/* roulang page: index */
:root{
  --k-brand:#0E6F63;
  --k-brand-700:#0A554B;
  --k-brand-50:#EAF4F1;
  --k-brand-100:#DCEDE9;
  --k-accent:#E4693B;
  --k-accent-50:#FCEDE6;
  --k-ink:#16211F;
  --k-ink-2:#4E625E;
  --k-ink-3:#8A9A96;
  --k-line:#E3E9E6;
  --k-bg:#F7F9F7;
  --k-surface:#FFFFFF;
  --k-dark:#0B1F1C;
  --sh1:0 1px 2px rgba(11,31,28,.05);
  --sh2:0 10px 30px -14px rgba(11,31,28,.18);
  --sh3:0 24px 60px -24px rgba(11,31,28,.26);
  --r-sm:10px;
  --r-btn:12px;
  --r-card:16px;
  --r-lg:20px;
  --bs-primary:#0E6F63;
  --bs-primary-rgb:14,111,99;
  --bs-body-color:#16211F;
  --bs-body-bg:#FFFFFF;
  --bs-border-color:#E3E9E6;
  --bs-link-color:#0E6F63;
  --bs-link-hover-color:#E4693B;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --bs-body-font-family:var(--bs-font-sans-serif);
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:1.0625rem;
  line-height:1.85;
  color:var(--k-ink);
  background:var(--k-surface);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--k-brand);text-decoration:none;text-underline-offset:3px;transition:color .18s ease}
a:hover{color:var(--k-accent)}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--k-ink);font-weight:700}
h1{font-size:clamp(2rem,4.4vw,3rem);line-height:1.25}
h2{font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.3}
h3{font-size:1.25rem;line-height:1.4;font-weight:600}
p{margin:0 0 1.25em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--k-brand);outline-offset:2px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1240px}}
@media (max-width:575.98px){.container{padding:0 16px}}

.k-skip{position:absolute;left:-9999px;top:0;background:var(--k-brand);color:#fff;padding:10px 16px;border-radius:0 0 10px 0;z-index:2000}
.k-skip:focus{left:0;color:#fff}

/* ============ header ============ */
.k-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--k-line);
  transition:box-shadow .18s ease;
}
.k-header.is-scrolled{box-shadow:var(--sh1)}
.k-header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:68px}
.k-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.k-logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(150deg,var(--k-brand) 0%,var(--k-brand-700) 100%);
  display:grid;place-items:center;box-shadow:0 6px 16px -8px rgba(14,111,99,.7);
}
.k-logo-mark svg{width:20px;height:20px}
.k-logo-text{display:flex;flex-direction:column;line-height:1.15}
.k-logo-name{font-size:17px;font-weight:700;color:var(--k-ink);letter-spacing:-.01em}
.k-logo-name b{color:var(--k-brand);font-weight:700}
.k-logo-sub{font-size:11px;color:var(--k-ink-3);letter-spacing:.02em}
.k-nav-wrap{display:flex;align-items:center;gap:28px;flex:1 1 auto;justify-content:flex-end}
.k-nav{display:flex;align-items:center;gap:28px}
.k-nav-link{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;font-weight:600;color:var(--k-ink-2);
}
.k-nav-link::after{
  content:"";position:absolute;left:0;bottom:0;height:2px;width:0;
  background:var(--k-brand);border-radius:2px;transition:width .18s ease;
}
.k-nav-link:hover{color:var(--k-brand)}
.k-nav-link:hover::after,.k-nav-link.active::after{width:16px}
.k-nav-link.active{color:var(--k-brand)}
.k-tools{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.k-search{
  display:flex;align-items:center;gap:8px;
  width:240px;height:40px;padding:0 12px;
  background:var(--k-bg);border:1px solid var(--k-line);border-radius:999px;
  transition:border-color .18s ease,box-shadow .18s ease,background .18s ease;
}
.k-search svg{width:16px;height:16px;flex:0 0 auto;color:var(--k-ink-3)}
.k-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--k-ink);
}
.k-search input::placeholder{color:var(--k-ink-3)}
.k-search:focus-within{background:#fff;border-color:var(--k-brand);box-shadow:0 0 0 2px rgba(14,111,99,.15)}
.k-kbd{
  font-size:11px;line-height:1;color:var(--k-ink-3);background:#fff;
  border:1px solid var(--k-line);border-radius:6px;padding:4px 6px;flex:0 0 auto;
}
.k-quick{font-size:14px;font-weight:600;color:var(--k-ink-2)}
.k-quick:hover{color:var(--k-brand)}
.k-burger{
  display:none;width:42px;height:42px;border:1px solid var(--k-line);background:#fff;
  border-radius:10px;align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.k-burger span{display:block;width:18px;height:2px;background:var(--k-ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.k-header.nav-open .k-burger span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.k-header.nav-open .k-burger span:nth-child(2){opacity:0}
.k-header.nav-open .k-burger span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

@media (max-width:991.98px){
  .k-burger{display:flex}
  .k-nav-wrap{
    position:absolute;top:68px;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--k-line);
    padding:16px 24px 24px;box-shadow:var(--sh2);
  }
  .k-header.nav-open .k-nav-wrap{display:flex}
  .k-search{width:100%;order:-1;margin-bottom:8px}
  .k-nav{flex-direction:column;align-items:stretch;gap:0}
  .k-nav-link{font-size:16px;line-height:52px;border-bottom:1px solid var(--k-line);padding:0}
  .k-nav-link::after{display:none}
  .k-nav-link.active{color:var(--k-brand)}
  .k-tools{flex-direction:column;align-items:stretch;gap:12px;margin-top:16px;order:2}
  .k-tools .k-btn{width:100%}
}

/* ============ buttons ============ */
.k-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;border:1.5px solid transparent;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.k-btn:active{transform:translateY(1px)}
.k-btn-primary{background:var(--k-brand);border-color:var(--k-brand);color:#fff}
.k-btn-primary:hover{background:var(--k-brand-700);border-color:var(--k-brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px -6px rgba(14,111,99,.45)}
.k-btn-outline{background:#fff;border-color:var(--k-brand);color:var(--k-brand)}
.k-btn-outline:hover{background:var(--k-brand-50);color:var(--k-brand-700);transform:translateY(-1px);box-shadow:0 6px 18px -6px rgba(14,111,99,.3)}
.k-btn-accent{background:var(--k-accent);border-color:var(--k-accent);color:#fff}
.k-btn-accent:hover{background:#d05a2e;border-color:#d05a2e;color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px -6px rgba(228,105,59,.5)}
.k-btn-light{background:#fff;border-color:#fff;color:var(--k-brand)}
.k-btn-light:hover{background:#fff;color:var(--k-brand-700);transform:translateY(-1px);box-shadow:0 8px 22px -10px rgba(0,0,0,.45)}
.k-btn-ghost-dark{background:transparent;border-color:rgba(255,255,255,.55);color:#fff}
.k-btn-ghost-dark:hover{background:rgba(255,255,255,.1);color:#fff;border-color:#fff}
.k-btn-sm{height:40px;padding:0 18px;font-size:14px}
.k-btn-lg{height:48px;padding:0 26px}
.k-btn[disabled]{opacity:.45;pointer-events:none}
.k-ghost{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--k-brand);
}
.k-ghost .k-arrow{transition:transform .18s ease;display:inline-block}
.k-ghost:hover .k-arrow{transform:translateX(3px)}
.k-arrow{color:var(--k-accent)}

/* ============ badges / pills ============ */
.k-badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12px;line-height:1;padding:5px 10px;border-radius:999px;
}
.k-badge-accent{background:var(--k-accent-50);color:var(--k-accent)}
.k-badge-soft{background:var(--k-brand-50);color:var(--k-brand)}
.k-pill{
  display:inline-flex;align-items:center;
  font-size:14px;line-height:1;padding:9px 14px;border-radius:999px;
  background:var(--k-brand-50);color:var(--k-brand);border:1px solid transparent;
  transition:border-color .18s ease,background .18s ease;
}
.k-pill:hover{border-color:var(--k-brand-100);background:#fff}

/* ============ section ============ */
.k-section{padding:96px 0}
.k-section-alt{background:var(--k-bg)}
.k-section-tint{background:var(--k-brand-50)}
@media (max-width:991.98px){.k-section{padding:72px 0}}
@media (max-width:767.98px){.k-section{padding:56px 0}}
.k-eyebrow{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--k-brand);text-transform:uppercase;margin-bottom:12px;
}
.k-sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:40px;flex-wrap:wrap}
.k-sec-head p{color:var(--k-ink-2);font-size:15px;margin:12px 0 0;max-width:44em}
.k-lead{color:var(--k-ink-2);font-size:1.0625rem;max-width:44em}

/* ============ hero ============ */
.k-hero{
  position:relative;overflow:hidden;
  background:
    radial-gradient(900px 420px at 12% -10%,rgba(14,111,99,.06),transparent 70%),
    radial-gradient(600px 300px at 92% 8%,rgba(228,105,59,.05),transparent 70%),
    var(--k-surface);
  padding:72px 0 88px;
}
.k-hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:radial-gradient(rgba(14,111,99,.06) 1px,transparent 1px);
  background-size:22px 22px;opacity:.7;
}
.k-hero-inner{position:relative;z-index:1}
.k-hero h1{margin-bottom:20px;max-width:15em}
.k-hero h1 .k-key{
  color:var(--k-brand);
  border-bottom:3px solid rgba(228,105,59,.85);
  padding-bottom:2px;
}
.k-hero-sub{font-size:1.125rem;line-height:1.7;color:var(--k-ink-2);max-width:34em;margin-bottom:28px}
.k-hero-cta{display:flex;gap:16px;flex-wrap:wrap;align-items:center}
.k-hero-note{font-size:13px;color:var(--k-ink-3);margin-top:16px}
.k-hero-media{
  background:#fff;padding:8px;border-radius:var(--r-lg);
  box-shadow:var(--sh3);border:1px solid var(--k-line);
}
.k-hero-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:14px;
  background:var(--k-brand-50);
}
.k-metrics{
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:40px;
  border-top:1px solid var(--k-line);padding-top:28px;
}
.k-metric{padding:0 20px;border-left:1px solid var(--k-line)}
.k-metric:first-child{border-left:0;padding-left:0}
.k-metric-num{font-size:28px;font-weight:700;color:var(--k-brand);line-height:1.2}
.k-metric-num small{font-size:14px;font-weight:600;color:var(--k-ink-2);margin-left:2px}
.k-metric-label{font-size:13px;color:var(--k-ink-3);line-height:1.5;margin-top:2px}
@media (max-width:767.98px){
  .k-hero{padding:48px 0 56px}
  .k-metrics{grid-template-columns:repeat(2,1fr);gap:24px 0}
  .k-metric{padding:0 16px}
  .k-metric:nth-child(odd){border-left:0;padding-left:0}
  .k-metric:nth-child(3),.k-metric:nth-child(4){border-top:1px solid var(--k-line);padding-top:20px}
}

/* ============ value list ============ */
.k-sticky{position:sticky;top:96px}
.k-vlist{border-top:1px solid var(--k-line)}
.k-vitem{
  display:flex;gap:24px;align-items:flex-start;
  min-height:96px;padding:26px 20px;border-bottom:1px solid var(--k-line);
  border-radius:12px;transition:background .18s ease;
}
.k-vitem:hover{background:var(--k-brand-50)}
.k-vnum{font-size:28px;font-weight:300;line-height:1;color:var(--k-ink-3);flex:0 0 auto;transition:color .18s ease}
.k-vitem:hover .k-vnum{color:var(--k-accent)}
.k-vitem h3{margin-bottom:8px;font-size:20px}
.k-vitem p{color:var(--k-ink-2);font-size:15px;margin:0;max-width:36em}
@media (max-width:991.98px){
  .k-sticky{position:static;margin-bottom:32px}
}

/* ============ tabs + feature cards ============ */
.k-tabs{display:flex;gap:10px;flex-wrap:nowrap;overflow-x:auto;padding-bottom:4px}
.k-tabs .nav-link{
  border:1px solid var(--k-line);background:var(--k-bg);color:var(--k-ink-2);
  border-radius:999px;padding:9px 18px;font-size:14px;font-weight:600;white-space:nowrap;
  transition:all .18s ease;
}
.k-tabs .nav-link:hover{border-color:var(--k-brand-100);color:var(--k-brand);background:#fff}
.k-tabs .nav-link.active{background:var(--k-brand);border-color:var(--k-brand);color:#fff}
.k-grid-2{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:32px}
.k-card{
  background:var(--k-surface);border:1px solid var(--k-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  display:flex;flex-direction:column;
}
.k-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:var(--k-brand-100)}
.k-card-tall{grid-row:span 2;justify-content:space-between}
.k-icon{
  width:40px;height:40px;border-radius:11px;background:rgba(14,111,99,.1);
  display:grid;place-items:center;margin-bottom:18px;color:var(--k-brand);
}
.k-icon svg{width:20px;height:20px}
.k-card h3{font-size:18px;margin-bottom:10px}
.k-card p{color:var(--k-ink-2);font-size:15px;margin-bottom:18px}
.k-card .k-ghost{margin-top:auto}
.k-card-img{margin-top:20px;border-radius:12px;overflow:hidden;background:var(--k-brand-50)}
.k-card-img img{width:100%;aspect-ratio:16/9;object-fit:cover}
@media (max-width:767.98px){
  .k-grid-2{grid-template-columns:1fr}
  .k-card-tall{grid-row:auto}
}

