/* roulang page: index */
:root{
  --brand:#1D5DB8;--brand-700:#164A93;--brand-50:#EAF1FB;--brand-200:#C3D8F2;
  --teal:#12A594;--teal-50:#E6F6F4;
  --bg:#F7F9FC;--card:#FFFFFF;--line:#E3EAF3;
  --ink:#0F2033;--ink-2:#4A5B6E;--ink-3:#8395A7;
  --r-s:10px;--r-m:14px;--r-l:20px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(24,60,110,.06),0 8px 24px rgba(24,60,110,.06);
  --sh-2:0 2px 6px rgba(24,60,110,.08),0 16px 40px rgba(24,60,110,.10);
  --w:1200px;
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;padding:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--brand);text-decoration:none;text-underline-offset:3px;}
a:hover{color:var(--brand-700);}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.35;color:var(--ink);letter-spacing:0;}
p{margin:0;}
ul,ol,dl,dd,dt{margin:0;padding:0;list-style:none;}
:focus-visible{outline:3px solid var(--brand-200);outline-offset:2px;border-radius:6px;}

.container{width:100%;max-width:var(--w);margin:0 auto;padding:0 24px;}
@media (min-width:1440px){:root{--w:1240px;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:2px solid transparent;transition:box-shadow .22s ease,border-color .22s ease;
}
.site-header.scrolled{box-shadow:var(--sh-1);border-bottom-color:var(--line);}
.nav{display:flex;align-items:center;justify-content:space-between;height:var(--nav-h);gap:20px;}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.logo-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,var(--brand) 0%,#2E7DE0 100%);
  box-shadow:0 6px 14px rgba(29,93,184,.26);
}
.logo-mark svg{width:22px;height:22px;stroke:#fff;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.logo-text{display:flex;flex-direction:column;line-height:1.15;}
.logo-text b{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:0;}
.logo-text span{font-size:11px;color:var(--ink-3);font-weight:500;letter-spacing:0;}

.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:44px;padding:0 14px;
  font-size:15px;font-weight:500;color:var(--ink-2);border-radius:var(--r-s);
  transition:color .18s ease,background .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:0;height:2px;border-radius:var(--r-pill);background:var(--brand);
  transition:width .22s ease;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-50);}
.nav-links a:hover::after{width:24px;}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{width:24px;}
.nav-cta{margin-left:10px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-s);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.btn svg{width:18px;height:18px;stroke:currentColor;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 4px 12px rgba(29,93,184,.20);}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:0 2px 6px rgba(29,93,184,.20);}
.btn-ghost{background:#fff;color:var(--ink);border:1px solid var(--line);}
.btn-ghost:hover{color:var(--brand);border-color:var(--brand-200);}
.btn-pill{border-radius:var(--r-pill);height:44px;padding:0 22px;font-size:14px;}
.btn-lg{height:52px;padding:0 32px;font-size:16px;}
.btn-block{width:100%;}

.hamburger{
  display:none;width:44px;height:44px;border-radius:var(--r-s);
  align-items:center;justify-content:center;border:1px solid var(--line);background:#fff;
}
.hamburger svg{width:22px;height:22px;stroke:var(--ink);fill:none;stroke-width:1.75;stroke-linecap:round;}

.drawer{
  position:fixed;inset:var(--nav-h) 0 0 0;background:#fff;z-index:55;
  transform:translateX(100%);transition:transform .26s ease;overflow-y:auto;
  display:flex;flex-direction:column;padding:8px 16px 28px;
}
.drawer.open{transform:translateX(0);}
.drawer a{
  display:flex;align-items:center;height:52px;padding:0 8px;font-size:16px;font-weight:500;
  color:var(--ink-2);border-bottom:1px solid var(--line);
}
.drawer a.active{color:var(--brand);font-weight:600;}
.drawer .drawer-cta{margin-top:20px;border-bottom:0;}

@media (max-width:1023px){
  .nav-links,.nav-cta{display:none;}
  .hamburger{display:flex;}
}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#FFFFFF 0%,#FBFCFE 45%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;top:-180px;right:-160px;width:640px;height:640px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;opacity:.10;
  -webkit-mask-image:radial-gradient(circle at 70% 30%,#000 0%,transparent 68%);
  mask-image:radial-gradient(circle at 70% 30%,#000 0%,transparent 68%);
  pointer-events:none;
}
.hero-inner{
  position:relative;display:grid;grid-template-columns:5fr 7fr;gap:56px;
  align-items:center;padding:72px 0 84px;
}
.hero-copy{max-width:520px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;height:32px;padding:0 14px;
  border-radius:var(--r-pill);background:var(--brand-50);border:1px solid var(--brand-200);
  color:var(--brand);font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero-tag i{width:6px;height:6px;border-radius:50%;background:var(--teal);display:block;}
h1{font-size:40px;font-weight:700;line-height:1.28;margin-bottom:18px;}
h1 em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:17px;color:var(--ink-2);line-height:1.8;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:32px;}
.trust-bar{
  display:flex;flex-wrap:wrap;gap:8px 26px;align-items:center;
  padding-top:22px;border-top:1px solid var(--line);
}
.trust-item{display:flex;flex-direction:column;gap:2px;min-width:78px;}
.trust-item b{
  font-size:17px;font-weight:700;color:var(--teal);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.trust-item span{font-size:12.5px;color:var(--ink-3);line-height:1.4;}
.trust-plat{display:flex;gap:8px;flex-wrap:wrap;}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;
  border-radius:var(--r-pill);background:#fff;border:1px solid var(--line);
  font-size:12.5px;color:var(--ink-2);font-weight:500;
}
.chip svg{width:14px;height:14px;stroke:var(--brand);fill:none;stroke-width:1.75;}

.hero-visual{position:relative;}
.screen-frame{
  position:relative;border-radius:var(--r-l);overflow:hidden;
  border:1px solid var(--line);background:#fff;box-shadow:var(--sh-2);
  aspect-ratio:16/10;
}
.screen-frame img{width:100%;height:100%;object-fit:cover;}
.screen-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(200deg,rgba(29,93,184,.10) 0%,rgba(255,255,255,0) 55%);
  pointer-events:none;
}
.float-card{
  position:absolute;left:-26px;bottom:34px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-m);box-shadow:var(--sh-2);padding:16px 18px;min-width:206px;
}
.float-card .fc-top{display:flex;align-items:center;gap:8px;margin-bottom:10px;}
.float-card .fc-top b{font-size:14px;font-weight:700;}
.pulse{width:8px;height:8px;border-radius:50%;background:var(--teal);box-shadow:0 0 0 4px var(--teal-50);}
.float-row{display:flex;justify-content:space-between;gap:16px;font-size:12.5px;color:var(--ink-3);line-height:2;}
.float-row b{color:var(--ink);font-weight:600;font-variant-numeric:tabular-nums;}

@media (max-width:1023px){
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:48px 0 60px;}
  h1{font-size:32px;}
  .float-card{left:12px;bottom:12px;}
}
@media (max-width:520px){
  h1{font-size:26px;}
  .hero-sub{font-size:15.5px;}
  .btn{height:46px;padding:0 20px;font-size:14.5px;}
  .btn-lg{height:50px;padding:0 24px;font-size:15px;}
  .float-card{position:static;margin-top:16px;min-width:0;}
}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:660px;margin-bottom:44px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-kicker{
  display:inline-block;font-size:13px;font-weight:600;color:var(--brand);
  background:var(--brand-50);border-radius:var(--r-pill);padding:4px 14px;margin-bottom:14px;
}
h2{font-size:30px;font-weight:700;line-height:1.4;margin-bottom:14px;}
.sec-head p{font-size:16px;color:var(--ink-2);line-height:1.85;}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap;}
.sec-head-row .sec-head{margin-bottom:0;}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--brand);white-space:nowrap;
}
.link-more svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .18s ease;}
.link-more:hover svg{transform:translateX(3px);}

@media (max-width:1023px){.section{padding:64px 0;} h2{font-size:25px;} .sec-head{margin-bottom:32px;}}
@media (max-width:520px){.section{padding:48px 0;} h2{font-size:22px;} .container{padding:0 16px;}}

/* ---------- 价值区 ---------- */
.value-block{
  display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;
  padding:44px 0;
}
.value-block + .value-block{border-top:1px dashed var(--line);}
.value-block.reverse .vb-media{order:-1;}
.vb-body h3{font-size:24px;margin-bottom:16px;}
.vb-body > p{font-size:15.5px;color:var(--ink-2);margin-bottom:26px;}
.num-list{display:flex;flex-direction:column;gap:20px;}
.num-item{display:flex;gap:16px;align-items:flex-start;}
.num-dot{
  flex-shrink:0;width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;background:rgba(29,93,184,.12);
  color:var(--brand);font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.num-item h4{font-size:18px;font-weight:600;margin-bottom:4px;}
.num-item p{font-size:14.5px;color:var(--ink-2);line-height:1.75;}
.vb-media{
  border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-1);background:#fff;aspect-ratio:4/3;
}
.vb-media img{width:100%;height:100%;object-fit:cover;}
@media (max-width:1023px){
  .value-block{grid-template-columns:1fr;gap:32px;padding:32px 0;}
  .value-block.reverse .vb-media{order:0;}
  .vb-body h3{font-size:20px;}
}

