:root{
  --ink:#26282d;--ink-2:#41454c;--muted:#727a83;--muted2:#a6adb4;
  --bg:#fff;--bg-soft:#faf7f3;--line:#eee7de;
  --acc:#f4552e;--acc-d:#d63a2a;
  --grad:linear-gradient(135deg,#ff9d3a 0%,#ff6a2d 48%,#ef3325 100%);
  --rainbow:linear-gradient(100deg,#ff3d6d 0%,#ff8a3d 19%,#ffd23d 37%,#37d67a 57%,#3aa0ff 77%,#a06bff 100%);
  --glow:rgba(250,90,60,.28);
  --sans:"Hiragino Kaku Gothic ProN","Hiragino Sans","Yu Gothic Medium","YuGothic","Noto Sans JP",system-ui,sans-serif;
  --r:20px;--shadow-sm:0 10px 26px -18px rgba(80,45,40,.32);
}
*{box-sizing:border-box}
body{margin:0;font-family:var(--sans);color:var(--ink);background:var(--bg);line-height:1.9;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto}
.topline{height:4px;background:var(--rainbow)}
.wrap{max-width:860px;margin:0 auto;padding:0 22px}
nav.da{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.86);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
nav.da .wrap{max-width:1120px;display:flex;align-items:center;justify-content:space-between;height:60px}
nav.da .logo img{height:44px;width:auto;display:block}
nav.da .links{display:flex;gap:22px;align-items:center;font-size:13.5px;color:var(--muted)}
nav.da .links a:hover{color:var(--ink)}
nav.da .cta{background:var(--grad);color:#fff;font-weight:800;padding:9px 20px;border-radius:999px;box-shadow:0 8px 18px -8px var(--glow)}
.page-head{padding:44px 0 8px}
.page-head .eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:12px;font-weight:800;letter-spacing:.2em;text-transform:uppercase;color:var(--acc-d)}
.page-head .eyebrow::before{content:"";width:24px;height:3px;border-radius:3px;background:var(--rainbow)}
.page-head h1{font-size:clamp(24px,4.5vw,34px);margin:10px 0 6px;font-weight:800}
.page-head p.desc{color:var(--muted);font-size:14px;margin:0}
.post-list{padding:26px 0 70px;display:grid;gap:16px}
.card{display:block;background:#fff;border:1px solid var(--line);border-radius:var(--r);padding:22px 24px;box-shadow:var(--shadow-sm);transition:transform .15s,box-shadow .15s}
.card:hover{transform:translateY(-3px)}
.card .meta{display:flex;gap:10px;align-items:center;font-size:12px;color:var(--muted2);margin-bottom:6px}
.badge{display:inline-block;font-size:11px;font-weight:800;padding:3px 11px;border-radius:999px;letter-spacing:.04em}
.badge.free{background:rgba(51,172,134,.13);color:#1f8a68}
.badge.lock{background:rgba(244,85,46,.12);color:var(--acc-d)}
.card h2{font-size:18px;margin:0 0 6px;font-weight:800;line-height:1.5}
.card p.ex{margin:0;font-size:13.5px;color:var(--muted)}
article.da{padding:28px 0 60px}
article.da .meta{display:flex;gap:10px;align-items:center;font-size:12.5px;color:var(--muted2);margin-bottom:10px}
article.da h1.title{font-size:clamp(22px,4.5vw,32px);font-weight:800;line-height:1.5;margin:0 0 18px}
article.da .content{font-size:16px}
article.da .content h2{font-size:21px;border-left:4px solid var(--acc);padding-left:12px;margin:36px 0 14px}
article.da .content h3{font-size:18px;margin:28px 0 10px}
article.da .content img,article.da .content iframe{border-radius:14px;max-width:100%}
article.da .content iframe{width:100%;aspect-ratio:16/9;height:auto;border:0}
.backlink{display:inline-block;margin-top:34px;color:var(--acc-d);font-weight:700;font-size:14px}
form.post-password-form{background:var(--bg-soft);border:1px solid var(--line);border-radius:var(--r);padding:28px;margin:20px 0}
form.post-password-form p{margin:0 0 12px;color:var(--ink-2);font-size:14.5px}
form.post-password-form input[type=password]{padding:12px 16px;border:1.5px solid var(--line);border-radius:12px;font-size:15px;width:min(280px,100%)}
form.post-password-form input[type=submit]{background:var(--grad);color:#fff;border:0;font-weight:800;padding:12px 26px;border-radius:999px;cursor:pointer;margin-left:8px;font-size:14px}
footer.da{background:#241410;color:#c6ab9c;font-size:12.5px;padding:36px 0;text-align:center}
