/* roulang page: index */
:root{
      --green:#16a34a;
      --green-2:#13a36f;
      --teal:#0ea5a8;
      --orange:#f59e0b;
      --ink:#17231f;
      --deep:#0e2f24;
      --deep-2:#12372a;
      --muted:#5f6f68;
      --soft:#87938d;
      --bg:#f7faf6;
      --bg-2:#eef7f1;
      --white:#ffffff;
      --line:rgba(18,55,42,.12);
      --line-strong:rgba(22,163,74,.28);
      --shadow:0 18px 45px rgba(18,55,42,.10);
      --shadow-hover:0 24px 60px rgba(18,55,42,.14);
      --radius-xl:24px;
      --radius-lg:18px;
      --radius-md:14px;
      --container:1240px;
      --gradient:linear-gradient(135deg,#16a34a 0%,#13a36f 50%,#0ea5a8 100%);
      --gradient-warm:linear-gradient(135deg,#16a34a 0%,#0ea5a8 55%,#f59e0b 100%);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--ink);
      background:
        radial-gradient(circle at 10% 0%,rgba(22,163,74,.08),transparent 34%),
        linear-gradient(180deg,#fbfdf9 0%,var(--bg) 46%,#ffffff 100%);
      line-height:1.75;
      letter-spacing:0;
      padding-bottom:86px;
    }
    a{color:inherit;text-decoration:none;transition:.2s ease}
    a:hover{color:var(--green)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    .site-container{max-width:var(--container);margin:0 auto;padding:0 24px}
    .section{padding:64px 0}
    .section-tight{padding:42px 0}
    .section-title{font-size:36px;line-height:1.25;margin:0;color:var(--ink);font-weight:800;letter-spacing:0}
    .section-lead{font-size:17px;color:var(--muted);margin:14px 0 0;max-width:780px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid var(--line-strong);border-radius:999px;background:rgba(255,255,255,.78);color:var(--deep-2);font-size:14px;font-weight:700}
    .eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gradient)}
    .btn-brand,.btn-soft,.btn-outline-brand{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 20px;font-weight:800;border:1px solid transparent;transition:.22s ease;white-space:normal;line-height:1.25;
    }
    .btn-brand{background:var(--gradient);color:#fff;box-shadow:0 12px 24px rgba(22,163,74,.22)}
    .btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px rgba(22,163,74,.28);filter:saturate(1.05)}
    .btn-soft{background:rgba(22,163,74,.10);color:var(--deep-2);border-color:rgba(22,163,74,.18)}
    .btn-soft:hover{background:rgba(22,163,74,.16);color:var(--deep-2);transform:translateY(-2px)}
    .btn-outline-brand{background:rgba(255,255,255,.72);border-color:rgba(18,55,42,.18);color:var(--deep-2)}
    .btn-outline-brand:hover{background:#fff;border-color:rgba(22,163,74,.36);color:var(--green);transform:translateY(-2px)}
    .btn-brand:focus-visible,.btn-soft:focus-visible,.btn-outline-brand:focus-visible,.nav-link-chip:focus-visible,.footer a:focus-visible,.accordion-button:focus-visible,.form-control:focus-visible,.form-select:focus-visible{
      outline:3px solid rgba(245,158,11,.42);outline-offset:3px;box-shadow:none;
    }
    .badge-metric{
      display:inline-flex;align-items:center;gap:8px;padding:9px 12px;border-radius:999px;background:linear-gradient(#fff,#fff) padding-box,var(--gradient) border-box;border:1px solid transparent;color:var(--deep-2);font-size:14px;font-weight:700;
    }
    .badge-metric strong{font-size:18px;color:var(--green);line-height:1}
    .site-header{position:sticky;top:0;z-index:1000;background:rgba(247,250,246,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(18,55,42,.10);transition:.2s ease}
    .topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0 12px}
    .brand-logo{display:flex;align-items:center;gap:12px;font-weight:900;color:var(--deep)}
    .brand-mark{width:42px;height:42px;border-radius:15px;background:var(--gradient-warm);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 12px 26px rgba(22,163,74,.22)}
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-text span:first-child{font-size:20px}
    .brand-text span:last-child{font-size:12px;color:var(--muted);font-weight:700;margin-top:4px}
    .navbar-toggler{border:1px solid var(--line);border-radius:14px;padding:8px 10px;background:#fff}
    .navbar-toggler:focus{box-shadow:0 0 0 3px rgba(22,163,74,.16)}
    .segmented-wrap{padding:0 0 14px}
    .segmented-nav{display:flex;gap:8px;align-items:center;overflow-x:auto;padding:8px;background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:999px;box-shadow:0 10px 24px rgba(18,55,42,.06);scrollbar-width:none}
    .segmented-nav::-webkit-scrollbar{display:none}
    .nav-link-chip{flex:0 0 auto;padding:9px 15px;border-radius:999px;color:var(--muted);font-weight:800;font-size:14px;border:1px solid transparent}
    .nav-link-chip:hover{background:rgba(22,163,74,.10);color:var(--deep-2)}
    .nav-link-chip.active{background:var(--gradient);color:#fff;box-shadow:0 8px 18px rgba(22,163,74,.20)}
    .hero{position:relative;min-height:calc(100vh - 118px);display:flex;align-items:end;padding:72px 0 42px;color:#fff;overflow:hidden;background-image:linear-gradient(90deg,rgba(14,47,36,.92) 0%,rgba(14,47,36,.72) 42%,rgba(14,47,36,.18) 100%),url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center}
    .hero::after{content:"";position:absolute;inset:auto 0 0;height:190px;background:linear-gradient(180deg,transparent,rgba(247,250,246,.98));pointer-events:none}
    .hero-content{position:relative;z-index:2;max-width:980px;padding-bottom:18px}
    .hero h1{font-size:54px;line-height:1.15;margin:18px 0 18px;font-weight:900;letter-spacing:0;max-width:880px}
    .hero p{font-size:18px;max-width:780px;color:rgba(255,255,255,.88);margin:0 0 24px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;margin-bottom:24px}
    .hero .btn-outline-brand{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.34);color:#fff}
    .hero .btn-outline-brand:hover{background:#fff;color:var(--deep)}
    .hero-metrics{display:flex;flex-wrap:wrap;gap:10px}
    .hero .badge-metric{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.24);color:#fff;backdrop-filter:blur(10px)}
    .hero .badge-metric strong{color:#a7f3d0}
    .peek-panel{position:relative;z-index:3;margin-top:-28px}
    .peek-inner{background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);box-shadow:var(--shadow);padding:18px;display:grid;grid-template-columns:1.2fr .8fr;gap:18px;align-items:center}
    .peek-inner p{margin:0;color:var(--muted)}
    .mini-tags{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}
    .mini-tag{padding:7px 11px;border-radius:999px;background:var(--bg-2);color:var(--deep-2);font-size:13px;font-weight:800}
    .intro-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:stretch}
    .story-card,.image-card,.feature-card,.topic-card,.news-card,.timeline-card,.progress-card,.scenario-card,.proof-card,.form-card,.faq-shell,.cta-panel{
      border:1px solid var(--line);background:rgba(255,255,255,.86);border-radius:var(--radius-xl);box-shadow:var(--shadow);overflow:hidden;transition:.22s ease;
    }
    .story-card:hover,.feature-card:hover,.topic-card:hover,.news-card:hover,.timeline-card:hover,.progress-card:hover,.scenario-card:hover,.proof-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(22,163,74,.26)}
    .story-card{padding:30px}
    .story-card h2{font-size:34px;line-height:1.25;margin:14px 0 12px;font-weight:900}
    .story-card p{color:var(--muted);margin:0 0 14px}
    .image-card{position:relative;min-height:420px;background:#dfeee4}
    .image-card img{width:100%;height:100%;object-fit:cover;aspect-ratio:4/3}
    .image-caption{position:absolute;left:18px;right:18px;bottom:18px;padding:16px;border-radius:18px;background:rgba(14,47,36,.82);color:#fff;backdrop-filter:blur(12px)}
    .image-caption b{display:block;font-size:18px;margin-bottom:4px}
    .image-caption span{font-size:14px;color:rgba(255,255,255,.78)}
    .feature-mosaic{display:grid;grid-template-columns:1.25fr .75fr;gap:18px}
    .feature-card{padding:24px;position:relative}
    .feature-card.large{min-height:410px;background:linear-gradient(135deg,rgba(22,163,74,.12),rgba(14,165,168,.10)),#fff}
    .feature-card h3{font-size:23px;font-weight:900;margin:14px 0 10px}
    .feature-card p{color:var(--muted);margin:0 0 18px}
    .feature-side{display:grid;gap:18px}
    .icon-pill{width:46px;height:46px;border-radius:16px;background:var(--gradient);display:grid;place-items:center;color:#fff;font-weight:900}
    .channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .channel-card{padding:22px;border-radius:22px;border:1px solid var(--line);background:linear-gradient(180deg,#fff,rgba(238,247,241,.72));transition:.22s ease}
    .channel-card:hover{border-color:rgba(22,163,74,.28);transform:translateY(-2px)}
    .channel-card h3{font-size:21px;font-weight:900;margin:12px 0 8px}
    .channel-card p{color:var(--muted);margin:0}
    .group-panel{background:var(--deep);color:#fff;border-radius:30px;padding:34px;overflow:hidden;position:relative}
    .group-panel::before{content:"";position:absolute;right:-80px;top:-90px;width:250px;height:250px;background:radial-gradient(circle,rgba(245,158,11,.28),transparent 70%)}
    .group-grid{position:relative;display:grid;grid-template-columns:.85fr 1.15fr;gap:24px;align-items:start}
    .group-panel h2{font-size:34px;font-weight:900;margin:12px 0}
    .group-panel p{color:rgba(255,255,255,.78);margin:0 0 16px}
    .step-list{display:grid;gap:12px}
    .step-item{display:grid;grid-template-columns:44px 1fr;gap:12px;padding:15px;border-radius:18px;background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.14)}
    .step-num{width:44px;height:44px;border-radius:15px;background:rgba(255,255,255,.16);display:grid;place-items:center;font-weight:900;color:#a7f3d0}
    .step-item b{display:block;margin-bottom:3px}
    .step-item span{font-size:14px;color:rgba(255,255,255,.76)}
    .progress-layout{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .progress-card{padding:24px}
    .progress-card h3{font-weight:900;margin:0 0 8px}
    .progress-card p{color:var(--muted);margin:0 0 16px}
    .bar{height:12px;border-radius:999px;background:rgba(18,55,42,.08);overflow:hidden}
    .bar span{display:block;height:100%;border-radius:999px;background:var(--gradient)}
    .check-list{list-style:none;margin:16px 0 0;padding:0;display:grid;gap:10px}
    .check-list li{position:relative;padding-left:28px;color:var(--muted)}
    .check-list li::before{content:"✓";position:absolute;left:0;top:0;width:20px;height:20px;border-radius:50%;background:rgba(22,163,74,.13);color:var(--green);display:grid;place-items:center;font-size:12px;font-weight:900}
    .scenario-wrap{display:grid;grid-template-columns:.95fr 1.05fr;gap:24px;align-items:center}
    .scenario-image{border-radius:30px;overflow:hidden;box-shadow:var(--shadow);border:1px solid var(--line)}
    .scenario-image img{width:100%;height:100%;object-fit:cover;aspect-ratio:5/4}
    .scenario-tabs .nav-pills{gap:8px;margin:18px 0}
    .scenario-tabs .nav-link{border-radius:999px;color:var(--muted);font-weight:800;border:1px solid var(--line);background:#fff}
    .scenario-tabs .nav-link.active{background:var(--gradient);color:#fff;border-color:transparent}
    .tab-pane-box{padding:22px;border-radius:22px;background:#fff;border:1px solid var(--line);box-shadow:0 10px 24px rgba(18,55,42,.06)}
    .tab-pane-box h3{font-weight:900;margin:0 0 10px}
    .tab-pane-box p{color:var(--muted);margin:0 0 14px}
    .topic-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .topic-card{padding:20px;min-height:210px}
    .topic-card h3{font-size:20px;font-weight:900;margin:12px 0 8px}
    .topic-card p{color:var(--muted);font-size:15px;margin:0 0 12px}
    .topic-card a{font-weight:900;color:var(--green)}
    .hot-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px}
    .hot-card{border-radius:24px;overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);transition:.22s ease}
    .hot-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(22,163,74,.25)}
    .hot-card img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:.28s ease}
    .hot-card:hover img{transform:scale(1.03)}
    .hot-body{padding:20px}
    .hot-body h3{font-size:21px;font-weight:900;margin:10px 0 8px}
    .hot-body p{color:var(--muted);margin:0 0 14px}
    .metric-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .metric-box{padding:20px;border-radius:22px;background:linear-gradient(180deg,#fff,rgba(238,247,241,.72));border:1px solid var(--line)}
    .metric-box strong{display:block;font-size:30px;line-height:1.1;color:var(--green);font-weight:900}
    .metric-box span{display:block;margin-top:8px;color:var(--muted);font-size:14px}
    .news-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:22px}
    .news-feature{overflow:hidden}
    .news-feature img{width:100%;aspect-ratio:16/9;object-fit:cover}
    .news-body{padding:24px}
    .date{font-size:13px;color:var(--soft);font-weight:800}
    .news-body h3{font-size:25px;font-weight:900;margin:8px 0 10px}
    .news-body p{color:var(--muted);margin:0 0 16px}
    .news-list{display:grid;gap:12px}
    .news-item{display:grid;grid-template-columns:92px 1fr auto;gap:14px;align-items:center;padding:15px;border-radius:18px;background:#fff;border:1px solid var(--line);transition:.2s ease}
    .news-item:hover{border-color:rgba(22,163,74,.26);transform:translateX(2px)}
    .news-item h3{font-size:17px;font-weight:900;margin:0 0 4px}
    .news-item p{font-size:14px;color:var(--muted);margin:0}
    .link-more{display:inline-flex;align-items:center;gap:6px;padding:8px 12px;border-radius:999px;background:rgba(22,163,74,.10);color:var(--deep-2);font-size:13px;font-weight:900}
    .link-more:hover{background:rgba(22,163,74,.16);color:var(--green)}
    .proof-band{background:linear-gradient(135deg,rgba(22,163,74,.10),rgba(14,165,168,.08));border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
    .proof-grid{display:grid;grid-template-columns:1fr 1fr;gap:22px}
    .proof-card{padding:26px}
    .proof-card h3{font-size:24px;font-weight:900;margin:10px 0}
    .proof-card p{color:var(--muted);margin:0 0 12px}
    .brand-story{background:#fff;border:1px solid var(--line);border-radius:30px;padding:34px;box-shadow:var(--shadow);display:grid;grid-template-columns:.8fr 1.2fr;gap:26px;align-items:center}
    .brand-story img{border-radius:24px;width:100%;aspect-ratio:4/3;object-fit:cover}
    .brand-story h2{font-size:32px;font-weight:900;margin:12px 0}
    .brand-story p{color:var(--muted);margin:0 0 14px}
    .filter-row{display:flex;gap:10px;flex-wrap:wrap}
    .filter-chip{padding:9px 13px;border-radius:999px;background:#fff;border:1px solid var(--line);color:var(--muted);font-weight:800}
