/* roulang page: index */
:root{
            --forest:#123f35;
            --forest-deep:#0d2e28;
            --ink:#182521;
            --text:#42534d;
            --muted:#75817b;
            --lime:#b7d94c;
            --lime-soft:#e9f2bd;
            --coral:#e98b62;
            --cream:#f5f6f0;
            --paper:#ffffff;
            --line:#dfe6dd;
            --shadow:0 16px 42px rgba(18,63,53,.09);
            --shadow-soft:0 8px 24px rgba(18,63,53,.06);
            --radius:14px;
            --container:1200px;
        }
        *{box-sizing:border-box;margin:0;padding:0}
        html{scroll-behavior:smooth}
        body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;background:var(--cream);color:var(--ink);line-height:1.7;font-size:15px}
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button{font:inherit;border:0;cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{height:76px;background:rgba(245,246,240,.96);border-bottom:1px solid rgba(18,63,53,.1);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
        .header-inner{height:76px;display:flex;align-items:center;gap:34px}
        .brand{display:flex;align-items:center;gap:11px;white-space:nowrap}
        .brand-mark{width:34px;height:34px;border-radius:9px;background:var(--forest);color:var(--lime);display:grid;place-items:center;font-weight:800;letter-spacing:-1px}
        .brand-name{font-weight:800;font-size:17px;letter-spacing:.02em}
        .main-nav{display:flex;align-items:center;gap:5px;margin-left:auto}
        .main-nav a{padding:9px 13px;color:var(--text);font-size:14px;border-bottom:2px solid transparent;transition:.25s ease}
        .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--forest);border-bottom-color:var(--lime);font-weight:700}
        .header-action{background:var(--forest);color:#fff;padding:10px 17px;border-radius:8px;font-size:13px;font-weight:700;transition:.25s ease}
        .header-action:hover{background:var(--forest-deep);transform:translateY(-2px)}
        .menu-toggle{display:none;background:none;color:var(--forest);font-size:25px}
        .hero{padding:76px 0 84px;background:var(--cream);overflow:hidden}
        .hero-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:72px;align-items:center}
        .eyebrow,.section-kicker{color:var(--forest);font-size:12px;font-weight:800;letter-spacing:.16em;text-transform:uppercase}
        .eyebrow{display:inline-flex;align-items:center;gap:10px;margin-bottom:20px}
        .eyebrow:before{content:"";width:27px;height:3px;background:var(--coral);display:inline-block}
        h1{font-size:clamp(40px,5.2vw,68px);line-height:1.12;letter-spacing:-.055em;max-width:620px}
        .hero-copy{font-size:17px;color:var(--text);max-width:540px;margin:25px 0 31px}
        .actions{display:flex;gap:12px;flex-wrap:wrap}
        .btn{display:inline-flex;align-items:center;justify-content:center;min-height:45px;padding:0 20px;border-radius:8px;font-weight:700;transition:.25s ease}
        .btn-primary{background:var(--lime);color:var(--forest-deep)}
        .btn-primary:hover{background:#c9e765;transform:translateY(-2px);box-shadow:0 8px 18px rgba(183,217,76,.25)}
        .btn-secondary{border:1px solid var(--forest);color:var(--forest);background:transparent}
        .btn-secondary:hover{background:var(--forest);color:#fff;transform:translateY(-2px)}
        .hero-art{min-height:402px;background:var(--forest);border-radius:24px;position:relative;padding:28px;overflow:hidden;box-shadow:var(--shadow)}
        .hero-art:before,.hero-art:after{content:"";position:absolute;border:1px solid rgba(183,217,76,.28);border-radius:50%}
        .hero-art:before{width:360px;height:360px;right:-140px;top:-150px}.hero-art:after{width:250px;height:250px;left:-135px;bottom:-130px}
        .art-top{position:relative;z-index:1;display:flex;justify-content:space-between;color:#dce9d2;font-size:12px}
        .art-label{background:var(--lime);color:var(--forest-deep);padding:5px 10px;border-radius:5px;font-weight:800}
        .screen{position:absolute;z-index:1;left:14%;right:14%;top:82px;bottom:27px;background:#f2f5e9;border-radius:18px;padding:22px;color:var(--ink);box-shadow:0 20px 30px rgba(0,0,0,.16)}
        .screen-title{font-size:23px;font-weight:800;line-height:1.25;margin-bottom:8px}.screen-sub{font-size:12px;color:var(--muted)}
        .screen-feature{height:126px;border-radius:11px;margin:22px 0;background:linear-gradient(135deg,#315f4d,#91ad49);padding:18px;color:#fff;position:relative;overflow:hidden}
        .screen-feature:after{content:"PG";position:absolute;right:17px;bottom:-20px;font-size:100px;font-weight:900;color:rgba(255,255,255,.13)}
        .screen-feature strong{font-size:19px;display:block;position:relative;z-index:1}.screen-feature span{font-size:12px;position:relative;z-index:1}
        .screen-lines{display:grid;gap:10px}.screen-line{height:10px;background:#d7dfd1;border-radius:4px}.screen-line.short{width:62%}
        section{scroll-margin-top:90px}.section{padding:91px 0}.section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:35px}
        .section-title{font-size:clamp(27px,3vw,40px);letter-spacing:-.035em;line-height:1.2;margin-top:9px}.section-intro{max-width:480px;color:var(--muted)}
        .info-strip{background:var(--forest);color:#fff;padding:27px 0}.strip-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}.strip-item{border-left:1px solid rgba(255,255,255,.2);padding-left:22px}.strip-item b{display:block;color:var(--lime);font-size:24px;line-height:1.25}.strip-item span{font-size:13px;color:#d2ddd4}
        .product-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}.product-feature,.product-side{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden}.product-feature{display:grid;grid-template-columns:1fr 1fr;min-height:300px}.product-visual{background:#dce8cf;position:relative;padding:28px;display:flex;align-items:end}.product-visual:after{content:"PG";font-size:130px;font-weight:900;color:rgba(18,63,53,.14);position:absolute;top:16px;right:20px}.visual-note{position:relative;z-index:1;background:var(--forest);color:#fff;padding:12px 15px;border-radius:8px;font-size:13px}.product-info{padding:32px}.product-info h3,.content-card h3{font-size:22px;line-height:1.35;margin:14px 0 10px}.product-info p,.content-card p{color:var(--text);font-size:14px}.tag{display:inline-block;padding:4px 9px;border-radius:5px;background:var(--lime-soft);color:var(--forest);font-size:12px;font-weight:700}.product-side{padding:26px;display:flex;flex-direction:column;justify-content:space-between}.product-side h3{font-size:21px;line-height:1.35}.side-row{padding:16px 0;border-bottom:1px solid var(--line);display:flex;justify-content:space-between;gap:12px}.side-row:last-child{border:0}.side-row span{color:var(--muted);font-size:13px}.side-row b{font-size:14px;text-align:right}
        .feature-content{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}.content-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px;transition:.25s ease}.content-card:hover,.guide-card:hover{border-color:#abc77a;box-shadow:var(--shadow-soft);transform:translateY(-3px)}.feature-card{background:var(--coral);color:#fff;min-height:270px;display:flex;flex-direction:column;justify-content:end}.feature-card p{color:#fff}.small-stack{display:grid;gap:20px}.small-stack .content-card{min-height:125px}.small-stack h3{font-size:18px;margin:9px 0 3px}
        .timeline{border-top:1px solid var(--line)}.timeline-item{display:grid;grid-template-columns:150px 110px 1fr auto;gap:20px;align-items:center;padding:21px 0;border-bottom:1px solid var(--line)}.date{font-weight:800;color:var(--forest)}.version{color:var(--coral);font-weight:700;font-size:13px}.timeline-item p{color:var(--text);font-size:14px}.arrow{font-size:20px;color:var(--forest)}
        .channel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.channel{background:var(--paper);border:1px solid var(--line);border-radius:11px;padding:22px;min-height:140px;transition:.25s}.channel:hover{background:var(--forest);color:#fff;transform:translateY(-3px)}.channel em{font-style:normal;color:var(--coral);font-size:12px;font-weight:800}.channel h3{margin:16px 0 6px;font-size:18px}.channel p{font-size:13px;color:var(--muted)}.channel:hover p{color:#d7e3da}
        .theme-band{background:#e7eedc;padding:31px;display:grid;grid-template-columns:1.1fr .9fr;gap:30px;align-items:center;border-radius:var(--radius)}.theme-band h3{font-size:28px;line-height:1.3;margin:8px 0}.theme-band p{color:var(--text)}.theme-list{display:flex;flex-wrap:wrap;gap:9px;justify-content:flex-end}.theme-list span{background:#fff;border:1px solid #cfdbc7;border-radius:6px;padding:10px 13px;font-size:13px}
        .download-panel{background:var(--forest-deep);color:#fff;border-radius:18px;padding:42px;display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}.download-panel h2{font-size:34px;line-height:1.25;margin:10px 0 13px}.download-panel p{color:#cbd9cf}.download-meta{display:flex;gap:24px;margin:24px 0}.download-meta b{display:block;color:var(--lime);font-size:18px}.download-meta span{font-size:12px;color:#b6c8bc}.download-btns{display:flex;gap:10px;flex-wrap:wrap}.download-btns .btn-secondary{border-color:var(--lime);color:var(--lime)}.device-stage{height:265px;background:#203f35;border:1px solid rgba(183,217,76,.3);border-radius:14px;display:flex;align-items:center;justify-content:center;position:relative}.device{width:145px;height:235px;background:#f3f5e9;border:7px solid #0d201c;border-radius:22px;padding:18px 11px;color:var(--ink);box-shadow:18px 18px 0 rgba(183,217,76,.25);transform:rotate(7deg)}.device b{font-size:15px;display:block;line-height:1.25}.device .mini-block{height:67px;background:var(--coral);border-radius:7px;margin:15px 0}.qr{position:absolute;right:28px;bottom:25px;width:57px;height:57px;background:repeating-linear-gradient(45deg,#fff 0 3px,#182521 3px 6px);border:5px solid #fff}
        .guide-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:15px}.guide-card{background:#fff;border:1px solid var(--line);padding:24px;border-radius:12px;transition:.25s}.guide-number{font-size:31px;color:var(--coral);font-weight:900}.guide-card h3{font-size:17px;margin:10px 0 6px}.guide-card p{color:var(--muted);font-size:13px}
        .news-list{border-top:2px solid var(--forest)}.news-item{display:grid;grid-template-columns:125px 100px 1fr 25px;gap:18px;align-items:center;padding:21px 0;border-bottom:1px solid var(--line)}.news-date{font-weight:800;color:var(--forest)}.news-cat{font-size:12px;color:var(--coral);font-weight:800}.news-item h3{font-size:17px;margin-bottom:3px}.news-item p{font-size:13px;color:var(--muted)}.news-arrow{color:var(--forest);font-size:20px}.empty{padding:29px 0;color:var(--muted)}
        .observe{display:grid;grid-template-columns:1.35fr .65fr;gap:20px}.observe-main{background:var(--forest);color:#fff;border-radius:var(--radius);padding:34px;min-height:220px;display:flex;flex-direction:column;justify-content:end}.observe-main h3{font-size:27px;line-height:1.3;margin:10px 0}.observe-main p{color:#d2ded3}.observe-side{display:grid;gap:20px}.observe-side .content-card{padding:22px}.observe-side h3{font-size:17px}
        .notice{border-left:5px solid var(--coral);background:#fff;padding:24px 28px;display:flex;justify-content:space-between;gap:20px;align-items:center;border-radius:8px;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}.notice h3{font-size:19px}.notice p{color:var(--muted);font-size:13px}.notice-date{color:var(--coral);font-weight:800;white-space:nowrap}
        .faq-list{max-width:850px;margin:0 auto}.faq-item{background:#fff;border-bottom:1px solid var(--line)}.faq-question{width:100%;display:flex;justify-content:space-between;align-items:center;padding:20px 4px;background:none;color:var(--ink);font-weight:700;text-align:left}.faq-question span:last-child{font-size:22px;color:var(--forest)}.faq-answer{display:none;padding:0 35px 20px 4px;color:var(--text);font-size:14px}.faq-item.open .faq-answer{display:block}
        .closing{background:var(--forest);color:#fff;padding:54px 0}.closing-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}.closing h2{font-size:32px;line-height:1.3}.closing p{color:#c9d9ce;margin-top:8px}.closing .btn-primary{white-space:nowrap}
        .site-footer{background:#17211f;color:#d7e1d8;padding:54px 0 25px}.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;padding-bottom:42px}.footer-brand{font-size:19px;font-weight:800;color:#fff;margin-bottom:13px}.footer-grid p{color:#99aaa0;font-size:13px;max-width:280px}.footer-col h3{font-size:14px;color:var(--lime);margin-bottom:14px}.footer-col a{display:block;color:#b9c7bc;font-size:13px;margin:8px 0;transition:.2s}.footer-col a:hover{color:var(--lime)}.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding-top:20px;color:#899990;font-size:12px;display:flex;justify-content:space-between;gap:15px}
        :focus-visible{outline:3px solid var(--coral);outline-offset:3px}
        @media(max-width:1024px){.hero-grid{gap:38px}.main-nav{gap:0}.main-nav a{padding:9px 8px}.product-layout,.feature-content{grid-template-columns:1fr}.channel-grid{grid-template-columns:repeat(2,1fr)}.guide-grid{grid-template-columns:repeat(2,1fr)}}
        @media(max-width:768px){.container{width:min(100% - 34px,var(--container))}.site-header,.header-inner{height:68px}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--cream);padding:12px 17px 18px;border-bottom:1px solid var(--line);box-shadow:var(--shadow-soft);flex-direction:column;align-items:stretch}.main-nav.show{display:flex}.main-nav a{padding:12px 8px}.header-action{margin-left:auto;padding:8px 11px}.menu-toggle{display:block;order:3}.hero{padding:55px 0 60px}.hero-grid{grid-template-columns:1fr}.hero-art{min-height:350px}.strip-grid{grid-template-columns:repeat(2,1fr)}.section{padding:64px 0}.section-head{display:block}.section-intro{margin-top:13px}.product-feature{grid-template-columns:1fr}.product-visual{min-height:180px}.timeline-item{grid-template-columns:90px 75px 1fr}.timeline-item .arrow{display:none}.download-panel{grid-template-columns:1fr;padding:29px}.observe{grid-template-columns:1fr}.closing-inner{display:block}.closing .btn{margin-top:24px}.footer-grid{grid-template-columns:repeat(2,1fr)}}
        @media(max-width:520px){h1{font-size:40px}.hero-copy{font-size:15px}.hero-art{min-height:310px;padding:19px}.screen{left:8%;right:8%;top:66px}.channel-grid,.guide-grid{grid-template-columns:1fr}.strip-grid{grid-template-columns:1fr 1fr;gap:14px}.strip-item{padding-left:12px}.strip-item b{font-size:20px}.theme-band{grid-template-columns:1fr;padding:24px}.theme-list{justify-content:flex-start}.download-panel h2{font-size:28px}.download-meta{gap:15px}.news-item{grid-template-columns:82px 1fr 18px;gap:9px}.news-cat{grid-column:2}.news-item h3{grid-column:2;grid-row:1}.news-item p{grid-column:2;grid-row:3}.news-date{grid-row:1 / span 2}.footer-grid{grid-template-columns:1fr;gap:26px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:7px}.notice{display:block}.notice-date{display:block;margin-top:13px}}

