/* roulang page: index */
/* ============================================================
   设计变量
   ============================================================ */
:root{
  --ink:#14171A;
  --ink-2:#3A3F42;
  --muted:#6E7478;
  --paper:#F7F5F1;
  --paper-2:#FFFFFF;
  --line:#E3DED6;
  --brand:#1E3A34;
  --brand-strong:#14261F;
  --accent:#C2542B;
  --sand:#D9C9A8;
  --ok:#2F6B4F;
  --warn:#B07A18;
  --err:#B23A2F;
  --sh-1:0 1px 2px rgba(20,23,26,.04), 0 8px 24px -12px rgba(20,23,26,.10);
  --sh-2:0 2px 4px rgba(20,23,26,.06), 0 18px 40px -18px rgba(20,23,26,.16);
  --r-btn:4px;
  --r-card:6px;
  --r-pill:999px;
  --container:1240px;
  --pad:24px;
  --sec:clamp(56px,7vw,104px);
  --ease:cubic-bezier(.22,.61,.36,1);
  --sans:-apple-system, "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  --serif:"Noto Serif SC", "Source Han Serif SC", Georgia, "Microsoft YaHei", serif;
}

/* ============================================================
   基础 reset
   ============================================================ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
input{font:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
h1,h2,h3,h4{font-weight:600;letter-spacing:-.01em;line-height:1.25;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px;}
::selection{background:rgba(30,58,52,.14);}

/* ============================================================
   容器与通用
   ============================================================ */
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 var(--pad);
}
.section{padding:var(--sec) 0;}
.section-head{max-width:780px;margin-bottom:clamp(28px,4vw,40px);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.1em;
  color:var(--muted);
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;border-radius:var(--r-pill);
  background:var(--accent);
  flex:none;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,36px);
  margin:14px 0 12px;
}
.section-head p{
  color:var(--ink-2);
  font-size:16px;
  line-height:1.85;
}
.hr-line{height:1px;background:var(--line);border:0;margin:0;}

/* ============================================================
   按钮 / 标签 / 徽标
   ============================================================ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  letter-spacing:.01em;
  white-space:nowrap;
  transition:background-color .24s var(--ease), color .24s var(--ease), border-color .24s var(--ease), transform .24s var(--ease), box-shadow .24s var(--ease);
}
.btn svg{transition:transform .24s var(--ease);}
.btn:hover{transform:translateY(-2px);}
.btn:active{transform:translateY(0);}
.btn:hover svg{transform:translateX(4px);}
.btn-primary{background:var(--brand);color:#F7F5F1;box-shadow:var(--sh-1);}
.btn-primary:hover{background:#172F29;box-shadow:var(--sh-2);}
.btn-outline{
  border:1px solid var(--brand);
  color:var(--brand);
  background:transparent;
}
.btn-outline:hover{background:var(--brand);color:#F7F5F1;}
.btn-light{background:#F7F5F1;color:var(--brand-strong);}
.btn-light:hover{background:#FFFFFF;}
.btn-ghost-light{
  border:1px solid rgba(247,245,241,.42);
  color:#F7F5F1;
  background:transparent;
}
.btn-ghost-light:hover{background:rgba(247,245,241,.12);border-color:rgba(247,245,241,.7);}

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:15px;
  font-weight:600;
  color:var(--brand);
  position:relative;
}
.link-arrow::after{
  content:"";
  position:absolute;
  left:0;bottom:-4px;
  width:0;height:2px;
  background:var(--accent);
  transition:width .24s var(--ease);
}
.link-arrow:hover::after{width:100%;}
.link-arrow svg{transition:transform .24s var(--ease);}
.link-arrow:hover svg{transform:translateX(4px);}

.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:3px 12px;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  font-size:12.5px;
  color:var(--muted);
  background:var(--paper-2);
  white-space:nowrap;
  transition:border-color .24s var(--ease), color .24s var(--ease);
}
.badge:hover{border-color:var(--brand);color:var(--brand);}
.badge-accent{color:var(--accent);border-color:rgba(194,84,43,.32);background:rgba(194,84,43,.05);}
.badge-accent::before{content:"";width:6px;height:6px;border-radius:var(--r-pill);background:var(--accent);flex:none;}

.num-serif{
  font-family:var(--serif);
  font-size:clamp(24px,2.4vw,34px);
  color:var(--muted);
  line-height:1;
  letter-spacing:.02em;
  transition:color .24s var(--ease);
}

/* ============================================================
   导航
   ============================================================ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(247,245,241,.92);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  border-bottom:1px solid transparent;
  transition:border-color .28s var(--ease), box-shadow .28s var(--ease);
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 6px 18px -14px rgba(20,23,26,.28);
}
.nav{
  display:flex;
  align-items:center;
  gap:26px;
  height:64px;
  transition:height .26s var(--ease);
}
.site-header.is-scrolled .nav{height:56px;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:700;
  letter-spacing:-.01em;
  color:var(--ink);
  flex:none;
}
.brand-mark{
  width:22px;height:22px;
  border-radius:5px;
  background:var(--brand);
  position:relative;
  flex:none;
  transition:transform .3s var(--ease);
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:6px;
  border:1.5px solid var(--sand);
  border-radius:2px;
}
.brand:hover .brand-mark{transform:rotate(6deg);}
.brand small{
  display:block;
  font-size:11px;
  font-weight:500;
  letter-spacing:.14em;
  color:var(--muted);
  line-height:1;
  margin-top:3px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:24px;
  margin-left:6px;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  transition:color .24s var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  background:var(--accent);
  transition:width .24s var(--ease);
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active{color:var(--ink);font-weight:600;}
.nav-links a.is-active::after{width:100%;}
.nav-right{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:12px;
  flex:none;
}
.nav-search{
  display:flex;
  align-items:center;
  overflow:hidden;
  width:0;
  transition:width .28s var(--ease);
}
.nav-search.is-open{width:260px;}
.nav-search input{
  width:100%;
  height:38px;
  padding:0 12px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:var(--paper-2);
  color:var(--ink);
  font-size:14px;
  outline:none;
  transition:border-color .24s var(--ease), box-shadow .24s var(--ease);
}
.nav-search input::placeholder{color:var(--muted);}
.nav-search input:focus{border-color:var(--brand);box-shadow:0 0 0 2px rgba(30,58,52,.14);}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:var(--r-btn);
  color:var(--ink-2);
  transition:background-color .24s var(--ease), color .24s var(--ease);
}
.icon-btn:hover{background:rgba(30,58,52,.07);color:var(--brand);}
.nav-toggle{display:none;}

/* 移动抽屉 */
.drawer{
  position:fixed;
  inset:0;
  z-index:120;
  background:var(--paper);
  transform:translateY(-102%);
  transition:transform .22s var(--ease);
  overflow-y:auto;
  padding:22px var(--pad) 40px;
}
.drawer.is-open{transform:translateY(0);}
.drawer-top{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-bottom:26px;
}
.drawer nav{display:flex;flex-direction:column;gap:4px;}
.drawer nav a{
  padding:14px 4px;
  font-size:17px;
  font-weight:500;
  color:var(--ink-2);
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.drawer nav a.is-active{color:var(--brand);font-weight:600;}
.drawer-actions{margin-top:26px;display:flex;flex-direction:column;gap:14px;}
.drawer-actions .btn{width:100%;}
.drawer-search{display:flex;gap:10px;margin-top:22px;}
.drawer-search input{
  flex:1;
  height:44px;
  padding:0 12px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:var(--paper-2);
  font-size:15px;
  outline:none;
}
.drawer-search input:focus{border-color:var(--brand);box-shadow:0 0 0 2px rgba(30,58,52,.14);}

/* ============================================================
   HERO 分屏
   ============================================================ */
.hero{padding:clamp(34px,5vw,68px) 0 clamp(40px,6vw,84px);}
.hero-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:clamp(28px,4vw,56px);
  align-items:center;
}
.hero-copy h1{
  font-family:var(--serif);
  font-size:clamp(34px,5.6vw,64px);
  font-weight:700;
  line-height:1.08;
  letter-spacing:-.02em;
  margin:18px 0 0;
}
.hero-sub{
  margin-top:20px;
  font-size:17px;
  line-height:1.85;
  color:var(--ink-2);
  max-width:30em;
}
.hero-actions{
  display:flex;
  align-items:center;
  gap:22px;
  flex-wrap:wrap;
  margin-top:32px;
}
.hero-stats{
  display:flex;
  gap:clamp(20px,3vw,44px);
  margin-top:44px;
  padding-top:26px;
  border-top:1px solid var(--line);
  flex-wrap:wrap;
}
.hero-stats li{display:flex;flex-direction:column;gap:2px;}
.hero-stats b{
  font-family:var(--serif);
  font-size:30px;
  font-weight:700;
  line-height:1;
  color:var(--brand);
}
.hero-stats span{font-size:13px;color:var(--muted);letter-spacing:.02em;}

.hero-visual{
  position:relative;
  margin:0;
  border:1px solid var(--sand);
  border-radius:var(--r-card);
  overflow:hidden;
  aspect-ratio:16/10;
  background:#EDE8E0;
  box-shadow:var(--sh-1);
}
.hero-visual img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .64s ease-out;
}
.hero-visual:hover img{transform:scale(1.03);}
.hero-tag{
  position:absolute;
  left:18px;bottom:18px;
  display:inline-flex;
  align-items:center;
  gap:10px;
  padding:8px 16px;
  border-radius:var(--r-pill);
  background:rgba(20,38,31,.72);
  color:#F7F5F1;
  font-size:13px;
  letter-spacing:.04em;
  -webkit-backdrop-filter:blur(4px);
  backdrop-filter:blur(4px);
}
.hero-tag b{font-family:var(--serif);font-size:15px;font-weight:700;color:var(--sand);}
.hero-visual-note{
  position:absolute;
  right:18px;bottom:18px;
  font-size:12.5px;
  color:rgba(247,245,241,.86);
  background:rgba(20,23,26,.42);
  padding:5px 12px;
  border-radius:var(--r-pill);
}

