:root{
  --bg:#07080d;
  --bg-2:#0c1018;
  --ink:#11151e;
  --paper:#f4efe2;
  --paper-2:#fff9ea;
  --muted:#798091;
  --line:rgba(255,255,255,.13);
  --dark-line:rgba(14,16,24,.14);
  --gold:#d49b35;
  --gold-2:#ffe2a3;
  --ruby:#ff5a5f;
  --cyan:#5ae7ff;
  --emerald:#44d7a8;
  --shadow:0 32px 90px rgba(0,0,0,.33);
  --radius-xl:34px;
  --radius-lg:24px;
  --radius-md:18px;
  --container:min(1180px,calc(100% - 38px));
  --font-body:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"Segoe UI",Arial,sans-serif;
  --font-display:Georgia,"Times New Roman",serif;
  color-scheme:dark;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth;overflow-x:hidden}
body{
  margin:0;
  font-family:var(--font-body);
  color:#f8f2e3;
  background:
    radial-gradient(circle at 10% 0%,rgba(212,155,53,.28),transparent 34rem),
    radial-gradient(circle at 90% 10%,rgba(255,90,95,.18),transparent 33rem),
    linear-gradient(180deg,#06070b 0%,#0a0d14 44%,#10131b 100%);
  overflow-x:hidden;
}
body:before{
  content:"";
  position:fixed;
  inset:0;
  z-index:-2;
  background-image:
    linear-gradient(45deg,rgba(255,255,255,.025) 25%,transparent 25%),
    linear-gradient(-45deg,rgba(255,255,255,.025) 25%,transparent 25%),
    linear-gradient(45deg,transparent 75%,rgba(255,255,255,.025) 75%),
    linear-gradient(-45deg,transparent 75%,rgba(255,255,255,.025) 75%);
  background-size:56px 56px;
  background-position:0 0,0 28px,28px -28px,-28px 0;
  mask-image:linear-gradient(180deg,#000 0%,transparent 78%);
}
body:after{
  content:"";
  position:fixed;
  inset:0;
  z-index:-1;
  pointer-events:none;
  background:linear-gradient(90deg,rgba(255,255,255,.04) 1px,transparent 1px),linear-gradient(180deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:96px 96px;
  opacity:.24;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;height:auto;display:block}
button,input,textarea,select{font:inherit}
.reading-progress{position:fixed;inset:0 0 auto 0;height:4px;z-index:120;background:rgba(255,255,255,.06)}
.reading-progress span{display:block;height:100%;width:0;background:linear-gradient(90deg,var(--gold),var(--ruby),var(--cyan));box-shadow:0 0 18px rgba(255,226,163,.75)}
.site-header{
  position:sticky;top:0;z-index:100;
  width:var(--container);
  margin:16px auto 0;
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 14px;
  border:1px solid var(--line);
  border-radius:24px;
  background:rgba(7,8,13,.74);
  backdrop-filter:blur(18px);
  box-shadow:0 14px 45px rgba(0,0,0,.28);
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand img{width:168px;height:auto}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{
  position:relative;
  padding:12px 14px;
  border-radius:999px;
  color:rgba(248,242,227,.76);
  font-size:14px;
  transition:background .25s ease,color .25s ease,transform .25s ease;
}
.main-nav a:hover{color:#fff;background:rgba(255,255,255,.08);transform:translateY(-1px)}
.main-nav a[aria-current="page"]{color:#11151e;background:linear-gradient(135deg,var(--gold-2),var(--gold))}
.nav-toggle{display:none;width:46px;height:46px;border:1px solid var(--line);border-radius:15px;background:rgba(255,255,255,.06);color:#fff;cursor:pointer}
.nav-toggle span{display:block;width:20px;height:2px;background:#fff;margin:5px auto;border-radius:2px;transition:transform .25s ease,opacity .25s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.site-main{width:var(--container);margin:0 auto;padding:44px 0 72px}
.hero-shell{
  position:relative;
  min-height:650px;
  display:grid;
  grid-template-columns:minmax(0,1.02fr) minmax(360px,.78fr);
  gap:40px;
  align-items:center;
  padding:58px;
  overflow:hidden;
  border-radius:42px;
  border:1px solid var(--line);
  background:
    linear-gradient(135deg,rgba(255,255,255,.08),rgba(255,255,255,.02)),
