/* ============================================================
   JAPAN.GO.JP — 日本の一年 · Japan, Told in Seasons
   Design system: washi paper, sumi ink, shu vermillion, gold;
   seasonal palettes; vertical Japanese typography; gate motifs.
   ============================================================ */

:root{
  --paper:#f6f1e7;
  --paper-2:#efe8da;
  --ink:#1b1917;
  --ink-soft:#4a453e;
  --ink-faint:#8a8177;
  --shu:#b3292f;
  --shu-deep:#8f1d23;
  --gold:#a8832f;
  --line:rgba(27,25,23,.14);
  --serif:"Shippori Mincho","Hiragino Mincho ProN",serif;
  --sans:"Noto Sans JP","Hiragino Kaku Gothic ProN",system-ui,sans-serif;
  --latin:"Cormorant Garamond","Shippori Mincho",serif;
  --ease-out:cubic-bezier(.16,1,.3,1);
  --ease-soft:cubic-bezier(.4,0,.2,1);
  --gutter:clamp(20px,4.5vw,72px);
  /* seasonal accents (spring default) */
  --season:#c96b7f;
  --season-2:#e7b6c0;
  --season-ink:#3d2230;
  --season-bg:#f7efe9;
}
body[data-season="spring"]{--season:#c96b7f;--season-2:#eec3cc;--season-ink:#3d2230;--season-bg:#f7efe9}
body[data-season="summer"]{--season:#1f4d8f;--season-2:#d9a441;--season-ink:#101d33;--season-bg:#eef0f4}
body[data-season="autumn"]{--season:#b4482c;--season-2:#e2b04a;--season-ink:#3a2114;--season-bg:#f6efe4}
body[data-season="winter"]{--season:#4d6f8f;--season-2:#c8d6e2;--season-ink:#182733;--season-bg:#eef2f4}

*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;overflow-x:hidden;overflow-x:clip}
html:focus-within{scroll-behavior:smooth}
body{
  font-family:var(--serif);
  background:var(--paper);
  color:var(--ink);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
  transition:background 1.2s var(--ease-soft);
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
::selection{background:var(--shu);color:var(--paper)}

.v-text{writing-mode:vertical-rl;text-orientation:upright;letter-spacing:.18em}
.anchor-offset{position:relative;top:-72px}
section[id]{scroll-margin-top:70px}

/* ---------- texture: seigaiha waves ---------- */
.seigaiha{
  background-image:radial-gradient(circle at 50% 120%,transparent 62%,var(--line) 62.5%,transparent 63%),
                   radial-gradient(circle at 0% 120%,transparent 62%,var(--line) 62.5%,transparent 63%),
                   radial-gradient(circle at 100% 120%,transparent 62%,var(--line) 62.5%,transparent 63%);
  background-size:44px 22px;background-position:0 0,22px 0,22px 0;
}

/* ============ PRELOADER ============ */
.preloader{
  position:fixed;inset:0;z-index:200;display:grid;place-items:center;
  background:var(--paper);transition:opacity .9s var(--ease-soft),visibility .9s;
}
.preloader.is-done{opacity:0;visibility:hidden}
.preloader-seal{display:grid;place-items:center;gap:22px}
.seal-stamp{
  display:grid;place-items:center;width:104px;height:104px;
  background:var(--shu);color:#fdf8ee;font-size:40px;font-family:var(--serif);
  border-radius:16px;letter-spacing:.05em;line-height:1;
  transform:scale(1.6);opacity:0;
  animation:stamp .8s var(--ease-out) .15s forwards;
  box-shadow:0 18px 50px rgba(179,41,47,.35);
}
@keyframes stamp{to{transform:scale(1);opacity:1}}
.preloader-word{
  font-family:var(--sans);font-size:11px;letter-spacing:.5em;color:var(--ink-soft);
  opacity:0;animation:fadein 1s var(--ease-soft) .7s forwards;
}
@keyframes fadein{to{opacity:1}}

/* ============ CURSOR ============ */
.cursor{position:fixed;z-index:190;pointer-events:none;top:0;left:0;opacity:0;transition:opacity .4s}
body.cursor-on .cursor{opacity:1}
.cursor-dot,.cursor-ring{position:absolute;border-radius:50%;transform:translate(-50%,-50%)}
.cursor-dot{width:6px;height:6px;background:var(--season);transition:background 1s}
.cursor-ring{
  width:34px;height:34px;border:1px solid var(--season);
  transition:width .35s var(--ease-out),height .35s var(--ease-out),background 1s,border-color 1s;
}
body.cursor-link .cursor-ring{width:52px;height:52px;border-color:var(--season-2)}
@media (hover:none),(pointer:coarse){.cursor{display:none}}

