:root{
  --paper:#E9EEE3;      /* 地衣類のような淡い緑灰 */
  --label:#F8F9F3;      /* 標本ラベルの紙 */
  --ink:#1E2A20;        /* 苔の墨 */
  --moss:#3E5236;
  --river:#8C5A24;      /* アマゾンの泥の川 */
  --rule:#B4C0A6;
  --muted:#4F5C4C;
  --hand:"Shippori Mincho","Hiragino Mincho ProN","Yu Mincho",serif;
  --body:"Shippori Mincho","Hiragino Mincho ProN","Yu Mincho",serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
@media (prefers-reduced-motion:reduce){html{scroll-behavior:auto}}
body{margin:0;background:var(--paper);position:relative;isolation:isolate;color:var(--ink);font-family:var(--body);font-size:1rem;line-height:1.9;letter-spacing:.02em;-webkit-font-smoothing:antialiased}
h1,h2,dt{text-wrap:balance;word-break:auto-phrase}
/* 野帳：外側はマットな緑の表紙、中身は青い方眼の白い紙 */
body::before{content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;
  background-color:#2F5A45;background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='220' height='220'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='3' stitchTiles='stitch'/%3E%3CfeColorMatrix values='0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 .22 0'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E")}
.wrap{max-width:1240px;margin:0 auto;padding:0 clamp(20px,5vw,60px);
  background-color:#FBFBF7;
  background-image:linear-gradient(rgba(64,118,176,.13) 1px,transparent 1px),
    linear-gradient(90deg,rgba(64,118,176,.13) 1px,transparent 1px);
  background-size:12px 12px;background-position:-1px -1px;
  border-radius:2px;
  box-shadow:0 1px 2px rgba(0,0,0,.25),0 14px 30px rgba(0,0,0,.25)}
@media (max-width:860px){.wrap{margin:0 8px}}
img{display:block;width:100%;height:100%;object-fit:cover}
a{color:var(--river);text-underline-offset:.2em}
a:focus-visible{outline:2px solid var(--river);outline-offset:3px;border-radius:2px}

/* ヘッダー */
.site-head{display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:20px 0}
.site-head .name{font-family:var(--hand);font-weight:600;font-size:1.05rem;color:var(--ink);text-decoration:none}
.site-head nav{display:flex;gap:18px;font-size:.88rem}
.site-head nav a{color:var(--muted);text-decoration:none}
.site-head nav a:hover{color:var(--ink)}

/* 標本ラベル：写真に添える「種名・場所・日付」 */
figure{margin:0;position:relative}
.label{position:absolute;left:12px;bottom:12px;background:var(--label);border:1px solid var(--ink);padding:6px 10px 5px;font-family:var(--hand);font-size:.78rem;line-height:1.45;color:var(--ink);max-width:calc(100% - 24px)}
.label i{font-style:normal;display:block;font-size:.72rem;color:var(--muted)}

/* ヒーロー */
.hero{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:end;padding:24px 0 88px}
.hero h1{font-family:var(--hand);font-weight:500;font-size:clamp(2.1rem,4.6vw,3.7rem);line-height:1.4;letter-spacing:.04em;margin:0 0 28px}
.hero .role{font-size:1.02rem;font-weight:500;margin:0 0 18px;color:var(--moss)}
.hero .lede{max-width:30em;margin:0;color:var(--ink)}
.hero figure{aspect-ratio:3/4.4;max-height:78vh;justify-self:end;width:100%;max-width:440px}
.hero figure img{border-radius:2px}

/* 旅の章 */
.chapter{padding:72px 0;border-top:1px solid var(--rule)}
.chapter-head{display:grid;grid-template-columns:220px 1fr;gap:40px;margin-bottom:36px}
.chapter-head .when{font-family:var(--hand);font-size:1rem;color:var(--muted);padding-top:.6em}
.chapter-head h2{font-family:var(--hand);font-weight:600;font-size:clamp(1.9rem,4vw,2.8rem);line-height:1.3;margin:0 0 14px}
.chapter-head p{margin:0;max-width:34em}

.plates{display:grid;gap:14px}
.plates.savanna{grid-template-columns:1.4fr 1fr 1fr;grid-template-rows:280px 280px}
.plates.savanna .big{grid-row:span 2}
.plates.tall{grid-template-columns:repeat(4,1fr)}
.plates.tall figure{aspect-ratio:3/5}
.plates.tall .wide{grid-column:span 2;aspect-ratio:auto}

