/* roulang page: index */
:root{
  --ink:#131510;
  --ink-2:#3A3D34;
  --muted:#75796B;
  --paper:#F5F3EC;
  --paper-2:#ECE9E0;
  --card:#FFFFFF;
  --line:#DAD6C8;
  --brand-900:#0F3D2E;
  --brand-700:#17604A;
  --accent:#C9F04C;
  --accent-ink:#1B2205;
  --warm:#F2703A;
  --shadow-1:0 1px 2px rgba(19,21,16,.04), 0 8px 24px -12px rgba(19,21,16,.10);
  --shadow-2:0 18px 40px -20px rgba(19,21,16,.22);
  --r-sm:10px;
  --r-md:16px;
  --r-lg:24px;
  --r-pill:999px;
  --ease:cubic-bezier(.2,.7,.2,1);
  --t-fast:150ms;
  --t-mid:240ms;
  --t-slow:400ms;
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color var(--t-fast) var(--ease);}
a:hover{color:var(--brand-900);}
button{font:inherit;cursor:pointer;border:0;background:none;}
input,textarea,select{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;}
.num-font{font-family:"Inter","SFMono-Regular",Consolas,"Liberation Mono",monospace;font-variant-numeric:tabular-nums;}

/* ---------- 通用排版 ---------- */
h1{font-size:clamp(34px,5vw,64px);line-height:1.12;font-weight:800;letter-spacing:-.02em;}
h2{font-size:clamp(26px,3.2vw,40px);line-height:1.24;font-weight:700;letter-spacing:-.01em;}
h3{font-size:20px;line-height:1.45;font-weight:600;}
.eyebrow{
  display:inline-block;
  font-size:12px;
  font-weight:800;
  letter-spacing:.16em;
  text-transform:uppercase;
  color:var(--brand-700);
  margin-bottom:14px;
}
.section{padding:104px 0;}
.section-alt{background:var(--paper-2);}
.on-dark{background:var(--brand-900);color:#EFF3E7;}
.on-dark h2,.on-dark h3{color:#FFFFFF;}
.on-dark .eyebrow{color:var(--accent);}
.section-head{max-width:760px;margin-bottom:56px;}
.section-head p{color:var(--muted);font-size:16px;margin-top:16px;}
.on-dark .section-head p{color:rgba(239,243,231,.72);}
.hl{background:var(--accent);color:var(--accent-ink);padding:0 .16em;border-radius:6px;-webkit-box-decoration-break:clone;box-decoration-break:clone;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:14px 28px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:700;
  letter-spacing:.02em;
  border:1.5px solid transparent;
  transition:background var(--t-mid) var(--ease),color var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease),transform var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease);
}
.btn-primary{background:var(--brand-900);color:#F7F9F2;border-color:var(--brand-900);}
.btn-primary:hover{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-2);}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--brand-700);}
.btn-ghost:hover{background:rgba(15,61,46,.08);border-color:var(--accent);color:var(--brand-900);transform:translateY(-2px);}
.btn-sm{padding:10px 20px;font-size:14px;}
.btn-text{
  display:inline-block;
  color:var(--brand-700);
  font-weight:700;
  font-size:15px;
  padding:2px 0;
  background:linear-gradient(var(--accent),var(--accent)) left bottom / 40% 2px no-repeat;
  transition:background-size var(--t-mid) var(--ease),color var(--t-mid) var(--ease);
}
.btn-text:hover{background-size:100% 2px;color:var(--brand-900);}
.on-dark .btn-ghost{color:#EFF3E7;border-color:rgba(239,243,231,.5);}
.on-dark .btn-ghost:hover{background:rgba(239,243,231,.12);border-color:var(--accent);color:#FFFFFF;}

/* ---------- 页头 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(245,243,236,.94);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t-mid) var(--ease);
}
.site-header.is-scrolled{box-shadow:0 12px 32px -20px rgba(19,21,16,.45);}
.header-inner{display:flex;align-items:center;gap:18px;height:72px;}
.logo{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:16px;letter-spacing:-.01em;flex:0 0 auto;}
.logo:hover{color:var(--brand-900);}
.logo-mark{width:30px;height:30px;display:block;flex:0 0 auto;}
.logo-mark svg{display:block;width:100%;height:100%;}
.nav{margin-left:auto;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 16px;
  border-radius:var(--r-pill);
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  transition:background var(--t-fast) var(--ease),color var(--t-fast) var(--ease);
}
.nav-link:hover{background:rgba(15,61,46,.07);color:var(--brand-900);}
.nav-link.is-active{color:var(--brand-900);font-weight:600;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:16px;
  right:16px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}
.header-actions{margin-left:12px;display:flex;align-items:center;gap:10px;}
.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--card);
  color:var(--brand-900);
}
.nav-toggle:hover{border-color:var(--brand-700);}
.nav-toggle svg{width:20px;height:20px;}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:90;
  background:var(--paper);
  display:flex;
  flex-direction:column;
  padding:22px 20px 32px;
  overflow-y:auto;
  transform:translateY(-102%);
  transition:transform var(--t-mid) var(--ease);
}
.drawer.is-open{transform:translateY(0);}
.drawer-top{display:flex;align-items:center;justify-content:space-between;padding-bottom:20px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:44px;
  height:44px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--card);
  font-size:22px;
  line-height:1;
  color:var(--brand-900);
  display:flex;
  align-items:center;
  justify-content:center;
}
.drawer-close:hover{border-color:var(--brand-700);background:rgba(201,240,76,.35);}
.drawer-nav{display:flex;flex-direction:column;margin-top:12px;}
.drawer-nav a{
  padding:18px 4px;
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand-900);box-shadow:inset 3px 0 0 var(--accent);padding-left:14px;}
.drawer-cta{margin-top:28px;width:100%;}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--brand-900);color:#F2F4EC;padding:96px 0 88px;}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  opacity:.4;
  transform:scale(1.03);
}
.hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(104deg,rgba(15,61,46,.97) 0%,rgba(15,61,46,.88) 44%,rgba(15,61,46,.5) 100%);
}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:1.06fr .94fr;gap:56px;align-items:center;}
.hero h1{color:#FFFFFF;margin-bottom:20px;}
.hero-sub{font-size:17px;color:rgba(242,244,236,.82);max-width:540px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:12px 30px;margin-top:40px;}
.hero-stats li{display:flex;flex-direction:column;padding-left:14px;border-left:1px solid rgba(201,240,76,.45);}
.hero-stats strong{font-size:24px;font-weight:800;color:#FFFFFF;line-height:1.3;}
.hero-stats span{font-size:13px;letter-spacing:.06em;color:rgba(242,244,236,.72);}
.hero-visual{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid rgba(201,240,76,.28);
  box-shadow:0 34px 64px -32px rgba(0,0,0,.7);
}
.hero-visual img{width:100%;height:384px;object-fit:cover;transition:transform var(--t-slow) var(--ease);}
.hero-visual:hover img{transform:scale(1.03);}

/* ---------- 功能分组 ---------- */
.features-layout{display:grid;grid-template-columns:minmax(240px,340px) 1fr;gap:56px;align-items:start;}
.features-aside{position:sticky;top:104px;}
.features-aside p{color:var(--muted);font-size:16px;margin-top:18px;}
.features-aside .btn-text{margin-top:24px;}
.features-list{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.feature-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:30px 28px;
  box-shadow:var(--shadow-1);
  transition:transform var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease);
}
.feature-item:hover{transform:translateY(-4px);border-color:var(--brand-700);box-shadow:var(--shadow-2);}
.feature-item .num{
  display:inline-block;
  font-size:12px;
  font-weight:800;
  letter-spacing:.14em;
  background:var(--accent);
  color:var(--accent-ink);
  padding:3px 11px;
  border-radius:var(--r-pill);
  margin-bottom:18px;
}
.feature-item p{color:var(--ink-2);font-size:15px;margin-top:12px;line-height:1.8;}