/* ============ steps ============ */
.k-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin-top:16px}
.k-step{position:relative;padding:0 24px 0 0}
.k-step::before{
  content:"";position:absolute;top:19px;right:0;left:64px;border-top:1px dashed var(--k-line);
}
.k-step:last-child::before{display:none}
.k-step-dot{
  width:38px;height:38px;border-radius:50%;border:1.5px solid var(--k-brand);color:var(--k-brand);
  display:grid;place-items:center;font-size:14px;font-weight:700;background:#fff;
  position:relative;z-index:1;transition:background .18s ease,color .18s ease;
}
.k-step:hover .k-step-dot{background:var(--k-brand);color:#fff}
.k-step h3{font-size:16px;margin:18px 0 8px}
.k-step p{font-size:14px;color:var(--k-ink-2);margin:0;max-width:22em}
.k-tagrow{display:flex;flex-wrap:wrap;gap:12px;margin-top:40px}
@media (max-width:991.98px){
  .k-steps{grid-template-columns:1fr 1fr;gap:32px 0}
  .k-step:nth-child(2)::before{display:none}
}
@media (max-width:767.98px){
  .k-steps{grid-template-columns:1fr;gap:0}
  .k-step{padding:0 0 28px 34px;border-left:1px solid var(--k-line);margin-left:19px}
  .k-step::before{display:none}
  .k-step-dot{position:absolute;left:-19px;top:0}
  .k-step h3{margin-top:6px}
}

/* ============ cases ============ */
.k-case-lg{
  background:var(--k-dark);color:#fff;border-radius:var(--r-lg);padding:36px;
  display:flex;flex-direction:column;gap:24px;height:100%;
  position:relative;overflow:hidden;
}
.k-case-lg::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.05) 0 1px,transparent 1px 26px);
}
.k-case-lg h3,.k-case-lg p,.k-case-lg span{position:relative;z-index:1}
.k-case-lg h3{color:#fff;font-size:22px}
.k-case-lg p{color:#B9C8C5;font-size:15px;margin:0}
.k-case-lg .k-quote{font-size:17px;line-height:1.75;color:#EAF4F1;border-left:3px solid var(--k-accent);padding-left:16px}
.k-case-metrics{display:flex;gap:36px;flex-wrap:wrap}
.k-case-metrics .n{font-size:32px;font-weight:700;color:var(--k-accent);line-height:1.1}
.k-case-metrics .l{font-size:13px;color:#B9C8C5}
.k-case-img{border-radius:14px;overflow:hidden;position:relative;z-index:1;background:#12302B}
.k-case-img img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .3s ease}
.k-case-lg:hover .k-case-img img{transform:scale(1.02)}
.k-case-sm{height:100%;display:flex;flex-direction:column;gap:14px}
.k-case-sm .n{font-size:24px;font-weight:700;color:var(--k-brand)}
.k-case-sm .l{font-size:13px;color:var(--k-ink-3)}
.k-case-sm h3{font-size:17px}
.k-case-sm p{font-size:14px;color:var(--k-ink-2);margin:0}
.k-case-sm .k-ghost{margin-top:auto}
.k-more{display:flex;justify-content:center;margin-top:40px}

/* ============ price ============ */
.k-price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.k-price{
  background:#fff;border:1px solid var(--k-line);border-radius:var(--r-card);
  padding:32px 28px;box-shadow:var(--sh1);
  display:flex;flex-direction:column;gap:16px;transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.k-price:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:var(--k-brand-100)}
.k-price h3{font-size:16px;color:var(--k-ink-2);font-weight:600}
.k-price .k-amount{font-size:36px;font-weight:700;line-height:1.1;color:var(--k-ink)}
.k-price .k-amount span{font-size:13px;font-weight:500;color:var(--k-ink-3);margin-left:4px}
.k-price .k-desc{font-size:14px;color:var(--k-ink-2);margin:0}
.k-price ul{display:flex;flex-direction:column;gap:10px}
.k-price li{display:flex;gap:8px;font-size:14px;color:var(--k-ink-2);line-height:1.7}
.k-price li svg{width:16px;height:16px;flex:0 0 auto;margin-top:6px;color:var(--k-brand)}
.k-price .k-btn{margin-top:8px}
.k-price-featured{
  background:var(--k-dark);color:#fff;border-color:var(--k-dark);
  padding:40px 28px;position:relative;box-shadow:var(--sh3);
  outline:1px solid rgba(14,111,99,.7);outline-offset:3px;
}
.k-price-featured h3,.k-price-featured .k-amount{color:#fff}
.k-price-featured .k-amount span,.k-price-featured .k-desc{color:#B9C8C5}
.k-price-featured li{color:#D7E3E0}
.k-price-featured li svg{color:var(--k-accent)}
.k-price-featured .k-tag{
  position:absolute;top:16px;right:16px;background:var(--k-accent);color:#fff;
  font-size:12px;padding:5px 10px;border-radius:999px;line-height:1;
}
@media (max-width:991.98px){
  .k-price-grid{grid-template-columns:1fr 1fr}
  .k-price-featured{padding:32px 28px}
}
@media (max-width:767.98px){.k-price-grid{grid-template-columns:1fr}}

.k-table-wrap{overflow-x:auto;margin-top:48px;border:1px solid var(--k-line);border-radius:var(--r-card);background:#fff}
table.k-cmp{width:100%;min-width:640px;border-collapse:collapse;font-size:14px}
table.k-cmp th,table.k-cmp td{padding:16px 20px;text-align:left;border-bottom:1px solid var(--k-line);white-space:nowrap}
table.k-cmp thead th{background:var(--k-brand-50);color:var(--k-brand);font-weight:600;font-size:13px}
table.k-cmp tbody tr:nth-child(even){background:#FAFBFA}
table.k-cmp tbody tr:last-child td{border-bottom:0}
table.k-cmp td:first-child{color:var(--k-ink);font-weight:600}

/* ============ news ============ */
.k-news-lead{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--k-line);
  border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1);height:100%;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.k-news-lead:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:var(--k-brand-100);color:inherit}
.k-news-thumb{background:var(--k-brand-50);overflow:hidden}
.k-news-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .3s ease}
.k-news-lead:hover .k-news-thumb img,.k-news-item:hover .k-news-thumb img{transform:scale(1.03)}
.k-news-body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1 1 auto}
.k-news-body h3{font-size:20px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.k-news-body p{
  font-size:15px;color:var(--k-ink-2);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.k-news-foot{display:flex;align-items:center;justify-content:space-between;margin-top:auto;font-size:13px;color:var(--k-ink-3)}
.k-news-list{display:flex;flex-direction:column;gap:16px;height:100%}
.k-news-item{
  display:flex;gap:16px;align-items:center;min-height:88px;padding:12px;
  background:#fff;border:1px solid var(--k-line);border-radius:14px;box-shadow:var(--sh1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;color:inherit;
}
.k-news-item:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:var(--k-brand-100);color:inherit}
.k-news-item .k-news-thumb{width:96px;height:72px;flex:0 0 auto;border-radius:10px;overflow:hidden}
.k-news-item .k-news-thumb img{width:96px;height:72px;aspect-ratio:auto}
.k-news-meta{display:flex;flex-direction:column;gap:8px;min-width:0}
.k-news-meta h3{
  font-size:16px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  transition:color .18s ease;
}
.k-news-item:hover .k-news-meta h3{color:var(--k-brand)}
.k-news-meta .t{font-size:13px;color:var(--k-ink-3)}
.k-empty{
  border:1px dashed var(--k-line);border-radius:var(--r-card);background:#fff;
  min-height:180px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px;
  padding:32px;text-align:center;color:var(--k-ink-2);font-size:15px;
}
.k-empty svg{width:32px;height:32px;color:var(--k-ink-3)}

/* ============ faq ============ */
.k-faq{display:flex;flex-direction:column;gap:12px}
.k-faq .accordion-item{
  border:1px solid var(--k-line);border-radius:14px;overflow:hidden;box-shadow:var(--sh1);background:#fff;
}
.k-faq .accordion-button{
  background:#fff;font-size:16px;font-weight:600;color:var(--k-ink);
  padding:20px 24px;box-shadow:none;display:flex;align-items:center;gap:12px;
  transition:background .18s ease,box-shadow .18s ease;
}
.k-faq .accordion-button:not(.collapsed){
  color:var(--k-brand);background:#fff;box-shadow:inset 4px 0 0 var(--k-brand);
}
.k-faq .accordion-button:focus{box-shadow:inset 4px 0 0 var(--k-brand);outline:none}
.k-faq .accordion-button::after{
  content:"+";background-image:none;width:24px;height:24px;
  display:flex;align-items:center;justify-content:center;margin-left:auto;flex:0 0 auto;
  font-size:22px;font-weight:300;line-height:1;color:var(--k-brand);
  transition:transform .18s ease,color .18s ease;
}
.k-faq .accordion-button:not(.collapsed)::after{transform:rotate(45deg);color:var(--k-accent)}
.k-faq .accordion-body{padding:0 24px 20px;font-size:15px;line-height:1.8;color:var(--k-ink-2)}

/* ============ cta ============ */
.k-cta{
  position:relative;overflow:hidden;border-radius:24px;padding:64px;
  background:linear-gradient(120deg,var(--k-dark) 0%,#12433B 100%);
  color:#fff;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;
}
.k-cta::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(120deg,rgba(255,255,255,.05) 0 1px,transparent 1px 30px);
}
.k-cta > *{position:relative;z-index:1}
.k-cta h2{color:#fff;max-width:20em}
.k-cta p{color:#B9C8C5;margin:14px 0 0;max-width:36em;font-size:15px}
.k-cta-actions{display:flex;gap:16px;flex-wrap:wrap}
.k-cta-actions .k-btn{max-width:200px}
@media (max-width:767.98px){
  .k-cta{padding:40px 24px;border-radius:20px}
  .k-cta-actions{width:100%}
  .k-cta-actions .k-btn{max-width:none;width:100%}
}

/* ============ footer ============ */
.k-footer{
  position:relative;background:var(--k-dark);color:#B9C8C5;margin-top:96px;padding:64px 0 0;
  font-size:14px;
}
.k-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--k-brand),transparent);
}
.k-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.k-footer h4{font-size:14px;font-weight:600;color:#DCEDE9;margin-bottom:18px;letter-spacing:.02em}
.k-footer ul{display:flex;flex-direction:column;gap:2px}
.k-footer a{color:#B9C8C5;font-size:14px;line-height:2.1;display:inline-block;transition:color .18s ease,transform .18s ease}
.k-footer a:hover{color:#fff;transform:translateX(2px)}
.k-footer-brand .k-logo-name{color:#fff}
.k-footer-brand .k-logo-name b{color:#7FD3C4}
.k-footer-brand .k-logo-sub{color:#8A9A96}
.k-footer-slogan{margin:16px 0 12px;color:#B9C8C5;font-size:14px;max-width:26em;line-height:1.8}
.k-footer-kw{font-size:13px;color:#8A9A96}
.k-footer-bottom{
  margin-top:48px;padding:20px 0;border-top:1px solid rgba(255,255,255,.08);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8A9A96;
}
@media (max-width:991.98px){.k-footer-grid{grid-template-columns:1fr 1fr;gap:32px}}
@media (max-width:575.98px){
  .k-footer{padding-top:48px;margin-top:56px}
  .k-footer-grid{grid-template-columns:1fr}
}
.k-anchor{position:relative;top:-88px;display:block;height:0;visibility:hidden}

