/* roulang page: index */
:root{
    --ink:#14202c;
    --ink-2:#3c4a56;
    --muted:#6d7c88;
    --line:#e2e8e5;
    --line-strong:#cfdad5;
    --bg:#f5f7f4;
    --surface:#ffffff;
    --brand:#14655a;
    --brand-dark:#0d4b43;
    --brand-soft:#e6f1ee;
    --gold:#b8862f;
    --gold-soft:#fbf3e2;
    --radius-lg:20px;
    --radius:14px;
    --radius-sm:10px;
    --shadow-sm:0 1px 2px rgba(20,32,44,.05),0 6px 16px rgba(20,32,44,.05);
    --shadow-md:0 12px 28px rgba(20,32,44,.10);
    --shadow-lg:0 22px 48px rgba(20,32,44,.16);
    --max:1180px;
  }
  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--ink);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    font-size:15px;
    line-height:1.78;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{margin:0;line-height:1.32;font-weight:700;letter-spacing:-.2px}
  p{margin:0}
  ul,ol{margin:0;padding:0;list-style:none}
  a{color:inherit;text-decoration:none}
  img{display:block;max-width:100%}
  button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
  input,select,textarea{font:inherit;color:inherit}
  :focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

  .container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}

  /* ---------- Header / Nav ---------- */
  .site-header{
    position:sticky;top:0;z-index:80;
    background:rgba(255,255,255,.94);
    backdrop-filter:saturate(1.5) blur(12px);
    border-bottom:1px solid var(--line);
    transition:box-shadow .25s ease;
  }
  .site-header.is-scrolled{box-shadow:0 8px 24px rgba(20,32,44,.10)}
  .nav-wrap{
    max-width:var(--max);margin:0 auto;padding:0 20px;
    height:68px;display:flex;align-items:center;gap:22px;
  }
  .brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
  .brand__mark{
    width:38px;height:38px;border-radius:11px;
    display:flex;align-items:center;justify-content:center;
    background:linear-gradient(140deg,var(--brand) 0%,var(--brand-dark) 100%);
    color:#fff;font-weight:800;font-size:18px;letter-spacing:0;
    box-shadow:0 6px 14px rgba(20,101,90,.28);
  }
  .brand__text strong{display:block;font-size:16px;line-height:1.2;letter-spacing:.2px}
  .brand__text small{display:block;font-size:11.5px;color:var(--muted);letter-spacing:1.6px;line-height:1.5}
  .nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
  .nav-item{position:relative}
  .nav-link{
    display:inline-flex;align-items:center;gap:6px;
    padding:9px 13px;border-radius:9px;
    font-size:14.5px;color:var(--ink-2);font-weight:500;
    transition:background .18s ease,color .18s ease;
    white-space:nowrap;
  }
  .nav-link:hover{background:var(--brand-soft);color:var(--brand-dark)}
  .nav-link.is-active{color:var(--brand-dark);font-weight:700;background:var(--brand-soft)}
  .nav-actions{display:flex;align-items:center;gap:9px;flex:0 0 auto}
  .caret{width:8px;height:8px;border-right:2px solid currentColor;border-bottom:2px solid currentColor;transform:rotate(45deg) translateY(-2px);opacity:.6}
  .mega{
    position:absolute;top:calc(100% + 12px);right:0;width:520px;
    background:#fff;border:1px solid var(--line);border-radius:16px;
    box-shadow:var(--shadow-lg);padding:18px;
    display:grid;grid-template-columns:1fr 1fr;gap:12px;
    opacity:0;visibility:hidden;transform:translateY(-6px);
    transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
  }
  .nav-item.has-mega:hover .mega,
  .nav-item.has-mega:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
  .mega__card{
    display:block;padding:13px 14px;border-radius:11px;background:#f7faf8;
    border:1px solid transparent;transition:border-color .2s ease,background .2s ease,transform .2s ease;
  }
  .mega__card:hover{border-color:var(--line-strong);background:#fff;transform:translateY(-2px)}
  .mega__card b{display:block;font-size:14px;color:var(--brand-dark);margin-bottom:4px}
  .mega__card span{font-size:12.5px;color:var(--muted);line-height:1.6}
  .nav-toggle{
    display:none;width:42px;height:42px;border-radius:10px;
    border:1px solid var(--line);align-items:center;justify-content:center;
    background:#fff;
  }
  .nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
  .nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
  }
  .nav-toggle span::before{top:-6px}
  .nav-toggle span::after{top:6px}
  .mobile-menu{display:none;border-top:1px solid var(--line);background:#fff;padding:10px 20px 18px}
  .mobile-menu.is-open{display:block}
  .mobile-menu a{
    display:flex;align-items:center;justify-content:space-between;
    padding:13px 4px;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink-2);
  }
  .mobile-menu a:last-child{border-bottom:0}
  .mobile-menu a.is-active{color:var(--brand-dark);font-weight:700}

  /* ---------- Buttons ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:7px;
    padding:11px 20px;border-radius:9px;font-size:14.5px;font-weight:600;
    transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
    white-space:nowrap;
  }
  .btn--primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(20,101,90,.26)}
  .btn--primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(20,101,90,.32)}
  .btn--primary:active{transform:translateY(0);box-shadow:0 6px 12px rgba(20,101,90,.24)}
  .btn--outline{border:1.5px solid rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.06)}
  .btn--outline:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
  .btn--ghost{border:1.5px solid var(--line-strong);color:var(--ink-2);background:#fff}
  .btn--ghost:hover{border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px)}
  .btn--sm{padding:8px 15px;font-size:13.5px}

  /* ---------- Hero ---------- */
  .hero{padding:26px 0 0}
  .hero-card{
    position:relative;overflow:hidden;border-radius:var(--radius-lg);
    background:#0d2a25;color:#fff;box-shadow:var(--shadow-lg);
    border:1px solid rgba(20,32,44,.08);
  }
  .hero-card__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.40;filter:saturate(.85)}
  .hero-card::after{
    content:"";position:absolute;inset:0;z-index:1;
    background:linear-gradient(118deg,rgba(9,30,26,.94) 0%,rgba(9,30,26,.80) 46%,rgba(9,30,26,.46) 100%);
  }
  .hero-card__inner{position:relative;z-index:2;padding:38px 40px 42px;max-width:880px}
  .hero-profile{display:flex;align-items:center;gap:14px;margin-bottom:22px}
  .avatar{
    width:62px;height:62px;border-radius:50%;flex:0 0 auto;
    display:flex;align-items:center;justify-content:center;
    font-size:26px;font-weight:800;letter-spacing:0;
    background:linear-gradient(140deg,#1d8b7b,#0d4b43);
    border:2px solid rgba(255,255,255,.5);
    box-shadow:0 10px 22px rgba(0,0,0,.3);
  }
  .hero-profile__name{font-size:17px;font-weight:700;display:flex;align-items:center;gap:9px;flex-wrap:wrap}
  .verified{
    font-size:11.5px;font-weight:600;padding:3px 9px;border-radius:20px;
    background:rgba(184,134,47,.22);color:#f2d79c;border:1px solid rgba(242,215,156,.4);
  }
  .hero-profile__meta{font-size:13px;color:rgba(255,255,255,.72);margin-top:3px}
  .hero-title{
    font-size:clamp(27px,4vw,40px);letter-spacing:-.5px;line-height:1.26;
    font-weight:800;margin-bottom:14px;
  }
  .hero-desc{font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.86);max-width:720px}
  .hero-badges{
    display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:10px;
    margin:26px 0 24px;max-width:700px;
  }
  .hero-badge{
    background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);
    border-radius:12px;padding:12px 14px;
  }
  .hero-badge b{display:block;font-size:20px;font-weight:800;color:#a9e8d5;line-height:1.2}
  .hero-badge span{font-size:12px;color:rgba(255,255,255,.72);letter-spacing:.2px}
  .hero-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center}
  .hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
  .hero-tags span{
    font-size:12.5px;padding:5px 12px;border-radius:20px;
    background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);
    color:rgba(255,255,255,.86);
  }

  /* ---------- Section base ---------- */
  .section{padding:64px 0}
  .section--white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
  .section--tint{background:#eef3f0}
  .section-head{max-width:800px;margin-bottom:34px}
  .eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    font-size:12.5px;font-weight:700;letter-spacing:1.4px;
    color:var(--brand);text-transform:uppercase;margin-bottom:12px;
  }
  .eyebrow::before{content:"";width:22px;height:2px;background:var(--brand);border-radius:2px}
  .section-title{font-size:clamp(22px,2.6vw,27px);color:var(--ink)}
  .section-desc{margin-top:12px;color:var(--ink-2);font-size:15px;max-width:760px}
  .section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;flex-wrap:wrap}

  /* ---------- Grid & Cards ---------- */
  .grid{display:grid;gap:18px}
  .grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
  .grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
  .grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
  .card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
    padding:22px;box-shadow:var(--shadow-sm);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
    display:flex;flex-direction:column;gap:10px;
  }
  .card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c8dcd5}
  .card__index{
    font-size:12.5px;font-weight:800;letter-spacing:2px;color:var(--gold);
  }
  .card__title{font-size:16.5px;color:var(--ink)}
  .card__desc{font-size:14px;color:var(--ink-2);line-height:1.8}
  .card__foot{margin-top:auto;display:flex;flex-wrap:wrap;gap:7px;padding-top:6px}
  .tag{
    display:inline-block;font-size:12px;padding:3px 10px;border-radius:20px;
    background:var(--brand-soft);color:var(--brand-dark);font-weight:600;
  }
  .tag--gold{background:var(--gold-soft);color:#8a6318}
  .tag--line{background:#f4f7f5;color:var(--muted);border:1px solid var(--line)}

  /* ---------- Capability split ---------- */
  .split{display:grid;grid-template-columns:280px 1fr;gap:34px;align-items:start}
  .split__aside{position:sticky;top:96px}
  .aside-title{font-size:22px;line-height:1.4}
  .aside-text{margin-top:12px;font-size:14px;color:var(--ink-2)}
  .aside-list{margin-top:18px;display:flex;flex-direction:column;gap:9px}
  .aside-list li{
    font-size:13.5px;color:var(--ink-2);padding-left:16px;position:relative;
  }
  .aside-list li::before{
    content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;
    background:var(--brand);
  }

