/*
 * Blockchain Research Institute (souken) sub-brand — /magazine/reports/.
 * Mock source of truth: docs/design/souken-reports-mock-v7.html (v7.3).
 * Loaded only on the reports category pages (see pm_souken_enqueue_assets).
 */
.souken-page{
  --sk-bg01:#EFEFF2;--sk-bg02:#232031;--sk-primary:#2638E6;--sk-ink:#232031;--sk-heading:#11162E;
  --sk-body-text:#2F3140;--sk-muted:#74727D;--sk-border:#DEDCE8;--sk-photo-bg:#EEF0F6;--sk-dark:#0A0E1A;
  --sk-font-en:'Inter',sans-serif;--sk-font-serif:'Shippori Mincho','Noto Serif JP',serif;
  margin:0;padding:0;font-size:15px;line-height:2;color:var(--sk-ink);
  font-family:"Inter","Noto Sans JP","Hiragino Kaku Gothic ProN",Meiryo,sans-serif;
  background:#fff;-webkit-font-smoothing:antialiased;
}
/* :where() keeps specificity at 0,0,1 so component classes can recolor links. */
:where(.souken-page) a{text-decoration:none;color:inherit;}
.souken-page img{max-width:100%;height:auto;display:block;}
.sk-inner{max-width:1080px;margin:0 auto;padding:0 36px;}

/* ==== magazine return strip ==== */
.sk-top-strip{background:#fff;border-bottom:1px solid var(--sk-border);padding:7px 36px;font-size:11px;color:var(--sk-muted);display:flex;gap:18px;}
.sk-top-strip .sk-back{color:var(--sk-primary);font-weight:600;}

/* ==== souken header ==== */
.sk-header{position:sticky;top:0;z-index:100;height:64px;background:#070A14;border-bottom:1px solid rgba(255,255,255,.08);}
.sk-header .sk-inner{display:flex;align-items:center;justify-content:space-between;height:100%;}
.sk-wordmark{display:flex;flex-direction:column;justify-content:center;font-family:var(--sk-font-serif);font-weight:700;font-size:18px;line-height:1.2;color:#fff;letter-spacing:.06em;}
.sk-wordmark small{font-family:var(--sk-font-en);font-size:10px;font-weight:600;letter-spacing:.16em;color:rgba(255,255,255,.55);display:block;line-height:1;margin-top:5px;text-transform:uppercase;}
.sk-header-link{display:inline-flex;align-items:center;font-size:12px;font-weight:700;color:#fff;border:1px solid rgba(255,255,255,.7);padding:8px 18px;}

/* ==== hero ==== */
.sk-hero{position:relative;overflow:hidden;padding:96px 0 104px;text-align:center;color:#fff;
  background:radial-gradient(ellipse at 50% -30%,rgba(102,91,166,.22),transparent 58%),#070A14;}
.sk-hero::before{content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,transparent 0 calc(50% - .5px),rgba(160,170,225,.06) calc(50% - .5px) calc(50% + .5px),transparent calc(50% + .5px) 100%);}
.sk-hero .sk-inner{position:relative;}
.sk-hero-title{font-family:var(--sk-font-serif);font-size:56px;line-height:1.25;font-weight:700;letter-spacing:.08em;margin:0;}
.sk-hero-rule{display:flex;align-items:center;justify-content:center;gap:26px;margin-top:30px;}
.sk-hero-rule::before,.sk-hero-rule::after{content:"";width:110px;height:1px;background:rgba(255,255,255,.24);}
.sk-hero-catch{font-family:var(--sk-font-serif);font-size:18px;letter-spacing:.2em;color:rgba(255,255,255,.86);}

