/* roulang page: index */
:root{
  --brand:#1E5B8E;
  --brand-dark:#143F63;
  --brand-light:#3C82B8;
  --accent:#17A398;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --line:#E4EAF1;
  --line-soft:#E8EEF5;
  --input-line:#D8E1EC;
  --ink:#10233A;
  --ink-2:#55677D;
  --ink-3:#8A99AB;
  --ok:#2E9E6B;
  --warn:#D98A1F;
  --r8:8px; --r12:12px; --r16:16px; --r22:22px;
  --sh1:0 6px 20px -6px rgba(16,35,58,.10);
  --sh2:0 18px 40px -18px rgba(16,35,58,.20);
  --sh3:0 24px 56px -24px rgba(16,35,58,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-2);
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Hiragino Sans GB",sans-serif;
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease),border-color .18s var(--ease)}
a:hover{color:var(--brand-dark)}
button{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:4px}
.wrap{max-width:1240px;margin:0 auto;padding:0 40px;width:100%}
.sec{padding:88px 0}
.sec-tight{padding:64px 0}
.sec-head{max-width:760px;margin-bottom:32px}
.sec-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--accent);text-transform:none;margin-bottom:12px}
.sec-kicker::before{content:"";width:18px;height:2px;background:var(--accent);border-radius:2px}
h1{font-size:clamp(28px,3.6vw,46px);line-height:1.22;font-weight:700}
h2{font-size:clamp(24px,2.6vw,34px);line-height:1.28;font-weight:700}
h3{font-size:clamp(18px,1.6vw,22px);line-height:1.4;font-weight:600}
.lead{font-size:17px;line-height:1.85;color:var(--ink-2);max-width:800px}
.meta{font-size:13.5px;line-height:1.6;color:var(--ink-3)}
.mono-num{font-variant-numeric:tabular-nums}

/* ---------- 顶部提示条 ---------- */
.topbar{background:#EAF3FA;border-bottom:1px solid #DBE8F3}
.topbar-in{display:flex;align-items:center;gap:14px;min-height:44px;font-size:13.5px;color:#3A5468;flex-wrap:wrap}
.topbar-dot{width:7px;height:7px;border-radius:999px;background:var(--accent);flex:none}
.topbar a{font-weight:600;color:var(--brand)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:#fff;border-bottom:1px solid var(--line)}
.site-header.scrolled{box-shadow:0 8px 24px -18px rgba(16,35,58,.35)}
.header-in{display:flex;align-items:center;gap:24px;min-height:70px}
.brand{display:flex;align-items:center;gap:10px;flex:none;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(140deg,var(--brand) 0%,var(--brand-light) 100%);display:flex;align-items:center;justify-content:center;flex:none}
.brand-mark svg{width:20px;height:20px;display:block}
.brand-text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:8px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:10px 12px;border-radius:var(--r8);border:0;background:transparent;
  font-size:15px;font-weight:500;color:var(--ink-2);cursor:pointer;white-space:nowrap;
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.nav-link::after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;background:var(--accent);transform:scaleX(0);transform-origin:left;transition:transform .18s var(--ease);border-radius:2px}
.nav-link:hover{color:var(--brand-dark);background:#F2F7FC}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand-dark);font-weight:600}
.nav-item{position:relative}
.mega{
  position:absolute;top:calc(100% + 10px);right:-40px;width:780px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r16);
  box-shadow:var(--sh3);padding:24px;
  display:grid;grid-template-columns:2fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s;
}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:20px}
.mega-title{font-size:13px;font-weight:700;color:var(--ink);margin-bottom:10px}
.mega-list li+li{margin-top:2px}
.mega-list a{display:block;padding:7px 8px;border-radius:var(--r8);font-size:14px;color:var(--ink-2)}
.mega-list a:hover{background:#F2F7FC;color:var(--brand-dark)}
.mega-card{border:1px solid var(--line-soft);border-radius:var(--r12);overflow:hidden;background:#FBFDFF}
.mega-card .thumb{aspect-ratio:4/3;background:#EEF3F8}
.mega-card .thumb img{width:100%;height:100%;object-fit:cover}
.mega-card .body{padding:14px}
.mega-card h4{font-size:15px;font-weight:600;margin-bottom:6px}
.mega-card p{font-size:13.5px;color:var(--ink-3);line-height:1.65;margin-bottom:8px}
.mega-card a{font-size:14px;font-weight:600}
.header-actions{display:flex;align-items:center;gap:10px;margin-left:auto;flex:none}
.burger{display:none;width:44px;height:44px;border:1px solid var(--input-line);border-radius:var(--r12);background:#fff;align-items:center;justify-content:center;cursor:pointer}
.burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.burger span::before,.burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px}
.burger span::before{top:-6px}
.burger span::after{top:6px}
.nav-cb{position:absolute;opacity:0;pointer-events:none;width:1px;height:1px}
.drawer{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r12);border:1px solid transparent;
  padding:12px 22px;font-size:15px;font-weight:600;cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
  text-align:center;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px -10px rgba(30,91,142,.7)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{background:#0F3151;transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:#CDDAE8}
.btn-ghost:hover{background:#F0F6FB;color:var(--brand-dark);border-color:var(--brand-light)}
.btn-ghost:active{background:#E4EFF8}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px}
.btn-lg{padding:14px 28px;font-size:16px}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none}
.link-more{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:6px;border-bottom:2px solid transparent;padding-bottom:2px}
.link-more:hover{border-bottom-color:var(--accent)}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#FFFFFF 0%,var(--bg) 100%);border-bottom:1px solid var(--line)}
.hero::before{
  content:"";position:absolute;right:-140px;top:-120px;width:620px;height:620px;border-radius:50%;
  background:radial-gradient(circle at center,rgba(60,130,184,.10) 0%,rgba(60,130,184,.04) 42%,transparent 68%);
}
.hero::after{
  content:"";position:absolute;left:-80px;bottom:-160px;width:420px;height:420px;border-radius:50%;
  border:1px solid rgba(30,91,142,.07);
}
.hero-in{position:relative;z-index:2;display:grid;grid-template-columns:55% 45%;gap:48px;align-items:center;padding:76px 0 84px}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 13px;border-radius:999px;font-size:13px;font-weight:600;
  background:#EAF6F4;color:#0E6E66;border:1px solid #CDEAE6;
}
.badge.neutral{background:#F1F6FB;color:var(--brand-dark);border-color:#DAE7F3}
.badge i{width:6px;height:6px;border-radius:999px;background:var(--accent);display:block}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-media{position:relative}
.hero-figure{border-radius:var(--r22);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh2);background:#EEF3F8;aspect-ratio:16/10}
.hero-figure img{width:100%;height:100%;object-fit:cover}
.float-card{
  position:absolute;left:-24px;bottom:-28px;background:#fff;border:1px solid var(--line-soft);
  border-radius:var(--r16);box-shadow:var(--sh2);padding:16px 18px;width:260px;
}
.float-card .fc-row{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:13.5px;color:var(--ink-3)}
.float-card .fc-row+.fc-row{margin-top:8px;padding-top:8px;border-top:1px dashed var(--line)}
.float-card strong{color:var(--ink);font-size:14px;font-weight:600}
.dot-ok{display:inline-block;width:8px;height:8px;border-radius:999px;background:var(--ok);margin-right:6px}

/* ---------- 信任条 ---------- */
.trust{background:#fff;border-bottom:1px solid var(--line)}
.trust-in{display:grid;grid-template-columns:repeat(5,1fr);gap:0;padding:26px 0}
.trust-item{padding:0 22px;border-left:1px solid var(--line)}
.trust-item:first-child{border-left:0;padding-left:0}
.trust-item .num{font-size:22px;font-weight:700;color:var(--brand-dark);line-height:1.3}
.trust-item .txt{font-size:13.5px;color:var(--ink-3);line-height:1.6}

