/* roulang page: index */
:root{
  --brand:#1B5E7E;
  --brand-d:#14495F;
  --brand-l:#E8F1F5;
  --mint:#2E9E8F;
  --mint-l:#E4F3F0;
  --amber:#E4762F;
  --amber-d:#C9621F;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --line:#E2E9ED;
  --ink:#17272F;
  --ink-2:#5B6E78;
  --white:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-card:0 1px 2px rgba(23,39,47,.04), 0 8px 24px rgba(23,39,47,.06);
  --sh-hover:0 12px 32px rgba(23,39,47,.10);
  --tr:.22s cubic-bezier(.2,.7,.3,1);
  --side:248px;
  --sec-y:88px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  padding-bottom:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color var(--tr),border-color var(--tr),background-color var(--tr)}
a:hover{color:var(--amber)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,h5,p{margin:0}
button,input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(27,94,126,.12);border-radius:6px}
.container{max-width:1160px;padding-left:24px;padding-right:24px;margin:0 auto;width:100%}
.num{font-variant-numeric:tabular-nums}

/* ============ 布局骨架 ============ */
.app-shell{display:flex;align-items:flex-start;min-height:100vh;width:100%}
.app-main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;min-height:100vh}

/* ============ 左侧竖向导航 ============ */
.side-nav{
  width:var(--side);flex:0 0 var(--side);position:sticky;top:0;height:100vh;
  background:var(--card);border-right:1px solid var(--line);
  display:flex;flex-direction:column;z-index:1040;
}
.brand-box{
  height:72px;display:flex;align-items:center;gap:10px;padding:0 20px;
  border-bottom:1px solid var(--line);flex:0 0 72px;
}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:linear-gradient(140deg,var(--brand) 0%,var(--mint) 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;min-width:0}
.brand-text b{font-size:15px;font-weight:700;color:var(--ink);white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.brand-text span{font-size:11px;color:var(--ink-2);letter-spacing:.04em}
.nav-scroll{flex:1 1 auto;overflow-y:auto;padding:14px 14px 18px;scrollbar-width:thin;scrollbar-color:#cfdbe1 transparent}
.nav-scroll::-webkit-scrollbar{width:6px}
.nav-scroll::-webkit-scrollbar-thumb{background:#cfdbe1;border-radius:99px}
.nav-label{font-size:11px;letter-spacing:.12em;color:#8FA3AD;padding:6px 12px 8px;font-weight:600}
.nav-list{display:flex;flex-direction:column;gap:2px}
.nav-link-i{
  position:relative;display:flex;align-items:center;gap:12px;height:44px;padding:0 12px;border-radius:var(--r-btn);
  color:var(--ink-2);font-size:15px;font-weight:500;transition:background var(--tr),color var(--tr),transform var(--tr);
}
.nav-link-i i{width:18px;font-size:15px;text-align:center;color:#8FA3AD;transition:color var(--tr)}
.nav-link-i:hover{background:var(--brand-l);color:var(--brand);transform:translateX(2px)}
.nav-link-i:hover i{color:var(--brand)}
.nav-link-i.active{background:var(--brand-l);color:var(--brand);font-weight:600}
.nav-link-i.active i{color:var(--brand)}
.nav-link-i.active::before{content:"";position:absolute;left:-14px;top:10px;bottom:10px;width:3px;background:var(--brand);border-radius:0 3px 3px 0}
.nav-divider{height:1px;background:var(--line);margin:14px 4px}
.nav-foot{padding:14px;border-top:1px solid var(--line);flex:0 0 auto}
.btn-mini{
  display:flex;align-items:center;justify-content:center;gap:8px;width:100%;height:40px;border-radius:var(--r-btn);
  background:var(--amber);color:#fff;font-size:14px;font-weight:600;border:none;
  transition:background var(--tr),transform var(--tr);
}
.btn-mini:hover{background:var(--amber-d);color:#fff;transform:translateY(-1px)}
.btn-mini:active{transform:translateY(1px)}
.nav-contact{margin-top:10px;font-size:12px;color:var(--ink-2);text-align:center;line-height:1.6}
.nav-contact a{color:var(--brand);font-size:12px}

/* ============ 移动端顶栏 ============ */
.mobile-topbar{
  display:none;height:60px;background:var(--card);border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;padding:0 16px;position:sticky;top:0;z-index:1030;
  transition:box-shadow var(--tr);
}
.mobile-topbar.scrolled{box-shadow:0 4px 16px rgba(23,39,47,.07)}
.mobile-brand{display:flex;align-items:center;gap:9px;min-width:0}
.mobile-brand b{font-size:15px;font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.hamburger{
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:17px;flex:0 0 44px;
}
.hamburger:hover{background:var(--brand-l)}
.offcanvas{background:var(--card);max-width:290px}
.offcanvas-header{border-bottom:1px solid var(--line);height:72px;padding:0 20px}
.offcanvas-body{padding:14px}
.drawer-mask{background:rgba(23,39,47,.45)}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-y) 0;position:relative}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.sec-head{margin-bottom:44px;max-width:720px}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;letter-spacing:.08em;color:var(--brand);
  background:var(--brand-l);border-radius:999px;padding:5px 12px;font-weight:600;margin-bottom:16px;
}
.eyebrow i{font-size:11px}
h1{font-size:clamp(30px,3.4vw,46px);line-height:1.22;font-weight:700;letter-spacing:-.01em}
h2{font-size:clamp(24px,2.4vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.01em;position:relative;padding-left:16px}
h2::before{content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:4px;border-radius:3px;background:var(--brand)}
.sec-head.center h2{padding-left:0}
.sec-head.center h2::after{content:"";display:block;width:32px;height:3px;border-radius:3px;background:var(--brand);margin:16px auto 0}
.sec-head.center h2::before{display:none}
h3{font-size:21px;line-height:1.4;font-weight:600}
.sub{margin-top:14px;font-size:16px;color:var(--ink-2);line-height:1.8}
.muted{color:var(--ink-2);font-size:14px;line-height:1.7}

/* ============ 按钮 ============ */
.btn-k{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;height:48px;padding:0 26px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1.5px solid transparent;cursor:pointer;
  transition:background var(--tr),color var(--tr),border-color var(--tr),transform var(--tr),box-shadow var(--tr);
  min-width:44px;
}
.btn-k.primary{background:var(--amber);color:#fff;box-shadow:0 6px 18px rgba(228,118,47,.24)}
.btn-k.primary:hover{background:var(--amber-d);color:#fff;transform:translateY(-2px);box-shadow:0 10px 24px rgba(228,118,47,.3)}
.btn-k.primary:active{transform:translateY(1px)}
.btn-k.ghost{background:transparent;color:var(--brand);border-color:var(--brand)}
.btn-k.ghost:hover{background:var(--brand-l);color:var(--brand-d);transform:translateY(-2px)}
.btn-k.ghost:active{transform:translateY(1px)}
.btn-k.sm{height:40px;padding:0 18px;font-size:14px}
.link-more{font-size:14px;font-weight:600;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--amber);text-decoration:underline;text-underline-offset:3px}
.link-more i{font-size:12px}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;padding:84px 0 72px;
  background:linear-gradient(180deg,#F7FAFC 0%,#EEF5F8 100%);
  border-bottom:1px solid var(--line);
}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.04;
  background-image:linear-gradient(var(--brand) 1px,transparent 1px),linear-gradient(90deg,var(--brand) 1px,transparent 1px);
  background-size:48px 48px;
}
.hero-grid{position:relative;display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
.hero-copy{max-width:560px}
.hero-copy h1{margin-bottom:18px}
.hero-copy h1 .hl{color:var(--brand)}
.hero-sub{font-size:17px;color:var(--ink-2);line-height:1.8;max-width:520px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.trust-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:8px;
  margin-top:40px;padding-top:26px;border-top:1px solid var(--line);
}
.trust-item b{display:block;font-size:24px;font-weight:700;color:var(--brand);line-height:1.3;font-variant-numeric:tabular-nums}
.trust-item span{font-size:13px;color:var(--ink-2);letter-spacing:.02em}
.hero-figure{position:relative}
.hero-figure img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);
  box-shadow:0 18px 44px rgba(23,39,47,.14);border:1px solid rgba(255,255,255,.7);
}
.hero-figure .float-card{
  position:absolute;left:-18px;bottom:26px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-card);padding:14px 18px;display:flex;align-items:center;gap:12px;
}
.float-card .fc-ico{
  width:38px;height:38px;border-radius:10px;background:var(--mint-l);color:var(--mint);
  display:flex;align-items:center;justify-content:center;font-size:16px;flex:0 0 38px;
}
.float-card b{display:block;font-size:14px;font-weight:600;line-height:1.4}
.float-card span{font-size:12px;color:var(--ink-2)}

/* ============ 卖点三连 ============ */
.point-grid{display:grid;grid-template-columns:1.32fr 1fr 1fr;gap:24px;align-items:stretch}
.point-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:30px 26px;
  box-shadow:var(--sh-card);position:relative;overflow:hidden;
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.point-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#D3E0E7}
.point-card .pnum{
  font-size:34px;font-weight:700;color:var(--brand-l);line-height:1;letter-spacing:-.02em;font-variant-numeric:tabular-nums;
  margin-bottom:16px;
}
.point-card.wide .pnum{font-size:52px;color:#D6E7EE}
.point-card .pico{
  width:44px;height:44px;border-radius:12px;background:var(--brand-l);color:var(--brand);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:18px;
}
.point-card.wide .pico{background:#eef6f9}
.point-card h3{margin-bottom:12px}
.point-card p{font-size:14.5px;color:var(--ink-2);line-height:1.8}
.point-card.wide{background:linear-gradient(160deg,#FFFFFF 0%,#F3F9FB 100%)}

