/* roulang page: index */
:root{
  --brand:#1E5B8C;
  --brand-dark:#164A73;
  --brand-light:#E8F1F8;
  --jade:#2F9E8F;
  --jade-light:#E6F4F1;
  --amber:#D98324;
  --ink:#17222E;
  --ink-2:#4A5766;
  --ink-3:#8A97A6;
  --bg:#F5F8FA;
  --white:#FFFFFF;
  --line:#E3EAF1;
  --line-2:#EEF2F6;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-box:18px;
  --sh-1:0 1px 2px rgba(23,34,46,.05);
  --sh-2:0 8px 24px -14px rgba(30,91,140,.20);
  --sh-3:0 18px 40px -20px rgba(30,91,140,.30);
  --sp-section:104px;
  --c-gap:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-dark)}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--ink)}
p{margin:0}
input,textarea,select{font-family:inherit;font-size:16px}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.section{padding:var(--sp-section) 0}
.section--tight{padding:72px 0}
.section--plain{background:var(--white)}
.section--deep{background:var(--brand-dark);color:#DCE8F2}
.section--deep h2,.section--deep h3{color:#fff}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.94);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--line);
}
.nav-shell{display:flex;align-items:center;gap:28px;height:76px}
.logo{display:flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--ink)}
.logo:hover{color:var(--ink)}
.logo-mark{display:grid;grid-template-columns:repeat(2,9px);grid-template-rows:repeat(2,9px);gap:3px}
.logo-mark i{display:block;border-radius:3px;background:var(--brand)}
.logo-mark i:nth-child(2){background:var(--jade)}
.logo-mark i:nth-child(3){background:#5C93BC}
.logo-mark i:nth-child(4){background:var(--brand-light);border:1px solid #BBD3E6}
.logo-text{font-size:18px;font-weight:700;letter-spacing:.2px;line-height:1.15;white-space:nowrap}
.logo-sub{display:block;font-size:12px;font-weight:500;color:var(--ink-3);letter-spacing:2px}
.chip-seg{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center}
.chip{
  position:relative;display:inline-flex;align-items:center;height:36px;
  padding:0 14px;border-radius:999px;font-size:13.5px;font-weight:500;
  color:var(--ink-2);white-space:nowrap;transition:background .2s ease,color .2s ease
}
.chip:hover{background:#EDF2F7;color:var(--brand)}
.chip.is-active{background:var(--brand-light);color:var(--brand)}
.chip.is-active::after{
  content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;background:var(--brand)
}
.nav-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.nav-divider{width:1px;height:26px;background:var(--line)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:var(--r-btn);align-items:center;justify-content:center;flex-direction:column;gap:5px}
.nav-toggle span{display:block;width:20px;height:2px;border-radius:2px;background:var(--ink);transition:.25s}
.nav-toggle.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}
.nav-drawer{
  position:fixed;inset:76px 0 auto 0;z-index:55;background:var(--white);
  border-bottom:1px solid var(--line);box-shadow:var(--sh-2);
  padding:16px 18px 22px;display:none;max-height:calc(100vh - 76px);overflow:auto
}
.nav-drawer.is-open{display:block}
.nav-drawer .chip{display:flex;width:100%;height:46px;justify-content:flex-start;border-radius:var(--r-btn)}
.nav-drawer .chip.is-active::after{display:none}
.nav-drawer .btn{margin-top:14px;width:100%}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;line-height:1;border:1.5px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  white-space:nowrap
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{background:var(--amber);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark)}
.btn-link{
  display:inline-flex;align-items:center;gap:7px;font-size:14.5px;font-weight:500;
  color:var(--brand);padding:0
}
.btn-link i{transition:transform .2s ease}
.btn-link:hover i{transform:translateX(3px)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;background:var(--white);border-bottom:1px solid var(--line)}
.hero::after{
  content:"";position:absolute;right:-160px;top:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(30,91,140,.07) 0%,rgba(30,91,140,0) 68%);pointer-events:none
}
.hero-inner{display:grid;grid-template-columns:6fr 6fr;gap:56px;align-items:center;padding:78px 0 84px;position:relative;z-index:1}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:28px;padding:0 13px;border-radius:999px;
  background:var(--jade-light);color:#1F7568;font-size:13px;font-weight:500;margin-bottom:20px
}
.hero h1{font-size:46px;line-height:1.25;letter-spacing:.2px}
.hero h1 em{font-style:normal;color:var(--brand)}
.hero-sub{margin-top:20px;font-size:17px;color:var(--ink-2);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-note{margin-top:18px;font-size:14px;color:var(--ink-3);display:flex;align-items:center;gap:8px}
.hero-note i{color:var(--jade)}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-2)}
.hero-float{
  position:absolute;left:-26px;bottom:26px;width:270px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-3);padding:14px;display:flex;gap:12px;align-items:center
}
.hero-float img{width:58px;height:58px;aspect-ratio:1/1;border-radius:10px;object-fit:cover;box-shadow:none;flex:0 0 auto}
.hero-float strong{display:block;font-size:14.5px;line-height:1.5}
.hero-float span{display:block;font-size:12.5px;color:var(--ink-3);line-height:1.6;margin-top:2px}

/* ---------- stat bar ---------- */
.stat-bar{background:var(--white);border-bottom:1px solid var(--line)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);padding:34px 0}
.stat-item{padding:0 26px;border-left:1px solid var(--line-2)}
.stat-item:first-child{border-left:0;padding-left:0}
.stat-num{font-size:32px;font-weight:700;color:var(--brand);line-height:1.2}
.stat-num small{font-size:15px;font-weight:500;margin-left:3px}
.stat-label{font-size:14px;color:var(--ink-3);margin-top:4px}

/* ---------- section head ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:28px;margin-bottom:36px}
.sec-head-l{max-width:720px}
.sec-kicker{
  display:inline-block;font-size:13px;font-weight:500;color:var(--brand);
  letter-spacing:1.6px;margin-bottom:12px
}
.sec-head h2{font-size:32px;position:relative;padding-left:16px}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:3px;background:var(--brand)
}
.sec-desc{margin-top:14px;font-size:16.5px;color:var(--ink-2);padding-left:16px}

/* ---------- service grid ---------- */
.svc-row{display:grid;grid-template-columns:8fr 4fr;gap:var(--c-gap);margin-bottom:var(--c-gap)}
.card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease
}
.card:hover{box-shadow:var(--sh-2);transform:translateY(-3px);border-color:#C9DCEB}
.svc-main{padding:28px;display:grid;grid-template-columns:1fr 1fr;gap:26px;align-items:center}
.svc-main h3{font-size:20px;margin-bottom:12px}
.svc-main p{font-size:15.5px;color:var(--ink-2)}
.svc-list{margin-top:18px;display:grid;gap:9px}
.svc-list li{display:flex;gap:9px;font-size:14.5px;color:var(--ink-2)}
.svc-list i{color:var(--jade);margin-top:6px;font-size:12px}
.svc-main img{aspect-ratio:4/3;width:100%;object-fit:cover}
.svc-side{padding:26px 24px;display:flex;flex-direction:column}
.svc-side h3{font-size:18px;margin-bottom:16px}
.num-list{display:grid;gap:14px;flex:1}
.num-list li{display:flex;gap:12px;align-items:flex-start;padding-bottom:14px;border-bottom:1px dashed var(--line)}
.num-list li:last-child{border-bottom:0;padding-bottom:0}
.num-list .idx{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--brand-light);
  color:var(--brand);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-top:3px
}
.num-list strong{display:block;font-size:15px;font-weight:500}
.num-list span{display:block;font-size:13.5px;color:var(--ink-3);line-height:1.65}
.svc-narrow{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--c-gap)}
.svc-narrow .card{padding:26px 24px;display:flex;flex-direction:column;gap:12px}
.icon-badge{
  width:44px;height:44px;border-radius:12px;background:var(--brand-light);
  display:flex;align-items:center;justify-content:center;color:var(--brand);font-size:18px
}
.svc-narrow h3{font-size:17px}
.svc-narrow p{font-size:14.5px;color:var(--ink-2);flex:1}

/* ---------- scenarios ---------- */
.scene-list{display:grid;gap:0}
.scene{
  display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center;
  padding:36px 0;border-top:1px solid var(--line)
}
.scene:last-child{border-bottom:1px solid var(--line)}
.scene:nth-child(even) .scene-media{order:2}
.scene-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.scene-body h3{font-size:21px;margin-bottom:12px}
.scene-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-light);color:var(--brand);font-size:12.5px;font-weight:500;margin-bottom:14px
}
.scene-body p{font-size:15.5px;color:var(--ink-2);margin-bottom:14px}

/* ---------- cases ---------- */
.case-grid{display:grid;grid-template-columns:7fr 5fr;gap:var(--c-gap)}
.case-lead{padding:0;overflow:hidden;display:flex;flex-direction:column}
.case-lead img{aspect-ratio:16/9;width:100%;object-fit:cover;border-radius:var(--r-card) var(--r-card) 0 0}
.case-lead-body{padding:26px 28px 28px;display:flex;flex-direction:column;gap:14px;flex:1}
.case-lead h3{font-size:20px}
.case-quote{
  font-size:15.5px;color:var(--ink-2);border-left:3px solid var(--brand-light);
  padding-left:14px;font-style:normal
}
.case-metrics{display:flex;flex-wrap:wrap;gap:10px;margin-top:auto}
.metric-chip{
  display:inline-flex;align-items:center;gap:6px;height:28px;padding:0 12px;border-radius:999px;
  background:var(--jade-light);color:#1F7568;font-size:13px;font-weight:500
}
.case-side{display:grid;gap:var(--c-gap)}
.case-mini{padding:22px;display:flex;gap:16px;align-items:center}
.case-mini img{width:96px;height:96px;object-fit:cover;flex:0 0 auto;border-radius:10px}
.case-mini h3{font-size:16px;margin-bottom:8px}
.case-mini p{font-size:14px;color:var(--ink-3);line-height:1.7}

