/* roulang page: index */
:root{
  --xk-deep:#0C2A2B;
  --xk-deep-2:#123638;
  --xk-primary:#12857C;
  --xk-primary-600:#0E6B64;
  --xk-primary-100:#E3F1EF;
  --xk-accent:#E07A5F;
  --xk-accent-600:#C96448;
  --xk-paper:#F7F4EE;
  --xk-paper-2:#EDF2F0;
  --xk-ink:#14201F;
  --xk-ink-2:#2B3A39;
  --xk-muted:#6B7C7A;
  --xk-line:#DCE5E2;
  --xk-star:#F2C879;
  --xk-white:#FFFFFF;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,42,43,.05);
  --sh-2:0 10px 24px rgba(12,42,43,.10);
  --sh-3:0 18px 40px rgba(12,42,43,.14);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",ui-monospace,monospace;
  --gutter:24px;
  --sec-y:88px;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  color:var(--xk-ink-2);
  background:var(--xk-paper);
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--xk-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--xk-primary-600);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:2px solid var(--xk-primary);outline-offset:2px;}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:var(--gutter);
  padding-right:var(--gutter);
}

/* ============ 按钮 ============ */
.btn-xk{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 26px;
  border-radius:10px;
  font-size:16px;
  font-weight:600;
  line-height:1;
  border:1px solid transparent;
  cursor:pointer;
  transition:background-color .18s ease,color .18s ease,box-shadow .18s ease,transform .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-xk-primary{
  background:var(--xk-accent);
  color:#fff;
  box-shadow:var(--sh-1);
}
.btn-xk-primary:hover{
  background:var(--xk-accent-600);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--sh-2);
}
.btn-xk-primary:active{transform:translateY(0);box-shadow:var(--sh-1);}
.btn-xk-ghost{
  background:transparent;
  color:var(--xk-primary);
  border-color:var(--xk-primary);
}
.btn-xk-ghost:hover{
  background:rgba(18,133,124,.08);
  color:var(--xk-primary-600);
}
.btn-xk-sm{height:40px;padding:0 18px;font-size:15px;}
.btn-xk-block{width:100%;}
.btn-xk:disabled{opacity:.5;transform:none;cursor:not-allowed;}

.link-xk{
  color:var(--xk-primary);
  text-decoration:underline;
  text-underline-offset:4px;
  font-weight:600;
}
.link-xk:hover{color:var(--xk-primary-600);}

/* ============ 标签 / 徽章 ============ */
.badge-xk{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:var(--r-pill);
  background:rgba(18,133,124,.10);
  color:var(--xk-primary-600);
  font-size:13px;
  font-weight:600;
  letter-spacing:.2px;
}
.badge-xk-outline{
  background:transparent;
  border:1px solid var(--xk-line);
  color:var(--xk-muted);
}

/* ============ 导航 ============ */
.xk-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(247,244,238,.96);
  backdrop-filter:blur(4px);
  border-bottom:1px solid var(--xk-line);
  transition:box-shadow .2s ease;
}
.xk-header.is-scrolled{box-shadow:var(--sh-2);}
.xk-nav{
  display:flex;
  align-items:center;
  height:64px;
  gap:28px;
}
.xk-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--xk-ink);
  font-size:18px;
  font-weight:700;
  letter-spacing:.3px;
  flex-shrink:0;
}
.xk-logo svg{width:28px;height:28px;flex-shrink:0;}
.xk-logo:hover{color:var(--xk-primary-600);}
.xk-channels{
  display:flex;
  align-items:center;
  gap:28px;
  flex:1 1 auto;
}
.xk-channels a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--xk-ink-2);
  padding:6px 0;
}
.xk-channels a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  height:2px;
  background:var(--xk-primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .2s ease;
}
.xk-channels a:hover{color:var(--xk-primary-600);}
.xk-channels a:hover::after{transform:scaleX(1);}
.xk-channels a.active{color:var(--xk-primary);font-weight:600;}
.xk-channels a.active::after{transform:scaleX(1);}
.xk-nav-right{
  display:flex;
  align-items:center;
  gap:14px;
  flex-shrink:0;
}
.xk-search-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 16px;
  border-radius:10px;
  border:1px solid var(--xk-line);
  background:#fff;
  color:var(--xk-ink-2);
  font-size:15px;
  cursor:pointer;
  transition:border-color .18s ease,color .18s ease,box-shadow .18s ease;
}
.xk-search-btn:hover{border-color:var(--xk-primary);color:var(--xk-primary-600);box-shadow:var(--sh-1);}
.xk-burger{
  display:none;
  width:42px;
  height:42px;
  border-radius:10px;
  border:1px solid var(--xk-line);
  background:#fff;
  align-items:center;
  justify-content:center;
  cursor:pointer;
}
.xk-burger span{
  display:block;
  width:18px;
  height:2px;
  background:var(--xk-ink);
  border-radius:2px;
  position:relative;
}
.xk-burger span::before,.xk-burger span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;
  height:2px;
  background:var(--xk-ink);
  border-radius:2px;
}
.xk-burger span::before{top:-6px;}
.xk-burger span::after{top:6px;}

.xk-search-panel{
  display:none;
  border-top:1px solid var(--xk-line);
  background:#fff;
  box-shadow:var(--sh-2);
}
.xk-search-panel.open{display:block;}
.xk-search-inner{
  max-width:1200px;
  margin:0 auto;
  padding:20px var(--gutter) 18px;
  width:100%;
}
.xk-search-inner input{
  width:100%;
  max-width:320px;
  height:44px;
  border-radius:10px;
  border:1px solid var(--xk-line);
  padding:0 14px;
  font-size:15px;
  color:var(--xk-ink);
  background:var(--xk-paper);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.xk-search-inner input:focus{
  outline:none;
  border-color:var(--xk-primary);
  box-shadow:0 0 0 3px rgba(18,133,124,.14);
  background:#fff;
}
.xk-search-tags{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px;
  margin-top:14px;
}
.xk-search-tags span{font-size:13px;color:var(--xk-muted);}

.xk-drawer{
  position:fixed;
  inset:0;
  z-index:1050;
  background:var(--xk-paper);
  transform:translateX(100%);
  transition:transform .26s ease;
  display:flex;
  flex-direction:column;
  padding:20px var(--gutter) 32px;
  overflow-y:auto;
}
.xk-drawer.open{transform:translateX(0);}
.xk-drawer-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:44px;
  margin-bottom:18px;
}
.xk-drawer-close{
  width:40px;height:40px;
  border-radius:10px;
  border:1px solid var(--xk-line);
  background:#fff;
  font-size:20px;
  line-height:1;
  color:var(--xk-ink);
  cursor:pointer;
}
.xk-drawer nav{display:flex;flex-direction:column;gap:4px;}
.xk-drawer nav a{
  padding:14px 4px;
  font-size:17px;
  color:var(--xk-ink);
  border-bottom:1px solid var(--xk-line);
}
.xk-drawer nav a.active{color:var(--xk-primary);font-weight:600;}
.xk-drawer .drawer-cta{margin-top:24px;}

/* ============ Hero ============ */
.hero{border-bottom:1px solid var(--xk-line);background:var(--xk-paper);}
.hero-grid{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:0;
  align-items:stretch;
  min-height:560px;
}
.hero-copy{
  display:flex;
  flex-direction:column;
  justify-content:center;
  padding:64px 48px 64px 0;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  align-self:flex-start;
  height:30px;
  padding:0 14px;
  border-radius:var(--r-pill);
  background:var(--xk-primary-100);
  color:var(--xk-primary-600);
  font-size:13px;
  font-weight:600;
  margin-bottom:20px;
}
.hero-eyebrow i{
  width:6px;height:6px;border-radius:50%;
  background:var(--xk-star);
  display:inline-block;
}
.hero h1{
  font-size:clamp(30px,3.4vw,44px);
  line-height:1.28;
  font-weight:700;
  color:var(--xk-ink);
  letter-spacing:-.2px;
}
.hero-sub{
  margin-top:18px;
  font-size:17px;
  line-height:1.9;
  color:var(--xk-ink-2);
  max-width:480px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:30px;
}
.hero-metrics{
  display:flex;
  flex-wrap:wrap;
  gap:36px;
  margin-top:44px;
  padding-top:24px;
  border-top:1px solid var(--xk-line);
}
.hero-metric strong{
  display:block;
  font-family:var(--font-num);
  font-size:26px;
  font-weight:700;
  color:var(--xk-ink);
  letter-spacing:-.5px;
}
.hero-metric span{
  font-size:14px;
  color:var(--xk-muted);
}
.hero-visual{
  position:relative;
  border-radius:var(--r-lg) 0 0 var(--r-lg);
  overflow:hidden;
  margin-right:calc(50% - 50vw);
  min-height:560px;
  background:var(--xk-deep);
}
.hero-visual img{
  width:100%;
  height:100%;
  min-height:560px;
  object-fit:cover;
  aspect-ratio:16/10;
}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(105deg,rgba(12,42,43,.62) 0%,rgba(12,42,43,.18) 46%,rgba(12,42,43,.05) 100%);
  pointer-events:none;
}
.hero-visual .star-dot{
  position:absolute;
  width:6px;height:6px;
  border-radius:50%;
  background:var(--xk-star);
  opacity:.85;
  z-index:2;
}
.hero-visual .s1{top:14%;left:12%;}
.hero-visual .s2{top:24%;left:64%;width:4px;height:4px;}
.hero-visual .s3{top:62%;left:9%;width:4px;height:4px;}
.hero-visual .s4{top:78%;left:52%;}
.hero-visual .s5{top:40%;left:88%;width:4px;height:4px;}
.hero-visual .s6{top:9%;left:44%;width:3px;height:3px;}

.hero-data-card{
  position:absolute;
  left:32px;
  bottom:32px;
  z-index:3;
  width:266px;
  background:rgba(255,255,255,.96);
  border-radius:var(--r-md);
  padding:18px 20px;
  box-shadow:var(--sh-3);
}
.hero-data-card .k{
  font-size:13px;
  color:var(--xk-muted);
}
.hero-data-card .v{
  font-family:var(--font-num);
  font-size:30px;
  font-weight:700;
  color:var(--xk-ink);
  line-height:1.2;
  margin-top:2px;
}
.hero-data-card .bar{
  height:6px;
  border-radius:var(--r-pill);
  background:var(--xk-paper-2);
  margin-top:12px;
  overflow:hidden;
}
.hero-data-card .bar i{
  display:block;
  height:100%;
  width:82%;
  background:var(--xk-primary);
  border-radius:var(--r-pill);
}
.hero-data-card .note{
  font-size:13px;
  color:var(--xk-muted);
  margin-top:10px;
  line-height:1.7;
}

/* ============ 板块通用 ============ */
.section{padding:var(--sec-y) 0;}
.section-alt{background:var(--xk-paper-2);}
.section-deep{background:var(--xk-deep);color:#DDE7E5;}
.sec-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.sec-head h2{
  font-size:28px;
  line-height:1.35;
  font-weight:700;
  color:var(--xk-ink);
  letter-spacing:-.2px;
}
.sec-head .sec-desc{
  font-size:16px;
  color:var(--xk-muted);
  margin-top:10px;
  max-width:640px;
}
.section-deep .sec-head h2{color:#fff;}
.section-deep .sec-desc{color:#A9C0BD;}

/* ============ 指标看板 ============ */
.kpi-board{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  background:#fff;
  border:1px solid var(--xk-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.kpi{
  padding:32px 28px 28px;
  border-right:1px solid var(--xk-line);
}
.kpi:last-child{border-right:0;}
.kpi .num{
  font-family:var(--font-num);
  font-size:40px;
  font-weight:700;
  color:var(--xk-ink);
  line-height:1.1;
  letter-spacing:-1px;
}
.kpi .num small{
  font-size:16px;
  font-weight:600;
  margin-left:4px;
  color:var(--xk-muted);
  letter-spacing:0;
}
.kpi .lbl{
  font-size:14px;
  color:var(--xk-muted);
  margin-top:8px;
}
.kpi .track{
  height:4px;
  border-radius:var(--r-pill);
  background:var(--xk-paper-2);
  margin-top:16px;
  overflow:hidden;
}
.kpi .track i{
  display:block;
  height:100%;
  background:var(--xk-primary);
  border-radius:var(--r-pill);
}

/* ============ Bento 服务矩阵 ============ */
.bento{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:24px;
}
.bento-item{
  background:#fff;
  border:1px solid var(--xk-line);
  border-radius:var(--r-md);
  padding:30px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  display:flex;
  flex-direction:column;
}
.bento-item:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:rgba(18,133,124,.3);
}
.bento-item.c7{grid-column:span 7;}
.bento-item.c5{grid-column:span 5;}
.bento-no{
  font-family:var(--font-num);
  font-size:14px;
  font-weight:700;
  color:var(--xk-primary);
  letter-spacing:1px;
}
.bento-icon{
  width:46px;height:46px;
  border-radius:12px;
  background:var(--xk-primary-100);
  display:flex;
  align-items:center;
  justify-content:center;
  margin:16px 0 20px;
  color:var(--xk-primary-600);
}
.bento-icon svg{width:24px;height:24px;}
.bento-item h3{
  font-size:20px;
  line-height:1.45;
  font-weight:600;
  color:var(--xk-ink);
}
.bento-item p{
  font-size:16px;
  color:var(--xk-ink-2);
  margin-top:10px;
  flex:1 1 auto;
}
.bento-more{
  margin-top:20px;
  font-size:15px;
  font-weight:600;
  color:var(--xk-primary);
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.bento-item:hover .bento-more{color:var(--xk-primary-600);}
.bento-thumb{
  margin-top:22px;
  border-radius:12px;
  overflow:hidden;
  aspect-ratio:16/10;
  background:var(--xk-paper-2);
}
.bento-thumb img{width:100%;height:100%;object-fit:cover;}

