/* roulang page: index */
:root{
  --bg:#171512;
  --bg2:#211E1A;
  --card:#1C1A16;
  --line:rgba(255,255,255,0.08);
  --text:#F0EAE1;
  --muted:#ABA296;
  --weak:#7D746C;
  --brand:#DCA04F;
  --brand-hover:#EFBE77;
  --accent:#C55D4A;
  --radius-card:13px;
  --radius-btn:8px;
  --shadow:0 2px 12px rgba(0,0,0,0.35);
  --section-y:clamp(72px,10vw,120px);
  --font-main:system-ui,-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans CJK SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--bg);color:var(--text);font-family:var(--font-main);line-height:1.8;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button,input{font-family:inherit;font-size:inherit;color:inherit}
.container{max-width:1240px;margin-left:auto;margin-right:auto;padding-left:clamp(16px,3vw,36px);padding-right:clamp(16px,3vw,36px)}
.section{padding-top:var(--section-y);padding-bottom:var(--section-y)}
.section--tight{padding-top:calc(var(--section-y) * .7);padding-bottom:calc(var(--section-y) * .7)}
::selection{background:var(--brand);color:#201807}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand-hover);outline-offset:3px;border-radius:4px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(23,21,18,0.72);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;min-height:82px;gap:28px;position:relative}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:1.28rem;font-weight:700;letter-spacing:.02em;color:var(--text);white-space:nowrap}
.brand-mark{width:28px;height:28px;color:var(--brand);flex:none}
.brand:hover{color:var(--brand-hover)}
.brand .dot{color:var(--brand)}
.site-nav{display:flex;align-items:center;gap:clamp(18px,2.6vw,34px);margin-left:12px}
.site-nav a{position:relative;font-size:.9375rem;letter-spacing:.03em;color:var(--muted);padding:8px 0;line-height:1.4}
.site-nav a:hover{color:var(--text)}
.site-nav a.active{color:var(--text);font-weight:600}
.site-nav a.active::before{content:"";display:inline-block;width:5px;height:5px;border-radius:99px;background:var(--brand);margin-right:7px;vertical-align:2px}
.header-cta{margin-left:auto;border-left:1px solid var(--line);padding-left:22px;display:flex;align-items:center;min-height:40px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;font-size:.9375rem;font-weight:600;line-height:1.1;border-radius:var(--radius-btn);padding:.9em 1.35em;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;cursor:pointer;border:1px solid transparent;min-height:48px}
.btn svg{width:16px;height:16px}
.btn--primary{background:var(--brand);color:#211803}
.btn--primary:hover{background:var(--brand-hover);color:#1a1306;transform:translateY(-1px)}
.btn--ghost{background:transparent;color:var(--text);border-color:rgba(255,255,255,.24)}
.btn--ghost:hover{border-color:var(--brand);color:var(--brand-hover);transform:translateY(-1px)}
.btn--small{min-height:40px;padding:.65em 1.1em;font-size:.875rem}
.nav-switch{display:none;margin-left:auto;width:42px;height:42px;align-items:center;justify-content:center;background:transparent;border:1px solid var(--line);border-radius:10px;cursor:pointer;color:var(--text)}
.nav-switch:hover{border-color:var(--brand)}
.nav-switch .burger-line{display:block;width:18px;height:1.5px;background:currentColor;margin:4px auto;transition:transform .25s ease,opacity .25s ease}

/* ---------- hero ---------- */
.hero-block{position:relative;display:flex;align-items:flex-end;min-height:max(92vh,680px);padding:148px 0 74px;background-image:url("/assets/images/backpic/back-1.webp");background-position:center 26%;background-size:cover;background-repeat:no-repeat;overflow:hidden}
.hero-block::before{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(23,21,18,.96) 0%,rgba(23,21,18,.72) 45%,rgba(23,21,18,.16) 100%)}
.hero-block::after{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(23,21,18,.88) 0%,rgba(23,21,18,0) 38%)}
.hero-copy{position:relative;z-index:2;max-width:820px}
.hero-kicker{display:inline-flex;align-items:center;gap:8px;font-size:.8125rem;letter-spacing:.24em;text-transform:uppercase;color:var(--brand);margin-bottom:26px}
.hero-kicker i{position:relative;width:34px;height:1px;background:var(--brand);overflow:visible}
.hero-kicker i:after{content:"";position:absolute;width:7px;height:1px;background:var(--brand);right:0;top:-3px;box-shadow:0 6px 0 var(--brand)}
.hero-block h1{font-size:clamp(2.6rem,4vw + 1rem,4.6rem);line-height:1.15;font-weight:500;letter-spacing:-.02em;max-width:760px;margin:0 0 22px;color:#fff;text-shadow:0 2px 24px rgba(0,0,0,.35)}
.hero-block h1 em{font-style:normal;color:var(--brand)}
.hero-block h1 strong{font-weight:600}
.hero-sub{font-size:1.075rem;line-height:1.9;color:#DDD4C8;max-width:600px;margin:0 0 32px}
.hero-actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;margin-bottom:46px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px 24px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);color:var(--muted);font-size:.875rem}
.hero-meta span+span{margin-left:-10px}
.hero-meta span{position:relative;padding-left:0}
.hero-meta span+span::before{content:"";position:absolute;left:-14px;top:50%;width:1px;height:14px;background:rgba(255,255,255,.16);transform:translateY(-50%)}
.hero-meta b{color:var(--text);font-weight:500}

/* ---------- shelf ---------- */
.shelf-block{background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-title-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:34px}
.section-title-row h2{font-size:clamp(1.6rem,2vw,2.4rem);font-weight:600;line-height:1.35;margin:10px 0 0;letter-spacing:-.01em}
.section-title-row p.section-note{margin:0;color:var(--weak);font-size:.875rem;max-width:460px;text-align:right}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:.8125rem;font-weight:500;letter-spacing:.06em}
.eyebrow .eyebrow-index{font-size:.7rem;letter-spacing:0;color:var(--accent)}
.text-link{display:inline-flex;align-items:center;gap:5px;color:var(--brand);font-size:.875rem;letter-spacing:.02em}
.text-link:hover{color:var(--brand-hover);gap:9px}
.x-shelf{position:relative}
.shelf-track{display:flex;gap:18px;overflow-x:auto;scroll-snap-type:x mandatory;scrollbar-width:none;padding:4px 2px 18px}
.shelf-track::-webkit-scrollbar{display:none}
.shelf-card{flex:0 0 clamp(280px,28vw,360px);min-width:280px;scroll-snap-align:start;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:transform .3s ease,border-color .3s ease;box-shadow:0 1px 0 rgba(255,255,255,.03) inset,var(--shadow)}
.shelf-card:hover{border-color:rgba(220,160,79,.45);transform:translateY(-4px)}
.shelf-media{position:relative;aspect-ratio:16/10;overflow:hidden;background:linear-gradient(135deg,#2d2a26 0%,#1d1b18 100%)}
.shelf-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.shelf-card:hover .shelf-media img{transform:scale(1.04) translateY(-1.5%)}
.shelf-card figcaption{padding:20px 20px 22px}
.card-kicker{display:block;font-size:.75rem;color:var(--strong?);color:var(--brand);letter-spacing:.12em;margin-bottom:8px}
.shelf-card h3{margin:0;font-size:1.18rem;font-weight:600;line-height:1.35}
.shelf-card h3 a:hover{color:var(--brand-hover)}
.shelf-card p{margin:10px 0 16px;font-size:.875rem;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.corner{position:absolute;top:14px;right:14px;padding:4px 10px;font-size:.6875rem;line-height:1;background:var(--accent);color:#fff;border-radius:99px;letter-spacing:.1em;box-shadow:0 2px 10px rgba(197,93,74,.4)}
.corner.corner--gold{background:var(--brand);color:#211803}

/* ---------- hotspots ---------- */
.hot-lead,.mini-card{position:relative;border-radius:var(--radius-card);background:var(--card);border:1px solid var(--line);overflow:hidden;box-shadow:0 1px 0 rgba(255,255,255,.03) inset,var(--shadow)}
.hot-grid{display:grid;grid-template-columns:minmax(0,2fr) minmax(0,1fr);grid-template-areas:"lead side";gap:20px}
.hot-lead{grid-area:lead;min-height:480px;display:flex;align-items:flex-end;background-image:url("/assets/images/backpic/back-2.webp");background-size:cover;background-position:center top}
.hot-lead::before{content:"";position:absolute;inset:0;background:linear-gradient(0deg,rgba(17,15,13,.96) 0%,rgba(17,15,13,.24) 58%,rgba(17,15,13,.05) 100%)}
.hot-lead-content{position:relative;z-index:2;padding:34px 32px 30px}
.hot-lead h3{font-size:clamp(1.35rem,2vw,1.85rem);margin:12px 0 10px;line-height:1.35}
.hot-lead p{max-width:560px;color:#E3DBD0;color:#DAD1C6;line-height:1.85;margin:0 0 22px}
.hot-side{grid-area:side;display:flex;flex-direction:column;gap:20px}
.mini-card{display:flex;flex-direction:column;min-height:230px;padding:26px 26px 22px;border:1px solid var(--line);transition:transform .25s ease,border-color .25s ease}
.mini-card:nth-child(1){flex:1.08;background:linear-gradient(130deg,#28231E 0%,#1C1A16 70%)}
.mini-card:nth-child(2){flex:1;background:linear-gradient(130deg,#272019 0%,#1C1A16 72%)}
.mini-card:hover{border-color:rgba(220,160,79,.45);transform:translateY(-3px)}
.mini-card h3{font-size:1.18rem;line-height:1.4;margin:14px 0 8px}
.mini-card p{margin:0 0 18px;color:var(--muted);font-size:.875rem;line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.mini-card .text-link{margin-top:auto;font-weight:500}
.tags{display:flex;gap:8px;flex-wrap:wrap}
.tag{display:inline-flex;align-items:center;gap:6px;font-size:.72rem;padding:4px 10px;border-radius:99px;border:1px solid rgba(255,255,255,.14);color:var(--text);background:rgba(0,0,0,.2)}
.tag--gold{border-color:rgba(220,160,79,.42);color:var(--brand)}
.tag--new{border-color:rgba(197,93,74,.5);color:#e59080}
.arrow{display:inline-flex;width:20px;height:20px;border-radius:50%;background:var(--brand);color:#211803;align-items:center;justify-content:center;flex:none}

