/* roulang page: index */
:root{
  --summit-950:#161A1E;
  --summit-800:#23282F;
  --summit-600:#5A6470;
  --azure-mist-50:#F5F7FA;
  --azure-mist-100:#EAF0F4;
  --cloud-200:#DCE3E9;
  --bronze-500:#A77E3D;
  --bronze-400:#C9A063;
  --bronze-100:#F1E7D6;
  --moss-600:#4B7553;
  --radius-card:16px;
  --radius-btn:8px;
  --shadow-soft:0 10px 30px rgba(22,26,30,.06);
  --shadow-hover:0 18px 40px rgba(22,26,30,.10);
  --font-serif:"Noto Serif SC","Source Han Serif SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
}
*{
  box-sizing:border-box;
  margin:0;
  padding:0;
}
html{
  scroll-behavior:smooth;
}
body{
  font-family:var(--font-serif);
  background-color:var(--azure-mist-50);
  color:var(--summit-950);
  line-height:1.8;
  letter-spacing:.025em;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
img{
  max-width:100%;
  display:block;
}
ul,ol{
  list-style:none;
}
a{
  text-decoration:none;
  color:inherit;
}
button{
  font:inherit;
  border:none;
  background:none;
  cursor:pointer;
}
input,textarea{
  font:inherit;
}
h1,h2,h3,h4{
  letter-spacing:.02em;
  line-height:1.35;
  font-weight:700;
}
h1{
  font-weight:850;
}
:focus-visible{
  outline:2px solid var(--bronze-400);
  outline-offset:2px;
}
::selection{
  background:var(--bronze-100);
  color:var(--summit-800);
}
.container{
  width:100%;
  max-width:1200px;
  margin-inline:auto;
  padding-inline:24px;
}
.section{
  padding:88px 0;
}
.section-soft{
  background:var(--azure-mist-100);
}
.bg-white{
  background:#fff;
}
.text-muted{
  color:var(--summit-600);
}
/* 顶部信息条 */
.topbar{
  background:var(--summit-950);
  color:#C4CBD4;
  font-size:13px;
  letter-spacing:.03em;
  border-bottom:1px solid rgba(255,255,255,.06);
}
.topbar .container{
  min-height:36px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.topbar-right{
  display:flex;
  align-items:center;
  gap:14px;
  font-size:13px;
}
.topbar-right span{
  opacity:.72;
}
/* 导航 */
.nav-wrap{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(245,247,250,.84);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(220,227,233,.8);
}
.nav-container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  min-height:72px;
  gap:24px;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-weight:800;
  white-space:nowrap;
}
.brand-mark{
  width:40px;
  height:40px;
  border-radius:10px;
  background:var(--summit-950);
  display:grid;
  place-items:center;
  color:var(--bronze-400);
  font-size:22px;
  font-weight:800;
  flex:none;
}
.brand-name{
  font-size:21px;
  color:var(--summit-950);
  line-height:1.2;
}
.brand-domain{
  font-size:12px;
  color:var(--summit-600);
  border-left:1px solid var(--cloud-200);
  padding-left:10px;
  letter-spacing:.02em;
  margin-left:2px;
  font-weight:400;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:34px;
}
.nav-link{
  font-size:16px;
  font-weight:600;
  color:var(--summit-800);
  padding:10px 0 12px;
  position:relative;
  transition:color .2s ease;
}
.nav-link::after{
  content:'';
  position:absolute;
  left:0;
  bottom:4px;
  width:100%;
  height:2px;
  border-radius:2px;
  background:var(--bronze-500);
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .25s ease;
}
.nav-link:hover::after,
.nav-link.active::after{
  transform:scaleX(1);
}
.nav-link:hover{
  color:var(--bronze-500);
}
.nav-link.active{
  color:var(--summit-950);
}
.nav-cta{
  display:flex;
  align-items:center;
  gap:14px;
}
.nav-toggle-input{
  position:absolute;
  opacity:0;
  pointer-events:none;
}
.nav-toggle-btn{
  display:none;
  width:44px;
  height:44px;
  padding:10px;
  cursor:pointer;
  border-radius:10px;
  border:1px solid var(--cloud-200);
  background:#fff;
  align-items:center;
  justify-content:center;
  flex-direction:column;
  gap:5px;
  transition:border-color .2s ease;
}
.nav-toggle-btn span{
  width:20px;
  height:2px;
  background:var(--summit-950);
  border-radius:2px;
  transition:transform .2s ease, opacity .2s ease;
}
/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:10px 26px;
  border-radius:8px;
  font-size:15px;
  font-weight:700;
  letter-spacing:.04em;
  line-height:1.2;
  transition:all .22s ease;
  border:1px solid transparent;
}
.btn-dark{
  background:var(--summit-950);
  color:#fff;
}
.btn-dark:hover{
  background:var(--summit-800);
  transform:translateY(-2px);
  box-shadow:0 12px 24px rgba(22,26,30,.18);
}
.btn-bronze{
  background:var(--bronze-500);
  color:#fff;
}
.btn-bronze:hover{
  background:var(--bronze-400);
  color:var(--summit-950);
  transform:translateY(-2px);
  box-shadow:0 12px 26px rgba(167,126,61,.24);
}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.64);
  color:#fff;
}
.btn-ghost:hover{
  border-color:var(--bronze-400);
  color:var(--bronze-400);
  background:rgba(255,255,255,.06);
  transform:translateY(-2px);
}
.btn-light{
  background:#fff;
  color:var(--summit-950);
}
.btn-light:hover{
  background:var(--bronze-100);
  border-color:var(--bronze-400);
  transform:translateY(-2px);
}
.btn-outline{
  background:transparent;
  border:1px solid rgba(255,255,255,.68);
  color:#fff;
}
.btn-outline:hover{
  border-color:var(--bronze-400);
  color:var(--bronze-400);
}
.btn:active{
  transform:translateY(0);
}
.btn-bronze:active,
.btn-dark:active{
  transform:scale(.99);
}
/* Hero */
.hero{
  position:relative;
  min-height:82vh;
  display:flex;
  align-items:center;
  overflow:hidden;
  background-image:linear-gradient(90deg, rgba(22,26,30,.72) 0%, rgba(22,26,30,.36) 52%, rgba(22,26,30,.08) 100%), url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center 30%;
  isolation:isolate;
}
.hero-content{
  position:relative;
  z-index:2;
  max-width:640px;
  padding:64px 0;
}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--bronze-400);
  font-size:13px;
  font-weight:700;
  letter-spacing:.28em;
  text-transform:uppercase;
  padding:8px 16px;
  border:1px solid rgba(201,160,99,.35);
  border-radius:999px;
  background:rgba(22,26,30,.32);
  margin-bottom:24px;
}
.hero h1{
  color:#fff;
  font-size:46px;
  line-height:1.32;
  text-shadow:0 4px 24px rgba(22,26,30,.35);
  margin-bottom:18px;
}
.hero-line{
  width:54px;
  height:3px;
  background:var(--bronze-400);
  border-radius:3px;
  margin-bottom:20px;
}
.hero-sub{
  color:rgba(238,240,244,.92);
  font-size:16px;
  max-width:540px;
  margin-bottom:34px;
}
.hero-btns{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:44px;
}
.hero-stats{
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:18px;
  max-width:520px;
  border-top:1px solid rgba(255,255,255,.18);
  padding-top:28px;
}
.hero-stat-val{
  font-size:34px;
  line-height:1.2;
  font-weight:800;
  color:#fff;
  font-variant-numeric:tabular-nums;
}
.hero-stat-val em{
  font-style:normal;
  color:var(--bronze-400);
  font-size:22px;
  margin-left:2px;
}
.hero-stat-label{
  font-size:13px;
  color:rgba(238,240,244,.72);
  letter-spacing:.08em;
  margin-top:4px;
}
.hero-scroll{
  position:absolute;
  bottom:22px;
  left:50%;
  transform:translateX(-50%);
  color:rgba(255,255,255,.45);
  font-size:12px;
  letter-spacing:.28em;
}
.hero-scroll::after{
  content:'';
  display:block;
  width:1px;
  height:38px;
  background:linear-gradient(to bottom, rgba(255,255,255,.6), rgba(255,255,255,0));
  margin:8px auto 0;
}
/* 文本区域 */
.section-head{
  display:grid;
  grid-template-columns:minmax(0, 4fr) minmax(0, 6fr);
  gap:56px;
  align-items:start;
}
.section-eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:700;
  letter-spacing:.24em;
  color:var(--bronze-500);
  margin-bottom:12px;
}
.section-title{
  font-size:32px;
  color:var(--summit-950);
  margin-bottom:16px;
}
.section-title-light{
  color:#fff;
}
.section-lead{
  color:var(--summit-600);
  font-size:16px;
  max-width:760px;
}
.quote-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:18px;
  margin-top:52px;
}
.quote-card{
  background:#fff;
  border:1px solid var(--cloud-200);
  border-radius:16px;
  padding:30px 28px 26px;
  position:relative;
  transition:all .25s ease;
}
.quote-card::before{
  content:'“';
  position:absolute;
  top:-12px;
  left:24px;
  font-size:64px;
  line-height:1;
  color:var(--bronze-100);
  font-family:Georgia, serif;
}
.quote-card:hover{
  border-color:rgba(201,160,99,.45);
  box-shadow:var(--shadow-soft);
  transform:translateY(-3px);
}
.quote-card strong{
  display:block;
  font-size:18px;
  color:var(--summit-950);
  margin-bottom:8px;
}
.quote-card p{
  color:var(--summit-600);
  font-size:15px;
}
/* 业务展示 */
.business-section{
  background:#fff;
}
.feature-row{
  display:grid;
  grid-template-columns:repeat(12, 1fr);
  gap:36px;
  align-items:center;
  padding:48px 0;
  border-bottom:1px solid var(--cloud-200);
}
.feature-row:last-child{
  border-bottom:none;
}
.feature-row.flip .feature-media{
  order:2;
}
.feature-media{
  grid-column:span 5 / span 5;
  border-radius:18px;
  overflow:hidden;
  background:var(--cloud-200);
  position:relative;
  aspect-ratio:5/4;
}
.feature-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.feature-card:hover .feature-media img{
  transform:scale(1.04);
}
.feature-body{
  grid-column:span 7 / span 7;
}
.feature-card{
  position:relative;
}
.feature-body .tag{
  margin-bottom:18px;
}
.feature-body h3{
  font-size:27px;
  margin-bottom:14px;
  line-height:1.4;
}
.feature-body p{
  color:var(--summit-600);
  font-size:15px;
  margin-bottom:24px;
}
.feature-body .link-more{
  color:var(--bronze-500);
  font-weight:700;
  font-size:15px;
  border-bottom:1px solid rgba(167,126,61,.4);
  padding-bottom:3px;
  transition:all .2s ease;
}
.feature-body .link-more:hover{
  color:var(--summit-950);
  border-color:var(--summit-950);
}
/* tag badge */
.tag{
  display:inline-flex;
  align-items:center;
  min-height:24px;
  padding:4px 12px;
  border-radius:999px;
  background:var(--bronze-100);
  color:var(--bronze-500);
  font-size:12px;
  font-weight:700;
  letter-spacing:.08em;
}
.tag-gray{
  background:rgba(220,227,233,.6);
  color:var(--summit-600);
}
/* 最新资讯 */
.news-head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:40px;
}
.link-more{
  font-weight:700;
  color:var(--bronze-500);
  font-size:15px;
  transition:all .2s ease;
}
.link-more:hover{
  color:var(--summit-950);
  transform:translateX(4px);
}
.news-grid{
  display:grid;
  grid-template-columns:minmax(0, 5fr) minmax(0, 7fr);
  gap:42px;
}
.news-feature-card{
  border-radius:20px;
  background:#fff;
  border:1px solid var(--cloud-200);
  overflow:hidden;
  transition:all .3s ease;
}
.news-feature-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-4px);
}
.news-feature-cover{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--cloud-200);
  position:relative;
}
.news-feature-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.news-feature-card:hover .news-feature-cover img{
  transform:scale(1.04);
}
.news-feature-body{
  padding:26px 26px 28px;