/* ---------- plans ---------- */
.switch{display:inline-flex;padding:4px;background:#EDF2F7;border-radius:999px;gap:4px}
.switch button{
  height:34px;padding:0 18px;border-radius:999px;font-size:13.5px;font-weight:500;
  color:var(--ink-2);transition:.2s
}
.switch button.is-active{background:var(--white);color:var(--brand);box-shadow:var(--sh-1)}
.plan-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--c-gap);margin-top:34px;align-items:start}
.plan{padding:30px 26px;display:flex;flex-direction:column;gap:18px;position:relative}
.plan--featured{border:2px solid var(--brand);box-shadow:var(--sh-3);transform:translateY(-8px)}
.plan--featured:hover{transform:translateY(-11px)}
.plan-flag{
  position:absolute;top:-13px;left:26px;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand);color:#fff;font-size:12.5px;display:inline-flex;align-items:center
}
.plan h3{font-size:18px}
.plan-for{font-size:14px;color:var(--ink-3);line-height:1.7}
.price-row{display:flex;align-items:flex-end;gap:6px;padding:14px 0 16px;border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.price-num{font-size:34px;font-weight:700;color:var(--brand);line-height:1}
.price-num.is-plain{font-size:28px}
.price-unit{font-size:14px;color:var(--ink-3);padding-bottom:4px}
.plan-check{display:grid;gap:10px;flex:1}
.plan-check li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2)}
.plan-check i{color:var(--jade);font-size:13px;margin-top:6px}
.plan .btn{width:100%}
.price-note{font-size:13px;color:var(--ink-3);line-height:1.7}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--c-gap)}
.news-card{padding:0;overflow:hidden;display:flex;flex-direction:column;cursor:pointer}
.news-card--lead{grid-column:span 2;grid-row:span 2}
.news-card img{aspect-ratio:16/9;width:100%;object-fit:cover;border-radius:var(--r-card) var(--r-card) 0 0}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:11px;flex:1}
.news-card--lead .news-body{padding:26px 28px 28px;gap:14px}
.news-meta{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.badge{
  display:inline-flex;align-items:center;height:25px;padding:0 11px;border-radius:999px;
  background:var(--jade-light);color:#1F7568;font-size:12.5px;font-weight:500
}
.time-chip{font-size:13px;color:var(--ink-3);display:inline-flex;align-items:center;gap:6px}
.news-card h3{font-size:16.5px;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card--lead h3{font-size:21px}
.news-card p{font-size:14px;color:var(--ink-3);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between}
.news-foot .more{font-size:13.5px;font-weight:500;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.news-card:hover .more i{transform:translateX(3px)}
.more i{transition:transform .2s ease}
.empty-state{
  grid-column:1/-1;background:var(--white);border:1px dashed var(--line);border-radius:var(--r-card);
  padding:64px 24px;text-align:center;color:var(--ink-3)
}
.empty-state i{font-size:26px;color:#B8C7D5;display:block;margin-bottom:14px}
.empty-state p{font-size:15px}
.skeleton-card{background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.skeleton-card .sk-img{aspect-ratio:16/9;background:#EDF2F7;animation:breathe 1.6s ease-in-out infinite}
.skeleton-card .sk-body{padding:20px 22px 24px}
.skeleton-card .sk-line{height:12px;border-radius:6px;background:#EDF2F7;margin-bottom:12px;animation:breathe 1.6s ease-in-out infinite}
.skeleton-card .sk-line.w60{width:60%}
@keyframes breathe{0%,100%{opacity:1}50%{opacity:.5}}

/* ---------- faq ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:var(--r-card);background:var(--white);margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.is-open{border-color:#C9DCEB;box-shadow:var(--sh-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  text-align:left;padding:19px 22px;font-size:17px;font-weight:500;color:var(--ink);line-height:1.6
}
.faq-q i{color:var(--brand);font-size:14px;transition:transform .25s ease;flex:0 0 auto}
.faq-item.is-open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 22px 22px;font-size:15px;color:var(--ink-2);border-left:3px solid var(--brand-light);margin-left:0}

/* ---------- cta form ---------- */
.cta-box{
  display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-box);
  padding:44px;box-shadow:var(--sh-2)
}
.cta-box h2{font-size:30px;line-height:1.35}
.cta-box .lead{margin-top:16px;font-size:16px;color:var(--ink-2)}
.cta-points{margin-top:24px;display:grid;gap:11px}
.cta-points li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-2)}
.cta-points i{color:var(--jade);margin-top:6px;font-size:12px}
.form-grid{display:grid;gap:18px}
.field{display:grid;gap:8px}
.field label{font-size:13px;font-weight:500;color:var(--ink-2)}
.field label .req{color:var(--amber);margin-left:3px}
.field input,.field textarea{
  width:100%;padding:12px 14px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#FBFDFE;color:var(--ink);transition:border-color .2s ease,box-shadow .2s ease,background .2s ease
}
.field input{height:48px}
.field textarea{min-height:104px;resize:vertical;line-height:1.7}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(30,91,140,.12)
}
.field.has-error input,.field.has-error textarea{border-color:#C9453B;background:#FFF9F8}
.field .err{font-size:12px;color:#C9453B;display:none}
.field.has-error .err{display:block}
.form-tip{font-size:13px;color:var(--ink-3)}
.form-alert{
  display:none;align-items:center;gap:10px;padding:12px 15px;border-radius:var(--r-btn);
  background:var(--jade-light);color:#1F7568;font-size:14px
}
.form-alert.is-show{display:flex}

/* ---------- footer ---------- */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:4fr 2.5fr 2.5fr 3fr;gap:40px}
.foot-brand p{margin-top:16px;font-size:14px;color:var(--ink-3);line-height:1.8;max-width:300px}
.foot-title{font-size:14.5px;font-weight:700;margin-bottom:18px}
.foot-links{display:grid;gap:11px}
.foot-links a{font-size:14px;color:var(--ink-2)}
.foot-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.foot-contact{display:grid;gap:14px;font-size:14px;color:var(--ink-2)}
.foot-contact li{display:flex;gap:10px;line-height:1.7}
.foot-contact i{color:var(--brand);margin-top:5px;font-size:13px}
.qr-slot{
  width:104px;height:104px;border:1px dashed var(--line);border-radius:12px;background:#fff;
  display:flex;align-items:center;justify-content:center;color:var(--ink-3);font-size:12.5px;text-align:center;line-height:1.6
}
.foot-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3)
}
.foot-bottom a{color:var(--ink-3)}
.foot-bottom a:hover{color:var(--brand)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  :root{--sp-section:88px}
  .hero h1{font-size:42px}
}
@media (max-width:1023px){
  :root{--sp-section:76px}
  .container{padding:0 24px}
  .hero-inner{grid-template-columns:1fr;gap:40px;padding:56px 0 64px}
  .hero-visual img{aspect-ratio:16/10}
  .hero-float{left:16px;bottom:-18px;width:250px}
  .stat-grid{grid-template-columns:repeat(2,1fr);gap:22px 0;padding:28px 0}
  .stat-item:nth-child(odd){border-left:0;padding-left:0}
  .svc-row{grid-template-columns:1fr}
  .svc-narrow{grid-template-columns:1fr}
  .case-grid{grid-template-columns:1fr}
  .plan-grid{grid-template-columns:1fr}
  .plan--featured{transform:none}
  .plan--featured:hover{transform:translateY(-3px)}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .news-card--lead{grid-column:span 2;grid-row:auto}
  .cta-box{grid-template-columns:1fr;gap:32px;padding:34px}
  .scene{grid-template-columns:1fr;gap:24px;padding:30px 0}
  .scene:nth-child(even) .scene-media{order:0}
  .foot-grid{grid-template-columns:repeat(2,1fr);gap:34px}
}
@media (max-width:992px){
  .chip-seg .chip:nth-child(4){display:none}
}
@media (max-width:767px){
  body{font-size:16px}
  :root{--sp-section:56px;--c-gap:16px}
  .container{padding:0 18px}
  .chip-seg{display:none}
  .nav-actions .btn{display:none}
  .nav-toggle{display:flex}
  .nav-shell{height:66px;gap:14px}
  .nav-drawer{inset:66px 0 auto 0}
  .logo-text{font-size:16.5px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-cta .btn{width:100%}
  .hero-float{position:static;width:100%;margin-top:-28px;margin-left:12px;margin-right:12px;width:calc(100% - 24px)}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;margin-bottom:26px}
  .sec-head h2{font-size:24px}
  .sec-desc{padding-left:0;font-size:15.5px}
  .sec-head h2::before{top:4px;bottom:4px}
  .svc-main{padding:22px;grid-template-columns:1fr;gap:20px}
  .svc-main img{order:-1}
  .stat-num{font-size:26px}
  .news-grid{grid-template-columns:1fr}
  .news-card--lead{grid-column:auto}
  .news-card--lead h3{font-size:18px}
  .case-mini{flex-direction:column;align-items:flex-start}
  .case-mini img{width:100%;height:auto;aspect-ratio:16/9}
  .plan-grid{margin-top:26px}
  .faq-q{font-size:16px;padding:17px 18px}
  .faq-a-inner{padding:0 18px 20px}
  .cta-box{padding:24px;border-radius:var(--r-card)}
  .cta-box h2{font-size:24px}
  .cta-box .btn{width:100%}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .foot-bottom{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (max-width:520px){
  .hero h1{font-size:27px}
  .btn{height:48px}
  .stat-grid{padding:22px 0}
  .stat-item{padding:0 14px}
}

