/* roulang page: index */
:root{
  --brand-900:#0F3D30;
  --brand-700:#14503F;
  --brand-500:#1F7A5C;
  --accent-400:#C6F24E;
  --accent-600:#A8D62F;
  --ink-900:#16201C;
  --ink-600:#4C5B54;
  --ink-400:#7C8A83;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E4E0D6;
  --danger:#C24A3A;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(15,61,48,.04);
  --shadow-hover:0 10px 28px rgba(15,61,48,.10);
  --font-cn:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--brand-700);text-decoration:none;transition:color .16s ease;}
a:hover{color:var(--brand-500);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
:focus-visible{outline:3px solid var(--accent-400);outline-offset:2px;}
input,select,textarea{font-family:inherit;font-size:15px;}
.num{font-variant-numeric:tabular-nums;}

/* ============ 侧栏导航 ============ */
.side-nav{
  position:fixed;top:0;left:0;width:248px;height:100vh;
  background:var(--brand-900);color:#EDF3EE;
  display:flex;flex-direction:column;z-index:60;
  border-right:1px solid rgba(255,255,255,.06);
}
.side-brand{display:flex;align-items:center;gap:10px;padding:22px 20px 18px;border-bottom:1px solid rgba(255,255,255,.10);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:linear-gradient(150deg,var(--accent-400),var(--accent-600));
  color:var(--brand-900);font-weight:800;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  letter-spacing:-.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:14.5px;font-weight:700;color:#FFFFFF;letter-spacing:.01em;}
.brand-text span{font-size:11.5px;color:rgba(237,243,238,.62);letter-spacing:.06em;}
.nav-scroll{flex:1;overflow-y:auto;padding:18px 0 12px;}
.nav-title{font-size:11.5px;letter-spacing:.14em;color:rgba(237,243,238,.52);padding:0 20px 10px;font-weight:600;}
.nav-list{display:flex;flex-direction:column;gap:2px;padding:0 12px;}
.nav-list a{
  display:flex;align-items:center;gap:10px;
  padding:11px 12px;border-radius:9px;color:rgba(237,243,238,.86);
  font-size:14.5px;position:relative;transition:background .16s ease,color .16s ease;
}
.nav-list a i{width:16px;text-align:center;font-size:13.5px;color:rgba(198,242,78,.72);}
.nav-list a:hover{background:rgba(255,255,255,.07);color:#fff;}
.nav-list a.is-active{background:rgba(255,255,255,.11);color:#fff;font-weight:600;}
.nav-list a.is-active::before{
  content:"";position:absolute;left:-12px;top:8px;bottom:8px;width:3px;
  border-radius:0 3px 3px 0;background:var(--accent-400);
}
.nav-side-block{padding:14px 20px 0;}
.nav-search{position:relative;}
.nav-search input{
  width:100%;height:42px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);
  color:#F2F6F2;padding:0 38px 0 13px;font-size:14px;
}
.nav-search input::placeholder{color:rgba(237,243,238,.5);}
.nav-search input:focus{outline:none;border-color:var(--accent-600);box-shadow:0 0 0 3px rgba(198,242,78,.28);}
.nav-search button{
  position:absolute;right:6px;top:6px;width:30px;height:30px;border:0;border-radius:8px;
  background:transparent;color:rgba(237,243,238,.7);
}
.nav-search button:hover{background:rgba(255,255,255,.1);color:var(--accent-400);}
.nav-actions{display:flex;gap:8px;margin-top:12px;}
.nav-mini{
  flex:1;border:1px solid rgba(255,255,255,.16);background:transparent;color:#E8EFE9;
  height:38px;border-radius:9px;font-size:13px;display:flex;align-items:center;justify-content:center;gap:6px;
  transition:all .16s ease;
}
.nav-mini:hover{border-color:var(--accent-400);color:var(--accent-400);}
.nav-mini:active{transform:translateY(1px);}
.nav-foot{padding:16px 20px 20px;font-size:11.5px;line-height:1.7;color:rgba(237,243,238,.5);border-top:1px solid rgba(255,255,255,.08);}

/* ============ 移动端导航 ============ */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:70;height:60px;
  background:var(--brand-900);color:#fff;align-items:center;justify-content:space-between;
  padding:0 16px;
}
.brand-mini{color:#fff;font-size:15px;font-weight:700;}
.brand-mini:hover{color:var(--accent-400);}
.burger{width:42px;height:42px;border:1px solid rgba(255,255,255,.2);border-radius:10px;background:transparent;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;}
.burger span{display:block;width:17px;height:2px;background:#fff;border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
.burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.drawer{
  position:fixed;inset:0;z-index:65;background:var(--paper);
  transform:translateX(-100%);transition:transform .24s ease;overflow-y:auto;padding:76px 18px 32px;
}
.drawer.is-open{transform:translateX(0);}
.drawer .nav-list a{color:var(--ink-900);font-size:17px;line-height:56px;padding:0 14px;border-radius:10px;}
.drawer .nav-list a i{color:var(--brand-500);}
.drawer .nav-list a.is-active{background:rgba(31,122,92,.10);color:var(--brand-700);}
.drawer .nav-list a.is-active::before{left:0;}
.drawer .nav-search input{border:1px solid var(--line);background:var(--surface);color:var(--ink-900);}
.drawer .nav-search input::placeholder{color:var(--ink-400);}
.drawer .nav-search button{color:var(--ink-600);}
.drawer-title{font-size:12px;letter-spacing:.14em;color:var(--ink-400);margin:0 0 10px;font-weight:600;}

/* ============ 主体框架 ============ */
.page-main{margin-left:248px;min-height:100vh;display:flex;flex-direction:column;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.topbar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 0 14px;border-bottom:1px solid var(--line);
}
.crumb{font-size:13px;color:var(--ink-400);}
.crumb a{color:var(--ink-600);}
.crumb span{margin:0 8px;color:var(--line);}
.topbar-tools{display:flex;align-items:center;gap:10px;}
.top-search{position:relative;}
.top-search input{
  height:44px;width:230px;border-radius:var(--radius-btn);border:1px solid var(--line);
  background:var(--surface);padding:0 40px 0 14px;color:var(--ink-900);
}
.top-search input::placeholder{color:var(--ink-400);}
.top-search input:focus{outline:none;border-color:var(--accent-600);box-shadow:0 0 0 3px rgba(198,242,78,.35);}
.top-search button{position:absolute;right:6px;top:6px;width:32px;height:32px;border:0;background:transparent;color:var(--ink-600);border-radius:8px;}
.top-search button:hover{color:var(--brand-700);background:var(--paper);}

/* ============ 通用组件 ============ */
.pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;border-radius:var(--radius-pill);
  background:rgba(198,242,78,.30);color:var(--brand-900);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.pill.solid{background:var(--accent-400);}
.pill.muted{background:var(--paper);color:var(--ink-600);border:1px solid var(--line);}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:transform .16s ease,background .16s ease,color .16s ease,border-color .16s ease,box-shadow .16s ease;
}
.btn:active{transform:translateY(0);}
.btn-primary{background:var(--brand-900);color:#F7F4EE;box-shadow:inset 0 0 0 2px var(--accent-400);}
.btn-primary:hover{background:var(--accent-400);color:var(--brand-900);transform:translateY(-2px);}
.btn-ghost{background:transparent;color:var(--brand-700);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-500);transform:translateY(-2px);}
.btn-accent{background:var(--accent-400);color:var(--brand-900);}
.btn-accent:hover{background:#FFFFFF;color:var(--brand-900);transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#F7F4EE;border-color:rgba(247,244,238,.42);}
.btn-outline-light:hover{border-color:var(--accent-400);color:var(--accent-400);transform:translateY(-2px);}
.btn-text{height:auto;padding:0;color:var(--brand-700);font-weight:600;position:relative;background:none;}
.btn-text::after{content:"";position:absolute;left:0;bottom:-3px;width:0;height:2px;background:var(--accent-400);transition:width .16s ease;}
.btn-text:hover::after{width:100%;}
.section{padding:88px 0 0;}
.section-last{padding-bottom:96px;}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px;}
.sec-head h2{
  font-size:28px;font-weight:700;line-height:1.3;position:relative;padding-left:16px;letter-spacing:-.01em;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:2px;
  background:var(--accent-400);
}
.sec-head p{font-size:14px;color:var(--ink-600);margin-top:6px;padding-left:16px;}
.sec-link{font-size:14px;font-weight:600;color:var(--brand-700);white-space:nowrap;}
.sec-link i{margin-left:5px;transition:transform .16s ease;font-size:12px;}
.sec-link:hover i{transform:translateX(3px);}

/* ============ Hero ============ */
.hero{padding:34px 0 0;}
.hero-inner{
  position:relative;display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
  gap:0;background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
}
.hero-copy{padding:52px 44px 46px;}
.hero-copy h1{
  font-size:40px;font-weight:800;line-height:1.2;letter-spacing:-.01em;margin:16px 0 14px;
}
.hero-sub{font-size:17px;color:var(--ink-600);max-width:34em;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 22px;}
.badge-row{display:flex;flex-wrap:wrap;gap:8px;}
.badge-row li{
  font-size:12.5px;font-weight:600;color:var(--brand-700);
  background:var(--paper);border:1px solid var(--line);border-radius:var(--radius-pill);
  padding:5px 13px;
}
.hero-media{position:relative;min-height:340px;background:var(--brand-900);}
.hero-media img{width:100%;height:100%;object-fit:cover;border-radius:0;filter:grayscale(.15);}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(15,61,48,.92) 0%,rgba(15,61,48,.55) 45%,rgba(15,61,48,.22) 100%);
}
.hero-media figcaption{
  position:absolute;left:24px;bottom:22px;right:24px;z-index:2;color:#F7F4EE;
  font-size:13px;letter-spacing:.02em;line-height:1.6;
}

/* ============ 数据条 ============ */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:1px;background:var(--line);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;margin-top:24px;
}
.stat-bar div{background:var(--surface);padding:22px 24px;}
.stat-bar strong{display:block;font-size:26px;font-weight:800;color:var(--brand-900);letter-spacing:-.02em;}
.stat-bar span{font-size:13px;color:var(--ink-400);}

/* ============ 合集目录 ============ */
.catalog{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px;}
.catalog-item{
  display:flex;align-items:center;gap:18px;
  padding:20px 14px 20px 16px;border-bottom:1px solid var(--line);
  position:relative;transition:background .16s ease;
}
.catalog-item::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:var(--accent-400);border-radius:2px;opacity:0;transition:opacity .16s ease;
}
.catalog-item:hover{background:var(--paper);}
.catalog-item:hover::before{opacity:1;}
.catalog-num{
  font-size:15px;font-weight:800;color:var(--ink-400);width:32px;flex:0 0 32px;
  font-variant-numeric:tabular-nums;
}
.catalog-body{flex:1;min-width:0;}
.catalog-body h3{font-size:17px;font-weight:600;line-height:1.4;}
.catalog-body p{font-size:13.5px;color:var(--ink-600);line-height:1.7;margin-top:3px;}
.catalog-meta{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.catalog-meta .pill{font-size:11.5px;padding:3px 10px;}
.catalog-meta i{font-size:12px;color:var(--ink-400);transition:transform .16s ease,color .16s ease;}
.catalog-item:hover .catalog-meta i{transform:translateX(4px);color:var(--brand-700);}

/* ============ 精选条目 ============ */
.feature-grid{display:grid;grid-template-columns:repeat(12,minmax(0,1fr));gap:20px;}
.feature-main{
  grid-column:span 8;display:grid;grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);transition:box-shadow .18s ease,transform .18s ease;
}
.feature-main:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.feature-main figure{position:relative;min-height:260px;background:var(--paper);}
.feature-main img{width:100%;height:100%;object-fit:cover;border-radius:0;aspect-ratio:4/3;}
.feature-main .feature-copy{padding:26px 24px;display:flex;flex-direction:column;gap:10px;}
.feature-column{grid-column:span 4;display:grid;gap:20px;align-content:start;}
.mini-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:grid;grid-template-columns:104px minmax(0,1fr);
  transition:box-shadow .18s ease,transform .18s ease;
}
.mini-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.mini-card img{width:100%;height:100%;object-fit:cover;border-radius:0;aspect-ratio:4/3;}
.mini-card .mini-copy{padding:14px 16px;display:flex;flex-direction:column;gap:6px;}
.card-title{font-size:17px;font-weight:600;line-height:1.45;}
.card-desc{font-size:13.5px;color:var(--ink-600);line-height:1.72;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.card-foot{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--ink-400);margin-top:auto;}
.tag{font-size:12px;font-weight:600;color:var(--brand-700);background:rgba(31,122,92,.09);border-radius:var(--radius-pill);padding:3px 11px;}