    .filter-chip.active{background:var(--deep);color:#fff;border-color:var(--deep)}
    .form-zone{display:grid;grid-template-columns:.9fr 1.1fr;gap:22px;align-items:stretch}
    .form-card{padding:26px}
    .form-card h2{font-size:32px;font-weight:900;margin:12px 0}
    .form-card p{color:var(--muted)}
    .form-control,.form-select{border-radius:16px;border:1px solid rgba(18,55,42,.16);padding:12px 14px;background:#fbfdf9}
    .form-control:focus,.form-select:focus{border-color:rgba(22,163,74,.48);box-shadow:0 0 0 4px rgba(22,163,74,.12)}
    .notice-box{padding:16px;border-radius:18px;background:rgba(245,158,11,.10);border:1px solid rgba(245,158,11,.22);color:#7a5205;font-size:14px}
    .accordion{display:grid;gap:12px}
    .accordion-item{border:1px solid var(--line);border-radius:20px!important;overflow:hidden;background:#fff;box-shadow:0 10px 24px rgba(18,55,42,.05)}
    .accordion-button{font-weight:900;color:var(--ink);background:#fff;padding:18px 20px;box-shadow:none}
    .accordion-button:not(.collapsed){background:linear-gradient(90deg,rgba(22,163,74,.12),rgba(14,165,168,.08));color:var(--deep);box-shadow:inset 5px 0 0 var(--green)}
    .accordion-button::after{filter:hue-rotate(85deg) saturate(1.5)}
    .accordion-body{color:var(--muted);padding:0 20px 20px}
    .cta-panel{background:var(--deep);color:#fff;padding:34px;display:grid;grid-template-columns:1fr auto;gap:20px;align-items:center}
    .cta-panel h2{font-size:32px;font-weight:900;margin:0 0 8px}
    .cta-panel p{color:rgba(255,255,255,.76);margin:0}
    .footer{background:var(--deep);color:rgba(255,255,255,.78);padding:56px 0 30px;margin-top:32px}
    .footer-grid{display:grid;grid-template-columns:1.4fr repeat(2,1fr);gap:26px}
    .footer h2,.footer h3{color:#fff;font-weight:900;margin:0 0 12px}
    .footer p{margin:0;color:rgba(255,255,255,.70)}
    .footer-links{display:grid;gap:8px}
    .footer a{color:rgba(255,255,255,.78)}
    .footer a:hover{color:#fbbf24;text-decoration:underline}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:30px;padding-top:20px;display:flex;flex-wrap:wrap;gap:12px 18px;align-items:center;justify-content:space-between;font-size:14px}
    .fixed-cta{position:fixed;left:0;right:0;bottom:0;z-index:1001;background:rgba(14,47,36,.94);backdrop-filter:blur(16px);border-top:1px solid rgba(255,255,255,.15);box-shadow:0 -18px 40px rgba(18,55,42,.18);color:#fff}
    .fixed-inner{max-width:var(--container);margin:0 auto;padding:12px 24px;display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:72px}
    .fixed-title{font-weight:900}
    .fixed-note{font-size:14px;color:rgba(255,255,255,.70)}
    .fixed-actions{display:flex;gap:10px;flex-wrap:wrap}
    @media (max-width: 991px){
      body{padding-bottom:82px}
      .hero{min-height:720px;padding-top:56px}
      .hero h1{font-size:40px}
      .peek-inner,.intro-grid,.feature-mosaic,.group-grid,.progress-layout,.scenario-wrap,.news-layout,.proof-grid,.brand-story,.form-zone,.cta-panel{grid-template-columns:1fr}
      .channel-grid,.hot-grid{grid-template-columns:1fr 1fr}
      .topic-grid,.metric-strip{grid-template-columns:1fr 1fr}
      .segmented-nav{border-radius:22px}
      .topbar{align-items:flex-start}
      .news-item{grid-template-columns:82px 1fr}
      .news-item .link-more{grid-column:2}
    }
    @media (max-width: 767px){
      .site-container{padding:0 16px}
      .section{padding:46px 0}
      .section-title{font-size:28px}
      .hero{min-height:650px;padding:42px 0 34px;background-image:linear-gradient(180deg,rgba(14,47,36,.90),rgba(14,47,36,.60)),url('/assets/images/backpic/back-1.webp')}
      .hero h1{font-size:35px}
      .hero p{font-size:16px}
      .hero-actions .btn-brand,.hero-actions .btn-outline-brand{width:100%}
      .peek-inner{padding:16px}
      .mini-tags{justify-content:flex-start}
      .story-card,.group-panel,.brand-story,.cta-panel{padding:24px}
      .story-card h2,.group-panel h2,.form-card h2,.cta-panel h2{font-size:27px}
      .channel-grid,.hot-grid,.topic-grid,.metric-strip{grid-template-columns:1fr}
      .fixed-inner{min-height:70px;padding:10px 14px}
      .fixed-copy{display:none}
      .fixed-actions{width:100%;display:grid;grid-template-columns:1fr 1fr}
      .fixed-actions a{padding:11px 10px;font-size:14px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:block}
      .footer-bottom span{display:block;margin:6px 0}
    }
    @media (max-width: 375px){
      .brand-text span:first-child{font-size:17px}
      .hero h1{font-size:32px}
      .btn-brand,.btn-soft,.btn-outline-brand{padding:11px 14px}
      .nav-link-chip{padding:8px 12px}
    }

/* roulang page: category1 */
:root{
      --green:#16a34a;--green-2:#13a36f;--teal:#0ea5a8;--orange:#f59e0b;
      --ink:#17231f;--deep:#0e2f24;--deep-2:#12372a;--muted:#5f6f68;--soft:#87938d;
      --bg:#f7faf6;--bg-2:#eef7f1;--white:#fff;--line:rgba(18,55,42,.12);
      --line-strong:rgba(22,163,74,.28);--shadow:0 18px 45px rgba(18,55,42,.10);
      --shadow-hover:0 24px 60px rgba(18,55,42,.14);--radius-xl:24px;--radius-lg:18px;
      --radius-md:14px;--container:1240px;
      --gradient:linear-gradient(135deg,#16a34a 0%,#13a36f 50%,#0ea5a8 100%);
      --gradient-warm:linear-gradient(135deg,#16a34a 0%,#0ea5a8 55%,#f59e0b 100%);
    }
    *{box-sizing:border-box}html{scroll-behavior:smooth}
    body{margin:0;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;color:var(--ink);background:linear-gradient(180deg,#fbfdf9,var(--bg) 48%,#fff);line-height:1.75;padding-bottom:84px}
    a{color:inherit;text-decoration:none;transition:.2s ease}a:hover{color:var(--green)}
    img{max-width:100%;display:block}button,input{font:inherit}
    .site-container{max-width:var(--container);margin:auto;padding:0 24px}
    .site-header{position:sticky;top:0;z-index:1000;background:rgba(247,250,246,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
    .topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0 12px}
    .brand-logo{display:flex;align-items:center;gap:12px;font-weight:900;color:var(--deep)}
    .brand-mark{width:42px;height:42px;border-radius:15px;background:var(--gradient-warm);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 12px 26px rgba(22,163,74,.22)}
    .brand-text{display:flex;flex-direction:column;line-height:1.15}.brand-text span:first-child{font-size:20px}.brand-text span:last-child{font-size:12px;color:var(--muted);font-weight:700;margin-top:4px}
    .navbar-toggler{border:1px solid var(--line);border-radius:14px;padding:8px 10px;background:#fff}
    .segmented-nav{display:flex;gap:8px;align-items:center;overflow-x:auto;padding:8px;background:rgba(255,255,255,.8);border:1px solid var(--line);border-radius:999px;box-shadow:0 10px 24px rgba(18,55,42,.06);scrollbar-width:none}
    .segmented-nav::-webkit-scrollbar{display:none}.nav-link-chip{flex:0 0 auto;padding:9px 15px;border-radius:999px;color:var(--muted);font-weight:800;font-size:14px;border:1px solid transparent}
    .nav-link-chip:hover{background:rgba(22,163,74,.1);color:var(--deep-2)}.nav-link-chip.active{background:var(--gradient);color:#fff;box-shadow:0 8px 18px rgba(22,163,74,.2)}
    .btn-brand,.btn-soft,.btn-outline-brand{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:11px 19px;font-weight:800;border:1px solid transparent;transition:.22s ease;line-height:1.3}
    .btn-brand{background:var(--gradient);color:#fff;box-shadow:0 12px 24px rgba(22,163,74,.22)}.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover)}
    .btn-soft{background:rgba(22,163,74,.1);color:var(--deep-2);border-color:rgba(22,163,74,.18)}.btn-soft:hover{background:rgba(22,163,74,.17);transform:translateY(-2px)}
    .btn-outline-brand{background:#fff;border-color:var(--line-strong);color:var(--deep-2)}.btn-outline-brand:hover{color:var(--green);transform:translateY(-2px)}
    :focus-visible{outline:3px solid rgba(245,158,11,.5);outline-offset:3px}
    .eyebrow,.badge-metric,.tag{display:inline-flex;align-items:center;gap:7px;border-radius:999px;font-weight:800}
    .eyebrow{padding:7px 12px;border:1px solid var(--line-strong);background:#fff;color:var(--deep-2);font-size:14px}.eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gradient)}
    .badge-metric{padding:8px 12px;background:linear-gradient(#fff,#fff) padding-box,var(--gradient) border-box;border:1px solid transparent;color:var(--deep-2);font-size:14px}.badge-metric strong{font-size:17px;color:var(--green)}
    .hero-sub{padding:70px 0 54px;color:#fff;background-image:linear-gradient(90deg,rgba(14,47,36,.94),rgba(14,47,36,.65)),url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center}
    .hero-sub h1{font-size:50px;line-height:1.18;font-weight:900;margin:18px 0 15px}.hero-sub p{max-width:780px;color:rgba(255,255,255,.88);font-size:18px;margin-bottom:24px}
    .hero-sub .eyebrow{background:rgba(255,255,255,.13);color:#fff;border-color:rgba(255,255,255,.3)}.hero-sub .badge-metric{background:rgba(255,255,255,.13);color:#fff;border-color:rgba(255,255,255,.28)}.hero-sub .badge-metric strong{color:#a7f3d0}
    .crumb{font-size:14px;color:rgba(255,255,255,.72)}.crumb a{text-decoration:underline}
    .section{padding:62px 0}.section-tight{padding:40px 0}.section-title{font-size:34px;line-height:1.25;font-weight:900;margin:0}.section-lead{color:var(--muted);font-size:17px;max-width:780px;margin:12px 0 0}
    .intro-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:28px;align-items:stretch}.feature-card,.panel,.news-item,.info-band{background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:var(--radius-xl);box-shadow:var(--shadow)}
    .feature-card{overflow:hidden}.feature-card img{width:100%;height:300px;object-fit:cover}.feature-body{padding:27px}.feature-body h2{font-size:27px;font-weight:900;margin:10px 0}.feature-body p{color:var(--muted)}
    .tag{padding:5px 10px;background:var(--bg-2);color:var(--green);font-size:13px}.date{color:var(--soft);font-size:13px;font-weight:700}
    .news-list{display:grid;gap:12px}.news-item{padding:18px 20px;border-radius:var(--radius-lg);box-shadow:0 10px 26px rgba(18,55,42,.06)}.news-item:hover,.feature-card:hover,.panel:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}.news-item h3{font-size:19px;margin:7px 0 5px;font-weight:850}.news-item p{color:var(--muted);font-size:14px;margin:0 0 9px}.item-top{display:flex;justify-content:space-between;gap:10px}
    .split{display:grid;grid-template-columns:.8fr 1.2fr;gap:30px;align-items:center}.split img{height:360px;width:100%;object-fit:cover;border-radius:var(--radius-xl);box-shadow:var(--shadow)}.panel{padding:29px}.panel h2,.panel h3{font-weight:900}.panel p{color:var(--muted)}
    .timeline{border-left:2px solid rgba(22,163,74,.25);padding-left:24px;display:grid;gap:22px}.timeline article{position:relative}.timeline article:before{content:"";position:absolute;left:-33px;top:9px;width:14px;height:14px;border-radius:50%;background:var(--gradient);border:3px solid var(--bg)}
    .timeline h3{margin:4px 0;font-size:20px}.timeline p{margin:0;color:var(--muted)}
    .topic-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.topic{padding:22px;border-radius:var(--radius-lg);background:var(--bg-2);border:1px solid var(--line)}.topic:nth-child(2){background:#fff7e7}.topic:nth-child(3){background:#eaf8f8}.topic h3{font-size:19px;font-weight:900}.topic p{font-size:14px;color:var(--muted);margin:0}
    .reading{background:var(--deep);color:#fff;border-radius:var(--radius-xl);padding:38px}.reading p{color:rgba(255,255,255,.76)}.reading ul{padding-left:20px;color:rgba(255,255,255,.84)}.reading li{margin:8px 0}
    .stat-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}.stat{padding:20px;border-radius:18px;background:#fff;border:1px solid var(--line);text-align:center}.stat strong{display:block;font-size:30px;color:var(--green);line-height:1.2}.stat span{font-size:14px;color:var(--muted)}
    .accordion-item{border:1px solid var(--line)!important;border-radius:16px!important;overflow:hidden;margin-bottom:10px;background:#fff}.accordion-button{font-weight:800;color:var(--deep);background:#fff;padding:18px 20px}.accordion-button:not(.collapsed){color:var(--green);background:var(--bg-2);box-shadow:none}.accordion-button:after{background-size:14px}.accordion-body{color:var(--muted);padding:0 20px 20px}
    .cta{background:var(--gradient-warm);border-radius:var(--radius-xl);padding:34px;color:#fff;display:flex;justify-content:space-between;align-items:center;gap:20px}.cta h2{font-size:29px;font-weight:900;margin:0 0 8px}.cta p{margin:0;color:rgba(255,255,255,.88)}
    .footer{background:var(--deep);color:#fff;padding:52px 0 28px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:45px}.footer h2,.footer h3{font-weight:900}.footer p{color:rgba(255,255,255,.7);max-width:480px}.footer-links{display:grid;gap:8px;color:rgba(255,255,255,.72)}.footer-links a:hover,.footer a:hover{color:#a7f3d0}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:35px;padding-top:18px;display:flex;flex-wrap:wrap;gap:14px 26px;font-size:13px;color:rgba(255,255,255,.62)}
    .fixed-bar{position:fixed;z-index:999;bottom:0;left:0;right:0;background:rgba(14,47,36,.96);color:#fff;border-top:1px solid rgba(167,243,208,.2);box-shadow:0 -10px 30px rgba(18,55,42,.18);padding:12px 0}.fixed-inner{display:flex;align-items:center;justify-content:space-between;gap:18px}.fixed-inner small{color:rgba(255,255,255,.72)}
    @media(max-width:991px){.hero-sub h1{font-size:42px}.intro-grid,.split{grid-template-columns:1fr}.topic-grid{grid-template-columns:1fr 1fr}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:767px){body{padding-bottom:74px}.site-container{padding:0 17px}.topbar{padding:12px 0}.brand-text span:first-child{font-size:17px}.brand-text span:last-child{font-size:11px}.segmented-wrap{padding-bottom:10px}.segmented-nav{border-radius:18px}.hero-sub{padding:48px 0 40px}.hero-sub h1{font-size:35px}.hero-sub p{font-size:16px}.section{padding:43px 0}.section-title{font-size:28px}.feature-card img{height:220px}.split img{height:250px}.topic-grid,.stat-row{grid-template-columns:1fr 1fr}.cta{display:block;padding:26px}.cta .btn-brand{margin-top:18px}.footer-grid{grid-template-columns:1fr;gap:25px}.footer-bottom{display:grid;gap:8px}.fixed-inner small{display:none}.fixed-inner{justify-content:center}.fixed-bar .btn-brand,.fixed-bar .btn-soft{padding:9px 13px;font-size:13px}}
    @media(max-width:375px){.topic-grid,.stat-row{grid-template-columns:1fr}.brand-text span:last-child{display:none}}

/* roulang page: category3 */
:root{
      --green:#16a34a;--green-2:#13a36f;--teal:#0ea5a8;--orange:#f59e0b;
