/* ============================================================
   文明六 · 方略 — shared stylesheet
   ============================================================ */
:root{
  --bg:#070a0f;
  --bg-2:#0a0f16;
  --panel:#0f1620;
  --panel-2:#131c27;
  --panel-3:#18222e;
  --ink:#eee4d1;
  --ink-2:#d8cdb8;
  --muted:#a49b88;
  --faint:#77705f;
  --gold:#c9a25a;
  --gold-2:#efd293;
  --gold-3:#f7e4b8;
  --line:rgba(201,162,90,.2);
  --line-2:rgba(201,162,90,.42);
  --line-3:rgba(201,162,90,.62);
  --science:#63b9b7;
  --culture:#c09ac9;
  --domination:#cf7a63;
  --religion:#d8c9a5;
  --diplomacy:#7fa7cf;
  --green:#8fb07a;
  --red:#cf6a58;
  --shadow:0 28px 70px rgba(0,0,0,.5);
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC","STSong","SimSun",Georgia,serif;
  --sans:"Noto Sans SC","Source Han Sans SC","Microsoft YaHei","PingFang SC","Segoe UI",sans-serif;
  --mono:"Cascadia Mono",Consolas,"Courier New",monospace;
  --max:1180px;
  --header:72px;
  --radius:2px;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:96px;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:var(--sans);font-size:16.5px;line-height:1.9;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:-2;pointer-events:none;
  background:
    radial-gradient(1000px 700px at 8% -12%,rgba(201,162,90,.1),transparent 62%),
    radial-gradient(900px 600px at 100% 2%,rgba(99,185,183,.06),transparent 60%),
    radial-gradient(1100px 800px at 50% 112%,rgba(192,154,201,.045),transparent 66%);
}
body::after{
  content:"";position:fixed;inset:0;z-index:-1;pointer-events:none;opacity:.5;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='56' height='64' viewBox='0 0 56 64'%3E%3Cpath d='M28 1 55 16.5v31L28 63 1 47.5v-31z' fill='none' stroke='%23d9b36a' stroke-opacity='.055'/%3E%3C/svg%3E");
  background-size:56px 64px;
  mask-image:linear-gradient(180deg,rgba(0,0,0,.8),transparent 70%);
}
::selection{background:rgba(201,162,90,.34);color:#fff}
img,svg{max-width:100%}
img{display:block;height:auto}
a{color:var(--gold-2);text-decoration:none}
a:hover{text-decoration:underline;text-underline-offset:3px}
button{font:inherit;color:inherit}
h1,h2,h3,h4{font-family:var(--serif);font-weight:700;line-height:1.28;margin:0;letter-spacing:.015em}
p{margin:0 0 1.05em}
ul,ol{margin:0 0 1.1em;padding-left:1.4em}
li{margin:.3em 0}
hr{border:0;border-top:1px solid var(--line);margin:2.6em 0}
strong{color:#fff;font-weight:700}
em{color:var(--gold-2);font-style:normal}
code{font-family:var(--mono);font-size:.88em;background:rgba(201,162,90,.1);padding:.14em .42em;color:var(--gold-2);border:1px solid rgba(201,162,90,.14)}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.container{width:min(var(--max),calc(100% - 44px));margin-inline:auto}
.narrow{max-width:850px;margin-inline:auto}
.section{padding:96px 0;position:relative}
.section--tight{padding:64px 0}
.section--alt{background:linear-gradient(180deg,rgba(255,255,255,.016),rgba(0,0,0,.14));border-top:1px solid rgba(201,162,90,.08);border-bottom:1px solid rgba(201,162,90,.08)}
.section--flush{padding-top:0}

/* typography helpers */
.eyebrow{display:flex;align-items:center;gap:.9em;font-size:11px;font-weight:700;letter-spacing:.28em;text-transform:uppercase;color:var(--gold);margin-bottom:1.15em;font-family:var(--sans)}
.eyebrow::before{content:"";width:32px;height:1px;background:var(--gold);opacity:.8;flex:0 0 auto}
.eyebrow .num{color:var(--faint);font-family:var(--serif);letter-spacing:.08em}
.section-title{font-size:clamp(1.9rem,3.6vw,2.75rem);line-height:1.2;margin-bottom:.38em}
.section-title .accent{color:var(--gold-2)}
.lede{color:var(--muted);font-size:1.02rem;max-width:72ch;margin-bottom:0}
.section-head{margin-bottom:44px}
.section-head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:36px;flex-wrap:wrap}
.section-head--row .lede{max-width:54ch}
.gold{color:var(--gold-2)}
.muted{color:var(--muted)}
.small{font-size:.86rem}
.center{text-align:center}
.center .eyebrow{justify-content:center}
.center .eyebrow::before{display:none}
.center .lede{margin-inline:auto}
.mt1{margin-top:1rem}.mt2{margin-top:2rem}.mt3{margin-top:3rem}
.mb0{margin-bottom:0}.mb1{margin-bottom:1rem}.mb2{margin-bottom:2rem}

/* scroll progress */
#progress{position:fixed;top:0;left:0;height:2px;width:0;background:linear-gradient(90deg,var(--gold),var(--gold-2));z-index:300;box-shadow:0 0 12px rgba(239,210,147,.5)}