/* ============ ATMOSPHERE CANVAS ============ */
#atmosphere{position:fixed;inset:0;z-index:1;pointer-events:none}

/* ============ HEADER ============ */
.site-head{
  position:fixed;top:0;left:0;right:0;z-index:100;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:14px var(--gutter);
  transition:background .5s var(--ease-soft),box-shadow .5s,padding .5s;
}
.site-head.is-scrolled{
  background:color-mix(in srgb,var(--paper) 88%,transparent);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:0 1px 0 var(--line);padding:9px var(--gutter);
}
.brand{display:flex;align-items:center;gap:12px}
.brand-seal{
  display:grid;place-items:center;width:40px;height:40px;flex:none;
  background:var(--shu);color:#fdf8ee;font-family:var(--serif);font-size:19px;
  border-radius:8px;line-height:1;transition:transform .5s var(--ease-out);
}
.brand:hover .brand-seal{transform:rotate(-8deg)}
.brand-seal.large{width:58px;height:58px;font-size:26px;border-radius:12px}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-family:var(--sans);font-size:13px;letter-spacing:.22em;font-weight:700}
.brand-text small{font-family:var(--sans);font-size:10px;letter-spacing:.08em;color:var(--ink-faint)}
.site-nav{display:flex;gap:clamp(14px,2.4vw,38px)}
.site-nav a{
  display:flex;align-items:baseline;gap:7px;font-family:var(--sans);
  font-size:12.5px;letter-spacing:.14em;color:var(--ink-soft);position:relative;padding:6px 2px;
}
.site-nav a i{font-style:normal;font-family:var(--serif);color:var(--season);transition:color 1s}
.site-nav a::after{
  content:"";position:absolute;left:0;bottom:0;height:1px;width:0;background:var(--season);
  transition:width .45s var(--ease-out);
}
.site-nav a:hover::after,.site-nav a.is-current::after{width:100%}
.head-tools{display:flex;align-items:center;gap:16px}
.season-chip{
  display:flex;align-items:center;gap:8px;font-family:var(--sans);font-size:11px;
  letter-spacing:.12em;color:var(--ink-soft);
  border:1px solid var(--line);border-radius:999px;padding:6px 14px 6px 10px;
  background:color-mix(in srgb,var(--paper) 70%,transparent);
}
.season-dot{width:8px;height:8px;border-radius:50%;background:var(--season);transition:background 1s;box-shadow:0 0 0 3px color-mix(in srgb,var(--season) 22%,transparent)}
.lang-toggle{display:flex;align-items:center;gap:5px;font-family:var(--sans);font-size:11.5px;letter-spacing:.1em;color:var(--ink-faint)}
.lang-opt.is-on{color:var(--shu);font-weight:700}
.lang-sep{opacity:.4}
.menu-btn{display:none;flex-direction:column;justify-content:center;gap:6px;padding:14px 10px;min-height:44px;min-width:44px;align-items:center}
.menu-btn span{display:block;width:26px;height:1.6px;background:var(--ink);transition:transform .4s var(--ease-out),opacity .3s}
.menu-btn[aria-expanded="true"] span:first-child{transform:translateY(3.8px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:last-child{transform:translateY(-3.8px) rotate(-45deg)}

/* ============ MOBILE NAV ============ */
.mobile-nav{
  position:fixed;inset:0;z-index:95;background:color-mix(in srgb,var(--paper) 96%,transparent);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  display:grid;place-items:center;opacity:0;visibility:hidden;transition:opacity .5s var(--ease-soft),visibility .5s;
}
.mobile-nav.is-open{opacity:1;visibility:visible}
.mobile-nav-inner{display:grid;gap:10px;text-align:center}
.mobile-nav-kicker{font-family:var(--sans);font-size:11px;letter-spacing:.4em;color:var(--ink-faint);margin-bottom:18px}
.mobile-nav a{
  font-family:var(--serif);font-size:clamp(26px,7vw,34px);padding:10px;
  display:flex;align-items:baseline;gap:16px;justify-content:center;
  opacity:0;transform:translateY(18px);transition:opacity .6s var(--ease-out),transform .6s var(--ease-out);
}
.mobile-nav.is-open a{opacity:1;transform:none}
.mobile-nav a:nth-child(2){transition-delay:.06s}.mobile-nav a:nth-child(3){transition-delay:.12s}
.mobile-nav a:nth-child(4){transition-delay:.18s}.mobile-nav a:nth-child(5){transition-delay:.24s}
.mobile-nav a em{font-style:normal;font-size:.55em;color:var(--season)}
.mobile-nav-foot{display:flex;gap:18px;justify-content:center;margin-top:34px;font-family:var(--sans);font-size:11px;letter-spacing:.2em;color:var(--ink-faint)}