/* ============ 最新信息 ============ */
.news-list{display:flex;flex-direction:column;}
.news-row{border-bottom:1px solid var(--line);}
.news-row:first-child{border-top:1px solid var(--line);}
.news-link{
  display:grid;grid-template-columns:64px minmax(0,1fr) auto;gap:18px;align-items:center;
  padding:18px 12px;transition:background .16s ease;
}
.news-link:hover{background:var(--paper);}
.date-block{
  width:52px;height:52px;border-radius:10px;background:var(--paper);
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  color:var(--brand-700);font-weight:700;font-size:13px;line-height:1.2;
  font-variant-numeric:tabular-nums;border:1px solid var(--line);
}
.news-body h3{font-size:16.5px;font-weight:600;line-height:1.5;color:var(--ink-900);}
.news-body p{font-size:13.5px;color:var(--ink-600);margin-top:4px;line-height:1.7;}
.news-side{display:flex;align-items:center;gap:12px;color:var(--ink-400);font-size:13px;}
.news-side i{font-size:12px;}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--radius-card);background:var(--surface);
  padding:48px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-mark{
  width:76px;height:56px;border-radius:10px;
  background:
    repeating-linear-gradient(135deg,rgba(31,122,92,.14) 0 8px,rgba(31,122,92,.05) 8px 16px),
    var(--paper);
  border:1px solid var(--line);
}
.empty-state p{font-size:15px;color:var(--ink-600);}

/* ============ 相关推荐 ============ */
.rec-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.rec-card{
  display:grid;grid-template-columns:132px minmax(0,1fr);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;transition:box-shadow .18s ease,transform .18s ease;
}
.rec-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.rec-card img{width:100%;height:100%;object-fit:cover;border-radius:0;aspect-ratio:1/1;}
.rec-card .rec-copy{padding:16px 18px;display:flex;flex-direction:column;gap:8px;}

/* ============ CTA ============ */
.cta-band{
  position:relative;border-radius:var(--radius-card);overflow:hidden;
  background:var(--brand-900);color:#F7F4EE;
  display:grid;grid-template-columns:minmax(0,1.2fr) minmax(0,.8fr);gap:24px;
  align-items:center;padding:44px 44px;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.16;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.35;}
.cta-band p{font-size:14.5px;color:rgba(247,244,238,.78);margin-top:10px;max-width:36em;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;justify-content:flex-end;}
.toast{
  position:fixed;left:50%;bottom:34px;transform:translate(-50%,16px);
  background:var(--brand-900);color:#F7F4EE;padding:12px 20px;border-radius:var(--radius-btn);
  font-size:14px;opacity:0;pointer-events:none;transition:opacity .22s ease,transform .22s ease;z-index:120;
  box-shadow:0 12px 30px rgba(15,61,48,.28);
}
.toast.is-show{opacity:1;transform:translate(-50%,0);}

/* ============ FAQ ============ */
.faq{border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);position:relative;}
.faq-item::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:2px;
  background:var(--accent-400);opacity:0;transition:opacity .18s ease;
}
.faq-item.is-open::before{opacity:1;}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  padding:20px 44px 20px 18px;font-size:16px;font-weight:600;color:var(--ink-900);
  position:relative;line-height:1.6;transition:color .16s ease;
}
.faq-q:hover{color:var(--brand-700);}
.faq-q i{
  position:absolute;right:16px;top:50%;transform:translateY(-50%);
  font-size:13px;color:var(--ink-400);transition:transform .18s ease,color .18s ease;
}
.faq-item.is-open .faq-q i{transform:translateY(-50%) rotate(180deg);color:var(--brand-700);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .18s ease;}
.faq-a p{padding:0 44px 22px 18px;font-size:15px;line-height:1.8;color:var(--ink-600);}

/* ============ 页脚 ============ */
.site-footer{margin-top:88px;background:var(--brand-900);color:rgba(247,244,238,.82);}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;
  padding:56px 0 40px;
}
.footer-grid h3{font-size:14px;font-weight:600;color:#fff;position:relative;padding-bottom:14px;margin-bottom:16px;}
.footer-grid h3::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--accent-400);border-radius:2px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--accent-400);color:var(--brand-900);}
.footer-brand strong{color:#fff;font-size:15px;}
.footer-about{font-size:13.5px;line-height:1.85;color:rgba(247,244,238,.7);}
.footer-list li{margin-bottom:9px;}
.footer-list a{font-size:13.5px;color:rgba(247,244,238,.78);display:inline-block;transition:color .16s ease,transform .16s ease;}
.footer-list a:hover{color:var(--accent-400);transform:translateX(2px);}
.footer-contact li{font-size:13.5px;line-height:1.9;color:rgba(247,244,238,.72);}
.footer-contact i{color:var(--accent-400);width:16px;margin-right:7px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;font-size:12.5px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;color:rgba(247,244,238,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .wrap{padding:0 22px;}
  .hero-copy{padding:42px 34px 38px;}
  .hero-copy h1{font-size:34px;}
}
@media (max-width:1023px){
  .side-nav{display:none;}
  .mobile-bar{display:flex;}
  .page-main{margin-left:0;}
  .top-search{display:none;}
  .hero-inner{grid-template-columns:1fr;}
  .hero-media{min-height:240px;order:-1;}
  .hero-media::after{background:linear-gradient(180deg,rgba(15,61,48,.35) 0%,rgba(15,61,48,.88) 100%);}
  .catalog{grid-template-columns:1fr;gap:0;}
  .feature-main{grid-column:span 12;grid-template-columns:1fr;}
  .feature-column{grid-column:span 12;grid-template-columns:repeat(3,minmax(0,1fr));}
  .mini-card{grid-template-columns:1fr;}
  .mini-card img{aspect-ratio:16/9;}
  .stat-bar{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-band{grid-template-columns:1fr;padding:36px 28px;}
  .cta-actions{justify-content:flex-start;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px;padding:44px 0 32px;}
}
@media (max-width:767px){
  body{font-size:15px;line-height:1.9;}
  .section{padding:56px 0 0;}
  .wrap{padding:0 16px;}
  .hero-copy{padding:30px 20px 28px;}
  .hero-copy h1{font-size:26px;line-height:1.3;}
  .hero-sub{font-size:15px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:10px;margin-bottom:20px;}
  .sec-head h2{font-size:22px;}
  .feature-column{grid-template-columns:1fr;}
  .news-link{grid-template-columns:1fr;gap:10px;}
  .date-block{width:auto;height:auto;flex-direction:row;gap:4px;padding:4px 10px;background:var(--paper);border-radius:var(--radius-pill);}
  .news-side{justify-content:space-between;width:100%;}
  .rec-grid{grid-template-columns:1fr;}
  .rec-card{grid-template-columns:104px minmax(0,1fr);}
  .stat-bar strong{font-size:22px;}
  .toast{width:calc(100% - 32px);text-align:center;}
}
@media (min-width:1440px){
  .wrap{padding:0 40px;}
}

/* roulang page: article */
:root{
  --brand-900:#0F3D30;
  --brand-700:#14503F;
  --brand-500:#1F7A5C;
  --accent-400:#C6F24E;
  --accent-600:#A8D62F;
  --ink-900:#16201C;
  --ink-600:#4C5B54;
  --ink-400:#7C8A83;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E4E0D6;
  --danger:#C24A3A;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(15,61,48,.04);
  --shadow-hover:0 10px 28px rgba(15,61,48,.10);
  --sp-1:8px;--sp-2:16px;--sp-3:24px;--sp-4:32px;--sp-5:48px;--sp-6:64px;--sp-7:88px;
  --font-cn:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--paper);
  font-feature-settings:"tnum";
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:var(--brand-700);text-decoration:none;transition:color .18s ease,border-color .18s ease}
a:hover{color:var(--brand-500)}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding-left:1.15em}
:focus-visible{outline:3px solid var(--accent-400);outline-offset:2px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}

/* ---------- 骨架 ---------- */
.shell{display:flex;min-height:100vh;align-items:stretch}
.main-area{flex:1 1 auto;min-width:0;display:flex;flex-direction:column}

/* ---------- 左侧导航 ---------- */
.side-nav{
  flex:0 0 248px;width:248px;background:var(--brand-900);color:var(--paper);
  position:sticky;top:0;height:100vh;overflow-y:auto;display:flex;flex-direction:column;
  padding:26px 18px 20px;
}
.brand-link{display:flex;align-items:center;gap:10px;color:inherit}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;background:var(--accent-400);
  color:var(--brand-900);font-weight:800;font-size:16px;letter-spacing:.02em;
  display:flex;align-items:center;justify-content:center;text-transform:uppercase;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:15px;font-weight:700;color:#fff;letter-spacing:.01em}
.brand-text em{font-style:normal;font-size:12px;color:rgba(247,244,238,.62);margin-top:2px}
.nav-block{margin-top:30px}
.nav-title{font-size:12px;letter-spacing:.14em;color:rgba(247,244,238,.5);margin-bottom:10px}
.nav-list{display:flex;flex-direction:column;gap:2px}
.nav-list a{
  display:flex;align-items:center;gap:10px;position:relative;
  padding:11px 12px;border-radius:var(--radius-btn);
  color:rgba(247,244,238,.82);font-size:15px;line-height:1.4;border-left:3px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.nav-list a i{width:16px;text-align:center;font-size:14px;color:rgba(198,242,78,.75)}
.nav-list a:hover{background:rgba(247,244,238,.08);color:#fff}
.nav-list a.is-active{background:rgba(198,242,78,.12);color:#fff;border-left-color:var(--accent-400);font-weight:600}
.nav-list a.is-active i{color:var(--accent-400)}
.side-search{margin-top:auto;padding-top:24px}
.side-search label{font-size:12px;letter-spacing:.1em;color:rgba(247,244,238,.5);display:block;margin-bottom:8px}
.search-row{display:flex;gap:8px}
.search-row input{
  flex:1 1 auto;min-width:0;height:44px;padding:0 12px;border-radius:var(--radius-btn);
  border:1px solid rgba(247,244,238,.22);background:rgba(247,244,238,.06);color:#fff;font-size:14px;
}
.search-row input::placeholder{color:rgba(247,244,238,.45)}
.search-row input:focus{outline:none;border-color:var(--accent-600);box-shadow:0 0 0 3px rgba(198,242,78,.28)}
.side-actions{display:flex;gap:8px;margin-top:12px}
.side-actions button{
  flex:1 1 0;height:40px;border-radius:var(--radius-btn);cursor:pointer;font-size:13px;font-weight:600;
  background:transparent;color:var(--paper);border:1px solid rgba(247,244,238,.26);
  display:inline-flex;align-items:center;justify-content:center;gap:6px;transition:all .18s ease;
}
.side-actions button:hover{border-color:var(--accent-400);color:var(--accent-400);transform:translateY(-1px)}
.side-actions button:active{transform:none}
.side-note{margin-top:16px;font-size:12px;line-height:1.7;color:rgba(247,244,238,.5)}

/* ---------- 移动端顶栏 ---------- */
.mobile-head{
  display:none;position:sticky;top:0;z-index:70;height:60px;align-items:center;justify-content:space-between;
  padding:0 16px;background:var(--brand-900);color:#fff;box-shadow:0 1px 0 rgba(0,0,0,.12);
}
.mobile-head .brand-text strong{font-size:14px}
.nav-toggle{
  width:42px;height:42px;border-radius:var(--radius-btn);background:rgba(247,244,238,.08);
  border:1px solid rgba(247,244,238,.24);color:var(--paper);font-size:16px;cursor:pointer;
}
.nav-toggle:hover{border-color:var(--accent-400);color:var(--accent-400)}
.drawer-mask{display:none;position:fixed;inset:0;background:rgba(15,61,48,.45);z-index:55}
.drawer-mask.is-on{display:block}

/* ---------- 进度条 ---------- */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;background:var(--accent-400);z-index:90;transition:width .1s linear}