/* ============ 对比区 ============ */
.compare-wrap{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
  position:relative;
}
.compare-col{
  border-radius:var(--r-md);
  padding:32px 30px;
}
.compare-col h3{
  font-size:20px;
  font-weight:600;
  margin-bottom:22px;
}
.compare-col-old{
  background:var(--xk-paper-2);
  border:1px solid var(--xk-line);
  color:var(--xk-muted);
}
.compare-col-old h3{color:var(--xk-muted);}
.compare-col-new{
  background:rgba(18,133,124,.07);
  border:1px solid var(--xk-primary);
}
.compare-col-new h3{color:var(--xk-primary-600);}
.compare-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:56px;
  border-bottom:1px solid rgba(12,42,43,.07);
  font-size:16px;
}
.compare-col-new .compare-row{border-bottom-color:rgba(18,133,124,.16);}
.compare-row:last-child{border-bottom:0;}
.compare-row em{
  font-style:normal;
  font-size:14px;
  flex-shrink:0;
}
.compare-col-old .compare-row em{color:#8A9997;}
.compare-col-new .compare-row em{color:var(--xk-primary-600);font-weight:600;}
.compare-vs{
  position:absolute;
  left:50%;
  top:50%;
  transform:translate(-50%,-50%);
  width:64px;
  height:64px;
  border-radius:50%;
  background:var(--xk-deep);
  color:var(--xk-star);
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-num);
  font-size:18px;
  font-weight:700;
  letter-spacing:1px;
  box-shadow:var(--sh-3);
  border:3px solid var(--xk-paper);
  z-index:2;
}
.section-alt .compare-vs{border-color:var(--xk-paper-2);}

/* ============ 列表卡 / CMS ============ */
.cms-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:24px;
  align-items:stretch;
}
.cms-card{
  display:block;
  background:#fff;
  border:1px solid var(--xk-line);
  border-radius:var(--r-md);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:box-shadow .2s ease,transform .2s ease,border-color .2s ease;
  color:inherit;
}
.cms-card:hover{
  box-shadow:var(--sh-2);
  transform:translateY(-2px);
  border-color:rgba(18,133,124,.3);
  color:inherit;
}
.cms-main-body{padding:24px 26px 26px;}
.cms-cover{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--xk-paper-2);
  border-radius:12px;
  margin:24px 26px 0;
}
.cms-card-main .cms-cover{margin:0;border-radius:0;}
.cms-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.cms-card:hover .cms-cover img{transform:scale(1.03);}
.cms-card h3{
  font-size:20px;
  line-height:1.45;
  font-weight:600;
  color:var(--xk-ink);
  margin-top:14px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.cms-card p{
  font-size:16px;
  color:var(--xk-ink-2);
  margin-top:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.cms-meta{
  display:flex;
  align-items:center;
  gap:14px;
  margin-top:16px;
}
.cms-meta time{
  font-family:var(--font-num);
  font-size:14px;
  color:var(--xk-muted);
}
.cms-side{
  display:flex;
  flex-direction:column;
  gap:18px;
}
.cms-mini{
  display:flex;
  gap:18px;
  align-items:stretch;
  padding:16px;
  text-decoration:none;
  color:inherit;
}
.cms-mini .cms-cover{
  width:96px;
  min-width:96px;
  height:72px;
  aspect-ratio:auto;
  margin:0;
  border-radius:10px;
  flex-shrink:0;
}
.cms-mini-body{
  display:flex;
  flex-direction:column;
  justify-content:center;
  min-width:0;
}
.cms-mini-body h3{
  font-size:16px;
  line-height:1.5;
  font-weight:600;
  margin-top:0;
  -webkit-line-clamp:2;
}
.cms-mini-meta{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:8px;
}
.cms-mini-meta time{
  font-family:var(--font-num);
  font-size:14px;
  color:var(--xk-muted);
}
.cms-empty{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  min-height:240px;
  gap:14px;
  background:#fff;
  border:1px dashed var(--xk-line);
  border-radius:var(--r-md);
  text-align:center;
  padding:32px;
}
.cms-empty svg{width:48px;height:48px;color:var(--xk-primary);}
.cms-empty p{font-size:16px;color:var(--xk-muted);}

/* ============ FAQ ============ */
.faq-list{
  display:flex;
  flex-direction:column;
  gap:12px;
  max-width:900px;
}
.xk-faq-item{
  background:#fff;
  border:1px solid var(--xk-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh-1);
  overflow:hidden;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.xk-faq-item.open{border-color:rgba(18,133,124,.35);box-shadow:var(--sh-2);}
.xk-faq-q{
  width:100%;
  min-height:56px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:14px 24px;
  background:transparent;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--xk-ink);
  cursor:pointer;
  position:relative;
  transition:color .18s ease;
}
.xk-faq-q::before{
  content:"";
  position:absolute;
  left:0;
  top:0;
  bottom:0;
  width:3px;
  background:var(--xk-primary);
  transform:scaleY(0);
  transform-origin:center;
  transition:transform .2s ease;
}
.xk-faq-item.open .xk-faq-q::before{transform:scaleY(1);}
.xk-faq-q:hover{color:var(--xk-primary-600);}
.xk-faq-q .ico{
  flex-shrink:0;
  width:20px;
  height:20px;
  position:relative;
}
.xk-faq-q .ico::before,
.xk-faq-q .ico::after{
  content:"";
  position:absolute;
  background:var(--xk-primary);
  border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.xk-faq-q .ico::before{left:0;top:9px;width:20px;height:2px;}
.xk-faq-q .ico::after{left:9px;top:0;width:2px;height:20px;}
.xk-faq-item.open .xk-faq-q .ico::after{transform:scaleY(0);opacity:0;}
.xk-faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease;
}
.xk-faq-item.open .xk-faq-a{max-height:320px;}
.xk-faq-a p{
  padding:0 24px 24px 27px;
  font-size:16px;
  line-height:1.9;
  color:var(--xk-ink-2);
}

/* ============ 转化表单 ============ */
.contact-card{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:0;
  background:#fff;
  border:1px solid var(--xk-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh-2);
  overflow:hidden;
}
.contact-left{
  background:var(--xk-deep);
  color:#DDE7E5;
  padding:44px 40px;
  position:relative;
  overflow:hidden;
}
.contact-left::before{
  content:"";
  position:absolute;
  width:220px;height:220px;
  border-radius:50%;
  border:1px solid rgba(242,200,121,.28);
  right:-70px;
  top:-70px;
}
.contact-left h2{
  font-size:26px;
  line-height:1.4;
  font-weight:700;
  color:#fff;
}
.contact-left p{
  margin-top:14px;
  font-size:16px;
  line-height:1.9;
  color:#A9C0BD;
}
.contact-list{
  margin-top:28px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.contact-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:15px;
  color:#C7D6D3;
}
.contact-list li i{
  width:6px;height:6px;
  border-radius:50%;
  background:var(--xk-star);
  display:block;
  margin-top:11px;
  flex-shrink:0;
}
.contact-right{padding:40px;}
.form-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:18px;
}
.field{margin-bottom:18px;}
.field label{
  display:block;
  font-size:14px;
  font-weight:600;
  color:var(--xk-ink);
  margin-bottom:8px;
}
.field input,
.field select,
.field textarea{
  width:100%;
  border:1px solid var(--xk-line);
  border-radius:10px;
  background:var(--xk-paper);
  color:var(--xk-ink);
  font-size:15px;
  padding:0 14px;
  transition:border-color .18s ease,box-shadow .18s ease,background-color .18s ease;
}
.field input,
.field select{height:48px;}
.field textarea{
  min-height:120px;
  padding:12px 14px;
  line-height:1.8;
  resize:vertical;
}
.field input::placeholder,
.field textarea::placeholder{color:#9AAAA8;}
.field input:focus,
.field select:focus,
.field textarea:focus{
  outline:none;
  border-color:var(--xk-primary);
  background:#fff;
  box-shadow:0 0 0 3px rgba(18,133,124,.14);
}
.form-note{
  font-size:13px;
  color:var(--xk-muted);
  line-height:1.75;
  margin-top:12px;
}

/* ============ 页脚 ============ */
.xk-footer{
  background:var(--xk-deep);
  color:#A9C0BD;
  padding:68px 0 0;
  font-size:15px;
}
.footer-grid{
  display:grid;
  grid-template-columns:4fr 2fr 2fr 4fr;
  gap:32px;
  padding-bottom:48px;
}
.footer-brand .xk-logo{color:#fff;font-size:17px;}
.footer-brand p{
  margin-top:16px;
  font-size:14px;
  line-height:1.85;
  color:#93ACA9;
  max-width:280px;
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:#fff;
  margin-bottom:18px;
  letter-spacing:.2px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{
  color:#A9C0BD;
  font-size:15px;
}
.footer-col a:hover{color:var(--xk-star);}
.footer-contact li{
  display:flex;
  gap:10px;
  font-size:14px;
  line-height:1.8;
  color:#A9C0BD;
}
.footer-contact li span:first-child{color:#7F9A97;flex-shrink:0;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.10);
  padding:22px 0 28px;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:#7F9A97;
}
.footer-bottom .num{font-family:var(--font-num);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .hero-copy{padding-right:36px;}
}
@media (max-width:991px){
  :root{--sec-y:64px;}
  .xk-channels{display:none;}
  .xk-burger{display:inline-flex;}
  .xk-search-btn{display:none;}
  .xk-nav{height:56px;gap:16px;justify-content:space-between;}
  .hero-grid{grid-template-columns:1fr;}
  .hero-copy{padding:40px 0 32px;}
  .hero-visual{
    margin-right:0;
    border-radius:var(--r-lg);
    min-height:0;
  }
  .hero-visual img{min-height:0;aspect-ratio:16/10;}
  .hero-visual{margin-bottom:40px;}
  .hero-data-card{left:18px;bottom:18px;width:220px;padding:14px 16px;}
  .hero-data-card .v{font-size:24px;}
  .sec-head{flex-direction:column;align-items:flex-start;gap:16px;}
  .bento-item.c7,.bento-item.c5{grid-column:span 12;}
  .cms-grid{grid-template-columns:1fr;}
  .contact-card{grid-template-columns:1fr;}
  .contact-left{padding:32px 26px;}
  .contact-right{padding:28px 26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  .kpi-board{grid-template-columns:1fr 1fr;}
  .kpi{border-right:0;border-bottom:1px solid var(--xk-line);}
  .kpi:nth-child(odd){border-right:1px solid var(--xk-line);}
  .kpi:nth-last-child(-n+2){border-bottom:0;}
  .compare-wrap{grid-template-columns:1fr;}
  .compare-vs{position:static;transform:none;margin:0 auto;}
  .compare-col{padding:24px 20px;}
  .compare-row{min-height:auto;padding:14px 0;flex-direction:column;align-items:flex-start;gap:4px;}
  .form-row{grid-template-columns:1fr;}
  .hero-actions .btn-xk{width:100%;}
}
@media (max-width:575px){
  :root{--sec-y:48px;--gutter:16px;}
  .kpi{padding:22px 20px;}
  .kpi .num{font-size:32px;}
  .bento-item{padding:22px;}
  .contact-right{padding:22px 18px;}
  .footer-grid{grid-template-columns:1fr;}
  .cms-main-body{padding:20px;}
  .cms-cover{margin:20px 20px 0;}
  .cms-card-main .cms-cover{margin:0;}
  .xk-faq-q{padding:14px 18px;}
  .xk-faq-a p{padding:0 18px 20px 21px;}
}

/* roulang page: article */
:root{
  --xk-deep:#0C2A2B;
  --xk-primary:#12857C;
  --xk-primary-600:#0E6B64;
  --xk-primary-100:#E3F1EF;
  --xk-accent:#E07A5F;
  --xk-accent-600:#C96448;
  --xk-paper:#F7F4EE;
  --xk-paper-2:#EDF2F0;
  --xk-ink:#14201F;
  --xk-ink-2:#2B3A39;
  --xk-muted:#6B7C7A;
  --xk-line:#DCE5E2;
  --xk-star:#F2C879;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,42,43,.05);
  --sh-2:0 10px 24px rgba(12,42,43,.10);
  --sh-3:0 18px 40px rgba(12,42,43,.14);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",ui-monospace,monospace;
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--xk-paper);
  color:var(--xk-ink-2);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--xk-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--xk-primary-600);}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--xk-ink);margin:0;font-weight:700;letter-spacing:0;}
p{margin:0 0 1.1em;}
ul,ol{margin:0;}
:focus-visible{outline:2px solid var(--xk-primary);outline-offset:2px;}
.container{max-width:1200px;padding-left:20px;padding-right:20px;}
@media (min-width:1200px){.container{max-width:1200px;}}
@media (min-width:1400px){.container{max-width:1200px;}}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}