/* ---------- 卡片通用 ---------- */
.card{
  background:var(--surface);border:1px solid var(--line-soft);border-radius:var(--r16);
  box-shadow:var(--sh1);transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
  display:flex;flex-direction:column;height:100%;overflow:hidden;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:#DCE7F1}
.card:hover .card-title{color:var(--brand-dark)}
.card:hover .arrow{transform:translateX(3px)}
.card-body{padding:22px;display:flex;flex-direction:column;gap:12px;flex:1}
.card-title{font-size:18px;font-weight:600;color:var(--ink);line-height:1.5;transition:color .18s var(--ease);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-text{font-size:15px;color:var(--ink-2);line-height:1.8;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13.5px;color:var(--ink-3)}
.tag{display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;font-size:12.5px;font-weight:600;background:#EDF4FA;color:#255F92;border:1px solid #DDEAF6;white-space:nowrap}
.tag.green{background:#EAF6F4;color:#0E6E66;border-color:#CFEAE6}
.arrow{transition:transform .18s var(--ease);display:inline-block;font-weight:700;color:var(--brand)}
.thumb-16-10{aspect-ratio:16/10;background:#EEF3F8;overflow:hidden}
.thumb-16-10 img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.card:hover .thumb-16-10 img{transform:scale(1.03)}

/* ---------- 卖点区 ---------- */
.values{background:var(--bg)}
.values-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:26px}
.v1{grid-column:span 4}
.v2{grid-column:span 8}
.v3{grid-column:span 12}
.v-card{background:#fff;border:1px solid var(--line-soft);border-radius:var(--r16);box-shadow:var(--sh1);padding:28px;height:100%;transition:transform .18s var(--ease),box-shadow .18s var(--ease)}
.v-card:hover{transform:translateY(-3px);box-shadow:var(--sh2)}
.v-num{font-size:13px;font-weight:700;color:var(--brand-light);letter-spacing:.08em}
.v-icon{width:46px;height:46px;border-radius:13px;background:#EAF3FA;display:flex;align-items:center;justify-content:center;margin:14px 0 16px;color:var(--brand)}
.v-icon svg{width:22px;height:22px}
.v-card h3{margin-bottom:10px}
.v-card p{font-size:15px;line-height:1.85}
.v2-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:center;height:100%}
.v2-fig{border-radius:var(--r12);overflow:hidden;border:1px solid var(--line-soft);aspect-ratio:16/10;background:#EEF3F8}
.v2-fig img{width:100%;height:100%;object-fit:cover}
.v3{border:1px solid #C9DEEF;background:linear-gradient(180deg,#FFFFFF 0%,#F7FBFE 100%)}
.v3-inner{display:grid;grid-template-columns:1fr 1fr 1fr;gap:26px}
.v3-item{padding-left:18px;border-left:2px solid #DCEAF5}
.v3-item h4{font-size:16px;font-weight:600;color:var(--ink);margin-bottom:6px}
.v3-item p{font-size:14.5px;line-height:1.8}

/* ---------- 场景步骤 ---------- */
.steps{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.steps-in{display:grid;grid-template-columns:46% 54%;gap:44px;align-items:center}
.steps-fig{border-radius:var(--r16);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh1);aspect-ratio:16/10;background:#EEF3F8}
.steps-fig img{width:100%;height:100%;object-fit:cover}
.step-track{display:grid;grid-template-columns:repeat(3,1fr);gap:16px;margin-top:28px}
.step{position:relative;padding-top:20px;border-top:2px solid var(--line)}
.step::before{content:"";position:absolute;top:-6px;left:0;width:10px;height:10px;border-radius:999px;background:var(--accent)}
.step-no{font-size:13px;font-weight:700;color:var(--brand-light);letter-spacing:.08em}
.step h4{font-size:16px;font-weight:600;color:var(--ink);margin:6px 0 6px}
.step p{font-size:14.5px;line-height:1.75;color:var(--ink-2)}

/* ---------- 社会认同 ---------- */
.proof{background:var(--bg)}
.proof-wrap{max-width:900px;margin:0 auto}
.quote{background:#fff;border:1px solid var(--line-soft);border-left:3px solid var(--accent);border-radius:var(--r12);padding:22px 26px;box-shadow:var(--sh1)}
.quote+.quote{margin-top:18px}
.quote p{font-size:15.5px;line-height:1.9;color:var(--ink-2)}
.quote .who{margin-top:12px;font-size:13.5px;color:var(--ink-3)}
.media-row{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;margin-top:34px}
.media-chip{font-size:13.5px;font-weight:600;color:#7E8FA2;background:#EFF4F9;border:1px solid var(--line);border-radius:999px;padding:8px 18px}

/* ---------- CMS 列表 ---------- */
.news{background:#fff;border-top:1px solid var(--line)}
.news-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:32px}
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.empty-state{border:1px dashed var(--input-line);border-radius:var(--r16);padding:56px 24px;text-align:center;background:#FBFDFF}
.empty-state .ico{width:52px;height:52px;border-radius:14px;background:#EFF4F9;display:flex;align-items:center;justify-content:center;margin:0 auto 14px;color:var(--ink-3)}
.empty-state p{font-size:15px;color:var(--ink-3);margin-bottom:10px}

/* ---------- FAQ ---------- */
.faq{background:var(--bg)}
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:#fff;border:1px solid var(--line-soft);border-radius:var(--r12);box-shadow:var(--sh1);overflow:hidden}
.faq-item+.faq-item{margin-top:14px}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);
  transition:background-color .18s var(--ease);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{background:#F7FBFE}
.faq-arrow{flex:none;width:26px;height:26px;border-radius:999px;background:#EFF4F9;display:flex;align-items:center;justify-content:center;transition:transform .18s var(--ease),background-color .18s var(--ease)}
.faq-arrow svg{width:13px;height:13px;color:var(--brand)}
.faq-item[open] .faq-arrow{transform:rotate(90deg);background:#E2F0EE}
.faq-body{padding:0 24px 22px;font-size:15.5px;line-height:1.85;color:var(--ink-2);border-top:1px solid var(--line);padding-top:18px;margin:0 24px 22px;padding-left:0;padding-right:0}

/* ---------- CTA ---------- */
.cta-band{background:linear-gradient(135deg,var(--brand-dark) 0%,var(--brand) 62%,#256B99 100%);color:#fff;position:relative;overflow:hidden}
.cta-band::after{content:"";position:absolute;right:-120px;top:-120px;width:460px;height:460px;border-radius:50%;border:1px solid rgba(255,255,255,.16)}
.cta-in{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;padding:60px 0;flex-wrap:wrap}
.cta-in h2{color:#fff;margin-bottom:10px}
.cta-in p{color:rgba(255,255,255,.82);font-size:16px;max-width:620px;line-height:1.8}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.btn-white{background:#fff;color:var(--brand-dark)}
.btn-white:hover{background:#EAF3FA;color:var(--brand-dark);transform:translateY(-1px)}
.btn-outline-w{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-outline-w:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F2438;color:#A9BACB;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:17px;font-weight:700;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(140deg,#2C6E9F 0%,#3C82B8 100%)}
.site-footer p{font-size:14.5px;line-height:1.9;color:#95A8BB}
.footer-h{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:.02em}
.footer-list li+li{margin-top:9px}
.footer-list a{font-size:14.5px;color:#A9BACB}
.footer-list a:hover{color:#fff}
.footer-bottom{margin-top:52px;border-top:1px solid rgba(255,255,255,.10);padding:20px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13.5px;color:#8397AB}
.footer-bottom a{color:#B6C6D6}
.footer-bottom a:hover{color:#fff}

/* ---------- 移动端底栏 ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -16px rgba(16,35,58,.4);
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:10px 18px calc(10px + env(safe-area-inset-bottom));
}
.mobile-bar .mb-text{font-size:13px;line-height:1.4;color:var(--ink-2)}
.mobile-bar .mb-text strong{display:block;color:var(--ink);font-size:13.5px;font-weight:600}

