/* roulang page: index */
:root{
            --orange:#f5a623;
            --orange-deep:#dc7816;
            --green:#102b25;
            --green-2:#173d32;
            --ink:#18221e;
            --muted:#6f7972;
            --cream:#fbf7ef;
            --paper:#fffdf8;
            --line:#e9e3d8;
            --soft:#f4eee3;
            --shadow:0 18px 45px rgba(24,44,34,.10);
            --shadow-sm:0 8px 24px rgba(24,44,34,.08);
            --radius:22px;
        }
        *{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;line-height:1.75}
        a{color:inherit;text-decoration:none}
        img{max-width:100%;display:block}
        button,input{font:inherit}
        .container{max-width:1180px}
        .site-header{position:sticky;top:0;z-index:1000;background:rgba(251,247,239,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(233,227,216,.9)}
        .navbar{min-height:76px}
        .brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:1.25rem;letter-spacing:.02em;color:var(--green)}
        .brand-mark{width:34px;height:34px;border-radius:12px 12px 12px 5px;background:var(--orange);display:grid;place-items:center;color:var(--green);font-size:15px;box-shadow:inset -4px -4px 0 rgba(220,120,22,.22)}
        .nav-link{font-weight:700;color:#536058!important;padding:.65rem .9rem!important;border-radius:10px;transition:.25s}
        .nav-link:hover,.nav-link.active{color:var(--green)!important;background:#f2e8d5}
        .nav-search{border:1px solid var(--line);border-radius:999px;padding:9px 14px 9px 17px;background:#fffdf8;display:flex;gap:8px}
        .nav-search input{border:0;outline:0;background:transparent;width:120px;font-size:.88rem}
        .nav-search button{border:0;background:var(--green);color:white;border-radius:50%;width:30px;height:30px;font-size:.8rem}
        .btn-brand{background:var(--orange);color:var(--green);border:0;border-radius:999px;padding:12px 22px;font-weight:800;transition:.25s;box-shadow:0 8px 18px rgba(245,166,35,.22)}
        .btn-brand:hover{background:#ffb837;color:var(--green);transform:translateY(-2px)}
        .btn-darkgreen{background:var(--green);color:#fff;border:0;border-radius:999px;padding:12px 22px;font-weight:800;transition:.25s}
        .btn-darkgreen:hover{background:var(--green-2);color:#fff;transform:translateY(-2px)}
        :focus-visible{outline:3px solid rgba(245,166,35,.65);outline-offset:3px}
        .hero{position:relative;min-height:600px;display:flex;align-items:center;overflow:hidden;background:var(--green)}
        .hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,43,37,.95) 0%,rgba(16,43,37,.78) 48%,rgba(16,43,37,.18) 100%),url('/assets/images/43529bf60be7772d.jpg') center/cover}
        .hero .container{position:relative;z-index:1}
        .eyebrow{color:var(--orange);font-size:.82rem;font-weight:900;letter-spacing:.16em;text-transform:uppercase}
        .hero h1{color:#fffdf8;font-size:clamp(2.5rem,5vw,5.25rem);line-height:1.08;letter-spacing:-.05em;font-weight:900;max-width:720px;margin:18px 0}
        .hero p{color:#e9eee7;max-width:650px;font-size:1.08rem;line-height:1.9}
        .hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-top:28px}
        .hero-note{display:flex;gap:18px;margin-top:42px;align-items:center;color:#d5dfd7;font-size:.9rem}
        .pulse-ring{width:68px;height:68px;border:2px solid var(--orange);border-radius:50%;display:grid;place-items:center;position:relative;color:var(--orange);font-weight:900;font-size:.78rem}
        .pulse-ring:after{content:"";position:absolute;inset:7px;border:1px dashed rgba(245,166,35,.7);border-radius:50%}
        section{padding:92px 0}
        .section-head{margin-bottom:38px;max-width:700px}
        .section-kicker{color:var(--orange-deep);font-weight:900;font-size:.78rem;letter-spacing:.12em}
        h2{font-size:clamp(1.8rem,3vw,3rem);line-height:1.2;letter-spacing:-.04em;font-weight:900;margin:8px 0 14px;color:var(--green)}
        .section-head p{color:var(--muted);font-size:1rem;margin:0}
        .soft-section{background:var(--soft)}
        .problem-strip{display:grid;grid-template-columns:1.2fr 2fr;gap:40px;align-items:center}
        .problem-title{font-size:2rem;font-weight:900;line-height:1.3;color:var(--green)}
        .issue-list{display:flex;flex-wrap:wrap;gap:12px}
        .issue-list span,.tag{border:1px solid #ded6c8;background:#fffaf0;border-radius:999px;padding:10px 16px;color:#5f675f;font-weight:700}
        .entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
        .entry-card{padding:26px;background:var(--paper);border-radius:var(--radius);border:1px solid var(--line);transition:.3s;min-height:190px;display:flex;flex-direction:column;justify-content:space-between}
        .entry-card:hover,.video-card:hover,.feature-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
        .entry-number{color:var(--orange-deep);font-size:.8rem;font-weight:900}
