/* roulang page: index */
:root{
  --pk-green-900:#0B3B2E;
  --pk-green-700:#14654B;
  --pk-green-050:#E8F1EC;
  --pk-amber-500:#D8A02C;
  --pk-amber-700:#A87715;
  --pk-clay-600:#B4492F;
  --pk-paper:#F7F4EC;
  --pk-surface:#FFFFFF;
  --pk-ink-900:#14201B;
  --pk-ink-600:#4A5A53;
  --pk-ink-400:#7C8B84;
  --pk-line:rgba(11,59,46,.12);
  --pk-line-strong:rgba(11,59,46,.22);
  --sh-1:0 1px 2px rgba(11,59,46,.06);
  --sh-2:0 8px 24px rgba(11,59,46,.10);
  --sh-3:0 20px 48px rgba(11,59,46,.16);
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
  --gap:24px;
  --pad:24px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--pk-ink-600);
  background:var(--pk-paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--pk-green-700);text-decoration:none;transition:color .16s ease,box-shadow .16s ease}
a:hover{color:var(--pk-green-900)}
h1,h2,h3,h4{margin:0;color:var(--pk-ink-900);font-weight:700;line-height:1.3}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
button{font-family:inherit;font-size:inherit}
input,textarea,select{font-family:inherit;font-size:16px}
:focus-visible{outline:2px solid var(--pk-green-700);outline-offset:2px;border-radius:6px}

/* 栅格基础 */
.grid-container{width:100%;max-width:1240px;margin:0 auto;padding-left:var(--pad);padding-right:var(--pad)}
.grid-x{display:flex;flex-wrap:wrap;margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px;min-width:0;flex:0 0 auto}
.small-12{flex:0 0 100%;max-width:100%}
@media screen and (min-width:640px){
  .medium-6{flex:0 0 50%;max-width:50%}
  .medium-4{flex:0 0 33.3333%;max-width:33.3333%}
  .medium-12{flex:0 0 100%;max-width:100%}
}
@media screen and (min-width:1024px){
  .large-3{flex:0 0 25%;max-width:25%}
  .large-4{flex:0 0 33.3333%;max-width:33.3333%}
  .large-5{flex:0 0 41.6667%;max-width:41.6667%}
  .large-6{flex:0 0 50%;max-width:50%}
  .large-7{flex:0 0 58.3333%;max-width:58.3333%}
  .large-8{flex:0 0 66.6667%;max-width:66.6667%}
  .large-12{flex:0 0 100%;max-width:100%}
}

/* 顶部导航 */
.pk-header{
  position:sticky;top:0;z-index:80;
  background:rgba(247,244,236,.94);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(10px);
  transition:background .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pk-header.is-stuck{background:#fff;box-shadow:var(--sh-1);border-bottom-color:var(--pk-line)}
.pk-nav{display:flex;align-items:center;gap:20px;height:76px}
.pk-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--pk-ink-900)}
.pk-logo-mark{
  width:36px;height:36px;flex:0 0 auto;border-radius:50%;
  background:var(--pk-green-900);
  display:grid;place-items:center;position:relative;
}
.pk-logo-mark::after{content:"";width:15px;height:15px;border-radius:50%;border:2px dashed var(--pk-amber-500)}
.pk-logo-text{display:flex;flex-direction:column;line-height:1.05}
.pk-logo-text b{font-size:15px;font-weight:800;letter-spacing:.01em}
.pk-logo-text span{font-size:11px;color:var(--pk-ink-400);letter-spacing:.14em;margin-top:3px}
.pk-menu{display:flex;align-items:center;gap:4px;margin-left:8px;flex:1 1 auto}
.pk-menu>li{position:relative}
.pk-menu>li>a,.pk-mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  padding:8px 12px;border-radius:10px;border:0;background:transparent;
  color:var(--pk-ink-600);font-size:15px;font-weight:600;cursor:pointer;
  position:relative;transition:color .16s ease,background .16s ease;
}
.pk-menu>li>a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--pk-amber-500);border-radius:2px;
  transform:scaleX(0);transform-origin:left;transition:transform .16s ease;
}
.pk-menu>li>a:hover,.pk-menu>li>a:focus-visible,.pk-mega-trigger:hover,.pk-mega-trigger:focus-visible{
  color:var(--pk-green-900);background:var(--pk-green-050);
}
.pk-menu>li>a:hover::after,.pk-menu>li>a.active::after{transform:scaleX(1)}
.pk-menu>li>a.active{color:var(--pk-green-900)}
.pk-mega-trigger i{font-size:11px;transition:transform .16s ease;color:var(--pk-ink-400)}
.pk-mega.is-open .pk-mega-trigger i,.pk-mega:hover .pk-mega-trigger i{transform:rotate(180deg)}
.pk-mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:760px;
  background:#fff;border-radius:18px;box-shadow:var(--sh-3);
  border-top:3px solid var(--pk-green-900);
  padding:24px;display:grid;grid-template-columns:1fr 1.1fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
  z-index:90;
}
.pk-mega:hover .pk-mega-panel,.pk-mega:focus-within .pk-mega-panel,.pk-mega.is-open .pk-mega-panel{
  opacity:1;visibility:visible;transform:translateY(0);
}
.pk-mega-col h4{font-size:12px;letter-spacing:.06em;color:var(--pk-ink-400);font-weight:700;margin-bottom:12px}
.pk-mega-col ul li{margin-bottom:6px}
.pk-mega-col ul li a{display:block;padding:6px 0;font-size:14px;color:var(--pk-ink-600);font-weight:500}
.pk-mega-col ul li a:hover{color:var(--pk-green-900);box-shadow:inset 0 -2px 0 var(--pk-amber-500)}
.pk-mega-mini{display:flex;gap:10px;align-items:flex-start;padding:8px 0}
.pk-mega-mini img{width:56px;height:42px;object-fit:cover;border-radius:8px;flex:0 0 auto}
.pk-mega-mini b{display:block;font-size:14px;color:var(--pk-ink-900);font-weight:600;line-height:1.5}
.pk-mega-mini span{font-size:12px;color:var(--pk-ink-400)}
.pk-mega-card{
  background:var(--pk-green-050);border-radius:14px;padding:18px;
  display:flex;flex-direction:column;gap:10px;justify-content:center;
}
.pk-mega-card b{font-size:15px;color:var(--pk-green-900);font-weight:700}
.pk-mega-card p{font-size:13px;color:var(--pk-ink-600);line-height:1.7}
.pk-nav-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.pk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:background .16s ease,color .16s ease,box-shadow .16s ease,transform .16s ease,border-color .16s ease;
  white-space:nowrap;
}
.pk-btn-primary{background:var(--pk-green-900);color:#fff;box-shadow:var(--sh-1)}
.pk-btn-primary:hover{background:var(--pk-green-700);color:#fff;box-shadow:var(--sh-2);transform:translateY(-2px)}
.pk-btn-primary:active{transform:translateY(0)}
.pk-btn-ghost{background:transparent;color:var(--pk-green-900);border-color:var(--pk-green-700)}
.pk-btn-ghost:hover{background:var(--pk-green-050);color:var(--pk-green-900);border-color:var(--pk-green-900)}
.pk-btn-amber{background:var(--pk-amber-500);color:#2A1E00}
.pk-btn-amber:hover{background:var(--pk-amber-700);color:#fff;transform:translateY(-2px)}
.pk-btn-sm{height:40px;padding:0 16px;font-size:14px}
.pk-nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--pk-line);
  background:#fff;color:var(--pk-green-900);cursor:pointer;
}
.pk-drawer{
  display:none;background:#fff;border-top:1px solid var(--pk-line);
  box-shadow:var(--sh-1);padding:12px 0 20px;
}
.pk-drawer.is-open{display:block}
.pk-drawer ul li a{
  display:flex;align-items:center;justify-content:space-between;
  padding:12px 4px;border-bottom:1px solid var(--pk-line);
  font-size:15px;font-weight:600;color:var(--pk-ink-600);
}
.pk-drawer ul li a:hover{color:var(--pk-green-900)}
.pk-drawer ul li a.active{color:var(--pk-green-900);box-shadow:inset 3px 0 0 var(--pk-amber-500);padding-left:12px}