/* ============ 场景演示（步骤） ============ */
.step-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;padding:34px 0;border-bottom:1px dashed var(--line)}
.step-row:last-child{border-bottom:none;padding-bottom:0}
.step-row:first-child{padding-top:0}
.step-row.reverse .step-media{order:2}
.step-media img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-card)}
.step-body .step-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:.06em;
  color:var(--mint);background:var(--mint-l);border-radius:999px;padding:4px 12px;margin-bottom:14px;
}
.step-body h3{margin-bottom:12px}
.step-body p{font-size:15px;color:var(--ink-2);line-height:1.85}
.step-body ul{margin-top:14px;display:flex;flex-direction:column;gap:8px}
.step-body ul li{font-size:14px;color:var(--ink-2);display:flex;gap:10px;align-items:flex-start}
.step-body ul li i{color:var(--mint);font-size:13px;margin-top:7px}

/* ============ 社会认同 ============ */
.logo-wall{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:16px;margin-bottom:44px}
.logo-box{
  height:74px;border:1px dashed #CFDCE3;border-radius:var(--r-card);background:#FBFDFE;
  display:flex;align-items:center;justify-content:center;text-align:center;
  font-size:12.5px;color:#8FA3AD;letter-spacing:.02em;padding:0 8px;
}
.quote-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.quote-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:28px;
  box-shadow:var(--sh-card);position:relative;
}
.quote-card .qmark{font-size:30px;color:var(--brand-l);line-height:1;font-family:Georgia,serif}
.quote-card p{margin:14px 0 22px;font-size:15px;color:var(--ink);line-height:1.9}
.quote-person{display:flex;align-items:center;gap:12px;border-top:1px solid var(--line);padding-top:18px}
.quote-person img{width:44px;height:44px;border-radius:50%;object-fit:cover;flex:0 0 44px}
.quote-person b{display:block;font-size:14px;font-weight:600;line-height:1.4}
.quote-person span{font-size:12.5px;color:var(--ink-2)}

/* ============ 最新信息 CMS ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.post-card{
  display:flex;flex-direction:column;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-card);color:inherit;
  transition:transform var(--tr),box-shadow var(--tr),border-color var(--tr);
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:#D3E0E7;color:inherit}
.post-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#E8F1F5,#F5F8FA)}
.post-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s cubic-bezier(.2,.7,.3,1)}
.post-card:hover .post-thumb img{transform:scale(1.04)}
.post-thumb .ph-text{
  position:absolute;inset:0;display:flex;align-items:center;justify-content:center;
  font-size:13px;color:#8FA3AD;letter-spacing:.04em;
}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.badge-k{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;letter-spacing:.04em;
  color:var(--brand);background:var(--brand-l);border-radius:999px;padding:4px 10px;align-self:flex-start;
}
.badge-k.mint{color:var(--mint);background:var(--mint-l)}
.badge-k.amber{color:var(--amber-d);background:#FCEFE5}
.post-body h3{
  font-size:17px;line-height:1.5;font-weight:600;margin:14px 0 10px;color:var(--ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card:hover .post-body h3{color:var(--amber)}
.post-body .excerpt{
  font-size:14px;color:var(--ink-2);line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:16px;font-size:13px;color:#8FA3AD;display:flex;align-items:center;gap:14px;flex-wrap:wrap;
  border-top:1px solid var(--line);
}
.post-meta span{display:inline-flex;align-items:center;gap:6px}
.empty-state{
  grid-column:1/-1;background:#fff;border:1px dashed #CFDCE3;border-radius:var(--r-card);
  padding:56px 24px;text-align:center;
}
.empty-state i{font-size:30px;color:#B7C8D1}
.empty-state p{margin:16px 0 20px;color:var(--ink-2);font-size:15px}

/* ============ FAQ ============ */
.faq-wrap{max-width:880px;margin:0 auto}
.accordion-k .accordion-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card)!important;margin-bottom:12px;overflow:hidden;
  box-shadow:0 1px 2px rgba(23,39,47,.03);
}
.accordion-k .accordion-item:last-child{margin-bottom:0}
.accordion-k .accordion-button{
  background:#fff;color:var(--ink);font-size:16px;font-weight:600;padding:20px 54px 20px 22px;
  border:none;box-shadow:none;gap:12px;
}
.accordion-k .accordion-button:not(.collapsed){color:var(--brand);background:#FBFDFE;}
.accordion-k .accordion-button:not(.collapsed)::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;background:var(--brand);border-radius:0 3px 3px 0;
}
.accordion-k .accordion-button:focus{box-shadow:none;border-color:transparent}
.accordion-k .accordion-button::after{
  content:"+";background-image:none;font-size:20px;font-weight:400;color:var(--brand);line-height:1;
  width:26px;height:26px;display:flex;align-items:center;justify-content:center;
  transform:none;transition:transform var(--tr),color var(--tr);
  border:1px solid var(--line);border-radius:50%;
}
.accordion-k .accordion-button:not(.collapsed)::after{content:"−";transform:none;color:var(--amber);border-color:#F3DCC9}
.accordion-k .accordion-body{padding:0 22px 22px;font-size:15px;color:var(--ink-2);line-height:1.85}

/* ============ 页脚 ============ */
.site-footer{background:#F5F8FA;border-top:1px solid var(--line);padding:64px 0 28px;margin-top:0}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:40px}
.foot-brand .fb-top{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.foot-brand p{font-size:14px;color:var(--ink-2);line-height:1.8;max-width:290px}
.foot-contact{margin-top:18px;font-size:14px;color:var(--ink-2);display:flex;flex-direction:column;gap:8px}
.foot-contact span{display:inline-flex;align-items:center;gap:9px}
.foot-contact i{color:var(--brand);font-size:13px;width:16px;text-align:center}
.foot-title{font-size:14px;font-weight:700;color:var(--ink);margin-bottom:18px;letter-spacing:.02em}
.foot-links{display:flex;flex-direction:column;gap:11px}
.foot-links a{font-size:14px;color:var(--ink-2)}
.foot-links a:hover{color:var(--brand)}
.foot-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA3AD;
}
.foot-bottom a{color:#8FA3AD}
.foot-bottom a:hover{color:var(--brand)}

/* ============ 悬浮转化条 ============ */
.float-bar{
  position:fixed;right:28px;bottom:28px;z-index:1050;display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:8px 10px 8px 20px;
  box-shadow:0 14px 36px rgba(23,39,47,.14);
}
.float-bar .fb-text{font-size:14px;color:var(--ink);font-weight:600;white-space:nowrap}
.float-bar .fb-link{font-size:14px;color:var(--brand);font-weight:600;white-space:nowrap}
.float-bar .fb-link:hover{color:var(--amber);text-decoration:underline;text-underline-offset:3px}
.float-bar .btn-k{height:44px;padding:0 20px}

/* ============ 响应式 ============ */
@media (min-width:1400px){
  :root{--side:256px}
}
@media (max-width:1199.98px){
  .nav-link-i{font-size:14px;gap:10px}
  .brand-text b{font-size:14px}
  .point-grid{grid-template-columns:1.2fr 1fr 1fr;gap:20px}
  .hero-grid{gap:40px}
}
@media (max-width:991.98px){
  :root{--sec-y:64px}
  .side-nav{display:none}
  .mobile-topbar{display:flex}
  .hero{padding:56px 0 52px}
  .hero-grid{grid-template-columns:1fr;gap:36px}
  .hero-copy{max-width:none}
  .hero-figure .float-card{left:12px;bottom:12px}
  .point-grid{grid-template-columns:1fr 1fr;gap:20px}
  .point-card.wide{grid-column:1/-1;display:grid;grid-template-columns:auto 1fr;gap:0 22px;align-items:start}
  .point-card.wide .pnum{grid-row:1/3;margin-bottom:0;font-size:44px}
  .logo-wall{grid-template-columns:repeat(3,minmax(0,1fr))}
  .post-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .foot-grid{grid-template-columns:1fr 1fr;gap:32px}
  .step-row{gap:32px}
}
@media (max-width:767.98px){
  body{font-size:15.5px}
  .container{padding-left:18px;padding-right:18px}
  .section{padding:44px 0}
  .sec-head{margin-bottom:30px}
  .hero{padding:44px 0 40px}
  .hero-cta{gap:10px}
  .btn-k{height:46px;padding:0 20px;font-size:14.5px}
  .btn-k.primary,.btn-k.ghost{flex:1 1 auto}
  .trust-strip{grid-template-columns:1fr 1fr;gap:18px 12px}
  .trust-item b{font-size:21px}
  .point-grid{grid-template-columns:1fr}
  .point-card.wide{display:block}
  .point-card.wide .pnum{font-size:44px;margin-bottom:14px}
  .step-row,.step-row.reverse{grid-template-columns:1fr;gap:20px;padding:24px 0}
  .step-row.reverse .step-media{order:0}
  .quote-grid{grid-template-columns:1fr}
  .logo-wall{grid-template-columns:1fr 1fr;gap:12px}
  .post-grid{grid-template-columns:1fr}
  .foot-grid{grid-template-columns:1fr;gap:30px}
  .foot-brand p{max-width:none}
  .foot-bottom{flex-direction:column;align-items:flex-start;text-align:left}
  .float-bar{
    right:0;left:0;bottom:0;border-radius:0;padding:10px 18px;gap:12px;justify-content:space-between;
    border-left:none;border-right:none;border-bottom:none;box-shadow:0 -6px 20px rgba(23,39,47,.10);
  }
  .float-bar .fb-text{display:none}
  .float-bar .btn-k{height:44px;padding:0 18px}
  .app-main{padding-bottom:72px}
  .accordion-k .accordion-button{font-size:15px;padding:16px 48px 16px 18px}
  .accordion-k .accordion-body{padding:0 18px 18px;font-size:14.5px}
}
@media (max-width:519.98px){
  h1{font-size:28px;line-height:1.28}
  h2{font-size:23px;padding-left:13px}
  .hero-figure img{aspect-ratio:16/10}
  .float-card{padding:12px 14px}
  .float-card b{font-size:13px}
  .trust-strip{grid-template-columns:1fr 1fr}
  .logo-wall{grid-template-columns:1fr}
  .quote-card{padding:22px}
  .post-body{padding:18px}
  .float-bar{gap:8px}
  .float-bar .fb-link{font-size:13px}
  .float-bar .btn-k{font-size:13.5px;padding:0 14px}
}

