/* roulang page: index */
:root{
  --paper:#F5F2EC;
  --surface:#FFFFFF;
  --ink:#1B1C19;
  --ink-soft:#33322E;
  --text:#2B2A26;
  --muted:#69645B;
  --line:#DDD8CE;
  --line-deep:#C8C1B5;
  --green:#1F4C47;
  --green-dark:#153A36;
  --bronze:#BD8E66;
  --dark:#121411;
  --dark-text:#F2EFE9;
  --dark-muted:#B9B5AC;
  --radius:6px;
  --radius-sm:3px;
  --shadow-sm:0 8px 30px rgba(0,0,0,.04);
  --shadow-md:0 16px 40px rgba(0,0,0,.07);
  --transition:.25s ease;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:1.0625rem;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea{font-family:inherit;}
::selection{background:var(--green);color:#fff;}
h1,h2,h3,h4,h5,.h1,.h2,.h3{color:var(--ink);font-weight:700;line-height:1.2;}
section[id],div[id]{scroll-margin-top:88px;}
.container-xxl{max-width:1320px;}
.container-narrow{max-width:760px;}
[data-reveal]{opacity:0;transform:translateY(20px);transition:opacity .7s ease,transform .7s ease;}
[data-reveal].is-visible{opacity:1;transform:none;}

.btn{
  --bs-btn-focus-shadow-rgb:0,0,0;
  border-radius:var(--radius-sm);
  font-weight:600;
  letter-spacing:.02em;
  padding:.8rem 1.9rem;
  min-height:48px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.5rem;
  border:1px solid transparent;
  transition:background .25s,border-color .25s,color .25s,transform .25s;
}
.btn:hover{transform:translateY(-2px);}
.btn:focus-visible{outline:2px solid var(--bronze);outline-offset:3px;}
.btn-ink{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn-ink:hover{background:var(--green-dark);border-color:var(--green-dark);color:#fff;}
.btn-light{background:#F5F2EC;color:var(--ink);border-color:var(--line);}
.btn-light:hover{background:#fff;color:var(--ink);}
.btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.55);color:#FFF;}
.btn-ghost-light:hover{background:rgba(255,255,255,.08);border-color:#fff;color:#fff;}
.btn-dark{background:var(--dark);color:#fff;border-color:var(--dark);}
.btn-dark:hover{background:#24281f;border-color:#24281f;color:#fff;}

.text-link{
  display:inline-flex;align-items:center;gap:.35rem;
  font-weight:600;color:var(--green);border-bottom:1px solid transparent;
  transition:border-color .2s;
}
.text-link svg{transition:transform .25s;}
.text-link:hover{color:var(--green-dark);border-bottom-color:rgba(31,76,71,.35);}
.text-link:hover svg{transform:translateX(4px);}
.tag{
  display:inline-flex;align-items:center;gap:.4rem;
  font-size:.8rem;font-weight:600;color:var(--muted);
  border:1px solid var(--line);background:transparent;
  padding:.22rem .7rem;border-radius:999px;
}
.tag::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--bronze);}

/* header */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1090;
  background:linear-gradient(180deg,rgba(18,20,17,.5),rgba(18,20,17,0));
  transition:background .3s,box-shadow .3s;
}
.site-header.is-scrolled{
  background:rgba(245,242,236,.96);
  box-shadow:0 1px 0 var(--line);
}
.header-inner{height:84px;transition:height .3s;}
.site-header.is-scrolled .header-inner{height:68px;}
.brand{
  display:inline-flex;flex-direction:column;line-height:1;
  font-size:1.25rem;font-weight:800;color:#fff;letter-spacing:-.01em;
  transition:color .3s;
}
.brand small{
  margin-top:.42rem;font-size:.68rem;font-weight:500;letter-spacing:.18em;
  color:rgba(255,255,255,.62);text-transform:uppercase;
}
.brand .brand-dot{color:var(--bronze);}
.site-header.is-scrolled .brand{color:var(--ink);}
.site-header.is-scrolled .brand small{color:var(--muted);}
.site-nav{display:flex;align-items:center;gap:.55rem;}
.nav-item{
  font-weight:600;font-size:.92rem;color:rgba(255,255,255,.9);
  padding:.55rem .95rem;display:inline-flex;align-items:center;gap:.3rem;
  position:relative;transition:color .2s;
}
.nav-item::after{
  content:"";position:absolute;left:.85rem;right:.85rem;bottom:-2px;height:2px;
  background:var(--bronze);transform:scaleX(0);transform-origin:left;
  transition:transform .25s;
}
.nav-item:hover::after,.nav-item.active::after{transform:scaleX(1);}
.site-header.is-scrolled .nav-item{color:var(--ink);}
.nav-item.active{color:var(--green);}
.status-pill{
  display:inline-flex;align-items:center;gap:.5rem;
  border:1px solid rgba(255,255,255,.35);border-radius:999px;
  padding:.42rem .95rem;font-size:.78rem;color:rgba(255,255,255,.92);
}
.status-dot{width:7px;height:7px;border-radius:50%;background:#6BBFA4;box-shadow:0 0 0 3px rgba(107,191,164,.22);}
.site-header.is-scrolled .status-pill{color:var(--ink);border-color:var(--line);}
.site-header.is-scrolled .status-dot{background:#4AA88C;}
.header-cta .btn{
  min-height:44px;padding:.55rem 1.3rem;font-size:.9rem;
  background:var(--ink);color:#fff;
}
.header-cta .btn:hover{background:var(--green-dark);}

/* hamburger & mobile */
.nav-toggle{
  width:44px;height:44px;border:1px solid rgba(255,255,255,.35);border-radius:50%;
  background:transparent;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  transition:border-color .3s;
}
.site-header.is-scrolled .nav-toggle{border-color:var(--line);}
.nav-toggle span{width:18px;height:1.6px;background:#fff;display:block;transition:transform .25s,opacity .25s,background .25s;}
.site-header.is-scrolled .nav-toggle span{background:var(--ink);}
body.nav-open .site-header .nav-toggle{border-color:transparent;}
body.nav-open .site-header .nav-toggle span{background:#fff;}
body.nav-open .site-header .nav-toggle span:nth-child(1){transform:translateY(6.6px) rotate(45deg);}
body.nav-open .site-header .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .site-header .nav-toggle span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg);}
.mobile-menu{
  position:fixed;inset:0;z-index:1080;background:var(--dark);color:#fff;
  padding:120px 32px 40px;display:flex;flex-direction:column;gap:1rem;
  opacity:0;visibility:hidden;transition:opacity .3s,visibility .3s;
}
body.nav-open{overflow:hidden;}
body.nav-open .mobile-menu{opacity:1;visibility:visible;}
.mobile-menu a.m-nav{
  font-size:1.65rem;font-weight:700;color:rgba(255,255,255,.92);
  padding:.8rem 0;border-bottom:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;gap:.7rem;opacity:0;transform:translateY(14px);
  transition:opacity .3s,transform .3s;
}
body.nav-open .mobile-menu a.m-nav{opacity:1;transform:none;}
.mobile-menu a.m-nav.active{color:#DDC7B4;}
body.nav-open .mobile-menu a.m-nav:nth-child(1){transition-delay:.08s;}
body.nav-open .mobile-menu a.m-nav:nth-child(2){transition-delay:.14s;}
body.nav-open .mobile-menu a.m-nav:nth-child(3){transition-delay:.2s;}
body.nav-open .mobile-menu a.m-nav:nth-child(4){transition-delay:.26s;}
body.nav-open .mobile-menu a.m-nav:nth-child(5){transition-delay:.32s;}

.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  background:url('/assets/images/backpic/back-1.webp') no-repeat center bottom/cover;
  color:#fff;overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(92deg,rgba(10,12,10,.92) 0%,rgba(10,12,10,.7) 35%,rgba(10,12,10,.25) 78%,rgba(10,12,10,.1) 100%);
}
.hero-bgtext{
  content:"";position:absolute;right:-2%;top:8%;font-size:17vw;font-weight:800;
  letter-spacing:-.05em;color:rgba(255,255,255,.035);pointer-events:none;line-height:1;
  transform:rotate(90deg);transform-origin:right top;user-select:none;
}
.hero-inner{position:relative;z-index:2;width:100%;padding:150px 0 128px;}

.hero-tag{
  display:inline-flex;align-items:center;gap:.7rem;color:#EDE9E2;
  font-size:.8rem;font-weight:600;letter-spacing:.14em;margin-bottom:1.6rem;
  border:1px solid rgba(255,255,255,.35);border-radius:999px;padding:.4rem 1rem;
}
.hero-tag::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--bronze);}
.hero h1{
  font-size:clamp(2.9rem,6vw,5.4rem);
  line-height:1.04;font-weight:800;letter-spacing:-.025em;
  color:#fff;text-shadow:0 12px 40px rgba(0,0,0,.18);
  max-width:780px;margin:0 0 1.4rem;
}
.hero-lead{
  color:rgba(250,247,242,.82);font-size:clamp(1rem,1.25vw,1.125rem);
  line-height:1.85;max-width:600px;margin-bottom:2rem;font-weight:400;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:1rem;margin-bottom:2.4rem;}
.hero-bottom-row{
  margin-top:auto;padding-top:1.4rem;border-top:1px solid rgba(255,255,255,.22);
  display:flex;flex-wrap:wrap;gap:1rem .4rem;justify-content:flex-start;align-items:center;
  position:relative;
}
.hero-bottom-row .sep{color:rgba(255,255,255,.36);font-size:.8rem;padding:0 .3rem;}
.anchor-link{
  color:rgba(255,255,255,.82);font-size:.9rem;font-weight:600;
  display:inline-flex;align-items:center;gap:.25rem;padding:.3rem .7rem;transition:color .2s;
}
.anchor-link:hover{color:#fff;}
.scroll-cue{
  position:absolute;right:0;bottom:3.4rem;writing-mode:vertical-rl;
  letter-spacing:.3em;font-size:.72rem;font-weight:500;
  color:rgba(255,255,255,.55);display:flex;align-items:center;gap:.7rem;
}
.scroll-cue::before{
  content:"";width:1px;height:62px;display:block;
  background:linear-gradient(180deg,transparent,rgba(255,255,255,.8));
}
@media (max-width:991px){.scroll-cue{display:none;}}
@media (max-width:575px){
  .hero-inner{padding:125px 0 80px;}
  .hero-actions .btn{width:100%;}
}

/* sections base */
.section{padding:108px 0;}
.section-head{margin-bottom:56px;}
.section-kicker{
  display:flex;align-items:center;gap:.75rem;font-size:.82rem;
  color:var(--bronze);font-weight:700;letter-spacing:.16em;margin-bottom:.9rem;
}
.section-kicker::before{content:"";width:28px;height:1px;background:var(--bronze);}
.section-title{
  font-size:clamp(2.1rem,3.6vw,3.4rem);line-height:1.12;letter-spacing:-.025em;
  max-width:22ch;color:var(--ink);margin-bottom:.7rem;
}
.section-sub{color:var(--muted);max-width:560px;font-size:1rem;line-height:1.85;}
.section-link{font-size:.9rem;}

/* features */
#features{background:var(--paper);border-bottom:1px solid var(--line);}
.features-sticky{position:sticky;top:130px;}
.feature-list{border-top:1px solid var(--line-deep);}
.feature-item{
  display:grid;grid-template-columns:76px 1fr;gap:1rem 1.4rem;
  padding:2.1rem .4rem;border-bottom:1px solid var(--line);align-items:flex-start;
  transition:background .25s,padding-left .25s;
}
.feature-item:hover{padding-left:1.1rem;background:rgba(255,255,255,.45);}
.feature-num{
  font-size:.95rem;font-weight:700;color:var(--bronze);letter-spacing:.04em;
  font-variant-numeric:tabular-nums;padding-top:.45rem;
}
.feature-title{font-size:1.4rem;font-weight:700;color:var(--ink);margin-bottom:.5rem;display:flex;align-items:center;gap:.7rem;}
.feature-desc{color:var(--muted);max-width:620px;line-height:1.8;}
.feature-arrow{color:var(--green);display:inline-flex;align-items:center;gap:.3rem;font-size:.9rem;font-weight:600;margin-top:.6rem;}
.feature-arrow svg{transition:transform .2s;}
.feature-arrow:hover{color:var(--green-dark);}
.feature-arrow:hover svg{transform:translateX(4px);}

/* showcase */
#showcase{background:#FFFFFF;border-bottom:1px solid var(--line);}
.showcase-item{padding:74px 0;border-bottom:1px solid var(--line);}
.showcase-item:last-child{border-bottom:none;}
.showcase-media{
  position:relative;border-radius:10px;overflow:hidden;aspect-ratio:16/10;
  background:#E7E2D9;box-shadow:var(--shadow-sm);
}
.showcase-media img{width:100%;height:100%;object-fit:cover;transition:transform .7s ease;}
.showcase-item:hover .showcase-media img{transform:scale(1.02);}
.showcase-media::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(0,0,0,.12));pointer-events:none;
}
.showcase-copy{padding:1rem 0;}
.showcase-copy .tag{margin-bottom:1.1rem;}
.showcase-copy h3{
  font-size:clamp(1.5rem,2.2vw,2.1rem);letter-spacing:-.02em;
  line-height:1.3;color:var(--ink);margin-bottom:1rem;max-width:440px;
}
.showcase-copy p{color:var(--muted);margin-bottom:1.4rem;max-width:470px;}
.showcase-desc{font-size:.9rem;color:var(--muted);}
.showcase-media-caption{
  margin-top:1rem;display:flex;align-items:center;justify-content:space-between;gap:1rem;
  font-size:.86rem;color:var(--muted);
}
@media (max-width:991px){
  .showcase-copy{margin-top:.5rem;}
}

/* evidence */
#evidence{
  background:var(--dark);color:var(--dark-text);
  border-bottom:1px solid rgba(255,255,255,.06);padding:104px 0;
}
#evidence .section-kicker{color:#C9A27F;}
#evidence .section-title{color:#F5F1EA;}
#evidence .section-sub{color:#AAA79F;}
.evidence-grid{
  display:grid;grid-template-columns:repeat(4,1fr);margin-top:3rem;
  border-top:1px solid rgba(255,255,255,.16);border-bottom:1px solid rgba(255,255,255,.16);
}
.evidence-cell{
  padding:2rem 1.5rem 1.8rem 0;border-right:1px solid rgba(255,255,255,.12);
}
.evidence-cell:last-child{border-right:none;}
.evidence-num{
  font-size:clamp(2.3rem,4vw,3.6rem);font-weight:800;letter-spacing:-.04em;
  font-variant-numeric:tabular-nums;color:#EAE6DF;line-height:1;margin-bottom:.7rem;
}
.evidence-num sup{font-size:1.4rem;color:var(--bronze);margin-left:1px;}
.evidence-label{font-size:.86rem;color:#A9A59B;letter-spacing:.04em;}
@media (max-width:991px){
  .evidence-grid{grid-template-columns:1fr;border-bottom:none;}
  .evidence-cell{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);display:flex;gap:1rem;align-items:baseline;padding:1.2rem 0;}
  .evidence-cell:last-child{border-bottom:none;}
  .evidence-num{flex-shrink:0;}
}

/* news */
#news{background:var(--paper);border-bottom:1px solid var(--line);}
.news-list{border-top:1px solid var(--line-deep);}
.news-item{
  display:grid;grid-template-columns:170px 1fr auto;gap:0 1.5rem;align-items:center;
  border-bottom:1px solid var(--line);position:relative;transition:background .25s,box-shadow .25s;
  background:transparent;text-align:left;
}
.news-item:hover{background:var(--surface);}
.news-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--green);transform:scaleY(0);transform-origin:center;transition:transform .25s;
}
.news-item:hover::before{transform:scaleY(1);}
.news-date{
  font-size:.92rem;color:var(--muted);font-variant-numeric:tabular-nums;
  letter-spacing:.03em;padding:1.6rem 0 1.6rem 1rem;
}
.news-main{display:block;padding:1.6rem 0;color:inherit;text-decoration:none;}
.news-title{
  font-size:1.12rem;font-weight:700;color:var(--ink);display:block;line-height:1.45;
  margin-bottom:.25rem;transition:color .2s;
}
.news-item:hover .news-title{color:var(--green);}
.news-excerpt{
  color:var(--muted);font-size:.92rem;line-height:1.7;display:-webkit-box;
  -webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;max-width:650px;
}
.news-side{display:flex;align-items:center;gap:1.4rem;padding-right:.5rem;white-space:nowrap;}
.news-more{color:var(--green);font-weight:600;font-size:.88rem;display:inline-flex;align-items:center;gap:.3rem;transition:gap .2s;}
.news-more:hover{gap:.7rem;}
.news-empty{
  padding:2.5rem 1rem;border-bottom:1px solid var(--line);color:var(--muted);
  background:#FAF8F4;border-left:1px solid var(--line);
}
@media (max-width:991px){
  .news-item{grid-template-columns:1fr auto;}
  .news-date{padding:.8rem 0 0 1rem;grid-column:1;grid-row:1;}
  .news-main{padding:.2rem .2rem .5rem 1rem;grid-column:1;grid-row:auto;}
  .news-side{grid-column:2;grid-row:1 / 3;padding-right:1rem;justify-content:flex-end;}
  .news-excerpt{-webkit-line-clamp:2;}
}
@media (max-width:575px){
  .news-item{display:block;padding:0 1rem 0 .8rem;}
  .news-date{padding:.8rem 0 .2rem 0;font-size:.82rem;}
  .news-side{justify-content:space-between;padding:.2rem 0 .9rem;}
}