/* ---------- 截图轮播 ---------- */
.shots-area{position:relative;}
.shots{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:6px 4px 22px;scrollbar-width:none;-ms-overflow-style:none;
  scroll-behavior:smooth;
}
.shots::-webkit-scrollbar{display:none;}
.shot{
  flex:0 0 300px;scroll-snap-align:center;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-l);box-shadow:var(--sh-1);padding:16px;
  transition:box-shadow .2s ease,transform .2s ease;
}
.shot:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.shot-screen{
  border-radius:var(--r-m);overflow:hidden;background:var(--brand-50);
  aspect-ratio:9/16;margin-bottom:14px;border:1px solid var(--line);
}
.shot-screen img{width:100%;height:100%;object-fit:cover;}
.shot h4{font-size:16px;font-weight:600;margin-bottom:6px;}
.shot p{font-size:13.5px;color:var(--ink-2);line-height:1.7;}
.shot-nav{
  position:absolute;top:38%;width:44px;height:44px;border-radius:50%;
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);
  display:grid;place-items:center;transition:background .18s ease,border-color .18s ease;
}
.shot-nav svg{width:20px;height:20px;stroke:var(--brand);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
.shot-nav:hover{background:var(--brand-50);border-color:var(--brand-200);}
.shot-nav.prev{left:-18px;}
.shot-nav.next{right:-18px;}
.dots{display:flex;justify-content:center;gap:8px;margin-top:14px;}
.dots button{width:6px;height:6px;border-radius:var(--r-pill);background:var(--line);transition:all .24s ease;padding:0;}
.dots button.on{width:20px;background:var(--brand);}
@media (max-width:1023px){
  .shot-nav{display:none;}
  .shot{flex:0 0 268px;}
}

/* ---------- 系统要求 ---------- */
.req-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.req-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--sh-1);padding:28px;transition:box-shadow .2s ease,transform .2s ease;
}
.req-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.req-head{display:flex;align-items:center;gap:12px;margin-bottom:8px;}
.req-ic{
  width:42px;height:42px;border-radius:12px;background:var(--brand-50);
  display:grid;place-items:center;border:1px solid var(--brand-200);
}
.req-ic svg{width:22px;height:22px;stroke:var(--brand);fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.req-head h3{font-size:19px;}
.req-badges{display:flex;gap:8px;margin:12px 0 18px;flex-wrap:wrap;}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;
}
.badge-b{background:var(--brand-50);color:var(--brand);}
.badge-t{background:var(--teal-50);color:var(--teal);}
.req-list dt{font-size:13px;color:var(--ink-3);line-height:2.2;}
.req-list dd{font-size:14.5px;color:var(--ink);line-height:2.2;border-bottom:1px solid var(--line);padding-bottom:2px;}
.req-list dd:last-child{border-bottom:0;}
@media (max-width:768px){.req-grid{grid-template-columns:1fr;}#req{padding-top:48px;}}

/* ---------- CMS 列表 ---------- */
.cms-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cms-card{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow .2s ease,transform .2s ease;
}
.cms-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.cms-link{display:block;padding:16px 18px 18px;color:inherit;}
.cms-link:hover{color:inherit;}
.cms-cover{
  border-radius:var(--r-m);overflow:hidden;background:var(--brand-50);
  aspect-ratio:16/9;margin-bottom:14px;
}
.cms-cover img{width:100%;height:100%;object-fit:cover;}
.cms-badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  background:var(--brand-50);color:var(--brand);font-size:12px;font-weight:600;margin-bottom:10px;
}
.cms-card h3{
  font-size:16.5px;font-weight:600;line-height:1.55;margin-bottom:8px;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-card .cms-sum{
  font-size:14px;color:var(--ink-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.cms-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:14px;padding-top:12px;border-top:1px solid var(--line);
  font-size:12.5px;color:var(--ink-3);
}
.cms-more{color:var(--brand);font-weight:600;}
.cms-empty{
  min-height:220px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:14px;text-align:center;background:#fff;border:1px dashed var(--line);border-radius:var(--r-m);
}
.empty-ic{width:56px;height:56px;border-radius:50%;background:var(--brand-50);display:grid;place-items:center;}
.empty-ic svg{width:26px;height:26px;stroke:var(--brand);fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.cms-empty p{font-size:14px;color:var(--ink-3);}
@media (max-width:1023px){.cms-grid{grid-template-columns:repeat(2,1fr);}}
@media (max-width:767px){.cms-grid{grid-template-columns:1fr;}}

/* ---------- 评价墙 ---------- */
.quote-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.quote-col:nth-child(2){transform:translateY(32px);}
@media (max-width:1023px){
  .quote-grid{grid-template-columns:1fr;gap:20px;}
  .quote-col:nth-child(2){transform:none;}
}
.quote-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--sh-1);padding:26px;margin-bottom:24px;
  transition:box-shadow .2s ease,transform .2s ease;
}
.quote-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.quote-card:last-child{margin-bottom:0;}
.quote-mark{font-size:38px;line-height:1;color:rgba(18,165,148,.18);font-weight:700;margin-bottom:6px;}
.quote-card p{font-size:15px;color:var(--ink-2);line-height:1.85;margin-bottom:18px;}
.quote-user{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid var(--line);}
.avatar{
  width:40px;height:40px;border-radius:50%;background:var(--brand-50);color:var(--brand);
  display:grid;place-items:center;font-size:15px;font-weight:700;flex-shrink:0;
  border:1px solid var(--brand-200);
}
.quote-user b{font-size:14.5px;font-weight:600;display:block;line-height:1.4;}
.quote-user span{font-size:12.5px;color:var(--ink-3);}
.stars{display:flex;gap:2px;margin-top:4px;}
.stars svg{width:13px;height:13px;fill:var(--brand);stroke:none;}

/* ---------- 下载 CTA ---------- */
.download-card{
  background:var(--brand-50);border:1px solid var(--brand-200);border-radius:var(--r-l);
  padding:44px;display:grid;grid-template-columns:1.3fr 1fr;gap:40px;align-items:center;
}
.download-card h2{font-size:28px;margin-bottom:12px;}
.download-card p{font-size:15.5px;color:var(--ink-2);}
.dl-actions{display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:flex-end;}
.qr-box{
  width:120px;height:120px;border-radius:var(--r-m);background:#fff;
  border:1px solid var(--line);display:grid;place-items:center;padding:10px;flex-shrink:0;
}
.qr-box svg{width:100%;height:100%;stroke:var(--ink-2);fill:none;stroke-width:1.4;}
@media (max-width:1023px){
  .download-card{grid-template-columns:1fr;padding:30px;gap:26px;}
  .dl-actions{justify-content:flex-start;}
  .download-card h2{font-size:22px;}
}
@media (max-width:520px){
  .dl-actions{flex-direction:column;align-items:stretch;}
  .qr-box{width:100%;height:auto;aspect-ratio:1/1;max-width:140px;}
}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:0.85fr 1.15fr;gap:56px;align-items:start;}
.faq-aside{position:sticky;top:calc(var(--nav-h) + 24px);}
.faq-aside h2{margin-bottom:14px;}
.faq-aside p{font-size:15px;color:var(--ink-2);margin-bottom:22px;}
.faq-list{max-width:640px;display:flex;flex-direction:column;gap:12px;}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  overflow:hidden;transition:box-shadow .2s ease;
}
.faq-item:hover{box-shadow:var(--sh-1);}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--brand);
  transform:scaleY(0);transform-origin:top;transition:transform .2s ease;
}
.faq-item.open::before{transform:scaleY(1);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;text-align:left;font-size:15.5px;font-weight:600;color:var(--ink);
}
.faq-q svg{width:18px;height:18px;stroke:var(--ink-3);fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease;flex-shrink:0;}
.faq-item.open .faq-q svg{transform:rotate(180deg);stroke:var(--brand);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .24s ease;}
.faq-a p{padding:0 24px 22px;font-size:14.5px;color:var(--ink-2);line-height:1.9;}
@media (max-width:1023px){
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .faq-aside{position:static;}
}