/* ---------- 响应式 ---------- */
@media (max-width:1100px){
  .hero-in{grid-template-columns:1fr;gap:40px;padding:56px 0 64px}
  .float-card{left:auto;right:16px;bottom:-20px;width:236px}
  .trust-in{grid-template-columns:repeat(3,1fr);row-gap:20px}
  .trust-item:nth-child(4){border-left:0;padding-left:0}
  .values-grid .v1,.values-grid .v2{grid-column:span 12}
  .v2-inner{grid-template-columns:1fr;gap:22px}
  .v3-inner{grid-template-columns:1fr}
  .steps-in{grid-template-columns:1fr;gap:32px}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .wrap{padding:0 32px}
  .main-nav{display:none}
  .header-actions{display:none}
  .burger{display:flex}
  .drawer{
    display:block;position:absolute;left:0;right:0;top:100%;background:#fff;border-bottom:1px solid var(--line);
    box-shadow:var(--sh2);max-height:0;overflow:hidden;transition:max-height .24s var(--ease);
  }
  .nav-cb:checked ~ .drawer{max-height:520px;overflow:auto}
  .drawer-in{padding:14px 32px 22px;display:flex;flex-direction:column;gap:4px}
  .drawer a,.drawer .d-group{display:flex;align-items:center;min-height:46px;font-size:15.5px;color:var(--ink-2);border-bottom:1px solid var(--line-soft)}
  .drawer a:hover{color:var(--brand-dark)}
  .drawer a.active{color:var(--brand-dark);font-weight:600}
  .drawer .d-label{font-size:12.5px;font-weight:700;color:var(--ink-3);letter-spacing:.06em;margin:14px 0 2px}
  .drawer .d-cta{margin-top:16px;border-bottom:0}
  .sec{padding:64px 0}
  .step-track{grid-template-columns:1fr;gap:22px}
  .brand-text{font-size:16px}
}
@media (max-width:640px){
  .wrap{padding:0 20px}
  body{font-size:16px}
  .sec{padding:52px 0}
  .hero-in{padding:44px 0 56px}
  .float-card{position:static;width:100%;margin-top:16px}
  .hero-cta .btn{flex:1 1 100%}
  .trust-in{grid-template-columns:1fr 1fr;padding:20px 0}
  .trust-item{padding:0 14px}
  .trust-item:nth-child(3),.trust-item:nth-child(5){border-left:0;padding-left:0}
  .news-grid{grid-template-columns:1fr}
  .news-head{flex-direction:column;align-items:flex-start;gap:10px}
  .cta-in{padding:52px 0;flex-direction:column;align-items:flex-start}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 100%}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .mobile-bar{padding:10px 16px calc(10px + env(safe-area-inset-bottom))}
  .site-footer{padding-bottom:78px}
  .faq-item summary{padding:16px 18px;font-size:15.5px}
  .faq-body{margin:0 18px 18px}
  .v-card{padding:22px}
}
@media (min-width:769px){
  .mobile-bar{opacity:0;pointer-events:none;transform:translateY(100%);transition:opacity .24s var(--ease),transform .24s var(--ease)}
  .mobile-bar.show{opacity:1;pointer-events:auto;transform:translateY(0)}
}

/* roulang page: article */
:root{
  --brand:#1E5B8E;
  --brand-dark:#143F63;
  --brand-light:#3C82B8;
  --accent:#17A398;
  --bg:#F5F8FB;
  --card:#FFFFFF;
  --line:#E4EAF1;
  --line-soft:#E8EEF5;
  --input-border:#D8E1EC;
  --t1:#10233A;
  --t2:#55677D;
  --t3:#8A99AB;
  --ok:#2E9E6B;
  --warn:#D98A1F;
  --r8:8px; --r12:12px; --r16:16px; --r22:22px;
  --sh1:0 6px 20px -6px rgba(16,35,58,.10);
  --sh2:0 18px 40px -18px rgba(16,35,58,.20);
  --sh3:0 24px 56px -24px rgba(16,35,58,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  background:var(--bg);
  color:var(--t2);
  font-size:17px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--t1);font-weight:700}
p{margin:0}
:focus-visible{outline:2px solid var(--brand-light);outline-offset:2px;border-radius:6px}

/* ============ 容器 ============ */
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 40px}
.read-col{max-width:860px;margin:0 auto;width:100%}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:10px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;line-height:1.2;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 8px 18px -10px rgba(30,91,142,.75)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px)}
.btn-primary:active{background:#0F3150;transform:translateY(0)}
.btn-ghost{background:#fff;color:var(--brand);border-color:#CDDAE8}
.btn-ghost:hover{background:#F0F6FB;border-color:var(--brand-light);transform:translateY(-1px)}
.btn-ghost:active{background:#E4EFF8;transform:translateY(0)}
.btn-sm{padding:9px 16px;font-size:14px;border-radius:10px}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}
.link-text{color:var(--brand);font-weight:600;border-bottom:2px solid transparent;transition:border-color .18s var(--ease),color .18s var(--ease)}
.link-text:hover{border-color:var(--accent);color:var(--brand-dark)}
.link-text .arrow{display:inline-block;transition:transform .18s var(--ease);margin-left:2px}
.link-text:hover .arrow{transform:translateX(3px)}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:13px;font-weight:600;
  background:#E8F2F9;color:var(--brand-dark);
}
.badge-accent{background:#E3F5F3;color:#0F7C74}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;background:#fff;
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s var(--ease);
}
.site-header:hover{box-shadow:0 6px 20px -16px rgba(16,35,58,.35)}
.header-inner{
  max-width:1240px;margin:0 auto;padding:0 40px;height:72px;
  display:flex;align-items:center;gap:20px;
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;font-weight:700;color:var(--t1);font-size:17px;letter-spacing:.01em}
.brand-mark{width:36px;height:36px;border-radius:10px;background:var(--brand);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.brand-mark svg{width:20px;height:20px}
.main-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:72px;
  padding:0 14px;font-size:15px;color:var(--t2);background:none;border:0;cursor:pointer;
  white-space:nowrap;transition:color .18s var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:0;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .18s var(--ease);
}
.nav-link:hover{color:var(--brand)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-item{position:relative}
.mega{
  position:absolute;top:100%;right:0;width:min(840px,calc(100vw - 80px));
  background:#fff;border:1px solid var(--line);border-radius:var(--r16);
  box-shadow:var(--sh3);padding:26px 28px;
  display:grid;grid-template-columns:2fr 1fr;gap:26px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s var(--ease);
}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.mega-title{font-size:13px;font-weight:700;color:var(--t1);letter-spacing:.04em;margin-bottom:12px;padding-bottom:10px;border-bottom:1px solid var(--line)}
.mega-list li{margin-bottom:2px}
.mega-list a{display:block;padding:7px 8px;border-radius:var(--r8);font-size:14px;color:var(--t2);transition:background-color .18s var(--ease),color .18s var(--ease)}
.mega-list a:hover{background:#F0F6FB;color:var(--brand);}
.mega-card{border:1px solid var(--line-soft);border-radius:var(--r12);overflow:hidden;background:#FBFDFE;display:flex;flex-direction:column}
.mega-card .thumb{aspect-ratio:16/10;background:#EEF3F8;overflow:hidden}
.mega-card .thumb img{width:100%;height:100%;object-fit:cover}
.mega-card .body{padding:14px 16px 16px}
.mega-card h4{font-size:15px;font-weight:600;margin-bottom:6px}
.mega-card p{font-size:13px;line-height:1.65;color:var(--t2);margin-bottom:10px}
.mega-card a{font-size:13px;color:var(--brand);font-weight:600}
.header-cta{flex:0 0 auto}

/* ============ 面包屑 ============ */
.crumb{padding:22px 0 4px;font-size:14px;color:var(--t3)}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb li{display:flex;align-items:center;gap:8px}
.crumb li+li::before{content:"/";color:#C3CEDB}
.crumb a{color:var(--t3);transition:color .18s var(--ease)}
.crumb a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.crumb li[aria-current]{color:var(--t2);max-width:46ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ============ 文章头 ============ */
.article-head{padding:26px 0 6px}
.article-head h1{
  font-size:clamp(28px,3.4vw,42px);line-height:1.25;font-weight:700;
  color:var(--t1);margin:16px 0 20px;letter-spacing:-.01em;
}
.post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--t3)}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3CEDB}

/* ============ 正文 ============ */
.post-shell{padding:28px 0 8px}
.post-body{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--r16);
  box-shadow:var(--sh1);padding:44px 48px;
}
.post-body > *:first-child{margin-top:0}
.post-body p{margin:0 0 20px;font-size:17px;line-height:1.85;color:#3C4D63}
.post-body h2{
  font-size:clamp(22px,2.4vw,28px);line-height:1.32;font-weight:700;color:var(--t1);
  margin:42px 0 16px;padding-left:14px;border-left:4px solid var(--brand);
}
.post-body h3{font-size:20px;line-height:1.45;font-weight:600;color:var(--t1);margin:30px 0 12px}
.post-body h4{font-size:17px;font-weight:600;color:var(--t1);margin:24px 0 10px}
.post-body ul,.post-body ol{margin:0 0 22px;padding-left:22px;color:#3C4D63}
.post-body ul li{list-style:disc;margin-bottom:8px;line-height:1.8}
.post-body ol li{list-style:decimal;margin-bottom:8px;line-height:1.8}
.post-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.post-body a:hover{color:var(--brand-dark)}
.post-body strong{color:var(--t1);font-weight:600}
.post-body blockquote{
  margin:24px 0;padding:18px 22px;background:#F2F7FB;
  border-left:4px solid var(--accent);border-radius:0 var(--r12) var(--r12) 0;
  color:var(--brand-dark);
}
.post-body blockquote p:last-child{margin-bottom:0}
.post-body img{border-radius:var(--r12);margin:22px auto;box-shadow:var(--sh1)}
.post-body figure{margin:24px 0}
.post-body figcaption{font-size:13px;color:var(--t3);text-align:center;margin-top:10px}
.post-body table{
  width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;
  border:1px solid var(--line);border-radius:var(--r12);overflow:hidden;
}
.post-body th{background:#F2F7FB;color:var(--t1);text-align:left;font-weight:600}
.post-body th,.post-body td{padding:12px 14px;border-bottom:1px solid var(--line);line-height:1.7}
.post-body tr:last-child td{border-bottom:0}
.post-body code{
  background:#F2F7FB;border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:14px;color:var(--brand-dark);
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.post-body pre{
  background:#F2F7FB;border:1px solid var(--line);border-radius:var(--r12);
  padding:18px 20px;overflow:auto;margin:22px 0;
}
.post-body pre code{background:none;border:0;padding:0}
.post-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

