/* roulang page: index */
:root{
  --brand:#155E9E;
  --brand-dark:#0E4A7A;
  --brand-light:#E8F1F9;
  --accent:#FF6B35;
  --accent-dark:#E85A28;
  --teal:#16B8A6;
  --bg:#F5F8FC;
  --surface:#FFFFFF;
  --ink:#102033;
  --muted:#5B6B7F;
  --line:#E3EAF2;
  --success:#1F9D6A;
  --warning:#D9822B;
  --footer:#0F2740;
  --radius-card:16px;
  --radius-btn:11px;
  --radius-img:18px;
  --radius-input:10px;
  --shadow-sm:0 4px 14px rgba(16,32,51,.06);
  --shadow:0 10px 30px rgba(16,32,51,.08);
  --shadow-lg:0 16px 40px rgba(16,32,51,.12);
  --space-section:96px;
  --bs-primary:#155E9E;
  --bs-body-bg:#F5F8FC;
  --bs-body-color:#102033;
  --bs-border-radius:12px;
  --bs-link-color:#155E9E;
  --bs-link-hover-color:#0E4A7A;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;
}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;line-height:1.3;color:var(--ink)}
h1{font-size:clamp(2rem,4vw,3.25rem);letter-spacing:-.5px}
h2{font-size:clamp(1.5rem,3vw,2.25rem)}
h3{font-size:1.25rem}
h4{font-size:1.125rem}
p{margin:0 0 1em}
ul{padding-left:1.1rem}
.container-site{width:100%;max-width:1240px;margin:0 auto;padding:0 20px}
.section{padding:var(--space-section) 0}
.section-alt{background:linear-gradient(180deg,#F5F8FC 0%,#EDF4FA 100%)}
.section-head{max-width:760px;margin-bottom:48px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.875rem;font-weight:600;color:var(--brand);
  background:var(--brand-light);border:1px solid #D6E5F3;
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.section-head p{color:var(--muted);font-size:1.0625rem;margin:0}
.lead-muted{color:var(--muted)}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(16,32,51,.08)}
.site-nav{
  display:flex;align-items:center;gap:24px;
  min-height:68px;
}
.brand{
  display:flex;align-items:center;gap:10px;
  font-size:1.28rem;font-weight:800;letter-spacing:-.4px;
  color:var(--ink);white-space:nowrap;
}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-size:.95rem;position:relative;overflow:hidden;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;width:26px;height:2px;background:var(--accent);
  transform:rotate(-32deg);left:4px;bottom:10px;border-radius:2px;
}
.brand-mark i{position:relative;z-index:1}
.brand-text small{
  display:block;font-size:.6875rem;font-weight:500;color:var(--muted);
  letter-spacing:.6px;line-height:1.2;
}
.nav-links{
  display:flex;align-items:center;gap:4px;
  list-style:none;margin:0 0 0 auto;padding:0;
}
.nav-links a{
  display:block;padding:9px 13px;border-radius:9px;
  font-size:.9375rem;font-weight:500;color:#33455A;
  transition:background .2s ease,color .2s ease;
}
.nav-links a:hover{background:var(--brand-light);color:var(--brand-dark)}
.nav-links a.active{color:var(--brand);background:var(--brand-light);font-weight:600}
.nav-side{display:flex;align-items:center;gap:12px}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:#F1F6FB;border:1px solid var(--line);
  border-radius:999px;padding:6px 14px;
}
.nav-search i{color:var(--muted);font-size:.85rem}
.nav-search input{
  border:0;background:transparent;outline:none;
  font-size:.875rem;width:120px;color:var(--ink);
}
.nav-toggle{
  display:none;border:1px solid var(--line);background:#fff;
  width:44px;height:44px;border-radius:11px;color:var(--ink);font-size:1.1rem;
}

/* ---------- Buttons ---------- */
.btn-brand,.btn-outline-brand,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:1rem;font-weight:600;line-height:1;
  padding:15px 26px;border-radius:var(--radius-btn);
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease;
}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(21,94,158,.24)}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(21,94,158,.3)}
.btn-brand.accent{background:var(--accent);box-shadow:0 8px 20px rgba(255,107,53,.26)}
.btn-brand.accent:hover{background:var(--accent-dark);box-shadow:0 12px 26px rgba(255,107,53,.32)}
.btn-outline-brand{background:#fff;border-color:#BAD4E8;color:var(--brand)}
.btn-outline-brand:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:var(--brand);padding:12px 4px}
.btn-ghost i{transition:transform .2s ease}
.btn-ghost:hover i{transform:translateX(4px)}
.btn-sm-brand{padding:11px 20px;font-size:.9375rem}
.btn-block{width:100%;min-height:48px}

/* ---------- Badges ---------- */
.badge-soft{
  display:inline-block;font-size:.8125rem;font-weight:600;
  padding:5px 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand-dark);
}
.badge-soft.accent{background:#FFEDE5;color:var(--accent-dark)}
.badge-soft.teal{background:#E2F7F4;color:#10887A}

/* ---------- Hero ---------- */
.hero-split{padding:calc(68px + 48px) 0 80px;position:relative;overflow:hidden}
.hero-split::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(#155E9E 1px,transparent 1px);
  background-size:26px 26px;opacity:.05;pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);gap:56px;align-items:center;position:relative;z-index:1}
.hero-copy h1{margin-bottom:20px}
.hero-copy h1 .hl{color:var(--brand)}
.hero-sub{font-size:1.125rem;color:var(--muted);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:12px 26px;
  padding-top:22px;border-top:1px dashed var(--line);
}
.hero-trust div{display:flex;align-items:center;gap:8px;font-size:.9375rem;color:#33455A}
.hero-trust i{color:var(--teal)}
.hero-visual{position:relative}
.hero-visual img{border-radius:20px;box-shadow:var(--shadow-lg);width:100%;height:auto;object-fit:cover}
.hero-float{
  position:absolute;background:#fff;border-radius:14px;box-shadow:var(--shadow);
  padding:14px 18px;border:1px solid var(--line);
}
.hero-float.f1{left:-22px;bottom:38px}
.hero-float.f2{right:-14px;top:34px}
.hero-float .num{font-size:1.5rem;font-weight:800;color:var(--brand);line-height:1.2}
.hero-float .num.teal{color:var(--teal)}
.hero-float .lbl{font-size:.8125rem;color:var(--muted)}

/* ---------- Cards ---------- */
.card-soft{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);padding:28px;height:100%;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card-soft:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:#D3E3F1}
.card-icon{
  width:48px;height:48px;border-radius:13px;display:inline-flex;
  align-items:center;justify-content:center;font-size:1.15rem;
  background:var(--brand-light);color:var(--brand);margin-bottom:18px;
}
.card-icon.accent{background:#FFEDE5;color:var(--accent-dark)}
.card-icon.teal{background:#E2F7F4;color:#10887A}
.card-soft h3{margin-bottom:10px}
.card-soft p{color:var(--muted);margin-bottom:16px}
.pain-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.pain-list li{display:flex;gap:10px;font-size:.9375rem;color:#33455A}
.pain-list i{color:var(--brand);margin-top:5px;font-size:.75rem}

/* Solution feature grid */
.solution-grid{display:grid;grid-template-columns:1.15fr 1fr 1fr;gap:24px}
.card-feature{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.card-feature:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.card-feature .thumb{position:relative}
.card-feature .thumb img{width:100%;height:210px;object-fit:cover}
.card-feature .num-badge{
  position:absolute;left:18px;bottom:-18px;width:42px;height:42px;border-radius:12px;
  background:var(--brand);color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;box-shadow:0 8px 18px rgba(21,94,158,.28);
}
.card-feature .body{padding:32px 26px 26px;display:flex;flex-direction:column;flex:1}
.card-feature .body p{color:var(--muted);margin-bottom:14px}
.card-feature ul{list-style:none;padding:0;margin:0 0 20px;display:flex;flex-direction:column;gap:8px}
.card-feature ul li{display:flex;gap:9px;font-size:.9375rem;color:#33455A}
.card-feature ul i{color:var(--teal);margin-top:5px;font-size:.75rem}
.card-feature .foot{margin-top:auto}
.card-feature.tall .thumb img{height:250px}

/* ---------- Stats ---------- */
.stats-wrap{
  background:#fff;border:1px solid var(--line);border-radius:22px;
  box-shadow:var(--shadow);padding:16px;
  background-image:linear-gradient(180deg,#FFFFFF 0%,#F7FAFD 100%);
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.stat-item{padding:30px 22px;text-align:center;position:relative}
.stat-item+.stat-item::before{
  content:"";position:absolute;left:0;top:22%;height:56%;width:1px;background:var(--line);
}
.stat-item .num{font-size:clamp(1.9rem,3.4vw,2.6rem);font-weight:800;color:var(--brand);line-height:1.15}
.stat-item .num.teal{color:var(--teal)}
.stat-item .num.accent{color:var(--accent)}
.stat-item .lbl{font-size:.9375rem;font-weight:600;margin-top:6px}
.stat-item .desc{font-size:.8125rem;color:var(--muted);margin-top:4px}

/* ---------- News list ---------- */
.list-news{display:grid;grid-template-columns:1.02fr 1fr 1fr;gap:24px}
.news-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.news-card .thumb img{width:100%;height:190px;object-fit:cover}
.news-card .body{padding:22px;display:flex;flex-direction:column;flex:1}
.news-meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;font-size:.8125rem;color:var(--muted);margin-bottom:12px}
.news-card h3{font-size:1.125rem;margin-bottom:10px}
.news-card h3 a{color:var(--ink)}
.news-card h3 a:hover{color:var(--brand)}
.news-card p{font-size:.9375rem;color:var(--muted);margin-bottom:18px}
.news-card .foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;font-size:.875rem}
.news-card.featured{grid-row:span 1}
.news-card.featured .thumb img{height:248px}
.empty-state{
  grid-column:1/-1;text-align:center;background:#fff;border:1px dashed #C6D9EA;
  border-radius:var(--radius-card);padding:56px 24px;
}
.empty-state i{font-size:2rem;color:var(--brand);margin-bottom:14px;display:block}
.empty-state p{color:var(--muted);margin-bottom:20px}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-sm);
}
.faq-accordion .accordion-button{
  font-size:1.0625rem;font-weight:600;color:var(--ink);background:#fff;
  padding:20px 22px;box-shadow:none;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand);background:#F7FBFF}
.faq-accordion .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-accordion .accordion-button::after{
  background-image:none;content:"\2b";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:.9rem;color:var(--brand);display:flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:50%;background-color:var(--brand-light);
  transition:transform .25s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{content:"\f068";transform:rotate(0)}
.faq-accordion .accordion-body{padding:0 22px 22px;color:var(--muted);font-size:.9688rem}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(135deg,#0E4A7A 0%,#155E9E 100%);
  border-radius:24px;padding:56px 48px;color:#fff;position:relative;overflow:hidden;
  box-shadow:0 20px 44px rgba(14,74,122,.28);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;
  border-radius:50%;border:26px solid rgba(255,255,255,.08);
}
.cta-band h2{color:#fff;margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.85);max-width:640px;margin-bottom:28px}
.cta-band .btn-brand{background:var(--accent);box-shadow:0 10px 24px rgba(255,107,53,.32)}
.cta-band .btn-brand:hover{background:var(--accent-dark)}
.cta-band .btn-outline-brand{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.cta-band .btn-outline-brand:hover{background:rgba(255,255,255,.14);color:#fff}

/* ---------- Privacy / trust ---------- */
.trust-grid{display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center}
.trust-badges{display:flex;flex-wrap:wrap;gap:12px}
.trust-badges span{
  display:inline-flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--line);border-radius:11px;
  padding:11px 16px;font-size:.875rem;font-weight:600;color:#33455A;box-shadow:var(--shadow-sm);
}
.trust-badges i{color:var(--teal)}
.privacy-note{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow-sm);
}
.privacy-note p{font-size:.9375rem;color:var(--muted);margin-bottom:12px}

/* ---------- Footer ---------- */
.footer-main{background:var(--footer);color:#C9D8E6;padding:72px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-main h4{color:#fff;font-size:1rem;margin-bottom:18px;letter-spacing:.3px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:800;font-size:1.2rem;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#1E76BF 0%,#155E9E 100%)}
.footer-main p{font-size:.9063rem;color:#9FB4C8;line-height:1.8}
.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer-links a{color:#C9D8E6;font-size:.9063rem}
.footer-links a:hover{color:#fff}
.footer-contact{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px}
.footer-contact li{display:flex;gap:10px;font-size:.9063rem;color:#C9D8E6}
.footer-contact i{color:var(--teal);margin-top:5px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:48px;padding-top:22px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:.8438rem;color:#8FA6BC;
}
.footer-bottom a{color:#8FA6BC}
.footer-bottom a:hover{color:#fff}

/* ---------- Modal ---------- */
.form-modal .modal-content{
  border:0;border-radius:20px;overflow:hidden;box-shadow:0 30px 70px rgba(16,32,51,.28);
}
.form-modal .modal-header{
  background:linear-gradient(135deg,#0E4A7A,#155E9E);color:#fff;border:0;padding:22px 26px;
}
.form-modal .modal-header h5{color:#fff;font-size:1.1875rem;margin:0;font-weight:700}
.form-modal .modal-header .btn-close{filter:invert(1) grayscale(1);opacity:.85}
.form-modal .modal-body{padding:26px}
.form-modal .form-label{font-size:.9375rem;font-weight:600;margin-bottom:6px}
.form-modal .form-control,.form-modal .form-select{
  border-radius:var(--radius-input);border:1px solid var(--line);
  padding:12px 14px;font-size:.9688rem;background:#FAFCFE;
}
.form-modal .form-control:focus,.form-modal .form-select:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(21,94,158,.14);background:#fff;
}
.form-modal .form-check-label{font-size:.875rem;color:var(--muted)}
.form-modal .form-check-input:checked{background-color:var(--brand);border-color:var(--brand)}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .hero-grid{gap:40px}
  .nav-search input{width:96px}
}
@media (max-width:991.98px){
  :root{--space-section:64px}
  .hero-split{padding:calc(68px + 36px) 0 56px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-visual{order:2}
  .hero-float.f1{left:12px;bottom:-16px}
  .hero-float.f2{right:12px;top:-14px}
  .solution-grid{grid-template-columns:1fr 1fr}
  .card-feature.tall{grid-column:span 2}
  .list-news{grid-template-columns:1fr 1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(3)::before{display:none}
  .stat-item:nth-child(3),.stat-item:nth-child(4){border-top:1px solid var(--line)}
  .trust-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-side .nav-search{display:none}
}
@media (max-width:767.98px){
  .section{padding:52px 0}
  .solution-grid{grid-template-columns:1fr}
  .card-feature.tall{grid-column:span 1}
  .list-news{grid-template-columns:1fr}
  .cta-band{padding:38px 24px;border-radius:18px}
  .stats-grid{grid-template-columns:1fr}
  .stat-item+.stat-item::before{display:none}
  .stat-item{border-top:1px solid var(--line)}
  .stat-item:first-child{border-top:0}
  .hero-actions .btn-brand,.hero-actions .btn-outline-brand{width:100%}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:575.98px){
  .container-site{padding:0 16px}
  .hero-float{position:static;margin-top:14px;display:inline-block}
  .hero-visual{display:flex;flex-direction:column}
  .section-head{margin-bottom:32px}
}

