/* roulang page: index */
:root{
  --brand:#0B4A6F;
  --brand-dark:#073853;
  --brand-light:#E8F1F7;
  --accent:#EE6C3A;
  --accent-dark:#D65A2A;
  --teal:#1F9D8F;
  --teal-light:#E6F5F3;
  --ink:#1F2C38;
  --muted:#5C6F80;
  --faint:#8A9AA8;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --line:#E4EAF0;
  --dark:#0B3A55;
  --radius:14px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow:0 1px 2px rgba(11,74,111,.06),0 12px 28px -12px rgba(11,74,111,.16);
  --shadow-hover:0 18px 38px -14px rgba(11,74,111,.24);
  --bs-primary:#0B4A6F;
  --bs-primary-rgb:11,74,111;
  --bs-body-color:#1F2C38;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E4EAF0;
  --bs-border-radius:14px;
  --bs-link-color:#0B4A6F;
  --bs-link-hover-color:#EE6C3A;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","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:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--ink);
  background:#fff;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent);}
h1,h2,h3,h4,h5{margin:0;font-weight:800;line-height:1.3;letter-spacing:-.01em;color:var(--ink);}
p{margin:0 0 20px;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
.container{max-width:1300px;padding-left:24px;padding-right:24px;}
@media (min-width:1400px){.container{max-width:1320px;}}
.py-section{padding-top:96px;padding-bottom:96px;}
.py-sm{padding-top:64px;padding-bottom:64px;}
.bg-soft{background:var(--bg);}
.num{font-variant-numeric:tabular-nums;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.06em;
  color:var(--brand);background:var(--brand-light);
  border-radius:999px;padding:6px 14px;margin-bottom:18px;
}
.eyebrow i{font-size:11px;}
.section-head{max-width:760px;margin-bottom:48px;}
.section-head h2{font-size:30px;margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;margin:0;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ============ 按钮 ============ */
.btn-hui{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 26px;border-radius:var(--radius-btn);
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 10px 22px -12px rgba(238,108,58,.85);}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 14px 26px -12px rgba(238,108,58,.9);}
.btn-accent:active{transform:translateY(0);}
.btn-outline-brand{background:#fff;color:var(--brand);border-color:#C9DCE8;}
.btn-outline-brand:hover{border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow);}
.btn-outline-brand:active{transform:translateY(0);}
.btn-dark-solid{background:#fff;color:var(--dark);border-color:#fff;}
.btn-dark-solid:hover{background:#F0F4F8;color:var(--dark);transform:translateY(-1px);}
.btn-text{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14.5px;font-weight:600;color:var(--brand);
  padding:0;background:none;border:0;cursor:pointer;
}
.btn-text i{transition:transform .18s ease;font-size:12px;}
.btn-text:hover{color:var(--accent);}
.btn-text:hover i{transform:translateX(4px);}
.btn-hui:focus-visible,.btn-text:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;border-radius:8px;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(6px);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(11,74,111,.05);
  transition:box-shadow .2s ease,padding .2s ease;
}
.site-header.is-stuck{box-shadow:0 8px 24px -16px rgba(11,74,111,.35);}
.nav-inner{display:flex;align-items:center;gap:28px;min-height:76px;transition:min-height .2s ease;}
.site-header.is-stuck .nav-inner{min-height:66px;}
.brand{display:flex;align-items:center;gap:11px;flex-shrink:0;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  background:linear-gradient(140deg,var(--brand) 0%,var(--brand-dark) 100%);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:17px;
  box-shadow:0 8px 18px -10px rgba(11,74,111,.8);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:17.5px;font-weight:800;color:var(--brand-dark);letter-spacing:-.01em;}
.brand-text span{font-size:11.5px;color:var(--faint);letter-spacing:.14em;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1;}
.nav-links a{
  position:relative;display:inline-block;
  font-size:15.5px;font-weight:600;color:#33475A;
  padding:10px 14px;border-radius:8px;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-links a:hover{color:var(--brand);background:#F7FAFC;}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand);}
.nav-links a.active::after{transform:scaleX(1);}
.nav-tools{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.nav-search{
  position:relative;display:flex;align-items:center;
}
.nav-search input{
  width:190px;height:40px;border-radius:999px;
  border:1px solid transparent;background:#F5F7FA;
  padding:0 40px 0 16px;font-size:14px;color:var(--ink);
  transition:border-color .18s ease,background-color .18s ease,box-shadow .18s ease,width .2s ease;
}
.nav-search input::placeholder{color:var(--faint);}
.nav-search input:focus{
  outline:none;width:220px;background:#fff;
  border-color:var(--brand);box-shadow:0 0 0 4px rgba(11,74,111,.08);
}
.nav-search i{position:absolute;right:15px;color:var(--faint);font-size:13.5px;pointer-events:none;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);background:#fff;color:var(--brand);font-size:17px;
}
.offcanvas{border:0;}
.offcanvas-header{border-bottom:1px solid var(--line);}
.offcanvas-body .nav-mobile a{
  display:flex;justify-content:space-between;align-items:center;
  padding:14px 4px;font-size:16px;font-weight:600;color:#33475A;
  border-bottom:1px solid var(--line);
}
.offcanvas-body .nav-mobile a.active{color:var(--brand);}
.mobile-search{margin:18px 0;}
.mobile-search input{
  width:100%;height:46px;border-radius:12px;border:1px solid var(--line);
  background:#F5F7FA;padding:0 16px;font-size:15px;
}
@media (max-width:991px){
  .nav-links,.nav-tools{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;margin-left:auto;}
  .nav-inner{min-height:66px;gap:14px;}
}

/* ============ Hero ============ */
.hero{
  position:relative;
  padding:84px 0 88px;
  background-image:linear-gradient(100deg,rgba(255,255,255,.97) 0%,rgba(255,255,255,.92) 42%,rgba(232,241,247,.72) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center right;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;right:-140px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(31,157,143,.12) 0%,rgba(31,157,143,0) 70%);
  pointer-events:none;
}
.hero h1{
  font-size:44px;line-height:1.28;margin-bottom:20px;color:var(--brand-dark);
  letter-spacing:-.015em;
}
.hero h1 em{font-style:normal;color:var(--accent);}
.hero-sub{font-size:17px;color:var(--muted);max-width:560px;margin-bottom:30px;line-height:1.85;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:36px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 26px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);}
.hero-points i{color:var(--teal);font-size:13px;}
.hero-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:26px;position:relative;z-index:2;
}
.hero-panel h3{font-size:18px;margin-bottom:6px;}
.hero-panel .panel-note{font-size:13.5px;color:var(--faint);margin-bottom:20px;}
.panel-list li{
  display:flex;justify-content:space-between;align-items:flex-start;gap:14px;
  padding:13px 0;border-bottom:1px dashed var(--line);
}
.panel-list li:last-child{border-bottom:0;padding-bottom:0;}
.panel-list b{font-weight:600;font-size:15px;color:var(--ink);}
.panel-list span{font-size:13.5px;color:var(--faint);white-space:nowrap;padding-top:2px;}
.hero-figure{margin-top:22px;border-radius:var(--radius-sm);overflow:hidden;border:1px solid var(--line);}
.hero-figure img{width:100%;aspect-ratio:16/9;}
@media (max-width:991px){
  .hero{padding:56px 0 64px;}
  .hero h1{font-size:32px;}
  .hero-sub{font-size:16px;}
}
@media (max-width:575px){
  .hero h1{font-size:29px;}
  .hero-cta .btn-hui{width:100%;}
}

/* ============ 信任速览条 ============ */
.trust-bar{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#fff;}
.trust-grid{
  display:grid;grid-template-columns:repeat(4,1fr);
  divide-x:1px;
}
.trust-item{
  padding:26px 24px;display:flex;align-items:center;gap:14px;
  border-right:1px solid var(--line);
}
.trust-item:last-child{border-right:0;}
.trust-item i{
  width:42px;height:42px;border-radius:12px;flex-shrink:0;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:16px;
}
.trust-item b{display:block;font-size:20px;font-weight:800;color:var(--brand-dark);}
.trust-item span{display:block;font-size:13.5px;color:var(--muted);}
@media (max-width:991px){.trust-grid{grid-template-columns:repeat(2,1fr);} .trust-item:nth-child(2){border-right:0;} .trust-item:nth-child(1),.trust-item:nth-child(2){border-bottom:1px solid var(--line);}}
@media (max-width:575px){.trust-grid{grid-template-columns:1fr;} .trust-item{border-right:0;border-bottom:1px solid var(--line);} .trust-item:last-child{border-bottom:0;}}

/* ============ 权益阶梯 ============ */
.stair{margin-top:8px;}
.stair-item{
  position:relative;display:grid;grid-template-columns:120px 1fr;gap:32px;
  padding:34px 0;border-top:1px solid var(--line);
}
.stair-item:first-child{border-top:0;padding-top:0;}
.stair-num{
  font-size:44px;font-weight:800;line-height:1;color:#DCE7EE;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stair-item h3{font-size:22px;margin-bottom:10px;}
.stair-item p{color:var(--muted);font-size:15.5px;max-width:640px;}
.stair-points{display:flex;flex-wrap:wrap;gap:10px 24px;margin:16px 0 18px;}
.stair-points li{display:flex;align-items:center;gap:8px;font-size:14.5px;color:#3B4E60;}
.stair-points i{color:var(--teal);font-size:12px;}
.stair-item:nth-child(2){padding-left:36px;}
.stair-item:nth-child(3){padding-left:72px;}
@media (max-width:991px){
  .stair-item{grid-template-columns:1fr;gap:10px;padding-left:0!important;}
  .stair-num{font-size:34px;}
}

