/* roulang page: index */
:root{
  --primary:#1257C9;
  --primary-dark:#0E46A6;
  --primary-light:#E8F0FE;
  --primary-soft:#EEF3FC;
  --accent:#F26522;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --border:#E3E9F2;
  --text:#1B2434;
  --muted:#5A6779;
  --success:#1E9E6A;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(20,45,90,.05),0 10px 24px rgba(20,45,90,.07);
  --shadow-hover:0 2px 4px rgba(20,45,90,.06),0 16px 36px rgba(20,45,90,.10);
  --shadow-deep:0 4px 8px rgba(20,45,90,.06),0 24px 56px rgba(20,45,90,.13);
  --section-gap:96px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:132px;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--text);}
h1{letter-spacing:-0.5px;line-height:1.18;}
h2{font-size:30px;line-height:1.3;}
h3{font-size:20px;line-height:1.4;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:4px;}
.container{max-width:var(--container);padding-left:24px;padding-right:24px;margin:0 auto;width:100%;}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--border);transition:box-shadow .25s ease;}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(20,45,90,.08);}
.nav-top{display:flex;align-items:center;gap:28px;height:72px;transition:height .25s ease;}
.site-header.is-scrolled .nav-top{height:64px;}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{width:42px;height:42px;border-radius:12px;background:linear-gradient(135deg,var(--primary) 0%,#2E7BEA 100%);color:#fff;display:flex;align-items:center;justify-content:center;font-size:19px;font-weight:700;letter-spacing:0;}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:18px;font-weight:500;color:var(--text);letter-spacing:0;}
.brand-sub{font-size:12px;color:var(--muted);letter-spacing:.5px;}
.nav-search{flex:1 1 auto;max-width:560px;position:relative;}
.nav-search form{display:flex;align-items:center;background:var(--bg);border:1px solid var(--border);border-radius:980px;height:44px;padding:0 6px 0 18px;transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;}
.nav-search form:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(18,87,201,.12);}
.nav-search .search-icon{color:rgba(18,87,201,.6);font-size:15px;margin-right:10px;}
.nav-search input{flex:1 1 auto;border:0;background:transparent;font-size:14px;color:var(--text);height:40px;min-width:0;}
.nav-search input:focus{outline:none;}
.nav-search input::placeholder{color:#8994A6;}
.nav-search button{border:0;background:var(--primary);color:#fff;font-size:14px;font-weight:500;height:32px;padding:0 18px;border-radius:980px;transition:background .2s ease,transform .2s ease;}
.nav-search button:hover{background:var(--primary-dark);transform:translateY(-1px);}
.nav-actions{flex:0 0 auto;display:flex;align-items:center;gap:12px;}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-size:15px;font-weight:500;border-radius:var(--radius-btn);padding:11px 22px;border:1px solid transparent;cursor:pointer;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;line-height:1.4;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(18,87,201,.22);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(18,87,201,.28);}
.btn-ghost{background:#fff;color:var(--primary);border-color:#C9DBF7;}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary);transform:translateY(-1px);}
.btn-link{color:var(--primary);font-weight:500;padding:0;background:none;border:0;display:inline-flex;align-items:center;gap:6px;}
.btn-link:hover{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;}
.btn-sm{padding:8px 16px;font-size:14px;}
.btn-block{width:100%;}

.nav-cats{display:flex;align-items:center;gap:6px;height:48px;overflow-x:auto;scrollbar-width:none;}
.nav-cats::-webkit-scrollbar{display:none;}
.nav-cats a{position:relative;flex:0 0 auto;font-size:14px;color:var(--muted);padding:6px 14px;border-radius:8px;font-weight:500;white-space:nowrap;transition:color .2s ease,background .2s ease;}
.nav-cats a:hover{color:var(--primary);background:var(--primary-light);}
.nav-cats a.active{color:var(--primary);font-weight:700;background:var(--primary-light);}
.nav-cats a.active::after{content:"";position:absolute;left:14px;right:14px;bottom:-11px;height:2px;background:var(--primary);border-radius:2px;}

/* ---------- Hero ---------- */
.hero{padding:72px 0 64px;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;}
.eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--primary);background:var(--primary-light);border-radius:6px;padding:6px 12px;margin-bottom:20px;}
.hero h1{font-size:46px;margin-bottom:20px;}
.hero h1 .hl{color:var(--primary);position:relative;}
.hero-sub{font-size:17px;color:var(--muted);max-width:520px;margin-bottom:28px;}
.hero-btns{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-points{display:flex;flex-wrap:wrap;gap:22px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);}
.hero-points i{color:var(--primary);font-size:14px;}
.hero-media{position:relative;}
.hero-media .frame{border-radius:20px;overflow:hidden;box-shadow:var(--shadow-deep);background:#E9EEF7;aspect-ratio:4/3.2;}
.hero-media .frame img{width:100%;height:100%;object-fit:cover;}
.hero-float{position:absolute;left:-24px;bottom:28px;background:#fff;border-radius:14px;box-shadow:var(--shadow-card);padding:16px 20px;display:flex;align-items:center;gap:14px;border:1px solid var(--border);}
.hero-float .num{font-size:26px;font-weight:700;color:var(--primary);line-height:1;}
.hero-float .txt{font-size:13px;color:var(--muted);line-height:1.4;}
.hero-tag{position:absolute;right:-14px;top:22px;background:var(--accent);color:#fff;font-size:12px;font-weight:500;border-radius:6px;padding:6px 12px;box-shadow:0 8px 18px rgba(242,101,34,.28);}

/* ---------- 锚点条 ---------- */
.anchor-bar{position:sticky;top:112px;z-index:1020;background:rgba(255,255,255,.94);backdrop-filter:blur(8px);border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.anchor-inner{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none;padding:10px 0;}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-inner a{flex:0 0 auto;font-size:14px;color:var(--muted);padding:7px 16px;border-radius:980px;font-weight:500;transition:all .2s ease;}
.anchor-inner a:hover{color:var(--primary);background:var(--primary-light);}
.anchor-inner a.active{background:var(--primary);color:#fff;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-gap) 0;}
.section-head{max-width:720px;margin-bottom:48px;}
.section-head .kicker{display:inline-block;font-size:13px;font-weight:500;color:var(--accent);letter-spacing:1px;margin-bottom:12px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;margin:0;}
.section-head.center{text-align:center;margin-left:auto;margin-right:auto;}

/* ---------- 卖点区 ---------- */
.value-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.value-card{background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease;}
.value-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.value-card .ico{width:46px;height:46px;border-radius:12px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:19px;margin-bottom:18px;}
.value-card h3{font-size:18px;margin-bottom:10px;}
.value-card p{font-size:14px;color:var(--muted);margin:0;}
.value-wide{grid-column:span 2;display:flex;gap:28px;align-items:center;background:linear-gradient(135deg,#FFFFFF 0%,#F7FAFF 100%);}
.value-wide .thumb{flex:0 0 42%;border-radius:var(--radius-img);overflow:hidden;aspect-ratio:16/11;background:#E9EEF7;}
.value-wide .thumb img{width:100%;height:100%;object-fit:cover;}
.value-wide h3{font-size:22px;margin-bottom:12px;}
.value-wide p{font-size:15px;color:var(--muted);margin-bottom:16px;}
.value-wide .mini-list li{display:flex;gap:8px;font-size:14px;color:var(--text);margin-bottom:8px;}
.value-wide .mini-list i{color:var(--success);margin-top:5px;font-size:13px;}
.value-strip{margin-top:24px;display:flex;align-items:center;gap:18px;background:var(--primary-soft);border:1px solid #D8E4F8;border-radius:var(--radius-card);padding:22px 28px;}
.value-strip i{font-size:22px;color:var(--primary);}
.value-strip p{margin:0;font-size:15px;color:var(--text);}
.value-strip .mark{flex:0 0 auto;font-size:12px;font-weight:500;color:var(--primary);background:#fff;border:1px solid #C9DBF7;border-radius:6px;padding:5px 12px;}

/* ---------- 演示区 ---------- */
.demo{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.demo-grid{display:grid;grid-template-columns:1fr 1.05fr;gap:56px;align-items:center;}
.demo-tabs{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:26px;}
.demo-tabs button{border:1px solid var(--border);background:#fff;color:var(--muted);font-size:14px;font-weight:500;padding:8px 16px;border-radius:980px;transition:all .2s ease;}
.demo-tabs button.is-active{background:var(--primary-light);color:var(--primary);border-color:#C9DBF7;}
.demo-list li{display:flex;gap:14px;padding:16px 0;border-bottom:1px dashed var(--border);}
.demo-list li:last-child{border-bottom:0;}
.demo-list .idx{flex:0 0 28px;height:28px;border-radius:8px;background:var(--primary-light);color:var(--primary);font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;}
.demo-list h4{font-size:16px;font-weight:500;margin-bottom:4px;}
.demo-list p{font-size:14px;color:var(--muted);margin:0;}
.demo-media{border-radius:20px;overflow:hidden;box-shadow:var(--shadow-deep);background:#E9EEF7;aspect-ratio:16/12;}
.demo-media img{width:100%;height:100%;object-fit:cover;}

/* ---------- 证据区 ---------- */
.stats-strip{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);padding:34px 28px;box-shadow:var(--shadow-card);}
.stat-item{text-align:center;border-right:1px solid var(--border);}
.stat-item:last-child{border-right:0;}
.stat-item .num{font-size:32px;font-weight:700;color:var(--primary);line-height:1.1;letter-spacing:-0.5px;}
.stat-item .num span{font-size:16px;font-weight:500;margin-left:2px;}
.stat-item .lbl{font-size:13px;color:var(--muted);margin-top:8px;}
.quote-box{margin-top:28px;background:var(--primary-soft);border-left:4px solid var(--primary);border-radius:12px;padding:28px 32px;}
.quote-box p{font-size:17px;line-height:1.75;color:var(--text);margin:0 0 14px;}
.quote-box p::before{content:"“";color:var(--primary);font-size:26px;font-weight:700;line-height:0;margin-right:4px;}
.quote-box .sign{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:10px;}
.quote-box .sign .dot{width:26px;height:26px;border-radius:50%;background:var(--primary);color:#fff;font-size:12px;display:flex;align-items:center;justify-content:center;}
.logo-row{display:flex;flex-wrap:wrap;gap:16px;margin-top:28px;}
.logo-chip{flex:1 1 160px;height:60px;border-radius:12px;background:#F1F4FA;border:1px solid var(--border);display:flex;align-items:center;justify-content:center;font-size:14px;color:#7A879B;font-weight:500;letter-spacing:.5px;}

/* ---------- 价格区 ---------- */
.plan{background:#fff;border-top:1px solid var(--border);}
.plan-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.plan-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);padding:32px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease;position:relative;}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.plan-card.featured{border:2px solid var(--primary);box-shadow:0 4px 10px rgba(18,87,201,.08),0 18px 40px rgba(18,87,201,.14);}
.plan-badge{position:absolute;top:-13px;right:26px;background:var(--accent);color:#fff;font-size:12px;font-weight:500;padding:4px 12px;border-radius:6px;}
.plan-card h3{font-size:20px;margin-bottom:8px;}
.plan-card .desc{font-size:14px;color:var(--muted);margin-bottom:20px;}
.plan-price{font-size:30px;font-weight:700;color:var(--primary);margin-bottom:22px;line-height:1.2;}
.plan-price span{font-size:14px;font-weight:400;color:var(--muted);margin-left:6px;}
.plan-list{margin-bottom:26px;}
.plan-list li{display:flex;gap:10px;font-size:14px;color:var(--text);padding:7px 0;}
.plan-list i{color:var(--primary);font-size:12px;margin-top:6px;}
.plan-wide{margin-top:24px;display:grid;grid-template-columns:1.1fr 1fr auto;gap:32px;align-items:center;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius-card);padding:30px 32px;}
.plan-wide h3{font-size:19px;margin-bottom:8px;}
.plan-wide p{font-size:14px;color:var(--muted);margin:0;}
.plan-wide .tags{display:flex;flex-wrap:wrap;gap:8px;}
.plan-wide .tags span{font-size:12px;color:var(--primary);background:var(--primary-light);border-radius:6px;padding:5px 11px;}

