/* roulang page: index */
:root{
            --bg:#081018;
            --bg-2:#0c1621;
            --bg-3:#111c29;
            --surface:#101b27;
            --surface-2:#152334;
            --surface-3:#1b2b3f;
            --line:rgba(180,208,230,.14);
            --line-strong:rgba(103,219,233,.36);
            --text:#ecf4ff;
            --muted:#9db0c3;
            --muted-2:#7f94aa;
            --primary:#36d7ea;
            --primary-2:#1fb4d1;
            --accent:#ff9d4d;
            --success:#5be7a6;
            --shadow:0 18px 50px rgba(0,0,0,.28);
            --shadow-soft:0 10px 30px rgba(0,0,0,.18);
            --radius:16px;
            --radius-sm:12px;
            --radius-lg:24px;
            --container:1240px;
            --gap:24px;
            --gap-sm:16px;
            --transition:all .22s ease;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;
            color:var(--text);
            background:
                radial-gradient(circle at 20% 15%, rgba(54,215,234,.12), transparent 26%),
                radial-gradient(circle at 80% 5%, rgba(255,157,77,.09), transparent 22%),
                linear-gradient(180deg, #071019 0%, #09131d 45%, #071019 100%);
            line-height:1.7;
            text-rendering:optimizeLegibility;
            -webkit-font-smoothing:antialiased;
            overflow-x:hidden;
        }
        body::before{
            content:"";
            position:fixed;
            inset:0;
            pointer-events:none;
            background:
                linear-gradient(rgba(255,255,255,.02) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,.02) 1px, transparent 1px);
            background-size:100% 42px, 42px 100%;
            mask-image:linear-gradient(180deg, rgba(0,0,0,.7), rgba(0,0,0,.25) 55%, rgba(0,0,0,.05));
            opacity:.55;
            z-index:-1;
        }
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input,textarea{font:inherit}
        ::selection{background:rgba(54,215,234,.24);color:#fff}
        :focus-visible{
            outline:2px solid rgba(54,215,234,.88);
            outline-offset:3px;
        }
        .container{
            width:min(100% - 32px, var(--container));
            margin:0 auto;
        }
        .topbar{
            position:relative;
            z-index:30;
            border-bottom:1px solid rgba(255,255,255,.06);
            background:rgba(7,16,24,.92);
            backdrop-filter:blur(14px);
        }
        .ticker{
            display:flex;
            align-items:center;
            gap:12px;
            padding:10px 0;
            overflow:hidden;
        }
        .ticker-label{
            flex:none;
            display:inline-flex;
            align-items:center;
            gap:8px;
            padding:6px 10px;
            border-radius:999px;
            background:rgba(54,215,234,.12);
            color:#ccfaff;
            border:1px solid rgba(54,215,234,.2);
            font-size:13px;
            font-weight:700;
            white-space:nowrap;
        }
        .ticker-label i{
            width:8px;height:8px;border-radius:50%;
            background:var(--accent);
            box-shadow:0 0 0 6px rgba(255,157,77,.12);
            display:inline-block;
        }
        .ticker-track{
            flex:1;
            overflow:hidden;
            position:relative;
            mask-image:linear-gradient(90deg, transparent, #000 7%, #000 93%, transparent);
        }
        .ticker-move{
            display:flex;
            gap:28px;
            width:max-content;
            animation:marquee 28s linear infinite;
        }
        .ticker-item{
            display:inline-flex;
            align-items:center;
            gap:10px;
            color:var(--muted);
            font-size:13px;
            white-space:nowrap;
        }
        .ticker-dot{
            width:6px;height:6px;border-radius:50%;
            background:var(--primary);
            box-shadow:0 0 0 5px rgba(54,215,234,.1);
        }
        @keyframes marquee{
            from{transform:translateX(0)}
            to{transform:translateX(-50%)}
        }
        .site-header{
            position:sticky;
            top:0;
            z-index:40;
            background:rgba(8,16,24,.78);
            backdrop-filter:blur(16px);
            border-bottom:1px solid rgba(255,255,255,.05);
        }
        .header-inner{
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:18px;
            padding:16px 0;
        }
        .brand{
            display:flex;
            align-items:center;
            gap:12px;
            min-width:0;
        }
        .brand-mark{
            width:42px;height:42px;
            border-radius:14px;
            display:grid;
            place-items:center;
            background:linear-gradient(135deg, rgba(54,215,234,.2), rgba(255,157,77,.22));
            border:1px solid rgba(54,215,234,.22);
            box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
            color:#fff;
            font-weight:800;
            letter-spacing:.5px;
        }
        .brand-copy{
            min-width:0;
        }
        .brand-copy strong{
            display:block;
            font-size:16px;
            font-weight:800;
            line-height:1.2;
            letter-spacing:.2px;
            white-space:nowrap;
            overflow:hidden;
            text-overflow:ellipsis;
        }
        .brand-copy span{
            display:block;
            color:var(--muted);
            font-size:12px;
            margin-top:2px;
        }
        .nav-toggle{
            display:none;
            align-items:center;
            justify-content:center;
            width:44px;height:44px;
            border-radius:12px;
            border:1px solid rgba(255,255,255,.1);
            background:rgba(255,255,255,.03);
            color:var(--text);
            cursor:pointer;
            transition:var(--transition);
        }
        .nav-toggle:hover{
            border-color:rgba(54,215,234,.36);
            background:rgba(54,215,234,.08);
        }
        .nav{
            display:flex;
            align-items:center;
            gap:10px;
        }
        .nav-list{
            display:flex;
            align-items:center;
            gap:8px;
            list-style:none;
            padding:0;
            margin:0;
        }
        .nav-list a{
            display:inline-flex;
            align-items:center;
            gap:8px;
            padding:11px 14px;
            border-radius:999px;
            font-size:14px;
            color:var(--muted);
            border:1px solid transparent;
            transition:var(--transition);
            white-space:nowrap;
        }
        .nav-list a:hover{
            color:#fff;
            background:rgba(255,255,255,.04);
            border-color:rgba(255,255,255,.08);
            transform:translateY(-1px);
        }
        .nav-list a.active{
            color:#fff;
            background:linear-gradient(135deg, rgba(54,215,234,.18), rgba(54,215,234,.08));
            border-color:rgba(54,215,234,.24);
            box-shadow:0 10px 24px rgba(54,215,234,.1);
        }
        .hero{
            position:relative;
            padding:30px 0 22px;
        }
        .hero-panel{
            position:relative;
            overflow:hidden;
            border-radius:28px;
            border:1px solid rgba(255,255,255,.08);
            background:
                linear-gradient(140deg, rgba(5,10,16,.86), rgba(10,18,28,.84)),
                url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            box-shadow:var(--shadow);
        }
        .hero-panel::before{
            content:"";
            position:absolute;
            inset:0;
            background:
                radial-gradient(circle at 20% 20%, rgba(54,215,234,.18), transparent 28%),
                radial-gradient(circle at 86% 12%, rgba(255,157,77,.16), transparent 18%),
                linear-gradient(180deg, rgba(8,16,24,.08), rgba(8,16,24,.6));
            pointer-events:none;
        }
        .hero-inner{
            position:relative;
            display:grid;
            grid-template-columns:1.1fr .9fr;
            gap:28px;
            padding:40px;
            align-items:center;
        }
        .hero-kicker{
            display:inline-flex;
            align-items:center;
            gap:8px;
            margin-bottom:16px;
            padding:7px 12px;
            border-radius:999px;
            border:1px solid rgba(54,215,234,.22);
            background:rgba(54,215,234,.1);
            color:#c9f8ff;
            font-size:13px;
            font-weight:700;
            letter-spacing:.2px;
        }
        .hero-kicker .pulse{
            width:8px;height:8px;border-radius:50%;
            background:var(--success);
            box-shadow:0 0 0 6px rgba(91,231,166,.14);
        }
        .hero h1{
            margin:0;
            font-size:clamp(30px, 4vw, 58px);
            line-height:1.08;
            letter-spacing:-.6px;
            max-width:12ch;
        }
        .hero p{
            margin:18px 0 0;
            color:#c5d3e0;
            font-size:16px;
            max-width:62ch;
        }
        .hero-actions{
            display:flex;
            flex-wrap:wrap;
            gap:12px;
            margin-top:26px;
        }
        .btn{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            gap:8px;
            min-height:46px;
            padding:0 18px;
            border-radius:14px;
            border:1px solid transparent;
            cursor:pointer;
            transition:var(--transition);
            font-weight:700;
            letter-spacing:.1px;
            box-shadow:var(--shadow-soft);
        }
        .btn:hover{
            transform:translateY(-1px);
        }
        .btn-primary{
            background:linear-gradient(135deg, var(--primary), var(--primary-2));