/* ============================================================
   数据概览
   ============================================================ */
.facts{
  background:var(--paper-2);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.facts-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:var(--line);
}
.fact{
  background:var(--paper-2);
  padding:34px 26px;
  transition:background-color .24s var(--ease);
}
.fact:hover{background:#FCFAF7;}
.fact b{
  display:block;
  font-family:var(--serif);
  font-size:34px;
  font-weight:700;
  line-height:1.1;
  color:var(--brand);
}
.fact h3{
  margin-top:10px;
  font-size:16px;
  font-weight:600;
}
.fact p{
  margin-top:8px;
  font-size:14px;
  line-height:1.75;
  color:var(--muted);
}

/* ============================================================
   封面带
   ============================================================ */
.covers{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.cover-card{
  display:flex;
  flex-direction:column;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:border-color .24s var(--ease), box-shadow .24s var(--ease), transform .24s var(--ease);
}
.cover-card:hover{
  border-color:rgba(30,58,52,.3);
  box-shadow:var(--sh-2);
  transform:translateY(-2px);
}
.cover-media{
  position:relative;
  aspect-ratio:4/3;
  overflow:hidden;
  background:#EDE8E0;
}
.cover-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .64s ease-out;
}
.cover-card:hover .cover-media img{transform:scale(1.03);}
.cover-media .cover-index{
  position:absolute;
  left:14px;top:14px;
  font-family:var(--serif);
  font-size:15px;
  font-weight:700;
  color:#F7F5F1;
  background:rgba(20,38,31,.72);
  border-radius:var(--r-pill);
  padding:3px 12px;
}
.cover-body{padding:22px 22px 24px;}
.cover-body h3{font-size:19px;}
.cover-body p{
  margin-top:10px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--ink-2);
}
.cover-body .badge{margin-top:16px;}

/* ============================================================
   编号目录
   ============================================================ */
.catalog{
  border-top:1px solid var(--line);
}
.catalog-row{
  display:grid;
  grid-template-columns:64px 1fr auto;
  align-items:center;
  gap:24px;
  padding:24px 16px;
  border-bottom:1px solid var(--line);
  transition:background-color .24s var(--ease);
}
.catalog-row:hover{background:var(--paper-2);}
.catalog-row:hover .num-serif{color:var(--accent);}
.catalog-row h3{
  font-size:18px;
  letter-spacing:0;
}
.catalog-row p{
  margin-top:6px;
  font-size:14.5px;
  color:var(--muted);
  line-height:1.75;
}
.catalog-arrow{
  color:var(--muted);
  transition:transform .24s var(--ease), color .24s var(--ease);
}
.catalog-row:hover .catalog-arrow{transform:translateX(6px);color:var(--accent);}
.catalog-foot{
  margin-top:26px;
  display:flex;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
}
.catalog-foot span{font-size:14px;color:var(--muted);}

/* ============================================================
   精选条目（左图右文两列）
   ============================================================ */
.feature-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:30px;
}
.feature-card{
  display:grid;
  grid-template-columns:184px 1fr;
  gap:22px;
  padding:20px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  transition:border-color .24s var(--ease), box-shadow .24s var(--ease), transform .24s var(--ease);
}
.feature-card:hover{
  border-color:rgba(30,58,52,.3);
  box-shadow:var(--sh-2);
  transform:translateY(-2px);
}
.feature-media{
  aspect-ratio:4/3;
  border-radius:var(--r-btn);
  overflow:hidden;
  border:1px solid var(--line);
  background:#EDE8E0;
}
.feature-media img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .64s ease-out;
}
.feature-card:hover .feature-media img{transform:scale(1.03);}
.feature-body{display:flex;flex-direction:column;min-width:0;}
.feature-body h3{
  margin-top:14px;
  font-size:19px;
  line-height:1.4;
}
.feature-body p{
  margin-top:10px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--ink-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.feature-meta{
  margin-top:auto;
  padding-top:16px;
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  color:var(--muted);
}
.feature-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--sand);}

/* ============================================================
   最新信息（CMS 区域）
   ============================================================ */
.latest{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.news-list{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:0 clamp(28px,4vw,56px);
  min-height:240px;
}
.news-item{border-bottom:1px solid var(--line);}
.news-link{
  display:block;
  padding:22px 4px;
  transition:background-color .24s var(--ease);
}
.news-link:hover{background:#FCFAF7;}
.news-meta{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:13px;
  color:var(--muted);
}
.news-link h3{
  margin-top:12px;
  font-size:17.5px;
  line-height:1.5;
  transition:color .24s var(--ease);
}
.news-link:hover h3{color:var(--brand);}
.news-link p{
  margin-top:8px;
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-more{
  display:inline-flex;
  align-items:center;
  gap:6px;
  margin-top:12px;
  font-size:13.5px;
  font-weight:600;
  color:var(--brand);
}
.empty-state{
  grid-column:1/-1;
  min-height:240px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:14px;
  border:1px dashed var(--line);
  border-radius:var(--r-card);
  background:#FCFAF7;
  padding:40px 24px;
  text-align:center;
}
.empty-state svg{color:var(--muted);}
.empty-state p{font-size:15px;color:var(--muted);}
.empty-state .link-arrow{font-size:14.5px;}

/* ============================================================
   相关推荐（轻量三列）
   ============================================================ */
.rec-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.rec-card{
  padding:24px 22px;
  background:var(--paper-2);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  display:flex;
  flex-direction:column;
  gap:12px;
  transition:border-color .24s var(--ease), box-shadow .24s var(--ease), transform .24s var(--ease);
}
.rec-card:hover{
  border-color:rgba(30,58,52,.3);
  box-shadow:var(--sh-1);
  transform:translateY(-2px);
}
.rec-card h3{font-size:17px;line-height:1.5;}
.rec-card p{font-size:14px;color:var(--muted);line-height:1.8;}
.rec-foot{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--muted);
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-wrap{max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:22px 4px;
  text-align:left;
  font-size:17px;
  font-weight:600;
  color:var(--ink);
  transition:color .24s var(--ease);
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  flex:none;
  width:22px;height:22px;
  position:relative;
  transition:transform .3s var(--ease);
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--accent);
  border-radius:2px;
}
.faq-icon::before{left:0;top:10px;width:22px;height:1.6px;}
.faq-icon::after{top:0;left:10px;width:1.6px;height:22px;transition:opacity .3s var(--ease);}
.faq-item.is-open .faq-icon{transform:rotate(90deg);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .34s var(--ease);
}
.faq-a-inner{
  padding:0 4px 24px;
  font-size:15px;
  line-height:1.8;
  color:var(--ink-2);
  max-width:64em;
}

/* ============================================================
   CTA 通栏
   ============================================================ */
.cta-band{background:var(--brand-strong);color:#F7F5F1;}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
  padding:clamp(40px,5vw,60px) 0;
}
.cta-inner h2{
  font-size:clamp(22px,2.4vw,30px);
  color:#F7F5F1;
}
.cta-inner p{
  margin-top:10px;
  font-size:14.5px;
  color:rgba(247,245,241,.72);
  max-width:52em;
}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============================================================
   页脚
   ============================================================ */
.site-footer{
  background:var(--brand-strong);
  color:rgba(247,245,241,.78);
  padding-top:clamp(48px,6vw,76px);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:44px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:700;
  color:#F7F5F1;
}
.footer-brand .brand-mark{background:#F7F5F1;}
.footer-brand .brand-mark::after{border-color:var(--brand-strong);}
.footer-brand:hover .brand-mark{transform:rotate(6deg);}
.footer-about{
  margin-top:16px;
  font-size:14px;
  line-height:1.85;
  color:rgba(247,245,241,.68);
  max-width:28em;
}
.footer-contact{
  margin-top:18px;
  display:flex;
  flex-direction:column;
  gap:8px;
  font-size:14px;
}
.footer-contact a{color:rgba(247,245,241,.82);transition:color .24s var(--ease);}
.footer-contact a:hover{color:var(--accent);}
.footer-col h3{
  font-size:14px;
  letter-spacing:.08em;
  color:rgba(247,245,241,.95);
  margin-bottom:16px;
}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a,.footer-col span{
  font-size:14px;
  color:rgba(247,245,241,.7);
  transition:color .24s var(--ease);
}
.footer-col a:hover{color:var(--accent);text-decoration:underline;}
.footer-bottom{
  border-top:1px solid rgba(217,201,168,.24);
  padding:20px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(247,245,241,.55);
}
.footer-bottom a{color:rgba(247,245,241,.68);}
.footer-bottom a:hover{color:var(--accent);}

/* ============================================================
   滚动进入动效
   ============================================================ */
.reveal{
  opacity:0;
  transform:translateY(14px);
  transition:opacity .45s var(--ease), transform .45s var(--ease);
}
.reveal.is-in{opacity:1;transform:none;}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1279px){
  .hero-grid{grid-template-columns:6fr 6fr;}
  .news-list{grid-template-columns:1fr;min-height:220px;}
}
@media (max-width:1023px){
  :root{--pad:20px;}
  .nav-links{display:none;}
  .nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero-visual{order:2;}
  .hero-copy{order:1;}
  .facts-grid{grid-template-columns:repeat(2,1fr);}
  .covers{grid-template-columns:repeat(2,1fr);}
  .feature-grid{grid-template-columns:1fr;}
  .rec-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  :root{--pad:18px;}
  body{font-size:16px;}
  .hero-copy h1{font-size:clamp(30px,8.6vw,42px);}
  .facts-grid{grid-template-columns:1fr;}
  .covers{grid-template-columns:1fr;}
  .feature-card{grid-template-columns:1fr;gap:16px;}
  .feature-media{aspect-ratio:16/10;}
  .rec-grid{grid-template-columns:1fr;}
  .catalog-row{grid-template-columns:44px 1fr;gap:16px;padding:20px 6px;}
  .catalog-arrow{display:none;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .hero-tag{left:12px;bottom:12px;padding:6px 12px;font-size:12px;}
  .hero-visual-note{display:none;}
}
@media (max-width:479px){
  .hero-actions{width:100%;}
  .hero-actions .btn{width:100%;}
  .hero-stats{gap:22px;}
  .hero-stats b{font-size:26px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  .reveal{opacity:1;transform:none;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --ink:#14171A;
  --ink-2:#3A3F42;
  --muted:#6E7478;
  --paper:#F7F5F1;
  --paper-2:#FFFFFF;
  --line:#E3DED6;
  --brand:#1E3A34;
  --brand-strong:#14261F;
  --accent:#C2542B;
  --sand:#D9C9A8;
  --ok:#2F6B4F;
  --warn:#B07A18;
  --err:#B23A2F;
  --sh-1:0 1px 2px rgba(20,23,26,.04), 0 8px 24px -12px rgba(20,23,26,.10);
  --sh-2:0 2px 4px rgba(20,23,26,.06), 0 18px 40px -18px rgba(20,23,26,.16);
  --r-btn:4px;
  --r-card:6px;
  --r-img:4px;
  --maxw:1240px;
  --font-sans:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family: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{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.25}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px}
.visually-hidden{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap}

