:root{
  --sand-gold:#C9A227;
  --gold-light:#E3C766;
  --gold-deep:#8C6D18;
  --ink-green:#123B2F;
  --ink-green-deep:#0B241C;
  --paper:#F3EBDD;
  --paper-2:#D9CDB8;
  --cinnabar:#B43A2F;
  --sage:#6B7F75;
  --ink:#1F1B16;
  --font-body:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
  --font-display:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-serif:"Songti SC","STSong","SimSun","Noto Serif SC","Source Han Serif SC",serif;
  --font-mono:"SFMono-Regular",ui-monospace,"JetBrains Mono",Consolas,"Courier New",monospace;
  --wrap:1180px;
  --r-xl:32px;
  --r-lg:22px;
  --r-md:14px;
  --r-pill:999px;
  --hair:1px solid rgba(140,109,24,.26);
  --hair-gold:1px solid rgba(201,162,39,.38);
  --shadow-soft:0 24px 60px -38px rgba(11,36,28,.55);
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body,h1,h2,h3,h4,p,ul,ol,figure,blockquote,dl,dd{margin:0}
ul,ol{padding:0;list-style:none}
img,svg,video{display:block;max-width:100%;height:auto}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
a{color:inherit;text-decoration:none}
:focus-visible{outline:3px solid var(--gold-light);outline-offset:3px;border-radius:8px}
::selection{background:rgba(201,162,39,.35);color:var(--ink-green-deep)}

body{
  font-family:var(--font-body);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background-color:var(--paper);
  background-image:radial-gradient(90% 60% at 50% -14%,rgba(201,162,39,.12),transparent 70%);
  -webkit-font-smoothing:antialiased;
}
body.is-locked{overflow:hidden}
h1,h2,h3,h4{font-family:var(--font-display);font-weight:800;line-height:1.22;color:var(--ink-green);letter-spacing:-.01em;text-wrap:balance}
p{letter-spacing:.01em}
#main-content{display:block;scroll-margin-top:110px}
.visually-hidden{position:absolute;width:1px;height:1px;margin:-1px;padding:0;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* ---------- skip link ---------- */
.skip-link{
  position:fixed;left:16px;top:-80px;z-index:400;
  padding:12px 22px;border-radius:var(--r-pill);
  background:linear-gradient(135deg,var(--gold-light),var(--sand-gold));
  color:#22190a;font-weight:800;font-size:14px;letter-spacing:.04em;
  box-shadow:0 16px 32px -18px rgba(11,36,28,.9);
  transition:top .25s ease;
}
.skip-link:focus{top:14px}

/* ---------- site header ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:linear-gradient(180deg,rgba(18,59,47,.99),rgba(11,36,28,.96));
  border-bottom:1px solid rgba(201,162,39,.3);
  color:var(--paper);
  padding-top:0;
  transition:background .35s ease,padding .35s ease,border-color .35s ease;
}
.site-header::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(60% 150% at 6% 0%,rgba(201,162,39,.18),transparent 62%);
  transition:opacity .35s ease;
}
.site-header__rail{
  max-height:40px;overflow:hidden;
  border-bottom:1px dashed rgba(201,162,39,.26);
  transition:max-height .35s ease,opacity .3s ease,border-color .3s ease;
}
.site-header__rail-inner{
  max-width:var(--wrap);margin:0 auto;
  padding:7px clamp(18px,4vw,32px);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  font-size:12px;letter-spacing:.16em;color:rgba(243,235,221,.66);
}
.rail-tagline{font-family:var(--font-serif);letter-spacing:.32em;color:rgba(227,199,102,.9)}
.rail-meta{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.rail-chip{
  padding:2px 12px;border-radius:var(--r-pill);
  border:1px solid rgba(201,162,39,.45);
  color:var(--gold-light);font-family:var(--font-mono);font-size:11px;letter-spacing:.22em;
}
.rail-note{font-family:var(--font-mono);font-size:11px;letter-spacing:.14em;color:rgba(243,235,221,.55)}

.site-header__bar{
  position:relative;
  max-width:var(--wrap);margin:0 auto;
  padding:16px clamp(18px,4vw,32px);
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  transition:padding .35s ease,background .35s ease,border-radius .35s ease,border-color .35s ease,box-shadow .35s ease,max-width .35s ease;
}