}
.news-feature-body .tag{
  margin-bottom:12px;
}
.news-feature-body h3 a{
  font-size:21px;
  display:inline;
  color:var(--summit-950);
  transition:color .2s;
}
.news-feature-body h3 a:hover{
  color:var(--bronze-500);
}
.news-feature-body p{
  color:var(--summit-600);
  font-size:14px;
  margin-top:8px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--summit-600);
  font-size:13px;
  margin-top:16px;
}
.news-meta time{
  font-variant-numeric:tabular-nums;
}
.news-button{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:18px;
  font-weight:700;
  font-size:14px;
  color:var(--bronze-500);
  transition:gap .2s ease;
}
.news-feature-card:hover .news-button{
  gap:10px;
}
.news-right-list{
  display:flex;
  flex-direction:column;
}
.news-row{
  display:block;
  padding:20px 4px;
  border-bottom:1px solid var(--cloud-200);
  transition:background .2s ease, padding-left .2s ease;
}
.news-row:first-child{
  padding-top:2px;
}
.news-row:hover{
  background:rgba(255,255,255,.68);
  padding-left:16px;
  border-radius:12px;
}
.news-row:last-child{
  border-bottom:none;
}
.news-row-meta{
  display:flex;
  gap:12px;
  align-items:center;
  color:var(--summit-600);
  font-size:13px;
  margin-bottom:6px;
}
.news-row h3{
  font-size:17px;
  font-weight:700;
  color:var(--summit-950);
  line-height:1.55;
  transition:color .2s;
}
.news-row:hover h3{
  color:var(--bronze-500);
}
.news-row .abstract{
  color:var(--summit-600);
  font-size:14px;
  margin-top:2px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  max-width:540px;
}
.news-empty{
  grid-column:1/-1;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  padding:64px 24px;
  background:#fff;
  border:1px dashed var(--cloud-200);
  border-radius:20px;
  color:var(--summit-600);
}
.news-empty p{
  margin-top:10px;
}
/* 里程碑深色 */
.milestone-wrap{
  position:relative;
  background-color:var(--summit-950);
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-attachment:fixed;
  color:#fff;
}
.milestone-wrap::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(to bottom, rgba(22,26,30,.94), rgba(22,26,30,.82));
}
.milestone-wrap .container{
  position:relative;
}
.milestone-list{
  margin-top:52px;
  display:grid;
  gap:6px;
}
.milestone-item{
  display:grid;
  grid-template-columns:minmax(120px, 1fr) minmax(0, 4fr);
  gap:30px;
  padding:28px 20px;
  border-bottom:1px solid rgba(255,255,255,.1);
  transition:background .3s ease;
}
.milestone-item:first-child{
  border-top:1px solid rgba(255,255,255,.1);
}
.milestone-item:hover{
  background:rgba(255,255,255,.04);
}
.milestone-num{
  color:var(--bronze-400);
  font-size:30px;
  font-weight:800;
  letter-spacing:.06em;
}
.milestone-body h3{
  font-size:20px;
  color:#fff;
}
.milestone-body p{
  color:rgba(238,240,244,.74);
  font-size:15px;
  margin-top:6px;
  max-width:720px;
}
/* 分类卡 section */
.category-grid{
  display:grid;
  grid-template-columns:repeat(2, 1fr);
  gap:28px;
}
.category-card{
  display:flex;
  flex-direction:column;
  border-radius:20px;
  background:#fff;
  border:1px solid var(--cloud-200);
  overflow:hidden;
  transition:all .3s ease;
}
.category-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-5px);
}
.category-card-cover{
  aspect-ratio:16/10;
  overflow:hidden;
  position:relative;
}
.category-card-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .45s ease;
}
.category-card:hover .category-card-cover img{
  transform:scale(1.05);
}
.category-card-cover::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(to top, rgba(22,26,30,.28), transparent 60%);
}
.category-card-body{
  padding:26px 26px 28px;
  display:flex;
  flex-direction:column;
  gap:12px;
  flex:1;
}
.category-card-body h3{
  font-size:23px;
}
.category-card-body p{
  color:var(--summit-600);
  font-size:15px;
}
.category-card-body .btn{
  align-self:flex-start;
  margin-top:auto;
}
/* faq */
.faq-layout{
  display:grid;
  grid-template-columns:minmax(0, 4fr) minmax(0, 8fr);
  gap:56px;
  align-items:start;
}
.faq-list details{
  border-bottom:1px solid var(--cloud-200);
}
.faq-list details:first-child{
  border-top:1px solid var(--cloud-200);
}
.faq-list summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  cursor:pointer;
  padding:24px 4px;
  list-style:none;
  font-size:17px;
  font-weight:700;
  color:var(--summit-950);
  transition:color .2s ease;
}
.faq-list summary::-webkit-details-marker{
  display:none;
}
.faq-list summary .faq-icon{
  width:28px;
  height:28px;
  flex:none;
  border-radius:50%;
  display:grid;
  place-items:center;
  border:1px solid var(--cloud-200);
  color:var(--bronze-500);
  font-weight:400;
  transition:all .25s ease;
}
.faq-list details[open] summary{
  color:var(--bronze-500);
}
.faq-list details[open] summary .faq-icon{
  transform:rotate(45deg);
  background:var(--bronze-500);
  color:#fff;
  border-color:var(--bronze-500);
}
.faq-list .faq-answer{
  padding:0 34px 24px 4px;
  color:var(--summit-600);
  font-size:15px;
  max-width:760px;
}
/* CTA */
.cta-zone{
  position:relative;
  background-image:url("/assets/images/backpic/back-3.png");
  background-size:cover;
  background-position:center;
  border-radius:24px;
  overflow:hidden;
  color:#fff;
  text-align:center;
  padding:84px 32px;
  margin-bottom:-140px;
}
.cta-zone::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(0deg, rgba(22,26,30,.72), rgba(22,26,30,.68));
}
.cta-zone .container{
  position:relative;
}
.cta-zone .eyebrow{
  color:var(--bronze-400);
}
.cta-zone h2{
  font-size:34px;
  margin:14px auto 14px;
  color:#fff;
}
.cta-zone p{
  color:rgba(238,240,244,.78);
  max-width:580px;
  margin:0 auto 30px;
}
.cta-btns{
  display:flex;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
}
/* footer */
.site-footer{
  background:var(--summit-950);
  color:rgba(238,240,244,.72);
  padding-top:210px;
  padding-bottom:20px;
  margin-top:-150px;
}
.footer-grid{
  display:grid;
  grid-template-columns:minmax(0, 1.3fr) repeat(3, minmax(0,1fr));
  gap:48px;
  padding-bottom:36px;
  border-bottom:1px solid rgba(255,255,255,.1);
}
.footer-brand .brand{
  margin-bottom:18px;
}
.footer-brand .brand-name{
  color:#fff;
}
.footer-brand .brand-domain{
  color:rgba(238,240,244,.4);
  border-left-color:rgba(255,255,255,.2);
}
.footer-brand p{
  color:rgba(238,240,244,.64);
  font-size:14px;
  max-width:300px;
}
.footer-title{
  font-size:16px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
}
.footer-links li{
  margin-bottom:12px;
}
.footer-links a{
  color:rgba(238,240,244,.64);
  font-size:14px;
  transition:color .2s ease;
}
.footer-links a:hover{
  color:var(--bronze-400);
}
.footer-contact p{
  color:rgba(238,240,244,.64);
  font-size:14px;
  margin-bottom:12px;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:22px;
  font-size:13px;
  color:rgba(238,240,244,.46);
  flex-wrap:wrap;
}
.footer-bottom a{
  color:rgba(238,240,244,.5);
  transition:color .2s ease;
}
.footer-bottom a:hover{
  color:var(--bronze-400);
}
/* 返回顶部 */
.to-top{
  position:fixed;
  bottom:26px;
  right:26px;
  width:44px;
  height:44px;
  border-radius:12px;
  background:var(--summit-950);
  color:var(--bronze-400);
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:0 10px 24px rgba(22,26,30,.28);
  z-index:70;
  transition:all .2s ease;
  font-size:22px;
}
.to-top:hover{
  background:var(--bronze-500);
  color:#fff;
  transform:translateY(-4px);
}
/* 文章/卡片通用 */
.cover-empty{
  background-color:var(--cloud-200);
  background-image:radial-gradient(rgba(22,26,30,.12) 1px, transparent 1px);
  background-size:16px 16px;
}
.cover-empty::after{
  content:'云顶集团';
  display:grid;
  place-items:center;
  width:100%;
  height:100%;
  color:rgba(22,26,30,.25);
  font-size:16px;
}
/* responsive */
@media (max-width: 1024px){
  .section{
    padding:72px 0;
  }
  .feature-row{
    gap:26px;
  }
  .news-grid{
    gap:28px;
  }
  .faq-layout{
    grid-template-columns:1fr;
    gap:34px;
  }
}
@media (max-width: 768px){
  body{
    font-size:15px;
  }
  .section{
    padding:58px 0;
  }
  .container{
    padding-inline:18px;
  }
  .brand-name{
    font-size:18px;
  }
  .brand-mark{
    width:34px;
    height:34px;
    font-size:18px;
  }
  .brand-domain{
    display:none;
  }
  .main-nav{
    position:fixed;
    top:0;
    right:0;
    bottom:0;
    z-index:120;
    width:min(78%, 320px);
    background:#fff;
    box-shadow:-18px 0 40px rgba(22,26,30,.18);
    transform:translateX(100%);
    transition:transform .3s ease;
    padding:72px 24px 28px;
    overflow-y:auto;
  }
  .nav-toggle-input:checked ~ .main-nav{
    transform:none;
  }
  .nav-toggle-btn{
    display:inline-flex;
    position:relative;
    z-index:140;
  }
  .nav-toggle-input:checked ~ .nav-toggle-btn span:nth-child(1){
    transform:translateY(7px) rotate(45deg);
  }
  .nav-toggle-input:checked ~ .nav-toggle-btn span:nth-child(2){
    opacity:0;
  }
  .nav-toggle-input:checked ~ .nav-toggle-btn span:nth-child(3){
    transform:translateY(-7px) rotate(-45deg);
  }
  .nav-list{
    flex-direction:column;
    align-items:flex-start;
    gap:4px;
    margin-bottom:26px;
  }
  .nav-link{
    display:block;
    padding:14px 0;
    font-size:18px;
    width:100%;
    border-bottom:1px solid var(--cloud-200);
  }
  .nav-link::after{
    display:none;
  }
  .nav-cta{
    display:block;
  }
  .nav-cta .btn{
    width:100%;
    margin-bottom:10px;
  }
  .nav-cta .btn-outline{
    display:none;
  }
  .section-head{
    grid-template-columns:1fr;
    gap:20px;
  }
  .section-title{
    font-size:27px;
  }
  .quote-grid{
    grid-template-columns:1fr;
    gap:14px;
    margin-top:32px;
  }
  .feature-row{
    grid-template-columns:1fr;
    gap:18px;
    padding:34px 0;
  }
  .feature-row.flip .feature-media{
    order:0;
  }
  .feature-media,
  .feature-body{
    grid-column:span 1 / span 1;
  }
  .feature-body h3{
    font-size:22px;
  }
  .hero{
    min-height:88vh;
  }
  .hero h1{
    font-size:32px;
  }
  .hero-content{
    padding:56px 0 72px;
  }
  .hero-stats{
    grid-template-columns:1fr;
    gap:14px;
    border-top:none;
    padding-top:8px;
  }
  .news-grid{
    grid-template-columns:1fr;
    gap:34px;
  }
  .category-grid{
    grid-template-columns:1fr;
  }
  .milestone-item{
    grid-template-columns:1fr;
    gap:8px;
    padding:20px 8px;
  }
  .milestone-num{
    font-size:23px;
  }
  .cta-zone{
    padding:56px 20px;
  }
  .cta-zone h2{
    font-size:26px;
  }
  .to-top{
    bottom:20px;
    right:16px;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:30px;
  }
  .footer-brand{
    grid-column:1/-1;
  }
}
@media (max-width: 520px){
  .topbar-right .hire-line{
    display:none;
  }
  .hero-btns .btn{
    width:100%;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:22px;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
  }
  .news-row .abstract{
    max-width:100%;
  }
}

