/* roulang page: index */
:root{
  --bg:#F6F7FB;
  --surface:#FFFFFF;
  --surface-2:#F1F3F9;
  --line:#E3E6F0;
  --ink:#14172B;
  --ink-2:#4B5170;
  --ink-3:#7A8099;
  --primary:#2B3A8F;
  --primary-600:#22307A;
  --primary-050:#EDF0FB;
  --violet:#6C5CE7;
  --gold:#E5A83C;
  --ok:#2E7D5B;
  --warn:#B8862B;
  --err:#C0392B;
  --sd-1:0 1px 2px rgba(20,23,43,.05);
  --sd-2:0 8px 24px rgba(28,36,84,.08);
  --sd-3:0 18px 48px rgba(28,36,84,.12);
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --r-hero:20px;
  --container:1200px;
  --pad:clamp(16px,4vw,32px);
  --section:clamp(64px,8vw,112px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--primary-600);text-decoration:underline;text-underline-offset:2px}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:var(--pad);
  padding-right:var(--pad);
}
.section{padding-top:var(--section);padding-bottom:var(--section)}
.section-tight{padding-top:clamp(44px,5vw,72px);padding-bottom:clamp(44px,5vw,72px)}
.section-head{max-width:760px;margin-bottom:clamp(32px,4vw,52px)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--violet);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--violet);display:inline-block}
.h2{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.01em}
.h3{font-size:20px;font-weight:600;line-height:1.4}
.lead{font-size:16px;color:var(--ink-2);margin-top:16px;line-height:1.9}
.muted{color:var(--ink-3);font-size:13px}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sd-1);
}
.nav-wrap{display:flex;align-items:center;gap:24px;height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);text-decoration:none;flex:0 0 auto}
.brand:hover{text-decoration:none;color:var(--ink)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(150deg,var(--primary) 0%,var(--violet) 100%);
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:15px;font-weight:700;
  box-shadow:0 4px 12px rgba(43,58,143,.28);
}
.brand-text{font-size:15px;font-weight:700;letter-spacing:-.01em;line-height:1.2}
.nav-chips{
  display:flex;align-items:center;gap:6px;
  margin-left:8px;margin-right:auto;
  overflow-x:auto;scrollbar-width:none;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--ink-2);
  background:transparent;border:1px solid transparent;
  white-space:nowrap;transition:all .16s ease;cursor:pointer;
}
.chip:hover{background:var(--surface-2);color:var(--ink);text-decoration:none}
.chip.active{
  background:var(--primary-050);color:var(--primary);
  border-color:rgba(43,58,143,.22);font-weight:600;
}
.chip-cat{
  background:var(--primary-050);color:var(--primary);
  font-size:12px;padding:3px 10px;font-weight:600;border-radius:999px;
}
.chip-soft{background:var(--surface-2);color:var(--ink-2);font-size:12px;padding:3px 10px;border-radius:999px}

.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--line);background:#fff;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--ink);border-radius:2px}
.nav-drawer{
  display:none;position:fixed;inset:72px 0 0 0;z-index:55;
  background:var(--surface);padding:20px var(--pad) 40px;
  overflow-y:auto;
}
.nav-drawer.open{display:block}
.nav-drawer a{
  display:block;padding:16px 14px;border-radius:12px;
  color:var(--ink);font-size:16px;font-weight:600;
  border-left:3px solid transparent;
}
.nav-drawer a:hover{background:var(--surface-2);text-decoration:none}
.nav-drawer a.active{border-left-color:var(--primary);background:var(--primary-050);color:var(--primary)}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:transform .16s ease,background .16s ease,border-color .16s ease,box-shadow .16s ease,color .16s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sd-2)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{background:#fff;color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);text-decoration:none}
.btn-ghost{background:transparent;color:var(--primary);padding:6px 0;font-weight:600}
.btn-ghost .arrow{transition:transform .16s ease;display:inline-block}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn-block{width:100%}
.btn[disabled],.btn.is-loading{opacity:.7;pointer-events:none}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:radial-gradient(var(--primary) 1px,transparent 1px);
  background-size:26px 26px;
}
.hero-inner{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1fr .92fr;
  gap:clamp(32px,5vw,60px);align-items:center;
  padding-top:clamp(48px,6vw,88px);padding-bottom:clamp(40px,5vw,64px);
}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--primary-050);color:var(--primary);
  font-size:13px;font-weight:600;margin-bottom:20px;
}
.hero h1{
  font-size:clamp(30px,4.2vw,48px);font-weight:700;line-height:1.22;
  letter-spacing:-.02em;
}
.hero h1 em{font-style:normal;color:var(--primary)}
.hero-sub{
  font-size:clamp(15px,1.6vw,17px);color:var(--ink-2);
  margin-top:20px;max-width:560px;line-height:1.9;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-quick{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-hero);border:1px solid var(--line);
  box-shadow:var(--sd-2);
  background:var(--surface-2);
}
.hero-figure::after{
  content:"";position:absolute;right:-14px;bottom:-14px;
  width:120px;height:120px;border-radius:24px;
  background:rgba(43,58,143,.06);z-index:-1;
}
.hero-badge{
  position:absolute;left:20px;bottom:20px;
  background:rgba(255,255,255,.94);
  border:1px solid var(--line);border-radius:14px;
  padding:12px 16px;box-shadow:var(--sd-2);
  font-size:13px;color:var(--ink-2);line-height:1.6;
}
.hero-badge strong{display:block;font-size:15px;color:var(--ink);font-weight:700}

/* ============ 数据条 ============ */
.databar{
  position:relative;z-index:1;
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
  background:#fff;
}
.databar div{
  padding:22px 20px;
  border-right:1px solid var(--line);
}
.databar div:last-child{border-right:none}
.databar b{
  display:block;font-size:clamp(20px,2.2vw,26px);font-weight:700;
  color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2;
}
.databar span{font-size:13px;color:var(--ink-3);display:block;margin-top:6px}

/* ============ 编号条目 ============ */
.svc-list{border-top:1px solid var(--line)}
.svc-item{
  display:grid;grid-template-columns:110px 1fr 130px;
  gap:28px;align-items:center;
  padding:30px 20px;border-bottom:1px solid var(--line);
  transition:background .18s ease;
}
.svc-item:hover{background:#F3F6FD}
.svc-num{
  font-size:clamp(30px,3.4vw,40px);font-weight:700;
  color:rgba(43,58,143,.2);font-variant-numeric:tabular-nums;
  line-height:1;transition:color .18s ease;letter-spacing:-.02em;
}
.svc-item:hover .svc-num{color:var(--primary)}
.svc-body p{font-size:15px;color:var(--ink-2);margin-top:8px;line-height:1.85}
.svc-link{justify-self:end;font-size:14px;font-weight:600;color:var(--primary);white-space:nowrap}
.svc-link span{display:inline-block;transition:transform .16s ease}
.svc-link:hover span{transform:translateX(4px)}

/* ============ 统计卡 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 24px;box-shadow:var(--sd-1);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.stat-card:hover{box-shadow:var(--sd-2);transform:translateY(-3px);border-color:rgba(43,58,143,.22)}
.stat-num{
  font-size:clamp(32px,4vw,44px);font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.02em;
}
.stat-num i{font-style:normal;font-size:.55em;margin-left:2px;color:var(--ink-3)}
.stat-label{font-size:14px;color:var(--ink-2);margin-top:10px}
.stat-note{font-size:13px;color:var(--ink-3);margin-top:6px}

/* ============ 案例非对称网格 ============ */
.case-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:24px}
.case-main{grid-column:span 7}
.case-side{grid-column:span 5;display:grid;gap:24px}
.case-card{
  position:relative;display:block;overflow:hidden;
  border-radius:var(--r-card);border:1px solid var(--line);
  background:#fff;box-shadow:var(--sd-1);text-decoration:none;color:inherit;
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.case-card:hover{box-shadow:var(--sd-3);transform:translateY(-3px);border-color:rgba(43,58,143,.28);text-decoration:none}
.case-card img{
  width:100%;aspect-ratio:3/2;object-fit:cover;
  border-radius:var(--r-card) var(--r-card) 0 0;
  transition:transform .3s ease;background:var(--surface-2);
}
.case-card:hover img{transform:scale(1.03)}
.case-body{padding:20px 22px 24px}
.case-body h3{font-size:17px;font-weight:600;line-height:1.45}
.case-body p{font-size:14px;color:var(--ink-2);margin-top:8px;line-height:1.8}
.case-side .case-card img{aspect-ratio:16/9}

/* ============ 流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:8px}
.step{position:relative;padding-right:28px;padding-top:44px}
.step::before{
  content:"";position:absolute;top:13px;left:26px;right:0;
  height:1px;background:var(--line);
}
.step:last-child::before{display:none}
.step-dot{
  position:absolute;top:2px;left:0;
  width:26px;height:26px;border-radius:50%;
  background:#fff;border:2px solid var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;
}
.step h3{font-size:16px;font-weight:600}
.step p{font-size:14px;color:var(--ink-2);margin-top:8px;line-height:1.8}

/* ============ 最新信息 ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:clamp(28px,3vw,40px)}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sd-1);color:inherit;text-decoration:none;
  min-height:196px;
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.news-card:hover{
  box-shadow:var(--sd-3);transform:translateY(-3px);
  border-color:rgba(43,58,143,.28);text-decoration:none;
}
.news-title{
  font-size:17px;font-weight:600;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-desc{
  font-size:14px;color:var(--ink-2);line-height:1.78;margin-bottom:auto;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-foot{
  display:flex;align-items:center;gap:12px;margin-top:18px;
  font-size:13px;color:var(--ink-3);
}
.news-arrow{margin-left:auto;color:var(--primary);transition:transform .18s ease}
.news-card:hover .news-arrow{transform:translateX(4px)}
.news-empty{
  grid-column:1/-1;
  border:1px dashed var(--line);border-radius:var(--r-card);
  background:rgba(255,255,255,.6);
  padding:52px 24px;text-align:center;color:var(--ink-2);
}
.news-empty .empty-icon{
  width:44px;height:44px;margin:0 auto 14px;border-radius:50%;
  background:var(--primary-050);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:18px;
}
.news-empty p{font-size:15px;margin-bottom:16px}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sd-1);
  overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item:hover{border-color:rgba(43,58,143,.22)}
.faq-item.open{border-color:rgba(43,58,143,.28);box-shadow:var(--sd-2)}
.faq-item.open::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:3px;
  background:var(--primary);border-radius:0 3px 3px 0;
}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;
  padding:20px 24px;background:transparent;border:none;cursor:pointer;
  text-align:left;font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);
}
.faq-q span:first-child{flex:1}
.faq-icon{width:18px;height:18px;position:relative;flex:0 0 auto;transition:transform .25s ease}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--ink-2);border-radius:2px;
  transition:background .18s ease;
}
.faq-icon::before{width:14px;height:2px;transform:translate(-50%,-50%)}
.faq-icon::after{width:2px;height:14px;transform:translate(-50%,-50%)}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-item.open .faq-icon::before,.faq-item.open .faq-icon::after{background:var(--primary)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{
  padding:0 24px 22px 24px;font-size:15px;color:var(--ink-2);line-height:1.85;
}