footer.da a{color:#ff9d6b;font-weight:700}
footer.da .social{display:flex;flex-wrap:wrap;gap:10px;justify-content:center;margin-bottom:16px}
footer.da .social a{display:inline-flex;align-items:center;padding:7px 16px;border:1px solid rgba(255,255,255,.28);border-radius:999px;font-size:12.5px;color:#c6ab9c;transition:background .15s,border-color .15s}
footer.da .social a:hover{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.5)}
@media(max-width:700px){
  nav.da .wrap{gap:8px}
  nav.da .links{gap:12px;font-size:12px;overflow-x:auto;white-space:nowrap;flex:1;justify-content:flex-end;-webkit-overflow-scrolling:touch;scrollbar-width:none}
  nav.da .links::-webkit-scrollbar{display:none}
  nav.da .cta{padding:8px 14px;font-size:12px;flex:none}
}
.sec-head{margin:44px 0 6px;padding-bottom:10px;border-bottom:2px solid var(--line)}
.sec-head.members{margin-top:56px}
.inline-post{padding:26px 0 8px;border-bottom:1px solid var(--line)}
.inline-post:last-of-type{border-bottom:none}
.inline-post h2.title2{font-size:clamp(19px,3.4vw,25px);font-weight:800;line-height:1.5;margin:4px 0 12px}
.unlock-box{background:var(--bg-soft);border:1.5px solid rgba(244,85,46,.3);border-radius:var(--r);padding:22px 24px;margin:18px 0}
.unlock-box p{margin:0 0 8px;font-size:14px;color:var(--ink-2)}
.unlock-box form.post-password-form{background:none;border:none;padding:0;margin:0}
.lockcard{margin:14px 0}
.wrap.wide{max-width:1000px}
.post-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin:18px 0 40px}
@media(max-width:700px){.post-grid{grid-template-columns:1fr}}
.pcard{display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;box-shadow:var(--shadow-sm);transition:transform .15s,box-shadow .15s;padding:0}
.pcard:hover{transform:translateY(-4px);box-shadow:0 22px 48px -26px rgba(90,60,40,.4)}
.pcard-thumb{aspect-ratio:16/9;background-size:cover;background-position:center}
.pcard-thumb-fallback{background:linear-gradient(100deg,#ff3d6d,#ff8a3d 19%,#ffd23d 37%,#37d67a 57%,#3aa0ff 77%,#a06bff)}
.pcard .pcard-body{padding:18px 20px 20px}
.pcard h2{font-size:16.5px;margin:6px 0;font-weight:800;line-height:1.55}
.pcard .ex{font-size:12.5px;color:var(--muted);margin:0;line-height:1.7}
.pcard.is-locked .pcard-thumb{filter:grayscale(.15) brightness(.9)}
.lib-tabs{display:flex;gap:10px;flex-wrap:wrap;margin:18px 0 14px}
.lib-tab{border:1.5px solid var(--line);background:#fff;color:var(--ink-2);font-size:13px;font-weight:700;padding:8px 18px;border-radius:999px;cursor:pointer;font-family:var(--sans);transition:.15s}
.lib-tab:hover{border-color:var(--acc)}
.lib-tab.is-active{background:var(--grad);color:#fff;border-color:transparent;box-shadow:0 6px 14px -6px var(--glow)}
.lib-list{display:flex;flex-direction:column;border:1px solid var(--line);border-radius:var(--r);overflow:hidden;background:#fff;box-shadow:var(--shadow-sm);margin-bottom:44px}
.lib-row{display:grid;grid-template-columns:auto 1fr auto;gap:14px;align-items:center;padding:15px 20px;border-bottom:1px solid var(--line-2);transition:background .12s}
.lib-row:last-child{border-bottom:none}
.lib-row:hover{background:var(--bg-soft)}
.lib-title{font-size:14.5px;font-weight:700;color:var(--ink);line-height:1.55}
.lib-date{font-size:12px;color:var(--muted2);white-space:nowrap}
.chip{display:inline-block;font-size:11px;font-weight:800;padding:3px 12px;border-radius:999px;letter-spacing:.03em}
.chip-x{background:#1b1e23;color:#fff}
.chip-note{background:rgba(65,201,180,.15);color:#1f9c8a}
.chip-youtube{background:rgba(255,0,0,.1);color:#d21f1f}
.chip-voicy{background:rgba(255,95,74,.12);color:#e04a35}
.chip-sangyoi{background:rgba(58,160,255,.13);color:#1f6fb8}
.chip-corporate{background:rgba(160,107,255,.13);color:#6b3fbf}
.chip-other{background:var(--line-2);color:var(--muted)}
@media(max-width:700px){.lib-row{grid-template-columns:1fr auto;} .lib-chips{grid-column:1/-1;}}