/* header */
.site-header{position:fixed;top:0;left:0;right:0;height:var(--header);z-index:200;display:flex;align-items:center;background:rgba(7,10,15,.7);backdrop-filter:blur(16px);border-bottom:1px solid rgba(201,162,90,.14);transition:background .3s,border-color .3s}
.site-header.is-solid{background:rgba(7,10,15,.95);border-bottom-color:rgba(201,162,90,.26)}
.nav{display:flex;align-items:center;justify-content:space-between;gap:22px;width:min(1320px,calc(100% - 40px));margin-inline:auto}
.brand{display:flex;align-items:center;gap:12px;color:var(--ink);text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none}
.brand-mark{width:38px;height:42px;display:grid;place-items:center;position:relative;flex:0 0 auto}
.brand-mark::before{content:"";position:absolute;inset:0;background:linear-gradient(160deg,rgba(201,162,90,.25),rgba(201,162,90,.04));clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);border:0}
.brand-mark::after{content:"";position:absolute;inset:4px;border:1px solid rgba(239,210,147,.55);clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%)}
.brand-mark span{position:relative;font-family:var(--serif);font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--gold-2)}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text b{font-family:var(--serif);font-size:16px;letter-spacing:.14em;white-space:nowrap}
.brand-text small{font-size:8px;letter-spacing:.24em;color:var(--faint);text-transform:uppercase;margin-top:5px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0}
.nav-links a{display:block;padding:10px 11px;color:var(--muted);font-size:12.5px;letter-spacing:.06em;text-decoration:none;position:relative;transition:color .2s;white-space:nowrap}
.nav-links a::after{content:"";position:absolute;left:11px;right:11px;bottom:4px;height:1px;background:var(--gold);transform:scaleX(0);transform-origin:left;transition:transform .25s}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1)}
.nav-links a.active{color:var(--gold-2)}
.nav-cta{display:inline-flex;align-items:center;gap:8px;padding:9px 14px;border:1px solid var(--line-2);color:var(--gold-2);font-size:11px;letter-spacing:.12em;white-space:nowrap;transition:.2s}
.nav-cta:hover{background:var(--gold);color:#0b0907;text-decoration:none;border-color:var(--gold)}
.menu-btn{display:none;width:42px;height:42px;border:1px solid var(--line);background:transparent;align-items:center;justify-content:center;cursor:pointer}
.menu-btn span{display:block;width:18px;height:1px;background:var(--gold-2);position:relative;transition:.2s}
.menu-btn span::before,.menu-btn span::after{content:"";position:absolute;left:0;width:18px;height:1px;background:var(--gold-2);transition:.2s}
.menu-btn span::before{top:-6px}.menu-btn span::after{top:6px}
.menu-btn[aria-expanded="true"] span{background:transparent}
.menu-btn[aria-expanded="true"] span::before{top:0;transform:rotate(45deg)}
.menu-btn[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg)}
.mobile-nav{display:none;position:fixed;inset:var(--header) 0 auto 0;z-index:199;background:rgba(7,10,15,.985);border-bottom:1px solid var(--line);padding:12px 22px 24px;flex-direction:column;max-height:calc(100vh - var(--header));overflow:auto}
.mobile-nav a{padding:13px 4px;border-bottom:1px solid rgba(201,162,90,.1);color:var(--ink);text-decoration:none;font-size:15px}
.mobile-nav a:last-child{border-bottom:0}
.mobile-nav.open{display:flex}

/* buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:10px;padding:13px 23px;border:1px solid transparent;font-size:12px;font-weight:700;letter-spacing:.15em;text-transform:uppercase;text-decoration:none;cursor:pointer;transition:.22s;border-radius:1px;font-family:var(--sans)}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn--primary{background:linear-gradient(180deg,var(--gold-2),var(--gold));color:#100c06;border-color:var(--gold-2);box-shadow:0 10px 30px rgba(201,162,90,.18)}
.btn--primary:hover{background:linear-gradient(180deg,#f8e7bf,var(--gold-2));box-shadow:0 12px 34px rgba(201,162,90,.3)}
.btn--ghost{background:rgba(255,255,255,.02);border-color:rgba(201,162,90,.38);color:var(--gold-2)}
.btn--ghost:hover{background:rgba(201,162,90,.09);border-color:var(--gold)}
.btn--small{padding:9px 14px;font-size:10.5px;letter-spacing:.11em}
.btn .arrow{transition:transform .2s}
.btn:hover .arrow{transform:translateX(3px)}