/* ---------- 页脚 ---------- */
.site-footer{background:#112741;color:#C7D5E5;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:18px;}
.footer-brand .logo-mark{width:34px;height:34px;border-radius:10px;background:rgba(255,255,255,.12);box-shadow:none;}
.footer-brand .logo-mark svg{stroke:#fff;}
.footer-brand b{font-size:16px;color:#fff;font-weight:700;}
.site-footer p{font-size:14px;line-height:1.9;color:#A9BDD3;}
.site-footer h4{font-size:14.5px;color:#fff;font-weight:600;margin-bottom:18px;}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:#C7D5E5;transition:color .16s ease;}
.footer-links a:hover{color:#fff;text-decoration:underline;text-decoration-thickness:1px;}
.footer-contact li{font-size:14px;color:#C7D5E5;line-height:2;display:flex;gap:10px;align-items:flex-start;}
.footer-contact svg{width:17px;height:17px;stroke:#7FA3C9;fill:none;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;flex-shrink:0;margin-top:6px;}
.footer-bottom{
  border-top:1px solid rgba(199,213,229,.18);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:#93AAC3;
}
.footer-bottom .fb-left{display:flex;flex-wrap:wrap;gap:6px 20px;align-items:center;}
.to-top{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;color:#C7D5E5;
  border:1px solid rgba(199,213,229,.3);border-radius:var(--r-pill);padding:7px 16px;
  transition:background .18s ease,border-color .18s ease,color .18s ease;
}
.to-top:hover{background:rgba(255,255,255,.08);border-color:rgba(199,213,229,.6);color:#fff;}
.to-top svg{width:14px;height:14px;stroke:currentColor;fill:none;stroke-width:2;stroke-linecap:round;stroke-linejoin:round;}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr;gap:32px;}}
@media (max-width:520px){.footer-grid{grid-template-columns:1fr;padding-bottom:32px;}.site-footer{padding-top:48px;}}

/* roulang page: article */
:root{
  --brand:#1D5DB8;
  --brand-700:#164A93;
  --brand-50:#EAF1FB;
  --brand-200:#C3D8F2;
  --teal:#12A594;
  --teal-50:#E6F6F4;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --ink:#0F2033;
  --ink-2:#4A5B6E;
  --ink-3:#8395A7;
  --r-s:10px;
  --r-m:14px;
  --r-l:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(24,60,110,.06),0 8px 24px rgba(24,60,110,.06);
  --sh-2:0 2px 6px rgba(24,60,110,.08),0 16px 40px rgba(24,60,110,.10);
  --font:system-ui,-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;}
a:hover{color:var(--brand-700);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{font-weight:700;line-height:1.45;margin:0;color:var(--ink);}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;}
:focus-visible{outline:none;box-shadow:0 0 0 3px var(--brand-200);border-radius:6px;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
@media (min-width:1440px){
  .container{max-width:1240px;}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:var(--r-s);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.btn svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.btn-primary{background:var(--brand);color:#fff;}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);}
.btn-ghost:hover{border-color:var(--brand-200);color:var(--brand);box-shadow:var(--sh-1);}
.btn-ghost:active{transform:translateY(0);}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.scrolled{
  box-shadow:var(--sh-1);
  border-bottom:2px solid var(--line);
}
.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:72px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:var(--ink);
  flex-shrink:0;
}
.brand:hover{color:var(--ink);}
.logo-mark{
  width:36px;
  height:36px;
  border-radius:10px;
  background:var(--brand);
  display:grid;
  place-items:center;
  flex-shrink:0;
}
.logo-mark svg{
  width:22px;
  height:22px;
  fill:none;
  stroke:#fff;
  stroke-width:1.75;
  stroke-linecap:round;
  stroke-linejoin:round;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:30px;
}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--ink-2);
  padding:6px 0;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:-8px;
  width:24px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  transform:translateX(-50%) scaleX(0);
  transition:transform .2s ease;
}
.nav-links a:hover{color:var(--brand);}
.nav-links a:hover::after{transform:translateX(-50%) scaleX(1);}
.nav-links a.active{color:var(--brand);font-weight:600;}
.nav-links a.active::after{transform:translateX(-50%) scaleX(1);}
.nav-cta{
  display:inline-flex;
  align-items:center;
  height:42px;
  padding:0 22px;
  border-radius:var(--r-pill);
  background:var(--brand);
  color:#fff;
  font-size:15px;
  font-weight:600;
  transition:background .18s ease,box-shadow .18s ease,transform .18s ease;
}
.nav-cta:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.nav-toggle{
  display:none;
  width:44px;
  height:44px;
  border:1px solid var(--line);
  border-radius:var(--r-s);
  background:#fff;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.nav-toggle svg{width:22px;height:22px;fill:none;stroke:var(--ink);stroke-width:1.75;stroke-linecap:round;}
.drawer{
  position:fixed;
  top:72px;
  left:0;
  right:0;
  bottom:0;
  background:#fff;
  padding:8px 24px 32px;
  overflow-y:auto;
  transform:translateY(-12px);
  opacity:0;
  visibility:hidden;
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
  z-index:55;
}
.drawer.is-open{opacity:1;visibility:visible;transform:translateY(0);}
.drawer-nav{display:flex;flex-direction:column;}
.drawer-nav a{
  display:flex;
  align-items:center;
  height:52px;
  font-size:16px;
  color:var(--ink);
  border-bottom:1px solid var(--line);
}
.drawer-nav a.active{color:var(--brand);font-weight:600;}
.drawer-cta{margin-top:24px;width:100%;height:50px;}

/* ---------- 页头横幅 + 面包屑 ---------- */
.page-banner{
  background-color:#fff;
  background-image:linear-gradient(90deg,rgba(255,255,255,.94),rgba(255,255,255,.72)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center right;
  border-bottom:1px solid var(--line);
  padding:22px 0;
}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  list-style:none;
  font-size:14px;
  color:var(--ink-3);
}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li+li::before{
  content:"";
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand-200);
  display:inline-block;
}
.breadcrumb a{color:var(--ink-2);}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline;text-decoration-color:rgba(29,93,184,.4);}
.breadcrumb [aria-current="page"]{color:var(--ink);font-weight:600;}

/* ---------- 文章头部 ---------- */
.article-hero{padding:44px 0 8px;background:#fff;}
.article-hero .inner{max-width:860px;margin:0 auto;}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  height:28px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:var(--brand-50);
  color:var(--brand);
  font-size:13px;
  font-weight:600;
  border:1px solid var(--brand-200);
}
.article-title{
  font-size:34px;
  line-height:1.4;
  margin:18px 0 16px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  font-size:14px;
  color:var(--ink-3);
  padding-bottom:26px;
  border-bottom:1px solid var(--line);
}
.article-meta .dot{color:var(--brand-200);}
.article-meta b{color:var(--ink-2);font-weight:600;}

/* ---------- 正文布局 ---------- */
.article-section{padding:40px 0 0;background:#fff;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr);
  gap:40px;
  max-width:860px;
  margin:0 auto;
}
.article-body{
  font-size:16.5px;
  line-height:1.9;
  color:var(--ink-2);
  min-width:0;
}
.article-body p{margin:0 0 20px;}
.article-body h2{
  font-size:22px;
  color:var(--ink);
  margin:44px 0 18px;
  padding-left:14px;
  border-left:4px solid var(--brand);
  border-radius:2px;
}
.article-body h3{
  font-size:18.5px;
  color:var(--ink);
  margin:32px 0 14px;
}
.article-body ul,.article-body ol{margin:0 0 22px;padding-left:22px;}
.article-body li{margin-bottom:10px;}
.article-body li::marker{color:var(--brand);}
.article-body a{color:var(--brand);text-decoration:underline;text-decoration-color:rgba(29,93,184,.4);text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-700);text-decoration-color:var(--brand-700);}
.article-body strong{color:var(--ink);font-weight:600;}
.article-body blockquote{
  margin:26px 0;
  padding:18px 22px;
  background:var(--teal-50);
  border-left:3px solid var(--teal);
  border-radius:0 var(--r-m) var(--r-m) 0;
  color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:var(--r-m);
  margin:28px auto;
  box-shadow:var(--sh-1);
}
.article-body figure{margin:28px 0;}
.article-body figcaption{
  font-size:13px;
  color:var(--ink-3);
  text-align:center;
  margin-top:10px;
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  overflow:hidden;
}
.article-body th{
  background:var(--brand-50);
  color:var(--ink);
  text-align:left;
  font-weight:600;
  padding:12px 16px;
}
.article-body td{
  padding:12px 16px;
  border-top:1px solid var(--line);
  color:var(--ink-2);
}
.article-body code{
  background:var(--brand-50);
  color:var(--brand-700);
  padding:2px 6px;
  border-radius:6px;
  font-size:14px;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:36px 0;}