/* ============ HERO ============ */
.hero{position:relative;min-height:100svh;display:flex;align-items:center;overflow:hidden}
.hero-media{position:absolute;inset:-6%;z-index:0}
.hero-media img{width:100%;height:100%;object-fit:cover;animation:kenburns 26s var(--ease-soft) infinite alternate}
@keyframes kenburns{from{transform:scale(1) translateY(0)}to{transform:scale(1.09) translateY(-2%)}}
.hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(100deg,color-mix(in srgb,var(--paper) 92%,transparent) 0%,color-mix(in srgb,var(--paper) 62%,transparent) 34%,transparent 62%),
             linear-gradient(to top,var(--paper) 0%,transparent 26%);
}
.hero-inner{position:relative;z-index:2;padding:120px var(--gutter) 140px;max-width:960px}
.hero-kicker{
  font-family:var(--sans);font-size:11px;letter-spacing:.34em;color:var(--ink-soft);
  text-transform:uppercase;margin-bottom:34px;
}
.hero-title{position:relative;display:flex;align-items:flex-start;gap:clamp(20px,4vw,60px)}
.hero-title-en{
  font-family:var(--serif);font-weight:600;font-size:clamp(46px,7.4vw,104px);
  line-height:1.08;letter-spacing:.01em;color:var(--ink);
}
.hero-title-en em{font-family:var(--latin);font-style:italic;font-weight:500;color:var(--shu)}
.hero-title-jp{
  font-family:var(--serif);font-weight:700;font-size:clamp(30px,4.6vw,64px);
  color:var(--season);transition:color 1s;padding-top:8px;
}
.hero-dek{
  max-width:46ch;margin-top:34px;font-size:clamp(14.5px,1.35vw,17.5px);
  color:var(--ink-soft);
}
.hero-actions{display:flex;gap:16px;margin-top:40px;flex-wrap:wrap}
.btn{
  display:inline-flex;align-items:center;gap:10px;font-family:var(--sans);
  font-size:13px;letter-spacing:.14em;padding:15px 28px;border-radius:999px;
  transition:transform .45s var(--ease-out),box-shadow .45s,background .45s,color .45s;
}
.btn svg{transition:transform .45s var(--ease-out)}
.btn:hover svg{transform:translateX(5px)}
.btn-primary{background:var(--shu);color:#fdf8ee;box-shadow:0 12px 32px rgba(179,41,47,.28)}
.btn-primary:hover{transform:translateY(-3px);background:var(--shu-deep);box-shadow:0 18px 40px rgba(143,29,35,.34)}
.btn-ghost{border:1px solid var(--ink);color:var(--ink)}
.btn-ghost:hover{transform:translateY(-3px);background:var(--ink);color:var(--paper)}
.hero-seasons{
  position:absolute;z-index:2;right:var(--gutter);bottom:44px;display:flex;gap:10px;
}
.hero-seasons a{
  display:grid;place-items:center;gap:2px;min-width:86px;padding:14px 12px;
  border:1px solid color-mix(in srgb,var(--ink) 18%,transparent);border-radius:14px;
  background:color-mix(in srgb,var(--paper) 72%,transparent);backdrop-filter:blur(8px);
  transition:transform .45s var(--ease-out),border-color .45s,background .45s;
}
.hero-seasons a:hover{transform:translateY(-6px);border-color:var(--season)}
.hero-seasons b{font-family:var(--serif);font-size:24px;color:var(--season);font-weight:700}
.hero-seasons span{font-family:var(--sans);font-size:11px;letter-spacing:.14em}
.hero-seasons i{font-style:italic;font-family:var(--latin);font-size:11px;color:var(--ink-faint)}
.scroll-cue{
  position:absolute;z-index:2;left:var(--gutter);bottom:0;
  display:flex;flex-direction:column;align-items:center;gap:12px;
}
.scroll-cue-line{width:1px;height:72px;background:var(--ink-faint);position:relative;overflow:hidden}
.scroll-cue-line::after{
  content:"";position:absolute;left:0;top:-40%;width:100%;height:40%;background:var(--shu);
  animation:cue 2.2s var(--ease-soft) infinite;
}
@keyframes cue{to{top:110%}}
.scroll-cue-word{font-family:var(--sans);font-size:10px;letter-spacing:.3em;color:var(--ink-faint);writing-mode:vertical-rl}