/* ---------- 导航 ---------- */
.xk-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,244,238,.96);
  backdrop-filter:blur(4px);
  border-bottom:1px solid var(--xk-line);
  transition:box-shadow .25s ease;
}
.xk-header.is-scrolled{box-shadow:var(--sh-2);}
.xk-nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--nav-h);}
.xk-nav-left{display:flex;align-items:center;gap:28px;min-width:0;}
.xk-nav-right{display:flex;align-items:center;gap:12px;}
.xk-logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;color:var(--xk-ink);white-space:nowrap;}
.xk-logo svg{width:28px;height:26px;flex:0 0 auto;}
.xk-logo span{letter-spacing:.01em;}
.xk-channels{display:flex;align-items:center;gap:28px;}
.xk-channels a{
  position:relative;
  font-size:15px;
  color:var(--xk-ink-2);
  padding:6px 0;
  white-space:nowrap;
}
.xk-channels a:hover{color:var(--xk-primary);}
.xk-channels a.active{color:var(--xk-primary);font-weight:600;}
.xk-channels a.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--xk-primary);
}
.xk-drawer-cta{display:none;}
.xk-icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;
  border:1px solid var(--xk-line);background:#fff;color:var(--xk-ink-2);
  transition:border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.xk-icon-btn svg{width:18px;height:18px;}
.xk-icon-btn:hover{border-color:var(--xk-primary);color:var(--xk-primary);box-shadow:var(--sh-1);}
.xk-burger{display:none;}
.xk-search-wrap{position:relative;}
.xk-search-panel{
  position:absolute;right:0;top:calc(100% + 10px);
  width:min(320px,calc(100vw - 40px));
  background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md);
  box-shadow:var(--sh-3);padding:16px;display:none;
}
.xk-search-panel.open{display:block;}
.xk-search-form{display:flex;gap:8px;}
.xk-search-form input{
  flex:1 1 auto;min-width:0;height:44px;border-radius:10px;
  border:1px solid var(--xk-line);background:#fff;
  padding:0 12px;font-size:14px;color:var(--xk-ink-2);
}
.xk-search-form input:focus{outline:none;border-color:var(--xk-primary);box-shadow:0 0 0 3px rgba(18,133,124,.12);}
.xk-tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;align-items:center;}
.xk-tag-label{font-size:13px;color:var(--xk-muted);}
.xk-tag{
  display:inline-flex;align-items:center;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--xk-primary-100);color:var(--xk-primary-600);
  font-size:13px;line-height:1.6;
}
.xk-tag:hover{background:#D3E8E5;color:var(--xk-primary-600);}

/* ---------- 按钮 ---------- */
.xk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:10px;border:1px solid transparent;
  font-size:16px;font-weight:600;line-height:1;
  cursor:pointer;text-decoration:none;
  transition:background-color .2s ease,border-color .2s ease,color .2s ease,transform .15s ease,box-shadow .2s ease;
}
.xk-btn-primary{background:var(--xk-accent);color:#fff;box-shadow:var(--sh-1);}
.xk-btn-primary:hover{background:var(--xk-accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.xk-btn-primary:active{transform:none;box-shadow:var(--sh-1);}
.xk-btn-ghost{background:transparent;border-color:var(--xk-primary);color:var(--xk-primary);}
.xk-btn-ghost:hover{background:rgba(18,133,124,.08);color:var(--xk-primary-600);border-color:var(--xk-primary-600);}
.xk-btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff;}
.xk-btn-ghost-light:hover{background:rgba(255,255,255,.10);color:#fff;border-color:#fff;}
.xk-btn-sm{height:40px;padding:0 18px;font-size:15px;border-radius:9px;}
.xk-btn-block{width:100%;}
.xk-btn:disabled,.xk-btn.is-disabled{opacity:.5;pointer-events:none;transform:none;}

/* ---------- 面包屑 ---------- */
.xk-crumb{padding:20px 0 0;font-size:14px;color:var(--xk-muted);}
.xk-crumb ol{list-style:none;padding:0;display:flex;flex-wrap:wrap;align-items:center;gap:8px;}
.xk-crumb li{display:flex;align-items:center;gap:8px;max-width:100%;}
.xk-crumb a{color:var(--xk-muted);}
.xk-crumb a:hover{color:var(--xk-primary);}
.xk-crumb .sep{color:#B6C4C2;}
.xk-crumb .current{color:var(--xk-ink-2);overflow:hidden;text-overflow:ellipsis;white-space:nowrap;max-width:42vw;}

/* ---------- 文章头部 ---------- */
.xk-post-head{padding:28px 0 32px;border-bottom:1px solid var(--xk-line);}
.xk-post-head h1{
  font-size:clamp(30px,3.4vw,44px);
  line-height:1.28;
  font-weight:700;
  margin:16px 0 18px;
  max-width:900px;
}
.xk-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--xk-primary-100);color:var(--xk-primary-600);
  font-size:13px;font-weight:600;line-height:1.7;
}
.xk-post-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;font-size:14px;color:var(--xk-muted);}
.xk-post-meta .dot{width:4px;height:4px;border-radius:50%;background:#C3D1CF;display:inline-block;}
.xk-post-meta b{font-weight:600;color:var(--xk-ink-2);}

/* ---------- 文章布局 ---------- */
.xk-article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:48px;
  align-items:start;
  padding:48px 0 0;
}
.xk-article-main{max-width:760px;min-width:0;}

/* ---------- 正文排版 ---------- */
.xk-article-body{font-size:17px;line-height:1.9;color:var(--xk-ink-2);}
.xk-article-body > *:first-child{margin-top:0;}
.xk-article-body p{margin:0 0 1.1em;}
.xk-article-body h2{
  font-size:25px;line-height:1.45;font-weight:700;
  margin:52px 0 18px;padding-left:14px;border-left:4px solid var(--xk-primary);
}
.xk-article-body h3{font-size:20px;line-height:1.45;font-weight:600;margin:34px 0 12px;}
.xk-article-body h4{font-size:17px;font-weight:600;margin:24px 0 10px;}
.xk-article-body ul,.xk-article-body ol{padding-left:24px;margin:0 0 1.1em;}
.xk-article-body li{margin-bottom:8px;}
.xk-article-body li::marker{color:var(--xk-primary);}
.xk-article-body blockquote{
  margin:26px 0;padding:18px 20px;
  background:var(--xk-paper-2);
  border-left:3px solid var(--xk-primary);
  border-radius:0 var(--r-sm) var(--r-sm) 0;
  color:var(--xk-ink-2);
}
.xk-article-body blockquote p:last-child{margin-bottom:0;}
.xk-article-body table{width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;background:#fff;border-radius:var(--r-sm);overflow:hidden;}
.xk-article-body th{background:var(--xk-primary-100);color:var(--xk-ink);text-align:left;padding:12px 14px;font-weight:600;border:none;}
.xk-article-body td{padding:12px 14px;border-bottom:1px solid var(--xk-line);vertical-align:top;}
.xk-article-body tbody tr:nth-child(even){background:#FBFAF7;}
.xk-article-body tbody tr:last-child td{border-bottom:none;}
.xk-article-body a{color:var(--xk-primary);text-decoration:underline;text-decoration-style:dashed;text-underline-offset:4px;}
.xk-article-body a:hover{color:var(--xk-primary-600);text-decoration-style:solid;}
.xk-article-body img{border-radius:var(--r-md);margin:24px 0;width:100%;height:auto;}
.xk-article-body code{
  font-family:var(--font-num);font-size:15px;
  background:var(--xk-paper-2);padding:2px 6px;border-radius:6px;color:var(--xk-primary-600);
}
.xk-article-body hr{border:none;border-top:1px solid var(--xk-line);margin:40px 0;}

/* ---------- 空态 ---------- */
.xk-empty{
  display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center;
  min-height:240px;padding:40px 24px;background:#fff;
  border:1px solid var(--xk-line);border-radius:var(--r-md);box-shadow:var(--sh-1);
}
.xk-empty svg{width:48px;height:48px;color:#B6C4C2;margin-bottom:16px;}
.xk-empty-title{font-size:18px;font-weight:600;color:var(--xk-ink);margin-bottom:6px;}
.xk-empty p{font-size:14px;color:var(--xk-muted);margin-bottom:20px;}

/* ---------- 标签行 ---------- */
.xk-tagline{display:flex;flex-wrap:wrap;gap:10px;align-items:center;margin:44px 0 0;padding-top:28px;border-top:1px solid var(--xk-line);}
.xk-tagline .xk-tag-label{font-size:13px;color:var(--xk-muted);}

/* ---------- 上一条 / 下一条 ---------- */
.xk-pn{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px;margin-top:32px;}
.xk-pn-card{
  display:block;background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.xk-pn-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:rgba(18,133,124,.3);}
.xk-pn-card span{display:block;font-size:13px;color:var(--xk-muted);margin-bottom:8px;}
.xk-pn-card strong{display:block;font-size:16px;font-weight:600;color:var(--xk-ink);line-height:1.6;}
.xk-pn-card.next{text-align:right;}

/* ---------- 通用卡片 ---------- */
.xk-section{margin-top:64px;}
.xk-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px;}
.xk-section-head h2{font-size:28px;line-height:1.35;}
.xk-section-head p{font-size:14px;color:var(--xk-muted);margin:8px 0 0;}
.xk-more{font-size:15px;color:var(--xk-primary);text-decoration:underline;text-underline-offset:4px;}
.xk-cards-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.xk-card{
  display:flex;flex-direction:column;height:100%;
  background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,transform .25s ease;
}
.xk-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.xk-card-cover{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px 12px 0 0;}
.xk-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto;}
.xk-card-body h3{font-size:17px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.xk-card-body p{
  font-size:14px;line-height:1.75;color:var(--xk-muted);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.xk-card-foot{margin-top:auto;font-size:14px;color:var(--xk-muted);font-family:var(--font-num);}

/* ---------- 侧栏 ---------- */
.xk-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px;}
.xk-side-card{background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md);padding:20px;box-shadow:var(--sh-1);}
.xk-side-title{font-size:15px;font-weight:700;color:var(--xk-ink);margin:0 0 14px;padding-left:10px;border-left:3px solid var(--xk-primary);line-height:1.4;}
.xk-toc{display:flex;flex-direction:column;gap:2px;}
.xk-toc a{display:block;font-size:14px;line-height:1.7;color:var(--xk-ink-2);padding:6px 0 6px 10px;border-left:2px solid var(--xk-line);}
.xk-toc a:hover{color:var(--xk-primary);border-left-color:var(--xk-primary);}
.xk-toc a.is-current{color:var(--xk-primary);border-left-color:var(--xk-primary);font-weight:600;}
.xk-side-list{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:14px;}
.xk-side-list li{display:flex;flex-direction:column;gap:4px;}
.xk-side-list a{font-size:15px;font-weight:600;color:var(--xk-ink);}
.xk-side-list a:hover{color:var(--xk-primary);}
.xk-side-list span{font-size:13px;color:var(--xk-muted);line-height:1.7;}
.xk-side-cta{background:var(--xk-paper-2);border-color:#D7E3E0;}
.xk-side-cta p{font-size:14px;line-height:1.8;color:var(--xk-muted);margin-bottom:16px;}