    radial-gradient(circle at 72% 20%,rgba(212,155,53,.24),transparent 26rem),
    linear-gradient(145deg,#0d111a,#090a10 62%,#161009);
  box-shadow:var(--shadow);
}
.hero-shell:before,.hero-shell:after{content:"";position:absolute;pointer-events:none}
.hero-shell:before{width:360px;height:360px;border:1px solid rgba(255,226,163,.18);border-radius:50%;right:-98px;top:-98px;box-shadow:inset 0 0 50px rgba(212,155,53,.07)}
.hero-shell:after{left:34px;bottom:30px;width:210px;height:210px;background:linear-gradient(135deg,rgba(255,226,163,.16),transparent);clip-path:polygon(50% 0,100% 50%,50% 100%,0 50%);opacity:.6}
.hero-board{position:absolute;inset:auto 36% 0 auto;width:360px;height:360px;opacity:.16;transform:rotate(12deg);background:conic-gradient(from 45deg,#fff 0 25%,transparent 0 50%,#fff 0 75%,transparent 0);background-size:72px 72px;filter:blur(.1px)}
.hero-copy{position:relative;z-index:2;max-width:760px}
.eyebrow,.section-topline{display:inline-flex;align-items:center;gap:10px;text-transform:uppercase;letter-spacing:.18em;color:var(--gold-2);font-size:12px;font-weight:800}
.eyebrow:before,.section-topline:before{content:"";width:34px;height:1px;background:currentColor;box-shadow:0 0 12px currentColor}
h1{font-family:var(--font-display);font-size:clamp(42px,6.2vw,84px);line-height:.96;margin:18px 0 22px;color:#fff9ea;letter-spacing:-.045em;text-wrap:balance}
.hero-description{max-width:660px;color:rgba(248,242,227,.78);font-size:18px;line-height:1.75;margin:0}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.primary-link,.ghost-link{display:inline-flex;align-items:center;justify-content:center;min-height:50px;padding:0 22px;border-radius:999px;font-weight:800;transition:transform .25s ease,box-shadow .25s ease,background .25s ease}
.primary-link{color:#11151e;background:linear-gradient(135deg,var(--gold-2),var(--gold));box-shadow:0 18px 36px rgba(212,155,53,.26)}
.primary-link:hover{transform:translateY(-2px);box-shadow:0 24px 46px rgba(212,155,53,.35)}
.ghost-link{border:1px solid var(--line);background:rgba(255,255,255,.05);color:#fff}
.ghost-link:hover{background:rgba(255,255,255,.1);transform:translateY(-2px)}
.hero-visual{position:relative;z-index:2;margin:0;align-self:stretch;min-height:510px;border-radius:34px;overflow:hidden;border:1px solid rgba(255,255,255,.15);background:#111827;box-shadow:0 28px 80px rgba(0,0,0,.42);transform-style:preserve-3d;transition:transform .18s linear}
.hero-visual:before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 35%,rgba(0,0,0,.72));z-index:1;pointer-events:none}
.hero-visual:after{content:"♞";position:absolute;right:20px;top:12px;font-size:74px;line-height:1;color:rgba(255,226,163,.24);z-index:2;text-shadow:0 0 22px rgba(212,155,53,.18)}
.hero-visual img{width:100%;height:100%;object-fit:cover;filter:saturate(1.07) contrast(1.04)}
.hero-caption{position:absolute;left:22px;right:22px;bottom:20px;z-index:2;color:#fff;margin:0;font-size:14px;line-height:1.45;padding:14px 16px;border-radius:18px;background:rgba(7,8,13,.62);backdrop-filter:blur(12px);border:1px solid rgba(255,255,255,.13)}
.switchboard{display:grid;grid-template-columns:.82fr 1.18fr;gap:28px;align-items:stretch;margin:34px 0;padding:30px;border-radius:34px;border:1px solid var(--line);background:rgba(255,255,255,.045)}
.switch-head{padding:10px 0 10px 10px}
.switch-head span{display:inline-flex;color:var(--gold-2);font-weight:900;text-transform:uppercase;letter-spacing:.16em;font-size:12px}
.switch-head p{font-size:24px;line-height:1.25;margin:12px 0 0;color:#f8f2e3;font-family:var(--font-display)}
.switch-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px}