.post-empty{
  max-width:620px;margin:8px auto;text-align:center;padding:36px 20px;
}
.post-empty .icon{
  width:64px;height:64px;margin:0 auto 18px;border-radius:var(--r16);
  background:#EEF3F8;display:flex;align-items:center;justify-content:center;
}
.post-empty .icon svg{width:28px;height:28px;stroke:#8A99AB}
.post-empty h2{font-size:22px;margin-bottom:12px;border:0;padding:0}
.post-empty p{font-size:16px;color:var(--t2);margin-bottom:22px}

/* ============ 标签行 ============ */
.tag-row{display:flex;flex-wrap:wrap;gap:10px;margin-top:30px;align-items:center}
.tag-row .tag-label{font-size:13px;color:var(--t3);margin-right:2px}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  background:#fff;border:1px solid var(--line);font-size:13px;color:var(--t2);
  transition:border-color .18s var(--ease),color .18s var(--ease),background-color .18s var(--ease);
}
.tag:hover{border-color:var(--brand-light);color:var(--brand);background:#F7FBFE}

/* ============ 返回行 ============ */
.back-row{
  margin-top:28px;padding:18px 22px;background:#fff;border:1px solid var(--line-soft);
  border-radius:var(--r12);box-shadow:var(--sh1);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.back-row .tip{font-size:14px;color:var(--t2)}

/* ============ 板块标题 ============ */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:30px;flex-wrap:wrap}
.section-head h2{font-size:clamp(22px,2.4vw,30px);line-height:1.3}
.section-head p{font-size:15px;color:var(--t3);margin-top:8px}
.section-head .more{font-size:14px;font-weight:600;color:var(--brand)}
.section-head .more:hover{text-decoration:underline;text-underline-offset:3px}

/* ============ 相关推荐卡片 ============ */
.related{padding:64px 0 8px}
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line-soft);
  border-radius:var(--r16);box-shadow:var(--sh1);overflow:hidden;
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:#DCE6EF}
.card .thumb{aspect-ratio:16/10;background:#EEF3F8;overflow:hidden}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .18s var(--ease)}
.card:hover .thumb img{transform:scale(1.02)}
.card .card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.card h3{
  font-size:18px;line-height:1.45;font-weight:600;color:var(--t1);margin:12px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s var(--ease);
}
.card:hover h3{color:var(--brand-dark)}
.card .excerpt{
  font-size:15px;line-height:1.75;color:var(--t2);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card .card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--t3);
}
.card .card-foot .go{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.card .card-foot .go .arrow{transition:transform .18s var(--ease)}
.card:hover .card-foot .go .arrow{transform:translateX(3px)}

/* ============ CTA 通栏 ============ */
.cta-wrap{padding:64px 0 72px}
.cta-band{
  background:var(--brand-dark);border-radius:var(--r22);
  padding:48px 56px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.cta-band h2{color:#fff;font-size:clamp(22px,2.4vw,30px);line-height:1.32;margin-bottom:12px}
.cta-band p{color:#B9CBDC;font-size:16px;max-width:56ch;line-height:1.8}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-primary{background:#fff;color:var(--brand-dark);box-shadow:none}
.cta-band .btn-primary:hover{background:#E6F0F8}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:#10233A;color:#A9B7C6;padding:56px 0 26px;margin-top:8px}
.wrap{max-width:1240px;margin:0 auto;padding:0 40px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;margin-bottom:16px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:10px;background:var(--brand);display:flex;align-items:center;justify-content:center;flex:0 0 auto}
.footer-brand .brand-mark svg{width:19px;height:19px}
.site-footer p{font-size:14px;line-height:1.85;color:#95A6B8;max-width:42ch}
.footer-h{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid rgba(255,255,255,.10)}
.footer-list li{margin-bottom:9px}
.footer-list a{font-size:14px;color:#95A6B8;transition:color .18s var(--ease),padding-left .18s var(--ease)}
.footer-list a:hover{color:#fff;padding-left:3px}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#7F91A5;
}
.footer-bottom a{color:#A9B7C6}
.footer-bottom a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}

/* ============ 移动端底部转化条 ============ */
.mobile-cta{
  position:fixed;left:0;right:0;bottom:0;z-index:70;background:#fff;
  border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -14px rgba(16,35,58,.35);
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  display:flex;align-items:center;justify-content:space-between;gap:12px;
}
.mobile-cta .hint{font-size:13px;line-height:1.5;color:var(--t2)}
.mobile-cta .hint strong{display:block;color:var(--t1);font-size:14px}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .header-inner,.container,.wrap{padding-left:32px;padding-right:32px}
}
@media (max-width:1023px){
  .header-inner{height:auto;flex-wrap:wrap;padding:12px 32px 0;gap:12px}
  .brand{font-size:16px}
  .main-nav{
    order:3;margin-left:0;width:100%;overflow-x:auto;gap:0;
    border-top:1px solid var(--line);padding:2px 0 0;
    -webkit-overflow-scrolling:touch;
  }
  .nav-link{height:46px;padding:0 12px;font-size:14px}
  .nav-link::after{left:12px;right:12px}
  .nav-item .mega{display:none}
  .header-cta{margin-left:auto}
  .card-grid{grid-template-columns:repeat(2,1fr);gap:22px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .post-body{padding:36px 32px}
  .cta-band{padding:38px 32px}
}
@media (max-width:767px){
  body{font-size:16px;padding-bottom:76px}
  .header-inner,.container,.wrap{padding-left:20px;padding-right:20px}
  .header-inner{padding-top:10px}
  .header-cta{display:none}
  .brand{font-size:15px}
  .article-head{padding:18px 0 0}
  .article-head h1{margin:14px 0 16px}
  .crumb{padding-top:16px}
  .crumb li[aria-current]{max-width:100%;white-space:normal;overflow:visible}
  .post-body{padding:26px 20px;border-radius:var(--r12)}
  .post-body p{font-size:16px;line-height:1.85}
  .post-body h2{margin:32px 0 14px;padding-left:11px;border-left-width:3px}
  .related{padding:48px 0 4px}
  .card-grid{grid-template-columns:1fr;gap:20px}
  .cta-wrap{padding:48px 0 56px}
  .cta-band{padding:32px 24px;border-radius:var(--r16)}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .back-row{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .section-head{margin-bottom:22px}
  .post-body h3{font-size:18px}
}
@media (min-width:768px){
  .mobile-cta{display:none}
}

/* roulang page: category1 */
:root{
  --brand:#1E5B8E;
  --brand-dark:#143F63;
  --brand-light:#3C82B8;
  --accent:#17A398;
  --bg:#F5F8FB;
  --surface:#FFFFFF;
  --line:#E4EAF1;
  --card-line:#E8EEF5;
  --input-line:#D8E1EC;
  --ink:#10233A;
  --text:#55677D;
  --meta:#8A99AB;
  --ok:#2E9E6B;
  --warn:#D98A1F;
  --r8:8px;
  --r12:12px;
  --r16:16px;
  --r22:22px;
  --sh1:0 6px 20px -6px rgba(16,35,58,.10);
  --sh2:0 18px 40px -18px rgba(16,35,58,.20);
  --sh3:0 24px 56px -24px rgba(16,35,58,.28);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  font-size:16.5px;
  line-height:1.8;
  font-weight:400;
  letter-spacing:.1px;
}
img{max-width:100%;display:block;border:0}
a{color:var(--brand);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--brand-dark);text-decoration:underline;text-underline-offset:3px}
button{font:inherit;color:inherit;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;letter-spacing:0}
p{margin:0}
:focus-visible{outline:2px solid var(--brand-light);outline-offset:3px;border-radius:6px}