      --ink:#17231f;--deep:#0e2f24;--deep-2:#12372a;--muted:#5f6f68;--soft:#87938d;
      --bg:#f7faf6;--bg-2:#eef7f1;--white:#fff;--line:rgba(18,55,42,.12);
      --line-strong:rgba(22,163,74,.28);--shadow:0 18px 45px rgba(18,55,42,.10);
      --shadow-hover:0 24px 60px rgba(18,55,42,.14);--radius-xl:24px;--radius-lg:18px;
      --radius-md:14px;--container:1240px;
      --gradient:linear-gradient(135deg,#16a34a 0%,#13a36f 50%,#0ea5a8 100%);
      --gradient-warm:linear-gradient(135deg,#16a34a 0%,#0ea5a8 55%,#f59e0b 100%);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;padding-bottom:84px;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;color:var(--ink);background:radial-gradient(circle at 10% 0%,rgba(22,163,74,.08),transparent 34%),linear-gradient(180deg,#fbfdf9,var(--bg) 50%,#fff);line-height:1.75}
    a{color:inherit;text-decoration:none;transition:.22s ease}a:hover{color:var(--green)}
    img{display:block;max-width:100%}button,input,textarea,select{font:inherit}
    .site-container{max-width:var(--container);margin:auto;padding:0 24px}
    .site-header{position:sticky;top:0;z-index:1000;background:rgba(247,250,246,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
    .topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0 12px}
    .brand-logo{display:flex;align-items:center;gap:12px;font-weight:900;color:var(--deep)}
    .brand-mark{width:42px;height:42px;border-radius:15px;background:var(--gradient-warm);display:grid;place-items:center;color:#fff;box-shadow:0 12px 26px rgba(22,163,74,.22)}
    .brand-text{display:flex;flex-direction:column;line-height:1.15}.brand-text span:first-child{font-size:20px}.brand-text span:last-child{font-size:12px;color:var(--muted);font-weight:700;margin-top:4px}
    .navbar-toggler{border:1px solid var(--line);border-radius:14px;padding:8px 10px;background:#fff}
    .segmented-nav{display:flex;gap:8px;align-items:center;overflow-x:auto;padding:8px;background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:999px;box-shadow:0 10px 24px rgba(18,55,42,.06);scrollbar-width:none}.segmented-nav::-webkit-scrollbar{display:none}
    .nav-link-chip{flex:0 0 auto;padding:9px 15px;border-radius:999px;color:var(--muted);font-weight:800;font-size:14px;border:1px solid transparent}.nav-link-chip:hover{background:rgba(22,163,74,.1);color:var(--deep-2)}.nav-link-chip.active{background:var(--gradient);color:#fff;box-shadow:0 8px 18px rgba(22,163,74,.2)}
    .btn-brand,.btn-soft,.btn-outline-brand{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 20px;font-weight:800;border:1px solid transparent;transition:.22s ease;line-height:1.25}
    .btn-brand{background:var(--gradient);color:#fff;box-shadow:0 12px 24px rgba(22,163,74,.22)}.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px rgba(22,163,74,.28)}
    .btn-soft{background:rgba(22,163,74,.1);color:var(--deep-2);border-color:rgba(22,163,74,.18)}.btn-soft:hover{background:rgba(22,163,74,.16);color:var(--deep-2);transform:translateY(-2px)}
    .btn-outline-brand{background:rgba(255,255,255,.72);border-color:rgba(18,55,42,.18);color:var(--deep-2)}.btn-outline-brand:hover{background:#fff;border-color:rgba(22,163,74,.36);color:var(--green);transform:translateY(-2px)}
    .btn-brand:focus-visible,.btn-soft:focus-visible,.btn-outline-brand:focus-visible,.nav-link-chip:focus-visible,.footer a:focus-visible,.accordion-button:focus-visible{outline:3px solid rgba(245,158,11,.45);outline-offset:3px;box-shadow:none}
    .badge-metric{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:linear-gradient(#fff,#fff) padding-box,var(--gradient) border-box;border:1px solid transparent;color:var(--deep-2);font-size:14px;font-weight:700}.badge-metric strong{font-size:18px;color:var(--green);line-height:1}
    .section{padding:68px 0}.section-tight{padding:42px 0}.section-title{font-size:36px;line-height:1.25;margin:0;font-weight:900}.section-lead{font-size:17px;color:var(--muted);margin:14px 0 0;max-width:790px}.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid var(--line-strong);border-radius:999px;background:#fff;color:var(--deep-2);font-size:14px;font-weight:800}.eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gradient)}
    .inner-hero{padding:70px 0 60px;color:#fff;background-image:linear-gradient(90deg,rgba(14,47,36,.93),rgba(14,47,36,.63)),url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center}.inner-hero h1{font-size:50px;line-height:1.18;font-weight:900;margin:18px 0 14px}.inner-hero p{max-width:760px;color:rgba(255,255,255,.86);font-size:18px}.inner-hero .eyebrow{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.3)}
    .hero-metrics{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.inner-hero .badge-metric{background:rgba(255,255,255,.13);border-color:rgba(255,255,255,.3);color:#fff}.inner-hero .badge-metric strong{color:#a7f3d0}
    .crumb{font-size:14px;color:rgba(255,255,255,.72)}.crumb a:hover{color:#fff}
    .feature-panel,.content-card,.topic-card,.responsibility-card,.quote-panel{border:1px solid var(--line);border-radius:var(--radius-xl);background:rgba(255,255,255,.86);box-shadow:var(--shadow);overflow:hidden}
    .feature-panel:hover,.topic-card:hover,.responsibility-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover)}
    .feature-image{width:100%;height:310px;object-fit:cover}.feature-body{padding:28px}.feature-body h2{font-size:28px;font-weight:900;margin:10px 0}.feature-body p{color:var(--muted)}
    .label{display:inline-flex;padding:6px 10px;border-radius:999px;background:rgba(14,165,168,.1);color:#087477;font-size:13px;font-weight:800}
    .timeline{position:relative;padding-left:26px}.timeline:before{content:"";position:absolute;left:5px;top:10px;bottom:10px;width:2px;background:linear-gradient(var(--green),var(--teal),var(--orange))}
    .timeline-item{position:relative;padding:0 0 24px 20px}.timeline-item:before{content:"";position:absolute;left:-27px;top:8px;width:14px;height:14px;border:3px solid var(--bg);border-radius:50%;background:var(--green);box-shadow:0 0 0 1px var(--green)}
    .timeline-item time{font-size:13px;color:var(--green);font-weight:900}.timeline-item h3{font-size:19px;margin:5px 0 4px}.timeline-item p{color:var(--muted);font-size:15px;margin:0}
    .metrics-wall{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}.metric-box{padding:24px;border-radius:var(--radius-lg);background:var(--bg-2);border:1px solid var(--line)}.metric-box strong{display:block;font-size:32px;color:var(--green);line-height:1.2}.metric-box span{color:var(--muted);font-size:14px}
    .responsibility-card{padding:26px;height:100%;background:linear-gradient(145deg,#fff,#effaf2)}.responsibility-card .icon{width:46px;height:46px;border-radius:16px;display:grid;place-items:center;background:var(--gradient);color:#fff;font-weight:900;font-size:21px;margin-bottom:18px}.responsibility-card h3{font-size:21px;font-weight:900}.responsibility-card p{color:var(--muted);font-size:15px}
    .image-story{display:grid;grid-template-columns:1.1fr .9fr;gap:28px;align-items:stretch}.image-story img{height:100%;min-height:360px;width:100%;object-fit:cover;border-radius:var(--radius-xl);box-shadow:var(--shadow)}.story-copy{padding:30px;border-radius:var(--radius-xl);background:var(--deep);color:#fff}.story-copy h2{font-size:30px;font-weight:900}.story-copy p{color:rgba(255,255,255,.78)}.story-copy ul{padding-left:20px;color:rgba(255,255,255,.82)}.story-copy li{margin:10px 0}
    .notice{padding:22px 26px;border-left:5px solid var(--orange);border-radius:0 var(--radius-lg) var(--radius-lg) 0;background:#fff8e8;color:var(--deep-2)}
    .accordion-item{border:1px solid var(--line)!important;border-radius:16px!important;overflow:hidden;margin-bottom:12px;background:#fff}.accordion-button{font-weight:800;color:var(--deep-2);background:#fff;padding:20px}.accordion-button:not(.collapsed){color:var(--green);background:var(--bg-2);box-shadow:none}.accordion-button:after{filter:hue-rotate(80deg)}.accordion-body{color:var(--muted);padding:0 20px 20px;background:var(--bg-2)}
    .cta-band{padding:38px 42px;border-radius:var(--radius-xl);background:var(--gradient-warm);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:28px;box-shadow:var(--shadow)}.cta-band h2{font-size:30px;font-weight:900;margin:0 0 8px}.cta-band p{margin:0;color:rgba(255,255,255,.86)}
    .footer{background:var(--deep);color:#d8e9df;padding:54px 0 92px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:45px}.footer h2,.footer h3{color:#fff;font-weight:900}.footer h2{font-size:23px}.footer h3{font-size:16px}.footer p{color:#a9c2b4;max-width:520px}.footer-links{display:grid;gap:9px;color:#b7d0c1;font-size:14px}.footer-links a:hover,.footer-bottom a:hover{color:#fbbf24}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:35px;padding-top:20px;display:flex;flex-wrap:wrap;gap:16px;color:#91ada0;font-size:13px}
    .fixed-cta{position:fixed;z-index:999;bottom:0;left:0;right:0;background:rgba(14,47,36,.97);color:#fff;border-top:1px solid rgba(167,243,208,.2);box-shadow:0 -12px 30px rgba(14,47,36,.2);padding:10px 0}.fixed-inner{display:flex;align-items:center;justify-content:space-between;gap:18px}.fixed-copy strong{display:block}.fixed-copy span{font-size:13px;color:#b8d4c4}
    @media(max-width:991px){.inner-hero h1{font-size:42px}.metrics-wall{grid-template-columns:repeat(2,1fr)}.image-story{grid-template-columns:1fr}.image-story img{min-height:280px}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:767px){body{padding-bottom:78px}.site-container{padding:0 17px}.topbar{padding:12px 0}.brand-text span:first-child{font-size:17px}.brand-text span:last-child{font-size:11px}.segmented-wrap{padding-bottom:10px}.segmented-nav{border-radius:18px}.inner-hero{padding:48px 0 42px}.inner-hero h1{font-size:35px}.inner-hero p{font-size:16px}.section{padding:48px 0}.section-title{font-size:29px}.feature-image{height:220px}.feature-body{padding:22px}.metrics-wall{grid-template-columns:1fr 1fr}.cta-band{padding:28px 22px;display:block}.cta-band .btn-brand{margin-top:20px}.fixed-inner{gap:8px}.fixed-copy{max-width:56%}.fixed-copy strong{font-size:14px}.fixed-copy span{font-size:11px;display:block;line-height:1.35}.fixed-inner .btn-brand,.fixed-inner .btn-soft{padding:10px 12px;font-size:13px}.footer-grid{grid-template-columns:1fr;gap:25px}.footer{padding-bottom:105px}.footer-bottom{display:grid;gap:8px}}
    @media(max-width:375px){.brand-mark{width:36px;height:36px;border-radius:12px}.brand-text span:first-child{font-size:15px}.metrics-wall{grid-template-columns:1fr}.fixed-copy{display:none}.fixed-inner{justify-content:center}.fixed-inner a{flex:1}}

/* roulang page: category2 */
:root{
      --green:#16a34a;
      --green-2:#13a36f;
      --teal:#0ea5a8;
      --orange:#f59e0b;
      --ink:#17231f;
      --deep:#0e2f24;
      --deep-2:#12372a;
      --muted:#5f6f68;
      --soft:#87938d;
      --bg:#f7faf6;
      --bg-2:#eef7f1;
      --white:#ffffff;
      --line:rgba(18,55,42,.12);
      --line-strong:rgba(22,163,74,.28);
      --shadow:0 18px 45px rgba(18,55,42,.10);
      --shadow-hover:0 24px 60px rgba(18,55,42,.14);
      --radius-xl:24px;
      --radius-lg:18px;
      --radius-md:14px;
      --container:1240px;
      --gradient:linear-gradient(135deg,#16a34a 0%,#13a36f 50%,#0ea5a8 100%);
      --gradient-warm:linear-gradient(135deg,#16a34a 0%,#0ea5a8 55%,#f59e0b 100%);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{
      margin:0;
      font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;
      color:var(--ink);
      background:radial-gradient(circle at 10% 0%,rgba(22,163,74,.08),transparent 34%),linear-gradient(180deg,#fbfdf9 0%,var(--bg) 48%,#fff 100%);
      line-height:1.75;
      letter-spacing:0;
      padding-bottom:88px;
    }
    a{color:inherit;text-decoration:none;transition:.2s ease}
    a:hover{color:var(--green)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    .site-container{max-width:var(--container);margin:0 auto;padding:0 24px}
    .section{padding:68px 0}
    .section-tight{padding:44px 0}
    .section-title{font-size:36px;line-height:1.25;margin:0;color:var(--ink);font-weight:900;letter-spacing:0}
    .section-lead{font-size:17px;color:var(--muted);margin:14px 0 0;max-width:820px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid var(--line-strong);border-radius:999px;background:rgba(255,255,255,.78);color:var(--deep-2);font-size:14px;font-weight:800}
    .eyebrow::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gradient)}
    .btn-brand,.btn-soft,.btn-outline-brand{
      display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 20px;font-weight:900;border:1px solid transparent;transition:.22s ease;white-space:normal;line-height:1.25;
    }
    .btn-brand{background:var(--gradient);color:#fff;box-shadow:0 12px 24px rgba(22,163,74,.22)}
    .btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px rgba(22,163,74,.28);filter:saturate(1.05)}
    .btn-soft{background:rgba(22,163,74,.10);color:var(--deep-2);border-color:rgba(22,163,74,.18)}
    .btn-soft:hover{background:rgba(22,163,74,.16);color:var(--deep-2);transform:translateY(-2px)}
    .btn-outline-brand{background:rgba(255,255,255,.72);border-color:rgba(18,55,42,.18);color:var(--deep-2)}
    .btn-outline-brand:hover{background:#fff;border-color:rgba(22,163,74,.36);color:var(--green);transform:translateY(-2px)}
    .btn-brand:focus-visible,.btn-soft:focus-visible,.btn-outline-brand:focus-visible,.nav-link-chip:focus-visible,.footer a:focus-visible,.accordion-button:focus-visible,.form-control:focus-visible,.form-select:focus-visible{
      outline:3px solid rgba(245,158,11,.42);outline-offset:3px;box-shadow:none;
    }
    .badge-metric{
      display:inline-flex;align-items:center;gap:8px;padding:9px 12px;border-radius:999px;background:linear-gradient(#fff,#fff) padding-box,var(--gradient) border-box;border:1px solid transparent;color:var(--deep-2);font-size:14px;font-weight:800;
    }
    .badge-metric strong{font-size:18px;color:var(--green);line-height:1}
    .site-header{position:sticky;top:0;z-index:1000;background:rgba(247,250,246,.88);backdrop-filter:blur(18px);border-bottom:1px solid rgba(18,55,42,.10);transition:.2s ease}
    .topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0 12px}
    .brand-logo{display:flex;align-items:center;gap:12px;font-weight:900;color:var(--deep)}
    .brand-mark{width:42px;height:42px;border-radius:15px;background:var(--gradient-warm);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 12px 26px rgba(22,163,74,.22)}
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-text span:first-child{font-size:20px}