/* hero */
.hero{position:relative;padding:calc(var(--header) + 74px) 0 72px;overflow:hidden;min-height:min(900px,100vh);display:flex;align-items:center}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(1.4px 1.4px at 14% 22%,rgba(255,255,255,.55),transparent 100%),
    radial-gradient(1.2px 1.2px at 28% 68%,rgba(255,255,255,.38),transparent 100%),
    radial-gradient(1.6px 1.6px at 44% 12%,rgba(239,210,147,.5),transparent 100%),
    radial-gradient(1.1px 1.1px at 62% 44%,rgba(255,255,255,.3),transparent 100%),
    radial-gradient(1.5px 1.5px at 82% 18%,rgba(239,210,147,.45),transparent 100%),
    radial-gradient(1.2px 1.2px at 92% 72%,rgba(255,255,255,.32),transparent 100%),
    radial-gradient(1px 1px at 71% 84%,rgba(255,255,255,.28),transparent 100%);
  opacity:.8;
}
.hero::after{
  content:"";position:absolute;left:50%;top:50%;width:1100px;height:1100px;transform:translate(-50%,-50%);
  border:1px solid rgba(201,162,90,.055);border-radius:50%;pointer-events:none;
  box-shadow:0 0 0 90px rgba(201,162,90,.018),0 0 0 180px rgba(201,162,90,.012);
}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:52px;align-items:center}
.hero-copy{max-width:600px}
.hero-kicker{display:flex;align-items:center;gap:10px;flex-wrap:wrap;font-size:10.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--gold);margin-bottom:24px}
.hero-kicker .dot{width:6px;height:6px;background:var(--gold-2);transform:rotate(45deg);box-shadow:0 0 12px rgba(239,210,147,.7)}
.hero-kicker .sep{color:var(--faint)}
.hero h1{font-size:clamp(2.8rem,5.4vw,4.9rem);line-height:1.08;letter-spacing:.015em;margin-bottom:24px}
.hero h1 .line{display:block}
.hero h1 .gold{position:relative;display:inline-block}
.hero h1 .gold::after{content:"";position:absolute;left:2px;right:2px;bottom:-8px;height:1px;background:linear-gradient(90deg,var(--gold),transparent);opacity:.6}
.hero-sub{color:var(--muted);font-size:1.02rem;max-width:50ch;margin-bottom:30px}
.hero-actions{display:flex;gap:13px;flex-wrap:wrap;margin-bottom:40px}
.hero-meta{display:flex;gap:34px;flex-wrap:wrap;padding-top:24px;border-top:1px solid var(--line)}
.hero-meta div{display:flex;flex-direction:column;gap:2px}
.hero-meta b{font-family:var(--serif);font-size:1.75rem;color:var(--gold-2);line-height:1.2;font-weight:700}
.hero-meta small{font-size:9.5px;letter-spacing:.2em;color:var(--faint);text-transform:uppercase}
.hero-art{position:relative}
.hero-frame{position:relative;border:1px solid rgba(201,162,90,.34);background:#081018;box-shadow:var(--shadow);padding:8px}
.hero-frame::before,.hero-frame::after{content:"";position:absolute;width:34px;height:34px;pointer-events:none;z-index:2}
.hero-frame::before{top:-1px;left:-1px;border-top:2px solid var(--gold);border-left:2px solid var(--gold)}
.hero-frame::after{bottom:-1px;right:-1px;border-bottom:2px solid var(--gold);border-right:2px solid var(--gold)}
.hero-frame img{width:100%;height:auto;display:block}
.hero-frame-bar{display:flex;align-items:center;justify-content:space-between;gap:10px;padding:9px 12px 3px;font-size:9px;letter-spacing:.18em;text-transform:uppercase;color:var(--faint)}
.hero-frame-bar .live{display:inline-flex;align-items:center;gap:7px;color:var(--gold)}
.hero-frame-bar .live::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--green);box-shadow:0 0 8px rgba(143,176,122,.7)}
.hero-chip{position:absolute;z-index:3;display:flex;align-items:center;gap:10px;padding:10px 13px;background:rgba(8,14,20,.92);border:1px solid var(--line-2);box-shadow:0 10px 28px rgba(0,0,0,.4);font-size:10.5px;letter-spacing:.05em;color:var(--muted);backdrop-filter:blur(6px)}
.hero-chip b{color:var(--gold-2);font-family:var(--serif);font-size:14px;letter-spacing:.02em}
.hero-chip--a{left:-22px;bottom:72px}
.hero-chip--b{right:-18px;top:44px}
.hero-chip .pip{width:7px;height:7px;background:var(--science);box-shadow:0 0 10px rgba(99,185,183,.7)}
.hero-chip--b .pip{background:var(--culture);box-shadow:0 0 10px rgba(192,154,201,.7)}
.scroll-hint{position:absolute;bottom:26px;left:50%;transform:translateX(-50%);font-size:9px;letter-spacing:.32em;color:var(--faint);display:flex;flex-direction:column;align-items:center;gap:10px;z-index:2}
.scroll-hint::after{content:"";width:1px;height:34px;background:linear-gradient(180deg,var(--gold),transparent);animation:scrollPulse 2.4s ease-in-out infinite}
@keyframes scrollPulse{0%,100%{opacity:.3;transform:scaleY(.7)}50%{opacity:1;transform:scaleY(1)}}

/* page hero */
.page-hero{position:relative;padding:calc(var(--header) + 72px) 0 58px;border-bottom:1px solid rgba(201,162,90,.1);overflow:hidden}
.page-hero::before{
  content:attr(data-era);position:absolute;right:-.02em;top:22px;font-family:var(--serif);font-weight:700;font-size:clamp(7rem,18vw,15rem);line-height:1;color:rgba(201,162,90,.024);letter-spacing:.02em;pointer-events:none;white-space:nowrap
}
.page-hero__grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 210px;gap:48px;align-items:center}
.breadcrumb{display:flex;align-items:center;gap:9px;font-size:10.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--faint);margin-bottom:24px;flex-wrap:wrap}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--gold-2)}
.breadcrumb .sep{opacity:.45}
.page-hero h1{font-size:clamp(2.4rem,5vw,4rem);line-height:1.12;margin-bottom:18px}
.page-hero h1 .gold{display:inline-block}
.page-hero .lede{max-width:64ch}
.page-chips{display:flex;gap:8px;flex-wrap:wrap;margin-top:26px}
.chip{display:inline-flex;align-items:center;gap:7px;padding:6px 11px;border:1px solid var(--line);font-size:10px;letter-spacing:.11em;color:var(--muted);background:rgba(255,255,255,.015)}
.chip b{color:var(--gold-2);font-weight:600}
.chip--science{border-color:rgba(99,185,183,.3);color:#a9dbd9}
.chip--culture{border-color:rgba(192,154,201,.3);color:#dcc4e1}
.chip--war{border-color:rgba(207,122,99,.3);color:#e6b0a2}
.emblem{width:190px;height:210px;position:relative;display:grid;place-items:center;margin-left:auto}
.emblem::before{content:"";position:absolute;inset:0;clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);background:linear-gradient(160deg,rgba(201,162,90,.13),rgba(201,162,90,.015));border:0}
.emblem::after{content:"";position:absolute;inset:4px;clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);border:1px solid rgba(201,162,90,.32)}
.emblem svg{position:relative;width:116px;height:116px;z-index:1;filter:drop-shadow(0 8px 22px rgba(0,0,0,.5))}
.emblem .emblem-label{position:absolute;bottom:36px;font-size:8px;letter-spacing:.28em;color:var(--gold);text-transform:uppercase}