nav.da .memberstate{display:inline-flex;align-items:center;background:rgba(55,214,122,.14);color:#1b8a4c;border:1px solid rgba(55,214,122,.45);font-weight:800;font-size:12.5px;padding:8px 16px;border-radius:999px;white-space:nowrap}
.unlock-box.unlocked{background:rgba(55,214,122,.10);border:1px solid rgba(55,214,122,.35)}

nav.da .memberstate-wrap{position:relative}
nav.da .memberstate-wrap summary{list-style:none;cursor:pointer}
nav.da .memberstate-wrap summary::-webkit-details-marker{display:none}
nav.da .memberstate-wrap summary::after{content:"▾";font-size:11px;opacity:.7;margin-left:5px}
nav.da .memberstate-menu{position:absolute;right:0;top:calc(100% + 8px);background:#fff;border:1px solid var(--line);border-radius:12px;box-shadow:0 14px 30px -12px rgba(15,23,42,.3);min-width:200px;padding:6px;z-index:60}
nav.da .memberstate-menu a{display:block;padding:10px 12px;border-radius:8px;font-size:13px;font-weight:700;color:#241410;white-space:nowrap}
nav.da .memberstate-menu a:hover{background:rgba(15,23,42,.06)}
nav.da .memberstate-menu a.logout{color:#c0392b}

.da-video{position:relative;width:100%;max-width:760px;margin:22px auto;aspect-ratio:16/9;border-radius:14px;overflow:hidden;box-shadow:0 14px 30px -14px rgba(15,23,42,.35)}
.da-video iframe{position:absolute;inset:0;width:100%;height:100%;border:0}

.popular-box{background:linear-gradient(180deg,rgba(255,157,107,.10),rgba(255,157,107,.03));border:1px solid rgba(255,157,107,.35);border-radius:14px;padding:18px 22px;margin:0 0 20px}
.popular-head{font-weight:800;font-size:14px;margin-bottom:10px}
.popular-list{margin:0;padding-left:1.2em}
.popular-list li{margin:6px 0;font-size:14.5px}
.popular-list a{font-weight:700}
.mini-lock{font-size:12px;opacity:.75}
.read-filter{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin:0 0 16px;font-size:13.5px;color:var(--ink-2)}
.read-filter label{display:inline-flex;align-items:center;gap:7px;cursor:pointer}
.clear-read{background:none;border:1px solid var(--line);border-radius:999px;padding:5px 14px;font-size:12.5px;cursor:pointer;color:var(--ink-2)}
.clear-read:hover{background:rgba(15,23,42,.05)}
.badge.read{background:rgba(15,23,42,.07);color:var(--ink-2);font-weight:700}
.pcard.is-read{opacity:.66}
.pcard.is-read:hover{opacity:1}
.lib-row.is-read{opacity:.62}
.hide-read{display:none !important}