/* ---------- 最新信息 ---------- */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.news-head .section-head{margin-bottom:0;}
.news-layout{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;}
.news-hero{display:flex;flex-direction:column;background:#fff;border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease;color:inherit;}
.news-hero:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);color:inherit;}
.news-hero .cover{aspect-ratio:16/9;background:#E9EEF7;overflow:hidden;}
.news-hero .cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.news-hero:hover .cover img{transform:scale(1.03);}
.news-hero .body{padding:26px;display:flex;flex-direction:column;gap:12px;flex:1;}
.news-hero h3{font-size:21px;line-height:1.45;transition:color .2s ease;}
.news-hero:hover h3{color:var(--primary);}
.news-hero p{font-size:14px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-side{display:flex;flex-direction:column;gap:14px;}
.news-item{display:flex;gap:16px;background:#fff;border:1px solid var(--border);border-radius:14px;padding:14px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease;color:inherit;}
.news-item:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);color:inherit;}
.news-item .thumb{flex:0 0 118px;aspect-ratio:16/11;border-radius:10px;overflow:hidden;background:#E9EEF7;}
.news-item .thumb img{width:100%;height:100%;object-fit:cover;}
.news-item .info{display:flex;flex-direction:column;gap:6px;min-width:0;}
.news-item h4{font-size:15px;font-weight:500;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s ease;margin:0;}
.news-item:hover h4{color:var(--primary);}
.news-item p{font-size:13px;color:var(--muted);margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.badge-cat{display:inline-flex;align-items:center;font-size:12px;font-weight:500;color:var(--primary);background:var(--primary-light);border-radius:6px;padding:3px 9px;line-height:1.5;}
.meta-row{display:flex;align-items:center;gap:12px;font-size:12px;color:#8994A6;}
.meta-row .arrow{margin-left:auto;color:var(--primary);transition:transform .2s ease;}
.news-item:hover .arrow,.news-hero:hover .arrow{transform:translateX(2px);}
.news-empty{background:#fff;border:1px dashed #CBD5E5;border-radius:var(--radius-card);padding:64px 24px;text-align:center;}
.news-empty i{font-size:30px;color:#AEB9CB;margin-bottom:14px;display:block;}
.news-empty p{color:var(--muted);font-size:15px;margin-bottom:18px;}

/* ---------- FAQ ---------- */
.faq{background:#fff;border-top:1px solid var(--border);}
.faq-wrap{max-width:860px;margin:0 auto;}
.accordion-item{background:#fff;border:1px solid var(--border);border-radius:14px;margin-bottom:12px;overflow:hidden;}
.accordion-button{width:100%;text-align:left;background:#fff;border:0;padding:20px 24px;font-size:16px;font-weight:500;color:var(--text);display:flex;align-items:center;justify-content:space-between;gap:16px;box-shadow:none;transition:color .2s ease,background .2s ease;}
.accordion-button:not(.collapsed){color:var(--primary);background:#fff;box-shadow:none;border-top:2px solid var(--primary);}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--primary);outline-offset:-2px;}
.accordion-button::after{content:"\2b";font-family:inherit;font-size:20px;font-weight:400;color:var(--primary);background:none;width:auto;height:auto;line-height:1;transform:none;transition:transform .2s ease;}
.accordion-button:not(.collapsed)::after{content:"\2212";transform:none;}
.accordion-body{padding:0 24px 22px;font-size:15px;line-height:1.75;color:var(--muted);}

/* ---------- 页脚 CTA ---------- */
.cta-band{background:var(--primary-soft);border:1px solid #D8E4F8;border-radius:16px;padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-band h2{font-size:24px;margin-bottom:8px;}
.cta-band p{color:var(--muted);font-size:15px;margin:0;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--primary-soft);border-top:1px solid #DCE6F6;margin-top:var(--section-gap);}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 40px;}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:var(--muted);max-width:280px;line-height:1.75;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--text);}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--primary);}
.footer-contact li{font-size:14px;color:var(--muted);display:flex;gap:10px;margin-bottom:12px;}
.footer-contact i{color:var(--primary);margin-top:4px;}
.footer-bottom{border-top:1px solid #DCE6F6;padding:20px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#7A879B;}

/* ---------- 浮动 CTA ---------- */
.floating-cta{position:fixed;right:28px;bottom:28px;z-index:1040;display:inline-flex;align-items:center;gap:9px;background:var(--primary);color:#fff;font-size:15px;font-weight:500;padding:13px 22px;border-radius:980px;box-shadow:0 8px 20px rgba(18,87,201,.32);opacity:0;visibility:hidden;transform:translateY(14px);transition:opacity .28s ease,transform .28s ease,visibility .28s ease,background .2s ease;}
.floating-cta:hover{background:var(--primary-dark);color:#fff;}
.floating-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero h1{font-size:40px;}
  .value-grid{grid-template-columns:repeat(2,1fr);}
  .value-wide{grid-column:span 2;}
  .news-layout{grid-template-columns:1fr;}
}
@media (max-width:991px){
  :root{--section-gap:64px;}
  .nav-top{flex-wrap:wrap;height:auto;padding:14px 0;gap:14px;}
  .site-header.is-scrolled .nav-top{height:auto;}
  .nav-search{order:3;flex:1 1 100%;max-width:100%;}
  .nav-actions{margin-left:auto;}
  .nav-cats{height:44px;}
  .nav-cats a.active::after{bottom:-9px;}
  .hero{padding:48px 0 40px;}
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .hero h1{font-size:34px;}
  .hero-media .frame{aspect-ratio:16/10;}
  .hero-float{left:12px;bottom:14px;padding:12px 16px;}
  .anchor-bar{top:0;}
  html{scroll-padding-top:96px;}
  h2{font-size:24px;}
  .demo-grid{grid-template-columns:1fr;gap:36px;}
  .stats-strip{grid-template-columns:repeat(2,1fr);gap:28px 20px;}
  .stat-item:nth-child(2){border-right:0;}
  .plan-grid{grid-template-columns:1fr;}
  .plan-wide{grid-template-columns:1fr;gap:20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px;}
  .cta-band{padding:32px 28px;}
}
@media (max-width:767px){
  .container{padding-left:20px;padding-right:20px;}
  .brand-sub{display:none;}
  .brand-name{font-size:16px;}
  .brand-mark{width:36px;height:36px;font-size:16px;border-radius:10px;}
  .nav-actions .btn{padding:9px 14px;font-size:14px;}
  .hero h1{font-size:29px;}
  .hero-sub{font-size:15px;}
  .hero-points{gap:14px;flex-direction:column;align-items:flex-start;}
  .hero-float{position:static;margin-top:16px;left:auto;bottom:auto;display:inline-flex;}
  .hero-tag{right:10px;top:10px;}
  .value-grid{grid-template-columns:1fr;}
  .value-wide{grid-column:span 1;flex-direction:column;align-items:flex-start;}
  .value-wide .thumb{flex:0 0 auto;width:100%;}
  .value-strip{flex-direction:column;align-items:flex-start;gap:12px;}
  .news-item .thumb{flex:0 0 96px;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .floating-cta{right:16px;left:16px;bottom:0;border-radius:0;justify-content:center;padding:16px;height:56px;transform:translateY(100%);}
  .floating-cta.is-visible{transform:translateY(0);}
  body{padding-bottom:56px;}
  .site-footer{margin-bottom:0;}
}
@media (max-width:519px){
  .hero h1{font-size:26px;}
  .stat-item .num{font-size:26px;}
  .news-item{flex-direction:row;}
  .plan-card{padding:24px;}
  .accordion-button{padding:16px 18px;font-size:15px;}
  .accordion-body{padding:0 18px 18px;}
}

/* roulang page: category1 */
:root{
  --primary:#1257C9;
  --primary-dark:#0E46A6;
  --primary-light:#E8F0FE;
  --primary-soft:#EEF3FC;
  --accent:#F26522;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --border:#E3E9F2;
  --text:#1B2434;
  --muted:#5A6779;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(20,45,90,.05),0 10px 24px rgba(20,45,90,.07);
  --shadow-hover:0 2px 4px rgba(20,45,90,.06),0 16px 36px rgba(20,45,90,.10);
  --space-section:96px;
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.97);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--border);
  transition:box-shadow .25s ease;
}
.site-header.scrolled{box-shadow:0 4px 16px rgba(20,45,90,.08);}
.nav-top{
  display:flex;align-items:center;gap:24px;
  min-height:72px;padding:12px 0;
  transition:min-height .25s ease,padding .25s ease;
}
.site-header.scrolled .nav-top{min-height:64px;padding:8px 0;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:flex;align-items:center;justify-content:center;
  border-radius:11px;background:linear-gradient(150deg,var(--primary),#2E77E8);
  color:#fff;font-size:19px;font-weight:700;letter-spacing:0;
  box-shadow:0 6px 14px rgba(18,87,201,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:18px;font-weight:500;color:var(--text);letter-spacing:-.2px;}
.brand-sub{font-size:12px;color:var(--muted);margin-top:3px;}
.brand:hover .brand-name{color:var(--primary);}
.nav-search{flex:1 1 auto;max-width:560px;margin:0 auto;}
.nav-search form{
  position:relative;display:flex;align-items:center;
  height:44px;background:#F2F5FA;
  border:1px solid var(--border);border-radius:980px;
  padding:0 5px 0 42px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-search form:focus-within{
  background:#fff;border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(18,87,201,.13);
}
.nav-search .search-icon{
  position:absolute;left:16px;top:50%;transform:translateY(-50%);
  color:rgba(18,87,201,.6);font-size:15px;pointer-events:none;
}
.nav-search input[type="search"]{
  flex:1;border:0;background:transparent;height:100%;
  font-size:14px;color:var(--text);outline:none;
}
.nav-search input[type="search"]::placeholder{color:#8A96A8;}
.nav-search button{
  flex:0 0 auto;height:34px;padding:0 18px;
  border:0;border-radius:980px;cursor:pointer;
  background:var(--primary);color:#fff;font-size:14px;font-weight:500;
  transition:background .2s ease,transform .2s ease;
}
.nav-search button:hover{background:var(--primary-dark);transform:translateY(-1px);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);font-weight:500;cursor:pointer;
  border:1px solid transparent;text-decoration:none;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px;}
.btn-lg{height:50px;padding:0 26px;font-size:16px;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(18,87,201,.22);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);}
.btn-outline{background:#fff;color:var(--primary);border-color:rgba(18,87,201,.38);}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary);}
.btn-ghost{background:var(--primary-light);color:var(--primary-dark);}
.btn-ghost:hover{background:#DCE8FD;color:var(--primary-dark);}
.link-arrow{
  display:inline-flex;align-items:center;gap:7px;
  font-size:15px;font-weight:500;color:var(--primary);
}
.link-arrow i{transition:transform .2s ease;font-size:13px;}
.link-arrow:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;}
.link-arrow:hover i{transform:translateX(3px);}