/* ---------- curated zone --------- */
.zone{max-width:1200px;margin:0 auto 44px}
.zone:last-child{margin-bottom:0}
.zone-head{display:flex;align-items:center;justify-content:space-between;gap:16px;border-bottom:1px solid rgba(255,255,255,.08);padding-bottom:14px;margin-bottom:24px}
.zone-head h3{font-size:1.25rem;font-weight:600;margin:4px 0 0}
.zone-head p{margin:0;color:var(--weak);font-size:.85rem}
.zone-tag{display:inline-flex;padding:3px 9px;border-radius:4px;background:rgba(220,160,79,.13);color:var(--brand);font-size:.7rem;letter-spacing:.08em;margin-right:8px}
.zone-grid.g1{display:grid;grid-template-columns:1.15fr .85fr;gap:20px}
.zone-grid.g2{display:grid;grid-template-columns:.85fr 1.15fr .9fr;gap:20px}
.theme-card{position:relative;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;min-height:260px;transition:transform .3s ease,border-color .3s ease}
.theme-card:hover{border-color:rgba(220,160,79,.45);transform:translateY(-5px)}
.theme-card .theme-media{width:100%;height:215px;overflow:hidden;background:#262219}
.theme-card .theme-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.theme-card:hover .theme-media img{transform:scale(1.03)}
.theme-card .theme-body{padding:22px 24px 24px}
.theme-card h4{margin:10px 0 8px;font-size:1.15rem;line-height:1.4}
.theme-card p{margin:0 0 14px;font-size:.875rem;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.theme-card .theme-date{font-size:.76rem;color:var(--weak);letter-spacing:.05em;margin-bottom:12px}
.theme-card--wide .theme-media{height:100%;min-height:300px;position:absolute;inset:0;width:100%}
.theme-card--wide .theme-body{position:relative;z-index:1;display:flex;flex-direction:column;justify-content:flex-end;min-height:330px;background:linear-gradient(0deg,rgba(20,18,16,.96) 0%,rgba(20,18,16,.28) 70%,rgba(20,18,16,0) 100%)}
.theme-card--wide h4{font-size:clamp(1.3rem,1.6vw,1.9rem)}
.theme-card--wide p{color:#E0D9CF;line-height:1.88;display:block;-webkit-line-clamp:unset}
.theme-card--tall .theme-media{height:100%;position:absolute;inset:0}
.theme-card--tall .theme-body{min-height:300px;justify-content:flex-end;background:linear-gradient(0deg,rgba(20,18,16,.95),rgba(20,18,16,.55) 60%,rgba(20,18,16,.02))}

/* ---------- cta + faq ---------- */
.cta-section{position:relative;overflow:hidden;background:var(--bg2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.cta-section::before{content:"";position:absolute;inset:0;background-image:url("/assets/images/backpic/back-3.webp");background-position:center 62%;background-size:cover;opacity:.16}
.cta-section .container{position:relative;z-index:1}
.cta-band{display:grid;grid-template-columns:1.2fr .8fr;gap:56px;align-items:center;padding:clamp(40px,7vw,76px) 0 30px}
.cta-copy h2{font-size:clamp(1.7rem,2.1vw,2.5rem);line-height:1.28;max-width:600px;margin:12px 0 18px}
.cta-copy p{color:#E5DED3;max-width:520px;margin:0;font-size:1rem;line-height:1.9}
.subscribe-box{background:rgba(28,26,22,.86);-webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:32px}
.subscribe-box h3{font-size:1.2rem;margin:0 0 16px}
.subscribe-form{display:flex;gap:10px;margin-top:10px}
.subscribe-field{width:100%;background:transparent;border:0;border-bottom:1px solid rgba(255,255,255,.22);padding:12px 2px;color:#fff;font-size:1rem;border-radius:0}
.subscribe-field:focus{border-bottom-color:var(--brand);outline:0}
.subscribe-form .btn{flex:none}
.form-hint{font-size:.75rem;color:var(--weak);margin-top:14px}
.cta-feedback{margin-top:12px;color:var(--brand-hover);font-size:.875rem}
.faq-panel{padding-bottom:clamp(40px,6vw,72px);padding-top:14px}
.faq-title{margin-bottom:18px;letter-spacing:.04em}
details.faq-item{border-bottom:1px solid rgba(255,255,255,.08)}
details.faq-item summary{list-style:none;display:flex;align-items:center;gap:16px;padding:20px 6px;cursor:pointer;color:#E9E2D9;font-size:1rem;letter-spacing:.02em;transition:color .2s}
details.faq-item summary::-webkit-details-marker{display:none}
details.faq-item summary .faq-no{color:var(--brand);font-weight:400;font-size:.82rem;min-width:2ch}
details.faq-item summary::after{content:"+";margin-left:auto;color:var(--muted);font-size:1.15rem;transition:transform .2s}
details.faq-item[open] summary{color:var(--brand-hover)}
details.faq-item[open] summary::after{content:"−";transform:rotate(0);color:var(--brand)}
.faq-answer{padding:0 42px 22px 42px;color:var(--muted);font-size:.9375rem;max-width:1040px}
.faq-answer p{margin-bottom:12px}
.faq-answer p:last-child{margin-bottom:0}

/* ---------- cms news ---------- */
.news-block{background:var(--bg)}
.news-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.news-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px 24px 22px;display:flex;flex-direction:column;transition:transform .25s,border-color .25s}
.news-item:hover{border-color:rgba(220,160,79,.42);transform:translateY(-3px)}
.news-meta{display:flex;align-items:center;gap:8px;flex-wrap:wrap;margin-bottom:14px}
.chip{padding:5px 9px;font-size:.7rem;color:var(--brand);border:1px solid rgba(220,160,79,.3);background:rgba(220,160,79,.08);border-radius:99px;line-height:1}
.news-time{font-size:.78rem;color:var(--weak);letter-spacing:.05em}
.news-item h3{margin:0;font-size:1.12rem;line-height:1.45;font-weight:600}
.news-item h3 a:hover{color:var(--brand-hover)}
.news-item .news-summary{margin:12px 0 18px;font-size:.875rem;line-height:1.75;color:var(--muted);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-more{margin-top:auto;align-self:flex-start}
.empty-state{border:1px dashed rgba(220,160,79,.35);border-radius:14px;min-height:180px;display:flex;align-items:center;justify-content:center;color:var(--weak);font-size:.9375rem;letter-spacing:.04em;background:rgba(28,26,22,.45)}

/* ---------- footer ---------- */
.site-footer{position:relative}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.16),transparent)}
.site-footer{padding-top:64px;padding-bottom:34px;background:var(--bg)}
.footer-top{display:grid;grid-template-columns:1fr 1.2fr .7fr 1fr;gap:44px;padding-bottom:46px}
.footer-brand h3{font-size:1.25rem;letter-spacing:.02em;margin:0 0 20px;display:flex;align-items:center;gap:8px;color:var(--text)}
.footer-brand p{color:var(--weak);font-size:.875rem;line-height:2;max-width:260px}
.footer-col h4{color:var(--text);font-size:.875rem;letter-spacing:.1em;margin:2px 0 18px}
.footer-col ul{margin:0;padding:0;list-style:none}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--weak);font-size:.875rem}
.footer-col a:hover{color:var(--brand-hover)}
.footer-contact{font-size:.875rem;color:var(--weak);line-height:2}
.footer-bottom{border-top:1px solid rgba(255,255,255,.07);padding-top:24px;display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:.75rem;color:#6e665f;letter-spacing:.03em}
.footer-bottom .copyright{white-space:nowrap}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .hot-grid{grid-template-columns:1fr;grid-template-areas:"lead" "side"}
  .hot-side{flex-direction:row}
  .mini-card{min-height:0;height:auto}
  .zone-grid.g1,.zone-grid.g2{grid-template-columns:1fr 1fr}
  .theme-card--wide .theme-body,.theme-card--tall .theme-body{min-height:260px}
  .theme-card--tall .theme-media,.theme-card--wide .theme-media{position:static;height:200px}
  .theme-card--wide .theme-body,.theme-card--tall .theme-body{background:var(--card);min-height:0}
  .theme-card--wide .theme-media,.theme-card--tall .theme-media{width:100%}
  .footer-top{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  .header-inner{min-height:70px}
  .brand{font-size:1.16rem}
  .site-nav{position:absolute;top:calc(100% - 2px);left:0;right:0;display:flex;flex-direction:column;align-items:flex-start;background:rgba(25,23,20,.97);padding:20px 24px 28px;gap:8px;border-bottom:1px solid var(--line);visibility:hidden;opacity:0;transform:translateY(-8px);transition:opacity .2s,transform .2s,visibility .2s;-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px)}
  .site-nav.open{visibility:visible;opacity:1;transform:none}
  .site-nav a{padding:12px 0;font-size:1.02rem;display:inline-block}
  .nav-switch{display:flex}
  .header-cta{display:none}
  .hero-block{min-height:78vh;padding-top:100px}
  .hero-actions .btn{min-height:46px}
  .news-list{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;gap:32px;padding-top:50px}
  .subscribe-form{flex-direction:column}.subscribe-form .btn{width:100%}
  .faq-answer{padding-left:20px;padding-right:0}
  .footer-top{grid-template-columns:1fr}
}
@media (max-width:640px){
  .hero-block{align-items:flex-end;min-height:auto;padding-top:96px;padding-bottom:56px}
  .hero-block h1{font-size:clamp(2rem,9vw,2.6rem)}
  .hero-sub{font-size:1rem}
  .hero-actions .btn{flex:1 0 100%;justify-content:center}
  .hero-meta{flex-direction:column;align-items:flex-start;gap:10px}
  .hero-meta span+span::before{display:none}
  .section-title-row{flex-direction:column;align-items:flex-start}
  .section-title-row p{text-align:left;max-width:100%}
  .zone-grid.g1,.zone-grid.g2{grid-template-columns:1fr}
  .faq-item summary{font-size:.925rem}
  .subscribe-form .btn{min-height:48px}
  .footer-bottom{flex-direction:column}
}
@media (prefers-reduced-motion:reduce){
  *{scroll-behavior:auto!important;transition:none!important;animation:none!important}
}

.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* roulang page: category1 */
:root {
        --bg-page: #171512;
        --bg-surface: #211E1A;
        --bg-card: #1C1A16;
        --bg-card-hover: #242019;
        --line: rgba(255, 255, 255, 0.08);
        --line-strong: rgba(255, 255, 255, 0.14);
        --text-main: #F0EAE1;
        --text-sub: #ABA296;
        --text-muted: #7D746C;
        --accent: #DCA04F;
        --accent-hover: #EFBE77;
        --accent-ink: #211A10;
        --alert: #C55D4A;
        --r-md: 14px;
        --r-sm: 8px;
        --shadow: 0 2px 12px rgba(0, 0, 0, 0.35);
        --section-space: clamp(72px, 9vw, 116px);
        --font-main: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    }

    *,
    *::before,
    *::after {
        box-sizing: border-box;
    }

    html {
        scroll-behavior: smooth;
        -webkit-text-size-adjust: 100%;
    }

    body {
        margin: 0;
        background: var(--bg-page);
        color: var(--text-main);
        font-family: var(--font-main);
        line-height: 1.8;
        -webkit-font-smoothing: antialiased;
        -moz-osx-font-smoothing: grayscale;
    }

    body.no-scroll {
        overflow: hidden;
    }

    a {
        color: inherit;
        text-decoration: none;
        transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease, opacity 0.2s ease;
    }

    img {
        display: block;
        max-width: 100%;
        height: auto;
    }

    button,
    input,
    select,
    textarea {
        font-family: inherit;
        font-size: inherit;
    }

    button {
        cursor: pointer;
        border: 0;
        background: none;
    }

    ul,
    ol {
        list-style: none;
        margin: 0;
        padding: 0;
    }

    h1,
    h2,
    h3,
    h4,
    p {
        margin: 0;
    }

    .visually-hidden {
        position: absolute !important;
        width: 1px;
        height: 1px;
        padding: 0;
        margin: -1px;
        overflow: hidden;
        clip: rect(0, 0, 0, 0);
        white-space: nowrap;
        border: 0;
    }

    .container {
        width: min(1200px, 100% - 48px);
        margin-inline: auto;
    }

    .eyebrow {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        font-size: 0.875rem;
        letter-spacing: 0.18em;
        color: var(--accent);
        text-transform: uppercase;
        font-weight: 500;
    }

    .eyebrow::before {
        content: "";
        width: 22px;
        height: 1px;
        background: var(--accent);
        opacity: 0.7;
    }

    .section {
        padding-top: var(--section-space);
        padding-bottom: var(--section-space);
    }