/* ---------- 文章头 ---------- */
.article-hero{
  background-image:linear-gradient(rgba(15,61,48,.92),rgba(15,61,48,.86)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;color:var(--paper);
  padding:56px 0 48px;
}
.crumbs{font-size:13px;color:rgba(247,244,238,.7);display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.crumbs a{color:rgba(247,244,238,.82)}
.crumbs a:hover{color:var(--accent-400)}
.crumbs span.sep{color:rgba(247,244,238,.4)}
.crumbs .now{color:#fff;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-hero h1{
  font-size:40px;font-weight:800;line-height:1.2;letter-spacing:-.01em;margin-top:20px;color:#fff;max-width:900px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:22px;font-size:13px;color:rgba(247,244,238,.78)}
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;line-height:1.6;
}
.badge-accent{background:var(--accent-400);color:var(--brand-900)}
.badge-ghost{background:rgba(247,244,238,.14);color:#fff;border:1px solid rgba(247,244,238,.28)}
.badge-soft{background:rgba(31,122,92,.10);color:var(--brand-700);border:1px solid rgba(31,122,92,.18)}
.divider-line{height:1px;background:rgba(247,244,238,.2);margin-top:26px}

/* ---------- 正文布局 ---------- */
.article-body{padding:56px 0 88px;background:var(--paper)}
.article-grid{display:grid;grid-template-columns:minmax(0,1fr);gap:48px}
.article-main{min-width:0}
.prose{max-width:760px;font-size:16px;line-height:1.9;color:var(--ink-900)}
.prose p{margin-bottom:1.1em}
.prose h2{
  font-size:28px;font-weight:700;line-height:1.3;margin:2.1em 0 .85em;padding-left:16px;position:relative;
}
.prose h2::before{content:"";position:absolute;left:0;top:.28em;width:4px;height:24px;background:var(--accent-400);border-radius:2px}
.prose h3{font-size:20px;font-weight:600;line-height:1.45;margin:1.7em 0 .7em;color:var(--brand-900)}
.prose ul,.prose ol{margin:0 0 1.2em;padding-left:1.2em}
.prose li{margin-bottom:.5em;line-height:1.8}
.prose ul li::marker{color:var(--brand-500)}
.prose ol li::marker{color:var(--brand-500);font-weight:600}
.prose blockquote{
  margin:1.6em 0;padding:16px 20px;border-left:4px solid var(--accent-400);
  background:var(--surface);border-radius:0 var(--radius-card) var(--radius-card) 0;color:var(--ink-600);
}
.prose img{margin:1.6em 0;width:100%;height:auto}
.prose figcaption{font-size:13px;color:var(--ink-400);text-align:center;margin-top:-.9em;margin-bottom:1.6em}
.prose table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.prose th,.prose td{padding:11px 14px;border:1px solid var(--line);text-align:left}
.prose th{background:var(--brand-900);color:var(--paper);font-weight:600}
.prose tbody tr:nth-child(even){background:var(--paper)}
.prose a{border-bottom:2px solid rgba(198,242,78,.8)}
.prose a:hover{border-bottom-color:var(--brand-500)}
.prose pre{background:#10261f;color:#e9f5ee;padding:18px;border-radius:var(--radius-card);overflow:auto;font-size:14px}

/* ---------- 右侧目录 ---------- */
.article-side{display:flex;flex-direction:column;gap:20px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-card);
}
.side-card h3{font-size:15px;font-weight:700;color:var(--brand-900);margin-bottom:14px;padding-left:12px;position:relative}
.side-card h3::before{content:"";position:absolute;left:0;top:.35em;width:4px;height:16px;background:var(--accent-400);border-radius:2px}
.toc-list{list-style:none;padding:0;margin:0;font-size:14px}
.toc-list li{margin-bottom:9px;line-height:1.6}
.toc-list a{color:var(--ink-600);display:block;padding-left:12px;border-left:2px solid var(--line);transition:all .18s ease}
.toc-list a:hover{color:var(--brand-700);border-left-color:var(--accent-400);padding-left:16px}
.side-actions-2{display:flex;flex-direction:column;gap:10px}
.sticky-box{position:sticky;top:24px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;cursor:pointer;
  border:1px solid transparent;transition:transform .16s ease,box-shadow .16s ease,background .16s ease,color .16s ease,border-color .16s ease;
}
.btn-primary{background:var(--brand-900);color:var(--paper);box-shadow:inset 0 0 0 2px var(--accent-400)}
.btn-primary:hover{background:var(--accent-400);color:var(--brand-900);transform:translateY(-2px);box-shadow:0 10px 24px rgba(15,61,48,.18)}
.btn-primary:active{transform:none}
.btn-ghost{background:transparent;border-color:var(--line);color:var(--brand-900)}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-500);transform:translateY(-2px)}
.btn-ghost:active{transform:none}
.btn-sm{height:40px;padding:0 16px;font-size:14px}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-700);position:relative;padding-bottom:2px}
.link-more::after{content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent-400);transition:width .16s ease}
.link-more:hover::after{width:100%}

/* ---------- 文章结尾 ---------- */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin:44px 0 0;padding-top:26px;border-top:1px solid var(--line)}
.tag{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:var(--radius-pill);background:var(--surface);border:1px solid var(--line);font-size:13px;color:var(--ink-600)}
.tag:hover{border-color:var(--accent-600);color:var(--brand-700)}
.end-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

/* ---------- 相关推荐 ---------- */
.related{margin-top:64px}
.sec-head{margin-bottom:24px}
.sec-head h2{font-size:28px;font-weight:700;line-height:1.3;padding-left:16px;position:relative;color:var(--ink-900)}
.sec-head h2::before{content:"";position:absolute;left:0;top:.28em;width:4px;height:24px;background:var(--accent-400);border-radius:2px}
.sec-head p{margin-top:8px;font-size:14px;color:var(--ink-400)}
.rel-card{
  display:flex;gap:16px;align-items:center;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:16px;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;height:100%;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:rgba(31,122,92,.28)}
.rel-thumb{flex:0 0 108px;width:108px;aspect-ratio:4/3;overflow:hidden;border-radius:var(--radius-img)}
.rel-thumb img{width:100%;height:100%;object-fit:cover}
.rel-body h3{font-size:16px;font-weight:600;line-height:1.5;color:var(--ink-900)}
.rel-body p{font-size:13px;color:var(--ink-400);margin-top:6px;line-height:1.7}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand-900);color:var(--paper);border-radius:var(--radius-card);
  padding:40px;display:flex;flex-wrap:wrap;gap:28px;align-items:center;justify-content:space-between;margin-top:64px;
}
.cta-band h2{font-size:26px;font-weight:700;line-height:1.35;color:#fff}
.cta-band p{margin-top:10px;font-size:14px;color:rgba(247,244,238,.75);max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}
.btn-on-dark{background:var(--accent-400);color:var(--brand-900);border-color:transparent}
.btn-on-dark:hover{background:var(--paper);color:var(--brand-900);transform:translateY(-2px)}
.btn-outline-light{background:transparent;border-color:rgba(247,244,238,.4);color:var(--paper)}
.btn-outline-light:hover{border-color:var(--accent-400);color:var(--accent-400);transform:translateY(-2px)}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:48px 24px;text-align:center;max-width:760px;
}
.empty-state .empty-mark{
  width:64px;height:64px;margin:0 auto 18px;border-radius:var(--radius-card);
  background:repeating-linear-gradient(45deg,#14503F,#14503F 8px,#1F7A5C 8px,#1F7A5C 16px);
}
.empty-state h2{font-size:22px;font-weight:700;color:var(--ink-900)}
.empty-state p{margin-top:10px;font-size:14px;color:var(--ink-400)}

/* ---------- 提示条 ---------- */
.toast{
  position:fixed;left:50%;bottom:32px;transform:translate(-50%,20px);opacity:0;pointer-events:none;
  background:var(--brand-900);color:var(--paper);padding:12px 22px;border-radius:var(--radius-pill);
  font-size:14px;z-index:120;transition:opacity .2s ease,transform .2s ease;border:1px solid rgba(198,242,78,.5);
}
.toast.is-on{opacity:1;transform:translate(-50%,0)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:var(--paper);padding:64px 0 26px;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand strong{font-size:16px;color:#fff;font-weight:700}
.footer-about{font-size:14px;line-height:1.85;color:rgba(247,244,238,.7);max-width:340px}
.site-footer h3{font-size:14px;font-weight:600;color:#fff;padding-bottom:10px;position:relative;margin-bottom:16px}
.site-footer h3::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:3px;background:var(--accent-400);border-radius:2px}
.footer-list,.footer-contact{list-style:none;padding:0;margin:0;font-size:14px}
.footer-list li{margin-bottom:10px}
.footer-list a{color:rgba(247,244,238,.72);display:inline-block;transition:transform .16s ease,color .16s ease}
.footer-list a:hover{color:var(--accent-400);transform:translateX(2px)}
.footer-contact li{margin-bottom:10px;color:rgba(247,244,238,.72);display:flex;gap:9px;align-items:flex-start}
.footer-contact i{color:var(--accent-400);margin-top:5px}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(247,244,238,.16);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:rgba(247,244,238,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .article-grid{gap:36px}
}
@media (max-width:1023px){
  .shell{display:block}
  .mobile-head{display:flex}
  .side-nav{
    position:fixed;top:0;left:0;right:0;bottom:0;width:100%;height:100%;z-index:60;
    background:var(--paper);color:var(--ink-900);transform:translateX(-100%);
    transition:transform .24s ease;padding:22px 18px 32px;
  }
  .side-nav.is-open{transform:translateX(0)}
  .side-nav .brand-link{color:var(--brand-900)}
  .side-nav .brand-text strong{color:var(--brand-900);font-size:16px}
  .side-nav .brand-text em{color:var(--ink-400)}
  .side-nav .nav-title{color:var(--ink-400)}
  .side-nav .nav-list a{color:var(--ink-600);font-size:17px;min-height:56px;padding:14px 12px}
  .side-nav .nav-list a i{color:var(--brand-500)}
  .side-nav .nav-list a:hover{background:rgba(31,122,92,.08);color:var(--brand-900)}
  .side-nav .nav-list a.is-active{background:rgba(198,242,78,.22);color:var(--brand-900);border-left-color:var(--accent-400)}
  .side-nav .side-search label{color:var(--ink-400)}
  .side-nav .search-row input{background:var(--surface);border-color:var(--line);color:var(--ink-900)}
  .side-nav .search-row input::placeholder{color:var(--ink-400)}
  .side-nav .side-actions button{color:var(--brand-900);border-color:var(--line);background:var(--surface)}
  .side-nav .side-actions button:hover{border-color:var(--accent-600);color:var(--brand-700)}
  .side-nav .side-note{color:var(--ink-400)}
  .article-hero{padding:40px 0 36px}
  .article-hero h1{font-size:32px}
  .article-body{padding:40px 0 72px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .wrap{padding:0 16px}
  body{font-size:15px;line-height:1.9}
  .article-hero h1{font-size:26px;line-height:1.3}
  .article-body{padding:32px 0 60px}
  .article-grid{gap:32px}
  .prose h2{font-size:22px}
  .prose h3{font-size:18px}
  .cta-band{padding:28px 20px}
  .cta-band h2{font-size:21px}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:8px}
  .site-footer{padding:48px 0 22px}
  .rel-card{flex-direction:row}
  .rel-thumb{flex:0 0 92px;width:92px}
}
@media (max-width:519px){
  .rel-card{flex-direction:column;align-items:stretch}
  .rel-thumb{width:100%;flex:none;aspect-ratio:16/9}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .meta-row{gap:8px}
}

/* roulang page: category1 */
:root{
  --brand-900:#0F3D30;
  --brand-700:#14503F;
  --brand-500:#1F7A5C;
  --accent-400:#C6F24E;
  --accent-600:#A8D62F;
  --ink-900:#16201C;
  --ink-600:#4C5B54;
  --ink-400:#7C8A83;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E4E0D6;
  --danger:#C24A3A;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-pill:999px;
  --font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  --shadow-card:0 1px 2px rgba(15,61,48,.04);
  --shadow-hover:0 10px 28px rgba(15,61,48,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .16s ease,transform .16s ease}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
input{font:inherit}
:focus-visible{outline:3px solid var(--accent-400);outline-offset:2px;border-radius:4px}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 布局骨架 ---------- */
.layout{display:block;min-height:100vh}
.main-col{min-width:0;background:var(--paper)}
@media (min-width:1024px){
  .layout{display:grid;grid-template-columns:248px minmax(0,1fr)}
}

