@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;500;700&family=Noto+Serif+JP:wght@700&display=swap');
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --black:#000000;--black2:#0a0a0a;--black3:#111111;
  --navy:#0d1117;--card:#161b22;--card-hover:#1c2333;
  --gold:#d4a843;--gold-l:#f5e6c8;--gold-d:#b8922e;
  --blue:#58a6ff;--blue-d:#2563eb;
  --text:#f0f0f0;--text2:#c9d1d9;--text3:#8b949e;
  --border:#21262d;--border-l:#30363d;
  --green:#3fb950;--green-bg:rgba(63,185,80,.12);
  --amber:#d29922;--amber-bg:rgba(210,153,34,.12);
  --purple:#bc8cff;--purple-bg:rgba(188,140,255,.12);
  --red:#f85149;--red-bg:rgba(248,81,73,.12);
  --r:10px;--r-sm:6px;--max:960px;
  --glow:0 0 20px rgba(88,166,255,.1);
}
body{font-family:'Noto Sans JP',sans-serif;background:var(--black);color:var(--text);font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{display:block;max-width:100%}

/* ===== HEADER ===== */
.hdr{background:var(--black2);border-bottom:1px solid var(--border);padding:0 24px;height:64px;display:flex;align-items:center;position:sticky;top:0;z-index:100;backdrop-filter:blur(16px);background:rgba(0,0,0,.85)}
.header-inner{max-width:var(--max);margin:0 auto;width:100%;display:flex;align-items:center;gap:20px}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-svg{height:32px;width:auto}
.nav{display:flex;gap:0;margin-left:auto;align-items:center}
.nav a{font-size:13px;padding:6px 11px;color:var(--text3);font-weight:500;white-space:nowrap;border-radius:var(--r-sm);transition:all .15s}
.nav a:hover{color:var(--text);background:var(--card)}
.nav a.active{color:var(--gold);font-weight:700}
.nav .nav-btn{background:linear-gradient(135deg,var(--gold),var(--gold-d));color:var(--black)!important;padding:7px 16px;border-radius:20px;font-size:12px;font-weight:700;margin-left:8px;box-shadow:0 2px 8px rgba(212,168,67,.25)}
.nav .nav-btn:hover{opacity:.9}
.hamburger{display:none;background:none;border:1px solid var(--border-l);border-radius:var(--r-sm);cursor:pointer;padding:8px;margin-left:auto;flex-shrink:0}
.hamburger span{display:block;width:18px;height:1.5px;background:var(--text);margin:4px 0;transition:.2s}
.hamburger.open span:nth-child(1){transform:rotate(45deg) translate(4px,6px)}
.hamburger.open span:nth-child(2){opacity:0}
.hamburger.open span:nth-child(3){transform:rotate(-45deg) translate(4px,-6px)}
.mobile-menu{display:none;position:fixed;top:64px;left:0;right:0;bottom:0;background:rgba(0,0,0,.98);z-index:99;flex-direction:column;padding:1.5rem;gap:8px;overflow-y:auto}
.mobile-menu.open{display:flex}
.mobile-menu a{font-size:16px;font-weight:500;padding:14px 18px;border-radius:var(--r);border:1px solid var(--border-l);color:var(--text);transition:background .12s}
.mobile-menu a:hover{background:var(--card)}

/* ===== HERO ===== */
.hero{padding:72px 24px 64px;max-width:860px;margin:0 auto;text-align:center;position:relative}
.hero-tag{display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:700;padding:4px 14px;border-radius:99px;background:rgba(212,168,67,.1);color:var(--gold);border:1px solid rgba(212,168,67,.3);margin-bottom:24px;letter-spacing:.06em}
.hero-title{font-family:'Noto Serif JP',serif;font-size:46px;font-weight:700;line-height:1.3;margin-bottom:20px;color:#fff;letter-spacing:.02em}
.hero-title span{background:linear-gradient(135deg,var(--gold),var(--gold-l));-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}
.hero-desc{font-size:17px;color:var(--text2);line-height:1.9;max-width:600px;margin:0 auto 36px}
.hero-cats{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.hero-cat{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:700;padding:8px 18px;border-radius:99px;border:1.5px solid var(--border-l);color:var(--text2);transition:all .2s;background:var(--card)}
.hero-cat:hover{border-color:var(--gold);color:var(--gold);background:rgba(212,168,67,.08)}

