/* roulang page: index */
:root{
      --ink:#eaf3ff;
      --muted:#92a8c2;
      --navy:#071321;
      --deep:#0b1c31;
      --panel:rgba(17,39,65,.78);
      --line:rgba(150,190,230,.16);
      --cyan:#55d8ff;
      --blue:#4f8cff;
      --lime:#b8ef72;
      --shadow:0 20px 60px rgba(0,0,0,.28);
      --radius:20px;
    }
    *,*::before,*::after{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--navy);color:var(--ink);font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;line-height:1.75;letter-spacing:0}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    .container{max-width:1180px}
    .topbar{height:34px;background:#06101d;border-bottom:1px solid var(--line);color:#8ea6bf;font-size:12px}
    .topbar .container{height:100%;display:flex;align-items:center;justify-content:space-between}
    .topbar strong{color:var(--cyan);font-weight:700}
    .site-header{position:sticky;top:0;z-index:20;background:rgba(7,19,33,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
    .navbar{min-height:76px;padding:12px 0}
    .navbar-brand{display:flex;align-items:center;gap:11px;font-size:21px;font-weight:800;color:#fff}
    .logo-mark{width:38px;height:38px;border-radius:12px;display:grid;place-items:center;background:linear-gradient(145deg,var(--cyan),var(--blue));color:#061321;font-weight:900;box-shadow:0 0 25px rgba(85,216,255,.3)}
    .navbar-nav{gap:7px}
    .nav-link{color:#a7bad0!important;padding:9px 15px!important;border-radius:10px;font-size:14px}
    .nav-link:hover,.nav-link.active{color:#fff!important;background:rgba(85,216,255,.11)}
    .nav-tools{display:flex;align-items:center;gap:10px}
    .search-box{border:1px solid var(--line);background:#0b2037;color:#9bb1c9;border-radius:10px;padding:8px 12px;font-size:13px}
    .search-box span{color:var(--cyan);margin-right:5px}
    .btn-glow{border:0;border-radius:11px;padding:11px 19px;background:var(--cyan);color:#061321;font-weight:800;box-shadow:0 8px 24px rgba(85,216,255,.2);transition:.25s}
    .btn-glow:hover{transform:translateY(-2px);background:#84e5ff;color:#04101b;box-shadow:0 12px 30px rgba(85,216,255,.35)}
    .btn-outline{border:1px solid rgba(85,216,255,.5);border-radius:11px;padding:10px 18px;color:var(--cyan);transition:.25s}
    .btn-outline:hover{background:rgba(85,216,255,.1);color:#fff;border-color:var(--cyan)}
    .hero{position:relative;min-height:600px;display:flex;align-items:center;overflow:hidden;background:linear-gradient(90deg,rgba(5,16,29,.98) 20%,rgba(7,19,33,.78) 58%,rgba(7,19,33,.22)),url("https://images.unsplash.com/photo-1511512578047-dfb367046420?auto=format&fit=crop&w=2000&q=88") center/cover}
    .hero::after{content:"";position:absolute;inset:auto 0 0;height:150px;background:linear-gradient(transparent,var(--navy));pointer-events:none}
    .hero-content{position:relative;z-index:1;padding:80px 0 115px}
    .eyebrow,.section-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--cyan);font-size:12px;font-weight:800;letter-spacing:1.5px;text-transform:uppercase}
    .eyebrow::before,.section-kicker::before{content:"";width:22px;height:2px;background:var(--cyan)}
    h1{max-width:720px;margin:22px 0 20px;font-size:clamp(42px,6vw,76px);line-height:1.1;letter-spacing:0;font-weight:900}
    .hero-copy{max-width:690px;color:#bfd0e3;font-size:17px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:28px 0}
    .trust-strip{display:flex;flex-wrap:wrap;gap:10px;margin-top:38px}
    .trust-item{border:1px solid rgba(184,239,114,.28);background:rgba(9,29,46,.72);border-radius:9px;padding:8px 13px;color:#d8edc3;font-size:13px}
    .trust-item::before{content:"✓";color:var(--lime);font-weight:900;margin-right:7px}
    section{padding:92px 0}
    .section-head{max-width:720px;margin-bottom:38px}
    .section-head h2{font-size:clamp(28px,4vw,44px);line-height:1.2;margin:14px 0;color:#fff;font-weight:850}
    .section-head p{color:var(--muted);margin:0;font-size:16px}
    .section-dark{background:#081a2e}
    .section-soft{background:#0a2037;border-top:1px solid rgba(150,190,230,.08);border-bottom:1px solid rgba(150,190,230,.08)}
    .glass-card{height:100%;background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:28px;box-shadow:var(--shadow);transition:.25s}
    .glass-card:hover{transform:translateY(-5px);border-color:rgba(85,216,255,.42);box-shadow:0 25px 65px rgba(0,0,0,.35)}
    .icon-box{width:46px;height:46px;border-radius:13px;display:grid;place-items:center;background:rgba(85,216,255,.12);color:var(--cyan);font-size:20px;margin-bottom:21px}
    .glass-card h3{font-size:20px;margin:0 0 10px;color:#fff}
    .glass-card p{color:var(--muted);font-size:14px;margin:0}
    .number{font-size:40px;font-weight:900;line-height:1;color:var(--cyan)}
    .number small{font-size:16px;color:var(--muted);font-weight:500}
    .matrix{display:grid;grid-template-columns:1.25fr .75fr 1fr;gap:15px}
    .matrix-item{min-height:180px;border:1px solid var(--line);border-radius:17px;padding:24px;background:#0d2944;position:relative;overflow:hidden}
    .matrix-item:nth-child(2){background:#102b3b}.matrix-item:nth-child(3){background:#172b42}.matrix-item:nth-child(4){background:#10283c}.matrix-item:nth-child(5){background:#0d243c}
