/* roulang page: index */
:root{
  --c-ink:#0E1410;
  --c-ink-2:#151D18;
  --c-paper:#F6F5F1;
  --c-paper-2:#EFEEE8;
  --c-card:#FFFFFF;
  --c-line:#E4E2DA;
  --c-line-dark:#26302A;
  --c-text:#232826;
  --c-muted:#5C6660;
  --c-muted-dark:#8A968E;
  --c-brand:#B9F24C;
  --c-brand-ink:#0E1410;
  --c-accent:#FF6B4A;
  --c-danger:#E5484D;
  --c-ok:#2FA36B;
  --r-card:16px;
  --r-lg:24px;
  --r-btn:12px;
  --r-sm:10px;
  --r-tag:8px;
  --r-pill:999px;
  --s-1:0 1px 2px rgba(14,20,16,.06), 0 8px 24px -12px rgba(14,20,16,.18);
  --s-2:0 2px 4px rgba(14,20,16,.07), 0 18px 40px -18px rgba(14,20,16,.24);
  --f-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --f-num:"Inter","Space Grotesk","Noto Sans SC",system-ui,sans-serif;
  --sect-desktop:96px;
  --sect-tablet:72px;
  --sect-mobile:56px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
::selection{background:var(--c-brand);color:var(--c-brand-ink);}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:var(--sect-desktop) 0;}
.section-tight{padding:56px 0;}
.section-ink{background:var(--c-ink);color:#E8EDE8;}
.section-ink .section-kicker{color:var(--c-brand);}
.section-ink h2{color:#FFFFFF;}
.section-ink .section-lead{color:var(--c-muted-dark);}
.section-paper2{background:var(--c-paper-2);}

/* ---------- 版块标题 ---------- */
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:40px;
}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--c-muted);text-transform:uppercase;
}
.section-kicker::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--c-brand);display:inline-block;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,36px);line-height:1.25;
  font-weight:800;letter-spacing:-.01em;margin-top:10px;
}
.section-lead{
  margin-top:12px;font-size:16px;line-height:1.85;color:var(--c-muted);max-width:640px;
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-text);
  padding-bottom:2px;border-bottom:1px solid var(--c-line);
  transition:color .18s ease-out,border-color .18s ease-out;
  white-space:nowrap;
}
.link-arrow span{transition:transform .18s ease-out;}
.link-arrow:hover{color:var(--c-brand-ink);border-color:var(--c-brand);}
.link-arrow:hover span{transform:translateX(4px);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;
  transition:background-color .18s ease-out,color .18s ease-out,
             border-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-primary{background:var(--c-ink);color:var(--c-paper);border-color:var(--c-ink);}
.btn-primary:hover{background:#1D2A22;border-color:#1D2A22;transform:translateY(-2px);box-shadow:var(--s-1);}
.btn-primary:active{transform:none;}
.btn-ghost{background:transparent;color:var(--c-text);border-color:var(--c-line);}
.btn-ghost:hover{border-color:var(--c-ink);transform:translateY(-2px);}
.btn-ghost:active{transform:none;}
.btn-brand{background:var(--c-brand);color:var(--c-brand-ink);border-color:var(--c-brand);}
.btn-brand:hover{background:#C9F86A;border-color:#C9F86A;transform:translateY(-2px);}
.btn-brand:active{transform:none;}
.btn-ghost-dark{background:transparent;color:#E8EDE8;border-color:var(--c-line-dark);}
.btn-ghost-dark:hover{border-color:var(--c-brand);color:var(--c-brand);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.btn-sm{height:44px;padding:0 20px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;font-weight:600;line-height:1;
}
.badge-cat{color:#B44123;background:#FFF1EC;border:1px solid rgba(255,107,74,.42);}
.badge-tag{color:var(--c-muted);background:#EFEEE8;}
.badge-lime{color:var(--c-brand-ink);background:var(--c-brand);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,245,241,.86);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease-out,background-color .2s ease-out;
}
.site-header.is-scrolled{border-bottom-color:var(--c-line);background:rgba(246,245,241,.94);}
.nav-inner{
  display:flex;align-items:center;gap:28px;
  height:64px;transition:height .2s ease-out;
}
.site-header.is-scrolled .nav-inner{height:56px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:26px;height:26px;border-radius:8px;background:var(--c-ink);
  position:relative;flex-shrink:0;
}
.logo-mark::before,.logo-mark::after{
  content:"";position:absolute;background:var(--c-brand);
}
.logo-mark::before{left:7px;top:7px;width:12px;height:2px;box-shadow:0 5px 0 var(--c-brand),0 10px 0 var(--c-brand);}
.logo-mark::after{left:7px;top:7px;width:2px;height:12px;box-shadow:5px 0 0 var(--c-brand),10px 0 0 var(--c-brand);}
.logo-text{font-size:16px;font-weight:700;letter-spacing:.02em;color:var(--c-ink);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:8px;}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--c-text);
  padding:6px 0;transition:color .18s ease-out;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--c-brand);transform:scaleX(0);transform-origin:left;
  transition:transform .18s ease-out;
}
.nav-links a:hover{color:var(--c-ink);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--c-ink);font-weight:700;}
.nav-links a.active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:14px;margin-left:auto;}
.search-wrap{position:relative;width:288px;}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-btn);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.search-box svg{flex-shrink:0;color:var(--c-muted);}
.search-box input{
  flex:1;min-width:0;border:0;outline:0;background:transparent;
  font-size:14px;color:var(--c-text);
}
.search-box input::placeholder{color:var(--c-muted-dark);}
.search-box kbd{
  font-family:var(--f-num);font-size:11px;font-weight:600;color:var(--c-muted);
  background:var(--c-paper-2);border:1px solid var(--c-line);border-radius:6px;
  padding:2px 6px;line-height:1.2;
}
.search-wrap.is-focus .search-box{border-color:var(--c-brand);box-shadow:0 0 0 2px rgba(185,242,76,.55);}
.search-panel{
  position:absolute;left:0;right:0;top:calc(100% + 8px);
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-btn);
  box-shadow:var(--s-2);padding:12px;display:none;z-index:70;
}
.search-wrap.is-focus .search-panel{display:block;}
.search-panel h3{
  font-size:12px;font-weight:700;letter-spacing:.08em;color:var(--c-muted);
  margin-bottom:8px;
}
.search-panel a{
  display:flex;align-items:center;justify-content:space-between;
  padding:9px 10px;border-radius:var(--r-sm);font-size:14px;color:var(--c-text);
  transition:background-color .16s ease-out;
}
.search-panel a:hover{background:var(--c-paper-2);}
.search-panel a span{font-size:12px;color:var(--c-muted-dark);}
.nav-divider{width:1px;height:24px;background:var(--c-line);}
.icon-btn{
  width:36px;height:36px;border-radius:var(--r-sm);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-text);transition:background-color .16s ease-out;
}
.icon-btn:hover{background:var(--c-paper-2);}
.nav-toggle{display:none;width:40px;height:40px;border-radius:var(--r-sm);align-items:center;justify-content:center;}
.nav-toggle:hover{background:var(--c-paper-2);}
.nav-toggle span{
  display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;position:relative;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:120;background:#FFFFFF;
  display:flex;flex-direction:column;
  transform:translateY(-100%);opacity:0;visibility:hidden;
  transition:transform .24s ease-out,opacity .24s ease-out,visibility .24s;
}
.drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-top{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 20px;border-bottom:1px solid var(--c-line);
}
.drawer-body{padding:20px;overflow-y:auto;flex:1;}
.drawer-body .search-box{margin-bottom:20px;}
.drawer-nav a{
  display:flex;align-items:center;justify-content:space-between;
  height:56px;font-size:20px;font-weight:600;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
}
.drawer-nav a span{color:var(--c-muted-dark);font-size:15px;}
.drawer-foot{
  padding:16px 20px 24px;border-top:1px solid var(--c-line);background:var(--c-paper);
}
.drawer-close{
  width:38px;height:38px;border-radius:var(--r-sm);display:inline-flex;
  align-items:center;justify-content:center;font-size:20px;color:var(--c-ink);
  transition:background-color .16s ease-out;
}
.drawer-close:hover{background:var(--c-paper-2);}

/* ---------- Hero ---------- */
.hero{
  background:var(--c-paper);
  padding:64px 0 72px;
  position:relative;overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  background-image:linear-gradient(var(--c-line) 1px,transparent 1px),
                   linear-gradient(90deg,var(--c-line) 1px,transparent 1px);
  background-size:32px 32px;
  -webkit-mask-image:radial-gradient(circle at 70% 30%,#000,transparent 72%);
  mask-image:radial-gradient(circle at 70% 30%,#000,transparent 72%);
  opacity:.85;pointer-events:none;
}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:56px;align-items:center;
  min-height:clamp(560px,68vh,760px);
}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 14px;
  border-radius:var(--r-pill);border:1px solid var(--c-line);
  background:var(--c-card);font-size:13px;font-weight:600;color:var(--c-muted);
}
.hero-eyebrow i{
  width:6px;height:6px;border-radius:50%;background:var(--c-brand);display:inline-block;
}
.hero h1{
  margin-top:20px;
  font-size:clamp(32px,4.4vw,56px);line-height:1.12;
  font-weight:800;letter-spacing:-.01em;color:var(--c-ink);
}
.hero-sub{
  margin-top:20px;font-size:clamp(16px,1.3vw,18px);line-height:1.85;
  color:var(--c-muted);max-width:560px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:40px;margin-top:48px;
  padding-top:28px;border-top:1px solid var(--c-line);
}
.hero-stats strong{
  display:block;font-family:var(--f-num);font-size:32px;font-weight:800;
  line-height:1.1;color:var(--c-ink);
}
.hero-stats span{display:block;margin-top:6px;font-size:14px;color:var(--c-muted);}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;height:clamp(380px,54vh,560px);object-fit:cover;
  border-radius:var(--r-lg);
}
.hero-visual::before{
  content:"";position:absolute;inset:0;border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(14,20,16,.34) 0%,rgba(14,20,16,.72) 100%);
  pointer-events:none;
}
.hero-visual-tag{
  position:absolute;left:24px;bottom:24px;z-index:2;
  font-size:14px;font-weight:600;color:#FFFFFF;letter-spacing:.02em;
  display:flex;align-items:center;gap:8px;
}
.hero-visual-tag::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--c-brand);
}
.float-card{
  position:absolute;right:-14px;top:34px;z-index:3;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--s-2);padding:16px 20px;min-width:150px;
}
.float-card strong{
  display:block;font-family:var(--f-num);font-size:28px;font-weight:800;
  line-height:1.1;color:var(--c-ink);
}
.float-card span{display:block;margin-top:4px;font-size:13px;color:var(--c-muted);}