        .entry-card h3{font-size:1.35rem;color:var(--green);margin:14px 0 6px;font-weight:900}
        .entry-card p{font-size:.9rem;color:var(--muted);margin:0}
        .entry-card .arrow{align-self:flex-end;color:var(--orange-deep);font-size:1.35rem}
        .video-grid{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:20px;align-items:start}
        .video-card{background:var(--paper);border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:.3s}
        .video-card.large{grid-row:span 2}
        .cover{height:190px;position:relative;overflow:hidden;background:#d9c8a7}
        .video-card.large .cover{height:420px}
        .cover img{width:100%;height:100%;object-fit:cover;transition:.5s}
        .video-card:hover img{transform:scale(1.04)}
        .cover:after{content:"▶";position:absolute;left:18px;bottom:16px;width:38px;height:38px;border-radius:50%;display:grid;place-items:center;background:var(--orange);color:var(--green);font-size:.8rem}
        .duration{position:absolute;right:12px;bottom:12px;background:rgba(16,43,37,.85);color:#fff;padding:3px 8px;border-radius:6px;font-size:.75rem}
        .card-body{padding:19px 20px}
        .card-body h3{font-size:1.08rem;line-height:1.45;margin:0 0 8px;font-weight:900;color:var(--green)}
        .card-body p{font-size:.86rem;color:var(--muted);margin:0}
        .meta{display:flex;gap:10px;color:#8a918a;font-size:.78rem;margin-top:12px}
        .feature-layout{display:grid;grid-template-columns:1.4fr .8fr;gap:22px}
        .feature-card{background:var(--green);border-radius:var(--radius);overflow:hidden;color:white;transition:.3s;position:relative}
        .feature-card img{height:370px;width:100%;object-fit:cover;opacity:.75}
        .feature-overlay{position:absolute;inset:auto 0 0;padding:30px;background:linear-gradient(transparent,rgba(16,43,37,.98))}
        .feature-overlay h3{font-size:1.8rem;margin:0 0 8px}
        .mini-stack{display:grid;gap:18px}
        .mini-feature{display:flex;gap:15px;background:var(--paper);padding:14px;border:1px solid var(--line);border-radius:18px}
        .mini-feature img{width:115px;height:105px;object-fit:cover;border-radius:13px}
        .mini-feature h3{font-size:1rem;line-height:1.4;margin:4px 0;color:var(--green)}
        .solution{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:center}
        .solution img{width:100%;height:360px;object-fit:cover;border-radius:26px;box-shadow:var(--shadow)}
        .solution-copy p{color:var(--muted)}
        .check-list{list-style:none;padding:0;margin:25px 0 0}
        .check-list li{padding:12px 0;border-bottom:1px solid var(--line);font-weight:700}
        .check-list li:before{content:"✓";color:var(--orange-deep);font-weight:900;margin-right:12px}
        .steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:2px solid var(--orange);padding-top:24px}
        .step{padding:0 20px;border-left:1px solid var(--line);min-height:150px}
        .step:first-child{border-left:0;padding-left:0}
        .step-num{font-size:2.5rem;font-weight:900;color:var(--orange-deep);line-height:1}
        .step h3{font-size:1.1rem;margin:17px 0 6px;color:var(--green)}
        .step p{font-size:.88rem;color:var(--muted);margin:0}
        .quality{background:var(--green);color:#fff;padding:68px 0}
        .quality h2{color:#fff}
        .quality p{color:#c9d8ce}
        .quality-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
        .quality-item{padding:25px 0;border-top:1px solid rgba(255,255,255,.25)}
        .quality-item strong{display:block;color:var(--orange);font-size:2rem;line-height:1.2}
        .quality-item span{color:#d2ddd4}
        .scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px}
        .scene{min-height:245px;border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;justify-content:end;color:#fff;background-size:cover;background-position:center;position:relative;overflow:hidden}
        .scene:before{content:"";position:absolute;inset:0;background:linear-gradient(transparent,rgba(16,43,37,.9))}
        .scene>*{position:relative}
        .scene h3{font-size:1.4rem;margin:0 0 6px}
        .scene p{margin:0;color:#e8eee8;font-size:.9rem}
        .list-layout{display:grid;grid-template-columns:1fr 1fr;gap:16px}
        .editor-row{display:flex;gap:18px;align-items:center;padding:16px 0;border-bottom:1px solid var(--line)}
        .editor-row img{width:130px;height:88px;border-radius:14px;object-fit:cover}
        .editor-row h3{font-size:1rem;margin:0 0 5px;color:var(--green)}
        .editor-row p{margin:0;color:var(--muted);font-size:.84rem}
        .quote-box{background:#f2e6cf;border-radius:28px;padding:40px;max-width:850px;margin:auto;text-align:center}
        .quote-box blockquote{font-size:1.35rem;line-height:1.7;color:var(--green);font-weight:800;margin:0 0 16px}
        .quote-box small{color:var(--muted)}
        .faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:14px}