  /* ---------- Scene band ---------- */
  .band{display:grid;grid-template-columns:1.05fr 1fr;gap:36px;align-items:center}
  .band__media{position:relative;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md);border:1px solid var(--line)}
  .band__media img{width:100%;height:100%;aspect-ratio:16/10;object-fit:cover}
  .band__media figcaption{
    position:absolute;left:0;right:0;bottom:0;padding:14px 18px;
    background:linear-gradient(180deg,rgba(10,26,23,0) 0%,rgba(10,26,23,.82) 100%);
    color:#fff;font-size:13px;
  }
  .band__body h3{font-size:23px;margin-bottom:12px}
  .band__body p{color:var(--ink-2);font-size:14.5px}
  .step-list{margin-top:20px;display:flex;flex-direction:column;gap:14px}
  .step-list li{display:flex;gap:13px;align-items:flex-start}
  .step-num{
    flex:0 0 auto;width:28px;height:28px;border-radius:9px;
    display:flex;align-items:center;justify-content:center;
    background:var(--brand-soft);color:var(--brand-dark);font-weight:800;font-size:13px;
  }
  .step-list b{display:block;font-size:14.5px;margin-bottom:2px}
  .step-list span{font-size:13.5px;color:var(--ink-2);line-height:1.7}

  /* ---------- Matrix ---------- */
  .matrix{display:flex;flex-direction:column;gap:12px}
  .matrix-row{
    display:grid;grid-template-columns:180px 1fr 200px;gap:20px;align-items:center;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:18px 22px;box-shadow:var(--shadow-sm);
    transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  }
  .matrix-row:hover{border-color:#c8dcd5;transform:translateX(3px);box-shadow:var(--shadow-md)}
  .matrix-row__name{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px}
  .matrix-dot{width:9px;height:9px;border-radius:50%;background:var(--brand)}
  .matrix-row__desc{font-size:13.8px;color:var(--ink-2)}
  .matrix-row__tags{display:flex;gap:7px;flex-wrap:wrap;justify-content:flex-end}

  /* ---------- Trust wall ---------- */
  .trust{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}
  .trust-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:20px;display:flex;gap:13px;align-items:flex-start;
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .trust-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:#c8dcd5}
  .trust-icon{
    flex:0 0 auto;width:32px;height:32px;border-radius:9px;
    background:var(--brand-soft);display:flex;align-items:center;justify-content:center;
  }
  .trust-item b{display:block;font-size:14.5px;margin-bottom:4px}
  .trust-item span{font-size:13px;color:var(--ink-2);line-height:1.7}

  /* ---------- Flow ---------- */
  .flow{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:14px;counter-reset:flow}
  .flow-step{
    position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:22px 18px;box-shadow:var(--shadow-sm);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .flow-step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c8dcd5}
  .flow-step__no{
    font-size:12px;font-weight:800;letter-spacing:2px;color:var(--gold);margin-bottom:10px;
  }
  .flow-step b{display:block;font-size:15px;margin-bottom:6px}
  .flow-step p{font-size:13.2px;color:var(--ink-2);line-height:1.72}

  /* ---------- Cases ---------- */
  .cases{display:grid;grid-template-columns:1.15fr 1fr;gap:18px}
  .case-main{
    background:linear-gradient(150deg,#123f38,#0d201c);color:#fff;
    border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow-md);
    display:flex;flex-direction:column;gap:14px;
  }
  .case-main__quote{font-size:17px;line-height:1.72;font-weight:600}
  .case-main__meta{font-size:13px;color:rgba(255,255,255,.7);margin-top:auto}
  .case-side{display:grid;gap:18px}
  .case-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:20px;box-shadow:var(--shadow-sm);
    transition:transform .2s ease,box-shadow .2s ease;
  }
  .case-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
  .case-item p{font-size:14px;color:var(--ink-2)}
  .case-item__who{margin-top:12px;font-size:12.5px;color:var(--muted)}

  /* ---------- Metrics ---------- */
  .metrics{
    background:linear-gradient(135deg,#0f2f29,#174f44);
    border-radius:var(--radius-lg);padding:36px;color:#fff;
    box-shadow:var(--shadow-md);
  }
  .metrics-head{max-width:620px;margin-bottom:26px}
  .metrics-head h3{font-size:22px}
  .metrics-head p{font-size:14px;color:rgba(255,255,255,.75);margin-top:8px}
  .metrics-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:18px}
  .metric{border-left:2px solid rgba(169,232,213,.4);padding-left:16px}
  .metric b{display:block;font-size:32px;font-weight:800;color:#a9e8d5;line-height:1.1}
  .metric span{font-size:12.8px;color:rgba(255,255,255,.78);display:block;margin-top:6px}

  /* ---------- Channels ---------- */
  .channel-card{
    position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:24px;box-shadow:var(--shadow-sm);overflow:hidden;
    display:flex;flex-direction:column;gap:10px;
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .channel-card::before{content:"";position:absolute;left:0;top:0;width:100%;height:3px;background:var(--brand);opacity:.85}
  .channel-card:nth-child(2)::before{background:var(--gold)}
  .channel-card:nth-child(3)::before{background:#3f7d9e}
  .channel-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#c8dcd5}
  .channel-card h3{font-size:17px}
  .channel-card p{font-size:13.8px;color:var(--ink-2)}
  .channel-card .linkish{margin-top:auto;font-size:13.5px;font-weight:700;color:var(--brand-dark);display:inline-flex;align-items:center;gap:6px}
  .channel-card .linkish::after{content:"→";transition:transform .2s ease}
  .channel-card:hover .linkish::after{transform:translateX(4px)}

  /* ---------- Myths ---------- */
  .myth-list{display:grid;gap:14px}
  .myth{
    display:grid;grid-template-columns:1fr 1fr;gap:0;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    overflow:hidden;box-shadow:var(--shadow-sm);
  }
  .myth__wrong{background:#fbf5f3;padding:20px 22px;border-right:1px solid var(--line)}
  .myth__right{padding:20px 22px}
  .myth__label{font-size:11.5px;font-weight:800;letter-spacing:1.6px;color:#a4652f;margin-bottom:7px}
  .myth__right .myth__label{color:var(--brand)}
  .myth p{font-size:14px;color:var(--ink-2)}

  /* ---------- Steps three ---------- */
  .trio{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px}
  .trio-item{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:24px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease;
  }
  .trio-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
  .trio-item__no{
    width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
    background:var(--brand);color:#fff;font-weight:800;font-size:15px;margin-bottom:14px;
  }
  .trio-item h3{font-size:16px;margin-bottom:8px}
  .trio-item p{font-size:13.8px;color:var(--ink-2)}

  /* ---------- Audience ---------- */
  .audience{display:grid;grid-template-columns:1fr 1fr;gap:18px}
  .audience-col{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:26px;box-shadow:var(--shadow-sm);
  }
  .audience-col h3{font-size:17px;margin-bottom:14px;display:flex;align-items:center;gap:9px}
  .dot-good,.dot-neutral{width:9px;height:9px;border-radius:50%;display:inline-block}
  .dot-good{background:var(--brand)}
  .dot-neutral{background:#b0b8bd}
  .audience-col li{
    font-size:14px;color:var(--ink-2);padding:10px 0 10px 18px;
    border-bottom:1px dashed var(--line);position:relative;
  }
  .audience-col li:last-child{border-bottom:0}
  .audience-col li::before{
    content:"";position:absolute;left:0;top:19px;width:6px;height:6px;border-radius:50%;background:var(--line-strong);
  }
  .audience-col--good li::before{background:var(--brand)}

  /* ---------- QA ---------- */
  .qa-grid{display:grid;grid-template-columns:1fr 1fr;gap:16px}
  .qa{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px;
    box-shadow:var(--shadow-sm);transition:border-color .2s ease,box-shadow .2s ease;
  }
  .qa:hover{border-color:#c8dcd5;box-shadow:var(--shadow-md)}
  .qa__q{font-size:15px;font-weight:700;color:var(--brand-dark);display:flex;gap:9px;align-items:flex-start}
  .qa__q i{
    flex:0 0 auto;font-style:normal;width:22px;height:22px;border-radius:6px;
    background:var(--brand-soft);color:var(--brand-dark);font-size:12px;font-weight:800;
    display:flex;align-items:center;justify-content:center;margin-top:2px;
  }
  .qa__a{margin-top:10px;font-size:13.8px;color:var(--ink-2);line-height:1.8;padding-left:31px}

  /* ---------- News ---------- */
  .news-layout{display:grid;grid-template-columns:1.65fr 1fr;gap:26px;align-items:start}
  .news-list{display:grid;gap:12px}
  .news-item{
    display:block;background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:19px 22px;box-shadow:var(--shadow-sm);
    transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#c8dcd5}
  .news-item__meta{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap}
  .news-item__date{font-size:12px;color:var(--muted)}
  .news-item__title{font-size:15.5px;margin-bottom:6px}
  .news-item:hover .news-item__title{color:var(--brand-dark)}
  .news-item__desc{font-size:13.5px;color:var(--ink-2);line-height:1.7}
  .side-panel{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius);
    padding:22px;box-shadow:var(--shadow-sm);
  }
  .side-panel h3{font-size:15.5px;margin-bottom:14px;padding-bottom:12px;border-bottom:1px solid var(--line)}
  .side-list{display:grid;gap:12px}
  .side-item{
    display:block;padding:11px 0;border-bottom:1px dashed var(--line);
    transition:color .2s ease;
  }
  .side-item:last-child{border-bottom:0;padding-bottom:0}
  .side-item:hover{color:var(--brand-dark)}
  .side-item b{display:block;font-size:13.8px;font-weight:600;line-height:1.6}
  .side-item span{font-size:12px;color:var(--muted)}
  .empty-note{
    background:#fff;border:1px dashed var(--line-strong);border-radius:var(--radius);
    padding:28px;text-align:center;color:var(--muted);font-size:14px;
  }