    .brand-text span:last-child{font-size:12px;color:var(--muted);font-weight:800;margin-top:4px}
    .navbar-toggler{border:1px solid var(--line);border-radius:14px;padding:8px 10px;background:#fff}
    .navbar-toggler:focus{box-shadow:0 0 0 3px rgba(22,163,74,.16)}
    .segmented-nav{display:flex;gap:8px;align-items:center;overflow-x:auto;padding:8px;background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:999px;box-shadow:0 10px 24px rgba(18,55,42,.06);scrollbar-width:none}
    .segmented-nav::-webkit-scrollbar{display:none}
    .nav-link-chip{flex:0 0 auto;padding:9px 15px;border-radius:999px;color:var(--muted);font-weight:900;font-size:14px;border:1px solid transparent}
    .nav-link-chip:hover{background:rgba(22,163,74,.10);color:var(--deep-2)}
    .nav-link-chip.active{background:var(--gradient);color:#fff;box-shadow:0 8px 18px rgba(22,163,74,.20)}
    .category-hero{
      position:relative;
      overflow:hidden;
      color:#fff;
      background-image:linear-gradient(90deg,rgba(14,47,36,.94),rgba(14,47,36,.78) 50%,rgba(14,47,36,.34)),url('/assets/images/backpic/back-2.webp');
      background-size:cover;
      background-position:center;
      padding:78px 0 54px;
    }
    .category-hero::after{content:"";position:absolute;inset:auto 0 0;height:110px;background:linear-gradient(180deg,transparent,rgba(247,250,246,.98))}
    .hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:minmax(0,1.25fr) minmax(320px,.75fr);gap:34px;align-items:end}
    .breadcrumb-line{display:flex;flex-wrap:wrap;gap:8px;color:rgba(255,255,255,.78);font-size:14px;margin-bottom:14px}
    .breadcrumb-line a:hover{color:#a7f3d0;text-decoration:underline}
    .category-hero h1{font-size:48px;line-height:1.15;margin:18px 0;font-weight:900;letter-spacing:0;max-width:860px}
    .category-hero p{font-size:18px;color:rgba(255,255,255,.88);max-width:820px;margin:0 0 22px}
    .hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px}
    .category-hero .btn-outline-brand{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.34);color:#fff}
    .category-hero .btn-outline-brand:hover{background:#fff;color:var(--deep)}
    .hero-metrics{display:flex;flex-wrap:wrap;gap:10px}
    .category-hero .badge-metric{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.26);color:#fff;backdrop-filter:blur(10px)}
    .category-hero .badge-metric strong{color:#a7f3d0}
    .join-panel{background:rgba(255,255,255,.13);border:1px solid rgba(255,255,255,.26);border-radius:var(--radius-xl);padding:22px;backdrop-filter:blur(12px);box-shadow:0 24px 60px rgba(0,0,0,.16)}
    .join-panel h2{font-size:22px;margin:0 0 10px;font-weight:900;color:#fff}
    .join-panel p{font-size:15px;margin:0 0 18px;color:rgba(255,255,255,.82)}
    .join-count{display:flex;align-items:center;justify-content:space-between;gap:14px;padding:14px;border-radius:18px;background:rgba(255,255,255,.14);margin-bottom:14px}
    .join-count strong{font-size:28px;color:#a7f3d0;line-height:1}
    .join-count span{font-size:13px;color:rgba(255,255,255,.80)}
    .card-modern{background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:var(--radius-xl);box-shadow:var(--shadow);transition:.22s ease;overflow:hidden}
    .card-modern:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(22,163,74,.28)}
    .card-pad{padding:26px}
    .guide-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:24px;align-items:stretch}
    .feature-card{min-height:100%;background:linear-gradient(145deg,#fff,rgba(238,247,241,.92));border:1px solid var(--line);border-radius:var(--radius-xl);padding:28px;box-shadow:var(--shadow)}
    .feature-card h2,.feature-card h3{font-weight:900;margin:0 0 12px}
    .feature-card p{color:var(--muted);margin:0}
    .stack-list{display:grid;gap:14px}
    .stack-item{display:flex;gap:14px;align-items:flex-start;padding:18px;border-radius:18px;background:#fff;border:1px solid var(--line);transition:.2s ease}
    .stack-item:hover{border-color:rgba(22,163,74,.28);transform:translateY(-2px)}
    .step-number{flex:0 0 auto;width:38px;height:38px;border-radius:14px;background:var(--gradient);color:#fff;display:grid;place-items:center;font-weight:900}
    .step-track{position:relative;display:grid;gap:16px;margin-top:26px}
    .step-card{display:grid;grid-template-columns:64px 1fr auto;gap:18px;align-items:center;padding:20px;border-radius:22px;background:#fff;border:1px solid var(--line);box-shadow:0 12px 30px rgba(18,55,42,.07)}
    .step-card h3{font-size:20px;font-weight:900;margin:0 0 6px}
    .step-card p{margin:0;color:var(--muted)}
    .tag{display:inline-flex;align-items:center;padding:6px 10px;border-radius:999px;background:rgba(22,163,74,.10);color:var(--deep-2);font-size:13px;font-weight:900}
    .media-split{display:grid;grid-template-columns:.92fr 1.08fr;gap:28px;align-items:center}
    .image-frame{border-radius:var(--radius-xl);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow);background:#fff}
    .image-frame img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;transition:.3s ease}
    .image-frame:hover img{transform:scale(1.03)}
    .copy-block{background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);padding:30px;box-shadow:var(--shadow)}
    .copy-block h2{font-size:32px;line-height:1.25;margin:0 0 16px;font-weight:900}
    .copy-block p{color:var(--muted);margin:0 0 14px}
    .notice-band{background:linear-gradient(135deg,rgba(14,47,36,.98),rgba(18,55,42,.94));color:#fff;border-radius:var(--radius-xl);padding:30px;position:relative;overflow:hidden}
    .notice-band::after{content:"";position:absolute;right:-40px;top:-70px;width:220px;height:220px;border-radius:50%;background:rgba(245,158,11,.18)}
    .notice-band h2{font-size:30px;font-weight:900;margin:0 0 12px}
    .notice-band p{color:rgba(255,255,255,.82);margin:0;max-width:860px}
    .check-list{list-style:none;margin:22px 0 0;padding:0;display:grid;gap:12px}
    .check-list li{display:flex;gap:10px;align-items:flex-start;color:var(--muted)}
    .check-list li::before{content:"✓";flex:0 0 auto;width:24px;height:24px;border-radius:50%;background:rgba(22,163,74,.12);color:var(--green);display:grid;place-items:center;font-weight:900}
    .info-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
    .info-tile{padding:20px;border-radius:20px;background:#fff;border:1px solid var(--line);box-shadow:0 12px 28px rgba(18,55,42,.06)}
    .info-tile strong{display:block;font-size:26px;color:var(--green);line-height:1;margin-bottom:8px}
    .info-tile span{font-weight:900;color:var(--deep)}
    .info-tile p{margin:8px 0 0;color:var(--muted);font-size:14px}
    .topic-grid{display:grid;grid-template-columns:1fr 1fr 1fr;gap:18px}
    .topic-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);padding:22px;min-height:100%;transition:.22s ease}
    .topic-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:rgba(22,163,74,.28)}
    .topic-card h3{font-size:21px;font-weight:900;margin:12px 0 8px}
    .topic-card p{color:var(--muted);margin:0 0 16px}
    .article-list{display:grid;gap:14px}
    .article-row{display:grid;grid-template-columns:118px 1fr auto;gap:18px;align-items:center;padding:18px;border-radius:20px;background:#fff;border:1px solid var(--line);transition:.2s ease}
    .article-row:hover{border-color:rgba(22,163,74,.30);box-shadow:0 14px 32px rgba(18,55,42,.08)}
    .article-date{color:var(--green);font-weight:900}
    .article-row h3{font-size:19px;font-weight:900;margin:0 0 5px}
    .article-row p{margin:0;color:var(--muted)}
    .form-panel{display:grid;grid-template-columns:.9fr 1.1fr;gap:24px;align-items:start}
    .guide-form{background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);padding:26px;box-shadow:var(--shadow)}
    .form-control,.form-select{border-radius:16px;border:1px solid rgba(18,55,42,.16);padding:12px 14px;background:#fbfdf9}
    .form-control:focus,.form-select:focus{border-color:rgba(22,163,74,.54);box-shadow:0 0 0 4px rgba(22,163,74,.12)}
    .accordion{display:grid;gap:12px}
    .accordion-item{border:1px solid var(--line);border-radius:18px!important;overflow:hidden;background:#fff;box-shadow:0 10px 26px rgba(18,55,42,.05)}
    .accordion-button{font-weight:900;color:var(--deep);background:#fff;padding:18px 20px}
    .accordion-button:not(.collapsed){background:linear-gradient(90deg,rgba(22,163,74,.12),rgba(14,165,168,.08));color:var(--deep);box-shadow:inset 5px 0 0 var(--green)}
    .accordion-button::after{filter:grayscale(1)}
    .accordion-body{color:var(--muted);padding:0 20px 20px}
    .related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
    .related-card{padding:22px;border-radius:var(--radius-lg);background:linear-gradient(145deg,#fff,rgba(238,247,241,.86));border:1px solid var(--line);transition:.22s ease}
    .related-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:rgba(22,163,74,.28)}
    .cta-band{background:linear-gradient(135deg,var(--deep),#164936);color:#fff;border-radius:var(--radius-xl);padding:34px;display:grid;grid-template-columns:1fr auto;gap:22px;align-items:center;box-shadow:var(--shadow)}
    .cta-band h2{font-size:30px;font-weight:900;margin:0 0 8px}
    .cta-band p{margin:0;color:rgba(255,255,255,.80);max-width:760px}
    .fixed-cta{position:fixed;left:0;right:0;bottom:0;z-index:999;background:rgba(14,47,36,.94);backdrop-filter:blur(16px);border-top:1px solid rgba(255,255,255,.14);box-shadow:0 -18px 40px rgba(18,55,42,.18)}
    .fixed-cta-inner{max-width:var(--container);margin:0 auto;padding:12px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px;color:#fff}
    .fixed-cta strong{display:block;line-height:1.2}
    .fixed-cta span{font-size:13px;color:rgba(255,255,255,.72)}
    .fixed-actions{display:flex;gap:10px;flex-wrap:wrap}
    .footer{background:var(--deep);color:#fff;padding:58px 0 28px}
    .footer-grid{display:grid;grid-template-columns:1.25fr .75fr .75fr;gap:34px}
    .footer h2,.footer h3{font-weight:900;margin:0 0 14px}
    .footer p{color:rgba(255,255,255,.72);margin:0;max-width:560px}
    .footer-links{display:grid;gap:9px}
    .footer a{color:rgba(255,255,255,.78)}
    .footer a:hover{color:#a7f3d0;text-decoration:underline}
    .footer-bottom{border-top:1px solid rgba(255,255,255,.12);margin-top:34px;padding-top:18px;display:flex;gap:14px;flex-wrap:wrap;color:rgba(255,255,255,.68);font-size:14px}
    @media (max-width: 1199px){
      .category-hero h1{font-size:42px}
      .section-title{font-size:32px}
      .info-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media (max-width: 991px){
      .segmented-wrap{padding-bottom:14px}
      .segmented-nav{border-radius:22px;align-items:flex-start}
      .hero-inner,.guide-grid,.media-split,.form-panel,.cta-band{grid-template-columns:1fr}
      .join-panel{max-width:620px}
      .topic-grid,.related-grid{grid-template-columns:1fr 1fr}
      .step-card{grid-template-columns:52px 1fr}
      .step-card .tag{grid-column:2}
      .footer-grid{grid-template-columns:1fr 1fr}
    }
    @media (max-width: 767px){
      body{padding-bottom:82px}
      .site-container{padding:0 18px}
      .section{padding:48px 0}
      .category-hero{padding:54px 0 38px}
      .category-hero h1{font-size:34px}
      .category-hero p{font-size:16px}
      .section-title,.copy-block h2{font-size:27px}
      .topbar{padding:12px 0}
      .brand-text span:first-child{font-size:18px}
      .brand-text span:last-child{display:none}
      .segmented-nav{padding:8px;border-radius:18px}
      .nav-link-chip{font-size:13px;padding:8px 12px}
      .topic-grid,.related-grid,.info-grid{grid-template-columns:1fr}
      .article-row{grid-template-columns:1fr;gap:8px}
      .fixed-cta-inner{padding:10px 14px;display:grid;grid-template-columns:1fr}
      .fixed-cta .fixed-copy{display:none}
      .fixed-actions{display:grid;grid-template-columns:1fr 1fr}
      .fixed-actions a{padding:10px 12px;font-size:14px}
      .footer-grid{grid-template-columns:1fr}
      .footer-bottom{display:grid;gap:8px}
    }
    @media (max-width: 375px){
      .category-hero h1{font-size:31px}
      .btn-brand,.btn-soft,.btn-outline-brand{width:100%;padding:11px 14px}
      .hero-actions,.join-panel .d-flex{display:grid!important;grid-template-columns:1fr;width:100%}
    }

/* roulang page: category4 */
:root{
 --green:#16a34a;--green-2:#13a36f;--teal:#0ea5a8;--orange:#f59e0b;
 --ink:#17231f;--deep:#0e2f24;--deep-2:#12372a;--muted:#5f6f68;--soft:#87938d;
 --bg:#f7faf6;--bg-2:#eef7f1;--white:#fff;--line:rgba(18,55,42,.12);
 --line-strong:rgba(22,163,74,.28);--shadow:0 18px 45px rgba(18,55,42,.10);
 --shadow-hover:0 24px 60px rgba(18,55,42,.14);--radius-xl:24px;--radius-lg:18px;
 --radius-md:14px;--container:1240px;--gradient:linear-gradient(135deg,#16a34a 0%,#13a36f 50%,#0ea5a8 100%);
 --gradient-warm:linear-gradient(135deg,#16a34a 0%,#0ea5a8 55%,#f59e0b 100%);
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;padding-bottom:86px;font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;color:var(--ink);background:radial-gradient(circle at 9% 0,rgba(22,163,74,.08),transparent 31%),linear-gradient(180deg,#fbfdf9 0%,var(--bg) 48%,#fff 100%);line-height:1.75}
a{color:inherit;text-decoration:none;transition:.22s ease}
a:hover{color:var(--green)}
img{display:block;max-width:100%}
button,input,select,textarea{font:inherit}
.site-container{max-width:var(--container);margin:auto;padding:0 24px}
.section{padding:68px 0}
.section-tight{padding:44px 0}
.section-title{margin:0;font-size:36px;line-height:1.28;font-weight:850;color:var(--ink)}
.section-lead{max-width:800px;margin:13px 0 0;color:var(--muted);font-size:17px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 12px;border:1px solid var(--line-strong);border-radius:999px;background:rgba(255,255,255,.82);color:var(--deep-2);font-size:14px;font-weight:800}
.eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gradient)}
.btn-brand,.btn-soft,.btn-outline-brand{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 20px;border:1px solid transparent;border-radius:999px;font-weight:800;line-height:1.3;transition:.22s ease}
.btn-brand{background:var(--gradient);color:#fff;box-shadow:0 12px 24px rgba(22,163,74,.22)}
.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px rgba(22,163,74,.28)}
.btn-soft{background:rgba(22,163,74,.10);border-color:rgba(22,163,74,.18);color:var(--deep-2)}
.btn-soft:hover{background:rgba(22,163,74,.16);color:var(--deep);transform:translateY(-2px)}
.btn-outline-brand{background:#fff;border-color:var(--line);color:var(--deep-2)}
.btn-outline-brand:hover{border-color:var(--line-strong);background:var(--bg-2);color:var(--green);transform:translateY(-2px)}