/* ---------- 快捷入口条 ---------- */
.quickbar{background:var(--c-ink);padding:20px 0;position:relative;overflow:hidden;}
.quickbar::after{
  content:"";position:absolute;right:0;top:0;width:280px;height:100%;
  background-image:linear-gradient(var(--c-line-dark) 1px,transparent 1px),
                   linear-gradient(90deg,var(--c-line-dark) 1px,transparent 1px);
  background-size:28px 28px;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000);
  mask-image:linear-gradient(90deg,transparent,#000);
  opacity:.75;pointer-events:none;
}
.quickbar-inner{
  position:relative;z-index:1;display:flex;align-items:center;gap:16px;
  overflow-x:auto;scrollbar-width:none;
}
.quickbar-inner::-webkit-scrollbar{display:none;}
.quickbar-label{
  flex-shrink:0;font-size:13px;font-weight:700;letter-spacing:.08em;
  color:var(--c-muted-dark);margin-right:4px;white-space:nowrap;
}
.pill-link{
  flex-shrink:0;display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--c-line-dark);color:#D8E0D9;
  font-size:14px;font-weight:500;white-space:nowrap;
  transition:background-color .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.pill-link:hover{background:var(--c-brand);border-color:var(--c-brand);color:var(--c-brand-ink);}

/* ---------- 理念 / 品牌主张 ---------- */
.idea-grid{display:grid;grid-template-columns:.85fr 1.15fr;gap:72px;align-items:start;}
.idea-sticky{position:sticky;top:104px;}
.idea-sticky h2{
  font-size:clamp(24px,2.6vw,36px);line-height:1.25;font-weight:800;
  color:var(--c-ink);letter-spacing:-.01em;margin-top:10px;
}
.idea-sticky p{margin-top:16px;color:var(--c-muted);font-size:16px;}
.idea-list{display:flex;flex-direction:column;gap:40px;}
.idea-item{display:flex;gap:24px;padding-bottom:32px;border-bottom:1px solid var(--c-line);}
.idea-item:last-child{border-bottom:0;padding-bottom:0;}
.idea-num{
  font-family:var(--f-num);font-size:40px;font-weight:800;line-height:1;
  color:transparent;-webkit-text-stroke:1px var(--c-line);flex-shrink:0;min-width:64px;
}
.idea-item h3{
  font-size:20px;font-weight:700;color:var(--c-ink);
  display:flex;align-items:center;gap:10px;line-height:1.4;
}
.idea-item h3::before{
  content:"";width:8px;height:8px;border-radius:50%;
  border:2px solid var(--c-brand);background:transparent;flex-shrink:0;
}
.idea-item p{margin-top:12px;font-size:16px;line-height:1.9;color:var(--c-muted);max-width:620px;}

/* ---------- 精选内容卡（深区错位） ---------- */
.feature-grid{
  display:grid;grid-template-columns:1.1fr .95fr .95fr;gap:24px;align-items:start;
}
.feature-card{
  background:var(--c-ink-2);border:1px solid var(--c-line-dark);
  border-radius:var(--r-card);padding:20px;
  transition:transform .2s ease-out,border-color .2s ease-out;
  display:flex;flex-direction:column;gap:16px;
}
.feature-card:hover{transform:translateY(-2px);border-color:rgba(185,242,76,.45);}
.feature-card:nth-child(2){margin-top:36px;}
.feature-card:nth-child(3){margin-top:72px;}
.feature-thumb{
  border-radius:12px;overflow:hidden;aspect-ratio:4/3;background:#1D2620;
}
.feature-thumb img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .3s ease-out;
}
.feature-card:hover .feature-thumb img{transform:scale(1.03);}
.feature-card h3{
  font-size:19px;font-weight:700;line-height:1.45;color:#FFFFFF;
}
.feature-card p{
  font-size:14px;line-height:1.8;color:var(--c-muted-dark);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.feature-meta{
  display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding-top:14px;border-top:1px solid var(--c-line-dark);
  font-size:13px;color:var(--c-muted-dark);font-family:var(--f-num);
}
.feature-meta .go{color:var(--c-brand);font-size:15px;font-weight:700;}

/* ---------- 最新信息（CMS 区） ---------- */
.latest-layout{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;align-items:start;}
.ui-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--s-1);transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.ui-card:hover{transform:translateY(-2px);border-color:#CFCDC3;box-shadow:var(--s-2);}
.lead-card{display:block;overflow:hidden;padding:20px;}
.lead-thumb{border-radius:12px;overflow:hidden;aspect-ratio:16/9;background:var(--c-paper-2);}
.lead-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.lead-card:hover .lead-thumb img{transform:scale(1.03);}
.lead-body{padding-top:18px;}
.lead-body h3{
  margin-top:12px;font-size:21px;font-weight:700;line-height:1.45;color:var(--c-ink);
}
.lead-body p{
  margin-top:12px;font-size:15px;line-height:1.85;color:var(--c-muted);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.meta-line{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  margin-top:16px;font-size:13px;color:var(--c-muted);font-family:var(--f-num);
}
.meta-line .sep{width:1px;height:12px;background:var(--c-line);display:inline-block;}
.row-list{display:flex;flex-direction:column;gap:0;}
.row-item{
  display:flex;align-items:center;gap:16px;
  padding:20px 12px;border-bottom:1px solid var(--c-line);
  border-radius:12px;
  transition:background-color .18s ease-out;
}
.row-item:first-child{border-top:1px solid var(--c-line);}
.row-item:hover{background:var(--c-paper-2);}
.row-thumb{
  width:96px;height:72px;flex-shrink:0;border-radius:12px;overflow:hidden;background:var(--c-paper-2);
}
.row-thumb img{width:100%;height:100%;object-fit:cover;}
.row-body{min-width:0;flex:1;}
.row-body h3{
  font-size:17px;font-weight:700;line-height:1.45;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.row-body p{
  margin-top:6px;font-size:14px;line-height:1.7;color:var(--c-muted);
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden;
}
.row-meta{
  display:flex;align-items:center;gap:10px;margin-top:8px;
  font-size:13px;color:var(--c-muted);font-family:var(--f-num);
}
.row-arrow{
  flex-shrink:0;font-size:16px;color:var(--c-muted-dark);
  transition:transform .18s ease-out,color .18s ease-out;
}
.row-item:hover .row-arrow{transform:translateX(4px);color:var(--c-ink);}
.empty-state{
  border:1px dashed var(--c-line);border-radius:var(--r-card);
  background:var(--c-card);padding:64px 32px;text-align:center;
}
.empty-state .empty-icon{
  width:64px;height:64px;margin:0 auto 20px;border-radius:16px;
  border:1px solid var(--c-line);display:flex;align-items:center;justify-content:center;
  color:var(--c-muted-dark);
}
.empty-state p{font-size:16px;color:var(--c-muted);margin-bottom:20px;}

/* 骨架屏 */
.skeleton{
  background:linear-gradient(90deg,#EDEBE4 25%,#F6F5F1 50%,#EDEBE4 75%);
  background-size:200% 100%;animation:sk 1.4s ease-in-out infinite;border-radius:8px;
}
@keyframes sk{0%{background-position:200% 0;}100%{background-position:-200% 0;}}

/* ---------- 信任背书 ---------- */
.trust-stats{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--c-line);border-radius:0;background:transparent;
}
.trust-stats div{
  padding:32px 24px;border-right:1px solid var(--c-line);
}
.trust-stats div:last-child{border-right:0;}
.trust-stats strong{
  display:block;font-family:var(--f-num);font-size:32px;font-weight:800;
  line-height:1.1;color:var(--c-ink);
}
.trust-stats span{
  display:block;margin-top:8px;font-size:14px;color:var(--c-muted);
}
.partner-row{
  display:flex;flex-wrap:wrap;gap:16px;margin-top:32px;
}
.partner-slot{
  width:120px;height:40px;border:1px dashed #C9C7BD;border-radius:var(--r-tag);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;color:var(--c-muted-dark);letter-spacing:.04em;
  transition:border-color .18s ease-out,color .18s ease-out;
}
.partner-slot:hover{border-color:var(--c-ink);color:var(--c-muted);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-item{border-top:1px solid var(--c-line);}
.faq-item:last-child{border-bottom:1px solid var(--c-line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;font-size:17px;font-weight:600;color:var(--c-ink);
  transition:color .18s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:#3D4A42;}
.faq-icon{
  flex-shrink:0;width:22px;height:22px;position:relative;
  transition:transform .2s ease-out;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--c-ink);border-radius:2px;
  left:50%;top:50%;
}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%);}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%);}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-item[open] .faq-icon::before,.faq-item[open] .faq-icon::after{background:var(--c-accent);}
.faq-answer{
  padding:0 4px 16px;font-size:15px;line-height:1.85;color:var(--c-muted);max-width:720px;
}

