/* roulang page: index */
:root{
            --bg:#070d1d;
            --bg-deep:#050916;
            --panel:#101a34;
            --panel-soft:rgba(17,29,58,.74);
            --panel-strong:rgba(21,35,72,.94);
            --primary:#7587ff;
            --primary-bright:#9ba8ff;
            --cyan:#5ee7e1;
            --violet:#a489ff;
            --text:#f4f7ff;
            --muted:#aab7d8;
            --subtle:#7381a5;
            --line:rgba(156,177,255,.18);
            --line-strong:rgba(143,161,255,.42);
            --success:#74e0b1;
            --warning:#f2c875;
            --danger:#f18da9;
            --shadow:0 22px 70px rgba(0,0,0,.34);
            --glow:0 0 0 1px rgba(126,145,255,.2),0 0 34px rgba(98,112,255,.18);
            --radius-xl:30px;
            --radius-lg:22px;
            --radius-md:16px;
            --radius-sm:11px;
            --ease:260ms cubic-bezier(.2,.75,.25,1);
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            color:var(--text);
            background:
                radial-gradient(circle at 76% 8%,rgba(83,105,255,.17),transparent 25rem),
                radial-gradient(circle at 8% 32%,rgba(40,196,205,.07),transparent 22rem),
                linear-gradient(180deg,var(--bg) 0%,var(--bg-deep) 100%);
            font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
            font-size:16px;
            line-height:1.75;
            overflow-x:hidden;
        }
        body:before{
            content:"";
            position:fixed;
            inset:0;
            pointer-events:none;
            opacity:.22;
            background-image:
                linear-gradient(rgba(148,168,255,.08) 1px,transparent 1px),
                linear-gradient(90deg,rgba(148,168,255,.08) 1px,transparent 1px);
            background-size:72px 72px;
            mask-image:linear-gradient(to bottom,black,transparent 82%);
        }
        a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease),box-shadow var(--ease)}
        img{display:block;max-width:100%;height:auto}
        button,input,textarea{font:inherit}
        button{cursor:pointer}
        :focus-visible{outline:3px solid rgba(94,231,225,.72);outline-offset:4px}
        .container{width:min(1180px,calc(100% - 48px));margin:0 auto}
        .section{padding:104px 0;position:relative}
        .section-head{max-width:700px;margin-bottom:42px}
        .eyebrow{
            display:inline-flex;align-items:center;gap:9px;
            color:var(--cyan);font-size:12px;font-weight:700;letter-spacing:.16em;
            text-transform:uppercase;margin-bottom:17px;
        }
        .eyebrow:before{content:"";width:24px;height:1px;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
        h1,h2,h3,p{margin-top:0}
        h1,h2,h3{color:var(--text);line-height:1.24;letter-spacing:-.035em}
        h1{font-size:clamp(38px,5.6vw,74px);max-width:760px;margin-bottom:24px}
        h2{font-size:clamp(30px,4vw,48px);margin-bottom:16px}
        h3{font-size:21px;margin-bottom:10px}
        .section-head p,.lead{color:var(--muted);font-size:17px;max-width:680px}
        .topbar{
            position:sticky;top:14px;z-index:20;
            padding-top:14px;
        }
        .nav-shell{
            min-height:76px;padding:0 17px 0 23px;
            display:flex;align-items:center;gap:20px;
            background:rgba(9,16,37,.78);border:1px solid var(--line);
            border-radius:22px;backdrop-filter:blur(18px);
            box-shadow:0 14px 45px rgba(0,0,0,.22);
        }
        .brand{display:flex;align-items:center;gap:12px;white-space:nowrap;font-weight:800;letter-spacing:-.04em}
        .brand-mark{
            width:35px;height:35px;border-radius:11px;position:relative;
            background:linear-gradient(135deg,var(--cyan),var(--primary) 52%,var(--violet));
            box-shadow:0 0 22px rgba(110,143,255,.4);
        }
        .brand-mark:after,.brand-mark:before{content:"";position:absolute;border:1px solid rgba(255,255,255,.65);border-radius:50%}
        .brand-mark:before{inset:9px 7px 9px 13px;border-left-color:transparent}
        .brand-mark:after{inset:6px 5px 6px 10px;border-left-color:transparent;opacity:.55}
        .brand-name{font-size:16px}
        .nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
        .nav-links a{
            position:relative;padding:10px 14px;color:var(--muted);font-size:14px;border-radius:10px
        }
        .nav-links a:hover,.nav-links a.active{color:var(--text);background:rgba(122,140,255,.1)}
        .nav-links a.active:after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
        .nav-status{display:flex;align-items:center;gap:7px;color:var(--subtle);font-size:12px;white-space:nowrap}
        .status-dot{width:7px;height:7px;background:var(--success);border-radius:50%;box-shadow:0 0 12px var(--success)}
        .button{
            display:inline-flex;align-items:center;justify-content:center;gap:9px;
            min-height:48px;padding:0 20px;border-radius:12px;border:1px solid transparent;
            color:#071127;font-weight:750;font-size:14px;line-height:1;
            background:linear-gradient(135deg,#8f9dff,#687cff);
            box-shadow:0 8px 24px rgba(101,119,255,.25);
        }
        .button:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 30px rgba(106,126,255,.42),0 0 0 1px rgba(144,158,255,.55)}
        .button.secondary{color:var(--text);background:rgba(122,141,255,.08);border-color:var(--line-strong);box-shadow:none}