.wrap{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:768px){.wrap{padding-left:32px;padding-right:32px}}
@media (min-width:1024px){.wrap{padding-left:40px;padding-right:40px}}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(16,35,58,.02);
}
.header-inner{display:flex;align-items:center;gap:18px;height:70px}
.nav-toggle-input{position:absolute;width:1px;height:1px;opacity:0;pointer-events:none}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;color:var(--ink);
  white-space:nowrap;
}
.logo:hover{text-decoration:none;color:var(--brand-dark)}
.brand-mark{
  width:34px;height:34px;border-radius:11px;flex:0 0 auto;
  background:linear-gradient(140deg,var(--brand-light),var(--brand));
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 8px 18px -10px rgba(30,91,142,.85);
}
.brand-mark svg{width:19px;height:19px}
.main-nav{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-item{position:relative;display:flex;align-items:center;height:70px}
.nav-link{
  position:relative;
  display:inline-flex;align-items:center;
  height:40px;padding:0 14px;
  border:0;background:none;border-radius:10px;
  color:var(--ink);font-size:15.5px;
  transition:color .18s var(--ease),background-color .18s var(--ease);
}
.nav-link:hover{background:#F0F6FB;color:var(--brand-dark);text-decoration:none}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .18s var(--ease);
}
.nav-link:hover::after,.nav-link.active::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand-dark);font-weight:600;background:#F0F6FB}
.nav-item::after{content:"";position:absolute;left:0;right:0;top:100%;height:14px}

.mega{
  position:absolute;top:calc(100% + 12px);right:0;
  width:840px;max-width:calc(100vw - 48px);
  display:grid;grid-template-columns:2fr 1fr;gap:26px;
  padding:26px;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r16);
  box-shadow:var(--sh3);
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .18s var(--ease),transform .18s var(--ease),visibility .18s var(--ease);
}
.nav-item:hover .mega,.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.mega-title{
  font-size:13px;font-weight:700;color:var(--brand-dark);
  letter-spacing:.6px;margin-bottom:12px;
  padding-bottom:10px;border-bottom:1px solid var(--line);
}
.mega-list li{margin-bottom:4px}
.mega-list a{
  display:block;padding:6px 0;font-size:14.5px;color:var(--text);
  transition:color .18s var(--ease),padding-left .18s var(--ease);
}
.mega-list a:hover{color:var(--brand);text-decoration:none;padding-left:6px}
.mega-card{
  background:#F7FAFD;border:1px solid var(--line);border-radius:var(--r12);
  padding:14px;display:flex;flex-direction:column;gap:12px;
}
.mega-card .thumb{
  aspect-ratio:16/10;border-radius:var(--r8);overflow:hidden;background:#EEF3F8;
}
.mega-card .thumb img{width:100%;height:100%;object-fit:cover}
.mega-card h4{font-size:15.5px;font-weight:700;color:var(--ink)}
.mega-card p{font-size:13.5px;line-height:1.7;color:var(--meta)}
.mega-card a{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:5px}
.mega-card .arrow{transition:transform .18s var(--ease);display:inline-block}
.mega-card a:hover .arrow{transform:translateX(3px)}

.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:12px;
  border:1px solid var(--input-line);background:#fff;
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;position:relative}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--ink);border-radius:2px;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}

@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:fixed;top:70px;left:0;right:0;bottom:0;
    margin-left:0;
    flex-direction:column;align-items:stretch;gap:2px;
    padding:16px 20px 48px;
    background:#fff;overflow-y:auto;
    transform:translateX(102%);
    transition:transform .22s var(--ease);
    box-shadow:var(--sh3);
  }
  .nav-toggle-input:checked ~ .main-nav{transform:translateX(0)}
  .nav-link{height:48px;padding:0 12px;font-size:16px;justify-content:flex-start}
  .nav-link::after{display:none}
  .nav-item{display:block;height:auto}
  .nav-item::after{display:none}
  .mega-trigger{width:100%;justify-content:space-between}
  .mega{
    position:static;width:auto;max-width:none;
    opacity:1;visibility:visible;transform:none;
    box-shadow:none;border:0;border-left:2px solid var(--line);
    border-radius:0;padding:6px 0 10px 14px;margin:0 0 8px 12px;
    grid-template-columns:1fr;gap:16px;
  }
  .mega-cols{grid-template-columns:1fr;gap:14px}
  .mega-card{display:none}
}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:10px;
  font-size:15.5px;font-weight:600;
  border:1px solid transparent;
  text-decoration:none;cursor:pointer;
  transition:background-color .18s var(--ease),color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease),box-shadow .18s var(--ease);
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 12px 24px -14px rgba(30,91,142,.9)}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px)}
.btn-primary:active{background:#0F2F4A;transform:translateY(0)}
.btn-ghost{background:#fff;border-color:#CDDAE8;color:var(--brand)}
.btn-ghost:hover{background:#F0F6FB;border-color:var(--brand-light);color:var(--brand-dark);transform:translateY(-1px)}
.btn-ghost:active{background:#E4EEF7;transform:translateY(0)}
.btn-light{background:#fff;color:var(--brand-dark);border-color:#fff}
.btn-light:hover{background:#EAF2F9;color:var(--brand-dark);transform:translateY(-1px)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.btn-outline-light:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:14.5px;border-radius:10px}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;pointer-events:none}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--brand);font-weight:600;font-size:15px;
  border-bottom:2px solid transparent;padding-bottom:2px;
}
.btn-text:hover{color:var(--brand-dark);text-decoration:none;border-bottom-color:var(--accent)}

/* ---------- Badges / Pills ---------- */
.pill{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 14px;border-radius:999px;
  background:#E9F4F2;color:#0F7A72;
  font-size:13px;font-weight:600;letter-spacing:.3px;
}
.pill::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--accent)}
.eyebrow{
  display:inline-block;margin-bottom:14px;
  font-size:13px;font-weight:700;letter-spacing:1.2px;color:var(--brand-light);
}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:999px;
  background:#EAF2F9;color:var(--brand-dark);
  font-size:12.5px;font-weight:600;
}
.badge-teal{background:#E7F5F3;color:#0F7A72}
.badge-gray{background:#F1F4F8;color:var(--meta)}

/* ---------- Page Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#FFFFFF 0%,#F5F8FB 100%);
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;right:-160px;top:-180px;
  width:560px;height:560px;border-radius:50%;
  border:1px solid rgba(30,91,142,.10);
  box-shadow:0 0 0 64px rgba(30,91,142,.035),0 0 0 128px rgba(30,91,142,.02);
  pointer-events:none;
}
.crumb{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  padding:22px 0 4px;font-size:13.5px;color:var(--meta);
}
.crumb a{color:var(--meta)}
.crumb a:hover{color:var(--brand)}
.crumb span[aria-current]{color:var(--ink);font-weight:600}
.hero-grid{
  position:relative;
  display:grid;grid-template-columns:1.12fr .88fr;gap:52px;align-items:center;
  padding:26px 0 40px;
}
.hero-grid h1{
  font-size:clamp(27px,3.4vw,42px);
  line-height:1.24;margin:16px 0 18px;
}
.hero-lede{font-size:17px;line-height:1.85;color:var(--text);max-width:640px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-visual{position:relative}
.hero-visual .frame{
  aspect-ratio:16/11;border-radius:var(--r16);overflow:hidden;
  background:#EEF3F8;border:1px solid var(--line);box-shadow:var(--sh2);
}
.hero-visual .frame img{width:100%;height:100%;object-fit:cover}
.float-card{
  position:absolute;left:-18px;bottom:-20px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r16);
  box-shadow:var(--sh3);padding:16px 18px;min-width:200px;
}
.float-card .fc-label{font-size:12.5px;color:var(--meta);letter-spacing:.4px}
.float-card .fc-value{display:flex;align-items:center;gap:8px;font-size:16px;font-weight:700;color:var(--ink);margin-top:6px}
.dot-ok{width:8px;height:8px;border-radius:50%;background:var(--ok);box-shadow:0 0 0 4px rgba(46,158,107,.16)}