.nav-cats{
  display:flex;align-items:center;gap:8px;
  height:48px;overflow-x:auto;overflow-y:hidden;
  scrollbar-width:none;border-top:1px solid rgba(227,233,242,.75);
}
.nav-cats::-webkit-scrollbar{display:none;}
.nav-cats a{
  position:relative;flex:0 0 auto;
  padding:0 14px;height:48px;display:inline-flex;align-items:center;
  font-size:15px;color:var(--muted);white-space:nowrap;
  transition:color .2s ease;
}
.nav-cats a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--primary);border-radius:2px;
  transform:scaleX(0);transform-origin:center;transition:transform .22s ease;
}
.nav-cats a:hover{color:var(--primary);}
.nav-cats a.active{color:var(--primary);font-weight:500;}
.nav-cats a.active::after{transform:scaleX(1);}

/* ============ 面包屑 ============ */
.breadcrumb-bar{padding:20px 0 0;background:var(--bg);}
.breadcrumb-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);}
.breadcrumb-list a{color:var(--muted);}
.breadcrumb-list a:hover{color:var(--primary);}
.breadcrumb-list .sep{color:#BAC4D3;}
.breadcrumb-list [aria-current="page"]{color:var(--text);font-weight:500;}

/* ============ 分类 Hero ============ */
.cat-hero{padding:34px 0 56px;}
.cat-hero-inner{
  display:grid;grid-template-columns:1.08fr .92fr;gap:48px;align-items:center;
}
.cat-tag{
  display:inline-flex;align-items:center;gap:8px;
  height:30px;padding:0 13px;border-radius:6px;
  background:var(--primary-light);color:var(--primary-dark);
  font-size:12px;font-weight:500;letter-spacing:.3px;
  margin-bottom:18px;
}
.cat-tag i{font-size:11px;}
.cat-hero h1{
  font-size:44px;line-height:1.18;letter-spacing:-.5px;font-weight:700;
  margin-bottom:18px;
}
.cat-hero h1 em{font-style:normal;color:var(--primary);}
.cat-hero .hero-sub{
  font-size:17px;color:var(--muted);line-height:1.7;
  max-width:520px;margin-bottom:24px;
}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-bottom:28px;}
.hero-points li{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;color:var(--text);
}
.hero-points i{color:var(--accent);font-size:13px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.cat-hero-media{
  position:relative;border-radius:var(--radius-card);
  overflow:hidden;box-shadow:0 2px 4px rgba(20,45,90,.05),0 18px 40px rgba(20,45,90,.12);
  background:#E9EEF6;
}
.cat-hero-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;}
.media-float{
  position:absolute;left:18px;bottom:18px;
  background:#fff;border-radius:12px;padding:14px 18px;
  box-shadow:0 8px 22px rgba(20,45,90,.16);
  display:flex;align-items:center;gap:12px;
}
.media-float .num{font-size:22px;font-weight:700;color:var(--primary);line-height:1;}
.media-float .txt{font-size:12px;color:var(--muted);line-height:1.5;}

/* ============ 锚点胶囊条 ============ */
.anchor-bar{
  position:sticky;top:120px;z-index:900;
  background:rgba(246,248,252,.94);
  backdrop-filter:blur(6px);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.anchor-inner{
  display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;
  padding:12px 0;
}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-inner a{
  flex:0 0 auto;height:36px;padding:0 16px;
  display:inline-flex;align-items:center;gap:7px;
  border-radius:980px;background:#fff;border:1px solid var(--border);
  font-size:14px;color:var(--muted);
  transition:all .2s ease;
}
.anchor-inner a i{font-size:12px;color:#9AA7B8;transition:color .2s ease;}
.anchor-inner a:hover{border-color:var(--primary);color:var(--primary);}
.anchor-inner a:hover i{color:var(--primary);}
.anchor-inner a.on{background:var(--primary-light);border-color:rgba(18,87,201,.35);color:var(--primary-dark);font-weight:500;}
.anchor-inner a.on i{color:var(--primary);}

/* ============ 通用板块 ============ */
.section{padding:var(--space-section) 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-eyebrow{
  display:inline-block;font-size:13px;font-weight:500;color:var(--primary);
  letter-spacing:1px;margin-bottom:12px;
}
.section-head h2{font-size:30px;line-height:1.3;margin-bottom:14px;letter-spacing:-.3px;}
.section-head p{font-size:16px;color:var(--muted);margin:0;}

/* ============ 图文交替流 ============ */
.flow{display:flex;flex-direction:column;gap:72px;}
.flow-item{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
}
.flow-item:nth-child(even) .flow-media{order:2;}
.flow-media{
  border-radius:var(--radius-card);overflow:hidden;background:#E9EEF6;
  box-shadow:var(--shadow-card);
  transition:box-shadow .2s ease,transform .2s ease;
}
.flow-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.flow-item:hover .flow-media{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.flow-index{
  display:inline-flex;align-items:center;gap:10px;
  font-size:13px;font-weight:500;color:var(--primary);
  margin-bottom:12px;letter-spacing:.5px;
}
.flow-index .dot{
  width:26px;height:26px;border-radius:8px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary-dark);font-size:13px;font-weight:700;
}
.flow-body h3{font-size:23px;line-height:1.35;margin-bottom:14px;letter-spacing:-.2px;}
.flow-body p{font-size:15.5px;color:#3C4859;line-height:1.8;margin-bottom:14px;}
.flow-list{margin:18px 0 22px;}
.flow-list li{
  position:relative;padding-left:26px;margin-bottom:11px;
  font-size:15px;color:var(--text);line-height:1.7;
}
.flow-list li i{
  position:absolute;left:0;top:5px;font-size:13px;color:var(--primary);
}
.flow-note{
  background:var(--primary-soft);border-left:3px solid var(--primary);
  border-radius:0 10px 10px 0;padding:12px 16px;
  font-size:14px;color:#3C4859;line-height:1.7;margin-bottom:20px;
}

/* ============ 速查卡 ============ */
.quick-section{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.quick-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.quick-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-card);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.quick-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:rgba(18,87,201,.3);}
.quick-icon{
  width:44px;height:44px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary-light);color:var(--primary);font-size:18px;
  margin-bottom:18px;
}
.quick-card h3{font-size:17px;line-height:1.4;margin-bottom:10px;}
.quick-card p{font-size:14px;color:var(--muted);line-height:1.75;margin:0 0 18px;}
.quick-card .link-arrow{margin-top:auto;font-size:14px;}

/* ============ 数据条 ============ */
.stats-band{
  background:var(--primary-soft);
  border-radius:20px;padding:40px 32px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.stat-item{text-align:left;border-right:1px solid rgba(18,87,201,.15);padding-right:20px;}
.stat-item:last-child{border-right:0;padding-right:0;}
.stat-num{font-size:32px;font-weight:700;color:var(--primary);line-height:1.1;letter-spacing:-.5px;}
.stat-num span{font-size:16px;font-weight:500;margin-left:2px;}
.stat-desc{font-size:14px;color:var(--muted);margin-top:8px;line-height:1.6;}

/* ============ 页尾 CTA ============ */
.cta-band{padding:0 0 var(--space-section);}
.cta-inner{
  background:var(--primary-light);
  border-radius:16px;padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  border:1px solid rgba(18,87,201,.14);
}
.cta-inner h2{font-size:26px;line-height:1.35;margin-bottom:10px;letter-spacing:-.3px;}
.cta-inner p{font-size:15px;color:#455A78;margin:0;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex-shrink:0;}

/* ============ 页脚 ============ */
.site-footer{background:var(--primary-soft);border-top:1px solid rgba(18,87,201,.12);padding:64px 0 0;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:44px;
}
.footer-brand .brand{margin-bottom:16px;}
.footer-brand p{font-size:14px;color:#4A5A73;line-height:1.8;max-width:330px;margin:0;}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text);font-weight:500;}
.footer-col ul li{margin-bottom:12px;}
.footer-col ul li a{font-size:14px;color:#4A5A73;}
.footer-col ul li a:hover{color:var(--primary);}
.footer-contact li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:#4A5A73;line-height:1.6;
}
.footer-contact i{color:var(--primary);font-size:13px;margin-top:5px;flex-shrink:0;}
.footer-bottom{
  border-top:1px solid rgba(18,87,201,.14);
  padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#66748A;
}

/* ============ 浮动 CTA ============ */
.float-cta{
  position:fixed;right:26px;bottom:26px;z-index:1100;
  display:inline-flex;align-items:center;gap:9px;
  height:50px;padding:0 22px;border-radius:980px;
  background:var(--primary);color:#fff;font-size:15px;font-weight:500;
  box-shadow:0 8px 20px rgba(18,87,201,.32);
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease,background .2s ease;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--primary-dark);color:#fff;transform:translateY(-2px);}
.float-cta i{font-size:14px;}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .cat-hero h1{font-size:40px;}
  .quick-grid{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  :root{--space-section:64px;}
  .nav-top{flex-wrap:wrap;gap:14px;min-height:auto;padding:14px 0;}
  .nav-search{order:3;flex:1 0 100%;max-width:none;margin:0;}
  .nav-actions{margin-left:auto;}
  .brand-sub{display:none;}
  .nav-cats{height:44px;}
  .nav-cats a{height:44px;padding:0 12px;font-size:14px;}
  .anchor-bar{top:auto;position:static;}
  .cat-hero-inner{grid-template-columns:1fr;gap:34px;}
  .cat-hero{padding:24px 0 40px;}
  .cat-hero h1{font-size:34px;}
  .cat-hero-media img{aspect-ratio:16/10;}
  .flow-item{grid-template-columns:1fr;gap:28px;}
  .flow-item:nth-child(even) .flow-media{order:0;}
  .stats-band{grid-template-columns:repeat(2,1fr);gap:28px;}
  .stat-item:nth-child(2){border-right:0;padding-right:0;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:34px 30px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .footer-brand{grid-column:1 / -1;}
  .float-cta{right:16px;bottom:16px;}
}
@media (max-width:767.98px){
  .container{padding:0 20px;}
  .cat-hero h1{font-size:28px;letter-spacing:-.3px;}
  .cat-hero .hero-sub{font-size:15.5px;}
  .section-head h2{font-size:22px;}
  .flow{gap:52px;}
  .flow-body h3{font-size:20px;}
  .quick-grid{grid-template-columns:1fr;gap:16px;}
  .stats-band{grid-template-columns:1fr;padding:28px 22px;gap:22px;}
  .stat-item{border-right:0;border-bottom:1px solid rgba(18,87,201,.14);padding:0 0 20px;}
  .stat-item:last-child{border-bottom:0;padding-bottom:0;}
  .cta-inner{padding:28px 22px;}
  .cta-inner h2{font-size:21px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  body{padding-bottom:64px;}
  .float-cta{
    left:0;right:0;bottom:0;width:100%;height:56px;
    border-radius:0;justify-content:center;font-size:15px;
    box-shadow:0 -4px 18px rgba(20,45,90,.16);
  }
}
@media (max-width:575.98px){
  .brand-name{font-size:16px;}
  .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:17px;}
  .nav-search button{padding:0 14px;font-size:13px;}
  .hero-actions .btn{width:100%;}
}