        .button.secondary:hover{background:rgba(122,141,255,.18)}
        .button.small{min-height:40px;padding:0 15px;font-size:13px}
        .menu-toggle{display:none;color:var(--text);background:transparent;border:1px solid var(--line);border-radius:10px;padding:9px 12px}
        .hero{padding:112px 0 72px;position:relative}
        .hero-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(390px,.95fr);gap:76px;align-items:center}
        .hero-copy .lead{font-size:18px;line-height:1.9;margin-bottom:32px}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:34px}
        .hero-points{display:flex;gap:25px;flex-wrap:wrap}
        .hero-point{padding-left:14px;border-left:1px solid var(--line-strong)}
        .hero-point strong{display:block;font-size:18px;color:var(--text)}
        .hero-point span{display:block;color:var(--subtle);font-size:12px}
        .hero-visual{position:relative;min-height:440px}
        .orbit{position:absolute;inset:24px 5px 14px 22px;border:1px solid rgba(125,146,255,.2);border-radius:44% 56% 52% 48%;transform:rotate(-8deg)}
        .orbit:before,.orbit:after{content:"";position:absolute;border:1px solid rgba(94,231,225,.18);border-radius:50%}
        .orbit:before{inset:42px 72px 36px 45px}
        .orbit:after{inset:102px 26px 88px 112px;transform:rotate(22deg)}
        .hero-panel{
            position:absolute;inset:58px 22px 38px 58px;padding:26px;
            background:linear-gradient(145deg,rgba(27,44,88,.88),rgba(12,21,48,.88));
            border:1px solid var(--line-strong);border-radius:var(--radius-xl);
            box-shadow:var(--shadow),var(--glow);backdrop-filter:blur(16px);
        }
        .panel-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:27px}
        .panel-label{font-size:12px;color:var(--muted);letter-spacing:.08em}
        .badge{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border-radius:99px;color:var(--cyan);font-size:11px;background:rgba(94,231,225,.09);border:1px solid rgba(94,231,225,.26);white-space:nowrap}
        .channel-map{position:relative;height:245px;margin:4px 0 20px}
        .channel-map:before{content:"";position:absolute;left:18%;top:51%;width:70%;height:1px;background:linear-gradient(90deg,transparent,var(--primary),var(--cyan),transparent);transform:rotate(-17deg);box-shadow:0 0 10px rgba(116,141,255,.7)}
        .channel-map:after{content:"";position:absolute;left:31%;top:40%;width:44%;height:115px;border:1px dashed rgba(147,164,255,.36);border-left:0;border-bottom:0;border-radius:0 100% 0 0;transform:rotate(14deg)}
        .node{position:absolute;width:56px;height:56px;border-radius:50%;display:grid;place-items:center;background:#142653;border:1px solid var(--line-strong);box-shadow:0 0 0 7px rgba(113,135,255,.06),0 0 24px rgba(93,120,255,.24)}
        .node:after{content:"";width:11px;height:11px;border-radius:50%;background:var(--primary-bright);box-shadow:0 0 15px var(--primary)}
        .node.a{left:4%;top:43%}.node.b{left:35%;top:18%}.node.c{right:7%;top:34%}.node.d{left:55%;bottom:4%}
        .node-copy{position:absolute;font-size:11px;color:var(--muted);white-space:nowrap}
        .node-copy.a{left:1%;top:70%}.node-copy.b{left:32%;top:5%}.node-copy.c{right:0;top:61%}.node-copy.d{left:50%;bottom:-13%}
        .panel-foot{display:flex;align-items:center;justify-content:space-between;border-top:1px solid var(--line);padding-top:16px;color:var(--subtle);font-size:12px}
        .status-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);padding:17px 0}
        .status-band-inner{display:flex;align-items:center;gap:18px;overflow:hidden}
        .status-band strong{font-size:13px;white-space:nowrap}.route{display:flex;gap:10px;align-items:center;color:var(--subtle);font-size:12px;white-space:nowrap}
        .route i{width:5px;height:5px;border-radius:50%;background:var(--primary);display:block}
        .glass{background:var(--panel-soft);border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:var(--shadow);backdrop-filter:blur(15px)}
        .feature-layout{display:grid;grid-template-columns:210px 1fr;gap:25px}
        .side-index{padding:18px;height:max-content;position:sticky;top:108px}
        .side-index small{color:var(--subtle);display:block;margin-bottom:15px}
        .side-index a{display:flex;justify-content:space-between;padding:12px 10px;color:var(--muted);border-bottom:1px solid var(--line);font-size:13px}
        .side-index a:hover,.side-index a.current{color:var(--cyan)}
        .side-index b{font-weight:400;color:var(--subtle)}
        .feature-main{display:grid;grid-template-columns:1.12fr .88fr;gap:18px}
        .feature-card{padding:30px;min-height:250px;position:relative;overflow:hidden}
        .feature-card.primary-card{grid-row:span 2;min-height:520px;background:linear-gradient(145deg,rgba(29,46,96,.86),rgba(14,24,53,.77))}
        .feature-card:hover,.case-panel:hover,.price-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:var(--shadow),0 0 30px rgba(92,113,255,.13)}
        .feature-card p{color:var(--muted);font-size:14px;max-width:360px}
        .feature-card .card-index{color:var(--primary-bright);font-size:12px;letter-spacing:.1em;margin-bottom:65px}
        .feature-card.primary-card .card-index{margin-bottom:176px}
        .card-arrow{position:absolute;right:25px;bottom:23px;color:var(--cyan);font-size:22px}
        .tag-row{display:flex;gap:8px;flex-wrap:wrap;margin-top:20px}.tag{font-size:11px;color:var(--muted);border:1px solid var(--line);border-radius:99px;padding:4px 9px}
