*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
body{-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
@media (prefers-reduced-motion: reduce){*{animation:none!important;transition:none!important;scroll-behavior:auto!important}}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px}

:root{
  --bg:#fbf6ee;--ink:#2b2018;--accent:#c2622a;--accent2:#9c4a1c;--gold:#d99a3f;
  --soft:#f4e9d8;--card:#fffdf9;--line:#e8dcc7;--muted:#7a6a58;
  --foot-bg:#2b2018;--foot-fg:#f4e9d8;
  --ff-disp:'Zen Maru Gothic',sans-serif;--ff-body:'Zen Kaku Gothic New',sans-serif;--ff-serif:'Shippori Mincho',serif;
  --maxw:1080px;--radius:14px;
}
body{font-family:var(--ff-body);background:var(--bg);color:var(--ink);line-height:1.95;font-size:17px}
.shell{position:relative}

/* ===== Top bar (left-aligned, underline nav) ===== */
.tb{position:fixed;top:0;left:0;right:0;height:70px;display:flex;align-items:center;justify-content:space-between;padding:0 30px;background:rgba(251,246,238,.96);backdrop-filter:blur(8px);border-bottom:2px solid var(--soft);z-index:80}
.tb .logo{font-family:var(--ff-disp);font-weight:700;font-size:20px;color:var(--ink);display:flex;align-items:center;gap:9px}
.tb .logo::before{content:"";width:14px;height:14px;border-radius:4px;background:var(--accent);transform:rotate(45deg);display:inline-block}
.tb-nav ul{display:flex;align-items:center;gap:4px}
.tb-nav a{display:block;padding:9px 15px;color:var(--muted);font-size:14px;font-weight:500;border-radius:9px;transition:.22s;position:relative}
.tb-nav a:hover{color:var(--accent);background:var(--soft)}
.tb-nav li.is-active a{color:var(--accent);font-weight:700}
.tb-nav li.is-active a::after{content:"";position:absolute;left:15px;right:15px;bottom:3px;height:2px;background:var(--accent);border-radius:2px}
.shell{padding-top:70px}

.burger{display:none;width:44px;height:44px;background:none;border:none;cursor:pointer;flex-direction:column;justify-content:center;gap:5px;padding:9px;color:var(--accent)}
.burger span{display:block;height:2px;background:currentColor;transition:.3s;border-radius:2px}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.drawer{display:none}

/* ===== Home hero ===== */
.hero{max-width:var(--maxw);margin:0 auto;padding:74px 26px 44px;position:relative}
.hero .k{font-family:var(--ff-disp);color:var(--accent);font-weight:700;letter-spacing:.16em;font-size:13px;margin-bottom:20px}
.hero h1{font-family:var(--ff-serif);font-weight:700;font-size:clamp(28px,5.2vw,50px);line-height:1.5;letter-spacing:.02em;margin-bottom:26px}
.hero h1 .em{color:var(--accent);position:relative;white-space:nowrap}
.hero h1 .em::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:9px;background:var(--gold);opacity:.35;z-index:-1;border-radius:4px}
.hero .lede{max-width:60ch;color:var(--muted);font-size:18px}
.hero-note{margin-top:34px;background:var(--card);border:2px solid var(--soft);border-left:6px solid var(--accent);border-radius:var(--radius);padding:24px 28px;max-width:760px;font-weight:500}
.hero-note b{color:var(--accent2)}

/* ===== Feature cards (home) ===== */
.feat{max-width:var(--maxw);margin:0 auto;padding:36px 26px 30px}
.feat-h{font-family:var(--ff-disp);font-weight:700;font-size:22px;margin-bottom:8px;display:flex;align-items:center;gap:12px}
.feat-h::before{content:"";width:28px;height:3px;background:var(--accent);border-radius:2px}
.feat-sub{color:var(--muted);font-size:15px;margin-bottom:28px}
.feat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.fcard{background:var(--card);border:2px solid var(--line);border-radius:var(--radius);padding:28px 24px;transition:.25s;display:block}
.fcard:hover{transform:translateY(-5px);border-color:var(--accent);box-shadow:0 22px 40px -26px rgba(140,70,20,.5)}
.fcard .no{font-family:var(--ff-disp);font-weight:700;font-size:14px;color:var(--gold);letter-spacing:.1em;margin-bottom:14px}
.fcard .ic{width:52px;height:52px;border-radius:13px;background:var(--soft);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:25px;margin-bottom:16px}
.fcard h3{font-family:var(--ff-disp);font-weight:700;font-size:18px;margin-bottom:10px}
.fcard p{color:var(--muted);font-size:14.5px;line-height:1.85}
.fcard .go{margin-top:16px;color:var(--accent);font-weight:700;font-size:14px}

.home-cta{max-width:var(--maxw);margin:12px auto 0;padding:34px 26px 84px}
.cta-box{background:var(--foot-bg);color:var(--foot-fg);border-radius:20px;padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap}
.cta-box h2{font-family:var(--ff-disp);font-weight:700;font-size:clamp(20px,3vw,27px);line-height:1.6}
.cta-box .btn{background:var(--gold);color:#2b2018;font-family:var(--ff-disp);font-weight:700;padding:15px 30px;border-radius:40px;white-space:nowrap;transition:.2s}
.cta-box .btn:hover{background:#fff;transform:translateY(-2px)}