/* roulang page: category1 */
:root{
            --forest:#123f35;
            --forest-deep:#0d2e28;
            --ink:#182521;
            --text:#42534d;
            --muted:#75817b;
            --lime:#b7d94c;
            --lime-soft:#e9f2bd;
            --coral:#e98b62;
            --cream:#f5f6f0;
            --paper:#fff;
            --line:#dfe6dd;
            --shadow:0 16px 42px rgba(18,63,53,.09);
            --shadow-soft:0 8px 24px rgba(18,63,53,.06);
            --radius:14px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{margin:0;background:var(--cream);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;font-size:15px;line-height:1.7}
        a{color:inherit;text-decoration:none}
        a:focus-visible,button:focus-visible{outline:3px solid rgba(183,217,76,.75);outline-offset:3px}
        img{display:block;max-width:100%}
        button{font:inherit;border:0;cursor:pointer}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{height:76px;background:rgba(245,246,240,.96);border-bottom:1px solid rgba(18,63,53,.1);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
        .header-inner{height:76px;display:flex;align-items:center;gap:34px}
        .brand{display:flex;align-items:center;gap:11px;white-space:nowrap}
        .brand-mark{width:34px;height:34px;border-radius:9px;background:var(--forest);color:var(--lime);display:grid;place-items:center;font-weight:800;letter-spacing:-1px}
        .brand-name{font-weight:800;font-size:17px;letter-spacing:.02em}
        .main-nav{display:flex;align-items:center;gap:5px;margin-left:auto}
        .main-nav a{padding:9px 13px;color:var(--text);font-size:14px;border-bottom:2px solid transparent;transition:.25s ease}
        .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--forest);border-bottom-color:var(--lime);font-weight:700}
        .header-action{background:var(--forest);color:#fff;padding:10px 17px;border-radius:8px;font-size:13px;font-weight:700;transition:.25s ease}
        .header-action:hover{background:var(--forest-deep);transform:translateY(-2px)}
        .menu-toggle{display:none;background:none;color:var(--forest);font-size:25px}
        .page-intro{padding:82px 0 70px;background:var(--forest);color:#fff;position:relative;overflow:hidden}
        .page-intro:after{content:"PG";position:absolute;right:7%;bottom:-72px;color:rgba(183,217,76,.12);font-size:230px;line-height:1;font-weight:900}
        .intro-inner{position:relative;z-index:1;max-width:780px}
        .eyebrow,.section-kicker{color:var(--forest);font-size:12px;font-weight:800;letter-spacing:.16em}
        .page-intro .eyebrow{color:var(--lime)}
        h1,h2,h3,p{margin-top:0}
        h1{font-size:clamp(38px,5vw,66px);line-height:1.14;letter-spacing:-.045em;margin:18px 0 22px}
        .intro-copy{max-width:650px;color:#d5e0d8;font-size:17px;margin-bottom:0}
        .section{padding:84px 0}
        .section-head{display:flex;justify-content:space-between;align-items:end;gap:26px;margin-bottom:32px}
        .section-title{font-size:clamp(27px,3vw,40px);letter-spacing:-.035em;line-height:1.2;margin:8px 0 0}
        .section-intro{max-width:470px;color:var(--muted);margin:0}
        .filter-bar{display:flex;flex-wrap:wrap;gap:10px;padding:18px;background:var(--paper);border:1px solid var(--line);border-radius:12px;box-shadow:var(--shadow-soft)}
        .filter-bar span{padding:8px 13px;border-radius:7px;background:#f0f4eb;color:var(--text);font-size:13px}
        .filter-bar span.current{background:var(--forest);color:var(--lime)}
        .product-list{display:grid;gap:18px}
        .product-row{display:grid;grid-template-columns:210px 1fr 120px;gap:27px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:22px;transition:.25s ease}
        .product-row:hover{border-color:#a9c678;box-shadow:var(--shadow-soft);transform:translateY(-2px)}
        .product-thumb{height:142px;border-radius:10px;background:linear-gradient(135deg,#194b3d,#89a948);display:flex;align-items:flex-end;padding:16px;color:#fff;overflow:hidden;position:relative}
        .product-thumb:after{content:"PG";position:absolute;right:8px;top:4px;font-size:76px;font-weight:900;color:rgba(255,255,255,.15)}
        .product-thumb strong{position:relative;z-index:1;font-size:18px}
        .product-row h3{font-size:22px;line-height:1.35;margin:12px 0 8px}
        .product-row p{color:var(--text);margin-bottom:8px}
        .tag{display:inline-block;padding:4px 9px;border-radius:5px;background:var(--lime-soft);color:var(--forest);font-size:12px;font-weight:700}
        .meta{font-size:13px;color:var(--muted)}
        .row-link{color:var(--forest);font-weight:700;font-size:14px;text-align:right}
        .row-link span{display:block;font-size:22px;margin-top:4px}
        .highlight{background:var(--coral);color:#fff;border-radius:18px;padding:40px;display:grid;grid-template-columns:1.3fr .7fr;gap:40px;align-items:end}
        .highlight h2{font-size:34px;line-height:1.25;margin:12px 0 14px}
        .highlight p{color:#fff;margin-bottom:0;max-width:650px}
        .highlight-mark{font-size:90px;font-weight:900;line-height:.8;text-align:right;color:rgba(255,255,255,.24)}
        .timeline{border-top:1px solid var(--line)}
        .timeline-item{display:grid;grid-template-columns:145px 120px 1fr;gap:22px;align-items:center;padding:21px 0;border-bottom:1px solid var(--line)}
        .timeline-item time{font-weight:700;color:var(--forest)}
        .status{color:var(--coral);font-size:13px;font-weight:700}
        .timeline-item p{margin:0;color:var(--text)}
        .device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}
        .device-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:27px;transition:.25s ease}
        .device-card:hover{border-color:#abc77a;box-shadow:var(--shadow-soft)}
        .device-icon{width:42px;height:42px;border-radius:10px;background:var(--lime-soft);color:var(--forest);display:grid;place-items:center;font-weight:800;margin-bottom:18px}
        .device-card h3{font-size:20px;margin-bottom:9px}
        .device-card p{color:var(--text);font-size:14px;margin-bottom:0}
        .guide-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .guide-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:25px;transition:.25s ease}
        .guide-number{font-size:30px;color:var(--coral);font-weight:800;line-height:1}
        .guide-card h3{font-size:18px;margin:18px 0 8px}
        .guide-card p{color:var(--text);font-size:14px;margin:0}
        .download-panel{background:var(--forest-deep);color:#fff;border-radius:18px;padding:38px;display:flex;justify-content:space-between;gap:30px;align-items:center}
        .download-panel h2{font-size:30px;margin:9px 0 12px}
        .download-panel p{color:#cbd9cf;margin:0;max-width:650px}
        .download-note{margin-top:12px!important;color:#9fb4a6!important;font-size:13px}
        .btn{display:inline-flex;align-items:center;justify-content:center;min-height:45px;padding:0 20px;border-radius:8px;font-weight:700;transition:.25s ease}
        .btn-primary{background:var(--lime);color:var(--forest-deep)}
        .btn-primary:hover{background:#c9e765;transform:translateY(-2px);box-shadow:0 8px 18px rgba(183,217,76,.25)}
        .btn-secondary{border:1px solid var(--forest);color:var(--forest);background:transparent}
        .btn-secondary:hover{background:var(--forest);color:#fff;transform:translateY(-2px)}
        .faq-list{border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-question{width:100%;padding:20px 4px;background:none;display:flex;justify-content:space-between;text-align:left;color:var(--ink);font-weight:700;font-size:16px}
        .faq-question i{font-style:normal;color:var(--coral);font-size:23px;line-height:1}
        .faq-answer{display:none;color:var(--text);padding:0 34px 20px 4px;font-size:14px}
        .faq-item.open .faq-answer{display:block}
        .faq-item.open .faq-question i:after{content:"−"}
        .faq-item.open .faq-question i{font-size:0}
        .faq-item.open .faq-question i:after{font-size:23px}
        .site-footer{background:#17211f;color:#d3ded6;padding:55px 0 22px}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
        .footer-brand{font-size:20px;font-weight:800;color:#fff;margin-bottom:10px}
        .site-footer p{color:#9eafa5;max-width:260px;font-size:13px}
        .footer-col{display:flex;flex-direction:column;gap:8px}
        .footer-col h3{font-size:14px;color:var(--lime);margin-bottom:8px}
        .footer-col a{font-size:13px;color:#b7c5bc;transition:.2s}
        .footer-col a:hover{color:var(--lime)}
        .footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:17px;display:flex;justify-content:space-between;gap:15px;color:#8fa097;font-size:12px}
        @media(max-width:1024px){
            .main-nav a{padding:9px 7px}
            .header-inner{gap:18px}
            .product-row{grid-template-columns:170px 1fr 90px}
        }
        @media(max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .site-header,.header-inner{height:68px}
            .main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--cream);padding:12px 16px;flex-direction:column;align-items:stretch;border-bottom:1px solid var(--line);box-shadow:var(--shadow-soft)}
            .main-nav.open{display:flex}
            .main-nav a{padding:12px 8px}
            .menu-toggle{display:block;margin-left:auto}
            .header-action{font-size:12px;padding:9px 12px}
            .page-intro{padding:60px 0}
            .page-intro:after{font-size:150px;bottom:-35px}
            .section{padding:60px 0}
            .section-head{display:block}
            .section-intro{margin-top:15px}
            .product-row{grid-template-columns:1fr;gap:17px}
            .product-thumb{height:170px}
            .row-link{text-align:left}
            .row-link span{display:inline;margin-left:8px}
            .highlight{grid-template-columns:1fr;padding:28px}
            .highlight-mark{text-align:left;font-size:65px}
            .timeline-item{grid-template-columns:1fr;gap:3px}
            .device-grid,.guide-grid{grid-template-columns:1fr}
            .download-panel{display:block;padding:29px}
            .download-panel .btn{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-bottom:6px}
        }
        @media(max-width:520px){
            h1{font-size:39px}
            .brand-name{font-size:15px}
            .header-action{display:none}
            .filter-bar{gap:7px}
            .filter-bar span{font-size:12px;padding:7px 9px}
            .footer-grid{grid-template-columns:1fr}
        }