/* ---------- 使用场景 Tabs ---------- */
.tab-list{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:36px;}
.tab{
  padding:12px 24px;
  border-radius:var(--r-pill);
  border:1.5px solid var(--line);
  background:var(--card);
  color:var(--ink-2);
  font-size:15px;
  font-weight:600;
  transition:background var(--t-mid) var(--ease),color var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease),transform var(--t-mid) var(--ease);
}
.tab:hover{border-color:var(--brand-700);color:var(--brand-900);transform:translateY(-2px);}
.tab.is-active{background:var(--brand-900);border-color:var(--brand-900);color:#F5F7F0;}
.tab-panel{display:none;}
.tab-panel.is-active{display:grid;grid-template-columns:1.08fr .92fr;gap:44px;align-items:center;}
.tab-panel h3{font-size:24px;margin-bottom:16px;}
.tab-panel ol{counter-reset:step;margin-top:8px;}
.tab-panel ol li{
  position:relative;
  padding:14px 0 14px 46px;
  border-bottom:1px solid var(--line);
  color:var(--ink-2);
  font-size:16px;
}
.tab-panel ol li:last-child{border-bottom:0;}
.tab-panel ol li::before{
  counter-increment:step;
  content:counter(step,decimal-leading-zero);
  position:absolute;
  left:0;
  top:16px;
  font-size:12px;
  font-weight:800;
  letter-spacing:.08em;
  color:var(--brand-700);
  background:var(--accent);
  border-radius:var(--r-sm);
  padding:2px 8px;
}
.tab-figure{border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow-1);}
.tab-figure img{width:100%;height:320px;object-fit:cover;transition:transform var(--t-slow) var(--ease);}
.tab-figure:hover img{transform:scale(1.03);}

/* ---------- 证据板块 ---------- */
.evidence{padding:104px 0;}
.quote{
  margin:0;
  font-size:clamp(21px,2.3vw,30px);
  line-height:1.6;
  font-weight:600;
  color:#FFFFFF;
  border-left:4px solid var(--accent);
  padding-left:28px;
  max-width:920px;
  letter-spacing:-.01em;
}
.quote footer{margin-top:18px;font-size:14px;font-weight:500;color:rgba(239,243,231,.66);letter-spacing:.06em;}
.stat-bar{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin:56px 0;
  padding:32px 0;
  border-top:1px solid rgba(239,243,231,.18);
  border-bottom:1px solid rgba(239,243,231,.18);
}
.stat-bar strong{
  display:block;
  font-size:clamp(30px,3.6vw,46px);
  font-weight:800;
  line-height:1.15;
  color:var(--accent);
  letter-spacing:-.02em;
}
.stat-bar span{font-size:14px;letter-spacing:.06em;color:rgba(239,243,231,.7);}
.brand-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px 42px;}
.brand-row li{font-size:15px;font-weight:600;letter-spacing:.05em;color:rgba(239,243,231,.58);}

/* ---------- 价格 ---------- */
.price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
.price-card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:34px 30px;
  box-shadow:var(--shadow-1);
  transition:transform var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease);
}
.price-card:hover{transform:translateY(-4px);border-color:var(--brand-700);box-shadow:var(--shadow-2);}
.price-card h3{font-size:20px;margin-bottom:8px;}
.price-card .price-desc{font-size:14px;color:var(--muted);min-height:44px;}
.price-card .price-value{font-size:30px;font-weight:800;letter-spacing:-.02em;margin:18px 0 6px;color:var(--brand-900);}
.price-card .price-value small{font-size:14px;font-weight:600;color:var(--muted);margin-left:6px;letter-spacing:0;}
.price-card ul{margin:22px 0 28px;display:flex;flex-direction:column;gap:12px;}
.price-card ul li{position:relative;padding-left:22px;font-size:15px;color:var(--ink-2);}
.price-card ul li::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--accent);
}
.price-card .btn{margin-top:auto;width:100%;}
.price-card.is-featured{
  background:var(--brand-900);
  border-color:var(--brand-900);
  color:#EFF3E7;
  transform:translateY(-8px);
  box-shadow:var(--shadow-2);
}
.price-card.is-featured:hover{transform:translateY(-12px);}
.price-card.is-featured h3{color:#FFFFFF;}
.price-card.is-featured .price-desc{color:rgba(239,243,231,.7);}
.price-card.is-featured .price-value{color:var(--accent);}
.price-card.is-featured .price-value small{color:rgba(239,243,231,.65);}
.price-card.is-featured ul li{color:rgba(239,243,231,.86);}
.price-card.is-featured .btn-primary{background:var(--accent);color:var(--accent-ink);border-color:var(--accent);}
.price-card.is-featured .btn-primary:hover{background:#FFFFFF;border-color:#FFFFFF;color:var(--brand-900);}
.price-tag{
  position:absolute;
  top:-13px;
  right:26px;
  background:var(--warm);
  color:#FFFFFF;
  font-size:12px;
  font-weight:800;
  letter-spacing:.1em;
  padding:4px 12px;
  border-radius:var(--r-pill);
}

/* ---------- 资讯 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease),box-shadow var(--t-mid) var(--ease);
}
.news-card:hover{transform:translateY(-4px);border-color:var(--brand-700);box-shadow:var(--shadow-2);}
.news-card__cover{display:block;overflow:hidden;border-bottom:1px solid var(--line);}
.news-card__cover img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform var(--t-slow) var(--ease);}
.news-card:hover .news-card__cover img{transform:scale(1.03);}
.news-card__body{padding:22px 22px 16px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-card__body h3{font-size:18px;line-height:1.5;}
.news-card__body h3 a{color:var(--ink);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card__body h3 a:hover{color:var(--brand-700);}
.news-card__body p{
  font-size:14px;
  color:var(--muted);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.badge{
  align-self:flex-start;
  display:inline-block;
  background:var(--accent);
  color:var(--accent-ink);
  font-size:12px;
  font-weight:700;
  letter-spacing:.06em;
  padding:3px 11px;
  border-radius:var(--r-pill);
}
.news-card__meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 22px 20px;
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--muted);
  letter-spacing:.04em;
}
.card-arrow{
  width:32px;
  height:32px;
  border-radius:50%;
  border:1px solid var(--line);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--brand-700);
  font-size:15px;
  transition:background var(--t-mid) var(--ease),color var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease);
}
.card-arrow:hover{background:var(--accent);border-color:var(--accent);color:var(--accent-ink);}
.news-more{display:flex;justify-content:center;margin-top:48px;}
.news-empty{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:14px;
  padding:64px 24px;
  background:var(--card);
  border:1px dashed var(--line);
  border-radius:var(--r-md);
  color:var(--muted);
}
.news-empty svg{width:40px;height:40px;color:var(--brand-700);}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:24px 0;
  font-size:18px;
  font-weight:600;
  color:var(--ink);
  transition:color var(--t-fast) var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-700);}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:22px;
  height:22px;
  border-radius:6px;
  background:var(--accent);
  transition:transform var(--t-mid) var(--ease);
}
.faq-icon::before{
  content:"";
  position:absolute;
  inset:0;
  margin:auto;
  width:10px;
  height:2px;
  border-radius:2px;
  background:var(--accent-ink);
}
.faq-icon::after{
  content:"";
  position:absolute;
  inset:0;
  margin:auto;
  width:2px;
  height:10px;
  border-radius:2px;
  background:var(--accent-ink);
  transition:transform var(--t-mid) var(--ease);
}
.faq-item[open] .faq-icon{transform:rotate(45deg);}
.faq-item[open] .faq-icon::after{transform:scaleY(0);}
.faq-body{padding:0 0 24px;max-width:700px;}
.faq-body p{color:var(--ink-2);font-size:16px;}