/* roulang page: article */
:root{
  --brand:#155E9E;
  --brand-dark:#0E4A7A;
  --brand-light:#E8F1F9;
  --accent:#FF6B35;
  --accent-dark:#E85A28;
  --teal:#16B8A6;
  --bg:#F5F8FC;
  --surface:#FFFFFF;
  --ink:#102033;
  --muted:#5B6B7F;
  --line:#E3EAF2;
  --success:#1F9D6A;
  --warn:#D9822B;
  --footer-bg:#0F2740;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-1:0 10px 30px rgba(16,32,51,.08);
  --shadow-2:0 16px 40px rgba(16,32,51,.12);
  --nav-h:68px;
  --bs-primary:#155E9E;
  --bs-body-bg:#F5F8FC;
  --bs-body-color:#102033;
  --bs-border-radius:16px;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-link-color:#155E9E;
  --bs-link-hover-color:#0E4A7A;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
img{max-width:100%;height:auto;display:block;}
button,input,select,textarea{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
h1,h2,h3,h4{margin:0;font-weight:650;color:var(--ink);line-height:1.3;}

.container-site{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 22px rgba(16,32,51,.08);}
.site-nav{display:flex;align-items:center;gap:22px;height:var(--nav-h);}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),var(--teal));
  color:#fff;font-size:17px;box-shadow:0 6px 16px rgba(21,94,158,.28);
}
.brand-text{display:flex;flex-direction:column;font-weight:700;font-size:19px;letter-spacing:.4px;color:var(--ink);line-height:1.1;}
.brand-text small{font-size:11px;font-weight:500;color:var(--muted);letter-spacing:.6px;margin-top:2px;}
.nav-links{display:flex;align-items:center;gap:4px;list-style:none;margin:0 0 0 8px;padding:0;flex:1 1 auto;}
.nav-links a{
  display:block;padding:8px 12px;border-radius:10px;
  font-size:15px;font-weight:500;color:#2A3B50;white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.nav-links a:hover{background:var(--brand-light);color:var(--brand-dark);}
.nav-links a.active{background:var(--brand-light);color:var(--brand-dark);font-weight:600;}
.nav-side{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:var(--bg);border:1px solid var(--line);border-radius:999px;
  padding:0 14px;height:40px;transition:border-color .2s ease,background .2s ease;
}
.nav-search i{color:var(--muted);font-size:13px;}
.nav-search input{
  border:0;background:transparent;outline:none;width:132px;font-size:14px;
}
.nav-search:focus-within{border-color:var(--brand);background:#fff;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);border-radius:11px;
  background:#fff;color:var(--ink);align-items:center;justify-content:center;font-size:17px;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}
.nav-links li{list-style:none;}

/* ---------- 按钮 ---------- */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);color:#fff;border:1px solid var(--brand);
  border-radius:var(--radius-btn);padding:12px 22px;font-size:15px;font-weight:600;
  min-height:48px;cursor:pointer;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
  box-shadow:0 8px 20px rgba(21,94,158,.20);
}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(21,94,158,.26);}
.btn-brand:active{transform:translateY(0);}
.btn-sm-brand{min-height:40px;padding:8px 18px;font-size:14px;border-radius:10px;box-shadow:none;}
.btn-outline-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:#fff;color:var(--brand);border:1px solid var(--brand);
  border-radius:var(--radius-btn);padding:12px 22px;font-size:15px;font-weight:600;
  min-height:48px;cursor:pointer;transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-outline-brand:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px);box-shadow:var(--shadow-1);}
.btn-ghost-brand{
  display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-weight:600;
  background:transparent;border:0;padding:6px 0;cursor:pointer;font-size:15px;
}
.btn-ghost-brand i{transition:transform .2s ease;}
.btn-ghost-brand:hover i{transform:translateX(4px);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;color:var(--brand);}
.link-arrow i{transition:transform .2s ease;font-size:12px;}
.link-arrow:hover i{transform:translateX(4px);}

.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-light);color:var(--brand-dark);
  border-radius:999px;padding:6px 14px;font-size:13px;font-weight:600;letter-spacing:.3px;
}
.badge-accent{background:rgba(255,107,53,.12);color:var(--accent-dark);}
.badge-teal{background:rgba(22,184,166,.13);color:#0E8C7E;}

/* ---------- 阅读进度 ---------- */
.reading-progress{position:fixed;top:0;left:0;height:3px;width:0;background:linear-gradient(90deg,var(--brand),var(--teal));z-index:1100;transition:width .1s linear;}

/* ---------- 页头横幅 ---------- */
.page-hero{
  position:relative;
  background:linear-gradient(180deg,rgba(232,241,249,.94),rgba(245,248,252,.98)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  padding:44px 0 38px;
  border-bottom:1px solid var(--line);
}
.breadcrumb-site{list-style:none;display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin:0 0 18px;padding:0;font-size:14px;color:var(--muted);}
.breadcrumb-site li{display:flex;align-items:center;gap:8px;}
.breadcrumb-site li+li::before{content:"/";color:#B6C4D4;}
.breadcrumb-site a{color:var(--muted);}
.breadcrumb-site a:hover{color:var(--brand);}
.breadcrumb-site .current{color:var(--ink);font-weight:500;}
.hero-kicker{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:14px;}

/* ---------- 文章布局 ---------- */
.article-section{padding:48px 0 72px;}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start;}
.article-main{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:40px 44px 48px;box-shadow:var(--shadow-1);}
.article-title{font-size:clamp(1.75rem,3.4vw,2.5rem);letter-spacing:-.4px;margin-bottom:18px;}
.article-meta{display:flex;flex-wrap:wrap;gap:18px;padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:28px;font-size:14px;color:var(--muted);}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{color:var(--brand);font-size:13px;}
.article-cover{border-radius:16px;overflow:hidden;margin-bottom:30px;box-shadow:var(--shadow-1);}
.article-cover img{width:100%;height:auto;object-fit:cover;}
.article-cover figcaption{font-size:13px;color:var(--muted);padding:10px 4px 0;}

.article-body{max-width:800px;font-size:17px;line-height:1.9;color:#1B2B3F;}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 20px;}
.article-body h2{
  font-size:clamp(1.35rem,2.4vw,1.75rem);
  margin:48px 0 20px;padding-left:14px;border-left:4px solid var(--brand);line-height:1.4;
}
.article-body h3{font-size:1.22rem;margin:32px 0 16px;color:var(--brand-dark);}
.article-body h4{font-size:1.08rem;margin:24px 0 12px;}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:22px;}
.article-body li{margin-bottom:9px;}
.article-body blockquote{
  margin:26px 0;padding:20px 22px;background:var(--brand-light);
  border-left:4px solid var(--brand);border-radius:0 14px 14px 0;color:#22364C;font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:12px;margin:20px 0;box-shadow:var(--shadow-1);}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-body th,.article-body td{border:1px solid var(--line);padding:11px 14px;text-align:left;white-space:nowrap;}
.article-body th{background:var(--brand-light);color:var(--brand-dark);font-weight:600;}
.article-body a{font-weight:500;border-bottom:1px dashed rgba(21,94,158,.5);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:22px;position:sticky;top:calc(var(--nav-h) + 20px);}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);padding:22px;box-shadow:var(--shadow-1);}
.side-card h3{font-size:1.05rem;margin-bottom:14px;display:flex;align-items:center;gap:8px;}
.side-card h3 i{color:var(--brand);font-size:15px;}
.toc-list{list-style:none;margin:0;padding:0;counter-reset:toc;}
.toc-list li{margin-bottom:8px;counter-increment:toc;}
.toc-list a{display:block;font-size:14px;color:var(--muted);padding:7px 10px;border-radius:9px;border-left:2px solid transparent;line-height:1.55;}
.toc-list a::before{content:counter(toc) ". ";color:#9EAFC2;font-weight:600;}
.toc-list a:hover{background:var(--brand-light);color:var(--brand-dark);border-left-color:var(--brand);}
.side-cta{background:linear-gradient(150deg,var(--brand),#0B3B62);color:#fff;border:0;}
.side-cta h3{color:#fff;}
.side-cta h3 i{color:#8FD9CE;}
.side-cta p{font-size:14px;color:rgba(255,255,255,.82);margin-bottom:16px;}
.side-cta .btn-brand{background:#fff;color:var(--brand-dark);border-color:#fff;box-shadow:none;width:100%;}
.side-cta .btn-brand:hover{background:var(--brand-light);color:var(--brand-dark);}
.side-list{list-style:none;margin:0;padding:0;}
.side-list li{margin-bottom:12px;}
.side-list a{display:flex;gap:12px;align-items:center;color:var(--ink);font-size:15px;font-weight:500;}
.side-list img{width:56px;height:56px;border-radius:11px;object-fit:cover;flex:0 0 auto;}
.side-list a:hover{color:var(--brand);}

/* ---------- 空态 ---------- */
.empty-state{
  text-align:center;padding:56px 20px;border:1px dashed var(--line);
  border-radius:var(--radius-card);background:var(--bg);
}
.empty-icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:18px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand);font-size:24px;
}
.empty-state h2{font-size:1.35rem;margin-bottom:10px;}
.empty-state p{color:var(--muted);max-width:460px;margin:0 auto 22px;}

/* ---------- 相关推荐 ---------- */
.related-section{padding:0 0 72px;}
.section-head{max-width:660px;margin-bottom:32px;}
.section-head h2{font-size:clamp(1.5rem,3vw,2.1rem);margin-bottom:12px;}
.section-head p{color:var(--muted);margin:0;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card-soft{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;height:100%;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card-soft:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);border-color:#CFE0F0;}
.card-media{aspect-ratio:16/10;overflow:hidden;background:var(--brand-light);}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.card-soft:hover .card-media img{transform:scale(1.04);}
.card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.card-body h3{font-size:1.12rem;}
.card-body p{font-size:14.5px;color:var(--muted);margin:0;flex:1 1 auto;}
.card-tags{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- CTA 区块 ---------- */
.cta-band{padding:0 0 72px;}
.cta-inner{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#0E4A7A,#155E9E 55%,#127C93);
  border-radius:22px;padding:52px 48px;color:#fff;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 20px 46px rgba(14,74,122,.28);
}
.cta-inner::after{
  content:"";position:absolute;right:-60px;bottom:-80px;width:280px;height:280px;
  border-radius:50%;background:rgba(255,255,255,.08);
}
.cta-inner h2{color:#fff;font-size:clamp(1.4rem,2.6vw,1.95rem);margin-bottom:12px;position:relative;z-index:1;}
.cta-inner p{color:rgba(255,255,255,.85);margin:0;max-width:560px;position:relative;z-index:1;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:1;}
.cta-actions .btn-brand{background:var(--accent);border-color:var(--accent);box-shadow:0 10px 24px rgba(255,107,53,.32);}
.cta-actions .btn-brand:hover{background:var(--accent-dark);border-color:var(--accent-dark);}
.cta-actions .btn-outline-brand{background:transparent;color:#fff;border-color:rgba(255,255,255,.65);}
.cta-actions .btn-outline-brand:hover{background:rgba(255,255,255,.14);color:#fff;}

/* ---------- 信任与隐私 ---------- */
.trust-bar{padding:0 0 80px;}
.trust-inner{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 30px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  box-shadow:var(--shadow-1);
}
.trust-inner p{margin:0;font-size:14.5px;color:var(--muted);max-width:720px;}
.trust-badges{display:flex;flex-wrap:wrap;gap:10px;}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  border:1px solid var(--line);border-radius:12px;overflow:hidden;margin-bottom:14px;background:#fff;
}
.faq-accordion .accordion-button{
  font-weight:600;font-size:16px;color:var(--ink);background:#fff;padding:18px 20px;box-shadow:none;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand);background:var(--brand-light);}
.faq-accordion .accordion-button:focus{box-shadow:none;border-color:var(--line);}
.faq-accordion .accordion-body{color:var(--muted);font-size:15px;line-height:1.8;padding:0 20px 20px;}

/* ---------- 弹层表单 ---------- */
.form-modal .modal-content{border:0;border-radius:20px;overflow:hidden;box-shadow:0 26px 60px rgba(16,32,51,.22);}
.form-modal .modal-header{background:linear-gradient(135deg,var(--brand),#0E4A7A);color:#fff;border:0;padding:22px 26px;}
.form-modal .modal-title{font-size:1.15rem;font-weight:650;color:#fff;}
.form-modal .btn-close{filter:invert(1) grayscale(1) brightness(2);opacity:.85;}
.form-modal .modal-body{padding:26px;}
.form-label-site{font-size:14px;font-weight:600;color:#2A3B50;margin-bottom:7px;display:block;}
.form-control-site{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-input);
  padding:12px 14px;font-size:15px;background:#fff;min-height:48px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-control-site:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(21,94,158,.14);}
.form-check-site{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--muted);}
.form-check-site input{margin-top:4px;width:16px;height:16px;accent-color:var(--brand);}

/* ---------- 页脚 ---------- */
.footer-main{background:var(--footer-bg);color:#C7D6E6;padding:64px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:36px;border-bottom:1px solid rgba(255,255,255,.1);}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-main p{font-size:14px;color:#9FB4CB;margin:0;line-height:1.85;}
.footer-main h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-links{list-style:none;margin:0;padding:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#A9BDD3;font-size:14px;}
.footer-links a:hover{color:#fff;}
.footer-contact{list-style:none;margin:0;padding:0;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#A9BDD3;margin-bottom:12px;}
.footer-contact i{color:var(--teal);margin-top:4px;}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding-top:22px;font-size:13px;color:#7C93AC;}