/* ヘラクレス */
.hercules{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:14px;max-width:720px}
.hercules figure{aspect-ratio:3/4}
.hercules img{object-position:50% 30%}
.moment{margin:44px 0 0;padding:0 0 0 24px;border-left:3px solid var(--moss);max-width:36em;font-family:var(--hand);font-size:1.18rem;line-height:1.9}

/* フィールドノート */
.notes{padding:72px 0;border-top:1px solid var(--rule)}
.notes-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:14px;margin-top:32px}
.notes-grid figure{aspect-ratio:3/4.6}
.notes h2,.guide h2,.contact h2{font-family:var(--hand);font-weight:600;font-size:clamp(1.7rem,3.4vw,2.4rem);margin:0 0 12px}
.notes p.intro{max-width:34em;margin:0}

/* ガイド */
.guide{padding:72px 0;border-top:1px solid var(--rule);display:grid;grid-template-columns:.8fr 1.2fr;gap:56px;align-items:start}
.guide figure{aspect-ratio:3/4.2;max-width:380px}
.guide figure img{object-position:50% 20%}
.guide dl{margin:24px 0 0}
.guide dt{font-family:var(--hand);font-weight:600;font-size:1.25rem;margin-top:26px}
.guide dt:first-child{margin-top:0}
.guide dd{margin:4px 0 0;max-width:30em}

/* 連絡先 */
.contact{padding:72px 0 96px;border-top:1px solid var(--rule)}
.contact ul{list-style:none;padding:0;margin:20px 0 0;display:flex;flex-wrap:wrap;gap:12px}
.contact li a{display:inline-block;border:1px solid var(--ink);background:var(--label);padding:10px 18px;color:var(--ink);text-decoration:none;font-weight:500}
.contact li a:hover{background:var(--ink);color:var(--label)}
footer{padding:28px 0 40px;font-size:.8rem;color:var(--muted)}


/* プラン一覧（トップ） */
.plan-list{list-style:none;padding:0;margin:28px 0 0;display:grid;gap:12px}
.plan-list a{display:grid;grid-template-columns:1fr auto;gap:4px 20px;align-items:baseline;padding:16px 18px;background:rgba(248,249,243,.92);border:1px solid var(--rule);color:var(--ink);text-decoration:none}
.plan-list a:hover{border-color:var(--ink)}
.plan-list .t{font-family:var(--hand);font-weight:600;font-size:1.2rem}
.plan-list .p{font-weight:500;color:var(--river);white-space:nowrap}
.plan-list .d{grid-column:1/-1;font-size:.9rem;color:var(--muted);line-height:1.7}
.plan-list .go{grid-column:1/-1;font-size:.85rem;color:var(--moss);text-decoration:underline;text-underline-offset:.2em}

/* プラン詳細ページ */
.crumb{font-size:.88rem;margin:8px 0 0}
.plan-hero{display:grid;grid-template-columns:1.1fr .9fr;gap:48px;align-items:end;padding:28px 0 56px}
.plan-hero h1{font-family:var(--hand);font-weight:500;font-size:clamp(2.2rem,5.4vw,3.8rem);line-height:1.25;margin:0 0 18px}
.plan-hero .lede{margin:0;max-width:30em}
.plan-hero figure{aspect-ratio:4/3.4;width:100%}
.facts{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--ink);border-bottom:1px solid var(--ink);margin:0 0 56px;background:rgba(248,249,243,.9)}
.facts div{padding:14px 16px;border-left:1px solid var(--rule)}
.facts div:first-child{border-left:0}
.facts dt{font-size:.8rem;color:var(--muted)}
.facts dd{margin:2px 0 0;font-weight:500;line-height:1.5}
.facts .price dd{font-family:var(--hand);font-weight:600;font-size:1.5rem;color:var(--river)}
.plan-body{display:grid;grid-template-columns:220px 1fr;gap:40px;padding:0 0 56px}
.plan-body h2{font-family:var(--hand);font-weight:600;font-size:1.5rem;margin:0;line-height:1.4}
.plan-body .content{max-width:36em}
.plan-body ol{margin:0;padding-left:1.4em}
.plan-body ol li{margin-bottom:10px}
.plan-body ol li b{font-weight:500}
.plan-body ul{margin:0;padding-left:1.2em}
.plan-body p{margin:0 0 12px}
.note{font-size:.88rem;color:var(--muted)}
.book{padding:40px 0 72px;border-top:1px solid var(--rule)}
.book h2{font-family:var(--hand);font-weight:600;font-size:1.6rem;margin:0 0 8px}
.book .btn{display:inline-block;margin-top:14px;border:1px solid var(--ink);background:var(--ink);color:var(--label);padding:12px 22px;text-decoration:none;font-weight:500}
.book .btn:hover{background:var(--moss)}
.others{list-style:none;padding:0;margin:28px 0 0;display:flex;flex-wrap:wrap;gap:10px 18px;font-size:.92rem}