/* ---------- CTA 通栏 ---------- */
.cta-band{background:linear-gradient(118deg,#0F3D2E 0%,#17604A 100%);color:#EFF3E7;padding:80px 0;}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.cta-inner h2{color:#FFFFFF;max-width:620px;}
.cta-inner p{color:rgba(239,243,231,.76);margin-top:14px;max-width:620px;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:rgba(240,244,234,.78);padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#FFFFFF;font-weight:800;font-size:16px;margin-bottom:16px;}
.footer-brand svg{width:30px;height:30px;display:block;}
.footer-intro{font-size:14px;line-height:1.8;color:rgba(240,244,234,.7);max-width:320px;}
.site-footer h4{font-size:13px;font-weight:800;letter-spacing:.12em;color:var(--accent);margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{color:rgba(240,244,234,.78);font-size:15px;}
.footer-links a:hover{color:var(--accent);}
.footer-info{display:flex;flex-direction:column;gap:12px;font-size:14px;color:rgba(240,244,234,.72);}
.footer-bottom{
  margin-top:52px;
  padding-top:22px;
  border-top:1px solid rgba(240,244,234,.16);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(240,244,234,.58);
  letter-spacing:.04em;
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity var(--t-slow) var(--ease),transform var(--t-slow) var(--ease);}
.reveal.is-in{opacity:1;transform:none;}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .section{padding:88px 0;}
  .evidence{padding:88px 0;}
  .hero{padding:80px 0 72px;}
  .hero-inner{grid-template-columns:1fr;gap:40px;}
  .hero-visual img{height:300px;}
  .features-layout{grid-template-columns:1fr;gap:34px;}
  .features-aside{position:static;}
  .tab-panel.is-active{grid-template-columns:1fr;gap:32px;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .footer-intro{max-width:none;}
}
@media (max-width:900px){
  .nav{display:none;}
  .nav-toggle{display:inline-flex;}
}
@media (max-width:768px){
  body{font-size:16px;}
  .section{padding:60px 0;}
  .evidence{padding:60px 0;}
  .container{padding:0 20px;}
  .header-inner{height:60px;}
  .logo{font-size:15px;}
  .hero{padding:64px 0 56px;}
  .hero-visual img{height:230px;}
  .hero-stats{gap:14px 22px;}
  .hero-stats strong{font-size:20px;}
  .features-list{grid-template-columns:1fr;}
  .price-grid{grid-template-columns:1fr;}
  .price-card.is-featured{transform:none;}
  .price-card.is-featured:hover{transform:translateY(-4px);}
  .stat-bar{grid-template-columns:1fr 1fr;gap:26px 18px;margin:40px 0;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cta-band{padding:56px 0;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .quote{padding-left:18px;}
  .section-head{margin-bottom:36px;}
}
@media (max-width:520px){
  .header-actions .btn{display:none;}
  h1{font-size:clamp(28px,8vw,36px);}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .tab{padding:10px 18px;font-size:14px;}
  .feature-item{padding:24px 20px;}
  .price-card{padding:28px 22px;}
  .tab-figure img{height:220px;}
  .faq-item summary{font-size:16px;padding:20px 0;}
}

/* roulang page: category1 */
:root{
  --ink:#131510;
  --ink-2:#3A3D34;
  --muted:#75796B;
  --paper:#F5F3EC;
  --paper-2:#ECE9E0;
  --card:#FFFFFF;
  --line:#DAD6C8;
  --brand-900:#0F3D2E;
  --brand-700:#17604A;
  --accent:#C9F04C;
  --accent-ink:#1B2205;
  --warm:#F2703A;
  --radius-card:16px;
  --radius-lg:24px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(19,21,16,.04), 0 8px 24px -12px rgba(19,21,16,.10);
  --shadow-2:0 18px 40px -20px rgba(19,21,16,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
  --container:1240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;line-height:1.2}
p{margin:0}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:3px solid var(--accent);outline-offset:3px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.01em;
  transition:background-color .24s var(--ease),color .24s var(--ease),transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease);
  white-space:nowrap;
}
.btn-primary{background:var(--brand-900);color:#F7F6F0;box-shadow:var(--shadow-1)}
.btn-primary:hover{background:var(--accent);color:var(--accent-ink);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;color:var(--brand-900);border:1.5px solid var(--brand-700)}
.btn-ghost:hover{background:rgba(15,61,46,.08);border-color:var(--accent);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand-700);font-weight:600;font-size:15px;position:relative;padding-bottom:3px}
.btn-text::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:40%;background:var(--accent);transition:width .24s var(--ease)}
.btn-text:hover::after{width:100%}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .24s var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px -22px rgba(19,21,16,.45)}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;font-weight:800;font-size:17px;letter-spacing:-.01em;color:var(--brand-900)}
.logo-mark{width:30px;height:30px;flex:0 0 30px;border-radius:8px;overflow:hidden}
.nav{display:flex;align-items:center}
.nav-list{
  display:flex;align-items:center;gap:4px;
  padding:4px;border:1px solid var(--line);border-radius:999px;background:var(--card);
}
.nav-link{
  position:relative;display:block;padding:8px 18px;border-radius:999px;
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:background-color .15s var(--ease),color .15s var(--ease);
}
.nav-link:hover{background:var(--paper-2);color:var(--brand-900)}
.nav-link.is-active{color:var(--brand-900);font-weight:600;background:var(--paper-2)}
.nav-link.is-active::after{
  content:"";position:absolute;left:18px;right:18px;bottom:5px;height:2px;
  background:var(--accent);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  align-items:center;justify-content:center;border:1px solid var(--line);background:var(--card);
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand-900);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--brand-900);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer{
  display:none;position:fixed;inset:60px 0 0;background:var(--paper);z-index:55;
  padding:24px 20px 40px;overflow-y:auto;border-top:1px solid var(--line);
}
.drawer.is-open{display:block}
.drawer-list{display:flex;flex-direction:column;gap:6px;margin-bottom:24px}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:16px 18px;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--card);
  font-size:17px;font-weight:600;color:var(--brand-900);
}
.drawer-link.is-active{background:var(--accent);color:var(--accent-ink);border-color:var(--accent)}
.drawer .btn{width:100%}

/* ---------- 分类小通栏 Hero ---------- */
.page-hero{
  background:var(--paper-2);
  border-bottom:1px solid var(--line);
  padding:56px 0 52px;
}
.crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted);letter-spacing:.04em;margin-bottom:20px}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--line)}
.crumb a:hover{color:var(--brand-700)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:700;letter-spacing:.12em;text-transform:uppercase;
  color:var(--brand-700);background:var(--card);border:1px solid var(--line);
  padding:6px 14px;border-radius:999px;margin-bottom:20px;
}
.eyebrow i{width:8px;height:8px;border-radius:2px;background:var(--accent);display:block}
.page-hero h1{font-size:clamp(30px,4vw,52px);font-weight:800;line-height:1.14;letter-spacing:-.02em;max-width:900px}
.page-hero .lead{margin-top:18px;font-size:17px;line-height:1.8;color:var(--ink-2);max-width:760px}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:0 32px;margin-top:32px;padding-top:24px;
  border-top:1px solid var(--line);
}
.hero-facts div{padding-right:32px;border-right:1px solid var(--line)}
.hero-facts div:last-child{border-right:0;padding-right:0}
.hero-facts strong{display:block;font-size:20px;font-weight:800;color:var(--brand-900);font-variant-numeric:tabular-nums}
.hero-facts span{font-size:13px;color:var(--muted);letter-spacing:.04em}

