:root{
  --ink:#101c17;
  --ink2:#1b2b24;
  --paper:#f3efe4;
  --paper2:#e9e2d1;
  --orange:#c85a2a;
  --olive:#6f7a3a;
  --line:#cfc7b4;
  --muted:#5f6b62;
  --mono:"SFMono-Regular",ui-monospace,Menlo,Consolas,monospace;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--ink);
  color:var(--paper);
  font-family:"PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  line-height:1.7;
}
.wrap{max-width:1180px;margin:0 auto;padding:0 28px}
a{color:inherit;text-decoration:none}

/* ===== header ===== */
.sitehead{
  background:var(--ink);
  border-bottom:1px solid var(--ink2);
  position:sticky;top:0;z-index:50;
}
.sitehead .inner{display:flex;align-items:center;gap:22px;padding:18px 28px;max-width:1180px;margin:0 auto}
.brand{display:flex;align-items:center;gap:12px;font-weight:700;font-size:19px;letter-spacing:1px}
.brand img{height:34px;width:34px;border-radius:8px;object-fit:cover}
.brand .en{font-family:var(--mono);font-size:11px;color:var(--olive);letter-spacing:2px;display:block;font-weight:400}
.brand .cn{display:block;line-height:1.05}
.nav{display:flex;gap:4px;margin-left:auto;flex-wrap:wrap}
.nav a{padding:8px 13px;font-size:14px;color:#cfd6cf;border-radius:6px}
.nav a:hover,.nav a.on{color:var(--paper);background:var(--ink2)}

/* mobile menu */
.menubtn{display:none;margin-left:auto;background:none;border:1px solid var(--ink2);color:var(--paper);font-size:14px;padding:7px 13px;border-radius:6px;cursor:pointer;font-family:inherit}
@media(max-width:860px){
  .nav{display:none;position:absolute;top:100%;left:0;right:0;background:var(--ink2);flex-direction:column;padding:10px 20px 18px;gap:2px;border-bottom:1px solid #2b3b32}
  .nav.open{display:flex}
  .nav a{padding:11px 6px;font-size:15px}
  .menubtn{display:block}
  .sitehead{position:relative}
}

/* ===== footer ===== */
.sitefoot{border-top:1px solid var(--ink2);margin-top:80px;background:var(--ink)}
.sitefoot .cols{display:grid;grid-template-columns:1.6fr 1fr 1fr;gap:34px;padding:46px 28px 26px;max-width:1180px;margin:0 auto}
.sitefoot h4{font-size:13px;color:var(--olive);letter-spacing:1px;margin-bottom:12px;font-weight:700}
.sitefoot p,.sitefoot li{font-size:13px;color:#b6bdb6;line-height:1.9}
.sitefoot ul{list-style:none}
.sitefoot a:hover{color:var(--paper)}
.footbar{border-top:1px solid var(--ink2);padding:18px 28px;text-align:center;font-size:12px;color:#8b958c}
@media(max-width:760px){.sitefoot .cols{grid-template-columns:1fr}}

/* ===== home hero ===== */
.hero{position:relative;border-bottom:1px solid var(--ink2)}
.hero .stage{max-width:1180px;margin:0 auto;padding:54px 28px 34px;display:grid;grid-template-columns:1.35fr 1fr;gap:34px;align-items:center}
.hero h1{font-size:40px;line-height:1.15;font-weight:800;letter-spacing:.5px;margin-bottom:18px}
.hero h1 em{font-style:normal;color:var(--orange)}
.hero .lede{color:#c9d0c9;font-size:16px;max-width:54ch}
.hero .lede b{color:var(--paper);font-weight:600}
.heroimg{border-radius:14px;overflow:hidden;box-shadow:0 20px 50px rgba(0,0,0,.4)}
.heroimg img{width:100%;height:280px;object-fit:cover;display:block}
.kicker{font-family:var(--mono);font-size:12px;color:var(--orange);letter-spacing:2px;text-transform:uppercase;margin-bottom:10px}
@media(max-width:860px){.hero .stage{grid-template-columns:1fr}.hero h1{font-size:30px}}