/* roulang page: article */
:root{
  --brand:#1257C9;
  --brand-dark:#0E46A6;
  --brand-soft:#E8F0FE;
  --brand-soft-2:#F2F6FE;
  --accent:#F26522;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E3E9F2;
  --text:#1B2434;
  --muted:#5A6779;
  --success:#1F9E6E;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(20,45,90,.05),0 10px 24px rgba(20,45,90,.07);
  --shadow-card-hover:0 2px 4px rgba(20,45,90,.06),0 16px 36px rgba(20,45,90,.10);
  --shadow-header:0 4px 16px rgba(20,45,90,.06);
  --container:1200px;
  --section:96px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  font-weight:400;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--brand-dark);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--text);}
p{margin:0 0 1em;}
button{font-family:inherit;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding-left:24px;padding-right:24px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:500;line-height:1.2;
  padding:11px 22px;transition:all .2s ease;text-decoration:none;cursor:pointer;
}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-primary{background:var(--brand);border-color:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(18,87,201,.18);}
.btn-primary:hover,.btn-primary:focus{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);}
.btn-outline{background:#fff;border-color:#C9D8F0;color:var(--brand);}
.btn-outline:hover,.btn-outline:focus{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark);transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--brand);padding:8px 4px;}
.btn-ghost:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.scrolled{box-shadow:var(--shadow-header);}
.nav-top{display:flex;align-items:center;gap:28px;height:72px;transition:height .2s ease;}
.site-header.scrolled .nav-top{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:700;letter-spacing:0;flex:0 0 auto;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:18px;font-weight:500;color:var(--text);letter-spacing:-.2px;}
.brand-sub{font-size:12px;color:var(--muted);}
.nav-search{flex:1 1 auto;display:flex;justify-content:center;min-width:0;}
.nav-search form{position:relative;width:100%;max-width:520px;}
.nav-search input[type="search"]{
  width:100%;height:44px;border-radius:980px;border:1px solid transparent;
  background:#F1F5FB;color:var(--text);font-size:14px;
  padding:0 104px 0 46px;transition:all .2s ease;
}
.nav-search input[type="search"]::placeholder{color:#8B99AC;}
.nav-search input[type="search"]:focus{
  background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(18,87,201,.12);outline:none;
}
.nav-search .search-icon{
  position:absolute;left:17px;top:50%;transform:translateY(-50%);
  color:rgba(18,87,201,.6);font-size:15px;pointer-events:none;
}
.nav-search button{
  position:absolute;right:5px;top:5px;bottom:5px;width:84px;
  border:none;border-radius:980px;background:var(--brand);color:#fff;
  font-size:14px;font-weight:500;cursor:pointer;transition:background .2s ease;
}
.nav-search button:hover{background:var(--brand-dark);}
.nav-actions{flex:0 0 auto;display:flex;align-items:center;gap:10px;}
.nav-cats{
  display:flex;align-items:center;gap:6px;height:48px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.nav-cats::-webkit-scrollbar{display:none;}
.nav-cats a{
  position:relative;flex:0 0 auto;padding:6px 14px 8px;
  font-size:14.5px;color:var(--muted);white-space:nowrap;
  border-bottom:2px solid transparent;transition:all .2s ease;
}
.nav-cats a:hover{color:var(--brand);background:var(--brand-soft-2);border-radius:8px 8px 0 0;}
.nav-cats a.active{color:var(--brand);font-weight:500;border-bottom-color:var(--brand);}

/* ---------- 面包屑与文章头部 ---------- */
.page-main{padding:32px 0 0;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:22px;}
.crumb a{color:var(--brand);}
.crumb a:hover{text-decoration:underline;text-underline-offset:3px;}
.crumb .sep{color:#B4C0D2;}
.crumb .current{color:var(--muted);}
.article-head{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:32px 36px 28px;margin-bottom:32px;
}
.cat-label{font-size:13px;font-weight:500;color:var(--brand);letter-spacing:.4px;margin-bottom:12px;}
.article-title{
  font-size:clamp(26px,3.2vw,36px);line-height:1.28;letter-spacing:-.5px;
  margin-bottom:18px;word-break:break-word;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:13.5px;color:var(--muted);}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--brand-soft);color:var(--brand);
  font-size:12.5px;font-weight:500;padding:5px 10px;border-radius:6px;
}
.meta-dot{width:4px;height:4px;border-radius:50%;background:#C4CFDF;}
.font-ctrl{display:inline-flex;align-items:center;gap:4px;margin-left:auto;}
.font-ctrl span{font-size:12.5px;color:#8B99AC;margin-right:4px;}
.font-ctrl button{
  width:30px;height:30px;border-radius:8px;border:1px solid var(--line);
  background:#fff;color:var(--muted);font-size:13px;font-weight:500;cursor:pointer;
  transition:all .2s ease;line-height:1;
}
.font-ctrl button:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft-2);}

/* ---------- 正文布局 ---------- */
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;align-items:start;padding-bottom:var(--section);}
.article-main{min-width:0;}
.article-body{
  max-width:760px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  padding:36px 40px;font-size:16px;line-height:1.75;color:var(--text);
  word-break:break-word;overflow-wrap:break-word;
}
.article-body h2{
  font-size:24px;line-height:1.4;margin:38px 0 16px;padding-left:14px;
  border-left:4px solid var(--brand);letter-spacing:-.2px;
}
.article-body h3{
  font-size:19px;line-height:1.45;margin:30px 0 14px;padding-left:12px;
  border-left:3px solid var(--brand);color:#22304A;
}
.article-body h4{font-size:17px;margin:24px 0 12px;}
.article-body h2:first-child,.article-body h3:first-child{margin-top:0;}
.article-body p{margin:0 0 1em;}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:22px;}
.article-body ul{list-style:disc;}
.article-body ol{list-style:decimal;}
.article-body li{margin-bottom:8px;line-height:1.75;}
.article-body ul li::marker{color:var(--brand);}
.article-body ol li::marker{color:var(--brand);font-weight:500;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--brand-dark);}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;background:var(--brand-soft);
  border-left:4px solid var(--brand);border-radius:0 12px 12px 0;color:#27395A;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{border-radius:8px;margin:22px 0;box-shadow:0 4px 14px rgba(20,45,90,.08);}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13.5px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;display:block;overflow-x:auto;font-size:14.5px;}
.article-body th,.article-body td{padding:11px 14px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap;}
.article-body th{background:var(--brand-soft);color:var(--brand-dark);font-weight:500;}
.article-body tr:nth-child(even) td{background:#FAFCFF;}
.article-body pre{
  background:#0F1B2D;color:#E6EDF7;padding:18px 20px;border-radius:12px;
  overflow-x:auto;font-size:13.5px;line-height:1.65;margin:22px 0;
}
.article-body code{background:var(--brand-soft-2);color:var(--brand-dark);padding:2px 6px;border-radius:5px;font-size:14px;}
.article-body pre code{background:transparent;color:inherit;padding:0;}
.article-body hr{border:none;border-top:1px solid var(--line);margin:32px 0;}

/* 空态 */
.empty-state{
  text-align:center;padding:56px 24px;color:var(--muted);
  background:var(--card);border:1px dashed #D3DDEC;border-radius:var(--radius-card);
}
.empty-state i{font-size:34px;color:#B9C7DB;display:block;margin-bottom:14px;}
.empty-state p{font-size:15px;margin-bottom:18px;}

/* ---------- 标签 ---------- */
.tag-row{max-width:760px;display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:26px 0 0;}
.tag-row .tag-title{font-size:13.5px;color:var(--muted);margin-right:4px;}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:980px;
  background:#fff;border:1px solid var(--line);color:#41506A;font-size:13px;
  transition:all .2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-soft-2);}

/* ---------- 相关推荐卡片 ---------- */
.block-title-row{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin:44px 0 20px;}
.block-title{font-size:22px;letter-spacing:-.3px;}
.block-sub{font-size:14px;color:var(--muted);margin-top:6px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;}
.post-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease;height:100%;
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);}
.post-thumb{position:relative;aspect-ratio:16/9;background:#EDF1F8;overflow:hidden;}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.post-card:hover .post-thumb img{transform:scale(1.03);}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.post-card .badge-cat{align-self:flex-start;margin-bottom:10px;}
.post-card h3{font-size:16px;line-height:1.5;margin-bottom:8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-card:hover h3{color:var(--brand);}
.post-card p{font-size:13.5px;color:var(--muted);line-height:1.65;margin:0 0 14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12.5px;color:#8B99AC;}
.post-foot .arrow{color:var(--brand);transition:transform .2s ease;}
.post-card:hover .arrow{transform:translateX(3px);}

/* ---------- 侧栏 ---------- */
.article-aside{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px;}
.aside-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);padding:22px 22px 24px;
}
.aside-card h3{
  font-size:15px;font-weight:500;color:var(--text);margin-bottom:14px;
  display:flex;align-items:center;gap:8px;
}
.aside-card h3 i{color:var(--brand);font-size:14px;}
.toc-list li{margin-bottom:2px;}
.toc-list a{
  display:block;padding:8px 10px;border-radius:8px;font-size:14px;color:#41506A;
  border-left:2px solid transparent;transition:all .2s ease;line-height:1.5;
}
.toc-list a:hover{background:var(--brand-soft-2);color:var(--brand);border-left-color:var(--brand);}
.aside-links li{border-bottom:1px dashed #EAF0F8;}
.aside-links li:last-child{border-bottom:none;}
.aside-links a{display:block;padding:11px 0;font-size:14px;color:#374560;line-height:1.55;transition:color .2s ease;}
.aside-links a:hover{color:var(--brand);}
.aside-links i{color:var(--brand);font-size:11px;margin-right:8px;}
.aside-card .btn{width:100%;margin-top:16px;}
.aside-tip{background:var(--brand-soft);border:1px solid #D5E2FB;box-shadow:none;}
.aside-tip p{font-size:13.5px;line-height:1.7;color:#2C3F63;margin:0;}
.aside-tip strong{color:var(--brand-dark);font-weight:500;}

/* ---------- 返回与 CTA ---------- */
.back-row{max-width:760px;margin-top:28px;display:flex;flex-wrap:wrap;gap:12px;}
.cta-band{
  background:var(--brand-soft);border-radius:16px;padding:34px 38px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
  margin-bottom:var(--section);
}
.cta-band h2{font-size:22px;letter-spacing:-.3px;margin-bottom:8px;}
.cta-band p{font-size:14.5px;color:#3A4B6B;margin:0;max-width:640px;}
.cta-band .btn{flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.site-footer{background:#EEF3FC;border-top:1px solid #DDE7F5;padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:36px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:13.5px;line-height:1.75;color:#55637A;margin:0;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:500;margin-bottom:16px;color:var(--text);}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:#4B5A73;transition:color .2s ease;}
.footer-col ul a:hover{color:var(--brand);}
.footer-contact li{display:flex;gap:9px;font-size:13.5px;color:#4B5A73;margin-bottom:10px;line-height:1.6;}
.footer-contact i{color:var(--brand);font-size:13px;margin-top:4px;flex:0 0 auto;}
.footer-bottom{
  border-top:1px solid #D9E4F3;padding:20px 0 26px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:#66748C;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:32px;}
}
@media (max-width:991.98px){
  :root{--section:64px;}
  .nav-top{flex-wrap:wrap;height:auto;padding:12px 0;gap:12px;}
  .site-header.scrolled .nav-top{height:auto;}
  .nav-search{order:3;flex:1 1 100%;}
  .nav-search form{max-width:none;}
  .nav-actions{margin-left:auto;}
  .brand-sub{display:none;}
  .article-layout{grid-template-columns:minmax(0,1fr);}
  .article-aside{position:static;order:2;}
  .article-body{padding:28px 24px;}
  .article-head{padding:24px 22px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .cta-band{padding:28px 24px;}
}
@media (max-width:767.98px){
  .container{padding-left:20px;padding-right:20px;}
  .nav-top{gap:10px;}
  .nav-search input[type="search"]{padding-right:92px;font-size:13.5px;}
  .nav-search button{width:76px;font-size:13px;}
  .nav-cats{height:46px;}
  .nav-cats a{font-size:13.5px;padding:6px 11px 8px;}
  .article-title{font-size:26px;}
  .article-body{font-size:15.5px;padding:24px 20px;}
  .article-body h2{font-size:21px;}
  .article-body h3{font-size:18px;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .font-ctrl{margin-left:0;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .page-main{padding-top:22px;}
}
@media (max-width:519.98px){
  .brand-mark{width:34px;height:34px;font-size:17px;border-radius:10px;}
  .brand-name{font-size:16px;}
  .nav-actions .btn{font-size:13px;padding:8px 12px;}
  .article-head{padding:20px 18px;}
  .related-grid{gap:16px;}
  .tag{font-size:12.5px;padding:5px 12px;}
}