/* roulang page: article */
:root{
  --brand:#1B5E7E;
  --brand-dark:#14495F;
  --brand-soft:#E8F1F5;
  --teal:#2E9E8F;
  --teal-soft:#E4F4F1;
  --warm:#E4762F;
  --warm-dark:#C9621F;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --line:#E2E9ED;
  --ink:#17272F;
  --muted:#5B6E78;
  --white:#FFFFFF;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(23,39,47,.04), 0 8px 24px rgba(23,39,47,.06);
  --sh-2:0 12px 32px rgba(23,39,47,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --side:248px;
  --gap-sec:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease);}
a:hover{color:var(--warm);}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);line-height:1.3;}
p{margin:0 0 16px;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(27,94,126,.12);border-radius:6px;}
.container{max-width:1160px;padding-left:20px;padding-right:20px;margin-right:auto;margin-left:auto;width:100%;}
[id]{scroll-margin-top:96px;}

/* ---------- 布局骨架 ---------- */
.layout{display:block;}
.main-wrap{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column;}
.page-main{flex:1 1 auto;padding:26px 0 0;}

/* ---------- 左侧导航 ---------- */
.sidebar{
  position:fixed;left:0;top:0;width:var(--side);height:100vh;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;z-index:60;
  transition:transform .28s var(--ease);
}
.sidebar::-webkit-scrollbar{width:6px;}
.sidebar::-webkit-scrollbar-thumb{background:#D6E1E7;border-radius:6px;}
.brand-zone{flex:0 0 auto;height:72px;display:flex;align-items:center;padding:0 18px;border-bottom:1px solid var(--line);}
.brand{display:flex;align-items:center;gap:10px;}
.brand-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(135deg,#1B5E7E 0%,#2E9E8F 100%);
  color:#fff;font-weight:700;font-size:16px;display:grid;place-items:center;letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text b{font-size:15px;font-weight:700;color:var(--ink);}
.brand-text small{font-size:12px;color:var(--muted);}
.nav-list{flex:1 1 auto;overflow-y:auto;padding:14px 12px;display:flex;flex-direction:column;gap:4px;}
.nav-link-i{
  position:relative;display:flex;align-items:center;gap:10px;
  min-height:44px;padding:0 12px;border-radius:10px;
  color:var(--muted);font-size:15px;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease);
}
.nav-link-i i{width:18px;font-size:15px;color:var(--brand);opacity:.85;text-align:center;}
.nav-link-i:hover{background:var(--brand-soft);color:var(--brand);transform:translateX(2px);}
.nav-link-i.active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.nav-link-i.active i{opacity:1;}
.nav-link-i.active::before{
  content:"";position:absolute;left:-12px;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--brand);
}
.side-foot{flex:0 0 auto;padding:14px 16px 18px;border-top:1px solid var(--line);display:flex;flex-direction:column;gap:8px;}
.side-foot span{font-size:12px;color:var(--muted);line-height:1.6;}

/* ---------- 按钮 ---------- */
.btn-primary,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1.5px solid transparent;
  transition:background .22s var(--ease),color .22s var(--ease),transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.btn-primary{background:var(--warm);color:#fff;box-shadow:0 6px 16px rgba(228,118,47,.22);}
.btn-primary:hover{background:var(--warm-dark);color:#fff;transform:translateY(-2px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-block{width:100%;}
.btn-sm{min-height:38px;padding:0 14px;font-size:14px;}

/* ---------- 移动端顶栏 ---------- */
.mobile-top{
  display:none;position:sticky;top:0;z-index:50;height:60px;
  align-items:center;justify-content:space-between;gap:10px;
  padding:0 14px;background:#fff;border-bottom:1px solid var(--line);
  transition:box-shadow .22s var(--ease);
}
.mobile-top.scrolled{box-shadow:0 6px 18px rgba(23,39,47,.08);}
.burger{
  width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;
  color:var(--brand);font-size:17px;display:grid;place-items:center;cursor:pointer;
}
.burger:hover{background:var(--brand-soft);}
.m-brand{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--ink);}
.m-brand .brand-mark{width:30px;height:30px;border-radius:9px;font-size:14px;}
.m-cta{
  display:inline-flex;align-items:center;min-height:38px;padding:0 14px;border-radius:var(--r-btn);
  background:var(--warm);color:#fff;font-size:14px;font-weight:600;
}
.m-cta:hover{background:var(--warm-dark);color:#fff;}
.nav-mask{
  position:fixed;inset:0;background:rgba(23,39,47,.45);opacity:0;visibility:hidden;
  transition:opacity .26s var(--ease),visibility .26s var(--ease);z-index:55;
}
.nav-mask.show{opacity:1;visibility:visible;}

/* ---------- 面包屑 ---------- */
.crumbs{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--muted);padding:4px 0 18px;}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:#C3D0D7;}
.crumbs .cur{color:var(--ink);font-weight:600;max-width:52ch;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

/* ---------- 文章布局 ---------- */
.article-shell{display:flex;align-items:flex-start;gap:36px;}
.article-main{flex:1 1 auto;min-width:0;max-width:780px;}
.article-aside{flex:0 0 260px;width:260px;position:sticky;top:24px;}
.article-head{padding-bottom:22px;border-bottom:1px solid var(--line);margin-bottom:26px;}
.badge-cat{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;letter-spacing:.04em;font-weight:600;
}
.badge-cat.is-teal{background:var(--teal-soft);color:#217268;}
.article-head h1{
  font-size:clamp(27px,3.1vw,40px);line-height:1.28;font-weight:700;margin:14px 0 16px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;font-size:14px;color:var(--muted);}
.meta-row i{color:var(--brand);margin-right:6px;font-size:13px;}

/* ---------- 正文排版 ---------- */
.article-body{font-size:16px;line-height:1.95;color:var(--ink);}
.article-body > *:first-child{margin-top:0;}
.article-body p{margin:0 0 18px;}
.article-body h2{
  font-size:24px;line-height:1.42;margin:40px 0 16px;padding-left:12px;border-left:4px solid var(--brand);
}
.article-body h3{font-size:20px;line-height:1.5;margin:32px 0 12px;color:var(--brand-dark);}
.article-body h4{font-size:17px;margin:24px 0 10px;}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;}
.article-body ul li{position:relative;padding-left:16px;margin:8px 0;}
.article-body ul li::before{content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--teal);}
.article-body ol{list-style:decimal;}
.article-body ol li{margin:8px 0;padding-left:4px;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body a:hover{color:var(--warm);}
.article-body img{border-radius:var(--r-img);margin:20px auto;}
.article-body figure{margin:22px 0;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px;}
.article-body blockquote{
  margin:22px 0;padding:14px 18px;background:var(--brand-soft);
  border-left:3px solid var(--brand);border-radius:0 10px 10px 0;color:var(--brand-dark);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body table{width:100%;border-collapse:collapse;margin:20px 0;font-size:15px;}
.article-body th,.article-body td{padding:12px 14px;text-align:left;border-bottom:1px solid var(--line);}
.article-body th{background:var(--brand-soft);color:var(--brand-dark);font-weight:600;}
.article-body tbody tr:hover td{background:#FAFCFD;}
.article-body pre{
  background:#17272F;color:#E8F1F5;padding:16px 18px;border-radius:12px;
  overflow:auto;font-size:14px;line-height:1.7;margin:20px 0;
}
.article-body code{background:var(--brand-soft);color:var(--brand-dark);padding:2px 6px;border-radius:6px;font-size:14px;}
.article-body pre code{background:none;color:inherit;padding:0;}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0;}
.empty-state{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:44px 24px;text-align:center;box-shadow:var(--sh-1);
}
.empty-state i{font-size:34px;color:var(--brand);opacity:.7;}
.empty-state p{font-size:18px;font-weight:600;margin:14px 0 6px;}
.empty-state .empty-sub{font-size:14px;color:var(--muted);font-weight:400;margin-bottom:20px;}

/* ---------- 标签与返回 ---------- */
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:34px 0 0;padding-top:22px;border-top:1px solid var(--line);}
.tag-label{font-size:13px;color:var(--muted);letter-spacing:.04em;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand);font-size:12px;letter-spacing:.04em;
  transition:background .22s var(--ease),color .22s var(--ease);
}
.tag:hover{background:var(--brand);color:#fff;}
.tag.is-teal{background:var(--teal-soft);color:#217268;}
.tag.is-teal:hover{background:var(--teal);color:#fff;}
.back-actions{display:flex;flex-wrap:wrap;gap:12px;margin:26px 0 0;}

/* ---------- 侧栏相关推荐 ---------- */
.aside-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:18px;box-shadow:var(--sh-1);}
.aside-title{font-size:16px;font-weight:700;padding-left:10px;border-left:3px solid var(--brand);margin-bottom:14px;}
.rel-item{display:flex;gap:10px;padding:12px 0;border-bottom:1px dashed var(--line);}
.rel-item:last-child{border-bottom:0;padding-bottom:0;}
.rel-thumb{flex:0 0 auto;width:76px;height:54px;border-radius:8px;object-fit:cover;background:linear-gradient(135deg,#E8F1F5,#E4F4F1);}
.rel-item b{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.55;transition:color .22s var(--ease);}
.rel-item span{display:block;font-size:12px;color:var(--muted);margin-top:4px;}
.rel-item:hover b{color:var(--warm);}
.aside-tip{
  margin-top:16px;background:var(--teal-soft);border-radius:12px;padding:14px 16px;
  font-size:13px;line-height:1.75;color:#1F5F58;
}
.aside-tip b{display:block;color:#174F49;margin-bottom:4px;font-size:14px;}

/* ---------- CTA 区块 ---------- */
.cta-band{
  margin:64px 0 0;background:#fff;border:1px solid var(--line);border-radius:18px;
  padding:32px;box-shadow:var(--sh-1);
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-band h2{font-size:22px;margin-bottom:8px;}
.cta-band p{margin:0;color:var(--muted);font-size:14.5px;max-width:56ch;}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.site-footer{background:#F5F8FA;border-top:1px solid var(--line);margin-top:72px;padding:56px 0 22px;}
.foot-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px;}
.fb-top{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand p{font-size:14px;color:var(--muted);max-width:34ch;line-height:1.8;}
.foot-contact{display:flex;flex-direction:column;gap:8px;margin-top:14px;font-size:14px;color:var(--muted);}
.foot-contact i{color:var(--brand);width:16px;margin-right:6px;}
.foot-title{font-size:15px;font-weight:700;margin-bottom:14px;color:var(--ink);}
.foot-links{display:flex;flex-direction:column;gap:10px;}
.foot-links a{font-size:14px;color:var(--muted);}
.foot-links a:hover{color:var(--brand);}
.foot-bottom{
  margin-top:34px;padding-top:18px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--muted);
}