/* ==== signup form (hero + plans; shares markup with article CTA) ==== */
.sk-signup{display:flex;gap:10px;max-width:480px;margin:46px auto 0;}
.sk-signup input[type="email"]{flex-grow:1;font-size:13.5px;padding:13px 16px;border:1px solid rgba(255,255,255,.35);background:rgba(255,255,255,.06);color:#fff;min-width:0;}
.sk-signup input[type="email"]::placeholder{color:rgba(255,255,255,.5);}
.sk-signup button{font-size:13px;font-weight:700;padding:13px 28px;border:1px solid #fff;background:#fff;color:var(--sk-dark);cursor:pointer;white-space:nowrap;}
.sk-signup button:disabled{opacity:.55;cursor:default;}
.sk-hero-note{margin-top:13px;font-size:11px;color:rgba(255,255,255,.55);line-height:1.8;}
.sk-hero-note a{text-decoration:underline;color:rgba(255,255,255,.7);}
.sk-hp{position:absolute;left:-9999px;top:-9999px;}
.sk-sent-box{max-width:480px;margin:46px auto 0;border:1px solid rgba(255,255,255,.3);padding:22px 26px;text-align:left;}
.sk-sent-box .sk-sent-h{font-family:var(--sk-font-serif);font-size:15px;font-weight:700;color:#fff;}
.sk-sent-box p{font-size:12px;color:rgba(255,255,255,.72);line-height:2;margin:8px 0 0;}
.sk-sent-box b{color:#fff;font-weight:600;}
.sk-form-error{margin-top:10px;font-size:11.5px;color:#ffb3b3;}

/* ==== featured ==== */
.sk-featured{padding:56px 0;}
.sk-featured-label{font-size:12px;font-weight:700;letter-spacing:.14em;color:var(--sk-primary);margin:0;}
.sk-featured-card{display:grid;grid-template-columns:440px 1fr;gap:40px;align-items:center;margin-top:18px;}
.sk-thumb{border:1px solid var(--sk-border);border-radius:8px;background:var(--sk-photo-bg);aspect-ratio:1200/630;overflow:hidden;display:flex;align-items:center;justify-content:center;font-size:11px;color:var(--sk-muted);}
.sk-thumb img{width:100%;height:100%;object-fit:cover;}
.sk-featured-card .sk-meta{font-size:12.5px;font-weight:700;color:var(--sk-primary);margin:0;}
.sk-featured-card .sk-meta span{color:var(--sk-muted);font-weight:500;margin-left:12px;}
.sk-featured-card h2{font-family:var(--sk-font-serif);padding-top:10px;font-size:25px;line-height:1.65;font-weight:700;color:var(--sk-heading);margin:0;}
.sk-featured-card .sk-lead{padding-top:12px;font-size:13.5px;line-height:2;color:var(--sk-body-text);max-width:560px;margin:0;}
.sk-featured-card .sk-read{display:inline-flex;margin-top:16px;font-size:13px;font-weight:700;color:var(--sk-primary);}

/* ==== sections ==== */
/* Sections alternate bg (gray/white) below the featured block — no rules. */
.sk-section{padding:68px 0;}
.sk-section--bg{background:var(--sk-bg01);border-top:0;}
.sk-section--dark{border-top:0;color:#fff;background:linear-gradient(90deg,rgba(5,8,24,.99) 0%,rgba(9,10,30,.97) 60%,rgba(21,22,48,.94) 100%),#0A0E1A;}
.sk-sec-title{font-family:var(--sk-font-serif);font-size:27px;line-height:1.4;font-weight:700;color:var(--sk-heading);letter-spacing:.04em;margin:0;}
.sk-section--dark .sk-sec-title{color:#fff;}
.sk-sec-head{margin-bottom:32px;}
.sk-sec-lead{padding-top:10px;font-size:13.5px;line-height:2;color:var(--sk-muted);max-width:720px;margin:0;}