/* roulang page: category1 */
:root{
  --k-brand:#0E6F63;
  --k-brand-700:#0A554B;
  --k-brand-50:#EAF4F1;
  --k-brand-100:#DCEDE9;
  --k-accent:#E4693B;
  --k-accent-50:#FCEDE6;
  --k-ink:#16211F;
  --k-ink-2:#4E625E;
  --k-ink-3:#8A9A96;
  --k-line:#E3E9E6;
  --k-bg:#F7F9F7;
  --k-surface:#FFFFFF;
  --k-dark:#0B1F1C;
  --sh1:0 1px 2px rgba(11,31,28,.05);
  --sh2:0 10px 30px -14px rgba(11,31,28,.18);
  --sh3:0 24px 60px -24px rgba(11,31,28,.26);
  --r-sm:10px;
  --r-btn:12px;
  --r-card:16px;
  --r-lg:20px;
  --bs-primary:#0E6F63;
  --bs-primary-rgb:14,111,99;
  --bs-body-color:#16211F;
  --bs-body-bg:#F7F9F7;
  --bs-link-color:#0E6F63;
  --bs-link-hover-color:#E4693B;
  --bs-border-color:#E3E9E6;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:1.0625rem;
  line-height:1.85;
  color:var(--k-ink);
  background:var(--k-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{color:var(--k-brand);text-decoration:underline;text-underline-offset:3px;transition:color .18s ease}
a:hover{color:var(--k-accent)}
h1,h2,h3,h4{margin:0 0 16px;letter-spacing:-.01em;color:var(--k-ink);font-weight:700}
h1{font-size:clamp(2rem,4.4vw,3rem);line-height:1.25}
h2{font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.3}
h3{font-size:1.25rem;line-height:1.4;font-weight:600}
p{margin:0 0 1.25em}
ul,ol{margin:0 0 1.25em;padding-left:1.2em}
li{line-height:1.8;margin-bottom:.5em}
:focus-visible{outline:2px solid var(--k-brand);outline-offset:2px;border-radius:4px}
.k-skip{
  position:absolute;left:-9999px;top:0;z-index:2000;background:var(--k-brand);color:#fff;
  padding:10px 16px;border-radius:0 0 var(--r-btn) 0;text-decoration:none
}
.k-skip:focus{left:0;color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (min-width:1400px){.container{max-width:1240px}}
@media (max-width:575.98px){.container{padding:0 16px}}

/* ---------- 按钮 ---------- */
.k-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:.9375rem;font-weight:600;line-height:1;text-decoration:none;
  padding:0 22px;height:44px;border-radius:var(--r-btn);border:1.5px solid transparent;
  cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap
}
.k-btn:active{transform:translateY(1px)}
.k-btn-primary{background:var(--k-brand);color:#fff}
.k-btn-primary:hover{background:var(--k-brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px -6px rgba(14,111,99,.45)}
.k-btn-outline{background:#fff;color:var(--k-brand);border-color:var(--k-brand)}
.k-btn-outline:hover{background:var(--k-brand-50);color:var(--k-brand-700);transform:translateY(-1px);box-shadow:0 6px 18px -6px rgba(14,111,99,.28)}
.k-btn-ghost{background:transparent;color:var(--k-brand);padding:0;height:auto;border:0}
.k-btn-ghost:hover{color:var(--k-accent)}
.k-btn-ghost .k-arrow{display:inline-block;transition:transform .18s ease}
.k-btn-ghost:hover .k-arrow{transform:translateX(3px)}
.k-btn-light{background:#fff;color:var(--k-brand)}
.k-btn-light:hover{background:#fff;color:var(--k-brand-700);transform:translateY(-1px);box-shadow:0 6px 18px -6px rgba(0,0,0,.35)}
.k-btn-line{background:transparent;color:#fff;border-color:rgba(255,255,255,.65)}
.k-btn-line:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
.k-btn-sm{height:40px;padding:0 18px;font-size:.9375rem}
.k-btn-lg{height:48px;padding:0 26px}
.k-btn:disabled{opacity:.45;transform:none;box-shadow:none;cursor:not-allowed}

/* ---------- 徽章 / pill ---------- */
.k-badge{
  display:inline-flex;align-items:center;gap:6px;border-radius:999px;
  font-size:.75rem;line-height:1;padding:6px 12px;font-weight:600
}
.k-badge-accent{background:var(--k-accent-50);color:var(--k-accent)}
.k-badge-brand{background:var(--k-brand-50);color:var(--k-brand)}
.k-pill{
  display:inline-flex;align-items:center;border-radius:999px;background:var(--k-brand-50);
  color:var(--k-brand);font-size:.8125rem;line-height:1;padding:8px 14px;font-weight:600;
  text-decoration:none;border:1px solid transparent;transition:all .18s ease
}
.k-pill:hover{background:#fff;border-color:var(--k-brand-100);color:var(--k-brand-700)}

/* ---------- 导航 ---------- */
.k-header{
  position:sticky;top:0;z-index:1030;height:68px;
  background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:blur(10px);backdrop-filter:blur(10px);
  border-bottom:1px solid var(--k-line);
  transition:box-shadow .2s ease
}
.k-header.is-scrolled{box-shadow:var(--sh1)}
.k-header-inner{height:68px;display:flex;align-items:center;gap:24px}
.k-logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.k-logo-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 auto;
  background:linear-gradient(140deg,#0E6F63 0%,#128576 60%,#0A554B 100%);
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 16px -8px rgba(14,111,99,.75)
}
.k-logo-mark svg{width:20px;height:20px}
.k-logo-text{display:flex;flex-direction:column;line-height:1.15}
.k-logo-name{font-size:17px;font-weight:700;color:var(--k-ink);letter-spacing:-.01em}
.k-logo-name b{color:var(--k-brand);font-weight:700}
.k-logo-sub{font-size:11px;color:var(--k-ink-3);letter-spacing:.02em}
.k-nav-wrap{display:flex;align-items:center;justify-content:space-between;flex:1 1 auto;gap:24px;min-width:0}
.k-nav{display:flex;align-items:center;gap:28px;list-style:none;margin:0;padding:0}
.k-nav li{margin:0}
.k-nav-link{
  position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:600;
  color:var(--k-ink-2);text-decoration:none;white-space:nowrap;transition:color .18s ease
}
.k-nav-link::after{
  content:"";position:absolute;left:50%;bottom:0;width:0;height:2px;border-radius:2px;
  background:var(--k-brand);transform:translateX(-50%);transition:width .2s ease
}
.k-nav-link:hover{color:var(--k-brand)}
.k-nav-link:hover::after{width:16px}
.k-nav-link.active{color:var(--k-brand)}
.k-nav-link.active::after{width:16px}
.k-tools{display:flex;align-items:center;gap:16px;flex:0 0 auto}
.k-search{
  display:flex;align-items:center;gap:8px;width:240px;height:40px;padding:0 12px;
  background:var(--k-bg);border:1px solid var(--k-line);border-radius:999px;transition:all .18s ease
}
.k-search:focus-within{border-color:var(--k-brand);box-shadow:0 0 0 2px rgba(14,111,99,.15);background:#fff}
.k-search svg{width:17px;height:17px;color:var(--k-ink-3);flex:0 0 auto}
.k-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:.875rem;color:var(--k-ink);font-family:inherit
}
.k-search input::placeholder{color:var(--k-ink-3)}
.k-kbd{
  font-family:inherit;font-size:11px;color:var(--k-ink-3);background:#fff;
  border:1px solid var(--k-line);border-radius:6px;padding:2px 6px;line-height:1.4;flex:0 0 auto
}
.k-quick{font-size:.875rem;font-weight:600;color:var(--k-ink-2);text-decoration:none}
.k-quick:hover{color:var(--k-brand)}
.k-burger{
  display:none;width:42px;height:42px;border:1px solid var(--k-line);background:#fff;
  border-radius:10px;padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer
}
.k-burger span{display:block;width:18px;height:2px;background:var(--k-ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease}
.k-burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.k-burger.is-open span:nth-child(2){opacity:0}
.k-burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

@media (max-width:991.98px){
  .k-burger{display:flex;margin-left:auto}
  .k-nav-wrap{
    display:none;position:absolute;left:0;right:0;top:68px;background:#fff;
    border-bottom:1px solid var(--k-line);box-shadow:var(--sh2);
    flex-direction:column;align-items:stretch;gap:0;padding:20px 24px 26px
  }
  .k-nav-wrap.is-open{display:flex}
  .k-tools{flex-direction:column;align-items:stretch;gap:14px;order:-1;margin-bottom:18px}
  .k-search{width:100%;height:44px}
  .k-quick{display:none}
  .k-tools .k-btn{width:100%;height:46px}
  .k-nav{flex-direction:column;align-items:stretch;gap:0}
  .k-nav-link{font-size:16px;line-height:52px;padding:0;border-bottom:1px solid var(--k-line)}
  .k-nav-link::after{display:none}
  .k-nav-link.active{color:var(--k-brand)}
  .k-nav li:last-child .k-nav-link{border-bottom:0}
}

/* ---------- 面包屑 ---------- */
.k-crumb{padding:32px 0 0}
.k-crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0;font-size:.8125rem;color:var(--k-ink-3)}
.k-crumb li{margin:0;display:flex;align-items:center;gap:8px}
.k-crumb li::after{content:"/";color:var(--k-line)}
.k-crumb li:last-child::after{display:none}
.k-crumb a{color:var(--k-ink-2);text-decoration:none}
.k-crumb a:hover{color:var(--k-brand)}
.k-crumb .is-current{color:var(--k-ink-3)}

/* ---------- 分类 Hero ---------- */
.k-cat-hero{
  background:linear-gradient(180deg,var(--k-brand-50) 0%,#F2F7F5 100%);
  border-bottom:1px solid var(--k-line);
  padding:44px 0 56px;margin-top:24px;position:relative;overflow:hidden
}
.k-cat-hero::after{
  content:"";position:absolute;right:-90px;top:-90px;width:340px;height:340px;border-radius:50%;
  border:1px solid rgba(14,111,99,.06);box-shadow:0 0 0 40px rgba(14,111,99,.03);
  pointer-events:none
}
.k-cat-hero-grid{display:grid;grid-template-columns:1.5fr 1fr;gap:48px;align-items:start;position:relative;z-index:1}
.k-cat-hero h1{margin-bottom:16px}
.k-cat-hero h1 .k-hl{color:var(--k-brand);box-shadow:inset 0 -3px 0 var(--k-accent)}
.k-cat-hero .k-lead{font-size:1.0625rem;color:var(--k-ink-2);max-width:34em;margin-bottom:24px}
.k-hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:14px}
.k-hero-note{font-size:.8125rem;color:var(--k-ink-3);margin:0}
.k-hero-side{
  background:#fff;border:1px solid var(--k-line);border-radius:var(--r-lg);
  padding:26px 26px 20px;box-shadow:var(--sh1)
}
.k-hero-side h2{font-size:1rem;font-weight:600;margin-bottom:16px;color:var(--k-ink)}
.k-hero-side ul{list-style:none;margin:0;padding:0}
.k-hero-side li{
  display:flex;gap:12px;align-items:flex-start;margin:0;padding:12px 0;
  border-top:1px solid var(--k-line);font-size:.9375rem;color:var(--k-ink-2);line-height:1.7
}
.k-hero-side li:first-child{border-top:0;padding-top:0}
.k-hero-side li i{color:var(--k-brand);font-size:1rem;line-height:1.6;flex:0 0 auto}

/* ---------- 锚点布局 ---------- */
.k-anchor-layout{margin-top:64px}
.k-anchor-nav{align-self:start;position:sticky;top:96px}
.k-anchor-nav-inner{
  background:#fff;border:1px solid var(--k-line);border-radius:var(--r-card);
  padding:22px 20px;box-shadow:var(--sh1)
}
.k-anchor-nav-inner h2{font-size:.8125rem;text-transform:none;color:var(--k-ink-3);font-weight:600;margin-bottom:14px;letter-spacing:.04em}
.k-anchor-nav ul{list-style:none;margin:0;padding:0}
.k-anchor-nav li{margin:0}
.k-anchor-link{
  display:block;position:relative;padding:10px 0 10px 16px;font-size:.9375rem;font-weight:600;
  color:var(--k-ink-2);text-decoration:none;border-radius:8px;transition:color .18s ease,background-color .18s ease
}
.k-anchor-link::before{
  content:"";position:absolute;left:0;top:12px;bottom:12px;width:3px;border-radius:3px;
  background:transparent;transition:background-color .18s ease
}
.k-anchor-link:hover{color:var(--k-brand);background:var(--k-brand-50)}
.k-anchor-link.active{color:var(--k-brand)}
.k-anchor-link.active::before{background:var(--k-brand)}
.k-anchor-foot{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--k-line);
  font-size:.8125rem;color:var(--k-ink-3);line-height:1.7
}