/* guide layout + toc */
.guide-layout{display:grid;grid-template-columns:236px minmax(0,1fr);gap:56px;padding:64px 0 100px;align-items:start}
.toc{position:sticky;top:calc(var(--header) + 26px);max-height:calc(100vh - var(--header) - 52px);overflow:auto;padding-right:8px;border-right:1px solid rgba(201,162,90,.1)}
.toc-title{font-size:9.5px;letter-spacing:.24em;text-transform:uppercase;color:var(--faint);margin-bottom:14px;padding-left:12px}
.toc ol{list-style:none;margin:0;padding:0;counter-reset:toc}
.toc li{margin:0}
.toc a{position:relative;display:block;padding:8px 12px 8px 40px;border-left:1px solid transparent;color:var(--muted);font-size:12.5px;line-height:1.5;text-decoration:none;transition:.2s}
.toc a::before{position:absolute;left:12px;top:8px;counter-increment:toc;content:counter(toc,decimal-leading-zero);color:var(--faint);font-family:var(--mono);font-size:10px}
.toc a:hover{color:var(--gold-2);background:rgba(201,162,90,.04)}
.toc a.active{color:var(--gold-2);border-left-color:var(--gold);background:linear-gradient(90deg,rgba(201,162,90,.08),transparent)}
.toc .toc-note{margin-top:18px;padding:12px;border:1px solid var(--line);font-size:10.5px;line-height:1.7;color:var(--faint)}
.toc .toc-note b{color:var(--gold);display:block;font-size:9px;letter-spacing:.15em;margin-bottom:4px;text-transform:uppercase}
.guide{min-width:0;max-width:860px}
.guide > section{padding-bottom:64px;margin-bottom:64px;border-bottom:1px solid rgba(201,162,90,.1);scroll-margin-top:96px}
.guide > section:last-child{border-bottom:0;margin-bottom:0;padding-bottom:20px}
.chapter-head{margin-bottom:28px}
.chapter-head .eyebrow{margin-bottom:14px}
.chapter-head h2{font-size:clamp(1.75rem,3vw,2.45rem);line-height:1.2;margin-bottom:12px}
.chapter-head .lede{font-size:.98rem}
.guide h3{font-size:1.28rem;margin:2.2em 0 .6em;color:var(--ink);position:relative;padding-left:14px}
.guide h3::before{content:"";position:absolute;left:0;top:.2em;bottom:.14em;width:2px;background:linear-gradient(180deg,var(--gold),rgba(201,162,90,.15))}
.guide h4{font-size:1.02rem;margin:1.6em 0 .45em;color:var(--gold-2);letter-spacing:.04em}
.guide p{color:var(--ink-2)}
.guide > section > p:first-of-type{font-size:1.03rem}
.guide ul,.guide ol{color:var(--ink-2)}
.guide li::marker{color:var(--gold)}
.guide .small{color:var(--muted)}
.guide strong{color:#fff}
.guide .lead-in{color:var(--gold-2);font-weight:600}

/* callouts */
.callout{position:relative;padding:18px 20px 18px 22px;border:1px solid var(--line);border-left:2px solid var(--gold);background:linear-gradient(90deg,rgba(201,162,90,.065),rgba(201,162,90,.012));margin:1.6em 0}
.callout p:last-child{margin-bottom:0}
.callout .callout-title{display:flex;align-items:center;gap:8px;font-size:10px;letter-spacing:.18em;color:var(--gold-2);text-transform:uppercase;font-weight:700;margin-bottom:7px}
.callout--tip{border-left-color:var(--science);background:linear-gradient(90deg,rgba(99,185,183,.07),rgba(99,185,183,.012))}
.callout--tip .callout-title{color:var(--science)}
.callout--warn{border-left-color:var(--red);background:linear-gradient(90deg,rgba(207,106,88,.07),rgba(207,106,88,.012))}
.callout--warn .callout-title{color:#e0a196}
.callout--culture{border-left-color:var(--culture);background:linear-gradient(90deg,rgba(192,154,201,.07),rgba(192,154,201,.012))}
.callout--culture .callout-title{color:var(--culture)}
.callout--quote{font-family:var(--serif);font-size:1.12rem;color:var(--ink);line-height:1.8}

/* cards */
.grid{display:grid;gap:16px}
.grid-2{grid-template-columns:repeat(2,minmax(0,1fr))}
.grid-3{grid-template-columns:repeat(3,minmax(0,1fr))}
.grid-4{grid-template-columns:repeat(4,minmax(0,1fr))}
.grid-5{grid-template-columns:repeat(5,minmax(0,1fr))}
.card{position:relative;background:linear-gradient(160deg,rgba(255,255,255,.028),rgba(255,255,255,.006));border:1px solid var(--line);padding:22px;transition:.25s;overflow:hidden}
.card:hover{border-color:var(--line-2);background:linear-gradient(160deg,rgba(201,162,90,.06),rgba(255,255,255,.01));transform:translateY(-2px)}
.card .card-kicker{font-size:9px;letter-spacing:.2em;text-transform:uppercase;color:var(--faint);margin-bottom:10px}
.card h3{font-size:1.06rem;margin:0 0 8px;padding:0}
.card h3::before{display:none}
.card p{font-size:.88rem;line-height:1.75;color:var(--muted);margin-bottom:0}
.card .card-icon{width:34px;height:34px;display:grid;place-items:center;border:1px solid var(--line);margin-bottom:16px;color:var(--gold-2)}
.card .card-icon svg{width:19px;height:19px}
.card-link{display:inline-flex;align-items:center;gap:7px;margin-top:14px;font-size:10.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--gold);text-decoration:none}
.card-link:hover{color:var(--gold-2);text-decoration:none}
.card-link .arrow{transition:transform .2s}
.card:hover .card-link .arrow{transform:translateX(3px)}
.card--link{cursor:pointer}
.card--link a.stretched{position:absolute;inset:0;z-index:2}
.mini-card{border:1px solid var(--line);background:rgba(255,255,255,.018);padding:16px 17px}
.mini-card .label{font-size:9px;letter-spacing:.18em;color:var(--faint);text-transform:uppercase;margin-bottom:6px}
.mini-card b{font-family:var(--serif);color:var(--gold-2);font-size:1.3rem;display:block;line-height:1.3}
.mini-card small{color:var(--muted);font-size:.78rem;line-height:1.6;display:block;margin-top:4px}