/* ==== series strip (定期レポート, mock v8.1) ====
 * No blue top border. Cards are whole-card links, rounded like every other
 * card. Title block has a fixed 2-line height so the 最新 rule aligns across
 * cards; the footer row pins to the bottom. */
.sk-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.sk-stile{display:flex;flex-direction:column;background:#fff;border:1px solid var(--sk-border);border-radius:8px;padding:20px 22px 16px;transition:border-color .15s;}
a.sk-stile:hover{border-color:var(--sk-primary);}
.sk-stile .sk-nm{font-family:var(--sk-font-serif);font-size:15px;font-weight:700;color:var(--sk-heading);line-height:1.6;min-height:3.2em;}
.sk-stile .sk-dow{font-size:11px;color:var(--sk-muted);margin-top:2px;}
.sk-stile .sk-latest{font-size:11.5px;color:var(--sk-body-text);line-height:1.7;margin-top:12px;border-top:1px solid var(--sk-border);padding-top:11px;}
.sk-stile .sk-latest b{font-weight:600;color:var(--sk-heading);}
.sk-stile .sk-foot{margin-top:auto;padding-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:11px;color:var(--sk-muted);}
.sk-stile .sk-foot-lbl{letter-spacing:.06em;}
.sk-stile .sk-foot-arw{width:26px;height:26px;border:1px solid var(--sk-border);border-radius:50%;display:flex;align-items:center;justify-content:center;color:var(--sk-primary);font-size:12px;transition:all .15s;}
a.sk-stile:hover .sk-foot-arw{background:var(--sk-primary);border-color:var(--sk-primary);color:#fff;}

/* ==== tabs + archive rows (レポート一覧) ==== */
.sk-tabs{display:flex;gap:8px;flex-wrap:wrap;margin:0 0 18px;}
.sk-tab{font-size:12.5px;padding:7px 18px;border:1px solid var(--sk-border);background:#fff;color:var(--sk-muted);font-weight:600;cursor:pointer;border-radius:999px;}
.sk-tab.on{background:var(--sk-heading);color:#fff;border-color:var(--sk-heading);}
.sk-report-list{border-top:1px solid var(--sk-border);}
.sk-row{display:flex;gap:20px;padding:20px 0;border-bottom:1px solid var(--sk-border);align-items:flex-start;}
.sk-row .sk-thumb{flex:0 0 150px;border-radius:4px;}
.sk-row .sk-tx{flex:1;}
.sk-row-meta{font-size:11.5px;color:var(--sk-muted);display:flex;gap:12px;flex-wrap:wrap;align-items:center;}
.sk-row-meta .sk-series{color:var(--sk-primary);font-weight:700;}
.sk-badge{font-size:10.5px;font-weight:700;padding:2px 10px;border-radius:999px;}
.sk-badge--open{background:var(--sk-primary);color:#fff;}
.sk-badge--mem{background:var(--sk-bg02);color:#fff;}
.sk-row h3{font-size:15.5px;font-weight:700;line-height:1.7;color:var(--sk-heading);margin:7px 0 6px;}
.sk-row .sk-ds{font-size:12px;color:var(--sk-body-text);line-height:1.9;}
.sk-byline{display:flex;align-items:center;gap:8px;font-size:11.5px;color:var(--sk-muted);margin-top:9px;}
.sk-byline b{color:var(--sk-ink);font-weight:600;}
.sk-pager{display:flex;gap:8px;justify-content:center;padding:26px 0 4px;font-size:12.5px;color:var(--sk-muted);}
.sk-pager .page-numbers{border:1px solid var(--sk-border);padding:7px 13px;color:var(--sk-muted);border-radius:6px;background:#fff;}
.sk-pager .page-numbers.current{background:var(--sk-heading);color:#fff;border-color:var(--sk-heading);}

/* ==== research examples ==== */
.sk-pages-grid{display:grid;grid-template-columns:1fr 1fr;gap:30px;}
.sk-page-fig{background:#fff;border:1px solid var(--sk-border);border-radius:8px;padding:18px;}
.sk-page-fig .sk-thumb{aspect-ratio:16/9;}
.sk-page-fig .sk-cap{padding-top:12px;font-size:12px;line-height:1.9;color:var(--sk-muted);}
.sk-pages-note{margin-top:28px;font-size:12.5px;color:var(--sk-body-text);}