/* roulang page: article */
:root{
  --summit-950:#171B1F;
  --summit-800:#282F36;
  --summit-600:#5A6572;
  --azure-mist-50:#F5F7FA;
  --azure-mist-100:#EEF1F5;
  --cloud-200:#D7DEE6;
  --bronze-500:#A87D4D;
  --bronze-400:#BC9161;
  --bronze-100:#F1E7DA;
  --moss-600:#4B7553;
  --surface:#FFFFFF;
  --text:#222930;
  --muted:#73808D;
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:8px;
  --shadow-card:0 2px 16px rgba(23,27,31,.06);
  --shadow-hover:0 18px 40px rgba(23,27,31,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Serif SC","Source Han Serif SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  background:var(--azure-mist-50);
  color:var(--text);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.03em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0}
button,input{font-family:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.site-header{position:relative;z-index:80}
.topbar{background:var(--summit-950);color:#C7CFD9;font-size:13px;height:36px;line-height:36px}
.topbar .container{display:flex;align-items:center;justify-content:space-between;height:100%;gap:16px;max-width:var(--container)}
.topbar-right{display:flex;align-items:center;gap:18px;white-space:nowrap}
.hire-line{color:var(--bronze-400);font-weight:600}
.nav-wrap{position:sticky;top:0;z-index:70;background:rgba(245,247,250,.82);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid rgba(215,222,230,.8)}
.nav-container{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px;max-width:var(--container)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{display:inline-flex;align-items:center;justify-content:center;width:36px;height:36px;background:var(--bronze-500);color:#fff;border-radius:10px 10px 10px 3px;font-weight:800;font-size:18px;letter-spacing:0}
.brand-name{font-weight:800;font-size:20px;letter-spacing:.04em;color:var(--summit-950)}
.brand-domain{font-size:12px;color:var(--muted);border-left:1px solid var(--cloud-200);padding-left:12px;letter-spacing:.02em}
.main-nav{display:flex;align-items:center;gap:34px}
.nav-list{display:flex;align-items:center;gap:30px}
.nav-link{position:relative;font-size:15px;font-weight:600;color:var(--summit-800);padding:24px 2px;transition:color .2s ease}
.nav-link::after{content:"";position:absolute;left:50%;bottom:14px;width:0;height:2px;background:var(--bronze-500);border-radius:2px;transform:translateX(-50%);transition:width .25s ease}
.nav-link:hover{color:var(--bronze-500)}
.nav-link:hover::after{width:22px}
.nav-link.active{color:var(--bronze-500)}
.nav-link.active::after{width:20px}
.nav-link:focus-visible,.brand:focus-visible,.footer-links a:focus-visible,.btn:focus-visible{outline:2px solid var(--bronze-400);outline-offset:3px;border-radius:4px}
.nav-cta{display:flex;align-items:center}
.nav-toggle-input,.nav-toggle-btn{display:none}
.site-footer{background:var(--summit-950);color:#C9D0DA;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:48px;padding:68px 0 40px}
.footer-brand .brand-name{color:#fff}
.footer-brand p{font-size:14px;line-height:1.9;color:#A6B0BC;max-width:280px;margin:18px 0 0}
.footer-title{font-size:15px;font-weight:700;letter-spacing:.06em;margin-bottom:20px;color:#F0F2F5}
.footer-links{list-style:none;display:grid;gap:10px}
.footer-links a{font-size:14px;color:#B9C2CD;transition:color .2s;letter-spacing:.02em}
.footer-links a:hover{color:var(--bronze-400)}
.footer-contact p{font-size:14px;margin:0 0 10px;color:#B9C2CD}
.footer-bottom{border-top:1px solid rgba(255,255,255,.08);padding:24px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:12px;color:#8895A3}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 28px;border-radius:8px;font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;transition:all .25s ease;letter-spacing:.04em}
.btn:active{transform:translateY(1px)}
.btn-bronze{background:var(--bronze-500);color:#fff}
.btn-bronze:hover{background:#B48B5A;transform:translateY(-2px);box-shadow:0 10px 24px rgba(168,125,77,.28)}
.btn-outline{border-color:#293039;color:#fff;background:rgba(255,255,255,.05)}
.btn-outline:hover{border-color:var(--bronze-400);color:var(--bronze-400);transform:translateY(-2px)}
.btn-light-outline{border-color:var(--bronze-500);color:var(--bronze-500);background:#fff}
.btn-light-outline:hover{background:var(--bronze-500);color:#fff;transform:translateY(-2px)}
.article-hero{
  position:relative;
  min-height:420px;
  display:flex;
  align-items:flex-end;
  padding:110px 0 64px;
  background:url('/assets/images/backpic/back-1.webp') center 32%/cover no-repeat;
  color:#fff;
}
.article-hero::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(17,20,24,.54) 0%,rgba(17,20,24,.35) 30%,rgba(17,20,24,.72) 80%)}
.article-hero::after{content:"";position:absolute;inset:0;background:url('data:image/svg+xml,%3Csvg width="160" height="160" viewBox="0 0 160 160" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="n"%3E%3CfeTurbulence type="fractalNoise" baseFrequency=".9" numOctaves="2" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(/%23n)" opacity=".05"/%3E%3C/svg%3E');pointer-events:none}
.article-hero .container{position:relative;z-index:2;max-width:var(--container)}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:14px;flex-wrap:wrap;font-weight:400;color:rgba(255,255,255,.68);margin-bottom:30px}
.breadcrumb a{transition:color .2s}
.breadcrumb a:hover{color:#fff}
.breadcrumb i{font-style:normal;opacity:.45}
.breadcrumb .crumb-current{color:rgba(255,255,255,.9);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(168,125,77,.18);border:1px solid rgba(220,177,127,.42);color:#F2D6B0;border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600;letter-spacing:.05em;margin-bottom:18px}
.article-hero h1{font-size:clamp(30px,4vw,46px);line-height:1.32;font-weight:850;letter-spacing:.035em;margin:0 0 20px;max-width:900px;text-wrap:balance}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:16px;font-size:14px;color:rgba(255,255,255,.72);margin-top:6px}
.meta-cat{color:var(--bronze-400)}
.meta-dot{width:4px;height:4px;border-radius:50%;background:var(--bronze-500);display:inline-block}
.article-shell{background:var(--azure-mist-50);padding:72px 0 48px}
.article-inner{max-width:880px;margin:0 auto}
.article-card{background:#fff;border:1px solid var(--cloud-200);border-radius:20px;padding:clamp(28px,5vw,64px);box-shadow:0 2px 16px rgba(23,27,31,.04)}
.prose-custom{max-width:760px;margin:0 auto}
.prose-custom p{font-size:17px;line-height:1.95;margin:0 0 1.6em;color:#36404B}
.prose-custom p.lead{font-size:18px;line-height:1.95;color:#5D6875;border-left:3px solid var(--bronze-500);border-radius:0 8px 8px 0;background:var(--azure-mist-50);padding:18px 22px;margin-bottom:32px}
.prose-custom h2{font-size:28px;line-height:1.45;font-weight:750;margin:2.1em 0 .9em;color:var(--summit-950);letter-spacing:.02em;padding-left:18px;border-left:3px solid var(--bronze-500)}
.prose-custom h3{font-size:22px;font-weight:700;margin:1.8em 0 .8em;color:var(--summit-800)}
.prose-custom h4{font-size:18px;font-weight:700;margin:1.5em 0 .5em}
.prose-custom a{color:var(--bronze-500);text-decoration:underline;text-decoration-color:rgba(168,125,77,.38);text-underline-offset:4px;text-decoration-width:2px;transition:color .2s}
.prose-custom a:hover{color:var(--bronze-400)}
.prose-custom ul,.prose-custom ol{margin:0 0 1.6em;padding-left:1.4em}
.prose-custom li{font-size:17px;line-height:1.9;margin-bottom:.5em;color:#36404B}
.prose-custom blockquote{position:relative;margin:2.2em 0;padding:22px 28px;background:var(--azure-mist-100);border-left:4px solid var(--bronze-500);border-radius:0 14px 14px 0;color:#4E5965;font-size:17px;line-height:1.9}
.prose-custom blockquote p:last-child{margin-bottom:0}
.prose-custom img{border-radius:16px;box-shadow:0 12px 28px rgba(23,27,31,.09);margin:2em auto;height:auto}
.prose-custom figure{margin:2em 0}
.prose-custom figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:.6em}
.prose-custom table{width:100%;border-collapse:collapse;margin:2em 0;font-size:15px}
.prose-custom th{background:var(--azure-mist-100);font-weight:700;color:var(--summit-950);padding:10px 12px;border:1px solid var(--cloud-200)}
.prose-custom td{padding:10px 12px;border:1px solid var(--cloud-200);line-height:1.6}
.post-tags{display:flex;align-items:center;flex-wrap:wrap;gap:10px;max-width:760px;margin:36px auto 0;padding-top:28px;border-top:1px solid var(--cloud-200)}
.post-tags .label{font-size:13px;color:var(--muted);font-weight:600}
.tag-chip{display:inline-block;background:var(--bronze-100);color:#8E6843;border-radius:999px;padding:5px 14px;font-size:13px;font-weight:600;letter-spacing:.03em;margin-right:0}
.article-sharebar{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;max-width:760px;margin:30px auto 0;padding:24px 0 6px}
.share-text{font-size:15px;color:var(--summit-800);font-weight:600}
.article-actions{display:flex;gap:12px;flex-wrap:wrap}
.article-actions .btn{height:42px;padding:0 18px;font-size:14px;border-radius:8px}
.not-found-card{background:#fff;border:1px solid var(--cloud-200);border-radius:20px;padding:80px 40px;text-align:center;max-width:640px;margin:0 auto}
.not-found-mark{width:72px;height:72px;margin:0 auto 22px;background:var(--azure-mist-100);border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:28px;color:var(--bronze-500)}
.not-found-card h2{font-size:30px;color:var(--summit-950);margin:0 0 14px;font-weight:800}
.not-found-card p{font-size:16px;color:var(--muted);margin:0 auto 30px;line-height:1.8;max-width:420px}
.related-section{background:#fff;padding:76px 0 80px;border-top:1px solid rgba(215,222,230,.7)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:42px}
.section-label{display:inline-flex;align-items:center;gap:8px;color:var(--bronze-500);font-size:14px;font-weight:600;letter-spacing:.08em;margin-bottom:8px}
.section-label::before{content:"";width:26px;height:2px;background:var(--bronze-500);border-radius:2px}
.section-head h2{font-size:30px;font-weight:800;color:var(--summit-950);margin:0;letter-spacing:.03em}
.related-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.related-card{border:1px solid var(--cloud-200);border-radius:18px;overflow:hidden;background:#fff;transition:box-shadow .3s ease,transform .3s ease}
.related-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-5px)}
.related-cover{position:relative;overflow:hidden;aspect-ratio:16/8;background:var(--azure-mist-100)}
.related-cover img{width:100%;height:100%;object-fit:cover;transition:transform .7s ease}
.related-card:hover .related-cover img{transform:scale(1.05)}
.related-body{padding:24px 24px 26px}
.related-cat{display:inline-block;font-size:12px;font-weight:700;color:#9A7042;background:var(--bronze-100);border-radius:999px;padding:4px 12px;margin-bottom:14px;letter-spacing:.05em}
.related-body h3{font-size:21px;font-weight:800;color:var(--summit-950);margin:0 0 10px;line-height:1.5;letter-spacing:.02em}
.related-body p{font-size:15px;line-height:1.8;color:var(--muted);margin:0}
.cta-strip{background:var(--summit-950);padding:72px 0;position:relative;overflow:hidden}
.cta-strip::after{content:"";position:absolute;inset:0;background:url('data:image/svg+xml,%3Csvg width="160" height="160" viewBox="0 0 160 160" xmlns="http://www.w3.org/2000/svg"%3E%3Cfilter id="n"%3E%3CfeTurbulence type="fractalNoise" baseFrequency=".9" numOctaves="2" stitchTiles="stitch"/%3E%3C/filter%3E%3Crect width="100%25" height="100%25" filter="url(/%23n)" opacity=".05"/%3E%3C/svg%3E');pointer-events:none}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:760px;margin:0 auto}
.cta-label{font-size:14px;color:var(--bronze-400);letter-spacing:.14em;font-weight:600;margin-bottom:14px}
.cta-inner h2{font-size:clamp(24px,4vw,34px);color:#fff;font-weight:800;line-height:1.5;margin:0 0 18px;letter-spacing:.02em}
.cta-inner p{font-size:16px;line-height:1.8;color:#AEB8C4;margin:0 auto 30px;max-width:560px}
.cta-btns{display:flex;justify-content:center;gap:14px;flex-wrap:wrap}
.img-placeholder{background:#D8E0E8;position:relative;display:flex;align-items:center;justify-content:center}
@media (max-width:1023px){
  .container{padding:0 20px}
  .topbar .container{gap:8px}
  .topbar-right{font-size:12px;gap:8px}
  .hire-line{display:none}
  .main-nav{display:none}
  .nav-toggle-btn{display:inline-flex;flex-direction:column;gap:5px;justify-content:center;width:44px;height:44px;cursor:pointer;align-items:center;border-radius:8px}
  .nav-toggle-btn span{width:20px;height:2px;background:var(--summit-950);border-radius:2px;transition:.3s}
  .nav-toggle-input:checked ~ .nav-toggle-btn span:nth-child(1){transform:translateY(7px) rotate(45deg)}
  .nav-toggle-input:checked ~ .nav-toggle-btn span:nth-child(2){opacity:0}
  .nav-toggle-input:checked ~ .nav-toggle-btn span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
  .nav-toggle-input:checked ~ .main-nav{
    display:flex;position:fixed;top:68px;right:16px;left:16px;background:rgba(255,255,255,.96);
    border:1px solid var(--cloud-200);border-radius:16px;flex-direction:column;gap:4px;padding:16px;
    box-shadow:0 24px 60px rgba(23,27,31,.22);z-index:100;
  }
  .nav-list{flex-direction:column;align-items:flex-start;width:100%;gap:2px}
  .nav-link{display:block;width:100%;padding:12px 10px;font-size:16px;border-radius:8px}
  .nav-link:hover{background:var(--azure-mist-50)}
  .nav-link.active{background:var(--bronze-100);color:#8E6843;border-radius:8px}
  .nav-link.active::after{display:none}
  .nav-cta{margin-top:12px;width:100%}
  .nav-cta .btn{width:100%;height:46px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .related-grid{grid-template-columns:1fr}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .topbar{font-size:12px;height:auto;line-height:1.6;padding:6px 0}
  .topbar .container{flex-direction:column;align-items:flex-start}
  .topbar-right{width:100%;justify-content:space-between;font-size:12px}
  .brand-name{font-size:18px}
  .brand-domain{display:none}
  .nav-wrap{position:relative}
  .article-hero{padding:60px 0 40px;min-height:370px}
  .article-hero h1{font-size:29px}
  .article-shell{padding:44px 0 32px}
  .article-card{padding:22px 18px;border-radius:16px}
  .prose-custom p{font-size:16px;line-height:1.9}
  .prose-custom p.lead{padding:14px 14px;font-size:16px}
  .prose-custom h2{font-size:22px;padding-left:14px}
  .related-section{padding:52px 0 56px}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .section-head h2{font-size:25px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding:48px 0 28px}
  .footer-bottom{flex-direction:column;text-align:center;justify-content:center}
  .article-actions{width:100%;flex-direction:column}
  .article-actions .btn{width:100%}
  .cta-btns{flex-direction:column}
  .cta-btns .btn{width:100%}
  .post-tags .tag-chip{flex:1 1 auto;text-align:center}
  .breadcrumb{font-size:13px}
}

