/* roulang page: index */
:root{
  --bs-primary:#0F5B52;
  --bs-body-bg:#F7F6F1;
  --bs-body-color:#14201E;
  --bs-border-radius:12px;
  --bs-border-color:#E3E8E5;
  --bs-link-color:#0F5B52;
  --bs-link-hover-color:#FF6B45;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;

  --c-primary:#0F5B52;
  --c-primary-d:#0B443D;
  --c-accent:#FF6B45;
  --c-accent-d:#E85730;
  --c-mist:#E6EFEC;
  --c-line:#E3E8E5;
  --c-bg:#F7F6F1;
  --t-1:#14201E;
  --t-2:#5C6B67;
  --t-3:#8C9A96;
  --c-ok:#2F9E6B;
  --c-err:#E0483D;
  --r-l:16px;
  --r-m:12px;
  --r-s:10px;
  --r-p:999px;
  --sh-1:0 1px 2px rgba(20,32,30,.06);
  --sh-2:0 12px 32px -14px rgba(20,32,30,.14);
  --sh-3:0 18px 40px -16px rgba(20,32,30,.20);
  --sb-w:240px;
  --top-h:56px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  background:var(--c-bg);
  color:var(--t-1);
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--c-accent);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--t-1);}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:4px;}
.skip-link{position:absolute;left:-9999px;top:0;background:#fff;padding:10px 16px;z-index:2000;border-radius:0 0 10px 0;}
.skip-link:focus{left:0;}

/* ============ 容器 ============ */
.cx{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
@media (min-width:1600px){.cx{max-width:1280px;}}
.sec{padding:88px 0;}
.sec-head{max-width:760px;margin-bottom:36px;}
.sec-head h2{font-size:30px;margin-bottom:12px;position:relative;padding-bottom:14px;}
.sec-head h2::after{content:"";position:absolute;left:0;bottom:0;width:56px;height:3px;border-radius:2px;background:var(--c-accent);}
.sec-head p{color:var(--t-2);font-size:15.5px;margin:0;}
.sec-lead{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.more-link{font-size:15px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px;}
.more-link::after{content:"→";transition:transform .18s ease-out;}
.more-link:hover{color:var(--c-accent);}
.more-link:hover::after{transform:translateX(4px);}

/* ============ 侧栏 App Shell ============ */
.app-sidebar{
  width:var(--sb-w);
  background:#fff;
  border-right:1px solid var(--c-line);
  padding:26px 18px 22px;
  display:flex;
  flex-direction:column;
  gap:26px;
}
.brand{display:flex;align-items:center;gap:11px;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:var(--c-primary);display:flex;align-items:center;justify-content:center;
  box-shadow:var(--sh-1);
}
.brand-mark svg{width:22px;height:22px;stroke:#fff;}
.brand-text{font-weight:700;font-size:15px;line-height:1.25;color:var(--t-1);letter-spacing:.2px;}
.brand-text small{display:block;font-size:11.5px;font-weight:500;color:var(--t-3);letter-spacing:.4px;}

.side-nav{display:flex;flex-direction:column;gap:4px;}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  min-height:46px;padding:10px 12px;border-radius:10px;
  color:var(--t-2);font-size:15px;font-weight:500;
  transition:background .18s ease-out,color .18s ease-out;
}
.nav-item svg{width:20px;height:20px;flex:0 0 20px;stroke:currentColor;fill:none;stroke-width:1.6;}
.nav-item .nav-arrow{
  width:14px;height:14px;margin-left:auto;opacity:0;transform:translateX(-6px);
  transition:opacity .18s ease-out,transform .18s ease-out;stroke:currentColor;stroke-width:2;
}
.nav-item:hover{background:var(--c-mist);color:var(--c-primary);}
.nav-item:hover .nav-arrow{opacity:1;transform:translateX(0);}
.nav-item.active{background:var(--c-mist);color:var(--c-primary);font-weight:600;}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:2px;background:var(--c-accent);
}
.nav-item.active .nav-arrow{opacity:1;transform:translateX(0);}

.side-foot{
  margin-top:auto;background:var(--c-mist);border-radius:var(--r-m);
  padding:16px;border:1px solid #D8E5E1;
}
.side-foot .sf-line{font-size:13.5px;color:var(--t-2);margin:0 0 10px;line-height:1.6;}
.side-foot .sf-btn{
  display:inline-flex;align-items:center;justify-content:center;width:100%;
  min-height:40px;border-radius:9px;background:var(--c-primary);color:#fff;
  font-size:14px;font-weight:600;transition:background .18s ease-out,transform .18s ease-out;
}
.side-foot .sf-btn:hover{background:var(--c-accent);color:#fff;transform:translateY(-1px);}
.side-foot .sf-motto{font-size:12.5px;color:var(--t-3);margin:12px 0 0;text-align:center;}

@media (min-width:992px){
  .app-sidebar{
    position:fixed;top:0;left:0;bottom:0;height:100vh;
    visibility:visible !important;transform:none !important;
    background:#fff !important;border-right:1px solid var(--c-line) !important;
    z-index:1035;overflow-y:auto;
  }
  .app-main{margin-left:var(--sb-w);}
  .mobile-top{display:none;}
}
@media (min-width:992px) and (max-width:1199px){
  :root{--sb-w:88px;}
  .app-sidebar{padding:22px 14px;align-items:center;}
  .brand-text,.nav-label,.nav-arrow,.side-foot{display:none;}
  .nav-item{justify-content:center;padding:12px 0;}
  .brand{justify-content:center;}
}
@media (max-width:991px){
  .app-sidebar{width:280px;}
  .app-main{padding-top:var(--top-h);}
}

/* ============ 移动顶栏 ============ */
.mobile-top{
  position:fixed;top:0;left:0;right:0;height:var(--top-h);z-index:1040;
  background:rgba(255,255,255,.96);backdrop-filter:blur(8px);
  border-bottom:1px solid var(--c-line);
  display:flex;align-items:center;gap:12px;padding:0 14px;
}
.hamburger{
  width:44px;height:44px;border:1px solid var(--c-line);background:#fff;border-radius:10px;
  display:flex;align-items:center;justify-content:center;cursor:pointer;flex:0 0 44px;
}
.hamburger svg{width:20px;height:20px;stroke:var(--c-primary);stroke-width:1.8;fill:none;}
.mt-brand{font-weight:700;font-size:15px;color:var(--t-1);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.mt-cta{margin-left:auto;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:10px 22px;border-radius:var(--r-s);
  font-weight:600;font-size:15px;border:1px solid transparent;cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn-accent{background:var(--c-accent);color:#fff;border-color:var(--c-accent);box-shadow:0 8px 20px -12px rgba(255,107,69,.85);}
.btn-accent:hover{background:var(--c-accent-d);border-color:var(--c-accent-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3);}
.btn-accent:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-mist);color:var(--c-primary-d);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-solid{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn-solid:hover{background:var(--c-primary-d);border-color:var(--c-primary-d);color:#fff;transform:translateY(-1px);}
.btn-lg{min-height:52px;padding:13px 28px;font-size:16.5px;border-radius:11px;}
.btn-sm{min-height:36px;padding:6px 14px;font-size:14px;border-radius:9px;}
.btn-block{width:100%;}

/* ============ 徽章 ============ */
.badge-cat{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-p);
  background:var(--c-mist);color:var(--c-primary);font-size:12px;font-weight:600;
}
.badge-hot{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-p);
  background:var(--c-accent);color:#fff;font-size:12px;font-weight:600;
}
.badge-line{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-p);
  border:1px solid var(--c-line);color:var(--t-2);font-size:12px;font-weight:600;background:#fff;
}

/* ============ 倒计时条 ============ */
.countbar{
  position:sticky;top:0;z-index:1020;
  background:var(--c-primary);color:#fff;min-height:var(--top-h);
  box-shadow:0 2px 12px -6px rgba(15,91,82,.6);
}
.countbar.is-hidden{display:none;}
.cb-inner{
  display:flex;align-items:center;gap:22px;min-height:var(--top-h);
}
.cb-left{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.cb-name{font-size:15px;font-weight:700;letter-spacing:.3px;}
.cb-badge{
  display:inline-flex;align-items:center;height:22px;padding:0 9px;border-radius:var(--r-p);
  background:var(--c-accent);color:#fff;font-size:11.5px;font-weight:600;
}
.cb-timer{display:flex;align-items:center;gap:14px;margin:0 auto;}
.cb-unit{display:flex;align-items:baseline;gap:5px;}
.cb-unit b{
  font-size:36px;line-height:1;font-weight:700;color:var(--c-accent);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;
}
.cb-unit span{font-size:12.5px;color:rgba(255,255,255,.78);}
.cb-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.cb-close{
  width:32px;height:32px;border-radius:50%;border:1px solid rgba(255,255,255,.3);
  background:transparent;color:#fff;font-size:17px;line-height:1;cursor:pointer;
  display:flex;align-items:center;justify-content:center;transition:background .18s ease-out;
}
.cb-close:hover{background:rgba(255,255,255,.14);}
@media (max-width:991px){
  .countbar{top:var(--top-h);min-height:48px;}
  .cb-inner{min-height:48px;gap:14px;overflow-x:auto;flex-wrap:nowrap;padding-top:6px;padding-bottom:6px;}
  .cb-timer{margin:0;gap:10px;}
  .cb-unit b{font-size:24px;}
  .cb-name{font-size:13.5px;}
}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:76px 0 84px;background:#fff;border-bottom:1px solid var(--c-line);}
.hero-deco{position:absolute;right:-60px;top:-40px;width:560px;height:560px;opacity:.07;pointer-events:none;}
.hero-deco svg{width:100%;height:100%;stroke:var(--c-primary);fill:none;stroke-width:1.2;}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;position:relative;z-index:1;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--c-primary);letter-spacing:.4px;
  background:var(--c-mist);border-radius:var(--r-p);padding:6px 14px;margin-bottom:20px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--c-accent);}
.hero h1{font-size:40px;line-height:1.28;margin-bottom:18px;letter-spacing:-.3px;}
.hero-sub{font-size:17px;color:var(--t-2);max-width:560px;margin-bottom:28px;}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:34px;}
.hero-stats{display:flex;gap:16px;flex-wrap:wrap;}
.hero-stats li{
  flex:1 1 130px;background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-m);
  padding:14px 16px;
}
.hero-stats b{display:block;font-size:20px;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.3;}
.hero-stats span{font-size:13px;color:var(--t-3);}
.hero-media{border-radius:var(--r-l);overflow:hidden;border:1px solid var(--c-line);box-shadow:var(--sh-2);}
.hero-media img{width:100%;height:auto;object-fit:cover;aspect-ratio:4/3;}

/* ============ 卖点阶梯 ============ */
.merits{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.merit{
  display:flex;gap:20px;background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-l);padding:26px;box-shadow:var(--sh-1);
  transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.merit:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.merit-num{
  flex:0 0 62px;font-size:48px;line-height:1;font-weight:700;color:transparent;
  -webkit-text-stroke:1.5px var(--c-accent);font-variant-numeric:tabular-nums;
  letter-spacing:-1px;
}
.merit h3{font-size:19px;margin-bottom:8px;}
.merit p{margin:0;color:var(--t-2);font-size:15px;line-height:1.75;}

/* ============ 图墙 ============ */
.wall{display:grid;grid-template-columns:repeat(3,1fr);grid-auto-rows:132px;gap:16px;grid-auto-flow:dense;}
.wall-item{
  position:relative;display:block;overflow:hidden;border-radius:var(--r-l);
  border:1px solid var(--c-line);box-shadow:var(--sh-1);
}
.wall-item.tall{grid-row:span 2;}
.wall-item img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease-out;}
.wall-item::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,32,30,.05) 0%,rgba(20,32,30,.62) 100%);
  transition:background .25s ease-out;
}
.wall-item:hover img{transform:scale(1.04);}
.wall-item:hover::after{background:linear-gradient(180deg,rgba(20,32,30,.10) 0%,rgba(20,32,30,.76) 100%);}
.wall-tag{position:absolute;top:12px;left:12px;z-index:2;}
.wall-cap{
  position:absolute;left:14px;right:14px;bottom:12px;z-index:2;
  color:#fff;font-size:14.5px;font-weight:600;letter-spacing:.2px;
}