/* ---------- 分栏主体 ---------- */
.split{display:grid;grid-template-columns:300px minmax(0,1fr);gap:56px;padding:88px 0 96px}
.toc{position:sticky;top:100px;align-self:start}
.toc-title{font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--muted);margin-bottom:16px}
.toc-list{display:flex;flex-direction:column;gap:2px;border-left:2px solid var(--line)}
.toc-link{
  display:flex;gap:12px;align-items:baseline;
  padding:11px 0 11px 16px;margin-left:-2px;border-left:2px solid transparent;
  font-size:14.5px;color:var(--ink-2);transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
}
.toc-link b{font-size:12px;letter-spacing:.06em;color:var(--muted);font-weight:700;font-variant-numeric:tabular-nums}
.toc-link:hover{color:var(--brand-900);border-left-color:var(--accent);background:rgba(201,240,76,.14)}
.toc-note{margin-top:24px;padding:18px;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--card)}
.toc-note p{font-size:13.5px;line-height:1.75;color:var(--muted)}
.toc-note strong{display:block;font-size:14px;color:var(--brand-900);margin-bottom:6px}

.content-block{padding-bottom:64px;margin-bottom:64px;border-bottom:1px solid var(--line)}
.content-block:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.block-head{display:flex;align-items:center;gap:14px;margin-bottom:22px}
.block-num{
  flex:0 0 auto;font-size:12px;font-weight:700;letter-spacing:.08em;
  color:var(--accent-ink);background:var(--accent);padding:4px 10px;border-radius:999px;
}
.content-block h2{font-size:clamp(24px,2.8vw,34px);font-weight:700}
.prose p{font-size:16.5px;line-height:1.85;color:var(--ink-2);margin-bottom:20px}
.prose p:last-child{margin-bottom:0}
.prose h3{font-size:20px;font-weight:600;color:var(--ink);margin:32px 0 14px}
.hl{background:var(--accent);color:var(--accent-ink);padding:1px 6px;border-radius:6px;font-weight:600}
.dot-list{display:flex;flex-direction:column;gap:14px;margin:24px 0}
.dot-list li{position:relative;padding-left:22px;font-size:16px;line-height:1.8;color:var(--ink-2)}
.dot-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:9px;height:9px;border-radius:2px;background:var(--accent);
}
.dot-list li strong{color:var(--brand-900);font-weight:600}

.figure{margin:32px 0}
.figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-lg)}
.figure figcaption{margin-top:12px;font-size:13px;color:var(--muted);text-align:center}

.table-wrap{margin:28px 0;overflow-x:auto;border:1px solid var(--line);border-radius:var(--radius-card);background:var(--card)}
.table-wrap table{min-width:660px}
.table-wrap caption{
  text-align:left;padding:16px 18px 0;font-size:13px;letter-spacing:.06em;color:var(--muted);
}
.table-wrap th{
  text-align:left;font-size:12.5px;letter-spacing:.08em;color:var(--muted);font-weight:700;
  padding:16px 18px;background:var(--paper-2);white-space:nowrap;
}
.table-wrap td{padding:16px 18px;border-top:1px solid var(--line);font-size:15px;color:var(--ink-2);vertical-align:top}
.table-wrap td:first-child{color:var(--brand-900);font-weight:600;white-space:nowrap}
.table-wrap code{font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:13.5px;background:var(--paper-2);padding:2px 7px;border-radius:6px;color:var(--brand-900)}

.note-card{
  display:flex;gap:16px;margin:28px 0;padding:22px 24px;
  background:var(--card);border:1px solid var(--line);border-left:3px solid var(--brand-700);
  border-radius:4px var(--radius-card) var(--radius-card) 4px;
}
.note-card p{font-size:15px;line-height:1.8;color:var(--ink-2)}
.note-card strong{color:var(--brand-900)}

/* ---------- FAQ ---------- */
.faq{max-width:820px;margin-top:8px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;font-size:17px;font-weight:600;color:var(--ink);cursor:pointer;list-style:none;
  transition:color .2s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand-700)}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:13px;height:13px;border-radius:3px;background:var(--accent);
  transition:transform .24s var(--ease);
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-a{padding:0 0 24px;max-width:720px}
.faq-a p{font-size:15.5px;line-height:1.85;color:var(--ink-2)}

/* ---------- CTA 条 ---------- */
.cta-band{background:var(--brand-900);color:#F2F1E9;padding:80px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:48px;flex-wrap:wrap}
.cta-copy{max-width:640px}
.cta-band h2{font-size:clamp(24px,3vw,36px);font-weight:700;color:#FFFFFF}
.cta-band p{margin-top:16px;font-size:16px;line-height:1.8;color:rgba(242,241,233,.78)}
.cta-band .btn-primary{background:var(--accent);color:var(--accent-ink)}
.cta-band .btn-primary:hover{background:#FFFFFF;color:var(--brand-900)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#E9E8DE;padding:72px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .logo{color:#FFFFFF;margin-bottom:16px}
.footer-brand .logo-text{color:#FFFFFF}
.footer-brand p{font-size:14.5px;line-height:1.8;color:rgba(233,232,222,.72);max-width:320px}
.footer-col h3{font-size:13px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent);font-weight:700;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{font-size:14.5px;color:rgba(233,232,222,.82);transition:color .2s var(--ease)}
.footer-links a:hover{color:var(--accent)}
.footer-meta{font-size:14.5px;line-height:1.9;color:rgba(233,232,222,.72)}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid rgba(233,232,222,.18);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(233,232,222,.6);
}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(16px);transition:opacity .4s var(--ease),transform .4s var(--ease)}
.reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  *{animation-duration:.001ms !important;transition-duration:.001ms !important}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .split{grid-template-columns:1fr;gap:40px;padding:64px 0 72px}
  .toc{position:static}
  .toc-list{border-left:0;border-top:1px solid var(--line);padding-top:8px}
  .toc-link{border-left:0;border-top:2px solid transparent;margin-left:0;padding:12px 8px}
  .toc-link:hover{border-left:0;border-top-color:var(--accent)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .hero-facts div{padding-right:24px}
}
@media (max-width:768px){
  .nav,.header-actions{display:none}
  .nav-toggle{display:flex}
  .header-inner{height:60px}
  .drawer{inset:60px 0 0}
  .page-hero{padding:40px 0 36px}
  .hero-facts{gap:20px 0;flex-direction:column;align-items:flex-start}
  .hero-facts div{padding-right:0;border-right:0;border-left:2px solid var(--accent);padding-left:14px}
  .split{padding:56px 0 64px}
  .content-block{padding-bottom:48px;margin-bottom:48px}
  .content-block h2{font-size:24px}
  .block-head{flex-wrap:wrap;gap:10px}
  .cta-band{padding:56px 0}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:28px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:480px){
  .container{padding:0 20px}
  body{font-size:15.5px}
  .page-hero h1{font-size:28px}
  .prose p{font-size:16px}
  .btn{height:46px;padding:0 22px;font-size:14.5px}
  .figure img{aspect-ratio:4/3;border-radius:16px}
  .faq-item summary{font-size:16px;padding:18px 0}
}

