/* roulang page: index */
:root{
  --brand-600:#1D5FD0;
  --brand-500:#2F7BE5;
  --brand-50:#EEF4FE;
  --brand-100:#DCE8FB;
  --brand-900:#0B3A87;
  --accent-500:#F59E0B;
  --accent-50:#FFF7E8;
  --ink-900:#0F172A;
  --ink-700:#334155;
  --ink-500:#64748B;
  --mist-50:#F7F9FC;
  --line:#E2E8F0;
  --radius-btn:12px;
  --radius-card:20px;
  --radius-block:24px;
  --shadow-soft:0 1px 2px rgba(15,23,42,.04), 0 8px 24px rgba(29,95,208,.08);
  --shadow-lift:0 12px 32px rgba(29,95,208,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink-700);
  background:var(--mist-50);
  -webkit-font-smoothing:antialiased;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{color:var(--ink-900);margin:0;letter-spacing:-0.01em;line-height:1.3;font-weight:700}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand-500);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:640px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}
.section{padding:56px 0}
@media (min-width:1024px){.section{padding:92px 0}}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{font-size:26px;margin-bottom:12px}
@media (min-width:1024px){.section-head h2{font-size:34px}}
.section-head p{font-size:16px;color:var(--ink-500)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.06em;font-weight:600;
  color:var(--brand-600);background:var(--brand-50);
  border:1px solid var(--brand-100);border-radius:999px;
  padding:6px 14px;margin-bottom:18px;
}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;font-weight:600;border-radius:999px;
  padding:4px 12px;line-height:1.6;
}
.badge-cat{background:var(--brand-50);color:var(--brand-600);border:1px solid var(--brand-100)}
.badge-time{background:var(--mist-50);color:var(--ink-500);border:1px solid var(--line)}

/* 导航 */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:60;padding:0 16px;display:flex;justify-content:center;pointer-events:none}
.nav-shell{
  pointer-events:auto;width:min(1200px,100%);
  display:flex;align-items:center;gap:14px;
  background:rgba(255,255,255,.86);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border:1px solid var(--line);border-radius:999px;
  padding:10px 14px;box-shadow:var(--shadow-soft);
  transition:padding .25s ease,box-shadow .25s ease;
}
.site-header.shrink .nav-shell{padding:7px 12px;box-shadow:var(--shadow-lift)}
.brand{display:flex;align-items:center;gap:10px;padding-left:4px;flex-shrink:0}
.brand-mark{
  width:38px;height:38px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand-500),var(--brand-600));
  color:#fff;display:grid;place-items:center;font-weight:700;font-size:13.5px;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-text strong{font-size:15px;color:var(--ink-900);font-weight:700;white-space:nowrap}
.brand-text em{font-size:11px;color:var(--ink-500);font-style:normal;letter-spacing:.04em;white-space:nowrap}
.nav-links{display:none}
@media (min-width:1024px){
  .nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
}
.nav-links a{
  padding:9px 15px;border-radius:999px;font-size:14.5px;color:var(--ink-700);
  transition:background .2s ease,color .2s ease;white-space:nowrap;
}
.nav-links a:hover{background:var(--brand-50);color:var(--brand-600)}
.nav-links a.active{background:var(--brand-50);color:var(--brand-600);font-weight:600}
.nav-actions{display:flex;align-items:center;gap:10px;margin-left:auto}
@media (min-width:1024px){.nav-actions{margin-left:0}}
.nav-phone{
  display:none;align-items:center;gap:6px;font-size:14px;font-weight:600;
  color:var(--ink-900);padding:8px 12px;border-radius:999px;
  border:1px solid var(--line);background:#fff;transition:.2s ease;
}
.nav-phone:hover{border-color:var(--brand-100);background:var(--brand-50);color:var(--brand-600)}
@media (min-width:1280px){.nav-phone{display:inline-flex}}
.nav-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:40px;height:40px;border-radius:12px;border:1px solid var(--line);background:#fff;color:var(--ink-900);
}
@media (min-width:1024px){.nav-toggle{display:none}}
.nav-toggle svg{width:18px;height:18px}
.mobile-panel{
  display:none;position:absolute;top:76px;left:16px;right:16px;
  background:#fff;border:1px solid var(--line);border-radius:22px;
  box-shadow:var(--shadow-lift);padding:14px;pointer-events:auto;
}
.mobile-panel.open{display:block}
.mobile-panel a.m-item{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 14px;border-radius:12px;font-size:15.5px;color:var(--ink-700);
}
.mobile-panel a.m-item:hover,.mobile-panel a.m-item.active{background:var(--brand-50);color:var(--brand-600);font-weight:600}
.mobile-panel .m-foot{margin-top:12px;display:flex;flex-direction:column;gap:10px}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  padding:12px 22px;transition:transform .2s ease,box-shadow .2s ease,background .2s ease,color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.btn svg{width:16px;height:16px}
.btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-soft)}
.btn-primary:hover{background:var(--brand-500);transform:translateY(-2px);box-shadow:var(--shadow-lift)}
.btn-primary:active{background:var(--brand-600);transform:translateY(0);box-shadow:var(--shadow-soft)}
.btn-ghost{background:#fff;color:var(--brand-600);border:1px solid var(--brand-100)}
.btn-ghost:hover{background:var(--brand-50);transform:translateY(-2px);box-shadow:var(--shadow-soft)}
.btn-ghost:active{transform:translateY(0)}
.btn-lg{padding:14px 26px;font-size:15.5px}
.btn-block{width:100%}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14.5px;font-weight:600;color:var(--brand-600);
}
.link-arrow svg{width:16px;height:16px;transition:transform .22s ease}
.link-arrow:hover svg{transform:translateX(4px)}

/* Hero */
.hero{position:relative;padding:128px 0 56px;overflow:hidden;background:linear-gradient(180deg,#F1F6FF 0%,#F7F9FC 100%)}
.hero-bg{position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.16;pointer-events:none}
.hero::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,rgba(255,255,255,.72) 0%,rgba(247,249,252,.96) 100%);pointer-events:none}
.hero .container{position:relative;z-index:2}
.hero-grid{display:grid;gap:48px;align-items:center}
@media (min-width:1024px){
  .hero-grid{grid-template-columns:1.05fr .95fr;gap:56px}
  .hero{padding:140px 0 96px;min-height:72vh}
}
.hero h1{font-size:31px;line-height:1.22;margin-bottom:16px}
@media (min-width:640px){.hero h1{font-size:38px}}
@media (min-width:1024px){.hero h1{font-size:48px;line-height:1.15}}
.hero-sub{font-size:16.5px;color:var(--ink-700);max-width:560px;margin-bottom:26px}
@media (min-width:1024px){.hero-sub{font-size:17.5px}}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px}
.trust-strip{display:grid;gap:12px}
@media (min-width:640px){.trust-strip{grid-template-columns:repeat(3,1fr)}}
.trust-strip li{
  display:flex;align-items:center;gap:9px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:11px 14px;font-size:13.5px;color:var(--ink-700);box-shadow:var(--shadow-soft);
}
.trust-strip li svg{width:18px;height:18px;color:var(--brand-600);flex-shrink:0}
.hero-visual{position:relative}
.hero-main{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--radius-block);box-shadow:var(--shadow-lift);
}
.hero-float{
  position:absolute;right:-8px;bottom:-30px;width:46%;
  border-radius:18px;overflow:hidden;border:6px solid #fff;box-shadow:var(--shadow-soft);
}
.hero-float img{width:100%;aspect-ratio:4/3;object-fit:cover}

/* 痛点 */
.pain-grid{display:grid;gap:20px}
@media (min-width:768px){.pain-grid{grid-template-columns:repeat(2,1fr)}}
.pain-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 26px 26px 30px;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.pain-card::before{
  content:'';position:absolute;left:0;top:26px;bottom:26px;width:3px;
  border-radius:0 4px 4px 0;background:var(--accent-500);
}
.pain-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-soft);border-color:var(--brand-100)}
.pain-num{
  font-size:30px;font-weight:700;color:var(--brand-100);
  font-variant-numeric:tabular-nums;line-height:1;letter-spacing:.02em;
}
.pain-card h3{font-size:18.5px;margin:12px 0 8px}
.pain-card p{font-size:15px;color:var(--ink-500)}
.pain-q{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:var(--accent-50);color:var(--accent-500);font-weight:700;font-size:17px;
}

/* 方案 */
.solution-grid{display:grid;gap:22px}
@media (min-width:1024px){
  .solution-grid{grid-template-columns:7fr 5fr;align-items:start}
  .solution-side{display:grid;gap:22px}
}
.solution-main{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-block);
  overflow:hidden;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.solution-main:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:var(--brand-100)}
.solution-main img{width:100%;aspect-ratio:16/9;object-fit:cover}
.solution-main .body{padding:28px}
@media (min-width:1024px){.solution-main .body{padding:32px}}
.solution-main h3{font-size:22px;margin-bottom:12px}
.solution-main .body > p{font-size:15.5px;color:var(--ink-500);margin-bottom:18px}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:15px;color:var(--ink-700);padding:7px 0;
}
.check-list li svg{width:18px;height:18px;color:var(--brand-600);flex-shrink:0;margin-top:5px}
.solution-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.solution-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-soft);border-color:var(--brand-100)}
.solution-card .icon-box{
  width:44px;height:44px;border-radius:13px;display:grid;place-items:center;
  background:var(--brand-50);color:var(--brand-600);margin-bottom:16px;
}
.solution-card .icon-box svg{width:21px;height:21px}
.solution-card h3{font-size:19px;margin-bottom:10px}
.solution-card p{font-size:14.8px;color:var(--ink-500);margin-bottom:14px}

/* 数据带 */
.stat-band{
  background:rgba(29,95,208,.06);border:1px solid var(--brand-100);
  border-radius:var(--radius-block);overflow:hidden;
  display:grid;grid-template-columns:repeat(2,1fr);
}
@media (min-width:768px){.stat-band{grid-template-columns:repeat(4,1fr)}}
.stat{
  padding:26px 18px;text-align:center;
  border-right:1px solid rgba(29,95,208,.12);border-bottom:1px solid rgba(29,95,208,.12);
}
.stat:nth-child(2n){border-right:0}
.stat:nth-child(n+3){border-bottom:0}
@media (min-width:768px){
  .stat{border-bottom:0;border-right:1px solid rgba(29,95,208,.12)}
  .stat:nth-child(2n){border-right:1px solid rgba(29,95,208,.12)}
  .stat:last-child{border-right:0}
}
.stat-num{
  display:inline-block;font-size:40px;font-weight:700;color:var(--brand-600);
  line-height:1.1;font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
@media (min-width:1024px){.stat-num{font-size:46px}}
.stat-unit{font-size:19px;font-weight:700;color:var(--brand-600);margin-left:2px}
.stat p{font-size:14px;color:var(--ink-500);margin-top:6px}

/* 资讯列表 */
.news-grid{display:grid;gap:24px}
@media (min-width:640px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.news-grid{grid-template-columns:repeat(3,1fr)}}
.news-card{
  position:relative;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;display:flex;flex-direction:column;
}
.news-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lift);border-color:var(--brand-100)}
.news-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.news-card .body{padding:20px;display:flex;flex-direction:column;flex:1}
.news-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:12px}
.news-card h3{
  font-size:17px;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card p{
  font-size:14.5px;color:var(--ink-500);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
  margin-bottom:16px;
}
.news-card .link-arrow{margin-top:auto}
.news-card .stretch{position:absolute;inset:0;z-index:1}
.empty-state{
  grid-column:1/-1;background:#fff;border:1px dashed var(--brand-100);
  border-radius:var(--radius-card);padding:56px 24px;text-align:center;
}
.empty-state .icon-box{
  width:56px;height:56px;border-radius:16px;margin:0 auto 16px;
  display:grid;place-items:center;background:var(--brand-50);color:var(--brand-600);
}
.empty-state .icon-box svg{width:26px;height:26px}
.empty-state h3{font-size:18px;margin-bottom:8px}
.empty-state p{font-size:14.5px;color:var(--ink-500);margin-bottom:18px}

/* 表单 */
.form-block{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-block);
  padding:28px;box-shadow:var(--shadow-soft);
}
@media (min-width:1024px){.form-block{padding:36px}}
.form-grid{display:grid;gap:18px}
@media (min-width:768px){
  .form-grid{grid-template-columns:1fr 1fr}
  .form-grid .span-2{grid-column:1/-1}
}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:14px;font-weight:600;color:var(--ink-900)}
.field input,.field select,.field textarea{
  width:100%;border:1px solid var(--line);border-radius:var(--radius-btn);
  background:#fff;padding:12px 14px;font-size:15px;color:var(--ink-900);
  transition:border-color .2s ease,box-shadow .2s ease;min-height:48px;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.75}
.field input::placeholder,.field textarea::placeholder{color:#9AA7B8}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(47,123,229,.18);
}
.check-row{display:flex;gap:10px;align-items:flex-start;font-size:13.5px;color:var(--ink-500)}
.check-row input{width:17px;height:17px;margin-top:4px;flex-shrink:0;accent-color:var(--brand-600)}
.privacy-note{font-size:13px;color:var(--ink-500);line-height:1.75;margin-top:14px}
.privacy-note a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px}
.form-hint{margin-top:14px;font-size:14px;color:var(--brand-600);display:none}
.form-hint.show{display:block}