        .accordion-item{border:1px solid var(--line)!important;border-radius:14px!important;overflow:hidden;background:var(--paper);margin-bottom:12px}
        .accordion-button{background:var(--paper)!important;color:var(--green)!important;font-weight:800;box-shadow:none!important;padding:20px}
        .accordion-body{color:var(--muted);font-size:.92rem;padding:0 20px 20px}
        .article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
        .article-card{background:var(--paper);padding:24px;border-radius:20px;border:1px solid var(--line)}
        .article-card time{color:var(--orange-deep);font-size:.78rem;font-weight:800}
        .article-card h3{font-size:1.15rem;line-height:1.5;color:var(--green);margin:14px 0 8px}
        .article-card p{font-size:.88rem;color:var(--muted);margin:0}
        .final-cta{padding:70px 0;background:var(--orange)}
        .final-cta .inner{display:flex;justify-content:space-between;gap:30px;align-items:center}
        .final-cta h2{margin:0;color:var(--green)}
        .final-cta p{margin:8px 0 0;color:#5c461d}
        .site-footer{background:var(--green);color:#d8e2d8;padding:58px 0 25px}
        .site-footer .brand{color:#fff}
        .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:45px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.16)}
        .footer-intro{color:#b9c9bc;max-width:340px;font-size:.9rem}
        .footer-title{color:var(--orange);font-weight:900;margin-bottom:14px}
        .footer-links{display:flex;flex-direction:column;gap:8px;color:#c8d5ca;font-size:.9rem}
        .footer-links a:hover{color:var(--orange)}
        .copyright{display:flex;justify-content:space-between;gap:20px;padding-top:22px;color:#9fb1a3;font-size:.8rem}
        @media(max-width:992px){
            .nav-search{display:none}.hero{min-height:560px}.video-grid{grid-template-columns:1fr 1fr}.video-card.large{grid-row:auto;grid-column:span 2}.video-card.large .cover{height:300px}
            .feature-layout,.solution{grid-template-columns:1fr}.steps{grid-template-columns:repeat(2,1fr);gap:25px}.step:nth-child(3){border-left:0;padding-left:0}.quality-grid{grid-template-columns:repeat(3,1fr)}
        }
        @media(max-width:768px){
            section{padding:68px 0}.entry-grid,.article-grid{grid-template-columns:1fr}.problem-strip{grid-template-columns:1fr;gap:24px}.scene-grid,.list-layout,.faq-grid{grid-template-columns:1fr}
            .video-grid{grid-template-columns:1fr}.video-card.large{grid-column:auto}.video-card.large .cover{height:240px}.quality-grid{grid-template-columns:1fr 1fr}.final-cta .inner{display:block}.final-cta .btn-darkgreen{margin-top:22px}.footer-grid{grid-template-columns:1fr 1fr}.copyright{display:block}.copyright span{display:block;margin-top:8px}
        }
        @media(max-width:520px){
            .navbar{min-height:68px}.brand{font-size:1.05rem}.hero h1{font-size:2.55rem}.hero p{font-size:.98rem}.hero-note{margin-top:30px}.steps{grid-template-columns:1fr}.step{border-left:0!important;padding-left:0!important;min-height:auto}.quality-grid{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.mini-feature img{width:95px;height:85px}
        }

/* roulang page: category1 */
:root{
 --orange:#f5a623;--orange-deep:#dc7816;--green:#102b25;--green-2:#173d32;
 --ink:#18221e;--muted:#6f7972;--cream:#fbf7ef;--paper:#fffdf8;
 --line:#e9e3d8;--soft:#f4eee3;--shadow:0 18px 45px rgba(24,44,34,.10);
 --shadow-sm:0 8px 24px rgba(24,44,34,.08);--radius:22px
}
*{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;line-height:1.75}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input{font:inherit}
.container{max-width:1180px}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(251,247,239,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(233,227,216,.9)}
.navbar{min-height:76px}
.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:1.25rem;letter-spacing:.02em;color:var(--green)}
.brand-mark{width:34px;height:34px;border-radius:12px 12px 12px 5px;background:var(--orange);display:grid;place-items:center;color:var(--green);font-size:15px;box-shadow:inset -4px -4px 0 rgba(220,120,22,.22)}
.nav-link{font-weight:700;color:#536058!important;padding:.65rem .9rem!important;border-radius:10px;transition:.25s}
.nav-link:hover,.nav-link.active{color:var(--green)!important;background:#f2e8d5}
.nav-search{border:1px solid var(--line);border-radius:999px;padding:9px 14px 9px 17px;background:#fffdf8;display:flex;gap:8px}
.nav-search input{border:0;outline:0;background:transparent;width:120px;font-size:.88rem}
.nav-search button{border:0;background:var(--green);color:#fff;border-radius:50%;width:30px;height:30px;font-size:.8rem}
.btn-brand,.btn-darkgreen{display:inline-flex;align-items:center;justify-content:center;border-radius:999px;padding:12px 22px;font-weight:800;transition:.25s}
.btn-brand{background:var(--orange);color:var(--green);border:0;box-shadow:0 8px 18px rgba(245,166,35,.22)}