/* ===== 記事内の図版 ===== */
.da-fig{margin:28px 0;padding:20px 22px;border:1px solid var(--line);border-radius:16px;background:var(--bg-soft)}
.da-fig-t{font-weight:800;font-size:12.5px;letter-spacing:.08em;color:var(--ink-2);margin:0 0 14px}
.da-cards{display:grid;gap:12px;grid-template-columns:repeat(3,1fr)}
.da-card{background:#fff;border:1px solid var(--line);border-radius:12px;padding:14px 16px}
.da-card .n{font-size:11.5px;font-weight:800;letter-spacing:.06em;color:#ff7a3d}
.da-card .h{font-weight:800;font-size:14.5px;margin:4px 0 6px;line-height:1.5}
.da-card .d{font-size:12.5px;color:var(--ink-2);line-height:1.7}
.da-note{margin-top:14px;font-size:13px;color:var(--ink-2);line-height:1.8}
.da-flow{display:flex;flex-direction:column;gap:9px}
.da-step{display:flex;align-items:flex-start;gap:12px;background:#fff;border:1px solid var(--line);border-radius:11px;padding:12px 15px;font-size:13.5px;line-height:1.7}
.da-step .mk{flex:none;font-weight:800;font-size:15px;width:1.5em;text-align:center}
.da-step.ng{border-color:rgba(192,57,43,.3)}
.da-step.ng .mk{color:#c0392b}
.da-step.ok{border-color:rgba(27,138,76,.45);background:rgba(55,214,122,.07)}
.da-step.ok .mk{color:#1b8a4c}
.da-two{display:grid;gap:12px;grid-template-columns:1fr 1fr}
.da-col{background:#fff;border:1px solid var(--line);border-radius:12px;padding:15px 17px}
.da-col.lot{border-top:3px solid #c0392b}
.da-col.fcfs{border-top:3px solid #1b8a4c}
.da-col .ch{font-weight:800;font-size:14.5px;margin:0 0 8px}
.da-col ul{margin:0;padding-left:1.15em;font-size:13px;color:var(--ink-2);line-height:1.85}
.da-tl{display:flex;flex-direction:column;gap:0}
.da-tl-row{display:grid;grid-template-columns:86px 1fr;gap:14px;padding:9px 0;border-bottom:1px dashed var(--line);font-size:13.5px;align-items:baseline}
.da-tl-row:last-child{border-bottom:0}
.da-tl-row .m{font-weight:800;color:#ff7a3d;font-size:13px}
.da-tl-row .e{line-height:1.7}
.da-tag{display:inline-block;font-size:11px;font-weight:800;padding:2px 8px;border-radius:999px;margin-left:6px;vertical-align:1px}
.da-tag.lot{background:rgba(192,57,43,.10);color:#c0392b}
.da-tag.fcfs{background:rgba(27,138,76,.12);color:#1b8a4c}
@media(max-width:700px){
  .da-cards,.da-two{grid-template-columns:1fr}
  .da-fig{padding:16px}
  .da-tl-row{grid-template-columns:70px 1fr;gap:10px;font-size:13px}
}

.da-linkwrap{text-align:center;margin:24px 0 10px}
.da-linkbtn{display:inline-block;background:linear-gradient(100deg,#ff7a3d,#ff9d6b);color:#fff !important;font-weight:800;font-size:15px;padding:15px 34px;border-radius:999px;text-decoration:none;box-shadow:0 12px 24px -12px rgba(255,122,61,.8);transition:transform .15s,box-shadow .15s}
.da-linkbtn:hover{transform:translateY(-1px);box-shadow:0 16px 28px -12px rgba(255,122,61,.9)}
.da-linkurl{font-size:12.5px;color:var(--ink-2);text-align:center;line-height:1.9;word-break:break-all}

.da-linkcard{margin:26px 0}
.da-linkcard a{display:block;background:#fff;border:2px solid #ff9d6b;border-left:6px solid #ff7a3d;border-radius:14px;padding:18px 22px;text-decoration:none;color:inherit;box-shadow:0 10px 24px -16px rgba(15,23,42,.4);transition:transform .15s,box-shadow .15s,border-color .15s}
.da-linkcard a:hover{transform:translateY(-2px);border-color:#ff7a3d;box-shadow:0 16px 30px -16px rgba(255,122,61,.6)}
.da-linkcard .lc-label{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.06em;color:#fff;background:#ff7a3d;padding:3px 11px;border-radius:999px;margin-bottom:10px}
.da-linkcard .lc-title{display:block;font-size:16px;font-weight:800;line-height:1.6;color:var(--ink);margin-bottom:6px}
.da-linkcard .lc-sub{display:block;font-size:12.5px;color:var(--ink-2);line-height:1.75;margin-bottom:12px}
.da-linkcard .lc-cta{display:inline-block;font-size:13.5px;font-weight:800;color:#ff7a3d}
@media(max-width:700px){.da-linkcard a{padding:16px 18px}.da-linkcard .lc-title{font-size:15px}}