/* pricing */
#pricing{background:#FFFFFF;border-bottom:1px solid var(--line);}
.pricing-primary{
  height:100%;background:var(--dark);color:#fff;border-radius:10px;
  padding:2.3rem 2rem;display:flex;flex-direction:column;justify-content:space-between;
  min-height:360px;border-top:3px solid var(--bronze);
}
.pricing-primary .p-label{color:#CDB398;font-weight:700;letter-spacing:.1em;font-size:.85rem;display:flex;align-items:center;gap:.3rem;}
.pricing-primary h3{color:#fff;font-size:1.8rem;margin:1.5rem 0 .4rem;line-height:1.3;}
.pricing-primary .lead-desc{color:#B8B5AC;font-size:.97rem;margin-bottom:2rem;}
.pricing-features{list-style:none;padding:0;margin:0 0 1.7rem;display:grid;grid-template-columns:1fr 1fr;gap:.7rem 1rem;}
.pricing-features li{color:#D8D6D0;font-size:.92rem;display:flex;gap:.55rem;align-items:center;}
.pricing-features li::before{content:"+";color:var(--bronze);font-weight:800;font-size:1rem;}
.pricing-side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:10px;
  padding:2.1rem 2rem;display:flex;flex-direction:column;justify-content:space-between;
  flex:1;box-shadow:var(--shadow-sm);transition:box-shadow .3s,border-color .3s;
}
.pricing-side-card:hover{box-shadow:var(--shadow-md);border-color:var(--line-deep);}
.pricing-side-card .tag{width:max-content;margin-bottom:1.1rem;}
.pricing-side-card h3{font-size:1.25rem;margin-bottom:.7rem;}
.pricing-side-card p{color:var(--muted);font-size:.95rem;margin-bottom:1.4rem;}
.pricing-side-card .btn{margin-top:auto;min-height:44px;padding:.55rem 1.2rem;font-size:.9rem;}
@media (max-width:991px){
  .pricing-primary{min-height:auto;}
  .pricing-side-card{min-height:220px;margin-top:0;}
}

/* FAQ */
#faq{background:var(--paper);border-bottom:1px solid var(--line);}
.accordion-item{
  background:transparent;border:none;border-bottom:1px solid var(--line);border-radius:0!important;
}
.accordion-button{
  box-shadow:none;background:transparent;border:none;border-radius:0;
  padding:1.4rem 2.6rem 1.2rem 1rem;font-size:1.06rem;font-weight:650;
  color:var(--ink);cursor:pointer;line-height:1.5;text-align:left;position:relative;
}
.accordion-button:hover{color:var(--green);}
.accordion-button:not(.collapsed){color:var(--green);background:transparent;}
.accordion-button::after{display:none;}
.acc-icon{
  position:absolute;right:.6rem;top:50%;transform:translateY(-50%);
  width:24px;height:24px;pointer-events:none;transition:transform .25s;
}
.acc-icon::before,.acc-icon::after{
  content:"";position:absolute;inset:50%;background:var(--ink);transition:background .2s;
  width:14px;height:1.8px;transform:translate(-50%,-50%);
}
.acc-icon::after{width:1.8px;height:14px;transition:transform .25s,background .2s;}
.accordion-button:not(.collapsed) .acc-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.accordion-button:not(.collapsed) .acc-icon::before{background:var(--green);}
.accordion-button:hover .acc-icon::before,.accordion-button:hover .acc-icon::after{background:var(--green);}
.accordion-body{
  padding:.1rem 1rem 1.8rem 0;color:var(--muted);line-height:1.8;max-width:660px;
}

/* cta */
#contact{background:var(--surface);border-bottom:1px solid var(--line);}
.contact-panel{
  border:1px solid var(--line);border-radius:10px;background:#FBF9F5;
  box-shadow:var(--shadow-sm);
}
.contact-col{padding-inline:2rem;padding-block:3rem;}
.contact-intro h2{margin-bottom:1rem;letter-spacing:-.02em;}
.contact-intro p{color:var(--muted);font-size:.97rem;max-width:440px;}
.contact-meta{list-style:none;margin:2rem 0 0;padding:0;display:grid;gap:.8rem;}
.contact-meta li{font-size:.9rem;color:var(--muted);display:flex;gap:.6rem;align-items:center;}
.contact-meta li span{margin-right:.4rem;color:var(--green);font-weight:700;}
.form-control{
  height:52px;border-radius:var(--radius);border:1px solid #CBC5BA;
  font-family:var(--font-sans);font-size:1rem;color:var(--ink);
  padding:.75rem 1rem;background:#fff;transition:border-color .2s,box-shadow .2s;
}
textarea.form-control{height:auto;min-height:110px;resize:vertical;}
.form-control:focus{
  border-color:var(--green);box-shadow:0 0 0 .15rem rgba(31,76,71,.08);background:#fff;outline:0;
}
.form-label{color:var(--muted);font-size:.88rem;font-weight:600;margin-bottom:.4rem;}
.form-note{font-size:.82rem;color:var(--muted);}

/* footer */
.site-footer{background:var(--dark);color:#BDB9B1;padding:96px 0 32px;}
.footer-brandline{
  font-size:clamp(1.8rem,4vw,4.4rem);font-weight:800;color:#F3F0EB;
  line-height:1.1;letter-spacing:-.03em;max-width:12ch;margin-bottom:1rem;
}
.footer-brandline span{color:var(--bronze);}
.footer-desc{color:#9E9B94;max-width:400px;margin-bottom:2.2rem;font-size:.97rem;}
.footer-title{
  font-size:.83rem;font-weight:800;letter-spacing:.1em;color:rgba(255,255,255,.62);
  margin-bottom:1.2rem;text-transform:uppercase;
}
.footer-links{list-style:none;margin:0;padding:0;display:grid;gap:.6rem;}
.footer-links a{color:#BFBBB3;font-size:.92rem;padding:.15rem 0;display:inline-flex;transition:color .2s;}
.footer-links a:hover{color:var(--bronze);}
.footer-verification{
  border-top:1px solid rgba(255,255,255,.1);margin-top:5rem;padding-top:2rem;
  font-size:.8rem;color:#85817B;display:flex;flex-wrap:wrap;gap:1.5rem;justify-content:space-between;
}
.footer-verification span{display:inline-flex;align-items:center;gap:.5rem;}
.footer-verification .badge{
  border:1px solid rgba(255,255,255,.25);color:#C7C3BC;background:transparent;
  font-size:.72rem;letter-spacing:.08em;border-radius:3px;padding:.25rem .7rem;
}
@media (max-width:768px){
  .section{padding:70px 0;}
  .features-sticky{position:static;margin-bottom:1rem;}
  .feature-item{grid-template-columns:44px 1fr;padding:1.5rem 0;}
  .feature-title{font-size:1.15rem;}
}

/* floating cta */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:1050;background:var(--ink);
  color:#fff;display:inline-flex;align-items:center;gap:.5rem;
  padding:.9rem 1.4rem;border-radius:999px;font-size:.9rem;font-weight:600;
  box-shadow:0 8px 30px rgba(0,0,0,.18);border:1px solid var(--green);
  opacity:0;visibility:hidden;transform:translateY(18px);
  transition:opacity .3s,transform .3s,background .2s;
}
.float-cta.is-show{opacity:1;visibility:visible;transform:none;}
.float-cta:hover{background:var(--green-dark);color:#fff;}
.float-cta .pulse{
  width:8px;height:8px;border-radius:50%;background:#7FD4B2;position:relative;
  flex-shrink:0;
}
.float-cta .pulse::after{content:"";position:absolute;inset:-5px;border:1px solid rgba(127,212,178,.4);border-radius:50%;animation:pulse 1.8s infinite;}
@keyframes pulse{0%{transform:scale(.6);opacity:1;}80%,100%{transform:scale(1.6);opacity:0;}}
@media (max-width:767px){
  .float-cta{right:16px;bottom:16px;left:16px;justify-content:center;padding:.8rem 1.2rem;}
}

::-webkit-scrollbar{width:9px;}
::-webkit-scrollbar-track{background:var(--paper);}
::-webkit-scrollbar-thumb{background:#C9C2B7;border-radius:99px;}
::-webkit-scrollbar-thumb:hover{background:var(--bronze);}

@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation:none!important;transition:none!important;}
  [data-reveal]{opacity:1;transform:none;}
}

/* roulang page: article */
:root{
    --paper:#f5f2ec;
    --surface:#ffffff;
    --ink:#1b1c19;
    --muted:#605c54;
    --line:#ddd8ce;
    --brand:#1f4c47;
    --copper:#bd8e66;
    --dark:#141614;
    --dark-text:#f5f2ec;
    --radius-sm:2px;
    --radius:6px;
    --radius-lg:12px;
    --shadow-sm:0 8px 30px rgba(0,0,0,.03);
    --shadow-hover:0 16px 40px rgba(0,0,0,.07);
    --header-h:80px;
    --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
    --font-num:"SF Mono",ui-monospace,"Roboto Mono",monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    margin:0;
    background:var(--paper);
    color:var(--ink);
    font-family:var(--font-sans);
    line-height:1.7;
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
.container-xxl{max-width:1320px}
:focus-visible{outline:2px solid var(--copper);outline-offset:3px;border-radius:2px}

/* ---------- buttons ---------- */
.btn{border-radius:var(--radius-sm);font-weight:600;line-height:1.2;padding:.8rem 1.7rem;letter-spacing:.01em;transition:background .3s ease,border-color .3s ease,box-shadow .3s ease,transform .25s ease}
.btn-primary{background:var(--ink);border-color:var(--ink);color:#fff}
.btn-primary:hover,.btn-primary:focus{background:var(--brand);border-color:var(--brand);color:#fff;transform:translateY(-2px)}
.btn-outline-secondary{background:transparent;border:1px solid var(--line);color:var(--ink)}
.btn-outline-secondary:hover,.btn-outline-secondary:focus{background:rgba(31,76,71,.08);border-color:var(--brand);color:var(--brand)}

/* ---------- header ---------- */
.site-header{
    position:sticky;
    top:0;
    z-index:1080;
    background:rgba(245,242,236,.94);
    border-bottom:1px solid rgba(221,216,206,.9);
    backdrop-filter:blur(10px);
    transition:background .35s ease,box-shadow .35s ease,border-color .35s ease;
}
.site-header.scrolled{
    background:rgba(245,242,236,.98);
    border-bottom-color:var(--line);
    box-shadow:0 8px 30px rgba(0,0,0,.03);
}
.header-inner{height:80px;gap:32px}
.brand{
    display:grid;
    grid-template-columns:auto auto;
    align-items:center;
    column-gap:4px;
    line-height:1.05;
    color:var(--ink);
    font-size:1.28rem;
    font-weight:800;
    letter-spacing:-.01em;
    white-space:nowrap;
}
.brand small{
    grid-column:1 / -1;
    display:block;
    font-size:.68rem;
    font-weight:500;
    color:var(--muted);
    letter-spacing:.05em;
    margin-top:4px;
    white-space:nowrap;
}
.brand-dot{color:var(--copper);font-weight:700}
.site-nav{align-items:center;gap:34px}
.nav-item{
    position:relative;
    display:inline-block;
    padding:8px 0;
    font-size:.95rem;
    font-weight:500;
    color:var(--ink);
    text-decoration:none;
    transition:color .25s ease;
}
.nav-item:after{
    content:"";
    position:absolute;
    left:0;
    bottom:2px;
    width:0;
    height:1px;
    background:var(--brand);
    transition:width .3s ease;
}
.nav-item:hover,.nav-item.active{color:var(--brand)}
.nav-item:hover:after,.nav-item.active:after{width:100%}
.nav-item[aria-current="page"]{color:var(--brand)}
.status-pill{
    display:inline-flex;
    align-items:center;
    gap:8px;
    padding:7px 13px;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:999px;
    color:var(--muted);
    font-size:.82rem;
    font-weight:500;
    white-space:nowrap;
}
.status-dot{
    width:7px;height:7px;
    border-radius:50%;
    background:var(--brand);
    box-shadow:0 0 0 rgba(31,76,71,.5);
    animation:statusPulse 2s ease-out infinite;
}
@keyframes statusPulse{
    0%{box-shadow:0 0 0 0 rgba(31,76,71,.35)}
    70%{box-shadow:0 0 0 7px rgba(31,76,71,0)}
    100%{box-shadow:0 0 0 0 rgba(31,76,71,0)}
}
.header-cta .btn{padding:.62rem 1.2rem;font-size:.9rem}
.nav-toggle{
    display:inline-flex;
    flex-direction:column;
    justify-content:center;
    align-items:center;
    gap:5px;
    width:44px;
    height:44px;
    padding:0;
    background:transparent;
    border:0;
}
.nav-toggle span{
    display:block;
    width:24px;
    height:2px;
    background:var(--ink);
    transition:transform .3s ease,opacity .3s ease;
}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(7px) rotate(45deg)}
body.nav-open .nav-toggle span:nth-child(2){opacity:0}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media (max-width:991.98px){
    .site-nav.d-none.d-lg-flex{
        display:flex !important;
        position:fixed;
        top:0;
        right:0;
        bottom:0;
        width:min(86vw,420px);
        height:100vh;
        height:100dvh;
        background:var(--ink);
        flex-direction:column;
        justify-content:center;
        align-items:flex-start;
        padding:64px 44px 48px;
        gap:26px;
        transform:translateX(100%);
        transition:transform .28s ease;
        box-shadow:-18px 0 40px rgba(0,0,0,.16);
        overflow-y:auto;
        z-index:1080;
    }
    body.nav-open .site-nav{
        transform:none;
    }
    .site-nav .nav-item{
        color:var(--dark-text);
        font-size:1.5rem;
        font-weight:600;
        opacity:.85;
    }
    .site-nav .nav-item:hover,
    .site-nav .nav-item.active,
    .site-nav .nav-item[aria-current="page"]{opacity:1;color:var(--copper)}
    .site-nav .nav-item:after{display:none}
}

/* ---------- article hero ---------- */
.post-hero{
    position:relative;
    padding:52px 0 44px;
    background:var(--surface);
    border-bottom:1px solid var(--line);
    overflow:hidden;
}
.post-hero .container-xxl{position:relative;z-index:2}
.post-hero-bg{
    position:absolute;
    inset:0;
    width:100%;
    height:100%;
    object-fit:cover;
    opacity:.12;
}
.breadcrumb-bar{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    gap:8px;
    font-size:.86rem;
    color:var(--muted);
    margin-bottom:34px;
}
.breadcrumb-bar a{color:var(--muted);transition:color .2s ease;border-bottom:1px solid transparent}
.breadcrumb-bar a:hover{color:var(--brand);border-bottom-color:rgba(31,76,71,.3)}
.breadcrumb-bar .sep{color:var(--line)}
.breadcrumb-bar .current{color:var(--ink);font-weight:500}
.article-eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:.78rem;
    letter-spacing:.08em;
    color:var(--brand);
    background:rgba(31,76,71,.07);
    border:1px solid rgba(31,76,71,.14);
    padding:4px 13px;
    border-radius:999px;
    margin-bottom:18px;
}
.post-title{
    font-size:clamp(1.9rem,3.4vw,3.15rem);
    line-height:1.16;
    font-weight:800;
    letter-spacing:-.02em;
    margin:0 0 22px;
    max-width:1000px;
}
.post-meta{
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    column-gap:16px;
    row-gap:10px;
    color:var(--muted);
    font-size:.88rem;
}
.post-meta a{color:var(--muted);transition:color .2s ease}
.post-meta a:hover{color:var(--brand)}
.meta-dot{width:3px;height:3px;border-radius:50%;background:var(--line)}
.meta-date{font-variant-numeric:tabular-nums}