/* ---------- 按钮与组件 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#F7F5F1;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-strong);transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:var(--brand);color:#F7F5F1;transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.6;cursor:not-allowed;transform:none}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:15px;
  border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease;
}
.link-arrow::after{content:"→";transition:transform .24s cubic-bezier(.22,.61,.36,1)}
.link-arrow:hover{color:var(--accent);border-bottom-color:var(--accent)}
.link-arrow:hover::after{transform:translateX(4px)}

.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;border-radius:999px;border:1px solid var(--line);
  font-size:12.5px;color:var(--muted);background:var(--paper-2);
  transition:border-color .2s ease,color .2s ease;
}
.badge:hover{border-color:var(--brand);color:var(--brand)}
.badge-dot::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--accent);display:inline-block}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,241,.92);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  border-bottom:1px solid transparent;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 10px 30px -26px rgba(20,23,26,.6)}
.header-inner{display:flex;align-items:center;gap:28px;height:64px;transition:height .24s ease}
.site-header.is-scrolled .header-inner{height:56px}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;letter-spacing:-.01em;color:var(--ink)}
.brand-mark{
  width:14px;height:14px;border-radius:3px;background:var(--brand);
  position:relative;flex:0 0 auto;
}
.brand-mark::after{content:"";position:absolute;right:-4px;bottom:-4px;width:8px;height:8px;border-radius:2px;background:var(--accent)}
.header-panel{display:flex;align-items:center;gap:28px;flex:1;min-width:0}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .24s cubic-bezier(.22,.61,.36,1);
}
.nav-links a:hover{color:var(--ink)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--ink);font-weight:600}
.nav-links a.is-active::after{transform:scaleX(1)}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.search-btn{
  width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:var(--paper-2);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:border-color .2s ease,color .2s ease;
}
.search-btn:hover{border-color:var(--brand);color:var(--brand)}
.header-search{display:none;align-items:center;gap:8px}
.site-header.is-search .header-search{display:flex}
.header-search input{
  width:260px;height:44px;padding:0 14px;border:1px solid var(--line);
  border-radius:var(--r-btn);background:var(--paper-2);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.header-search input:focus{border-color:var(--brand);outline:none;box-shadow:0 0 0 2px rgba(30,58,52,.16)}
.panel-close{display:none}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--paper-2);align-items:center;justify-content:center;cursor:pointer;
  flex-direction:column;gap:5px;
}
.nav-toggle i{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:var(--paper)}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:18px 0;font-size:14px;color:var(--muted);
}
.breadcrumb a{color:var(--muted);transition:color .2s ease}
.breadcrumb a:hover{color:var(--ink)}
.breadcrumb .sep{color:var(--sand)}
.breadcrumb .current{
  color:var(--ink-2);max-width:44ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- 文章头部 ---------- */
.article-head{padding:44px 0 26px;border-bottom:1px solid var(--line);background:var(--paper)}
.article-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--accent);
  font-weight:600;margin-bottom:14px;
}
.article-head .eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);display:inline-block}
.article-head h1{
  font-size:clamp(28px,4vw,46px);font-weight:700;line-height:1.18;
  letter-spacing:-.02em;margin:0 0 18px;max-width:22ch;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;font-size:13.5px;color:var(--muted)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:7px}
.article-meta .meta-item::before{content:"";width:4px;height:4px;border-radius:999px;background:var(--sand)}

/* ---------- 布局 ---------- */
.article-wrap{padding:clamp(36px,5vw,64px) 0 clamp(48px,6vw,88px)}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:56px;align-items:start}
.article-main{max-width:780px}
.article-body{font-size:17px;line-height:1.9;color:var(--ink-2);word-wrap:break-word;overflow-wrap:break-word}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  position:relative;font-size:clamp(20px,2vw,24px);color:var(--ink);
  margin:2.2em 0 .85em;padding-left:16px;
}
.article-body h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:3px;background:var(--accent);border-radius:2px}
.article-body h3{font-size:19px;color:var(--ink);margin:1.8em 0 .6em}
.article-body h4{font-size:17px;color:var(--ink);margin:1.5em 0 .5em}
.article-body p{margin:0 0 1em}
.article-body ul{margin:0 0 1.2em}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:.5em}
.article-body ul li::before{content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;background:var(--accent);border-radius:1px}
.article-body ol{list-style:decimal;padding-left:22px;margin:0 0 1.2em}
.article-body ol li{margin-bottom:.5em}
.article-body blockquote{
  margin:1.6em 0;padding:16px 22px;background:var(--paper-2);
  border-left:3px solid var(--accent);border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--ink-2);font-size:16.5px;
}
.article-body figure{margin:1.7em 0}
.article-body img{border-radius:var(--r-img);border:1px solid var(--line);width:100%;height:auto}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.6em 0}
.article-body th,.article-body td{border-bottom:1px solid var(--line);padding:10px 12px;text-align:left}
.article-body thead th{background:var(--paper);color:var(--ink);font-weight:600}
.article-body tbody tr:nth-child(even){background:rgba(217,201,168,.16)}
.article-body a{color:var(--brand);border-bottom:1px solid rgba(194,84,43,.45);transition:color .2s ease,border-color .2s ease}
.article-body a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.article-body strong{color:var(--ink)}

.empty-state{
  padding:56px 28px;border:1px dashed var(--line);border-radius:var(--r-card);
  background:var(--paper-2);text-align:center;
}
.empty-state svg{width:34px;height:34px;stroke:var(--muted);fill:none;stroke-width:1.4;margin:0 auto 14px}
.empty-state p{color:var(--ink-2);margin:0 0 14px;font-size:16px}

/* ---------- 文末 ---------- */
.article-foot{margin-top:44px;padding-top:26px;border-top:1px solid var(--line)}
.foot-label{font-size:13px;color:var(--muted);margin:0 0 12px}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.tag-list a{
  padding:6px 14px;border-radius:999px;border:1px solid var(--line);
  font-size:13px;color:var(--muted);background:var(--paper-2);
  transition:border-color .2s ease,color .2s ease,background-color .2s ease;
}
.tag-list a:hover{border-color:var(--brand);color:var(--brand)}
.back-links{display:flex;flex-wrap:wrap;gap:26px}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:20px;position:sticky;top:88px}
.side-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 20px 22px;box-shadow:var(--sh-1);
}
.side-card h3{
  font-size:14px;letter-spacing:.04em;color:var(--muted);font-weight:600;
  margin:0 0 14px;padding-bottom:12px;border-bottom:1px solid var(--line);
}
.side-card.is-hidden{display:none}
.toc-list a{
  display:block;font-size:14px;color:var(--ink-2);padding:7px 0 7px 12px;
  border-left:2px solid transparent;transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.toc-list a:hover{color:var(--ink);background:var(--paper)}
.toc-list a.is-current{color:var(--accent);border-left-color:var(--accent);font-weight:600}
.hot-list li + li{border-top:1px solid var(--line)}
.hot-list a{display:flex;gap:12px;padding:12px 0;font-size:14.5px;color:var(--ink-2);transition:color .2s ease}
.hot-list a:hover{color:var(--brand)}
.hot-list .num{font-family:var(--font-serif);font-size:16px;color:var(--sand);min-width:22px;transition:color .2s ease}
.hot-list a:hover .num{color:var(--accent)}
.side-cta{background:var(--brand-strong);border-color:var(--brand-strong);color:#F7F5F1}
.side-cta h3{color:rgba(247,245,241,.72);border-bottom-color:rgba(255,255,255,.14)}
.side-cta p{font-size:14px;color:rgba(247,245,241,.82);margin:0 0 16px;line-height:1.8}
.side-cta .btn-primary{background:#F7F5F1;color:var(--brand-strong);width:100%}
.side-cta .btn-primary:hover{background:var(--sand)}

/* ---------- 相关推荐 ---------- */
.related{padding:0 0 clamp(56px,7vw,96px)}
.section-head{margin-bottom:32px}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--accent);margin-bottom:10px}
.section-head .eyebrow::before{content:"";width:22px;height:1px;background:var(--accent)}
.section-head h2{font-size:clamp(22px,2.4vw,30px);letter-spacing:-.01em}
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.related-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  transition:border-color .24s ease,box-shadow .24s ease,transform .24s ease;
}
.related-card:hover{border-color:rgba(30,58,52,.35);box-shadow:var(--sh-2);transform:translateY(-2px)}
.related-card .thumb{overflow:hidden;aspect-ratio:16/10;border-bottom:1px solid var(--line)}
.related-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .64s ease-out}
.related-card:hover .thumb img{transform:scale(1.03)}
.related-card .body{padding:18px 20px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-card h3{font-size:17px;line-height:1.5}
.related-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.7}
.related-card .meta{margin-top:auto;font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px}