/* ============ GATES ============ */
.gate{
  position:relative;height:clamp(220px,38vh,380px);display:grid;place-items:center;
  overflow:hidden;overflow:clip;z-index:3;margin:-30px 0;
}
.gate-frame{position:relative;width:min(560px,78vw);height:100%}
.gate-pillar{
  position:absolute;bottom:0;width:5.5%;height:78%;background:var(--shu);
  border-radius:6px 6px 0 0;
}
.gate-pillar.left{left:12%;transform:skewX(-2.5deg)}
.gate-pillar.right{right:12%;transform:skewX(2.5deg)}
.gate-lintel{
  position:absolute;left:0;right:0;top:8%;height:9%;background:var(--shu);
  border-radius:8px;
}
.gate-lintel::before,.gate-lintel::after{
  content:"";position:absolute;top:-38%;width:6%;height:150%;background:var(--shu);border-radius:6px;
}
.gate-lintel::before{left:-2.5%;transform:rotate(-14deg)}
.gate-lintel::after{right:-2.5%;transform:rotate(14deg)}
.gate-lintel.second{top:26%;left:7%;right:7%;height:6.5%;opacity:.92}
.gate-lintel.second::before,.gate-lintel.second::after{display:none}
.gate-plaque{
  position:absolute;top:30%;left:50%;transform:translateX(-50%);
  background:var(--ink);color:var(--paper);font-family:var(--serif);
  font-size:clamp(18px,2.6vw,28px);padding:.55em .34em;line-height:1.1;
  writing-mode:vertical-rl;border-radius:4px;box-shadow:0 8px 26px rgba(27,25,23,.3);
}
.gate-frame{transform-origin:50% 100%;will-change:transform,opacity}

/* ============ SECTION SCAFFOLD ============ */
.section-head{padding:clamp(70px,10vw,130px) var(--gutter) clamp(30px,4vw,54px);max-width:1240px;margin:0 auto}
.section-kicker{font-family:var(--sans);font-size:11px;letter-spacing:.34em;color:var(--season);margin-bottom:18px;transition:color 1s}
.section-title{font-size:clamp(34px,4.6vw,62px);font-weight:600;line-height:1.15;letter-spacing:.01em}
.section-dek{max-width:56ch;margin-top:18px;color:var(--ink-soft);font-size:clamp(14px,1.2vw,16.5px)}

.kicker{
  display:flex;align-items:center;gap:12px;flex-wrap:wrap;
  font-family:var(--sans);font-size:10.5px;letter-spacing:.22em;color:var(--ink-faint);
  text-transform:uppercase;margin-bottom:12px;
}
.kicker-tag{color:var(--season);transition:color 1s}
.kicker time,.kicker .region-pref{letter-spacing:.14em}
.kicker.light{color:rgba(253,248,238,.72)}
.kicker.light .kicker-tag{color:#f0c26b}

.text-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:14px;
  font-family:var(--sans);font-size:12px;letter-spacing:.16em;color:var(--shu);
}
.text-link i{font-style:normal;transition:transform .4s var(--ease-out)}
article:hover .text-link i,.text-link:hover i{transform:translateX(5px)}
.text-link.light{color:#f0c26b}

/* ============ SEASON CHAPTERS ============ */
.season{padding:clamp(60px,8vw,110px) var(--gutter) clamp(50px,6vw,90px);position:relative;z-index:2}
.season-head{
  display:grid;grid-template-columns:auto 1fr;gap:clamp(22px,4vw,64px);
  align-items:start;max-width:1240px;margin:0 auto clamp(40px,6vw,80px);
  position:relative;
}
.season-num{
  grid-row:1/3;font-family:var(--sans);font-size:11px;letter-spacing:.4em;
  color:var(--ink-faint);padding-top:10px;
}
.season-title{display:flex;align-items:flex-start;gap:clamp(18px,3.4vw,52px)}
.season-title-jp{
  font-weight:800;font-size:clamp(58px,8.6vw,120px);line-height:1;color:var(--season);
  transition:color 1s;
}
.season-title-jp small{display:block;font-size:.16em;letter-spacing:.5em;color:var(--ink-faint);margin-top:12px}
.season-title-en{font-size:clamp(30px,4vw,54px);font-weight:600;line-height:1.18;padding-top:12px}
.season-title-en em{display:block;font-family:var(--latin);font-style:italic;font-weight:500;font-size:.55em;color:var(--ink-soft);margin-top:10px}
.season-dek{grid-column:2;max-width:62ch;color:var(--ink-soft);font-size:clamp(14px,1.2vw,16.5px)}

/* chapter grids */
.chapter-grid{
  display:grid;grid-template-columns:1.15fr .95fr;grid-template-rows:auto auto;
  gap:clamp(18px,2.6vw,34px);max-width:1240px;margin:0 auto;
}
.chapter-grid.three{grid-template-columns:repeat(3,1fr);grid-template-rows:auto}
.chapter-grid .feature-stack{display:grid;gap:clamp(18px,2.6vw,34px);align-content:start}