/* brand */
.brand{display:inline-flex;align-items:center;gap:12px;text-decoration:none;color:inherit}
.brand__seal{
  width:44px;height:44px;flex:0 0 auto;
  display:grid;place-items:center;
  border-radius:14px;
  font-family:var(--font-serif);font-size:22px;font-weight:700;line-height:1;
  color:#231904;
  background:linear-gradient(140deg,var(--gold-light),var(--sand-gold) 52%,var(--gold-deep));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.55),0 10px 22px -14px rgba(201,162,39,.95);
  border:1px solid rgba(255,255,255,.28);
}
.brand__text{display:flex;flex-direction:column;line-height:1.2}
.brand__name{font-family:var(--font-display);font-weight:900;font-size:19px;letter-spacing:.06em;color:var(--paper)}
.brand__sub{
  font-family:var(--font-mono);font-size:10.5px;letter-spacing:.34em;
  color:var(--gold-light);margin-top:3px;text-transform:uppercase;
}

/* nav toggle */
.nav-toggle{
  display:none;align-items:center;gap:10px;
  padding:10px 18px;border-radius:var(--r-pill);
  border:1px solid rgba(201,162,39,.5);
  color:var(--paper);font-size:13px;letter-spacing:.16em;
  background:rgba(201,162,39,.08);
  transition:background .25s ease,border-color .25s ease,color .25s ease;
}
.nav-toggle:hover{background:rgba(201,162,39,.2);border-color:var(--gold-light);color:var(--gold-light)}
.nav-toggle__bars{display:inline-flex;flex-direction:column;gap:4px;width:16px}
.nav-toggle__bars span{display:block;height:2px;border-radius:2px;background:currentColor;transition:transform .3s ease,opacity .3s ease}
.site-header[data-open] .nav-toggle__bars span:first-child{transform:translateY(3px) rotate(45deg)}
.site-header[data-open] .nav-toggle__bars span:last-child{transform:translateY(-3px) rotate(-45deg)}
.nav-toggle__text{white-space:nowrap}

/* nav */
.site-nav{display:flex;align-items:center;gap:18px}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-link{
  display:inline-block;
  padding:8px 14px;border-radius:var(--r-pill);
  font-size:14.5px;letter-spacing:.04em;white-space:nowrap;
  color:rgba(243,235,221,.82);
  border:1px solid transparent;
  transition:color .22s ease,background .22s ease,border-color .22s ease,transform .22s ease;
}
.nav-link:hover{color:var(--gold-light);background:rgba(201,162,39,.12);border-color:rgba(201,162,39,.36)}
.nav-link[aria-current="page"]{
  color:#22190a;font-weight:800;
  background:linear-gradient(135deg,var(--gold-light),var(--sand-gold));
  border-color:rgba(255,255,255,.35);
  box-shadow:0 10px 22px -16px rgba(201,162,39,.95);
}
.nav-cta{
  display:inline-flex;align-items:center;justify-content:center;
  padding:10px 20px;border-radius:var(--r-pill);
  font-size:13.5px;font-weight:700;letter-spacing:.1em;white-space:nowrap;
  color:var(--gold-light);
  border:1px dashed rgba(201,162,39,.6);
  background:rgba(18,59,47,.5);
  transition:background .25s ease,color .25s ease,border-color .25s ease;
}
.nav-cta:hover{background:linear-gradient(135deg,var(--gold-light),var(--sand-gold));color:#22190a;border-style:solid;border-color:transparent}

/* stuck capsule */
.site-header[data-stuck]{background:transparent;border-bottom-color:transparent;padding-top:10px}
.site-header[data-stuck]::before{opacity:0}
.site-header[data-stuck] .site-header__rail{max-height:0;opacity:0;border-color:transparent}
.site-header[data-stuck] .site-header__bar{
  max-width:calc(var(--wrap) - 28px);
  padding:8px 12px 8px 18px;
  border-radius:var(--r-pill);
  border:1px solid rgba(201,162,39,.5);
  background:rgba(11,36,28,.95);
  box-shadow:0 22px 44px -30px rgba(0,0,0,.95);
}
.site-header[data-stuck] .brand__seal{width:36px;height:36px;border-radius:11px;font-size:18px}
.site-header[data-open]{background:linear-gradient(180deg,rgba(18,59,47,.99),rgba(11,36,28,.97))}