/* ============ 套餐对比矩阵 ============ */
.matrix-wrap{border:1px solid var(--line);border-radius:var(--radius);background:#fff;box-shadow:var(--shadow);overflow:hidden;}
.matrix-scroll{overflow-x:auto;}
table.matrix{width:100%;min-width:860px;border-collapse:collapse;}
table.matrix th,table.matrix td{
  padding:18px 20px;text-align:left;font-size:15px;border-bottom:1px solid var(--line);
}
table.matrix thead th{
  background:#F7FAFC;font-size:15.5px;font-weight:700;color:var(--brand-dark);
  vertical-align:top;border-bottom:1px solid var(--line);
}
table.matrix tbody th{font-weight:600;color:#3B4E60;background:#FCFDFE;width:210px;font-size:14.5px;}
table.matrix tbody tr:last-child th,table.matrix tbody tr:last-child td{border-bottom:0;}
table.matrix tbody tr:hover td{background:#FBFDFE;}
.plan-name{display:block;font-size:17px;font-weight:800;color:var(--brand-dark);}
.plan-price{display:block;font-size:13.5px;color:var(--faint);margin-top:4px;}
.plan-reco{position:relative;background:linear-gradient(180deg,#F3F9FC 0%,#fff 60%);}
.plan-reco::before{
  content:"推荐";position:absolute;top:-1px;left:20px;
  background:var(--teal);color:#fff;font-size:12px;font-weight:600;
  padding:3px 12px;border-radius:0 0 8px 8px;letter-spacing:.06em;
}
.plan-reco .plan-name{color:var(--brand);}
.matrix-tag{
  display:inline-block;font-size:12.5px;font-weight:600;color:var(--teal);
  background:var(--teal-light);border-radius:999px;padding:3px 10px;margin-left:8px;
}
.cell-yes{color:var(--brand);font-weight:600;}
.cell-no{color:var(--faint);}
.matrix-foot{
  display:flex;flex-wrap:wrap;gap:16px;justify-content:space-between;align-items:center;
  padding:20px 24px;background:#F7FAFC;border-top:1px solid var(--line);
  font-size:14px;color:var(--muted);
}
@media (max-width:991px){
  .matrix-scroll{position:relative;}
  .matrix-wrap::after{
    content:"";position:absolute;right:0;top:0;bottom:0;width:44px;pointer-events:none;
    background:linear-gradient(90deg,rgba(255,255,255,0) 0%,rgba(255,255,255,.95) 100%);
  }
}

/* ============ 限时入口 ============ */
.limited{
  background:var(--dark);color:#fff;border-radius:var(--radius);
  padding:44px 48px;display:flex;flex-wrap:wrap;gap:26px;
  align-items:center;justify-content:space-between;
  box-shadow:0 24px 48px -30px rgba(11,58,85,.9);
}
.limited .limited-tag{
  display:inline-block;font-size:12.5px;font-weight:600;letter-spacing:.08em;
  color:#BEE3DC;background:rgba(31,157,143,.22);border-radius:999px;padding:5px 12px;margin-bottom:14px;
}
.limited h2{color:#fff;font-size:26px;margin-bottom:10px;}
.limited p{color:rgba(255,255,255,.72);font-size:15px;margin:0;max-width:640px;}
.limited-clock{display:flex;gap:14px;margin-top:18px;}
.clock-cell{
  min-width:78px;text-align:center;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.16);border-radius:12px;padding:10px 8px;
}
.clock-cell b{display:block;font-size:26px;font-weight:800;color:var(--accent);font-variant-numeric:tabular-nums;line-height:1.2;}
.clock-cell span{font-size:12px;color:rgba(255,255,255,.6);}
@media (max-width:767px){.limited{padding:32px 24px;} .limited h2{font-size:22px;}}

/* ============ 资讯列表 ============ */
.news-lead{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);gap:0;
  border:1px solid var(--line);border-radius:var(--radius);overflow:hidden;background:#fff;
  box-shadow:var(--shadow);transition:transform .18s ease,box-shadow .18s ease;
}
.news-lead:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.news-lead .lead-figure{overflow:hidden;background:var(--brand-light);}
.news-lead .lead-figure img{width:100%;height:100%;min-height:280px;aspect-ratio:16/9;transition:transform .35s ease;}
.news-lead:hover .lead-figure img{transform:scale(1.03);}
.news-lead .lead-body{padding:32px;display:flex;flex-direction:column;justify-content:center;}
.news-badge{
  display:inline-block;font-size:12.5px;font-weight:600;
  color:var(--teal);background:var(--teal-light);border-radius:999px;
  padding:4px 12px;margin-bottom:14px;
}
.news-lead h3{font-size:23px;margin-bottom:12px;line-height:1.4;}
.news-lead:hover h3{color:var(--brand);}
.news-lead p{color:var(--muted);font-size:15px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-meta{display:flex;align-items:center;gap:16px;margin-top:18px;font-size:13.5px;color:var(--faint);}
.news-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.news-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:24px;box-shadow:0 1px 2px rgba(11,74,111,.05);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.news-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#CFE0EA;}
.news-card h3{font-size:17.5px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card:hover h3{color:var(--brand);}
.news-card p{color:var(--muted);font-size:14.5px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-card .news-meta{margin-top:auto;padding-top:16px;}
.news-empty{
  min-height:220px;border:1px dashed #C9DCE8;border-radius:var(--radius);
  background:#FBFDFE;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;text-align:center;padding:32px;
}
.news-empty i{font-size:30px;color:#B6CBD9;}
.news-empty p{color:var(--muted);font-size:15px;margin:0;}
@media (max-width:991px){
  .news-lead{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:575px){
  .news-grid{grid-template-columns:1fr;}
  .news-lead .lead-body{padding:24px;}
}

/* ============ FAQ ============ */
.faq .accordion-item{
  border:0;border-top:1px solid var(--line);background:transparent;
}
.faq .accordion-item:last-child{border-bottom:1px solid var(--line);}
.faq .accordion-button{
  background:transparent;box-shadow:none;border:0;
  font-size:17px;font-weight:700;color:var(--ink);
  padding:22px 48px 22px 22px;position:relative;border-radius:0;
}
.faq .accordion-button::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;
  background:var(--brand);border-radius:2px;transform:scaleY(0);transform-origin:top;
  transition:transform .2s ease;
}
.faq .accordion-button:not(.collapsed){color:var(--brand);}
.faq .accordion-button:not(.collapsed)::before{transform:scaleY(1);}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-2px;}
.faq .accordion-button::after{
  background-image:none;content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--faint);width:auto;height:auto;
  position:absolute;right:20px;top:50%;transform:translateY(-50%);
  transition:transform .25s ease,color .2s ease;
}
.faq .accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(180deg);color:var(--brand);}
.faq .accordion-body{padding:0 48px 24px 22px;color:var(--muted);font-size:15px;line-height:1.85;}

/* ============ 咨询表单 ============ */
.contact-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow);padding:34px;
}
.contact-info li{
  display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--line);
}
.contact-info li:last-child{border-bottom:0;}
.contact-info i{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.contact-info b{display:block;font-size:15px;font-weight:600;}
.contact-info span{font-size:14px;color:var(--muted);}
.form-label{font-size:14.5px;font-weight:600;color:#3B4E60;margin-bottom:8px;}
.form-control,.form-select{
  min-height:48px;border-radius:var(--radius-btn);border:1px solid var(--line);
  background:#F7FAFC;font-size:15px;color:var(--ink);padding:12px 14px;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.form-control::placeholder{color:var(--faint);}
.form-control:focus,.form-select:focus{
  background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(11,74,111,.08);
}
textarea.form-control{min-height:130px;resize:vertical;}
.form-check-input{width:18px;height:18px;margin-top:4px;border-color:#C9DCE8;}
.form-check-input:checked{background-color:var(--brand);border-color:var(--brand);}
.form-check-input:focus{box-shadow:0 0 0 4px rgba(11,74,111,.12);border-color:var(--brand);}
.form-check-label{font-size:14px;color:var(--muted);}
.form-hint{font-size:13px;color:var(--faint);margin-top:8px;}
@media (max-width:575px){.contact-card{padding:24px;}}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:rgba(255,255,255,.72);padding-top:64px;}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:44px;
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);box-shadow:none;}
.footer-brand b{color:#fff;font-size:17px;font-weight:800;}
.site-footer h4{color:#fff;font-size:15.5px;margin-bottom:18px;letter-spacing:0;}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.62);}
.site-footer ul li{margin-bottom:11px;}
.site-footer ul a{font-size:14px;color:rgba(255,255,255,.72);}
.site-footer ul a:hover{color:var(--accent);}
.footer-qr{
  width:96px;height:96px;border-radius:12px;background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);display:flex;align-items:center;justify-content:center;
  color:rgba(255,255,255,.5);font-size:12.5px;text-align:center;margin-top:14px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.5);
}
@media (max-width:991px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (max-width:575px){.footer-grid{grid-template-columns:1fr;gap:30px;}}

/* CTA 条 */
.cta-strip{
  background:linear-gradient(120deg,#E8F1F7 0%,#F5F7FA 100%);
  border:1px solid #D5E5EF;border-radius:var(--radius);
  padding:36px 40px;display:flex;flex-wrap:wrap;gap:20px;
  align-items:center;justify-content:space-between;
}
.cta-strip h3{font-size:22px;margin-bottom:8px;}
.cta-strip p{color:var(--muted);font-size:15px;margin:0;}
@media (max-width:767px){.cta-strip{padding:26px 24px;} .cta-strip h3{font-size:19px;}}