/* ===== DIVIDER ===== */
.divider{height:1px;background:var(--border);max-width:var(--max);margin:0 auto}

/* ===== SECTION ===== */
.section{padding:52px 24px;max-width:var(--max);margin:0 auto}
.section-head{display:flex;align-items:baseline;gap:14px;margin-bottom:28px}
.section-title{font-size:21px;font-weight:700;color:#fff}
.section-title span{font-size:13px;font-weight:400;color:var(--text3);margin-left:4px}
.section-link{font-size:13px;color:var(--gold);margin-left:auto;font-weight:500}
.section-link:hover{text-decoration:underline}

/* ===== PAGE HEADER ===== */
.page-header{background:var(--black2);border-bottom:1px solid var(--border);padding:40px 24px 36px}
.page-header-inner{max-width:var(--max);margin:0 auto}
.breadcrumb{font-size:13px;color:var(--text3);margin-bottom:12px}
.breadcrumb a{color:var(--gold)}
.breadcrumb a:hover{text-decoration:underline}
.page-header-title{font-size:28px;font-weight:700;color:#fff}
.page-header-desc{font-size:15px;color:var(--text2);margin-top:8px}

/* ===== FILTER BAR (検索・絞り込み) ===== */
.filter-bar{background:var(--black2);border-bottom:1px solid var(--border);padding:16px 24px}
.filter-inner{max-width:var(--max);margin:0 auto;display:flex;gap:12px;align-items:center}
.search-box{position:relative;flex:1;max-width:400px}
.search-icon{position:absolute;left:12px;top:50%;transform:translateY(-50%);color:var(--text3)}
.search-input{width:100%;background:var(--card);border:1px solid var(--border-l);border-radius:var(--r);padding:10px 12px 10px 40px;color:var(--text);font-size:14px;outline:none;transition:border-color .15s}
.search-input:focus{border-color:var(--gold)}
.search-input::placeholder{color:var(--text3)}
.filter-group{display:flex;gap:10px;align-items:center}
.filter-select{background:var(--card);border:1px solid var(--border-l);border-radius:var(--r-sm);padding:8px 12px;color:var(--text);font-size:13px;outline:none;cursor:pointer}
.filter-select:focus{border-color:var(--gold)}
.filter-count{font-size:13px;color:var(--text3);font-weight:700}
.filter-tags{max-width:var(--max);margin:12px auto 0;display:flex;gap:6px;flex-wrap:wrap}
.tag-filter-btn{background:var(--card);border:1px solid var(--border-l);border-radius:99px;padding:4px 14px;font-size:12px;color:var(--text3);cursor:pointer;transition:all .15s;font-family:inherit}
.tag-filter-btn:hover{border-color:var(--gold);color:var(--gold)}
.tag-filter-btn.active{background:var(--gold);color:var(--black);border-color:var(--gold);font-weight:700}
.tag-count{font-size:10px;opacity:.7;margin-left:2px}

/* ===== STUDY LIST ===== */
.study-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.study-item{display:flex;align-items:center;gap:14px;padding:16px 18px;border:1px solid var(--border);border-radius:var(--r);transition:all .18s;background:var(--card)}
.study-item:hover{border-color:var(--blue);box-shadow:var(--glow);transform:translateY(-1px);background:var(--card-hover)}
.study-item.hidden{display:none}
.study-num{font-size:13px;font-weight:700;color:var(--text3);width:24px;flex-shrink:0;text-align:center}
.study-body{flex:1;min-width:0}
.study-title{font-size:14px;font-weight:700;color:var(--text);line-height:1.5}
.study-item:hover .study-title{color:var(--gold)}
.study-desc{font-size:12px;color:var(--text3);margin-top:2px}
.study-tags{display:flex;gap:4px;flex-wrap:wrap;margin-top:6px}
.study-tag{font-size:10px;color:var(--blue);background:rgba(88,166,255,.08);padding:1px 8px;border-radius:99px}
.study-badge{font-size:10px;font-weight:700;padding:2px 8px;border-radius:99px;flex-shrink:0;white-space:nowrap}
.lv-1{background:rgba(63,185,80,.15);color:var(--green)}
.lv-2{background:rgba(210,153,34,.15);color:var(--amber)}
.lv-3{background:rgba(248,81,73,.15);color:var(--red)}