/* roulang page: article */
:root{
  --brand:#1E5B8C;
  --brand-deep:#164A73;
  --brand-soft:#E8F1F8;
  --teal:#2F9E8F;
  --teal-soft:#E6F5F2;
  --amber:#D98324;
  --ink:#17222E;
  --ink-2:#4A5766;
  --ink-3:#8A97A6;
  --page:#F5F8FA;
  --card:#FFFFFF;
  --line:#E3EAF1;
  --line-2:#EEF2F6;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-block:18px;
  --sh-1:0 1px 2px rgba(23,34,46,.05);
  --sh-2:0 8px 24px -14px rgba(30,91,140,.20);
  --sh-3:0 18px 40px -20px rgba(30,91,140,.30);
  --sp-1:8px; --sp-2:16px; --sp-3:24px; --sp-4:32px; --sp-5:48px; --sp-6:72px; --sp-7:96px;
  --font:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font);
  font-weight:400;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-deep)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid var(--amber);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);letter-spacing:.2px}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;cursor:pointer;border:0;background:none}
.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
.section{padding:96px 0}
.section-sm{padding:64px 0}
.sec-head{margin-bottom:32px}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--teal);
  background:var(--teal-soft);border-radius:999px;padding:5px 14px;margin-bottom:14px;font-weight:500;
}
.sec-head h2{font-size:32px;line-height:1.3}
.sec-head .sub{margin-top:12px;color:var(--ink-2);font-size:16px;max-width:760px}
.tick{width:3px;height:22px;background:var(--brand);border-radius:2px;display:inline-block;vertical-align:-3px;margin-right:12px}

/* header */
.site-header{
  position:sticky;top:0;z-index:60;background:rgba(255,255,255,.94);
  backdrop-filter:blur(10px);border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;align-items:center;gap:24px;min-height:76px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:34px;height:34px;border-radius:9px;background:var(--brand);
  display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;gap:3px;padding:7px;
}
.logo-mark i{display:block;background:#fff;border-radius:2px;opacity:.92}
.logo-mark i:nth-child(2){opacity:.6}
.logo-mark i:nth-child(3){opacity:.6}
.logo-text{font-size:18px;font-weight:700;color:var(--ink);line-height:1.1;display:flex;flex-direction:column}
.logo-sub{font-size:12px;font-weight:400;color:var(--ink-3);letter-spacing:3px}
.chip-seg{
  display:flex;align-items:center;gap:4px;margin-left:auto;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;padding:4px;
}
.chip-seg::-webkit-scrollbar{display:none}
.chip{
  height:36px;display:inline-flex;align-items:center;padding:0 14px;border-radius:9px;
  font-size:14px;color:var(--ink-2);white-space:nowrap;position:relative;transition:background .2s ease,color .2s ease;
}
.chip:hover{background:#F1F5F9;color:var(--brand-deep)}
.chip.is-active{background:var(--brand-soft);color:var(--brand-deep);font-weight:500}
.chip.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-4px;height:2px;background:var(--brand);border-radius:2px;
}
.head-cta{margin-left:20px;padding-left:20px;border-left:1px solid var(--line);flex-shrink:0}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:500;
  transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-1)}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-ghost{border:1.5px solid var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:500;color:var(--brand)}
.link-arrow i{transition:transform .2s ease}
.link-arrow:hover i{transform:translateX(3px)}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line);color:var(--ink-2);align-items:center;justify-content:center;font-size:18px}

/* breadcrumb + banner */
.page-banner{
  background:linear-gradient(0deg,rgba(232,241,248,.85),rgba(232,241,248,.85)),
  url("/assets/images/backpic/back-2.png") center/cover no-repeat;
  border-bottom:1px solid var(--line);
  padding:34px 0 44px;
}
.crumb{font-size:13px;color:var(--ink-3);display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb a{color:var(--ink-3)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{color:#C8D4DF}
.crumb .now{color:var(--ink-2);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.banner-note{margin-top:18px;color:var(--ink-2);font-size:15px;max-width:720px}

/* article layout */
.layout{
  display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:48px;
  padding:56px 0 40px;align-items:start;
}
.article-head{border-bottom:1px solid var(--line);padding-bottom:28px}
.chip-tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  font-size:12.5px;font-weight:500;background:var(--teal-soft);color:#1F7268;
}
.article-head h1{
  font-size:44px;line-height:1.25;margin:16px 0 0;letter-spacing:.3px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;margin-top:18px;
  font-size:14px;color:var(--ink-3);
}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row i{color:var(--brand);font-size:14px}

.prose{font-size:16.5px;line-height:1.85;color:#243140;margin-top:32px}
.prose > *:first-child{margin-top:0}
.prose p{margin:0 0 18px}
.prose h2{
  font-size:27px;line-height:1.35;margin:40px 0 16px;padding-left:14px;position:relative;
}
.prose h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;background:var(--brand);border-radius:2px}
.prose h3{font-size:20px;line-height:1.45;margin:28px 0 12px}
.prose h4{font-size:17px;margin:22px 0 10px}
.prose ul,.prose ol{margin:0 0 20px;padding-left:20px}
.prose ul{list-style:disc}
.prose ol{list-style:decimal}
.prose li{margin:8px 0;line-height:1.8}
.prose li::marker{color:var(--brand)}
.prose blockquote{
  margin:24px 0;padding:16px 22px;background:var(--brand-soft);
  border-left:4px solid var(--brand);border-radius:0 var(--r-card) var(--r-card) 0;color:#233648;
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:10px;margin:22px 0 10px}
.prose figcaption,.prose .caption{font-size:13px;color:var(--ink-3);text-align:center;margin-bottom:22px}
.prose table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px;display:block;overflow-x:auto}
.prose th,.prose td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.prose th{background:#F4F8FB;font-weight:500}
.prose code{background:#F1F5F9;padding:2px 6px;border-radius:6px;font-size:14px;font-family:ui-monospace,Menlo,Consolas,monospace}
.prose pre{background:#F1F5F9;border-radius:var(--r-img);padding:18px;overflow-x:auto;font-size:13px;line-height:1.7}
.prose a{border-bottom:1px solid rgba(30,91,140,.35)}

.inline-cta{
  margin:34px 0;padding:20px 24px;background:var(--brand-soft);border-radius:var(--r-card);
  display:flex;flex-wrap:wrap;align-items:center;gap:16px;justify-content:space-between;
}
.inline-cta p{margin:0;font-size:15.5px;color:#22384A}
.empty-box{
  border:1px dashed var(--line);border-radius:var(--r-card);background:var(--card);
  padding:56px 24px;text-align:center;color:var(--ink-2);
}
.empty-box i{font-size:34px;color:var(--brand);display:block;margin-bottom:14px}
.empty-box p{margin:0 0 18px}

/* sidebar */
.side-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px;box-shadow:var(--sh-1);margin-bottom:22px;
}
.side-card h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:9px}
.side-card h3 i{color:var(--brand)}
.side-list li+li{border-top:1px solid var(--line-2)}
.side-list a{display:block;padding:12px 0;font-size:15px;color:var(--ink);font-weight:400}
.side-list a:hover{color:var(--brand)}
.side-list .t{display:block;line-height:1.6}
.side-list .d{display:block;font-size:13px;color:var(--ink-3);margin-top:5px}
.side-cta{background:var(--brand);border-color:var(--brand)}
.side-cta h3,.side-cta p{color:#fff}
.side-cta p{font-size:14.5px;line-height:1.75;margin-bottom:16px;color:rgba(255,255,255,.86)}
.side-cta .btn{width:100%;background:#fff;color:var(--brand-deep)}
.side-cta .btn:hover{background:var(--brand-soft);color:var(--brand-deep)}
.side-cta h3 i{color:#fff}

/* related cards */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px}
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-2);transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#CFE0EE}
.card .thumb{aspect-ratio:16/9;overflow:hidden;background:#EDF3F8}
.card .thumb img{width:100%;height:100%;object-fit:cover}
.card .body{padding:20px 22px 22px}
.card .body h3{font-size:18px;line-height:1.5;margin:10px 0 8px}
.card .body h3 a{color:var(--ink)}
.card .body h3 a:hover{color:var(--brand)}
.card .body p{font-size:14.5px;line-height:1.75;color:var(--ink-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card .body .foot{margin-top:14px;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3)}
.back-line{margin-top:30px;font-size:14.5px}

/* faq */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item[open]{border-color:#CFE0EE;box-shadow:var(--sh-2)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;font-size:17px;font-weight:500;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--brand);transition:transform .2s ease}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item .ans{padding:0 22px 20px;font-size:15px;color:var(--ink-2);line-height:1.8}

/* CTA */
.cta-block{
  background:var(--brand);border-radius:var(--r-block);padding:48px;color:#fff;
  display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;
}
.cta-block h2{color:#fff;font-size:28px;line-height:1.35}
.cta-block p{margin-top:12px;font-size:15.5px;color:rgba(255,255,255,.85);max-width:420px}
.form-grid{display:grid;gap:14px}
.field label{display:block;font-size:13px;color:rgba(255,255,255,.85);margin-bottom:7px}
.field label .req{color:var(--amber);margin-left:4px}
.field input,.field textarea{
  width:100%;height:48px;border-radius:10px;border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.10);color:#fff;padding:0 14px;font-size:15px;font-family:inherit;
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.field textarea{height:96px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:rgba(255,255,255,.55)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:#fff;background:rgba(255,255,255,.16);box-shadow:0 0 0 3px rgba(255,255,255,.16);
}
.cta-block .btn-primary{background:#fff;color:var(--brand-deep);width:100%}
.cta-block .btn-primary:hover{background:var(--brand-soft);color:var(--brand-deep)}
.form-hint{font-size:12.5px;color:rgba(255,255,255,.7);margin-top:10px}

/* footer */
.site-footer{background:var(--page);border-top:1px solid var(--line);padding:64px 0 26px;margin-top:88px}
.foot-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px}
.foot-brand p{margin-top:16px;font-size:14px;color:var(--ink-2);line-height:1.8;max-width:340px}
.foot-title{font-size:15px;margin-bottom:16px}
.foot-links li{margin-bottom:10px}
.foot-links a{font-size:14px;color:var(--ink-2)}
.foot-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.foot-contact li{font-size:14px;color:var(--ink-2);margin-bottom:10px;display:flex;gap:9px;line-height:1.7}
.foot-contact i{color:var(--brand);margin-top:5px}
.qr-slot{
  border:1px dashed var(--line);border-radius:10px;background:#fff;color:var(--ink-3);
  font-size:12.5px;height:76px;display:flex;align-items:center;justify-content:center;text-align:center;padding:0 12px;
}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:var(--ink-3);
}
.foot-bottom a{color:var(--ink-3)}
.foot-bottom a:hover{color:var(--brand)}