  /* ---------- Form ---------- */
  .inquiry{
    display:grid;grid-template-columns:1fr 1.05fr;gap:34px;align-items:start;
  }
  .inquiry__info h2{font-size:clamp(22px,2.6vw,27px);margin-bottom:12px}
  .inquiry__info p{color:var(--ink-2);font-size:14.5px}
  .inquiry-points{margin-top:20px;display:grid;gap:11px}
  .inquiry-points li{
    font-size:13.8px;color:var(--ink-2);display:flex;gap:10px;align-items:flex-start;
  }
  .inquiry-points li::before{
    content:"";flex:0 0 auto;width:16px;height:16px;border-radius:5px;margin-top:4px;
    background:var(--brand-soft);
    box-shadow:inset 0 0 0 2px var(--brand);
  }
  .form-card{
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
    padding:28px;box-shadow:var(--shadow-md);
  }
  .field{margin-bottom:16px}
  .field label{display:block;font-size:13px;font-weight:700;margin-bottom:7px;color:var(--ink-2)}
  .field input,.field select,.field textarea{
    width:100%;border:1px solid var(--line-strong);border-radius:10px;
    padding:11px 13px;font-size:14px;background:#fcfdfc;
    transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
  }
  .field input:hover,.field select:hover,.field textarea:hover{border-color:#bccdc7}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--brand);background:#fff;
    box-shadow:0 0 0 3px rgba(20,101,90,.14);
  }
  .field textarea{min-height:108px;resize:vertical}
  .field-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
  .form-note{font-size:12.5px;color:var(--muted);margin-top:12px;line-height:1.7}
  .form-msg{
    display:none;margin-top:14px;padding:11px 14px;border-radius:10px;
    background:var(--brand-soft);color:var(--brand-dark);font-size:13.5px;font-weight:600;
  }
  .form-msg.is-show{display:block}

  /* ---------- Footer ---------- */
  .site-footer{background:#0e211d;color:#c6d5d0;padding:52px 0 0;margin-top:0}
  .footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.1)}
  .footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
  .footer-brand .brand__mark{box-shadow:none;background:linear-gradient(140deg,#1d8b7b,#0d4b43)}
  .footer-brand strong{color:#fff;font-size:16px}
  .footer-about{font-size:13.5px;color:rgba(255,255,255,.68);max-width:330px;line-height:1.8}
  .footer-col h4{color:#fff;font-size:14.5px;margin-bottom:14px;letter-spacing:.4px}
  .footer-col li{margin-bottom:9px}
  .footer-col a{font-size:13.5px;color:rgba(255,255,255,.68);transition:color .2s ease}
  .footer-col a:hover{color:#8fe0c8}
  .footer-bottom{
    display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
    padding:20px 0 26px;font-size:12.5px;color:rgba(255,255,255,.5);
  }
  .footer-bottom a{color:rgba(255,255,255,.6)}
  .footer-bottom a:hover{color:#8fe0c8}

  /* ---------- Responsive ---------- */
  @media (max-width:1024px){
    .grid-4{grid-template-columns:repeat(2,minmax(0,1fr))}
    .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
    .split{grid-template-columns:1fr;gap:24px}
    .split__aside{position:static}
    .trust{grid-template-columns:repeat(2,minmax(0,1fr))}
    .flow{grid-template-columns:repeat(3,minmax(0,1fr))}
    .metrics-grid{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:24px}
    .news-layout{grid-template-columns:1fr}
    .inquiry{grid-template-columns:1fr}
    .band{grid-template-columns:1fr;gap:24px}
    .cases{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  }
  @media (max-width:900px){
    .nav-links{display:none}
    .nav-toggle{display:inline-flex}
    .nav-actions .btn--ghost{display:none}
    .mega{display:none}
    .hero-card__inner{padding:30px 24px 34px}
    .hero-badges{grid-template-columns:repeat(2,minmax(0,1fr))}
  }
  @media (max-width:768px){
    .section{padding:48px 0}
    .matrix-row{grid-template-columns:1fr;gap:10px}
    .matrix-row__tags{justify-content:flex-start}
    .myth{grid-template-columns:1fr}
    .myth__wrong{border-right:0;border-bottom:1px solid var(--line)}
    .trio{grid-template-columns:1fr}
    .audience{grid-template-columns:1fr}
    .qa-grid{grid-template-columns:1fr}
    .flow{grid-template-columns:repeat(2,minmax(0,1fr))}
    .metrics{padding:26px}
    .form-card{padding:22px}
  }
  @media (max-width:640px){
    .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
    .trust{grid-template-columns:1fr}
    .flow{grid-template-columns:1fr}
    .metrics-grid{grid-template-columns:1fr}
    .field-row{grid-template-columns:1fr}
    .footer-grid{grid-template-columns:1fr}
    .hero-badges{grid-template-columns:1fr 1fr}
    .btn{padding:11px 16px;font-size:14px}
    .nav-wrap{height:62px}
    .brand__text small{display:none}
    .hero-actions .btn{flex:1 1 auto}
  }

/* roulang page: article */
:root{
  --ink:#14202c;
  --ink-2:#3c4a56;
  --muted:#6d7c88;
  --line:#e2e8e5;
  --line-strong:#cfdad5;
  --bg:#f5f7f4;
  --surface:#ffffff;
  --brand:#14655a;
  --brand-dark:#0d4b43;
  --brand-soft:#e6f1ee;
  --gold:#b8862f;
  --gold-soft:#fbf3e2;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(20,32,44,.05),0 6px 16px rgba(20,32,44,.05);
  --shadow-md:0 12px 28px rgba(20,32,44,.10);
  --shadow-lg:0 22px 48px rgba(20,32,44,.16);
  --max:1180px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(1.5) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(20,32,44,.10)}
.nav-wrap{
  max-width:var(--max);margin:0 auto;padding:0 20px;
  height:68px;display:flex;align-items:center;gap:22px;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand__mark{
  width:38px;height:38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-weight:800;font-size:18px;
  box-shadow:0 6px 14px rgba(20,101,90,.28);
}
.brand__text strong{display:block;font-size:16px;line-height:1.2;letter-spacing:.2px}
.brand__text small{display:block;font-size:11.5px;color:var(--muted);letter-spacing:1.6px;line-height:1.5}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-item{position:relative}
.nav-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 13px;border-radius:9px;
  font-size:14.5px;color:var(--ink-2);font-weight:500;
  transition:background .18s ease,color .18s ease;
  white-space:nowrap;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-dark)}
.nav-link.is-active{color:var(--brand-dark);font-weight:700;background:var(--brand-soft)}
.nav-actions{display:flex;align-items:center;gap:9px;flex:0 0 auto}
.caret{
  width:0;height:0;border-left:4px solid transparent;border-right:4px solid transparent;
  border-top:5px solid currentColor;opacity:.6;display:inline-block;
}
.mega{
  position:absolute;top:calc(100% + 12px);right:0;width:520px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-lg);padding:18px;
  display:grid;grid-template-columns:1fr 1fr;gap:12px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.nav-item.has-mega:hover .mega,
.nav-item.has-mega:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega__card{
  display:block;padding:13px 14px;border-radius:11px;background:#f7faf8;
  border:1px solid transparent;
  transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.mega__card:hover{border-color:var(--line-strong);background:#fff;transform:translateY(-2px)}
.mega__card b{display:block;font-size:14px;color:var(--brand-dark);margin-bottom:4px}
.mega__card span{font-size:12.5px;color:var(--muted);line-height:1.6}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);align-items:center;justify-content:center;background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-menu{display:none;border-top:1px solid var(--line);background:#fff;padding:10px 20px 18px}
.mobile-menu.is-open{display:block}
.mobile-menu a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 4px;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink-2);
}
.mobile-menu a:last-child{border-bottom:0}
.mobile-menu a.is-active{color:var(--brand-dark);font-weight:700}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:11px 20px;border-radius:9px;font-size:14.5px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(20,101,90,.26)}
.btn--primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(20,101,90,.32)}
.btn--primary:active{transform:translateY(0);box-shadow:0 6px 12px rgba(20,101,90,.24)}
.btn--ghost{border:1.5px solid var(--line-strong);color:var(--ink-2);background:#fff}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px)}
.btn--sm{padding:8px 15px;font-size:13.5px}

/* ---------- Article hero ---------- */
.article-hero{
  background:linear-gradient(180deg,#ffffff 0%,#eef3f0 100%);
  border-bottom:1px solid var(--line);
  padding:26px 0 38px;
}
.breadcrumb{
  display:flex;align-items:center;gap:9px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);margin-bottom:20px;
}
.breadcrumb a{color:var(--brand);font-weight:600}
.breadcrumb a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{color:var(--line-strong)}
.breadcrumb .current{color:var(--ink-2)}
.article-chip{
  display:inline-flex;align-items:center;gap:7px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:12.5px;font-weight:700;letter-spacing:.6px;
  padding:6px 13px;border-radius:999px;margin-bottom:16px;
}
.article-title{
  font-size:34px;line-height:1.42;font-weight:800;letter-spacing:.3px;
  color:var(--ink);max-width:880px;
}
.article-title::after{
  content:"";display:block;width:56px;height:4px;border-radius:4px;
  background:linear-gradient(90deg,var(--brand),#39a08f);margin-top:18px;
}
.article-meta{
  display:flex;align-items:center;gap:20px;flex-wrap:wrap;
  margin-top:18px;font-size:13.5px;color:var(--muted);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px}
.article-meta svg{width:15px;height:15px;stroke:var(--brand);fill:none;stroke-width:1.7}

