/* roulang page: index */
:root{
  --primary:#176B87;
  --primary-dark:#11526A;
  --primary-light:#E8F3F7;
  --accent:#E58A4A;
  --bg:#F6F9FB;
  --surface:#FFFFFF;
  --text:#1B2A32;
  --muted:#5C7480;
  --border:#D9E5EC;
  --border-soft:#E2ECF1;
  --success:#2E9B78;
  --warn:#D9822B;
  --r-btn:10px;
  --r-card:14px;
  --r-img:12px;
  --shadow:0 6px 20px rgba(22,35,43,.06);
  --shadow-hover:0 12px 28px rgba(22,35,43,.10);
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,background-color .18s ease,border-color .18s ease}
a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px}
h1,h2,h3,h4,h5,h6{margin:0 0 .55em;font-weight:700;line-height:1.32;color:var(--text);letter-spacing:-.005em}
h1{font-size:44px}
h2{font-size:30px}
h3{font-size:22px}
h4{font-size:18px}
h5{font-size:16px}
h6{font-size:14px}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
input,select,textarea{font-family:inherit;font-size:15px}
hr{border:0;border-top:1px solid var(--border);margin:0}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:84px 0}
.section--tight{padding:64px 0}
.section--alt{background:#fff;border-top:1px solid var(--border-soft);border-bottom:1px solid var(--border-soft)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.section-head h2{margin-bottom:8px}
.section-desc{color:var(--muted);font-size:15.5px;max-width:660px;margin:0}
.section-link{font-size:14.5px;font-weight:500;white-space:nowrap}

/* ---------- 顶部导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(255,255,255,.97);border-bottom:1px solid var(--border-soft);backdrop-filter:blur(10px)}
.topbar-inner{display:flex;align-items:center;gap:22px;height:78px}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;font-weight:700;font-size:19px;color:var(--text);letter-spacing:-.01em}
.brand:hover{text-decoration:none;color:var(--primary-dark)}
.brand-mark{width:38px;height:38px;border-radius:11px;background:var(--primary);color:#fff;display:grid;place-items:center;font-size:17px;font-weight:700;box-shadow:0 4px 12px rgba(23,107,135,.26);position:relative;flex:0 0 auto}
.brand-mark::after{content:"";position:absolute;right:5px;bottom:5px;width:7px;height:7px;border-radius:2px;background:var(--accent)}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text small{font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.12em;margin-top:3px}

.search-wrap{flex:1 1 auto;max-width:560px;position:relative}
.search-form{display:flex;align-items:center;gap:8px;background:var(--bg);border:1px solid var(--border);border-radius:999px;padding:5px 6px 5px 16px;transition:border-color .18s,box-shadow .18s,background-color .18s}
.search-form:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(23,107,135,.10)}
.search-icon{color:var(--muted);flex:0 0 auto}
.search-input{flex:1 1 auto;min-width:0;border:0;background:transparent;height:38px;font-size:15px;color:var(--text);outline:none}
.search-input::placeholder{color:#8FA5B0}
.search-input::-webkit-search-cancel-button{-webkit-appearance:none}
.search-submit{flex:0 0 auto;height:38px;padding:0 20px;border:0;border-radius:999px;background:var(--primary);color:#fff;font-size:14.5px;font-weight:500;cursor:pointer;transition:background-color .18s,transform .18s}
.search-submit:hover{background:var(--primary-dark)}
.search-submit:active{transform:translateY(1px)}

.topbar-actions{display:flex;align-items:center;gap:14px;margin-left:auto;flex:0 0 auto}
.link-quiet{font-size:14px;color:var(--muted)}
.link-quiet:hover{color:var(--primary)}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:500;border:1px solid transparent;cursor:pointer;transition:all .18s ease;white-space:nowrap}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 4px 12px rgba(23,107,135,.22)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:0 8px 18px rgba(23,107,135,.28)}
.btn-primary:active{transform:translateY(1px)}
.btn-ghost{background:#fff;border-color:var(--primary);color:var(--primary)}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);text-decoration:none;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-light{background:#fff;color:var(--primary-dark);border-color:rgba(255,255,255,.5)}
.btn-light:hover{background:var(--primary-light);color:var(--primary-dark);text-decoration:none;transform:translateY(-1px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;text-decoration:none}

.search-toggle{display:none;width:42px;height:42px;border-radius:50%;border:1px solid var(--border);background:#fff;color:var(--primary);align-items:center;justify-content:center;cursor:pointer}

.navstrip{border-top:1px solid var(--border-soft);background:#fff}
.nav-scroll{display:flex;align-items:center;gap:10px;overflow-x:auto;padding:11px 0;scrollbar-width:none}
.nav-scroll::-webkit-scrollbar{display:none}
.nav-pill{flex:0 0 auto;font-size:14px;color:var(--muted);padding:6px 15px;border-radius:999px;border:1px solid transparent;white-space:nowrap;transition:all .18s ease}
.nav-pill:hover{color:var(--primary);background:var(--primary-light);text-decoration:none}
.nav-pill.is-active{color:var(--primary-dark);background:var(--primary-light);border-color:#CFE4EC;font-weight:500}

.mobile-search{display:none;border-top:1px solid var(--border-soft);background:#fff;padding:12px 0}
.mobile-search.is-open{display:block}
.mobile-search .search-form{border-radius:14px}

/* ---------- 首屏 ---------- */
.hero{position:relative;overflow:hidden;border-bottom:1px solid var(--border-soft)}
.hero-bg{position:absolute;inset:0;background-image:linear-gradient(115deg,rgba(255,255,255,.94) 0%,rgba(246,249,251,.88) 52%,rgba(232,243,247,.92) 100%),url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center}
.hero-grid{position:absolute;inset:0;background-image:linear-gradient(rgba(23,107,135,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(23,107,135,.05) 1px,transparent 1px);background-size:46px 46px;pointer-events:none}
.hero-inner{position:relative;max-width:1080px;padding:86px 24px 78px}
.hero-tag{display:inline-block;font-size:13px;letter-spacing:.05em;color:var(--primary-dark);background:var(--primary-light);border:1px solid #CFE4EC;border-radius:999px;padding:5px 15px;margin-bottom:22px}
.hero h1{font-size:46px;line-height:1.24;margin-bottom:18px;max-width:880px}
.hero-sub{font-size:18px;color:var(--muted);max-width:620px;margin-bottom:30px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:38px}
.hero-points{display:flex;gap:12px;flex-wrap:wrap}
.hero-points li{display:inline-flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);background:rgba(255,255,255,.85);border:1px solid var(--border-soft);border-radius:999px;padding:7px 16px}
.hero-points li::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--accent);flex:0 0 auto}

/* ---------- 数据条 ---------- */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat{background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--r-card);padding:26px;box-shadow:var(--shadow);transition:box-shadow .2s ease,transform .2s ease}
.stat:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.stat-num{font-size:30px;font-weight:700;color:var(--primary);line-height:1.2}
.stat-label{font-size:14px;color:var(--muted);margin-top:8px}

/* ---------- 功能分组 ---------- */
.split{display:grid;grid-template-columns:272px 1fr;gap:52px;align-items:start}
.side-sticky{position:sticky;top:126px}
.side-sticky h2{font-size:26px;margin-bottom:12px}
.side-sticky p{font-size:15px;color:var(--muted);margin-bottom:22px}
.anchor-list{border-left:2px solid var(--border);padding-left:0}
.anchor-list li{margin:0}
.anchor-list a{display:block;font-size:14.5px;color:var(--muted);padding:9px 0 9px 18px;border-left:2px solid transparent;margin-left:-2px;transition:all .18s ease}
.anchor-list a:hover{color:var(--primary);border-left-color:var(--primary);text-decoration:none;background:linear-gradient(90deg,rgba(232,243,247,.9),rgba(232,243,247,0))}
.fgrid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.feature-card{background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--r-card);padding:26px;box-shadow:var(--shadow);transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease}
.feature-card:nth-child(even){margin-top:26px}
.feature-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);border-color:#CFE4EC}
.feature-icon{width:42px;height:42px;border-radius:11px;background:var(--primary-light);color:var(--primary);display:grid;place-items:center;font-size:16px;font-weight:700;margin-bottom:16px}
.feature-card h3{font-size:19px;margin-bottom:8px}
.feature-card p{font-size:14.8px;color:var(--muted);margin-bottom:14px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.text-link{font-size:14.5px;font-weight:500;display:inline-flex;align-items:center;gap:6px}
.text-link::after{content:"→";transition:transform .18s ease}
.text-link:hover{text-decoration:none;color:var(--primary-dark)}
.text-link:hover::after{transform:translateX(3px)}

/* ---------- 使用场景 ---------- */
.scenes{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:start}
.scene-card{background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow);transition:box-shadow .2s ease,transform .2s ease}
.scene-card:nth-child(2){margin-top:34px}
.scene-card:nth-child(3){margin-top:16px}
.scene-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.scene-img{aspect-ratio:4/3;overflow:hidden;background:#EAF2F6}
.scene-img img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.scene-card:hover .scene-img img{transform:scale(1.02)}
.scene-body{padding:24px}
.scene-body h3{font-size:19px;margin-bottom:12px}
.scene-list li{position:relative;padding-left:18px;font-size:14.6px;color:var(--muted);margin-bottom:8px}
.scene-list li::before{content:"";position:absolute;left:0;top:11px;width:6px;height:6px;border-radius:2px;background:var(--primary-light);border:1px solid var(--primary)}
.scene-body .text-link{margin-top:6px}

/* ---------- 案例证据 ---------- */
.case-main{display:grid;grid-template-columns:240px 1fr;gap:34px;align-items:center;background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--r-card);padding:34px;box-shadow:var(--shadow)}
.case-num{font-size:54px;font-weight:700;color:var(--primary);line-height:1.05}
.case-num small{display:block;font-size:14px;font-weight:400;color:var(--muted);margin-top:10px;letter-spacing:.02em}
.case-quote{font-size:17px;line-height:1.8;margin-bottom:16px;color:var(--text)}
.case-quote::before{content:"“";color:var(--primary);font-size:24px;margin-right:2px}
.case-quote::after{content:"”";color:var(--primary);font-size:24px;margin-left:2px}
.case-tags{display:flex;gap:10px;flex-wrap:wrap}
.chip{display:inline-block;font-size:13px;color:var(--primary-dark);background:var(--primary-light);border:1px solid #CFE4EC;border-radius:999px;padding:4px 13px}
.chip--accent{color:#8A4A18;background:#FCEFE4;border-color:#F4D6BC}
.case-side-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:24px}
.case-small{background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--r-card);padding:26px;box-shadow:var(--shadow);transition:box-shadow .2s ease,transform .2s ease}
.case-small:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px)}
.case-small strong{display:block;font-size:26px;color:var(--primary);line-height:1.3;margin-bottom:8px}
.case-small p{font-size:14.6px;color:var(--muted);margin-bottom:14px}

