d40;transform:translateY(-2px)}
        footer{background:var(--dark);color:#fff;padding:62px 0 25px}
        .footer-grid{display:grid;grid-template-columns:1.6fr repeat(3,1fr);gap:40px;padding-bottom:48px}
        .footer-brand p{color:#aaa6b4;font-size:13px;max-width:280px;margin-top:18px}
        .footer-col h4{font-size:14px;color:var(--cyan);margin-bottom:15px}
        .footer-col a{display:block;color:#aaa6b4;font-size:13px;padding:4px 0;transition:.2s}
        .footer-col a:hover{color:#fff;transform:translateX(3px)}
        .copyright{border-top:1px solid var(--line);padding-top:19px;display:flex;justify-content:space-between;gap:20px;color:#817c8a;font-size:12px}
        @media(max-width:1024px){
            .nav-links{gap:0}
            .nav-links a{padding-left:8px;padding-right:8px}
            .hero-inner{gap:35px}
            .news-layout{grid-template-columns:1fr}
        }
        @media(max-width:768px){
            .container{width:min(calc(100% - 32px),var(--container))}
            .nav{height:70px}
            .nav-actions{margin-left:auto}
            .nav-actions .btn{padding:10px 13px;font-size:12px}
            .menu-toggle{display:block}
            .nav-links{display:none;position:absolute;top:70px;left:0;right:0;padding:13px 16px 18px;background:var(--bg);border-top:1px solid var(--line);flex-direction:column;align-items:stretch}
            .menu-open .nav-links{display:flex}
            .nav-links a{padding:12px 10px}
            .hero-inner{grid-template-columns:1fr;padding:68px 0 65px}
            .hero-panel{max-width:620px}
            .section{padding:70px 0}
            .section-head{display:block}
            .section-head p{margin-top:14px}
            .section-head .text-link{display:inline-block;margin-top:15px}
            .topic-grid{grid-template-columns:1fr}
            .topic-cell,.topic-cell:first-child{padding:14px 0;border-right:0;border-bottom:1px solid #ccc8be}
            .topic-cell:last-child{border-bottom:0}
            .timeline:before{left:8px}
            .timeline-item{grid-template-columns:1fr;gap:5px;padding-left:30px}
            .timeline-date{text-align:left;padding-top:0}
            .timeline-card:before{left:-30px;top:23px}
            .guide-grid{grid-template-columns:1fr}
            .cta-inner{display:block}
            .cta .btn{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
            .footer-brand{grid-column:1/-1}
            .copyright{display:block}
            .copyright span{display:block;margin-top:7px}
        }
        @media(max-width:520px){
            h1{font-size:42px}
            .hero-copy{font-size:16px}
            .hero-actions .btn{width:100%}
            .lead-news{min-height:390px;padding:23px}
            .lead-news h3{font-size:28px}
            .footer-grid{grid-template-columns:1fr}
            .footer-brand{grid-column:auto}
            .nav-actions{display:none}
        }

/* roulang page: category3 */
:root{
        --bg:#0c0b12;--bg-soft:#14121d;--panel:#191722;--panel-2:#211d2d;
        --ink:#f2f0f7;--muted:#a7a2b5;--line:rgba(255,255,255,.11);
        --cyan:#55f4c7;--cyan-dark:#1fb995;--orange:#ffad67;--purple:#8b73ff;
        --radius:18px;--shadow:0 18px 50px rgba(0,0,0,.28);--container:1180px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--bg);color:var(--ink);font-family:ui-sans-serif,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    button{cursor:pointer}
    .container{width:min(calc(100% - 48px),var(--container));margin:auto}
    .topbar{position:sticky;top:0;z-index:20;background:rgba(12,11,18,.96);border-bottom:1px solid var(--line);backdrop-filter:blur(12px)}
    .nav{height:78px;display:flex;align-items:center;gap:30px}
    .brand{display:flex;align-items:center;gap:11px;min-width:190px}
    .brand-mark{width:39px;height:39px;display:grid;place-items:center;background:var(--cyan);color:var(--bg);font-weight:950;clip-path:polygon(0 0,100% 0,100% 75%,75% 100%,0 100%)}
    .brand-text{font-weight:900;letter-spacing:-.04em}
    .brand-text small{display:block;color:var(--muted);font-size:10px;letter-spacing:.14em}
    .nav-links{display:flex;align-items:center;gap:5px;flex:1}
    .nav-links a{padding:9px 13px;color:#cbc7d5;font-size:14px;border-bottom:2px solid transparent;transition:.2s}