/* ---------- 移动导航 ---------- */
.mobile-nav{background:#fff;width:320px;}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.mobile-nav .offcanvas-body{padding:18px 20px 28px;}
.mobile-nav .nav-item-link{display:block;padding:13px 14px;border-radius:11px;color:var(--ink);font-weight:500;font-size:15px;}
.mobile-nav .nav-item-link:hover,.mobile-nav .nav-item-link.active{background:var(--brand-light);color:var(--brand-dark);}
.mobile-nav .nav-sep{height:1px;background:var(--line);margin:16px 0;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .nav-search input{width:104px;}
  .nav-links a{padding:8px 10px;font-size:14px;}
}
@media (max-width:991.98px){
  .nav-links,.nav-search{display:none;}
  .nav-toggle{display:inline-flex;}
  .article-layout{grid-template-columns:1fr;gap:28px;}
  .article-side{position:static;}
  .article-main{padding:30px 24px 36px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{padding:40px 30px;}
}
@media (max-width:767.98px){
  .brand-text{font-size:17px;}
  .brand-text small{display:none;}
  .article-section{padding:32px 0 52px;}
  .page-hero{padding:32px 0 28px;}
  .article-title{font-size:1.6rem;}
  .article-body{font-size:16.5px;line-height:1.85;}
  .article-body h2{margin-top:36px;font-size:1.3rem;}
  .article-body h3{font-size:1.12rem;margin-top:26px;}
  .related-section,.cta-band{padding-bottom:52px;}
  .trust-bar{padding-bottom:56px;}
  .trust-inner{padding:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-brand,.cta-actions .btn-outline-brand{width:100%;}
}
@media (max-width:575.98px){
  .container-site{padding:0 16px;}
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .article-main{padding:24px 18px 30px;border-radius:16px;}
  .article-meta{gap:12px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --brand:#155E9E;
  --brand-dark:#0E4A7A;
  --brand-light:#E8F1F9;
  --accent:#FF6B35;
  --accent-dark:#E85A28;
  --teal:#16B8A6;
  --bg:#F5F8FC;
  --surface:#FFFFFF;
  --ink:#102033;
  --muted:#5B6B7F;
  --border:#E3EAF2;
  --success:#1F9D6A;
  --warning:#D9822B;
  --nav-h:72px;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-input:10px;
  --shadow-sm:0 10px 30px rgba(16,32,51,.08);
  --shadow-md:0 16px 40px rgba(16,32,51,.12);
  --font-sans:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-primary:#155E9E;
  --bs-body-bg:#F5F8FC;
  --bs-body-color:#102033;
  --bs-border-radius:12px;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-link-color:#155E9E;
  --bs-link-hover-color:#0E4A7A;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--ink);letter-spacing:-.01em}
p{margin:0}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
::selection{background:rgba(21,94,158,.16)}

/* ---------- 容器 ---------- */
.container-site{width:100%;max-width:1280px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-tight{padding:64px 0}
.section-alt{background:#fff}
.section-head{max-width:760px;margin-bottom:48px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;font-weight:600;letter-spacing:.08em;
  color:var(--brand);background:var(--brand-light);
  padding:6px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow i{font-size:.75rem;color:var(--accent)}
h1.hero-title{font-size:clamp(2rem,4vw,3.25rem);line-height:1.18;font-weight:700;margin-bottom:20px}
.section-head h2{font-size:clamp(1.5rem,3vw,2.25rem);line-height:1.28;margin-bottom:16px}
.section-head p{color:var(--muted);font-size:1rem}
h3{font-size:1.25rem;line-height:1.4}
h4{font-size:1.125rem;line-height:1.45}
.muted{color:var(--muted)}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.scrolled{box-shadow:0 6px 24px rgba(16,32,51,.08)}
.site-nav{
  height:var(--nav-h);
  display:flex;align-items:center;justify-content:space-between;gap:24px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0}
.brand-mark{
  width:42px;height:42px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-size:1.125rem;
  box-shadow:0 8px 18px rgba(21,94,158,.28);
}
.brand-text{
  display:flex;flex-direction:column;line-height:1.15;
  font-weight:700;font-size:1.25rem;color:var(--ink);letter-spacing:-.01em;
}
.brand-text small{font-size:.6875rem;font-weight:500;color:var(--muted);letter-spacing:.04em;margin-top:2px}
.nav-links{display:flex;align-items:center;gap:4px;flex:1;justify-content:center}
.nav-links > li > a{
  display:inline-block;padding:8px 14px;border-radius:10px;
  font-size:.9375rem;font-weight:500;color:var(--ink);white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.nav-links > li > a:hover{background:var(--brand-light);color:var(--brand-dark)}
.nav-links > li > a.active{color:var(--brand);background:var(--brand-light);font-weight:600}
.nav-side{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:var(--bg);border:1px solid var(--border);
  border-radius:999px;padding:7px 14px;
  transition:border-color .2s ease,background .2s ease;
}
.nav-search:focus-within{border-color:var(--brand);background:#fff}
.nav-search i{color:var(--muted);font-size:.8125rem}
.nav-search input{
  border:0;background:transparent;outline:none;
  width:120px;font-size:.875rem;color:var(--ink);
}
.nav-search input::placeholder{color:#93A2B4}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--border);
  background:#fff;border-radius:12px;color:var(--ink);font-size:1.125rem;
  align-items:center;justify-content:center;
}

/* ---------- 按钮 ---------- */
.btn-brand,.btn-outline-brand,.btn-ghost-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);font-weight:600;font-size:.9375rem;
  padding:13px 26px;min-height:48px;border:1.5px solid transparent;
  cursor:pointer;transition:all .22s ease;text-align:center;line-height:1.2;
}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(21,94,158,.22)}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(21,94,158,.3)}
.btn-outline-brand{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-outline-brand:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px)}
.btn-ghost-brand{background:transparent;color:var(--brand);padding:8px 4px;min-height:auto}
.btn-ghost-brand i{transition:transform .22s ease}
.btn-ghost-brand:hover i{transform:translateX(4px)}
.btn-sm-brand{padding:9px 18px;min-height:40px;font-size:.875rem;border-radius:10px}
.btn-light-brand{background:#fff;color:var(--brand);box-shadow:0 8px 20px rgba(0,0,0,.12)}
.btn-light-brand:hover{background:#fff;color:var(--brand-dark);transform:translateY(-1px)}

/* ---------- Hero 横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background-image:linear-gradient(105deg,rgba(14,74,122,.94) 0%,rgba(21,94,158,.86) 46%,rgba(21,94,158,.52) 100%),
                   url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:82px 0 76px;color:#fff;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(255,107,53,.28) 0%,rgba(255,107,53,0) 70%);
  pointer-events:none;
}
.page-hero .hero-inner{position:relative;z-index:2;max-width:820px}
.page-hero .eyebrow{background:rgba(255,255,255,.16);color:#fff}
.page-hero .eyebrow i{color:#FFB08A}
.page-hero h1{color:#fff;font-size:clamp(2rem,4vw,3.25rem);line-height:1.18;margin-bottom:20px}
.page-hero p.lead-text{color:rgba(255,255,255,.9);font-size:1.0625rem;max-width:680px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:34px}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  color:#fff;font-size:.8125rem;font-weight:500;
  padding:8px 14px;border-radius:999px;
}
.chip i{color:#7FE3D6}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--border)}
.breadcrumb-list{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  padding:16px 0;font-size:.875rem;color:var(--muted);
}
.breadcrumb-list a{color:var(--muted);font-weight:500}
.breadcrumb-list a:hover{color:var(--brand)}
.breadcrumb-list li::after{content:"/";margin-left:10px;color:#C3CFDC}
.breadcrumb-list li:last-child::after{content:"";margin:0}
.breadcrumb-list li:last-child{color:var(--brand);font-weight:600}

/* ---------- 通用卡片 ---------- */
.card-soft{
  background:var(--surface);border:1px solid var(--border);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
  transition:transform .28s ease,box-shadow .28s ease,border-color .28s ease;
  height:100%;overflow:hidden;
}
.card-soft:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:#D3E1EE}
.card-pad{padding:28px}
.card-media{position:relative;overflow:hidden;border-radius:0}
.card-media img{width:100%;height:200px;object-fit:cover;transition:transform .5s ease}
.card-soft:hover .card-media img{transform:scale(1.04)}
.card-media .tag{
  position:absolute;left:14px;top:14px;
  background:rgba(255,255,255,.94);color:var(--brand);
  font-size:.75rem;font-weight:600;padding:5px 12px;border-radius:999px;
}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-light);color:var(--brand-dark);
  font-size:.75rem;font-weight:600;padding:5px 12px;border-radius:999px;
}
.badge-accent{background:#FFF0E9;color:var(--accent-dark)}
.badge-teal{background:#E2F7F4;color:#0F8C7E}
.icon-box{
  width:52px;height:52px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:1.25rem;background:var(--brand-light);color:var(--brand);
  margin-bottom:18px;
}
.icon-box.accent{background:#FFF0E9;color:var(--accent)}
.icon-box.teal{background:#E2F7F4;color:#0F8C7E}

/* ---------- 简介：左图右文 ---------- */
.intro-grid{display:grid;grid-template-columns:5fr 6fr;gap:56px;align-items:center}
.intro-media{position:relative}
.intro-media img{border-radius:20px;box-shadow:var(--shadow-md);width:100%;height:420px;object-fit:cover}
.intro-stat{
  position:absolute;right:-18px;bottom:-18px;
  background:#fff;border-radius:16px;padding:18px 22px;
  box-shadow:var(--shadow-md);border:1px solid var(--border);
  display:flex;align-items:center;gap:14px;
}
.intro-stat .num{font-size:1.75rem;font-weight:700;color:var(--brand);line-height:1}
.intro-stat .lab{font-size:.8125rem;color:var(--muted);line-height:1.4}
.intro-body h2{font-size:clamp(1.5rem,3vw,2.25rem);margin-bottom:18px}
.intro-body p{color:var(--muted);margin-bottom:16px}
.check-list{margin-top:24px;display:grid;gap:12px}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:.9375rem;color:var(--ink)}
.check-list i{color:var(--teal);margin-top:5px;font-size:.875rem}

/* ---------- 服务卡片网格 ---------- */
.grid-cards{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.grid-cards .card-soft{display:flex;flex-direction:column}
.grid-cards .card-pad{display:flex;flex-direction:column;flex:1}
.card-pad h3{margin-bottom:12px}
.card-pad p{color:var(--muted);font-size:.9375rem;margin-bottom:18px}
.mini-list{display:grid;gap:8px;margin-bottom:22px}
.mini-list li{display:flex;gap:8px;font-size:.875rem;color:var(--muted);align-items:flex-start}
.mini-list i{color:var(--accent);font-size:.75rem;margin-top:6px}
.card-foot{margin-top:auto;padding-top:8px}

/* ---------- 流程时间线 ---------- */
.timeline{position:relative;padding:8px 0}
.timeline::before{
  content:"";position:absolute;left:50%;top:0;bottom:0;width:2px;
  background:linear-gradient(180deg,rgba(21,94,158,.06),rgba(21,94,158,.28),rgba(21,94,158,.06));
  transform:translateX(-1px);
}
.tl-item{position:relative;width:50%;padding:0 52px 40px 0}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 40px 52px}
.tl-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);
  padding:24px 26px;box-shadow:var(--shadow-sm);
  transition:transform .28s ease,box-shadow .28s ease;
}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-md)}
.tl-card h3{font-size:1.0625rem;margin-bottom:8px}
.tl-card p{font-size:.9375rem;color:var(--muted)}
.tl-dot{
  position:absolute;top:20px;right:-21px;z-index:2;
  width:42px;height:42px;border-radius:50%;
  background:#fff;border:2px solid var(--brand);
  color:var(--brand);font-weight:700;font-size:.8125rem;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px rgba(21,94,158,.18);
}
.tl-item:nth-child(even) .tl-dot{right:auto;left:-21px}

/* ---------- 数据条 ---------- */
.stat-strip{
  background:var(--brand-light);border-radius:24px;padding:44px 40px;
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px;
  position:relative;overflow:hidden;
}
.stat-strip::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(21,94,158,.12) 1px,transparent 1px);
  background-size:18px 18px;opacity:.5;pointer-events:none;
}
.stat-item{position:relative;z-index:2;text-align:center;padding:0 8px}
.stat-item + .stat-item{border-left:1px solid rgba(21,94,158,.16)}
.stat-item .num{font-size:clamp(1.75rem,3vw,2.5rem);font-weight:700;color:var(--brand);line-height:1.1;letter-spacing:-.02em}
.stat-item .num.teal{color:#0F8C7E}
.stat-item .num.accent{color:var(--accent-dark)}
.stat-item .lab{font-size:.875rem;font-weight:600;color:var(--ink);margin-top:10px}
.stat-item .desc{font-size:.8125rem;color:var(--muted);margin-top:4px}

/* ---------- 适用场景 ---------- */
.scene-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.scene-item{
  background:#fff;border:1px dashed #CFDEEB;border-radius:14px;
  padding:22px;text-align:center;transition:all .25s ease;
}
.scene-item:hover{border-style:solid;border-color:var(--brand);box-shadow:var(--shadow-sm);transform:translateY(-3px)}
.scene-item i{font-size:1.375rem;color:var(--brand);margin-bottom:12px}
.scene-item h4{font-size:1rem;margin-bottom:6px}
.scene-item p{font-size:.8125rem;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-accordion .accordion-item{
  background:#fff;border:1px solid var(--border);border-radius:14px;
  margin-bottom:14px;overflow:hidden;box-shadow:0 6px 18px rgba(16,32,51,.05);
}
.faq-accordion .accordion-button{
  font-size:1.0625rem;font-weight:600;color:var(--ink);
  padding:20px 24px;background:#fff;box-shadow:none;border:0;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand);background:var(--brand-light)}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-3px}
.faq-accordion .accordion-button::after{
  background-image:none;content:"\f067";
  font-family:"Font Awesome 6 Free";font-weight:900;font-size:.75rem;
  width:28px;height:28px;border-radius:50%;background-color:var(--brand-light);
  color:var(--brand);display:flex;align-items:center;justify-content:center;
  transition:transform .25s ease,background-color .25s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  background-image:none;content:"\f068";
  transform:rotate(180deg);background-color:#fff;
}
.faq-accordion .accordion-body{padding:4px 24px 22px;color:var(--muted);font-size:.9375rem}

/* ---------- CTA 区块 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:24px;
  background-image:linear-gradient(112deg,rgba(15,39,64,.95) 0%,rgba(21,94,158,.9) 100%),
                   url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  padding:60px 56px;color:#fff;
  display:grid;grid-template-columns:1.6fr 1fr;gap:40px;align-items:center;
}
.cta-band h2{color:#fff;font-size:clamp(1.5rem,3vw,2.125rem);margin-bottom:14px}
.cta-band p{color:rgba(255,255,255,.86);font-size:.9375rem}
.cta-band .cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.cta-actions .btn-ghost-brand{color:#fff}
.cta-actions .btn-ghost-brand:hover{color:#FFB08A}

/* ---------- 隐私说明 ---------- */
.privacy-strip{
  background:#fff;border:1px solid var(--border);border-radius:18px;
  padding:26px 30px;display:flex;flex-wrap:wrap;gap:20px;align-items:center;justify-content:space-between;
}
.privacy-strip .p-text{display:flex;gap:14px;align-items:flex-start;max-width:640px}
.privacy-strip .p-text i{color:var(--teal);font-size:1.125rem;margin-top:4px}
.privacy-strip h4{font-size:1rem;margin-bottom:4px}
.privacy-strip p{font-size:.875rem;color:var(--muted)}
.trust-badges{display:flex;flex-wrap:wrap;gap:10px}
.trust-badges span{
  font-size:.75rem;font-weight:600;color:var(--brand-dark);
  background:var(--brand-light);padding:7px 14px;border-radius:999px;
}