/* ===== TAG LIST ===== */
.tag-list{display:flex;gap:6px;flex-wrap:wrap}
.tag-item{font-size:12px;color:var(--blue);background:rgba(88,166,255,.08);border:1px solid rgba(88,166,255,.15);padding:2px 12px;border-radius:99px;transition:all .15s}
.tag-item:hover{background:rgba(88,166,255,.15);border-color:var(--blue)}

/* ===== BLOG CARDS ===== */
.blog-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.blog-card{border:1px solid var(--border);border-radius:12px;overflow:hidden;transition:all .18s;background:var(--card);display:block}
.blog-card:hover{border-color:var(--border-l);box-shadow:0 4px 24px rgba(0,0,0,.4);transform:translateY(-2px)}
.blog-card-img{height:160px;background:var(--black2);display:flex;align-items:center;justify-content:center;font-size:48px;border-bottom:1px solid var(--border);overflow:hidden}
.blog-card-img img{width:100%;height:100%;object-fit:cover}
.blog-card-body{padding:16px}
.blog-cat{font-size:11px;font-weight:700;padding:2px 10px;border-radius:99px;display:inline-block;margin-bottom:8px}
.cat-stock{background:rgba(88,166,255,.12);color:var(--blue)}
.cat-fx{background:var(--green-bg);color:var(--green)}
.cat-futures{background:var(--amber-bg);color:var(--amber)}
.cat-crypto{background:var(--purple-bg);color:var(--purple)}
.cat-option{background:var(--red-bg);color:var(--red)}
.blog-title{font-size:14px;font-weight:700;color:var(--text);line-height:1.6;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.blog-card:hover .blog-title{color:var(--gold)}
.blog-meta{font-size:12px;color:var(--text3)}

/* ===== DAILY ===== */
.daily-wrap{background:var(--card);border:1px solid var(--border);border-radius:14px;padding:28px 32px;box-shadow:0 4px 24px rgba(0,0,0,.3)}
.daily-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.daily-item{background:rgba(255,255,255,.02);border:1px solid var(--border);border-radius:8px;padding:12px 16px;display:flex;align-items:flex-start;gap:10px}
.daily-dot{width:6px;height:6px;border-radius:50%;background:var(--gold);flex-shrink:0;margin-top:6px;box-shadow:0 0 6px rgba(212,168,67,.4)}
.daily-text{font-size:13px;color:var(--text2);line-height:1.6}

/* ===== LINK COLLECTION ===== */
.link-cats{display:flex;gap:8px;margin-bottom:24px;flex-wrap:wrap}
.link-cat-btn{font-size:12px;font-weight:700;padding:6px 16px;border-radius:99px;border:1.5px solid var(--border-l);color:var(--text3);cursor:pointer;transition:all .15s;background:none;font-family:inherit}
.link-cat-btn:hover,.link-cat-btn.active{background:var(--gold);color:var(--black);border-color:var(--gold)}
.link-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.link-item{display:flex;align-items:center;gap:12px;padding:14px 16px;border:1px solid var(--border);border-radius:var(--r);transition:all .18s;background:var(--card)}
.link-item:hover{border-color:var(--gold);background:rgba(212,168,67,.05)}
.link-icon{width:36px;height:36px;border-radius:8px;background:var(--black2);display:flex;align-items:center;justify-content:center;font-size:18px;flex-shrink:0;border:1px solid var(--border)}
.link-body{flex:1;min-width:0}
.link-name{font-size:13px;font-weight:700;color:var(--text)}
.link-item:hover .link-name{color:var(--gold)}
.link-desc{font-size:11px;color:var(--text3);margin-top:1px}
.link-arrow{font-size:12px;color:var(--text3)}