    .section-head {
        max-width: 780px;
        margin-bottom: clamp(38px, 5vw, 60px);
    }

    .section-head h2 {
        font-size: clamp(1.6rem, 2vw + 1rem, 2.4rem);
        line-height: 1.28;
        font-weight: 600;
        letter-spacing: -0.02em;
        margin-top: 16px;
        margin-bottom: 18px;
    }

    .section-head p {
        color: var(--text-sub);
        font-size: 1rem;
        max-width: 640px;
    }

    .btn {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        gap: 10px;
        min-height: 48px;
        padding: 0 26px;
        border-radius: var(--r-sm);
        font-size: 0.9375rem;
        font-weight: 500;
        letter-spacing: 0.02em;
        text-align: center;
        border: 1px solid transparent;
        transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
    }

    .btn:focus-visible {
        outline: 2px solid var(--accent-hover);
        outline-offset: 3px;
    }

    .btn--primary {
        background: var(--accent);
        color: var(--accent-ink);
        box-shadow: 0 6px 18px rgba(220, 160, 79, 0.18);
    }

    .btn--primary:hover {
        background: var(--accent-hover);
        transform: translateY(-2px);
        box-shadow: 0 10px 26px rgba(220, 160, 79, 0.26);
        color: var(--accent-ink);
    }

    .btn--primary:active {
        transform: translateY(0);
        box-shadow: 0 4px 12px rgba(220, 160, 79, 0.16);
    }

    .btn--outline {
        border-color: rgba(255, 255, 255, 0.2);
        color: var(--text-main);
        background: transparent;
    }

    .btn--outline:hover {
        border-color: var(--accent);
        color: var(--accent-hover);
        transform: translateY(-2px);
    }

    .btn--small {
        min-height: 42px;
        padding: 0 20px;
        font-size: 0.875rem;
    }

    .btn--large {
        min-height: 52px;
        padding: 0 32px;
    }

    .site-header {
        position: sticky;
        top: 0;
        z-index: 100;
        height: 82px;
        background: rgba(23, 21, 18, 0.86);
        -webkit-backdrop-filter: blur(16px);
        backdrop-filter: blur(16px);
        border-bottom: 1px solid var(--line);
    }

    .header-inner {
        height: 82px;
        display: flex;
        align-items: center;
        gap: 30px;
    }

    .brand {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        color: var(--text-main);
        font-size: 1.125rem;
        font-weight: 500;
        white-space: nowrap;
        letter-spacing: 0.02em;
    }

    .brand:hover,
    .brand:focus-visible {
        color: var(--accent-hover);
    }

    .brand-mark {
        display: inline-flex;
        width: 30px;
        height: 30px;
    }

    .brand-mark svg {
        width: 30px;
        height: 30px;
    }

    .brand .dot {
        color: var(--accent);
        font-weight: 400;
    }

    .site-nav {
        display: flex;
        align-items: center;
        gap: clamp(22px, 2.6vw, 40px);
        margin-left: auto;
    }

    .site-nav a {
        position: relative;
        display: inline-block;
        padding: 30px 0 28px;
        color: var(--text-sub);
        font-size: 0.9375rem;
        letter-spacing: 0.03em;
        line-height: 1.2;
        transition: color 0.2s ease;
    }

    .site-nav a:hover,
    .site-nav a.active {
        color: var(--text-main);
    }

    .site-nav a.active::before {
        content: "";
        position: absolute;
        left: -14px;
        top: 50%;
        transform: translateY(-50%);
        width: 6px;
        height: 6px;
        border-radius: 50%;
        background: var(--accent);
    }

    .site-nav a.active::after {
        content: "";
        position: absolute;
        left: 0;
        right: 0;
        bottom: 8px;
        height: 1px;
        background: var(--accent);
    }

    .header-cta {
        display: flex;
        align-items: center;
        padding-left: 12px;
        border-left: 1px solid var(--line);
    }

    .nav-switch {
        display: none;
        width: 44px;
        height: 44px;
        align-items: center;
        justify-content: center;
        border-radius: 8px;
        color: var(--text-main);
    }

    .nav-switch:hover {
        color: var(--accent);
    }

    .burger-line {
        display: block;
        width: 20px;
        height: 1.5px;
        background: currentColor;
        margin: 3px auto;
        transition: transform 0.25s ease, opacity 0.25s ease;
    }

    .page-hero {
        position: relative;
        min-height: 560px;
        display: flex;
        align-items: center;
        padding: 90px 0 54px;
        overflow: hidden;
        background-color: #211E1A;
        background-image: url('/assets/images/backpic/back-2.webp');
        background-size: cover;
        background-position: center 34%;
        isolation: isolate;
        border-bottom: 1px solid var(--line);
    }

    .page-hero::before {
        content: "";
        position: absolute;
        inset: 0;
        z-index: -1;
        background: linear-gradient(94deg, rgba(23, 21, 18, 0.97) 0%, rgba(23, 21, 18, 0.84) 38%, rgba(23, 21, 18, 0.52) 72%, rgba(23, 21, 18, 0.28) 100%);
    }

    .page-hero__bread {
        display: flex;
        align-items: center;
        flex-wrap: wrap;
        gap: 8px;
        font-size: 0.8125rem;
        color: var(--text-muted);
        letter-spacing: 0.06em;
        margin-bottom: 24px;
    }

    .page-hero__bread a {
        color: var(--text-sub);
    }

    .page-hero__bread a:hover {
        color: var(--accent);
    }

    .page-hero__bread .arrow {
        color: var(--text-muted);
    }

    .page-hero__title {
        max-width: 820px;
        font-size: clamp(2.4rem, 3.4vw + 1.2rem, 4.1rem);
        font-weight: 600;
        line-height: 1.08;
        letter-spacing: -0.03em;
        margin-bottom: 26px;
    }

    .page-hero__title strong {
        color: var(--accent);
        font-weight: 600;
    }

    .page-hero__lead {
        max-width: 620px;
        font-size: 1.0625rem;
        color: var(--text-sub);
        line-height: 1.9;
        margin-bottom: 30px;
    }

    .page-hero__tags {
        display: flex;
        flex-wrap: wrap;
        gap: 12px;
        align-items: center;
    }

    .small-tag {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        font-size: 0.8125rem;
        color: var(--text-sub);
        border: 1px solid rgba(255, 255, 255, 0.12);
        padding: 5px 12px;
        border-radius: 999px;
        letter-spacing: 0.04em;
    }

    .small-tag.accent-dot::before {
        content: "";
        width: 4px;
        height: 4px;
        border-radius: 50%;
        background: var(--accent);
    }

    .editorial-section {
        background: linear-gradient(180deg, var(--bg-page) 0%, rgba(33, 30, 26, 0.6) 100%);
    }

    .editorial-grid {
        display: grid;
        grid-template-columns: repeat(12, 1fr);
        gap: 32px;
        align-items: start;
    }

    .editorial-note {
        grid-column: span 4;
        position: sticky;
        top: 110px;
    }

    .editorial-note h2 {
        font-size: clamp(1.55rem, 1.6vw + 1rem, 2.2rem);
        line-height: 1.3;
        margin-top: 16px;
        margin-bottom: 18px;
        letter-spacing: -0.02em;
    }

    .editorial-note>p {
        color: var(--text-sub);
        margin-bottom: 24px;
        line-height: 1.9;
    }

    .note-tags {
        display: flex;
        flex-wrap: wrap;
        gap: 10px;
        margin-bottom: 28px;
    }

    .note-tags li {
        font-size: 0.875rem;
        color: var(--text-sub);
        background: rgba(255, 255, 255, 0.04);
        border: 1px solid var(--line);
        padding: 4px 12px;
        border-radius: 999px;
    }

    .arrow-link {
        display: inline-flex;
        align-items: center;
        gap: 10px;
        color: var(--accent);
        font-size: 0.9375rem;
        font-weight: 500;
        border-bottom: 1px solid transparent;
        padding-bottom: 2px;
    }

    .arrow-link:hover {
        color: var(--accent-hover);
        border-bottom-color: var(--accent-hover);
    }

    .arrow-link i {
        font-size: 0.8125rem;
        transition: transform 0.2s ease;
    }

    .arrow-link:hover i {
        transform: translateX(4px);
    }

    .editorial-cards {
        grid-column: span 8;
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        grid-auto-rows: minmax(156px, auto);
        gap: 26px;
    }

    .feature-card {
        display: flex;
        flex-direction: column;
        background: var(--bg-card);
        border: 1px solid var(--line);
        border-radius: var(--r-md);
        overflow: hidden;
        transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease;
        box-shadow: 0 2px 10px rgba(0, 0, 0, 0.2);
    }

    .feature-card:hover {
        transform: translateY(-4px);
        border-color: rgba(220, 160, 79, 0.35);
        background: var(--bg-card-hover);
        box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    }

    .feature-card__media {
        position: relative;
        overflow: hidden;
        background: linear-gradient(140deg, #2A241C, #1C1A16);
    }

    .feature-card__media img {
        width: 100%;
        height: 100%;
        object-fit: cover;
        transition: transform 0.4s ease, opacity 0.3s ease;
    }

    .feature-card:hover .feature-card__media img {
        transform: scale(1.04);
    }

    .feature-card__body {
        display: flex;
        flex-direction: column;
        flex: 1;
        padding: 24px 22px 20px;
    }

    .feature-card__body h3 {
        font-size: 1.3125rem;
        font-weight: 600;
        line-height: 1.4;
        letter-spacing: -0.01em;
        margin-bottom: 10px;
    }

    .feature-card__body p {
        color: var(--text-sub);
        font-size: 0.9375rem;
        line-height: 1.85;
        margin-bottom: 18px;
        display: -webkit-box;
        -webkit-line-clamp: 3;
        -webkit-box-orient: vertical;
        overflow: hidden;
    }

    .feature-card__link {
        margin-top: auto;
        display: inline-flex;
        align-items: center;
        gap: 8px;
        color: var(--accent);
        font-size: 0.875rem;
        border-bottom: 1px solid transparent;
        width: fit-content;
    }

    .feature-card__link:hover {
        color: var(--accent-hover);
        border-bottom-color: var(--accent-hover);
    }

    .feature-card__link i {
        font-size: 0.75rem;
    }

    .feature-card--tall {
        grid-row: span 2;
    }

    .feature-card--tall .feature-card__media {
        aspect-ratio: 16 / 10;
    }

    .feature-card--half .feature-card__media {
        aspect-ratio: 16 / 10;
    }

    .feature-card--wide {
        grid-column: span 2;
    }

    .feature-card--wide .feature-card__media {
        aspect-ratio: 16 / 7;
    }

    .flow-section {
        position: relative;
        background: #13110E;
        border-block: 1px solid var(--line);
    }

    .flow-list {
        counter-reset: flow;
        border-top: 1px solid var(--line);
    }

    .flow-item {
        display: grid;
        grid-template-columns: 72px 1fr;
        gap: 28px;
        align-items: start;
        padding: 34px 0;
        border-bottom: 1px solid var(--line);
        transition: background 0.25s ease, border-color 0.25s ease;
    }

    .flow-item:hover {
        background: rgba(255, 255, 255, 0.015);
    }

    .flow-item:hover .flow-num {
        color: var(--accent-hover);
        border-color: rgba(220, 160, 79, 0.45);
    }

    .flow-item h3 {
        font-size: 1.125rem;
        font-weight: 600;
        letter-spacing: -0.01em;
        margin-bottom: 8px;
    }