/* roulang page: article */
:root{
  --ink:#131510;
  --ink-2:#3A3D34;
  --muted:#75796B;
  --paper:#F5F3EC;
  --paper-2:#ECE9E0;
  --card:#FFFFFF;
  --line:#DAD6C8;
  --brand-900:#0F3D2E;
  --brand-700:#17604A;
  --accent:#C9F04C;
  --accent-ink:#1B2205;
  --warm:#F2703A;
  --r-s:10px;
  --r-c:16px;
  --r-l:24px;
  --r-pill:999px;
  --shadow-1:0 1px 2px rgba(19,21,16,.04), 0 8px 24px -12px rgba(19,21,16,.10);
  --shadow-2:0 18px 40px -20px rgba(19,21,16,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
  --t1:150ms;
  --t2:240ms;
  --t3:400ms;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img,svg{max-width:100%;display:block}
img{height:auto}
a{color:var(--brand-700);text-decoration:none;transition:color var(--t1) var(--ease)}
a:hover{color:var(--brand-900)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;letter-spacing:-.02em;line-height:1.2}
p{margin:0}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:4px}
.container{width:min(100% - 48px,1240px);margin-inline:auto}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#F5F3EC;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t2) var(--ease);
}
.site-header.is-scrolled{box-shadow:0 10px 30px -20px rgba(19,21,16,.45)}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:800;font-size:17px;letter-spacing:-.01em;flex-shrink:0}
.logo:hover{color:var(--ink)}
.logo-mark{
  width:34px;height:34px;flex:0 0 34px;display:grid;place-items:center;
  border-radius:11px;background:var(--brand-900);
}
.logo-text{white-space:nowrap}
.nav{margin-inline:auto}
.nav-list{
  display:flex;align-items:center;gap:4px;
  background:var(--paper-2);
  border:1px solid var(--line);
  padding:5px;border-radius:var(--r-pill);
}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 18px;border-radius:var(--r-pill);
  font-size:15px;font-weight:500;color:var(--ink-2);
  transition:background var(--t2) var(--ease),color var(--t2) var(--ease);
}
.nav-link:hover{color:var(--ink);background:#fff}
.nav-link.is-active{color:var(--ink);font-weight:600;background:#fff}
.nav-link.is-active::after{
  content:"";position:absolute;left:18px;right:18px;bottom:3px;height:2px;
  border-radius:2px;background:var(--accent);
}
.header-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.menu-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-s);
  border:1px solid var(--line);background:#fff;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  transition:border-color var(--t2) var(--ease),background var(--t2) var(--ease);
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform var(--t2) var(--ease),opacity var(--t2) var(--ease)}
.menu-toggle:hover{border-color:var(--brand-700)}
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--paper);
  display:flex;flex-direction:column;padding:20px;
  transform:translateX(100%);visibility:hidden;
  transition:transform var(--t3) var(--ease),visibility var(--t3) var(--ease);
}
.drawer.is-open{transform:translateX(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-bottom:20px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-s);border:1px solid var(--line);background:#fff;
  display:grid;place-items:center;font-size:20px;line-height:1;color:var(--ink);
}
.drawer-close:hover{border-color:var(--brand-700)}
.drawer-list{margin-top:24px;display:flex;flex-direction:column;gap:6px}
.drawer-link{
  display:block;padding:16px 4px;font-size:19px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-link:hover{color:var(--brand-700)}
.drawer-cta{margin-top:auto;padding-top:24px}
body.drawer-open{overflow:hidden}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-pill);border:1.5px solid transparent;
  font-weight:600;font-size:15px;padding:14px 28px;letter-spacing:.01em;
  transition:background var(--t2) var(--ease),color var(--t2) var(--ease),
             border-color var(--t2) var(--ease),transform var(--t2) var(--ease),
             box-shadow var(--t2) var(--ease);
}
.btn-primary{background:var(--brand-900);color:#F5F3EC}
.btn-primary:hover{background:var(--accent);color:var(--accent-ink);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;color:var(--brand-900);border-color:var(--brand-700);padding:12px 26px}
.btn-ghost:hover{background:rgba(15,61,46,.08);border-color:var(--accent);color:var(--brand-900);transform:translateY(-2px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;padding:0 0 2px;
  color:var(--brand-700);font-weight:600;font-size:15px;position:relative;
}
.btn-text::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;border-radius:2px;
  background:var(--accent);transform:scaleX(.4);transform-origin:left;
  transition:transform var(--t2) var(--ease);
}
.btn-text:hover::after{transform:scaleX(1)}

/* ---------- article hero ---------- */
.article-hero{background:var(--paper-2);border-bottom:1px solid var(--line);padding:32px 0 44px}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.breadcrumb li{display:flex;align-items:center;gap:8px;min-width:0}
.breadcrumb li+li::before{content:"/";color:#BEB9A8}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--brand-700)}
.breadcrumb .current{
  color:var(--ink-2);max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.article-hero h1{
  margin-top:22px;font-size:clamp(30px,4vw,46px);font-weight:800;line-height:1.16;
  letter-spacing:-.02em;max-width:22ch;
}
.meta-row{
  margin-top:22px;display:flex;flex-wrap:wrap;align-items:center;gap:14px;
  font-size:13.5px;color:var(--muted);letter-spacing:.02em;
}
.badge{
  display:inline-flex;align-items:center;padding:5px 14px;border-radius:var(--r-pill);
  background:var(--accent);color:var(--accent-ink);font-size:12px;font-weight:700;letter-spacing:.06em;
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#C4BFAC}

/* ---------- layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);
  gap:56px;align-items:start;padding:56px 0 0;
}
.article-main{min-width:0}

/* ---------- article body ---------- */
.article-body{font-size:17px;line-height:1.85;color:var(--ink-2)}
.article-body > *:first-child{margin-top:0}
.article-body p{margin:0 0 20px}
.article-body h2{
  position:relative;margin:48px 0 16px;padding-left:18px;
  font-size:clamp(22px,2.4vw,28px);font-weight:700;color:var(--ink);line-height:1.3;
  scroll-margin-top:96px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.14em;bottom:.14em;width:4px;
  border-radius:2px;background:var(--accent);
}
.article-body h3{
  margin:32px 0 12px;font-size:20px;font-weight:600;color:var(--ink);
  scroll-margin-top:96px;
}
.article-body ul,.article-body ol{margin:0 0 20px;list-style:none;padding:0}
.article-body li{position:relative;padding-left:24px;margin-bottom:10px}
.article-body li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;
  border-radius:2px;background:var(--accent);
}
.article-body blockquote{
  margin:28px 0;padding:20px 24px;background:var(--paper-2);
  border-left:3px solid var(--brand-900);
  border-radius:0 var(--r-c) var(--r-c) 0;color:var(--ink);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:16px;margin:28px 0;width:100%}
.article-body figure{margin:28px 0}
.article-body figure img{margin:0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body a{color:var(--brand-700);border-bottom:2px solid var(--accent);font-weight:600}
.article-body a:hover{color:var(--brand-900);background:rgba(201,240,76,.35)}
.article-body strong{color:var(--ink)}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;
  margin:28px 0;font-size:15px;background:var(--card);border-radius:var(--r-c);
}
.article-body th,.article-body td{
  border:1px solid var(--line);padding:12px 16px;text-align:left;white-space:nowrap;
}
.article-body th{background:var(--paper-2);font-weight:700;color:var(--ink)}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  font-size:.9em;background:var(--paper-2);padding:2px 6px;border-radius:6px;
}

/* ---------- tags / post nav ---------- */
.tag-group{
  margin-top:44px;padding-top:28px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
}
.tag-label{font-size:13px;color:var(--muted);letter-spacing:.06em;margin-right:4px}
.tag{
  display:inline-flex;align-items:center;padding:7px 16px;border-radius:var(--r-pill);
  background:var(--paper-2);border:1px solid var(--line);font-size:13px;color:var(--ink-2);
  transition:background var(--t2) var(--ease),color var(--t2) var(--ease),border-color var(--t2) var(--ease);
}
.tag:hover{background:var(--accent);border-color:var(--accent);color:var(--accent-ink)}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:40px}
.post-nav-item{
  display:block;background:var(--card);border:1px solid var(--line);border-radius:var(--r-c);
  padding:20px 22px;transition:transform var(--t2) var(--ease),border-color var(--t2) var(--ease),box-shadow var(--t2) var(--ease);
}
.post-nav-item:hover{transform:translateY(-4px);border-color:var(--brand-700);box-shadow:var(--shadow-2)}
.post-nav-item.is-next{text-align:right}
.post-nav-label{display:block;font-size:12px;letter-spacing:.14em;color:var(--muted)}
.post-nav-title{display:block;margin-top:8px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.5}