/* ---------- 订阅 CTA ---------- */
.cta-section{background:var(--c-ink);color:#E8EDE8;position:relative;overflow:hidden;}
.cta-section::after{
  content:"";position:absolute;right:-60px;bottom:-60px;width:320px;height:320px;
  background-image:linear-gradient(var(--c-line-dark) 1px,transparent 1px),
                   linear-gradient(90deg,var(--c-line-dark) 1px,transparent 1px);
  background-size:30px 30px;
  -webkit-mask-image:radial-gradient(circle at 70% 70%,#000,transparent 70%);
  mask-image:radial-gradient(circle at 70% 70%,#000,transparent 70%);
  pointer-events:none;
}
.cta-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
}
.cta-grid h2{
  font-size:clamp(24px,2.6vw,36px);line-height:1.25;font-weight:800;color:#FFFFFF;
}
.cta-grid p{margin-top:14px;font-size:16px;color:var(--c-muted-dark);}
.inline-form{display:flex;gap:12px;}
.field{flex:1;min-width:0;position:relative;}
.field input{
  width:100%;height:48px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid var(--c-line-dark);background:#141B16;color:#E8EDE8;
  font-size:15px;outline:0;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field input::placeholder{color:#7A867F;}
.field input:focus{border-color:var(--c-brand);box-shadow:0 0 0 2px rgba(185,242,76,.35);}
.field.is-error input{border-color:var(--c-danger);box-shadow:0 0 0 2px rgba(229,72,77,.25);}
.form-msg{margin-top:10px;font-size:13px;min-height:20px;}
.form-msg.err{color:#FF8A85;}
.form-msg.ok{color:var(--c-brand);display:flex;align-items:center;gap:6px;}
.form-note{margin-top:12px;font-size:13px;color:#6F7B74;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#C9D1CB;padding:72px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
}
.footer-brand .logo-text{color:#FFFFFF;}
.footer-brand .logo-mark{background:#FFFFFF;}
.footer-brand .logo-mark::before,.footer-brand .logo-mark::after{background:var(--c-ink);}
.footer-brand p{
  margin-top:16px;font-size:14px;line-height:1.8;color:#8A968E;max-width:300px;
}
.footer-col h3{
  font-size:13px;font-weight:700;letter-spacing:.08em;color:#8A968E;
  text-transform:uppercase;margin-bottom:18px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{
  font-size:14px;color:#C9D1CB;transition:color .18s ease-out;
}
.footer-col a:hover{color:var(--c-brand);}
.footer-col p{font-size:14px;color:#8A968E;line-height:1.8;}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--c-line-dark);
  padding:24px 0 32px;
  display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;
  font-size:13px;color:#7A867F;
}
.footer-bottom a{color:#8A968E;transition:color .18s ease-out;}
.footer-bottom a:hover{color:var(--c-brand);}
.footer-links{display:flex;flex-wrap:wrap;gap:18px;}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .42s ease-out,transform .42s ease-out;}
.reveal.in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .search-wrap{width:240px;}
}
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:var(--sect-tablet) 0;}
  .nav-links,.search-wrap,.nav-divider{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero{padding:48px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;min-height:0;}
  .hero-visual img{height:360px;}
  .float-card{right:12px;top:16px;}
  .idea-grid{grid-template-columns:1fr;gap:36px;}
  .idea-sticky{position:static;}
  .feature-grid{grid-template-columns:1fr 1fr;}
  .feature-card:nth-child(2),.feature-card:nth-child(3){margin-top:0;}
  .feature-card:nth-child(3){grid-column:1 / -1;}
  .latest-layout{grid-template-columns:1fr;}
  .trust-stats{grid-template-columns:1fr 1fr;}
  .trust-stats div:nth-child(2){border-right:0;}
  .trust-stats div:nth-child(1),.trust-stats div:nth-child(2){border-bottom:1px solid var(--c-line);}
  .cta-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:var(--sect-mobile) 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:28px;}
  .hero h1{font-size:clamp(28px,7.4vw,38px);}
  .hero-stats{gap:24px;}
  .hero-stats strong{font-size:26px;}
  .feature-grid{grid-template-columns:1fr;}
  .feature-card:nth-child(3){grid-column:auto;}
  .float-card{padding:12px 16px;min-width:0;}
  .float-card strong{font-size:22px;}
  .row-item{padding:16px 8px;gap:12px;}
  .row-thumb{width:76px;height:58px;}
  .trust-stats{grid-template-columns:1fr;}
  .trust-stats div{border-right:0;border-bottom:1px solid var(--c-line);}
  .trust-stats div:last-child{border-bottom:0;}
  .inline-form{flex-direction:column;}
  .inline-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-brand{grid-column:1 / -1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:519px){
  .hero-cta{flex-direction:column;}
  .hero-cta .btn{width:100%;}
  .idea-item{gap:16px;}
  .idea-num{font-size:32px;min-width:48px;}
  .partner-slot{width:calc(50% - 8px);}
}

/* roulang page: article */
/* ============ 设计变量 ============ */
:root{
  --c-ink:#0E1410;
  --c-ink-2:#151D18;
  --c-paper:#F6F5F1;
  --c-card:#FFFFFF;
  --c-line:#E4E2DA;
  --c-line-dark:#26302A;
  --c-text:#232826;
  --c-muted:#5C6660;
  --c-muted-dark:#8A968E;
  --c-brand:#B9F24C;
  --c-brand-ink:#0E1410;
  --c-accent:#FF6B4A;
  --c-danger:#E5484D;
  --c-ok:#2FA36B;
  --c-soft:#EFEEE8;
  --r-sm:8px;
  --r-btn:12px;
  --r-card:16px;
  --r-lg:24px;
  --r-pill:999px;
  --s-card:0 1px 2px rgba(14,20,16,.06), 0 8px 24px -12px rgba(14,20,16,.18);
  --s-float:0 14px 36px -18px rgba(14,20,16,.32);
  --f-sans:"Inter","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --container:1200px;
  --t-fast:.16s ease-out;
  --t-base:.22s ease-out;
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-paper);
  color:var(--c-text);
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
svg{display:block}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
button{background:none;border:0;cursor:pointer}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
h1,h2,h3{letter-spacing:-.01em;line-height:1.25;font-weight:800}
::selection{background:var(--c-brand);color:var(--c-brand-ink)}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:4px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#EDEBE4}
::-webkit-scrollbar-thumb{background:#C9CFC7;border-radius:999px;border:2px solid #EDEBE4}
::-webkit-scrollbar-thumb:hover{background:#A9B3AB}