/* roulang page: category1 */
:root{
  --brand:#0B4A6F;
  --brand-dark:#073853;
  --brand-soft:#E8F1F7;
  --accent:#EE6C3A;
  --accent-dark:#d95b2c;
  --teal:#1F9D8F;
  --teal-soft:#E6F5F3;
  --ink:#1F2C38;
  --muted:#5C6F80;
  --faint:#8A9AA8;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --line:#E4EAF0;
  --deep:#0B3A55;
  --radius-lg:14px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow:0 1px 2px rgba(11,74,111,.06),0 12px 28px -12px rgba(11,74,111,.16);
  --shadow-hover:0 18px 38px -14px rgba(11,74,111,.24);
  --container:1280px;
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--accent);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{line-height:1.3;margin:0;font-weight:700;letter-spacing:-.01em;color:var(--ink);}
p{margin:0 0 18px;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 2px rgba(11,74,111,.04);
  transition:box-shadow .2s ease,padding .2s ease;
}
.site-header.is-stuck{box-shadow:0 10px 24px -16px rgba(11,74,111,.35);}
.header-inner{
  display:flex;
  align-items:center;
  gap:28px;
  min-height:76px;
  transition:min-height .2s ease;
}
.site-header.is-stuck .header-inner{min-height:68px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(150deg,var(--brand),#12648f);
  color:#fff;
  border-radius:11px;
  font-size:17px;
  box-shadow:0 6px 14px -8px rgba(11,74,111,.7);
}
.brand-text{font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--brand);}

.nav-links{display:flex;align-items:center;gap:26px;margin-left:auto;}
.nav-links a{
  position:relative;
  font-size:15.5px;
  font-weight:500;
  color:var(--muted);
  padding:6px 0;
}
.nav-links a::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;
  height:2px;border-radius:2px;
  background:var(--brand);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease;
}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand);font-weight:700;}
.nav-links a.active::after{transform:scaleX(1);}

.header-actions{display:flex;align-items:center;gap:14px;flex-shrink:0;}
.search-box{
  display:flex;align-items:center;gap:8px;
  height:40px;padding:0 14px;
  background:var(--bg);
  border:1px solid transparent;
  border-radius:var(--radius-sm);
  transition:all .18s ease;
}
.search-box i{color:var(--faint);font-size:14px;}
.search-box input{
  border:0;background:transparent;outline:none;
  width:130px;font-size:14px;color:var(--ink);
}
.search-box input::placeholder{color:var(--faint);}
.search-box:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(11,74,111,.08);}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-sm);
  padding:13px 26px;
  font-size:15.5px;font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,background .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 22px -14px rgba(238,108,58,.9);}
.btn-primary:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand);border-color:#c9dbe6;}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--brand);font-weight:600;font-size:15px;
}
.btn-link-arrow i{transition:transform .18s ease;}
.btn-link-arrow:hover{color:var(--accent);}
.btn-link-arrow:hover i{transform:translateX(4px);}
.btn-cta-sm{padding:11px 20px;font-size:14.5px;}

.menu-toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  color:var(--brand);font-size:18px;cursor:pointer;
}
.menu-toggle:hover{background:var(--brand-soft);}

.offcanvas{border:0;}
.offcanvas-header{border-bottom:1px solid var(--line);}
.mobile-nav{display:flex;flex-direction:column;gap:4px;padding:8px 0;}
.mobile-nav a{
  padding:13px 4px;font-size:16px;font-weight:600;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-nav a.active{color:var(--brand);}
.mobile-cta{margin-top:20px;display:flex;flex-direction:column;gap:12px;}
.mobile-cta .btn{width:100%;min-height:44px;}

/* ---------- breadcrumb ---------- */
.breadcrumb-bar{
  background:#fff;
  border-bottom:1px solid var(--line);
  font-size:14px;
  color:var(--faint);
}
.breadcrumb-bar .container{display:flex;align-items:center;gap:10px;padding-top:14px;padding-bottom:14px;flex-wrap:wrap;}
.breadcrumb-bar a{color:var(--muted);}
.breadcrumb-bar a:hover{color:var(--brand);}
.breadcrumb-bar .sep{color:#c6d2dc;}
.breadcrumb-bar .current{color:var(--brand);font-weight:600;}

/* ---------- banner ---------- */
.page-banner{
  position:relative;
  padding:64px 0 68px;
  background-color:var(--deep);
  background-image:linear-gradient(100deg,rgba(7,56,83,.92) 0%,rgba(11,74,111,.84) 48%,rgba(11,74,111,.5) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.page-banner::after{
  content:"";
  position:absolute;inset:0;
  background:radial-gradient(900px 320px at 88% 12%,rgba(238,108,58,.22),transparent 70%);
  pointer-events:none;
}
.page-banner .container{position:relative;z-index:2;}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  font-size:12.5px;font-weight:600;letter-spacing:.04em;
  color:#eaf4fa;
  margin-bottom:20px;
}
.page-banner h1{
  color:#fff;
  font-size:44px;
  font-weight:800;
  max-width:900px;
  margin-bottom:18px;
}
.page-banner h1 span{color:#ffd9c6;}
.banner-lead{
  max-width:760px;
  font-size:17px;
  line-height:1.75;
  color:rgba(255,255,255,.88);
  margin-bottom:26px;
}
.banner-points{display:flex;flex-wrap:wrap;gap:14px 34px;}
.banner-points span{
  display:inline-flex;align-items:center;gap:9px;
  font-size:14px;color:rgba(255,255,255,.86);
}
.banner-points i{color:var(--accent);}

/* ---------- section ---------- */
.section{padding:96px 0;}
.section--soft{background:var(--brand-soft);}
.section--white{background:#fff;}
.section-head{max-width:720px;margin-bottom:52px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-block;
  font-size:12.5px;font-weight:700;letter-spacing:.14em;
  color:var(--teal);
  background:var(--teal-soft);
  padding:6px 14px;border-radius:999px;
  margin-bottom:16px;
}
.section-head h2{font-size:30px;margin-bottom:16px;}
.section-head p{color:var(--muted);font-size:16px;}

/* ---------- zigzag ---------- */
.zigzag{display:grid;gap:34px 56px;align-items:center;}
.zigzag + .zigzag{margin-top:72px;}
.zigzag--text-first{grid-template-columns:7fr 5fr;}
.zigzag--image-first{grid-template-columns:5fr 7fr;}
.zigzag-media{position:relative;}
.zigzag-media img{
  width:100%;height:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--radius-lg);
  border:1px solid rgba(11,74,111,.08);
  box-shadow:var(--shadow);
}
.zigzag-media .media-badge{
  position:absolute;left:18px;bottom:18px;
  background:#fff;
  border-radius:var(--radius-md);
  padding:10px 16px;
  font-size:13.5px;font-weight:700;color:var(--brand);
  box-shadow:var(--shadow);
}
.zigzag-body h3{font-size:22px;margin-bottom:14px;}
.zigzag-body h3 em{
  font-style:normal;color:var(--accent);
  font-variant-numeric:tabular-nums;
  margin-right:10px;
}
.zigzag-body > p{color:var(--muted);max-width:620px;}
.point-list{margin-top:22px;display:flex;flex-direction:column;gap:12px;}
.point-list li{
  display:flex;gap:11px;align-items:flex-start;
  font-size:15.5px;color:var(--ink);
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:13px 16px;
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.point-list li:hover{
  border-color:#bcd6e4;
  transform:translateY(-2px);
  box-shadow:var(--shadow);
}
.point-list i{color:var(--teal);margin-top:5px;font-size:13px;}

/* ---------- metric grid ---------- */
.metric-grid{
  display:grid;
  grid-template-columns:repeat(6,1fr);
  gap:24px;
}
.metric-card{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  padding:32px 30px;
  box-shadow:var(--shadow);
  transition:transform .18s ease,box-shadow .18s ease;
}
.metric-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.metric-card--tint{background:linear-gradient(160deg,#fff 0%,#EDF4F9 100%);}
.metric-card .metric-label{
  font-size:13px;font-weight:700;color:var(--teal);
  letter-spacing:.06em;margin-bottom:14px;display:block;
}
.metric-card h3{font-size:19px;margin-bottom:12px;}
.metric-card p{color:var(--muted);font-size:15px;}
.metric-num{
  font-size:38px;font-weight:800;color:var(--brand);
  font-variant-numeric:tabular-nums;
  line-height:1.1;margin-bottom:10px;
}
.metric-num small{font-size:16px;font-weight:600;color:var(--muted);margin-left:6px;}
.span-4{grid-column:span 4;}
.span-2{grid-column:span 2;}

/* ---------- strip list ---------- */
.strip-list{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.strip-list > div{
  background:#fff;
  padding:28px 26px;
  transition:background .18s ease;
}
.strip-list > div:hover{background:#F8FBFD;}
.strip-list h4{font-size:17px;margin-bottom:10px;}
.strip-list p{font-size:14.5px;color:var(--muted);margin:0;}
.strip-list .num{
  font-size:13px;font-weight:800;color:var(--accent);
  font-variant-numeric:tabular-nums;
  letter-spacing:.08em;display:block;margin-bottom:12px;
}