/* ---------- 响应式 ---------- */
@media (max-width:1399.98px){
  :root{--gap-sec:80px;}
}
@media (max-width:1199.98px){
  .article-shell{flex-direction:column;gap:28px;}
  .article-aside{position:static;width:100%;flex:1 1 auto;}
  .article-main{max-width:100%;}
  .rel-list{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:14px;}
  .rel-item{border-bottom:0;padding:0;background:#fff;}
  .foot-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px;}
}
@media (max-width:991.98px){
  .sidebar{transform:translateX(-100%);box-shadow:0 0 40px rgba(23,39,47,.18);}
  .sidebar.open{transform:translateX(0);}
  .main-wrap{margin-left:0;}
  .mobile-top{display:flex;}
  .page-main{padding-top:18px;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  .cta-band{padding:26px 22px;}
}
@media (max-width:767.98px){
  body{font-size:15.5px;}
  .article-body{font-size:15.5px;line-height:1.9;}
  .article-body h2{font-size:21px;margin-top:34px;}
  .article-body h3{font-size:18px;}
  .article-head h1{font-size:26px;}
  .crumbs .cur{max-width:34ch;}
  .site-footer{padding-top:44px;margin-top:56px;}
  .foot-grid{grid-template-columns:1fr;gap:26px;}
  .cta-band{margin-top:48px;}
  .cta-actions .btn-primary,.cta-actions .btn-ghost{width:100%;}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
  .article-head h1{font-size:23px;}
  .meta-row{gap:6px 14px;font-size:13px;}
  .article-body img{margin-left:0;margin-right:0;width:100%;}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap;}
  .back-actions .btn-primary,.back-actions .btn-ghost{width:100%;}
  .foot-bottom{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --brand:#1B5E7E;
  --brand-d:#14495F;
  --brand-l:#E8F1F5;
  --teal:#2E9E8F;
  --teal-l:#E4F4F1;
  --accent:#E4762F;
  --accent-d:#c96423;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --line:#E2E9ED;
  --line-2:#D8E2E8;
  --text:#17272F;
  --muted:#5B6E78;
  --white:#FFFFFF;
  --danger:#C9483C;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(23,39,47,.04), 0 8px 24px rgba(23,39,47,.06);
  --sh-2:0 12px 32px rgba(23,39,47,.10);
  --ease:cubic-bezier(.2,.7,.3,1);
  --side-w:248px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,-apple-system,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  font-variant-numeric:tabular-nums;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease);}
a:hover{color:var(--accent);}
button,input,select,textarea{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text);letter-spacing:.01em;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(27,94,126,.12);border-radius:6px;}

.container,.container-fluid{
  width:100%;
  max-width:1160px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ============ 应用骨架 ============ */
.app-shell{min-height:100vh;}
.main-wrap{
  margin-left:var(--side-w);
  min-height:100vh;
  display:flex;
  flex-direction:column;
}

/* ============ 左侧导航 ============ */
.side-nav{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--side-w);
  background:var(--card);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  z-index:1045;
  transition:transform .3s var(--ease);
}
.side-brand{
  height:72px;
  flex:0 0 72px;
  display:flex;
  align-items:center;
  gap:10px;
  padding:0 20px;
  border-bottom:1px solid var(--line);
}
.brand-mark{
  width:34px;height:34px;
  flex:0 0 34px;
  border-radius:10px;
  background:var(--brand);
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:17px;
  letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text b{font-size:15px;color:var(--brand-d);font-weight:700;}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.04em;}

.nav-list{
  flex:1 1 auto;
  overflow-y:auto;
  padding:16px 12px;
  display:flex;
  flex-direction:column;
  gap:4px;
}
.nav-list::-webkit-scrollbar{width:6px;}
.nav-list::-webkit-scrollbar-thumb{background:var(--line-2);border-radius:6px;}
.nav-list::-webkit-scrollbar-track{background:transparent;}

.nav-link-i{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  height:44px;
  padding:0 14px;
  border-radius:10px;
  font-size:15px;
  color:var(--muted);
  transition:transform .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease);
}
.nav-link-i i{width:18px;font-size:15px;text-align:center;color:inherit;}
.nav-link-i:hover{background:var(--brand-l);color:var(--brand-d);transform:translateX(2px);}
.nav-link-i.active{background:var(--brand-l);color:var(--brand);font-weight:600;}
.nav-link-i.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:3px;background:var(--brand);
}

.side-foot{
  padding:16px;
  border-top:1px solid var(--line);
  display:flex;flex-direction:column;gap:10px;
}
.btn-block{width:100%;}
.side-contact{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:8px;word-break:break-all;}

.side-backdrop{
  position:fixed;inset:0;
  background:rgba(23,39,47,.45);
  opacity:0;visibility:hidden;
  transition:opacity .28s var(--ease),visibility .28s var(--ease);
  z-index:1040;
}
.side-backdrop.show{opacity:1;visibility:visible;}

/* ============ 移动端顶栏 ============ */
.topbar{
  display:none;
  align-items:center;
  justify-content:space-between;
  height:60px;
  padding:0 16px;
  background:var(--card);
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:1035;
  transition:box-shadow .22s var(--ease);
}
.topbar.scrolled{box-shadow:0 4px 16px rgba(23,39,47,.08);}
.topbar-brand{display:flex;align-items:center;gap:10px;font-size:15px;font-weight:700;color:var(--brand-d);}
.topbar-brand .brand-mark{width:30px;height:30px;flex:0 0 30px;border-radius:9px;font-size:15px;}
.hamburger{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  background:var(--brand-l);
  border:1px solid transparent;
  border-radius:10px;
  color:var(--brand);
  cursor:pointer;
  transition:background-color .22s var(--ease),color .22s var(--ease);
}
.hamburger:hover{background:#dbe9ef;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--r-btn);
  border:1.5px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .22s var(--ease),background-color .22s var(--ease),color .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.btn-primary{background:var(--accent);color:#fff;}
.btn-primary:hover{background:var(--accent-d);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(228,118,47,.26);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-outline{background:transparent;border-color:var(--brand);color:var(--brand);}
.btn-outline:hover{background:var(--brand-l);color:var(--brand-d);border-color:var(--brand-d);}
.btn-light{background:#fff;color:var(--brand);border-color:rgba(255,255,255,.75);}
.btn-light:hover{background:var(--brand-l);color:var(--brand-d);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.text-link{
  color:var(--brand);font-size:14px;font-weight:600;
  display:inline-flex;align-items:center;gap:6px;
}
.text-link:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}

/* ============ 页头 ============ */
.page-head{
  position:relative;
  padding:64px 0 60px;
  background:linear-gradient(180deg,#EAF3F7 0%,#F5F8FA 100%);
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-head::after{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center right;
  opacity:.10;
}
.page-head .container{position:relative;z-index:2;}
.crumbs{
  display:flex;align-items:center;gap:8px;
  font-size:14px;color:var(--muted);
  margin-bottom:18px;flex-wrap:wrap;
}
.crumbs a{color:var(--muted);}
.crumbs a:hover{color:var(--brand);}
.crumbs .sep{color:var(--line-2);}
.crumbs .cur{color:var(--text);font-weight:600;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--card);
  border:1px solid var(--line);
  color:var(--brand);
  font-size:12px;letter-spacing:.04em;font-weight:600;
  padding:5px 12px;border-radius:var(--r-pill);
  margin-bottom:16px;
}
.page-head h1{
  font-size:clamp(30px,3.4vw,46px);
  line-height:1.22;
  letter-spacing:.01em;
}
.page-head .lead{
  margin-top:16px;
  font-size:17px;
  color:var(--muted);
  max-width:640px;
  line-height:1.85;
}
.head-actions{margin-top:28px;display:flex;flex-wrap:wrap;gap:14px;}
.head-stats{
  margin-top:36px;
  display:flex;flex-wrap:wrap;gap:12px;
}
.stat-pill{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:8px 16px;
  font-size:14px;
  color:var(--muted);
  display:inline-flex;align-items:center;gap:8px;
}
.stat-pill b{color:var(--brand);font-size:16px;font-weight:700;}

/* ============ 板块 ============ */
.section{padding:88px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-head h2{
  font-size:clamp(24px,2.4vw,34px);
  line-height:1.3;
  position:relative;
  padding-left:16px;
}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;
  border-radius:4px;background:var(--brand);
}
.sec-head p{margin-top:12px;color:var(--muted);font-size:16px;}
.sec-head.center{text-align:center;margin-left:auto;margin-right:auto;}
.sec-head.center h2{padding-left:0;}
.sec-head.center h2::before{display:none;}

/* ============ 图文介绍 ============ */
.split-row{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);
  gap:48px;
  align-items:center;
}
.split-media{
  position:relative;
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  background:linear-gradient(135deg,#E8F1F5 0%,#E4F4F1 100%);
  aspect-ratio:4/3;
}
.split-media img{width:100%;height:100%;object-fit:cover;}
.split-media .media-cap{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 18px;
  background:linear-gradient(180deg,rgba(20,73,95,0) 0%,rgba(20,73,95,.78) 100%);
  color:#fff;font-size:13px;
}
.split-body h2{
  font-size:clamp(24px,2.4vw,32px);
  line-height:1.32;
  margin-bottom:16px;
}
.split-body p{color:var(--muted);margin-bottom:14px;}
.tick-list{display:flex;flex-direction:column;gap:12px;margin-top:22px;}
.tick-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text);}
.tick-list i{color:var(--teal);margin-top:6px;font-size:14px;}