        .path-section{background:rgba(10,18,40,.42);border-top:1px solid rgba(145,162,255,.08);border-bottom:1px solid rgba(145,162,255,.08)}
        .pathline{position:relative;display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:55px}
        .pathline:before{content:"";position:absolute;top:25px;left:9%;right:9%;height:1px;background:linear-gradient(90deg,var(--primary),var(--cyan),var(--violet));opacity:.5}
        .path-step{position:relative;padding-top:67px}.path-number{position:absolute;top:0;left:0;width:51px;height:51px;display:grid;place-items:center;border-radius:50%;background:var(--bg);border:1px solid var(--primary);color:var(--primary-bright);font-weight:800;box-shadow:0 0 0 8px rgba(118,135,255,.08)}
        .path-step p{color:var(--muted);font-size:14px}.path-step a{font-size:13px;color:var(--cyan)}
        .case-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:22px}
        .case-panel{padding:34px;transition:all var(--ease)}
        .case-main{min-height:305px;background:linear-gradient(140deg,rgba(25,45,91,.82),rgba(10,20,45,.78))}
        .case-meta{display:flex;justify-content:space-between;gap:15px;color:var(--subtle);font-size:12px;margin-bottom:46px}
        .case-main p,.case-side p{color:var(--muted);font-size:14px}
        .case-side{display:flex;flex-direction:column;justify-content:space-between;min-height:305px}
        .result-line{border-top:1px solid var(--line);padding-top:15px;margin-top:23px;color:var(--success);font-size:14px}
        .price-wrap{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;align-items:stretch}
        .price-card{padding:28px;display:flex;flex-direction:column;transition:all var(--ease);min-height:330px}
        .price-card.featured{border-color:rgba(118,139,255,.7);background:linear-gradient(145deg,rgba(36,48,104,.84),rgba(15,25,55,.86));box-shadow:var(--shadow),0 0 35px rgba(99,119,255,.18)}
        .price-title{display:flex;justify-content:space-between;align-items:center;margin-bottom:11px}
        .price-card p{color:var(--muted);font-size:14px;min-height:54px}
        .price-list{list-style:none;margin:17px 0 25px;padding:0;color:var(--muted);font-size:13px;line-height:2.1}
        .price-list li:before{content:"✓";color:var(--cyan);margin-right:9px}.price-card .button{margin-top:auto}
        .faq-grid{display:grid;grid-template-columns:.75fr 1.25fr;gap:70px;align-items:start}
        .faq-list{border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;padding:20px 4px;color:var(--text);background:none;border:0;font-weight:650}
        .faq-question span:last-child{color:var(--cyan);font-size:22px;transition:transform var(--ease)}
        .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 35px 20px 4px}.faq-item.open .faq-answer{display:block}.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
        .cta-box{padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:30px;background:linear-gradient(105deg,rgba(31,48,97,.86),rgba(13,28,59,.76));border-color:rgba(117,142,255,.4)}
        .cta-box h2{font-size:32px;margin-bottom:9px}.cta-box p{color:var(--muted);margin-bottom:0;font-size:14px}
        .feedback{margin-top:28px;padding:26px}.feedback h3{font-size:18px}.form-grid{display:grid;grid-template-columns:1fr 1fr auto;gap:11px}
        label{display:block;color:var(--muted);font-size:12px;margin-bottom:6px}input,textarea{width:100%;border:1px solid var(--line);border-radius:10px;background:rgba(3,10,25,.5);color:var(--text);padding:11px 13px;outline:0}input:focus,textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(94,231,225,.1)}
        .feedback-note{display:none;color:var(--success);font-size:13px;margin:12px 0 0}.feedback-note.show{display:block}
        footer{border-top:1px solid var(--line);padding:55px 0 28px;background:rgba(3,8,20,.55)}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:45px}.footer-brand p{color:var(--subtle);font-size:13px;max-width:300px}.footer-title{font-size:13px;color:var(--text);margin-bottom:14px;font-weight:700}.footer-links{list-style:none;margin:0;padding:0}.footer-links li{margin:7px 0;color:var(--subtle);font-size:13px}.footer-links a:hover{color:var(--cyan)}
        .copyright{border-top:1px solid var(--line);margin-top:42px;padding-top:20px;color:var(--subtle);font-size:12px;display:flex;justify-content:space-between;gap:20px}
        @media(max-width:1024px){.hero-grid{gap:35px}.feature-layout{grid-template-columns:180px 1fr}.nav-status{display:none}}
        @media(max-width:768px){
            .container{width:min(100% - 32px,600px)}.section{padding:76px 0}.topbar{top:0;padding-top:8px}.nav-shell{min-height:64px;border-radius:16px;padding:0 13px 0 16px}.brand-name{font-size:14px}.menu-toggle{display:block;margin-left:auto}.nav-links{display:none;position:absolute;left:0;right:0;top:73px;padding:10px;background:rgba(8,15,34,.97);border:1px solid var(--line);border-radius:15px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow)}.nav-links.open{display:flex}.nav-links a{padding:12px 14px}.nav-links a.active:after{left:14px;right:auto;width:35px}.nav-shell>.button{display:none}
