:root{
      --theme:#0B3D91;
      --theme-dark:#082c69;
      --accent:#d61f69;
      --ink:#172033;
      --muted:#667085;
      --line:#e6eaf0;
      --soft:#f5f7fa;
      --white:#fff;
      --shadow:0 16px 42px rgba(23,32,51,.09);
      --radius:18px;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth}
    body{margin:0;color:var(--ink);background:#fff;font-family:-apple-system,BlinkMacSystemFont,"Hiragino Kaku Gothic ProN","Yu Gothic",Meiryo,sans-serif;line-height:1.7}
    body.drawer-lock{overflow:hidden}
    a{color:inherit;text-decoration:none}
    img{max-width:100%;display:block}
    button{font:inherit}
    .container{width:min(1180px,calc(100% - 40px));margin:0 auto}

    .topbar{background:#f4f6f9;color:#667085;font-size:12px;border-bottom:1px solid #e8ebf0}
    .topbar-inner{min-height:34px;display:flex;align-items:center;justify-content:space-between;gap:20px}
    .topbar-contact{display:flex;gap:18px}
    .topbar a:hover{color:var(--theme)}

    .header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.96);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
    .header-inner{height:78px;display:flex;align-items:center;gap:28px}
    .logo{display:inline-flex;align-items:center;gap:10px;white-space:nowrap;font-weight:800;color:var(--theme)}
    .logo img{width:34px;height:34px;object-fit:contain}
    .logo span{font-size:18px;letter-spacing:.02em}
    .main-nav{flex:1}
    .nav-list{display:flex;align-items:center;justify-content:center;gap:4px;list-style:none;margin:0;padding:0}
    .nav-item{position:relative}
    .nav-link{display:flex;align-items:center;min-height:48px;padding:0 13px;color:#344054;font-size:14px;font-weight:700;cursor:pointer}
    .nav-link:hover,.nav-item:focus-within>.nav-link{color:var(--theme)}
    .has-panel>.nav-link:after{content:"";width:6px;height:6px;margin-left:7px;border-right:1px solid currentColor;border-bottom:1px solid currentColor;transform:rotate(45deg) translateY(-2px)}
    .dropdown-panel,.mega-menu{position:absolute;top:calc(100% + 1px);left:50%;transform:translateX(-50%);visibility:hidden;opacity:0;pointer-events:none;background:var(--white);border:1px solid var(--line);box-shadow:var(--shadow);transition:.2s ease;z-index:60}
    .dropdown-panel{width:300px;padding:14px;border-radius:0 0 16px 16px}
    .mega-menu{width:760px;padding:22px;border-radius:0 0 20px 20px}
    .has-panel:hover>.dropdown-panel,.has-panel:focus-within>.dropdown-panel,.has-panel:hover>.mega-menu,.has-panel:focus-within>.mega-menu{visibility:visible;opacity:1;pointer-events:auto}
    .has-panel:after{content:"";position:absolute;left:0;right:0;top:100%;height:10px}
    .dropdown-list{display:grid;gap:3px}
    .dropdown-list a{padding:10px;border-radius:9px;font-size:13px}
    .dropdown-list a:hover{background:var(--soft);color:var(--theme)}
    .panel-entry{display:flex;justify-content:space-between;border-top:1px solid var(--line);margin-top:8px;padding:13px 10px 2px;color:var(--theme);font-size:13px;font-weight:700}
    .mega-heading{display:flex;align-items:center;justify-content:space-between;gap:18px;margin-bottom:16px}
    .mega-heading strong{font-size:15px}
    .mega-heading a,.mega-heading span{color:var(--muted);font-size:12px}
    .mega-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
    .mega-card{display:flex;gap:11px;padding:11px;border:1px solid #edf0f4;border-radius:12px;background:#fff}
    .mega-card:hover{border-color:#b9c9e5;background:#f8faff}
    .mega-card>img{width:48px;height:48px;object-fit:cover;border-radius:9px;background:#eef2f7;flex:0 0 auto}
    .mega-card strong{display:block;font-size:13px;line-height:1.4}
    .mega-card p,.mega-card small{display:block;margin:3px 0 0;color:var(--muted);font-size:11px;line-height:1.45}
    .mega-categories{display:flex;flex-wrap:wrap;gap:7px;margin-bottom:16px}
    .mega-categories a{padding:5px 10px;border-radius:99px;background:var(--soft);color:var(--theme);font-size:11px}
    .header-btns{display:flex;align-items:center;gap:12px;font-size:13px}
    .header-btns>span{color:var(--theme);font-weight:700}
    .header-btns>a{padding:10px 15px;border-radius:9px;background:var(--theme);color:#fff;font-weight:700}
    .header-btns>a:hover{background:var(--theme-dark)}
    .hamburger{display:none;width:42px;height:42px;padding:9px;border:1px solid var(--line);border-radius:10px;background:#fff;cursor:pointer}
    .hamburger span{display:block;width:22px;height:2px;margin:5px auto;background:var(--ink);transition:.2s}
    .hamburger.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
    .hamburger.active span:nth-child(2){opacity:0}
    .hamburger.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