/* ============ 最新信息列表 ============ */
.news-list{display:flex;flex-direction:column;gap:16px;}
.news-card{
  display:grid;grid-template-columns:200px 1fr;gap:22px;
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-m);
  padding:14px;box-shadow:var(--sh-1);
  transition:box-shadow .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
}
.news-card:hover{box-shadow:var(--sh-3);transform:translateY(-2px);border-color:#CFE0DA;}
.news-thumb{border-radius:10px;overflow:hidden;aspect-ratio:16/10;background:var(--c-mist);}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.news-card:hover .news-thumb img{transform:scale(1.03);}
.news-body{padding:6px 8px 6px 0;min-width:0;}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:10px;flex-wrap:wrap;}
.news-date{font-size:13.5px;color:var(--t-3);font-variant-numeric:tabular-nums;}
.news-title{
  font-size:19px;line-height:1.45;margin-bottom:8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease-out;
}
.news-card:hover .news-title{color:var(--c-primary);}
.news-sum{
  color:var(--t-2);font-size:14.5px;line-height:1.75;margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.empty-state{
  background:#fff;border:1px dashed #CFDBD7;border-radius:var(--r-l);
  padding:54px 24px;text-align:center;
}
.empty-state svg{width:44px;height:44px;stroke:var(--t-3);stroke-width:1.5;fill:none;margin:0 auto 16px;}
.empty-state p{color:var(--t-2);margin-bottom:18px;}
.empty-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}

/* ============ 数据证据 ============ */
.evidence{background:var(--c-mist);border-radius:24px;padding:52px 44px;}
.evidence-grid{display:grid;grid-template-columns:1.05fr 1fr;gap:48px;align-items:center;}
.evidence h2{font-size:28px;margin-bottom:16px;}
.evidence p{color:var(--t-2);margin-bottom:0;}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;}
.stat{background:#fff;border:1px solid #D6E4DF;border-radius:var(--r-m);padding:20px 22px;box-shadow:var(--sh-1);}
.stat b{display:block;font-size:30px;line-height:1.2;color:var(--c-primary);font-variant-numeric:tabular-nums;}
.stat span{font-size:13.5px;color:var(--t-2);}

/* ============ 报名 CTA ============ */
.signup{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.signup-grid{display:grid;grid-template-columns:.9fr 1.1fr;gap:56px;align-items:start;}
.signup-intro h2{font-size:30px;margin-bottom:16px;}
.signup-intro > p{color:var(--t-2);margin-bottom:26px;}
.point-list li{display:flex;gap:12px;align-items:flex-start;margin-bottom:14px;font-size:15.5px;color:var(--t-1);}
.point-list svg{width:20px;height:20px;flex:0 0 20px;stroke:var(--c-accent);stroke-width:2;fill:none;margin-top:4px;}
.form-card{background:var(--c-bg);border:1px solid var(--c-line);border-radius:var(--r-l);padding:30px;box-shadow:var(--sh-1);}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;color:var(--t-2);font-weight:600;margin-bottom:8px;}
.field label .req{color:var(--c-accent);margin-left:3px;}
.form-control,.form-select{
  width:100%;min-height:48px;padding:11px 14px;border-radius:var(--r-s);
  border:1px solid var(--c-line);background:#fff;font-size:15px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
textarea.form-control{min-height:100px;resize:vertical;line-height:1.7;}
.form-control:focus,.form-select:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(15,91,82,.12);
}
.form-control.is-invalid,.form-select.is-invalid{border-color:var(--c-err);}
.field .err-msg{display:none;color:var(--c-err);font-size:13px;margin-top:6px;}
.field.has-error .err-msg{display:block;}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:6px 0 20px;font-size:14px;color:var(--t-2);}
.check-row input{width:18px;height:18px;margin-top:5px;accent-color:var(--c-primary);flex:0 0 18px;}
.form-success{
  background:#fff;border:1px solid #CFE7DC;border-radius:var(--r-l);padding:40px 30px;text-align:center;
}
.form-success svg{width:52px;height:52px;stroke:var(--c-ok);stroke-width:1.6;fill:none;margin:0 auto 16px;}
.form-success h3{font-size:21px;margin-bottom:10px;}
.form-success p{color:var(--t-2);margin:0;}

/* ============ FAQ ============ */
.faq .accordion-item{
  border:1px solid var(--c-line);border-radius:var(--r-m) !important;
  background:#fff;margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.faq .accordion-button{
  display:flex;align-items:center;gap:18px;width:100%;
  padding:20px 22px;background:#fff;border:0;font-size:16.5px;font-weight:600;color:var(--t-1);
  box-shadow:none !important;transition:background .18s ease-out,color .18s ease-out;
}
.faq .accordion-button:not(.collapsed){background:var(--c-mist);color:var(--c-primary);}
.faq .accordion-button::after{display:none;}
.faq-num{
  font-size:15px;font-weight:700;color:var(--c-accent);font-variant-numeric:tabular-nums;
  flex:0 0 30px;letter-spacing:.5px;
}
.faq-q{flex:1;text-align:left;}
.faq-chev{width:18px;height:18px;flex:0 0 18px;stroke:currentColor;stroke-width:2;fill:none;transition:transform .22s ease-out;}
.faq .accordion-button:not(.collapsed) .faq-chev{transform:rotate(90deg);}
.faq .accordion-button:not(.collapsed) .faq-num::before{content:"";}
.faq .accordion-body{padding:4px 22px 22px 70px;color:var(--t-2);font-size:15.5px;line-height:1.85;position:relative;}
.faq .accordion-button:not(.collapsed) ~ .accordion-collapse .accordion-body::before{
  content:"";position:absolute;left:34px;top:2px;bottom:24px;width:3px;border-radius:2px;background:var(--c-accent);
}

/* ============ 页脚 ============ */
.site-footer{background:var(--c-primary);color:#E8F1EE;margin-top:0;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;
  padding:64px 32px 42px;
}
.f-logo{font-size:18px;font-weight:700;color:#fff;margin-bottom:14px;letter-spacing:.3px;}
.f-brand p{font-size:14.5px;color:rgba(232,241,238,.78);line-height:1.8;margin:0;max-width:320px;}
.f-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:700;}
.f-col li{margin-bottom:10px;}
.f-col a,.f-col span{font-size:14.5px;color:rgba(232,241,238,.78);}
.f-col a:hover{color:var(--c-accent);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  padding:20px 32px 28px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13.5px;color:rgba(232,241,238,.7);
}
.to-top{color:rgba(232,241,238,.85);font-weight:600;}
.to-top:hover{color:var(--c-accent);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero h1{font-size:34px;}
  .evidence-grid,.signup-grid{grid-template-columns:1fr;gap:36px;}
}
@media (max-width:991px){
  .sec{padding:60px 0;}
  .hero{padding:48px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:34px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .evidence{padding:36px 24px;border-radius:18px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;padding:48px 24px 32px;}
  .news-card{grid-template-columns:1fr;}
  .news-thumb{aspect-ratio:16/9;}
  .news-body{padding:0 4px 8px;}
  .faq .accordion-body{padding-left:22px;}
  .faq .accordion-button:not(.collapsed) ~ .accordion-collapse .accordion-body::before{display:none;}
}
@media (max-width:767px){
  .merits{grid-template-columns:1fr;}
  .wall{grid-template-columns:repeat(2,1fr);grid-auto-rows:120px;}
  .stat-grid{grid-template-columns:1fr 1fr;}
  .signup-grid{gap:28px;}
  .form-card{padding:22px;}
}
@media (max-width:575px){
  body{font-size:16px;}
  .cx{padding:0 18px;}
  .sec{padding:50px 0;}
  .hero h1{font-size:27px;}
  .sec-head h2{font-size:23px;}
  .signup-intro h2,.evidence h2{font-size:23px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .hero-stats li{flex:1 1 100%;}
  .wall{grid-template-columns:1fr;grid-auto-rows:160px;}
  .wall-item.tall{grid-row:span 1;}
  .footer-grid{grid-template-columns:1fr;padding:40px 18px 26px;}
  .footer-bottom{padding:18px;flex-direction:column;align-items:flex-start;}
  .merit{padding:20px;gap:14px;}
  .merit-num{flex:0 0 46px;font-size:36px;}
  .faq .accordion-button{padding:16px;gap:12px;font-size:15.5px;}
  .cb-timer{gap:8px;}
  .cb-unit b{font-size:22px;}
}

/* roulang page: category1 */
:root{
  --c-primary:#0F5B52;
  --c-primary-dark:#0B463F;
  --c-primary-soft:#E6EFEC;
  --c-accent:#FF6B45;
  --c-accent-dark:#EE5A34;
  --c-mist:#E6EFEC;
  --c-line:#E3E8E5;
  --c-bg:#F7F6F1;
  --c-card:#FFFFFF;
  --t-main:#14201E;
  --t-sub:#5C6B67;
  --t-weak:#8C9A96;
  --c-success:#2F9E6B;
  --c-error:#E0483D;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(20,32,30,.06);
  --sh-2:0 12px 32px -14px rgba(20,32,30,.14);
  --sh-3:0 18px 40px -16px rgba(20,32,30,.20);
  --side:240px;
  --bs-primary:#0F5B52;
  --bs-body-bg:#F7F6F1;
  --bs-body-color:#14201E;
  --bs-border-radius:12px;
  --bs-link-color:#0F5B52;
  --bs-link-hover-color:#FF6B45;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--t-main);
  background-color:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out}
a:hover{color:var(--c-accent)}
h1,h2,h3,h4{line-height:1.3;font-weight:700;margin:0 0 14px;letter-spacing:.2px}
h1{font-size:40px}
h2{font-size:30px}
h3{font-size:20px}
p{margin:0 0 16px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
::selection{background:var(--c-mist);color:var(--c-primary-dark)}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}

/* ---------- 容器 ---------- */
.cx{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1600px){.cx{max-width:1280px}}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:46px;padding:0 24px;border-radius:var(--r-sm);border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;transition:transform .18s ease-out,background-color .18s ease-out,box-shadow .18s ease-out,color .18s ease-out;white-space:nowrap}
.btn-primary{background:var(--c-accent);color:#fff;box-shadow:0 10px 24px -14px rgba(255,107,69,.8)}
.btn-primary:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-mist);color:var(--c-primary-dark);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:#fff;color:var(--c-primary);border-color:transparent}
.btn-light:hover{background:#F2F7F5;color:var(--c-primary-dark);transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;transform:translateY(-1px)}
.btn-block{width:100%}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px}

/* ---------- 徽章 / 标签 ---------- */
.badge{display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.3px;background:var(--c-mist);color:var(--c-primary)}
.badge-accent{background:var(--c-accent);color:#fff}
.kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;letter-spacing:1.6px;color:var(--c-accent);text-transform:uppercase;margin-bottom:12px}
.kicker::before{content:"";width:22px;height:2px;background:var(--c-accent);border-radius:2px}

/* ---------- 侧栏 ---------- */
.app-sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--side);
  background:#fff;border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;padding:22px 16px 20px;
  z-index:1040;transition:transform .25s ease-out,width .25s ease-out;
}
.brand{display:flex;align-items:center;gap:11px;padding:4px 8px 18px;border-bottom:1px solid var(--c-line);margin-bottom:16px}
.brand-mark{flex:0 0 36px;width:36px;height:36px;border-radius:11px;background:var(--c-primary);color:#fff;display:grid;place-items:center}
.brand-mark svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.brand-text{font-size:15.5px;font-weight:700;color:var(--t-main);line-height:1.35}
.brand:hover .brand-text{color:var(--c-primary)}
.side-nav{display:flex;flex-direction:column;gap:6px;flex:1;overflow-y:auto;padding-right:2px}
.nav-item{position:relative;display:flex;align-items:center;gap:12px;padding:11px 12px;border-radius:var(--r-md);color:var(--t-sub);font-size:15px;font-weight:500;transition:background-color .18s ease-out,color .18s ease-out}
.nav-item > svg:first-child{flex:0 0 20px;width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.nav-label{white-space:nowrap}
.nav-arrow{flex:0 0 16px;width:16px;height:16px;margin-left:auto;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;opacity:0;transform:translateX(-6px);transition:opacity .18s ease-out,transform .18s ease-out}
.nav-item:hover{background:var(--c-mist);color:var(--c-primary)}
.nav-item:hover .nav-arrow{opacity:1;transform:translateX(0)}
.nav-item.active{background:var(--c-mist);color:var(--c-primary);font-weight:700}
.nav-item.active .nav-arrow{opacity:1;transform:translateX(0)}
.nav-item.active::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:0 3px 3px 0;background:var(--c-accent)}
.side-foot{margin-top:16px;padding-top:16px;border-top:1px solid var(--c-line);display:flex;flex-direction:column;gap:12px}
.side-motto{margin:0;font-size:13px;color:var(--t-weak);letter-spacing:.6px}
.sidebar-mask{position:fixed;inset:0;background:rgba(20,32,30,.45);opacity:0;visibility:hidden;transition:opacity .25s ease-out,visibility .25s ease-out;z-index:1035}
.sidebar-mask.show{opacity:1;visibility:visible}