/* ---------- 侧栏目录 ---------- */
.toc{display:none;}
.toc-inner{
  position:sticky;
  top:96px;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  background:#fff;
  box-shadow:var(--sh-1);
  padding:18px 20px;
}
.toc-title{
  font-size:14px;
  font-weight:700;
  color:var(--ink);
  margin-bottom:12px;
  padding-bottom:10px;
  border-bottom:1px solid var(--line);
}
.toc-list{display:flex;flex-direction:column;gap:2px;}
.toc-list a{
  display:block;
  font-size:14px;
  line-height:1.6;
  color:var(--ink-2);
  padding:7px 10px;
  border-radius:8px;
  border-left:2px solid transparent;
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.toc-list a:hover{background:var(--brand-50);color:var(--brand);border-left-color:var(--brand);}
@media (min-width:1280px){
  .article-layout{
    grid-template-columns:minmax(0,1fr) 260px;
    max-width:1140px;
  }
  .toc{display:block;}
}

/* ---------- 标签行 ---------- */
.tag-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin:44px 0 0;
  padding-top:24px;
  border-top:1px solid var(--line);
}
.tag-label{font-size:14px;color:var(--ink-3);}
.tag{
  display:inline-flex;
  align-items:center;
  height:32px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:#fff;
  border:1px solid var(--line);
  font-size:14px;
  color:var(--ink-2);
  transition:border-color .16s ease,color .16s ease,background .16s ease;
}
.tag:hover{border-color:var(--brand-200);color:var(--brand);background:var(--brand-50);}

/* ---------- 延伸阅读 ---------- */
.related{
  background:#fff;
  padding:56px 0 0;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px;
  margin-bottom:24px;
}
.section-head h2{font-size:22px;}
.section-head p{margin:6px 0 0;font-size:14.5px;color:var(--ink-3);}
.section-head .more{font-size:14.5px;font-weight:600;white-space:nowrap;}
.related-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.rel-card{
  position:relative;
  display:flex;
  flex-direction:column;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-m);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.rel-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--brand-200);}
.rel-media{aspect-ratio:16/9;background:var(--brand-50);overflow:hidden;}
.rel-media img{width:100%;height:100%;object-fit:cover;}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;}
.rel-cat{
  align-self:flex-start;
  font-size:12.5px;
  font-weight:600;
  color:var(--brand);
  background:var(--brand-50);
  padding:3px 10px;
  border-radius:var(--r-pill);
}
.rel-title{font-size:16.5px;font-weight:600;color:var(--ink);margin:0;line-height:1.55;}
.rel-card:hover .rel-title{color:var(--brand);}
.rel-card a.card-link{position:absolute;inset:0;z-index:2;text-indent:-9999px;overflow:hidden;}
.rel-text{font-size:14.5px;color:var(--ink-2);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

/* ---------- 结束入口 ---------- */
.end-actions{
  background:#fff;
  padding:52px 0 80px;
}
.end-card{
  max-width:860px;
  margin:0 auto;
  background:var(--brand-50);
  border:1px solid var(--brand-200);
  border-radius:var(--r-l);
  padding:30px 32px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.end-card h2{font-size:20px;margin-bottom:6px;}
.end-card p{margin:0;font-size:14.5px;color:var(--ink-2);}
.end-btns{display:flex;gap:12px;flex-shrink:0;}

/* ---------- 空态 ---------- */
.empty-section{background:#fff;padding:20px 0 80px;}
.empty-state{
  max-width:600px;
  margin:0 auto;
  text-align:center;
  padding:56px 32px;
  border:1px solid var(--line);
  border-radius:var(--r-l);
  background:#fff;
  box-shadow:var(--sh-1);
}
.empty-icon{
  width:64px;
  height:64px;
  border-radius:50%;
  background:var(--brand-50);
  display:grid;
  place-items:center;
  margin:0 auto 18px;
}
.empty-icon svg{width:28px;height:28px;fill:none;stroke:var(--brand);stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--ink-2);font-size:15px;margin-bottom:22px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#112741;
  color:#C7D5E5;
  padding:64px 0 0;
  margin-top:0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.4fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:17px;
  font-weight:700;
  color:#fff;
  margin-bottom:16px;
}
.footer-brand .logo-mark{background:#1D5DB8;}
.footer-brand b{font-weight:700;}
.site-footer p{font-size:14.5px;line-height:1.85;color:#C7D5E5;margin:0;}
.site-footer h4{
  font-size:15px;
  color:#fff;
  margin-bottom:16px;
  font-weight:600;
}
.footer-links{display:flex;flex-direction:column;gap:12px;}
.footer-links a{font-size:14.5px;color:#C7D5E5;transition:color .16s ease;}
.footer-links a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.footer-contact{list-style:none;display:flex;flex-direction:column;gap:14px;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;line-height:1.7;}
.footer-contact svg{
  width:18px;height:18px;flex-shrink:0;margin-top:4px;
  fill:none;stroke:#8FB2DC;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;
}
.footer-bottom{
  border-top:1px solid rgba(199,213,229,.2);
  padding:20px 0 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
}
.fb-left{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13.5px;color:#9FB4CC;}
.to-top{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  color:#C7D5E5;
}
.to-top svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;}
.to-top:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .nav-links,.nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .article-title{font-size:30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .end-card{flex-direction:column;align-items:flex-start;}
}
@media (max-width:768px){
  .container{padding:0 16px;}
  .article-hero{padding:32px 0 4px;}
  .article-title{font-size:26px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:20px;margin-top:36px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px;}
  .related-grid{grid-template-columns:1fr;}
  .end-card{padding:24px 22px;}
  .end-btns{flex-direction:column;width:100%;}
  .end-btns .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .brand{font-size:15.5px;}
  .article-title{font-size:23px;}
  .article-meta{font-size:13px;}
  .btn{width:100%;}
  .empty-state{padding:40px 22px;}
}

/* roulang page: category1 */
:root{
  --brand:#1D5DB8;
  --brand-700:#164A93;
  --brand-50:#EAF1FB;
  --brand-200:#C3D8F2;
  --teal:#12A594;
  --teal-50:#E6F6F4;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --ink:#0F2033;
  --ink-2:#4A5B6E;
  --ink-3:#8395A7;
  --r-s:10px;
  --r-m:14px;
  --r-l:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(24,60,110,.06),0 8px 24px rgba(24,60,110,.06);
  --sh-2:0 2px 6px rgba(24,60,110,.08),0 16px 40px rgba(24,60,110,.10);
  --ctr:1200px;
  --sec:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;text-underline-offset:3px;text-decoration-thickness:1px}
a:hover{color:var(--brand-700)}
h1,h2,h3,h4{margin:0;line-height:1.35;font-weight:700;color:var(--ink);letter-spacing:0}
p{margin:0}
ul,ol,dl,dd{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit}
svg{width:24px;height:24px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
:focus-visible{outline:3px solid var(--brand-200);outline-offset:2px;border-radius:6px}

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

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-s);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background-color .18s ease,border-color .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn svg{width:18px;height:18px}
.btn-primary{background:var(--brand);color:#fff;border-color:var(--brand)}
.btn-primary:hover{background:var(--brand-700);border-color:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand-200);color:var(--brand);transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-ghost:active{transform:translateY(0);box-shadow:none}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-block{width:100%}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:#fff;border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.logo{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:17px}
.logo:hover{color:var(--ink)}
.logo-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 auto;
  background:var(--brand-50);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:22px;height:22px}
.logo-text{white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;
  height:40px;padding:0 14px;border-radius:var(--r-s);
  font-size:15px;color:var(--ink-2);font-weight:500;
  transition:color .18s ease,background-color .18s ease;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-50)}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-links a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:24px;height:2px;border-radius:var(--r-pill);background:var(--brand);
}
.header-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-s);
  background:#fff;border:1px solid var(--line);cursor:pointer;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:var(--brand-200);color:var(--brand)}
.mobile-drawer{
  display:none;border-top:1px solid var(--line);background:#fff;
  padding:8px 24px 24px;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a{
  display:flex;align-items:center;height:52px;
  border-bottom:1px solid var(--line);
  color:var(--ink-2);font-size:16px;
}
.mobile-drawer a.active{color:var(--brand);font-weight:600}
.mobile-drawer .btn{margin-top:20px}

/* ---------- breadcrumb ---------- */
.crumbs{padding:22px 0 0}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3)}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:var(--line)}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--brand)}
.crumbs [aria-current="page"]{color:var(--ink)}