/* ---------- 价格 ---------- */
.pricing{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;align-items:start}
.price-card{position:relative;background:var(--surface);border:1px solid var(--border);border-radius:var(--r-card);padding:32px 28px;box-shadow:var(--shadow);transition:box-shadow .2s ease,transform .2s ease}
.price-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.price-card.is-featured{background:linear-gradient(180deg,#11526A 0%,#176B87 100%);border-color:transparent;color:#fff;transform:translateY(-10px);box-shadow:0 18px 38px rgba(17,82,106,.28)}
.price-card.is-featured:hover{transform:translateY(-13px)}
.price-badge{position:absolute;top:-13px;right:24px;font-size:12.5px;font-weight:500;color:#7A3F12;background:#FBE3CC;border:1px solid #F0C9A4;border-radius:999px;padding:4px 14px}
.price-card h3{font-size:19px;margin-bottom:6px}
.price-card .price-desc{font-size:14px;color:var(--muted);margin-bottom:20px;min-height:44px}
.price-card.is-featured h3,.price-card.is-featured .price-desc{color:#fff}
.price-card.is-featured .price-desc{color:rgba(255,255,255,.78)}
.price-amount{font-size:34px;font-weight:700;line-height:1.2;color:var(--primary);margin-bottom:4px}
.price-card.is-featured .price-amount{color:#fff}
.price-unit{font-size:13.5px;color:var(--muted);margin-bottom:22px;display:block}
.price-card.is-featured .price-unit{color:rgba(255,255,255,.72)}
.price-list{margin-bottom:26px}
.price-list li{position:relative;padding-left:22px;font-size:14.6px;margin-bottom:10px;color:var(--text)}
.price-card.is-featured .price-list li{color:rgba(255,255,255,.92)}
.price-list li::before{content:"✓";position:absolute;left:0;top:0;color:var(--success);font-size:14px;font-weight:700}
.price-card.is-featured .price-list li::before{color:#8FE0C4}
.price-card .btn{width:100%}

/* ---------- 最新信息 ---------- */
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{display:grid;grid-template-columns:176px 1fr;gap:20px;background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--r-card);padding:18px;box-shadow:var(--shadow);color:inherit;transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease}
.news-card:hover{text-decoration:none;color:inherit;box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#CFE4EC}
.news-card:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
.news-thumb{aspect-ratio:4/3;border-radius:var(--r-img);overflow:hidden;background:#EAF2F6}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-thumb img{transform:scale(1.02)}
.news-meta{display:flex;align-items:center;gap:10px;margin-bottom:8px;flex-wrap:wrap}
.badge{display:inline-block;font-size:12.5px;color:var(--primary-dark);background:var(--primary-light);border:1px solid #CFE4EC;border-radius:999px;padding:3px 12px}
.news-date{font-size:13px;color:var(--muted)}
.news-title{font-size:17px;margin-bottom:8px;line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .18s ease}
.news-card:hover .news-title{color:var(--primary)}
.news-desc{font-size:14.2px;color:var(--muted);margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.empty-state{background:var(--surface);border:1px dashed var(--border);border-radius:var(--r-card);padding:56px 28px;text-align:center;color:var(--muted)}
.empty-icon{width:54px;height:54px;border-radius:14px;background:var(--primary-light);color:var(--primary);display:grid;place-items:center;margin:0 auto 16px;font-size:20px;font-weight:700}
.empty-state p{margin-bottom:18px;font-size:15px}

/* ---------- FAQ ---------- */
.faq{max-width:820px}
.faq-item{background:var(--surface);border:1px solid var(--border-soft);border-radius:12px;margin-bottom:12px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease}
.faq-item.is-open{border-color:#CFE4EC;box-shadow:var(--shadow)}
.faq-q{display:flex;align-items:flex-start;justify-content:space-between;gap:18px;width:100%;padding:20px 22px;background:none;border:0;text-align:left;font-size:16.5px;font-weight:500;color:var(--text);cursor:pointer;line-height:1.6}
.faq-q:hover{color:var(--primary)}
.faq-arrow{flex:0 0 auto;width:20px;height:20px;position:relative;margin-top:4px;transition:transform .22s ease;color:var(--primary)}
.faq-arrow::before,.faq-arrow::after{content:"";position:absolute;top:50%;left:0;width:20px;height:2px;background:currentColor;border-radius:2px;transform-origin:center}
.faq-arrow::before{transform:rotate(0deg)}
.faq-arrow::after{transform:rotate(90deg);transition:opacity .22s ease}
.faq-item.is-open .faq-arrow{transform:rotate(180deg)}
.faq-item.is-open .faq-arrow::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s ease}
.faq-a-inner{padding:0 22px 22px;font-size:15px;color:var(--muted);line-height:1.8}
.faq-item.is-open .faq-a{max-height:420px}

/* ---------- 结尾 CTA ---------- */
.cta-band{background:linear-gradient(120deg,#11526A 0%,#176B87 100%);border-radius:calc(var(--r-card) + 4px);padding:52px 48px;color:#fff;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;box-shadow:0 18px 40px rgba(17,82,106,.22);position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;border-radius:50%;background:rgba(255,255,255,.07)}
.cta-band h2{color:#fff;margin-bottom:10px;font-size:28px}
.cta-band p{color:rgba(255,255,255,.82);margin:0;font-size:15.5px;max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ---------- 页脚 ---------- */
.site-footer{background:#EAF2F6;border-top:1px solid #D7E5EC;margin-top:84px;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:11px;font-weight:700;font-size:18px;color:var(--text);margin-bottom:14px}
.footer-brand:hover{text-decoration:none;color:var(--primary-dark)}
.footer-about{font-size:14.2px;color:var(--muted);margin-bottom:18px;max-width:320px}
.footer-search .search-form{background:#fff;border-radius:12px;padding:5px 6px 5px 14px}
.footer-search .search-submit{height:36px;padding:0 16px;font-size:14px}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text)}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14.2px;color:var(--muted)}
.footer-col a:hover{color:var(--primary)}
.footer-col p{font-size:14.2px;color:var(--muted);margin-bottom:10px}
.footer-bottom{margin-top:44px;padding-top:22px;border-top:1px solid #D7E5EC;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:#6B8492}
.footer-bottom a{font-size:13.5px;color:#6B8492}
.footer-bottom a:hover{color:var(--primary)}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{padding:0 22px}
  .hero-inner{padding:74px 22px 66px}
  .hero h1{font-size:40px}
  .split{grid-template-columns:240px 1fr;gap:36px}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .search-wrap{max-width:380px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .split{grid-template-columns:1fr;gap:32px}
  .side-sticky{position:static}
  .anchor-list{display:flex;flex-wrap:wrap;gap:8px;border-left:0}
  .anchor-list a{border-left:0;padding:6px 14px;border-radius:999px;background:#fff;border:1px solid var(--border-soft)}
  .anchor-list a:hover{background:var(--primary-light);border-color:#CFE4EC}
  .scenes{grid-template-columns:repeat(2,1fr)}
  .scene-card:nth-child(3){margin-top:0}
  .case-main{grid-template-columns:1fr;gap:20px}
  .pricing{grid-template-columns:1fr;gap:20px}
  .price-card.is-featured{transform:none}
  .price-card.is-featured:hover{transform:translateY(-3px)}
  .news-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .topbar-inner{height:66px;gap:12px}
  .brand-text small{display:none}
  .brand{font-size:17px}
  .brand-mark{width:34px;height:34px;font-size:15px}
  .search-wrap,.topbar-actions .link-quiet,.topbar-actions .btn-ghost{display:none}
  .search-toggle{display:inline-flex}
  .topbar-actions{margin-left:auto}
  .topbar-actions .btn-sm{height:38px;padding:0 15px;font-size:14px}
  .hero-inner{padding:52px 22px 50px}
  .hero h1{font-size:29px;line-height:1.34}
  .hero-sub{font-size:16px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-points li{font-size:13px;padding:6px 13px}
  .section{padding:50px 0}
  .section-head{margin-bottom:28px}
  h2,.section-head h2{font-size:23px}
  .stats-grid{grid-template-columns:1fr;gap:16px}
  .fgrid{grid-template-columns:1fr}
  .feature-card:nth-child(even){margin-top:0}
  .scenes{grid-template-columns:1fr;gap:20px}
  .scene-card:nth-child(2),.scene-card:nth-child(3){margin-top:0}
  .case-side-grid{grid-template-columns:1fr}
  .case-main{padding:26px}
  .case-num{font-size:42px}
  .news-card{grid-template-columns:1fr;gap:14px}
  .news-thumb{aspect-ratio:16/9}
  .cta-band{padding:34px 24px;border-radius:var(--r-card)}
  .cta-band h2{font-size:22px}
  .cta-actions .btn{flex:1 1 auto}
  .faq-q{font-size:15.5px;padding:17px 18px}
  .faq-a-inner{padding:0 18px 18px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .site-footer{padding:48px 0 24px;margin-top:56px}
}
@media (max-width:479px){
  .container{padding:0 16px}
  .hero-inner{padding:44px 16px 42px}
  .hero h1{font-size:26px}
  .btn{height:42px;padding:0 18px;font-size:14.5px}
  .stats-grid{gap:14px}
}

/* roulang page: article */
:root{
  --brand:#176B87;
  --brand-dark:#11526A;
  --brand-light:#E8F3F7;
  --amber:#E58A4A;
  --bg:#F6F9FB;
  --surface:#FFFFFF;
  --text:#1B2A32;
  --muted:#5C7480;
  --border:#D9E5EC;
  --border-soft:#E2ECF1;
  --success:#2E9B78;
  --warn:#D9822B;
  --radius-btn:10px;
  --radius-card:14px;
  --radius-img:12px;
  --shadow:0 6px 20px rgba(22,35,43,.06);
  --shadow-hover:0 12px 28px rgba(22,35,43,.10);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,background-color .18s ease;}
a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4,h5,h6{margin:0 0 .6em;font-weight:700;line-height:1.35;color:var(--text);letter-spacing:-.2px;}
h1{font-size:clamp(28px,4vw,44px);}
h2{font-size:clamp(22px,2.6vw,30px);}
h3{font-size:22px;}
h4{font-size:18px;}
p{margin:0 0 1.1em;}
ul,ol{margin:0 0 1.1em;padding-left:1.25em;}
button,input,textarea,select{font:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:72px 0;}
.section-tight{padding:48px 0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15.5px;font-weight:500;line-height:1;border:1px solid transparent;
  transition:all .18s ease;white-space:nowrap;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(23,107,135,.22);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(23,107,135,.26);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:#fff;color:var(--brand);border-color:#BBD7E2;}
.btn-outline:hover{background:var(--brand-light);color:var(--brand-dark);border-color:var(--brand);}
.btn-outline:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--text);height:42px;padding:0 14px;}
.btn-ghost:hover{color:var(--brand);background:var(--brand-light);}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-weight:500;font-size:15px;height:auto;padding:0;}
.btn-text::after{content:"→";transition:transform .18s ease;}
.btn-text:hover{text-decoration:none;color:var(--brand-dark);}
.btn-text:hover::after{transform:translateX(3px);}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:13px;font-weight:500;
  background:var(--brand-light);color:var(--brand-dark);line-height:1.6;
}
.badge-amber{background:#FDF1E7;color:#B4622A;}
.tag{display:inline-block;padding:4px 12px;border-radius:999px;border:1px solid var(--border);font-size:13px;color:var(--muted);background:#fff;}