    .matrix-item strong{display:block;font-size:19px;color:#fff;margin-bottom:6px}
    .matrix-item span{color:var(--muted);font-size:13px}
    .matrix-item b{position:absolute;right:20px;bottom:12px;font-size:52px;color:rgba(85,216,255,.12)}
    .post-list{display:grid;gap:0;border-top:1px solid var(--line)}
    .post-row{display:grid;grid-template-columns:105px 1fr 105px;gap:22px;align-items:center;padding:22px 0;border-bottom:1px solid var(--line)}
    .post-date,.post-type{color:var(--muted);font-size:13px}
    .post-type{color:var(--cyan);text-align:right}
    .post-row h3{margin:0 0 4px;font-size:17px;color:#fff}
    .post-row p{margin:0;color:var(--muted);font-size:13px}
    .topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
    .topic{min-height:190px;border-radius:17px;padding:23px;background:#102a43;border:1px solid var(--line);display:flex;flex-direction:column;justify-content:space-between;transition:.25s}
    .topic:hover{background:#153957;border-color:rgba(85,216,255,.4)}
    .topic small{color:var(--cyan)}.topic h3{font-size:18px;margin:16px 0 5px}.topic p{font-size:13px;color:var(--muted);margin:0}
    .timeline{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
    .step{padding:25px 22px 0;border-right:1px solid var(--line);position:relative}
    .step:last-child{border-right:0}
    .step-num{width:31px;height:31px;border-radius:50%;display:grid;place-items:center;background:var(--cyan);color:#061321;font-weight:900;margin-top:-16px;margin-bottom:20px;box-shadow:0 0 0 8px #081a2e}
    .step h3{font-size:17px;margin-bottom:8px}.step p{color:var(--muted);font-size:14px;margin:0}
    .metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--line);border:1px solid var(--line);border-radius:17px;overflow:hidden}
    .metric{background:#0d243b;padding:30px 24px}.metric p{margin:12px 0 0;color:var(--muted);font-size:13px}
    .quote-area{display:grid;grid-template-columns:1fr 1.2fr;gap:35px;align-items:center}
    .quote{font-size:23px;line-height:1.65;color:#e4f2ff;margin:0}
    .quote-mark{font-size:76px;line-height:.6;color:var(--cyan);font-family:Georgia,serif}
    .quote-by{margin-top:18px;color:var(--muted);font-size:13px}
    .resource-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
    .resource{padding:22px;border:1px solid var(--line);border-radius:15px;background:rgba(13,36,59,.7)}
    .resource h3{font-size:17px;margin:0 0 8px}.resource p{font-size:13px;color:var(--muted);margin:0}
    .contact-band{background:linear-gradient(105deg,#123b59,#103247 55%,#183b43);border:1px solid rgba(85,216,255,.27);border-radius:24px;padding:48px}
    .contact-band h2{font-size:36px;margin:0 0 12px}.contact-band p{color:#bed1df;max-width:650px}
    .contact-form{display:flex;gap:10px;margin-top:24px;max-width:620px}
    .contact-form input{flex:1;min-width:0;border:1px solid rgba(200,230,255,.22);background:rgba(3,15,28,.4);color:#fff;border-radius:11px;padding:12px 15px;outline:none}
    .contact-form input:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(85,216,255,.12)}
    footer{padding:45px 0 25px;background:#050f1b;border-top:1px solid var(--line)}
    .footer-main{display:flex;justify-content:space-between;gap:30px;padding-bottom:35px}
    .footer-brand{max-width:330px;color:var(--muted);font-size:13px}.footer-brand .navbar-brand{margin-bottom:15px}
    .footer-links{display:flex;gap:65px}.footer-links h4{font-size:14px;color:#fff;margin:5px 0 13px}.footer-links a{display:block;color:var(--muted);font-size:13px;margin:7px 0}.footer-links a:hover{color:var(--cyan)}
    .copyright{border-top:1px solid var(--line);padding-top:20px;color:#7189a2;font-size:12px;display:flex;justify-content:space-between;gap:20px}
    :focus-visible{outline:3px solid rgba(85,216,255,.65);outline-offset:3px}
    @media(max-width:991px){
      .nav-tools{display:none}.navbar-toggler{border-color:var(--line)}.navbar-toggler-icon{filter:invert(1)}
      .navbar-collapse{padding-top:12px}.matrix{grid-template-columns:repeat(2,1fr)}.topic-grid{grid-template-columns:repeat(2,1fr)}
      .quote-area{grid-template-columns:1fr}.hero{min-height:560px}
    }
    @media(max-width:767px){
      .topbar .container{justify-content:center}.topbar span{display:none}.navbar{min-height:66px}
      section{padding:65px 0}.hero-content{padding:60px 0 95px}h1{font-size:44px}.hero-copy{font-size:15px}
      .matrix,.topic-grid,.timeline,.metrics,.resource-grid{grid-template-columns:1fr}
      .step{border-right:0;border-bottom:1px solid var(--line);padding:22px 0 27px}.step:last-child{border-bottom:0}
      .post-row{grid-template-columns:1fr;gap:5px}.post-type{text-align:left}.contact-band{padding:30px 22px}.contact-band h2{font-size:29px}
      .contact-form{flex-direction:column}.footer-main{display:block}.footer-links{margin-top:28px;gap:35px}.copyright{display:block}.copyright span{display:block;margin-top:6px}
    }
    @media(max-width:520px){.hero-actions a{width:100%;text-align:center}.trust-strip{display:grid;grid-template-columns:1fr}.section-head h2{font-size:31px}.glass-card{padding:22px}}