/* roulang page: category1 */
:root {
    --summit-950: #171a1f;
    --summit-900: #1d2228;
    --summit-800: #232930;
    --summit-700: #2e363f;
    --summit-600: #59636e;
    --summit-500: #7c8792;
    --azure-50: #f5f7fa;
    --azure-100: #eef1f5;
    --cloud-100: #e4e8ec;
    --cloud-200: #d5dbe1;
    --bronze-600: #966f35;
    --bronze-500: #b08243;
    --bronze-400: #c89a5b;
    --bronze-300: #d9b782;
    --bronze-100: #f0e3d0;
    --moss-600: #4b7553;
    --white: #ffffff;
    --shadow-sm: 0 1px 3px rgba(23, 26, 31, 0.06);
    --shadow-md: 0 12px 32px rgba(23, 26, 31, 0.09);
    --shadow-lg: 0 18px 48px rgba(23, 26, 31, 0.12);
    --radius-lg: 20px;
    --radius-md: 16px;
    --radius-sm: 8px;
  }

  * {
    box-sizing: border-box;
  }

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

  body {
    margin: 0;
    background: var(--azure-50);
    color: #303840;
    font-family: "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    font-size: 16px;
    line-height: 1.8;
    letter-spacing: 0.03em;
    -webkit-font-smoothing: antialiased;
  }

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

  a {
    color: inherit;
    text-decoration: none;
    transition: all 0.25s ease;
  }

  button,
  input,
  textarea,
  select {
    font: inherit;
  }

  h1,
  h2,
  h3,
  h4,
  h5,
  h6 {
    font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
    color: var(--summit-950);
    margin: 0 0 0.5em;
    letter-spacing: 0.02em;
    line-height: 1.35;
  }

  p {
    margin: 0 0 1em;
  }

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

  .container {
    max-width: 1240px;
    margin: 0 auto;
    padding-left: 40px;
    padding-right: 40px;
  }

  .serif-display {
    font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "STSong", serif;
  }

  .text-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--bronze-600);
    font-weight: 600;
    text-decoration: underline;
    text-underline-offset: 5px;
    text-decoration-thickness: 1px;
    text-decoration-color: rgba(176, 130, 67, 0.4);
    transition: all 0.25s ease;
  }

  .text-link:hover {
    color: var(--bronze-500);
    text-decoration-color: var(--bronze-500);
    gap: 10px;
  }

  .eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.2em;
    color: var(--bronze-600);
    text-transform: uppercase;
    margin-bottom: 18px;
  }

  .eyebrow::before {
    content: "";
    width: 30px;
    height: 2px;
    background: var(--bronze-400);
    display: inline-block;
  }

  .section-head {
    max-width: 820px;
    margin-bottom: 60px;
  }

  .section-head.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
  }

  .section-head.center .eyebrow {
    justify-content: center;
  }

  .section-head.center .eyebrow::before {
    content: none;
  }

  .section-title {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 22px;
    color: var(--summit-950);
  }

  .section-sub {
    font-size: 16px;
    color: var(--summit-600);
    max-width: 720px;
    line-height: 1.9;
  }

  .section {
    padding-top: 96px;
    padding-bottom: 96px;
    position: relative;
    background: var(--azure-50);
  }

  .section-white {
    background: #fff;
  }

  .section-tint {
    background: var(--azure-100);
    border-top: 1px solid var(--cloud-100);
    border-bottom: 1px solid var(--cloud-100);
  }

  .section-deep {
    background: var(--summit-950);
  }

  /* button system */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-height: 48px;
    padding: 0 28px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 15px;
    font-weight: 700;
    letter-spacing: 0.05em;
    cursor: pointer;
    transition: all 0.28s ease;
    text-align: center;
  }

  .btn-bronze {
    background: var(--bronze-500);
    border-color: var(--bronze-500);
    color: #fff;
    box-shadow: 0 6px 18px rgba(176, 130, 67, 0.2);
  }

  .btn-bronze:hover {
    background: var(--bronze-400);
    border-color: var(--bronze-400);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 28px rgba(176, 130, 67, 0.3);
  }

  .btn-dark {
    background: var(--summit-900);
    border-color: var(--summit-900);
    color: #fff;
  }

  .btn-dark:hover {
    background: var(--summit-800);
    border-color: var(--summit-800);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
  }

  .btn-outline {
    background: transparent;
    border-color: var(--cloud-200);
    color: var(--summit-900);
  }

  .btn-outline:hover {
    border-color: var(--bronze-500);
    color: var(--bronze-600);
    transform: translateY(-2px);
  }

  .btn-light {
    background: rgba(255, 255, 255, 0.92);
    border-color: #fff;
    color: var(--summit-950);
  }

  .btn-light:hover {
    background: #fff;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.2);
  }

  .btn:focus-visible,
  .nav-link:focus-visible,
  footer a:focus-visible,
  .text-link:focus-visible,
  .faq-q:focus-visible,
  .topbar a:focus-visible {
    outline: 2px solid var(--bronze-400);
    outline-offset: 3px;
  }

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

  /* shared header */
  .site-header {
    position: sticky;
    top: 0;
    z-index: 100;
  }

  .topbar {
    background: var(--summit-950);
    color: rgba(245, 247, 250, 0.75);
    font-size: 14px;
  }

  .topbar .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    min-height: 36px;
    gap: 20px;
  }

  .topbar-right {
    display: inline-flex;
    align-items: center;
    gap: 14px;
    white-space: nowrap;
  }

  .hire-line {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: rgba(245, 247, 250, 0.86);
  }

  .hire-line::before {
    content: "";
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #8fbf8d;
    display: inline-block;
    flex: none;
  }

  .nav-wrap {
    background: rgba(245, 247, 250, 0.88);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--cloud-200);
    position: relative;
  }

  .nav-container {
    display: flex;
    align-items: center;
    min-height: 72px;
    gap: 20px;
  }

  .brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    flex: none;
  }

  .brand-mark {
    width: 40px;
    height: 40px;
    background: var(--bronze-500);
    border-radius: 10px;
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-family: "Noto Serif SC", serif;
    font-size: 21px;
    font-weight: 900;
    letter-spacing: 0;
    box-shadow: 0 6px 16px rgba(176, 130, 67, 0.2);
  }