@media (max-width:1279px){
  .article-head h1{font-size:40px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .layout{grid-template-columns:1fr;gap:32px;padding:48px 0 32px}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-block{grid-template-columns:1fr;padding:36px}
  .chip-seg{display:none}
  .nav-toggle{display:inline-flex}
  .head-cta{margin-left:auto;padding-left:0;border-left:0}
  .site-header.open .chip-seg{
    display:flex;flex-direction:column;align-items:stretch;position:absolute;left:0;right:0;top:100%;
    background:#fff;border-bottom:1px solid var(--line);padding:14px 24px 20px;gap:6px;box-shadow:var(--sh-2);
  }
  .site-header{position:sticky}
  .header-inner{position:relative;flex-wrap:wrap}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:48px 0}
  .sec-head h2{font-size:24px}
  .article-head h1{font-size:30px}
  .layout{padding:36px 0 24px}
  .prose h2{font-size:22px;margin-top:32px}
  .prose h3{font-size:18px}
  .related-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:28px}
  .cta-block{padding:26px 20px;border-radius:16px}
  .head-cta .btn{display:none}
  .page-banner{padding:26px 0 32px}
  .crumb .now{max-width:100%;white-space:normal}
}
@media (max-width:520px){
  .logo-text{font-size:16px}
  .logo-sub{letter-spacing:2px}
  .inline-cta{flex-direction:column;align-items:flex-start}
  .inline-cta .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --brand:#1E5B8C;
  --brand-deep:#164A73;
  --brand-light:#E8F1F8;
  --brand-line:#CFE0EE;
  --jade:#2F9E8F;
  --jade-light:#E6F5F2;
  --accent:#D98324;
  --ink:#17222E;
  --ink-2:#4A5766;
  --ink-3:#8A97A6;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --line:#E3EAF1;
  --divider:#EEF2F6;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-pill:999px;
  --r-input:10px;
  --r-block:18px;
  --sh-base:0 1px 2px rgba(23,34,46,.05);
  --sh-card:0 8px 24px -14px rgba(30,91,140,.20);
  --sh-hover:0 18px 40px -20px rgba(30,91,140,.30);
  --sec:104px;
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .22s ease,background-color .22s ease,transform .22s ease}
a:hover{color:var(--brand-deep)}
button,input,textarea,select{font:inherit;color:inherit}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink)}
p{margin:0}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
::selection{background:var(--brand-light);color:var(--brand-deep)}

.container{max-width:var(--container);margin:0 auto;padding:0 32px;width:100%}
.sec{padding:var(--sec) 0}
.sec-white{background:#fff}
.sec-gray{background:var(--bg)}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-base);
}
.header-inner{display:flex;align-items:center;gap:26px;height:74px}
.logo{display:inline-flex;align-items:center;gap:12px;color:var(--ink);flex:none}
.logo:hover{color:var(--ink)}
.logo-mark{
  width:36px;height:36px;border-radius:10px;flex:none;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  display:grid;grid-template-columns:1fr 1fr;grid-template-rows:1fr 1fr;
  gap:3px;padding:8px;
}
.logo-mark i{display:block;background:rgba(255,255,255,.86);border-radius:2px}
.logo-text{display:flex;flex-direction:column;line-height:1.1;font-size:18px;font-weight:700;letter-spacing:.01em}
.logo-sub{font-size:11.5px;font-weight:500;color:var(--brand);letter-spacing:.18em;margin-top:3px}

.header-nav{flex:1;min-width:0;display:flex;justify-content:center}
.chip-seg{
  display:flex;align-items:center;gap:6px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
  padding:6px;border-radius:var(--r-pill);
  background:#F7FAFC;border:1px solid var(--line);
  max-width:100%;
}
.chip-seg::-webkit-scrollbar{display:none}
.chip{
  position:relative;
  display:inline-flex;align-items:center;justify-content:center;
  height:36px;padding:0 15px;border-radius:var(--r-pill);
  font-size:13.5px;font-weight:500;color:var(--ink-2);
  white-space:nowrap;flex:none;
  transition:background-color .2s ease,color .2s ease;
}
.chip::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%) scaleX(0);
  width:18px;height:2px;border-radius:2px;background:var(--brand);
  transition:transform .22s ease;
}
.chip:hover{background:#EDF2F7;color:var(--brand-deep)}
.chip.is-active{background:var(--brand-light);color:var(--brand);font-weight:700}
.chip.is-active::after{transform:translateX(-50%) scaleX(1)}

.header-right{display:flex;align-items:center;gap:18px;flex:none}
.header-right::before{content:"";width:1px;height:26px;background:var(--line)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--brand);
  cursor:pointer;align-items:center;justify-content:center;font-size:17px;
  transition:background-color .2s ease,border-color .2s ease;
}
.nav-toggle:hover{background:var(--brand-light);border-color:var(--brand-line)}

.nav-drawer{
  display:none;background:#fff;border-bottom:1px solid var(--line);
  box-shadow:0 18px 40px -28px rgba(30,91,140,.35);
  padding:14px 0 20px;
}
.nav-drawer.is-open{display:block}
.nav-drawer .container{display:grid;gap:8px}
.nav-drawer .chip{height:46px;justify-content:flex-start;padding:0 16px;border:1px solid var(--line);border-radius:12px;font-size:15px}
.nav-drawer .chip::after{display:none}
.nav-drawer .btn{margin-top:8px;width:100%}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:500;border:1.5px solid transparent;
  cursor:pointer;white-space:nowrap;text-align:center;
  transition:background-color .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn i{font-size:13px}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-card)}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-hover)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{border-color:var(--brand);color:var(--brand);background:transparent}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-deep)}
.btn-light{background:#fff;color:var(--brand-deep);border-color:transparent}
.btn-light:hover{background:#EAF2F9;color:var(--brand-deep)}
.btn:disabled{opacity:.45;pointer-events:none}

.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:500;color:var(--brand)}
.link-arrow::after{content:"→";transition:transform .22s ease}
.link-arrow:hover::after{transform:translateX(3px)}

.tag{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12.5px;font-weight:500;
  background:var(--jade-light);color:#1F7A6E;white-space:nowrap;
}
.tag-brand{background:var(--brand-light);color:var(--brand)}
.tag-line{background:#fff;border:1px solid var(--line);color:var(--ink-2)}

/* ============ 面包屑 ============ */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-bottom:22px}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb span.sep{color:#C6D2DD}

/* ============ 首屏 ============ */
.page-hero{background:#fff;border-bottom:1px solid var(--line);padding:52px 0 78px;position:relative;overflow:hidden}
.page-hero::after{
  content:"";position:absolute;right:-130px;top:-130px;width:460px;height:460px;border-radius:50%;
  background:radial-gradient(circle,rgba(30,91,140,.06) 0%,rgba(30,91,140,0) 70%);
  pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.04fr .96fr;gap:56px;align-items:center;position:relative;z-index:1}
.hero-copy h1{font-size:clamp(30px,4vw,48px);line-height:1.25;letter-spacing:-.01em;margin-bottom:20px}
.hero-lead{max-width:760px;font-size:17px;color:var(--ink-2);line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-trust{display:flex;align-items:center;gap:9px;margin-top:22px;font-size:14px;color:var(--ink-3)}
.hero-trust i{color:var(--jade)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-card)}
.float-card{
  position:absolute;left:-22px;bottom:-26px;
  display:flex;align-items:center;gap:12px;
  background:#fff;border:1px solid var(--line);border-radius:12px;
  padding:12px 16px 12px 12px;box-shadow:var(--sh-card);max-width:290px;
}
.float-card img{width:56px;height:56px;aspect-ratio:1/1;border-radius:9px;object-fit:cover;box-shadow:none;flex:none}
.float-card strong{display:block;font-size:14px;line-height:1.5;font-weight:700;color:var(--ink)}
.float-card span{display:block;font-size:12.5px;color:var(--ink-3);line-height:1.5}

/* ============ 指标条 ============ */
.metrics{background:#fff;border:1px solid var(--line);border-radius:var(--r-block);box-shadow:var(--sh-card);padding:30px 8px;margin-top:-42px;position:relative;z-index:3}
.metrics-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.metric{padding:6px 26px;border-right:1px solid var(--divider)}
.metric:last-child{border-right:none}
.metric b{display:block;font-size:30px;font-weight:700;color:var(--brand);line-height:1.2;letter-spacing:-.01em}
.metric b em{font-size:15px;font-style:normal;font-weight:500;color:var(--brand);margin-left:3px}
.metric span{display:block;margin-top:8px;font-size:14px;color:var(--ink-3);line-height:1.6}

/* ============ 板块标题 ============ */
.sec-title{position:relative;padding-left:16px;font-size:clamp(24px,3vw,32px);line-height:1.32;margin-bottom:16px}
.sec-title::before{content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:3px;border-radius:3px;background:var(--brand)}
.sec-desc{max-width:780px;color:var(--ink-2);font-size:16.5px}
.sec-head{margin-bottom:36px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--brand);letter-spacing:.06em;margin-bottom:14px}
.eyebrow::before{content:"";width:16px;height:2px;border-radius:2px;background:var(--brand)}