/* roulang page: category1 */
:root{
            --ink:#eaf3ff;
            --muted:#92a8c2;
            --navy:#071321;
            --deep:#0b1c31;
            --panel:rgba(17,39,65,.78);
            --line:rgba(150,190,230,.16);
            --cyan:#55d8ff;
            --blue:#4f8cff;
            --lime:#b8ef72;
            --warning:#ffcf70;
            --shadow:0 20px 60px rgba(0,0,0,.28);
            --radius:20px;
            --radius-sm:12px;
        }

        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            overflow-x:hidden;
            background:var(--navy);
            color:var(--ink);
            font-family:Inter,"PingFang SC","Microsoft YaHei",Arial,sans-serif;
            line-height:1.75;
            letter-spacing:0;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button,input{font:inherit}
        button:focus-visible,a:focus-visible,input:focus-visible{
            outline:3px solid rgba(85,216,255,.42);
            outline-offset:3px;
        }
        .container{max-width:1180px}
        .topbar{
            height:34px;
            background:#06101d;
            border-bottom:1px solid var(--line);
            color:#8ea6bf;
            font-size:12px;
        }
        .topbar .container{
            height:100%;
            display:flex;
            align-items:center;
            justify-content:space-between;
        }
        .topbar strong{color:var(--cyan);font-weight:700}
        .site-header{
            position:sticky;
            top:0;
            z-index:100;
            background:rgba(7,19,33,.9);
            backdrop-filter:blur(18px);
            border-bottom:1px solid var(--line);
        }
        .navbar{min-height:76px;padding:12px 0}
        .navbar-brand{
            display:flex;
            align-items:center;
            gap:11px;
            color:#fff;
            font-size:21px;
            font-weight:800;
            white-space:nowrap;
        }
        .navbar-brand:hover{color:#fff}
        .logo-mark{
            width:38px;
            height:38px;
            flex:0 0 38px;
            display:grid;
            place-items:center;
            border-radius:12px;
            background:linear-gradient(145deg,var(--cyan),var(--blue));
            color:#061321;
            font-weight:900;
            box-shadow:0 0 25px rgba(85,216,255,.3);
        }
        .navbar-nav{gap:7px}
        .nav-link{
            color:#a7bad0!important;
            padding:9px 15px!important;
            border-radius:10px;
            font-size:14px;
            transition:background .2s,color .2s;
        }
        .nav-link:hover,.nav-link.active{
            color:#fff!important;
            background:rgba(85,216,255,.11);
        }
        .nav-tools{display:flex;align-items:center;gap:10px}
        .search-box{
            border:1px solid var(--line);
            background:#0b2037;
            color:#9bb1c9;
            border-radius:10px;
            padding:8px 12px;
            font-size:13px;
        }
        .search-box span{color:var(--cyan);margin-right:5px}
        .navbar-toggler{border-color:var(--line);box-shadow:none!important}
        .navbar-toggler-icon{filter:invert(1)}
        .btn-glow{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            border:0;
            border-radius:11px;
            padding:11px 19px;
            background:var(--cyan);
            color:#061321;
            font-weight:800;
            box-shadow:0 8px 24px rgba(85,216,255,.2);
            transition:transform .25s,background .25s,box-shadow .25s;
        }
        .btn-glow:hover{
            transform:translateY(-2px);
            background:#84e5ff;
            color:#04101b;
            box-shadow:0 12px 30px rgba(85,216,255,.35);
        }
        .btn-outline{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            border:1px solid rgba(85,216,255,.5);
            border-radius:11px;
            padding:10px 18px;
            color:var(--cyan);
            transition:background .25s,color .25s,border-color .25s;
        }
        .btn-outline:hover{
            background:rgba(85,216,255,.1);
            color:#fff;
            border-color:var(--cyan);
        }