/* ---------- 页脚 ---------- */
.footer-main{background:#0F2740;color:#fff;padding:68px 0 0;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:12px;font-size:1.25rem;font-weight:700;margin-bottom:16px}
.footer-brand .brand-mark{box-shadow:none}
.footer-main p{color:rgba(255,255,255,.72);font-size:.875rem;line-height:1.8;max-width:340px}
.footer-main h4{color:#fff;font-size:1rem;margin-bottom:18px}
.footer-links{display:grid;gap:10px}
.footer-links a{color:rgba(255,255,255,.72);font-size:.875rem}
.footer-links a:hover{color:#7FE3D6}
.footer-contact{display:grid;gap:12px}
.footer-contact li{display:flex;gap:10px;font-size:.875rem;color:rgba(255,255,255,.72);align-items:flex-start}
.footer-contact i{color:#7FE3D6;margin-top:4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:.8125rem;color:rgba(255,255,255,.6);
}

/* ---------- 弹层表单 ---------- */
.form-modal .modal-content{border:0;border-radius:20px;overflow:hidden;box-shadow:0 24px 60px rgba(16,32,51,.24)}
.form-modal .modal-header{
  border-bottom:1px solid var(--border);padding:22px 26px;align-items:flex-start;
}
.form-modal .modal-title{font-size:1.125rem;font-weight:700}
.form-modal .modal-sub{font-size:.8125rem;color:var(--muted);margin-top:4px}
.form-modal .modal-body{padding:24px 26px}
.form-modal .form-label{font-size:.875rem;font-weight:600;margin-bottom:6px}
.form-modal .form-control,.form-modal .form-select{
  border-radius:var(--radius-input);border:1px solid var(--border);
  padding:12px 14px;font-size:.9375rem;min-height:48px;
  background:var(--bg);transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.form-modal .form-control:focus,.form-modal .form-select:focus{
  border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 3px rgba(21,94,158,.14);
}
.form-modal .form-check-input{width:18px;height:18px;margin-top:4px;border-color:#C3CFDC}
.form-modal .form-check-input:checked{background-color:var(--brand);border-color:var(--brand)}
.form-modal .form-check-label{font-size:.8125rem;color:var(--muted)}
.form-modal .btn-brand{width:100%;height:48px}

/* ---------- 移动端导航 ---------- */
.mobile-nav{width:320px}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--border);padding:18px 22px}
.mobile-nav .offcanvas-body{padding:20px 22px}
.mobile-links{display:grid;gap:4px;margin-bottom:22px}
.mobile-links a{
  display:block;padding:13px 14px;border-radius:12px;
  font-size:.9375rem;font-weight:500;color:var(--ink);
}
.mobile-links a:hover,.mobile-links a.active{background:var(--brand-light);color:var(--brand-dark)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .nav-links > li > a{padding:8px 10px;font-size:.875rem}
  .nav-search input{width:96px}
  .grid-cards{grid-template-columns:repeat(2,minmax(0,1fr))}
  .scene-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:991.98px){
  .nav-links{display:none}
  .nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:64px 0}
  .section-tight{padding:48px 0}
  .section-head{margin-bottom:32px}
  .intro-grid{grid-template-columns:1fr;gap:48px}
  .intro-media img{height:320px}
  .intro-stat{right:12px;bottom:-14px}
  .timeline::before{left:20px;transform:none}
  .tl-item,.tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 26px 56px}
  .tl-dot,.tl-item:nth-child(even) .tl-dot{left:-1px;right:auto;top:16px;width:40px;height:40px}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));padding:34px 26px;gap:28px}
  .stat-item + .stat-item{border-left:0}
  .stat-item:nth-child(even){border-left:1px solid rgba(21,94,158,.16)}
  .cta-band{grid-template-columns:1fr;padding:44px 32px;gap:28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-main{padding-top:52px;margin-top:64px}
}
@media (max-width:767.98px){
  .container-site{padding:0 18px}
  .page-hero{padding:56px 0 52px}
  .grid-cards{grid-template-columns:1fr}
  .breadcrumb-list{padding:14px 0;font-size:.8125rem}
  .cta-band{padding:36px 24px;border-radius:18px}
  .privacy-strip{padding:22px}
}
@media (max-width:575.98px){
  .scene-grid{grid-template-columns:1fr}
  .stat-strip{grid-template-columns:1fr;padding:28px 22px}
  .stat-item:nth-child(even){border-left:0}
  .stat-item + .stat-item{border-top:1px solid rgba(21,94,158,.16);padding-top:20px}
  .hero-actions .btn-brand,.hero-actions .btn-outline-brand{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .intro-media img{height:240px}
  .card-media img{height:180px}
  .section{padding:52px 0}
}

/* roulang page: category2 */
:root{
  --brand:#155E9E;
  --brand-dark:#0E4A7A;
  --brand-deep:#0F2740;
  --brand-light:#E8F1F9;
  --accent:#FF6B35;
  --accent-dark:#E85A28;
  --teal:#16B8A6;
  --bg:#F5F8FC;
  --surface:#FFFFFF;
  --ink:#102033;
  --muted:#5B6B7F;
  --line:#E3EAF2;
  --success:#1F9D6A;
  --radius-card:16px;
  --radius-btn:11px;
  --radius-img:18px;
  --radius-input:10px;
  --shadow-card:0 10px 30px rgba(16,32,51,.08);
  --shadow-hover:0 16px 40px rgba(16,32,51,.12);
  --container:1240px;
  --bs-primary:#155E9E;
  --bs-body-bg:#F5F8FC;
  --bs-body-color:#102033;
  --bs-border-radius:14px;
  --bs-body-font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-link-color:#155E9E;
  --bs-link-hover-color:#0E4A7A;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
button{font-family:inherit}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;color:var(--ink);letter-spacing:.2px}
p{margin:0 0 1rem}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}

.container-site{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 20px;
}
.section{padding:104px 0}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin:0 auto 52px;text-align:center}
.section-head h2{font-size:clamp(1.5rem,3vw,2.25rem);margin-bottom:16px}
.section-head p{color:var(--muted);font-size:1.0625rem}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.8125rem;font-weight:600;letter-spacing:.08em;
  color:var(--brand);background:var(--brand-light);
  padding:7px 14px;border-radius:999px;margin-bottom:16px;
}
.eyebrow i{color:var(--accent)}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.95);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(16,32,51,.08)}
.site-nav{
  display:flex;align-items:center;gap:28px;
  min-height:72px;
}
.brand{
  display:flex;align-items:center;gap:12px;
  color:var(--ink);flex-shrink:0;
}
.brand:hover{color:var(--brand)}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-size:1.15rem;
  box-shadow:0 8px 18px rgba(21,94,158,.28);
}
.brand-text{
  display:flex;flex-direction:column;line-height:1.15;
  font-weight:700;font-size:1.25rem;letter-spacing:.3px;
}
.brand-text small{
  font-size:.6875rem;font-weight:500;color:var(--muted);letter-spacing:.06em;
}
.nav-links{
  display:flex;align-items:center;gap:4px;
  margin-left:auto;
}
.nav-links li a{
  position:relative;
  display:inline-block;
  padding:10px 14px;
  font-size:.9375rem;font-weight:500;
  color:var(--ink);border-radius:10px;
  transition:color .2s ease,background .2s ease;
}
.nav-links li a:hover{color:var(--brand);background:var(--brand-light)}
.nav-links li a.active{color:var(--brand);font-weight:600}
.nav-links li a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;
  height:2px;border-radius:2px;background:var(--accent);
}
.nav-side{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:var(--bg);border:1px solid var(--line);
  border-radius:999px;padding:0 14px;height:42px;
  transition:border-color .2s ease,background .2s ease;
}
.nav-search:focus-within{border-color:var(--brand);background:#fff}
.nav-search i{color:var(--muted);font-size:.875rem}
.nav-search input{
  border:0;background:transparent;outline:none;
  font-size:.875rem;width:132px;color:var(--ink);
}
.nav-search input::placeholder{color:#93A2B4}
.nav-toggle{
  display:none;width:44px;height:44px;
  border:1px solid var(--line);background:#fff;border-radius:12px;
  color:var(--ink);font-size:1.1rem;
  align-items:center;justify-content:center;
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}

/* 移动端抽屉 */
.offcanvas.mobile-nav{max-width:320px;border:0}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.mobile-nav .offcanvas-body{padding:16px 20px 28px}
.mobile-nav .m-links li a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;font-size:1rem;font-weight:500;color:var(--ink);
  border-bottom:1px solid var(--line);
}
.mobile-nav .m-links li a.active{color:var(--brand);font-weight:600}
.mobile-nav .m-links li a i{color:var(--muted);font-size:.8125rem}
.mobile-nav .m-cta{margin-top:22px}

/* ============ 按钮 ============ */
.btn-brand,.btn-outline-brand,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:.9375rem;font-weight:600;
  border-radius:var(--radius-btn);
  padding:0 22px;height:48px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-sm-brand{height:42px;padding:0 18px;font-size:.875rem;border-radius:10px}
.btn-brand{background:var(--brand);color:#fff;box-shadow:0 8px 20px rgba(21,94,158,.24)}
.btn-brand:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px rgba(21,94,158,.32)}
.btn-brand:active{transform:translateY(0)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,107,53,.26)}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px)}
.btn-outline-brand{background:transparent;border-color:var(--brand);color:var(--brand)}
.btn-outline-brand:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand-dark)}
.btn-ghost{background:transparent;color:var(--brand);padding:0 6px;height:auto}
.btn-ghost .arw{transition:transform .2s ease}
.btn-ghost:hover .arw{transform:translateX(4px)}
.btn-ghost:hover{color:var(--brand-dark)}
.btn-on-dark{background:#fff;color:var(--brand-dark)}
.btn-on-dark:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px)}
.btn-outline-on-dark{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-outline-on-dark:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff}

.badge-soft{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--line);
  color:var(--ink);font-size:.8125rem;font-weight:600;
  padding:7px 14px;border-radius:999px;
}
.badge-soft i{color:var(--teal)}
.badge-on-dark{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:.8125rem;font-weight:600;
  padding:7px 14px;border-radius:999px;
}

/* ============ 分类 Hero 横幅 ============ */
.hero-banner{
  position:relative;
  padding:88px 0 76px;
  background-image:linear-gradient(115deg,rgba(14,74,122,.94) 0%,rgba(21,94,158,.90) 52%,rgba(15,39,64,.88) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  color:#fff;
  overflow:hidden;
}
.hero-banner::after{
  content:"";position:absolute;inset:auto -80px -120px auto;
  width:420px;height:420px;border-radius:50%;
  border:60px solid rgba(255,255,255,.06);
  pointer-events:none;
}
.hero-banner h1{
  color:#fff;
  font-size:clamp(2rem,4vw,3.15rem);
  margin:18px 0 18px;
  max-width:820px;
}
.hero-banner .lead{
  color:rgba(255,255,255,.86);
  font-size:1.0625rem;
  max-width:680px;
  margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:26px;
  margin-top:44px;padding-top:26px;
  border-top:1px solid rgba(255,255,255,.18);
}
.hero-meta div{min-width:130px}
.hero-meta strong{display:block;font-size:1.5rem;color:#fff;line-height:1.2}
.hero-meta span{font-size:.8125rem;color:rgba(255,255,255,.72)}

/* 面包屑 */
.crumb-bar{
  background:#fff;
  border-bottom:1px solid var(--line);
  padding:14px 0;
}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:.875rem;color:var(--muted)}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:#B9C6D4}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--brand)}
.crumb .current{color:var(--brand);font-weight:600}

/* ============ 分类简介 ============ */
.intro-grid{
  display:grid;grid-template-columns:1fr 1fr;
  gap:56px;align-items:center;
}
.intro-copy h2{font-size:clamp(1.5rem,3vw,2.125rem);margin-bottom:18px}
.intro-copy p{color:var(--muted);font-size:1.0625rem;margin-bottom:16px}
.intro-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.tag-pill{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-light);color:var(--brand-dark);
  font-size:.8125rem;font-weight:600;
  padding:8px 14px;border-radius:999px;
}
.tag-pill i{color:var(--accent)}
.intro-figure{position:relative}
.intro-figure img{
  width:100%;border-radius:var(--radius-img);
  box-shadow:var(--shadow-card);object-fit:cover;
}
.intro-float{
  position:absolute;left:-18px;bottom:-22px;
  background:#fff;border:1px solid var(--line);
  border-radius:16px;box-shadow:var(--shadow-hover);
  padding:18px 22px;min-width:186px;
}
.intro-float strong{display:block;font-size:1.375rem;color:var(--brand);line-height:1.2}
.intro-float span{font-size:.8125rem;color:var(--muted)}

/* ============ 卡片 ============ */
.card-grid-2{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.card-soft{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:30px 28px;
  height:100%;
  display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card-soft:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#CFE0EF}
.card-icon{
  width:48px;height:48px;border-radius:14px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand);
  font-size:1.15rem;margin-bottom:18px;
}
.card-icon.alt{background:#FFF1EA;color:var(--accent)}
.card-icon.teal{background:#E4F7F4;color:var(--teal)}
.card-soft h3{font-size:1.25rem;margin-bottom:12px}
.card-soft .card-desc{color:var(--muted);font-size:.9375rem;margin-bottom:18px}
.card-points{margin-bottom:22px}
.card-points li{
  position:relative;
  padding-left:24px;margin-bottom:9px;
  font-size:.9375rem;color:var(--ink);
}
.card-points li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:1px;
  font-size:.75rem;color:var(--teal);
}
.card-foot{margin-top:auto}

/* ============ 数据条 ============ */
.stats-band{
  background:var(--brand-deep);
  color:#fff;
  padding:56px 0;
  position:relative;
  overflow:hidden;
}
.stats-band::before{
  content:"";position:absolute;left:-60px;top:-60px;
  width:280px;height:280px;border-radius:50%;
  border:44px solid rgba(255,255,255,.05);
}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;position:relative;
}
.stat-item{
  padding-right:20px;
  border-right:1px solid rgba(255,255,255,.14);
}
.stat-item:last-child{border-right:0;padding-right:0}
.stat-item strong{
  display:block;font-size:clamp(1.75rem,3vw,2.375rem);
  line-height:1.15;color:#fff;margin-bottom:8px;
}
.stat-item strong em{font-style:normal;color:var(--teal);font-size:.5em;margin-left:4px}
.stat-item span{font-size:.875rem;color:rgba(255,255,255,.72)}

/* ============ 场景双列 list ============ */
.scene-wrap{
  display:grid;grid-template-columns:0.95fr 1.05fr;
  gap:48px;align-items:center;
}
.scene-list{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:18px;
}
.scene-item{
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:20px 20px 18px;
  transition:transform .22s ease,box-shadow .22s ease;
}
.scene-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-card)}
.scene-item i{color:var(--accent);font-size:1.05rem;margin-bottom:10px;display:block}
.scene-item h4{font-size:1.125rem;margin-bottom:8px}
.scene-item p{font-size:.875rem;color:var(--muted)}
.scene-figure img{
  width:100%;border-radius:var(--radius-img);
  box-shadow:var(--shadow-card);object-fit:cover;
}

