/* roulang page: index */
:root{
  --brand:#1D4E89;
  --brand-dark:#163C6B;
  --brand-light:#E9F0F9;
  --brand-8:#1D4E8914;
  --amber:#C2703C;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --surface-2:#FBFCFE;
  --line:#E3E9F2;
  --ink:#16202E;
  --ink-2:#4A5A70;
  --ink-3:#7C8A9C;
  --danger:#C0442F;
  --deep:#102A45;
  --r-card:14px;
  --r-img:10px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(22,32,46,.05),0 10px 24px -14px rgba(22,32,46,.16);
  --sh-2:0 2px 4px rgba(22,32,46,.06),0 18px 34px -16px rgba(22,32,46,.22);
  --t:.2s ease;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;padding:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  background:var(--bg);color:var(--ink);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:var(--r-img)}
a{color:var(--brand);text-decoration:none;transition:color var(--t),background var(--t),border-color var(--t)}
a:hover{color:var(--brand-dark)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;color:var(--ink);letter-spacing:.2px}
h1{font-size:clamp(30px,4.4vw,46px)}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:21px;font-weight:600}
h4{font-size:18px;font-weight:600}
p{margin:0 0 1em}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:88px 0}
.section-sm{padding:64px 0}
.sec-head{margin-bottom:40px;max-width:760px}
.sec-head .kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:500;color:var(--amber);letter-spacing:1.2px;text-transform:uppercase;margin-bottom:12px}
.sec-head .kicker::before{content:"";width:22px;height:2px;background:var(--amber);border-radius:2px}
.sec-head h2{display:flex;align-items:flex-start;gap:12px}
.sec-head h2::before{content:"";flex:0 0 auto;width:3px;height:24px;margin-top:6px;background:var(--amber);border-radius:2px}
.sec-head p{margin-top:14px;color:var(--ink-2);font-size:16px;max-width:680px}
.head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:40px;flex-wrap:wrap}
.head-row .sec-head{margin-bottom:0}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--t),background var(--t);
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.nav-top{display:flex;align-items:center;gap:20px;height:88px;transition:height var(--t)}
.site-header.is-scrolled .nav-top{height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;font-size:20px;font-weight:700;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{width:34px;height:34px;border-radius:9px;background:var(--brand);display:flex;align-items:center;justify-content:center;gap:3px;flex:0 0 auto}
.brand-mark i{display:block;width:5px;border-radius:2px;background:#fff}
.brand-mark i:first-child{height:16px}
.brand-mark i:last-child{height:10px;background:var(--amber)}
.brand-text{white-space:nowrap}
.nav-search{position:relative;flex:1 1 auto;max-width:520px;margin:0 auto;transition:max-width var(--t)}
.site-header.is-scrolled .nav-search{max-width:380px}
.nav-search input{
  width:100%;height:46px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface-2);padding:0 118px 0 44px;font-size:15px;color:var(--ink);
  transition:border-color var(--t),background var(--t),box-shadow var(--t);
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px var(--brand-8)}
.nav-search .s-icon{position:absolute;left:17px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-size:15px;pointer-events:none}
.nav-search .s-btn{
  position:absolute;right:5px;top:50%;transform:translateY(-50%);
  height:36px;padding:0 20px;border:0;border-radius:999px;background:var(--brand);color:#fff;
  font-size:14px;font-weight:500;cursor:pointer;transition:background var(--t);
}
.nav-search .s-btn:hover{background:var(--brand-dark)}
.nav-actions{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.btn-ghost-x{
  display:inline-flex;align-items:center;gap:7px;padding:10px 18px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:transparent;color:var(--ink);font-size:14px;font-weight:500;cursor:pointer;
  transition:all var(--t);white-space:nowrap;
}
.btn-ghost-x:hover{background:var(--brand-8);border-color:var(--brand);color:var(--brand)}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;border:1px solid var(--line);
  background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:all var(--t)}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.chips-row{display:flex;gap:10px;padding:0 0 14px;overflow-x:auto;scrollbar-width:none;transition:padding var(--t)}
.chips-row::-webkit-scrollbar{display:none}
.site-header.is-scrolled .chips-row{padding-bottom:10px}
.chip{
  flex:0 0 auto;padding:7px 16px;border-radius:999px;border:1px solid var(--line);
  background:var(--surface-2);color:var(--ink-2);font-size:13.5px;white-space:nowrap;transition:all var(--t);
}
.chip:hover{color:var(--brand);border-color:var(--brand);background:#fff}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff}
.site-header.is-scrolled .chip{padding:5px 14px;font-size:13px}
.mobile-panel{
  display:none;border-top:1px solid var(--line);background:#fff;padding:10px 0 16px;
}
.mobile-panel.open{display:block}
.mobile-panel a{
  display:block;padding:12px 4px;font-size:15px;color:var(--ink-2);border-bottom:1px solid var(--line);
}
.mobile-panel a:last-child{border-bottom:0}
.mobile-panel a.active,.mobile-panel a:hover{color:var(--brand)}

/* ---------- Buttons ---------- */
.btn-primary-x{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:var(--r-btn);border:1px solid var(--brand);
  background:var(--brand);color:#fff;font-size:15px;font-weight:500;cursor:pointer;
  transition:all var(--t);
}
.btn-primary-x:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-outline-x{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:14px 28px;border-radius:var(--r-btn);border:1px solid var(--line);
  background:transparent;color:var(--ink);font-size:15px;font-weight:500;cursor:pointer;transition:all var(--t);
}
.btn-outline-x:hover{background:var(--brand-8);border-color:var(--brand);color:var(--brand);transform:translateY(-1px)}
.btn-text-x{
  display:inline-flex;align-items:center;gap:6px;padding:0 0 2px;border:0;border-bottom:1px solid var(--brand-8);
  background:none;color:var(--brand);font-size:14.5px;font-weight:500;cursor:pointer;transition:all var(--t);
}
.btn-text-x:hover{color:var(--amber);border-bottom-color:var(--amber)}
.btn-sm-x{padding:10px 18px;font-size:14px}

/* ---------- Hero ---------- */
.hero{position:relative;padding:72px 0 0;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);overflow:hidden}
.hero-grid{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;padding:6px 14px;border-radius:999px;
  background:var(--brand-8);color:var(--brand);font-size:13px;font-weight:500;margin-bottom:20px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber)}
.hero h1{margin-bottom:20px}
.hero .lede{font-size:17.5px;color:var(--ink-2);line-height:1.8;max-width:560px;margin-bottom:28px}
.hero-cta{display:flex;gap:14px;flex-wrap:wrap;margin-bottom:28px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-2)}
.hero-points i{color:var(--brand);font-size:12px}
.hero-visual{position:relative}
.hero-visual .main-img{
  width:100%;height:420px;object-fit:cover;border-radius:18px;box-shadow:var(--sh-2);
}
.float-card{
  position:absolute;left:-24px;bottom:-26px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-2);padding:18px 22px;min-width:210px;
}
.float-card .fc-label{font-size:13px;color:var(--ink-3);margin-bottom:4px}
.float-card .fc-value{font-size:30px;font-weight:700;color:var(--brand);line-height:1.1;letter-spacing:-.5px}
.float-card .fc-value span{font-size:15px;font-weight:500;color:var(--ink-2);margin-left:2px}
.float-card .fc-bar{margin-top:10px;height:6px;border-radius:999px;background:var(--brand-light);overflow:hidden}
.float-card .fc-bar i{display:block;height:100%;width:78%;border-radius:999px;background:var(--amber)}
.trust-bar{
  margin-top:64px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);display:grid;grid-template-columns:repeat(4,1fr);overflow:hidden;
}
.trust-bar .tb-item{padding:26px 24px;border-right:1px solid var(--line)}
.trust-bar .tb-item:last-child{border-right:0}
.trust-bar .tb-num{font-size:32px;font-weight:700;color:var(--brand);line-height:1.15;letter-spacing:-.6px}
.trust-bar .tb-num small{font-size:15px;font-weight:500;color:var(--ink-2);margin-left:3px}
.trust-bar .tb-txt{font-size:14px;color:var(--ink-2);margin-top:6px}

/* ---------- Pain ---------- */
.pain-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:48px;align-items:center}
.pain-list li{
  display:flex;gap:16px;padding:20px 22px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);margin-bottom:14px;box-shadow:var(--sh-1);transition:all var(--t);
}
.pain-list li:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D5E0EE}
.pain-list .pn{flex:0 0 auto;width:34px;height:34px;border-radius:9px;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700}
.pain-list h4{margin-bottom:4px}
.pain-list p{margin:0;font-size:14.5px;color:var(--ink-2);line-height:1.75}
.pain-visual img{width:100%;height:400px;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sh-1)}

/* ---------- Solution ---------- */
.sol-row{display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;padding:38px 0}
.sol-row + .sol-row{border-top:1px solid var(--line)}
.sol-row.reverse .sol-text{order:2}
.sol-row.reverse .sol-media{order:1}
.sol-tag{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:500;color:var(--amber);background:#FBF2EA;border-radius:999px;padding:5px 13px;margin-bottom:16px}
.sol-text h3{margin-bottom:14px}
.sol-text p{color:var(--ink-2);font-size:15.5px;margin-bottom:8px}
.sol-text .btn-text-x{margin-top:12px}
.sol-media img{width:100%;height:300px;object-fit:cover;border-radius:var(--r-card);box-shadow:var(--sh-1)}
.sol-media{position:relative}
.sol-media::after{content:"";position:absolute;inset:0;border-radius:var(--r-card);background:var(--brand);opacity:.05;pointer-events:none}