            color:#041018;
            border-color:rgba(54,215,234,.32);
        }
        .btn-primary:hover{
            box-shadow:0 16px 34px rgba(54,215,234,.18);
        }
        .btn-secondary{
            background:rgba(255,255,255,.04);
            color:var(--text);
            border-color:rgba(255,255,255,.1);
        }
        .btn-secondary:hover{
            border-color:rgba(54,215,234,.28);
            background:rgba(54,215,234,.08);
        }
        .hero-meta{
            display:flex;
            flex-wrap:wrap;
            gap:12px;
            margin-top:18px;
        }
        .meta-pill{
            display:inline-flex;
            align-items:center;
            gap:8px;
            padding:8px 12px;
            border-radius:999px;
            color:#d6e5f5;
            background:rgba(255,255,255,.04);
            border:1px solid rgba(255,255,255,.08);
            font-size:13px;
        }
        .meta-pill b{
            color:#fff;
        }
        .hero-visual{
            position:relative;
            display:grid;
            gap:16px;
        }
        .hero-card{
            position:relative;
            border-radius:24px;
            overflow:hidden;
            background:var(--surface);
            border:1px solid rgba(255,255,255,.08);
            box-shadow:var(--shadow-soft);
        }
        .hero-card.cover{
            min-height:340px;
        }
        .hero-card.cover img{
            width:100%;
            height:100%;
            object-fit:cover;
            min-height:340px;
            filter:saturate(1.02) contrast(1.03);
        }
        .hero-card.cover::after{
            content:"";
            position:absolute;
            inset:0;
            background:linear-gradient(180deg, rgba(8,16,24,.1), rgba(8,16,24,.82));
        }
        .hero-overlay{
            position:absolute;
            inset:auto 18px 18px 18px;
            z-index:2;
        }
        .overlay-title{
            font-size:18px;
            font-weight:800;
            margin:0;
        }
        .overlay-desc{
            margin:6px 0 0;
            color:#d2deea;
            font-size:13px;
            max-width:32ch;
        }
        .hero-grid-mini{
            display:grid;
            grid-template-columns:repeat(3, 1fr);
            gap:12px;
        }
        .mini-stat{
            padding:14px 14px 15px;
            border-radius:18px;
            background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
            border:1px solid rgba(255,255,255,.08);
        }
        .mini-stat span{
            display:block;
            color:var(--muted);
            font-size:12px;
        }
        .mini-stat strong{
            display:block;
            margin-top:6px;
            font-size:18px;
            line-height:1.1;
        }
        .section{
            padding:26px 0;
        }
        .section-head{
            display:flex;
            align-items:flex-end;
            justify-content:space-between;
            gap:18px;
            margin-bottom:18px;
        }
        .section-head h2{
            margin:0;
            font-size:clamp(22px, 2.2vw, 32px);
            line-height:1.15;
            letter-spacing:-.4px;
        }
        .section-head p{
            margin:0;
            color:var(--muted);
            max-width:62ch;
            font-size:14px;
        }
        .section-link{
            color:#d9faff;
            font-size:14px;
            display:inline-flex;
            align-items:center;
            gap:8px;
            white-space:nowrap;
        }
        .section-link:hover{
            color:#fff;
        }
        .quick-grid{
            display:grid;
            grid-template-columns:repeat(4, 1fr);
            gap:16px;
        }
        .topic-card{
            overflow:hidden;
            border-radius:22px;
            background:var(--surface);
            border:1px solid rgba(255,255,255,.08);
            box-shadow:var(--shadow-soft);
            transition:var(--transition);
            min-height:100%;
        }
        .topic-card:hover{
            transform:translateY(-3px);
            border-color:rgba(54,215,234,.26);
            box-shadow:0 16px 36px rgba(0,0,0,.24);
        }
        .topic-thumb{
            position:relative;
            aspect-ratio:16/10;
            overflow:hidden;
        }
        .topic-thumb img{
            width:100%;
            height:100%;
            object-fit:cover;
            transition:transform .45s ease;
        }
        .topic-card:hover .topic-thumb img{
            transform:scale(1.03);
        }
        .topic-thumb::after{
            content:"";
            position:absolute;
            inset:0;
            background:linear-gradient(180deg, rgba(8,16,24,.06), rgba(8,16,24,.68));
        }
        .topic-body{
            padding:16px 16px 18px;
        }
        .tag{
            display:inline-flex;
            align-items:center;
            gap:6px;
            padding:6px 10px;
            border-radius:999px;
            font-size:12px;
            line-height:1;
            background:rgba(54,215,234,.11);
            color:#c8f8ff;
            border:1px solid rgba(54,215,234,.18);
        }
        .tag.orange{
            background:rgba(255,157,77,.12);
            color:#ffe0c3;
            border-color:rgba(255,157,77,.18);
        }
        .topic-body h3{
            margin:12px 0 8px;
            font-size:18px;
            line-height:1.28;
        }
        .topic-body p{
            margin:0;
            color:var(--muted);
            font-size:14px;
            line-height:1.7;
        }
        .data-strip{
            display:grid;
            grid-template-columns:repeat(5, 1fr);
            gap:14px;
        }
        .data-card{
            padding:18px 16px;
            border-radius:18px;
            background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
            border:1px solid rgba(255,255,255,.08);
            box-shadow:var(--shadow-soft);
            min-height:112px;
        }
        .data-card span{
            display:block;
            color:var(--muted);
            font-size:13px;
        }
        .data-card strong{
            display:block;
            margin-top:10px;
            font-size:24px;
            line-height:1.1;
        }
        .data-card small{
            display:block;
            margin-top:8px;
            color:var(--muted-2);
            font-size:12px;
        }
        .feature-grid{
            display:grid;
            grid-template-columns:1.35fr .95fr;
            gap:18px;
        }
        .feature-card{
            position:relative;
            overflow:hidden;
            border-radius:26px;
            background:var(--surface);
            border:1px solid rgba(255,255,255,.08);
            box-shadow:var(--shadow-soft);
        }
        .feature-card.large{
            min-height:100%;
        }
        .feature-card .feature-media{
            position:relative;
            min-height:320px;
        }
        .feature-card .feature-media img{
            width:100%;
            height:100%;
            object-fit:cover;
            min-height:320px;
        }
        .feature-card .feature-media::after{
            content:"";
            position:absolute;
            inset:0;
            background:linear-gradient(180deg, rgba(8,16,24,.16), rgba(8,16,24,.88));
        }
        .feature-copy{
            position:absolute;
            inset:auto 0 0 0;
            z-index:2;
            padding:22px;
        }
        .feature-copy h3{
            margin:12px 0 10px;
            font-size:22px;
            line-height:1.2;
        }
        .feature-copy p{
            margin:0;
            color:#cbd9e6;
            max-width:44ch;
            font-size:14px;
        }
        .feature-list{
            display:grid;
            gap:14px;
        }
        .list-card{
            display:grid;
            grid-template-columns:110px 1fr;
            gap:14px;
            align-items:stretch;
            padding:12px;
            border-radius:20px;
            background:var(--surface);
            border:1px solid rgba(255,255,255,.08);
            box-shadow:var(--shadow-soft);
            transition:var(--transition);
        }
        .list-card:hover{
            transform:translateY(-2px);
            border-color:rgba(54,215,234,.26);
        }
        .list-media{
            overflow:hidden;
            border-radius:16px;
            min-height:100%;
            position:relative;
        }
        .list-media img{
            width:100%;
            height:100%;
            object-fit:cover;
            min-height:112px;
        }
        .list-media::after{
            content:"";
            position:absolute;
            inset:0;
            background:linear-gradient(180deg, rgba(8,16,24,.08), rgba(8,16,24,.34));
        }
        .list-body{
            padding:2px 4px 2px 0;
            display:flex;
            flex-direction:column;
            justify-content:space-between;
            gap:10px;
        }
        .list-body h4{
            margin:0;
            font-size:16px;
            line-height:1.35;
        }
        .list-body p{
            margin:0;
            color:var(--muted);
            font-size:13px;
            line-height:1.7;
        }
        .list-meta{
            display:flex;
            flex-wrap:wrap;
            align-items:center;
            gap:10px;
            color:var(--muted-2);
            font-size:12px;
        }
        .list-meta .badge{
            display:inline-flex;
            align-items:center;
            gap:6px;
            padding:5px 9px;
            border-radius:999px;
            background:rgba(255,255,255,.04);
            border:1px solid rgba(255,255,255,.08);
            color:#d7e5f0;
        }
        .mixed-grid{
            display:grid;
