/* roulang page: index */
:root{
  --primary:#1F5AA8;
  --primary-700:#17498C;
  --primary-050:#EAF1FB;
  --primary-100:#D6E4F7;
  --accent:#F07A2E;
  --accent-700:#D9651F;
  --success:#2E9E6B;
  --bg:#F7F8FA;
  --card:#FFFFFF;
  --text:#17233A;
  --muted:#5B6579;
  --weak:#939CAC;
  --line:#E5E9F0;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --shadow:0 2px 8px rgba(20,52,96,.06);
  --shadow-hover:0 10px 28px rgba(20,52,96,.12);
  --sidebar-w:240px;
  --bs-primary:#1F5AA8;
  --bs-primary-rgb:31,90,168;
  --bs-body-color:#17233A;
  --bs-body-bg:#F7F8FA;
  --bs-link-color:#1F5AA8;
  --bs-link-hover-color:#17498C;
  --bs-border-color:#E5E9F0;
  --bs-border-radius:10px;
  --bs-font-sans-serif:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
@media (min-width:1400px){:root{--sidebar-w:260px}}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out}
a:hover{color:var(--primary-700)}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);line-height:1.3}
p{margin:0 0 1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid rgba(31,90,168,.35);outline-offset:2px}

/* ---------- 左侧竖导航 ---------- */
.ng-sidebar{
  position:fixed;left:0;top:0;bottom:0;
  width:var(--sidebar-w);
  background:#fff;
  border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  z-index:1040;
}
.sb-brand{
  height:72px;display:flex;align-items:center;gap:10px;
  padding:0 20px;border-bottom:1px solid var(--line);
}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  background:linear-gradient(135deg,#2F6FC2,#1F5AA8);
  color:#fff;display:grid;place-items:center;
  font-weight:700;font-size:15px;letter-spacing:.5px;
}
.brand-text{font-weight:700;font-size:15px;color:var(--text);line-height:1.25}
.brand-sub{display:block;font-size:11px;color:var(--weak);font-weight:400;letter-spacing:.2px}
.sb-nav{padding:16px 12px;display:flex;flex-direction:column;gap:4px;flex:1 1 auto;overflow-y:auto}
.sb-link{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  color:var(--muted);font-size:14.5px;font-weight:500;
  transition:background .2s ease-out,color .2s ease-out;
}
.sb-link i{width:18px;text-align:center;font-size:15px;color:var(--weak);transition:color .2s ease-out}
.sb-link:hover{background:var(--primary-050);color:var(--primary)}
.sb-link:hover i{color:var(--primary)}
.sb-link.active{background:var(--primary-050);color:var(--primary);font-weight:600}
.sb-link.active i{color:var(--primary)}
.sb-link.active::before{
  content:"";position:absolute;left:-12px;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--primary);
}
.sb-foot{padding:16px 20px 20px;border-top:1px solid var(--line)}
.sb-foot .sb-note{font-size:12.5px;color:var(--weak);line-height:1.7;margin:0 0 10px}
.sb-foot .btn{width:100%;font-size:13.5px;padding:.55rem 1rem}

/* ---------- 移动端顶栏 ---------- */
.ng-topbar{
  display:none;position:sticky;top:0;z-index:1040;height:60px;
  align-items:center;justify-content:space-between;gap:12px;
  padding:0 16px;background:#fff;border-bottom:1px solid var(--line);
}
.topbar-brand{display:flex;align-items:center;gap:9px;color:var(--text);font-weight:700;font-size:14.5px}
.topbar-brand .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:10px;font-size:13px}
.menu-btn{
  width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:10px;color:var(--primary);font-size:17px;
  display:grid;place-items:center;cursor:pointer;
}
.ng-offcanvas{width:280px !important;border-right:1px solid var(--line)}
.ng-offcanvas .offcanvas-header{border-bottom:1px solid var(--line);height:72px;padding:0 20px}
.ng-offcanvas .offcanvas-body{padding:16px 12px}

/* ---------- 主内容 ---------- */
.ng-main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.ng-wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}
.sect{padding:88px 0}
.sect-tight{padding:56px 0}
.sect-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- 按钮体系 ---------- */
.btn{
  border-radius:var(--r-btn);
  padding:.72rem 1.4rem;
  font-weight:600;
  font-size:15px;
  transition:background-color .2s ease-out,color .2s ease-out,border-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn:active{transform:translateY(0)}
.btn-primary{
  --bs-btn-bg:var(--primary);--bs-btn-border-color:var(--primary);
  --bs-btn-color:#fff;--bs-btn-hover-color:#fff;--bs-btn-active-color:#fff;
  --bs-btn-hover-bg:var(--primary-700);--bs-btn-hover-border-color:var(--primary-700);
  --bs-btn-active-bg:var(--primary-700);--bs-btn-active-border-color:var(--primary-700);
  --bs-btn-disabled-bg:var(--primary-100);--bs-btn-disabled-border-color:var(--primary-100);
  --bs-btn-focus-shadow-rgb:31,90,168;
}
.btn-primary:hover{transform:translateY(-1px)}
.btn-outline-primary{
  --bs-btn-color:var(--primary);--bs-btn-border-color:var(--primary);
  --bs-btn-hover-bg:var(--primary-050);--bs-btn-hover-color:var(--primary-700);--bs-btn-hover-border-color:var(--primary);
  --bs-btn-active-bg:var(--primary-050);--bs-btn-active-color:var(--primary-700);--bs-btn-active-border-color:var(--primary);
  --bs-btn-focus-shadow-rgb:31,90,168;
}
.btn-accent{background:var(--accent);border:1px solid var(--accent);color:#fff;font-weight:600}
.btn-accent:hover{background:var(--accent-700);border-color:var(--accent-700);color:#fff;transform:translateY(-1px)}
.btn-white{background:#fff;border:1px solid #fff;color:var(--primary);font-weight:600}
.btn-white:hover{background:var(--primary-050);border-color:var(--primary-050);color:var(--primary-700)}
.btn-sm-p{padding:.5rem 1rem;font-size:14px}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:999px;background:var(--primary-050);color:var(--primary);
  font-size:12px;font-weight:500;white-space:nowrap;
}
.tag-accent{background:#FDEEE3;color:var(--accent-700)}
.tag-soft{background:#F1F3F7;color:var(--muted)}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:72px 0 64px;
  background:linear-gradient(180deg,#F1F6FD 0%,#F7F8FA 100%);
  border-bottom:1px solid var(--line);
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 14px;border-radius:999px;
  background:#fff;border:1px solid var(--primary-100);
  color:var(--primary);font-size:13px;font-weight:500;margin-bottom:20px;
}
.hero h1{font-size:40px;line-height:1.25;letter-spacing:-.2px;margin-bottom:14px;max-width:620px}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-lead{font-size:16.5px;color:var(--muted);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:6px}
.hero-media{
  border-radius:20px;overflow:hidden;
  box-shadow:0 18px 40px rgba(20,52,96,.12);
  border:1px solid var(--line);
  background:var(--primary-050);
}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.trust-row{display:flex;flex-wrap:wrap;gap:12px 30px;margin-top:28px}
.trust-item{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--muted)}
.trust-item i{color:var(--success);font-size:14px}

/* ---------- 板块标题 ---------- */
.sect-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.sect-title{font-size:30px;font-weight:700;margin-bottom:8px}
.sect-sub{color:var(--muted);font-size:15px;max-width:660px;margin:0}
.sect-more{font-size:14px;font-weight:500;white-space:nowrap;display:inline-flex;align-items:center;gap:6px}
.sect-more i{font-size:12px}

/* ---------- 产品网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.p-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);overflow:hidden;display:flex;flex-direction:column;
  transition:box-shadow .2s ease-out,border-color .2s ease-out;
}
.p-card:hover{box-shadow:var(--shadow-hover);border-color:var(--primary-100)}
.p-thumb{overflow:hidden;background:var(--primary-050)}
.p-thumb img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .2s ease-out}
.p-card:hover .p-thumb img{transform:scale(1.03)}
.p-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.p-title{font-size:18px;font-weight:600}
.p-desc{
  font-size:14px;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.p-spec{
  font-size:13px;color:var(--weak);border-top:1px dashed var(--line);
  padding-top:10px;display:flex;flex-wrap:wrap;gap:6px 14px;
}
.p-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:8px}
.price{color:var(--accent);font-weight:700;font-size:17px;line-height:1.2}
.price small{font-weight:400;font-size:12px;color:var(--weak);display:block}

/* ---------- 评价轮播 ---------- */
.review-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);padding:22px;height:100%;
  display:flex;flex-direction:column;gap:12px;
}
.stars{color:var(--accent);font-size:13px;letter-spacing:2px}
.review-text{
  font-size:14.5px;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.review-user{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:4px}
.avatar{
  width:40px;height:40px;flex:0 0 40px;border-radius:50%;
  background:var(--primary-050);color:var(--primary);
  display:grid;place-items:center;font-weight:600;font-size:14px;
}
.review-name{font-size:14px;font-weight:600;line-height:1.4}
.review-role{font-size:12.5px;color:var(--weak);line-height:1.4}
.carousel-indicators{position:static;margin:28px 0 0}
.carousel-indicators [data-bs-target]{
  width:8px;height:8px;border-radius:50%;background:var(--primary-100);
  border:0;opacity:1;margin:0 5px;transition:width .2s ease-out,background-color .2s ease-out;
}
.carousel-indicators .active{width:22px;border-radius:999px;background:var(--primary)}
.carousel-control-prev,.carousel-control-next{width:52px;opacity:1}
.carousel-control-prev i,.carousel-control-next i{
  position:absolute;top:50%;transform:translateY(-50%);
  width:42px;height:42px;border-radius:50%;
  background:#fff;border:1px solid var(--line);box-shadow:var(--shadow);
  color:var(--primary);font-size:14px;display:grid;place-items:center;
}
.carousel-control-prev i{left:6px}
.carousel-control-next i{right:6px}
.carousel-control-prev:hover i,.carousel-control-next:hover i{border-color:var(--primary-100);color:var(--primary-700)}

/* ---------- 保障条 ---------- */
.guarantee{background:var(--primary-050);border-radius:20px;padding:34px 38px}
.guarantee-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
.g-item{display:flex;gap:12px;align-items:flex-start}
.g-item i{font-size:24px;color:var(--success);line-height:1;margin-top:2px}
.g-name{font-size:15px;font-weight:600;margin:0 0 2px}
.g-note{font-size:13px;color:var(--muted);margin:0}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.n-card{
  display:flex;gap:16px;padding:16px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow);
  transition:box-shadow .2s ease-out,border-color .2s ease-out;
}
.n-card:hover{box-shadow:var(--shadow-hover);border-color:var(--primary-100)}
.n-thumb{width:160px;flex:0 0 160px;border-radius:var(--r-img);overflow:hidden;background:var(--primary-050)}
.n-thumb img{width:100%;height:114px;object-fit:cover}
.n-body{display:flex;flex-direction:column;gap:8px;min-width:0;flex:1 1 auto}
.n-title{
  font-size:16px;font-weight:600;color:var(--text);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.n-sum{
  font-size:13.5px;color:var(--muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.n-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--weak);margin-top:auto}
.n-meta .tag{height:22px;font-size:11.5px;padding:0 9px}
.empty{
  background:#fff;border:1px dashed var(--primary-100);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;color:var(--muted);
}
.empty i{font-size:30px;color:var(--primary-100);display:block;margin-bottom:14px}
.empty p{font-size:14.5px;margin-bottom:18px}