/* ---------- site footer ---------- */
.site-footer{
  position:relative;overflow:hidden;
  margin-top:clamp(56px,8vw,104px);
  padding:clamp(42px,6vw,80px) 0 26px;
  color:var(--paper);
  background:radial-gradient(120% 90% at 14% -12%,#1B5040 0%,#123B2F 44%,#0B241C 100%);
  border-top:1px solid rgba(201,162,39,.42);
  border-radius:clamp(26px,5vw,54px) clamp(26px,5vw,54px) 0 0;
}
.site-footer::before{
  content:"";position:absolute;left:34%;right:-14%;bottom:-42%;height:70%;
  background:radial-gradient(closest-side,rgba(201,162,39,.24),transparent 72%);
  pointer-events:none;
}
.site-footer::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:repeating-linear-gradient(90deg,rgba(201,162,39,.07) 0 1px,transparent 1px 120px);
}
.footer-shell{position:relative;z-index:1;max-width:var(--wrap);margin:0 auto;padding:0 clamp(18px,4vw,32px)}
.footer-lede{
  display:grid;grid-template-columns:minmax(0,1fr) auto;align-items:end;gap:24px;
  padding-bottom:clamp(24px,3.4vw,40px);
  border-bottom:1px dashed rgba(201,162,39,.32);
}
.footer-kicker{font-family:var(--font-mono);font-size:11.5px;letter-spacing:.34em;text-transform:uppercase;color:var(--gold-light);opacity:.85}
.footer-display{
  margin-top:14px;
  font-family:var(--font-display);font-weight:900;
  font-size:clamp(24px,4.2vw,44px);line-height:1.22;
  color:var(--paper);
  text-shadow:0 0 26px rgba(201,162,39,.32);
}
.footer-cta{justify-self:end}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1.35fr;
  gap:clamp(22px,4vw,52px);
  padding:clamp(26px,4vw,44px) 0;
}
.footer-brand__name{font-family:var(--font-display);font-weight:800;font-size:16.5px;letter-spacing:.03em;color:var(--paper)}
.footer-brand__desc{margin-top:12px;font-size:14px;line-height:1.85;color:rgba(243,235,221,.68);max-width:36ch}
.footer-col__title{
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.3em;text-transform:uppercase;
  color:var(--gold-light);margin-bottom:14px;
}
.footer-list{display:grid;gap:9px;font-size:14.5px}
.footer-list a{color:rgba(243,235,221,.8);transition:color .2s ease}
.footer-list a:hover{color:var(--gold-light);text-decoration:underline;text-underline-offset:5px;text-decoration-color:rgba(227,199,102,.6)}
.footer-list--plain li{display:flex;flex-wrap:wrap;gap:10px;font-family:var(--font-mono);font-size:12.5px;line-height:1.7;color:rgba(243,235,221,.82);word-break:break-word}
.footer-k{flex:0 0 34px;color:var(--sand-gold);font-size:11px;letter-spacing:.16em;padding-top:3px}
.footer-note{
  margin-top:16px;padding-left:12px;
  border-left:2px solid rgba(201,162,39,.45);
  font-size:12.5px;line-height:1.75;color:rgba(243,235,221,.62);
}
.footer-base{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px 24px;
  padding-top:20px;border-top:1px solid rgba(201,162,39,.24);
  font-size:12.5px;letter-spacing:.04em;color:rgba(243,235,221,.62);
}
.footer-copy{font-family:var(--font-mono)}
.footer-icp{color:var(--paper-2)}
.footer-legal{display:flex;flex-wrap:wrap;gap:8px 18px}
.footer-legal a{color:rgba(243,235,221,.76);transition:color .2s ease}
.footer-legal a:hover{color:var(--gold-light);text-decoration:underline;text-underline-offset:5px}