/* ---------- 站点页头 ---------- */
.site-header{position:sticky;top:0;z-index:80;background:#fff;border-bottom:1px solid var(--border-soft);box-shadow:0 2px 10px rgba(22,35,43,.03);}
.header-main{display:flex;align-items:center;gap:20px;padding-top:14px;padding-bottom:14px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;font-size:19px;font-weight:700;color:var(--text);}
.brand:hover{text-decoration:none;color:var(--brand-dark);}
.brand-mark{
  width:34px;height:34px;border-radius:9px;display:grid;place-items:center;
  background:var(--brand);color:#fff;font-size:16px;font-weight:700;letter-spacing:0;
  box-shadow:0 4px 12px rgba(23,107,135,.28);
}
.brand-name{letter-spacing:.2px;}
.header-search{flex:1 1 auto;max-width:52%;min-width:240px;}
.search-form{
  display:flex;align-items:center;gap:8px;position:relative;
  background:#F2F7FA;border:1px solid var(--border);border-radius:999px;
  padding:5px 6px 5px 16px;transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.search-form:focus-within{border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px rgba(23,107,135,.12);}
.search-icon{flex:0 0 auto;color:var(--muted);}
input.search-input{
  flex:1 1 auto;min-width:0;height:38px;border:0;background:transparent;
  outline:none;color:var(--text);font-size:15px;
}
input.search-input::placeholder{color:#93ABB6;}
.search-submit{
  border:0;height:38px;padding:0 20px;border-radius:999px;
  background:var(--brand);color:#fff;font-size:14px;font-weight:500;
  transition:background-color .18s ease,transform .12s ease;
}
.search-submit:hover{background:var(--brand-dark);}
.search-submit:active{transform:translateY(1px);}
.header-actions{display:flex;align-items:center;gap:8px;flex:0 0 auto;}
.search-toggle{
  display:none;width:42px;height:42px;border-radius:12px;
  border:1px solid var(--border);background:#fff;color:var(--brand);
  align-items:center;justify-content:center;
}
.search-toggle:hover{background:var(--brand-light);}
.mobile-search{display:none;padding:0 0 14px;}
.mobile-search.is-open{display:block;}

/* ---------- 分类导航 ---------- */
.navstrip{background:#fff;border-top:1px solid var(--border-soft);}
.nav-scroll{display:flex;gap:8px;padding:10px 0;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;}
.nav-scroll::-webkit-scrollbar{display:none;}
.nav-pill{
  flex:0 0 auto;white-space:nowrap;padding:7px 16px;border-radius:999px;
  font-size:14.5px;color:var(--muted);border:1px solid transparent;
  transition:all .18s ease;
}
.nav-pill:hover{color:var(--brand);background:var(--brand-light);text-decoration:none;}
.nav-pill.is-active{color:var(--brand-dark);background:var(--brand-light);border-color:#CFE4EC;font-weight:600;}

/* ---------- 文章页头 ---------- */
.article-hero{padding:44px 0 0;background:
  radial-gradient(1200px 320px at 50% -140px,rgba(23,107,135,.10),transparent 70%),
  var(--bg);}
.breadcrumb{display:flex;align-items:center;gap:8px;flex-wrap:wrap;font-size:13.5px;color:var(--muted);margin-bottom:18px;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#A9BEC8;}
.article-title{max-width:900px;margin-bottom:18px;line-height:1.28;letter-spacing:-.6px;}
.article-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:14px;color:var(--muted);}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3D5DE;}
.article-cover{
  margin:28px auto 0;max-width:920px;border-radius:var(--radius-card);
  overflow:hidden;border:1px solid var(--border-soft);background:var(--brand-light);
  aspect-ratio:16/9;box-shadow:var(--shadow);
}
.article-cover img{width:100%;height:100%;object-fit:cover;}

/* ---------- 正文 ---------- */
.article-body{padding:48px 0 8px;}
.article-panel{
  background:var(--surface);border:1px solid var(--border-soft);border-radius:var(--radius-card);
  box-shadow:var(--shadow);padding:48px 48px 40px;max-width:860px;margin:0 auto;
}
.article-content{font-size:17px;line-height:1.8;color:#22333D;word-wrap:break-word;}
.article-content > *:first-child{margin-top:0;}
.article-content h2{font-size:25px;margin:2em 0 .7em;padding-bottom:.4em;border-bottom:1px solid var(--border-soft);}
.article-content h3{font-size:20px;margin:1.7em 0 .6em;color:var(--brand-dark);}
.article-content h4{font-size:17.5px;margin:1.5em 0 .5em;}
.article-content p{margin:0 0 1.2em;}
.article-content ul,.article-content ol{margin:0 0 1.3em;padding-left:1.4em;}
.article-content li{margin-bottom:.45em;}
.article-content blockquote{
  margin:1.6em 0;padding:16px 22px;background:var(--brand-light);
  border-left:4px solid var(--brand);border-radius:0 var(--radius-img) var(--radius-img) 0;color:#254350;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content pre{
  background:#F1F5F8;border:1px solid var(--border-soft);border-radius:var(--radius-img);
  padding:16px 18px;overflow-x:auto;font-size:14px;line-height:1.7;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
}
.article-content code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  background:#EEF4F7;border-radius:6px;padding:2px 6px;font-size:.92em;color:#1F4C5C;
}
.article-content pre code{background:none;padding:0;color:inherit;}
.article-content table{width:100%;border-collapse:collapse;margin:1.5em 0;font-size:15px;}
.article-content th,.article-content td{border:1px solid var(--border);padding:10px 14px;text-align:left;}
.article-content thead th{background:#F2F7FA;font-weight:600;color:var(--brand-dark);}
.article-content img{border-radius:var(--radius-img);margin:1.6em auto;}
.article-content a{text-decoration:underline;text-underline-offset:3px;}
.article-content hr{border:0;border-top:1px solid var(--border-soft);margin:2.2em 0;}

/* ---------- 空状态 ---------- */
.empty-state{text-align:center;padding:32px 16px 24px;}
.empty-icon{
  width:76px;height:76px;margin:0 auto 18px;border-radius:20px;
  background:var(--brand-light);color:var(--brand);display:grid;place-items:center;
}
.empty-state h3{font-size:20px;margin-bottom:8px;}
.empty-state p{color:var(--muted);max-width:420px;margin:0 auto 20px;}

/* ---------- 板块标题 ---------- */
.section-head{max-width:720px;margin-bottom:36px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:1px;
  color:var(--brand);background:var(--brand-light);border-radius:999px;padding:4px 14px;margin-bottom:14px;
}
.section-head h2{margin-bottom:10px;}
.section-head p{color:var(--muted);margin:0;}

/* ---------- 入口卡 ---------- */
.entry-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.entry-card{
  display:flex;flex-direction:column;background:var(--surface);
  border:1px solid var(--border-soft);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow);transition:box-shadow .2s ease,transform .2s ease;
}
.entry-card:hover,.entry-card:focus-within{box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.entry-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--brand-light);}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.entry-card:hover .entry-thumb img{transform:scale(1.02);}
.entry-body{padding:22px 22px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.entry-body h3{font-size:17.5px;margin-bottom:8px;}
.entry-card:hover .entry-body h3{color:var(--brand);}
.entry-body p{font-size:14.5px;color:var(--muted);margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.entry-body .btn-text{margin-top:auto;}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--surface);border-top:1px solid var(--border-soft);border-bottom:1px solid var(--border-soft);
}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0;flex-wrap:wrap;}
.cta-inner h2{margin-bottom:8px;}
.cta-inner p{color:var(--muted);margin:0;max-width:560px;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:#EAF2F6;border-top:1px solid var(--border);padding:56px 0 24px;margin-top:8px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--text);margin-bottom:14px;}
.footer-brand:hover{text-decoration:none;color:var(--brand-dark);}
.footer-about{color:var(--muted);font-size:14.5px;max-width:340px;margin-bottom:18px;}
.footer-search .search-form{background:#fff;}
.footer-col h4{font-size:15px;font-weight:600;color:var(--brand-dark);margin-bottom:14px;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col li a{color:var(--muted);font-size:14.5px;}
.footer-col li a:hover{color:var(--brand);}
.footer-col p{color:var(--muted);font-size:14.5px;margin:0 0 10px;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  border-top:1px solid #D7E5EC;margin-top:36px;padding-top:20px;
  color:var(--muted);font-size:13.5px;
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--brand);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1199px){
  .container{padding:0 20px;}
  .entry-grid{gap:20px;}
  .article-panel{padding:40px 36px 34px;}
}
@media screen and (max-width:991px){
  .header-search{max-width:44%;min-width:180px;}
  .entry-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:60px 0;}
  .article-panel{padding:34px 28px 28px;}
}
@media screen and (max-width:767px){
  .container{padding:0 16px;}
  .header-main{gap:12px;padding-top:12px;padding-bottom:12px;}
  .brand{font-size:17px;}
  .brand-mark{width:30px;height:30px;border-radius:8px;font-size:14px;}
  .header-search{display:none;}
  .search-toggle{display:inline-flex;}
  .btn-ghost{display:none;}
  .header-actions .btn-primary{height:42px;padding:0 16px;font-size:14.5px;}
  .section{padding:44px 0;}
  .section-head{margin-bottom:26px;}
  .article-hero{padding:28px 0 0;}
  .article-meta{gap:10px;font-size:13.5px;}
  .article-body{padding:32px 0 0;}
  .article-panel{padding:26px 18px 22px;border-radius:12px;}
  .article-content{font-size:16.5px;line-height:1.78;}
  .article-content h2{font-size:21px;}
  .article-content h3{font-size:18.5px;}
  .cta-inner{padding:40px 0;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media screen and (max-width:520px){
  .entry-grid{grid-template-columns:1fr;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .article-content table{display:block;overflow-x:auto;-webkit-overflow-scrolling:touch;white-space:nowrap;}
}

/* roulang page: category1 */
:root{
  --primary:#176B87;
  --primary-dark:#11526A;
  --primary-soft:#E8F3F7;
  --accent:#E58A4A;
  --bg:#F6F9FB;
  --surface:#FFFFFF;
  --text:#1B2A32;
  --muted:#5C7480;
  --line:#D9E5EC;
  --card-line:#E2ECF1;
  --success:#2E9B78;
  --warn:#D9822B;
  --footer-bg:#EAF2F6;
  --radius-btn:10px;
  --radius-card:14px;
  --radius-img:12px;
  --shadow:0 6px 20px rgba(22,35,43,.06);
  --shadow-hover:0 12px 28px rgba(22,35,43,.10);
  --gutter:28px;
  --section-pad:88px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  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 .18s ease;}
a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;}
button{font-family:inherit;}
h1,h2,h3,h4,h5,h6{margin:0 0 .6em;font-weight:700;color:var(--text);line-height:1.35;letter-spacing:.1px;}
h1{font-size:44px;}
h2{font-size:30px;}
h3{font-size:22px;}
h4{font-size:18px;}
h5{font-size:16px;}
h6{font-size:14px;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
::selection{background:var(--primary-soft);color:var(--primary-dark);}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:6px;}

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

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;text-decoration:none;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(23,107,135,.22);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-hover);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:#fff;color:var(--primary);border-color:#BBD6E0;}
.btn-outline:hover{background:var(--primary-soft);color:var(--primary-dark);border-color:var(--primary);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(1px);}
.btn-sm{height:40px;padding:0 16px;font-size:14px;}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--primary);}
.btn-text i{transition:transform .18s ease;}
.btn-text:hover{color:var(--primary-dark);text-decoration:none;}
.btn-text:hover i{transform:translateX(4px);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--card-line);
  box-shadow:0 2px 12px rgba(22,35,43,.04);
  backdrop-filter:saturate(120%) blur(6px);
}
.header-main{padding:14px 0;}
.header-row{display:flex;align-items:center;gap:24px;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:linear-gradient(150deg,var(--primary) 0%,var(--primary-dark) 100%);
  color:#fff;font-weight:700;font-size:17px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 4px 12px rgba(23,107,135,.28);
}
.brand-name{font-size:19px;font-weight:700;color:var(--text);letter-spacing:.3px;}
.brand-sub{display:block;font-size:12px;font-weight:400;color:var(--muted);line-height:1;margin-top:3px;}