/* ============ 联系 ============ */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:28px}
.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:clamp(24px,3vw,36px);box-shadow:var(--sd-1);
}
.field{margin-bottom:20px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:8px;font-weight:600}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;padding:11px 14px;font-size:15px;line-height:1.6;
  transition:border-color .16s ease,box-shadow .16s ease;
}
.field input{height:44px}
.field textarea{min-height:120px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(43,58,143,.3);
}
.field .err-msg{display:none;font-size:13px;color:var(--err);margin-top:6px}
.field.has-error input,.field.has-error textarea{border-color:var(--err)}
.field.has-error .err-msg{display:block}
.form-note{font-size:13px;color:var(--ink-3);margin-top:14px;line-height:1.7}
.form-state{
  display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-btn);
  font-size:14px;background:rgba(46,125,91,.1);color:var(--ok);
}
.form-state.show{display:block}
.info-list{display:grid;gap:18px;margin-top:6px}
.info-row{display:flex;gap:14px;align-items:flex-start}
.info-ico{
  width:36px;height:36px;flex:0 0 auto;border-radius:10px;
  background:var(--primary-050);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;
}
.info-row b{display:block;font-size:14px;font-weight:600;color:var(--ink)}
.info-row span{font-size:14px;color:var(--ink-2);line-height:1.8}
.map-ph{
  margin-top:22px;height:170px;border-radius:var(--r-img);
  border:1px solid var(--line);background:var(--surface-2);
  display:flex;align-items:center;justify-content:center;
  color:var(--ink-3);font-size:13px;
  background-image:radial-gradient(rgba(43,58,143,.14) 1px,transparent 1px);
  background-size:18px 18px;
}

/* ============ CTA ============ */
.cta-band{
  background:var(--primary);border-radius:24px;
  padding:clamp(36px,5vw,60px);
  color:#fff;display:grid;grid-template-columns:1.4fr auto;gap:32px;align-items:center;
  position:relative;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;opacity:.08;pointer-events:none;
  background-image:radial-gradient(#fff 1px,transparent 1px);background-size:24px 24px;
}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.35;position:relative}
.cta-band p{margin-top:14px;font-size:15px;color:rgba(255,255,255,.82);line-height:1.85;position:relative;max-width:620px}
.cta-band .btn{position:relative;background:#fff;color:var(--primary)}
.cta-band .btn:hover{background:#fff;color:var(--primary-600);box-shadow:0 12px 28px rgba(0,0,0,.18)}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--surface-2);border-top:1px solid var(--line);
  padding-top:clamp(48px,6vw,72px);position:relative;overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:180px;opacity:.05;
  background-image:radial-gradient(var(--primary) 1px,transparent 1px);
  background-size:22px 22px;pointer-events:none;
}
.footer-grid{
  position:relative;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;
  gap:32px;padding-bottom:44px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:30px;height:30px;font-size:13px;border-radius:9px}
.footer-brand span{font-size:15px;font-weight:700;color:var(--ink)}
.footer-desc{font-size:14px;color:var(--ink-2);line-height:1.85;max-width:320px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:16px}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14px;color:var(--ink-2)}
.footer-col a:hover{color:var(--primary);text-decoration:none}
.footer-contact li{font-size:14px;color:var(--ink-2);margin-bottom:11px;line-height:1.7}
.footer-bottom{
  position:relative;border-top:1px solid var(--line);
  padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
}

/* ============ 响应式 ============ */
@media (max-width:1439px){
  :root{--container:1140px}
}
@media (max-width:1199px){
  :root{--container:960px}
  .hero-inner{grid-template-columns:1fr .86fr}
  .svc-item{grid-template-columns:90px 1fr 110px;gap:22px}
}
@media (max-width:991px){
  .nav-chips{display:none}
  .nav-toggle{display:flex}
  .nav-wrap{height:60px}
  .nav-drawer{inset:60px 0 0 0}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .hero-figure img{aspect-ratio:16/9}
  .databar{grid-template-columns:repeat(2,1fr)}
  .databar div:nth-child(2){border-right:none}
  .databar div:nth-child(1),.databar div:nth-child(2){border-bottom:1px solid var(--line)}
  .stat-grid{grid-template-columns:repeat(2,1fr)}
  .case-grid{grid-template-columns:1fr}
  .case-main,.case-side{grid-column:span 1}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr);row-gap:32px}
  .step:nth-child(2)::before{display:none}
  .contact-grid{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:28px}
}
@media (max-width:767px){
  .svc-item{grid-template-columns:64px 1fr;gap:16px;padding:24px 12px}
  .svc-link{grid-column:2;justify-self:start}
  .news-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr}
  .step{padding-right:0;padding-left:44px;padding-top:0;padding-bottom:26px}
  .step::before{top:0;bottom:0;left:13px;right:auto;width:1px;height:auto}
  .step:last-child::before{display:none}
  .hero-figure::after{display:none}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (max-width:520px){
  .section{padding-top:clamp(40px,9vw,64px);padding-bottom:clamp(40px,9vw,64px)}
  .stat-grid{grid-template-columns:1fr}
  .hero h1{font-size:clamp(26px,7vw,32px)}
  .btn{padding:11px 18px;font-size:14px}
  .hero-actions .btn{width:100%}
  .faq-q{padding:18px;font-size:15px}
  .faq-a p{padding:0 18px 20px 18px}
}

/* roulang page: article */
:root{
  --bg:#F6F7FB;
  --surface:#FFFFFF;
  --surface-2:#F1F3F9;
  --line:#E3E6F0;
  --ink:#14172B;
  --ink-2:#4B5170;
  --ink-3:#7A8099;
  --primary:#2B3A8F;
  --primary-600:#22307A;
  --primary-050:#EDF0FB;
  --violet:#6C5CE7;
  --gold:#E5A83C;
  --ok:#2E7D5B;
  --warn:#B8862B;
  --err:#C0392B;
  --sd-1:0 1px 2px rgba(20,23,43,.05);
  --sd-2:0 8px 24px rgba(28,36,84,.08);
  --sd-3:0 18px 48px rgba(28,36,84,.12);
  --r-card:16px;
  --r-btn:12px;
  --r-chip:999px;
  --r-img:14px;
  --r-hero:20px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .16s ease;}
a:hover{color:var(--primary-600);text-decoration:underline;text-underline-offset:2px;}
button{font:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.3;color:var(--ink);font-weight:700;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 clamp(16px,4vw,32px);}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sd-1);
}
.nav-wrap{display:flex;align-items:center;gap:20px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;color:var(--ink);font-weight:700;}
.brand:hover{text-decoration:none;color:var(--ink);}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--primary),var(--violet));
  color:#fff;font-size:17px;font-weight:700;flex-shrink:0;
}
.brand-text{font-size:16px;letter-spacing:.2px;white-space:nowrap;}
.nav-chips{display:flex;align-items:center;gap:6px;flex:1;min-width:0;overflow-x:auto;scrollbar-width:none;}
.nav-chips::-webkit-scrollbar{display:none;}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 15px;border-radius:var(--r-chip);
  font-size:14px;color:var(--ink-2);white-space:nowrap;
  border:1px solid transparent;transition:all .16s ease;
}
.chip:hover{background:var(--surface-2);color:var(--ink);text-decoration:none;}
.chip.active{
  background:var(--primary-050);color:var(--primary);
  border-color:rgba(43,58,143,.22);font-weight:600;
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  cursor:pointer;transition:all .16s ease;text-align:center;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--sd-1);}
.btn-primary:hover{background:var(--primary-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sd-2);}
.btn-ghost{background:var(--surface);color:var(--ink);border-color:var(--line);}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);}
.btn-sm{padding:9px 18px;font-size:14px;}
.nav-toggle{
  display:none;width:42px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:var(--surface);
  flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:all .2s ease;}
.nav-drawer{
  position:fixed;inset:0;z-index:80;background:var(--surface);
  padding:20px;display:flex;flex-direction:column;gap:6px;
  transform:translateY(-101%);visibility:hidden;transition:transform .26s ease,visibility .26s ease;
  overflow-y:auto;
}
.nav-drawer.open{transform:translateY(0);visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:14px;}
.drawer-close{width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:var(--surface);font-size:20px;line-height:1;cursor:pointer;color:var(--ink-2);}
.drawer-link{
  display:block;padding:14px 14px;border-radius:12px;color:var(--ink);
  font-size:16px;font-weight:600;border-left:3px solid transparent;
}
.drawer-link:hover{background:var(--surface-2);text-decoration:none;color:var(--ink);}
.drawer-link.active{border-left-color:var(--primary);background:var(--primary-050);color:var(--primary);}
.drawer-cta{margin-top:16px;}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.article-hero::before{
  content:"";position:absolute;inset:0;background:rgba(255,255,255,.93);
}
.article-hero .container{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding:20px 0 6px;font-size:13px;color:var(--ink-3);}
.crumb a{color:var(--ink-2);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:var(--ink-3);}
.crumb .now{color:var(--ink-2);max-width:60ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-head{padding:16px 0 clamp(36px,5vw,56px);max-width:820px;}
.badge{
  display:inline-flex;align-items:center;
  padding:5px 13px;border-radius:var(--r-chip);
  background:var(--primary-050);color:var(--primary);
  font-size:12.5px;font-weight:600;letter-spacing:.2px;
}
.badge.gold{background:rgba(229,168,60,.14);color:#9A6B12;}
.article-head h1{
  margin-top:16px;
  font-size:clamp(28px,4vw,46px);
  line-height:1.24;letter-spacing:-.2px;
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:12px;
  margin-top:20px;padding-top:18px;border-top:1px solid var(--line);
  font-size:13.5px;color:var(--ink-2);
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--ink-3);display:inline-block;}
.meta-row time{color:var(--ink-2);}

/* ---------- layout ---------- */
main{display:block;}
.section{padding:clamp(48px,6vw,80px) 0;}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr);gap:44px;
  align-items:start;
}
@media (min-width:1280px){
  .article-layout{grid-template-columns:minmax(0,780px) 236px;justify-content:center;}
}
.article-panel{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sd-1);padding:clamp(22px,3.4vw,44px);
}