/* cards */
.policy-card,.story-card,.region-card{
  background:#fffdf8;border:1px solid var(--line);border-radius:20px;overflow:hidden;
  transition:transform .55s var(--ease-out),box-shadow .55s,border-color .55s;
}
.policy-card:hover,.story-card:hover,.region-card:hover{
  transform:translateY(-7px);border-color:color-mix(in srgb,var(--season) 45%,transparent);
  box-shadow:0 26px 60px -18px rgba(27,25,23,.22);
}
.policy-card figure{height:clamp(240px,30vw,380px);overflow:hidden}
.policy-card figure img{width:100%;height:115%;object-fit:cover;will-change:transform}
.policy-body{padding:clamp(22px,2.6vw,36px)}
.policy-body h3,.story-card h3,.region-body h3{
  font-size:clamp(19px,1.8vw,25px);font-weight:600;line-height:1.35;margin-bottom:10px;
}
.policy-body p,.story-card p,.region-body p{font-size:14.5px;color:var(--ink-soft)}
.story-card{display:grid;grid-template-columns:36% 1fr}
.chapter-grid.three .story-card{grid-template-columns:1fr}
.story-card figure{overflow:hidden;min-height:150px}
.story-card figure img{width:100%;height:115%;object-fit:cover;will-change:transform}
.chapter-grid.three .story-card figure{height:clamp(180px,20vw,250px)}
.story-card>div{padding:clamp(18px,2vw,28px)}
.story-card.tall{grid-template-columns:1fr}
.story-card.tall figure{height:clamp(240px,30vw,400px)}
.region-card{grid-column:1/-1;display:grid;grid-template-columns:.9fr 1.1fr}
.region-card figure{overflow:hidden;min-height:280px}
.region-card figure img{width:100%;height:115%;object-fit:cover}
.region-body{padding:clamp(24px,3vw,44px)}
.fact-list{list-style:none;margin-top:18px;display:grid;gap:9px}
.fact-list li{
  font-family:var(--sans);font-size:12.5px;color:var(--ink-soft);letter-spacing:.03em;
  padding-left:18px;position:relative;
}
.fact-list li::before{content:"";position:absolute;left:0;top:.62em;width:7px;height:7px;border-radius:50%;background:var(--season);transition:background 1s}
.fact-list b{font-family:var(--serif);font-size:17px;color:var(--ink);margin-right:7px}

/* full-bleed banner */
.feature-banner{
  position:relative;max-width:1240px;margin:0 auto clamp(40px,5vw,70px);
  border-radius:24px;overflow:hidden;min-height:clamp(380px,54vh,560px);
  display:flex;align-items:flex-end;
}
.feature-banner figure{position:absolute;inset:0}
.feature-banner img{width:100%;height:115%;object-fit:cover;will-change:transform}
.feature-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(13,11,10,.82) 6%,rgba(13,11,10,.28) 45%,transparent 72%);
}
.feature-banner-body{position:relative;z-index:2;padding:clamp(26px,4vw,54px);max-width:640px;color:#fdf8ee}
.feature-banner-body h3{font-size:clamp(24px,3vw,40px);font-weight:600;line-height:1.25;margin-bottom:14px}
.feature-banner-body p{font-size:clamp(13.5px,1.15vw,15.5px);color:rgba(253,248,238,.85)}

/* policy strip */
.policy-strip{
  max-width:1240px;margin:clamp(36px,5vw,64px) auto 0;
  display:flex;gap:clamp(18px,3vw,40px);align-items:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:clamp(18px,2.4vw,30px) 0;
}
.policy-strip-mark{
  flex:none;font-family:var(--serif);font-weight:700;font-size:clamp(17px,1.6vw,22px);
  color:var(--season);transition:color 1s;letter-spacing:.12em;
}
.policy-strip p{font-size:clamp(13.5px,1.15vw,15.5px);color:var(--ink-soft)}
.policy-strip a{color:var(--shu);font-family:var(--sans);font-size:.88em;letter-spacing:.08em;white-space:nowrap}