/* ---------- hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  margin-top:24px;border-radius:var(--r-l);
  background:#fff;border:1px solid var(--line);box-shadow:var(--sh-1);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:right top;
  opacity:.10;pointer-events:none;
}
.page-hero-inner{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:40px;align-items:center;padding:56px 48px}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--brand-50);color:var(--brand);
  font-size:13px;font-weight:600;border:1px solid var(--brand-200);
}
.badge svg{width:16px;height:16px}
.page-hero h1{margin-top:18px;font-size:40px;line-height:1.25}
.page-hero .lede{margin-top:16px;font-size:16px;color:var(--ink-2);max-width:520px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.hero-facts{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;
  padding-top:24px;border-top:1px solid var(--line);
}
.hero-facts div{min-width:104px}
.hero-facts dt{font-size:13px;color:var(--ink-3)}
.hero-facts dd{font-size:22px;font-weight:700;color:var(--teal);font-variant-numeric:tabular-nums;margin-top:2px}
.hero-facts dd span{font-size:14px;font-weight:600;color:var(--ink-2);margin-left:2px}
.hero-visual{position:relative}
.hero-visual .shot{
  border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--sh-2);background:#fff;aspect-ratio:16/11;
}
.hero-visual .shot img{width:100%;height:100%;object-fit:cover}
.hero-visual .float-card{
  position:absolute;left:-18px;bottom:-18px;
  display:flex;align-items:center;gap:12px;
  padding:14px 18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-m);box-shadow:var(--sh-2);
}
.hero-visual .float-card .dot{
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:var(--teal-50);color:var(--teal);
  display:inline-flex;align-items:center;justify-content:center;
}
.hero-visual .float-card b{display:block;font-size:14px}
.hero-visual .float-card small{display:block;font-size:12.5px;color:var(--ink-3)}

/* ---------- sections ---------- */
.section{padding-top:var(--sec)}
.section-head{max-width:720px}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--teal);
  background:var(--teal-50);border-radius:var(--r-pill);padding:4px 12px;
}
.section-head h2{margin-top:14px;font-size:30px}
.section-head p{margin-top:12px;color:var(--ink-2)}

/* ---------- zigzag ---------- */
.zigzag{display:flex;flex-direction:column;gap:64px;margin-top:48px}
.zig-row{
  display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-l);
  padding:36px;box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,transform .18s ease;
}
.zig-row:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.zig-row.is-reversed .zig-media{order:2}
.zig-media{border-radius:var(--r-m);overflow:hidden;border:1px solid var(--line);aspect-ratio:4/3;background:var(--brand-50)}
.zig-media img{width:100%;height:100%;object-fit:cover}
.zig-body .step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;
  background:rgba(29,93,184,.12);color:var(--brand);
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.zig-body h3{margin-top:16px;font-size:22px}
.zig-body p{margin-top:12px;color:var(--ink-2)}
.zig-list{margin-top:18px;display:flex;flex-direction:column;gap:10px}
.zig-list li{display:flex;gap:10px;align-items:flex-start;color:var(--ink-2);font-size:15px}
.zig-list li svg{width:18px;height:18px;color:var(--teal);flex:0 0 auto;margin-top:5px}

/* ---------- mid cta ---------- */
.cta-band{
  display:grid;grid-template-columns:1.2fr auto;gap:32px;align-items:center;
  background:var(--brand-50);border:1px solid var(--brand-200);
  border-radius:var(--r-l);padding:40px 44px;
}
.cta-band h2{font-size:26px}
.cta-band p{margin-top:10px;color:var(--ink-2);max-width:620px}
.cta-band .cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:56px;align-items:start}
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:640px;width:100%}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:20px 24px;box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item:hover{box-shadow:var(--sh-2)}
.faq-item[open]{border-color:var(--brand-200);border-left:3px solid var(--brand)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;
  font-size:16.5px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary .chev{
  margin-left:auto;flex:0 0 auto;width:22px;height:22px;color:var(--ink-3);
  transition:transform .2s ease;
}
.faq-item[open] summary .chev{transform:rotate(180deg);color:var(--brand)}
.faq-item .answer{margin-top:12px;color:var(--ink-2);font-size:15px;padding-left:0}

/* ---------- final cta ---------- */
.download-band{
  display:grid;grid-template-columns:1.25fr auto;gap:36px;align-items:center;
  background:#fff;border:1px solid var(--brand-200);border-radius:var(--r-l);
  padding:44px;box-shadow:var(--sh-1);
}
.download-band h2{font-size:28px}
.download-band p{margin-top:10px;color:var(--ink-2);max-width:600px}
.dl-actions{display:flex;flex-direction:column;gap:12px;align-items:stretch}
.dl-platforms{display:flex;gap:10px;flex-wrap:wrap}
.qr-card{
  width:128px;background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:12px;text-align:center;box-shadow:var(--sh-1);
}
.qr-card .qr-box{
  width:100%;aspect-ratio:1;border-radius:var(--r-s);
  background:
    linear-gradient(90deg,var(--line) 25%,transparent 25%) 0 0/16px 16px,
    linear-gradient(90deg,transparent 75%,var(--line) 75%) 0 0/16px 16px,
    linear-gradient(0deg,var(--line) 25%,transparent 25%) 0 0/16px 16px,
    linear-gradient(0deg,transparent 75%,var(--line) 75%) 0 0/16px 16px,
    var(--brand-50);
}
.qr-card small{display:block;margin-top:8px;font-size:12.5px;color:var(--ink-3)}

/* ---------- back home ---------- */
.back-row{
  display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  padding:32px 0 0;color:var(--ink-3);font-size:14.5px;
}
.back-row a{display:inline-flex;align-items:center;gap:6px;font-weight:600}
.back-row a svg{width:18px;height:18px}

/* ---------- footer ---------- */
.site-footer{margin-top:var(--sec);background:#112741;color:#C7D5E5}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:40px;
  padding:64px 0 40px;
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px}
.footer-brand .logo-mark{background:rgba(255,255,255,.1);color:#fff}
.site-footer p{margin-top:16px;font-size:14.5px;color:#A9BBD1;max-width:340px}
.site-footer h4{font-size:15px;color:#fff;margin-bottom:16px}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{color:#C7D5E5;font-size:14.5px;width:fit-content}
.footer-links a:hover{color:#fff;text-decoration:underline;text-decoration-thickness:1px}
.footer-contact{display:flex;flex-direction:column;gap:14px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:#A9BBD1}
.footer-contact svg{width:18px;height:18px;flex:0 0 auto;margin-top:4px;color:#7FA3CC}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
  padding:22px 0 30px;border-top:1px solid rgba(255,255,255,.12);
}
.fb-left{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:13.5px;color:#93A7BF}
.to-top{display:inline-flex;align-items:center;gap:8px;color:#C7D5E5;font-size:14px;font-weight:600}
.to-top:hover{color:#fff;text-decoration:underline}
.to-top svg{width:18px;height:18px}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  .page-hero-inner{padding:48px 36px}
  .page-hero h1{font-size:36px}
}
@media (max-width:1024px){
  :root{--sec:64px}
  .nav-links{display:none}
  .nav-toggle{display:inline-flex}
  .header-actions .btn{display:none}
  .page-hero-inner{grid-template-columns:1fr;gap:36px;padding:40px 28px}
  .hero-visual .float-card{left:12px;bottom:-16px}
  .zig-row{grid-template-columns:1fr;gap:28px;padding:28px}
  .zig-row.is-reversed .zig-media{order:0}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .cta-band,.download-band{grid-template-columns:1fr;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
}
@media (max-width:768px){
  :root{--sec:48px}
  .container{padding:0 16px}
  .page-hero h1{font-size:30px}
  .section-head h2{font-size:25px}
  .cta-band h2,.download-band h2{font-size:22px}
  .hero-facts{gap:20px}
  .hero-facts dd{font-size:19px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:520px){
  .page-hero{border-radius:var(--r-m)}
  .page-hero h1{font-size:27px}
  .btn{width:100%}
  .hero-actions,.cta-actions,.dl-platforms{flex-direction:column;align-items:stretch}
  .header-actions .nav-toggle{width:44px}
  .faq-item{padding:18px 18px}
  .qr-card{width:112px}
}