            grid-template-columns:1.15fr .85fr;
            gap:18px;
            align-items:start;
        }
        .analysis-lead{
            padding:18px;
            border-radius:24px;
            background:var(--surface);
            border:1px solid rgba(255,255,255,.08);
            box-shadow:var(--shadow-soft);
            overflow:hidden;
        }
        .analysis-lead .media{
            position:relative;
            border-radius:20px;
            overflow:hidden;
            aspect-ratio:16/9;
        }
        .analysis-lead .media img{
            width:100%;
            height:100%;
            object-fit:cover;
        }
        .analysis-lead .media::after{
            content:"";
            position:absolute;
            inset:0;
            background:linear-gradient(180deg, rgba(8,16,24,.05), rgba(8,16,24,.76));
        }
        .analysis-lead .copy{
            padding-top:18px;
        }
        .analysis-lead h3{
            margin:0 0 10px;
            font-size:24px;
            line-height:1.24;
        }
        .analysis-lead p{
            margin:0;
            color:var(--muted);
            font-size:14px;
        }
        .analysis-list{
            display:grid;
            gap:14px;
        }
        .analysis-item{
            padding:16px 16px 17px;
            border-radius:20px;
            background:linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.03));
            border:1px solid rgba(255,255,255,.08);
            box-shadow:var(--shadow-soft);
        }
        .analysis-item h4{
            margin:0 0 8px;
            font-size:17px;
            line-height:1.3;
        }
        .analysis-item p{
            margin:0;
            color:var(--muted);
            font-size:13px;
        }
        .analysis-item .item-foot{
            margin-top:12px;
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:10px;
            color:var(--muted-2);
            font-size:12px;
        }
        .faq-wrap{
            display:grid;
            gap:12px;
        }
        details.faq-item{
            border-radius:18px;
            background:var(--surface);
            border:1px solid rgba(255,255,255,.08);
            box-shadow:var(--shadow-soft);
            overflow:hidden;
            transition:var(--transition);
        }
        details.faq-item[open]{
            border-color:rgba(54,215,234,.24);
        }
        details.faq-item summary{
            list-style:none;
            cursor:pointer;
            padding:18px 20px;
            display:flex;
            align-items:center;
            justify-content:space-between;
            gap:14px;
            font-weight:700;
            font-size:16px;
            outline:none;
        }
        details.faq-item summary::-webkit-details-marker{display:none}
        .faq-icon{
            width:34px;height:34px;
            border-radius:12px;
            display:grid;
            place-items:center;
            flex:none;
            background:rgba(54,215,234,.1);
            border:1px solid rgba(54,215,234,.18);
            color:#ccf8ff;
            transition:var(--transition);
        }
        details.faq-item[open] .faq-icon{
            background:rgba(255,157,77,.12);
            border-color:rgba(255,157,77,.2);
            color:#ffe3c8;
            transform:rotate(45deg);
        }
        .faq-content{
            padding:0 20px 20px;
            color:var(--muted);
            font-size:14px;
            line-height:1.8;
        }
        .cta{
            padding:28px 0 14px;
        }
        .cta-box{
            position:relative;
            overflow:hidden;
            border-radius:28px;
            padding:28px;
            background:
                linear-gradient(135deg, rgba(54,215,234,.14), rgba(255,157,77,.1)),
                linear-gradient(180deg, rgba(255,255,255,.05), rgba(255,255,255,.02));
            border:1px solid rgba(255,255,255,.1);
            box-shadow:var(--shadow);
        }
        .cta-box::after{
            content:"";
            position:absolute;
            inset:auto -40px -60px auto;
            width:240px;
            height:240px;
            border-radius:50%;
            background:radial-gradient(circle, rgba(54,215,234,.22), transparent 68%);
            filter:blur(6px);
            pointer-events:none;
        }
        .cta-inner{
            position:relative;
            display:grid;
            grid-template-columns:1fr auto;
            gap:18px;
            align-items:center;
        }
        .cta h2{
            margin:0;
            font-size:clamp(24px, 2.5vw, 36px);
            line-height:1.15;
        }
        .cta p{
            margin:10px 0 0;
            color:#d2deea;
            max-width:64ch;
        }
        .cta-actions{
            display:flex;
            flex-wrap:wrap;
            justify-content:flex-end;
            gap:12px;
        }
        .cta-note{
            margin-top:16px;
            color:#c8d6e4;
            font-size:12px;
        }
        .site-footer{
            margin-top:28px;
            padding:28px 0 22px;
            border-top:1px solid rgba(255,255,255,.07);
            background:rgba(5,10,16,.88);
        }
        .footer-grid{
            display:grid;
            grid-template-columns:1.1fr .8fr .8fr 1fr;
            gap:18px;
        }
        .footer-brand h3{
            margin:0;
            font-size:20px;
        }
        .footer-brand p{
            margin:10px 0 0;
            color:var(--muted);
            font-size:14px;
            max-width:34ch;
        }
        .footer-col h4{
            margin:2px 0 14px;
            font-size:15px;
        }
        .footer-col a,
        .footer-col span{
            display:block;
            color:var(--muted);
            font-size:13px;
            margin-bottom:10px;
            transition:var(--transition);
        }
        .footer-col a:hover{
            color:#fff;
        }
        .footer-bottom{
            margin-top:22px;
            padding-top:16px;
            border-top:1px solid rgba(255,255,255,.07);
            color:var(--muted-2);
            font-size:12px;
            display:flex;
            flex-wrap:wrap;
            justify-content:space-between;
            gap:10px;
        }
        .note-inline{
            display:inline-flex;
            align-items:center;
            gap:6px;
            color:#dfe9f4;
        }
        .section-anchor{
            scroll-margin-top:110px;
        }
        @media (max-width: 1120px){
            .quick-grid,
            .data-strip{grid-template-columns:repeat(2, 1fr);}
            .feature-grid,
            .mixed-grid,
            .cta-inner,
            .footer-grid{
                grid-template-columns:1fr;
            }
            .hero-inner{
                grid-template-columns:1fr;
            }
            .hero h1{
                max-width:14ch;
            }
            .hero-card.cover{
                min-height:300px;
            }
            .hero-grid-mini{
                grid-template-columns:repeat(3, 1fr);
            }
        }
        @media (max-width: 920px){
            .nav-toggle{display:inline-flex}
            .nav{
                position:absolute;
                left:16px;
                right:16px;
                top:calc(100% + 12px);
                padding:14px;
                border-radius:20px;
                background:rgba(9,18,26,.96);
                border:1px solid rgba(255,255,255,.08);
                box-shadow:var(--shadow);
                display:none;
            }
            .nav.open{display:block}
            .nav-list{
                flex-direction:column;
                align-items:stretch;
            }
            .nav-list a{
                justify-content:space-between;
            }
            .section-head{
                flex-direction:column;
                align-items:flex-start;
            }
            .hero-inner{
                padding:28px;
            }
            .quick-grid{grid-template-columns:1fr 1fr}
            .hero-grid-mini{grid-template-columns:1fr 1fr 1fr}
        }
        @media (max-width: 768px){
            .container{width:min(100% - 24px, var(--container));}
            .header-inner{padding:12px 0}
            .ticker{padding:8px 0}
            .hero{padding-top:18px}
            .hero-inner{padding:22px}
            .hero h1{font-size:clamp(28px, 8vw, 42px)}
            .hero p{font-size:15px}
            .hero-card.cover{min-height:260px}
            .hero-grid-mini,
            .quick-grid,
            .data-strip{
                grid-template-columns:1fr;
            }
            .list-card{
                grid-template-columns:1fr;
            }
            .list-media{aspect-ratio:16/9}
            .analysis-lead h3{font-size:22px}
            .cta-box{padding:22px}
            .cta-actions{justify-content:flex-start}
            .site-footer{padding-top:22px}
        }
        @media (max-width: 520px){
            .brand-mark{width:38px;height:38px;border-radius:12px}
            .brand-copy strong{font-size:15px}
            .brand-copy span{font-size:11px}
            .hero-actions,
            .cta-actions{
                flex-direction:column;
                width:100%;
            }
            .btn{
                width:100%;
                min-height:48px;
            }
            .hero-kicker{
                font-size:12px;
            }
            .topic-body h3,
            .analysis-item h4,
            .list-body h4{
                font-size:16px;
            }
            details.faq-item summary{
                padding:16px;
                font-size:15px;
            }
            .faq-content{padding:0 16px 16px}
            .footer-bottom{
                flex-direction:column;
                align-items:flex-start;
            }
        }