/* ===== SINGLE ARTICLE ===== */
.single-wrap{max-width:720px;margin:0 auto;padding:40px 24px 64px}
.single-header{margin-bottom:32px}
.single-title{font-family:'Noto Serif JP',serif;font-size:30px;font-weight:700;line-height:1.5;color:#fff;margin:14px 0 16px}
.single-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--text3)}
.single-eyecatch{border-radius:12px;overflow:hidden;margin-bottom:36px;border:1px solid var(--border)}
.single-eyecatch img{width:100%;max-height:300px;object-fit:cover}
.entry-content{font-size:16px;line-height:2;color:var(--text2)}
.entry-content h2{font-size:22px;font-weight:700;color:#fff;margin:2.5rem 0 1rem;padding:.75rem 1.25rem;background:var(--card);border-left:4px solid var(--gold);border-radius:0 var(--r-sm) var(--r-sm) 0}
.entry-content h3{font-size:18px;font-weight:700;color:var(--text);margin:2rem 0 .75rem;padding-bottom:.5rem;border-bottom:2px solid var(--border)}
.entry-content p{margin-bottom:1.4rem}
.entry-content ul,.entry-content ol{margin:0 0 1.4rem 1.5rem}
.entry-content li{margin-bottom:.5rem}
.entry-content img{border-radius:var(--r);margin:1.5rem auto;border:1px solid var(--border)}
.entry-content blockquote{background:var(--card);border-left:4px solid var(--gold);padding:1rem 1.5rem;margin:1.5rem 0;border-radius:0 var(--r-sm) var(--r-sm) 0;color:var(--text2);font-style:italic}
.entry-content a{color:var(--gold);text-decoration:underline}
.entry-content strong{font-weight:700;color:#fff}
.entry-content table{width:100%;border-collapse:collapse;margin:1.5rem 0;font-size:14px}
.entry-content th{background:var(--card);padding:10px 14px;text-align:left;border:1px solid var(--border);font-weight:700;color:#fff}
.entry-content td{padding:10px 14px;border:1px solid var(--border);color:var(--text2)}
.entry-content tr:nth-child(even) td{background:var(--card)}
.article-tags{margin:2rem 0;padding:1.5rem;background:var(--card);border-radius:var(--r);border:1px solid var(--border)}
.article-tags-label{font-size:12px;font-weight:700;color:var(--text3);margin-bottom:10px;text-transform:uppercase;letter-spacing:.08em}
.post-nav{display:flex;gap:1rem;margin-top:2.5rem;flex-wrap:wrap}
.post-nav a{font-size:13px;padding:10px 20px;border:1px solid var(--border);border-radius:var(--r-sm);background:var(--card);color:var(--text2);transition:all .12s;flex:1;min-width:0}
.post-nav a:hover{border-color:var(--gold);color:var(--gold)}
.related{margin-top:3rem}
.related-title{font-size:18px;font-weight:700;color:#fff;margin-bottom:16px;padding-bottom:10px;border-bottom:2px solid var(--border)}

/* ===== SNS SHARE ===== */
.share-box{margin:2.5rem 0;padding:1.5rem;background:var(--card);border:1px solid var(--border);border-radius:var(--r)}
.share-label{font-size:13px;font-weight:700;color:var(--text3);margin-bottom:12px;text-align:center}
.share-buttons{display:flex;justify-content:center;gap:10px;flex-wrap:wrap}
.share-btn{display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:var(--r-sm);font-size:13px;font-weight:700;transition:all .15s;color:#fff}
.share-btn:hover{opacity:.85;transform:translateY(-1px)}
.share-x{background:#000;border:1px solid var(--border-l)}
.share-x:hover{background:#1a1a1a}
.share-fb{background:#1877f2}
.share-hatena{background:#00a4de}
.share-insta{background:linear-gradient(45deg,#f09433,#e6683c,#dc2743,#cc2366,#bc1888)}