        main{overflow:hidden}
        section{position:relative;padding:88px 0}
        .section-dark{background:#081a2e}
        .section-soft{
            background:#0a2037;
            border-top:1px solid rgba(150,190,230,.08);
            border-bottom:1px solid rgba(150,190,230,.08);
        }
        .section-head{max-width:735px;margin-bottom:38px}
        .section-head.split{
            max-width:none;
            display:flex;
            align-items:end;
            justify-content:space-between;
            gap:32px;
        }
        .section-head.split > div:first-child{max-width:720px}
        .section-head h2{
            margin:14px 0;
            color:#fff;
            font-size:clamp(28px,4vw,44px);
            font-weight:850;
            line-height:1.2;
        }
        .section-head p{margin:0;color:var(--muted);font-size:16px}
        .eyebrow,.section-kicker{
            display:inline-flex;
            align-items:center;
            gap:8px;
            color:var(--cyan);
            font-size:12px;
            font-weight:800;
            letter-spacing:1.5px;
        }
        .eyebrow::before,.section-kicker::before{
            content:"";
            width:22px;
            height:2px;
            background:var(--cyan);
        }
        .tag{
            display:inline-flex;
            align-items:center;
            width:max-content;
            border:1px solid rgba(85,216,255,.22);
            border-radius:999px;
            padding:5px 10px;
            background:rgba(85,216,255,.08);
            color:#9ce9ff;
            font-size:12px;
            font-weight:700;
        }