            .hero{padding:78px 0 45px}.hero-grid{grid-template-columns:1fr}.hero-visual{min-height:370px}.hero-panel{inset:38px 5px 28px 25px}.orbit{inset:13px 0 5px 0}.feature-layout,.feature-main,.case-layout,.faq-grid{grid-template-columns:1fr}.side-index{position:static;display:flex;gap:6px;overflow:auto;padding:9px}.side-index small{display:none}.side-index a{border:0;white-space:nowrap;padding:8px 10px}.feature-card.primary-card{grid-row:auto;min-height:360px}.feature-card.primary-card .card-index{margin-bottom:105px}.pathline{grid-template-columns:1fr;gap:35px}.pathline:before{left:25px;top:25px;bottom:25px;width:1px;height:auto}.path-step{padding:3px 0 0 75px}.price-wrap{grid-template-columns:1fr}.cta-box{align-items:flex-start;flex-direction:column;padding:30px 25px}.form-grid{grid-template-columns:1fr}.feedback .button{width:100%;margin-top:4px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-brand{grid-column:1/-1}.copyright{flex-direction:column;gap:5px}}
        @media(max-width:520px){h1{font-size:40px}.hero-copy .lead{font-size:16px}.hero-actions .button{width:100%}.hero-points{gap:14px}.hero-visual{min-height:320px}.hero-panel{padding:20px;inset:35px 0 25px 8px}.channel-map{height:200px}.node{transform:scale(.8)}.node.a{left:0}.node.c{right:0}.status-band-inner{overflow:auto}.case-panel,.feature-card,.price-card{padding:23px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}}
        @media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}*,*:before,*:after{animation:none!important;transition:none!important}}

/* roulang page: category1 */
:root{
 --bg:#070d1d;--bg-deep:#050916;--panel:#101a34;--panel-soft:rgba(17,29,58,.74);
 --panel-strong:rgba(21,35,72,.94);--primary:#7587ff;--primary-bright:#9ba8ff;
 --cyan:#5ee7e1;--violet:#a489ff;--text:#f4f7ff;--muted:#aab7d8;--subtle:#7381a5;
 --line:rgba(156,177,255,.18);--line-strong:rgba(143,161,255,.42);
 --success:#74e0b1;--warning:#f2c875;--danger:#f18da9;
 --shadow:0 22px 70px rgba(0,0,0,.34);--glow:0 0 0 1px rgba(126,145,255,.2),0 0 34px rgba(98,112,255,.18);
 --radius-xl:30px;--radius-lg:22px;--radius-md:16px;--radius-sm:11px;
 --ease:260ms cubic-bezier(.2,.75,.25,1)
}
*,:before,:after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;color:var(--text);background:radial-gradient(circle at 80% 8%,rgba(83,105,255,.17),transparent 26rem),radial-gradient(circle at 8% 35%,rgba(40,196,205,.07),transparent 22rem),linear-gradient(180deg,var(--bg),var(--bg-deep));font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.75;overflow-x:hidden}
body:before{content:"";position:fixed;inset:0;pointer-events:none;opacity:.2;background-image:linear-gradient(rgba(148,168,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(148,168,255,.08) 1px,transparent 1px);background-size:72px 72px;mask-image:linear-gradient(to bottom,#000,transparent 85%)}
a{color:inherit;text-decoration:none;transition:color var(--ease),background var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease)}
img{display:block;max-width:100%;height:auto}
button,input{font:inherit}
button{cursor:pointer}
.container{width:min(1180px,calc(100% - 48px));margin:0 auto}
.section{padding:92px 0;position:relative}
.section-head{max-width:700px;margin-bottom:38px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--cyan);font-size:12px;font-weight:700;letter-spacing:.12em;margin-bottom:14px}
.eyebrow:before{content:"";width:24px;height:1px;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
h1,h2,h3,p{margin-top:0}
h1{font-size:clamp(38px,5.2vw,66px);line-height:1.16;letter-spacing:-.055em;margin-bottom:22px}
h2{font-size:clamp(28px,3.5vw,44px);line-height:1.25;letter-spacing:-.04em;margin-bottom:14px}
h3{font-size:20px;line-height:1.4;margin-bottom:10px}
.lead,.section-head p{color:var(--muted);font-size:17px;line-height:1.9}
.topbar{position:sticky;top:14px;z-index:20;padding-top:14px}
.nav-shell{min-height:76px;padding:0 17px 0 23px;display:flex;align-items:center;gap:20px;background:rgba(9,16,37,.8);border:1px solid var(--line);border-radius:22px;backdrop-filter:blur(18px);box-shadow:0 14px 45px rgba(0,0,0,.22)}
.brand{display:flex;align-items:center;gap:12px;white-space:nowrap;font-weight:800;letter-spacing:-.04em}
.brand-mark{width:35px;height:35px;border-radius:11px;position:relative;background:linear-gradient(135deg,var(--cyan),var(--primary) 52%,var(--violet));box-shadow:0 0 22px rgba(110,143,255,.4)}
.brand-mark:after,.brand-mark:before{content:"";position:absolute;border:1px solid rgba(255,255,255,.65);border-radius:50%}
.brand-mark:before{inset:9px 7px 9px 13px;border-left-color:transparent}
.brand-mark:after{inset:6px 5px 6px 10px;border-left-color:transparent;opacity:.55}
.brand-name{font-size:16px}
.nav-status{display:flex;align-items:center;gap:7px;color:var(--subtle);font-size:12px;white-space:nowrap}
.status-dot{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 10px var(--success)}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-links a{position:relative;padding:10px 14px;color:var(--muted);font-size:14px;border-radius:10px}
.nav-links a:hover,.nav-links a.active{color:var(--text);background:rgba(122,140,255,.1)}
.nav-links a.active:after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
.button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 20px;border-radius:12px;border:1px solid transparent;color:#071127;font-weight:750;font-size:14px;line-height:1;background:linear-gradient(135deg,#8f9dff,#687cff);box-shadow:0 8px 24px rgba(101,119,255,.25)}
.button:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 30px rgba(106,126,255,.42),0 0 0 1px rgba(144,158,255,.55)}
.button.secondary{color:var(--text);background:rgba(122,141,255,.08);border-color:var(--line-strong);box-shadow:none}
.button.secondary:hover{background:rgba(122,141,255,.18)}
.button.small{min-height:40px;padding:0 15px;font-size:13px}