.status-strip{
  position:relative;
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
  padding:22px 0 30px;gap:20px;
}
.status-item .si-k{font-size:13px;color:var(--meta);letter-spacing:.4px}
.status-item .si-v{font-size:17px;font-weight:700;color:var(--ink);margin-top:4px}
.status-item .si-v small{font-size:13px;font-weight:500;color:var(--meta);margin-left:6px}

/* ---------- Section basics ---------- */
.section{padding:84px 0}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:780px;margin-bottom:34px}
.section-head h2{font-size:clamp(23px,2.4vw,32px);line-height:1.26;margin-bottom:14px}
.section-head p{font-size:16.5px;line-height:1.85}
.section-top{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:34px}
.section-top .section-head{margin-bottom:0}

/* ---------- Split (left narrow / right wide) ---------- */
.split{display:grid;grid-template-columns:330px 1fr;gap:56px;align-items:start}
.split-side h2{font-size:clamp(22px,2.2vw,28px);line-height:1.3;margin-bottom:14px}
.split-side p{font-size:15.5px;line-height:1.85}
.side-figure{margin-top:24px;border-radius:var(--r16);overflow:hidden;border:1px solid var(--line);background:#EEF3F8;box-shadow:var(--sh1)}
.side-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.side-figure figcaption{font-size:12.5px;color:var(--meta);padding:10px 14px;background:#fff;border-top:1px solid var(--line)}
.steps{display:grid;gap:18px}
.step{
  display:grid;grid-template-columns:60px 1fr;gap:20px;
  background:#fff;border:1px solid var(--card-line);border-radius:var(--r16);
  padding:24px 26px;box-shadow:var(--sh1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.step:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:#D9E5F0}
.step-num{
  font-size:20px;font-weight:700;color:var(--brand-light);
  line-height:1.3;letter-spacing:.5px;
  border-right:1px solid var(--line);padding-right:16px;
}
.step h3{font-size:18px;font-weight:600;margin-bottom:8px}
.step p{font-size:15.5px;line-height:1.82}
.step-meta{margin-top:12px;display:flex;gap:8px;flex-wrap:wrap}

/* ---------- Card grid ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:26px}
.card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--card-line);border-radius:var(--r16);
  overflow:hidden;box-shadow:var(--sh1);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.card:hover{transform:translateY(-3px);box-shadow:var(--sh2);border-color:#D9E5F0}
.card:hover .card-title{color:var(--brand-dark)}
.card:hover .card-link .arrow{transform:translateX(3px)}
.card .thumb{aspect-ratio:16/10;background:#EEF3F8;overflow:hidden}
.card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .18s var(--ease)}
.card:hover .thumb img{transform:scale(1.02)}
.card .body{padding:20px 22px 0;flex:1}
.card-title{
  font-size:17.5px;font-weight:600;line-height:1.5;margin:12px 0 10px;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s var(--ease);
}
.card-text{
  font-size:15px;line-height:1.8;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:18px;padding:14px 22px;border-top:1px solid var(--line);
}
.card-meta{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--meta)}
.card-link{font-size:14px;font-weight:600;display:inline-flex;align-items:center;gap:5px}
.card-link .arrow{display:inline-block;transition:transform .18s var(--ease)}

/* ---------- Compare table ---------- */
.compare{
  background:#fff;border:1px solid var(--line);border-radius:var(--r22);
  overflow:hidden;box-shadow:var(--sh1);
}
.compare-head,.compare-row{display:grid;grid-template-columns:1.1fr 1fr 1fr}
.compare-head{background:#F0F6FB;border-bottom:1px solid var(--line)}
.compare-head div{padding:18px 24px;font-size:14.5px;font-weight:700;color:var(--brand-dark);letter-spacing:.3px}
.compare-row{border-top:1px solid var(--line)}
.compare-row:first-of-type{border-top:0}
.compare-row > div{padding:20px 24px;font-size:15px;line-height:1.8}
.compare-row .c-key{font-weight:600;color:var(--ink);background:#FBFDFF}
.compare-row .c-cell{color:var(--text);border-left:1px solid var(--line)}
.compare-row .c-cell strong{color:var(--ink);font-weight:600}

/* ---------- FAQ ---------- */
.faq{max-width:860px;margin:0 auto;display:grid;gap:14px}
.faq details{
  background:#fff;border:1px solid var(--card-line);border-radius:14px;
  box-shadow:var(--sh1);overflow:hidden;
  transition:box-shadow .18s var(--ease),border-color .18s var(--ease);
}
.faq details:hover{box-shadow:var(--sh2);border-color:#D9E5F0}
.faq summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 24px;
  font-size:16.5px;font-weight:600;color:var(--ink);
}
.faq summary::-webkit-details-marker{display:none}
.faq .chev{
  flex:0 0 auto;width:22px;height:22px;
  color:var(--brand);transition:transform .18s var(--ease);
}
.faq details[open] .chev{transform:rotate(90deg)}
.faq .ans{
  padding:0 24px 22px;font-size:15.5px;line-height:1.85;color:var(--text);
  border-top:1px dashed var(--line);margin-top:-1px;padding-top:16px;
}

/* ---------- CTA band ---------- */
.cta-band{
  background:linear-gradient(120deg,#143F63 0%,#1E5B8E 100%);
  border-radius:var(--r22);
  padding:44px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;
  box-shadow:var(--sh2);
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;bottom:-120px;
  width:300px;height:300px;border-radius:50%;
  border:1px solid rgba(255,255,255,.16);
  box-shadow:0 0 0 46px rgba(255,255,255,.05);
}
.cta-band h2{color:#fff;font-size:clamp(21px,2.2vw,28px);line-height:1.35;margin-bottom:10px}
.cta-band p{color:rgba(255,255,255,.82);font-size:15.5px;max-width:600px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1}

/* ---------- Footer ---------- */
.site-footer{background:#0F2A44;color:rgba(255,255,255,.72);margin-top:84px;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(140deg,#3C82B8,#1E5B8E)}
.site-footer p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.66);max-width:380px}
.footer-h{font-size:14px;font-weight:700;color:#fff;letter-spacing:.6px;margin-bottom:16px}
.footer-list li{margin-bottom:10px}
.footer-list a{font-size:14.5px;color:rgba(255,255,255,.72)}
.footer-list a:hover{color:#fff;text-decoration:none;border-bottom:1px solid var(--accent);padding-bottom:1px}
.footer-bottom{
  margin-top:48px;padding:22px 0;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:rgba(255,255,255,.55);
}
.footer-bottom a{color:rgba(255,255,255,.72)}
.footer-bottom a:hover{color:#fff;text-decoration:none}

/* ---------- Mobile sticky bar ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:10px 16px calc(10px + env(safe-area-inset-bottom));
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -10px 26px -18px rgba(16,35,58,.45);
}
.mobile-bar span{font-size:13.5px;color:var(--ink);font-weight:600;line-height:1.4}

@media (min-width:768px){.mobile-bar{display:none}}
@media (max-width:767px){body{padding-bottom:78px}}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .hero-grid{gap:40px}
}
@media (max-width:1023px){
  .section{padding:64px 0}
  .hero-grid{grid-template-columns:1fr;gap:36px;padding:22px 0 34px}
  .hero-visual{order:2}
  .float-card{left:auto;right:14px;bottom:-16px}
  .status-strip{grid-template-columns:repeat(2,1fr);padding-bottom:26px}
  .split{grid-template-columns:1fr;gap:32px}
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{padding:36px 30px}
}
@media (max-width:767px){
  body{font-size:16px}
  .header-inner{height:64px}
  .main-nav{top:64px}
  .section{padding:52px 0}
  .section-head{margin-bottom:26px}
  .card-grid{grid-template-columns:1fr;gap:20px}
  .compare-head{display:none}
  .compare-row{grid-template-columns:1fr;padding:6px 0}
  .compare-row .c-key{background:#F7FAFD;font-size:14px;letter-spacing:.4px;padding:12px 20px}
  .compare-row .c-cell{border-left:0;padding:12px 20px 14px}
  .compare-row .c-cell::before{
    content:attr(data-label);display:block;font-size:12.5px;color:var(--meta);margin-bottom:4px;
  }
  .step{grid-template-columns:1fr;gap:10px;padding:20px}
  .step-num{border-right:0;border-bottom:1px solid var(--line);padding:0 0 8px;font-size:17px}
  .cta-band{padding:30px 22px;border-radius:var(--r16)}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{margin-top:56px;padding-top:48px}
  .float-card{position:static;margin-top:16px;box-shadow:var(--sh1)}
}
@media (max-width:520px){
  .status-strip{grid-template-columns:1fr;gap:14px}
  .hero-actions .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --brand:#1E5B8E;
  --brand-dark:#143F63;
  --brand-light:#3C82B8;
  --accent:#17A398;
  --bg:#F5F8FB;
  --panel:#FFFFFF;
  --line:#E4EAF1;
  --line-soft:#E8EEF5;
  --input:#D8E1EC;
  --title:#10233A;
  --text:#55677D;
  --meta:#8A99AB;
  --ok:#2E9E6B;
  --warn:#D98A1F;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-xl:22px;
  --sh-1:0 6px 20px -6px rgba(16,35,58,.10);
  --sh-2:0 18px 40px -18px rgba(16,35,58,.20);
  --sh-3:0 24px 56px -24px rgba(16,35,58,.28);
  --ease:180ms cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.wrap{max-width:1240px;margin:0 auto;padding:0 40px}