.btn-brand:hover{background:#ffb837;color:var(--green);transform:translateY(-2px)}
.btn-darkgreen{background:var(--green);color:#fff;border:0}
.btn-darkgreen:hover{background:var(--green-2);color:#fff;transform:translateY(-2px)}
.btn-brand:focus-visible,.btn-darkgreen:focus-visible,.nav-link:focus-visible,.nav-search input:focus-visible{outline:3px solid rgba(245,166,35,.6);outline-offset:3px}
.page-banner{position:relative;min-height:350px;display:flex;align-items:center;overflow:hidden;background:var(--green);color:#fff}
.page-banner:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,43,37,.96),rgba(16,43,37,.65),rgba(16,43,37,.28)),url('/assets/images/08d212a7a6f4dc1a.jpg') center/cover}
.page-banner .container{position:relative;z-index:1}
.eyebrow,.section-kicker{color:var(--orange-deep);font-size:.78rem;font-weight:900;letter-spacing:.14em}
.page-banner .eyebrow{color:var(--orange)}
.page-banner h1{font-size:clamp(2.3rem,5vw,4.5rem);line-height:1.1;letter-spacing:-.045em;font-weight:900;margin:16px 0}
.page-banner p{max-width:650px;color:#e8eee8;font-size:1.05rem;margin:0}
.breadcrumb-line{font-size:.86rem;color:#d6e0d7;margin-top:28px}
section{padding:82px 0}
.section-head{margin-bottom:34px;max-width:720px}
.section-head h2{font-size:clamp(1.75rem,3vw,2.5rem);line-height:1.25;color:var(--green);font-weight:900;margin:10px 0 12px}
.section-head p{color:var(--muted);margin:0}
.filter-bar{display:flex;flex-wrap:wrap;gap:10px;align-items:center;padding:18px;background:var(--paper);border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow-sm)}
.filter-label{font-weight:900;color:var(--green);margin-right:5px}
.filter-chip{border:1px solid #ded6c8;background:#fffaf0;border-radius:999px;padding:9px 15px;color:#606b62;font-weight:700;font-size:.9rem}
.filter-chip.active{background:var(--green);border-color:var(--green);color:#fff}
.video-grid{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:20px;align-items:start}
.video-card{background:var(--paper);border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:.3s}
.video-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}
.video-card.large{grid-row:span 2}
.cover{height:210px;overflow:hidden;position:relative;background:var(--soft)}
.video-card.large .cover{height:430px}
.cover img{width:100%;height:100%;object-fit:cover;transition:.5s}
.video-card:hover .cover img{transform:scale(1.04)}
.play-dot{position:absolute;left:18px;bottom:16px;width:42px;height:42px;border-radius:50%;display:grid;place-items:center;background:var(--orange);color:var(--green);font-weight:900;box-shadow:0 8px 18px rgba(0,0,0,.18)}
.card-body{padding:19px 20px}
.card-body h3{font-size:1.08rem;line-height:1.45;margin:0 0 8px;font-weight:900;color:var(--green)}
.card-body p{font-size:.87rem;color:var(--muted);margin:0}
.meta{display:flex;gap:10px;flex-wrap:wrap;color:#8a918a;font-size:.78rem;margin-top:12px}
.tag{display:inline-block;border:1px solid #ded6c8;background:#fffaf0;border-radius:999px;padding:5px 10px;color:#6b746c;font-size:.76rem;font-weight:700}
.soft-section{background:var(--soft)}
.feature-layout{display:grid;grid-template-columns:1.35fr .85fr;gap:22px}
.feature-card{position:relative;overflow:hidden;min-height:380px;border-radius:var(--radius);background:var(--green);color:#fff;box-shadow:var(--shadow)}
.feature-card img{width:100%;height:100%;min-height:380px;object-fit:cover;opacity:.72}
.feature-overlay{position:absolute;inset:auto 0 0;padding:32px;background:linear-gradient(transparent,rgba(16,43,37,.98))}
.feature-overlay h3{font-size:1.8rem;line-height:1.3;margin:8px 0;font-weight:900}
.feature-overlay p{color:#dce7df;margin:0;max-width:580px}
.mini-list{display:flex;flex-direction:column;gap:14px}
.mini-feature{display:flex;gap:15px;background:var(--paper);padding:14px;border:1px solid var(--line);border-radius:18px;transition:.25s}
.mini-feature:hover{transform:translateX(4px);box-shadow:var(--shadow-sm)}
.mini-feature img{width:112px;height:96px;object-fit:cover;border-radius:13px}
.mini-feature h3{font-size:1rem;line-height:1.4;margin:4px 0;color:var(--green);font-weight:900}
.mini-feature p{font-size:.82rem;color:var(--muted);margin:0}
.topic-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.topic-card{padding:22px;background:var(--paper);border:1px solid var(--line);border-radius:18px;min-height:145px;transition:.25s}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-sm)}
.topic-no{font-size:.8rem;color:var(--orange-deep);font-weight:900}
.topic-card h3{font-size:1.1rem;color:var(--green);font-weight:900;margin:16px 0 4px}
.topic-card p{font-size:.84rem;color:var(--muted);margin:0}
.route-box{display:grid;grid-template-columns:1fr 1.1fr;gap:40px;align-items:center}
.route-box img{height:320px;width:100%;object-fit:cover;border-radius:26px;box-shadow:var(--shadow)}
.route-list{list-style:none;padding:0;margin:0}
.route-list li{display:flex;gap:17px;padding:17px 0;border-bottom:1px solid var(--line)}
