:root{
    --forest:   #184A33;
    --forest-d: #0F3322;
    --leaf:     #8FBF1B;
    --leaf-d:   #6FA00F;
    --dune:     #EFE4C6;
    --dune-d:   #DDCB9E;
    --dune-l:   #FCF9F1;
    --sea:      #1F7A8C;
    --sea-l:    #4FA3B3;
    --sun:      #F5B400;
    --ink:      #1A1A1A;
    --white:    #FFFFFF;

    --tint-leaf:   #E9F2D9;
    --tint-sea:    #DCEEF1;
    --tint-sun:    #FDEFD2;
    --tint-forest: #E1E9E3;

    --font-display:'Zen Maru Gothic', sans-serif;
    --font-body:'Noto Sans JP', sans-serif;
    --font-label:'Zen Kaku Gothic New', sans-serif;
    --container: 1240px;
  }

  *{margin:0;padding:0;box-sizing:border-box;}
  html{scroll-behavior:smooth;overflow-x:hidden;}
  body{
    font-family:var(--font-body);
    font-size:16px;
    color:var(--ink);
    background:var(--dune-l);
    line-height:1.9;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
    width:100%;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  ul{list-style:none;}
  .container{max-width:var(--container);margin:0 auto;padding:0 24px;}

  /* ===== Main content ===== */
  .links-section{padding:70px 0 110px;}

  .links-intro{
    max-width:860px;margin:0 auto 56px;
    background:var(--white);border:1px solid var(--dune-d);
    border-radius:20px;padding:32px 38px;
    box-shadow:0 14px 30px rgba(15,51,34,.06);
    font-size:16.5px;line-height:2;color:var(--ink);
  }

  /* Category anchors */
  .cat-nav{
    max-width:860px;margin:0 auto 52px;
    display:flex;flex-wrap:wrap;gap:10px;
  }
  .cat-nav a{
    font-family:var(--font-label);font-weight:700;font-size:14px;
    padding:9px 20px;border-radius:999px;
    background:var(--tint-forest);color:var(--forest);
    border:1.5px solid var(--leaf-d);
    transition:background .2s, color .2s;
  }
  .cat-nav a::after{content:" ∨";font-size:12px;}
  .cat-nav a:hover{background:var(--forest);color:var(--white);}

  /* Section block */
  .link-block{
    max-width:860px;margin:0 auto 48px;
    scroll-margin-top:30px;
  }
  .link-block-head{
    display:flex;align-items:center;gap:14px;
    margin-bottom:22px;
  }
  .link-block-icon{
    flex:none;
    width:46px;height:46px;border-radius:14px;
    display:flex;align-items:center;justify-content:center;
    font-size:22px;
  }
  .icon-national{background:var(--tint-sea);}
  .icon-env{background:#D5EDD3;}
  .icon-pref{background:var(--tint-sun);}
  .icon-subsidy{background:#F5E0D6;}
  .icon-related{background:var(--tint-forest);}

  .link-block-head h2{
    font-family:var(--font-display);font-weight:900;
    font-size:clamp(18px,2.2vw,23px);color:var(--forest);
    line-height:1.4;
  }

  .link-cards{
    background:var(--white);
    border:1px solid var(--dune-d);
    border-radius:20px;
    overflow:hidden;
    box-shadow:0 14px 30px rgba(15,51,34,.06);
  }
  .link-item{
    display:flex;align-items:flex-start;gap:16px;
    padding:22px 28px;
    border-bottom:1px solid #EEE9DF;
    transition:background .18s;
    text-decoration:none;
    color:inherit;
  }
  .link-item:last-child{border-bottom:none;}
  .link-item:hover{background:var(--dune-l);}
  .link-item-body{flex:1;min-width:0;}
  .link-item-title{
    font-family:var(--font-label);font-weight:700;font-size:18px;
    color:var(--sea);line-height:1.5;
    display:flex;align-items:center;gap:8px;flex-wrap:wrap;
    margin-bottom:4px;
    text-decoration:underline;
    text-underline-offset:4px;
  }
  .link-item-desc{font-size:18px;color:var(--ink);line-height:1.8;}
  .link-arrow{display:none;}

  .link-block + .link-block{
    border-top:none;
  }

  /* ===== Footer ===== */
  footer.site-footer{background:var(--forest-d);color:var(--white);padding:56px 0 30px;}
  .footer-brand{display:flex;align-items:center;margin-bottom:30px;}
  .footer-brand strong{font-family:var(--font-display);color:var(--white);font-size:18px;}
  .footer-nav{
    display:flex;flex-wrap:wrap;gap:10px 28px;
    margin-bottom:30px;padding-bottom:30px;
    border-bottom:1px solid #2A5440;
  }
  .footer-nav a{font-size:15px;color:var(--white);transition:opacity .2s;}
  .footer-nav a:hover{opacity:.75;}
  .footer-bottom{
    font-size:13.5px;color:var(--white);
    text-align:center;display:flex;flex-direction:column;gap:6px;
  }
  .footer-bottom .footer-credit{font-size:12px;color:#9FB3A4;}
  .footer-bottom a{color:var(--white);}
  .footer-bottom a:hover{opacity:.75;}

  /* ===== Responsive ===== */
  @media (max-width:980px){
    nav.main-nav{position:fixed;inset:72px 0 0 0;background:var(--dune-l);z-index:99;
      transform:translateX(100%);transition:transform .25s ease;padding:24px;overflow-y:auto;}
    nav.main-nav.open{transform:translateX(0);}
    nav.main-nav ul{flex-direction:column;align-items:stretch;gap:4px;}
    nav.main-nav a{display:block;padding:15px 10px;font-size:17px;border-bottom:1px solid var(--dune-d);border-radius:0;}
    nav.main-nav a.nav-cta{margin:14px 0 0;text-align:center;border-bottom:none;border-radius:999px;}
    .nav-toggle{display:flex;}
  }
  @media (max-width:640px){
    .brand-text strong{font-size:16px;white-space:normal;}
    .header-inner{padding:14px 20px;}
    .brand{min-width:0;flex:1 1 auto;}
    .page-header{padding:44px 0 36px;}
    .links-section{padding:50px 0 80px;}
    .links-intro{padding:24px 20px;}
    .link-item{padding:18px 20px;gap:12px;}
  }