/* ===== ADS ===== */
.ad-slot{margin:1.5rem auto;max-width:var(--max);text-align:center}
.ad-top-banner{padding:8px 24px;background:var(--black2);border-bottom:1px solid var(--border)}
.ad-label{display:block;font-size:10px;color:var(--text3);margin-bottom:4px;letter-spacing:.06em}
.ad-content{min-height:60px;display:flex;align-items:center;justify-content:center}
.ad-placeholder{color:var(--border-l);font-size:11px;padding:20px;border:1px dashed var(--border);border-radius:var(--r-sm);width:100%}
.ad-banner .ad-placeholder{min-height:90px}
.ad-rectangle .ad-placeholder{min-height:250px;max-width:336px;margin:0 auto}
.ad-infeed{margin:2rem auto;max-width:var(--max)}
.ad-infeed .ad-placeholder{min-height:120px}

/* ===== PAGINATION ===== */
.pagination{display:flex;justify-content:center;gap:8px;margin-top:2.5rem;flex-wrap:wrap}
.pagination a,.pagination span{display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--border);font-size:14px;font-weight:500;color:var(--text2);transition:all .12s;background:var(--card)}
.pagination a:hover{border-color:var(--gold);color:var(--gold)}
.pagination .current{background:linear-gradient(135deg,var(--gold),var(--gold-d));color:var(--black);border-color:var(--gold)}

/* ===== FOOTER ===== */
.ftr{border-top:1px solid var(--border);padding:48px 24px 28px;background:var(--black)}
.ftr-inner{max-width:var(--max);margin:0 auto;display:grid;grid-template-columns:repeat(3,1fr);gap:40px;margin-bottom:32px}
.ftr-col-title{font-size:12px;font-weight:700;color:var(--gold);letter-spacing:.08em;text-transform:uppercase;margin-bottom:14px}
.ftr-links{display:flex;flex-direction:column;gap:8px}
.ftr-links a{font-size:13px;color:var(--text2);transition:color .12s}
.ftr-links a:hover{color:var(--gold)}
.ftr-social{display:flex;gap:8px}
.ftr-social-btn{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;border-radius:50%;background:var(--card);border:1px solid var(--border-l);color:var(--text2);transition:all .15s}
.ftr-social-btn:hover{color:var(--gold);border-color:var(--gold);background:rgba(212,168,67,.08)}
.ftr-bottom{max-width:var(--max);margin:0 auto;padding-top:20px;border-top:1px solid var(--border);display:flex;align-items:center;justify-content:space-between}
.ftr-logo{display:flex;align-items:center;gap:8px}
.ftr-copy{font-size:12px;color:var(--text3)}

/* ===== 404 ===== */
.not-found{text-align:center;padding:80px 24px}
.not-found h1{font-size:80px;font-weight:700;color:var(--border-l);margin-bottom:16px}
.not-found h2{font-size:24px;font-weight:700;color:#fff;margin-bottom:12px}
.not-found p{color:var(--text2);margin-bottom:28px}
.btn-primary{display:inline-flex;align-items:center;gap:8px;background:linear-gradient(135deg,var(--gold),var(--gold-d));color:var(--black);font-size:14px;font-weight:700;padding:12px 28px;border-radius:var(--r);transition:opacity .15s;box-shadow:0 2px 12px rgba(212,168,67,.25)}
.btn-primary:hover{opacity:.9}

/* ===== RESPONSIVE ===== */
@media(max-width:768px){
  .nav a:not(.nav-btn){display:none}
  .hamburger{display:block}
  .hero-title{font-size:28px}
  .hero-desc{font-size:15px}
  .study-grid{grid-template-columns:1fr}
  .blog-grid{grid-template-columns:1fr}
  .daily-grid{grid-template-columns:1fr}
  .link-grid{grid-template-columns:1fr}
  .ftr-inner{grid-template-columns:1fr;gap:24px}
  .ftr-bottom{flex-direction:column;gap:12px;text-align:center}
  .single-title{font-size:22px}
  .filter-inner{flex-direction:column}
  .search-box{max-width:100%}
  .share-btn span{display:none}
}