/* victory cards */
.victory-grid{display:grid;grid-template-columns:repeat(5,minmax(0,1fr));gap:12px}
.victory-card{position:relative;padding:24px 18px 20px;border:1px solid rgba(201,162,90,.16);background:linear-gradient(180deg,rgba(255,255,255,.025),rgba(0,0,0,.12));overflow:hidden;transition:.25s;display:flex;flex-direction:column;min-height:300px}
.victory-card::before{content:"";position:absolute;top:0;left:0;right:0;height:2px;background:var(--vc);opacity:.75}
.victory-card::after{content:"";position:absolute;right:-30px;top:-30px;width:110px;height:110px;border-radius:50%;background:var(--vc);opacity:.055;filter:blur(6px)}
.victory-card:hover{border-color:var(--vc);transform:translateY(-3px);box-shadow:0 16px 40px rgba(0,0,0,.35);text-decoration:none}
.vc-icon{width:38px;height:38px;color:var(--vc);margin-bottom:18px}
.vc-icon svg{width:38px;height:38px}
.victory-card h3{font-size:1.22rem;margin-bottom:2px;color:var(--ink)}
.victory-card .en{font-size:8.5px;letter-spacing:.18em;color:var(--faint);text-transform:uppercase;margin-bottom:13px}
.victory-card p{font-size:.82rem;line-height:1.68;color:var(--muted);margin-bottom:14px}
.vc-tags{display:flex;gap:5px;flex-wrap:wrap;margin-top:auto;padding-top:12px;border-top:1px solid rgba(255,255,255,.06)}
.vc-tags span{font-size:8.5px;letter-spacing:.05em;padding:3px 6px;border:1px solid var(--line);color:var(--muted)}
.vc-difficulty{display:flex;gap:3px;margin-top:10px}
.vc-difficulty i{width:14px;height:2px;background:rgba(255,255,255,.12)}
.vc-difficulty i.on{background:var(--vc)}

/* era rail */
.era-rail-wrap{overflow-x:auto;padding-bottom:10px;scrollbar-width:thin}
.era-rail{display:grid;grid-template-columns:repeat(8,minmax(125px,1fr));gap:0;min-width:1000px;position:relative;padding:26px 0 6px}
.era-rail::before{content:"";position:absolute;left:6%;right:6%;top:45px;height:1px;background:linear-gradient(90deg,transparent,var(--line-2) 8%,var(--line-2) 92%,transparent)}
.era-node{position:relative;padding:0 14px;text-align:center}
.era-node .hex{width:38px;height:42px;margin:0 auto 18px;display:grid;place-items:center;position:relative;background:var(--bg-2);z-index:1}
.era-node .hex::before{content:"";position:absolute;inset:0;clip-path:polygon(50% 0,100% 25%,100% 75%,50% 100%,0 75%,0 25%);border:1px solid rgba(201,162,90,.28);background:linear-gradient(160deg,rgba(201,162,90,.1),transparent)}
.era-node .hex span{position:relative;font-family:var(--serif);font-size:11px;color:var(--gold-2)}
.era-node.is-key .hex::before{background:linear-gradient(160deg,rgba(201,162,90,.35),rgba(201,162,90,.05));border-color:var(--gold)}
.era-node b{display:block;font-family:var(--serif);font-size:14px;letter-spacing:.06em;color:var(--ink);margin-bottom:4px}
.era-node small{display:block;font-size:9px;letter-spacing:.1em;color:var(--faint);margin-bottom:9px;font-family:var(--mono)}
.era-node p{font-size:11px;line-height:1.6;color:var(--muted);margin:0}

/* phase cards */
.phase-card{position:relative;display:flex;flex-direction:column;padding:28px 26px 24px;border:1px solid var(--line);background:linear-gradient(165deg,rgba(255,255,255,.03),rgba(255,255,255,.006));overflow:hidden;transition:.25s;min-height:330px}
.phase-card::before{content:attr(data-num);position:absolute;right:14px;top:0;font-family:var(--serif);font-size:5.2rem;line-height:1;color:rgba(201,162,90,.08);font-weight:700}
.phase-card:hover{border-color:var(--line-2);transform:translateY(-3px)}
.phase-card .phase-era{font-size:9.5px;letter-spacing:.2em;color:var(--gold);text-transform:uppercase;margin-bottom:14px}
.phase-card h3{font-size:1.5rem;margin:0 0 8px}
.phase-card h3::before{display:none}
.phase-card > p{font-size:.88rem;color:var(--muted);line-height:1.75;margin-bottom:16px}
.phase-card ul{list-style:none;padding:0;margin:0 0 20px;font-size:.83rem;color:var(--ink-2)}
.phase-card li{padding:7px 0 7px 16px;border-top:1px solid rgba(255,255,255,.05);position:relative;margin:0}
.phase-card li::before{content:"";position:absolute;left:1px;top:15px;width:4px;height:4px;background:var(--gold);transform:rotate(45deg);opacity:.6}
.phase-card .card-link{margin-top:auto}

/* engine / stat strip */
.engine-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:12px}
.engine{padding:20px;border:1px solid var(--line);background:rgba(255,255,255,.018);position:relative;overflow:hidden}
.engine .engine-head{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-bottom:14px}
.engine .engine-head svg{width:24px;height:24px;color:var(--ec,var(--gold))}
.engine .engine-head span{font-size:9px;letter-spacing:.16em;color:var(--faint);text-transform:uppercase}
.engine b{font-family:var(--serif);font-size:1.08rem;color:var(--ink);display:block;margin-bottom:6px}
.engine p{font-size:.8rem;line-height:1.65;color:var(--muted);margin-bottom:13px}
.engine .bar{height:2px;background:rgba(255,255,255,.07);position:relative}
.engine .bar i{position:absolute;left:0;top:0;bottom:0;width:var(--w,60%);background:var(--ec,var(--gold));opacity:.75}
.engine .bar-label{display:flex;justify-content:space-between;font-size:8.5px;letter-spacing:.08em;color:var(--faint);margin-top:7px;text-transform:uppercase}