/* roulang page: category3 */
:root{
  --brand:#1D5DB8;
  --brand-700:#164A93;
  --brand-50:#EAF1FB;
  --brand-200:#C3D8F2;
  --teal:#12A594;
  --teal-50:#E6F6F4;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --ink:#0F2033;
  --ink-2:#4A5B6E;
  --ink-3:#8395A7;
  --r-s:10px;
  --r-m:14px;
  --r-l:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(24,60,110,.06),0 8px 24px rgba(24,60,110,.06);
  --sh-2:0 2px 6px rgba(24,60,110,.08),0 16px 40px rgba(24,60,110,.10);
  --danger:#D9534F;
  --footer:#112741;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none}
p{margin:0 0 14px}
h1,h2,h3,h4{margin:0 0 14px;font-weight:700;line-height:1.35;color:var(--ink)}
h1{font-size:38px;letter-spacing:0}
h2{font-size:28px}
h3{font-size:19px;font-weight:600}
h4{font-size:16px;font-weight:600}
ul,ol{margin:0;padding:0}
li{list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:3px solid var(--brand-200);outline-offset:2px;border-radius:6px}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-sm{padding:64px 0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:17px;white-space:nowrap}
.logo-mark{
  width:36px;height:36px;border-radius:11px;background:var(--brand);display:inline-flex;
  align-items:center;justify-content:center;flex:0 0 auto;
}
.logo-mark svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-links a{
  position:relative;color:var(--ink-2);font-size:15px;font-weight:500;padding:6px 0;
  transition:color .18s ease;
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%) scaleX(0);
  width:24px;height:2px;border-radius:var(--r-pill);background:var(--brand);
  transition:transform .2s ease;
}
.nav-links a:hover{color:var(--brand)}
.nav-links a:hover::after,.nav-links a.active::after{transform:translateX(-50%) scaleX(1)}
.nav-links a.active{color:var(--brand);font-weight:600}
.header-cta{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 22px;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;
  transition:background .18s ease,transform .18s ease,box-shadow .18s ease;
}
.header-cta:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;
  border-radius:var(--r-s);align-items:center;justify-content:center;cursor:pointer;
}
.nav-toggle svg{width:22px;height:22px;fill:none;stroke:var(--ink);stroke-width:1.75;stroke-linecap:round}
.drawer{
  display:none;position:fixed;inset:72px 0 0;background:#fff;z-index:55;
  padding:8px 24px 28px;overflow-y:auto;
}
.drawer.open{display:block}
.drawer a{
  display:flex;align-items:center;height:52px;border-bottom:1px solid var(--line);
  color:var(--ink);font-size:16px;
}
.drawer a.active{color:var(--brand);font-weight:600}
.drawer .drawer-btn{
  display:flex;justify-content:center;margin-top:20px;height:48px;border-bottom:none;
  background:var(--brand);color:#fff;border-radius:var(--r-s);font-weight:600;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-s);border:1px solid transparent;
  font-size:16px;font-weight:600;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.btn svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-700);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-ghost:hover{border-color:var(--brand-200);color:var(--brand)}
.btn-lg{height:52px}
.btn-block{width:100%}

/* ---------- breadcrumb ---------- */
.crumb{padding:22px 0 0}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3)}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--brand);text-decoration:underline}
.crumb .sep{color:var(--ink-3)}

/* ---------- hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#FFFFFF 0%,#F7F9FC 100%);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;top:-120px;right:-80px;width:560px;height:560px;
  background:url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  opacity:.1;border-radius:50%;pointer-events:none;
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:center;
  padding:48px 0 88px;
}
.badge{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-pill);
  background:var(--brand-50);color:var(--brand);font-size:13px;font-weight:600;
}
.badge-teal{background:var(--teal-50);color:var(--teal)}
.hero h1{margin-top:18px;font-size:38px}
.hero .lede{font-size:17px;color:var(--ink-2);max-width:560px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:28px}
.trust{
  display:flex;flex-wrap:wrap;gap:12px 28px;padding-top:22px;border-top:1px solid var(--line);
}
.trust div{font-size:14px;color:var(--ink-3)}
.trust b{
  display:block;font-size:20px;color:var(--ink);font-variant-numeric:tabular-nums;
  font-weight:700;margin-bottom:2px;
}
.trust .num-teal{color:var(--teal)}
.hero-visual{position:relative}
.hero-shot{
  border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);background:#fff;
  box-shadow:var(--sh-2);
}
.hero-shot img{width:100%;aspect-ratio:16/10;object-fit:cover}
.float-card{
  position:absolute;left:-18px;bottom:-22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-m);box-shadow:var(--sh-2);padding:14px 18px;min-width:186px;
}
.float-card span{display:block;font-size:12px;color:var(--ink-3)}
.float-card b{display:block;font-size:15px;color:var(--ink);margin-top:2px}
.float-card .fc-row{display:flex;align-items:center;gap:8px;margin-top:8px;font-size:13px;color:var(--ink-2)}
.dot-live{width:8px;height:8px;border-radius:50%;background:var(--teal);display:inline-block}

/* ---------- generic ---------- */
.sec-head{max-width:720px;margin-bottom:44px}
.sec-head p{color:var(--ink-2);font-size:16px;margin-bottom:0}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--teal);
  letter-spacing:.02em;margin-bottom:10px;
}
.card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--sh-1);transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--brand-200)}

/* ---------- 界面说明 ---------- */
.intro-grid{display:grid;grid-template-columns:6fr 6fr;gap:44px;align-items:center}
.intro-media{border-radius:var(--r-l);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-1);background:#fff}
.intro-media img{width:100%;aspect-ratio:4/3;object-fit:cover}
.zone-list{display:grid;gap:14px;margin-top:8px}
.zone-item{
  display:flex;gap:14px;align-items:flex-start;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-m);padding:16px 18px;box-shadow:var(--sh-1);
}
.zone-item .zi-icon{
  width:40px;height:40px;flex:0 0 auto;border-radius:12px;background:var(--brand-50);
  display:flex;align-items:center;justify-content:center;
}
.zone-item .zi-icon svg{width:20px;height:20px;fill:none;stroke:var(--brand);stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.zone-item h4{margin-bottom:4px}
.zone-item p{margin:0;font-size:14px;color:var(--ink-2)}

/* ---------- 时间线 ---------- */
.timeline-wrap{position:relative;padding-left:6px}
.timeline{position:relative;display:grid;gap:26px}
.timeline::before{
  content:"";position:absolute;left:21px;top:10px;bottom:10px;width:2px;
  background:linear-gradient(180deg,var(--brand-200) 0%,var(--line) 65%,transparent 100%);
}
.tl-item{position:relative;padding-left:70px}
.tl-dot{
  position:absolute;left:0;top:0;width:44px;height:44px;border-radius:50%;
  background:var(--brand-50);color:var(--brand);border:2px solid #fff;
  display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
  box-shadow:0 0 0 1px var(--brand-200);
}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:24px 26px;box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.tl-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--brand-200)}
.tl-card h3{margin-bottom:8px;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tl-card p{margin-bottom:12px;color:var(--ink-2);font-size:15px}
.chip-row{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);
  background:#F1F5FA;color:var(--ink-2);font-size:13px;
}
.chip-teal{background:var(--teal-50);color:var(--teal)}
.chip-brand{background:var(--brand-50);color:var(--brand)}
.tip{
  margin-top:12px;background:var(--teal-50);border-left:3px solid var(--teal);
  border-radius:0 var(--r-s) var(--r-s) 0;padding:12px 16px;font-size:14px;color:#0C6B60;
}

/* ---------- 速查列表 ---------- */
.row-list{display:grid;gap:12px}
.row-item{
  display:grid;grid-template-columns:56px 1fr auto;align-items:center;gap:18px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:18px 22px;box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.row-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--brand-200)}
.ri-icon{
  width:48px;height:48px;border-radius:14px;background:var(--brand-50);
  display:flex;align-items:center;justify-content:center;
}
.ri-icon svg{width:22px;height:22px;fill:none;stroke:var(--brand);stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.row-item h4{margin-bottom:2px}
.row-item p{margin:0;font-size:14px;color:var(--ink-2)}
.ri-tag{white-space:nowrap}

/* ---------- 设置建议 ---------- */
.advice-grid{display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:start}
.advice-list{display:grid;gap:16px}
.advice-item{display:flex;gap:14px;align-items:flex-start}
.advice-num{
  width:32px;height:32px;flex:0 0 auto;border-radius:50%;background:rgba(29,93,184,.12);
  color:var(--brand);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.advice-item h4{margin-bottom:4px;font-size:17px}
.advice-item p{margin:0;font-size:14px;color:var(--ink-2)}
.quote-box{
  background:var(--teal-50);border-left:3px solid var(--teal);border-radius:0 var(--r-m) var(--r-m) 0;
  padding:20px 22px;color:#0C6B60;font-size:15px;
}
.quote-box strong{color:#08564D}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-l);
  padding:26px;box-shadow:var(--sh-1);
}
.side-card h3{margin-bottom:10px}
.side-card ul{display:grid;gap:10px;margin:14px 0 20px}
.side-card li{display:flex;gap:10px;font-size:14px;color:var(--ink-2)}
.side-card li svg{width:18px;height:18px;flex:0 0 auto;margin-top:5px;fill:none;stroke:var(--teal);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--brand-50);border:1px solid var(--brand-200);border-radius:var(--r-l);
  padding:36px 40px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band h2{font-size:24px;margin-bottom:6px}
.cta-band p{margin:0;color:var(--ink-2);font-size:15px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}
.cta-actions .btn-ghost{background:#fff}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:4fr 8fr;gap:44px;align-items:start}
.faq-list{display:grid;gap:12px;max-width:640px}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--sh-1);overflow:hidden;transition:box-shadow .2s ease;
}
.faq-item[open]{box-shadow:inset 3px 0 0 var(--brand),var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;display:flex;align-items:center;
  justify-content:space-between;gap:16px;font-weight:600;font-size:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary svg{
  width:20px;height:20px;flex:0 0 auto;fill:none;stroke:var(--ink-3);
  stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease;
}
.faq-item[open] summary svg{transform:rotate(180deg);stroke:var(--brand)}
.faq-body{padding:0 24px 22px;color:var(--ink-2);font-size:15px}
.faq-body p:last-child{margin-bottom:0}