@media (max-width:860px){
  .plan-hero{grid-template-columns:1fr;gap:24px}
  .facts{grid-template-columns:1fr 1fr}
  .facts div:nth-child(3){border-left:0}
  .facts div:nth-child(n+3){border-top:1px solid var(--rule)}
  .plan-body{grid-template-columns:1fr;gap:10px}
  .plan-list a{grid-template-columns:1fr}

  .hero{grid-template-columns:1fr;gap:32px;padding-bottom:56px}
  .hero figure{justify-self:stretch;max-width:none;aspect-ratio:3/3.6}
  .chapter-head{grid-template-columns:1fr;gap:4px}
  .chapter-head .when{padding-top:0}
  .plates.savanna{grid-template-columns:1fr 1fr;grid-template-rows:auto}
  .plates.savanna figure{aspect-ratio:3/4}
  .plates.savanna .big{aspect-ratio:4/3}
  .label{left:8px;bottom:8px;padding:4px 7px 3px;font-size:.7rem;max-width:calc(100% - 16px)}
  .label i{font-size:.64rem}
  .plates.savanna .big{grid-column:span 2;grid-row:auto}
  .plates.tall{grid-template-columns:1fr 1fr}
  .plates.tall .wide{grid-column:span 2;aspect-ratio:3/2.4}
  .notes-grid{grid-template-columns:1fr 1fr}
  .notes-grid figure:last-child{grid-column:span 2;aspect-ratio:4/3}
  .guide{grid-template-columns:1fr;gap:28px}
  .guide figure{max-width:none;aspect-ratio:4/3}
}
.plan-body ol.days{list-style:none;padding-left:0}

/* ボタン式のページ切り替え */
.site-head{flex-wrap:wrap;align-items:center}
.tabs{display:flex;flex-wrap:wrap;gap:8px}
.site-head .tabs a{border:1px solid var(--ink);background:rgba(248,249,243,.9);color:var(--ink);padding:6px 14px;font-size:.88rem;text-decoration:none;line-height:1.5}
.site-head .tabs a:hover{background:var(--label)}
.site-head .tabs a[aria-current="page"]{background:var(--ink);color:var(--label)}
.chapter.first,.notes.first{border-top:0;padding-top:24px}
.page-title{font-family:var(--hand);font-weight:600;font-size:clamp(1.9rem,4vw,2.8rem);line-height:1.3;margin:0 0 14px}
.soon{display:inline-block;background:var(--label);border:1px dashed var(--moss);padding:6px 12px;font-size:.9rem;color:var(--moss);margin:4px 0 0}
.next{margin:8px 0 56px;text-align:right}
.btn-next{display:inline-block;border:1px solid var(--ink);background:var(--ink);color:var(--label);padding:12px 22px;text-decoration:none;font-weight:500}
.btn-next:hover{background:var(--moss)}

/* トップの入口ボタン */
.doors{display:grid;grid-template-columns:repeat(3,1fr);gap:14px;padding:0 0 72px}
.door{position:relative;display:block;aspect-ratio:4/3;overflow:hidden;border:1px solid var(--ink);color:var(--label);text-decoration:none;background:var(--moss)}
.door img{position:absolute;inset:0;transition:transform .5s}
.door:hover img{transform:scale(1.04)}
.door::after{content:"";position:absolute;inset:0;background:linear-gradient(transparent 40%,rgba(30,42,32,.75))}
.door-t,.door-s{position:relative;z-index:1;display:block;padding:0 18px}
.door-t{position:absolute;left:0;bottom:40px;font-family:var(--hand);font-weight:600;font-size:1.9rem;line-height:1.2}
.door-s{position:absolute;left:0;bottom:14px;font-size:.88rem}
.door.small{aspect-ratio:auto;min-height:110px;background:rgba(248,249,243,.92);color:var(--ink)}
.door.small::after{display:none}
.door.small .door-t{font-size:1.4rem;bottom:38px}
.door.small:hover{background:var(--label)}
.doors .door.small:nth-of-type(4){grid-column:1/2}
.doors .door.small:nth-of-type(5){grid-column:2/4}
@media (prefers-reduced-motion:reduce){.door img{transition:none}}
@media (max-width:860px){
  .site-head{gap:12px}
  .tabs{gap:6px}
  .site-head .tabs a{padding:5px 10px;font-size:.82rem}
  .doors{grid-template-columns:1fr}
  .doors .door.small:nth-of-type(4),.doors .door.small:nth-of-type(5){grid-column:auto}
  .door{aspect-ratio:16/10}
}
.guide{border-top:0}
@media (max-width:860px){
  .tabs{flex-wrap:nowrap;overflow-x:auto;width:100%;padding-bottom:4px;-webkit-overflow-scrolling:touch}
  .site-head .tabs a{flex:0 0 auto}
}