.header-search{flex:1 1 auto;max-width:520px;}
.search-form{display:flex;align-items:center;gap:8px;background:#F3F8FA;border:1px solid var(--line);border-radius:999px;padding:5px 6px 5px 16px;transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;}
.search-form:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(23,107,135,.10);}
.search-icon{color:var(--muted);flex:0 0 auto;}
.search-input{flex:1 1 auto;border:0;background:transparent;height:38px;font-size:15px;color:var(--text);min-width:60px;}
.search-input:focus{outline:none;}
.search-input::placeholder{color:#93AAB5;}
.search-submit{
  flex:0 0 auto;height:38px;padding:0 18px;border-radius:999px;border:0;
  background:var(--primary);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background .18s ease,transform .18s ease;
}
.search-submit:hover{background:var(--primary-dark);}
.search-submit:active{transform:translateY(1px);}
.search-clear{border:0;background:transparent;color:#9DB4BE;cursor:pointer;padding:4px;display:none;}
.search-clear.is-visible{display:inline-flex;}

.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.header-link{font-size:14px;font-weight:500;color:var(--muted);}
.header-link:hover{color:var(--primary);text-decoration:none;}
.mobile-search-toggle{
  display:none;width:42px;height:42px;border-radius:11px;border:1px solid var(--line);
  background:#fff;color:var(--primary);cursor:pointer;align-items:center;justify-content:center;font-size:16px;
}

.navstrip{border-top:1px solid var(--card-line);background:#fff;}
.nav-scroll{display:flex;align-items:center;gap:10px;padding:10px 0;overflow-x:auto;scrollbar-width:none;}
.nav-scroll::-webkit-scrollbar{display:none;}
.nav-pill{
  flex:0 0 auto;display:inline-block;padding:8px 16px;border-radius:999px;
  font-size:14px;font-weight:500;color:var(--muted);background:#F5FAFC;border:1px solid transparent;
  transition:all .18s ease;
}
.nav-pill:hover{color:var(--primary);background:var(--primary-soft);text-decoration:none;}
.nav-pill.is-active{background:var(--primary-soft);color:var(--primary-dark);border-color:#C6DEE7;font-weight:600;}

.mobile-search-panel{display:none;padding:12px 0;border-top:1px solid var(--card-line);background:#fff;}
.mobile-search-panel.is-open{display:block;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;
  overflow:hidden;
}
.hero::before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.88);}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(23,107,135,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(23,107,135,.05) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:.5;pointer-events:none;
}
.hero-inner{position:relative;z-index:2;padding:76px 0 72px;max-width:860px;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid #CBE0E8;color:var(--primary-dark);
  font-size:13px;font-weight:600;margin-bottom:20px;box-shadow:var(--shadow);
}
.hero-eyebrow i{color:var(--accent);}
.hero h1{font-size:46px;margin-bottom:18px;letter-spacing:-.4px;}
.hero h1 em{font-style:normal;color:var(--primary);}
.hero-sub{font-size:18px;color:var(--muted);max-width:640px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px;}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);}
.hero-points i{color:var(--success);font-size:13px;}

/* ---------- 面包屑 ---------- */
.breadcrumb{padding:20px 0 0;font-size:13px;color:var(--muted);}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.breadcrumb li::after{content:"/";margin-left:8px;color:#B9CCD5;}
.breadcrumb li:last-child::after{content:"";}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb strong{color:var(--primary-dark);font-weight:600;}

/* ---------- 板块通用 ---------- */
.section{padding:var(--section-pad) 0;}
.section-alt{background:#fff;}
.section-head{max-width:760px;margin-bottom:44px;}
.section-kicker{display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.5px;color:var(--primary);margin-bottom:12px;text-transform:uppercase;}
.section-title{font-size:30px;margin-bottom:12px;}
.section-desc{color:var(--muted);font-size:16px;margin:0;}

/* ---------- 左目录 + 右功能卡 ---------- */
.split-layout{display:grid;grid-template-columns:264px minmax(0,1fr);gap:44px;align-items:start;}
.side-toc{
  position:sticky;top:132px;
  background:#fff;border:1px solid var(--card-line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow);
}
.side-toc h3{font-size:15px;color:var(--muted);font-weight:600;letter-spacing:.5px;margin-bottom:14px;}
.toc-list li+li{margin-top:4px;}
.toc-link{
  display:flex;align-items:center;gap:10px;padding:9px 12px;border-radius:9px;
  font-size:14px;font-weight:500;color:var(--muted);transition:all .18s ease;
}
.toc-link:hover{background:var(--primary-soft);color:var(--primary-dark);text-decoration:none;}
.toc-link.is-current{background:var(--primary-soft);color:var(--primary-dark);font-weight:600;}
.toc-link span.num{
  width:22px;height:22px;border-radius:7px;background:#F0F6F9;color:var(--primary);
  font-size:12px;display:flex;align-items:center;justify-content:center;flex:0 0 auto;font-weight:700;
}
.toc-link.is-current span.num{background:var(--primary);color:#fff;}
.toc-help{margin-top:20px;padding-top:18px;border-top:1px dashed var(--line);font-size:13px;color:var(--muted);}
.toc-help a{font-weight:600;}

.feature-group+.feature-group{margin-top:52px;}
.feature-group-head{margin-bottom:22px;}
.feature-group-head h3{font-size:22px;margin-bottom:6px;}
.feature-group-head p{margin:0;color:var(--muted);font-size:14px;}
.module-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.feature-card{
  background:#fff;border:1px solid var(--card-line);border-radius:var(--radius-card);
  padding:26px;box-shadow:var(--shadow);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;flex-direction:column;
}
.feature-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#CDE2EA;}
.feature-icon{
  width:44px;height:44px;border-radius:12px;background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:16px;
}
.feature-card h4{font-size:18px;margin-bottom:8px;}
.feature-card:hover h4{color:var(--primary);}
.feature-card p{font-size:14.5px;color:var(--muted);margin-bottom:16px;}
.feature-meta{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:16px;}
.tag{display:inline-block;padding:4px 11px;border-radius:999px;font-size:12px;font-weight:600;background:#F0F6F9;color:var(--primary-dark);border:1px solid #DEEAF0;}
.tag-accent{background:#FDF2E9;color:#B4661F;border-color:#F3D9C2;}
.tag-ok{background:#EAF7F2;color:#1F7A5D;border-color:#CDEADF;}
.feature-card .btn-text{margin-top:auto;}

/* ---------- 统计条 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:1px;
  background:var(--card-line);border:1px solid var(--card-line);border-radius:var(--radius-card);overflow:hidden;
}
.stat-item{background:#fff;padding:28px 24px;text-align:left;}
.stat-num{font-size:32px;font-weight:700;color:var(--primary);line-height:1.1;margin-bottom:6px;}
.stat-num small{font-size:16px;font-weight:600;margin-left:2px;}
.stat-label{font-size:14px;color:var(--muted);}

/* ---------- 组合步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.step-item{background:#fff;border:1px solid var(--card-line);border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow);}
.step-index{
  width:38px;height:38px;border-radius:11px;background:var(--primary);color:#fff;font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;margin-bottom:16px;
}
.step-item h4{font-size:18px;margin-bottom:8px;}
.step-item p{font-size:14.5px;color:var(--muted);margin:0;}

/* ---------- 适用对象 ---------- */
.audience-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.audience-card{
  background:#fff;border:1px solid var(--card-line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow);transition:transform .2s ease,box-shadow .2s ease;
}
.audience-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.audience-cover{aspect-ratio:16/9;overflow:hidden;background:#EDF4F7;}
.audience-cover img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform .3s ease;}
.audience-card:hover .audience-cover img{transform:scale(1.03);}
.audience-body{padding:24px;}
.audience-body h4{font-size:18px;margin-bottom:8px;}
.audience-body p{font-size:14.5px;color:var(--muted);margin:0;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:800px;}
.accordion.faq-list{border:0;background:transparent;margin:0;}
.accordion.faq-list .accordion-item{
  border:1px solid var(--card-line);border-radius:12px;background:#fff;overflow:hidden;
  box-shadow:var(--shadow);margin-bottom:14px;
}
.accordion.faq-list .accordion-item.is-active{border-color:#C6DEE7;}
.accordion.faq-list .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--text);
  border:0;background:#fff;transition:color .18s ease,background .18s ease;
}
.accordion.faq-list .accordion-title:hover{background:#FAFDFE;color:var(--primary);text-decoration:none;}
.accordion.faq-list .accordion-title::before{display:none;}
.accordion.faq-list .accordion-title::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;font-size:12px;color:var(--primary);
  transition:transform .22s ease;margin:0;position:static;
}
.accordion.faq-list .accordion-item.is-active .accordion-title::after{transform:rotate(180deg);}
.accordion.faq-list .accordion-content{
  padding:0 24px 22px;border:0;color:var(--muted);font-size:15px;background:#fff;
}
.accordion.faq-list .accordion-content p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  border:1px solid #CFE3EA;box-shadow:var(--shadow);
}
.cta-band::before{content:"";position:absolute;inset:0;background:rgba(255,255,255,.90);}
.cta-inner{position:relative;z-index:2;padding:56px 48px;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.cta-inner h2{font-size:28px;margin-bottom:10px;}
.cta-inner p{margin:0;color:var(--muted);max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--footer-bg);border-top:1px solid #D5E5EC;padding:60px 0 0;margin-top:20px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.2fr;gap:40px;padding-bottom:44px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;text-decoration:none;}
.footer-brand .brand-mark{width:34px;height:34px;font-size:16px;}
.footer-brand span:last-child{font-size:18px;font-weight:700;color:var(--text);}
.footer-brand:hover{text-decoration:none;}
.footer-about{font-size:14px;color:var(--muted);margin-bottom:18px;max-width:320px;}
.footer-search .search-form{background:#fff;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-col ul li+li{margin-top:10px;}
.footer-col ul a{font-size:14px;color:var(--muted);}
.footer-col ul a:hover{color:var(--primary);}
.footer-col p{font-size:14px;color:var(--muted);margin-bottom:10px;}
.footer-bottom{
  border-top:1px solid #D3E4EB;padding:20px 0;display:flex;justify-content:space-between;
  gap:14px;flex-wrap:wrap;font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  :root{--section-pad:72px;}
  .hero h1{font-size:40px;}
  .split-layout{grid-template-columns:236px minmax(0,1fr);gap:32px;}
}
@media (max-width:991px){
  :root{--section-pad:64px;}
  .header-search{display:none;}
  .mobile-search-toggle{display:inline-flex;}
  .header-actions .header-link{display:none;}
  .split-layout{grid-template-columns:1fr;gap:28px;}
  .side-toc{position:static;}
  .toc-list{display:flex;flex-wrap:wrap;gap:8px;}
  .toc-list li+li{margin-top:0;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps,.audience-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
}
@media (max-width:767px){
  :root{--section-pad:52px;}
  body{font-size:15.5px;}
  h1{font-size:30px;}
  h2,.section-title{font-size:24px;}
  .hero-inner{padding:52px 0 48px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{flex:1 1 auto;}
  .module-grid{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:1fr;}
  .steps,.audience-grid{grid-template-columns:1fr;}
  .cta-inner{padding:36px 24px;}
  .cta-inner h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .brand-sub{display:none;}
  .header-row{gap:12px;}
  .btn{height:44px;padding:0 16px;font-size:14px;}
  .footer-grid{grid-template-columns:1fr;}
  .accordion.faq-list .accordion-title{padding:16px 16px;font-size:15px;}
  .accordion.faq-list .accordion-content{padding:0 16px 18px;}
  .feature-card,.step-item,.audience-body{padding:20px;}
  .stat-item{padding:22px 18px;}
}