.menu-toggle{display:none;color:var(--text);background:transparent;border:1px solid var(--line);border-radius:10px;padding:9px 12px}
.page-hero{padding:86px 0 62px}
.page-hero-grid{display:grid;grid-template-columns:1fr .78fr;gap:70px;align-items:center}
.hero-copy .lead{max-width:680px;margin-bottom:28px}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap}
.index-panel{position:relative;padding:28px;background:linear-gradient(145deg,rgba(27,44,88,.9),rgba(12,21,48,.88));border:1px solid var(--line-strong);border-radius:var(--radius-xl);box-shadow:var(--shadow),var(--glow);overflow:hidden}
.index-panel:before{content:"";position:absolute;width:190px;height:190px;right:-65px;top:-65px;border:1px solid rgba(94,231,225,.28);border-radius:50%;box-shadow:0 0 0 24px rgba(94,231,225,.035),0 0 0 48px rgba(94,231,225,.025)}
.panel-top{display:flex;justify-content:space-between;align-items:center;border-bottom:1px solid var(--line);padding-bottom:18px;margin-bottom:22px}
.panel-title{font-weight:700}.panel-code{color:var(--cyan);font-size:12px}
.route-list{display:grid;gap:16px}
.route-item{display:flex;align-items:center;gap:14px;padding:14px;border:1px solid var(--line);border-radius:14px;background:rgba(8,16,39,.42)}
.route-node{width:11px;height:11px;border-radius:50%;background:var(--primary);box-shadow:0 0 14px var(--primary);flex:0 0 auto}
.route-item:nth-child(2) .route-node{background:var(--cyan);box-shadow:0 0 14px var(--cyan)}
.route-item:nth-child(3) .route-node{background:var(--violet);box-shadow:0 0 14px var(--violet)}
.route-item strong{display:block;font-size:14px}.route-item span{display:block;color:var(--subtle);font-size:12px}
.signal-bar{display:flex;gap:8px;flex-wrap:wrap;padding:18px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);color:var(--subtle);font-size:13px}
.signal-bar span{padding:5px 10px;border:1px solid var(--line);border-radius:99px;background:rgba(122,141,255,.07)}
.split-layout{display:grid;grid-template-columns:220px 1fr;gap:36px}
.filter-rail{position:sticky;top:118px;height:max-content;padding:18px;border:1px solid var(--line);border-radius:var(--radius-lg);background:rgba(13,24,51,.7)}
.filter-rail h3{font-size:15px;margin-bottom:15px}
.filter-rail a{display:block;color:var(--muted);font-size:13px;padding:10px 12px;border-radius:9px;margin:3px 0}
.filter-rail a:hover,.filter-rail a.active{color:var(--text);background:rgba(117,135,255,.15)}
.filter-rail a.active{border-left:2px solid var(--cyan)}
.content-flow{display:grid;gap:15px}
.flow-card{display:grid;grid-template-columns:92px 1fr auto;gap:22px;align-items:center;padding:22px;border:1px solid var(--line);border-radius:var(--radius-md);background:var(--panel-soft);transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease)}
.flow-card:hover{transform:translateX(5px);border-color:var(--line-strong);box-shadow:var(--glow)}
.cover-art{height:82px;border-radius:12px;background:radial-gradient(circle at 70% 25%,rgba(94,231,225,.6),transparent 22%),linear-gradient(145deg,#283b89,#111d48 58%,#172d4a);position:relative;overflow:hidden}
.cover-art:after{content:"";position:absolute;inset:18px 13px;border:1px solid rgba(255,255,255,.24);border-radius:50%;transform:rotate(-28deg)}
.flow-card h3{margin-bottom:5px;font-size:18px}
.flow-card p{color:var(--muted);font-size:14px;line-height:1.7;margin:0}
.card-meta{display:flex;align-items:center;gap:9px;flex-wrap:wrap;margin-bottom:6px}
.tag,.badge{display:inline-flex;align-items:center;border-radius:99px;font-size:11px;padding:4px 9px;line-height:1.3}
.tag{color:var(--cyan);border:1px solid rgba(94,231,225,.27);background:rgba(94,231,225,.07)}
.badge{color:var(--warning);border:1px solid rgba(242,200,117,.3);background:rgba(242,200,117,.07)}
.card-state{color:var(--subtle);font-size:12px;white-space:nowrap}
.topic-band{display:flex;gap:10px;flex-wrap:wrap;margin:0 0 28px}
.topic-band a{padding:8px 14px;color:var(--muted);border:1px solid var(--line);border-radius:99px;font-size:13px;background:rgba(16,26,52,.5)}
.topic-band a:hover{color:var(--text);border-color:var(--cyan);background:rgba(94,231,225,.08)}
.path-section{background:rgba(10,18,40,.54);border-top:1px solid rgba(156,177,255,.08);border-bottom:1px solid rgba(156,177,255,.08)}
.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.path-step{position:relative;padding:26px 24px 25px;border:1px solid var(--line);border-radius:var(--radius-lg);background:linear-gradient(145deg,rgba(20,34,70,.8),rgba(12,21,45,.62))}
.path-step:not(:last-child):after{content:"→";position:absolute;right:-18px;top:50%;z-index:2;color:var(--cyan);font-size:20px}
.step-number{color:var(--cyan);font-size:12px;letter-spacing:.14em;font-weight:700;margin-bottom:20px}
.path-step p{color:var(--muted);font-size:14px;margin-bottom:18px}
.result-line{display:flex;gap:8px;align-items:center;color:var(--subtle);font-size:12px}
.result-line i{width:6px;height:6px;background:var(--success);border-radius:50%;box-shadow:0 0 8px var(--success)}
.faq-list{max-width:850px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;text-align:left;color:var(--text);background:transparent;border:0;padding:21px 0;font-weight:700}
.faq-question span:last-child{color:var(--cyan);font-size:22px;font-weight:400;transition:transform var(--ease)}
.faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
.faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 42px 22px 0}
.faq-item.open .faq-answer{display:block}