/* ============ 训练流程 ============ */
.steps-grid{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:22px;
}
.step-card{
  position:relative;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px 24px;
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,box-shadow .25s ease;
}
.step-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:var(--brand);color:#fff;font-weight:700;font-size:.9375rem;
  margin-bottom:16px;
}
.step-card h3{font-size:1.125rem;margin-bottom:10px}
.step-card p{font-size:.9375rem;color:var(--muted)}

/* ============ FAQ ============ */
.faq-accordion .accordion-item{
  background:#fff;border:1px solid var(--line);
  border-radius:14px;margin-bottom:14px;overflow:hidden;
}
.faq-accordion .accordion-header{margin:0}
.faq-accordion .accordion-button{
  background:#fff;border:0;box-shadow:none;
  font-size:1.0625rem;font-weight:600;color:var(--ink);
  padding:22px 24px;
  display:flex;align-items:center;gap:16px;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand);
  background:var(--brand-light);
}
.faq-accordion .accordion-button:focus{box-shadow:none;outline:2px solid var(--brand);outline-offset:-4px}
.faq-accordion .accordion-button::after{display:none}
.faq-accordion .accordion-button::before{
  content:"\2b";
  font-family:"Font Awesome 6 Free";font-weight:900;
  margin-left:auto;order:2;
  width:30px;height:30px;border-radius:9px;
  display:inline-flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);
  color:var(--brand);font-size:.75rem;flex-shrink:0;
  transition:transform .25s ease,background .25s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::before{
  content:"\f068";background:var(--brand);color:#fff;border-color:var(--brand);
}
.faq-accordion .accordion-body{
  padding:6px 24px 24px;color:var(--muted);font-size:.9375rem;line-height:1.85;
}

/* ============ CTA 区块 ============ */
.cta-band{
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-dark) 100%);
  border-radius:24px;
  padding:52px 48px;
  color:#fff;
  display:flex;align-items:center;justify-content:space-between;
  gap:36px;flex-wrap:wrap;
  box-shadow:0 20px 44px rgba(14,74,122,.24);
}
.cta-band h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2rem);margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.84);max-width:620px;font-size:.9875rem}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ============ 隐私说明 ============ */
.privacy-strip{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 30px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:18px;
}
.privacy-strip p{margin:0;font-size:.875rem;color:var(--muted);max-width:760px}
.privacy-badges{display:flex;flex-wrap:wrap;gap:10px}
.privacy-badges span{
  display:inline-flex;align-items:center;gap:6px;
  font-size:.8125rem;font-weight:600;color:var(--brand-dark);
  background:var(--brand-light);padding:7px 13px;border-radius:999px;
}
.privacy-badges i{color:var(--teal)}

/* ============ 表单弹层 ============ */
.form-modal .modal-content{
  border:0;border-radius:20px;overflow:hidden;
  box-shadow:0 30px 70px rgba(16,32,51,.24);
}
.form-modal .modal-header{
  border-bottom:1px solid var(--line);
  padding:22px 26px;background:var(--brand-light);
}
.form-modal .modal-title{font-size:1.125rem;font-weight:700;color:var(--brand-dark)}
.form-modal .modal-body{padding:26px}
.form-modal .form-label{font-size:.875rem;font-weight:600;margin-bottom:7px;color:var(--ink)}
.form-modal .form-control,.form-modal .form-select{
  border-radius:var(--radius-input);
  border:1px solid var(--line);
  padding:12px 14px;font-size:.9375rem;
  background:#fff;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.form-modal .form-control:focus,.form-modal .form-select:focus{
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(21,94,158,.14);
}
.form-modal .form-check-input:checked{background-color:var(--brand);border-color:var(--brand)}
.form-modal .form-check-label{font-size:.875rem;color:var(--muted)}
.form-modal .btn-brand{width:100%;height:48px}
.form-hint{font-size:.8125rem;color:var(--muted);margin-top:12px}

/* ============ 页脚 ============ */
.footer-main{
  background:var(--brand-deep);
  color:#fff;padding:72px 0 26px;margin-top:0;
}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;padding-bottom:44px;
  border-bottom:1px solid rgba(255,255,255,.14);
}
.footer-brand{
  display:flex;align-items:center;gap:12px;
  font-size:1.25rem;font-weight:700;margin-bottom:16px;
}
.footer-brand .brand-mark{background:linear-gradient(135deg,var(--brand) 0%,var(--teal) 100%)}
.footer-main p{color:rgba(255,255,255,.72);font-size:.9375rem;max-width:420px}
.footer-main h4{color:#fff;font-size:1rem;margin-bottom:18px}
.footer-links li,.footer-contact li{margin-bottom:11px}
.footer-links a{color:rgba(255,255,255,.74);font-size:.9375rem}
.footer-links a:hover{color:#fff}
.footer-contact li{
  display:flex;align-items:flex-start;gap:10px;
  color:rgba(255,255,255,.74);font-size:.9375rem;
}
.footer-contact i{color:var(--teal);margin-top:5px}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding-top:24px;font-size:.8125rem;color:rgba(255,255,255,.6);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .nav-links li a{padding:10px 10px;font-size:.875rem}
  .nav-search input{width:104px}
}
@media (max-width:991px){
  .nav-links{display:none}
  .nav-search{display:none}
  .nav-toggle{display:inline-flex}
  .site-nav{gap:16px}
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .hero-banner{padding:64px 0 56px}
  .intro-grid{grid-template-columns:1fr;gap:60px}
  .intro-float{left:16px;bottom:-24px}
  .scene-wrap{grid-template-columns:1fr;gap:36px}
  .steps-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .stat-item{border-right:0;padding-right:0}
  .cta-band{padding:40px 30px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  .container-site{padding:0 16px}
  .section{padding:56px 0}
  .card-grid-2{grid-template-columns:1fr}
  .scene-list{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr;gap:22px}
  .hero-meta{gap:20px;margin-top:34px}
  .hero-meta div{min-width:calc(50% - 10px)}
  .hero-actions{gap:12px}
  .hero-actions .btn-brand,.hero-actions .btn-outline-brand{width:100%}
  .cta-band{padding:32px 22px;border-radius:18px}
  .cta-actions{width:100%}
  .cta-actions .btn-brand,.cta-actions .btn-on-dark{width:100%}
  .privacy-strip{padding:22px}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .brand-text{font-size:1.0625rem}
  .brand-text small{display:none}
  .hero-banner h1{font-size:1.75rem}
  .card-soft{padding:24px 20px}
  .step-card{padding:22px 20px}
  .faq-accordion .accordion-button{padding:18px;font-size:1rem}
  .faq-accordion .accordion-body{padding:2px 18px 20px}
}

/* roulang page: category3 */
:root{
  --brand-1:#155E9E;
  --brand-1-dark:#0E4A7A;
  --brand-1-soft:#E8F1F9;
  --accent:#FF6B35;
  --accent-dark:#E85A28;
  --teal:#16B8A6;
  --bg:#F5F8FC;
  --surface:#FFFFFF;
  --ink:#102033;
  --ink-2:#5B6B7F;
  --line:#E3EAF2;
  --success:#1F9D6A;
  --warn:#D9822B;
  --radius-card:16px;
  --radius-btn:12px;
  --radius-img:18px;
  --radius-input:10px;
  --shadow-1:0 10px 30px rgba(16,32,51,.08);
  --shadow-2:0 16px 40px rgba(16,32,51,.12);
  --shadow-3:0 24px 60px rgba(14,74,122,.16);
  --font-cn:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;

  --bs-primary:#155E9E;
  --bs-primary-rgb:21,94,158;
  --bs-body-bg:#F5F8FC;
  --bs-body-color:#102033;
  --bs-border-color:#E3EAF2;
  --bs-border-radius:16px;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-link-color:#155E9E;
  --bs-link-hover-color:#0E4A7A;
  --bs-body-font-size:16px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand-1);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-1-dark);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;line-height:1.3;color:var(--ink);letter-spacing:-.01em;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand-1);outline-offset:3px;border-radius:6px;}

/* 容器 */
.container-site{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* 通用区块 */
.section{padding:96px 0;}
.section-sm{padding:64px 0;}
.section-soft{background:var(--bg);}
.section-white{background:var(--surface);}
.section-head{max-width:760px;margin-bottom:56px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-head h2{font-size:clamp(1.5rem,3vw,2.25rem);margin-bottom:16px;}
.section-head p{color:var(--ink-2);font-size:1.0625rem;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.875rem;font-weight:600;letter-spacing:.08em;
  color:var(--brand-1);text-transform:uppercase;
  background:var(--brand-1-soft);
  padding:6px 14px;border-radius:999px;margin-bottom:18px;
}
.eyebrow i{font-size:.75rem;}

/* 按钮 */
.btn-brand,.btn-outline-brand,.btn-ghost,.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  min-height:48px;padding:0 26px;
  border-radius:var(--radius-btn);
  font-weight:600;font-size:1rem;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn-brand{background:var(--brand-1);color:#fff;box-shadow:0 8px 20px rgba(21,94,158,.22);}
.btn-brand:hover{background:var(--brand-1-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px rgba(21,94,158,.28);}
.btn-brand:active{transform:translateY(0);}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(255,107,53,.24);}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 28px rgba(255,107,53,.3);}
.btn-outline-brand{background:transparent;color:var(--brand-1);border-color:var(--brand-1);}
.btn-outline-brand:hover{background:var(--brand-1-soft);color:var(--brand-1-dark);border-color:var(--brand-1-dark);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--brand-1);padding:0 6px;min-height:44px;}
.btn-ghost i{transition:transform .2s ease;}
.btn-ghost:hover i{transform:translateX(4px);}
.btn-sm-brand{min-height:40px;padding:0 18px;font-size:.9375rem;border-radius:10px;}
.btn-block{width:100%;}

/* 标签 */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  font-size:.8125rem;font-weight:600;
  background:var(--brand-1-soft);color:var(--brand-1-dark);
  border:1px solid rgba(21,94,158,.14);
}
.badge-accent{background:rgba(255,107,53,.1);color:var(--accent-dark);border-color:rgba(255,107,53,.18);}
.badge-teal{background:rgba(22,184,166,.1);color:#0E8A7C;border-color:rgba(22,184,166,.2);}

/* 导航 */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(10px);
  -webkit-backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 6px 24px rgba(16,32,51,.08);}
.site-nav{display:flex;align-items:center;gap:28px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:42px;height:42px;border-radius:13px;
  background:linear-gradient(135deg,var(--brand-1),#2C81C6);
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:1.125rem;box-shadow:0 6px 16px rgba(21,94,158,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-weight:700;font-size:1.1875rem;letter-spacing:-.01em;}
.brand-text small{font-size:.6875rem;font-weight:500;color:var(--ink-2);letter-spacing:.02em;margin-top:2px;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;}
.nav-links a{
  display:inline-block;padding:10px 14px;border-radius:10px;
  font-size:.9375rem;font-weight:500;color:var(--ink-2);
  transition:background-color .2s ease,color .2s ease;
}
.nav-links a:hover{background:var(--brand-1-soft);color:var(--brand-1-dark);}
.nav-links a.active{color:var(--brand-1);background:var(--brand-1-soft);font-weight:600;}
.nav-side{display:flex;align-items:center;gap:12px;margin-left:auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:#F1F5FA;border:1px solid var(--line);
  border-radius:11px;padding:0 12px;height:42px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.nav-search:focus-within{background:#fff;border-color:var(--brand-1);box-shadow:0 0 0 3px rgba(21,94,158,.12);}
.nav-search i{color:var(--ink-2);font-size:.8125rem;}
.nav-search input{
  border:0;background:transparent;outline:none;
  width:150px;height:100%;font-size:.9375rem;color:var(--ink);
}
.nav-search input::placeholder{color:#93A2B4;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:11px;
  border:1px solid var(--line);background:#fff;color:var(--ink);
  align-items:center;justify-content:center;font-size:1.125rem;cursor:pointer;
  transition:background-color .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:var(--brand-1-soft);border-color:rgba(21,94,158,.24);color:var(--brand-1);}

/* 移动端抽屉 */
.offcanvas-mobile{background:#fff;}
.offcanvas-mobile .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.offcanvas-mobile .offcanvas-body{padding:16px 20px 28px;}
.mobile-links{display:flex;flex-direction:column;gap:4px;margin-bottom:20px;}
.mobile-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 14px;border-radius:12px;
  font-size:1rem;font-weight:500;color:var(--ink);
  border:1px solid transparent;
}
.mobile-links a:hover,.mobile-links a.active{background:var(--brand-1-soft);color:var(--brand-1-dark);border-color:rgba(21,94,158,.14);}
.mobile-links a i{font-size:.8125rem;color:var(--ink-2);}

/* 内页 Banner */
.page-hero{
  position:relative;overflow:hidden;
  background:
    linear-gradient(100deg,rgba(14,74,122,.94) 0%,rgba(21,94,158,.88) 46%,rgba(21,94,158,.55) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  color:#fff;
  padding:76px 0 68px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.16) 1px,transparent 1px);
  background-size:26px 26px;opacity:.5;pointer-events:none;
}
.page-hero .container-site{position:relative;z-index:2;}
.page-hero h1{
  color:#fff;font-size:clamp(1.9rem,3.6vw,2.9rem);
  max-width:900px;margin-bottom:18px;
}
.page-hero p.lead{
  color:rgba(255,255,255,.86);font-size:1.0625rem;max-width:760px;margin-bottom:26px;
}
.hero-chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.hero-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);
  font-size:.875rem;font-weight:500;color:#fff;
  backdrop-filter:blur(4px);
}
.hero-chip i{color:#8FE3D8;}
.breadcrumb-line{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:.875rem;color:rgba(255,255,255,.72);margin-bottom:20px;
}
.breadcrumb-line a{color:rgba(255,255,255,.86);}
.breadcrumb-line a:hover{color:#fff;text-decoration:underline;}
.breadcrumb-line span.sep{opacity:.55;}

/* 简介区 */
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.intro-copy h2{font-size:clamp(1.5rem,2.6vw,2rem);margin-bottom:20px;}
.intro-copy p{color:var(--ink-2);margin-bottom:16px;}
.intro-list{display:grid;gap:14px;margin-top:26px;}
.intro-list li{display:flex;gap:12px;align-items:flex-start;font-size:.9688rem;color:var(--ink);}
.intro-list i{color:var(--teal);margin-top:5px;font-size:.9375rem;}
.intro-media{position:relative;}
.intro-media img{
  width:100%;border-radius:var(--radius-img);
  box-shadow:var(--shadow-2);object-fit:cover;aspect-ratio:4/3;
}
.intro-media .float-card{
  position:absolute;left:-18px;bottom:-22px;
  background:#fff;border-radius:14px;padding:16px 20px;
  box-shadow:var(--shadow-3);border:1px solid var(--line);
  display:flex;align-items:center;gap:14px;max-width:280px;
}
.float-card .num{font-size:1.5rem;font-weight:700;color:var(--brand-1);line-height:1;}
.float-card .txt{font-size:.8125rem;color:var(--ink-2);line-height:1.5;}

