/* roulang page: index */
:root{
  --brand:#125B9A;
  --brand-deep:#0B3B68;
  --brand-soft:#E9F2FA;
  --accent:#F5872B;
  --accent-deep:#DE7418;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --line:#E2EAF2;
  --text:#16212C;
  --text-2:#5C6C7C;
  --text-3:#8B99A6;
  --ok:#1F9D6B;
  --warn:#E0A21A;
  --err:#D64545;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow:0 1px 2px rgba(11,59,104,.05), 0 14px 34px -16px rgba(11,59,104,.18);
  --shadow-hover:0 2px 4px rgba(11,59,104,.07), 0 22px 44px -18px rgba(11,59,104,.28);
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
h1,h2,h3,h4{font-weight:700;color:var(--text);}
h1{font-size:clamp(30px,4.2vw,44px);line-height:1.25;}
h2{font-size:clamp(24px,2.6vw,30px);line-height:1.35;}
h3{font-size:20px;line-height:1.5;font-weight:600;}
p{font-size:16px;line-height:1.85;color:var(--text-2);text-align:left;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:88px 0;}
.section--soft{background:var(--brand-soft);}
.section--white{background:var(--surface);}
.section-head{max-width:760px;margin-bottom:32px;}
.section-head .eyebrow{display:inline-block;font-size:12px;letter-spacing:.08em;color:var(--brand);background:var(--brand-soft);border-radius:999px;padding:4px 12px;margin-bottom:14px;}
.section-head h2{margin-bottom:14px;}
.section-head p{font-size:16px;}

/* ============ 骨架网格覆盖 Foundation ============ */
.grid-x{margin-left:-12px;margin-right:-12px;}
.grid-x>.cell{padding-left:12px;padding-right:12px;}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x>.cell{margin-left:12px;margin-right:12px;width:calc(33.333% - 24px);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;border:1px solid transparent;
  transition:all .2s ease;white-space:nowrap;
}
.btn--primary{background:var(--accent);color:#fff;border-color:var(--accent);}
.btn--primary:hover{background:var(--accent-deep);border-color:var(--accent-deep);color:#fff;transform:translateY(-1px);}
.btn--ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn--ghost:hover{background:var(--brand-soft);color:var(--brand-deep);}
.btn--light{background:#fff;color:var(--brand-deep);border-color:#fff;}
.btn--light:hover{background:var(--brand-soft);color:var(--brand-deep);transform:translateY(-1px);}
.btn--sm{height:40px;padding:0 18px;font-size:14px;}
.btn--block{width:100%;}
.btn:disabled,.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--brand);}
.link-arrow i{font-size:13px;transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(3px);}

/* ============ 标签 / 徽章 ============ */
.tag{display:inline-block;font-size:12px;line-height:1.6;padding:4px 10px;border-radius:999px;background:var(--brand-soft);color:var(--brand);font-weight:600;}
.tag--accent{background:rgba(245,135,43,.14);color:#B65C0D;}
.badge-row{display:flex;flex-wrap:wrap;gap:10px;}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-2);background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;}
.badge i{color:var(--brand);font-size:12px;}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  backdrop-filter:blur(14px) saturate(150%);
  border-bottom:1px solid rgba(255,255,255,.45);
  box-shadow:0 2px 18px -10px rgba(11,59,104,.28);
  transition:background-color .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--line);
  box-shadow:0 6px 26px -14px rgba(11,59,104,.35);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;height:var(--nav-h);gap:20px;}
.logo{display:flex;align-items:center;gap:10px;color:var(--text);font-weight:700;font-size:18px;letter-spacing:.01em;}
.logo:hover{color:var(--brand);}
.logo-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;
}
.logo-text b{color:var(--brand);}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-list a{
  display:block;padding:8px 14px;font-size:15px;color:var(--text-2);border-radius:8px;
  position:relative;transition:color .2s ease,background-color .2s ease;
}
.nav-list a:hover{color:var(--brand);background:rgba(233,242,250,.75);}
.nav-list a.is-active{color:var(--brand);font-weight:600;}
.nav-list a.is-active::after{
  content:'';position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);background:#fff;
  color:var(--text-2);display:flex;align-items:center;justify-content:center;font-size:15px;
  transition:all .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft);}
.burger{display:none;}

/* 抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,59,104,.42);opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;z-index:1100;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(320px,86vw);background:var(--surface);z-index:1200;
  transform:translateX(100%);transition:transform .28s ease;display:flex;flex-direction:column;
  box-shadow:-16px 0 40px -20px rgba(11,59,104,.4);
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:18px 20px;border-bottom:1px solid var(--line);}
.drawer-body{padding:14px 12px;overflow-y:auto;flex:1;}
.drawer-group-title{font-size:12px;color:var(--text-3);padding:12px 12px 6px;letter-spacing:.08em;}
.drawer-body a{display:block;padding:12px 14px;border-radius:10px;color:var(--text);font-size:15px;}
.drawer-body a:hover,.drawer-body a.is-active{background:var(--brand-soft);color:var(--brand);}
.drawer-foot{padding:16px 20px 24px;border-top:1px solid var(--line);}

/* ============ Hero ============ */
.hero{
  position:relative;padding:calc(var(--nav-h) + 72px) 0 88px;
  background:linear-gradient(180deg,#F2F7FC 0%,var(--bg) 100%);
  overflow:hidden;
}
.hero::before{
  content:'';position:absolute;inset:0;
  background-image:radial-gradient(rgba(18,91,154,.09) 1px,transparent 1px);
  background-size:22px 22px;opacity:.6;pointer-events:none;
}
.hero .container{position:relative;z-index:2;}
.hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;min-height:560px;}
.hero-tag{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--brand);background:#fff;border:1px solid var(--line);border-radius:999px;padding:6px 14px;box-shadow:var(--shadow);}
.hero-tag i{color:var(--accent);}
.hero h1{margin:20px 0 16px;}
.hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:17px;color:var(--text-2);max-width:520px;margin-bottom:28px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-visual{position:relative;}
.hero-img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;box-shadow:var(--shadow);background:#e7eef5;}
.hero-float{
  position:absolute;left:-22px;bottom:26px;background:#fff;border-radius:14px;padding:14px 18px;
  box-shadow:var(--shadow-hover);display:flex;align-items:center;gap:12px;min-width:210px;
}
.hero-float .dot{width:10px;height:10px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(31,157,107,.15);flex:0 0 10px;}
.hero-float strong{display:block;font-size:20px;color:var(--brand-deep);line-height:1.2;}
.hero-float span{font-size:12px;color:var(--text-3);}

/* ============ 痛点 ============ */
.pain-grid{display:grid;grid-template-columns:minmax(240px,340px) 1fr;gap:56px;align-items:start;}
.pain-sticky{position:sticky;top:calc(var(--nav-h) + 32px);}
.pain-sticky h2{margin:12px 0 14px;}
.pain-list{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.pain-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow);transition:all .2s ease;}
.pain-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.pain-icon{
  width:44px;height:44px;border-radius:12px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:16px;
}
.pain-item h3{font-size:17px;margin-bottom:8px;}
.pain-item p{font-size:14px;line-height:1.75;}

/* ============ 解决方案 图文交错 ============ */
.solution-row{padding:64px 0;}
.solution-row--alt{background:var(--brand-soft);}
.solution-row .cell{display:flex;align-items:center;}
.solution-media img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#e7eef5;box-shadow:var(--shadow);}
.solution-body h3{font-size:22px;margin-bottom:12px;}
.solution-body p{font-size:15px;margin-bottom:18px;}
.solution-list{margin-bottom:20px;}
.solution-list li{display:flex;gap:10px;font-size:15px;color:var(--text-2);line-height:1.8;padding:6px 0;}
.solution-list li i{color:var(--ok);font-size:13px;margin-top:7px;flex:0 0 14px;}

/* ============ 成果数据 ============ */
.results{background:var(--brand-deep);color:#fff;padding:76px 0;}
.results h2{color:#fff;font-size:24px;margin-bottom:12px;}
.results .lead{color:#B9C7D4;font-size:15px;max-width:420px;line-height:1.8;}
.results-inner{display:grid;grid-template-columns:minmax(260px,360px) 1fr;gap:48px;align-items:center;}
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.metric{border-left:2px solid rgba(255,255,255,.18);padding-left:18px;}
.metric .num{font-size:34px;font-weight:700;color:var(--accent);line-height:1.15;}
.metric .num small{font-size:15px;font-weight:600;color:#fff;margin-left:2px;}
.metric span{display:block;font-size:13px;color:#B9C7D4;margin-top:6px;line-height:1.6;}

/* ============ 客户证言 ============ */
.voice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px;}
.voice-col--offset{margin-top:32px;}
.voice-card{background:#fff;border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow);transition:all .2s ease;margin-bottom:28px;}
.voice-card:last-child{margin-bottom:0;}
.voice-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.voice-card blockquote{font-size:16px;line-height:1.8;color:var(--text);margin-bottom:20px;position:relative;padding-left:16px;border-left:3px solid var(--brand-soft);}
.voice-meta{display:flex;align-items:center;gap:12px;}
.avatar{
  width:40px;height:40px;border-radius:50%;flex:0 0 40px;background:var(--brand-soft);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;aspect-ratio:1/1;
}
.voice-meta strong{display:block;font-size:15px;color:var(--text);}
.voice-meta span{font-size:13px;color:var(--text-3);}
.voice-card .tag{margin-top:18px;}

/* ============ 最新信息 ============ */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;flex-wrap:wrap;}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.news-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow);transition:all .2s ease;height:100%;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.news-card figure{margin:0;overflow:hidden;}
.news-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;background:#e7eef5;transition:transform .35s ease;}
.news-card:hover img{transform:scale(1.04);}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.news-body .tag{align-self:flex-start;margin-bottom:12px;}
.news-body h3{font-size:17px;line-height:1.55;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-body h3 a{color:var(--text);}
.news-body h3 a:hover{color:var(--brand);}
.news-body p{font-size:14px;line-height:1.75;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin-bottom:18px;}
.news-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);}
.news-foot i{color:var(--brand);font-size:13px;transition:transform .2s ease;}
.news-card:hover .news-foot i{transform:translateX(3px);}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;border:1px dashed var(--line);
  border-radius:var(--radius-card);background:#fff;
}
.empty-state i{font-size:34px;color:var(--text-3);display:block;margin-bottom:14px;}
.empty-state p{font-size:15px;margin-bottom:18px;text-align:center;}