/* ---------- cta ---------- */
.cta-band{
  background:var(--deep);
  border-radius:18px;
  padding:52px 56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  color:#fff;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;right:-60px;top:-60px;
  width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(238,108,58,.35),transparent 68%);
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{color:#fff;font-size:27px;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15.5px;max-width:640px;}
.cta-band .btn{white-space:nowrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:rgba(255,255,255,.78);padding:72px 0 0;}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:44px;
  padding-bottom:52px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .brand-mark{width:34px;height:34px;font-size:15px;}
.footer-brand b{color:#fff;font-size:17.5px;font-weight:800;}
.site-footer p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.7);}
.site-footer h4{font-size:15.5px;color:#fff;margin-bottom:18px;font-weight:700;}
.site-footer ul li{margin-bottom:11px;font-size:14.5px;}
.site-footer ul li a{color:rgba(255,255,255,.75);}
.site-footer ul li a:hover{color:var(--accent);}
.footer-qr{
  margin-top:16px;
  width:112px;height:112px;
  border:1px dashed rgba(255,255,255,.35);
  border-radius:var(--radius-md);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;color:rgba(255,255,255,.6);
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .page-banner h1{font-size:38px;}
  .section{padding:80px 0;}
}
@media (max-width:991.98px){
  .nav-links,.search-box{display:none;}
  .menu-toggle{display:inline-flex;}
  .header-inner{min-height:68px;}
  .section{padding:72px 0;}
  .page-banner h1{font-size:32px;}
  .zigzag--text-first,.zigzag--image-first{grid-template-columns:1fr;}
  .zigzag--image-first .zigzag-media{order:-1;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .span-4,.span-2{grid-column:span 1;}
  .metric-card--tint.span-4{grid-column:span 2;}
  .strip-list{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
  .cta-band .btn{width:100%;}
}
@media (max-width:767.98px){
  .container{padding:0 16px;}
  .page-banner{padding:46px 0 52px;}
  .page-banner h1{font-size:28px;}
  .banner-lead{font-size:16px;}
  .section{padding:56px 0;}
  .section-head h2{font-size:24px;}
  .zigzag-body h3{font-size:19px;}
  .metric-grid{grid-template-columns:1fr;}
  .metric-card--tint.span-4{grid-column:span 1;}
  .metric-card{padding:26px 22px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-band{padding:34px 22px;border-radius:14px;}
  .cta-band h2{font-size:22px;}
}
@media (max-width:575.98px){
  .brand-text{font-size:17px;}
  .btn{padding:12px 20px;font-size:15px;width:100%;}
  .banner-points{gap:10px 22px;}
  .zigzag + .zigzag{margin-top:48px;}
}

/* roulang page: article */
:root{
  --c-primary:#0B4A6F;
  --c-primary-dark:#073853;
  --c-primary-soft:#E8F1F7;
  --c-accent:#EE6C3A;
  --c-accent-dark:#D75B2C;
  --c-teal:#1F9D8F;
  --c-teal-soft:#E6F5F3;
  --c-ink:#1F2C38;
  --c-text-2:#5C6F80;
  --c-text-3:#8A9AA8;
  --c-bg:#F5F7FA;
  --c-card:#FFFFFF;
  --c-line:#E4EAF0;
  --c-dark-band:#0B3A55;
  --radius-card:14px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(11,74,111,.06), 0 12px 28px -12px rgba(11,74,111,.16);
  --shadow-hover:0 18px 38px -14px rgba(11,74,111,.24);
  --container:1300px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  color:var(--c-ink);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--c-accent);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;letter-spacing:-.01em;color:var(--c-ink);}
p{margin:0 0 20px;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;}
.container{max-width:var(--container);padding-left:24px;padding-right:24px;margin:0 auto;}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--c-line);
  box-shadow:0 1px 2px rgba(11,74,111,.05);
  transition:padding .2s ease, box-shadow .2s ease;
}
.site-header.is-stuck{box-shadow:0 8px 24px -12px rgba(11,74,111,.28);}
.header-inner{
  display:flex;align-items:center;gap:28px;
  min-height:76px;
  transition:min-height .2s ease;
}
.site-header.is-stuck .header-inner{min-height:66px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:17px;
  box-shadow:0 8px 18px -10px rgba(11,74,111,.7);
}
.brand-text{font-size:19px;font-weight:800;color:var(--c-ink);letter-spacing:-.02em;white-space:nowrap;}
.brand:hover .brand-text{color:var(--c-primary);}
.nav-links{display:flex;align-items:center;gap:26px;margin-left:6px;flex:1 1 auto;}
.nav-links a{
  position:relative;
  font-size:15.5px;font-weight:600;color:var(--c-text-2);
  padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-links a:hover{color:var(--c-primary);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--c-primary);}
.nav-links a.active::after{transform:scaleX(1);}
.header-side{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.header-search{
  position:relative;display:flex;align-items:center;
  background:var(--c-bg);border:1px solid transparent;border-radius:999px;
  height:40px;padding:0 14px;width:212px;
  transition:background .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.header-search i{color:var(--c-text-3);font-size:13px;margin-right:8px;}
.header-search input{
  border:0;background:transparent;outline:none;width:100%;font-size:14px;
}
.header-search input::placeholder{color:var(--c-text-3);}
.header-search:focus-within{background:#fff;border-color:var(--c-primary);box-shadow:0 0 0 4px rgba(11,74,111,.08);}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--c-line);background:#fff;color:var(--c-primary);
  align-items:center;justify-content:center;font-size:16px;
}
.nav-toggle:hover{border-color:var(--c-primary);}

/* ---------- 按钮 ---------- */
.btn{transition:transform .18s ease,background-color .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;}
.btn-hui{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--c-accent);border:1px solid var(--c-accent);color:#fff;
  font-weight:600;font-size:15px;border-radius:var(--radius-btn);
  padding:11px 22px;line-height:1.4;
}
.btn-hui:hover{background:var(--c-accent-dark);border-color:var(--c-accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 22px -14px rgba(238,108,58,.9);}
.btn-hui:active{transform:translateY(0);}
.btn-hui-sm{padding:9px 18px;font-size:14px;}
.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:#fff;border:1px solid var(--c-primary);color:var(--c-primary);
  font-weight:600;font-size:15px;border-radius:var(--radius-btn);
  padding:11px 22px;line-height:1.4;
}
.btn-line:hover{background:var(--c-primary-soft);color:var(--c-primary-dark);transform:translateY(-1px);}
.btn-line:active{transform:translateY(0);}
.btn-mini{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--c-primary);
}
.btn-mini i{transition:transform .18s ease;}
.btn-mini:hover i{transform:translateX(4px);}

/* ---------- offcanvas 移动导航 ---------- */
.offcanvas{border:0;}
.offcanvas-header{border-bottom:1px solid var(--c-line);padding:18px 20px;}
.mobile-nav{display:flex;flex-direction:column;gap:2px;margin-bottom:22px;}
.mobile-nav a{
  padding:13px 12px;border-radius:10px;font-weight:600;font-size:16px;
  color:var(--c-ink);border:1px solid transparent;
}
.mobile-nav a:hover{background:var(--c-primary-soft);color:var(--c-primary);}
.mobile-nav a.active{background:var(--c-primary-soft);color:var(--c-primary);border-color:#CFE2EE;}
.mobile-search{width:100%;margin-bottom:14px;}

/* ---------- 面包屑 ---------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--c-line);}
.crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding:15px 0;font-size:13.5px;color:var(--c-text-3);
}
.crumb a{color:var(--c-text-2);font-weight:500;}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#C3CFD9;}
.crumb .current{
  color:var(--c-ink);font-weight:600;
  max-width:460px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- 文章头部 ---------- */
.article-hero{
  background:#fff;
  border-bottom:1px solid var(--c-line);
  padding:46px 0 40px;
}
.article-hero h1{
  font-size:40px;font-weight:800;letter-spacing:-.02em;line-height:1.28;
  max-width:900px;margin-bottom:20px;
}
.article-meta{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px 20px;
  font-size:13.5px;color:var(--c-text-3);
}
.article-meta .badge-cat{
  background:var(--c-teal-soft);color:#137F73;
  border-radius:999px;padding:4px 13px;font-weight:600;font-size:12.5px;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#D3DEE7;display:inline-block;}
.meta-item{display:inline-flex;align-items:center;gap:6px;}
.meta-item i{font-size:12.5px;color:var(--c-text-3);}

/* ---------- 主体布局 ---------- */
.main-wrap{padding:56px 0 76px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:44px;align-items:start;}
.article-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:44px 48px 38px;
}
.article-body{max-width:820px;}
.article-body > p:first-of-type{
  font-size:17.5px;color:#334553;line-height:1.9;
  padding-bottom:6px;border-bottom:1px dashed var(--c-line);margin-bottom:26px;
}
.article-body p{font-size:16px;line-height:1.9;margin:0 0 20px;color:#2C3D4B;}
.article-body h2{
  font-size:26px;font-weight:800;margin:40px 0 18px;padding-left:14px;
  border-left:4px solid var(--c-primary);line-height:1.35;
}
.article-body h3{font-size:21px;font-weight:700;margin:32px 0 14px;color:var(--c-primary-dark);}
.article-body h4{font-size:18px;font-weight:700;margin:26px 0 12px;}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:0;}
.article-body ul li{
  position:relative;padding-left:22px;margin-bottom:11px;line-height:1.8;color:#2C3D4B;
}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:11px;width:7px;height:7px;
  border-radius:2px;background:var(--c-teal);transform:rotate(45deg);
}
.article-body ol{counter-reset:li;list-style:none;}
.article-body ol li{
  position:relative;padding-left:32px;margin-bottom:11px;line-height:1.8;counter-increment:li;
}
.article-body ol li::before{
  content:counter(li);position:absolute;left:0;top:5px;
  width:21px;height:21px;border-radius:6px;background:var(--c-primary-soft);
  color:var(--c-primary);font-size:12.5px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
}
.article-body blockquote{
  margin:26px 0;padding:20px 24px;background:var(--c-primary-soft);
  border-left:4px solid var(--c-primary);border-radius:0 12px 12px 0;
  color:#20465E;font-size:15.5px;line-height:1.85;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:12px;margin:26px 0 10px;width:100%;
  border:1px solid var(--c-line);
}
.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 table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;
  border:1px solid var(--c-line);border-radius:12px;overflow:hidden;
}
.article-body th{background:var(--c-primary-soft);color:var(--c-primary-dark);font-weight:700;text-align:left;}
.article-body th,.article-body td{border:1px solid var(--c-line);padding:12px 16px;line-height:1.7;}
.article-body a{color:var(--c-primary);font-weight:600;border-bottom:1px solid rgba(11,74,111,.28);}
.article-body a:hover{color:var(--c-accent);border-bottom-color:var(--c-accent);}