/* roulang page: category1 */
:root {
            --bg: #090c0f;
            --bg-soft: #10161b;
            --bg-card: #141b22;
            --bg-card-2: #18212a;
            --text: #f2f7fa;
            --muted: #9aa8b4;
            --muted-2: #71808d;
            --line: rgba(160, 184, 198, .16);
            --line-strong: rgba(36, 222, 232, .42);
            --cyan: #24dee8;
            --cyan-2: #75f7ff;
            --orange: #ff9f43;
            --green: #6ee7a8;
            --red: #ff6b6b;
            --shadow: 0 18px 48px rgba(0, 0, 0, .32);
            --shadow-hover: 0 22px 56px rgba(0, 0, 0, .42);
            --radius: 16px;
            --radius-sm: 10px;
            --max: 1180px;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", Arial, sans-serif;
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: var(--font);
            color: var(--text);
            line-height: 1.72;
            background:
                radial-gradient(circle at 18% 4%, rgba(36, 222, 232, .16), transparent 32%),
                radial-gradient(circle at 84% 10%, rgba(255, 159, 67, .12), transparent 30%),
                linear-gradient(180deg, #070a0d 0%, #0a0f13 40%, #080b0e 100%);
            min-height: 100vh;
            overflow-x: hidden;
        }

        body::before {
            content: "";
            position: fixed;
            inset: 0;
            pointer-events: none;
            z-index: -1;
            background-image:
                linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px),
                linear-gradient(90deg, rgba(255,255,255,.03) 1px, transparent 1px);
            background-size: 46px 46px;
            mask-image: linear-gradient(to bottom, rgba(0,0,0,.8), transparent 78%);
        }

