*,*::before,*::after{box-sizing:border-box;}

:root{
  --ink:#0B1B2B;
  --ink-2:#17324D;
  --paper:#F6F0E4;
  --paper-2:#EDE3D2;
  --gold:#C9A227;
  --gold-soft:#E3C766;
  --gold-deep:#8A6A12;
  --celadon:#6E9C8B;
  --coral:#E06B4F;
  --slate:#5A6672;
  --white:#FFFDF8;
  --line:rgba(11,27,43,.16);
  --line-soft:rgba(11,27,43,.09);
  --line-dark:rgba(246,240,228,.16);
  --line-dark-strong:rgba(246,240,228,.3);
  --maxw:1240px;
  --pad:clamp(18px,4vw,48px);
  --font-display:"Noto Sans SC","Archivo Expanded","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-body:"Noto Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,"SF Mono",Menlo,Consolas,"Liberation Mono",monospace;
  --ease:cubic-bezier(.2,.7,.3,1);
}

html{
  -webkit-text-size-adjust:100%;
  scroll-behavior:smooth;
  scroll-padding-top:112px;
}

body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:var(--font-body);
  font-size:1rem;
  font-weight:400;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
  text-rendering:optimizeLegibility;
}

img,svg,video,picture{display:block;max-width:100%;height:auto;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0;}
button{font:inherit;color:inherit;}
a{color:inherit;}

h1,h2,h3,h4{
  margin:0;
  font-family:var(--font-display);
  font-weight:700;
  line-height:1.15;
  letter-spacing:-.02em;
}

h1{font-size:clamp(2.6rem,6vw,5rem);letter-spacing:-.025em;font-weight:800;}
h2{font-size:clamp(1.8rem,3.4vw,3rem);}
h3{font-size:clamp(1.15rem,1.8vw,1.5rem);letter-spacing:-.01em;}

::selection{background:var(--gold);color:var(--ink);}

:focus-visible{
  outline:2px solid var(--gold-soft);
  outline-offset:3px;
}

.site-header :focus-visible,
.site-footer :focus-visible{
  outline-color:var(--white);
}

[id="main-content"]{scroll-margin-top:120px;}

/* ============ Skip link ============ */
.skip-link{
  position:absolute;
  left:var(--pad);
  top:-120px;
  z-index:999;
  display:inline-block;
  padding:11px 20px;
  background:var(--gold);
  color:var(--ink);
  font-size:.8rem;
  font-weight:600;
  letter-spacing:.08em;
  text-decoration:none;
  border:1px solid var(--gold);
  transition:top .22s var(--ease);
}
.skip-link:focus{top:10px;}

/* ============ Header ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:linear-gradient(180deg,#0B1B2B 0%,#0d2034 100%);
  color:var(--paper);
  border-bottom:1px solid rgba(201,162,39,.42);
}

.header-progress{
  position:absolute;
  left:0;
  bottom:-1px;
  height:2px;
  width:0;
  background:linear-gradient(90deg,var(--gold) 0%,var(--gold-soft) 100%);
  transition:width .12s linear;
}

.header-inner{
  display:flex;
  align-items:center;
  gap:clamp(16px,3vw,44px);
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:0 var(--pad);
  min-height:88px;
  transition:min-height .28s var(--ease),padding .28s var(--ease);
}

.site-header.is-compact .header-inner{min-height:66px;}
.site-header.is-compact{box-shadow:0 1px 0 rgba(201,162,39,.18);}

.brand{
  display:inline-flex;
  align-items:center;
  gap:13px;
  flex:0 0 auto;
  text-decoration:none;
  color:var(--paper);
}

.brand-mark{
  position:relative;
  display:block;
  width:28px;
  height:28px;
  border:1px solid var(--gold);
  flex:0 0 auto;
  transition:border-color .22s var(--ease),transform .3s var(--ease);
}
.brand-mark::before,
.brand-mark::after{
  content:"";
  position:absolute;
  background:var(--gold);
  transition:background .22s var(--ease);
}
.brand-mark::before{left:6px;right:6px;top:50%;height:1px;}
.brand-mark::after{top:6px;bottom:6px;left:50%;width:1px;}
.brand:hover .brand-mark{border-color:var(--gold-soft);transform:rotate(45deg);}
.brand:hover .brand-mark::before,
.brand:hover .brand-mark::after{background:var(--gold-soft);}

.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{
  font-family:var(--font-display);
  font-size:1.02rem;
  font-weight:700;
  letter-spacing:-.01em;
}
.brand-sub{
  font-family:var(--font-mono);
  font-size:.58rem;
  font-weight:500;
  letter-spacing:.2em;
  text-transform:uppercase;
  color:rgba(201,162,39,.92);
  margin-top:3px;
}