    .flow-item p {
        color: var(--text-sub);
        font-size: 0.9375rem;
        line-height: 1.85;
        max-width: 660px;
    }

    .flow-num {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        width: 50px;
        height: 50px;
        border-radius: 50%;
        border: 1px solid rgba(255, 255, 255, 0.15);
        color: var(--accent);
        font-size: 0.875rem;
        font-weight: 500;
        letter-spacing: 0.04em;
        transition: color 0.25s ease, border-color 0.25s ease;
    }

    .flow-foot {
        margin-top: 42px;
        display: flex;
        flex-wrap: wrap;
        align-items: center;
        gap: 24px;
    }

    .flow-foot p {
        color: var(--text-sub);
        font-size: 0.9375rem;
        max-width: 420px;
    }

    .usage-list {
        display: grid;
        gap: 0;
        border-top: 1px solid var(--line);
    }

    .usage-row {
        display: grid;
        grid-template-columns: 120px 1fr auto;
        gap: 30px;
        align-items: center;
        padding: 32px 0 32px 8px;
        border-bottom: 1px solid var(--line);
        transition: background 0.25s ease, padding-left 0.25s ease;
    }

    .usage-row:hover {
        background: rgba(255, 255, 255, 0.02);
        padding-left: 16px;
    }

    .usage-index {
        font-size: 1rem;
        color: var(--accent);
        letter-spacing: 0.14em;
        opacity: 0.9;
        font-weight: 500;
    }

    .usage-info h3 {
        font-size: 1.125rem;
        font-weight: 600;
        margin-bottom: 6px;
    }

    .usage-info p {
        color: var(--text-sub);
        font-size: 0.9375rem;
        line-height: 1.8;
        max-width: 640px;
    }

    .usage-tags {
        display: flex;
        gap: 8px;
        flex-wrap: wrap;
        justify-content: flex-end;
    }

    .usage-tags span {
        display: inline-block;
        font-size: 0.8125rem;
        color: var(--text-sub);
        border: 1px solid var(--line);
        border-radius: 999px;
        padding: 4px 12px;
        white-space: nowrap;
    }

    .faq-section {
        background: linear-gradient(180deg, var(--bg-page) 0%, rgba(33, 30, 26, 0.55) 100%);
    }

    .faq-wrap {
        max-width: 880px;
        margin: 0 auto;
    }

    .faq-list {
        margin: 0;
        display: flex;
        flex-direction: column;
    }

    .faq-list .accordion-item {
        background: transparent;
        border: 0;
        border-bottom: 1px solid var(--line);
        border-radius: 0;
        padding: 0;
    }

    .faq-list .accordion-title {
        display: flex;
        align-items: center;
        gap: 22px;
        background: transparent;
        border: 0;
        border-radius: 0;
        color: var(--text-main);
        padding: 30px 36px 30px 0;
        font-size: 1.0625rem;
        font-weight: 400;
        line-height: 1.7;
        transition: color 0.2s ease, padding-left 0.2s ease;
    }

    .faq-list .accordion-title:hover,
    .faq-list .accordion-title:focus {
        background: transparent;
        color: var(--accent-hover);
        padding-left: 4px;
    }

    .faq-list .accordion-title::before,
    .faq-list .accordion-title::after {
        display: none;
    }

    .faq-num {
        font-size: 0.8125rem;
        color: var(--accent);
        letter-spacing: 0.16em;
        font-weight: 400;
        min-width: 32px;
    }

    .faq-icon {
        margin-left: auto;
        color: var(--text-sub);
    }

    .faq-list .accordion-content {
        background: transparent;
        border: 0;
        border-radius: 0;
        color: var(--text-sub);
        font-size: 0.9375rem;
        line-height: 1.9;
        padding: 0 64px 28px 54px;
    }

    .faq-list .accordion-content p {
        color: var(--text-sub);
        margin-bottom: 0;
    }

    .faq-list .accordion-content p+p {
        margin-top: 12px;
    }

    .cta-band {
        padding-top: var(--section-space);
        padding-bottom: var(--section-space);
        position: relative;
        overflow: hidden;
        background: linear-gradient(90deg, rgba(23, 21, 18, 0.94), rgba(33, 30, 26, 0.85));
    }

    .cta-band::before {
        content: "";
        position: absolute;
        inset: 0;
        background: url('/assets/images/backpic/back-3.webp') center / cover no-repeat;
        opacity: 0.24;
        z-index: 0;
    }

    .cta-inner {
        position: relative;
        z-index: 1;
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 32px;
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 18px;
        padding: clamp(34px, 4.5vw, 56px);
        background: rgba(23, 21, 18, 0.78);
        -webkit-backdrop-filter: blur(10px);
        backdrop-filter: blur(10px);
    }

    .cta-copy h2 {
        font-size: clamp(1.6rem, 1.5vw + 1rem, 2.2rem);
        line-height: 1.25;
        letter-spacing: -0.02em;
        font-weight: 600;
        margin-bottom: 10px;
    }

    .cta-copy p {
        color: var(--text-sub);
        max-width: 560px;
        line-height: 1.8;
        font-size: 1rem;
    }

    .cta-actions {
        display: flex;
        flex-direction: column;
        gap: 14px;
        align-items: flex-start;
        min-width: 180px;
    }

    .site-footer {
        padding-top: 70px;
        padding-bottom: 34px;
        background: #13110E;
    }

    .site-footer::before {
        content: "";
        display: block;
        height: 1px;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.12), transparent);
        margin-bottom: 64px;
    }

    .footer-top {
        display: grid;
        grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
        gap: clamp(28px, 4vw, 54px);
        margin-bottom: 56px;
    }

    .footer-brand h3,
    .footer-brand h2 {
        display: flex;
        align-items: center;
        gap: 10px;
        font-size: 1.0625rem;
        font-weight: 600;
        letter-spacing: 0.02em;
        color: var(--text-main);
        margin-bottom: 16px;
    }

    .footer-brand p {
        color: var(--text-muted);
        font-size: 0.875rem;
        line-height: 1.9;
        max-width: 280px;
    }

    .footer-col h4 {
        font-size: 0.875rem;
        color: var(--text-main);
        font-weight: 600;
        letter-spacing: 0.04em;
        margin-bottom: 18px;
    }

    .footer-col ul {
        display: flex;
        flex-direction: column;
        gap: 12px;
    }

    .footer-col li {
        line-height: 1.4;
    }

    .footer-col a {
        display: inline-block;
        color: var(--text-sub);
        font-size: 0.9375rem;
        transition: color 0.2s ease, padding-left 0.2s ease;
    }

    .footer-col a:hover {
        color: var(--accent-hover);
        padding-left: 4px;
    }

    .footer-contact p {
        color: var(--text-sub);
        font-size: 0.9375rem;
        line-height: 1.95;
    }

    .footer-bottom {
        display: flex;
        align-items: center;
        justify-content: space-between;
        flex-wrap: wrap;
        gap: 12px;
        border-top: 1px solid rgba(255, 255, 255, 0.06);
        padding-top: 24px;
        color: var(--text-muted);
        font-size: 0.8125rem;
        letter-spacing: 0.03em;
    }

    .footer-bottom .copyright {
        color: var(--text-muted);
    }

    @media (max-width: 1024px) {
        .site-header {
            height: 70px;
        }

        .header-inner {
            height: 70px;
        }

        .site-nav {
            position: absolute;
            top: 70px;
            left: 14px;
            right: 14px;
            display: flex;
            flex-direction: column;
            align-items: stretch;
            gap: 0;
            background: var(--bg-surface);
            border: 1px solid var(--line);
            border-radius: 14px;
            padding: 10px;
            box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
            opacity: 0;
            pointer-events: none;
            transform: translateY(-10px);
            transition: opacity 0.25s ease, transform 0.25s ease;
        }

        .site-nav.open {
            opacity: 1;
            pointer-events: auto;
            transform: translateY(0);
        }

        .site-nav a {
            display: block;
            padding: 14px 14px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.05);
            color: var(--text-main);
        }

        .site-nav a:last-child {
            border-bottom: 0;
        }

        .site-nav a.active::before,
        .site-nav a.active::after {
            display: none;
        }

        .site-nav a.active {
            color: var(--accent);
        }

        .header-cta {
            margin-left: auto;
            padding-left: 14px;
        }

        .nav-switch {
            display: inline-flex;
        }

        .page-hero {
            padding-top: 70px;
            min-height: 540px;
        }

        .editorial-note {
            position: static;
            grid-column: span 12;
        }

        .editorial-cards {
            grid-column: span 12;
        }

        .footer-top {
            grid-template-columns: 1fr 1fr;
        }
    }

    @media (max-width: 640px) {
        .container {
            width: min(100% - 32px, 1200px);
        }

        .site-header {
            height: 66px;
        }

        .header-inner {
            height: 66px;
            gap: 14px;
        }

        .site-nav {
            top: 66px;
        }

        .brand {
            font-size: 1rem;
        }

        .brand-mark,
        .brand-mark svg {
            width: 26px;
            height: 26px;
        }

        .header-cta {
            display: none;
        }

        .nav-switch {
            margin-left: auto;
        }

        .page-hero {
            min-height: 540px;
            padding: 48px 0 36px;
            background-position: center 38%;
        }

        .page-hero::before {
            background: linear-gradient(180deg, rgba(23, 21, 18, 0.72) 0%, rgba(23, 21, 18, 0.94) 100%);
        }

        .page-hero__title {
            font-size: clamp(2.1rem, 8vw, 2.8rem);
        }

        .page-hero__lead {
            font-size: 1rem;
        }

        .page-hero__tags {
            gap: 8px;
        }

        .section {
            --section-space: 66px;
        }

        .editorial-grid {
            gap: 36px;
        }

        .editorial-cards {
            grid-template-columns: 1fr;
            gap: 20px;
        }

        .feature-card--wide {
            grid-column: span 1;
        }

        .feature-card--wide .feature-card__media {
            aspect-ratio: 16 / 10;
        }

        .feature-card--tall {
            grid-row: auto;
        }

        .flow-item {
            grid-template-columns: 1fr;
            gap: 14px;
            padding: 28px 0;
        }

        .flow-num {
            width: 40px;
            height: 40px;
        }

        .usage-row {
            grid-template-columns: 1fr;
            gap: 10px;
            padding: 28px 0;
        }

        .usage-row:hover {
            padding-left: 8px;
        }

        .usage-info p {
            font-size: 0.9375rem;
        }

        .usage-tags {
            justify-content: flex-start;
        }

        .faq-list .accordion-title {
            padding: 24px 28px 24px 0;
            gap: 14px;
            font-size: 1rem;
        }

        .faq-num {
            min-width: 24px;
        }

        .faq-icon {
            display: none;
        }

        .faq-list .accordion-content {
            padding: 0 16px 24px 44px;
        }

        .cta-inner {
            flex-direction: column;
            align-items: flex-start;
            padding: 34px 26px;
        }

        .cta-actions {
            min-width: 0;
            width: 100%;
        }

        .cta-actions .btn {
            width: 100%;
        }

        .footer-top {
            grid-template-columns: 1fr;
            gap: 32px;
        }

        .footer-bottom {
            flex-direction: column;
            align-items: flex-start;
        }
    }

    @media (min-width: 641px) and (max-width: 1024px) {
        .header-cta .btn {
            min-height: 40px;
            padding: 0 16px;
            font-size: 0.8125rem;
        }

        .btn--large {
            min-height: 48px;
            padding: 0 24px;
        }
    }