/* ---------- 通栏 CTA ---------- */
.cta-band{
  position:relative;background:var(--brand-strong);color:#F7F5F1;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.16;filter:grayscale(.3);
}
.cta-band .container{position:relative;z-index:1;padding-top:clamp(40px,5vw,60px);padding-bottom:clamp(40px,5vw,60px)}
.cta-row{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px}
.cta-row h2{font-size:clamp(20px,2.2vw,26px);margin-bottom:8px}
.cta-row p{margin:0;font-size:14.5px;color:rgba(247,245,241,.78);max-width:56ch}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.cta-band .btn-primary{background:#F7F5F1;color:var(--brand-strong)}
.cta-band .btn-primary:hover{background:var(--sand)}
.cta-band .btn-ghost{border-color:rgba(247,245,241,.5);color:#F7F5F1}
.cta-band .btn-ghost:hover{background:#F7F5F1;color:var(--brand-strong);border-color:#F7F5F1}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-strong);color:rgba(247,245,241,.86);padding:clamp(48px,6vw,72px) 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:44px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#F7F5F1;margin-bottom:16px}
.footer-brand .brand-mark{background:#F7F5F1}
.footer-brand .brand-mark::after{background:var(--accent)}
.footer-about{font-size:14px;line-height:1.85;color:rgba(247,245,241,.72);margin:0 0 18px;max-width:34ch}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:rgba(247,245,241,.72)}
.footer-contact a{color:#F7F5F1;border-bottom:1px solid rgba(255,255,255,.24);align-self:flex-start;transition:color .2s ease,border-color .2s ease}
.footer-contact a:hover{color:var(--accent);border-bottom-color:var(--accent)}
.footer-col h3{font-size:14px;color:#F7F5F1;letter-spacing:.04em;margin:0 0 16px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.14)}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a,.footer-col span{font-size:14px;color:rgba(247,245,241,.74);transition:color .2s ease;line-height:1.6}
.footer-col a:hover{color:var(--accent);text-decoration:underline}
.footer-bottom{
  border-top:1px solid rgba(217,201,168,.28);
  padding:18px 0 24px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  font-size:13px;color:rgba(247,245,241,.62);
}
.footer-bottom a{color:rgba(247,245,241,.82);transition:color .2s ease}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- 动效 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .45s cubic-bezier(.22,.61,.36,1),transform .45s cubic-bezier(.22,.61,.36,1)}
.reveal.is-in{opacity:1;transform:translateY(0)}
@media (prefers-reduced-motion:reduce){
  .reveal{opacity:1;transform:none;transition:none}
  html{scroll-behavior:auto}
  *{transition-duration:.001ms !important;animation-duration:.001ms !important}
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 270px;gap:40px}
}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .header-panel{
    position:fixed;inset:0;z-index:90;
    display:flex;flex-direction:column;align-items:stretch;gap:22px;
    padding:88px 24px 40px;background:var(--paper);
    transform:translateY(-100%);transition:transform .22s cubic-bezier(.22,.61,.36,1);
    overflow-y:auto;
  }
  .site-header.is-open .header-panel{transform:translateY(0)}
  .nav-links{flex-direction:column;align-items:stretch;gap:0}
  .nav-links a{font-size:17px;padding:14px 0;border-bottom:1px solid var(--line);width:100%}
  .nav-links a::after{display:none}
  .nav-links a.is-active{color:var(--accent)}
  .header-actions{margin-left:0;flex-direction:column;align-items:stretch;gap:14px}
  .search-btn{display:none}
  .header-search{display:flex}
  .header-search input{width:100%}
  .header-actions .btn{width:100%}
  .panel-close{
    display:inline-flex;position:absolute;top:14px;right:20px;width:44px;height:44px;
    align-items:center;justify-content:center;border:1px solid var(--line);
    border-radius:var(--r-btn);background:var(--paper-2);cursor:pointer;font-size:20px;line-height:1;
  }
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px}
  .side-col{position:static}
  .side-col .side-card:not(.side-cta){display:none}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 18px}
  .article-head{padding:30px 0 22px}
  .article-head h1{max-width:none;font-size:clamp(24px,6.4vw,32px)}
  .article-body{font-size:16.5px;line-height:1.85}
  .related-grid{grid-template-columns:1fr}
  .cta-row{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
}
@media (max-width:480px){
  .brand{font-size:17px}
  .breadcrumb .current{max-width:24ch}
  .back-links{flex-direction:column;gap:14px}
  .article-meta{gap:8px 14px}
}

/* roulang page: category1 */
:root{
  --ink:#14171A;
  --ink-2:#3A3F42;
  --muted:#6E7478;
  --paper:#F7F5F1;
  --paper-2:#FFFFFF;
  --line:#E3DED6;
  --brand:#1E3A34;
  --brand-strong:#14261F;
  --brand-soft:#EAF0EC;
  --accent:#C2542B;
  --sand:#D9C9A8;
  --ok:#2F6B4F;
  --warn:#B07A18;
  --err:#B23A2F;
  --sh-1:0 1px 2px rgba(20,23,26,.04), 0 8px 24px -12px rgba(20,23,26,.10);
  --sh-2:0 2px 4px rgba(20,23,26,.06), 0 18px 40px -18px rgba(20,23,26,.16);
  --r-btn:4px;
  --r-card:10px;
  --r-img:4px;
  --r-pill:999px;
  --gap:24px;
  --sans:-apple-system, BlinkMacSystemFont, "PingFang SC", "HarmonyOS Sans SC", "Noto Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  --serif:"Noto Serif SC", "Source Han Serif SC", "Songti SC", serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-2);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;line-height:1.25;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:clamp(56px,7vw,104px) 0;}
.section-head{max-width:760px;margin-bottom:clamp(28px,3.6vw,40px);}
.section-head h2{font-size:clamp(24px,2.6vw,36px);letter-spacing:-.01em;}
.section-head p{margin-top:14px;font-size:16.5px;color:var(--ink-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--muted);
  text-transform:none;margin-bottom:14px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--accent);display:inline-block;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:70;
  background:rgba(247,245,241,.92);
  backdrop-filter:blur(6px);
  border-bottom:1px solid transparent;
  transition:border-color .2s ease, background .2s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);}
.header-inner{
  display:grid;grid-template-columns:repeat(12,1fr);
  gap:var(--gap);align-items:center;
  height:64px;transition:height .2s ease;
}
.site-header.is-scrolled .header-inner{height:56px;}
.header-left{grid-column:span 7;display:flex;align-items:center;gap:30px;min-width:0;}
.header-right{grid-column:span 5;display:flex;align-items:center;justify-content:flex-end;gap:12px;}

.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:24px;height:24px;border-radius:7px;background:var(--brand);
  position:relative;display:inline-block;
}
.brand-mark::after{
  content:"";position:absolute;right:4px;bottom:4px;
  width:7px;height:7px;border-radius:50%;background:var(--accent);
}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:-.01em;}

.nav-links{display:flex;align-items:center;gap:26px;}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);
  padding:6px 0;transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);transition:width .24s cubic-bezier(.22,.61,.36,1);
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active{color:var(--ink);font-weight:600;}
.nav-links a.is-active::after{width:100%;}

.icon-btn{
  width:40px;height:40px;border-radius:var(--r-btn);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);background:var(--paper-2);color:var(--ink-2);
  transition:border-color .2s ease,color .2s ease,transform .2s ease;
}
.icon-btn:hover{border-color:var(--brand);color:var(--brand);}
.icon-btn svg{width:17px;height:17px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;}

.search-wrap{position:relative;display:flex;align-items:center;}
.search-form{
  width:0;opacity:0;overflow:hidden;
  transition:width .26s ease,opacity .2s ease;
}
.search-form.is-open{width:260px;opacity:1;}
.search-form input{
  width:100%;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--paper-2);padding:0 14px;font-size:14.5px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form input::placeholder{color:var(--muted);}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(30,58,52,.14);}

.hamburger{display:none;}
.hamburger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;margin:3px 0;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;letter-spacing:.01em;border:1px solid transparent;
  cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn .arrow{transition:transform .2s ease;font-size:15px;line-height:1;}
.btn:hover .arrow{transform:translateX(4px);}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--brand);color:#F7F5F1;}
.btn-primary:hover{background:#19312C;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent;}
.btn-ghost:hover{background:var(--brand);color:#F7F5F1;transform:translateY(-2px);}
.btn-light{background:#F7F5F1;color:var(--brand-strong);}
.btn-light:hover{background:#FFFFFF;transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-outline-light{border-color:rgba(247,245,241,.5);color:#F7F5F1;background:transparent;}
.btn-outline-light:hover{border-color:#F7F5F1;background:rgba(247,245,241,.10);transform:translateY(-2px);}
.btn[disabled]{opacity:.6;cursor:not-allowed;transform:none;}

.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand);
  position:relative;padding-bottom:2px;
}
.link-arrow::before{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent);transition:width .24s cubic-bezier(.22,.61,.36,1);
}
.link-arrow:hover::before{width:calc(100% - 20px);}
.link-arrow .arrow{transition:transform .2s ease;}
.link-arrow:hover .arrow{transform:translateX(4px);}

/* ---------- drawer ---------- */
.drawer{
  position:fixed;inset:0;z-index:90;background:var(--paper);
  transform:translateY(100%);transition:transform .22s ease;
  display:flex;flex-direction:column;overflow-y:auto;
}
.drawer.is-open{transform:translateY(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 18px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;color:var(--ink-2);
}
.drawer-body{padding:20px 18px 40px;display:flex;flex-direction:column;gap:6px;}
.drawer-body a{
  padding:14px 4px;font-size:16.5px;font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;
}
.drawer-body a.is-active{color:var(--brand);font-weight:700;}
.drawer-body a span{color:var(--muted);font-size:14px;}
.drawer-cta{margin-top:18px;display:flex;flex-direction:column;gap:12px;}