.k-group{padding:0 0 56px;margin-bottom:8px}
.k-group + .k-group{border-top:1px solid var(--k-line);padding-top:56px}
.k-group-head{margin-bottom:26px}
.k-group-head h2{margin-bottom:12px}
.k-group-head p{color:var(--k-ink-2);margin:0;max-width:38em}
.k-group-media{
  border:8px solid #fff;border-radius:var(--r-card);box-shadow:var(--sh2);overflow:hidden;background:var(--k-brand-50)
}
.k-group-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:8px}
.k-list{list-style:none;margin:0 0 20px;padding:0}
.k-list li{position:relative;padding-left:28px;margin-bottom:12px;color:var(--k-ink-2);font-size:.9375rem}
.k-list li::before{
  content:"";position:absolute;left:0;top:.62em;width:8px;height:8px;border-radius:50%;
  background:var(--k-brand);opacity:.9
}
.k-mini{
  display:inline-flex;align-items:center;gap:8px;font-size:.875rem;font-weight:600;
  color:var(--k-brand);text-decoration:none
}
.k-mini .k-arrow{transition:transform .18s ease;display:inline-block}
.k-mini:hover{color:var(--k-accent)}
.k-mini:hover .k-arrow{transform:translateX(3px)}

/* ---------- 数据条 ---------- */
.k-statbar{
  background:var(--k-dark);border-radius:var(--r-lg);padding:40px 32px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:0;margin:8px 0 72px;position:relative;overflow:hidden
}
.k-statbar::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(115deg,rgba(255,255,255,.03) 0 1px,transparent 1px 22px)
}
.k-stat{position:relative;z-index:1;padding:0 24px;border-left:1px solid rgba(255,255,255,.12)}
.k-stat:first-child{border-left:0;padding-left:0}
.k-stat-num{font-size:28px;font-weight:700;line-height:1.2;color:#fff}
.k-stat-num em{font-style:normal;font-size:14px;font-weight:600;color:var(--k-accent);margin-left:4px}
.k-stat-label{font-size:.8125rem;color:#B9C8C5;margin-top:6px}
.k-stat-src{font-size:.75rem;color:#7C8F8B;margin-top:6px}

/* ---------- FAQ ---------- */
.k-section{padding:56px 0}
.k-faq-item{
  background:#fff;border:1px solid var(--k-line);border-radius:14px;box-shadow:var(--sh1);
  margin-bottom:12px;overflow:hidden;transition:box-shadow .18s ease,border-color .18s ease
}
.k-faq-item:hover{box-shadow:var(--sh2)}
.k-faq-btn{
  width:100%;display:flex;align-items:center;gap:16px;justify-content:space-between;
  background:transparent;border:0;text-align:left;padding:20px 22px 20px 24px;
  font-size:16px;font-weight:600;color:var(--k-ink);cursor:pointer;position:relative;font-family:inherit
}
.k-faq-btn::before{
  content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;
  background:var(--k-brand);opacity:0;transition:opacity .18s ease
}
.k-faq-btn[aria-expanded="true"]::before{opacity:1}
.k-faq-icon{
  position:relative;width:20px;height:20px;flex:0 0 auto;transition:transform .22s ease
}
.k-faq-icon::before,.k-faq-icon::after{
  content:"";position:absolute;background:var(--k-ink-2);border-radius:2px;transition:background-color .22s ease
}
.k-faq-icon::before{left:0;top:9px;width:20px;height:2px}
.k-faq-icon::after{top:0;left:9px;width:2px;height:20px}
.k-faq-btn[aria-expanded="true"] .k-faq-icon{transform:rotate(45deg)}
.k-faq-btn[aria-expanded="true"] .k-faq-icon::before,
.k-faq-btn[aria-expanded="true"] .k-faq-icon::after{background:var(--k-accent)}
.k-faq-body{padding:0 22px 20px 24px;color:var(--k-ink-2);font-size:15px;line-height:1.8}
.k-faq-body p:last-child{margin-bottom:0}

/* ---------- 底部 CTA ---------- */
.k-cta-band{
  background:var(--k-dark);border-radius:24px;padding:64px 48px;position:relative;overflow:hidden;
  margin:16px 0 88px
}
.k-cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:repeating-linear-gradient(125deg,rgba(255,255,255,.04) 0 1px,transparent 1px 26px)
}
.k-cta-inner{position:relative;z-index:1;max-width:44em}
.k-cta-band h2{color:#fff;margin-bottom:12px}
.k-cta-band p{color:#B9C8C5;margin-bottom:28px}
.k-cta-actions{display:flex;flex-wrap:wrap;gap:16px}
.k-cta-actions .k-btn{min-width:180px}

/* ---------- 页脚 ---------- */
.k-footer{
  background:var(--k-dark);color:#B9C8C5;position:relative;padding-top:64px;font-size:14px
}
.k-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,var(--k-brand) 0%,rgba(14,111,99,0) 70%)
}
.k-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:48px}
.k-footer h4{font-size:14px;font-weight:600;color:#DCEDE9;margin-bottom:16px}
.k-footer ul{list-style:none;margin:0;padding:0}
.k-footer li{margin-bottom:0}
.k-footer a,.k-footer span{color:#B9C8C5;text-decoration:none;font-size:14px;line-height:2.1;transition:color .18s ease,transform .18s ease}
.k-footer a{display:inline-block}
.k-footer a:hover{color:#fff;transform:translateX(2px)}
.k-footer-slogan{margin:14px 0 10px;line-height:1.9;color:#B9C8C5}
.k-footer-kw{font-size:13px;color:#7C8F8B;margin:0;line-height:1.9}
.k-footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13px;color:#7C8F8B
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .k-cat-hero-grid{gap:36px}
}
@media (max-width:991.98px){
  .k-cat-hero{padding:36px 0 46px}
  .k-cat-hero-grid{grid-template-columns:1fr;gap:28px}
  .k-anchor-nav{position:static;margin-bottom:32px}
  .k-anchor-nav ul{display:flex;gap:10px;overflow-x:auto;padding-bottom:4px}
  .k-anchor-nav li{flex:0 0 auto}
  .k-anchor-link{white-space:nowrap;background:var(--k-brand-50);padding:8px 14px;border-radius:999px;font-size:.875rem}
  .k-anchor-link::before{display:none}
  .k-anchor-link.active{background:var(--k-brand);color:#fff}
  .k-anchor-foot{display:none}
  .k-anchor-layout{margin-top:48px}
  .k-statbar{grid-template-columns:repeat(2,1fr);row-gap:28px;padding:32px 24px}
  .k-stat:nth-child(3){border-left:0;padding-left:0}
  .k-cta-band{padding:48px 32px;margin-bottom:64px}
  .k-footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
}
@media (max-width:767.98px){
  body{font-size:1rem}
  .k-section{padding:44px 0}
  .k-cat-hero h1{font-size:clamp(1.75rem,6vw,2.25rem)}
  .k-hero-actions{flex-direction:column;align-items:stretch;gap:12px}
  .k-hero-actions .k-btn{width:100%}
  .k-group{padding-bottom:44px}
  .k-group + .k-group{padding-top:44px}
  .k-cta-band h2{font-size:1.5rem}
  .k-cta-actions{flex-direction:column;align-items:stretch}
  .k-cta-actions .k-btn{width:100%;min-width:0}
  .k-footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:575.98px){
  .k-statbar{grid-template-columns:1fr;padding:28px 20px}
  .k-stat{border-left:0;padding:0 0 0 14px;border-left:2px solid rgba(255,255,255,.14)}
  .k-stat:first-child{padding-left:14px}
  .k-footer-grid{grid-template-columns:1fr;gap:28px}
  .k-cta-band{padding:36px 22px;border-radius:20px}
  .k-group-media img{border-radius:12px}
  .k-cat-hero-side{padding:22px 20px 16px}
}

/* roulang page: article */
:root{
  --k-brand:#0E6F63;
  --k-brand-700:#0A554B;
  --k-brand-50:#EAF4F1;
  --k-brand-100:#DCEDE9;
  --k-accent:#E4693B;
  --k-accent-50:#FCEDE6;
  --k-ink:#16211F;
  --k-ink-2:#4E625E;
  --k-ink-3:#8A9A96;
  --k-line:#E3E9E6;
  --k-bg:#F7F9F7;
  --k-surface:#FFFFFF;
  --k-dark:#0B1F1C;
  --sh1:0 1px 2px rgba(11,31,28,.05);
  --sh2:0 10px 30px -14px rgba(11,31,28,.18);
  --sh3:0 24px 60px -24px rgba(11,31,28,.26);
  --r-sm:10px; --r-btn:12px; --r-card:16px; --r-lg:20px; --r-xl:24px;
  --bs-primary:#0E6F63;
  --bs-primary-rgb:14,111,99;
  --bs-link-color:#0E6F63;
  --bs-link-hover-color:#E4693B;
  --bs-body-color:#16211F;
  --bs-body-bg:#F7F9F7;
  --bs-border-color:#E3E9E6;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --bs-body-font-family:var(--bs-font-sans-serif);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--k-bg);color:var(--k-ink);
  font-family:var(--bs-font-sans-serif);
  font-size:1.0625rem;line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--k-brand);text-decoration:none;text-underline-offset:3px;transition:color .18s ease}
a:hover{color:var(--k-accent)}
h1,h2,h3,h4{margin:0;color:var(--k-ink);letter-spacing:-.01em;font-weight:700}
p{margin:0 0 1.25em}
p:last-child{margin-bottom:0}
ul,ol{margin:0 0 1.25em;padding-left:1.3em}
li{line-height:1.8;margin-bottom:.5em}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--k-brand);outline-offset:2px;border-radius:4px}
.k-skip{
  position:absolute;left:-9999px;top:0;z-index:2000;background:var(--k-brand);color:#fff;
  padding:10px 16px;border-radius:0 0 10px 0;font-size:14px;
}
.k-skip:focus{left:0;color:#fff}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- 按钮 ---------- */
.k-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
}
.k-btn-primary{background:var(--k-brand);color:#fff}
.k-btn-primary:hover{background:var(--k-brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px -6px rgba(14,111,99,.45)}
.k-btn-outline{background:#fff;color:var(--k-brand);border:1.5px solid var(--k-brand)}
.k-btn-outline:hover{background:var(--k-brand-50);color:var(--k-brand-700);transform:translateY(-1px)}
.k-btn-light{background:#fff;color:var(--k-brand);border:1px solid #fff}
.k-btn-light:hover{background:#fff;color:var(--k-brand-700);transform:translateY(-1px);box-shadow:0 6px 18px -6px rgba(0,0,0,.35)}
.k-btn-ghost-dark{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.55)}
.k-btn-ghost-dark:hover{background:rgba(255,255,255,.1);color:#fff;transform:translateY(-1px)}
.k-btn-sm{height:40px;padding:0 16px;font-size:14px}
.k-btn:active{transform:translateY(1px)}
.k-btn[disabled]{opacity:.45;pointer-events:none}
.k-arrow{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--k-brand)}
.k-arrow svg{width:14px;height:14px;transition:transform .18s ease}
.k-arrow:hover svg{transform:translateX(3px)}

/* ---------- 导航 ---------- */
.k-header{
  position:sticky;top:0;z-index:1030;height:68px;
  background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--k-line);
  transition:box-shadow .2s ease;
}
.k-header.is-scrolled{box-shadow:var(--sh1)}
.k-header-inner{height:68px;display:flex;align-items:center;gap:20px}
.k-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.k-logo-mark{
  width:34px;height:34px;border-radius:10px;background:linear-gradient(140deg,#128575,#0A554B);
  display:flex;align-items:center;justify-content:center;box-shadow:var(--sh1);
}
.k-logo-mark svg{width:20px;height:20px}
.k-logo-text{display:flex;flex-direction:column;line-height:1.15}
.k-logo-name{font-size:17px;font-weight:700;color:var(--k-ink);letter-spacing:-.01em}
.k-logo-name b{color:var(--k-brand);font-weight:700}
.k-logo-sub{font-size:11px;color:var(--k-ink-3);letter-spacing:.02em}
.k-nav-wrap{display:flex;align-items:center;justify-content:space-between;flex:1 1 auto;gap:20px}
.k-nav{display:flex;align-items:center;gap:28px;list-style:none;margin:0;padding:0}
.k-nav li{margin:0}
.k-nav-link{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;font-weight:600;color:var(--k-ink-2);
}
.k-nav-link::after{
  content:"";position:absolute;left:0;bottom:-4px;width:0;height:2px;
  background:var(--k-brand);border-radius:2px;transition:width .2s ease;
}
.k-nav-link:hover{color:var(--k-brand)}
.k-nav-link:hover::after{width:16px}
.k-nav-link.active{color:var(--k-brand)}
.k-nav-link.active::after{width:16px}
.k-tools{display:flex;align-items:center;gap:14px}
.k-search{
  display:flex;align-items:center;gap:8px;width:240px;height:40px;padding:0 12px;
  background:var(--k-bg);border:1px solid var(--k-line);border-radius:999px;
}
.k-search svg{width:16px;height:16px;color:var(--k-ink-3);flex:0 0 auto}
.k-search input{
  flex:1 1 auto;min-width:0;border:0;background:transparent;outline:none;
  font-size:14px;color:var(--k-ink);
}
.k-search input::placeholder{color:var(--k-ink-3)}
.k-kbd{
  font-size:11px;color:var(--k-ink-3);background:#fff;border:1px solid var(--k-line);
  border-radius:6px;padding:1px 5px;font-family:inherit;
}
.k-quick{font-size:14px;font-weight:600;color:var(--k-ink-2);white-space:nowrap}
.k-quick:hover{color:var(--k-brand)}
.k-burger{
  display:none;width:42px;height:42px;border:1px solid var(--k-line);border-radius:12px;
  background:#fff;margin-left:auto;padding:0;position:relative;cursor:pointer;
}
.k-burger span{
  position:absolute;left:11px;width:20px;height:2px;background:var(--k-ink);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.k-burger span:nth-child(1){top:14px}
.k-burger span:nth-child(2){top:20px}
.k-burger span:nth-child(3){top:26px}
.k-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.k-burger[aria-expanded="true"] span:nth-child(2){opacity:0}
.k-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

