/* roulang page: index */
:root{
  --c-primary:#0E3B34;
  --c-primary-600:#14524A;
  --c-accent:#C0562E;
  --c-accent-soft:#F3E4DB;
  --c-bg:#F5F2EC;
  --c-surface:#FFFFFF;
  --c-dark:#0B1512;
  --c-ink:#16201D;
  --c-ink-2:#4A5854;
  --c-ink-3:#8A948F;
  --c-line:#E3DED4;
  --c-success:#2F7A5A;
  --c-warn:#B8791F;
  --c-error:#B23A2F;
  --c-info:#2E6B8A;
  --r-card:16px;
  --r-sm:12px;
  --r-pill:999px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(11,21,18,.04), 0 8px 24px -16px rgba(11,21,18,.18);
  --sh-2:0 12px 32px -14px rgba(11,21,18,.26);
  --t:.25s cubic-bezier(.2,.7,.3,1);
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  --sans:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --sec-pad:96px;
}

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

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

body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink-2);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4,p,figure,blockquote,dl,dd{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}

:focus-visible{
  outline:2px solid var(--c-accent);
  outline-offset:2px;
  border-radius:4px;
}

::selection{background:var(--c-accent-soft);color:var(--c-primary);}

.mono{font-family:var(--mono);font-variant-numeric:tabular-nums;}

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

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-600);transform:translateY(-1px);box-shadow:var(--sh-1);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:rgba(14,59,52,.35);}
.btn-ghost:hover{background:rgba(14,59,52,.08);border-color:var(--c-primary);}
.btn-light{background:#fff;color:var(--c-primary);}
.btn-light:hover{background:var(--c-accent-soft);transform:translateY(-1px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn:disabled,.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-weight:600;font-size:14px;
  padding:0;background:none;border:0;cursor:pointer;
}
.btn-link:hover{color:var(--c-accent);}
.btn-link .arrow{transition:transform var(--t);}
.btn-link:hover .arrow{transform:translateX(2px);}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-block;
  padding:4px 12px;
  border-radius:var(--r-pill);
  background:var(--c-accent-soft);
  color:var(--c-accent);
  font-size:12px;
  font-weight:600;
  letter-spacing:.04em;
  line-height:1.6;
  white-space:nowrap;
}
.badge-plain{
  background:rgba(14,59,52,.07);
  color:var(--c-primary);
}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(255,255,255,.92);
  border-bottom:1px solid var(--c-line);
  transition:background-color var(--t),border-color var(--t),backdrop-filter var(--t);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.78);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:#D3CCBF;
}
.header-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:14px;height:14px;border-radius:4px;
  background:var(--c-accent);
  display:inline-block;
  transform:rotate(45deg);
}
.brand-text{
  font-size:19px;
  font-weight:700;
  color:var(--c-ink);
  letter-spacing:-.01em;
}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  padding:9px 14px;
  border-radius:var(--r-pill);
  font-size:15px;
  color:var(--c-ink-2);
  transition:background-color var(--t),color var(--t);
}
.nav-link:hover{background:var(--c-accent-soft);color:var(--c-primary);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--c-primary);
}
.header-actions{display:flex;align-items:center;gap:12px;}

.menu-toggle{
  display:none;
  width:42px;height:42px;
  border:1px solid var(--c-line);
  border-radius:12px;
  background:#fff;
  cursor:pointer;
  padding:0;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:4px;
  transition:border-color var(--t),background-color var(--t);
}
.menu-toggle:hover{border-color:var(--c-primary);background:var(--c-accent-soft);}
.menu-toggle span{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--c-ink);
  transition:transform var(--t),opacity var(--t);
}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;
  inset:0;
  z-index:120;
  background:#fff;
  display:flex;
  flex-direction:column;
  padding:24px;
  overflow-y:auto;
  transform:translateX(100%);
  transition:transform .3s cubic-bezier(.2,.7,.3,1);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding-bottom:20px;border-bottom:1px solid var(--c-line);
}
.drawer-close{
  width:40px;height:40px;border-radius:12px;
  border:1px solid var(--c-line);background:#fff;cursor:pointer;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;line-height:1;color:var(--c-ink);
  transition:border-color var(--t),background-color var(--t);
}
.drawer-close:hover{border-color:var(--c-accent);background:var(--c-accent-soft);}
.drawer-nav{display:flex;flex-direction:column;padding:20px 0;flex:1;}
.drawer-nav a{
  padding:16px 4px;
  font-size:20px;
  font-weight:600;
  color:var(--c-ink);
  border-bottom:1px solid var(--c-line);
  transition:color var(--t),padding-left var(--t);
}
.drawer-nav a:hover,.drawer-nav a.is-active{color:var(--c-primary);padding-left:10px;}
.drawer-foot{padding-top:20px;border-top:1px solid var(--c-line);}
body.no-scroll{overflow:hidden;}

/* ---------- Hero ---------- */
.hero{padding:72px 0 0;}
.hero-grid{
  display:grid;
  grid-template-columns:minmax(0,55fr) minmax(0,45fr);
  gap:56px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--c-accent);
  margin-bottom:18px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px;}
.hero h1{
  font-size:clamp(2rem,4.2vw,3.1rem);
  line-height:1.18;
  font-weight:800;
  letter-spacing:-.02em;
  color:var(--c-ink);
  margin-bottom:16px;
}
.hero-sub{
  font-size:clamp(1.05rem,1.7vw,1.3rem);
  font-weight:600;
  color:var(--c-primary);
  margin-bottom:18px;
}
.hero-text{
  font-size:16px;
  line-height:1.85;
  color:var(--c-ink-2);
  max-width:52ch;
  margin-bottom:32px;
}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}

.hero-visual{position:relative;}
.hero-visual img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:20px;
  border:1px solid var(--c-line);
}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:12px;
  border:1px solid rgba(255,255,255,.5);
  border-radius:14px;
  pointer-events:none;
}
.hero-tag{
  position:absolute;
  left:22px;top:22px;
  padding:8px 14px;
  border-radius:var(--r-pill);
  background:rgba(11,21,18,.72);
  color:#fff;
  font-family:var(--mono);
  font-size:14px;
  letter-spacing:.12em;
  backdrop-filter:blur(4px);
}
.hero-caption{
  margin-top:12px;
  font-size:12px;
  color:var(--c-ink-3);
}

/* ---------- 属性条 ---------- */
.strip{
  margin-top:56px;
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
  display:grid;
  grid-template-columns:repeat(3,1fr);
}
.strip-item{
  padding:26px 24px;
  border-right:1px solid var(--c-line);
}
.strip-item:last-child{border-right:0;}
.strip-num{
  font-family:var(--mono);
  font-size:30px;
  font-weight:600;
  color:var(--c-primary);
  line-height:1.2;
  letter-spacing:-.01em;
}
.strip-label{font-size:13px;color:var(--c-ink-3);margin-top:4px;}

/* ---------- 板块通用 ---------- */
.section{padding:var(--sec-pad) 0 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:32px;
}
.section-head h2{
  font-size:clamp(1.4rem,2.4vw,1.9rem);
  font-weight:700;
  color:var(--c-ink);
  letter-spacing:-.015em;
  line-height:1.3;
}
.section-desc{
  font-size:14.5px;
  color:var(--c-ink-3);
  margin-top:8px;
  max-width:62ch;
}
.divider-top{border-top:1px solid var(--c-line);padding-top:var(--sec-pad);}

/* ---------- 专题合集编号卡 ---------- */
.topic-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.topic-card{
  display:flex;
  gap:18px;
  padding:20px;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.topic-card:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--sh-2);}
.topic-thumb{
  width:96px;
  flex-shrink:0;
  aspect-ratio:1/1;
  border-radius:var(--r-sm);
  overflow:hidden;
  background:var(--c-line);
}
.topic-thumb img{width:100%;height:100%;object-fit:cover;}
.topic-body{flex:1;min-width:0;display:flex;flex-direction:column;}
.topic-num{
  font-family:var(--mono);
  font-size:13px;
  font-weight:600;
  color:var(--c-accent);
  letter-spacing:.08em;
}
.topic-body h3{
  font-size:1.05rem;
  font-weight:600;
  color:var(--c-ink);
  margin:6px 0 6px;
  line-height:1.45;
}
.topic-meta{
  font-size:13px;
  color:var(--c-ink-3);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:8px;
  margin-top:auto;
  padding-top:10px;
}
.topic-arrow{
  color:var(--c-primary);
  font-size:16px;
  transition:transform var(--t);
}
.topic-card:hover .topic-arrow{transform:translateY(-2px);}

/* ---------- 精选：非对称网格 ---------- */
.feature-grid{
  display:grid;
  grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);
  gap:32px;
  align-items:start;
}
.feature-main{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
  display:block;
}
.feature-main:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--sh-2);}
.feature-main img{
  width:100%;
  aspect-ratio:16/9;
  object-fit:cover;
}
.feature-main-body{padding:24px;}
.feature-main-body h3{
  font-size:1.28rem;
  font-weight:700;
  color:var(--c-ink);
  line-height:1.45;
  margin:12px 0 10px;
}
.feature-main-body p{font-size:14.5px;line-height:1.75;color:var(--c-ink-2);}
.feature-main-meta{
  margin-top:16px;
  padding-top:14px;
  border-top:1px solid var(--c-line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--c-ink-3);
}
.feature-list{display:flex;flex-direction:column;}
.feature-item{
  display:flex;
  gap:16px;
  align-items:center;
  padding:16px 4px;
  border-bottom:1px solid var(--c-line);
  transition:background-color var(--t);
}
.feature-item:first-child{border-top:1px solid var(--c-line);}
.feature-item:hover{background:rgba(255,255,255,.85);}
.feature-item img{
  width:64px;height:64px;
  flex-shrink:0;
  border-radius:var(--r-sm);
  object-fit:cover;
  background:var(--c-line);
}
.feature-item h3{
  font-size:15px;
  font-weight:600;
  color:var(--c-ink);
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color var(--t);
}
.feature-item:hover h3{color:var(--c-primary);}
.feature-item time{font-size:12.5px;color:var(--c-ink-3);display:block;margin-top:6px;}