/* ---------- CTA 区块 ---------- */
.cta-block{
  background:linear-gradient(135deg,#2560B3 0%,#17498C 100%);
  border-radius:20px;padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 14px 34px rgba(20,52,96,.16);
}
.cta-block h2{color:#fff;font-size:28px;margin-bottom:10px}
.cta-block p{color:rgba(255,255,255,.84);font-size:15px;margin:0;max-width:640px}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px;margin:0 auto}
.faq .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow);
}
.faq .accordion-button{
  padding:20px 22px;font-size:17px;font-weight:600;color:var(--text);
  background:#fff;box-shadow:none;border:0;line-height:1.5;
}
.faq .accordion-button:not(.collapsed){color:var(--primary);background:#fff}
.faq .accordion-button:focus{box-shadow:0 0 0 3px rgba(31,90,168,.14)}
.faq .accordion-button::after{
  content:"+";background-image:none;transform:none;
  width:26px;height:26px;flex:0 0 26px;display:grid;place-items:center;
  font-size:20px;font-weight:400;color:var(--primary);line-height:1;
}
.faq .accordion-button:not(.collapsed)::after{content:"−";transform:none}
.faq .accordion-body{padding:0 22px 22px;color:var(--muted);font-size:14.5px;line-height:1.85}

/* ---------- 页脚 ---------- */
.ng-footer{background:#14213A;color:rgba(255,255,255,.7);margin-top:88px;padding:64px 0 0;font-size:14px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px}
.f-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.f-brand .brand-mark{background:rgba(255,255,255,.12);color:#fff}
.f-brand span{color:#fff;font-weight:700;font-size:16px}
.f-about{font-size:13.5px;line-height:1.85;color:rgba(255,255,255,.66);margin:0;max-width:340px}
.foot-title{color:#fff;font-size:15px;font-weight:600;margin:0 0 16px}
.foot-list{display:flex;flex-direction:column;gap:10px}
.foot-list a,.foot-list span{color:rgba(255,255,255,.68);font-size:13.5px}
.foot-list a:hover{color:#fff}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:48px;
  padding:20px 0;text-align:center;font-size:13px;color:rgba(255,255,255,.5);
}

/* ---------- 响应式 ---------- */
@media (max-width:1399.98px){
  .ng-wrap{padding:0 28px}
}
@media (max-width:1199.98px){
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
  .hero h1{font-size:34px}
  .sect-title{font-size:26px}
}
@media (max-width:991.98px){
  .ng-sidebar{display:none}
  .ng-topbar{display:flex}
  .ng-main{margin-left:0}
  .sect{padding:64px 0}
  .hero{padding:48px 0 48px}
  .hero h1{font-size:30px;max-width:none}
  .hero-media{margin-top:32px}
  .guarantee-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .cta-block{flex-direction:column;align-items:flex-start;padding:36px 32px;text-align:left}
  .cta-block h2{font-size:24px}
}
@media (max-width:767.98px){
  .ng-wrap{padding:0 18px}
  .grid-3{grid-template-columns:1fr;gap:16px}
  .news-grid{grid-template-columns:1fr}
  .n-card{flex-direction:column}
  .n-thumb{width:100%;flex:1 1 auto}
  .n-thumb img{height:180px}
  .sect{padding:48px 0}
  .sect-head{flex-direction:column;align-items:flex-start;gap:12px;margin-bottom:26px}
  .sect-title{font-size:22px}
  .hero h1{font-size:26px}
  .hero-lead{font-size:15px}
  .hero-actions .btn{flex:1 1 auto;text-align:center}
  .guarantee{padding:22px}
  .guarantee-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
  .cta-block{padding:28px 22px;border-radius:16px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto;text-align:center}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .carousel-control-prev,.carousel-control-next{display:none}
  .faq .accordion-button{font-size:15.5px;padding:16px 18px}
  .faq .accordion-body{padding:0 18px 18px}
}
@media (max-width:575.98px){
  .hero h1{font-size:24px}
  .trust-row{gap:10px 18px}
  .guarantee-grid{grid-template-columns:1fr}
  .review-card{padding:18px}
}

/* roulang page: category1 */
:root{
  --primary:#1F5AA8;
  --primary-700:#17498C;
  --primary-050:#EAF1FB;
  --primary-100:#D6E4F7;
  --accent:#F07A2E;
  --accent-700:#D9651F;
  --success:#2E9E6B;
  --bg:#F7F8FA;
  --card:#FFFFFF;
  --text:#17233A;
  --text-2:#5B6579;
  --text-3:#939CAC;
  --border:#E5E9F0;
  --footer-bg:#14213A;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow:0 2px 8px rgba(20,52,96,.06);
  --shadow-hover:0 10px 28px rgba(20,52,96,.12);
  --sidebar-w:240px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  --bs-body-color:var(--text);
  --bs-body-bg:var(--bg);
  --bs-primary:var(--primary);
  --bs-link-color:var(--primary);
  --bs-link-hover-color:var(--primary-700);
  --bs-border-color:var(--border);
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--primary-700);}
ul{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid rgba(31,90,168,.45);outline-offset:2px;}

.ng-wrap{max-width:1280px;margin:0 auto;padding:0 32px;}

/* ============ 左侧竖导航 ============ */
.sb-sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:#fff;
  border-right:1px solid var(--border);
  display:flex;
  flex-direction:column;
  z-index:1040;
}
.sb-brand{
  display:flex;
  align-items:center;
  gap:10px;
  height:72px;
  padding:0 20px;
  border-bottom:1px solid var(--border);
  color:var(--text);
}
.sb-brand:hover{color:var(--primary);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:12px;
  background:var(--primary);
  color:#fff;
  font-weight:700;
  font-size:17px;
  letter-spacing:.5px;
  flex:0 0 auto;
}
.brand-text{font-size:16px;font-weight:600;white-space:nowrap;}
.sb-nav{padding:16px 12px;display:flex;flex-direction:column;gap:4px;flex:1 1 auto;overflow-y:auto;}
.sb-link{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 14px;
  border-radius:var(--radius-btn);
  color:var(--text-2);
  font-size:15px;
  transition:background .2s ease-out,color .2s ease-out;
}
.sb-link i{font-size:15px;width:18px;text-align:center;color:var(--text-3);transition:color .2s ease-out;}
.sb-link:hover{background:var(--primary-050);color:var(--primary);}
.sb-link:hover i{color:var(--primary);}
.sb-link.active{
  background:var(--primary-050);
  color:var(--primary);
  font-weight:600;
}
.sb-link.active i{color:var(--primary);}
.sb-link.active::before{
  content:"";
  position:absolute;
  left:0;top:9px;bottom:9px;
  width:3px;
  border-radius:3px;
  background:var(--primary);
}
.sb-side-foot{
  padding:16px;
  border-top:1px solid var(--border);
  background:#fff;
}
.side-btn{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:42px;
  border-radius:var(--radius-btn);
  background:var(--primary);
  color:#fff;
  font-size:14px;
  font-weight:600;
  transition:background .2s ease-out,transform .2s ease-out;
}
.side-btn:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px);}
.side-note{margin-top:10px;font-size:12px;color:var(--text-3);text-align:center;line-height:1.6;}

/* ============ 移动端顶部条 ============ */
.sb-topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:60px;
  background:#fff;
  border-bottom:1px solid var(--border);
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
  z-index:1050;
  box-shadow:var(--shadow);
}
.sb-topbar .sb-brand{height:60px;padding:0;border:0;}
.sb-burger{
  width:44px;height:44px;
  border:1px solid var(--border);
  border-radius:var(--radius-btn);
  background:#fff;
  color:var(--primary);
  font-size:18px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.sb-burger:hover{background:var(--primary-050);}
.ng-offcanvas{width:290px !important;}
.ng-offcanvas .offcanvas-header{border-bottom:1px solid var(--border);}
.ng-offcanvas .offcanvas-title{font-size:16px;font-weight:600;color:var(--text);}

/* ============ 主内容区 ============ */
.sb-main{margin-left:var(--sidebar-w);padding:32px 0 0;}

/* ============ 面包屑 ============ */
.crumb{
  font-size:13px;
  color:var(--text-3);
  margin-bottom:14px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:6px;
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:#C6CCD8;}
.crumb .now{color:var(--primary);}

/* ============ 分类页头 ============ */
.page-hero{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  min-height:210px;
  display:flex;
  align-items:center;
  padding:38px 40px;
  background:var(--primary-700) url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  color:#fff;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(20,52,96,.68);
}
.page-hero-inner{position:relative;z-index:1;max-width:760px;}
.page-hero h1{
  font-size:40px;
  line-height:1.25;
  font-weight:700;
  color:#fff;
  letter-spacing:.5px;
}
.page-hero p{
  margin-top:12px;
  font-size:16px;
  color:rgba(255,255,255,.88);
  max-width:600px;
}
.hero-tags{margin-top:18px;display:flex;flex-wrap:wrap;gap:10px;}
.hero-tags span{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:30px;
  padding:0 14px;
  border-radius:999px;
  background:rgba(255,255,255,.16);
  border:1px solid rgba(255,255,255,.28);
  font-size:13px;
  color:#fff;
}

/* ============ 子锚点条 ============ */
.anchor-bar{
  margin-top:20px;
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:10px;
  display:flex;
  gap:8px;
  overflow-x:auto;
  box-shadow:var(--shadow);
}
.anchor-bar a{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 18px;
  border-radius:var(--radius-btn);
  font-size:14px;
  color:var(--text-2);
  white-space:nowrap;
  transition:background .2s ease-out,color .2s ease-out;
}
.anchor-bar a:hover{background:var(--primary-050);color:var(--primary);}
.anchor-bar a.on{background:var(--primary);color:#fff;font-weight:600;}
.anchor-bar a.on:hover{background:var(--primary-700);color:#fff;}

/* ============ 通用板块 ============ */
.section{padding:72px 0 0;}
.section-head{margin-bottom:34px;max-width:760px;}
.section-head h2{
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  color:var(--text);
}
.section-head p{margin-top:12px;font-size:16px;color:var(--text-2);}
.eyebrow{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  background:var(--primary-050);
  border-radius:999px;
  padding:4px 14px;
  margin-bottom:12px;
}