    .drawer-overlay{position:fixed;inset:0;background:rgba(10,20,40,.42);opacity:0;visibility:hidden;transition:.25s;z-index:80}
    .drawer-overlay.open{opacity:1;visibility:visible}
    .mobile-drawer{position:fixed;top:0;right:0;width:min(390px,88vw);height:100vh;overflow:auto;background:#fff;transform:translateX(100%);transition:.3s ease;z-index:90}
    .mobile-drawer.open{transform:translateX(0)}
    .drawer-head{display:flex;align-items:center;gap:12px;padding:22px;border-bottom:1px solid var(--line);color:var(--theme);font-weight:800}
    .drawer-head>a{margin-left:auto;padding:7px 11px;border-radius:8px;background:var(--theme);color:#fff;font-size:12px}
    .drawer-close{border:0;background:transparent;font-size:28px;line-height:1;cursor:pointer;color:var(--muted)}
    .drawer-menu{padding:12px 22px 30px}
    .drawer-link,.drawer-toggle{display:block;width:100%;padding:15px 0;border:0;border-bottom:1px solid var(--line);background:transparent;text-align:left;color:var(--ink);font-weight:700;cursor:pointer}
    .drawer-toggle:after{content:"+";float:right;color:var(--theme);font-size:20px;font-weight:400}
    .drawer-toggle.active:after{content:"−"}
    .drawer-submenu{display:none;padding:5px 0 8px 14px;border-bottom:1px solid var(--line)}
    .drawer-submenu.open{display:block}
    .drawer-submenu a{display:block;padding:8px 0;color:var(--muted);font-size:13px}