/* 骨架占位 */
.skeleton{border-radius:var(--radius-card);background:linear-gradient(90deg,#EDF2F7 25%,#F7FAFC 37%,#EDF2F7 63%);background-size:400% 100%;animation:sk 1.4s ease infinite;height:120px;}
@keyframes sk{0%{background-position:100% 50%;}100%{background-position:0 50%;}}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;margin:0 auto;}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:14px;margin-bottom:14px;overflow:hidden;transition:background-color .2s ease,border-color .2s ease;}
.faq-item summary{
  list-style:none;cursor:pointer;position:relative;padding:18px 56px 18px 22px;
  font-size:16px;font-weight:600;color:var(--text);transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary::after{
  content:'';position:absolute;right:26px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:translateY(-70%) rotate(45deg);transition:transform .25s ease;
}
.faq-item[open]{background:var(--brand-soft);border-color:#CFE2F2;border-left:3px solid var(--brand);}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-item .faq-body{padding:0 22px 20px;font-size:15px;color:var(--text-2);line-height:1.85;}

/* ============ 收口 CTA ============ */
.cta-band{
  background:var(--brand);border-radius:24px;padding:48px;display:flex;align-items:center;
  justify-content:space-between;gap:32px;box-shadow:var(--shadow);
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:8px;}
.cta-band p{color:#CFE2F2;font-size:15px;margin:0;}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:#B9C7D4;padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px;}
.site-footer h3{color:#fff;font-size:15px;margin-bottom:18px;letter-spacing:.02em;}
.site-footer p{color:#B9C7D4;font-size:14px;line-height:1.85;}
.footer-logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px;}
.footer-logo .logo-mark{background:rgba(255,255,255,.14);}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#B9C7D4;font-size:14px;}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;line-height:1.7;}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.12);padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8FA5B8;}

/* ============ 响应式 ============ */
@media (max-width:1024px){
  .container{padding:0 24px;}
  .section{padding:64px 0;}
  .nav-list,.nav-actions .btn{display:none;}
  .burger{display:flex;}
  .hero{padding:calc(var(--nav-h) + 48px) 0 64px;}
  .hero-inner{grid-template-columns:1fr;gap:40px;min-height:auto;}
  .hero-img{aspect-ratio:16/9;}
  .hero-float{left:16px;}
  .pain-grid{grid-template-columns:1fr;gap:32px;}
  .pain-sticky{position:static;}
  .results-inner{grid-template-columns:1fr;gap:36px;}
  .metrics{grid-template-columns:repeat(2,1fr);}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .voice-col--offset{margin-top:0;}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px;}
  .solution-row{padding:48px 0;}
  .solution-row .cell{display:block;}
  .solution-media{margin-bottom:24px;}
}
@media (max-width:640px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  body{font-size:15px;}
  .hero{padding:calc(var(--nav-h) + 32px) 0 48px;}
  .hero-img{aspect-ratio:16/9;max-height:240px;}
  .hero-float{position:static;margin-top:-28px;margin-left:8px;min-width:0;width:calc(100% - 32px);}
  .hero-cta .btn{width:100%;}
  .pain-list{grid-template-columns:1fr;}
  .metrics{grid-template-columns:repeat(2,1fr);gap:20px;}
  .metric{padding-left:14px;}
  .metric .num{font-size:26px;}
  .news-grid{grid-template-columns:1fr;}
  .voice-grid{grid-template-columns:1fr;gap:20px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;border-radius:20px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .btn{height:46px;padding:0 20px;}
}

/* roulang page: category1 */
:root{
  --brand:#125B9A;
  --brand-deep:#0B3B68;
  --brand-soft:#E9F2FA;
  --accent:#F5872B;
  --accent-deep:#E2791B;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --line:#E2EAF2;
  --text:#16212C;
  --text-2:#5C6C7C;
  --text-3:#8B99A6;
  --ok:#1F9D6B;
  --warn:#E0A21A;
  --err:#D64545;
  --r-card:16px;
  --r-btn:10px;
  --r-pill:999px;
  --r-img:14px;
  --shadow:0 1px 2px rgba(11,59,104,.05),0 14px 34px -16px rgba(11,59,104,.18);
  --shadow-hover:0 2px 6px rgba(11,59,104,.08),0 22px 46px -18px rgba(11,59,104,.30);
  --container:1200px;
  --nav-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--bg);color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;line-height:1.85;font-weight:400;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background .2s ease}
a:hover{color:var(--brand-deep)}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.grid-x{display:flex;flex-wrap:wrap;margin-left:-16px;margin-right:-16px}
.grid-x>.cell{padding-left:16px;padding-right:16px;width:100%;min-width:0;flex:0 0 auto}
@media (min-width:1025px){
  .grid-x>.cell-3{width:25%}
  .grid-x>.cell-4{width:33.3333%}
  .grid-x>.cell-5{width:41.6667%}
  .grid-x>.cell-6{width:50%}
  .grid-x>.cell-7{width:58.3333%}
  .grid-x>.cell-8{width:66.6667%}
  .grid-x>.cell-9{width:75%}
}
@media (min-width:641px) and (max-width:1024px){
  .grid-x>.cell-md-6{width:50%}
  .grid-x>.cell-md-12{width:100%}
}
.align-middle{align-items:center}
.align-top{align-items:flex-start}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  backdrop-filter:blur(14px) saturate(150%);
  border-bottom:1px solid rgba(255,255,255,.45);
  box-shadow:0 8px 28px -22px rgba(11,59,104,.55);
  transition:background .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.site-header.is-scrolled{background:#FFFFFF;border-bottom-color:var(--line);box-shadow:0 12px 34px -24px rgba(11,59,104,.65)}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:18px;height:var(--nav-h)}
.brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text);letter-spacing:.2px;white-space:nowrap}
.brand:hover{color:var(--brand)}
.brand-mark{
  display:grid;place-items:center;width:34px;height:34px;border-radius:10px;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;font-size:13px;font-weight:700;letter-spacing:.5px;
}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-list a{position:relative;padding:9px 13px;border-radius:8px;font-size:15px;font-weight:500;color:var(--text-2)}
.nav-list a:hover{color:var(--brand);background:rgba(18,91,154,.07)}
.nav-list a.is-active{color:var(--brand);font-weight:600}
.nav-list a.is-active::after{content:"";position:absolute;left:13px;right:13px;bottom:3px;height:2px;border-radius:2px;background:var(--accent)}
.nav-actions{display:flex;align-items:center;gap:10px}
.icon-btn{width:40px;height:40px;border-radius:50%;display:grid;place-items:center;color:var(--text-2);transition:.2s ease}
.icon-btn:hover{background:var(--brand-soft);color:var(--brand)}
.hamburger{display:none;width:40px;height:40px;border-radius:10px;place-items:center;color:var(--brand);background:rgba(18,91,154,.08)}
.hamburger i{font-size:18px}

/* drawer */
.drawer-overlay{position:fixed;inset:0;background:rgba(11,59,104,.42);opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:130}
.drawer-overlay.is-open{opacity:1;visibility:visible}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:var(--surface);z-index:140;
  transform:translateX(102%);transition:transform .28s ease;display:flex;flex-direction:column;
  padding:20px 20px 28px;box-shadow:-20px 0 48px -30px rgba(11,59,104,.6);overflow-y:auto;
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-title{font-size:15px;font-weight:700;color:var(--text)}
.drawer-group{margin-bottom:22px}
.drawer-group h4{font-size:12px;letter-spacing:1px;color:var(--text-3);font-weight:600;margin-bottom:10px}
.drawer-group a{display:block;padding:11px 12px;border-radius:10px;color:var(--text-2);font-size:15px}
.drawer-group a:hover{background:var(--brand-soft);color:var(--brand)}
.drawer-group a.is-active{color:var(--brand);font-weight:600;background:var(--brand-soft)}
.drawer-foot{margin-top:auto;padding-top:16px;border-top:1px solid var(--line)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-btn);
  font-size:16px;font-weight:600;line-height:1;border:1px solid transparent;white-space:nowrap;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 12px 24px -16px rgba(245,135,43,.95)}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand)}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep)}
.btn-sm{height:40px;padding:0 18px;font-size:15px}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none}
.btn-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--brand)}
.btn-link i{font-size:12px;transition:transform .2s ease}
.btn-link:hover i{transform:translateX(3px)}

/* ---------- crumb ---------- */
.crumb-bar{padding-top:calc(var(--nav-h) + 22px)}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13.5px;color:var(--text-3);flex-wrap:wrap}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text-3)}

/* ---------- hero ---------- */
.cat-hero{padding:26px 0 88px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:600;letter-spacing:.5px;
  padding:5px 12px;border-radius:var(--r-pill);margin-bottom:18px;
}
.cat-hero h1{font-size:clamp(30px,4.2vw,44px);line-height:1.25;font-weight:700;letter-spacing:-.4px}
.cat-hero .lead{margin-top:16px;font-size:18px;color:var(--text-2);line-height:1.7}
.cat-hero .hero-desc{margin-top:14px;color:var(--text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px}
.hero-badges li{font-size:13px;color:var(--text-2);background:#fff;border:1px solid var(--line);border-radius:var(--r-pill);padding:6px 14px}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:16/10;max-height:420px;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--shadow)}
.float-card{
  position:absolute;left:38px;bottom:-22px;background:#fff;border-radius:14px;
  padding:16px 20px;box-shadow:var(--shadow-hover);border:1px solid var(--line);min-width:176px;
}
.float-card .num{font-size:26px;font-weight:700;color:var(--accent);line-height:1.2}
.float-card .txt{font-size:13px;color:var(--text-2);margin-top:2px}

/* ---------- section base ---------- */
.section{padding:88px 0}
.section-soft{background:var(--brand-soft)}
.section-white{background:var(--surface)}
.sec-head{max-width:780px;margin-bottom:32px}
.sec-head h2{font-size:clamp(24px,3vw,30px);line-height:1.35;font-weight:700;letter-spacing:-.3px}
.sec-head p{margin-top:14px;color:var(--text-2)}
.tag{display:inline-block;background:var(--brand-soft);color:var(--brand);font-size:12px;font-weight:600;padding:4px 10px;border-radius:var(--r-pill);margin-bottom:12px}

/* ---------- overview 双栏 ---------- */
.overview-copy h2{font-size:clamp(24px,3vw,30px);line-height:1.35;font-weight:700;margin-bottom:22px}
.overview-copy p{color:var(--text-2);margin-bottom:18px}
.overview-copy p:last-child{margin-bottom:0}
.side-card{
  background:var(--brand-soft);border-radius:var(--r-card);padding:28px;border:1px solid #D8E7F4;
}
.side-card h3{font-size:20px;font-weight:600;margin-bottom:18px;color:var(--brand-deep)}
.side-list li{display:flex;gap:12px;padding:11px 0;border-bottom:1px dashed #CFE2F2;color:var(--text-2);font-size:15px}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list i{color:var(--brand);margin-top:6px;font-size:13px}