/* ============ 业务版图 ============ */
.overview-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr) 316px;gap:24px;align-items:start}
.biz-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.biz-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:var(--brand-line)}
.biz-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.biz-card-img{aspect-ratio:16/10 !important}
.biz-body{padding:24px 24px 26px;display:flex;flex-direction:column;gap:14px;flex:1}
.biz-body h3{font-size:20px;line-height:1.4}
.biz-body p{font-size:15.5px;color:var(--ink-2);line-height:1.8}
.point-list{list-style:none;display:grid;gap:10px;margin-top:2px}
.point-list li{position:relative;padding-left:26px;font-size:15px;color:var(--ink-2);line-height:1.75}
.point-list li::before{
  content:"";position:absolute;left:0;top:.58em;width:12px;height:7px;
  border-left:2px solid var(--jade);border-bottom:2px solid var(--jade);
  transform:rotate(-45deg);border-radius:1px;
}
.info-rail{display:grid;gap:16px}
.rail-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px;box-shadow:var(--sh-base)}
.rail-card h3{font-size:16px;margin-bottom:12px;display:flex;align-items:center;gap:8px}
.rail-card h3 i{color:var(--jade);font-size:15px}
.rail-card ul{list-style:none;display:grid;gap:9px}
.rail-card li{font-size:14.5px;color:var(--ink-2);line-height:1.7;padding-left:14px;position:relative}
.rail-card li::before{content:"";position:absolute;left:0;top:.68em;width:5px;height:5px;border-radius:50%;background:var(--brand-line)}

/* ============ 对比 ============ */
.compare-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:start}
.compare-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:30px;box-shadow:var(--sh-base);position:relative;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.compare-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover)}
.compare-card.is-featured{background:var(--brand-light);border:2px solid var(--brand);box-shadow:var(--sh-card)}
.compare-card h3{font-size:20px;margin-bottom:10px}
.compare-card .sub{font-size:14.5px;color:var(--ink-2);margin-bottom:20px}
.compare-list{list-style:none;display:grid;gap:12px;border-top:1px solid var(--divider);padding-top:20px}
.compare-card.is-featured .compare-list{border-top-color:#D3E4F1}
.compare-list li{display:flex;gap:12px;font-size:15px;color:var(--ink-2);line-height:1.7}
.compare-list i{color:var(--brand);font-size:15px;margin-top:6px;flex:none}
.compare-card.is-featured .compare-list i{color:var(--jade)}
.badge-rec{
  position:absolute;top:-13px;right:24px;
  display:inline-flex;align-items:center;height:26px;padding:0 13px;
  border-radius:var(--r-pill);background:var(--accent);color:#fff;
  font-size:12.5px;font-weight:500;box-shadow:0 8px 18px -10px rgba(217,131,36,.8);
}

/* ============ 非对称板块 ============ */
.split{display:grid;grid-template-columns:1.12fr .88fr;gap:44px;align-items:center}
.num-list{list-style:none;display:grid;gap:22px;margin-top:8px}
.num-list li{display:flex;gap:20px;padding:22px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-base);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease}
.num-list li:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:var(--brand-line)}
.num-list .num{font-size:30px;font-weight:700;color:#C9DCEC;line-height:1;flex:none;min-width:46px;letter-spacing:-.02em}
.num-list h3{font-size:17px;margin-bottom:6px}
.num-list p{font-size:15px;color:var(--ink-2);line-height:1.75}
.side-panel{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-card);overflow:hidden}
.side-panel img{width:100%;aspect-ratio:16/10;object-fit:cover}
.side-panel-body{padding:26px}
.side-panel-body h3{font-size:19px;margin-bottom:12px}
.side-panel-body p{font-size:15.5px;color:var(--ink-2)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-base);overflow:hidden;transition:border-color .22s ease,box-shadow .22s ease}
.faq-item + .faq-item{margin-top:12px}
.faq-item summary{
  list-style:none;cursor:pointer;min-height:60px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 26px;font-size:17px;font-weight:500;color:var(--ink);
  transition:color .22s ease,box-shadow .22s ease,background-color .22s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"";width:9px;height:9px;flex:none;margin-right:3px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .25s ease;
}
.faq-item summary:hover{color:var(--brand-deep);background:#FBFDFE}
.faq-item[open]{border-color:var(--brand-line);box-shadow:var(--sh-card)}
.faq-item[open] summary{color:var(--brand-deep);box-shadow:inset 3px 0 0 var(--brand)}
.faq-item[open] summary::after{transform:rotate(-135deg)}
.faq-answer{padding:2px 26px 22px;font-size:15px;color:var(--ink-2);line-height:1.85;border-top:1px solid var(--divider);padding-top:16px;margin:0 26px 22px;padding-left:0;padding-right:0}

/* ============ 底部 CTA ============ */
.cta-band{background:var(--brand-deep);color:#fff;padding:88px 0}
.cta-grid{display:grid;grid-template-columns:.92fr 1.08fr;gap:56px;align-items:center}
.cta-band h2{color:#fff;font-size:clamp(24px,3vw,32px);line-height:1.32;margin-bottom:16px}
.cta-band p{color:rgba(255,255,255,.78);font-size:16px;line-height:1.8;max-width:460px}
.cta-points{list-style:none;display:grid;gap:12px;margin-top:26px}
.cta-points li{display:flex;align-items:center;gap:11px;font-size:15px;color:rgba(255,255,255,.86)}
.cta-points i{color:#7FD8CB;font-size:14px}
.form-card{background:#fff;border-radius:var(--r-block);padding:32px;box-shadow:0 30px 60px -30px rgba(10,30,50,.5)}
.form-card h3{font-size:18px;margin-bottom:20px;color:var(--ink)}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:8px}
.field label .req{color:var(--accent);margin-left:3px}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-input);
  background:#fff;color:var(--ink);transition:border-color .2s ease,box-shadow .2s ease;
}
.field input{height:48px;padding:0 14px}
.field textarea{min-height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#AEB9C4}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(30,91,140,.12)}
.form-card .btn{width:100%;height:48px}
.form-note{margin-top:14px;font-size:13px;color:var(--ink-3);line-height:1.7}
.form-success{
  display:none;margin-top:16px;padding:12px 14px;border-radius:10px;
  background:var(--jade-light);color:#1F7A6E;font-size:14px;line-height:1.7;
  border:1px solid #C9E9E3;
}
.form-success.is-visible{display:block}

/* ============ 同域互推 ============ */
.cross-links{border-top:1px solid var(--divider);padding-top:26px;margin-top:8px;display:flex;flex-wrap:wrap;align-items:center;gap:18px;font-size:14.5px;color:var(--ink-3)}
.cross-links a{display:inline-flex;align-items:center;gap:6px;font-weight:500}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg);border-top:1px solid var(--line);padding:64px 0 26px}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.foot-brand .logo{margin-bottom:18px}
.foot-brand p{font-size:14px;color:var(--ink-2);line-height:1.85;max-width:330px}
.foot-title{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:16px}
.foot-links,.foot-contact{list-style:none;display:grid;gap:11px}
.foot-links a{font-size:14px;color:var(--ink-2)}
.foot-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.foot-contact li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);line-height:1.7}
.foot-contact i{color:var(--brand);margin-top:6px;flex:none;font-size:13px}
.qr-slot{
  display:flex;align-items:center;justify-content:center;text-align:center;
  width:118px;height:118px;border:1px dashed var(--brand-line);border-radius:12px;
  background:#fff;font-size:12.5px;color:var(--ink-3);padding:12px;line-height:1.6;
}
.foot-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:var(--ink-3);
}
.foot-bottom a{color:var(--ink-3)}
.foot-bottom a:hover{color:var(--brand)}

/* ============ 响应式 ============ */
@media (max-width:1180px){
  .overview-grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr) 280px}
  .hero-grid{gap:40px}
}
@media (max-width:1024px){
  :root{--sec:76px}
  .header-nav{display:none}
  .nav-toggle{display:inline-flex}
  .header-right::before{display:none}
  .header-right .btn{display:none}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{max-width:620px}
  .float-card{left:auto;right:14px;bottom:-22px}
  .metrics{margin-top:-30px}
  .metrics-grid{grid-template-columns:repeat(2,1fr);gap:4px}
  .metric{border-right:none;border-bottom:1px solid var(--divider);padding:16px 22px}
  .metric:nth-child(odd){border-right:1px solid var(--divider)}
  .metric:nth-child(n+3){border-bottom:none}
  .overview-grid{grid-template-columns:1fr 1fr}
  .info-rail{grid-column:1/-1;grid-template-columns:repeat(3,1fr)}
  .split{grid-template-columns:1fr;gap:30px}
  .cta-grid{grid-template-columns:1fr;gap:34px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
  .foot-brand{grid-column:1/-1}
}
@media (max-width:768px){
  :root{--sec:52px}
  body{font-size:16px;line-height:1.8}
  .container{padding:0 20px}
  .header-inner{height:66px;gap:14px}
  .logo-text{font-size:16.5px}
  .page-hero{padding:34px 0 54px}
  .hero-lead{font-size:16px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-media img{aspect-ratio:16/10}
  .float-card{position:static;margin-top:16px;max-width:none;box-shadow:var(--sh-base)}
  .metrics{margin-top:20px;padding:18px 8px}
  .metric b{font-size:25px}
  .compare-grid{grid-template-columns:1fr}
  .overview-grid{grid-template-columns:1fr}
  .info-rail{grid-template-columns:1fr}
  .sec-title{padding-left:13px}
  .biz-body{padding:20px}
  .compare-card{padding:24px}
  .faq-item summary{padding:16px 18px;font-size:16px}
  .faq-answer{margin:0 18px 18px;font-size:14.5px}
  .cta-band{padding:56px 0}
  .form-card{padding:24px}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .foot-bottom{flex-direction:column;gap:10px}
}
@media (max-width:520px){
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .num-list li{flex-direction:column;gap:10px}
  .cross-links{flex-direction:column;align-items:flex-start;gap:10px}
}

