/* Design system: dark cinematic editorial layout with a warm copper accent. */
:root{--bg:#10161e;--surface:#18212a;--surface-alt:#202c35;--line:#34414a;--ink:#f3f0e8;--muted:#b2bbb8;--dim:#83929a;--accent:#f0b87c;--accent-light:#ffe0b5;--accent-dark:#b66f32;--max:1260px;--measure:70ch;--radius:18px;--shadow:0 24px 80px rgba(0,0,0,.2);font-synthesis:none;color-scheme:dark}
*,*::before,*::after{box-sizing:border-box}html{scroll-behavior:smooth;scroll-padding-top:7rem}body{margin:0;background:var(--bg);color:var(--ink);font-family:ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei",sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased}a{color:inherit;text-decoration:none}a:focus-visible,button:focus-visible,summary:focus-visible{outline:3px solid var(--accent);outline-offset:5px}img{max-width:100%;display:block}button,input,textarea{font:inherit}button{cursor:pointer}p{margin:0 0 1.25rem}h1,h2,h3{line-height:1.28;letter-spacing:-.035em;margin:0 0 1.2rem;font-weight:680}h1{font-size:clamp(2.8rem,6vw,6.6rem)}h2{font-size:clamp(1.75rem,3.6vw,3.6rem)}h3{font-size:1.28rem}.layout{width:min(var(--max),calc(100% - 88px));margin-inline:auto}.site-frame{min-height:100vh;display:flex;flex-direction:column}.site-header{z-index:50;position:relative;border-bottom:1px solid rgba(255,255,255,.09);background:rgba(16,22,30,.96)}.header-inner{min-height:91px;max-width:1390px;padding:0 44px;margin:auto;display:flex;justify-content:space-between;align-items:center;gap:3rem}.brand{display:inline-flex;align-items:center;gap:13px;flex-shrink:0}.brand-symbol{width:48px;height:48px;border:1px solid var(--accent);display:grid;place-items:center;border-radius:50%;font-size:27px;color:var(--accent);transform:rotate(-25deg)}.brand-type{display:flex;flex-direction:column;line-height:1.2}.brand-type strong{font-size:1.5rem;letter-spacing:.06em}.brand-type small{margin-top:7px;color:var(--dim);font-size:.63rem;letter-spacing:.2em}.primary-nav{display:flex;align-items:center;gap:clamp(.8rem,2.1vw,2.5rem)}.primary-nav a{color:#bec7c8;white-space:nowrap;font-size:.91rem;transition:color .2s}.primary-nav a:hover,.primary-nav a[aria-current=page]{color:var(--accent-light)}.primary-nav a[aria-current=page]::after{content:"";display:block;margin-top:3px;height:1px;background:var(--accent)}.menu-toggle{display:none}.skip-link{position:absolute;left:12px;top:-100px;z-index:100;background:#fff;color:#111;padding:.5rem 1rem}.skip-link:focus{top:12px}.eyebrow{font-family:ui-monospace,SFMono-Regular,Consolas,monospace;text-transform:uppercase;font-size:.74rem;letter-spacing:.18em;color:var(--accent);font-weight:600}.hero{min-height:720px;display:grid;grid-template-columns:1fr .84fr;align-items:stretch;gap:5rem;padding-top:76px;padding-bottom:92px}.hero-copy{display:flex;flex-direction:column;align-items:start;justify-content:center}.hero .eyebrow{display:flex;align-items:center;gap:10px}.pulse{display:inline-block;width:7px;height:7px;border-radius:50%;background:var(--accent);box-shadow:0 0 0 6px rgba(240,184,124,.1)}.hero h1{margin:32px 0 36px;white-space:nowrap;line-height:1.25}.hero h1 em{font-style:normal;color:var(--accent);font-family:serif;font-weight:400;font-size:.73em;letter-spacing:-.07em}.hero-lead{max-width:35rem;color:var(--muted);font-size:1.1rem;line-height:2.1}.hero-actions{display:flex;align-items:center;gap:30px;flex-wrap:wrap;margin-top:26px}.button{background:var(--accent);color:#1a1b1a;display:inline-flex;align-items:center;justify-content:center;padding:15px 