/* ---------- Result ---------- */
.result-band{background:var(--deep);border-radius:20px;padding:52px 44px;color:#fff;position:relative;overflow:hidden}
.result-band::before{content:"";position:absolute;right:-120px;top:-120px;width:340px;height:340px;border-radius:50%;background:rgba(29,78,137,.55);filter:blur(10px)}
.result-band .rb-head{position:relative;margin-bottom:36px;max-width:640px}
.result-band .rb-head h2{color:#fff}
.result-band .rb-head p{color:#B9C9DC;margin:14px 0 0;font-size:15.5px}
.metric-row{position:relative;display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.metric-row .m-item{border-left:3px solid var(--amber);padding-left:18px}
.metric-row .m-num{font-size:34px;font-weight:700;color:#fff;line-height:1.15;letter-spacing:-.6px}
.metric-row .m-num small{font-size:15px;font-weight:500;color:#9FB4CB;margin-left:3px}
.metric-row .m-txt{font-size:14px;color:#9FB4CB;margin-top:6px}
.case-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;margin-top:56px}
.case-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:all var(--t);display:flex;flex-direction:column}
.case-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.case-card img{width:100%;height:230px;object-fit:cover;border-radius:0}
.case-card.small img{height:190px}
.case-card .cc-body{padding:22px 24px;flex:1;display:flex;flex-direction:column}
.case-card h4{margin-bottom:8px}
.case-card p{font-size:14.5px;color:var(--ink-2);margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.case-card .cc-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3)}
.tag{
  display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;
  background:var(--brand-8);color:var(--brand);font-size:12.5px;font-weight:500;
}

/* ---------- Testimonial ---------- */
.quote-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.quote-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:32px 30px;box-shadow:var(--sh-1);position:relative;transition:all var(--t)}
.quote-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.quote-card .qmark{font-size:40px;line-height:1;color:var(--brand-light);font-weight:700;margin-bottom:8px;font-family:Georgia,serif}
.quote-card blockquote{margin:0 0 22px;font-size:17px;line-height:1.8;color:var(--ink)}
.quote-card .who{display:flex;align-items:center;gap:12px;padding-top:18px;border-top:1px solid var(--line)}
.quote-card .avatar{width:44px;height:44px;border-radius:50%;background:var(--brand-light);color:var(--brand);display:flex;align-items:center;justify-content:center;font-weight:600;font-size:15px}
.quote-card .who-name{font-size:14.5px;font-weight:600;color:var(--ink)}
.quote-card .who-co{font-size:13px;color:var(--ink-3)}

/* ---------- CMS list ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:all var(--t);display:flex;flex-direction:column}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.post-card .post-thumb{display:block;overflow:hidden}
.post-card .post-thumb img{width:100%;height:190px;object-fit:cover;border-radius:0;transition:transform var(--t)}
.post-card:hover .post-thumb img{transform:scale(1.02)}
.post-card .post-body{padding:20px 22px 22px;flex:1;display:flex;flex-direction:column}
.post-card .post-meta{display:flex;align-items:center;gap:10px;margin-bottom:12px;font-size:13px;color:var(--ink-3)}
.post-card h3{font-size:17.5px;line-height:1.5;margin-bottom:10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-card h3 a{color:var(--ink)}
.post-card h3 a:hover{color:var(--brand)}
.post-card .post-sum{font-size:14.5px;color:var(--ink-2);line-height:1.75;margin-bottom:18px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.post-card .post-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13.5px;color:var(--ink-3);padding-top:14px;border-top:1px solid var(--line)}
.post-card .post-foot a{display:inline-flex;align-items:center;gap:6px;font-weight:500}
.post-card .post-foot a:hover{gap:9px;color:var(--amber)}
.empty-state{
  background:#fff;border:1px dashed #D5E0EE;border-radius:var(--r-card);padding:56px 24px;text-align:center;
}
.empty-state i{font-size:34px;color:#C9D6E6;margin-bottom:14px;display:block}
.empty-state p{font-size:15px;color:var(--ink-2);margin-bottom:18px}

/* ---------- FAQ ---------- */
.faq-wrap{background:var(--surface-2);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:border-color var(--t)}
.faq-wrap.open-border{border-color:rgba(29,78,137,.22)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:20px;
  padding:22px 26px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink);line-height:1.6;transition:color var(--t),background var(--t);
}
.faq-q:hover{color:var(--brand);background:#fff}
.faq-q .fa-arrow{flex:0 0 auto;color:var(--ink-3);font-size:14px;transition:transform var(--t),color var(--t)}
.faq-q[aria-expanded="true"]{color:var(--brand);background:#fff}
.faq-q[aria-expanded="true"] .fa-arrow{transform:rotate(180deg);color:var(--brand)}
.faq-a{display:none;padding:0 26px 24px;background:#fff}
.faq-a.open{display:block}
.faq-a p{margin:0;font-size:15px;line-height:1.85;color:var(--ink-2)}

/* ---------- CTA ---------- */
.cta-band{background:var(--brand-light);border-radius:20px;padding:56px 48px;display:grid;grid-template-columns:.9fr 1.1fr;gap:48px;align-items:start}
.cta-band h2{margin-bottom:14px}
.cta-band .cta-desc{color:var(--ink-2);font-size:15.5px;margin-bottom:22px}
.cta-info li{display:flex;align-items:center;gap:10px;font-size:14.5px;color:var(--ink-2);margin-bottom:10px}
.cta-info i{color:var(--amber);width:16px;text-align:center}
.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:30px;box-shadow:var(--sh-1)}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:14px;font-weight:500;color:var(--ink);margin-bottom:7px}
.form-row input,.form-row textarea{
  width:100%;border:1px solid #D8E1EE;border-radius:var(--r-btn);padding:0 15px;height:46px;
  font-size:15px;color:var(--ink);background:#fff;font-family:inherit;transition:all var(--t);
}
.form-row textarea{height:104px;padding:12px 15px;line-height:1.7;resize:vertical}
.form-row input:focus,.form-row textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-8)}
.form-row input::placeholder,.form-row textarea::placeholder{color:var(--ink-3)}
.form-note{font-size:13px;color:var(--ink-3);margin:14px 0 0}

/* ---------- Footer ---------- */
.site-footer{background:var(--deep);color:#C6D5E6;margin-top:88px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:20px;font-weight:700;margin-bottom:16px}
.footer-brand .brand-mark{background:#fff}
.footer-brand .brand-mark i:first-child{background:var(--brand)}
.site-footer p{font-size:14px;color:#93A8C0;line-height:1.8}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14px;color:#A8BDD4}
.footer-links a:hover{color:#fff}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:#A8BDD4;margin-bottom:12px;line-height:1.7}
.footer-contact i{color:var(--amber);margin-top:5px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);padding:22px 0;display:flex;
  align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7E93AC;
}
.to-top{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;color:#A8BDD4;cursor:pointer;
  background:none;border:0;padding:0;transition:color var(--t);
}
.to-top:hover{color:#fff}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .hero .main-img{height:380px}
  .sol-row{gap:40px}
}
@media (max-width:991.98px){
  .section{padding:64px 0}
  .nav-top{flex-wrap:wrap;height:auto;padding:14px 0;gap:14px}
  .site-header.is-scrolled .nav-top{height:auto}
  .nav-search{order:3;flex:1 0 100%;max-width:100%;margin:0}
  .site-header.is-scrolled .nav-search{max-width:100%}
  .nav-actions{order:2;margin-left:auto}
  .nav-toggle{display:flex}
  .chips-row{padding-bottom:12px}
  .hero{padding-top:44px}
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero .main-img{height:320px}
  .float-card{left:auto;right:16px;bottom:-22px;padding:14px 18px;min-width:180px}
  .float-card .fc-value{font-size:26px}
  .trust-bar{grid-template-columns:repeat(2,1fr);margin-top:52px}
  .trust-bar .tb-item:nth-child(2){border-right:0}
  .trust-bar .tb-item:nth-child(1),.trust-bar .tb-item:nth-child(2){border-bottom:1px solid var(--line)}
  .pain-grid{grid-template-columns:1fr;gap:32px}
  .pain-visual img{height:300px}
  .sol-row{grid-template-columns:1fr;gap:28px;padding:30px 0}
  .sol-row.reverse .sol-text{order:1}
  .sol-row.reverse .sol-media{order:2}
  .sol-media img{height:260px}
  .metric-row{grid-template-columns:repeat(2,1fr);gap:28px}
  .result-band{padding:40px 28px}
  .case-grid{grid-template-columns:1fr}
  .quote-grid{grid-template-columns:1fr}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .cta-band{grid-template-columns:1fr;gap:32px;padding:40px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  .wrap{padding:0 16px}
  .section{padding:48px 0}
  .section-sm{padding:40px 0}
  .sec-head h2::before{height:20px;margin-top:4px}
  h2{font-size:22px}
  .post-grid{grid-template-columns:1fr}
  .hero .main-img{height:240px}
  .hero .lede{font-size:16px}
  .hero-cta{gap:10px}
  .btn-primary-x,.btn-outline-x{width:100%;padding:13px 22px}
  .float-card{position:static;margin-top:16px;display:inline-flex;flex-direction:column;min-width:0;width:100%}
  .trust-bar{grid-template-columns:1fr}
  .trust-bar .tb-item{border-right:0;border-bottom:1px solid var(--line)}
  .trust-bar .tb-item:last-child{border-bottom:0}
  .metric-row{grid-template-columns:1fr;gap:24px}
  .result-band{padding:32px 22px;border-radius:16px}
  .post-card .post-body,.case-card .cc-body{padding:18px 16px}
  .quote-card{padding:24px 20px}
  .faq-q{padding:18px 18px;font-size:16px}
  .faq-a{padding:0 18px 20px}
  .cta-band{padding:32px 20px;border-radius:16px}
  .form-card{padding:22px 18px}
  .site-footer{margin-top:56px;padding-top:48px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .mobile-panel a{padding:11px 4px}
}
@media (max-width:575.98px){
  .brand{font-size:18px}
  .brand-mark{width:30px;height:30px}
  h1{font-size:28px}
  .sol-text h3{font-size:19px}
  .pain-list li{padding:16px}
  .metric-row .m-num{font-size:30px}
}

