:root{--paper:#faf8f4;--ink:#172f40;--muted:#596773;--line:#deded7;--blue:#306878;--gold:#9a662c}*{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:2rem}body{margin:0;background:var(--paper);color:var(--ink);font-family:"Noto Sans JP","Yu Gothic",Meiryo,sans-serif;font-size:1rem;line-height:1.85}a{color:inherit;text-underline-offset:.25em}a:focus-visible,summary:focus-visible{outline:3px solid #a66520;outline-offset:5px}header{max-width:1200px;margin:auto;padding:25px 36px;display:flex;gap:30px;align-items:center;border-bottom:1px solid var(--line)}.brand{text-decoration:none;font-weight:700;letter-spacing:.03em;white-space:nowrap}.brand span{font-family:Georgia,serif;font-size:1.65rem;margin-left:3px}nav{display:flex;gap:24px;margin-left:auto;font-size:.875rem}nav a{text-decoration:none}.header-line{font-size:.875rem;font-weight:700;text-decoration:none;border-bottom:1px solid var(--ink)}main{max-width:1120px;margin:auto;padding:0 28px}.intro{display:flex;gap:42px;align-items:center;padding:44px 0 36px}.month-number{font-family:Georgia,serif;font-size:9rem;line-height:1;color:#cab89b;letter-spacing:-.07em;min-width:170px}.eyebrow{margin:0 0 10px;font-size:.875rem;font-weight:700;letter-spacing:.13em;color:var(--muted)}h1,h2{font-family:"Yu Mincho","Hiragino Mincho ProN",serif;line-height:1.6;letter-spacing:.04em}h1{font-size:2.35rem;margin:0 0 12px}.lead{max-width:680px;margin:0;font-size:1.05rem}.updated{margin:15px 0 0;color:var(--muted);font-size:.875rem}.campaign{background:#fff;border:1px solid var(--line);border-top:4px solid var(--blue);margin-bottom:30px;border-radius:3px;--accent:var(--blue)}.campaign.gold{border-top-color:var(--gold);--accent:var(--gold)}.campaign-heading{display:flex;align-items:center;gap:22px;padding:26px 32px;border-bottom:1px solid var(--line)}.index{font-family:Georgia,serif;font-size:2.8rem;color:var(--accent);line-height:1}.campaign-name{font-size:.875rem;font-weight:700;letter-spacing:.05em;margin:0 0 5px;color:var(--accent)}h2{font-size:1.65rem;margin:0}.status{margin-left:auto;white-space:nowrap;background:#eff4f1;color:#345b49;border:1px solid #cfdfd5;border-radius:3px;font-size:.875rem;padding:3px 12px;font-weight:700}.campaign-body{display:grid;grid-template-columns:minmax(0,1fr) 310px;gap:36px;padding:28px 32px 32px}.tag{font-size:.875rem;color:var(--accent);font-weight:700;margin:0 0 9px}.theme{margin:0 0 24px}h3{font-size:1rem;margin:0 0 10px}.contents{margin:0 0 25px;padding-left:1.35em}.contents li{margin-bottom:5px}.contents li::marker{color:var(--accent)}.report{border-left:3px solid #deded7;padding-left:18px}.report p{margin:0 0 8px}.note{color:var(--muted);font-size:.875rem;line-height:1.8}.booking{background:#f7f7f3;padding:21px 23px;align-self:start;border-radius:3px}.booking dl{margin:0 0 20px}.booking dl>div{margin-bottom:17px}.booking dt{font-size:.875rem;color:var(--muted);margin-bottom:3px}.booking dd{margin:0;font-weight:700;line-height:1.65}.booking .price{font-family:Georgia,"Yu Mincho",serif;font-size:2.1rem;font-weight:400;line-height:1.3}.discount{color:var(--accent);font-size:1.15rem}.button{display:flex;justify-content:space-between;align-items:center;gap:10px;text-decoration:none;min-height:48px;border-radius:3px;padding:11px 14px;font-size:.875rem;font-weight:700;line-height:1.6}.secondary{border:1px solid #b5c2c8;background:#fff}.primary{background:var(--ink);color:#fff}.button:hover{filter:brightness(.93)}.apply{border-top:1px solid var(--line);margin-top:20px;padding-top:4px}.apply p{font-size:.875rem;margin:14px 0}.reading-note{color:var(--muted);font-size:.875rem;margin:8px 0 55px}.archive{border-top:1px solid var(--line);padding:40px 0 52px}.section-heading{margin-bottom:24px}.archive h2{font-size:1.5rem}.empty{padding:22px 24px;background:#efeee9;color:var(--muted);margin:0 