/* ---------- 顶栏（移动端） ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:56px;align-items:center;gap:12px;
  padding:0 14px;background:#fff;border-bottom:1px solid var(--c-line);z-index:1030;box-shadow:var(--sh-1);
}
.menu-btn{width:44px;height:44px;display:grid;place-items:center;border:1px solid var(--c-line);border-radius:var(--r-sm);background:#fff;color:var(--c-primary);cursor:pointer}
.menu-btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.6;stroke-linecap:round}
.topbar-brand{font-size:15px;font-weight:700;color:var(--t-main);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.topbar .btn{margin-left:auto}

/* ---------- 主区域 ---------- */
.app-main,.site-footer{margin-left:var(--side)}
.app-main{min-height:60vh;padding-bottom:0}

/* ---------- 面包屑 ---------- */
.breadcrumb-nav{padding-top:26px}
.breadcrumb-nav ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--t-weak)}
.breadcrumb-nav li{display:flex;align-items:center;gap:8px}
.breadcrumb-nav li::after{content:"/";color:var(--c-line)}
.breadcrumb-nav li:last-child::after{content:""}
.breadcrumb-nav a{color:var(--t-sub)}
.breadcrumb-nav a:hover{color:var(--c-primary)}
.breadcrumb-nav [aria-current]{color:var(--c-primary);font-weight:600}

/* ---------- 页面 Hero ---------- */
.page-hero{position:relative;margin-top:24px;padding:44px 0 48px;background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;opacity:.08;pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-text h1{font-size:40px;margin:16px 0 14px}
.hero-lead{font-size:17px;color:var(--t-sub);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:26px 0 22px}
.hero-facts{display:flex;flex-wrap:wrap;gap:10px}
.hero-facts li{display:inline-flex;align-items:center;gap:7px;padding:8px 14px;border:1px solid var(--c-line);border-radius:999px;font-size:13.5px;color:var(--t-sub);background:#fff}
.hero-facts svg{width:16px;height:16px;fill:none;stroke:var(--c-primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.hero-art{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);border:1px solid var(--c-line)}
.hero-art img{width:100%;height:300px;object-fit:cover}

/* ---------- 板块 ---------- */
.section{padding:88px 0}
.section-mist{background:var(--c-mist)}
.section-white{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.sec-head{max-width:760px;margin-bottom:44px}
.sec-head h2{margin-bottom:12px}
.sec-head p{color:var(--t-sub)}

/* ---------- 图文交替 ---------- */
.feature-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:34px 0}
.feature-row + .feature-row{border-top:1px solid var(--c-line)}
.feature-row.reverse .feature-media{order:-1}
.feature-row.reverse .feature-media{margin-top:24px}
.feature-row:first-child .feature-media{margin-bottom:24px}
.feature-text h3{margin-bottom:12px}
.feature-text p{color:var(--t-sub)}
.feature-media{border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);border:1px solid var(--c-line);background:#fff}
.feature-media img{width:100%;height:288px;object-fit:cover}
.check-list{display:flex;flex-direction:column;gap:12px;margin-top:20px}
.check-list li{display:flex;gap:10px;font-size:15.5px;color:var(--t-sub)}
.check-list svg{flex:0 0 20px;width:20px;height:20px;margin-top:4px;fill:none;stroke:var(--c-success);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 数据条 ---------- */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.stat-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:26px 24px;box-shadow:var(--sh-1);transition:transform .2s ease-out,box-shadow .2s ease-out}
.stat-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.stat-num{font-size:36px;font-weight:700;color:var(--c-accent);line-height:1.15;font-variant-numeric:tabular-nums;letter-spacing:-.5px}
.stat-label{font-size:15px;font-weight:700;margin-top:8px}
.stat-desc{font-size:13.5px;color:var(--t-weak);margin-top:4px}

/* ---------- 场景卡 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px}
.scene-card{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:28px;box-shadow:var(--sh-1);transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out}
.scene-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE0DA}
.scene-card .scene-idx{display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.4px;color:var(--c-accent);margin-bottom:10px}
.scene-card h3{font-size:18px;margin-bottom:8px}
.scene-card p{color:var(--t-sub);font-size:15px}

/* ---------- 步骤 ---------- */
.step-list{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step}
.step-item{background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);padding:26px 24px;box-shadow:var(--sh-1)}
.step-item h3{font-size:17px;display:flex;align-items:center;gap:10px;margin-bottom:10px}
.step-item h3 span{font-size:15px;font-weight:700;color:#fff;background:var(--c-primary);width:28px;height:28px;border-radius:9px;display:grid;place-items:center;flex:0 0 28px;font-variant-numeric:tabular-nums}
.step-item p{font-size:14.8px;color:var(--t-sub)}

/* ---------- FAQ ---------- */
.faq-list{max-width:920px}
.faq-list .accordion-item{border:1px solid var(--c-line);border-radius:var(--r-md);background:#fff;margin-bottom:14px;overflow:hidden;box-shadow:var(--sh-1)}
.faq-list .accordion-header{margin:0;font-size:inherit;line-height:inherit}
.faq-list .accordion-button{
  position:relative;display:flex;align-items:center;gap:16px;width:100%;
  padding:20px 22px;background:#fff;color:var(--t-main);font-size:16.5px;font-weight:700;
  border:0;box-shadow:none!important;text-align:left;
}
.faq-list .accordion-button:focus{box-shadow:none!important}
.faq-list .accordion-button:not(.collapsed){color:var(--c-primary)}
.faq-list .accordion-button:not(.collapsed)::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;border-radius:0 3px 3px 0;background:var(--c-accent)}
.faq-list .accordion-button::after{
  content:"";flex:0 0 10px;width:10px;height:10px;margin-left:auto;
  border-right:2px solid var(--c-primary);border-bottom:2px solid var(--c-primary);
  background-image:none;background:none;transform:rotate(45deg);transition:transform .22s ease-out;
}
.faq-list .accordion-button:not(.collapsed)::after{transform:rotate(-135deg)}
.faq-num{flex:0 0 34px;font-size:15px;font-weight:700;color:var(--c-accent);font-variant-numeric:tabular-nums}
.faq-list .accordion-body{padding:0 22px 24px 72px;color:var(--t-sub);font-size:15.5px}

/* ---------- CTA ---------- */
.cta-wrap{padding:0 0 88px}
.cta-card{position:relative;overflow:hidden;background:var(--c-primary);color:#fff;border-radius:var(--r-lg);padding:52px 48px;display:grid;grid-template-columns:1.5fr .9fr;gap:36px;align-items:center;box-shadow:var(--sh-2)}
.cta-card::before{content:"";position:absolute;inset:0;background:url("/assets/images/backpic/back-3.png") center/cover no-repeat;opacity:.10;pointer-events:none}
.cta-card > *{position:relative}
.cta-card h2{color:#fff;margin-bottom:14px}
.cta-card p{color:#D6E5E1;max-width:560px}
.cta-actions{display:flex;flex-direction:column;gap:14px}
.cta-note{font-size:13.5px;color:#B9D2CC;margin-top:2px}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary);color:#DCE9E6;padding-top:56px;font-size:14.5px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:46px}
.f-brand .f-logo{font-size:19px;font-weight:700;color:#fff;margin-bottom:14px}
.f-brand p{color:#C2D8D3;max-width:340px;font-size:14.5px}
.f-col h4{font-size:15px;color:#fff;margin-bottom:16px}
.f-col ul{display:flex;flex-direction:column;gap:10px}
.f-col a,.f-col span{color:#C2D8D3;font-size:14.5px}
.f-col a:hover{color:var(--c-accent)}
.footer-bottom{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;border-top:1px solid rgba(255,255,255,.16);padding-top:22px;padding-bottom:26px;font-size:13.5px;color:#B9D2CC}
.to-top{color:#fff;border-bottom:1px solid rgba(255,255,255,.4);padding-bottom:2px}
.to-top:hover{color:var(--c-accent);border-color:var(--c-accent)}

/* ---------- 响应式 ---------- */
@media (min-width:992px) and (max-width:1199.98px){
  :root{--side:88px}
  .app-sidebar{padding:22px 12px;align-items:center}
  .brand{justify-content:center;padding:4px 0 16px;width:100%}
  .brand-text{display:none}
  .side-nav{width:100%;align-items:center}
  .nav-label,.nav-arrow{display:none}
  .nav-item{justify-content:center;padding:14px 0;width:56px}
  .side-foot{display:none}
  .nav-item::after{
    content:attr(data-tip);position:absolute;left:70px;top:50%;transform:translateY(-50%) scale(.96);
    background:#14201E;color:#fff;font-size:13px;font-weight:500;padding:6px 12px;border-radius:8px;
    white-space:nowrap;opacity:0;pointer-events:none;transition:opacity .18s ease-out,transform .18s ease-out;z-index:6;
  }
  .nav-item:hover::after{opacity:1;transform:translateY(-50%) scale(1)}
}
@media (max-width:991.98px){
  .app-sidebar{width:290px;transform:translateX(-100%);box-shadow:var(--sh-3)}
  .app-sidebar.open{transform:translateX(0)}
  .app-main,.site-footer{margin-left:0}
  .app-main{padding-top:56px}
  .topbar{display:flex}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-art img{height:240px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767.98px){
  h1{font-size:28px}
  h2{font-size:24px}
  .hero-text h1{font-size:28px}
  .section{padding:56px 0}
  .cta-wrap{padding-bottom:56px}
  .feature-row{grid-template-columns:1fr;gap:24px;padding:26px 0}
  .feature-row.reverse .feature-media{order:0;margin-top:0}
  .feature-row .feature-media{margin:0!important}
  .feature-media img{height:220px}
  .stat-grid{grid-template-columns:1fr 1fr}
  .scene-grid{grid-template-columns:1fr}
  .step-list{grid-template-columns:1fr}
  .cta-card{grid-template-columns:1fr;padding:34px 24px}
  .cta-actions{flex-direction:row;flex-wrap:wrap}
  .cta-actions .btn{flex:1 1 160px}
  .faq-list .accordion-body{padding-left:22px}
}
@media (max-width:575.98px){
  .cx{padding:0 18px}
  .page-hero{padding:32px 0 36px}
  .hero-actions .btn{width:100%}
  .stat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .btn{min-height:44px}
}

/* roulang page: article */
:root{
  --c-primary:#0F5B52;
  --c-primary-deep:#0B453E;
  --c-primary-soft:rgba(15,91,82,.10);
  --c-accent:#FF6B45;
  --c-accent-deep:#E8552F;
  --c-mist:#E6EFEC;
  --c-line:#E3E8E5;
  --c-bg:#F7F6F1;
  --c-card:#FFFFFF;
  --c-text:#14201E;
  --c-text-2:#5C6B67;
  --c-text-3:#8C9A96;
  --c-ok:#2F9E6B;
  --c-err:#E0483D;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(20,32,30,.06);
  --sh-2:0 12px 32px -14px rgba(20,32,30,.14);
  --sh-3:0 18px 40px -16px rgba(20,32,30,.20);
  --side-w:240px;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --bs-primary:#0F5B52;
  --bs-primary-rgb:15,91,82;
  --bs-body-bg:#F7F6F1;
  --bs-body-color:#14201E;
  --bs-border-color:#E3E8E5;
  --bs-border-radius:12px;
  --bs-link-color:#0F5B52;
  --bs-link-hover-color:#E8552F;
  --bs-font-sans-serif:var(--font);
  --bs-body-font-family:var(--font);
  --bs-emphasis-color:#14201E;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16.5px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease,opacity .18s ease}
a:hover{color:var(--c-accent)}
h1,h2,h3,h4{line-height:1.3;font-weight:700;margin:0;color:var(--c-text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}
.cx{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1600px){.cx{max-width:1280px}}
@media (max-width:575px){.cx{padding:0 16px}}