/* roulang page: article */
:root{
  --c-primary:#1D4E89;
  --c-primary-d:#163C6B;
  --c-primary-l:#E9F0F9;
  --c-primary-a:#1D4E8914;
  --c-accent:#C2703C;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --surface-2:#FBFCFE;
  --line:#E3E9F2;
  --ink:#16202E;
  --ink-2:#4A5A70;
  --ink-3:#7C8A9C;
  --danger:#C0442F;
  --r-card:14px;
  --r-img:10px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,32,46,.05), 0 10px 24px -14px rgba(22,32,46,.16);
  --sh-2:0 2px 4px rgba(22,32,46,.06), 0 18px 34px -16px rgba(22,32,46,.22);
  --ease:.2s ease;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--c-primary-d);}
button,input,textarea,select{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:600;line-height:1.28;}
p{margin:0 0 1em;}
ul,ol{margin:0;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:4px;}
.wrap{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.sec{padding:88px 0;}
.sec-tight{padding:64px 0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--c-accent);
  font-weight:500;margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--c-accent);display:block;}
.sec-head{margin-bottom:32px;}
.sec-head h2{
  position:relative;padding-left:14px;
  font-size:clamp(24px,3vw,34px);font-weight:700;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:.18em;width:3px;height:.82em;
  background:var(--c-accent);border-radius:2px;
}
.sec-head p{margin:12px 0 0;color:var(--ink-2);font-size:16px;max-width:760px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.97);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.shrink{box-shadow:var(--sh-1);}
.nav-main{
  display:flex;align-items:center;gap:24px;
  padding-top:16px;padding-bottom:16px;
  transition:padding var(--ease);
}
.site-header.shrink .nav-main{padding-top:8px;padding-bottom:8px;}
.brand{
  display:flex;align-items:center;gap:10px;flex:0 0 auto;
  color:var(--ink);font-weight:700;font-size:19px;letter-spacing:.01em;
}
.brand:hover{color:var(--ink);}
.brand-mark{
  display:flex;align-items:flex-end;gap:3px;height:34px;width:26px;
}
.brand-mark i{display:block;background:var(--c-primary);border-radius:2px;}
.brand-mark i:first-child{width:11px;height:34px;}
.brand-mark i:last-child{width:11px;height:21px;background:var(--c-accent);}
.nav-search{
  flex:1 1 auto;max-width:520px;margin:0 auto;
  display:flex;align-items:center;gap:8px;
  background:var(--surface-2);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:4px 4px 4px 16px;
  transition:max-width var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.site-header.shrink .nav-search{max-width:380px;}
.nav-search:focus-within{border-color:var(--c-primary);box-shadow:0 0 0 4px var(--c-primary-a);}
.nav-search i{color:var(--ink-3);font-size:14px;}
.nav-search input{
  flex:1 1 auto;min-width:0;height:40px;border:0;background:transparent;
  color:var(--ink);outline:none;font-size:15px;
}
.nav-search input::placeholder{color:var(--ink-3);}
.nav-search button{
  flex:0 0 auto;height:40px;padding:0 20px;border:0;border-radius:var(--r-pill);
  background:var(--c-primary);color:#fff;font-size:14px;font-weight:500;
  cursor:pointer;transition:background var(--ease),transform var(--ease);
}
.nav-search button:hover{background:var(--c-primary-d);transform:translateY(-1px);}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);font-weight:500;font-size:15px;
  border:1px solid transparent;cursor:pointer;transition:all var(--ease);
}
.btn-primary{background:var(--c-primary);color:#fff;border-color:var(--c-primary);}
.btn-primary:hover{background:var(--c-primary-d);border-color:var(--c-primary-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-ghost{background:transparent;color:var(--c-primary);border-color:rgba(29,78,137,.45);}
.btn-ghost:hover{background:var(--c-primary-a);color:var(--c-primary-d);border-color:var(--c-primary);transform:translateY(-1px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-link{
  display:inline-flex;align-items:center;gap:6px;color:var(--c-primary);
  border-bottom:1px solid rgba(29,78,137,.4);padding-bottom:2px;font-size:15px;
}
.btn-link:hover{color:var(--c-accent);border-color:var(--c-accent);}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);
  background:var(--surface-2);border-radius:var(--r-btn);color:var(--c-primary);
  cursor:pointer;font-size:16px;transition:all var(--ease);
}
.nav-toggle:hover{border-color:var(--c-primary);background:var(--c-primary-a);}
.chips-row{
  display:flex;gap:10px;align-items:center;
  padding-top:0;padding-bottom:14px;
  overflow-x:auto;white-space:nowrap;
  scrollbar-width:none;
}
.chips-row::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;display:inline-block;
  padding:8px 18px;border-radius:var(--r-pill);
  background:var(--surface-2);border:1px solid var(--line);
  color:var(--ink-2);font-size:14px;
  transition:all var(--ease);
}
.chip:hover{color:var(--c-primary);border-color:rgba(29,78,137,.4);background:var(--c-primary-a);}
.chip.active{background:var(--c-primary);border-color:var(--c-primary);color:#fff;font-weight:500;}

/* ---------- Breadcrumb ---------- */
.crumb{
  font-size:14px;color:var(--ink-3);
  padding-top:28px;padding-bottom:0;
  display:flex;flex-wrap:wrap;gap:6px;align-items:center;
}
.crumb a{color:var(--ink-3);}
.crumb a:hover{color:var(--c-primary);}
.crumb .sep{color:#C4CFDD;}
.crumb .cur{color:var(--c-primary);font-weight:500;}

/* ---------- Article layout ---------- */
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:48px;
  padding-top:24px;
  padding-bottom:72px;
  align-items:start;
}
.article-main{min-width:0;max-width:760px;}
.cat-tag{
  display:inline-block;padding:5px 14px;border-radius:var(--r-pill);
  background:var(--c-primary-l);color:var(--c-primary-d);
  font-size:13px;font-weight:500;margin-bottom:16px;
}
.article-main h1{
  font-size:clamp(28px,3.4vw,40px);
  font-weight:700;line-height:1.32;
  letter-spacing:-.01em;
}
.article-meta{
  display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;
  margin-top:18px;padding-bottom:20px;
  font-size:14px;color:var(--ink-3);
  border-bottom:1px solid var(--line);
}
.article-meta span{display:inline-flex;align-items:center;gap:6px;}
.article-meta i{color:var(--ink-3);}
.article-summary{
  margin-top:22px;padding:18px 22px;
  background:var(--surface-2);border:1px solid var(--line);
  border-left:3px solid var(--c-accent);
  border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--ink-2);font-size:15.5px;line-height:1.9;
}
.article-body{
  margin-top:28px;
  font-size:17px;line-height:1.95;color:var(--ink);
  word-wrap:break-word;overflow-wrap:break-word;
}
.article-body > *:first-child{margin-top:0;}
.article-body h2{
  position:relative;padding-left:14px;
  font-size:clamp(21px,2.2vw,25px);font-weight:700;
  margin:36px 0 18px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;width:3px;height:.8em;
  background:var(--c-accent);border-radius:2px;
}
.article-body h3{font-size:19px;font-weight:600;margin:26px 0 12px;color:var(--c-primary-d);}
.article-body h4{font-size:17px;font-weight:600;margin:20px 0 10px;}
.article-body p{margin:0 0 1.1em;}
.article-body a{color:var(--c-primary);border-bottom:1px solid rgba(29,78,137,.35);}
.article-body a:hover{color:var(--c-accent);border-color:var(--c-accent);}
.article-body ul,.article-body ol{padding-left:1.35em;margin:0 0 1.1em;}
.article-body li{margin-bottom:8px;}
.article-body li::marker{color:var(--c-primary);}
.article-body blockquote{
  margin:22px 0;padding:16px 22px;
  background:var(--surface-2);border-left:3px solid var(--c-accent);
  border-radius:0 var(--r-card) var(--r-card) 0;
  color:var(--ink-2);font-size:16px;line-height:1.9;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  max-width:100%;height:auto;border-radius:var(--r-img);
  margin:22px auto;box-shadow:var(--sh-1);
}
.article-body figure{margin:24px 0;}
.article-body figcaption{
  text-align:center;font-size:13px;color:var(--ink-3);margin-top:10px;
}
.article-body table{
  width:100%;border-collapse:collapse;margin:22px 0;
  font-size:15px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
}
.article-body th,.article-body td{
  border:1px solid var(--line);padding:11px 14px;text-align:left;
}
.article-body thead th{background:var(--c-primary-l);color:var(--c-primary-d);font-weight:600;}
.article-body tbody tr:nth-child(even){background:var(--surface-2);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.article-body code{
  background:var(--c-primary-a);color:var(--c-primary-d);
  padding:2px 6px;border-radius:6px;font-size:15px;
}
.article-foot{
  margin-top:40px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
}
.article-foot .note{font-size:14px;color:var(--ink-3);}

/* ---------- Sidebar ---------- */
.article-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:96px;}
.side-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:20px;
}
.side-card h3{
  font-size:15px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;gap:8px;margin-bottom:14px;
}
.side-card h3 i{color:var(--c-accent);font-size:13px;}
.toc-list{list-style:none;padding:0;margin:0;counter-reset:toc;}
.toc-list li{margin-bottom:8px;}
.toc-list a{
  display:block;font-size:14px;color:var(--ink-2);line-height:1.6;
  padding-left:12px;border-left:2px solid transparent;
  transition:all var(--ease);
}
.toc-list a:hover,.toc-list a.on{color:var(--c-primary);border-left-color:var(--c-accent);}
.side-list{list-style:none;padding:0;margin:0;}
.side-list li{padding:11px 0;border-bottom:1px dashed var(--line);}
.side-list li:last-child{border-bottom:0;padding-bottom:0;}
.side-list a{font-size:14.5px;color:var(--ink-2);line-height:1.6;display:block;}
.side-list a:hover{color:var(--c-primary);}
.side-list span{display:block;font-size:12.5px;color:var(--ink-3);margin-top:4px;}
.side-cta{
  background:linear-gradient(180deg,var(--c-primary) 0%,var(--c-primary-d) 100%);
  color:#fff;border-radius:var(--r-card);padding:22px 20px;box-shadow:var(--sh-1);
}
.side-cta h3{color:#fff;font-size:16px;margin-bottom:8px;}
.side-cta p{color:rgba(255,255,255,.82);font-size:14px;margin-bottom:14px;}
.side-cta .btn{width:100%;background:#fff;color:var(--c-primary);border-color:#fff;}
.side-cta .btn:hover{background:var(--c-accent);color:#fff;border-color:var(--c-accent);}