/* roulang page: article */
:root{
            --forest:#123f35;
            --forest-deep:#0d2e28;
            --ink:#182521;
            --text:#42534d;
            --muted:#75817b;
            --lime:#b7d94c;
            --lime-soft:#e9f2bd;
            --coral:#e98b62;
            --cream:#f5f6f0;
            --paper:#ffffff;
            --line:#dfe6dd;
            --shadow:0 16px 42px rgba(18,63,53,.09);
            --shadow-soft:0 8px 24px rgba(18,63,53,.06);
            --radius:14px;
            --container:1200px;
        }

        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            background:var(--cream);
            color:var(--ink);
            font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
            font-size:15px;
            line-height:1.75;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%;height:auto}
        button{font:inherit;border:0;cursor:pointer}
        p{margin:0 0 16px}
        h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.035em}
        ul,ol{margin-top:0}
        ::selection{background:var(--lime);color:var(--forest-deep)}
        :focus-visible{outline:3px solid rgba(233,139,98,.55);outline-offset:3px}

        .container{
            width:min(var(--container),calc(100% - 48px));
            margin:0 auto;
        }

        .site-header{
            height:76px;
            background:rgba(245,246,240,.96);
            border-bottom:1px solid rgba(18,63,53,.1);
            position:sticky;
            top:0;
            z-index:20;
            backdrop-filter:blur(12px);
        }
        .header-inner{
            height:76px;
            display:flex;
            align-items:center;
            gap:34px;
        }
        .brand{
            display:flex;
            align-items:center;
            gap:11px;
            white-space:nowrap;
        }
        .brand-mark{
            width:34px;
            height:34px;
            border-radius:9px;
            background:var(--forest);
            color:var(--lime);
            display:grid;
            place-items:center;
            font-weight:800;
            letter-spacing:-1px;
        }
        .brand-name{
            font-size:17px;
            font-weight:800;
            letter-spacing:.02em;
        }
        .main-nav{
            display:flex;
            align-items:center;
            gap:5px;
            margin-left:auto;
        }
        .main-nav a{
            padding:9px 13px;
            color:var(--text);
            font-size:14px;
            border-bottom:2px solid transparent;
            transition:.25s ease;
        }
        .main-nav a:hover,
        .main-nav a:focus,
        .main-nav a.active{
            color:var(--forest);
            border-bottom-color:var(--lime);
            font-weight:700;
        }
        .header-action{
            background:var(--forest);
            color:#fff;
            padding:10px 17px;
            border-radius:8px;
            font-size:13px;
            font-weight:700;
            transition:.25s ease;
        }
        .header-action:hover{
            background:var(--forest-deep);
            color:#fff;
            transform:translateY(-2px);
        }
        .menu-toggle{
            display:none;
            background:none;
            color:var(--forest);
            font-size:25px;
            line-height:1;
            padding:5px;
        }