/* ---------- 最新信息 ---------- */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.news-card{
  display:flex;
  flex-direction:column;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.news-card:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--sh-2);}
.news-thumb{display:block;background:var(--c-line);}
.news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.news-body{padding:20px;display:flex;flex-direction:column;flex:1;}
.news-body h3{
  font-size:1.02rem;
  font-weight:600;
  color:var(--c-ink);
  line-height:1.5;
  margin:12px 0 10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-body h3 a{transition:color var(--t);}
.news-body h3 a:hover{color:var(--c-primary);}
.news-desc{
  font-size:14px;
  line-height:1.72;
  color:var(--c-ink-2);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  margin-top:auto;
  padding-top:16px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--c-ink-3);
}
.news-meta .read{color:var(--c-primary);font-weight:600;font-size:13px;transition:color var(--t);}
.news-meta .read:hover{color:var(--c-accent);}

.empty-state{
  grid-column:1 / -1;
  text-align:center;
  padding:64px 24px;
  background:var(--c-surface);
  border:1px dashed var(--c-line);
  border-radius:var(--r-card);
}
.empty-state svg{width:44px;height:44px;margin:0 auto 16px;color:var(--c-ink-3);display:block;}
.empty-state p{font-size:15px;color:var(--c-ink-3);margin-bottom:20px;}

/* ---------- 数据条 ---------- */
.stats{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--c-line);
  border-bottom:1px solid var(--c-line);
}
.stats-item{
  padding:36px 24px;
  border-right:1px solid var(--c-line);
}
.stats-item:last-child{border-right:0;}
.stats-num{
  font-family:var(--mono);
  font-size:clamp(1.9rem,3.2vw,2.5rem);
  font-weight:600;
  color:var(--c-ink);
  line-height:1.15;
  letter-spacing:-.02em;
}
.stats-label{font-size:13px;color:var(--c-ink-3);margin-top:8px;}

/* ---------- FAQ ---------- */
.faq{max-width:860px;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:first-child{border-top:1px solid var(--c-line);}
.faq-q{
  width:100%;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:14px 0;
  background:none;
  border:0;
  cursor:pointer;
  text-align:left;
  transition:color var(--t);
}
.faq-q:hover{color:var(--c-primary);}
.faq-q h3{
  font-size:1.02rem;
  font-weight:600;
  color:var(--c-ink);
  line-height:1.55;
  transition:color var(--t);
}
.faq-q:hover h3{color:var(--c-primary);}
.faq-icon{
  flex-shrink:0;
  width:30px;height:30px;
  border-radius:9px;
  border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;
  color:var(--c-ink-2);
  font-size:17px;
  line-height:1;
  transition:transform var(--t),color var(--t),border-color var(--t),background-color var(--t);
}
.faq-item.is-open .faq-icon{
  transform:rotate(45deg);
  color:var(--c-accent);
  border-color:var(--c-accent);
  background:var(--c-accent-soft);
}
.faq-a{
  max-width:760px;
  overflow:hidden;
  max-height:0;
  transition:max-height .3s cubic-bezier(.2,.7,.3,1);
}
.faq-a p{
  font-size:15px;
  line-height:1.8;
  color:var(--c-ink-2);
  padding:0 56px 22px 0;
}
.faq-item.is-open .faq-a{max-height:420px;}

/* ---------- 底部 CTA ---------- */
.cta-band{
  margin-top:var(--sec-pad);
  background:var(--c-dark);
  color:#fff;
  border-top:1px solid rgba(255,255,255,.08);
}
.cta-inner{
  padding:72px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-inner h2{
  font-size:clamp(1.4rem,2.4vw,1.85rem);
  font-weight:700;
  line-height:1.35;
  color:#fff;
  max-width:26ch;
}
.cta-inner p{
  margin-top:10px;
  font-size:14.5px;
  color:rgba(255,255,255,.62);
  max-width:60ch;
}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--c-dark);
  color:rgba(255,255,255,.62);
  font-size:14px;
}
.footer-grid{
  padding:72px 0 0;
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.1fr;
  gap:40px;
  border-bottom:1px solid rgba(255,255,255,.1);
  padding-bottom:48px;
}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{margin-top:16px;line-height:1.8;font-size:13.5px;color:rgba(255,255,255,.58);max-width:34ch;}
.footer-title{
  color:#fff;
  font-size:14px;
  font-weight:600;
  letter-spacing:.02em;
  margin-bottom:18px;
}
.footer-list li{margin-bottom:12px;}
.footer-list a{color:rgba(255,255,255,.62);transition:color var(--t);}
.footer-list a:hover{color:#fff;}
.footer-contact li{margin-bottom:12px;line-height:1.7;font-size:13.5px;}
.footer-bottom{
  padding:26px 0 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.45);
}

/* ---------- 入场动效 ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .5s cubic-bezier(.2,.7,.3,1),transform .5s cubic-bezier(.2,.7,.3,1);}
.reveal.is-visible{opacity:1;transform:none;}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.001ms !important;animation-duration:.001ms !important;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--sec-pad:72px;}
  .container{padding:0 24px;}
  .main-nav{display:none;}
  .menu-toggle{display:flex;}
  .header-actions .btn{display:none;}
  .hero{padding-top:56px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-visual img{aspect-ratio:16/9;height:240px;}
  .topic-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .feature-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stats{grid-template-columns:repeat(2,1fr);}
  .stats-item:nth-child(2){border-right:0;}
  .stats-item:nth-child(1),.stats-item:nth-child(2){border-bottom:1px solid var(--c-line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}

@media (max-width:767px){
  :root{--sec-pad:56px;}
  .container{padding:0 16px;}
  .hero h1{font-size:1.75rem;}
  .strip{grid-template-columns:1fr;}
  .strip-item{border-right:0;border-bottom:1px solid var(--c-line);padding:20px 0;}
  .strip-item:last-child{border-bottom:0;}
  .topic-grid{grid-template-columns:1fr;gap:16px;}
  .news-grid{grid-template-columns:1fr;gap:16px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .cta-inner{padding:56px 0;flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-top:56px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .faq-a p{padding-right:0;}
}

@media (max-width:520px){
  .stats{grid-template-columns:1fr;}
  .stats-item{border-right:0;border-bottom:1px solid var(--c-line);padding:26px 0;}
  .stats-item:last-child{border-bottom:0;}
  .feature-main-body{padding:20px;}
  .hero-cta .btn{width:100%;}
}

/* roulang page: article */
:root{
  --c-primary:#0E3B34;
  --c-primary-600:#14524A;
  --c-accent:#C0562E;
  --c-accent-soft:#F3E4DB;
  --c-bg:#F5F2EC;
  --c-surface:#FFFFFF;
  --c-dark:#0B1512;
  --c-ink:#16201D;
  --c-ink-2:#4A5854;
  --c-ink-3:#8A948F;
  --c-line:#E3DED4;
  --c-success:#2F7A5A;
  --c-warning:#B8791F;
  --c-error:#B23A2F;
  --c-info:#2E6B8A;
  --radius-card:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,21,18,.04), 0 8px 24px -16px rgba(11,21,18,.18);
  --shadow-2:0 12px 32px -14px rgba(11,21,18,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:.25s var(--ease);
  --font-cn:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sec-pc:96px;
  --sec-tablet:72px;
  --sec-phone:56px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-ink-2);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;font-size:inherit;cursor:pointer;border:0;background:none;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
input,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}
.container{max-width:1200px;margin:0 auto;padding:0 32px;}
.mono{font-family:var(--font-mono);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--c-line);
  transition:background-color var(--t),border-color var(--t);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:#D5CEC2;
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:14px;height:14px;border-radius:4px;
  background:var(--c-accent);
  box-shadow:0 0 0 4px var(--c-accent-soft);
}
.brand-text{
  font-size:17px;font-weight:700;color:var(--c-ink);letter-spacing:-.01em;
}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  display:inline-block;padding:8px 14px;border-radius:var(--radius-pill);
  font-size:14.5px;color:var(--c-ink-2);
  transition:background-color var(--t),color var(--t);
  position:relative;
}
.nav-link:hover{background:var(--c-accent-soft);color:var(--c-primary);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 20px;border-radius:var(--radius-pill);
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;
  transition:background-color var(--t),transform var(--t);
}
.nav-cta:hover{background:var(--c-primary-600);transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--c-line);align-items:center;justify-content:center;
}
.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;}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:80;background:#fff;
  display:flex;flex-direction:column;padding:24px;
  transform:translateX(100%);opacity:0;pointer-events:none;
  transition:transform var(--t),opacity var(--t);
}
.drawer.is-open{transform:translateX(0);opacity:1;pointer-events:auto;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--c-line);
  font-size:20px;color:var(--c-ink);line-height:1;
}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  padding:14px 12px;border-radius:12px;font-size:20px;font-weight:600;color:var(--c-ink);
  transition:background-color var(--t),color var(--t);
}
.drawer-nav a:hover,.drawer-nav a.is-active{background:var(--c-accent-soft);color:var(--c-primary);}
.drawer-foot{margin-top:auto;padding-top:24px;border-top:1px solid var(--c-line);}
.drawer-foot .nav-cta{width:100%;justify-content:center;padding:14px;font-size:15px;}
body.no-scroll{overflow:hidden;}