/* ============ 容器 ============ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 32px;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(246,245,241,.92);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--c-line);
  transition:background var(--t-base),box-shadow var(--t-base);
}
.site-header.is-scrolled{
  background:rgba(246,245,241,.86);
  box-shadow:0 1px 0 var(--c-line),0 10px 30px -24px rgba(14,20,16,.4);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:24px;
  height:64px;
  transition:height var(--t-base);
}
.site-header.is-scrolled .nav-inner{height:56px}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.logo-mark{
  position:relative;
  width:26px;
  height:26px;
  border-radius:8px;
  background:var(--c-ink);
  flex:0 0 auto;
}
.logo-mark::before{
  content:"";
  position:absolute;
  inset:7px;
  border:1.5px solid var(--c-brand);
  border-radius:4px;
}
.logo-mark::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  width:4px;
  height:4px;
  margin:-2px 0 0 -2px;
  border-radius:50%;
  background:var(--c-brand);
}
.logo-text{
  font-size:15.5px;
  font-weight:700;
  letter-spacing:.02em;
  color:var(--c-ink);
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
  margin-left:12px;
}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--c-muted);
  padding:6px 0;
  transition:color var(--t-fast);
}
.nav-links a:hover{color:var(--c-ink)}
.nav-links a.active{color:var(--c-ink);font-weight:600}
.nav-links a.active::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-2px;
  height:2px;
  background:var(--c-brand);
  border-radius:2px;
}
.nav-right{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:auto;
}
.search-wrap{position:relative}
.search-box{
  display:flex;
  align-items:center;
  gap:8px;
  width:260px;
  height:40px;
  padding:0 10px 0 12px;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-btn);
  color:var(--c-muted);
  transition:border-color var(--t-fast),box-shadow var(--t-fast),width var(--t-base);
}
.search-box:focus-within{
  border-color:var(--c-ink);
  box-shadow:0 0 0 2px var(--c-brand);
}
.search-box input{
  flex:1 1 auto;
  min-width:0;
  border:0;
  outline:none;
  background:transparent;
  font-size:14px;
  color:var(--c-text);
}
.search-box input::placeholder{color:#9AA49D}
.search-box kbd{
  flex:0 0 auto;
  font-family:var(--f-sans);
  font-size:11px;
  color:var(--c-muted);
  background:var(--c-soft);
  border-radius:6px;
  padding:2px 6px;
  line-height:1.5;
}
.search-panel{
  position:absolute;
  top:calc(100% + 10px);
  left:0;
  width:320px;
  padding:14px;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--s-float);
  display:none;
}
.search-wrap.is-open .search-panel{display:block}
.search-panel h3{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--c-muted);
  margin-bottom:8px;
}
.search-panel a{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:12px;
  padding:9px 10px;
  border-radius:10px;
  font-size:14px;
  font-weight:500;
  transition:background var(--t-fast),color var(--t-fast);
}
.search-panel a span{font-size:12px;color:var(--c-muted);white-space:nowrap}
.search-panel a:hover{background:var(--c-soft);color:var(--c-ink)}
.nav-divider{
  width:1px;
  height:24px;
  background:var(--c-line);
  flex:0 0 auto;
}
.icon-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:36px;
  height:36px;
  border-radius:10px;
  color:var(--c-text);
  border:1px solid transparent;
  transition:background var(--t-fast),border-color var(--t-fast);
}
.icon-btn:hover{background:var(--c-soft);border-color:var(--c-line)}
.nav-toggle{
  display:none;
  width:40px;
  height:40px;
  border-radius:10px;
  border:1px solid var(--c-line);
  align-items:center;
  justify-content:center;
}
.nav-toggle span{
  position:relative;
  width:16px;
  height:2px;
  background:var(--c-ink);
  border-radius:2px;
  transition:background var(--t-fast);
}
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";
  position:absolute;
  left:0;
  width:16px;
  height:2px;
  background:var(--c-ink);
  border-radius:2px;
  transition:transform var(--t-fast),top var(--t-fast);
}
.nav-toggle span::before{top:-5px}
.nav-toggle span::after{top:5px}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg)}
body.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  cursor:pointer;
  transition:background var(--t-fast),color var(--t-fast),border-color var(--t-fast),transform var(--t-fast),opacity var(--t-fast);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--c-ink);color:#F6F5F1}
.btn-primary:hover{background:#1D2A22;transform:translateY(-1px)}
.btn-primary:active{transform:none;background:var(--c-ink)}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-text)}
.btn-ghost:hover{border-color:var(--c-ink);background:rgba(14,20,16,.03)}
.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--c-text);
  transition:color var(--t-fast);
}
.btn-link svg{transition:transform var(--t-fast)}
.btn-link:hover{color:var(--c-brand-ink)}
.btn-link:hover svg{transform:translateX(4px)}
.on-dark .btn-primary{background:var(--c-brand);color:var(--c-brand-ink)}
.on-dark .btn-primary:hover{background:#CBFB69}
.on-dark .btn-ghost{border-color:var(--c-line-dark);color:#E7EDE8}
.on-dark .btn-ghost:hover{border-color:var(--c-brand);color:var(--c-brand)}

/* ============ 徽章 / pill ============ */
.badge{
  display:inline-flex;
  align-items:center;
  height:27px;
  padding:0 12px;
  border-radius:var(--r-pill);
  font-size:13px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
}
.badge-cat{
  color:var(--c-accent);
  border:1px solid rgba(255,107,74,.4);
  background:rgba(255,107,74,.08);
}
.badge-soft{
  color:var(--c-muted);
  background:var(--c-soft);
}
.tag{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 14px;
  border-radius:var(--r-sm);
  background:var(--c-soft);
  color:var(--c-muted);
  font-size:13.5px;
  font-weight:500;
  transition:background var(--t-fast),color var(--t-fast);
}
.tag:hover{background:var(--c-ink);color:#F6F5F1}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:#5C6660;
  padding:24px 0 0;
}
.breadcrumb a{transition:color var(--t-fast)}
.breadcrumb a:hover{color:var(--c-ink);text-decoration:underline;text-decoration-color:var(--c-brand);text-decoration-thickness:2px;text-underline-offset:3px}
.breadcrumb .sep{color:#B6BEB8}
.breadcrumb .current{color:var(--c-ink);font-weight:500}

/* ============ 文章头部 ============ */
.article-top{padding-bottom:36px;border-bottom:1px solid var(--c-line)}
.article-head{max-width:860px;padding-top:22px}
.article-head h1{
  font-size:clamp(30px,4vw,46px);
  line-height:1.18;
  font-weight:800;
  margin:16px 0 0;
  color:var(--c-ink);
}
.meta-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:20px;
  font-size:14px;
  color:var(--c-muted);
}
.meta-row .dot{
  width:4px;
  height:4px;
  border-radius:50%;
  background:#C4CBC5;
}
.meta-row .hl{color:var(--c-accent);font-weight:600}

/* ============ 正文布局 ============ */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 280px;
  gap:56px;
  align-items:start;
  padding:48px 0 96px;
}
.article-body{min-width:0}

/* ============ 长文排版 ============ */
.prose{
  max-width:760px;
  font-size:17px;
  line-height:1.95;
  color:var(--c-text);
  overflow-wrap:break-word;
}
.prose > * + *{margin-top:1.4em}
.prose p{margin:0}
.prose > p + p{margin-top:1.4em}
.prose h2{
  position:relative;
  font-size:22px;
  font-weight:700;
  line-height:1.45;
  padding-left:22px;
  margin:2.4em 0 .8em;
  color:var(--c-ink);
}
.prose h2::before{
  content:"";
  position:absolute;
  left:0;
  top:.42em;
  width:12px;
  height:12px;
  border-radius:2px;
  background:var(--c-brand);
}
.prose h3{
  font-size:18px;
  font-weight:700;
  margin:1.9em 0 .7em;
  color:var(--c-ink);
}
.prose h4{font-size:16.5px;font-weight:700;margin:1.6em 0 .5em}
.prose a{
  color:var(--c-ink);
  text-decoration:underline;
  text-decoration-color:var(--c-brand);
  text-decoration-thickness:2px;
  text-underline-offset:3px;
  transition:background var(--t-fast),color var(--t-fast);
}
.prose a:hover{background:var(--c-brand);color:var(--c-brand-ink)}
.prose ul,
.prose ol{padding-left:1.4em;margin:1.2em 0}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:.45em 0;padding-left:.2em}
.prose ul li::marker{color:var(--c-brand);font-size:1.05em}
.prose ol li::marker{color:var(--c-accent);font-weight:700}
.prose blockquote{
  margin:1.6em 0;
  padding:16px 22px;
  background:#F1F0EA;
  border-left:3px solid var(--c-brand);
  border-radius:8px;
  color:var(--c-muted);
  font-size:16px;
  line-height:1.9;
}
.prose blockquote p + p{margin-top:.8em}
.prose img{
  border-radius:12px;
  margin:1.6em auto 0;
  max-width:100%;
}
.prose figure{margin:1.6em 0}
.prose figcaption{
  margin-top:10px;
  font-size:13px;
  color:var(--c-muted);
  text-align:center;
}
.prose table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:15px;
  line-height:1.7;
}
.prose th,
.prose td{
  border:1px solid var(--c-line);
  padding:10px 14px;
  text-align:left;
  vertical-align:top;
}
.prose th{background:#F1F0EA;font-weight:600;color:var(--c-ink)}
.prose tr:hover td{background:rgba(185,242,76,.06)}
.prose code{
  background:#F1F0EA;
  border-radius:6px;
  padding:2px 6px;
  font-size:15px;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.prose pre{
  background:var(--c-ink);
  color:#E7EDE8;
  border-radius:12px;
  padding:18px 20px;
  overflow:auto;
  font-size:14px;
  line-height:1.75;
}
.prose pre code{background:transparent;padding:0;color:inherit}
.prose hr{border:0;border-top:1px solid var(--c-line);margin:2em 0}

/* ============ 空态 ============ */
.empty-state{
  max-width:760px;
  padding:56px 28px;
  border:1px dashed #C9CFC7;
  border-radius:var(--r-card);
  background:var(--c-card);
  text-align:center;
}
.empty-state .empty-art{
  width:56px;
  height:56px;
  margin:0 auto 18px;
  border-radius:14px;
  border:1.5px solid var(--c-line);
  position:relative;
}
.empty-state .empty-art::before{
  content:"";
  position:absolute;
  left:14px;
  top:16px;
  width:26px;
  height:2px;
  background:var(--c-brand);
  border-radius:2px;
  box-shadow:0 8px 0 0 #D8DCD6, 0 16px 0 0 #D8DCD6;
}
.empty-state h2{font-size:20px;margin-bottom:10px;color:var(--c-ink)}
.empty-state p{font-size:15px;color:var(--c-muted);margin-bottom:22px}

/* ============ 文末标签与返回 ============ */
.article-foot{
  max-width:760px;
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid var(--c-line);
}
.foot-label{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:var(--c-muted);
  margin-bottom:12px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.back-row{margin-top:24px}

/* ============ 相关推荐 ============ */
.related{margin-top:64px}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:24px;
}
.section-head h2{
  font-size:clamp(22px,2.4vw,30px);
  color:var(--c-ink);
}
.section-head p{font-size:14px;color:var(--c-muted);margin-top:6px}
.card{
  display:flex;
  flex-direction:column;
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--s-card);
  overflow:hidden;
  transition:transform var(--t-base),border-color var(--t-base),box-shadow var(--t-base);
}
.card:hover{
  transform:translateY(-2px);
  border-color:#CFD6CE;
  box-shadow:0 2px 4px rgba(14,20,16,.06),0 18px 36px -20px rgba(14,20,16,.3);
}
.card-thumb{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
  background:#E9E8E2;
}
.card-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s ease-out;
}
.card:hover .card-thumb img{transform:scale(1.03)}
.card-body{
  display:flex;
  flex-direction:column;
  gap:12px;
  padding:20px;
  flex:1 1 auto;
}
.card-body h3{
  font-size:18px;
  line-height:1.45;
  font-weight:700;
  color:var(--c-ink);
}
.card-body p{
  font-size:14.5px;
  line-height:1.8;
  color:var(--c-muted);
}
.card-meta{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:auto;
  padding-top:8px;
  font-size:13px;
  color:var(--c-muted);
}
.card-meta .time{color:var(--c-accent);font-weight:600}
.card-grid-3{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}