/* ============ 图文交替 ============ */
.zig-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:52px;
  align-items:center;
  padding:26px 0;
}
.zig-row + .zig-row{border-top:1px solid var(--border);}
.zig-media{position:relative;}
.zig-media img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:16px;
  box-shadow:var(--shadow);
  transition:transform .2s ease-out,box-shadow .2s ease-out;
}
.zig-row .zig-media:hover img{transform:scale(1.02);box-shadow:var(--shadow-hover);}
.zig-row.rev .zig-media{order:2;}
.zig-row.rev .zig-body{order:1;}
.zig-body h2{font-size:26px;line-height:1.35;font-weight:700;}
.zig-body > p{margin-top:14px;color:var(--text-2);}
.dot-list{margin-top:18px;display:flex;flex-direction:column;gap:10px;}
.dot-list li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  color:var(--text-2);
}
.dot-list li::before{
  content:"";
  position:absolute;
  left:6px;top:12px;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--primary);
}
.dot-list li strong{color:var(--text);font-weight:600;}
.zig-actions{margin-top:24px;display:flex;flex-wrap:wrap;gap:12px;}

/* ============ 按钮 ============ */
.btn-ng,.btn-ng-outline,.btn-accent,.btn-white,.btn-white-line{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:background .2s ease-out,color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.btn-ng{background:var(--primary);color:#fff;}
.btn-ng:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-ng:active{transform:translateY(0);}
.btn-ng-outline{background:transparent;color:var(--primary);border-color:var(--primary-100);}
.btn-ng-outline:hover{background:var(--primary-050);color:var(--primary-700);border-color:var(--primary);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px);}
.btn-white{background:#fff;color:var(--primary);}
.btn-white:hover{background:var(--primary-050);color:var(--primary-700);transform:translateY(-1px);}
.btn-white-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-white-line:hover{background:rgba(255,255,255,.14);color:#fff;}

/* ============ 选型流程 ============ */
.flow-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.flow-card{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  padding:26px;
  box-shadow:var(--shadow);
  transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.flow-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.flow-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;height:40px;
  border-radius:12px;
  background:var(--primary-050);
  color:var(--primary);
  font-weight:700;
  font-size:17px;
  margin-bottom:16px;
}
.flow-card h3{font-size:19px;font-weight:600;}
.flow-card p{margin-top:10px;font-size:15px;color:var(--text-2);}

/* ============ 对比信息条 ============ */
.compare{padding:72px 0 0;}
.compare-box{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow);
}
.compare-row{
  display:grid;
  grid-template-columns:1.1fr 1fr 1.4fr;
  gap:16px;
  padding:18px 24px;
  border-bottom:1px solid var(--border);
  font-size:15px;
  align-items:center;
}
.compare-row:last-child{border-bottom:0;}
.compare-row.head{
  background:var(--primary-050);
  font-weight:600;
  color:var(--primary-700);
  font-size:14px;
}
.compare-row span:first-child{font-weight:600;color:var(--text);}
.compare-row span{color:var(--text-2);}
.badge-soft{
  display:inline-block;
  padding:3px 12px;
  border-radius:999px;
  font-size:13px;
  background:var(--primary-050);
  color:var(--primary);
  font-weight:500;
}

/* ============ 保障条 ============ */
.guard{
  margin-top:72px;
  background:var(--primary-050);
  border-radius:var(--radius-card);
  padding:30px 32px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
}
.guard-item{display:flex;gap:12px;align-items:flex-start;}
.guard-item i{font-size:22px;color:var(--success);margin-top:2px;}
.guard-item strong{display:block;font-size:15px;font-weight:600;}
.guard-item span{font-size:13px;color:var(--text-2);}

/* ============ FAQ ============ */
.ng-faq .accordion-item{
  background:#fff;
  border:1px solid var(--border);
  border-radius:var(--radius-card) !important;
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--shadow);
}
.ng-faq .accordion-button{
  display:flex;
  align-items:center;
  gap:14px;
  font-size:17px;
  font-weight:600;
  color:var(--text);
  background:#fff;
  padding:20px 24px;
  box-shadow:none;
  border:0;
}
.ng-faq .accordion-button:not(.collapsed){color:var(--primary);background:#fff;}
.ng-faq .accordion-button:focus{box-shadow:none;border:0;}
.ng-faq .accordion-button::after{display:none;}
.ng-faq .accordion-button::before{
  content:"+";
  margin-left:auto;
  order:2;
  width:26px;height:26px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  background:var(--primary-050);
  color:var(--primary);
  font-size:16px;
  font-weight:700;
  flex:0 0 auto;
}
.ng-faq .accordion-button:not(.collapsed)::before{content:"−";background:var(--primary);color:#fff;}
.ng-faq .accordion-body{
  padding:0 24px 22px;
  font-size:15px;
  color:var(--text-2);
}

/* ============ CTA ============ */
.cta-block{
  margin-top:72px;
  background:var(--primary);
  border-radius:20px;
  padding:44px 40px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  color:#fff;
  box-shadow:0 12px 34px rgba(31,90,168,.20);
}
.cta-block h2{font-size:28px;line-height:1.35;font-weight:700;color:#fff;}
.cta-block p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.86);max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto;}

/* ============ 页脚 ============ */
.ng-footer{
  margin-top:80px;
  background:var(--footer-bg);
  color:rgba(255,255,255,.7);
  padding:56px 0 0;
  font-size:14px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:36px;
  padding-bottom:40px;
}
.f-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:16px;
  font-weight:600;
  margin-bottom:16px;
}
.f-brand .brand-mark{background:var(--primary);}
.f-about{color:rgba(255,255,255,.7);line-height:1.8;font-size:14px;}
.foot-title{color:#fff;font-weight:600;font-size:15px;margin-bottom:16px;}
.foot-list{display:flex;flex-direction:column;gap:10px;}
.foot-list a,.foot-list span{color:rgba(255,255,255,.7);font-size:14px;}
.foot-list a:hover{color:#fff;}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (min-width:1400px){
  :root{--sidebar-w:260px;}
  .ng-wrap{padding:0 40px;}
}
@media (max-width:1199.98px){
  .zig-row{gap:36px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;row-gap:32px;}
}
@media (max-width:991.98px){
  .sb-sidebar{display:none;}
  .sb-topbar{display:flex;}
  .sb-main{margin-left:0;padding-top:76px;}
  .page-hero{padding:30px 24px;min-height:190px;}
  .page-hero h1{font-size:30px;}
  .section{padding:56px 0 0;}
  .compare{padding:56px 0 0;}
  .guard{margin-top:56px;grid-template-columns:repeat(2,1fr);}
  .cta-block{margin-top:56px;}
  .section-head h2{font-size:24px;}
  .flow-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767.98px){
  body{font-size:15px;}
  .ng-wrap{padding:0 16px;}
  .zig-row{grid-template-columns:1fr;gap:22px;padding:20px 0;}
  .zig-row.rev .zig-media{order:0;}
  .zig-row.rev .zig-body{order:0;}
  .zig-body h2{font-size:21px;}
  .page-hero h1{font-size:26px;}
  .page-hero p{font-size:15px;}
  .section-head h2{font-size:22px;}
  .flow-grid{grid-template-columns:1fr;}
  .compare-row{grid-template-columns:1fr;gap:6px;padding:16px 18px;}
  .compare-row.head{display:none;}
  .compare-row span:first-child{font-size:15px;}
  .guard{grid-template-columns:1fr 1fr;padding:22px 20px;gap:18px;}
  .cta-block{flex-direction:column;align-items:flex-start;padding:30px 22px;text-align:left;}
  .cta-block h2{font-size:22px;}
  .cta-actions{width:100%;}
  .cta-actions a{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .ng-faq .accordion-button{font-size:16px;padding:16px 18px;}
  .ng-faq .accordion-body{padding:0 18px 18px;}
  .section{padding:44px 0 0;}
  .compare{padding:44px 0 0;}
  .guard{margin-top:44px;}
  .ng-footer{margin-top:56px;}
}
@media (max-width:519.98px){
  .guard{grid-template-columns:1fr;}
  .hero-tags span{font-size:12px;padding:0 10px;}
  .zig-actions a{width:100%;}
}

/* roulang page: article */
:root{
  --primary:#1F5AA8;
  --primary-700:#17498C;
  --primary-050:#EAF1FB;
  --primary-100:#D6E4F7;
  --accent:#F07A2E;
  --accent-600:#D9651F;
  --success:#2E9E6B;
  --bg:#F7F8FA;
  --card:#FFFFFF;
  --text:#17233A;
  --text-2:#5B6579;
  --text-3:#939CAC;
  --border:#E5E9F0;
  --dark:#14213A;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --shadow:0 2px 8px rgba(20,52,96,.06);
  --shadow-hover:0 10px 28px rgba(20,52,96,.12);
  --sidebar:240px;
  --bs-primary:#1F5AA8;
  --bs-link-color:#1F5AA8;
  --bs-link-hover-color:#17498C;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-700)}
p{margin:0 0 1em}
ul,ol{margin:0}
button,input,textarea,select{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid rgba(31,90,168,.45);outline-offset:2px}
h1,h2,h3,h4{color:var(--text);margin:0;font-weight:600;letter-spacing:0}
.sb-main{margin-left:var(--sidebar);min-height:100vh;display:flex;flex-direction:column}
.ng-wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 32px}

/* 左侧竖栏 */
.sb-sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar);
  background:#fff;border-right:1px solid var(--border);
  display:flex;flex-direction:column;z-index:1040;
}
.sb-brand{height:72px;display:flex;align-items:center;gap:10px;padding:0 20px;border-bottom:1px solid var(--border)}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;background:var(--primary);
  color:#fff;font-weight:700;font-size:15px;letter-spacing:.4px;flex:none;
}
.brand-text{font-size:15px;font-weight:600;color:var(--text);line-height:1.3}
.sb-nav{display:flex;flex-direction:column;gap:4px;padding:14px 12px;flex:1;overflow-y:auto}
.sb-link{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;
  border-radius:10px;border-left:3px solid transparent;
  color:var(--text-2);font-size:15px;font-weight:500;
  transition:background .2s ease,color .2s ease;
}
.sb-link i{width:18px;text-align:center;font-size:15px;color:var(--text-3);transition:color .2s ease}
.sb-link:hover{background:var(--primary-050);color:var(--primary)}
.sb-link:hover i{color:var(--primary)}
.sb-link.active{background:var(--primary-050);color:var(--primary);font-weight:600;border-left-color:var(--primary)}
.sb-link.active i{color:var(--primary)}
.sb-aside-foot{padding:16px;border-top:1px solid var(--border);font-size:13px;color:var(--text-3);line-height:1.7}
.sb-aside-foot strong{display:block;color:var(--text);font-size:14px;font-weight:600;margin-bottom:4px}
.sb-call{
  display:inline-flex;align-items:center;gap:8px;margin-top:10px;
  height:38px;padding:0 14px;border-radius:var(--r-btn);
  background:var(--primary);color:#fff;font-size:13px;font-weight:500;
}
.sb-call:hover{background:var(--primary-700);color:#fff}

