@import url('https://fonts.googleapis.com/css2?family=Cinzel:wght@500;600;700&family=Noto+Serif+SC:wght@500;600;700&display=swap');
*{box-sizing:border-box;margin:0;padding:0}
:root{
  --bg:#FBF8F2;--bg-alt:#F2EDE4;--ink:#201B16;--ink-soft:#5A5249;--muted:#877D70;
  --accent:#B98928;--accent-soft:#D6B05A;--accent-glow:#F0D28A;--card:#fffdf8;--line:rgba(48,38,24,.12);
  --feature:#100D0A;--on-feature:#F8F0E2;--on-feature-soft:#C9BDAA;--radius:18px;--radius-lg:28px;
  --shadow:0 18px 50px rgba(45,35,20,.12);--serif-cn:'Noto Serif SC','Songti SC','STSong',serif;--serif-en:'Cinzel',Georgia,serif;
}
body{font-family:-apple-system,BlinkMacSystemFont,'Segoe UI','PingFang SC','Microsoft YaHei',sans-serif;background:var(--bg);color:var(--ink);line-height:1.75;overflow-x:hidden}
body[data-theme="dark"]{--bg:#0E0C0A;--bg-alt:#17130F;--ink:#F8F0E2;--ink-soft:#C9BDAA;--muted:#8E806E;--card:#1B1712;--line:rgba(214,176,90,.18);--shadow:0 20px 60px rgba(0,0,0,.36)}
a{text-decoration:none;color:inherit}img{max-width:100%;display:block}.container{width:min(1180px,calc(100% - 48px));margin:0 auto}
.section{padding:88px 0}.section-alt{background:var(--bg-alt)}.eyebrow{font-family:var(--serif-en);font-size:13px;letter-spacing:.22em;text-transform:uppercase;color:var(--accent);margin-bottom:14px}
.section-title{font-family:var(--serif-cn);font-size:clamp(32px,4.3vw,58px);line-height:1.16;color:var(--ink);margin-bottom:18px}.section-lead{font-size:18px;color:var(--ink-soft);max-width:760px}
.btn{display:inline-flex;align-items:center;justify-content:center;min-height:52px;padding:0 26px;border-radius:999px;font-size:15px;font-weight:700;border:1.5px solid transparent;transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease}
.btn-primary{background:linear-gradient(135deg,var(--accent),var(--accent-soft));color:#1A1612;box-shadow:0 8px 22px rgba(180,140,60,.24)}.btn-primary:hover{transform:translateY(-2px);box-shadow:0 16px 34px rgba(180,140,60,.32)}
.btn-ghost{border-color:rgba(185,137,40,.55);color:var(--ink);background:transparent}.btn-ghost:hover{background:rgba(185,137,40,.12);border-color:var(--accent)}
header{position:fixed;top:0;left:0;right:0;z-index:50;background:rgba(251,248,242,.84);backdrop-filter:blur(18px);border-bottom:1px solid transparent;transition:background .25s ease,border-color .25s ease}body[data-theme="dark"] header{background:rgba(14,12,10,.82)}header.scrolled{border-color:var(--line);box-shadow:0 12px 32px rgba(0,0,0,.06)}
.nav-inner{height:82px;display:flex;align-items:center;justify-content:space-between;gap:22px}.brand{display:flex;align-items:center;gap:16px;min-width:0}.brand-logo{width:48px;height:48px;object-fit:contain}.brand-text .en{font-family:var(--serif-en);font-size:24px;font-weight:700;color:var(--accent);letter-spacing:.08em;white-space:nowrap}.brand-text .cn{display:block;font-size:10px;letter-spacing:.28em;color:var(--muted);margin-top:1px}
.nav-links{display:flex;align-items:center;gap:22px;list-style:none}.nav-links a{font-size:14px;color:var(--ink-soft);transition:color .2s ease}.nav-links a:hover,.nav-links a.active{color:var(--accent)}.nav-right{display:flex;align-items:center;gap:12px}.theme-toggle{height:42px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--ink);display:flex;align-items:center;gap:8px;cursor:pointer}.theme-toggle .dot{width:14px;height:14px;border-radius:50%;background:var(--accent)}.nav-cta{padding:11px 18px;border-radius:999px;background:var(--ink);color:var(--bg);font-size:13px;font-weight:700}