/* ---------- 底部 CTA 带 ---------- */
.xk-cta-band{background:var(--xk-deep);margin-top:88px;border-radius:var(--r-lg) var(--r-lg) 0 0;position:relative;overflow:hidden;}
.xk-cta-band::before{
  content:"";position:absolute;right:-60px;top:-80px;width:260px;height:260px;border-radius:50%;
  border:1px solid rgba(242,200,121,.28);
}
.xk-cta-band::after{
  content:"";position:absolute;right:52px;top:36px;width:7px;height:7px;border-radius:50%;background:var(--xk-star);
}
.xk-cta-inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;padding:56px 0;}
.xk-cta-inner h2{color:#fff;font-size:26px;line-height:1.4;margin-bottom:10px;}
.xk-cta-inner p{color:#AFC1BF;font-size:15px;line-height:1.8;margin:0;max-width:560px;}
.xk-cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- 页脚 ---------- */
.xk-footer{background:var(--xk-deep);color:#CFDAD8;padding:64px 0 0;}
.xk-footer .xk-logo{color:#fff;font-size:18px;}
.xk-footer .xk-logo svg{width:28px;height:26px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.4fr;gap:40px;padding-bottom:40px;}
.footer-brand p{font-size:14px;line-height:1.8;color:#9FB2B0;margin:16px 0 0;max-width:260px;}
.footer-col h4{font-size:14px;color:#fff;margin:0 0 16px;font-weight:600;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:#AFC1BF;font-size:14px;}
.footer-col a:hover{color:var(--xk-star);}
.footer-contact li{display:flex;gap:12px;font-size:14px;color:#AFC1BF;}
.footer-contact li > span:first-child{color:#7E9391;min-width:42px;flex:0 0 auto;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8FA3A1;
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .xk-search-panel{right:0;}
}
@media (max-width:991px){
  :root{--nav-h:56px;}
  .xk-header{backdrop-filter:none;}
  .xk-nav-right .xk-nav-cta{display:none;}
  .xk-burger{display:inline-flex;}
  .xk-channels{
    position:fixed;top:var(--nav-h);left:0;bottom:0;
    width:min(320px,84vw);flex-direction:column;align-items:stretch;gap:0;
    background:var(--xk-paper);border-right:1px solid var(--xk-line);
    padding:16px 20px 28px;transform:translateX(-102%);
    transition:transform .28s ease;z-index:1040;overflow-y:auto;
  }
  .xk-channels.open{transform:translateX(0);box-shadow:var(--sh-3);}
  .xk-channels a{padding:14px 0;font-size:16px;border-bottom:1px solid var(--xk-line);}
  .xk-channels a.active::after{display:none;}
  .xk-drawer-cta{display:inline-flex;margin-top:20px;border-bottom:none;}
  .xk-article-layout{grid-template-columns:minmax(0,1fr);gap:36px;padding-top:36px;}
  .xk-side{position:static;order:2;}
  .xk-section-head h2{font-size:24px;}
  .xk-cta-inner{flex-direction:column;align-items:flex-start;padding:44px 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .xk-post-head h1{font-size:28px;}
  .xk-pn{grid-template-columns:minmax(0,1fr);}
  .xk-pn-card.next{text-align:left;}
  .xk-cards-3{grid-template-columns:minmax(0,1fr);}
  .xk-crumb .current{max-width:60vw;}
  .xk-article-body h2{font-size:22px;margin-top:40px;}
  .xk-section{margin-top:48px;}
  .xk-cta-band{margin-top:64px;border-radius:var(--r-md) var(--r-md) 0 0;}
}
@media (max-width:575px){
  body{font-size:16px;}
  .container{padding-left:16px;padding-right:16px;}
  .xk-card-body{padding:18px;}
  .xk-side-card{padding:18px;}
  .xk-cta-actions{width:100%;}
  .xk-cta-actions .xk-btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: category1 */
:root{
  --xk-deep:#0C2A2B;
  --xk-primary:#12857C;
  --xk-primary-600:#0E6B64;
  --xk-primary-100:#E3F1EF;
  --xk-accent:#E07A5F;
  --xk-accent-600:#C96448;
  --xk-paper:#F7F4EE;
  --xk-paper-2:#EDF2F0;
  --xk-ink:#14201F;
  --xk-ink-2:#2B3A39;
  --xk-muted:#6B7C7A;
  --xk-line:#DCE5E2;
  --xk-star:#F2C879;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",ui-monospace,monospace;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,42,43,.05);
  --sh-2:0 10px 24px rgba(12,42,43,.10);
  --sh-3:0 18px 40px rgba(12,42,43,.14);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  color:var(--xk-ink-2);
  background:var(--xk-paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--xk-primary);text-decoration:none;transition:color .2s ease,background-color .2s ease,border-color .2s ease}
a:hover{color:var(--xk-primary-600)}
h1,h2,h3,h4{color:var(--xk-ink);margin:0;font-weight:700}
h1{font-size:clamp(30px,3.4vw,44px);line-height:1.28}
h2{font-size:28px;line-height:1.35;margin-top:0}
h3{font-size:20px;line-height:1.45;font-weight:600}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.num{font-family:var(--font-num)}
:focus-visible{outline:2px solid var(--xk-primary);outline-offset:2px}

/* ============ 导航 ============ */
.xk-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(247,244,238,.96);
  backdrop-filter:blur(4px);
  border-bottom:1px solid var(--xk-line);
  transition:box-shadow .25s ease;
}
.xk-header.scrolled{box-shadow:var(--sh-2)}
.xk-nav{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px}
.xk-nav-left{display:flex;align-items:center;gap:28px;min-width:0}
.xk-logo{display:inline-flex;align-items:center;gap:9px;height:28px;flex:0 0 auto}
.xk-logo svg{height:26px;width:26px;display:block}
.xk-logo span{font-size:17px;font-weight:700;color:var(--xk-ink);letter-spacing:0;white-space:nowrap}
.xk-logo:hover span{color:var(--xk-primary-600)}
.xk-channels{display:flex;align-items:center;gap:28px}
.xk-channels a{
  position:relative;font-size:15px;color:var(--xk-ink-2);padding:4px 0;white-space:nowrap;
}
.xk-channels a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--xk-primary);transform:scaleX(0);transform-origin:left center;transition:transform .22s ease;
}
.xk-channels a:hover{color:var(--xk-primary-600)}
.xk-channels a:hover::after{transform:scaleX(1)}
.xk-channels a.active{color:var(--xk-primary);font-weight:600}
.xk-channels a.active::after{transform:scaleX(1)}
.xk-nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.xk-icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--xk-line);border-radius:10px;background:#fff;color:var(--xk-ink-2);
  cursor:pointer;transition:border-color .2s ease,color .2s ease,box-shadow .2s ease;
}
.xk-icon-btn:hover{border-color:var(--xk-primary);color:var(--xk-primary);box-shadow:var(--sh-1)}
.xk-icon-btn svg{width:18px;height:18px}
.xk-burger{display:none}

/* 搜索面板 */
.xk-search-panel{
  position:absolute;right:24px;top:calc(100% + 8px);width:320px;
  background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md);
  box-shadow:var(--sh-3);padding:16px;display:none;
}
.xk-search-panel.open{display:block}
.xk-search-panel form{display:flex;gap:8px;margin:0}
.xk-search-panel input{
  flex:1 1 auto;height:44px;border:1px solid var(--xk-line);border-radius:10px;
  padding:0 14px;font-size:15px;color:var(--xk-ink);background:var(--xk-paper);
}
.xk-search-panel input:focus{outline:none;border-color:var(--xk-primary);box-shadow:0 0 0 3px rgba(18,133,124,.14);background:#fff}
.xk-search-btn{
  height:44px;padding:0 18px;border:0;border-radius:10px;background:var(--xk-primary);
  color:#fff;font-size:15px;font-weight:600;cursor:pointer;transition:background-color .2s ease;
}
.xk-search-btn:hover{background:var(--xk-primary-600)}
.xk-search-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;padding-top:14px;border-top:1px solid var(--xk-line)}
.xk-search-tags a{
  font-size:13px;padding:5px 12px;border-radius:var(--r-pill);
  background:rgba(18,133,124,.10);color:var(--xk-primary-600);
}
.xk-search-tags a:hover{background:rgba(18,133,124,.18)}

/* 移动抽屉 */
.xk-mask{
  position:fixed;inset:0;background:rgba(12,42,43,.45);z-index:1100;
  opacity:0;visibility:hidden;transition:opacity .28s ease,visibility .28s ease;
}
.xk-mask.show{opacity:1;visibility:visible}
.xk-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);z-index:1200;
  background:var(--xk-paper);padding:24px;overflow-y:auto;
  transform:translateX(101%);transition:transform .28s ease;
  border-left:1px solid var(--xk-line);
}
.xk-drawer.open{transform:translateX(0)}
.xk-drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:24px}
.xk-drawer nav{display:flex;flex-direction:column;gap:4px;margin-bottom:24px}
.xk-drawer nav a{
  font-size:16px;color:var(--xk-ink-2);padding:12px 4px;border-bottom:1px solid var(--xk-line);
}
.xk-drawer nav a.active{color:var(--xk-primary);font-weight:600}
.xk-drawer .xk-btn{width:100%}

/* ============ 按钮 ============ */
.xk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:10px;border:1px solid transparent;
  font-size:16px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.xk-btn-primary{background:var(--xk-accent);color:#fff}
.xk-btn-primary:hover{background:var(--xk-accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.xk-btn-primary:active{transform:none;box-shadow:var(--sh-1)}
.xk-btn-secondary{background:transparent;border-color:var(--xk-primary);color:var(--xk-primary)}
.xk-btn-secondary:hover{background:rgba(18,133,124,.08);color:var(--xk-primary-600)}
.xk-btn-light{background:transparent;border-color:rgba(255,255,255,.5);color:#fff}
.xk-btn-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.xk-btn-sm{height:40px;padding:0 18px;font-size:15px}
.xk-btn:disabled,.xk-btn.disabled{opacity:.5;cursor:not-allowed;transform:none;box-shadow:none}

/* ============ 页头 ============ */
.cat-hero{
  position:relative;display:flex;align-items:center;min-height:240px;
  padding:56px 0 52px;color:#fff;isolation:isolate;
  background-image:url(/assets/images/backpic/back-2.png);
  background-size:cover;background-position:center;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background:linear-gradient(95deg,rgba(12,42,43,.92) 0%,rgba(12,42,43,.78) 52%,rgba(12,42,43,.62) 100%);
}
.cat-hero h1{color:#fff;max-width:820px}
.cat-hero-sub{font-size:17px;color:rgba(255,255,255,.82);max-width:640px;margin:16px 0 0;line-height:1.85}
.xk-breadcrumb{display:flex;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.68);margin-bottom:18px}
.xk-breadcrumb a{color:rgba(255,255,255,.78)}
.xk-breadcrumb a:hover{color:var(--xk-star)}
.xk-breadcrumb span{opacity:.6}

/* ============ 概况条 ============ */
.xk-facts{background:#fff;border-bottom:1px solid var(--xk-line)}
.facts-grid{display:grid;grid-template-columns:repeat(4,1fr)}
.fact{padding:24px 28px;border-right:1px solid var(--xk-line)}
.fact:last-child{border-right:0}
.fact-kicker{display:block;font-size:13px;color:var(--xk-primary-600);font-weight:600;letter-spacing:.02em;margin-bottom:6px}
.fact-text{display:block;font-size:15px;color:var(--xk-ink-2);line-height:1.75}

/* ============ 主体 ============ */
.cat-body{padding:72px 0 88px}
.cat-layout{display:grid;grid-template-columns:240px minmax(0,1fr);gap:48px;align-items:start}

.cat-toc{position:sticky;top:88px}
.toc-title{font-size:13px;color:var(--xk-muted);font-weight:600;letter-spacing:.06em;margin:0 0 14px}
.cat-toc ul{display:flex;flex-direction:column;gap:2px}
.cat-toc a{
  display:block;font-size:15px;color:var(--xk-ink-2);padding:9px 12px;border-radius:var(--r-sm);
  border-left:2px solid transparent;line-height:1.5;
}
.cat-toc a:hover{background:var(--xk-primary-100);color:var(--xk-primary-600)}
.cat-toc a.active{background:var(--xk-primary-100);color:var(--xk-primary-600);border-left-color:var(--xk-primary);font-weight:600}

.section-head{margin-bottom:28px}
.section-head h2{margin-bottom:14px}
.section-head p{color:var(--xk-muted);font-size:16px;max-width:660px}

.xk-feature{
  display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1fr);gap:36px;align-items:center;
  padding:36px;margin-bottom:24px;background:#fff;border:1px solid var(--xk-line);
  border-radius:var(--r-md);box-shadow:var(--sh-1);
  transition:box-shadow .25s ease,border-color .25s ease,transform .25s ease;
  scroll-margin-top:88px;
}
.xk-feature:hover{box-shadow:var(--sh-2);border-color:rgba(18,133,124,.3);transform:translateY(-2px)}
.xk-feature.reverse .xk-feature-media{order:2}
.xk-feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;border:1px solid var(--xk-line)}
.xk-feature-body h3{margin:10px 0 12px}
.xk-feature-body p{font-size:16px;color:var(--xk-ink-2)}
.xk-num-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:var(--r-pill);
  background:rgba(18,133,124,.10);color:var(--xk-primary-600);
  font-family:var(--font-num);font-size:13px;font-weight:700;
}
.xk-feature-list{display:flex;flex-direction:column;gap:8px;margin:16px 0}
.xk-feature-list li{
  position:relative;padding-left:18px;font-size:15px;color:var(--xk-muted);line-height:1.75;
}
.xk-feature-list li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--xk-star);
}
.xk-tag{
  display:inline-block;font-size:13px;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--xk-paper-2);color:var(--xk-ink-2);border:1px solid var(--xk-line);
}

/* ============ 上手路径 ============ */
.xk-flow{background:var(--xk-paper-2);border-top:1px solid var(--xk-line);border-bottom:1px solid var(--xk-line);padding:88px 0}
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:36px}
.flow-item{background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md);padding:26px 24px;position:relative;transition:box-shadow .25s ease,transform .25s ease}
.flow-item:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.flow-step{font-family:var(--font-num);font-size:32px;font-weight:700;color:var(--xk-primary-100);line-height:1;display:block;margin-bottom:12px}
.flow-item h3{font-size:18px;margin-bottom:8px}
.flow-item p{font-size:15px;color:var(--xk-muted);line-height:1.8;margin:0}

/* ============ FAQ ============ */
.xk-faq{padding:88px 0}
.faq-layout{display:grid;grid-template-columns:340px minmax(0,1fr);gap:56px;align-items:start}
.faq-intro p{color:var(--xk-muted);font-size:16px}
.faq-intro .xk-btn{margin-top:8px}
.xk-acc{border-top:1px solid var(--xk-line)}
.xk-acc-item{border-bottom:1px solid var(--xk-line);padding-left:14px}
.xk-acc-btn{
  position:relative;width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:14px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--xk-ink);line-height:1.6;
}
.xk-acc-btn::before{
  content:"";position:absolute;left:-14px;top:10px;bottom:10px;width:3px;border-radius:2px;
  background:var(--xk-primary);opacity:0;transition:opacity .2s ease;
}
.xk-acc-item.open .xk-acc-btn::before{opacity:1}
.xk-acc-icon{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;border:1px solid var(--xk-line);
  position:relative;transition:background-color .2s ease,border-color .2s ease,transform .2s ease;
}
.xk-acc-icon::before,.xk-acc-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--xk-primary);transform:translate(-50%,-50%);
}
.xk-acc-icon::before{width:10px;height:1.5px}
.xk-acc-icon::after{width:1.5px;height:10px;transition:opacity .2s ease}
.xk-acc-item.open .xk-acc-icon{border-color:var(--xk-primary);background:var(--xk-primary-100)}
.xk-acc-item.open .xk-acc-icon::after{opacity:0}
.xk-acc-panel{display:none;padding:0 44px 20px 0;font-size:16px;line-height:1.9;color:var(--xk-ink-2)}
.xk-acc-btn:hover{color:var(--xk-primary-600)}