/* ---------- empty state ---------- */
.empty-state{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-l);
  padding:56px 32px;text-align:center;box-shadow:var(--shadow-1);
}
.empty-state .empty-icon{
  width:56px;height:56px;margin:0 auto 20px;border-radius:18px;
  background:var(--paper-2);display:grid;place-items:center;
}
.empty-state h2{font-size:24px;font-weight:700;color:var(--ink)}
.empty-state p{margin:12px auto 26px;max-width:46ch;color:var(--muted);font-size:15px}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:96px;min-width:0}
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-c);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-card + .side-card{margin-top:20px}
.side-title{
  display:flex;align-items:center;gap:9px;font-size:15px;font-weight:700;color:var(--ink);
  letter-spacing:.02em;
}
.side-title::before{content:"";width:8px;height:8px;border-radius:2px;background:var(--accent)}
.toc-list{margin-top:14px;max-height:320px;overflow-y:auto}
.toc-list a{
  display:block;padding:9px 0 9px 12px;border-left:2px solid var(--line);
  font-size:14px;color:var(--muted);line-height:1.55;
  transition:color var(--t2) var(--ease),border-color var(--t2) var(--ease);
}
.toc-list a:hover,.toc-list a.is-current{color:var(--brand-900);border-color:var(--accent)}
.toc-list .toc-h3 a{padding-left:26px;font-size:13.5px}
.side-posts{margin-top:14px;display:flex;flex-direction:column;gap:14px}
.side-post{display:flex;gap:12px;align-items:flex-start;color:inherit}
.side-post:hover{color:inherit}
.side-post-media{
  flex:0 0 72px;width:72px;aspect-ratio:16/10;border-radius:10px;overflow:hidden;
  background:var(--paper-2);
}
.side-post-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t3) var(--ease)}
.side-post:hover .side-post-media img{transform:scale(1.06)}
.side-post-body{min-width:0}
.side-post-title{
  display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.5;
  transition:color var(--t2) var(--ease);
}
.side-post:hover .side-post-title{color:var(--brand-700)}
.side-post-time{display:block;margin-top:4px;font-size:12.5px;color:var(--muted);letter-spacing:.04em}

/* ---------- related ---------- */
.related-section{margin-top:88px}
.section-head{max-width:62ch}
.section-kicker{
  display:inline-block;font-size:12px;letter-spacing:.16em;font-weight:700;
  color:var(--brand-700);margin-bottom:12px;
}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:800;color:var(--ink);letter-spacing:-.02em}
.section-head p{margin-top:12px;color:var(--muted);font-size:15.5px}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px}
.card{
  display:flex;flex-direction:column;background:var(--card);
  border:1px solid var(--line);border-radius:var(--r-c);overflow:hidden;
  transition:transform var(--t2) var(--ease),border-color var(--t2) var(--ease),box-shadow var(--t2) var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--brand-700);box-shadow:var(--shadow-2)}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--paper-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform var(--t3) var(--ease)}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-title{font-size:18px;font-weight:600;color:var(--ink);line-height:1.45}
.card-desc{font-size:14px;color:var(--muted);line-height:1.7}
.card-foot{
  margin-top:auto;padding-top:8px;display:flex;align-items:center;
  justify-content:space-between;gap:12px;
}
.card-time{font-size:13px;color:var(--muted);letter-spacing:.04em}
.back-entry{display:flex;justify-content:center;margin-top:56px}

/* ---------- cta band ---------- */
.cta-wrap{margin-top:96px}
.cta-band{
  background:var(--brand-900);color:#F5F3EC;border-radius:var(--r-l);
  padding:52px 48px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:800;color:#fff;max-width:22ch}
.cta-band p{margin-top:12px;color:rgba(245,243,236,.74);font-size:15.5px;max-width:52ch}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-primary{background:var(--accent);color:var(--accent-ink)}
.cta-band .btn-primary:hover{background:#F5F3EC;color:var(--brand-900)}
.cta-band .btn-ghost{color:#F5F3EC;border-color:rgba(245,243,236,.5)}
.cta-band .btn-ghost:hover{background:rgba(245,243,236,.12);border-color:var(--accent);color:#fff}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-900);color:rgba(245,243,236,.78);margin-top:96px;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px}
.footer-logo{color:#fff;font-size:17px}
.footer-logo:hover{color:#fff}
.footer-logo .logo-mark{background:rgba(245,243,236,.12);border:1px solid rgba(245,243,236,.22)}
.footer-desc{margin-top:18px;font-size:14.5px;line-height:1.8;color:rgba(245,243,236,.72);max-width:38ch}
.footer-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.footer-tags li{
  font-size:12px;letter-spacing:.06em;padding:5px 12px;border-radius:var(--r-pill);
  border:1px solid rgba(245,243,236,.25);color:rgba(245,243,236,.76);
}
.footer-title{font-size:14px;font-weight:700;color:#fff;letter-spacing:.06em;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:rgba(245,243,236,.74);font-size:14.5px}
.footer-links a:hover{color:var(--accent)}
.footer-contact li{font-size:14.5px;color:rgba(245,243,236,.72)}
.footer-bottom{
  margin-top:56px;padding:24px 0 32px;border-top:1px solid rgba(245,243,236,.16);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(245,243,236,.6);
}

/* ---------- motion ---------- */
.js .reveal{opacity:0;transform:translateY(16px);transition:opacity var(--t3) var(--ease),transform var(--t3) var(--ease)}
.js .reveal.is-in{opacity:1;transform:none}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition-duration:.01ms !important;animation-duration:.01ms !important}
  html{scroll-behavior:auto}
  .js .reveal{opacity:1;transform:none}
}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .container{width:min(100% - 48px,1120px)}
}
@media (max-width:1024px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:40px;padding-top:48px}
  .article-side{position:static}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .article-body h2{margin-top:40px}
}
@media (max-width:768px){
  .container{width:min(100% - 40px,1240px)}
  .header-inner{height:60px;gap:16px}
  .nav{display:none}
  .menu-toggle{display:inline-flex}
  .header-cta{display:none}
  .article-hero{padding:24px 0 36px}
  .article-hero h1{max-width:none;font-size:clamp(26px,7vw,34px)}
  .breadcrumb .current{max-width:24ch}
  .rel-grid{grid-template-columns:1fr}
  .post-nav{grid-template-columns:1fr}
  .post-nav-item.is-next{text-align:left}
  .cta-band{padding:36px 24px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .related-section{margin-top:64px}
  .cta-wrap{margin-top:64px}
  .site-footer{margin-top:64px;padding-top:56px}
  .article-body{font-size:16px}
  .article-body h2{margin-top:36px;padding-left:14px}
}
@media (max-width:520px){
  .logo-text{font-size:15px}
  .article-body{padding:0}
  .card-body{padding:18px}
  .empty-state{padding:40px 20px}
  .btn{padding:13px 22px;font-size:14.5px}
}

/* roulang page: category2 */
:root{
  --ink:#131510;
  --ink-2:#3A3D34;
  --muted:#75796B;
  --paper:#F5F3EC;
  --paper-2:#ECE9E0;
  --card:#FFFFFF;
  --line:#DAD6C8;
  --brand-900:#0F3D2E;
  --brand-700:#17604A;
  --accent:#C9F04C;
  --accent-ink:#1B2205;
  --warm:#F2703A;
  --radius-sm:10px;
  --radius:16px;
  --radius-lg:24px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(19,21,16,.04),0 8px 24px -12px rgba(19,21,16,.10);
  --shadow-2:0 18px 40px -20px rgba(19,21,16,.22);
  --ease:cubic-bezier(.2,.7,.2,1);
  --t-fast:150ms;
  --t-mid:240ms;
  --t-slow:400ms;
  --header-h:72px;
  --mono:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-700);text-decoration:none;transition:color var(--t-fast) var(--ease)}
a:hover{color:var(--brand-900)}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.22;letter-spacing:-.01em}
h1{font-size:clamp(34px,5vw,64px);font-weight:800;letter-spacing:-.02em;line-height:1.12}
h2{font-size:clamp(26px,3.2vw,40px);font-weight:700}
h3{font-size:21px;font-weight:600}
p{margin:0}
:focus-visible{outline:3px solid var(--accent);outline-offset:2px;border-radius:6px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}