/* ---------- stat band ---------- */
.stat-band{background:var(--brand-deep);border-radius:24px;padding:44px;color:#fff}
.stat-band .band-head h2{font-size:24px;font-weight:700;line-height:1.4;color:#fff}
.stat-band .band-head p{color:#A9C1D6;font-size:14px;margin-top:8px}
.stat-item{padding:8px 0}
.stat-item .num{font-size:38px;font-weight:700;line-height:1.1;color:var(--accent)}
.stat-item .num small{font-size:15px;font-weight:600;margin-left:6px;color:#fff}
.stat-item .desc{font-size:14px;color:#B9C7D4;margin-top:6px}

/* ---------- 图文交错 ---------- */
.flow-row{padding:64px 0}
.flow-row:first-child{padding-top:0}
.flow-row:last-child{padding-bottom:0}
.flow-row .flow-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--shadow)}
.flow-copy h3{font-size:20px;font-weight:600;margin-bottom:16px;line-height:1.5}
.flow-copy p{color:var(--text-2);margin-bottom:16px}
.flow-points li{display:flex;gap:10px;color:var(--text-2);font-size:15px;margin-bottom:10px}
.flow-points i{color:var(--brand);font-size:13px;margin-top:7px}
.flow-copy .btn-link{margin-top:8px}

/* ---------- checklist ---------- */
.check-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:14px 28px}
.check-item{
  display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease;
}
.check-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.check-item .idx{font-size:14px;font-weight:700;color:var(--brand);flex:0 0 auto}
.check-item p{font-size:15px;color:var(--text-2)}
.check-item strong{display:block;color:var(--text);font-size:15.5px;margin-bottom:4px}

/* ---------- cta ---------- */
.cta-panel{
  background:var(--brand);border-radius:24px;padding:48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;color:#fff;
  box-shadow:0 24px 60px -34px rgba(11,59,104,.7);
}
.cta-panel h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.4;color:#fff}
.cta-panel p{color:#CFE0EF;font-size:15px;margin-top:10px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex:0 0 auto}

/* ---------- footer ---------- */
.site-footer{background:var(--brand-deep);color:#B9C7D4;padding:64px 0 24px;margin-top:88px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-logo{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-logo .logo-mark{
  display:grid;place-items:center;width:32px;height:32px;border-radius:9px;
  background:rgba(255,255,255,.14);color:#fff;font-size:12px;font-weight:700;
}
.site-footer p{font-size:14px;line-height:1.8;color:#B9C7D4}
.site-footer h3{font-size:15px;color:#fff;font-weight:600;margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:#B9C7D4}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:12px;color:#B9C7D4}
.footer-contact i{margin-top:5px;color:#7FA8CC;font-size:13px}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#8FA6BA;
}

/* ---------- misc ---------- */
.img-ph{background:#EEF3F8;background-image:repeating-linear-gradient(0deg,rgba(18,91,154,.06) 0 1px,transparent 1px 14px),repeating-linear-gradient(90deg,rgba(18,91,154,.06) 0 1px,transparent 1px 14px);border-radius:var(--r-img)}
.empty-state{text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--line);border-radius:var(--r-card)}
.empty-state i{font-size:28px;color:var(--text-3)}
.empty-state p{color:var(--text-2);margin:14px 0 18px;font-size:15px}
.skeleton{background:linear-gradient(90deg,#EDF2F7 25%,#E2EAF2 37%,#EDF2F7 63%);background-size:400% 100%;animation:sk 1.4s ease infinite;border-radius:10px}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 20px}
  .section{padding:64px 0}
  .cat-hero{padding:22px 0 64px}
  .nav-list{display:none}
  .hamburger{display:grid}
  .cta-panel{padding:36px;flex-direction:column;align-items:flex-start}
  .stat-band{padding:34px}
  .check-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .flow-row{padding:44px 0}
  .site-footer{margin-top:64px}
}
@media (max-width:640px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .cat-hero{padding:18px 0 48px}
  .cat-hero .lead{font-size:16px}
  .hero-media img{max-height:240px;aspect-ratio:16/10}
  .float-card{left:16px;bottom:-18px;padding:12px 16px;min-width:150px}
  .float-card .num{font-size:22px}
  .hero-actions .btn{width:100%}
  .cta-panel{padding:28px 22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .stat-band{padding:26px 20px;border-radius:18px}
  .stat-item .num{font-size:30px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column}
  .overview-copy{margin-bottom:28px}
}

/* roulang page: article */
:root{
  --brand:#125B9A;
  --brand-deep:#0B3B68;
  --brand-soft:#E9F2FA;
  --accent:#F5872B;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --line:#E2EAF2;
  --text:#16212C;
  --text-2:#5C6C7C;
  --text-3:#8B99A6;
  --success:#1F9D6B;
  --warning:#E0A21A;
  --danger:#D64545;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow:0 1px 2px rgba(11,59,104,.05), 0 14px 34px -16px rgba(11,59,104,.18);
  --shadow-hover:0 2px 4px rgba(11,59,104,.07), 0 22px 44px -18px rgba(11,59,104,.26);
  --pad-section:88px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  text-align:left;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-deep);}
button{font-family:inherit;font-size:inherit;cursor:pointer;}
ul,ol{margin:0;padding-left:1.2em;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);line-height:1.35;letter-spacing:.2px;}
p{margin:0;}
hr{border:0;border-top:1px solid var(--line);}
::selection{background:rgba(18,91,154,.16);}

/* Foundation 默认样式覆盖 */
.button,.button.primary,.button.secondary{background:transparent;border:0;color:inherit;border-radius:0;padding:0;font-size:inherit;}
.callout{background:transparent;border:0;margin:0;padding:0;}
.grid-margin-x{margin-left:-12px;margin-right:-12px;}
.grid-margin-x > .cell{padding-left:12px;padding-right:12px;}
.grid-margin-y > .cell{margin-top:24px;}

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

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border:1px solid transparent;
  border-radius:var(--radius-btn);
  font-size:16px;
  font-weight:600;
  line-height:1;
  white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-sm{height:40px;padding:0 18px;font-size:15px;}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 12px 24px -14px rgba(245,135,43,.9);}
.btn-primary:hover,.btn-primary:focus{background:#e2761c;color:#fff;transform:translateY(-1px);}
.btn-ghost{background:#fff;border-color:var(--brand);color:var(--brand);}
.btn-ghost:hover,.btn-ghost:focus{background:var(--brand-soft);color:var(--brand-deep);border-color:var(--brand);}
.btn-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--brand);background:none;border:0;padding:0;
}
.btn-link i{font-size:14px;transition:transform .2s ease;}
.btn-link:hover i{transform:translateX(3px);}
.btn:focus-visible,a:focus-visible,button:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}

/* 标签 */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  font-size:12px;line-height:1.6;
  background:var(--brand-soft);color:var(--brand);
  border:1px solid transparent;transition:background-color .2s ease,color .2s ease;
}
a.tag:hover{background:#d8e8f7;color:var(--brand-deep);}

/* 顶部导航 */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  backdrop-filter:blur(14px) saturate(150%);
  border-bottom:1px solid rgba(255,255,255,.45);
  box-shadow:0 6px 22px -18px rgba(11,59,104,.6);
  transition:background-color .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:#FFFFFF;
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px -20px rgba(11,59,104,.55);
}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.logo{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;}
.logo-mark{
  width:34px;height:34px;border-radius:10px;
  background:linear-gradient(140deg,var(--brand),var(--brand-deep));
  color:#fff;font-size:13px;font-weight:700;letter-spacing:.5px;
  display:inline-flex;align-items:center;justify-content:center;
}
.logo-text{font-size:18px;font-weight:700;color:var(--text);letter-spacing:.4px;}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-list a{
  position:relative;
  padding:9px 13px;
  border-radius:8px;
  font-size:15px;
  color:var(--text-2);
  transition:color .2s ease,background-color .2s ease;
}
.nav-list a:hover{color:var(--brand);background:var(--brand-soft);}
.nav-list a.is-active{color:var(--brand);font-weight:600;}
.nav-list a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;
  border-radius:2px;background:var(--accent);
}
.header-actions{margin-left:auto;display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;
  border:1px solid var(--line);background:#fff;color:var(--text-2);
  display:inline-flex;align-items:center;justify-content:center;
  transition:color .2s ease,border-color .2s ease,background-color .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:#c6dcee;background:var(--brand-soft);}
.header-cta{display:inline-flex;}
.nav-toggle{
  display:none;
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);transition:transform .2s ease,opacity .2s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;z-index:180;
  background:rgba(11,59,104,.45);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.nav-drawer{
  position:fixed;top:0;right:0;z-index:200;
  width:300px;max-width:86vw;height:100%;
  background:#fff;
  box-shadow:-18px 0 40px -24px rgba(11,59,104,.5);
  transform:translateX(102%);
  transition:transform .28s ease;
  display:flex;flex-direction:column;
  padding:20px 22px 28px;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:18px;border-bottom:1px solid var(--line);}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line);background:#fff;color:var(--text-2);}
.drawer-close:hover{color:var(--brand);background:var(--brand-soft);}
.drawer-links{display:flex;flex-direction:column;gap:4px;padding:18px 0;overflow-y:auto;}
.drawer-links a{padding:12px 12px;border-radius:10px;font-size:15px;color:var(--text-2);}
.drawer-links a:hover{background:var(--brand-soft);color:var(--brand);}
.drawer-links a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.drawer-cta{margin-top:auto;width:100%;}

/* 文章顶部横幅 */
.page-hero{
  position:relative;
  padding:126px 0 68px;
  color:#fff;
  background-image:
    linear-gradient(108deg,rgba(11,59,104,.94) 0%,rgba(18,91,154,.78) 58%,rgba(18,91,154,.6) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(255,255,255,.14) 1px,transparent 1px);
  background-size:22px 22px;
  opacity:.5;
}
.page-hero .container{position:relative;z-index:2;}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:rgba(255,255,255,.75);margin-bottom:22px;
}
.breadcrumb a{color:rgba(255,255,255,.86);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;}
.breadcrumb .sep{opacity:.55;}
.breadcrumb .current{max-width:min(520px,60vw);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;color:#fff;}