/* roulang page: category3 */
:root{
  --primary:#1257C9;
  --primary-dark:#0E46A6;
  --primary-soft:#E8F0FE;
  --accent:#F26522;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E3E9F2;
  --text:#1B2434;
  --muted:#5A6779;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(20,45,90,.05), 0 10px 24px rgba(20,45,90,.07);
  --shadow-hover:0 2px 4px rgba(20,45,90,.06), 0 16px 36px rgba(20,45,90,.10);
  --section-gap:96px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:3px;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;color:var(--text);}
p{margin:0;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin:0 auto;}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,padding .25s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(20,45,90,.08);}
.nav-top{
  display:flex;align-items:center;gap:24px;
  padding:14px 0;
  transition:padding .25s ease;
}
.site-header.is-scrolled .nav-top{padding:9px 0;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(140deg,var(--primary),#2C74E8);
  color:#fff;font-size:18px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 14px rgba(18,87,201,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:18px;font-weight:700;color:var(--text);letter-spacing:-.3px;}
.brand-sub{font-size:11px;color:var(--muted);margin-top:2px;}
.nav-search{flex:1;display:flex;justify-content:center;}
.nav-search form{
  position:relative;display:flex;align-items:center;
  width:100%;max-width:520px;
  background:#F2F5FA;border:1px solid var(--line);
  border-radius:980px;height:44px;padding:3px 4px 3px 16px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-search form:focus-within{
  background:#fff;border-color:var(--primary);
  box-shadow:0 0 0 4px rgba(18,87,201,.13);
}
.nav-search .search-icon{color:rgba(18,87,201,.6);font-size:15px;margin-right:10px;}
.nav-search input[type="search"]{
  flex:1;border:0;background:transparent;font-size:14px;color:var(--text);
  height:100%;outline:none;min-width:0;
}
.nav-search input::placeholder{color:#93A0B3;}
.nav-search button{
  border:0;height:36px;padding:0 18px;border-radius:980px;
  background:var(--primary);color:#fff;font-size:14px;font-weight:500;
  cursor:pointer;transition:background .2s ease,transform .2s ease;
}
.nav-search button:hover{background:var(--primary-dark);transform:translateY(-1px);}
.nav-actions{flex-shrink:0;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-btn);font-weight:500;
  border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(18,87,201,.22);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(18,87,201,.28);}
.btn-outline{background:#fff;color:var(--primary);border-color:#C3D6F5;}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary);transform:translateY(-1px);}
.btn-sm{font-size:14px;padding:9px 18px;}
.btn-lg{font-size:16px;padding:13px 26px;}
.nav-cats{
  display:flex;gap:8px;overflow-x:auto;
  padding:0 0 10px;
  scrollbar-width:none;
}
.nav-cats::-webkit-scrollbar{display:none;}
.nav-cats a{
  position:relative;flex:0 0 auto;
  font-size:14px;color:var(--muted);
  padding:8px 14px;border-radius:10px;
  white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-cats a:hover{color:var(--primary);background:var(--primary-soft);}
.nav-cats a.active{color:var(--primary);font-weight:700;background:var(--primary-soft);}
.nav-cats a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:22px 0 0;}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--muted);
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--primary);}
.crumb .sep{color:#B7C2D3;}
.crumb .now{color:var(--primary);font-weight:500;}

/* ---------- Hero ---------- */
.page-hero{padding:28px 0 34px;}
.hero-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:24px;
  box-shadow:var(--shadow-sm);
  padding:44px;
  display:grid;grid-template-columns:1.15fr .85fr;gap:44px;align-items:center;
  position:relative;overflow:hidden;
}
.hero-card::before{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(18,87,201,.10),rgba(18,87,201,0) 70%);
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:500;color:var(--primary);
  background:var(--primary-soft);border-radius:6px;
  padding:6px 12px;margin-bottom:18px;
}
.hero-card h1{
  font-size:44px;line-height:1.18;letter-spacing:-.5px;margin-bottom:16px;
}
.hero-card h1 em{font-style:normal;color:var(--primary);}
.hero-lead{font-size:16px;color:var(--muted);margin-bottom:26px;max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:26px;}
.hero-points{display:flex;flex-wrap:wrap;gap:18px;font-size:13px;color:var(--muted);}
.hero-points span{display:inline-flex;align-items:center;gap:7px;}
.hero-points i{color:var(--primary);font-size:13px;}
.hero-media{position:relative;}
.hero-media img{
  width:100%;height:340px;object-fit:cover;
  border-radius:var(--radius-img);
  box-shadow:0 2px 4px rgba(20,45,90,.06),0 18px 40px rgba(20,45,90,.14);
  background:#EEF1F6;
}
.hero-float{
  position:absolute;left:-18px;bottom:-20px;
  background:#fff;border:1px solid var(--line);border-radius:14px;
  box-shadow:var(--shadow-sm);padding:12px 16px;min-width:170px;
}
.hero-float b{display:block;font-size:20px;color:var(--primary);line-height:1.2;}
.hero-float span{font-size:12px;color:var(--muted);}

/* ---------- 锚点胶囊 ---------- */
.anchor-strip{
  position:sticky;top:118px;z-index:1010;
  margin:0 0 8px;
}
.anchor-inner{
  display:flex;gap:10px;overflow-x:auto;
  background:#fff;border:1px solid var(--line);border-radius:980px;
  padding:8px 12px;box-shadow:var(--shadow-sm);
  scrollbar-width:none;
}
.anchor-inner::-webkit-scrollbar{display:none;}
.anchor-inner a{
  flex:0 0 auto;font-size:14px;color:var(--muted);
  padding:7px 16px;border-radius:980px;white-space:nowrap;
  transition:background .2s ease,color .2s ease;
}
.anchor-inner a:hover{background:var(--primary-soft);color:var(--primary);}
.anchor-inner a.on{background:var(--primary);color:#fff;font-weight:500;}

/* ---------- 通用板块 ---------- */
.section{padding:var(--section-gap) 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head h2{font-size:30px;letter-spacing:-.3px;margin-bottom:12px;}
.section-head p{font-size:15px;color:var(--muted);}
.tag-line{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;color:var(--accent);font-weight:700;letter-spacing:1px;margin-bottom:12px;
  text-transform:uppercase;
}

/* ---------- 时间线 ---------- */
.timeline-wrap{
  background:var(--card);border:1px solid var(--line);border-radius:24px;
  padding:44px 44px 36px;box-shadow:var(--shadow-sm);
}
.timeline{position:relative;}
.timeline::before{
  content:"";position:absolute;left:23px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--primary),#BFD4F5);
  border-radius:2px;
}
.tl-item{
  position:relative;padding-left:76px;padding-bottom:38px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-num{
  position:absolute;left:0;top:0;
  width:48px;height:48px;border-radius:50%;
  background:#fff;border:2px solid var(--primary);
  color:var(--primary);font-size:16px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(18,87,201,.14);
  z-index:1;
}
.tl-item:hover .tl-num{background:var(--primary);color:#fff;}
.tl-num{transition:background .2s ease,color .2s ease;}
.tl-body h3{font-size:20px;margin-bottom:10px;display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.tl-body h3 .mini-badge{
  font-size:11px;font-weight:500;color:var(--primary);
  background:var(--primary-soft);border-radius:6px;padding:3px 9px;
}
.tl-body p{font-size:15px;color:var(--muted);margin-bottom:8px;}
.tl-body p:last-child{margin-bottom:0;}
.tl-result{
  margin-top:12px;display:inline-flex;align-items:flex-start;gap:8px;
  font-size:13px;color:var(--text);
  background:#F4F8FF;border-left:3px solid var(--primary);
  border-radius:0 8px 8px 0;padding:9px 14px;
}
.tl-result i{color:var(--primary);margin-top:3px;}
.timeline-foot{margin-top:34px;display:flex;flex-wrap:wrap;align-items:center;gap:16px;}
.timeline-foot .note{font-size:13px;color:var(--muted);}

/* ---------- 准备清单 ---------- */
.prep-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.prep-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:28px;box-shadow:var(--shadow-sm);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.prep-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CFDEF6;}
.prep-icon{
  width:46px;height:46px;border-radius:12px;background:var(--primary-soft);
  color:var(--primary);display:flex;align-items:center;justify-content:center;
  font-size:18px;margin-bottom:18px;
}
.prep-card:nth-child(2) .prep-icon{background:#FFF0E8;color:var(--accent);}
.prep-card h3{font-size:18px;margin-bottom:10px;}
.prep-card p{font-size:14px;color:var(--muted);}
.prep-card ul{margin-top:14px;display:flex;flex-direction:column;gap:8px;}
.prep-card ul li{position:relative;padding-left:20px;font-size:14px;color:var(--muted);}
.prep-card ul li::before{
  content:"";position:absolute;left:2px;top:9px;width:7px;height:7px;border-radius:50%;
  background:var(--primary);opacity:.75;
}

/* ---------- 适配区 ---------- */
.fit-section{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.fit-layout{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.fit-media img{width:100%;height:360px;object-fit:cover;border-radius:var(--radius-img);box-shadow:var(--shadow-sm);background:#EEF1F6;}
.fit-list{display:flex;flex-direction:column;gap:18px;margin-top:8px;}
.fit-item{
  display:flex;gap:16px;align-items:flex-start;
  padding:18px 20px;border:1px solid var(--line);border-radius:14px;background:var(--bg);
  transition:border-color .2s ease,background .2s ease;
}
.fit-item:hover{border-color:#C3D6F5;background:#fff;}
.fit-item .fi-ico{
  flex:0 0 38px;height:38px;border-radius:10px;background:#fff;border:1px solid var(--line);
  color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:15px;
}
.fit-item h3{font-size:16px;margin-bottom:4px;}
.fit-item p{font-size:14px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion-item{
  border:1px solid var(--line)!important;border-radius:14px!important;
  overflow:hidden;margin-bottom:14px;background:#fff;
  box-shadow:var(--shadow-sm);
}
.accordion-button{
  font-size:16px;font-weight:500;color:var(--text);
  background:#fff;padding:20px 24px;border-radius:14px!important;
  box-shadow:none!important;
}
.accordion-button:not(.collapsed){color:var(--primary);background:#fff;border-top:2px solid var(--primary);}
.accordion-button::after{
  background-image:none;
  content:"\2b";font-family:inherit;font-size:20px;line-height:1;
  color:var(--primary);transform:none;width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;background-color:var(--primary-soft);
  transition:transform .2s ease;
}
.accordion-button:not(.collapsed)::after{content:"\2212";transform:rotate(180deg);}
.accordion-body{
  font-size:15px;color:var(--muted);line-height:1.75;
  padding:0 24px 22px;
}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--primary-soft);
  border:1px solid #D3E1FA;
  border-radius:16px;
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:24px;margin-bottom:8px;letter-spacing:-.2px;}
.cta-band p{font-size:15px;color:var(--muted);max-width:640px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#EEF3FC;border-top:1px solid var(--line);padding:64px 0 0;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:44px;}
.footer-brand p{font-size:14px;color:var(--muted);margin-top:14px;line-height:1.75;max-width:320px;}
.footer-col h4{font-size:15px;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul a{font-size:14px;color:var(--muted);}
.footer-col ul a:hover{color:var(--primary);}
.footer-contact li{display:flex;gap:9px;font-size:14px;color:var(--muted);align-items:flex-start;}
.footer-contact i{color:var(--primary);font-size:13px;margin-top:5px;}
.footer-bottom{
  border-top:1px solid #DBE5F5;
  padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7A8798;
}