/* 移动端顶部条 */
.sb-topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;
  align-items:center;justify-content:space-between;padding:0 16px;
  background:#fff;border-bottom:1px solid var(--border);z-index:1040;
}
.topbar-brand{display:flex;align-items:center;gap:9px;font-weight:600;color:var(--text)}
.menu-btn{
  width:44px;height:44px;border:1px solid var(--border);border-radius:var(--r-btn);
  background:#fff;color:var(--primary);display:inline-flex;align-items:center;justify-content:center;
}
.menu-btn:hover{background:var(--primary-050)}
.ng-drawer{--bs-offcanvas-width:280px;width:280px}
.ng-drawer .offcanvas-header{border-bottom:1px solid var(--border);padding:16px 18px}
.ng-drawer .offcanvas-body{padding:14px 12px}
.ng-drawer .sb-nav{padding:0}

/* 文章头部 */
.article-hero{background:var(--primary-050);border-bottom:1px solid var(--primary-100);padding:36px 0 40px}
.crumbs{display:flex;flex-wrap:nowrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:18px;overflow:hidden}
.crumbs a{color:var(--text-3)}
.crumbs a:hover{color:var(--primary)}
.crumbs .sep{color:#c3ccdb}
.crumb-current{color:var(--primary);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:46vw}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 14px;
  border-radius:999px;background:#fff;border:1px solid var(--primary-100);
  color:var(--primary);font-size:13px;font-weight:500;margin-bottom:14px;
}
.article-title{font-size:40px;line-height:1.25;font-weight:700;margin-bottom:16px}
.meta-row{display:flex;flex-wrap:wrap;gap:20px;font-size:14px;color:var(--text-2)}
.meta-row i{color:var(--primary);margin-right:6px}

/* 文章布局 */
.article-section{padding:56px 0 24px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:32px;align-items:start}
.article-panel{background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--shadow);padding:36px 40px 32px}
.article-body{max-width:780px;font-size:16px;line-height:1.8;color:#28334a;overflow-wrap:break-word}
.article-body p{margin:0 0 18px}
.article-body h2{
  font-size:24px;line-height:1.4;color:var(--text);font-weight:600;
  margin:36px 0 14px;padding-left:12px;border-left:4px solid var(--primary);
}
.article-body h3{font-size:19px;line-height:1.5;color:var(--text);font-weight:600;margin:28px 0 10px}
.article-body ul,.article-body ol{padding-left:22px;margin:0 0 18px}
.article-body li{margin-bottom:6px}
.article-body li::marker{color:var(--primary)}
.article-body blockquote{
  margin:0 0 20px;padding:16px 18px;background:var(--primary-050);
  border-left:3px solid var(--primary);border-radius:8px;color:var(--text);font-style:normal;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:var(--r-img);margin:20px 0;width:100%;height:auto}
.article-body figure{margin:20px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:0 0 20px;font-size:15px}
.article-body th{background:var(--primary-050);color:var(--text);font-weight:600;text-align:left}
.article-body th,.article-body td{border-bottom:1px solid var(--border);padding:10px 14px;white-space:nowrap}
.article-body a{color:var(--primary);border-bottom:1px solid var(--primary-100)}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body code{background:var(--primary-050);color:var(--primary-700);border-radius:6px;padding:2px 6px;font-size:14px}

.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:32px;padding-top:24px;border-top:1px solid var(--border)}
.tag-row .tag-label{font-size:14px;color:var(--text-3)}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--primary-050);color:var(--primary);font-size:13px;transition:background .2s ease;
}
.tag:hover{background:var(--primary-100);color:var(--primary-700)}

.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:24px}
.post-nav-card{
  display:block;padding:18px 20px;border:1px solid var(--border);border-radius:var(--r-card);
  background:#fff;transition:box-shadow .2s ease,border-color .2s ease;
}
.post-nav-card:hover{border-color:var(--primary-100);box-shadow:var(--shadow-hover)}
.post-nav-card .dir{font-size:13px;color:var(--text-3);display:block;margin-bottom:6px}
.post-nav-card .txt{font-size:15px;font-weight:600;color:var(--text)}
.post-nav-card:hover .txt{color:var(--primary)}

/* 侧栏 */
.article-side{display:flex;flex-direction:column;gap:20px}
.side-card{background:var(--card);border:1px solid var(--border);border-radius:var(--r-card);box-shadow:var(--shadow);padding:22px}
.side-title{font-size:16px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.side-title i{color:var(--primary);font-size:14px}
.side-list{display:flex;flex-direction:column;gap:14px}
.side-item{display:flex;gap:12px;align-items:flex-start}
.side-item img{width:76px;height:56px;object-fit:cover;border-radius:10px;flex:none}
.side-item .t{font-size:14px;line-height:1.6;color:var(--text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.side-item:hover .t{color:var(--primary)}
.side-item .d{font-size:12px;color:var(--text-3);margin-top:4px}
.side-consult{background:linear-gradient(180deg,#fff 0%,#F4F8FE 100%);border:1px solid var(--primary-100)}
.form-field{margin-bottom:12px}
.form-field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:6px}
.form-control-ng{
  width:100%;height:44px;padding:0 13px;border:1px solid var(--border);
  border-radius:var(--r-btn);background:#fff;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
textarea.form-control-ng{height:88px;padding:11px 13px;resize:vertical;line-height:1.6}
.form-control-ng::placeholder{color:#b3bcca}
.form-control-ng:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(31,90,168,.12)}
.btn-ng{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;transition:all .2s ease;
}
.btn-solid{background:var(--primary);color:#fff}
.btn-solid:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px)}
.btn-solid:active{transform:translateY(0)}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary)}
.btn-outline:hover{background:var(--primary-050);color:var(--primary-700)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-600);color:#fff;transform:translateY(-1px)}
.btn-block{width:100%}
.form-tip{font-size:12px;color:var(--text-3);margin:10px 0 0;line-height:1.6}

/* 空态 */
.empty-state{
  max-width:780px;text-align:center;padding:56px 20px;border:1px dashed var(--primary-100);
  border-radius:var(--r-card);background:var(--primary-050);
}
.empty-state i{font-size:34px;color:var(--primary);margin-bottom:14px;display:block}
.empty-state h2{font-size:20px;margin-bottom:8px}
.empty-state p{color:var(--text-2);font-size:14px}
.empty-state .btn-ng{margin-top:12px}

/* 相关推荐 */
.rec-section{padding:48px 0 24px}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.sec-head h2{font-size:30px;line-height:1.3}
.sec-head p{margin:6px 0 0;font-size:14px;color:var(--text-2)}
.sec-link{font-size:14px;font-weight:500;white-space:nowrap}
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rec-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--border);
  border-radius:var(--r-card);box-shadow:var(--shadow);overflow:hidden;
  transition:box-shadow .2s ease,transform .2s ease;
}
.rec-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.rec-thumb{aspect-ratio:4/3;overflow:hidden;background:var(--primary-050)}
.rec-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out}
.rec-card:hover .rec-thumb img{transform:scale(1.03)}
.rec-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.rec-body h3{font-size:18px;line-height:1.45;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-body p{font-size:14px;color:var(--text-2);margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3)}

/* 保障条 */
.assure-bar{background:var(--primary-050);margin-top:40px}
.assure-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:32px 0}
.assure-item{display:flex;gap:12px;align-items:flex-start}
.assure-item i{font-size:24px;color:var(--success);flex:none;margin-top:2px}
.assure-item strong{display:block;font-size:15px;font-weight:600;color:var(--text)}
.assure-item span{font-size:13px;color:var(--text-2);line-height:1.6}

/* CTA */
.cta-band{padding:56px 0 64px}
.cta-box{
  background:var(--primary);border-radius:20px;padding:36px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 14px 32px rgba(23,73,140,.18);
}
.cta-box h2{color:#fff;font-size:28px;line-height:1.35;margin-bottom:8px}
.cta-box p{color:rgba(255,255,255,.82);font-size:15px;margin:0}
.cta-actions{display:flex;gap:12px;flex:none}
.btn-white{background:#fff;color:var(--primary)}
.btn-white:hover{background:#F2F7FF;color:var(--primary-700);transform:translateY(-1px)}
.btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.btn-ghost:hover{background:rgba(255,255,255,.12);color:#fff}

/* 页脚 */
.ng-footer{background:var(--dark);color:rgba(255,255,255,.7);margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:32px;padding:56px 0 32px}
.f-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:600;font-size:16px;margin-bottom:14px}
.f-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.7);margin:0}
.foot-title{color:#fff;font-size:15px;font-weight:600;margin:0 0 14px}
.foot-list{display:flex;flex-direction:column;gap:10px;font-size:14px}
.foot-list a{color:rgba(255,255,255,.7)}
.foot-list a:hover{color:#fff}
.foot-list span{color:rgba(255,255,255,.66)}
.foot-bottom{border-top:1px solid rgba(255,255,255,.12);padding:18px 0 28px;text-align:center;font-size:13px;color:rgba(255,255,255,.55)}

/* 响应式 */
@media (max-width:1399.98px){
  :root{--sidebar:240px}
}
@media (min-width:1400px){
  :root{--sidebar:260px}
}
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr)}
  .article-panel{padding:30px 26px}
  .rec-grid{grid-template-columns:repeat(2,1fr)}
  .assure-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:991.98px){
  .sb-sidebar{display:none}
  .sb-topbar{display:flex}
  .sb-main{margin-left:0;padding-top:60px}
  .ng-wrap{padding:0 16px}
  .article-hero{padding:28px 0 32px}
  .article-title{font-size:28px}
  .sec-head h2{font-size:22px}
  .cta-box{flex-direction:column;text-align:center;padding:30px 22px}
  .cta-box h2{font-size:22px}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .btn-ng{width:100%}
}
@media (max-width:767.98px){
  .article-section{padding:36px 0 16px}
  .rec-grid{grid-template-columns:1fr}
  .assure-grid{grid-template-columns:1fr;padding:26px 0;gap:18px}
  .post-nav{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;padding:40px 0 24px}
  .crumb-current{max-width:38vw}
  .article-body h2{font-size:20px;margin-top:28px}
  .article-body h3{font-size:17px}
}
@media (max-width:575.98px){
  .article-title{font-size:24px}
  .article-panel{padding:24px 18px}
  .meta-row{gap:12px;font-size:13px}
  .article-body table{font-size:14px}
}

/* roulang page: category2 */
:root{
  --primary:#1F5AA8;
  --primary-700:#17498C;
  --primary-050:#EAF1FB;
  --primary-100:#D6E4F7;
  --accent:#F07A2E;
  --accent-700:#D9651F;
  --success:#2E9E6B;
  --bg:#F7F8FA;
  --card:#FFFFFF;
  --text:#17233A;
  --text-2:#5B6579;
  --text-3:#939CAC;
  --border:#E5E9F0;
  --dark:#14213A;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh-sm:0 2px 8px rgba(20,52,96,.06);
  --sh-lg:0 10px 28px rgba(20,52,96,.12);
  --sidebar-w:240px;
  --wrap:1280px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--text);
  background:var(--bg);
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--primary-700);}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid rgba(31,90,168,.35);outline-offset:2px;}