/* roulang page: category2 */
:root{
  --primary:#176B87;
  --primary-dark:#11526A;
  --primary-light:#E8F3F7;
  --accent:#E58A4A;
  --bg:#F6F9FB;
  --surface:#FFFFFF;
  --text:#1B2A32;
  --muted:#5C7480;
  --border:#D9E5EC;
  --border-soft:#E2ECF1;
  --success:#2E9B78;
  --warning:#D9822B;
  --radius-btn:10px;
  --radius-card:14px;
  --radius-img:12px;
  --radius-pill:999px;
  --shadow-sm:0 6px 20px rgba(22,35,43,.06);
  --shadow-md:0 12px 28px rgba(22,35,43,.10);
  --section-pad:80px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;color:var(--text);line-height:1.35;letter-spacing:.2px;}
h1{font-size:44px;}
h2{font-size:30px;}
h3{font-size:22px;}
h4{font-size:18px;}
h5{font-size:16px;}
h6{font-size:14px;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,text-decoration-color .18s ease;}
a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;}
img{max-width:100%;display:block;border-style:none;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,button,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:var(--section-pad) 0;}
.section-tight{padding:56px 0;}
.section-alt{background:var(--surface);}
.section-head{max-width:760px;margin-bottom:40px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1px;
  color:var(--primary-dark);background:var(--primary-light);
  padding:6px 14px;border-radius:var(--radius-pill);margin-bottom:18px;
}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--muted);font-size:16px;margin:0;}
.section-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;}
.section-head-row .section-head{margin-bottom:0;}
.section-link{font-size:15px;font-weight:600;white-space:nowrap;display:inline-flex;align-items:center;gap:6px;}
.section-link i{font-size:12px;transition:transform .18s ease;}
.section-link:hover i{transform:translateX(3px);}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;text-decoration:none;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(23,107,135,.22);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-primary:active{transform:translateY(1px);box-shadow:0 3px 10px rgba(23,107,135,.2);}
.btn-ghost{background:#fff;color:var(--primary);border-color:#BFD8E2;}
.btn-ghost:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary);transform:translateY(-1px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-light{background:#fff;color:var(--primary-dark);}
.btn-light:hover{background:var(--primary-light);color:var(--primary-dark);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;transform:translateY(-1px);}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:15px;color:var(--primary);}
.btn-text i{font-size:12px;transition:transform .18s ease;}
.btn-text:hover{color:var(--primary-dark);}
.btn-text:hover i{transform:translateX(3px);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* 头部 */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.97);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid var(--border-soft);
}
.header-top{padding:12px 0;}
.header-top-inner{display:flex;align-items:center;gap:20px;}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  background:var(--primary);color:#fff;
  display:grid;place-items:center;
  font-weight:700;font-size:17px;letter-spacing:.5px;
  box-shadow:0 4px 12px rgba(23,107,135,.24);
}
.brand-name{font-size:19px;font-weight:700;color:var(--text);letter-spacing:.4px;}
.brand:hover .brand-name{color:var(--primary-dark);}
.header-search{flex:1 1 46%;max-width:560px;margin:0 auto;}
.search-form{
  display:flex;align-items:center;gap:8px;
  background:#fff;border:1px solid var(--border);
  border-radius:var(--radius-pill);
  padding:4px 4px 4px 16px;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.search-form:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px rgba(23,107,135,.12);}
.search-icon{flex:0 0 auto;color:var(--muted);}
.search-input{
  flex:1 1 auto;min-width:0;height:38px;border:0;outline:0;background:transparent;
  font-size:15px;color:var(--text);
}
.search-input::placeholder{color:#93A8B2;}
.search-submit{
  flex:0 0 auto;height:38px;padding:0 20px;border:0;border-radius:var(--radius-pill);
  background:var(--primary);color:#fff;font-size:14px;font-weight:600;cursor:pointer;
  transition:background-color .18s ease,transform .18s ease;
}
.search-submit:hover{background:var(--primary-dark);}
.search-submit:active{transform:translateY(1px);}
.header-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.icon-btn{
  width:42px;height:42px;display:none;place-items:center;
  border:1px solid var(--border);border-radius:12px;background:#fff;
  color:var(--primary);cursor:pointer;transition:background-color .18s ease,border-color .18s ease;
}
.icon-btn:hover{background:var(--primary-light);border-color:#BFD8E2;}
.mobile-search{padding:0 0 12px;background:#fff;}
.mobile-search .container{display:block;}
.mobile-search[hidden]{display:none;}

/* 分类导航 */
.navstrip{background:#fff;border-top:1px solid var(--border-soft);}
.nav-scroll{
  display:flex;align-items:center;gap:8px;
  padding:10px 0;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.nav-scroll::-webkit-scrollbar{display:none;}
.nav-pill{
  flex:0 0 auto;padding:8px 18px;border-radius:var(--radius-pill);
  font-size:14px;font-weight:500;color:var(--muted);white-space:nowrap;
  border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease;
}
.nav-pill:hover{background:var(--primary-light);color:var(--primary-dark);text-decoration:none;}
.nav-pill.is-active{background:var(--primary-light);color:var(--primary-dark);font-weight:600;border-color:#CFE4EC;}

/* Hero */
.hero{
  position:relative;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  padding:76px 0 68px;border-bottom:1px solid var(--border-soft);
}
.hero::before{content:"";position:absolute;inset:0;background:rgba(246,249,251,.92);}
.hero .container{position:relative;z-index:1;}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin-bottom:20px;flex-wrap:wrap;}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary-dark);}
.breadcrumb .sep{color:#A9BDC7;}
.breadcrumb .current{color:var(--primary-dark);font-weight:600;}
.hero-grid{display:grid;grid-template-columns:1.3fr 1fr;gap:52px;align-items:center;}
.hero h1{font-size:44px;line-height:1.25;margin-bottom:16px;}
.hero h1 .hl{color:var(--primary-dark);}
.hero-sub{font-size:18px;color:var(--primary-dark);font-weight:600;margin-bottom:14px;}
.hero-desc{font-size:16px;color:var(--muted);max-width:600px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;}
.meta-chip{
  display:inline-flex;align-items:center;gap:7px;
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-pill);
  padding:7px 15px;font-size:13px;color:var(--muted);
}
.meta-chip i{color:var(--primary);font-size:12px;}
.hero-panel{
  background:#fff;border:1px solid var(--border-soft);border-radius:var(--radius-card);
  box-shadow:var(--shadow-sm);padding:26px;
}
.hero-panel h3{font-size:18px;margin-bottom:6px;}
.hero-panel .panel-note{font-size:13px;color:var(--muted);margin-bottom:18px;}
.panel-list{display:grid;gap:12px;}
.panel-list a{
  display:flex;align-items:center;gap:12px;padding:12px 14px;
  border:1px solid var(--border-soft);border-radius:12px;
  font-size:15px;color:var(--text);font-weight:500;
  transition:background-color .18s ease,border-color .18s ease,transform .18s ease;
}
.panel-list a:hover{background:var(--primary-light);border-color:#CFE4EC;color:var(--primary-dark);text-decoration:none;transform:translateX(3px);}
.panel-list .num{
  width:26px;height:26px;flex:0 0 auto;border-radius:8px;
  background:var(--primary-light);color:var(--primary-dark);
  display:grid;place-items:center;font-size:13px;font-weight:700;
}
.panel-list .arrow{margin-left:auto;color:#A9BDC7;font-size:12px;}

/* 数据条 */
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat-card{
  background:#fff;border:1px solid var(--border-soft);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-sm);
}
.stat-num{font-size:34px;font-weight:700;color:var(--primary-dark);line-height:1.1;margin-bottom:6px;}
.stat-num span{font-size:16px;font-weight:600;color:var(--muted);margin-left:4px;}
.stat-label{font-size:15px;font-weight:600;margin-bottom:4px;}
.stat-note{font-size:13px;color:var(--muted);}

/* 胶囊索引 */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 18px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--border);
  font-size:14px;color:var(--muted);font-weight:500;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.chip:hover{background:var(--primary-light);color:var(--primary-dark);border-color:#CFE4EC;text-decoration:none;transform:translateY(-1px);}
.chip i{font-size:12px;color:var(--primary);}

/* 场景卡 */
.scenario-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:30px;}
.scenario-card{
  background:#fff;border:1px solid var(--border-soft);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-sm);
  transition:box-shadow .22s ease,transform .22s ease,border-color .22s ease;
  display:flex;flex-direction:column;
}
.scenario-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px);border-color:#CFE4EC;}
.scenario-grid > .scenario-card:nth-child(even){margin-top:48px;}
.scenario-media{position:relative;overflow:hidden;background:#EAF2F6;}
.scenario-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .45s ease;}
.scenario-card:hover .scenario-media img{transform:scale(1.03);}
.scenario-media .badge{
  position:absolute;left:16px;top:16px;
  background:rgba(255,255,255,.94);color:var(--primary-dark);
  padding:5px 13px;border-radius:var(--radius-pill);font-size:13px;font-weight:600;
}
.scenario-body{padding:26px;display:flex;flex-direction:column;flex:1 1 auto;}
.scenario-body h3{font-size:20px;margin-bottom:10px;}
.scenario-body h3 a{color:var(--text);}
.scenario-body h3 a:hover{color:var(--primary-dark);text-decoration:none;}
.scenario-body > p{font-size:15px;color:var(--muted);margin-bottom:16px;}
.point-list{display:grid;gap:10px;margin-bottom:22px;}
.point-list li{display:flex;gap:10px;font-size:15px;color:var(--text);}
.point-list i{color:var(--success);font-size:14px;margin-top:5px;flex:0 0 auto;}
.scenario-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:14px;padding-top:18px;border-top:1px dashed var(--border);}
.scenario-foot .note{font-size:13px;color:var(--muted);}

/* 表格 */
.table-wrap{
  overflow-x:auto;background:#fff;border:1px solid var(--border-soft);
  border-radius:var(--radius-card);box-shadow:var(--shadow-sm);
}
table.data-table{width:100%;border-collapse:collapse;min-width:720px;}
table.data-table caption{
  text-align:left;padding:20px 24px 0;font-size:14px;color:var(--muted);
}
table.data-table th,table.data-table td{
  padding:15px 24px;text-align:left;font-size:15px;
  border-bottom:1px solid var(--border-soft);vertical-align:top;
}
table.data-table thead th{
  background:#F0F6F9;color:var(--primary-dark);
  font-size:14px;font-weight:600;letter-spacing:.4px;white-space:nowrap;
}
table.data-table tbody tr:hover{background:#FAFDFE;}
table.data-table tbody tr:last-child td{border-bottom:0;}
table.data-table td strong{font-weight:600;}
.tip-text{font-size:13px;color:var(--muted);margin-top:14px;}

/* 时间线 */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;counter-reset:step;}
.step{
  position:relative;background:#fff;border:1px solid var(--border-soft);
  border-radius:var(--radius-card);padding:28px;box-shadow:var(--shadow-sm);
  transition:box-shadow .22s ease,transform .22s ease;
}
.step:hover{box-shadow:var(--shadow-md);transform:translateY(-3px);}
.step-no{
  width:40px;height:40px;border-radius:12px;background:var(--primary-light);
  color:var(--primary-dark);display:grid;place-items:center;
  font-weight:700;font-size:16px;margin-bottom:16px;
}
.step h3{font-size:19px;margin-bottom:10px;}
.step p{font-size:15px;color:var(--muted);}
.step::after{
  content:"";position:absolute;right:-18px;top:48px;width:8px;height:8px;
  border-right:2px solid #C6DBE4;border-top:2px solid #C6D8E2;
  transform:rotate(45deg);
}
.steps .step:last-child::after{display:none;}