        a {
            color: inherit;
            text-decoration: none;
        }

        img {
            display: block;
            max-width: 100%;
        }

        button, input, textarea, select {
            font: inherit;
        }

        button {
            border: 0;
            cursor: pointer;
        }

        .container {
            width: min(var(--max), calc(100% - 40px));
            margin: 0 auto;
        }

        .top-strip {
            border-bottom: 1px solid var(--line);
            background: rgba(8, 11, 14, .86);
            backdrop-filter: blur(14px);
        }

        .strip-inner {
            min-height: 42px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 18px;
            color: var(--muted);
            font-size: 13px;
        }

        .strip-live {
            display: inline-flex;
            align-items: center;
            gap: 9px;
            color: var(--text);
            white-space: nowrap;
        }

        .live-dot {
            width: 8px;
            height: 8px;
            border-radius: 999px;
            background: var(--cyan);
            box-shadow: 0 0 0 6px rgba(36, 222, 232, .12);
        }

        .strip-note {
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }

        .site-header {
            position: sticky;
            top: 0;
            z-index: 50;
            border-bottom: 1px solid var(--line);
            background: rgba(9, 12, 15, .78);
            backdrop-filter: blur(18px);
        }

        .header-inner {
            height: 76px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .brand {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            min-width: 0;
        }

        .brand-mark {
            width: 42px;
            height: 42px;
            display: grid;
            place-items: center;
            border-radius: 13px;
            color: #031012;
            font-weight: 900;
            font-size: 22px;
            background: linear-gradient(135deg, var(--cyan), var(--orange));
            box-shadow: 0 12px 30px rgba(36, 222, 232, .18);
        }