/* ==== plans ==== */
.sk-plans{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.sk-plan{background:#fff;border:1px solid var(--sk-border);border-radius:8px;padding:30px 28px 28px;display:flex;flex-direction:column;}
.sk-plan h3{font-size:15px;font-weight:700;color:var(--sk-heading);margin:0;}
.sk-plan .sk-price{padding:14px 0 4px;font-size:29px;font-weight:700;color:var(--sk-heading);line-height:1.2;margin:0;}
.sk-plan .sk-price small{font-size:13px;font-weight:700;color:var(--sk-muted);margin-left:6px;}
.sk-plan .sk-per{font-size:11.5px;color:var(--sk-muted);margin:0;}
.sk-plan ul{list-style:none;padding:16px 0 20px;margin:0;flex-grow:1;}
.sk-plan li{position:relative;padding:4px 0 4px 18px;font-size:12.5px;line-height:1.8;color:var(--sk-body-text);}
.sk-plan li::before{content:"";position:absolute;left:2px;top:14px;width:6px;height:6px;background:var(--sk-primary);}
.sk-plan-cta{display:inline-flex;justify-content:center;font-size:12.5px;font-weight:700;padding:12px 0;border:1px solid var(--sk-bg02);color:var(--sk-ink);}
.sk-plan-cta--dark{background:var(--sk-bg02);color:#fff;cursor:pointer;}
.sk-plans-note{margin-top:26px;font-size:11.5px;line-height:1.9;color:var(--sk-muted);}

/* ==== research policy ==== */
.sk-principles{display:grid;grid-template-columns:repeat(4,1fr);gap:40px 36px;}
.sk-principle .sk-num{font-family:var(--sk-font-en);font-size:13px;font-weight:700;color:var(--sk-primary);letter-spacing:.08em;}
.sk-principle h3{padding-top:8px;font-size:16.5px;font-weight:700;color:var(--sk-heading);line-height:1.6;margin:0;}
.sk-principle p{padding-top:10px;font-size:13px;line-height:2;color:var(--sk-body-text);margin:0;}
.sk-quality-note{margin-top:42px;padding-top:22px;border-top:1px solid var(--sk-border);font-size:12.5px;color:var(--sk-muted);}

/* ==== about ==== */
.sk-about{max-width:760px;}
.sk-about p{padding-top:14px;font-size:13.5px;line-height:2.1;color:rgba(255,255,255,.82);margin:0;}

/* ==== FAQ ==== */
.sk-faq-row{padding:22px 4px;border-bottom:1px solid var(--sk-border);}
.sk-faq-row h3{font-size:14.5px;font-weight:700;color:var(--sk-heading);margin:0;}
.sk-faq-row p{padding-top:8px;font-size:13px;line-height:2;color:var(--sk-body-text);max-width:820px;margin:0;}

/* ==== footer ==== */
.sk-footer{background:#0A0E1A;color:rgba(255,255,255,.6);padding:44px 0 40px;}
.sk-footer-brand{font-family:var(--sk-font-serif);font-weight:700;font-size:15px;color:#fff;margin:0;}
.sk-footer-brand small{font-family:var(--sk-font-en);display:block;font-size:10px;letter-spacing:.16em;color:rgba(255,255,255,.45);text-transform:uppercase;padding-top:4px;}
.sk-disclaimer{padding-top:18px;font-size:11px;line-height:1.9;max-width:820px;margin:0;}
.sk-footer-links{padding-top:18px;font-size:11.5px;margin:0;}
.sk-footer-links a{color:rgba(255,255,255,.6);margin-right:22px;}
.sk-copyright{padding-top:20px;font-size:11px;color:rgba(255,255,255,.4);margin:0;}
.sk-en{font-family:var(--sk-font-en);}