/* mistakes */
.mistake-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 36px;counter-reset:mistake}
.mistake{display:flex;gap:16px;padding:16px 0;border-top:1px solid rgba(201,162,90,.11);counter-increment:mistake}
.mistake::before{content:counter(mistake,decimal-leading-zero);font-family:var(--mono);font-size:10px;color:var(--gold);padding-top:4px;flex:0 0 24px}
.mistake b{display:block;font-size:.94rem;color:var(--ink);margin-bottom:3px}
.mistake p{font-size:.82rem;line-height:1.7;color:var(--muted);margin:0}
.mistake:nth-child(-n+2){border-top-color:var(--line-2)}

/* figures */
.figure{margin:1.8em 0;border:1px solid var(--line);background:linear-gradient(180deg,#0a1017,#0b1218);overflow:hidden}
.figure-media{padding:10px;background:radial-gradient(circle at 50% 40%,rgba(201,162,90,.035),transparent 65%)}
.figure img{width:100%;height:auto;display:block}
.figure figcaption{padding:12px 16px 14px;border-top:1px solid rgba(201,162,90,.1);font-size:.76rem;line-height:1.7;color:var(--faint)}
.figure figcaption b{color:var(--muted);font-weight:600}
.figure--scroll .figure-media{overflow-x:auto;padding:0}
.figure--scroll img{min-width:760px;padding:10px}
.figure--flush figcaption{padding-top:10px}
.chart-frame{padding:18px 18px 10px}
.chart-frame svg{width:100%;height:auto;display:block}

/* tables */
.table-wrap{overflow-x:auto;margin:1.6em 0;border:1px solid var(--line);background:rgba(255,255,255,.014)}
table{width:100%;border-collapse:collapse;font-size:.84rem;min-width:560px}
thead th{font-size:9px;letter-spacing:.14em;text-transform:uppercase;color:var(--gold);text-align:left;padding:11px 13px;border-bottom:1px solid var(--line-2);background:rgba(201,162,90,.045);white-space:nowrap;font-family:var(--sans);font-weight:700}
tbody td{padding:11px 13px;border-bottom:1px solid rgba(255,255,255,.055);color:var(--ink-2);vertical-align:top;line-height:1.65}
tbody tr:last-child td{border-bottom:0}
tbody tr:hover{background:rgba(201,162,90,.035)}
td strong{color:var(--ink)}
td .muted{color:var(--muted);font-size:.9em}
.table-caption{padding:9px 13px;border-top:1px solid rgba(201,162,90,.1);font-size:10px;color:var(--faint)}

/* tags & pills */
.tag{display:inline-block;padding:2px 7px;border:1px solid var(--line);font-size:9px;letter-spacing:.06em;color:var(--muted);white-space:nowrap;line-height:1.6}
.tag--gold{color:var(--gold-2);border-color:var(--line-2);background:rgba(201,162,90,.06)}
.tag--science{color:#a9dbd9;border-color:rgba(99,185,183,.35)}
.tag--culture{color:#dcc4e1;border-color:rgba(192,154,201,.35)}
.tag--war{color:#e6b0a2;border-color:rgba(207,122,99,.35)}
.tag--green{color:#bcd3a9;border-color:rgba(143,176,122,.35)}
.pill-row{display:flex;gap:6px;flex-wrap:wrap;margin:.6em 0 1.2em}
.pill{font-size:10px;padding:4px 9px;border:1px solid var(--line);color:var(--muted);background:rgba(255,255,255,.015)}
.pill b{color:var(--gold-2);font-weight:600}

/* lists */
.checklist{list-style:none;padding:0;margin:1.4em 0}
.checklist li{position:relative;padding:9px 0 9px 30px;border-top:1px solid rgba(255,255,255,.055);font-size:.9rem;color:var(--ink-2);margin:0}
.checklist li:last-child{border-bottom:1px solid rgba(255,255,255,.055)}
.checklist li::before{content:"";position:absolute;left:4px;top:15px;width:11px;height:6px;border-left:1.5px solid var(--gold);border-bottom:1.5px solid var(--gold);transform:rotate(-45deg)}
.checklist li b{color:var(--ink)}
.checklist--tight li{padding-top:6px;padding-bottom:6px}
.number-list{list-style:none;padding:0;margin:1.4em 0;counter-reset:step}
.number-list li{position:relative;padding:0 0 18px 45px;margin:0;counter-increment:step}
.number-list li::before{content:counter(step,decimal-leading-zero);position:absolute;left:0;top:2px;font-family:var(--mono);font-size:10.5px;color:var(--gold);width:28px;height:28px;border:1px solid var(--line);display:grid;place-items:center;background:rgba(201,162,90,.035)}
.number-list li::after{content:"";position:absolute;left:14px;top:33px;bottom:6px;width:1px;background:rgba(201,162,90,.12)}
.number-list li:last-child{padding-bottom:0}
.number-list li:last-child::after{display:none}
.number-list b{display:block;color:var(--ink);font-size:.96rem;margin-bottom:2px}
.number-list p{font-size:.86rem;color:var(--muted);margin:0}

/* steps compact */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;background:rgba(201,162,90,.16);border:1px solid rgba(201,162,90,.16);margin:1.6em 0}
.step{background:var(--bg-2);padding:17px 15px;position:relative}
.step .n{font-family:var(--mono);font-size:9px;color:var(--gold);letter-spacing:.1em;display:block;margin-bottom:8px}
.step b{display:block;font-size:.9rem;color:var(--ink);margin-bottom:4px}
.step small{display:block;font-size:.76rem;line-height:1.6;color:var(--muted)}
.steps.steps--3{grid-template-columns:repeat(3,minmax(0,1fr))}

/* metric rows */
.metric-list{border-top:1px solid var(--line);margin:1.5em 0}
.metric{display:grid;grid-template-columns:130px 1fr 58px;gap:14px;align-items:center;padding:10px 0;border-bottom:1px solid rgba(255,255,255,.055)}
.metric .name{font-size:.82rem;color:var(--ink-2)}
.metric .track{height:4px;background:rgba(255,255,255,.06);position:relative;overflow:hidden}
.metric .track i{position:absolute;inset:0 auto 0 0;width:var(--w);background:linear-gradient(90deg,var(--mc,var(--gold)),var(--mc,var(--gold)));opacity:.75}
.metric .val{font-family:var(--mono);font-size:.78rem;color:var(--mc,var(--gold-2));text-align:right}