/* roulang page: category2 */
:root{
  --brand:#1E5B8C;
  --brand-deep:#164A73;
  --brand-soft:#E8F1F8;
  --teal:#2F9E8F;
  --teal-soft:#E4F4F1;
  --teal-text:#1F7A6E;
  --amber:#D98324;
  --ink:#17222E;
  --ink-2:#4A5766;
  --ink-3:#8A97A6;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --line:#E3EAF1;
  --line-2:#EEF2F6;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-block:20px;
  --sh-1:0 1px 2px rgba(23,34,46,.05);
  --sh-2:0 8px 24px -14px rgba(30,91,140,.20);
  --sh-3:0 18px 40px -20px rgba(30,91,140,.30);
  --max:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  color:var(--ink);
  background:var(--bg);
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--brand-deep);text-decoration:underline;text-underline-offset:3px}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
.container{max-width:var(--max);margin:0 auto;padding:0 32px;width:100%}

/* ---------- 头部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-1)}
.header-inner{max-width:var(--max);margin:0 auto;padding:0 32px;height:76px;display:flex;align-items:center;gap:22px}
.logo{display:flex;align-items:center;gap:11px;flex:none}
.logo:hover{text-decoration:none}
.logo-mark{display:grid;grid-template-columns:repeat(2,1fr);gap:3px;width:26px;height:26px;flex:none}
.logo-mark i{display:block;border-radius:3px;background:var(--brand)}
.logo-mark i:nth-child(2){background:var(--teal)}
.logo-mark i:nth-child(3){background:var(--brand-deep)}
.logo-mark i:nth-child(4){background:var(--amber)}
.logo-text{display:flex;flex-direction:column;font-size:19px;font-weight:700;line-height:1.12;color:var(--ink);letter-spacing:-.2px}
.logo-sub{font-size:12px;font-weight:500;color:var(--ink-3);letter-spacing:.16em;margin-top:3px}
.chip-seg{display:flex;align-items:center;gap:4px;margin-left:10px}
.chip{position:relative;display:inline-flex;align-items:center;height:36px;padding:0 14px;border-radius:999px;font-size:14px;color:var(--ink-2);white-space:nowrap;transition:background .2s ease,color .2s ease}
.chip:hover{background:#F0F4F8;color:var(--ink);text-decoration:none}
.chip.is-active{background:var(--brand-soft);color:var(--brand);font-weight:500}
.chip.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:-20px;height:2px;border-radius:2px;background:var(--brand)}
.header-right{margin-left:auto;display:flex;align-items:center;gap:16px}
.header-divider{width:1px;height:26px;background:var(--line)}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;cursor:pointer;align-items:center;justify-content:center;flex-direction:column;gap:5px;padding:0}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .2s ease,opacity .2s ease}
.drawer{position:fixed;left:0;right:0;top:68px;bottom:0;background:#fff;z-index:55;padding:18px 20px 32px;display:none;flex-direction:column;gap:8px;overflow-y:auto;border-top:1px solid var(--line)}
.drawer.is-open{display:flex}
.drawer .chip{height:46px;justify-content:flex-start;padding:0 16px;border-radius:var(--r-btn);font-size:16px}
.drawer .chip.is-active::after{display:none}
.drawer .btn{margin-top:14px;width:100%}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:500;border:1.5px solid transparent;cursor:pointer;transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;text-align:center}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{background:var(--brand-deep);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep)}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ---------- 页面头部区 ---------- */
.page-hero{position:relative;overflow:hidden;padding:36px 0 0;background:var(--bg)}
.page-hero::before{content:"";position:absolute;left:-160px;top:-80px;width:440px;height:440px;border-radius:50%;pointer-events:none;background:radial-gradient(circle,rgba(30,91,140,.055) 0 38%,transparent 39% 60%,rgba(30,91,140,.045) 61% 73%,transparent 74%)}
.page-hero .container{position:relative;z-index:1}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-3)}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:#C6D2DD}
.breadcrumb .current{color:var(--ink-2)}
.hero-grid{display:grid;grid-template-columns:1.12fr .88fr;gap:48px;align-items:center;margin-top:26px}
.page-title{font-size:46px;line-height:1.25;font-weight:700;letter-spacing:-.6px;margin-top:4px}
.page-title .accent{color:var(--brand)}
.page-lead{max-width:760px;margin-top:20px;font-size:17px;line-height:1.95;color:var(--ink-2)}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-note{margin-top:16px;font-size:14px;line-height:1.7;color:var(--ink-3)}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-2)}
.hero-float{position:absolute;left:-16px;bottom:20px;display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--line);border-radius:var(--r-img);padding:12px 16px;box-shadow:var(--sh-3);max-width:280px}
.hero-float img{width:52px;height:52px;border-radius:10px;object-fit:cover;aspect-ratio:1/1;box-shadow:none;flex:none}
.hero-float p{font-size:13.5px;line-height:1.6;color:var(--ink-2)}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section--white{background:#fff;border-top:1px solid var(--line-2);border-bottom:1px solid var(--line-2)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:34px}
.section-head .left{max-width:720px}
.eyebrow{font-size:13px;font-weight:500;letter-spacing:.08em;color:var(--brand);margin-bottom:10px}
.h2{position:relative;padding-left:16px;font-size:32px;line-height:1.3;font-weight:700;letter-spacing:-.3px}
.h2::before{content:"";position:absolute;left:0;top:.24em;width:3px;height:.72em;border-radius:2px;background:var(--brand)}
.section-sub{margin-top:12px;font-size:16px;line-height:1.85;color:var(--ink-2)}

/* ---------- 筛选 chip ---------- */
.filter-bar{display:flex;gap:10px;overflow-x:auto;margin-top:26px;padding:4px 2px 8px;scrollbar-width:none}
.filter-bar::-webkit-scrollbar{display:none}
.filter-chip{flex:none;height:38px;padding:0 18px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:14px;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease}
.filter-chip:hover{border-color:#CFE0EE;color:var(--brand)}
.filter-chip.is-on{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- 指标条 ---------- */
.metric-strip{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border:1px solid var(--line);border-radius:var(--r-block);box-shadow:var(--sh-2);overflow:hidden;margin-top:34px}
.metric{padding:26px 28px;border-right:1px solid var(--line-2)}
.metric:last-child{border-right:0}
.metric strong{display:block;font-size:28px;font-weight:700;line-height:1.2;color:var(--brand);letter-spacing:-.4px}
.metric span{display:block;margin-top:6px;font-size:14px;line-height:1.7;color:var(--ink-3)}

/* ---------- 服务条线列表 ---------- */
.svc-list{border-top:1px solid var(--line);margin-top:6px}
.svc-row{display:grid;grid-template-columns:300px 1fr;gap:36px;align-items:center;padding:36px 0;border-bottom:1px solid var(--line-2)}
.svc-thumb{position:relative;border-radius:var(--r-img);overflow:hidden;aspect-ratio:4/3;background:var(--brand-soft)}
.svc-thumb img{width:100%;height:100%;object-fit:cover;border-radius:0}
.svc-num{display:inline-block;font-size:13px;font-weight:700;letter-spacing:.14em;color:var(--brand)}
.svc-body h3{font-size:21px;line-height:1.45;font-weight:700;margin:8px 0 10px}
.svc-body p{max-width:660px;font-size:16px;line-height:1.9;color:var(--ink-2)}
.tag-list{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;background:var(--teal-soft);color:var(--teal-text);font-size:13px;font-weight:500}
.link-arrow{display:inline-flex;align-items:center;gap:6px;margin-top:16px;font-size:15px;font-weight:500;color:var(--brand)}
.link-arrow i{transition:transform .2s ease}
.link-arrow:hover i{transform:translateX(3px)}

/* ---------- 场景 ---------- */
.scene-row{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center;padding:36px 0;border-bottom:1px solid var(--line-2)}
.scene-row:last-child{border-bottom:0;padding-bottom:0}
.scene-row:first-child{padding-top:0}
.scene-row.rev .scene-media{order:2}
.scene-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.badge{display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-size:13px;font-weight:500}
.scene-body h3{font-size:22px;line-height:1.45;font-weight:700;margin:14px 0 12px}
.scene-body p{font-size:16px;line-height:1.9;color:var(--ink-2);max-width:560px}

/* ---------- 流程 ---------- */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:6px}
.step-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 22px;box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
.step-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#CFE0EE}
.step-num{font-size:28px;font-weight:700;line-height:1;color:var(--brand);opacity:.32}
.step-card h3{font-size:17px;font-weight:700;margin:14px 0 8px}
.step-card p{font-size:14.5px;line-height:1.8;color:var(--ink-2)}

/* ---------- 保障区 ---------- */
.assure{background:var(--brand-deep);border-radius:var(--r-block);padding:52px 48px;color:#fff;box-shadow:var(--sh-2)}
.assure .h2{color:#fff}
.assure .h2::before{background:var(--teal)}
.assure .section-sub{color:rgba(255,255,255,.78);max-width:720px}
.assure-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:22px 40px;margin-top:34px}
.assure-item{display:flex;gap:14px;align-items:flex-start}
.assure-item i{flex:none;width:24px;height:24px;border-radius:999px;background:rgba(47,158,143,.85);color:#fff;font-size:12px;display:flex;align-items:center;justify-content:center;margin-top:4px}
.assure-item h3{font-size:16.5px;font-weight:700;margin-bottom:6px}
.assure-item p{font-size:14.5px;line-height:1.8;color:rgba(255,255,255,.75)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);margin-bottom:12px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item[open]{border-color:#CFE0EE;box-shadow:var(--sh-2)}
.faq-item summary{list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:19px 24px;border-left:3px solid transparent;font-size:17px;font-weight:500;color:var(--ink);transition:border-color .2s ease,color .2s ease}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--brand)}
.faq-item summary i{flex:none;font-size:14px;color:var(--ink-3);transition:transform .25s ease,color .25s ease}
.faq-item[open] summary{border-left-color:var(--brand);color:var(--brand)}
.faq-item[open] summary i{transform:rotate(180deg);color:var(--brand)}
.faq-answer{padding:0 24px 22px 24px;border-left:3px solid var(--brand);font-size:15px;line-height:1.9;color:var(--ink-2)}