.article-head h1{
  font-size:clamp(30px,4.2vw,44px);
  line-height:1.25;
  font-weight:700;
  color:#fff;
  max-width:900px;
  margin:0 0 22px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 20px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.24);
  font-size:14px;
  color:rgba(255,255,255,.82);
}
.article-meta span{display:inline-flex;align-items:center;gap:7px;}
.article-meta i{font-size:13px;opacity:.9;}
.article-meta .tag{background:rgba(255,255,255,.18);color:#fff;border-color:rgba(255,255,255,.3);}

/* 正文区 */
.article-section{padding:56px 0 8px;}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,780px) 300px;
  gap:48px;
  justify-content:center;
  align-items:start;
}
.article-main{min-width:0;}

.article-body{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  padding:44px 46px;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 1.1em;text-align:left;}
.article-body h2{
  font-size:clamp(22px,2.6vw,28px);
  line-height:1.4;
  font-weight:700;
  margin:40px 0 16px;
  padding-left:14px;
  border-left:4px solid var(--brand);
}
.article-body h3{
  font-size:20px;
  line-height:1.5;
  font-weight:600;
  color:var(--brand-deep);
  margin:28px 0 12px;
}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.3em;}
.article-body li{margin-bottom:.5em;}
.article-body strong{font-weight:700;color:var(--brand-deep);}
.article-body blockquote{
  margin:24px 0;
  padding:20px 22px;
  background:var(--brand-soft);
  border-left:3px solid var(--brand);
  border-radius:0 var(--radius-img) var(--radius-img) 0;
  color:var(--text-2);
  font-size:15px;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  border-radius:var(--radius-img);
  margin:24px auto;
  box-shadow:var(--shadow);
}
.article-body figure{margin:26px 0;}
.article-body figcaption,
.article-body .caption{
  text-align:center;font-size:13px;color:var(--text-3);margin-top:10px;
}
.article-body table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  border:1px solid var(--line);
  border-radius:var(--radius-img);
  overflow:hidden;
  margin:24px 0;
  font-size:15px;
}
.article-body thead{background:var(--brand-soft);}
.article-body th{
  padding:12px 16px;text-align:left;font-weight:600;color:var(--brand-deep);
}
.article-body td{padding:12px 16px;border-top:1px solid var(--line);color:var(--text-2);}
.article-body tbody tr:nth-child(even){background:#FAFCFE;}
.article-body a{color:var(--brand);text-decoration:underline;}
.article-body a:hover{color:var(--brand-deep);}
.article-body code{
  background:var(--brand-soft);color:var(--brand-deep);
  padding:2px 6px;border-radius:6px;font-size:14px;
}
.article-body hr{margin:32px 0;}

/* 文末标签与上下篇 */
.post-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:28px;
}
.post-tags-label{font-size:14px;color:var(--text-3);margin-right:2px;}
.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:24px;}
.post-nav-card{
  display:flex;flex-direction:column;gap:8px;
  padding:20px 22px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-nav-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#cfe1f0;}
.post-nav-card .post-nav-label{font-size:13px;color:var(--text-3);display:inline-flex;align-items:center;gap:6px;}
.post-nav-card strong{font-size:16px;font-weight:600;color:var(--text);line-height:1.6;}
.post-nav-card:hover strong{color:var(--brand);}
.post-nav-card.next{text-align:right;align-items:flex-end;}

/* 侧栏 */
.sidebar{display:flex;flex-direction:column;gap:24px;position:sticky;top:96px;}
.widget{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow);
}
.widget-title{
  display:flex;align-items:center;gap:10px;
  font-size:16px;font-weight:700;color:var(--text);margin:0 0 16px;
}
.widget-title::before{
  content:"";width:4px;height:16px;border-radius:3px;background:var(--brand);display:inline-block;
}
.toc-list{list-style:none;padding:0;margin:0;}
.toc-list li{
  display:flex;align-items:flex-start;gap:10px;
  padding:9px 0;
  border-bottom:1px dashed var(--line);
  font-size:14px;color:var(--text-2);
}
.toc-list li:last-child{border-bottom:0;padding-bottom:0;}
.toc-list li::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--accent);
  margin-top:9px;flex:0 0 auto;
}
.hot-list{list-style:none;padding:0;margin:0;}
.hot-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px solid var(--line);}
.hot-list li:last-child{border-bottom:0;padding-bottom:0;}
.hot-list .hot-num{
  flex:0 0 auto;width:22px;height:22px;border-radius:6px;
  background:var(--brand-soft);color:var(--brand);
  font-size:12px;font-weight:700;display:inline-flex;align-items:center;justify-content:center;
  margin-top:3px;
}
.hot-list a{
  font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.hot-list a:hover{color:var(--brand);}
.widget-cta{
  background:linear-gradient(150deg,var(--brand) 0%,var(--brand-deep) 100%);
  border:0;color:#fff;text-align:left;
}
.widget-cta h3{color:#fff;font-size:18px;margin:0 0 10px;}
.widget-cta p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.82);margin:0 0 18px;}
.widget-cta .btn{width:100%;}

/* 空态 */
.empty-state{
  text-align:center;
  padding:56px 24px;
  background:#fff;
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
}
.empty-state i{font-size:34px;color:var(--text-3);display:block;margin-bottom:14px;}
.empty-state p{font-size:16px;color:var(--text-2);margin:0 0 18px;}

/* 相关推荐 */
.related-section{padding:var(--pad-section) 0 0;}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  margin-bottom:32px;
}
.section-head h2{font-size:clamp(24px,3vw,30px);line-height:1.35;margin:0 0 10px;}
.section-head p{font-size:15px;color:var(--text-2);max-width:640px;margin:0;}
.related-grid{align-items:stretch;}
.related-grid > .cell{display:flex;}

.card{
  display:flex;flex-direction:column;
  width:100%;height:100%;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#cfe1f0;}
.card-media{
  position:relative;
  aspect-ratio:16 / 9;
  background:#E7EEF5;
  overflow:hidden;
}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-media img{transform:scale(1.04);}
.card-body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.card-body h3{
  font-size:17px;line-height:1.55;font-weight:600;margin:12px 0 8px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body h3 a{color:var(--text);}
.card-body h3 a:hover{color:var(--brand);}
.card-excerpt{
  font-size:14px;line-height:1.7;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:14px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.card-foot i{color:var(--brand);transition:transform .2s ease;}
.card:hover .card-foot i{transform:translateX(3px);}

/* 收口 CTA */
.cta-section{padding:var(--pad-section) 0;}
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-deep) 100%);
  border-radius:24px;
  padding:44px 48px;
  box-shadow:var(--shadow);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.8vw,28px);line-height:1.4;margin:0 0 10px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15px;margin:0;max-width:620px;}
.cta-band .btn{flex:0 0 auto;}

/* 页脚 */
.site-footer{background:var(--brand-deep);color:#B9C7D4;padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;}
.footer-logo{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:18px;font-weight:700;margin-bottom:16px;
}
.footer-logo .logo-mark{background:linear-gradient(140deg,#1a76c4,var(--brand));}
.site-footer p{font-size:14px;line-height:1.85;color:#B9C7D4;margin:0;}
.site-footer h3{color:#fff;font-size:16px;font-weight:600;margin:0 0 18px;}
.footer-links{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px;}
.footer-links a{color:#B9C7D4;font-size:14px;}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-contact{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:12px;font-size:14px;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;line-height:1.7;}
.footer-contact i{margin-top:5px;color:#7FA4C4;}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:#8FA3B5;
}

/* 响应式 */
@media (max-width:1024px){
  :root{--pad-section:64px;}
  .nav-list{display:none;}
  .nav-toggle{display:inline-flex;}
  .header-cta{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;}
  .sidebar{display:none;}
  .article-body{padding:36px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-hero{padding:118px 0 56px;}
}
@media (max-width:640px){
  :root{--pad-section:48px;}
  .container{padding-left:16px;padding-right:16px;}
  body{font-size:15px;}
  .header-inner{height:64px;gap:14px;}
  .logo-text{font-size:16px;}
  .page-hero{padding:104px 0 44px;}
  .breadcrumb .current{max-width:62vw;}
  .article-body{padding:26px 20px;line-height:1.85;}
  .article-body h2{margin-top:32px;padding-left:10px;border-left-width:3px;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav-card.next{text-align:left;align-items:flex-start;}
  .section-head{flex-direction:column;align-items:flex-start;gap:14px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px 24px;}
  .cta-band .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .article-meta{gap:8px 16px;}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --brand:#125B9A;
  --brand-deep:#0B3B68;
  --brand-soft:#E9F2FA;
  --accent:#F5872B;
  --accent-deep:#E2761C;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --line:#E2EAF2;
  --text:#16212C;
  --text-2:#5C6C7C;
  --text-3:#8B99A6;
  --ok:#1F9D6B;
  --warn:#E0A21A;
  --err:#D64545;
  --r-lg:16px;
  --r-xl:24px;
  --r-md:10px;
  --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(11,59,104,.05);
  --shadow:0 1px 2px rgba(11,59,104,.05),0 14px 34px -16px rgba(11,59,104,.18);
  --shadow-lg:0 2px 6px rgba(11,59,104,.06),0 24px 48px -20px rgba(11,59,104,.3);
  --ease:200ms ease;
  --nav-h:76px;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--brand-deep);}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit;}
table{border-collapse:collapse;width:100%;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

/* 覆盖 Foundation 默认味道 */
body,.button,input,select,textarea{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,sans-serif;}
a.button,button.button{background:none;border-radius:0;padding:0;margin:0;}
ul.menu,ul.menu li{margin:0;}
h1,h2,h3,h4{line-height:1.35;color:var(--text);font-weight:700;}

/* ============ 容器 ============ */
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
@media (max-width:639px){.container{padding:0 16px;}}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-md);
  font-size:16px;font-weight:600;border:1px solid transparent;white-space:nowrap;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;box-shadow:0 10px 24px -14px rgba(245,135,43,.95);}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep);border-color:var(--brand-deep);}
.btn-sm{height:40px;padding:0 18px;font-size:15px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 标签 / 徽章 ============ */
.eyebrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;font-weight:600;letter-spacing:.6px;
  color:var(--brand);background:var(--brand-soft);
  padding:5px 12px;border-radius:var(--r-pill);
}
.eyebrow--light{background:rgba(255,255,255,.16);color:#fff;}
.tag{
  display:inline-flex;align-items:center;font-size:12px;font-weight:600;
  color:var(--brand);background:var(--brand-soft);
  padding:4px 10px;border-radius:var(--r-pill);
}
.tag--accent{color:#fff;background:var(--accent);}