/* ============ CTA 带 ============ */
.xk-cta-band{background:var(--xk-deep);color:#fff;padding:64px 0}
.cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px}
.xk-cta-band h2{color:#fff;margin-bottom:12px;max-width:560px}
.xk-cta-band p{color:rgba(255,255,255,.74);max-width:560px;margin:0;font-size:16px}
.cta-actions{display:flex;gap:14px;flex:0 0 auto}

/* ============ 页脚 ============ */
.xk-footer{background:var(--xk-deep);color:rgba(255,255,255,.68);padding:72px 0 28px}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 2fr 4fr;gap:40px}
.footer-brand .xk-logo span{color:#fff}
.footer-brand p{font-size:14px;line-height:1.85;margin:18px 0 0;max-width:290px;color:rgba(255,255,255,.62)}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;color:rgba(255,255,255,.68)}
.footer-col a:hover{color:var(--xk-star)}
.footer-contact li{display:flex;gap:12px;font-size:14px;line-height:1.7}
.footer-contact li span:first-child{color:rgba(255,255,255,.44);flex:0 0 40px}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .container{max-width:960px}
  .cat-layout{gap:36px;grid-template-columns:210px minmax(0,1fr)}
}
@media (max-width:991.98px){
  h2{font-size:24px}
  .xk-channels{display:none}
  .xk-burger{display:inline-flex}
  .xk-nav-right .xk-btn{display:none}
  .xk-nav{height:56px}
  .xk-header{--nav-h:56px}
  .xk-search-panel{right:16px;width:min(320px,calc(100vw - 32px))}
  .facts-grid{grid-template-columns:repeat(2,1fr)}
  .fact{border-bottom:1px solid var(--xk-line)}
  .fact:nth-child(2n){border-right:0}
  .fact:nth-child(3),.fact:nth-child(4){border-bottom:0}
  .cat-body{padding:56px 0 64px}
  .cat-layout{grid-template-columns:1fr}
  .cat-toc{position:static;padding:18px 20px;background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md)}
  .cat-toc ul{flex-direction:row;flex-wrap:wrap;gap:6px}
  .cat-toc a{border:1px solid var(--xk-line);border-left:1px solid var(--xk-line);font-size:14px;padding:7px 12px}
  .cat-toc a.active{border-color:var(--xk-primary)}
  .xk-feature{grid-template-columns:1fr;gap:24px;padding:24px}
  .xk-feature.reverse .xk-feature-media{order:0}
  .xk-flow,.xk-faq{padding:64px 0}
  .flow-grid{grid-template-columns:repeat(2,1fr)}
  .faq-layout{grid-template-columns:1fr;gap:32px}
  .cta-inner{flex-direction:column;align-items:flex-start;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .footer-brand{grid-column:1 / -1}
}
@media (max-width:767.98px){
  body{font-size:16px}
  .cat-hero{min-height:200px;padding:44px 0}
  .cat-hero-sub{font-size:16px}
  .fact{padding:20px}
  .flow-grid{grid-template-columns:1fr}
}
@media (max-width:575.98px){
  .container{padding:0 16px}
  .xk-feature{padding:20px}
  .facticle{padding:20px}
  .xk-flow,.xk-faq,.cat-body{padding:48px 0}
  .xk-cta-band{padding:48px 0}
  .cta-actions{width:100%;flex-direction:column}
  .cta-actions .xk-btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .xk-acc-panel{padding-right:0}
}

/* roulang page: category2 */
:root{
  --xk-deep:#0C2A2B;
  --xk-primary:#12857C;
  --xk-primary-600:#0E6B64;
  --xk-primary-100:#E3F1EF;
  --xk-accent:#E07A5F;
  --xk-accent-600:#C96448;
  --xk-paper:#F7F4EE;
  --xk-paper-2:#EDF2F0;
  --xk-ink:#14201F;
  --xk-ink-2:#2B3A39;
  --xk-muted:#6B7C7A;
  --xk-line:#DCE5E2;
  --xk-star:#F2C879;
  --r-sm:8px; --r-md:14px; --r-lg:20px; --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,42,43,.05);
  --sh-2:0 10px 24px rgba(12,42,43,.10);
  --sh-3:0 18px 40px rgba(12,42,43,.14);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",ui-monospace,monospace;
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  color:var(--xk-ink-2);
  background:var(--xk-paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{color:var(--xk-ink);margin:0;font-weight:700;letter-spacing:0}
h1{font-size:clamp(30px,3.4vw,44px);line-height:1.28;font-weight:700}
h2{font-size:28px;line-height:1.35;font-weight:700}
h3{font-size:20px;line-height:1.45;font-weight:600}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
a{color:var(--xk-primary);text-decoration:none;transition:color .18s ease,border-color .18s ease}
a:hover{color:var(--xk-primary-600)}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--xk-primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

/* ---------- 顶部导航 ---------- */
.xk-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,244,238,.97);
  border-bottom:1px solid var(--xk-line);
  backdrop-filter:blur(4px);
  transition:box-shadow .2s ease;
}
.xk-header.is-stuck{box-shadow:0 6px 18px rgba(12,42,43,.09)}
.xk-nav{display:flex;align-items:center;justify-content:space-between;gap:20px;height:var(--nav-h)}
.xk-nav-left{display:flex;align-items:center;gap:40px;min-width:0}
.xk-nav-right{display:flex;align-items:center;gap:12px}
.xk-logo{display:inline-flex;align-items:center;gap:10px;color:var(--xk-ink);font-weight:700;font-size:18px;letter-spacing:.2px}
.xk-logo svg{width:28px;height:28px;flex:0 0 28px}
.xk-logo:hover{color:var(--xk-ink)}
.xk-channels{display:flex;align-items:center;gap:28px}
.xk-channels a{
  position:relative;
  font-size:15px;color:var(--xk-ink-2);padding:6px 0;
}
.xk-channels a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--xk-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;border-radius:2px;
}
.xk-channels a:hover{color:var(--xk-primary)}
.xk-channels a:hover::after{transform:scaleX(1)}
.xk-channels a.active{color:var(--xk-primary);font-weight:600}
.xk-channels a.active::after{transform:scaleX(1)}
.xk-icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--xk-line);border-radius:10px;background:transparent;color:var(--xk-ink-2);
  transition:border-color .18s ease,color .18s ease,background .18s ease;cursor:pointer;
}
.xk-icon-btn:hover{border-color:var(--xk-primary);color:var(--xk-primary);background:var(--xk-primary-100)}
.xk-burger{display:none}
.xk-search-panel{
  position:absolute;left:0;right:0;top:100%;
  background:#fff;border-bottom:1px solid var(--xk-line);box-shadow:var(--sh-2);
  display:none;
}
.xk-search-panel.open{display:block}
.xk-search-inner{max-width:360px;padding:20px 0 22px}
.xk-search-inner label{display:block;font-size:13px;color:var(--xk-muted);margin-bottom:8px}
.xk-search-inner input{
  width:100%;height:44px;border-radius:10px;border:1px solid var(--xk-line);
  padding:0 14px;font-size:15px;color:var(--xk-ink-2);background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.xk-search-inner input:focus{outline:none;border-color:var(--xk-primary);box-shadow:0 0 0 3px rgba(18,133,124,.14)}
.xk-search-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.xk-search-tags a{
  display:inline-block;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--xk-primary-100);color:var(--xk-primary-600);font-size:13px;
}
.xk-search-tags a:hover{background:var(--xk-primary);color:#fff}

/* ---------- 抽屉 ---------- */
.xk-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(84vw,340px);
  background:var(--xk-paper);z-index:1060;transform:translateX(102%);
  transition:transform .28s ease;display:flex;flex-direction:column;
  padding:22px 22px 28px;overflow-y:auto;border-left:1px solid var(--xk-line);
}
.xk-drawer.open{transform:translateX(0)}
.xk-drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:22px}
.xk-drawer-links{display:flex;flex-direction:column;border-top:1px solid var(--xk-line)}
.xk-drawer-links a{
  padding:15px 2px;border-bottom:1px solid var(--xk-line);color:var(--xk-ink-2);font-size:16px;
}
.xk-drawer-links a:hover,.xk-drawer-links a.active{color:var(--xk-primary)}
.xk-drawer-cta{margin-top:24px;display:flex;flex-direction:column;gap:12px}
.xk-drawer-note{margin-top:22px;font-size:13px;line-height:1.75;color:var(--xk-muted)}
.xk-backdrop{
  position:fixed;inset:0;background:rgba(12,42,43,.42);z-index:1055;
  opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease;
}
.xk-backdrop.open{opacity:1;visibility:visible}

/* ---------- 按钮 ---------- */
.xk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:10px;font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.xk-btn-sm{height:40px;padding:0 18px;font-size:14px}
.xk-btn-primary{background:var(--xk-accent);color:#fff;box-shadow:var(--sh-1)}
.xk-btn-primary:hover{background:var(--xk-accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.xk-btn-primary:active{transform:translateY(0);box-shadow:var(--sh-1)}
.xk-btn-ghost{background:transparent;border-color:var(--xk-primary);color:var(--xk-primary)}
.xk-btn-ghost:hover{background:rgba(18,133,124,.08);color:var(--xk-primary-600);border-color:var(--xk-primary-600)}
.xk-btn-quiet{background:#fff;border-color:var(--xk-line);color:var(--xk-ink-2)}
.xk-btn-quiet:hover{border-color:var(--xk-primary);color:var(--xk-primary)}
.xk-btn[disabled],.xk-btn.is-disabled{opacity:.5;pointer-events:none;transform:none}
.xk-link{color:var(--xk-primary);text-decoration:underline;text-underline-offset:4px}
.xk-link:hover{color:var(--xk-primary-600)}

/* ---------- 通用板块 ---------- */
.xk-section{padding:88px 0}
.xk-section.tight{padding-top:64px}
.xk-section.alt{background:var(--xk-paper-2)}
.xk-eyebrow{
  display:inline-block;font-size:13px;letter-spacing:.08em;color:var(--xk-primary-600);
  background:var(--xk-primary-100);border-radius:var(--r-pill);padding:5px 14px;margin-bottom:16px;
}
.xk-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px}
.xk-section-head p{margin-top:14px;max-width:720px;color:var(--xk-muted);font-size:16px}
.xk-h2-bar{position:relative;padding-left:16px}
.xk-h2-bar::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:4px;border-radius:2px;background:var(--xk-primary);
}

/* ---------- 页头 ---------- */
.xk-pagehead{
  position:relative;color:#fff;padding:64px 0 68px;
  background-image:linear-gradient(96deg,rgba(12,42,43,.94) 0%,rgba(12,42,43,.80) 52%,rgba(12,42,43,.62) 100%),
                   url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.xk-pagehead::after{
  content:"";position:absolute;right:8%;top:26px;width:6px;height:6px;border-radius:50%;
  background:var(--xk-star);box-shadow:120px 46px 0 0 rgba(242,200,121,.7),-90px 96px 0 0 rgba(242,200,121,.55),64px 128px 0 0 rgba(242,200,121,.4);
  pointer-events:none;
}
.xk-crumb{font-size:14px;color:rgba(255,255,255,.72);margin-bottom:18px}
.xk-crumb a{color:rgba(255,255,255,.86)}
.xk-crumb a:hover{color:var(--xk-star)}
.xk-crumb span{margin:0 8px;color:rgba(255,255,255,.45)}
.xk-pagehead h1{color:#fff;max-width:900px}
.xk-pagehead .lead{
  margin-top:20px;max-width:720px;font-size:17px;line-height:1.9;color:rgba(255,255,255,.86);
}
.xk-pagehead-meta{display:flex;flex-wrap:wrap;gap:28px;margin-top:30px}
.xk-pagehead-meta div{min-width:120px}
.xk-pagehead-meta .v{font-family:var(--font-num);font-size:26px;font-weight:700;color:#fff;line-height:1.2}
.xk-pagehead-meta .k{font-size:13px;color:rgba(255,255,255,.66);margin-top:4px}

/* ---------- 参数徽章行 ---------- */
.xk-badgerow{
  display:grid;grid-template-columns:repeat(4,1fr);
  background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md);
  margin-top:-34px;position:relative;z-index:3;box-shadow:var(--sh-2);overflow:hidden;
}
.xk-badgerow .item{padding:22px 24px;border-right:1px solid var(--xk-line)}
.xk-badgerow .item:last-child{border-right:0}
.xk-badgerow .item .k{font-size:13px;color:var(--xk-muted);letter-spacing:.02em}
.xk-badgerow .item .v{font-family:var(--font-num);font-size:22px;font-weight:700;color:var(--xk-ink);margin-top:6px}
.xk-badgerow .item .d{font-size:13px;color:var(--xk-muted);margin-top:4px}