        .article-hero{
            padding:70px 0 58px;
            background:
                radial-gradient(circle at 86% 24%,rgba(183,217,76,.22),transparent 25%),
                var(--cream);
            border-bottom:1px solid var(--line);
        }
        .breadcrumb{
            display:flex;
            flex-wrap:wrap;
            align-items:center;
            gap:9px;
            color:var(--muted);
            font-size:13px;
            margin-bottom:27px;
        }
        .breadcrumb a{
            color:var(--forest);
            border-bottom:1px solid transparent;
        }
        .breadcrumb a:hover{border-bottom-color:var(--lime)}
        .breadcrumb-separator{color:#a7b2aa}
        .article-top{
            display:grid;
            grid-template-columns:minmax(0,1fr) 280px;
            gap:60px;
            align-items:end;
        }
        .section-kicker,
        .article-category{
            color:var(--forest);
            font-size:12px;
            font-weight:800;
            letter-spacing:.14em;
            text-transform:uppercase;
        }
        .article-category{
            display:inline-flex;
            align-items:center;
            gap:10px;
            margin-bottom:16px;
            letter-spacing:.04em;
            text-transform:none;
        }
        .article-category:before{
            content:"";
            display:inline-block;
            width:27px;
            height:3px;
            background:var(--coral);
        }
        .article-title{
            max-width:860px;
            font-size:clamp(34px,5vw,62px);
            line-height:1.16;
            overflow-wrap:anywhere;
        }
        .article-summary{
            max-width:800px;
            margin:22px 0 0;
            color:var(--text);
            font-size:17px;
        }
        .article-meta{
            padding:19px 0 3px 23px;
            border-left:1px solid var(--forest);
            color:var(--muted);
            font-size:13px;
        }
        .article-meta-row{
            display:flex;
            justify-content:space-between;
            gap:18px;
            padding:9px 0;
            border-bottom:1px solid var(--line);
        }
        .article-meta-row:last-child{border-bottom:0}
        .article-meta-row strong{
            color:var(--ink);
            font-weight:700;
            text-align:right;
            overflow-wrap:anywhere;
        }

        .article-layout{
            display:grid;
            grid-template-columns:minmax(0,800px) 250px;
            gap:72px;
            align-items:start;
            padding:74px 0 88px;
        }
        .article-content{
            min-width:0;
            background:var(--paper);
            border:1px solid var(--line);
            border-radius:var(--radius);
            padding:clamp(25px,4vw,55px);
            box-shadow:var(--shadow-soft);
        }
        .article-content h2{
            margin:38px 0 15px;
            font-size:28px;
            line-height:1.35;
        }
        .article-content h3{
            margin:28px 0 12px;
            font-size:21px;
            line-height:1.45;
        }
        .article-content h2:first-child,
        .article-content h3:first-child{margin-top:0}
        .article-content p{
            color:var(--text);
            font-size:16px;
            line-height:2;
            overflow-wrap:anywhere;
        }
        .article-content ul,
        .article-content ol{
            padding-left:1.45em;
            color:var(--text);
            font-size:16px;
            line-height:2;
        }
        .article-content li{padding-left:5px;margin:5px 0}
        .article-content blockquote{
            margin:27px 0;
            padding:19px 22px;
            background:var(--lime-soft);
            border-left:4px solid var(--lime);
            color:var(--forest-deep);
            font-size:16px;
        }
        .article-content a{
            color:var(--forest);
            text-decoration:underline;
            text-decoration-color:rgba(18,63,53,.35);
            text-underline-offset:3px;
        }
        .article-content a:hover{text-decoration-color:var(--coral)}
        .article-content table{
            width:100%;
            margin:25px 0;
            border-collapse:collapse;
            font-size:14px;
        }
        .article-content th,
        .article-content td{
            padding:12px 14px;
            border:1px solid var(--line);
            text-align:left;
            vertical-align:top;
        }
        .article-content th{
            background:#eef3e9;
            color:var(--forest-deep);
            font-weight:800;
        }
        .article-content img{
            width:auto;
            max-width:100%;
            margin:25px auto;
            border-radius:10px;
        }
        .article-content figure{margin:27px 0}
        .article-content figcaption{
            color:var(--muted);
            text-align:center;
            font-size:13px;
            margin-top:-15px;
        }
        .empty-state{
            padding:45px 20px;
            text-align:center;
            color:var(--muted);
        }
        .empty-state strong{
            display:block;
            color:var(--ink);
            font-size:22px;
            margin-bottom:9px;
        }
        .empty-state a{
            display:inline-flex;
            margin-top:15px;
            text-decoration:none;
        }

        .article-aside{
            position:sticky;
            top:108px;
        }
        .aside-card{
            background:var(--paper);
            border:1px solid var(--line);
            border-radius:var(--radius);
            padding:23px;
            margin-bottom:18px;
        }
        .aside-card.dark{
            background:var(--forest);
            border-color:var(--forest);
            color:#fff;
        }
        .aside-card h3{
            font-size:17px;
            margin-bottom:14px;
        }
        .aside-card p{
            color:var(--muted);
            font-size:13px;
            line-height:1.7;
        }
        .dark p{color:#d4e0d6}
        .aside-list{
            list-style:none;
            padding:0;
            margin:0;
        }
        .aside-list li{
            padding:10px 0;
            border-bottom:1px solid var(--line);
            color:var(--text);
            font-size:13px;
        }
        .aside-list li:last-child{border-bottom:0}
        .aside-list a:hover{color:var(--forest)}
        .mini-label{
            display:inline-block;
            padding:4px 8px;
            margin-bottom:13px;
            border-radius:5px;
            background:var(--lime);
            color:var(--forest-deep);
            font-size:11px;
            font-weight:800;
        }
        .aside-button{
            display:flex;
            justify-content:center;
            align-items:center;
            min-height:42px;
            margin-top:16px;
            border-radius:8px;
            background:var(--lime);
            color:var(--forest-deep);
            font-weight:800;
            font-size:13px;
            transition:.25s ease;
        }
        .aside-button:hover{
            background:#c9e765;
            color:var(--forest-deep);
            transform:translateY(-2px);
        }

        .article-note{
            margin:0 0 32px;
            padding:20px 22px;
            display:flex;
            gap:16px;
            align-items:flex-start;
            border:1px solid #d7e4c1;
            border-radius:11px;
            background:#f1f6dc;
        }
        .note-mark{
            flex:0 0 auto;
            width:29px;
            height:29px;
            display:grid;
            place-items:center;
            border-radius:7px;
            background:var(--lime);
            color:var(--forest-deep);
            font-weight:900;
        }
        .article-note h3{
            margin:0 0 3px;
            font-size:16px;
        }
        .article-note p{
            margin:0;
            color:var(--text);
            font-size:14px;
            line-height:1.7;
        }

        .support-section{
            padding:0 0 86px;
        }
        .support-head{
            display:flex;
            justify-content:space-between;
            align-items:end;
            gap:25px;
            margin-bottom:27px;
        }
        .support-head h2{
            margin-top:8px;
            font-size:clamp(26px,3vw,37px);
        }
        .support-head p{
            max-width:440px;
            margin:0;
            color:var(--muted);
        }
        .support-grid{
            display:grid;
            grid-template-columns:repeat(3,1fr);
            gap:18px;
        }
        .support-card{
            min-height:177px;
            padding:24px;
            background:var(--paper);
            border:1px solid var(--line);
            border-radius:var(--radius);
            transition:.25s ease;
        }
        .support-card:hover{
            border-color:#abc77a;
            box-shadow:var(--shadow-soft);
            transform:translateY(-3px);
        }
        .support-card .number{
            color:var(--coral);
            font-size:13px;
            font-weight:900;
            letter-spacing:.12em;
        }
        .support-card h3{
            margin:14px 0 8px;
            font-size:19px;
        }
        .support-card p{
            color:var(--text);
            font-size:14px;
            line-height:1.75;
        }

        .download-panel{
            display:grid;
            grid-template-columns:1.2fr .8fr;
            gap:30px;
            align-items:center;
            padding:35px 40px;
            border-radius:18px;
            background:var(--forest);
            color:#fff;
            overflow:hidden;
            position:relative;
        }
        .download-panel:after{
            content:"PG";
            position:absolute;
            right:22px;
            bottom:-38px;
            color:rgba(183,217,76,.13);
            font-size:150px;
            line-height:1;
            font-weight:900;
            pointer-events:none;
        }
        .download-panel h2{
            position:relative;
            z-index:1;
            font-size:30px;
            margin-bottom:11px;
        }
        .download-panel p{
            position:relative;
            z-index:1;
            max-width:590px;
            color:#d8e3da;
            margin-bottom:22px;
        }
        .download-actions{
            position:relative;
            z-index:1;
            display:flex;
            flex-wrap:wrap;
            gap:10px;
        }
        .btn{
            display:inline-flex;
            align-items:center;
            justify-content:center;
            min-height:45px;
            padding:0 20px;
            border-radius:8px;
            font-weight:700;
            transition:.25s ease;
        }
        .btn-primary{
            background:var(--lime);
            color:var(--forest-deep);
        }
        .btn-primary:hover{
            background:#c9e765;
            color:var(--forest-deep);
            transform:translateY(-2px);
            box-shadow:0 8px 18px rgba(183,217,76,.25);
        }
        .btn-secondary{
            border:1px solid rgba(255,255,255,.55);
            color:#fff;
            background:transparent;
        }
        .btn-secondary:hover{
            background:#fff;
            color:var(--forest);
            transform:translateY(-2px);
        }
        .download-visual{
            min-height:145px;
            display:flex;
            justify-content:center;
            align-items:center;
            position:relative;
            z-index:1;
        }
        .device-card{
            width:180px;
            padding:10px;
            border:6px solid #dfead2;
            border-radius:22px;
            background:#273f37;
            box-shadow:0 15px 30px rgba(0,0,0,.18);
            transform:rotate(5deg);
        }
        .device-screen{
            min-height:112px;
            padding:14px;
            border-radius:13px;
            background:linear-gradient(145deg,#315f4d,#9eb84f);
            color:#fff;
        }
        .device-screen b{
            display:block;
            font-size:19px;
            line-height:1.2;
        }
        .device-screen span{
            display:block;
            margin-top:24px;
            font-size:11px;
            color:#f2f6df;
        }