/* ---------- shared components ---------- */
.wrap{width:100%;max-width:var(--wrap);margin:0 auto;padding:0 clamp(18px,4vw,32px)}
.section{padding:clamp(48px,7vw,92px) 0}
.section--tight{padding:clamp(30px,4vw,54px) 0}
.section--paper2{background:linear-gradient(180deg,var(--paper-2),rgba(217,205,184,.55))}
.section--ink{
  background:linear-gradient(180deg,#123B2F,#0B241C);
  color:var(--paper);
  border-radius:var(--r-xl);
  margin:0 auto;
  max-width:calc(var(--wrap) + 40px);
}
.section--ink .section-title,.section--ink h2,.section--ink h3{color:var(--paper)}
.section--ink .lede,.section--ink .card__text{color:rgba(243,235,221,.82)}
.section--ink .eyebrow{color:var(--gold-light)}
.section__head{margin-bottom:clamp(24px,3.4vw,40px);display:flex;flex-direction:column;gap:14px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-serif);font-size:12.5px;letter-spacing:.3em;text-transform:uppercase;
  color:var(--gold-deep);
}
.eyebrow::before{content:"";width:30px;height:1px;background:currentColor;opacity:.85}
.section-title{font-size:clamp(25px,3.8vw,44px);font-weight:900;letter-spacing:-.015em;color:var(--ink-green)}
.lede{font-size:clamp(15px,1.6vw,17px);line-height:1.85;color:#4A4438;max-width:62ch}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:800;letter-spacing:.05em;
  border:1px solid transparent;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,color .25s ease,border-color .25s ease;
}
.btn--gold{
  color:#22190a;
  background:linear-gradient(135deg,var(--gold-light),var(--sand-gold) 55%,var(--gold-deep));
  box-shadow:0 18px 34px -22px rgba(201,162,39,.95),inset 0 1px 0 rgba(255,255,255,.5);
}
.btn--gold:hover{transform:translateY(-2px);box-shadow:0 22px 40px -20px rgba(201,162,39,.8),inset 0 1px 0 rgba(255,255,255,.6)}
.btn--ghost{color:var(--sand-gold);border-color:rgba(201,162,39,.55);background:rgba(201,162,39,.07)}
.btn--ghost:hover{background:rgba(201,162,39,.18);color:var(--gold-light);border-color:var(--gold-light)}
.btn--sm{padding:9px 18px;font-size:13.5px}

.pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:var(--r-pill);
  font-size:13.5px;letter-spacing:.06em;
  color:#3A3126;
  background:rgba(243,235,221,.72);
  border:1px solid rgba(140,109,24,.4);
  transition:background .22s ease,color .22s ease,border-color .22s ease,transform .22s ease;
}
.pill:hover{border-color:var(--sand-gold);color:var(--ink-green);transform:translateY(-1px)}
.pill[aria-pressed="true"],.pill.is-active{
  color:#FFF6E8;background:var(--cinnabar);border-color:var(--cinnabar);
  box-shadow:0 14px 26px -20px rgba(180,58,47,.95);
}

.tag{
  display:inline-flex;align-items:center;
  padding:4px 10px;border-radius:var(--r-pill);
  font-family:var(--font-mono);font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--gold-deep);
  background:rgba(201,162,39,.14);
  border:1px solid rgba(201,162,39,.35);
}
.tag--red{color:var(--cinnabar);background:rgba(180,58,47,.1);border-color:rgba(180,58,47,.32)}

.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.06em;color:var(--sage);
}
.crumb a{color:var(--gold-deep);border-bottom:1px solid transparent;transition:border-color .2s ease,color .2s ease}
.crumb a:hover{color:var(--ink-green);border-bottom-color:var(--sand-gold)}
.crumb__sep{color:rgba(107,127,117,.7)}

.grid{display:grid;gap:clamp(16px,2.4vw,28px)}
.grid--2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid--3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid--split{grid-template-columns:minmax(0,1fr) minmax(0,2.3fr)}
.stack{display:flex;flex-direction:column;gap:clamp(14px,2vw,22px)}

.card{
  position:relative;
  padding:clamp(18px,2.4vw,26px);
  border-radius:var(--r-lg);
  border:var(--hair);
  background:linear-gradient(180deg,#FBF6EC,#F3EBDD);
  box-shadow:0 18px 40px -34px rgba(11,36,28,.65);
  transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.card:hover{transform:translateY(-3px);border-color:rgba(201,162,39,.62);box-shadow:0 26px 52px -34px rgba(11,36,28,.6)}
.card--ink{
  color:var(--paper);
  background:linear-gradient(165deg,#17483A,#0B241C);
  border-color:rgba(201,162,39,.42);
}
.card__title{font-size:clamp(17px,2vw,22px);font-weight:800;color:var(--ink-green);margin-bottom:8px}
.card--ink .card__title{color:var(--gold-light)}
.card__text{font-size:15px;line-height:1.8;color:#514A3C}
.card--ink .card__text{color:rgba(243,235,221,.82)}
.card__meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:14px;
  font-family:var(--font-mono);font-size:12.5px;letter-spacing:.08em;color:var(--sage);
}
.card--ink .card__meta{color:rgba(227,199,102,.8)}