/* ---------- article body ---------- */
.article-body{font-size:16px;line-height:1.85;color:var(--ink-2);word-wrap:break-word;}
.article-body>*:first-child{margin-top:0;}
.article-body h2{
  margin:40px 0 16px;font-size:clamp(22px,2.4vw,28px);line-height:1.36;color:var(--ink);
  scroll-margin-top:96px;
}
.article-body h3{margin:30px 0 12px;font-size:20px;line-height:1.4;color:var(--ink);}
.article-body h4{margin:24px 0 10px;font-size:17px;color:var(--ink);}
.article-body p{margin:0 0 18px;font-size:16px;line-height:1.85;color:var(--ink-2);}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin:0 0 8px;line-height:1.85;color:var(--ink-2);}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;border-left:4px solid var(--primary);
  background:var(--primary-050);border-radius:0 12px 12px 0;color:var(--ink-2);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:var(--r-img);margin:24px auto;}
.article-body figure{margin:24px 0;}
.article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:10px;}
.article-body table{
  display:block;width:100%;overflow-x:auto;border-collapse:collapse;
  margin:24px 0;font-size:14.5px;border:1px solid var(--line);border-radius:12px;
}
.article-body th,.article-body td{
  padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap;color:var(--ink-2);
}
.article-body thead th{background:var(--surface-2);color:var(--ink);font-weight:600;}
.article-body tbody tr:nth-child(even) td{background:#FAFBFE;}
.article-body code{
  background:var(--surface-2);border:1px solid var(--line);
  padding:2px 6px;border-radius:6px;font-size:14px;color:var(--primary-600);
}
.article-body pre{
  background:#14172B;color:#E8EBF5;padding:18px;border-radius:12px;
  overflow-x:auto;margin:22px 0;font-size:14px;line-height:1.7;
}
.article-body pre code{background:none;border:none;color:inherit;padding:0;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

/* ---------- toc ---------- */
.toc{display:none;}
@media (min-width:1280px){
  .toc{
    display:block;position:sticky;top:96px;
    background:var(--surface);border:1px solid var(--line);
    border-radius:var(--r-card);padding:18px 18px 20px;box-shadow:var(--sd-1);
  }
}
.toc h4{font-size:13px;color:var(--ink-3);letter-spacing:.6px;font-weight:600;margin-bottom:12px;}
.toc ol{display:flex;flex-direction:column;gap:2px;counter-reset:toc;}
.toc a{
  display:block;padding:7px 10px;border-radius:8px;
  font-size:13.5px;color:var(--ink-2);line-height:1.5;
  border-left:2px solid transparent;
}
.toc a:hover{background:var(--surface-2);color:var(--primary);text-decoration:none;}
.toc a.active{background:var(--primary-050);color:var(--primary);border-left-color:var(--primary);font-weight:600;}

/* ---------- empty ---------- */
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);
  padding:52px 24px;text-align:center;background:#FBFCFE;
}
.empty-icon{
  width:52px;height:52px;border-radius:14px;margin:0 auto 16px;
  display:grid;place-items:center;background:var(--primary-050);color:var(--primary);font-size:22px;
}
.empty-state h2{font-size:20px;margin-bottom:10px;}
.empty-state p{font-size:14.5px;color:var(--ink-2);margin-bottom:20px;}

/* ---------- related ---------- */
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:26px;}
.sec-head h2{font-size:clamp(22px,2.6vw,30px);}
.sec-head .more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.sec-head .more:hover{gap:10px;text-decoration:none;}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sd-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-3px);border-color:rgba(43,58,143,.28);box-shadow:var(--sd-3);}
.card-media{position:relative;aspect-ratio:3/2;background:var(--surface-2);overflow:hidden;}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-media img{transform:scale(1.03);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.card-body h3{
  font-size:17px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body h3 a{color:var(--ink);}
.card-body h3 a:hover{color:var(--primary);text-decoration:none;}
.card-body p{
  font-size:14px;color:var(--ink-2);margin-bottom:16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{margin-top:auto;display:flex;align-items:center;gap:12px;font-size:13px;color:var(--ink-3);}
.card-foot .tag{
  padding:3px 10px;border-radius:var(--r-chip);background:var(--surface-2);color:var(--ink-2);font-size:12px;
}
.card-foot .arrow{margin-left:auto;color:var(--primary);font-weight:600;}

/* ---------- prev next ---------- */
.pn-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;}
.pn-item{
  display:block;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sd-1);
  transition:border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.pn-item:hover{border-color:rgba(43,58,143,.28);transform:translateY(-3px);box-shadow:var(--sd-2);text-decoration:none;}
.pn-item .pn-label{font-size:12.5px;color:var(--ink-3);letter-spacing:.4px;}
.pn-item .pn-title{display:block;margin-top:8px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.55;}
.pn-item.next{text-align:right;}

/* ---------- back bar ---------- */
.back-bar{display:flex;justify-content:center;padding-top:8px;}

/* ---------- cta ---------- */
.cta-band{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sd-1);padding:clamp(26px,3.6vw,44px);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
}
.cta-band h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:8px;}
.cta-band p{font-size:14.5px;color:var(--ink-2);max-width:56ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- footer ---------- */
.site-footer{
  position:relative;
  background:var(--surface-2);border-top:1px solid var(--line);
  margin-top:clamp(40px,6vw,72px);padding-top:clamp(40px,5vw,64px);
  overflow:hidden;
}
.site-footer::before{
  content:"";position:absolute;top:0;right:0;width:320px;height:220px;pointer-events:none;
  background-image:radial-gradient(rgba(43,58,143,.6) 1px,transparent 1px);
  background-size:18px 18px;opacity:.06;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:clamp(22px,3vw,40px);
  padding-bottom:40px;position:relative;z-index:1;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);font-size:16px;margin-bottom:14px;}
.footer-desc{font-size:14px;color:var(--ink-2);line-height:1.8;max-width:34ch;}
.footer-col h4{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:14px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14px;color:var(--ink-2);}
.footer-col a:hover{color:var(--primary);}
.footer-contact li{font-size:14px;color:var(--ink-2);line-height:1.7;}
.footer-bottom{
  border-top:1px solid var(--line);padding:18px 0 26px;
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13px;color:var(--ink-3);position:relative;z-index:1;
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .card-grid{gap:20px;}
}
@media (max-width:991px){
  .nav-chips{display:none;}
  .nav-actions .btn{display:none;}
  .nav-toggle{display:flex;}
  .nav-wrap{height:60px;justify-content:space-between;}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  .pn-grid{grid-template-columns:minmax(0,1fr);}
  .pn-item.next{text-align:left;}
  .article-head h1{font-size:clamp(24px,7vw,30px);}
  .crumb .now{white-space:normal;}
}
@media (max-width:520px){
  .section{padding:40px 0;}
  .card-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:26px;}
  .btn{padding:11px 18px;font-size:14px;}
  .chip{font-size:13px;padding:7px 13px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
}

/* roulang page: category1 */
:root{
  --bg:#F6F7FB;
  --surface:#FFFFFF;
  --surface-2:#F1F3F9;
  --line:#E3E6F0;
  --ink:#14172B;
  --ink-2:#4B5170;
  --ink-3:#7A8099;
  --primary:#2B3A8F;
  --primary-600:#22307A;
  --primary-050:#EDF0FB;
  --violet:#6C5CE7;
  --gold:#E5A83C;
  --ok:#2E7D5B;
  --err:#C0392B;
  --r-card:16px;
  --r-btn:12px;
  --r-img:14px;
  --r-hero:20px;
  --sd-1:0 1px 2px rgba(20,23,43,.05);
  --sd-2:0 8px 24px rgba(28,36,84,.08);
  --sd-3:0 18px 48px rgba(28,36,84,.12);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;background:var(--surface-2)}
a{color:var(--primary);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--primary-600);text-decoration:underline;text-underline-offset:2px}
button{font:inherit}
h1,h2,h3,h4,p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}

.container{max-width:var(--container);margin:0 auto;padding:0 clamp(16px,4vw,32px)}

.skip-link{position:absolute;left:-9999px;top:0;background:var(--primary);color:#fff;padding:10px 16px;border-radius:0 0 12px 0;z-index:200}
.skip-link:focus{left:0}

/* ---------- 头部与导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:100;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  box-shadow:var(--sd-1);
}
.nav-wrap{
  display:flex;align-items:center;gap:clamp(14px,2vw,28px);
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);font-weight:700;font-size:16px;letter-spacing:.2px}
.brand:hover{color:var(--primary);text-decoration:none}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--primary);color:#fff;font-size:16px;font-weight:700;flex:0 0 auto;
}
.brand-text{white-space:nowrap}
.nav-chips{
  display:flex;align-items:center;gap:6px;
  flex:1 1 auto;justify-content:center;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;
  padding:8px 14px;border-radius:999px;
  font-size:14px;color:var(--ink-2);
  border:1px solid transparent;white-space:nowrap;
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.chip:hover{background:var(--surface-2);color:var(--ink);text-decoration:none}
.chip.active{
  background:var(--primary-050);color:var(--primary);
  border-color:rgba(43,58,143,.22);font-weight:600;
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{
  display:none;width:40px;height:40px;border:1px solid var(--line);background:#fff;
  border-radius:10px;flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;cursor:pointer;
  transition:transform .16s ease,background .16s ease,color .16s ease,border-color .16s ease,box-shadow .16s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sd-2)}
.btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary)}
.btn-text{background:none;color:var(--primary);padding:12px 4px}
.btn-text:hover{color:var(--primary-600)}
.btn-text .arrow{transition:transform .16s ease}
.btn-text:hover .arrow{transform:translateX(4px)}
.btn:disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn-sm{padding:9px 16px;font-size:14px}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding-top:20px;font-size:13px;color:var(--ink-2)}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.breadcrumb li::after{content:"/";margin-left:8px;color:var(--ink-3)}
.breadcrumb li:last-child::after{content:"";margin:0}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--ink);font-weight:600}

/* ---------- Hero ---------- */
.hero{
  position:relative;overflow:hidden;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  padding:clamp(36px,5vw,60px) 0 clamp(56px,7vw,88px);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(43,58,143,.55) 1px,transparent 1px);
  background-size:26px 26px;opacity:.05;
}
.hero-wave{position:absolute;left:0;right:0;bottom:-1px;width:100%;height:70px;opacity:.75;pointer-events:none}
.hero-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:minmax(0,1fr) 46%;
  gap:clamp(28px,4vw,56px);align-items:center;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--primary-050);color:var(--primary);
  font-size:13px;font-weight:600;margin-bottom:18px;
}
.eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--violet)}
.hero h1{
  font-size:clamp(30px,4.2vw,48px);
  font-weight:700;line-height:1.22;letter-spacing:-.4px;
}
.hero .lead{
  margin-top:18px;font-size:clamp(16px,1.5vw,18px);
  font-weight:600;color:var(--ink-2);
}
.hero .desc{margin-top:12px;color:var(--ink-2);max-width:56ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}
.quick-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:26px}
.quick-chips a{
  display:inline-flex;align-items:center;gap:6px;
  padding:7px 14px;border-radius:999px;
  background:var(--surface-2);color:var(--ink-2);font-size:13px;
  border:1px solid var(--line);transition:all .16s ease;
}
.quick-chips a:hover{color:var(--primary);border-color:rgba(43,58,143,.28);background:var(--primary-050);text-decoration:none}
.hero-media{position:relative}
.hero-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;
  border-radius:var(--r-hero);border:1px solid var(--line);box-shadow:var(--sd-2);
}
.hero-media::after{
  content:"";position:absolute;inset:auto -8px -8px auto;width:96px;height:96px;border-radius:20px;
  background:var(--primary-050);z-index:-1;
}