        .brand-copy {
            display: grid;
            gap: 1px;
        }

        .brand-copy strong {
            font-size: 17px;
            letter-spacing: .2px;
            line-height: 1.25;
        }

        .brand-copy span {
            color: var(--muted);
            font-size: 12px;
            line-height: 1.25;
        }

        .nav-toggle {
            display: none;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            color: var(--text);
            background: var(--bg-card);
            border: 1px solid var(--line);
        }

        .nav-list {
            display: flex;
            align-items: center;
            gap: 8px;
            list-style: none;
        }

        .nav-list a {
            display: inline-flex;
            align-items: center;
            height: 40px;
            padding: 0 14px;
            border-radius: 999px;
            color: var(--muted);
            font-size: 14px;
            border: 1px solid transparent;
            transition: .22s ease;
        }

        .nav-list a:hover,
        .nav-list a:focus {
            color: var(--text);
            border-color: var(--line-strong);
            background: rgba(36, 222, 232, .08);
            outline: none;
        }

        .nav-list a.active {
            color: #061113;
            background: var(--cyan);
            border-color: var(--cyan);
            font-weight: 800;
        }

        .breadcrumb-wrap {
            padding: 26px 0 0;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            color: var(--muted);
            font-size: 13px;
        }

        .breadcrumb a {
            color: var(--cyan-2);
        }

        .breadcrumb span {
            color: var(--muted-2);
        }

        .category-hero {
            margin-top: 18px;
            border: 1px solid var(--line);
            border-radius: 24px;
            overflow: hidden;
            min-height: 430px;
            position: relative;
            background:
                linear-gradient(90deg, rgba(7, 10, 13, .96) 0%, rgba(7, 10, 13, .78) 46%, rgba(7, 10, 13, .42) 100%),
                url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
            box-shadow: var(--shadow);
        }

        .category-hero::after {
            content: "";
            position: absolute;
            inset: auto 0 0;
            height: 7px;
            background: linear-gradient(90deg, var(--cyan), transparent 32%, var(--orange) 72%, transparent);
            opacity: .88;
        }

        .hero-content {
            position: relative;
            z-index: 1;
            width: min(760px, 100%);
            padding: 58px 56px;
        }

        .eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            padding: 8px 12px;
            border-radius: 999px;
            color: var(--cyan-2);
            border: 1px solid rgba(36, 222, 232, .34);
            background: rgba(36, 222, 232, .08);
            font-size: 13px;
            font-weight: 700;
            margin-bottom: 18px;
        }

        h1 {
            font-size: clamp(34px, 5vw, 58px);
            line-height: 1.08;
            letter-spacing: -1.2px;
            max-width: 720px;
        }

        .hero-lead {
            margin-top: 20px;
            color: #c8d4dc;
            font-size: 17px;
            max-width: 680px;
        }

        .hero-actions {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 30px;
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 9px;
            min-height: 46px;
            padding: 0 18px;
            border-radius: 999px;
            border: 1px solid transparent;
            font-weight: 800;
            transition: transform .22s ease, box-shadow .22s ease, border-color .22s ease, background .22s ease;
        }

        .btn-primary {
            color: #051014;
            background: linear-gradient(135deg, var(--cyan), #8dfbff);
            box-shadow: 0 12px 32px rgba(36, 222, 232, .22);
        }

        .btn-secondary {
            color: var(--text);
            background: rgba(255,255,255,.04);
            border-color: var(--line);
        }

        .btn:hover,
        .btn:focus {
            transform: translateY(-2px);
            outline: none;
        }

        .btn-primary:hover {
            box-shadow: 0 16px 40px rgba(36, 222, 232, .32);
        }

        .btn-secondary:hover {
            border-color: var(--line-strong);
            background: rgba(36, 222, 232, .08);
        }

        .hero-panel {
            margin-top: 30px;
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 12px;
            max-width: 680px;
        }

        .mini-stat {
            padding: 15px;
            border-radius: 14px;
            background: rgba(20, 27, 34, .82);
            border: 1px solid var(--line);
        }

        .mini-stat strong {
            display: block;
            font-size: 22px;
            line-height: 1.1;
            color: var(--text);
        }

        .mini-stat span {
            display: block;
            margin-top: 6px;
            color: var(--muted);
            font-size: 12px;
        }

        main {
            padding: 66px 0 0;
        }

        .section {
            margin-bottom: 76px;
        }

        .section-head {
            display: flex;
            justify-content: space-between;
            align-items: end;
            gap: 24px;
            margin-bottom: 24px;
        }

        .section-kicker {
            color: var(--cyan);
            font-size: 13px;
            font-weight: 900;
            letter-spacing: .14em;
            text-transform: uppercase;
            margin-bottom: 6px;
        }

        .section-title {
            font-size: clamp(26px, 3vw, 38px);
            line-height: 1.18;
            letter-spacing: -.4px;
        }

        .section-desc {
            max-width: 540px;
            color: var(--muted);
            font-size: 15px;
        }

        .filter-bar {
            padding: 14px;
            border: 1px solid var(--line);
            border-radius: var(--radius);
            background: rgba(16, 22, 27, .74);
            display: flex;
            align-items: center;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 28px;
        }

        .filter-label {
            color: var(--muted);
            font-size: 13px;
            padding: 0 6px;
        }

        .chip {
            display: inline-flex;
            align-items: center;
            min-height: 34px;
            padding: 0 12px;
            border-radius: 999px;
            border: 1px solid var(--line);
            color: #c6d1d8;
            background: rgba(255,255,255,.03);
            font-size: 13px;
            transition: .22s ease;
        }

        .chip:hover,
        .chip:focus,
        .chip.active {
            color: #061113;
            background: var(--cyan);
            border-color: var(--cyan);
            outline: none;
        }

        .spotlight-grid {
            display: grid;
            grid-template-columns: 1.1fr .9fr;
            gap: 22px;
        }