/* 横向滚动阶梯卡 */
.rail-wrap{position:relative;}
.rail{
  display:flex;align-items:flex-start;gap:24px;
  overflow-x:auto;overflow-y:hidden;
  padding:6px 4px 34px;
  scroll-snap-type:x mandatory;
  -webkit-overflow-scrolling:touch;
  scrollbar-width:thin;
}
.rail::-webkit-scrollbar{height:8px;}
.rail::-webkit-scrollbar-track{background:#E9F0F7;border-radius:99px;}
.rail::-webkit-scrollbar-thumb{background:#B9CCDD;border-radius:99px;}
.rail::-webkit-scrollbar-thumb:hover{background:var(--brand-1);}
.rail-card{
  flex:0 0 clamp(276px,29%,372px);
  scroll-snap-align:start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 26px 26px;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.rail-card:nth-child(even){margin-top:30px;}
.rail-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-2);border-color:rgba(21,94,158,.22);}
.rail-card:nth-child(even):hover{transform:translateY(24px);}
.rail-index{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;
  background:var(--brand-1-soft);color:var(--brand-1);
  font-weight:700;font-size:.9375rem;margin-bottom:18px;
}
.rail-card h3{font-size:1.1875rem;margin-bottom:12px;}
.rail-card > p{color:var(--ink-2);font-size:.9375rem;margin-bottom:18px;}
.rail-points{display:grid;gap:9px;margin-bottom:20px;}
.rail-points li{display:flex;gap:9px;font-size:.875rem;color:var(--ink-2);line-height:1.6;}
.rail-points i{color:var(--accent);font-size:.75rem;margin-top:6px;}
.rail-cta{font-size:.9375rem;font-weight:600;display:inline-flex;align-items:center;gap:8px;}
.rail-cta i{transition:transform .2s ease;}
.rail-cta:hover i{transform:translateX(4px);}
.rail-hint{display:flex;align-items:center;gap:8px;font-size:.875rem;color:var(--ink-2);margin-top:6px;}

/* 数据条 */
.stats-band{
  background:linear-gradient(180deg,#0E4A7A 0%,#155E9E 100%);
  border-radius:24px;padding:52px 44px;color:#fff;position:relative;overflow:hidden;
}
.stats-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:48px 48px;opacity:.55;
}
.stats-grid{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(4,1fr);gap:32px;
}
.stat-item{border-left:1px solid rgba(255,255,255,.2);padding-left:22px;}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-num{font-size:clamp(1.75rem,3vw,2.5rem);font-weight:700;color:#fff;line-height:1.1;margin-bottom:10px;}
.stat-num span{font-size:1.125rem;font-weight:600;margin-left:2px;color:#9FE7DD;}
.stat-label{font-size:1rem;font-weight:600;margin-bottom:6px;color:#fff;}
.stat-desc{font-size:.875rem;color:rgba(255,255,255,.74);line-height:1.6;}

/* 优势 */
.adv-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.adv-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:30px 28px;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.adv-card:hover{transform:translateY(-5px);box-shadow:var(--shadow-2);}
.adv-card .ico{
  width:50px;height:50px;border-radius:14px;
  background:var(--brand-1-soft);color:var(--brand-1);
  display:inline-flex;align-items:center;justify-content:center;font-size:1.1875rem;margin-bottom:20px;
}
.adv-card h3{font-size:1.125rem;margin-bottom:12px;}
.adv-card p{color:var(--ink-2);font-size:.9375rem;}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.flow-step{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 24px;box-shadow:var(--shadow-1);
}
.flow-step .step-no{
  display:inline-block;font-size:.8125rem;font-weight:700;letter-spacing:.08em;
  color:var(--accent-dark);background:rgba(255,107,53,.1);
  border-radius:999px;padding:4px 12px;margin-bottom:16px;
}
.flow-step h3{font-size:1.0625rem;margin-bottom:10px;}
.flow-step p{font-size:.9063rem;color:var(--ink-2);}

/* FAQ */
.faq-accordion .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:14px !important;
  margin-bottom:14px;overflow:hidden;box-shadow:0 4px 14px rgba(16,32,51,.04);
}
.faq-accordion .accordion-button{
  background:#fff;color:var(--ink);font-weight:600;font-size:1.0313rem;
  padding:22px 26px;border:0;box-shadow:none;gap:16px;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand-1);background:var(--brand-1-soft);}
.faq-accordion .accordion-button:focus{box-shadow:none;border:0;}
.faq-accordion .accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  color:var(--brand-1);font-size:.875rem;width:auto;height:auto;
  display:flex;align-items:center;justify-content:center;
  width:30px;height:30px;border-radius:9px;background-color:var(--brand-1-soft);
  transition:transform .25s ease,background-color .25s ease;margin-left:auto;
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  content:"\f068";transform:rotate(180deg);background-color:rgba(21,94,158,.16);
}
.faq-accordion .accordion-body{
  padding:0 26px 24px;color:var(--ink-2);font-size:.9688rem;line-height:1.85;
}

/* CTA 区 */
.cta-band{
  background:linear-gradient(115deg,#0E4A7A 0%,#155E9E 58%,#1C6FB0 100%);
  border-radius:26px;padding:58px 52px;color:#fff;
  display:grid;grid-template-columns:1.35fr .65fr;gap:40px;align-items:center;
  position:relative;overflow:hidden;box-shadow:var(--shadow-3);
}
.cta-band::after{
  content:"";position:absolute;right:-70px;top:-70px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,53,.42),transparent 68%);
}
.cta-band h2{color:#fff;font-size:clamp(1.5rem,2.6vw,2rem);margin-bottom:14px;position:relative;z-index:2;}
.cta-band p{color:rgba(255,255,255,.85);position:relative;z-index:2;max-width:640px;}
.cta-actions{position:relative;z-index:2;display:flex;flex-direction:column;gap:14px;}
.cta-actions .btn-brand{background:#fff;color:var(--brand-1-dark);box-shadow:0 10px 26px rgba(0,0,0,.16);}
.cta-actions .btn-brand:hover{background:#F0F6FC;color:var(--brand-1-dark);}
.cta-actions .btn-outline-brand{color:#fff;border-color:rgba(255,255,255,.5);}
.cta-actions .btn-outline-brand:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}

/* 隐私说明 */
.privacy-strip{
  background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:26px 30px;display:flex;flex-wrap:wrap;gap:22px;align-items:center;justify-content:space-between;
  box-shadow:0 6px 18px rgba(16,32,51,.05);
}
.privacy-strip .p-left{display:flex;gap:16px;align-items:flex-start;max-width:720px;}
.privacy-strip .p-left i{color:var(--success);font-size:1.25rem;margin-top:3px;}
.privacy-strip h4{font-size:1rem;margin-bottom:6px;}
.privacy-strip p{font-size:.9063rem;color:var(--ink-2);}
.trust-badges{display:flex;flex-wrap:wrap;gap:10px;}

/* 页脚 */
.footer-main{background:#0F2740;color:#C9D6E4;padding:72px 0 30px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:44px;padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand{display:flex;align-items:center;gap:12px;color:#fff;font-weight:700;font-size:1.1875rem;margin-bottom:18px;}
.footer-brand .brand-mark{box-shadow:none;}
.footer-main p{font-size:.9375rem;line-height:1.8;color:#A9BDD2;}
.footer-main h4{color:#fff;font-size:1rem;margin-bottom:18px;font-weight:600;}
.footer-links,.footer-contact{display:grid;gap:11px;}
.footer-links a{color:#A9BDD2;font-size:.9375rem;}
.footer-links a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;font-size:.9375rem;color:#A9BDD2;align-items:flex-start;}
.footer-contact i{color:var(--teal);margin-top:5px;font-size:.875rem;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding-top:24px;font-size:.8438rem;color:#8FA6BD;
}

/* 弹层表单 */
.form-modal .modal-content{
  border:0;border-radius:20px;overflow:hidden;box-shadow:var(--shadow-3);
}
.form-modal .modal-header{
  background:linear-gradient(120deg,#0E4A7A,#155E9E);color:#fff;border:0;padding:24px 28px;
}
.form-modal .modal-title{font-size:1.125rem;color:#fff;font-weight:600;}
.form-modal .btn-close{filter:invert(1) grayscale(1);opacity:.85;}
.form-modal .modal-body{padding:28px;background:#fff;}
.form-modal .form-label{font-size:.9063rem;font-weight:600;color:var(--ink);margin-bottom:7px;}
.form-modal .form-control,.form-modal .form-select{
  border-radius:var(--radius-input);border:1px solid var(--line);
  padding:12px 14px;font-size:.9375rem;background:#F8FAFD;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.form-modal .form-control:focus,.form-modal .form-select:focus{
  background:#fff;border-color:var(--brand-1);box-shadow:0 0 0 3px rgba(21,94,158,.12);
}
.form-modal .form-check-label{font-size:.875rem;color:var(--ink-2);}
.form-modal .form-check-input:checked{background-color:var(--brand-1);border-color:var(--brand-1);}
.form-note{font-size:.8125rem;color:var(--ink-2);margin-top:12px;line-height:1.7;}

/* 响应式 */
@media (max-width:1199.98px){
  .nav-search input{width:112px;}
  .nav-links a{padding:10px 11px;font-size:.9063rem;}
  .adv-grid{gap:20px;}
  .stats-band{padding:44px 34px;}
  .stats-grid{gap:24px;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-search{display:none;}
  .site-nav{height:68px;gap:16px;}
  .intro-grid{grid-template-columns:1fr;gap:44px;}
  .intro-media .float-card{left:0;bottom:-18px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:28px;}
  .stat-item:nth-child(3){border-left:0;padding-left:0;}
  .adv-grid{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:44px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .page-hero{padding:60px 0 54px;}
  .rail-card:nth-child(even){margin-top:0;}
}
@media (max-width:767.98px){
  .container-site{padding-left:18px;padding-right:18px;}
  .section{padding:56px 0;}
  .section-sm{padding:48px 0;}
  .section-head{margin-bottom:36px;}
  .page-hero{padding:48px 0 44px;}
  .page-hero h1{font-size:1.75rem;}
  .stats-band{padding:36px 24px;border-radius:20px;}
  .stats-grid{grid-template-columns:1fr;gap:22px;}
  .stat-item{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.18);padding-top:20px;}
  .stat-item:first-child{border-top:0;padding-top:0;}
  .adv-grid{grid-template-columns:1fr;}
  .flow{grid-template-columns:1fr;}
  .rail-card{flex:0 0 84%;}
  .cta-band{padding:36px 24px;border-radius:20px;}
  .privacy-strip{padding:22px 20px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-main{padding:56px 0 26px;}
  .btn-brand,.btn-outline-brand,.btn-accent{width:100%;}
  .cta-actions .btn-brand,.cta-actions .btn-outline-brand{width:100%;}
  .nav-side .btn-sm-brand{display:none !important;}
}
@media (max-width:575.98px){
  .page-hero h1{font-size:1.5625rem;}
  .brand-text{font-size:1.0625rem;}
  .brand-text small{display:none;}
  .brand-mark{width:38px;height:38px;font-size:1rem;}
  .rail-card{flex:0 0 88%;padding:24px 20px;}
  .intro-media .float-card{position:static;margin-top:16px;max-width:none;}
}

/* roulang page: category4 */
:root{
  --brand:#155E9E;
  --brand-dark:#0E4A7A;
  --brand-light:#E8F1F9;
  --accent:#FF6B35;
  --accent-dark:#E85A28;
  --teal:#16B8A6;
  --bg:#F5F8FC;
  --card:#FFFFFF;
  --ink:#102033;
  --muted:#5B6B7F;
  --line:#E3EAF2;
  --ok:#1F9D6A;
  --warn:#D9822B;
  --ink-deep:#0F2740;
  --radius-card:16px;
  --radius-btn:11px;
  --radius-img:18px;
  --shadow-sm:0 4px 14px rgba(16,32,51,.06);
  --shadow:0 10px 30px rgba(16,32,51,.08);
  --shadow-hover:0 16px 40px rgba(16,32,51,.12);
  --bs-primary:#155E9E;
  --bs-body-bg:#F5F8FC;
  --bs-body-color:#102033;
  --bs-border-radius:12px;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-link-color:#155E9E;
  --bs-link-hover-color:#0E4A7A;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
button,input,select,textarea{font-family:inherit;font-size:inherit}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--ink);letter-spacing:-.01em}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}

.container-site{width:100%;max-width:1240px;margin:0 auto;padding:0 24px}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(10px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:0 8px 26px rgba(16,32,51,.08)}
.site-nav{display:flex;align-items:center;gap:22px;min-height:68px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand),var(--brand-dark));
  color:#fff;font-size:17px;box-shadow:0 6px 16px rgba(21,94,158,.28);
}
.brand-text{display:flex;flex-direction:column;font-weight:700;font-size:1.12rem;color:var(--ink);line-height:1.1}
.brand-text small{font-size:.66rem;font-weight:500;color:var(--muted);letter-spacing:.04em;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto}
.nav-links a{
  display:inline-block;padding:8px 12px;border-radius:9px;
  font-size:.94rem;font-weight:500;color:#33475e;white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.nav-links a:hover{background:var(--brand-light);color:var(--brand-dark)}
.nav-links a.active{background:var(--brand-light);color:var(--brand-dark);font-weight:600}
.nav-side{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:#F1F5FA;border:1px solid var(--line);border-radius:10px;
  padding:7px 12px;color:var(--muted);transition:border-color .2s ease,background .2s ease;
}
.nav-search:focus-within{border-color:var(--brand);background:#fff}
.nav-search input{border:0;background:transparent;outline:none;width:132px;font-size:.9rem;color:var(--ink)}
.nav-search input::placeholder{color:#95A4B6}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:11px;
  background:#fff;color:var(--ink);font-size:1.05rem;
}
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);color:#fff;border:1px solid var(--brand);
  border-radius:var(--radius-btn);font-weight:600;padding:12px 22px;
  min-height:48px;transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
  box-shadow:0 8px 20px rgba(21,94,158,.2);cursor:pointer;
}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(14,74,122,.28)}
.btn-sm-brand{padding:9px 18px;min-height:42px;font-size:.92rem}
.btn-outline-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--brand);border:1.5px solid var(--brand);
  border-radius:var(--radius-btn);font-weight:600;padding:12px 22px;min-height:48px;
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-outline-brand:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px)}
.btn-ghost-brand{
  display:inline-flex;align-items:center;gap:8px;color:var(--brand);
  font-weight:600;padding:12px 4px;min-height:48px;
}
.btn-ghost-brand i{transition:transform .2s ease}
.btn-ghost-brand:hover i{transform:translateX(4px)}
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-light);color:var(--brand-dark);
  border-radius:999px;padding:5px 13px;font-size:.8rem;font-weight:600;
}
.badge-accent{background:rgba(255,107,53,.12);color:var(--accent-dark)}
.badge-teal{background:rgba(22,184,166,.13);color:#0E8C7E}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.82rem;font-weight:700;letter-spacing:.08em;
  color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px}
.section-head h2{font-size:clamp(1.5rem,3vw,2.25rem);margin-bottom:14px}
.section-head p{color:var(--muted);font-size:1.02rem;line-height:1.85}
.bg-white-block{background:#fff}
.bg-soft-block{background:linear-gradient(180deg,#F7FAFD 0%,#EEF4FA 100%)}