  .brand-name {
    font-family: "Noto Serif SC", "Source Han Serif SC", serif;
    font-size: 19px;
    font-weight: 800;
    color: var(--summit-950);
    letter-spacing: 0.04em;
    line-height: 1.2;
  }

  .brand-domain {
    font-size: 12px;
    color: var(--summit-500);
    border-left: 1px solid var(--cloud-200);
    padding-left: 10px;
    margin-left: 4px;
    letter-spacing: 0.04em;
  }

  .main-nav {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 28px;
  }

  .nav-list {
    display: flex;
    align-items: center;
    gap: 34px;
  }

  .nav-link {
    position: relative;
    display: inline-flex;
    align-items: center;
    min-height: 72px;
    font-size: 15px;
    font-weight: 600;
    color: #39424b;
    letter-spacing: 0.06em;
    white-space: nowrap;
    transition: color 0.25s ease;
  }

  .nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 14px;
    height: 2px;
    width: 20px;
    margin: 0 auto;
    background: var(--bronze-500);
    opacity: 0;
    transform: translateY(6px);
    transition: all 0.3s ease;
  }

  .nav-link:hover::after,
  .nav-link.active::after {
    opacity: 1;
    transform: translateY(0);
  }

  .nav-link:hover,
  .nav-link.active {
    color: var(--bronze-600);
  }

  .nav-cta {
    display: flex;
    align-items: center;
  }

  .nav-cta .btn {
    min-height: 42px;
    padding: 0 22px;
    font-size: 14px;
  }

  .nav-toggle-input,
  .faq-toggle {
    position: absolute;
    opacity: 0;
    pointer-events: none;
    z-index: -1;
  }

  .nav-toggle-btn {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 9px;
    background: transparent;
    border: 1px solid transparent;
    border-radius: 8px;
    cursor: pointer;
    margin-left: auto;
  }

  .nav-toggle-btn span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--summit-900);
    border-radius: 2px;
    transition: all 0.3s ease;
  }

  .nav-toggle-btn:hover {
    border-color: var(--cloud-200);
    background: #fff;
  }

  /* page hero */
  .page-hero {
    position: relative;
    background-size: cover;
    background-position: center;
    color: #fff;
    padding-top: 88px;
    padding-bottom: 72px;
    isolation: isolate;
  }

  .page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(110deg, rgba(23, 26, 31, 0.88) 0%, rgba(23, 26, 31, 0.56) 60%, rgba(23, 26, 31, 0.18) 100%);
    z-index: -1;
  }

  .page-hero-inner {
    max-width: 800px;
  }

  .breadcrumb {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.62);
    margin-bottom: 34px;
    letter-spacing: 0.04em;
  }

  .breadcrumb a {
    color: rgba(255, 255, 255, 0.78);
    border-bottom: 1px solid transparent;
  }

  .breadcrumb a:hover {
    color: #fff;
    border-bottom-color: var(--bronze-300);
  }

  .breadcrumb-sep {
    width: 16px;
    height: 1px;
    background: rgba(255, 255, 255, 0.35);
    display: inline-block;
  }

  .page-kicker {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.18em;
    color: var(--bronze-300);
    text-transform: uppercase;
    margin-bottom: 22px;
    padding: 7px 16px;
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 40px;
  }

  .page-hero h1 {
    color: #fff;
    font-size: 58px;
    font-weight: 900;
    margin-bottom: 20px;
    line-height: 1.2;
  }

  .page-hero-description {
    font-size: 18px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.88);
    max-width: 660px;
    margin-bottom: 34px;
  }

  .hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
  }

  /* mini stats */
  .mini-stats {
    margin-top: 52px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    max-width: 820px;
  }

  .mini-stat {
    background: rgba(255, 255, 255, 0.08);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: var(--radius-sm);
    padding: 18px 20px;
    -webkit-backdrop-filter: blur(4px);
    backdrop-filter: blur(4px);
    transition: all 0.3s ease;
  }

  .mini-stat:hover {
    background: rgba(255, 255, 255, 0.14);
    transform: translateY(-2px);
  }

  .mini-stat strong {
    display: block;
    font-size: 21px;
    font-weight: 900;
    letter-spacing: 0.02em;
    color: #fff;
    margin-bottom: 4px;
    font-family: "Noto Serif SC", serif;
  }

  .mini-stat span {
    font-size: 13px;
    color: rgba(255, 255, 255, 0.76);
    line-height: 1.5;
  }

  /* quote grid */
  .quote-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
    margin-top: 56px;
  }

  .quote-block {
    background: var(--azure-50);
    border-radius: var(--radius-md);
    padding: 36px 36px 30px;
    border: 1px solid var(--cloud-100);
    position: relative;
    transition: all 0.3s ease;
  }

  .quote-block:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-4px);
    border-color: var(--bronze-300);
  }

  .quote-block::before {
    content: "“";
    font-family: "Noto Serif SC", serif;
    font-size: 58px;
    line-height: 1;
    color: var(--bronze-300);
    position: absolute;
    top: 16px;
    right: 24px;
  }

  .quote-block h3 {
    font-size: 19px;
    font-weight: 800;
    margin-bottom: 10px;
    color: var(--summit-950);
  }

  .quote-block p {
    font-size: 15px;
    color: var(--summit-600);
    margin-bottom: 0;
    line-height: 1.85;
  }

  .prose-lead {
    font-size: 17px;
    line-height: 1.9;
    color: var(--summit-800);
  }

  .feature-panel {
    display: grid;
    grid-template-columns: 1.1fr 0.9fr;
    gap: 0;
    background: var(--summit-950);
    border-radius: var(--radius-lg);
    overflow: hidden;
    color: #fff;
    margin-bottom: 44px;
    box-shadow: var(--shadow-md);
  }

  .feature-panel-content {
    padding: 52px 48px;
    display: flex;
    flex-direction: column;
    justify-content: center;
  }

  .feature-panel-content .section-sub {
    color: rgba(255, 255, 255, 0.72);
  }

  .feature-panel-media {
    min-height: 300px;
    position: relative;
    overflow: hidden;
  }

  .feature-panel-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    inset: 0;
    transition: transform 0.7s ease;
  }

  .feature-panel:hover .feature-panel-media img {
    transform: scale(1.04);
  }

  .text-caption-light {
    color: rgba(255, 255, 255, 0.82);
  }

  /* directory list */
  .directory-list {
    border-top: 1px solid var(--cloud-200);
  }

  .directory-row {
    display: grid;
    grid-template-columns: 80px 1.5fr 2fr auto;
    gap: 28px;
    align-items: center;
    padding: 34px 14px;
    border-bottom: 1px solid var(--cloud-200);
    transition: all 0.35s ease;
    border-radius: 12px;
    position: relative;
  }

  .directory-row:hover {
    background: #fff;
    box-shadow: var(--shadow-md);
    border-color: transparent;
    transform: translateX(10px);
  }

  .directory-num {
    font-family: "Noto Serif SC", serif;
    font-size: 38px;
    font-weight: 800;
    color: var(--cloud-200);
    line-height: 1;
    transition: color 0.3s ease;
  }

  .directory-row:hover .directory-num {
    color: var(--bronze-400);
  }

  .directory-title h3 {
    font-size: 22px;
    font-weight: 800;
    margin-bottom: 8px;
    color: var(--summit-950);
  }

  .directory-title .tags-list {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
  }

  .directory-desc {
    color: var(--summit-600);
    font-size: 15px;
    line-height: 1.85;
    max-width: 600px;
  }

  .directory-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    border: 1px solid var(--cloud-200);
    color: var(--summit-600);
    background: var(--azure-50);
    font-size: 20px;
    transition: all 0.3s ease;
  }

  .directory-row:hover .directory-link {
    background: var(--bronze-500);
    border-color: var(--bronze-500);
    color: #fff;
    transform: rotate(-45deg);
  }

  .tag {
    display: inline-flex;
    align-items: center;
    padding: 3px 12px;
    border-radius: 999px;
    font-size: 13px;
    font-weight: 600;
    background: var(--azure-100);
    color: var(--summit-700);
    border: 1px solid var(--cloud-100);
    letter-spacing: 0.02em;
  }

  .tag-bronze {
    background: var(--bronze-100);
    color: #80603a;
    border-color: rgba(176, 130, 67, 0.18);
  }

  /* capabilities row */
  .capability-wrap {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 64px;
    align-items: center;
  }

  .capability-list {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-top: 28px;
  }

  .capability-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 12px 0;
    border-bottom: 1px solid var(--cloud-100);
  }

  .capability-index {
    font-family: "Noto Serif SC", serif;
    font-size: 15px;
    font-weight: 800;
    color: var(--bronze-600);
    min-width: 40px;
  }

  .capability-item strong {
    font-size: 16px;
    font-weight: 700;
    color: var(--summit-950);
    display: block;
    margin-bottom: 2px;
  }

  .capability-item span {
    font-size: 14px;
    color: var(--summit-600);
  }

  .capability-media {
    border-radius: var(--radius-lg);
    overflow: hidden;
    position: relative;
    min-height: 360px;
  }

  .capability-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    position: absolute;
    inset: 0;
  }

  .scene-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
  }

  .scene-card {
    background: #fff;
    border: 1px solid var(--cloud-100);
    border-radius: var(--radius-md);
    padding: 30px 26px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
  }

  .scene-card::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--bronze-500), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
  }

  .scene-card:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-6px);
    border-color: var(--bronze-300);
  }

  .scene-card:hover::before {
    opacity: 1;
  }

  .scene-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: var(--bronze-100);
    color: var(--bronze-600);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 24px;
    margin-bottom: 22px;
    font-weight: 800;
  }

  .scene-card h3 {
    font-size: 19px;
    font-weight: 800;
    color: var(--summit-950);
    margin-bottom: 10px;
  }

  .scene-card p {
    font-size: 15px;
    color: var(--summit-600);
    line-height: 1.85;
    margin-bottom: 18px;
  }

  .scene-card .tag {
    margin: 2px 6px 0 0;
  }

  /* process steps */
  .process-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-top: 40px;
  }

  .process-step {
    text-align: center;
    padding: 36px 22px 30px;
    background: var(--azure-50);
    border: 1px solid var(--cloud-100);
    border-radius: var(--radius-md);
    position: relative;
    transition: all 0.3s ease;
  }

  .process-step:hover {
    background: #fff;
    transform: translateY(-4px);
    box-shadow: var(--shadow-md);
  }

  .step-line {
    position: absolute;
    top: 48px;
    left: 68%;
    height: 1px;
    width: calc(100% + 10px);
    background: var(--cloud-200);
  }

  .step-num {
    width: 54px;
    height: 54px;
    margin: 0 auto 18px;
    border-radius: 50%;
    background: var(--summit-950);
    color: #fff;
    font-size: 18px;
    font-weight: 800;
    display: flex;
    align-items: center;
    justify-content: center;
    font-family: "Noto Serif SC", serif;
  }

  .process-step h4 {
    font-size: 18px;
    font-weight: 800;
    color: var(--summit-950);
    margin-bottom: 10px;
  }

  .process-step p {
    font-size: 14px;
    line-height: 1.8;
    color: var(--summit-600);
    margin: 0;
  }

  /* dark statement */
  .dark-statement {
    background-size: cover;
    background-position: center;
    position: relative;
    isolation: isolate;
    color: #fff;
  }

  .dark-statement::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(110deg, rgba(23, 26, 31, 0.96) 0%, rgba(23, 26, 31, 0.82) 100%);
    z-index: -1;
  }

  .statement-inner {
    max-width: 960px;
    margin: 0 auto;
    text-align: center;
    padding: 96px 24px;
  }