.cta-banner{display:flex;align-items:center;justify-content:space-between;gap:28px;padding:34px 38px;border:1px solid var(--line-strong);border-radius:var(--radius-xl);background:linear-gradient(105deg,rgba(31,49,102,.82),rgba(15,28,61,.76));box-shadow:var(--glow)}
.cta-banner h2{font-size:30px;margin-bottom:8px}.cta-banner p{margin:0;color:var(--muted)}
footer{padding:58px 0 25px;border-top:1px solid var(--line);background:rgba(4,9,22,.48)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px;padding-bottom:42px}
.footer-brand p{color:var(--subtle);font-size:13px;max-width:310px;margin:18px 0 0}
.footer-title{font-size:13px;font-weight:700;color:var(--text);margin-bottom:14px}
.footer-links{list-style:none;margin:0;padding:0}.footer-links li{margin:8px 0}
.footer-links a{color:var(--subtle);font-size:13px}.footer-links a:hover{color:var(--cyan)}
.copyright{display:flex;justify-content:space-between;gap:18px;border-top:1px solid var(--line);padding-top:20px;color:#5f6d91;font-size:11px}
.notice{display:flex;align-items:center;gap:12px;margin-top:25px;color:var(--subtle);font-size:13px}
.notice:before{content:"";width:22px;height:1px;background:var(--violet)}
:focus-visible{outline:2px solid var(--cyan);outline-offset:4px}
@media(max-width:1024px){
 .nav-status{display:none}.page-hero-grid{gap:38px}.container{width:min(100% - 40px,900px)}
}
@media(max-width:768px){
 .container{width:calc(100% - 32px)}.topbar{top:7px;padding-top:7px}
 .nav-shell{min-height:65px;padding:0 12px 0 15px;gap:10px}.brand-name{font-size:14px}
 .menu-toggle{display:block;margin-left:auto}.nav-links{display:none;position:absolute;left:0;right:0;top:74px;padding:10px;background:rgba(9,16,37,.97);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
 .nav-links.is-open{display:flex}.nav-links a{padding:12px 14px}.nav-shell>.button{display:none}
 .page-hero{padding:66px 0 45px}.page-hero-grid{grid-template-columns:1fr;gap:36px}h1{font-size:42px}
 .section{padding:70px 0}.split-layout{grid-template-columns:1fr;gap:25px}.filter-rail{position:static;display:flex;align-items:center;gap:8px;overflow-x:auto;padding:10px}
 .filter-rail h3{display:none}.filter-rail a{white-space:nowrap;margin:0}.path-grid{grid-template-columns:1fr}.path-step:not(:last-child):after{content:"↓";right:auto;top:auto;bottom:-24px;left:50%;font-size:18px}
 .cta-banner{align-items:flex-start;flex-direction:column;padding:28px 24px}.footer-grid{grid-template-columns:1fr 1fr;gap:30px}.footer-brand{grid-column:1/-1}
}
@media(max-width:520px){
 h1{font-size:35px}.lead,.section-head p{font-size:15px}.hero-actions .button{width:100%}
 .flow-card{grid-template-columns:64px 1fr;gap:14px;padding:16px}.cover-art{height:64px}.flow-card .button{grid-column:2;justify-self:start;min-height:40px}
 .card-state{display:none}.copyright{flex-direction:column;gap:5px}.footer-grid{grid-template-columns:1fr}.footer-brand{grid-column:auto}
 .index-panel{padding:20px}.signal-bar{font-size:12px}
}
@media(prefers-reduced-motion:reduce){
 *,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}

/* roulang page: category2 */
:root{
      --bg:#070d1d;
      --bg-deep:#050916;
      --panel:#101a34;
      --panel-soft:rgba(17,29,58,.74);
      --panel-strong:rgba(21,35,72,.94);
      --primary:#7587ff;
      --primary-bright:#9ba8ff;
      --cyan:#5ee7e1;
      --violet:#a489ff;
      --text:#f4f7ff;
      --muted:#aab7d8;
      --subtle:#7381a5;
      --line:rgba(156,177,255,.18);
      --line-strong:rgba(143,161,255,.42);
      --success:#74e0b1;
      --warning:#f2c875;
      --danger:#f18da9;
      --shadow:0 22px 70px rgba(0,0,0,.34);
      --glow:0 0 0 1px rgba(126,145,255,.2),0 0 34px rgba(98,112,255,.18);
      --radius-xl:30px;
      --radius-lg:22px;
      --radius-md:16px;
      --radius-sm:11px;
      --ease:260ms cubic-bezier(.2,.75,.25,1);
    }
    *,*:before,*:after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;color:var(--text);background:
      radial-gradient(circle at 76% 8%,rgba(83,105,255,.17),transparent 25rem),
      radial-gradient(circle at 8% 32%,rgba(40,196,205,.07),transparent 22rem),
      linear-gradient(180deg,var(--bg),var(--bg-deep));
      font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
      font-size:16px;line-height:1.75;overflow-x:hidden
    }
    body:before{
      content:"";position:fixed;inset:0;pointer-events:none;opacity:.22;
      background-image:linear-gradient(rgba(148,168,255,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(148,168,255,.08) 1px,transparent 1px);
      background-size:72px 72px;mask-image:linear-gradient(to bottom,black,transparent 82%)
    }
    a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease),transform var(--ease),box-shadow var(--ease)}
    img{display:block;max-width:100%;height:auto}
    button,input,textarea{font:inherit}
    button{cursor:pointer}
    .container{width:min(1180px,calc(100% - 48px));margin:0 auto}
    .section{padding:96px 0;position:relative}
    .section-head{max-width:700px;margin-bottom:40px}
    .eyebrow{display:inline-flex;align-items:center;gap:9px;color:var(--cyan);font-size:12px;font-weight:700;letter-spacing:.14em;margin-bottom:15px}
    .eyebrow:before{content:"";width:24px;height:1px;background:var(--cyan);box-shadow:0 0 12px var(--cyan)}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(36px,5vw,66px);line-height:1.14;letter-spacing:-.055em;margin-bottom:23px}
    h2{font-size:clamp(28px,3vw,42px);line-height:1.25;letter-spacing:-.04em;margin-bottom:14px}
    h3{font-size:20px;line-height:1.35;margin-bottom:10px}
    .lead,.section-head p{color:var(--muted);font-size:17px}