.ng-wrap{max-width:var(--wrap);margin:0 auto;padding:0 32px;}

/* ============ 左侧竖导航 ============ */
.sb-side{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:#fff;
  border-right:1px solid var(--border);
  display:flex;
  flex-direction:column;
  z-index:1040;
}
.sb-brand{
  height:72px;
  display:flex;
  align-items:center;
  gap:10px;
  padding:0 20px;
  border-bottom:1px solid var(--border);
  flex:0 0 auto;
}
.brand-mark{
  width:40px;height:40px;
  border-radius:12px;
  background:var(--primary);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:17px;
  font-weight:700;
  letter-spacing:.5px;
  flex:0 0 auto;
}
.brand-name{font-size:16px;font-weight:600;color:var(--text);}
.sb-nav{
  padding:14px 12px;
  display:flex;
  flex-direction:column;
  gap:4px;
  flex:1 1 auto;
  overflow-y:auto;
}
.sb-link{
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 12px;
  border-radius:10px;
  border-left:3px solid transparent;
  color:var(--text-2);
  font-size:15px;
  font-weight:500;
  transition:background .2s ease-out,color .2s ease-out;
}
.sb-link i{font-size:16px;width:18px;text-align:center;color:var(--text-3);transition:color .2s ease-out;}
.sb-link:hover{background:var(--primary-050);color:var(--primary);}
.sb-link:hover i{color:var(--primary);}
.sb-link.active{
  background:var(--primary-050);
  color:var(--primary);
  font-weight:600;
  border-left-color:var(--primary);
}
.sb-link.active i{color:var(--primary);}
.sb-sidefoot{
  flex:0 0 auto;
  padding:16px 20px 18px;
  border-top:1px solid var(--border);
  font-size:13px;
  color:var(--text-3);
}
.sb-sidefoot .side-phone{color:var(--text-2);font-weight:600;font-size:14px;display:block;margin-bottom:6px;}
.sb-sidefoot .side-note{display:block;line-height:1.7;}

/* 移动端顶栏 */
.sb-mobile{
  display:none;
  position:sticky;
  top:0;
  z-index:1050;
  height:60px;
  background:#fff;
  border-bottom:1px solid var(--border);
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
}
.sb-mobile .sb-brand{padding:0;border:0;height:auto;}
.sb-burger{
  width:44px;height:44px;
  border:1px solid var(--border);
  border-radius:10px;
  background:#fff;
  color:var(--primary);
  font-size:18px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.sb-burger:hover{background:var(--primary-050);}
.ng-drawer{width:290px !important;}
.ng-drawer .offcanvas-header{border-bottom:1px solid var(--border);padding:14px 16px;}
.ng-drawer .offcanvas-body{padding:14px 12px;}
.ng-drawer .sb-link{height:48px;}

/* ============ 主区 ============ */
.sb-main{margin-left:var(--sidebar-w);display:block;}

/* ============ 分类页头 ============ */
.cat-hero{
  position:relative;
  min-height:220px;
  display:flex;
  align-items:center;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.cat-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(20,33,58,.5);
}
.cat-hero-inner{position:relative;z-index:2;padding-top:38px;padding-bottom:38px;width:100%;}
.crumb{font-size:13px;color:rgba(255,255,255,.75);margin-bottom:10px;display:flex;flex-wrap:wrap;gap:6px;align-items:center;}
.crumb a{color:rgba(255,255,255,.8);}
.crumb a:hover{color:#fff;}
.crumb .sep{opacity:.6;}
.crumb .now{color:#fff;}
.cat-hero h1{
  font-size:40px;
  line-height:1.25;
  font-weight:700;
  color:#fff;
  letter-spacing:.5px;
}
.cat-hero .cat-sub{
  margin-top:12px;
  font-size:16px;
  color:rgba(255,255,255,.86);
  max-width:640px;
}

/* 子锚点条 */
.anchor-bar{
  position:sticky;
  top:0;
  z-index:1020;
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 8px rgba(20,52,96,.04);
}
.anchor-inner{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding-top:12px;
  padding-bottom:12px;
  scrollbar-width:thin;
}
.anchor-item{
  flex:0 0 auto;
  padding:9px 16px;
  border-radius:10px;
  font-size:14px;
  font-weight:500;
  color:var(--text-2);
  background:#fff;
  border:1px solid transparent;
  transition:all .2s ease-out;
  white-space:nowrap;
}
.anchor-item:hover{background:var(--primary-050);color:var(--primary);}
.anchor-item.active{background:var(--primary);color:#fff;font-weight:600;}

/* ============ 通用板块 ============ */
.section{padding:72px 0;}
.section-tight{padding:56px 0;}
.sec-head{margin-bottom:32px;max-width:760px;}
.sec-head h2{
  font-size:30px;
  line-height:1.3;
  font-weight:700;
  color:var(--text);
}
.sec-head p{margin-top:10px;font-size:15px;color:var(--text-2);}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--primary);
  background:var(--primary-050);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:14px;
}

/* ============ 主体布局：三列卡片 + 侧栏 ============ */
.cat-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 290px;
  gap:28px;
  align-items:start;
}
.spec-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
}
.card-spec{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-sm);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  transition:box-shadow .2s ease-out,border-color .2s ease-out;
}
.card-spec:hover{box-shadow:var(--sh-lg);border-color:var(--primary-100);}
.card-spec .thumb{aspect-ratio:4/3;overflow:hidden;background:var(--primary-050);}
.card-spec .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .2s ease-out;}
.card-spec:hover .thumb img{transform:scale(1.03);}
.card-spec .card-body{padding:20px 22px 0;display:flex;flex-direction:column;flex:1 1 auto;}
.card-spec h3{font-size:18px;font-weight:600;color:var(--text);}
.card-spec .card-desc{
  margin-top:8px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.75;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  min-height:49px;
}
.kv-list{margin-top:14px;border-top:1px solid var(--border);}
.kv{
  display:flex;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  padding:7px 0;
  border-bottom:1px dashed var(--border);
}
.kv .k{color:var(--text-3);}
.kv .v{color:var(--text);font-weight:600;}
.chip-row{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;}
.chip{
  display:inline-block;
  font-size:12px;
  padding:3px 10px;
  border-radius:999px;
  background:var(--primary-050);
  color:var(--primary);
  font-weight:500;
}
.chip.accent{background:#FDEEE3;color:var(--accent-700);}
.card-link{
  margin-top:auto;
  padding:16px 22px 20px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.card-link i{font-size:12px;transition:transform .2s ease-out;}
.card-spec:hover .card-link i{transform:translateX(3px);}

/* ============ 侧栏 ============ */
.side-col{display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--card);
  border:1px solid var(--border);
  border-radius:var(--r-card);
  box-shadow:var(--sh-sm);
  padding:22px;
}
.side-card h3{font-size:17px;font-weight:600;margin-bottom:6px;}
.side-card .side-tip{font-size:13px;color:var(--text-3);margin-bottom:16px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:6px;}
.field .form-control,
.field .form-select{
  height:44px;
  border-radius:10px;
  border:1px solid var(--border);
  font-size:15px;
  color:var(--text);
  box-shadow:none;
}
.field .form-control::placeholder{color:var(--text-3);}
.field .form-control:focus,
.field .form-select:focus{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(31,90,168,.12);
}
.btn-ng{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:46px;
  padding:0 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .2s ease-out,color .2s ease-out,transform .2s ease-out,border-color .2s ease-out;
  text-align:center;
}
.btn-ng-primary{background:var(--primary);color:#fff;}
.btn-ng-primary:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px);}
.btn-ng-primary:active{transform:translateY(0);}
.btn-ng-ghost{background:transparent;color:var(--primary);border-color:var(--primary-100);}
.btn-ng-ghost:hover{background:var(--primary-050);color:var(--primary-700);border-color:var(--primary);}
.btn-ng-accent{background:var(--accent);color:#fff;}
.btn-ng-accent:hover{background:var(--accent-700);color:#fff;transform:translateY(-1px);}
.btn-ng-white{background:#fff;color:var(--primary);}
.btn-ng-white:hover{background:var(--primary-050);color:var(--primary-700);transform:translateY(-1px);}
.btn-ng-block{width:100%;}
.side-hot li{border-bottom:1px dashed var(--border);}
.side-hot li:last-child{border-bottom:0;}
.side-hot a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding:11px 0;
  font-size:14px;
  color:var(--text-2);
}
.side-hot a:hover{color:var(--primary);}
.side-hot a i{font-size:12px;color:var(--text-3);}
.side-contact{background:var(--primary-050);border-color:var(--primary-100);}
.side-contact .contact-line{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--text-2);
  padding:7px 0;
}
.side-contact .contact-line i{color:var(--primary);width:16px;text-align:center;}
.side-contact .contact-line strong{color:var(--text);font-weight:600;}

/* ============ 数据条 ============ */
.stat-row{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
  margin-bottom:28px;
}
.stat-item{
  background:#fff;
  border:1px solid var(--border);
  border-radius:14px;
  box-shadow:var(--sh-sm);
  padding:18px 20px;
}
.stat-item .num{font-size:24px;font-weight:700;color:var(--primary);line-height:1.3;}
.stat-item .lbl{font-size:13px;color:var(--text-2);margin-top:4px;}

/* ============ 保障条 ============ */
.guard{
  background:var(--primary-050);
  border-radius:20px;
  padding:30px 34px;
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:22px;
}
.guard-item{display:flex;gap:12px;align-items:flex-start;}
.guard-item i{font-size:22px;color:var(--success);line-height:1.4;}
.guard-item .g-title{font-size:15px;font-weight:600;color:var(--text);}
.guard-item .g-desc{font-size:13px;color:var(--text-2);line-height:1.6;margin-top:2px;}

/* ============ FAQ ============ */
.faq-list{max-width:900px;}
.faq-item{
  background:#fff;
  border:1px solid var(--border);
  border-radius:14px;
  margin-bottom:12px;
  box-shadow:var(--sh-sm);
  overflow:hidden;
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:18px 22px;
  font-size:16px;
  font-weight:600;
  color:var(--text);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  transition:color .2s ease-out;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  font-size:22px;
  font-weight:400;
  color:var(--text-3);
  line-height:1;
  flex:0 0 auto;
}
.faq-item summary:hover{color:var(--primary);}
.faq-item[open] summary{color:var(--primary);}
.faq-item[open] summary::after{content:"−";color:var(--primary);}
.faq-body{
  padding:0 22px 20px;
  font-size:15px;
  color:var(--text-2);
  line-height:1.8;
}

/* ============ CTA ============ */
.cta-block{
  background:var(--primary);
  border-radius:20px;
  padding:46px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  color:#fff;
}
.cta-block h2{font-size:28px;line-height:1.35;font-weight:700;color:#fff;}
.cta-block p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.85);max-width:640px;}
.cta-actions{display:flex;gap:12px;flex:0 0 auto;}