        .site-footer{
            padding:58px 0 25px;
            background:#17211f;
            color:#fff;
        }
        .footer-grid{
            display:grid;
            grid-template-columns:1.4fr 1fr 1fr 1fr;
            gap:35px;
            padding-bottom:42px;
        }
        .footer-brand{
            margin-bottom:12px;
            font-size:20px;
            font-weight:800;
        }
        .footer-grid p{
            max-width:260px;
            color:#aabbb0;
            font-size:13px;
            line-height:1.8;
        }
        .footer-col{
            display:flex;
            flex-direction:column;
            align-items:flex-start;
            gap:8px;
        }
        .footer-col h3{
            margin-bottom:8px;
            color:var(--lime);
            font-size:14px;
        }
        .footer-col a{
            color:#bdc9c1;
            font-size:13px;
            transition:.2s ease;
        }
        .footer-col a:hover{
            color:#fff;
            transform:translateX(2px);
        }
        .footer-bottom{
            display:flex;
            justify-content:space-between;
            gap:20px;
            padding-top:20px;
            border-top:1px solid rgba(255,255,255,.12);
            color:#91a198;
            font-size:12px;
        }

        @media (max-width:1024px){
            .header-inner{gap:18px}
            .main-nav a{padding-left:8px;padding-right:8px;font-size:13px}
            .article-top{grid-template-columns:1fr 235px;gap:35px}
            .article-layout{grid-template-columns:minmax(0,1fr) 220px;gap:35px}
            .download-panel{padding:30px}
        }

        @media (max-width:768px){
            .container{width:min(var(--container),calc(100% - 34px))}
            .site-header,.header-inner{height:68px}
            .brand-name{font-size:15px}
            .main-nav{
                display:none;
                position:absolute;
                left:17px;
                right:17px;
                top:73px;
                padding:10px;
                flex-direction:column;
                align-items:stretch;
                gap:0;
                background:var(--paper);
                border:1px solid var(--line);
                border-radius:12px;
                box-shadow:var(--shadow);
            }
            .main-nav.open{display:flex}
            .main-nav a{
                padding:13px 14px;
                border-bottom:1px solid var(--line);
            }
            .main-nav a:last-child{border-bottom:0}
            .header-action{display:none}
            .menu-toggle{display:block;margin-left:auto}
            .article-hero{padding:46px 0 42px}
            .article-top{display:block}
            .article-title{font-size:clamp(32px,9vw,48px)}
            .article-summary{font-size:16px}
            .article-meta{
                display:grid;
                grid-template-columns:1fr 1fr;
                gap:0 18px;
                margin-top:30px;
                padding:13px 0 0;
                border-left:0;
                border-top:1px solid var(--forest);
            }
            .article-layout{
                display:block;
                padding:42px 0 58px;
            }
            .article-content{padding:25px 20px}
            .article-content p,
            .article-content ul,
            .article-content ol{font-size:15px}
            .article-aside{
                position:static;
                display:grid;
                grid-template-columns:1fr 1fr;
                gap:14px;
                margin-top:24px;
            }
            .aside-card{margin:0}
            .support-section{padding-bottom:58px}
            .support-head{display:block}
            .support-head p{margin-top:12px}
            .support-grid{grid-template-columns:1fr 1fr}
            .download-panel{grid-template-columns:1fr;padding:28px 23px}
            .download-visual{order:-1;justify-content:flex-start}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px 20px}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:7px}
        }

        @media (max-width:520px){
            .brand-mark{width:31px;height:31px}
            .brand-name{font-size:14px}
            .breadcrumb{font-size:12px}
            .article-meta{display:block}
            .article-meta-row{max-width:300px}
            .article-content h2{font-size:24px}
            .article-content h3{font-size:19px}
            .article-note{padding:17px}
            .article-aside,
            .support-grid{grid-template-columns:1fr}
            .download-panel h2{font-size:25px}
            .download-actions{display:grid;grid-template-columns:1fr}
            .download-actions .btn{width:100%}
            .footer-grid{grid-template-columns:1fr}
        }