/* ============ 顶部玻璃导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(255,255,255,.55);
  backdrop-filter:blur(14px) saturate(150%);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  border-bottom:1px solid rgba(255,255,255,.45);
  box-shadow:0 1px 2px rgba(11,59,104,.04);
  transition:background var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.site-header.is-scrolled{
  background:#FFFFFF;
  border-bottom-color:var(--line);
  box-shadow:0 8px 26px -16px rgba(11,59,104,.34);
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--nav-h);}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--text);letter-spacing:.2px;}
.brand:hover{color:var(--text);}
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(135deg,var(--brand),var(--brand-deep));
  color:#fff;font-size:13px;font-weight:700;letter-spacing:.5px;
  box-shadow:0 6px 16px -9px rgba(18,91,154,.85);
}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-list a{
  position:relative;padding:8px 13px;font-size:15px;color:var(--text-2);
  border-radius:8px;transition:color var(--ease),background var(--ease);
}
.nav-list a:hover{color:var(--brand);background:rgba(18,91,154,.07);}
.nav-list a.is-active{color:var(--brand);font-weight:600;}
.nav-list a.is-active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:1px;height:2px;
  border-radius:2px;background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:10px;}
.icon-btn{
  width:40px;height:40px;border-radius:50%;flex:0 0 auto;
  border:1px solid var(--line);background:#fff;color:var(--text-2);
  display:inline-flex;align-items:center;justify-content:center;
  transition:color var(--ease),border-color var(--ease),background var(--ease);
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft);}

.hamburger{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:#fff;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.hamburger span{display:block;width:18px;height:2px;border-radius:2px;background:var(--text);}

/* 移动端抽屉 */
.drawer-mask{
  position:fixed;inset:0;z-index:190;background:rgba(11,59,104,.4);
  opacity:0;visibility:hidden;transition:opacity .26s ease,visibility .26s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;z-index:200;
  width:min(320px,86vw);background:#fff;
  border-left:1px solid var(--line);
  box-shadow:-24px 0 46px -26px rgba(11,59,104,.5);
  transform:translateX(105%);transition:transform .28s ease;
  display:flex;flex-direction:column;
}
.drawer.is-open{transform:none;}
.drawer-head{
  display:flex;align-items:center;justify-content:space-between;
  padding:18px 20px;border-bottom:1px solid var(--line);
}
.drawer-nav{padding:14px 12px;display:flex;flex-direction:column;gap:2px;overflow-y:auto;}
.drawer-nav a{
  padding:13px 14px;border-radius:10px;font-size:15px;color:var(--text-2);
  transition:background var(--ease),color var(--ease);
}
.drawer-nav a:hover{background:var(--brand-soft);color:var(--brand);}
.drawer-nav a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.drawer-cta{margin-top:auto;padding:18px 20px 26px;border-top:1px solid var(--line);}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:20px;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb span{color:#C3CFDA;}
.breadcrumb em{font-style:normal;color:var(--text-2);font-weight:600;}

/* ============ 页面头部 ============ */
.page-hero{
  position:relative;overflow:hidden;
  padding:calc(var(--nav-h) + 56px) 0 56px;
  background:linear-gradient(180deg,#FFFFFF 0%,#F5F8FB 100%);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:radial-gradient(circle at 1px 1px,rgba(18,91,154,.11) 1px,transparent 0);
  background-size:26px 26px;
}
.page-hero .container{position:relative;z-index:1;}
.page-hero h1{
  font-size:clamp(30px,4.2vw,44px);line-height:1.25;font-weight:700;
  letter-spacing:-.5px;max-width:880px;
}
.page-hero-lead{
  margin-top:18px;font-size:17px;line-height:1.8;color:var(--text-2);max-width:720px;
}
.chip-row{
  display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:#fff;
  font-size:14px;color:var(--text-2);
}
.chip.is-on{
  background:var(--brand);border-color:var(--brand);color:#fff;font-weight:600;
  box-shadow:0 10px 22px -14px rgba(18,91,154,.95);
}

/* ============ 通用板块 ============ */
.section{padding:88px 0;}
.section--white{background:var(--surface);}
.section--tint{background:var(--brand-soft);}
@media (max-width:1024px){.section{padding:64px 0;}}
@media (max-width:639px){.section{padding:48px 0;}}

.sec-head{max-width:760px;margin-bottom:36px;}
.sec-head h2{font-size:clamp(24px,2.6vw,30px);line-height:1.35;font-weight:700;letter-spacing:-.3px;}
.sec-head p{margin-top:14px;color:var(--text-2);font-size:16px;}

/* ============ 卡片矩阵 ============ */
.matrix{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;align-items:stretch;
}
@media (max-width:1024px){.matrix{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:639px){.matrix{grid-template-columns:1fr;gap:16px;}}

.m-card{
  display:flex;flex-direction:column;gap:14px;
  padding:26px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.m-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#D5E3F0;}
.m-icon{
  width:46px;height:46px;border-radius:13px;flex:0 0 auto;
  display:grid;place-items:center;
  background:var(--brand-soft);color:var(--brand);font-size:18px;
}
.m-card h3{font-size:20px;font-weight:600;line-height:1.5;}
.m-list{display:flex;flex-direction:column;gap:8px;margin-top:2px;}
.m-list li{
  position:relative;padding-left:16px;
  font-size:15px;line-height:1.75;color:var(--text-2);
}
.m-list li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:5px;height:5px;border-radius:50%;background:var(--brand);opacity:.7;
}

.link-arrow{
  display:inline-flex;align-items:center;gap:8px;
  margin-top:auto;padding-top:6px;
  font-size:15px;font-weight:600;color:var(--brand);
}
.link-arrow i{font-size:12px;transition:transform var(--ease);}
.link-arrow:hover i{transform:translateX(3px);}
.link-arrow--light{color:#fff;}
.link-arrow--light:hover{color:#fff;}

/* 高亮通栏卡 */
.m-feature{
  grid-column:1 / -1;
  display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);
  background:var(--brand-deep);color:#fff;
  border-radius:var(--r-lg);overflow:hidden;
  box-shadow:var(--shadow);
}
.m-feature-media{position:relative;min-height:280px;}
.m-feature-media img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.m-feature-body{padding:36px 40px;display:flex;flex-direction:column;gap:18px;}
.m-feature-body h3{color:#fff;font-size:23px;line-height:1.45;font-weight:700;}
.m-feature-body p{color:rgba(255,255,255,.8);font-size:15px;}
.steps{display:flex;flex-direction:column;gap:16px;}
.steps li{display:flex;gap:14px;align-items:flex-start;}
.step-no{
  flex:0 0 auto;width:34px;height:34px;border-radius:50%;
  display:grid;place-items:center;font-size:13px;font-weight:700;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.3);color:#fff;
}
.steps strong{display:block;font-size:15px;font-weight:600;color:#fff;}
.steps span.txt{display:block;font-size:14px;color:rgba(255,255,255,.75);line-height:1.7;}
@media (max-width:1024px){
  .m-feature{grid-template-columns:1fr;}
  .m-feature-media{min-height:220px;aspect-ratio:16/9;}
  .m-feature-body{padding:28px;}
}
@media (max-width:639px){
  .m-feature-media{min-height:180px;}
  .m-feature-body{padding:22px;}
  .m-feature-body h3{font-size:20px;}
}

/* ============ 画面预览 ============ */
.media-rail{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.media-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:box-shadow var(--ease),transform var(--ease);
  display:flex;flex-direction:column;
}
.media-card:hover{transform:translateY(-2px);box-shadow:var(--shadow);}
.media-card img{width:100%;aspect-ratio:16/9;object-fit:cover;background:#EDF2F7;}
.media-card figcaption{padding:18px 20px 22px;}
.media-card figcaption strong{display:block;font-size:16px;font-weight:600;margin-bottom:6px;}
.media-card figcaption span{display:block;font-size:14px;line-height:1.75;color:var(--text-2);}
@media (max-width:1024px){.media-rail{grid-template-columns:repeat(2,minmax(0,1fr));}}
@media (max-width:639px){
  .media-rail{
    display:flex;gap:14px;overflow-x:auto;
    scroll-snap-type:x mandatory;
    margin:0 -16px;padding:0 16px 10px;
  }
  .media-card{flex:0 0 78%;scroll-snap-align:start;}
}

/* ============ 对照表 ============ */
.table-wrap{
  overflow-x:auto;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow-sm);
}
.cmp-table{min-width:700px;font-size:15px;}
.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-soft);color:var(--brand-deep);
  font-size:14px;font-weight:600;letter-spacing:.3px;white-space:nowrap;
}
.cmp-table tbody tr:nth-child(even){background:#FAFCFE;}
.cmp-table tbody tr:last-child td{border-bottom:0;}
.cmp-table td:first-child{font-weight:600;color:var(--text);white-space:nowrap;}
.cmp-table td{color:var(--text-2);}

.conclusion-bar{
  display:flex;align-items:flex-start;gap:12px;
  margin-top:22px;padding:18px 22px;
  background:var(--brand-soft);border-radius:14px;
  color:var(--brand-deep);font-size:15px;line-height:1.75;
}
.conclusion-bar i{margin-top:.4em;color:var(--brand);}
@media (max-width:639px){.conclusion-bar{padding:16px;font-size:14px;}}

/* ============ 提示区（两栏不对称） ============ */
.note-layout{align-items:flex-start;}
.note-side h2{font-size:clamp(24px,2.6vw,30px);line-height:1.35;margin-top:14px;}
.note-side p{margin-top:14px;color:var(--text-2);font-size:15px;}
@media (min-width:1025px){
  .note-side{position:sticky;top:calc(var(--nav-h) + 28px);}
}
.note-list{display:flex;flex-direction:column;gap:14px;}
.note-item{
  display:flex;gap:16px;padding:20px 22px;
  background:var(--bg);border:1px solid var(--line);border-radius:var(--r-lg);
  transition:box-shadow var(--ease),transform var(--ease),border-color var(--ease);
}
.note-item:hover{transform:translateY(-2px);box-shadow:var(--shadow);border-color:#D5E3F0;}
.note-item .m-icon{width:40px;height:40px;border-radius:11px;font-size:16px;}
.note-item h3{font-size:17px;font-weight:600;margin-bottom:4px;}
.note-item p{font-size:15px;color:var(--text-2);line-height:1.75;}
@media (max-width:639px){
  .note-item{padding:18px;gap:12px;}
}

/* ============ 收口 CTA ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:var(--brand);color:#fff;
  border-radius:var(--r-xl);padding:46px 48px;
  box-shadow:var(--shadow);
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,28px);line-height:1.4;font-weight:700;}
.cta-band p{margin-top:10px;color:rgba(255,255,255,.82);font-size:15px;}
.cta-band-actions{display:flex;gap:12px;flex:0 0 auto;}
.cta-band-actions .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.cta-band-actions .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}
@media (max-width:1024px){
  .cta-band{flex-direction:column;align-items:flex-start;padding:36px 32px;gap:24px;}
}
@media (max-width:639px){
  .cta-band{padding:28px 22px;border-radius:18px;}
  .cta-band-actions{width:100%;flex-direction:column;}
  .cta-band-actions .btn{width:100%;}
}