/* ---------- 数据条 ---------- */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sd-1);
  margin-top:-44px;position:relative;z-index:5;overflow:hidden;
}
.stat{padding:24px clamp(18px,2vw,26px)}
.stat + .stat{border-left:1px solid var(--line)}
.stat .num{
  font-size:clamp(28px,3.4vw,40px);font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.5px;
}
.stat .label{margin-top:8px;font-size:13px;color:var(--ink-2)}

/* ---------- 通用板块 ---------- */
.section{padding:clamp(64px,8vw,112px) 0}
.section.tight{padding-top:clamp(40px,5vw,64px)}
.section.alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:clamp(32px,4vw,52px)}
.section-head .kicker{
  font-size:13px;font-weight:600;color:var(--violet);
  letter-spacing:1.6px;text-transform:uppercase;margin-bottom:12px;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.3px;
}
.section-head p{margin-top:14px;color:var(--ink-2)}

/* ---------- 锚点子导航 ---------- */
.anchor-bar{
  position:sticky;top:72px;z-index:60;
  background:var(--bg);
  border-bottom:1px solid var(--line);
  padding:12px 0;
}
.anchor-bar .inner{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.anchor-bar .inner::-webkit-scrollbar{display:none}
.anchor-bar a{
  display:inline-flex;align-items:center;white-space:nowrap;
  padding:7px 14px;border-radius:999px;font-size:13px;
  background:var(--surface);border:1px solid var(--line);color:var(--ink-2);
  transition:all .16s ease;
}
.anchor-bar a:hover{color:var(--primary);border-color:rgba(43,58,143,.28);background:var(--primary-050);text-decoration:none}

/* ---------- 图文双列列表 ---------- */
.duo-list{display:flex;flex-direction:column}
.duo{
  display:grid;grid-template-columns:minmax(0,0.44fr) minmax(0,0.56fr);
  gap:clamp(24px,3.4vw,48px);align-items:center;
  padding:clamp(28px,3.4vw,44px) 0;
  border-bottom:1px solid var(--line);
  scroll-margin-top:140px;
}
.duo:first-child{padding-top:0}
.duo:last-child{border-bottom:0;padding-bottom:0}
.duo-media img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-img);
  border:1px solid var(--line);box-shadow:var(--sd-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.duo:hover .duo-media img{box-shadow:var(--sd-2)}
.duo-index{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:38px;height:26px;padding:0 10px;border-radius:999px;
  background:var(--surface-2);color:var(--ink-2);
  font-size:12px;font-weight:600;font-variant-numeric:tabular-nums;letter-spacing:.6px;
}
.duo-body h3{
  font-size:20px;font-weight:600;line-height:1.4;margin-top:12px;
}
.duo-body p{margin-top:10px;color:var(--ink-2)}
.point-list{margin-top:16px;display:flex;flex-direction:column;gap:8px}
.point-list li{
  position:relative;padding-left:20px;font-size:15px;color:var(--ink-2);
}
.point-list li::before{
  content:"";position:absolute;left:2px;top:12px;
  width:6px;height:6px;border-radius:50%;background:var(--violet);
}

/* ---------- 流程 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(18px,2.4vw,28px)}
.step{position:relative;padding-top:38px}
.step .dot{
  position:absolute;top:0;left:0;width:18px;height:18px;border-radius:50%;
  background:var(--surface);border:2px solid var(--primary);
}
.step .dot::after{
  content:"";position:absolute;inset:4px;border-radius:50%;background:var(--primary);
}
.step:not(:last-child)::before{
  content:"";position:absolute;top:8px;left:28px;right:calc(-1 * clamp(18px,2.4vw,28px));
  height:1px;background:var(--line);
}
.step .step-no{
  font-size:12px;font-weight:700;color:var(--gold);letter-spacing:1.4px;font-variant-numeric:tabular-nums;
}
.step h3{font-size:17px;font-weight:600;margin-top:6px}
.step p{margin-top:8px;font-size:14px;color:var(--ink-2);line-height:1.75}

/* ---------- 卡片（栏目速览） ---------- */
.card-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:clamp(18px,2.2vw,24px)}
.card{
  display:flex;flex-direction:column;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sd-1);overflow:hidden;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sd-3);border-color:rgba(43,58,143,.28)}
.card img{width:100%;aspect-ratio:16/10;object-fit:cover}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;flex:1}
.card-body h3{font-size:17px;font-weight:600}
.card-body p{margin-top:8px;font-size:14px;color:var(--ink-2);flex:1}
.card-body .btn-text{margin-top:12px;align-self:flex-start;padding:8px 0;font-size:14px}

/* ---------- FAQ ---------- */
.faq-list{max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sd-1);
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item.open{box-shadow:inset 3px 0 0 var(--primary),var(--sd-2);border-color:rgba(43,58,143,.24)}
.faq-q{
  width:100%;display:flex;justify-content:space-between;align-items:flex-start;gap:16px;
  background:none;border:0;text-align:left;cursor:pointer;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6;
}
.faq-q .plus{
  flex:0 0 auto;width:22px;height:22px;position:relative;margin-top:2px;
  transition:transform .22s ease;
}
.faq-q .plus::before,.faq-q .plus::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
}
.faq-q .plus::before{left:0;top:10px;width:22px;height:2px}
.faq-q .plus::after{left:10px;top:0;width:2px;height:22px}
.faq-item.open .plus{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;padding:0 22px;transition:max-height .28s ease}
.faq-a p{padding-bottom:20px;color:var(--ink-2);font-size:15px}

/* ---------- CTA / 联系 ---------- */
.cta-panel{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);
  gap:clamp(28px,4vw,56px);
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-hero);box-shadow:var(--sd-2);
  padding:clamp(28px,4vw,48px);
  position:relative;overflow:hidden;
}
.cta-panel::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;
  background:radial-gradient(rgba(108,92,231,.22) 1.5px,transparent 1.5px);
  background-size:16px 16px;opacity:.6;pointer-events:none;
}
.cta-copy{position:relative;z-index:1}
.cta-copy h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.35}
.cta-copy p{margin-top:14px;color:var(--ink-2)}
.cta-facts{margin-top:24px;display:flex;flex-direction:column;gap:10px}
.cta-facts li{font-size:14px;color:var(--ink-2);display:flex;gap:8px;align-items:flex-start}
.cta-facts li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--gold);margin-top:9px;flex:0 0 auto}
.form-card{position:relative;z-index:1}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:6px;font-weight:600}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;padding:11px 14px;font-size:15px;color:var(--ink);
  font-family:inherit;transition:border-color .16s ease,box-shadow .16s ease;
}
.field input{height:44px;padding:0 14px}
.field textarea{min-height:104px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(43,58,143,.3);
}
.form-note{font-size:13px;color:var(--ink-3);margin-top:12px;line-height:1.7}
.form-msg{margin-top:14px;font-size:14px;font-weight:600;display:none}
.form-msg.ok{display:block;color:var(--ok)}
.form-msg.err{display:block;color:var(--err)}

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--surface-2);border-top:1px solid var(--line);
  padding:clamp(48px,6vw,72px) 0 0;position:relative;overflow:hidden;margin-top:clamp(64px,8vw,112px);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:100%;pointer-events:none;
  background-image:radial-gradient(rgba(43,58,143,.5) 1px,transparent 1px);
  background-size:30px 30px;opacity:.05;
}
.footer-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:clamp(24px,3vw,40px);
}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:var(--ink)}
.footer-desc{margin-top:14px;font-size:14px;color:var(--ink-2);max-width:34ch}
.footer-col h4{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:14px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--ink-2)}
.footer-col a:hover{color:var(--primary)}
.footer-contact li{font-size:14px;color:var(--ink-2);line-height:1.7}
.footer-bottom{
  position:relative;z-index:1;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  margin-top:36px;padding:20px 0;border-top:1px solid var(--line);
  font-size:13px;color:var(--ink-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:minmax(0,1fr) 44%}
  .nav-chips .chip{padding:7px 11px;font-size:13px}
}
@media (max-width:991px){
  .nav-wrap{min-height:60px}
  .nav-toggle{display:flex}
  .nav-chips{
    position:fixed;left:0;right:0;top:60px;bottom:0;
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:6px;padding:22px;background:var(--surface);
    border-top:1px solid var(--line);
    transform:translateX(102%);transition:transform .26s ease;
    overflow-y:auto;z-index:90;
  }
  .nav-chips.open{transform:none}
  .nav-chips .chip{
    border-radius:12px;padding:14px 16px;font-size:15px;
    border-left:3px solid transparent;
  }
  .nav-chips .chip.active{border-left:3px solid var(--primary)}
  .hero-grid{grid-template-columns:1fr}
  .hero-media{order:2}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){border-left:0;border-top:1px solid var(--line)}
  .stat:nth-child(4){border-top:1px solid var(--line)}
  .steps{grid-template-columns:repeat(2,1fr)}
  .step:nth-child(2)::before{display:none}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .cta-panel{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:767px){
  body{font-size:15px}
  .duo{grid-template-columns:1fr;gap:20px}
  .duo:first-child{padding-top:0}
  .steps{grid-template-columns:1fr;gap:26px}
  .step:not(:last-child)::before{display:none}
  .anchor-bar{top:60px}
  .card-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:520px){
  .section{padding:40px 0}
  .section.tight{padding-top:32px}
  .hero{padding-bottom:56px}
  .quick-chips a{font-size:13px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .cta-panel{padding:24px}
}

/* roulang page: category2 */
:root{
  --bg:#F6F7FB;--surface:#FFFFFF;--surface-2:#F1F3F9;--line:#E3E6F0;
  --ink:#14172B;--ink-2:#4B5170;--ink-3:#7A8099;
  --primary:#2B3A8F;--primary-600:#22307A;--primary-050:#EDF0FB;
  --violet:#6C5CE7;--gold:#E5A83C;
  --ok:#2E7D5B;--warn:#B8862B;--err:#C0392B;
  --r-card:16px;--r-btn:12px;--r-img:14px;--r-chip:999px;
  --sd-1:0 1px 2px rgba(20,23,43,.05);
  --sd-2:0 8px 24px rgba(28,36,84,.08);
  --sd-3:0 18px 48px rgba(28,36,84,.12);
  --gap:clamp(20px,2.4vw,28px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--primary-600)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
button{cursor:pointer}
ul,ol{margin:0;padding:0}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;color:var(--ink)}
h1{font-size:clamp(30px,4.2vw,46px);line-height:1.22;letter-spacing:-.01em}
h2{font-size:clamp(23px,2.6vw,32px);line-height:1.3}
h3{font-size:20px;line-height:1.4;font-weight:600}
p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.skip-link{position:absolute;left:-9999px;top:8px;background:var(--primary);color:#fff;padding:10px 16px;border-radius:10px;z-index:200}
.skip-link:focus{left:16px;color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,32px)}
.section{padding:clamp(64px,8vw,104px) 0}
.section-alt{background:var(--surface-2);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:clamp(28px,3.4vw,44px)}
.section-head .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-050);border:1px solid rgba(43,58,143,.18);padding:5px 12px;border-radius:var(--r-chip);margin-bottom:14px}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px}