/* ---------- article body ---------- */
.article-section{
    padding:56px 0 24px;
    background:var(--paper);
}
.article-shell{
    max-width:760px;
    margin:0 auto;
    padding:0 24px;
}
.article-body{
    font-size:17px;
    line-height:1.9;
    color:#302f2b;
    word-break:break-word;
}
.article-body p{
    margin:0 0 1.5em;
    line-height:1.95;
}
.article-body h1,
.article-body h2,
.article-body h3,
.article-body h4{
    color:var(--ink);
    font-weight:800;
    letter-spacing:-.01em;
    margin-top:0;
}
.post-title + .article-body h2{margin-top:0}
.article-body h2{
    font-size:1.7rem;
    line-height:1.3;
    margin-top:64px;
    margin-bottom:22px;
}
.article-body h3{
    font-size:1.25rem;
    line-height:1.4;
    margin-top:32px;
    margin-bottom:14px;
}
.article-body ul,
.article-body ol{
    margin:0 0 1.6em;
    padding-left:1.35em;
}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.45em}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(31,76,71,.25);transition:border-color .2s ease}
.article-body a:hover{border-bottom-color:var(--brand)}
.article-body img,.article-body figure img{
    margin:40px auto 0;
    width:100%;
    border-radius:var(--radius-lg);
    box-shadow:var(--shadow-sm);
}
.article-body figure{
    margin:44px 0 0;
}
.article-body figcaption{
    margin:14px 0 0;
    padding:14px 0 0;
    color:var(--muted);
    font-size:.85rem;
    line-height:1.6;
    border-bottom:1px solid var(--line);
}
.article-body blockquote{
    margin:40px 0;
    padding:18px 24px 18px 28px;
    background:rgba(255,255,255,.6);
    border-left:4px solid var(--brand);
    border-radius:0 var(--radius) var(--radius) 0;
    color:var(--ink);
}
.article-body blockquote p{margin-bottom:.8em}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body pre,
.article-body code{
    background:#eceae4;
    border:1px solid var(--line);
    border-radius:4px;
    font-size:.9rem;
    color:#2c2e28;
}
.article-body code{padding:.1em .35em}
.article-body pre{padding:18px;overflow-x:auto}
.article-body pre code{background:transparent;border:0;padding:0}
.article-body hr{
    margin:52px 0;
    border:0;
    height:1px;
    background:var(--line);
}
@media (max-width:767.98px){
    .article-section{padding:36px 0 16px}
    .article-body h2{margin-top:42px;font-size:1.4rem}
}

/* ---------- missing article ---------- */
.page-missing{
    padding:110px 24px 130px;
    text-align:left;
}
.page-missing h1{
    font-size:clamp(1.7rem,3vw,2.4rem);
    font-weight:800;
    letter-spacing:-.01em;
}
.missing-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:46px 40px;
    max-width:680px;
    box-shadow:var(--shadow-sm);
}
.missing-card p{color:var(--muted);margin:18px 0 28px}

/* ---------- extras / related ---------- */
.article-extras{
    background:var(--paper);
    padding:24px 0 88px;
}
.extras-head{
    display:flex;
    flex-wrap:wrap;
    align-items:flex-end;
    justify-content:space-between;
    gap:16px;
    border-bottom:1px solid var(--line);
    padding-bottom:22px;
    margin-bottom:8px;
}
.extras-kicker{
    font-size:.78rem;
    letter-spacing:.12em;
    color:var(--copper);
    margin-bottom:8px;
}
.extras-title{
    font-size:1.7rem;
    font-weight:800;
    letter-spacing:-.01em;
    margin:0;
}
.extras-more{color:var(--muted);font-size:.88rem}
.extras-more a{color:var(--ink);font-weight:500;border-bottom:1px solid var(--line)}
.extras-more a:hover{color:var(--brand)}
.related-list{
    border-bottom:1px solid var(--line);
    margin-top:32px;
}
.related-row{
    display:grid;
    grid-template-columns:56px 1fr auto;
    gap:24px;
    align-items:center;
    padding:30px 0;
    border-top:1px solid var(--line);
    transition:padding-left .3s ease,background .3s ease;
}
.related-row:hover{
    padding-left:14px;
    background:#faf8f3;
}
.related-index{
    font-family:var(--font-num);
    font-size:1.1rem;
    color:var(--copper);
    letter-spacing:.04em;
}
.related-title{
    font-size:1.14rem;
    font-weight:700;
    margin:0 0 7px;
}
.related-title a{color:var(--ink);transition:color .2s ease}
.related-title a:hover{color:var(--brand)}
.related-desc{
    font-size:.9rem;
    color:var(--muted);
    margin:0;
    line-height:1.65;
}
.related-arrow{
    font-size:.92rem;
    color:var(--ink);
    font-weight:600;
    white-space:nowrap;
}
.related-arrow i{
    display:inline-block;
    transition:transform .25s ease;
}
.related-row:hover .related-arrow i{transform:translateX(5px)}
@media (max-width:767.98px){
    .related-row{grid-template-columns:1fr;gap:12px;padding:22px 0}
    .related-row:hover{padding-left:8px}
    .related-index{display:none}
    .related-arrow{justify-self:start}
}

/* ---------- footer ---------- */
.site-footer{
    background:var(--dark);
    color:#c9c8c1;
    padding:72px 0 0;
}
.footer-brandline{
    font-size:clamp(1.9rem,3.6vw,2.7rem);
    font-weight:800;
    color:var(--dark-text);
    margin:0 0 16px;
    letter-spacing:-.01em;
}
.footer-brandline span{color:var(--copper)}
.footer-desc{
    color:#a7a69e;
    max-width:480px;
    font-size:.95rem;
    margin:0 0 28px;
    line-height:1.8;
}
.footer-title{
    font-size:.86rem;
    font-weight:700;
    color:var(--dark-text);
    margin-bottom:20px;
    letter-spacing:.08em;
}
.footer-links li{margin-bottom:12px}
.footer-links a{
    color:#a7a69e;
    font-size:.9rem;
    line-height:1.5;
    transition:color .2s ease;
    border-bottom:1px solid transparent;
}
.footer-links a:hover{color:var(--dark-text);border-bottom-color:rgba(189,142,102,.6)}
.footer-verification{
    margin-top:52px;
    border-top:1px solid rgba(255,255,255,.08);
    padding:22px 0 26px;
    display:flex;
    flex-wrap:wrap;
    align-items:center;
    justify-content:space-between;
    gap:10px;
    font-size:.82rem;
    color:#8d8c84;
}
.footer-verification .badge{
    background:transparent;
    border:1px solid rgba(255,255,255,.16);
    color:#c9c8c1;
    font-weight:500;
    padding:5px 12px;
    border-radius:999px;
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
    .site-nav{gap:22px}
}
@media (max-width:991.98px){
    .header-inner{height:64px}
    .status-pill,.header-cta{display:none}
    .post-hero{padding:40px 0 36px}
}
@media (max-width:575.98px){
    .article-shell{padding:0 18px}
    .post-title{font-size:1.75rem}
    .article-body{font-size:16px}
    .missing-card{padding:32px 22px}
    .footer-verification{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
    *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --paper:#F5F2EC;
  --surface:#FFFFFF;
  --carbon:#1B1C19;
  --ink:#23231F;
  --warm-gray:#605C54;
  --pine:#1F4C47;
  --copper:#BD8E66;
  --border:#DDD8CE;
  --line:#CBC5BA;
  --deep:#141614;
  --radius:6px;
  --radius-lg:12px;
  --shadow-sm:0 8px 30px rgba(0,0,0,.03);
  --shadow-hover:0 16px 40px rgba(0,0,0,.07);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}

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

html{
  scroll-behavior:smooth;
}

body{
  margin:0;
  background:var(--paper);
  color:var(--carbon);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

p{
  margin-bottom:0;
}

a{
  color:inherit;
  text-decoration:none;
  transition:color .25s ease;
}

a:hover{
  color:var(--pine);
}

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

button{
  font-family:inherit;
}

ul,
ol{
  padding-left:0;
  margin-bottom:0;
}

::selection{
  background:var(--pine);
  color:#F5F2EC;
}

:focus-visible{
  outline:2px solid var(--copper);
  outline-offset:3px;
}

h1,h2,h3,h4,h5,h6{
  margin:0;
  color:var(--ink);
  line-height:1.2;
  font-weight:750;
  letter-spacing:-0.01em;
}

/* buttons */
.btn{
  height:52px;
  padding:0 1.9em;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:.55em;
  border-radius:3px;
  border:1px solid transparent;
  font-weight:600;
  font-size:.98rem;
  letter-spacing:.02em;
  line-height:1;
  transition:background .3s ease,border-color .3s ease,color .3s ease,transform .3s ease,box-shadow .3s ease;
}

.btn:hover{
  transform:translateY(-1px);
}

.btn:disabled,
.btn.disabled{
  opacity:.55;
  transform:none;
  box-shadow:none;
}

.btn-primary{
  background:var(--carbon);
  border-color:var(--carbon);
  color:#F5F2EC;
}

.btn-primary:hover,
.btn-primary:focus{
  background:var(--pine);
  border-color:var(--pine);
  color:#fff;
}

.btn-light{
  background:#F5F2EC;
  border-color:#F5F2EC;
  color:var(--carbon);
}

.btn-light:hover,
.btn-light:focus{
  background:#fff;
  border-color:#fff;
  color:var(--pine);
}

.btn-outline-light{
  border-color:rgba(245,242,236,.55);
  color:#F5F2EC;
}

.btn-outline-light:hover,
.btn-outline-light:focus{
  background:rgba(245,242,236,.1);
  border-color:#F5F2EC;
  color:#fff;
}

.text-arrow{
  display:inline-flex;
  align-items:center;
  gap:.45rem;
  font-weight:600;
  color:var(--ink);
  line-height:1;
}

.text-arrow .arrow-ic{
  display:inline-flex;
  transition:transform .3s ease;
}

.text-arrow:hover .arrow-ic{
  transform:translateX(4px);
}

/* header */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:1050;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background .35s ease,border-color .35s ease,padding .35s ease;
}

.header-inner{
  min-height:80px;
  transition:min-height .35s ease;
}

.site-header.is-scrolled{
  background:rgba(245,242,236,.93);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--border);
}

.site-header.is-scrolled .header-inner{
  min-height:64px;
}

.brand{
  display:inline-block;
  font-size:1.28rem;
  font-weight:850;
  letter-spacing:.01em;
  line-height:1.1;
  color:var(--carbon);
  position:relative;
  z-index:1032;
  white-space:nowrap;
}

.brand .brand-dot{
  color:var(--copper);
  margin-left:1px;
}

.brand small{
  display:block;
  font-size:.62rem;
  font-weight:500;
  letter-spacing:.22em;
  color:inherit;
  opacity:.72;
  margin-top:4px;
}

.site-nav{
  align-items:center;
  gap:clamp(1.4rem,2.2vw,2.6rem);
}

.site-nav .nav-item{
  position:relative;
  padding:8px 2px;
  font-size:.94rem;
  font-weight:600;
  color:var(--carbon);
  opacity:.82;
  transition:opacity .25s ease,color .25s ease;
}

.site-nav .nav-item::after{
  content:"";
  position:absolute;
  left:0;
  bottom:2px;
  width:100%;
  height:1px;
  background:var(--copper);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .35s ease;
}

.site-nav .nav-item:hover{
  color:var(--pine);
  opacity:1;
}

.site-nav .nav-item.active{
  color:var(--pine);
  opacity:1;
}

.site-nav .nav-item.active::after{
  transform:scaleX(1);
}

.status-pill{
  display:inline-flex;
  align-items:center;
  gap:.5rem;
  padding:.42rem .9rem;
  border:1px solid var(--border);
  border-radius:999px;
  background:rgba(255,255,255,.55);
  font-size:.8rem;
  font-weight:600;
  color:var(--carbon);
  letter-spacing:.02em;
  font-variant-numeric:tabular-nums;
}

.status-dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--pine);
  box-shadow:0 0 0 0 rgba(31,76,71,.3);
  animation:pulse 2.6s infinite;
}

@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(31,76,71,.3);}
  70%{box-shadow:0 0 0 8px rgba(31,76,71,0);}
  100%{box-shadow:0 0 0 0 rgba(31,76,71,0);}
}

.header-cta .btn{
  height:42px;
  padding:0 1.3rem;
  font-size:.9rem;
}

.site-header:not(.is-scrolled) .brand,
.site-header:not(.is-scrolled) .nav-item,
.site-header:not(.is-scrolled) .nav-toggle span{
  color:#F5F2EC;
}

.site-header:not(.is-scrolled) .status-pill{
  color:#F5F2EC;
  border-color:rgba(245,242,236,.3);
  background:transparent;
}

.site-header:not(.is-scrolled) .header-cta .btn-primary{
  background:#F5F2EC;
  border-color:#F5F2EC;
  color:var(--carbon);
}

.site-header:not(.is-scrolled) .header-cta .btn-primary:hover{
  background:#fff;
  border-color:#fff;
  color:var(--pine);
}

.nav-toggle{
  display:inline-flex;
  width:44px;
  height:44px;
  padding:0;
  border:0;
  background:transparent;
  position:relative;
  z-index:1032;
}

.nav-toggle span{
  position:absolute;
  left:11px;
  right:11px;
  top:50%;
  height:1.5px;
  background:var(--carbon);
  display:block;
  transition:transform .35s ease,opacity .35s ease,background .35s ease;
}

.nav-toggle span:nth-child(1){
  transform:translateY(-7px);
}

.nav-toggle span:nth-child(2){
  transform:translateY(0);
}

.nav-toggle span:nth-child(3){
  transform:translateY(7px);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1){
  transform:translateY(0) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2){
  opacity:0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3){
  transform:translateY(0) rotate(-45deg);
}

@media (max-width:991.98px){
  .site-header.nav-open .site-nav{
    display:flex !important;
    flex-direction:column;
    justify-content:flex-start;
    align-items:flex-start;
    position:fixed;
    inset:0;
    background:var(--carbon);
    padding:110px 8vw 48px;
    overflow:auto;
    z-index:1031;
  }

  .site-header.nav-open .site-nav .nav-item{
    font-size:1.9rem;
    font-weight:700;
    padding:1rem 0;
    color:#F5F2EC;
    opacity:.9;
    width:auto;
  }

  .site-header.nav-open .site-nav .nav-item.active{
    color:var(--copper);
  }

  .site-header.nav-open .site-nav .nav-item::after{
    display:none;
  }

  .site-header.nav-open .brand{
    color:#F5F2EC;
  }

  .nav-toggle span{
    background:var(--carbon);
  }

  .site-header.is-scrolled .nav-toggle span{
    background:var(--carbon);
  }
}

/* page hero */
.page-hero{
  position:relative;
  isolation:isolate;
  padding:170px 0 90px;
  background-color:var(--deep);
  background-image:url('/assets/images/backpic/back-1.webp');
  background-position:center;
  background-size:cover;
  color:#F5F2EC;
}

.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  z-index:-1;
  background:linear-gradient(100deg,rgba(20,22,20,.88) 0%,rgba(20,22,20,.68) 55%,rgba(20,22,20,.35) 100%);
}

.page-hero::after{
  content:"kaiyun";
  position:absolute;
  right:4vw;
  bottom:-1.2rem;
  z-index:-1;
  font-size:clamp(7rem,18vw,15rem);
  font-weight:850;
  line-height:1;
  color:rgba(245,242,236,.045);
  user-select:none;
  pointer-events:none;
}

.breadcrumb-wrap{
  margin-bottom:80px;
}

.breadcrumb{
  display:inline-flex;
  flex-wrap:wrap;
  padding:.7rem 1rem;
  background:rgba(20,22,20,.35);
  border:1px solid rgba(245,242,236,.14);
  border-radius:999px;
  color:rgba(245,242,236,.58);
  font-size:.82rem;
}

.breadcrumb li{
  display:inline-flex;
  align-items:center;
}

.breadcrumb li + li::before{
  content:"/";
  margin:0 .7rem;
  color:rgba(245,242,236,.35);
}

.breadcrumb a{
  color:rgba(245,242,236,.8);
}

.breadcrumb a:hover{
  color:var(--copper);
}

.page-hero-title{
  max-width:900px;
  font-size:clamp(2.7rem,5vw,4.4rem);
  font-weight:800;
  line-height:1.1;
  letter-spacing:-.03em;
  color:#F5F2EC;
}

.page-hero-title .hero-mark{
  color:var(--copper);
}

.page-hero-lead{
  max-width:720px;
  margin-top:24px;
  color:rgba(245,242,236,.85);
  font-size:1.1rem;
  line-height:1.9;
}

.hero-tags{
  display:flex;
  flex-wrap:wrap;
  gap:.7rem;
  margin-top:26px;
}

.hero-tags span{
  display:inline-flex;
  align-items:center;
  gap:.35rem;
  padding:.45rem .9rem;
  border-radius:999px;
  border:1px solid rgba(245,242,236,.2);
  color:rgba(245,242,236,.78);
  font-size:.82rem;
  line-height:1;
}