/* ---------- hero ---------- */
.cat-hero{position:relative;overflow:hidden;background:var(--brand-strong);}
.cat-hero-bg{position:absolute;inset:0;}
.cat-hero-bg img{width:100%;height:100%;object-fit:cover;}
.cat-hero-shade{
  position:absolute;inset:0;
  background:linear-gradient(180deg, rgba(20,23,26,.34) 0%, rgba(20,23,26,.58) 62%, rgba(20,23,26,.74) 100%);
}
.cat-hero-inner{position:relative;z-index:2;padding-top:clamp(72px,12vw,148px);padding-bottom:clamp(40px,6vw,68px);max-width:940px;}
.cat-hero .eyebrow{color:rgba(247,245,241,.82);}
.cat-hero h1{
  color:#FFFFFF;font-size:clamp(34px,5.6vw,62px);font-weight:700;
  line-height:1.08;letter-spacing:-.02em;font-family:var(--serif);
}
.cat-hero-sub{
  margin-top:20px;font-size:clamp(16px,1.6vw,19px);
  color:rgba(247,245,241,.86);max-width:640px;line-height:1.75;
}
.hero-actions{display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:32px;}
.hero-actions .link-arrow{color:#F7F5F1;}
.hero-actions .link-arrow::before{background:var(--sand);}
.hero-meta{
  display:flex;gap:32px;flex-wrap:wrap;margin-top:40px;
  padding-top:24px;border-top:1px solid rgba(247,245,241,.22);
}
.hero-meta div{min-width:104px;}
.hero-meta b{
  display:block;font-family:var(--serif);font-size:clamp(24px,2.6vw,34px);
  color:#FFFFFF;font-weight:600;line-height:1.1;
}
.hero-meta span{font-size:13px;color:rgba(247,245,241,.7);}

/* ---------- breadcrumb ---------- */
.crumbs{padding:20px 0;font-size:14px;color:var(--muted);}
.crumbs ol{display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.crumbs li{display:flex;align-items:center;gap:10px;}
.crumbs li::after{content:"/";color:var(--line);}
.crumbs li:last-child::after{display:none;}
.crumbs a{color:var(--muted);transition:color .2s ease;}
.crumbs a:hover{color:var(--ink);}
.crumbs [aria-current="page"]{color:var(--ink);font-weight:600;}

/* ---------- split layout ---------- */
.split{display:grid;grid-template-columns:3fr 9fr;gap:clamp(24px,3vw,44px);align-items:start;}
.toc{
  position:sticky;top:88px;
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--sh-1);
}
.toc h2{font-size:15px;letter-spacing:.02em;margin-bottom:14px;}
.toc ol{display:flex;flex-direction:column;}
.toc li{border-top:1px solid var(--line);}
.toc li:first-child{border-top:0;}
.toc a{
  display:flex;gap:10px;align-items:baseline;
  padding:11px 4px;font-size:14.5px;color:var(--ink-2);
  transition:color .2s ease,background .2s ease;
}
.toc a em{font-family:var(--serif);font-style:normal;color:var(--muted);font-size:13px;}
.toc a:hover{color:var(--brand);background:var(--paper);}
.toc-note{
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);line-height:1.7;
}

/* ---------- step list ---------- */
.step-list{border-top:1px solid var(--line);}
.step{
  display:grid;grid-template-columns:66px 1fr;gap:22px;
  padding:26px 18px;border-bottom:1px solid var(--line);border-radius:var(--r-card);
  transition:background .22s ease;
  scroll-margin-top:96px;
}
.step:hover{background:var(--paper-2);}
.step-num{
  font-family:var(--serif);font-size:32px;line-height:1;color:var(--muted);
  transition:color .22s ease;
}
.step:hover .step-num{color:var(--accent);}
.step h3{font-size:19px;margin-bottom:10px;line-height:1.4;}
.step p{font-size:15.5px;line-height:1.85;color:var(--ink-2);}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid var(--line);border-radius:var(--r-pill);
  padding:4px 12px;font-size:12.5px;color:var(--muted);background:var(--paper-2);
  transition:border-color .2s ease,color .2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- cards ---------- */
.card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:border-color .24s ease,box-shadow .24s ease,transform .24s ease;
  display:flex;flex-direction:column;
}
.card:hover{border-color:rgba(30,58,52,.32);box-shadow:var(--sh-2);transform:translateY(-3px);}
.thumb{position:relative;overflow:hidden;border-bottom:1px solid var(--line);aspect-ratio:4/3;background:var(--paper);}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .64s ease-out;}
.card:hover .thumb img{transform:scale(1.03);}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:18px;line-height:1.45;}
.card-body p{font-size:15px;color:var(--ink-2);line-height:1.8;margin:0;}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;color:var(--brand);background:var(--brand-soft);
  border-radius:var(--r-pill);padding:4px 12px;
}
.badge .dot{width:5px;height:5px;border-radius:50%;background:var(--accent);}

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

/* ---------- flow ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.flow-item{position:relative;padding-top:26px;}
.flow-item::before{
  content:"";position:absolute;left:0;top:9px;width:100%;height:1px;background:var(--line);
}
.flow-item:last-child::before{background:linear-gradient(90deg,var(--line),transparent);}
.flow-dot{
  position:absolute;left:0;top:0;width:19px;height:19px;border-radius:50%;
  background:var(--paper);border:1px solid var(--sand);
  display:flex;align-items:center;justify-content:center;
}
.flow-dot::after{content:"";width:7px;height:7px;border-radius:50%;background:var(--brand);}
.flow-item h3{font-size:17px;margin-bottom:8px;}
.flow-item p{font-size:14.5px;color:var(--ink-2);}
.flow-item .flow-k{
  font-family:var(--serif);font-size:13px;color:var(--accent);
  display:block;margin-bottom:8px;letter-spacing:.04em;
}

/* ---------- cta ---------- */
.cta-bar{
  background:var(--brand-strong);color:#F2EFE9;border-radius:14px;
  padding:clamp(28px,4vw,44px) clamp(24px,4vw,48px);
  display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap;
}
.cta-bar h2{color:#FFFFFF;font-size:clamp(22px,2.4vw,30px);max-width:520px;}
.cta-bar p{color:rgba(242,239,233,.78);font-size:14.5px;margin-top:10px;max-width:540px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line);margin-top:8px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 0;text-align:left;font-size:17px;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand);}
.faq-icon{
  position:relative;flex:0 0 auto;width:18px;height:18px;
  transition:transform .3s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--muted);border-radius:2px;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px;}
.faq-icon::after{left:8px;top:0;width:2px;height:18px;transition:opacity .3s ease;}
.faq-item.is-open .faq-icon{transform:rotate(90deg);}
.faq-item.is-open .faq-icon::after{opacity:0;}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.faq-a p{
  max-width:780px;padding:0 0 22px;font-size:15px;line-height:1.85;color:var(--ink-2);
}
.faq-item.is-open .faq-q{color:var(--brand);}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-strong);color:rgba(242,239,233,.82);margin-top:clamp(56px,7vw,104px);}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;
  padding:clamp(44px,6vw,72px) 0 40px;
}
.footer-brand{
  display:inline-flex;align-items:center;gap:10px;
  font-size:18px;font-weight:700;color:#FFFFFF;margin-bottom:16px;
}
.footer-brand .brand-mark{background:var(--sand);}
.footer-brand .brand-mark::after{background:var(--brand-strong);}
.footer-about{font-size:14px;line-height:1.85;color:rgba(242,239,233,.7);max-width:340px;}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:rgba(242,239,233,.68);}
.footer-contact a{color:var(--sand);transition:color .2s ease;}
.footer-contact a:hover{color:var(--accent);}
.footer-col h3{
  font-size:14px;color:#FFFFFF;letter-spacing:.04em;margin-bottom:16px;font-weight:600;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a,.footer-col span{font-size:14px;color:rgba(242,239,233,.72);transition:color .2s ease;}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:4px;}
.footer-bottom{
  border-top:1px solid rgba(217,201,168,.24);
  padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:13px;color:rgba(242,239,233,.6);
}
.footer-bottom a{color:rgba(242,239,233,.75);}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .45s cubic-bezier(.22,.61,.36,1),transform .45s cubic-bezier(.22,.61,.36,1);}
.reveal.is-in{opacity:1;transform:none;}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .header-left{grid-column:span 8;}
  .header-right{grid-column:span 4;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .header-left{grid-column:span 6;}
  .header-right{grid-column:span 6;}
  .hamburger{display:inline-flex;flex-direction:column;align-items:center;justify-content:center;}
  .search-wrap{display:none;}
  .site-header .btn-primary{display:none;}
  .split{grid-template-columns:1fr;}
  .toc{position:static;}
  .flow{grid-template-columns:repeat(2,1fr);gap:28px 24px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .grid-3{grid-template-columns:1fr;}
  .step{grid-template-columns:44px 1fr;gap:14px;padding:22px 12px;}
  .step-num{font-size:26px;}
  .flow{grid-template-columns:1fr;gap:26px;}
  .flow-item::before{display:none;}
  .cta-bar{flex-direction:column;align-items:flex-start;}
  .cat-hero-inner{padding-top:clamp(56px,14vw,96px);}
  .hero-meta{gap:22px;}
  .hero-actions .btn{flex:1 1 auto;}
}
@media (max-width:520px){
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .cat-hero h1{font-size:30px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{width:100%;}
  .hero-actions .link-arrow{width:100%;justify-content:flex-start;}
}
@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  .reveal{opacity:1;transform:none;transition:none;}
  *{transition-duration:.001ms !important;animation-duration:.001ms !important;}
}

/* roulang page: category2 */
:root{
  --ink:#14171A;
  --ink-2:#3A3F42;
  --muted:#6E7478;
  --paper:#F7F5F1;
  --paper-2:#FFFFFF;
  --line:#E3DED6;
  --brand:#1E3A34;
  --brand-strong:#14261F;
  --accent:#C2542B;
  --sand:#D9C9A8;
  --ok:#2F6B4F;
  --warn:#B07A18;
  --err:#B23A2F;
  --r-btn:4px;
  --r-card:6px;
  --sh-1:0 1px 2px rgba(20,23,26,.04),0 8px 24px -12px rgba(20,23,26,.10);
  --sh-2:0 2px 4px rgba(20,23,26,.06),0 18px 40px -18px rgba(20,23,26,.16);
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --font-serif:"Noto Serif SC","Source Han Serif SC",Georgia,serif;
  --container:1240px;
}