/* interactive scorer */
.tool{border:1px solid var(--line-2);background:linear-gradient(165deg,rgba(201,162,90,.055),rgba(255,255,255,.012));padding:24px;margin:1.8em 0;position:relative}
.tool-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:16px;flex-wrap:wrap}
.tool-head .label{font-size:9px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:6px}
.tool-head h3{margin:0;padding:0;font-size:1.2rem}
.tool-head h3::before{display:none}
.tool-head p{margin:5px 0 0;font-size:.8rem;color:var(--muted)}
.tool-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px 18px}
.tool-option{display:flex;align-items:flex-start;gap:9px;padding:7px 0;font-size:.84rem;color:var(--ink-2);cursor:pointer;border-bottom:1px solid rgba(255,255,255,.05);line-height:1.5}
.tool-option input{appearance:none;width:15px;height:15px;border:1px solid var(--line-2);background:transparent;margin:2px 0 0;flex:0 0 auto;cursor:pointer;position:relative}
.tool-option input:checked{background:var(--gold);border-color:var(--gold-2)}
.tool-option input:checked::after{content:"";position:absolute;left:4px;top:1px;width:5px;height:9px;border-right:1.5px solid #0a0805;border-bottom:1.5px solid #0a0805;transform:rotate(45deg)}
.tool-result{display:flex;align-items:center;gap:20px;margin-top:18px;padding-top:18px;border-top:1px solid var(--line)}
.score-ring{width:82px;height:82px;flex:0 0 auto;border-radius:50%;display:grid;place-items:center;background:conic-gradient(var(--sc,var(--gold)) calc(var(--pct,0) * 1%),rgba(255,255,255,.07) 0);position:relative}
.score-ring::before{content:"";position:absolute;inset:5px;border-radius:50%;background:#0a1016}
.score-ring b{position:relative;font-family:var(--serif);font-size:1.55rem;color:var(--gold-2);line-height:1}
.score-ring small{position:relative;font-size:8px;letter-spacing:.1em;color:var(--faint);margin-top:2px}
.score-copy b{display:block;font-size:1rem;color:var(--ink);margin-bottom:2px}
.score-copy p{font-size:.82rem;color:var(--muted);margin:0;line-height:1.65}
.score-tags{display:flex;gap:4px;flex-wrap:wrap;margin-top:7px}
.score-tags span{font-size:8.5px;padding:2px 6px;border:1px solid var(--line);color:var(--muted)}

/* details */
details.acc{border:1px solid var(--line);margin:10px 0;background:rgba(255,255,255,.014)}
details.acc summary{list-style:none;cursor:pointer;padding:14px 42px 14px 16px;position:relative;font-size:.92rem;color:var(--ink);display:flex;align-items:center;gap:10px}
details.acc summary::-webkit-details-marker{display:none}
details.acc summary::after{content:"+";position:absolute;right:16px;top:50%;transform:translateY(-50%);color:var(--gold);font-family:var(--mono);font-size:15px;transition:.2s}
details.acc[open] summary::after{content:"−"}
details.acc[open] summary{border-bottom:1px solid rgba(201,162,90,.12);color:var(--gold-2)}
details.acc .acc-body{padding:14px 18px 8px;font-size:.85rem;color:var(--muted);line-height:1.75}
details.acc .acc-body p:last-child{margin-bottom:.6em}
.acc-num{font-family:var(--mono);font-size:9.5px;color:var(--faint)}

/* tabs + search */
.toolbar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:20px}
.tabs{display:flex;gap:4px;flex-wrap:wrap}
.tab{appearance:none;background:transparent;border:1px solid var(--line);color:var(--muted);padding:7px 12px;font-size:10.5px;letter-spacing:.08em;cursor:pointer;transition:.2s;display:inline-flex;align-items:center;text-decoration:none;line-height:1.5}
.tab:hover{color:var(--gold-2);border-color:var(--line-2);text-decoration:none}
.tab[aria-selected="true"]{background:rgba(201,162,90,.12);border-color:var(--gold);color:var(--gold-2)}
.search-box{position:relative;min-width:220px;flex:1;max-width:300px}
.search-box input{width:100%;background:rgba(255,255,255,.025);border:1px solid var(--line);color:var(--ink);padding:9px 12px 9px 32px;font:inherit;font-size:.82rem;outline:none;transition:.2s}
.search-box input:focus{border-color:var(--gold)}
.search-box svg{position:absolute;left:10px;top:50%;transform:translateY(-50%);width:13px;height:13px;color:var(--faint)}
.search-box input::placeholder{color:var(--faint)}
.no-results{padding:26px;text-align:center;color:var(--faint);font-size:.85rem;display:none}
.no-results.show{display:block}
tbody tr.is-hidden{display:none}

/* reference page sticky jump bar */
.guide--ref > section{scroll-margin-top:160px}
.ref-toolbar{position:sticky;top:calc(var(--header) + 10px);z-index:80;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;padding:10px 12px;margin-bottom:30px;background:rgba(7,10,15,.94);border:1px solid var(--line);backdrop-filter:blur(14px);box-shadow:0 14px 34px rgba(0,0,0,.28)}
.ref-toolbar .tabs{gap:3px}
.ref-toolbar .tab{padding:6px 10px}
.ref-toolbar .search-box{min-width:190px;max-width:250px}

/* quick reference */
.ref-block{margin-bottom:44px}
.ref-block h3{margin-top:0}
.ref-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:10px}
.ref-note{font-size:10.5px;color:var(--faint)}