.nav-toggle{display:none;width:44px;height:44px;border:0;background:transparent;position:relative}.nav-toggle span,.nav-toggle::before,.nav-toggle::after{content:"";position:absolute;left:9px;right:9px;height:2px;background:var(--ink);transition:.25s}.nav-toggle span{top:21px}.nav-toggle::before{top:13px}.nav-toggle::after{top:29px}.nav-toggle.open span{opacity:0}.nav-toggle.open::before{top:21px;transform:rotate(45deg)}.nav-toggle.open::after{top:21px;transform:rotate(-45deg)}.mobile-nav-actions{display:none}
.blog-hero{padding-top:142px;padding-bottom:78px;background:radial-gradient(ellipse at 82% 10%,rgba(185,137,40,.16),transparent 44%),linear-gradient(180deg,var(--bg),var(--bg-alt));border-bottom:1px solid var(--line)}
.blog-hero-grid{display:grid;grid-template-columns:minmax(0,1.1fr) minmax(320px,.9fr);gap:44px;align-items:end}.blog-kicker{display:flex;align-items:center;gap:18px;font-family:var(--serif-en);letter-spacing:.26em;text-transform:uppercase;color:var(--accent);font-size:13px;margin-bottom:28px}.blog-kicker::before{content:"";width:68px;height:1px;background:var(--accent)}
.blog-hero h1{font-family:var(--serif-cn);font-size:clamp(46px,5.8vw,84px);line-height:1.06;letter-spacing:.01em}.blog-hero h1 span{color:var(--accent)}.blog-hero p{font-size:19px;color:var(--ink-soft);max-width:760px;margin-top:24px}.hero-card{background:var(--feature);color:var(--on-feature);border-radius:var(--radius-lg);padding:30px;box-shadow:var(--shadow);overflow:hidden;position:relative}.hero-card::after{content:"BLOG";position:absolute;right:-16px;bottom:-10px;font-family:var(--serif-en);font-size:86px;color:var(--accent);opacity:.08;letter-spacing:.04em}.hero-card h2{position:relative;z-index:1;font-family:var(--serif-cn);font-size:30px;line-height:1.28;margin:14px 0;color:#fff}.hero-card p{position:relative;z-index:1;margin:0;color:var(--on-feature-soft);font-size:15px}.hero-card .label{position:relative;z-index:1;font-family:var(--serif-en);letter-spacing:.18em;color:var(--accent-glow);font-size:12px;text-transform:uppercase}.hero-card .btn{position:relative;z-index:1;margin-top:22px}
.article-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}.article-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;display:flex;flex-direction:column;min-height:100%;box-shadow:0 10px 30px rgba(45,35,20,.06);transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease}.article-card:hover{transform:translateY(-4px);border-color:rgba(185,137,40,.44);box-shadow:var(--shadow)}.article-card.featured{grid-column:span 2}.article-card img{width:100%;height:230px;object-fit:cover}.article-card.featured img{height:300px}.article-body{padding:24px;display:flex;flex-direction:column;flex:1}.article-meta{display:flex;flex-wrap:wrap;gap:8px 12px;font-family:var(--serif-en);font-size:12px;letter-spacing:.12em;color:var(--accent);text-transform:uppercase}.article-card h2,.article-card h3{font-family:var(--serif-cn);font-size:24px;line-height:1.34;margin:12px 0;color:var(--ink)}.article-card.featured h2{font-size:34px}.article-card p{color:var(--ink-soft);font-size:15px}.article-body .read-more{margin-top:auto;padding-top:22px;color:var(--accent);font-weight:800;font-size:14px}
.cluster-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}.cluster{padding:24px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line)}.cluster .tag{font-family:var(--serif-en);font-size:12px;letter-spacing:.16em;color:var(--accent);text-transform:uppercase}.cluster h3{font-family:var(--serif-cn);font-size:22px;margin:8px 0}.cluster p{font-size:14px;color:var(--ink-soft)}