/* ---------- 顶部提示条 ---------- */
.topbar{background:#EAF2F9;border-bottom:1px solid var(--line);font-size:13.5px;color:#2C4A67}
.topbar .wrap{display:flex;align-items:center;justify-content:center;gap:14px;min-height:42px;flex-wrap:wrap;text-align:center}
.topbar a{color:var(--brand);font-weight:600;border-bottom:1px solid transparent;transition:border-color var(--ease),color var(--ease)}
.topbar a:hover{border-color:var(--brand);color:var(--brand-dark)}

/* ---------- 头部与导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:50;background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:0 1px 0 rgba(16,35,58,.02);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:70px}
.logo{display:flex;align-items:center;gap:11px;font-weight:700;font-size:18px;color:var(--title);letter-spacing:.2px;white-space:nowrap}
.brand-mark{
  width:36px;height:36px;border-radius:11px;flex:none;
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-light) 100%);
  display:grid;place-items:center;box-shadow:0 6px 14px -8px rgba(30,91,142,.7);
}
.brand-mark svg{width:20px;height:20px}
.main-nav{display:flex;align-items:center;gap:2px;position:relative}
.nav-link{
  display:inline-flex;align-items:center;height:70px;padding:0 16px;
  font-size:15px;color:#33475F;position:relative;white-space:nowrap;
  transition:color var(--ease);
}
.nav-link::after{
  content:"";position:absolute;left:16px;right:16px;bottom:16px;height:2px;
  background:var(--accent);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav-link:hover{color:var(--brand-dark)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand);font-weight:600}
.nav-link.active::after{transform:scaleX(1)}
.nav-item{position:relative}
.mega-trigger{display:inline-flex;align-items:center;gap:6px}
.mega-trigger::before{
  content:"";width:6px;height:6px;border-right:1.6px solid currentColor;border-bottom:1.6px solid currentColor;
  transform:rotate(45deg) translateY(-2px);opacity:.6;
}
.mega{
  position:absolute;top:calc(100% + 4px);right:-120px;width:840px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-3);padding:28px;
  display:grid;grid-template-columns:2fr 1fr;gap:28px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity var(--ease),transform var(--ease),visibility var(--ease);
  z-index:60;
}
.nav-item:hover .mega,
.nav-item:focus-within .mega{opacity:1;visibility:visible;transform:translateY(0)}
.mega-cols{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.mega-title{font-size:14.5px;font-weight:600;color:var(--title);margin-bottom:10px}
.mega-list li a{
  display:block;padding:6px 0;font-size:13.5px;color:var(--text);
  transition:color var(--ease),transform var(--ease);
}
.mega-list li a:hover{color:var(--brand);transform:translateX(3px)}
.mega-card{border:1px solid var(--line-soft);border-radius:var(--r-md);overflow:hidden;background:#fff;display:flex;flex-direction:column}
.mega-card .thumb{aspect-ratio:16/10;background:#EEF3F8;overflow:hidden}
.mega-card .thumb img{width:100%;height:100%;object-fit:cover}
.mega-card .body{padding:16px 18px 18px}
.mega-card h4{font-size:15px;font-weight:600;color:var(--title);margin-bottom:6px}
.mega-card p{font-size:13px;line-height:1.7;color:var(--meta);margin-bottom:12px}
.mega-card a{font-size:13.5px;font-weight:600;color:var(--brand)}
.mega-card a .arrow{display:inline-block;transition:transform var(--ease)}
.mega-card a:hover .arrow{transform:translateX(3px)}

/* ---------- 通用按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:10px;padding:12px 22px;font-size:15px;font-weight:600;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
  border:1px solid transparent;cursor:pointer;line-height:1.4;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:0 10px 22px -14px rgba(30,91,142,.9)}
.btn-primary:hover{background:var(--brand-dark);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);background:var(--brand-dark)}
.btn-ghost{background:#fff;color:var(--brand);border-color:#CDDAE8}
.btn-ghost:hover{background:#F0F6FB;transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-text{color:var(--brand);padding:8px 2px;font-weight:600;border-bottom:2px solid transparent;transition:border-color var(--ease)}
.btn-text:hover{border-color:var(--accent)}
.btn[disabled],.btn:disabled{opacity:.45;cursor:not-allowed;transform:none}

/* ---------- 内页矮 Hero ---------- */
.hero{position:relative;background:linear-gradient(180deg,#FFFFFF 0%,#F5F8FB 100%);border-bottom:1px solid var(--line);overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    radial-gradient(circle at 88% 20%, rgba(30,91,142,.055) 0 1px, transparent 1px 118px),
    repeating-linear-gradient(135deg, rgba(30,91,142,.045) 0 1px, transparent 1px 24px);
  opacity:.9;
}
.hero .wrap{position:relative;padding-top:56px;padding-bottom:52px}
.crumb{font-size:13px;color:var(--meta);margin-bottom:18px}
.crumb a{color:var(--meta);transition:color var(--ease)}
.crumb a:hover{color:var(--brand)}
.crumb .sep{margin:0 8px;opacity:.6}
.hero h1{
  font-size:clamp(28px,4vw,44px);line-height:1.24;font-weight:700;color:var(--title);
  max-width:820px;letter-spacing:-.2px;
}
.hero .lead{max-width:800px;margin-top:18px;font-size:17px;line-height:1.85;color:var(--text)}
.hero .lead + .lead{margin-top:8px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px}
.hero-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:1px;
  margin-top:38px;background:var(--line);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;
}
.hero-stats div{background:#fff;padding:18px 22px}
.hero-stats .k{font-size:22px;font-weight:700;color:var(--brand);line-height:1.3}
.hero-stats .v{font-size:13.5px;color:var(--meta);margin-top:2px}

/* ---------- 顶部横向标签条 ---------- */
.tagbar{background:#fff;border-bottom:1px solid var(--line)}
.tagbar .wrap{display:flex;align-items:center;gap:10px;overflow-x:auto;padding-top:14px;padding-bottom:14px}
.tagbar .wrap::-webkit-scrollbar{height:0}
.tag-pill{
  flex:none;display:inline-flex;align-items:center;gap:6px;
  padding:8px 16px;border-radius:999px;font-size:14px;font-weight:600;
  background:#F0F6FB;color:var(--brand-dark);border:1px solid #DCE9F4;
  transition:background-color var(--ease),color var(--ease),border-color var(--ease),transform var(--ease);
}
.tag-pill:hover{background:var(--brand);color:#fff;border-color:var(--brand);transform:translateY(-1px)}
.tagbar .marker{flex:none;font-size:13px;color:var(--meta);margin-right:6px;white-space:nowrap}

/* ---------- 板块通用 ---------- */
.section{padding:78px 0}
.section.soft{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{max-width:820px;margin-bottom:34px}
.sec-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--accent);
  background:rgba(23,163,152,.09);border-radius:999px;padding:5px 14px;margin-bottom:16px;
}
.sec-head h2{font-size:clamp(24px,3vw,32px);line-height:1.3;font-weight:700;color:var(--title)}
.sec-head p{margin-top:14px;font-size:16.5px;color:var(--text)}