/* ---------- 浮动 CTA ---------- */
.float-cta{
  position:fixed;right:24px;bottom:28px;z-index:1040;
  display:inline-flex;align-items:center;gap:9px;
  background:var(--primary);color:#fff;
  padding:13px 22px;border-radius:980px;
  font-size:14px;font-weight:500;
  box-shadow:0 8px 20px rgba(18,87,201,.32);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s ease,transform .25s ease,background .2s ease,visibility .25s;
}
.float-cta.show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--primary-dark);color:#fff;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero-card{padding:38px;gap:32px;}
  .hero-card h1{font-size:38px;}
}
@media (max-width:991px){
  :root{--section-gap:64px;}
  .nav-top{flex-wrap:wrap;gap:14px;}
  .nav-search{order:3;flex-basis:100%;max-width:none;}
  .nav-search form{max-width:none;}
  .nav-actions{margin-left:auto;}
  .anchor-strip{top:150px;}
  .hero-card{grid-template-columns:1fr;padding:32px;}
  .hero-media img{height:280px;}
  .hero-float{left:auto;right:12px;bottom:-16px;}
  .hero-card h1{font-size:32px;}
  .timeline-wrap{padding:32px 26px;}
  .prep-grid{grid-template-columns:1fr 1fr;}
  .fit-layout{grid-template-columns:1fr;gap:32px;}
  .fit-media img{height:300px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding-left:20px;padding-right:20px;}
  .hero-card h1{font-size:28px;}
  .hero-card{padding:26px 22px;}
  .section-head h2{font-size:24px;}
  .prep-grid{grid-template-columns:1fr;}
  .cta-band{padding:28px 24px;}
  .timeline::before{left:19px;}
  .tl-item{padding-left:60px;padding-bottom:32px;}
  .tl-num{width:40px;height:40px;font-size:15px;}
  .anchor-strip{top:146px;}
  .float-cta{
    right:16px;left:16px;bottom:14px;justify-content:center;
    padding:15px 20px;font-size:15px;
  }
  body{padding-bottom:20px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:575px){
  .brand-sub{display:none;}
  .brand-name{font-size:16px;}
  .nav-actions .btn{font-size:13px;padding:8px 14px;}
  .hero-card h1{font-size:26px;}
  .hero-media img{height:220px;}
  .footer-grid{grid-template-columns:1fr;}
}

/* roulang page: category2 */
:root{
  --blue:#1257C9;
  --blue-dark:#0E46A6;
  --blue-soft:#E8F0FE;
  --blue-line:rgba(18,87,201,.18);
  --orange:#F26522;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --line:#E3E9F2;
  --ink:#1B2434;
  --muted:#5A6779;
  --footer-bg:#EEF3FC;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-pill:980px;
  --shadow-card:0 1px 2px rgba(20,45,90,.05),0 10px 24px rgba(20,45,90,.07);
  --shadow-card-hover:0 2px 4px rgba(20,45,90,.06),0 16px 36px rgba(20,45,90,.10);
  --shadow-float:0 8px 20px rgba(20,45,90,.18);
  --section-pad:96px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;object-fit:cover;}
a{color:var(--blue);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;}
a:hover{color:var(--blue-dark);}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--blue);
  outline-offset:3px;
  border-radius:6px;
}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3;}
h1{font-size:44px;line-height:1.18;letter-spacing:-.5px;}
h2{font-size:30px;line-height:1.28;}
h3{font-size:20px;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:var(--section-pad) 0;}
.section-sm{padding:56px 0;}
.section-head{margin-bottom:40px;max-width:760px;}
.section-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:500;letter-spacing:1px;
  color:var(--blue);background:var(--blue-soft);
  border-radius:6px;padding:6px 12px;margin-bottom:16px;
}
.section-head p{color:var(--muted);margin-top:14px;font-size:16px;}
.lead{font-size:17px;line-height:1.85;color:var(--muted);}

/* 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:500;line-height:1;border:1px solid transparent;
  cursor:pointer;transition:all .2s ease;white-space:nowrap;
}
.btn-primary{background:var(--blue);color:#fff;border-color:var(--blue);}
.btn-primary:hover{background:var(--blue-dark);border-color:var(--blue-dark);color:#fff;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);background:var(--blue-dark);}
.btn-outline{background:#fff;color:var(--blue);border-color:var(--blue-line);}
.btn-outline:hover{background:var(--blue-soft);color:var(--blue-dark);border-color:var(--blue);transform:translateY(-1px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;border-radius:8px;}
.btn-link-text{
  display:inline-flex;align-items:center;gap:6px;
  font-size:15px;font-weight:500;color:var(--blue);
  border-bottom:2px solid transparent;padding-bottom:2px;
}
.btn-link-text:hover{border-bottom-color:var(--blue);color:var(--blue-dark);}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{box-shadow:0 4px 16px rgba(20,45,90,.08);}
.nav-top{
  display:flex;align-items:center;gap:24px;
  height:72px;transition:height .25s ease;
}
.site-header.is-scrolled .nav-top{height:64px;}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:var(--blue);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;
  box-shadow:0 6px 14px rgba(18,87,201,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:18px;font-weight:500;letter-spacing:.2px;color:var(--ink);}
.brand-sub{font-size:12px;color:var(--muted);font-weight:400;margin-top:2px;}
.nav-search{flex:1 1 auto;display:flex;justify-content:center;min-width:0;}
.nav-search form{
  position:relative;display:flex;align-items:center;
  width:100%;max-width:540px;height:44px;
  background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-pill);
  padding:0 6px 0 44px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.nav-search form:focus-within{
  border-color:var(--blue);
  box-shadow:0 0 0 4px rgba(18,87,201,.14);
}
.search-icon{
  position:absolute;left:17px;font-size:14px;
  color:rgba(18,87,201,.6);pointer-events:none;
}
.nav-search input[type="search"]{
  flex:1 1 auto;min-width:0;height:100%;border:0;background:transparent;
  font-size:14px;color:var(--ink);outline:none;
}
.nav-search input[type="search"]::placeholder{color:#93A0B4;}
.nav-search button{
  flex:0 0 auto;height:34px;padding:0 18px;border:0;border-radius:var(--radius-pill);
  background:var(--blue);color:#fff;font-size:13px;font-weight:500;
  cursor:pointer;transition:background-color .2s ease;
}
.nav-search button:hover{background:var(--blue-dark);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-cats{
  display:flex;align-items:center;gap:8px;
  height:48px;overflow-x:auto;overflow-y:hidden;
  scrollbar-width:none;
}
.nav-cats::-webkit-scrollbar{display:none;}
.nav-cats a{
  position:relative;flex:0 0 auto;
  padding:6px 14px;border-radius:8px;
  font-size:14px;font-weight:500;color:var(--muted);
  white-space:nowrap;transition:all .2s ease;
}
.nav-cats a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-2px;height:2px;
  background:var(--blue);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-cats a:hover{color:var(--blue);background:var(--blue-soft);}
.nav-cats a.active{color:var(--blue);font-weight:700;background:transparent;}
.nav-cats a.active::after{transform:scaleX(1);}

/* 面包屑 */
.breadcrumb-bar{padding:20px 0 0;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin:0;padding:0;background:transparent;
  font-size:13px;color:var(--muted);
}
.breadcrumb .sep{color:#B9C4D6;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--blue);}
.breadcrumb .current{color:var(--ink);font-weight:500;}

/* 分类 Hero */
.cat-hero{
  display:grid;grid-template-columns:1.08fr .92fr;
  gap:56px;align-items:center;
  padding:48px 0 64px;
}
.cat-hero .badge-cat{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--blue-soft);color:var(--blue);
  font-size:13px;font-weight:500;
  padding:7px 14px;border-radius:6px;margin-bottom:20px;
}
.cat-hero h1{margin-bottom:20px;}
.cat-hero h1 .hl{color:var(--blue);}
.cat-hero .hero-desc{
  font-size:17px;line-height:1.85;color:var(--muted);
  max-width:560px;margin-bottom:28px;
}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;margin-bottom:32px;}
.hero-points li{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;color:var(--ink);
}
.hero-points i{color:var(--blue);font-size:13px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-visual{position:relative;}
.hero-visual .hero-img{
  width:100%;aspect-ratio:4/3;
  border-radius:var(--radius-img);
  background:#E9EEF7;
  box-shadow:0 2px 4px rgba(20,45,90,.06),0 24px 48px rgba(20,45,90,.14);
}
.hero-float{
  position:absolute;left:-22px;bottom:-26px;
  background:#fff;border:1px solid var(--line);
  border-radius:14px;padding:16px 20px;
  box-shadow:var(--shadow-card);
  display:flex;align-items:center;gap:14px;
  max-width:260px;
}
.hero-float .num{font-size:24px;font-weight:700;color:var(--blue);line-height:1;}
.hero-float span{font-size:13px;color:var(--muted);line-height:1.5;}

/* 筛选胶囊条 */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:18px 0 22px;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 18px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--line);
  font-size:14px;color:var(--muted);font-weight:500;
  transition:all .2s ease;
}
.chip i{font-size:12px;color:var(--blue);opacity:.8;}
.chip:hover{border-color:var(--blue);color:var(--blue);background:var(--blue-soft);}
.chip.is-on{background:var(--blue);border-color:var(--blue);color:#fff;}
.chip.is-on i{color:#fff;opacity:1;}

/* 双列内容卡网格 */
.topic-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.topic-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:28px;
  box-shadow:var(--shadow-card);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.topic-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-card-hover);
  border-color:var(--blue-line);
}
.topic-card.is-featured{border-color:rgba(18,87,201,.4);}
.topic-card .card-top{display:flex;align-items:center;gap:14px;margin-bottom:16px;}
.card-icon{
  width:44px;height:44px;flex:0 0 44px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--blue-soft);color:var(--blue);font-size:18px;
}
.topic-card.is-featured .card-icon{background:var(--blue);color:#fff;}
.card-tag{
  font-size:12px;font-weight:500;color:var(--blue);
  background:var(--blue-soft);border-radius:6px;padding:3px 9px;
}
.topic-card h3{font-size:19px;margin-bottom:10px;}
.topic-card .card-desc{color:var(--muted);font-size:15px;line-height:1.75;margin-bottom:20px;}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  gap:12px;padding-top:18px;border-top:1px dashed var(--line);
}
.card-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:500;color:var(--blue);
}
.card-link i{transition:transform .2s ease;}
.card-link:hover{color:var(--blue-dark);}
.card-link:hover i{transform:translateX(2px);}
.card-step{font-size:12px;color:#93A0B4;}