.article-hero{padding-top:136px;background:linear-gradient(180deg,var(--bg),var(--bg-alt));border-bottom:1px solid var(--line)}.article-hero-inner{display:grid;grid-template-columns:minmax(0,1fr) minmax(300px,460px);gap:44px;align-items:end}.breadcrumbs{font-size:14px;color:var(--muted);margin-bottom:24px}.breadcrumbs a{color:var(--accent);font-weight:700}.article-hero h1{font-family:var(--serif-cn);font-size:clamp(38px,5vw,66px);line-height:1.14;margin-bottom:20px}.article-summary{font-size:19px;color:var(--ink-soft);max-width:760px}.article-hero-img{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);background:var(--card);border:1px solid var(--line)}.article-hero-img img{width:100%;height:420px;object-fit:cover}.article-info{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px}.article-info span{padding:8px 12px;border-radius:999px;background:rgba(185,137,40,.10);border:1px solid rgba(185,137,40,.24);font-size:13px;color:var(--ink-soft)}
.article-layout{display:grid;grid-template-columns:minmax(0,760px) minmax(280px,1fr);gap:54px;align-items:start}.article-content{font-size:17px;color:var(--ink-soft)}.article-content h2{font-family:var(--serif-cn);font-size:30px;line-height:1.28;color:var(--ink);margin:46px 0 16px}.article-content h3{font-family:var(--serif-cn);font-size:23px;color:var(--ink);margin:28px 0 10px}.article-content p{margin:0 0 18px}.article-content ul{margin:0 0 20px 22px}.article-content li{margin-bottom:8px}.article-content strong{color:var(--ink)}.article-content .note{padding:24px;border-radius:var(--radius);background:rgba(185,137,40,.08);border:1px solid rgba(185,137,40,.22);color:var(--ink-soft);margin:28px 0}.article-content .qa{padding:24px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line);margin:22px 0}.article-content .qa h2,.article-content .qa h3{margin-top:0}
.toc{position:sticky;top:110px;background:var(--feature);color:var(--on-feature);border-radius:var(--radius);padding:24px}.toc h2{font-family:var(--serif-cn);font-size:22px;margin-bottom:12px}.toc p{color:var(--on-feature-soft);font-size:14px}.toc ul{list-style:none;margin-top:16px;display:grid;gap:10px}.toc a{color:var(--on-feature-soft);font-size:14px}.toc a:hover{color:var(--accent-glow)}.toc .cta{margin-top:22px;display:grid;gap:10px}.toc .btn-ghost{color:var(--on-feature);border-color:rgba(240,210,138,.45)}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:18px}.related-card{padding:22px;border-radius:var(--radius);background:var(--card);border:1px solid var(--line)}.related-card .tag{font-family:var(--serif-en);font-size:12px;letter-spacing:.14em;color:var(--accent);text-transform:uppercase}.related-card h3{font-family:var(--serif-cn);font-size:20px;line-height:1.38;margin-top:8px}.cta-band{display:grid;grid-template-columns:1fr auto;gap:24px;align-items:center;padding:34px;border-radius:var(--radius-lg);background:var(--feature);color:var(--on-feature)}.cta-band h2{font-family:var(--serif-cn);font-size:30px}.cta-band p{color:var(--on-feature-soft);margin-top:4px}.cta-band .btn-ghost{color:var(--on-feature);border-color:rgba(240,210,138,.45)}
footer{background:#080706;color:#928675;padding:28px 0}.foot-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;font-size:13px}.foot-brand{display:flex;align-items:center;gap:10px;color:var(--accent-glow);font-family:var(--serif-en);letter-spacing:.08em}