/* ---------- 侧栏导航（桌面） ---------- */
.side-nav{display:none}
@media (min-width:1024px){
  .side-nav{
    display:flex;flex-direction:column;gap:24px;
    position:sticky;top:0;height:100vh;overflow-y:auto;
    background:var(--brand-900);color:#F7F4EE;
    padding:26px 18px 20px;
  }
}
.side-brand{display:flex;align-items:center;gap:10px;padding:0 6px 18px;border-bottom:1px solid rgba(247,244,238,.14)}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:var(--accent-400);color:var(--brand-900);
  font-weight:800;font-size:15px;letter-spacing:.02em;
}
.side-brand strong{font-size:15px;font-weight:700;line-height:1.35;color:#FFFFFF}
.nav-list{display:flex;flex-direction:column;gap:4px}
.nav-list a{
  display:flex;align-items:center;gap:10px;
  padding:11px 12px;border-radius:var(--radius-btn);
  border-left:3px solid transparent;
  color:rgba(247,244,238,.76);font-size:15px;line-height:1.4;
}
.nav-list a i{width:18px;text-align:center;color:rgba(198,242,78,.65);font-size:14px}
.nav-list a:hover{background:rgba(255,255,255,.07);color:#FFFFFF}
.nav-list a.is-active{
  background:rgba(255,255,255,.10);
  border-left-color:var(--accent-400);
  color:#FFFFFF;font-weight:600;
}
.nav-list a.is-active i{color:var(--accent-400)}
.side-search label{display:block;font-size:12px;font-weight:600;color:rgba(247,244,238,.55);margin-bottom:8px}
.side-search input{
  width:100%;height:44px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid rgba(247,244,238,.22);background:rgba(255,255,255,.06);
  color:#FFFFFF;
}
.side-search input::placeholder{color:rgba(247,244,238,.5)}
.side-search input:focus{border-color:var(--accent-600);outline:3px solid rgba(198,242,78,.35);outline-offset:1px;background:rgba(255,255,255,.10)}
.side-actions{display:flex;gap:8px}
.side-actions button{
  flex:1;display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:40px;border-radius:var(--radius-btn);
  border:1px solid rgba(247,244,238,.24);color:rgba(247,244,238,.85);font-size:13px;
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.side-actions button:hover{background:rgba(198,242,78,.14);border-color:var(--accent-400);color:#FFFFFF}
.side-actions button:active{transform:translateY(1px)}
.side-foot{margin-top:auto;font-size:12px;line-height:1.7;color:rgba(247,244,238,.48);border-top:1px solid rgba(247,244,238,.14);padding-top:16px}

/* ---------- 移动端顶栏与抽屉 ---------- */
.mobile-bar{
  position:sticky;top:0;z-index:60;height:60px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;background:var(--brand-900);color:#FFFFFF;
  box-shadow:0 2px 10px rgba(15,61,48,.18);
}
.mobile-bar .brand-mini{display:flex;align-items:center;gap:9px;font-size:15px;font-weight:700}
.mobile-bar .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:13px;border-radius:9px}
.nav-toggle{
  width:42px;height:42px;border-radius:var(--radius-btn);
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid rgba(247,244,238,.28);color:#FFFFFF;font-size:16px;
}
.nav-toggle:hover{background:rgba(255,255,255,.10)}
.nav-toggle:active{transform:translateY(1px)}
@media (min-width:1024px){
  .mobile-bar{display:none}
}
.drawer{
  position:fixed;inset:0;z-index:80;background:var(--paper);
  transform:translateX(102%);transition:transform .22s ease;
  overflow-y:auto;padding:18px 18px 40px;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-head strong{font-size:16px}
.drawer-close{width:40px;height:40px;border-radius:var(--radius-btn);border:1px solid var(--line);background:var(--surface);display:inline-flex;align-items:center;justify-content:center}
.drawer .nav-list a{
  color:var(--ink-600);border-left:3px solid transparent;font-size:17px;line-height:1.3;padding:16px 14px;
  border-bottom:1px solid var(--line);border-radius:0;
}
.drawer .nav-list a i{color:var(--brand-500)}
.drawer .nav-list a.is-active{background:rgba(198,242,78,.18);border-left-color:var(--accent-600);color:var(--brand-900);font-weight:700}
.drawer-search{margin:22px 0 18px}
.drawer-search input{
  width:100%;height:44px;padding:0 14px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:var(--surface);color:var(--ink-900);
}
.drawer-search input::placeholder{color:var(--ink-400)}
.drawer-search input:focus{border-color:var(--accent-600);outline:3px solid rgba(198,242,78,.45);outline-offset:1px}

/* ---------- 页面页头 ---------- */
.page-hero{
  position:relative;min-height:264px;display:flex;align-items:flex-end;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  color:#F7F4EE;overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(15,61,48,.78) 0%,rgba(15,61,48,.92) 100%);
}
.hero-inner{position:relative;z-index:2;padding-top:44px;padding-bottom:30px}
.crumbs{font-size:13px;color:rgba(247,244,238,.72);display:flex;align-items:center;gap:8px;margin-bottom:14px}
.crumbs a:hover{color:var(--accent-400)}
.crumbs .sep{color:rgba(247,244,238,.4)}
.page-hero h1{font-size:32px;line-height:1.22;font-weight:800;letter-spacing:-.01em;color:#FFFFFF}
.hero-sub{margin:12px 0 0;font-size:15px;color:rgba(247,244,238,.86);max-width:620px}
.hero-anchors{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.hero-anchors a{
  display:inline-block;padding:6px 14px;border-radius:var(--radius-pill);
  font-size:13px;font-weight:600;color:#F7F4EE;
  border:1px solid rgba(198,242,78,.45);background:rgba(198,242,78,.10);
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.hero-anchors a:hover{background:var(--accent-400);color:var(--brand-900);border-color:var(--accent-400)}
@media (min-width:640px){
  .page-hero h1{font-size:38px}
}
@media (min-width:1024px){
  .page-hero{min-height:276px}
  .page-hero h1{font-size:40px;line-height:1.2}
}

/* ---------- 板块通用 ---------- */
.section{padding:56px 0 0}
.section:last-of-type{padding-bottom:56px}
@media (min-width:640px){.section{padding-top:72px}.section:last-of-type{padding-bottom:72px}}
@media (min-width:1024px){.section{padding-top:88px}.section:last-of-type{padding-bottom:96px}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:12px;margin-bottom:28px}
.section-head h2{font-size:24px;line-height:1.3;font-weight:700;position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.36em;width:4px;height:24px;border-radius:2px;background:var(--accent-600);
}
.section-head p{margin:0;font-size:14px;color:var(--ink-400);max-width:560px}
@media (min-width:640px){.section-head h2{font-size:28px;line-height:1.3}}

/* ---------- 数据条 ---------- */
.stat-row{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 18px;box-shadow:var(--shadow-card);
}
.stat{display:flex;flex-direction:column;gap:2px;padding:6px 4px}
.stat strong{font-size:26px;font-weight:800;color:var(--brand-700);line-height:1.1}
.stat span{font-size:13px;color:var(--ink-400)}
@media (min-width:768px){
  .stat-row{grid-template-columns:repeat(4,minmax(0,1fr));padding:24px}
  .stat{border-left:1px solid var(--line);padding-left:18px}
  .stat:first-child{border-left:0;padding-left:4px}
}

/* ---------- 条目卡网格 ---------- */
.entry-grid{display:grid;grid-template-columns:1fr;gap:20px;align-items:start}
@media (min-width:768px){
  .entry-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
}
.entry-card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.entry-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#D8D3C6}
.entry-card:active{transform:translateY(0)}
.card-media{aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,var(--brand-700),var(--brand-500))}
.entry-card.is-tall .card-media{aspect-ratio:4/3}
.card-media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease}
.entry-card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:18px 18px 20px;display:flex;flex-direction:column;gap:10px}
@media (min-width:1024px){.card-body{padding:24px}}
.card-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tag{
  display:inline-block;padding:3px 10px;border-radius:var(--radius-pill);
  font-size:12px;font-weight:600;line-height:1.6;
  background:rgba(198,242,78,.22);color:var(--brand-700);
}
.meta-num{font-size:13px;color:var(--ink-400)}
.card-body h3{font-size:19px;line-height:1.45;font-weight:600}
.card-body p{font-size:14px;line-height:1.8;color:var(--ink-600);margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.link-more{
  position:relative;align-self:flex-start;margin-top:2px;
  font-size:14px;font-weight:600;color:var(--brand-700);
  display:inline-flex;align-items:center;gap:6px;padding-bottom:3px;
}
.link-more::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;background:var(--accent-600);
  transition:width .16s ease;
}
.link-more:hover{color:var(--brand-500)}
.link-more:hover::after{width:100%}

/* ---------- 时间线 ---------- */
.timeline{position:relative;margin-top:4px;padding-left:26px}
.timeline::before{content:"";position:absolute;left:7px;top:8px;bottom:8px;width:2px;background:var(--line)}
.timeline li{position:relative;padding:0 0 24px 8px}
.timeline li:last-child{padding-bottom:0}
.tl-dot{
  position:absolute;left:-25px;top:7px;width:12px;height:12px;border-radius:50%;
  background:var(--accent-400);border:2px solid var(--brand-900);
}
.timeline h3{font-size:17px;font-weight:600;line-height:1.5}
.timeline p{font-size:14px;color:var(--ink-600);margin:4px 0 0;max-width:640px}
.timeline .tl-time{font-size:13px;color:var(--ink-400);display:block;margin-top:2px}

/* ---------- 相关分类互链 ---------- */
.cross-links{display:grid;grid-template-columns:1fr;gap:12px}
@media (min-width:768px){.cross-links{grid-template-columns:repeat(3,minmax(0,1fr))}}
.cross-links a{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 20px;box-shadow:var(--shadow-card);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease,background .18s ease;
}
.cross-links a:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:var(--accent-600);background:#FCFBF7}
.cross-links a:active{transform:translateY(0)}
.cross-links .cl-text strong{display:block;font-size:16px;font-weight:600}
.cross-links .cl-text span{font-size:13px;color:var(--ink-400)}
.cross-links i{color:var(--brand-500);font-size:14px}

/* ---------- 收藏 / 分享 CTA ---------- */
.cta-band{
  background:var(--brand-900);color:#F7F4EE;border-radius:var(--radius-card);
  padding:28px 22px;display:flex;flex-direction:column;gap:20px;
}
.cta-band h2{font-size:22px;font-weight:700;color:#FFFFFF;line-height:1.35}
.cta-band p{margin:8px 0 0;font-size:14px;color:rgba(247,244,238,.78);max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:10px}
@media (min-width:1024px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:36px 40px}
  .cta-band h2{font-size:26px}
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .16s ease,background .16s ease,color .16s ease,border-color .16s ease,box-shadow .16s ease;
}
.btn-primary{background:var(--brand-900);color:#F7F4EE;border:2px solid var(--accent-400)}
.btn-primary:hover{background:var(--accent-400);color:var(--brand-900);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:#F7F4EE;border:1px solid rgba(247,244,238,.45)}
.btn-ghost:hover{border-color:var(--accent-400);color:var(--accent-400)}
.btn-ghost:active{transform:translateY(1px)}
.btn-outline{background:transparent;color:var(--brand-700);border:1px solid var(--line)}
.btn-outline:hover{border-color:var(--brand-500);color:var(--brand-900);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-left:3px solid transparent;
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{box-shadow:var(--shadow-hover)}
.faq-item.is-open{border-left-color:var(--accent-600)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;text-align:left;font-size:16px;font-weight:600;line-height:1.6;color:var(--ink-900);
}
.faq-q i{color:var(--brand-500);font-size:13px;transition:transform .18s ease}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.8;color:var(--ink-600);margin:0}
@media (min-width:1024px){.faq-q{padding:20px 24px}.faq-a p{padding:0 24px 22px}}