/* ---------- 按钮 ---------- */
.btn-warm,.btn-line,.btn-quiet{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  cursor:pointer;
}
.btn-warm{background:var(--c-accent);color:#fff;box-shadow:0 10px 24px -14px rgba(255,107,69,.75)}
.btn-warm:hover{background:var(--c-accent-deep);color:#fff;transform:translateY(-1px);box-shadow:0 16px 32px -16px rgba(255,107,69,.85)}
.btn-warm:active{transform:translateY(0)}
.btn-line{background:transparent;color:var(--c-primary);border-color:rgba(15,91,82,.42)}
.btn-line:hover{background:var(--c-primary-soft);color:var(--c-primary-deep);border-color:var(--c-primary);transform:translateY(-1px)}
.btn-line:active{transform:translateY(0)}
.btn-quiet{background:rgba(255,255,255,.12);color:#fff;border-color:rgba(255,255,255,.28)}
.btn-quiet:hover{background:rgba(255,255,255,.2);color:#fff;transform:translateY(-1px)}
.btn-sm{padding:0 16px;min-height:40px;font-size:14px}
.btn-block{width:100%}

/* ---------- 侧栏 App Shell ---------- */
.side-shell{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);z-index:1035;
  display:flex;flex-direction:column;
  background:var(--c-primary);
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  padding:22px 16px;overflow-y:auto;
}
.side-shell::before{
  content:"";position:absolute;inset:0;background:rgba(11,69,62,.72);pointer-events:none;
}
.side-shell>*{position:relative}
.brand{display:flex;align-items:center;gap:10px;padding:6px 8px;border-radius:var(--r-md);color:#fff}
.brand:hover{color:#fff}
.brand-mark{
  flex:0 0 38px;width:38px;height:38px;border-radius:12px;
  background:rgba(255,255,255,.14);color:#fff;
  display:grid;place-items:center;
}
.brand-mark svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.brand-text strong{display:block;font-size:15px;line-height:1.35;letter-spacing:.3px}
.brand-text em{display:block;font-style:normal;font-size:12px;color:rgba(247,246,241,.62);letter-spacing:.6px;margin-top:2px}
.side-nav{display:flex;flex-direction:column;gap:6px;margin-top:26px;flex:1 1 auto}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  min-height:46px;padding:11px 14px;border-radius:var(--r-sm);
  color:rgba(247,246,241,.82);font-size:15px;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.nav-item svg{width:20px;height:20px;flex:0 0 20px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.nav-label{flex:1 1 auto;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.nav-arrow{width:16px !important;height:16px !important;flex:0 0 16px;opacity:0;transform:translateX(-6px);transition:opacity .18s ease,transform .18s ease}
.nav-item:hover{background:rgba(255,255,255,.10);color:#fff}
.nav-item:hover .nav-arrow{opacity:.85;transform:translateX(0)}
.nav-item.active{background:var(--c-mist);color:var(--c-primary);font-weight:600}
.nav-item.active .nav-arrow{opacity:.7;transform:translateX(0)}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:999px;background:var(--c-accent);
}
.side-foot{
  margin-top:18px;padding:16px;border-radius:var(--r-md);
  background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.14);
}
.side-foot-t{font-size:14px;font-weight:700;color:#fff;margin-bottom:4px}
.side-foot-d{font-size:12.5px;color:rgba(247,246,241,.7);margin-bottom:12px;line-height:1.6}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  position:fixed;top:0;left:0;right:0;height:56px;z-index:1040;
  background:var(--c-primary);display:none;align-items:center;
  box-shadow:0 6px 18px -12px rgba(20,32,30,.6);
}
.topbar-inner{display:flex;align-items:center;gap:12px;width:100%;padding:0 14px}
.hamburger{
  width:44px;height:44px;flex:0 0 44px;display:grid;place-items:center;
  background:rgba(255,255,255,.14);border:0;border-radius:var(--r-sm);color:#fff;cursor:pointer;
  transition:background .18s ease;
}
.hamburger:hover{background:rgba(255,255,255,.24)}
.hamburger svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round}
.topbar-logo{font-size:16px;font-weight:700;color:#fff;margin-right:auto}
.topbar-logo:hover{color:#fff}

/* ---------- 抽屉 ---------- */
.drawer-nav{--bs-offcanvas-width:300px;background:var(--c-primary);color:#fff;border:0}
.drawer-nav .offcanvas-header{padding:16px 18px;border-bottom:1px solid rgba(255,255,255,.14)}
.drawer-nav .offcanvas-header span{font-size:16px;font-weight:700;color:#fff}
.drawer-nav .offcanvas-body{padding:14px 16px 28px}
.drawer-nav .side-nav{margin-top:6px;flex:0 0 auto}
.drawer-nav .side-foot{margin-top:20px}

/* ---------- 主区域 ---------- */
.site-main{margin-left:var(--side-w);padding:30px 0 0;min-height:64vh}
.site-footer{margin-left:var(--side-w)}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-text-3);padding:2px 0 18px}
.crumbs a{color:var(--c-text-2)}
.crumbs a:hover{color:var(--c-accent)}
.crumbs .sep{color:#B9C4C0}
.crumbs .now{color:var(--c-text);font-weight:600;max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.article-head{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:34px 32px 0;box-shadow:var(--sh-1);overflow:hidden;
}
.article-head h1{font-size:40px;letter-spacing:-.2px}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;
  margin:24px -32px 0;padding:15px 32px;
  background:var(--c-mist);font-size:14px;color:var(--c-text-2);
}
.article-meta .dot{width:3px;height:3px;border-radius:50%;background:#A9B7B2}
.badge-cat{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--c-accent);color:#fff;font-size:12px;font-weight:600;letter-spacing:.2px;
}
.badge-cat:hover{color:#fff;background:var(--c-accent-deep)}
.meta-item{display:inline-flex;align-items:center;gap:6px}
.meta-item svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;color:var(--c-text-3)}

/* ---------- 布局 ---------- */
.article-layout{padding-bottom:8px}
.article-col{min-width:0}

/* ---------- 正文 ---------- */
.article-body{
  margin-top:22px;max-width:824px;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:36px 32px;box-shadow:var(--sh-1);
}
.article-body h2{
  font-size:30px;margin:42px 0 16px;padding-left:14px;
  border-left:3px solid var(--c-primary);letter-spacing:-.2px;
}
.article-body h2:first-child{margin-top:0}
.article-body h3{font-size:20px;margin:30px 0 12px;color:var(--c-primary)}
.article-body h4{font-size:17px;margin:22px 0 10px}
.article-body p{margin-bottom:1.4em;line-height:1.9;color:#26332F}
.article-body ul,.article-body ol{margin:0 0 1.4em;padding-left:1.5em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.55em;line-height:1.85;color:#26332F}
.article-body li::marker{color:var(--c-accent);font-weight:700}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--c-mist);
  border-left:3px solid var(--c-primary);border-radius:0 var(--r-md) var(--r-md) 0;
  color:#26332F;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-md);margin:10px 0}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--c-text-3);text-align:center;margin-top:10px}
.article-body a{color:var(--c-primary);text-decoration:underline;text-decoration-color:rgba(15,91,82,.35);text-underline-offset:3px}
.article-body a:hover{color:var(--c-accent)}
.article-body strong{color:var(--c-text)}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:32px 0}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;
  margin:22px 0;font-size:15px;
}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:11px 14px;text-align:left;white-space:nowrap}
.article-body th{background:var(--c-mist);font-weight:600;color:var(--c-primary)}
.article-body code{background:var(--c-mist);border-radius:6px;padding:2px 6px;font-size:14px;color:var(--c-primary-deep)}

/* ---------- 空态 ---------- */
.empty-state{
  padding:56px 24px;text-align:center;
}
.empty-state .es-ico{
  width:56px;height:56px;margin:0 auto 18px;border-radius:50%;
  background:var(--c-mist);display:grid;place-items:center;color:var(--c-primary);
}
.empty-state .es-ico svg{width:26px;height:26px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--c-text-2);margin-bottom:22px}

/* ---------- 标签 / 分享 ---------- */
.article-foot{
  margin-top:22px;max-width:824px;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:18px 22px;display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.tag-row .tag-title{font-size:14px;color:var(--c-text-3);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--c-mist);color:var(--c-primary);font-size:13px;font-weight:600;
  transition:background .18s ease,color .18s ease;
}
.tag:hover{background:var(--c-primary);color:#fff}
.share-row{display:flex;align-items:center;gap:10px}
.share-row .share-title{font-size:14px;color:var(--c-text-3)}
.btn-copy{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;
  border-radius:999px;border:1px solid rgba(15,91,82,.32);background:transparent;
  color:var(--c-primary);font-size:14px;font-weight:600;cursor:pointer;
  transition:background .18s ease,color .18s ease,transform .18s ease,border-color .18s ease;
}
.btn-copy svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}
.btn-copy:hover{background:var(--c-primary);color:#fff;border-color:var(--c-primary);transform:translateY(-1px)}
.btn-copy:active{transform:translateY(0)}

/* ---------- 上下篇 ---------- */
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:22px;max-width:824px}
.pager-link{
  display:block;background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:18px 20px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.pager-link:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,91,82,.3);color:inherit}
.pager-link .k{display:block;font-size:13px;color:var(--c-text-3);margin-bottom:6px}
.pager-link .t{display:block;font-size:16px;font-weight:600;color:var(--c-text);line-height:1.5}
.pager-link:hover .t{color:var(--c-primary)}
.pager-link.next{text-align:right}

/* ---------- 通用板块头 ---------- */
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:22px}
.sec-head h2{font-size:30px;position:relative;padding-bottom:12px;letter-spacing:-.2px}
.sec-head h2::after{content:"";position:absolute;left:0;bottom:0;width:52px;height:3px;border-radius:999px;background:var(--c-accent)}
.sec-head .sec-more{font-size:14px;font-weight:600;color:var(--c-primary);display:inline-flex;align-items:center;gap:6px}
.sec-head .sec-more:hover{color:var(--c-accent)}
.sec-head .sec-more svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 相关推荐 ---------- */
.related{margin-top:56px}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{
  display:flex;gap:14px;align-items:flex-start;
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:16px;box-shadow:var(--sh-1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.rel-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(15,91,82,.28);color:inherit}
.rel-thumb{flex:0 0 96px;width:96px;height:72px;border-radius:var(--r-sm);overflow:hidden;background:var(--c-mist)}
.rel-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.rel-card:hover .rel-thumb img{transform:scale(1.05)}
.rel-body{min-width:0}
.rel-body .rt{font-size:15px;font-weight:600;line-height:1.5;color:var(--c-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-card:hover .rt{color:var(--c-primary)}
.rel-body .rd{font-size:13px;color:var(--c-text-3);margin-top:6px}
.back-line{margin-top:26px;font-size:14px;font-weight:600}
.back-line a{display:inline-flex;align-items:center;gap:6px}
.back-line svg{width:15px;height:15px;fill:none;stroke:currentColor;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round}

/* ---------- 目录 ---------- */
.toc-col{display:none}
.toc-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:18px;box-shadow:var(--sh-1);
}
.toc-card + .toc-card{margin-top:18px}
.toc-card .toc-title{font-size:14px;font-weight:600;color:var(--c-text-3);letter-spacing:.06em;margin-bottom:12px;padding-left:2px}
.toc-list a{
  display:block;font-size:14px;line-height:1.5;color:var(--c-text-2);
  padding:7px 10px;border-radius:8px;border-left:2px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.toc-list a:hover{background:var(--c-mist);color:var(--c-primary)}
.toc-list a.active{background:var(--c-mist);color:var(--c-primary);border-left-color:var(--c-accent);font-weight:600}
.toc-list a.lvl-3{padding-left:24px;font-size:13.5px;color:var(--c-text-3)}
.toc-list a.lvl-3.active{color:var(--c-primary)}
.toc-empty{font-size:13.5px;color:var(--c-text-3);padding:0 2px}
.side-cta{
  background:var(--c-primary);color:rgba(247,246,241,.86);
  border-radius:var(--r-md);padding:20px;border:1px solid rgba(255,255,255,.08);
}
.side-cta h3{font-size:16px;color:#fff;margin-bottom:8px}
.side-cta p{font-size:13.5px;line-height:1.7;margin-bottom:14px}
.toc-mobile{
  display:block;margin-top:20px;background:var(--c-card);border:1px solid var(--c-line);
  border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;max-width:824px;
}
.toc-mobile summary{
  list-style:none;cursor:pointer;padding:15px 18px;font-weight:600;font-size:15px;
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary svg{width:16px;height:16px;fill:none;stroke:var(--c-text-3);stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease}
.toc-mobile[open] summary svg{transform:rotate(90deg)}
.toc-mobile .toc-list{padding:0 10px 14px}