/* FAQ */
.faq-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:6px 24px}
@media (min-width:1024px){.faq-card{padding:6px 32px}}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0 20px 16px;font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:'';position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:999px;
  background:var(--accent-500);opacity:0;transition:opacity .25s ease;
}
.faq-item[open] summary::before{opacity:1}
.faq-item summary .chev{
  width:22px;height:22px;flex-shrink:0;color:var(--brand-600);
  transition:transform .28s ease;
}
.faq-item[open] summary .chev{transform:rotate(180deg)}
.faq-item .answer{padding:0 0 22px 16px;font-size:15px;color:var(--ink-500);line-height:1.85}

/* CTA 带 */
.cta-band{
  background:linear-gradient(120deg,var(--brand-600) 0%,var(--brand-900) 100%);
  border-radius:var(--radius-block);padding:34px 28px;color:#fff;
  display:flex;flex-direction:column;gap:22px;align-items:flex-start;
  box-shadow:var(--shadow-lift);
}
@media (min-width:1024px){
  .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:44px 48px}
}
.cta-band h2{color:#fff;font-size:24px;margin-bottom:10px}
@media (min-width:1024px){.cta-band h2{font-size:30px}}
.cta-band p{color:rgba(255,255,255,.82);font-size:15.5px;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center}
.btn-light{background:#fff;color:var(--brand-600)}
.btn-light:hover{background:var(--brand-50);transform:translateY(-2px);box-shadow:0 12px 28px rgba(0,0,0,.18)}
.btn-outline-light{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.45)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);transform:translateY(-2px)}

/* 页脚 */
.site-footer{background:#0B3A87;color:rgba(255,255,255,.78);margin-top:56px;padding-top:56px}
@media (min-width:1024px){.site-footer{margin-top:96px;padding-top:72px}}
.footer-grid{display:grid;gap:36px;padding-bottom:44px}
@media (min-width:640px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr}}
.footer-brand .brand-mark{background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.24)}
.footer-brand .brand-text strong{color:#fff}
.footer-brand .brand-text em{color:rgba(255,255,255,.62)}
.footer-brand p{font-size:14px;color:rgba(255,255,255,.68);margin-top:16px;max-width:320px;line-height:1.8}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:14.2px;color:rgba(255,255,255,.72);transition:color .2s ease}
.footer-col a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.2px;color:rgba(255,255,255,.72);margin-bottom:12px}
.footer-contact svg{width:16px;height:16px;margin-top:5px;flex-shrink:0;color:rgba(255,255,255,.6)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.16);padding:22px 0 30px;
  display:flex;flex-direction:column;gap:16px;align-items:flex-start;
}
@media (min-width:1024px){.footer-bottom{flex-direction:row;align-items:center;justify-content:space-between}}
.footer-bottom p{font-size:13.2px;color:rgba(255,255,255,.58)}
.to-top{
  display:inline-flex;align-items:center;gap:8px;font-size:13.5px;font-weight:600;
  color:#fff;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);
  border-radius:999px;padding:9px 18px;transition:.22s ease;
}
.to-top:hover{background:rgba(255,255,255,.22);transform:translateY(-2px)}
.to-top svg{width:15px;height:15px}

/* 弹层 */
.modal{position:fixed;inset:0;z-index:120;display:none;align-items:center;justify-content:center;padding:20px}
.modal.open{display:flex}
.modal-mask{position:absolute;inset:0;background:rgba(15,23,42,.5);animation:fadeIn .22s ease}
.modal-panel{
  position:relative;width:100%;max-width:560px;background:#fff;border-radius:24px;
  box-shadow:var(--shadow-lift);padding:26px;max-height:90vh;overflow:auto;
  animation:panelIn .26s ease;
}
@media (min-width:640px){.modal-panel{padding:32px}}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
@keyframes panelIn{from{opacity:0;transform:translateY(14px) scale(.98)}to{opacity:1;transform:none}}
.modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:8px}
.modal-head h3{font-size:21px}
.modal-head p{font-size:14px;color:var(--ink-500);margin-top:6px}
.modal-close{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);background:#fff;color:var(--ink-500);flex-shrink:0;transition:.2s ease;
}
.modal-close:hover{background:var(--mist-50);color:var(--ink-900)}
.modal-close svg{width:16px;height:16px}
.modal form{margin-top:20px;display:grid;gap:16px}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root{
    --brand-600:#1D5FD0;
    --brand-500:#2F7BE5;
    --brand-50:#EEF4FE;
    --brand-100:#DCE8FB;
    --brand-900:#0B3A87;
    --accent-500:#F59E0B;
    --accent-50:#FFF7E8;
    --ink-900:#0F172A;
    --ink-700:#334155;
    --ink-500:#64748B;
    --mist-50:#F7F9FC;
    --line:#E2E8F0;
    --radius-card:20px;
    --shadow-soft:0 1px 2px rgba(15,23,42,.04), 0 8px 24px rgba(29,95,208,.08);
    --shadow-lift:0 12px 32px rgba(29,95,208,.14);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    background:var(--mist-50);
    color:var(--ink-700);
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
    text-rendering:optimizeLegibility;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input,select,textarea{font:inherit;color:inherit;}
  h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-.01em;line-height:1.25;}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;border-radius:6px;}
  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}
  ::-webkit-scrollbar{width:10px;height:10px;}
  ::-webkit-scrollbar-track{background:#EDF1F7;}
  ::-webkit-scrollbar-thumb{background:#C3D2E8;border-radius:999px;border:2px solid #EDF1F7;}
  ::-webkit-scrollbar-thumb:hover{background:#A9BFDF;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

  /* ============ 悬浮胶囊导航 ============ */
  .site-header{position:fixed;top:16px;left:0;right:0;z-index:60;display:flex;justify-content:center;pointer-events:none;}
  .nav-shell{
    pointer-events:auto;
    width:min(1200px, calc(100% - 32px));
    display:flex;align-items:center;gap:18px;
    padding:10px 14px 10px 18px;
    border-radius:999px;
    background:rgba(255,255,255,.86);
    -webkit-backdrop-filter:blur(10px);
    backdrop-filter:blur(10px);
    border:1px solid var(--line);
    box-shadow:var(--shadow-soft);
    transition:padding .25s ease, box-shadow .25s ease, background .25s ease, width .25s ease;
  }
  .site-header.is-scrolled .nav-shell{
    padding:7px 12px 7px 16px;
    background:rgba(255,255,255,.95);
    box-shadow:var(--shadow-lift);
  }
  .brand{display:flex;align-items:center;gap:10px;flex:none;}
  .brand-mark{
    display:grid;place-items:center;width:38px;height:38px;border-radius:12px;
    background:linear-gradient(135deg,var(--brand-900),var(--brand-500));
    color:#fff;font-size:14px;font-weight:700;letter-spacing:.02em;
    box-shadow:0 6px 16px rgba(29,95,208,.28);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.16;}
  .brand-text strong{font-size:15px;color:var(--ink-900);font-weight:700;letter-spacing:-.01em;}
  .brand-text em{font-style:normal;font-size:11px;color:var(--ink-500);letter-spacing:.06em;}
  .nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
  .nav-links a{
    display:inline-block;padding:9px 14px;border-radius:999px;font-size:14.5px;color:var(--ink-700);
    transition:background .18s ease,color .18s ease;
  }
  .nav-links a:hover{background:var(--brand-50);color:var(--brand-600);}
  .nav-links a.active{background:var(--brand-50);color:var(--brand-600);font-weight:600;}
  .nav-actions{display:flex;align-items:center;gap:10px;flex:none;}
  .nav-phone{
    display:inline-flex;align-items:center;gap:6px;font-size:13.5px;color:var(--ink-700);
    padding:8px 12px;border-radius:999px;border:1px solid var(--line);background:#fff;
    transition:border-color .18s ease,color .18s ease,background .18s ease;white-space:nowrap;
  }
  .nav-phone:hover{border-color:var(--brand-100);color:var(--brand-600);background:var(--brand-50);}
  .nav-phone svg{width:15px;height:15px;flex:none;}
  .nav-toggle{
    display:none;width:42px;height:42px;border-radius:999px;border:1px solid var(--line);background:#fff;
    align-items:center;justify-content:center;cursor:pointer;transition:background .18s ease,border-color .18s ease;
  }
  .nav-toggle:hover{background:var(--brand-50);border-color:var(--brand-100);}
  .nav-toggle span{display:block;width:16px;height:2px;background:var(--ink-900);border-radius:2px;position:relative;}
  .nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:2px;background:var(--ink-900);border-radius:2px;transition:transform .22s ease,top .22s ease;}
  .nav-toggle span::before{top:-5px;}
  .nav-toggle span::after{top:5px;}
  .nav-toggle[aria-expanded="true"] span{background:transparent;}
  .nav-toggle[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
  .nav-toggle[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}
  .mobile-panel{
    pointer-events:auto;
    position:absolute;top:74px;left:50%;transform:translateX(-50%) translateY(-8px);
    width:min(1200px, calc(100% - 32px));
    background:#fff;border:1px solid var(--line);border-radius:24px;box-shadow:var(--shadow-lift);
    padding:14px;display:none;opacity:0;transition:opacity .2s ease, transform .2s ease;
  }
  .mobile-panel.is-open{display:block;opacity:1;transform:translateX(-50%) translateY(0);}
  .mobile-panel a{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:0 14px;border-radius:14px;font-size:15px;color:var(--ink-700);}
  .mobile-panel a:hover{background:var(--brand-50);color:var(--brand-600);}
  .mobile-panel a.active{background:var(--brand-50);color:var(--brand-600);font-weight:600;}
  .mobile-panel .mp-cta{margin-top:8px;padding-top:12px;border-top:1px solid var(--line);}
  .mobile-panel .mp-cta .btn{width:100%;}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;border-radius:12px;border:1px solid transparent;
    font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
    transition:transform .18s ease, box-shadow .18s ease, background .18s ease, color .18s ease, border-color .18s ease;
  }
  .btn svg{width:17px;height:17px;flex:none;}
  .btn-primary{background:var(--brand-600);color:#fff;box-shadow:0 6px 16px rgba(29,95,208,.22);}
  .btn-primary:hover{background:var(--brand-500);transform:translateY(-2px);box-shadow:var(--shadow-lift);}
  .btn-primary:active{background:var(--brand-600);transform:translateY(0);box-shadow:0 4px 12px rgba(29,95,208,.2);}
  .btn-ghost{background:#fff;border-color:var(--brand-100);color:var(--brand-600);}
  .btn-ghost:hover{background:var(--brand-50);transform:translateY(-2px);box-shadow:var(--shadow-soft);}
  .btn-ghost:active{transform:translateY(0);}
  .btn-accent{background:var(--accent-500);color:#3A2405;box-shadow:0 6px 16px rgba(245,158,11,.26);}
  .btn-accent:hover{background:#E3900A;transform:translateY(-2px);box-shadow:0 12px 32px rgba(245,158,11,.28);}
  .btn-accent:active{transform:translateY(0);}
  .btn-sm{padding:9px 16px;font-size:14px;border-radius:10px;}
  .btn-white{background:#fff;color:var(--brand-900);}
  .btn-white:hover{background:var(--brand-50);transform:translateY(-2px);box-shadow:var(--shadow-lift);}
  .btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff;}
  .btn-outline-light:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);}

  .link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--brand-600);font-weight:600;font-size:14.5px;transition:color .18s ease;}
  .link-arrow svg{width:15px;height:15px;transition:transform .18s ease;}
  .link-arrow:hover{color:var(--brand-900);}
  .link-arrow:hover svg{transform:translateX(4px);}