/* ---------- article header ---------- */
.page-head{padding:40px 0 0;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-ink-3);margin-bottom:26px;
}
.breadcrumb a{color:var(--c-ink-3);transition:color var(--t);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb .sep{color:#BFB9AE;}
.breadcrumb .current{color:var(--c-ink-3);}
.article-head{max-width:820px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  background:var(--c-accent-soft);color:var(--c-accent);
  font-size:12px;font-weight:600;letter-spacing:.04em;
}
.article-head h1{
  margin:18px 0 0;
  font-size:clamp(2rem,4.2vw,3.1rem);
  line-height:1.25;font-weight:800;letter-spacing:-.02em;color:var(--c-ink);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:20px;font-size:13px;color:var(--c-ink-3);
}
.article-meta .vline{width:1px;height:12px;background:var(--c-line);}
.article-meta .num{font-family:var(--font-mono);}

/* ---------- cover ---------- */
.article-cover{margin-top:36px;}
.article-cover figure{margin:0;}
.article-cover img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--radius-card);border:1px solid var(--c-line);
}
.article-cover figcaption{
  margin-top:12px;font-size:12px;color:var(--c-ink-3);text-align:center;
}

/* ---------- body ---------- */
.article-body{
  max-width:756px;margin:56px auto 0;
  font-size:16.5px;line-height:1.9;color:var(--c-ink-2);
}
.article-body p{margin:0 0 1.2em;}
.article-body h2{
  position:relative;
  margin:2.2em 0 .8em;padding-left:16px;
  font-size:clamp(1.4rem,2.4vw,1.9rem);line-height:1.4;font-weight:700;color:var(--c-ink);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;
  background:var(--c-primary);border-radius:2px;
}
.article-body h3{
  margin:1.8em 0 .6em;font-size:1.05rem;font-weight:600;color:var(--c-ink);line-height:1.5;
}
.article-body img{
  border-radius:var(--radius-sm);margin:1.6em auto;max-width:900px;width:100%;height:auto;
}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:.4em 0;}
.article-body blockquote{
  margin:1.6em 0;padding:16px 20px;
  border-left:3px solid var(--c-accent);
  background:#FBF7F2;border-radius:0 var(--radius-sm) var(--radius-sm) 0;
  color:var(--c-ink-2);
}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:14.5px;
  border:1px solid var(--c-line);border-radius:var(--radius-sm);overflow:hidden;
}
.article-body th,.article-body td{
  padding:12px 14px;border-bottom:1px solid var(--c-line);text-align:left;
}
.article-body thead th{background:#F0EBE2;color:var(--c-ink);font-weight:600;}
.article-body tbody tr:nth-child(even){background:#FBF9F5;}
.article-body a{color:var(--c-primary);border-bottom:1px solid var(--c-accent);}
.article-body strong{color:var(--c-ink);}
.table-scroll{overflow-x:auto;}

/* ---------- empty state ---------- */
.empty-state{
  max-width:756px;margin:56px auto 0;padding:48px 28px;text-align:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--radius-card);
}
.empty-state svg{width:40px;height:40px;stroke:var(--c-ink-3);margin:0 auto 16px;}
.empty-state p{color:var(--c-ink-3);font-size:15px;margin-bottom:20px;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-600);transform:translateY(-1px);}
.btn-ghost{
  background:transparent;color:var(--c-primary);border:1px solid var(--c-primary);
}
.btn-ghost:hover{background:rgba(14,59,52,.08);}
.btn-pill{
  padding:9px 18px;border-radius:var(--radius-pill);
  border:1px solid var(--c-line);background:var(--c-surface);
  font-size:13.5px;font-weight:500;color:var(--c-ink-2);
  transition:border-color var(--t),color var(--t),background-color var(--t);
}
.btn-pill:hover{border-color:var(--c-primary);color:var(--c-primary);background:#fff;}
.btn-pill.is-on{background:var(--c-accent-soft);border-color:var(--c-accent);color:var(--c-accent);}
.btn:disabled,.btn[disabled]{opacity:.4;cursor:not-allowed;}}

/* ---------- action bar ---------- */
.action-bar{
  max-width:756px;margin:48px auto 0;padding:20px 0;
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
}
.action-bar .tip{margin-left:auto;font-size:12.5px;color:var(--c-ink-3);}

/* ---------- related ---------- */
.section{padding:var(--sec-pc) 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:16px;margin-bottom:32px;flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:700;color:var(--c-ink);line-height:1.35;
}
.section-head .more{
  font-size:14px;color:var(--c-primary);font-weight:600;
  border-bottom:1px solid transparent;transition:border-color var(--t);
}
.section-head .more:hover{border-bottom-color:var(--c-accent);}
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.card{
  display:flex;flex-direction:column;height:100%;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform var(--t),box-shadow var(--t),border-color var(--t);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:var(--c-primary);}
.card-media{aspect-ratio:16/9;overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s 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-body h3{
  font-size:16.5px;font-weight:600;color:var(--c-ink);line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body p{
  font-size:14.5px;line-height:1.7;color:var(--c-ink-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  margin-top:auto;display:flex;align-items:center;gap:10px;
  font-size:12.5px;color:var(--c-ink-3);font-family:var(--font-mono);
}
.card-link{font-size:13.5px;font-weight:600;color:var(--c-primary);transition:color var(--t);}
.card-link:hover{color:var(--c-accent);}

/* ---------- prev next ---------- */
.pn-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:32px;
}
.pn-item{
  padding:20px 22px;border:1px solid var(--c-line);border-radius:var(--radius-sm);
  background:transparent;transition:background-color var(--t),border-color var(--t);
}
.pn-item:hover{background:#EFEAE1;border-color:var(--c-primary);}
.pn-item .pn-label{font-size:12.5px;color:var(--c-ink-3);display:block;margin-bottom:8px;}
.pn-item .pn-title{
  font-size:15.5px;font-weight:600;color:var(--c-ink);line-height:1.55;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pn-item.is-next{text-align:right;}

/* ---------- cta band ---------- */
.cta-band{
  margin-top:var(--sec-pc);
  background:var(--c-dark);color:#fff;padding:72px 0;
}
.cta-band .inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:700;color:#fff;}
.cta-band p{margin-top:10px;font-size:14.5px;color:rgba(255,255,255,.66);max-width:560px;}
.cta-band .btn-primary{background:#fff;color:var(--c-dark);}
.cta-band .btn-primary:hover{background:var(--c-accent-soft);}

/* ---------- footer ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.72);padding:72px 0 32px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand .brand-text{color:#fff;}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px;}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em;}
.footer-list li,.footer-contact li{margin-bottom:10px;font-size:14px;color:rgba(255,255,255,.6);}
.footer-list a{color:rgba(255,255,255,.72);transition:color var(--t);}
.footer-list a:hover{color:#fff;}
.footer-bottom{
  margin-top:48px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(12px);transition:opacity .6s var(--ease),transform .6s var(--ease);}
.reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition:none!important;animation:none!important;}
}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .container{padding:0 24px;}
  .main-nav,.header-inner>.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .section{padding:var(--sec-tablet) 0 0;}
  .cta-band{margin-top:var(--sec-tablet);}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 16px;}
  .section{padding:var(--sec-phone) 0 0;}
  .page-head{padding-top:28px;}
  .grid-3{grid-template-columns:1fr;}
  .pn-grid{grid-template-columns:1fr;gap:16px;}
  .pn-item.is-next{text-align:left;}
  .article-body{font-size:16px;margin-top:40px;}
  .action-bar .tip{display:none;}
  .cta-band{margin-top:var(--sec-phone);padding:56px 0;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#0E3B34;
  --c-primary-600:#14524A;
  --c-accent:#C0562E;
  --c-accent-soft:#F3E4DB;
  --c-bg:#F5F2EC;
  --c-surface:#FFFFFF;
  --c-dark:#0B1512;
  --c-ink:#16201D;
  --c-ink-2:#4A5854;
  --c-ink-3:#8A948F;
  --c-line:#E3DED4;
  --c-success:#2F7A5A;
  --c-warning:#B8791F;
  --c-error:#B23A2F;
  --c-info:#2E6B8A;
  --radius-card:16px;
  --radius-sm:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(11,21,18,.04),0 8px 24px -16px rgba(11,21,18,.18);
  --shadow-2:0 12px 32px -14px rgba(11,21,18,.26);
  --ease:0.25s cubic-bezier(.2,.7,.3,1);
  --sect:96px;
  --font-sans:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --font-mono:"IBM Plex 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:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.skip-link{
  position:absolute;left:16px;top:-60px;z-index:200;
  background:var(--c-primary);color:#fff;padding:10px 18px;border-radius:var(--radius-pill);
  transition:top var(--ease);
}
.skip-link:focus{top:16px}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(255,255,255,.9);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:saturate(140%) blur(12px);
  transition:background-color var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{background:rgba(255,255,255,.97);border-color:#D6CFC2}
.header-inner{
  height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--c-ink);font-size:1.05rem;letter-spacing:-.01em;white-space:nowrap}
.brand-mark{width:14px;height:14px;border-radius:4px;background:var(--c-accent);flex:none}
.brand-text{font-weight:700}
.main-nav{display:flex;align-items:center;gap:4px;flex-wrap:nowrap}
.nav-link{
  position:relative;display:inline-block;padding:9px 14px;border-radius:var(--radius-pill);
  font-size:14.5px;color:var(--c-ink-2);white-space:nowrap;
  transition:background-color var(--ease),color var(--ease);
}
.nav-link:hover{background:var(--c-accent-soft);color:var(--c-primary)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.header-actions{display:flex;align-items:center;gap:10px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-pill);
  border:1px solid var(--c-line);background:var(--c-surface);
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px;transition:transform var(--ease),opacity var(--ease)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