*,*::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:17px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.24;letter-spacing:-.01em}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:rgba(194,84,43,.18)}

.container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;font-size:15px;font-weight:600;
  border-radius:var(--r-btn);border:1px solid transparent;cursor:pointer;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#F7F5F1;box-shadow:var(--sh-1)}
.btn-primary:hover{background:#162C27;transform:translateY(-2px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand);color:#F7F5F1}
.btn-light{background:#F7F5F1;color:var(--brand-strong)}
.btn-light:hover{background:#FFFFFF;transform:translateY(-2px);box-shadow:0 12px 26px -14px rgba(0,0,0,.4)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:#F7F5F1;position:relative;padding-bottom:2px;
}
.link-arrow::after{
  content:"";position:absolute;left:0;bottom:-2px;height:2px;width:0;background:var(--accent);
  transition:width .24s ease;
}
.link-arrow:hover::after{width:calc(100% - 20px)}
.link-arrow .arw{transition:transform .24s ease;font-size:15px}
.link-arrow:hover .arw{transform:translateX(4px)}
.link-arrow.dark{color:var(--brand)}
.link-arrow.dark:hover::after{width:calc(100% - 20px)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,241,.92);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  border-bottom:1px solid transparent;
  transition:border-color .28s ease,background-color .28s ease,box-shadow .28s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--line);box-shadow:0 8px 20px -20px rgba(20,23,26,.6)}
.header-inner{display:flex;align-items:center;gap:32px;height:64px;transition:height .28s ease}
.site-header.is-scrolled .header-inner{height:56px}

.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--brand-strong);letter-spacing:-.01em}
.brand-mark{
  width:22px;height:22px;border-radius:6px;flex:none;
  background:linear-gradient(140deg,var(--brand) 0%,#2F6B4F 55%,var(--accent) 100%);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;border:1px solid rgba(247,245,241,.85);border-radius:3px;
}
.brand-name{line-height:1}

.nav-links{margin-left:auto;display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--ink-2);padding:6px 0;
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);
  transition:width .24s ease;
}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after{width:100%}
.nav-links a.is-active{color:var(--brand);font-weight:600}
.nav-links a.is-active::after{width:100%}

.header-actions{display:flex;align-items:center;gap:12px}
.search{display:flex;align-items:center;gap:6px}
.icon-btn{
  width:40px;height:40px;display:grid;place-items:center;
  background:transparent;border:1px solid transparent;border-radius:var(--r-btn);
  color:var(--ink-2);cursor:pointer;transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.icon-btn:hover{background:rgba(30,58,52,.07);color:var(--brand)}
.icon-btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round}
.search-form{display:flex;width:0;overflow:hidden;transition:width .28s ease}
.search.is-open .search-form{width:260px}
.search-form input{
  width:100%;height:40px;padding:0 12px;font-size:14px;
  border:1px solid var(--line);border-radius:var(--r-btn);background:var(--paper-2);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form input::placeholder{color:var(--muted)}
.search-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(30,58,52,.14)}

.menu-btn{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--paper-2);cursor:pointer;padding:11px 10px;
  flex-direction:column;justify-content:space-between;align-items:stretch;
}
.menu-btn span{display:block;height:2px;background:var(--brand);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.menu-btn[aria-expanded="true"] span:nth-child(1){transform:translateY(8px) rotate(45deg)}
.menu-btn[aria-expanded="true"] span:nth-child(2){opacity:0}
.menu-btn[aria-expanded="true"] span:nth-child(3){transform:translateY(-8px) rotate(-45deg)}

/* 移动端抽屉 */
.drawer{
  position:fixed;inset:0;z-index:100;background:var(--paper);
  display:flex;flex-direction:column;
  transform:translateY(100%);visibility:hidden;
  transition:transform .22s ease,visibility .22s ease;
}
.drawer.is-open{transform:translateY(0);visibility:visible}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 18px;border-bottom:1px solid var(--line);
}
.drawer-close{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--paper-2);font-size:22px;line-height:1;cursor:pointer;color:var(--brand);
}
.drawer-body{padding:22px 18px 40px;overflow-y:auto}
.drawer-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:24px}
.drawer-nav a{
  padding:14px 4px;font-size:17px;font-weight:500;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.is-active{color:var(--brand);font-weight:700}
.drawer-search{display:flex;gap:10px;margin-bottom:20px}
.drawer-search input{
  flex:1;height:44px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--paper-2);font-size:15px;
}
.drawer-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(30,58,52,.14)}
.drawer .btn{width:100%}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;color:#F7F5F1;
  background-color:var(--brand-strong);
  background-image:url('/assets/images/backpic/back-3.webp');
  background-size:cover;background-position:center 40%;
  padding:clamp(58px,7.5vw,104px) 0 clamp(48px,6vw,84px);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,38,31,.80) 0%,rgba(20,38,31,.60) 46%,rgba(20,38,31,.90) 100%);
}
.cat-hero .container{position:relative;z-index:2}

.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:rgba(247,245,241,.72);margin-bottom:24px}
.breadcrumb li{display:flex;align-items:center;gap:8px}
.breadcrumb li+li::before{content:"/";color:rgba(247,245,241,.4)}
.breadcrumb a{transition:color .2s ease}
.breadcrumb a:hover{color:#FFFFFF;text-decoration:underline;text-underline-offset:3px}
.breadcrumb [aria-current="page"]{color:rgba(247,245,241,.92)}

.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.12em;color:rgba(247,245,241,.82);
  border:1px solid rgba(217,201,168,.5);border-radius:999px;
  padding:5px 14px;margin-bottom:24px;
}
.hero-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none}

.cat-hero h1{
  font-family:var(--font-serif);
  font-size:clamp(32px,5vw,60px);
  font-weight:700;line-height:1.1;letter-spacing:-.02em;
  max-width:860px;color:#FFFFFF;
}
.hero-sub{
  margin-top:22px;max-width:660px;
  font-size:clamp(16px,1.5vw,18px);line-height:1.8;color:rgba(247,245,241,.86);
}
.hero-actions{display:flex;flex-wrap:wrap;align-items:center;gap:20px;margin-top:34px}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:14px 34px;
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(247,245,241,.2);
  font-size:14px;color:rgba(247,245,241,.82);
}
.hero-facts li{display:flex;align-items:center;gap:9px}
.hero-facts li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);flex:none}

/* ---------- 通用板块 ---------- */
.section{padding:clamp(56px,6.5vw,96px) 0}
.section-tight{padding:clamp(40px,5vw,64px) 0}
.section-dark{background:var(--brand-strong);color:#F7F5F1}
.section-alt{background:var(--paper-2)}
.section-head{max-width:760px;margin-bottom:clamp(28px,3.4vw,44px)}
.section-head h2{font-size:clamp(23px,2.5vw,34px);font-weight:600;color:var(--ink)}
.section-head p{margin-top:14px;font-size:16px;line-height:1.85;color:var(--ink-2)}
.section-head .kicker{
  display:block;font-size:13px;letter-spacing:.14em;color:var(--accent);
  font-weight:600;margin-bottom:12px;
}
.section-dark .section-head h2{color:#F7F5F1}
.section-dark .section-head p{color:rgba(247,245,241,.82)}

.lead-text{
  font-size:17px;line-height:1.95;color:var(--ink-2);max-width:860px;
}
.lead-text + .lead-text{margin-top:16px}

/* ---------- 数据卡 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.stat-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh-1);
  transition:border-color .28s ease,box-shadow .28s ease,transform .28s ease;
}
.stat-card:hover{border-color:rgba(30,58,52,.3);box-shadow:var(--sh-2);transform:translateY(-3px)}
.stat-num{font-family:var(--font-serif);font-size:clamp(28px,3vw,38px);font-weight:600;color:var(--brand);line-height:1.1}
.stat-label{display:block;margin-top:10px;font-size:14px;font-weight:600;color:var(--ink-2)}
.stat-desc{display:block;margin-top:6px;font-size:13px;line-height:1.7;color:var(--muted)}

/* ---------- 错落双列 ---------- */
.stagger-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:56px 40px;max-width:1040px;margin:0 auto;
  padding-bottom:56px;
}
.stagger-item{position:relative}
.stagger-item:nth-child(even){transform:translateY(56px)}
.stagger-num{
  font-family:var(--font-serif);font-size:38px;line-height:1;font-weight:600;
  color:var(--muted);margin-bottom:14px;letter-spacing:-.02em;
  transition:color .28s ease;
}
.stagger-item:hover .stagger-num{color:var(--accent)}
.stagger-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:border-color .3s ease,box-shadow .3s ease;
}
.stagger-card:hover{border-color:rgba(30,58,52,.3);box-shadow:var(--sh-2)}
.card-media{
  position:relative;overflow:hidden;aspect-ratio:4/3;background:var(--paper);
  border-bottom:1px solid var(--line);
}
.stagger-item:nth-child(even) .card-media{aspect-ratio:3/4;max-height:520px}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .64s ease-out}
.stagger-card:hover .card-media img{transform:scale(1.03)}
.card-media::after{
  content:"";position:absolute;inset:0;border:1px solid rgba(217,201,168,.35);
  pointer-events:none;
}
.card-body{padding:22px 22px 26px}
.card-body h3{font-size:19px;font-weight:600;color:var(--ink)}
.card-body p{margin-top:10px;font-size:15px;line-height:1.85;color:var(--ink-2)}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}