.hero-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-top:40px;
}

/* main */
.page-section{
  padding:clamp(4rem,7.5vw,6.5rem) 0;
}

.outline-section{
  background:var(--paper);
}

.surface-tint{
  background:#ECE9E2;
}

.section-label{
  display:flex;
  align-items:center;
  gap:.65rem;
  font-size:.78rem;
  font-weight:650;
  letter-spacing:.14em;
  color:var(--warm-gray);
  margin-bottom:18px;
}

.section-label .label-line{
  width:34px;
  height:1px;
  background:var(--copper);
  display:inline-block;
}

.section-title{
  font-size:clamp(2rem,3.5vw,3rem);
  font-weight:780;
  color:var(--ink);
  margin-bottom:22px;
  letter-spacing:-.02em;
}

.section-desc{
  color:var(--warm-gray);
  font-size:1.02rem;
  max-width:420px;
}

.outline-sticky{
  position:sticky;
  top:130px;
}

.entry-list{
  border-top:1px solid var(--border);
}

.entry-item{
  position:relative;
  display:grid;
  grid-template-columns:56px 1fr auto;
  gap:22px;
  align-items:center;
  border-bottom:1px solid var(--border);
  padding:34px 8px;
  transition:background .3s ease,padding-left .3s ease;
}

.entry-item::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:var(--pine);
  transform:scaleY(0);
  transform-origin:center;
  transition:transform .35s ease;
}

.entry-item:hover{
  background:rgba(255,255,255,.5);
  padding-left:18px;
}

.entry-item:hover::before{
  transform:scaleY(1);
}

.entry-index{
  font-size:1.1rem;
  font-weight:600;
  color:var(--copper);
  letter-spacing:.08em;
}

.entry-item h3{
  font-size:1.35rem;
  margin-bottom:8px;
  display:flex;
  align-items:center;
  gap:12px;
}

.entry-item p{
  color:var(--warm-gray);
  max-width:660px;
  line-height:1.75;
}

.entry-link{
  width:44px;
  height:44px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--border);
  border-radius:50%;
  color:var(--carbon);
  background:var(--surface);
  transition:all .3s ease;
}

.entry-link:hover{
  background:var(--pine);
  border-color:var(--pine);
  color:#fff;
  transform:translateX(4px);
}

.entry-link svg{
  width:16px;
  height:16px;
}

@media (max-width:767.98px){
  .entry-item{
    grid-template-columns:42px 1fr;
    gap:14px;
    padding:26px 2px;
  }

  .entry-link{
    display:none;
  }
}

/* gallery rows */
.showcase-section{
  background:var(--surface);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}

.feature-rows{
  display:flex;
  flex-direction:column;
  gap:clamp(4rem,7vw,6rem);
}

.feature-row .row{
  align-items:center;
}

.feature-kicker{
  font-size:.8rem;
  font-weight:650;
  letter-spacing:.14em;
  color:var(--copper);
  margin-bottom:20px;
}

.feature-row h2{
  font-size:clamp(1.7rem,2.5vw,2.5rem);
  margin-bottom:20px;
}

.feature-row p{
  color:var(--warm-gray);
  line-height:1.9;
  margin-bottom:24px;
}

.cover-frame{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  background:#ECE9E2;
  box-shadow:var(--shadow-sm);
}

.cover-frame img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .75s cubic-bezier(.2,.7,.2,1);
}

.cover-frame:hover img{
  transform:scale(1.03);
}

.aspect-16-9{
  aspect-ratio:16/9;
}

.aspect-4-3{
  aspect-ratio:4/3;
}

.feature-note{
  margin-top:14px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  border-top:1px solid var(--border);
  padding-top:16px;
  color:var(--warm-gray);
  font-size:.88rem;
}

/* route */
.route-section{
  background:var(--paper);
}

.route-item{
  position:relative;
  border-top:1px solid var(--border);
  padding:36px 0 0;
  margin-top:36px;
}

.route-item::before{
  content:"";
  position:absolute;
  left:0;
  top:-1px;
  width:60px;
  height:3px;
  background:var(--pine);
}

.route-item .step-no{
  font-size:.9rem;
  font-weight:650;
  color:var(--copper);
  letter-spacing:.12em;
}

.route-item .step-title{
  font-size:1.45rem;
  margin:16px 0 10px;
}

.route-item .step-desc{
  color:var(--warm-gray);
  font-size:.98rem;
}

@media (max-width:991.98px){
  .route-item{
    min-height:0;
  }
}

/* dark notes */
.notes-section{
  background:var(--deep);
  color:rgba(245,242,236,.82);
  padding:clamp(4rem,7vw,6rem) 0;
}

.notes-section .section-label{
  color:var(--copper);
}

.notes-section .section-title{
  color:#F5F2EC;
}

.notes-section .section-desc{
  color:rgba(245,242,236,.66);
  max-width:520px;
}

.notes-section .section-title{
  margin-bottom:18px;
}

.notes-list{
  margin-top:30px;
  list-style:none;
}

.notes-list li{
  position:relative;
  padding:.55rem 0 .55rem 1.6rem;
  color:rgba(245,242,236,.75);
  border-bottom:1px solid rgba(245,242,236,.08);
}

.notes-list li:last-child{
  border-bottom:0;
}

.notes-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:1.1rem;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--copper);
}

.metrics{
  display:flex;
  flex-wrap:wrap;
  border:1px solid rgba(245,242,236,.16);
  border-radius:var(--radius-lg);
  background:rgba(255,255,255,.02);
  padding:28px 12px;
}

.metric{
  flex:1 1 170px;
  padding:0 26px;
  border-left:1px solid rgba(245,242,236,.12);
}

.metric:first-child{
  border-left:0;
}

.metric .metric-num{
  font-size:clamp(2.2rem,3vw,3.4rem);
  font-weight:820;
  color:#F5F2EC;
  line-height:1;
  letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;
}

.metric .metric-label{
  margin-top:12px;
  color:rgba(245,242,236,.58);
  font-size:.9rem;
  letter-spacing:.04em;
}

@media (max-width:767.98px){
  .metric{
    flex-basis:100%;
    padding:18px 0;
    border-left:0;
    border-top:1px solid rgba(245,242,236,.1);
  }

  .metric:first-child{
    border-top:0;
  }
}

/* faq */
.faq-section{
  background:var(--surface);
  border-top:1px solid var(--border);
}

.faq-head{
  position:sticky;
  top:130px;
}

.faq-wrap{
  margin-top:14px;
}

.accordion-item{
  background:transparent;
  border:0;
  border-bottom:1px solid var(--border);
}

.accordion-item:first-child{
  border-top:1px solid var(--border);
}

.accordion-button{
  background:transparent;
  box-shadow:none;
  font-size:1.13rem;
  font-weight:650;
  color:var(--ink);
  padding:1.45rem 0;
  letter-spacing:-.01em;
  border:0;
  transition:color .3s ease;
}

.accordion-button:not(.collapsed){
  background:transparent;
  color:var(--pine);
}

.accordion-button::after{
  content:"+";
  background-image:none !important;
  width:30px;
  height:30px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:400;
  font-size:1.5rem;
  line-height:1;
  color:var(--carbon);
  transition:transform .3s ease,color .3s ease;
}

.accordion-button:not(.collapsed)::after{
  background-image:none !important;
  color:var(--pine);
  transform:rotate(45deg);
}

.accordion-button:focus{
  box-shadow:none;
  border-color:var(--border);
}

.accordion-body{
  padding:0 42px 28px 0;
  color:var(--warm-gray);
  line-height:1.85;
}

.accordion-button-left{
  width:3px;
  height:auto;
  background:var(--pine);
  opacity:0;
}

.accordion-item .accordion-button:not(.collapsed)::before{
  content:"";
  position:absolute;
  left:0;
  top:1.45rem;
  bottom:1.45rem;
  width:2px;
  background:var(--pine);
}

.accordion-button{
  position:relative;
}

@media (max-width:991.98px){
  .faq-head{
    position:static;
    margin-bottom:40px;
  }
}

/* contact */
.contact-section{
  background:var(--paper);
  border-top:1px solid var(--border);
}

.contact-media{
  padding-right:2rem;
}

.contact-card{
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:clamp(1.9rem,3vw,2.8rem);
}

.contact-info-item{
  display:grid;
  grid-template-columns:40px 1fr;
  gap:16px;
  align-items:start;
  padding:20px 0;
  border-bottom:1px solid var(--border);
}

.contact-info-item:first-of-type{
  border-top:1px solid var(--border);
  margin-top:30px;
}

.contact-info-item .contact-ic{
  width:38px;
  height:38px;
  display:flex;
  align-items:center;
  justify-content:center;
  border:1px solid var(--border);
  border-radius:50%;
  color:var(--pine);
  background:var(--paper);
}

.contact-info-item h3{
  font-size:1.05rem;
  margin-bottom:7px;
}

.contact-info-item p{
  color:var(--warm-gray);
  font-size:.95rem;
}

.form-label{
  color:var(--warm-gray);
  font-size:.88rem;
  font-weight:600;
  letter-spacing:.02em;
}

.form-control{
  height:52px;
  border:1px solid var(--line);
  border-radius:5px;
  background:#fff;
  color:var(--ink);
  padding:.65rem 1rem;
  font-family:inherit;
  font-size:1rem;
  transition:border-color .3s ease,box-shadow .3s ease;
}

.form-control:focus{
  border-color:var(--pine);
  box-shadow:0 0 0 3px rgba(31,76,71,.12);
  color:var(--ink);
  background:#fff;
}

.form-control::placeholder{
  color:#A39C90;
}

select.form-control{
  cursor:pointer;
}

.contact-card .btn{
  width:100%;
  margin-top:10px;
}

/* footer */
.site-footer{
  background:var(--carbon);
  color:rgba(245,242,236,.72);
  padding:72px 0 0;
  margin-top:0;
}

.footer-brandline{
  font-size:clamp(1.6rem,2.6vw,2.2rem);
  font-weight:850;
  color:#F5F2EC;
  line-height:1.2;
  letter-spacing:-.01em;
}

.footer-brandline span{
  color:var(--copper);
}

.footer-desc{
  margin-top:18px;
  max-width:520px;
  color:rgba(245,242,236,.6);
  line-height:1.85;
  font-size:.96rem;
}

.footer-title{
  font-size:.82rem;
  font-weight:650;
  letter-spacing:.12em;
  color:rgba(245,242,236,.42);
  margin-bottom:23px;
}

.footer-links li{
  margin-bottom:12px;
}

.footer-links a{
  color:rgba(245,242,236,.72);
  font-size:.95rem;
  transition:color .25s ease,padding-left .25s ease;
}

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

.footer-verification{
  margin-top:48px;
  border-top:1px solid rgba(245,242,236,.1);
  padding:24px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  color:rgba(245,242,236,.42);
  font-size:.84rem;
}

.footer-verification .badge{
  border:1px solid rgba(245,242,236,.16);
  color:rgba(245,242,236,.55);
  font-weight:500;
  border-radius:999px;
  padding:.4rem .9rem;
  background:transparent;
}

@media (max-width:575.98px){
  .footer-verification{
    flex-direction:column;
    align-items:flex-start;
  }
}

/* reveal */
.animate-on-scroll{
  opacity:0;
  transform:translateY(16px);
  transition:opacity .65s ease,transform .65s ease;
}

.animate-on-scroll.visible{
  opacity:1;
  transform:none;
}

@media (prefers-reduced-motion:reduce){
  *,
  *::before,
  *::after{
    animation:none !important;
    transition:none !important;
  }

  html{
    scroll-behavior:auto;
  }

  .animate-on-scroll{
    opacity:1;
    transform:none;
  }
}

/* roulang page: category2 */
:root {
            --paper: #F5F2EC;
            --surface: #FFFFFF;
            --ink: #1B1C19;
            --muted: #605C54;
            --pine: #1F4C47;
            --copper: #BD8E66;
            --line: #DDD8CE;
            --dark: #141614;
            --dark-soft: #1B201C;
            --radius-sm: 3px;
            --radius: 6px;
            --radius-lg: 12px;
            --shadow: 0 10px 30px rgba(0, 0, 0, 0.04);
            --shadow-up: 0 20px 46px rgba(0, 0, 0, 0.08);
            --gap: 64px;
            --ease: cubic-bezier(.22, .8, .32, 1);
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
            scroll-padding-top: 110px;
        }
        body {
            margin: 0;
            font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", -apple-system, BlinkMacSystemFont, sans-serif;
            background: var(--paper);
            color: var(--ink);
            font-size: 17px;
            line-height: 1.8;
            -webkit-font-smoothing: antialiased;
        }
        a {
            color: inherit;
            text-decoration: none;
        }
        img {
            max-width: 100%;
            display: block;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            margin-top: 0;
            line-height: 1.2;
            font-weight: 700;
        }
        h1 {
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 20px;
        }
        h2 {
            font-size: clamp(2rem, 3.5vw, 3.2rem);
            letter-spacing: -0.01em;
            margin-bottom: 22px;
        }
        h3 {
            font-size: 1.2rem;
            margin-bottom: 12px;
        }
        p {
            margin-top: 0;
            margin-bottom: 1rem;
        }
        .container-xxl {
            max-width: 1320px;
        }
        .btn {
            border-radius: var(--radius-sm);
            font-weight: 600;
            letter-spacing: 0.02em;
            transition: background .3s var(--ease), border-color .3s var(--ease), color .3s var(--ease), transform .3s var(--ease);
            min-height: 48px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 0 1.9rem;
            font-size: 1rem;
        }
        .btn-primary {
            background: var(--ink);
            border: 1px solid var(--ink);
            color: #fff;
        }
        .btn-primary:hover,
        .btn-primary:focus {
            background: var(--pine);
            border-color: var(--pine);
            color: #fff;
        }
        .btn-outline-light {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, .68);
            color: #fff;
        }
        .btn-outline-light:hover,
        .btn-outline-light:focus {
            background: rgba(255, 255, 255, .12);
            color: #fff;
            border-color: #fff;
        }
        .btn:focus-visible,
        .nav-toggle:focus-visible,
        .accordion-button:focus-visible {
            outline: 2px solid var(--copper);
            outline-offset: 2px;
            box-shadow: none;
        }
        .section {
            padding: 100px 0;
        }
        .section-soft {
            background: #FBF9F4;
        }
        .section-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: .8rem;
            font-weight: 600;
            letter-spacing: .12em;
            color: var(--pine);
            text-transform: uppercase;
            margin-bottom: 24px;
        }
        .section-tag::before {
            content: "";
            width: 8px;
            height: 8px;
            background: var(--copper);
            border-radius: 50%;
            display: block;
        }
        .section-number {
            font-size: clamp(4rem, 8vw, 7rem);
            font-weight: 200;
            line-height: 1;
            color: rgba(27, 28, 25, .1);
            position: absolute;
            left: -10px;
            top: -44px;
            user-select: none;
            pointer-events: none;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            background: var(--surface);
            border-bottom: 1px solid transparent;
            transition: background .35s var(--ease), border-color .35s var(--ease), box-shadow .35s var(--ease);
        }
        .site-header.scrolled {
            border-bottom-color: var(--line);
            box-shadow: 0 8px 28px rgba(0, 0, 0, .05);
        }
        .header-inner {
            height: 80px;
            min-height: 80px;
            transition: height .35s var(--ease), min-height .35s var(--ease);
        }
        .site-header.scrolled .header-inner {
            height: 64px;
            min-height: 64px;
        }
        .brand {
            display: flex;
            flex-direction: column;
            line-height: 1.1;
            font-weight: 800;
            font-size: 1.16rem;
            color: var(--ink);
            gap: 3px;
            letter-spacing: .01em;
            white-space: nowrap;
        }
        .brand .brand-dot {
            color: var(--copper);
        }
        .brand small {
            font-size: .66rem;
            font-weight: 500;
            letter-spacing: .08em;
            color: var(--muted);
            text-transform: uppercase;
        }
        .site-nav {
            display: flex;
            align-items: center;
            gap: 2.4rem;
            margin-left: auto;
        }
        .nav-item {
            position: relative;
            font-size: .95rem;
            font-weight: 600;
            color: var(--muted);
            padding: 8px 2px;
            transition: color .3s var(--ease);
        }
        .nav-item::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 0;
            height: 2px;
            background: var(--pine);
            transition: width .3s var(--ease);
        }
        .nav-item:hover,
        .nav-item:focus-visible {
            color: var(--ink);
        }
        .nav-item:hover::after,
        .nav-item:focus-visible::after {
            width: 100%;
        }
        .nav-item.active {
            color: var(--ink);
        }
        .nav-item.active::after {
            width: 100%;
        }
        .status-pill {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            border: 1px solid var(--line);
            border-radius: 999px;
            font-size: .8rem;
            font-weight: 600;
            color: var(--pine);
            padding: 5px 14px;
            white-space: nowrap;
            background: var(--surface);
        }
        .status-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--pine);
            position: relative;
        }
        .status-dot::before {
            content: "";
            position: absolute;
            inset: -4px;
            border-radius: 50%;
            border: 1px solid rgba(31, 76, 71, .4);
            animation: pulse 2s infinite;
        }
        @keyframes pulse {
            0% {
                transform: scale(.8);
                opacity: .8;
            }
            70% {
                transform: scale(1.6);
                opacity: 0;
            }
            100% {
                opacity: 0;
            }
        }
        .header-cta .btn {
            min-height: 42px;
            padding: 0 1.3rem;
            font-size: .9rem;
        }
        .nav-toggle {
            background: none;
            border: 0;
            width: 40px;
            height: 40px;
            padding: 6px;
            margin-left: 12px;
            position: relative;
            z-index: 1060;
        }
        .nav-toggle span {
            display: block;
            height: 2px;
            width: 22px;
            background: var(--ink);
            margin: 5px auto;
            transition: transform .3s var(--ease), opacity .2s var(--ease);
            border-radius: 2px;
        }
        .nav-toggle.is-open span {
            background: #F5F2EC;
        }
        .nav-toggle.is-open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.is-open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.is-open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }
        @media (max-width: 991.98px) {
            .site-header .header-inner {
                height: 64px;
                min-height: 64px;
            }
            .site-header.scrolled .header-inner {
                height: 56px;
                min-height: 56px;
            }
            .site-nav {
                position: fixed;
                top: 0;
                left: 0;
                width: 100%;
                height: 100vh;
                height: 100dvh;
                display: flex !important;
                flex-direction: column;
                justify-content: center;
                align-items: center;
                gap: 34px;
                background: var(--dark);
                z-index: 1050;
                margin: 0;
                opacity: 0;
                visibility: hidden;
                transform: translateY(-14px);
                transition: opacity .25s var(--ease), transform .28s var(--ease), visibility .25s;
            }
            .site-nav.open {
                opacity: 1;
                visibility: visible;
                transform: translateY(0);
            }
            .site-nav .nav-item {
                color: rgba(245, 242, 236, .82);
                font-size: 1.35rem;
            }
            .site-nav .nav-item:hover,
            .site-nav .nav-item.active {
                color: #fff;
            }
            .site-nav .nav-item::after {
                background: var(--copper);
            }
        }