/* ---------- Article body ---------- */
.article-main{padding:40px 0 8px}
.article-shell{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:34px 40px 40px;
}
.cover{
  border-radius:var(--radius);
  overflow:hidden;
  margin-bottom:30px;
  border:1px solid var(--line);
  box-shadow:var(--shadow-sm);
}
.cover img{width:100%;height:330px;object-fit:cover}
.article-body{font-size:15.5px;line-height:1.86;color:var(--ink-2)}
.article-body > * + *{margin-top:16px}
.article-body h2{
  font-size:22px;line-height:1.5;color:var(--ink);font-weight:800;
  margin-top:36px;padding-left:15px;position:relative;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:7px;bottom:7px;width:4px;
  border-radius:4px;background:var(--brand);
}
.article-body h3{
  font-size:18px;line-height:1.6;color:var(--ink);font-weight:700;margin-top:26px;
}
.article-body h4{font-size:16px;color:var(--brand-dark);font-weight:700;margin-top:22px}
.article-body p{font-size:15.5px;line-height:1.86}
.article-body ul,.article-body ol{padding-left:22px;display:grid;gap:9px}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li::marker{color:var(--brand)}
.article-body a{color:var(--brand);font-weight:600;text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--brand-dark)}
.article-body img{border-radius:var(--radius);margin:24px auto;box-shadow:var(--shadow-sm);border:1px solid var(--line)}
.article-body strong{color:var(--ink);font-weight:700}
.article-body blockquote{
  border-left:4px solid var(--gold);background:var(--gold-soft);
  padding:15px 20px;border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:#7a5c1e;font-size:14.5px;
}
.article-body table{
  width:100%;border-collapse:collapse;font-size:14px;margin:22px 0;
  border-radius:var(--radius-sm);overflow:hidden;box-shadow:var(--shadow-sm);
}
.article-body th{background:var(--brand-soft);color:var(--brand-dark);text-align:left;padding:11px 14px;font-weight:700}
.article-body td{padding:11px 14px;border-top:1px solid var(--line);background:#fff}
.empty-state{
  text-align:center;padding:56px 20px;
  border:1px dashed var(--line-strong);border-radius:var(--radius);background:#fafcfb;
}
.empty-state h2{font-size:20px;font-weight:800;color:var(--ink);margin-bottom:10px}
.empty-state p{font-size:14.5px;color:var(--muted);margin-bottom:22px}

/* ---------- Sections ---------- */
.section{padding:54px 0}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:740px;margin-bottom:28px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;letter-spacing:2px;color:var(--brand);font-weight:700;
  margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand)}
.section-head h2{font-size:26px;font-weight:800;letter-spacing:.2px;line-height:1.45;color:var(--ink)}
.section-head p{margin-top:10px;font-size:14.5px;color:var(--muted);line-height:1.8}

/* ---------- Cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.card__icon{
  width:42px;height:42px;border-radius:12px;background:var(--brand-soft);
  color:var(--brand-dark);display:flex;align-items:center;justify-content:center;
  margin-bottom:15px;
}
.card__icon svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:16.5px;font-weight:700;color:var(--ink);margin-bottom:8px}
.card p{font-size:14px;color:var(--muted);line-height:1.78}

/* ---------- Related posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.post-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.post-card .tag{
  align-self:flex-start;font-size:12px;font-weight:700;color:var(--brand-dark);
  background:var(--brand-soft);padding:4px 10px;border-radius:999px;
}
.post-card h3{font-size:16px;font-weight:700;line-height:1.6;color:var(--ink)}
.post-card:hover h3{color:var(--brand-dark)}
.post-card .date{font-size:12.5px;color:var(--muted);margin-top:auto;padding-top:6px}

/* ---------- Channel matrix ---------- */
.channel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.channel{
  display:block;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:24px 22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease,background .2s ease;
}
.channel:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand);background:#fbfdfc}
.channel b{display:block;font-size:16.5px;color:var(--ink);margin-bottom:8px}
.channel:hover b{color:var(--brand-dark)}
.channel span{font-size:13.8px;color:var(--muted);line-height:1.75}
.channel .more{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-size:13px;font-weight:700;color:var(--brand);
}
.channel .more i{
  width:6px;height:6px;border-top:1.6px solid currentColor;border-right:1.6px solid currentColor;
  transform:rotate(45deg);transition:transform .2s ease;
}
.channel:hover .more i{transform:rotate(45deg) translate(2px,-2px)}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--line-strong);box-shadow:var(--shadow-md)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:17px 22px;
  font-size:15.5px;font-weight:700;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-dark)}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:9px;height:9px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-item .faq-body{
  padding:0 22px 20px;font-size:14.5px;color:var(--ink-2);line-height:1.85;
  border-top:1px dashed var(--line);margin-top:-4px;padding-top:16px;
}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg,#0d2a25 0%,#134e45 62%,#14655a 100%);
  border-radius:var(--radius-lg);color:#fff;padding:38px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--shadow-lg);
}
.cta-band h2{font-size:24px;font-weight:800;line-height:1.45;color:#fff}
.cta-band p{margin-top:9px;font-size:14.5px;color:rgba(255,255,255,.78);max-width:620px;line-height:1.8}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn--light{background:#fff;color:var(--brand-dark);box-shadow:0 8px 18px rgba(0,0,0,.18)}
.btn--light:hover{background:#eef7f4;transform:translateY(-2px)}
.btn--line{border:1.5px solid rgba(255,255,255,.5);color:#fff;background:rgba(255,255,255,.06)}
.btn--line:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}

/* ---------- Footer ---------- */
.site-footer{
  background:#0f2420;color:#c9d8d3;margin-top:56px;
  padding:50px 0 0;border-top:1px solid rgba(255,255,255,.08);
}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr;gap:40px;padding-bottom:38px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;color:#fff}
.footer-brand strong{font-size:16px;letter-spacing:.2px}
.footer-about{font-size:13.5px;line-height:1.85;color:#9fb4ae;max-width:430px}
.footer-col h4{color:#fff;font-size:14.5px;margin-bottom:15px;font-weight:700;letter-spacing:.4px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:13.5px;color:#a7bcb6;transition:color .2s ease}
.footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:18px 0 26px;display:flex;justify-content:space-between;
  gap:14px;font-size:12.5px;color:#7f958f;flex-wrap:wrap;
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .mega{width:440px}
  .article-title{font-size:29px}
  .card-grid,.post-grid,.channel-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:860px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn{display:none}
  .nav-wrap{height:64px;gap:14px}
  .article-shell{padding:26px 22px 30px}
  .cover img{height:230px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .footer-about{max-width:none}
  .cta-band{padding:30px 24px}
}
@media (max-width:640px){
  body{font-size:14.5px}
  .container{padding:0 16px}
  .brand__text small{display:none}
  .article-title{font-size:23px;line-height:1.5}
  .article-hero{padding:20px 0 28px}
  .article-meta{gap:12px;font-size:12.5px}
  .article-shell{padding:22px 16px 26px;border-radius:var(--radius)}
  .cover img{height:180px}
  .article-body h2{font-size:19px}
  .article-body h3{font-size:16.5px}
  .section{padding:40px 0}
  .section-head h2{font-size:21px}
  .card-grid,.post-grid,.channel-grid{grid-template-columns:1fr}
  .faq-item summary{font-size:14.5px;padding:15px 16px}
  .faq-item .faq-body{padding:0 16px 18px;padding-top:14px}
  .cta-band{padding:26px 18px}
  .cta-band h2{font-size:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category1 */
:root{
  --ink:#14202c;
  --ink-2:#3c4a56;
  --muted:#6d7c88;
  --line:#e2e8e5;
  --line-strong:#cfdad5;
  --bg:#f5f7f4;
  --surface:#ffffff;
  --brand:#14655a;
  --brand-dark:#0d4b43;
  --brand-soft:#e6f1ee;
  --gold:#b8862f;
  --gold-soft:#fbf3e2;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(20,32,44,.05),0 6px 16px rgba(20,32,44,.05);
  --shadow-md:0 12px 28px rgba(20,32,44,.10);
  --shadow-lg:0 22px 48px rgba(20,32,44,.16);
  --max:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(1.5) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(20,32,44,.10)}
.nav-wrap{
  max-width:var(--max);margin:0 auto;padding:0 20px;
  height:68px;display:flex;align-items:center;gap:22px;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand__mark{
  width:38px;height:38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-weight:800;font-size:18px;letter-spacing:0;
  box-shadow:0 6px 14px rgba(20,101,90,.28);
}
.brand__text strong{display:block;font-size:16px;line-height:1.2;letter-spacing:.2px}
.brand__text small{display:block;font-size:11.5px;color:var(--muted);letter-spacing:1.6px;line-height:1.5}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-item{position:relative}
.nav-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 13px;border-radius:9px;
  font-size:14.5px;color:var(--ink-2);font-weight:500;
  transition:background .18s ease,color .18s ease;
  white-space:nowrap;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-dark)}
.nav-link.is-active{color:var(--brand-dark);font-weight:700;background:var(--brand-soft)}
.nav-actions{display:flex;align-items:center;gap:9px;flex:0 0 auto}
.caret{
  width:6px;height:6px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;
  transform:rotate(45deg) translateY(-2px);display:inline-block;
}
.mega{
  position:absolute;top:calc(100% + 12px);right:0;width:520px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-lg);padding:18px;
  display:grid;grid-template-columns:1fr 1fr;gap:12px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.nav-item.has-mega:hover .mega,
.nav-item.has-mega:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega__card{
  display:block;padding:13px 14px;border-radius:11px;background:#f7faf8;
  border:1px solid transparent;transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.mega__card:hover{border-color:var(--line-strong);background:#fff;transform:translateY(-2px)}
.mega__card b{display:block;font-size:14px;color:var(--brand-dark);margin-bottom:4px}
.mega__card span{font-size:12.5px;color:var(--muted);line-height:1.6}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);align-items:center;justify-content:center;background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-menu{display:none;border-top:1px solid var(--line);background:#fff;padding:10px 20px 18px}
.mobile-menu.is-open{display:block}
.mobile-menu a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 4px;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink-2);
}
.mobile-menu a:last-child{border-bottom:0}
.mobile-menu a.is-active{color:var(--brand-dark);font-weight:700}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:11px 20px;border-radius:9px;font-size:14.5px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(20,101,90,.26)}
.btn--primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(20,101,90,.32)}
.btn--primary:active{transform:translateY(0);box-shadow:0 6px 12px rgba(20,101,90,.24)}
.btn--outline{border:1.5px solid rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.06)}
.btn--outline:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn--ghost{border:1.5px solid var(--line-strong);color:var(--ink-2);background:#fff}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px)}
.btn--sm{padding:8px 15px;font-size:13.5px}

/* ---------- Section basics ---------- */
.section{padding:64px 0}
.section--alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:740px;margin-bottom:32px}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:12.5px;letter-spacing:.16em;color:var(--brand);font-weight:700;margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--gold)}
.section-title{font-size:26px;line-height:1.36;letter-spacing:-.01em;font-weight:800}
.section-desc{color:var(--muted);font-size:15px;margin-top:10px;max-width:680px}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:20px}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}

