*{margin:0;padding:0;box-sizing:border-box}
:root{--primary:#1a2b4a;--accent:#2563eb;--bg:#f9fafb;--card:#fff;--text:#1e293b;--muted:#6b7280;--border:#e5e7eb;--radius:10px}
body{font-family:"Hiragino Kaku Gothic ProN","Noto Sans JP","Yu Gothic",sans-serif;color:var(--text);background:var(--bg);line-height:1.85;-webkit-font-smoothing:antialiased}
a{color:var(--accent);text-decoration:none}

/* NAV */
.nav{background:#fff;border-bottom:1px solid var(--border);position:sticky;top:0;z-index:100}
.nav-inner{max-width:960px;margin:0 auto;padding:13px 20px;display:flex;align-items:center;justify-content:space-between}
.logo{font-size:20px;font-weight:800;color:var(--primary)}
.logo span{color:var(--accent)}
.nav-links{display:flex;gap:24px;font-size:13.5px;color:var(--muted)}
.nav-links a{color:var(--muted);transition:.2s}
.nav-links a:hover{color:var(--accent)}

/* HERO */
.hero{background:#fff;border-bottom:1px solid var(--border);padding:56px 20px 52px;text-align:center}
.hero-inner{max-width:640px;margin:0 auto}
.hero-tag{display:inline-block;background:#eff6ff;color:var(--accent);font-size:12px;font-weight:700;padding:5px 14px;border-radius:50px;margin-bottom:18px}
.hero h1{font-size:clamp(22px,4vw,32px);font-weight:800;line-height:1.5;color:var(--primary);margin-bottom:14px}
.hero p{font-size:15px;color:var(--muted);max-width:520px;margin:0 auto;line-height:1.9}

/* NOTICE */
.notice{background:#fffbeb;border-bottom:1px solid #fde68a;padding:11px 20px;text-align:center;font-size:12px;color:#92400e;line-height:1.7}

/* MAIN CONTENT */
.main{max-width:960px;margin:0 auto;padding:40px 20px 60px;display:grid;grid-template-columns:1fr 300px;gap:36px}

/* ARTICLES */
.articles h2{font-size:16px;font-weight:700;color:var(--primary);margin-bottom:20px;padding-bottom:10px;border-bottom:2px solid var(--primary)}
.article-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:24px;margin-bottom:16px;transition:.15s;position:relative}
.article-card:hover{border-color:var(--accent);box-shadow:0 2px 12px rgba(37,99,235,.06)}
.stretched-link::after{position:absolute;top:0;right:0;bottom:0;left:0;z-index:1;content:""}
.article-meta{display:flex;gap:10px;align-items:center;margin-bottom:10px;flex-wrap:wrap}
.article-cat{font-size:11px;font-weight:700;padding:3px 10px;border-radius:4px;line-height:1}
.cat-basic{background:#eff6ff;color:#2563eb}
.cat-analysis{background:#f0fdf4;color:#16a34a}
.cat-risk{background:#fef2f2;color:#dc2626}
.cat-tax{background:#faf5ff;color:#7c3aed}
.cat-mental{background:#fff7ed;color:#ea580c}
.cat-market{background:#ecfeff;color:#0891b2}
.article-date{font-size:11.5px;color:#9ca3af}
.article-card h3{font-size:16px;font-weight:700;color:var(--primary);margin-bottom:8px;line-height:1.55}
.article-card h3 a{color:var(--primary)}
.article-card h3 a:hover{color:var(--accent)}
.article-card>p{font-size:13.5px;color:var(--muted);line-height:1.85;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.read-more{display:inline-block;margin-top:10px;font-size:13px;font-weight:600;color:var(--accent)}

/* SIDEBAR */
.sidebar h3{font-size:14px;font-weight:700;color:var(--primary);margin-bottom:14px;padding-bottom:8px;border-bottom:2px solid var(--primary)}
.sidebar-box{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:20px;margin-bottom:24px}
.sidebar-box p{font-size:13px;color:var(--muted);line-height:1.85}
.popular-list{list-style:none}
.popular-list li{padding:10px 0;border-bottom:1px solid var(--border);font-size:13.5px;display:flex;gap:10px;align-items:flex-start}
.popular-list li:last-child{border:none;padding-bottom:0}
.pop-num{flex-shrink:0;width:22px;height:22px;border-radius:5px;background:var(--primary);color:#fff;font-size:11px;font-weight:800;display:flex;align-items:center;justify-content:center}
.pop-num.n1{background:#2563eb}
.pop-num.n2{background:#3b82f6}
.pop-num.n3{background:#60a5fa}
.popular-list a{color:var(--text);font-weight:500;line-height:1.5}
.popular-list a:hover{color:var(--accent)}
.cat-list{list-style:none;display:flex;flex-wrap:wrap;gap:8px}
.cat-list li a{display:block;font-size:12.5px;padding:5px 13px;border-radius:6px;background:var(--bg);border:1px solid var(--border);color:var(--muted);font-weight:500;transition:.15s}
.cat-list li a:hover{border-color:var(--accent);color:var(--accent);background:#eff6ff}