/* 导航 */
.site-header{position:sticky;top:0;z-index:60;background:var(--surface);border-bottom:1px solid var(--line);box-shadow:var(--sd-1)}
.nav-wrap{display:flex;align-items:center;gap:20px;min-height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);font-weight:700}
.brand:hover{color:var(--ink)}
.brand-mark{width:34px;height:34px;border-radius:11px;background:linear-gradient(135deg,var(--primary),var(--violet));color:#fff;display:grid;place-items:center;font-size:16px;font-weight:700;flex:0 0 auto}
.brand-text{font-size:15px;letter-spacing:.01em;white-space:nowrap}
.nav-chips{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none}
.nav-chips::-webkit-scrollbar{display:none}
.chip{display:inline-flex;align-items:center;gap:6px;padding:8px 15px;border-radius:var(--r-chip);font-size:14px;color:var(--ink-2);border:1px solid transparent;white-space:nowrap;transition:background .16s ease,color .16s ease,border-color .16s ease}
.chip:hover{background:var(--surface-2);color:var(--ink)}
.chip.active{background:var(--primary-050);color:var(--primary);border-color:rgba(43,58,143,.22);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.nav-toggle{display:none;width:42px;height:42px;border:1px solid var(--line);background:var(--surface);border-radius:12px;flex-direction:column;align-items:center;justify-content:center;gap:5px}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 22px;border-radius:var(--r-btn);font-weight:600;font-size:15px;border:1px solid transparent;transition:background .16s ease,color .16s ease,border-color .16s ease,box-shadow .16s ease,transform .16s ease;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sd-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-text{background:none;border:0;color:var(--primary);padding:0;font-weight:600}
.btn-text i{transition:transform .16s ease}
.btn-text:hover i{transform:translateX(4px)}
.btn[disabled],.btn.is-loading{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}

/* 面包屑 */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);padding-top:clamp(18px,2.6vw,28px)}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--line)}
.breadcrumb .current{color:var(--ink)}

/* Hero */
.page-hero{position:relative;background:var(--surface);border-bottom:1px solid var(--line);overflow:hidden}
.page-hero::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(43,58,143,.06) 1px,transparent 1px);background-size:22px 22px;pointer-events:none}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:clamp(28px,4vw,56px);align-items:center;padding:clamp(32px,4.4vw,56px) 0 clamp(40px,5vw,64px)}
.hero-copy .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--primary);background:var(--primary-050);border:1px solid rgba(43,58,143,.18);padding:5px 12px;border-radius:var(--r-chip);margin-bottom:16px}
.hero-copy h1{margin-bottom:16px}
.hero-copy .lead{font-size:17px;color:var(--ink-2);max-width:60ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-chips{display:flex;flex-wrap:wrap;gap:8px;margin-top:24px}
.hero-chips a{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--ink-2);background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-chip);padding:7px 13px}
.hero-chips a:hover{color:var(--primary);border-color:rgba(43,58,143,.3);background:var(--primary-050)}
.hero-media{position:relative;border-radius:20px;border:1px solid var(--line);overflow:hidden;background:var(--surface-2);box-shadow:var(--sd-2)}
.hero-media img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-media figcaption{position:absolute;left:14px;bottom:14px;background:rgba(255,255,255,.92);border:1px solid var(--line);border-radius:var(--r-chip);font-size:12px;color:var(--ink-2);padding:6px 12px}

/* 数据条 */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;background:var(--surface);border-top:1px solid var(--line)}
.stats div{padding:22px clamp(10px,2vw,24px);border-left:1px solid var(--line);text-align:left}
.stats div:first-child{border-left:0}
.stats .num{font-size:clamp(26px,3vw,34px);font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.1}
.stats .lbl{font-size:13px;color:var(--ink-3);margin-top:6px}

/* 文档型布局 */
.doc-layout{display:grid;grid-template-columns:250px minmax(0,1fr);gap:clamp(28px,4vw,56px);align-items:start}
.doc-aside{position:sticky;top:96px;background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sd-1);padding:20px}
.doc-aside h4{font-size:14px;color:var(--ink);margin-bottom:12px;letter-spacing:.02em}
.doc-aside ul{list-style:none;display:flex;flex-direction:column;gap:2px}
.doc-aside a{display:block;font-size:14px;color:var(--ink-2);padding:9px 12px;border-radius:10px;border-left:3px solid transparent;transition:background .16s ease,color .16s ease,border-color .16s ease}
.doc-aside a:hover{background:var(--surface-2);color:var(--ink)}
.doc-aside a.on{background:var(--primary-050);color:var(--primary);border-left-color:var(--primary);font-weight:600}
.doc-aside .aside-note{margin-top:16px;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);line-height:1.7}

.doc-body article{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sd-1);padding:clamp(22px,3vw,38px)}
.doc-body section{scroll-margin-top:100px}
.doc-body section + section{margin-top:40px;padding-top:34px;border-top:1px solid var(--line)}
.doc-body h2{margin-bottom:16px}
.doc-body h3{font-size:18px;margin:22px 0 10px}
.doc-body p{color:var(--ink-2);line-height:1.85;margin-bottom:14px}
.pts{list-style:none;display:flex;flex-direction:column;gap:12px;margin:18px 0 6px}
.pts li{position:relative;padding-left:30px;color:var(--ink-2);line-height:1.8}
.pts li::before{content:"";position:absolute;left:0;top:9px;width:16px;height:16px;border-radius:50%;background:var(--primary-050);border:1px solid rgba(43,58,143,.25)}
.pts li::after{content:"";position:absolute;left:6px;top:15px;width:4px;height:4px;border-radius:50%;background:var(--primary)}
.pts li strong{color:var(--ink);font-weight:600}

.table-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-img);margin:20px 0 8px}
table{width:100%;border-collapse:collapse;min-width:560px;font-size:14px}
th,td{text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);color:var(--ink-2)}
thead th{background:var(--surface-2);color:var(--ink);font-size:13px;font-weight:600;white-space:nowrap}
tbody tr:nth-child(even){background:#FAFBFE}
tbody tr:last-child td{border-bottom:0}
td:first-child{color:var(--ink);font-weight:600}

.figure-block{margin-top:26px}
.img-frame{border:1px solid var(--line);border-radius:var(--r-img);overflow:hidden;background:var(--surface-2)}
.img-frame img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .3s ease}
.img-frame:hover img{transform:scale(1.02)}
.figure-block figcaption{margin-top:10px;font-size:13px;color:var(--ink-3);text-align:center}

/* 场景卡片 */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sd-1);padding:24px;transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease}
.card:hover{border-color:rgba(43,58,143,.28);box-shadow:var(--sd-3);transform:translateY(-3px)}
.card .ico{width:42px;height:42px;border-radius:12px;background:var(--primary-050);color:var(--primary);display:grid;place-items:center;font-size:17px;margin-bottom:16px}
.card h3{margin-bottom:10px}
.card p{color:var(--ink-2);font-size:15px;line-height:1.8}
.card .tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px}
.tag{font-size:12px;padding:4px 10px;border-radius:var(--r-chip);background:var(--surface-2);color:var(--ink-2);border:1px solid var(--line)}
.tag.gold{background:#FDF5E7;color:var(--warn);border-color:#F1E1C2}

/* 步骤 */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);list-style:none}
.steps li{position:relative;padding-top:54px}
.steps li::before{content:"";position:absolute;top:16px;left:40px;right:calc(-1 * var(--gap));height:1px;background:var(--line)}
.steps li:last-child::before{display:none}
.step-dot{position:absolute;top:0;left:0;width:34px;height:34px;border-radius:50%;background:var(--primary-050);border:1px solid rgba(43,58,143,.22);color:var(--primary);display:grid;place-items:center;font-size:13px;font-weight:700;font-variant-numeric:tabular-nums}
.steps h3{font-size:17px;margin-bottom:8px}
.steps p{color:var(--ink-2);font-size:14px;line-height:1.8}

/* FAQ */
.faq{max-width:900px;display:flex;flex-direction:column;gap:12px}
.faq-item{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sd-1);overflow:hidden;position:relative;transition:border-color .18s ease}
.faq-item::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:transparent;transition:background .18s ease}
.faq-item.open{border-color:rgba(43,58,143,.28)}
.faq-item.open::before{background:var(--primary)}
.faq-q{width:100%;background:none;border:0;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;text-align:left;padding:20px 22px;font-size:16px;font-weight:600;color:var(--ink);line-height:1.6}
.faq-q i{color:var(--primary);font-size:14px;margin-top:5px;transition:transform .22s ease;flex:0 0 auto}
.faq-item.open .faq-q i{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 22px 20px;color:var(--ink-2);font-size:15px;line-height:1.85;margin:0}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:var(--gap);align-items:start}
.panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sd-1);padding:clamp(22px,2.6vw,30px)}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:7px;font-weight:600}
.field input,.field textarea{width:100%;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);padding:12px 14px;font-size:15px;color:var(--ink);transition:border-color .16s ease,box-shadow .16s ease;min-height:44px}
.field textarea{min-height:112px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,58,143,.3)}
.field .err-msg{display:none;font-size:13px;color:var(--err);margin-top:6px}
.field.has-error input,.field.has-error textarea{border-color:var(--err)}
.field.has-error .err-msg{display:block}
.form-note{font-size:13px;color:var(--ink-3);margin-top:14px;line-height:1.7}
.form-result{margin-top:14px;font-size:14px;font-weight:600}
.form-result.ok{color:var(--ok)}
.info-card dl{margin:0;display:flex;flex-direction:column;gap:16px}
.info-card dt{font-size:13px;color:var(--ink-3);margin-bottom:4px}
.info-card dd{margin:0;font-size:15px;color:var(--ink)}
.map-holder{margin-top:20px;border:1px dashed var(--line);border-radius:var(--r-img);background:var(--surface-2);padding:26px 18px;text-align:center;color:var(--ink-3);font-size:13px}
.map-holder i{display:block;font-size:22px;color:var(--violet);margin-bottom:8px}