/* roulang page: article */
:root {
            --page-bg: #171512;
            --surface: #211e1a;
            --card: #1c1a16;
            --line: rgba(255, 255, 255, .08);
            --line-soft: rgba(255, 255, 255, .06);
            --text: #f0eae1;
            --text-soft: #ddd7cf;
            --muted: #aba296;
            --faint: #7d746c;
            --amber: #dca04f;
            --amber-bright: #efbe77;
            --amber-deep: #b98537;
            --crimson: #c55d4a;
            --radius-lg: 14px;
            --radius-md: 10px;
            --radius-sm: 6px;
            --shadow: 0 2px 14px rgba(0, 0, 0, .35);
            --space-section: clamp(4.2rem, 9vw, 7.4rem);
            --content-width: 1180px;
            --article-width: 820px;
            --header-h: 80px;
            --ease: cubic-bezier(.25, .8, .25, 1);
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            background: var(--page-bg);
            color: var(--text);
            font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Source Han Sans SC", system-ui, -apple-system, sans-serif;
            font-size: 1rem;
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color .25s var(--ease), border-color .25s var(--ease), background-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease), opacity .25s var(--ease);
        }
        img {
            max-width: 100%;
            display: inline-block;
            vertical-align: middle;
            border: 0;
        }
        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }
        ul,
        ol {
            margin: 0;
            padding: 0;
        }
        p,
        h1,
        h2,
        h3,
        h4,
        figure,
        blockquote {
            margin: 0;
        }
        :focus-visible {
            outline: 2px solid var(--amber-bright);
            outline-offset: 3px;
            border-radius: 3px;
        }
        .visually-hidden {
            position: absolute !important;
            width: 1px;
            height: 1px;
            margin: -1px;
            overflow: hidden;
            clip: rect(0 0 0 0);
            white-space: nowrap;
        }
        .container {
            width: min(var(--content-width), 92vw);
            margin-inline: auto;
        }
        section[id],
        [id] {
            scroll-margin-top: calc(var(--header-h) + 8px);
        }

        .site-header {
            position: relative;
            z-index: 60;
            background: rgba(23, 21, 18, .94);
            -webkit-backdrop-filter: blur(12px);
            backdrop-filter: blur(12px);
        }
        .header-inner {
            display: flex;
            align-items: center;
            min-height: var(--header-h);
            border-bottom: 1px solid var(--line);
        }
        .brand {
            display: inline-flex;
            align-items: center;
            gap: .55rem;
            margin-right: auto;
            color: var(--text);
            font-size: 1.32rem;
            font-weight: 600;
            letter-spacing: .01em;
            line-height: 1.1;
        }
        .brand:hover {
            color: var(--amber-bright);
        }
        .brand>span:last-child {
            transform: translateY(.5px);
        }
        .brand .dot {
            color: var(--amber);
            font-weight: 500;
            margin-left: .05rem;
        }
        .brand-mark {
            display: inline-flex;
            width: 30px;
            height: 30px;
            color: var(--amber);
            flex: none;
        }
        .brand-mark svg {
            width: 100%;
            height: 100%;
            display: block;
        }
        .site-nav {
            display: flex;
            align-items: center;
            justify-content: flex-end;
            gap: clamp(1rem, 2.3vw, 2.6rem);
            margin-left: auto;
        }
        .site-nav a {
            position: relative;
            display: inline-block;
            padding: .3rem 0;
            color: var(--muted);
            font-size: .9375rem;
            font-weight: 400;
            letter-spacing: .03em;
            line-height: 1.9;
            white-space: nowrap;
        }
        .site-nav a:hover {
            color: var(--amber-bright);
        }
        .site-nav a.active {
            color: var(--text);
            font-weight: 500;
        }
        .site-nav a.active::before {
            content: "";
            position: absolute;
            left: -.95rem;
            top: 50%;
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--amber);
            transform: translateY(-50%);
        }
        .site-nav a.active::after {
            content: "";
            position: absolute;
            left: 18%;
            right: 18%;
            bottom: -1px;
            height: 1px;
            background: var(--amber);
            border-radius: 2px;
        }
        .header-cta {
            display: flex;
            align-items: center;
            margin-left: 1.4rem;
            padding-left: 1.4rem;
            min-height: var(--header-h);
            border-left: 1px solid var(--line);
        }
        .header-cta .btn {
            white-space: nowrap;
        }
        .nav-switch {
            display: none;
            align-items: center;
            justify-content: center;
            width: 44px;
            height: 44px;
            padding: 0;
            margin-left: 1rem;
            background: transparent;
            border: 1px solid var(--line);
            border-radius: var(--radius-sm);
            cursor: pointer;
        }
        .burger-line {
            display: block;
            width: 22px;
            height: 1.6px;
            margin: 4px auto;
            background: var(--text);
            border-radius: 10px;
            transition: transform .3s var(--ease), opacity .3s var(--ease);
        }
        .nav-switch.open .burger-line:nth-child(1) {
            transform: translateY(5.6px) rotate(45deg);
        }
        .nav-switch.open .burger-line:nth-child(2) {
            opacity: 0;
        }
        .nav-switch.open .burger-line:nth-child(3) {
            transform: translateY(-5.6px) rotate(-45deg);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            border-radius: var(--radius-sm);
            border: 1px solid transparent;
            font-weight: 500;
            line-height: 1;
            cursor: pointer;
            text-align: center;
            transition: transform .3s var(--ease), background-color .3s var(--ease), color .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
        }
        .btn--primary {
            background: var(--amber);
            border-color: var(--amber);
            color: #1d1710;
            box-shadow: 0 4px 16px rgba(220, 160, 79, .12);
        }
        .btn--primary:hover {
            background: var(--amber-bright);
            border-color: var(--amber-bright);
            color: #1c1710;
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(220, 160, 79, .22);
        }
        .btn--ghost {
            background: transparent;
            border-color: rgba(255, 255, 255, .18);
            color: var(--text);
        }
        .btn--ghost:hover {
            border-color: var(--amber);
            color: var(--amber-bright);
            transform: translateY(-2px);
        }
        .btn--small {
            min-height: 38px;
            padding: 0 1rem;
            font-size: .875rem;
        }
        .btn--medium {
            min-height: 44px;
            padding: 0 1.35rem;
            font-size: .9375rem;
        }
        .btn--large {
            min-height: 50px;
            padding: 0 1.8rem;
            font-size: 1rem;
        }
        .btn .btn-arrow {
            transition: transform .25s var(--ease);
        }
        .btn:hover .btn-arrow {
            transform: translateX(4px);
        }
        a.btn:active {
            transform: translateY(0);
        }

        .page-article {
            background: var(--page-bg);
        }
        .article-top {
            position: relative;
            overflow: hidden;
            padding: clamp(3.4rem, 9vw, 6.8rem) 0 clamp(2.6rem, 5vw, 4rem);
            border-bottom: 1px solid var(--line);
            background-image: linear-gradient(90deg, rgba(23, 21, 18, .94) 0%, rgba(23, 21, 18, .72) 46%, rgba(23, 21, 18, .26) 100%), url("/assets/images/backpic/back-2.webp");
            background-position: center center;
            background-size: cover;
        }
        .article-top::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, rgba(23, 21, 18, .4), rgba(23, 21, 18, .0) 55%, rgba(23, 21, 18, .5));
            pointer-events: none;
            z-index: 1;
        }
        .article-top .container {
            position: relative;
            z-index: 2;
        }
        .page-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: .7rem;
            margin-bottom: 1.6rem;
            color: var(--amber);
            font-size: .8125rem;
            letter-spacing: .18em;
            font-weight: 500;
        }
        .page-eyebrow::before {
            content: "";
            width: 2rem;
            height: 1px;
            background: var(--amber);
            opacity: .75;
        }
        .breadcrumb {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            margin: 0 0 1.5rem;
            color: var(--faint);
            font-size: .8438rem;
            line-height: 1.9;
        }
        .breadcrumb a {
            color: var(--muted);
        }
        .breadcrumb a:hover {
            color: var(--amber-bright);
        }
        .crumb-sep {
            padding: 0 .55rem;
            opacity: .45;
        }
        .breadcrumb .crumb-current {
            color: var(--text);
            max-width: 58vw;
            overflow: hidden;
            text-overflow: ellipsis;
            white-space: nowrap;
        }
        .article-top h1 {
            max-width: 880px;
            margin: 0;
            color: #f9f4ed;
            font-size: clamp(2rem, 3vw + .7rem, 3.2rem);
            line-height: 1.22;
            font-weight: 600;
            letter-spacing: -.01em;
            overflow-wrap: anywhere;
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: .5rem 1.7rem;
            margin-top: 1.55rem;
            color: var(--muted);
            font-size: .875rem;
            line-height: 1.9;
        }
        .article-meta .meta-item {
            position: relative;
            display: inline-flex;
            align-items: center;
            gap: .45rem;
        }
        .meta-cat {
            display: inline-flex;
            align-items: center;
            padding: .18rem .7rem;
            border: 1px solid rgba(220, 160, 79, .4);
            border-radius: 40px;
            color: var(--amber);
            font-size: .8125rem;
            letter-spacing: .03em;
        }
        .meta-dot {
            color: var(--faint);
            opacity: .5;
        }
        .meta-source {
            color: var(--faint);
        }
        .meta-source b {
            color: var(--amber);
            font-weight: 500;
        }

        .article-main {
            padding: clamp(2.6rem, 6vw, 4.2rem) 0 clamp(3.6rem, 8vw, 6rem);
            min-height: 58vh;
        }
        .article-inner {
            max-width: var(--article-width);
            margin-inline: auto;
        }
        .article-body {
            color: var(--text-soft);
            font-size: 1rem;
            line-height: 1.92;
            overflow-wrap: break-word;
        }
        .article-body>*+* {
            margin-top: 1.55em;
        }
        .article-body h2,
        .article-body h3,
        .article-body h4 {
            color: #f6f0e8;
            font-weight: 600;
            line-height: 1.35;
            letter-spacing: -.01em;
        }
        .article-body h2 {
            position: relative;
            margin-top: 2.9em;
            padding-left: .9rem;
            font-size: clamp(1.3rem, 1.4vw + .7rem, 1.75rem);
            border-left: 3px solid var(--amber);
        }
        .article-body h3 {
            margin-top: 2.2em;
            font-size: 1.22rem;
        }
        .article-body h4 {
            margin-top: 2em;
            font-size: 1.05rem;
        }
        .article-body p {
            line-height: 1.92;
        }
        .article-body a:not(.tag-pill) {
            color: var(--amber);
            border-bottom: 1px solid rgba(220, 160, 79, .35);
        }
        .article-body a:not(.tag-pill):hover {
            color: var(--amber-bright);
            border-color: rgba(239, 190, 119, .8);
        }
        .article-body ul,
        .article-body ol {
            padding-left: 1.35rem;
            margin-top: 1.5em;
        }
        .article-body li {
            margin-top: .5em;
            line-height: 1.9;
        }
        .article-body li::marker {
            color: var(--amber);
        }
        .article-body blockquote {
            position: relative;
            padding: 1.1rem 1.4rem;
            margin-top: 1.9em;
            border-left: 2px solid var(--amber);
            background: linear-gradient(90deg, rgba(220, 160, 79, .08), rgba(220, 160, 79, .01));
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            color: #e9e0d4;
        }
        .article-body blockquote p {
            margin: 0;
        }
        .article-body blockquote+* {
            margin-top: 1.9em;
        }
        .article-body img {
            border-radius: var(--radius-lg);
            box-shadow: var(--shadow);
            height: auto;
        }
        .article-body figure {
            margin-top: 2rem;
        }
        .article-body figure img {
            margin-bottom: .6rem;
        }
        .article-body figcaption {
            color: var(--faint);
            font-size: .8125rem;
            text-align: center;
        }
        .article-body code {
            padding: .1rem .35rem;
            font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, monospace;
            font-size: .9em;
            color: #f0c88d;
            background: rgba(255, 255, 255, .06);
            border: 1px solid var(--line);
            border-radius: 4px;
        }
        .article-body pre {
            margin-top: 1.9em;
            padding: 1.2rem 1.4rem;
            overflow-x: auto;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            background: #201c18;
            color: #e9dfd0;
            line-height: 1.7;
        }
        .article-body pre code {
            padding: 0;
            background: transparent;
            border: 0;
            color: inherit;
        }
        .article-body table {
            width: 100%;
            margin-top: 1.8em;
            border-collapse: collapse;
            border: 1px solid var(--line);
            border-radius: var(--radius-md);
            overflow: hidden;
        }
        .article-body th,
        .article-body td {
            padding: .7rem 1rem;
            border: 1px solid var(--line);
            text-align: left;
            vertical-align: top;
        }
        .article-body th {
            background: rgba(220, 160, 79, .1);
            color: var(--amber);
            font-weight: 500;
        }