.nav-drawer{
  position:fixed;inset:0;z-index:120;background:var(--c-surface);
  padding:88px 24px 32px;overflow-y:auto;
  opacity:0;visibility:hidden;transform:translateY(-10px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
}
.nav-drawer.is-open{opacity:1;visibility:visible;transform:none}
.nav-drawer .drawer-brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--c-ink);font-size:1.1rem;margin-bottom:28px}
.drawer-close{
  position:absolute;top:20px;right:20px;width:44px;height:44px;border-radius:var(--radius-pill);
  border:1px solid var(--c-line);display:grid;place-items:center;font-size:20px;color:var(--c-ink);
}
.drawer-list{display:flex;flex-direction:column;gap:6px;margin-bottom:32px}
.drawer-list a{
  display:block;padding:14px 16px;border-radius:var(--radius-sm);
  font-size:1.15rem;font-weight:600;color:var(--c-ink);border:1px solid transparent;
  transition:background-color var(--ease),color var(--ease);
}
.drawer-list a:hover{background:var(--c-accent-soft);color:var(--c-primary)}
.drawer-list a.is-active{color:var(--c-primary);background:var(--c-accent-soft)}
.drawer-cta{width:100%}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-pill);padding:13px 26px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-600);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:rgba(14,59,52,.35)}
.btn-ghost:hover{background:rgba(14,59,52,.08)}
.btn-light{background:#fff;color:var(--c-primary)}
.btn-light:hover{background:var(--c-accent-soft);transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.btn-outline-light:hover{background:rgba(255,255,255,.12)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn:disabled,.is-disabled{opacity:.4;cursor:not-allowed;transform:none}

/* ---------- hero ---------- */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  padding:84px 0 72px;
  background-image:
    linear-gradient(120deg,rgba(14,59,52,.9) 0%,rgba(11,21,18,.86) 100%),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";position:absolute;right:-80px;top:-80px;width:320px;height:320px;
  border:1px solid rgba(255,255,255,.16);border-radius:50%;
}
.page-hero .container{position:relative;z-index:2}
.crumb{font-size:13px;color:rgba(255,255,255,.7);margin-bottom:22px;display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumb a{color:rgba(255,255,255,.7);transition:color var(--ease)}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.5}
.crumb .current{color:rgba(255,255,255,.92)}
.page-hero h1{
  font-size:clamp(1.9rem,3.8vw,2.7rem);font-weight:800;letter-spacing:-.02em;
  line-height:1.22;color:#fff;max-width:820px;
}
.page-hero .hero-lead{
  margin-top:18px;max-width:660px;font-size:1rem;line-height:1.8;color:rgba(255,255,255,.82);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags span{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.35);font-size:12.5px;letter-spacing:.04em;color:rgba(255,255,255,.9);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}

/* ---------- sections ---------- */
.section{padding:var(--sect) 0}
.section-alt{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.section-head{max-width:720px;margin-bottom:36px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.12em;
  color:var(--c-accent);font-family:var(--font-mono);text-transform:uppercase;margin-bottom:12px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px}
.section-head h2{
  font-size:clamp(1.4rem,2.3vw,1.85rem);font-weight:700;color:var(--c-ink);
  letter-spacing:-.01em;line-height:1.3;
}
.section-head p{margin-top:14px;font-size:15px;color:var(--c-ink-2);line-height:1.8}

/* ---------- cards ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.card{
  display:flex;flex-direction:column;background:var(--c-surface);
  border:1px solid var(--c-line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--shadow-2)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:var(--c-line)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .45s cubic-bezier(.2,.7,.3,1)}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1}
.tag{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:var(--radius-pill);
  background:var(--c-accent-soft);color:var(--c-accent);
  font-size:12px;letter-spacing:.04em;font-weight:600;
}
.card-title{font-size:1.03rem;font-weight:600;color:var(--c-ink);line-height:1.5}
.card-excerpt{font-size:14.5px;line-height:1.7;color:var(--c-ink-2)}
.card-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;border-top:1px solid var(--c-line);
  font-size:13px;color:var(--c-ink-3);font-family:var(--font-mono);
}
.card-link{color:var(--c-primary);font-weight:600;font-family:var(--font-sans);transition:color var(--ease)}
.card-link::after{content:" →";display:inline-block;transition:transform var(--ease)}
.card:hover .card-link::after{transform:translateX(2px)}
.card-link:hover{color:var(--c-accent)}

/* ---------- stats band ---------- */
.stats-band{background:var(--c-surface);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr))}
.stat{padding:44px 28px}
.stat + .stat{border-left:1px solid var(--c-line)}
.stat-num{
  font-family:var(--font-mono);font-size:clamp(1.9rem,3vw,2.4rem);font-weight:700;
  color:var(--c-primary);line-height:1.1;letter-spacing:-.02em;
}
.stat-num small{font-size:.45em;margin-left:4px;color:var(--c-ink-3);font-weight:500}
.stat-label{margin-top:10px;font-size:13px;color:var(--c-ink-3);letter-spacing:.02em}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:first-child{border-top:1px solid var(--c-line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;padding:16px 0;text-align:left;
  font-size:1.02rem;font-weight:600;color:var(--c-ink);line-height:1.55;
  transition:color var(--ease);
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{
  flex:none;width:28px;height:28px;border-radius:8px;border:1px solid var(--c-line);
  display:grid;place-items:center;color:var(--c-accent);font-size:16px;line-height:1;
  transition:transform var(--ease),background-color var(--ease),border-color var(--ease);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:var(--c-accent-soft);border-color:var(--c-accent)}
.faq-a{display:none;max-width:760px;padding:0 0 24px;font-size:15px;line-height:1.85;color:var(--c-ink-2)}
.faq-item.is-open .faq-a{display:block}

/* ---------- cta ---------- */
.cta-band{
  position:relative;color:#fff;overflow:hidden;
  background-image:
    linear-gradient(120deg,rgba(11,21,18,.94) 0%,rgba(14,59,52,.9) 100%),
    url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  padding:76px 0;
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap}
.cta-inner h2{font-size:clamp(1.4rem,2.3vw,1.85rem);font-weight:700;color:#fff;letter-spacing:-.01em;line-height:1.35;max-width:640px}
.cta-inner p{margin-top:14px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.75);max-width:620px}

/* ---------- footer ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.7);padding:72px 0 32px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px}
.footer-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-list li + li,.footer-contact li + li{margin-top:10px}
.footer-list a,.footer-contact li{font-size:14px;color:rgba(255,255,255,.62);transition:color var(--ease)}
.footer-list a:hover{color:#fff}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

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

/* ---------- responsive ---------- */
@media (max-width:1023px){
  :root{--sect:72px}
  .container{padding:0 24px}
  .main-nav{display:none}
  .nav-toggle{display:inline-flex}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat{padding:32px 20px}
  .stat:nth-child(3){border-left:0}
  .stat:nth-child(n+3){border-top:1px solid var(--c-line)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  :root{--sect:56px}
  .container{padding:0 16px}
  .header-inner{height:64px}
  .brand{font-size:.98rem}
  .page-hero{padding:60px 0 52px}
  .page-hero::after{display:none}
  .card-grid{grid-template-columns:1fr;gap:16px}
  .stats-grid{grid-template-columns:1fr}
  .stat{border-left:0 !important;padding:24px 0}
  .stat + .stat{border-top:1px solid var(--c-line)}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-inner .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .hero-actions .btn{width:100%}
}
@media (max-width:520px){
  .page-hero h1{font-size:1.75rem}
  .card-body{padding:18px}
}

/* roulang page: category3 */
:root{
  --c-primary:#0E3B34;
  --c-primary-600:#14524A;
  --c-accent:#C0562E;
  --c-accent-soft:#F3E4DB;
  --c-bg:#F5F2EC;
  --c-surface:#FFFFFF;
  --c-dark:#0B1512;
  --c-ink:#16201D;
  --c-ink-2:#4A5854;
  --c-ink-3:#8A948F;
  --c-line:#E3DED4;
  --c-success:#2F7A5A;
  --c-warning:#B8791F;
  --c-error:#B23A2F;
  --c-info:#2E6B8A;
  --r-card:16px;
  --r-small:12px;
  --r-pill:999px;
  --r-field:10px;
  --sh-1:0 1px 2px rgba(11,21,18,.04), 0 8px 24px -16px rgba(11,21,18,.18);
  --sh-2:0 12px 32px -14px rgba(11,21,18,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:.25s var(--ease);
  --space-section:96px;
  --font-sans:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --font-mono:"IBM Plex 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:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--c-ink-2);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:var(--space-section) 0;}
.section-tight{padding-top:0;}
.section-head{margin-bottom:32px;}
.section-head h2{font-size:clamp(1.4rem,2.4vw,1.9rem);letter-spacing:-.01em;}
.section-head p{margin-top:10px;font-size:15px;color:var(--c-ink-2);max-width:720px;}
.eyebrow{
  display:inline-block;font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  color:var(--c-accent);text-transform:uppercase;margin-bottom:14px;
}
.rule{height:1px;background:var(--c-line);border:0;margin:0;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  border-bottom:1px solid var(--c-line);
  transition:background-color var(--t),border-color var(--t);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom-color:#D3CCBE;
}
.nav-inner{
  height:72px;display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--c-ink);}
.brand-mark{
  width:14px;height:14px;border-radius:4px;background:var(--c-accent);flex:0 0 auto;
}
.brand-text{font-size:1.05rem;font-weight:700;letter-spacing:-.01em;}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  display:inline-block;padding:9px 14px;border-radius:var(--r-pill);
  font-size:14.5px;font-weight:500;color:var(--c-ink-2);
  transition:background-color var(--t),color var(--t);
  position:relative;
}
.nav-link:hover{background:var(--c-accent-soft);color:var(--c-primary);}
.nav-link.is-active{color:var(--c-primary);font-weight:600;}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.nav-cta{
  display:inline-block;padding:10px 20px;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:600;
  transition:background-color var(--t),transform var(--t);
}
.nav-cta:hover{background:var(--c-primary-600);transform:translateY(-1px);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-small);
  border:1px solid var(--c-line);background:var(--c-surface);
  align-items:center;justify-content:center;cursor:pointer;
  transition:border-color var(--t),background-color var(--t);
}
.nav-toggle:hover{border-color:var(--c-primary);}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink);
}
.nav-toggle span::before{top:-6px;}
.nav-toggle span::after{top:6px;}