/* ============ 页脚 ============ */
.ng-footer{
  background:var(--dark);
  color:rgba(255,255,255,.7);
  margin-left:var(--sidebar-w);
  padding:56px 0 24px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:32px;
}
.f-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:17px;
  font-weight:600;
  margin-bottom:14px;
}
.f-brand .brand-mark{width:36px;height:36px;border-radius:10px;font-size:15px;}
.f-about{font-size:14px;line-height:1.8;color:rgba(255,255,255,.65);}
.foot-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px;}
.foot-list{display:flex;flex-direction:column;gap:10px;font-size:14px;}
.foot-list a{color:rgba(255,255,255,.7);}
.foot-list a:hover{color:#fff;}
.foot-list span{color:rgba(255,255,255,.65);line-height:1.7;}
.foot-bottom{
  margin-top:36px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (min-width:1400px){
  :root{--sidebar-w:260px;--wrap:1280px;}
}
@media (min-width:1440px){
  .spec-grid{grid-template-columns:repeat(3,minmax(0,1fr));}
}
@media (max-width:1199.98px){
  .cat-layout{grid-template-columns:1fr;}
  .side-col{flex-direction:row;flex-wrap:wrap;}
  .side-col .side-card{flex:1 1 280px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
}
@media (max-width:991.98px){
  .sb-side{display:none;}
  .sb-mobile{display:flex;}
  .sb-main{margin-left:0;}
  .ng-footer{margin-left:0;}
  .anchor-bar{top:60px;}
  .cat-hero{min-height:200px;}
  .cat-hero h1{font-size:30px;}
  .section{padding:60px 0;}
  .section-tight{padding:44px 0;}
  .sec-head h2{font-size:24px;}
  .cta-block{flex-direction:column;align-items:flex-start;padding:36px 30px;}
  .cta-block h2{font-size:23px;}
  .guard{grid-template-columns:repeat(2,minmax(0,1fr));padding:26px 24px;}
  .stat-row{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767.98px){
  .ng-wrap{padding:0 16px;}
  .cat-hero h1{font-size:28px;}
  .cat-hero .cat-sub{font-size:15px;}
  .spec-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-grid > div:last-child{grid-column:auto;}
}
@media (max-width:575.98px){
  .stat-row{grid-template-columns:1fr;}
  .guard{grid-template-columns:1fr;}
  .cta-block{padding:30px 22px;}
  .cta-actions{width:100%;flex-direction:column;}
  .cta-actions .btn-ng{width:100%;}
  .sec-head h2{font-size:22px;}
}

/* roulang page: category3 */
:root{
  --primary:#1F5AA8;
  --primary-700:#17498C;
  --primary-050:#EAF1FB;
  --primary-100:#D6E4F7;
  --accent:#F07A2E;
  --accent-700:#D9651F;
  --success:#2E9E6B;
  --page:#F7F8FA;
  --card:#FFFFFF;
  --ink:#17233A;
  --ink-2:#5B6579;
  --ink-3:#939CAC;
  --line:#E5E9F0;
  --dark:#14213A;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh:0 2px 8px rgba(20,52,96,.06);
  --sh-hover:0 10px 28px rgba(20,52,96,.12);
  --side-w:240px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--page);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--primary-700);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding-left:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid rgba(31,90,168,.45);outline-offset:2px;}
::selection{background:var(--primary-100);color:var(--primary-700);}

/* ============ 布局容器 ============ */
.ng-wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 32px;}
.ng-main{margin-left:var(--side-w);min-height:100vh;display:flex;flex-direction:column;}
.ng-main > .page-body{flex:1 1 auto;}

/* ============ 左侧竖导航 ============ */
.sb-side{
  position:fixed;left:0;top:0;bottom:0;width:var(--side-w);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;z-index:1040;
  transition:transform .25s ease-out;
}
.sb-brand{
  display:flex;align-items:center;gap:10px;
  height:72px;padding:0 20px;border-bottom:1px solid var(--line);
  color:var(--ink);text-decoration:none;flex:0 0 auto;
}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:linear-gradient(135deg,var(--primary) 0%,#2E7BC9 100%);
  color:#fff;font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;letter-spacing:.5px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text b{font-size:15px;font-weight:700;color:var(--ink);}
.brand-text i{font-style:normal;font-size:12px;color:var(--ink-3);letter-spacing:.4px;}
.sb-nav{padding:16px 12px;display:flex;flex-direction:column;gap:4px;flex:1 1 auto;overflow-y:auto;}
.sb-link{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  color:var(--ink-2);font-size:15px;font-weight:500;
  transition:background .18s ease-out,color .18s ease-out;
}
.sb-link i{width:18px;text-align:center;font-size:15px;color:var(--ink-3);transition:color .18s ease-out;}
.sb-link:hover{background:var(--primary-050);color:var(--primary);}
.sb-link:hover i{color:var(--primary);}
.sb-link.active{background:var(--primary-050);color:var(--primary);font-weight:600;}
.sb-link.active i{color:var(--primary);}
.sb-link.active::before{
  content:"";position:absolute;left:-12px;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--primary);
}
.sb-foot{padding:16px 20px 24px;border-top:1px solid var(--line);flex:0 0 auto;}
.sb-foot p{font-size:13px;color:var(--ink-3);margin-bottom:12px;line-height:1.6;}
.sb-cta{
  display:flex;align-items:center;justify-content:center;gap:8px;
  height:44px;border-radius:var(--r-btn);background:var(--primary);color:#fff;
  font-size:15px;font-weight:600;
  transition:background .2s ease-out,transform .2s ease-out;
}
.sb-cta:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px);}

/* ============ 移动端顶栏 ============ */
.sb-topbar{display:none;}
.nav-mask{
  position:fixed;inset:0;background:rgba(20,33,58,.45);
  opacity:0;visibility:hidden;transition:.25s ease-out;z-index:1035;
}
.nav-mask.show{opacity:1;visibility:visible;}

/* ============ 分类页头 ============ */
.cat-head{
  position:relative;min-height:220px;
  display:flex;align-items:flex-end;
  background-size:cover;background-position:center;
  padding:44px 0 34px;overflow:hidden;
}
.cat-head::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(20,33,58,.35) 0%,rgba(20,33,58,.58) 100%);
}
.cat-head::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(120,180,255,.35) 0%,rgba(120,180,255,0) 70%);
  pointer-events:none;
}
.cat-head-inner{position:relative;z-index:2;width:100%;}
.crumb{font-size:13px;color:rgba(255,255,255,.75);margin-bottom:14px;line-height:1.6;}
.crumb a{color:rgba(255,255,255,.75);}
.crumb a:hover{color:#fff;}
.crumb span.sep{margin:0 6px;opacity:.7;}
.crumb em{font-style:normal;color:#fff;}
.cat-head h1{
  font-size:40px;line-height:1.25;font-weight:700;color:#fff;letter-spacing:.5px;
}
.cat-sub{
  margin-top:12px;font-size:15px;color:rgba(255,255,255,.86);max-width:660px;
}

/* ============ 子锚点条 ============ */
.subnav{background:#fff;border-bottom:1px solid var(--line);position:sticky;top:0;z-index:1020;}
.subnav-inner{display:flex;gap:10px;overflow-x:auto;padding:14px 0;scrollbar-width:none;}
.subnav-inner::-webkit-scrollbar{display:none;}
.subnav a{
  white-space:nowrap;padding:8px 18px;border-radius:999px;
  border:1px solid var(--line);color:var(--ink-2);font-size:14px;font-weight:500;
  transition:all .18s ease-out;
}
.subnav a:hover{border-color:var(--primary-100);background:var(--primary-050);color:var(--primary);}
.subnav a.active{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600;}

/* ============ 板块通用 ============ */
.section{padding:88px 0;}
.section.tight{padding-top:56px;}
.sec-head{max-width:820px;margin-bottom:40px;}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:5px 14px;border-radius:999px;background:var(--primary-050);color:var(--primary);
  font-size:13px;font-weight:600;letter-spacing:.5px;margin-bottom:16px;
}
.sec-head h2{font-size:30px;line-height:1.3;font-weight:700;color:var(--ink);}
.sec-head p{margin-top:14px;font-size:16px;color:var(--ink-2);line-height:1.8;}

/* ============ 数据条 ============ */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.stat{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh);transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.stat:hover{box-shadow:var(--sh-hover);transform:translateY(-2px);}
.stat b{display:block;font-size:28px;line-height:1.2;font-weight:700;color:var(--primary);letter-spacing:.5px;}
.stat span{display:block;margin-top:8px;font-size:14px;color:var(--ink-2);}
.stat i{font-size:16px;color:var(--primary-100);margin-bottom:10px;display:block;}

/* ============ 横向大列表卡 ============ */
.ind-list{display:flex;flex-direction:column;gap:26px;}
.ind-card{
  display:grid;grid-template-columns:380px 1fr;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh);
  transition:box-shadow .22s ease-out,transform .22s ease-out;
}
.ind-card:hover{box-shadow:var(--sh-hover);transform:translateY(-2px);}
.ind-media{position:relative;min-height:280px;background:var(--primary-050);overflow:hidden;}
.ind-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s ease-out;}
.ind-card:hover .ind-media img{transform:scale(1.03);}
.ind-media .ind-badge{
  position:absolute;left:16px;top:16px;
  padding:5px 13px;border-radius:999px;background:rgba(255,255,255,.94);
  color:var(--primary);font-size:13px;font-weight:600;letter-spacing:.3px;
}
.ind-body{padding:28px 30px;display:flex;flex-direction:column;justify-content:center;}
.ind-body h3{font-size:20px;font-weight:700;color:var(--ink);line-height:1.4;}
.ind-body > p{margin-top:12px;font-size:15px;color:var(--ink-2);line-height:1.85;}
.ind-points{margin-top:18px;display:flex;flex-direction:column;gap:9px;}
.ind-points li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.7;}
.ind-points li i{color:var(--success);font-size:14px;margin-top:5px;flex:0 0 auto;}
.ind-points li b{color:var(--ink);font-weight:600;}
.ind-actions{margin-top:22px;display:flex;align-items:center;gap:14px;flex-wrap:wrap;}

/* ============ 按钮 ============ */
.btn-ng{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:var(--primary);color:#fff;font-size:15px;font-weight:600;
  border:1px solid var(--primary);cursor:pointer;
  transition:background .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.btn-ng:hover{background:var(--primary-700);border-color:var(--primary-700);color:#fff;transform:translateY(-1px);}
.btn-ng:active{transform:translateY(0);}
.btn-ng:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(31,90,168,.28);}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:transparent;color:var(--primary);font-size:15px;font-weight:600;
  border:1px solid var(--primary);cursor:pointer;
  transition:background .2s ease-out,transform .2s ease-out;
}
.btn-outline:hover{background:var(--primary-050);color:var(--primary-700);transform:translateY(-1px);}
.btn-accent{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  background:var(--accent);color:#fff;font-size:15px;font-weight:600;
  border:1px solid var(--accent);cursor:pointer;
  transition:background .2s ease-out,transform .2s ease-out;
}
.btn-accent:hover{background:var(--accent-700);border-color:var(--accent-700);color:#fff;transform:translateY(-1px);}
.link-more{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px;}
.link-more i{font-size:12px;transition:transform .2s ease-out;}
.link-more:hover i{transform:translateX(3px);}