  /* ============ 页面横幅 ============ */
  .page-banner{position:relative;overflow:hidden;background:var(--brand-900);padding-top:132px;}
  .page-banner .bg-img{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;opacity:.5;}
  .page-banner .veil{position:absolute;inset:0;background:linear-gradient(120deg,rgba(11,58,135,.95) 0%,rgba(29,95,208,.78) 60%,rgba(47,123,229,.7) 100%);}
  .page-banner .inner{position:relative;z-index:2;padding-bottom:52px;}
  .breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(220,232,251,.86);margin-bottom:20px;}
  .breadcrumb a{color:rgba(255,255,255,.9);transition:color .18s ease;}
  .breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
  .breadcrumb span.sep{opacity:.6;}
  .breadcrumb span.current{color:rgba(220,232,251,.72);}
  .banner-h1{font-size:46px;line-height:1.15;color:#fff;font-weight:700;letter-spacing:-.01em;}
  .banner-lead{margin-top:16px;max-width:760px;font-size:17px;line-height:1.85;color:rgba(233,240,252,.94);}
  .banner-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
  .banner-tags .chip{
    display:inline-flex;align-items:center;gap:7px;padding:7px 14px;border-radius:999px;
    background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);
    color:#fff;font-size:13px;
  }
  .banner-tags .chip i{width:6px;height:6px;border-radius:999px;background:var(--accent-500);display:block;}

  /* ============ 板块通用 ============ */
  .section{padding:88px 0 0;}
  .section-tight{padding:64px 0 0;}
  .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand-600);font-weight:600;letter-spacing:.04em;margin-bottom:12px;}
  .eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--accent-500);}
  .h2{font-size:34px;}
  .h3{font-size:23px;}
  .sub{margin-top:12px;font-size:16px;color:var(--ink-500);max-width:720px;}

  /* ============ 左右分栏 ============ */
  .layout{display:grid;grid-template-columns:minmax(280px,352px) 1fr;gap:32px;align-items:start;}
  .side{position:sticky;top:108px;display:flex;flex-direction:column;gap:20px;}
  .side-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-soft);}
  .side-card h3{font-size:21px;margin-bottom:12px;}
  .side-card p{font-size:15px;color:var(--ink-700);}
  .check-list{margin-top:20px;display:flex;flex-direction:column;gap:14px;}
  .check-list li{display:flex;gap:10px;font-size:14.5px;color:var(--ink-700);line-height:1.7;}
  .check-list li svg{width:18px;height:18px;flex:none;margin-top:4px;color:var(--brand-600);}
  .side-figure{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:#fff;box-shadow:var(--shadow-soft);}
  .side-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
  .side-figure figcaption{padding:14px 18px;font-size:13px;color:var(--ink-500);border-top:1px solid var(--line);}

  .feature-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
  .feature-card{
    position:relative;background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:26px;display:flex;flex-direction:column;gap:12px;
    transition:transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  }
  .feature-card:hover{transform:translateY(-4px);border-color:var(--brand-100);box-shadow:var(--shadow-lift);}
  .feature-card .fc-icon{
    width:46px;height:46px;border-radius:14px;display:grid;place-items:center;
    background:var(--brand-50);color:var(--brand-600);
  }
  .feature-card .fc-icon svg{width:22px;height:22px;}
  .feature-card h3{font-size:19px;}
  .feature-card p{font-size:14.5px;color:var(--ink-700);line-height:1.8;}
  .feature-card .fc-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:2px;}
  .tag-badge{display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;font-size:12.5px;background:var(--brand-50);color:var(--brand-600);font-weight:600;}
  .time-badge{display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;font-size:12.5px;background:var(--mist-50);color:var(--ink-500);border:1px solid var(--line);}
  .feature-card .fc-foot{margin-top:auto;padding-top:6px;}

  /* ============ 模块覆盖标签墙 ============ */
  .coverage{background:#fff;border:1px solid var(--line);border-radius:24px;padding:36px;box-shadow:var(--shadow-soft);}
  .chip-wall{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;}
  .chip-wall .chip{
    display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;
    background:var(--mist-50);border:1px solid var(--line);font-size:14px;color:var(--ink-700);
    transition:border-color .18s ease, background .18s ease, color .18s ease, transform .18s ease;
  }
  .chip-wall .chip:hover{border-color:var(--brand-100);background:var(--brand-50);color:var(--brand-600);transform:translateY(-2px);}
  .chip-wall .chip svg{width:15px;height:15px;color:var(--brand-600);}

  /* ============ FAQ ============ */
  .faq{background:#fff;border:1px solid var(--line);border-radius:24px;overflow:hidden;box-shadow:var(--shadow-soft);}
  .faq details{border-bottom:1px solid var(--line);}
  .faq details:last-child{border-bottom:0;}
  .faq summary{
    position:relative;display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:22px 26px 22px 32px;cursor:pointer;font-size:18px;font-weight:600;color:var(--ink-900);
    list-style:none;transition:background .18s ease;
  }
  .faq summary::-webkit-details-marker{display:none;}
  .faq summary:hover{background:var(--mist-50);}
  .faq summary::before{content:"";position:absolute;left:0;top:16px;bottom:16px;width:4px;border-radius:0 4px 4px 0;background:transparent;transition:background .2s ease;}
  .faq details[open] summary::before{background:var(--accent-500);}
  .faq summary .chev{width:20px;height:20px;flex:none;color:var(--ink-500);transition:transform .25s ease;}
  .faq details[open] summary .chev{transform:rotate(180deg);color:var(--brand-600);}
  .faq .answer{padding:0 32px 24px;font-size:15px;line-height:1.85;color:var(--ink-700);}

  /* ============ CTA 带 ============ */
  .cta-wrap{padding:88px 0 0;}
  .cta-band{
    position:relative;overflow:hidden;border-radius:24px;padding:44px;
    background:linear-gradient(120deg,#0B3A87 0%,#1D5FD0 58%,#2F7BE5 100%);
    display:flex;align-items:center;justify-content:space-between;gap:32px;
    box-shadow:var(--shadow-lift);
  }
  .cta-band::after{
    content:"";position:absolute;right:-70px;top:-70px;width:260px;height:260px;border-radius:999px;
    background:radial-gradient(circle,rgba(245,158,11,.35),transparent 65%);
  }
  .cta-band h2{color:#fff;font-size:30px;position:relative;z-index:2;}
  .cta-band p{margin-top:10px;color:rgba(233,240,252,.9);font-size:15.5px;max-width:620px;position:relative;z-index:2;}
  .cta-actions{display:flex;flex-wrap:wrap;gap:12px;position:relative;z-index:2;}
  .privacy-note{margin-top:16px;font-size:13px;color:var(--ink-500);line-height:1.7;}
  .privacy-note a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--brand-900);color:#DCE8FB;margin-top:88px;padding-top:64px;}
  .footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
  .footer-brand .brand{margin-bottom:18px;}
  .footer-brand .brand-mark{background:rgba(255,255,255,.14);box-shadow:none;}
  .footer-brand .brand-text strong{color:#fff;}
  .footer-brand .brand-text em{color:rgba(220,232,251,.7);}
  .footer-brand p{font-size:14px;line-height:1.85;color:rgba(220,232,251,.78);max-width:340px;}
  .footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
  .footer-col ul{display:flex;flex-direction:column;gap:11px;}
  .footer-col a{font-size:14px;color:rgba(220,232,251,.82);transition:color .18s ease;}
  .footer-col a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
  .footer-contact li{display:flex;align-items:center;gap:9px;font-size:14px;color:rgba(220,232,251,.82);}
  .footer-contact svg{width:17px;height:17px;flex:none;color:var(--accent-500);}
  .footer-bottom{
    display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
    margin-top:48px;padding:22px 0;border-top:1px solid rgba(255,255,255,.16);
    font-size:13.5px;color:rgba(220,232,251,.72);
  }
  .to-top{
    display:inline-flex;align-items:center;gap:8px;padding:9px 16px;border-radius:999px;
    border:1px solid rgba(255,255,255,.28);color:#fff;font-size:13.5px;
    transition:background .18s ease, transform .18s ease;
  }
  .to-top:hover{background:rgba(255,255,255,.14);transform:translateY(-2px);}
  .to-top svg{width:15px;height:15px;}

  /* ============ 弹层 ============ */
  .modal{position:fixed;inset:0;z-index:90;display:none;}
  .modal.is-open{display:block;}
  .modal-mask{position:absolute;inset:0;background:rgba(15,23,42,.5);animation:fadeIn .2s ease;}
  .modal-panel{
    position:relative;z-index:2;width:calc(100% - 32px);max-width:560px;margin:6vh auto;
    background:#fff;border-radius:24px;box-shadow:var(--shadow-lift);padding:30px;
    max-height:88vh;overflow-y:auto;animation:popIn .24s ease;
  }
  @keyframes fadeIn{from{opacity:0}to{opacity:1}}
  @keyframes popIn{from{opacity:0;transform:translateY(14px) scale(.98)}to{opacity:1;transform:translateY(0) scale(1)}}
  .modal-head{display:flex;align-items:flex-start;justify-content:space-between;gap:16px;margin-bottom:20px;}
  .modal-head h3{font-size:22px;}
  .modal-head p{margin-top:8px;font-size:14px;color:var(--ink-500);}
  .modal-close{
    width:38px;height:38px;flex:none;border-radius:999px;border:1px solid var(--line);background:#fff;
    display:grid;place-items:center;cursor:pointer;transition:background .18s ease,border-color .18s ease;
  }
  .modal-close:hover{background:var(--brand-50);border-color:var(--brand-100);}
  .modal-close svg{width:16px;height:16px;color:var(--ink-700);}
  .form-stack{display:flex;flex-direction:column;gap:16px;}
  .field label{display:block;font-size:13.5px;font-weight:600;color:var(--ink-900);margin-bottom:7px;}
  .field input,.field select,.field textarea{
    width:100%;height:48px;padding:0 14px;border-radius:11px;border:1px solid var(--line);
    background:#fff;font-size:14.5px;color:var(--ink-900);transition:border-color .18s ease, box-shadow .18s ease;
  }
  .field textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.7;}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--brand-500);box-shadow:0 0 0 2px rgba(47,123,229,.35);
  }
  .field input.is-error,.field select.is-error{border-color:#DC2626;box-shadow:0 0 0 2px rgba(220,38,38,.16);}
  .field-hint{display:none;margin-top:6px;font-size:12.5px;color:#DC2626;}
  .field-hint.show{display:block;}
  .check-row{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--ink-700);line-height:1.7;}
  .check-row input{width:17px;height:17px;margin-top:4px;flex:none;accent-color:var(--brand-600);}
  .check-row a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;}
  .form-msg{display:none;margin-top:4px;padding:12px 14px;border-radius:12px;font-size:14px;}
  .form-msg.ok{display:block;background:var(--brand-50);color:var(--brand-900);border:1px solid var(--brand-100);}
  body.modal-open{overflow:hidden;}

  /* ============ 响应式 ============ */
  @media (max-width:1024px){
    .nav-links{display:none;}
    .nav-phone{display:none;}
    .nav-toggle{display:inline-flex;}
    .layout{grid-template-columns:1fr;}
    .side{position:static;}
    .banner-h1{font-size:38px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
    .cta-band{flex-direction:column;align-items:flex-start;}
  }
  @media (max-width:640px){
    .container{padding:0 20px;}
    .section{padding-top:56px;}
    .section-tight{padding-top:48px;}
    .cta-wrap{padding-top:56px;}
    .page-banner{padding-top:112px;}
    .banner-h1{font-size:32px;}
    .banner-lead{font-size:15.5px;}
    .h2{font-size:26px;}
    .h3{font-size:20px;}
    .feature-grid{grid-template-columns:1fr;}
    .coverage{padding:26px;}
    .footer-grid{grid-template-columns:1fr;}
    .footer-brand p{max-width:none;}
    .cta-band{padding:30px;border-radius:20px;}
    .cta-band h2{font-size:24px;}
    .faq summary{font-size:16.5px;padding:18px 20px 18px 26px;}
    .faq .answer{padding:0 26px 20px;}
    .side-card{padding:22px;}
    .modal-panel{padding:24px;margin:5vh auto;}
  }

/* roulang page: article */
:root{
    --brand-600:#1D5FD0;
    --brand-500:#2F7BE5;
    --brand-50:#EEF4FE;
    --brand-100:#DCE8FB;
    --brand-900:#0B3A87;
    --accent-500:#F59E0B;
    --accent-50:#FFF7E8;
    --ink-900:#0F172A;
    --ink-700:#334155;
    --ink-500:#64748B;
    --mist-50:#F7F9FC;
    --line:#E2E8F0;
    --white:#FFFFFF;
    --radius-card:20px;
    --radius-lg:24px;
    --shadow-soft:0 1px 2px rgba(15,23,42,.04), 0 8px 24px rgba(29,95,208,.08);
    --shadow-lift:0 12px 32px rgba(29,95,208,.14);
    --container:1200px;
  }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
  body{
    margin:0;
    background:var(--mist-50);
    color:var(--ink-700);
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    font-weight:400;
    -webkit-font-smoothing:antialiased;
    font-variant-numeric:tabular-nums;
  }
  img{ max-width:100%; display:block; }
  a{ color:inherit; }
  button{ font-family:inherit; }
  h1,h2,h3,h4{ letter-spacing:-0.01em; color:var(--ink-900); }
  :focus-visible{ outline:2px solid var(--brand-500); outline-offset:2px; border-radius:6px; }