        /* Page hero */
        .category-hero {
            position: relative;
            background: linear-gradient(105deg, rgba(20, 22, 20, .9) 0%, rgba(20, 22, 20, .58) 55%, rgba(20, 22, 20, .32) 100%), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
            padding: 196px 0 112px;
            color: #F5F2EC;
            overflow: hidden;
        }
        .category-hero .water-mark {
            position: absolute;
            right: -20px;
            bottom: -60px;
            font-size: clamp(7rem, 18vw, 16rem);
            font-weight: 900;
            color: rgba(255, 255, 255, .04);
            letter-spacing: -.08em;
            line-height: 1;
            pointer-events: none;
            user-select: none;
        }
        .breadcrumb-nav {
            margin-bottom: 74px;
        }
        .breadcrumb-nav .breadcrumb {
            display: inline-flex;
            flex-wrap: wrap;
            margin: 0;
            padding: 0;
            list-style: none;
            font-size: .86rem;
            background: transparent;
        }
        .breadcrumb-nav li+li::before {
            content: "/";
            margin: 0 12px;
            color: rgba(255, 255, 255, .4);
        }
        .breadcrumb-nav a {
            color: rgba(255, 255, 255, .72);
            transition: color .25s var(--ease);
        }
        .breadcrumb-nav a:hover {
            color: #fff;
        }
        .category-hero h1 {
            font-size: clamp(2.8rem, 6vw, 5rem);
            line-height: 1.05;
            color: #fff;
        }
        .category-hero h1 .h1-line {
            display: block;
            color: #F5F2EC;
        }
        .hero-eyebrow {
            display: inline-flex;
            align-items: center;
            gap: 12px;
            font-size: .85rem;
            font-weight: 600;
            letter-spacing: .1em;
            color: #EFE8DD;
            border: 1px solid rgba(255, 255, 255, .2);
            border-radius: 999px;
            padding: 6px 14px;
            margin-bottom: 28px;
        }
        .hero-eyebrow::before {
            content: "";
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--copper);
        }
        .hero-summary {
            max-width: 660px;
            font-size: 1.05rem;
            color: rgba(255, 255, 255, .78);
            margin-bottom: 40px;
        }
        .hero-btns {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }
        .hero-side-card {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .18);
            border-radius: var(--radius-lg);
            padding: 28px 28px 24px;
            color: #F5F2EC;
        }
        .hero-side-card .card-label {
            font-size: .82rem;
            letter-spacing: .1em;
            color: rgba(255, 255, 255, .66);
            text-transform: uppercase;
            margin-bottom: 18px;
        }
        .hero-side-card ul {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .hero-side-card li+li {
            margin-top: 14px;
        }
        .hero-side-card a {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 10px;
            color: rgba(255, 255, 255, .85);
            border-bottom: 1px solid rgba(255, 255, 255, .14);
            padding-bottom: 12px;
            transition: color .25s var(--ease), padding-left .25s var(--ease);
        }
        .hero-side-card a:hover {
            color: #fff;
            padding-left: 6px;
        }
        .hero-side-card a span {
            font-size: 1.05rem;
            color: var(--copper);
        }
        @media (max-width: 991.98px) {
            .category-hero {
                padding: 140px 0 80px;
            }
            .breadcrumb-nav {
                margin-bottom: 46px;
            }
            .hero-side-card {
                margin-top: 32px;
            }
        }

        /* Media frame */
        .media-frame {
            position: relative;
            overflow: hidden;
            border-radius: var(--radius-lg);
            border: 1px solid var(--line);
            background: #EBE6DC;
            aspect-ratio: 16 / 9;
        }
        .media-frame img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .7s var(--ease);
        }
        .media-frame:hover img {
            transform: scale(1.025);
        }
        .media-note {
            margin-top: 18px;
            font-size: .86rem;
            color: var(--muted);
            line-height: 1.6;
        }
        .media-note strong {
            color: var(--ink);
        }

        /* Overview */
        .overview-section {
            padding-top: 110px;
        }
        .overview-text .overview-note {
            border-left: 3px solid var(--copper);
            padding-left: 20px;
            color: var(--muted);
            margin-top: 10px;
        }
        .overview-points {
            list-style: none;
            margin: 42px 0 0;
            padding: 0;
        }
        .overview-points li {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            border-top: 1px solid var(--line);
            padding: 24px 0 8px;
        }
        .overview-points li:first-child {
            border-top: 0;
            padding-top: 0;
        }
        .point-no {
            font-size: .8rem;
            font-weight: 700;
            color: var(--copper);
            border: 1px solid var(--line);
            border-radius: 999px;
            width: 34px;
            height: 34px;
            flex: 0 0 34px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            margin-top: 2px;
        }
        .overview-points p:last-child {
            margin-bottom: 0;
        }
        @media (max-width: 991.98px) {
            .overview-media {
                margin-bottom: 40px;
            }
        }

        /* Scope section */
        .scope-section {
            background: #FBF9F4;
        }
        .scope-title-wrap {
            position: sticky;
            top: 120px;
        }
        .scope-title-wrap .section-desc {
            color: var(--muted);
            margin-bottom: 28px;
        }
        .scope-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-weight: 600;
            color: var(--pine);
            transition: gap .3s var(--ease), color .25s var(--ease);
        }
        .scope-link:hover {
            gap: 14px;
            color: var(--ink);
        }
        .scope-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .scope-item {
            display: flex;
            gap: 28px;
            padding: 32px 0 34px;
            border-bottom: 1px solid var(--line);
            transition: background .35s var(--ease);
        }
        .scope-item:first-child {
            border-top: 1px solid var(--line);
        }
        .scope-no {
            font-family: inherit;
            font-weight: 300;
            font-size: 1.4rem;
            color: var(--copper);
            line-height: 1.2;
            width: 44px;
            flex: 0 0 44px;
            font-variant-numeric: tabular-nums;
        }
        .scope-content h3 {
            margin-bottom: 8px;
            font-weight: 700;
        }
        .scope-content p {
            color: var(--muted);
            font-size: .98rem;
            max-width: 600px;
            margin-bottom: 0;
        }
        .scope-arrow {
            margin-left: auto;
            align-self: center;
            color: var(--line);
            font-size: 1.4rem;
            font-weight: 300;
            transition: color .3s var(--ease), transform .3s var(--ease);
        }
        .scope-item:hover .scope-arrow {
            color: var(--pine);
            transform: translateX(6px);
        }
        @media (max-width: 767.98px) {
            .scope-title-wrap {
                position: relative;
                top: 0;
                margin-bottom: 20px;
            }
            .scope-item {
                gap: 16px;
                padding: 24px 0;
            }
            .scope-no {
                width: 32px;
                flex-basis: 32px;
            }
            .scope-arrow {
                display: none;
            }
        }

        /* Scene */
        .scene-section {
            padding-bottom: 60px;
        }
        .scene-list {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .scene-item {
            border-top: 1px solid var(--line);
            padding: 30px 4px 26px 0;
            transition: padding-left .3s var(--ease);
        }
        .scene-item:last-child {
            border-bottom: 1px solid var(--line);
        }
        .scene-item:hover {
            padding-left: 10px;
        }
        .scene-item .scene-tag {
            font-size: .75rem;
            letter-spacing: .08em;
            color: var(--copper);
            font-weight: 700;
            text-transform: uppercase;
            margin-bottom: 8px;
            display: block;
        }
        .scene-item h3 {
            font-weight: 700;
            margin-bottom: 8px;
        }
        .scene-item p {
            color: var(--muted);
            margin-bottom: 0;
            font-size: .98rem;
        }

        /* Process */
        .process-section {
            background: var(--paper);
        }
        .step-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 0;
            border-top: 1px solid var(--line);
            border-bottom: 1px solid var(--line);
        }
        .step-item {
            padding: 38px 30px 42px 0;
            border-right: 0;
            margin-right: 40px;
            border-left: 1px solid var(--line);
            padding-left: 36px;
        }
        .step-item:first-child {
            border-left: 0;
            padding-left: 0;
        }
        .step-index {
            font-size: 2rem;
            font-weight: 200;
            color: var(--copper);
            line-height: 1;
            display: block;
            margin-bottom: 34px;
            font-variant-numeric: tabular-nums;
        }
        .step-item h3 {
            font-size: 1.1rem;
            font-weight: 700;
            margin-bottom: 10px;
        }
        .step-item p {
            color: var(--muted);
            font-size: .95rem;
            line-height: 1.75;
            margin-bottom: 0;
        }
        @media (max-width: 991.98px) {
            .step-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 0;
            }
            .step-item,
            .step-item:first-child {
                padding: 28px 20px 28px 20px;
            }
            .step-item:nth-child(2) {
                border-left: 0;
            }
            .step-item:nth-child(-n+2) {
                border-bottom: 1px solid var(--line);
            }
        }
        @media (max-width: 575.98px) {
            .step-grid {
                grid-template-columns: 1fr;
            }
            .step-item,
            .step-item:nth-child(2) {
                border-left: 0;
                padding-left: 0;
                border-bottom: 1px solid var(--line);
            }
            .step-item:last-child {
                border-bottom: 0;
            }
        }

        /* Security dark */
        .security-section {
            background: linear-gradient(rgba(20, 22, 20, .92), rgba(20, 22, 20, .88)), url('/assets/images/backpic/back-3.webp') center center / cover;
            color: #F5F2EC;
            padding: 110px 0;
        }
        .security-header {
            max-width: 620px;
            margin-bottom: 60px;
        }
        .security-header .section-tag {
            color: var(--copper);
        }
        .security-header h2 {
            color: #fff;
            margin-bottom: 18px;
        }
        .security-header p {
            color: rgba(245, 242, 236, .68);
        }
        .security-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            border-top: 1px solid rgba(255, 255, 255, .14);
            border-bottom: 1px solid rgba(255, 255, 255, .14);
        }
        .security-metric {
            padding: 36px 28px 36px 0;
            border-left: 1px solid rgba(255, 255, 255, .14);
            padding-left: 28px;
        }
        .security-metric:first-child {
            border-left: 0;
            padding-left: 0;
        }
        .metric-value {
            font-size: 2rem;
            font-weight: 300;
            color: #F5F2EC;
            line-height: 1.05;
            margin-bottom: 14px;
            font-variant-numeric: tabular-nums;
            letter-spacing: -0.01em;
        }
        .metric-value span {
            color: var(--copper);
            font-size: 1rem;
            margin-right: 6px;
            font-weight: 500;
        }
        .metric-name {
            font-size: .95rem;
            font-weight: 700;
            margin-bottom: 6px;
        }
        .metric-desc {
            color: rgba(245, 242, 236, .58);
            font-size: .9rem;
            line-height: 1.6;
            margin: 0;
        }
        @media (max-width: 991.98px) {
            .security-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .security-metric:nth-child(2) {
                border-left: 0;
            }
            .security-metric:nth-child(-n+2) {
                border-bottom: 1px solid rgba(255, 255, 255, .14);
            }
            .security-metric {
                padding: 28px 0 28px 20px;
            }
        }
        @media (max-width: 575.98px) {
            .security-grid {
                grid-template-columns: 1fr;
            }
            .security-metric,
            .security-metric:nth-child(2) {
                border-left: 0;
                padding: 22px 0;
                border-bottom: 1px solid rgba(255, 255, 255, .14);
            }
            .security-metric:last-child {
                border-bottom: 0;
            }
        }

        /* FAQ */
        .faq-section {
            background: #FBF9F4;
        }
        .faq-left {
            position: sticky;
            top: 120px;
            align-self: start;
        }
        .faq-left .section-desc {
            color: var(--muted);
        }
        .faq-contact-shot {
            margin-top: 26px;
            font-size: .92rem;
            color: var(--muted);
            border-top: 1px solid var(--line);
            padding-top: 24px;
            display: flex;
            gap: 12px;
            align-items: flex-start;
        }
        .faq-contact-shot .arrow {
            color: var(--copper);
            font-size: 1.3rem;
        }
        .faq-accordion {
            border-top: 1px solid var(--line);
        }
        .accordion-item {
            background: transparent;
            border: 0;
            border-bottom: 1px solid var(--line);
            border-radius: 0;
        }
        .accordion-button {
            background: transparent;
            color: var(--ink);
            font-weight: 700;
            font-size: 1.05rem;
            padding: 22px 0;
            padding-right: 52px;
            box-shadow: none;
            border-radius: 0 !important;
            transition: color .25s var(--ease);
        }
        .accordion-button:hover {
            color: var(--pine);
        }
        .accordion-button:not(.collapsed) {
            background: transparent;
            color: var(--pine);
            box-shadow: none;
        }
        .accordion-button::after {
            display: none;
        }
        .faq-icon {
            position: absolute;
            right: 6px;
            top: 50%;
            transform: translateY(-50%);
            width: 28px;
            height: 28px;
            border: 1px solid var(--line);
            border-radius: 50%;
            transition: transform .3s var(--ease), border-color .3s var(--ease), background .3s var(--ease);
        }
        .faq-icon::before,
        .faq-icon::after {
            content: "";
            position: absolute;
            left: 50%;
            top: 50%;
            width: 12px;
            height: 1.4px;
            background: var(--ink);
            transform: translate(-50%, -50%);
            transition: transform .3s var(--ease);
        }
        .faq-icon::after {
            transform: translate(-50%, -50%) rotate(90deg);
        }
        .accordion-button:not(.collapsed) .faq-icon {
            transform: translateY(-50%) rotate(45deg);
            border-color: var(--pine);
            background: var(--pine);
        }
        .accordion-button:not(.collapsed) .faq-icon::before,
        .accordion-button:not(.collapsed) .faq-icon::after {
            background: #fff;
        }
        .accordion-body {
            padding: 0 48px 28px 0;
            color: var(--muted);
            font-size: .98rem;
            line-height: 1.9;
        }
        @media (max-width: 991.98px) {
            .faq-left {
                position: relative;
                top: 0;
                margin-bottom: 8px;
            }
            .accordion-button {
                font-size: 1rem;
            }
        }