/* ============ 侧栏 ============ */
.sidebar{
  position:sticky;
  top:88px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-card{
  background:var(--c-card);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:20px;
}
.side-title{
  font-size:13px;
  font-weight:700;
  letter-spacing:.08em;
  color:var(--c-muted);
  margin-bottom:14px;
}
.side-toc li + li{margin-top:2px}
.side-toc a{
  position:relative;
  display:block;
  padding:9px 10px 9px 18px;
  border-radius:10px;
  font-size:14.5px;
  color:var(--c-text);
  transition:background var(--t-fast),color var(--t-fast);
}
.side-toc a::before{
  content:"";
  position:absolute;
  left:6px;
  top:50%;
  width:6px;
  height:6px;
  margin-top:-3px;
  border-radius:50%;
  background:#CFD6CE;
  transition:background var(--t-fast);
}
.side-toc a:hover{background:var(--c-soft)}
.side-toc a:hover::before{background:var(--c-brand)}
.side-links li + li{margin-top:4px;padding-top:4px;border-top:1px solid var(--c-line)}
.side-links a{
  display:block;
  padding:10px 8px;
  border-radius:10px;
  font-size:14.5px;
  font-weight:600;
  color:var(--c-ink);
  transition:background var(--t-fast);
}
.side-links a span{
  display:block;
  margin-top:2px;
  font-size:13px;
  font-weight:400;
  color:var(--c-muted);
}
.side-links a:hover{background:var(--c-soft)}
.side-note{
  font-size:13px;
  line-height:1.8;
  color:var(--c-muted);
}

/* ============ 订阅 CTA ============ */
.cta-band{
  background:var(--c-ink);
  color:#E7EDE8;
  padding:72px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  right:-40px;
  top:-40px;
  width:280px;
  height:280px;
  background-image:linear-gradient(var(--c-line-dark) 1px,transparent 1px),linear-gradient(90deg,var(--c-line-dark) 1px,transparent 1px);
  background-size:28px 28px;
  opacity:.5;
  -webkit-mask-image:radial-gradient(circle at 70% 30%,#000,transparent 72%);
  mask-image:radial-gradient(circle at 70% 30%,#000,transparent 72%);
  pointer-events:none;
}
.cta-inner{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,460px);
  gap:40px;
  align-items:center;
}
.cta-band h2{
  font-size:clamp(22px,2.6vw,32px);
  color:#FFFFFF;
}
.cta-band p.lead{
  margin-top:12px;
  font-size:15px;
  color:var(--c-muted-dark);
  max-width:26em;
}
.inline-form{
  display:flex;
  gap:12px;
  align-items:flex-start;
}
.inline-form .field{flex:1 1 auto;min-width:0}
.inline-form input{
  width:100%;
  height:48px;
  padding:0 16px;
  border-radius:var(--r-btn);
  border:1px solid var(--c-line-dark);
  background:#101813;
  color:#F1F4F1;
  font-size:15px;
  outline:none;
  transition:border-color var(--t-fast),box-shadow var(--t-fast);
}
.inline-form input::placeholder{color:#6E7A72}
.inline-form input:focus{
  border-color:var(--c-brand);
  box-shadow:0 0 0 2px rgba(185,242,76,.45);
}
.inline-form input.is-error{
  border-color:var(--c-danger);
  box-shadow:0 0 0 2px rgba(229,72,77,.35);
}
.form-hint{
  font-size:13px;
  color:var(--c-muted-dark);
  margin-top:10px;
}
.form-hint.error{color:#FF9A8A;display:none}
.form-hint.ok{color:var(--c-brand);display:none;align-items:center;gap:6px}
.form-hint.is-visible{display:flex}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-ink);
  color:#C9D1CB;
  padding:64px 0 0;
  border-top:1px solid var(--c-line-dark);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo-mark{background:var(--c-brand)}
.footer-brand .logo-mark::before{border-color:var(--c-ink)}
.footer-brand .logo-mark::after{background:var(--c-ink)}
.footer-brand .logo-text{color:#FFFFFF}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.85;
  color:var(--c-muted-dark);
  max-width:30ch;
}
.footer-col h3{
  font-size:13px;
  font-weight:600;
  letter-spacing:.08em;
  color:#8A968E;
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,
.footer-col p{
  font-size:14px;
  color:#C9D1CB;
  transition:color var(--t-fast);
  line-height:1.7;
  margin:0;
}
.footer-col a:hover{color:var(--c-brand)}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  padding:20px 0 28px;
  border-top:1px solid var(--c-line-dark);
  font-size:13px;
  color:#8A968E;
}
.footer-links{display:flex;flex-wrap:wrap;gap:18px}
.footer-links a{color:#C9D1CB;font-size:13px;transition:color var(--t-fast)}
.footer-links a:hover{color:var(--c-brand)}

/* ============ 动效 ============ */
.js .reveal{
  opacity:0;
  transform:translateY(12px);
  transition:opacity .5s ease-out,transform .5s ease-out;
}
.js .reveal.is-in{opacity:1;transform:none}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .search-box{width:220px}
  .nav-links{gap:22px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .nav-links{
    position:fixed;
    left:0;
    right:0;
    top:56px;
    bottom:0;
    z-index:70;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    margin:0;
    padding:16px 24px 96px;
    background:#FFFFFF;
    border-top:1px solid var(--c-line);
    overflow-y:auto;
    opacity:0;
    transform:translateY(-8px);
    pointer-events:none;
    transition:opacity var(--t-base),transform var(--t-base);
  }
  body.nav-open .nav-links{opacity:1;transform:none;pointer-events:auto}
  .nav-links a{
    font-size:20px;
    font-weight:600;
    color:var(--c-ink);
    padding:0;
    height:56px;
    display:flex;
    align-items:center;
    border-bottom:1px solid var(--c-line);
  }
  .nav-links a.active{color:var(--c-ink)}
  .nav-links a.active::after{left:auto;right:0;top:50%;bottom:auto;width:20px;height:2px;margin-top:-1px}
  .search-wrap{display:none}
  .nav-toggle{display:inline-flex}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px;padding:40px 0 72px}
  .sidebar{position:static;top:auto}
  .card-grid-3{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .cta-inner{grid-template-columns:minmax(0,1fr);gap:28px}
  .cta-band{padding:56px 0}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .nav-inner{gap:12px}
  .nav-divider,
  .icon-btn,
  .nav-right .btn{display:none}
  .breadcrumb{font-size:13px;padding-top:18px}
  .article-top{padding-bottom:28px}
  .article-head h1{font-size:clamp(26px,7vw,34px)}
  .meta-row{font-size:13px;gap:8px}
  .article-layout{padding:32px 0 56px;gap:32px}
  .prose{font-size:16.5px;line-height:1.95}
  .prose h2{font-size:20px;margin-top:2em}
  .prose h3{font-size:17.5px}
  .prose table{display:block;width:100%;overflow-x:auto;white-space:nowrap}
  .card-grid-3{grid-template-columns:minmax(0,1fr)}
  .related{margin-top:48px}
  .inline-form{flex-direction:column;align-items:stretch}
  .inline-form .btn{width:100%}
  .cta-band{padding:48px 0}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;padding-bottom:36px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:479px){
  .logo-text{font-size:14px}
  .article-head h1{font-size:24px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .js .reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
  --c-ink:#0E1410;
  --c-ink-2:#151D18;
  --c-paper:#F6F5F1;
  --c-card:#FFFFFF;
  --c-line:#E4E2DA;
  --c-line-dark:#26302A;
  --c-text:#232826;
  --c-muted:#5C6660;
  --c-muted-dark:#8A968E;
  --c-brand:#B9F24C;
  --c-brand-ink:#0E1410;
  --c-accent:#FF6B4A;
  --c-danger:#E5484D;
  --c-ok:#2FA36B;
  --r-card:16px;
  --r-lg:24px;
  --r-btn:12px;
  --r-pill:999px;
  --s-card:0 1px 2px rgba(14,20,16,.06),0 8px 24px -12px rgba(14,20,16,.18);
  --s-pop:0 18px 40px -20px rgba(14,20,16,.32);
  --f-sans:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --f-num:"Space Grotesk","Inter","Noto Sans SC",system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--f-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:-.01em;color:var(--c-ink)}
h1{font-size:clamp(32px,4.4vw,56px);line-height:1.12}
h2{font-size:clamp(24px,2.6vw,36px)}
h3{font-size:20px;line-height:1.4}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px}
::selection{background:var(--c-brand);color:var(--c-brand-ink)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:var(--c-paper);
  border-bottom:1px solid var(--c-line);
  transition:background .2s ease-out,box-shadow .2s ease-out;
}
.site-header.is-scrolled{
  background:rgba(246,245,241,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  box-shadow:0 6px 20px -18px rgba(14,20,16,.5);
}
.nav-inner{display:flex;align-items:center;gap:22px;height:64px;transition:height .2s ease-out}
.site-header.is-scrolled .nav-inner{height:56px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:16px;letter-spacing:.02em;color:var(--c-ink);white-space:nowrap}
.logo-mark{
  width:15px;height:15px;border:2px solid var(--c-ink);border-radius:3px;position:relative;flex:0 0 auto;
}
.logo-mark::after{content:"";position:absolute;inset:3px;background:var(--c-brand);border-radius:1px}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:6px}
.nav-links a{position:relative;font-size:15px;color:var(--c-text);padding:6px 2px;transition:color .16s ease-out}
.nav-links a:hover{color:var(--c-ink)}
.nav-links a.active{color:var(--c-ink);font-weight:600}
.nav-links a.active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--c-brand);border-radius:2px}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-wrap{position:relative}
.search-box{
  display:flex;align-items:center;gap:8px;width:280px;height:40px;padding:0 12px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-btn);
  transition:border-color .16s ease-out,box-shadow .16s ease-out;
}
.search-box svg{color:var(--c-muted);flex:0 0 auto}
.search-box input{flex:1;min-width:0;border:0;outline:0;background:transparent;font-size:14px;color:var(--c-text)}
.search-box input::placeholder{color:#9AA39D}
.search-box kbd{
  font-family:var(--f-num);font-size:11px;color:var(--c-muted);
  border:1px solid var(--c-line);border-radius:6px;padding:1px 6px;background:var(--c-paper);
}
.search-wrap:focus-within .search-box{border-color:var(--c-brand);box-shadow:0 0 0 2px rgba(185,242,76,.6)}
.search-panel{
  position:absolute;top:calc(100% + 10px);right:0;width:330px;padding:14px;z-index:95;
  background:#fff;border:1px solid var(--c-line);border-radius:14px;box-shadow:var(--s-pop);
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .16s ease-out,transform .16s ease-out,visibility .16s ease-out;
}
.search-wrap.open .search-panel{opacity:1;visibility:visible;transform:translateY(0)}
.search-panel h3{font-size:12px;letter-spacing:.08em;color:var(--c-muted);font-weight:600;margin-bottom:8px}
.search-panel a{display:flex;flex-direction:column;gap:1px;padding:9px 10px;border-radius:10px;font-size:14px;color:var(--c-ink);transition:background .16s ease-out}
.search-panel a span{font-size:13px;color:var(--c-muted)}
.search-panel a:hover{background:var(--c-paper)}
.nav-divider{width:1px;height:22px;background:var(--c-line)}
.icon-btn{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;color:var(--c-text);
  transition:background .16s ease-out,color .16s ease-out;
}
.icon-btn:hover{background:#EFEEE8;color:var(--c-ink)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;position:relative}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transform:translateX(-50%);
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{content:"";top:-6px}
.nav-toggle span::after{content:"";top:6px}