/* ============ 页脚 ============ */
.site-footer{background:var(--brand-deep);color:#B9C7D4;padding:72px 0 0;font-size:15px;}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;padding-bottom:48px;
}
.footer-logo{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:19px;font-weight:700;margin-bottom:16px;
}
.footer-logo .logo-mark{
  background:rgba(255,255,255,.14);box-shadow:none;
  border:1px solid rgba(255,255,255,.22);
}
.site-footer p{line-height:1.85;color:#B9C7D4;font-size:14.5px;}
.site-footer h3{
  color:#fff;font-size:16px;font-weight:600;margin-bottom:18px;
}
.footer-links,.footer-contact{display:flex;flex-direction:column;gap:11px;}
.footer-links a,.footer-contact a{color:#B9C7D4;font-size:14.5px;}
.footer-links a:hover,.footer-contact a:hover{color:#fff;text-decoration:underline;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;line-height:1.7;font-size:14.5px;}
.footer-contact i{margin-top:.42em;color:#7FA3C4;}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  padding:22px 0 28px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13.5px;color:#8FA5B8;
}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .site-footer{padding-top:56px;}
}
@media (max-width:639px){
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .site-footer{padding-top:44px;}
  .footer-bottom{flex-direction:column;gap:6px;}
}

/* ============ 图片占位 / 空态 ============ */
.img-ph{
  background:#EDF2F7;border-radius:14px;
  background-image:linear-gradient(rgba(18,91,154,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(18,91,154,.05) 1px,transparent 1px);
  background-size:22px 22px;
}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:12px;padding:48px 24px;text-align:center;
  border:1px dashed var(--line);border-radius:var(--r-lg);background:#fff;
}
.empty-state i{font-size:28px;color:var(--text-3);}
.empty-state p{color:var(--text-2);font-size:15px;}

/* ============ 移动端导航断点 ============ */
@media (max-width:1023px){
  .nav-list{display:none;}
  .nav-actions .btn{display:none;}
  .hamburger{display:flex;}
  .nav-wrap{gap:12px;}
  .brand{font-size:17px;}
  .logo-mark{width:34px;height:34px;border-radius:10px;font-size:12px;}
}
@media (max-width:639px){
  .page-hero{padding:calc(var(--nav-h) + 34px) 0 40px;}
  .page-hero-lead{font-size:16px;}
  .chip-row{margin-top:22px;}
  .chip{padding:7px 13px;font-size:13px;}
}

/* roulang page: category2 */
:root{
  --brand:#125B9A;
  --brand-deep:#0B3B68;
  --brand-soft:#E9F2FA;
  --accent:#F5872B;
  --accent-deep:#DE7118;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --line:#E2EAF2;
  --text:#16212C;
  --text-2:#5C6C7C;
  --text-3:#8B99A6;
  --ok:#1F9D6B;
  --warn:#E0A21A;
  --err:#D64545;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-card:0 1px 2px rgba(11,59,104,.05),0 14px 34px -16px rgba(11,59,104,.18);
  --shadow-hover:0 2px 4px rgba(11,59,104,.06),0 22px 44px -18px rgba(11,59,104,.28);
  --shadow-nav:0 8px 28px -20px rgba(11,59,104,.55);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
h1,h2,h3,h4,h5{
  margin:0;
  font-family:var(--font);
  color:var(--text);
  line-height:1.35;
  font-weight:700;
  letter-spacing:.01em;
}
p{margin:0 0 1em;line-height:1.85;text-align:left}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;height:auto;border-style:none}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease}
a:hover{color:var(--brand-deep)}
button{font-family:var(--font);font-size:inherit;border:0;background:none;cursor:pointer;color:inherit}
input{font-family:var(--font)}
table{border-collapse:collapse;width:100%}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:88px 0}
.section-white{background:var(--surface)}
.section-muted{background:var(--brand-soft)}
.section-head{max-width:780px;margin-bottom:32px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.section-head.center .section-desc{margin-left:auto;margin-right:auto}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:600;
  letter-spacing:.08em;
}
.section h2{font-size:clamp(24px,2.6vw,30px);margin:16px 0 14px}
.section-desc{color:var(--text-2);font-size:16px;margin:0;max-width:720px}

/* 导航 */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:100;
  background:rgba(255,255,255,.55);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  backdrop-filter:blur(14px) saturate(150%);
  border-bottom:1px solid rgba(255,255,255,.45);
  box-shadow:var(--shadow-nav);
  transition:background-color .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:#FFFFFF;
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px -22px rgba(11,59,104,.55);
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:20px;
  height:72px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:18px;
  font-weight:700;
  color:var(--text);
  flex:0 0 auto;
}
.logo:hover{color:var(--brand)}
.logo-mark{
  width:36px;height:36px;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  display:grid;
  place-items:center;
  font-size:13px;
  font-weight:700;
  letter-spacing:.06em;
}
.nav-list{
  display:flex;
  align-items:center;
  gap:4px;
  flex:1 1 auto;
  justify-content:center;
  margin-left:8px;
}
.nav-list a{
  position:relative;
  display:inline-block;
  padding:10px 13px;
  border-radius:8px;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  white-space:nowrap;
}
.nav-list a:hover{color:var(--brand);background:var(--brand-soft)}
.nav-list a.is-active{color:var(--brand);font-weight:600}
.nav-list a.is-active::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:3px;
  height:2px;
  border-radius:2px;
  background:var(--accent);
}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;
  display:grid;
  place-items:center;
  border-radius:10px;
  border:1px solid var(--line);
  background:#fff;
  color:var(--text-2);
  transition:all .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:rgba(18,91,154,.4);background:var(--brand-soft)}
.nav-toggle{display:none}

/* 搜索面板 */
.search-panel{
  position:absolute;
  top:calc(100% + 10px);
  right:24px;
  width:min(360px,calc(100vw - 32px));
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  box-shadow:var(--shadow-card);
  padding:16px;
  display:none;
}
.search-panel.is-open{display:block}
.search-form{display:flex;gap:10px}
.search-form input{
  flex:1 1 auto;
  height:44px;
  padding:0 14px;
  border:1px solid var(--line);
  border-radius:10px;
  font-size:15px;
  color:var(--text);
  background:#fff;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form input:focus{
  outline:none;
  border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(18,91,154,.15);
}
.search-tip{margin:10px 0 0;font-size:12.5px;color:var(--text-3)}

/* 按钮 */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  font-size:15.5px;
  font-weight:600;
  line-height:1;
  transition:background-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{
  background:var(--accent);
  color:#fff;
  box-shadow:0 12px 26px -14px rgba(245,135,43,.85);
}
.btn-primary:hover{background:var(--accent-deep);color:#fff;transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:#fff;
  color:var(--brand);
  border:1px solid var(--brand);
}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-deep)}
.btn-sm{height:40px;padding:0 18px;font-size:14.5px}
.btn-link{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:var(--brand);
  font-weight:600;
  font-size:15px;
}
.btn-link i{font-size:13px;transition:transform .2s ease}
.btn-link:hover{color:var(--brand-deep)}
.btn-link:hover i{transform:translateX(3px)}

/* 页面首屏 */
.page-hero{
  position:relative;
  padding:124px 0 72px;
  background:var(--surface);
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(18,91,154,.055) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(18,91,154,.055) 1px,transparent 1px);
  background-size:32px 32px;
  -webkit-mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.35) 55%,transparent 85%);
  mask-image:linear-gradient(180deg,#000 0%,rgba(0,0,0,.35) 55%,transparent 85%);
  pointer-events:none;
}
.page-hero > .container{position:relative;z-index:1}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-3);
  margin-bottom:28px;
}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{color:var(--text-3)}
.breadcrumb .current{color:var(--text);font-weight:600}

.hero-grid{margin-left:-16px;margin-right:-16px}
.hero-grid > .cell{margin:0;padding-left:16px;padding-right:16px}
.hero-copy h1{
  font-size:clamp(30px,4.2vw,44px);
  line-height:1.25;
  margin:16px 0 18px;
}
.hero-sub{
  font-size:17px;
  color:var(--text-2);
  max-width:560px;
  margin-bottom:0;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin:30px 0 24px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px}
.hero-badges li{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-size:13px;
  font-weight:500;
}
.hero-badges i{color:var(--accent);font-size:12px}

.hero-media{position:relative}
.hero-img{
  width:100%;
  height:396px;
  object-fit:cover;
  border-radius:var(--radius-img);
  box-shadow:var(--shadow-card);
  background:#EEF3F8;
}
.float-card{
  position:absolute;
  left:-10px;
  bottom:-20px;
  display:flex;
  align-items:center;
  gap:14px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  padding:14px 20px;
  box-shadow:var(--shadow-card);
}
.float-num{font-size:26px;font-weight:700;color:var(--brand);line-height:1.1}
.float-label{font-size:13px;color:var(--text-2);line-height:1.5}

/* 流程时间轴 */
.step-list{position:relative;max-width:920px}
.step-list::before{
  content:"";
  position:absolute;
  left:23px;top:14px;bottom:26px;
  width:2px;
  background:linear-gradient(180deg,var(--brand) 0%,rgba(18,91,154,.14) 100%);
}
.step-item{position:relative;display:flex;gap:22px;padding-bottom:28px}
.step-item:last-child{padding-bottom:0}
.step-num{
  position:relative;
  z-index:1;
  flex:0 0 48px;
  width:48px;height:48px;
  border-radius:50%;
  background:var(--brand);
  color:#fff;
  display:grid;
  place-items:center;
  font-size:17px;
  font-weight:700;
  box-shadow:0 10px 22px -12px rgba(18,91,154,.95);
}
.step-body{
  flex:1 1 auto;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:24px 26px;
  transition:transform .2s ease,box-shadow .2s ease;
}
.step-body:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.step-body h3{font-size:19px;font-weight:600;margin-bottom:8px}
.step-body p{color:var(--text-2);font-size:15.5px;margin-bottom:10px}
.step-body p:last-child{margin-bottom:0}
.dot-list{margin-top:4px}
.dot-list li{
  position:relative;
  padding-left:18px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.8;
}
.dot-list li::before{
  content:"";
  position:absolute;
  left:2px;top:.78em;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--accent);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.tag{
  display:inline-block;
  padding:4px 10px;
  border-radius:999px;
  background:var(--brand-soft);
  color:var(--brand);
  font-size:12px;
  font-weight:500;
}