/* ============ 数字清单 ============ */
.num-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.num-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:28px 26px;
  box-shadow:var(--sh-1);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.num-item:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:#cfe0e8;}
.num-item .num{
  display:inline-block;
  font-size:26px;font-weight:700;
  color:var(--brand);
  letter-spacing:.02em;
  margin-bottom:12px;
  font-variant-numeric:tabular-nums;
}
.num-item h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:8px;}
.num-item p{font-size:15px;color:var(--muted);}

/* ============ 行式列表 ============ */
.row-list{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.row-item{
  display:flex;
  gap:20px;
  padding:20px 24px;
  border-bottom:1px solid var(--line);
  color:inherit;
  transition:background-color .22s var(--ease);
}
.row-item:last-child{border-bottom:0;}
.row-item:hover{background:#FAFCFD;}
.row-thumb{
  flex:0 0 180px;
  width:180px;
  aspect-ratio:16/10;
  border-radius:var(--r-img);
  overflow:hidden;
  background:linear-gradient(135deg,#E8F1F5 0%,#E4F4F1 100%);
}
.row-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.row-item:hover .row-thumb img{transform:scale(1.04);}
.row-body{min-width:0;display:flex;flex-direction:column;gap:6px;}
.row-body h3{font-size:18px;line-height:1.45;font-weight:600;transition:color .22s var(--ease);}
.row-item:hover .row-body h3{color:var(--accent);}
.row-body p{font-size:14px;color:var(--muted);line-height:1.7;}
.row-meta{font-size:13px;color:var(--muted);display:flex;align-items:center;gap:10px;flex-wrap:wrap;}
.row-meta .dot{color:var(--line-2);}

/* ============ 标签 / 徽章 ============ */
.badge-soft{
  display:inline-flex;align-items:center;
  background:var(--brand-l);
  color:var(--brand);
  font-size:12px;letter-spacing:.04em;font-weight:600;
  padding:4px 10px;border-radius:var(--r-pill);
  align-self:flex-start;
}
.badge-soft.teal{background:var(--teal-l);color:#1F7A6E;}

/* ============ CTA 条 ============ */
.cta-band{
  background:linear-gradient(120deg,var(--brand) 0%,var(--brand-d) 100%);
  color:#fff;
  border-radius:0;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:clamp(22px,2.2vw,30px);line-height:1.35;}
.cta-inner p{color:rgba(255,255,255,.82);margin-top:10px;font-size:15px;max-width:560px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 底部固定转化条 ============ */
.float-cta{
  position:fixed;
  right:24px;bottom:24px;
  z-index:1030;
  display:flex;align-items:center;gap:14px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--r-pill);
  padding:8px 18px 8px 10px;
  box-shadow:var(--sh-1);
}
.float-cta .text-link{white-space:nowrap;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--bg);
  border-top:1px solid var(--line);
  padding:56px 0 24px;
  margin-top:auto;
}
.foot-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1fr;
  gap:32px;
}
.fb-top{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand p{font-size:14px;color:var(--muted);max-width:300px;}
.foot-contact{margin-top:16px;display:flex;flex-direction:column;gap:8px;font-size:13px;color:var(--muted);}
.foot-contact i{margin-right:6px;color:var(--brand);}
.foot-title{font-size:14px;font-weight:700;color:var(--text);margin-bottom:14px;}
.foot-links{display:flex;flex-direction:column;gap:8px;}
.foot-links a{font-size:14px;color:var(--muted);}
.foot-links a:hover{color:var(--brand);}
.foot-bottom{
  margin-top:36px;
  padding-top:18px;
  border-top:1px solid var(--line);
  display:flex;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--muted);
}

/* ============ 响应式 ============ */
@media (max-width:1399px){
  .container,.container-fluid{max-width:1160px;}
}
@media (max-width:1199px){
  :root{--side-w:216px;}
  .brand-text b{font-size:14px;}
  .nav-link-i{font-size:14px;padding:0 12px;}
  .split-row{gap:36px;}
}
@media (max-width:991px){
  .side-nav{transform:translateX(-100%);width:280px;box-shadow:var(--sh-2);}
  .side-nav.open{transform:translateX(0);}
  .main-wrap{margin-left:0;}
  .topbar{display:flex;}
  .section{padding:64px 0;}
  .page-head{padding:48px 0 44px;}
  .split-row{grid-template-columns:1fr;gap:28px;}
  .num-list{grid-template-columns:1fr;}
  .foot-grid{grid-template-columns:1fr 1fr;}
  body{padding-bottom:76px;}
  .float-cta{
    left:0;right:0;bottom:0;
    border-radius:0;
    border-left:0;border-right:0;border-bottom:0;
    justify-content:center;
    padding:10px 16px;
    box-shadow:0 -6px 20px rgba(23,39,47,.08);
  }
}
@media (max-width:767px){
  body{font-size:15.5px;}
  .section{padding:44px 0;}
  .sec-head{margin-bottom:28px;}
  .sec-head p{font-size:15px;}
  .row-item{flex-direction:column;gap:14px;padding:18px;}
  .row-thumb{flex:none;width:100%;aspect-ratio:16/9;}
  .head-actions .btn{flex:1 1 100%;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
  .cta-inner{gap:20px;}
  .page-head .lead{font-size:15.5px;}
}
@media (max-width:575px){
  .container,.container-fluid{padding-left:16px;padding-right:16px;}
  .page-head{padding:36px 0 32px;}
  .foot-grid{grid-template-columns:1fr;gap:26px;}
  .stat-pill{font-size:13px;padding:7px 13px;}
  .float-cta{padding:8px 12px;gap:10px;}
  .float-cta .btn{padding:0 16px;min-height:40px;font-size:14px;}
  .foot-bottom{flex-direction:column;}
}

/* roulang page: category2 */
:root{
  --brand:#1B5E7E;
  --brand-dark:#14495F;
  --brand-light:#E8F1F5;
  --accent:#2E9E8F;
  --cta:#E4762F;
  --cta-dark:#CE6823;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --line:#E2E9ED;
  --text:#17272F;
  --muted:#5B6E78;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow:0 1px 2px rgba(23,39,47,.04),0 8px 24px rgba(23,39,47,.06);
  --shadow-hover:0 12px 32px rgba(23,39,47,.10);
  --ease:.22s cubic-bezier(.2,.7,.3,1);
  --sb-w:248px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -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(--cta);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;box-shadow:0 0 0 4px rgba(27,94,126,.12);}
.num{font-variant-numeric:tabular-nums;}

.container{
  --bs-gutter-x:24px;
  width:100%;
  max-width:1160px;
  padding-right:calc(var(--bs-gutter-x) * .5);
  padding-left:calc(var(--bs-gutter-x) * .5);
  margin-right:auto;
  margin-left:auto;
}
@media (min-width:576px){.container{max-width:1160px;}}
@media (min-width:768px){.container{max-width:1160px;}}
@media (min-width:992px){.container{max-width:1160px;}}
@media (min-width:1200px){.container{max-width:1160px;}}
@media (min-width:1400px){.container{max-width:1160px;}}

/* ---------- 布局骨架 ---------- */
.layout{display:flex;align-items:flex-start;min-height:100vh;}
.main-wrap{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;min-height:100vh;}
main{flex:1 1 auto;}

/* ---------- 左侧竖向导航 ---------- */
.sidebar{
  width:var(--sb-w);
  flex:0 0 var(--sb-w);
  position:sticky;
  top:0;
  height:100vh;
  background:var(--card);
  border-right:1px solid var(--line);
  z-index:1030;
}
.sidebar-inner{
  height:100%;
  overflow-y:auto;
  display:flex;
  flex-direction:column;
  padding:0 16px 20px;
  scrollbar-width:thin;
}
.sidebar-inner::-webkit-scrollbar{width:6px;}
.sidebar-inner::-webkit-scrollbar-thumb{background:#CFDDE4;border-radius:6px;}
.brand{
  height:72px;
  display:flex;
  align-items:center;
  gap:10px;
  padding:0 4px;
  margin:0 -16px 16px;
  padding-left:20px;
  border-bottom:1px solid var(--line);
  flex:0 0 auto;
}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand);
  color:#fff;
  border-radius:10px;
  font-weight:700;
  font-size:17px;
  letter-spacing:.02em;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0;}
.brand-text b{font-size:15px;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.brand-text i{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.04em;}

.nav-list{display:flex;flex-direction:column;gap:4px;margin:0;}
.nav-link-i{
  position:relative;
  display:flex;
  align-items:center;
  gap:12px;
  height:44px;
  padding:0 14px;
  border-radius:var(--radius-btn);
  color:var(--muted);
  font-size:15px;
  text-decoration:none;
  transition:background var(--ease),color var(--ease),transform var(--ease);
}
.nav-link-i i{width:18px;flex:0 0 18px;text-align:center;font-size:15px;color:var(--brand);opacity:.85;}
.nav-link-i span{white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.nav-link-i:hover{background:var(--brand-light);color:var(--brand);transform:translateX(2px);text-decoration:none;}
.nav-link-i.active{background:var(--brand-light);color:var(--brand);font-weight:600;}
.nav-link-i.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:3px;background:var(--brand);
}
.sidebar-foot{margin-top:auto;padding-top:20px;display:flex;flex-direction:column;gap:12px;}
.side-contact{font-size:13px;line-height:1.7;color:var(--muted);margin:0;}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost,.btn-soft{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1;
  border:1.5px solid transparent;
  cursor:pointer;
  text-decoration:none;
  transition:background var(--ease),color var(--ease),border-color var(--ease),transform var(--ease),box-shadow var(--ease);
}
.btn-main{background:var(--cta);color:#fff;border-color:var(--cta);}
.btn-main:hover{background:var(--cta-dark);border-color:var(--cta-dark);color:#fff;text-decoration:none;transform:translateY(-2px);box-shadow:0 10px 22px rgba(228,118,47,.24);}
.btn-main:active{transform:translateY(1px);box-shadow:none;}
.btn-ghost{background:transparent;color:var(--brand);border-color:var(--brand);}
.btn-ghost:hover{background:var(--brand-light);color:var(--brand-dark);text-decoration:none;transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(1px);}
.btn-soft{background:#fff;color:var(--brand);border-color:var(--line);font-weight:500;}
.btn-soft:hover{background:var(--brand-light);border-color:var(--brand-light);color:var(--brand-dark);text-decoration:none;}
.w-100{width:100%;}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;
  position:sticky;
  top:0;
  z-index:1040;
  height:60px;
  background:#fff;
  border-bottom:1px solid var(--line);
  align-items:center;
  justify-content:space-between;
  padding:0 16px;
}
.topbar.scrolled{box-shadow:0 6px 18px rgba(23,39,47,.08);}
.brand-mini{display:flex;align-items:center;gap:9px;color:var(--text);text-decoration:none;}
.brand-mini b{font-size:15px;}
.hamburger{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--brand-light);
  color:var(--brand);
  border:1px solid transparent;
  border-radius:var(--radius-btn);
  font-size:17px;
  cursor:pointer;
  transition:background var(--ease),color var(--ease);
}
.hamburger:hover{background:var(--brand);color:#fff;}