.route-list strong{display:grid;place-items:center;flex:0 0 34px;height:34px;border-radius:50%;background:var(--orange);color:var(--green)}
.route-list h3{font-size:1rem;color:var(--green);margin:0 0 3px;font-weight:900}
.route-list p{font-size:.86rem;color:var(--muted);margin:0}
.extension{display:grid;grid-template-columns:1.1fr .9fr;gap:20px}
.editor-list{background:var(--paper);border-radius:var(--radius);padding:12px 24px;border:1px solid var(--line)}
.editor-row{display:flex;justify-content:space-between;gap:18px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}
.editor-row:last-child{border-bottom:0}
.editor-row h3{font-size:1rem;color:var(--green);margin:0 0 4px;font-weight:900}
.editor-row p{font-size:.82rem;color:var(--muted);margin:0}
.editor-date{color:#9a8d77;font-size:.78rem;white-space:nowrap}
.cta-band{background:var(--green);color:#fff;padding:46px;border-radius:var(--radius);display:flex;align-items:center;justify-content:space-between;gap:25px}
.cta-band h2{font-size:clamp(1.5rem,3vw,2.2rem);margin:0 0 8px;font-weight:900}
.cta-band p{color:#d8e3da;margin:0}
.site-footer{background:var(--green);color:#eaf0e9;padding:64px 0 24px}
.site-footer .brand{color:#fff}
.footer-grid{display:grid;grid-template-columns:1.5fr .7fr .7fr;gap:50px}
.footer-intro{color:#b9c9bd;max-width:430px;font-size:.92rem}
.footer-title{font-weight:900;color:var(--orange);margin-bottom:15px}
.footer-links{display:flex;flex-direction:column;gap:10px}
.footer-links a{color:#d3ded5;font-size:.9rem;transition:.2s}
.footer-links a:hover{color:var(--orange);padding-left:4px}
.copyright{display:flex;justify-content:space-between;border-top:1px solid rgba(255,255,255,.16);margin-top:45px;padding-top:20px;color:#aebdb2;font-size:.8rem}
@media(max-width:992px){
 .nav-search{margin:12px 0 8px}.video-grid{grid-template-columns:1fr 1fr}.video-card.large{grid-row:auto}.video-card.large .cover{height:280px}
 .feature-layout,.route-box,.extension{grid-template-columns:1fr}.topic-strip{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
 section{padding:62px 0}.page-banner{min-height:330px}.footer-grid{grid-template-columns:1fr 1fr;gap:28px}
 .video-grid{grid-template-columns:1fr}.cover,.video-card.large .cover{height:260px}.cta-band{display:block;padding:32px}.cta-band .btn-brand{margin-top:22px}
}
@media(max-width:520px){
 .navbar{min-height:68px}.page-banner h1{font-size:2.45rem}.topic-strip,.footer-grid{grid-template-columns:1fr}
 .filter-bar{align-items:flex-start}.filter-label{width:100%}.route-box img{height:230px}.copyright{display:block}.copyright span{display:block;margin-top:6px}
}

/* roulang page: category2 */
:root{
 --orange:#f5a623;--orange-deep:#dc7816;--green:#102b25;--green-2:#173d32;
 --ink:#18221e;--muted:#6f7972;--cream:#fbf7ef;--paper:#fffdf8;
 --line:#e9e3d8;--soft:#f4eee3;--shadow:0 18px 45px rgba(24,44,34,.10);
 --shadow-sm:0 8px 24px rgba(24,44,34,.08);--radius:22px
}
*{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;line-height:1.75}
a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input{font:inherit}
.container{max-width:1180px}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(251,247,239,.94);backdrop-filter:blur(14px);border-bottom:1px solid rgba(233,227,216,.9)}
.navbar{min-height:76px}.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:1.25rem;letter-spacing:.02em;color:var(--green)}
.brand-mark{width:34px;height:34px;border-radius:12px 12px 12px 5px;background:var(--orange);display:grid;place-items:center;color:var(--green);font-size:15px;box-shadow:inset -4px -4px 0 rgba(220,120,22,.22)}
.nav-link{font-weight:700;color:#536058!important;padding:.65rem .9rem!important;border-radius:10px;transition:.25s}
.nav-link:hover,.nav-link.active{color:var(--green)!important;background:#f2e8d5}
.nav-search{border:1px solid var(--line);border-radius:999px;padding:9px 14px 9px 17px;background:#fffdf8;display:flex;gap:8px}
.nav-search input{border:0;outline:0;background:transparent;width:120px;font-size:.88rem}
.nav-search button{border:0;background:var(--green);color:white;border-radius:50%;width:30px;height:30px;font-size:.8rem}
.btn-brand,.btn-darkgreen{border:0;border-radius:999px;padding:12px 22px;font-weight:800;transition:.25s}
.btn-brand{background:var(--orange);color:var(--green);box-shadow:0 8px 18px rgba(245,166,35,.22)}
.btn-brand:hover{background:#ffb837;color:var(--green);transform:translateY(-2px)}
.btn-darkgreen{background:var(--green);color:#fff}.btn-darkgreen:hover{background:var(--green-2);color:#fff;transform:translateY(-2px)}
:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
.page-hero{padding:74px 0 68px;background:var(--green);position:relative;overflow:hidden}
.page-hero:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,43,37,.97),rgba(16,43,37,.7)),url('/assets/images/08d212a7a6f4dc1a.jpg') center/cover}