.mobile-contact-bar{display:none;position:fixed;left:14px;right:14px;bottom:14px;z-index:60;grid-template-columns:1fr 1fr 1fr;gap:8px;padding:10px;border-radius:24px;background:rgba(20,17,14,.92);border:1px solid rgba(214,176,90,.28);backdrop-filter:blur(18px);box-shadow:0 12px 30px rgba(0,0,0,.25)}.mobile-contact-bar button,.mobile-contact-bar a{height:54px;border-radius:999px;border:1px solid rgba(255,255,255,.16);background:transparent;color:#fff;display:flex;align-items:center;justify-content:center;gap:8px;font-size:14px}.mobile-contact-bar .primary{background:linear-gradient(135deg,var(--accent),var(--accent-soft));color:#1A1612;border:0}
.modal-mask{position:fixed;inset:0;z-index:100;background:rgba(0,0,0,.66);display:none;align-items:center;justify-content:center;padding:20px}.modal-mask.open{display:flex}.modal-card{width:min(520px,100%);max-height:92vh;overflow:auto;background:var(--feature);color:var(--on-feature);border:1px solid rgba(240,210,138,.30);border-radius:28px;padding:34px;position:relative;box-shadow:0 24px 70px rgba(0,0,0,.45)}.modal-close{position:absolute;top:18px;right:18px;width:36px;height:36px;border-radius:50%;border:1px solid rgba(255,255,255,.18);background:transparent;color:var(--on-feature);display:grid;place-items:center;cursor:pointer}.modal-eyebrow{font-family:var(--serif-en);font-size:12px;letter-spacing:.22em;color:var(--accent-glow);text-transform:uppercase}.modal-title{font-family:var(--serif-cn);font-size:30px;margin:8px 0}.modal-sub{color:var(--on-feature-soft);font-size:15px}.modal-qr{margin:22px auto 18px;padding:10px;background:#fff;border-radius:18px;max-width:340px}.modal-qr img{width:100%;border-radius:10px}.modal-actions{display:grid;grid-template-columns:1fr;gap:12px}.modal-action{min-height:50px;border-radius:999px;border:1px solid rgba(255,255,255,.22);background:transparent;color:var(--on-feature);display:flex;align-items:center;justify-content:center;gap:10px;font-size:15px;cursor:pointer}.modal-foot{text-align:center;margin-top:14px;color:var(--accent-glow);font-size:13px}
.reveal{opacity:1;transform:none}.reveal.in{opacity:1;transform:none}.delay-1,.delay-2,.delay-3{transition-delay:0s}
@media(max-width:980px){.container{width:min(100% - 32px,1180px)}.section{padding:72px 0}.blog-hero-grid,.article-hero-inner,.article-layout,.cta-band{grid-template-columns:1fr}.article-grid,.cluster-grid,.related-grid{grid-template-columns:1fr 1fr}.article-card.featured{grid-column:span 2}.toc{position:static}.nav-links{position:fixed;top:82px;left:0;right:0;background:var(--bg);border-bottom:1px solid var(--line);display:none;flex-direction:column;align-items:stretch;padding:18px 24px 28px}.nav-links a{display:block;padding:11px 0}.menu-open .nav-links{display:flex}.nav-toggle{display:block}.nav-cta{display:none}.mobile-nav-actions{display:grid;grid-template-columns:1fr 1fr;gap:10px}.mobile-nav-actions button,.mobile-nav-actions a{height:46px;border-radius:999px;border:1px solid var(--line);background:transparent;color:var(--ink);display:flex;align-items:center;justify-content:center}.mobile-nav-actions .primary{background:var(--ink);color:var(--bg)}}
@media(max-width:640px){body{padding-bottom:94px}.brand-text .en{font-size:22px}.brand-text .cn{display:none}.blog-hero h1{font-size:42px}.article-hero h1{font-size:36px}.article-summary,.blog-hero p{font-size:17px}.article-grid,.cluster-grid,.related-grid{grid-template-columns:1fr}.article-card.featured{grid-column:span 1}.article-card.featured img,.article-card img,.article-hero-img img{height:230px}.article-card.featured h2{font-size:26px}.article-content{font-size:16px}.article-content h2{font-size:26px}.foot-inner{flex-direction:column;text-align:center}.mobile-contact-bar{display:grid}.modal-card{padding:30px 20px}}