/* 容器与分区 */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}
.section{padding:104px 0}
.section--alt{background:var(--paper-2)}
.section--tight{padding:72px 0}
.section--dark{background:var(--brand-900);color:var(--paper)}
.section-head{max-width:740px;margin-bottom:52px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--mono);font-size:12px;font-weight:700;
  letter-spacing:.14em;text-transform:uppercase;color:var(--brand-700);
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:24px;height:2px;background:var(--accent);border-radius:2px}
.section--dark .eyebrow{color:var(--accent)}
.section-lead{margin-top:18px;font-size:17px;color:var(--ink-2)}
.section--dark .section-lead{color:rgba(245,243,236,.78)}

/* 头部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(245,243,236,.94);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t-mid) var(--ease);
}
.site-header.is-scrolled{box-shadow:0 8px 24px -18px rgba(19,21,16,.45)}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:var(--header-h);
}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink)}
.logo:hover{color:var(--ink)}
.logo-mark{
  display:grid;grid-template-columns:repeat(2,1fr);gap:3px;
  width:30px;height:30px;flex:none;
}
.logo-mark i{display:block;border-radius:3px;background:var(--brand-900)}
.logo-mark i:nth-child(1){background:var(--brand-900)}
.logo-mark i:nth-child(2){background:var(--accent)}
.logo-mark i:nth-child(3){background:var(--accent)}
.logo-mark i:nth-child(4){background:var(--brand-900)}
.logo-text{display:flex;align-items:baseline;gap:6px;font-size:18px;font-weight:800;letter-spacing:-.02em}
.logo-sub{font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--muted);font-family:var(--mono)}
.nav-list{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;display:inline-block;
  padding:10px 16px;border-radius:var(--radius-pill);
  font-size:15.5px;font-weight:500;color:var(--ink-2);
  transition:color var(--t-fast) var(--ease),background var(--t-fast) var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:4px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform var(--t-mid) var(--ease);
}
.nav-link:hover{color:var(--brand-900);background:rgba(15,61,46,.06)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.is-active{color:var(--brand-900);font-weight:600}
.nav-link.is-active::after{transform:scaleX(1)}
.menu-toggle{
  display:none;position:relative;
  width:44px;height:44px;flex:none;
  border:1px solid var(--line);border-radius:12px;
  background:var(--card);cursor:pointer;
  transition:border-color var(--t-fast) var(--ease),background var(--t-fast) var(--ease);
}
.menu-toggle:hover{border-color:var(--brand-700)}
.menu-bars,.menu-bars::before,.menu-bars::after{
  position:absolute;left:50%;top:50%;
  width:18px;height:2px;background:var(--ink);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform var(--t-mid) var(--ease),opacity var(--t-fast) var(--ease);
}
.menu-bars::before{content:"";top:-6px;left:0;transform:none}
.menu-bars::after{content:"";top:6px;left:0;transform:none}
.menu-toggle[aria-expanded="true"] .menu-bars{transform:translate(-50%,-50%) rotate(45deg)}
.menu-toggle[aria-expanded="true"] .menu-bars::before{top:0;opacity:0}
.menu-toggle[aria-expanded="true"] .menu-bars::after{top:0;transform:rotate(-90deg)}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--paper);
  padding:24px 24px 40px;
  display:flex;flex-direction:column;gap:8px;
  transform:translateY(-8px);opacity:0;pointer-events:none;
  transition:opacity var(--t-mid) var(--ease),transform var(--t-mid) var(--ease);
}
.drawer.is-open{opacity:1;transform:none;pointer-events:auto}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:44px;margin-bottom:16px}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:12px;
  background:var(--card);cursor:pointer;position:relative;
}
.drawer-close::before,.drawer-close::after{
  content:"";position:absolute;left:50%;top:50%;width:16px;height:2px;
  background:var(--ink);border-radius:2px;
}
.drawer-close::before{transform:translate(-50%,-50%) rotate(45deg)}
.drawer-close::after{transform:translate(-50%,-50%) rotate(-45deg)}
.drawer-link{
  display:block;padding:16px 4px;font-size:20px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-link.is-active{color:var(--brand-700)}
.drawer-link.is-active::before{content:"";display:inline-block;width:10px;height:10px;background:var(--accent);border-radius:3px;margin-right:10px;vertical-align:middle}

/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px}
.breadcrumb li{display:flex;align-items:center;gap:8px;color:rgba(245,243,236,.72)}
.breadcrumb li+li::before{content:"/";color:rgba(245,243,236,.45)}
.breadcrumb a{color:rgba(245,243,236,.86)}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb [aria-current="page"]{color:var(--accent);font-weight:600}

/* 横幅首屏 */
.hero-banner{
  position:relative;
  padding:44px 0 72px;
  color:var(--paper);
  background-image:
    linear-gradient(102deg,rgba(15,61,46,.95) 0%,rgba(15,61,46,.80) 44%,rgba(15,61,46,.32) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-radius:0 0 32px 32px;
  overflow:hidden;
}
.hero-banner::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:360px;height:360px;
  background:radial-gradient(circle,rgba(201,240,76,.22),transparent 68%);
  pointer-events:none;
}
.hero-banner .container{position:relative;z-index:2}
.hero-title{max-width:900px;margin-top:34px}
.hero-sub{
  max-width:680px;margin-top:20px;
  font-size:clamp(16px,1.6vw,18.5px);color:rgba(245,243,236,.86);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-points{
  display:flex;flex-wrap:wrap;align-items:center;gap:0 26px;
  margin-top:38px;font-size:14.5px;color:rgba(245,243,236,.82);
}
.hero-points li{display:flex;align-items:center;gap:10px;padding:6px 0}
.hero-points li+li::before{
  content:"";width:1px;height:16px;background:rgba(245,243,236,.34);margin-right:16px;
}
.hero-points strong{color:var(--accent);font-family:var(--mono);font-size:15px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  padding:14px 28px;border-radius:var(--radius-pill);
  font-size:15.5px;font-weight:600;line-height:1;
  border:1.5px solid transparent;cursor:pointer;text-align:center;
  transition:background var(--t-mid) var(--ease),color var(--t-mid) var(--ease),
             transform var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease),
             box-shadow var(--t-mid) var(--ease);
}
.btn-primary{background:var(--brand-900);color:var(--paper)}
.btn-primary:hover{background:var(--accent);color:var(--accent-ink);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-accent{background:var(--accent);color:var(--accent-ink)}
.btn-accent:hover{background:var(--paper);color:var(--brand-900);transform:translateY(-2px);box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;border-color:var(--brand-700);color:var(--brand-700)}
.btn-ghost:hover{background:rgba(15,61,46,.08);border-color:var(--accent);color:var(--brand-900)}
.btn-ghost-light{background:transparent;border-color:rgba(245,243,236,.55);color:var(--paper)}
.btn-ghost-light:hover{background:rgba(245,243,236,.12);border-color:var(--accent);color:var(--accent)}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;padding:4px 0;
  font-weight:600;color:var(--brand-700);position:relative;
}
.btn-link::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);transform:scaleX(.4);transform-origin:left;
  transition:transform var(--t-mid) var(--ease);
}
.btn-link:hover::after{transform:scaleX(1)}