/* footer */
.site-footer{border-top:1px solid rgba(201,162,90,.16);background:linear-gradient(180deg,rgba(0,0,0,.12),rgba(0,0,0,.4));padding:62px 0 28px;margin-top:20px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;margin-bottom:44px}
.footer-brand .brand{margin-bottom:16px}
.footer-brand p{font-size:.8rem;line-height:1.75;color:var(--faint);max-width:34ch}
.footer-col h4{font-family:var(--sans);font-size:9.5px;letter-spacing:.2em;text-transform:uppercase;color:var(--gold);margin-bottom:14px}
.footer-col ul{list-style:none;margin:0;padding:0}
.footer-col li{margin:0}
.footer-col a{display:block;padding:5px 0;font-size:.82rem;color:var(--muted)}
.footer-col a:hover{color:var(--gold-2);text-decoration:none}
.footer-note{font-size:.76rem;line-height:1.8;color:var(--faint)}
.footer-note b{color:var(--muted)}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:22px;border-top:1px solid rgba(255,255,255,.06);font-size:.72rem;color:var(--faint);flex-wrap:wrap}
.footer-bottom a{color:var(--muted)}
.to-top{position:fixed;right:22px;bottom:22px;width:40px;height:40px;border:1px solid var(--line-2);background:rgba(8,13,18,.9);color:var(--gold-2);display:grid;place-items:center;cursor:pointer;z-index:150;opacity:0;pointer-events:none;transition:.25s;backdrop-filter:blur(6px)}
.to-top.show{opacity:1;pointer-events:auto}
.to-top:hover{background:rgba(201,162,90,.15)}
.to-top svg{width:15px;height:15px}

/* pagination */
.pager{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:12px;margin-top:52px}
.pager a{border:1px solid var(--line);padding:18px 20px;display:flex;flex-direction:column;gap:4px;transition:.2s;background:rgba(255,255,255,.014)}
.pager a:hover{border-color:var(--line-2);background:rgba(201,162,90,.04);text-decoration:none}
.pager .dir{font-size:9px;letter-spacing:.18em;color:var(--faint);text-transform:uppercase}
.pager b{font-family:var(--serif);font-size:1.02rem;color:var(--gold-2)}
.pager .next{text-align:right;align-items:flex-end}
.pager .next b::after{content:" →"}
.pager .prev b::before{content:"← "}

/* reveal */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity .7s ease,transform .7s ease}
.js .reveal.in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none;transition:none}
  .scroll-hint::after{animation:none}
}

/* responsive */
@media (max-width:1120px){
  .nav-links a{padding:10px 8px;font-size:12px}
  .brand-text small{display:none}
  .hero-inner{gap:34px}
  .victory-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .victory-card{min-height:280px}
  .hero-chip--a{left:-8px}
  .hero-chip--b{right:-6px}
}
@media (max-width:1000px){
  .nav-links,.nav-cta{display:none}
  .menu-btn{display:flex}
  .hero{min-height:0;padding-top:calc(var(--header) + 58px)}
  .hero-inner{grid-template-columns:1fr;gap:44px}
  .hero-copy{max-width:720px}
  .hero-art{max-width:760px}
  .hero-chip--a{left:8px;bottom:60px}
  .hero-chip--b{right:8px;top:28px}
  .scroll-hint{display:none}
  .hero-meta{margin-bottom:0}
  .guide-layout{grid-template-columns:1fr;gap:0}
  .toc{display:none}
  .guide{max-width:none}
  .page-hero__grid{grid-template-columns:1fr}
  .emblem{display:none}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr}
  .footer-note{grid-column:1/-1}
  .engine-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:760px){
  body{font-size:16px;line-height:1.86}
  .container{width:calc(100% - 34px)}
  .section{padding:70px 0}
  .section--tight{padding:50px 0}
  .hero{padding-top:calc(var(--header) + 44px);padding-bottom:56px}
  .hero h1{font-size:clamp(2.5rem,9vw,3.5rem)}
  .hero-meta{gap:22px}
  .hero-meta b{font-size:1.5rem}
  .hero-chip{display:none}
  .page-hero{padding:calc(var(--header) + 46px) 0 42px}
  .page-hero::before{font-size:8rem;top:40px}
  .page-hero h1{font-size:clamp(2.1rem,8vw,3rem)}
  .guide-layout{padding:44px 0 70px}
  .guide > section{padding-bottom:46px;margin-bottom:46px}
  .victory-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .victory-card{min-height:0;padding:20px 16px}
  .grid-2,.grid-3,.grid-4{grid-template-columns:1fr}
  .mistake-list{grid-template-columns:1fr;gap:0}
  .tool-grid{grid-template-columns:1fr}
  .tool-result{align-items:flex-start}
  .steps,.steps.steps--3{grid-template-columns:1fr}
  .metric{grid-template-columns:100px 1fr 52px;gap:10px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-brand{grid-column:1/-1}
  .pager{grid-template-columns:1fr}
  .pager .next{text-align:left;align-items:flex-start}
  .hero-frame{padding:5px}
  .hero-frame-bar{font-size:8px;padding:7px 8px 2px}
  .era-rail{min-width:900px}
  .engine-grid{grid-template-columns:1fr}
  .section-head--row{gap:20px}
  .figure--scroll img{width:760px;max-width:none;min-width:0}
  table{min-width:520px}
  .ref-toolbar{position:static;display:block;padding:10px;margin-bottom:24px}
  .ref-toolbar .tabs{flex-wrap:nowrap;overflow-x:auto;width:100%;padding-bottom:3px;scrollbar-width:thin}
  .ref-toolbar .tab{flex:0 0 auto;padding:7px 11px}
  .ref-toolbar .search-box{max-width:none;width:100%;margin-top:8px}
  .guide--ref > section{scroll-margin-top:96px}
}
@media (max-width:460px){
  .hero-kicker{font-size:9px;letter-spacing:.18em}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{justify-content:center}
  .victory-grid{grid-template-columns:1fr}
  .victory-card{min-height:0}
  .hero-meta{gap:18px}
  .hero-meta div{flex:1 0 38%}
  .footer-grid{grid-template-columns:1fr}
  .tool{padding:18px 15px}
  .score-ring{width:68px;height:68px}
}