26px;border:1px solid var(--accent);border-radius:2px;font-weight:700;font-size:.95rem;line-height:1.5;transition:transform .2s,background .2s}.button:hover{background:var(--accent-light);transform:translateY(-2px)}.button span{margin-left:15px}.button-outline{background:transparent;color:var(--accent)}.button-outline:hover{color:var(--bg)}.button-muted{background:transparent;color:var(--ink);border-color:var(--line)}.text-action{border-bottom:1px solid #67757a;padding:5px 0;font-weight:600}.text-action:hover{color:var(--accent)}.hero-index{display:flex;gap:2rem;margin-top:84px;font-family:monospace;color:var(--dim);font-size:.78rem;letter-spacing:.1em}.hero-art{position:relative;min-width:0;padding:12px 22px 36px 12px}.hero-art::before{content:"";position:absolute;inset:0 0 23px 30px;background:linear-gradient(145deg,#33414a,#191e25);border-radius:48% 48% 3px 3px;transform:rotate(4deg)}.hero-image{position:relative;height:100%;overflow:hidden;border-radius:47% 47% 3px 3px;background:radial-gradient(circle at 65% 36%,#c28b59,#493d3a 42%,#171e27 78%)}.hero-image img{width:100%;height:100%;object-fit:cover;mix-blend-mode:luminosity;opacity:.83}.hero-image:after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(13,20,26,.7),transparent 40%);pointer-events:none}.hero-caption{position:absolute;right:-10px;bottom:14px;background:#e9ded0;color:#1d272e;padding:14px 20px;display:flex;flex-direction:column;line-height:1.5;min-width:210px;box-shadow:var(--shadow)}.hero-caption strong{font-family:monospace;font-size:.7rem;letter-spacing:.1em}.hero-caption span{font-size:.83rem}.band{background:#e8e1d4;color:#1b2930;padding:65px 0}.band-inner{display:grid;grid-template-columns:.7fr 1.6fr 1.2fr;align-items:center;gap:3rem}.band .eyebrow{color:#905521}.band h2{font-size:clamp(1.5rem,2.6vw,2.75rem);margin:0}.band p:not(.eyebrow){margin:0;color:#4b5657}.band a{grid-column:3;font-size:.93rem;font-weight:700;border-bottom:1px solid currentColor;justify-self:start;margin-top:-1.4rem}.section-space{padding-top:126px;padding-bottom:125px}.section-top{display:flex;justify-content:space-between;align-items:end;gap:5rem;margin-bottom:46px}.section-top h2{max-width:760px;margin-bottom:0}.section-top>p{max-width:345px;color:var(--muted);margin:0;font-size:.97rem}.card-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:16px}.article-card{position:relative;min-height:320px;border:1px solid var(--line);padding:32px 25px 25px;display:flex;flex-direction:column;background:linear-gradient(135deg,rgba(255,255,255,.025),rgba(255,255,255,.007));transition:background .25s,border .25s,transform .25s}.article-card:hover{border-color:var(--accent-dark);background:var(--surface);transform:translateY(-4px)}.article-card h3{font-size:1.28rem;margin-bottom:18px}.article-card p:not(.card-label){font-size:.91rem;color:var(--muted);line-height:1.9}.card-label{color:var(--accent);font-size:.73rem;letter-spacing:.13em;margin-bottom:28px;font-family:monospace}.inline-link{margin-top:auto;padding-top:19px;color:var(--accent);font-size:.88rem;font-weight:650}.inline-link:hover{text-decoration:underline}.feature-split{display:grid;grid-template-columns:1fr 1fr;background:#26333c;gap:0;max-width:none;width:100%;padding:0 max(44px,calc((100vw - var(--max))/2))}.feature-image{min-height:650px;background:linear-gradient(140deg,#574d42,#15202a);overflow:hidden}.feature-image img{height:100%;width:100%;object-fit:cover;opacity:.82}.feature-copy{align-self:center;padding:70px clamp(30px,5vw,100px)}.feature-copy