.page-hero .container{position:relative;z-index:1}.crumb{color:#c9d5ca;font-size:.86rem;margin-bottom:22px}.crumb a{color:var(--orange)}
.page-hero h1{color:#fffdf8;font-size:clamp(2.5rem,6vw,5rem);line-height:1.08;letter-spacing:-.05em;font-weight:900;margin:0 0 18px}
.page-hero p{color:#e4ebe3;max-width:690px;font-size:1.08rem;margin:0}
.coupon-wrap{margin-top:34px;display:flex;gap:18px;align-items:stretch;max-width:690px}
.coupon-card{background:#fff9ed;color:var(--green);border-radius:22px;padding:21px 25px;position:relative;flex:1;border-left:8px solid var(--orange);box-shadow:var(--shadow)}
.coupon-card:after{content:"";position:absolute;right:-9px;top:15px;bottom:15px;border-right:2px dashed #d9c7a5}
.coupon-card small{color:var(--orange-deep);font-weight:900;letter-spacing:.12em}.coupon-card strong{display:block;font-size:1.45rem;line-height:1.3;margin:5px 0}
.coupon-card span{font-size:.88rem;color:var(--muted)}
.page-hero .btn-brand{align-self:center;white-space:nowrap}
section{padding:82px 0}.soft-section{background:var(--soft)}
.section-head{margin-bottom:34px;max-width:720px}.section-kicker{color:var(--orange-deep);font-size:.78rem;font-weight:900;letter-spacing:.14em}
.section-head h2{font-size:clamp(1.8rem,3vw,2.7rem);line-height:1.25;color:var(--green);font-weight:900;margin:8px 0 10px}
.section-head p{color:var(--muted);margin:0}
.filter-bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;padding:18px;background:var(--paper);border:1px solid var(--line);border-radius:18px}
.filter-bar span{font-size:.88rem;font-weight:800;color:var(--muted);margin-right:4px}.tag{border:1px solid #ded6c8;background:#fffaf0;border-radius:999px;padding:8px 15px;color:#5f675f;font-weight:700;font-size:.88rem}
.tag.active{background:var(--green);color:#fff;border-color:var(--green)}
.video-grid{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:20px;align-items:start}
.video-card{background:var(--paper);border-radius:var(--radius);overflow:hidden;border:1px solid var(--line);transition:.3s}
.video-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.video-card.large{grid-row:span 2}
.cover{height:218px;overflow:hidden;position:relative}.video-card.large .cover{height:455px}
.cover img{width:100%;height:100%;object-fit:cover;transition:.5s}.video-card:hover img{transform:scale(1.04)}
.play-badge{position:absolute;left:17px;bottom:16px;background:var(--orange);color:var(--green);border-radius:999px;padding:7px 12px;font-size:.78rem;font-weight:900}
.card-body{padding:18px 20px}.card-body h3{font-size:1.08rem;line-height:1.45;margin:0 0 7px;font-weight:900;color:var(--green)}
.card-body p{font-size:.88rem;color:var(--muted);margin:0}.meta{display:flex;gap:12px;color:#8a918a;font-size:.78rem;margin-top:12px}
.feature-layout{display:grid;grid-template-columns:1.35fr .65fr;gap:22px}.feature-card{border-radius:var(--radius);overflow:hidden;position:relative;background:var(--green);min-height:380px}
.feature-card img{width:100%;height:100%;object-fit:cover;opacity:.66}.feature-overlay{position:absolute;inset:auto 0 0;padding:30px;background:linear-gradient(transparent,rgba(16,43,37,.98));color:#fff}
.feature-overlay h3{font-size:1.8rem;line-height:1.3;margin:0 0 8px}.feature-overlay p{color:#d9e3da;margin:0}
.mini-stack{display:flex;flex-direction:column;gap:15px}.mini-feature{display:flex;gap:14px;background:var(--paper);padding:14px;border:1px solid var(--line);border-radius:18px}
.mini-feature img{width:112px;height:103px;object-fit:cover;border-radius:13px}.mini-feature h3{font-size:1rem;line-height:1.4;margin:4px 0;color:var(--green)}.mini-feature p{font-size:.8rem;color:var(--muted);margin:0}
.solution{display:grid;grid-template-columns:.9fr 1.1fr;gap:45px;align-items:center}.solution img{width:100%;height:360px;object-fit:cover;border-radius:26px;box-shadow:var(--shadow)}
.check-list{list-style:none;padding:0;margin:20px 0 0}.check-list li{padding:13px 0;border-bottom:1px solid var(--line);font-weight:700}.check-list li:before{content:"✓";color:var(--orange-deep);font-weight:900;margin-right:12px}
.path{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.path-item{padding:23px;background:var(--paper);border-radius:20px;border:1px solid var(--line);position:relative}.path-item b{font-size:2.2rem;color:var(--orange);line-height:1}.path-item h3{font-size:1.1rem;color:var(--green);margin:14px 0 5px}.path-item p{font-size:.88rem;color:var(--muted);margin:0}
.metric-band{background:var(--green);color:#fff}.metric-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}.metric{border-top:1px solid rgba(255,255,255,.25);padding-top:20px}.metric strong{display:block;color:var(--orange);font-size:1.55rem}.metric span{color:#d3dfd5}
.editorial-list{display:grid;grid-template-columns:1fr 1fr;gap:0 36px}.editor-row{display:flex;gap:16px;align-items:center;padding:18px 0;border-bottom:1px solid var(--line)}.editor-row img{width:118px;height:88px;object-fit:cover;border-radius:14px}.editor-row h3{font-size:1rem;line-height:1.45;color:var(--green);margin:0 0 5px}.editor-row p{font-size:.82rem;color:var(--muted);margin:0}