/* ---------- 移动抽屉 ---------- */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,21,18,.45);z-index:80;
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);
}
.drawer{
  position:fixed;inset:0;background:var(--c-surface);z-index:90;
  transform:translateX(100%);transition:transform .3s var(--ease);
  display:flex;flex-direction:column;padding:20px 24px 32px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:28px;}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-small);border:1px solid var(--c-line);
  background:var(--c-surface);font-size:20px;line-height:1;cursor:pointer;color:var(--c-ink);
  transition:border-color var(--t),color var(--t);
}
.drawer-close:hover{border-color:var(--c-accent);color:var(--c-accent);}
.drawer-nav{display:flex;flex-direction:column;gap:6px;}
.drawer-nav a{
  font-size:1.15rem;font-weight:600;color:var(--c-ink);padding:14px 4px;
  border-bottom:1px solid var(--c-line);transition:color var(--t),padding-left var(--t);
}
.drawer-nav a:hover{color:var(--c-primary);padding-left:10px;}
.drawer-nav a.is-active{color:var(--c-primary);}
.drawer-cta{
  margin-top:28px;display:block;text-align:center;padding:14px;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;font-weight:600;
}
body.no-scroll{overflow:hidden;}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;color:#fff;overflow:hidden;
  background-image:linear-gradient(90deg,rgba(14,59,52,.92) 0%,rgba(14,59,52,.72) 55%,rgba(14,59,52,.55) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:rgba(255,255,255,.18);
}
.page-hero-inner{padding:64px 0 72px;position:relative;z-index:2;max-width:900px;}
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:rgba(255,255,255,.7);margin-bottom:20px;
}
.crumbs a{color:rgba(255,255,255,.85);transition:color var(--t);}
.crumbs a:hover{color:#fff;}
.crumbs span.sep{opacity:.5;}
.crumbs .current{color:rgba(255,255,255,.62);}
.page-hero h1{
  color:#fff;font-size:clamp(1.9rem,4.2vw,3rem);font-weight:800;letter-spacing:-.02em;
  line-height:1.22;max-width:840px;
}
.page-hero .lede{
  margin-top:18px;font-size:16.5px;line-height:1.8;color:rgba(255,255,255,.86);max-width:720px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tag{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.06em;
  padding:6px 12px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.34);color:rgba(255,255,255,.9);
}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:40px;margin-top:40px;
  padding-top:26px;border-top:1px solid rgba(255,255,255,.2);
}
.hero-stat b{
  display:block;font-family:var(--font-mono);font-size:1.7rem;font-weight:600;
  color:#fff;line-height:1.2;
}
.hero-stat span{font-size:13px;color:rgba(255,255,255,.68);}

/* ---------- 图文交错 ---------- */
.split-list{display:flex;flex-direction:column;gap:72px;}
.split-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.split-row.reverse .split-media{order:2;}
.split-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  aspect-ratio:16/10;background:var(--c-line);box-shadow:var(--sh-1);
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-media .media-index{
  position:absolute;top:16px;left:16px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;
  background:rgba(11,21,18,.7);color:#fff;padding:5px 11px;border-radius:var(--r-pill);
  border:1px solid rgba(255,255,255,.22);
}
.split-body h3{font-size:clamp(1.15rem,1.9vw,1.45rem);font-weight:700;letter-spacing:-.01em;}
.split-body .kicker{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.14em;
  color:var(--c-accent);display:block;margin-bottom:12px;
}
.split-body p{margin-top:14px;font-size:15.5px;line-height:1.85;color:var(--c-ink-2);}
.point-list{margin-top:20px;display:flex;flex-direction:column;gap:10px;}
.point-list li{
  position:relative;padding-left:20px;font-size:14.5px;color:var(--c-ink-2);line-height:1.75;
}
.point-list li::before{
  content:"";position:absolute;left:0;top:11px;width:8px;height:2px;background:var(--c-accent);
}
.text-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:22px;
  font-size:14px;font-weight:600;color:var(--c-primary);
  background-image:linear-gradient(var(--c-accent),var(--c-accent));
  background-repeat:no-repeat;background-size:0% 2px;background-position:0 100%;
  transition:background-size var(--t),color var(--t);padding-bottom:2px;
}
.text-link:hover{background-size:100% 2px;color:var(--c-primary-600);}
.text-link .arrow{transition:transform var(--t);}
.text-link:hover .arrow{transform:translateX(3px);}

/* ---------- 编号清单 ---------- */
.num-block{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:8px 36px;box-shadow:var(--sh-1);
}
.num-item{
  display:grid;grid-template-columns:88px 1fr 200px;gap:24px;align-items:start;
  padding:30px 0;border-bottom:1px solid var(--c-line);
  transition:background-color var(--t);
}
.num-item:last-child{border-bottom:0;}
.num-item:hover{background:rgba(245,242,236,.7);}
.num-item .num{
  font-family:var(--font-mono);font-size:2rem;font-weight:600;color:var(--c-accent);
  line-height:1.1;letter-spacing:-.02em;
}
.num-item h3{font-size:1.02rem;font-weight:600;margin-bottom:8px;}
.num-item p{font-size:14.5px;line-height:1.75;color:var(--c-ink-2);}
.num-item .num-meta{
  font-family:var(--font-mono);font-size:12.5px;color:var(--c-ink-3);line-height:1.9;
  border-left:1px solid var(--c-line);padding-left:20px;
}
.num-item .num-meta b{display:block;color:var(--c-ink);font-weight:600;font-size:13px;}

/* ---------- 数据条 ---------- */
.metric-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
}
.metric{
  padding:30px 26px;border-right:1px solid var(--c-line);
}
.metric:last-child{border-right:0;}
.metric b{
  display:block;font-family:var(--font-mono);font-size:1.85rem;font-weight:600;
  color:var(--c-ink);line-height:1.2;
}
.metric span{display:block;margin-top:8px;font-size:13px;color:var(--c-ink-3);}