/* ---------- 空态 ---------- */
.empty-state{
  border:1px dashed #C9D8E3;border-radius:var(--radius-card);
  background:#FAFCFD;padding:60px 24px;text-align:center;
}
.empty-state i{font-size:34px;color:#B6C7D4;margin-bottom:16px;display:block;}
.empty-state h3{font-size:20px;margin-bottom:10px;}
.empty-state p{color:var(--c-text-3);font-size:14.5px;margin-bottom:20px;}

/* ---------- 文章底部 ---------- */
.article-foot{margin-top:34px;padding-top:26px;border-top:1px solid var(--c-line);max-width:820px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px;}
.tag{
  font-size:12.5px;font-weight:600;color:var(--c-text-2);
  border:1px solid var(--c-line);border-radius:999px;padding:5px 14px;background:#fff;
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary);}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-bottom:26px;}
.pager a{
  display:block;border:1px solid var(--c-line);border-radius:12px;
  padding:14px 18px;background:#fff;transition:all .18s ease;
}
.pager a:hover{border-color:var(--c-primary);box-shadow:var(--shadow-sm);transform:translateY(-2px);}
.pager .pager-label{font-size:12.5px;color:var(--c-text-3);display:block;margin-bottom:4px;}
.pager .pager-title{font-size:14.5px;font-weight:600;color:var(--c-ink);line-height:1.55;}
.pager a:hover .pager-title{color:var(--c-primary);}
.article-tools{
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.share-row{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--c-text-3);}
.share-row button{
  width:36px;height:36px;border-radius:10px;border:1px solid var(--c-line);background:#fff;
  color:var(--c-text-2);display:inline-flex;align-items:center;justify-content:center;
  transition:all .18s ease;cursor:pointer;
}
.share-row button:hover{border-color:var(--c-primary);color:var(--c-primary);background:var(--c-primary-soft);}

/* ---------- 侧栏 ---------- */
.side-col{display:flex;flex-direction:column;gap:22px;position:sticky;top:100px;}
.side-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:24px;
}
.side-card h3{
  font-size:16.5px;font-weight:800;margin-bottom:18px;padding-bottom:12px;
  border-bottom:1px solid var(--c-line);display:flex;align-items:center;gap:8px;
}
.side-card h3::before{
  content:"";width:4px;height:16px;border-radius:2px;background:var(--c-accent);display:inline-block;
}
.side-post{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--c-line);}
.side-post:last-child{border-bottom:0;padding-bottom:0;}
.side-post img{width:74px;height:58px;object-fit:cover;border-radius:10px;flex:0 0 auto;}
.side-post .st{font-size:14px;font-weight:600;line-height:1.5;color:var(--c-ink);display:block;margin-bottom:5px;}
.side-post .st:hover{color:var(--c-primary);}
.side-post .sd{font-size:12.5px;color:var(--c-text-3);}
.side-cta{
  background:linear-gradient(160deg,#0B4A6F 0%,#0B3A55 100%);
  border-radius:var(--radius-card);padding:26px 24px;color:#fff;
}
.side-cta h3{color:#fff;border-bottom:1px solid rgba(255,255,255,.18);font-size:16.5px;}
.side-cta h3::before{background:var(--c-accent);}
.side-cta p{color:rgba(255,255,255,.78);font-size:14px;line-height:1.8;margin-bottom:18px;}
.side-cta .btn-hui{width:100%;}
.side-cta .contact-line{
  display:flex;align-items:center;gap:9px;font-size:13.5px;color:rgba(255,255,255,.82);
  margin-top:14px;
}
.side-cta .contact-line i{color:var(--c-accent);}

/* ---------- 相关推荐 ---------- */
.rel-section{padding:70px 0 10px;}
.section-head{margin-bottom:34px;max-width:760px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;font-weight:700;letter-spacing:.08em;
  color:var(--c-teal);background:var(--c-teal-soft);
  border-radius:999px;padding:5px 14px;margin-bottom:14px;
}
.section-head h2{font-size:30px;font-weight:800;letter-spacing:-.02em;margin-bottom:12px;}
.section-head p{color:var(--c-text-2);font-size:15.5px;margin:0;}
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px;}
.post-card{
  background:var(--c-card);border:1px solid var(--c-line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D3E1EB;}
.post-card .thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-soft);}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.post-card:hover .thumb img{transform:scale(1.04);}
.post-card .body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1;}
.post-card .badge-cat{
  align-self:flex-start;background:var(--c-teal-soft);color:#137F73;
  border-radius:999px;padding:4px 12px;font-size:12.5px;font-weight:600;margin-bottom:12px;
}
.post-card h3{font-size:18px;font-weight:700;line-height:1.5;margin-bottom:10px;}
.post-card:hover h3{color:var(--c-primary);}
.post-card .excerpt{
  font-size:14.5px;color:var(--c-text-2);line-height:1.75;margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--c-text-3);
}
.post-card .foot i{transition:transform .18s ease;}
.post-card:hover .foot i{transform:translateX(4px);color:var(--c-accent);}

/* ---------- CTA 通栏 ---------- */
.cta-band{padding:80px 0 0;}
.cta-inner{
  background:var(--c-dark-band);border-radius:18px;padding:48px 52px;
  display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;
  position:relative;overflow:hidden;
}
.cta-inner::after{
  content:"";position:absolute;right:-60px;top:-70px;width:260px;height:260px;
  border-radius:50%;background:rgba(238,108,58,.16);
}
.cta-inner h2{color:#fff;font-size:28px;font-weight:800;margin-bottom:10px;line-height:1.35;}
.cta-inner p{color:rgba(255,255,255,.76);font-size:15px;margin:0;max-width:640px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}
.cta-actions .btn-line{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
.cta-actions .btn-line:hover{background:rgba(255,255,255,.12);color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--c-dark-band);color:rgba(255,255,255,.76);margin-top:80px;padding-top:64px;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:46px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--c-accent);box-shadow:none;}
.footer-brand b{color:#fff;font-size:18px;font-weight:800;}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);margin:0;}
.site-footer h4{color:#fff;font-size:15.5px;font-weight:700;margin-bottom:18px;}
.site-footer ul li{margin-bottom:11px;}
.site-footer ul li a{font-size:14px;color:rgba(255,255,255,.72);}
.site-footer ul li a:hover{color:var(--c-accent);}
.site-footer ul li{font-size:14px;color:rgba(255,255,255,.72);}
.footer-qr{
  margin-top:16px;width:104px;height:104px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.35);
  display:flex;align-items:center;justify-content:center;
  font-size:12.5px;color:rgba(255,255,255,.6);text-align:center;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding-left:20px;padding-right:20px;}
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:30px;}
  .article-card{padding:36px 32px 32px;}
  .article-hero h1{font-size:34px;}
}
@media (max-width:991px){
  .nav-links{display:none;}
  .header-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-inner{min-height:66px;gap:14px;}
  .article-layout{grid-template-columns:1fr;}
  .side-col{position:static;}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{padding:38px 32px;}
  .article-hero{padding:34px 0 30px;}
  .article-hero h1{font-size:29px;}
  .article-card{padding:28px 22px 26px;}
  .main-wrap{padding:40px 0 56px;}
  .cta-band{padding:60px 0 0;}
}
@media (max-width:767px){
  .section-head h2{font-size:24px;}
  .article-body h2{font-size:22px;}
  .article-body h3{font-size:19px;}
  .rel-grid{grid-template-columns:1fr;}
  .pager{grid-template-columns:1fr;}
  .crumb .current{max-width:100%;}
}
@media (max-width:575px){
  body{font-size:15.5px;}
  .container{padding-left:16px;padding-right:16px;}
  .brand-text{font-size:17px;}
  .article-hero h1{font-size:25px;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-inner{padding:30px 22px;}
  .cta-inner h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-hui,.cta-actions .btn-line{width:100%;}
}

/* roulang page: category2 */
:root{
  --brand:#0B4A6F;
  --brand-dark:#073853;
  --brand-light:#E8F1F7;
  --accent:#EE6C3A;
  --accent-dark:#D65A2B;
  --teal:#1F9D8F;
  --teal-light:#E6F5F3;
  --ink:#1F2C38;
  --muted:#5C6F80;
  --faint:#8A9AA8;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --line:#E4EAF0;
  --deep:#0B3A55;
  --radius:14px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow:0 1px 2px rgba(11,74,111,.06), 0 12px 28px -12px rgba(11,74,111,.16);
  --shadow-hover:0 18px 38px -14px rgba(11,74,111,.24);
  --bs-body-font-family:"PingFang SC","Hiragino Sans GB","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:var(--bs-body-font-family);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,opacity .18s ease;}
a:hover{color:var(--accent);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;line-height:1.3;letter-spacing:-.01em;font-weight:800;color:var(--ink);}
p{margin:0;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{max-width:1300px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}