/* ---------- 底部 CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;margin-top:64px;
  background:var(--c-primary);border-radius:var(--r-lg);
  padding:46px 40px;color:rgba(247,246,241,.88);
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.10;pointer-events:none;
}
.cta-inner{position:relative;display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between}
.cta-inner .cta-copy{max-width:600px}
.cta-inner h2{color:#fff;font-size:30px;margin-bottom:10px}
.cta-inner p{font-size:15.5px;line-height:1.8}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:64px;background:var(--c-primary);color:rgba(247,246,241,.8);padding-top:50px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1.1fr 1.3fr;gap:34px;padding-bottom:36px}
.f-logo{font-size:18px;font-weight:700;color:#fff;margin-bottom:12px;letter-spacing:.3px}
.f-brand p{font-size:14px;line-height:1.8;color:rgba(247,246,241,.72);max-width:34ch}
.f-col h4{font-size:15px;color:#fff;margin-bottom:14px;font-weight:700}
.f-col ul li{margin-bottom:10px;font-size:14px;line-height:1.7}
.f-col a{color:rgba(247,246,241,.78)}
.f-col a:hover{color:var(--c-accent)}
.f-col span{color:rgba(247,246,241,.62);font-size:13.5px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  border-top:1px solid rgba(255,255,255,.14);padding-top:20px;padding-bottom:26px;
  font-size:13.5px;color:rgba(247,246,241,.66);
}
.to-top{color:rgba(247,246,241,.85);font-weight:600}
.to-top:hover{color:var(--c-accent)}

/* ---------- 响应式 ---------- */
@media (min-width:1200px){
  .article-layout{display:grid;grid-template-columns:minmax(0,1fr) 240px;gap:34px;align-items:start}
  .toc-col{display:block;position:sticky;top:26px}
  .toc-mobile{display:none}
}
@media (min-width:992px) and (max-width:1199px){
  .side-shell{width:88px;padding:18px 10px}
  .brand{justify-content:center;padding:6px 0}
  .brand-text{display:none}
  .nav-item{justify-content:center;padding:12px 0}
  .nav-item .nav-label,.nav-item .nav-arrow{display:none}
  .side-foot{display:none}
  .site-main{margin-left:88px}
  .site-footer{margin-left:88px}
  .article-head h1{font-size:34px}
}
@media (max-width:991px){
  .side-shell{display:none}
  .topbar{display:flex}
  .site-main{margin-left:0;padding-top:76px}
  .site-footer{margin-left:0}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-grid .f-brand{grid-column:1 / -1}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{padding:36px 26px}
}
@media (max-width:767px){
  body{font-size:16px}
  .article-head{padding:24px 20px 0}
  .article-head h1{font-size:28px}
  .article-meta{margin:20px -20px 0;padding:13px 20px;gap:8px 14px}
  .article-body{padding:24px 20px;border-radius:14px}
  .article-body h2{font-size:24px;margin:34px 0 14px}
  .article-body h3{font-size:18.5px}
  .sec-head h2,.cta-inner h2{font-size:24px}
  .pager{grid-template-columns:1fr}
  .pager-link.next{text-align:left}
  .cta-band{margin-top:48px;border-radius:14px}
  .cta-actions{width:100%}
  .cta-actions .btn-warm,.cta-actions .btn-quiet{flex:1 1 auto}
}
@media (max-width:575px){
  .rel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .article-foot{flex-direction:column;align-items:flex-start}
  .crumbs .now{white-space:normal;max-width:100%}
}

/* roulang page: category2 */
:root{
  --c-primary:#0F5B52;
  --c-primary-dark:#0B463F;
  --c-accent:#FF6B45;
  --c-accent-dark:#E85A36;
  --c-mist:#E6EFEC;
  --c-line:#E3E8E5;
  --c-bg:#F7F6F1;
  --c-card:#FFFFFF;
  --c-ink:#14201E;
  --c-ink2:#5C6B67;
  --c-ink3:#8C9A96;
  --c-ok:#2F9E6B;
  --c-err:#E0483D;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(20,32,30,.06);
  --sh-2:0 12px 32px -14px rgba(20,32,30,.14);
  --sh-3:0 18px 40px -16px rgba(20,32,30,.20);
  --side-w:240px;
  --bs-body-bg:#F7F6F1;
  --bs-body-color:#14201E;
  --bs-primary:#0F5B52;
  --bs-link-color:#0F5B52;
  --bs-link-hover-color:#0B463F;
  --bs-border-radius:12px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{line-height:1.3;font-weight:700;margin:0;color:var(--c-ink)}
p{margin:0}
a{color:var(--c-primary);text-decoration:none}
a:hover{color:var(--c-primary-dark)}
img{max-width:100%;display:block}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}
.cx{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
@media (min-width:1600px){.cx{max-width:1280px}}

/* ---------- 侧栏 ---------- */
.app-side{
  position:fixed;top:0;left:0;bottom:0;width:var(--side-w);
  background:#fff;border-right:1px solid var(--c-line);
  display:flex;flex-direction:column;gap:18px;padding:26px 16px 20px;
  z-index:1045;transition:width .2s ease-out,transform .24s ease-out;
}
.brand{display:flex;align-items:center;gap:10px;padding:2px 6px;text-decoration:none}
.brand-mark{width:36px;height:36px;flex:0 0 36px;border-radius:10px;background:var(--c-primary);display:flex;align-items:center;justify-content:center}
.brand-mark svg{width:20px;height:20px;stroke:#fff;fill:none;stroke-width:1.5}
.brand-text{font-size:16px;font-weight:700;color:var(--c-ink);letter-spacing:.01em}
.brand-sub{display:block;font-size:11px;color:var(--c-ink3);font-weight:400;letter-spacing:.06em}
.side-nav{display:flex;flex-direction:column;gap:4px;flex:1 1 auto;overflow-y:auto;padding:2px 0}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  padding:11px 14px 11px 18px;border-radius:var(--r-md);
  color:var(--c-ink2);font-size:15px;font-weight:500;
  transition:background .18s ease-out,color .18s ease-out;
}
.nav-item svg{width:20px;height:20px;flex:0 0 20px;stroke:currentColor;fill:none;stroke-width:1.5}
.nav-item .nav-arrow{width:16px;height:16px;flex:0 0 16px;margin-left:auto;opacity:0;transform:translateX(0);transition:opacity .18s ease-out,transform .18s ease-out}
.nav-item:hover{background:var(--c-mist);color:var(--c-primary)}
.nav-item:hover .nav-arrow{opacity:.65;transform:translateX(6px)}
.nav-item.active{background:var(--c-mist);color:var(--c-primary);font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:20px;border-radius:2px;background:var(--c-accent);
}
.side-note{
  background:var(--c-mist);border-radius:var(--r-md);padding:14px 16px;
  font-size:13px;color:var(--c-ink2);line-height:1.7;
}
.side-note strong{display:block;color:var(--c-primary);font-size:13.5px;margin-bottom:4px}
.side-note a{display:inline-block;margin-top:8px;font-weight:600;font-size:13px;color:var(--c-accent-dark)}

/* ---------- 移动顶栏 ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:1030;height:56px;
  align-items:center;gap:10px;padding:0 14px;background:#fff;
  border-bottom:1px solid var(--c-line);box-shadow:var(--sh-1);
}
.burger{width:40px;height:40px;border:1px solid var(--c-line);background:#fff;border-radius:10px;display:flex;align-items:center;justify-content:center;cursor:pointer}
.burger svg{width:20px;height:20px;stroke:var(--c-ink);fill:none;stroke-width:1.6}
.topbar-brand{font-size:15px;font-weight:700;color:var(--c-ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1 1 auto}
.backdrop{display:none;position:fixed;inset:0;background:rgba(20,32,30,.45);z-index:1040}
.backdrop.show{display:block}

/* ---------- 主区 ---------- */
.shell-main{margin-left:var(--side-w);min-height:100vh}

/* ---------- 通用组件 ---------- */
.btn-cx{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:background .18s ease-out,box-shadow .18s ease-out,transform .18s ease-out,color .18s ease-out;
}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 10px 24px -14px rgba(255,107,69,.9)}
.btn-accent:hover{background:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-accent:active{transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--c-primary);border-color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-mist);color:var(--c-primary-dark);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{min-height:40px;padding:0 16px;font-size:14px}
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;
  background:var(--c-mist);color:var(--c-primary);
}
.tag-accent{background:var(--c-accent);color:#fff}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--c-accent-dark);letter-spacing:.08em;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--c-accent)}
.section{padding:88px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:30px;margin-bottom:14px;position:relative;padding-bottom:14px}
.section-head h2::after{content:"";position:absolute;left:0;bottom:0;width:56px;height:3px;border-radius:2px;background:var(--c-accent)}
.section-head p{color:var(--c-ink2);font-size:16.5px}
.mist{background:var(--c-mist)}

/* ---------- Hero ---------- */
.page-hero{
  padding:64px 0 72px;
  background:
    radial-gradient(circle at 10% 18%, rgba(15,91,82,.07), transparent 46%),
    radial-gradient(circle at 92% 8%, rgba(255,107,69,.09), transparent 42%),
    var(--c-bg);
  border-bottom:1px solid var(--c-line);
}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--c-ink3);margin-bottom:20px}
.crumbs a{color:var(--c-ink2)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs span[aria-current]{color:var(--c-ink)}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center}
.hero-copy h1{font-size:40px;margin:14px 0 18px;letter-spacing:-.01em}
.hero-copy .lead{font-size:17px;color:var(--c-ink2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;margin-top:36px;padding-top:24px;border-top:1px solid var(--c-line)}
.hero-stats .num{font-size:26px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums}
.hero-stats .lbl{font-size:13px;color:var(--c-ink3)}
.hero-fig{margin:0;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-2);border:1px solid var(--c-line);background:#fff}
.hero-fig img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/11}
.hero-fig figcaption{font-size:13px;color:var(--c-ink3);padding:12px 18px}

/* ---------- 时间轴 ---------- */
.timeline{position:relative;margin-top:16px}
.timeline::before{
  content:"";position:absolute;top:6px;bottom:6px;left:50%;width:1px;transform:translateX(-.5px);
  background:linear-gradient(180deg,transparent,var(--c-line) 6%,var(--c-line) 94%,transparent);
}
.tl-item{display:grid;grid-template-columns:1fr 72px 1fr;align-items:center;margin-bottom:34px}
.tl-item:last-child{margin-bottom:0}
.tl-side:empty{visibility:hidden}
.tl-mid{display:flex;justify-content:center}
.tl-dot{width:14px;height:14px;border-radius:50%;background:var(--c-accent);box-shadow:0 0 0 6px rgba(255,107,69,.14)}
.tl-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);
  padding:24px 26px;box-shadow:var(--sh-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.tl-time{font-size:13px;font-weight:600;color:var(--c-accent-dark);font-variant-numeric:tabular-nums;letter-spacing:.02em}
.tl-card h3{font-size:19px;margin:10px 0 10px}
.tl-card p{font-size:15.5px;color:var(--c-ink2)}
.tl-card img{margin-top:16px;border-radius:var(--r-md);width:100%;aspect-ratio:16/9;object-fit:cover}

/* ---------- 指标数据卡 ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.metric{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh-1);transition:box-shadow .18s ease-out,transform .18s ease-out;
}
.metric:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.metric .val{font-size:32px;font-weight:700;color:var(--c-primary);font-variant-numeric:tabular-nums;line-height:1.2}
.metric .val em{font-size:15px;font-style:normal;color:var(--c-ink3);margin-left:4px;font-weight:500}
.metric .cap{font-size:14.5px;font-weight:600;margin-top:8px}
.metric .desc{font-size:13.5px;color:var(--c-ink3);margin-top:6px}