        .article-empty {
            padding: clamp(2.5rem, 5vw, 4rem) 1.5rem;
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            background: var(--card);
            text-align: center;
            box-shadow: var(--shadow);
        }
        .article-empty p {
            margin-bottom: 1.6rem;
            color: var(--muted);
            font-size: 1rem;
        }
        .article-empty .btn {
            min-height: 46px;
            padding: 0 1.5rem;
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: .75rem;
            margin-top: 3.4rem;
            padding-top: 1.8rem;
            border-top: 1px solid var(--line);
        }
        .tag-label {
            color: var(--faint);
            font-size: .875rem;
            letter-spacing: .08em;
        }
        .tag-list {
            display: flex;
            flex-wrap: wrap;
            gap: .55rem;
        }
        .tag-pill {
            display: inline-flex;
            align-items: center;
            padding: .35rem .9rem;
            border: 1px solid var(--line-soft);
            border-radius: 40px;
            background: var(--surface);
            color: var(--muted);
            font-size: .8125rem;
            line-height: 1.6;
            transition: border-color .25s var(--ease), color .25s var(--ease), background-color .25s var(--ease);
        }
        .tag-pill:hover {
            border-color: rgba(220, 160, 79, .6);
            color: var(--amber-bright);
            background: rgba(220, 160, 79, .06);
        }

        .cta-band {
            position: relative;
            overflow: hidden;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
            background:
                radial-gradient(ellipse at 80% 120%, rgba(220, 160, 79, .11), transparent 50%),
                linear-gradient(180deg, rgba(255, 255, 255, .015), rgba(255, 255, 255, 0));
            padding: clamp(3.2rem, 8vw, 5.6rem) 0;
        }
        .cta-inner {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            justify-content: space-between;
            gap: 2rem;
        }
        .cta-copy {
            max-width: 640px;
        }
        .cta-copy .eyebrow {
            display: inline-block;
            color: var(--amber);
            font-size: .8125rem;
            letter-spacing: .18em;
            margin-bottom: .8rem;
        }
        .cta-copy h2 {
            margin: 0 0 .75rem;
            font-size: clamp(1.55rem, 2vw + .4rem, 2.2rem);
            line-height: 1.3;
            color: #f6f0e8;
            font-weight: 600;
            letter-spacing: -.01em;
        }
        .cta-copy p {
            color: var(--muted);
            line-height: 1.85;
            margin: 0;
        }
        .cta-actions {
            display: flex;
            flex-wrap: wrap;
            gap: .9rem;
            align-items: center;
        }

        .extend-section {
            padding: clamp(3.4rem, 8vw, 5.6rem) 0 clamp(4rem, 9vw, 6.6rem);
        }
        .extend-header {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            gap: 1rem;
            margin-bottom: 2.4rem;
        }
        .extend-kicker {
            color: var(--amber);
            font-size: .8438rem;
            letter-spacing: .18em;
            margin-bottom: .4rem;
        }
        .extend-title {
            margin: 0;
            font-size: clamp(1.45rem, 2vw + .3rem, 2rem);
            color: #f3ede5;
            font-weight: 600;
            line-height: 1.3;
        }
        .extend-link {
            color: var(--muted);
            font-size: .875rem;
        }
        .extend-link span {
            color: var(--amber);
            margin-left: .3rem;
            display: inline-block;
            transition: transform .25s var(--ease);
        }
        .extend-link:hover {
            color: var(--amber);
        }
        .extend-grid {
            gap: 1.5rem 0;
        }
        .read-card {
            display: flex;
            height: 100%;
            min-height: 210px;
            background: var(--card);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            transition: transform .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
        }
        .read-card:hover {
            transform: translateY(-4px);
            border-color: rgba(220, 160, 79, .45);
            box-shadow: 0 14px 34px rgba(0, 0, 0, .32);
        }
        .read-card .cover {
            position: relative;
            overflow: hidden;
            flex: 0 0 38%;
            min-height: 190px;
            background: #29241f;
        }
        .read-card .cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            display: block;
            transition: transform .6s var(--ease);
        }
        .read-card:hover .cover img {
            transform: scale(1.05);
        }
        .read-card .card-content {
            display: flex;
            flex-direction: column;
            align-items: flex-start;
            justify-content: center;
            padding: 1.5rem 1.4rem;
        }
        .card-tag {
            display: inline-block;
            margin-bottom: .65rem;
            padding: .2rem .6rem;
            border: 1px solid rgba(220, 160, 79, .35);
            border-radius: 4px;
            color: var(--amber);
            font-size: .75rem;
            letter-spacing: .1em;
        }
        .read-card h3 {
            margin: 0 0 .5rem;
            color: #f1ebe2;
            font-size: 1.2rem;
            line-height: 1.4;
            font-weight: 600;
        }
        .read-card p {
            margin: 0 0 1.1rem;
            color: var(--muted);
            font-size: .875rem;
            line-height: 1.75;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .card-url {
            display: inline-flex;
            align-items: center;
            gap: .35rem;
            color: var(--amber);
            font-size: .875rem;
            font-weight: 500;
        }
        .card-url .btn-arrow {
            display: inline-block;
            transition: transform .25s var(--ease);
        }
        .card-url:hover {
            color: var(--amber-bright);
        }
        .card-url:hover .btn-arrow {
            transform: translateX(4px);
        }

        .site-footer {
            background: #14120f;
            border-top: 1px solid transparent;
            background-image: linear-gradient(90deg, rgba(255, 255, 255, 0), rgba(255, 255, 255, .1), rgba(255, 255, 255, 0));
            background-repeat: no-repeat;
            background-size: 100% 1px;
        }
        .footer-top {
            display: grid;
            grid-template-columns: 1.1fr 1fr .9fr 1.1fr;
            gap: 2.8rem;
            padding: calc(var(--space-section) * .78) 0 2.6rem;
        }
        .footer-brand h3 {
            margin: 0 0 .8rem;
            font-size: 1.15rem;
            color: #f1ebe3;
            line-height: 1.35;
            font-weight: 600;
            display: flex;
            align-items: center;
            gap: .4rem;
        }
        .footer-brand h3 svg {
            width: 24px;
            height: 24px;
            flex: none;
        }
        .footer-brand p {
            margin: 0;
            color: var(--faint);
            font-size: .8438rem;
            line-height: 1.85;
            max-width: 300px;
        }
        .footer-col h4 {
            margin: .4rem 0 1rem;
            color: var(--text-soft);
            font-size: .875rem;
            font-weight: 500;
            letter-spacing: .06em;
        }
        .footer-col ul {
            list-style: none;
            margin: 0;
        }
        .footer-col li {
            margin-bottom: .65rem;
        }
        .footer-col li a {
            color: var(--muted);
            font-size: .875rem;
        }
        .footer-col li a:hover {
            color: var(--amber-bright);
        }
        .footer-contact p {
            color: var(--faint);
            font-size: .8438rem;
            line-height: 1.9;
            margin: 0;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: .6rem;
            padding: 1.5rem 0 2rem;
            border-top: 1px solid rgba(255, 255, 255, .06);
            color: var(--faint);
            font-size: .7813rem;
            line-height: 1.8;
        }
        .footer-bottom .copyright {
            color: var(--faint);
        }

        @media (max-width: 1024px) {
            .nav-switch {
                display: inline-flex;
                margin-left: 1rem;
            }
            .site-nav {
                position: absolute;
                top: calc(var(--header-h) - 1px);
                left: 0;
                right: 0;
                display: none;
                flex-direction: column;
                align-items: flex-start;
                margin-left: 0;
                padding: 1.2rem 7vw 1.8rem;
                background: rgba(23, 21, 18, .98);
                -webkit-backdrop-filter: blur(14px);
                backdrop-filter: blur(14px);
                border-bottom: 1px solid var(--line);
                box-shadow: 0 18px 40px rgba(0, 0, 0, .25);
                gap: .4rem;
            }
            .site-nav.nav-open {
                display: flex;
            }
            .site-nav a {
                width: 100%;
                padding: .7rem 0;
                font-size: 1.0625rem;
                border-bottom: 1px solid rgba(255, 255, 255, .045);
            }
            .site-nav a.active::before {
                left: -.7rem;
            }
            .site-nav a.active::after {
                display: none;
            }
            .header-cta {
                margin-left: auto;
                padding-left: 0;
                border-left: 0;
                min-height: auto;
            }
            .header-inner {
                flex-wrap: wrap;
            }
            .footer-top {
                grid-template-columns: 1fr 1fr;
            }
            .cta-inner {
                align-items: flex-start;
            }
            .read-card {
                flex-direction: row;
            }
        }

        @media (min-width: 641px) and (max-width: 1024px) {
            .article-top h1 {
                max-width: 94%;
            }
            .read-card .cover {
                flex-basis: 36%;
            }
        }

        @media (max-width: 640px) {
            .container {
                width: 90vw;
            }
            .brand {
                font-size: 1.18rem;
            }
            .header-cta {
                margin-left: .6rem;
            }
            .header-cta .btn {
                min-height: 36px;
                padding: 0 .85rem;
                font-size: .8438rem;
            }
            .header-cta {
                border-left: 1px solid var(--line-soft);
                padding-left: .55rem;
                margin-left: .35rem;
            }
            .article-top {
                padding-top: 3rem;
            }
            .article-top h1 {
                font-size: clamp(1.55rem, 7vw + .2rem, 2.1rem);
                line-height: 1.34;
            }
            .article-meta {
                gap: .4rem 1.2rem;
                font-size: .8125rem;
            }
            .breadcrumb {
                margin-bottom: 1.2rem;
                font-size: .8125rem;
            }
            .crumb-current {
                max-width: 68vw !important;
            }
            .article-body {
                font-size: .9688rem;
            }
            .article-body h2 {
                padding-left: .75rem;
            }
            .article-tags {
                align-items: flex-start;
                flex-direction: column;
            }
            .cta-inner {
                flex-direction: column;
                align-items: stretch;
                gap: 1.5rem;
            }
            .cta-actions {
                width: 100%;
            }
            .cta-actions .btn {
                flex: 1;
            }
            .read-card {
                flex-direction: column;
                min-height: 0;
            }
            .read-card .cover {
                flex: none;
                width: 100%;
                min-height: 150px;
            }
            .footer-top {
                grid-template-columns: 1fr;
                gap: 2rem;
                padding-top: 2.8rem;
            }
            .footer-bottom {
                flex-direction: column;
                justify-content: flex-start;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: .01ms !important;
                transition-duration: .01ms !important;
            }
            html {
                scroll-behavior: auto;
            }
        }