/* ---------- Hero ---------- */
.page-hero{padding:26px 0 0}
.hero-card{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:#0d2a25;color:#fff;box-shadow:var(--shadow-lg);
  border:1px solid rgba(20,32,44,.08);
  display:grid;grid-template-columns:1.06fr .94fr;
}
.hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.30;filter:saturate(.8)}
.hero-card::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(112deg,rgba(9,30,26,.95) 0%,rgba(9,30,26,.86) 52%,rgba(9,30,26,.55) 100%);
}
.hero-copy{position:relative;z-index:2;padding:44px 38px 44px 40px}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);color:#eaf5f1;
  margin-bottom:18px;
}
.hero-badge i{width:7px;height:7px;border-radius:50%;background:#5fd0a8;display:inline-block}
.hero-copy h1{font-size:38px;line-height:1.24;font-weight:800;letter-spacing:-.02em}
.hero-copy h1 em{font-style:normal;color:#8fe0c4}
.hero-sub{margin-top:14px;font-size:15.5px;color:#c9dbd5;max-width:520px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
.hero-tags span{
  padding:6px 13px;border-radius:999px;font-size:12.5px;color:#d8e9e3;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
}
.hero-team{
  margin-top:26px;padding:16px 18px;border-radius:14px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
}
.hero-team__avatars{display:flex}
.hero-team__avatars span{
  width:32px;height:32px;border-radius:50%;margin-left:-9px;
  display:flex;align-items:center;justify-content:center;
  font-size:12.5px;font-weight:700;color:#0d2a25;
  background:#bfe6d8;border:2px solid #0d2a25;
}
.hero-team__avatars span:first-child{margin-left:0}
.hero-team__avatars span.is-empty{background:rgba(255,255,255,.16);color:#dbeae5;border-style:dashed}
.hero-team__text{font-size:13.5px;color:#dcece7}
.hero-team__text b{color:#fff}
.hero-actions{display:flex;gap:12px;margin-top:22px;flex-wrap:wrap}
.hero-media{position:relative;z-index:2;padding:24px;display:flex}
.hero-media__frame{
  position:relative;width:100%;border-radius:16px;overflow:hidden;
  border:1px solid rgba(255,255,255,.22);box-shadow:0 18px 40px rgba(0,0,0,.28);
  min-height:300px;background:#123b33;
}
.hero-media__frame img{width:100%;height:100%;object-fit:cover;position:absolute;inset:0}
.hero-media__note{
  position:absolute;left:14px;bottom:14px;right:14px;
  padding:11px 13px;border-radius:11px;font-size:12.5px;line-height:1.6;
  background:rgba(9,30,26,.78);border:1px solid rgba(255,255,255,.18);color:#dcece7;
}

/* ---------- Cards ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.icon-box{
  width:42px;height:42px;border-radius:11px;display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-dark);margin-bottom:14px;
}
.icon-box svg{width:21px;height:21px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:16.5px;font-weight:700;margin-bottom:8px}
.card p{font-size:14px;color:var(--muted);line-height:1.75}
.card .tagline{
  display:inline-block;margin-top:14px;padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:600;color:var(--brand-dark);background:var(--brand-soft);
}

/* ---------- Device table ---------- */
.plan-list{display:grid;gap:12px}
.plan-row{
  display:grid;grid-template-columns:200px 1fr 250px;gap:20px;align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 22px;box-shadow:var(--shadow-sm);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.plan-row:hover{border-color:var(--line-strong);transform:translateY(-3px);box-shadow:var(--shadow-md)}
.plan-row__device{display:flex;align-items:center;gap:12px;font-weight:700;font-size:15px}
.plan-row__device .dot{width:9px;height:9px;border-radius:3px;background:var(--gold);flex:0 0 auto}
.plan-row__way{font-size:14px;color:var(--ink-2)}
.plan-row__note{font-size:12.5px;color:var(--muted);line-height:1.65}
.plan-row__note b{color:var(--brand-dark)}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);position:relative;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.step__num{
  width:34px;height:34px;border-radius:10px;display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;color:#fff;background:var(--brand);margin-bottom:14px;
  box-shadow:0 6px 14px rgba(20,101,90,.25);
}
.step h3{font-size:15.5px;font-weight:700;margin-bottom:7px}
.step p{font-size:13.5px;color:var(--muted)}

/* ---------- Stats band ---------- */
.band{
  border-radius:var(--radius-lg);padding:38px 34px;color:#fff;
  background:linear-gradient(150deg,#0d2a25 0%,#134a40 100%);
  box-shadow:var(--shadow-lg);
}
.band__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:26px}
.band__head h2{font-size:24px;font-weight:800;letter-spacing:-.01em}
.band__head p{color:#b9d3cc;font-size:14px;max-width:520px;margin-top:8px}
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:18px}
.stat{padding:18px;border-radius:13px;background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14)}
.stat b{display:block;font-size:28px;line-height:1.2;color:#f0cf8f;font-weight:800;letter-spacing:-.01em}
.stat span{display:block;font-size:12.5px;color:#c6dbd5;margin-top:6px}

/* ---------- Quotes ---------- */
.quotes{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.quote{
  background:rgba(255,255,255,.07);border:1px solid rgba(255,255,255,.14);
  border-radius:13px;padding:20px;
}
.quote p{font-size:13.8px;color:#dbeae5;line-height:1.78}
.quote footer{margin-top:14px;display:flex;align-items:center;gap:10px}
.quote footer .ava{
  width:30px;height:30px;border-radius:50%;background:#bfe6d8;color:#0d2a25;
  display:flex;align-items:center;justify-content:center;font-size:12.5px;font-weight:700;
}
.quote footer span{font-size:12.5px;color:#a9c6bf}

/* ---------- Audience ---------- */
.audience{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
}
.aud{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);border-top:3px solid var(--brand);
  transition:transform .2s ease,box-shadow .2s ease;
}
.aud:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.aud h3{font-size:16px;font-weight:700;margin-bottom:8px}
.aud p{font-size:13.8px;color:var(--muted)}
.aud ul{margin-top:12px;display:grid;gap:7px}
.aud li{font-size:13.2px;color:var(--ink-2);padding-left:16px;position:relative}
.aud li::before{
  content:"";position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--gold);
}

/* ---------- Channel matrix ---------- */
.channels{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.channel{
  display:block;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.channel:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--brand)}
.channel__label{
  display:inline-block;font-size:11.5px;letter-spacing:.1em;font-weight:700;color:var(--gold);
  background:var(--gold-soft);padding:4px 10px;border-radius:6px;margin-bottom:12px;
}
.channel h3{font-size:16.5px;font-weight:700;margin-bottom:8px;color:var(--brand-dark)}
.channel p{font-size:13.8px;color:var(--muted)}
.channel .more{display:inline-flex;align-items:center;gap:6px;margin-top:14px;font-size:13.5px;font-weight:600;color:var(--brand)}

/* ---------- News list ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.news-card{
  display:flex;flex-direction:column;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius);padding:20px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.news-card__meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--muted);margin-bottom:10px}
.news-card__meta .pill{
  padding:3px 9px;border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);font-weight:600;
}
.news-card h3{font-size:15.5px;font-weight:700;line-height:1.6;margin-bottom:8px}
.news-card p{font-size:13.5px;color:var(--muted);flex:1}
.news-card .go{margin-top:14px;font-size:13.2px;font-weight:600;color:var(--brand)}
.news-empty{
  background:var(--surface);border:1px dashed var(--line-strong);border-radius:var(--radius);
  padding:34px;text-align:center;color:var(--muted);font-size:14px;
}
.news-foot{display:flex;justify-content:center;margin-top:26px}

/* ---------- FAQ ---------- */
.faq{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-sm);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--brand);box-shadow:var(--shadow-md)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:17px 22px;font-size:15px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:9px;height:9px;flex:0 0 auto;
  border-right:1.8px solid var(--brand);border-bottom:1.8px solid var(--brand);
  transform:rotate(45deg);transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-item .faq-body{padding:0 22px 20px;font-size:14px;color:var(--muted);line-height:1.8}

/* ---------- CTA ---------- */
.cta-wrap{
  display:grid;grid-template-columns:1.05fr .95fr;gap:0;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-md);
}
.cta-copy{padding:38px 36px;background:linear-gradient(160deg,#f2f8f5 0%,#ffffff 70%)}
.cta-copy h2{font-size:25px;font-weight:800;line-height:1.35;letter-spacing:-.01em}
.cta-copy p{color:var(--muted);font-size:14.5px;margin-top:12px;max-width:440px}
.cta-points{margin-top:20px;display:grid;gap:10px}
.cta-points li{font-size:13.8px;color:var(--ink-2);padding-left:22px;position:relative}
.cta-points li::before{
  content:"";position:absolute;left:0;top:5px;width:13px;height:13px;border-radius:50%;
  background:var(--brand-soft);border:1px solid var(--brand);
}
.cta-points li::after{
  content:"";position:absolute;left:4px;top:9px;width:5px;height:2px;background:var(--brand);
  transform:rotate(45deg);
}
.cta-form{padding:34px 34px 38px;background:#fff;border-left:1px solid var(--line)}
.field{margin-bottom:14px}
.field label{display:block;font-size:13px;font-weight:600;color:var(--ink-2);margin-bottom:6px}
.field input,.field select,.field textarea{
  width:100%;padding:11px 13px;border-radius:10px;border:1px solid var(--line-strong);
  background:#fbfcfb;font-size:14px;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(20,101,90,.12);
}
.field textarea{min-height:88px;resize:vertical}
.form-note{font-size:12.5px;color:var(--muted);margin-top:10px}
.form-note.is-done{color:var(--brand-dark);font-weight:600}