/* ---------- 阅读路径卡 ---------- */
.path-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.path-card{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.path-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3)}
.path-card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.path-body{padding:24px 26px 28px}
.path-body h3{font-size:19px;margin-bottom:10px}
.path-body p{font-size:15px;color:var(--c-ink2)}
.path-list{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.path-list li{position:relative;padding-left:18px;font-size:14.5px;color:var(--c-ink2)}
.path-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:50%;background:var(--c-accent)}

/* ---------- 要点行 ---------- */
.rows{border-top:1px solid var(--c-line);margin-top:8px}
.row-item{
  display:grid;grid-template-columns:180px 1fr;gap:24px;align-items:start;
  padding:22px 18px;border-bottom:1px solid var(--c-line);
  transition:background .18s ease-out;
}
.row-item:hover{background:var(--c-mist)}
.row-item .row-label{font-weight:600;color:var(--c-primary);font-size:15.5px}
.row-item .row-text{font-size:15.5px;color:var(--c-ink2)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px}
.faq-item{
  background:#fff;border:1px solid var(--c-line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;transition:box-shadow .18s ease-out;
}
.faq-item:hover{box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--c-ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-num{font-variant-numeric:tabular-nums;color:var(--c-accent);font-weight:700;font-size:14px;min-width:26px}
.faq-icon{margin-left:auto;width:18px;height:18px;flex:0 0 18px;stroke:var(--c-ink3);fill:none;stroke-width:1.6;transition:transform .2s ease-out}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--c-accent),var(--sh-1)}
.faq-item[open] .faq-icon{transform:rotate(90deg);stroke:var(--c-primary)}
.faq-body{padding:0 22px 20px 62px;color:var(--c-ink2);font-size:15.5px}

/* ---------- CTA ---------- */
.cta-card{
  background:var(--c-primary);color:#EAF2EF;border-radius:var(--r-lg);
  padding:48px 52px;display:grid;grid-template-columns:1.2fr .8fr;gap:36px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-card::after{
  content:"";position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,69,.35),transparent 68%);
}
.cta-card h2{color:#fff;font-size:28px;margin-bottom:14px;position:relative;z-index:1}
.cta-card p{color:#CFE0DB;font-size:16px;position:relative;z-index:1}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1}
.cta-card .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.cta-card .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-primary);color:#EAF2EF;margin-top:88px;padding-top:56px;font-size:15px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.f-logo{font-size:20px;font-weight:700;color:#fff;margin-bottom:12px}
.f-brand p{color:#CFE0DB;font-size:14.5px;max-width:320px}
.f-col h4{color:#fff;font-size:15px;margin-bottom:14px;font-weight:600}
.f-col ul{display:flex;flex-direction:column;gap:10px}
.f-col a{color:#CFE0DB}
.f-col a:hover{color:var(--c-accent)}
.f-col span{color:#BFD4CE;font-size:14.5px}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  padding-top:20px;padding-bottom:28px;border-top:1px solid rgba(255,255,255,.14);
  font-size:13.5px;color:#BFD4CE;
}
.to-top{color:#EAF2EF;font-weight:600}
.to-top:hover{color:var(--c-accent)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px) and (min-width:992px){
  :root{--side-w:88px}
  .app-side{padding:22px 10px;gap:14px}
  .brand{justify-content:center;padding:0}
  .brand-text,.side-note{display:none}
  .nav-item{justify-content:center;padding:12px 0}
  .nav-item .nav-label{display:none}
  .nav-item:hover .nav-label{
    display:block;position:absolute;left:74px;top:50%;transform:translateY(-50%);
    background:var(--c-ink);color:#fff;font-size:13px;font-weight:500;
    padding:6px 12px;border-radius:8px;white-space:nowrap;z-index:20;
  }
  .nav-item:hover .nav-arrow{opacity:0;transform:none}
  .metric-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  .topbar{display:flex}
  .app-side{width:280px;max-width:84vw;transform:translateX(-100%);box-shadow:var(--sh-3)}
  .app-side.open{transform:translateX(0)}
  .shell-main{margin-left:0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-copy h1{font-size:32px}
  .section{padding:64px 0}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-card{grid-template-columns:1fr;padding:36px 30px}
  .path-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767.98px){
  .cx{padding:0 20px}
  .section{padding:56px 0}
  .section-head h2{font-size:24px}
  .hero-copy h1{font-size:28px}
  .hero-copy .lead{font-size:16px}
  .hero-actions .btn-cx{width:100%}
  .hero-stats{gap:20px}
  .metric-grid{grid-template-columns:1fr}
  .path-grid{grid-template-columns:1fr}
  .timeline::before{left:21px}
  .tl-item{grid-template-columns:44px 1fr;gap:14px;margin-bottom:26px}
  .tl-mid{grid-column:1;grid-row:1;justify-content:flex-start}
  .tl-side{grid-column:2;grid-row:1}
  .tl-side:empty{display:none}
  .tl-card{padding:20px}
  .row-item{grid-template-columns:1fr;gap:6px;padding:18px 12px}
  .faq-body{padding-left:22px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
  .cta-card h2{font-size:23px}
}

/* roulang page: category4 */
:root{
  --c-primary:#0F5B52;
  --c-primary-700:#0A423C;
  --c-accent:#FF6B45;
  --c-accent-700:#E8512C;
  --c-mist:#E6EFEC;
  --c-hover:#F1F6F4;
  --c-line:#E3E8E5;
  --c-bg:#F7F6F1;
  --c-card:#FFFFFF;
  --c-text:#14201E;
  --c-text-2:#5C6B67;
  --c-text-3:#8C9A96;
  --c-ok:#2F9E6B;
  --c-err:#E0483D;
  --r-lg:16px;
  --r-xl:20px;
  --r-md:12px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(20,32,30,.06);
  --sh-2:0 12px 32px -14px rgba(20,32,30,.14);
  --sh-3:0 18px 40px -16px rgba(20,32,30,.20);
  --sidebar-w:240px;
  --bs-body-bg:#F7F6F1;
  --bs-body-color:#14201E;
  --bs-primary:#0F5B52;
  --bs-primary-rgb:15,91,82;
  --bs-link-color:#0F5B52;
  --bs-link-hover-color:#E8512C;
  --bs-border-color:#E3E8E5;
  --bs-border-radius:12px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.8;
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--c-text);}
p{margin:0;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-accent-700);}
img{display:block;max-width:100%;height:auto;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}

/* ============ 容器 ============ */
.cx{width:100%;max-width:1200px;margin:0 auto;padding:0 28px;}
@media (min-width:1600px){.cx{max-width:1280px;}}

/* ============ 侧栏 ============ */
.app-sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:#fff;
  border-right:1px solid var(--c-line);
  display:flex;
  flex-direction:column;
  padding:22px 14px 18px;
  z-index:1045;
  overflow-y:auto;
  transition:transform .24s ease,width .2s ease;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  padding:6px 8px 22px;
  color:var(--c-text);
}
.brand:hover{color:var(--c-primary);}
.brand-mark{
  width:38px;height:38px;flex:none;
  border-radius:11px;
  background:var(--c-primary);
  display:grid;place-items:center;
}
.brand-mark svg{width:22px;height:22px;stroke:#fff;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.brand-text{font-size:14px;font-weight:700;line-height:1.3;letter-spacing:.01em;}
.side-nav{display:flex;flex-direction:column;gap:4px;}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  min-height:44px;
  padding:12px 12px 12px 14px;
  border-radius:var(--r-sm);
  color:var(--c-text-2);
  font-size:14.5px;
  font-weight:500;
  transition:background .18s ease,color .18s ease;
}
.nav-item > svg:first-child{width:22px;height:22px;flex:none;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}
.nav-label{flex:1;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.nav-arrow{width:16px;height:16px;flex:none;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;opacity:0;transform:translateX(-6px);transition:opacity .18s ease,transform .18s ease;}
.nav-item:hover{background:var(--c-mist);color:var(--c-primary);}
.nav-item:hover .nav-arrow{opacity:1;transform:translateX(0);}
.nav-item.active{background:var(--c-mist);color:var(--c-primary);font-weight:600;}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:50%;
  transform:translateY(-50%);
  width:3px;height:22px;border-radius:3px;
  background:var(--c-accent);
}
.sidebar-foot{
  margin-top:auto;
  background:var(--c-mist);
  border-radius:var(--r-md);
  padding:16px 14px;
  font-size:13px;
  line-height:1.65;
  color:var(--c-text-2);
}
.sidebar-foot strong{display:block;font-size:13.5px;color:var(--c-primary);margin-bottom:6px;}
.sidebar-foot a{display:inline-flex;align-items:center;gap:6px;margin-top:10px;font-weight:600;font-size:13px;color:var(--c-primary);}
.sidebar-foot a:hover{color:var(--c-accent-700);}
.sidebar-foot svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}

.sidebar-mask{
  position:fixed;inset:0;
  background:rgba(20,32,30,.45);
  opacity:0;visibility:hidden;
  transition:opacity .2s ease,visibility .2s ease;
  z-index:1040;
}
.sidebar-mask.show{opacity:1;visibility:visible;}

.app-main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
.app-main > main{flex:1;}

/* ============ 移动端顶栏 ============ */
.mobile-bar{
  display:none;
  position:sticky;top:0;z-index:1030;
  height:56px;
  align-items:center;
  gap:12px;
  padding:0 16px;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--c-line);
}
.burger{
  width:44px;height:44px;flex:none;
  border:1px solid var(--c-line);
  background:#fff;border-radius:var(--r-sm);
  display:grid;place-items:center;cursor:pointer;padding:0;
  transition:background .18s ease,border-color .18s ease;
}
.burger:hover{background:var(--c-mist);border-color:#D2DFDB;}
.burger svg{width:20px;height:20px;stroke:var(--c-text);fill:none;stroke-width:1.5;stroke-linecap:round;}
.mobile-brand{font-size:15px;font-weight:700;color:var(--c-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.mobile-bar .bar-cta{margin-left:auto;}

/* ============ 按钮 ============ */
.btn-x{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  border-radius:var(--r-sm);
  border:1px solid transparent;
  font-size:15.5px;font-weight:600;
  cursor:pointer;white-space:nowrap;
  transition:background .18s ease,color .18s ease,transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-x.primary{background:var(--c-accent);color:#fff;}
.btn-x.primary:hover{background:var(--c-accent-700);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(255,107,69,.75);}
.btn-x.primary:active{transform:translateY(0);box-shadow:none;}
.btn-x.ghost{border-color:var(--c-primary);color:var(--c-primary);background:transparent;}
.btn-x.ghost:hover{background:var(--c-mist);color:var(--c-primary);transform:translateY(-1px);}
.btn-x.ghost:active{transform:translateY(0);}
.btn-x.light{background:#fff;color:var(--c-primary);}
.btn-x.light:hover{background:#EFF6F3;color:var(--c-primary-700);transform:translateY(-1px);}
.btn-x.line-light{border-color:rgba(255,255,255,.55);color:#fff;background:transparent;}
.btn-x.line-light:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px);}
.btn-x.sm{height:40px;padding:0 16px;font-size:14px;}

/* ============ 面包屑 ============ */
.crumb{padding-top:24px;}
.crumb ol{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  list-style:none;margin:0;padding:0;
  font-size:14px;color:var(--c-text-3);
}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li + li::before{content:"/";color:#C7D2CE;margin-right:0;}
.crumb a{color:var(--c-text-2);}
.crumb a:hover{color:var(--c-primary);}
.crumb [aria-current="page"]{color:var(--c-text);font-weight:600;}

/* ============ 首屏 ============ */
.hero{padding:26px 0 0;}
.hero-inner{
  position:relative;
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:48px;
  align-items:center;
  min-height:300px;
  padding:48px;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-xl);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.hero-deco{
  position:absolute;
  right:-40px;bottom:-40px;
  width:68%;height:auto;
  opacity:.09;
  pointer-events:none;
}
.hero-deco path{fill:none;stroke:var(--c-primary);stroke-width:1.5;}
.hero-copy{position:relative;z-index:1;}
.pill{
  display:inline-flex;align-items:center;
  height:26px;padding:0 12px;
  border-radius:999px;
  background:var(--c-mist);color:var(--c-primary);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  margin-bottom:18px;
}
.hero h1{
  font-size:40px;
  letter-spacing:-.01em;
  margin-bottom:18px;
}
.hero .lede{
  max-width:520px;
  color:var(--c-text-2);
  font-size:17px;
  line-height:1.85;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-media{position:relative;z-index:1;}
.hero-media img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:var(--r-lg);
}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:32px;
  margin-top:34px;padding-top:26px;
  border-top:1px solid var(--c-line);
}
.hero-stats .stat strong{
  display:block;font-size:24px;color:var(--c-primary);line-height:1.1;
  font-variant-numeric:tabular-nums;
}
.hero-stats .stat span{font-size:13px;color:var(--c-text-3);}