/* ============ THREADS ============ */
.threads{background:var(--paper-2);position:relative;z-index:2;padding-bottom:clamp(70px,9vw,120px)}
.threads::before{
  content:"";position:absolute;inset:0;opacity:.5;pointer-events:none;
  background-image:radial-gradient(circle at 50% 118%,transparent 62%,var(--line) 62.5%,transparent 63%);
  background-size:56px 28px;
}
.thread-tabs{
  display:flex;gap:10px;flex-wrap:wrap;max-width:1240px;margin:0 auto clamp(30px,4vw,50px);
  padding:0 var(--gutter);position:relative;z-index:2;
}
.thread-tab{
  display:flex;flex-direction:column;align-items:flex-start;gap:1px;
  border:1px solid var(--line);border-radius:16px;padding:13px 22px;
  font-family:var(--serif);font-size:19px;background:color-mix(in srgb,var(--paper) 60%,transparent);
  transition:all .4s var(--ease-out);
}
.thread-tab span{font-family:var(--sans);font-size:10px;letter-spacing:.22em;color:var(--ink-faint);text-transform:uppercase}
.thread-tab:hover{transform:translateY(-3px);border-color:var(--season)}
.thread-tab.is-active{background:var(--ink);color:var(--paper);border-color:var(--ink)}
.thread-tab.is-active span{color:var(--season-2)}
.story-index{
  display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(16px,2vw,26px);
  max-width:1240px;margin:0 auto;padding:0 var(--gutter);position:relative;z-index:2;
}
.index-card{
  background:#fffdf8;border:1px solid var(--line);border-radius:18px;overflow:hidden;
  transition:transform .5s var(--ease-out),box-shadow .5s,opacity .45s var(--ease-soft),border-color .5s;
}
.index-card.is-hidden{display:none}
.index-card:hover{transform:translateY(-6px);box-shadow:0 22px 48px -16px rgba(27,25,23,.2);border-color:color-mix(in srgb,var(--season) 45%,transparent)}
.index-card figure{height:clamp(150px,15vw,200px);overflow:hidden}
.index-card figure img{width:100%;height:100%;object-fit:cover;transition:transform .8s var(--ease-out)}
.index-card:hover figure img{transform:scale(1.06)}
.index-body{padding:clamp(16px,1.8vw,24px)}
.index-body h3{font-size:16.5px;font-weight:600;line-height:1.45;margin-bottom:8px}
.index-body p{font-size:13px;color:var(--ink-soft)}
.index-season{color:var(--ink-faint)}
.index-empty{max-width:1240px;margin:26px auto 0;padding:0 var(--gutter);font-family:var(--sans);font-size:13px;color:var(--ink-faint)}

/* ============ NEWS ============ */
.news{position:relative;z-index:2;padding-bottom:clamp(70px,9vw,120px)}
.news-lead{
  display:grid;grid-template-columns:1.05fr .95fr;max-width:1240px;
  margin:0 auto clamp(34px,4vw,54px);padding:0 var(--gutter);gap:clamp(20px,3vw,44px);
  align-items:stretch;
}
.news-lead figure{border-radius:20px;overflow:hidden;height:clamp(320px,36vw,470px)}
.news-lead figure img{width:100%;height:115%;object-fit:cover;will-change:transform}
.news-lead-body{
  border:1px solid var(--line);border-radius:20px;background:#fffdf8;
  padding:clamp(24px,3vw,44px);display:flex;flex-direction:column;justify-content:center;
}
.news-lead-body h3{font-size:clamp(21px,2.2vw,30px);font-weight:600;line-height:1.35;margin-bottom:14px}
.news-lead-body p{color:var(--ink-soft);font-size:14.5px}
.news-filters{
  display:flex;gap:8px;flex-wrap:wrap;max-width:1240px;margin:0 auto 26px;padding:0 var(--gutter);
}
.news-filter{
  font-family:var(--sans);font-size:12px;letter-spacing:.12em;padding:10px 20px;
  border:1px solid var(--line);border-radius:999px;color:var(--ink-soft);
  transition:all .35s var(--ease-out);
}
.news-filter:hover{border-color:var(--season);color:var(--ink)}
.news-filter.is-active{background:var(--season);border-color:var(--season);color:#fdf8ee}
.news-list{list-style:none;max-width:1240px;margin:0 auto;padding:0 var(--gutter)}
.news-item{
  display:grid;grid-template-columns:110px 1fr auto;gap:clamp(14px,2.4vw,34px);
  align-items:baseline;padding:clamp(18px,2.4vw,28px) 6px;border-top:1px solid var(--line);
  transition:background .4s,opacity .4s var(--ease-soft),transform .4s var(--ease-out);
  border-radius:10px;
}
.news-item:last-child{border-bottom:1px solid var(--line)}
.news-item:hover{background:color-mix(in srgb,var(--season) 7%,transparent)}
.news-item.is-hidden{display:none}
.news-item time{font-family:var(--sans);font-size:12px;letter-spacing:.1em;color:var(--ink-faint)}
.news-item h3{font-size:clamp(15.5px,1.5vw,19px);font-weight:600;line-height:1.5;margin-bottom:6px}
.news-item p{font-size:13px;color:var(--ink-soft)}
.news-cat{
  font-family:var(--sans);font-size:10px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--season);border:1px solid color-mix(in srgb,var(--season) 40%,transparent);
  border-radius:999px;padding:5px 13px;white-space:nowrap;transition:color 1s,border-color 1s;
}
.news-empty{max-width:1240px;margin:24px auto 0;padding:0 var(--gutter);font-family:var(--sans);font-size:13px;color:var(--ink-faint)}