/* 图文清单 */
.checklist-block{
  display:grid;grid-template-columns:.95fr 1.05fr;
  gap:56px;align-items:center;
}
.checklist-block .visual img{
  width:100%;aspect-ratio:4/3;border-radius:var(--radius-img);
  background:#E9EEF7;box-shadow:var(--shadow-card);
}
.check-list{margin-top:26px;display:grid;gap:18px;}
.check-list li{display:flex;gap:14px;align-items:flex-start;}
.check-list .tick{
  width:26px;height:26px;flex:0 0 26px;border-radius:50%;
  background:var(--blue-soft);color:var(--blue);
  display:inline-flex;align-items:center;justify-content:center;font-size:11px;margin-top:3px;
}
.check-list strong{display:block;font-size:15px;font-weight:700;margin-bottom:2px;}
.check-list p{font-size:14px;color:var(--muted);margin:0;line-height:1.7;}

/* 数据条 */
.stat-strip{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1px;background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;margin-top:64px;
}
.stat-item{background:#fff;padding:28px 26px;}
.stat-item .num{font-size:30px;font-weight:700;color:var(--blue);line-height:1.1;}
.stat-item .num small{font-size:14px;font-weight:500;color:var(--muted);margin-left:4px;}
.stat-item p{margin:8px 0 0;font-size:14px;color:var(--muted);line-height:1.65;}

/* FAQ */
.faq-wrap{max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);
  border-radius:14px;margin-bottom:14px;padding:0 24px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item:hover{border-color:var(--blue-line);}
.faq-item[open]{border-color:rgba(18,87,201,.35);box-shadow:var(--shadow-card);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 0;font-size:16px;font-weight:500;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary .faq-sign{
  width:26px;height:26px;flex:0 0 26px;border-radius:50%;
  background:var(--blue-soft);color:var(--blue);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:11px;transition:transform .25s ease,background-color .25s ease,color .25s ease;
}
.faq-item[open] summary .faq-sign{transform:rotate(45deg);background:var(--blue);color:#fff;}
.faq-answer{
  border-top:2px solid var(--blue-line);
  padding:16px 0 22px;font-size:15px;line-height:1.8;color:var(--muted);
}

/* 页尾 CTA */
.cta-band{
  background:var(--blue-soft);
  border:1px solid rgba(18,87,201,.16);
  border-radius:16px;
  padding:40px 44px;
  display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:26px;margin-bottom:8px;}
.cta-band p{color:var(--muted);font-size:15px;margin:0;max-width:620px;}

/* 页脚 */
.site-footer{
  background:var(--footer-bg);
  border-top:1px solid var(--line);
  padding:64px 0 0;margin-top:var(--section-pad);
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;padding-bottom:44px;
}
.footer-brand p{font-size:14px;color:var(--muted);line-height:1.8;margin-top:16px;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:16px;color:var(--ink);}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{font-size:14px;color:var(--muted);}
.footer-col a:hover{color:var(--blue);}
.footer-contact li{
  display:flex;align-items:flex-start;gap:10px;
  font-size:14px;color:var(--muted);line-height:1.6;
}
.footer-contact i{color:var(--blue);font-size:13px;margin-top:4px;}
.footer-bottom{
  border-top:1px solid rgba(27,36,52,.08);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:10px 24px;
  justify-content:space-between;
  font-size:13px;color:var(--muted);
}

/* 浮动 CTA */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1040;
  display:inline-flex;align-items:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-pill);
  background:var(--blue);color:#fff;font-size:14px;font-weight:500;
  box-shadow:var(--shadow-float);
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease,background-color .2s ease;
}
.float-cta.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta:hover{background:var(--blue-dark);color:#fff;}

/* 响应式 */
@media (max-width:1199px){
  h1{font-size:40px;}
  .cat-hero{gap:40px;}
  .checklist-block{gap:40px;}
}
@media (max-width:1024px){
  :root{--section-pad:72px;}
  .cat-hero{grid-template-columns:1fr;gap:44px;}
  .cat-hero .hero-desc{max-width:none;}
  .hero-visual{max-width:560px;}
  .hero-float{left:auto;right:0;}
  .checklist-block{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .nav-search form{max-width:420px;}
}
@media (max-width:991px){
  .brand-sub{display:none;}
  .nav-top{gap:16px;}
  .topic-grid{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:1fr;}
  .cta-band{padding:32px 28px;}
}
@media (max-width:768px){
  :root{--section-pad:56px;}
  h1{font-size:30px;}
  h2{font-size:23px;}
  .container{padding-left:20px;padding-right:20px;}
  .nav-top{flex-wrap:wrap;height:auto;padding:12px 0;row-gap:12px;}
  .site-header.is-scrolled .nav-top{height:auto;}
  .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:16px;}
  .brand-name{font-size:16px;}
  .nav-search{order:3;flex:1 1 100%;justify-content:stretch;}
  .nav-search form{max-width:none;}
  .nav-actions{margin-left:auto;}
  .nav-cats{height:auto;padding:6px 0 10px;}
  .cat-hero{padding:32px 0 48px;}
  .hero-float{position:static;margin-top:16px;max-width:none;left:auto;right:auto;}
  .filter-bar{gap:8px;padding:14px 0 18px;}
  .chip{height:34px;padding:0 14px;font-size:13px;}
  .topic-card{padding:22px;}
  .stat-strip{margin-top:40px;}
  .cta-band{flex-direction:column;align-items:flex-start;gap:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:36px;}
  .site-footer{padding-top:48px;margin-top:56px;}
  .float-cta{
    right:0;left:0;bottom:0;height:56px;border-radius:0;
    justify-content:center;width:100%;
  }
  body{padding-bottom:56px;}
}
@media (max-width:520px){
  h1{font-size:26px;}
  .btn{width:100%;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .section-head p{font-size:15px;}
  .topic-card h3{font-size:17px;}
  .faq-item{padding:0 18px;}
  .faq-item summary{font-size:15px;}
}

/* roulang page: category4 */
:root{
  --primary:#1257C9;
  --primary-dark:#0E46A6;
  --primary-light:#E8F0FE;
  --primary-soft:#EEF3FC;
  --accent:#F26522;
  --bg:#F6F8FC;
  --card:#FFFFFF;
  --border:#E3E9F2;
  --text:#1B2434;
  --muted:#5A6779;
  --success:#1F9D63;
  --danger-bg:#FDECEC;
  --danger:#C0392B;
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --radius-badge:6px;
  --shadow-card:0 1px 2px rgba(20,45,90,.05),0 10px 24px rgba(20,45,90,.07);
  --shadow-hover:0 2px 4px rgba(20,45,90,.06),0 16px 36px rgba(20,45,90,.10);
  --shadow-float:0 8px 20px rgba(18,87,201,.28);
  --space-section:96px;
  --font-cn:"PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background:var(--bg);
  font-weight:400;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease;}
a:hover{color:var(--primary-dark);text-decoration:none;}
h1,h2,h3,h4,h5{margin:0;font-weight:700;color:var(--text);}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}
.visually-hidden{
  position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;
  overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.section{padding:var(--space-section) 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;font-weight:500;letter-spacing:.04em;
  color:var(--primary);background:var(--primary-light);
  padding:6px 12px;border-radius:var(--radius-badge);margin-bottom:16px;
}
.section-head h2{font-size:30px;line-height:1.3;margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;margin:0;}
.lead{color:var(--muted);font-size:16.5px;}

/* ============ Header ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;border-bottom:1px solid var(--border);
  transition:box-shadow .2s ease,padding .2s ease;
}
.site-header.scrolled{box-shadow:0 4px 16px rgba(20,45,90,.08);}
.nav-top{display:flex;align-items:center;gap:20px;height:72px;transition:height .2s ease;}
.site-header.scrolled .nav-top{height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:linear-gradient(140deg,var(--primary),#2B72E8);
  color:#fff;font-size:19px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(18,87,201,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:18px;font-weight:500;color:var(--text);white-space:nowrap;}
.brand-sub{font-size:12px;color:var(--muted);margin-top:3px;}
.nav-search{flex:1 1 auto;max-width:560px;margin:0 auto;position:relative;}
.nav-search form{position:relative;display:flex;align-items:center;}
.nav-search .search-icon{
  position:absolute;left:18px;font-size:15px;color:rgba(18,87,201,.6);pointer-events:none;
}
.nav-search input[type="search"]{
  width:100%;height:44px;border-radius:980px;border:1px solid var(--border);
  background:#FBFCFE;padding:0 104px 0 46px;font-size:14.5px;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.nav-search input::placeholder{color:#93A0B4;}
.nav-search input[type="search"]:focus{
  outline:none;border-color:var(--primary);background:#fff;
  box-shadow:0 0 0 4px rgba(18,87,201,.12);
}
.nav-search button{
  position:absolute;right:5px;top:5px;bottom:5px;
  border:0;border-radius:980px;background:var(--primary);color:#fff;
  font-size:14px;font-weight:500;padding:0 20px;cursor:pointer;
  transition:background .2s ease,transform .2s ease;
}
.nav-search button:hover{background:var(--primary-dark);}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.search-toggle{
  display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--border);
  background:#fff;color:var(--primary);align-items:center;justify-content:center;cursor:pointer;
}
.nav-cats{
  display:flex;align-items:center;gap:4px;height:48px;
  overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.nav-cats::-webkit-scrollbar{display:none;}
.nav-cats a{
  position:relative;flex:0 0 auto;padding:6px 14px;border-radius:8px;
  font-size:14.5px;color:var(--muted);white-space:nowrap;
  transition:color .2s ease,background .2s ease;
}
.nav-cats a:hover{color:var(--primary);background:var(--primary-light);}
.nav-cats a.active{color:var(--primary);font-weight:500;background:transparent;}
.nav-cats a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:-1px;height:2px;
  background:var(--primary);border-radius:2px;
}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;border:1px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(18,87,201,.22);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(18,87,201,.26);}
.btn-outline{background:#fff;color:var(--primary);border-color:rgba(18,87,201,.38);}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary);}
.btn-sm{height:38px;padding:0 16px;font-size:14px;border-radius:9px;}
.btn-ghost{background:var(--primary-light);color:var(--primary-dark);border-color:transparent;}
.btn-ghost:hover{background:#DCE9FD;color:var(--primary-dark);}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:500;color:var(--primary);}
.link-arrow i{transition:transform .2s ease;font-size:12px;}
.link-arrow:hover{text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:2px;}
.link-arrow:hover i{transform:translateX(3px);}

/* ============ Breadcrumb ============ */
.breadcrumb-bar{background:#fff;border-bottom:1px solid var(--border);}
.breadcrumb-list{display:flex;align-items:center;gap:10px;flex-wrap:wrap;padding:16px 0;font-size:13.5px;color:var(--muted);}
.breadcrumb-list a{color:var(--muted);}
.breadcrumb-list a:hover{color:var(--primary);}
.breadcrumb-list i{font-size:10px;color:#B4BFCE;}
.breadcrumb-list .current{color:var(--primary);font-weight:500;}

/* ============ Hero ============ */
.page-hero{background:linear-gradient(180deg,#F2F6FD 0%,#F6F8FC 100%);padding:64px 0 72px;}
.hero-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center;}
.page-hero h1{font-size:44px;line-height:1.18;letter-spacing:-.5px;margin-bottom:18px;}
.page-hero .hero-sub{font-size:17px;color:var(--muted);max-width:560px;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;
  background:#fff;border:1px solid var(--border);color:var(--muted);
  padding:6px 12px;border-radius:980px;
}
.tag i{color:var(--primary);font-size:12px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;}
.hero-visual{position:relative;}
.hero-visual .hero-img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);
  box-shadow:0 2px 4px rgba(20,45,90,.06),0 22px 44px rgba(20,45,90,.14);
  background:#E7ECF5;
}
.hero-badge-card{
  position:absolute;left:-18px;bottom:22px;background:#fff;border-radius:14px;
  padding:14px 18px;box-shadow:var(--shadow-card);border:1px solid var(--border);
  display:flex;align-items:center;gap:12px;max-width:250px;
}
.hero-badge-card .num{font-size:22px;font-weight:700;color:var(--primary);line-height:1;}
.hero-badge-card .txt{font-size:12.5px;color:var(--muted);line-height:1.4;}