        /* Contact */
        .contact-section {
            padding-top: 0;
        }
        .contact-block {
            background: var(--surface);
            border: 1px solid var(--line);
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: var(--shadow);
        }
        .contact-left {
            background: var(--ink);
            color: #F5F2EC;
            padding: 60px;
            height: 100%;
        }
        .contact-left h2 {
            color: #fff;
            font-size: clamp(1.8rem, 2.8vw, 2.6rem);
            margin-bottom: 24px;
        }
        .contact-left p {
            color: rgba(245, 242, 236, .74);
            font-size: 1rem;
        }
        .contact-meta-list {
            list-style: none;
            margin: 34px 0 0;
            padding: 0;
        }
        .contact-meta-list li {
            border-top: 1px solid rgba(255, 255, 255, .14);
            padding: 16px 0;
            font-size: .95rem;
            display: flex;
            gap: 14px;
        }
        .contact-meta-list li span {
            color: var(--copper);
        }
        .contact-right {
            padding: 56px;
        }
        .contact-right label {
            font-size: .88rem;
            font-weight: 600;
            margin-bottom: 8px;
            color: var(--muted);
        }
        .form-control {
            height: 52px;
            border-radius: var(--radius-sm);
            border: 1px solid #CBC5BA;
            padding: 0 14px;
            font-size: .95rem;
            color: var(--ink);
            background: var(--surface);
            transition: border-color .25s var(--ease), box-shadow .25s var(--ease);
        }
        .form-control:focus {
            border-color: var(--pine);
            box-shadow: 0 0 0 3px rgba(31, 76, 71, .12);
            background: #fff;
            color: var(--ink);
        }
        textarea.form-control {
            min-height: 120px;
            padding-top: 14px;
            resize: vertical;
        }
        ::placeholder {
            color: #A9A296;
            opacity: 1;
        }
        .contact-form .btn {
            width: 100%;
            min-height: 52px;
        }
        @media (max-width: 991.98px) {
            .contact-left,
            .contact-right {
                padding: 36px;
            }
            .contact-section {
                padding-top: 0;
            }
        }
        @media (max-width: 575.98px) {
            .contact-left,
            .contact-right {
                padding: 28px 22px;
            }
            .contact-block {
                border-radius: 0;
            }
        }

        /* Footer */
        .site-footer {
            background: var(--dark);
            color: rgba(245, 242, 236, .68);
            padding: 80px 0 36px;
            font-size: .96rem;
        }
        .footer-brandline {
            font-size: 2rem;
            color: #F5F2EC;
            font-weight: 800;
            margin-bottom: 14px;
            line-height: 1.3;
        }
        .footer-brandline span {
            color: var(--copper);
        }
        .footer-desc {
            max-width: 460px;
            color: rgba(245, 242, 236, .56);
            font-size: .92rem;
        }
        .footer-title {
            color: #fff;
            font-size: .95rem;
            font-weight: 600;
            margin-bottom: 18px;
        }
        .footer-links {
            list-style: none;
            margin: 0;
            padding: 0;
        }
        .footer-links li+li {
            margin-top: 12px;
        }
        .footer-links a {
            color: rgba(245, 242, 236, .6);
            transition: color .25s var(--ease), padding-left .25s var(--ease);
        }
        .footer-links a:hover {
            color: #fff;
            padding-left: 4px;
        }
        .footer-verification {
            border-top: 1px solid rgba(255, 255, 255, .12);
            margin-top: 56px;
            padding-top: 26px;
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            gap: 14px;
            align-items: center;
            font-size: .82rem;
            color: rgba(245, 242, 236, .4);
        }
        .footer-verification .badge {
            border: 1px solid rgba(255, 255, 255, .18);
            border-radius: 999px;
            background: transparent;
            color: rgba(245, 242, 236, .7);
            font-weight: 400;
            padding: 4px 12px;
        }
        @media (max-width: 991.98px) {
            .site-footer {
                padding-top: 60px;
            }
        }

        /* Floating CTA */
        .float-cta {
            position: fixed;
            right: 24px;
            bottom: 24px;
            z-index: 1020;
            background: var(--ink);
            border: 1px solid rgba(0, 0, 0, .2);
            color: #fff;
            padding: 13px 22px;
            border-radius: 999px;
            font-size: .9rem;
            font-weight: 600;
            display: inline-flex;
            align-items: center;
            gap: 8px;
            box-shadow: 0 12px 30px rgba(0, 0, 0, .18);
            opacity: 0;
            visibility: hidden;
            transform: translateY(16px);
            transition: opacity .35s var(--ease), transform .35s var(--ease), background .25s var(--ease), visibility .35s;
        }
        .float-cta.show {
            opacity: 1;
            visibility: visible;
            transform: translateY(0);
        }
        .float-cta:hover {
            background: var(--pine);
            color: #fff;
        }
        .float-cta::before {
            content: "";
            width: 7px;
            height: 7px;
            background: var(--copper);
            border-radius: 50%;
        }
        @media (max-width: 575.98px) {
            .float-cta {
                left: 16px;
                right: 16px;
                justify-content: center;
            }
        }

        /* Reveal */
        .reveal {
            opacity: 0;
            transform: translateY(16px);
            transition: opacity .65s var(--ease), transform .65s var(--ease);
            transition-delay: var(--delay, 0s);
        }
        .reveal.in-view {
            opacity: 1;
            transform: none;
        }
        @media (max-width: 991.98px) {
            .section {
                padding: 68px 0;
            }
            .overview-section {
                padding-top: 76px;
            }
        }
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: .01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: .01ms !important;
                scroll-behavior: auto !important;
            }
            .reveal {
                opacity: 1;
                transform: none;
            }
        }

/* roulang page: category3 */
:root {
  --paper: #F5F2EC;
  --surface: #FFFFFF;
  --ink: #1B1C19;
  --muted: #605C54;
  --pine: #1F4C47;
  --copper: #BD8E66;
  --line: #DDD8CE;
  --dark: #141614;
  --dark-soft: #1C1F1C;
  --radius-sm: 3px;
  --radius-md: 6px;
  --radius-lg: 10px;
  --shadow-soft: 0 8px 30px rgba(0, 0, 0, 0.03);
  --shadow-hover: 0 16px 40px rgba(0, 0, 0, 0.07);
  --font-sans: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--paper);
  color: var(--ink);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

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

button {
  font-family: inherit;
  border: 0;
  background: none;
}

ul,
ol,
dl,
p {
  margin: 0;
  padding: 0;
}

.container-xxl {
  max-width: 1320px;
}

body {
  padding-top: 80px;
}

@media (max-width: 991.98px) {
  body {
    padding-top: 64px;
  }
}

/* ---------------------------------------------------
Header & Nav
--------------------------------------------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1040;
  height: 80px;
  display: flex;
  align-items: center;
  background: rgba(245, 242, 236, 0.96);
  border-bottom: 1px solid rgba(221, 216, 206, 0.85);
  transition: height 0.3s ease, background 0.3s ease, box-shadow 0.3s ease;
}

.site-header.is-scrolled {
  height: 64px;
  background: rgba(245, 242, 236, 0.94);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
}

.header-inner {
  height: 80px;
  transition: height 0.3s ease;
}

.site-header.is-scrolled .header-inner {
  height: 64px;
}

.brand {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1.12;
  font-size: 1.28rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
  white-space: nowrap;
}

.brand-dot {
  color: var(--copper);
}

.brand small {
  font-size: 0.62rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  color: var(--muted);
  text-transform: uppercase;
  margin-top: 2px;
}

.site-nav {
  margin-left: 2rem;
}

.nav-item {
  position: relative;
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 0.95rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: 0.01em;
  transition: color 0.25s ease;
}

.nav-item::after {
  content: "";
  position: absolute;
  left: 0.95rem;
  right: calc(100% - 0.95rem);
  bottom: -4px;
  height: 2px;
  background: var(--pine);
  transition: right 0.28s ease;
}

.nav-item:hover,
.nav-item.active {
  color: var(--pine);
}

.nav-item:hover::after,
.nav-item.active::after {
  right: 0.95rem;
}

.status-pill {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.45rem 0.85rem;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--pine);
  background: rgba(31, 76, 71, 0.06);
  border: 1px solid rgba(31, 76, 71, 0.16);
  border-radius: 999px;
  line-height: 1;
}

.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--pine);
  display: inline-block;
  box-shadow: 0 0 0 0 rgba(31, 76, 71, 0.45);
}

.header-cta .btn {
  min-height: 42px;
  padding: 0.55rem 1.3rem;
  font-size: 0.9rem;
}

.nav-toggle {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--ink);
  border-radius: 4px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

.nav-toggle:focus-visible,
.mobile-close:focus-visible,
.btn:focus-visible,
.form-control:focus-visible {
  outline: none;
  box-shadow: 0 0 0 3px rgba(189, 142, 102, 0.45);
}

/* Mobile menu overlay */
.mobile-menu {
  position: fixed;
  inset: 0 0 0 auto;
  z-index: 1080;
  width: min(480px, 100%);
  height: 100dvh;
  padding: 2rem 2rem 2.5rem;
  background: var(--dark);
  color: var(--paper);
  display: flex;
  flex-direction: column;
  transform: translateX(100%);
  visibility: hidden;
  transition: transform 0.32s ease, visibility 0s linear 0.32s;
}

.mobile-menu.is-open {
  transform: translateX(0);
  visibility: visible;
  transition: transform 0.32s ease, visibility 0s;
}

.mobile-menu-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 2.75rem;
}

.mobile-menu .brand {
  color: var(--paper);
}

.mobile-menu .brand small {
  color: rgba(245, 242, 236, 0.55);
}

.mobile-close {
  width: 44px;
  height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--paper);
  cursor: pointer;
  border-radius: var(--radius-sm);
  transition: background 0.25s ease;
}

.mobile-close:hover {
  background: rgba(255, 255, 255, 0.08);
}

.mobile-close .ico {
  position: relative;
  display: inline-block;
  width: 28px;
  height: 28px;
}

.mobile-close .ico::before,
.mobile-close .ico::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 24px;
  height: 2px;
  background: var(--paper);
  border-radius: 2px;
  transform: translate(-50%, -50%) rotate(45deg);
}

.mobile-close .ico::after {
  transform: translate(-50%, -50%) rotate(-45deg);
}

.mobile-nav {
  display: flex;
  flex-direction: column;
}

.mobile-nav a {
  color: var(--paper);
  font-size: 1.5rem;
  font-weight: 700;
  padding: 0.8rem 0;
  border-bottom: 1px solid rgba(245, 242, 236, 0.12);
  transition: color 0.22s ease, padding-left 0.22s ease;
}

.mobile-nav a:hover {
  color: var(--copper);
  padding-left: 0.4rem;
}

.mobile-nav a.active {
  color: var(--copper);
}

.mobile-menu-foot {
  margin-top: auto;
  padding-top: 2rem;
}

.mobile-status {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  color: rgba(245, 242, 236, 0.75);
  font-size: 0.9rem;
}

.mobile-menu .btn {
  display: block;
  text-align: center;
  margin-top: 1.2rem;
}

@media (min-width: 992px) {
  .mobile-menu {
    display: none;
  }
}

/* ---------------------------------------------------
Buttons and common
--------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  height: 50px;
  padding: 0.85rem 1.7rem;
  font-size: 0.98rem;
  font-weight: 600;
  line-height: 1;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: all 0.28s ease;
  cursor: pointer;
}

.btn svg {
  width: 17px;
  height: 17px;
  transition: transform 0.28s ease;
}

.btn:hover svg {
  transform: translateX(4px);
}

.btn-primary {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.btn-primary:hover,
.btn-primary:focus {
  background: var(--pine);
  border-color: var(--pine);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(31, 76, 71, 0.14);
}

.btn-outline-paper {
  background: transparent;
  border-color: rgba(245, 242, 236, 0.55);
  color: var(--paper);
}

.btn-outline-paper:hover,
.btn-outline-paper:focus {
  background: rgba(245, 242, 236, 0.08);
  border-color: var(--paper);
  color: var(--paper);
  transform: translateY(-2px);
}

.btn-outline-dark {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

.btn-outline-dark:hover {
  border-color: var(--pine);
  background: rgba(31, 76, 71, 0.04);
  color: var(--pine);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--pine);
  border-bottom: 1px solid transparent;
  transition: border-color 0.25s ease, color 0.25s ease;
}

.text-link svg {
  width: 16px;
  height: 16px;
  transition: transform 0.28s ease;
}

.text-link:hover {
  color: var(--ink);
  border-color: var(--copper);
}

.text-link:hover svg {
  transform: translateX(4px);
}

.section {
  padding: 96px 0;
}

.section-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--pine);
  margin-bottom: 1rem;
}

.section-label .label-no {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 34px;
  height: 26px;
  padding: 0 0.3rem;
  color: var(--copper);
  border: 1px solid rgba(189, 142, 102, 0.35);
  border-radius: 999px;
  font-size: 0.72rem;
}

.section-title {
  font-size: clamp(1.9rem, 3.6vw, 3.1rem);
  font-weight: 800;
  line-height: 1.18;
  letter-spacing: -0.02em;
  color: var(--ink);
  max-width: 560px;
}

.section-desc,
.section-note {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.9;
  margin-top: 1.1rem;
  max-width: 500px;
}

.sticky-block {
  position: sticky;
  top: 112px;
}

@media (max-width: 991.98px) {
  .section {
    padding: 72px 0;
  }

  .sticky-block {
    position: static;
  }
}

/* ---------------------------------------------------
Category Hero
--------------------------------------------------- */
.category-hero {
  position: relative;
  min-height: calc(100vh - 80px);
  display: flex;
  align-items: center;
  color: var(--paper);
  padding: 140px 0 110px;
  background-image: linear-gradient(102deg, rgba(18, 22, 19, 0.96) 0%, rgba(22, 26, 22, 0.82) 45%, rgba(22, 25, 22, 0.56) 100%), url("/assets/images/backpic/back-3.webp");
  background-position: center center;
  background-size: cover;
  background-repeat: no-repeat;
  overflow: hidden;
}

.category-hero::before {
  content: "资讯";
  position: absolute;
  right: 2vw;
  top: 3rem;
  font-size: clamp(8rem, 22vw, 18rem);
  font-weight: 800;
  line-height: 1;
  color: rgba(245, 242, 236, 0.04);
  letter-spacing: -0.04em;
  user-select: none;
  pointer-events: none;
}

.category-hero .container-xxl {
  position: relative;
  z-index: 2;
}

.category-breadcrumb {
  margin-bottom: 3rem;
}

.category-breadcrumb .breadcrumb {
  margin: 0;
  background: transparent;
}

.category-breadcrumb .breadcrumb-item {
  color: rgba(245, 242, 236, 0.72);
  font-size: 0.88rem;
}

.category-breadcrumb .breadcrumb-item a {
  color: rgba(245, 242, 236, 0.72);
  transition: color 0.2s ease;
}

.category-breadcrumb .breadcrumb-item a:hover {
  color: var(--paper);
}

.category-breadcrumb .breadcrumb-item.active {
  color: var(--copper);
}

.category-breadcrumb .breadcrumb-item + .breadcrumb-item::before {
  color: rgba(245, 242, 236, 0.4);
  content: "/";
}

.hero-inner {
  max-width: 820px;
}

.hero-kicker {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 0.88rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  color: rgba(245, 242, 236, 0.85);
  margin-bottom: 1.6rem;
}

.hero-kicker .dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--copper);
  display: inline-block;
}

.category-hero-title {
  font-size: clamp(3.4rem, 7.5vw, 6.3rem);
  font-weight: 800;
  line-height: 1.06;
  letter-spacing: -0.03em;
  color: var(--paper);
  margin-bottom: 1.6rem;
}

.category-hero-lead {
  font-size: 1.08rem;
  line-height: 1.9;
  color: rgba(245, 242, 236, 0.82);
  max-width: 680px;
  margin-bottom: 2.2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  align-items: center;
}

.hero-anchors {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  margin-top: 4rem;
  border-top: 1px solid rgba(245, 242, 236, 0.14);
}

.hero-anchors a {
  display: inline-flex;
  align-items: center;
  color: rgba(245, 242, 236, 0.85);
  font-size: 0.9rem;
  font-weight: 500;
  padding: 1.05rem 1.4rem 0 0;
  margin-right: 2.2rem;
  border-bottom: 1px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease;
}

.hero-anchors a:hover {
  color: var(--copper);
}

@media (max-width: 768px) {
  .category-hero {
    min-height: auto;
    padding: 96px 0 64px;
  }

  .hero-anchors {
    margin-top: 2.4rem;
  }

  .hero-anchors a {
    margin-right: 1.2rem;
  }
}

/* ---------------------------------------------------
Direction section
--------------------------------------------------- */
.segment-intro {
  background: var(--paper);
}

.info-index {
  border-top: 1px solid var(--line);
  margin: 0;
}

.info-item {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 1.2rem;
  border-bottom: 1px solid var(--line);
  padding: 2rem 0.75rem 2rem 0;
  transition: background 0.25s ease;
}