/* ---------- Footer ---------- */
.site-footer{background:#0d2a25;color:#d7e6e1;margin-top:64px;padding:52px 0 0}
.footer-grid{display:grid;grid-template-columns:1.45fr 1fr 1fr;gap:34px;padding-bottom:34px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.footer-brand strong{color:#fff;font-size:16px}
.footer-about{font-size:13.5px;color:#a9c6bf;line-height:1.8;max-width:420px}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;font-weight:700}
.footer-col ul{display:grid;gap:9px}
.footer-col a{font-size:13.5px;color:#b9d3cc;transition:color .18s ease}
.footer-col a:hover{color:#fff}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:18px 0 22px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:#8fada6;
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .hero-card{grid-template-columns:1fr}
  .hero-media{padding:0 24px 26px;min-height:0}
  .hero-media__frame{min-height:230px;position:relative}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .grid-3,.audience,.channels,.news-grid,.quotes{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .plan-row{grid-template-columns:180px 1fr;row-gap:8px}
  .plan-row__note{grid-column:1 / -1}
  .stats{grid-template-columns:repeat(2,1fr)}
  .cta-wrap{grid-template-columns:1fr}
  .cta-form{border-left:0;border-top:1px solid var(--line)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:860px){
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .nav-actions .btn{padding:8px 13px;font-size:13px}
  .hero-copy{padding:34px 24px}
  .hero-copy h1{font-size:30px}
}
@media (max-width:768px){
  .section{padding:48px 0}
  .grid-2,.grid-3,.grid-4,.audience,.channels,.news-grid,.quotes,.steps{grid-template-columns:1fr}
  .section-title{font-size:22px}
  .band{padding:28px 22px}
  .band__head h2{font-size:20px}
  .cta-copy,.cta-form{padding:26px 22px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .plan-row{padding:16px 18px}
}
@media (max-width:520px){
  .container,.nav-wrap{padding-left:16px;padding-right:16px}
  .brand__text small{display:none}
  .hero-copy{padding:28px 18px}
  .hero-copy h1{font-size:26px}
  .hero-sub{font-size:14px}
  .hero-actions .btn{width:100%}
  .stats{grid-template-columns:1fr}
  .stat b{font-size:24px}
  .footer-bottom{flex-direction:column;gap:8px}
  .card,.step,.aud,.channel,.news-card{padding:18px}
}

/* roulang page: category2 */
:root{
  --ink:#14202c;
  --ink-2:#3c4a56;
  --muted:#6d7c88;
  --line:#e2e8e5;
  --line-strong:#cfdad5;
  --bg:#f5f7f4;
  --surface:#ffffff;
  --brand:#14655a;
  --brand-dark:#0d4b43;
  --brand-soft:#e6f1ee;
  --gold:#b8862f;
  --gold-soft:#fbf3e2;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(20,32,44,.05),0 6px 16px rgba(20,32,44,.05);
  --shadow-md:0 12px 28px rgba(20,32,44,.10);
  --shadow-lg:0 22px 48px rgba(20,32,44,.16);
  --max:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
summary{cursor:pointer;list-style:none}
summary::-webkit-details-marker{display:none}
h1,h2,h3,h4{margin:0;line-height:1.34;letter-spacing:-.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(20,101,90,.45);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(1.5) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(20,32,44,.10)}
.nav-wrap{
  max-width:var(--max);margin:0 auto;padding:0 20px;
  height:68px;display:flex;align-items:center;gap:22px;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand__mark{
  width:38px;height:38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-weight:800;font-size:18px;letter-spacing:0;
  box-shadow:0 6px 14px rgba(20,101,90,.28);
}
.brand__text strong{display:block;font-size:16px;line-height:1.2;letter-spacing:.2px}
.brand__text small{display:block;font-size:11.5px;color:var(--muted);letter-spacing:1.6px;line-height:1.5}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-item{position:relative}
.nav-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 13px;border-radius:9px;
  font-size:14.5px;color:var(--ink-2);font-weight:500;
  transition:background .18s ease,color .18s ease;
  white-space:nowrap;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-dark)}
.nav-link.is-active{color:var(--brand-dark);font-weight:700;background:var(--brand-soft)}
.caret{
  width:7px;height:7px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;
  transform:rotate(45deg) translateY(-1px);display:inline-block;opacity:.7;
}
.nav-actions{display:flex;align-items:center;gap:9px;flex:0 0 auto}
.mega{
  position:absolute;top:calc(100% + 12px);right:0;width:520px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-lg);padding:18px;
  display:grid;grid-template-columns:1fr 1fr;gap:12px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.nav-item.has-mega:hover .mega,
.nav-item.has-mega:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega__card{
  display:block;padding:13px 14px;border-radius:11px;background:#f7faf8;
  border:1px solid transparent;transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.mega__card:hover{border-color:var(--line-strong);background:#fff;transform:translateY(-2px)}
.mega__card b{display:block;font-size:14px;color:var(--brand-dark);margin-bottom:4px}
.mega__card span{font-size:12.5px;color:var(--muted);line-height:1.6}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);align-items:center;justify-content:center;
  background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-menu{display:none;border-top:1px solid var(--line);background:#fff;padding:10px 20px 18px}
.mobile-menu.is-open{display:block}
.mobile-menu a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 4px;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink-2);
  min-height:44px;
}
.mobile-menu a:last-child{border-bottom:0}
.mobile-menu a.is-active{color:var(--brand-dark);font-weight:700}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:11px 20px;border-radius:9px;font-size:14.5px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(20,101,90,.26)}
.btn--primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(20,101,90,.32)}
.btn--primary:active{transform:translateY(0);box-shadow:0 6px 12px rgba(20,101,90,.24)}
.btn--outline{border:1.5px solid rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.06)}
.btn--outline:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn--ghost{border:1.5px solid var(--line-strong);color:var(--ink-2);background:#fff}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px)}
.btn--sm{padding:8px 15px;font-size:13.5px}

/* ---------- Hero stack ---------- */
.hero{padding:26px 0 0}
.hero-stack{display:grid;grid-template-columns:1.6fr 1fr;gap:18px;align-items:stretch}
.hero-main{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:#0d2a25;color:#fff;box-shadow:var(--shadow-lg);
  border:1px solid rgba(20,32,44,.08);
  display:flex;align-items:center;
}
.hero-main__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.36;filter:saturate(.85)}
.hero-main::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(118deg,rgba(9,30,26,.95) 0%,rgba(9,30,26,.84) 52%,rgba(9,30,26,.55) 100%);
}
.hero-main__inner{position:relative;z-index:2;padding:40px 42px 42px;width:100%}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:1.4px;
  text-transform:uppercase;color:#a9d8cf;margin-bottom:16px;
}
.hero-kicker::before{content:"";width:26px;height:2px;background:#a9d8cf;display:block;border-radius:2px}
.hero-main h1{font-size:38px;font-weight:800;letter-spacing:-.6px;margin-bottom:14px}
.hero-main h1 em{font-style:normal;color:#f0d59a}
.hero-sub{font-size:15px;line-height:1.8;color:rgba(255,255,255,.82);max-width:560px;margin-bottom:22px}
.hero-tags{display:flex;flex-wrap:wrap;gap:9px;margin-bottom:26px}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.12);color:#e8f5f1;border:1px solid rgba(255,255,255,.22);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px}
.hero-side{display:grid;gap:18px;align-content:stretch}
.side-card{
  border-radius:var(--radius-lg);padding:22px 22px;
  border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;justify-content:center;
}
.side-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.side-card--shift{margin-left:18px;background:linear-gradient(160deg,#0f4a42,#14655a);border-color:transparent;color:#fff}
.side-card--shift:hover{box-shadow:var(--shadow-lg)}
.side-card__label{font-size:11.5px;letter-spacing:1.6px;color:var(--muted);margin-bottom:9px}
.side-card--shift .side-card__label{color:rgba(255,255,255,.66)}
.side-card h3{font-size:17px;margin-bottom:8px}
.side-card p{font-size:13.5px;line-height:1.72;color:var(--ink-2)}
.side-card--shift p{color:rgba(255,255,255,.82)}
.side-card__meta{display:flex;align-items:center;gap:10px;margin-top:14px;font-size:12.5px;color:var(--muted)}
.side-card--shift .side-card__meta{color:rgba(255,255,255,.7)}
.dot{width:6px;height:6px;border-radius:50%;background:var(--gold);display:inline-block}

/* ---------- Sections ---------- */
.section{padding:62px 0}
.section--plain{background:var(--bg)}
.section--paper{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section--soft{background:var(--brand-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:34px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:700;
  letter-spacing:1.6px;color:var(--brand);margin-bottom:12px;
}
.eyebrow::before{content:"";width:20px;height:2px;background:var(--brand);border-radius:2px}
.section-head h2{font-size:27px;font-weight:800;margin-bottom:12px}
.section-head p{font-size:14.5px;color:var(--muted);line-height:1.8}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;max-width:none;flex-wrap:wrap}

/* ---------- Cards ---------- */
.grid{display:grid;gap:18px}
.grid-4{grid-template-columns:repeat(4,1fr)}
.grid-3{grid-template-columns:repeat(3,1fr)}
.grid-2{grid-template-columns:repeat(2,1fr)}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.card h3{font-size:16.5px;margin-bottom:9px}
.card p{font-size:13.8px;color:var(--ink-2);line-height:1.76}
.icon-box{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-dark);margin-bottom:16px;
  transition:background .22s ease,color .22s ease;
}
.icon-box svg{width:22px;height:22px;stroke-width:1.7}
.card:hover .icon-box{background:var(--brand);color:#fff}
.tag{
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:999px;font-size:12px;font-weight:600;
  background:var(--brand-soft);color:var(--brand-dark);border:1px solid #d5e6e1;
}
.tag--gold{background:var(--gold-soft);color:#8a651f;border-color:#f0e0bd}
.card__foot{margin-top:auto;padding-top:16px;display:flex;flex-wrap:wrap;gap:8px}

/* ---------- Stats strip ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);border:1px solid var(--line);border-radius:var(--radius);
  overflow:hidden;margin-top:26px;
}
.stat{background:#fff;padding:22px 20px}
.stat b{display:block;font-size:26px;font-weight:800;color:var(--brand-dark);letter-spacing:-.5px;line-height:1.2}
.stat span{display:block;font-size:12.8px;color:var(--muted);margin-top:6px}

/* ---------- Rules split ---------- */
.split{display:grid;grid-template-columns:1.08fr .92fr;gap:28px;align-items:start}
.rank-list{counter-reset:rk;display:grid;gap:12px}
.rank-item{
  display:flex;gap:14px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:15px 17px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.rank-item:hover{transform:translateY(-2px);border-color:var(--line-strong);box-shadow:var(--shadow-md)}
.rank-item__no{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.rank-item b{display:block;font-size:14.5px;margin-bottom:3px}
.rank-item p{font-size:13.2px;color:var(--ink-2);line-height:1.7}
.media-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease;
}
.media-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.media-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.media-card__body{padding:20px 22px 22px}
.media-card__body h3{font-size:16px;margin-bottom:8px}
.media-card__body p{font-size:13.4px;color:var(--muted);line-height:1.74}
.media-card__note{
  margin-top:14px;padding-top:14px;border-top:1px dashed var(--line);
  font-size:12.6px;color:var(--muted);display:flex;align-items:center;gap:8px;
}