/* ---------- back home ---------- */
.back-home{
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:center;
  padding-top:8px;
}
.link-inline{
  color:var(--brand);text-decoration:underline;text-decoration-color:rgba(29,93,184,.4);
}
.link-inline:hover{color:var(--brand-700);text-decoration-color:currentColor}

/* ---------- footer ---------- */
.site-footer{background:var(--footer);color:#C7D5E5;padding:72px 0 28px;margin-top:96px}
.footer-grid{display:grid;grid-template-columns:5fr 3fr 2fr 4fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;margin-bottom:14px}
.footer-brand .logo-mark{background:rgba(255,255,255,.14)}
.site-footer p{font-size:14px;color:#C7D5E5;line-height:1.85}
.site-footer h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-links{display:grid;gap:10px}
.footer-links a{color:#C7D5E5;font-size:14px}
.footer-links a:hover{color:#fff;text-decoration:underline;text-decoration-thickness:1px}
.footer-contact{display:grid;gap:12px}
.footer-contact li{display:flex;gap:10px;font-size:14px;align-items:flex-start}
.footer-contact svg{width:18px;height:18px;flex:0 0 auto;margin-top:5px;fill:none;stroke:#7FA0C4;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.fb-left{display:flex;flex-wrap:wrap;gap:8px 18px;font-size:13px;color:#9FB6CF}
.to-top{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:#C7D5E5}
.to-top:hover{color:#fff;text-decoration:underline}
.to-top svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.75;stroke-linecap:round;stroke-linejoin:round}

/* ---------- responsive ---------- */
@media (max-width:1280px){
  :root{--container:1140px}
}
@media (max-width:1024px){
  .nav-links,.header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:64px 0}
  .hero-grid{grid-template-columns:1fr;gap:40px;padding:32px 0 64px}
  h1{font-size:32px}
  .hero h1{font-size:32px}
  .intro-grid,.advice-grid,.faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-band{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .section-sm{padding:40px 0}
  h1{font-size:28px}
  .hero h1{font-size:28px}
  h2{font-size:23px}
  .hero .lede{font-size:16px}
  .hero-actions .btn{width:100%}
  .row-item{grid-template-columns:48px 1fr;row-gap:10px}
  .ri-tag{grid-column:2}
  .float-card{position:static;margin-top:16px;left:auto;bottom:auto}
  .timeline::before{left:17px}
  .tl-item{padding-left:52px}
  .tl-dot{width:36px;height:36px;font-size:13px}
  .footer-grid{grid-template-columns:1fr}
  .site-footer{padding:56px 0 24px;margin-top:64px}
}
@media (max-width:520px){
  body{font-size:15px}
  h1{font-size:25px}
  .hero h1{font-size:25px}
  .tl-card{padding:20px 18px}
  .cta-band{padding:26px 20px}
  .cta-actions,.cta-actions .btn{width:100%}
  .card,.faq-item{border-radius:var(--r-s)}
}

/* roulang page: category2 */
:root{
  --brand:#1D5DB8;
  --brand-700:#164A93;
  --brand-50:#EAF1FB;
  --brand-200:#C3D8F2;
  --teal:#12A594;
  --teal-50:#E6F6F4;
  --bg:#F7F9FC;
  --card:#FFFFFF;
  --line:#E3EAF3;
  --ink:#0F2033;
  --ink-2:#4A5B6E;
  --ink-3:#8395A7;
  --r-s:10px;
  --r-m:14px;
  --r-l:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(24,60,110,.06),0 8px 24px rgba(24,60,110,.06);
  --sh-2:0 2px 6px rgba(24,60,110,.08),0 16px 40px rgba(24,60,110,.10);
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--brand-700)}
button{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);line-height:1.4}
p{margin:0}
svg{display:block}
:focus-visible{outline:3px solid var(--brand-200);outline-offset:2px;border-radius:4px}

/* ---------- container ---------- */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1440px){.container{max-width:1240px}}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--r-s);
  font-size:16px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
  white-space:nowrap;
}
.btn svg{width:20px;height:20px;stroke:currentColor;stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 1px 2px rgba(24,60,110,.10)}
.btn-primary:hover{background:var(--brand-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-primary:active{transform:translateY(0);box-shadow:0 1px 2px rgba(24,60,110,.10)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--brand-200);color:var(--brand);box-shadow:var(--sh-1)}
.btn-lg{height:52px;padding:0 32px}
.btn-sm{height:42px;padding:0 20px;font-size:15px}
.btn-block{width:100%}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.95);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid transparent;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.site-header.is-scrolled{box-shadow:var(--sh-1);border-bottom-color:var(--line)}
.header-inner{display:flex;align-items:center;gap:20px;height:var(--header-h)}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.logo-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(160deg,var(--brand) 0%,#2F79D6 100%);
  display:flex;align-items:center;justify-content:center;
}
.logo-mark svg{width:21px;height:21px;stroke:#fff;stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}
.brand b{font-size:17px;font-weight:700;color:var(--ink);letter-spacing:0}
.brand:hover b{color:var(--brand)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;height:40px;
  padding:0 13px;border-radius:var(--r-s);
  font-size:15px;font-weight:500;color:var(--ink-2);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:0;height:2px;border-radius:var(--r-pill);background:var(--brand);
  transition:width .2s ease;
}
.nav-links a:hover{color:var(--brand);background:var(--brand-50)}
.nav-links a:hover::after{width:24px}
.nav-links a.active{color:var(--brand);font-weight:600}
.nav-links a.active::after{width:24px}
.header-cta{flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:44px;margin-left:auto;
  align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-s);
  cursor:pointer;
}
.nav-toggle svg{width:22px;height:22px;stroke:var(--ink);stroke-width:1.75;fill:none;stroke-linecap:round}
.drawer{
  position:fixed;inset:var(--header-h) 0 0 0;z-index:55;
  background:#fff;padding:16px 20px 28px;
  transform:translateY(-8px);opacity:0;visibility:hidden;
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
  overflow-y:auto;
}
body.drawer-open .drawer{transform:translateY(0);opacity:1;visibility:visible}
body.drawer-open{overflow:hidden}
.drawer nav a{
  display:flex;align-items:center;height:52px;
  border-bottom:1px solid var(--line);
  color:var(--ink);font-size:16px;font-weight:500;
}
.drawer nav a.active{color:var(--brand);font-weight:600}
.drawer .btn{margin-top:22px}

/* ---------- breadcrumb ---------- */
.crumbs{padding:20px 0 0}
.crumbs ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--ink-3)}
.crumbs li{display:flex;align-items:center;gap:8px}
.crumbs li+li::before{content:"/";color:var(--ink-3)}
.crumbs a{color:var(--ink-2)}
.crumbs a:hover{color:var(--brand)}
.crumbs [aria-current="page"]{color:var(--ink)}

/* ---------- hero ---------- */
.page-hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FFFFFF 0%,#F7F9FC 100%);padding:40px 0 72px}
.page-hero::before{
  content:"";position:absolute;top:-140px;right:-180px;width:760px;height:540px;
  background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  opacity:.10;border-radius:0 0 0 62%;pointer-events:none;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center}
.badge{
  display:inline-flex;align-items:center;gap:8px;
  height:32px;padding:0 14px;border-radius:var(--r-pill);
  background:var(--brand-50);border:1px solid var(--brand-200);
  color:var(--brand);font-size:13px;font-weight:600;
}
.badge svg{width:16px;height:16px;stroke:var(--brand);stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}
.page-hero h1{font-size:40px;margin:18px 0 16px;letter-spacing:-.2px}
.hero-lead{font-size:17px;color:var(--ink-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:34px;padding-top:24px;border-top:1px solid var(--line)}
.hero-stats div{min-width:110px}
.hero-stats strong{display:block;font-size:26px;font-weight:700;color:var(--teal);font-variant-numeric:tabular-nums;line-height:1.3}
.hero-stats span{font-size:13px;color:var(--ink-3)}
.hero-media{position:relative}
.hero-media .shot{
  border-radius:var(--r-l);overflow:hidden;background:#fff;
  border:1px solid var(--line);box-shadow:var(--sh-2);
}
.hero-media .shot img{width:100%;aspect-ratio:16/11;object-fit:cover}
.float-card{
  position:absolute;left:-18px;bottom:-22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  box-shadow:var(--sh-2);padding:14px 18px;min-width:196px;
}
.float-card b{display:block;font-size:14px;color:var(--ink);margin-bottom:4px}
.float-card span{font-size:13px;color:var(--ink-3)}
.float-card .dotline{display:flex;align-items:center;gap:6px;margin-top:8px;font-size:12px;color:var(--teal)}
.float-card .dot{width:7px;height:7px;border-radius:50%;background:var(--teal)}