/* ARTICLE FULL */
.article-full{display:none;background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:36px 32px}
.article-full.show{display:block}
.article-full .back-btn{font-size:13px;color:var(--accent);cursor:pointer;margin-bottom:20px;display:inline-flex;align-items:center;gap:4px;font-weight:600}
.article-full h1{font-size:22px;font-weight:800;color:var(--primary);line-height:1.55;margin-bottom:12px}
.article-full .meta-line{font-size:12.5px;color:#9ca3af;margin-bottom:28px;padding-bottom:18px;border-bottom:1px solid var(--border)}
.article-full h2{font-size:17px;font-weight:700;color:var(--primary);margin:32px 0 12px;padding-left:12px;border-left:3px solid var(--accent)}
.article-full p{font-size:14.5px;color:#374151;line-height:2;margin-bottom:16px}
.article-full .point-box{background:#eff6ff;border-radius:8px;padding:18px 20px;margin:20px 0;font-size:13.5px;color:#1e40af;line-height:1.9}
.article-full .warn-box{background:#fef2f2;border-radius:8px;padding:18px 20px;margin:20px 0;font-size:13.5px;color:#991b1b;line-height:1.9}

/* FOOTER */
.footer{background:#111827;color:rgba(255,255,255,.55);padding:48px 20px 24px}
.footer-inner{max-width:960px;margin:0 auto}
.footer-grid{display:grid;grid-template-columns:1.8fr 1fr 1fr;gap:36px;margin-bottom:36px}
.footer h5{color:#fff;font-size:13px;font-weight:700;margin-bottom:14px}
.footer p,.footer li,.footer a{font-size:12.5px;color:rgba(255,255,255,.45);line-height:1.85}
.footer a:hover{color:#fff}
.footer ul{list-style:none}
.footer ul li{margin-bottom:6px}
.footer-brand .logo{margin-bottom:8px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:20px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;font-size:11.5px;color:rgba(255,255,255,.3)}

/* LEGAL PAGES */
.legal-page{max-width:960px;margin:0 auto;padding:40px 20px 60px}
.legal-box{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:36px 32px}
.legal-box h1{font-size:20px;font-weight:800;color:var(--primary);margin-bottom:16px}
.legal-box h2{font-size:15px;font-weight:700;color:var(--primary);margin:24px 0 8px}
.legal-box p{font-size:13.5px;color:var(--muted);line-height:2;margin-bottom:10px}
.legal-table{width:100%;border-collapse:collapse;margin:16px 0}
.legal-table th,.legal-table td{text-align:left;padding:12px 14px;font-size:13.5px;border-bottom:1px solid var(--border);line-height:1.7}
.legal-table th{background:var(--bg);font-weight:700;color:var(--primary);width:160px;white-space:nowrap}
.legal-table td{color:var(--muted)}

/* CONTACT */
.contact-card{background:var(--bg);border:1px solid var(--border);border-radius:8px;padding:18px 20px;margin-top:16px}
.contact-card .row{display:flex;flex-wrap:wrap;gap:10px 18px;margin:8px 0;font-size:13.5px;color:var(--muted)}
.contact-card .row strong{color:var(--primary)}

/* RISK BANNER */
.risk-banner{background:#fef2f2;border:1px solid #fecaca;border-radius:var(--radius);padding:22px 24px;margin:40px 0 0}
.risk-banner p{font-size:12.5px;color:#991b1b;line-height:1.9;margin-bottom:4px}
.risk-banner p:last-child{margin:0}

/* Mobile Menu */
.mobile-menu-btn {
  display: none;
  background: none;
  border: none;
  font-size: 24px;
  color: var(--primary);
  cursor: pointer;
  padding: 5px;
}

@media(max-width:768px){
  .mobile-menu-btn {
    display: block;
  }
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    width: 100%;
    background: #fff;
    border-bottom: 1px solid var(--border);
    padding: 20px;
    gap: 16px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  }
  .nav-links.active {
    display: flex;
  }
  .main{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .legal-table th{width:120px}
}

.cookie-banner{position:fixed;left:0;right:0;bottom:0;z-index:200;background:rgba(17,24,39,.96);color:rgba(255,255,255,.9);backdrop-filter:saturate(180%) blur(8px);border-top:1px solid rgba(255,255,255,.1)}
.cookie-banner__inner{max-width:960px;margin:0 auto;padding:12px 20px;display:flex;gap:14px;align-items:center;justify-content:space-between}
.cookie-banner__text{font-size:12.5px;line-height:1.7;color:rgba(255,255,255,.85)}
.cookie-banner__link{color:#93c5fd;text-decoration:underline;text-underline-offset:3px}
.cookie-banner__link:hover{color:#bfdbfe}
.cookie-banner__actions{display:flex;gap:10px;flex-shrink:0}
.cookie-banner__btn{background:#2563eb;border:1px solid rgba(255,255,255,.12);color:#fff;border-radius:8px;padding:8px 12px;font-size:12.5px;font-weight:700;cursor:pointer}
.cookie-banner__btn:hover{background:#1d4ed8}

@media(max-width:768px){
  .cookie-banner__inner{flex-direction:column;align-items:flex-start}
  .cookie-banner__actions{width:100%}
  .cookie-banner__btn{width:100%;text-align:center}
}