    .nav-links a:hover,.nav-links a.active{color:var(--cyan);border-bottom-color:var(--cyan)}
    .nav-actions{margin-left:auto}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;border-radius:9px;padding:12px 20px;font-weight:850;transition:.2s}
    .btn-primary{background:var(--cyan);color:var(--bg)}
    .btn-primary:hover{background:#83ffda;transform:translateY(-2px);box-shadow:0 10px 25px rgba(85,244,199,.2)}
    .btn-secondary{border-color:#615b71;color:var(--ink);background:transparent}
    .btn-secondary:hover{border-color:var(--cyan);color:var(--cyan);transform:translateY(-2px)}
    .menu-toggle{display:none;background:transparent;color:#fff;border:1px solid #565263;border-radius:8px;padding:8px 12px}
    .page-hero{position:relative;overflow:hidden;padding:96px 0 88px;background:var(--bg-soft);border-bottom:1px solid var(--line)}
    .page-hero:before{content:"APP";position:absolute;right:4%;top:-50px;color:var(--cyan);opacity:.055;font-size:250px;font-weight:950;letter-spacing:-.1em}
    .hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.08fr .92fr;gap:70px;align-items:center}
    .eyebrow,.section-kicker{color:var(--cyan);font-size:12px;font-weight:900;letter-spacing:.14em;margin-bottom:15px}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,5.5vw,70px);line-height:1.12;letter-spacing:-.065em;margin-bottom:22px}
    .hero-copy{max-width:620px;color:var(--muted);font-size:18px;margin-bottom:30px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px}
    .mobile-visual{min-height:330px;border:1px solid #4f485e;border-radius:26px;background:linear-gradient(145deg,#201d30,#111019);padding:23px;position:relative;box-shadow:var(--shadow);transform:rotate(2deg)}
    .mobile-screen{height:280px;border:7px solid #08080c;border-radius:21px;background:#161c21;padding:20px;position:relative;overflow:hidden}
    .mobile-screen:before{content:"C7 GAMES";display:block;color:var(--cyan);font-size:19px;font-weight:950;letter-spacing:.08em;margin:12px 0 30px}
    .screen-line{height:11px;background:#364a4b;border-radius:20px;margin:13px 0;width:78%}
    .screen-line.short{width:48%;background:var(--orange)}
    .screen-tile{height:80px;margin-top:25px;border-radius:10px;background:linear-gradient(135deg,#344f4d,#201c31);border:1px solid #617873}
    .visual-label{position:absolute;right:-16px;bottom:30px;background:var(--orange);color:var(--bg);padding:10px 16px;font-weight:900;transform:rotate(-5deg)}
    .section{padding:92px 0}
    .section.alt{background:var(--bg-soft)}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
    .section-head h2{font-size:clamp(28px,4vw,45px);line-height:1.2;letter-spacing:-.05em;margin:0}
    .section-head p{max-width:500px;color:var(--muted);margin:0}
    .path-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:16px}
    .path-card,.feature-panel,.step,.faq-item,.info-strip{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius)}
    .path-card{padding:30px;min-height:190px;transition:.2s}
    .path-card:hover,.step:hover{border-color:var(--cyan);transform:translateY(-3px)}
    .path-card.large{grid-row:span 2;background:linear-gradient(145deg,#1d2d2b,var(--panel))}
    .number{display:inline-grid;place-items:center;width:34px;height:34px;border-radius:50%;background:var(--cyan);color:var(--bg);font-weight:900;margin-bottom:22px}
    .path-card h3{font-size:22px;margin-bottom:9px}
    .path-card p,.step p{color:var(--muted);font-size:14px;margin-bottom:0}
    .badge{display:inline-flex;border:1px solid var(--cyan);color:var(--cyan);border-radius:99px;padding:3px 10px;font-size:11px;font-weight:900;margin-bottom:16px}
    .feature-panel{padding:34px;display:grid;grid-template-columns:1fr .9fr;gap:30px;align-items:center}
    .feature-panel h2{font-size:32px;line-height:1.25;letter-spacing:-.04em}
    .feature-panel p{color:var(--muted)}
    .feature-art{height:230px;border-radius:14px;background:linear-gradient(135deg,#243e3b,#2b2540);border:1px solid #637a74;display:flex;align-items:center;justify-content:center;position:relative;overflow:hidden}
    .feature-art strong{font-size:62px;color:var(--cyan);opacity:.8;letter-spacing:-.08em}