h2{max-width:500px}.feature-copy>p{color:#c8cfcb;line-height:2}.feature-points{margin:36px 0 42px;border-top:1px solid #58656b}.feature-points>div{border-bottom:1px solid #58656b;display:flex;gap:28px;padding:13px 0;align-items:baseline}.feature-points strong{font-family:monospace;color:var(--accent)}.feature-points span{font-size:.92rem;color:#d9d9d2}.closing-panel{margin-bottom:125px;background:linear-gradient(120deg,#28343d,#1e282f);border-left:3px solid var(--accent);padding:60px 65px;display:flex;align-items:center;justify-content:space-between;gap:3rem}.closing-panel h2{margin:0 0 15px}.closing-panel p:not(.eyebrow){max-width:620px;color:var(--muted)}.site-footer{margin-top:auto;background:#0b1016;border-top:1px solid #29343b;padding:80px 0 60px}.footer-inner{width:min(var(--max),calc(100% - 88px));margin:auto;display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:4.5rem}.footer-about strong{font-size:1.4rem;letter-spacing:.07em;display:block}.footer-about p{color:var(--dim);font-size:.87rem;max-width:290px;margin-top:17px}.footer-mark{color:var(--accent);font-size:2rem}.footer-heading{font-size:.78rem;color:var(--accent);font-family:monospace;letter-spacing:.1em;margin-bottom:22px}.footer-inner a{display:block;font-size:.88rem;color:#b2bcbf;padding:4px 0}.footer-inner a:hover{color:var(--accent)}.footer-note{font-size:.78rem;color:var(--dim)}.footer-note p:last-child{margin-top:35px}.content-page{padding-top:40px;padding-bottom:130px}.breadcrumbs{display:flex;align-items:center;gap:13px;font-size:.76rem;color:var(--dim);margin-bottom:88px}.breadcrumbs a:hover{color:var(--accent)}.breadcrumbs>span[aria-hidden]{opacity:.4}.page-intro{max-width:960px;margin-bottom:75px}.page-intro h1{font-size:clamp(2.65rem,5.1vw,5.3rem);margin-top:20px;margin-bottom:28px}.intro-text{font-size:1.1rem;color:var(--muted);line-height:2;max-width:770px}.category-list{border-top:1px solid var(--line)}.category-row{display:grid;grid-template-columns:125px minmax(0,1fr);border-bottom:1px solid var(--line);padding:53px 16px 62px;gap:25px}.category-id{color:var(--accent);font-family:monospace;font-size:1.14rem;letter-spacing:.1em}.category-body{max-width:900px;display:grid;grid-template-columns:1.2fr 1fr;column-gap:50px}.category-body h2{grid-column:1/-1;font-size:2.4rem;margin-bottom:24px}.category-body p{color:var(--muted);max-width:550px;line-height:2;margin:0}.category-body h3{grid-column:2;font-size:.95rem;color:var(--accent);margin:0 0 16px}.category-body ul{grid-column:2;grid-row:2;margin:38px 0 0;padding:0;list-style:none}.category-body li{padding:9px 0;border-bottom:1px solid rgba(255,255,255,.075);font-size:.88rem;color:#ccd1ce}.category-body li:before{content:'—';margin-right:10px;color:var(--accent)}.related-strip{margin-top:100px;border:1px solid var(--line);background:var(--surface);padding:42px 48px;display:grid;grid-template-columns:1.2fr 1fr;gap:45px;align-items:center}.related-strip h2{font-size:1.7rem;margin:0}.related-strip p:not(.eyebrow){margin:0;color:var(--muted)}.related-strip a,.essay-block p a,.faq-aside a{color:var(--accent);text-decoration:underline;text-underline-offset:4px}.prose-page{--measure:75ch}.jump-nav{position:sticky;top:0;display:flex;align-items:center;flex-wrap:wrap;gap:24px;z-index:8;background:rgba(16,22,30,.98);padding:20px 0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);margin-bottom:75px}.jump-nav a{font-size:.88rem;color:#bcc5c3}.jump-nav a:hover{color:var(--accent)}.essay-block{max-width:970px;margin:0 