        .category-hero{
            min-height:670px;
            display:flex;
            align-items:center;
            padding:82px 0 104px;
            background:
                linear-gradient(90deg,rgba(5,16,29,.98) 10%,rgba(7,19,33,.9) 54%,rgba(7,19,33,.52)),
                url("https://images.unsplash.com/photo-1550745165-9bc0b252726f?auto=format&fit=crop&w=2000&q=88") center/cover;
        }
        .category-hero::after{
            content:"";
            position:absolute;
            inset:auto 0 0;
            height:150px;
            background:linear-gradient(transparent,var(--navy));
            pointer-events:none;
        }
        .hero-layout{
            position:relative;
            z-index:2;
            display:grid;
            grid-template-columns:minmax(0,1.08fr) minmax(390px,.92fr);
            align-items:center;
            gap:64px;
        }
        .breadcrumb-line{
            display:flex;
            flex-wrap:wrap;
            gap:8px;
            margin-bottom:18px;
            color:#819ab5;
            font-size:13px;
        }
        .breadcrumb-line a:hover{color:var(--cyan)}
        .hero-copy h1{
            max-width:720px;
            margin:16px 0 22px;
            color:#fff;
            font-size:clamp(42px,6vw,70px);
            font-weight:900;
            line-height:1.08;
        }
        .hero-copy > p{
            max-width:680px;
            margin:0;
            color:#bfd0e3;
            font-size:17px;
        }
        .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
        .hero-note{
            display:flex;
            flex-wrap:wrap;
            gap:18px;
            margin-top:28px;
            color:#9eb3ca;
            font-size:13px;
        }
        .hero-note span::before{
            content:"";
            display:inline-block;
            width:7px;
            height:7px;
            margin-right:8px;
            border-radius:50%;
            background:var(--lime);
            box-shadow:0 0 12px rgba(184,239,114,.6);
        }
        .card-stack{position:relative;min-height:420px}
        .stack-card{
            position:absolute;
            overflow:hidden;
            border:1px solid rgba(154,201,240,.2);
            border-radius:var(--radius);
            background:rgba(11,32,55,.84);
            box-shadow:var(--shadow);
            backdrop-filter:blur(16px);
        }
        .stack-card.main{
            inset:44px 48px 44px 22px;
            z-index:3;
            padding:29px;
        }
        .stack-card.side-top{
            top:0;
            right:0;
            width:210px;
            padding:18px;
            transform:rotate(3deg);
            z-index:4;
        }
        .stack-card.side-bottom{
            right:10px;
            bottom:0;
            width:230px;
            padding:20px;
            transform:rotate(-2deg);
            z-index:5;
        }
        .stack-card h2,.stack-card h3{margin:12px 0 8px;color:#fff}
        .stack-card h2{font-size:25px}
        .stack-card h3{font-size:16px}
        .stack-card p{margin:0;color:var(--muted);font-size:13px}
        .signal-list{display:grid;gap:12px;margin-top:24px}
        .signal-item{
            display:grid;
            grid-template-columns:34px 1fr auto;
            align-items:center;
            gap:11px;
            padding:12px;
            border-radius:12px;
            background:rgba(3,15,28,.46);
            border:1px solid var(--line);
        }
        .signal-icon{
            width:34px;
            height:34px;
            display:grid;
            place-items:center;
            border-radius:9px;
            background:rgba(85,216,255,.12);
            color:var(--cyan);
            font-weight:900;
        }
        .signal-item strong{display:block;color:#fff;font-size:13px}
        .signal-item small{display:block;color:#7f98b3;font-size:11px}
        .signal-item b{color:var(--lime);font-size:12px}
        .mini-number{color:var(--cyan);font-size:31px;font-weight:900;line-height:1}
        .mini-label{margin-top:7px!important}

        .issue-grid{
            display:grid;
            grid-template-columns:1.15fr .85fr;
            gap:24px;
            align-items:stretch;
        }
        .issue-panel{
            overflow:hidden;
            border:1px solid var(--line);
            border-radius:var(--radius);
            background:#0d2944;
            box-shadow:var(--shadow);
        }
        .issue-image{
            min-height:235px;
            background:
                linear-gradient(0deg,rgba(8,26,46,.96),rgba(8,26,46,.1)),
                url("https://images.unsplash.com/photo-1516321318423-f06f85e504b3?auto=format&fit=crop&w=1200&q=85") center/cover;
        }
        .issue-content{padding:30px}
        .issue-content h3{margin:0 0 12px;color:#fff;font-size:25px}
        .issue-content p{margin:0;color:var(--muted)}
        .issue-list{display:grid;gap:13px}
        .issue-row{
            display:grid;
            grid-template-columns:46px 1fr;
            gap:15px;
            padding:20px;
            border:1px solid var(--line);
            border-radius:15px;
            background:rgba(17,39,65,.72);
        }
        .issue-row span{
            width:46px;
            height:46px;
            display:grid;
            place-items:center;
            border-radius:13px;
            background:rgba(79,140,255,.14);
            color:var(--cyan);
            font-weight:900;
        }
        .issue-row h3{margin:0 0 4px;color:#fff;font-size:17px}
        .issue-row p{margin:0;color:var(--muted);font-size:13px}