/* ---------- anchor bar ---------- */
.anchor-bar{
  position:sticky;top:var(--header-h);z-index:40;
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(8px);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.anchor-inner{display:flex;gap:10px;overflow-x:auto;padding:12px 0;scrollbar-width:none}
.anchor-inner::-webkit-scrollbar{display:none}
.anchor-inner a{
  flex:0 0 auto;display:inline-flex;align-items:center;gap:8px;
  height:40px;padding:0 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--line);
  color:var(--ink-2);font-size:15px;font-weight:500;
  transition:color .18s ease,border-color .18s ease,background .18s ease;
}
.anchor-inner a svg{width:17px;height:17px;stroke:currentColor;stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}
.anchor-inner a:hover,.anchor-inner a.is-active{color:var(--brand);border-color:var(--brand-200);background:var(--brand-50)}

/* ---------- sections ---------- */
.section{padding:88px 0;scroll-margin-top:140px}
.section--white{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:44px}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;color:var(--teal);
  background:var(--teal-50);border-radius:var(--r-pill);padding:4px 12px;margin-bottom:14px;
}
.section-head h2{font-size:30px;margin-bottom:14px}
.section-head p{color:var(--ink-2)}

/* ---------- card grids ---------- */
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-m);
  padding:26px;box-shadow:var(--sh-1);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--brand-200)}
.icon-box{
  width:46px;height:46px;border-radius:13px;
  background:var(--brand-50);display:flex;align-items:center;justify-content:center;
}
.icon-box svg{width:23px;height:23px;stroke:var(--brand);stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}
.card h3{font-size:18px;margin:16px 0 8px}
.card p{color:var(--ink-2);font-size:15px}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{
  font-size:13px;line-height:1.7;padding:3px 11px;border-radius:var(--r-pill);
  background:var(--brand-50);border:1px solid var(--brand-200);color:var(--brand);font-weight:500;
}
.tag--teal{background:var(--teal-50);border-color:#B9E3DC;color:#0E8175}

/* ---------- checklist ---------- */
.checklist{display:grid;gap:11px;margin-top:18px}
.checklist li{display:flex;gap:10px;color:var(--ink-2);font-size:15px;line-height:1.75}
.checklist svg{flex:0 0 auto;width:20px;height:20px;margin-top:4px;stroke:var(--teal);stroke-width:1.9;fill:none;stroke-linecap:round;stroke-linejoin:round}
.card-meta{
  display:flex;align-items:center;gap:8px;margin-top:20px;padding-top:16px;
  border-top:1px dashed var(--line);font-size:13px;color:var(--ink-3);
}
.card-meta svg{width:16px;height:16px;stroke:var(--ink-3);stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* ---------- steps ---------- */
.step-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:22px;box-shadow:var(--sh-1);position:relative;overflow:hidden;
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.step-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--brand-200)}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:11px;
  background:rgba(29,93,184,.12);color:var(--brand);
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.step-card h3{font-size:17px;margin-bottom:8px}
.step-card p{font-size:15px;color:var(--ink-2)}

/* ---------- sidebar note ---------- */
.note-band{
  display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-l);
  padding:30px 34px;box-shadow:var(--sh-1);
}
.note-band h3{font-size:20px;margin-bottom:10px}
.note-band p{color:var(--ink-2);font-size:15px}
.note-band ul{display:grid;gap:12px}
.note-band li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);align-items:flex-start}
.note-band li svg{flex:0 0 auto;width:20px;height:20px;margin-top:4px;stroke:var(--brand);stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--brand-50);border:1px solid var(--brand-200);
  border-radius:var(--r-l);padding:38px 40px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band h2{font-size:26px;margin-bottom:10px}
.cta-band p{color:var(--ink-2);font-size:15px;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;flex:0 0 auto}

/* ---------- faq ---------- */
.faq-wrap{display:grid;grid-template-columns:.85fr 1.15fr;gap:48px;align-items:start}
.faq-list{display:grid;gap:12px;max-width:640px}
.faq-list details{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-m);
  padding:18px 24px;box-shadow:var(--sh-1);position:relative;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-list details:hover{box-shadow:var(--sh-2);border-color:var(--brand-200)}
.faq-list details::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:0;
  background:var(--brand);border-radius:0 3px 3px 0;transition:width .2s ease;
}
.faq-list details[open]::before{width:3px}
.faq-list summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  cursor:pointer;font-size:17px;font-weight:600;color:var(--ink);list-style:none;
}
.faq-list summary::-webkit-details-marker{display:none}
.faq-list summary svg{
  flex:0 0 auto;width:20px;height:20px;stroke:var(--ink-3);stroke-width:1.9;
  fill:none;stroke-linecap:round;stroke-linejoin:round;transition:transform .2s ease;
}
.faq-list details[open] summary svg{transform:rotate(180deg);stroke:var(--brand)}
.faq-list .answer{padding-top:12px;color:var(--ink-2);font-size:15px}

/* ---------- back home ---------- */
.back-home{display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:center;padding:56px 0 0}
.back-home .hint{font-size:14px;color:var(--ink-3)}

/* ---------- footer ---------- */
.site-footer{background:#112741;color:#C7D5E5;margin-top:96px;padding:64px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.4fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .logo-mark{background:rgba(255,255,255,.10);border:1px solid rgba(255,255,255,.18)}
.footer-brand .logo-mark svg{stroke:#FFFFFF}
.footer-brand b{color:#FFFFFF;font-size:16px}
.site-footer p{color:#C7D5E5;font-size:14px;line-height:1.85}
.site-footer h4{color:#FFFFFF;font-size:15px;margin:0 0 16px;font-weight:600}
.footer-links{display:grid;gap:11px}
.footer-links a{color:#C7D5E5;font-size:14px}
.footer-links a:hover{color:#FFFFFF;text-decoration:underline;text-underline-offset:3px}
.footer-contact{display:grid;gap:12px}
.footer-contact li{display:flex;gap:10px;font-size:14px;align-items:flex-start;line-height:1.7}
.footer-contact svg{flex:0 0 auto;width:18px;height:18px;margin-top:4px;stroke:#7E9ABF;stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.fb-left{display:flex;flex-wrap:wrap;gap:18px;font-size:13px;color:#9FB4CE}
.to-top{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:#C7D5E5}
.to-top svg{width:18px;height:18px;stroke:currentColor;stroke-width:1.75;fill:none;stroke-linecap:round;stroke-linejoin:round}
.to-top:hover{color:#FFFFFF}

/* ---------- responsive ---------- */
@media (max-width:1120px){
  .hero-grid{gap:36px}
  .page-hero h1{font-size:34px}
  .grid-4{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px}
}
@media (max-width:1024px){
  :root{--header-h:64px}
  .nav-links,.header-cta{display:none}
  .nav-toggle{display:inline-flex}
  .hero-grid{grid-template-columns:1fr}
  .hero-media .shot img{aspect-ratio:16/10}
  .float-card{left:auto;right:16px;bottom:-18px}
  .section{padding:64px 0}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .faq-list{max-width:none}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px}
  .note-band{grid-template-columns:1fr;gap:22px}
}
@media (max-width:768px){
  .container{padding:0 18px}
  .page-hero{padding:24px 0 56px}
  .page-hero h1{font-size:29px}
  .hero-lead{font-size:16px}
  .hero-actions .btn{flex:1 1 220px}
  .hero-stats{gap:22px}
  .hero-stats strong{font-size:22px}
  .grid-2{grid-template-columns:1fr}
  .grid-4{grid-template-columns:1fr}
  .section{padding:52px 0}
  .section-head h2{font-size:24px}
  .cta-band h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%;width:100%}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .site-footer{margin-top:64px;padding:48px 0 20px}
}
@media (max-width:520px){
  .page-hero h1{font-size:25px}
  .card{padding:22px}
  .crumb-hide{display:none}
  .footer-grid{grid-template-columns:1fr}
  .float-card{position:static;margin-top:14px;left:0;right:auto;bottom:auto}
  .anchor-inner a{height:38px;padding:0 15px;font-size:14px}
}