/* 移动端抽屉 */
.nav-drawer{
  position:fixed;inset:0;z-index:120;background:#fff;
  display:flex;flex-direction:column;gap:18px;padding:20px;
  transform:translateY(-102%);transition:transform .26s ease-out;
  overflow-y:auto;
}
.nav-drawer.open{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between}
.drawer-close{width:40px;height:40px;border-radius:10px;font-size:26px;line-height:1;color:var(--c-muted);display:grid;place-items:center}
.drawer-close:hover{background:#EFEEE8;color:var(--c-ink)}
.drawer-search{width:100%;height:48px}
.drawer-links{display:flex;flex-direction:column;border-top:1px solid var(--c-line)}
.drawer-links a{font-size:20px;font-weight:600;color:var(--c-ink);padding:16px 4px;border-bottom:1px solid var(--c-line)}
.drawer-links a.active{color:#3F5A1E}
.drawer-cta{margin-top:auto;width:100%}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .16s ease-out,background .16s ease-out,color .16s ease-out,border-color .16s ease-out,box-shadow .16s ease-out;
}
.btn-primary{background:var(--c-ink);color:#F6F5F1}
.btn-primary:hover{background:#1D2A22;transform:translateY(-1px)}
.btn-primary:active{transform:none}
.btn-primary:disabled{opacity:.45;transform:none;cursor:not-allowed}
.btn-ghost{background:transparent;border:1px solid var(--c-line);color:var(--c-ink)}
.btn-ghost:hover{border-color:var(--c-ink);transform:translateY(-1px)}
.btn-ghost:active{transform:none}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-ink)}
.btn-link span{transition:transform .16s ease-out}
.btn-link:hover span{transform:translateX(4px)}

/* ---------- 分类头图区 ---------- */
.cat-hero{background:var(--c-paper);border-bottom:1px solid var(--c-line)}
.cat-hero-inner{
  display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;
  min-height:280px;padding-top:40px;padding-bottom:40px;
}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-muted);margin-bottom:16px}
.breadcrumb a{color:var(--c-muted);transition:color .16s ease-out}
.breadcrumb a:hover{color:var(--c-ink)}
.breadcrumb .sep{color:#B6BCB6}
.breadcrumb .current{color:var(--c-ink)}
.cat-hero h1{font-size:clamp(30px,3.6vw,46px);margin-bottom:12px}
.cat-hero-lead{font-size:16px;color:var(--c-muted);max-width:460px}
.cat-hero-media{position:relative;height:220px;border-radius:var(--r-lg);overflow:hidden;background:var(--c-ink-2)}
.cat-hero-media img{width:100%;height:100%;object-fit:cover}
.cat-hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(14,20,16,.62),rgba(14,20,16,.12));
}
.cat-hero-media .media-tag{
  position:absolute;left:20px;bottom:18px;z-index:2;color:#F6F5F1;font-size:14px;
  display:flex;align-items:center;gap:8px;
}
.cat-hero-media .media-tag i{width:6px;height:6px;border-radius:50%;background:var(--c-brand);display:inline-block}

/* ---------- 板块 ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-ink{background:var(--c-ink);color:#DDE3DD}
.section-ink h2,.section-ink h3{color:#F6F5F1}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap}
.section-head p{font-size:15px;color:var(--c-muted);margin-top:10px;max-width:640px}
.section-ink .section-head p{color:var(--c-muted-dark)}
.section-label{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;
  color:var(--c-muted);margin-bottom:12px;font-weight:600;
}
.section-label::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-brand)}
.section-ink .section-label{color:var(--c-muted-dark)}

/* 筛选 pill */
.pill-row{display:flex;gap:10px;overflow-x:auto;padding:2px 0 10px;margin-bottom:26px;scrollbar-width:none}
.pill-row::-webkit-scrollbar{display:none}
.pill{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;white-space:nowrap;
  border-radius:var(--r-pill);border:1px solid var(--c-line);background:#fff;
  font-size:14px;color:var(--c-muted);transition:all .16s ease-out;
}
.pill:hover{border-color:var(--c-ink);color:var(--c-ink);background:#EFEEE8}
.pill.is-active{background:var(--c-ink);border-color:var(--c-ink);color:#F6F5F1}

/* 卡片网格 */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.ui-card{
  display:flex;flex-direction:column;background:var(--c-card);
  border:1px solid var(--c-line);border-radius:var(--r-card);
  box-shadow:var(--s-card);overflow:hidden;
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.ui-card:hover{transform:translateY(-2px);border-color:#C8CCBE;box-shadow:0 2px 4px rgba(14,20,16,.07),0 16px 32px -18px rgba(14,20,16,.28)}
.ui-card-media{display:block;aspect-ratio:16/10;overflow:hidden;background:#EFEEE8}
.ui-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .24s ease-out}
.ui-card:hover .ui-card-media img{transform:scale(1.03)}
.ui-card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.ui-card-body h3{font-size:19px}
.ui-card-body h3 a{transition:color .16s ease-out}
.ui-card-body h3 a:hover{color:#3F5A1E}
.ui-card-body p{font-size:15px;color:var(--c-muted);line-height:1.75}
.badge{
  display:inline-flex;align-items:center;align-self:flex-start;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;font-weight:500;
  border:1px solid rgba(255,107,74,.45);background:rgba(255,107,74,.08);color:#BF4227;
}
.meta-row{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:6px;font-size:13px;color:var(--c-muted);font-family:var(--f-num)}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:#C3C8C3}

/* 交叉入口 */
.cross-banner{
  background:var(--c-ink);color:#DDE3DD;border-radius:var(--r-lg);
  padding:36px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cross-banner::after{
  content:"";position:absolute;right:-40px;top:-40px;width:180px;height:180px;
  border:1px solid rgba(185,242,76,.18);border-radius:28px;transform:rotate(18deg);
}
.cross-banner h3{font-size:clamp(20px,2.2vw,26px);margin-bottom:8px}
.cross-banner p{font-size:15px;color:var(--c-muted-dark);max-width:560px}
.cross-link{display:inline-flex;align-items:center;gap:8px;color:var(--c-brand);font-weight:600;font-size:15px;position:relative;z-index:2}
.cross-link span{transition:transform .16s ease-out}
.cross-link:hover span{transform:translateX(4px)}