        .solution-layout{
            display:grid;
            grid-template-columns:.84fr 1.16fr;
            gap:42px;
            align-items:start;
        }
        .sticky-copy{position:sticky;top:126px}
        .solution-board{
            display:grid;
            grid-template-columns:1fr 1fr;
            gap:15px;
        }
        .glass-card{
            height:100%;
            padding:28px;
            border:1px solid var(--line);
            border-radius:var(--radius);
            background:var(--panel);
            box-shadow:var(--shadow);
            transition:transform .25s,border-color .25s,box-shadow .25s;
        }
        .glass-card:hover{
            transform:translateY(-5px);
            border-color:rgba(85,216,255,.42);
            box-shadow:0 25px 65px rgba(0,0,0,.35);
        }
        .glass-card.wide{grid-column:1/-1}
        .card-index{
            display:block;
            margin-bottom:20px;
            color:rgba(85,216,255,.52);
            font-size:30px;
            font-weight:900;
        }
        .glass-card h3{margin:0 0 10px;color:#fff;font-size:20px}
        .glass-card p{margin:0;color:var(--muted);font-size:14px}
        .check-list{
            display:grid;
            grid-template-columns:repeat(2,1fr);
            gap:10px 18px;
            margin:18px 0 0;
            padding:0;
            list-style:none;
        }
        .check-list li{color:#b9cce0;font-size:13px}
        .check-list li::before{content:"✓";margin-right:8px;color:var(--lime);font-weight:900}

        .steps-track{
            display:grid;
            grid-template-columns:repeat(4,1fr);
            gap:0;
            border:1px solid var(--line);
            border-radius:var(--radius);
            background:rgba(11,32,55,.66);
            box-shadow:var(--shadow);
        }
        .step{
            position:relative;
            min-height:250px;
            padding:30px 25px;
            border-right:1px solid var(--line);
        }
        .step:last-child{border-right:0}
        .step-num{
            display:block;
            margin-bottom:44px;
            color:var(--cyan);
            font-size:13px;
            font-weight:800;
        }
        .step h3{margin:0 0 10px;color:#fff;font-size:19px}
        .step p{margin:0;color:var(--muted);font-size:13px}
        .step::after{
            content:"";
            position:absolute;
            top:36px;
            right:-5px;
            z-index:2;
            width:9px;
            height:9px;
            border-radius:50%;
            background:var(--cyan);
            box-shadow:0 0 14px rgba(85,216,255,.8);
        }
        .step:last-child::after{display:none}

        .evidence-layout{
            display:grid;
            grid-template-columns:1fr 1fr;
            gap:24px;
        }
        .score-panel{
            padding:36px;
            border:1px solid var(--line);
            border-radius:var(--radius);
            background:#0c263f;
        }
        .score-panel h3{margin:0 0 10px;color:#fff;font-size:24px}
        .score-panel > p{margin:0 0 28px;color:var(--muted)}
        .meter-list{display:grid;gap:22px}
        .meter-head{display:flex;justify-content:space-between;color:#c6d6e6;font-size:13px}
        .meter{
            height:8px;
            margin-top:8px;
            overflow:hidden;
            border-radius:999px;
            background:#061624;
        }
        .meter span{
            display:block;
            height:100%;
            border-radius:inherit;
            background:linear-gradient(90deg,var(--blue),var(--cyan));
        }
        .evidence-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
        .evidence-card{
            padding:23px;
            border:1px solid var(--line);
            border-radius:16px;
            background:rgba(17,39,65,.78);
        }
        .evidence-card strong{display:block;color:#fff;font-size:18px}
        .evidence-card span{display:block;margin-top:6px;color:var(--muted);font-size:13px}
        .evidence-card b{
            display:block;
            margin-bottom:12px;
            color:var(--lime);
            font-size:12px;
        }

        .reader-layout{
            display:grid;
            grid-template-columns:.78fr 1.22fr;
            gap:42px;
            align-items:center;
        }
        .quote-wall{display:grid;gap:15px}
        blockquote{
            margin:0;
            padding:24px 25px;
            border:1px solid var(--line);
            border-radius:16px;
            background:rgba(17,39,65,.64);
        }
        blockquote p{margin:0;color:#d7e4f1;font-size:15px}
        blockquote footer{
            margin-top:12px;
            padding:0;
            border:0;
            background:transparent;
            color:var(--muted);
            font-size:12px;
        }