.yt-channel{display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:18px;background:#fff;border:2px solid #ff4d4d;border-radius:16px;padding:20px 24px;margin:0 0 22px;text-decoration:none;color:inherit;box-shadow:0 12px 26px -18px rgba(15,23,42,.45);transition:transform .15s,box-shadow .15s}
.yt-channel:hover{transform:translateY(-2px);box-shadow:0 18px 32px -18px rgba(255,77,77,.55)}
.yt-icon svg{width:42px;height:42px;fill:#ff0000;display:block}
.yt-label{display:inline-block;font-size:11px;font-weight:800;letter-spacing:.05em;color:#fff;background:#ff0000;padding:3px 11px;border-radius:999px;margin-bottom:8px}
.yt-title{display:block;font-size:17px;font-weight:800;line-height:1.5;margin-bottom:5px}
.yt-sub{display:block;font-size:12.5px;color:var(--ink-2);line-height:1.7}
.yt-cta{font-size:13.5px;font-weight:800;color:#ff0000;white-space:nowrap}
@media(max-width:700px){
  .yt-channel{grid-template-columns:auto 1fr;gap:14px;padding:16px 18px}
  .yt-cta{grid-column:1/-1;text-align:right}
  .yt-title{font-size:15.5px}
}
.yt-channel{display:grid;grid-template-columns:auto 1fr;align-items:center;gap:22px;background:#fff;border:1px solid var(--line);border-radius:18px;padding:24px 28px;margin:0 0 24px;text-decoration:none;color:inherit;box-shadow:0 12px 28px -20px rgba(15,23,42,.5);transition:transform .15s,box-shadow .15s}
.yt-channel:hover{transform:translateY(-2px);box-shadow:0 18px 34px -20px rgba(15,23,42,.55)}
.yt-logo{width:92px;height:92px;object-fit:contain;border-radius:50%;background:#fff;border:1px solid var(--line);padding:6px;flex:none}
.yt-name{display:block;font-size:26px;font-weight:900;letter-spacing:.01em;line-height:1.25;margin-bottom:4px}
.yt-meta{display:block;font-size:12.5px;color:var(--ink-2);margin-bottom:8px}
.yt-sub{display:block;font-size:13px;color:var(--ink-2);line-height:1.75;margin-bottom:14px}
.yt-cta{display:inline-flex;align-items:center;gap:8px;background:#ff0000;color:#fff;font-size:13.5px;font-weight:800;padding:10px 20px;border-radius:999px}
.yt-cta svg{width:16px;height:16px;fill:#fff}
@media(max-width:700px){
  .yt-channel{grid-template-columns:auto 1fr;gap:14px;padding:18px}
  .yt-logo{width:62px;height:62px}
  .yt-name{font-size:20px}
  .yt-sub{grid-column:1/-1}
  .yt-cta{font-size:12.5px;padding:9px 16px}
}
/* ===== 記事内の表・補足ボックス（2026-09-07） ===== */
.da-tablewrap{overflow-x:auto;margin:24px 0;-webkit-overflow-scrolling:touch}
.da-table{width:100%;border-collapse:collapse;font-size:13.5px;line-height:1.75;min-width:460px;background:#fff}
.da-table th,.da-table td{border:1px solid var(--line);padding:11px 14px;text-align:left;vertical-align:top}
.da-table thead th{background:var(--bg-soft);font-weight:800;font-size:12.5px;letter-spacing:.04em;color:var(--ink-2);white-space:nowrap}
.da-table tbody th{background:rgba(15,23,42,.025);font-weight:800;white-space:nowrap}
.da-table tr.hl>*{background:rgba(255,157,107,.11)}
.da-table .num{white-space:nowrap;font-weight:800;color:#ff7a3d;text-align:center;width:3em}

.da-callout{border:1px solid rgba(255,157,107,.45);background:linear-gradient(180deg,rgba(255,157,107,.10),rgba(255,157,107,.03));border-radius:14px;padding:16px 20px;margin:22px 0;font-size:13.5px;line-height:1.85}
.da-callout .ct{display:block;font-weight:800;font-size:14px;margin-bottom:7px}
.da-callout p{margin:0 0 9px}
.da-callout p:last-child{margin-bottom:0}
.da-callout ul,.da-callout ol{margin:6px 0 0;padding-left:1.25em}
.da-callout li{margin:4px 0}
.da-callout.warn{border-color:rgba(192,57,43,.4);background:linear-gradient(180deg,rgba(192,57,43,.08),rgba(192,57,43,.02))}
.da-callout.warn .ct{color:#c0392b}
.da-callout.key{border-color:rgba(27,138,76,.45);background:linear-gradient(180deg,rgba(55,214,122,.11),rgba(55,214,122,.03))}
.da-callout.key .ct{color:#1b8a4c}

.da-col.mac{border-top:3px solid #4b5563}
.da-col.win{border-top:3px solid #0078d4}
.da-col ol{margin:0;padding-left:1.3em;font-size:13px;color:var(--ink-2);line-height:1.95}
.da-col ol strong,.da-col ul strong{color:var(--ink)}
.da-kbd{display:inline-block;font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:12.5px;font-weight:700;background:rgba(15,23,42,.06);border:1px solid var(--line);border-radius:6px;padding:1px 7px}
@media(max-width:700px){
  .da-table{font-size:12.5px}
  .da-table th,.da-table td{padding:9px 10px}
  .da-callout{padding:14px 16px}
}