/* ==== responsive ==== */
@media (max-width:980px){
  .sk-strip,.sk-principles{grid-template-columns:repeat(2,1fr);}
  .sk-plans{grid-template-columns:1fr;}
  .sk-featured-card{grid-template-columns:1fr;gap:22px;}
}
@media (max-width:640px){
  .sk-inner{padding:0 20px;}
  .sk-header .sk-inner{gap:12px;}
  .sk-wordmark{font-size:15px;flex-shrink:1;min-width:0;}
  .sk-wordmark small{font-size:8px;letter-spacing:.1em;white-space:nowrap;}
  .sk-header-link{font-size:11px;padding:7px 12px;white-space:nowrap;flex-shrink:0;}
  .sk-top-strip{padding:7px 20px;}
  .sk-hero{padding:64px 0 72px;}
  .sk-hero-title{font-size:34px;}
  .sk-hero-rule::before,.sk-hero-rule::after{width:48px;}
  .sk-hero-catch{font-size:14px;}
  .sk-signup{flex-direction:column;}
  .sk-strip,.sk-principles,.sk-pages-grid{grid-template-columns:1fr;}
  .sk-row{flex-direction:column;}
  .sk-row .sk-thumb{flex:none;width:100%;aspect-ratio:1200/630;}
}

/* ==== single report article (PM-822) ==== */
.sk-article-page{max-width:1080px;margin:0 auto;padding:56px 36px 72px;}
.sk-article-head .sk-meta{font-size:12.5px;font-weight:700;color:var(--sk-primary);margin:0;}
.sk-article-head .sk-meta span{color:var(--sk-muted);font-weight:500;margin-left:12px;}
.sk-article-title{font-family:var(--sk-font-serif);font-size:30px;line-height:1.6;font-weight:700;color:var(--sk-heading);margin:12px 0 0;}
.sk-article-thumb{margin-top:28px;border:1px solid var(--sk-border);border-radius:8px;overflow:hidden;}
.sk-article-body{margin-top:36px;font-size:15px;line-height:2;color:var(--sk-body-text);}
.sk-article-body h2{font-family:var(--sk-font-serif);font-size:22px;line-height:1.6;font-weight:700;color:var(--sk-heading);margin:52px 0 18px;padding-bottom:10px;border-bottom:1px solid var(--sk-border);}
.sk-article-body h3{font-size:17px;font-weight:700;color:var(--sk-heading);margin:36px 0 14px;}
.sk-article-body p{margin:0 0 22px;}
.sk-article-body a{color:var(--sk-primary);text-decoration:underline;}
.sk-article-body ul,.sk-article-body ol{margin:0 0 22px;padding-left:24px;}
.sk-article-body li{margin-bottom:8px;}
.sk-article-body img{border:1px solid var(--sk-border);border-radius:6px;}
.sk-article-body table{width:100%;border-collapse:collapse;font-size:13px;margin:0 0 22px;}
.sk-article-body th,.sk-article-body td{border:1px solid var(--sk-border);padding:8px 12px;text-align:left;}
.sk-article-body th{background:var(--sk-bg01);font-weight:700;color:var(--sk-heading);}
.sk-article-body blockquote{border-left:3px solid var(--sk-border);margin:0 0 22px;padding:4px 0 4px 18px;color:var(--sk-muted);}
.sk-article-back{margin-top:48px;}
.sk-article-back a{font-size:13px;font-weight:700;color:var(--sk-primary);}
@media (max-width:767px){
  .sk-article-page{padding:36px 20px 56px;}
  .sk-article-title{font-size:23px;}
}

/* ==== single report: hide Cocoon auto TOC, writer box (PM-826) ==== */
.souken-page .toc{display:none;}
.sk-writer{display:flex;gap:16px;align-items:flex-start;border:1px solid var(--sk-border);border-radius:8px;background:var(--sk-bg01);padding:18px 22px;margin-top:32px;}
.sk-writer-name{font-size:14px;font-weight:700;color:var(--sk-heading);}
.sk-writer-name small{font-size:11px;font-weight:500;color:var(--sk-muted);margin-left:10px;}
.sk-writer-bio{font-size:12.5px;line-height:1.9;color:var(--sk-body-text);margin-top:6px;}

/* Cocoon's decorative quote glyphs overlap the text on the souken shell —
 * strip them and let the left-border style stand alone (PM-826 follow-up). */
.sk-article-body blockquote{background:var(--sk-bg01);border-left:3px solid var(--sk-border);border-radius:0 6px 6px 0;padding:16px 20px;}
.sk-article-body blockquote::before,.sk-article-body blockquote::after{content:none;display:none;}
.sk-article-body blockquote p:last-child{margin-bottom:0;}