    .article-page{background:linear-gradient(180deg,#f7f8fb 0,#fff 360px);padding:58px 0 90px}
    .article-layout{display:grid;grid-template-columns:minmax(0,780px) 280px;gap:42px;align-items:start}
    .article-main{min-width:0}
    .article-kicker{display:inline-flex;align-items:center;gap:8px;color:var(--accent);font-size:12px;font-weight:800;letter-spacing:.12em}
    .article-kicker:before{content:"";width:24px;height:2px;background:var(--accent)}
    .article-title{margin:15px 0 18px;font-size:clamp(30px,4vw,52px);line-height:1.25;letter-spacing:-.03em}
    .article-meta{display:flex;flex-wrap:wrap;gap:14px;color:var(--muted);font-size:13px;padding-bottom:24px;border-bottom:1px solid var(--line)}
    .article-cover{width:100%;max-height:430px;object-fit:cover;border-radius:var(--radius);margin:28px 0;box-shadow:0 12px 30px rgba(23,32,51,.1);background:#eef2f7}
    .article-body{min-width:0;max-width:100%;overflow-x:auto;font-size:16px;line-height:2}
    .article-body h2{margin:38px 0 14px;padding-left:15px;border-left:4px solid var(--accent);font-size:25px;line-height:1.4}
    .article-body h3{margin:28px 0 10px;font-size:20px}
    .article-body p{margin:0 0 20px}
    .article-body img,.article-body table{max-width:100%;height:auto}
    .article-tags{display:flex;flex-wrap:wrap;gap:8px;margin:28px 0}
    .article-tags a{padding:6px 11px;border-radius:99px;background:#fceaf2;color:#a91552;font-size:12px}
    .article-nav{display:grid;grid-template-columns:1fr 1fr;gap:12px;margin-top:38px}
    .article-nav a{padding:17px;border:1px solid var(--line);border-radius:12px;background:#fff}
    .article-nav a:hover{border-color:#aabddd;color:var(--theme)}
    .article-nav small{display:block;color:var(--muted);font-size:11px;margin-bottom:5px}
    .article-nav strong{font-size:13px}
    .article-sidebar{position:sticky;top:105px;display:grid;gap:16px}
    .side-card{padding:22px;border:1px solid var(--line);border-radius:16px;background:#fff;box-shadow:0 8px 24px rgba(23,32,51,.05)}
    .side-card h2{margin:0 0 13px;font-size:16px}
    .side-card p{margin:0;color:var(--muted);font-size:13px}
    .side-cta{display:block;margin-top:18px;padding:11px;text-align:center;border-radius:9px;background:var(--theme);color:#fff;font-size:13px;font-weight:700}
    .like-section{margin-top:46px;padding-top:28px;border-top:1px solid var(--line)}
    .like-section h2{font-size:22px}
    .like-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
    .like-card{overflow:hidden;border:1px solid var(--line);border-radius:13px;background:#fff}
    .like-card img{width:100%;height:120px;object-fit:cover;background:#eef2f7}
    .like-card span{display:block;padding:12px;font-size:13px;font-weight:700;line-height:1.5}

    .footer{padding:58px 0 22px;background:#101827;color:#d8e0ed}
    .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
    .footer .logo{color:#fff}
    .footer-brand p{max-width:330px;margin:18px 0 0;color:#9aa8bd;font-size:12px;line-height:1.9}
    .footer h2{margin:0 0 15px;color:#fff;font-size:14px}
    .footer-links{display:grid;gap:8px}
    .footer-links a,.footer-contact a{color:#aebbd0;font-size:12px}
    .footer-links a:hover,.footer-contact a:hover{color:#fff}
    .footer-contact{display:grid;gap:9px}
    .footer-social{color:#aebbd0;font-size:12px}
    .footer-bottom{display:flex;justify-content:space-between;gap:20px;margin-top:42px;padding-top:18px;border-top:1px solid rgba(255,255,255,.13);color:#8290a5;font-size:11px}

    @media(max-width:980px){
      .main-nav{display:none}
      .hamburger{display:block}
      .header-btns>span{display:none}
      .article-layout{grid-template-columns:minmax(0,1fr)}
      .article-sidebar{position:static;grid-template-columns:repeat(2,1fr)}
      .footer-grid{grid-template-columns:repeat(2,1fr)}
    }
    @media(max-width:620px){
      .container{width:min(100% - 28px,1180px)}
      .topbar-inner{padding:7px 0;align-items:flex-start}
      .topbar-contact{display:grid;gap:0;text-align:right}
      .header-inner{height:68px;gap:10px}
      .header-btns{margin-left:auto}
      .header-btns>a{padding:9px 10px;font-size:11px}
      .article-page{padding:38px 0 60px}
      .article-title{font-size:31px}
      .article-layout{display:block}
      .article-sidebar{display:grid;grid-template-columns:1fr;margin-top:28px}
      .article-nav{grid-template-columns:1fr}
      .like-grid{grid-template-columns:1fr}
      .like-card{display:grid;grid-template-columns:105px 1fr}
      .like-card img{height:100%}
      .footer{padding-top:42px}
      .footer-grid{grid-template-columns:1fr;gap:28px}
      .footer-bottom{display:grid;gap:5px}
    }