/* 表紙の金文字（マットな箔押し） */
.cover{max-width:1240px;margin:0 auto;display:flex;justify-content:space-between;align-items:baseline;gap:16px;padding:26px clamp(20px,5vw,60px) 20px}
.cover-bottom{padding:22px clamp(20px,5vw,60px) 40px}
.foil{font-family:"Barlow Condensed","Arial Narrow",sans-serif;font-weight:600;text-transform:uppercase;letter-spacing:.12em;color:#BFA466;text-shadow:0 1px 0 rgba(0,0,0,.35)}
.foil.big{font-size:clamp(1.6rem,3.4vw,2.4rem);letter-spacing:.08em}
.foil.small{font-size:.92rem;font-weight:500}
@media (max-width:860px){.cover{padding:16px 14px 12px}.foil.small{font-size:.74rem;letter-spacing:.08em}}
.hero>div{min-width:0}
@media (max-width:860px){.hero{grid-template-columns:minmax(0,1fr)}.hero h1{font-size:clamp(1.6rem,7.4vw,2.4rem)}}

/* 1画面に収める調整 */
.cover-top{padding-top:8px;padding-bottom:6px}
.cover-top .foil.big{font-size:1.15rem;letter-spacing:.1em}
.cover-top .foil.small{font-size:.78rem}
.site-head{justify-content:flex-end;padding:14px 0}
.hero{padding:4px 0 48px;gap:48px;align-items:center}
.hero figure{height:min(620px,calc(100vh - 150px));width:auto;max-width:none;aspect-ratio:3/4.4;justify-self:end}
.hero .lede{max-width:32em}
@media (max-width:860px){
  .site-head{justify-content:flex-start}
  .hero figure{height:auto;width:100%;aspect-ratio:3/3.6;justify-self:stretch}
}
.hero h1{white-space:nowrap;font-size:clamp(1.6rem,3.4vw,3.1rem)}
@media (max-width:860px){.hero h1{font-size:clamp(1.5rem,7vw,2.3rem)}}

/* ===== カテゴリのナビ（ボタンをやめ、ノートの見出し風に） ===== */
.site-head .tabs{gap:4px 26px}
.site-head .tabs a{border:0;background:none;padding:4px 0;font-size:.98rem;color:var(--muted);letter-spacing:.08em;text-decoration:none;border-bottom:2px solid transparent}
.site-head .tabs a:hover{background:none;color:var(--ink);border-bottom-color:var(--rule)}
.site-head .tabs a[aria-current="page"]{background:none;color:var(--ink);border-bottom-color:#2F5A45}
footer a{color:var(--muted)}
.back{margin:8px 0 48px}
.back a{color:var(--moss)}

/* ===== 目次 ===== */
.toc{padding:8px 0 64px;max-width:820px}
.toc h2{font-family:var(--hand);font-weight:600;font-size:1.5rem;letter-spacing:.3em;margin:0 0 18px}
.toc ol{list-style:none;margin:0;padding:0}
.toc li a{display:grid;grid-template-columns:auto 1fr auto;align-items:baseline;gap:4px 12px;padding:14px 4px;color:var(--ink);text-decoration:none;border-bottom:1px solid rgba(64,118,176,.25)}
.toc li a:hover .toc-t{color:#2F5A45}
.toc-t{font-family:var(--hand);font-weight:600;font-size:1.35rem}
.toc-dots{border-bottom:2px dotted var(--rule);transform:translateY(-6px)}
.toc-n{font-family:"Barlow Condensed",sans-serif;color:var(--muted);letter-spacing:.06em}
.toc-d{grid-column:1/-1;font-size:.92rem;color:var(--muted)}