  .statement-inner p {
    font-family: "Noto Serif SC", serif;
    font-size: 28px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.94);
    font-weight: 500;
    max-width: 900px;
    margin: 0 auto;
  }

  .statement-inner cite {
    display: inline-block;
    margin-top: 26px;
    font-style: normal;
    font-size: 14px;
    color: var(--bronze-300);
    letter-spacing: 0.16em;
    text-transform: uppercase;
  }

  /* faq */
  .faq-grid {
    display: grid;
    grid-template-columns: 0.9fr 1.1fr;
    gap: 60px;
  }

  .faq-list {
    border-bottom: 1px solid var(--cloud-200);
  }

  .faq-item {
    position: relative;
    border-top: 1px solid var(--cloud-200);
  }

  .faq-q {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 24px 8px;
    cursor: pointer;
    font-size: 16px;
    font-weight: 700;
    line-height: 1.6;
    letter-spacing: 0.02em;
    color: var(--summit-900);
    transition: color 0.25s ease;
  }

  .faq-q::after {
    content: "＋";
    flex: none;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    font-weight: 400;
    color: var(--bronze-600);
    background: var(--bronze-100);
    transition: transform 0.4s ease, background 0.3s ease;
  }

  .faq-item:hover .faq-q {
    color: var(--bronze-600);
  }

  .faq-item:hover .faq-q::after {
    background: var(--bronze-500);
    color: #fff;
  }

  .faq-a {
    max-height: 0;
    overflow: hidden;
    padding: 0 8px;
    font-size: 15px;
    line-height: 1.9;
    color: var(--summit-600);
    transition: max-height 0.4s ease, padding 0.4s ease;
  }

  .faq-a-inner {
    margin: 0 0 20px;
  }

  .faq-toggle:checked ~ .faq-q::after {
    content: "—";
    transform: rotate(180deg);
    background: var(--bronze-500);
    color: #fff;
  }

  .faq-toggle:checked ~ .faq-a {
    max-height: 320px;
    padding: 0 8px 22px;
  }

  .faq-left {
    position: relative;
  }

  /* news callout with id in page */
  .news-banner {
    border-radius: var(--radius-lg);
    padding: 16px;
    background: #fff;
    border: 1px solid var(--cloud-100);
    transition: box-shadow 0.3s ease, transform 0.3s ease;
  }

  .news-banner:hover {
    box-shadow: var(--shadow-md);
    transform: translateY(-3px);
  }

  .news-banner-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 30px;
    padding: 22px;
    border-radius: 14px;
    background:
      linear-gradient(110deg, var(--summit-950) 0%, var(--summit-800) 100%);
    color: #fff;
    overflow: hidden;
  }

  .news-banner-text h3 {
    color: #fff;
    font-size: 22px;
    margin-bottom: 8px;
  }

  .news-banner-text p {
    color: rgba(255, 255, 255, 0.72);
    font-size: 15px;
    line-height: 1.8;
    margin: 0;
    max-width: 720px;
  }

  .news-banner .btn {
    flex: none;
  }

  /* contact cta */
  .cta-section {
    padding-top: 86px;
    padding-bottom: 96px;
    background-size: cover;
    background-position: center;
    position: relative;
    isolation: isolate;
    color: #fff;
  }

  .cta-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(105deg, rgba(23, 26, 31, 0.93) 0%, rgba(23, 26, 31, 0.72) 100%);
    z-index: -1;
  }

  .cta-panel {
    max-width: 860px;
  }

  .cta-panel h2 {
    color: #fff;
    font-size: 40px;
    font-weight: 900;
    margin-bottom: 20px;
  }

  .cta-panel p {
    font-size: 16px;
    line-height: 1.9;
    color: rgba(255, 255, 255, 0.82);
    max-width: 720px;
    margin-bottom: 20px;
  }

  .cta-contact-line {
    display: flex;
    align-items: center;
    gap: 12px;
    color: rgba(255, 255, 255, 0.9);
    margin: 30px 0;
    font-size: 16px;
  }

  .cta-contact-line a {
    color: var(--bronze-300);
    text-decoration: underline;
    text-underline-offset: 4px;
  }

  .cta-contact-line a:hover {
    color: var(--bronze-400);
  }

  .cta-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    margin-top: 30px;
  }

  /* footer */
  .site-footer {
    background: var(--summit-950);
    color: rgba(245, 247, 250, 0.74);
    font-size: 15px;
  }

  .site-footer .container {
    padding-top: 60px;
    padding-bottom: 26px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.4fr;
    gap: 48px;
    padding-bottom: 52px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .footer-brand p {
    font-size: 15px;
    line-height: 1.85;
    color: rgba(245, 247, 250, 0.62);
    max-width: 300px;
    margin-top: 16px;
  }

  .footer-title {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    letter-spacing: 0.08em;
    margin-bottom: 18px;
  }

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

  .footer-links a {
    color: rgba(245, 247, 250, 0.68);
    font-size: 15px;
    line-height: 1.5;
    display: inline-block;
    transition: all 0.25s ease;
  }

  .footer-links a:hover {
    color: var(--bronze-300);
    transform: translateX(4px);
  }

  .footer-contact p {
    margin-bottom: 12px;
    color: rgba(245, 247, 250, 0.68);
    font-size: 15px;
    line-height: 1.8;
  }

  .footer-bottom {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 24px;
    font-size: 13px;
    color: rgba(245, 247, 250, 0.42);
  }

  .site-footer .brand .brand-name {
    color: #fff;
  }

  .site-footer .brand .brand-domain {
    color: rgba(245, 247, 250, 0.4);
    border-left-color: rgba(255, 255, 255, 0.16);
  }

  /* back to top */
  .back-to-top {
    position: fixed;
    right: 26px;
    bottom: 28px;
    z-index: 90;
    width: 46px;
    height: 46px;
    border-radius: 50%;
    background: var(--summit-950);
    border: 1px solid rgba(255, 255, 255, 0.18);
    color: #fff;
    font-size: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow-md);
    opacity: 0.86;
    transition: all 0.3s ease;
  }

  .back-to-top:hover {
    opacity: 1;
    transform: translateY(-4px);
    background: var(--bronze-500);
  }

  /* responsive */
  @media (max-width: 1024px) {
    .container {
      padding-left: 26px;
      padding-right: 26px;
    }

    .directory-row {
      grid-template-columns: 60px 1.2fr 1.6fr auto;
      gap: 20px;
    }

    .feature-panel-content {
      padding: 40px 34px;
    }

    .scene-grid {
      grid-template-columns: repeat(3, 1fr);
      gap: 18px;
    }

    .process-grid {
      grid-template-columns: repeat(2, 1fr);
      gap: 20px;
    }

    .step-line {
      display: none;
    }

    .footer-grid {
      grid-template-columns: 1fr 1fr;
      gap: 36px;
    }
  }

  @media (max-width: 900px) {
    .main-nav {
      display: none;
      position: absolute;
      top: 100%;
      left: 0;
      right: 0;
      background: var(--azure-50);
      border-bottom: 1px solid var(--cloud-200);
      box-shadow: 0 24px 40px rgba(23, 26, 31, 0.1);
      flex-direction: column;
      align-items: stretch;
      padding: 18px 26px 26px;
      margin: 0;
      gap: 18px;
      max-height: calc(100vh - 60px);
      overflow-y: auto;
    }

    .nav-toggle-input:checked ~ .main-nav {
      display: flex;
      animation: navDown 0.3s ease both;
    }

    .nav-link {
      min-height: 52px;
      padding: 0 4px;
      width: 100%;
      border-bottom: 1px solid var(--cloud-100);
      font-size: 16px;
    }

    .nav-link::after {
      bottom: 6px;
      left: 4px;
      width: 24px;
    }

    .nav-cta .btn {
      width: 100%;
      margin-top: 16px;
    }

    .nav-toggle-btn {
      display: inline-flex;
    }

    .nav-list {
      flex-direction: column;
      align-items: stretch;
      gap: 16px;
    }

    .topbar-right .hire-line {
      display: none;
    }

    .quote-grid {
      grid-template-columns: 1fr;
    }

    .feature-panel {
      grid-template-columns: 1fr;
    }

    .feature-panel-media {
      min-height: 260px;
      order: -1;
    }

    .capability-wrap {
      grid-template-columns: 1fr;
      gap: 40px;
    }

    .capability-media {
      min-height: 300px;
    }

    .scene-grid {
      grid-template-columns: 1fr 1fr;
      gap: 18px;
    }

    .directory-row {
      grid-template-columns: 50px 1fr auto;
      gap: 16px;
      padding: 26px 10px;
    }

    .directory-desc {
      grid-column: 2 / 4;
      grid-row: auto;
    }

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

    .news-banner-inner {
      flex-direction: column;
      align-items: flex-start;
    }

    .cta-panel h2 {
      font-size: 34px;
    }

    .statement-inner p {
      font-size: 24px;
    }
  }

  @media (max-width: 640px) {
    body {
      font-size: 15px;
    }

    .container {
      padding-left: 18px;
      padding-right: 18px;
    }

    .topbar .container {
      min-height: 34px;
      font-size: 13px;
    }

    .brand-name {
      font-size: 17px;
    }

    .brand-domain {
      display: none;
    }

    .brand {
      gap: 9px;
    }

    .page-hero {
      padding-top: 56px;
      padding-bottom: 52px;
    }

    .page-hero h1 {
      font-size: 40px;
    }

    .page-hero-description {
      font-size: 16px;
    }

    .mini-stats {
      grid-template-columns: 1fr;
      gap: 10px;
    }

    .section {
      padding-top: 64px;
      padding-bottom: 64px;
    }

    .section-title {
      font-size: 30px;
    }

    .quote-block {
      padding: 28px 22px 24px;
    }

    .feature-panel-content {
      padding: 34px 24px;
    }

    .scene-grid {
      grid-template-columns: 1fr;
    }

    .process-grid {
      grid-template-columns: 1fr;
    }

    .directory-row {
      grid-template-columns: 44px 1fr;
      gap: 12px;
      padding: 22px 4px;
    }

    .directory-link {
      display: none;
    }

    .directory-desc {
      grid-column: 2;
    }

    .directory-num {
      font-size: 30px;
    }

    .faq-q {
      padding: 18px 2px;
      font-size: 15px;
      gap: 14px;
    }

    .faq-a {
      font-size: 14px;
    }

    .news-banner-inner {
      padding: 20px 16px;
    }

    .footer-grid {
      grid-template-columns: 1fr;
      gap: 34px;
    }

    .footer-bottom {
      font-size: 12px;
    }

    .cta-section {
      padding-top: 60px;
      padding-bottom: 64px;
    }

    .cta-panel h2 {
      font-size: 30px;
    }

    .cta-contact-line {
      flex-direction: column;
      align-items: flex-start;
      gap: 6px;
    }