/* ---------- Toast ---------- */
.toast{
  position:fixed;left:50%;bottom:28px;transform:translate(-50%,20px);
  background:var(--brand-900);color:#F7F4EE;font-size:14px;
  padding:12px 22px;border-radius:var(--radius-pill);
  border:1px solid rgba(198,242,78,.5);
  opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;z-index:120;
}
.toast.is-visible{opacity:1;transform:translate(-50%,0)}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--brand-900);color:#F7F4EE;margin-top:56px;padding:48px 0 0}
@media (min-width:1024px){.site-footer{margin-top:96px;padding-top:64px}}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-brand strong{font-size:16px;font-weight:700;color:#FFFFFF}
.footer-about{font-size:14px;line-height:1.8;color:rgba(247,244,238,.72);margin:0}
.site-footer h3{
  font-size:14px;font-weight:600;color:#FFFFFF;margin-bottom:16px;position:relative;padding-bottom:12px;
}
.site-footer h3::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--accent-400)}
.footer-list,.footer-contact{display:flex;flex-direction:column;gap:10px}
.footer-list a{font-size:14px;color:rgba(247,244,238,.75)}
.footer-list a:hover{color:var(--accent-400);transform:translateX(2px)}
.footer-contact li{font-size:14px;color:rgba(247,244,238,.75);display:flex;gap:8px;align-items:flex-start}
.footer-contact i{color:rgba(198,242,78,.7);margin-top:5px;font-size:12px}
.footer-bottom{
  margin-top:36px;padding:20px 0 28px;border-top:1px solid rgba(247,244,238,.14);
  display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;
  font-size:13px;color:rgba(247,244,238,.55);
}

/* roulang page: category2 */
:root{
  --brand-900:#0F3D30;
  --brand-700:#14503F;
  --brand-500:#1F7A5C;
  --accent-400:#C6F24E;
  --accent-600:#A8D62F;
  --ink-900:#16201C;
  --ink-600:#4C5B54;
  --ink-400:#7C8A83;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E4E0D6;
  --danger:#C24A3A;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(15,61,48,.04);
  --shadow-hover:0 10px 28px rgba(15,61,48,.10);
  --nav-w:248px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--paper);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .16s ease;}
a:hover{color:var(--brand-500);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;color:var(--ink-900);}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
button{font-family:inherit;}
input,button,select,textarea{font-size:inherit;}
:focus-visible{outline:3px solid var(--accent-400);outline-offset:2px;border-radius:6px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ---------- 左侧竖向导航 ---------- */
.side-nav{
  background:var(--brand-900);
  color:var(--paper);
  z-index:70;
}
.nav-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--paper);
}
.brand:hover{color:var(--accent-400);}
.brand-mark{
  width:36px;height:36px;
  flex:0 0 auto;
  border-radius:10px;
  background:var(--accent-400);
  color:var(--brand-900);
  font-weight:800;
  font-size:14px;
  letter-spacing:.02em;
  display:grid;
  place-items:center;
}
.brand-text{
  font-size:15px;
  font-weight:700;
  line-height:1.3;
  letter-spacing:.01em;
}
.nav-toggle{
  width:40px;height:40px;
  border:1px solid rgba(247,244,238,.28);
  border-radius:10px;
  background:transparent;
  color:var(--paper);
  cursor:pointer;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:border-color .16s ease,color .16s ease,background .16s ease;
}
.nav-toggle:hover{border-color:var(--accent-400);color:var(--accent-400);}
.nav-toggle:active{transform:translateY(1px);}
.nav-list{display:flex;flex-direction:column;gap:4px;}
.nav-list a{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  padding:12px 14px;
  border-radius:10px;
  font-size:15px;
  color:rgba(247,244,238,.78);
  transition:background .16s ease,color .16s ease;
}
.nav-list a i{width:18px;text-align:center;font-size:14px;opacity:.85;}
.nav-list a:hover{background:rgba(247,244,238,.08);color:#fff;}
.nav-list a.is-active{background:rgba(247,244,238,.13);color:#fff;font-weight:600;}
.nav-list a.is-active::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:3px;height:20px;
  border-radius:2px;
  background:var(--accent-400);
}
.nav-search{display:flex;gap:8px;}
.nav-search input{
  flex:1 1 auto;
  min-width:0;
  height:44px;
  padding:0 12px;
  border-radius:var(--radius-btn);
  border:1px solid rgba(247,244,238,.22);
  background:rgba(247,244,238,.06);
  color:var(--paper);
  transition:border-color .16s ease,box-shadow .16s ease,background .16s ease;
}
.nav-search input::placeholder{color:rgba(247,244,238,.55);}
.nav-search input:focus{
  outline:none;
  border-color:var(--accent-600);
  background:rgba(247,244,238,.12);
  box-shadow:0 0 0 3px rgba(198,242,78,.35);
}
.nav-search .btn{height:44px;}
.nav-actions{display:flex;flex-wrap:wrap;gap:8px;}
.nav-foot{
  font-size:12px;
  line-height:1.7;
  color:rgba(247,244,238,.52);
}
.nav-note{margin-top:6px;display:block;color:rgba(247,244,238,.4);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 20px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  text-align:center;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn:active{transform:translateY(0);}
.btn-primary{
  background:var(--brand-900);
  color:var(--paper);
  box-shadow:inset 0 0 0 2px var(--accent-400);
}
.btn-primary:hover{
  background:var(--accent-400);
  color:var(--brand-900);
  transform:translateY(-2px);
  box-shadow:0 10px 28px rgba(15,61,48,.18);
}
.btn-ghost{
  background:transparent;
  border-color:var(--line);
  color:var(--brand-900);
}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-700);transform:translateY(-2px);}
.btn-ghost-light{
  background:transparent;
  border-color:rgba(247,244,238,.34);
  color:var(--paper);
}
.btn-ghost-light:hover{
  border-color:var(--accent-400);
  color:var(--accent-400);
  transform:translateY(-2px);
}
.btn-accent{
  background:var(--accent-400);
  border-color:var(--accent-600);
  color:var(--brand-900);
}
.btn-accent:hover{background:var(--accent-600);color:var(--brand-900);transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 14px;font-size:14px;}

/* ---------- 正文容器 ---------- */
.content{
  padding:24px 16px 0;
  min-width:0;
}
.content-inner{max-width:1080px;margin:0 auto;}

/* ---------- 页头封面条 ---------- */
.page-hero{
  position:relative;
  min-height:260px;
  border-radius:var(--radius-card);
  overflow:hidden;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  display:flex;
  align-items:flex-end;
  box-shadow:var(--shadow-card);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(15,61,48,.88);
}
.hero-inner{
  position:relative;
  z-index:1;
  padding:32px 28px;
  color:var(--paper);
  width:100%;
}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
  padding:6px 12px;
  border-radius:var(--radius-pill);
  background:rgba(198,242,78,.16);
  color:var(--accent-400);
  margin-bottom:14px;
}
.page-hero h1{
  font-size:32px;
  line-height:1.25;
  font-weight:800;
  color:#fff;
  margin-bottom:10px;
}
.hero-sub{
  font-size:15px;
  color:rgba(247,244,238,.82);
  max-width:44em;
  margin:0 0 18px;
}
.anchor-nav{display:flex;flex-wrap:wrap;gap:8px;}
.anchor-nav a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:34px;
  padding:0 14px;
  border-radius:var(--radius-pill);
  border:1px solid rgba(247,244,238,.28);
  font-size:13px;
  color:rgba(247,244,238,.9);
  transition:border-color .16s ease,color .16s ease,background .16s ease;
}
.anchor-nav a:hover{border-color:var(--accent-400);color:var(--accent-400);background:rgba(198,242,78,.08);}

/* ---------- 统计条 ---------- */
.stat-strip{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:12px;
  margin-top:24px;
}
.stat{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:18px;
}
.stat strong{
  display:block;
  font-size:26px;
  font-weight:800;
  color:var(--brand-900);
  line-height:1.2;
}
.stat span{font-size:13px;color:var(--ink-400);}

/* ---------- 通用板块 ---------- */
.section{margin-top:56px;}
.section-head{margin-bottom:24px;}
.section-head h2{
  position:relative;
  padding-left:16px;
  font-size:24px;
  line-height:1.3;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:50%;
  transform:translateY(-50%);
  width:4px;height:24px;
  border-radius:2px;
  background:var(--accent-400);
}
.section-sub{
  margin:10px 0 0;
  font-size:14px;
  color:var(--ink-600);
  max-width:46em;
}

/* ---------- 条目卡网格 ---------- */
.card-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
.card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  border-color:#D6E2C8;
}
.card-media{
  aspect-ratio:16/9;
  overflow:hidden;
  background:var(--brand-700);
}
.card--tall .card-media{aspect-ratio:4/3;}
.card-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:0;
  transition:transform .3s ease;
}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:18px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-body h3{font-size:19px;font-weight:600;line-height:1.35;}
.card-body p{
  margin:0;
  font-size:14px;
  line-height:1.8;
  color:var(--ink-600);
}
.badge-row{display:flex;flex-wrap:wrap;gap:6px;}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:var(--radius-pill);
  font-size:12px;
  font-weight:600;
  background:rgba(31,122,92,.10);
  color:var(--brand-700);
}
.badge--accent{background:rgba(198,242,78,.28);color:#3E5210;}
.text-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:6px;
  align-self:flex-start;
  font-size:14px;
  font-weight:600;
  color:var(--brand-900);
  padding-bottom:2px;
}
.text-link::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:0;height:2px;
  background:var(--accent-400);
  transition:width .16s ease;
}
.text-link:hover{color:var(--brand-700);}
.text-link:hover::after{width:100%;}

/* ---------- 双栏对照 ---------- */
.compare{
  display:grid;
  grid-template-columns:1fr;
  gap:20px;
}
.compare-col{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:22px;
}
.compare-col h3{
  font-size:18px;
  font-weight:600;
  margin-bottom:14px;
  padding-bottom:12px;
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:center;
  gap:8px;
}
.compare-col h3 i{color:var(--brand-500);}
.check-list li{
  position:relative;
  padding-left:20px;
  margin-bottom:12px;
  font-size:14.5px;
  line-height:1.8;
  color:var(--ink-600);
}
.check-list li:last-child{margin-bottom:0;}
.check-list li::before{
  content:"";
  position:absolute;
  left:2px;top:.72em;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--brand-500);
}

/* ---------- 步骤清单 ---------- */
.step-list{display:grid;gap:14px;}
.step-list li{
  display:flex;
  gap:16px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:18px;
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.step-list li:hover{border-color:#D6E2C8;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.step-num{
  flex:0 0 auto;
  width:44px;height:44px;
  border-radius:12px;
  background:var(--paper);
  border:1px solid var(--line);
  color:var(--brand-900);
  font-weight:800;
  font-size:15px;
  display:grid;
  place-items:center;
}
.step-list h3{font-size:16.5px;font-weight:600;margin-bottom:6px;}
.step-list p{margin:0;font-size:14px;line-height:1.8;color:var(--ink-600);}

/* ---------- 相关分类互链 ---------- */
.link-rows{display:grid;gap:12px;}
.link-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:16px 20px;
  color:var(--ink-900);
  font-weight:600;
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease,background .18s ease;
}
.link-row small{
  display:block;
  font-weight:400;
  font-size:13px;
  color:var(--ink-400);
  margin-top:2px;
}
.link-row i{color:var(--brand-500);transition:transform .18s ease,color .18s ease;}
.link-row:hover{
  border-color:#D6E2C8;
  background:var(--paper);
  transform:translateY(-2px);
  box-shadow:var(--shadow-hover);
  color:var(--brand-900);
}
.link-row:hover i{transform:translateX(4px);color:var(--brand-700);}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  margin-top:56px;
  background:var(--brand-900);
  border-radius:var(--radius-card);
  padding:32px 24px;
  color:var(--paper);
}
.cta-band h2{font-size:22px;color:#fff;margin-bottom:8px;}
.cta-band p{margin:0;font-size:14.5px;color:rgba(247,244,238,.8);}
.cta-inner{display:grid;gap:20px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:border-color .18s ease;
}
.faq-item summary{
  cursor:pointer;
  list-style:none;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--ink-900);
  transition:background .16s ease,color .16s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{background:var(--paper);}
.faq-arrow{
  flex:0 0 auto;
  width:9px;height:9px;
  border-right:2px solid var(--brand-700);
  border-bottom:2px solid var(--brand-700);
  transform:rotate(45deg);
  transition:transform .18s ease;
  margin-right:6px;
}
.faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.8;color:var(--ink-600);}
.faq-item[open]{border-color:var(--accent-600);}
.faq-item[open] summary{border-left:3px solid var(--accent-400);padding-left:19px;}
.faq-item[open] .faq-arrow{transform:rotate(-135deg);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:88px;
  background:var(--brand-900);
  color:var(--paper);
  padding-top:56px;
}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;}
.footer-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:32px;
  padding-bottom:40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand strong{font-size:15.5px;color:#fff;}
.site-footer h3{
  font-size:14px;
  font-weight:600;
  color:#fff;
  margin:0 0 16px;
}
.site-footer h3::after{
  content:"";
  display:block;
  width:24px;height:3px;
  border-radius:2px;
  background:var(--accent-400);
  margin-top:10px;
}
.footer-about{
  font-size:14px;
  line-height:1.85;
  color:rgba(247,244,238,.72);
  margin:0;
  max-width:34em;
}
.footer-list,.footer-contact{display:grid;gap:10px;}
.footer-list a,.footer-contact li{
  font-size:14px;
  color:rgba(247,244,238,.75);
}
.footer-list a{display:inline-block;transition:color .16s ease,transform .16s ease;}
.footer-list a:hover{color:var(--accent-400);transform:translateX(2px);}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;line-height:1.7;}
.footer-contact i{color:var(--accent-400);margin-top:4px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(247,244,238,.16);
  padding:20px 0 28px;
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  justify-content:space-between;
  font-size:13px;
  color:rgba(247,244,238,.6);
}