    .feature-art span{position:absolute;bottom:16px;left:16px;background:var(--orange);color:var(--bg);padding:4px 10px;border-radius:5px;font-size:12px;font-weight:900}
    .steps{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .step{padding:27px;min-height:180px}
    .step h3{font-size:19px;margin-bottom:8px}
    .download{background:#181524;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .download-grid{display:grid;grid-template-columns:1fr 1fr;gap:70px;align-items:center}
    .download h2{font-size:clamp(30px,4vw,52px);line-height:1.18;letter-spacing:-.06em}
    .download p{color:var(--muted);max-width:540px}
    .download-list{list-style:none;padding:0;margin:26px 0;display:grid;gap:10px}
    .download-list li:before{content:"✓";color:var(--cyan);font-weight:900;margin-right:10px}
    .download-box{border-left:3px solid var(--orange);padding:25px 28px;background:var(--panel)}
    .download-box h3{margin-bottom:10px}
    .download-box p{font-size:14px;margin-bottom:18px}
    .qr{width:92px;height:92px;background:repeating-linear-gradient(45deg,#fff 0 6px,#15131d 6px 11px);border:7px solid #fff;margin-bottom:18px}
    .faq-list{max-width:850px;margin:auto;display:grid;gap:10px}
    .faq-item{overflow:hidden}
    .faq-q{width:100%;padding:20px 23px;color:var(--ink);background:transparent;border:0;text-align:left;display:flex;justify-content:space-between;font-weight:800}
    .faq-q span{color:var(--cyan);font-size:22px;line-height:1}
    .faq-a{display:none;padding:0 23px 20px;color:var(--muted);font-size:14px}
    .faq-item.open .faq-a{display:block}
    .faq-item.open .faq-q span{transform:rotate(45deg)}
    .cta{padding:70px 0;background:var(--cyan);color:var(--bg)}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta h2{font-size:clamp(27px,4vw,43px);letter-spacing:-.05em;margin:0}
    .cta p{margin:8px 0 0;max-width:600px}
    .cta .btn{background:var(--bg);color:#fff}
    footer{background:#08080d;padding:65px 0 25px;color:#fff}
    .footer-grid{display:grid;grid-template-columns:1.5fr repeat(3,1fr);gap:40px;padding-bottom:48px}
    .footer-brand p{color:var(--muted);font-size:14px;max-width:270px;margin-top:20px}
    .footer-col{display:grid;align-content:start;gap:9px}
    .footer-col h4{font-size:14px;color:var(--cyan);margin-bottom:7px}
    .footer-col a{color:var(--muted);font-size:13px;transition:.2s}
    .footer-col a:hover{color:var(--cyan)}
    .copyright{border-top:1px solid var(--line);padding-top:20px;display:flex;justify-content:space-between;gap:15px;color:#777384;font-size:12px}
    :focus-visible{outline:3px solid var(--orange);outline-offset:3px}
    @media(max-width:900px){
        .nav-links{gap:0}.nav-links a{padding:8px 8px;font-size:13px}
        .hero-inner,.download-grid{grid-template-columns:1fr;gap:38px}
        .mobile-visual{max-width:540px;width:100%;margin:auto}
        .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
        .footer-grid .footer-col:last-child{display:none}
    }
    @media(max-width:680px){
        .container{width:min(calc(100% - 32px),var(--container))}
        .nav{height:68px}.brand{min-width:0}.nav-actions{display:none}.menu-toggle{display:block;margin-left:auto}
        .nav-links{display:none;position:absolute;left:16px;right:16px;top:76px;padding:12px;background:var(--panel);border:1px solid var(--line);border-radius:12px;flex-direction:column;align-items:stretch}
        .menu-open .nav-links{display:flex}.nav-links a{padding:12px 14px}
        .page-hero{padding:68px 0 60px}h1{font-size:42px}.hero-copy{font-size:16px}
        .section{padding:65px 0}.section-head{display:block}.section-head p{margin-top:15px}
        .path-grid,.feature-panel,.steps{grid-template-columns:1fr}.path-card.large{grid-row:auto}
        .feature-art{order:-1;height:190px}.download-grid{gap:30px}
        .cta-inner{display:block}.cta .btn{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}
        .footer-brand{grid-column:1/-1}.copyright{display:block}.copyright span{display:block;margin-top:7px}
    }

/* roulang: framework shim */
/* 覆盖 Bootstrap 等对 a/btn 的全局默认，避免导航出现下划线/蓝链 */
.site-header a,.site-header a:hover,.navbar a,.navbar a:hover,.nav-links a,.nav-links a:hover,header nav a,header nav a:hover{text-decoration:none}
.site-header .btn,.navbar .btn,.nav-cta{text-decoration:none}