  ::-webkit-scrollbar{ width:10px; height:10px; }
  ::-webkit-scrollbar-track{ background:var(--mist-50); }
  ::-webkit-scrollbar-thumb{ background:#CBD5E1; border-radius:8px; border:2px solid var(--mist-50); }
  ::-webkit-scrollbar-thumb:hover{ background:#94A3B8; }

  .container{
    width:100%;
    max-width:var(--container);
    margin:0 auto;
    padding:0 20px;
  }
  @media (min-width:640px){ .container{ padding:0 24px; } }
  @media (min-width:1024px){ .container{ padding:0 32px; } }

  /* ---------- 悬浮胶囊导航 ---------- */
  .nav-wrap{
    position:fixed;
    top:16px;
    left:50%;
    transform:translateX(-50%);
    width:min(1200px, calc(100% - 32px));
    z-index:70;
  }
  .nav-shell{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    padding:10px 14px 10px 18px;
    border-radius:999px;
    background:rgba(255,255,255,.82);
    -webkit-backdrop-filter:blur(10px);
    backdrop-filter:blur(10px);
    border:1px solid var(--line);
    box-shadow:var(--shadow-soft);
    transition:padding .28s ease, box-shadow .28s ease, background .28s ease;
  }
  .nav-wrap.scrolled .nav-shell{
    padding:6px 10px 6px 16px;
    box-shadow:var(--shadow-lift);
    background:rgba(255,255,255,.94);
  }
  .brand{ display:flex; align-items:center; gap:10px; text-decoration:none; }
  .brand-mark{
    width:38px; height:38px; flex:none;
    border-radius:12px;
    background:linear-gradient(135deg, var(--brand-500), var(--brand-600));
    color:#fff; display:grid; place-items:center;
    font-size:14px; font-weight:700; letter-spacing:.02em;
  }
  .brand-text{ display:flex; flex-direction:column; line-height:1.18; }
  .brand-text strong{ font-size:16px; font-weight:700; color:var(--ink-900); }
  .brand-text em{ font-style:normal; font-size:11px; color:var(--ink-500); letter-spacing:.04em; }

  .nav-links{ display:flex; align-items:center; gap:4px; }
  .nav-links a{
    display:inline-flex; align-items:center; height:38px; padding:0 14px;
    border-radius:999px; font-size:14px; color:var(--ink-700);
    text-decoration:none; transition:background .2s ease, color .2s ease;
    white-space:nowrap;
  }
  .nav-links a:hover{ background:var(--brand-50); color:var(--brand-600); }
  .nav-links a.active{ background:var(--brand-50); color:var(--brand-600); font-weight:600; }

  .nav-actions{ display:flex; align-items:center; gap:10px; }
  .nav-phone{
    display:inline-flex; align-items:center; gap:6px;
    font-size:14px; color:var(--ink-700); text-decoration:none;
    padding:0 6px; transition:color .2s ease;
  }
  .nav-phone:hover{ color:var(--brand-600); }
  .nav-phone svg{ width:16px; height:16px; }

  .nav-toggle{
    display:none; width:40px; height:40px; border-radius:12px;
    border:1px solid var(--line); background:#fff; color:var(--ink-700);
    cursor:pointer; place-items:center;
  }
  .nav-toggle svg{ width:20px; height:20px; }

  .nav-panel{
    position:fixed; top:84px; left:50%; transform:translateX(-50%);
    width:min(1200px, calc(100% - 32px));
    background:#fff; border:1px solid var(--line); border-radius:var(--radius-lg);
    box-shadow:var(--shadow-lift); padding:14px; display:none; z-index:65;
  }
  .nav-panel.open{ display:block; }
  .nav-panel a{
    display:flex; align-items:center; height:48px; padding:0 16px;
    border-radius:14px; color:var(--ink-700); text-decoration:none; font-size:15px;
  }
  .nav-panel a:hover,.nav-panel a.active{ background:var(--brand-50); color:var(--brand-600); }
  .nav-panel .panel-cta{ display:grid; gap:8px; margin-top:10px; padding-top:12px; border-top:1px solid var(--line); }
  .nav-panel .btn{ width:100%; }

  @media (max-width:1023px){
    .nav-links{ display:none; }
    .nav-toggle{ display:grid; }
    .nav-phone{ display:none; }
  }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    height:44px; padding:0 20px; border-radius:12px;
    font-size:15px; font-weight:600; text-decoration:none; cursor:pointer;
    border:1px solid transparent;
    transition:background .2s ease, color .2s ease, transform .2s ease, box-shadow .2s ease, border-color .2s ease;
  }
  .btn-primary{ background:var(--brand-600); color:#fff; box-shadow:var(--shadow-soft); }
  .btn-primary:hover{ background:var(--brand-500); transform:translateY(-2px); box-shadow:var(--shadow-lift); }
  .btn-primary:active{ background:var(--brand-600); transform:translateY(0); }
  .btn-ghost{ background:#fff; color:var(--brand-600); border-color:var(--brand-100); }
  .btn-ghost:hover{ background:var(--brand-50); transform:translateY(-2px); }
  .btn-white{ background:#fff; color:var(--brand-600); }
  .btn-white:hover{ background:var(--brand-50); transform:translateY(-2px); box-shadow:var(--shadow-lift); }
  .btn-accent{ background:var(--accent-500); color:#fff; }
  .btn-accent:hover{ background:#E28A06; transform:translateY(-2px); box-shadow:var(--shadow-lift); }
  .btn-sm{ height:38px; padding:0 16px; font-size:14px; }

  /* ---------- 面包屑 ---------- */
  .crumb-row{ padding-top:112px; }
  .crumb{
    display:flex; flex-wrap:wrap; align-items:center; gap:8px;
    font-size:14px; color:var(--ink-500);
  }
  .crumb a{ color:var(--ink-500); text-decoration:none; }
  .crumb a:hover{ color:var(--brand-600); }
  .crumb-sep{ color:#CBD5E1; }
  .crumb-cat{ color:var(--ink-700); }
  .crumb-current{
    color:#94A3B8; max-width:62ch; overflow:hidden;
    text-overflow:ellipsis; white-space:nowrap;
  }
  @media (max-width:640px){
    .crumb-current{ max-width:100%; white-space:normal; }
  }

  /* ---------- 文章头部 ---------- */
  .article-head{ padding:26px 0 22px; border-bottom:1px solid var(--line); margin-bottom:34px; }
  .head-badges{ display:flex; flex-wrap:wrap; align-items:center; gap:10px; margin-bottom:18px; }
  .badge{
    display:inline-flex; align-items:center; height:26px; padding:0 12px;
    border-radius:999px; font-size:12.5px; font-weight:600; white-space:nowrap;
  }
  .badge-brand{ background:var(--brand-50); color:var(--brand-600); }
  .badge-time{ background:var(--mist-50); color:var(--ink-500); font-weight:400; border:1px solid var(--line); }
  .article-head h1{
    margin:0 0 18px;
    font-size:30px; line-height:1.24; font-weight:700; color:var(--ink-900);
    letter-spacing:-0.015em;
  }
  .head-meta{
    display:flex; flex-wrap:wrap; align-items:center; gap:10px;
    font-size:13.5px; color:var(--ink-500);
  }
  .head-meta .dot{ width:4px; height:4px; border-radius:50%; background:#CBD5E1; }
  @media (min-width:768px){
    .article-head h1{ font-size:38px; line-height:1.2; }
  }
  @media (min-width:1024px){
    .article-head{ padding:34px 0 26px; }
    .article-head h1{ font-size:44px; }
  }

  /* ---------- 正文布局 ---------- */
  .article-layout{ display:grid; grid-template-columns:minmax(0,1fr); gap:36px; }
  .article-card{
    width:100%; max-width:860px; margin:0 auto;
    background:#fff; border:1px solid var(--line);
    border-radius:var(--radius-lg);
    padding:26px 20px;
    box-shadow:var(--shadow-soft);
  }
  @media (min-width:640px){ .article-card{ padding:36px 32px; } }
  @media (min-width:1024px){ .article-card{ padding:46px 50px; } }
  @media (min-width:1280px){
    .article-layout{ grid-template-columns:minmax(0,820px) 300px; gap:40px; align-items:start; }
    .article-card{ max-width:none; margin:0; }
  }

  /* ---------- 正文排版 ---------- */
  .article-body{ font-size:16px; line-height:1.9; color:var(--ink-700); word-break:break-word; }
  .article-body > *:first-child{ margin-top:0; }
  .article-body p{ margin:0 0 1.2em; }
  .article-body h2{
    position:relative; margin:2.5em 0 .8em; padding-left:14px;
    font-size:24px; line-height:1.34; font-weight:700; color:var(--ink-900);
  }
  .article-body h2::before{
    content:""; position:absolute; left:0; top:.18em; bottom:.18em;
    width:4px; border-radius:4px; background:var(--brand-600);
  }
  .article-body h3{ margin:1.6em 0 .6em; font-size:20px; font-weight:600; color:var(--ink-900); }
  .article-body h4{ margin:1.4em 0 .5em; font-size:17px; font-weight:600; color:var(--ink-900); }
  .article-body ul{ list-style:none; margin:0 0 1.2em; padding:0; }
  .article-body ul li{ position:relative; padding-left:22px; margin-bottom:.5em; }
  .article-body ul li::before{
    content:""; position:absolute; left:2px; top:.72em;
    width:8px; height:8px; border-radius:50%; background:var(--accent-500);
  }
  .article-body ol{ margin:0 0 1.2em; padding-left:1.3em; }
  .article-body ol li{ margin-bottom:.5em; padding-left:.2em; }
  .article-body blockquote{
    margin:1.6em 0; padding:16px 20px;
    background:var(--brand-50); border-left:4px solid var(--brand-600);
    border-radius:0 12px 12px 0; color:var(--ink-700);
  }
  .article-body blockquote p:last-child{ margin-bottom:0; }
  .article-body img{
    display:block; max-width:100%; height:auto; margin:1.6em auto;
    border-radius:16px; box-shadow:var(--shadow-soft);
  }
  .article-body figure{ margin:1.6em 0; }
  .article-body figcaption{ margin-top:8px; text-align:center; font-size:13.5px; color:var(--ink-500); }
  .article-body a{ color:var(--brand-600); text-decoration:underline; text-underline-offset:3px; }
  .article-body a:hover{ color:var(--brand-500); }
  .article-body strong{ color:var(--ink-900); font-weight:600; }
  .article-body hr{ margin:2.2em 0; border:none; border-top:1px solid var(--line); }
  .article-body table{
    width:100%; margin:1.6em 0; border-collapse:collapse; font-size:14.5px;
    display:block; overflow-x:auto; white-space:nowrap;
  }
  .article-body th{
    background:var(--brand-50); color:var(--ink-900); font-weight:600;
    text-align:left; padding:12px 14px; border:1px solid var(--line);
  }
  .article-body td{ padding:12px 14px; border:1px solid var(--line); }
  .article-body tbody tr:nth-child(even){ background:#FBFCFE; }
  .article-body code{
    background:var(--mist-50); border:1px solid var(--line);
    border-radius:6px; padding:1px 6px; font-size:14px;
  }
  @media (min-width:1024px){
    .article-body{ font-size:17px; }
    .article-body h2{ font-size:29px; }
    .article-body h3{ font-size:22px; }
  }

  .article-foot-link{
    margin-top:34px; padding-top:22px; border-top:1px solid var(--line);
    display:flex; flex-wrap:wrap; align-items:center; gap:10px;
    font-size:14px; color:var(--ink-500);
  }
  .arrow-link{
    display:inline-flex; align-items:center; gap:6px;
    font-size:14px; font-weight:600; color:var(--brand-600); text-decoration:none;
  }
  .arrow-link svg{ width:16px; height:16px; transition:transform .2s ease; }
  .arrow-link:hover svg{ transform:translateX(4px); }

  .empty-state{
    text-align:center; padding:64px 20px;
    background:#fff; border:1px dashed var(--line); border-radius:var(--radius-lg);
    max-width:860px; margin:0 auto;
  }
  .empty-state svg{ width:46px; height:46px; color:var(--brand-100); margin:0 auto 16px; }
  .empty-state h2{ font-size:20px; margin:0 0 8px; }
  .empty-state p{ font-size:15px; color:var(--ink-500); margin:0 0 22px; }