/* 页脚 */
.site-footer{background:var(--surface-2);border-top:1px solid var(--line);position:relative;overflow:hidden;padding:clamp(44px,5vw,64px) 0 0}
.site-footer::before{content:"";position:absolute;inset:0;background-image:radial-gradient(rgba(43,58,143,.05) 1px,transparent 1px);background-size:24px 24px;pointer-events:none}
.footer-grid{position:relative;display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:clamp(24px,3vw,40px)}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:15px;margin-bottom:14px}
.footer-desc{font-size:14px;color:var(--ink-2);line-height:1.8;max-width:34ch}
.footer-col h4{font-size:14px;font-weight:600;margin-bottom:14px;color:var(--ink)}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:var(--ink-2)}
.footer-col a:hover{color:var(--primary)}
.footer-contact li{font-size:14px;color:var(--ink-2);line-height:1.7}
.footer-bottom{position:relative;display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;align-items:center;margin-top:clamp(28px,3.4vw,44px);padding:20px 0;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3)}

@media (max-width:1199px){
  .hero-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:991px){
  .nav-wrap{min-height:60px}
  .nav-chips{position:fixed;left:0;right:0;top:60px;bottom:0;background:var(--surface);flex-direction:column;align-items:stretch;justify-content:flex-start;gap:4px;padding:18px;display:none;overflow-y:auto;z-index:55;border-top:1px solid var(--line);box-shadow:var(--sd-2)}
  .nav-chips.open{display:flex}
  .nav-chips .chip{border-radius:10px;padding:14px 16px;font-size:15px;border-left:3px solid transparent}
  .nav-chips .chip.active{border-left-color:var(--primary);border-color:transparent;background:var(--primary-050)}
  .nav-toggle{display:flex}
  .brand-text{font-size:14px}
  .nav-actions .btn-primary{display:none}
  .hero-grid{grid-template-columns:1fr;padding-top:28px}
  .hero-media{order:2}
  .doc-layout{grid-template-columns:1fr}
  .doc-aside{position:static;padding:16px}
  .doc-aside ul{flex-direction:row;flex-wrap:wrap}
  .doc-aside a{border-left:0;border:1px solid var(--line);border-radius:var(--r-chip);padding:7px 13px;font-size:13px}
  .doc-aside a.on{border-color:rgba(43,58,143,.28)}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .contact-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .stats{grid-template-columns:repeat(2,1fr)}
  .stats div:nth-child(3){border-left:0}
  .stats div:nth-child(1),.stats div:nth-child(2){border-bottom:1px solid var(--line)}
  .card-grid{grid-template-columns:1fr}
  .steps{grid-template-columns:1fr;gap:22px}
  .steps li{padding-top:0;padding-left:52px;min-height:40px}
  .steps li::before{left:16px;top:38px;right:auto;bottom:-18px;width:1px;height:auto;top:40px;bottom:-14px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .doc-body article{padding:20px 18px}
}
@media (max-width:519px){
  .section{padding:44px 0}
  .hero-copy h1{font-size:clamp(26px,7vw,32px)}
  .hero-actions .btn{width:100%}
  .hero-chips a,.chip{font-size:13px}
  .doc-aside a{font-size:13px}
  .faq-q{font-size:15px;padding:17px 18px}
  .faq-a p{padding:0 18px 18px}
}

/* roulang page: category3 */
:root{
  --bg:#F6F7FB; --surface:#FFFFFF; --surface-2:#F1F3F9; --line:#E3E6F0;
  --ink:#14172B; --ink-2:#4B5170; --ink-3:#7A8099;
  --primary:#2B3A8F; --primary-600:#22307A; --primary-050:#EDF0FB;
  --violet:#6C5CE7; --gold:#E5A83C;
  --ok:#2E7D5B; --err:#C0392B;
  --r-card:16px; --r-btn:12px; --r-img:14px; --r-hero:20px; --r-pill:999px;
  --sd-1:0 1px 2px rgba(20,23,43,.05);
  --sd-2:0 8px 24px rgba(28,36,84,.08);
  --sd-3:0 18px 48px rgba(28,36,84,.12);
  --dur:160ms ease;
  --pad-y:clamp(64px,8vw,112px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;text-underline-offset:2px;transition:color var(--dur),border-color var(--dur),background-color var(--dur)}
a:hover{color:var(--primary-600)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.3;font-weight:700;letter-spacing:.2px}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,32px)}

/* ============ header ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:var(--surface);
  border-bottom:1px solid var(--line);box-shadow:var(--sd-1);
}
.nav-wrap{display:flex;align-items:center;gap:22px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--primary);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:17px;font-weight:700;
  box-shadow:0 4px 12px rgba(43,58,143,.24);
}
.brand-text{font-weight:700;font-size:17px;color:var(--ink);white-space:nowrap}
.nav-chips{display:flex;align-items:center;gap:8px;flex:1;justify-content:center}
.chip{
  display:inline-flex;align-items:center;height:36px;padding:0 14px;border-radius:var(--r-pill);
  font-size:14px;font-weight:500;color:var(--ink-2);background:transparent;
  border:1px solid transparent;white-space:nowrap;transition:all var(--dur);
}
.chip:hover{background:var(--surface-2);color:var(--ink)}
.chip.active{background:var(--primary-050);color:var(--primary);border-color:rgba(43,58,143,.22);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:var(--surface);
  border-radius:12px;cursor:pointer;padding:10px;
}
.nav-toggle span{display:block;height:2px;background:var(--ink-2);border-radius:2px;margin:4px 0}

/* ============ buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all var(--dur);white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 2px 8px rgba(43,58,143,.2)}
.btn-primary:hover{background:var(--primary-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sd-2);border-color:var(--gold)}
.btn-outline{background:var(--surface);color:var(--ink);border-color:var(--line)}
.btn-outline:hover{border-color:var(--primary);color:var(--primary)}
.btn-ghost{background:transparent;color:var(--primary);padding:12px 4px}
.btn-ghost .arrow{transition:transform var(--dur);display:inline-block}
.btn-ghost:hover .arrow{transform:translateX(4px)}
.btn:disabled,.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none}

/* ============ breadcrumb ============ */
.breadcrumb{padding:20px 0 0;font-size:13px;color:var(--ink-3)}
.breadcrumb ol{display:flex;flex-wrap:wrap;gap:8px;align-items:center}
.breadcrumb li::after{content:"/";margin-left:8px;color:var(--line)}
.breadcrumb li:last-child::after{content:"";margin:0}
.breadcrumb a{color:var(--ink-2)}
.breadcrumb a:hover{color:var(--primary)}

/* ============ page head ============ */
.page-head{padding:36px 0 clamp(40px,5vw,64px)}
.page-head-inner{
  display:grid;grid-template-columns:1.15fr .85fr;gap:clamp(24px,4vw,56px);align-items:center;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-hero);
  padding:clamp(24px,4vw,48px);box-shadow:var(--sd-1);position:relative;overflow:hidden;
}
.page-head-inner::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;pointer-events:none;
  background-image:radial-gradient(rgba(108,92,231,.5) 1px,transparent 1px);
  background-size:14px 14px;opacity:.06;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--primary);background:var(--primary-050);border-radius:var(--r-pill);padding:6px 14px;
}
.page-head h1{
  margin:18px 0 14px;font-size:clamp(30px,4.2vw,48px);font-weight:700;line-height:1.22;letter-spacing:.4px;
}
.page-head .lead{color:var(--ink-2);font-size:16px;max-width:56ch}
.quick-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.quick-chips a{
  font-size:13px;padding:7px 14px;border-radius:var(--r-pill);
  background:var(--surface-2);color:var(--ink-2);border:1px solid transparent;
}
.quick-chips a:hover{background:var(--primary-050);color:var(--primary);border-color:rgba(43,58,143,.2)}
.page-head-art{
  border-radius:var(--r-hero);border:1px solid var(--line);overflow:hidden;
  box-shadow:var(--sd-2);background:var(--surface-2);
}
.page-head-art img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* ============ section base ============ */
.section{padding:var(--pad-y) 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:clamp(28px,4vw,48px)}
.section-head h2{font-size:clamp(24px,2.6vw,34px);line-height:1.3}
.section-head p{color:var(--ink-2);font-size:15px;margin-top:10px;max-width:62ch}
.section-head .more{font-size:14px;font-weight:600;white-space:nowrap}
.section-head .more .arrow{transition:transform var(--dur);display:inline-block}
.section-head .more:hover .arrow{transform:translateX(4px)}
.section-alt{background:var(--surface)}

/* ============ filter row ============ */
.filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.filter-chip{
  display:inline-flex;align-items:center;height:38px;padding:0 16px;border-radius:var(--r-pill);
  background:var(--surface);border:1px solid var(--line);font-size:14px;color:var(--ink-2);font-weight:500;
}
.filter-chip:hover{border-color:rgba(43,58,143,.28);color:var(--primary);background:var(--primary-050)}
.filter-chip.is-active{background:var(--primary);border-color:var(--primary);color:#fff}

/* ============ card grid ============ */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:clamp(18px,2.2vw,26px)}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sd-1);overflow:hidden;transition:all var(--dur);display:flex;
}
.card-link{display:flex;flex-direction:column;width:100%;color:inherit}
.card:hover{border-color:rgba(43,58,143,.28);box-shadow:var(--sd-3);transform:translateY(-3px)}
.card-media{overflow:hidden;background:var(--surface-2)}
.card-media img{width:100%;aspect-ratio:3/2;object-fit:cover;transition:transform .35s ease}
.card:hover .card-media img{transform:scale(1.03)}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-body h3{font-size:19px;font-weight:600;line-height:1.4}
.card-body p{font-size:14.5px;color:var(--ink-2);line-height:1.75}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;gap:12px;font-size:13px;color:var(--ink-3);
}
.card-foot .cat{
  background:var(--primary-050);color:var(--primary);border-radius:var(--r-pill);padding:3px 10px;font-size:12px;font-weight:600;
}
.card-foot .arrow{margin-left:auto;color:var(--primary);font-size:15px}
.badge{display:inline-flex;align-items:center;font-size:12px;font-weight:700;border-radius:var(--r-pill);padding:3px 10px}
.badge-gold{background:rgba(229,168,60,.14);color:#8C6212;border:1px solid rgba(229,168,60,.4)}
.feature-card{grid-column:span 2}
.feature-card .card-link{flex-direction:row}
.feature-card .card-media{flex:0 0 46%;display:flex}
.feature-card .card-media img{aspect-ratio:auto;height:100%;min-height:260px}
.feature-card .card-body{padding:26px 28px;justify-content:center}
.feature-card .card-body h3{font-size:23px}

/* ============ stat bar ============ */
.stat-bar{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sd-1);overflow:hidden;
}
.stat-item{padding:28px 26px;border-left:1px solid var(--line)}
.stat-item:first-child{border-left:0}
.stat-num{
  font-size:clamp(32px,4vw,44px);font-weight:700;color:var(--primary);
  font-variant-numeric:tabular-nums;line-height:1.1;letter-spacing:-.5px;
}
.stat-num small{font-size:16px;font-weight:600;margin-left:4px;color:var(--ink-2)}
.stat-label{font-size:13.5px;color:var(--ink-3);margin-top:8px}