        .audience-grid{
            display:grid;
            grid-template-columns:1.2fr .8fr .8fr;
            grid-template-rows:auto auto;
            gap:15px;
        }
        .audience-card{
            min-height:205px;
            padding:27px;
            border:1px solid var(--line);
            border-radius:17px;
            background:#0d2944;
            transition:transform .25s,border-color .25s;
        }
        .audience-card:hover{transform:translateY(-4px);border-color:rgba(85,216,255,.4)}
        .audience-card:first-child{grid-row:1/3;min-height:425px;background:#102b3b}
        .audience-card:nth-child(4){background:#172b42}
        .audience-card:nth-child(5){background:#10283c}
        .audience-card h3{margin:20px 0 9px;color:#fff;font-size:20px}
        .audience-card p{margin:0;color:var(--muted);font-size:14px}
        .audience-card:first-child h3{margin-top:120px;font-size:28px}
        .audience-icon{
            width:46px;
            height:46px;
            display:grid;
            place-items:center;
            border-radius:13px;
            background:rgba(85,216,255,.12);
            color:var(--cyan);
            font-weight:900;
        }

        .post-list{display:grid;border-top:1px solid var(--line)}
        .post-row{
            display:grid;
            grid-template-columns:110px 1fr 110px;
            gap:22px;
            align-items:center;
            padding:23px 0;
            border-bottom:1px solid var(--line);
            transition:padding .2s,background .2s;
        }
        .post-row:hover{padding-left:12px;background:rgba(85,216,255,.025)}
        .post-date{color:#7890aa;font-size:12px}
        .post-row h3{margin:0 0 4px;color:#fff;font-size:17px}
        .post-row p{margin:0;color:var(--muted);font-size:13px}
        .post-type{justify-self:end;color:var(--cyan);font-size:12px}
        .post-row:hover h3{color:var(--cyan)}

        .metrics-band{
            padding:54px 0;
            background:#061625;
            border-top:1px solid var(--line);
            border-bottom:1px solid var(--line);
        }
        .metrics-grid{
            display:grid;
            grid-template-columns:repeat(4,1fr);
            gap:1px;
            overflow:hidden;
            border:1px solid var(--line);
            border-radius:var(--radius);
            background:var(--line);
        }
        .metric{
            padding:31px 24px;
            background:#0a1f35;
            text-align:center;
        }
        .metric strong{
            display:block;
            color:#fff;
            font-size:34px;
            font-weight:900;
            line-height:1.2;
        }
        .metric span{display:block;margin-top:7px;color:var(--muted);font-size:12px}

        .contact-section{padding:88px 0}
        .contact-panel{
            position:relative;
            overflow:hidden;
            display:grid;
            grid-template-columns:1fr auto;
            align-items:center;
            gap:40px;
            padding:52px;
            border:1px solid rgba(85,216,255,.28);
            border-radius:var(--radius);
            background:
                linear-gradient(120deg,rgba(79,140,255,.16),rgba(85,216,255,.04)),
                #0b2239;
            box-shadow:0 20px 70px rgba(0,0,0,.32);
        }
        .contact-panel::after{
            content:"PG";
            position:absolute;
            right:260px;
            bottom:-64px;
            color:rgba(85,216,255,.045);
            font-size:190px;
            font-weight:900;
            line-height:1;
        }
        .contact-panel h2{
            position:relative;
            z-index:1;
            margin:12px 0 10px;
            color:#fff;
            font-size:clamp(28px,4vw,43px);
            font-weight:850;
        }
        .contact-panel p{position:relative;z-index:1;margin:0;color:#a8bdd3}
        .contact-actions{
            position:relative;
            z-index:2;
            display:flex;
            flex-wrap:wrap;
            gap:10px;
        }

        footer{
            padding:45px 0 25px;
            background:#050f1b;
            border-top:1px solid var(--line);
        }
        .footer-main{display:flex;justify-content:space-between;gap:30px;padding-bottom:35px}
        .footer-brand{max-width:330px;color:var(--muted);font-size:13px}
        .footer-brand .navbar-brand{margin-bottom:15px}
        .footer-links{display:flex;gap:65px}
        .footer-links h4{margin:5px 0 13px;color:#fff;font-size:14px}
        .footer-links a{display:block;margin:7px 0;color:var(--muted);font-size:13px}
        .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:#7189a2;
            font-size:12px;
        }