/* ---------- Empty state ---------- */
.empty-state{
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--r-card);
  padding:48px 24px;text-align:center;margin-top:28px;
}
.empty-state svg{width:64px;height:64px;margin:0 auto 16px;color:var(--c-primary);opacity:.7;}
.empty-state p{font-size:15px;color:var(--ink-2);margin-bottom:18px;}

/* ---------- Related ---------- */
.related-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
}
.card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D5DFEC;}
.card-thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--c-primary-l);}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.card:hover .card-thumb img{transform:scale(1.02);}
.card-body{padding:20px;display:flex;flex-direction:column;flex:1 1 auto;}
.card-body h3{
  font-size:18px;font-weight:600;line-height:1.45;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-body h3 a{color:var(--ink);}
.card-body h3 a:hover{color:var(--c-primary);}
.card-body p{
  margin:10px 0 0;font-size:14.5px;color:var(--ink-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:14px;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--ink-3);border-top:1px solid var(--line);
}
.card-foot .tag{
  background:var(--c-primary-l);color:var(--c-primary-d);
  padding:3px 10px;border-radius:var(--r-pill);font-size:12.5px;
}

/* ---------- CTA ---------- */
.cta-band{
  background:linear-gradient(180deg,#EFF4FB 0%,var(--c-primary-l) 100%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:24px;padding:56px 0;
}
.cta-inner h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;margin-bottom:10px;}
.cta-inner p{color:var(--ink-2);margin:0;max-width:620px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- Footer ---------- */
.site-footer{background:#102A45;color:rgba(255,255,255,.78);padding-top:64px;}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;padding-bottom:44px;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:19px;font-weight:700;margin-bottom:16px;
}
.footer-brand .brand-mark i:first-child{background:#fff;}
.footer-brand .brand-mark i:last-child{background:var(--c-accent);}
.site-footer p{font-size:14px;line-height:1.9;color:rgba(255,255,255,.68);}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;}
.footer-links,.footer-contact{list-style:none;padding:0;margin:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a,.footer-contact li{color:rgba(255,255,255,.72);font-size:14px;}
.footer-links a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;margin-bottom:10px;line-height:1.7;}
.footer-contact i{color:var(--c-accent);margin-top:5px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.08);color:#fff;border:1px solid rgba(255,255,255,.2);
  border-radius:var(--r-pill);padding:8px 18px;font-size:13px;cursor:pointer;
  transition:all var(--ease);
}
.to-top:hover{background:var(--c-accent);border-color:var(--c-accent);}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 280px;gap:32px;}
}
@media (max-width:991px){
  .sec{padding:64px 0;}
  .sec-tight{padding:48px 0;}
  .nav-main{flex-wrap:wrap;gap:12px;}
  .brand{order:1;}
  .nav-actions{order:2;margin-left:auto;}
  .nav-search{order:3;flex:1 0 100%;max-width:100%;margin:4px 0 0;}
  .site-header.shrink .nav-search{max-width:100%;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:32px;padding-bottom:56px;}
  .article-main{max-width:100%;}
  .article-side{position:static;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px;}
  .cta-inner{padding:44px 0;}
}
@media (max-width:767px){
  .wrap{padding-left:16px;padding-right:16px;}
  .sec{padding:48px 0;}
  .sec-head h2{font-size:22px;}
  .article-body{font-size:17px;line-height:1.95;}
  .related-grid{grid-template-columns:minmax(0,1fr);}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .btn{padding:12px 22px;}
}
@media (max-width:575px){
  .card-body{padding:16px;}
  .side-card{padding:16px;}
  .article-main h1{font-size:26px;}
  .article-meta{font-size:13px;gap:6px 14px;}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
  .footer-bottom{font-size:12px;}
  .nav-search{padding-left:12px;}
  .nav-search button{padding:0 14px;}
}

/* roulang page: category1 */
:root{
  --brand:#1D4E89;
  --brand-d:#163C6B;
  --brand-l:#E9F0F9;
  --brand-a:rgba(29,78,137,.08);
  --accent:#C2703C;
  --bg:#F6F8FB;
  --card:#FFFFFF;
  --soft:#FBFCFE;
  --line:#E3E9F2;
  --ink:#16202E;
  --ink-2:#4A5A70;
  --ink-3:#7C8A9C;
  --warn:#C0442F;
  --r-card:14px;
  --r-img:10px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,32,46,.05),0 10px 24px -14px rgba(22,32,46,.16);
  --sh-2:0 2px 4px rgba(22,32,46,.06),0 18px 34px -16px rgba(22,32,46,.22);
  --ease:.2s ease;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand);text-decoration:none;transition:color var(--ease),background-color var(--ease),border-color var(--ease)}
a:hover{color:var(--brand-d)}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,h5{margin:0;line-height:1.28;font-weight:700;color:var(--ink)}
h1{font-size:clamp(30px,4.4vw,46px);font-weight:700}
h2{font-size:clamp(24px,3vw,34px)}
h3{font-size:21px}
h4{font-size:18px}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px}
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0,0,0,0);white-space:nowrap;border:0}

.wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.block{padding:88px 0}
.block-tight{padding:56px 0}
.block-soft{background:var(--soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease),background-color var(--ease);
}
.site-header.is-scrolled{box-shadow:var(--sh-1)}
.header-inner{padding-top:14px;padding-bottom:10px;transition:padding var(--ease)}
.site-header.is-scrolled .header-inner{padding-top:6px;padding-bottom:6px}
.header-main{display:flex;flex-wrap:wrap;align-items:center;gap:12px 24px;min-height:64px;transition:min-height var(--ease)}
.site-header.is-scrolled .header-main{min-height:48px}

.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.2px;order:1}
.brand:hover{color:var(--brand)}
.brand-mark{position:relative;display:inline-block;width:34px;height:32px;flex:none}
.brand-mark i{position:absolute;border-radius:3px;display:block}
.brand-mark i:first-child{left:0;bottom:0;width:20px;height:22px;background:var(--brand)}
.brand-mark i:last-child{right:0;top:0;width:9px;height:26px;background:var(--accent)}

.search-form{
  order:2;
  flex:1 1 360px;
  max-width:520px;
  margin:0 auto;
  display:flex;align-items:center;gap:8px;
  background:var(--soft);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:5px 5px 5px 18px;
  transition:max-width var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.search-form:focus-within{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-a);background:#fff}
.site-header.is-scrolled .search-form{max-width:380px}
.search-form .s-ico{color:var(--ink-3);font-size:15px}
.search-form input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:15px;padding:9px 0;color:var(--ink);
}
.search-form input::placeholder{color:var(--ink-3)}
.s-btn{
  flex:none;border:0;border-radius:var(--r-pill);
  background:var(--brand);color:#fff;font-size:14px;font-weight:500;
  padding:9px 22px;cursor:pointer;transition:background-color var(--ease),transform var(--ease);
}
.s-btn:hover{background:var(--brand-d);transform:translateY(-1px)}
.s-btn:active{transform:translateY(0)}

.header-actions{order:3;display:flex;align-items:center;gap:10px;margin-left:auto}
.btn-ghost{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--brand);color:var(--brand);background:transparent;
  border-radius:var(--r-btn);padding:10px 22px;font-size:14px;font-weight:500;
  transition:background-color var(--ease),transform var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-ghost:hover{background:var(--brand-a);color:var(--brand-d);transform:translateY(-1px)}

.cat-drop{position:relative}
.cat-toggle{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid var(--line);background:var(--soft);color:var(--ink-2);
  border-radius:var(--r-btn);padding:10px 18px;font-size:14px;cursor:pointer;
  transition:border-color var(--ease),color var(--ease),background-color var(--ease);
}
.cat-toggle:hover{border-color:var(--brand);color:var(--brand);background:var(--brand-a)}
.cat-menu{
  position:absolute;right:0;top:calc(100% + 10px);width:212px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);padding:8px;display:none;z-index:20;
}
.cat-menu.open{display:block}
.cat-menu a{display:block;padding:10px 14px;border-radius:8px;font-size:14px;color:var(--ink-2)}
.cat-menu a:hover{background:var(--brand-a);color:var(--brand)}
.cat-menu a.active{background:var(--brand);color:#fff}

.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line);background:var(--soft);
  border-radius:var(--r-btn);color:var(--ink-2);cursor:pointer;
}
.nav-toggle:hover{border-color:var(--brand);color:var(--brand)}

.chips-row{display:flex;gap:10px;padding:6px 0 12px;overflow-x:auto;scrollbar-width:none}
.chips-row::-webkit-scrollbar{display:none}
.chip{
  flex:none;display:inline-flex;align-items:center;
  padding:7px 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--soft);color:var(--ink-2);
  font-size:14px;white-space:nowrap;
  transition:color var(--ease),border-color var(--ease),background-color var(--ease);
}
.chip:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-a)}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff}
.chip.active:hover{color:#fff;background:var(--brand-d)}

.mobile-menu{display:none;border-top:1px solid var(--line);padding:10px 0 14px}
.mobile-menu.open{display:block}
.mobile-menu a{display:block;padding:11px 4px;font-size:15px;color:var(--ink-2);border-bottom:1px solid var(--line)}
.mobile-menu a:last-child{border-bottom:0}
.mobile-menu a.active{color:var(--brand);font-weight:600}

/* ---------- banner ---------- */
.page-banner{position:relative;overflow:hidden;background:#102A45}
.banner-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.banner-veil{position:absolute;inset:0;background:linear-gradient(100deg,rgba(16,42,69,.90) 0%,rgba(16,42,69,.72) 48%,rgba(22,60,107,.55) 100%)}
.banner-inner{position:relative;z-index:2;padding-top:64px;padding-bottom:56px;min-height:268px;display:flex;flex-direction:column;justify-content:flex-end;color:#fff}
.crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.7);margin-bottom:18px}
.crumb a{color:rgba(255,255,255,.7)}
.crumb a:hover{color:#fff}
.crumb .cur{color:#fff}
.page-banner h1{color:#fff;max-width:840px}
.banner-sub{color:rgba(255,255,255,.82);font-size:17px;line-height:1.8;margin:14px 0 0;max-width:700px}