/* ---------- Timeline ---------- */
.timeline{position:relative;display:grid;gap:16px;margin-top:6px}
.timeline::before{
  content:"";position:absolute;left:19px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,var(--brand),#cfe3dd);border-radius:2px;
}
.tl-item{position:relative;padding-left:58px}
.tl-item__no{
  position:absolute;left:0;top:2px;width:40px;height:40px;border-radius:12px;
  background:#fff;border:1.5px solid var(--brand);color:var(--brand-dark);
  font-weight:800;font-size:14px;display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(20,101,90,.14);
}
.tl-item__body{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:18px 20px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.tl-item__body:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.tl-item__body h3{font-size:15.5px;margin-bottom:6px}
.tl-item__body p{font-size:13.6px;color:var(--ink-2);line-height:1.74}

/* ---------- Pitfall list ---------- */
.pit-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;align-items:start}
.pit-card{
  background:#fff;border:1px solid var(--line);border-left:3px solid var(--gold);
  border-radius:var(--radius-sm);padding:18px 20px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease;
}
.pit-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md)}
.pit-card b{display:block;font-size:14.6px;margin-bottom:6px;color:var(--ink)}
.pit-card p{font-size:13.4px;color:var(--ink-2);line-height:1.74}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:16px 20px;box-shadow:var(--shadow-sm);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:var(--brand);box-shadow:var(--shadow-md)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  font-size:14.6px;font-weight:600;color:var(--ink);min-height:30px;
}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:9px;height:9px;
  border-right:1.8px solid var(--brand);border-bottom:1.8px solid var(--brand);
  transform:rotate(45deg);transition:transform .22s ease;margin-top:-4px;
}
.faq-item[open] summary::after{transform:rotate(-135deg);margin-top:3px}
.faq-item p{font-size:13.6px;color:var(--ink-2);line-height:1.78;margin-top:10px;padding-top:10px;border-top:1px dashed var(--line)}

/* ---------- News list ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);padding:22px 22px;box-shadow:var(--shadow-sm);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.news-card__top{display:flex;align-items:center;gap:8px;margin-bottom:12px;flex-wrap:wrap}
.news-card h3{font-size:15.6px;line-height:1.55;margin-bottom:9px}
.news-card h3 a{transition:color .18s ease}
.news-card h3 a:hover{color:var(--brand-dark)}
.news-card p{font-size:13.4px;color:var(--muted);line-height:1.74}
.news-card__foot{
  margin-top:auto;padding-top:14px;border-top:1px dashed var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:12.4px;color:var(--muted);
}
.news-card__more{font-weight:700;color:var(--brand-dark);font-size:12.8px}
.news-card__more:hover{color:var(--brand)}
.empty-note{
  grid-column:1/-1;background:#fff;border:1px dashed var(--line-strong);
  border-radius:var(--radius);padding:34px 22px;text-align:center;
  color:var(--muted);font-size:14px;
}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(120deg,#0d4b43 0%,#14655a 58%,#1d7a6c 100%);
  color:#fff;padding:44px 44px;box-shadow:var(--shadow-lg);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:280px;height:280px;
  border-radius:50%;background:rgba(255,255,255,.08);
}
.cta-band__text{position:relative;z-index:2;max-width:620px}
.cta-band h2{font-size:25px;font-weight:800;margin-bottom:10px}
.cta-band p{font-size:14.2px;color:rgba(255,255,255,.84);line-height:1.8}
.cta-band__actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- Footer ---------- */
.site-footer{background:#0f1c26;color:#c8d4d9;padding:56px 0 26px;margin-top:62px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:36px;padding-bottom:32px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:14px}
.footer-brand .brand__mark{
  background:linear-gradient(140deg,#1d7a6c,#14655a);
  box-shadow:0 6px 14px rgba(0,0,0,.35);
}
.footer-brand strong{font-size:16px;color:#fff;letter-spacing:.3px}
.footer-about{font-size:13.4px;line-height:1.82;color:#93a6ad;max-width:400px}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:14px;letter-spacing:.4px}
.footer-col ul{display:grid;gap:9px}
.footer-col a{
  font-size:13.4px;color:#a6b7bd;transition:color .18s ease,padding-left .18s ease;
  display:inline-block;
}
.footer-col a:hover{color:#fff;padding-left:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding-top:20px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.6px;color:#82959c;
}

/* ---------- Responsive ---------- */
@media (max-width:1080px){
  .hero-stack{grid-template-columns:1fr}
  .hero-side{grid-template-columns:1fr 1fr;align-items:stretch}
  .side-card--shift{margin-left:0}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:920px){
  .nav-links{display:none}
  .nav-toggle{display:flex;margin-left:auto}
  .nav-actions .btn{display:none}
  .nav-wrap{gap:12px}
  .grid-3{grid-template-columns:1fr 1fr}
  .faq-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  .section{padding:46px 0}
  .hero-main__inner{padding:30px 24px 32px}
  .hero-main h1{font-size:29px}
  .hero-side{grid-template-columns:1fr}
  .section-head h2{font-size:23px}
  .grid-2,.grid-3,.pit-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 24px}
  .cta-band h2{font-size:21px}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:44px 0 22px;margin-top:46px}
}
@media (max-width:520px){
  .container,.nav-wrap{padding-left:16px;padding-right:16px}
  .hero-main h1{font-size:25px}
  .hero-sub{font-size:14px}
  .grid-4{grid-template-columns:1fr}
  .news-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr 1fr}
  .hero-actions .btn{width:100%}
  .cta-band__actions .btn{width:100%}
  .card,.news-card{padding:20px 18px}
}

/* roulang page: category3 */
:root{
  --ink:#14202c;
  --ink-2:#3c4a56;
  --muted:#6d7c88;
  --line:#e2e8e5;
  --line-strong:#cfdad5;
  --bg:#f5f7f4;
  --surface:#ffffff;
  --brand:#14655a;
  --brand-dark:#0d4b43;
  --brand-soft:#e6f1ee;
  --gold:#b8862f;
  --gold-soft:#fbf3e2;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 1px 2px rgba(20,32,44,.05),0 6px 16px rgba(20,32,44,.05);
  --shadow-md:0 12px 28px rgba(20,32,44,.10);
  --shadow-lg:0 22px 48px rgba(20,32,44,.16);
  --max:1180px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:15px;
  line-height:1.78;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
::selection{background:var(--brand-soft);color:var(--brand-dark)}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 20px}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(1.5) blur(12px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 24px rgba(20,32,44,.10)}
.nav-wrap{
  max-width:var(--max);margin:0 auto;padding:0 20px;
  height:68px;display:flex;align-items:center;gap:22px;
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto}
.brand__mark{
  width:38px;height:38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-weight:800;font-size:18px;
  box-shadow:0 6px 14px rgba(20,101,90,.28);
}
.brand__text strong{display:block;font-size:16px;line-height:1.2;letter-spacing:.2px}
.brand__text small{display:block;font-size:11.5px;color:var(--muted);letter-spacing:1.6px;line-height:1.5}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-item{position:relative}
.nav-link{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 13px;border-radius:9px;
  font-size:14.5px;color:var(--ink-2);font-weight:500;
  transition:background .18s ease,color .18s ease;
  white-space:nowrap;
}
.nav-link:hover{background:var(--brand-soft);color:var(--brand-dark)}
.nav-link.is-active{color:var(--brand-dark);font-weight:700;background:var(--brand-soft)}
.caret{width:6px;height:6px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;transform:rotate(45deg) translateY(-2px);display:inline-block}
.nav-actions{display:flex;align-items:center;gap:9px;flex:0 0 auto}
.mega{
  position:absolute;top:calc(100% + 12px);right:0;width:520px;
  background:#fff;border:1px solid var(--line);border-radius:16px;
  box-shadow:var(--shadow-lg);padding:18px;
  display:grid;grid-template-columns:1fr 1fr;gap:12px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.nav-item.has-mega:hover .mega,
.nav-item.has-mega:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega__card{
  display:block;padding:13px 14px;border-radius:11px;background:#f7faf8;
  border:1px solid transparent;transition:border-color .2s ease,background .2s ease,transform .2s ease;
}
.mega__card:hover{border-color:var(--line-strong);background:#fff;transform:translateY(-2px)}
.mega__card b{display:block;font-size:14px;color:var(--brand-dark);margin-bottom:4px}
.mega__card span{font-size:12.5px;color:var(--muted);line-height:1.6}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);align-items:center;justify-content:center;background:#fff;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-menu{display:none;border-top:1px solid var(--line);background:#fff;padding:10px 20px 18px}
.mobile-menu.is-open{display:block}
.mobile-menu a{
  display:flex;align-items:center;justify-content:space-between;
  padding:13px 4px;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink-2);
}
.mobile-menu a:last-child{border-bottom:0}
.mobile-menu a.is-active{color:var(--brand-dark);font-weight:700}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  padding:11px 20px;border-radius:9px;font-size:14.5px;font-weight:600;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn--primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px rgba(20,101,90,.26)}
.btn--primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:0 12px 24px rgba(20,101,90,.32)}
.btn--primary:active{transform:translateY(0);box-shadow:0 6px 12px rgba(20,101,90,.24)}
.btn--outline{border:1.5px solid rgba(255,255,255,.55);color:#fff;background:rgba(255,255,255,.06)}
.btn--outline:hover{background:rgba(255,255,255,.16);transform:translateY(-2px)}
.btn--ghost{border:1.5px solid var(--line-strong);color:var(--ink-2);background:#fff}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand-dark);transform:translateY(-2px)}
.btn--sm{padding:8px 15px;font-size:13.5px}