.tag{
  display:inline-block;padding:4px 12px;border:1px solid var(--line);border-radius:999px;
  font-size:12.5px;color:var(--muted);background:var(--paper-2);
  transition:border-color .2s ease,color .2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand)}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:32px;counter-reset:steps}
.step{position:relative;padding-top:44px}
.step::before{
  content:"";position:absolute;top:13px;left:26px;right:-32px;height:1px;background:rgba(247,245,241,.2);
}
.step:last-child::before{display:none}
.step-num{
  position:absolute;top:0;left:0;width:28px;height:28px;border-radius:50%;
  display:grid;place-items:center;font-family:var(--font-serif);font-size:14px;font-weight:600;
  color:var(--brand-strong);background:var(--sand);flex:none;
}
.step h3{font-size:17px;font-weight:600;color:#F7F5F1}
.step p{margin-top:10px;font-size:14.5px;line-height:1.8;color:rgba(247,245,241,.78)}

/* ---------- 核对清单 ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px 48px}
.check-list li{
  position:relative;padding:14px 0 14px 32px;font-size:15.5px;line-height:1.8;
  color:var(--ink-2);border-bottom:1px solid var(--line);
}
.check-list li:last-child{border-bottom:0}
.check-list li::before{
  content:"";position:absolute;left:2px;top:22px;width:9px;height:9px;border-radius:2px;
  background:var(--accent);opacity:.85;
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:first-child{border-top:1px solid var(--line)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 4px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{
  position:relative;width:18px;height:18px;flex:none;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;
  transition:transform .3s ease,opacity .3s ease;
}
.faq-icon::before{left:0;top:8px;width:18px;height:2px}
.faq-icon::after{left:8px;top:0;width:2px;height:18px}
.faq-item.is-open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-item.is-open .faq-q{color:var(--brand)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .35s cubic-bezier(.22,.61,.36,1);
}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{
  padding:0 46px 24px 4px;font-size:15px;line-height:1.85;color:var(--ink-2);
}

/* ---------- CTA 通栏 ---------- */
.cta-bar{
  background:var(--brand-strong);color:#F7F5F1;
  border-radius:var(--r-card);
  padding:clamp(34px,4.4vw,54px);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  position:relative;overflow:hidden;
}
.cta-bar::after{
  content:"";position:absolute;right:-80px;top:-80px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(194,84,43,.28) 0%,rgba(194,84,43,0) 70%);
  pointer-events:none;
}
.cta-text{max-width:640px;position:relative;z-index:2}
.cta-text h2{font-size:clamp(22px,2.4vw,30px);color:#FFFFFF}
.cta-text p{margin-top:12px;font-size:15.5px;line-height:1.8;color:rgba(247,245,241,.82)}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2}
.cta-note{margin-top:16px;font-size:13px;color:var(--muted)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-strong);color:rgba(247,245,241,.86);padding:clamp(48px,6vw,80px) 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:#FFFFFF}
.footer-about{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(247,245,241,.72);max-width:340px}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:8px;font-size:14px;color:rgba(247,245,241,.72)}
.footer-contact a{color:var(--sand);transition:color .2s ease}
.footer-contact a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.footer-col h3{font-size:14px;font-weight:600;color:#FFFFFF;letter-spacing:.06em;margin-bottom:18px}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col li{font-size:14px;line-height:1.7;color:rgba(247,245,241,.72)}
.footer-col a{transition:color .2s ease}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 0 28px;border-top:1px solid rgba(217,201,168,.28);
  font-size:13px;color:rgba(247,245,241,.6);
}
.footer-bottom a{color:rgba(247,245,241,.8)}
.footer-bottom a:hover{color:var(--accent)}

/* ---------- 进入动画 ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .45s cubic-bezier(.22,.61,.36,1),transform .45s cubic-bezier(.22,.61,.36,1)}
.reveal.is-visible{opacity:1;transform:none}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{padding:0 24px}
  .stagger-grid{max-width:960px;gap:48px 32px}
}

@media (max-width:1023px){
  .nav-links,.search{display:none}
  .menu-btn{display:flex}
  .header-inner{height:60px}
  .site-header.is-scrolled .header-inner{height:56px}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));gap:36px 28px}
  .step:nth-child(2)::before{display:none}
  .step::before{right:-28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}

@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .cat-hero{padding:44px 0 52px;background-position:center 30%}
  .hero-actions{gap:16px}
  .hero-actions .btn{width:100%}
  .hero-facts{gap:12px 22px;margin-top:30px}
  .stagger-grid{grid-template-columns:1fr;gap:36px;padding-bottom:0}
  .stagger-item:nth-child(even){transform:none}
  .stagger-item:nth-child(even) .card-media{aspect-ratio:4/3;max-height:none}
  .stagger-num{font-size:30px;margin-bottom:10px}
  .check-grid{grid-template-columns:1fr;gap:0}
  .step{padding-top:40px}
  .step::before{display:none}
  .faq-q{font-size:16px;padding:18px 2px}
  .faq-a p{padding:0 20px 20px 2px}
  .cta-bar{padding:30px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

@media (max-width:480px){
  .stat-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .cat-hero h1{font-size:30px}
  .hero-sub{font-size:15.5px}
  .card-body{padding:18px 16px 22px}
}

@media (prefers-reduced-motion:reduce){
  html{scroll-behavior:auto}
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important}
  .reveal{opacity:1;transform:none}
}

/* roulang page: category3 */
:root{
  --ink:#14171A;
  --ink-2:#3A3F42;
  --muted:#6E7478;
  --paper:#F7F5F1;
  --paper-2:#FFFFFF;
  --line:#E3DED6;
  --brand:#1E3A34;
  --brand-strong:#14261F;
  --accent:#C2542B;
  --sand:#D9C9A8;
  --ok:#2F6B4F;
  --warn:#B07A18;
  --err:#B23A2F;
  --sh-1:0 1px 2px rgba(20,23,26,.04),0 8px 24px -12px rgba(20,23,26,.10);
  --sh-2:0 2px 4px rgba(20,23,26,.06),0 18px 40px -18px rgba(20,23,26,.16);
  --r-btn:4px;
  --r-card:6px;
  --r-img:4px;
  --r-pill:999px;
  --container:1240px;
  --sans:-apple-system,"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",sans-serif;
  --serif:"Noto Serif SC","Source Han Serif SC","Songti SC",serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
button{background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:2px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}

.skip-link{
  position:absolute;left:-9999px;top:0;
  background:var(--brand);color:#fff;padding:10px 16px;border-radius:var(--r-btn);z-index:200;
}
.skip-link:focus{left:16px;top:12px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,245,241,.92);
  -webkit-backdrop-filter:blur(6px);
  backdrop-filter:blur(6px);
  border-bottom:1px solid transparent;
  transition:border-color .24s ease,box-shadow .24s ease;
}
.site-header.is-scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 6px 18px -18px rgba(20,23,26,.5);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:28px;height:68px;
  transition:height .24s ease;
}
.site-header.is-scrolled .header-inner{height:56px;}

.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:19px;letter-spacing:-.01em;color:var(--ink);}
.brand-mark{
  width:20px;height:20px;border-radius:5px;
  background:var(--brand);
  position:relative;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;right:-3px;bottom:-3px;
  width:8px;height:8px;border-radius:50%;background:var(--accent);
  border:2px solid var(--paper);
}

.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{
  position:relative;padding:6px 0;font-size:15px;font-weight:500;color:var(--ink-2);
  transition:color .2s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);
  transition:width .24s ease;
}
.nav-links a:hover{color:var(--ink);}
.nav-links a:hover::after{width:100%;}
.nav-links a.is-active{color:var(--brand);font-weight:600;}
.nav-links a.is-active::after{width:100%;}

.nav-actions{display:flex;align-items:center;gap:14px;}
.search-wrap{position:relative;display:flex;align-items:center;}
.search-toggle{
  width:44px;height:44px;border-radius:var(--r-btn);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid transparent;color:var(--ink-2);
  transition:border-color .2s ease,color .2s ease,background .2s ease;
}
.search-toggle:hover{border-color:var(--line);color:var(--brand);background:var(--paper-2);}
.search-toggle svg{width:18px;height:18px;}
.search-box{
  position:absolute;right:0;top:50%;transform:translateY(-50%) scaleX(.92);
  transform-origin:right center;
  width:0;opacity:0;pointer-events:none;
  display:flex;align-items:center;
  transition:width .24s ease,opacity .2s ease,transform .24s ease;
}
.search-wrap.is-open .search-box{width:260px;opacity:1;pointer-events:auto;transform:translateY(-50%) scaleX(1);}
.search-box input{
  width:100%;height:44px;padding:0 40px 0 14px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--paper-2);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-box input::placeholder{color:var(--muted);font-size:14px;}
.search-box input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(30,58,52,.14);}
.search-box .search-go{
  position:absolute;right:6px;width:32px;height:32px;border-radius:var(--r-btn);
  display:inline-flex;align-items:center;justify-content:center;color:var(--muted);
}
.search-box .search-go:hover{color:var(--accent);}

.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:var(--paper-2);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:17px;height:1.6px;background:var(--ink);transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(5.6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-5.6px) rotate(-45deg);}

/* buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:14.5px;font-weight:600;letter-spacing:.01em;
  border:1px solid transparent;cursor:pointer;
  transition:background .24s ease,color .24s ease,border-color .24s ease,transform .24s ease,box-shadow .24s ease;
}
.btn .arrow{display:inline-block;transition:transform .24s ease;}
.btn:hover .arrow{transform:translateX(4px);}
.btn:active{transform:translateY(1px);}
.btn-primary{background:var(--brand);color:#F7F5F1;box-shadow:var(--sh-1);}
.btn-primary:hover{background:var(--brand-strong);transform:translateY(-2px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand);color:#F7F5F1;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-light{background:var(--paper-2);color:var(--brand-strong);border-color:var(--paper-2);}
.btn-light:hover{background:#EDE9E1;transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#F2EFE8;border-color:rgba(255,255,255,.5);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);transform:translateY(-2px);}

.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--brand);
  position:relative;padding:4px 0;
}
.btn-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent);
  transition:width .24s ease;
}
.btn-link:hover::after{width:100%;}
.btn-link .arrow{transition:transform .24s ease;}
.btn-link:hover .arrow{transform:translateX(4px);}