/* ---------- 数据指标带 ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.stat-item{padding:26px 24px;border-right:1px solid var(--line)}
.stat-item:last-child{border-right:0}
.stat-num{font-size:clamp(28px,3.4vw,36px);font-weight:700;color:var(--brand);line-height:1.1;letter-spacing:.5px}
.stat-num small{font-size:15px;font-weight:500;color:var(--ink-2);margin-left:4px}
.stat-label{margin-top:8px;font-size:14px;color:var(--ink-2)}
.stat-note{margin-top:4px;font-size:13px;color:var(--ink-3)}

/* ---------- 主体布局 ---------- */
.layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:40px;align-items:start;padding-top:72px;padding-bottom:72px}

.side-toc{
  position:sticky;top:100px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:20px 16px;
}
.side-toc h2{font-size:15px;color:var(--ink-3);font-weight:600;letter-spacing:.5px;padding:0 10px 10px;border-bottom:1px solid var(--line);margin-bottom:8px}
.toc-list{list-style:none}
.toc-list a{
  display:block;padding:9px 10px 9px 14px;font-size:14px;color:var(--ink-2);
  border-left:2px solid transparent;border-radius:0 8px 8px 0;
  transition:color var(--ease),background-color var(--ease),border-color var(--ease);
}
.toc-list a:hover{color:var(--brand);border-left-color:var(--accent);background:var(--brand-a)}
.toc-list a.is-active{color:var(--brand);font-weight:600;border-left-color:var(--brand);background:var(--brand-a)}
.toc-help{margin-top:16px;padding:14px;border-radius:10px;background:var(--brand-l);font-size:14px;color:var(--brand-d);line-height:1.75}
.toc-help a{display:inline-block;margin-top:6px;font-weight:500;border-bottom:1px solid currentColor}

.dir-main{min-width:0}
.dir-group{margin-bottom:44px;scroll-margin-top:104px}
.dir-group:last-child{margin-bottom:0}
.sec-title{display:flex;align-items:center;gap:12px}
.sec-title::before{content:"";width:3px;height:22px;border-radius:2px;background:var(--accent);flex:none}
.group-desc{margin:10px 0 18px;color:var(--ink-2);font-size:15px;max-width:760px}

.dir-list{
  list-style:none;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;
}
.dir-item{
  display:flex;align-items:flex-start;gap:16px;
  padding:18px 22px;border-bottom:1px solid var(--line);
  color:inherit;transition:background-color var(--ease),box-shadow var(--ease);
}
.dir-item:last-child{border-bottom:0}
.dir-item:hover{background:var(--soft)}
.dir-item:hover .dir-title{color:var(--brand)}
.dir-item:hover .dir-arrow{color:var(--accent);transform:translateX(3px)}
.dir-index{
  flex:none;width:30px;font-size:13px;font-weight:600;color:var(--accent);
  font-variant-numeric:tabular-nums;padding-top:2px;
}
.dir-body{flex:1 1 auto;min-width:0}
.dir-title{font-size:16px;font-weight:600;color:var(--ink);transition:color var(--ease)}
.dir-desc{margin-top:4px;font-size:14px;color:var(--ink-3);line-height:1.75}
.dir-arrow{flex:none;color:var(--ink-3);font-size:13px;padding-top:3px;transition:color var(--ease),transform var(--ease)}

/* ---------- 指引区 ---------- */
.guide-grid{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:center}
.guide-figure{margin:0;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);border:1px solid var(--line)}
.guide-figure img{width:100%;aspect-ratio:16/11;object-fit:cover}
.guide-figure figcaption{font-size:13px;color:var(--ink-3);padding:12px 16px;background:#fff;border-top:1px solid var(--line)}
.step-list{list-style:none;margin-top:22px}
.step-list li{display:flex;gap:14px;padding:12px 0;border-bottom:1px dashed var(--line)}
.step-list li:last-child{border-bottom:0}
.step-num{
  flex:none;width:26px;height:26px;border-radius:50%;background:var(--brand-l);color:var(--brand);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:600;margin-top:4px;
}
.step-list strong{font-size:15px;font-weight:600;display:block}
.step-list span{font-size:14px;color:var(--ink-2)}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:500;
  border-bottom:1px solid var(--brand);padding-bottom:2px;
}
.text-link:hover{color:var(--accent);border-bottom-color:var(--accent)}

/* ---------- FAQ ---------- */
.faq-wrap{background:var(--soft);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item:last-child{border-bottom:0}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;text-align:left;cursor:pointer;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);
  transition:background-color var(--ease),color var(--ease);
}
.faq-q:hover{background:var(--brand-a);color:var(--brand)}
.faq-q i{color:var(--accent);font-size:14px;transition:transform var(--ease)}
.faq-item.open .faq-q{color:var(--brand)}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{display:none;padding:0 24px 22px;font-size:15px;color:var(--ink-2);line-height:1.85}
.faq-item.open .faq-a{display:block}
.faq-item.open{box-shadow:inset 3px 0 0 var(--brand)}

/* ---------- CTA ---------- */
.cta-section{background:var(--brand-l);border-top:1px solid var(--line);padding:76px 0}
.cta-grid{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start}
.cta-copy h2{margin-bottom:14px}
.cta-copy p{color:var(--ink-2);font-size:16px}
.cta-points{list-style:none;margin-top:22px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--ink-2);padding:7px 0}
.cta-points i{color:var(--accent);margin-top:6px;font-size:13px}

.form-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);padding:28px}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:14px;font-weight:500;color:var(--ink-2);margin-bottom:8px}
.form-row input,.form-row textarea{
  width:100%;border:1px solid #D8E1EE;border-radius:var(--r-btn);
  padding:12px 14px;font-size:15px;background:#fff;outline:none;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.form-row input{height:46px;padding:0 14px}
.form-row textarea{min-height:104px;resize:vertical;line-height:1.7}
.form-row input:focus,.form-row textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px var(--brand-a)}
.form-row input::placeholder,.form-row textarea::placeholder{color:var(--ink-3)}
.btn-primary-solid{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  width:100%;border:0;border-radius:var(--r-btn);
  background:var(--brand);color:#fff;font-size:15px;font-weight:500;
  padding:14px 28px;cursor:pointer;
  transition:background-color var(--ease),transform var(--ease);
}
.btn-primary-solid:hover{background:var(--brand-d);transform:translateY(-1px)}
.btn-primary-solid:active{transform:translateY(0)}
.form-note{margin-top:14px;font-size:14px;color:var(--brand-d);min-height:20px}
.form-tip{margin-top:12px;font-size:13px;color:var(--ink-3)}

/* ---------- footer ---------- */
.site-footer{background:#102A45;color:#fff;margin-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:40px;padding:64px 0 40px}
.site-footer h4{font-size:16px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand .brand-mark i:first-child{background:#fff}
.footer-brand .brand-mark i:last-child{background:var(--accent)}
.site-footer p{font-size:14px;color:rgba(255,255,255,.66);line-height:1.85;max-width:340px}
.footer-links,.footer-contact{list-style:none}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;color:rgba(255,255,255,.7)}
.footer-links a:hover{color:#fff;text-decoration:underline}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.7);margin-bottom:12px;align-items:flex-start}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0 26px;
  font-size:13px;color:rgba(255,255,255,.58);
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;border:1px solid rgba(255,255,255,.32);color:rgba(255,255,255,.82);
  border-radius:var(--r-pill);padding:8px 18px;font-size:13px;cursor:pointer;
  transition:background-color var(--ease),border-color var(--ease),color var(--ease);
}
.to-top:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .layout{grid-template-columns:220px minmax(0,1fr);gap:32px}
  .footer-grid{grid-template-columns:1.4fr 1fr 1.2fr;gap:32px}
}
@media (max-width:991.98px){
  .block{padding:64px 0}
  .block-tight{padding:44px 0}
  .brand{order:1}
  .header-actions{order:2}
  .search-form{order:3;flex:1 1 100%;max-width:none;margin:0}
  .site-header.is-scrolled .search-form{max-width:none}
  .cat-drop{display:none}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .layout{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:52px;padding-bottom:52px}
  .side-toc{position:static;top:auto}
  .stat-strip{grid-template-columns:repeat(2,1fr)}
  .stat-item:nth-child(2){border-right:0}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
  .guide-grid{grid-template-columns:1fr;gap:28px}
  .cta-grid{grid-template-columns:1fr;gap:32px}
  .cta-section{padding:56px 0}
  .banner-inner{padding-top:48px;padding-bottom:42px;min-height:236px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:52px 0 32px}
}
@media (max-width:767.98px){
  .wrap{padding:0 16px}
  .block{padding:48px 0}
  .block-tight{padding:36px 0}
  h2{font-size:22px}
  .banner-sub{font-size:16px}
  .stat-strip{grid-template-columns:1fr}
  .stat-item{border-right:0;border-bottom:1px solid var(--line)}
  .stat-item:last-child{border-bottom:0}
  .crumb{font-size:13px;flex-wrap:wrap}
  .dir-item{padding:16px 16px;gap:12px}
  .faq-q{padding:16px 16px;font-size:16px}
  .faq-a{padding:0 16px 18px}
  .form-card{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:575.98px){
  .brand{font-size:17px}
  .btn-ghost{padding:9px 16px;font-size:14px}
  .chip{padding:6px 14px;font-size:13px}
  .page-banner h1{font-size:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}