  /* ---------- 侧栏 ---------- */
  .article-side{ display:none; }
  @media (min-width:1280px){
    .article-side{ display:block; position:sticky; top:104px; }
  }
  .side-card{
    background:#fff; border:1px solid var(--line); border-radius:var(--radius-card);
    padding:20px; box-shadow:var(--shadow-soft); margin-bottom:20px;
  }
  .side-card h3{ margin:0 0 14px; font-size:16px; font-weight:600; }
  .side-list{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:2px; }
  .side-list a{
    display:flex; align-items:center; justify-content:space-between; gap:10px;
    padding:10px 12px; border-radius:12px; font-size:14px; color:var(--ink-700);
    text-decoration:none; transition:background .2s ease, color .2s ease;
  }
  .side-list a:hover{ background:var(--brand-50); color:var(--brand-600); }
  .side-list svg{ width:15px; height:15px; flex:none; opacity:.7; }
  .side-cta{
    background:linear-gradient(135deg, var(--brand-600), var(--brand-500));
    border:none; color:#fff;
  }
  .side-cta h3{ color:#fff; }
  .side-cta p{ margin:0 0 16px; font-size:14px; line-height:1.75; color:rgba(255,255,255,.88); }
  .side-cta .btn{ width:100%; }

  /* ---------- 通用板块 ---------- */
  .section{ padding:56px 0; }
  @media (min-width:1024px){ .section{ padding:88px 0; } }
  .sec-head{ margin-bottom:30px; max-width:66ch; }
  .sec-head h2{ margin:0 0 10px; font-size:24px; line-height:1.32; font-weight:700; }
  .sec-head p{ margin:0; font-size:15px; color:var(--ink-500); }
  @media (min-width:1024px){
    .sec-head{ margin-bottom:40px; }
    .sec-head h2{ font-size:32px; }
  }

  .read-card{
    display:flex; flex-direction:column; overflow:hidden;
    background:#fff; border:1px solid var(--line); border-radius:var(--radius-card);
    box-shadow:var(--shadow-soft);
    transition:transform .24s ease, box-shadow .24s ease, border-color .24s ease;
  }
  .read-card:hover{ transform:translateY(-4px); border-color:var(--brand-100); box-shadow:var(--shadow-lift); }
  .read-card img{ width:100%; aspect-ratio:16/9; object-fit:cover; }
  .read-card-body{ display:flex; flex-direction:column; gap:10px; flex:1; padding:20px 22px 24px; }
  .read-card h3{ margin:0; font-size:18px; font-weight:600; }
  .read-card p{ margin:0; font-size:14px; line-height:1.75; color:var(--ink-500); }
  .read-card .arrow-link{ margin-top:auto; padding-top:6px; }

  /* ---------- FAQ ---------- */
  .faq-card{
    background:#fff; border:1px solid var(--line); border-radius:var(--radius-card);
    padding:8px 22px; box-shadow:var(--shadow-soft);
  }
  .faq-item{ border-bottom:1px solid var(--line); }
  .faq-item:last-child{ border-bottom:none; }
  .faq-item summary{
    position:relative; list-style:none; cursor:pointer;
    display:flex; align-items:center; justify-content:space-between; gap:16px;
    padding:18px 0; font-size:17px; font-weight:600; color:var(--ink-900);
    transition:color .2s ease;
  }
  .faq-item summary::-webkit-details-marker{ display:none; }
  .faq-item summary svg{ width:18px; height:18px; flex:none; color:var(--ink-500); transition:transform .24s ease, color .24s ease; }
  .faq-item[open] summary{ color:var(--brand-600); }
  .faq-item[open] summary svg{ transform:rotate(180deg); color:var(--brand-600); }
  .faq-item[open] summary::before{
    content:""; position:absolute; left:-22px; top:16px; bottom:16px;
    width:3px; border-radius:3px; background:var(--brand-600);
  }
  .faq-item p{ margin:0; padding:0 0 20px; font-size:15px; line-height:1.85; color:var(--ink-700); max-width:78ch; }

  /* ---------- CTA 带 ---------- */
  .cta-band{
    background:var(--brand-900); color:#fff;
    padding:56px 0;
  }
  .cta-inner{ display:grid; gap:24px; align-items:center; }
  .cta-inner h2{ color:#fff; margin:0 0 10px; font-size:24px; line-height:1.34; font-weight:700; }
  .cta-inner p{ margin:0; font-size:15px; line-height:1.8; color:rgba(255,255,255,.82); max-width:56ch; }
  .cta-actions{ display:flex; flex-wrap:wrap; gap:12px; }
  @media (min-width:900px){
    .cta-band{ padding:72px 0; }
    .cta-inner{ grid-template-columns:1.4fr 1fr; gap:40px; }
    .cta-inner h2{ font-size:30px; }
    .cta-actions{ justify-content:flex-end; }
  }

  /* ---------- 弹层 ---------- */
  .modal{ position:fixed; inset:0; z-index:90; display:none; align-items:center; justify-content:center; padding:20px; }
  .modal.open{ display:flex; }
  .modal-mask{ position:absolute; inset:0; background:rgba(15,23,42,.5); }
  .modal-panel{
    position:relative; width:100%; max-width:560px; max-height:calc(100vh - 40px);
    overflow-y:auto; background:#fff; border-radius:var(--radius-lg);
    padding:28px 24px; box-shadow:var(--shadow-lift);
    animation:modalIn .24s ease both;
  }
  @keyframes modalIn{
    from{ opacity:0; transform:translateY(12px) scale(.98); }
    to{ opacity:1; transform:none; }
  }
  .modal-close{
    position:absolute; top:14px; right:14px; width:36px; height:36px;
    border-radius:10px; border:1px solid var(--line); background:#fff;
    color:var(--ink-500); font-size:20px; line-height:1; cursor:pointer;
    transition:background .2s ease, color .2s ease;
  }
  .modal-close:hover{ background:var(--mist-50); color:var(--ink-900); }
  .modal-panel h2{ margin:0 0 8px; font-size:22px; font-weight:700; }
  .modal-sub{ margin:0 0 20px; font-size:14px; line-height:1.7; color:var(--ink-500); }
  .lead-form{ display:flex; flex-direction:column; gap:16px; }
  .field label{ display:block; margin-bottom:8px; font-size:14px; font-weight:600; color:var(--ink-900); }
  .field input,.field select,.field textarea{
    width:100%; height:48px; padding:0 14px;
    border:1px solid var(--line); border-radius:12px;
    font-size:15px; font-family:inherit; color:var(--ink-900); background:#fff;
    transition:border-color .2s ease, box-shadow .2s ease;
  }
  .field textarea{ height:104px; padding:12px 14px; line-height:1.7; resize:vertical; }
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none; border-color:var(--brand-500);
    box-shadow:0 0 0 2px rgba(47,123,229,.32);
  }
  .check{ display:flex; gap:10px; align-items:flex-start; font-size:13px; line-height:1.7; color:var(--ink-500); }
  .check input{ width:16px; height:16px; margin-top:3px; flex:none; }
  .form-note{ margin:0; font-size:13px; line-height:1.7; color:var(--ink-500); }
  .form-note a{ color:var(--brand-600); }
  .form-result{
    display:none; margin:0; padding:12px 14px; border-radius:12px;
    background:var(--brand-50); border:1px solid var(--brand-100);
    font-size:14px; color:var(--brand-600);
  }
  .form-result.show{ display:block; }
  .lead-form .btn{ width:100%; }

  /* ---------- 页脚 ---------- */
  .site-footer{
    background:var(--brand-900); color:rgba(255,255,255,.78);
    padding:64px 0 24px; margin-top:88px;
  }
  .footer-grid{ display:grid; grid-template-columns:1fr; gap:32px; }
  @media (min-width:768px){ .footer-grid{ grid-template-columns:1.6fr 1fr 1fr 1.4fr; gap:32px; } }
  @media (min-width:1024px){ .footer-grid{ gap:40px; } }
  .footer-brand .brand-mark{ background:rgba(255,255,255,.14); }
  .footer-brand .brand-text strong{ color:#fff; }
  .footer-brand .brand-text em{ color:rgba(255,255,255,.6); }
  .footer-brand p{ margin:16px 0 0; font-size:14px; line-height:1.85; max-width:36ch; color:rgba(255,255,255,.72); }
  .footer-col h4{ margin:0 0 14px; font-size:15px; font-weight:600; color:#fff; }
  .footer-col ul{ list-style:none; margin:0; padding:0; display:flex; flex-direction:column; gap:10px; font-size:14px; }
  .footer-col a{ color:rgba(255,255,255,.78); text-decoration:none; transition:color .2s ease; }
  .footer-col a:hover{ color:#fff; }
  .footer-contact li{ display:flex; align-items:center; gap:8px; }
  .footer-contact svg{ width:18px; height:18px; flex:none; }
  .footer-bottom{
    margin-top:40px; padding-top:20px; border-top:1px solid rgba(255,255,255,.14);
    display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:16px;
    font-size:13px; color:rgba(255,255,255,.62);
  }
  .footer-bottom p{ margin:0; }
  .to-top{
    display:inline-flex; align-items:center; gap:6px;
    padding:8px 14px; border-radius:999px; border:1px solid rgba(255,255,255,.24);
    color:#fff; font-size:13px; text-decoration:none; transition:background .2s ease;
  }
  .to-top:hover{ background:rgba(255,255,255,.12); }
  .to-top svg{ width:16px; height:16px; }

  @media (prefers-reduced-motion:reduce){
    *{ animation-duration:.001ms !important; transition-duration:.001ms !important; }
    html{ scroll-behavior:auto; }
  }

/* roulang page: category3 */
:root{
  --brand-600:#1D5FD0;
  --brand-500:#2F7BE5;
  --brand-700:#174CA8;
  --brand-50:#EEF4FE;
  --brand-100:#DCE8FB;
  --brand-900:#0B3A87;
  --accent-500:#F59E0B;
  --accent-50:#FFF7E8;
  --ink-900:#0F172A;
  --ink-700:#334155;
  --ink-500:#64748B;
  --mist-50:#F7F9FC;
  --line:#E2E8F0;
  --white:#FFFFFF;
  --radius-card:20px;
  --radius-lg:24px;
  --radius-btn:12px;
  --shadow-soft:0 1px 2px rgba(15,23,42,.04), 0 8px 24px rgba(29,95,208,.08);
  --shadow-lift:0 12px 32px rgba(29,95,208,.14);
  --font-sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
  --nav-h:60px;
}
*,*::before,*::after{ box-sizing:border-box; }
html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; font-family:var(--font-sans); }
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  color:var(--ink-700);
  background:var(--mist-50);
  -webkit-font-smoothing:antialiased;
}
body.modal-open,body.menu-open{ overflow:hidden; }
img{ max-width:100%; display:block; }
a{ color:inherit; text-decoration:none; }
button{ font-family:inherit; font-size:inherit; cursor:pointer; border:0; background:none; }
input,select,textarea{ font-family:inherit; font-size:inherit; color:inherit; }
h1,h2,h3,h4{ margin:0; color:var(--ink-900); font-weight:700; letter-spacing:-.01em; line-height:1.28; }
p{ margin:0; }
ul{ margin:0; padding:0; list-style:none; }
:focus-visible{ outline:2px solid var(--brand-500); outline-offset:3px; border-radius:6px; }
::selection{ background:var(--brand-100); color:var(--ink-900); }
::-webkit-scrollbar{ width:10px; height:10px; }
::-webkit-scrollbar-track{ background:#EEF2F8; }
::-webkit-scrollbar-thumb{ background:#C6D3E6; border-radius:999px; border:2px solid #EEF2F8; }
::-webkit-scrollbar-thumb:hover{ background:#A9BEDC; }

.container{ width:100%; max-width:1200px; margin:0 auto; padding:0 20px; }
@media (min-width:640px){ .container{ padding:0 24px; } }
@media (min-width:1024px){ .container{ padding:0 32px; } }