/* ---------- Toast ---------- */
.toast{
  position:fixed;
  left:50%;
  bottom:28px;
  transform:translate(-50%,16px);
  background:var(--brand-900);
  color:var(--paper);
  border:1px solid var(--accent-400);
  border-radius:var(--radius-btn);
  padding:12px 20px;
  font-size:14px;
  opacity:0;
  pointer-events:none;
  transition:opacity .2s ease,transform .2s ease;
  z-index:120;
  max-width:calc(100% - 32px);
}
.toast.is-show{opacity:1;transform:translate(-50%,0);}

/* ---------- 响应式 ---------- */
@media (max-width:1023.98px){
  .side-nav{position:sticky;top:0;left:0;right:0;}
  .nav-head{height:60px;padding:0 16px;border-bottom:1px solid rgba(247,244,238,.16);}
  .nav-toggle{display:inline-flex;}
  .nav-body{display:none;}
  .side-nav.is-open .nav-body{
    display:flex;
    flex-direction:column;
    gap:18px;
    position:fixed;
    top:60px;left:0;right:0;bottom:0;
    background:var(--paper);
    padding:18px 16px 28px;
    overflow-y:auto;
    z-index:69;
  }
  .side-nav.is-open .nav-list a{
    color:var(--ink-900);
    font-size:17px;
    min-height:56px;
    padding:0 14px;
    border-radius:10px;
  }
  .side-nav.is-open .nav-list a:hover{background:rgba(31,122,92,.08);color:var(--brand-900);}
  .side-nav.is-open .nav-list a.is-active{background:rgba(31,122,92,.12);color:var(--brand-900);}
  .side-nav.is-open .nav-list a i{color:var(--brand-500);}
  .side-nav.is-open .nav-search input{
    border-color:var(--line);
    background:var(--surface);
    color:var(--ink-900);
  }
  .side-nav.is-open .nav-search input::placeholder{color:var(--ink-400);}
  .side-nav.is-open .nav-foot{color:var(--ink-400);}
  .side-nav.is-open .nav-note{color:var(--ink-400);}
  .page-hero h1{font-size:26px;}
}
@media (min-width:640px){
  .content{padding:28px 24px 0;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .stat-strip{grid-template-columns:repeat(4,1fr);}
  .compare{grid-template-columns:repeat(2,1fr);}
  .cta-band{padding:40px 36px;}
  .cta-inner{grid-template-columns:1.4fr auto;align-items:center;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:36px;}
  .page-hero h1{font-size:30px;}
  .step-list{grid-template-columns:repeat(2,1fr);}
  .link-rows{grid-template-columns:repeat(3,1fr);}
}
@media (min-width:1024px){
  body{padding-left:var(--nav-w);}
  .side-nav{
    position:fixed;
    top:0;left:0;
    width:var(--nav-w);
    height:100vh;
    display:flex;
    flex-direction:column;
  }
  .nav-head{padding:24px 20px 16px;}
  .nav-toggle{display:none;}
  .nav-body{
    flex:1 1 auto;
    display:flex;
    flex-direction:column;
    gap:18px;
    padding:6px 20px 22px;
    overflow-y:auto;
  }
  .nav-foot{
    margin-top:auto;
    padding-top:16px;
    border-top:1px solid rgba(247,244,238,.16);
  }
  .content{padding:32px 40px 0;}
  .page-hero{min-height:272px;}
  .page-hero h1{font-size:34px;}
  .hero-inner{padding:40px 36px;}
  .section{margin-top:88px;}
  .section-head{margin-bottom:28px;}
  .section-head h2{font-size:28px;}
  .card-body{padding:24px;}
  .cta-band{margin-top:88px;}
  .site-footer{margin-top:104px;padding-top:64px;}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
}
@media (min-width:1440px){
  .content{padding-left:64px;padding-right:64px;}
}

/* roulang page: category3 */
:root{
  --brand-900:#0F3D30;
  --brand-700:#14503F;
  --brand-500:#1F7A5C;
  --accent-400:#C6F24E;
  --accent-600:#A8D62F;
  --ink-900:#16201C;
  --ink-600:#4C5B54;
  --ink-400:#7C8A83;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E4E0D6;
  --danger:#C24A3A;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(15,61,48,.04);
  --shadow-hover:0 10px 28px rgba(15,61,48,.10);
  --font-cn:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-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-900);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand-700);text-decoration:none;transition:color .16s ease,transform .16s ease;}
a:hover{color:var(--brand-500);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;letter-spacing:-0.01em;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:3px solid var(--accent-400);outline-offset:2px;}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;}

/* ====== 布局骨架 ====== */
.app-shell{min-height:100vh;}
.main-col{min-width:0;display:flex;flex-direction:column;min-height:100vh;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 16px;}
@media(min-width:640px){.wrap{padding:0 24px;}}

/* ====== 左侧竖向导航 ====== */
.side-nav{display:none;}
@media(min-width:1024px){
  .app-shell{display:grid;grid-template-columns:248px minmax(0,1fr);}
  .side-nav{
    display:flex;
    flex-direction:column;
    gap:22px;
    position:sticky;
    top:0;
    height:100vh;
    overflow-y:auto;
    background:var(--brand-900);
    color:#EDF3EF;
    padding:24px 18px;
    border-right:1px solid rgba(198,242,78,.14);
  }
}
.brand-block{display:flex;align-items:center;gap:11px;}
.brand-mark{
  flex:0 0 auto;
  width:38px;height:38px;
  display:grid;place-items:center;
  background:var(--accent-400);
  color:var(--brand-900);
  border-radius:var(--radius-btn);
  font-weight:800;
  font-size:15px;
  letter-spacing:.02em;
  text-transform:lowercase;
}
.brand-text{font-size:15px;font-weight:700;line-height:1.35;color:#F7F4EE;}
.brand-sub{font-size:12px;color:rgba(247,244,238,.6);font-weight:400;letter-spacing:.02em;}

.nav-label{font-size:12px;font-weight:600;letter-spacing:.08em;color:rgba(247,244,238,.45);padding:0 6px 8px;}
.nav-list{display:flex;flex-direction:column;gap:4px;}
.nav-list a{
  position:relative;
  display:flex;align-items:center;gap:10px;
  padding:11px 14px;
  border-radius:var(--radius-btn);
  color:rgba(247,244,238,.82);
  font-size:15px;
  transition:background .16s ease,color .16s ease,padding-left .16s ease;
}
.nav-list a i{width:16px;font-size:13px;color:rgba(198,242,78,.75);}
.nav-list a:hover{background:rgba(255,255,255,.07);color:#FFFFFF;padding-left:18px;}
.nav-list a:active{transform:translateY(0);}
.nav-list a.is-active{
  background:rgba(255,255,255,.09);
  color:#FFFFFF;
  font-weight:600;
  box-shadow:inset 3px 0 0 0 var(--accent-400);
}
.nav-list a.is-active i{color:var(--accent-400);}

.side-search{display:flex;gap:8px;flex-wrap:wrap;}
.side-search input{
  flex:1 1 120px;
  height:44px;
  padding:0 12px;
  background:rgba(255,255,255,.07);
  border:1px solid rgba(247,244,238,.18);
  border-radius:var(--radius-btn);
  color:#F7F4EE;
  font-size:14px;
}
.side-search input::placeholder{color:rgba(247,244,238,.45);}
.side-search input:focus{border-color:var(--accent-600);outline:none;box-shadow:0 0 0 3px rgba(198,242,78,.28);}
.side-actions{display:flex;flex-direction:column;gap:8px;}
.side-meta{margin-top:auto;font-size:12px;line-height:1.7;color:rgba(247,244,238,.5);border-top:1px solid rgba(247,244,238,.14);padding-top:14px;}

/* ====== 移动端顶部条与抽屉 ====== */
.mobile-bar{
  position:sticky;top:0;z-index:60;
  display:flex;align-items:center;justify-content:space-between;
  height:60px;
  padding:0 16px;
  background:var(--brand-900);
  color:#F7F4EE;
  box-shadow:0 1px 0 rgba(198,242,78,.16);
}
.mobile-bar .brand-text{font-size:14px;}
.mobile-bar .brand-mark{width:34px;height:34px;font-size:13px;}
.burger{
  display:inline-flex;align-items:center;justify-content:center;
  width:42px;height:42px;
  border-radius:var(--radius-btn);
  border:1px solid rgba(247,244,238,.22);
  color:#F7F4EE;
  transition:background .16s ease,border-color .16s ease;
}
.burger:hover{background:rgba(255,255,255,.1);border-color:var(--accent-400);}
.burger:active{transform:translateY(1px);}
@media(min-width:1024px){.mobile-bar{display:none;}}

.drawer{
  position:fixed;inset:0;z-index:90;
  background:var(--paper);
  padding:20px 18px 32px;
  overflow-y:auto;
  transform:translateY(-102%);
  opacity:0;
  visibility:hidden;
  transition:transform .22s ease,opacity .22s ease,visibility .22s;
}
.drawer.is-open{transform:translateY(0);opacity:1;visibility:visible;}
.drawer-top{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer .nav-list a{
  color:var(--ink-900);
  font-size:17px;
  min-height:56px;
  border-bottom:1px solid var(--line);
  border-radius:0;
  padding-left:8px;
}
.drawer .nav-list a i{color:var(--brand-500);}
.drawer .nav-list a:hover{background:rgba(31,122,92,.06);color:var(--brand-900);padding-left:12px;}
.drawer .nav-list a.is-active{background:rgba(198,242,78,.22);box-shadow:inset 3px 0 0 0 var(--accent-600);color:var(--brand-900);}
.drawer-search{margin-top:20px;display:flex;gap:8px;}
.drawer-search input{
  flex:1;height:44px;padding:0 12px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-btn);font-size:14px;
}
.drawer-search input:focus{border-color:var(--accent-600);outline:none;box-shadow:0 0 0 3px rgba(198,242,78,.35);}
.close-drawer{
  width:42px;height:42px;border-radius:var(--radius-btn);
  border:1px solid var(--line);background:var(--surface);color:var(--brand-900);
}
.close-drawer:hover{border-color:var(--brand-500);}

/* ====== 通用板块 ====== */
.section{padding:56px 0;}
@media(min-width:640px){.section{padding:72px 0;}}
@media(min-width:1024px){.section{padding:88px 0;}}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:28px;}
.section-title{display:flex;align-items:center;gap:12px;font-size:26px;font-weight:700;line-height:1.3;}
@media(min-width:1024px){.section-title{font-size:28px;}}
.section-title::before{content:"";flex:0 0 auto;width:4px;height:24px;border-radius:2px;background:var(--accent-400);}
.section-desc{font-size:14px;color:var(--ink-400);max-width:720px;margin-top:10px;}

/* ====== 页头 ====== */
.page-hero{
  position:relative;
  margin:20px auto 0;
  border-radius:var(--radius-img);
  overflow:hidden;
  min-height:240px;
  display:flex;
  align-items:flex-end;
  padding:26px 20px;
  color:var(--paper);
  background-image:linear-gradient(rgba(15,61,48,.92),rgba(15,61,48,.92)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
}
@media(min-width:640px){.page-hero{padding:34px 32px;min-height:256px;}}
@media(min-width:1024px){.page-hero{min-height:280px;padding:40px;}}
.hero-inner{max-width:760px;}
.crumb{font-size:13px;color:rgba(247,244,238,.72);margin-bottom:12px;display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.crumb a{color:rgba(247,244,238,.82);}
.crumb a:hover{color:var(--accent-400);}
.crumb span.sep{color:rgba(247,244,238,.35);}
.page-hero h1{font-size:30px;line-height:1.2;font-weight:800;letter-spacing:-0.01em;margin-bottom:12px;}
@media(min-width:640px){.page-hero h1{font-size:36px;}}
@media(min-width:1024px){.page-hero h1{font-size:40px;}}
.hero-sub{font-size:15px;color:rgba(247,244,238,.82);max-width:620px;}
.anchor-nav{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px;}
.anchor-nav a{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;
  font-size:13px;font-weight:600;
  border-radius:var(--radius-pill);
  background:rgba(247,244,238,.12);
  border:1px solid rgba(247,244,238,.2);
  color:#F7F4EE;
  transition:background .16s ease,color .16s ease,transform .16s ease;
}
.anchor-nav a:hover{background:var(--accent-400);color:var(--brand-900);transform:translateY(-2px);}