/* ===== Article pages ===== */
.page-main{max-width:860px;margin:0 auto;padding:66px 26px 84px}
.crumb{font-size:13px;color:var(--muted);margin-bottom:24px}
.crumb a:hover{color:var(--accent)}
.crumb span{margin:0 8px;opacity:.5}
.page-head{margin-bottom:46px;padding-bottom:30px;border-bottom:2px dashed var(--line)}
.page-head .eyebrow{font-family:var(--ff-disp);letter-spacing:.16em;font-size:12px;color:var(--accent);font-weight:700;margin-bottom:16px}
.page-head .eyebrow .step{background:var(--accent);color:#fff;padding:3px 10px;border-radius:20px;margin-right:10px}
.page-head h1{font-family:var(--ff-serif);font-weight:700;font-size:clamp(27px,4.6vw,40px);line-height:1.5;margin-bottom:18px}
.page-head .lead{color:var(--muted);font-size:17px}
.block{margin:0 0 46px}
.block h2{font-family:var(--ff-disp);font-weight:700;font-size:clamp(20px,3.3vw,27px);margin-bottom:20px;padding-left:18px;position:relative;line-height:1.5}
.block h2::before{content:"";position:absolute;left:0;top:.1em;bottom:.1em;width:6px;background:var(--accent);border-radius:3px}
.block p{margin-bottom:16px}
.block p strong{color:var(--accent2);font-weight:700}
.callout{background:var(--soft);border-radius:var(--radius);padding:22px 26px;margin:22px 0}
.callout .ct{font-family:var(--ff-disp);font-weight:700;color:var(--accent2);margin-bottom:6px;font-size:15px}
.callout p{margin:0;font-size:15.5px}

/* prev/next nav */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:56px;padding-top:30px;border-top:2px dashed var(--line)}
.pager a{background:var(--card);border:2px solid var(--line);border-radius:var(--radius);padding:18px 22px;transition:.22s}
.pager a:hover{border-color:var(--accent);transform:translateY(-3px)}
.pager .dir{font-size:12px;color:var(--muted);font-weight:700;margin-bottom:6px}
.pager .ttl{font-family:var(--ff-disp);font-weight:700;color:var(--accent)}
.pager .next{text-align:right}
@media(max-width:620px){.pager{grid-template-columns:1fr}}

/* ===== Sitemap (list form) ===== */
.sitemap-page .sm-list{border-top:2px solid var(--line)}
.sm-list li{border-bottom:2px solid var(--line)}
.sm-list a{display:flex;gap:20px;align-items:flex-start;padding:26px 6px;transition:.2s}
.sm-list a:hover{background:var(--soft);padding-left:16px}
.sm-list .sm-no{font-family:var(--ff-disp);font-weight:700;color:var(--gold);font-size:22px;min-width:44px;line-height:1.3}
.sm-list .sm-body{flex:1}
.sm-list .sm-ttl{font-family:var(--ff-disp);font-weight:700;font-size:19px;color:var(--ink);margin-bottom:5px;display:flex;align-items:center;gap:10px}
.sm-list .sm-ttl .arrow{color:var(--accent);transition:.2s}
.sm-list a:hover .sm-ttl .arrow{transform:translateX(4px)}
.sm-list .sm-desc{color:var(--muted);font-size:14.5px;line-height:1.8}

/* ===== Footer ===== */
.site-footer{background:var(--foot-bg);color:var(--foot-fg);margin-top:72px}
.site-footer a{color:inherit;opacity:.82;transition:.2s}
.site-footer a:hover{opacity:1;color:var(--gold)}
.ft-in{max-width:var(--maxw);margin:0 auto;padding:56px 26px 26px;display:grid;grid-template-columns:1.5fr 1fr;gap:40px}
.ft-name{font-family:var(--ff-disp);font-weight:700;font-size:22px;margin-bottom:10px;display:flex;align-items:center;gap:9px}
.ft-name::before{content:"";width:13px;height:13px;border-radius:4px;background:var(--gold);transform:rotate(45deg)}
.ft-tag{opacity:.72;font-size:14px;max-width:34ch}
.ft-nav ul{display:grid;grid-template-columns:1fr 1fr;gap:11px 24px;font-size:14px}
.ft-copy{text-align:center;padding:18px;font-size:12px;opacity:.55;border-top:1px solid rgba(255,255,255,.12)}
@media(max-width:700px){.ft-in{grid-template-columns:1fr;gap:26px}}

.to-top{position:fixed;right:22px;bottom:22px;width:48px;height:48px;border-radius:13px;background:var(--accent);color:#fff;display:flex;align-items:center;justify-content:center;font-size:20px;opacity:0;pointer-events:none;transform:translateY(12px);transition:.3s;z-index:60;box-shadow:0 10px 24px -10px rgba(140,70,20,.7)}
.to-top.show{opacity:1;pointer-events:auto;transform:none}
.reveal{opacity:0;transform:translateY(26px);transition:opacity .7s ease,transform .7s ease}
.reveal.in{opacity:1;transform:none}

@media(max-width:860px){
  .tb-nav{display:none}
  .burger{display:flex}
  .drawer.open{display:block;position:absolute;top:70px;left:0;right:0;background:var(--card);border-bottom:2px solid var(--line);box-shadow:0 14px 24px -14px rgba(0,0,0,.3)}
  .drawer.open ul{flex-direction:column;padding:8px 26px 18px}
  .drawer.open li{padding:0}
  .drawer.open a{display:block;padding:13px 0;border-top:1px solid var(--line);font-weight:500}
  .drawer.open li.is-active a{color:var(--accent);font-weight:700}
  .feat-grid{grid-template-columns:1fr}
  .cta-box{padding:32px 26px}
}