.info-item:hover {
  background: rgba(255, 255, 255, 0.5);
}

.info-index .index-num {
  font-size: 0.94rem;
  font-weight: 600;
  color: var(--copper);
  font-variant-numeric: tabular-nums;
  padding-top: 0.35rem;
  transition: transform 0.2s ease;
}

.info-item:hover .index-num {
  transform: translateX(3px);
}

.info-body h3 {
  font-size: 1.42rem;
  font-weight: 750;
  letter-spacing: -0.01em;
  margin-bottom: 0.55rem;
  color: var(--ink);
}

.info-body p {
  color: var(--muted);
  max-width: 580px;
  margin-bottom: 0.8rem;
  line-height: 1.85;
}

.info-body .text-link {
  font-size: 0.87rem;
}

@media (max-width: 575.98px) {
  .info-item {
    grid-template-columns: 52px 1fr;
    padding: 1.4rem 0;
  }

  .info-index .index-num {
    font-size: 0.82rem;
  }

  .info-body h3 {
    font-size: 1.25rem;
  }
}

/* ---------------------------------------------------
Focus / Notice
--------------------------------------------------- */
.segment-focus {
  background: #EFEAE1;
  border-top: 1px solid #E3DDD2;
  border-bottom: 1px solid #E3DDD2;
}

.media-frame {
  position: relative;
  overflow: hidden;
  background: #DCD5C8;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  line-height: 0;
}

.media-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.65s ease;
}

.media-frame:hover img {
  transform: scale(1.035);
}

.ratio-4-3 {
  aspect-ratio: 4 / 3;
}

.ratio-16-9 {
  aspect-ratio: 16 / 9;
}

.focus-copy .focus-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.8rem;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--pine);
  border: 1px solid rgba(31, 76, 71, 0.22);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.55);
  margin-bottom: 1.25rem;
}

.focus-copy h2 {
  font-size: clamp(1.7rem, 2.8vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  max-width: 460px;
  margin-bottom: 1rem;
}

.focus-copy p {
  color: var(--muted);
  line-height: 1.9;
  max-width: 520px;
  margin-bottom: 1.6rem;
}

.update-list {
  border-top: 1px solid var(--line);
  margin-top: 2.6rem;
}

.update-item {
  display: grid;
  grid-template-columns: 112px 1fr auto 28px;
  gap: 1.2rem;
  align-items: center;
  padding: 1.5rem 0.5rem;
  border-bottom: 1px solid var(--line);
  color: var(--ink);
  transition: background 0.25s ease, padding-left 0.25s ease;
}

.update-item:hover {
  background: rgba(255, 255, 255, 0.55);
  padding-left: 0.9rem;
}

.update-date {
  font-size: 0.88rem;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.update-title {
  display: block;
  font-size: 1.05rem;
  font-weight: 650;
  margin-bottom: 0.12rem;
}

.update-excerpt {
  display: block;
  font-size: 0.86rem;
  color: var(--muted);
}

.update-tag {
  display: inline-flex;
  align-items: center;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(96, 92, 84, 0.24);
  font-size: 0.75rem;
  color: var(--muted);
  white-space: nowrap;
}

.update-arrow {
  color: var(--pine);
  width: 24px;
  height: 24px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--line);
  transition: border-color 0.25s ease, background 0.25s ease;
}

.update-item:hover .update-arrow {
  border-color: var(--pine);
  background: rgba(31, 76, 71, 0.06);
}

@media (max-width: 767.98px) {
  .update-item {
    grid-template-columns: 1fr auto;
    gap: 0.4rem 1rem;
  }

  .update-date {
    font-size: 0.8rem;
  }

  .update-excerpt {
    display: none;
  }

  .update-tag {
    grid-column: 1 / 2;
    justify-self: start;
  }

  .update-arrow {
    grid-column: 2 / 3;
    grid-row: 1 / 3;
  }
}

/* ---------------------------------------------------
Dark stats / record
--------------------------------------------------- */
.segment-record {
  background: var(--dark);
  color: rgba(245, 242, 236, 0.85);
  padding: 110px 0;
}

.segment-record .section-title {
  color: var(--paper);
}

.segment-record .section-label {
  color: rgba(245, 242, 236, 0.66);
}

.segment-record .section-label .label-no {
  color: var(--copper);
  border-color: rgba(189, 142, 102, 0.45);
}

.segment-record .section-desc {
  color: rgba(245, 242, 236, 0.62);
}

.record-head {
  max-width: 760px;
}

.record-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  margin-top: 4.5rem;
  border-top: 1px solid rgba(245, 242, 236, 0.12);
}

.record-col {
  padding: 2.6rem 2rem 0 0;
  border-right: 1px solid rgba(245, 242, 236, 0.08);
}

.record-col + .record-col {
  padding-left: 2rem;
}

.record-col:last-child {
  border-right: 0;
}

.record-num {
  display: block;
  font-size: clamp(2.6rem, 5vw, 4.8rem);
  font-weight: 800;
  line-height: 1.1;
  color: var(--paper);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.03em;
}

.record-col span.record-label {
  display: block;
  font-size: 0.9rem;
  color: var(--copper);
  margin-top: 0.6rem;
  letter-spacing: 0.04em;
}

.record-col p {
  font-size: 0.86rem;
  color: rgba(245, 242, 236, 0.5);
  margin-top: 0.45rem;
  line-height: 1.6;
}

@media (max-width: 991.98px) {
  .record-row {
    grid-template-columns: repeat(2, 1fr);
    gap: 0;
  }

  .record-col {
    padding: 2rem 1.5rem 2rem 0;
    border-top: 1px solid rgba(245, 242, 236, 0.1);
    border-right: 1px solid rgba(245, 242, 236, 0.08);
  }

  .record-row {
    border-top: 1px solid rgba(245, 242, 236, 0.1);
    margin-top: 3rem;
  }

  .record-col:nth-child(even) {
    border-right: 0;
    padding-left: 1.5rem;
  }
}

@media (max-width: 575.98px) {
  .record-row {
    grid-template-columns: 1fr;
    margin-top: 2rem;
  }

  .record-col {
    border-right: 0;
  }

  .record-col:nth-child(even) {
    padding-left: 0;
  }
}

/* ---------------------------------------------------
Rules & media
--------------------------------------------------- */
.segment-rules {
  background: var(--paper);
}

.rule-copy h2 {
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  font-weight: 800;
  line-height: 1.18;
  margin-bottom: 1rem;
  color: var(--ink);
}

.rule-copy p {
  color: var(--muted);
  max-width: 560px;
  margin-bottom: 1.2rem;
  line-height: 1.9;
}

.rule-note {
  display: flex;
  gap: 0.8rem;
  align-items: flex-start;
  padding: 1.05rem 1.25rem;
  border-left: 3px solid var(--copper);
  background: rgba(189, 142, 102, 0.08);
  color: var(--muted);
  font-size: 0.95rem;
  line-height: 1.8;
  margin-bottom: 1.6rem;
}

.rule-note span {
  color: var(--copper);
  font-weight: 700;
}

/* ---------------------------------------------------
FAQ
--------------------------------------------------- */
.segment-faq {
  background: #EFEAE1;
  border-top: 1px solid #E3DDD2;
}

.faq-accordion {
  border-top: 1px solid var(--line);
}

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

.accordion-button {
  padding: 1.5rem 0.25rem 1.5rem 0;
  background: transparent !important;
  box-shadow: none !important;
  border: 0 !important;
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 650;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  width: 100%;
  text-align: left;
  transition: color 0.25s ease;
}

.accordion-button:hover {
  color: var(--pine);
}

.accordion-button:not(.collapsed) {
  color: var(--pine);
  box-shadow: inset 3px 0 0 var(--pine) !important;
}

.accordion-button:not(.collapsed) .acc-icon {
  transform: rotate(45deg);
}

.accordion-button::after {
  display: none;
}

.acc-icon {
  position: relative;
  flex: 0 0 auto;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  border: 1px solid var(--line);
  transition: transform 0.3s ease, border-color 0.2s ease;
}

.accordion-button:hover .acc-icon {
  border-color: var(--pine);
}

.acc-icon::before,
.acc-icon::after {
  content: "";
  position: absolute;
  top: 50%;
  left: 50%;
  width: 11px;
  height: 1.6px;
  background: var(--pine);
  transform: translate(-50%, -50%);
  border-radius: 2px;
}

.acc-icon::after {
  height: 11px;
  width: 1.6px;
}

.accordion-body {
  padding: 0.1rem 2rem 1.8rem 0;
  color: var(--muted);
  line-height: 1.9;
}

.accordion-body p {
  max-width: 660px;
}

/* ---------------------------------------------------
Contact / Form CTA
--------------------------------------------------- */
.segment-contact {
  background: var(--paper);
}

.contact-copy h2 {
  font-size: clamp(2rem, 3.4vw, 3rem);
  font-weight: 800;
  line-height: 1.16;
  margin-bottom: 1rem;
  max-width: 480px;
}

.contact-copy p {
  color: var(--muted);
  max-width: 430px;
  margin-bottom: 1.6rem;
}

.contact-meta {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  margin-top: 1.5rem;
}

.contact-meta-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 0.95rem;
}

.contact-meta-item svg {
  width: 19px;
  height: 19px;
  color: var(--copper);
  flex: 0 0 auto;
  margin-top: 0.2rem;
}

.contact-panel {
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 2.8rem;
  box-shadow: var(--shadow-soft);
}

.contact-panel h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 0.4rem;
}

.contact-panel > p {
  font-size: 0.89rem;
  color: var(--muted);
  margin-bottom: 2.2rem;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 0.45rem;
}

.form-label em {
  color: var(--copper);
  font-style: normal;
}

.form-control {
  width: 100%;
  height: 52px;
  background: #FFFFFF;
  border: 1px solid #CBC5BA;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  color: var(--ink);
  padding: 0.85rem 1rem;
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.form-control::-webkit-input-placeholder {
  color: #A9A196;
}

.form-control:-moz-placeholder {
  color: #A9A196;
}

.form-control:focus {
  border-color: var(--pine);
  outline: 0;
  box-shadow: 0 0 0 4px rgba(31, 76, 71, 0.12);
}

textarea.form-control {
  height: auto;
  min-height: 128px;
  resize: vertical;
}

.contact-form .btn {
  min-height: 52px;
}

.contact-form .col-md-6 {
  flex: 0 0 auto;
  width: 50%;
}

.contact-form .col-12 {
  flex: 0 0 auto;
  width: 100%;
}

@media (max-width: 767.98px) {
  .contact-panel {
    padding: 1.6rem;
  }
}

/* ---------------------------------------------------
Footer
--------------------------------------------------- */
.site-footer {
  background: var(--dark);
  color: rgba(245, 242, 236, 0.72);
  padding: 90px 0 42px;
}

.footer-brandline {
  font-size: clamp(1.8rem, 3.4vw, 2.7rem);
  font-weight: 800;
  color: var(--paper);
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin-bottom: 1.2rem;
}

.footer-brandline span {
  color: var(--copper);
  font-weight: 700;
}

.footer-desc {
  color: rgba(245, 242, 236, 0.58);
  font-size: 0.96rem;
  max-width: 560px;
  line-height: 1.9;
}

.footer-title {
  color: var(--paper);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 1.4rem;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
}

.footer-links li + li {
  margin-top: 0.6rem;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 0.3rem;
  color: rgba(245, 242, 236, 0.62);
  font-size: 0.92rem;
  transition: color 0.2s ease, padding-left 0.22s ease;
}

.footer-links a:hover {
  color: var(--copper);
  padding-left: 3px;
}

.footer-verification {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1.4rem;
  margin-top: 4.5rem;
  padding-top: 1.6rem;
  border-top: 1px solid rgba(245, 242, 236, 0.12);
  color: rgba(245, 242, 236, 0.45);
  font-size: 0.82rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.3rem 0.8rem;
  border-radius: 999px;
  border: 1px solid rgba(189, 142, 102, 0.35);
  color: var(--copper);
  background: transparent;
  font-weight: 600;
  font-size: 0.76rem;
}

@media (max-width: 767.98px) {
  .footer-verification {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-footer {
    padding: 64px 0 34px;
  }
}

/* ---------------------------------------------------
Responsive refinements
--------------------------------------------------- */
@media (max-width: 1199.98px) {
  .nav-item {
    padding: 0.5rem 0.6rem;
  }

  .status-pill {
    display: none;
  }
}

@media (max-width: 991.98px) {
  .site-header {
    height: 64px;
  }

  .header-inner {
    height: 64px;
  }

  .brand {
    font-size: 1.12rem;
  }

  .brand small {
    font-size: 0.55rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    transition-duration: 0.001ms !important;
    animation-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .btn:hover,
  .btn:hover svg,
  .media-frame img,
  .update-item,
  .info-item .index-num,
  .footer-links a {
    transform: none !important;
  }
}

/* roulang page: category4 */
:root {
  --paper: #F5F2EC;
  --surface: #FFFFFF;
  --ink: #1B1C19;
  --text: #3F3B35;
  --muted: #6A655D;
  --brand: #1F4C47;
  --bronze: #BD8E66;
  --line: #D8D2C6;
  --deepbg: #141614;
  --radius-lg: 10px;
  --radius-md: 6px;
  --radius-sm: 3px;
  --shadow-sm: 0 6px 20px rgba(20, 20, 18, .04);
  --shadow-md: 0 16px 40px rgba(20, 20, 18, .08);
  --font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
  .js .reveal { opacity: 1 !important; transform: none !important; }
}
body {
  margin: 0;
  font-family: var(--font-family);
  background-color: var(--paper);
  color: var(--ink);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
body, p, h1, h2, h3, h4, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
button { border: 0; font-family: inherit; background: none; }

section { scroll-margin-top: 90px; }

a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--bronze);
  outline-offset: 3px;
}

/* buttons */
.btn {
  height: 50px;
  padding: 0 1.8em;
  border-radius: 3px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.93rem;
  letter-spacing: .02em;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background .25s, color .25s, border-color .25s, transform .25s;
}
.btn-lg { height: 54px; padding: 0 2.1em; }
.btn-primary { background: var(--ink); color: #fff; border-color: var(--ink); }
.btn-primary:hover { background: var(--brand); border-color: var(--brand); color: #fff; transform: translateY(-2px); }
.btn-ghost-light { background: transparent; color: #fff; border-color: rgba(255,255,255,.8); }
.btn-ghost-light:hover { background: #fff; color: var(--ink); border-color: #fff; transform: translateY(-2px); }
.btn-form { background: var(--brand); color: #fff; border-color: var(--brand); width: 100%; }
.btn-form:hover { background: var(--ink); border-color: var(--ink); color: #fff; transform: translateY(-1px); }

.section-tag,
.sec-tag {
  font-size: .83rem;
  letter-spacing: .14em;
  color: var(--brand);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
}
.sec-tag .sec-no,
.section-tag .sec-no {
  color: var(--bronze);
  font-variant-numeric: tabular-nums;
  font-weight: 500;
}
.sec-title {
  font-size: clamp(1.7rem, 3.2vw, 3rem);
  line-height: 1.18;
  letter-spacing: -.015em;
  font-weight: 800;
  margin-top: 16px;
  color: var(--ink);
}
.sec-lead {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.85;
}
.page-section { padding: 96px 0; }
@media (max-width: 992px) { .page-section { padding: 64px 0; } }

/* header */
.site-header {
  position: fixed;
  top: 0;
  right: 0;
  left: 0;
  z-index: 1050;
  height: 80px;
  transition: background .35s, border-color .35s, box-shadow .35s, height .25s;
  border-bottom: 1px solid transparent;
  will-change: background;
}
.site-header.scrolled {
  height: 64px;
  background: rgba(245, 242, 236, .96);
  border-bottom-color: var(--line);
  box-shadow: 0 6px 26px rgba(20,20,18,.05);
}
.header-inner { height: 100%; }

.brand {
  display: inline-flex;
  flex-direction: column;
  font-weight: 800;
  font-size: 1.18rem;
  letter-spacing: .01em;
  line-height: 1.15;
  color: #fff;
  transition: color .3s;
  position: relative;
  z-index: 1;
}
.brand .brand-dot { color: var(--bronze); }
.brand small {
  font-size: .66rem;
  font-weight: 500;
  letter-spacing: .08em;
  color: rgba(255,255,255,.65);
  margin-top: 2px;
  transition: color .3s;
}
.site-header.scrolled .brand { color: var(--ink); }
.site-header.scrolled .brand small { color: var(--muted); }