/* FAQ */
.faq-list{max-width:820px;}
.faq-item{
  background:#fff;border:1px solid var(--border-soft);border-radius:12px;
  margin-bottom:14px;overflow:hidden;transition:box-shadow .2s ease,border-color .2s ease;
}
.faq-item:hover{border-color:#CFE4EC;box-shadow:var(--shadow-sm);}
.faq-item[open]{box-shadow:var(--shadow-sm);border-color:#CFE4EC;}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16px;font-weight:600;color:var(--text);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary-dark);}
.faq-chevron{
  flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  background:var(--primary-light);color:var(--primary-dark);
  display:grid;place-items:center;font-size:12px;
  transition:transform .22s ease,background-color .22s ease;
}
.faq-item[open] .faq-chevron{transform:rotate(180deg);background:#D7EAF1;}
.faq-content{padding:0 24px 22px;font-size:15px;color:var(--muted);}
.faq-content p{margin-bottom:.8em;}
.faq-content p:last-child{margin-bottom:0;}

/* CTA */
.cta-band{
  position:relative;background:var(--primary-dark);color:#fff;
  border-radius:18px;padding:52px 48px;overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.07) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.07) 1px,transparent 1px);
  background-size:44px 44px;pointer-events:none;
}
.cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:16px;max-width:620px;margin:0;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* 页脚 */
.site-footer{background:#EAF2F6;border-top:1px solid var(--border);padding:60px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1.2fr 1.2fr;gap:40px;padding-bottom:40px;}
.footer-brand{display:inline-flex;align-items:center;gap:10px;text-decoration:none;margin-bottom:16px;}
.footer-brand:hover{text-decoration:none;}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--primary);color:#fff;display:grid;place-items:center;font-weight:700;font-size:16px;}
.footer-brand span:last-child{font-size:18px;font-weight:700;color:var(--text);}
.footer-about{font-size:14px;color:var(--muted);margin-bottom:18px;}
.footer-search .search-form{background:#fff;}
.footer-col h4{font-size:16px;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:grid;gap:10px;}
.footer-col li a{font-size:14px;color:var(--muted);}
.footer-col li a:hover{color:var(--primary-dark);}
.footer-col p{font-size:14px;color:var(--muted);margin-bottom:10px;}
.footer-col p:last-child{margin-bottom:0;}
.footer-bottom{
  border-top:1px solid #D6E4EA;padding-top:22px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--primary-dark);}

/* 响应式 */
@media (max-width:1200px){
  :root{--section-pad:72px;}
  .hero h1{font-size:40px;}
}
@media (max-width:992px){
  :root{--section-pad:64px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero h1{font-size:36px;}
  .stats-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;}
  .step::after{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .header-search{max-width:420px;}
}
@media (max-width:768px){
  :root{--section-pad:52px;}
  .container{padding:0 18px;}
  .header-search{display:none;}
  .icon-btn{display:grid;}
  .header-top-inner{gap:12px;}
  .header-actions .btn-ghost{display:none;}
  .hero{padding:52px 0 48px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:16px;}
  .hero-desc{font-size:15px;}
  .section-head-row{flex-direction:column;align-items:flex-start;gap:14px;}
  .scenario-grid{grid-template-columns:1fr;gap:24px;}
  .scenario-grid > .scenario-card:nth-child(even){margin-top:0;}
  .stats-grid{grid-template-columns:1fr;gap:18px;}
  .cta-band{padding:36px 24px;border-radius:16px;}
  .cta-band h2{font-size:23px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
  .tab-filters{flex-wrap:wrap;gap:8px;}
}
@media (max-width:520px){
  h1{font-size:28px;}
  .hero h1{font-size:27px;}
  .section-head h2{font-size:23px;}
  .scenario-body{padding:20px;}
  .step{padding:22px;}
  .faq-item summary{padding:16px 18px;font-size:15px;}
  .faq-content{padding:0 18px 18px;}
  .stat-num{font-size:28px;}
}

/* roulang page: category3 */
:root{
  --primary:#176B87;
  --primary-dark:#11526A;
  --primary-light:#E8F3F7;
  --accent:#E58A4A;
  --bg:#F6F9FB;
  --surface:#FFFFFF;
  --text:#1B2A32;
  --muted:#5C7480;
  --border:#D9E5EC;
  --border-soft:#E2ECF1;
  --success:#2E9B78;
  --warn:#D9822B;
  --r-btn:10px;
  --r-card:14px;
  --r-img:12px;
  --shadow:0 6px 20px rgba(22,35,43,.06);
  --shadow-hover:0 12px 28px rgba(22,35,43,.10);
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei",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);
  font-size:16px;
  line-height:1.75;
  color:var(--text);
  background:var(--bg);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{margin:0 0 .6em;font-weight:600;line-height:1.3;color:var(--text);letter-spacing:.2px;}
h1{font-size:44px;font-weight:700;}
h2{font-size:30px;}
h3{font-size:22px;}
h4{font-size:18px;}
h5{font-size:16px;}
h6{font-size:14px;}
p{margin:0 0 1em;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease,text-decoration-color .18s ease;}
a:hover{color:var(--primary-dark);text-decoration:underline;text-underline-offset:3px;}
img{max-width:100%;display:block;}
ul,ol{margin:0 0 1em;padding-left:1.15em;}
button{font-family:inherit;}
input,textarea,select{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  background:var(--surface);
  border-bottom:1px solid var(--border-soft);
  position:relative;
  z-index:60;
}
.header-main{
  display:flex;
  align-items:center;
  gap:24px;
  padding:16px 0;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text);
}
.brand:hover{text-decoration:none;color:var(--primary-dark);}
.brand-mark{
  width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  background:var(--primary);
  color:#fff;
  border-radius:11px;
  font-weight:700;
  font-size:18px;
  letter-spacing:.5px;
  box-shadow:0 4px 12px rgba(23,107,135,.24);
}
.brand-text{
  font-size:19px;
  font-weight:700;
  letter-spacing:.4px;
}
.header-search{
  flex:1 1 auto;
  max-width:560px;
  margin:0 auto;
}
.search-form{
  position:relative;
  display:flex;
  align-items:center;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:999px;
  padding:4px 4px 4px 14px;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-form:focus-within{
  border-color:var(--primary);
  background:#fff;
  box-shadow:0 0 0 4px rgba(23,107,135,.10);
}
.search-icon{color:var(--muted);flex:0 0 auto;margin-right:8px;}
.search-input{
  flex:1 1 auto;
  border:0;
  background:transparent;
  height:40px;
  font-size:15px;
  color:var(--text);
  outline:none;
  min-width:0;
}
.search-input::placeholder{color:#93A9B4;}
.search-submit{
  flex:0 0 auto;
  height:40px;
  padding:0 22px;
  border:0;
  border-radius:999px;
  background:var(--primary);
  color:#fff;
  font-size:15px;
  font-weight:500;
  cursor:pointer;
  transition:background .18s ease,transform .18s ease;
}
.search-submit:hover{background:var(--primary-dark);}
.search-submit:active{transform:translateY(1px);}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.search-toggle{
  display:none;
  width:42px;height:42px;
  align-items:center;justify-content:center;
  border:1px solid var(--border);
  background:#fff;
  border-radius:11px;
  color:var(--primary);
  cursor:pointer;
}
.search-toggle:hover{border-color:var(--primary);}

/* 分类导航条 */
.navstrip{
  background:var(--surface);
  border-bottom:1px solid var(--border-soft);
  position:sticky;
  top:0;
  z-index:55;
  box-shadow:0 4px 14px rgba(22,35,43,.04);
}
.nav-scroll{
  display:flex;
  align-items:center;
  gap:8px;
  padding:10px 0;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-scroll::-webkit-scrollbar{display:none;}
.nav-pill{
  flex:0 0 auto;
  padding:8px 18px;
  border-radius:999px;
  font-size:15px;
  color:var(--muted);
  border:1px solid transparent;
  white-space:nowrap;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.nav-pill:hover{
  color:var(--primary);
  background:var(--primary-light);
  text-decoration:none;
}
.nav-pill.is-active{
  color:var(--primary-dark);
  background:var(--primary-light);
  border-color:#CDE4EC;
  font-weight:600;
}

/* 移动端搜索层 */
.mobile-search{
  display:none;
  padding:0 0 16px;
}
.mobile-search.is-open{display:block;}
.mobile-search .search-form{max-width:100%;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:500;
  cursor:pointer;
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
  white-space:nowrap;
}
.btn:hover{text-decoration:none;}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(23,107,135,.22);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 22px rgba(23,107,135,.26);}
.btn-primary:active{transform:translateY(1px);}
.btn-outline{background:#fff;color:var(--primary);border-color:#BEDAE4;}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary);transform:translateY(-1px);}
.btn-outline:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--muted);border-color:transparent;padding:0 14px;height:42px;}
.btn-ghost:hover{color:var(--primary);background:var(--primary-light);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.text-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:500;
  color:var(--primary);
}
.text-link span{transition:transform .18s ease;display:inline-block;}
.text-link:hover span{transform:translateX(3px);}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background-image:url("/assets/images/backpic/back-1.webp");
  background-size:cover;
  background-position:center;
  padding:88px 0 72px;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.88) 48%,rgba(246,249,251,.72) 100%);
}
.hero .container{position:relative;z-index:2;}
.hero-inner{max-width:760px;}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--muted);
  margin-bottom:18px;
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:#AFC3CC;}
.hero h1{
  font-size:46px;
  line-height:1.22;
  margin-bottom:18px;
}
.hero h1 em{
  font-style:normal;
  color:var(--primary);
}
.hero-sub{
  font-size:17px;
  color:var(--muted);
  max-width:620px;
  margin-bottom:28px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:36px;
  margin-top:44px;
  padding-top:28px;
  border-top:1px solid var(--border);
}
.hero-stat strong{
  display:block;
  font-size:28px;
  font-weight:700;
  color:var(--primary-dark);
  line-height:1.2;
}
.hero-stat span{font-size:13px;color:var(--muted);}

/* ---------- 通用板块 ---------- */
.section{padding:80px 0;}
.section-tint{background:#fff;border-top:1px solid var(--border-soft);border-bottom:1px solid var(--border-soft);}
.section-head{margin-bottom:36px;max-width:760px;}
.section-head .eyebrow{
  display:inline-block;
  font-size:13px;
  color:var(--primary);
  background:var(--primary-light);
  border-radius:999px;
  padding:4px 14px;
  margin-bottom:14px;
  font-weight:500;
}
.section-head h2{font-size:30px;margin-bottom:12px;}
.section-head p{color:var(--muted);margin:0;}

/* ---------- 搜索与筛选 ---------- */
.filter-panel{
  background:var(--surface);
  border:1px solid var(--border-soft);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  padding:24px 26px;
  margin-top:-34px;
  position:relative;
  z-index:5;
}
.filter-search{max-width:640px;margin-bottom:18px;}
.filter-search .search-form{background:#fff;}
.chip-row{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  align-items:center;
}
.chip{
  height:36px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--border);
  background:#fff;
  color:var(--muted);
  font-size:14px;
  cursor:pointer;
  transition:all .18s ease;
}
.chip:hover{color:var(--primary);border-color:#BEDAE4;background:var(--primary-light);}
.chip.is-active{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
  font-weight:500;
}
.filter-hint{
  margin:16px 0 0;
  font-size:13px;
  color:var(--muted);
}