    .topbar{position:sticky;top:14px;z-index:20;padding-top:14px}
    .nav-shell{min-height:76px;padding:0 17px 0 23px;display:flex;align-items:center;gap:20px;background:rgba(9,16,37,.78);border:1px solid var(--line);border-radius:22px;backdrop-filter:blur(18px);box-shadow:0 14px 45px rgba(0,0,0,.22)}
    .brand{display:flex;align-items:center;gap:12px;white-space:nowrap;font-weight:800;letter-spacing:-.04em}
    .brand-mark{width:35px;height:35px;border-radius:11px;position:relative;background:linear-gradient(135deg,var(--cyan),var(--primary) 52%,var(--violet));box-shadow:0 0 22px rgba(110,143,255,.4)}
    .brand-mark:after,.brand-mark:before{content:"";position:absolute;border:1px solid rgba(255,255,255,.65);border-radius:50%}
    .brand-mark:before{inset:9px 7px 9px 13px;border-left-color:transparent}
    .brand-mark:after{inset:6px 5px 6px 10px;border-left-color:transparent;opacity:.55}
    .brand-name{font-size:16px}
    .nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
    .nav-links a{position:relative;padding:10px 14px;color:var(--muted);font-size:14px;border-radius:10px}
    .nav-links a:hover,.nav-links a.active{color:var(--text);background:rgba(122,140,255,.1)}
    .nav-links a.active:after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;background:var(--cyan);box-shadow:0 0 10px var(--cyan)}
    .nav-status{display:flex;align-items:center;gap:7px;color:var(--subtle);font-size:12px;white-space:nowrap}
    .status-dot{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 10px var(--success)}
    .button{display:inline-flex;align-items:center;justify-content:center;gap:9px;min-height:48px;padding:0 20px;border-radius:12px;border:1px solid transparent;color:#071127;font-weight:750;font-size:14px;line-height:1;background:linear-gradient(135deg,#8f9dff,#687cff);box-shadow:0 8px 24px rgba(101,119,255,.25)}
    .button:hover{color:#fff;transform:translateY(-2px);box-shadow:0 12px 30px rgba(106,126,255,.42),0 0 0 1px rgba(144,158,255,.55)}
    .button.secondary{color:var(--text);background:rgba(122,141,255,.08);border-color:var(--line-strong);box-shadow:none}
    .button.secondary:hover{background:rgba(122,141,255,.18)}
    .button.small{min-height:40px;padding:0 15px;font-size:13px}
    .menu-toggle{display:none;color:var(--text);background:transparent;border:1px solid var(--line);border-radius:10px;padding:9px 12px}
    .hero{padding:92px 0 66px}
    .topic-hero{display:grid;grid-template-columns:.88fr 1.12fr;gap:72px;align-items:end}
    .hero-copy .lead{max-width:650px;line-height:1.9;margin-bottom:28px}
    .hero-actions{display:flex;gap:12px;flex-wrap:wrap}
    .hero-note{display:flex;gap:18px;margin-top:30px;color:var(--subtle);font-size:13px}
    .hero-note span{padding-left:14px;border-left:1px solid var(--line-strong)}
    .index-board{position:relative;padding:28px;border:1px solid var(--line-strong);border-radius:var(--radius-xl);background:linear-gradient(145deg,rgba(24,40,81,.9),rgba(10,19,43,.84));box-shadow:var(--shadow),var(--glow);overflow:hidden}
    .index-board:before{content:"";position:absolute;width:230px;height:230px;right:-80px;top:-90px;border:1px solid rgba(94,231,225,.25);border-radius:50%;box-shadow:0 0 0 26px rgba(94,231,225,.04),0 0 0 54px rgba(94,231,225,.025)}
    .board-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:25px;color:var(--muted);font-size:13px}
    .board-label{color:var(--text);font-weight:700}
    .badge{display:inline-flex;align-items:center;gap:6px;padding:5px 10px;border-radius:999px;border:1px solid var(--line-strong);color:var(--cyan);background:rgba(94,231,225,.07);font-size:12px;white-space:nowrap}
    .topic-map{display:grid;grid-template-columns:1fr 1fr;gap:12px;position:relative}
    .topic-node{min-height:102px;padding:17px;border:1px solid var(--line);border-radius:var(--radius-md);background:rgba(7,15,35,.58);transition:var(--ease)}
    .topic-node:hover{transform:translateY(-3px);border-color:var(--cyan);box-shadow:0 0 25px rgba(94,231,225,.12)}
    .topic-node strong{display:block;font-size:16px;margin-bottom:6px}
    .topic-node small{display:block;color:var(--subtle);font-size:12px;line-height:1.6}
    .node-line{position:absolute;left:50%;top:50%;width:38px;height:1px;background:var(--cyan);opacity:.45;box-shadow:0 0 12px var(--cyan)}
    .filter-strip{display:flex;flex-wrap:wrap;gap:10px;padding:16px 18px;border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:rgba(9,17,37,.46)}
    .filter-button{border:1px solid var(--line);background:transparent;color:var(--muted);border-radius:999px;padding:8px 15px;font-size:13px;transition:var(--ease)}
    .filter-button:hover,.filter-button.active{color:var(--text);border-color:var(--primary-bright);background:rgba(117,135,255,.16);box-shadow:0 0 18px rgba(117,135,255,.14)}
    .feature-layout{display:grid;grid-template-columns:minmax(300px,.72fr) minmax(0,1.28fr);gap:25px;align-items:stretch}
    .feature-card,.topic-list{border:1px solid var(--line);background:var(--panel-soft);backdrop-filter:blur(14px)}
    .feature-card{min-height:390px;padding:30px;border-radius:var(--radius-xl);display:flex;flex-direction:column;justify-content:space-between;position:relative;overflow:hidden}
    .feature-card:after{content:"";position:absolute;right:-50px;bottom:-80px;width:220px;height:220px;border:1px solid rgba(164,137,255,.25);border-radius:50%;box-shadow:0 0 0 24px rgba(164,137,255,.05),0 0 0 48px rgba(164,137,255,.035)}
    .feature-kicker{color:var(--violet);font-size:13px;font-weight:700;margin-bottom:22px}
