/* Greythorn — site styles v3 (serif-led, full-bleed, restrained). Static prototype. */
:root{
  --paper:#FBFBF9; --paper-2:#F1F1EE; --ink:#151515; --ink-2:#3B3C3F;
  --grey:#6E7075; --grey-2:#A0A2A5; --rule:#DCDCD8; --charcoal:#151515;
  --accent:#8C3B2F; --accent-soft:#C9806F;
  --serif:"Newsreader","GT Noto Serif SC",Georgia,"Songti SC",serif;
  --serif-zh:"GT Noto Serif SC","Newsreader","Songti SC",serif;
  --sans:"Inter","Helvetica Neue",Arial,"PingFang SC",sans-serif;
  --wrap:1240px; --gutter:clamp(20px,4.5vw,64px); --radius:6px;
}
/* ---- @JaydenWei visibility switch ----
   To hide every @JaydenWei link site-wide, change "inline" to "none" below,
   or delete the blocks marked <!-- JAYDEN-X:START --> ... <!-- JAYDEN-X:END --> in the HTML. */
.jayden-x{display:inline}

*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{margin:0;background:var(--paper);color:var(--ink);font-family:var(--serif);font-size:18px;line-height:1.6;font-weight:400;-webkit-font-smoothing:antialiased;font-optical-sizing:auto}
a{color:inherit;text-decoration-color:var(--grey-2);text-decoration-thickness:1px;text-underline-offset:4px}
a:hover{color:var(--accent);text-decoration-color:currentColor}
img,svg{display:block;max-width:100%}
.wrap{max-width:var(--wrap);margin:0 auto;padding:0 var(--gutter)}

/* bilingual */
html[data-lang="en"] .l-zh, html[data-lang="zh"] .l-en{display:none !important}
html[data-lang="zh"] body{font-family:var(--serif-zh);font-size:17px;line-height:1.8}
html[data-lang="zh"] h1, html[data-lang="zh"] h2, html[data-lang="zh"] h3, html[data-lang="zh"] .positioning{font-family:var(--serif-zh);letter-spacing:.02em}

/* header: wordmark | divider | serif links */
.site-header{position:sticky;top:0;z-index:30;background:rgba(251,251,249,.94);backdrop-filter:blur(10px);border-bottom:1px solid var(--rule)}
.site-header.over{position:absolute;left:0;right:0;background:transparent;border-bottom-color:transparent;backdrop-filter:none}
.bar{display:flex;align-items:center;height:84px;padding:0 var(--gutter);max-width:1600px;margin:0 auto}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink)}
.brand .mark{width:15px;height:25px}
.brand .word{font-family:"Newsreader",serif;font-weight:450;font-size:19px;letter-spacing:.3em}
.brand:hover{color:inherit}
.divider{width:1px;height:34px;background:var(--ink);opacity:.35;margin:0 30px 0 26px}
.nav{display:flex;align-items:center;gap:34px;font-size:18px}
.nav a{text-decoration:none;color:var(--ink);padding:4px 0;border-bottom:1px solid transparent;transition:border-color .25s}
.nav a:hover{color:var(--ink);border-bottom-color:var(--ink)}
.nav a[aria-current="page"]{border-bottom-color:var(--ink)}
.header-right{margin-left:auto;display:flex;align-items:center;gap:22px}
.lang-toggle{display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--grey-2)}
.lang-toggle button{all:unset;cursor:pointer;color:var(--grey);padding:2px 0;border-bottom:1px solid transparent}
.lang-toggle button[aria-pressed="true"]{color:var(--ink);border-bottom-color:var(--ink)}
.menu-btn{all:unset;display:none;cursor:pointer;font-size:16px;color:var(--ink)}