/* ---------- 面包屑 ---------- */
.k-crumb-wrap{padding:32px 0 0}
.k-crumb ol{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0;
  font-size:13px;color:var(--k-ink-3);
}
.k-crumb li{margin:0;display:flex;align-items:center;gap:8px}
.k-crumb a{color:var(--k-ink-2)}
.k-crumb a:hover{color:var(--k-brand)}
.k-crumb .k-crumb-sep{color:#C7D2CE}
.k-crumb .k-crumb-current{color:var(--k-ink-3);max-width:420px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}

/* ---------- 文章头 ---------- */
.k-post{padding:24px 0 0}
.k-post-head{max-width:820px;padding-bottom:24px;border-bottom:1px solid var(--k-line)}
.k-badge{
  display:inline-flex;align-items:center;height:24px;padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:600;line-height:1;
}
.k-badge-accent{background:var(--k-accent-50);color:var(--k-accent)}
.k-badge-brand{background:var(--k-brand-50);color:var(--k-brand)}
.k-post-head h1{
  margin:16px 0 0;font-size:clamp(1.75rem,3.2vw,2.5rem);line-height:1.35;font-weight:700;
}
.k-post-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;margin-top:16px;
  font-size:13px;color:var(--k-ink-3);
}
.k-post-meta .dot{color:#C7D2CE}

/* ---------- 主体栅格 ---------- */
.k-post-grid{display:grid;grid-template-columns:minmax(0,8fr) minmax(0,4fr);gap:32px;padding:40px 0 0;align-items:start}
.k-post-main{min-width:0;max-width:44em}

/* ---------- 正文排版 ---------- */
.k-article-body{font-size:1.0625rem;line-height:1.9;color:var(--k-ink)}
.k-article-body > p{font-size:17px;line-height:1.9;margin:0 0 1.25em}
.k-article-body h2{
  position:relative;font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.3;font-weight:700;
  margin:2.2em 0 .9em;padding-left:18px;
}
.k-article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:22px;border-radius:2px;background:var(--k-brand);
}
.k-article-body h3{
  position:relative;font-size:1.25rem;line-height:1.4;font-weight:600;
  margin:1.8em 0 .7em;padding-left:14px;
}
.k-article-body h3::before{
  content:"";position:absolute;left:0;top:.5em;width:8px;height:8px;border-radius:2px;background:var(--k-accent);
}
.k-article-body h4{font-size:1.05rem;margin:1.5em 0 .6em;font-weight:600}
.k-article-body ul,.k-article-body ol{padding-left:1.3em;margin:0 0 1.25em}
.k-article-body ul li::marker{color:var(--k-brand)}
.k-article-body ol li::marker{color:var(--k-accent);font-weight:600}
.k-article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--k-brand-50);
  border-left:3px solid var(--k-accent);border-radius:0 var(--r-card) var(--r-card) 0;
  font-size:17px;line-height:1.85;color:var(--k-ink-2);
}
.k-article-body blockquote p:last-child{margin-bottom:0}
.k-article-body img{border-radius:14px;box-shadow:var(--sh1);margin:1.6em 0;height:auto}
.k-article-body figure{margin:1.6em 0}
.k-article-body figcaption{font-size:13px;color:var(--k-ink-3);text-align:center;margin-top:10px}
.k-article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px;
  border:1px solid var(--k-line);border-radius:var(--r-card);overflow:hidden;
}
.k-article-body thead th{background:var(--k-brand-50);color:var(--k-brand-700);font-weight:600;text-align:left;padding:12px 14px}
.k-article-body tbody td{padding:12px 14px;border-top:1px solid var(--k-line);color:var(--k-ink-2)}
.k-article-body tbody tr:nth-child(even){background:#FAFBFA}
.k-article-body pre{
  background:var(--k-dark);color:#B8E4DA;border-radius:12px;padding:18px 20px;
  font-size:14px;line-height:1.7;overflow-x:auto;margin:1.6em 0;
}
.k-article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;font-size:.9em;
}
.k-article-body p code,.k-article-body li code{
  background:var(--k-brand-50);color:var(--k-brand-700);padding:2px 6px;border-radius:6px;
}
.k-article-body a{color:var(--k-brand);text-decoration:underline;text-decoration-thickness:1px}
.k-article-body a:hover{color:var(--k-accent)}
.k-article-body hr{border:0;border-top:1px solid var(--k-line);margin:2.4em 0}
.k-article-body strong{font-weight:700;color:var(--k-ink)}

/* ---------- 空态 ---------- */
.k-empty{
  border:1px dashed var(--k-line);border-radius:var(--r-card);background:#fff;
  padding:56px 24px;text-align:center;
}
.k-empty svg{width:40px;height:40px;color:var(--k-ink-3);margin:0 auto 16px}
.k-empty h2{font-size:20px;margin-bottom:10px}
.k-empty p{color:var(--k-ink-2);font-size:15px;margin-bottom:20px}

/* ---------- 标签 ---------- */
.k-tags{display:flex;flex-wrap:wrap;gap:10px;margin:40px 0 0;padding-top:24px;border-top:1px solid var(--k-line)}
.k-tag{
  display:inline-flex;align-items:center;height:30px;padding:0 14px;border-radius:999px;
  background:var(--k-brand-50);color:var(--k-brand);font-size:13px;font-weight:600;
  border:1px solid transparent;transition:border-color .18s ease,color .18s ease,background-color .18s ease;
}
.k-tag:hover{border-color:var(--k-brand);color:var(--k-brand-700);background:#fff}

/* ---------- 侧栏 ---------- */
.k-post-side{position:sticky;top:96px;display:flex;flex-direction:column;gap:20px}
.k-side-card{background:#fff;border:1px solid var(--k-line);border-radius:var(--r-card);box-shadow:var(--sh1);padding:20px}
.k-side-card h3{font-size:15px;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.k-side-card h3::before{content:"";width:4px;height:14px;border-radius:2px;background:var(--k-brand)}
.k-toc ul{list-style:none;margin:0;padding:0}
.k-toc li{margin:0}
.k-toc a{
  display:block;padding:8px 0 8px 12px;font-size:14px;color:var(--k-ink-2);
  border-left:3px solid transparent;line-height:1.55;
}
.k-toc a:hover{color:var(--k-brand)}
.k-toc a.is-active{color:var(--k-brand);border-left-color:var(--k-brand);font-weight:600}
.k-side-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px}
.k-side-list li{margin:0}
.k-side-item{display:block}
.k-side-thumb{
  width:100%;aspect-ratio:16/9;border-radius:12px;overflow:hidden;background:var(--k-brand-50);margin-bottom:10px;
}
.k-side-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.k-side-item:hover .k-side-thumb img{transform:scale(1.03)}
.k-side-item h4{
  font-size:15px;font-weight:600;line-height:1.5;color:var(--k-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.k-side-item:hover h4{color:var(--k-brand)}
.k-side-time{display:block;font-size:13px;color:var(--k-ink-3);margin-top:6px}

/* ---------- 文末导航与推荐 ---------- */
.k-post-foot{margin-top:48px}
.k-pager{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:32px}
.k-pager-card{
  display:block;background:#fff;border:1px solid var(--k-line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.k-pager-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:var(--k-brand-100)}
.k-pager-label{font-size:12px;font-weight:600;color:var(--k-accent);letter-spacing:.04em;display:block;margin-bottom:8px}
.k-pager-card h4{
  font-size:16px;font-weight:600;line-height:1.5;color:var(--k-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.k-pager-card:hover h4{color:var(--k-brand)}
.k-pager-next{text-align:right}
.k-back-cat{display:flex;justify-content:flex-start;margin-bottom:48px}
.k-related{padding:0 0 8px}
.k-related-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:24px}
.k-related-head h2{font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.3}
.k-related-head p{font-size:15px;color:var(--k-ink-2);margin:8px 0 0}
.k-card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.k-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--k-line);
  border-radius:var(--r-card);box-shadow:var(--sh1);overflow:hidden;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.k-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:var(--k-brand-100)}
.k-card-media{aspect-ratio:16/9;background:var(--k-brand-50);overflow:hidden}
.k-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .25s ease}
.k-card:hover .k-card-media img{transform:scale(1.03)}
.k-card-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto}
.k-card-body h3{
  font-size:17px;font-weight:600;line-height:1.5;margin-top:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.k-card:hover .k-card-body h3{color:var(--k-brand)}
.k-card-body p{
  font-size:14px;line-height:1.7;color:var(--k-ink-2);margin:10px 0 16px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.k-card-foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--k-ink-3)}
.k-card-foot svg{width:14px;height:14px;color:var(--k-brand);transition:transform .18s ease}
.k-card:hover .k-card-foot svg{transform:translateX(3px)}

/* ---------- 底部 CTA ---------- */
.k-cta{padding:72px 0 96px}
.k-cta-box{
  position:relative;overflow:hidden;background:var(--k-dark);border-radius:var(--r-xl);
  padding:64px;color:#fff;
}
.k-cta-box::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.05) 0 1px,transparent 1px 42px);
  opacity:.7;pointer-events:none;
}
.k-cta-inner{position:relative;max-width:640px}
.k-cta-box h2{
  color:#fff;font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.3;
}
.k-cta-box p{color:#B9C8C5;font-size:16px;margin:16px 0 28px;max-width:520px}
.k-cta-actions{display:flex;flex-wrap:wrap;gap:16px}
.k-cta-actions .k-btn{width:auto;max-width:200px}

/* ---------- 页脚 ---------- */
.k-footer{
  background:var(--k-dark);color:#B9C8C5;position:relative;
  border-top:1px solid transparent;
}
.k-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--k-brand),rgba(14,111,99,0));
}
.k-footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:32px;padding:64px 0 40px;
}
.k-footer h4{font-size:14px;font-weight:600;color:#9FCFC5;margin-bottom:16px}
.k-footer ul{list-style:none;margin:0;padding:0}
.k-footer li{margin:0}
.k-footer a{color:#B9C8C5;font-size:14px;line-height:2.1;display:inline-block;transition:color .18s ease,transform .18s ease}
.k-footer a:hover{color:#fff;transform:translateX(2px)}
.k-footer-slogan{font-size:14px;line-height:1.9;color:#B9C8C5;margin:14px 0 0;max-width:320px}
.k-footer-kw{font-size:13px;color:#7E918D;margin:12px 0 0}
.k-footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:20px 0 32px;border-top:1px solid rgba(255,255,255,.08);
  font-size:13px;color:#7E918D;
}