    .feature-card p{color:var(--muted);max-width:360px}
    .feature-meta{display:flex;gap:9px;flex-wrap:wrap}
    .topic-list{border-radius:var(--radius-lg);padding:11px 22px}
    .topic-item{display:grid;grid-template-columns:48px 1fr auto;align-items:center;gap:18px;padding:22px 0;border-bottom:1px solid var(--line)}
    .topic-item:last-child{border-bottom:0}
    .topic-number{font-size:13px;color:var(--cyan);font-weight:700}
    .topic-item h3{font-size:17px;margin:0 0 4px}
    .topic-item p{font-size:13px;color:var(--subtle);margin:0}
    .topic-item .arrow{color:var(--primary-bright);font-size:20px}
    .topic-item:hover h3{color:var(--cyan)}
    .path-section{background:rgba(13,23,49,.38);border-top:1px solid rgba(156,177,255,.08);border-bottom:1px solid rgba(156,177,255,.08)}
    .path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;margin-top:34px}
    .path-step{position:relative;padding:24px 30px 22px 0}
    .path-step:not(:last-child):after{content:"";position:absolute;left:42px;right:0;top:37px;border-top:1px dashed var(--line-strong)}
    .step-marker{position:relative;z-index:1;width:28px;height:28px;display:grid;place-items:center;margin-bottom:22px;border:1px solid var(--cyan);border-radius:50%;background:var(--bg);color:var(--cyan);font-size:12px;font-weight:700}
    .path-step p{color:var(--muted);font-size:14px;max-width:290px}
    .faq-grid{display:grid;grid-template-columns:.72fr 1.28fr;gap:70px;align-items:start}
    .faq-list{border-top:1px solid var(--line)}
    .faq-item{border-bottom:1px solid var(--line)}
    .faq-question{width:100%;display:flex;justify-content:space-between;gap:18px;text-align:left;padding:21px 0;border:0;background:transparent;color:var(--text);font-weight:700}
    .faq-question span:last-child{color:var(--cyan);font-size:22px;line-height:1;transition:transform var(--ease)}
    .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
    .faq-answer{display:none;color:var(--muted);font-size:14px;padding:0 38px 20px 0}
    .faq-item.open .faq-answer{display:block}
    .cta-panel{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:34px 38px;border:1px solid var(--line-strong);border-radius:var(--radius-xl);background:linear-gradient(110deg,rgba(26,43,87,.92),rgba(13,25,54,.75));box-shadow:var(--glow)}
    .cta-panel h2{font-size:29px;margin-bottom:8px}
    .cta-panel p{color:var(--muted);margin:0}
    footer{padding:60px 0 24px;border-top:1px solid var(--line);background:rgba(4,9,22,.54)}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:45px;padding-bottom:45px}
    .footer-brand p{color:var(--subtle);max-width:350px;font-size:14px;margin:18px 0 0}
    .footer-title{font-size:13px;color:var(--text);font-weight:700;margin-bottom:15px}
    .footer-links{list-style:none;margin:0;padding:0}
    .footer-links li{margin:8px 0}
    .footer-links a{color:var(--subtle);font-size:14px}
    .footer-links a:hover{color:var(--cyan)}
    .copyright{display:flex;justify-content:space-between;gap:20px;padding-top:20px;border-top:1px solid var(--line);color:var(--subtle);font-size:12px}
    :focus-visible{outline:2px solid var(--cyan);outline-offset:4px}
    @media(max-width:1024px){
      .topic-hero{grid-template-columns:1fr 1fr;gap:35px}
      .nav-status{display:none}
      .feature-layout{grid-template-columns:1fr}
    }
    @media(max-width:768px){
      .container{width:min(100% - 32px,620px)}
      .topbar{top:0;padding-top:8px}
      .nav-shell{min-height:64px;padding:0 13px 0 16px}
      .nav-links{display:none;position:absolute;top:72px;left:0;right:0;padding:10px;background:rgba(9,16,37,.97);border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow);flex-direction:column;align-items:stretch}
      .nav-links.is-open{display:flex}
      .nav-links a{padding:13px 15px}
      .menu-toggle{display:block;margin-left:auto}
      .nav-shell>.button{display:none}
      .hero{padding:68px 0 42px}
      .topic-hero,.faq-grid{grid-template-columns:1fr;gap:38px}
      h1{font-size:clamp(34px,10vw,52px)}
      .index-board{padding:21px}
      .section{padding:72px 0}
      .path-grid{grid-template-columns:1fr;gap:15px}
      .path-step{padding:18px 0 18px 48px;border-left:1px dashed var(--line-strong)}
      .path-step:not(:last-child):after{left:13px;right:auto;top:58px;height:45px;border-top:0;border-left:1px dashed var(--line-strong)}
      .step-marker{position:absolute;left:-15px;top:18px;margin:0}
      .cta-panel{align-items:flex-start;flex-direction:column;padding:27px}
      .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
      .footer-brand{grid-column:1/-1}
      .copyright{flex-direction:column;gap:6px}
    }
    @media(max-width:520px){
      .container{width:calc(100% - 28px)}
      .brand-name{font-size:14px}
      .topic-map{grid-template-columns:1fr}
      .node-line{display:none}
      .topic-item{grid-template-columns:34px 1fr auto;gap:10px;padding:18px 0}
      .topic-item h3{font-size:15px}
      .hero-note{gap:10px;flex-direction:column}
      .footer-grid{grid-template-columns:1fr}
      .footer-brand{grid-column:auto}
      .button{width:100%}
      .hero-actions{width:100%}
      .filter-strip{overflow-x:auto;flex-wrap:nowrap;padding-left:0;padding-right:0;scrollbar-width:none}
      .filter-strip::-webkit-scrollbar{display:none}
      .filter-button{flex:0 0 auto}
    }
    @media(prefers-reduced-motion:reduce){
      *,*:before,*:after{scroll-behavior:auto!important;transition:none!important;animation:none!important}
    }