/* ===== metrics strip ===== */
.metrics{border-bottom:1px solid var(--ink2)}
.metrics .row{max-width:1180px;margin:0 auto;display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--ink2);padding:26px 28px}
.metric{background:var(--ink);padding:6px 10px}
.metric .n{font-family:var(--mono);font-size:26px;font-weight:700;color:var(--orange);line-height:1}
.metric .l{font-size:12px;color:#9aa39a;margin-top:6px;letter-spacing:1px}
@media(max-width:700px){.metrics .row{grid-template-columns:repeat(2,1fr);gap:18px}}

/* ===== magazine ===== */
.mag{max-width:1180px;margin:0 auto;padding:54px 28px 0}
.mag .grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:26px;align-items:start}
.card{background:var(--paper);color:var(--ink);border-radius:12px;overflow:hidden;box-shadow:0 12px 30px rgba(0,0,0,.25)}
.card .imgwrap img{width:100%;height:190px;object-fit:cover;display:block}
.card.feature .imgwrap img{height:280px}
.card .body{padding:20px}
.card .tag{font-family:var(--mono);font-size:11px;color:var(--orange);letter-spacing:1px;text-transform:uppercase}
.card h3{font-size:19px;line-height:1.35;margin:8px 0}
.card p{font-size:14px;color:#4a534c}
.card.feature h3{font-size:24px}
.card.feature .body{padding:24px}
@media(max-width:900px){.mag .grid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.mag .grid{grid-template-columns:1fr}}

/* ===== section title ===== */
.secthead{display:flex;align-items:baseline;justify-content:space-between;border-bottom:1px solid var(--ink2);padding-bottom:12px;margin:56px 0 22px}
.secthead h2{font-size:24px;font-weight:800;letter-spacing:.5px}
.secthead .more{font-family:var(--mono);font-size:12px;color:var(--orange);letter-spacing:1px}
.secthead .more:hover{color:var(--paper)}

/* ===== archive list ===== */
.archive{max-width:1180px;margin:0 auto;padding:0 28px 10px}
.listrow{display:grid;grid-template-columns:180px 1fr;gap:22px;padding:22px 0;border-bottom:1px solid var(--ink2);align-items:center}
.listrow .th{font-family:var(--mono);font-size:12px;color:var(--olive);letter-spacing:1px}
.listrow h3{font-size:19px;margin-bottom:6px}
.listrow h3 a:hover{color:var(--orange)}
.listrow .desc{font-size:14px;color:#aeb6ae;max-width:70ch}
@media(max-width:640px){.listrow{grid-template-columns:1fr}}

/* ===== article ===== */
.article-body{max-width:1180px;margin:0 auto;padding:50px 28px 0;display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:44px}
.article-main{min-width:0}
.breadcrumb{font-family:var(--mono);font-size:12px;color:var(--olive);letter-spacing:1px;margin-bottom:14px}
.breadcrumb a:hover{color:var(--paper)}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px}
.breadcrumb li+li::before{content:"/";margin-right:6px;color:#4a5a50}
.article-head h1{font-size:34px;line-height:1.2;font-weight:800;margin-bottom:14px}
.article-head .meta{font-size:13px;color:#9aa39a;display:flex;gap:16px;flex-wrap:wrap}
.article-head .meta b{color:var(--paper);font-weight:500}
.article-hero{width:100%;border-radius:12px;overflow:hidden;margin:26px 0}
.article-hero img{width:100%;height:300px;object-fit:cover;display:block}
.article-body .prose{color:#e3e7e0;font-size:16px;margin-top:8px}
.prose p{margin:0 0 18px}
.prose h2{font-size:23px;font-weight:800;margin:34px 0 14px;color:var(--paper);padding-left:12px;border-left:4px solid var(--orange)}
.prose h3{font-size:18px;margin:24px 0 10px;color:var(--paper)}
.prose ul{margin:0 0 18px;padding-left:22px}
.prose ul li{margin-bottom:8px}
.prose table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14px}
.prose th,.prose td{border:1px solid var(--ink2);padding:10px 12px;text-align:left}
.prose th{background:var(--ink2);color:var(--paper);font-family:var(--mono);font-size:13px}
.prose td{color:#cdd3cc}
.inline{width:100%;border-radius:10px;overflow:hidden;margin:24px 0}
.inline img{width:100%;height:230px;object-fit:cover;display:block}
.prose blockquote{border-left:3px solid var(--olive);padding:6px 18px;color:#aeb6ae;margin:22px 0;font-style:italic}
.split{display:grid;grid-template-columns:1fr 1fr;gap:22px;margin:26px 0}
.split figure img{width:100%;height:200px;object-fit:cover;border-radius:10px;display:block}
.split figcaption{font-size:12px;color:#8b958c;margin-top:6px;font-family:var(--mono)}
.callout{background:var(--ink2);border-left:4px solid var(--orange);padding:18px 22px;border-radius:8px;margin:24px 0;font-size:15px}
.callout b{color:var(--paper)}
@media(max-width:880px){.article-body{grid-template-columns:1fr}}