/* ============ SERVICES ============ */
.services{
  position:relative;z-index:2;background:var(--ink);color:var(--paper);
  padding-bottom:clamp(80px,10vw,140px);
}
.services .section-title{color:var(--paper)}
.services .section-dek{color:rgba(246,241,231,.66)}
.services .section-kicker{color:var(--gold)}
.stone-tabs{
  display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(12px,1.8vw,22px);
  max-width:1240px;margin:0 auto clamp(40px,5vw,64px);padding:0 var(--gutter);
}
.stone-tab{
  text-align:left;border:1px solid rgba(246,241,231,.2);border-radius:18px;
  padding:clamp(18px,2.2vw,28px);display:grid;gap:3px;background:rgba(246,241,231,.04);
  transition:all .45s var(--ease-out);
}
.stone-tab em{font-style:normal;font-family:var(--serif);font-size:15px;color:var(--gold);letter-spacing:.2em}
.stone-tab strong{font-family:var(--serif);font-weight:600;font-size:clamp(19px,1.9vw,26px)}
.stone-tab span{font-family:var(--sans);font-size:11px;letter-spacing:.12em;color:rgba(246,241,231,.55)}
.stone-tab:hover{transform:translateY(-4px);border-color:rgba(246,241,231,.5)}
.stone-tab.is-active{background:var(--paper);color:var(--ink);border-color:var(--paper)}
.stone-tab.is-active em{color:var(--shu)}
.stone-tab.is-active span{color:var(--ink-faint)}
.stone-paths{max-width:1240px;margin:0 auto;padding:0 var(--gutter)}
.stone-path{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(14px,1.8vw,24px)}
.stone-path[hidden]{display:none}
.stone{
  position:relative;border-radius:46% 54% 52% 48%/ 38% 42% 58% 62%;
  background:linear-gradient(160deg,#3a372f,#2a2823 60%,#232119);
  border:1px solid rgba(246,241,231,.14);
  padding:clamp(26px,2.6vw,38px) clamp(20px,2vw,30px);
  min-height:clamp(240px,24vw,300px);
  display:flex;flex-direction:column;justify-content:flex-end;gap:8px;
  transform:translateY(calc(var(--i)*14px));
  transition:transform .5s var(--ease-out),background .5s,border-color .5s,box-shadow .5s;
}
.stone b{font-family:var(--serif);font-weight:700;color:var(--gold);font-size:13px;letter-spacing:.14em}
.stone h3{font-size:clamp(17px,1.6vw,21px);font-weight:600}
.stone p{font-size:12.8px;color:rgba(246,241,231,.62);line-height:1.65}
.stone-go{font-family:var(--sans);font-size:11px;letter-spacing:.16em;color:var(--gold);margin-top:6px;opacity:0;transform:translateY(6px);transition:opacity .4s,transform .4s var(--ease-out)}
.stone:hover{
  transform:translateY(calc(var(--i)*14px - 10px)) rotate(-1deg);
  border-color:var(--gold);box-shadow:0 24px 50px -18px rgba(0,0,0,.6);
  background:linear-gradient(160deg,#463f33,#322e25 60%,#28251e);
}
.stone:hover .stone-go{opacity:1;transform:none}