.btn-brand:focus-visible,.btn-soft:focus-visible,.btn-outline-brand:focus-visible,.nav-link-chip:focus-visible,.accordion-button:focus-visible,.knowledge-chip:focus-visible{outline:3px solid rgba(245,158,11,.45);outline-offset:3px;box-shadow:none}
.badge-metric{display:inline-flex;align-items:center;gap:7px;padding:8px 12px;border:1px solid transparent;border-radius:999px;background:linear-gradient(#fff,#fff) padding-box,var(--gradient) border-box;color:var(--deep-2);font-size:14px;font-weight:750}
.badge-metric strong{font-size:18px;line-height:1;color:var(--green)}
.site-header{position:sticky;top:0;z-index:1000;background:rgba(247,250,246,.89);backdrop-filter:blur(18px);border-bottom:1px solid rgba(18,55,42,.1)}
.topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0 12px}
.brand-logo{display:flex;align-items:center;gap:12px;font-weight:900;color:var(--deep)}
.brand-mark{display:grid;place-items:center;width:42px;height:42px;border-radius:15px;background:var(--gradient-warm);box-shadow:0 12px 26px rgba(22,163,74,.22);color:#fff;font-weight:900}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text span:first-child{font-size:20px}
.brand-text span:last-child{margin-top:4px;color:var(--muted);font-size:12px;font-weight:700}
.navbar-toggler{padding:8px 10px;border:1px solid var(--line);border-radius:14px;background:#fff}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(22,163,74,.16)}
.segmented-nav{display:flex;align-items:center;gap:8px;overflow-x:auto;padding:8px;border:1px solid var(--line);border-radius:999px;background:rgba(255,255,255,.78);box-shadow:0 10px 24px rgba(18,55,42,.06);scrollbar-width:none}
.segmented-nav::-webkit-scrollbar{display:none}
.nav-link-chip{flex:0 0 auto;padding:9px 15px;border:1px solid transparent;border-radius:999px;color:var(--muted);font-size:14px;font-weight:800}
.nav-link-chip:hover{background:rgba(22,163,74,.1);color:var(--deep-2)}
.nav-link-chip.active{background:var(--gradient);box-shadow:0 8px 18px rgba(22,163,74,.20);color:#fff}
.page-hero{position:relative;overflow:hidden;padding:62px 0 58px;background:linear-gradient(90deg,rgba(14,47,36,.94),rgba(14,47,36,.72) 55%,rgba(14,47,36,.42)),url('/assets/images/backpic/back-2.webp') center/cover;color:#fff}
.page-hero:after{content:"";position:absolute;right:-6%;bottom:-85px;width:320px;height:320px;border:45px solid rgba(167,243,208,.15);border-radius:50%}
.hero-inner{position:relative;z-index:1;max-width:900px}
.breadcrumbs{display:flex;flex-wrap:wrap;gap:9px;color:rgba(255,255,255,.75);font-size:14px}
.breadcrumbs a:hover{color:#b8f7d1}
.page-hero h1{margin:14px 0 13px;font-size:50px;line-height:1.15;font-weight:900}
.page-hero p{max-width:780px;margin:0;color:rgba(255,255,255,.88);font-size:18px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:10px;margin-top:25px}
.page-hero .badge-metric{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.28);color:#fff;backdrop-filter:blur(8px)}
.page-hero .badge-metric strong{color:#b8f7d1}
.update-strip{margin-top:-1px;background:var(--deep);color:#dff8e7}
.update-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:12px 0;font-size:14px}
.update-label{display:flex;align-items:center;gap:9px;font-weight:800}
.update-dot{width:9px;height:9px;border-radius:50%;background:var(--orange);box-shadow:0 0 0 5px rgba(245,158,11,.16)}
.update-count{color:#a7f3d0;font-weight:800}
.knowledge-layout{display:grid;grid-template-columns:280px minmax(0,1fr);gap:28px;align-items:start}
.directory{position:sticky;top:142px;padding:22px;border:1px solid var(--line);border-radius:var(--radius-xl);background:rgba(255,255,255,.82);box-shadow:0 14px 34px rgba(18,55,42,.06)}
.directory h2{margin:0 0 7px;font-size:20px;font-weight:850}
.directory p{margin:0 0 16px;color:var(--muted);font-size:14px}
.knowledge-chip{display:flex;align-items:center;justify-content:space-between;width:100%;margin:8px 0;padding:10px 12px;border:1px solid transparent;border-radius:12px;background:transparent;color:var(--deep-2);font-size:15px;font-weight:750;text-align:left}
.knowledge-chip:hover{background:var(--bg-2);color:var(--green)}
.knowledge-chip span{color:var(--soft);font-size:12px}
.feature-panel{display:grid;grid-template-columns:1.05fr .95fr;overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-xl);background:#fff;box-shadow:var(--shadow)}
.feature-image{min-height:310px;overflow:hidden}
.feature-image img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.feature-panel:hover .feature-image img{transform:scale(1.04)}
.feature-copy{display:flex;flex-direction:column;align-items:flex-start;justify-content:center;padding:34px}
.topic-tag{display:inline-flex;padding:5px 10px;border-radius:999px;background:rgba(22,163,74,.11);color:var(--green);font-size:13px;font-weight:850}
.feature-copy h2{margin:14px 0 10px;font-size:28px;line-height:1.35;font-weight:850}
.feature-copy p{margin:0 0 18px;color:var(--muted)}
.article-list{display:grid;gap:14px;margin-top:18px}
.article-item{display:grid;grid-template-columns:92px 1fr auto;gap:18px;align-items:center;padding:19px 20px;border:1px solid var(--line);border-radius:var(--radius-lg);background:rgba(255,255,255,.82);transition:.22s ease}
.article-item:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:0 15px 34px rgba(18,55,42,.08)}
.article-date{padding-right:16px;border-right:1px solid var(--line);color:var(--muted);font-size:13px;line-height:1.35}
.article-date strong{display:block;color:var(--green);font-size:20px}
.article-main h3{margin:0 0 5px;font-size:18px;font-weight:850}
.article-main p{margin:0;color:var(--muted);font-size:14px;line-height:1.65}
.article-item .btn-soft{padding:9px 14px;font-size:14px;white-space:nowrap}
.reading-card{height:100%;padding:30px;border-radius:var(--radius-xl);background:linear-gradient(145deg,#effaf2,#fff 72%);border:1px solid var(--line)}
.reading-card h3{margin:10px 0 12px;font-size:24px;font-weight:850}
.reading-card p{color:var(--muted)}
.number-list{margin:20px 0 0;padding:0;list-style:none;counter-reset:item}
.number-list li{position:relative;min-height:54px;margin:13px 0;padding:13px 12px 12px 58px;border-radius:14px;background:#fff;color:var(--deep-2);font-weight:700}
.number-list li:before{counter-increment:item;content:counter(item);position:absolute;left:12px;top:10px;display:grid;place-items:center;width:31px;height:31px;border-radius:10px;background:var(--gradient);color:#fff;font-weight:900}
.term-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.term-card{padding:23px;border:1px solid var(--line);border-radius:var(--radius-lg);background:#fff;transition:.22s ease}
.term-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow);transform:translateY(-2px)}
.term-card .term-letter{display:grid;place-items:center;width:38px;height:38px;border-radius:12px;background:rgba(14,165,168,.11);color:var(--teal);font-weight:900}
.term-card h3{margin:13px 0 7px;font-size:20px;font-weight:850}
.term-card p{margin:0;color:var(--muted);font-size:15px}
.deep-story{overflow:hidden;border:1px solid var(--line);border-radius:var(--radius-xl);background:var(--deep);color:#eefaf1}
.deep-story-grid{display:grid;grid-template-columns:.92fr 1.08fr}
.deep-story-image{min-height:410px}
.deep-story-image img{width:100%;height:100%;object-fit:cover}
.deep-story-copy{padding:42px}
.deep-story-copy .eyebrow{border-color:rgba(167,243,208,.28);background:rgba(255,255,255,.08);color:#c9f8d9}
.deep-story-copy h2{margin:17px 0 15px;font-size:32px;line-height:1.32;font-weight:850}
.deep-story-copy p{color:rgba(238,250,241,.78)}
.note-list{margin:20px 0 0;padding:0;list-style:none}
.note-list li{position:relative;margin:10px 0;padding-left:26px;color:#d9f3e2}
.note-list li:before{content:"✓";position:absolute;left:0;color:#86efac;font-weight:900}
.notice-bar{display:flex;gap:17px;align-items:flex-start;padding:24px 28px;border:1px solid rgba(245,158,11,.3);border-radius:var(--radius-lg);background:linear-gradient(90deg,rgba(245,158,11,.13),rgba(255,255,255,.9));color:var(--deep-2)}
.notice-icon{flex:0 0 auto;display:grid;place-items:center;width:40px;height:40px;border-radius:13px;background:var(--orange);color:#fff;font-size:20px;font-weight:900}
.notice-bar h3{margin:0 0 3px;font-size:18px;font-weight:850}
.notice-bar p{margin:0;color:var(--muted)}
.accordion{display:grid;gap:12px}
.accordion-item{overflow:hidden;border:1px solid var(--line)!important;border-radius:var(--radius-lg)!important;background:rgba(255,255,255,.85)}
.accordion-button{padding:19px 21px;background:transparent!important;color:var(--deep)!important;font-size:17px;font-weight:850;box-shadow:none!important}
.accordion-button:not(.collapsed){border-left:5px solid var(--green);padding-left:16px}
.accordion-button:after{background-size:1rem;filter:sepia(.2) saturate(3) hue-rotate(90deg)}
.accordion-body{padding:0 22px 20px;color:var(--muted)}
.related-grid{display:grid;grid-template-columns:1.15fr .85fr .85fr;gap:16px}
.related-card{min-height:215px;padding:27px;border:1px solid var(--line);border-radius:var(--radius-xl);background:#fff;transition:.22s ease}
.related-card:first-child{background:linear-gradient(135deg,#e9f9ef,#f8fffa);border-color:rgba(22,163,74,.22)}
.related-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.related-card h3{margin:13px 0 9px;font-size:22px;font-weight:850}
.related-card p{margin:0 0 17px;color:var(--muted);font-size:15px}
.cta-panel{display:flex;align-items:center;justify-content:space-between;gap:30px;padding:36px 40px;border-radius:var(--radius-xl);background:linear-gradient(120deg,#0e2f24,#12372a 52%,#0b6759);color:#fff;box-shadow:var(--shadow)}
.cta-panel h2{margin:0 0 8px;font-size:31px;font-weight:850}
.cta-panel p{max-width:690px;margin:0;color:rgba(255,255,255,.76)}
.cta-panel .btn-soft{flex:0 0 auto;background:#fff;color:var(--deep);border-color:#fff}
.cta-panel .btn-soft:hover{background:#dff8e7}
.footer{padding:60px 0 104px;background:var(--deep);color:#d9eee0}
.footer-grid{display:grid;grid-template-columns:1.5fr .8fr .8fr;gap:48px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.13)}
.footer h2,.footer h3{margin:0 0 13px;color:#fff;font-weight:850}
.footer h2{font-size:24px}.footer h3{font-size:16px}
.footer p{max-width:500px;margin:0;color:rgba(217,238,224,.72);font-size:14px}
.footer-links{display:grid;gap:9px}
.footer a{color:rgba(217,238,224,.76);font-size:14px}
.footer a:hover{color:#fbc968}
.footer-bottom{display:flex;flex-wrap:wrap;gap:10px 20px;padding-top:22px;color:rgba(217,238,224,.62);font-size:13px}
.fixed-cta{position:fixed;z-index:999;right:0;bottom:0;left:0;border-top:1px solid rgba(167,243,208,.18);background:rgba(14,47,36,.94);box-shadow:0 -12px 35px rgba(14,47,36,.2);backdrop-filter:blur(16px)}
.fixed-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;padding:11px 0}
.fixed-title{color:#fff;font-weight:850}.fixed-tip{margin-left:10px;color:#b6d3c0;font-size:14px}
.fixed-actions{display:flex;gap:10px}.fixed-actions .btn-brand,.fixed-actions .btn-soft{padding:10px 17px;font-size:14px}.fixed-actions .btn-soft{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.25)}
@media(max-width:991px){
 .knowledge-layout{grid-template-columns:1fr}.directory{position:static;display:grid;grid-template-columns:repeat(3,1fr);gap:8px}.directory h2,.directory p{grid-column:1/-1}.knowledge-chip{margin:0}
 .page-hero h1{font-size:42px}.deep-story-grid{grid-template-columns:1fr}.deep-story-image{min-height:280px}
 .footer-grid{grid-template-columns:1.2fr 1fr 1fr}
}
@media(max-width:767px){
 body{padding-bottom:80px}.site-container{padding:0 17px}.topbar{padding:12px 0 10px}.brand-text span:first-child{font-size:17px}.brand-text span:last-child{display:none}
 .segmented-wrap{padding-bottom:10px}.segmented-nav{border-radius:16px}.section{padding:48px 0}.section-tight{padding:32px 0}.section-title{font-size:29px}.section-lead{font-size:16px}
 .page-hero{padding:46px 0}.page-hero h1{font-size:35px}.page-hero p{font-size:16px}.update-inner{align-items:flex-start;flex-direction:column;gap:3px}
 .directory{grid-template-columns:repeat(2,1fr);padding:17px}.feature-panel{grid-template-columns:1fr}.feature-image{min-height:220px}.feature-copy{padding:25px}.feature-copy h2{font-size:24px}
 .article-item{grid-template-columns:65px 1fr;gap:12px;padding:16px}.article-date{padding-right:10px}.article-item .btn-soft{grid-column:2;width:max-content}.article-main h3{font-size:16px}
 .term-grid,.related-grid{grid-template-columns:1fr}.deep-story-copy{padding:28px}.deep-story-copy h2{font-size:27px}.notice-bar{padding:20px;gap:12px}.cta-panel{display:block;padding:29px}.cta-panel h2{font-size:27px}.cta-panel .btn-soft{margin-top:18px}
 .footer{padding:48px 0 100px}.footer-grid{grid-template-columns:1fr;gap:28px}.fixed-cta-inner{gap:10px}.fixed-title{font-size:14px}.fixed-tip{display:none}.fixed-actions{flex:1;justify-content:flex-end}.fixed-actions .btn-brand,.fixed-actions .btn-soft{flex:1;padding:10px 8px;font-size:13px}
}
@media(max-width:375px){.directory{grid-template-columns:1fr}.page-hero h1{font-size:32px}.fixed-actions .btn-soft{display:none}}

/* roulang page: category6 */
:root{
      --green:#16a34a;--green-2:#13a36f;--teal:#0ea5a8;--orange:#f59e0b;
      --ink:#17231f;--deep:#0e2f24;--deep-2:#12372a;--muted:#5f6f68;--soft:#87938d;
      --bg:#f7faf6;--bg-2:#eef7f1;--white:#fff;--line:rgba(18,55,42,.12);
      --line-strong:rgba(22,163,74,.28);--shadow:0 18px 45px rgba(18,55,42,.10);
      --shadow-hover:0 24px 60px rgba(18,55,42,.14);--radius-xl:24px;--radius-lg:18px;
      --radius-md:14px;--container:1240px;
      --gradient:linear-gradient(135deg,#16a34a 0%,#13a36f 50%,#0ea5a8 100%);
      --gradient-warm:linear-gradient(135deg,#16a34a 0%,#0ea5a8 55%,#f59e0b 100%);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:radial-gradient(circle at 10% 0%,rgba(22,163,74,.08),transparent 34%),linear-gradient(180deg,#fbfdf9 0%,var(--bg) 48%,#fff 100%);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.75;padding-bottom:82px}
    a{color:inherit;text-decoration:none;transition:.2s ease}
    a:hover{color:var(--green)}
    img{display:block;max-width:100%}
    button,input{font:inherit}
    .site-container{max-width:var(--container);margin:auto;padding:0 24px}
    .section{padding:70px 0}.section-tight{padding:42px 0}
    .section-title{font-size:36px;line-height:1.25;font-weight:900;margin:0;color:var(--ink)}
    .section-lead{max-width:780px;margin:14px 0 0;color:var(--muted);font-size:17px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid var(--line-strong);border-radius:999px;background:#fff;color:var(--deep-2);font-size:14px;font-weight:800}