.site-nav { gap: 32px; }
.nav-item {
  position: relative;
  font-size: .94rem;
  font-weight: 500;
  color: #F5F2EC;
  padding: 6px 0 2px;
  transition: color .25s;
}
.site-header.scrolled .nav-item { color: var(--ink); }
.nav-item::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--bronze);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .3s ease;
}
.nav-item:hover::after,
.nav-item.active::after { transform: scaleX(1); }
.nav-item.active { font-weight: 700; color: var(--brand); }
.site-header:not(.scrolled) .nav-item.active { color: #fff; }
.site-header:not(.scrolled) .nav-item:hover { color: #fff; }

.status-pill {
  height: 34px;
  padding: 0 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(255,255,255,.5);
  border-radius: 999px;
  font-size: .82rem;
  color: #F5F2EC;
  font-variant-numeric: tabular-nums;
}
.site-header.scrolled .status-pill { border-color: var(--line); color: var(--muted); }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: #A6BF9C; }

.header-cta .btn {
  height: 38px;
  padding: 0 1.3em;
  border-radius: 2px;
  font-size: .84rem;
}
.site-header:not(.scrolled) .site-header .btn { }
.site-header:not(.scrolled) .header-cta .btn {
  background: transparent;
  border: 1px solid rgba(255,255,255,.8);
  color: #fff;
}
.site-header:not(.scrolled) .header-cta .btn:hover {
  background: #fff;
  color: var(--ink);
}
.site-header.scrolled .header-cta .btn {
  background: var(--ink);
  border-color: var(--ink);
  color: #fff;
}
.site-header.scrolled .header-cta .btn:hover {
  background: var(--brand);
  border-color: var(--brand);
}

.nav-toggle {
  width: 44px;
  height: 44px;
  border: 1px solid rgba(255,255,255,.6);
  border-radius: 999px;
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  padding: 0;
  transition: opacity .2s, background .3s;
  position: relative;
  z-index: 1051;
}
.site-header.scrolled .nav-toggle { border-color: var(--ink); }
.nav-toggle span {
  width: 16px;
  height: 1.5px;
  background: #fff;
  display: block;
  transition: background .25s, transform .25s;
}
.site-header.scrolled .nav-toggle span { background: var(--ink); }
.site-header.menu-open .nav-toggle span { background: var(--bronze); }
.site-header.menu-open .nav-toggle span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.site-header.menu-open .nav-toggle span:nth-child(2) { opacity: 0; }
.site-header.menu-open .nav-toggle span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* mobile menu */
.mobile-menu {
  position: fixed;
  inset: 0;
  z-index: 1040;
  background: var(--deepbg);
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 6px;
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s ease, visibility .3s;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-menu a {
  font-size: 1.6rem;
  font-weight: 700;
  color: #E9E4DA;
  padding: 10px;
  transition: color .2s, transform .2s;
}
.mobile-menu a:hover, .mobile-menu a.active { color: var(--bronze); transform: translateX(4px); }
.mobile-menu small { color: rgba(255,255,255,.5); margin-top: 20px; letter-spacing: .15em; }

/* hero */
.page-hero {
  position: relative;
  background-image: linear-gradient(100deg, rgba(8,10,9,.72) 0%, rgba(10,18,16,.56) 46%, rgba(15,18,15,.3) 100%), url("/assets/images/backpic/back-1.webp");
  background-size: cover;
  background-position: center;
  min-height: 560px;
  display: flex;
  align-items: center;
  padding: 148px 0 84px;
  overflow: hidden;
}
.page-hero::before {
  content: "方案";
  position: absolute;
  right: 3%;
  bottom: 4%;
  font-size: clamp(4rem, 12vw, 11rem);
  font-weight: 800;
  color: rgba(255,255,255,.035);
  line-height: 1;
  pointer-events: none;
  letter-spacing: .02em;
}
.page-hero .container-xxl { position: relative; z-index: 2; }
.hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,.62);
  font-size: .85rem;
  margin-bottom: 28px;
}
.hero-breadcrumb a { color: rgba(255,255,255,.85); transition: color .2s; }
.hero-breadcrumb a:hover { color: #fff; }
.hero-breadcrumb span[aria-current="page"] { color: var(--bronze); font-weight: 600; }
.hero-breadcrumb .breadcrumb-sep { opacity: .5; }
.hero-kicker {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--bronze);
  font-size: .86rem;
  letter-spacing: .12em;
  font-weight: 600;
  margin-bottom: 18px;
}
.hero-kicker::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--bronze);
}
.page-hero h1 {
  font-size: clamp(2.8rem, 5.4vw, 4.4rem);
  font-weight: 900;
  line-height: 1.08;
  letter-spacing: -.02em;
  color: #fff;
}
.hero-lead {
  color: rgba(255,255,255,.82);
  max-width: 640px;
  font-size: 1.04rem;
  line-height: 1.9;
  margin-top: 20px;
}
.hero-actions {
  margin-top: 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}
.hero-note {
  margin-top: 52px;
  color: rgba(255,255,255,.55);
  font-size: .84rem;
  letter-spacing: .06em;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hero-note::before {
  content: "";
  width: 34px;
  height: 1px;
  background: var(--bronze);
}
.hero-scroll {
  position: absolute;
  right: 38px;
  top: 50%;
  transform: translateY(-50%);
  color: rgba(255,255,255,.55);
  font-size: .72rem;
  letter-spacing: .14em;
  line-height: 2.2;
  writing-mode: vertical-rl;
  text-align: center;
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero-scroll::after {
  content: "";
  width: 1px;
  height: 68px;
  background: linear-gradient(to bottom, rgba(189,142,102,.7), transparent);
  animation: scrollHint 2s ease-in-out infinite;
}
@keyframes scrollHint {
  0% { transform: scaleY(.4); transform-origin: top; }
  60%, 100% { transform: scaleY(1); transform-origin: top; }
}
@media (max-width:767px) {
  .hero-scroll { display: none; }
}

/* overview & route */
.route-section {
  background: var(--paper);
}
.media-fig { margin-top: 14px; }
.media-frame {
  position: relative;
  width: 100%;
  overflow: hidden;
  aspect-ratio: var(--ratio, 16/9);
  background: #DBD6CC;
  border-radius: var(--radius-lg);
}
.media-frame img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .9s cubic-bezier(.22,.61,.36,1);
}
.media-frame:hover img { transform: scale(1.03); }
.media-frame--45 { --ratio: 4/3; }
.media-frame--wide { --ratio: 21/9; }
@media (max-width:767px) {
  .media-frame--wide { --ratio: 4/3; }
}

.route-list {
  margin-top: 34px;
  border-top: 1px solid var(--line);
}
.route-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 20px 4px;
  border-bottom: 1px solid var(--line);
  transition: background .25s;
}
.route-item:hover { background: rgba(31, 76, 71, .04); }
.route-item .route-no {
  font-size: .85rem;
  color: var(--bronze);
  font-variant-numeric: tabular-nums;
  padding-top: 6px;
  min-width: 34px;
}
.route-main h3 { font-size: 1.06rem; font-weight: 700; margin-bottom: 6px; }
.route-main p { color: var(--muted); font-size: .9rem; line-height: 1.75; }
.route-item .route-link {
  margin-left: auto;
  color: var(--brand);
  font-size: .87rem;
  font-weight: 600;
  white-space: nowrap;
  padding-top: 9px;
}

/* section head normal */
.modules-section { background: var(--surface); }
.section-head--split { margin-bottom: 56px; }
.sec-summary {
  color: var(--muted);
  font-size: 1rem;
  line-height: 1.9;
  padding-top: 34px;
}

/* module blocks */
.module-row {
  padding: 42px 0;
  border-top: 1px solid var(--line);
  scroll-margin-top: 100px;
}
.module-row:first-of-type { border-top: 0; }
.module-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--bronze);
  font-size: .84rem;
  letter-spacing: .12em;
  font-weight: 600;
  margin-bottom: 10px;
}
.module-meta::before { content: ""; width: 22px; height: 1px; background: var(--bronze); }
.module-row h3 {
  font-size: clamp(1.3rem, 2.2vw, 2rem);
  font-weight: 800;
  letter-spacing: -.01em;
  line-height: 1.25;
  margin-bottom: 20px;
}
.module-row p {
  color: var(--muted);
  line-height: 1.9;
  font-size: 1rem;
  max-width: 90%;
  margin-bottom: 22px;
}
.module-actions { display: flex; flex-wrap: wrap; gap: 12px; align-items: center; }
.line-badge {
  font-size: .79rem;
  border: 1px solid var(--line);
  padding: 4px 10px;
  border-radius: 999px;
  background: var(--paper);
  color: var(--muted);
  transition: border-color .2s, color .2s;
}
.line-badge:hover { border-color: var(--brand); color: var(--brand); }
.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 600;
  color: var(--brand);
  font-size: .89rem;
}
.link-arrow svg { width: 15px; height: 15px; transition: transform .25s; }
.link-arrow:hover svg { transform: translateX(4px); }

/* evidence */
.evidence {
  background: var(--deepbg);
  padding: 88px 0;
  color: var(--paper);
}
.evidence-head {
  display: flex;
  flex-wrap: wrap;
  gap: 40px;
  margin-bottom: 48px;
}
.evidence-head .section-tag { color: var(--bronze); }
.evidence-head .sec-title { color: #fff; }
.evidence-head .sec-lead { color: rgba(255,255,255,.62); }
.evidence-row { border-top: 1px solid rgba(255,255,255,.18); }
.evidence-item {
  padding: 28px 22px 18px;
  border-right: 1px solid rgba(255,255,255,.14);
}
.evidence-item:last-child { border-right: 0; }
.ev-num {
  display: block;
  font-size: clamp(2.7rem, 5vw, 4rem);
  font-weight: 900;
  color: var(--paper);
  line-height: 1.05;
  font-variant-numeric: tabular-nums;
  letter-spacing: -.02em;
}
.ev-label {
  color: var(--bronze);
  font-size: .84rem;
  letter-spacing: .14em;
  margin-top: 12px;
  display: block;
}
.ev-note {
  color: rgba(255,255,255,.55);
  font-size: .83rem;
  line-height: 1.8;
  max-width: 440px;
  margin-top: 44px;
}
@media (max-width:991px) {
  .evidence-item { border-bottom: 1px solid rgba(255,255,255,.14); }
  .evidence-item:nth-child(2) { border-right: 0; }
}
@media (max-width:575px) {
  .evidence-item { border-right: 0; }
}

/* audience */
.audience-section { background: var(--paper); }
.audience-list { border-top: 1px solid var(--line); }
.audience-item {
  padding: 24px 8px;
  border-bottom: 1px solid var(--line);
  transition: background .25s;
}
.audience-item:hover { background: rgba(31,76,71,.03); }
.audience-item .aud-title {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}
.audience-item .aud-title em {
  font-style: normal;
  color: var(--bronze);
  font-size: .82rem;
  letter-spacing: .06em;
  margin-right: 14px;
}
.audience-item p { color: var(--muted); font-size: .92rem; line-height: 1.85; }

/* process */
.process-section { background: var(--surface); }
.process-step {
  position: relative;
  padding-top: 28px;
  border-top: 1px solid var(--line);
  min-height: 170px;
  transition: border-color .25s;
}
.process-step:hover { border-top-color: var(--brand); }
.step-no {
  font-size: .78rem;
  letter-spacing: .14em;
  color: var(--bronze);
  display: block;
  margin-bottom: 18px;
  font-variant-numeric: tabular-nums;
}
.process-step h4 { font-size: 1.02rem; font-weight: 700; margin-bottom: 10px; }
.process-step p { color: var(--muted); font-size: .91rem; line-height: 1.82; }
@media (max-width:991px) {
  .process-step { min-height: auto; margin-bottom: 34px; }
}

/* faq */
.faq-section { background: var(--paper); }
.accordion-item {
  background: transparent;
  border: 0;
  border-bottom: 1px solid var(--line);
  border-radius: 0 !important;
}
.accordion-button {
  background: transparent;
  box-shadow: none;
  color: var(--ink);
  font-size: 1.08rem;
  font-weight: 700;
  padding: 22px 0;
  border-radius: 0 !important;
  transition: color .25s;
}
.accordion-button:not(.collapsed) { background: transparent; color: var(--brand); box-shadow: none; }
.accordion-button:hover { color: var(--brand); }
.accordion-button::after {
  display: none !important;
}
.acc-mark {
  flex: 0 0 24px;
  width: 24px;
  height: 24px;
  border: 1px solid var(--line);
  color: var(--bronze);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  border-radius: 50%;
  transition: transform .3s ease, border-color .3s, background .3s;
  margin-left: auto;
}
.accordion-button:not(.collapsed) .acc-mark {
  transform: rotate(135deg);
  border-color: var(--brand);
  color: var(--brand);
}
.accordion-body {
  padding: 0 0 28px;
  color: var(--muted);
  font-size: .96rem;
  line-height: 1.9;
  max-width: 92%;
}

/* contact / CTA */
.contact-section {
  background: var(--deepbg);
  padding: 96px 0;
  color: var(--paper);
}
.contact-label {
  color: var(--bronze);
  font-size: .84rem;
  letter-spacing: .14em;
  margin-bottom: 16px;
  display: block;
}
.contact-section h2 {
  color: #fff;
  font-size: clamp(1.8rem, 3vw, 2.7rem);
  font-weight: 800;
  line-height: 1.22;
  letter-spacing: -.01em;
  margin-bottom: 24px;
}
.contact-section .contact-desc {
  color: rgba(255,255,255,.68);
  max-width: 560px;
  line-height: 1.9;
  margin-bottom: 32px;
}
.contact-list { margin-bottom: 30px; }
.contact-list li {
  padding: 6px 0;
  color: rgba(255,255,255,.75);
  font-size: .94rem;
  display: flex;
  gap: 12px;
}
.contact-list li svg {
  width: 17px;
  height: 17px;
  flex: 0 0 17px;
  stroke: var(--bronze);
  margin-top: 5px;
}
.contact-form-wrap {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius-lg);
  padding: 32px 30px;
}
.form-label {
  color: rgba(255,255,255,.72);
  font-size: .88rem;
  margin-bottom: 4px;
}
.form-control {
  height: 50px;
  border-radius: 4px;
  border: 1px solid rgba(255,255,255,.22);
  background: #20221F;
  color: #f5f2ec;
  padding: .55rem 1rem;
  font-size: .95rem;
  transition: border-color .25s, box-shadow .25s;
}
.form-control::placeholder { color: rgba(255,255,255,.35); }
.form-control:focus {
  border-color: var(--bronze);
  background: #20221F;
  color: #fff;
  box-shadow: 0 0 0 3px rgba(189,142,102,.16);
}
textarea.form-control { height: auto; min-height: 106px; resize: vertical; }
.form-note { color: rgba(255,255,255,.5); font-size: .78rem; }

/* footer */
.site-footer {
  background: var(--deepbg);
  border-top: 1px solid rgba(255,255,255,.08);
  padding: 78px 0 32px;
  color: rgba(255,255,255,.72);
}
.footer-brandline {
  color: #fff;
  font-size: clamp(1.5rem, 2.4vw, 2.1rem);
  font-weight: 800;
  line-height: 1.2;
}
.footer-brandline span { color: var(--bronze); }
.footer-desc {
  color: rgba(255,255,255,.6);
  font-size: .94rem;
  line-height: 1.9;
  max-width: 420px;
  margin-top: 18px;
}
.footer-title {
  color: #fff;
  font-size: .83rem;
  letter-spacing: .14em;
  font-weight: 700;
  margin-bottom: 20px;
}
.footer-links li { margin-bottom: 8px; }
.footer-links a {
  color: rgba(255,255,255,.72);
  font-size: .92rem;
  transition: color .2s, padding-left .2s;
}
.footer-links a:hover { color: var(--bronze); padding-left: 3px; }
.footer-verification {
  margin-top: 54px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  color: rgba(255,255,255,.5);
  font-size: .8rem;
  letter-spacing: .04em;
}
.footer-verification .badge {
  border: 1px solid rgba(255,255,255,.24);
  border-radius: 999px;
  color: rgba(255,255,255,.7);
  font-weight: 500;
  padding: 4px 12px;
  font-size: .74rem;
}

/* reveal */
.js .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity .6s ease, transform .6s ease;
}
.js .reveal.visible {
  opacity: 1;
  transform: none;
}
.js .reveal[style*="--delay"] { transition-delay: var(--delay); }

@media (max-width: 991px) {
  .section-head--split { margin-bottom: 30px; }
  .sec-summary { padding-top: 0; }
  .module-row p { max-width: 100%; }
  .site-header { height: 64px; }
  .site-header.scrolled { height: 58px; }
}
@media (max-width: 767px) {
  .page-hero h1 { font-size: 2.5rem; }
  .page-hero { padding: 116px 0 60px; }
  .module-row { padding: 28px 0; }
  .contact-form-wrap { margin-top: 36px; }
  .route-item { flex-wrap: wrap; }
  .route-item .route-link { margin-left: 0; }
}