/* 对比表 */
.table-wrap{
  overflow-x:auto;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
}
.compare-table{min-width:760px}
.compare-table caption{
  caption-side:top;
  text-align:left;
  padding:18px 22px 0;
  font-size:13px;
  color:var(--text-3);
}
.compare-table th{
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-size:14px;
  font-weight:600;
  text-align:left;
  padding:16px 22px;
  white-space:nowrap;
}
.compare-table td{
  padding:16px 22px;
  font-size:15px;
  color:var(--text-2);
  border-top:1px solid var(--line);
}
.compare-table tbody tr:nth-child(even){background:#FBFDFF}
.compare-table td strong{color:var(--text);font-weight:600}
.conclusion-bar{
  display:flex;
  align-items:flex-start;
  gap:14px;
  margin-top:24px;
  padding:20px 24px;
  border-radius:16px;
  background:var(--brand-soft);
  color:var(--brand-deep);
  font-size:15.5px;
  line-height:1.8;
}
.conclusion-bar i{color:var(--accent);margin-top:5px;font-size:16px}
.conclusion-bar p{margin:0;color:var(--brand-deep)}

/* 场景图文 */
.scene-grid{margin-left:-16px;margin-right:-16px}
.scene-grid > .cell{margin:0;padding-left:16px;padding-right:16px}
.scene-img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--radius-img);
  box-shadow:var(--shadow-card);
  background:#EEF3F8;
}
.scene-list{display:grid;gap:16px}
.scene-item{
  display:flex;
  gap:16px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px 22px;
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease;
}
.scene-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover)}
.scene-icon{
  flex:0 0 42px;
  width:42px;height:42px;
  border-radius:12px;
  background:var(--brand-soft);
  color:var(--brand);
  display:grid;
  place-items:center;
  font-size:17px;
}
.scene-item h3{font-size:17px;font-weight:600;margin-bottom:6px}
.scene-item p{margin:0;font-size:15px;color:var(--text-2)}

/* FAQ */
.faq{max-width:860px;margin:0 auto}
.faq-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:14px;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{border-color:rgba(18,91,154,.35);box-shadow:var(--shadow-card)}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  position:relative;
  padding:20px 56px 20px 24px;
  font-size:16.5px;
  font-weight:600;
  color:var(--text);
  border-left:3px solid transparent;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  right:22px;top:50%;
  transform:translateY(-50%);
  font-size:13px;
  color:var(--brand);
  transition:transform .2s ease;
}
.faq-item summary:hover{background:rgba(233,242,250,.6)}
.faq-item[open] summary{
  background:var(--brand-soft);
  border-left-color:var(--brand);
  color:var(--brand-deep);
}
.faq-item[open] summary::after{transform:translateY(-50%) rotate(180deg)}
.faq-a{
  padding:18px 24px 22px;
  border-top:1px solid var(--line);
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.85;
}
.faq-a p:last-child{margin-bottom:0}

/* 收口 CTA */
.cta-section{padding:0 0 88px}
.cta-block{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  background:var(--brand);
  border-radius:24px;
  padding:44px 48px;
  color:#fff;
}
.cta-block::after{
  content:"";
  position:absolute;
  right:-70px;top:-70px;
  width:230px;height:230px;
  border-radius:50%;
  background:rgba(255,255,255,.07);
  pointer-events:none;
}
.cta-block h2{color:#fff;font-size:clamp(22px,2.4vw,28px);margin:0 0 10px}
.cta-block p{color:rgba(255,255,255,.84);margin:0;max-width:560px;font-size:15.5px}
.cta-block .cta-action{flex:0 0 auto;position:relative;z-index:1}

/* 页脚 */
.site-footer{
  background:var(--brand-deep);
  color:#B9C7D4;
  padding:64px 0 24px;
  font-size:14.5px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.3fr;
  gap:40px;
}
.footer-logo{
  display:flex;
  align-items:center;
  gap:10px;
  color:#fff;
  font-size:18px;
  font-weight:700;
  margin-bottom:14px;
}
.footer-logo .logo-mark{background:var(--accent);color:#fff}
.site-footer p{color:#B9C7D4;line-height:1.85;margin:0}
.site-footer h3{font-size:15px;color:#fff;margin:0 0 16px;font-weight:600}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#B9C7D4}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;line-height:1.7}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  font-size:13.5px;
  color:#8FA3B5;
}

/* 抽屉 */
.drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:min(330px,86vw);
  background:#fff;
  z-index:130;
  padding:24px;
  overflow-y:auto;
  transform:translateX(102%);
  transition:transform .28s ease;
  box-shadow:-20px 0 50px -30px rgba(11,59,104,.6);
}
.drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.drawer-group{margin-bottom:22px}
.drawer-group h4{font-size:13px;color:var(--text-3);letter-spacing:.08em;margin:0 0 10px;font-weight:600}
.drawer-group a{
  display:block;
  padding:12px 14px;
  border-radius:10px;
  color:var(--text-2);
  font-size:15px;
  margin-bottom:6px;
}
.drawer-group a:hover,.drawer-group a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.drawer-cta{width:100%;margin-top:8px}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(11,59,104,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:120;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* 响应式 */
@media (max-width:1024px){
  .section{padding:64px 0}
  .page-hero{padding:110px 0 60px}
  .hero-img{height:320px}
  .float-card{left:12px;bottom:12px}
  .nav-list,.nav-actions .icon-btn.search-btn,.nav-actions .btn{display:none}
  .nav-toggle{display:grid}
  .nav-inner{justify-content:space-between}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-section{padding-bottom:64px}
  .cta-block{padding:36px 32px}
}
@media (max-width:760px){
  .cta-block{flex-direction:column;align-items:flex-start}
  .cta-block .cta-action{width:100%}
  .cta-block .cta-action .btn{width:100%}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .section{padding:48px 0}
  .page-hero{padding:100px 0 48px}
  .hero-img{height:240px}
  .hero-actions .btn{width:100%}
  .hero-media{margin-top:8px}
  .step-list::before{left:19px}
  .step-item{gap:16px}
  .step-num{flex:0 0 40px;width:40px;height:40px;font-size:15px}
  .step-body{padding:20px}
  .scene-item{padding:18px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-bottom{flex-direction:column;gap:6px}
  .cta-section{padding-bottom:48px}
  .cta-block{padding:28px 24px;border-radius:20px}
  .search-panel{right:16px}
}

/* roulang page: category4 */
:root{
  --brand:#125B9A;
  --brand-deep:#0B3B68;
  --brand-soft:#E9F2FA;
  --accent:#F5872B;
  --accent-deep:#DD7420;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --line:#E2EAF2;
  --text:#16212C;
  --text-2:#5C6C7C;
  --text-3:#8B99A6;
  --success:#1F9D6B;
  --warn:#E0A21A;
  --error:#D64545;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --radius-pill:999px;
  --shadow:0 1px 2px rgba(11,59,104,.05), 0 14px 34px -16px rgba(11,59,104,.18);
  --shadow-hover:0 2px 4px rgba(11,59,104,.07), 0 22px 44px -18px rgba(11,59,104,.28);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  text-align:left;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--radius-img);}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease;}
a:hover{color:var(--brand-deep);}
h1,h2,h3,h4,figure,blockquote,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.container-narrow{max-width:980px;padding:0 24px;margin:0 auto;}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:16px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;transition:all .2s ease;white-space:nowrap;
}
.btn-sm{height:40px;padding:0 18px;font-size:15px;}
.btn-primary{background:var(--accent);color:#fff;border-color:var(--accent);box-shadow:0 10px 22px -12px rgba(245,135,43,.9);}
.btn-primary:hover,.btn-primary:focus{background:var(--accent-deep);border-color:var(--accent-deep);color:#fff;transform:translateY(-1px);}
.btn-secondary{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-secondary:hover,.btn-secondary:focus{background:var(--brand-soft);color:var(--brand-deep);border-color:var(--brand-deep);}
.btn-ghost{background:transparent;color:var(--brand);border-color:transparent;padding:0 8px;height:auto;}
.btn-ghost i{transition:transform .2s ease;font-size:14px;}
.btn-ghost:hover i{transform:translateX(3px);}
.link-arrow{
  display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:15px;color:var(--brand);
}
.link-arrow i{font-size:13px;transition:transform .2s ease;}
.link-arrow:hover i{transform:translateX(3px);}
.btn:disabled,.btn.is-disabled{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}

/* ===== 标签 / 徽章 ===== */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-soft);color:var(--brand);
  font-size:12px;line-height:1;padding:6px 12px;border-radius:var(--radius-pill);
  font-weight:600;letter-spacing:.02em;
}
.tag-line{background:transparent;border:1px solid var(--line);color:var(--text-2);}
.badge-soft{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.72);border:1px solid rgba(18,91,154,.14);
  color:var(--brand-deep);font-size:13px;font-weight:600;backdrop-filter:blur(6px);
}

/* ===== 导航 ===== */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:rgba(255,255,255,.55);
  backdrop-filter:blur(14px) saturate(150%);
  -webkit-backdrop-filter:blur(14px) saturate(150%);
  border-bottom:1px solid rgba(255,255,255,.45);
  box-shadow:0 8px 30px -20px rgba(11,59,104,.45);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:#FFFFFF;
  border-bottom:1px solid var(--line);
  box-shadow:0 10px 30px -18px rgba(11,59,104,.35);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  height:72px;
}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--brand-deep);letter-spacing:.01em;}
.brand:hover{color:var(--brand);}
.logo-mark{
  width:36px;height:36px;border-radius:11px;flex:0 0 36px;
  background:linear-gradient(150deg,var(--brand),var(--brand-deep));
  color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:800;letter-spacing:.04em;
}
.nav-list{display:flex;align-items:center;gap:4px;flex-wrap:nowrap;}
.nav-list a{
  position:relative;display:inline-block;
  padding:10px 14px;border-radius:8px;
  font-size:15px;font-weight:500;color:var(--text-2);
  transition:color .2s ease,background .2s ease;
}
.nav-list a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;
  border-radius:2px;background:var(--accent);transform:scaleX(0);transform-origin:center;
  transition:transform .2s ease;
}
.nav-list a:hover{color:var(--brand);background:var(--brand-soft);}
.nav-list a:hover::after{transform:scaleX(1);}
.nav-list a.is-active{color:var(--brand-deep);font-weight:700;}
.nav-list a.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:40px;height:40px;border-radius:10px;border:1px solid var(--line);
  background:#fff;color:var(--text-2);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:all .2s ease;
}
.icon-btn:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-soft);}
.hamburger{display:none;}