/* ---------- CTA 表单 ---------- */
.cta-block{background:var(--brand-soft);border:1px solid #D5E5F1;border-radius:var(--r-block);padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.cta-copy h2{position:relative;padding-left:16px;font-size:30px;line-height:1.35;font-weight:700}
.cta-copy h2::before{content:"";position:absolute;left:0;top:.24em;width:3px;height:.72em;border-radius:2px;background:var(--brand)}
.cta-copy p{margin-top:14px;font-size:16px;line-height:1.9;color:var(--ink-2);max-width:420px}
.cta-points{margin-top:22px;display:grid;gap:10px}
.cta-points li{display:flex;align-items:flex-start;gap:10px;font-size:14.5px;line-height:1.75;color:var(--ink-2)}
.cta-points i{flex:none;color:var(--teal);font-size:13px;margin-top:5px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-2)}
.form-grid{display:grid;gap:16px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:8px}
.req{color:var(--amber);margin-left:3px}
.field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:10px;background:#fff;font-size:15px;color:var(--ink);transition:border-color .2s ease,box-shadow .2s ease}
.field input{height:48px;padding:0 14px}
.field textarea{height:112px;padding:12px 14px;line-height:1.7;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#A9B4C0}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(30,91,140,.12)}
.form-msg{display:none;margin-top:14px;font-size:14px;line-height:1.7}
.form-msg.ok{display:block;padding:10px 14px;border-radius:10px;background:var(--teal-soft);color:var(--teal-text)}
.form-tip{margin-top:12px;font-size:13px;line-height:1.7;color:var(--ink-3)}

/* ---------- 互推内链 ---------- */
.cross-links{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:36px}
.cross-card{display:flex;align-items:center;justify-content:space-between;gap:20px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 26px;box-shadow:var(--sh-1);transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease}
.cross-card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#CFE0EE;text-decoration:none}
.cross-card strong{display:block;font-size:17px;font-weight:700;color:var(--ink);margin-bottom:4px}
.cross-card span{font-size:14px;line-height:1.7;color:var(--ink-3)}
.cross-card i{flex:none;color:var(--brand);font-size:15px;transition:transform .2s ease}
.cross-card:hover i{transform:translateX(3px)}

/* ---------- 页脚 ---------- */
.site-footer{background:#F5F8FA;border-top:1px solid var(--line);padding:64px 0 0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.foot-brand .logo{margin-bottom:16px}
.foot-brand p{font-size:14px;line-height:1.85;color:var(--ink-2);max-width:320px}
.foot-title{font-size:15px;font-weight:700;color:var(--ink);margin-bottom:16px}
.foot-links li{margin-bottom:10px}
.foot-links a{font-size:14px;color:var(--ink-2)}
.foot-links a:hover{color:var(--brand);text-decoration:underline}
.foot-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;line-height:1.8;color:var(--ink-2);margin-bottom:10px}
.foot-contact i{flex:none;color:var(--brand);margin-top:6px;font-size:13px}
.qr-slot{display:flex;align-items:center;justify-content:center;width:120px;height:120px;border:1px dashed #C6D2DD;border-radius:var(--r-img);background:#fff;font-size:13px;color:var(--ink-3);text-align:center;padding:0 10px;line-height:1.6}
.foot-bottom{margin-top:48px;border-top:1px solid var(--line);padding:22px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:var(--ink-3)}
.foot-bottom a{color:var(--ink-3)}
.foot-bottom a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .header-inner{padding:0 24px}
  .container{padding:0 24px}
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:32px}
  .hero-media{order:2}
  .page-title{font-size:38px}
  .metric-strip{grid-template-columns:repeat(2,1fr)}
  .metric:nth-child(2){border-right:0}
  .metric:nth-child(1),.metric:nth-child(2){border-bottom:1px solid var(--line-2)}
  .svc-row{grid-template-columns:250px 1fr;gap:26px}
  .step-grid{grid-template-columns:repeat(2,1fr)}
  .cta-block{grid-template-columns:1fr;gap:32px;padding:36px}
  .cross-links{grid-template-columns:1fr}
}
@media (max-width:992px){
  .chip-seg,.header-cta,.header-divider{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{height:68px;padding:0 20px}
  .drawer{top:68px}
}
@media (max-width:768px){
  body{font-size:16.5px}
  .container{padding:0 18px}
  .section{padding:52px 0}
  .page-hero{padding-top:26px}
  .page-title{font-size:31px;letter-spacing:-.3px}
  .page-lead{font-size:16px}
  .h2{font-size:24px}
  .cta-copy h2{font-size:23px}
  .svc-row{grid-template-columns:1fr;gap:18px;padding:28px 0}
  .svc-thumb{aspect-ratio:16/9}
  .scene-row{grid-template-columns:1fr;gap:20px;padding:28px 0}
  .scene-row.rev .scene-media{order:0}
  .step-grid{grid-template-columns:1fr;gap:16px}
  .assure{padding:32px 22px}
  .assure-grid{grid-template-columns:1fr}
  .cta-block{padding:26px 20px}
  .form-card{padding:20px}
  .hero-float{position:static;margin-top:16px;max-width:none;box-shadow:var(--sh-2)}
  .foot-grid{grid-template-columns:1fr;gap:32px}
  .foot-bottom{flex-direction:column;align-items:flex-start}
  .hero-actions .btn{width:100%}
}
@media (max-width:520px){
  .page-title{font-size:28px}
  .metric-strip{grid-template-columns:1fr}
  .metric{border-right:0;border-bottom:1px solid var(--line-2);padding:20px 22px}
  .metric:last-child{border-bottom:0}
  .hero-actions{flex-direction:column;align-items:stretch}
  .faq-item summary{font-size:16px;padding:16px 18px}
  .faq-answer{padding:0 18px 18px 18px}
}

/* roulang page: category3 */
:root{
  --brand:#1E5B8C;
  --brand-dark:#164A73;
  --brand-light:#E8F1F8;
  --jade:#2F9E8F;
  --jade-light:#E4F4F1;
  --jade-ink:#1F7367;
  --amber:#D98324;
  --ink:#17222E;
  --ink-2:#4A5766;
  --ink-3:#8A97A6;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --line:#E3EAF1;
  --line-soft:#EEF2F6;
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --r-block:20px;
  --sh-1:0 1px 2px rgba(23,34,46,.05);
  --sh-2:0 8px 24px -14px rgba(30,91,140,.20);
  --sh-3:0 18px 40px -20px rgba(30,91,140,.30);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,sans-serif;
  font-size:17px;
  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;transition:color .2s}
a:hover{color:var(--brand-dark)}
button,input,textarea{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--amber);outline-offset:2px}
::selection{background:var(--brand-light)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line);box-shadow:var(--sh-1)}
.header-inner{display:flex;align-items:center;gap:20px;min-height:76px}
.logo{display:inline-flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--ink)}
.logo:hover{color:var(--brand-dark)}
.logo-mark{display:grid;grid-template-columns:repeat(2,7px);grid-template-rows:repeat(2,7px);gap:3px}
.logo-mark i{display:block;background:var(--brand);border-radius:2px}
.logo-mark i:nth-child(2),.logo-mark i:nth-child(3){background:var(--jade)}
.logo-text{font-size:19px;font-weight:700;line-height:1.15;letter-spacing:.4px}
.logo-sub{display:block;font-size:11px;font-weight:400;letter-spacing:2.5px;color:var(--ink-3)}
.chip-seg{display:flex;align-items:center;gap:4px;margin-left:auto;padding:4px;overflow-x:auto;scrollbar-width:none}
.chip-seg::-webkit-scrollbar{display:none}
.chip{position:relative;display:inline-flex;align-items:center;height:36px;padding:0 14px;border-radius:999px;font-size:14px;color:var(--ink-2);white-space:nowrap;transition:background-color .2s,color .2s}
.chip:hover{background:var(--line-soft);color:var(--ink)}
.chip.is-active{background:var(--brand-light);color:var(--brand);font-weight:500}
.chip.is-active::after{content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);width:18px;height:2px;border-radius:2px;background:var(--brand)}
.header-actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;padding-left:18px;border-left:1px solid var(--line)}
.nav-toggle{display:none;width:44px;height:44px;align-items:center;justify-content:center;border:1px solid var(--line);border-radius:10px;background:#fff;color:var(--ink-2);cursor:pointer}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}
.mobile-drawer{display:none;border-top:1px solid var(--line);background:#fff}
.mobile-drawer.is-open{display:block}
.mobile-drawer .drawer-inner{padding:16px 0 22px;display:flex;flex-direction:column;gap:8px}
.mobile-drawer .chip{height:46px;justify-content:flex-start;padding:0 16px;border-radius:10px;font-size:15px}
.mobile-drawer .chip.is-active::after{display:none}
.mobile-drawer .btn{margin-top:10px}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);border:1.5px solid transparent;font-size:15px;font-weight:500;cursor:pointer;text-align:center;
  transition:background-color .22s,color .22s,box-shadow .22s,transform .22s,border-color .22s}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--sh-2)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-3)}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand)}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark)}
.btn-sm{height:38px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.btn:disabled{opacity:.45;cursor:not-allowed}
.link-arrow{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:500;color:var(--brand)}
.link-arrow i{transition:transform .2s}
.link-arrow:hover{color:var(--brand-dark)}
.link-arrow:hover i{transform:translateX(3px)}

/* ---------- breadcrumb ---------- */
.breadcrumb{padding:24px 0 0;font-size:13px;color:var(--ink-3)}
.breadcrumb a{color:var(--ink-3)}
.breadcrumb a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.breadcrumb .sep{margin:0 8px;color:#C3CEDA}