/* ---------- FAQ ---------- */
.faq-list{border-top:1px solid var(--c-line);}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:56px;padding:18px 0;background:none;border:0;cursor:pointer;text-align:left;
}
.faq-question h3{font-size:1.02rem;font-weight:600;color:var(--c-ink);}
.faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:8px;border:1px solid var(--c-line);
  display:flex;align-items:center;justify-content:center;color:var(--c-ink-2);
  font-size:18px;line-height:1;transition:transform var(--t),color var(--t),border-color var(--t);
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);color:var(--c-accent);border-color:var(--c-accent);}
.faq-answer{
  max-width:760px;overflow:hidden;height:0;transition:height .3s var(--ease);
}
.faq-answer p{padding:0 0 24px;font-size:15px;line-height:1.8;color:var(--c-ink-2);}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-dark);color:#fff;}
.cta-inner{
  padding:72px 0;display:flex;align-items:center;justify-content:space-between;
  gap:40px;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:clamp(1.35rem,2.3vw,1.8rem);letter-spacing:-.01em;}
.cta-inner p{margin-top:12px;color:rgba(255,255,255,.66);font-size:15px;max-width:560px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 28px;border-radius:var(--r-pill);font-size:15px;font-weight:600;
  cursor:pointer;border:1px solid transparent;transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t);
}
.btn-primary{background:var(--c-primary);color:#fff;}
.btn-primary:hover{background:var(--c-primary-600);transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--c-dark);}
.btn-light:hover{background:var(--c-accent-soft);color:var(--c-primary);transform:translateY(-1px);}
.btn-ghost{border-color:rgba(255,255,255,.4);color:#fff;background:transparent;}
.btn-ghost:hover{background:rgba(255,255,255,.1);}
.btn:disabled{opacity:.4;cursor:not-allowed;transform:none;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.66);padding-top:72px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:52px;
}
.footer-brand .brand{color:#fff;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px;}
.footer-title{
  font-size:13px;font-weight:600;letter-spacing:.08em;color:#fff;margin-bottom:16px;
}
.footer-list li,.footer-contact li{margin-bottom:10px;}
.footer-list a,.footer-contact li{
  font-size:14px;color:rgba(255,255,255,.62);transition:color var(--t);
}
.footer-list a:hover{color:#fff;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:22px 0 32px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--space-section:72px;}
  .container{padding:0 24px;}
  .main-nav,.nav-cta{display:none;}
  .nav-toggle{display:flex;}
  .split-list{gap:56px;}
  .split-row{gap:36px;}
  .num-block{padding:8px 24px;}
  .num-item{grid-template-columns:64px 1fr;gap:18px;}
  .num-item .num-meta{grid-column:2;border-left:0;padding-left:0;border-top:1px solid var(--c-line);padding-top:14px;}
  .metric-strip{grid-template-columns:repeat(2,1fr);}
  .metric:nth-child(2){border-right:0;}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--c-line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  :root{--space-section:56px;}
  .container{padding:0 16px;}
  .page-hero-inner{padding:44px 0 52px;}
  .page-hero h1{font-size:1.75rem;}
  .hero-stats{gap:26px;margin-top:30px;padding-top:20px;}
  .hero-stat{min-width:104px;}
  .split-row{grid-template-columns:1fr;gap:22px;}
  .split-row.reverse .split-media{order:0;}
  .split-list{gap:48px;}
  .num-item{grid-template-columns:1fr;gap:12px;padding:24px 0;}
  .num-item .num{font-size:1.6rem;}
  .num-item .num-meta{grid-column:1;}
  .num-block{padding:4px 18px;}
  .metric-strip{grid-template-columns:1fr;}
  .metric{border-right:0;border-bottom:1px solid var(--c-line);}
  .metric:last-child{border-bottom:0;}
  .cta-inner{padding:56px 0;flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --c-primary:#0E3B34;
  --c-primary-600:#14524A;
  --c-primary-50:rgba(14,59,52,.06);
  --c-accent:#C0562E;
  --c-accent-soft:#F3E4DB;
  --c-bg:#F5F2EC;
  --c-surface:#FFFFFF;
  --c-dark:#0B1512;
  --c-ink:#16201D;
  --c-ink-2:#4A5854;
  --c-ink-3:#8A948F;
  --c-line:#E3DED4;
  --c-line-2:#D8D2C6;
  --ok:#2F7A5A; --warn:#B8791F; --err:#B23A2F; --info:#2E6B8A;
  --r-card:16px; --r-sm:12px; --r-pill:999px; --r-field:10px;
  --sh-1:0 1px 2px rgba(11,21,18,.04),0 8px 24px -16px rgba(11,21,18,.18);
  --sh-2:0 12px 32px -14px rgba(11,21,18,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:.25s cubic-bezier(.2,.7,.3,1);
  --mono:"IBM Plex Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --sans:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--c-bg);color:var(--c-ink-2);
  font-family:var(--sans);font-size:16px;line-height:1.75;
  -webkit-font-smoothing:antialiased;text-rendering:optimizeLegibility;
}
body.is-locked{overflow:hidden}
h1,h2,h3,h4{margin:0;color:var(--c-ink);line-height:1.3;font-weight:700}
p{margin:0 0 1.1em}
ul,ol{margin:0;padding:0;list-style:none}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}
::selection{background:var(--c-accent-soft);color:var(--c-ink)}
.mono{font-family:var(--mono);font-variant-numeric:tabular-nums}

/* ---------- 容器 ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (max-width:1023px){.container{padding:0 24px}}
@media (max-width:767px){.container{padding:0 16px}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:120;background:var(--c-surface);
  border-bottom:1px solid var(--c-line);transition:background-color var(--t),border-color var(--t);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
  border-color:var(--c-line-2);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:17px;color:var(--c-ink);letter-spacing:-.01em;flex:0 0 auto}
.brand-mark{width:10px;height:10px;border-radius:3px;background:var(--c-accent);flex:0 0 auto}
.brand-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;padding:8px 14px;border-radius:var(--r-pill);
  font-size:15px;color:var(--c-ink-2);transition:background-color var(--t),color var(--t);
  white-space:nowrap;
}
.nav-link:hover{background:var(--c-accent-soft);color:var(--c-primary)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--c-primary);
}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-pill);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
  cursor:pointer;
}
.btn-primary{background:var(--c-primary);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--c-primary-600);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:rgba(14,59,52,.08)}
.btn-sm{padding:9px 16px;font-size:14px}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;cursor:not-allowed;transform:none}

/* 汉堡 */
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:var(--r-sm);
  align-items:center;justify-content:center;border:1px solid var(--c-line);
  transition:background-color var(--t),border-color var(--t);
}
.nav-toggle:hover{background:var(--c-accent-soft);border-color:var(--c-accent-soft)}
.nav-toggle span{position:relative;display:block;width:18px;height:2px;background:var(--c-ink);border-radius:2px}
.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}

/* 抽屉 */
.drawer{
  position:fixed;inset:0;z-index:200;background:var(--c-surface);
  display:flex;flex-direction:column;padding:20px 20px 32px;
  transform:translateX(100%);visibility:hidden;
  transition:transform .3s var(--ease),visibility .3s var(--ease);
  overflow-y:auto;
}
.drawer.is-open{transform:none;visibility:visible}
.drawer-top{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:28px}
.drawer-close{
  width:42px;height:42px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  font-size:20px;color:var(--c-ink);display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{background:var(--c-accent-soft);border-color:var(--c-accent-soft)}
.drawer-list{display:flex;flex-direction:column;gap:2px}
.drawer-list a{
  display:block;padding:15px 12px;border-radius:var(--r-sm);font-size:19px;font-weight:600;color:var(--c-ink);
  border-bottom:1px solid var(--c-line);transition:background-color var(--t),color var(--t);
}
.drawer-list a:hover,.drawer-list a.is-active{background:var(--c-accent-soft);color:var(--c-primary)}
.drawer-cta{margin-top:28px}
.drawer-cta .btn{width:100%}

@media (max-width:1023px){
  .main-nav{display:none}
  .nav-toggle{display:flex}
  .header-actions .btn-sm{display:none}
}

/* ---------- 页头 ---------- */
.page-head{
  padding:44px 0 52px;
  background:linear-gradient(180deg,#EFEBE3 0%,rgba(245,242,236,0) 100%);
  border-bottom:1px solid var(--c-line);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--c-ink-3);margin-bottom:22px}
.breadcrumb a{color:var(--c-ink-2);transition:color var(--t)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-line-2)}
.breadcrumb .current{color:var(--c-ink-3)}
.tag{
  display:inline-flex;align-items:center;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--c-accent-soft);color:var(--c-accent);
  font-size:12px;letter-spacing:.04em;font-weight:600;
}
.page-head h1{
  margin:16px 0 0;font-size:clamp(1.9rem,3.6vw,2.55rem);font-weight:800;letter-spacing:-.02em;max-width:880px;
}
.page-head .lead{margin-top:18px;max-width:760px;font-size:16.5px;color:var(--c-ink-2)}
.head-facts{display:flex;flex-wrap:wrap;gap:14px 40px;margin-top:30px}
.head-facts li{display:flex;align-items:baseline;gap:8px;font-size:13px;color:var(--c-ink-3)}
.head-facts li::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--c-accent);transform:translateY(-1px)}
.head-facts b{font-family:var(--mono);font-size:18px;color:var(--c-ink);font-weight:600}

@media (prefers-reduced-motion:no-preference){
  .page-head .container > *{animation:rise .55s var(--ease) both}
  .page-head .container > *:nth-child(1){animation-delay:.02s}
  .page-head .container > *:nth-child(2){animation-delay:.08s}
  .page-head .container > *:nth-child(3){animation-delay:.14s}
  .page-head .container > *:nth-child(4){animation-delay:.20s}
  .page-head .container > *:nth-child(5){animation-delay:.26s}
}
@keyframes rise{from{opacity:0;transform:translateY(12px)}to{opacity:1;transform:none}}

/* ---------- 主布局 ---------- */
main{display:block}
.section{padding:72px 0 0}
.section:last-of-type{padding-bottom:0}
.section-head{margin-bottom:32px}
.section-head h2{font-size:clamp(1.4rem,2.4vw,1.9rem);font-weight:700;letter-spacing:-.01em}
.section-head p{margin:12px 0 0;max-width:760px;color:var(--c-ink-2);font-size:15px}
.section-head .rule{height:1px;background:var(--c-line);margin-top:28px}

.layout{display:grid;grid-template-columns:236px minmax(0,1fr);gap:56px;align-items:start;padding-top:64px}

/* 侧栏目录 */
.side-toc{position:sticky;top:96px}
.side-toc h2{font-size:13px;letter-spacing:.08em;color:var(--c-ink-3);font-weight:600;margin-bottom:14px}
.side-toc ul{display:flex;flex-direction:column}
.side-toc a{
  display:block;padding:10px 0 10px 14px;border-left:2px solid var(--c-line);
  font-size:14.5px;color:var(--c-ink-2);transition:color var(--t),border-color var(--t),background-color var(--t);
}
.side-toc a:hover{color:var(--c-primary);border-color:var(--c-line-2)}
.side-toc a.is-current{
  color:var(--c-primary);font-weight:600;border-color:var(--c-primary);
  background:linear-gradient(90deg,var(--c-primary-50),rgba(14,59,52,0));
}
.side-note{
  margin-top:28px;padding:16px;border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:var(--c-surface);font-size:13px;color:var(--c-ink-3);line-height:1.7;
}