.switch-card{position:relative;min-height:148px;padding:18px;border-radius:24px;overflow:hidden;border:1px solid var(--line);background:linear-gradient(150deg,rgba(255,255,255,.10),rgba(255,255,255,.035));display:flex;flex-direction:column;justify-content:space-between;transition:transform .25s ease,border-color .25s ease,background .25s ease}
.switch-card:before{content:"";position:absolute;inset:auto -40px -40px auto;width:100px;height:100px;border-radius:50%;background:rgba(212,155,53,.20);filter:blur(10px);transition:transform .3s ease}
.switch-card:hover{transform:translateY(-5px);border-color:rgba(255,226,163,.5);background:linear-gradient(150deg,rgba(255,255,255,.14),rgba(255,255,255,.05))}
.switch-card:hover:before{transform:scale(1.4)}
.switch-card.is-current{border-color:rgba(255,226,163,.7);box-shadow:inset 0 0 0 1px rgba(255,226,163,.16)}
.switch-no{font-family:var(--font-display);font-size:38px;color:rgba(255,226,163,.82)}
.switch-card strong{font-size:16px;line-height:1.25;position:relative;z-index:1}
.switch-card em{font-style:normal;color:rgba(248,242,227,.58);font-size:13px;position:relative;z-index:1}
.toc-panel{display:grid;grid-template-columns:.45fr 1fr;gap:28px;align-items:start;margin:34px 0;padding:34px;border-radius:34px;color:var(--ink);background:linear-gradient(135deg,var(--paper),#fff9ea);box-shadow:0 24px 60px rgba(0,0,0,.20)}
.toc-panel h2{font-family:var(--font-display);font-size:34px;line-height:1.05;margin:12px 0 0;color:var(--ink)}
.toc-panel .section-topline{color:#9b6a18}
.toc-links{display:flex;flex-wrap:wrap;gap:10px}
.toc-links a{display:inline-flex;align-items:center;min-height:42px;padding:0 16px;border-radius:999px;color:#1e2533;background:#fff;border:1px solid var(--dark-line);font-weight:750;font-size:14px;transition:background .2s ease,color .2s ease,transform .2s ease}
.toc-links a:hover{background:#11151e;color:#fff;transform:translateY(-2px)}
.article-shell{position:relative;margin:34px 0;border-radius:42px;background:linear-gradient(180deg,var(--paper-2),var(--paper));color:var(--ink);box-shadow:var(--shadow);overflow:hidden;border:1px solid rgba(244,209,129,.28)}
.article-shell:before{content:"";position:absolute;left:0;top:0;bottom:0;width:22px;background:repeating-linear-gradient(45deg,#11151e 0 16px,#f8f2e3 16px 32px);opacity:.95}
.article-mark{position:absolute;right:28px;top:24px;width:90px;height:90px;border:1px solid rgba(17,21,30,.16);border-radius:50%;display:grid;place-items:center;color:rgba(17,21,30,.18);font-family:var(--font-display);font-size:44px;pointer-events:none}
.article-body{padding:58px 70px 68px 78px;max-width:1080px;margin:0 auto}
.article-body h2{font-family:var(--font-display);font-size:clamp(30px,4.4vw,54px);line-height:1.02;letter-spacing:-.035em;margin:0 0 22px;color:#11151e;text-wrap:balance}
.article-body h3{font-size:22px;line-height:1.25;margin:30px 0 14px;color:#172033}
.article-body p{font-size:17px;line-height:1.86;color:#303746;margin:0 0 20px}
.article-body a{color:#a56d12;text-decoration:underline;text-underline-offset:3px}
.article-body ul,.article-body ol{margin:18px 0 24px;padding-left:0;list-style:none;display:grid;gap:10px}
.article-body li{position:relative;padding:12px 14px 12px 42px;border-radius:16px;background:rgba(255,255,255,.55);border:1px solid rgba(17,21,30,.08);line-height:1.65;color:#303746}
.article-body li:before{content:"";position:absolute;left:17px;top:24px;width:10px;height:10px;transform:rotate(45deg);background:var(--gold);box-shadow:0 0 0 4px rgba(212,155,53,.13)}
.article-body strong{color:#10141d}
.article-intro{padding:24px 0 10px;border-bottom:1px solid rgba(17,21,30,.12);margin-bottom:36px}
.article-slice{position:relative;padding:42px 0;border-bottom:1px solid rgba(17,21,30,.10)}
.article-slice:last-child{border-bottom:0}
.article-slice:nth-of-type(odd):before{content:"";position:absolute;right:-70px;top:38px;width:120px;height:120px;border-radius:30px;background:linear-gradient(135deg,rgba(212,155,53,.14),transparent);transform:rotate(45deg);pointer-events:none}