/* roulang page: category2 */
:root{
        --forest:#123f35;--forest-deep:#0d2e28;--ink:#182521;--text:#42534d;--muted:#75817b;
        --lime:#b7d94c;--lime-soft:#e9f2bd;--coral:#e98b62;--cream:#f5f6f0;--paper:#fff;
        --line:#dfe6dd;--shadow:0 16px 42px rgba(18,63,53,.09);--shadow-soft:0 8px 24px rgba(18,63,53,.06);
        --radius:14px;--container:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;font-size:15px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    img{display:block;max-width:100%}
    button{font:inherit;border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:auto}
    .site-header{height:76px;background:rgba(245,246,240,.96);border-bottom:1px solid rgba(18,63,53,.1);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:76px;display:flex;align-items:center;gap:30px}
    .brand{display:flex;align-items:center;gap:11px;white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:9px;background:var(--forest);color:var(--lime);display:grid;place-items:center;font-weight:800}
    .brand-name{font-weight:800;font-size:17px;letter-spacing:.02em}
    .main-nav{display:flex;align-items:center;gap:5px;margin-left:auto}
    .main-nav a{padding:9px 13px;color:var(--text);font-size:14px;border-bottom:2px solid transparent;transition:.25s ease}
    .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--forest);border-bottom-color:var(--lime);font-weight:700}
    .header-action,.btn{display:inline-flex;align-items:center;justify-content:center;min-height:45px;border-radius:8px;font-weight:700;transition:.25s ease}
    .header-action{background:var(--forest);color:#fff;padding:10px 17px;font-size:13px}
    .header-action:hover{background:var(--forest-deep);transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;color:var(--forest);font-size:25px}
    main{overflow:hidden}
    .category-hero{padding:82px 0 68px;background:var(--forest);color:#fff;position:relative}
    .category-hero:after{content:"PG";position:absolute;right:7%;bottom:-45px;color:rgba(183,217,76,.08);font-size:220px;font-weight:900;line-height:1}
    .hero-inner{position:relative;z-index:1;max-width:780px}
    .eyebrow,.section-kicker{font-size:12px;letter-spacing:.16em;font-weight:800;color:var(--lime)}
    .eyebrow{display:inline-flex;gap:10px;align-items:center}
    .eyebrow:before{content:"";width:27px;height:3px;background:var(--coral)}
    h1{font-size:clamp(36px,5vw,64px);line-height:1.15;letter-spacing:-.045em;margin:18px 0}
    .hero-text{max-width:680px;color:#d8e4d9;font-size:17px;margin:0}
    .hero-note{display:flex;gap:10px;flex-wrap:wrap;margin-top:28px}
    .hero-note span{border:1px solid rgba(255,255,255,.22);padding:7px 12px;border-radius:6px;color:#edf5e7;font-size:13px}
    .section{padding:82px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;margin-bottom:32px}
    .section-title{font-size:clamp(27px,3vw,40px);line-height:1.2;letter-spacing:-.035em;margin:8px 0 0}
    .section-intro{max-width:470px;color:var(--muted);margin:0}
    .tag-panel{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px;display:flex;gap:12px;flex-wrap:wrap;box-shadow:var(--shadow-soft)}
    .topic-tag{padding:10px 15px;border:1px solid #cad8c4;border-radius:7px;color:var(--forest);background:#fbfcf8;font-weight:700;transition:.25s}
    .topic-tag:hover,.topic-tag.active{background:var(--lime);border-color:var(--lime);transform:translateY(-2px)}
    .content-list{display:grid;gap:14px}
    .content-item{display:grid;grid-template-columns:105px 1fr 155px;gap:24px;align-items:center;background:var(--paper);border:1px solid var(--line);border-radius:12px;padding:22px 25px;transition:.25s}
    .content-item:hover{border-color:#abc77a;box-shadow:var(--shadow-soft);transform:translateX(3px)}
    .content-date{color:var(--muted);font-size:13px;border-right:1px solid var(--line);padding-right:18px}
    .content-date strong{display:block;color:var(--forest);font-size:25px;line-height:1.1}
    .content-item h3{font-size:19px;line-height:1.4;margin:0 0 6px}
    .content-item p{color:var(--text);margin:0;font-size:14px}
    .content-meta{display:flex;justify-content:flex-end;align-items:center;gap:9px;flex-wrap:wrap}
    .tag{display:inline-block;background:var(--lime-soft);color:var(--forest);padding:4px 9px;border-radius:5px;font-size:12px;font-weight:700}
    .read-link{color:var(--forest);font-weight:800;font-size:13px}
    .read-link:after{content:" →";color:var(--coral)}
    .empty-state{padding:38px;text-align:center;color:var(--muted);background:#fff;border:1px dashed #c9d5c5;border-radius:12px}
    .feature-banner{display:grid;grid-template-columns:1.2fr .8fr;gap:0;background:var(--coral);color:#fff;border-radius:18px;overflow:hidden;min-height:255px}
    .feature-copy{padding:42px 44px}
    .feature-copy h2{font-size:32px;line-height:1.3;margin:12px 0}
    .feature-copy p{color:#fff3ed;max-width:580px}
    .feature-mark{background:var(--forest);display:grid;place-items:center;position:relative;overflow:hidden}
    .feature-mark:before{content:"内容精选";font-size:58px;font-weight:900;color:rgba(183,217,76,.18);transform:rotate(-12deg)}
    .btn{padding:0 20px}
    .btn-primary{background:var(--lime);color:var(--forest-deep)}
    .btn-primary:hover{background:#c9e765;transform:translateY(-2px);box-shadow:0 8px 18px rgba(183,217,76,.25)}
    .btn-secondary{border:1px solid var(--forest);color:var(--forest);background:transparent}
    .btn-secondary:hover{background:var(--forest);color:#fff;transform:translateY(-2px)}
    .recent-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}
    .date-group{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:26px}
    .date-group h3{font-size:18px;margin:0 0 16px;color:var(--forest)}
    .mini-item{padding:15px 0;border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:16px}
    .mini-item b{font-size:15px}
    .mini-item span{color:var(--muted);font-size:12px;white-space:nowrap}
    .info-card{background:var(--forest);color:#fff;border-radius:var(--radius);padding:30px;box-shadow:var(--shadow)}
    .info-card h3{font-size:23px;margin:0 0 14px;color:var(--lime)}
    .info-card p{color:#d7e3d9;margin:0 0 20px}
    .info-list{margin:0;padding:0;list-style:none}
    .info-list li{border-top:1px solid rgba(255,255,255,.18);padding:13px 0;color:#edf5e7}
    .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .related-card{background:var(--paper);border:1px solid var(--line);padding:24px;border-radius:var(--radius);transition:.25s}
    .related-card:hover{border-color:#abc77a;transform:translateY(-3px);box-shadow:var(--shadow-soft)}
    .related-card h3{font-size:18px;line-height:1.4;margin:15px 0 8px}
    .related-card p{font-size:14px;color:var(--text);margin:0}
    .more-wrap{text-align:center;margin-top:28px}
    .site-footer{background:var(--forest-deep);color:#fff;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.4fr repeat(3,1fr);gap:36px}
    .footer-brand{font-size:21px;font-weight:800;margin-bottom:12px}
    .site-footer p{color:#b9c9bd;font-size:14px;max-width:270px}
    .footer-col{display:flex;flex-direction:column;gap:9px}
    .footer-col h3{font-size:14px;color:var(--lime);margin:0 0 8px}
    .footer-col a{color:#c6d3c9;font-size:13px;transition:.2s}
    .footer-col a:hover{color:var(--lime);padding-left:3px}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.15);margin-top:42px;padding-top:17px;display:flex;justify-content:space-between;gap:20px;color:#9caf9f;font-size:12px}
    :focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    @media(max-width:1024px){.main-nav a{padding:9px 8px}.header-inner{gap:15px}.feature-banner,.recent-grid{grid-template-columns:1fr}.feature-mark{min-height:130px}.content-item{grid-template-columns:90px 1fr}.content-meta{grid-column:2;justify-content:flex-start}}
    @media(max-width:768px){.container{width:min(100% - 32px,var(--container))}.site-header,.header-inner{height:68px}.header-inner{justify-content:space-between}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;background:var(--cream);border-bottom:1px solid var(--line);padding:12px 16px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow-soft)}.main-nav.open{display:flex}.main-nav a{padding:11px 12px}.menu-toggle{display:block}.header-action{padding:9px 12px}.category-hero{padding:62px 0}.section{padding:60px 0}.section-head{display:block}.section-intro{margin-top:15px}.content-item{grid-template-columns:1fr;gap:12px;padding:20px}.content-date{border:0;border-bottom:1px solid var(--line);padding:0 0 12px;display:flex;gap:9px;align-items:baseline}.content-date strong{font-size:22px}.content-meta{grid-column:auto}.related-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-grid>div:first-child{grid-column:1/-1}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}