/* FAQ */
.faq-list{max-width:820px;margin:0 auto;border-top:1px solid var(--c-line)}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;font-size:17px;font-weight:600;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";font-size:22px;font-weight:400;color:var(--c-muted);line-height:1;
  transition:transform .2s ease-out,color .2s ease-out;
}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--c-ink)}
.faq-answer{padding:0 4px 22px;font-size:15px;line-height:1.85;color:var(--c-muted);max-width:700px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-ink);color:#C9D1CB;padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}
.footer-brand .logo{color:#F6F5F1}
.footer-brand .logo-mark{border-color:#F6F5F1}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:var(--c-muted-dark);max-width:280px}
.footer-col h3{font-size:13px;letter-spacing:.08em;color:var(--c-muted-dark);font-weight:600;margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a,.footer-col p{font-size:14px;color:#C9D1CB;transition:color .16s ease-out}
.footer-col a:hover{color:var(--c-brand)}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--c-line-dark);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-muted-dark);
}
.footer-links{display:flex;gap:18px;flex-wrap:wrap}
.footer-links a{transition:color .16s ease-out}
.footer-links a:hover{color:var(--c-brand)}

/* 进场动画 */
html.js .reveal{opacity:0;transform:translateY(12px);transition:opacity .22s ease-out,transform .22s ease-out}
html.js .reveal.is-visible{opacity:1;transform:none}
@media(prefers-reduced-motion:reduce){
  html.js .reveal{opacity:1;transform:none;transition:none}
  *{scroll-behavior:auto}
}

/* ---------- 响应式 ---------- */
@media(max-width:1024px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .nav-links,.nav-divider{display:none}
  .search-wrap{display:none}
  .nav-toggle{display:grid;place-items:center}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .cat-hero-inner{grid-template-columns:1fr;gap:24px;padding-top:32px;padding-bottom:32px;min-height:auto}
  .cat-hero-media{height:200px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media(max-width:760px){
  .nav-inner{height:58px}
  .icon-btn{display:none}
  .card-grid{grid-template-columns:1fr;gap:16px}
  .cross-banner{padding:26px}
}
@media(max-width:640px){
  body{font-size:15.5px}
  .container{padding:0 20px}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  .cat-hero-media{height:170px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:24px}
  .footer-brand{grid-column:1 / -1}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .search-panel{width:min(330px,calc(100vw - 40px))}
}

/* roulang page: category2 */
:root{
  --c-ink:#0E1410;
  --c-ink-2:#151D18;
  --c-paper:#F6F5F1;
  --c-card:#FFFFFF;
  --c-line:#E4E2DA;
  --c-line-dark:#26302A;
  --c-text:#232826;
  --c-muted:#5C6660;
  --c-muted-dark:#8A968E;
  --c-brand:#B9F24C;
  --c-brand-deep:#6E9A20;
  --c-brand-ink:#0E1410;
  --c-accent:#FF6B4A;
  --c-danger:#E5484D;
  --c-ok:#2FA36B;
  --r-card:16px;
  --r-lg:24px;
  --r-btn:12px;
  --s-card:0 1px 2px rgba(14,20,16,.06), 0 8px 24px -12px rgba(14,20,16,.18);
  --s-hover:0 2px 4px rgba(14,20,16,.07), 0 16px 32px -16px rgba(14,20,16,.24);
  --header-h:64px;
  --font: "Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,Arial,sans-serif;
  --font-num:"Inter","Space Grotesk","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
a:hover{color:inherit;}
button,input,select,textarea{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-brand);outline-offset:2px;border-radius:6px;}
::selection{background:var(--c-brand);color:var(--c-brand-ink);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:96px 0;}
.section-sm{padding:56px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--c-muted);text-transform:uppercase;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-brand);}
.h2{font-size:clamp(24px,2.6vw,36px);line-height:1.25;font-weight:800;letter-spacing:-.01em;margin-top:12px;}
.lead{font-size:16px;line-height:1.9;color:var(--c-muted);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap;}
.link-more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;border-bottom:1px solid var(--c-line);padding-bottom:2px;transition:border-color .18s ease-out;}
.link-more span{transition:transform .18s ease-out;}
.link-more:hover{border-color:var(--c-ink);}
.link-more:hover span{transform:translateX(4px);}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:90;
  background:var(--c-paper);
  border-bottom:1px solid transparent;
  transition:background .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.site-header.scrolled{
  background:rgba(246,245,241,.86);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  border-bottom-color:var(--c-line);
}
.nav-inner{height:var(--header-h);display:flex;align-items:center;gap:22px;transition:height .2s ease-out;}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:20px;height:20px;border:2px solid var(--c-ink);border-radius:5px;position:relative;flex-shrink:0;
}
.logo-mark::before,.logo-mark::after{content:"";position:absolute;background:var(--c-brand);}
.logo-mark::before{left:50%;top:-4px;bottom:-4px;width:2px;transform:translateX(-50%);}
.logo-mark::after{top:50%;left:-4px;right:-4px;height:2px;transform:translateY(-50%);}
.logo-text{font-size:16px;font-weight:700;letter-spacing:.02em;color:var(--c-ink);white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:28px;margin-left:6px;}
.nav-links a{position:relative;font-size:15px;color:var(--c-text);padding:6px 0;white-space:nowrap;transition:color .18s ease-out;}
.nav-links a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--c-brand);transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out;}
.nav-links a:hover::after,.nav-links a.active::after{transform:scaleX(1);}
.nav-links a.active{font-weight:700;color:var(--c-ink);}
.nav-right{margin-left:auto;display:flex;align-items:center;gap:14px;}
.nav-divider{width:1px;height:22px;background:var(--c-line);}
.icon-btn{
  width:36px;height:36px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  color:var(--c-text);transition:background .18s ease-out,color .18s ease-out;
}
.icon-btn:hover{background:#EFEEE8;color:var(--c-ink);}
.search-wrap{position:relative;}
.search-box{
  display:flex;align-items:center;gap:8px;height:40px;padding:0 12px;
  width:290px;background:#fff;border:1px solid var(--c-line);border-radius:12px;
  color:var(--c-muted);transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.search-box input{flex:1;min-width:0;border:0;outline:none;background:transparent;font-size:14px;color:var(--c-text);}
.search-box input::placeholder{color:var(--c-muted);}
.search-box kbd{
  font-family:var(--font-num);font-size:11px;color:var(--c-muted);
  border:1px solid var(--c-line);border-radius:6px;padding:1px 5px;background:var(--c-paper);
}
.search-wrap:focus-within .search-box{border-color:var(--c-brand);box-shadow:0 0 0 2px var(--c-brand);}
.search-panel{
  position:absolute;right:0;top:calc(100% + 10px);width:340px;background:#fff;
  border:1px solid var(--c-line);border-radius:16px;box-shadow:var(--s-card);padding:14px;
  opacity:0;visibility:hidden;transform:translateY(6px);transition:all .18s ease-out;z-index:95;
}
.search-wrap:focus-within .search-panel{opacity:1;visibility:visible;transform:translateY(0);}
.search-panel h3{font-size:13px;letter-spacing:.08em;color:var(--c-muted);font-weight:600;margin-bottom:10px;}
.search-panel a{
  display:flex;flex-direction:column;gap:2px;padding:10px 12px;border-radius:10px;
  font-size:14px;font-weight:600;color:var(--c-text);transition:background .18s ease-out;
}
.search-panel a span{font-size:13px;font-weight:400;color:var(--c-muted);}
.search-panel a:hover{background:var(--c-paper);}
.nav-toggle{display:none;width:40px;height:40px;border-radius:10px;position:relative;}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transform:translateX(-50%);
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}
.site-header.menu-open .nav-toggle span{background:transparent;}
.site-header.menu-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg);}
.site-header.menu-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg);}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .18s ease-out;white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--c-ink);color:var(--c-paper);}
.btn-primary:hover{background:#1D2A22;transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;border-color:var(--c-line);color:var(--c-text);}
.btn-ghost:hover{border-color:var(--c-ink);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-brand{background:var(--c-brand);color:var(--c-brand-ink);}
.btn-brand:hover{background:#C9FF5F;transform:translateY(-2px);}
.btn-brand:active{transform:translateY(0);}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-text);}
.btn-text span{transition:transform .18s ease-out;}
.btn-text:hover span{transform:translateX(4px);}

/* ============ anchor bar ============ */
.anchor-bar{
  position:sticky;top:var(--header-h);z-index:70;
  background:rgba(246,245,241,.94);
  -webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease-out;
}
.anchor-bar.stuck{border-bottom-color:var(--c-line);}
.anchor-inner{display:flex;gap:10px;overflow-x:auto;padding:12px 0;scrollbar-width:none;}
.anchor-inner::-webkit-scrollbar{display:none;}
.chip{
  flex-shrink:0;display:inline-flex;align-items:center;height:32px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--c-line);font-size:14px;color:var(--c-text);
  transition:all .18s ease-out;
}
.chip:hover{background:var(--c-ink);border-color:var(--c-ink);color:var(--c-brand);}

/* ============ crumbs ============ */
.crumbs{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--c-muted);flex-wrap:wrap;}
.crumbs a{color:var(--c-muted);transition:color .18s ease-out;}
.crumbs a:hover{color:var(--c-ink);}
.crumbs .sep{color:#C4C2B9;}
.crumbs .now{color:var(--c-text);font-weight:600;}