/* ====== 徽章 / 标签 ====== */
.badge{
  display:inline-flex;align-items:center;gap:5px;
  padding:4px 10px;
  font-size:12px;font-weight:600;
  border-radius:var(--radius-pill);
  background:rgba(31,122,92,.1);
  color:var(--brand-700);
}
.badge--accent{background:rgba(198,242,78,.4);color:#2B4310;}
.badge--line{background:transparent;border:1px solid var(--line);color:var(--ink-600);}

/* ====== 概览数据带 ====== */
.overview{display:grid;gap:16px;grid-template-columns:1fr;margin-top:8px;}
@media(min-width:640px){.overview{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.overview{grid-template-columns:repeat(4,minmax(0,1fr));}}
.stat{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:18px;
  box-shadow:var(--shadow-card);
  transition:box-shadow .18s ease,transform .18s ease;
}
.stat:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.stat-num{font-size:26px;font-weight:800;color:var(--brand-700);line-height:1.2;}
.stat-label{font-size:13px;color:var(--ink-400);margin-top:6px;}

/* ====== 条目卡网格 ====== */
.card-grid{display:grid;gap:22px;grid-template-columns:1fr;align-items:start;}
@media(min-width:768px){.card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
.card{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:rgba(31,122,92,.28);}
.thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  background-color:#E9E4D9;
  background-image:repeating-linear-gradient(135deg,rgba(15,61,48,.06) 0 12px,rgba(15,61,48,0) 12px 24px);
}
.thumb--tall{aspect-ratio:4/3;}
.thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .thumb img{transform:scale(1.03);}
.card-body{padding:18px;}
@media(min-width:640px){.card-body{padding:24px;}}
.card-body h3{font-size:19px;font-weight:600;line-height:1.45;margin-bottom:8px;}
.card-body h3 a{color:var(--ink-900);}
.card-body h3 a:hover{color:var(--brand-500);}
.card-text{font-size:14px;color:var(--ink-600);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.card-foot{margin-top:16px;padding-top:14px;border-top:1px solid var(--line);}

/* ====== 按钮 ====== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:14px;font-weight:600;
  transition:transform .16s ease,background .16s ease,color .16s ease,box-shadow .16s ease,border-color .16s ease;
}
.btn-primary{
  background:var(--brand-700);
  color:var(--paper);
  box-shadow:inset 0 0 0 2px var(--accent-400);
}
.btn-primary:hover{background:var(--accent-400);color:var(--brand-900);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;
  border:1px solid var(--line);
  color:var(--brand-700);
}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-900);background:rgba(31,122,92,.05);}
.btn-ghost:active{transform:translateY(1px);}
.btn-sm{height:44px;padding:0 18px;font-size:13px;}
.btn-link{
  position:relative;
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-700);
  padding-bottom:2px;
}
.btn-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--accent-400);transition:width .16s ease;
}
.btn-link:hover::after{width:100%;}
.cta-row{display:flex;flex-wrap:wrap;gap:12px;}

/* ====== 步骤清单 ====== */
.steps{counter-reset:step;display:grid;gap:0;margin-top:8px;}
.step{
  position:relative;
  display:grid;
  grid-template-columns:44px minmax(0,1fr);
  gap:16px;
  padding:20px 0;
  border-bottom:1px solid var(--line);
}
.step:last-child{border-bottom:0;}
.step-num{
  width:44px;height:44px;
  display:grid;place-items:center;
  border-radius:var(--radius-btn);
  background:var(--accent-400);
  color:var(--brand-900);
  font-weight:800;font-size:15px;
}
.step h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.step p{font-size:14px;color:var(--ink-600);}

/* ====== 双栏对照 ====== */
.compare{display:grid;gap:22px;grid-template-columns:1fr;}
@media(min-width:768px){.compare{grid-template-columns:repeat(2,minmax(0,1fr));}}
.compare-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px;
  box-shadow:var(--shadow-card);
}
.compare-panel h3{font-size:18px;font-weight:600;display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.compare-panel h3 i{color:var(--brand-500);}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  padding:10px 0;
  border-bottom:1px dashed var(--line);
  font-size:14px;color:var(--ink-600);
}
.check-list li:last-child{border-bottom:0;}
.check-list i{color:var(--accent-600);margin-top:5px;font-size:12px;}

/* ====== 相关分类 ====== */
.rel-list{display:grid;gap:12px;}
.rel-item{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:16px 20px;
  box-shadow:var(--shadow-card);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.rel-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:rgba(31,122,92,.28);}
.rel-item strong{font-size:16px;font-weight:600;color:var(--ink-900);}
.rel-item span{display:block;font-size:13px;color:var(--ink-400);margin-top:4px;}
.rel-item .arrow{color:var(--brand-500);transition:transform .16s ease;}
.rel-item:hover .arrow{transform:translateX(3px);color:var(--accent-600);}

/* ====== CTA ====== */
.cta-block{
  background:var(--brand-900);
  border-radius:var(--radius-card);
  padding:28px 22px;
  color:var(--paper);
  display:grid;gap:20px;
  box-shadow:0 10px 30px rgba(15,61,48,.16);
}
@media(min-width:768px){
  .cta-block{grid-template-columns:minmax(0,1fr) auto;align-items:center;padding:38px 36px;}
}
.cta-block h2{font-size:22px;font-weight:700;margin-bottom:8px;}
@media(min-width:1024px){.cta-block h2{font-size:26px;}}
.cta-block p{font-size:14px;color:rgba(247,244,238,.78);max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cta-block .btn-ghost{border-color:rgba(247,244,238,.35);color:#F7F4EE;}
.cta-block .btn-ghost:hover{background:rgba(247,244,238,.1);border-color:var(--accent-400);color:#FFFFFF;}
.toast{
  position:fixed;left:50%;bottom:28px;transform:translate(-50%,16px);
  background:var(--brand-900);color:var(--accent-400);
  font-size:13px;font-weight:600;
  padding:12px 20px;border-radius:var(--radius-pill);
  opacity:0;visibility:hidden;transition:opacity .2s ease,transform .2s ease,visibility .2s;
  z-index:120;
}
.toast.is-show{opacity:1;visibility:visible;transform:translate(-50%,0);}

/* ====== FAQ（覆盖 Foundation 手风琴默认样式） ====== */
.faq.accordion{margin:0;background:transparent;border:0;}
.faq .accordion-item{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  margin-bottom:12px;
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq .accordion-item.is-active{box-shadow:var(--shadow-hover);border-color:rgba(31,122,92,.28);}
.faq .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:18px 20px;
  font-size:16px;font-weight:600;color:var(--ink-900);
  border:0;background:transparent;
  box-shadow:inset 3px 0 0 0 transparent;
  transition:box-shadow .18s ease,color .18s ease,background .18s ease;
}
.faq .accordion-title::before{display:none !important;}
.faq .accordion-title::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:13px;color:var(--brand-500);
  transition:transform .18s ease;
}
.faq .accordion-item.is-active .accordion-title{color:var(--brand-700);box-shadow:inset 3px 0 0 0 var(--accent-400);}
.faq .accordion-item.is-active .accordion-title::after{transform:rotate(180deg);color:var(--accent-600);}
.faq .accordion-title:hover{background:rgba(31,122,92,.04);}
.faq .accordion-content{
  padding:0 20px 18px;
  border:0;background:transparent;
  font-size:15px;line-height:1.8;color:var(--ink-600);
}

/* ====== 页脚 ====== */
.site-footer{
  margin-top:auto;
  background:var(--brand-900);
  color:#EDF3EF;
  padding:48px 0 22px;
}
.footer-grid{display:grid;gap:28px;grid-template-columns:1fr;}
@media(min-width:640px){.footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media(min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:32px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.footer-brand strong{font-size:15px;color:#F7F4EE;}
.footer-about{font-size:13px;line-height:1.8;color:rgba(247,244,238,.68);max-width:360px;}
.site-footer h3{
  font-size:14px;font-weight:600;color:#F7F4EE;
  padding-bottom:10px;margin-bottom:14px;position:relative;
}
.site-footer h3::after{content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--accent-400);}
.footer-list li,.footer-contact li{margin-bottom:10px;font-size:13px;}
.footer-list a{color:rgba(247,244,238,.72);display:inline-block;}
.footer-list a:hover{color:var(--accent-400);transform:translateX(2px);}
.footer-contact li{color:rgba(247,244,238,.68);display:flex;align-items:center;gap:8px;}
.footer-contact i{color:rgba(198,242,78,.75);font-size:12px;}
.footer-bottom{
  margin-top:32px;padding-top:18px;
  border-top:1px solid rgba(247,244,238,.14);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12px;color:rgba(247,244,238,.55);
}
@media(max-width:639px){
  .footer-grid{gap:22px;}
  .footer-grid > div + div{border-top:1px solid rgba(247,244,238,.12);padding-top:20px;}
}

/* roulang page: category4 */
:root{
  --brand-900:#0F3D30;
  --brand-700:#14503F;
  --brand-500:#1F7A5C;
  --accent-400:#C6F24E;
  --accent-600:#A8D62F;
  --ink-900:#16201C;
  --ink-600:#4C5B54;
  --ink-400:#7C8A83;
  --paper:#F7F4EE;
  --surface:#FFFFFF;
  --line:#E4E0D6;
  --danger:#C24A3A;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(15,61,48,.04);
  --shadow-2:0 10px 28px rgba(15,61,48,.10);
  --gap-xs:8px;
  --gap-sm:16px;
  --gap-md:24px;
  --gap-lg:32px;
  --gap-xl:40px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--paper);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
a{color:inherit;text-decoration:none;transition:color .16s ease}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
h1,h2,h3,h4{margin:0;letter-spacing:-.005em;line-height:1.3;font-weight:700}
h1{font-size:40px;line-height:1.2;font-weight:800;letter-spacing:-.01em}
h2{font-size:28px}
h3{font-size:20px;font-weight:600}
:focus-visible{outline:3px solid var(--accent-400);outline-offset:2px}

/* ---------- 布局骨架 ---------- */
.shell{display:flex;align-items:flex-start;min-height:100vh}
.main-wrap{flex:1;min-width:0;display:flex;flex-direction:column}
.content{width:100%;max-width:1240px;margin:0 auto;padding:32px 40px 0;flex:1}
section{margin-bottom:88px}
section:last-of-type{margin-bottom:64px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px;flex-wrap:wrap}
.sec-title{display:flex;align-items:center;gap:12px}
.sec-title::before{content:"";width:4px;height:24px;border-radius:2px;background:var(--accent-400);flex:0 0 4px}
.sec-note{font-size:13px;color:var(--ink-400)}
.lead{font-size:16px;color:var(--ink-600);max-width:760px}