/* ============ 板块 ============ */
.section{padding:88px 0;}
.section.tight{padding:72px 0;}
.section.alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.sec-head{max-width:740px;margin-bottom:40px;}
.sec-head h2{
  font-size:30px;
  position:relative;
  padding-bottom:14px;
}
.sec-head h2::after{
  content:"";
  position:absolute;left:0;bottom:0;
  width:56px;height:3px;border-radius:3px;
  background:var(--c-accent);
}
.sec-head p{margin-top:16px;color:var(--c-text-2);font-size:16px;}

/* ============ 条目对照 ============ */
.rule-list{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.rule-row{
  display:grid;
  grid-template-columns:160px 1fr;
  gap:28px;
  padding:26px 28px;
  border-bottom:1px solid var(--c-line);
  transition:background .18s ease;
}
.rule-row:last-child{border-bottom:0;}
.rule-row:hover{background:var(--c-hover);}
.rule-tag{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:16px;
  font-weight:700;
  color:var(--c-primary);
}
.rule-tag .idx{
  font-size:13px;line-height:1;
  padding-top:6px;
  color:var(--c-accent);
  font-weight:700;
  letter-spacing:.04em;
}
.rule-body{min-width:0;}
.rule-body p{color:var(--c-text-2);font-size:15.5px;}
.chip{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  border-radius:999px;
  background:var(--c-mist);color:var(--c-primary);
  font-size:12px;font-weight:600;
  margin-top:12px;
}

/* ============ 自检流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:14px;
  padding:26px 24px;
  transition:background .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.step:hover{
  background:#fff;
  border-color:#D6E3DF;
  box-shadow:var(--sh-2);
  transform:translateY(-2px);
}
.step .num{
  display:block;
  font-size:32px;
  font-weight:700;
  line-height:1;
  color:var(--c-accent);
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;margin:16px 0 8px;}
.step p{font-size:14.5px;color:var(--c-text-2);}

/* ============ 常见问题 ============ */
.faq{max-width:840px;}
.faq-item{
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:14px;
  margin-bottom:12px;
  overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item[open]{box-shadow:var(--sh-2);border-color:#D6E3DF;}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  position:relative;
  display:flex;
  align-items:center;
  gap:16px;
  padding:20px 24px;
  font-size:16.5px;
  font-weight:600;
  color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::marker{content:"";}
.q-idx{font-size:13px;font-weight:700;color:var(--c-accent);min-width:22px;}
.chev{
  margin-left:auto;
  width:18px;height:18px;flex:none;
  stroke:var(--c-text-3);fill:none;stroke-width:1.5;
  stroke-linecap:round;stroke-linejoin:round;
  transition:transform .2s ease,stroke .2s ease;
}
.faq-item[open] .chev{transform:rotate(90deg);stroke:var(--c-accent);}
.faq-item[open] summary::before{
  content:"";
  position:absolute;left:0;top:16px;bottom:16px;
  width:3px;border-radius:3px;
  background:var(--c-accent);
}
.faq-body{padding:0 24px 22px 62px;color:var(--c-text-2);font-size:15.5px;}

/* ============ CTA ============ */
.cta-wrap{padding:0 0 88px;}
.cta-card{
  position:relative;
  overflow:hidden;
  display:grid;
  grid-template-columns:1fr auto;
  gap:36px;
  align-items:center;
  padding:52px 48px;
  border-radius:var(--r-xl);
  background:var(--c-primary);
  color:#fff;
  box-shadow:var(--sh-2);
}
.cta-card h2{color:#fff;font-size:28px;margin-bottom:14px;}
.cta-card p{color:rgba(255,255,255,.84);max-width:620px;font-size:16px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-deco{
  position:absolute;right:-60px;top:-40px;
  width:52%;height:auto;opacity:.12;pointer-events:none;
}
.cta-deco path{fill:none;stroke:#fff;stroke-width:1.5;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--c-primary);
  color:rgba(255,255,255,.78);
  padding-top:64px;
  margin-top:auto;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.f-logo{font-size:19px;font-weight:700;color:#fff;margin-bottom:14px;}
.f-brand p{font-size:14.5px;line-height:1.85;max-width:340px;}
.f-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;}
.f-col ul{list-style:none;margin:0;padding:0;display:grid;gap:11px;font-size:14.5px;}
.f-col a,.f-col span{color:rgba(255,255,255,.78);}
.f-col a:hover{color:var(--c-accent);}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:14px;
  font-size:13.5px;
  color:rgba(255,255,255,.62);
}
.to-top{color:rgba(255,255,255,.82);display:inline-flex;align-items:center;gap:6px;}
.to-top:hover{color:var(--c-accent);}
.to-top svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:1.5;stroke-linecap:round;stroke-linejoin:round;}

/* ============ 响应式 ============ */
@media (min-width:992px) and (max-width:1199.98px){
  :root{--sidebar-w:88px;}
  .app-sidebar{padding:22px 12px 18px;}
  .brand{justify-content:center;padding:6px 0 22px;}
  .brand-text{display:none;}
  .nav-item{justify-content:center;padding:12px;gap:0;}
  .nav-label,.nav-arrow{display:none;}
  .sidebar-foot{display:none;}
}
@media (min-width:768px) and (max-width:991.98px){
  .hero-inner{grid-template-columns:1fr;gap:32px;padding:40px;}
  .hero h1{font-size:34px;}
  .hero-media img{aspect-ratio:16/9;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .rule-row{grid-template-columns:140px 1fr;gap:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .cta-card{grid-template-columns:1fr;padding:42px 36px;}
}
@media (max-width:991.98px){
  .app-sidebar{
    width:280px;
    transform:translateX(-100%);
    box-shadow:var(--sh-3);
    padding:22px 16px 20px;
  }
  .app-sidebar.open{transform:translateX(0);}
  .app-main{margin-left:0;}
  .mobile-bar{display:flex;}
}
@media (max-width:767.98px){
  body{font-size:16px;}
  .cx{padding:0 18px;}
  .crumb{padding-top:16px;}
  .hero{padding-top:18px;}
  .hero-inner{grid-template-columns:1fr;gap:28px;padding:28px 22px;border-radius:var(--r-lg);}
  .hero h1{font-size:28px;}
  .hero .lede{font-size:16px;margin-bottom:22px;}
  .hero-actions .btn-x{flex:1 1 100%;}
  .hero-stats{gap:22px;margin-top:26px;padding-top:20px;}
  .hero-stats .stat strong{font-size:20px;}
  .section{padding:56px 0;}
  .section.tight{padding:48px 0;}
  .sec-head{margin-bottom:28px;}
  .sec-head h2{font-size:24px;}
  .rule-row{grid-template-columns:1fr;gap:10px;padding:20px 18px;}
  .steps{grid-template-columns:1fr;gap:14px;}
  .faq-item summary{padding:18px;font-size:15.5px;gap:12px;}
  .faq-body{padding:0 18px 20px 18px;}
  .cta-wrap{padding-bottom:56px;}
  .cta-card{grid-template-columns:1fr;padding:32px 22px;border-radius:var(--r-lg);}
  .cta-card h2{font-size:22px;}
  .cta-actions .btn-x{flex:1 1 100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px;}
  .site-footer{padding-top:48px;}
  .footer-bottom{justify-content:flex-start;}
}

/* roulang page: category3 */
/* ===================== 设计变量 ===================== */
:root{
  --c-primary:#0F5B52;
  --c-primary-d:#0A443E;
  --c-accent:#FF6B45;
  --c-accent-d:#F0532B;
  --c-mist:#E6EFEC;
  --c-line:#E3E8E5;
  --c-bg:#F7F6F1;
  --c-card:#FFFFFF;
  --c-text:#14201E;
  --c-text-2:#5C6B67;
  --c-text-3:#8C9A96;
  --c-ok:#2F9E6B;
  --c-err:#E0483D;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sh-1:0 1px 2px rgba(20,32,30,.06);
  --sh-2:0 12px 32px -14px rgba(20,32,30,.14);
  --sh-3:0 18px 40px -16px rgba(20,32,30,.20);
  --side-w:240px;
  --ease:.18s ease-out;

  --bs-primary:#0F5B52;
  --bs-body-bg:#F7F6F1;
  --bs-body-color:#14201E;
  --bs-border-radius:12px;
  --bs-link-color:#0F5B52;
  --bs-link-hover-color:#F0532B;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  --bs-body-font-family:var(--bs-font-sans-serif);
  --bs-body-font-size:16.5px;
  --bs-body-line-height:1.8;
}

/* ===================== 基础重置 ===================== */
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16.5px;
  line-height:1.8;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--c-accent)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{line-height:1.3;margin:0;font-weight:700;color:var(--c-text)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
svg{display:block}
::selection{background:var(--c-mist);color:var(--c-primary)}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}

/* ===================== 容器 ===================== */
.cx{width:100%;max-width:1200px;margin:0 auto;padding:0 28px}
@media (min-width:1600px){.cx{max-width:1280px}}

/* ===================== 侧栏 App Shell ===================== */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--side-w);
  background:#fff;
  border-right:1px solid var(--c-line);
  display:flex;
  flex-direction:column;
  padding:22px 16px 18px;
  z-index:1045;
  transition:transform .22s ease-out,width .22s ease-out;
}
.brand{
  display:flex;align-items:center;gap:11px;
  padding:2px 6px 16px;
  border-bottom:1px solid var(--c-line);
  margin-bottom:16px;
  color:var(--c-text);
}
.brand:hover{color:var(--c-text)}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  border-radius:11px;
  background:linear-gradient(150deg,var(--c-primary),#17786B);
  display:grid;place-items:center;
  box-shadow:0 8px 18px -10px rgba(15,91,82,.9);
}
.brand-mark svg{width:21px;height:21px;fill:none;stroke:#fff;stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.brand-text{font-size:15px;font-weight:700;line-height:1.3;letter-spacing:.2px}

.side-nav{display:flex;flex-direction:column;gap:3px;flex:1 1 auto;overflow-y:auto}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:11px;
  padding:11px 12px;
  border-radius:var(--r-sm);
  color:var(--c-text-2);
  font-size:15px;font-weight:500;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.nav-item svg{width:20px;height:20px;flex:0 0 20px;fill:none;stroke:currentColor;stroke-width:1.5}
.nav-item .nav-arrow{
  width:15px;height:15px;flex:0 0 15px;margin-left:auto;
  opacity:0;transform:translateX(-6px);
  transition:opacity var(--ease),transform var(--ease);
}
.nav-item:hover{background:var(--c-mist);color:var(--c-primary)}
.nav-item:hover .nav-arrow{opacity:.65;transform:translateX(0)}
.nav-item.active{background:var(--c-mist);color:var(--c-primary);font-weight:700}
.nav-item.active .nav-arrow{opacity:.85;transform:translateX(0)}
.nav-item.active::before{
  content:"";position:absolute;left:-16px;top:8px;bottom:8px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-accent);
}

.side-foot{
  margin-top:14px;padding:15px 14px;
  background:var(--c-mist);
  border-radius:var(--r-md);
}
.side-foot p{font-size:13px;color:var(--c-text-2);line-height:1.6;margin-bottom:10px}
.side-foot .btn{width:100%;height:40px;font-size:14px;padding:0 14px;justify-content:center}

/* ===================== 主内容偏移 ===================== */
.shell{
  margin-left:var(--side-w);
  min-height:100vh;
  display:flex;flex-direction:column;
  transition:margin-left .22s ease-out;
}

/* ===================== 移动顶栏 / 抽屉 ===================== */
.mobile-bar{
  display:none;
  position:sticky;top:0;z-index:1035;
  height:56px;
  align-items:center;gap:12px;
  padding:0 16px;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--c-line);
}
.menu-btn{
  width:40px;height:40px;flex:0 0 40px;
  border:1px solid var(--c-line);background:#fff;border-radius:var(--r-sm);
  display:grid;place-items:center;cursor:pointer;
}
.menu-btn svg{width:20px;height:20px;fill:none;stroke:var(--c-text);stroke-width:1.6;stroke-linecap:round}
.mobile-logo{font-size:15px;font-weight:700;color:var(--c-text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.mobile-bar .btn{margin-left:auto;height:38px;padding:0 16px;font-size:14px;flex:0 0 auto}
.backdrop{
  display:none;position:fixed;inset:0;background:rgba(20,32,30,.42);z-index:1040;
}
.backdrop.show{display:block}