auto 90px;scroll-margin-top:110px}.essay-block h2{max-width:830px;font-size:clamp(2rem,3.5vw,3.35rem);margin:15px 0 30px}.essay-number{font-family:monospace;font-size:.77rem;color:var(--accent);letter-spacing:.13em}.essay-block>p{font-size:1.04rem;line-height:2.15;max-width:var(--measure);color:#c6cecb}.essay-callout{margin:30px 0 0;padding:30px 35px;border-left:2px solid var(--accent);background:#202d36;max-width:var(--measure)}.essay-callout strong{color:var(--accent)}.essay-callout p{color:#cdd0cb;margin:12px 0 0;line-height:1.95}.comparison{display:grid;grid-template-columns:repeat(3,1fr);gap:13px;margin-top:38px}.comparison>div{border:1px solid var(--line);padding:23px;background:var(--surface)}.comparison strong{color:var(--accent)}.comparison p{font-size:.85rem;color:var(--muted);margin:13px 0 0;line-height:1.9}.steps{padding:0;margin:35px 0;max-width:var(--measure);counter-reset:step;list-style:none}.steps li{counter-increment:step;padding:14px 10px 14px 55px;position:relative;border-top:1px solid var(--line);color:var(--muted)}.steps li:before{content:counter(step,decimal-leading-zero);position:absolute;left:8px;top:16px;color:var(--accent);font-family:monospace;font-size:.8rem}.faq-layout{display:grid;grid-template-columns:minmax(0,1fr) 275px;align-items:start;gap:75px}.faq-list{border-top:1px solid var(--line)}.faq-item{border-bottom:1px solid var(--line)}.faq-item summary{display:grid;grid-template-columns:45px minmax(0,1fr) 28px;gap:20px;align-items:baseline;padding:29px 5px;cursor:pointer;font-weight:600;font-size:1.17rem;list-style:none}.faq-item summary::-webkit-details-marker{display:none}.faq-number{font-size:.73rem;color:var(--accent);font-family:monospace}.faq-plus{font-size:1.5rem;color:var(--accent);transition:transform .2s}.faq-item[open] .faq-plus{transform:rotate(45deg)}.faq-answer{padding:0 48px 30px 70px;color:var(--muted);line-height:2}.faq-aside{border-top:2px solid var(--accent);padding-top:24px;position:sticky;top:25px}.faq-aside h2{font-size:1.3rem}.faq-aside p{font-size:.89rem;color:var(--muted);line-height:2}.error-state{min-height:65vh;display:flex;flex-direction:column;justify-content:center;align-items:flex-start;max-width:700px}.error-state h1{font-size:3.3rem}.error-state>p:not(.eyebrow){color:var(--muted)}.error-state .button{margin-top:15px}.error-state .button-muted{margin-top:0}

@media(max-width:1120px){.header-inner{padding:0 32px;gap:20px}.primary-nav{gap:15px}.primary-nav a{font-size:.82rem}.layout,.footer-inner{width:min(var(--max),calc(100% - 64px))}.hero{gap:2rem}.hero h1{font-size:clamp(2.8rem,5vw,5rem)}.card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}.article-card{min-height:265px}.band-inner{grid-template-columns:1fr 2fr;gap:20px}.band p:not(.eyebrow){grid-column:2}.band a{grid-column:2;margin:0}.footer-inner{gap:2rem}.feature-split{padding:0 32px}.feature-copy{padding:60px 35px}.category-body{column-gap:25px}}
@media(max-width:800px){.header-inner{min-height:74px;padding:0 24px}.brand-symbol{width:42px;height:42px}.brand-type strong{font-size:1.25rem}.brand-type small{font-size:.56rem}.menu-toggle{display:inline-flex;align-items:center;gap:10px;background:none;color:var(--ink);border:1px solid var(--line);padding:8px 12px;font-size:.85rem}.menu-icon{width:18px;height:12px;border-block:2px solid var(--accent);display:inline-block;position:relative}.menu-icon:after{content:'';position:absolute;left:0;right:0;top:4px;border-top:1px solid