/* ---------- 内页横幅 ---------- */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:linear-gradient(100deg,rgba(10,42,70,.92) 0%,rgba(14,74,122,.82) 45%,rgba(21,94,158,.55) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  padding:84px 0 76px;
}
.page-hero::after{
  content:"";position:absolute;inset:auto -80px -120px auto;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(22,184,166,.35),transparent 68%);
}
.page-hero .container-site{position:relative;z-index:2}
.page-hero h1{color:#fff;font-size:clamp(1.9rem,3.6vw,3rem);margin:16px 0 18px;max-width:900px}
.page-hero p{color:rgba(255,255,255,.86);max-width:720px;font-size:1.03rem}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-tags span{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  color:#fff;border-radius:999px;padding:7px 15px;font-size:.86rem;font-weight:500;
}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--line)}
.breadcrumb-site{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  padding:14px 0;font-size:.88rem;color:var(--muted);
}
.breadcrumb-site a{color:var(--muted)}
.breadcrumb-site a:hover{color:var(--brand)}
.breadcrumb-site .sep{color:#C3D2E2}
.breadcrumb-site .current{color:var(--ink);font-weight:600}

/* ---------- 简介 + 大图 ---------- */
.intro-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:52px;align-items:center}
.intro-copy h2{font-size:clamp(1.5rem,2.8vw,2.1rem);margin-bottom:18px}
.intro-copy p{color:var(--muted);margin-bottom:16px}
.intro-media{position:relative}
.intro-media img{
  width:100%;border-radius:var(--radius-img);box-shadow:var(--shadow);
  aspect-ratio:4/3;object-fit:cover;
}
.media-chip{
  position:absolute;left:-18px;bottom:26px;background:#fff;border-radius:14px;
  box-shadow:var(--shadow-hover);padding:14px 18px;display:flex;align-items:center;gap:12px;
  border:1px solid var(--line);
}
.media-chip i{color:var(--teal);font-size:1.3rem}
.media-chip b{display:block;font-size:1.15rem;color:var(--ink);line-height:1.2}
.media-chip span{font-size:.8rem;color:var(--muted)}

/* ---------- 双列条目列表 ---------- */
.dual-grid{display:grid;grid-template-columns:1fr 1fr;gap:26px}
.entry-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 26px 22px;box-shadow:var(--shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  display:flex;flex-direction:column;gap:12px;height:100%;
}
.entry-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:#CFE0EF}
.entry-head{display:flex;align-items:center;gap:14px}
.entry-ico{
  width:46px;height:46px;border-radius:13px;flex:0 0 auto;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-light);color:var(--brand);font-size:1.15rem;
}
.entry-card h3{font-size:1.16rem;margin:0}
.entry-card p{color:var(--muted);font-size:.95rem}
.entry-points{display:flex;flex-wrap:wrap;gap:8px;margin-top:4px}
.entry-points span{
  font-size:.8rem;color:#3D5771;background:#F2F7FC;border:1px solid var(--line);
  border-radius:8px;padding:4px 10px;
}
.entry-foot{margin-top:auto;padding-top:8px}

/* ---------- 优势数据条 ---------- */
.stat-strip{
  background:#fff;border:1px solid var(--line);border-radius:20px;
  box-shadow:var(--shadow);padding:38px 30px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.stat-item{position:relative;padding-right:24px}
.stat-item:not(:last-child)::after{
  content:"";position:absolute;right:0;top:8px;bottom:8px;width:1px;background:var(--line);
}
.stat-item b{display:block;font-size:clamp(1.8rem,3.4vw,2.4rem);color:var(--brand);line-height:1.1;font-weight:700}
.stat-item strong{display:block;margin:8px 0 6px;font-size:.98rem;color:var(--ink)}
.stat-item span{font-size:.86rem;color:var(--muted);line-height:1.7}
.stat-item .teal{color:var(--teal)}

/* ---------- 流程 ---------- */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px}
.flow-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 22px;box-shadow:var(--shadow-sm);position:relative;
  transition:transform .25s ease,box-shadow .25s ease;
}
.flow-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.flow-num{
  font-size:.82rem;font-weight:700;color:var(--accent-dark);
  background:rgba(255,107,53,.12);border-radius:8px;padding:3px 10px;display:inline-block;margin-bottom:14px;
}
.flow-card h3{font-size:1.05rem;margin-bottom:8px}
.flow-card p{font-size:.9rem;color:var(--muted)}

/* ---------- 适用场景 ---------- */
.scene-list{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.scene-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-sm);transition:transform .25s ease,box-shadow .25s ease;
}
.scene-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover)}
.scene-item i{font-size:1.35rem;color:var(--brand);margin-bottom:14px;display:block}
.scene-item h3{font-size:1.06rem;margin-bottom:8px}
.scene-item p{font-size:.92rem;color:var(--muted)}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:12px;
  margin-bottom:14px;overflow:hidden;box-shadow:var(--shadow-sm);
}
.faq-accordion .accordion-button{
  font-weight:600;font-size:1.02rem;color:var(--ink);background:#fff;
  padding:20px 22px;box-shadow:none;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand-dark);background:var(--brand-light)}
.faq-accordion .accordion-button:focus{box-shadow:none;border-color:transparent}
.faq-accordion .accordion-button::after{
  background-image:none;content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:.85rem;color:var(--brand);width:auto;height:auto;transition:transform .25s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--brand-dark)}
.faq-accordion .accordion-body{color:var(--muted);font-size:.96rem;padding:4px 22px 22px}

/* ---------- CTA ---------- */
.cta-panel{
  background:linear-gradient(120deg,#0E4A7A 0%,#155E9E 58%,#1C74BE 100%);
  border-radius:24px;color:#fff;padding:52px 46px;position:relative;overflow:hidden;
  box-shadow:0 24px 50px rgba(14,74,122,.25);
}
.cta-panel::after{
  content:"";position:absolute;right:-70px;top:-70px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,107,53,.45),transparent 66%);
}
.cta-panel h2{color:#fff;font-size:clamp(1.5rem,3vw,2.1rem);margin-bottom:14px;position:relative;z-index:2}
.cta-panel p{color:rgba(255,255,255,.86);max-width:620px;position:relative;z-index:2}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;position:relative;z-index:2}
.btn-light-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:#fff;color:var(--brand-dark);border:1px solid #fff;border-radius:var(--radius-btn);
  font-weight:600;padding:12px 24px;min-height:48px;transition:transform .2s ease,box-shadow .2s ease;
}
.btn-light-brand:hover{color:var(--brand-dark);transform:translateY(-1px);box-shadow:0 14px 28px rgba(0,0,0,.18)}
.btn-ghost-light{
  display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:600;
  border:1.5px solid rgba(255,255,255,.55);border-radius:var(--radius-btn);
  padding:12px 24px;min-height:48px;transition:background .2s ease;
}
.btn-ghost-light:hover{background:rgba(255,255,255,.14);color:#fff}

/* ---------- 隐私说明 ---------- */
.privacy-band{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 28px;display:flex;flex-wrap:wrap;align-items:center;gap:18px;justify-content:space-between;
  box-shadow:var(--shadow-sm);
}
.privacy-band .txt{display:flex;align-items:flex-start;gap:14px;max-width:760px}
.privacy-band i{color:var(--ok);font-size:1.2rem;margin-top:4px}
.privacy-band p{font-size:.92rem;color:var(--muted)}
.privacy-band p a{font-weight:600}
.trust-badges{display:flex;flex-wrap:wrap;gap:10px}
.trust-badges span{
  display:inline-flex;align-items:center;gap:6px;font-size:.82rem;font-weight:600;
  color:var(--brand-dark);background:var(--brand-light);border-radius:999px;padding:6px 13px;
}

/* ---------- 页脚 ---------- */
.footer-main{background:var(--ink-deep);color:rgba(255,255,255,.78);padding:66px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:38px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:1.12rem;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#1F7BC4,#155E9E);box-shadow:none}
.footer-main p{font-size:.9rem;line-height:1.85;color:rgba(255,255,255,.72)}
.footer-main h4{color:#fff;font-size:1rem;margin-bottom:16px;font-weight:600}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(255,255,255,.74);font-size:.92rem}
.footer-links a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;font-size:.92rem;color:rgba(255,255,255,.74);margin-bottom:12px}
.footer-contact i{color:var(--teal);margin-top:5px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:.85rem;color:rgba(255,255,255,.6);
}

/* ---------- 表单弹层 ---------- */
.form-modal .modal-content{border:0;border-radius:20px;overflow:hidden;box-shadow:0 30px 70px rgba(16,32,51,.28)}
.form-modal .modal-header{background:var(--brand-light);border-bottom:1px solid var(--line);padding:22px 26px}
.form-modal .modal-title{font-size:1.15rem;font-weight:700;color:var(--brand-dark)}
.form-modal .modal-body{padding:26px}
.form-modal .form-label{font-size:.9rem;font-weight:600;color:var(--ink);margin-bottom:8px}
.form-modal .form-control,.form-modal .form-select{
  border-radius:10px;border:1px solid var(--line);padding:12px 14px;min-height:48px;
  background:#FAFCFE;font-size:.95rem;color:var(--ink);
}
.form-modal .form-control:focus,.form-modal .form-select:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(21,94,158,.14);background:#fff;
}
.form-modal textarea.form-control{min-height:104px;resize:vertical}
.form-modal .form-check-input{width:18px;height:18px;margin-top:3px;border-radius:5px;border-color:#C7D6E4}
.form-modal .form-check-input:checked{background-color:var(--brand);border-color:var(--brand)}
.form-modal .form-check-label{font-size:.86rem;color:var(--muted)}
.form-modal .btn-brand{width:100%;min-height:48px}
.form-note{font-size:.8rem;color:var(--muted);margin-top:12px;text-align:center}

/* ---------- 移动端导航 ---------- */
.offcanvas.site-offcanvas{background:#fff;max-width:320px}
.site-offcanvas .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.site-offcanvas .offcanvas-title{font-weight:700;color:var(--brand-dark)}
.site-offcanvas .offcanvas-body{padding:16px 12px}
.site-offcanvas .m-nav a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 14px;border-radius:11px;color:#33475E;font-weight:500;font-size:1rem;
}
.site-offcanvas .m-nav a:hover,.site-offcanvas .m-nav a.active{background:var(--brand-light);color:var(--brand-dark);font-weight:600}
.site-offcanvas .m-cta{padding:16px 12px 26px}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .nav-links a{padding:8px 9px;font-size:.9rem}
  .nav-search input{width:108px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:30px}
}
@media (max-width:991px){
  .nav-links,.nav-search{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .section{padding:64px 0}
  .page-hero{padding:64px 0 58px}
  .intro-grid{grid-template-columns:1fr;gap:34px}
  .media-chip{left:16px;bottom:16px}
  .dual-grid{grid-template-columns:1fr}
  .flow-grid{grid-template-columns:1fr 1fr}
  .scene-list{grid-template-columns:1fr 1fr}
  .stat-strip{grid-template-columns:1fr 1fr;padding:30px 24px;gap:28px}
  .stat-item{padding-right:0}
  .stat-item:nth-child(2)::after{display:none}
  .stat-item:nth-child(odd)::after{display:block}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .cta-panel{padding:40px 28px}
}
@media (max-width:575px){
  .container-site{padding:0 18px}
  .section{padding:52px 0}
  .brand-text{font-size:1rem}
  .page-hero{padding:52px 0 48px}
  .flow-grid,.scene-list,.stat-strip{grid-template-columns:1fr}
  .stat-item::after{display:none !important}
  .footer-grid{grid-template-columns:1fr}
  .cta-panel{padding:34px 22px;border-radius:18px}
  .cta-actions .btn-light-brand,.cta-actions .btn-ghost-light{width:100%}
  .privacy-band{padding:20px}
}

/* roulang page: category5 */
:root{
  --brand:#155E9E;
  --brand-dark:#0E4A7A;
  --brand-light:#E8F1F9;
  --accent:#FF6B35;
  --accent-dark:#E85A28;
  --teal:#16B8A6;
  --bg:#F5F8FC;
  --surface:#FFFFFF;
  --ink:#102033;
  --ink-soft:#5B6B7F;
  --line:#E3EAF2;
  --success:#1F9D6A;
  --warn:#D9822B;
  --footer-bg:#0F2740;
  --radius-card:16px;
  --radius-btn:11px;
  --radius-img:18px;
  --radius-input:10px;
  --shadow-card:0 10px 30px rgba(16,32,51,.08);
  --shadow-card-hover:0 16px 40px rgba(16,32,51,.12);
  --shadow-nav:0 6px 18px rgba(16,32,51,.06);
  --space-section:104px;
  --bs-primary:#155E9E;
  --bs-body-bg:#F5F8FC;
  --bs-body-color:#102033;
  --bs-border-radius:12px;
  --bs-font-sans-serif:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --bs-link-color:#155E9E;
  --bs-link-hover-color:#0E4A7A;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4,h5{margin:0 0 .6em;font-weight:700;line-height:1.3;color:var(--ink);letter-spacing:.2px;}
h1{font-size:clamp(2rem,4vw,3.25rem);}
h2{font-size:clamp(1.5rem,3vw,2.25rem);}
h3{font-size:1.25rem;font-weight:600;}
h4{font-size:1.125rem;font-weight:600;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container-site{width:100%;max-width:1240px;margin:0 auto;padding:0 20px;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease;
}
.site-header.is-scrolled{box-shadow:var(--shadow-nav);}
.site-nav{display:flex;align-items:center;gap:22px;min-height:70px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:40px;height:40px;border-radius:12px;display:inline-flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;font-size:17px;box-shadow:0 6px 16px rgba(21,94,158,.28);
}
.brand-text{display:flex;flex-direction:column;font-weight:700;font-size:1.16rem;line-height:1.1;}
.brand-text small{font-size:.68rem;font-weight:500;color:var(--ink-soft);letter-spacing:.6px;margin-top:3px;}
.nav-links{display:flex;align-items:center;gap:2px;margin:0 auto;flex-wrap:nowrap;}
.nav-links a{
  display:inline-block;padding:9px 12px;border-radius:10px;
  color:var(--ink-soft);font-size:.94rem;font-weight:500;white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.nav-links a:hover{background:var(--brand-light);color:var(--brand-dark);}
.nav-links a.active{background:var(--brand-light);color:var(--brand);font-weight:600;}
.nav-side{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-search{
  display:flex;align-items:center;gap:8px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-btn);
  padding:8px 12px;transition:border-color .2s ease,background .2s ease;
}
.nav-search:focus-within{border-color:var(--brand);background:#fff;}
.nav-search i{color:var(--ink-soft);font-size:.85rem;}
.nav-search input{border:0;background:transparent;outline:none;width:118px;font-size:.9rem;color:var(--ink);}
.nav-search input::placeholder{color:#93A2B4;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--ink);font-size:1.05rem;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand);}