/* ============ 适配流程 ============ */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.step{
  position:relative;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-card);padding:26px 24px;box-shadow:var(--sh);
  transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.step:hover{box-shadow:var(--sh-hover);transform:translateY(-2px);}
.step .num{
  width:38px;height:38px;border-radius:999px;background:var(--primary-050);
  color:var(--primary);font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.step h3{font-size:17px;font-weight:700;color:var(--ink);margin-bottom:10px;}
.step p{font-size:14px;color:var(--ink-2);line-height:1.8;}

/* ============ 现场反馈 ============ */
.voice-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.voice{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px 24px;box-shadow:var(--sh);display:flex;flex-direction:column;
  transition:box-shadow .2s ease-out,transform .2s ease-out;
}
.voice:hover{box-shadow:var(--sh-hover);transform:translateY(-2px);}
.voice .stars{color:var(--accent);font-size:13px;letter-spacing:2px;margin-bottom:14px;}
.voice p{font-size:15px;color:var(--ink-2);line-height:1.85;flex:1 1 auto;}
.voice-from{margin-top:20px;display:flex;align-items:center;gap:12px;}
.avatar{
  width:40px;height:40px;flex:0 0 40px;border-radius:999px;
  background:var(--primary-050);color:var(--primary);font-weight:700;font-size:14px;
  display:flex;align-items:center;justify-content:center;
}
.voice-from b{display:block;font-size:14px;color:var(--ink);font-weight:600;line-height:1.4;}
.voice-from span{display:block;font-size:13px;color:var(--ink-3);line-height:1.4;}

/* ============ FAQ ============ */
.ng-acc .accordion-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh);
}
.ng-acc .accordion-item:last-child{margin-bottom:0;}
.ng-acc .accordion-button{
  background:#fff;color:var(--ink);font-size:17px;font-weight:600;
  padding:18px 22px;box-shadow:none;border-radius:var(--r-card);line-height:1.6;
}
.ng-acc .accordion-button:not(.collapsed){background:var(--primary-050);color:var(--primary);}
.ng-acc .accordion-button:focus{box-shadow:0 0 0 3px rgba(31,90,168,.18);border-color:var(--primary);}
.ng-acc .accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;
  font-size:22px;font-weight:400;color:var(--primary);line-height:1;
  display:flex;align-items:center;justify-content:center;transform:none;margin-left:14px;
}
.ng-acc .accordion-button:not(.collapsed)::after{content:"−";transform:none;}
.ng-acc .accordion-body{
  padding:4px 22px 22px;font-size:15px;color:var(--ink-2);line-height:1.85;
}

/* ============ 保障条 ============ */
.guarantee{background:var(--primary-050);border-top:1px solid var(--primary-100);border-bottom:1px solid var(--primary-100);}
.guarantee-inner{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;padding:40px 0;}
.g-item{display:flex;gap:14px;align-items:flex-start;}
.g-item i{font-size:22px;color:var(--success);margin-top:4px;flex:0 0 auto;}
.g-item b{display:block;font-size:15px;font-weight:600;color:var(--ink);line-height:1.5;}
.g-item span{display:block;font-size:13px;color:var(--ink-2);line-height:1.6;margin-top:4px;}

/* ============ CTA ============ */
.cta-block{
  background:linear-gradient(135deg,var(--primary) 0%,#2A6CBE 100%);
  border-radius:20px;padding:44px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 14px 34px rgba(20,52,96,.16);
}
.cta-block h2{font-size:28px;line-height:1.3;font-weight:700;color:#fff;}
.cta-block p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.86);max-width:640px;line-height:1.8;}
.btn-white{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-btn);
  background:#fff;color:var(--primary);font-size:15px;font-weight:700;
  border:1px solid #fff;white-space:nowrap;
  transition:background .2s ease-out,color .2s ease-out,transform .2s ease-out;
}
.btn-white:hover{background:var(--primary-050);color:var(--primary-700);transform:translateY(-1px);}

/* ============ 页脚 ============ */
.ng-footer{background:var(--dark);color:rgba(255,255,255,.7);padding:64px 0 28px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.9fr 1fr 1fr 1.2fr;gap:36px;}
.f-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px;}
.f-brand .brand-mark{background:linear-gradient(135deg,var(--primary) 0%,#3B84D6 100%);}
.f-about{font-size:14px;line-height:1.9;color:rgba(255,255,255,.68);}
.foot-title{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.foot-list{display:flex;flex-direction:column;gap:11px;font-size:14px;color:rgba(255,255,255,.68);line-height:1.7;}
.foot-list a{color:rgba(255,255,255,.68);}
.foot-list a:hover{color:#fff;}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:22px;
  text-align:center;font-size:13px;color:rgba(255,255,255,.55);line-height:1.7;
}

/* ============ 响应式 ============ */
@media (min-width:1400px){
  :root{--side-w:260px;}
}
@media (max-width:1199.98px){
  .stats{grid-template-columns:repeat(2,1fr);}
  .flow{grid-template-columns:repeat(2,1fr);}
  .voice-grid{grid-template-columns:1fr;}
  .ind-card{grid-template-columns:320px 1fr;}
  .ind-media{min-height:240px;}
}
@media (max-width:991.98px){
  .sb-side{transform:translateX(-100%);box-shadow:0 20px 40px rgba(20,52,96,.16);}
  .sb-side.open{transform:translateX(0);}
  .ng-main{margin-left:0;padding-top:60px;}
  .sb-topbar{
    display:flex;position:fixed;top:0;left:0;right:0;height:60px;
    background:#fff;border-bottom:1px solid var(--line);z-index:1045;
    align-items:center;justify-content:space-between;padding:0 16px;
  }
  .brand-mini{display:flex;align-items:center;gap:9px;color:var(--ink);font-size:15px;font-weight:700;}
  .brand-mini .brand-mark{width:32px;height:32px;flex:0 0 32px;border-radius:9px;font-size:13px;}
  .menu-btn{
    width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;
    color:var(--ink);font-size:17px;display:flex;align-items:center;justify-content:center;
  }
  .menu-btn:hover{background:var(--primary-050);color:var(--primary);border-color:var(--primary-100);}
  .section{padding:64px 0;}
  .section.tight{padding-top:44px;}
  .cat-head h1{font-size:32px;}
  .cat-head{min-height:200px;padding:34px 0 28px;}
  .sec-head h2{font-size:25px;}
  .guarantee-inner{grid-template-columns:repeat(2,1fr);gap:22px;padding:34px 0;}
  .cta-block{flex-direction:column;align-items:flex-start;padding:36px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767.98px){
  .ng-wrap{padding:0 16px;}
  .section{padding:48px 0;}
  .section.tight{padding-top:36px;}
  .cat-head h1{font-size:28px;}
  .cat-sub{font-size:14px;}
  .ind-card{grid-template-columns:1fr;}
  .ind-media{min-height:200px;aspect-ratio:16/10;}
  .ind-body{padding:22px 20px;}
  .stats{grid-template-columns:repeat(2,1fr);gap:14px;}
  .stat{padding:18px;}
  .stat b{font-size:23px;}
  .flow{grid-template-columns:1fr;}
  .voice-grid{grid-template-columns:1fr;}
  .guarantee-inner{grid-template-columns:1fr 1fr;gap:20px;}
  .cta-block{padding:30px 22px;border-radius:16px;}
  .cta-block h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .sec-head h2{font-size:22px;}
  .ng-acc .accordion-button{font-size:16px;padding:16px 18px;}
  .ng-acc .accordion-body{padding:2px 18px 18px;}
}
@media (max-width:519.98px){
  .stats{grid-template-columns:1fr;}
  .guarantee-inner{grid-template-columns:1fr;}
  .subnav a{padding:7px 14px;font-size:13px;}
}

/* roulang page: category4 */
:root{
  --primary:#1F5AA8;
  --primary-700:#17498C;
  --primary-050:#EAF1FB;
  --primary-100:#D6E4F7;
  --accent:#F07A2E;
  --accent-700:#D9651F;
  --success:#2E9E6B;
  --bg:#F7F8FA;
  --card:#FFFFFF;
  --ink:#17233A;
  --ink-2:#5B6579;
  --ink-3:#939CAC;
  --line:#E5E9F0;
  --dark:#14213A;
  --r-card:16px;
  --r-btn:10px;
  --r-img:12px;
  --sh:0 2px 8px rgba(20,52,96,.06);
  --sh-hover:0 10px 28px rgba(20,52,96,.12);
  --sb-w:240px;
  --t:200ms ease-out;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;line-height:1.8;color:var(--ink);background:var(--bg);
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--t),background-color var(--t),border-color var(--t);}
a:hover{color:var(--primary-700);}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid rgba(31,90,168,.35);outline-offset:2px;}
.skip{position:absolute;left:-9999px;top:0;background:#fff;padding:8px 14px;border-radius:8px;z-index:2000;}
.skip:focus{left:12px;top:12px;}

/* 容器 */
.ng-wrap{width:100%;max-width:1280px;margin:0 auto;padding:0 32px;}

/* 侧栏 */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--sb-w);
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;z-index:1040;
}
.sb-brand{
  height:72px;display:flex;align-items:center;gap:10px;
  padding:0 20px;border-bottom:1px solid var(--line);flex:0 0 auto;
}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  background:var(--primary);color:#fff;font-weight:700;font-size:15px;letter-spacing:.5px;
}
.brand-text{font-size:16px;font-weight:700;color:var(--ink);}
.sb-nav{display:flex;flex-direction:column;gap:4px;padding:14px 12px 0;flex:1 1 auto;overflow-y:auto;}
.sb-link{
  display:flex;align-items:center;gap:10px;height:44px;padding:0 12px;
  border-radius:10px;color:var(--ink-2);font-size:15px;font-weight:500;
  border-left:3px solid transparent;
}
.sb-link i{width:18px;text-align:center;font-size:15px;color:var(--ink-3);transition:color var(--t);}
.sb-link:hover{background:var(--primary-050);color:var(--primary);}
.sb-link:hover i{color:var(--primary);}
.sb-link.active{background:var(--primary-050);color:var(--primary);border-left-color:var(--primary);font-weight:600;}
.sb-link.active i{color:var(--primary);}
.sb-foot{padding:16px 16px 20px;border-top:1px solid var(--line);flex:0 0 auto;}
.sb-foot-title{font-size:13px;color:var(--ink-3);margin-bottom:8px;}
.sb-btn{
  display:flex;align-items:center;justify-content:center;gap:6px;
  height:44px;border-radius:var(--r-btn);background:var(--primary);color:#fff;
  font-weight:600;font-size:15px;transition:background-color var(--t),transform var(--t);
}
.sb-btn:hover{background:var(--primary-700);color:#fff;transform:translateY(-1px);}
.sb-note{margin-top:10px;font-size:13px;color:var(--ink-3);line-height:1.6;}