/* ---------- 对比表格 ---------- */
.xk-table-wrap{
  background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md);
  box-shadow:var(--sh-1);overflow:hidden;
}
.xk-table-scroll{overflow-x:auto}
table.xk-table{width:100%;min-width:760px;border-collapse:collapse;font-size:15.5px}
table.xk-table thead th{
  background:var(--xk-primary-100);color:var(--xk-ink);
  font-weight:600;font-size:15px;text-align:left;
  padding:18px 20px;border:0;white-space:nowrap;
}
table.xk-table thead th:first-child{color:var(--xk-primary-600)}
table.xk-table tbody td{
  padding:18px 20px;border:0;border-top:1px solid var(--xk-line);
  color:var(--xk-ink-2);line-height:1.75;vertical-align:top;
}
table.xk-table tbody tr:nth-child(even) td{background:#FAFCFB}
table.xk-table tbody th{
  padding:18px 20px;border:0;border-top:1px solid var(--xk-line);
  text-align:left;font-size:15.5px;font-weight:600;color:var(--xk-ink);background:#fff;
  white-space:nowrap;
}
table.xk-table tbody tr:nth-child(even) th{background:#FAFCFB}
table.xk-table .tick{display:inline-flex;align-items:center;gap:8px}
table.xk-table .tick svg{width:16px;height:16px;flex:0 0 16px;color:var(--xk-primary)}
.xk-table-note{margin-top:16px;font-size:14px;color:var(--xk-muted)}

/* ---------- 规格卡 ---------- */
.xk-spec-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.xk-spec{
  background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md);
  padding:28px;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.xk-spec:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(18,133,124,.4)}
.xk-spec-top{display:flex;align-items:center;gap:12px;margin-bottom:14px}
.xk-spec-icon{
  width:42px;height:42px;border-radius:12px;background:var(--xk-primary-100);
  display:inline-flex;align-items:center;justify-content:center;color:var(--xk-primary);
}
.xk-spec-icon svg{width:22px;height:22px}
.xk-spec h3{font-size:19px}
.xk-spec p{color:var(--xk-ink-2);font-size:15.5px;margin-bottom:14px}
.xk-spec ul{display:flex;flex-direction:column;gap:8px}
.xk-spec li{position:relative;padding-left:18px;font-size:15px;color:var(--xk-ink-2)}
.xk-spec li::before{
  content:"";position:absolute;left:0;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--xk-primary);opacity:.75;
}

/* ---------- 选择建议 ---------- */
.xk-advice-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.xk-advice{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--xk-line);
  border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.xk-advice:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(18,133,124,.35)}
.xk-advice figure{margin:0;aspect-ratio:16/9;overflow:hidden;background:var(--xk-paper-2)}
.xk-advice figure img{width:100%;height:100%;object-fit:cover}
.xk-advice-body{padding:26px 28px 28px}
.xk-advice-body h3{margin-bottom:10px}
.xk-advice-body p{font-size:15.5px;color:var(--xk-ink-2)}
.xk-advice-tags{display:flex;flex-wrap:wrap;gap:8px;margin:14px 0 18px}
.xk-tag{
  display:inline-block;padding:4px 12px;border-radius:var(--r-pill);
  background:var(--xk-primary-100);color:var(--xk-primary-600);font-size:13px;
}
.xk-arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--xk-primary)}
.xk-arrow-link svg{width:15px;height:15px;transition:transform .18s ease}
.xk-arrow-link:hover svg{transform:translateX(3px)}

/* ---------- FAQ ---------- */
.xk-acc{border-top:1px solid var(--xk-line)}
.xk-acc .accordion-item{
  border:0;border-bottom:1px solid var(--xk-line);background:transparent;margin-bottom:12px;
}
.xk-acc .accordion-header{margin:0}
.xk-acc .accordion-button{
  width:100%;min-height:56px;padding:16px 44px 16px 18px;position:relative;
  background:transparent;border:0;border-radius:var(--r-sm);
  font-size:16px;font-weight:600;color:var(--xk-ink);line-height:1.6;
  box-shadow:none;transition:background .18s ease,color .18s ease;
}
.xk-acc .accordion-button::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:2px;
  background:var(--xk-primary);opacity:0;transition:opacity .2s ease;
}
.xk-acc .accordion-button::after{
  content:"";position:absolute;right:16px;top:50%;width:10px;height:10px;
  border-right:2px solid var(--xk-muted);border-bottom:2px solid var(--xk-muted);
  transform:translateY(-70%) rotate(45deg);background:none;transition:transform .2s ease,border-color .2s ease;
}
.xk-acc .accordion-button:not(.collapsed){
  background:transparent;color:var(--xk-primary-600);box-shadow:none;
}
.xk-acc .accordion-button:not(.collapsed)::before{opacity:1}
.xk-acc .accordion-button:not(.collapsed)::after{
  transform:translateY(-30%) rotate(-135deg);border-color:var(--xk-primary);
}
.xk-acc .accordion-button:focus{box-shadow:0 0 0 3px rgba(18,133,124,.14);outline:none}
.xk-acc .accordion-button:hover{background:rgba(18,133,124,.05)}
.xk-acc .accordion-body{padding:0 46px 22px 18px;font-size:16px;line-height:1.9;color:var(--xk-ink-2)}

/* ---------- CTA 带 ---------- */
.xk-cta-band{
  position:relative;background:var(--xk-deep);color:#fff;padding:72px 0;overflow:hidden;
}
.xk-cta-band::before,
.xk-cta-band::after{
  content:"";position:absolute;border-radius:50%;background:var(--xk-star);pointer-events:none;
}
.xk-cta-band::before{width:6px;height:6px;left:12%;top:34px;opacity:.85}
.xk-cta-band::after{width:4px;height:4px;right:16%;bottom:38px;opacity:.6}
.xk-cta-inner{display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap}
.xk-cta-inner h2{color:#fff;max-width:620px}
.xk-cta-inner p{color:rgba(255,255,255,.78);margin-top:14px;max-width:620px;font-size:16px}
.xk-cta-actions{display:flex;gap:14px;flex-wrap:wrap}
.xk-cta-band .xk-btn-ghost{border-color:rgba(255,255,255,.55);color:#fff}
.xk-cta-band .xk-btn-ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff}

/* ---------- 页脚 ---------- */
.xk-footer{background:var(--xk-deep);color:rgba(255,255,255,.78);padding:64px 0 28px}
.xk-footer .xk-logo{color:#fff}
.xk-footer .xk-logo:hover{color:var(--xk-star)}
.footer-grid{
  display:grid;grid-template-columns:4fr 2fr 2fr 4fr;gap:32px;
}
.footer-brand p{margin-top:16px;font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:280px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:rgba(255,255,255,.78);font-size:14px}
.footer-col a:hover{color:var(--xk-star)}
.footer-contact li{display:flex;gap:12px;font-size:14px;color:rgba(255,255,255,.7)}
.footer-contact li span:first-child{color:rgba(255,255,255,.5);min-width:36px}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .container{max-width:960px}
}
@media (max-width:991.98px){
  :root{--nav-h:56px}
  .xk-channels{display:none}
  .xk-nav-left{gap:0}
  .xk-nav-cta{display:none}
  .xk-burger{display:inline-flex}
  .xk-section{padding:64px 0}
  .xk-section.tight{padding-top:48px}
  .xk-badgerow{grid-template-columns:repeat(2,1fr);margin-top:-26px}
  .xk-badgerow .item:nth-child(2){border-right:0}
  .xk-badgerow .item:nth-child(1),
  .xk-badgerow .item:nth-child(2){border-bottom:1px solid var(--xk-line)}
  .xk-spec-grid,.xk-advice-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px 24px}
  .xk-cta-inner{flex-direction:column;align-items:flex-start}
}
@media (max-width:767.98px){
  body{font-size:16px}
  h2{font-size:24px}
  h3{font-size:18px}
  .xk-section{padding:48px 0}
  .xk-pagehead{padding:44px 0 52px}
  .xk-pagehead-meta{gap:20px}
  .xk-badgerow{grid-template-columns:1fr;margin-top:0;border-radius:var(--r-md)}
  .xk-badgerow .item{border-right:0;border-bottom:1px solid var(--xk-line)}
  .xk-badgerow .item:last-child{border-bottom:0}
  .xk-section-head{flex-direction:column;align-items:flex-start;margin-bottom:26px}
  .xk-cta-band{padding:56px 0}
  .xk-acc .accordion-button{padding-right:38px}
  .xk-acc .accordion-body{padding-right:24px}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px}
  .xk-spec,.xk-advice-body{padding:22px 20px}
  .xk-btn{width:100%}
  .xk-btn.xk-btn-auto{width:auto}
  .xk-cta-actions{width:100%}
  .footer-grid{grid-template-columns:1fr}
}

/* roulang page: category3 */
:root{
  --xk-deep:#0C2A2B;
  --xk-primary:#12857C;
  --xk-primary-600:#0E6B64;
  --xk-primary-100:#E3F1EF;
  --xk-accent:#E07A5F;
  --xk-accent-600:#C96448;
  --xk-paper:#F7F4EE;
  --xk-paper-2:#EDF2F0;
  --xk-ink:#14201F;
  --xk-ink-2:#2B3A39;
  --xk-muted:#6B7C7A;
  --xk-line:#DCE5E2;
  --xk-star:#F2C879;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",ui-monospace,monospace;
  --r-sm:8px;--r-md:14px;--r-lg:20px;--r-pill:999px;
  --sh-1:0 1px 2px rgba(12,42,43,.05);
  --sh-2:0 10px 24px rgba(12,42,43,.10);
  --sh-3:0 18px 40px rgba(12,42,43,.14);
  --nav-h:64px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;font-family:var(--font-sans);font-size:17px;line-height:1.9;font-weight:400;
  color:var(--xk-ink-2);background:var(--xk-paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--xk-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--xk-primary-600)}
h1,h2,h3,h4{margin:0;font-family:var(--font-sans);color:var(--xk-ink);font-weight:700;line-height:1.35}
h1{font-size:clamp(30px,3.4vw,44px);line-height:1.28}
h2{font-size:28px}
h3{font-size:20px;font-weight:600;line-height:1.45}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}
:focus-visible{outline:2px solid var(--xk-primary);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.xk-section{padding:88px 0}
.xk-section.alt{background:var(--xk-paper-2)}

/* ============ 导航 ============ */
.xk-header{
  position:sticky;top:0;z-index:1040;background:rgba(247,244,238,.97);
  border-bottom:1px solid var(--xk-line);backdrop-filter:blur(4px);
  transition:box-shadow .22s ease;
}
.xk-header.is-scrolled{box-shadow:var(--sh-2)}
.xk-nav-inner{
  max-width:1200px;margin:0 auto;padding:0 24px;height:var(--nav-h);
  display:flex;align-items:center;gap:24px;
}
.xk-logo{
  display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:700;
  color:var(--xk-ink);letter-spacing:.2px;flex:0 0 auto;
}
.xk-logo svg{width:28px;height:28px;flex:0 0 auto}
.xk-logo:hover{color:var(--xk-primary-600)}
.xk-channels{display:flex;align-items:center;gap:28px;flex:1 1 auto}
.xk-channels a{
  position:relative;font-size:15px;color:var(--xk-ink-2);padding:6px 0;white-space:nowrap;
}
.xk-channels a::after{
  content:"";position:absolute;left:0;right:100%;bottom:0;height:2px;
  background:var(--xk-primary);transition:right .22s ease;
}
.xk-channels a:hover{color:var(--xk-primary)}
.xk-channels a:hover::after{right:0}
.xk-channels a.active{color:var(--xk-primary);font-weight:600}
.xk-channels a.active::after{right:0}
.xk-nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.icon-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--xk-line);background:#fff;border-radius:10px;color:var(--xk-ink-2);
  cursor:pointer;transition:.18s ease;
}
.icon-btn:hover{border-color:var(--xk-primary);color:var(--xk-primary)}
.icon-btn svg{width:18px;height:18px}
.xk-burger{display:none}

/* 按钮 */
.btn-xk-primary,.btn-xk-ghost,.btn-xk-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:10px;font-size:16px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:.2s ease;white-space:nowrap;
}
.btn-xk-primary{background:var(--xk-accent);color:#fff}
.btn-xk-primary:hover{background:var(--xk-accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-xk-primary:active{transform:none;box-shadow:var(--sh-1)}
.btn-xk-ghost{background:transparent;color:var(--xk-primary);border-color:var(--xk-primary)}
.btn-xk-ghost:hover{background:rgba(18,133,124,.08);color:var(--xk-primary-600);border-color:var(--xk-primary-600)}
.btn-xk-light{background:#fff;color:var(--xk-deep)}
.btn-xk-light:hover{background:#fff;color:var(--xk-primary-600);transform:translateY(-1px);box-shadow:var(--sh-2)}
.btn-xk-sm{height:40px;padding:0 18px;font-size:15px}