/* --- Desktop navigation --- */
.site-nav{margin-left:auto;}

.nav-list{
  display:flex;
  align-items:center;
  gap:clamp(8px,1.5vw,26px);
}

.nav-link{
  position:relative;
  display:inline-flex;
  align-items:baseline;
  gap:6px;
  padding:9px 0 11px;
  color:rgba(246,240,228,.66);
  text-decoration:none;
  font-size:.8rem;
  font-weight:500;
  letter-spacing:.05em;
  white-space:nowrap;
  transition:color .22s var(--ease);
}

.nav-link::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:1px;
  background:var(--gold);
  transform:scaleX(0);
  transform-origin:right center;
  transition:transform .28s var(--ease),background .22s var(--ease);
}

.nav-link:hover,
.nav-link:focus-visible{color:var(--paper);}
.nav-link:hover::after,
.nav-link:focus-visible::after{transform:scaleX(1);transform-origin:left center;}

.nav-link[aria-current="page"]{color:var(--gold-soft);}
.nav-link[aria-current="page"]::after{transform:scaleX(1);background:var(--gold-soft);}
.nav-link[aria-current="page"] .nav-idx{color:var(--gold-soft);}

.nav-idx{
  font-family:var(--font-mono);
  font-size:.6rem;
  font-weight:500;
  letter-spacing:.08em;
  color:rgba(201,162,39,.82);
  transition:color .22s var(--ease);
}

/* --- Tools --- */
.header-tools{
  display:flex;
  align-items:center;
  gap:14px;
  flex:0 0 auto;
}

.utility-link{
  display:inline-block;
  padding:5px 0;
  font-size:.73rem;
  letter-spacing:.12em;
  color:rgba(246,240,228,.62);
  text-decoration:none;
  border-bottom:1px solid rgba(201,162,39,.42);
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.utility-link:hover,
.utility-link:focus-visible{color:var(--gold-soft);border-bottom-color:var(--gold-soft);}

.nav-toggle{
  display:none;
  align-items:center;
  gap:10px;
  padding:7px 12px;
  background:transparent;
  color:var(--paper);
  border:1px solid rgba(201,162,39,.52);
  font-size:.72rem;
  letter-spacing:.14em;
  cursor:pointer;
  transition:background .22s var(--ease),border-color .22s var(--ease);
}
.nav-toggle:hover{background:rgba(201,162,39,.14);border-color:var(--gold-soft);}

.nav-toggle-text{line-height:1;}

.nav-toggle-bars{
  display:inline-flex;
  flex-direction:column;
  gap:4px;
  width:16px;
}
.nav-toggle-bars i{
  display:block;
  height:1px;
  width:100%;
  background:var(--gold-soft);
  transition:transform .26s var(--ease),opacity .26s var(--ease);
}
.site-header[data-open="true"] .nav-toggle-bars i:first-child{transform:translateY(2.5px) rotate(45deg);}
.site-header[data-open="true"] .nav-toggle-bars i:last-child{transform:translateY(-2.5px) rotate(-45deg);}

/* ============ Footer ============ */
.site-footer{
  background:var(--ink);
  color:rgba(246,240,228,.74);
  border-top:1px solid rgba(201,162,39,.45);
}

.footer-inner{
  width:100%;
  max-width:var(--maxw);
  margin:0 auto;
  padding:clamp(48px,7vw,90px) var(--pad) clamp(22px,3vw,30px);
}

.footer-grid{
  display:grid;
  grid-template-columns:1.55fr 1fr 1fr 1.35fr;
  gap:clamp(24px,3.5vw,56px);
  padding-bottom:clamp(34px,5vw,58px);
  border-bottom:1px solid var(--line-dark);
}

.footer-col{min-width:0;}
.footer-col--brand{padding-right:clamp(0px,2vw,28px);}
.footer-col:nth-child(2){padding-top:30px;}
.footer-col:nth-child(3){padding-top:14px;}
.footer-col--contact{padding-top:4px;}

.brand--footer{gap:14px;}
.brand--footer .brand-mark{width:32px;height:32px;}
.brand--footer .brand-name{font-size:1.06rem;}
.brand--footer .brand-sub{font-size:.6rem;}

.footer-note{
  margin-top:18px;
  font-size:.85rem;
  line-height:1.8;
  color:rgba(246,240,228,.56);
  max-width:30ch;
}

.footer-title{
  display:flex;
  flex-direction:column;
  gap:7px;
  margin:0 0 18px;
  font-family:var(--font-display);
  font-size:.92rem;
  font-weight:600;
  letter-spacing:.02em;
  color:var(--paper);
}

.footer-title-en{
  font-family:var(--font-mono);
  font-size:.58rem;
  font-weight:500;
  letter-spacing:.24em;
  text-transform:uppercase;
  color:var(--gold);
}