/* ===================== 按钮 ===================== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;
  border-radius:var(--r-sm);
  font-size:15px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:background var(--ease),color var(--ease),box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.btn-accent{background:var(--c-accent);color:#fff;box-shadow:0 10px 22px -12px rgba(255,107,69,.95)}
.btn-accent:hover{background:var(--c-accent-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-outline{border-color:var(--c-primary);color:var(--c-primary);background:transparent}
.btn-outline:hover{background:var(--c-primary);color:#fff;transform:translateY(-1px)}
.btn-soft{background:var(--c-mist);color:var(--c-primary)}
.btn-soft:hover{background:#d6e5e1;color:var(--c-primary);transform:translateY(-1px)}
.btn:active{transform:translateY(0)}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}

/* ===================== 标签 / 徽章 ===================== */
.tag{
  display:inline-flex;align-items:center;
  height:24px;padding:0 11px;
  border-radius:999px;
  background:var(--c-mist);color:var(--c-primary);
  font-size:12px;font-weight:600;letter-spacing:.3px;
}
.tag-accent{background:var(--c-accent);color:#fff}

/* ===================== 面包屑 ===================== */
.crumbs{padding:26px 0 0}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--c-text-3)}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"";width:4px;height:4px;border-radius:50%;background:var(--c-text-3);opacity:.6}
.crumbs a{color:var(--c-text-2)}
.crumbs a:hover{color:var(--c-accent)}
.crumbs [aria-current]{color:var(--c-text)}

/* ===================== Hero ===================== */
.hero{
  position:relative;
  overflow:hidden;
  margin-top:22px;
  border-radius:var(--r-lg);
  background:linear-gradient(180deg,#FFFFFF 0%,#F2F6F4 100%);
  border:1px solid var(--c-line);
  box-shadow:var(--sh-1);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(520px 220px at 82% 8%, rgba(15,91,82,.07), transparent 70%),
    radial-gradient(360px 200px at 12% 92%, rgba(255,107,69,.06), transparent 72%);
}
.hero-grid{
  position:relative;
  display:grid;grid-template-columns:1.05fr .95fr;
  gap:34px;align-items:center;
  padding:52px 48px;
  min-height:300px;
}
.hero-copy .tag{margin-bottom:16px}
.hero-copy h1{
  font-size:40px;line-height:1.25;
  letter-spacing:-.4px;
  margin-bottom:16px;
}
.hero-copy h1 em{font-style:normal;color:var(--c-primary)}
.hero-copy p{font-size:16.5px;color:var(--c-text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:26px;margin-top:30px;
  padding-top:22px;border-top:1px dashed var(--c-line);
}
.hero-stats div{min-width:96px}
.hero-stats strong{
  display:block;font-size:24px;font-weight:800;color:var(--c-primary);
  font-variant-numeric:tabular-nums;letter-spacing:-.5px;
}
.hero-stats span{font-size:13px;color:var(--c-text-3)}
.hero-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  box-shadow:var(--sh-2);
  border:1px solid var(--c-line);
  background:#fff;
}
.hero-media img{width:100%;height:300px;object-fit:cover}

/* ===================== 板块 ===================== */
.block{padding:76px 0}
.block-alt{background:#fff;border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.block-head{max-width:760px;margin-bottom:38px}
.block-head h2{
  font-size:30px;letter-spacing:-.3px;margin-bottom:14px;
  position:relative;padding-bottom:14px;
}
.block-head h2::after{
  content:"";position:absolute;left:0;bottom:0;width:52px;height:3px;border-radius:3px;background:var(--c-accent);
}
.block-head p{color:var(--c-text-2)}

/* ===================== 步骤不等宽网格 ===================== */
.step-grid{display:grid;gap:18px}
.step{
  display:grid;
  gap:30px;align-items:center;
  background:#fff;
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  padding:28px 32px;
  box-shadow:var(--sh-1);
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.step.is-a{grid-template-columns:minmax(120px,1fr) 2.4fr}
.step.is-b{grid-template-columns:2.4fr minmax(120px,1fr)}
.step.is-b .step-num{order:2;text-align:right}
.step.is-b .step-body{order:1}
.step:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:#d5e2de}
.step-num span{
  display:block;
  font-size:48px;font-weight:800;line-height:1;
  color:var(--c-accent);
  letter-spacing:-.03em;
  font-variant-numeric:tabular-nums;
}
.step-body h3{font-size:20px;margin-bottom:8px}
.step-body p{color:var(--c-text-2);font-size:16px}
.step-body .tag{margin-top:14px}

/* ===================== 图文分栏 ===================== */
.split{
  display:grid;grid-template-columns:1fr 1fr;
  gap:52px;align-items:center;
}
.split-media{
  border-radius:var(--r-lg);
  overflow:hidden;
  border:1px solid var(--c-line);
  box-shadow:var(--sh-2);
}
.split-media img{width:100%;height:340px;object-fit:cover}
.split-copy h2{font-size:28px;margin-bottom:16px;letter-spacing:-.3px}
.split-copy > p{color:var(--c-text-2);margin-bottom:22px}

.tick-list{display:grid;gap:14px}
.tick-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15.5px;color:var(--c-text-2);
  padding:13px 16px;
  background:var(--c-bg);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  transition:background var(--ease),border-color var(--ease);
}
.tick-list li:hover{background:var(--c-mist);border-color:#cfdfda}
.tick-list svg{
  width:20px;height:20px;flex:0 0 20px;margin-top:3px;
  fill:none;stroke:var(--c-primary);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;
}
.tick-list strong{color:var(--c-text);font-weight:600}

/* ===================== 卡片行 ===================== */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mini-card{
  background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-lg);padding:26px 24px;
  box-shadow:var(--sh-1);
  transition:box-shadow var(--ease),transform var(--ease);
}
.mini-card:hover{box-shadow:var(--sh-3);transform:translateY(-3px)}
.mini-card .ic{
  width:42px;height:42px;border-radius:12px;
  background:var(--c-mist);display:grid;place-items:center;margin-bottom:16px;
}
.mini-card .ic svg{width:21px;height:21px;fill:none;stroke:var(--c-primary);stroke-width:1.6;stroke-linecap:round;stroke-linejoin:round}
.mini-card h3{font-size:18px;margin-bottom:9px}
.mini-card p{font-size:15px;color:var(--c-text-2)}

/* ===================== FAQ ===================== */
.faq{max-width:900px}
.faq-item{
  background:#fff;border:1px solid var(--c-line);
  border-radius:var(--r-md);margin-bottom:12px;overflow:hidden;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.faq-item:hover{border-color:#d5e2de;box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;gap:16px;
  padding:18px 24px;
  font-size:16.5px;font-weight:600;color:var(--c-text);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item .q-num{
  font-size:14px;font-weight:800;color:var(--c-accent);
  font-variant-numeric:tabular-nums;flex:0 0 auto;
}
.faq-item .q-arrow{
  margin-left:auto;width:18px;height:18px;flex:0 0 18px;
  fill:none;stroke:var(--c-text-3);stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;
  transition:transform var(--ease);
}
.faq-item[open] .q-arrow{transform:rotate(90deg);stroke:var(--c-accent)}
.faq-item[open] summary{color:var(--c-primary)}
.faq-body{
  padding:0 24px 20px 58px;
  color:var(--c-text-2);font-size:15.5px;
  position:relative;
}
.faq-item[open] .faq-body::before{
  content:"";position:absolute;left:24px;top:2px;bottom:22px;width:3px;border-radius:3px;background:var(--c-accent);
}

/* ===================== CTA ===================== */
.cta-wrap{padding:0 0 88px}
.cta{
  position:relative;overflow:hidden;
  border-radius:20px;
  background:var(--c-primary);
  color:#fff;
  padding:52px 48px;
  display:grid;grid-template-columns:1.4fr .9fr;
  gap:36px;align-items:center;
  box-shadow:var(--sh-3);
}
.cta::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(420px 200px at 90% 10%, rgba(255,255,255,.13), transparent 70%),
    radial-gradient(320px 180px at 5% 100%, rgba(255,107,69,.22), transparent 72%);
}
.cta > *{position:relative}
.cta h2{color:#fff;font-size:28px;margin-bottom:14px;letter-spacing:-.3px}
.cta p{color:rgba(255,255,255,.82);font-size:16px;max-width:560px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.cta-actions .btn-outline{border-color:rgba(255,255,255,.6);color:#fff}
.cta-actions .btn-outline:hover{background:#fff;color:var(--c-primary);border-color:#fff}
.cta-side{
  background:rgba(255,255,255,.10);
  border:1px solid rgba(255,255,255,.20);
  border-radius:var(--r-lg);
  padding:24px;
}
.cta-side h3{color:#fff;font-size:17px;margin-bottom:14px}
.cta-side ul{display:grid;gap:11px}
.cta-side li{display:flex;gap:10px;font-size:14.5px;color:rgba(255,255,255,.88)}
.cta-side li svg{width:18px;height:18px;flex:0 0 18px;margin-top:3px;fill:none;stroke:#FFB49E;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}

/* ===================== 页脚 ===================== */
.site-footer{
  margin-top:auto;
  background:var(--c-primary);
  color:rgba(255,255,255,.80);
  padding:62px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.7fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:44px;
}
.f-logo{
  font-size:19px;font-weight:700;color:#fff;margin-bottom:14px;
  letter-spacing:.2px;
}
.f-brand p{font-size:14.5px;line-height:1.85;max-width:340px;color:rgba(255,255,255,.72)}
.f-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.f-col ul{display:grid;gap:11px}
.f-col a,.f-col span{font-size:14.5px;color:rgba(255,255,255,.74)}
.f-col a:hover{color:var(--c-accent)}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  padding:20px 28px 24px;
  border-top:1px solid rgba(255,255,255,.16);
  font-size:13.5px;color:rgba(255,255,255,.62);
}
.to-top{color:rgba(255,255,255,.78);font-size:13.5px}
.to-top:hover{color:var(--c-accent)}

/* ===================== 响应式 ===================== */
@media (max-width:1199px) and (min-width:992px){
  :root{--side-w:88px}
  .brand{justify-content:center;padding:2px 0 14px}
  .brand-text{display:none}
  .nav-label,.nav-arrow{display:none}
  .nav-item{justify-content:center;padding:13px 0}
  .nav-item.active::before{left:-16px}
  .side-foot{display:none}
}
@media (max-width:991px){
  :root{--side-w:0px}
  .sidebar{
    width:282px;
    transform:translateX(-100%);
    box-shadow:0 24px 60px -20px rgba(20,32,30,.4);
  }
  .sidebar.open{transform:translateX(0)}
  .mobile-bar{display:flex}
  .hero-grid{grid-template-columns:1fr;padding:36px 28px;gap:26px}
  .hero-media img{height:240px}
  .split{grid-template-columns:1fr;gap:28px}
  .split-media img{height:260px}
  .card-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta{grid-template-columns:1fr;padding:40px 28px}
}
@media (max-width:767px){
  .cx{padding:0 18px}
  .block{padding:54px 0}
  .hero-copy h1{font-size:28px}
  .block-head h2{font-size:24px}
  .split-copy h2,.cta h2{font-size:23px}
  .step{padding:22px 20px;gap:16px}
  .step.is-a,.step.is-b{grid-template-columns:1fr}
  .step.is-b .step-num{order:1;text-align:left}
  .step.is-b .step-body{order:2}
  .step-num span{font-size:38px}
  .card-grid{grid-template-columns:1fr}
  .faq-item summary{padding:16px 18px;font-size:15.5px}
  .faq-body{padding:0 18px 18px 18px}
  .faq-item[open] .faq-body::before{left:0;top:0;bottom:18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{justify-content:flex-start}
  .cta-wrap{padding-bottom:60px}
}
@media (max-width:575px){
  .hero-actions .btn,.cta-actions .btn{width:100%}
  .hero-stats{gap:18px}
  .hero-stats div{min-width:calc(50% - 9px)}
  .hero-media img{height:200px}
}