/* ===== related / issue rail ===== */
.rail{border-left:1px solid var(--ink2);padding-left:26px}
.rail h4{font-family:var(--mono);font-size:12px;color:var(--olive);letter-spacing:1px;margin-bottom:16px;text-transform:uppercase}
.rail ul{list-style:none}
.rail li{margin-bottom:16px;padding-bottom:14px;border-bottom:1px solid var(--ink2)}
.rail li a{font-size:14px;line-height:1.5}
.rail li a:hover{color:var(--orange)}
.rail .rn{font-family:var(--mono);font-size:11px;color:var(--orange);display:block;margin-bottom:3px}
@media(max-width:880px){.rail{border-left:0;padding-left:0;margin-top:40px}}

/* ===== category page ===== */
.cathead{max-width:1180px;margin:0 auto;padding:56px 28px 0}
.cathead h1{font-size:32px;font-weight:800}
.cathead p{color:#aeb6ae;max-width:64ch;margin-top:10px}
.catgrid{max-width:1180px;margin:0 auto;padding:30px 28px 0;display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.catgrid .card .imgwrap img{height:170px}
@media(max-width:900px){.catgrid{grid-template-columns:1fr 1fr}}
@media(max-width:640px){.catgrid{grid-template-columns:1fr}}

/* ===== note strip / flow / quote ===== */
.notestrip{max-width:1180px;margin:0 auto;padding:26px 28px 0}
.notestrip .box{border:1px solid var(--ink2);border-left:4px solid var(--olive);border-radius:8px;padding:18px 22px;font-size:14px;color:#b8c0b8;background:#16241d}
.notestrip .box b{color:var(--paper)}
.flow{max-width:1180px;margin:0 auto;padding:0 28px}
.flow ol{list-style:none;counter-reset:fl;display:grid;grid-template-columns:repeat(4,1fr);gap:20px;margin-top:22px}
.flow li{counter-increment:fl;border-top:2px solid var(--orange);padding-top:12px;font-size:14px;color:#b8c0b8}
.flow li::before{content:"0" counter(fl);display:block;font-family:var(--mono);font-size:12px;color:var(--orange);margin-bottom:6px}
.flow li b{display:block;color:var(--paper);font-size:15px;margin-bottom:4px}
@media(max-width:780px){.flow ol{grid-template-columns:1fr 1fr}}
.quoteband{max-width:1180px;margin:0 auto;padding:0 28px}
.quoteband blockquote{border-left:4px solid var(--olive);padding:8px 24px;font-size:20px;line-height:1.6;color:var(--paper);font-weight:600}
.quoteband cite{display:block;font-size:13px;color:#9aa39a;font-style:normal;margin-top:10px;font-family:var(--mono)}

/* ===== misc ===== */
.center{text-align:center}
.banner-tag{max-width:1180px;margin:0 auto;padding:10px 28px}
.tipt{font-size:13px;color:var(--olive);font-family:var(--mono);letter-spacing:.5px}

.reveal{opacity:0;transform:translateY(14px);transition:opacity .6s ease,transform .6s ease}
.reveal.in{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){.reveal{opacity:1;transform:none;transition:none}}