/* ============ Anchor pills ============ */
.anchor-bar{
  position:sticky;top:72px;z-index:1020;background:#fff;
  border-bottom:1px solid var(--border);box-shadow:0 2px 10px rgba(20,45,90,.04);
}
.site-header.scrolled + .anchor-bar{top:64px;}
.anchor-bar .container{display:flex;align-items:center;gap:10px;height:60px;overflow-x:auto;scrollbar-width:none;}
.anchor-bar .container::-webkit-scrollbar{display:none;}
.anchor-bar .bar-label{font-size:13px;color:var(--muted);flex:0 0 auto;margin-right:6px;}
.anchor-bar a{
  flex:0 0 auto;font-size:13.5px;padding:7px 14px;border-radius:980px;
  background:#F4F7FC;color:var(--muted);border:1px solid transparent;
  transition:all .2s ease;
}
.anchor-bar a:hover,.anchor-bar a.is-active{background:var(--primary-light);color:var(--primary-dark);border-color:rgba(18,87,201,.24);font-weight:500;}

/* ============ Table ============ */
.table-wrap{
  background:var(--card);border-radius:var(--radius-card);border:1px solid var(--border);
  box-shadow:var(--shadow-card);overflow:hidden;
}
.table-scroll{overflow-x:auto;}
table.compare{
  width:100%;border-collapse:collapse;min-width:720px;font-size:15px;
}
table.compare thead th{
  background:var(--primary-light);color:var(--primary-dark);
  font-weight:500;font-size:13.5px;letter-spacing:.02em;text-align:left;
  padding:16px 24px;border-bottom:1px solid rgba(18,87,201,.16);white-space:nowrap;
}
table.compare thead th:first-child{width:42%;}
table.compare tbody td{
  padding:18px 24px;border-bottom:1px solid var(--border);vertical-align:top;
  color:var(--text);line-height:1.65;
}
table.compare tbody tr:nth-child(even){background:#F8FAFE;}
table.compare tbody tr:hover{background:#F2F7FF;}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare .phen{display:flex;gap:12px;align-items:flex-start;font-weight:500;}
table.compare .phen i{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;background:var(--primary-light);
  color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:12px;margin-top:2px;
}
table.compare .fix{color:var(--muted);}
.table-note{
  padding:16px 24px;background:#FBFCFE;border-top:1px solid var(--border);
  font-size:13.5px;color:var(--muted);display:flex;gap:10px;align-items:flex-start;
}
.table-note i{color:var(--accent);margin-top:3px;}

/* ============ Param cards ============ */
.param-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:32px;}
.param-card{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.param-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#CFDDF4;}
.param-card .p-icon{
  width:42px;height:42px;border-radius:12px;background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:17px;margin-bottom:16px;
}
.param-card h3{font-size:18px;margin-bottom:6px;}
.param-card .p-desc{font-size:13.5px;color:var(--muted);margin-bottom:16px;}
.param-list li{
  display:flex;justify-content:space-between;gap:14px;font-size:14px;
  padding:9px 0;border-bottom:1px dashed var(--border);
}
.param-list li:last-child{border-bottom:0;}
.param-list .k{color:var(--muted);flex:0 0 auto;}
.param-list .v{color:var(--text);font-weight:500;text-align:right;}

/* ============ Order list block ============ */
.order-band{
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-card);
  padding:32px;box-shadow:var(--shadow-card);margin-top:36px;
}
.order-band h3{font-size:19px;margin-bottom:8px;}
.order-band > p{color:var(--muted);font-size:14.5px;margin-bottom:22px;}
.order-row{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.order-item{
  background:#FBFCFE;border:1px solid var(--border);border-radius:12px;padding:18px 18px;
  transition:background .2s ease,border-color .2s ease;
}
.order-item:hover{background:var(--primary-light);border-color:rgba(18,87,201,.24);}
.order-item .idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:26px;height:26px;border-radius:8px;background:var(--primary);color:#fff;
  font-size:12.5px;font-weight:500;margin-bottom:12px;
}
.order-item strong{display:block;font-size:15px;font-weight:500;margin-bottom:6px;}
.order-item span{font-size:13px;color:var(--muted);line-height:1.6;display:block;}

/* ============ FAQ ============ */
.faq-section{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.faq-grid{display:grid;grid-template-columns:.78fr 1.22fr;gap:48px;align-items:start;}
.faq-aside h2{font-size:30px;line-height:1.3;margin-bottom:14px;}
.faq-aside p{color:var(--muted);font-size:15.5px;margin-bottom:22px;}
.faq-aside .aside-card{
  background:var(--primary-soft);border-radius:14px;padding:20px 22px;border:1px solid #DCE6F7;
}
.faq-aside .aside-card h3{font-size:15px;margin-bottom:8px;}
.faq-aside .aside-card p{font-size:13.5px;margin:0;color:#4D5B70;}
.accordion{--bs-accordion-border-color:var(--border);}
.accordion-item{
  border:1px solid var(--border)!important;border-radius:12px!important;
  background:#fff;margin-bottom:14px;overflow:hidden;
  box-shadow:0 1px 2px rgba(20,45,90,.04);transition:box-shadow .2s ease,border-color .2s ease;
}
.accordion-item:hover{box-shadow:var(--shadow-card);}
.accordion-button{
  font-size:16px;font-weight:500;color:var(--text);background:#fff;
  padding:18px 22px;box-shadow:none!important;border-radius:12px!important;
  position:relative;
}
.accordion-button:not(.collapsed){color:var(--primary-dark);background:#fff;}
.accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;right:0;top:0;height:2px;background:var(--primary);
}
.accordion-button::after{
  background-image:none;content:"\2b";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:14px;color:var(--primary);width:28px;height:28px;border-radius:8px;
  background:var(--primary-light);display:flex;align-items:center;justify-content:center;
  transition:transform .2s ease,background .2s ease;transform:none;
}
.accordion-button:not(.collapsed)::after{content:"\f068";transform:none;background:#DCE9FD;}
.accordion-button:focus{outline:2px solid var(--primary);outline-offset:-2px;}
.accordion-body{
  padding:0 22px 20px;font-size:14.8px;line-height:1.75;color:var(--muted);
}
.accordion-body strong{color:var(--text);font-weight:500;}

/* ============ CTA ============ */
.cta-band{
  background:var(--primary-soft);border:1px solid #DCE6F7;border-radius:var(--radius-card);
  padding:40px 44px;display:flex;align-items:center;justify-content:space-between;gap:32px;
}
.cta-band h2{font-size:26px;line-height:1.35;margin-bottom:10px;}
.cta-band p{color:#4D5B70;font-size:15px;margin:0;max-width:640px;}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}

/* ============ Footer ============ */
.site-footer{background:var(--primary-soft);border-top:1px solid #DCE6F7;padding:64px 0 0;margin-top:var(--space-section);}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand .brand{margin-bottom:14px;}
.footer-brand p{font-size:14px;color:#4D5B70;line-height:1.75;margin:0;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:500;margin-bottom:16px;color:var(--text);}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{font-size:14px;color:#4D5B70;}
.footer-col ul li a:hover{color:var(--primary);text-decoration:underline;text-underline-offset:3px;}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:#4D5B70;margin-bottom:12px;}
.footer-contact li i{color:var(--primary);font-size:13px;margin-top:5px;}
.footer-bottom{
  border-top:1px solid #D8E3F4;padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#61708A;
}

/* ============ Float CTA ============ */
.float-cta{
  position:fixed;right:24px;bottom:26px;z-index:1040;
  display:inline-flex;align-items:center;gap:8px;
  height:50px;padding:0 22px;border-radius:980px;
  background:var(--primary);color:#fff;font-size:14.5px;font-weight:500;
  box-shadow:var(--shadow-float);
  opacity:0;transform:translateY(14px);pointer-events:none;
  transition:opacity .25s ease,transform .25s ease,background .2s ease;
}
.float-cta.show{opacity:1;transform:translateY(0);pointer-events:auto;}
.float-cta:hover{background:var(--primary-dark);color:#fff;}

/* ============ Reveal ============ */
.reveal{opacity:0;transform:translateY(18px);transition:opacity .5s ease,transform .5s ease;}
.reveal.in{opacity:1;transform:translateY(0);}

/* ============ Responsive ============ */
@media (max-width:1199.98px){
  .page-hero h1{font-size:40px;}
  .hero-grid{gap:36px;}
}
@media (max-width:991.98px){
  :root{--space-section:72px;}
  .nav-search{max-width:none;}
  .brand-sub{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero h1{font-size:34px;}
  .page-hero{padding:48px 0 56px;}
  .hero-visual .hero-img{aspect-ratio:16/9;}
  .hero-badge-card{left:14px;bottom:14px;max-width:220px;}
  .param-grid{grid-template-columns:1fr 1fr;}
  .order-row{grid-template-columns:1fr 1fr;}
  .faq-grid{grid-template-columns:1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section-head h2,.faq-aside h2{font-size:25px;}
  .anchor-bar .container{height:54px;}
}
@media (max-width:767.98px){
  .container{padding:0 20px;}
  .nav-top{height:auto;padding:12px 0;flex-wrap:wrap;gap:12px;}
  .site-header.scrolled .nav-top{height:auto;}
  .brand-name{font-size:16px;}
  .nav-search{order:4;flex:1 1 100%;max-width:none;display:none;margin:0;}
  .nav-search.open{display:block;}
  .nav-search input[type="search"]{padding-right:92px;font-size:14px;}
  .nav-search button{padding:0 16px;font-size:13.5px;}
  .nav-actions{margin-left:auto;}
  .search-toggle{display:flex;}
  .nav-cats{height:44px;}
  .anchor-bar{top:0;}
  .site-header.scrolled + .anchor-bar{top:0;}
  .page-hero h1{font-size:29px;letter-spacing:-.3px;}
  .page-hero .hero-sub{font-size:15.5px;}
  .section{padding:56px 0;}
  .section-head h2,.faq-aside h2{font-size:23px;}
  .param-grid{grid-template-columns:1fr;}
  .order-row{grid-template-columns:1fr;}
  .order-band{padding:24px 20px;}
  table.compare thead th,table.compare tbody td{padding:14px 16px;}
  .table-scroll{overflow-x:auto;-webkit-overflow-scrolling:touch;}
  .cta-band{padding:26px 22px;}
  .cta-band h2{font-size:21px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;padding-bottom:32px;}
  .footer-brand p{max-width:none;}
  .footer-bottom{flex-direction:column;gap:8px;font-size:12.5px;}
  .site-footer{padding-top:48px;margin-top:56px;}
  body{padding-bottom:56px;}
  .float-cta{
    left:0;right:0;bottom:0;height:56px;border-radius:0;justify-content:center;
    transform:translateY(100%);
  }
  .float-cta.show{transform:translateY(0);}
}
@media (max-width:575.98px){
  .page-hero h1{font-size:26px;}
  .hero-actions .btn{flex:1 1 100%;}
  .hero-tags .tag{font-size:12px;}
  .hero-badge-card{padding:12px 14px;max-width:200px;}
  .hero-badge-card .num{font-size:18px;}
  .accordion-button{font-size:15px;padding:16px 18px;}
  .accordion-body{padding:0 18px 18px;font-size:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;}
  html{scroll-behavior:auto;}
}