/* mobile drawer */
.drawer{
  position:fixed;inset:0;z-index:120;
  background:var(--paper);
  display:none;flex-direction:column;
  padding:20px 22px 32px;
}
.drawer.is-open{display:flex;animation:drawerIn .22s ease;}
@keyframes drawerIn{from{transform:translateY(14px);opacity:0}to{transform:translateY(0);opacity:1}}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:26px;}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-btn);border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;font-size:20px;line-height:1;color:var(--ink-2);
}
.drawer-body{overflow-y:auto;flex:1;display:flex;flex-direction:column;gap:26px;}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  padding:14px 2px;border-bottom:1px solid var(--line);
  font-size:17px;font-weight:500;color:var(--ink-2);display:flex;justify-content:space-between;align-items:center;
}
.drawer-nav a.is-active{color:var(--brand);font-weight:600;border-bottom-color:rgba(30,58,52,.35);}
.drawer-nav a::after{content:"→";color:var(--muted);font-size:14px;}
.drawer-form{display:flex;flex-direction:column;gap:12px;}
.drawer-form input{
  height:46px;padding:0 14px;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--paper-2);
}
.drawer-form input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 2px rgba(30,58,52,.14);}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--muted);
  padding:22px 0 18px;
}
.breadcrumb a{color:var(--muted);transition:color .2s ease;}
.breadcrumb a:hover{color:var(--ink);}
.breadcrumb .sep{color:var(--sand);}
.breadcrumb .current{color:var(--ink-2);}

/* ---------- hero ---------- */
.page-hero{padding-bottom:8px;}
.hero-panel{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--sand);
  min-height:360px;
  display:flex;align-items:flex-end;
  background:var(--paper-2);
}
.hero-media{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(20,23,26,.82) 0%,rgba(20,23,26,.62) 48%,rgba(20,23,26,.28) 100%);
}
.hero-copy{position:relative;z-index:2;padding:clamp(28px,4vw,52px);max-width:760px;color:#F4F1EA;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.14em;text-transform:uppercase;
  color:rgba(244,241,234,.78);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);}
.hero-copy h1{
  font-family:var(--serif);
  font-size:clamp(32px,5vw,60px);
  font-weight:700;line-height:1.1;letter-spacing:-.02em;
  margin-bottom:16px;color:#FBF9F5;
}
.hero-copy p{font-size:17px;line-height:1.8;color:rgba(244,241,234,.86);max-width:620px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:var(--r-pill);
  font-size:12.5px;color:var(--ink-2);border:1px solid var(--line);
  background:var(--paper-2);
  transition:border-color .2s ease,color .2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand);}
.tag-dot::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);}
.hero-tags .tag{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.32);color:#F2EFE8;}
.hero-tags .tag:hover{border-color:var(--accent);color:#fff;}

/* ---------- stats ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(3,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  margin-top:clamp(32px,4vw,52px);
}
.stat{padding:24px 22px;border-right:1px solid var(--line);}
.stat:last-child{border-right:0;}
.stat-num{
  font-family:var(--serif);font-size:clamp(26px,3vw,38px);font-weight:700;line-height:1.1;
  color:var(--brand);display:block;
}
.stat-label{margin-top:8px;font-size:13.5px;color:var(--muted);display:block;}

/* ---------- sections ---------- */
.section{padding:clamp(56px,7vw,104px) 0;}
.section-alt{background:var(--paper-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:720px;margin-bottom:clamp(28px,3.4vw,44px);}
.section-head h2{
  font-size:clamp(24px,2.6vw,36px);font-weight:600;line-height:1.22;letter-spacing:-.01em;color:var(--ink);
}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px;}
.section-head .rule{width:44px;height:2px;background:var(--accent);margin-bottom:18px;}

/* ---------- matrix ---------- */
.matrix{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
}
.matrix-col{padding:30px 24px 26px;border-right:1px solid var(--line);display:flex;flex-direction:column;gap:16px;}
.matrix-col:last-child{border-right:0;}
.matrix-idx{
  font-family:var(--serif);font-size:15px;color:var(--muted);letter-spacing:.06em;
}
.matrix-col h3{font-size:18px;font-weight:600;color:var(--ink);}
.matrix-col ul{display:flex;flex-direction:column;gap:10px;}
.matrix-col li{
  position:relative;padding-left:16px;font-size:14.5px;line-height:1.72;color:var(--ink-2);
}
.matrix-col li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;background:var(--accent);border-radius:1px;
}
.matrix-col .btn-link{margin-top:auto;}

/* ---------- timeline ---------- */
.timeline{position:relative;padding-left:34px;}
.timeline::before{
  content:"";position:absolute;left:6px;top:10px;bottom:14px;width:1px;background:var(--line);
}
.timeline li{position:relative;padding-bottom:34px;}
.timeline li:last-child{padding-bottom:0;}
.timeline li::before{
  content:"";position:absolute;left:-34px;top:9px;width:13px;height:13px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 4px rgba(194,84,43,.12);
}
.timeline h3{font-size:17.5px;font-weight:600;margin-bottom:6px;}
.timeline p{font-size:15px;color:var(--ink-2);max-width:720px;}
.timeline .step-no{
  font-family:var(--serif);font-size:13px;color:var(--muted);letter-spacing:.12em;display:block;margin-bottom:4px;
}

/* ---------- faq ---------- */
.faq{border-top:1px solid var(--line);max-width:920px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:20px 2px;font-size:17px;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary::after{
  content:"";flex:0 0 auto;width:11px;height:11px;margin-right:4px;
  border-right:1.8px solid var(--muted);border-bottom:1.8px solid var(--muted);
  transform:rotate(45deg);transition:transform .3s ease,border-color .2s ease;
}
.faq-item[open] summary::after{transform:rotate(-135deg);border-color:var(--accent);}
.faq-body{padding:0 2px 22px;max-width:780px;}
.faq-body p{font-size:15px;line-height:1.85;color:var(--ink-2);animation:fadeUp .32s ease;}
@keyframes fadeUp{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:translateY(0)}}

/* ---------- entry cards ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.entry-card{
  background:var(--paper-2);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;
  box-shadow:var(--sh-1);
  transition:border-color .24s ease,box-shadow .24s ease,transform .24s ease;
}
.entry-card:hover{border-color:rgba(30,58,52,.35);box-shadow:var(--sh-2);transform:translateY(-3px);}
.entry-media{aspect-ratio:4/3;overflow:hidden;border-bottom:1px solid var(--line);background:var(--paper);}
.entry-media img{width:100%;height:100%;object-fit:cover;transition:transform .64s ease-out;}
.entry-card:hover .entry-media img{transform:scale(1.03);}
.entry-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.entry-body h3{font-size:18px;font-weight:600;}
.entry-body p{font-size:14.5px;color:var(--ink-2);line-height:1.75;}
.entry-body .btn-link{margin-top:auto;}

/* ---------- cta band ---------- */
.cta-band{background:var(--brand-strong);color:#F2EFE8;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:clamp(34px,4.6vw,56px) 0;
}
.cta-inner h2{
  font-family:var(--serif);font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.25;color:#FBF9F5;
}
.cta-inner p{margin-top:10px;font-size:14.5px;color:rgba(242,239,232,.72);max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-strong);color:#E9E5DC;padding-top:clamp(48px,6vw,72px);}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px 32px;
  padding-bottom:44px;border-bottom:1px solid rgba(217,201,168,.22);
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#FBF9F5;}
.footer-brand .brand-mark{background:#F2EFE8;}
.footer-brand .brand-mark::after{border-color:var(--brand-strong);}
.footer-about{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(233,229,220,.72);max-width:330px;}
.footer-contact{margin-top:18px;display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:rgba(233,229,220,.72);}
.footer-contact a{color:#F2EFE8;position:relative;width:fit-content;}
.footer-contact a::after{
  content:"";position:absolute;left:0;bottom:-2px;height:1px;width:0;background:var(--accent);transition:width .24s ease;
}
.footer-contact a:hover::after{width:100%;}
.footer-col h3{font-size:14px;font-weight:600;color:#FBF9F5;margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col li, .footer-col a{font-size:14px;color:rgba(233,229,220,.72);}
.footer-col a{transition:color .2s ease;}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  padding:20px 0 26px;font-size:13px;color:rgba(233,229,220,.6);
}
.footer-bottom a{color:#E9E5DC;text-decoration:underline;text-underline-offset:3px;}
.footer-bottom a:hover{color:var(--accent);}

/* ---------- reveal ---------- */
.reveal{opacity:0;transform:translateY(14px);transition:opacity .45s cubic-bezier(.22,.61,.36,1),transform .45s cubic-bezier(.22,.61,.36,1);}
.reveal.is-in{opacity:1;transform:translateY(0);}
body.is-scrolled .reveal,
.reveal.is-in{will-change:auto;}

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

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .header-inner{height:64px;}
}
@media (max-width:1023px){
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .search-wrap{display:none;}
  .hero-panel{min-height:320px;}
  .matrix{grid-template-columns:repeat(2,1fr);}
  .matrix-col:nth-child(2){border-right:0;}
  .matrix-col:nth-child(1),
  .matrix-col:nth-child(2){border-bottom:1px solid var(--line);}
  .entry-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 18px;}
  .hero-panel{min-height:290px;}
  .hero-copy{max-width:none;}
  .stat-strip{grid-template-columns:1fr;}
  .stat{border-right:0;border-bottom:1px solid var(--line);display:flex;align-items:baseline;gap:14px;}
  .stat:last-child{border-bottom:0;}
  .stat-num{margin-bottom:0;}
  .stat-label{margin-top:0;}
  .matrix{grid-template-columns:1fr;}
  .matrix-col{border-right:0;border-bottom:1px solid var(--line);}
  .matrix-col:last-child{border-bottom:0;}
  .entry-grid{grid-template-columns:1fr;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
}
@media (max-width:520px){
  .brand{font-size:17px;}
  .hero-copy h1{font-size:30px;}
  .cta-actions{flex-direction:column;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}