/* 移动顶栏 */
.mobile-bar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;
  background:#fff;border-bottom:1px solid var(--line);z-index:1050;
  align-items:center;justify-content:space-between;padding:0 16px;
}
.m-brand{display:flex;align-items:center;gap:8px;font-weight:700;font-size:15px;color:var(--ink);}
.m-brand .brand-mark{width:30px;height:30px;font-size:14px;border-radius:9px;}
.m-toggle{
  width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;
  color:var(--primary);font-size:17px;display:flex;align-items:center;justify-content:center;
}
.m-toggle:hover{background:var(--primary-050);}
.m-drawer{width:290px;}
.m-drawer-title{display:flex;align-items:center;gap:8px;font-weight:700;font-size:15px;color:var(--ink);}
.m-drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:14px 18px;}
.m-drawer .offcanvas-body{padding:14px;}
.m-link{
  display:flex;align-items:center;gap:10px;min-height:48px;padding:0 12px;border-radius:10px;
  color:var(--ink-2);font-size:15px;font-weight:500;margin-bottom:6px;
}
.m-link i{width:18px;text-align:center;color:var(--ink-3);}
.m-link:hover{background:var(--primary-050);color:var(--primary);}
.m-link.active{background:var(--primary-050);color:var(--primary);font-weight:600;}
.m-link.active i{color:var(--primary);}

/* 主体 */
.main-wrap{margin-left:var(--sb-w);}

/* 页头 */
.page-head{position:relative;height:220px;overflow:hidden;display:flex;align-items:center;}
.ph-bg{position:absolute;inset:0;background-size:cover;background-position:center;transform:scale(1.02);}
.ph-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(20,52,96,.72) 0%,rgba(20,52,96,.42) 70%);}
.ph-inner{position:relative;z-index:2;width:100%;}
.crumb{font-size:13px;color:rgba(255,255,255,.8);display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:10px;}
.crumb a{color:rgba(255,255,255,.8);}
.crumb a:hover{color:#fff;}
.crumb .sep{opacity:.6;}
.crumb .cur{color:#fff;font-weight:500;max-width:340px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.page-head h1{
  font-size:34px;line-height:1.25;font-weight:700;color:#fff;letter-spacing:.5px;
}
.ph-sub{margin-top:10px;font-size:15px;color:rgba(255,255,255,.88);max-width:680px;}

/* 锚点条 */
.anchor-bar{
  position:sticky;top:0;z-index:30;background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 2px 8px rgba(20,52,96,.04);
}
.anchor-inner{display:flex;gap:10px;overflow-x:auto;padding:12px 0;scrollbar-width:none;}
.anchor-inner::-webkit-scrollbar{display:none;}
.ab-item{
  flex:0 0 auto;height:38px;display:inline-flex;align-items:center;padding:0 18px;
  border-radius:999px;border:1px solid var(--line);color:var(--ink-2);
  font-size:14px;font-weight:500;white-space:nowrap;
}
.ab-item:hover{border-color:var(--primary-100);background:var(--primary-050);color:var(--primary);}
.ab-item.active{background:var(--primary);border-color:var(--primary);color:#fff;}
.ab-item.active:hover{background:var(--primary-700);color:#fff;}

/* 板块 */
.sec{padding:76px 0;}
.sec-alt{background:#fff;}
.sec-head{margin-bottom:34px;max-width:760px;}
.sec-eyebrow{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  color:var(--primary);background:var(--primary-050);border-radius:999px;padding:5px 12px;margin-bottom:12px;
}
.sec-head h2{font-size:29px;line-height:1.3;font-weight:700;color:var(--ink);}
.sec-head p{margin-top:12px;color:var(--ink-2);font-size:15.5px;}

/* 表格 */
.table-scroll{
  overflow-x:auto;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh);
}
table.spec{width:100%;min-width:820px;border-collapse:collapse;font-size:15px;}
table.spec caption{caption-side:top;text-align:left;padding:18px 22px 0;font-size:13px;color:var(--ink-3);}
table.spec th{
  background:var(--primary-050);color:var(--primary-700);font-weight:600;font-size:14px;
  text-align:left;padding:14px 22px;white-space:nowrap;
}
table.spec td{padding:16px 22px;border-top:1px solid var(--line);color:var(--ink-2);vertical-align:top;}
table.spec td:first-child{color:var(--ink);font-weight:600;white-space:nowrap;}
table.spec tbody tr:hover{background:#FBFCFE;}
.pill{
  display:inline-block;padding:2px 10px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:var(--primary-050);color:var(--primary);
}
.pill-accent{background:#FDF0E6;color:var(--accent-700);}
.pill-ok{background:#E8F5EF;color:var(--success);}

/* 卡片 */
.svc-card{
  display:flex;flex-direction:column;height:100%;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh);overflow:hidden;
  transition:box-shadow var(--t),border-color var(--t);
}
.svc-card:hover{box-shadow:var(--sh-hover);border-color:var(--primary-100);}
.svc-thumb{position:relative;aspect-ratio:4/3;overflow:hidden;background:var(--primary-050);}
.svc-thumb img{width:100%;height:100%;object-fit:cover;transition:transform var(--t);}
.svc-card:hover .svc-thumb img{transform:scale(1.03);}
.svc-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.svc-body h3{font-size:19px;font-weight:600;color:var(--ink);margin-bottom:10px;}
.svc-body p{font-size:14.5px;color:var(--ink-2);flex:1 1 auto;}
.svc-meta{
  margin-top:16px;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
}
.svc-meta span{font-size:13px;color:var(--ink-3);}
.svc-meta a{font-size:14px;font-weight:600;color:var(--primary);}
.svc-meta a i{margin-left:4px;font-size:12px;}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.flow li{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px 22px;box-shadow:var(--sh);
}
.flow li::after{
  content:"";position:absolute;right:-12px;top:44px;width:24px;height:1px;background:var(--primary-100);
}
.flow li:last-child::after{display:none;}
.flow-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;background:var(--primary-050);
  color:var(--primary);font-weight:700;font-size:15px;margin-bottom:14px;
}
.flow h3{font-size:18px;font-weight:600;color:var(--ink);margin-bottom:8px;}
.flow p{font-size:14.5px;color:var(--ink-2);}

/* 场景标签 */
.scene-box{
  margin-top:26px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh);
}
.scene-box h3{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:14px;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:999px;
  background:var(--primary-050);color:var(--primary-700);font-size:14px;font-weight:500;
  border:1px solid var(--primary-100);
}
.tag i{font-size:12px;}

/* FAQ */
.faq .accordion-item{
  border:1px solid var(--line);border-radius:14px;background:#fff;
  box-shadow:var(--sh);margin-bottom:12px;overflow:hidden;
}
.faq .accordion-button{
  font-size:16px;font-weight:600;color:var(--ink);background:#fff;
  padding:18px 22px;box-shadow:none!important;line-height:1.6;
}
.faq .accordion-button:not(.collapsed){color:var(--primary);background:#fff;}
.faq .accordion-button::after{
  content:"+";background-image:none!important;width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:400;color:var(--primary);margin-left:14px;
}
.faq .accordion-button:not(.collapsed)::after{content:"−";transform:none;}
.faq .accordion-body{padding:0 22px 20px;color:var(--ink-2);font-size:15px;}

/* 保障条 */
.guard{background:var(--primary-050);padding:44px 0;}
.guard-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;}
.guard-item{display:flex;gap:12px;align-items:flex-start;}
.guard-item i{font-size:22px;color:var(--success);margin-top:4px;}
.guard-item strong{display:block;font-size:15px;font-weight:600;color:var(--ink);}
.guard-item span{font-size:13px;color:var(--ink-2);}

/* CTA */
.cta-box{
  background:var(--primary);border-radius:20px;padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  box-shadow:0 12px 32px rgba(20,52,96,.14);
}
.cta-box h2{font-size:26px;font-weight:700;color:#fff;line-height:1.35;}
.cta-box p{margin-top:10px;font-size:15px;color:rgba(255,255,255,.86);max-width:640px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}
.btn-solid{
  display:inline-flex;align-items:center;gap:8px;height:48px;padding:0 24px;
  border-radius:var(--r-btn);font-weight:600;font-size:15px;border:1px solid transparent;
  transition:background-color var(--t),transform var(--t),color var(--t);
}
.btn-white{background:#fff;color:var(--primary);}
.btn-white:hover{background:#F2F6FC;color:var(--primary-700);transform:translateY(-1px);}
.btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-line:hover{background:rgba(255,255,255,.14);color:#fff;transform:translateY(-1px);}

/* 页脚 */
.ng-footer{background:var(--dark);color:rgba(255,255,255,.72);padding:60px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:42px;}
.f-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.f-brand .brand-mark{background:var(--primary);}
.f-brand span:last-child{font-size:16px;font-weight:700;color:#fff;}
.f-about{line-height:1.85;color:rgba(255,255,255,.68);font-size:14px;}
.foot-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.foot-list{display:flex;flex-direction:column;gap:10px;}
.foot-list a{color:rgba(255,255,255,.68);font-size:14px;}
.foot-list a:hover{color:#fff;}
.foot-list span{color:rgba(255,255,255,.68);font-size:14px;line-height:1.7;}
.foot-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  text-align:center;font-size:13px;color:rgba(255,255,255,.5);
}

/* 响应式 */
@media (min-width:1400px){
  :root{--sb-w:260px;}
}
@media (max-width:1199px){
  .flow{grid-template-columns:repeat(2,1fr);}
  .flow li::after{display:none;}
}
@media (max-width:991px){
  .sidebar{display:none;}
  .mobile-bar{display:flex;}
  .main-wrap{margin-left:0;padding-top:60px;}
  .ng-wrap{padding:0 20px;}
  .sec{padding:56px 0;}
  .page-head{height:200px;}
  .page-head h1{font-size:27px;}
  .ph-sub{font-size:14px;}
  .crumb .cur{max-width:200px;}
  .sec-head h2{font-size:23px;}
  .guard-grid{grid-template-columns:repeat(2,1fr);gap:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-box{flex-direction:column;align-items:flex-start;padding:32px 26px;}
  .cta-box h2{font-size:22px;}
  .anchor-bar{top:60px;}
}
@media (max-width:767px){
  .flow{grid-template-columns:1fr;}
  .cta-actions{width:100%;}
  .btn-solid{flex:1 1 auto;justify-content:center;}
}
@media (max-width:575px){
  .ng-wrap{padding:0 16px;}
  .sec{padding:46px 0;}
  .page-head{height:180px;}
  .page-head h1{font-size:24px;}
  .ph-sub{font-size:13.5px;}
  .guard-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-box{padding:28px 20px;}
  .footer-grid{padding-bottom:32px;}
}