    .hero-actions,
    .cta-actions {
      flex-direction: column;
    }

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

    .main-nav {
      padding-left: 20px;
      padding-right: 20px;
    }

    .statement-inner {
      padding: 68px 12px;
    }

    .statement-inner p {
      font-size: 21px;
    }

    .back-to-top {
      right: 18px;
      bottom: 18px;
    }
  }

  @keyframes navDown {
    from {
      opacity: 0;
      transform: translateY(-10px);
    }

    to {
      opacity: 1;
      transform: translateY(0);
    }
  }

/* roulang page: category2 */
:root {
            --summit-950: #161A1E;
            --summit-800: #2D343B;
            --summit-600: #5C6670;
            --mist-50: #F5F7FA;
            --mist-100: #EAEEF2;
            --cloud-200: #D8DEE5;
            --cloud-300: #B8C2CC;
            --bronze-100: #F0E6D8;
            --bronze-400: #C59A5B;
            --bronze-500: #A87F45;
            --bronze-600: #8E6A38;
            --bronze-800: #5C4524;
            --moss-600: #4B7553;
            --radius-lg: 20px;
            --radius-md: 16px;
            --radius-sm: 8px;
            --shadow-card: 0 0 0 1px rgba(0, 0, 0, 0.03), 0 4px 20px rgba(22, 26, 30, 0.04);
            --shadow-hover: 0 16px 40px rgba(22, 26, 30, 0.12);
        }
        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: "Noto Serif SC", "Source Han Serif SC", "Source Han Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
            background-color: var(--mist-50);
            color: var(--summit-950);
            line-height: 1.8;
            letter-spacing: 0.03em;
            font-size: 16px;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: inherit;
            text-decoration: none;
            transition: color 0.3s ease;
        }
        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding-left: 24px;
            padding-right: 24px;
        }
        .site-header {
            position: relative;
            z-index: 50;
            width: 100%;
        }
        .topbar {
            background: var(--summit-950);
            color: #B8C2CC;
            font-size: 14px;
            height: 36px;
            display: flex;
            align-items: center;
        }
        .topbar .container {
            display: flex;
            justify-content: space-between;
            align-items: center;
            width: 100%;
            gap: 12px;
        }
        .topbar-right {
            display: flex;
            gap: 20px;
            align-items: center;
            white-space: nowrap;
        }
        .hire-line {
            position: relative;
            padding-right: 20px;
        }
        .hire-line::after {
            content: "";
            position: absolute;
            right: 0;
            top: 50%;
            transform: translateY(-50%);
            width: 1px;
            height: 12px;
            background: rgba(255, 255, 255, 0.25);
        }
        .nav-wrap {
            background: rgba(245, 247, 250, 0.88);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--cloud-200);
            position: sticky;
            top: 0;
            z-index: 100;
        }
        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 72px;
            gap: 24px;
        }
        .brand {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .brand-mark {
            width: 38px;
            height: 38px;
            background: var(--summit-950);
            color: #fff;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            font-weight: 800;
            letter-spacing: 0;
        }
        .brand-name {
            font-size: 19px;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--summit-950);
            white-space: nowrap;
        }
        .brand-domain {
            font-size: 12px;
            color: var(--summit-600);
            margin-left: 4px;
            padding-left: 12px;
            border-left: 1px solid var(--cloud-200);
            letter-spacing: 0;
            font-weight: 400;
            display: none;
        }
        @media (min-width: 768px) {
            .brand-domain {
                display: inline;
            }
        }
        .main-nav {
            display: flex;
            align-items: center;
            gap: 24px;
        }
        .nav-list {
            display: flex;
            align-items: center;
            gap: 32px;
        }
        .nav-link {
            position: relative;
            font-size: 15px;
            font-weight: 500;
            color: var(--summit-800);
            padding: 8px 0;
            letter-spacing: 0.05em;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: -2px;
            width: 20px;
            height: 2px;
            background: var(--bronze-500);
            border-radius: 2px;
            opacity: 0;
            transform: translateY(4px);
            transition: all 0.3s ease;
        }
        .nav-link:hover {
            color: var(--bronze-600);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            opacity: 1;
            transform: translateY(0);
        }
        .nav-link.active {
            color: var(--summit-950);
            font-weight: 600;
        }
        .nav-cta .btn {
            padding: 10px 24px;
            font-size: 15px;
        }
        .nav-toggle-input {
            display: none;
        }
        .nav-toggle-btn {
            display: none;
            width: 40px;
            height: 40px;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            gap: 5px;
            cursor: pointer;
        }
        .nav-toggle-btn span {
            width: 20px;
            height: 2px;
            background: var(--summit-950);
            border-radius: 4px;
            transition: all 0.3s ease;
        }
        @media (max-width: 900px) {
            .nav-toggle-btn {
                display: flex;
            }
            .main-nav {
                position: fixed;
                top: 0;
                right: -320px;
                width: 300px;
                height: 100vh;
                background: var(--mist-50);
                flex-direction: column;
                justify-content: flex-start;
                align-items: flex-start;
                padding: 84px 28px 24px;
                gap: 32px;
                box-shadow: -8px 0 30px rgba(22, 26, 30, 0.08);
                transition: right 0.35s ease;
                z-index: 200;
            }
            .nav-toggle-input:checked~.main-nav {
                right: 0;
            }
            .nav-list {
                flex-direction: column;
                align-items: flex-start;
                gap: 16px;
                width: 100%;
            }
            .nav-link {
                display: block;
                width: 100%;
                padding: 12px 0;
                font-size: 17px;
                border-bottom: 1px solid var(--cloud-200);
            }
            .nav-link::after {
                display: none;
            }
            .nav-cta {
                width: 100%;
                padding-top: 8px;
            }
            .nav-cta .btn {
                display: block;
                text-align: center;
                width: 100%;
            }
            .nav-toggle-input~.nav-toggle-btn {
                position: relative;
                z-index: 300;
            }
            .nav-toggle-input:checked~.nav-toggle-btn span:nth-child(1) {
                transform: rotate(45deg) translate(5px, 5px);
            }
            .nav-toggle-input:checked~.nav-toggle-btn span:nth-child(2) {
                opacity: 0;
            }
            .nav-toggle-input:checked~.nav-toggle-btn span:nth-child(3) {
                transform: rotate(-45deg) translate(5px, -5px);
            }
            .nav-toggle-input~.nav-toggle-btn::before {
                content: "";
                position: fixed;
                inset: 0;
                background: rgba(22, 26, 30, 0.4);
                opacity: 0;
                pointer-events: none;
                transition: opacity 0.3s ease;
                z-index: 250;
                display: block;
            }
            .nav-toggle-input:checked~.nav-toggle-btn::before {
                opacity: 1;
                pointer-events: auto;
            }
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border-radius: 8px;
            font-size: 16px;
            height: 48px;
            padding: 0 28px;
            font-weight: 600;
            letter-spacing: 0.05em;
            cursor: pointer;
            transition: all 0.3s ease;
            border: none;
            white-space: nowrap;
            font-family: inherit;
        }
        .btn-bronze {
            background: var(--bronze-500);
            color: #fff;
        }
        .btn-bronze:hover {
            background: var(--bronze-600);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(168, 127, 69, 0.25);
        }
        .btn-outline-light {
            background: transparent;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.7);
        }
        .btn-outline-light:hover {
            border-color: #fff;
            color: #fff;
            transform: translateY(-2px);
            background: rgba(255, 255, 255, 0.08);
        }
        .btn-dark {
            background: var(--summit-950);
            color: #fff;
        }
        .btn-dark:hover {
            background: #000;
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(22, 26, 30, 0.2);
        }
        .btn:focus-visible,
        a:focus-visible {
            outline: 2px solid var(--bronze-400);
            outline-offset: 2px;
            box-shadow: 0 0 0 4px rgba(197, 154, 91, 0.2);
        }
        .text-btn {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-weight: 500;
            color: var(--bronze-600);
            font-size: 15px;
            border-bottom: 1px solid transparent;
            padding-bottom: 2px;
            transition: all 0.3s ease;
        }
        .text-btn:hover {
            color: var(--bronze-500);
            border-bottom-color: var(--bronze-400);
            gap: 10px;
        }
        .text-btn-light {
            color: rgba(255, 255, 255, 0.85);
            border-bottom: 1px solid rgba(255, 255, 255, 0.2);
        }
        .text-btn-light:hover {
            color: #fff;
            border-bottom-color: #fff;
        }
        .badge {
            display: inline-flex;
            align-items: center;
            height: 26px;
            padding: 0 14px;
            border-radius: 100px;
            font-size: 12px;
            font-weight: 500;
            letter-spacing: 0.05em;
            background: var(--mist-100);
            color: var(--summit-600);
            white-space: nowrap;
        }
        .badge-bronze {
            background: var(--bronze-100);
            color: var(--bronze-800);
        }
        .section {
            padding: 80px 0;
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
        }
        .section-wave {
            border-bottom: 1px solid var(--cloud-200);
        }
        .section-head {
            margin-bottom: 48px;
        }
        .section-kicker {
            font-size: 14px;
            font-weight: 600;
            color: var(--bronze-600);
            letter-spacing: 0.08em;
            text-transform: uppercase;
            display: block;
            margin-bottom: 8px;
        }
        .section-title {
            font-size: 36px;
            font-weight: 800;
            letter-spacing: 0.02em;
            color: var(--summit-950);
            line-height: 1.3;
        }
        @media (max-width: 768px) {
            .section-title {
                font-size: 28px;
            }
        }
        .section-desc {
            margin-top: 12px;
            max-width: 640px;
            color: var(--summit-600);
            font-size: 16px;
        }
        /* footer */
        .site-footer {
            background: var(--summit-950);
            color: #A0AABA;
            padding-top: 64px;
            font-size: 15px;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 48px;
        }
        @media (max-width: 900px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
            }
        }
        .footer-brand {
            display: flex;
            flex-direction: column;
            gap: 14px;
            align-items: flex-start;
        }
        .footer-brand .brand {
            display: flex;
            align-items: center;
            gap: 10px;
        }
        .footer-brand .brand-mark {
            width: 32px;
            height: 32px;
            font-size: 17px;
        }
        .footer-brand .brand-name {
            color: #fff;
            font-size: 17px;
        }
        .footer-brand .brand-domain {
            color: #B8C2CC;
            border-left-color: rgba(184, 194, 204, 0.3);
        }
        .footer-brand>p {
            font-size: 14px;
            line-height: 1.8;
            color: #A0AABA;
            max-width: 280px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 700;
            color: #fff;
            margin-bottom: 20px;
            letter-spacing: 0.05em;
        }
        .footer-links {
            list-style: none;
            display: flex;
            flex-direction: column;
            gap: 10px;
        }
        .footer-links a {
            color: #A0AABA;
            font-size: 15px;
            transition: color 0.3s ease;
        }
        .footer-links a:hover {
            color: var(--bronze-400);
        }
        .footer-contact p {
            color: #A0AABA;
            font-size: 14px;
            line-height: 2;
            margin: 0;
        }
        .footer-bottom {
            display: flex;
            flex-wrap: wrap;
            justify-content: space-between;
            align-items: center;
            gap: 12px;
            padding: 20px 0;
            border-top: 1px solid rgba(160, 170, 186, 0.2);
            font-size: 13px;
            color: #8E95A0;
        }
        .category-hero {
            position: relative;
            min-height: 360px;
            display: flex;
            align-items: center;
            color: #fff;
            background-size: cover;
            background-position: center;
            isolation: isolate;
            padding: 80px 0;
        }
        .category-hero::before {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(to bottom, rgba(22, 26, 30, 0.3) 0%, rgba(22, 26, 30, 0.5) 60%, rgba(22, 26, 30, 0.68) 100%);
            z-index: -1;
            border-radius: 0 0 20px 20px;
        }
        .category-hero .hero-kicker {
            color: var(--bronze-400);
            font-weight: 600;