/* ---------- 左侧竖向导航 ---------- */
.sidebar{
  flex:0 0 248px;
  width:248px;
  position:sticky;
  top:0;
  height:100vh;
  overflow-y:auto;
  background:var(--brand-900);
  color:rgba(247,244,238,.86);
  padding:24px 18px;
  display:flex;
  flex-direction:column;
  gap:24px;
  z-index:60;
  border-right:1px solid rgba(255,255,255,.06);
}
.sidebar::-webkit-scrollbar{width:6px}
.sidebar::-webkit-scrollbar-thumb{background:rgba(255,255,255,.16);border-radius:999px}
.brand{display:flex;align-items:center;gap:10px}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:var(--accent-400);color:var(--brand-900);
  display:grid;place-items:center;font-weight:800;font-size:15px;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0}
.brand-text strong{font-size:15px;font-weight:700;color:#fff;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-text span{font-size:12px;color:rgba(247,244,238,.58)}
.side-label{font-size:12px;font-weight:600;letter-spacing:.1em;color:rgba(247,244,238,.48);margin-bottom:10px}
.nav-list{display:flex;flex-direction:column;gap:4px}
.nav-list a{
  position:relative;display:flex;align-items:center;gap:10px;
  padding:11px 12px;border-radius:10px;font-size:15px;
  color:rgba(247,244,238,.82);
  transition:background .16s ease,color .16s ease;
}
.nav-list a i{width:18px;text-align:center;font-size:14px;opacity:.85}
.nav-list a:hover{background:rgba(255,255,255,.07);color:#fff}
.nav-list a.is-active{background:rgba(255,255,255,.11);color:#fff;font-weight:600}
.nav-list a.is-active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:3px;background:var(--accent-400);
}
.side-search{display:flex;gap:8px}
.side-search input{
  flex:1;min-width:0;height:44px;padding:0 12px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.18);background:rgba(255,255,255,.06);
  color:#fff;font-size:14px;
}
.side-search input::placeholder{color:rgba(247,244,238,.45)}
.side-search input:focus{outline:none;border-color:var(--accent-600);box-shadow:0 0 0 3px rgba(198,242,78,.25)}
.side-search button{
  height:44px;padding:0 14px;border-radius:var(--radius-btn);
  background:var(--accent-400);color:var(--brand-900);font-weight:700;font-size:14px;
  transition:background .16s ease,transform .16s ease;
}
.side-search button:hover{background:var(--accent-600)}
.side-search button:active{transform:translateY(1px)}
.side-actions{display:flex;gap:8px}
.side-actions button{
  flex:1;height:40px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.18);
  display:flex;align-items:center;justify-content:center;gap:6px;
  font-size:13px;color:rgba(247,244,238,.9);
  transition:background .16s ease,border-color .16s ease,color .16s ease;
}
.side-actions button:hover{background:rgba(198,242,78,.14);border-color:var(--accent-600);color:#fff}
.side-actions button.is-on{background:var(--accent-400);color:var(--brand-900);border-color:var(--accent-400)}
.side-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid rgba(255,255,255,.1);
  font-size:12px;line-height:1.7;color:rgba(247,244,238,.52);
}
.side-meta span{display:block}

/* ---------- 移动顶栏 ---------- */
.mobile-bar{
  display:none;position:sticky;top:0;z-index:58;height:60px;
  align-items:center;justify-content:space-between;
  padding:0 16px;background:var(--brand-900);color:#fff;
}
.mobile-bar .brand-mark{width:32px;height:32px;flex:0 0 32px;font-size:13px;border-radius:9px}
.mobile-bar .brand-text strong{font-size:14px}
.menu-btn{
  width:44px;height:44px;border-radius:10px;display:grid;place-items:center;
  background:rgba(255,255,255,.1);color:#fff;font-size:17px;
  transition:background .16s ease;
}
.menu-btn:hover{background:rgba(255,255,255,.2)}
.nav-backdrop{
  display:none;position:fixed;inset:0;background:rgba(15,61,48,.5);z-index:55;opacity:0;
  transition:opacity .2s ease;
}

/* ---------- 页头封面 ---------- */
.page-hero{
  position:relative;overflow:hidden;border-radius:var(--radius-card);
  min-height:270px;padding:36px 40px;
  display:flex;flex-direction:column;justify-content:flex-end;gap:14px;
  color:#fff;
  background-image:linear-gradient(95deg,rgba(15,61,48,.93) 12%,rgba(15,61,48,.62) 100%),url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  box-shadow:var(--shadow-1);
}
.page-hero h1{max-width:820px;color:#fff}
.hero-badge{
  align-self:flex-start;font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:5px 12px;border-radius:var(--radius-pill);
  background:rgba(198,242,78,.9);color:var(--brand-900);
}
.hero-sub{font-size:16px;color:rgba(247,244,238,.88);max-width:640px}
.anchor-nav{display:flex;flex-wrap:wrap;gap:8px;margin-top:6px}
.anchor-nav a{
  font-size:13px;padding:7px 14px;border-radius:var(--radius-pill);
  border:1px solid rgba(255,255,255,.34);color:#fff;
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.anchor-nav a:hover{background:var(--accent-400);border-color:var(--accent-400);color:var(--brand-900)}

/* ---------- 卡片 ---------- */
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  display:flex;flex-direction:column;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#D6D2C6}
.card-img{
  width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;
  background:linear-gradient(135deg,var(--brand-700),var(--brand-500));
}
.card-body{padding:24px;display:flex;flex-direction:column;gap:10px}
.card-body h3{font-size:18px}
.card-text{font-size:14px;line-height:1.8;color:var(--ink-600);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.badge{
  font-size:12px;font-weight:600;padding:4px 11px;border-radius:var(--radius-pill);
  background:rgba(198,242,78,.28);color:var(--brand-700);
  border:1px solid rgba(168,214,47,.55);
}
.badge-plain{background:var(--paper);color:var(--ink-600);border-color:var(--line)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  transition:background .16s ease,color .16s ease,transform .16s ease,border-color .16s ease,box-shadow .16s ease;
}
.btn-primary{background:var(--brand-900);color:var(--paper);box-shadow:inset 0 0 0 2px var(--accent-400)}
.btn-primary:hover{background:var(--accent-400);color:var(--brand-900);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--brand-700)}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-900);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-on-light{background:var(--accent-400);color:var(--brand-900)}
.btn-on-light:hover{background:#D6FF6B;transform:translateY(-2px)}
.btn-on-light:active{transform:translateY(0)}
.btn-outline-light{background:transparent;border:1px solid rgba(247,244,238,.5);color:var(--paper)}
.btn-outline-light:hover{border-color:var(--accent-400);color:var(--accent-400);transform:translateY(-2px)}
.btn-outline-light:active{transform:translateY(0)}

/* ---------- 问答手风琴 ---------- */
.faq-block{margin-bottom:28px}
.faq-block:last-child{margin-bottom:0}
.faq-block > h3{margin-bottom:14px;color:var(--brand-700)}
.faq{border:1px solid var(--line);border-radius:var(--radius-card);background:var(--surface);overflow:hidden;box-shadow:var(--shadow-1)}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  position:relative;width:100%;display:flex;align-items:flex-start;justify-content:space-between;
  gap:16px;padding:20px 22px;text-align:left;
  font-size:16px;font-weight:600;color:var(--ink-900);
  transition:background .16s ease,color .16s ease;
}
.faq-q:hover{background:var(--paper)}
.faq-q .chev{flex:0 0 auto;color:var(--ink-400);transition:transform .18s ease,color .18s ease;margin-top:4px}
.faq-item.is-open .faq-q .chev{transform:rotate(180deg);color:var(--brand-500)}
.faq-item.is-open .faq-q::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;
  background:var(--accent-400);border-radius:0 3px 3px 0;
}
.faq-a{display:none;padding:0 22px 22px 25px;font-size:15px;line-height:1.8;color:var(--ink-600)}
.faq-item.is-open .faq-a{display:block}

/* ---------- 速览网格 ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;align-items:start}
.qa-grid .card:nth-child(2),
.qa-grid .card:nth-child(5){margin-top:12px}

/* ---------- 步骤清单 ---------- */
.steps{display:grid;gap:16px;margin-bottom:32px}
.step{
  display:flex;gap:16px;align-items:flex-start;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px 24px;box-shadow:var(--shadow-1);
  transition:transform .18s ease,box-shadow .18s ease;
}
.step:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.step-num{
  flex:0 0 40px;height:40px;border-radius:12px;display:grid;place-items:center;
  background:var(--paper);border:1px solid var(--line);
  color:var(--brand-700);font-weight:700;font-size:15px;
}
.step h3{font-size:17px;margin-bottom:6px}
.step p{font-size:14px;line-height:1.8;color:var(--ink-600);margin:0}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-left:26px;border-left:2px solid var(--line);display:grid;gap:20px}
.tl-item{position:relative;padding-left:12px}
.tl-item::before{
  content:"";position:absolute;left:-34px;top:8px;width:12px;height:12px;border-radius:50%;
  background:var(--accent-400);border:2px solid var(--brand-900);
}
.tl-item h3{font-size:16px;margin-bottom:4px}
.tl-item p{font-size:14px;line-height:1.8;color:var(--ink-600);margin:0}

/* ---------- 相关分类互链 ---------- */
.rel-links{display:grid;gap:12px}
.rel-link{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.rel-link:hover{transform:translateX(3px);border-color:var(--brand-500);box-shadow:var(--shadow-1)}
.rel-link strong{font-size:16px;font-weight:600;display:block}
.rel-link span{font-size:13px;color:var(--ink-400)}
.rel-link i{color:var(--brand-500)}

/* ---------- 精简三问 ---------- */
.mini-qa{display:grid;gap:12px}
.mini-qa li{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:18px 22px;font-size:15px;line-height:1.8;color:var(--ink-600);
}
.mini-qa strong{display:block;color:var(--ink-900);font-weight:600;margin-bottom:4px}

/* ---------- 收藏分享 CTA ---------- */
.cta{
  position:relative;overflow:hidden;
  background:var(--brand-900);color:var(--paper);
  border-radius:var(--radius-card);padding:40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
}
.cta::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:linear-gradient(90deg,rgba(198,242,78,.09),transparent 62%);
}
.cta-text{position:relative;z-index:1;max-width:560px}
.cta-text h2{color:#fff;margin-bottom:10px}
.cta-text p{font-size:15px;color:rgba(247,244,238,.82);margin:0}
.cta-actions{position:relative;z-index:1;display:flex;gap:12px;flex-wrap:wrap}

/* ---------- 提示条 ---------- */
.toast{
  position:fixed;left:50%;bottom:32px;transform:translate(-50%,12px);
  background:var(--brand-900);color:#fff;padding:12px 20px;border-radius:var(--radius-pill);
  font-size:14px;opacity:0;pointer-events:none;z-index:90;
  box-shadow:var(--shadow-2);transition:opacity .2s ease,transform .2s ease;
}
.toast.is-show{opacity:1;transform:translate(-50%,0)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--brand-900);color:rgba(247,244,238,.82);
  padding:64px 40px 28px;margin-top:88px;
}
.site-footer .wrap{max-width:1200px;margin:0 auto}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand strong{color:#fff;font-size:16px;font-weight:700}
.site-footer h3{
  font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;
  position:relative;padding-bottom:10px;
}
.site-footer h3::after{
  content:"";position:absolute;left:0;bottom:0;width:24px;height:2px;background:var(--accent-400);
}
.footer-about{font-size:14px;line-height:1.8;color:rgba(247,244,238,.7);max-width:340px}
.footer-list,.footer-contact{display:grid;gap:10px;font-size:14px}
.footer-list a{color:rgba(247,244,238,.78);display:inline-block}
.footer-list a:hover{color:var(--accent-400);transform:translateX(2px)}
.footer-contact li{display:flex;align-items:center;gap:8px;color:rgba(247,244,238,.75)}
.footer-contact i{color:var(--accent-400);width:16px;text-align:center}
.footer-bottom{
  margin-top:36px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(247,244,238,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .shell{display:block}
  .sidebar{
    position:fixed;top:0;left:0;bottom:0;width:284px;max-width:84vw;height:100vh;
    flex:none;transform:translateX(-102%);
    transition:transform .24s ease;box-shadow:0 12px 40px rgba(15,61,48,.28);
  }
  body.nav-open .sidebar{transform:translateX(0)}
  body.nav-open .nav-backdrop{display:block;opacity:1}
  .mobile-bar{display:flex}
  .content{padding:20px 20px 0}
  .page-hero{padding:28px 24px;min-height:240px}
  section{margin-bottom:72px}
  .site-footer{padding:52px 20px 24px;margin-top:72px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .cta{padding:32px 24px}
}

@media (max-width:767px){
  .qa-grid{grid-template-columns:1fr}
  .qa-grid .card:nth-child(2),.qa-grid .card:nth-child(5){margin-top:0}
  h1{font-size:30px}
  h2{font-size:23px}
  h3{font-size:18px}
  .page-hero{min-height:220px;padding:24px 18px}
  .hero-sub{font-size:15px}
  section{margin-bottom:56px}
  .card-body{padding:18px}
  .cta{flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn{width:100%}
}

@media (max-width:520px){
  body{font-size:15px;line-height:1.9}
  h1{font-size:26px}
  .content{padding:16px 14px 0}
  .site-footer{padding:44px 14px 20px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .footer-bottom{flex-direction:column;gap:6px}
  .btn{height:44px;padding:0 18px;font-size:14px}
  .anchor-nav a{font-size:12px;padding:6px 12px}
  .step{padding:18px}
  .rel-link{padding:16px}
}