/* roulang page: category2 */
:root{
  --primary:#1D4E89;
  --primary-dark:#163C6B;
  --primary-light:#E9F0F9;
  --primary-tint:rgba(29,78,137,.08);
  --accent:#C2703C;
  --warning:#C0442F;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --surface-soft:#FBFCFE;
  --line:#E3E9F2;
  --line-strong:#D8E1EE;
  --ink:#16202E;
  --ink-2:#4A5A70;
  --ink-3:#7C8A9C;
  --deep:#102A45;
  --r-card:14px;
  --r-img:10px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(22,32,46,.05), 0 10px 24px -14px rgba(22,32,46,.16);
  --sh-2:0 2px 4px rgba(22,32,46,.06), 0 18px 34px -16px rgba(22,32,46,.22);
  --ease:.2s ease;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease),border-color var(--ease),background-color var(--ease);}
a:hover{color:var(--primary-dark);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;line-height:1.28;font-weight:700;color:var(--ink);}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
.wrap{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(255,255,255,.97);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.scrolled{box-shadow:var(--sh-1);}
.header-main{
  display:flex;align-items:center;gap:24px;
  padding:20px 0;
  transition:padding var(--ease);
}
.site-header.scrolled .header-main{padding:11px 0;}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--ink);font-weight:700;}
.brand:hover{color:var(--primary);}
.brand-mark{
  display:inline-flex;align-items:flex-end;gap:3px;height:32px;width:32px;flex:0 0 auto;
}
.brand-mark i{display:block;background:var(--primary);border-radius:2px;}
.brand-mark i:first-child{width:12px;height:32px;}
.brand-mark i:last-child{width:12px;height:19px;background:var(--accent);}
.brand-text{font-size:19px;letter-spacing:.4px;white-space:nowrap;}
.search-box{
  flex:1 1 auto;max-width:520px;margin:0 auto;
  display:flex;align-items:center;gap:10px;
  background:var(--surface-soft);
  border:1px solid var(--line-strong);
  border-radius:var(--r-pill);
  padding:5px 5px 5px 18px;
  transition:border-color var(--ease),box-shadow var(--ease),max-width var(--ease);
}
.site-header.scrolled .search-box{max-width:380px;}
.search-box:focus-within{border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-tint);}
.search-box i{color:var(--ink-3);font-size:14px;}
.search-box input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:14.5px;color:var(--ink);padding:8px 0;
}
.search-box input::placeholder{color:var(--ink-3);}
.search-box button{
  border:0;border-radius:var(--r-pill);
  background:var(--primary);color:#fff;
  padding:9px 20px;font-size:14px;font-weight:500;cursor:pointer;
  transition:background-color var(--ease);
}
.search-box button:hover{background:var(--primary-dark);}
.header-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;
  border:1px solid var(--primary);border-radius:var(--r-btn);
  color:var(--primary);background:transparent;
  padding:9px 18px;font-size:14px;font-weight:500;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease);
}
.btn-ghost:hover{background:var(--primary-tint);color:var(--primary-dark);border-color:var(--primary-dark);}
.btn-drop{
  display:inline-flex;align-items:center;gap:7px;
  border:1px solid var(--line-strong);border-radius:var(--r-btn);
  background:var(--surface);color:var(--ink-2);
  padding:9px 16px;font-size:14px;font-weight:500;cursor:pointer;
  transition:border-color var(--ease),color var(--ease);
}
.btn-drop:hover{border-color:var(--primary);color:var(--primary);}
.btn-drop i{font-size:11px;}
.dropdown-menu{
  border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-2);padding:8px;min-width:190px;
}
.dropdown-menu li a{
  display:block;padding:9px 12px;border-radius:8px;
  font-size:14.5px;color:var(--ink-2);
}
.dropdown-menu li a:hover{background:var(--primary-light);color:var(--primary);}
.chips-row{
  display:flex;align-items:center;gap:10px;
  padding:0 0 14px;
  overflow-x:auto;overflow-y:hidden;
  scrollbar-width:none;
}
.chips-row::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  display:inline-block;
  padding:7px 18px;
  border:1px solid var(--line-strong);
  border-radius:var(--r-pill);
  background:var(--surface-soft);
  color:var(--ink-2);font-size:13.5px;font-weight:500;
  transition:all var(--ease);
  white-space:nowrap;
}
.chip:hover{color:var(--primary);border-color:var(--primary);}
.chip.active{background:var(--primary);border-color:var(--primary);color:#fff;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  background-color:var(--primary-light);
  background-image:
    linear-gradient(100deg,#F6F8FB 0%,#F6F8FB 42%,rgba(246,248,251,.6) 66%,rgba(246,248,251,.06) 100%),
    url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center right;
  border-bottom:1px solid var(--line);
}
.page-hero .wrap{padding-top:34px;padding-bottom:44px;min-height:262px;display:flex;flex-direction:column;justify-content:center;}
.breadcrumb-line{
  font-size:14px;color:var(--ink-3);margin-bottom:16px;
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.breadcrumb-line a{color:var(--ink-3);}
.breadcrumb-line a:hover{color:var(--primary);}
.breadcrumb-line .sep{color:var(--line-strong);}
.breadcrumb-line .current{color:var(--primary);}
.page-hero h1{
  font-size:clamp(28px,3.6vw,42px);
  font-weight:700;
  max-width:760px;
  margin-bottom:16px;
}
.page-hero .lede{
  max-width:640px;
  font-size:16.5px;color:var(--ink-2);
  margin-bottom:22px;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;}
.pill-tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.86);
  border:1px solid rgba(29,78,137,.16);
  color:var(--primary-dark);font-size:13px;font-weight:500;
}
.pill-tag i{color:var(--accent);font-size:12px;}

/* ---------- sections ---------- */
.section{padding:88px 0;}
.section.soft{background:var(--surface-soft);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{
  font-size:clamp(24px,3vw,34px);
  margin-bottom:14px;position:relative;padding-left:16px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.24em;width:3px;height:.86em;
  background:var(--accent);border-radius:2px;
}
.section-head p{color:var(--ink-2);font-size:16px;}
.eyebrow{
  display:inline-block;font-size:13px;font-weight:500;letter-spacing:1px;
  color:var(--accent);margin-bottom:12px;text-transform:uppercase;
}

/* ---------- filters ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  margin-bottom:32px;
}
.filter-bar .filter-label{font-size:14px;color:var(--ink-3);margin-right:4px;}
.filter-btn{
  border:1px solid var(--line-strong);border-radius:var(--r-pill);
  background:var(--surface);color:var(--ink-2);
  padding:8px 18px;font-size:14px;cursor:pointer;
  transition:all var(--ease);
}
.filter-btn:hover{border-color:var(--primary);color:var(--primary);}
.filter-btn.active{background:var(--primary);border-color:var(--primary);color:#fff;}

/* ---------- plan cards ---------- */
.plan-grid{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:24px;
  margin-bottom:24px;
}
.plan-grid.rev{grid-template-columns:1fr 1.35fr;}
.plan-card{
  display:flex;flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.plan-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(29,78,137,.28);}
.plan-card .thumb{
  position:relative;overflow:hidden;background:var(--primary-light);
}
.plan-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.plan-card .thumb::after{
  content:"";position:absolute;inset:0;background:rgba(29,78,137,.06);
}
.plan-card:hover .thumb img{transform:scale(1.02);}
.plan-card .body{padding:22px 24px 24px;display:flex;flex-direction:column;flex:1 1 auto;}
.plan-card .tag{
  align-self:flex-start;
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--primary-light);color:var(--primary-dark);
  font-size:13px;font-weight:500;margin-bottom:12px;
}
.plan-card h3{font-size:20px;margin-bottom:10px;}
.plan-card p{color:var(--ink-2);font-size:15px;line-height:1.8;margin-bottom:16px;}
.point-list{display:flex;flex-wrap:wrap;gap:8px;margin-bottom:18px;}
.point-list li{
  font-size:13px;color:var(--ink-2);
  background:var(--surface-soft);border:1px solid var(--line);
  border-radius:8px;padding:4px 10px;
}
.text-link{
  display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:500;color:var(--primary);
  border-bottom:1px solid transparent;padding-bottom:2px;
  margin-top:auto;align-self:flex-start;
}
.text-link:hover{color:var(--accent);border-bottom-color:var(--accent);}
.plan-card.wide{flex-direction:row;}
.plan-card.wide .thumb{flex:0 0 42%;min-height:230px;}
.plan-card.wide .body{flex:1 1 auto;justify-content:center;}
.plan-card.tall .thumb{aspect-ratio:16/10;}

/* ---------- stats strip ---------- */
.stats-strip{
  background:var(--deep);
  color:#fff;
  border-radius:20px;
  padding:44px 40px;
}
.stats-strip h2{
  color:#fff;font-size:clamp(22px,2.4vw,28px);margin-bottom:12px;
}
.stats-strip .sub{color:rgba(255,255,255,.72);font-size:15px;max-width:640px;margin-bottom:32px;}
.stats-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
}
.stat-item{border-left:2px solid rgba(194,112,60,.85);padding-left:18px;}
.stat-item .num{
  font-size:clamp(28px,3.2vw,36px);font-weight:700;line-height:1.1;
  color:#fff;letter-spacing:.5px;
}
.stat-item .num span{font-size:16px;font-weight:500;margin-left:4px;color:rgba(255,255,255,.72);}
.stat-item .label{font-size:14px;color:rgba(255,255,255,.7);margin-top:8px;line-height:1.6;}

/* ---------- path steps ---------- */
.path-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.path-step{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:24px;box-shadow:var(--sh-1);position:relative;
  transition:transform var(--ease),box-shadow var(--ease);
}
.path-step:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.path-step .idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:50%;
  background:var(--primary);color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;
}
.path-step h3{font-size:18px;margin-bottom:10px;}
.path-step p{font-size:14.5px;color:var(--ink-2);line-height:1.8;}

/* ---------- pager ---------- */
.pager{
  display:flex;justify-content:center;align-items:center;gap:10px;
  margin-top:40px;flex-wrap:wrap;
}
.pager button{
  min-width:42px;height:42px;padding:0 14px;
  border-radius:var(--r-pill);border:1px solid var(--line-strong);
  background:var(--surface);color:var(--ink-2);
  font-size:14px;cursor:pointer;transition:all var(--ease);
}
.pager button:hover{border-color:var(--primary);color:var(--primary);}
.pager button.current{background:var(--primary);border-color:var(--primary);color:#fff;font-weight:600;}