/* ---------- 指南列表 ---------- */
.post-list{
  display:grid;
  gap:22px;
  margin-top:26px;
}
.post-card{
  display:grid;
  grid-template-columns:230px 1fr;
  gap:26px;
  background:var(--surface);
  border:1px solid var(--border-soft);
  border-radius:var(--r-card);
  box-shadow:var(--shadow);
  padding:24px;
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
}
.post-card:hover{
  box-shadow:var(--shadow-hover);
  transform:translateY(-2px);
  border-color:#CBDFE8;
}
.post-card:focus-within{
  box-shadow:var(--shadow-hover);
  border-color:var(--primary);
}
.post-thumb{
  display:block;
  border-radius:var(--r-img);
  overflow:hidden;
  background:var(--primary-light);
  aspect-ratio:4 / 3;
}
.post-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .32s ease;
}
.post-card:hover .post-thumb img{transform:scale(1.02);}
.post-body{display:flex;flex-direction:column;min-width:0;}
.post-meta{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:10px;
  flex-wrap:wrap;
}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:500;
  letter-spacing:.2px;
}
.badge-start{background:#EAF6F1;color:#1F7A5C;}
.badge-ui{background:var(--primary-light);color:var(--primary-dark);}
.badge-account{background:#FDF0E6;color:#B4632A;}
.badge-data{background:#EEF0FA;color:#414C86;}
.badge-faq{background:#FBEFF1;color:#A2455A;}
.badge-adv{background:#EDF3F7;color:#456A7B;}
.post-date{font-size:13px;color:var(--muted);}
.post-title{font-size:20px;margin:0 0 10px;}
.post-title a{color:var(--text);}
.post-title a:hover{color:var(--primary);text-decoration:none;}
.post-excerpt{
  font-size:15px;
  color:var(--muted);
  margin:0 0 16px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.post-foot{margin-top:auto;display:flex;align-items:center;gap:16px;}

.post-list-actions{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:16px;
  margin-top:36px;
  flex-wrap:wrap;
}
.pager{
  display:flex;
  gap:8px;
  align-items:center;
}
.pager a,.pager span{
  min-width:38px;
  height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  border:1px solid var(--border);
  background:#fff;
  color:var(--muted);
  font-size:14px;
}
.pager a:hover{border-color:var(--primary);color:var(--primary);text-decoration:none;background:var(--primary-light);}
.pager .is-current{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:500;}

/* ---------- 提示条 ---------- */
.tip-band{
  display:flex;
  gap:18px;
  align-items:flex-start;
  background:var(--primary-light);
  border:1px solid #CDE4EC;
  border-radius:var(--r-card);
  padding:24px 26px;
  margin-top:34px;
}
.tip-band .tip-icon{
  flex:0 0 auto;
  width:38px;height:38px;
  border-radius:11px;
  background:#fff;
  color:var(--primary);
  display:flex;align-items:center;justify-content:center;
}
.tip-band h3{font-size:17px;margin-bottom:6px;}
.tip-band p{margin:0;font-size:14.5px;color:#3B5C6B;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;}
.faq-item{
  background:var(--surface);
  border:1px solid var(--border-soft);
  border-radius:12px;
  margin-bottom:14px;
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.faq-item[open]{
  border-color:#C5DEE8;
  box-shadow:var(--shadow);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  padding:20px 56px 20px 24px;
  font-size:16.5px;
  font-weight:500;
  color:var(--text);
  position:relative;
  transition:color .18s ease,background .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--primary);background:#FBFDFE;}
.faq-item summary::after{
  content:"";
  position:absolute;
  right:24px;
  top:50%;
  width:9px;height:9px;
  border-right:2px solid var(--primary);
  border-bottom:2px solid var(--primary);
  transform:translateY(-70%) rotate(45deg);
  transition:transform .22s ease;
}
.faq-item[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.faq-body{
  padding:0 24px 22px;
  color:var(--muted);
  font-size:15px;
  line-height:1.8;
  border-top:1px dashed var(--border);
  margin-top:-1px;
  padding-top:18px;
}

/* ---------- CTA ---------- */
.cta-band{
  background:#fff;
  border:1px solid var(--border-soft);
  border-radius:18px;
  box-shadow:var(--shadow);
  padding:52px 48px;
  display:grid;
  grid-template-columns:1.4fr 1fr;
  gap:40px;
  align-items:center;
}
.cta-band h2{font-size:28px;margin-bottom:12px;}
.cta-band p{color:var(--muted);margin:0 0 24px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-side{
  background:var(--bg);
  border:1px solid var(--border-soft);
  border-radius:var(--r-card);
  padding:26px;
}
.cta-side h3{font-size:16px;margin-bottom:14px;}
.cta-side ul{list-style:none;padding:0;margin:0;}
.cta-side li{
  display:flex;
  gap:10px;
  align-items:flex-start;
  font-size:14.5px;
  color:var(--muted);
  padding:9px 0;
  border-bottom:1px dashed var(--border);
}
.cta-side li:last-child{border-bottom:0;}
.cta-side li::before{
  content:"";
  flex:0 0 auto;
  width:6px;height:6px;
  margin-top:9px;
  border-radius:50%;
  background:var(--accent);
}

/* ---------- 返回顶部 ---------- */
.back-top-row{
  display:flex;
  justify-content:center;
  margin-top:40px;
}
.back-top{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:44px;
  padding:0 22px;
  border-radius:999px;
  border:1px solid var(--border);
  background:#fff;
  color:var(--muted);
  font-size:14px;
  cursor:pointer;
  transition:all .18s ease;
}
.back-top:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-light);text-decoration:none;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#EAF2F6;
  border-top:1px solid var(--border);
  padding:64px 0 0;
  margin-top:20px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--text);
  font-size:18px;
  font-weight:700;
  margin-bottom:14px;
}
.footer-brand:hover{text-decoration:none;color:var(--primary-dark);}
.footer-brand .brand-mark{
  width:34px;height:34px;
  font-size:16px;
  border-radius:10px;
}
.footer-about{
  font-size:14.5px;
  color:var(--muted);
  max-width:340px;
  margin-bottom:20px;
}
.footer-search{max-width:360px;}
.footer-search .search-form{background:#fff;}
.footer-col h4{
  font-size:15px;
  margin-bottom:16px;
  color:var(--text);
}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14.5px;color:var(--muted);}
.footer-col a:hover{color:var(--primary);}
.footer-col p{font-size:14.5px;color:var(--muted);margin:0 0 10px;}
.footer-bottom{
  border-top:1px solid var(--border);
  padding:22px 0 28px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:var(--muted);
}
.footer-bottom a{color:var(--muted);}
.footer-bottom a:hover{color:var(--primary);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .hero h1{font-size:40px;}
  .section{padding:72px 0;}
}
@media (max-width:991px){
  .header-search{max-width:380px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;}
  .hero{padding:70px 0 58px;}
  .hero h1{font-size:36px;}
  .post-card{grid-template-columns:190px 1fr;gap:20px;}
}
@media (max-width:767px){
  .header-main{gap:14px;padding:12px 0;flex-wrap:nowrap;}
  .header-search{display:none;}
  .header-actions .btn-ghost{display:none;}
  .header-actions .btn-primary{height:42px;padding:0 18px;font-size:14px;}
  .search-toggle{display:flex;}
  .brand-text{font-size:17px;}
  h1{font-size:30px;}
  .hero h1{font-size:30px;}
  h2,.section-head h2{font-size:24px;}
  .hero{padding:56px 0 48px;}
  .hero-sub{font-size:16px;}
  .hero-stats{gap:24px;margin-top:32px;padding-top:22px;}
  .hero-stat strong{font-size:23px;}
  .section{padding:52px 0;}
  .filter-panel{margin-top:-22px;padding:20px;}
  .post-card{
    grid-template-columns:1fr;
    padding:20px;
    gap:16px;
  }
  .post-thumb{aspect-ratio:16 / 9;}
  .post-title{font-size:18px;}
  .cta-band{padding:32px 22px;border-radius:14px;}
  .cta-band h2{font-size:22px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-about{max-width:100%;}
  .container{padding:0 18px;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .hero h1{font-size:27px;}
  .hero-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .faq-item summary{padding:17px 48px 17px 18px;font-size:15.5px;}
  .faq-body{padding:16px 18px 20px;}
  .post-meta{gap:8px;}
}

/* roulang page: category4 */
:root{
  --brand:#176B87;
  --brand-dark:#11526A;
  --brand-light:#E8F3F7;
  --accent:#E58A4A;
  --bg:#F6F9FB;
  --surface:#FFFFFF;
  --text:#1B2A32;
  --muted:#5C7480;
  --border:#D9E5EC;
  --border-soft:#E2ECF1;
  --success:#2E9B78;
  --warn:#D9822B;
  --radius-btn:10px;
  --radius-card:14px;
  --radius-img:12px;
  --shadow:0 6px 20px rgba(22,35,43,.06);
  --shadow-hover:0 12px 28px rgba(22,35,43,.10);
  --gutter:28px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .18s ease,text-decoration-color .18s ease;}
a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px;}
button{font-family:inherit;}
h1,h2,h3,h4,h5,h6,p,ul,ol,figure{margin:0;}
h1,h2,h3,h4,h5,h6{font-weight:700;line-height:1.32;color:var(--text);letter-spacing:.2px;}
h1{font-size:44px;}
h2{font-size:30px;}
h3{font-size:22px;}
h4{font-size:18px;}
h5{font-size:16px;}
h6{font-size:14px;}
ul{list-style:none;padding:0;}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:84px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:2px;
  color:var(--brand);background:var(--brand-light);
  border-radius:999px;padding:6px 14px;margin-bottom:16px;
}
.section-head h2{font-size:30px;margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:16px;}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  backdrop-filter:saturate(180%) blur(8px);
  border-bottom:1px solid var(--border-soft);
}
.header-inner{
  display:flex;align-items:center;gap:20px;
  min-height:76px;padding-top:12px;padding-bottom:12px;
}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;
  background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-weight:700;font-size:17px;letter-spacing:.5px;
  box-shadow:0 4px 12px rgba(23,107,135,.28);
}
.brand-text{font-size:19px;font-weight:700;color:var(--brand-dark);letter-spacing:.4px;}
.search-form{
  position:relative;display:flex;align-items:center;
  width:100%;max-width:520px;flex:1 1 420px;
}
.header-search{margin:0 auto;}
.search-icon{
  position:absolute;left:18px;top:50%;transform:translateY(-50%);
  color:var(--muted);pointer-events:none;
}
.search-input{
  width:100%;height:48px;
  border:1px solid var(--border);
  background:#F9FCFD;
  border-radius:999px;
  padding:0 108px 0 46px;
  font-size:15px;color:var(--text);
  outline:none;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.search-input::placeholder{color:#93A9B4;}
.search-input:focus{
  background:#fff;border-color:var(--brand);
  box-shadow:0 0 0 4px rgba(23,107,135,.12);
}
.search-submit{
  position:absolute;right:5px;top:50%;transform:translateY(-50%);
  height:38px;padding:0 20px;border:0;border-radius:999px;
  background:var(--brand);color:#fff;font-size:14px;font-weight:500;
  cursor:pointer;transition:background .18s ease,transform .12s ease;
}
.search-submit:hover{background:var(--brand-dark);}
.search-submit:active{transform:translateY(-50%) scale(.98);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--border);background:#fff;color:var(--brand);
  cursor:pointer;transition:border-color .18s ease,background .18s ease;
}
.icon-btn:hover{border-color:var(--brand);background:var(--brand-light);}
.mobile-search-toggle{display:none;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:500;cursor:pointer;border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .12s ease;
}
.btn-sm{height:42px;padding:0 20px;font-size:14px;}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 6px 16px rgba(23,107,135,.22);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;text-decoration:none;transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:#fff;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);text-decoration:none;transform:translateY(-1px);}
.btn-light{background:#fff;color:var(--brand-dark);}
.btn-light:hover{background:var(--brand-light);color:var(--brand-dark);text-decoration:none;}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;text-decoration:none;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:500;font-size:15px;padding:0;height:auto;background:none;border:0;
}
.btn-link:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:4px;}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;
}