/* ===== 探索ページ共通（地図・系統樹・雲） ===== */
.explore{padding:6px 0 56px}
.explore-head p{margin:0 0 18px;color:var(--muted)}
.explore-body{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:24px;align-items:start}
.explore figure{margin:0}
.panel{background:rgba(251,251,247,.96);border:1px solid var(--ink);padding:18px 20px;min-height:180px;position:sticky;top:16px}
.panel .hint{color:var(--muted);margin:0}
.panel h2{font-family:var(--hand);font-weight:600;font-size:1.5rem;margin:0 0 10px;border-bottom:2px solid #2F5A45;display:inline-block}
.panel .arts{list-style:none;padding:0;margin:6px 0 14px}
.panel .arts li{margin:0 0 8px}
.panel .arts a{color:var(--ink);text-underline-offset:.25em;text-decoration-color:#2F5A45}
.panel .arts a::before{content:"";display:inline-block;width:8px;height:8px;background:#9b1c1c;border-radius:50%;margin-right:8px;transform:translateY(-1px)}
.panel .soon-h{font-size:.85rem;color:var(--muted);margin:10px 0 4px}
.panel .soonlist{margin:0;padding-left:1.2em;color:var(--muted);font-size:.92rem}
.panel.open{animation:panelIn .35s ease-out}
@keyframes panelIn{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}
@media (max-width:980px){.explore-body{grid-template-columns:1fr}.panel{position:static}}

/* ===== 古地図 ===== */
.map-frame{box-shadow:0 2px 0 rgba(0,0,0,.08),0 10px 24px rgba(60,40,10,.25);transform:rotate(-.4deg)}
.oldmap{display:block;width:100%;height:auto}
.oldmap .grat{fill:none;stroke:#8a6a3a;stroke-width:.5;stroke-dasharray:2 3;opacity:.45}
.oldmap .rimline{fill:none;stroke:#6b4518;stroke-width:1.2;opacity:.5}
.oldmap .coast2 path{fill:none;stroke:#7a5a32;stroke-width:9;opacity:.07}
.oldmap .coast1 path{fill:none;stroke:#7a5a32;stroke-width:4;opacity:.12}
.oldmap .land path{fill:#d3b779;stroke:#4a2e12;stroke-width:1.1;stroke-linejoin:round}
.oldmap .lake path{fill:#e6d3a3;stroke:#4a2e12;stroke-width:.9}
.oldmap .ml{font-family:"IM Fell English SC",serif;font-size:15px;fill:#4a2e12;text-anchor:middle;letter-spacing:.18em;opacity:.8}
.oldmap .ml.ocean{font-size:13px;font-style:italic;opacity:.55;letter-spacing:.3em}
.oldmap .cartouche{font-family:"IM Fell English SC",serif;font-size:14px;fill:#4a2e12;text-anchor:middle;letter-spacing:.25em;opacity:.7}
.oldmap .route{fill:none;stroke:#9b1c1c;stroke-width:2.4;stroke-dasharray:7 5;stroke-linecap:round}
.oldmap .route-reveal{stroke-dasharray:4000;stroke-dashoffset:4000;animation:draw 6s ease-in-out .4s forwards}
@keyframes draw{to{stroke-dashoffset:0}}
.oldmap .stops circle{fill:#9b1c1c;opacity:.85}
.oldmap .compass{opacity:.85}
.oldmap .c-ring{fill:none;stroke:#4a2e12;stroke-width:1.4}
.oldmap .c-ring.thin{stroke-width:.6;stroke-dasharray:1.5 2.5}
.oldmap .c-hub{fill:#e6d3a3;stroke:#4a2e12}
.oldmap .c-minor path{fill:#e6d3a3;stroke:#4a2e12;stroke-width:.8}
.oldmap .c-dark{fill:#4a2e12}
.oldmap .c-light{fill:#e6d3a3;stroke:#4a2e12;stroke-width:.8}
.oldmap .c-n{font-family:"IM Fell English SC",serif;font-size:20px;fill:#9b1c1c;text-anchor:middle}
.oldmap .c-s{font-family:"IM Fell English SC",serif;font-size:14px;fill:#4a2e12;text-anchor:middle}
.oldmap .spot{cursor:pointer;outline:none}
.oldmap .spot .dot{fill:#9b1c1c;stroke:#f3e6c4;stroke-width:2}
.oldmap .spot .ring{fill:none;stroke:#9b1c1c;stroke-width:1.5;opacity:.6;transform-box:fill-box;transform-origin:center;animation:pulse 2.4s ease-out infinite}
@keyframes pulse{0%{transform:scale(.5);opacity:.8}100%{transform:scale(1.5);opacity:0}}
.oldmap .spot .plate rect{fill:#f3e6c4;stroke:#4a2e12;stroke-width:1}
.oldmap .spot .plate text{font-family:"Shippori Mincho",serif;font-size:13px;fill:#2a1a08;text-anchor:middle;font-weight:600}
.oldmap .spot:hover .plate rect,.oldmap .spot:focus-visible .plate rect,.oldmap .spot.on .plate rect{fill:#4a2e12}
.oldmap .spot:hover .plate text,.oldmap .spot:focus-visible .plate text,.oldmap .spot.on .plate text{fill:#f3e6c4}