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{ position:fixed; top:0; left:0; right:0; z-index:60; padding:14px 0 0; pointer-events:none; }
.nav-shell{
  pointer-events:auto;
  width:min(1200px, calc(100% - 32px));
  margin:0 auto;
  display:flex;
  align-items:center;
  gap:20px;
  height:var(--nav-h);
  padding:0 12px 0 18px;
  border-radius:999px;
  background:rgba(255,255,255,.84);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border:1px solid var(--line);
  box-shadow:var(--shadow-soft);
  transition:height .28s ease, box-shadow .28s ease, background .28s ease;
}
.nav-shell.is-scrolled{ height:54px; box-shadow:var(--shadow-lift); background:rgba(255,255,255,.94); }
.brand{ display:flex; align-items:center; gap:10px; flex:0 0 auto; }
.brand-mark{
  width:34px; height:34px; border-radius:11px;
  display:flex; align-items:center; justify-content:center;
  background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
  color:#fff; font-size:13px; font-weight:700; letter-spacing:.02em;
  box-shadow:0 4px 12px rgba(29,95,208,.28);
}
.brand-text{ display:flex; flex-direction:column; line-height:1.2; }
.brand-text strong{ font-size:15px; font-weight:700; color:var(--ink-900); }
.brand-text em{ font-size:11px; font-style:normal; color:var(--ink-500); letter-spacing:.02em; }
.nav-links{ display:none; align-items:center; gap:2px; margin-left:auto; }
.nav-links a{
  display:inline-flex; align-items:center; height:38px; padding:0 14px;
  font-size:14px; color:var(--ink-700); border-radius:999px;
  transition:background .2s ease, color .2s ease;
  white-space:nowrap;
}
.nav-links a:hover{ background:var(--brand-50); color:var(--brand-700); }
.nav-links a.active{ background:var(--brand-50); color:var(--brand-600); font-weight:600; }
.nav-actions{ display:flex; align-items:center; gap:10px; margin-left:auto; }
.nav-phone{ display:none; font-size:13px; color:var(--ink-500); font-variant-numeric:tabular-nums; }
.nav-phone:hover{ color:var(--brand-600); }
.nav-toggle{
  width:40px; height:40px; border-radius:999px; border:1px solid var(--line);
  background:#fff; display:flex; align-items:center; justify-content:center;
}
.nav-toggle span{ display:block; width:16px; height:1.6px; background:var(--ink-700); position:relative; }
.nav-toggle span::before,.nav-toggle span::after{
  content:""; position:absolute; left:0; width:16px; height:1.6px; background:var(--ink-700);
}
.nav-toggle span::before{ top:-5px; } .nav-toggle span::after{ top:5px; }
.mobile-panel{
  pointer-events:auto;
  width:min(1200px, calc(100% - 32px));
  margin:10px auto 0;
  background:#fff; border:1px solid var(--line); border-radius:22px;
  box-shadow:var(--shadow-lift); padding:12px;
  display:none; flex-direction:column; gap:2px;
}
.mobile-panel.is-open{ display:flex; }
.mobile-panel a{
  display:flex; align-items:center; height:48px; padding:0 14px;
  border-radius:14px; font-size:15px; color:var(--ink-700);
}
.mobile-panel a:hover,.mobile-panel a.active{ background:var(--brand-50); color:var(--brand-600); font-weight:600; }
.mobile-panel .btn{ margin-top:10px; }
.mobile-phone{ display:flex; align-items:center; justify-content:center; height:44px; font-size:13px; color:var(--ink-500); }
@media (min-width:1024px){
  .site-header{ padding-top:16px; }
  .nav-links{ display:flex; }
  .nav-toggle{ display:none; }
  .nav-phone{ display:inline-flex; }
  .mobile-panel{ display:none !important; }
  .nav-actions{ margin-left:0; }
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex; align-items:center; justify-content:center; gap:8px;
  height:46px; padding:0 22px; border-radius:var(--radius-btn);
  font-size:15px; font-weight:600; white-space:nowrap;
  transition:transform .2s ease, background .2s ease, box-shadow .2s ease, border-color .2s ease, color .2s ease;
}
.btn-sm{ height:38px; padding:0 16px; font-size:13.5px; border-radius:999px; }
.btn-primary{ background:var(--brand-600); color:#fff; box-shadow:0 6px 16px rgba(29,95,208,.22); }
.btn-primary:hover{ background:var(--brand-500); transform:translateY(-2px); box-shadow:var(--shadow-lift); }
.btn-primary:active{ background:var(--brand-600); transform:translateY(0); }
.btn-ghost{ background:#fff; color:var(--brand-700); border:1px solid var(--brand-100); }
.btn-ghost:hover{ background:var(--brand-50); transform:translateY(-2px); box-shadow:var(--shadow-soft); }
.btn-ghost:active{ transform:translateY(0); }
.btn-accent{ background:var(--accent-500); color:#3A2503; box-shadow:0 6px 16px rgba(245,158,11,.26); }
.btn-accent:hover{ background:#FBAE2E; transform:translateY(-2px); box-shadow:0 12px 28px rgba(245,158,11,.3); }
.btn-block{ width:100%; }
.btn-link{
  display:inline-flex; align-items:center; gap:6px; color:var(--brand-600);
  font-size:14px; font-weight:600;
}
.btn-link svg{ transition:transform .2s ease; }
.btn-link:hover svg{ transform:translateX(4px); }

/* ---------- 通用板块 ---------- */
main{ padding-top:92px; }
@media (min-width:1024px){ main{ padding-top:108px; } }
.section{ padding:56px 0; }
@media (min-width:640px){ .section{ padding:64px 0; } }
@media (min-width:1024px){ .section{ padding:92px 0; } }
.section-head{ max-width:720px; margin-bottom:28px; }
@media (min-width:1024px){ .section-head{ margin-bottom:40px; } }
.section-title{ font-size:24px; }
@media (min-width:640px){ .section-title{ font-size:28px; } }
@media (min-width:1024px){ .section-title{ font-size:34px; } }
.section-sub{ margin-top:12px; font-size:15px; color:var(--ink-500); }
.eyebrow{
  display:inline-flex; align-items:center; gap:8px; height:30px; padding:0 14px;
  border-radius:999px; background:var(--brand-50); color:var(--brand-600);
  font-size:12.5px; font-weight:600; letter-spacing:.02em;
}
.eyebrow .dot{ width:6px; height:6px; border-radius:999px; background:var(--accent-500); }
.divider{ height:1px; background:var(--line); border:0; margin:0; }

/* ---------- 面包屑 ---------- */
.breadcrumb{ display:flex; align-items:center; flex-wrap:wrap; gap:8px; padding:20px 0 0; font-size:13px; color:var(--ink-500); }
.breadcrumb a{ color:var(--ink-500); }
.breadcrumb a:hover{ color:var(--brand-600); }
.breadcrumb .sep{ color:#B7C3D4; }
.breadcrumb .current{ color:var(--ink-900); font-weight:600; }

/* ---------- Hero ---------- */
.hero-cat{ padding:24px 0 8px; }
.hero-grid{ display:grid; grid-template-columns:1fr; gap:28px; align-items:center; }
@media (min-width:1024px){ .hero-grid{ grid-template-columns:7fr 5fr; gap:48px; } }
.hero-copy h1{ font-size:30px; line-height:1.2; margin-top:16px; }
@media (min-width:640px){ .hero-copy h1{ font-size:38px; } }
@media (min-width:1024px){ .hero-copy h1{ font-size:48px; } }
.hero-lead{ margin-top:16px; font-size:15.5px; color:var(--ink-700); max-width:620px; }
.hero-actions{ display:flex; flex-wrap:wrap; gap:12px; margin-top:26px; }
.hero-facts{ display:flex; flex-wrap:wrap; gap:10px; margin-top:26px; }
.fact-chip{
  display:inline-flex; align-items:center; gap:8px; height:34px; padding:0 14px;
  border-radius:999px; background:#fff; border:1px solid var(--line);
  font-size:13px; color:var(--ink-700); box-shadow:var(--shadow-soft);
}
.fact-chip svg{ color:var(--brand-600); flex:0 0 auto; }
.hero-media{ position:relative; }
.hero-media img{
  width:100%; aspect-ratio:16/9; object-fit:cover;
  border-radius:var(--radius-lg); box-shadow:var(--shadow-lift);
}
.hero-media .badge-float{
  position:absolute; left:16px; bottom:-14px;
  display:inline-flex; align-items:center; gap:8px;
  padding:10px 16px; border-radius:999px; background:#fff;
  border:1px solid var(--line); box-shadow:var(--shadow-soft);
  font-size:13px; font-weight:600; color:var(--ink-900);
}
.hero-media .badge-float i{
  width:8px; height:8px; border-radius:999px; background:var(--accent-500); display:block;
}

/* ---------- 图标卡网格 ---------- */
.icon-grid{ display:grid; grid-template-columns:1fr; gap:20px; }
@media (min-width:640px){ .icon-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); } }
@media (min-width:1024px){ .icon-grid{ grid-template-columns:repeat(4,minmax(0,1fr)); gap:24px; } }
.icon-card{
  display:flex; flex-direction:column; gap:14px;
  min-height:196px; padding:24px;
  background:#fff; border:1px solid var(--line); border-radius:var(--radius-card);
  transition:transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.icon-card:hover{ transform:translateY(-4px); border-color:var(--brand-100); box-shadow:var(--shadow-lift); }
.icon-box{
  width:44px; height:44px; border-radius:14px; flex:0 0 auto;
  display:flex; align-items:center; justify-content:center;
  background:var(--brand-50); color:var(--brand-600);
}
.icon-card h3{ font-size:17px; font-weight:600; }
.icon-card p{ font-size:14px; line-height:1.75; color:var(--ink-500); }
.icon-card .idx{
  margin-top:auto; font-size:12px; font-weight:700; letter-spacing:.08em;
  color:#C3CFE0; font-variant-numeric:tabular-nums;
}

/* ---------- 对比表 ---------- */
.cmp-wrap{
  background:#fff; border:1px solid var(--line); border-radius:var(--radius-lg);
  box-shadow:var(--shadow-soft); overflow:hidden;
}
.cmp-scroll{ overflow-x:auto; }
.cmp-table{ width:100%; min-width:720px; border-collapse:collapse; font-size:14.5px; }
.cmp-table caption{
  caption-side:top; text-align:left; padding:22px 24px 0;
  font-size:13px; color:var(--ink-500);
}
.cmp-table th,.cmp-table td{
  padding:16px 20px; text-align:left; border-bottom:1px solid var(--line);
  vertical-align:top;
}
.cmp-table thead th{
  background:var(--brand-50); color:var(--brand-700);
  font-size:13.5px; font-weight:700; white-space:nowrap; border-bottom:1px solid var(--brand-100);
}
.cmp-table tbody tr:nth-child(odd){ background:#FBFCFE; }
.cmp-table tbody tr:hover{ background:var(--brand-50); }
.cmp-table tbody tr:last-child td{ border-bottom:0; }
.cmp-table td strong{ color:var(--ink-900); font-weight:600; }

/* ---------- 深色面板 ---------- */
.dark-panel{
  background:linear-gradient(135deg,#0F172A 0%,#132A52 100%);
  border-radius:var(--radius-lg); padding:32px 24px; color:#C9D6EA;
  box-shadow:var(--shadow-lift);
}
@media (min-width:1024px){ .dark-panel{ padding:48px 44px; } }
.dark-panel h2{ color:#fff; font-size:22px; }
@media (min-width:1024px){ .dark-panel h2{ font-size:28px; } }
.dark-panel .dark-sub{ margin-top:12px; font-size:14.5px; color:#9CB0CE; max-width:620px; }
.dark-list{ display:grid; grid-template-columns:1fr; gap:18px; margin-top:28px; }
@media (min-width:768px){ .dark-list{ grid-template-columns:repeat(3,minmax(0,1fr)); gap:24px; } }
.dark-item{ padding-left:18px; border-left:2px solid rgba(245,158,11,.75); }
.dark-item h3{ color:#fff; font-size:16px; font-weight:600; }
.dark-item p{ margin-top:6px; font-size:14px; color:#9CB0CE; line-height:1.75; }

/* ---------- 横向 CTA 带 ---------- */
.cta-band{
  background:linear-gradient(120deg,var(--brand-600),var(--brand-500));
  border-radius:var(--radius-lg); padding:30px 24px; color:#fff;
  display:flex; flex-direction:column; gap:20px; align-items:flex-start;
  box-shadow:var(--shadow-lift);
}
@media (min-width:768px){
  .cta-band{ flex-direction:row; align-items:center; justify-content:space-between; padding:34px 40px; gap:32px; }
}
.cta-band h2{ color:#fff; font-size:21px; }
@media (min-width:1024px){ .cta-band h2{ font-size:25px; } }
.cta-band p{ margin-top:8px; font-size:14.5px; color:rgba(255,255,255,.86); max-width:560px; }
.cta-band .band-actions{ display:flex; flex-wrap:wrap; gap:12px; }
.cta-band .btn-light{ background:#fff; color:var(--brand-700); }
.cta-band .btn-light:hover{ background:#F3F7FF; transform:translateY(-2px); box-shadow:0 12px 28px rgba(6,26,60,.28); }
.cta-band .btn-outline{ border:1px solid rgba(255,255,255,.55); color:#fff; }
.cta-band .btn-outline:hover{ background:rgba(255,255,255,.14); transform:translateY(-2px); }

/* ---------- 隐私说明 ---------- */
.privacy-note{
  margin-top:22px; padding:18px 20px; border-radius:16px;
  background:#fff; border:1px dashed var(--line);
  font-size:13px; color:var(--ink-500); line-height:1.9;
}
.privacy-note a{ color:var(--brand-600); text-decoration:underline; text-underline-offset:3px; }