var(--accent)}.primary-nav{position:absolute;left:0;right:0;top:100%;display:none;flex-direction:column;align-items:stretch;gap:0;background:#17212a;box-shadow:0 24px 35px #050a0f70;padding:8px 24px 24px;border-bottom:1px solid var(--line)}.primary-nav.is-open{display:flex}.primary-nav a{padding:12px 8px;border-bottom:1px solid var(--line);font-size:1rem}.primary-nav a[aria-current=page]::after{display:none}.layout,.footer-inner{width:calc(100% - 48px)}.hero{padding:55px 0 70px;min-height:0;grid-template-columns:1fr;gap:40px}.hero h1{font-size:clamp(2.9rem,9vw,5.3rem);white-space:normal}.hero-art{height:510px;max-width:520px;width:100%;margin:auto}.hero-index{margin-top:43px}.band{padding:50px 0}.band-inner{grid-template-columns:1fr}.band p:not(.eyebrow),.band a{grid-column:1}.band a{margin:0}.section-space{padding-top:78px;padding-bottom:80px}.section-top{display:block;margin-bottom:30px}.section-top>p{margin-top:22px;max-width:660px}.feature-split{grid-template-columns:1fr;padding:0}.feature-image{min-height:400px;max-height:500px}.feature-copy{padding:60px 32px 70px}.closing-panel{padding:45px 32px;display:block;margin-bottom:75px}.closing-panel .button{margin-top:16px}.footer-inner{grid-template-columns:repeat(2,1fr)}.content-page{padding-top:24px;padding-bottom:80px}.breadcrumbs{margin-bottom:50px}.page-intro{margin-bottom:50px}.category-row{grid-template-columns:55px 1fr;gap:12px;padding:38px 0}.category-body{display:block}.category-body h2{font-size:2rem}.category-body h3{margin-top:25px}.category-body ul{margin:0}.related-strip{margin-top:60px;grid-template-columns:1fr;gap:18px;padding:30px}.essay-block{margin-bottom:65px}.jump-nav{margin-bottom:50px;gap:14px}.faq-layout{grid-template-columns:1fr;gap:45px}.faq-aside{position:static}}
@media(max-width:520px){body{font-size:15px}.layout,.footer-inner{width:calc(100% - 36px)}.header-inner{padding:0 18px}.hero h1{margin:24px 0;font-size:2.9rem}.hero h1 em{font-size:.7em}.hero-lead{font-size:.98rem}.hero-actions{gap:16px}.button{padding:12px 18px}.hero-art{height:360px;padding-right:15px}.hero-caption{right:0;min-width:175px}.hero-index{gap:12px;font-size:.67rem;flex-wrap:wrap}.band h2{font-size:1.85rem}.card-grid{grid-template-columns:1fr}.article-card{min-height:235px;padding:25px}.section-space{padding-block:65px}.feature-image{min-height:290px}.feature-copy{padding:46px 20px}.feature-points>div{gap:15px}.closing-panel{padding:36px 24px}.footer-inner{grid-template-columns:1fr;gap:25px}.site-footer{padding:50px 0}.page-intro h1{font-size:2.5rem}.intro-text{font-size:1rem}.category-row{grid-template-columns:1fr}.category-body h2{font-size:1.8rem}.category-id{margin-bottom:8px}.related-strip{padding:24px}.jump-nav{gap:8px 16px;padding-block:15px}.jump-nav a{font-size:.78rem}.essay-block h2{font-size:2rem}.essay-block>p{font-size:.98rem}.comparison{grid-template-columns:1fr}.essay-callout{padding:23px}.faq-item summary{grid-template-columns:26px 1fr 22px;gap:9px;font-size:1.05rem}.faq-answer{padding:0 10px 25px 35px}.error-state h1{font-size:2.4rem}}
@media(prefers-reduced-motion:reduce){*,*::before,*::after{scroll-behavior:auto!important;transition:none!important;animation:none!important}}
@media print{body{background:#fff;color:#111}.site-header,.site-footer,.hero-art,.jump-nav,.button{display:none!important}.layout{width:100%}.content-page{padding:0}.essay-block{break-inside:avoid}.essay-block>p{color:#222}.related-strip{border:1px solid #bbb}}

/* Additional interaction states and visual fallbacks */
@supports(backdrop-filter:blur(12px)){.site-header{backdrop-filter:blur(12px)}}