        .feature-card {
            border-radius: 22px;
            overflow: hidden;
            border: 1px solid var(--line);
            background: var(--bg-card);
            box-shadow: var(--shadow);
            min-height: 100%;
            transition: .22s ease;
        }

        .feature-card:hover,
        .topic-card:hover,
        .data-card:hover,
        .flow-step:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(36, 222, 232, .34);
        }

        .feature-media {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
        }

        .feature-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transform: scale(1.02);
        }

        .media-badge {
            position: absolute;
            left: 16px;
            top: 16px;
            padding: 7px 10px;
            border-radius: 999px;
            background: rgba(5, 10, 12, .72);
            border: 1px solid rgba(255,255,255,.16);
            color: var(--cyan-2);
            font-size: 12px;
            font-weight: 800;
            backdrop-filter: blur(10px);
        }

        .feature-body {
            padding: 24px;
        }

        .feature-body h2,
        .topic-card h3,
        .flow-step h3,
        .notice-card h3 {
            font-size: 22px;
            line-height: 1.28;
            margin-bottom: 10px;
        }

        .feature-body p,
        .topic-card p,
        .flow-step p,
        .notice-card p {
            color: var(--muted);
            font-size: 15px;
        }

        .meta-row {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px 10px;
            margin-top: 18px;
            color: var(--muted-2);
            font-size: 13px;
        }

        .tag {
            display: inline-flex;
            align-items: center;
            height: 25px;
            padding: 0 9px;
            border-radius: 999px;
            background: rgba(36, 222, 232, .1);
            color: var(--cyan-2);
            border: 1px solid rgba(36, 222, 232, .2);
            font-size: 12px;
            font-weight: 700;
        }

        .side-stack {
            display: grid;
            gap: 16px;
        }

        .topic-card {
            display: grid;
            grid-template-columns: 150px 1fr;
            gap: 16px;
            padding: 14px;
            border-radius: 18px;
            border: 1px solid var(--line);
            background: rgba(20, 27, 34, .86);
            transition: .22s ease;
        }

        .topic-card img {
            width: 100%;
            height: 132px;
            object-fit: cover;
            border-radius: 13px;
        }

        .topic-card.compact {
            grid-template-columns: 1fr;
        }

        .topic-card.compact img {
            height: 188px;
        }

        .topic-card h3 {
            font-size: 18px;
        }

        .topic-card p {
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .data-strip {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .data-card {
            border: 1px solid var(--line);
            border-radius: var(--radius);
            background: linear-gradient(180deg, rgba(24, 33, 42, .94), rgba(14, 20, 25, .94));
            padding: 22px;
            transition: .22s ease;
            position: relative;
            overflow: hidden;
        }

        .data-card::before {
            content: "";
            position: absolute;
            inset: 0 0 auto;
            height: 3px;
            background: linear-gradient(90deg, var(--cyan), transparent, var(--orange));
            opacity: .82;
        }

        .data-card strong {
            display: block;
            font-size: 34px;
            line-height: 1;
            color: var(--text);
            letter-spacing: -.8px;
        }

        .data-card span {
            display: block;
            margin-top: 10px;
            color: var(--muted);
            font-size: 14px;
        }

        .compare-wrap {
            display: grid;
            grid-template-columns: .9fr 1.1fr;
            gap: 24px;
            align-items: stretch;
        }

        .visual-card {
            border-radius: 22px;
            min-height: 420px;
            overflow: hidden;
            position: relative;
            border: 1px solid var(--line);
            background: url('/assets/images/coverpic/cover-4.webp') center/cover no-repeat;
        }

        .visual-card::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 12%, rgba(5, 8, 10, .9) 100%);
        }

        .visual-copy {
            position: absolute;
            left: 24px;
            right: 24px;
            bottom: 24px;
        }

        .visual-copy h2 {
            font-size: 28px;
            line-height: 1.18;
            margin-bottom: 10px;
        }

        .visual-copy p {
            color: #c7d2db;
        }

        .table-card {
            border: 1px solid var(--line);
            border-radius: 22px;
            background: rgba(16, 22, 27, .76);
            overflow: hidden;
        }

        .score-line {
            display: grid;
            grid-template-columns: 1.05fr .85fr .85fr .6fr;
            gap: 14px;
            padding: 18px 20px;
            border-bottom: 1px solid var(--line);
            align-items: center;
        }

        .score-line:last-child {
            border-bottom: 0;
        }

        .score-head {
            color: var(--muted);
            font-size: 13px;
            background: rgba(255,255,255,.025);
        }

        .team-name {
            font-weight: 850;
        }

        .score-value {
            color: var(--cyan-2);
            font-weight: 900;
        }

        .status {
            justify-self: start;
            display: inline-flex;
            padding: 5px 9px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 800;
            border: 1px solid rgba(255,255,255,.12);
        }

        .status.hot {
            color: var(--orange);
            background: rgba(255, 159, 67, .1);
            border-color: rgba(255, 159, 67, .25);
        }

        .status.done {
            color: var(--green);
            background: rgba(110, 231, 168, .1);
            border-color: rgba(110, 231, 168, .25);
        }

        .flow-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 16px;
        }

        .flow-step {
            padding: 24px;
            border-radius: var(--radius);
            border: 1px solid var(--line);
            background: rgba(20, 27, 34, .82);
            transition: .22s ease;
        }

        .step-num {
            width: 42px;
            height: 42px;
            border-radius: 13px;
            display: grid;
            place-items: center;
            color: #061113;
            font-weight: 900;
            background: var(--cyan);
            margin-bottom: 18px;
        }

        .notice-grid {
            display: grid;
            grid-template-columns: 1fr 1fr 1fr;
            gap: 18px;
        }

        .notice-card {
            border-radius: var(--radius);
            border: 1px solid var(--line);
            background: linear-gradient(180deg, rgba(24, 33, 42, .92), rgba(13, 18, 22, .92));
            padding: 24px;
        }