.footer-list{display:grid;gap:9px;}

.footer-list a{
  display:inline-block;
  font-size:.86rem;
  color:rgba(246,240,228,.68);
  text-decoration:none;
  transition:color .22s var(--ease),transform .22s var(--ease);
}
.footer-list a:hover,
.footer-list a:focus-visible{
  color:var(--gold-soft);
  transform:translateX(4px);
}

.footer-contact{display:grid;gap:10px;font-size:.86rem;color:rgba(246,240,228,.7);}
.footer-contact li{word-break:break-word;line-height:1.6;}
.footer-hours{
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.06em;
  color:rgba(110,156,139,.95);
  border-left:2px solid var(--celadon);
  padding-left:10px;
  margin-top:4px;
}

.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  justify-content:space-between;
  gap:10px 28px;
  padding-top:clamp(20px,3vw,26px);
  font-size:.74rem;
  letter-spacing:.03em;
  color:rgba(246,240,228,.48);
}
.footer-copy{margin:0;font-family:var(--font-mono);letter-spacing:.04em;}
.footer-legal{
  display:flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:8px;
  margin:0;
}
.footer-legal a{
  color:rgba(246,240,228,.62);
  text-decoration:none;
  border-bottom:1px solid transparent;
  transition:color .22s var(--ease),border-color .22s var(--ease);
}
.footer-legal a:hover,
.footer-legal a:focus-visible{color:var(--gold-soft);border-bottom-color:var(--gold-soft);}

/* ============ Layout primitives ============ */
.container{
  width:100%;
  max-width:var(--maxw);
  margin-left:auto;
  margin-right:auto;
  padding-left:var(--pad);
  padding-right:var(--pad);
}
.container--narrow{max-width:880px;}

.section{
  position:relative;
  padding-top:clamp(56px,8vw,110px);
  padding-bottom:clamp(56px,8vw,110px);
}
.section--paper{background:var(--paper-2);}
.section--dark{background:var(--ink);color:var(--paper);}
.section--dark h1,.section--dark h2,.section--dark h3{color:var(--paper);}

.on-dark .eyebrow{color:var(--gold-soft);}
.on-dark .lede{color:rgba(246,240,228,.76);}

.lede{
  max-width:68ch;
  font-size:clamp(1.02rem,1.4vw,1.16rem);
  line-height:1.85;
  color:var(--slate);
  margin-top:18px;
}

.rule{
  display:block;
  width:100%;
  height:1px;
  border:0;
  margin:0;
  background:var(--line);
}
.on-dark .rule,
.section--dark .rule{background:var(--line-dark);}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:11px;
  font-family:var(--font-mono);
  font-size:.66rem;
  font-weight:500;
  letter-spacing:.22em;
  text-transform:uppercase;
  color:var(--gold-deep);
}
.eyebrow::before{
  content:"";
  display:block;
  width:26px;
  height:1px;
  background:currentColor;
  flex:0 0 auto;
}

.section-num{
  display:block;
  font-family:var(--font-mono);
  font-size:clamp(2.4rem,6vw,4.4rem);
  font-weight:500;
  line-height:.95;
  letter-spacing:-.04em;
  color:var(--gold);
}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;
  align-items:center;
  gap:.65em;
  padding:14px 26px;
  font-family:var(--font-body);
  font-size:.85rem;
  font-weight:500;
  letter-spacing:.06em;
  line-height:1.2;
  text-decoration:none;
  border:1px solid transparent;
  background:transparent;
  cursor:pointer;
  transition:background .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease);
}
.btn--gold{background:var(--gold);color:var(--ink);border-color:var(--gold);}
.btn--gold:hover,.btn--gold:focus-visible{background:var(--gold-soft);border-color:var(--gold-soft);}
.btn--outline{background:transparent;color:var(--ink);border-color:rgba(11,27,43,.32);}
.btn--outline:hover,.btn--outline:focus-visible{border-color:var(--gold);color:var(--gold-deep);}
.btn--on-dark{background:transparent;color:var(--paper);border-color:rgba(246,240,228,.38);}
.btn--on-dark:hover,.btn--on-dark:focus-visible{border-color:var(--gold-soft);color:var(--gold-soft);}

/* ============ Breadcrumb ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:.68rem;
  letter-spacing:.1em;
  color:var(--slate);
}
.breadcrumb a{color:var(--slate);text-decoration:none;transition:color .22s var(--ease);}
.breadcrumb a:hover,.breadcrumb a:focus-visible{color:var(--gold-deep);}
.breadcrumb-sep{color:rgba(11,27,43,.28);}