/* ============ intro ============ */
.cat-intro{padding:48px 0 56px;}
.intro-grid{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;margin-top:28px;}
.intro-title{font-size:clamp(32px,4.4vw,56px);line-height:1.12;font-weight:800;letter-spacing:-.01em;color:var(--c-ink);}
.intro-text{font-size:16px;line-height:1.9;color:var(--c-muted);margin-top:20px;max-width:560px;}
.intro-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.badge{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:14px;line-height:1;border:1px solid var(--c-line);background:#fff;color:var(--c-muted);
}
.badge-accent{border-color:rgba(255,107,74,.5);background:rgba(255,107,74,.08);color:#C8462A;}
.intro-figure{
  position:relative;border-radius:var(--r-lg);overflow:hidden;aspect-ratio:16/11;
  background:var(--c-ink);
}
.intro-figure img{width:100%;height:100%;object-fit:cover;}
.intro-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,20,16,.22),rgba(14,20,16,.72));
}
.intro-figure figcaption{
  position:absolute;left:24px;right:24px;bottom:22px;z-index:2;color:#fff;
  font-size:14px;line-height:1.7;
}
.intro-figure .float-card{
  position:absolute;right:20px;top:20px;z-index:2;background:rgba(255,255,255,.94);
  border-radius:14px;padding:12px 16px;min-width:132px;
}
.intro-figure .float-card b{
  display:block;font-family:var(--font-num);font-size:28px;font-weight:800;line-height:1.1;color:var(--c-ink);
}
.intro-figure .float-card span{font-size:13px;color:var(--c-muted);}

/* ============ dynamic list ============ */
.list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:28px;flex-wrap:wrap;}
.dyn-list{border-top:1px solid var(--c-line);}
.dyn-row{
  position:relative;display:grid;grid-template-columns:56px minmax(0,1fr) auto 132px 28px;
  gap:20px;align-items:center;min-height:88px;padding:22px 20px;border-bottom:1px solid var(--c-line);
  border-radius:12px;transition:background .18s ease-out,transform .18s ease-out;
}
.dyn-row:hover{background:#F6F5F1;}
.dyn-index{
  font-family:var(--font-num);font-size:20px;font-weight:700;line-height:1;
  color:var(--c-brand-deep);letter-spacing:.04em;
}
.dyn-body h3{font-size:19px;font-weight:700;line-height:1.4;color:var(--c-ink);}
.dyn-body h3 a::after{content:"";position:absolute;inset:0;border-radius:12px;}
.dyn-body h3 a:hover{color:var(--c-brand-deep);}
.dyn-body p{font-size:14px;line-height:1.8;color:var(--c-muted);margin-top:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.dyn-tag{
  font-size:13px;color:#C8462A;border:1px solid rgba(255,107,74,.45);background:rgba(255,107,74,.07);
  border-radius:999px;padding:3px 10px;white-space:nowrap;
}
.dyn-thumb{width:120px;height:80px;border-radius:12px;overflow:hidden;background:#EFEEE8;}
.dyn-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out;}
.dyn-row:hover .dyn-thumb img{transform:scale(1.03);}
.dyn-arrow{font-size:18px;color:var(--c-muted);transition:transform .18s ease-out,color .18s ease-out;text-align:right;}
.dyn-row:hover .dyn-arrow{transform:translateX(4px);color:var(--c-ink);}

/* ============ rhythm / facts ============ */
.facts{background:#EFEEE8;}
.facts-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:36px;}
.fact{border:1px solid #DCDAD1;border-radius:0;padding:26px 24px;background:transparent;}
.fact b{display:block;font-family:var(--font-num);font-size:32px;font-weight:800;line-height:1.2;color:var(--c-ink);}
.fact span{display:block;font-size:14px;color:var(--c-muted);margin-top:8px;}

/* ============ cross links ============ */
.cross-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.cross-card{
  display:flex;flex-direction:column;gap:14px;padding:32px;border-radius:var(--r-lg);
  border:1px solid var(--c-line);background:#fff;transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.cross-card:hover{transform:translateY(-2px);box-shadow:var(--s-hover);border-color:#C9C7BD;}
.cross-card h3{font-size:21px;font-weight:700;color:var(--c-ink);}
.cross-card p{font-size:15px;color:var(--c-muted);line-height:1.85;}
.cross-card.dark{
  background:var(--c-ink);border-color:var(--c-line-dark);color:#fff;
}
.cross-card.dark h3{color:#fff;}
.cross-card.dark p{color:var(--c-muted-dark);}
.cross-card.dark .link-more{border-color:var(--c-line-dark);color:var(--c-brand);}
.cross-card.dark .link-more:hover{border-color:var(--c-brand);}

/* ============ faq ============ */
.faq-wrap{max-width:820px;margin:0 auto;}
.faq-list{border-top:1px solid var(--c-line);margin-top:36px;}
.faq-list details{border-bottom:1px solid var(--c-line);}
.faq-list summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:17px;font-weight:600;color:var(--c-ink);transition:color .18s ease-out;
}
.faq-list summary::-webkit-details-marker{display:none;}
.faq-list summary:hover{color:var(--c-brand-deep);}
.faq-icon{
  position:relative;flex-shrink:0;width:22px;height:22px;border:1px solid var(--c-line);border-radius:999px;
  transition:transform .2s ease-out,border-color .2s ease-out;background:#fff;
}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;top:50%;left:50%;background:var(--c-ink);transform:translate(-50%,-50%);}
.faq-icon::before{width:10px;height:1.6px;}
.faq-icon::after{width:1.6px;height:10px;transition:opacity .2s ease-out;}
.faq-list details[open] .faq-icon{transform:rotate(45deg);border-color:var(--c-brand);}
.faq-answer{padding:0 0 20px;font-size:15px;line-height:1.85;color:var(--c-muted);max-width:700px;}

/* ============ cta ============ */
.cta{background:var(--c-ink);color:#fff;position:relative;overflow:hidden;}
.cta::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(to right,rgba(185,242,76,.18) 1px,transparent 1px),
                   linear-gradient(to bottom,rgba(185,242,76,.18) 1px,transparent 1px);
  background-size:56px 56px;
  -webkit-mask-image:radial-gradient(circle at 88% 12%,#000 0%,transparent 62%);
  mask-image:radial-gradient(circle at 88% 12%,#000 0%,transparent 62%);
  pointer-events:none;
}
.cta-grid{position:relative;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.cta h2{font-size:clamp(24px,2.6vw,36px);line-height:1.25;font-weight:800;color:#fff;}
.cta .cta-note{font-size:15px;color:var(--c-muted-dark);margin-top:14px;max-width:420px;}
.inline-form{display:flex;gap:12px;align-items:flex-start;}
.field{flex:1;min-width:0;}
.field input{
  width:100%;height:48px;padding:0 16px;border-radius:var(--r-btn);
  border:1px solid var(--c-line-dark);background:var(--c-ink-2);color:#fff;
  font-size:15px;transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field input::placeholder{color:var(--c-muted-dark);}
.field input:focus{outline:none;border-color:var(--c-brand);box-shadow:0 0 0 2px rgba(185,242,76,.35);}
.field.error input{border-color:var(--c-danger);box-shadow:0 0 0 2px rgba(229,72,77,.28);}
.field-msg{font-size:13px;margin-top:8px;color:var(--c-muted-dark);}
.field.error .field-msg{color:#FF8A8E;}
.field-msg.ok{color:var(--c-brand);display:flex;align-items:center;gap:6px;}
.privacy-note{font-size:13px;color:var(--c-muted-dark);margin-top:16px;}

/* ============ footer ============ */
.site-footer{background:var(--c-ink);color:#C9D1CB;padding:72px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .logo-text{color:#fff;}
.footer-brand .logo-mark{border-color:var(--c-brand-ink);}
.footer-brand{display:flex;flex-direction:column;gap:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--c-muted-dark);max-width:280px;}
.footer-col h3{font-size:13px;letter-spacing:.08em;color:var(--c-muted-dark);font-weight:600;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col p{font-size:14px;color:#C9D1CB;transition:color .18s ease-out;}
.footer-col a:hover{color:var(--c-brand);}
.footer-bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid var(--c-line-dark);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--c-muted-dark);
}
.footer-links{display:flex;gap:18px;flex-wrap:wrap;}
.footer-links a{color:var(--c-muted-dark);transition:color .18s ease-out;}
.footer-links a:hover{color:var(--c-brand);}

/* ============ reveal ============ */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease-out,transform .5s ease-out;}
.reveal.in-view{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  html{scroll-behavior:auto;}
}

/* ============ responsive ============ */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .section{padding:72px 0;}
  .nav-links,.search-wrap,.nav-divider{display:none;}
  .nav-toggle{display:inline-flex;}
  .logo-text{font-size:15px;}
  .site-header.menu-open .nav-links{
    display:flex;flex-direction:column;gap:0;margin:0;
    position:fixed;left:0;right:0;top:var(--header-h);bottom:0;
    background:#fff;padding:16px 24px 32px;overflow:auto;z-index:88;
    border-top:1px solid var(--c-line);
  }
  .site-header.menu-open .nav-links a{
    font-size:20px;line-height:56px;border-bottom:1px solid var(--c-line);color:var(--c-ink);
  }
  .site-header.menu-open .nav-links a::after{display:none;}
  .intro-grid{grid-template-columns:1fr;gap:32px;}
  .intro-figure{order:-1;}
  .dyn-row{grid-template-columns:42px minmax(0,1fr) 24px;gap:14px;padding:20px 14px;}
  .dyn-thumb,.dyn-tag{display:none;}
  .facts-grid{grid-template-columns:1fr 1fr;}
  .cross-grid{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:28px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:640px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:28px;}
  .intro-title{font-size:32px;}
  .intro-text{font-size:15px;}
  .dyn-body h3{font-size:17px;}
  .facts-grid{grid-template-columns:1fr;}
  .inline-form{flex-direction:column;align-items:stretch;}
  .inline-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-col ul{display:none;}
  .footer-col h3{margin-bottom:0;cursor:pointer;}
  .footer-col.open ul{display:flex;margin-top:14px;}
}