/* ===== 系統樹 ===== */
.tree-frame{background:rgba(251,251,247,.85);border:1px solid var(--rule)}
.tree{display:block;width:100%;height:auto}
.tree .br{fill:none;stroke:#1E2A20;stroke-width:2;stroke-linecap:round;stroke-dasharray:900;stroke-dashoffset:900;animation:draw 1.4s ease-out forwards;animation-delay:var(--d,0s)}
.tree .nd{fill:#1E2A20}
.tree .nd.root{fill:#2F5A45}
.tree .nl{font-family:"Shippori Mincho",serif;font-size:15px;fill:#4F5C4C;text-anchor:middle}
.tree .note{font-family:"IM Fell English SC",serif;font-size:22px;fill:#1E2A20;opacity:.75}
.tree .leaf{cursor:pointer;outline:none}
.tree .leaf rect{fill:#FBFBF7;stroke:#1E2A20}
.tree .leaf text{font-family:"Shippori Mincho",serif;font-size:16px;font-weight:600;fill:#1E2A20}
.tree .leaf:hover rect,.tree .leaf:focus-visible rect,.tree .leaf.on rect{fill:#2F5A45;stroke:#2F5A45}
.tree .leaf:hover text,.tree .leaf:focus-visible text,.tree .leaf.on text{fill:#FBFBF7}

/* ===== 雲 ===== */
.sky-frame{background:linear-gradient(#cfe0ec,#eef3f2 70%,rgba(251,251,247,.6));border:1px solid var(--rule)}
.sky{display:block;width:100%;height:auto}
.sky .cloud{cursor:pointer;outline:none}
.sky .cloud-in{opacity:0;animation:cloudIn 1.2s ease-out forwards,float 7s ease-in-out infinite;animation-delay:calc(var(--i)*.35s),calc(1.2s + var(--f))}
.sky .cloud path{fill:#fff;stroke:#9fb3c2;stroke-width:1.2;filter:drop-shadow(0 6px 8px rgba(80,110,130,.18))}
.sky .cloud text{font-family:"Shippori Mincho",serif;font-size:19px;font-weight:600;fill:#2b3d4a;text-anchor:middle}
.sky .cloud:hover path,.sky .cloud:focus-visible path,.sky .cloud.on path{fill:#f4f8fb;stroke:#2F5A45;stroke-width:2}
@keyframes cloudIn{from{opacity:0;transform:translateY(14px) scale(.96)}to{opacity:1;transform:none}}
@keyframes float{0%,100%{transform:translateY(0)}50%{transform:translateY(-7px)}}

/* ===== 効率化・日記 ===== */
.simple{padding:6px 0 64px;max-width:760px}
.entry-list{list-style:none;padding:0;margin:20px 0 0}
.entry-list li{display:flex;justify-content:space-between;gap:16px;padding:14px 4px;border-bottom:1px solid rgba(64,118,176,.25)}
.entry-list .t{font-family:var(--hand);font-weight:600;font-size:1.15rem}
.entry-list .s{font-size:.85rem;color:var(--muted)}

@media (prefers-reduced-motion:reduce){
  .oldmap .route-reveal,.tree .br{animation:none;stroke-dashoffset:0}
  .oldmap .spot .ring{animation:none}
  .sky .cloud-in{animation:none;opacity:1}
  .panel.open{animation:none}
}
.chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chips button{font:inherit;font-size:.9rem;background:rgba(251,251,247,.95);border:1px solid var(--rule);color:var(--ink);padding:6px 14px;cursor:pointer;border-radius:999px}
.chips button:hover{border-color:var(--ink)}
.chips button.on{background:#2F5A45;border-color:#2F5A45;color:#FBFBF7}
.chips button:focus-visible{outline:2px solid #2F5A45;outline-offset:2px}
.cover-bottom{flex-wrap:wrap}