.media{
  position:relative;display:block;overflow:hidden;isolation:isolate;
  width:100%;
  border-radius:var(--r-xl);
  border:var(--hair-gold);
  background:linear-gradient(160deg,#1D4D3D,#0B241C);
  box-shadow:var(--shadow-soft);
}
.media > img,.media > picture > img{width:100%;height:100%;object-fit:cover}
.media::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.22;
  background-image:repeating-linear-gradient(0deg,rgba(11,36,28,.55) 0 1px,transparent 1px 4px);
}
.media--16-9{aspect-ratio:16/9}
.media--4-3{aspect-ratio:4/3}
.media--3-2{aspect-ratio:3/2}
.media--1-1{aspect-ratio:1/1}
.media--tall{aspect-ratio:4/5}
.media__caption{margin-top:10px;font-size:13px;letter-spacing:.04em;color:var(--sage)}

.note{
  padding:14px 18px;
  border-left:3px solid var(--sand-gold);
  border-radius:0 var(--r-md) var(--r-md) 0;
  background:rgba(217,205,184,.45);
  font-size:14px;line-height:1.8;color:#4A4438;
}

/* ---------- scroll progress + reveal ---------- */
.scroll-progress{
  position:fixed;top:0;left:0;right:0;height:3px;z-index:200;
  pointer-events:none;background:rgba(18,59,47,.14);
}
.scroll-progress__bar{
  display:block;height:100%;width:100%;
  transform:scaleX(0);transform-origin:0 50%;
  background:linear-gradient(90deg,var(--gold-deep),var(--sand-gold) 55%,var(--gold-light));
}
[data-reveal]{opacity:0;transform:translateY(18px);transition:opacity .6s ease,transform .6s cubic-bezier(.2,.7,.3,1)}
[data-reveal].is-visible{opacity:1;transform:none}
[data-filter-item][hidden]{display:none}

/* ---------- responsive ---------- */
@media (max-width:1080px){
  .nav-link{padding:8px 10px;font-size:13.5px}
  .site-nav{gap:12px}
  .rail-note{display:none}
}
@media (max-width:960px){
  .site-header__rail{max-height:44px}
  .site-header__rail-inner{font-size:11px;letter-spacing:.12em;gap:10px}
  .rail-tagline{letter-spacing:.2em}
  .nav-toggle{display:inline-flex}
  .site-header__bar{padding:14px clamp(16px,4vw,24px)}
  .site-nav{
    display:none;
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    flex-direction:column;align-items:stretch;gap:12px;
    padding:16px;
    border-radius:var(--r-lg);
    border:1px solid rgba(201,162,39,.45);
    background:rgba(11,36,28,.97);
    box-shadow:0 30px 60px -34px rgba(0,0,0,.95);
    max-height:min(74vh,540px);overflow:auto;
  }
  .site-nav[data-open]{display:flex}
  .nav-list{flex-direction:column;align-items:stretch;gap:4px}
  .nav-link{display:block;padding:12px 16px;font-size:15px;border-radius:var(--r-md);border-color:transparent}
  .nav-link[aria-current="page"]{border-radius:var(--r-md)}
  .nav-cta{width:100%;padding:13px 20px;border-style:solid}
  .site-header[data-stuck] .site-header__bar{max-width:calc(100% - 20px)}
  .footer-lede{grid-template-columns:1fr;align-items:start}
  .footer-cta{justify-self:start}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:900px){
  .grid--2,.grid--3,.grid--split{grid-template-columns:1fr}
}
@media (max-width:620px){
  body{font-size:15.5px;line-height:1.8}
  .brand__seal{width:38px;height:38px;border-radius:12px;font-size:19px}
  .brand__name{font-size:17px}
  .brand__sub{font-size:9.5px;letter-spacing:.28em}
  .nav-toggle{padding:9px 14px;font-size:12px}
  .footer-grid{grid-template-columns:1fr}
  .footer-base{flex-direction:column;align-items:flex-start}
  .footer-legal{gap:8px 14px}
  .site-footer{border-radius:24px 24px 0 0}
  .section--ink{border-radius:22px}
  .media{border-radius:var(--r-lg)}
  .footer-list--plain li{font-size:12px}
}

/* ---------- motion preference ---------- */
@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;
  }
  [data-reveal]{opacity:1;transform:none}
  .card:hover,.pill:hover,.btn--gold:hover{transform:none}
  .scroll-progress__bar{transition:none}
}