.offcanvas{--bs-offcanvas-width:288px;border-right:1px solid var(--line);}
.offcanvas-header{border-bottom:1px solid var(--line);padding:16px 20px;}
.offcanvas-body{padding:18px 16px;display:flex;flex-direction:column;gap:18px;}
.offcanvas .brand-text b{font-size:16px;}

/* ---------- 面包屑 ---------- */
.crumb-bar{padding:24px 0 0;font-size:14px;color:var(--muted);}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;color:var(--muted);}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--brand);}
.crumb .sep{color:#B7C6CE;}
.crumb .cur{color:var(--text);font-weight:600;}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0;}
.section-alt{background:#fff;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.sec-head{max-width:720px;margin-bottom:44px;}
.sec-title{font-size:clamp(24px,2.4vw,34px);line-height:1.3;font-weight:700;letter-spacing:-.01em;}
.sec-title::before{
  content:"";display:inline-block;width:4px;height:.82em;background:var(--brand);
  border-radius:2px;margin-right:12px;vertical-align:-.06em;
}
.sec-title.center::before{display:none;}
.sec-sub{color:var(--muted);font-size:16px;margin-top:12px;max-width:660px;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  padding:56px 0 72px;
  background:
    repeating-linear-gradient(0deg,rgba(27,94,126,.035) 0 1px,transparent 1px 34px),
    repeating-linear-gradient(90deg,rgba(27,94,126,.035) 0 1px,transparent 1px 34px),
    linear-gradient(180deg,#F8FBFC 0%,var(--bg) 100%);
  border-bottom:1px solid var(--line);
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand-light);color:var(--brand);
  font-size:12px;letter-spacing:.04em;font-weight:600;
  padding:5px 14px;border-radius:999px;margin-bottom:20px;
}
.hero h1{font-size:clamp(30px,3.4vw,46px);line-height:1.22;font-weight:700;letter-spacing:-.015em;}
.hero .lead{margin-top:18px;font-size:17px;line-height:1.8;color:var(--muted);max-width:520px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.trust-row{
  display:flex;flex-wrap:wrap;gap:34px;margin-top:38px;
  padding-top:26px;border-top:1px solid var(--line);
}
.trust-item{display:flex;flex-direction:column;gap:2px;min-width:96px;}
.trust-item .v{font-size:26px;font-weight:700;color:var(--brand);line-height:1.2;}
.trust-item .v small{font-size:14px;font-weight:600;margin-left:2px;}
.trust-item .k{font-size:13px;color:var(--muted);}

.img-frame{
  position:relative;
  border-radius:var(--radius-img);
  overflow:hidden;
  background:linear-gradient(135deg,#E8F1F5 0%,#F5F8FA 100%);
  border:1px solid var(--line);
}
.img-frame img{width:100%;height:100%;object-fit:cover;}
.img-frame.is-empty::after{
  content:attr(data-ph);
  position:absolute;inset:0;
  display:flex;align-items:center;justify-content:center;
  color:var(--muted);font-size:14px;text-align:center;padding:12px;
}
.hero-media{aspect-ratio:4/3;box-shadow:var(--shadow);border-radius:var(--radius-card);}
.hero-media figcaption{
  position:absolute;left:14px;bottom:14px;
  background:rgba(255,255,255,.92);
  color:var(--brand-dark);
  font-size:12px;letter-spacing:.04em;
  padding:5px 12px;border-radius:999px;
}

/* ---------- 图文交替 ---------- */
.split{display:grid;grid-template-columns:1fr 1fr;gap:64px;align-items:center;}
.split.reverse .split-media{order:2;}
.split-body p{color:var(--muted);margin-top:16px;}
.split-body p:first-of-type{margin-top:20px;}
.split-media{aspect-ratio:16/10;box-shadow:var(--shadow);border-radius:var(--radius-card);}
.check-list{margin-top:24px;display:flex;flex-direction:column;gap:14px;}
.check-list li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text);}
.check-list li i{color:var(--accent);font-size:15px;margin-top:5px;flex:0 0 18px;text-align:center;}
.check-list li b{font-weight:600;}

/* ---------- 2+1 错落卡片 ---------- */
.mix-grid{display:grid;grid-template-columns:1.22fr .88fr;gap:24px;}
.card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
  overflow:hidden;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:#D3E0E7;}
.mix-main{padding:0 0 30px;display:flex;flex-direction:column;}
.mix-main .img-frame{aspect-ratio:16/9;border:0;border-bottom:1px solid var(--line);border-radius:0;}
.mix-main .mix-body{padding:26px 30px 0;}
.mix-main h3{font-size:22px;font-weight:600;line-height:1.4;}
.mix-main p{color:var(--muted);margin-top:12px;}
.mix-side{display:flex;flex-direction:column;gap:24px;}
.mix-side .card{padding:22px 24px;display:flex;gap:18px;align-items:flex-start;}
.mix-side .thumb{width:96px;height:88px;flex:0 0 96px;border-radius:10px;aspect-ratio:auto;}
.mix-side h3{font-size:18px;font-weight:600;line-height:1.45;}
.mix-side p{color:var(--muted);font-size:14px;line-height:1.75;margin-top:6px;}
.mix-tag{
  display:inline-block;font-size:12px;letter-spacing:.04em;font-weight:600;
  color:var(--brand);background:var(--brand-light);
  padding:4px 10px;border-radius:999px;margin-bottom:10px;
}
.mix-tag.teal{color:#20776B;background:#E4F4F1;}

/* ---------- 指标带 ---------- */
.stats{
  background:var(--brand);
  border-radius:var(--radius-card);
  padding:42px 36px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:28px;
  color:#fff;
}
.stat-item{text-align:left;border-left:1px solid rgba(255,255,255,.22);padding-left:22px;}
.stat-item:first-child{border-left:0;padding-left:0;}
.stat-item .v{font-size:32px;font-weight:700;line-height:1.2;}
.stat-item .v small{font-size:14px;font-weight:500;margin-left:3px;opacity:.85;}
.stat-item .k{font-size:13px;opacity:.82;margin-top:4px;letter-spacing:.04em;}

/* ---------- FAQ ---------- */
.faq{max-width:840px;}
.faq .accordion-item{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  margin-bottom:12px;
  overflow:hidden;
  box-shadow:var(--shadow);
}
.faq .accordion-button{
  position:relative;
  background:#fff;
  color:var(--text);
  font-size:16px;
  font-weight:600;
  line-height:1.6;
  padding:18px 56px 18px 20px;
  box-shadow:none;
  border-radius:0;
}
.faq .accordion-button:not(.collapsed){background:var(--brand-light);color:var(--brand);}
.faq .accordion-button:hover{background:var(--brand-light);}
.faq .accordion-button:focus{box-shadow:none;border-color:transparent;}
.faq .accordion-button::after{display:none;}
.faq .pm{position:absolute;right:20px;top:50%;width:16px;height:16px;transform:translateY(-50%);}
.faq .pm::before,.faq .pm::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--brand);
  transform:translate(-50%,-50%);border-radius:2px;
}
.faq .pm::before{width:14px;height:1.5px;}
.faq .pm::after{width:1.5px;height:14px;transition:transform var(--ease);}
.faq .accordion-button:not(.collapsed) .pm::after{transform:translate(-50%,-50%) scaleY(0);}
.faq .accordion-body{padding:4px 20px 22px;font-size:15px;line-height:1.85;color:var(--muted);}
.faq .accordion-button:not(.collapsed) + .accordion-collapse .accordion-body{border-left:3px solid var(--brand);}

/* ---------- CTA ---------- */
.cta-band{
  background:#fff;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow);
  padding:48px;
  display:grid;
  grid-template-columns:1.4fr .9fr;
  gap:36px;
  align-items:center;
}
.cta-band h2{font-size:clamp(22px,2.1vw,30px);line-height:1.35;font-weight:700;}
.cta-band p{color:var(--muted);margin-top:14px;max-width:560px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end;}
.back-links{
  margin-top:28px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 26px;font-size:14px;
}
.back-links a{color:var(--muted);display:inline-flex;align-items:center;gap:7px;}
.back-links a:hover{color:var(--brand);}
.back-links i{font-size:12px;color:var(--brand);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--bg);border-top:1px solid var(--line);margin-top:0;padding:56px 0 26px;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
.foot-brand .fb-top{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand p{font-size:14px;color:var(--muted);max-width:300px;margin:0;}
.foot-contact{margin-top:16px;display:flex;flex-direction:column;gap:8px;font-size:14px;color:var(--muted);}
.foot-contact i{color:var(--brand);margin-right:8px;}
.foot-title{font-size:15px;font-weight:600;color:var(--text);margin-bottom:14px;}
.foot-links{display:flex;flex-direction:column;gap:10px;}
.foot-links a{font-size:14px;color:var(--muted);}
.foot-links a:hover{color:var(--brand);}
.foot-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:var(--muted);
}