/* 分节长文 */
.doc-flow{min-width:0}
.doc-section{padding-bottom:40px;margin-bottom:40px;border-bottom:1px dashed var(--c-line);scroll-margin-top:96px}
.doc-section:last-child{border-bottom:0;margin-bottom:0;padding-bottom:0}
.doc-section h2{
  position:relative;padding-left:16px;font-size:clamp(1.25rem,2vw,1.55rem);margin-bottom:18px;
}
.doc-section h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:2px;background:var(--c-primary);
}
.doc-section h3{font-size:1.05rem;margin:26px 0 10px}
.doc-section p{font-size:16px;color:var(--c-ink-2)}
.point-list{margin:18px 0 6px;display:grid;gap:12px}
.point-list li{position:relative;padding-left:26px;font-size:15px;color:var(--c-ink-2)}
.point-list li::before{
  content:"";position:absolute;left:6px;top:.62em;width:8px;height:8px;border-radius:2px;
  background:var(--c-accent-soft);border:1.5px solid var(--c-accent);
}
.point-list li b{color:var(--c-ink);font-weight:600}
.callout{
  margin:24px 0;padding:18px 22px;border-left:3px solid var(--c-accent);
  background:var(--c-surface);border-radius:0 var(--r-sm) var(--r-sm) 0;
  font-size:15px;color:var(--c-ink-2);
}
.doc-figure{margin:26px 0 8px}
.doc-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);border:1px solid var(--c-line)}
.doc-figure figcaption{margin-top:10px;font-size:12px;color:var(--c-ink-3)}

/* 时间轴 */
.timeline-wrap{margin-top:8px}
.timeline{position:relative;padding-left:32px}
.timeline::before{content:"";position:absolute;left:7px;top:6px;bottom:6px;width:1px;background:var(--c-line)}
.timeline li{position:relative;padding:0 0 32px}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{
  content:"";position:absolute;left:-32px;top:6px;width:15px;height:15px;border-radius:50%;
  background:var(--c-surface);border:2px solid var(--c-accent);
}
.timeline li.is-key::before{background:var(--c-accent)}
.tl-date{font-family:var(--mono);font-size:13px;color:var(--c-accent);letter-spacing:.02em}
.tl-card{
  margin-top:10px;padding:20px 22px;background:var(--c-surface);border:1px solid var(--c-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.tl-card:hover{transform:translateY(-2px);border-color:var(--c-primary);box-shadow:var(--sh-2)}
.tl-card h3{font-size:1.05rem;margin-bottom:8px;transition:color var(--t)}
.tl-card:hover h3{color:var(--c-primary)}
.tl-card p{font-size:14.5px;line-height:1.7;margin:0}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.chip{
  display:inline-flex;align-items:center;padding:4px 11px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);background:var(--c-bg);
  font-size:12px;color:var(--c-ink-3);letter-spacing:.02em;
}
.chip-accent{background:var(--c-accent-soft);border-color:transparent;color:var(--c-accent);font-weight:600}

/* 数据条 */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  margin-top:64px;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);
}
.stat-strip .stat{padding:30px 24px;border-left:1px solid var(--c-line)}
.stat-strip .stat:first-child{border-left:0;padding-left:0}
.stat-num{font-family:var(--mono);font-size:clamp(1.6rem,2.8vw,2.1rem);font-weight:600;color:var(--c-ink);line-height:1.1}
.stat-label{margin-top:8px;font-size:13px;color:var(--c-ink-3)}

/* FAQ */
.faq{margin-top:32px;border-top:1px solid var(--c-line);max-width:860px}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  width:100%;min-height:56px;padding:14px 0;text-align:left;
  font-size:16px;font-weight:600;color:var(--c-ink);transition:color var(--t);
}
.faq-q:hover{color:var(--c-primary)}
.faq-q h3{font-size:16px;font-weight:600;margin:0}
.faq-mark{
  position:relative;flex:0 0 auto;width:28px;height:28px;border-radius:8px;
  border:1px solid var(--c-line);background:var(--c-surface);
  transition:transform var(--t),border-color var(--t),background-color var(--t);
}
.faq-mark::before,.faq-mark::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--c-primary);border-radius:1px;transform:translate(-50%,-50%);
}
.faq-mark::before{width:12px;height:1.5px}
.faq-mark::after{width:1.5px;height:12px}
.faq-item.is-open .faq-mark{transform:rotate(45deg);border-color:var(--c-accent);background:var(--c-accent-soft)}
.faq-item.is-open .faq-mark::before,.faq-item.is-open .faq-mark::after{background:var(--c-accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s var(--ease)}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{max-width:760px;padding:0 0 20px;font-size:15px;line-height:1.8;color:var(--c-ink-2)}

/* CTA */
.cta-band{background:var(--c-dark);color:rgba(255,255,255,.72);margin-top:80px;padding:64px 0}
.cta-band .cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-band h2{color:#fff;font-size:clamp(1.35rem,2.4vw,1.8rem);max-width:640px}
.cta-band p{margin:12px 0 0;font-size:14.5px;color:rgba(255,255,255,.6);max-width:560px}
.cta-band .btn-primary{background:var(--c-accent);color:#fff}
.cta-band .btn-primary:hover{background:#A9481F}

/* 页脚 */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.6);padding:72px 0 32px;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px}
.footer-brand .brand{color:#fff;margin-bottom:16px}
.footer-brand p{margin:0;font-size:14px;line-height:1.75;color:rgba(255,255,255,.6);max-width:320px}
.footer-title{font-size:13px;letter-spacing:.08em;color:rgba(255,255,255,.9);margin-bottom:16px;font-weight:600}
.footer-list,.footer-contact{display:grid;gap:10px;font-size:14px}
.footer-list a{color:rgba(255,255,255,.6);transition:color var(--t)}
.footer-list a:hover{color:#fff}
.footer-contact li{color:rgba(255,255,255,.6)}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .section{padding-top:56px}
  .layout{grid-template-columns:1fr;gap:32px;padding-top:48px}
  .side-toc{position:static;padding:20px;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card)}
  .side-toc ul{display:grid;grid-template-columns:repeat(2,minmax(0,1fr))}
  .side-toc a{border-left:0;border-bottom:2px solid var(--c-line);padding-left:0}
  .side-toc a.is-current{border-color:var(--c-primary);background:none}
  .side-note{display:none}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .stats-4,.stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat-strip .stat:nth-child(3){border-left:0;padding-left:0}
  .stat-strip .stat:nth-child(1),.stat-strip .stat:nth-child(2){border-bottom:1px solid var(--c-line)}
}
@media (max-width:767px){
  .page-head{padding:32px 0 40px}
  .layout{padding-top:36px}
  .side-toc ul{grid-template-columns:1fr}
  .section{padding-top:48px}
  .timeline{padding-left:24px}
  .timeline li::before{left:-24px}
  .stat-strip{grid-template-columns:1fr}
  .stat-strip .stat{border-left:0;padding:22px 0}
  .stat-strip .stat + .stat{border-top:1px solid var(--c-line)}
  .stat-strip .stat:nth-child(1),.stat-strip .stat:nth-child(2){border-bottom:0}
  .cta-band{padding:48px 0;margin-top:56px}
  .cta-band .cta-inner .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
}

/* roulang page: category4 */
:root{
  --c-primary:#0E3B34;
  --c-primary-600:#14524A;
  --c-accent:#C0562E;
  --c-accent-soft:#F3E4DB;
  --c-bg:#F5F2EC;
  --c-surface:#FFFFFF;
  --c-dark:#0B1512;
  --c-ink:#16201D;
  --c-ink-2:#4A5854;
  --c-ink-3:#8A948F;
  --c-line:#E3DED4;
  --c-success:#2F7A5A;
  --c-warn:#B8791F;
  --c-error:#B23A2F;
  --c-info:#2E6B8A;
  --r-card:16px;
  --r-sm:12px;
  --r-btn:999px;
  --r-field:10px;
  --shadow-1:0 1px 2px rgba(11,21,18,.04), 0 8px 24px -16px rgba(11,21,18,.18);
  --shadow-2:0 12px 32px -14px rgba(11,21,18,.26);
  --ease:cubic-bezier(.2,.7,.3,1);
  --t:.25s var(--ease);
  --section-y:96px;
  --font-sans:"HarmonyOS Sans SC","PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  --font-mono:"IBM Plex 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;
  background:var(--c-bg);
  color:var(--c-ink-2);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--section-y) 0}
.section--tight{padding:64px 0}
.mono{font-family:var(--font-mono);font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--c-line);
  transition:background-color var(--t),border-color var(--t),backdrop-filter var(--t);
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.82);
  backdrop-filter:blur(12px);
  border-bottom-color:#D5CDBF;
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:18px;color:var(--c-ink);letter-spacing:-.01em}
.brand-mark{width:12px;height:12px;border-radius:3px;background:var(--c-accent);flex:none}
.brand-text{white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px}
.nav-link{
  position:relative;
  padding:8px 14px;border-radius:var(--r-btn);
  font-size:15px;color:var(--c-ink-2);
  transition:background-color var(--t),color var(--t);
}
.nav-link:hover{background:var(--c-accent-soft);color:var(--c-primary)}
.nav-link.is-active{color:var(--c-primary);font-weight:600}
.nav-link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-2px;height:2px;
  background:var(--c-primary);border-radius:2px;
}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;
  padding:9px 20px;border-radius:var(--r-btn);
  background:var(--c-primary);color:#fff;font-size:14.5px;font-weight:600;
  transition:background-color var(--t),transform var(--t);
}
.nav-cta:hover{background:var(--c-primary-600);transform:translateY(-1px)}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-sm);cursor:pointer;
  transition:border-color var(--t),background-color var(--t);
}
.nav-toggle:hover{border-color:var(--c-primary)}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-ink);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-ink)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