    @media(max-width:520px){h1{font-size:38px}.hero-text{font-size:16px}.feature-copy{padding:30px 24px}.feature-copy h2{font-size:27px}.feature-mark:before{font-size:42px}.footer-grid{grid-template-columns:1fr}.footer-grid>div:first-child{grid-column:auto}}

/* roulang page: category3 */
:root{
        --forest:#123f35;--forest-deep:#0d2e28;--ink:#182521;--text:#42534d;
        --muted:#75817b;--lime:#b7d94c;--lime-soft:#e9f2bd;--coral:#e98b62;
        --cream:#f5f6f0;--paper:#fff;--line:#dfe6dd;
        --shadow:0 16px 42px rgba(18,63,53,.09);--shadow-soft:0 8px 24px rgba(18,63,53,.06);
        --radius:14px;--container:1200px
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:var(--cream);color:var(--ink);font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;font-size:15px;line-height:1.7}
    a{color:inherit;text-decoration:none}
    a:focus-visible,button:focus-visible{outline:3px solid var(--coral);outline-offset:3px}
    img{display:block;max-width:100%}
    button{font:inherit;border:0;cursor:pointer}
    .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
    .site-header{height:76px;background:rgba(245,246,240,.96);border-bottom:1px solid rgba(18,63,53,.1);position:sticky;top:0;z-index:20;backdrop-filter:blur(12px)}
    .header-inner{height:76px;display:flex;align-items:center;gap:34px}
    .brand{display:flex;align-items:center;gap:11px;white-space:nowrap}
    .brand-mark{width:34px;height:34px;border-radius:9px;background:var(--forest);color:var(--lime);display:grid;place-items:center;font-weight:800;letter-spacing:-1px}
    .brand-name{font-weight:800;font-size:17px;letter-spacing:.02em}
    .main-nav{display:flex;align-items:center;gap:5px;margin-left:auto}
    .main-nav a{padding:9px 13px;color:var(--text);font-size:14px;border-bottom:2px solid transparent;transition:.25s ease}
    .main-nav a:hover,.main-nav a:focus,.main-nav a.active{color:var(--forest);border-bottom-color:var(--lime);font-weight:700}
    .header-action{background:var(--forest);color:#fff;padding:10px 17px;border-radius:8px;font-size:13px;font-weight:700;transition:.25s ease}
    .header-action:hover{background:var(--forest-deep);transform:translateY(-2px)}
    .menu-toggle{display:none;background:none;color:var(--forest);font-size:25px}
    .page-hero{padding:78px 0 72px;background:var(--forest);color:#fff;position:relative;overflow:hidden}
    .page-hero:after{content:"资讯";position:absolute;right:7%;bottom:-45px;font-size:180px;font-weight:900;color:rgba(183,217,76,.08);line-height:1}
    .eyebrow,.section-kicker{color:var(--forest);font-size:12px;font-weight:800;letter-spacing:.16em}
    .page-hero .eyebrow{color:var(--lime)}
    .eyebrow:before{content:"";width:27px;height:3px;background:var(--coral);display:inline-block;margin-right:10px;vertical-align:middle}
    h1,h2,h3,p{margin-top:0}
    h1{font-size:clamp(38px,5vw,66px);line-height:1.13;letter-spacing:-.05em;max-width:760px;margin:18px 0}
    .hero-text{max-width:650px;color:#d9e4dc;font-size:17px}
    .hero-meta{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
    .hero-meta span,.tag{display:inline-block;padding:5px 10px;border-radius:5px;background:var(--lime-soft);color:var(--forest);font-size:12px;font-weight:700}
    .section{padding:86px 0}
    .section-head{display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:34px}
    .section-title{font-size:clamp(27px,3vw,40px);letter-spacing:-.035em;line-height:1.2;margin:8px 0 0}
    .section-intro{max-width:500px;color:var(--muted)}
    .filter-bar{display:flex;flex-wrap:wrap;gap:10px;padding:16px;background:var(--paper);border:1px solid var(--line);border-radius:12px}
    .filter-bar span{padding:9px 15px;border-radius:7px;color:var(--text);background:#f0f3eb;border:1px solid transparent;font-size:13px}
    .filter-bar span.active{background:var(--forest);color:#fff}
    .news-list{border-top:1px solid var(--forest)}
    .news-item{display:grid;grid-template-columns:135px 105px 1fr 34px;gap:22px;align-items:center;padding:25px 4px;border-bottom:1px solid var(--line);transition:.25s ease}
    .news-item:hover{background:#edf2e8;padding-left:16px;padding-right:16px}
    .news-date{font-size:13px;color:var(--muted)}
    .news-category{color:var(--coral);font-size:12px;font-weight:800}
    .news-item h3{font-size:20px;line-height:1.4;margin:0 0 5px}
    .news-item p{color:var(--text);font-size:14px;margin:0}
    .arrow{font-size:21px;color:var(--forest)}
    .empty-state{padding:50px 20px;text-align:center;color:var(--muted);border:1px dashed #bdcbbb;border-top:0;background:var(--paper)}
    .empty-state a{display:inline-block;margin-top:14px;color:var(--forest);font-weight:700;border-bottom:2px solid var(--lime)}
    .feature-news{display:grid;grid-template-columns:1.25fr .75fr;gap:20px}
    .feature-card,.observe-card{border-radius:var(--radius);padding:32px;min-height:260px}
    .feature-card{background:var(--coral);color:#fff;display:flex;flex-direction:column;justify-content:end}
    .feature-card p{color:#fff;max-width:570px}
    .feature-card .tag{background:#fff;color:var(--forest);width:max-content}
    .side-note{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:29px}
    .side-note h3{font-size:21px;margin:15px 0 10px}
    .side-note p{color:var(--text);font-size:14px}
    .notice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .notice{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:24px;transition:.25s}
    .notice:hover{border-color:#abc77a;box-shadow:var(--shadow-soft);transform:translateY(-3px)}
    .notice-date{font-size:26px;font-weight:800;color:var(--forest);line-height:1.2}
    .notice h3{font-size:18px;margin:14px 0 8px}
    .notice p{color:var(--muted);font-size:14px;margin:0}
    .observe-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
    .observe-card{background:#e8efdf;border:1px solid #d3dfca}
    .observe-card h3{font-size:21px;margin:14px 0 8px}
    .observe-card p{color:var(--text);font-size:14px}
    .observe-card a{color:var(--forest);font-weight:700}
    .cta{padding:58px 0;background:var(--forest-deep);color:#fff}
    .cta-inner{display:flex;justify-content:space-between;align-items:center;gap:25px}
    .cta h2{font-size:30px;margin:0 0 8px}
    .cta p{color:#cedbd2;margin:0}
    .btn{display:inline-flex;align-items:center;justify-content:center;min-height:45px;padding:0 20px;border-radius:8px;font-weight:700;transition:.25s}
    .btn-primary{background:var(--lime);color:var(--forest-deep)}
    .btn-primary:hover{background:#c9e765;transform:translateY(-2px);box-shadow:0 8px 18px rgba(183,217,76,.25)}
    .site-footer{background:#17211f;color:#d5e0d8;padding:58px 0 22px}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:35px}
    .footer-brand{color:var(--lime);font-size:21px;font-weight:800;margin-bottom:12px}
    .site-footer p{color:#a9b8af;font-size:13px;max-width:230px}
    .footer-col{display:flex;flex-direction:column;gap:8px}
    .footer-col h3{color:#fff;font-size:14px;margin:0 0 9px}
    .footer-col a{color:#a9b8af;font-size:13px;transition:.2s}
    .footer-col a:hover{color:var(--lime)}
    .footer-bottom{display:flex;justify-content:space-between;gap:15px;border-top:1px solid rgba(255,255,255,.12);margin-top:40px;padding-top:18px;color:#82938a;font-size:12px}
    @media(max-width:1024px){.header-inner{gap:15px}.main-nav a{padding:9px 8px}.header-action{display:none}.news-item{grid-template-columns:110px 90px 1fr 28px}}
    @media(max-width:768px){.container{width:min(var(--container),calc(100% - 32px))}.site-header,.header-inner{height:68px}.main-nav{display:none;position:absolute;top:68px;left:0;right:0;padding:14px 16px;background:var(--paper);border-bottom:1px solid var(--line);box-shadow:var(--shadow-soft);flex-direction:column;align-items:stretch}.main-nav.open{display:flex}.main-nav a{border:0;padding:12px 10px}.menu-toggle{display:block;margin-left:auto}.page-hero{padding:57px 0 60px}.section{padding:62px 0}.section-head,.cta-inner{display:block}.section-intro{margin-top:15px}.news-item{grid-template-columns:1fr 30px;gap:5px 15px;padding:21px 0}.news-date,.news-category{grid-column:1}.news-item h3{grid-column:1;font-size:18px}.news-item p{grid-column:1}.arrow{grid-column:2;grid-row:1 / span 4}.feature-news,.observe-grid{grid-template-columns:1fr}.notice-grid{grid-template-columns:1fr}.cta .btn{margin-top:24px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}.footer-bottom{display:block}.footer-bottom span{display:block;margin-top:8px}}
    @media(max-width:520px){h1{font-size:40px}.hero-text{font-size:15px}.footer-grid{grid-template-columns:1fr}.filter-bar{gap:7px}.filter-bar span{padding:8px 11px}}