.table-scroll{overflow-x:auto;margin:28px 0;border-radius:22px;border:1px solid rgba(17,21,30,.16);box-shadow:0 18px 36px rgba(17,21,30,.08);background:#fff}
.article-body table{width:100%;border-collapse:collapse;min-width:620px;background:#fff}
.article-body th,.article-body td{padding:16px 18px;border:1px solid rgba(17,21,30,.12);vertical-align:top;text-align:left;line-height:1.55;color:#2b3241}
.article-body th{background:#11151e;color:#fff9ea;font-weight:850}
.article-body tr:nth-child(even) td{background:#fbf6e9}
.article-body img{width:100%;border-radius:28px;box-shadow:0 28px 60px rgba(17,21,30,.18);border:1px solid rgba(17,21,30,.12)}
.article-figure,.article-body figure{margin:32px 0;position:relative}
.article-body figcaption{font-size:14px;line-height:1.55;color:#59606e;margin:12px 12px 0}
.article-note,.article-body aside{margin:28px 0;padding:24px 26px;border-radius:24px;background:linear-gradient(135deg,rgba(212,155,53,.16),rgba(255,255,255,.58));border:1px solid rgba(212,155,53,.38);box-shadow:0 18px 40px rgba(212,155,53,.10)}
.article-note p:last-child,.article-body aside p:last-child{margin-bottom:0}
.article-body blockquote{margin:30px 0;padding:22px 26px;border-left:5px solid var(--gold);background:rgba(255,255,255,.62);border-radius:18px;color:#242b39}
.faq-zone{margin:34px 0;padding:48px;border-radius:42px;background:linear-gradient(145deg,#111722,#090a10);border:1px solid var(--line);box-shadow:var(--shadow);position:relative;overflow:hidden}
.faq-zone:before{content:"?";position:absolute;right:36px;top:-54px;font-family:var(--font-display);font-size:220px;color:rgba(255,226,163,.07);line-height:1;pointer-events:none}
.faq-zone h2{font-family:var(--font-display);font-size:clamp(38px,5vw,66px);line-height:1;margin:12px 0 28px;color:#fff9ea;letter-spacing:-.035em}
.faq-list{display:grid;gap:12px;position:relative;z-index:2}
.faq-item{border:1px solid var(--line);border-radius:22px;overflow:hidden;background:rgba(255,255,255,.045)}
.faq-question{width:100%;border:0;background:transparent;color:#f8f2e3;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;padding:20px 22px;cursor:pointer;font-weight:850;line-height:1.35}
.faq-question i{width:28px;height:28px;border-radius:50%;border:1px solid rgba(255,255,255,.22);position:relative;flex:0 0 auto;transition:transform .25s ease;background:rgba(255,255,255,.05)}
.faq-question i:before,.faq-question i:after{content:"";position:absolute;left:50%;top:50%;width:12px;height:2px;background:var(--gold-2);transform:translate(-50%,-50%);border-radius:2px}
.faq-question i:after{transform:translate(-50%,-50%) rotate(90deg)}
.faq-question[aria-expanded="true"] i{transform:rotate(45deg);background:rgba(212,155,53,.2)}
.faq-answer{padding:0 22px 22px;color:rgba(248,242,227,.78)}
.faq-answer p{margin:0;color:rgba(248,242,227,.78);line-height:1.75}
.related-panel{margin:34px 0 0;padding:42px;border-radius:38px;background:linear-gradient(135deg,rgba(255,255,255,.08),rgba(255,255,255,.025));border:1px solid var(--line)}
.related-panel h2{font-family:var(--font-display);font-size:42px;line-height:1;margin:12px 0 24px;color:#fff9ea}
.related-links{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.related-links a{min-height:108px;border-radius:24px;padding:18px;border:1px solid var(--line);background:rgba(255,255,255,.055);display:flex;flex-direction:column;justify-content:space-between;font-weight:850;transition:transform .25s ease,background .25s ease,border-color .25s ease}
.related-links a:hover{transform:translateY(-4px);background:rgba(255,255,255,.1);border-color:rgba(255,226,163,.48)}
.related-links span{font-family:var(--font-display);color:var(--gold-2);font-size:32px}