/* ============ HEADER ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(11,74,111,.02), 0 6px 18px -14px rgba(11,74,111,.30);
  transition:box-shadow .2s ease,padding .2s ease;
}
.nav-inner{
  display:flex;align-items:center;gap:28px;
  min-height:74px;
  padding-top:10px;padding-bottom:10px;
}
.brand{
  display:inline-flex;align-items:center;gap:11px;
  font-weight:800;font-size:19px;color:var(--ink);letter-spacing:-.01em;
  white-space:nowrap;
}
.brand:hover{color:var(--brand);}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;flex:0 0 auto;
  box-shadow:0 6px 14px -6px rgba(11,74,111,.5);
}
.nav-links{
  display:flex;align-items:center;gap:4px;flex:1 1 auto;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:15.5px;
  font-weight:600;
  color:var(--muted);
  border-radius:8px;
  white-space:nowrap;
  transition:color .18s ease,background .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  background:var(--brand);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-light);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand);}
.nav-links a.active::after{transform:scaleX(1);}
.nav-tools{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-search{
  position:relative;display:flex;align-items:center;
}
.nav-search i{
  position:absolute;left:14px;color:var(--faint);font-size:13.5px;pointer-events:none;
}
.nav-search input{
  width:210px;height:40px;
  padding:0 14px 0 36px;
  border:1px solid transparent;
  background:var(--bg);
  border-radius:var(--radius-btn);
  color:var(--ink);
  font-size:14.5px;
  transition:border-color .18s ease,background .18s ease,box-shadow .18s ease;
}
.nav-search input::placeholder{color:var(--faint);}
.nav-search input:focus{
  outline:none;background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(11,74,111,.08);
}
.btn-main{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 24px;
  background:var(--accent);color:#fff;font-weight:600;font-size:15px;
  border:none;border-radius:var(--radius-btn);
  cursor:pointer;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
  box-shadow:0 8px 20px -12px rgba(238,108,58,.85);
}
.btn-main:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;
  background:#fff;color:var(--brand);
  border:1.5px solid var(--brand);
  border-radius:var(--radius-btn);
  font-weight:600;font-size:15px;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-text{
  display:inline-flex;align-items:center;gap:7px;
  color:var(--brand);font-weight:600;font-size:15px;
}
.btn-text i{transition:transform .18s ease;}
.btn-text:hover i{transform:translateX(4px);}
.navbar-toggler{
  display:none;
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;color:var(--brand);align-items:center;justify-content:center;font-size:18px;
}
.navbar-toggler:hover{background:var(--brand-light);}
.offcanvas-header{padding:18px 20px;border-bottom:1px solid var(--line);}
.offcanvas-title{font-size:17px;font-weight:800;color:var(--ink);}
.offcanvas .btn-close{opacity:.55;}

/* ============ BREADCRUMB ============ */
.crumb-bar{background:#fff;border-bottom:1px solid var(--line);}
.crumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:14px 0;font-size:14px;color:var(--faint);
}
.crumb a{color:var(--muted);font-weight:500;}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#C6D2DC;}
.crumb .now{color:var(--brand);font-weight:600;}

/* ============ PAGE BANNER ============ */
.page-banner{
  position:relative;
  min-height:300px;
  display:flex;align-items:center;
  background-image:linear-gradient(100deg,rgba(245,247,250,.96) 0%,rgba(245,247,250,.86) 46%,rgba(245,247,250,.42) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.banner-inner{padding:56px 0;max-width:760px;}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--teal-light);color:#127A6F;
  font-size:12.5px;font-weight:600;
  padding:6px 14px;border-radius:999px;
  margin-bottom:18px;
}
.page-banner h1{
  font-size:44px;font-weight:800;color:var(--ink);margin-bottom:16px;
}
.page-banner h1 span{color:var(--brand);}
.banner-sub{
  font-size:17px;line-height:1.85;color:var(--muted);max-width:660px;
}

/* ============ SECTIONS ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-alt{background:#fff;}
.sec-head{max-width:720px;margin-bottom:52px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-eyebrow{
  display:inline-block;font-size:12.5px;font-weight:700;letter-spacing:.08em;
  color:var(--teal);text-transform:uppercase;margin-bottom:12px;
}
.sec-head h2{font-size:30px;margin-bottom:14px;}
.sec-head p{font-size:16.5px;color:var(--muted);}

/* ============ STEPS / TIMELINE ============ */
.step-list{max-width:960px;}
.step{
  position:relative;
  display:grid;grid-template-columns:88px 1fr;gap:26px;
  padding-bottom:44px;
}
.step:last-child{padding-bottom:0;}
.step:not(:last-child)::before{
  content:"";position:absolute;left:43px;top:96px;bottom:2px;width:2px;
  background:linear-gradient(180deg,var(--brand-light),var(--line));
}
.step-index{
  width:88px;height:88px;border-radius:22px;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;
  font-size:30px;font-weight:800;
  font-variant-numeric:tabular-nums;
  letter-spacing:-.02em;
  transition:background .2s ease,color .2s ease;
}
.step:hover .step-index{background:var(--brand);color:#fff;}
.step-body{padding-top:6px;}
.step-body h3{font-size:22px;margin-bottom:12px;}
.step-body p{color:var(--muted);font-size:16px;margin-bottom:16px;max-width:720px;}
.tick-list li{
  position:relative;padding-left:24px;font-size:15px;color:var(--muted);line-height:1.75;
  margin-bottom:8px;
}
.tick-list li:last-child{margin-bottom:0;}
.tick-list li::before{
  content:"";position:absolute;left:2px;top:11px;
  width:9px;height:5px;border-left:2px solid var(--teal);border-bottom:2px solid var(--teal);
  transform:rotate(-45deg);
}
.step-link{margin-top:14px;display:inline-flex;}

/* ============ FEATURE CARDS (错位两列) ============ */
.zig-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:26px;}
.zc{grid-column:span 7;}
.zc-5{grid-column:span 5;}
.zc-offset{margin-top:0;}
.zig-row-2 .zc{margin-top:-56px;}
.feature-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  height:100%;
  display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease;
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.feature-card .thumb{
  position:relative;width:100%;aspect-ratio:16/9;overflow:hidden;
  border-bottom:1px solid var(--line);
}
.feature-card .thumb img{width:100%;height:100%;transition:transform .4s ease;}
.feature-card:hover .thumb img{transform:scale(1.04);}
.feature-card .fc-body{padding:26px 26px 28px;display:flex;flex-direction:column;gap:12px;flex:1;}
.feature-card h3{font-size:21px;}
.feature-card p{color:var(--muted);font-size:15.5px;}
.badge-teal{
  display:inline-flex;align-items:center;
  align-self:flex-start;
  background:var(--teal-light);color:#127A6F;
  font-size:12.5px;font-weight:600;
  padding:5px 12px;border-radius:999px;
}
.fc-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px;}
.fc-points span{
  font-size:13px;color:var(--muted);
  background:var(--bg);border:1px solid var(--line);
  padding:4px 11px;border-radius:999px;
}
.fc-foot{margin-top:auto;padding-top:6px;}

/* ============ DATA GRID 2x2 ============ */
.data-grid{
  display:grid;grid-template-columns:1.3fr 1fr;gap:22px;
}
.data-card{
  background:var(--brand-light);
  border:1px solid #D5E5F0;
  border-radius:var(--radius);
  padding:34px 32px;
  transition:transform .18s ease,box-shadow .18s ease;
}
.data-card:hover{transform:translateY(-3px);box-shadow:var(--shadow);}
.data-card .num{
  font-size:40px;font-weight:800;color:var(--brand);line-height:1.15;
  font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.data-card .unit{font-size:16px;font-weight:700;color:var(--brand);margin-left:4px;}
.data-card h4{font-size:18px;margin:12px 0 8px;}
.data-card p{font-size:14.8px;color:var(--muted);}
.data-card.dark{background:var(--deep);border-color:var(--deep);}
.data-card.dark .num,.data-card.dark h4{color:#fff;}
.data-card.dark p{color:rgba(255,255,255,.74);}

/* ============ FAQ ============ */
.faq-wrap{max-width:920px;margin:0 auto;}
.faq .accordion-item{
  background:transparent;border:0;border-bottom:1px solid var(--line);
}
.faq .accordion-item:first-child{border-top:1px solid var(--line);}
.faq .accordion-header{margin:0;}
.faq .accordion-button{
  position:relative;
  background:transparent;
  box-shadow:none;
  border-radius:0;
  padding:22px 48px 22px 4px;
  font-size:17.5px;font-weight:700;color:var(--ink);
  line-height:1.5;
  transition:color .18s ease,box-shadow .18s ease,padding .18s ease,background .18s ease;
}
.faq .accordion-button:not(.collapsed){
  color:var(--brand);background:rgba(232,241,247,.5);
  box-shadow:inset 3px 0 0 var(--brand);
  padding-left:18px;
}
.faq .accordion-button:focus{box-shadow:inset 3px 0 0 var(--brand);}
.faq .accordion-button::after{
  content:"";background-image:none;
  width:10px;height:10px;
  border-right:2px solid var(--faint);border-bottom:2px solid var(--faint);
  transform:rotate(45deg);
  position:absolute;right:16px;top:50%;margin-top:-7px;
  transition:transform .22s ease,border-color .22s ease;
}
.faq .accordion-button:not(.collapsed)::after{
  transform:rotate(-135deg);border-color:var(--brand);margin-top:-4px;
}
.faq .accordion-body{
  padding:4px 60px 24px 18px;
  font-size:15.5px;color:var(--muted);line-height:1.85;
}

/* ============ CTA BAND ============ */
.cta-band{
  background:var(--deep);
  border-radius:18px;
  padding:56px 60px;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-70px;
  width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(238,108,58,.26),transparent 68%);
  pointer-events:none;
}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:12px;}
.cta-band p{color:rgba(255,255,255,.76);font-size:16px;max-width:660px;}
.cta-band .cta-actions{display:flex;gap:14px;flex:0 0 auto;position:relative;z-index:1;}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff;}
.cta-note{margin-top:14px;font-size:13.5px;color:rgba(255,255,255,.55);}