/* type */
.eyebrow,.kicker{font-family:var(--sans);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--grey);margin:0 0 22px}
html[data-lang="zh"] .eyebrow, html[data-lang="zh"] .kicker{letter-spacing:.12em;font-family:var(--sans)}
h1,h2,h3{font-family:var(--serif);font-weight:400;color:var(--ink);margin:0}
h1{font-size:clamp(40px,5vw,64px);line-height:1.1;letter-spacing:-.01em}
h2{font-size:clamp(30px,3.2vw,44px);line-height:1.18;letter-spacing:-.005em}
h3{font-size:24px;line-height:1.3}
.lede{font-size:clamp(19px,1.6vw,22px);line-height:1.55;color:var(--ink-2);max-width:36em}
.muted{color:var(--grey)} .small{font-size:15px}
.text-link{display:inline-flex;gap:10px;align-items:center;font-size:18px;text-decoration:none;border-bottom:1px solid var(--ink);padding-bottom:3px;color:var(--ink)}
.text-link:hover{color:var(--accent);border-color:var(--accent)}
.text-link.light{color:#F2F1ED;border-color:#F2F1ED}
.text-link.light:hover{color:var(--accent-soft);border-color:var(--accent-soft)}
section{padding:clamp(80px,10vw,140px) 0}

/* hero: full-bleed generated art, drawing-in motion */
.hero{position:relative;min-height:max(640px,94vh);display:flex;align-items:flex-end;overflow:hidden;padding:0;background:#E7E7E3}
.hero-art{position:absolute;inset:0;width:100%;height:100%}
.hero-inner{position:relative;width:100%;padding-bottom:clamp(64px,10vh,120px)}
.hero .positioning{font-size:clamp(42px,6vw,88px);line-height:1.04;letter-spacing:-.018em;max-width:13em;margin:0;font-weight:400}
html[data-lang="zh"] .hero .positioning{line-height:1.25;max-width:12em;font-size:clamp(36px,5.2vw,74px)}
.hero .positioning em{font-style:italic;color:var(--accent)}
html[data-lang="zh"] .hero .positioning em{font-style:normal}
.hero .sub{margin:32px 0 0;max-width:32em;font-size:clamp(18px,1.5vw,21px);color:var(--ink-2)}
.hero-art .draw path{stroke-dasharray:1;stroke-dashoffset:1;animation:draw 2.6s cubic-bezier(.6,.1,.2,1) forwards}
.hero-art .draw path:nth-child(2){animation-delay:.9s}.hero-art .draw path:nth-child(3){animation-delay:1.15s}
.hero-art .draw path:nth-child(4){animation-delay:1.4s}.hero-art .draw path:nth-child(5){animation-delay:1.65s}
.hero-art .accent{opacity:0;animation:fade 1.2s ease 2.4s forwards}
.hero-art .guides{opacity:0;animation:fade 1.6s ease .1s forwards}
.hero-inner > *{opacity:0;transform:translateY(14px);animation:rise 1s cubic-bezier(.2,.7,.2,1) forwards}
.hero-inner > *:nth-child(2){animation-delay:.15s}.hero-inner > *:nth-child(3){animation-delay:.3s}
@keyframes draw{to{stroke-dashoffset:0}} @keyframes fade{to{opacity:1}} @keyframes rise{to{opacity:1;transform:none}}
@media (prefers-reduced-motion: reduce){
  .hero-art .draw path{animation:none;stroke-dashoffset:0}.hero-art .accent,.hero-art .guides,.hero-inner > *{animation:none;opacity:1;transform:none}
}

/* centred statement */
.statement{text-align:center;border-bottom:1px solid var(--rule)}
.statement p{font-size:clamp(26px,2.8vw,38px);line-height:1.35;max-width:24em;margin:0 auto 40px;color:var(--ink)}

/* principles */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(24px,4vw,64px)}
.grid-3 > *{border-top:1px solid var(--ink);padding-top:26px}
.num{font-family:var(--sans);font-size:12px;color:var(--accent);letter-spacing:.14em;display:block;margin-bottom:26px}
.grid-3 p{color:var(--ink-2);margin:14px 0 0;font-size:17px}

/* full-bleed art band */
.full-art{position:relative;overflow:hidden;background:#1B1C1E;color:#E9E8E4;padding:clamp(110px,14vw,200px) 0}
.full-art .bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.full-art .wrap{position:relative}
.full-art h2{color:#F4F3EF;max-width:14em;font-size:clamp(34px,4.2vw,58px);line-height:1.12}
.full-art .eyebrow{color:#A6A8AC}
.focus-compact{display:flex;flex-wrap:wrap;gap:10px 12px;margin:44px 0 48px;padding:0;list-style:none;max-width:44em}
.focus-compact li{border:1px solid rgba(255,255,255,.28);padding:7px 16px;font-size:16px;border-radius:999px;color:#E2E1DD}