/* 搜索面板 */
.xk-search-panel{
  position:absolute;top:calc(100% + 8px);right:24px;width:320px;background:#fff;
  border:1px solid var(--xk-line);border-radius:var(--r-md);box-shadow:var(--sh-3);
  padding:16px;display:none;
}
.xk-search-panel.open{display:block}
.xk-search-input{
  width:100%;height:44px;border:1px solid var(--xk-line);border-radius:10px;
  padding:0 14px;font-size:15px;color:var(--xk-ink);background:var(--xk-paper);
}
.xk-search-input:focus{outline:none;border-color:var(--xk-primary);box-shadow:0 0 0 3px rgba(18,133,124,.12);background:#fff}
.xk-search-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.xk-search-tags a{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--xk-primary-100);color:var(--xk-primary-600);font-size:13px;
}
.xk-search-tags a:hover{background:var(--xk-primary);color:#fff}

/* 移动抽屉 */
.xk-drawer{
  position:fixed;top:0;right:0;bottom:0;width:min(86vw,340px);background:var(--xk-paper);
  z-index:1060;transform:translateX(102%);transition:transform .28s ease;
  padding:20px 22px 32px;display:flex;flex-direction:column;gap:22px;overflow-y:auto;
  box-shadow:var(--sh-3);
}
.xk-drawer.open{transform:translateX(0)}
.xk-drawer-head{display:flex;align-items:center;justify-content:space-between;gap:12px}
.xk-drawer-nav{display:flex;flex-direction:column;border-top:1px solid var(--xk-line)}
.xk-drawer-nav a{
  padding:15px 0;border-bottom:1px solid var(--xk-line);font-size:16px;color:var(--xk-ink-2);
}
.xk-drawer-nav a.active{color:var(--xk-primary);font-weight:600}
.xk-mask{
  position:fixed;inset:0;background:rgba(12,42,43,.42);z-index:1050;opacity:0;visibility:hidden;
  transition:.28s ease;
}
.xk-mask.open{opacity:1;visibility:visible}

/* ============ 页头 ============ */
.xk-hero{
  position:relative;color:#fff;background-color:var(--xk-deep);
  background-image:linear-gradient(112deg,rgba(12,42,43,.93) 0%,rgba(12,42,43,.80) 52%,rgba(12,42,43,.62) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  padding:104px 0 64px;
}
.xk-hero h1{color:#fff;max-width:820px}
.xk-hero .hero-sub{color:rgba(255,255,255,.82);font-size:17px;line-height:1.9;max-width:680px;margin-top:18px}
.xk-breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.62);margin-bottom:18px}
.xk-breadcrumb a{color:rgba(255,255,255,.78)}
.xk-breadcrumb a:hover{color:var(--xk-star)}
.xk-badge{
  display:inline-flex;align-items:center;height:28px;padding:0 14px;border-radius:var(--r-pill);
  font-size:13px;background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.22);
  margin-bottom:16px;
}
.hero-meta{display:flex;flex-wrap:wrap;gap:14px 32px;margin-top:26px;font-size:14px;color:rgba(255,255,255,.72)}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-meta .dot{width:6px;height:6px;border-radius:50%;background:var(--xk-star);display:inline-block}
.hero-meta b{font-family:var(--font-num);font-weight:700;color:#fff}

/* ============ 指标 ============ */
.metric-strip{
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--xk-line);
  border:1px solid var(--xk-line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh-1);
}
.metric-cell{background:#fff;padding:28px 24px}
.metric-num{font-family:var(--font-num);font-size:40px;font-weight:700;color:var(--xk-ink);line-height:1.1}
.metric-num small{font-size:17px;font-weight:600;color:var(--xk-muted);margin-left:4px}
.metric-label{font-size:14px;color:var(--xk-muted);margin-top:8px}
.metric-bar{height:4px;background:var(--xk-paper-2);border-radius:99px;margin-top:16px;overflow:hidden}
.metric-bar i{display:block;height:100%;background:var(--xk-primary);border-radius:99px}

/* ============ 通用板块头 ============ */
.xk-head{max-width:760px;margin-bottom:36px}
.xk-eyebrow{font-size:13px;font-weight:600;color:var(--xk-primary);letter-spacing:.08em}
.xk-head h2{margin:8px 0 12px}
.xk-head p{font-size:16px;color:var(--xk-muted);margin:0}

/* ============ 时间轴 ============ */
.xk-timeline{position:relative;padding-left:40px}
.xk-timeline::before{
  content:"";position:absolute;left:12px;top:16px;bottom:16px;width:2px;
  background:var(--xk-primary);opacity:.28;border-radius:2px;
}
.xk-tl-item{position:relative;padding-bottom:24px}
.xk-tl-item:last-child{padding-bottom:0}
.xk-tl-item::before{
  content:"";position:absolute;left:-34px;top:24px;width:14px;height:14px;border-radius:50%;
  background:#fff;border:3px solid var(--xk-primary);box-shadow:0 0 0 3px rgba(18,133,124,.10);
}
.xk-tl-card{
  background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md);
  padding:24px 28px;box-shadow:var(--sh-1);transition:.2s ease;
}
.xk-tl-card:hover{box-shadow:var(--sh-2);border-color:rgba(18,133,124,.32)}
.xk-tl-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:14px}
.xk-ver{font-family:var(--font-num);font-size:20px;font-weight:700;color:var(--xk-ink)}
.xk-date{font-family:var(--font-num);font-size:14px;color:var(--xk-muted)}
.xk-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);
  font-size:13px;line-height:1;background:var(--xk-primary-100);color:var(--xk-primary-600);
}
.xk-tag.tag-opt{background:rgba(242,200,121,.26);color:#8A6A1F}
.xk-tag.tag-fix{background:rgba(224,122,95,.14);color:var(--xk-accent-600)}
.xk-tl-list li{
  position:relative;padding-left:18px;font-size:16px;line-height:1.85;color:var(--xk-ink-2);
  margin-bottom:8px;
}
.xk-tl-list li:last-child{margin-bottom:0}
.xk-tl-list li::before{
  content:"";position:absolute;left:0;top:12px;width:6px;height:6px;border-radius:50%;background:var(--xk-star);
}

/* ============ 规则卡 ============ */
.rule-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.rule-card{
  background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md);
  padding:26px 24px;transition:.2s ease;
}
.rule-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(18,133,124,.32)}
.rule-card .idx{font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--xk-primary)}
.rule-card h3{font-size:18px;margin:10px 0 8px}
.rule-card p{font-size:15px;line-height:1.8;color:var(--xk-muted);margin:0}

/* ============ 图文条 ============ */
.feature-band{
  display:grid;grid-template-columns:5fr 7fr;background:#fff;border:1px solid var(--xk-line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
}
.feature-band .fb-media{position:relative;min-height:260px}
.feature-band .fb-media img{width:100%;height:100%;object-fit:cover;aspect-ratio:16/10}
.feature-band .fb-body{padding:36px 36px 36px 32px;display:flex;flex-direction:column;justify-content:center}
.feature-band .fb-body h3{font-size:22px;margin-bottom:12px}
.feature-band .fb-body p{font-size:16px;color:var(--xk-ink-2);line-height:1.9}
.fb-points{display:flex;flex-wrap:wrap;gap:8px;margin:16px 0 20px}
.fb-points span{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:var(--r-pill);
  background:var(--xk-paper-2);color:var(--xk-ink-2);font-size:13px;
}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;
  color:var(--xk-primary);text-decoration:underline;text-underline-offset:4px;
}
.link-arrow:hover{color:var(--xk-primary-600);gap:10px}

/* ============ 流程 ============ */
.step-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step-card{
  background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md);
  padding:26px 24px;transition:.2s ease;
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2)}
.step-card .step-num{
  display:inline-flex;align-items:center;justify-content:center;width:40px;height:40px;
  border-radius:12px;background:var(--xk-primary-100);color:var(--xk-primary-600);
  font-family:var(--font-num);font-size:16px;font-weight:700;margin-bottom:16px;
}
.step-card h3{font-size:18px;margin-bottom:8px}
.step-card p{font-size:15px;line-height:1.8;color:var(--xk-muted);margin:0}

/* ============ FAQ ============ */
.xk-faq{max-width:920px}
.xk-faq-item{
  background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease;
}
.xk-faq-item.open{border-color:rgba(18,133,124,.36)}
.xk-faq-q{
  width:100%;min-height:56px;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:16px 24px;background:none;border:0;text-align:left;cursor:pointer;
  font-size:16px;font-weight:600;color:var(--xk-ink);line-height:1.6;
}
.xk-faq-q::-moz-focus-inner{border:0}
.xk-faq-q .chev{
  flex:0 0 auto;width:18px;height:18px;color:var(--xk-muted);transition:transform .24s ease,color .2s ease;
}
.xk-faq-item.open .xk-faq-q .chev{transform:rotate(180deg);color:var(--xk-primary)}
.xk-faq-a{
  max-height:0;overflow:hidden;transition:max-height .3s ease,padding .3s ease;
  padding:0 24px;font-size:16px;line-height:1.9;color:var(--xk-ink-2);
  border-left:3px solid transparent;
}
.xk-faq-item.open .xk-faq-a{max-height:400px;padding:2px 24px 22px;border-left-color:var(--xk-primary)}

/* ============ CTA ============ */
.cta-band{background:var(--xk-deep);color:#fff;padding:56px 0}
.cta-inner{display:grid;grid-template-columns:7fr 5fr;gap:32px;align-items:center}
.cta-band h2{color:#fff;font-size:26px;line-height:1.4}
.cta-band p{color:rgba(255,255,255,.78);font-size:16px;margin:12px 0 0}
.cta-actions{display:flex;gap:12px;justify-content:flex-end;flex-wrap:wrap}

/* ============ 页脚 ============ */
.xk-footer{
  background:var(--xk-deep);color:rgba(255,255,255,.78);padding:64px 0 28px;
  border-top:1px solid rgba(255,255,255,.10);
}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 2fr 4fr;gap:32px}
.footer-brand .xk-logo{color:#fff;font-size:18px}
.footer-brand .xk-logo:hover{color:var(--xk-star)}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);margin-top:14px;max-width:280px}
.footer-col h4{color:#fff;font-size:15px;font-weight:600;margin-bottom:14px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:rgba(255,255,255,.74);font-size:14px}
.footer-col a:hover{color:var(--xk-star)}
.footer-contact li{display:flex;gap:10px;font-size:14px;margin-bottom:10px;color:rgba(255,255,255,.76)}
.footer-contact li span:first-child{color:rgba(255,255,255,.48);min-width:36px;flex:0 0 auto}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:36px;padding-top:20px;
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{max-width:960px}
  .feature-band{grid-template-columns:1fr 1fr}
}
@media (max-width:991px){
  .container{max-width:100%;padding:0 20px}
  .xk-nav-inner{padding:0 20px;height:56px;gap:12px}
  .xk-channels{display:none}
  .xk-burger{display:inline-flex}
  .xk-nav-actions .btn-xk-primary{display:none}
  .xk-section{padding:64px 0}
  .xk-hero{padding:88px 0 52px}
  .metric-strip{grid-template-columns:repeat(2,1fr)}
  .rule-grid{grid-template-columns:repeat(2,1fr)}
  .step-grid{grid-template-columns:repeat(2,1fr)}
  .cta-inner{grid-template-columns:1fr}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .xk-search-panel{right:16px;left:16px;width:auto}
}
@media (max-width:767px){
  body{font-size:16px}
  .xk-section{padding:48px 0}
  .xk-hero{padding:76px 0 44px}
  .xk-hero .hero-sub{font-size:16px}
  .feature-band{grid-template-columns:1fr}
  .feature-band .fb-body{padding:28px 24px}
  .xk-timeline{padding-left:28px}
  .xk-timeline::before{left:10px}
  .xk-tl-item::before{left:-24px;top:26px}
  .xk-tl-card{padding:20px}
  .metric-num{font-size:32px}
  .xk-faq-a{font-size:15px}
  .xk-faq-item.open .xk-faq-a{padding:2px 20px 18px}
  .xk-faq-q{padding:14px 20px}
  .footer-grid{grid-template-columns:1fr}
}
@media (max-width:575px){
  .container{padding:0 16px}
  .metric-cell{padding:20px 18px}
  .rule-grid{grid-template-columns:1fr}
  .step-grid{grid-template-columns:1fr}
  .rule-card,.step-card{padding:20px}
  .btn-xk-primary,.btn-xk-ghost,.btn-xk-light{width:100%;padding:0 18px}
  .cta-actions{flex-direction:column;align-items:stretch}
  .xk-nav-inner{padding:0 16px}
  .xk-hero{padding:68px 0 40px}
}

/* roulang page: category4 */
:root{
  --xk-deep:#0C2A2B;
  --xk-primary:#12857C;
  --xk-primary-600:#0E6B64;
  --xk-primary-100:#E3F1EF;
  --xk-accent:#E07A5F;
  --xk-accent-600:#C96448;
  --xk-paper:#F7F4EE;
  --xk-paper-2:#EDF2F0;
  --xk-ink:#14201F;
  --xk-ink-2:#2B3A39;
  --xk-muted:#6B7C7A;
  --xk-line:#DCE5E2;
  --xk-star:#F2C879;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Source Han Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"DIN Alternate","Bahnschrift",ui-monospace,monospace;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --r-pill:999px;
  --sh-1:0 1px 2px rgba(12,42,43,.05);
  --sh-2:0 10px 24px rgba(12,42,43,.10);
  --sh-3:0 18px 40px rgba(12,42,43,.14);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.9;
  color:var(--xk-ink-2);
  background:var(--xk-paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--xk-primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--xk-primary-600);}
button{font:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;color:var(--xk-ink);font-weight:700;}
h1{font-size:clamp(30px,3.4vw,44px);line-height:1.28;font-weight:700;}
h2{font-size:28px;line-height:1.35;}
h3{font-size:20px;line-height:1.45;font-weight:600;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--xk-primary);outline-offset:2px;}
.num{font-family:var(--font-num);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}
.xk-section{padding:88px 0;}
.xk-section-alt{background:var(--xk-paper-2);}
.xk-h2{margin-bottom:20px;}
.xk-lead{font-size:17px;line-height:1.9;color:var(--xk-muted);max-width:760px;}