/* ---------- 底部转化条 ---------- */
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1050;
  display:flex;align-items:center;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:999px;
  padding:10px 14px 10px 22px;
  box-shadow:var(--shadow);
}
.float-cta .tip{font-size:14px;color:var(--muted);}
.float-cta .btn-main{min-height:40px;padding:0 18px;font-size:14px;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .hero-grid{gap:36px;}
  .split{gap:44px;}
  .cta-band{padding:40px;grid-template-columns:1fr;}
  .cta-actions{justify-content:flex-start;}
}
@media (max-width:991.98px){
  .sidebar{display:none;}
  .topbar{display:flex;}
  .section{padding:64px 0;}
  .hero{padding:40px 0 56px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-media{aspect-ratio:16/9;}
  .split{grid-template-columns:1fr;gap:28px;}
  .split.reverse .split-media{order:0;}
  .split-media{aspect-ratio:16/9;}
  .mix-grid{grid-template-columns:1fr;}
  .stats{grid-template-columns:repeat(2,1fr);padding:32px 26px;gap:24px;}
  .stat-item:nth-child(3){border-left:0;padding-left:0;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767.98px){
  body{padding-bottom:86px;}
  .section{padding:44px 0;}
  .sec-head{margin-bottom:30px;}
  .trust-row{gap:22px;}
  .trust-item{min-width:44%;}
  .float-cta{
    left:0;right:0;bottom:0;border-radius:0;border-left:0;border-right:0;border-bottom:0;
    padding:10px 16px;justify-content:space-between;gap:10px;
  }
  .float-cta .tip{font-size:13px;}
  .float-cta .btn-main{flex:0 0 auto;}
  .card:hover{transform:none;}
  .mix-side .card{flex-direction:column;gap:14px;}
  .mix-side .thumb{width:100%;flex:none;height:auto;aspect-ratio:16/9;}
  .cta-band{padding:28px 22px;}
}
@media (max-width:575.98px){
  body{font-size:15px;}
  .hero h1{font-size:28px;}
  .stats{grid-template-columns:1fr;gap:20px;padding:28px 22px;}
  .stat-item{border-left:0;padding-left:0;border-top:1px solid rgba(255,255,255,.22);padding-top:16px;}
  .stat-item:first-child{border-top:0;padding-top:0;}
  .foot-grid{grid-template-columns:1fr;gap:26px;}
  .float-cta .tip{display:none;}
  .float-cta{justify-content:center;}
  .float-cta .btn-main{width:100%;}
  .back-links{flex-direction:column;gap:12px;}
}

/* roulang page: category3 */
:root{
  --primary:#1B5E7E;
  --primary-d:#14495F;
  --primary-l:#E8F1F5;
  --accent:#2E9E8F;
  --accent-l:#E4F4F1;
  --warm:#E4762F;
  --warm-d:#C9621F;
  --bg:#F5F8FA;
  --card:#FFFFFF;
  --line:#E2E9ED;
  --text:#17272F;
  --muted:#5B6E78;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh:0 1px 2px rgba(23,39,47,.04), 0 8px 24px rgba(23,39,47,.06);
  --sh-h:0 12px 32px rgba(23,39,47,.10);
  --tr:.22s cubic-bezier(.2,.7,.3,1);
  --bs-body-font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Noto Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  padding-bottom:0;
}
img{max-width:100%;display:block;border-radius:var(--r-img);}
a{color:var(--primary);text-decoration:none;transition:var(--tr);}
a:hover{color:var(--warm);}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--text);}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;box-shadow:0 0 0 4px rgba(27,94,126,.12);}

.container{width:100%;max-width:1160px;margin:0 auto;padding-left:24px;padding-right:24px;}

/* 布局 */
.layout{display:flex;min-height:100vh;align-items:flex-start;}
.sidebar{
  width:248px;flex:0 0 248px;background:#fff;border-right:1px solid var(--line);
  position:sticky;top:0;height:100vh;display:flex;flex-direction:column;
  overflow-y:auto;overflow-x:hidden;z-index:30;
}
.sidebar::-webkit-scrollbar{width:6px;}
.sidebar::-webkit-scrollbar-thumb{background:#D5E0E6;border-radius:999px;}
.side-brand{height:72px;display:flex;align-items:center;padding:0 18px;border-bottom:1px solid var(--line);}
.sb-link{display:flex;align-items:center;gap:10px;color:var(--text);}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;border-radius:9px;
  background:linear-gradient(140deg,var(--primary),var(--accent));
  color:#fff;font-weight:700;font-size:16px;display:flex;align-items:center;justify-content:center;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;min-width:0;}
.brand-text b{font-size:14px;font-weight:700;color:var(--text);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
.brand-text i{font-style:normal;font-size:12px;color:var(--muted);}
.nav-list{display:flex;flex-direction:column;gap:4px;padding:16px 12px;flex:1 1 auto;}
.nav-link-i{
  display:flex;align-items:center;gap:10px;min-height:44px;padding:0 12px;border-radius:10px;
  font-size:15px;color:var(--text);border-left:3px solid transparent;position:relative;
}
.nav-link-i i{font-size:16px;width:18px;text-align:center;color:var(--muted);transition:var(--tr);}
.nav-link-i span{white-space:nowrap;}
.nav-link-i:hover{background:var(--primary-l);color:var(--primary);transform:translateX(2px);}
.nav-link-i:hover i{color:var(--primary);}
.nav-link-i.active{background:var(--primary-l);color:var(--primary);border-left:3px solid var(--primary);font-weight:600;}
.nav-link-i.active i{color:var(--primary);}
.side-foot{margin-top:auto;padding:16px 18px 22px;border-top:1px solid var(--line);}
.side-contact{font-size:13px;color:var(--muted);margin-top:10px;display:flex;align-items:flex-start;gap:8px;line-height:1.6;}
.side-contact i{margin-top:4px;color:var(--accent);}

.main{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;}

/* 按钮 */
.btn-main,.btn-line{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1.5px solid transparent;cursor:pointer;transition:var(--tr);white-space:nowrap;
}
.btn-main{background:var(--warm);color:#fff;border-color:var(--warm);box-shadow:0 6px 16px rgba(228,118,47,.22);}
.btn-main:hover{background:var(--warm-d);border-color:var(--warm-d);color:#fff;transform:translateY(-2px);box-shadow:0 10px 22px rgba(228,118,47,.28);}
.btn-main:active{transform:translateY(1px);}
.btn-line{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-line:hover{background:var(--primary-l);color:var(--primary-d);border-color:var(--primary-d);}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;width:100%;}
.text-link{color:var(--primary);font-weight:600;border-bottom:1px solid transparent;}
.text-link:hover{color:var(--warm);border-bottom-color:var(--warm);}

/* 移动端顶栏 */
.mobile-bar{
  display:none;height:60px;background:#fff;border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;padding:0 16px;position:sticky;top:0;z-index:40;
}
.mb-brand{display:flex;align-items:center;gap:9px;color:var(--text);font-size:15px;font-weight:700;}
.mb-toggle{
  width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:10px;
  color:var(--primary);font-size:17px;display:flex;align-items:center;justify-content:center;cursor:pointer;
}
.mb-toggle:hover{background:var(--primary-l);}
.drawer{width:280px !important;border-right:1px solid var(--line);}
.drawer .offcanvas-header{border-bottom:1px solid var(--line);padding:14px 18px;min-height:72px;}
.drawer .offcanvas-body{padding:0;}
.drawer .brand-text b{font-size:14px;}
.drawer .btn-close{font-size:12px;}

/* 面包屑 */
.breadcrumb-bar{padding:22px 0 0;}
.bc-list{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);}
.bc-list li{display:flex;align-items:center;gap:8px;}
.bc-list li+li::before{content:"/";color:#B7C5CD;}
.bc-list a{color:var(--muted);}
.bc-list a:hover{color:var(--primary);}
.bc-list .current{color:var(--text);font-weight:600;}

/* 内页 Hero */
.page-hero{padding:34px 0 0;}
.hero-inner{
  display:grid;grid-template-columns:1.08fr .92fr;gap:40px;align-items:center;
  background:
    radial-gradient(900px 320px at 8% -10%, rgba(46,158,143,.10), transparent 62%),
    linear-gradient(120deg,#EAF3F7 0%, #F5F8FA 60%, #FFFFFF 100%);
  border:1px solid var(--line);border-radius:18px;padding:44px 44px;box-shadow:var(--sh);
  position:relative;overflow:hidden;
}
.hero-inner::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.5;
  background-image:linear-gradient(rgba(27,94,126,.05) 1px, transparent 1px),linear-gradient(90deg, rgba(27,94,126,.05) 1px, transparent 1px);
  background-size:38px 38px;mask-image:linear-gradient(120deg, rgba(0,0,0,.6), transparent 70%);
}
.hero-text{position:relative;z-index:2;}
.tag{
  display:inline-block;background:var(--primary-l);color:var(--primary);font-size:12px;
  letter-spacing:.04em;padding:5px 12px;border-radius:999px;margin-bottom:14px;font-weight:600;
}
.page-hero h1{font-size:clamp(28px,3.1vw,42px);line-height:1.24;font-weight:700;letter-spacing:-.2px;}
.lead{font-size:17px;color:var(--muted);margin-top:14px;line-height:1.8;max-width:520px;}
.hero-act{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.hero-media{position:relative;z-index:2;border-radius:var(--r-card);overflow:hidden;box-shadow:0 14px 34px rgba(20,73,95,.16);background:linear-gradient(135deg,#DCE9EF,#EFF5F8);}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-card);}

/* 板块 */
.section{padding:76px 0 0;}
.section:last-of-type{padding-bottom:84px;}
.section-body{padding:24px 0 0;}
.section-head{max-width:720px;margin-bottom:34px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-title{font-size:clamp(23px,2.3vw,32px);line-height:1.3;position:relative;padding-left:16px;}
.sec-title::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:4px;border-radius:4px;background:var(--primary);}
.sec-title.center-line{padding-left:0;display:inline-block;}
.sec-title.center-line::before{display:none;}
.sec-sub{color:var(--muted);font-size:15px;margin-top:12px;line-height:1.8;}