/* cards (rounded art panels with captions beneath) */
.section-head{display:flex;justify-content:space-between;align-items:end;gap:24px;flex-wrap:wrap;margin-bottom:44px}
.art{width:100%;height:100%;object-fit:cover;border-radius:var(--radius);transition:transform .8s cubic-bezier(.2,.7,.2,1)}
.media{display:block;overflow:hidden;border-radius:var(--radius);aspect-ratio:16/10;background:var(--paper-2);position:relative}
.card .media:hover .art, .feature-card:hover .art{transform:scale(1.025)}
.card .kicker{margin:22px 0 10px}
.card h3{font-size:23px;line-height:1.3}
.card h3 a{text-decoration:none}
.card h3 a:hover{text-decoration:underline}
.card p{color:var(--ink-2);margin:12px 0 0;font-size:17px}
.card .meta{font-family:var(--sans);font-size:13px;color:var(--grey);display:flex;flex-wrap:wrap;gap:4px 10px;align-items:center}
.card-row{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(20px,2.4vw,32px);margin-top:clamp(40px,5vw,64px)}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(40px,4vw,56px) clamp(20px,2.4vw,32px)}
.feature-card{display:grid;grid-template-columns:7fr 5fr;gap:clamp(28px,4vw,64px);align-items:center}
.feature-card .media{aspect-ratio:16/10}
.feature-card .badge{position:absolute;left:18px;top:18px;font-family:var(--sans);font-size:11.5px;letter-spacing:.16em;text-transform:uppercase;background:var(--paper);color:var(--accent);padding:7px 12px;border-radius:999px}
.feature-card h3{font-size:clamp(26px,2.6vw,36px);line-height:1.2}
.feature-card p{color:var(--ink-2)}
.feature-card .meta{font-family:var(--sans);font-size:14px;color:var(--grey)}
.share{display:inline-flex;align-items:center;gap:6px;font-family:var(--sans);font-size:13px;color:var(--grey);text-decoration:none}
.share:hover{color:var(--accent)}
.xicon{width:11px;height:11px;fill:currentColor;display:inline-block}

/* page heads (inner pages): full-bleed generated art */
.page-head{position:relative;overflow:hidden;padding:clamp(110px,12vw,170px) 0 clamp(70px,8vw,110px);background:#E4E4E1}
.page-head .bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.page-head .wrap{position:relative}
.page-head h1{max-width:13em}
.page-head .lede{margin-top:26px}

/* research list */
.toolbar{display:flex;flex-wrap:wrap;justify-content:space-between;align-items:end;gap:20px;margin:clamp(80px,9vw,120px) 0 28px}
.toolbar p{margin:8px 0 0}
.filters{display:flex;flex-wrap:wrap;gap:8px}
.filters button{all:unset;cursor:pointer;font-family:var(--sans);font-size:13px;padding:8px 15px;border:1px solid var(--rule);border-radius:999px;color:var(--ink-2)}
.filters button[aria-pressed="true"]{border-color:var(--ink);background:var(--ink);color:var(--paper)}
.report-list{list-style:none;margin:0;padding:0;border-top:1px solid var(--ink)}
.report{display:grid;grid-template-columns:150px 1fr 210px;gap:20px 44px;padding:32px 0;border-bottom:1px solid var(--rule)}
.report .date{font-family:var(--sans);font-size:13px;color:var(--grey);font-variant-numeric:tabular-nums;padding-top:6px}
.report .theme{display:block;font-size:11.5px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);margin-top:6px}
.report h3{font-size:24px;line-height:1.3}
.report h3 a{text-decoration:none}
.report h3 a:hover{text-decoration:underline}
.report .orig{font-family:var(--sans);font-size:13px;color:var(--grey);margin:10px 0 0}
.report .links{display:flex;flex-direction:column;gap:7px;font-family:var(--sans);font-size:14px;align-items:flex-start;padding-top:6px}
.report .links a{text-decoration:none;color:var(--ink-2)}
.report .links a:hover{color:var(--accent)}
.report[hidden]{display:none}
.archive-note{font-family:var(--sans);font-size:13.5px;color:var(--grey);max-width:56em;margin-top:32px;line-height:1.7}