/* ---------- 分类导航条 ---------- */
.navstrip{border-top:1px solid var(--border-soft);background:#fff;}
.nav-scroll{
  display:flex;gap:10px;overflow-x:auto;padding:10px 0;
  scrollbar-width:none;
}
.nav-scroll::-webkit-scrollbar{display:none;}
.nav-pill{
  flex:0 0 auto;display:inline-flex;align-items:center;
  height:38px;padding:0 18px;border-radius:999px;
  font-size:14px;color:var(--muted);background:#F3F8FA;
  border:1px solid transparent;white-space:nowrap;
  transition:color .18s ease,background .18s ease,border-color .18s ease;
}
.nav-pill:hover{color:var(--brand-dark);background:var(--brand-light);text-decoration:none;}
.nav-pill.is-active{
  color:var(--brand-dark);background:var(--brand-light);
  border-color:rgba(23,107,135,.28);font-weight:600;
}

/* ---------- 移动端搜索层 ---------- */
.mobile-search{
  display:none;background:#fff;border-bottom:1px solid var(--border-soft);
  padding:12px 0;
}
.mobile-search.is-open{display:block;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  padding:86px 0 78px;
  overflow:hidden;
}
.hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(255,255,255,.95) 0%,rgba(255,255,255,.88) 46%,rgba(232,243,247,.78) 100%);
}
.hero-inner{position:relative;z-index:1;max-width:820px;}
.hero h1{font-size:44px;line-height:1.26;margin-bottom:18px;}
.hero h1 .hl{color:var(--brand);}
.hero-sub{font-size:17px;color:#3D5560;max-width:660px;margin-bottom:14px;}
.hero-keyline{
  display:inline-flex;flex-wrap:wrap;gap:10px;margin:18px 0 26px;
}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;color:var(--brand-dark);
  background:#fff;border:1px solid var(--border-soft);
  border-radius:999px;padding:6px 14px;
}
.chip-dot{width:6px;height:6px;border-radius:50%;background:var(--accent);}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:32px;margin-top:40px;
  padding-top:26px;border-top:1px solid rgba(23,107,135,.16);
}
.hero-meta div strong{display:block;font-size:26px;color:var(--brand-dark);line-height:1.2;}
.hero-meta div span{font-size:13px;color:var(--muted);}

/* ---------- 价格卡 ---------- */
.plans{
  display:grid;grid-template-columns:repeat(3,1fr);
  gap:var(--gutter);align-items:end;
}
.plan{
  background:var(--surface);border:1px solid var(--border-soft);
  border-radius:var(--radius-card);padding:30px 28px;
  box-shadow:var(--shadow);position:relative;
  display:flex;flex-direction:column;
  transition:box-shadow .2s ease,transform .2s ease;
}
.plan:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);}
.plan-name{font-size:19px;font-weight:700;margin-bottom:6px;}
.plan-desc{font-size:14px;color:var(--muted);min-height:44px;}
.plan-price{display:flex;align-items:flex-end;gap:6px;margin:18px 0 4px;}
.plan-price .num{font-size:40px;font-weight:700;color:var(--brand-dark);line-height:1;}
.plan-price .unit{font-size:14px;color:var(--muted);padding-bottom:5px;}
.plan-cycle{font-size:13px;color:var(--muted);margin-bottom:22px;}
.plan-features{border-top:1px solid var(--border-soft);padding-top:20px;margin-bottom:26px;flex:1 1 auto;}
.plan-features li{
  position:relative;padding-left:24px;font-size:14.5px;
  color:#33474F;margin-bottom:12px;
}
.plan-features li::before{
  content:"";position:absolute;left:0;top:9px;
  width:12px;height:7px;border-left:2px solid var(--success);
  border-bottom:2px solid var(--success);transform:rotate(-45deg);
}
.plan .btn{width:100%;}
.plan--featured{
  background:var(--brand-dark);border-color:var(--brand-dark);
  color:#fff;transform:translateY(-14px);
  box-shadow:0 18px 40px rgba(17,82,106,.28);
}
.plan--featured:hover{transform:translateY(-16px);box-shadow:0 22px 46px rgba(17,82,106,.32);}
.plan--featured .plan-name,
.plan--featured .plan-price .num{color:#fff;}
.plan--featured .plan-desc,
.plan--featured .plan-price .unit,
.plan--featured .plan-cycle{color:rgba(255,255,255,.76);}
.plan--featured .plan-features{border-top-color:rgba(255,255,255,.2);}
.plan--featured .plan-features li{color:rgba(255,255,255,.92);}
.plan--featured .plan-features li::before{border-color:#8FD6C0;}
.plan-badge{
  position:absolute;top:-14px;right:22px;
  background:var(--accent);color:#fff;font-size:12.5px;font-weight:600;
  border-radius:999px;padding:5px 14px;
  box-shadow:0 6px 16px rgba(229,138,74,.36);
}
.plan-note{
  margin-top:34px;font-size:13.5px;color:var(--muted);
  display:flex;flex-wrap:wrap;gap:14px 26px;
}
.plan-note span{display:inline-flex;align-items:center;gap:8px;}

/* ---------- 对比表 ---------- */
.table-card{
  background:var(--surface);border:1px solid var(--border-soft);
  border-radius:var(--radius-card);box-shadow:var(--shadow);
  overflow:hidden;
}
.table-scroll{overflow-x:auto;}
table.compare{
  width:100%;min-width:720px;border-collapse:collapse;font-size:14.5px;
}
table.compare thead th{
  background:#F1F7FA;color:var(--brand-dark);
  font-weight:600;text-align:left;
  padding:16px 20px;border-bottom:1px solid var(--border-soft);
  white-space:nowrap;
}
table.compare thead th.is-featured{background:var(--brand-dark);color:#fff;}
table.compare tbody td{
  padding:15px 20px;border-bottom:1px solid #EDF3F6;color:#33474F;
}
table.compare tbody tr:nth-child(even) td{background:#FAFCFD;}
table.compare tbody tr:last-child td{border-bottom:0;}
table.compare tbody td:first-child{color:var(--text);font-weight:500;}
table.compare td.is-featured{background:#F1F7FA;font-weight:500;color:var(--brand-dark);}
table.compare tbody tr:nth-child(even) td.is-featured{background:#EDF5F8;}
.table-hint{margin-top:14px;font-size:13px;color:var(--muted);}

/* ---------- 时间线 ---------- */
.timeline{
  display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gutter);
  counter-reset:step;position:relative;
}
.timeline::before{
  content:"";position:absolute;left:0;right:0;top:26px;height:1px;
  background:linear-gradient(90deg,var(--border),rgba(217,229,236,.2));z-index:0;
}
.step{
  position:relative;z-index:1;background:var(--surface);
  border:1px solid var(--border-soft);border-radius:var(--radius-card);
  padding:52px 24px 26px;box-shadow:var(--shadow);
  transition:box-shadow .2s ease,transform .2s ease;
}
.step:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.step-num{
  position:absolute;top:-1px;left:24px;transform:translateY(-50%);
  width:52px;height:52px;border-radius:14px;
  background:var(--brand);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;
  box-shadow:0 8px 18px rgba(23,107,135,.26);
}
.step h4{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--muted);}

/* ---------- 选购要点图文 ---------- */
.pick{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
}
.pick-media{border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow);}
.pick-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--radius-card);}
.pick-list li{
  display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--border-soft);
}
.pick-list li:last-child{border-bottom:0;}
.pick-ico{
  flex:0 0 auto;width:40px;height:40px;border-radius:12px;
  background:var(--brand-light);color:var(--brand-dark);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
}
.pick-list h4{font-size:16.5px;margin-bottom:4px;}
.pick-list p{font-size:14.5px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:800px;margin:0 auto;}
.accordion{
  list-style:none;margin:0;padding:0;background:transparent;
}
ul.accordion .accordion-item{
  background:#fff;border:1px solid var(--border-soft);
  border-radius:12px;margin-bottom:14px;overflow:hidden;
  box-shadow:var(--shadow);transition:border-color .2s ease;
}
ul.accordion .accordion-item:hover{border-color:#C7DCE5;}
ul.accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--text);
  border:0;background:transparent;text-align:left;
  transition:color .18s ease;
}
ul.accordion .accordion-title:hover{color:var(--brand);text-decoration:none;}
ul.accordion .accordion-title::before{
  content:"";order:2;flex:0 0 auto;
  width:10px;height:10px;
  border-right:2px solid var(--brand);border-bottom:2px solid var(--brand);
  transform:rotate(45deg);transition:transform .22s ease;margin-left:auto;
}
ul.accordion .accordion-item.is-active .accordion-title{color:var(--brand-dark);}
ul.accordion .accordion-item.is-active .accordion-title::before{transform:rotate(-135deg);}
ul.accordion .accordion-content{
  padding:0 24px 22px;border:0;color:#425A64;font-size:15px;background:#fff;
}
ul.accordion .accordion-content p{margin-bottom:10px;}
ul.accordion .accordion-content p:last-child{margin-bottom:0;}
.faq-more{text-align:center;margin-top:30px;font-size:14px;color:var(--muted);}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(120deg,#176B87 0%,#11526A 100%);
  border-radius:20px;padding:56px 48px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;
  gap:36px;flex-wrap:wrap;
  box-shadow:0 20px 44px rgba(17,82,106,.24);
}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:10px;}
.cta-band p{color:rgba(255,255,255,.82);font-size:15.5px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#EAF2F6;border-top:1px solid #D8E6ED;
  padding:64px 0 26px;margin-top:20px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
}
.footer-brand{display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;text-decoration:none;}
.footer-brand:hover{text-decoration:none;}
.footer-brand span:last-child{font-size:18px;font-weight:700;color:var(--brand-dark);}
.footer-about{font-size:14px;color:#4A6470;max-width:330px;}
.footer-search{margin-top:20px;max-width:360px;}
.footer-search .search-form{max-width:360px;}
.footer-search .search-input{background:#fff;}
.footer-col h4{font-size:15px;color:var(--brand-dark);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{font-size:14px;color:#4A6470;}
.footer-col ul a:hover{color:var(--brand-dark);}
.footer-col p{font-size:14px;color:#4A6470;margin-bottom:10px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid #D8E6ED;
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#5C7480;
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  h1{font-size:36px;}
  .hero h1{font-size:36px;}
  .section{padding:68px 0;}
  .plans{gap:20px;}
  .pick{grid-template-columns:1fr;gap:32px;}
  .timeline{grid-template-columns:repeat(2,1fr);gap:36px 20px;}
  .timeline::before{display:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:991px){
  .header-search{max-width:340px;}
  .plans{grid-template-columns:1fr;}
  .plan--featured{transform:none;}
  .plan--featured:hover{transform:translateY(-2px);}
  .plan-desc{min-height:auto;}
}
@media (max-width:767px){
  .container{padding:0 18px;}
  .header-search{display:none;}
  .mobile-search-toggle{display:inline-flex;}
  .header-actions .btn-sm{display:none;}
  .section{padding:52px 0;}
  .section-tight{padding:44px 0;}
  h1{font-size:30px;}
  .hero{padding:56px 0 48px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:15.5px;}
  .hero-meta{gap:22px;}
  .hero-meta div strong{font-size:22px;}
  .section-head h2{font-size:24px;}
  .timeline{grid-template-columns:1fr;}
  .step{padding:46px 22px 22px;}
  .cta-band{padding:40px 26px;border-radius:16px;}
  .cta-band h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .footer-search{max-width:100%;}
  ul.accordion .accordion-title{padding:17px 18px;font-size:15.5px;}
  ul.accordion .accordion-content{padding:0 18px 18px;}
}
@media (max-width:480px){
  .brand-text{font-size:17px;}
  .hero h1{font-size:27px;}
  .plan{padding:24px 20px;}
  .plan-price .num{font-size:34px;}
  .footer-bottom{flex-direction:column;}
}