/* ---------- 按钮 ---------- */
.btn-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:var(--brand);color:#fff;border:1px solid var(--brand);
  padding:12px 24px;border-radius:var(--radius-btn);font-weight:600;font-size:.96rem;
  min-height:48px;cursor:pointer;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
  box-shadow:0 8px 20px rgba(21,94,158,.22);
}
.btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 12px 26px rgba(21,94,158,.28);}
.btn-brand:active{transform:translateY(0);}
.btn-outline-brand{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  background:transparent;color:var(--brand);border:1px solid var(--brand);
  padding:12px 24px;border-radius:var(--radius-btn);font-weight:600;font-size:.96rem;
  min-height:48px;cursor:pointer;transition:background .2s ease,transform .2s ease;
}
.btn-outline-brand:hover{background:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost-brand{
  display:inline-flex;align-items:center;gap:8px;background:none;border:0;padding:8px 0;
  color:var(--brand);font-weight:600;font-size:.95rem;cursor:pointer;
}
.btn-ghost-brand i{transition:transform .2s ease;}
.btn-ghost-brand:hover{color:var(--brand-dark);}
.btn-ghost-brand:hover i{transform:translateX(4px);}
.btn-sm-brand{padding:9px 18px;min-height:42px;font-size:.9rem;border-radius:10px;}

.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-light);color:var(--brand-dark);
  padding:6px 12px;border-radius:999px;font-size:.8rem;font-weight:600;letter-spacing:.4px;
}
.badge-accent{background:#FFF1EA;color:var(--accent-dark);}
.badge-teal{background:#E4F7F4;color:#0E8C7E;}

/* ---------- Hero 横幅 ---------- */
.hero-banner{
  position:relative;overflow:hidden;
  background-image:linear-gradient(115deg,rgba(15,39,64,.92) 0%,rgba(21,94,158,.86) 52%,rgba(21,94,158,.62) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  color:#fff;padding:74px 0 66px;
}
.hero-banner::after{
  content:"";position:absolute;right:-120px;top:-90px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
}
.hero-banner .container-site{position:relative;z-index:2;}
.hero-banner h1{color:#fff;max-width:14em;margin-bottom:18px;}
.hero-lead{font-size:1.06rem;color:rgba(255,255,255,.88);max-width:44em;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.hero-tags span{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24);
  padding:7px 14px;border-radius:999px;font-size:.85rem;color:#fff;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-banner .btn-brand{background:var(--accent);border-color:var(--accent);box-shadow:0 10px 24px rgba(255,107,53,.3);}
.hero-banner .btn-brand:hover{background:var(--accent-dark);border-color:var(--accent-dark);}
.hero-banner .btn-outline-brand{color:#fff;border-color:rgba(255,255,255,.55);}
.hero-banner .btn-outline-brand:hover{background:rgba(255,255,255,.14);color:#fff;}

.breadcrumb-line{background:#fff;border-bottom:1px solid var(--line);}
.breadcrumb-line .container-site{display:flex;align-items:center;gap:8px;flex-wrap:wrap;padding-top:14px;padding-bottom:14px;}
.breadcrumb-line a,.breadcrumb-line span{font-size:.86rem;color:var(--ink-soft);}
.breadcrumb-line a:hover{color:var(--brand);}
.breadcrumb-line .sep{color:#B7C4D4;}
.breadcrumb-line .current{color:var(--brand);font-weight:600;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--space-section) 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin:0 auto 48px;text-align:center;}
.section-head.left{margin-left:0;text-align:left;}
.section-head p{color:var(--ink-soft);margin-bottom:0;}
.section-head h2{margin-bottom:14px;}
.section-alt{background:#fff;}

/* ---------- 简介分栏 ---------- */
.intro-split{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.intro-split h2{margin-bottom:16px;}
.intro-split p{color:var(--ink-soft);}
.intro-list{margin-top:22px;display:grid;gap:14px;}
.intro-list li{display:flex;gap:12px;align-items:flex-start;font-size:.96rem;color:var(--ink);}
.intro-list i{color:var(--teal);margin-top:5px;}
.intro-media{position:relative;}
.intro-media img{border-radius:var(--radius-img);box-shadow:var(--shadow-card);width:100%;aspect-ratio:4/3;object-fit:cover;}
.float-card{
  position:absolute;left:-22px;bottom:-26px;background:#fff;border:1px solid var(--line);
  border-radius:14px;box-shadow:var(--shadow-card);padding:16px 20px;max-width:250px;
}
.float-card strong{display:block;font-size:1.5rem;color:var(--brand);line-height:1.2;}
.float-card span{font-size:.82rem;color:var(--ink-soft);}

/* ---------- FAQ ---------- */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start;}
.faq-aside{background:linear-gradient(160deg,var(--brand) 0%,var(--brand-dark) 100%);color:#fff;border-radius:20px;padding:34px 30px;box-shadow:var(--shadow-card);}
.faq-aside h3{color:#fff;margin-bottom:12px;}
.faq-aside p{color:rgba(255,255,255,.82);font-size:.94rem;}
.faq-aside ul{margin-top:20px;display:grid;gap:12px;}
.faq-aside li{display:flex;gap:10px;font-size:.92rem;color:rgba(255,255,255,.92);}
.faq-aside i{color:var(--accent);margin-top:5px;}
.faq-accordion .accordion-item{
  border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:14px;overflow:hidden;
  box-shadow:0 4px 14px rgba(16,32,51,.04);
}
.faq-accordion .accordion-button{
  font-weight:600;font-size:1.02rem;color:var(--ink);background:#fff;padding:20px 22px;
  box-shadow:none;border:0;
}
.faq-accordion .accordion-button:not(.collapsed){color:var(--brand);background:var(--brand-light);}
.faq-accordion .accordion-button::after{
  background-image:none;content:"\2b";font-family:"Font Awesome 6 Free";font-weight:900;
  width:26px;height:26px;display:flex;align-items:center;justify-content:center;
  border-radius:8px;background:var(--brand-light);color:var(--brand);font-size:.8rem;
  transition:transform .25s ease,background .25s ease,color .25s ease;flex:none;
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  content:"\2212";background:var(--brand);color:#fff;transform:rotate(180deg);
}
.faq-accordion .accordion-button:focus{outline:2px solid var(--brand);outline-offset:-2px;}
.faq-accordion .accordion-body{padding:4px 22px 24px;color:var(--ink-soft);font-size:.95rem;border-top:1px solid var(--line);}

/* ---------- 卡片矩阵 ---------- */
.card-matrix{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;}
.topic-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-card);display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.topic-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-card-hover);border-color:#CFE0EF;}
.topic-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;}
.topic-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.topic-card:hover .thumb img{transform:scale(1.05);}
.topic-card .thumb .tag{
  position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--brand-dark);
  padding:5px 12px;border-radius:999px;font-size:.76rem;font-weight:600;
}
.topic-card .body{padding:24px 22px 26px;display:flex;flex-direction:column;flex:1;}
.topic-card .idx{
  font-size:.78rem;font-weight:700;letter-spacing:1.4px;color:var(--accent);margin-bottom:8px;
}
.topic-card h3{margin-bottom:10px;}
.topic-card p{color:var(--ink-soft);font-size:.94rem;margin-bottom:16px;}
.topic-card ul{display:grid;gap:8px;margin-bottom:20px;}
.topic-card ul li{font-size:.9rem;color:var(--ink);display:flex;gap:9px;}
.topic-card ul li i{color:var(--teal);font-size:.78rem;margin-top:6px;}
.topic-card .card-foot{margin-top:auto;}

/* ---------- 数据条 ---------- */
.stats-band{
  background:linear-gradient(120deg,#0E4A7A 0%,#155E9E 100%);
  border-radius:24px;color:#fff;padding:52px 40px;position:relative;overflow:hidden;
}
.stats-band::before{
  content:"";position:absolute;inset:0;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:22px 22px;opacity:.5;
}
.stats-band .inner{position:relative;z-index:2;display:grid;grid-template-columns:repeat(4,1fr);gap:28px;}
.stat-item{border-left:1px solid rgba(255,255,255,.22);padding-left:22px;}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-item strong{display:block;font-size:clamp(1.8rem,3vw,2.5rem);font-weight:700;color:#fff;line-height:1.1;}
.stat-item .lbl{display:block;margin-top:8px;font-size:.94rem;font-weight:600;color:#BFE0F5;}
.stat-item .desc{display:block;margin-top:6px;font-size:.83rem;color:rgba(255,255,255,.72);}

/* ---------- CTA ---------- */
.cta-band{
  background:#fff;border:1px solid var(--line);border-radius:24px;
  padding:48px 44px;display:grid;grid-template-columns:1.35fr .65fr;gap:34px;align-items:center;
  box-shadow:var(--shadow-card);
}
.cta-band h2{margin-bottom:12px;}
.cta-band p{color:var(--ink-soft);margin-bottom:0;}
.cta-actions{display:flex;flex-direction:column;gap:14px;}
.cta-actions .btn-brand,.cta-actions .btn-outline-brand{width:100%;}

/* ---------- 隐私说明 ---------- */
.privacy-note{
  background:var(--brand-light);border:1px solid #D3E5F3;border-radius:18px;padding:30px 34px;
  display:grid;grid-template-columns:auto 1fr auto;gap:22px;align-items:center;
}
.privacy-note .ico{
  width:52px;height:52px;border-radius:14px;background:#fff;color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:1.3rem;box-shadow:0 6px 16px rgba(21,94,158,.12);
}
.privacy-note h3{margin-bottom:6px;font-size:1.1rem;}
.privacy-note p{margin:0;color:var(--ink-soft);font-size:.92rem;}
.trust-badges{display:flex;gap:10px;flex-wrap:wrap;}
.trust-badges span{
  background:#fff;border:1px solid #D3E5F3;color:var(--brand-dark);
  padding:7px 13px;border-radius:10px;font-size:.8rem;font-weight:600;white-space:nowrap;
}

/* ---------- 页脚 ---------- */
.footer-main{background:var(--footer-bg);color:rgba(255,255,255,.78);padding:70px 0 0;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:1.2rem;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-brand .brand-mark{width:38px;height:38px;border-radius:11px;background:linear-gradient(135deg,var(--accent) 0%,var(--accent-dark) 100%);box-shadow:none;}
.footer-main p{font-size:.9rem;line-height:1.8;color:rgba(255,255,255,.66);}
.footer-main h4{color:#fff;font-size:.98rem;margin-bottom:18px;letter-spacing:.5px;}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:.9rem;}
.footer-links a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;font-size:.88rem;color:rgba(255,255,255,.72);margin-bottom:13px;line-height:1.6;}
.footer-contact i{color:var(--accent);margin-top:5px;}
.footer-bottom{
  margin-top:52px;border-top:1px solid rgba(255,255,255,.12);padding:22px 0 26px;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:.82rem;color:rgba(255,255,255,.55);
}

/* ---------- 弹层 ---------- */
.form-modal .modal-content{border:0;border-radius:20px;overflow:hidden;box-shadow:0 30px 70px rgba(10,25,45,.28);}
.form-modal .modal-header{
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;border:0;padding:24px 28px;
}
.form-modal .modal-header h5{color:#fff;margin:0;font-size:1.14rem;font-weight:700;}
.form-modal .modal-header p{margin:6px 0 0;font-size:.85rem;color:rgba(255,255,255,.78);}
.form-modal .btn-close{filter:invert(1) grayscale(1);opacity:.85;}
.form-modal .modal-body{padding:28px;}
.form-modal .form-label{font-size:.88rem;font-weight:600;color:var(--ink);margin-bottom:7px;}
.form-modal .form-control,.form-modal .form-select{
  border-radius:var(--radius-input);border:1px solid var(--line);padding:12px 14px;font-size:.94rem;background:#FBFDFF;
}
.form-modal .form-control:focus,.form-modal .form-select:focus{
  border-color:var(--brand);box-shadow:0 0 0 3px rgba(21,94,158,.14);background:#fff;
}
.form-modal .form-check-label{font-size:.86rem;color:var(--ink-soft);}
.form-modal .form-check-input:checked{background-color:var(--brand);border-color:var(--brand);}
.form-modal .submit-btn{width:100%;height:48px;}

/* ---------- 移动导航 ---------- */
.mobile-nav{width:min(88vw,340px);background:#fff;}
.mobile-nav .offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.mobile-nav .offcanvas-title{font-weight:700;color:var(--brand);}
.mobile-nav .offcanvas-body{padding:18px 20px 30px;}
.mobile-nav ul a{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;border-bottom:1px solid var(--line);color:var(--ink);font-weight:500;
}
.mobile-nav ul a.active{color:var(--brand);font-weight:600;}
.mobile-nav .mobile-cta{margin-top:22px;display:grid;gap:12px;}
.mobile-nav .mobile-cta .btn-brand{width:100%;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--space-section:88px;}
  .nav-links a{padding:9px 9px;font-size:.9rem;}
  .nav-search input{width:96px;}
}
@media (max-width:991px){
  :root{--space-section:72px;}
  .nav-links,.nav-search{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .intro-split{grid-template-columns:1fr;gap:56px;}
  .faq-wrap{grid-template-columns:1fr;gap:32px;}
  .card-matrix{grid-template-columns:repeat(2,1fr);}
  .stats-band .inner{grid-template-columns:repeat(2,1fr);gap:26px;}
  .stat-item:nth-child(3){border-left:0;padding-left:0;}
  .cta-band{grid-template-columns:1fr;padding:38px 30px;}
  .privacy-note{grid-template-columns:auto 1fr;padding:26px 24px;}
  .privacy-note .trust-badges{grid-column:1/-1;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:34px;}
  .hero-banner{padding:58px 0 52px;}
}
@media (max-width:767px){
  :root{--space-section:60px;}
  .brand-text small{display:none;}
  .section-head{margin-bottom:34px;}
  .card-matrix{grid-template-columns:1fr;}
  .stats-band{padding:38px 26px;border-radius:20px;}
  .float-card{position:static;margin-top:18px;max-width:none;}
  .hero-banner::after{display:none;}
  .hero-actions .btn-brand,.hero-actions .btn-outline-brand{width:100%;}
}
@media (max-width:575px){
  .container-site{padding:0 16px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .stats-band .inner{grid-template-columns:1fr;gap:22px;}
  .stat-item{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.18);padding-top:18px;}
  .stat-item:first-child{border-top:0;padding-top:0;}
  .privacy-note{grid-template-columns:1fr;}
  .faq-accordion .accordion-button{font-size:.96rem;padding:16px 16px;}
  .faq-accordion .accordion-body{padding:4px 16px 20px;}
}