/* roulang page: category2 */
:root{
  --page:#171512;
  --panel:#211e1a;
  --card:#1c1a16;
  --divide:rgba(255,255,255,.08);
  --line:rgba(255,255,255,.14);
  --text:#f0eae1;
  --muted:#aba296;
  --weak:#7d746c;
  --accent:#dca04f;
  --accent-hi:#efbe77;
  --danger:#c55d4a;
  --ok:#9dbb77;
  --radius-lg:14px;
  --radius-md:10px;
  --radius-sm:6px;
  --shadow:0 2px 12px rgba(0,0,0,.35);
  --ease:cubic-bezier(.16,1,.3,1);
  --measure:46em;
  --space:clamp(72px,10vw,120px);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{margin:0;background:var(--page);color:var(--text);font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",sans-serif;font-size:16px;line-height:1.8;-webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility}
img{max-width:100%;display:block;border:0}
a{color:var(--text);text-decoration:none;transition:color .25s ease,background .25s ease,border-color .25s ease,transform .25s ease}
a:hover,a:focus{color:var(--accent-hi)}
button{font-family:inherit;font-size:1rem;line-height:1;border:0;background:none;color:inherit;cursor:pointer}
h1,h2,h3,h4{line-height:1.2;margin:0;font-weight:650;letter-spacing:-.01em;color:var(--text)}
h1{font-size:clamp(2.6rem,2.6rem + 1.2vw,4.2rem);line-height:1.06}
h2{font-size:clamp(1.6rem,.8rem + 1.8vw,2.4rem)}
h3{font-size:1.2rem}
p{margin:0 0 1.15em}
ul,ol{margin:0;padding:0;list-style:none}
.container{max-width:81.5rem;margin:0 auto;padding-left:1.75rem;padding-right:1.75rem}
.visually-hidden{position:absolute!important;width:1px!important;height:1px!important;padding:0!important;margin:-1px!important;overflow:hidden!important;clip:rect(0,0,0,0)!important;white-space:nowrap!important;border:0!important}
::selection{background:rgba(220,160,79,.32);color:#fff}

/* ===== 按钮系统 ===== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:.5em;min-height:48px;padding:.52rem 1.65rem;border-radius:8px;border:1px solid transparent;font-weight:600;font-size:.9375rem;letter-spacing:.02em;line-height:1.2;transition:background .28s,color .28s,border-color .28s,transform .28s,box-shadow .28s;text-align:center}
.btn i{font-size:.8em}
.btn--small{min-height:38px;padding:.25rem 1rem;border-radius:6px;font-size:.8437rem}
.btn--primary{background:var(--accent);color:#1b1209;border-color:var(--accent)}
.btn--primary:hover,.btn--primary:focus{background:var(--accent-hi);color:#1b1209;border-color:var(--accent-hi);transform:none}
.btn--ghost{background:transparent;color:var(--text);border-color:var(--line)}
.btn--ghost:hover,.btn--ghost:focus{border-color:var(--accent);color:var(--accent-hi);background:rgba(220,160,79,.06)}
.btn i{transition:transform .28s ease}
.btn--primary:hover i,.btn--ghost:hover i{transform:translateX(3px)}

/* ===== 导航 ===== */
.site-header{position:relative;z-index:100;height:82px;display:flex;align-items:center;border-bottom:1px solid var(--divide);background:rgba(23,21,18,.86);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:2rem;width:100%}
.brand{display:inline-flex;align-items:center;gap:.6rem;flex:0 0 auto;font-size:1.22rem;letter-spacing:.02em;color:var(--text)}
.brand-mark{width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;color:var(--accent);background:rgba(220,160,79,.08);border-radius:10px;border:1px solid rgba(220,160,79,.24)}
.brand-mark svg{width:26px;height:26px}
.brand .dot{color:var(--accent);font-weight:600}
.brand:hover,.brand:focus{color:var(--text)}
.site-nav{display:flex;align-items:center;gap:2.3rem;font-size:.94rem}
.site-nav a{position:relative;color:var(--muted);padding:.35rem 0;line-height:1.6;letter-spacing:.03em}
.site-nav a:hover,.site-nav a:focus{color:var(--accent-hi)}
.site-nav a::after{content:"";position:absolute;left:0;bottom:-2px;height:1px;width:100%;background:var(--accent);opacity:0;transform:scaleX(.4);transform-origin:left;transition:transform .3s var(--ease),opacity .3s ease}
.site-nav a:hover::after,.site-nav a:focus::after{opacity:.85;transform:scaleX(1)}
.site-nav a.active{color:var(--text)}
.site-nav a.active::before{content:"";display:inline-block;width:5px;height:5px;border-radius:999px;background:var(--accent);vertical-align:middle;margin-right:.4em;position:relative;top:-.07em}
.site-nav a.active::after{opacity:1;transform:scaleX(1)}
.header-cta{margin-left:auto}
.nav-switch{display:none;width:42px;height:42px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:8px;background:transparent;color:var(--text);padding:8px 6px;flex-direction:column}
.nav-switch .burger-line{display:block;width:18px;height:1.6px;background:currentColor;margin:3px 0;transition:all .3s ease;border-radius:5px}

/* ===== 页脚 ===== */
.site-footer{border-top:0;position:relative;background:var(--panel)}
.site-footer::before{content:"";display:block;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,.14),transparent)}
.footer-top{display:grid;grid-template-columns:1.4fr .9fr .8fr .9fr;gap:3rem;padding:4rem 0 3.2rem}
.footer-brand h3{display:flex;align-items:center;gap:.6rem;font-size:1.25rem;color:var(--text);margin-bottom:1rem}
.footer-brand p{font-size:.875rem;color:var(--muted);line-height:1.9;margin-bottom:0}
.footer-col h4{font-size:1rem;margin-bottom:1.2rem;color:var(--text)}
.footer-col ul li{margin-bottom:.65rem}
.footer-col ul li a{color:var(--muted);font-size:.875rem}
.footer-col ul li a:hover,.footer-col ul li a:focus{color:var(--accent-hi)}
.footer-contact p{font-size:.875rem;color:var(--muted);line-height:1.8;margin:0}
.footer-bottom{border-top:1px solid var(--divide);display:flex;justify-content:space-between;align-items:center;gap:1rem;padding:1.25rem 0;font-size:.8125rem;color:var(--weak)}

/* ===== 分类页2紧凑 Hero ===== */
.cat-hero{position:relative;background:linear-gradient(90deg,#171512 10%,rgba(23,21,18,.78) 45%,rgba(23,21,18,.2)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;min-height:50vh;display:flex;align-items:center;overflow:hidden;padding:6.2rem 0 5.8rem;border-bottom:1px solid rgba(255,255,255,.05)}
.cat-hero .cat-hero-content{max-width:810px;position:relative;z-index:2}
.cat-kicker{display:inline-flex;align-items:center;gap:.6rem;color:var(--accent);font-size:.8rem;letter-spacing:.18em;text-transform:uppercase;font-weight:600;margin-bottom:1.2rem;background:rgba(220,160,79,.07);border:1px solid rgba(220,160,79,.2);border-radius:999px;padding:.32rem .9rem}
.cat-hero h1{margin:0 0 1rem;font-size:clamp(2.4rem,2rem + 1.6vw,3.8rem)}
.cat-hero h1 strong{color:var(--accent);font-weight:inherit}
.cat-lead{color:var(--muted);font-size:clamp(1rem,.5rem + 1rem,1.18rem);line-height:1.95;max-width:38em;margin:0 0 1.6rem}
.cat-hero-actions{display:flex;align-items:center;gap:1rem;flex-wrap:wrap}
.cat-hero-meta{display:flex;gap:1.9rem;margin-top:2.2rem;flex-wrap:wrap;border-top:1px solid rgba(255,255,255,.07);padding-top:1.25rem}
.cat-hero-meta span{color:var(--muted);font-size:.875rem;display:inline-flex;align-items:center;gap:.5rem}
.cat-hero-meta i{color:var(--accent)}

/* ===== 分类2：横向索引条 ===== */
.index-strip{position:relative;background:#1b1916;border-bottom:1px solid rgba(255,255,255,.05)}
.index-strip-inner{display:flex;gap:.8rem;align-items:center;overflow-x:auto;padding:1rem 0;scrollbar-width:none;-ms-overflow-style:none}
.index-strip-inner::-webkit-scrollbar{display:none}
.index-strip a{flex:0 0 auto;display:inline-flex;align-items:center;gap:.45rem;color:var(--muted);padding:.4rem 1.15rem;border-radius:999px;border:1px solid rgba(255,255,255,.1);font-size:.8437rem;line-height:1.5;transition:all .2s}
.index-strip a::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--accent);opacity:.7}
.index-strip a:hover,.index-strip a:focus{color:var(--accent-hi);border-color:rgba(220,160,79,.55)}

/* ===== 通用区块 ===== */
.section-block{padding:var(--space) 0}
.section-block--slim{padding:calc(var(--space)*.65) 0}
.section-head{margin-bottom:3rem;display:flex;align-items:flex-end;justify-content:space-between;gap:2rem;flex-wrap:wrap}
.section-tag{display:inline-flex;align-items:center;gap:.4rem;color:var(--accent);font-weight:600;letter-spacing:.18em;font-size:.8rem;text-transform:uppercase;margin-bottom:.7rem}
.section-head h2{margin-bottom:.5rem}
.section-desc{color:var(--muted);max-width:46em}
.text-link{display:inline-flex;align-items:center;gap:.5rem;color:var(--accent);font-size:.9rem;font-weight:600}
.text-link:hover,.text-link:focus{color:var(--accent-hi)}
.text-link i{transition:transform .25s ease}
.text-link:hover i,.text-link:focus i{transform:translateX(3px)}

/* ===== 榜单列表（分类2主体） ===== */
.rank-wrap{background:var(--panel);border:1px solid var(--divide);border-radius:var(--radius-lg)}
.rank-item{position:relative;display:grid;grid-template-columns:230px 1fr auto;align-items:center;gap:2rem;padding:1.6rem 2rem;border-bottom:1px solid rgba(255,255,255,.07)}
.rank-item:last-child{border-bottom:0}
.rank-item:hover,.rank-item:focus-within{background:rgba(255,255,255,.02)}
.rank-media{position:relative;overflow:hidden;border-radius:10px;aspect-ratio:16/10;background:#241f1a;box-shadow:var(--shadow)}
.rank-media img{width:100%;height:100%;object-fit:cover;transition:transform .6s var(--ease)}
.rank-item:hover .rank-media img{transform:scale(1.045)}
.rank-tag{position:absolute;left:.6rem;top:.6rem;background:rgba(197,93,74,.9);color:#fff;font-size:.75rem;padding:0 .6rem;border-radius:4px;line-height:1.9;letter-spacing:.08em;z-index:2}
.rank-tag--accent{background:rgba(220,160,79,.92);color:#1d150c}
.rank-no{position:absolute;right:.6rem;bottom:.4rem;font-size:1.9rem;font-weight:600;color:rgba(255,255,255,.22);line-height:1;z-index:1;font-family:Arial,sans-serif}
.rank-title{font-size:1.32rem;color:var(--text);margin:0 0 .5rem;line-height:1.4}
.rank-meta{display:flex;gap:1rem;flex-wrap:wrap;align-items:center;margin-bottom:.5rem;font-size:.78rem;color:var(--weak)}
.rank-meta i{color:var(--accent);font-size:.9em}
.rank-summary{color:var(--muted);font-size:.9375rem;line-height:1.8;max-width:52em}
.rank-link{margin-top:.8rem}
.rank-link a{display:inline-flex;align-items:center;gap:.5rem;color:var(--accent);font-size:.875rem;font-weight:600}
.rank-link a i{transition:transform .25s ease}
.rank-link a:hover i,.rank-link a:focus i{transform:translateX(3px)}