        @media (max-width:1024px){
            .hero-layout{grid-template-columns:1fr .9fr;gap:32px}
            .card-stack{min-height:390px}
            .solution-layout{grid-template-columns:1fr;gap:30px}
            .sticky-copy{position:static}
            .steps-track{grid-template-columns:1fr 1fr}
            .step:nth-child(2){border-right:0}
            .step:nth-child(-n+2){border-bottom:1px solid var(--line)}
            .step:nth-child(2)::after{display:none}
            .audience-grid{grid-template-columns:1fr 1fr}
            .audience-card:first-child{grid-row:auto;min-height:240px}
            .audience-card:first-child h3{margin-top:45px;font-size:24px}
            .metrics-grid{grid-template-columns:1fr 1fr}
        }

        @media (max-width:991.98px){
            .navbar-collapse{padding-top:12px}
            .navbar-nav{padding:8px 0}
            .nav-tools{align-items:stretch;padding:8px 0 4px}
            .search-box{flex:1}
            .category-hero{padding-top:64px}
            .hero-layout{grid-template-columns:1fr}
            .hero-copy{max-width:760px}
            .card-stack{max-width:600px;width:100%;margin:0 auto}
            .issue-grid,.evidence-layout,.reader-layout{grid-template-columns:1fr}
            .section-head.split{align-items:start;flex-direction:column}
        }

        @media (max-width:768px){
            section{padding:66px 0}
            .topbar .container{justify-content:center}
            .topbar span{display:none}
            .navbar{min-height:66px}
            .category-hero{min-height:auto;padding:58px 0 86px}
            .hero-copy h1{font-size:43px}
            .solution-board{grid-template-columns:1fr}
            .glass-card.wide{grid-column:auto}
            .check-list{grid-template-columns:1fr}
            .evidence-grid{grid-template-columns:1fr 1fr}
            .audience-grid{grid-template-columns:1fr}
            .audience-card,.audience-card:first-child{min-height:190px}
            .audience-card:first-child h3{margin-top:30px}
            .post-row{grid-template-columns:80px 1fr}
            .post-type{display:none}
            .contact-panel{grid-template-columns:1fr;padding:36px}
            .contact-panel::after{right:-20px}
            .footer-main{flex-direction:column}
            .footer-links{gap:45px}
            .copyright{flex-direction:column;gap:7px}
        }

        @media (max-width:520px){
            .container{padding-left:18px;padding-right:18px}
            .navbar-brand{font-size:18px}
            .logo-mark{width:35px;height:35px;flex-basis:35px}
            .nav-tools{display:grid;grid-template-columns:1fr}
            .hero-copy h1{font-size:36px}
            .hero-copy > p{font-size:15px}
            .hero-actions{display:grid;grid-template-columns:1fr}
            .hero-actions a{width:100%}
            .hero-note{display:grid;gap:8px}
            .card-stack{min-height:500px}
            .stack-card.main{inset:20px 0 120px}
            .stack-card.side-top{top:auto;right:auto;bottom:28px;left:0;width:49%;transform:none}
            .stack-card.side-bottom{right:0;bottom:10px;width:49%;transform:none}
            .signal-item{grid-template-columns:32px 1fr}
            .signal-item b{display:none}
            .section-head h2{font-size:30px}
            .issue-content,.score-panel{padding:24px}
            .steps-track{grid-template-columns:1fr}
            .step{min-height:auto;border-right:0;border-bottom:1px solid var(--line)!important}
            .step:last-child{border-bottom:0!important}
            .step::after{display:none}
            .step-num{margin-bottom:20px}
            .evidence-grid{grid-template-columns:1fr}
            .metrics-grid{grid-template-columns:1fr 1fr}
            .metric{padding:25px 12px}
            .metric strong{font-size:27px}
            .post-row{grid-template-columns:1fr;gap:6px}
            .contact-panel{padding:29px 23px}
            .contact-actions{display:grid;grid-template-columns:1fr}
            .footer-links{display:grid;grid-template-columns:1fr 1fr;gap:28px}
        }

/* 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}