    .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gradient)}
    .btn-brand,.btn-soft,.btn-outline-brand{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 20px;font-weight:800;border:1px solid transparent;line-height:1.25;transition:.22s ease}
    .btn-brand{background:var(--gradient);color:#fff;box-shadow:0 12px 24px rgba(22,163,74,.22)}
    .btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px rgba(22,163,74,.28)}
    .btn-soft{background:rgba(22,163,74,.1);color:var(--deep-2);border-color:rgba(22,163,74,.18)}
    .btn-soft:hover{background:rgba(22,163,74,.17);color:var(--deep-2);transform:translateY(-2px)}
    .btn-outline-brand{background:#fff;border-color:var(--line);color:var(--deep-2)}
    .btn-outline-brand:hover{border-color:var(--green);color:var(--green);transform:translateY(-2px)}
    .btn-brand:focus-visible,.btn-soft:focus-visible,.btn-outline-brand:focus-visible,.nav-link-chip:focus-visible,.footer a:focus-visible,.accordion-button:focus-visible,input:focus-visible{outline:3px solid rgba(245,158,11,.45);outline-offset:3px;box-shadow:none}
    .badge-metric{display:inline-flex;align-items:center;gap:8px;padding:8px 12px;border-radius:999px;background:linear-gradient(#fff,#fff) padding-box,var(--gradient) border-box;border:1px solid transparent;color:var(--deep-2);font-size:14px;font-weight:800}
    .badge-metric strong{font-size:18px;color:var(--green);line-height:1}
    .site-header{position:sticky;top:0;z-index:1000;background:rgba(247,250,246,.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(18,55,42,.1)}
    .topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0 12px}
    .brand-logo{display:flex;align-items:center;gap:12px;font-weight:900;color:var(--deep)}
    .brand-mark{width:42px;height:42px;border-radius:15px;background:var(--gradient-warm);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 12px 26px rgba(22,163,74,.22)}
    .brand-text{display:flex;flex-direction:column;line-height:1.15}.brand-text span:first-child{font-size:20px}.brand-text span:last-child{font-size:12px;color:var(--muted);font-weight:700;margin-top:4px}
    .navbar-toggler{border:1px solid var(--line);border-radius:14px;padding:8px 10px;background:#fff}
    .segmented-nav{display:flex;gap:8px;align-items:center;overflow-x:auto;padding:8px;background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:999px;box-shadow:0 10px 24px rgba(18,55,42,.06);scrollbar-width:none}
    .segmented-nav::-webkit-scrollbar{display:none}
    .nav-link-chip{flex:0 0 auto;padding:9px 15px;border-radius:999px;color:var(--muted);font-weight:800;font-size:14px;border:1px solid transparent}
    .nav-link-chip:hover{background:rgba(22,163,74,.1);color:var(--deep-2)}
    .nav-link-chip.active{background:var(--gradient);color:#fff;box-shadow:0 8px 18px rgba(22,163,74,.2)}
    .page-hero{padding:62px 0 54px;background:linear-gradient(100deg,rgba(238,247,241,.96),rgba(247,250,246,.86)),url('/assets/images/backpic/back-2.webp') center/cover;border-bottom:1px solid var(--line)}
    .page-hero h1{font-size:52px;line-height:1.18;font-weight:900;max-width:790px;margin:18px 0 16px}
    .page-hero p{max-width:780px;color:var(--muted);font-size:18px;margin-bottom:24px}
    .crumb{font-size:14px;color:var(--muted)}.crumb a{text-decoration:underline;text-underline-offset:4px}
    .metric-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:14px;margin-top:-28px;position:relative;z-index:2}
    .metric-box{background:#fff;border:1px solid var(--line);border-radius:18px;padding:20px 22px;box-shadow:var(--shadow)}
    .metric-box strong{display:block;font-size:31px;line-height:1.1;color:var(--deep)}.metric-box span{color:var(--muted);font-size:14px}
    .dashboard{display:grid;grid-template-columns:1.05fr .95fr;gap:22px;align-items:stretch}
    .panel{background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);box-shadow:var(--shadow);padding:30px}
    .panel h3{font-size:23px;font-weight:900;margin:0 0 8px}.panel p{color:var(--muted);margin:0 0 20px}
    .bar-item{margin:22px 0}.bar-head{display:flex;justify-content:space-between;font-size:14px;font-weight:800;margin-bottom:8px}.bar-head span:last-child{color:var(--green)}
    .bar-track{height:11px;border-radius:99px;background:#e8f1eb;overflow:hidden}.bar-fill{height:100%;border-radius:99px;background:var(--gradient)}
    .signal-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}.signal{padding:18px;border-radius:16px;background:var(--bg-2);border:1px solid rgba(22,163,74,.14)}.signal b{font-size:24px;color:var(--deep);display:block}.signal small{color:var(--muted)}
    .split{display:grid;grid-template-columns:.92fr 1.08fr;gap:34px;align-items:center}.feature-img{width:100%;height:380px;object-fit:cover;border-radius:var(--radius-xl);box-shadow:var(--shadow)}
    .note-list{padding:0;margin:22px 0 0;list-style:none}.note-list li{position:relative;padding:13px 0 13px 28px;border-bottom:1px solid var(--line);color:var(--muted)}.note-list li:before{content:"✓";position:absolute;left:0;top:13px;color:var(--green);font-weight:900}
    .timeline{border-left:2px solid rgba(22,163,74,.23);padding-left:26px}.timeline-item{position:relative;padding:0 0 25px}.timeline-item:before{content:"";position:absolute;left:-34px;top:8px;width:14px;height:14px;border-radius:50%;background:var(--gradient);border:3px solid var(--bg)}.timeline-item time{font-size:13px;color:var(--green);font-weight:900}.timeline-item h3{font-size:20px;margin:4px 0}.timeline-item p{color:var(--muted);margin:0}
    .tag{display:inline-block;padding:5px 10px;border-radius:999px;background:rgba(14,165,168,.1);color:#08777a;font-size:13px;font-weight:800}
    .method-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:16px}.method{padding:24px;border-radius:18px;background:var(--bg-2);border:1px solid var(--line)}.method b{display:flex;align-items:center;gap:10px;font-size:19px}.method b span{width:30px;height:30px;border-radius:10px;background:var(--gradient);color:#fff;display:grid;place-items:center;font-size:14px}.method p{color:var(--muted);font-size:15px;margin:12px 0 0}
    .accordion-item{border:1px solid var(--line)!important;border-radius:16px!important;overflow:hidden;margin-bottom:12px;background:#fff}.accordion-button{font-weight:800;color:var(--deep);background:#fff;padding:19px 22px}.accordion-button:not(.collapsed){color:var(--deep);background:var(--bg-2);box-shadow:none;border-left:4px solid var(--green)}.accordion-button:after{background-size:15px}.accordion-body{color:var(--muted);padding:0 22px 20px;background:var(--bg-2)}
    .cta{background:var(--deep);color:#fff;border-radius:var(--radius-xl);padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:24px;box-shadow:var(--shadow)}.cta h2{font-size:30px;margin:0 0 8px}.cta p{color:rgba(255,255,255,.72);margin:0}.cta .badge-metric{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.24)}
    .footer{background:var(--deep);color:#dcebe2;padding:58px 0 105px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:42px}.footer h2{font-size:23px;color:#fff}.footer h3{font-size:16px;color:#fff;margin-bottom:15px}.footer p{color:#a8c1b3;max-width:470px}.footer-links{display:grid;gap:9px;color:#a8c1b3}.footer-links a:hover,.footer-bottom a:hover{color:#fbbf24}.footer-bottom{display:flex;flex-wrap:wrap;gap:12px 24px;border-top:1px solid rgba(255,255,255,.14);margin-top:36px;padding-top:20px;color:#9db7a8;font-size:13px}
    .fixed-bar{position:fixed;bottom:0;left:0;right:0;z-index:999;background:rgba(14,47,36,.96);border-top:1px solid rgba(255,255,255,.15);box-shadow:0 -10px 30px rgba(14,47,36,.18);color:#fff;padding:12px 0}.fixed-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}.fixed-inner p{margin:0;color:#c9dfd1;font-size:14px}.fixed-inner strong{font-size:17px}
    @media(max-width:991px){.metric-strip{grid-template-columns:repeat(2,1fr)}.dashboard,.split{grid-template-columns:1fr}.page-hero h1{font-size:43px}.method-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:767px){body{padding-bottom:76px}.site-container{padding:0 18px}.topbar{padding:12px 0}.brand-text span:first-child{font-size:17px}.brand-text span:last-child{font-size:11px}.page-hero{padding:42px 0}.page-hero h1{font-size:35px}.page-hero p{font-size:16px}.section{padding:48px 0}.section-title{font-size:29px}.metric-strip{margin-top:0;grid-template-columns:1fr 1fr;gap:10px}.metric-box{padding:16px}.metric-box strong{font-size:24px}.panel{padding:22px}.feature-img{height:260px}.method-grid{grid-template-columns:1fr}.cta{display:block;padding:28px 24px}.cta .btn-brand{margin-top:20px;width:100%}.fixed-inner{gap:8px}.fixed-inner p{display:none}.fixed-inner .btn-brand,.fixed-inner .btn-soft{flex:1;padding:10px 8px;font-size:13px}.footer-grid{grid-template-columns:1fr;gap:24px}.footer{padding-bottom:90px}}
    @media(max-width:375px){.metric-strip{grid-template-columns:1fr}.page-hero h1{font-size:32px}}

/* roulang page: category7 */
:root{
      --green:#16a34a;--green-2:#13a36f;--teal:#0ea5a8;--orange:#f59e0b;
      --ink:#17231f;--deep:#0e2f24;--deep-2:#12372a;--muted:#5f6f68;--soft:#87938d;
      --bg:#f7faf6;--bg-2:#eef7f1;--white:#fff;--line:rgba(18,55,42,.12);
      --line-strong:rgba(22,163,74,.28);--shadow:0 18px 45px rgba(18,55,42,.10);
      --shadow-hover:0 24px 60px rgba(18,55,42,.14);--radius-xl:24px;--radius-lg:18px;
      --radius-md:14px;--container:1240px;
      --gradient:linear-gradient(135deg,#16a34a 0%,#13a36f 50%,#0ea5a8 100%);
      --gradient-warm:linear-gradient(135deg,#16a34a 0%,#0ea5a8 55%,#f59e0b 100%);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;background:radial-gradient(circle at 10% 0%,rgba(22,163,74,.08),transparent 34%),linear-gradient(180deg,#fbfdf9,var(--bg) 48%,#fff);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.75;padding-bottom:88px}
    a{color:inherit;text-decoration:none;transition:.2s ease}a:hover{color:var(--green)}
    img{max-width:100%;display:block}button,input{font:inherit}
    .site-container{max-width:var(--container);margin:auto;padding:0 24px}
    .site-header{position:sticky;top:0;z-index:1000;background:rgba(247,250,246,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
    .topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0 12px}
    .brand-logo{display:flex;align-items:center;gap:12px;font-weight:900;color:var(--deep)}
    .brand-mark{width:42px;height:42px;border-radius:15px;background:var(--gradient-warm);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 12px 26px rgba(22,163,74,.22)}
    .brand-text{display:flex;flex-direction:column;line-height:1.15}.brand-text span:first-child{font-size:20px}.brand-text span:last-child{font-size:12px;color:var(--muted);font-weight:700;margin-top:4px}
    .btn-brand,.btn-soft,.btn-outline-brand{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 20px;font-weight:800;border:1px solid transparent;line-height:1.25;transition:.22s ease}
    .btn-brand{background:var(--gradient);color:#fff;box-shadow:0 12px 24px rgba(22,163,74,.22)}.btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px rgba(22,163,74,.28)}
    .btn-soft{background:rgba(22,163,74,.1);color:var(--deep-2);border-color:rgba(22,163,74,.18)}.btn-soft:hover{background:rgba(22,163,74,.17);transform:translateY(-2px)}
    .btn-outline-brand{background:#fff8;border-color:rgba(18,55,42,.18);color:var(--deep-2)}.btn-outline-brand:hover{background:#fff;color:var(--green);transform:translateY(-2px)}
    .navbar-toggler{border:1px solid var(--line);border-radius:14px;padding:8px 10px;background:#fff}
    .segmented-nav{display:flex;gap:8px;align-items:center;overflow-x:auto;padding:8px;background:#ffffffc7;border:1px solid var(--line);border-radius:999px;box-shadow:0 10px 24px rgba(18,55,42,.06);scrollbar-width:none}.segmented-nav::-webkit-scrollbar{display:none}
    .nav-link-chip{flex:0 0 auto;padding:9px 15px;border-radius:999px;color:var(--muted);font-weight:800;font-size:14px;border:1px solid transparent}.nav-link-chip:hover{background:rgba(22,163,74,.1);color:var(--deep-2)}.nav-link-chip.active{background:var(--gradient);color:#fff;box-shadow:0 8px 18px rgba(22,163,74,.2)}
    .section{padding:70px 0}.section-tight{padding:42px 0}.section-title{font-size:36px;line-height:1.25;margin:0;font-weight:900}.section-lead{font-size:17px;color:var(--muted);margin:14px 0 0;max-width:790px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid var(--line-strong);border-radius:999px;background:#ffffffc7;color:var(--deep-2);font-size:14px;font-weight:800}.eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gradient)}
    .badge-metric{display:inline-flex;align-items:center;gap:8px;padding:9px 12px;border-radius:999px;background:linear-gradient(#fff,#fff) padding-box,var(--gradient) border-box;border:1px solid transparent;color:var(--deep-2);font-size:14px;font-weight:700}.badge-metric strong{font-size:18px;color:var(--green);line-height:1}
    .page-hero{position:relative;overflow:hidden;color:#fff;padding:76px 0 68px;background-image:linear-gradient(100deg,rgba(14,47,36,.94),rgba(14,47,36,.68)),url('/assets/images/backpic/back-2.webp');background-size:cover;background-position:center}
    .page-hero h1{font-size:52px;line-height:1.18;font-weight:900;margin:18px 0 16px;max-width:800px}.page-hero p{font-size:18px;color:#e6f4ec;max-width:760px}
    .page-hero .eyebrow{background:#ffffff18;color:#fff;border-color:#ffffff55}.hero-metrics{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}.page-hero .badge-metric{background:#ffffff16;color:#fff;border-color:#ffffff45}.page-hero .badge-metric strong{color:#a7f3d0}
    .crumb{font-size:14px;color:#c7e2d3}.crumb a{color:#fff;text-decoration:underline;text-underline-offset:3px}
    .notice{border-left:5px solid var(--orange);background:#fff9eb;padding:22px 24px;border-radius:0 var(--radius-lg) var(--radius-lg) 0;box-shadow:var(--shadow);color:#55431e}
    .notice strong{color:#9a6500}
    .qa-layout{display:grid;grid-template-columns:280px 1fr;gap:34px;align-items:start}
    .side-card,.content-card,.topic-card,.related-card{background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:var(--radius-xl);box-shadow:var(--shadow)}
    .side-card{padding:22px;position:sticky;top:140px}.side-card h3{font-size:19px;margin:0 0 14px}.side-nav{display:grid;gap:8px}.side-nav a{padding:10px 12px;border-radius:12px;color:var(--muted);font-weight:700}.side-nav a:hover,.side-nav a.active{background:var(--bg-2);color:var(--green)}
    .content-card{padding:30px}.content-card h2{font-size:29px;margin:0 0 12px}.content-card>p{color:var(--muted)}