.faq-list{max-width:850px}.accordion-item{background:var(--paper);border:1px solid var(--line)!important;margin-bottom:10px;border-radius:15px!important;overflow:hidden}.accordion-button{background:var(--paper);color:var(--green);font-weight:800;box-shadow:none!important}.accordion-button:not(.collapsed){background:#fff4dc;color:var(--green)}.accordion-body{color:var(--muted);font-size:.92rem}
.cta-band{padding:62px 0;background:var(--orange)}.cta-band h2{font-size:2.25rem;line-height:1.25;color:var(--green);font-weight:900;margin:0 0 8px}.cta-band p{color:#5d4b2d;margin:0}
.site-footer{background:var(--green);color:#dce6dd;padding:64px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr .7fr .7fr;gap:45px}.site-footer .brand{color:#fff}.footer-intro{color:#b9c8bb;max-width:420px}.footer-title{color:var(--orange);font-weight:900;margin-bottom:14px}.footer-links{display:flex;flex-direction:column;gap:9px}.footer-links a{color:#c8d4ca;transition:.2s}.footer-links a:hover{color:var(--orange);padding-left:4px}.copyright{border-top:1px solid rgba(255,255,255,.15);margin-top:45px;padding-top:18px;display:flex;justify-content:space-between;color:#9eafa1;font-size:.82rem}
.toast-note{position:fixed;right:22px;bottom:22px;background:var(--green);color:#fff;padding:13px 18px;border-radius:12px;box-shadow:var(--shadow);display:none;z-index:1100}
@media(max-width:992px){.nav-search{margin:12px 0}.video-grid{grid-template-columns:1fr 1fr}.video-card.large{grid-row:auto}.video-card.large .cover{height:300px}.feature-layout,.solution{grid-template-columns:1fr}.path{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){section{padding:62px 0}.page-hero{padding:56px 0}.coupon-wrap{flex-direction:column}.coupon-card:after{display:none}.video-grid,.editorial-list{grid-template-columns:1fr}.metric-grid{grid-template-columns:1fr;gap:20px}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}}
@media(max-width:520px){.page-hero h1{font-size:2.55rem}.path{grid-template-columns:1fr}.footer-grid{grid-template-columns:1fr}.copyright{flex-direction:column;gap:5px}.nav-search input{width:100%}.cover,.video-card.large .cover{height:235px}}

/* roulang page: category3 */
:root{--orange:#f5a623;--orange-deep:#dc7816;--green:#102b25;--green-2:#173d32;--ink:#18221e;--muted:#6f7972;--cream:#fbf7ef;--paper:#fffdf8;--line:#e9e3d8;--soft:#f4eee3;--shadow:0 18px 45px rgba(24,44,34,.1);--shadow-sm:0 8px 24px rgba(24,44,34,.08);--radius:22px}
*{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;line-height:1.75}a{color:inherit;text-decoration:none}img{max-width:100%;display:block}button,input{font:inherit}.container{max-width:1180px}.site-header{position:sticky;top:0;z-index:1000;background:rgba(251,247,239,.95);backdrop-filter:blur(14px);border-bottom:1px solid rgba(233,227,216,.9)}.navbar{min-height:76px}.brand{display:flex;align-items:center;gap:10px;font-weight:900;font-size:1.25rem;letter-spacing:.02em;color:var(--green)}.brand-mark{width:34px;height:34px;border-radius:12px 12px 12px 5px;background:var(--orange);display:grid;place-items:center;color:var(--green);font-size:15px;box-shadow:inset -4px -4px 0 rgba(220,120,22,.22)}.nav-link{font-weight:700;color:#536058!important;padding:.65rem .9rem!important;border-radius:10px;transition:.25s}.nav-link:hover,.nav-link.active{color:var(--green)!important;background:#f2e8d5}.nav-search{border:1px solid var(--line);border-radius:999px;padding:9px 14px 9px 17px;background:#fffdf8;display:flex;gap:8px}.nav-search input{border:0;outline:0;background:transparent;width:120px;font-size:.88rem}.nav-search button{border:0;background:var(--green);color:white;border-radius:50%;width:30px;height:30px}.btn-brand,.btn-darkgreen{display:inline-block;border-radius:999px;padding:12px 22px;font-weight:800;transition:.25s}.btn-brand{background:var(--orange);color:var(--green);box-shadow:0 8px 18px rgba(245,166,35,.22)}.btn-brand:hover{background:#ffb837;color:var(--green);transform:translateY(-2px)}.btn-darkgreen{background:var(--green);color:#fff}.btn-darkgreen:hover{background:var(--green-2);color:#fff;transform:translateY(-2px)}a:focus-visible,button:focus-visible,input:focus-visible{outline:3px solid var(--orange);outline-offset:3px}
.page-banner{position:relative;min-height:360px;padding:86px 0;display:flex;align-items:center;overflow:hidden;background:var(--green)}.page-banner:before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(16,43,37,.96),rgba(16,43,37,.65),rgba(16,43,37,.18)),url('/assets/images/c6d3bddd7958011f.jpg') center/cover}.page-banner .container{position:relative;z-index:1}.eyebrow,.section-kicker{color:var(--orange-deep);font-weight:900;font-size:.78rem;letter-spacing:.12em}.page-banner .eyebrow{color:var(--orange)}.page-banner h1{color:#fffdf8;font-size:clamp(2.5rem,5vw,4.8rem);line-height:1.1;letter-spacing:-.05em;font-weight:900;margin:16px 0}.page-banner p{color:#e5eee7;max-width:650px;font-size:1.08rem}.crumb{color:#cdd9d0;font-size:.9rem;margin-bottom:12px}.crumb a{color:var(--orange)}