/* ============ FOOTER ============ */
.site-foot{position:relative;z-index:2;background:var(--ink);color:var(--paper);border-top:1px solid rgba(246,241,231,.12)}
.foot-gate{position:relative;height:110px;overflow:hidden;opacity:.5}
.foot-gate .gate-pillar{height:90%;bottom:-10%}
.foot-gate .gate-lintel{top:14%}
.foot-gate .gate-pillar.left{left:22%}.foot-gate .gate-pillar.right{right:22%}
.foot-gate .gate-lintel{left:14%;right:14%}
.foot-inner{
  display:grid;grid-template-columns:1.3fr 1fr 1fr 1fr;gap:clamp(28px,4vw,60px);
  max-width:1240px;margin:0 auto;padding:clamp(40px,5vw,70px) var(--gutter);
}
.foot-brand{display:grid;gap:16px;justify-items:start;align-content:start}
.foot-brand .foot-title{font-family:var(--sans);font-weight:700;letter-spacing:.28em;font-size:14px}
.foot-brand .foot-jp{position:absolute;right:var(--gutter);font-size:clamp(30px,4vw,46px);color:rgba(246,241,231,.16);font-weight:700}
.foot-note{font-size:12.8px;color:rgba(246,241,231,.6);max-width:38ch}
.foot-col{display:grid;gap:10px;align-content:start}
.foot-col h4{font-family:var(--sans);font-size:11px;letter-spacing:.3em;color:var(--gold);margin-bottom:8px}
.foot-col a{font-size:13.5px;color:rgba(246,241,231,.78);transition:color .3s,transform .3s var(--ease-out);width:fit-content}
.foot-col a:hover{color:var(--paper);transform:translateX(4px)}
.foot-credits{font-size:12px;color:rgba(246,241,231,.55);line-height:1.8}
.foot-credits code{font-family:ui-monospace,monospace;font-size:.92em;color:rgba(246,241,231,.75)}
.to-top{
  margin-top:14px;font-family:var(--serif);font-size:16px;color:var(--paper);
  border:1px solid rgba(246,241,231,.3);border-radius:999px;padding:12px 22px;
  display:inline-flex;gap:10px;align-items:center;transition:all .4s var(--ease-out);
}
.to-top span{font-family:var(--sans);font-size:10.5px;letter-spacing:.14em;color:rgba(246,241,231,.6)}
.to-top:hover{background:var(--paper);color:var(--ink)}
.to-top:hover span{color:var(--ink-soft)}
.foot-base{
  display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;
  max-width:1240px;margin:0 auto;padding:22px var(--gutter) 30px;
  border-top:1px solid rgba(246,241,231,.12);
  font-family:var(--sans);font-size:10.5px;letter-spacing:.16em;color:rgba(246,241,231,.45);
}
.foot-seigaiha{
  flex:1;min-width:120px;height:16px;opacity:.4;
  background-image:radial-gradient(circle at 50% 130%,transparent 60%,rgba(246,241,231,.5) 61%,transparent 63%);
  background-size:32px 16px;background-repeat:repeat-x;
}

/* ============ REVEAL ============ */
.reveal{opacity:0;transform:translateY(30px);transition:opacity 1s var(--ease-out),transform 1s var(--ease-out)}
.reveal.is-in{opacity:1;transform:none}

/* ============ RESPONSIVE ============ */
@media (max-width:1100px){
  .chapter-grid{grid-template-columns:1fr}
  .chapter-grid.three{grid-template-columns:1fr 1fr}
  .region-card{grid-template-columns:1fr}
  .region-card figure{min-height:240px}
  .story-index{grid-template-columns:1fr 1fr}
  .stone-path{grid-template-columns:1fr 1fr}
  .stone{transform:none;min-height:230px}
  .stone:hover{transform:translateY(-8px)}
  .foot-inner{grid-template-columns:1fr 1fr}
  .foot-brand .foot-jp{display:none}
}
@media (max-width:860px){
  .hero-veil{
    background:linear-gradient(to bottom,color-mix(in srgb,var(--paper) 82%,transparent) 0%,color-mix(in srgb,var(--paper) 74%,transparent) 42%,color-mix(in srgb,var(--paper) 90%,transparent) 78%,var(--paper) 100%);
  }
  .site-nav{display:none}
  .menu-btn{display:flex}
  .season-chip .season-name{display:none}
  .season-chip{padding:8px 10px}
  .hero-inner{padding:110px var(--gutter) 200px}
  .hero-seasons{left:var(--gutter);right:var(--gutter);bottom:30px;justify-content:space-between}
  .hero-seasons a{min-width:0;flex:1;padding:10px 6px}
  .hero-seasons i{display:none}
  .scroll-cue{display:none}
  .season-head{grid-template-columns:1fr}
  .season-num{grid-row:auto;writing-mode:horizontal-tb;letter-spacing:.3em}
  .season-dek{grid-column:1}
  .story-card{grid-template-columns:1fr}
  .story-card figure{height:200px}
  .news-lead{grid-template-columns:1fr}
  .news-item{grid-template-columns:1fr;gap:6px}
  .news-cat{justify-self:start}
  .stone-tabs{grid-template-columns:1fr}
}
@media (max-width:640px){
  .chapter-grid.three{grid-template-columns:1fr}
  .story-index{grid-template-columns:1fr}
  .stone-path{grid-template-columns:1fr}
  .hero-title{flex-direction:column-reverse;gap:14px}
  .hero-title-jp{writing-mode:horizontal-tb;font-size:clamp(40px,11vw,54px)}
  .hero-title-jp{font-size:clamp(40px,11vw,54px)}
  .season-title{flex-direction:row}
  .foot-inner{grid-template-columns:1fr}
  .brand-text small{display:none}
}

/* ============ REDUCED MOTION ============ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;animation-iteration-count:1 !important;transition-duration:.2s !important}
  .hero-media img{animation:none}
  .reveal{opacity:1;transform:none}
}