/* ============ steps ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;position:relative}
.step{position:relative;padding-top:34px}
.step::before{
  content:"";position:absolute;top:9px;left:0;width:100%;height:1px;background:var(--line);
}
.step:last-child::before{width:100%}
.step-dot{
  position:absolute;top:0;left:0;width:18px;height:18px;border-radius:50%;
  background:var(--surface);border:2px solid var(--primary);
}
.step:nth-child(1) .step-dot{background:var(--primary)}
.step h3{font-size:18px;font-weight:600;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--ink-2)}
.step-no{font-size:12px;font-weight:700;color:var(--ink-3);letter-spacing:1px;display:block;margin-bottom:6px}

/* ============ faq ============ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sd-1);overflow:hidden;transition:border-color var(--dur),box-shadow var(--dur);
}
.faq-item[open]{border-color:rgba(43,58,143,.28);box-shadow:var(--sd-2)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px 20px 20px;
  display:flex;align-items:center;gap:14px;font-size:16.5px;font-weight:600;line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";width:3px;align-self:stretch;min-height:22px;border-radius:2px;background:transparent;
  transition:background var(--dur);flex-shrink:0;
}
.faq-item[open] summary::before{background:var(--primary)}
.faq-item summary::after{
  content:"+";margin-left:auto;font-size:22px;font-weight:400;color:var(--primary);
  transition:transform var(--dur);line-height:1;flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(45deg)}
.faq-answer{padding:0 24px 22px 37px;color:var(--ink-2);font-size:15px;line-height:1.85}

/* ============ cta / contact ============ */
.cta-grid{display:grid;grid-template-columns:1.25fr .75fr;gap:clamp(22px,3vw,32px);align-items:start}
.form-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:clamp(24px,3vg,34px);box-shadow:var(--sd-1);padding:clamp(24px,3vw,34px);
}
.form-card h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:10px}
.form-card > p{color:var(--ink-2);font-size:15px;margin-bottom:24px}
.field{margin-bottom:18px}
.field label{display:block;font-size:13px;color:var(--ink-2);margin-bottom:7px;font-weight:500}
.field input,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--r-btn);background:var(--surface);
  padding:11px 14px;font-size:15px;transition:border-color var(--dur),box-shadow var(--dur);
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,58,143,.3);
}
.form-note{font-size:13px;color:var(--ink-3);margin-top:14px;line-height:1.7}
.info-card{
  background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-card);
  padding:clamp(24px,3vw,30px);
}
.info-card h3{font-size:18px;margin-bottom:18px}
.info-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:14.5px;color:var(--ink-2)}
.info-list li:last-child{border-bottom:0}
.info-list b{display:block;color:var(--ink);font-weight:600;font-size:14px;margin-bottom:2px}
.info-map{
  margin-top:18px;height:150px;border-radius:var(--r-img);border:1px solid var(--line);
  background:var(--surface);display:flex;align-items:center;justify-content:center;
  color:var(--ink-3);font-size:13px;
}

/* ============ footer ============ */
.site-footer{background:var(--surface-2);border-top:1px solid var(--line);margin-top:0;position:relative;overflow:hidden}
.site-footer::after{
  content:"";position:absolute;left:-40px;bottom:-40px;width:240px;height:240px;pointer-events:none;
  background-image:radial-gradient(rgba(43,58,143,.6) 1px,transparent 1px);
  background-size:16px 16px;opacity:.05;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:clamp(22px,3vw,40px);
  padding:clamp(48px,6vw,72px) 0 40px;position:relative;z-index:1;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:var(--ink)}
.footer-desc{font-size:14px;color:var(--ink-2);margin-top:16px;max-width:34ch;line-height:1.8}
.footer-col h4{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--ink-2)}
.footer-col a:hover{color:var(--primary)}
.footer-contact li{font-size:14px;color:var(--ink-2);line-height:1.7}
.footer-bottom{
  border-top:1px solid var(--line);padding:20px 0;display:flex;flex-wrap:wrap;gap:10px;
  justify-content:space-between;font-size:13px;color:var(--ink-3);position:relative;z-index:1;
}

/* ============ responsive ============ */
@media (max-width:1199px){
  .container{max-width:1140px}
}
@media (max-width:991px){
  .nav-wrap{height:64px;gap:14px}
  .nav-chips{
    position:fixed;top:64px;right:0;left:0;bottom:0;flex-direction:column;align-items:stretch;
    justify-content:flex-start;gap:6px;background:var(--surface);padding:20px clamp(16px,4vw,32px);
    transform:translateX(102%);transition:transform .26s ease;box-shadow:var(--sd-3);
    overflow-y:auto;z-index:55;
  }
  .nav-chips.open{transform:translateX(0)}
  .chip{height:46px;font-size:15px;border-radius:12px;border-left:3px solid transparent}
  .chip.active{border-left-color:var(--primary)}
  .nav-toggle{display:block}
  .nav-actions .btn{display:none}
  .page-head-inner{grid-template-columns:1fr}
  .page-head-art{order:-1}
  .page-head-art img{aspect-ratio:16/9}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .feature-card{grid-column:span 2}
  .feature-card .card-link{flex-direction:column}
  .feature-card .card-media{flex:none}
  .feature-card .card-media img{aspect-ratio:3/2;min-height:0;height:auto}
  .stat-bar{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(3){border-left:0}
  .stat-item:nth-child(n+3){border-top:1px solid var(--line)}
  .steps{grid-template-columns:repeat(2,1fr);gap:26px}
  .cta-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  .section-head{flex-direction:column;align-items:flex-start;gap:14px}
  .card-grid{grid-template-columns:1fr}
  .feature-card{grid-column:span 1}
  .steps{grid-template-columns:1fr}
  .step::before{display:none}
  .step{padding-top:26px;padding-left:30px}
  .step-dot{top:2px;left:0}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column}
}
@media (max-width:519px){
  :root{--pad-y:40px}
  .page-head h1{font-size:clamp(26px,8vw,32px)}
  .chip{font-size:13px}
  .filter-chip{font-size:13px;height:34px;padding:0 13px}
  .stat-item{padding:22px 18px}
  .card-body{padding:18px}
  .faq-item summary{padding:16px;font-size:15.5px}
  .faq-answer{padding:0 16px 18px 32px}
}

/* roulang page: category4 */
:root{
  --bg:#F6F7FB;--surface:#FFFFFF;--surface-2:#F1F3F9;--line:#E3E6F0;
  --ink:#14172B;--ink-2:#4B5170;--ink-3:#7A8099;
  --primary:#2B3A8F;--primary-600:#22307A;--primary-050:#EDF0FB;
  --violet:#6C5CE7;--gold:#E5A83C;
  --ok:#2E7D5B;--warn:#B8862B;--err:#C0392B;
  --r-card:16px;--r-btn:12px;--r-img:14px;--r-hero:20px;--r-chip:999px;
  --sd-1:0 1px 2px rgba(20,23,43,.05);
  --sd-2:0 8px 24px rgba(28,36,84,.08);
  --sd-3:0 18px 48px rgba(28,36,84,.12);
  --sec:clamp(64px,8vw,112px);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;-webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding-left:1.15em}
img{max-width:100%;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color .16s ease}
a:hover{color:var(--primary-600);text-decoration:underline;text-underline-offset:2px}
button{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 clamp(16px,4vw,32px)}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum"}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;background:var(--surface);
  border-bottom:1px solid var(--line);box-shadow:var(--sd-1);
}
.nav-wrap{display:flex;align-items:center;gap:clamp(12px,2vw,24px);height:72px}
.brand{display:flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;font-size:16px;letter-spacing:.2px;flex:none}
.brand:hover{text-decoration:none;color:var(--primary)}
.brand-mark{
  width:34px;height:34px;border-radius:10px;background:var(--primary);color:#fff;
  display:grid;place-items:center;font-size:16px;font-weight:700;position:relative;flex:none;
}
.brand-mark::after{
  content:"";position:absolute;right:-2px;top:-2px;width:8px;height:8px;border-radius:50%;
  background:var(--gold);border:2px solid var(--surface);
}
.brand-text{white-space:nowrap}
.nav-chips{display:flex;align-items:center;gap:6px;flex:1 1 auto;overflow-x:auto;scrollbar-width:none}
.nav-chips::-webkit-scrollbar{display:none}
.chip{
  display:inline-flex;align-items:center;gap:6px;padding:8px 14px;border-radius:var(--r-chip);
  font-size:14px;line-height:1.2;color:var(--ink-2);border:1px solid transparent;white-space:nowrap;
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.chip:hover{background:var(--surface-2);color:var(--ink);text-decoration:none}
.chip.active{background:var(--primary-050);color:var(--primary);border-color:rgba(43,58,143,.22);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:10px;flex:none;margin-left:auto}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:12px;background:var(--surface);
  cursor:pointer;padding:0;place-items:center;gap:4px;flex-direction:column;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-weight:600;font-size:15px;line-height:1;cursor:pointer;
  transition:transform .16s ease,box-shadow .16s ease,background .16s ease,color .16s ease,border-color .16s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-600);color:#fff;transform:translateY(-2px);box-shadow:var(--sd-2)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:var(--surface);border-color:var(--line);color:var(--ink)}
.btn-ghost:hover{border-color:var(--primary);color:var(--primary);background:var(--surface)}
.btn-text{background:none;padding:0;color:var(--primary);font-weight:600}
.btn-text i{transition:transform .16s ease}
.btn-text:hover{color:var(--primary-600)}
.btn-text:hover i{transform:translateX(4px)}
.btn[disabled]{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none}
.btn.is-loading{opacity:.7;pointer-events:none}
.btn.is-loading::after{
  content:"";width:8px;height:8px;border-radius:50%;background:currentColor;
  animation:pulse .9s ease-in-out infinite;margin-left:2px;
}
@keyframes pulse{0%,100%{opacity:.3;transform:scale(.8)}50%{opacity:1;transform:scale(1.15)}}

/* ---------- breadcrumb ---------- */
.crumb{padding:18px 0 0;font-size:13px;color:var(--ink-3)}
.crumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:8px;padding:0;margin:0;align-items:center}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:var(--ink-3)}
.crumb a{color:var(--ink-2)}
.crumb a:hover{color:var(--primary)}
.crumb [aria-current]{color:var(--ink)}