/* ---------- hero ---------- */
.page-hero{padding:28px 0 12px}
.hero-grid{display:grid;grid-template-columns:1.02fr .98fr;gap:52px;align-items:center}
.badge{display:inline-flex;align-items:center;gap:7px;height:28px;padding:0 13px;border-radius:999px;background:var(--jade-light);color:var(--jade-ink);font-size:13px;font-weight:500}
.hero-copy h1{font-size:46px;line-height:1.25;font-weight:700;letter-spacing:-.5px;margin:18px 0 16px}
.hero-copy .lead{font-size:17px;color:var(--ink-2);max-width:620px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-note{margin-top:16px;font-size:14px;color:var(--ink-3)}
.hero-media{position:relative}
.hero-media > img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-2)}
.hero-float{position:absolute;left:-18px;bottom:22px;display:flex;align-items:center;gap:12px;max-width:300px;padding:14px 16px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-3)}
.hero-float img{width:52px;height:52px;border-radius:10px;object-fit:cover;flex:0 0 auto}
.hero-float b{display:block;font-size:14px;font-weight:500}
.hero-float span{display:block;font-size:12.5px;color:var(--ink-3);line-height:1.6}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-alt{background:#fff;border-top:1px solid var(--line-soft);border-bottom:1px solid var(--line-soft)}
.section-head{max-width:780px;margin-bottom:36px}
.section-title{position:relative;padding-left:16px;font-size:32px;line-height:1.3;font-weight:700}
.section-title::before{content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;border-radius:2px;background:var(--brand)}
.section-sub{margin-top:14px;font-size:16.5px;color:var(--ink-2)}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap}

/* ---------- filter ---------- */
.filter-bar{display:flex;gap:10px;margin-bottom:30px;padding-bottom:4px;overflow-x:auto;scrollbar-width:none}
.filter-bar::-webkit-scrollbar{display:none}
.filter-chip{height:36px;padding:0 16px;border-radius:999px;border:1px solid var(--line);background:#fff;color:var(--ink-2);font-size:14px;white-space:nowrap;cursor:pointer;transition:.2s}
.filter-chip:hover{border-color:var(--brand);color:var(--brand)}
.filter-chip.is-on{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- timeline ---------- */
.timeline{position:relative}
.timeline::before{content:"";position:absolute;left:7px;top:12px;bottom:12px;width:2px;border-radius:2px;background:var(--line)}
.tl-item{position:relative;display:grid;grid-template-columns:150px 1fr;gap:32px;padding:0 0 30px 36px}
.tl-item::before{content:"";position:absolute;left:0;top:12px;width:16px;height:16px;border-radius:50%;background:#fff;border:3px solid var(--brand);box-shadow:0 0 0 4px rgba(30,91,140,.09)}
.tl-item[data-cat="合作公告"]::before{border-color:var(--jade);box-shadow:0 0 0 4px rgba(47,158,143,.11)}
.tl-item[data-cat="运营通告"]::before{border-color:var(--amber);box-shadow:0 0 0 4px rgba(217,131,36,.11)}
.tl-date{padding-top:4px;font-size:13.5px;color:var(--ink-3)}
.tl-date b{display:block;margin-bottom:2px;font-size:15px;font-weight:500;color:var(--ink)}
.tl-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-1);transition:box-shadow .25s,transform .25s,border-color .25s}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#CFE0EE}
.tl-card h3{font-size:19px;line-height:1.5;font-weight:700;margin-bottom:8px}
.tl-card p{font-size:15.5px;color:var(--ink-2);margin-bottom:12px}

/* ---------- cards ---------- */
.grid-feature{display:grid;grid-template-columns:1.45fr 1fr 1fr;gap:24px}
.card{display:flex;flex-direction:column;overflow:hidden;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:transform .25s,box-shadow .25s,border-color .25s}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh-3);border-color:#CFE0EE}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover}
.card-body{display:flex;flex-direction:column;gap:10px;flex:1;padding:20px 22px 24px}
.tag{align-self:flex-start;display:inline-flex;align-items:center;height:25px;padding:0 11px;border-radius:999px;background:var(--jade-light);color:var(--jade-ink);font-size:12.5px;font-weight:500}
.tag.tag-brand{background:var(--brand-light);color:var(--brand)}
.card-body h3{font-size:18.5px;line-height:1.5;font-weight:700}
.card-body p{font-size:15px;color:var(--ink-2)}
.card-body .link-arrow{margin-top:auto;padding-top:6px}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step{padding:26px 22px 24px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);transition:box-shadow .25s,transform .25s}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh-2)}
.step-num{font-size:34px;font-weight:700;line-height:1;color:#D9E6F1;margin-bottom:14px}
.step h3{font-size:18px;font-weight:700;margin-bottom:8px}
.step p{font-size:15px;color:var(--ink-2)}

/* ---------- faq ---------- */
.faq{max-width:860px;margin:0 auto;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.faq-item + .faq-item{border-top:1px solid var(--line-soft)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:21px 24px;background:none;border:0;text-align:left;font-size:17px;font-weight:500;cursor:pointer;transition:background-color .2s,color .2s,box-shadow .2s}
.faq-q:hover{background:var(--brand-light);color:var(--brand-dark)}
.faq-q .ico{flex:0 0 auto;width:26px;height:26px;display:inline-flex;align-items:center;justify-content:center;border-radius:50%;border:1px solid var(--line);color:var(--brand);font-size:12px;transition:transform .25s,background-color .25s,color .25s}
.faq-item.is-open .faq-q{color:var(--brand);box-shadow:inset 3px 0 0 var(--brand)}
.faq-item.is-open .faq-q .ico{transform:rotate(180deg);background:var(--brand);border-color:var(--brand);color:#fff}
.faq-a{max-height:0;overflow:hidden;padding:0 24px;font-size:15.5px;color:var(--ink-2);transition:max-height .3s ease,padding .3s ease}
.faq-item.is-open .faq-a{max-height:360px;padding:0 24px 24px}

/* ---------- cta / form ---------- */
.cta-band{background:var(--brand-light);border:1px solid #D5E5F2;border-radius:var(--r-block);padding:48px;display:grid;grid-template-columns:1fr 1fr;gap:46px;align-items:start}
.cta-band h2{font-size:30px;line-height:1.35;font-weight:700;margin-bottom:14px}
.cta-band .cta-text{font-size:16.5px;color:var(--ink-2)}
.cta-list{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.cta-list li{display:flex;gap:10px;font-size:15px;color:var(--ink-2)}
.cta-list i{color:var(--jade);margin-top:6px;font-size:13px}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:26px 26px 28px;box-shadow:var(--sh-2)}
.field{display:flex;flex-direction:column;gap:8px;margin-bottom:16px}
.field label{font-size:13px;color:var(--ink-2)}
.field label .req{color:var(--amber);margin-left:3px}
.input{height:48px;padding:0 14px;background:#fff;border:1px solid var(--line);border-radius:10px;font-size:15px;transition:border-color .2s,box-shadow .2s}
textarea.input{height:104px;padding:12px 14px;line-height:1.7;resize:vertical;font-family:inherit}
.input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(30,91,140,.12)}
.form-msg{margin-top:14px;padding:12px 14px;border-radius:10px;background:var(--jade-light);color:var(--jade-ink);font-size:14px}
.cross-links{margin-top:34px;padding-top:22px;border-top:1px solid var(--line);font-size:14.5px;color:var(--ink-2)}
.cross-links a{font-weight:500;text-decoration:underline;text-underline-offset:3px}

/* ---------- footer ---------- */
.site-footer{background:#F5F8FA;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px}
.foot-brand p{margin-top:16px;font-size:14.5px;color:var(--ink-2);line-height:1.85;max-width:340px}
.foot-title{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--ink)}
.foot-links li,.foot-contact li{margin-bottom:10px;font-size:14px;color:var(--ink-2)}
.foot-links a{color:var(--ink-2)}
.foot-links a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.foot-contact li{display:flex;gap:9px;line-height:1.7}
.foot-contact i{color:var(--jade);margin-top:6px;font-size:12px}
.qr-slot{display:flex;align-items:center;justify-content:center;width:104px;height:104px;border:1px dashed #C7D6E3;border-radius:12px;background:#fff;font-size:12.5px;color:var(--ink-3);text-align:center;padding:8px;line-height:1.6}
.foot-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;margin-top:52px;padding:22px 0;border-top:1px solid var(--line);font-size:13.5px;color:var(--ink-3)}
.foot-bottom a{color:var(--ink-3)}
.foot-bottom a:hover{color:var(--brand)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .hero-grid{gap:40px}
  .hero-copy h1{font-size:42px}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .section{padding:72px 0}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-media{order:2}
  .hero-float{left:14px}
  .grid-feature{grid-template-columns:1fr 1fr}
  .grid-feature .card:first-child{grid-column:1 / -1}
  .steps{grid-template-columns:1fr 1fr}
  .cta-band{grid-template-columns:1fr;padding:36px;gap:32px}
  .foot-grid{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:767px){
  body{font-size:16.5px;line-height:1.8}
  .container{padding:0 20px}
  .header-inner{min-height:64px;gap:12px}
  .chip-seg{display:none}
  .header-actions{padding-left:0;border-left:0;margin-left:auto}
  .header-actions .btn{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:56px 0}
  .section-title{font-size:25px}
  .hero-copy h1{font-size:31px}
  .page-hero{padding:18px 0 4px}
  .timeline::before{left:6px}
  .tl-item{grid-template-columns:1fr;gap:12px;padding-left:30px}
  .tl-date{display:flex;align-items:baseline;gap:10px;padding-top:8px}
  .tl-date b{margin-bottom:0}
  .tl-card{padding:18px 18px 20px}
  .tl-card h3{font-size:17.5px}
  .grid-feature{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .faq-q{font-size:16px;padding:18px 18px}
  .faq-a{padding:0 18px}
  .faq-item.is-open .faq-a{padding:0 18px 20px}
  .cta-band{padding:26px 20px;border-radius:16px}
  .cta-band h2{font-size:23px}
  .form-card{padding:20px 18px 22px}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .foot-bottom{margin-top:36px;font-size:13px}
  .hero-actions .btn{width:100%}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .logo-text{font-size:17px}
  .logo-sub{letter-spacing:1.6px}
  .hero-copy h1{font-size:27px}
  .hero-float{position:static;margin-top:16px;max-width:100%}
  .card-body{padding:18px 18px 20px}
}