    .accordion{--bs-accordion-border-color:transparent;--bs-accordion-bg:transparent}.accordion-item{border:1px solid var(--line)!important;border-radius:16px!important;margin:12px 0;overflow:hidden;background:#fff}.accordion-button{font-weight:800;color:var(--deep-2);background:#fff;padding:18px 20px;box-shadow:none!important}.accordion-button:not(.collapsed){background:var(--bg-2);color:var(--green);border-left:4px solid var(--green)}.accordion-body{color:var(--muted);padding:4px 24px 20px;background:var(--bg-2)}
    .topic-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px}.topic-card{overflow:hidden}.topic-card img{width:100%;height:220px;object-fit:cover}.topic-body{padding:24px}.topic-body h3{font-size:22px;margin:0 0 8px}.topic-body p{color:var(--muted);margin:0 0 15px}
    .question-strip{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}.question-strip div{padding:18px;background:var(--bg-2);border-radius:var(--radius-lg);border:1px solid var(--line)}.question-strip strong{display:block;color:var(--deep-2);margin-bottom:5px}.question-strip span{font-size:14px;color:var(--muted)}
    .related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.related-card{padding:20px}.related-card h3{font-size:18px;margin:0 0 8px}.related-card p{font-size:14px;color:var(--muted);margin:0 0 14px}
    .cta-band{background:var(--deep);color:#fff;border-radius:var(--radius-xl);padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:25px;box-shadow:var(--shadow)}.cta-band h2{font-size:30px;margin:0 0 8px}.cta-band p{color:#c6ddd1;margin:0}.cta-band .badge-metric{background:#ffffff12;color:#fff;border-color:#ffffff3d}
    .footer{background:var(--deep);color:#d9ebe1;padding:54px 0 24px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:50px}.footer h2,.footer h3{color:#fff;margin-top:0}.footer h2{font-size:24px}.footer h3{font-size:16px}.footer p{color:#a9c8b8;max-width:470px}.footer-links{display:grid;gap:9px;color:#b8d4c6}.footer-links a:hover,.footer-bottom a:hover{color:#a7f3d0}.footer-bottom{display:flex;flex-wrap:wrap;gap:12px 24px;border-top:1px solid #ffffff1f;margin-top:38px;padding-top:20px;color:#9fc0b0;font-size:13px}
    .bottom-bar{position:fixed;z-index:1100;bottom:0;left:0;right:0;background:rgba(14,47,36,.97);color:#fff;border-top:1px solid #ffffff2b;box-shadow:0 -12px 30px rgba(14,47,36,.2);padding:11px 0}.bottom-inner{display:flex;align-items:center;justify-content:space-between;gap:15px}.bottom-bar small{color:#b8d8c6}.bottom-actions{display:flex;gap:9px}
    .form-control,.form-select{border:1px solid var(--line-strong);border-radius:13px;padding:12px 14px;background:#fff}.form-control:focus,.form-select:focus{border-color:var(--green);box-shadow:0 0 0 4px rgba(22,163,74,.12)}
    .search-box{display:flex;gap:10px;background:#fff;padding:10px;border:1px solid var(--line);border-radius:18px;box-shadow:var(--shadow);max-width:650px}.search-box input{border:0;outline:0;flex:1;padding:7px 10px;min-width:0}
    :focus-visible{outline:3px solid rgba(245,158,11,.45);outline-offset:3px}
    @media(max-width:991px){.page-hero h1{font-size:43px}.qa-layout{grid-template-columns:1fr}.side-card{position:static}.related-grid{grid-template-columns:repeat(2,1fr)}}
    @media(max-width:767px){body{padding-bottom:76px}.site-container{padding:0 17px}.topbar{padding:12px 0}.brand-text span:first-child{font-size:17px}.brand-text span:last-child{font-size:11px}.segmented-wrap{padding-bottom:8px}.segmented-nav{border-radius:17px}.page-hero{padding:56px 0 48px}.page-hero h1{font-size:35px}.page-hero p{font-size:16px}.section{padding:48px 0}.section-title{font-size:28px}.topic-grid,.question-strip{grid-template-columns:1fr}.content-card{padding:22px}.cta-band{display:block;padding:28px 23px}.cta-band .btn-brand{margin-top:18px}.footer-grid{grid-template-columns:1fr;gap:25px}.footer-bottom{display:grid;gap:8px;margin-top:28px}.bottom-inner{justify-content:center}.bottom-copy{display:none}.bottom-actions{width:100%}.bottom-actions a{flex:1;padding:10px 8px;font-size:14px}.related-grid{grid-template-columns:1fr}}

/* roulang page: category5 */
:root{
      --green:#16a34a;--green-2:#13a36f;--teal:#0ea5a8;--orange:#f59e0b;
      --ink:#17231f;--deep:#0e2f24;--deep-2:#12372a;--muted:#5f6f68;--soft:#87938d;
      --bg:#f7faf6;--bg-2:#eef7f1;--white:#fff;--line:rgba(18,55,42,.12);
      --line-strong:rgba(22,163,74,.28);--shadow:0 18px 45px rgba(18,55,42,.10);
      --shadow-hover:0 24px 60px rgba(18,55,42,.14);--radius-xl:24px;--radius-lg:18px;
      --radius-md:14px;--container:1240px;
      --gradient:linear-gradient(135deg,#16a34a 0%,#13a36f 50%,#0ea5a8 100%);
      --gradient-warm:linear-gradient(135deg,#16a34a 0%,#0ea5a8 55%,#f59e0b 100%);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;padding-bottom:88px;color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.75;background:radial-gradient(circle at 8% 0%,rgba(22,163,74,.08),transparent 32%),linear-gradient(180deg,#fbfdf9 0%,var(--bg) 50%,#fff 100%)}
    a{color:inherit;text-decoration:none;transition:.2s ease}
    a:hover{color:var(--green)}
    img{display:block;max-width:100%}
    button,input,select,textarea{font:inherit}
    .site-container{max-width:var(--container);margin:auto;padding:0 24px}
    .site-header{position:sticky;top:0;z-index:1000;background:rgba(247,250,246,.9);backdrop-filter:blur(18px);border-bottom:1px solid var(--line)}
    .topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0 12px}
    .brand-logo{display:flex;align-items:center;gap:12px;font-weight:900;color:var(--deep)}
    .brand-mark{width:42px;height:42px;border-radius:15px;background:var(--gradient-warm);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 12px 26px rgba(22,163,74,.22)}
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-text span:first-child{font-size:20px}.brand-text span:last-child{font-size:12px;color:var(--muted);font-weight:700;margin-top:4px}
    .navbar-toggler{border:1px solid var(--line);border-radius:14px;padding:8px 10px;background:#fff}
    .navbar-toggler:focus{box-shadow:0 0 0 3px rgba(22,163,74,.16)}
    .segmented-nav{display:flex;gap:8px;align-items:center;overflow-x:auto;padding:8px;background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:999px;box-shadow:0 10px 24px rgba(18,55,42,.06);scrollbar-width:none}
    .segmented-nav::-webkit-scrollbar{display:none}
    .nav-link-chip{flex:0 0 auto;padding:9px 15px;border-radius:999px;color:var(--muted);font-weight:800;font-size:14px;border:1px solid transparent}
    .nav-link-chip:hover{background:rgba(22,163,74,.1);color:var(--deep-2)}
    .nav-link-chip.active{background:var(--gradient);color:#fff;box-shadow:0 8px 18px rgba(22,163,74,.2)}
    .btn-brand,.btn-soft,.btn-outline-brand{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 20px;font-weight:800;border:1px solid transparent;transition:.22s ease;line-height:1.3}
    .btn-brand{background:var(--gradient);color:#fff;box-shadow:0 12px 24px rgba(22,163,74,.22)}
    .btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px rgba(22,163,74,.28)}
    .btn-soft{background:rgba(22,163,74,.1);color:var(--deep-2);border-color:rgba(22,163,74,.18)}
    .btn-soft:hover{background:rgba(22,163,74,.17);color:var(--deep-2);transform:translateY(-2px)}
    .btn-outline-brand{background:#fff;border-color:rgba(18,55,42,.18);color:var(--deep-2)}
    .btn-outline-brand:hover{border-color:var(--green);color:var(--green);transform:translateY(-2px)}
    .btn-brand:focus-visible,.btn-soft:focus-visible,.btn-outline-brand:focus-visible,.nav-link-chip:focus-visible,.footer a:focus-visible,.accordion-button:focus-visible,.form-control:focus-visible,.form-select:focus-visible{outline:3px solid rgba(245,158,11,.42);outline-offset:3px;box-shadow:none}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid var(--line-strong);border-radius:999px;background:rgba(255,255,255,.78);color:var(--deep-2);font-size:14px;font-weight:700}
    .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gradient)}
    .badge-metric{display:inline-flex;align-items:center;gap:8px;padding:9px 12px;border-radius:999px;background:linear-gradient(#fff,#fff) padding-box,var(--gradient) border-box;border:1px solid transparent;color:var(--deep-2);font-size:14px;font-weight:700}
    .badge-metric strong{font-size:18px;color:var(--green);line-height:1}
    .hero-inner{position:relative;overflow:hidden;color:#fff;background:linear-gradient(90deg,rgba(14,47,36,.94),rgba(14,47,36,.62)),url('/assets/images/backpic/back-2.webp') center/cover;border-radius:0 0 34px 34px}
    .hero{min-height:490px;display:flex;align-items:center;padding:70px 0 76px}
    .hero h1{font-size:52px;line-height:1.18;font-weight:900;margin:18px 0;color:#fff}
    .hero p{max-width:720px;font-size:18px;color:rgba(255,255,255,.84);margin-bottom:26px}
    .hero .eyebrow{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.3)}
    .hero .badge-metric{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.36)}
    .hero .badge-metric strong{color:#ffd27b}
    .search-panel{margin-top:-38px;position:relative;z-index:4}
    .search-box{display:flex;align-items:center;gap:12px;padding:12px 14px;background:#fff;border:1px solid var(--line);border-radius:20px;box-shadow:var(--shadow)}
    .search-box input{flex:1;border:0;outline:0;min-width:0;color:var(--ink);background:transparent}
    .quick-links{display:flex;gap:10px;flex-wrap:wrap;margin-top:14px}
    .quick-links a{padding:8px 13px;border-radius:999px;background:var(--bg-2);color:var(--deep-2);font-size:14px;font-weight:800}
    .quick-links a:hover{background:#d8f0e0}
    .section{padding:68px 0}.section-tight{padding:42px 0}
    .section-title{font-size:35px;line-height:1.25;font-weight:900;margin:0}
    .section-lead{font-size:17px;color:var(--muted);max-width:790px;margin:13px 0 0}
    .section-head{margin-bottom:28px}
    .panel,.scene-card,.info-card,.form-panel{background:rgba(255,255,255,.86);border:1px solid var(--line);border-radius:var(--radius-xl);box-shadow:var(--shadow)}
    .panel{padding:28px}
    .intro-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:28px;align-items:stretch}
    .intro-image{height:100%;min-height:330px;object-fit:cover;border-radius:20px}
    .copy p{color:var(--muted);font-size:16px;margin:0 0 16px}
    .copy p:last-child{margin-bottom:0}
    .scene-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:22px}
    .scene-card{overflow:hidden;transition:.22s ease}.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
    .scene-card img{width:100%;height:230px;object-fit:cover;transition:.3s ease}.scene-card:hover img{transform:scale(1.03)}
    .scene-card.large img{height:330px}
    .scene-body{padding:22px}.scene-body h3,.info-card h3{font-size:22px;font-weight:900;margin:0 0 8px}.scene-body p,.info-card p{color:var(--muted);margin:0 0 15px}
    .tag{display:inline-block;padding:5px 10px;background:rgba(14,165,168,.1);color:#08787b;border-radius:999px;font-size:13px;font-weight:800;margin-bottom:10px}
    .split-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
    .info-card{padding:22px}.info-card strong{display:block;font-size:28px;color:var(--green);line-height:1.2;margin-bottom:5px}
    .number-list{counter-reset:item;display:grid;gap:14px}
    .number-item{display:grid;grid-template-columns:45px 1fr;gap:14px;padding:17px;border-radius:16px;background:var(--bg-2);border:1px solid transparent}
    .number-item:hover{border-color:var(--line-strong)}
    .number-item:before{counter-increment:item;content:counter(item);width:36px;height:36px;border-radius:12px;display:grid;place-items:center;color:#fff;font-weight:900;background:var(--gradient)}
    .number-item h3{font-size:18px;margin:0 0 3px;font-weight:900}.number-item p{margin:0;color:var(--muted);font-size:15px}
    .dark-section{background:var(--deep);color:#fff}.dark-section .section-title{color:#fff}.dark-section .section-lead{color:rgba(255,255,255,.72)}
    .metric-row{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
    .metric-box{padding:22px;border-radius:18px;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14)}
    .metric-box strong{display:block;color:#ffd27b;font-size:29px;line-height:1.2}.metric-box span{color:rgba(255,255,255,.72);font-size:14px}
    .form-layout{display:grid;grid-template-columns:.78fr 1.22fr;gap:28px;align-items:start}
    .form-panel{padding:26px}.form-label{font-weight:800;color:var(--deep-2);font-size:14px}.form-control,.form-select{border:1px solid var(--line-strong);border-radius:13px;padding:12px 14px;background:#fbfefb}.form-control:focus,.form-select:focus{border-color:var(--green);box-shadow:0 0 0 4px rgba(22,163,74,.1)}
    .privacy-note{font-size:13px;color:var(--soft);margin-top:12px}
    .accordion{display:grid;gap:12px}.accordion-item{border:1px solid var(--line)!important;border-radius:16px!important;overflow:hidden;background:#fff}
    .accordion-button{font-weight:900;color:var(--deep-2);background:#fff;padding:19px 21px}.accordion-button:not(.collapsed){background:var(--bg-2);color:var(--deep-2);box-shadow:inset 4px 0 var(--green)}.accordion-button:after{filter:hue-rotate(80deg)}.accordion-body{color:var(--muted);padding:0 21px 20px;background:var(--bg-2)}
    .cta{padding:30px;border-radius:var(--radius-xl);background:var(--gradient-warm);color:#fff;display:flex;justify-content:space-between;align-items:center;gap:20px;box-shadow:var(--shadow)}
    .cta h2{font-size:28px;margin:0 0 5px;font-weight:900}.cta p{margin:0;color:rgba(255,255,255,.84)}
    .footer{background:var(--deep);color:#dcebe2;padding:55px 0 105px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:45px}.footer h2,.footer h3{color:#fff;font-weight:900}.footer h2{font-size:22px}.footer h3{font-size:16px;margin-bottom:15px}.footer p{color:#a9c0b3;max-width:500px}.footer-links{display:grid;gap:8px;color:#b7ccc0;font-size:14px}.footer-links a:hover,.footer a:hover{color:#ffd27b}.footer-bottom{border-top:1px solid rgba(255,255,255,.14);margin-top:35px;padding-top:20px;display:flex;flex-wrap:wrap;gap:12px 26px;color:#a9c0b3;font-size:13px}
.fixed-cta{position:fixed;z-index:1100;bottom:0;left:0;right:0;min-height:72px;background:rgba(14,47,36,.96);color:#fff;border-top:1px solid rgba(255,255,255,.16);box-shadow:0 -12px 30px rgba(14,47,36,.18)}
    .fixed-inner{max-width:var(--container);margin:auto;padding:10px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px}
    .fixed-inner strong{font-size:16px}.fixed-inner span{font-size:13px;color:#b8d0c2;margin-left:10px}
    .fixed-actions{display:flex;gap:10px}.fixed-actions a{padding:9px 16px;font-size:14px}