.drawer{
  position:fixed;inset:0;z-index:120;background:rgba(11,21,18,.42);
  opacity:0;visibility:hidden;transition:opacity var(--t),visibility var(--t);
}
.drawer.is-open{opacity:1;visibility:visible}
.drawer-panel{
  position:absolute;top:0;left:0;right:0;background:#fff;
  padding:24px 24px 32px;border-radius:0 0 var(--r-card) var(--r-card);
  transform:translateY(-14px);transition:transform var(--t);
  max-height:100vh;overflow-y:auto;
}
.drawer.is-open .drawer-panel{transform:translateY(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--c-line);
  background:#fff;cursor:pointer;font-size:20px;line-height:1;color:var(--c-ink);
  transition:border-color var(--t),color var(--t);
}
.drawer-close:hover{border-color:var(--c-accent);color:var(--c-accent)}
.drawer-nav{display:flex;flex-direction:column;gap:4px}
.drawer-nav a{
  padding:14px 16px;border-radius:var(--r-sm);font-size:18px;font-weight:600;color:var(--c-ink);
  transition:background-color var(--t),color var(--t);
}
.drawer-nav a:hover{background:var(--c-accent-soft);color:var(--c-primary)}
.drawer-nav a.is-active{color:var(--c-primary);background:var(--c-accent-soft)}
.drawer-cta{
  margin-top:20px;display:flex;justify-content:center;
  padding:14px;border-radius:var(--r-btn);background:var(--c-primary);color:#fff;font-weight:600;
}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  background-image:linear-gradient(rgba(14,59,52,.88),rgba(14,59,52,.94)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  color:#fff;padding:72px 0 64px;
}
.page-hero .crumb{font-size:13px;color:rgba(255,255,255,.72);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.page-hero .crumb a{color:rgba(255,255,255,.88)}
.page-hero .crumb a:hover{color:#fff;text-decoration:underline}
.page-hero h1{
  color:#fff;font-size:clamp(1.8rem,3.6vw,2.7rem);line-height:1.2;letter-spacing:-.02em;
  margin:18px 0 14px;max-width:820px;font-weight:800;
}
.page-hero .lede{font-size:16px;line-height:1.8;color:rgba(255,255,255,.82);max-width:720px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags span{
  padding:6px 14px;border-radius:var(--r-btn);font-size:13px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.26);
  color:rgba(255,255,255,.92);
}
.hero-index{
  position:absolute;right:32px;bottom:34px;font-family:var(--font-mono);
  font-size:clamp(3rem,10vw,6rem);line-height:1;color:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.14);border-radius:var(--r-card);
  padding:6px 20px;letter-spacing:.04em;
}

/* ---------- 主体双列 ---------- */
.layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:40px;align-items:start}
.list-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-bottom:8px}
.list-head h2{font-size:clamp(1.35rem,2.2vw,1.75rem)}
.list-head .hint{font-size:13.5px;color:var(--c-ink-3)}
.entry-list{border-top:1px solid var(--c-line)}
.entry{
  display:grid;grid-template-columns:56px minmax(0,1fr) 108px;gap:18px;align-items:baseline;
  padding:22px 12px;border-bottom:1px solid var(--c-line);
  transition:background-color var(--t);
}
.entry:hover{background:var(--c-surface)}
.entry-num{font-family:var(--font-mono);font-size:14px;color:var(--c-accent);letter-spacing:.06em}
.entry h3{font-size:1.05rem;line-height:1.5;font-weight:600;margin-bottom:6px}
.entry h3 a{transition:color var(--t);background-image:linear-gradient(var(--c-accent),var(--c-accent));background-size:0% 1px;background-repeat:no-repeat;background-position:0 100%;transition:background-size var(--t),color var(--t)}
.entry h3 a:hover{color:var(--c-primary);background-size:100% 1px}
.entry p{font-size:14.5px;line-height:1.75;color:var(--c-ink-2)}
.entry time{font-family:var(--font-mono);font-size:12.5px;color:var(--c-ink-3);text-align:right}

/* ---------- 侧栏 ---------- */
.side-col{position:sticky;top:96px;display:grid;gap:20px}
.side-card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--shadow-1);
}
.side-title{font-size:14px;font-weight:700;color:var(--c-ink);letter-spacing:.02em;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title::before{content:"";width:3px;height:14px;border-radius:2px;background:var(--c-accent)}
.rec-item{display:grid;grid-template-columns:76px minmax(0,1fr);gap:12px;padding:12px 0;border-top:1px solid var(--c-line)}
.rec-item:first-of-type{border-top:0;padding-top:0}
.rec-thumb{width:76px;aspect-ratio:4/3;border-radius:var(--r-sm);overflow:hidden;background:var(--c-line)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t)}
.rec-item:hover .rec-thumb img{transform:scale(1.04)}
.rec-item h4{font-size:14px;line-height:1.55;font-weight:600;color:var(--c-ink)}
.rec-item:hover h4{color:var(--c-primary)}
.rec-item time{display:block;margin-top:6px;font-family:var(--font-mono);font-size:12px;color:var(--c-ink-3)}

.field{margin-bottom:14px}
.field label{display:block;font-size:13px;color:var(--c-ink-3);margin-bottom:6px}
.field input,.field textarea{
  width:100%;height:48px;padding:0 14px;background:#fff;
  border:1px solid var(--c-line);border-radius:var(--r-field);
  color:var(--c-ink);transition:border-color var(--t),box-shadow var(--t);
}
.field textarea{height:110px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#A9B2AD}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:0 0 0 2px rgba(14,59,52,.15);
}
.field.has-error input,.field.has-error textarea{border-color:var(--c-error)}
.field .err{display:none;margin-top:6px;font-size:12px;color:var(--c-error)}
.field.has-error .err{display:block}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 26px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background-color var(--t),color var(--t),border-color var(--t),transform var(--t),box-shadow var(--t);
}
.btn-primary{background:var(--c-primary);color:#fff}
.btn-primary:hover{background:var(--c-primary-600);transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:rgba(14,59,52,.4)}
.btn-ghost:hover{background:rgba(14,59,52,.08);border-color:var(--c-primary)}
.btn-block{width:100%}
.btn:disabled{opacity:.4;cursor:not-allowed}
.form-note{margin-top:12px;font-size:12.5px;color:var(--c-ink-3);line-height:1.65}
.form-status{
  display:none;margin-top:12px;padding:10px 14px;border-radius:var(--r-field);
  font-size:13px;background:rgba(47,122,90,.1);color:var(--c-success);border:1px solid rgba(47,122,90,.24);
}
.form-status.is-visible{display:block}

/* ---------- 查阅步骤 ---------- */
.steps{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:0;
  border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;background:var(--c-surface);
}
.step{padding:28px 24px;border-right:1px solid var(--c-line)}
.step:last-child{border-right:0}
.step-num{font-family:var(--font-mono);font-size:13px;color:var(--c-accent);letter-spacing:.08em}
.step h3{margin:12px 0 8px;font-size:1rem}
.step p{font-size:14px;line-height:1.75;color:var(--c-ink-2)}

/* ---------- 表单区块 ---------- */
.contact-wrap{
  display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:48px;align-items:start;
}
.contact-intro h2{font-size:clamp(1.4rem,2.4vw,1.9rem);margin-bottom:16px}
.contact-intro p{font-size:15px;line-height:1.85;color:var(--c-ink-2)}
.contact-points{margin-top:24px;display:grid;gap:12px}
.contact-points li{display:flex;gap:10px;font-size:14px;color:var(--c-ink-2)}
.contact-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);margin-top:9px;flex:none}
.contact-form{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--shadow-1);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}

/* ---------- CTA ---------- */
.cta-band{background:var(--c-dark);color:#fff;padding:72px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap}
.cta-band h2{color:#fff;font-size:clamp(1.4rem,2.6vw,2rem);max-width:640px}
.cta-band p{margin-top:12px;color:rgba(255,255,255,.66);font-size:15px;max-width:640px}
.cta-band .btn-primary{background:#fff;color:var(--c-dark)}
.cta-band .btn-primary:hover{background:var(--c-accent-soft);color:var(--c-primary)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark);color:rgba(255,255,255,.6);padding:72px 0 32px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.12)}
.site-footer .brand{color:#fff}
.site-footer .brand-text{color:#fff}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px}
.footer-title{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.02em}
.footer-list li,.footer-contact li{margin-bottom:10px;font-size:14px}
.footer-list a{color:rgba(255,255,255,.66);transition:color var(--t)}
.footer-list a:hover{color:#fff}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;padding-top:24px;font-size:13px;color:rgba(255,255,255,.6)}

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

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--section-y:72px}
  .container{padding:0 24px}
  .main-nav,.nav-cta{display:none}
  .nav-toggle{display:flex}
  .layout{grid-template-columns:1fr;gap:32px}
  .side-col{position:static}
  .steps{grid-template-columns:1fr 1fr}
  .step:nth-child(2){border-right:0}
  .step:nth-child(1),.step:nth-child(2){border-bottom:1px solid var(--c-line)}
  .contact-wrap{grid-template-columns:1fr;gap:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .hero-index{display:none}
}
@media (max-width:767px){
  :root{--section-y:56px}
  .container{padding:0 16px}
  .page-hero{padding:52px 0 48px}
  .page-hero h1{font-size:1.75rem}
  .entry{grid-template-columns:40px minmax(0,1fr);gap:14px;padding:18px 6px}
  .entry time{grid-column:2;text-align:left;margin-top:-4px}
  .entry-num{font-size:13px}
  .steps{grid-template-columns:1fr}
  .step{border-right:0;border-bottom:1px solid var(--c-line)}
  .step:last-child{border-bottom:0}
  .form-row{grid-template-columns:1fr}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-band .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .rec-item{grid-template-columns:64px minmax(0,1fr)}
  .rec-thumb{width:64px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
  .reveal{opacity:1;transform:none}
  html{scroll-behavior:auto}
}