/* 数据指标带 */
.stats-band{padding:68px 0 0;}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;
  background:linear-gradient(105deg,#173E52 0%, #1B5E7E 55%, #236E8C 100%);
  border-radius:16px;overflow:hidden;box-shadow:0 16px 36px rgba(20,73,95,.16);
}
.stat{padding:32px 26px;border-right:1px solid rgba(255,255,255,.14);}
.stat:last-child{border-right:none;}
.stat-num{font-size:clamp(26px,2.6vw,36px);font-weight:700;color:#fff;font-variant-numeric:tabular-nums;line-height:1.15;}
.stat-num i{font-style:normal;font-size:14px;font-weight:600;color:#BEE0EA;margin-left:5px;}
.stat-label{font-size:14px;color:#CFE3EA;margin-top:8px;line-height:1.7;}

/* 时间轴 */
.timeline{position:relative;padding-left:34px;}
.timeline::before{content:"";position:absolute;left:15px;top:8px;bottom:8px;width:2px;background:linear-gradient(180deg,var(--primary),#BFD6E0);border-radius:2px;}
.tl-item{position:relative;padding:0 0 28px 0;}
.tl-item:last-child{padding-bottom:0;}
.tl-dot{
  position:absolute;left:-34px;top:2px;width:32px;height:32px;border-radius:50%;
  background:#fff;border:2px solid var(--primary);color:var(--primary);
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;z-index:2;
}
.tl-item:nth-child(even) .tl-dot{border-color:var(--accent);color:var(--accent);}
.tl-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--sh);transition:var(--tr);
}
.tl-body:hover{box-shadow:var(--sh-h);transform:translateY(-3px);border-color:#D2E0E8;}
.tl-title{font-size:18px;font-weight:700;margin-bottom:8px;}
.tl-text{font-size:15px;color:var(--muted);line-height:1.85;}
.tl-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.chip{
  display:inline-block;background:var(--accent-l);color:#217A6E;font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:999px;letter-spacing:.02em;
}
.chip.blue{background:var(--primary-l);color:var(--primary);}

/* 图文准备清单 */
.prep-grid{display:grid;grid-template-columns:.95fr 1.05fr;gap:44px;align-items:center;}
.prep-media{background:linear-gradient(135deg,#DCE9EF,#F3F8FA);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh);}
.prep-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-card);}
.prep-list{display:flex;flex-direction:column;gap:14px;margin-top:26px;}
.prep-item{display:flex;gap:14px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:16px 18px;transition:var(--tr);}
.prep-item:hover{box-shadow:var(--sh-h);transform:translateY(-3px);}
.prep-item .num{
  flex:0 0 30px;width:30px;height:30px;border-radius:9px;background:var(--primary-l);color:var(--primary);
  font-size:13px;font-weight:700;display:flex;align-items:center;justify-content:center;font-variant-numeric:tabular-nums;
}
.prep-item h4{font-size:15px;font-weight:700;margin-bottom:3px;}
.prep-item p{font-size:14px;color:var(--muted);line-height:1.75;}

/* FAQ */
.k-acc{border-radius:var(--r-card);overflow:hidden;background:#fff;border:1px solid var(--line);box-shadow:var(--sh);}
.k-acc .accordion-item{border:none;border-bottom:1px solid var(--line);background:#fff;}
.k-acc .accordion-item:last-child{border-bottom:none;}
.k-acc .accordion-button{
  font-size:16px;font-weight:600;color:var(--text);background:#fff;
  padding:19px 56px 19px 20px;box-shadow:none;border-left:3px solid transparent;transition:var(--tr);
}
.k-acc .accordion-button::after{display:none;}
.k-acc .accordion-button::before{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--primary);line-height:1;
}
.k-acc .accordion-button:not(.collapsed)::before{content:"−";}
.k-acc .accordion-button:not(.collapsed){background:var(--primary-l);color:var(--primary-d);border-left:3px solid var(--primary);}
.k-acc .accordion-button:hover{background:var(--primary-l);}
.k-acc .accordion-button:focus{box-shadow:none;}
.k-acc .accordion-body{font-size:15px;color:var(--muted);line-height:1.85;padding:4px 24px 22px 23px;background:#fff;}

/* 表单 */
.form-wrap{
  background:#fff;border:1px solid var(--line);border-radius:18px;padding:38px 40px;box-shadow:var(--sh);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px 22px;margin-top:26px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field.full{grid-column:1 / -1;}
.field label{font-size:14px;font-weight:600;color:var(--text);}
.form-control,.form-select{
  border:1px solid #D8E2E8;border-radius:var(--r-btn);min-height:46px;font-size:15px;
  color:var(--text);background:#fff;padding:10px 14px;transition:var(--tr);
}
.form-control::placeholder{color:#93A6B0;}
.form-control:focus,.form-select:focus{border-color:var(--primary);box-shadow:0 0 0 4px rgba(27,94,126,.12);}
textarea.form-control{min-height:130px;line-height:1.75;resize:vertical;}
.form-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;margin-top:26px;padding-top:22px;border-top:1px solid var(--line);}
.form-tip{font-size:13px;color:var(--muted);max-width:520px;line-height:1.7;}

/* CTA 条 */
.cta-strip{
  margin-top:76px;background:linear-gradient(105deg,#173E52,#1B5E7E 60%,#2E9E8F 130%);
  border-radius:18px;padding:40px 44px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  box-shadow:0 16px 36px rgba(20,73,95,.18);
}
.cta-strip h2{color:#fff;font-size:clamp(20px,2vw,26px);}
.cta-strip p{color:#CBE0E9;font-size:15px;margin-top:8px;line-height:1.8;max-width:600px;}
.cta-act{display:flex;gap:14px;flex-wrap:wrap;}
.cta-act .btn-main{box-shadow:0 8px 20px rgba(228,118,47,.3);}
.cta-act .btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;min-height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;color:#fff;border:1.5px solid rgba(255,255,255,.55);transition:var(--tr);
}
.cta-act .btn-ghost:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;}

/* 页脚 */
.site-footer{margin-top:84px;background:#F5F8FA;border-top:1px solid var(--line);padding:56px 0 0;}
.foot-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px;}
.fb-top{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.foot-brand p{font-size:14px;color:var(--muted);line-height:1.8;max-width:320px;}
.foot-contact{display:flex;flex-direction:column;gap:8px;margin-top:16px;font-size:14px;color:var(--muted);}
.foot-contact i{color:var(--accent);margin-right:7px;}
.foot-title{font-size:15px;font-weight:700;color:var(--text);margin-bottom:14px;}
.foot-links{display:flex;flex-direction:column;gap:10px;}
.foot-links a{font-size:14px;color:var(--muted);}
.foot-links a:hover{color:var(--primary);}
.foot-bottom{
  margin-top:44px;border-top:1px solid var(--line);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;font-size:13px;color:var(--muted);
}

/* 底部固定转化条 */
.dock{
  position:fixed;right:24px;bottom:24px;z-index:60;display:flex;align-items:center;gap:14px;
  background:#fff;border:1px solid var(--line);border-radius:999px;padding:10px 12px 10px 20px;
  box-shadow:0 12px 34px rgba(23,39,47,.14);
}
.dock-link{font-size:14px;font-weight:600;color:var(--primary);}
.dock-link:hover{color:var(--warm);}

/* 响应式 */
@media (max-width:1399.98px){
  .container{max-width:1080px;}
}
@media (max-width:1199.98px){
  .sidebar{width:96px;flex:0 0 96px;}
  .side-brand{justify-content:center;padding:0;}
  .brand-text{display:none;}
  .nav-list{padding:14px 8px;}
  .nav-link-i{flex-direction:column;gap:4px;min-height:60px;justify-content:center;padding:6px 4px;border-left-width:0;border-radius:10px;}
  .nav-link-i span{font-size:12px;white-space:normal;text-align:center;line-height:1.3;}
  .nav-link-i:hover{transform:none;}
  .nav-link-i.active{border-left:0;box-shadow:inset 0 0 0 1.5px var(--primary);}
  .side-foot{padding:14px 8px 18px;}
  .side-foot .btn-main{font-size:12px;padding:0 6px;}
  .side-contact{justify-content:center;font-size:12px;}
  .side-contact span.txt{display:none;}
}
@media (max-width:991.98px){
  .sidebar{display:none;}
  .mobile-bar{display:flex;}
  .page-hero{padding-top:24px;}
  .hero-inner{grid-template-columns:1fr;gap:26px;padding:32px 26px;}
  .hero-media{order:-1;}
  .hero-media img{aspect-ratio:16/9;}
  .section{padding-top:56px;}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(2){border-right:none;}
  .stat:nth-child(1),.stat:nth-child(2){border-bottom:1px solid rgba(255,255,255,.14);}
  .prep-grid{grid-template-columns:1fr;gap:28px;}
  .foot-grid{grid-template-columns:1fr 1fr;gap:30px;}
  .cta-strip{padding:32px 28px;}
  .form-wrap{padding:28px 24px;}
  .section:last-of-type{padding-bottom:180px;}
}
@media (max-width:767.98px){
  body{font-size:15px;}
  .container{padding-left:18px;padding-right:18px;}
  .hero-act .btn-main,.hero-act .btn-line{flex:1 1 100%;}
  .stat{padding:24px 20px;}
  .timeline{padding-left:28px;}
  .timeline::before{left:13px;}
  .tl-dot{left:-28px;width:28px;height:28px;font-size:12px;}
  .cta-act{width:100%;}
  .cta-act .btn-main,.cta-act .btn-ghost{flex:1 1 100%;}
  .foot-bottom{flex-direction:column;}
  .dock{
    left:0;right:0;bottom:0;border-radius:0;border-left:none;border-right:none;border-bottom:none;
    padding:10px 16px;justify-content:space-between;gap:10px;
  }
  .dock .btn-main{flex:1 1 auto;}
  .dock-link{font-size:13px;white-space:nowrap;}
  .section:last-of-type{padding-bottom:150px;}
}
@media (max-width:575.98px){
  .stat-grid{grid-template-columns:1fr;}
  .stat{border-right:none;border-bottom:1px solid rgba(255,255,255,.14);}
  .stat:last-child{border-bottom:none;}
  .foot-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .form-foot{flex-direction:column;align-items:stretch;}
  .form-foot .btn-main{width:100%;}
  .hero-inner{padding:26px 20px;}
  .tl-body{padding:18px 18px;}
}