.site-footer{width:var(--container);margin:0 auto 24px;padding:34px;border-radius:34px;border:1px solid var(--line);background:#07080d;display:grid;grid-template-columns:auto 1fr auto;gap:28px;align-items:center;color:rgba(248,242,227,.72)}
.footer-logo img{width:168px;height:auto}
.site-footer p{margin:0;max-width:620px;line-height:1.65}
.site-footer nav{display:flex;flex-wrap:wrap;justify-content:flex-end;gap:10px}
.site-footer nav a{font-size:13px;color:rgba(248,242,227,.7);padding:8px 10px;border-radius:999px;border:1px solid transparent}
.site-footer nav a:hover{color:#fff;border-color:var(--line)}
.to-top{position:fixed;right:22px;bottom:22px;z-index:80;width:48px;height:48px;border-radius:50%;border:1px solid var(--line);background:rgba(7,8,13,.72);backdrop-filter:blur(14px);color:#fff;cursor:pointer;opacity:0;visibility:hidden;transform:translateY(12px);transition:opacity .25s ease,visibility .25s ease,transform .25s ease,background .25s ease}
.to-top.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.to-top:hover{background:linear-gradient(135deg,var(--gold),var(--ruby));color:#11151e}
.accent-ruby .primary-link,.accent-ruby .article-body li:before{background:linear-gradient(135deg,#ffd2d4,var(--ruby))}
.accent-cyan .primary-link,.accent-cyan .article-body li:before{background:linear-gradient(135deg,#d7fbff,var(--cyan))}
.accent-emerald .primary-link,.accent-emerald .article-body li:before{background:linear-gradient(135deg,#d6fff3,var(--emerald))}
.js .reveal{opacity:0;transform:translateY(26px);transition:opacity .65s ease,transform .65s ease}
.js .reveal.is-visible{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion:reduce){*{scroll-behavior:auto!important;animation:none!important;transition:none!important}.js .reveal{opacity:1;transform:none}}
@media (max-width:1100px){
  :root{--container:min(100% - 28px,100%)}
  .hero-shell{grid-template-columns:1fr;min-height:auto;padding:44px}
  .hero-visual{min-height:420px}
  .switchboard,.toc-panel{grid-template-columns:1fr}
  .switch-grid{grid-template-columns:repeat(2,1fr)}
  .site-footer{grid-template-columns:1fr;text-align:center}.site-footer nav{justify-content:center}.footer-logo{display:flex;justify-content:center}
}
@media (max-width:860px){
  .site-header{margin-top:10px;border-radius:20px}
  .nav-toggle{display:block}
  .main-nav{position:absolute;top:calc(100% + 10px);right:0;left:0;display:grid;gap:8px;padding:14px;border-radius:22px;background:rgba(7,8,13,.96);border:1px solid var(--line);box-shadow:0 22px 46px rgba(0,0,0,.35);opacity:0;visibility:hidden;transform:translateY(-8px);transition:opacity .25s ease,visibility .25s ease,transform .25s ease}
  .main-nav.is-open{opacity:1;visibility:visible;transform:translateY(0)}
  .main-nav a{width:100%;border-radius:16px}
  .hero-shell{padding:32px 24px;border-radius:30px}
  .hero-actions{gap:10px}.primary-link,.ghost-link{width:100%}
  .switchboard,.toc-panel,.faq-zone,.related-panel{border-radius:28px;padding:26px}
  .article-shell{border-radius:30px}.article-shell:before{width:12px}.article-body{padding:38px 24px 46px 34px}.article-mark{display:none}
  .related-links{grid-template-columns:1fr}
}
@media (max-width:560px){
  .brand img,.footer-logo img{width:140px}
  .site-main{padding-top:28px}
  h1{font-size:40px}
  .hero-description{font-size:16px}
  .hero-visual{min-height:280px;border-radius:24px}
  .switch-grid{grid-template-columns:1fr}
  .toc-links a{width:100%;justify-content:center;text-align:center}
  .article-body h2{font-size:30px}.article-body h3{font-size:20px}.article-body p,.article-body li{font-size:16px;line-height:1.75}
  .article-body li{padding-left:38px}.article-body th,.article-body td{padding:13px 14px}
  .faq-zone h2{font-size:38px}.faq-question{padding:18px}.faq-answer{padding:0 18px 18px}
}