/* ---------- FAQ ---------- */
.faq-box{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);
}
.faq-item + .faq-item{border-top:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:transparent;border:0;text-align:left;cursor:pointer;
  padding:22px 24px;font-size:17px;font-weight:600;color:var(--ink);
  transition:background-color var(--ease),color var(--ease);
}
.faq-q:hover{background:var(--surface-soft);color:var(--primary);}
.faq-q i{color:var(--accent);font-size:14px;transition:transform var(--ease);flex:0 0 auto;}
.faq-q[aria-expanded="true"]{color:var(--primary);}
.faq-q[aria-expanded="true"] i{transform:rotate(180deg);}
.faq-a{padding:0 24px 24px;}
.faq-a p{font-size:15px;line-height:1.85;color:var(--ink-2);}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--primary-light);
  border:1px solid rgba(29,78,137,.14);
  border-radius:20px;
  padding:48px 44px;
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:12px;}
.cta-band .sub{color:var(--ink-2);font-size:16px;max-width:560px;margin-bottom:28px;}
.form-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.form-grid .full{grid-column:1 / -1;}
.field label{display:block;font-size:14px;font-weight:500;color:var(--ink);margin-bottom:8px;}
.field input,.field textarea{
  width:100%;border:1px solid var(--line-strong);border-radius:var(--r-btn);
  background:var(--surface);color:var(--ink);
  padding:12px 14px;font-size:15px;font-family:inherit;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field input{height:46px;}
.field textarea{min-height:110px;resize:vertical;line-height:1.75;}
.field input:focus,.field textarea:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 4px var(--primary-tint);}
.field input::placeholder,.field textarea::placeholder{color:var(--ink-3);}
.form-submit{margin-top:24px;display:flex;align-items:center;gap:16px;flex-wrap:wrap;}
.btn-primary{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--primary);border:1px solid var(--primary);border-radius:var(--r-btn);
  color:#fff;padding:14px 28px;font-size:15px;font-weight:500;cursor:pointer;
  transition:background-color var(--ease),transform var(--ease),border-color var(--ease);
}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-1px);color:#fff;}
.form-note{font-size:13px;color:var(--ink-3);}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:rgba(255,255,255,.82);margin-top:64px;}
.site-footer .wrap{padding-top:64px;padding-bottom:28px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:#fff;margin-bottom:16px;}
.site-footer .brand-mark i:first-child{background:#fff;}
.site-footer .brand-mark i:last-child{background:var(--accent);}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.66);max-width:340px;}
.site-footer h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:18px;}
.footer-links li{margin-bottom:12px;}
.footer-links a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-links a:hover{color:#fff;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:rgba(255,255,255,.72);margin-bottom:14px;line-height:1.7;}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom span{font-size:13px;color:rgba(255,255,255,.6);}
.to-top{
  display:inline-flex;align-items:center;gap:8px;
  background:transparent;border:1px solid rgba(255,255,255,.28);
  border-radius:var(--r-pill);color:rgba(255,255,255,.86);
  padding:8px 16px;font-size:13px;cursor:pointer;
  transition:all var(--ease);
}
.to-top:hover{background:rgba(255,255,255,.12);border-color:rgba(255,255,255,.5);}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .plan-grid{grid-template-columns:1.25fr 1fr;}
}
@media (max-width:991.98px){
  .section{padding:64px 0;}
  .header-main{flex-wrap:wrap;padding:14px 0;row-gap:12px;}
  .search-box{order:3;flex-basis:100%;max-width:none;margin:0;}
  .site-header.scrolled .search-box{max-width:none;}
  .chips-row{padding-bottom:12px;}
  .page-hero .wrap{padding-top:26px;padding-bottom:34px;min-height:230px;}
  .plan-grid,.plan-grid.rev{grid-template-columns:1fr;}
  .plan-card.wide{flex-direction:column;}
  .plan-card.wide .thumb{flex:0 0 auto;aspect-ratio:16/10;min-height:0;}
  .stats-grid{grid-template-columns:repeat(2,1fr);row-gap:28px;}
  .path-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767.98px){
  .cta-band{padding:32px 22px;}
  .form-grid{grid-template-columns:1fr;}
  .stats-strip{padding:32px 22px;border-radius:16px;}
  .section-head{margin-bottom:32px;}
}
@media (max-width:575.98px){
  .wrap{padding:0 16px;}
  .section{padding:48px 0;}
  .section-head h2{font-size:22px;}
  .page-hero h1{font-size:27px;}
  .page-hero .lede{font-size:15px;}
  .plan-card .body{padding:18px 16px 20px;}
  .plan-card h3{font-size:18px;}
  .stats-grid{grid-template-columns:1fr;}
  .path-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .brand-text{font-size:17px;}
  .header-actions{gap:8px;}
  .btn-ghost,.btn-drop{padding:8px 12px;font-size:13px;}
  .search-box button{padding:8px 15px;}
  .faq-q{padding:18px 16px;font-size:16px;}
  .faq-a{padding:0 16px 20px;}
  .btn-primary{width:100%;justify-content:center;}
}

/* roulang page: category3 */
:root{
  --brand:#1D4E89;
  --brand-d:#163C6B;
  --brand-l:#E9F0F9;
  --brand-a:#1D4E8914;
  --accent:#C2703C;
  --bg:#F6F8FB;
  --surface:#FFFFFF;
  --surface-2:#FBFCFE;
  --line:#E3E9F2;
  --ink:#16202E;
  --ink-2:#4A5A70;
  --ink-3:#7C8A9C;
  --warn:#C0442F;
  --r-card:14px;
  --r-img:10px;
  --r-btn:10px;
  --sh-1:0 1px 2px rgba(22,32,46,.05), 0 10px 24px -14px rgba(22,32,46,.16);
  --sh-2:0 2px 4px rgba(22,32,46,.06), 0 18px 34px -16px rgba(22,32,46,.22);
  --ease:.2s ease;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--ease)}
a:hover{color:var(--accent)}
h1,h2,h3,h4{font-weight:600;line-height:1.28;color:var(--ink);margin:0}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.wrap{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.95);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
  transition:box-shadow var(--ease);
}
.site-header.scrolled{box-shadow:var(--sh-1)}
.header-main{
  display:flex;align-items:center;gap:24px;
  min-height:88px;
  transition:min-height var(--ease);
}
.site-header.scrolled .header-main{min-height:64px}
.logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{display:inline-flex;align-items:flex-end;gap:3px;height:26px}
.brand-mark i{display:block;background:var(--brand);border-radius:3px}
.brand-mark i:first-child{width:8px;height:26px}
.brand-mark i:last-child{width:14px;height:15px;background:var(--accent)}
.logo-text{font-size:20px;font-weight:700;color:var(--ink);letter-spacing:.5px}
.nav-search{position:relative;flex:1 1 auto;max-width:520px;transition:max-width var(--ease)}
.site-header.scrolled .nav-search{max-width:380px}
.nav-search input{
  width:100%;height:46px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface-2);
  padding:0 108px 0 44px;font-size:15px;color:var(--ink);
  transition:var(--ease);
}
.nav-search input::placeholder{color:var(--ink-3)}
.nav-search input:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px var(--brand-a)}
.nav-search .s-ico{position:absolute;left:17px;top:50%;transform:translateY(-50%);color:var(--ink-3);font-size:14px;pointer-events:none}
.nav-search button{
  position:absolute;right:5px;top:5px;height:36px;border:0;border-radius:999px;
  background:var(--brand);color:#fff;padding:0 18px;font-size:14px;font-weight:500;
  cursor:pointer;transition:var(--ease);
}
.nav-search button:hover{background:var(--brand-d);transform:translateY(-1px)}
.header-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-btn);border:1px solid transparent;
  padding:14px 28px;font-size:15px;font-weight:500;cursor:pointer;
  transition:var(--ease);white-space:nowrap;text-align:center;
}
.btn-primary{background:var(--brand);color:#fff}
.btn-primary:hover{background:var(--brand-d);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-1)}
.btn-ghost{background:transparent;border-color:var(--brand);color:var(--brand);padding:12px 22px}
.btn-ghost:hover{background:var(--brand-a);color:var(--brand-d)}
.btn-line{background:transparent;border:0;color:var(--brand);padding:0;border-bottom:1px solid var(--brand);border-radius:0}
.btn-line:hover{color:var(--accent);border-bottom-color:var(--accent)}
.btn-light{background:#fff;color:var(--brand);border-color:#fff}
.btn-light:hover{background:var(--brand-l);color:var(--brand-d);transform:translateY(-1px)}
.btn-sm{padding:10px 18px;font-size:14px}
.btn-cat{background:var(--surface-2);border:1px solid var(--line);color:var(--ink-2);padding:11px 18px;font-size:14px;position:relative}
.btn-cat:hover{border-color:var(--brand);color:var(--brand)}
.btn-cat .fa-chevron-down{font-size:11px;margin-left:2px}
.cat-menu{
  position:absolute;right:24px;top:calc(100% - 10px);
  min-width:220px;background:#fff;border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-2);padding:8px;display:none;z-index:70;
}
.cat-menu.open{display:block}
.cat-menu a{display:block;padding:10px 14px;border-radius:8px;font-size:14px;color:var(--ink-2)}
.cat-menu a:hover{background:var(--brand-l);color:var(--brand)}
.chips-row{
  display:flex;gap:10px;overflow-x:auto;
  max-width:1200px;margin:0 auto;padding:0 24px 14px;
  scrollbar-width:none;
}
.chips-row::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;padding:8px 16px;border-radius:999px;
  border:1px solid var(--line);background:var(--surface-2);
  color:var(--ink-2);font-size:14px;transition:var(--ease);
}
.chip:hover{color:var(--brand);border-color:var(--brand);background:var(--brand-a)}
.chip.active{background:var(--brand);border-color:var(--brand);color:#fff;font-weight:500}
.chip.active:hover{color:#fff}

/* ---------- 通用板块 ---------- */
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-head{max-width:760px;margin-bottom:40px}
.section-head h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px;position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;width:3px;height:.92em;
  background:var(--accent);border-radius:2px;
}
.section-head p{color:var(--ink-2);font-size:16px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:500;letter-spacing:1px;color:var(--accent);
  text-transform:uppercase;margin-bottom:14px;
}
.card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  transition:var(--ease);
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;background:var(--brand-l);
  color:var(--brand);font-size:13px;font-weight:500;
}
.tag-accent{background:#FBF1E9;color:var(--accent)}
.tag-line{background:transparent;border:1px solid var(--line);color:var(--ink-3)}