/* ---------- 页脚 ---------- */
.site-footer{ margin-top:56px; background:var(--brand-900); color:#C7D6EE; padding:48px 0 24px; }
@media (min-width:1024px){ .site-footer{ margin-top:92px; padding:64px 0 28px; } }
.footer-grid{ display:grid; grid-template-columns:1fr; gap:32px; }
@media (min-width:640px){ .footer-grid{ grid-template-columns:repeat(2,minmax(0,1fr)); } }
@media (min-width:1024px){ .footer-grid{ grid-template-columns:1.4fr 1fr 1fr 1.1fr; gap:40px; } }
.footer-brand .brand-mark{ background:linear-gradient(135deg,#2F7BE5,#1D5FD0); }
.footer-brand .brand-text strong{ color:#fff; }
.footer-brand .brand-text em{ color:#9FB6DA; }
.footer-brand p{ margin-top:16px; font-size:13.5px; line-height:1.85; color:#A9BDDC; max-width:340px; }
.footer-col h4{ color:#fff; font-size:14px; font-weight:600; margin-bottom:14px; }
.footer-col ul{ display:flex; flex-direction:column; gap:10px; }
.footer-col a{ font-size:13.5px; color:#A9BDDC; transition:color .2s ease; }
.footer-col a:hover{ color:#fff; }
.footer-contact li{ display:flex; align-items:center; gap:10px; font-size:13.5px; color:#A9BDDC; }
.footer-contact svg{ width:17px; height:17px; flex:0 0 auto; color:#7FA5DD; }
.footer-bottom{
  margin-top:36px; padding-top:20px; border-top:1px solid rgba(255,255,255,.14);
  display:flex; flex-wrap:wrap; align-items:center; justify-content:space-between; gap:14px;
  font-size:12.5px; color:#8FA6C9;
}
.to-top{
  display:inline-flex; align-items:center; gap:8px; height:38px; padding:0 16px;
  border-radius:999px; background:rgba(255,255,255,.12); color:#fff; font-size:13px;
  transition:background .2s ease, transform .2s ease;
}
.to-top:hover{ background:rgba(255,255,255,.2); transform:translateY(-2px); }

/* ---------- 弹层 ---------- */
.modal{
  position:fixed; inset:0; z-index:90; display:flex; align-items:center; justify-content:center;
  padding:20px; opacity:0; visibility:hidden;
  transition:opacity .24s ease, visibility .24s ease;
}
.modal.is-open{ opacity:1; visibility:visible; }
.modal-mask{ position:absolute; inset:0; background:rgba(15,23,42,.5); }
.modal-panel{
  position:relative; width:100%; max-width:560px; max-height:88vh; overflow-y:auto;
  background:#fff; border-radius:var(--radius-lg); padding:28px 24px;
  box-shadow:var(--shadow-lift);
  transform:translateY(14px) scale(.98); transition:transform .28s cubic-bezier(.22,1,.36,1);
}
@media (min-width:640px){ .modal-panel{ padding:32px; } }
.modal.is-open .modal-panel{ transform:none; }
.modal-close{
  position:absolute; top:14px; right:14px; width:36px; height:36px; border-radius:999px;
  display:flex; align-items:center; justify-content:center; color:var(--ink-500);
  background:var(--mist-50); transition:background .2s ease, color .2s ease;
}
.modal-close:hover{ background:var(--brand-50); color:var(--brand-600); }
.modal-panel h3{ font-size:20px; }
.modal-sub{ margin-top:8px; font-size:13.5px; color:var(--ink-500); }
.form-grid{ display:flex; flex-direction:column; gap:16px; margin-top:22px; }
.field label{ display:block; font-size:13.5px; font-weight:600; color:var(--ink-900); margin-bottom:7px; }
.field input,.field select,.field textarea{
  width:100%; height:48px; padding:0 14px; border-radius:var(--radius-btn);
  border:1px solid var(--line); background:#fff; color:var(--ink-900);
  transition:border-color .2s ease, box-shadow .2s ease;
}
.field textarea{ height:104px; padding:12px 14px; resize:vertical; line-height:1.7; }
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none; border-color:var(--brand-500); box-shadow:0 0 0 3px rgba(47,123,229,.16);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{ border-color:#DC2626; }
.field .err{ display:none; margin-top:6px; font-size:12.5px; color:#DC2626; }
.field.has-error .err{ display:block; }
.check-row{ display:flex; align-items:flex-start; gap:10px; font-size:13px; color:var(--ink-500); line-height:1.7; }
.check-row input{ width:18px; height:18px; margin-top:3px; accent-color:var(--brand-600); flex:0 0 auto; }
.check-row a{ color:var(--brand-600); text-decoration:underline; text-underline-offset:3px; }
.form-note{ display:none; margin-top:4px; padding:12px 14px; border-radius:12px; font-size:13.5px; }
.form-note.ok{ display:block; background:#ECFDF5; color:#047857; border:1px solid #A7F3D0; }
.form-note.bad{ display:block; background:#FEF2F2; color:#B91C1C; border:1px solid #FECACA; }
.modal-privacy{ margin-top:14px; font-size:12.5px; color:var(--ink-500); line-height:1.85; }
.modal-privacy a{ color:var(--brand-600); text-decoration:underline; text-underline-offset:3px; }

@media (prefers-reduced-motion:reduce){
  *{ animation-duration:.01ms !important; transition-duration:.01ms !important; scroll-behavior:auto !important; }
}

/* roulang page: category2 */
:root{
    --brand-600:#1D5FD0;
    --brand-500:#2F7BE5;
    --brand-50:#EEF4FE;
    --brand-100:#DCE8FB;
    --brand-900:#0B3A87;
    --accent-500:#F59E0B;
    --accent-50:#FFF7E8;
    --ink-900:#0F172A;
    --ink-700:#334155;
    --ink-500:#64748B;
    --mist-50:#F7F9FC;
    --line:#E2E8F0;
    --white:#FFFFFF;
    --radius-card:20px;
    --radius-sm:12px;
    --shadow-soft:0 1px 2px rgba(15,23,42,.04), 0 8px 24px rgba(29,95,208,.08);
    --shadow-lift:0 12px 32px rgba(29,95,208,.14);
    --shadow-btn:0 6px 18px rgba(29,95,208,.22);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  html body{
    margin:0;
    padding-top:92px;
    font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    color:var(--ink-700);
    background:var(--mist-50);
    -webkit-font-smoothing:antialiased;
    font-variant-numeric:tabular-nums;
  }
  img{max-width:100%;display:block;border:0;}
  a{color:inherit;text-decoration:none;}
  button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
  button{background:none;border:0;cursor:pointer;}
  h1,h2,h3,h4{margin:0;color:var(--ink-900);font-weight:700;letter-spacing:-0.01em;line-height:1.25;}
  p{margin:0;}
  ul,ol{margin:0;padding:0;list-style:none;}
  :focus-visible{outline:2px solid var(--brand-500);outline-offset:3px;border-radius:6px;}

  ::-webkit-scrollbar{width:10px;height:10px;}
  ::-webkit-scrollbar-track{background:var(--mist-50);}
  ::-webkit-scrollbar-thumb{background:#C7D6EC;border-radius:999px;border:2px solid var(--mist-50);}
  ::-webkit-scrollbar-thumb:hover{background:#A9C0E0;}

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
  .section{padding:92px 0;}
  .section-tight{padding:64px 0;}
  .section-head{max-width:760px;margin-bottom:40px;}
  .eyebrow{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:var(--brand-50);color:var(--brand-600);font-size:13px;font-weight:600;letter-spacing:.02em;margin-bottom:16px;}
  .eyebrow svg{width:14px;height:14px;}
  .section-head h2{font-size:34px;margin-bottom:14px;}
  .section-head p{font-size:16px;color:var(--ink-700);}
  .muted{color:var(--ink-500);font-size:14px;}

  /* ---------- 顶部悬浮胶囊导航 ---------- */
  .site-header{position:fixed;top:16px;left:0;right:0;z-index:60;display:flex;justify-content:center;padding:0 16px;}
  .nav-shell{
    width:min(1200px,100%);
    display:flex;align-items:center;gap:14px;
    padding:10px 12px 10px 16px;
    border-radius:999px;
    background:rgba(255,255,255,.86);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    border:1px solid var(--line);
    box-shadow:var(--shadow-soft);
    transition:box-shadow .28s ease,background .28s ease,padding .28s ease;
  }
  .site-header.is-scrolled .nav-shell{
    background:rgba(255,255,255,.96);
    box-shadow:var(--shadow-lift);
    padding-top:8px;padding-bottom:8px;
  }
  .brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .brand-mark{
    width:38px;height:38px;border-radius:12px;
    background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
    color:#fff;display:grid;place-items:center;
    font-size:14px;font-weight:700;letter-spacing:.02em;
    box-shadow:0 6px 16px rgba(29,95,208,.24);
  }
  .brand-text{display:flex;flex-direction:column;line-height:1.15;}
  .brand-text strong{font-size:15px;font-weight:700;color:var(--ink-900);}
  .brand-text em{font-style:normal;font-size:11px;color:var(--ink-500);letter-spacing:.02em;}

  .nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
  .nav-links a{
    padding:9px 15px;border-radius:999px;font-size:14px;font-weight:500;
    color:var(--ink-700);white-space:nowrap;transition:background .2s ease,color .2s ease;
  }
  .nav-links a:hover{background:var(--brand-50);color:var(--brand-600);}
  .nav-links a.active{background:var(--brand-50);color:var(--brand-600);font-weight:600;}

  .nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
  .nav-phone{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--ink-700);padding:8px 10px;border-radius:999px;transition:background .2s ease,color .2s ease;}
  .nav-phone:hover{background:var(--brand-50);color:var(--brand-600);}
  .nav-phone svg{width:16px;height:16px;}

  .nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;}
  .nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink-700);transition:transform .25s ease,opacity .25s 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);}

  .mobile-panel{
    position:absolute;top:calc(100% + 10px);left:16px;right:16px;
    background:#fff;border:1px solid var(--line);border-radius:20px;
    box-shadow:var(--shadow-lift);padding:12px;
    display:none;
  }
  .mobile-panel.is-open{display:block;}
  .mobile-panel a{
    display:flex;align-items:center;justify-content:space-between;
    min-height:48px;padding:0 14px;border-radius:12px;
    font-size:15px;color:var(--ink-700);font-weight:500;
  }
  .mobile-panel a:hover,.mobile-panel a.active{background:var(--brand-50);color:var(--brand-600);font-weight:600;}
  .mobile-panel .panel-cta{margin-top:8px;display:grid;gap:10px;padding:10px 4px 4px;border-top:1px solid var(--line);}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:46px;padding:0 22px;border-radius:12px;
    font-size:15px;font-weight:600;white-space:nowrap;
    border:1px solid transparent;cursor:pointer;
    transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
  }
  .btn svg{width:17px;height:17px;}
  .btn-primary{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-btn);}
  .btn-primary:hover{background:var(--brand-500);transform:translateY(-2px);box-shadow:var(--shadow-lift);}
  .btn-primary:active{background:var(--brand-600);transform:none;box-shadow:var(--shadow-btn);}
  .btn-accent{background:var(--accent-500);color:#3B2506;box-shadow:0 6px 18px rgba(245,158,11,.28);}
  .btn-accent:hover{background:#E08F06;transform:translateY(-2px);box-shadow:0 12px 28px rgba(245,158,11,.32);}
  .btn-accent:active{background:var(--accent-500);transform:none;}
  .btn-ghost{background:#fff;border-color:var(--brand-100);color:var(--brand-600);}
  .btn-ghost:hover{background:var(--brand-50);transform:translateY(-2px);box-shadow:var(--shadow-soft);}
  .btn-ghost-light{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.5);color:#fff;}
  .btn-ghost-light:hover{background:rgba(255,255,255,.24);transform:translateY(-2px);}
  .btn-sm{height:40px;padding:0 16px;font-size:14px;border-radius:10px;}

  .link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--brand-600);}
  .link-arrow svg{width:15px;height:15px;transition:transform .22s ease;}
  .link-arrow:hover svg{transform:translateX(4px);}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-500);margin:28px 0 20px;}
  .breadcrumb a{color:var(--ink-500);transition:color .2s ease;}
  .breadcrumb a:hover{color:var(--brand-600);}
  .breadcrumb .sep{color:#CBD5E1;}
  .breadcrumb .current{color:var(--ink-900);font-weight:600;}