/* ---------- Hero ---------- */
.cat-hero{padding:26px 0 8px}
.hero-shell{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:#0e2f2a;color:#fff;box-shadow:var(--shadow-lg);isolation:isolate;
}
.hero-shell__bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.30;filter:saturate(.8);z-index:0}
.hero-shell::after{
  content:"";position:absolute;inset:0;z-index:1;
  background:linear-gradient(116deg,rgba(9,32,27,.95) 0%,rgba(11,42,36,.87) 46%,rgba(16,64,55,.52) 100%);
}
.hero-shell__inner{
  position:relative;z-index:2;display:grid;grid-template-columns:1.22fr .78fr;
  gap:38px;align-items:center;padding:46px 44px 48px;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:rgba(255,255,255,.66);margin-bottom:16px;flex-wrap:wrap}
.crumb b{color:#fff;font-weight:600}
.hero-shell h1{font-size:clamp(28px,3.6vw,42px);line-height:1.26;font-weight:800;letter-spacing:.4px;margin:0 0 14px}
.hero-shell h1 em{font-style:normal;color:#9fe0cf}
.hero-sub{font-size:15.5px;line-height:1.85;color:rgba(255,255,255,.82);max-width:600px}
.pill-row{display:flex;flex-wrap:wrap;gap:9px;margin:22px 0 26px}
.pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.22);color:#e8f4f0;
}
.pill::before{content:"";width:6px;height:6px;border-radius:50%;background:#7fd0bb}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px}

/* hero panel */
.hero-panel{
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.20);
  border-radius:18px;padding:24px;backdrop-filter:blur(8px);
}
.ring-wrap{display:flex;align-items:center;gap:18px}
.ring{width:104px;height:104px;flex:0 0 auto;transform:rotate(-90deg)}
.ring__track{fill:none;stroke:rgba(255,255,255,.18);stroke-width:9}
.ring__bar{fill:none;stroke:#7fd0bb;stroke-width:9;stroke-linecap:round;stroke-dasharray:314.16;stroke-dashoffset:87.96}
.ring-copy strong{display:block;font-size:30px;line-height:1.1;font-weight:800;letter-spacing:.5px}
.ring-copy span{display:block;font-size:12.5px;color:rgba(255,255,255,.70);margin-top:6px;line-height:1.6}
.panel-split{height:1px;background:rgba(255,255,255,.18);margin:20px 0 16px}
.panel-title{font-size:12.5px;letter-spacing:1.4px;color:rgba(255,255,255,.62);margin-bottom:12px;font-weight:700}
.panel-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:13.5px;line-height:1.65;color:rgba(255,255,255,.86);padding:7px 0;
}
.panel-list li i{
  flex:0 0 auto;width:18px;height:18px;border-radius:50%;margin-top:3px;
  background:rgba(127,208,187,.22);color:#9fe0cf;
  display:inline-flex;align-items:center;justify-content:center;font-size:11px;font-style:normal;font-weight:700;
}

/* ---------- Sections ---------- */
.section{padding:64px 0}
.section--alt{background:#eaf1ee}
.section--tight{padding:52px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:34px;flex-wrap:wrap}
.section-head__main{max-width:660px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:1.8px;color:var(--brand);margin-bottom:10px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--brand)}
.section-head h2{font-size:clamp(21px,2.4vw,27px);line-height:1.34;font-weight:800;letter-spacing:.3px}
.section-desc{font-size:14px;color:var(--muted);max-width:340px;line-height:1.8}

/* ---------- Grids ---------- */
.grid{display:grid;gap:20px}
.grid--2{grid-template-columns:repeat(2,1fr)}
.grid--3{grid-template-columns:repeat(3,1fr)}
.grid--4{grid-template-columns:repeat(4,1fr)}

/* ---------- Cards ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.card__num{
  width:34px;height:34px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-soft);color:var(--brand-dark);font-weight:800;font-size:14px;margin-bottom:14px;
}
.card h3{font-size:16.5px;line-height:1.45;font-weight:700;margin-bottom:9px}
.card p{font-size:13.8px;color:var(--ink-2);line-height:1.8}
.card__tag{
  display:inline-flex;align-items:center;margin-top:auto;padding-top:16px;
  font-size:12px;font-weight:600;color:var(--brand);letter-spacing:.4px;
}
.card__media{
  position:relative;border-radius:var(--radius-sm);overflow:hidden;margin:-6px -6px 18px;
  aspect-ratio:16/10;background:#dfe9e5;
}
.card__media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.card:hover .card__media img{transform:scale(1.04)}
.card__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(9,32,27,0) 45%,rgba(9,32,27,.35) 100%);
}

/* ---------- Scene list ---------- */
.scene-list{display:grid;grid-template-columns:repeat(2,1fr);gap:16px}
.scene-item{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:20px 22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.scene-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.scene-item__idx{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-weight:800;font-size:14px;box-shadow:0 6px 14px rgba(20,101,90,.24);
}
.scene-item h3{font-size:15.5px;font-weight:700;margin-bottom:6px}
.scene-item p{font-size:13.5px;color:var(--ink-2);line-height:1.75}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;position:relative}
.step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:24px 22px;box-shadow:var(--shadow-sm);position:relative;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.step:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.step__bar{height:4px;width:44px;border-radius:3px;background:var(--brand);margin-bottom:16px}
.step__no{font-size:12px;font-weight:800;letter-spacing:2px;color:var(--gold);margin-bottom:8px}
.step h3{font-size:16px;font-weight:700;margin-bottom:8px}
.step p{font-size:13.4px;color:var(--ink-2);line-height:1.78}

/* ---------- Stats ---------- */
.stats{
  border-radius:var(--radius-lg);background:#0f2723;color:#fff;
  padding:40px 40px;display:grid;grid-template-columns:repeat(4,1fr);gap:26px;
  box-shadow:var(--shadow-md);
}
.stat__num{font-size:32px;font-weight:800;letter-spacing:.5px;line-height:1.1;color:#9fe0cf}
.stat__num small{font-size:15px;font-weight:700;margin-left:3px;color:rgba(255,255,255,.75)}
.stat__label{font-size:13px;color:rgba(255,255,255,.72);margin-top:8px;line-height:1.7}

/* ---------- Quotes ---------- */
.quote-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;gap:16px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.quote-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.quote-card__mark{font-size:30px;line-height:1;color:var(--brand-soft);font-weight:800}
.quote-card p{font-size:14px;color:var(--ink-2);line-height:1.85}
.quote-who{display:flex;align-items:center;gap:11px;margin-top:auto;padding-top:6px}
.quote-who span.avatar{
  width:36px;height:36px;border-radius:50%;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--gold-soft);color:var(--gold);font-weight:800;font-size:14px;
}
.quote-who b{display:block;font-size:13.5px;font-weight:700}
.quote-who small{display:block;font-size:12px;color:var(--muted)}

/* ---------- News ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}
.news-card{
  display:flex;flex-direction:column;gap:10px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--line-strong)}
.news-card__cat{
  align-self:flex-start;font-size:11.5px;font-weight:700;letter-spacing:.6px;
  padding:4px 10px;border-radius:999px;background:var(--brand-soft);color:var(--brand-dark);
}
.news-card h3{font-size:15.5px;font-weight:700;line-height:1.55}
.news-card p{font-size:13.4px;color:var(--ink-2);line-height:1.75}
.news-card__time{font-size:12px;color:var(--muted);margin-top:auto;padding-top:10px}
.empty-note{
  padding:26px;border:1px dashed var(--line-strong);border-radius:var(--radius);
  color:var(--muted);font-size:14px;text-align:center;background:#fbfdfc;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  border:1px solid var(--line);border-radius:12px;background:var(--surface);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--line-strong);box-shadow:var(--shadow-sm)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:17px 20px;font-weight:700;font-size:15px;
  display:flex;justify-content:space-between;gap:16px;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:9px;height:9px;flex:0 0 auto;
  border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);
  transform:rotate(45deg);margin-top:-4px;transition:transform .2s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg);margin-top:2px}
.faq-item[open] summary{color:var(--brand-dark)}
.faq-item p{padding:0 20px 18px;font-size:14px;color:var(--ink-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--radius-lg);
  background:linear-gradient(120deg,#0d4b43 0%,#14655a 58%,#1a7a6c 100%);
  color:#fff;padding:46px 44px;display:grid;grid-template-columns:1.3fr .7fr;
  gap:32px;align-items:center;box-shadow:var(--shadow-lg);
}
.cta-band h2{font-size:clamp(21px,2.4vw,27px);font-weight:800;line-height:1.35;margin-bottom:12px}
.cta-band p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.84);max-width:560px}
.cta-band__actions{display:flex;flex-direction:column;gap:12px;align-items:stretch}
.audience{display:flex;flex-wrap:wrap;gap:9px;margin-top:20px}
.audience span{
  font-size:12.5px;padding:5px 13px;border-radius:999px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.24);color:#e8f4f0;
}

/* ---------- Footer ---------- */
.site-footer{background:#0f2723;color:#b9cdc7;padding:56px 0 26px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1.2fr;gap:40px;padding-bottom:38px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand strong{color:#fff;font-size:16px;font-weight:700}
.footer-about{font-size:13.6px;line-height:1.9;color:#9fb6b0;max-width:430px}
.footer-col h4{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.4px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{font-size:13.6px;color:#a9bfb9;transition:color .18s ease}
.footer-col ul li a:hover{color:#8fe0ca}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding-top:20px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:#8ba59f;
}

/* ---------- Responsive ---------- */
@media (max-width:1024px){
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .nav-actions .btn{display:none}
  .hero-shell__inner{grid-template-columns:1fr;gap:30px;padding:38px 32px 40px}
  .hero-panel{max-width:520px}
  .grid--4{grid-template-columns:repeat(2,1fr)}
  .grid--3{grid-template-columns:repeat(2,1fr)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .stats{grid-template-columns:repeat(2,1fr);padding:34px 30px}
  .cta-band{grid-template-columns:1fr;padding:38px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .section{padding:48px 0}
  .section-head{margin-bottom:26px}
  .section-desc{max-width:none}
  .scene-list{grid-template-columns:1fr}
  .grid--2{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .nav-wrap{height:62px;padding:0 16px}
  .brand__text small{display:none}
  .hero-shell__inner{padding:30px 20px 32px}
  .pill-row{margin:18px 0 22px}
  .hero-cta .btn{flex:1 1 100%}
  .grid--4,.grid--3,.news-grid,.steps{grid-template-columns:1fr}
  .stats{grid-template-columns:1fr;gap:20px;padding:28px 22px}
  .card{padding:20px}
  .scene-item{padding:18px}
  .cta-band{padding:30px 20px}
  .footer-bottom{flex-direction:column;gap:8px}
  .btn{padding:12px 18px;min-height:44px}
}