/* ---------- 页首横幅 ---------- */
.page-banner{
  position:relative;overflow:hidden;
  background:#102A45 url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color:#fff;padding:52px 0 60px;
}
.page-banner::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(16,42,69,.94) 0%,rgba(22,60,107,.86) 52%,rgba(29,78,137,.72) 100%);
}
.page-banner .wrap{position:relative;z-index:1}
.crumb{font-size:14px;color:rgba(255,255,255,.72);margin-bottom:16px}
.crumb a{color:rgba(255,255,255,.72)}
.crumb a:hover{color:#fff}
.crumb span.sep{margin:0 8px;opacity:.6}
.crumb .cur{color:#fff}
.page-banner h1{
  font-size:clamp(30px,4.4vw,46px);
  color:#fff;max-width:900px;margin-bottom:18px;
}
.page-banner .lead{
  max-width:680px;font-size:17px;line-height:1.8;
  color:rgba(255,255,255,.86);margin-bottom:28px;
}
.banner-cta{display:flex;flex-wrap:wrap;gap:14px}
.banner-notes{display:flex;flex-wrap:wrap;gap:22px;margin-top:30px;font-size:14px;color:rgba(255,255,255,.78)}
.banner-notes span{display:inline-flex;align-items:center;gap:8px}
.banner-notes i{color:#E7B48C}

/* ---------- 指标带 ---------- */
.metrics{
  background:#102A45;color:#fff;border-radius:var(--r-card);
  padding:36px 32px;display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  box-shadow:var(--sh-2);
}
.metric{border-left:2px solid rgba(255,255,255,.14);padding-left:20px}
.metric:first-child{border-left:0;padding-left:0}
.metric b{
  display:block;font-size:clamp(28px,3.2vw,36px);font-weight:700;
  color:#F0B98A;line-height:1.2;letter-spacing:-.5px;
}
.metric span{display:block;margin-top:8px;font-size:14px;color:rgba(255,255,255,.76);line-height:1.6}
.metrics-wrap{margin-top:-42px;position:relative;z-index:5}

/* ---------- 时间轴 ---------- */
.timeline{display:grid;gap:20px}
.tl-item{display:grid;grid-template-columns:64px 1fr;gap:22px;align-items:stretch}
.tl-left{display:flex;flex-direction:column;align-items:center}
.tl-dot{
  width:48px;height:48px;border-radius:50%;flex:0 0 auto;
  background:var(--brand);color:#fff;display:grid;place-items:center;
  font-size:17px;font-weight:700;
  box-shadow:0 10px 20px -10px rgba(29,78,137,.75);
}
.tl-line{flex:1 1 auto;width:2px;background:linear-gradient(180deg,var(--brand-l),var(--line));margin-top:10px;min-height:34px}
.tl-item:last-child .tl-line{display:none}
.tl-card{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
  padding:24px;transition:var(--ease);
}
.tl-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D3DEEC}
.tl-card h3{font-size:20px;margin-bottom:10px}
.tl-card>p{color:var(--ink-2);font-size:15px;margin-bottom:16px}
.tl-points{display:grid;gap:8px}
.tl-points li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--ink-2);
}
.tl-points li::before{
  content:"";flex:0 0 auto;width:6px;height:6px;margin-top:9px;
  border-radius:50%;background:var(--accent);
}
.tl-stage{
  display:inline-block;font-size:13px;font-weight:500;
  color:var(--accent);letter-spacing:.5px;margin-bottom:8px;
}

/* ---------- 双列问答 ---------- */
.qa-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.qa-card{
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;transition:var(--ease);
}
.qa-card:hover{border-color:#D3DEEC;background:#fff;box-shadow:var(--sh-1)}
.qa-card h4{font-size:17px;margin-bottom:10px;display:flex;gap:10px;align-items:flex-start}
.qa-card h4 i{color:var(--brand);font-size:14px;margin-top:6px}
.qa-card p{font-size:15px;color:var(--ink-2);margin:0}

/* ---------- 支持渠道 ---------- */
.channels{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:stretch}
.channel-main{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;display:flex;flex-direction:column;
}
.channel-main .cover{aspect-ratio:16/9;overflow:hidden;background:var(--brand-l)}
.channel-main .cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.channel-main:hover .cover img{transform:scale(1.02)}
.channel-main .body{padding:24px;flex:1 1 auto;display:flex;flex-direction:column;gap:12px}
.channel-main h3{font-size:21px}
.channel-main p{color:var(--ink-2);font-size:15px}
.channel-side{display:grid;gap:24px}
.channel-mini{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:22px;display:flex;gap:16px;align-items:flex-start;
  transition:var(--ease);
}
.channel-mini:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.channel-mini .ico{
  flex:0 0 auto;width:44px;height:44px;border-radius:12px;
  background:var(--brand-l);color:var(--brand);
  display:grid;place-items:center;font-size:17px;
}
.channel-mini h4{font-size:17px;margin-bottom:6px}
.channel-mini p{font-size:14.5px;color:var(--ink-2);margin:0}

/* ---------- FAQ ---------- */
.faq-list{
  background:var(--surface-2);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;transition:var(--ease);
}
.faq-item + .faq-item{border-top:1px solid var(--line)}
.faq-q{
  width:100%;background:transparent;border:0;text-align:left;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  cursor:pointer;transition:var(--ease);
}
.faq-q:hover{color:var(--brand)}
.faq-q .faq-ico{
  flex:0 0 auto;width:24px;height:24px;border-radius:50%;
  border:1px solid var(--line);display:grid;place-items:center;
  color:var(--ink-3);font-size:11px;transition:var(--ease);
}
.faq-item.open .faq-ico{transform:rotate(180deg);border-color:var(--brand);color:var(--brand);background:var(--brand-l)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 24px 20px;font-size:15px;line-height:1.85;color:var(--ink-2);margin:0}

/* ---------- CTA 表单 ---------- */
.cta-band{
  background:var(--brand-l);border:1px solid #D8E4F3;border-radius:18px;
  padding:44px;display:grid;grid-template-columns:1fr 1.05fr;gap:44px;align-items:start;
}
.cta-band h2{font-size:clamp(24px,3vw,32px);margin-bottom:14px}
.cta-band .cta-desc{color:var(--ink-2);font-size:16px;margin-bottom:22px}
.cta-points{display:grid;gap:10px}
.cta-points li{display:flex;gap:10px;font-size:15px;color:var(--ink-2)}
.cta-points i{color:var(--accent);font-size:14px;margin-top:6px}
.form-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:26px;
}
.form-row{margin-bottom:18px}
.form-row label{display:block;font-size:14px;font-weight:500;color:var(--ink);margin-bottom:8px}
.form-row .req{color:var(--warn);margin-left:4px}
.form-row input,.form-row textarea{
  width:100%;border:1px solid #D8E1EE;border-radius:var(--r-btn);
  padding:12px 14px;font-size:15px;color:var(--ink);background:var(--surface-2);
  transition:var(--ease);font-family:inherit;
}
.form-row input{height:46px;padding:0 14px}
.form-row textarea{min-height:110px;resize:vertical;line-height:1.7}
.form-row input:focus,.form-row textarea:focus{outline:none;border-color:var(--brand);background:#fff;box-shadow:0 0 0 4px var(--brand-a)}
.form-hint{font-size:13px;color:var(--ink-3);margin-top:8px}
.form-msg{margin-top:14px;font-size:14px;color:var(--brand);display:none}
.form-msg.show{display:block}
.form-submit{margin-top:24px}

/* ---------- 页脚 ---------- */
.site-footer{background:#102A45;color:rgba(255,255,255,.78);padding:64px 0 28px;margin-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand span:last-child{font-size:19px;font-weight:700;color:#fff;letter-spacing:.5px}
.site-footer h4{font-size:16px;color:#fff;margin-bottom:16px}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68)}
.footer-links li{margin-bottom:10px}
.footer-links a,.footer-contact span{font-size:14px;color:rgba(255,255,255,.72)}
.footer-links a:hover{color:#F0B98A}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;margin-bottom:12px;font-size:14px}
.footer-contact i{color:#F0B98A;margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.5);
}
.to-top{
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.16);
  color:rgba(255,255,255,.82);border-radius:999px;padding:9px 18px;font-size:13px;
  cursor:pointer;transition:var(--ease);
}
.to-top:hover{background:var(--brand);border-color:var(--brand);color:#fff}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .metrics{grid-template-columns:repeat(2,1fr);gap:28px}
  .metric:nth-child(3){border-left:0;padding-left:0}
}
@media (max-width:991px){
  .section{padding:64px 0}
  .header-main{flex-wrap:wrap;gap:14px;padding-top:14px;min-height:auto}
  .site-header.scrolled .header-main{min-height:auto;padding-bottom:0}
  .nav-search{order:3;width:100%;max-width:100%;flex:1 1 100%}
  .site-header.scrolled .nav-search{max-width:100%}
  .header-actions{margin-left:auto}
  .channels{grid-template-columns:1fr}
  .cta-band{grid-template-columns:1fr;gap:28px;padding:32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .qa-grid{grid-template-columns:1fr}
  .metrics-wrap{margin-top:-30px}
}
@media (max-width:767px){
  .page-banner{padding:38px 0 46px}
  .page-banner .lead{font-size:16px}
  .section{padding:48px 0}
  .section-head{margin-bottom:28px}
  .tl-item{grid-template-columns:48px 1fr;gap:16px}
  .tl-dot{width:40px;height:40px;font-size:15px}
  .tl-card{padding:20px}
  .metrics{padding:26px 22px;gap:22px}
  .metric b{font-size:28px}
  .cta-band{padding:24px}
  .wrap{padding:0 16px}
  .chips-row{padding:0 16px 12px}
  .cat-menu{right:16px}
}
@media (max-width:575px){
  .section{padding:44px 0}
  .section-head h2{font-size:22px}
  .card,.tl-card,.qa-card,.channel-mini,.form-card{padding:16px}
  .metrics{grid-template-columns:1fr}
  .metric{border-left:0;padding-left:0;padding-top:16px;border-top:1px solid rgba(255,255,255,.12)}
  .metric:first-child{border-top:0;padding-top:0}
  .footer-grid{grid-template-columns:1fr}
  .banner-cta .btn{width:100%}
  .header-actions .btn-ghost{padding:10px 14px;font-size:14px}
}