/* ---------- 响应式 ---------- */
@media (max-width:1399.98px){
  .container{max-width:1140px}
}
@media (max-width:1199.98px){
  .k-nav{gap:20px}
  .k-search{width:190px}
}
@media (max-width:991.98px){
  .k-burger{display:block}
  .k-nav-wrap{
    display:none;position:absolute;left:0;right:0;top:68px;
    flex-direction:column;align-items:stretch;gap:16px;
    background:#fff;border-bottom:1px solid var(--k-line);box-shadow:var(--sh2);
    padding:20px 24px 28px;
  }
  .k-nav-wrap.is-open{display:flex}
  .k-nav{flex-direction:column;align-items:stretch;gap:0;width:100%}
  .k-nav li{border-bottom:1px solid var(--k-line)}
  .k-nav li:last-child{border-bottom:0}
  .k-nav-link{line-height:52px;font-size:16px;padding:0;display:block}
  .k-nav-link::after{display:none}
  .k-tools{flex-direction:column;align-items:stretch;gap:14px}
  .k-search{width:100%;height:44px}
  .k-quick{line-height:44px}
  .k-tools .k-btn{width:100%}
  .k-post-grid{grid-template-columns:minmax(0,1fr);gap:32px;padding-top:32px}
  .k-post-side{position:static;order:2}
  .k-card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .k-footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:56px 0 32px}
}
@media (max-width:767.98px){
  .container{padding:0 16px}
  .k-crumb-wrap{padding-top:24px}
  .k-post-grid{padding-top:24px}
  .k-crumb .k-crumb-current{max-width:200px}
  .k-post-head{padding-bottom:20px}
  .k-article-body h2{margin-top:1.9em;padding-left:14px}
  .k-article-body h2::before{height:18px}
  .k-pager{grid-template-columns:1fr}
  .k-pager-next{text-align:left}
  .k-card-grid{grid-template-columns:1fr}
  .k-cta{padding:56px 0 72px}
  .k-cta-box{padding:40px 24px;border-radius:20px}
  .k-cta-actions{flex-direction:column;gap:12px}
  .k-cta-actions .k-btn{max-width:100%;width:100%}
  .k-footer-grid{grid-template-columns:1fr;padding:48px 0 28px}
  .k-footer-bottom{flex-direction:column}
}
@media (max-width:575.98px){
  .k-post-head h1{font-size:1.75rem}
  .k-logo-name{font-size:16px}
  .k-side-card{padding:16px}
  .k-card-body{padding:16px 18px 18px}
  .k-article-body img{border-radius:12px}
  .k-empty{padding:40px 18px}
}

/* roulang page: category2 */
:root{
  --k-brand:#0E6F63;
  --k-brand-700:#0A554B;
  --k-brand-50:#EAF4F1;
  --k-brand-100:#DCEDE9;
  --k-accent:#E4693B;
  --k-accent-50:#FCEDE6;
  --k-ink:#16211F;
  --k-ink-2:#4E625E;
  --k-ink-3:#8A9A96;
  --k-line:#E3E9E6;
  --k-bg:#F7F9F7;
  --k-surface:#FFFFFF;
  --k-dark:#0B1F1C;
  --sh1:0 1px 2px rgba(11,31,28,.05);
  --sh2:0 10px 30px -14px rgba(11,31,28,.18);
  --sh3:0 24px 60px -24px rgba(11,31,28,.26);
  --r-sm:10px;
  --r-btn:12px;
  --r-card:16px;
  --r-lg:20px;
  --bs-primary:#0E6F63;
  --bs-primary-rgb:14,111,99;
  --bs-link-color:#0E6F63;
  --bs-link-hover-color:#E4693B;
  --bs-body-color:#16211F;
  --bs-body-bg:#F7F9F7;
  --bs-border-color:#E3E9E6;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  font-size:1.0625rem;
  line-height:1.85;
  color:var(--k-ink);
  background:var(--k-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--k-brand);text-decoration:none;text-underline-offset:3px}
a:hover{color:var(--k-accent)}
h1,h2,h3,h4{margin:0;letter-spacing:-.01em;color:var(--k-ink)}
h1{font-size:clamp(2rem,4.4vw,3rem);line-height:1.25;font-weight:700}
h2{font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.3;font-weight:700}
h3{font-size:1.25rem;line-height:1.4;font-weight:600}
p{margin:0 0 1.25em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{
  outline:2px solid var(--k-brand);outline-offset:2px;border-radius:8px;
}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media (min-width:1400px){.container{max-width:1240px}}
@media (max-width:575.98px){.container{padding-left:16px;padding-right:16px}}
.k-skip{
  position:absolute;left:-9999px;top:0;z-index:2000;background:var(--k-brand);color:#fff;
  padding:10px 18px;border-radius:0 0 10px 0;font-size:14px
}
.k-skip:focus{left:0;color:#fff}

/* ============ 导航 ============ */
.k-header{
  position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.92);
  backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid var(--k-line);transition:box-shadow .2s ease
}
.k-header.is-scrolled{box-shadow:var(--sh1)}
.k-header-inner{display:flex;align-items:center;justify-content:space-between;height:68px;gap:20px}
.k-logo{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto}
.k-logo-mark{
  width:36px;height:36px;border-radius:10px;flex:0 0 36px;display:grid;place-items:center;
  background:linear-gradient(150deg,#128476,var(--k-brand-700));
  box-shadow:inset 0 1px 0 rgba(255,255,255,.35),var(--sh1)
}
.k-logo-mark svg{width:20px;height:20px}
.k-logo-text{display:flex;flex-direction:column;line-height:1.15}
.k-logo-name{font-size:17px;font-weight:700;color:var(--k-ink);letter-spacing:-.01em}
.k-logo-name b{color:var(--k-brand);font-weight:700}
.k-logo-sub{font-size:11px;color:var(--k-ink-3);letter-spacing:.02em}
.k-nav-wrap{display:flex;align-items:center;gap:24px;flex:1 1 auto;justify-content:flex-end}
.k-nav{display:flex;align-items:center;gap:28px}
.k-nav-link{
  position:relative;display:inline-block;padding:22px 0;font-size:15px;font-weight:600;
  color:var(--k-ink-2);text-decoration:none;white-space:nowrap
}
.k-nav-link::after{
  content:"";position:absolute;left:50%;bottom:16px;width:0;height:2px;
  background:var(--k-brand);border-radius:2px;transform:translateX(-50%);transition:width .2s ease
}
.k-nav-link:hover{color:var(--k-brand)}
.k-nav-link:hover::after{width:16px}
.k-nav-link.active{color:var(--k-brand)}
.k-nav-link.active::after{width:16px}
.k-tools{display:flex;align-items:center;gap:14px;flex:0 0 auto}
.k-search{
  display:flex;align-items:center;gap:8px;width:240px;height:40px;padding:0 12px;
  border-radius:999px;background:var(--k-bg);border:1px solid var(--k-line);transition:.18s ease
}
.k-search:focus-within{border-color:var(--k-brand);box-shadow:0 0 0 2px rgba(14,111,99,.16)}
.k-search svg{width:16px;height:16px;flex:0 0 16px;color:var(--k-ink-3)}
.k-search input{flex:1 1 auto;min-width:0;border:0;background:transparent;font-size:14px;color:var(--k-ink);outline:none}
.k-search input::placeholder{color:var(--k-ink-3)}
.k-search input:focus-visible{outline:none}
.k-kbd{font-size:11px;color:var(--k-ink-3);background:#fff;border:1px solid var(--k-line);border-radius:6px;padding:2px 6px;font-family:inherit}
.k-quick{font-size:14px;font-weight:600;color:var(--k-ink-2);white-space:nowrap}
.k-quick:hover{color:var(--k-brand)}
.k-burger{
  display:none;width:42px;height:42px;border:1px solid var(--k-line);background:#fff;
  border-radius:10px;padding:0;flex-direction:column;justify-content:center;align-items:center;gap:4px;cursor:pointer
}
.k-burger span{display:block;width:18px;height:2px;background:var(--k-ink);border-radius:2px;transition:.2s ease}

/* ============ 按钮 ============ */
.k-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;
  border-radius:var(--r-btn);font-size:15px;font-weight:600;text-decoration:none;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease
}
.k-btn:active{transform:translateY(1px)}
.k-btn-primary{background:var(--k-brand);color:#fff}
.k-btn-primary:hover{background:var(--k-brand-700);color:#fff;transform:translateY(-1px);box-shadow:0 6px 18px -6px rgba(14,111,99,.45)}
.k-btn-outline{background:#fff;color:var(--k-brand);border-color:var(--k-brand)}
.k-btn-outline:hover{background:var(--k-brand-50);color:var(--k-brand-700);transform:translateY(-1px);box-shadow:0 6px 18px -6px rgba(14,111,99,.35)}
.k-btn-light{background:#fff;color:var(--k-brand)}
.k-btn-light:hover{color:var(--k-brand-700);transform:translateY(-1px);box-shadow:0 6px 20px -8px rgba(0,0,0,.4)}
.k-btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.k-btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;transform:translateY(-1px)}
.k-btn-sm{height:40px;padding:0 18px;font-size:14px}
.k-btn[disabled]{opacity:.45;transform:none;box-shadow:none;pointer-events:none}
.k-link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--k-brand);margin-top:auto
}
.k-link-more:hover{color:var(--k-accent)}
.k-link-more svg{width:14px;height:14px;transition:transform .18s ease}
.k-link-more:hover svg{transform:translateX(3px)}

/* ============ 徽章 / pill ============ */
.k-badge{
  display:inline-flex;align-items:center;gap:6px;font-size:12px;font-weight:600;
  padding:4px 10px;border-radius:999px;line-height:1.6
}
.k-badge-accent{background:var(--k-accent-50);color:#B8481F}
.k-badge-brand{background:var(--k-brand-50);color:var(--k-brand-700)}
.k-badge-light{background:rgba(255,255,255,.16);color:#fff}

/* ============ 面包屑 ============ */
.k-crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:20px}
.k-crumb a{color:rgba(255,255,255,.86);font-weight:500}
.k-crumb a:hover{color:#fff;text-decoration:underline}
.k-crumb-cur{color:#fff;font-weight:600}

/* ============ Hero 横幅 ============ */
.k-hero-banner{
  position:relative;overflow:hidden;display:flex;align-items:center;
  min-height:360px;max-height:380px;color:#fff
}
.k-hero-banner > img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.k-hero-banner::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(11,31,28,.88) 0%,rgba(11,31,28,.72) 52%,rgba(11,31,28,.6) 100%)
}
.k-hero-inner{position:relative;z-index:2;padding:56px 0}
.k-hero-inner h1{color:#fff;max-width:20em}
.k-hero-lede{font-size:1.0625rem;line-height:1.8;color:rgba(255,255,255,.84);max-width:38em;margin:16px 0 26px}
.k-hero-actions{display:flex;flex-wrap:wrap;gap:16px}
.k-hero-actions .k-btn-primary{background:#fff;color:var(--k-brand)}
.k-hero-actions .k-btn-primary:hover{background:#fff;color:var(--k-brand-700)}

/* ============ 通用板块 ============ */
.k-section{padding:96px 0}
.k-section-tight{padding:64px 0}
.k-bg-soft{background:var(--k-brand-50)}
.k-bg-white{background:#fff}
.k-sec-head{max-width:44em;margin-bottom:40px}
.k-sec-head.center{margin-left:auto;margin-right:auto;text-align:center}
.k-sec-head h2{margin-bottom:16px}
.k-sec-head p{color:var(--k-ink-2);font-size:1.0625rem}
.k-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;
  color:var(--k-brand);background:var(--k-brand-50);border-radius:999px;padding:6px 14px;margin-bottom:16px
}
.k-eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--k-accent)}

/* ============ 指标条 ============ */
.k-metrics-band{background:#fff;border-bottom:1px solid var(--k-line)}
.k-metrics{display:grid;grid-template-columns:repeat(4,1fr)}
.k-metric{padding:32px 28px;border-left:1px solid var(--k-line)}
.k-metric:first-child{border-left:0;padding-left:0}
.k-metric-num{font-size:1.75rem;font-weight:700;color:var(--k-brand);line-height:1.2}
.k-metric-num span{font-size:1rem;font-weight:600;margin-left:2px}
.k-metric-label{font-size:13px;color:var(--k-ink-3);line-height:1.7;margin-top:6px}
.k-metric-note{font-size:12px;color:var(--k-ink-3);margin-top:8px;padding-top:8px;border-top:1px dashed var(--k-line)}

/* ============ 卡片矩阵 ============ */
.k-grid{display:grid;gap:24px}
.k-grid-3{grid-template-columns:repeat(3,1fr)}
.k-card{
  display:flex;flex-direction:column;height:100%;padding:28px;background:var(--k-surface);
  border:1px solid var(--k-line);border-radius:var(--r-card);box-shadow:var(--sh1);
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease
}
.k-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:var(--k-brand-100)}
.k-card-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(14,111,99,.1);color:var(--k-brand);margin-bottom:18px;flex:0 0 44px
}
.k-card-icon svg{width:22px;height:22px}
.k-card h3{font-size:1.125rem;margin-bottom:10px}
.k-card p{font-size:.9375rem;line-height:1.75;color:var(--k-ink-2);margin-bottom:18px}

/* ============ 对比表 ============ */
.k-table-wrap{
  background:#fff;border:1px solid var(--k-line);border-radius:var(--r-card);
  box-shadow:var(--sh1);overflow-x:auto
}
table.k-compare{width:100%;min-width:720px;border-collapse:collapse;font-size:.9375rem}
.k-compare thead th{
  background:var(--k-brand-50);color:var(--k-brand-700);font-weight:600;font-size:.875rem;
  text-align:left;padding:16px 22px;border-bottom:1px solid var(--k-line);white-space:nowrap
}
.k-compare td{padding:16px 22px;border-bottom:1px solid var(--k-line);color:var(--k-ink-2);line-height:1.7}
.k-compare tbody tr:nth-child(even){background:#FAFBFA}
.k-compare tbody tr:last-child td{border-bottom:0}
.k-compare td:first-child{color:var(--k-ink);font-weight:600}
.k-compare td:last-child{color:var(--k-brand-700);font-weight:600}
.k-table-hint{font-size:13px;color:var(--k-ink-3);margin-top:12px}