/* ============ FOOTER ============ */
.site-footer{background:var(--deep);color:rgba(255,255,255,.76);margin-top:0;}
.site-footer .container{padding-top:64px;padding-bottom:0;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px;}
.footer-brand .brand-mark{width:36px;height:36px;border-radius:10px;font-size:16px;}
.footer-brand b{color:#fff;font-size:18px;font-weight:800;}
.site-footer p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.66);max-width:360px;}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px;font-weight:700;}
.site-footer ul li{margin-bottom:11px;font-size:14.8px;}
.site-footer ul li a{color:rgba(255,255,255,.7);}
.site-footer ul li a:hover{color:var(--accent);}
.footer-qr{
  margin-top:16px;
  width:112px;height:112px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.32);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;color:rgba(255,255,255,.55);
  text-align:center;line-height:1.5;padding:8px;
}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.12);
  padding:22px 0 26px;
  font-size:13.5px;color:rgba(255,255,255,.5);
}

/* ============ RESPONSIVE ============ */
@media (max-width:1199.98px){
  .nav-search input{width:170px;}
  .page-banner h1{font-size:38px;}
  .section{padding:80px 0;}
}
@media (max-width:991.98px){
  .navbar-toggler{display:inline-flex;}
  .nav-inner{min-height:66px;gap:16px;justify-content:space-between;}
  .offcanvas-lg{--bs-offcanvas-width:min(88vw,340px);}
  .offcanvas-body{
    display:flex;flex-direction:column;gap:20px;padding:20px 20px 30px;
  }
  .nav-links{flex-direction:column;align-items:stretch;gap:2px;width:100%;}
  .nav-links a{padding:13px 14px;font-size:16px;border-radius:10px;}
  .nav-links a::after{display:none;}
  .nav-links a.active{background:var(--brand-light);}
  .nav-tools{flex-direction:column;align-items:stretch;gap:12px;width:100%;}
  .nav-search input{width:100%;height:46px;}
  .nav-tools .btn-main{width:100%;}
  .page-banner{min-height:260px;}
  .page-banner h1{font-size:32px;}
  .banner-sub{font-size:16px;}
  .section{padding:72px 0;}
  .section-tight{padding:60px 0;}
  .sec-head{margin-bottom:40px;}
  .sec-head h2{font-size:26px;}
  .zig-grid{grid-template-columns:1fr;gap:22px;}
  .zc,.zc-5{grid-column:span 1;}
  .zig-row-2 .zc{margin-top:0;}
  .data-grid{grid-template-columns:1fr;gap:18px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:44px 32px;gap:28px;}
  .cta-band h2{font-size:24px;}
  .cta-band .cta-actions{width:100%;flex-wrap:wrap;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:575.98px){
  body{font-size:15.5px;}
  .container{padding-left:16px;padding-right:16px;}
  .brand{font-size:17px;}
  .brand-mark{width:34px;height:34px;font-size:15px;border-radius:10px;}
  .page-banner{min-height:230px;}
  .page-banner h1{font-size:26px;}
  .banner-inner{padding:40px 0;}
  .section{padding:52px 0;}
  .sec-head h2{font-size:23px;}
  .step{grid-template-columns:60px 1fr;gap:16px;padding-bottom:34px;}
  .step-index{width:60px;height:60px;border-radius:16px;font-size:21px;}
  .step:not(:last-child)::before{left:29px;top:66px;}
  .step-body h3{font-size:19px;}
  .data-card{padding:26px 22px;}
  .data-card .num{font-size:32px;}
  .faq .accordion-button{font-size:16px;padding-right:40px;}
  .faq .accordion-body{padding:2px 20px 22px 18px;}
  .cta-band{padding:34px 22px;border-radius:14px;}
  .cta-band h2{font-size:21px;}
  .cta-band .cta-actions .btn-main,.cta-band .cta-actions .btn-ghost{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}

/* roulang page: category3 */
:root{
  --brand:#0B4A6F;
  --brand-dark:#073853;
  --brand-light:#E8F1F7;
  --accent:#EE6C3A;
  --accent-dark:#D95A2A;
  --teal:#1F9D8F;
  --teal-light:#E6F5F3;
  --ink:#1F2C38;
  --muted:#5C6F80;
  --weak:#8A9AA8;
  --bg:#F5F7FA;
  --card:#FFFFFF;
  --line:#E4EAF0;
  --deep:#0B3A55;
  --radius:14px;
  --radius-sm:12px;
  --radius-btn:10px;
  --shadow:0 1px 2px rgba(11,74,111,.06),0 12px 28px -12px rgba(11,74,111,.16);
  --shadow-hover:0 18px 38px -14px rgba(11,74,111,.24);
  --shadow-nav:0 1px 0 var(--line),0 6px 18px -12px rgba(11,74,111,.18);
  --ease:180ms ease;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--accent);}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;}
h1,h2,h3,h4{line-height:1.3;color:var(--ink);margin:0;font-weight:700;letter-spacing:-.01em;}
h1{font-size:44px;font-weight:800;}
h2{font-size:30px;}
h3{font-size:22px;}
h4{font-size:18px;}
p{margin:0 0 18px;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1300px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:96px 0;}
.section--tight{padding:72px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;color:var(--teal);
  background:var(--teal-light);
  border-radius:999px;
  padding:6px 14px;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16.5px;margin:0;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  box-shadow:var(--shadow-nav);
  transition:padding var(--ease),box-shadow var(--ease);
}
.header-inner{
  display:flex;align-items:center;gap:24px;
  min-height:76px;
  padding:14px 0;
  transition:min-height var(--ease),padding var(--ease);
}
.site-header.is-stuck .header-inner{min-height:64px;padding:8px 0;}
.site-header.is-stuck{box-shadow:0 1px 0 var(--line),0 12px 26px -16px rgba(11,74,111,.35);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:40px;height:40px;border-radius:11px;
  background:linear-gradient(150deg,var(--brand),var(--brand-dark));
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-size:18px;box-shadow:0 6px 14px -8px rgba(11,74,111,.7);
}
.brand-text{font-weight:800;font-size:19px;color:var(--ink);letter-spacing:0;white-space:nowrap;}
.brand:hover .brand-text{color:var(--brand);}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:12px;flex:1 1 auto;}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:8px 12px;
  font-size:15.5px;font-weight:600;color:var(--muted);
  border-radius:8px;
}
.nav-links a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.active{color:var(--brand);}
.nav-links a.active::after{transform:scaleX(1);}
.header-tools{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:var(--bg);border:1px solid transparent;
  border-radius:10px;height:40px;padding:0 12px;width:190px;
  transition:border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.nav-search i{color:var(--weak);font-size:14px;}
.nav-search input{
  border:0;background:transparent;outline:none;width:100%;
  font-size:14.5px;
}
.nav-search input::placeholder{color:var(--weak);}
.nav-search:focus-within{background:#fff;border-color:var(--brand);box-shadow:0 0 0 4px rgba(11,74,111,.08);}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--accent);color:#fff;font-weight:600;font-size:15.5px;
  border:1px solid var(--accent);
  border-radius:var(--radius-btn);
  padding:11px 22px;
  transition:background var(--ease),transform var(--ease),box-shadow var(--ease);
  box-shadow:0 10px 22px -14px rgba(238,108,58,.9);
}
.btn-brand:hover{background:var(--accent-dark);border-color:var(--accent-dark);color:#fff;transform:translateY(-1px);}
.btn-brand:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:#fff;color:var(--brand);font-weight:600;font-size:15.5px;
  border:1px solid rgba(11,74,111,.28);
  border-radius:var(--radius-btn);
  padding:11px 22px;
  transition:background var(--ease),transform var(--ease),border-color var(--ease),color var(--ease);
}
.btn-ghost:hover{background:var(--brand-light);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(0);}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:600;color:var(--brand);font-size:15.5px;
}
.btn-text i{transition:transform var(--ease);font-size:13px;}
.btn-text:hover{color:var(--accent);}
.btn-text:hover i{transform:translateX(4px);}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--brand);font-size:18px;
}
.offcanvas{width:320px !important;}
.offcanvas-body .nav-links-mobile{display:flex;flex-direction:column;gap:4px;margin:0 0 20px;}
.offcanvas-body .nav-links-mobile a{
  display:block;padding:13px 14px;border-radius:10px;font-weight:600;color:var(--muted);
  border:1px solid transparent;
}
.offcanvas-body .nav-links-mobile a:hover{background:var(--brand-light);color:var(--brand);}
.offcanvas-body .nav-links-mobile a.active{background:var(--brand-light);color:var(--brand);border-color:rgba(11,74,111,.18);}
.offcanvas-body .mobile-actions{display:flex;flex-direction:column;gap:12px;}
.offcanvas-body .mobile-actions .btn-brand,
.offcanvas-body .mobile-actions .btn-ghost{width:100%;min-height:44px;}
.offcanvas-body .nav-search{width:100%;margin-bottom:16px;}