/* ---------- 导航 ---------- */
.xk-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,244,238,.97);
  border-bottom:1px solid var(--xk-line);
  transition:box-shadow .2s ease;
}
.xk-header.is-scrolled{box-shadow:var(--sh-2);}
.xk-header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px;}
.xk-header-left{display:flex;align-items:center;gap:36px;min-width:0;}
.xk-header-right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.xk-logo{display:inline-flex;align-items:center;gap:10px;color:var(--xk-ink);font-weight:700;font-size:18px;letter-spacing:0;white-space:nowrap;}
.xk-logo:hover{color:var(--xk-ink);}
.xk-logo svg{width:27px;height:27px;flex:0 0 auto;}
.xk-channels{display:flex;align-items:center;gap:28px;}
.xk-channels a{position:relative;font-size:15px;color:var(--xk-ink-2);padding:6px 0;white-space:nowrap;}
.xk-channels a:hover{color:var(--xk-primary);}
.xk-channels a.active{color:var(--xk-primary);font-weight:600;}
.xk-channels a.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--xk-primary);border-radius:2px;}
.xk-search-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:7px;
  height:38px;padding:0 16px;border-radius:9px;border:1px solid var(--xk-line);
  background:#fff;color:var(--xk-ink-2);font-size:14px;transition:all .18s ease;
}
.xk-search-btn:hover{border-color:var(--xk-primary);color:var(--xk-primary);}
.xk-burger{
  display:none;width:40px;height:38px;border-radius:9px;border:1px solid var(--xk-line);
  background:#fff;align-items:center;justify-content:center;
}
.xk-burger span{display:block;width:18px;height:2px;background:var(--xk-ink);border-radius:2px;position:relative;}
.xk-burger span::before,.xk-burger span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--xk-ink);border-radius:2px;}
.xk-burger span::before{top:-6px;}
.xk-burger span::after{top:6px;}

.xk-search-panel{
  position:absolute;top:calc(100% + 1px);right:24px;width:320px;
  background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md);
  box-shadow:var(--sh-3);padding:16px;z-index:1040;
  opacity:0;visibility:hidden;transform:translateY(-6px);transition:all .18s ease;
}
.xk-search-panel.open{opacity:1;visibility:visible;transform:translateY(0);}
.xk-search-panel input{
  width:100%;height:44px;border:1px solid var(--xk-line);border-radius:10px;
  padding:0 14px;font-size:15px;color:var(--xk-ink);background:var(--xk-paper);
}
.xk-search-panel input:focus{outline:none;border-color:var(--xk-primary);box-shadow:0 0 0 3px rgba(18,133,124,.14);}
.xk-search-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.xk-search-tags a{
  font-size:13px;padding:5px 12px;border-radius:var(--r-pill);
  background:var(--xk-primary-100);color:var(--xk-primary-600);
}
.xk-search-tags a:hover{background:var(--xk-primary);color:#fff;}

.xk-mask{position:fixed;inset:0;background:rgba(12,42,43,.45);z-index:1050;opacity:0;visibility:hidden;transition:all .2s ease;}
.xk-mask.open{opacity:1;visibility:visible;}
.xk-drawer{
  position:fixed;top:0;right:0;width:min(86vw,340px);height:100%;z-index:1060;
  background:var(--xk-paper);padding:24px;display:flex;flex-direction:column;gap:6px;
  transform:translateX(100%);transition:transform .25s ease;overflow-y:auto;
  border-left:1px solid var(--xk-line);
}
.xk-drawer.open{transform:translateX(0);}
.xk-drawer h4{font-size:13px;color:var(--xk-muted);font-weight:600;letter-spacing:0;margin:14px 0 6px;}
.xk-drawer a{font-size:16px;color:var(--xk-ink-2);padding:10px 0;border-bottom:1px solid var(--xk-line);}
.xk-drawer a.active{color:var(--xk-primary);font-weight:600;}
.xk-drawer .xk-btn{margin-top:20px;}

/* ---------- 按钮 ---------- */
.xk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:10px;font-size:16px;font-weight:600;
  border:1px solid transparent;text-decoration:none;transition:all .18s ease;
}
.xk-btn-primary{background:var(--xk-accent);color:#fff;}
.xk-btn-primary:hover{background:var(--xk-accent-600);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.xk-btn-primary:active{transform:none;box-shadow:none;}
.xk-btn-ghost{background:transparent;border-color:var(--xk-primary);color:var(--xk-primary);}
.xk-btn-ghost:hover{background:rgba(18,133,124,.08);color:var(--xk-primary-600);}
.xk-btn-light{background:#fff;color:var(--xk-deep);}
.xk-btn-light:hover{background:var(--xk-primary-100);color:var(--xk-deep);transform:translateY(-1px);}
.xk-btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:9px;}
.xk-btn:disabled{opacity:.5;transform:none;box-shadow:none;cursor:not-allowed;}

/* ---------- 页头 ---------- */
.xk-pagehead{position:relative;min-height:240px;display:flex;align-items:center;background:var(--xk-deep);overflow:hidden;}
.xk-pagehead img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.4;}
.xk-pagehead::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(12,42,43,.94) 0%,rgba(12,42,43,.72) 55%,rgba(12,42,43,.52) 100%);
}
.xk-pagehead .container{position:relative;z-index:2;padding-top:62px;padding-bottom:62px;}
.xk-pagehead h1{color:#fff;margin:14px 0 14px;}
.xk-pagehead-sub{color:rgba(255,255,255,.82);font-size:17px;line-height:1.85;max-width:660px;margin:0;}
.xk-crumb{display:flex;align-items:center;gap:8px;font-size:14px;color:rgba(255,255,255,.66);}
.xk-crumb a{color:rgba(255,255,255,.82);}
.xk-crumb a:hover{color:var(--xk-star);}
.xk-crumb .cur{color:rgba(255,255,255,.66);}

/* ---------- 速览 ---------- */
.quick-grid{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;}
.quick-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:24px;}
.quick-pills a{
  font-size:14px;padding:9px 18px;border-radius:var(--r-pill);
  background:#fff;border:1px solid var(--xk-line);color:var(--xk-ink-2);
  transition:all .18s ease;
}
.quick-pills a:hover{border-color:var(--xk-primary);color:var(--xk-primary);transform:translateY(-1px);box-shadow:var(--sh-1);}
.quick-media{position:relative;}
.quick-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-lg);border:1px solid var(--xk-line);}
.quick-badge{
  position:absolute;left:-14px;bottom:22px;background:#fff;border:1px solid var(--xk-line);
  border-radius:var(--r-md);box-shadow:var(--sh-2);padding:14px 18px;
}
.quick-badge strong{display:block;font-family:var(--font-num);font-size:26px;color:var(--xk-primary);line-height:1.2;}
.quick-badge span{font-size:13px;color:var(--xk-muted);}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.faq-col{display:flex;flex-direction:column;gap:12px;}
.xk-faq-item{
  position:relative;background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.xk-faq-item:hover{border-color:rgba(18,133,124,.3);}
.xk-faq-item.open{border-color:rgba(18,133,124,.45);box-shadow:var(--sh-1);}
.xk-faq-item.open::before{content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--xk-primary);}
.xk-faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;background:transparent;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--xk-ink);line-height:1.6;
}
.xk-faq-q:focus-visible{outline:2px solid var(--xk-primary);outline-offset:-2px;}
.xk-faq-q .chev{flex:0 0 auto;width:16px;height:16px;transition:transform .2s ease;color:var(--xk-muted);}
.xk-faq-item.open .chev{transform:rotate(180deg);color:var(--xk-primary);}
.xk-faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .25s ease;}
.xk-faq-item.open .xk-faq-a{grid-template-rows:1fr;}
.xk-faq-a > div{overflow:hidden;}
.xk-faq-a p{padding:0 22px 20px;font-size:16px;line-height:1.9;color:var(--xk-ink-2);margin:0;}

/* ---------- 资源卡 ---------- */
.res-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:8px;}
.res-card{
  background:#fff;border:1px solid var(--xk-line);border-radius:var(--r-md);
  padding:28px;display:flex;flex-direction:column;gap:12px;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.res-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:rgba(18,133,124,.3);}
.res-icon{
  width:44px;height:44px;border-radius:12px;background:var(--xk-primary-100);
  display:flex;align-items:center;justify-content:center;color:var(--xk-primary);
}
.res-icon svg{width:22px;height:22px;}
.res-card p{font-size:15px;line-height:1.8;color:var(--xk-muted);margin:0;}
.res-link{margin-top:auto;font-size:15px;font-weight:600;color:var(--xk-primary);display:inline-flex;align-items:center;gap:6px;}
.res-link:hover{gap:10px;color:var(--xk-primary-600);}
.res-card .num{font-size:13px;color:var(--xk-muted);}

/* ---------- 支持说明 ---------- */
.facts{display:grid;grid-template-columns:repeat(3,1fr);border-top:1px solid var(--xk-line);border-bottom:1px solid var(--xk-line);}
.fact{padding:36px 32px;border-right:1px solid var(--xk-line);}
.fact:last-child{border-right:0;}
.fact strong{display:block;font-family:var(--font-num);font-size:32px;color:var(--xk-primary);line-height:1.3;margin-bottom:8px;}
.fact h3{font-size:17px;margin-bottom:8px;}
.fact p{font-size:15px;color:var(--xk-muted);margin:0;}

/* ---------- CTA 带 ---------- */
.xk-cta-band{background:var(--xk-deep);padding:80px 0;}
.xk-cta-band h2{color:#fff;margin-bottom:14px;}
.xk-cta-band p{color:rgba(255,255,255,.76);font-size:16px;line-height:1.85;margin:0;max-width:520px;}
.cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;}
.cta-form{display:flex;flex-wrap:wrap;gap:12px;}
.cta-form input{
  flex:1 1 240px;height:48px;border-radius:10px;border:1px solid rgba(255,255,255,.24);
  background:rgba(255,255,255,.06);padding:0 16px;font-size:15px;color:#fff;
}
.cta-form input::placeholder{color:rgba(255,255,255,.55);}
.cta-form input:focus{outline:none;border-color:var(--xk-primary);box-shadow:0 0 0 3px rgba(18,133,124,.3);}
.cta-tip{flex:1 1 100%;font-size:13px;color:rgba(255,255,255,.7);margin:2px 0 0;}
.cta-tip.is-warn{color:var(--xk-star);}

/* ---------- 页脚 ---------- */
.xk-footer{background:var(--xk-deep);color:rgba(255,255,255,.72);padding:64px 0 28px;font-size:15px;}
.footer-grid{display:grid;grid-template-columns:4fr 2fr 2fr 4fr;gap:40px;}
.xk-footer .xk-logo{color:#fff;margin-bottom:16px;}
.xk-footer .xk-logo:hover{color:#fff;}
.footer-brand p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.62);margin:0;max-width:280px;}
.footer-col h4{font-size:15px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{color:rgba(255,255,255,.72);font-size:14px;}
.footer-col a:hover{color:var(--xk-star);}
.footer-contact li{display:flex;gap:14px;font-size:14px;color:rgba(255,255,255,.72);}
.footer-contact li span:first-child{color:rgba(255,255,255,.5);min-width:44px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .container{max-width:960px;}
  .quick-grid{gap:36px;}
}
@media (max-width:991px){
  .xk-channels{display:none;}
  .xk-burger{display:inline-flex;}
  .xk-header-inner{height:56px;gap:12px;}
  .xk-section{padding:64px 0;}
  .quick-grid{grid-template-columns:1fr;gap:32px;}
  .quick-badge{left:0;bottom:16px;}
  .faq-grid{grid-template-columns:1fr;}
  .res-grid{grid-template-columns:repeat(2,1fr);}
  .facts{grid-template-columns:1fr;}
  .fact{border-right:0;border-bottom:1px solid var(--xk-line);padding:28px 4px;}
  .fact:last-child{border-bottom:0;}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .xk-search-panel{right:16px;left:16px;width:auto;}
}
@media (max-width:767px){
  body{font-size:16px;}
  h2{font-size:24px;}
  .xk-section{padding:48px 0;}
  .res-grid{grid-template-columns:1fr;}
  .xk-cta-band{padding:56px 0;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:575px){
  .container{padding:0 18px;}
  .res-card,.xk-faq-q{padding-left:18px;padding-right:18px;}
  .xk-faq-a p{padding-left:18px;padding-right:18px;}
  .xk-btn{width:100%;}
  .xk-header-right .xk-btn{width:auto;}
  .cta-form .xk-btn{width:100%;}
}