/* ============ 双列要点 ============ */
.k-split{display:grid;grid-template-columns:5fr 7fr;gap:56px;align-items:start}
.k-split h2{margin-bottom:16px}
.k-split-note{font-size:1rem;line-height:1.85;color:var(--k-ink-2)}
.k-check-list{display:grid;grid-template-columns:1fr 1fr;gap:16px 28px}
.k-check{display:flex;gap:12px;font-size:.9375rem;line-height:1.7;color:var(--k-ink-2)}
.k-check svg{flex:0 0 20px;width:20px;height:20px;margin-top:4px;color:var(--k-brand)}

/* ============ FAQ ============ */
.k-faq-list{display:flex;flex-direction:column;gap:12px}
.k-faq-item{
  position:relative;background:#fff;border:1px solid var(--k-line);border-radius:14px;
  box-shadow:var(--sh1);overflow:hidden
}
.k-faq-item::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:4px;
  border-radius:0 4px 4px 0;background:var(--k-brand);opacity:0;transition:opacity .2s ease
}
.k-faq-item[open]::before{opacity:1}
.k-faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;padding:22px 24px;font-size:1rem;font-weight:600;color:var(--k-ink)
}
.k-faq-item summary::-webkit-details-marker{display:none}
.k-faq-icon{position:relative;width:22px;height:22px;flex:0 0 22px;border-radius:50%;background:var(--k-brand-50);transition:transform .24s ease,background .24s ease}
.k-faq-icon::before,.k-faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--k-brand);border-radius:2px;
  transform:translate(-50%,-50%)
}
.k-faq-icon::before{width:11px;height:2px}
.k-faq-icon::after{width:2px;height:11px}
.k-faq-item[open] .k-faq-icon{transform:rotate(45deg);background:var(--k-accent-50)}
.k-faq-item[open] .k-faq-icon::before,
.k-faq-item[open] .k-faq-icon::after{background:var(--k-accent)}
.k-faq-a{padding:0 24px 22px;font-size:.9375rem;line-height:1.85;color:var(--k-ink-2)}
.k-faq-a p{margin-bottom:.9em}

/* ============ CTA ============ */
.k-cta-band{padding:0 0 96px}
.k-cta{
  position:relative;overflow:hidden;border-radius:24px;padding:64px;color:#fff;
  background:radial-gradient(120% 140% at 12% 0%,#12786B 0%,var(--k-dark) 62%);
}
.k-cta::before{
  content:"";position:absolute;inset:0;opacity:.06;
  background-image:repeating-linear-gradient(115deg,rgba(255,255,255,.6) 0 1px,transparent 1px 16px);
}
.k-cta-inner{position:relative;z-index:2;max-width:44em}
.k-cta h2{color:#fff;margin-bottom:16px}
.k-cta p{color:rgba(255,255,255,.82);margin-bottom:28px}
.k-cta-actions{display:flex;flex-wrap:wrap;gap:16px}
.k-cta-actions .k-btn{max-width:200px}

/* ============ 页脚 ============ */
.k-footer{position:relative;background:var(--k-dark);color:#B9C8C5;margin-top:0}
.k-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--k-brand),rgba(14,111,99,0))
}
.k-footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:48px;
  padding:72px 0 56px
}
.k-footer .k-logo-name{color:#fff}
.k-footer .k-logo-name b{color:#7FD3C4}
.k-footer-slogan{font-size:14px;line-height:1.85;margin:16px 0 12px;max-width:30em}
.k-footer-kw{font-size:13px;color:#8FA5A1;line-height:1.8;margin:0}
.k-footer h4{font-size:14px;font-weight:600;color:#8FD4C7;margin-bottom:18px}
.k-footer-grid ul li a,
.k-footer-grid ul li span{font-size:14px;color:#B9C8C5;line-height:2.1}
.k-footer-grid ul li a{display:inline-block;transition:transform .18s ease,color .18s ease}
.k-footer-grid ul li a:hover{color:#fff;transform:translateX(2px)}
.k-footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:20px 0;border-top:1px solid rgba(255,255,255,.08);font-size:13px;color:#8FA5A1
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .k-search{width:200px}
  .k-nav{gap:22px}
}
@media (max-width:991.98px){
  .k-burger{display:flex}
  .k-nav-wrap{
    display:none;position:absolute;left:0;right:0;top:68px;background:#fff;
    border-bottom:1px solid var(--k-line);box-shadow:var(--sh2);
    padding:20px 24px 28px;flex-direction:column;align-items:stretch;gap:18px
  }
  .k-nav-wrap.is-open{display:flex}
  .k-nav{flex-direction:column;align-items:stretch;gap:0}
  .k-nav-link{padding:14px 0;font-size:16px;line-height:24px;min-height:52px;display:flex;align-items:center}
  .k-nav-link::after{bottom:8px;left:0;transform:none}
  .k-nav-link:hover::after,.k-nav-link.active::after{width:16px}
  .k-tools{flex-direction:column;align-items:stretch;gap:14px}
  .k-search{width:100%;order:-1}
  .k-quick{text-align:center;padding:6px 0}
  .k-tools .k-btn{width:100%}
  .k-section{padding:72px 0}
  .k-split{grid-template-columns:1fr;gap:32px}
  .k-grid-3{grid-template-columns:repeat(2,1fr)}
  .k-hero-banner{max-height:none}
  .k-hero-inner{padding:48px 0}
  .k-metrics{grid-template-columns:1fr 1fr}
  .k-metric{padding:28px 24px}
  .k-metric:nth-child(odd){border-left:0;padding-left:0}
  .k-footer-grid{grid-template-columns:1fr 1fr;gap:40px;padding:56px 0 40px}
  .k-cta{padding:48px 36px}
  .k-cta-band{padding-bottom:72px}
}
@media (max-width:767.98px){
  .k-section{padding:56px 0}
  .k-section-tight{padding:48px 0}
  .k-check-list{grid-template-columns:1fr}
  .k-cta-actions{flex-direction:column;gap:12px}
  .k-cta-actions .k-btn{width:100%;max-width:none}
  .k-hero-actions{flex-direction:column;gap:12px}
  .k-hero-actions .k-btn{width:100%}
  .k-table-wrap{border-radius:12px}
  .k-table-hint{padding:0 4px}
}
@media (max-width:575.98px){
  .k-grid-3{grid-template-columns:1fr}
  .k-card{padding:20px}
  .k-metrics{grid-template-columns:1fr}
  .k-metric{border-left:0;padding:22px 0;border-top:1px solid var(--k-line)}
  .k-metric:first-child{border-top:0;padding-top:0}
  .k-footer-grid{grid-template-columns:1fr;gap:32px}
  .k-cta{padding:40px 24px;border-radius:20px}
  .k-hero-inner h1{font-size:1.75rem}
}