/* about / contact */
.split{display:grid;grid-template-columns:4fr 8fr;gap:clamp(32px,6vw,96px);align-items:start}
.split .side h2{position:sticky;top:120px}
.focus-list{display:grid;grid-template-columns:1fr;border-top:1px solid var(--ink)}
.focus-list article{padding:34px 0;border-bottom:1px solid var(--rule)}
.focus-list .tag{font-family:var(--sans);font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--grey)}
.focus-list h3{margin-top:10px;font-size:28px}
.focus-list p{color:var(--ink-2);margin:12px 0 0;max-width:36em}
.contact-card{border-top:1px solid var(--ink);padding-top:30px}
.contact-card dl{display:grid;grid-template-columns:170px 1fr;gap:22px 24px;margin:0}
.contact-card dt{font-family:var(--sans);font-size:12px;letter-spacing:.16em;text-transform:uppercase;color:var(--grey);padding-top:8px}
.contact-card dd{margin:0;font-size:26px}

/* footer: black, small columns, dense legal */
.site-footer{background:var(--charcoal);color:#BDBCB8;font-size:15px;padding:80px 0 44px}
.site-footer a{color:#EDECE8;text-decoration:none}
.site-footer a:hover{color:var(--accent-soft)}
.footer-top{display:grid;grid-template-columns:1fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px;border-bottom:1px solid #333436}
.footer-top h4{margin:0 0 16px;font-size:16px;font-weight:500;color:#F2F1ED}
.footer-top ul{list-style:none;margin:0;padding:0;display:grid;gap:8px}
.footer-brand{justify-self:end;text-align:right}
.footer-brand .brand{justify-content:flex-end}
.footer-brand p{margin:14px 0 0;color:#8E9094;font-size:14px}
.legal{padding-top:34px}
.legal p{margin:0;columns:2 340px;column-gap:56px;color:#9A9BA0;font-size:13.5px;line-height:1.7}
.legal strong{color:#DAD9D5;font-weight:500}
.copyright{margin-top:36px;color:#77797D;font-size:13px;display:flex;justify-content:space-between;flex-wrap:wrap;gap:12px}

/* responsive */
@media (max-width: 1080px){
  .nav{gap:24px;font-size:17px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .report{grid-template-columns:120px 1fr}
  .report .links{grid-column:2;flex-direction:row;flex-wrap:wrap;gap:8px 20px}
  .footer-top{grid-template-columns:1fr 1fr 1fr}
  .footer-brand{grid-column:1/-1;justify-self:start;text-align:left;order:-1}
  .footer-brand .brand{justify-content:flex-start}
}
@media (max-width: 820px){
  .bar{height:68px}
  .divider{display:none}
  .nav{display:none;position:absolute;top:68px;left:0;right:0;flex-direction:column;align-items:stretch;gap:0;background:var(--paper);border-bottom:1px solid var(--rule);padding:4px var(--gutter) 18px}
  .nav a{padding:14px 0;font-size:20px;border-bottom:1px solid var(--rule)}
  .nav.open{display:flex}
  .menu-btn{display:inline-block}
  .brand .word{font-size:16px;letter-spacing:.26em}
  .hero{min-height:max(600px,92vh)}
  .hero-art{opacity:.6}
  html[data-lang="zh"] .hero .positioning{font-size:40px}
  .grid-3,.card-row,.card-grid,.feature-card,.split{grid-template-columns:1fr}
  .split .side h2{position:static}
  .report{grid-template-columns:1fr;gap:10px;padding:26px 0}
  .report .links{grid-column:1}
  .report .date{padding-top:0}
  .contact-card dl{grid-template-columns:1fr;gap:4px}
  .contact-card dd{margin-bottom:20px;font-size:21px;word-break:break-word}
  .footer-top{grid-template-columns:1fr 1fr}
  .statement{text-align:left}
}
@media print{.site-header,.lang-toggle,.hero-art{display:none}}
.positioning .nb{white-space:nowrap}