/* ===== 特性数据点（三列能力速览） ===== */
.feature-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:1.2rem}
.feature-card{background:var(--card);border:1px solid var(--divide);padding:1.9rem;border-radius:var(--radius-lg);transition:border .25s ease,transform .25s ease,background .25s}
.feature-card:hover{border-color:rgba(220,160,79,.3);transform:translateY(-4px);background:#1f1b16}
.feature-icon{width:48px;height:48px;border-radius:12px;background:rgba(220,160,79,.1);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:1.35rem;margin-bottom:1.25rem;border:1px solid rgba(220,160,79,.18)}
.feature-card h3{margin-bottom:.6rem;font-size:1rem;color:var(--text)}
.feature-card p{color:var(--muted);font-size:.875rem;line-height:1.75;margin:0}

/* ===== 适配范围（设备分栏） ===== */
.device-panel{background:var(--panel);border:1px solid var(--divide);border-radius:var(--radius-lg)}
.device-panel-head{padding:2rem 2rem 1.2rem}
.device-panel-head h3{margin:0 .4rem}
.device-list .device-row{display:flex;align-items:center;justify-content:space-between;gap:1.4rem;padding:1rem 1.6rem;border-top:1px solid rgba(255,255,255,.06);transition:background .2s}
.device-row:hover{background:rgba(255,255,255,.025)}
.device-name{display:flex;align-items:center;gap:.8rem;color:var(--text);flex-wrap:wrap}
.device-name i{width:42px;height:42px;flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;border-radius:10px;background:rgba(220,160,79,.08);color:var(--accent);font-size:1.1rem}
.device-name span b{display:block;font-weight:600;font-size:.96rem}
.device-name span i{display:block;font-style:normal;font-size:.79rem;color:var(--weak);font-weight:400}
.device-note{text-align:right}
.device-note em{display:block;font-style:normal;color:var(--muted);font-size:.8125rem}
.device-note small{font-size:.75rem;color:var(--weak)}

/* ===== 接入概念（装饰区） ===== */
.concept-split{display:grid;grid-template-columns:1fr 1fr;gap:2.2rem;align-items:center}
.concept-media{position:relative}
.concept-media .backdrop{position:absolute;inset:0;background:linear-gradient(180deg,transparent 15%,rgba(0,0,0,.55));border-radius:14px;z-index:2}
.concept-media img{border-radius:14px;border:1px solid var(--line);box-shadow:0 20px 60px rgba(0,0,0,.35)}
.concept-quote{background:rgba(23,21,18,.82);border:1px solid rgba(220,160,79,.26);border-radius:14px;padding:17px 20px;color:var(--text);font-size:.9375rem;line-height:1.8;z-index:4;margin-top:-46px;margin-right:1rem;margin-left:1rem;position:relative;backdrop-filter:blur(8px)}
.concept-quote i{color:var(--accent)}
.concept-body h2{margin-bottom:1rem}
.concept-body p{color:var(--muted);margin-bottom:1.2em}
.concept-points li{display:flex;gap:.85rem;color:var(--muted);padding:.65rem 0;border-bottom:1px solid rgba(255,255,255,.05)}
.concept-points li:last-child{border-bottom:0}
.concept-points i{color:var(--accent);margin-top:.2rem}

/* ===== 流程 ===== */
.workflows{display:grid;grid-template-columns:repeat(4,1fr);gap:1.1rem}
.workflow-step{background:var(--card);border:1px solid var(--divide);border-radius:var(--radius-lg);padding:1.8rem 1.5rem;position:relative;transition:border-color .25s ease}
.workflow-step:hover{border-color:rgba(220,160,79,.35)}
.workflow-step .wo-num{display:block;font-family:Arial,sans-serif;font-weight:600;color:var(--accent);opacity:.9;font-size:.9rem;letter-spacing:.14em;margin-bottom:1.6rem}
.workflow-step .wo-num::after{content:"";display:block;width:24px;height:1.5px;background:rgba(220,160,79,.65);margin-top:.55rem}
.workflow-step h3{font-size:1.08rem;margin-bottom:.4rem}
.workflow-step p{font-size:.8437rem;color:var(--muted);margin:0}

/* ===== FAQ ===== */
.faq-skin{max-width:920px}
.faq-row{background:transparent;border:0;border-bottom:1px solid rgba(255,255,255,.08);border-radius:0;padding:0}
.faq-row summary{display:grid;grid-template-columns:48px 1fr auto;gap:.6rem;align-items:center;cursor:pointer;list-style:none;padding:1.15rem 0;color:var(--text);font-size:1.03rem;font-weight:560;transition:color .2s}
.faq-row summary::-webkit-details-marker{display:none}
.faq-row summary:hover{color:var(--accent-hi)}
.faq-no{font-family:Arial,sans-serif;font-weight:400;color:var(--accent);font-size:.8437rem}
.faq-ico{color:var(--weak);transition:transform .25s ease}
details[open].faq-row .faq-ico{transform:rotate(45deg);color:var(--accent)}
.faq-row .faq-body{max-width:58em;color:var(--muted);padding:0 0 1.55rem 48px;font-size:.9375rem;line-height:2}

/* ===== 资信栏 ===== */
.rank-band{display:grid;grid-template-columns:repeat(4,1fr);border:1px solid var(--divide);border-radius:var(--radius-lg);overflow:hidden}
.rank-stat{background:var(--card);padding:1.8rem 1.6rem;text-align:center;border-right:1px solid rgba(255,255,255,.05)}
.rank-stat:last-child{border-right:0}
.rank-stat b{display:block;font-size:clamp(1.5rem,1.3rem + .6vw,2.2rem);font-weight:650;color:var(--text);font-family:Arial,sans-serif;line-height:1.25}
.rank-stat b em{color:var(--accent);font-style:normal}
.rank-stat span{color:var(--weak);font-size:.875rem;line-height:1.6}

/* ===== CTA 窄横幅 ===== */
.cta-banner{border:1px solid rgba(220,160,79,.22);background:linear-gradient(110deg,rgba(220,160,79,.12) 0%,rgba(23,21,18,.3) 60%),#1b1916;border-radius:20px;padding:clamp(2.2rem,4vw,3.6rem);display:flex;justify-content:space-between;align-items:center;gap:2rem;flex-wrap:wrap;box-shadow:var(--shadow);position:relative;overflow:hidden}
.cta-banner::after{content:"";position:absolute;right:-60px;top:-60px;width:180px;height:180px;border:1px solid rgba(220,160,79,.3);border-radius:50%}
.cta-banner h2{font-size:clamp(1.7rem,1.4rem + 1.2vw,2.3rem);margin-bottom:.6rem}
.cta-banner p{color:var(--muted);max-width:54em;font-size:.9375rem;margin:0}
.cta-banner .btn{flex:0 0 auto}
.cta-links a{color:var(--accent);font-weight:600;font-size:.9rem;border-bottom:1px solid rgba(220,160,79,.3);padding-bottom:1px;margin-right:1.2rem}

/* ===== 覆盖 Foundation ===== */
.row{max-width:81.5rem}
.columns{padding-left:1.75rem;padding-right:1.75rem}

/* ===== 响应式 ===== */
@media(max-width:1024px){
  .footer-top{grid-template-columns:1fr 1fr;gap:2.4rem}
  .rank-item{grid-template-columns:190px 1fr;gap:1.4rem}
  .device-row{flex-wrap:wrap}
  .workflows{grid-template-columns:repeat(2,1fr)}
  .feature-grid{grid-template-columns:1fr 1fr}
  .concept-split{display:block}
  .concept-media{margin-bottom:3rem}
}
@media(max-width:767px){
  .site-header{height:auto;padding:.75rem 0}
  .header-inner{flex-wrap:wrap;row-gap:.75rem}
  .brand{width:auto}
  .site-nav{display:block;order:3;width:100%;background:#1f1c18;border:1px solid var(--divide);border-radius:14px;box-shadow:0 18px 30px rgba(0,0,0,.25);padding:.6rem;margin-top:.2rem;gap:1rem}
  .site-nav a{display:flex;padding:.7rem .8rem;border-radius:8px;color:var(--text);font-size:.9375rem}
  .site-nav a::after{display:none}
  .site-nav a:hover,.site-nav a:focus{background:rgba(220,160,79,.08);color:var(--accent-hi)}
  .site-nav a.active::before{content:"";margin-right:.5rem}
  .header-cta{margin-left:0;order:2}
  .nav-switch{display:flex}
  .site-header .container{flex-wrap:wrap;align-items:center}
  .index-strip-inner{padding:.6rem 0}
  .rank-item{grid-template-columns:1fr;gap:1rem;padding:1.4rem 1.2rem}
  .rank-media{aspect-ratio:16/9}
  .rank-title{font-size:1.18rem}
  .device-note{text-align:left}
  .feature-grid{grid-template-columns:1fr;gap:1rem}
  .rank-band{grid-template-columns:1fr 1fr}
  .rank-stat{border:0}
  .rank-stat:nth-child(1){border-bottom:1px solid var(--divide);border-right:1px solid var(--divide)}
  .rank-stat:nth-child(2){border-bottom:1px solid var(--divide)}
  .rank-stat:nth-child(3){border-right:1px solid var(--divide)}
  .role{font-size:.7rem}
  .cat-hero{min-height:auto;padding:4.2rem 0}
  .section-head{align-items:flex-start;flex-direction:column;gap:1rem}
  .btn{width:100%;justify-content:center}
  .cat-hero-actions{display:flex;flex-direction:column;align-items:stretch;width:100%;gap:.75rem}
  .cat-hero-meta{gap:.8rem 1.4rem;justify-content:flex-start;flex-direction:column}
  .cat-hero-meta span{justify-content:flex-start}
  .cta-banner .btn{margin-top:.8rem}
  .cta-links{width:100%}
  .footer-top{grid-template-columns:1fr;gap:2rem;padding-bottom:2rem}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:.6rem}
  .workflows{grid-template-columns:1fr}
  .concept-quote{margin-top:-30px;margin-left:.6rem;margin-right:.6rem}
  .faq-row summary{grid-template-columns:26px 1fr auto}
  .faq-body{padding-left:26px!important}
}
@media(max-width:520px){
  .container{padding-left:1.05rem;padding-right:1.05rem}
  .site-header{padding:.6rem 0}
  .brand{font-size:1.08rem}
  .brand-mark{width:27px;height:27px;border-radius:8px}
  .btn{padding:.5rem 1.15rem}
  .rank-band{grid-template-columns:1fr 1fr}
  .rank-stat{padding:1.3rem .8rem}
  .cat-hero h1{}
  .feature-icon{margin-bottom:.9rem}
  .footer-top .footer-brand p{font-size:.8437rem}
}

/* ===== 暗背景 a11y 焦点 ===== */
a:focus-visible,button:focus-visible,summary:focus-visible,.site-nav a:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.rank-link a:focus-visible{outline-offset:3px}