/* 移动抽屉 */
.drawer-mask{
  position:fixed;inset:0;background:rgba(11,59,104,.42);
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;z-index:130;
}
.drawer-mask.is-open{opacity:1;visibility:visible;}
.drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);z-index:140;
  background:#fff;box-shadow:-20px 0 50px -25px rgba(11,59,104,.5);
  transform:translateX(105%);transition:transform .28s ease;
  display:flex;flex-direction:column;padding:22px 20px 26px;overflow-y:auto;
}
.drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer-group{margin-bottom:22px;}
.drawer-group h4{font-size:12px;color:var(--text-3);letter-spacing:.12em;font-weight:700;margin-bottom:10px;}
.drawer-group a{
  display:block;padding:12px 12px;border-radius:10px;color:var(--text);font-size:15px;font-weight:500;
}
.drawer-group a:hover{background:var(--brand-soft);color:var(--brand-deep);}
.drawer-group a.is-active{background:var(--brand-soft);color:var(--brand-deep);font-weight:700;}
.drawer-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);}

/* ===== 面包屑 ===== */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--line);padding:16px 0;margin-top:72px;}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--text-3);}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--text);font-weight:600;max-width:60vw;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ===== Hero ===== */
.page-hero{
  background:
    radial-gradient(900px 420px at 88% -10%, rgba(18,91,154,.10), transparent 62%),
    linear-gradient(180deg,#FFFFFF 0%, var(--bg) 100%);
  padding:56px 0 72px;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.hero-copy h1{
  font-size:clamp(30px,4.2vw,42px);line-height:1.25;font-weight:700;color:var(--text);
  letter-spacing:-.01em;margin-bottom:18px;
}
.hero-copy h1 em{font-style:normal;color:var(--brand);}
.hero-sub{font-size:17px;line-height:1.8;color:var(--text-2);max-width:540px;margin-bottom:26px;}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:24px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:18px;
  box-shadow:var(--shadow);
}
.hero-float{
  position:absolute;left:-16px;bottom:22px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  padding:14px 18px;box-shadow:var(--shadow);min-width:180px;
}
.hero-float strong{display:block;font-size:24px;line-height:1.2;color:var(--brand);font-weight:800;}
.hero-float span{font-size:13px;color:var(--text-2);}

/* ===== 通用板块 ===== */
.section{padding:88px 0;}
.section-alt{background:#fff;}
.section-soft{background:var(--brand-soft);}
.section-head{max-width:720px;margin-bottom:32px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:700;
  letter-spacing:.14em;color:var(--brand);text-transform:uppercase;margin-bottom:14px;
}
.kicker::before{content:"";width:22px;height:2px;background:var(--accent);border-radius:2px;}
.section h2{font-size:clamp(24px,3vw,30px);line-height:1.35;font-weight:700;color:var(--text);margin-bottom:14px;}
.section-lead{font-size:16px;color:var(--text-2);max-width:680px;}

/* ===== 三步排查 ===== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.step-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px 26px;box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.step-num{
  width:44px;height:44px;border-radius:12px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;font-weight:800;font-size:17px;margin-bottom:16px;
}
.step-card h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.step-card p{font-size:15px;color:var(--text-2);}

/* ===== FAQ 布局 ===== */
.faq-layout{display:grid;grid-template-columns:268px 1fr;gap:48px;align-items:start;}
.faq-toc{
  position:sticky;top:104px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 22px;box-shadow:var(--shadow);
}
.faq-toc h3{font-size:16px;font-weight:700;margin-bottom:6px;}
.faq-toc .toc-note{font-size:13px;color:var(--text-3);margin-bottom:16px;}
.faq-toc nav a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:11px 12px;border-radius:10px;font-size:14px;color:var(--text-2);font-weight:500;
  border-left:3px solid transparent;
}
.faq-toc nav a:hover{background:var(--brand-soft);color:var(--brand-deep);border-left-color:var(--accent);}
.faq-toc nav a i{font-size:12px;color:var(--text-3);}
.faq-toc .toc-cta{margin-top:18px;padding-top:18px;border-top:1px solid var(--line);}
.faq-toc .toc-cta p{font-size:13px;color:var(--text-2);margin-bottom:12px;}

.faq-group{margin-bottom:40px;}
.faq-group:last-child{margin-bottom:0;}
.faq-group > h2{
  font-size:22px;font-weight:700;margin-bottom:8px;display:flex;align-items:center;gap:10px;
}
.faq-group > h2::before{content:"";width:4px;height:20px;border-radius:2px;background:var(--brand);}
.faq-group > .group-lead{font-size:14px;color:var(--text-3);margin-bottom:20px;}

.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  margin-bottom:14px;overflow:hidden;
  transition:box-shadow .2s ease,border-color .2s ease,background .2s ease;
}
.faq-item:hover{box-shadow:var(--shadow);border-color:#D6E3EF;}
.faq-item.is-open{background:var(--brand-soft);border-color:rgba(18,91,154,.28);box-shadow:var(--shadow);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;gap:14px;justify-content:space-between;
  background:transparent;border:0;border-left:3px solid transparent;
  padding:20px 24px;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.6;
}
.faq-item.is-open .faq-q{border-left-color:var(--brand);color:var(--brand-deep);}
.faq-q span{flex:1;}
.faq-q .chev{
  flex:0 0 auto;width:26px;height:26px;border-radius:50%;
  border:1px solid var(--line);background:#fff;color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:11px;
  transition:transform .25s ease,background .2s ease,color .2s ease;
}
.faq-item.is-open .faq-q .chev{transform:rotate(180deg);background:var(--brand);color:#fff;border-color:var(--brand);}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease;}
.faq-item.is-open .faq-a{grid-template-rows:1fr;}
.faq-a-inner{overflow:hidden;}
.faq-a-body{padding:0 24px 22px 40px;font-size:15px;color:var(--text-2);}
.faq-a-body p + p{margin-top:.9em;}
.faq-a-body ol{list-style:none;counter-reset:faqstep;margin-top:12px;}
.faq-a-body ol li{
  counter-increment:faqstep;position:relative;padding-left:30px;margin-bottom:8px;color:var(--text-2);
}
.faq-a-body ol li::before{
  content:counter(faqstep);position:absolute;left:0;top:4px;
  width:20px;height:20px;border-radius:6px;background:#fff;border:1px solid rgba(18,91,154,.3);
  color:var(--brand);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
}
.faq-a-body .tip{
  margin-top:14px;padding:12px 16px;border-left:3px solid var(--brand);
  background:rgba(255,255,255,.85);border-radius:0 10px 10px 0;font-size:14px;color:var(--text-2);
}

/* ===== 收口 CTA ===== */
.cta-band{padding:0 0 88px;}
.cta-inner{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  border-radius:24px;padding:52px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  box-shadow:0 30px 60px -30px rgba(11,59,104,.6);
  position:relative;overflow:hidden;
}
.cta-inner::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:rgba(255,255,255,.07);
}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.6vw,28px);margin-bottom:8px;}
.cta-inner p{color:#C8DBEC;font-size:15px;max-width:560px;}
.cta-inner .cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:2;}

/* ===== 相关推荐 ===== */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.content-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.content-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.content-card .thumb{margin:0;position:relative;}
.content-card .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.content-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1;}
.content-card h3{font-size:18px;font-weight:600;line-height:1.55;margin:12px 0 10px;}
.content-card h3 a{color:var(--text);}
.content-card h3 a:hover{color:var(--brand);}
.content-card p{font-size:14px;color:var(--text-2);flex:1;}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;
  margin-top:18px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.card-foot i{color:var(--brand);font-size:13px;transition:transform .2s ease;}
.content-card:hover .card-foot i{transform:translateX(3px);}

/* ===== 空态 ===== */
.empty-state{
  text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--line);
  border-radius:var(--radius-card);
}
.empty-state i{font-size:32px;color:var(--text-3);margin-bottom:14px;display:block;}
.empty-state p{color:var(--text-2);font-size:15px;margin-bottom:18px;}

/* ===== 页脚 ===== */
.site-footer{background:var(--brand-deep);color:#B9C7D4;padding:64px 0 0;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding-bottom:46px;}
.footer-logo{
  display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:14px;
}
.footer-logo .logo-mark{background:linear-gradient(150deg,#2F86C9,#125B9A);}
.site-footer p{color:#B9C7D4;line-height:1.85;font-size:14px;}
.site-footer h3{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:.02em;}
.footer-links li{margin-bottom:10px;}
.footer-links a{color:#B9C7D4;}
.footer-links a:hover{color:#fff;text-decoration:underline;}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;line-height:1.7;color:#B9C7D4;}
.footer-contact i{margin-top:5px;color:#6FA8D4;flex:0 0 auto;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0 26px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA6BA;
}

/* ===== 响应式 ===== */
@media screen and (max-width:1024px){
  .container,.container-narrow{padding:0 24px;}
  .nav-list{display:none;}
  .hamburger{display:inline-flex;}
  .header-actions .btn{display:none;}
  .section{padding:64px 0;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero{padding:44px 0 56px;}
  .steps{grid-template-columns:1fr 1fr;}
  .faq-layout{grid-template-columns:1fr;gap:32px;}
  .faq-toc{position:static;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-inner{padding:40px 32px;}
}
@media screen and (max-width:640px){
  body{font-size:15.5px;}
  .container,.container-narrow{padding:0 16px;}
  .section{padding:48px 0;}
  .cta-band{padding:0 0 48px;}
  .header-inner{height:64px;gap:12px;}
  .brand{font-size:17px;}
  .logo-mark{width:32px;height:32px;flex:0 0 32px;font-size:13px;}
  .breadcrumb-bar{margin-top:64px;}
  .breadcrumb .current{max-width:46vw;}
  .page-hero{padding:32px 0 42px;}
  .hero-copy h1{font-size:26px;}
  .hero-sub{font-size:15.5px;}
  .hero-cta{gap:10px;}
  .hero-cta .btn{flex:1 1 100%;}
  .hero-visual img{aspect-ratio:16/10;max-height:240px;}
  .hero-float{left:12px;bottom:12px;padding:12px 14px;min-width:150px;}
  .hero-float strong{font-size:20px;}
  .steps{grid-template-columns:1fr;}
  .card-grid{grid-template-columns:1fr;}
  .faq-q{padding:16px 18px;font-size:15.5px;}
  .faq-a-body{padding:0 18px 20px 22px;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:32px 22px;border-radius:20px;}
  .cta-inner .cta-actions{width:100%;}
  .cta-inner .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:34px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;scroll-behavior:auto !important;}
}