/* ---------- hero ---------- */
.hero{position:relative;overflow:hidden;padding:clamp(36px,5vw,64px) 0 clamp(44px,6vw,76px)}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:radial-gradient(rgba(43,58,143,.10) 1px,transparent 1px);
  background-size:24px 24px;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0) 78%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),rgba(0,0,0,0) 78%);
}
.hero .container{position:relative}
.hero-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,46%);gap:clamp(24px,4vw,56px);align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:var(--r-chip);
  background:var(--primary-050);color:var(--primary);font-size:13px;font-weight:600;margin-bottom:18px;
}
.eyebrow i{color:var(--violet)}
.hero h1{font-size:clamp(30px,4.2vw,48px);font-weight:700;line-height:1.22;letter-spacing:-.2px}
.hero-sub{margin-top:16px;font-size:clamp(16px,1.5vw,19px);color:var(--ink-2);line-height:1.7;max-width:36em}
.hero-desc{margin-top:14px;color:var(--ink-2);font-size:15.5px;max-width:38em}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px}
.hero-quick{display:flex;flex-wrap:wrap;gap:8px;margin-top:22px}
.hero-quick .chip{background:var(--surface);border-color:var(--line);box-shadow:var(--sd-1)}
.hero-quick .chip i{font-size:12px;color:var(--violet)}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-hero);
  border:1px solid var(--line);box-shadow:var(--sd-2);background:var(--surface-2);
}
.hero-figure figcaption{margin-top:12px;font-size:13px;color:var(--ink-3);text-align:center}

/* ---------- stats ---------- */
.stats{margin-top:clamp(32px,4vw,52px)}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sd-1);overflow:hidden;
}
.stat{padding:22px clamp(14px,2vw,26px);border-left:1px solid var(--line)}
.stat:first-child{border-left:0}
.stat-num{font-size:clamp(26px,3.2vw,38px);font-weight:700;color:var(--primary);line-height:1.2}
.stat-num small{font-size:15px;font-weight:600;margin-left:2px}
.stat-label{margin-top:6px;font-size:13px;color:var(--ink-3)}

/* ---------- section base ---------- */
.section{padding:var(--sec) 0}
.section.alt{background:var(--surface)}
.sec-head{max-width:760px;margin-bottom:clamp(28px,4vw,46px)}
.sec-eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--violet);text-transform:uppercase;margin-bottom:12px;
}
.sec-title{font-size:clamp(24px,2.6vw,34px);font-weight:700;line-height:1.3}
.sec-desc{margin-top:14px;color:var(--ink-2);font-size:15.5px;max-width:44em}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap}

/* ---------- flow / timeline ---------- */
.flow-section{
  position:relative;background-color:var(--bg);
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;background-repeat:no-repeat;
}
.flow-section::before{content:"";position:absolute;inset:0;background:rgba(246,247,251,.94)}
.flow-section>.container{position:relative;z-index:1}
.timeline{position:relative;margin-top:8px;padding-left:0}
.timeline::before{
  content:"";position:absolute;left:19px;top:14px;bottom:14px;width:2px;background:var(--line);border-radius:2px;
}
.tl-item{position:relative;display:grid;grid-template-columns:40px minmax(0,1fr);gap:clamp(14px,2vw,26px);padding-bottom:22px}
.tl-item:last-child{padding-bottom:0}
.tl-dot{
  width:40px;height:40px;border-radius:50%;background:var(--surface);
  border:2px solid var(--primary);color:var(--primary);
  display:grid;place-items:center;font-weight:700;font-size:14px;z-index:1;
  transition:background .18s ease,color .18s ease,transform .18s ease;
}
.tl-item:hover .tl-dot{background:var(--primary);color:#fff;transform:scale(1.04)}
.tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:clamp(18px,2.4vw,26px);box-shadow:var(--sd-1);
  transition:border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.tl-item:hover .tl-card{border-color:rgba(43,58,143,.28);box-shadow:var(--sd-3);transform:translateY(-3px)}
.tl-card h3{font-size:19px;font-weight:600;line-height:1.4;display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tl-tag{
  display:inline-flex;align-items:center;padding:2px 10px;border-radius:var(--r-chip);
  background:var(--surface-2);color:var(--ink-2);font-size:12px;font-weight:500;line-height:1.8;
}
.tl-tag.gold{background:rgba(229,168,60,.14);color:var(--warn)}
.tl-card p{margin-top:10px;color:var(--ink-2);font-size:15px}
.tl-meta{margin-top:14px;padding-top:12px;border-top:1px dashed var(--line);font-size:13px;color:var(--ink-3);display:flex;flex-wrap:wrap;gap:14px}
.tl-meta span{display:inline-flex;align-items:center;gap:6px}
.tl-meta i{color:var(--violet);font-size:12px}

/* ---------- checklist ---------- */
.check-wrap{display:grid;grid-template-columns:minmax(0,.85fr) minmax(0,1.15fr);gap:clamp(24px,4vw,52px);align-items:start}
.check-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:clamp(20px,3vw,30px);box-shadow:var(--sd-1)}
.check-list{list-style:none;padding:0;margin:0;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 24px}
.check-list li{display:grid;grid-template-columns:22px minmax(0,1fr);gap:10px;font-size:15px;color:var(--ink-2)}
.check-list i{color:var(--ok);margin-top:5px;font-size:14px}
.check-list strong{color:var(--ink);font-weight:600;display:block;margin-bottom:2px;font-size:15px}
.note-card{
  margin-top:20px;padding:16px 18px;border-radius:var(--r-img);
  background:var(--primary-050);border-left:4px solid var(--primary);color:var(--ink-2);font-size:14.5px;
}
.note-card b{color:var(--primary)}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;max-width:920px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sd-1);position:relative;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--primary);
  transform:scaleY(0);transform-origin:top;transition:transform .24s ease;
}
.faq-item.open{border-color:rgba(43,58,143,.28);box-shadow:var(--sd-2)}
.faq-item.open::before{transform:scaleY(1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px clamp(16px,2.4vw,24px);background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;line-height:1.6;color:var(--ink);
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  flex:none;width:26px;height:26px;border-radius:50%;background:var(--surface-2);
  display:grid;place-items:center;position:relative;transition:background .2s ease,transform .24s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--primary);border-radius:2px;
}
.faq-icon::before{width:12px;height:2px}
.faq-icon::after{width:2px;height:12px}
.faq-item.open .faq-icon{background:var(--primary-050);transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 clamp(16px,2.4vw,24px) 20px;color:var(--ink-2);font-size:15px;line-height:1.85}

/* ---------- cta / form ---------- */
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:clamp(20px,3vw,32px);align-items:start}
.card{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sd-1)}
.form-card{padding:clamp(20px,3vw,32px)}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--ink-2);font-weight:500;margin-bottom:6px}
.field input,.field textarea,.field select{
  width:100%;min-height:44px;padding:10px 14px;font-size:15px;font-family:inherit;color:var(--ink);
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-btn);
  transition:border-color .16s ease,box-shadow .16s ease;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3)}
.field input:focus,.field textarea:focus,.field select:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(43,58,143,.3);
}
.field.invalid input,.field.invalid textarea{border-color:var(--err)}
.field-error{display:none;margin-top:6px;font-size:13px;color:var(--err)}
.field.invalid .field-error{display:block}
.form-note{margin-top:14px;font-size:13px;color:var(--ink-3);line-height:1.7}
.form-status{margin-top:14px;font-size:14px;display:none}
.form-status.ok{display:block;color:var(--ok)}
.form-status.err{display:block;color:var(--err)}
.form-row{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
.info-card{padding:clamp(20px,3vw,32px)}
.info-card h3{font-size:19px;font-weight:600;margin-bottom:14px}
.info-list{list-style:none;padding:0;margin:0;display:grid;gap:14px}
.info-list li{display:grid;grid-template-columns:38px minmax(0,1fr);gap:12px;align-items:start;font-size:14.5px;color:var(--ink-2)}
.info-list i{
  width:38px;height:38px;border-radius:12px;background:var(--primary-050);color:var(--primary);
  display:grid;place-items:center;font-size:15px;
}
.info-list b{display:block;color:var(--ink);font-size:14px;font-weight:600;margin-bottom:2px}
.map-box{
  margin-top:20px;height:170px;border-radius:var(--r-img);border:1px dashed var(--line);
  background:var(--surface-2);display:grid;place-items:center;gap:8px;color:var(--ink-3);font-size:13px;text-align:center;
}
.map-box i{font-size:22px;color:var(--primary);opacity:.7}

/* ---------- footer ---------- */
.site-footer{
  position:relative;background:var(--surface-2);border-top:1px solid var(--line);
  padding:clamp(44px,6vw,68px) 0 0;overflow:hidden;
}
.site-footer::after{
  content:"";position:absolute;right:-60px;top:-40px;width:320px;height:320px;pointer-events:none;opacity:.5;
  background-image:radial-gradient(rgba(43,58,143,.10) 1px,transparent 1px);background-size:20px 20px;
}
.footer-grid{
  position:relative;z-index:1;display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:clamp(22px,3vw,40px);
}
.footer-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:var(--ink)}
.footer-desc{margin-top:14px;font-size:14px;color:var(--ink-2);line-height:1.8;max-width:30em}
.footer-col h4{font-size:14px;font-weight:600;color:var(--ink);margin-bottom:14px}
.footer-col ul{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--ink-2)}
.footer-col a:hover{color:var(--primary)}
.footer-contact li{font-size:14px;color:var(--ink-2);line-height:1.7}
.footer-bottom{
  position:relative;z-index:1;margin-top:clamp(32px,4vw,48px);padding:18px 0;
  border-top:1px solid var(--line);display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-3);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .hero-grid{grid-template-columns:minmax(0,1fr) minmax(0,44%)}
}
@media (max-width:991px){
  .nav-chips{position:fixed;top:60px;left:0;right:0;bottom:0;background:var(--surface);
    flex-direction:column;align-items:stretch;gap:8px;padding:18px;overflow-y:auto;
    transform:translateX(100%);transition:transform .26s ease;z-index:70;flex:0 0 auto}
  .nav-chips.open{transform:translateX(0)}
  .nav-chips .chip{width:100%;justify-content:flex-start;padding:14px 16px;font-size:15px;border-radius:12px}
  .nav-chips .chip.active{border-left:3px solid var(--primary)}
  .nav-toggle{display:flex}
  .nav-wrap{height:60px}
  .nav-actions .btn-primary{display:none}
  .hero-grid{grid-template-columns:minmax(0,1fr)}
  .hero-figure{order:2}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat:nth-child(3){border-left:0}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid var(--line)}
  .check-wrap{grid-template-columns:minmax(0,1fr)}
  .check-list{grid-template-columns:minmax(0,1fr)}
  .cta-grid{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:767px){
  .hero-sub{font-size:16px}
  .timeline::before{left:17px}
  .tl-item{grid-template-columns:36px minmax(0,1fr);gap:14px}
  .tl-dot{width:36px;height:36px;font-size:13px}
  .form-row{grid-template-columns:minmax(0,1fr)}
}
@media (max-width:519px){
  :root{--sec:48px}
  .section{padding:var(--sec) 0}
  .hero h1{font-size:clamp(26px,7vw,32px)}
  .brand-text{font-size:15px}
  .chip{font-size:13px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat{padding:16px 14px}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .footer-bottom{flex-direction:column}
  .hero-actions .btn{width:100%}
}