  /* ---------- 顶部横幅 ---------- */
  .banner{
    position:relative;overflow:hidden;border-radius:28px;
    padding:52px 48px 48px;
    color:#fff;
    background-image:linear-gradient(105deg,rgba(11,58,135,.94) 0%,rgba(29,95,208,.82) 55%,rgba(47,123,229,.7) 100%),url('/assets/images/backpic/back-1.png');
    background-size:cover;background-position:center;
    box-shadow:var(--shadow-soft);
  }
  .banner::after{
    content:'';position:absolute;right:-60px;top:-60px;width:260px;height:260px;border-radius:50%;
    background:radial-gradient(circle,rgba(245,158,11,.34),rgba(245,158,11,0) 68%);
  }
  .banner-inner{position:relative;z-index:2;max-width:760px;}
  .banner-tag{display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);font-size:13px;font-weight:600;margin-bottom:18px;}
  .banner h1{font-size:48px;color:#fff;line-height:1.16;margin-bottom:16px;}
  .banner .lead{font-size:17px;line-height:1.8;color:rgba(255,255,255,.9);max-width:640px;}
  .banner-stats{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
  .banner-stat{display:flex;align-items:center;gap:10px;padding:10px 16px;border-radius:14px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22);font-size:14px;font-weight:600;}
  .banner-stat svg{width:17px;height:17px;}

  /* ---------- 开始前的准备条 ---------- */
  .prep-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
  .prep-card{
    display:flex;gap:16px;align-items:flex-start;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:26px 26px 24px;box-shadow:var(--shadow-soft);
    transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
  }
  .prep-card:hover{transform:translateY(-4px);border-color:var(--brand-100);box-shadow:var(--shadow-lift);}
  .prep-icon{
    flex:0 0 auto;width:44px;height:44px;border-radius:14px;
    display:grid;place-items:center;background:var(--brand-50);color:var(--brand-600);
  }
  .prep-icon svg{width:20px;height:20px;}
  .prep-card h3{font-size:17px;margin-bottom:6px;}
  .prep-card p{font-size:14px;color:var(--ink-500);line-height:1.75;}

  /* ---------- 时间轴 ---------- */
  .timeline-block{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
  .timeline{position:relative;padding-left:84px;}
  .timeline::before{
    content:'';position:absolute;left:28px;top:14px;bottom:14px;width:2px;border-radius:2px;
    background:linear-gradient(180deg,var(--brand-100) 0%,var(--brand-500) 45%,var(--brand-100) 100%);
  }
  .tl-item{position:relative;margin-bottom:28px;}
  .tl-item:last-child{margin-bottom:0;}
  .tl-node{
    position:absolute;left:-84px;top:22px;
    width:56px;height:56px;border-radius:50%;
    display:grid;place-items:center;
    background:linear-gradient(135deg,var(--brand-600),var(--brand-500));
    color:#fff;font-size:16px;font-weight:700;letter-spacing:.02em;
    box-shadow:0 8px 20px rgba(29,95,208,.28);
    border:4px solid #fff;
  }
  .tl-card{
    display:grid;grid-template-columns:minmax(0,300px) minmax(0,1fr);
    gap:26px;align-items:center;
    background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
    padding:22px;box-shadow:var(--shadow-soft);
    transition:transform .24s ease,border-color .24s ease,box-shadow .24s ease;
  }
  .tl-card:hover{transform:translateY(-4px);border-color:var(--brand-100);box-shadow:var(--shadow-lift);}
  .tl-item:nth-child(even) .tl-media{order:2;}
  .tl-item:nth-child(even) .tl-body{order:1;}
  .tl-media{
    border-radius:16px;overflow:hidden;background:rgba(29,95,208,.08);
    aspect-ratio:16/9;
  }
  .tl-media img{width:100%;height:100%;object-fit:cover;}
  .tl-body{padding:6px 6px 6px 0;}
  .tl-step{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--brand-600);background:var(--brand-50);border-radius:999px;padding:5px 12px;margin-bottom:12px;}
  .tl-body h3{font-size:22px;margin-bottom:10px;}
  .tl-body > p{font-size:15px;color:var(--ink-700);margin-bottom:16px;}
  .tl-list{display:grid;gap:8px;margin-bottom:16px;}
  .tl-list li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--ink-700);}
  .tl-list li svg{flex:0 0 auto;width:17px;height:17px;margin-top:4px;color:var(--brand-500);}
  .tl-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;padding-top:14px;border-top:1px dashed var(--line);}
  .tag{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:999px;font-size:12px;font-weight:600;background:var(--brand-50);color:var(--brand-600);}
  .tag-time{background:var(--mist-50);color:var(--ink-500);border:1px solid var(--line);}

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:12px;}
  .faq-item{
    background:#fff;border:1px solid var(--line);border-radius:16px;
    padding:2px 22px;transition:border-color .22s ease,box-shadow .22s ease;
  }
  .faq-item[open]{border-color:var(--brand-100);box-shadow:var(--shadow-soft);}
  .faq-item summary{
    list-style:none;cursor:pointer;position:relative;
    display:flex;align-items:center;justify-content:space-between;gap:18px;
    padding:20px 0 20px 18px;font-size:17px;font-weight:600;color:var(--ink-900);
  }
  .faq-item summary::-webkit-details-marker{display:none;}
  .faq-item summary::before{
    content:'';position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:3px;
    background:transparent;transition:background .22s ease;
  }
  .faq-item[open] summary::before{background:var(--accent-500);}
  .faq-icon{flex:0 0 auto;width:22px;height:22px;color:var(--ink-500);transition:transform .26s ease,color .26s ease;}
  .faq-item[open] .faq-icon{transform:rotate(180deg);color:var(--brand-600);}
  .faq-answer{padding:0 0 22px 18px;font-size:15px;line-height:1.85;color:var(--ink-700);}

  /* ---------- CTA 带 ---------- */
  .cta-band{
    position:relative;overflow:hidden;border-radius:24px;
    padding:44px 44px;
    display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
    color:#fff;
    background-image:linear-gradient(115deg,rgba(11,58,135,.96) 0%,rgba(29,95,208,.88) 60%,rgba(47,123,229,.8) 100%),url('/assets/images/backpic/back-3.png');
    background-size:cover;background-position:center;
    box-shadow:var(--shadow-lift);
  }
  .cta-band h2{color:#fff;font-size:30px;margin-bottom:10px;}
  .cta-band p{color:rgba(255,255,255,.9);font-size:16px;max-width:560px;}
  .cta-actions{display:flex;align-items:center;gap:12px;flex-wrap:wrap;}
  .cta-phone{display:inline-flex;align-items:center;gap:8px;color:#fff;font-weight:600;font-size:15px;padding:0 6px;}
  .cta-phone svg{width:18px;height:18px;}
  .privacy-note{max-width:720px;margin:18px auto 0;text-align:center;font-size:13px;color:var(--ink-500);line-height:1.8;}
  .privacy-note a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;}

  /* ---------- 弹层表单 ---------- */
  .modal{
    position:fixed;inset:0;z-index:100;
    display:grid;place-items:center;padding:20px;
    visibility:hidden;opacity:0;pointer-events:none;
    transition:opacity .26s ease,visibility .26s ease;
  }
  .modal.is-open{visibility:visible;opacity:1;pointer-events:auto;}
  .modal-backdrop{position:absolute;inset:0;background:rgba(15,23,42,.5);}
  .modal-panel{
    position:relative;width:100%;max-width:560px;max-height:90vh;overflow:auto;
    background:#fff;border-radius:24px;padding:30px;box-shadow:var(--shadow-lift);
    transform:translateY(12px) scale(.98);transition:transform .28s ease;
  }
  .modal.is-open .modal-panel{transform:none;}
  .modal-close{
    position:absolute;top:16px;right:16px;width:38px;height:38px;border-radius:12px;
    display:grid;place-items:center;color:var(--ink-500);background:var(--mist-50);
    transition:background .2s ease,color .2s ease;
  }
  .modal-close:hover{background:var(--brand-50);color:var(--brand-600);}
  .modal-close svg{width:17px;height:17px;}
  .modal-panel h3{font-size:22px;margin-bottom:8px;}
  .modal-panel .sub{font-size:14px;color:var(--ink-500);margin-bottom:22px;}
  .field{margin-bottom:16px;}
  .field label{display:block;font-size:14px;font-weight:600;color:var(--ink-700);margin-bottom:8px;}
  .field input,.field select,.field textarea{
    width:100%;height:48px;padding:0 14px;
    border:1px solid var(--line);border-radius:12px;background:#fff;
    font-size:15px;color:var(--ink-900);
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .field textarea{height:auto;min-height:104px;padding:12px 14px;line-height:1.7;resize:vertical;}
  .field input:focus,.field select:focus,.field textarea:focus{
    outline:none;border-color:var(--brand-500);box-shadow:0 0 0 3px rgba(47,123,229,.18);
  }
  .check-row{display:flex;align-items:flex-start;gap:10px;font-size:13px;color:var(--ink-500);line-height:1.7;margin:6px 0 18px;}
  .check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--brand-600);flex:0 0 auto;}
  .check-row a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;}
  .form-msg{display:none;margin-top:14px;padding:12px 14px;border-radius:12px;font-size:14px;background:var(--brand-50);color:var(--brand-600);border:1px solid var(--brand-100);}
  .form-msg.is-visible{display:block;}

  /* ---------- 页脚 ---------- */
  .site-footer{background:var(--brand-900);color:rgba(255,255,255,.78);padding:72px 0 28px;margin-top:92px;}
  .footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.14);}
  .footer-brand .brand{margin-bottom:18px;}
  .footer-brand .brand-mark{background:rgba(255,255,255,.14);box-shadow:none;color:#fff;}
  .footer-brand .brand-text strong{color:#fff;}
  .footer-brand .brand-text em{color:rgba(255,255,255,.6);}
  .footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.7);max-width:340px;}
  .footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;}
  .footer-col ul{display:grid;gap:10px;}
  .footer-col a{font-size:14px;color:rgba(255,255,255,.72);transition:color .2s ease;}
  .footer-col a:hover{color:#fff;}
  .footer-contact li{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.72);}
  .footer-contact svg{width:17px;height:17px;flex:0 0 auto;color:rgba(255,255,255,.6);}
  .footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;padding-top:24px;font-size:13px;color:rgba(255,255,255,.6);}
  .to-top{
    display:inline-flex;align-items:center;gap:8px;
    padding:9px 16px;border-radius:999px;
    background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);
    color:#fff;font-size:13px;font-weight:600;transition:background .2s ease,transform .2s ease;
  }
  .to-top:hover{background:rgba(255,255,255,.22);transform:translateY(-2px);}
  .to-top svg{width:15px;height:15px;}

  /* ---------- 响应式 ---------- */
  @media (max-width:1180px){
    .nav-phone{display:none;}
  }
  @media (max-width:1024px){
    .container{padding:0 24px;}
    .section{padding:72px 0;}
    .banner{padding:44px 32px 40px;}
    .banner h1{font-size:38px;}
    .prep-grid{grid-template-columns:minmax(0,1fr);gap:20px;}
    .tl-card{grid-template-columns:minmax(0,240px) minmax(0,1fr);gap:22px;}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  }
  @media (max-width:900px){
    .nav-links{display:none;}
    .nav-actions .btn-primary{display:none;}
    .nav-toggle{display:inline-flex;}
    .footer-grid{grid-template-columns:1fr;gap:28px;}
  }
  @media (max-width:640px){
    html body{padding-top:84px;font-size:15px;}
    .container{padding:0 20px;}
    .section{padding:56px 0;}
    .section-head h2{font-size:26px;}
    .banner{border-radius:20px;padding:32px 22px 30px;}
    .banner h1{font-size:32px;}
    .banner .lead{font-size:15px;}
    .banner-stats{gap:10px;margin-top:22px;}
    .banner-stat{padding:8px 12px;font-size:13px;}
    .timeline{padding-left:48px;}
    .timeline::before{left:16px;}
    .tl-node{left:-48px;top:18px;width:32px;height:32px;font-size:13px;border-width:3px;}
    .tl-card{grid-template-columns:minmax(0,1fr);gap:16px;padding:16px;}
    .tl-item:nth-child(even) .tl-media{order:0;}
    .tl-item:nth-child(even) .tl-body{order:0;}
    .tl-body{padding:0 2px 4px;}
    .tl-body h3{font-size:19px;}
    .cta-band{padding:30px 22px;border-radius:20px;}
    .cta-band h2{font-size:24px;}
    .faq-item{padding:2px 18px;}
    .faq-item summary{font-size:16px;padding:18px 0 18px 14px;}
    .faq-answer{padding:0 0 20px 14px;}
    .modal-panel{padding:24px 20px;border-radius:20px;}
    .footer-bottom{flex-direction:column;align-items:flex-start;}
  }
  @media (prefers-reduced-motion:reduce){
    *{transition:none !important;animation:none !important;}
  }