0 24px}.archive-help{max-width:750px;margin-top:30px}.archive-help p{margin:0 0 10px}.text-link{font-weight:700;font-size:.95rem}.archive-month{border-bottom:1px solid var(--line);padding:15px 0}.archive-month summary{cursor:pointer;font-weight:700;min-height:44px;padding:8px 0}.archive-month summary span{font-weight:400;color:var(--muted);font-size:.875rem;margin-left:14px}.archive-list{display:grid;grid-template-columns:1fr 1fr;gap:20px;padding:10px 0 20px}.archive-item{background:#fff;border:1px solid var(--line);padding:20px}.archive-item p{margin:0}.archive-item h3{margin:8px 0}.ended{font-size:.875rem;color:var(--muted)}footer{text-align:center;border-top:1px solid var(--line);padding:28px;font-size:.875rem}footer a{font-weight:700}footer p{color:var(--muted);margin:10px 0 0}.skip{position:absolute;left:20px;top:-100px;padding:10px;background:var(--ink);color:#fff;z-index:10}.skip:focus{top:10px}@media(max-width:850px){.campaign-body{grid-template-columns:minmax(0,1fr) 270px;gap:24px;padding:24px}.campaign-heading{padding:24px;gap:16px}.campaign-heading h2{font-size:1.4rem}.intro{gap:25px}.month-number{min-width:130px;font-size:7rem}h1{font-size:2rem}header{padding:20px 28px;gap:20px}}@media(max-width:680px){header{padding:16px 20px;flex-wrap:wrap;gap:8px 18px}.brand{font-size:.95rem}.header-line{margin-left:auto}nav{order:3;width:100%;margin:0;font-size:.875rem;gap:20px}main{padding:0 20px}.intro{padding:28px 0;gap:18px;align-items:flex-start}.month-number{font-size:4rem;min-width:64px;margin-top:32px}.eyebrow{font-size:.8rem;letter-spacing:.08em}h1{font-size:1.55rem}.lead{font-size:1rem}.campaign-heading{padding:20px;display:grid;grid-template-columns:40px minmax(0,1fr);gap:12px}.index{font-size:2rem}.campaign-heading h2{font-size:1.2rem;letter-spacing:.02em}.status{grid-column:2;margin:0;justify-self:start}.campaign-body{display:block;padding:20px}.booking{margin-top:25px;padding:20px}.report{padding-left:14px}.archive-list{grid-template-columns:1fr}.archive h2{font-size:1.3rem}.reading-note{margin-bottom:36px}.archive{padding:30px 0 40px}.updated{font-size:.8rem}}@media(prefers-reduced-motion:reduce){html{scroll-behavior:auto}}

/* フォーカステキストはブログの文章をそのまま、本文と区別して表示する。 */
.focus-texts{margin:0 0 28px}
.focus-label{font-size:.875rem;color:var(--muted);margin:0 0 10px}
.focus-quote{margin:0;border-left:4px solid var(--accent);background:#f0f5f6;padding:20px 22px;color:#234f60}
.gold .focus-quote{background:#faf3e9;color:#765020}
.focus-quote p{margin:0;font-size:1.075rem;line-height:1.95}
.focus-quote strong{font-weight:700}
.session-details{margin:0 0 28px}
.session-details p{margin:0 0 14px}
@media(max-width:680px){.focus-quote{padding:16px}.focus-quote p{font-size:1rem}}

/* 文字の大きさではなく、見出し帯と面の色で情報を整理する。 */
.campaign{--band:#285b69;--surface:#edf4f5;--surface-border:#ccdde2;--focus-surface:#dcecf0;border-top:0;border-color:var(--surface-border);overflow:hidden;margin-bottom:40px}
.campaign.gold{--band:#785427;--surface:#f8f1e7;--surface-border:#e5d7c2;--focus-surface:#f2e4cf;border-top:0;border-color:var(--surface-border)}
.campaign-heading{background:var(--band);color:#fff;border-bottom:0}
.campaign-heading .index{color:#fff;opacity:.8}
.campaign-heading .campaign-name{color:#fff;opacity:.9;margin:7px 0 0;font-weight:500}
.campaign-heading .status{background:#fff;color:#345b49;border-color:transparent}
.description{display:flex;flex-direction:column;gap:22px;min-width:0}
.overview{background:#f5f5f1;padding:23px 24px;border-radius:3px}
.overview .tag{display:inline-block;background:#e5e9e5;color:#435a54;padding:3px 10px;margin-bottom:16px;border-radius:2px}
.overview .theme{margin:0 0 16px}
.overview .theme:last-child{margin-bottom:0}
.session-content{background:var(--surface);padding:22px 24px;border:1px solid var(--surface-border);border-radius:3px}