/* 编号整行条目 */
.row-list{border-top:1px solid var(--line);margin-top:8px}
.row-item{
  display:grid;grid-template-columns:104px minmax(0,1fr) auto;
  align-items:center;gap:32px;
  padding:30px 20px 30px 4px;
  border-bottom:1px solid var(--line);
  border-radius:var(--radius);
  transition:background var(--t-mid) var(--ease),padding var(--t-mid) var(--ease),color var(--t-mid) var(--ease);
}
.row-num{
  font-family:var(--mono);font-size:36px;font-weight:700;letter-spacing:-.03em;
  color:var(--line);line-height:1;
  transition:color var(--t-mid) var(--ease);
}
.row-title{font-size:20px;font-weight:600;transition:color var(--t-mid) var(--ease)}
.row-text{margin-top:8px;font-size:15px;color:var(--ink-2);max-width:760px;transition:color var(--t-mid) var(--ease)}
.row-link{
  display:inline-flex;align-items:center;gap:8px;flex:none;
  padding:9px 18px;border-radius:var(--radius-pill);
  font-size:14px;font-weight:600;color:var(--brand-700);
  border:1px solid var(--line);background:var(--card);
  transition:background var(--t-mid) var(--ease),color var(--t-mid) var(--ease),border-color var(--t-mid) var(--ease);
}
.row-item:hover,.row-item:focus-within{
  background:var(--brand-900);color:var(--paper);padding-left:24px;padding-right:24px;
}
.row-item:hover .row-num,.row-item:focus-within .row-num{color:var(--accent)}
.row-item:hover .row-title,.row-item:focus-within .row-title{color:var(--paper)}
.row-item:hover .row-text,.row-item:focus-within .row-text{color:rgba(245,243,236,.78)}
.row-item:hover .row-link,.row-item:focus-within .row-link{
  background:var(--accent);color:var(--accent-ink);border-color:var(--accent);
}

/* 交替图文 */
.split{
  display:grid;grid-template-columns:1.05fr 1fr;
  gap:56px;align-items:center;
}
.split+.split{margin-top:88px}
.split-media{
  border-radius:var(--radius-lg);overflow:hidden;
  border:1px solid var(--line);background:var(--card);
  box-shadow:var(--shadow-1);
}
.split-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  transition:transform var(--t-slow) var(--ease);
}
.split-media:hover img{transform:scale(1.03)}
.split-body h3{font-size:clamp(21px,2.2vw,26px);font-weight:700}
.split-body p{margin-top:16px;color:var(--ink-2)}
.split.reverse .split-media{order:2}
.point-list{margin-top:22px;display:grid;gap:12px}
.point-list li{display:flex;gap:12px;align-items:flex-start;font-size:15.5px;color:var(--ink-2)}
.point-list li::before{
  content:"";flex:none;width:9px;height:9px;margin-top:11px;
  background:var(--accent);border-radius:2px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 14px;border-radius:var(--radius-pill);
  background:var(--accent);color:var(--accent-ink);
  font-size:13px;font-weight:600;letter-spacing:.02em;
}
.tag--outline{background:transparent;border:1px solid var(--line);color:var(--ink-2)}

/* 数据条 */
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  gap:0;margin-top:8px;
}
.stat{
  padding:12px 28px;
  border-left:1px solid rgba(245,243,236,.22);
}
.stat:first-child{border-left:0;padding-left:0}
.stat-num{
  display:block;font-family:var(--mono);
  font-size:clamp(32px,3.6vw,46px);font-weight:700;color:var(--accent);line-height:1.1;
  letter-spacing:-.02em;
}
.stat-label{display:block;margin-top:10px;font-size:14.5px;color:rgba(245,243,236,.78)}

/* FAQ */
.faq-wrap{max-width:820px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:24px 4px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);
  transition:color var(--t-fast) var(--ease);
}
.faq-q:hover{color:var(--brand-700)}
.faq-icon{
  position:relative;flex:none;width:24px;height:24px;
  background:var(--accent);border-radius:7px;
  transition:transform var(--t-mid) var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--accent-ink);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-panel{max-height:0;overflow:hidden;transition:max-height var(--t-slow) var(--ease)}
.faq-panel p{
  max-width:720px;padding:0 4px 26px;color:var(--ink-2);font-size:15.5px;
}

/* CTA */
.cta-band{
  background:var(--brand-900);color:var(--paper);
  border-radius:var(--radius-lg);
  padding:56px 48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:32px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;left:-60px;top:-80px;width:280px;height:280px;
  background:radial-gradient(circle,rgba(201,240,76,.20),transparent 70%);
}
.cta-band>*{position:relative;z-index:2}
.cta-band h2{max-width:620px}
.cta-band p{margin-top:14px;color:rgba(245,243,236,.78);max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* 页脚 */
.site-footer{background:var(--brand-900);color:rgba(245,243,236,.82);padding:72px 0 32px;margin-top:104px}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:44px;
}
.footer-title{font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--paper);margin-bottom:18px;text-transform:uppercase}
.footer-about{margin-top:18px;font-size:14.5px;line-height:1.8;color:rgba(245,243,236,.7);max-width:340px}
.footer-list{display:grid;gap:12px;font-size:14.5px}
.footer-list a{color:rgba(245,243,236,.82)}
.footer-list a:hover{color:var(--accent)}
.footer-list li span{color:rgba(245,243,236,.6)}
.logo--footer{color:var(--paper)}
.logo--footer .logo-sub{color:rgba(245,243,236,.6)}
.logo--footer .logo-mark i:nth-child(1),.logo--footer .logo-mark i:nth-child(4){background:var(--accent)}
.logo--footer .logo-mark i:nth-child(2),.logo--footer .logo-mark i:nth-child(3){background:rgba(245,243,236,.35)}
.footer-bottom{
  border-top:1px solid rgba(245,243,236,.16);
  padding-top:24px;
  display:flex;flex-wrap:wrap;gap:12px 32px;justify-content:space-between;
  font-size:13.5px;color:rgba(245,243,236,.6);
}

/* 进场动效 */
.reveal{opacity:0;transform:translateY(16px);transition:opacity var(--t-slow) var(--ease),transform var(--t-slow) var(--ease)}
.reveal.is-in{opacity:1;transform:none}

/* 响应式 */
@media (max-width:1024px){
  .section{padding:80px 0}
  .row-item{grid-template-columns:80px minmax(0,1fr);gap:24px}
  .row-link{grid-column:2;justify-self:start;margin-top:6px}
  .split{gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px 0}
  .stat:nth-child(3){border-left:0;padding-left:0}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .section{padding:60px 0}
  .section-head{margin-bottom:36px}
  .nav{display:none}
  .menu-toggle{display:block}
  .header-inner{height:60px}
  .logo-text{font-size:16px}
  .hero-banner{padding:28px 0 48px;border-radius:0 0 24px 24px;min-height:260px}
  .hero-title{margin-top:24px}
  .hero-actions{gap:10px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-points{flex-direction:column;align-items:flex-start;gap:6px;margin-top:28px}
  .hero-points li+li::before{display:none}
  .row-item{grid-template-columns:1fr;gap:14px;padding:24px 16px}
  .row-num{font-size:28px}
  .row-link{grid-column:1}
  .split{grid-template-columns:1fr;gap:24px}
  .split.reverse .split-media{order:0}
  .split+.split{margin-top:56px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px 0}
  .stat{padding:8px 20px}
  .cta-band{padding:36px 24px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .site-footer{padding:52px 0 28px;margin-top:60px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .faq-q{font-size:16px;padding:20px 2px}
}
@media (max-width:520px){
  body{font-size:16px}
  .logo-sub{display:none}
  .btn{padding:13px 22px;font-size:15px}
  .stat-num{font-size:30px}
  .cta-band h2{font-size:24px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}