section{padding:82px 0}.soft-section{background:var(--soft)}.section-head{margin-bottom:34px;max-width:720px}.section-head h2{font-size:2rem;line-height:1.3;color:var(--green);font-weight:900;margin:10px 0}.section-head p{color:var(--muted);margin:0}.filter-bar{display:flex;gap:10px;flex-wrap:wrap;align-items:center;margin-bottom:30px}.tag{border:1px solid #ded6c8;background:#fffaf0;border-radius:999px;padding:9px 16px;color:#5f675f;font-weight:700;font-size:.9rem}.tag.active{background:var(--green);color:#fff;border-color:var(--green)}.filter-note{margin-left:auto;color:var(--muted);font-size:.9rem}
.content-grid{display:grid;grid-template-columns:1.2fr .8fr;gap:22px}.feature-card{position:relative;overflow:hidden;border-radius:var(--radius);min-height:390px;background:var(--green);box-shadow:var(--shadow)}.feature-card img{width:100%;height:100%;object-fit:cover;opacity:.74;transition:.5s}.feature-card:hover img{transform:scale(1.04)}.feature-overlay{position:absolute;inset:auto 0 0;padding:30px;background:linear-gradient(transparent,rgba(16,43,37,.98));color:#fff}.feature-overlay h3{font-size:1.8rem;line-height:1.3;margin:10px 0}.feature-overlay p{color:#dce7de;margin:0}.side-list{display:grid;gap:14px}.topic-card{background:var(--paper);border:1px solid var(--line);border-radius:18px;padding:15px;display:flex;gap:15px;transition:.25s}.topic-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-sm)}.topic-card img{width:125px;height:105px;object-fit:cover;border-radius:13px}.topic-card h3{font-size:1.05rem;line-height:1.4;color:var(--green);font-weight:900;margin:4px 0}.topic-card p{font-size:.84rem;color:var(--muted);margin:0}.meta{font-size:.78rem;color:#8a918a;margin-top:8px}
.magazine-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.mag-card{background:var(--paper);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;transition:.3s}.mag-card:hover{transform:translateY(-5px);box-shadow:var(--shadow)}.mag-card img{height:210px;width:100%;object-fit:cover}.mag-body{padding:20px}.mag-body h3{color:var(--green);font-size:1.2rem;line-height:1.4;font-weight:900;margin:0 0 8px}.mag-body p{color:var(--muted);font-size:.9rem;margin:0 0 12px}.read-link{color:var(--orange-deep);font-weight:800;font-size:.9rem}.path-section{background:var(--green);color:white}.path-section h2{color:#fffdf8}.path-section p{color:#d4e0d7}.path-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}.path-item{border-top:2px solid var(--orange);padding-top:17px}.path-item b{font-size:2rem;color:var(--orange);display:block;line-height:1.2}.path-item h3{font-size:1.05rem;margin:10px 0 5px}.path-item p{font-size:.88rem;margin:0}.extend{display:grid;grid-template-columns:1fr 1fr;gap:20px}.extend-box{background:var(--paper);padding:25px;border-radius:var(--radius);border:1px solid var(--line)}.extend-box h3{color:var(--green);font-weight:900;margin-top:0}.extend-box p{color:var(--muted)}.faq-list{max-width:850px}.accordion-item{background:var(--paper);border:1px solid var(--line)!important;margin-bottom:12px;border-radius:15px!important;overflow:hidden}.accordion-button{background:var(--paper);color:var(--green);font-weight:800;box-shadow:none!important}.accordion-button:not(.collapsed){background:#f5ead7;color:var(--green)}.cta-band{background:var(--orange);padding:55px 0}.cta-band h2{color:var(--green);font-size:2.1rem;font-weight:900;margin:0 0 8px}.cta-band p{color:#5d491e;margin:0}.site-footer{background:var(--green);color:#dbe6dc;padding:62px 0 22px}.footer-grid{display:grid;grid-template-columns:1.6fr .8fr .8fr;gap:35px}.site-footer .brand{color:#fffdf8}.footer-intro{color:#b9cabe;max-width:390px}.footer-title{font-weight:900;color:var(--orange);margin-bottom:14px}.footer-links{display:grid;gap:9px}.footer-links a{color:#dbe6dc;transition:.2s}.footer-links a:hover{color:var(--orange)}.copyright{border-top:1px solid rgba(255,255,255,.16);margin-top:42px;padding-top:18px;display:flex;justify-content:space-between;color:#9fb1a4;font-size:.82rem}
@media(max-width:992px){.nav-search{margin:12px 0}.content-grid{grid-template-columns:1fr}.path-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:768px){section{padding:62px 0}.page-banner{min-height:330px;padding:65px 0}.magazine-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}.footer-grid>div:first-child{grid-column:1/-1}.filter-note{width:100%;margin-left:0}}
@media(max-width:520px){.page-banner h1{font-size:2.55rem}.magazine-grid,.path-grid,.extend{grid-template-columns:1fr}.topic-card img{width:105px;height:95px}.footer-grid{grid-template-columns:1fr}.copyright{display:block}.copyright span{display:block;margin-top:5px}.nav-search input{width:100px}}

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