            letter-spacing: 0.08em;
            text-transform: uppercase;
            font-size: 14px;
            margin-bottom: 12px;
            display: inline-block;
            padding: 4px 16px;
            border-radius: 100px;
            background: rgba(22, 26, 30, 0.45);
            backdrop-filter: blur(4px);
            border: 1px solid rgba(255, 255, 255, 0.15);
        }
        .category-hero h1 {
            font-size: 44px;
            font-weight: 800;
            letter-spacing: 0.02em;
            line-height: 1.3;
            margin-bottom: 16px;
        }
        .category-hero .lead {
            font-size: 16px;
            max-width: 620px;
            color: rgba(255, 255, 255, 0.85);
            line-height: 1.8;
            margin: 0;
        }
        .hero-side-info {
            display: flex;
            align-items: center;
            gap: 12px;
            border-left: 2px solid var(--bronze-500);
            padding-left: 20px;
            margin-top: 28px;
        }
        .hero-side-info .num {
            font-size: 32px;
            font-weight: 800;
            color: #fff;
            font-family: "Georgia", "Times New Roman", serif;
            line-height: 1;
        }
        .hero-side-info .desc {
            font-size: 14px;
            color: rgba(255, 255, 255, 0.8);
            line-height: 1.5;
        }
        .featured-card {
            border-radius: 20px;
            overflow: hidden;
            box-shadow: 0 4px 20px rgba(22, 26, 30, 0.08);
            position: relative;
            display: flex;
            background: #fff;
            border: 1px solid var(--cloud-200);
            transition: transform 0.4s ease, box-shadow 0.4s ease;
        }
        .featured-card:hover {
            transform: translateY(-4px);
            box-shadow: 0 16px 40px rgba(22, 26, 30, 0.12);
        }
        .featured-card .featured-bg {
            flex: 0 0 58%;
            min-height: 300px;
            position: relative;
            background-size: cover;
            background-position: center;
            overflow: hidden;
        }
        .featured-card .featured-body {
            flex: 1;
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            gap: 16px;
        }
        @media (max-width: 768px) {
            .featured-card {
                flex-direction: column;
            }
            .featured-card .featured-bg {
                flex: none;
                min-height: 220px;
            }
            .featured-card .featured-body {
                padding: 24px;
            }
        }
        .row-list {
            border-top: 1px solid var(--cloud-200);
        }
        .row-card {
            position: relative;
            display: flex;
            align-items: center;
            gap: 28px;
            padding: 24px 8px;
            border-bottom: 1px solid var(--cloud-200);
            transition: background-color 0.3s ease, padding-left 0.3s ease;
            border-radius: 8px;
        }
        .row-card:hover {
            background: #fff;
            padding-left: 16px;
            box-shadow: 0 2px 8px rgba(22, 26, 30, 0.04);
        }
        .row-index {
            font-size: 28px;
            font-weight: 800;
            color: var(--cloud-300);
            font-family: "Georgia", serif;
            line-height: 1;
            min-width: 48px;
            transition: color 0.3s ease;
        }
        .row-card:hover .row-index {
            color: var(--bronze-500);
        }
        .row-body {
            flex: 1;
        }
        .row-body h3 {
            font-size: 18px;
            font-weight: 700;
            color: var(--summit-950);
            margin-bottom: 4px;
            line-height: 1.4;
            transition: color 0.3s ease;
        }
        .row-card:hover .row-body h3 {
            color: var(--bronze-600);
        }
        .row-body p {
            color: var(--summit-600);
            font-size: 14px;
            margin: 0;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .row-arrow {
            width: 36px;
            height: 36px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 50%;
            border: 1px solid var(--cloud-200);
            color: var(--summit-600);
            font-size: 16px;
            transition: all 0.3s ease;
            flex-shrink: 0;
        }
        .row-card:hover .row-arrow {
            border-color: var(--bronze-500);
            color: var(--bronze-500);
            transform: translateX(4px);
        }
        .quote-block {
            background: var(--summit-950);
            border-radius: 20px;
            color: #fff;
            padding: 56px;
            position: relative;
            overflow: hidden;
            text-align: center;
        }
        .quote-block::before {
            content: "“";
            position: absolute;
            top: 20px;
            left: 30px;
            font-size: 120px;
            font-family: Georgia, serif;
            color: rgba(197, 154, 91, 0.25);
            line-height: 1;
        }
        .quote-block p {
            max-width: 680px;
            font-size: 20px;
            line-height: 1.9;
            margin: 0 auto;
            letter-spacing: 0.05em;
            font-weight: 500;
        }
        @media (max-width: 640px) {
            .quote-block {
                padding: 36px 24px;
                border-radius: 16px;
            }
            .quote-block p {
                font-size: 16px;
            }
        }
        .grid-cards {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }
        @media (max-width: 900px) {
            .grid-cards {
                grid-template-columns: 1fr;
            }
        }
        .card {
            background: #fff;
            border-radius: 16px;
            border: 1px solid var(--cloud-200);
            overflow: hidden;
            display: flex;
            flex-direction: column;
            transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
        }
        .card:hover {
            transform: translateY(-4px);
            box-shadow: 0 12px 32px rgba(22, 26, 30, 0.10);
            border-color: var(--bronze-400);
        }
        .card-img {
            aspect-ratio: 16 / 10;
            background-size: cover;
            background-position: center;
            position: relative;
            background-color: var(--cloud-200);
        }
        .card-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .card-img .placeholder-mark {
            position: absolute;
            inset: 0;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--summit-600);
            font-size: 14px;
            background: radial-gradient(circle at 30% 30%, rgba(184, 194, 204, 0.4) 0%, transparent 60%);
        }
        .card-body {
            padding: 24px;
            display: flex;
            flex-direction: column;
            gap: 10px;
            flex: 1;
        }
        .card-body h3 {
            font-size: 18px;
            font-weight: 700;
            line-height: 1.5;
        }
        .card-body p {
            color: var(--summit-600);
            font-size: 14px;
            margin: 0;
            flex: 1;
        }
        .split-card {
            display: flex;
            background: #fff;
            border: 1px solid var(--cloud-200);
            border-radius: 20px;
            overflow: hidden;
            transition: all 0.3s ease;
        }
        .split-card:hover {
            box-shadow: 0 12px 32px rgba(22, 26, 30, 0.08);
            transform: translateY(-3px);
        }
        .split-card:nth-child(even) {
            flex-direction: row-reverse;
        }
        .split-card .split-img {
            flex: 0 0 42%;
            background-size: cover;
            background-position: center;
            min-height: 240px;
            position: relative;
            background-color: var(--mist-100);
        }
        .split-card .split-content {
            flex: 1;
            padding: 36px;
            display: flex;
            flex-direction: column;
            justify-content: center;
        }
        @media (max-width: 768px) {
            .split-card,
            .split-card:nth-child(even) {
                flex-direction: column;
            }
            .split-card .split-img {
                min-height: 180px;
                flex: none;
            }
            .split-card .split-content {
                padding: 24px;
            }
        }
        .timeline-item {
            position: relative;
            padding: 20px 0 20px 48px;
            border-left: 1px solid rgba(255, 255, 255, 0.16);
        }
        .timeline-item::before {
            content: "";
            position: absolute;
            left: -5px;
            top: 32px;
            width: 9px;
            height: 9px;
            border-radius: 50%;
            background: var(--bronze-500);
            border: 2px solid #fff;
        }
        .timeline-item .t-year {
            font-size: 24px;
            font-weight: 800;
            color: var(--bronze-400);
            font-family: Georgia, serif;
            line-height: 1.2;
        }
        .footer-links li a[data-slug] {
            cursor: pointer;
        }
        .bg-texture-dark {
            background-color: var(--summit-950);
            background-image: radial-gradient(circle at 80% 10%, rgba(197, 154, 91, 0.08) 0%, transparent 40%);
        }
        .brand-mark-alt {
            background: var(--bronze-500);
        }
        .faq-grid {
            display: grid;
            grid-template-columns: 1fr 1.5fr;
            gap: 56px;
        }
        @media (max-width: 768px) {
            .faq-grid {
                grid-template-columns: 1fr;
            }
        }
        .faq-title {
            position: sticky;
            top: 96px;
        }
        .faq-item {
            padding: 20px 0;
            border-bottom: 1px solid var(--cloud-200);
        }
        .faq-item summary {
            font-size: 16px;
            font-weight: 600;
            color: var(--summit-950);
            cursor: pointer;
            list-style: none;
            position: relative;
            padding-left: 28px;
            line-height: 1.6;
            transition: color 0.3s ease;
        }
        .faq-item summary::before {
            content: "+";
            position: absolute;
            left: 0;
            top: 2px;
            width: 22px;
            height: 22px;
            display: flex;
            align-items: center;
            justify-content: center;
            background: var(--bronze-100);
            color: var(--bronze-800);
            border-radius: 6px;
            font-size: 16px;
            font-weight: 600;
            line-height: 1;
            transition: transform 0.3s ease;
        }
        .faq-item summary:hover {
            color: var(--bronze-600);
        }
        .faq-item details[open] summary::before {
            content: "−";
        }
        .faq-item .faq-answer {
            padding: 12px 0 4px 28px;
            color: var(--summit-600);
            font-size: 15px;
            line-height: 1.8;
        }
        .numbers-row {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            border-top: 1px solid rgba(160, 170, 186, 0.2);
            border-bottom: 1px solid rgba(160, 170, 186, 0.2);
            padding: 24px 0;
            margin: 32px 0 0;
        }
        @media (max-width: 768px) {
            .numbers-row {
                grid-template-columns: repeat(2, 1fr);
            }
            .numbers-row:first-child {
                border-top: none;
                padding-top: 0;
            }
        }
        .nm-item {
            text-align: center;
        }
        .nm-num {
            font-size: 28px;
            font-weight: 800;
            color: var(--bronze-500);
            font-family: "Georgia", serif;
            line-height: 1.2;
        }
        .nm-text {
            font-size: 14px;
            color: var(--summit-600);
        }
        .cta-block {
            background: var(--summit-950);
            border-radius: 20px;
            padding: 56px 48px;
            display: flex;
            flex-direction: column;
            align-items: center;
            gap: 16px;
            text-align: center;
        }
        .cta-block h2 {
            color: #fff;
            font-size: 30px;
            font-weight: 800;
            margin: 0;
        }
        .cta-block p {
            color: rgba(255, 255, 255, 0.75);
            max-width: 520px;
            font-size: 15px;
            margin: 0;
        }
        .cta-actions {
            display: flex;
            gap: 16px;
            margin-top: 18px;
            flex-wrap: wrap;
            justify-content: center;
        }
        @media (max-width: 640px) {
            .cta-block {
                padding: 36px 20px;
            }
            .cta-actions .btn {
                width: 100%;
            }
        }
        .link-back {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 14px;
            color: var(--summit-600);
            transition: all 0.3s ease;
        }
        .link-back:hover {
            color: var(--bronze-600);
            gap: 12px;
        }
        .subhead-block {
            display: flex;
            flex-direction: column;
            gap: 8px;
        }
        .subhead-block .overline {
            color: var(--bronze-600);
            font-size: 14px;
            letter-spacing: 0.1em;
            text-transform: uppercase;
        }
        /* @media */
        @media (max-width: 768px) {
            .category-hero h1 {
                font-size: 30px;
            }
            .category-hero {
                min-height: 300px;
                padding: 56px 0;
            }
        }
        .news-grid {
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 24px;
        }
        @media (max-width: 900px) {
            .news-grid {
                grid-template-columns: 1fr;
            }
        }
        .sticky-nav {
            position: sticky;
            top: 72px;
            z-index: 10;
            border-bottom: 1px solid var(--cloud-200);
            background: var(--mist-50);
        }
        .sticky-nav .container {
            display: flex;
            gap: 32px;
            height: auto;
            padding-top: 8px;
            padding-bottom: 8px;
            overflow-x: auto;
        }
        .min-h-100 {
            min-height: 100vh;
        }
        .bg-mist-50 {
            background: var(--mist-50);
        }
        .bg-white {
            background: #fff;
        }
        .text-summit-600 {
            color: var(--summit-600);
        }