/* roulang page: category3 */
:root{
  --k-brand:#0E6F63;
  --k-brand-700:#0A554B;
  --k-brand-50:#EAF4F1;
  --k-brand-100:#DCEDE9;
  --k-accent:#E4693B;
  --k-accent-50:#FCEDE6;
  --k-ink:#16211F;
  --k-ink-2:#4E625E;
  --k-ink-3:#8A9A96;
  --k-line:#E3E9E6;
  --k-bg:#F7F9F7;
  --k-surface:#FFFFFF;
  --k-dark:#0B1F1C;
  --r-sm:10px;
  --r-btn:12px;
  --r-card:16px;
  --r-lg:20px;
  --r-pill:999px;
  --sh1:0 1px 2px rgba(11,31,28,.05);
  --sh2:0 10px 30px -14px rgba(11,31,28,.18);
  --sh3:0 24px 60px -24px rgba(11,31,28,.26);
  --bs-primary:#0E6F63;
  --bs-primary-rgb:14,111,99;
  --bs-link-color:#0E6F63;
  --bs-link-hover-color:#E4693B;
  --bs-body-color:#16211F;
  --bs-border-color:#E3E9E6;
  --bs-border-radius:12px;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--bs-font-sans-serif);
  font-size:1.0625rem;
  line-height:1.85;
  color:var(--k-ink);
  background:var(--k-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
h1,h2,h3,h4{margin:0;letter-spacing:-0.01em}
p{margin:0 0 1.25em;text-indent:0}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0}
a{color:var(--k-brand);text-decoration:underline;text-underline-offset:3px;transition:color .18s ease}
a:hover{color:var(--k-accent)}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--k-brand);outline-offset:2px}
.container{max-width:1200px;padding-left:24px;padding-right:24px;margin-left:auto;margin-right:auto}
@media(min-width:1400px){.container{max-width:1240px}}
@media(max-width:575.98px){.container{padding-left:16px;padding-right:16px}}
.k-skip{position:absolute;left:-9999px;top:0;background:var(--k-brand);color:#fff;padding:10px 16px;border-radius:0 0 12px 0;z-index:2000}
.k-skip:focus{left:0;color:#fff}
/* ---------- header ---------- */
.k-header{position:sticky;top:0;z-index:1030;background:rgba(255,255,255,.92);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid var(--k-line);transition:box-shadow .2s ease}
.k-header.is-scrolled{box-shadow:var(--sh1)}
.k-header-inner{display:flex;align-items:center;gap:26px;height:68px}
.k-logo{display:inline-flex;align-items:center;gap:10px;text-decoration:none;flex:none}
.k-logo:hover{text-decoration:none}
.k-logo-mark{width:36px;height:36px;border-radius:10px;background:linear-gradient(145deg,#128476,#0A554B);display:inline-flex;align-items:center;justify-content:center;box-shadow:0 4px 12px -6px rgba(14,111,99,.7);flex:none}
.k-logo-mark svg{width:20px;height:20px}
.k-logo-text{display:flex;flex-direction:column;line-height:1.2}
.k-logo-name{font-size:17px;font-weight:700;color:var(--k-ink);letter-spacing:-0.01em}
.k-logo-name b{color:var(--k-brand);font-weight:700}
.k-logo-sub{font-size:11px;color:var(--k-ink-3);letter-spacing:.04em}
.k-burger{display:none;flex-direction:column;justify-content:center;gap:5px;width:42px;height:42px;border:1px solid var(--k-line);border-radius:10px;background:#fff;margin-left:auto;padding:0 11px}
.k-burger span{display:block;height:2px;border-radius:2px;background:var(--k-ink);transition:transform .2s ease,opacity .2s ease}
.k-nav-wrap{display:flex;align-items:center;gap:24px;flex:1;min-width:0}
.k-nav{display:flex;align-items:center;gap:28px;list-style:none}
.k-nav-link{position:relative;display:inline-block;padding:6px 0;font-size:15px;font-weight:600;color:var(--k-ink-2);text-decoration:none;white-space:nowrap}
.k-nav-link::after{content:"";position:absolute;left:50%;bottom:-2px;width:16px;height:2px;background:var(--k-brand);border-radius:2px;transform:translateX(-50%) scaleX(0);transform-origin:center;transition:transform .2s ease}
.k-nav-link:hover{color:var(--k-brand);text-decoration:none}
.k-nav-link:hover::after{transform:translateX(-50%) scaleX(1)}
.k-nav-link.active{color:var(--k-brand)}
.k-nav-link.active::after{transform:translateX(-50%) scaleX(1)}
.k-tools{display:flex;align-items:center;gap:14px;margin-left:auto;flex:none}
.k-search{position:relative;display:flex;align-items:center;gap:8px;width:240px;height:40px;padding:0 12px;border-radius:var(--r-pill);background:var(--k-bg);border:1px solid var(--k-line);transition:border-color .18s ease,box-shadow .18s ease}
.k-search:focus-within{border-color:var(--k-brand);box-shadow:0 0 0 2px var(--k-brand-100)}
.k-search svg{width:16px;height:16px;color:var(--k-ink-3);flex:none}
.k-search input{flex:1;min-width:0;border:0;background:transparent;font-size:14px;color:var(--k-ink);outline:none}
.k-search input::placeholder{color:var(--k-ink-3)}
.k-kbd{font-size:11px;color:var(--k-ink-3);background:#fff;border:1px solid var(--k-line);border-radius:6px;padding:1px 5px;line-height:1.5}
.k-quick{font-size:14px;font-weight:600;color:var(--k-ink-2);text-decoration:none;white-space:nowrap}
.k-quick:hover{color:var(--k-brand);text-decoration:none}
.k-btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;text-decoration:none;border:1.5px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;white-space:nowrap}
.k-btn:hover{text-decoration:none;transform:translateY(-1px)}
.k-btn:active{transform:translateY(1px)}
.k-btn-primary{background:var(--k-brand);color:#fff}
.k-btn-primary:hover{background:var(--k-brand-700);color:#fff;box-shadow:0 6px 18px -6px rgba(14,111,99,.45)}
.k-btn-outline{background:#fff;color:var(--k-brand);border-color:var(--k-brand)}
.k-btn-outline:hover{background:var(--k-brand-50);color:var(--k-brand-700);box-shadow:0 6px 18px -6px rgba(14,111,99,.35)}
.k-btn-ghost{background:transparent;color:var(--k-brand);padding:0 6px;height:auto}
.k-btn-ghost svg{width:16px;height:16px;transition:transform .18s ease}
.k-btn-ghost:hover{color:var(--k-accent);text-decoration:none}
.k-btn-ghost:hover svg{transform:translateX(3px)}
.k-btn-sm{height:40px;padding:0 18px;font-size:14px}
.k-btn-light{background:#fff;color:var(--k-brand)}
.k-btn-light:hover{background:#fff;color:var(--k-brand-700);box-shadow:0 6px 18px -6px rgba(0,0,0,.35)}
.k-btn-ghost-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55)}
.k-btn-ghost-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff}
/* ---------- breadcrumb ---------- */
.k-crumb{padding-top:28px}
.k-crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;font-size:13px;color:var(--k-ink-3)}
.k-crumb li{display:inline-flex;align-items:center;gap:8px}
.k-crumb li+li::before{content:"/";color:var(--k-line)}
.k-crumb a{color:var(--k-ink-2);text-decoration:none}
.k-crumb a:hover{color:var(--k-brand)}
.k-crumb [aria-current="page"]{color:var(--k-ink-3)}
/* ---------- hero ---------- */
.k-hero3{padding:48px 0 72px;position:relative;overflow:hidden}
.k-hero3::before{content:"";position:absolute;inset:0;background-image:url(/assets/images/backpic/back-2.png);background-size:cover;background-position:center;opacity:.05;pointer-events:none}
.k-hero3-inner{position:relative;display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);gap:48px;align-items:center}
.k-badge{display:inline-block;font-size:12px;padding:4px 10px;border-radius:var(--r-pill);background:var(--k-accent-50);color:var(--k-accent);font-weight:600;margin-bottom:18px}
.k-hero3 h1{font-size:clamp(2rem,4.4vw,3rem);line-height:1.25;font-weight:700;margin-bottom:16px}
.k-hl{color:var(--k-brand);border-bottom:3px solid var(--k-accent);padding-bottom:2px}
.k-hero3-sub{font-size:1.0625rem;color:var(--k-ink-2);max-width:34em;margin-bottom:28px}
.k-hero3-actions{display:flex;flex-wrap:wrap;gap:16px;align-items:center}
.k-pill-group{background:var(--k-surface);border:1px solid var(--k-line);border-radius:var(--r-lg);padding:26px;box-shadow:var(--sh1)}
.k-pill-group h2{font-size:14px;font-weight:600;color:var(--k-ink-3);letter-spacing:.04em;margin-bottom:14px}
.k-pills{display:flex;flex-wrap:wrap;gap:10px}
.k-pill{display:inline-block;font-size:13px;padding:6px 14px;border-radius:var(--r-pill);background:var(--k-brand-50);color:var(--k-brand);border:1px solid transparent;transition:border-color .18s ease,background-color .18s ease}
.k-pill:hover{border-color:var(--k-brand-100);background:var(--k-brand-100)}
/* ---------- sections ---------- */
.k-section{padding:96px 0}
.k-section-alt{background:#F2F6F4}
.k-sec-head{max-width:44em;margin-bottom:44px}
.k-sec-head h2{font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.3;font-weight:700;margin-bottom:16px}
.k-sec-head p{color:var(--k-ink-2);font-size:1.0625rem}
.k-sec-head-center{max-width:40em;margin:0 auto 52px;text-align:center}
/* ---------- timeline ---------- */
.k-timeline{list-style:none;position:relative;max-width:960px}
.k-step{position:relative;padding-left:56px;padding-bottom:28px}
.k-step:last-child{padding-bottom:0}
.k-step::before{content:"";position:absolute;left:9px;top:28px;bottom:0;width:1px;background:var(--k-line)}
.k-step:last-child::before{display:none}
.k-step-dot{position:absolute;left:0;top:20px;width:20px;height:20px;border-radius:50%;border:2px solid var(--k-brand);background:#fff;box-sizing:border-box;transition:background-color .2s ease,box-shadow .2s ease}
.k-step:hover .k-step-dot{box-shadow:0 0 0 5px var(--k-brand-50)}
.k-step.is-current .k-step-dot{background:var(--k-brand)}
.k-step-body{display:flex;gap:26px;align-items:flex-start;background:var(--k-surface);border:1px solid var(--k-line);border-radius:var(--r-card);padding:24px 26px;box-shadow:var(--sh1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.k-step:hover .k-step-body{transform:translateY(-2px);box-shadow:var(--sh2);border-color:var(--k-brand-100)}
.k-step-index{font-size:28px;font-weight:300;color:var(--k-accent);line-height:1;flex:none;min-width:42px}
.k-step-text{flex:1;min-width:0}
.k-step-text h3{font-size:1.125rem;font-weight:600;line-height:1.4;margin-bottom:10px}
.k-step-text p{font-size:0.9375rem;line-height:1.8;color:var(--k-ink-2);margin:0}
.k-step-thumb{flex:none;width:168px;aspect-ratio:4/3;border-radius:12px;overflow:hidden;background:var(--k-brand-50)}
.k-step-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.k-step:hover .k-step-thumb img{transform:scale(1.03)}
.k-step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.k-tag{font-size:12px;padding:3px 10px;border-radius:var(--r-pill);background:var(--k-brand-50);color:var(--k-brand)}
/* ---------- resources ---------- */
.k-res-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
.k-res-card{display:flex;flex-direction:column;background:var(--k-surface);border:1px solid var(--k-line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease}
.k-res-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:var(--k-brand-100)}
.k-res-cover{aspect-ratio:16/9;background:var(--k-brand-50);overflow:hidden}
.k-res-cover img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease}
.k-res-card:hover .k-res-cover img{transform:scale(1.03)}
.k-res-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1}
.k-res-body h3{font-size:1.125rem;font-weight:600;margin-bottom:10px}
.k-res-body p{font-size:0.9375rem;line-height:1.8;color:var(--k-ink-2);margin-bottom:18px}
.k-res-meta{font-size:13px;color:var(--k-ink-3);margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;padding-top:16px;border-top:1px solid var(--k-line)}
.k-res-meta a{display:inline-flex;align-items:center;gap:6px;font-weight:600;text-decoration:none}
.k-res-meta a svg{width:15px;height:15px;transition:transform .18s ease}
.k-res-meta a:hover svg{transform:translateX(3px)}
/* ---------- faq ---------- */
.k-faq{display:grid;grid-template-columns:minmax(0,4fr) minmax(0,8fr);gap:48px;align-items:start}
.k-faq-head h2{font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.3;font-weight:700;margin-bottom:16px}
.k-faq-head p{color:var(--k-ink-2);font-size:0.9375rem;margin:0}
.k-acc .accordion-item{background:var(--k-surface);border:1px solid var(--k-line);border-radius:14px;overflow:hidden;margin-bottom:12px;box-shadow:var(--sh1)}
.k-acc .accordion-button{position:relative;display:flex;align-items:center;gap:14px;width:100%;padding:18px 20px;font-size:16px;font-weight:600;color:var(--k-ink);background:var(--k-surface);box-shadow:none;border:0;border-radius:14px}
.k-acc .accordion-button:not(.collapsed){color:var(--k-brand)}
.k-acc .accordion-button:not(.collapsed)::before{content:"";position:absolute;left:0;top:14px;bottom:14px;width:4px;border-radius:0 4px 4px 0;background:var(--k-brand)}
.k-acc .accordion-button:focus{box-shadow:0 0 0 2px var(--k-brand-100);z-index:2}
.k-acc .accordion-button::after{display:none}
.k-acc .k-plus{width:18px;height:18px;margin-left:auto;flex:none;color:var(--k-ink-3);transition:transform .22s ease,color .22s ease}
.k-acc .accordion-button:not(.collapsed) .k-plus{transform:rotate(45deg);color:var(--k-accent)}
.k-acc .accordion-body{padding:2px 20px 20px;font-size:0.9375rem;line-height:1.8;color:var(--k-ink-2)}
/* ---------- cta ---------- */
.k-cta-wrap{padding:0 0 96px}
.k-cta{position:relative;overflow:hidden;background:var(--k-dark);border-radius:24px;padding:64px;text-align:center}
.k-cta::before{content:"";position:absolute;inset:0;background-image:url(/assets/images/backpic/back-3.png);background-size:cover;background-position:center;opacity:.06;pointer-events:none}
.k-cta h2{position:relative;font-size:clamp(1.5rem,2.6vw,2.125rem);line-height:1.3;font-weight:700;color:#fff;margin-bottom:16px}
.k-cta p{position:relative;color:#B9C8C5;max-width:38em;margin:0 auto 32px}
.k-cta-btns{position:relative;display:flex;flex-wrap:wrap;gap:16px;justify-content:center}
.k-cta-btns .k-btn{max-width:200px;min-width:150px}
/* ---------- footer ---------- */
.k-footer{position:relative;background:var(--k-dark);color:#B9C8C5;padding:64px 0 0}
.k-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,var(--k-brand),rgba(14,111,99,0))}
.k-footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;padding-bottom:48px}
.k-footer h4{font-size:14px;font-weight:600;color:#9FD3C9;margin-bottom:16px}
.k-footer ul{list-style:none}
.k-footer li{line-height:2.1}
.k-footer a{font-size:14px;color:#B9C8C5;text-decoration:none;display:inline-block;transition:color .18s ease,transform .18s ease}
.k-footer a:hover{color:#fff;transform:translateX(2px)}
.k-footer .k-logo-name{color:#fff}
.k-footer .k-logo-name b{color:#7FD0C1}
.k-footer-slogan{font-size:14px;line-height:1.9;margin:14px 0 12px;color:#B9C8C5}
.k-footer-kw{font-size:13px;color:#7E918D;margin:0}
.k-footer-bottom{display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;border-top:1px solid rgba(255,255,255,.08);padding:20px 0;font-size:13px;color:#7E918D}
/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .k-nav{gap:20px}
  .k-search{width:200px}
}
@media (max-width:991.98px){
  .k-header-inner{position:relative}
  .k-burger{display:flex}
  .k-nav-wrap{position:absolute;top:68px;left:0;right:0;display:none;flex-direction:column;align-items:stretch;gap:0;background:#fff;border-bottom:1px solid var(--k-line);box-shadow:var(--sh2);padding:18px 20px 24px}
  .k-nav-wrap.is-open{display:flex}
  .k-nav{flex-direction:column;align-items:stretch;gap:0;width:100%}
  .k-nav li{width:100%}
  .k-nav-link{display:block;font-size:16px;line-height:52px;padding:0;border-bottom:1px solid var(--k-line)}
  .k-nav-link::after{display:none}
  .k-tools{flex-direction:column;align-items:stretch;gap:14px;margin:18px 0 0}
  .k-search{width:100%}
  .k-quick{line-height:40px}
  .k-tools .k-btn{width:100%}
  .k-hero3-inner{grid-template-columns:1fr;gap:32px}
  .k-hero3{padding:32px 0 56px}
  .k-section{padding:72px 0}
  .k-cta{padding:48px 32px}
  .k-cta-wrap{padding-bottom:72px}
  .k-faq{grid-template-columns:1fr;gap:32px}
  .k-footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767.98px){
  body{font-size:1rem}
  .k-section{padding:56px 0}
  .k-sec-head{margin-bottom:32px}
  .k-res-grid{grid-template-columns:1fr;gap:24px}
  .k-step{padding-left:40px}
  .k-step::before{left:9px}
  .k-step-body{flex-direction:column;gap:18px;padding:20px}
  .k-step-thumb{width:100%;aspect-ratio:16/9}
  .k-step-index{font-size:22px;min-width:0}
  .k-hero3-actions .k-btn{width:100%}
  .k-cta{padding:40px 22px;border-radius:20px}
  .k-cta-btns .k-btn{width:100%;max-width:none}
  .k-footer{padding-top:48px}
  .k-footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:32px}
}
@media (max-width:575.98px){
  .k-res-body{padding:20px}
  .k-step-body{padding:18px;border-radius:14px}
  .k-res-cover,.k-step-thumb{border-radius:12px}
}