    @media(max-width:991px){.hero h1{font-size:44px}.intro-grid,.scene-grid,.form-layout{grid-template-columns:1fr}.metric-row{grid-template-columns:repeat(2,1fr)}.footer-grid{grid-template-columns:1.3fr 1fr}}
    @media(max-width:767px){body{padding-bottom:76px}.site-container{padding:0 17px}.topbar{padding:12px 0}.brand-text span:first-child{font-size:17px}.brand-mark{width:38px;height:38px;border-radius:13px}.segmented-wrap{padding-bottom:10px}.segmented-nav{border-radius:17px}.hero-inner{border-radius:0 0 24px 24px}.hero{min-height:430px;padding:54px 0 58px}.hero h1{font-size:36px}.hero p{font-size:16px}.section{padding:48px 0}.section-title{font-size:28px}.section-lead{font-size:16px}.search-panel{margin-top:-27px}.search-box{padding:9px}.search-box .btn-brand{padding:10px 13px;font-size:14px}.intro-image,.scene-card.large img{min-height:240px;height:240px}.scene-card img{height:205px}.split-list{grid-template-columns:1fr}.metric-row{grid-template-columns:repeat(2,1fr);gap:10px}.metric-box{padding:16px}.metric-box strong{font-size:23px}.cta{display:block;padding:24px}.cta h2{font-size:24px}.cta .btn-brand{margin-top:18px}.footer{padding-bottom:90px}.footer-grid{grid-template-columns:1fr;gap:25px}.footer-bottom{display:grid;gap:8px}.fixed-inner{padding:9px 14px;display:block}.fixed-inner strong{font-size:14px}.fixed-inner span{display:none}.fixed-actions{position:absolute;right:14px;top:11px}.fixed-actions a{padding:8px 11px;font-size:13px}}
    @media(max-width:375px){.brand-text span:last-child{display:none}.hero h1{font-size:32px}.fixed-actions{gap:5px}.fixed-actions a{padding:8px 8px}}

/* roulang page: category5 */
:root{
      --green:#16a34a;--green-2:#13a36f;--teal:#0ea5a8;--orange:#f59e0b;
      --ink:#17231f;--deep:#0e2f24;--deep-2:#12372a;--muted:#5f6f68;--soft:#87938d;
      --bg:#f7faf6;--bg-2:#eef7f1;--white:#fff;--line:rgba(18,55,42,.12);
      --line-strong:rgba(22,163,74,.28);--shadow:0 18px 45px rgba(18,55,42,.10);
      --shadow-hover:0 24px 60px rgba(18,55,42,.14);--radius-xl:24px;--radius-lg:18px;
      --radius-md:14px;--container:1240px;
      --gradient:linear-gradient(135deg,#16a34a 0%,#13a36f 50%,#0ea5a8 100%);
      --gradient-warm:linear-gradient(135deg,#16a34a 0%,#0ea5a8 55%,#f59e0b 100%);
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;padding-bottom:86px;color:var(--ink);background:radial-gradient(circle at 8% 0%,rgba(22,163,74,.08),transparent 32%),linear-gradient(180deg,#fbfdf9 0%,var(--bg) 48%,#fff 100%);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",Arial,sans-serif;line-height:1.75}
    a{color:inherit;text-decoration:none;transition:.2s ease}
    a:hover{color:var(--green)}
    img{max-width:100%;display:block}
    button,input,textarea,select{font:inherit}
    .site-container{max-width:var(--container);margin:auto;padding:0 24px}
    .site-header{position:sticky;top:0;z-index:1000;background:rgba(247,250,246,.9);backdrop-filter:blur(18px);border-bottom:1px solid rgba(18,55,42,.1)}
    .topbar{display:flex;align-items:center;justify-content:space-between;gap:18px;padding:16px 0 12px}
    .brand-logo{display:flex;align-items:center;gap:12px;font-weight:900;color:var(--deep)}
    .brand-mark{width:42px;height:42px;border-radius:15px;background:var(--gradient-warm);display:grid;place-items:center;color:#fff;font-weight:900;box-shadow:0 12px 26px rgba(22,163,74,.22)}
    .brand-text{display:flex;flex-direction:column;line-height:1.15}
    .brand-text span:first-child{font-size:20px}.brand-text span:last-child{font-size:12px;color:var(--muted);font-weight:700;margin-top:4px}
    .navbar-toggler{border:1px solid var(--line);border-radius:14px;padding:8px 10px;background:#fff}
    .navbar-toggler:focus{box-shadow:0 0 0 3px rgba(22,163,74,.16)}
    .segmented-nav{display:flex;gap:8px;align-items:center;overflow-x:auto;padding:8px;background:rgba(255,255,255,.78);border:1px solid var(--line);border-radius:999px;box-shadow:0 10px 24px rgba(18,55,42,.06);scrollbar-width:none}
    .segmented-nav::-webkit-scrollbar{display:none}
    .nav-link-chip{flex:0 0 auto;padding:9px 15px;border-radius:999px;color:var(--muted);font-weight:800;font-size:14px;border:1px solid transparent}
    .nav-link-chip:hover{background:rgba(22,163,74,.1);color:var(--deep-2)}
    .nav-link-chip.active{background:var(--gradient);color:#fff;box-shadow:0 8px 18px rgba(22,163,74,.2)}
    .btn-brand,.btn-soft,.btn-outline-brand{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;padding:12px 20px;font-weight:800;border:1px solid transparent;transition:.22s ease;line-height:1.25}
    .btn-brand{background:var(--gradient);color:#fff;box-shadow:0 12px 24px rgba(22,163,74,.22)}
    .btn-brand:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 34px rgba(22,163,74,.28)}
    .btn-soft{background:rgba(22,163,74,.1);color:var(--deep-2);border-color:rgba(22,163,74,.18)}
    .btn-soft:hover{background:rgba(22,163,74,.17);color:var(--deep-2);transform:translateY(-2px)}
    .btn-outline-brand{background:rgba(255,255,255,.72);border-color:rgba(18,55,42,.18);color:var(--deep-2)}
    .btn-outline-brand:hover{background:#fff;border-color:rgba(22,163,74,.36);color:var(--green);transform:translateY(-2px)}
    .btn-brand:focus-visible,.btn-soft:focus-visible,.btn-outline-brand:focus-visible,.nav-link-chip:focus-visible,.footer a:focus-visible,.accordion-button:focus-visible,.form-control:focus-visible,.form-select:focus-visible{outline:3px solid rgba(245,158,11,.42);outline-offset:3px;box-shadow:none}
    .badge-metric{display:inline-flex;align-items:center;gap:8px;padding:9px 12px;border-radius:999px;background:linear-gradient(#fff,#fff) padding-box,var(--gradient) border-box;border:1px solid transparent;color:var(--deep-2);font-size:14px;font-weight:700}
    .badge-metric strong{font-size:18px;color:var(--green);line-height:1}
    .section{padding:66px 0}.section-tight{padding:42px 0}
    .section-title{font-size:36px;line-height:1.25;margin:0;font-weight:800}.section-lead{font-size:17px;color:var(--muted);margin:14px 0 0;max-width:790px}
    .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:7px 12px;border:1px solid var(--line-strong);border-radius:999px;background:rgba(255,255,255,.78);color:var(--deep-2);font-size:14px;font-weight:700}
    .eyebrow:before{content:"";width:8px;height:8px;border-radius:50%;background:var(--gradient)}
    .inner-hero{position:relative;overflow:hidden;padding:76px 0 70px;color:#fff;background-image:linear-gradient(90deg,rgba(14,47,36,.94),rgba(14,47,36,.68) 55%,rgba(14,47,36,.3)),url('/assets/images/backpic/back-3.webp');background-position:center;background-size:cover}
    .inner-hero h1{font-size:52px;line-height:1.18;margin:18px 0 16px;font-weight:900}
    .inner-hero p{max-width:760px;font-size:18px;color:rgba(255,255,255,.86)}
    .crumbs{font-size:14px;color:rgba(255,255,255,.72)}.crumbs a{text-decoration:underline;text-underline-offset:4px}
    .hero-search{display:flex;max-width:690px;margin-top:26px;background:#fff;border-radius:999px;padding:6px;box-shadow:0 18px 36px rgba(0,0,0,.16)}
    .hero-search input{flex:1;border:0;outline:0;padding:10px 16px;color:var(--ink);background:transparent;min-width:0}
    .hero-search button{border:0}
    .metric-row{display:flex;gap:10px;flex-wrap:wrap;margin-top:25px}
    .metric-row .badge-metric{background:rgba(255,255,255,.94)}
    .surface{background:rgba(255,255,255,.82);border:1px solid var(--line);border-radius:var(--radius-xl);box-shadow:var(--shadow)}
    .intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:26px;align-items:stretch}
    .intro-copy{padding:34px}.intro-copy p{color:var(--muted);font-size:16px}
    .image-card{overflow:hidden;min-height:360px;position:relative}.image-card img{width:100%;height:100%;object-fit:cover;min-height:360px}
    .image-caption{position:absolute;left:20px;right:20px;bottom:18px;padding:14px 16px;background:rgba(14,47,36,.83);color:#fff;border-radius:15px;font-weight:700}
    .scene-grid{display:grid;grid-template-columns:1.3fr .7fr;gap:22px}
    .scene-main{padding:30px;background:linear-gradient(145deg,#e7f7ed,#fff);border-radius:var(--radius-xl);border:1px solid var(--line)}
    .scene-main h3,.scene-card h3{font-size:22px;margin:0 0 10px;font-weight:800}
    .scene-main p,.scene-card p{color:var(--muted)}
    .scene-side{display:grid;gap:22px}.scene-card{padding:26px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);box-shadow:0 12px 30px rgba(18,55,42,.06);transition:.22s ease}
    .scene-card:hover,.feature-panel:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--line-strong)}
    .tag{display:inline-flex;padding:5px 10px;border-radius:999px;background:rgba(14,165,168,.1);color:#08787b;font-size:13px;font-weight:800;margin-bottom:13px}
    .number{width:42px;height:42px;border-radius:14px;display:grid;place-items:center;background:var(--gradient);color:#fff;font-size:18px;font-weight:900;margin-bottom:16px}
    .feature-panel{padding:30px;border-radius:var(--radius-xl);background:var(--deep);color:#fff;transition:.22s ease;min-height:100%}
    .feature-panel p{color:rgba(255,255,255,.72)}.feature-panel h3{font-size:25px}
    .check-list{list-style:none;padding:0;margin:22px 0}.check-list li{padding:11px 0 11px 28px;border-bottom:1px solid rgba(255,255,255,.1);position:relative;color:rgba(255,255,255,.85)}
    .check-list li:before{content:"✓";position:absolute;left:0;color:#8ee1a8;font-weight:900}
    .split{display:grid;grid-template-columns:.8fr 1.2fr;gap:28px;align-items:center}
    .split img{width:100%;height:390px;object-fit:cover;border-radius:var(--radius-xl);box-shadow:var(--shadow)}
    .prose h2{font-size:30px;margin:0 0 15px}.prose p{color:var(--muted);font-size:16px;margin:0 0 15px}
    .stat-band{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;padding:20px;background:var(--gradient);border-radius:var(--radius-xl);color:#fff}
    .stat-band div{padding:14px 18px;border-right:1px solid rgba(255,255,255,.25)}.stat-band div:last-child{border:0}
    .stat-band strong{display:block;font-size:27px;line-height:1.2}.stat-band span{font-size:14px;color:rgba(255,255,255,.8)}
    .scene-list{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.scene-list article{padding:22px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg)}
    .scene-list article h3{font-size:20px;margin:12px 0 6px}.scene-list article p{color:var(--muted);font-size:15px;margin:0}
    .consult-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:28px;align-items:start}
    .form-box{padding:30px;background:#fff;border:1px solid var(--line);border-radius:var(--radius-xl);box-shadow:var(--shadow)}
    .form-label{font-weight:800;color:var(--deep-2);font-size:14px}.form-control,.form-select{border:1px solid var(--line-strong);border-radius:13px;padding:12px 14px;background:#fbfefb}.form-control:focus,.form-select:focus{border-color:var(--green);box-shadow:0 0 0 4px rgba(22,163,74,.1)}
    .privacy-note{font-size:13px;color:var(--soft);margin-top:14px}
    .accordion{--bs-accordion-border-color:var(--line);--bs-accordion-btn-focus-box-shadow:none}
    .accordion-item{border:1px solid var(--line)!important;border-radius:16px!important;overflow:hidden;margin-bottom:12px;background:#fff}
    .accordion-button{font-weight:800;color:var(--deep-2);background:#fff;padding:19px 22px}.accordion-button:not(.collapsed){color:var(--deep-2);background:#eff9f1;box-shadow:inset 5px 0 var(--green)}
    .accordion-body{color:var(--muted);padding:0 22px 20px;background:#eff9f1}
    .cta{padding:38px 42px;border-radius:var(--radius-xl);background:linear-gradient(120deg,var(--deep),#15583d);color:#fff;display:flex;align-items:center;justify-content:space-between;gap:25px}
    .cta h2{font-size:30px;margin:0 0 8px}.cta p{margin:0;color:rgba(255,255,255,.72)}
    .footer{background:var(--deep);color:#dcebe1;padding:56px 0 22px}.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:45px}.footer h2{font-size:22px;color:#fff}.footer h3{font-size:16px;color:#fff;margin-bottom:15px}.footer p{color:#a9c2b3;max-width:520px;font-size:14px}.footer-links{display:grid;gap:8px;color:#a9c2b3;font-size:14px}.footer-links a:hover,.footer a:hover{color:#ffd27a}.footer-bottom{border-top:1px solid rgba(255,255,255,.13);margin-top:38px;padding-top:18px;display:flex;gap:15px;justify-content:space-between;flex-wrap:wrap;color:#91ad9e;font-size:12px}
    .fixed-bar{position:fixed;z-index:999;bottom:0;left:0;right:0;min-height:72px;background:rgba(14,47,36,.97);color:#fff;border-top:1px solid rgba(255,255,255,.12);box-shadow:0 -12px 30px rgba(18,55,42,.16)}
    .fixed-inner{min-height:72px;display:flex;align-items:center;justify-content:space-between;gap:18px}.fixed-copy strong{display:block;font-size:16px}.fixed-copy span{font-size:13px;color:#afd0ba}.fixed-actions{display:flex;gap:10px}.fixed-actions .btn-soft{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.24)}
    @media(max-width:991px){.inner-hero h1{font-size:43px}.intro-grid,.scene-grid,.split,.consult-grid{grid-template-columns:1fr}.scene-side{grid-template-columns:repeat(2,1fr)}.stat-band{grid-template-columns:repeat(2,1fr)}.stat-band div:nth-child(2){border:0}.footer-grid{grid-template-columns:1fr 1fr}}
    @media(max-width:767px){body{padding-bottom:78px}.site-container{padding:0 17px}.topbar{padding:12px 0 10px}.brand-text span:first-child{font-size:17px}.brand-text span:last-child{font-size:11px}.segmented-wrap{padding-bottom:8px}.segmented-nav{border-radius:18px}.inner-hero{padding:52px 0 50px}.inner-hero h1{font-size:35px}.inner-hero p{font-size:16px}.hero-search{border-radius:18px;display:block;background:rgba(255,255,255,.96)}.hero-search input{width:100%;padding:12px}.hero-search button{width:100%;border-radius:999px}.section{padding:48px 0}.section-title{font-size:28px}.intro-copy{padding:24px}.image-card,.image-card img{min-height:270px}.scene-side{grid-template-columns:1fr}.split img{height:280px}.scene-list{grid-template-columns:1fr}.stat-band{grid-template-columns:1fr 1fr;padding:12px}.stat-band div{border-right:0;border-bottom:1px solid rgba(255,255,255,.2)}.stat-band strong{font-size:23px}.form-box{padding:23px}.cta{padding:28px 22px;display:block}.cta .btn-brand{margin-top:20px}.footer{padding-top:42px}.footer-grid{grid-template-columns:1fr;gap:26px}.footer-bottom{display:grid;gap:8px}.fixed-inner{min-height:72px;gap:8px}.fixed-copy{display:none}.fixed-actions{width:100%}.fixed-actions a{flex:1;padding:11px 8px;font-size:14px}}
    @media(max-width:375px){.brand-mark{width:37px;height:37px}.brand-text span:first-child{font-size:15px}.btn-brand,.btn-soft,.btn-outline-brand{padding:10px 14px;font-size:14px}}