/* roulang page: category4 */
:root{
            --forest:#123f35;
            --forest-deep:#0d2e28;
            --ink:#182521;
            --text:#42534d;
            --muted:#75817b;
            --lime:#b7d94c;
            --lime-soft:#e9f2bd;
            --coral:#e98b62;
            --cream:#f5f6f0;
            --paper:#ffffff;
            --line:#dfe6dd;
            --shadow:0 16px 42px rgba(18,63,53,.09);
            --shadow-soft:0 8px 24px rgba(18,63,53,.06);
            --radius:14px;
            --container:1200px;
        }
        *{box-sizing:border-box}
        html{scroll-behavior:smooth}
        body{
            margin:0;
            font-family:"PingFang SC","Microsoft YaHei","Noto Sans CJK SC",Arial,sans-serif;
            background:var(--cream);
            color:var(--ink);
            line-height:1.7;
            font-size:15px;
        }
        a{color:inherit;text-decoration:none}
        img{display:block;max-width:100%}
        button{font:inherit;border:0;cursor:pointer}
        :focus-visible{outline:3px solid rgba(183,217,76,.9);outline-offset:3px}
        .container{width:min(var(--container),calc(100% - 48px));margin:0 auto}
        .site-header{
            height:76px;
            background:rgba(245,246,240,.96);
            border-bottom:1px solid rgba(18,63,53,.1);
            position:sticky;
            top:0;
            z-index:20;
            backdrop-filter:blur(12px);
        }
        .header-inner{height:76px;display:flex;align-items:center;gap:34px}
        .brand{display:flex;align-items:center;gap:11px;white-space:nowrap}
        .brand-mark{
            width:34px;height:34px;border-radius:9px;background:var(--forest);
            color:var(--lime);display:grid;place-items:center;font-weight:800;letter-spacing:-1px
        }
        .brand-name{font-weight:800;font-size:17px;letter-spacing:.02em}
        .main-nav{display:flex;align-items:center;gap:5px;margin-left:auto}
        .main-nav a{
            padding:9px 13px;color:var(--text);font-size:14px;
            border-bottom:2px solid transparent;transition:.25s ease
        }
        .main-nav a:hover,.main-nav a:focus,.main-nav a.active{
            color:var(--forest);border-bottom-color:var(--lime);font-weight:700
        }
        .header-action{
            background:var(--forest);color:#fff;padding:10px 17px;border-radius:8px;
            font-size:13px;font-weight:700;transition:.25s ease
        }
        .header-action:hover{background:var(--forest-deep);transform:translateY(-2px)}
        .menu-toggle{display:none;background:none;color:var(--forest);font-size:25px}
        .page-hero{padding:76px 0 72px;background:var(--cream)}
        .hero-layout{display:grid;grid-template-columns:1.12fr .88fr;gap:64px;align-items:end}
        .eyebrow,.section-kicker{
            color:var(--forest);font-size:12px;font-weight:800;letter-spacing:.16em
        }
        .eyebrow{display:inline-flex;align-items:center;gap:10px;margin-bottom:20px}
        .eyebrow:before{content:"";width:27px;height:3px;background:var(--coral);display:inline-block}
        h1,h2,h3,p{margin-top:0}
        h1{
            max-width:760px;margin-bottom:22px;font-size:clamp(38px,5.4vw,72px);
            letter-spacing:-.065em;line-height:1.08
        }
        .hero-description{max-width:650px;color:var(--text);font-size:17px;margin-bottom:0}
        .hero-note{
            border-left:3px solid var(--lime);padding:18px 0 18px 22px;
            color:var(--text);font-size:14px;background:rgba(255,255,255,.45)
        }
        .hero-note strong{display:block;color:var(--forest);font-size:19px;margin-bottom:7px}
        .section{padding:88px 0}
        .section-head{
            display:flex;justify-content:space-between;align-items:end;gap:25px;margin-bottom:35px
        }
        .section-title{
            font-size:clamp(27px,3vw,40px);letter-spacing:-.035em;line-height:1.2;margin:9px 0 0
        }
        .section-intro{max-width:500px;color:var(--muted);margin:0}
        .download-panel{
            background:var(--forest);color:#fff;border-radius:22px;padding:44px;
            display:grid;grid-template-columns:1.05fr .95fr;gap:42px;
            box-shadow:var(--shadow);overflow:hidden;position:relative
        }
        .download-panel:after{
            content:"PG";position:absolute;right:-22px;bottom:-65px;
            color:rgba(183,217,76,.1);font-size:220px;font-weight:900;line-height:1
        }
        .download-panel > *{position:relative;z-index:1}
        .download-panel h2{font-size:clamp(28px,3vw,43px);line-height:1.2;letter-spacing:-.04em;margin:12px 0 17px}
        .download-panel p{color:#d5e0d8;max-width:520px}
        .panel-kicker{color:var(--lime);font-size:12px;letter-spacing:.15em;font-weight:800}
        .download-meta{display:flex;gap:28px;margin:27px 0}
        .download-meta b{display:block;color:var(--lime);font-size:19px;line-height:1.3}
        .download-meta span{font-size:12px;color:#b8c9bf}
        .download-actions{display:flex;flex-wrap:wrap;gap:12px}
        .btn{
            display:inline-flex;align-items:center;justify-content:center;min-height:45px;
            padding:0 20px;border-radius:8px;font-weight:700;transition:.25s ease
        }
        .btn-primary{background:var(--lime);color:var(--forest-deep)}
        .btn-primary:hover{background:#c9e765;transform:translateY(-2px);box-shadow:0 8px 18px rgba(183,217,76,.25)}
        .btn-secondary{border:1px solid var(--forest);color:var(--forest);background:transparent}
        .btn-secondary:hover{background:var(--forest);color:#fff;transform:translateY(-2px)}
        .btn-light{background:#fff;color:var(--forest)}
        .btn-light:hover{background:var(--lime);transform:translateY(-2px)}
        .device-stage{min-height:315px;display:flex;align-items:center;justify-content:center}
        .device{
            width:190px;height:330px;border:7px solid #091f1b;border-radius:27px;
            background:#f3f5e9;box-shadow:0 20px 40px rgba(0,0,0,.25);
            padding:27px 12px 13px;position:relative;transform:rotate(5deg)
        }
        .device:before{content:"";position:absolute;top:9px;left:50%;transform:translateX(-50%);width:62px;height:6px;border-radius:5px;background:#091f1b}
        .device-screen{height:100%;border-radius:15px;background:#e7edd4;padding:13px;color:var(--forest)}
        .device-brand{font-size:12px;font-weight:800;margin-bottom:16px}
        .device-cover{height:103px;border-radius:10px;background:linear-gradient(145deg,#315f4d,#afca55);margin-bottom:13px;padding:12px;color:#fff}
        .device-cover b{display:block;font-size:19px;line-height:1.25}
        .device-line{height:8px;border-radius:5px;background:#c3d18f;margin:10px 0}
        .device-line.short{width:58%}
        .device-button{height:29px;border-radius:7px;background:var(--forest);margin-top:18px}
        .info-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .info-card{
            background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
            padding:27px;min-height:170px;transition:.25s ease
        }
        .info-card:hover{border-color:#abc77a;box-shadow:var(--shadow-soft);transform:translateY(-3px)}
        .info-number{font-size:32px;color:var(--coral);font-weight:800;line-height:1;margin-bottom:21px}
        .info-card h3{font-size:19px;margin-bottom:8px}
        .info-card p{color:var(--text);font-size:14px;margin:0}
        .channel-layout{display:grid;grid-template-columns:1.2fr .8fr;gap:20px}
        .channel-card,.qr-card{
            background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);padding:30px
        }
        .channel-card h3,.qr-card h3{font-size:22px;margin-bottom:11px}
        .channel-card p,.qr-card p{color:var(--text);font-size:14px}
        .channel-row{
            display:flex;justify-content:space-between;align-items:center;
            gap:18px;padding:17px 0;border-bottom:1px solid var(--line)
        }
        .channel-row:last-child{border-bottom:0;padding-bottom:0}
        .channel-row strong{display:block;font-size:16px}
        .channel-row small{color:var(--muted);font-size:12px}
        .channel-status{
            color:var(--forest);background:var(--lime-soft);border-radius:6px;
            padding:7px 10px;font-size:12px;font-weight:700;white-space:nowrap
        }
        .qr-card{background:#edf2df;display:flex;flex-direction:column;justify-content:space-between}
        .qr-box{
            width:148px;height:148px;margin:18px auto 12px;background:
            linear-gradient(90deg,var(--forest) 10px,transparent 10px) 0 0/28px 28px,
            linear-gradient(var(--forest) 10px,transparent 10px) 0 0/28px 28px,
            linear-gradient(45deg,transparent 42%,var(--forest) 43%,var(--forest) 57%,transparent 58%) 0 0/25px 25px;
            border:12px solid #fff;box-shadow:0 8px 20px rgba(18,63,53,.1)
        }
        .qr-caption{text-align:center;color:var(--forest);font-weight:700;font-size:13px}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--line)}
        .step{padding:27px 24px 14px 0;border-bottom:1px solid var(--line);position:relative}
        .step:not(:last-child){margin-right:24px}
        .step:not(:last-child):after{
            content:"→";position:absolute;right:2px;top:31px;color:var(--coral);font-size:24px
        }
        .step-index{
            width:34px;height:34px;border-radius:8px;background:var(--lime-soft);
            color:var(--forest);display:grid;place-items:center;font-weight:800;margin-bottom:18px
        }
        .step h3{font-size:17px;margin-bottom:8px}
        .step p{color:var(--text);font-size:14px;margin:0}
        .version-list{border-top:1px solid var(--line)}
        .version-item{
            display:grid;grid-template-columns:110px 120px 1fr;gap:20px;
            align-items:center;padding:21px 0;border-bottom:1px solid var(--line)
        }
        .version-date{color:var(--muted);font-size:13px}
        .version-tag{
            display:inline-block;width:max-content;background:var(--lime-soft);
            color:var(--forest);padding:5px 9px;border-radius:5px;font-size:12px;font-weight:800
        }
        .version-item p{margin:0;color:var(--text);font-size:14px}
        .device-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .device-card{
            background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);
            padding:27px;display:flex;gap:17px;align-items:flex-start
        }
        .device-icon{
            width:43px;height:43px;border-radius:10px;background:var(--forest);
            color:var(--lime);display:grid;place-items:center;font-weight:800;font-size:13px;flex:none
        }
        .device-card h3{font-size:17px;margin-bottom:7px}
        .device-card p{font-size:13px;color:var(--text);margin:0}
        .faq-list{max-width:880px;border-top:1px solid var(--line)}
        .faq-item{border-bottom:1px solid var(--line)}
        .faq-question{
            width:100%;background:transparent;padding:21px 0;display:flex;
            justify-content:space-between;align-items:center;text-align:left;color:var(--ink);
            font-size:16px;font-weight:700
        }
        .faq-question span:last-child{font-size:22px;color:var(--coral);font-weight:400}
        .faq-answer{display:none;padding:0 42px 20px 0;color:var(--text);font-size:14px}
        .faq-item.open .faq-answer{display:block}
        .faq-item.open .faq-question span:last-child{transform:rotate(45deg)}
        .closing-band{padding:65px 0;background:var(--coral);color:#fff}
        .closing-inner{display:flex;justify-content:space-between;align-items:center;gap:30px}
        .closing-band h2{font-size:clamp(27px,3vw,40px);line-height:1.2;margin-bottom:10px}
        .closing-band p{margin:0;color:#fff5ef}
        .site-footer{padding:58px 0 22px;background:#17211f;color:#d7e1da}
        .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:38px;padding-bottom:45px}
        .footer-brand{color:#fff;font-weight:800;font-size:19px;margin-bottom:12px}
        .footer-grid p{color:#aebdb3;font-size:13px;max-width:245px}
        .footer-col{display:flex;flex-direction:column;gap:8px}
        .footer-col h3{color:var(--lime);font-size:13px;margin-bottom:8px}
        .footer-col a{color:#c3d0c8;font-size:13px;transition:.2s ease}
        .footer-col a:hover{color:var(--lime);padding-left:3px}
        .footer-bottom{
            border-top:1px solid rgba(255,255,255,.12);padding-top:19px;
            display:flex;justify-content:space-between;gap:18px;color:#93a49a;font-size:12px
        }
        @media (max-width:1024px){
            .hero-layout,.download-panel,.channel-layout{grid-template-columns:1fr}
            .hero-note{max-width:620px}
            .main-nav{gap:0}
            .main-nav a{padding-left:9px;padding-right:9px}
            .header-inner{gap:15px}
        }
        @media (max-width:768px){
            .container{width:min(var(--container),calc(100% - 32px))}
            .site-header,.header-inner{height:68px}
            .main-nav{
                display:none;position:absolute;top:68px;left:0;right:0;
                background:var(--paper);border-bottom:1px solid var(--line);
                padding:10px 16px;flex-direction:column;align-items:stretch;box-shadow:var(--shadow-soft)
            }
            .main-nav.show{display:flex}
            .main-nav a{padding:12px 10px;border-bottom:1px solid var(--line)}
            .menu-toggle{display:block;margin-left:auto}
            .header-action{font-size:12px;padding:9px 12px}
            .page-hero{padding:55px 0 50px}
            .section{padding:60px 0}
            .section-head{display:block;margin-bottom:25px}
            .section-intro{margin-top:13px}
            .download-panel{padding:29px 23px;gap:12px}
            .device-stage{min-height:270px}
            .info-grid,.device-grid{grid-template-columns:1fr}
            .channel-card,.qr-card{padding:23px}
            .steps{grid-template-columns:1fr}
            .step{padding:22px 0;border-bottom:1px solid var(--line)}
            .step:not(:last-child){margin-right:0}
            .step:not(:last-child):after{content:"↓";right:10px;top:auto;bottom:-16px;z-index:2}
            .version-item{grid-template-columns:1fr;gap:8px;padding:18px 0}
            .closing-inner{display:block}
            .closing-inner .btn{margin-top:22px}
            .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
            .footer-bottom{display:block}
            .footer-bottom span{display:block;margin-top:8px}
        }
        @media (max-width:520px){
            h1{font-size:42px}
            .brand-name{font-size:15px}
            .header-action{display:none}
            .hero-description{font-size:15px}
            .download-meta{gap:18px;flex-wrap:wrap}
            .download-actions .btn{width:100%}
            .channel-row{align-items:flex-start;flex-direction:column;gap:9px}
            .qr-box{width:132px;height:132px}
            .footer-grid{grid-template-columns:1fr}
        }