/* ---------- 卡片网格 ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:26px}
.svc-card{
  background:var(--panel);border:1px solid var(--line-soft);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.svc-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#D9E5F1}
.svc-card .thumb{aspect-ratio:16/10;background:#EEF3F8;overflow:hidden}
.svc-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform 320ms cubic-bezier(.2,.7,.3,1)}
.svc-card:hover .thumb img{transform:scale(1.03)}
.svc-card .body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.chip{
  display:inline-flex;align-items:center;align-self:flex-start;
  font-size:12.5px;font-weight:600;color:var(--brand-dark);
  background:#EDF4FA;border-radius:999px;padding:4px 12px;margin-bottom:12px;
}
.svc-card h3{font-size:18.5px;line-height:1.5;font-weight:600;color:var(--title);transition:color var(--ease)}
.svc-card:hover h3{color:var(--brand-dark)}
.svc-card .desc{
  margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line-soft);
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--meta);
}
.card-foot .go{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:4px}
.card-foot .go .arrow{transition:transform var(--ease)}
.svc-card:hover .card-foot .go .arrow{transform:translateX(3px)}

/* ---------- 编号要点列表 ---------- */
.point-list{display:grid;gap:14px;margin-top:6px}
.point-item{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-md);
  padding:20px 24px;display:flex;gap:18px;align-items:flex-start;
  transition:box-shadow var(--ease),transform var(--ease);
}
.point-item:hover{box-shadow:var(--sh-1);transform:translateY(-2px)}
.point-item .num{
  flex:none;width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:#EDF4FA;color:var(--brand);font-weight:700;font-size:15px;
}
.point-item h3{font-size:17px;font-weight:600;color:var(--title);margin-bottom:6px}
.point-item p{font-size:14.5px;color:var(--text)}

/* ---------- 对照表 ---------- */
.compare{
  display:grid;grid-template-columns:1fr 1fr;
  background:#FBFDFF;border:1px solid var(--line);border-radius:var(--r-lg);overflow:hidden;
}
.compare-col{padding:30px 30px 32px}
.compare-col + .compare-col{border-left:1px solid var(--line)}
.compare-col h3{font-size:18px;font-weight:700;color:var(--title);display:flex;align-items:center;gap:10px}
.compare-col .dot{width:9px;height:9px;border-radius:50%;background:var(--accent)}
.compare-col .dot.gray{background:#9DB0C4}
.compare-col .hint{font-size:13.5px;color:var(--meta);margin-top:8px;margin-bottom:18px}
.check-list li{
  position:relative;padding:10px 0 10px 26px;font-size:14.5px;color:var(--text);
  border-bottom:1px dashed var(--line);
}
.check-list li:last-child{border-bottom:0}
.check-list li::before{
  content:"";position:absolute;left:2px;top:19px;width:9px;height:5px;
  border-left:2px solid var(--accent);border-bottom:2px solid var(--accent);
  transform:rotate(-45deg);
}
.check-list.warn li::before{border-color:var(--warn)}

/* ---------- 表单 ---------- */
.form-card{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-xl);
  padding:34px 36px;box-shadow:var(--sh-1);
}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px 24px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:14px;font-weight:600;color:var(--title)}
.field .req{color:var(--warn);margin-left:4px}
.field input,.field select,.field textarea{
  width:100%;font:inherit;font-size:15px;color:var(--title);
  background:#FBFDFF;border:1px solid var(--input);border-radius:10px;
  padding:11px 14px;transition:border-color var(--ease),box-shadow var(--ease),background-color var(--ease);
}
.field input,.field select{height:44px;padding:0 14px}
.field textarea{min-height:118px;resize:vertical;line-height:1.7}
.field input:hover,.field select:hover,.field textarea:hover{border-color:#BFCEDD}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:#fff;
  box-shadow:0 0 0 3px rgba(30,91,142,.14);
}
.field .tip{font-size:12.5px;color:var(--meta)}
.form-actions{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-top:26px}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-md);
  margin-bottom:12px;transition:box-shadow var(--ease),border-color var(--ease);
}
.faq-item:hover{box-shadow:var(--sh-1)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--title);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item .chev{
  flex:none;width:22px;height:22px;display:grid;place-items:center;color:var(--brand);
  transition:transform var(--ease);
}
.faq-item[open]{border-color:#D3E3F1;box-shadow:var(--sh-1)}
.faq-item[open] .chev{transform:rotate(90deg)}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text);max-width:760px}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-xl);
  background:linear-gradient(120deg,var(--brand-dark) 0%,#1E5B8E 62%,#2A6E9E 100%);
  color:#fff;padding:46px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;
  box-shadow:var(--sh-2);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(135deg, rgba(255,255,255,.06) 0 1px, transparent 1px 22px);
  pointer-events:none;
}
.cta-band > *{position:relative}
.cta-band h2{font-size:clamp(22px,2.6vw,28px);font-weight:700;line-height:1.35}
.cta-band p{margin-top:10px;font-size:15.5px;color:rgba(255,255,255,.82);max-width:620px}
.cta-band .actions{display:flex;gap:14px;flex-wrap:wrap}
.cta-band .btn-primary{background:#fff;color:var(--brand-dark);box-shadow:0 12px 26px -16px rgba(0,0,0,.6)}
.cta-band .btn-primary:hover{background:#EDF4FA;color:var(--brand-dark)}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.45)}
.cta-band .btn-ghost:hover{background:rgba(255,255,255,.12)}

/* ---------- 页脚 ---------- */
.site-footer{background:#0F2438;color:#A9BACB;margin-top:82px;padding:64px 0 24px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:38px}
.footer-brand{display:flex;align-items:center;gap:11px;color:#fff;font-weight:700;font-size:18px;margin-bottom:16px}
.footer-brand .brand-mark{background:linear-gradient(135deg,#2A6E9E 0%,#3C82B8 100%)}
.site-footer p{font-size:14px;line-height:1.85;color:#9DB0C3;max-width:400px}
.footer-h{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.footer-list li a{
  display:block;padding:6px 0;font-size:14px;color:#9DB0C3;
  transition:color var(--ease),transform var(--ease);
}
.footer-list li a:hover{color:#fff;transform:translateX(3px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:44px;padding-top:20px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:#8A99AB;
}
.footer-bottom a{color:#B9C7D6;transition:color var(--ease)}
.footer-bottom a:hover{color:#fff}

/* ---------- 移动端固定转化条 ---------- */
.mobile-bar{
  position:fixed;left:0;right:0;bottom:0;z-index:70;
  background:#fff;border-top:1px solid var(--line);
  box-shadow:0 -8px 24px -16px rgba(16,35,58,.5);
  padding:10px 18px calc(10px + env(safe-area-inset-bottom));
  display:none;align-items:center;justify-content:space-between;gap:12px;
}
.mobile-bar .txt{font-size:13px;color:var(--text);line-height:1.5}
.mobile-bar .btn{padding:10px 18px;font-size:14px}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .wrap{padding:0 32px}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .mega{width:640px;right:-40px;grid-template-columns:1fr}
  .mega-card{display:none}
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr}
}
@media (max-width:768px){
  .wrap{padding:0 20px}
  .header-inner{flex-wrap:wrap;min-height:auto;padding-top:12px;gap:0}
  .main-nav{width:100%;overflow-x:auto;flex-wrap:nowrap;margin-top:4px}
  .main-nav::-webkit-scrollbar{height:0}
  .nav-link{height:50px;padding:0 14px;font-size:14.5px}
  .nav-link::after{bottom:10px;left:14px;right:14px}
  .nav-item{display:none}
  .hero .wrap{padding-top:36px;padding-bottom:34px}
  .hero h1{font-size:27px;line-height:1.3}
  .hero .lead{font-size:15.5px}
  .hero-actions{gap:12px}
  .hero-actions .btn{flex:1 1 auto}
  .hero-stats{grid-template-columns:1fr;margin-top:28px}
  .section{padding:52px 0}
  .grid-3{grid-template-columns:1fr;gap:20px}
  .compare{grid-template-columns:1fr}
  .compare-col + .compare-col{border-left:0;border-top:1px solid var(--line)}
  .form-card{padding:24px 20px;border-radius:var(--r-lg)}
  .form-grid{grid-template-columns:1fr}
  .cta-band{padding:32px 24px;border-radius:var(--r-lg)}
  .cta-band .actions{width:100%}
  .cta-band .actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .site-footer{padding-top:48px;margin-top:56px}
  .site-footer p{max-width:none}
  .mobile-bar{display:flex}
  body{padding-bottom:84px}
}
@media (max-width:520px){
  .logo{font-size:16px}
  .footer-grid{grid-template-columns:1fr}
  .tagbar .marker{display:none}
  .hero h1{font-size:24px}
  .svc-card .body{padding:18px 18px 20px}
  .point-item{padding:16px 18px;gap:14px}
}