.session-content h3,.session-details h3,.report h3{margin-bottom:13px}
.session-content .contents{margin:0;padding-left:1.25em}
.session-content .contents li{padding:8px 0;margin:0;border-bottom:1px solid var(--surface-border)}
.session-content .contents li:first-child{padding-top:0}
.session-content .contents li:last-child{padding-bottom:0;border-bottom:0}
.session-details{background:#f5f3ee;padding:22px 24px;margin:0;border-radius:3px;border-left:3px solid #c7bca9}
.session-details p:last-child{margin-bottom:0}
.report{background:#eaf0f5;border:0;border-top:3px solid #b5c9d8;border-radius:3px;padding:20px 24px}
.report .contents{margin:0;padding-left:1.25em}
.report .note{margin-top:12px}
.focus-texts{margin:0;background:var(--focus-surface);border:1px solid var(--surface-border);border-left:4px solid var(--band);border-radius:3px;padding:22px 24px}
.focus-texts h3{color:var(--band)}
.focus-label{color:#4e626c;margin-bottom:12px}
.focus-quote,.gold .focus-quote{background:none;padding:0;border:0;color:var(--band)}
.focus-quote p{font-size:1rem}
.booking{background:var(--surface);border:1px solid var(--surface-border);padding:20px;border-radius:3px}
.booking dl>div{background:#fff;border-radius:2px;padding:12px 14px;margin-bottom:10px}
.booking dl{margin-bottom:17px}
.booking .apply{background:#fff;border-top:0;border-radius:2px;margin-top:16px;padding:1px 14px 14px}
.booking .apply p{margin:13px 0}
.booking>.note{padding:0 3px}
.archive{background:#efeee8;border:0;border-radius:3px;padding:30px;margin-bottom:35px}
.archive .empty{background:#fff;border:1px solid #deded7;border-radius:3px}
.archive-help{padding:22px 24px;background:#fff;border-radius:3px;margin-top:22px}
@media(max-width:680px){.description{gap:18px}.overview,.session-content,.session-details,.report,.focus-texts{padding:18px}.campaign{margin-bottom:30px}.campaign-body{padding:18px}.booking{padding:16px}.archive{padding:22px 18px}.archive-help{padding:18px}.focus-quote p{font-size:1rem}}

/* 行動と料金は、企画に関係なく共通の色で見分ける。 */
.button.secondary{background:#bd343c;border-color:#bd343c;color:#fff}
.button.primary{background:#06c755;color:#08351d;border:1px solid #06c755}
.header-line{background:#06c755;color:#08351d;border:0;padding:7px 13px;border-radius:3px}
.archive-help .text-link{display:inline-block;background:#06c755;color:#08351d;padding:10px 16px;border-radius:3px;text-decoration:none}
.booking .price{color:#225f9e}
.booking .discount{color:#b32f39}
.booking dl>div:has(.price){background:#edf4fc;border-left:3px solid #225f9e}
.booking dl>div:has(.discount){background:#fff0f0;border-left:3px solid #b32f39}
.button.secondary:hover{background:#a52b33;border-color:#a52b33;filter:none}
.button.primary:hover,.header-line:hover,.archive-help .text-link:hover{background:#05b34c;filter:none}

/* 月別の全文保存ページへの導線。既存の企画カードは同じ見た目を使う。 */
.month-links{list-style:none;padding:0;margin:20px 0}
.month-links li+li{margin-top:10px}
.month-link{display:block;padding:14px 18px;background:#fff;border:1px solid var(--line);border-radius:3px;text-decoration:none;min-height:48px;overflow-wrap:anywhere}
a.month-link:hover{background:#faf8f4;text-decoration:underline}
.month-link[aria-current]{color:var(--muted)}
.past-notice{margin-top:28px;padding:20px 24px;background:#f2e4cf;border-left:4px solid var(--gold);border-radius:3px}
.past-notice p{margin:0 0 10px}
.past-notice .text-link{display:inline-block;padding:8px 0;min-height:44px}
header nav a,.header-line{display:inline-flex;align-items:center;min-height:44px}
footer>a{display:inline-flex;align-items:center;min-height:44px}
.footer-legal{justify-content:center;flex-wrap:wrap;margin:8px 0 0;gap:6px 24px}
.footer-legal a{display:inline-flex;align-items:center;min-height:44px;font-weight:400}
@media(max-width:680px){.eyebrow,.updated{font-size:.875rem}}