/* ---------- 面包屑 & Banner ---------- */
.page-banner{
  position:relative;
  background-image:linear-gradient(100deg,rgba(255,255,255,.94) 0%,rgba(255,255,255,.86) 42%,rgba(232,241,247,.72) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover,cover;
  background-position:center,center;
  border-bottom:1px solid var(--line);
  padding:34px 0 56px;
}
.breadcrumb-nav{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:14px;color:var(--weak);margin-bottom:26px;
}
.breadcrumb-nav a{color:var(--muted);font-weight:500;}
.breadcrumb-nav a:hover{color:var(--accent);}
.breadcrumb-nav .sep{color:#C6D2DC;}
.breadcrumb-nav .current{color:var(--brand);font-weight:600;}
.banner-tag{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid rgba(31,157,143,.32);color:var(--teal);
  font-size:13px;font-weight:600;border-radius:999px;padding:7px 15px;margin-bottom:18px;
}
.page-banner h1{font-size:42px;max-width:900px;margin-bottom:16px;}
.page-banner h1 em{font-style:normal;color:var(--brand);}
.page-banner .banner-lead{
  max-width:720px;font-size:17px;color:var(--muted);margin:0 0 26px;
}
.banner-meta{display:flex;flex-wrap:wrap;gap:12px 28px;}
.banner-meta span{
  display:inline-flex;align-items:center;gap:9px;font-size:14.5px;color:var(--muted);font-weight:500;
}
.banner-meta i{color:var(--brand);font-size:15px;}

/* ---------- 1 大 2 小 混排卡片 ---------- */
.mix-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.mix-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius);
  overflow:hidden;
  box-shadow:var(--shadow);
  display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.mix-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(11,74,111,.2);}
.mix-card .thumb{
  position:relative;overflow:hidden;background:var(--brand-light);
}
.mix-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 400ms ease;}
.mix-card:hover .thumb img{transform:scale(1.04);}
.mix-card .thumb .badge-soft{
  position:absolute;left:14px;top:14px;
  background:rgba(255,255,255,.94);color:var(--teal);
  font-size:12.5px;font-weight:600;border-radius:999px;padding:5px 12px;
}
.badge-soft{background:var(--teal-light);color:var(--teal);font-size:12.5px;font-weight:600;border-radius:999px;padding:5px 12px;display:inline-block;}
.card-body{padding:26px 26px 28px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-body h3{font-size:21px;margin-bottom:12px;}
.card-body p{color:var(--muted);font-size:15.5px;margin-bottom:18px;}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:20px;}
.card-tags span{
  font-size:13px;color:var(--brand);background:var(--brand-light);
  border-radius:999px;padding:4px 12px;font-weight:500;
}
.card-link{margin-top:auto;}
.mix-card--lead{grid-column:span 7;grid-row:span 2;}
.mix-card--lead .thumb{aspect-ratio:16/10;}
.mix-card--lead .card-body h3{font-size:26px;}
.mix-card--lead .card-body p{font-size:16px;}
.mix-card--side{grid-column:span 5;}
.mix-card--side .thumb{aspect-ratio:16/9;}
.mix-card--side .card-body{padding:22px 24px 24px;}
.mix-card--side .card-body p{margin-bottom:14px;font-size:15px;}

/* ---------- 通栏浅底说明带 ---------- */
.band{
  background:var(--brand-light);
  border-top:1px solid rgba(11,74,111,.1);
  border-bottom:1px solid rgba(11,74,111,.1);
  padding:88px 0;
}
.band h2{margin-bottom:16px;max-width:760px;}
.band .band-lead{max-width:820px;color:var(--muted);font-size:16.5px;margin-bottom:44px;}
.number-points{
  display:grid;
  grid-template-columns:1.15fr 1fr 1fr;
  gap:28px;
}
.number-point{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-sm);
  padding:28px 26px;
  box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease);
}
.number-point:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.number-point .num{
  font-size:34px;font-weight:800;line-height:1;
  color:var(--brand-light);
  -webkit-text-stroke:1px rgba(11,74,111,.42);
  margin-bottom:14px;display:block;
}
.number-point h3{font-size:18.5px;margin-bottom:10px;}
.number-point p{color:var(--muted);font-size:15px;margin:0;}

/* ---------- 场景标签带 ---------- */
.scene-list{
  display:grid;grid-template-columns:repeat(2,1fr);gap:18px 32px;
  margin-top:8px;
}
.scene-item{
  display:flex;gap:16px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-sm);
  padding:22px 24px;box-shadow:var(--shadow);transition:border-color var(--ease),transform var(--ease);
}
.scene-item:hover{border-color:rgba(11,74,111,.24);transform:translateY(-2px);}
.scene-item i{
  flex:0 0 auto;width:42px;height:42px;border-radius:11px;
  background:var(--brand-light);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.scene-item h4{font-size:17px;margin-bottom:6px;}
.scene-item p{margin:0;color:var(--muted);font-size:15px;}

/* ---------- 数据条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);border-radius:var(--radius);
  background:#fff;box-shadow:var(--shadow);overflow:hidden;
}
.stat-strip div{
  padding:28px 24px;border-right:1px solid var(--line);
}
.stat-strip div:last-child{border-right:0;}
.stat-strip b{display:block;font-size:27px;font-weight:800;color:var(--brand);margin-bottom:6px;}
.stat-strip span{font-size:14.5px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.accordion-item{border:0;border-bottom:1px solid var(--line);background:transparent;}
.accordion-item:first-of-type{border-top:1px solid var(--line);}
.accordion-button{
  position:relative;
  background:transparent;
  color:var(--ink);
  font-size:17.5px;font-weight:700;
  padding:24px 52px 24px 20px;
  box-shadow:none !important;
  border-radius:0 !important;
}
.accordion-button::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:transparent;border-radius:3px;transition:background var(--ease);
}
.accordion-button:not(.collapsed){color:var(--brand);}
.accordion-button:not(.collapsed)::before{background:var(--brand);}
.accordion-button:not(.collapsed){background:rgba(232,241,247,.55);}
.accordion-button::after{
  background-image:none;
  content:"\f107";
  font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--brand);
  width:auto;height:auto;
  position:absolute;right:16px;top:50%;transform:translateY(-50%);
  transition:transform var(--ease);
  font-size:16px;
}
.accordion-button:not(.collapsed)::after{transform:translateY(-50%) rotate(180deg);}
.accordion-body{
  padding:4px 52px 26px 20px;
  color:var(--muted);font-size:15.5px;line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--deep);
  color:#fff;
  padding:72px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(238,108,58,.28),transparent 68%);
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  position:relative;z-index:1;
}
.cta-inner h2{color:#fff;font-size:28px;margin-bottom:10px;}
.cta-inner p{color:rgba(255,255,255,.72);margin:0;font-size:16px;max-width:640px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}
.cta-actions .btn-brand{background:var(--accent);border-color:var(--accent);}
.cta-actions .btn-line{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(255,255,255,.42);color:#fff;font-weight:600;font-size:15.5px;
  border-radius:var(--radius-btn);padding:11px 22px;background:transparent;
  transition:background var(--ease),border-color var(--ease),transform var(--ease);
}
.cta-actions .btn-line:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;transform:translateY(-1px);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:rgba(255,255,255,.76);padding:72px 0 0;font-size:15px;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);box-shadow:none;}
.footer-brand b{color:#fff;font-size:18px;font-weight:800;}
.site-footer p{color:rgba(255,255,255,.66);font-size:14.5px;line-height:1.85;margin:0;}
.site-footer h4{color:#fff;font-size:16px;margin-bottom:18px;}
.site-footer ul li{margin-bottom:11px;}
.site-footer ul a{color:rgba(255,255,255,.72);font-size:14.5px;}
.site-footer ul a:hover{color:var(--accent);}
.site-footer ul li span{font-size:14.5px;color:rgba(255,255,255,.72);}
.footer-qr{
  margin-top:14px;width:112px;height:112px;border-radius:12px;
  border:1px dashed rgba(255,255,255,.3);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;color:rgba(255,255,255,.55);text-align:center;padding:0 8px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0 28px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.58);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container{max-width:1120px;}
  h1{font-size:38px;}
  .page-banner h1{font-size:36px;}
  .mix-card--lead{grid-column:span 7;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
  .number-points{grid-template-columns:1fr 1fr;}
  .number-points .number-point:first-child{grid-column:1 / -1;}
}
@media (max-width:991.98px){
  .nav-links,.header-tools .nav-search,.header-tools .btn-brand{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .header-inner{justify-content:space-between;}
  .section{padding:72px 0;}
  .section--tight{padding:56px 0;}
  .band{padding:64px 0;}
  .page-banner{padding:26px 0 44px;}
  .page-banner h1{font-size:32px;}
  h2{font-size:26px;}
  .mix-card--lead,.mix-card--side{grid-column:span 12;grid-row:auto;}
  .mix-card--lead .thumb{aspect-ratio:16/9;}
  .scene-list{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .stat-strip div:nth-child(2){border-right:0;}
  .stat-strip div:nth-child(1),.stat-strip div:nth-child(2){border-bottom:1px solid var(--line);}
  .cta-band{padding:56px 0;}
  .cta-inner h2{font-size:24px;}
}
@media (max-width:575.98px){
  body{font-size:15.5px;line-height:1.8;}
  .container{padding:0 16px;}
  h1{font-size:30px;}
  .page-banner h1{font-size:27px;}
  h2{font-size:23px;}
  h3{font-size:19px;}
  .section{padding:48px 0;}
  .section--tight{padding:44px 0;}
  .band{padding:48px 0;}
  .section-head{margin-bottom:30px;}
  .banner-meta{gap:10px 18px;}
  .number-points{grid-template-columns:1fr;}
  .card-body{padding:22px 20px 24px;}
  .mix-card--lead .card-body h3{font-size:21px;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-strip div{border-right:0;border-bottom:1px solid var(--line);}
  .stat-strip div:last-child{border-bottom:0;}
  .accordion-button{font-size:16px;padding:18px 44px 18px 16px;}
  .accordion-body{padding:2px 24px 20px 16px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn-brand,.cta-actions .btn-line{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;gap:32px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}