/* ============ Tags ============ */
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 9px;
  font-family:var(--font-mono);
  font-size:.64rem;
  font-weight:500;
  letter-spacing:.1em;
  line-height:1.5;
  border:1px solid var(--line);
  color:var(--slate);
  background:transparent;
}
.tag--gold{border-color:rgba(201,162,39,.55);color:var(--gold-deep);}
.tag--celadon{border-color:rgba(110,156,139,.6);color:#42685a;}
.tag--coral{border-color:rgba(224,107,79,.6);color:#B44A32;}

/* ============ Media frames (page-level images) ============ */
.media-frame{
  position:relative;
  display:block;
  overflow:hidden;
  width:100%;
  aspect-ratio:16 / 10;
  background:var(--ink-2);
  border:1px solid rgba(11,27,43,.18);
}
.media-frame > img,
.media-frame > picture > img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.media-frame--tall{aspect-ratio:3 / 4;}
.media-frame--wide{aspect-ratio:21 / 9;}
.media-frame--square{aspect-ratio:1 / 1;}

.media-frame__caption{
  position:absolute;
  left:0;
  bottom:0;
  padding:9px 14px;
  background:rgba(11,27,43,.84);
  color:var(--paper);
  font-family:var(--font-mono);
  font-size:.62rem;
  letter-spacing:.16em;
  text-transform:uppercase;
}

/* ============ Texture ============ */
.grid-veil{position:relative;isolation:isolate;}
.grid-veil::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(246,240,228,.055) 1px,transparent 1px),
    linear-gradient(90deg,rgba(246,240,228,.055) 1px,transparent 1px);
  background-size:64px 64px;
}
.grid-veil > *{position:relative;z-index:1;}

.visually-hidden{
  position:absolute;
  width:1px;height:1px;
  margin:-1px;padding:0;
  overflow:hidden;
  clip:rect(0 0 0 0);
  clip-path:inset(50%);
  white-space:nowrap;
  border:0;
}

/* ============ Tablet ============ */
@media (max-width:1023px){
  html{scroll-padding-top:84px;}

  .header-inner{
    flex-wrap:wrap;
    row-gap:0;
    min-height:0;
    padding-top:13px;
    padding-bottom:13px;
    transition:padding .28s var(--ease);
  }
  .site-header.is-compact .header-inner{min-height:0;padding-top:10px;padding-bottom:10px;}

  .nav-toggle{display:inline-flex;}

  .site-nav{
    order:3;
    flex:0 0 100%;
    width:100%;
    margin-left:0;
    max-height:0;
    overflow:hidden;
    visibility:hidden;
    transition:max-height .34s var(--ease),visibility .34s;
  }
  .site-header[data-open="true"] .site-nav{
    max-height:min(72vh,540px);
    overflow-y:auto;
    visibility:visible;
    padding-top:6px;
  }

  .nav-list{flex-direction:column;align-items:stretch;gap:0;}

  .nav-link{
    width:100%;
    justify-content:flex-start;
    gap:14px;
    padding:15px 2px;
    font-size:.94rem;
    border-bottom:1px solid rgba(246,240,228,.1);
    color:rgba(246,240,228,.76);
  }
  .nav-link::after{display:none;}
  .nav-link[aria-current="page"]{
    color:var(--gold-soft);
    border-bottom-color:rgba(201,162,39,.55);
    background:rgba(201,162,39,.07);
  }
  .nav-idx{font-size:.66rem;min-width:22px;}

  .footer-grid{grid-template-columns:1fr 1fr;}
  .footer-col:nth-child(2),
  .footer-col:nth-child(3),
  .footer-col--contact{padding-top:0;}
  .footer-col--brand{grid-column:1 / -1;padding-right:0;padding-bottom:6px;}
  .footer-note{max-width:46ch;}

  .section{padding-top:clamp(44px,7vw,80px);padding-bottom:clamp(44px,7vw,80px);}
}

/* ============ Mobile ============ */
@media (max-width:639px){
  .header-inner{gap:12px;}
  .brand-name{font-size:.94rem;}
  .brand-sub{font-size:.54rem;letter-spacing:.16em;}
  .brand-mark{width:24px;height:24px;}
  .header-tools{gap:10px;}
  .utility-link{font-size:.68rem;letter-spacing:.08em;}
  .nav-toggle{padding:6px 10px;font-size:.68rem;}

  .footer-inner{padding-top:clamp(40px,10vw,56px);}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-col--brand{grid-column:auto;border-bottom:1px solid var(--line-dark);padding-bottom:24px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}

  .btn{padding:12px 20px;font-size:.8rem;width:100%;justify-content:center;}
  .media-frame--wide{aspect-ratio:16 / 10;}
}

/* ============ Motion preferences ============ */
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .brand:hover .brand-mark{transform:none;}
  .footer-list a:hover,
  .footer-list a:focus-visible{transform:none;}
  .header-progress{transition:none;}
}