        .notice-icon {
            width: 44px;
            height: 44px;
            border-radius: 14px;
            display: grid;
            place-items: center;
            margin-bottom: 16px;
            color: var(--cyan-2);
            background: rgba(36, 222, 232, .1);
            border: 1px solid rgba(36, 222, 232, .22);
            font-weight: 900;
        }

        .faq-list {
            display: grid;
            gap: 12px;
        }

        .faq-item {
            border: 1px solid var(--line);
            border-radius: var(--radius);
            background: rgba(16, 22, 27, .82);
            overflow: hidden;
        }

        .faq-question {
            width: 100%;
            min-height: 62px;
            padding: 0 20px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            color: var(--text);
            background: transparent;
            text-align: left;
            font-weight: 850;
        }

        .faq-question span:last-child {
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: grid;
            place-items: center;
            color: var(--cyan-2);
            background: rgba(36, 222, 232, .08);
            flex: 0 0 auto;
            transition: .22s ease;
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .28s ease;
        }

        .faq-answer p {
            color: var(--muted);
            padding: 0 20px 20px;
        }

        .faq-item.open .faq-answer {
            max-height: 180px;
        }

        .faq-item.open .faq-question span:last-child {
            transform: rotate(45deg);
            background: var(--cyan);
            color: #061113;
        }

        .cta-panel {
            position: relative;
            overflow: hidden;
            border-radius: 24px;
            border: 1px solid rgba(36, 222, 232, .28);
            background:
                linear-gradient(90deg, rgba(11, 16, 20, .96), rgba(11, 16, 20, .84)),
                url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
            padding: 42px;
            display: grid;
            grid-template-columns: 1fr auto;
            align-items: center;
            gap: 24px;
            box-shadow: var(--shadow);
        }

        .cta-panel h2 {
            font-size: clamp(26px, 3vw, 38px);
            line-height: 1.15;
            margin-bottom: 10px;
        }

        .cta-panel p {
            color: var(--muted);
            max-width: 720px;
        }

        .cta-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            justify-content: flex-end;
        }

        .site-footer {
            margin-top: 80px;
            padding: 52px 0 28px;
            background: #05080a;
            border-top: 1px solid var(--line);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr .75fr .75fr 1fr;
            gap: 28px;
            padding-bottom: 34px;
        }

        .footer-brand h3 {
            font-size: 22px;
            margin-bottom: 10px;
        }

        .footer-brand p,
        .footer-col span {
            color: var(--muted);
            font-size: 14px;
        }

        .footer-col {
            display: grid;
            align-content: start;
            gap: 9px;
        }

        .footer-col h4 {
            font-size: 15px;
            margin-bottom: 4px;
            color: var(--text);
        }

        .footer-col a {
            color: var(--muted);
            font-size: 14px;
            transition: .22s ease;
        }

        .footer-col a:hover,
        .footer-col a:focus {
            color: var(--cyan-2);
            outline: none;
        }

        .footer-bottom {
            border-top: 1px solid var(--line);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            gap: 16px;
            color: var(--muted-2);
            font-size: 13px;
        }

        @media (max-width: 1024px) {
            .spotlight-grid,
            .compare-wrap {
                grid-template-columns: 1fr;
            }

            .data-strip,
            .flow-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .notice-grid,
            .footer-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .hero-content {
                padding: 48px 36px;
            }

            .cta-panel {
                grid-template-columns: 1fr;
            }

            .cta-actions {
                justify-content: flex-start;
            }
        }

        @media (max-width: 768px) {
            .container {
                width: min(100% - 28px, var(--max));
            }

            .strip-inner {
                flex-direction: column;
                align-items: flex-start;
                padding: 10px 0;
                gap: 6px;
            }

            .header-inner {
                height: auto;
                min-height: 70px;
                flex-wrap: wrap;
                padding: 12px 0;
            }

            .nav-toggle {
                display: grid;
                place-items: center;
            }

            .nav {
                width: 100%;
                display: none;
            }

            .nav.open {
                display: block;
            }

            .nav-list {
                display: grid;
                grid-template-columns: 1fr;
                gap: 8px;
                padding: 6px 0 10px;
            }

            .nav-list a {
                width: 100%;
                justify-content: center;
                border-radius: 12px;
                background: rgba(255,255,255,.03);
            }

            .category-hero {
                min-height: auto;
            }

            .hero-content {
                padding: 40px 24px;
            }

            .hero-panel {
                grid-template-columns: 1fr;
            }

            main {
                padding-top: 48px;
            }

            .section {
                margin-bottom: 58px;
            }

            .section-head {
                display: grid;
            }

            .topic-card {
                grid-template-columns: 1fr;
            }

            .topic-card img {
                height: 190px;
            }

            .score-line {
                grid-template-columns: 1fr 1fr;
                gap: 8px;
            }

            .score-head {
                display: none;
            }

            .status {
                justify-self: start;
            }

            .cta-panel {
                padding: 30px 22px;
            }

            .footer-bottom {
                flex-direction: column;
            }
        }

        @media (max-width: 520px) {
            .brand-copy span {
                display: none;
            }

            .brand-copy strong {
                font-size: 15px;
            }

            .brand-mark {
                width: 38px;
                height: 38px;
            }

            h1 {
                font-size: 32px;
            }

            .hero-lead {
                font-size: 15px;
            }

            .hero-actions,
            .cta-actions {
                display: grid;
            }

            .btn {
                width: 100%;
                min-height: 50px;
            }

            .data-strip,
            .flow-grid,
            .notice-grid,
            .footer-grid {
                grid-template-columns: 1fr;
            }

            .filter-bar {
                align-items: stretch;
            }

            .chip {
                justify-content: center;
            }

            .visual-card {
                min-height: 330px;
            }
        }