@supports(font-variation-settings:normal){.brand-type strong{font-variation-settings:"wght" 740}}
@media(hover:hover){.category-row:hover .category-id{color:var(--accent-light)}.category-row:hover h2{color:var(--accent-light)}.footer-inner a:hover{text-decoration:underline;text-underline-offset:4px}.jump-nav a:hover{text-decoration:underline;text-underline-offset:6px}.breadcrumbs a:hover{text-decoration:underline;text-underline-offset:4px}.related-strip a:hover{color:var(--accent-light)}.article-card:focus-within{border-color:var(--accent)}}
@media(hover:none){.button{min-height:46px}.primary-nav a{min-height:44px}.jump-nav a{min-height:38px;display:inline-flex;align-items:center}.faq-item summary{min-height:76px}}
@media(min-width:1500px){.hero{min-height:790px}.hero-art{max-height:730px}.section-space{padding-block:150px}.feature-image{min-height:700px}.content-page{padding-bottom:160px}}
@media(min-width:801px) and (max-width:1000px){.hero{grid-template-columns:1.1fr .9fr}.hero h1{font-size:4rem}.hero-index{gap:1rem}.hero-art{padding-right:5px}.header-inner{flex-wrap:wrap;padding-block:16px}.primary-nav{width:100%;justify-content:space-between}.feature-copy{padding:50px 25px}.feature-points span{font-size:.83rem}}
@media(min-width:521px) and (max-width:800px){.hero-art{height:460px}.hero-copy{max-width:700px}.card-grid{gap:13px}.article-card{min-height:290px}.feature-image{min-height:430px}.feature-copy{max-width:750px;margin:auto}.footer-inner{row-gap:45px}.faq-list{max-width:800px}}
@media(max-width:360px){.brand-symbol{width:36px;height:36px;font-size:22px}.brand-type small{letter-spacing:.05em}.brand-type strong{font-size:1.1rem}.header-inner{gap:8px}.menu-toggle{gap:6px;padding:7px}.hero h1{font-size:2.5rem}.hero-index{font-size:.61rem}.hero-art{height:300px}.page-intro h1{font-size:2.2rem}.closing-panel h2{font-size:1.8rem}}

/* Searchable reference articles: editorial two-column lexicon */
.lexicon-intro{display:flex;justify-content:space-between;align-items:center;gap:40px;background:#1a2730;border-top:1px solid var(--accent-dark);padding:30px 38px;margin-bottom:50px}
.lexicon-intro>p{max-width:700px;color:var(--muted);margin:0}.lexicon-count{display:flex;flex-direction:column;align-items:center;flex-shrink:0}.lexicon-count strong{font-size:3rem;line-height:1;color:var(--accent);font-family:Georgia,serif;font-weight:400}.lexicon-count span{font-size:.76rem;color:var(--dim);margin-top:12px;white-space:nowrap}
.lexicon-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}.lexicon-entry{padding:38px;border:1px solid var(--line);background:linear-gradient(160deg,#1b2730,#161d25);display:flex;flex-direction:column;scroll-margin-top:30px}.lexicon-entry h2{font-size:1.85rem;margin-top:10px}.lexicon-entry>p:not(.eyebrow){color:#c3cbc8;line-height:2.05;font-size:.94rem}.lexicon-entry .eyebrow{font-size:.69rem}.lexicon-practice{margin-top:auto;border-top:1px solid #46545a;padding-top:20px}.lexicon-practice strong{color:var(--accent);font-size:.77rem;letter-spacing:.08em}.lexicon-practice p{color:var(--muted);font-size:.88rem;line-height:1.9;margin:10px 0 0}
@media(max-width:800px){.lexicon-entry{padding:28px}.lexicon-grid{gap:15px}.lexicon-intro{padding:25px;gap:25px}}
@media(max-width:600px){.lexicon-grid{grid-template-columns:1fr}.lexicon-intro{display:block}.lexicon-count{flex-direction:row;gap:14px;justify-content:flex-start;margin-top:25px}.lexicon-count span{margin:0}.lexicon-entry h2{font-size:1.65rem}}