/* Hero */
.pk-hero{position:relative;overflow:hidden;padding:56px 0 96px;background:var(--pk-paper)}
.pk-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:
    repeating-linear-gradient(45deg,rgba(11,59,46,.03) 0 1px,transparent 1px 16px),
    repeating-linear-gradient(-45deg,rgba(11,59,46,.03) 0 1px,transparent 1px 16px);
}
.pk-hero .grid-container{position:relative;z-index:2}
.pk-hero-copy{display:flex;flex-direction:column;gap:20px;padding-top:24px}
.pk-pill{
  display:inline-flex;align-items:center;gap:8px;align-self:flex-start;
  padding:6px 14px;border-radius:999px;background:var(--pk-green-050);
  color:var(--pk-green-900);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.pk-pill i{color:var(--pk-amber-500);font-size:12px}
.pk-hero h1{font-size:44px;line-height:1.2;font-weight:800;letter-spacing:-.01em}
.pk-hero-sub{font-size:18px;color:var(--pk-ink-600);line-height:1.7;max-width:520px}
.pk-hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:4px}
.pk-badges{display:flex;flex-wrap:wrap;align-items:center;gap:12px;margin-top:12px;font-size:12px;color:var(--pk-ink-400)}
.pk-badges span{display:inline-flex;align-items:center;gap:6px}
.pk-badges i{color:var(--pk-green-700);font-size:12px}
.pk-badges em{width:1px;height:12px;background:var(--pk-line-strong);display:inline-block}
.pk-hero-visual{position:relative;margin-top:8px}
.pk-hero-visual img{
  width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:20px;
  box-shadow:var(--sh-3);background:var(--pk-green-050);
}
.pk-hero-ring{
  position:absolute;right:-40px;bottom:-30px;width:180px;height:180px;border-radius:50%;
  border:14px dashed rgba(216,160,44,.18);pointer-events:none;
}
.pk-float-card{
  position:absolute;left:-18px;bottom:-24px;background:#fff;border-radius:16px;
  padding:16px 20px;box-shadow:var(--sh-3);display:flex;align-items:center;gap:14px;
  border:1px solid var(--pk-line);
}
.pk-float-card strong{font-size:30px;line-height:1;color:var(--pk-green-900);font-weight:800;font-variant-numeric:tabular-nums}
.pk-float-card span{display:block;font-size:12px;color:var(--pk-ink-400);margin-top:4px}
.pk-float-bar{display:flex;gap:4px;margin-top:8px}
.pk-float-bar i{display:block;width:16px;height:4px;border-radius:2px;background:var(--pk-amber-500)}
.pk-float-bar i:nth-child(2){opacity:.6}
.pk-float-bar i:nth-child(3){opacity:.3}

/* 通用板块 */
.pk-section{padding:96px 0}
.pk-section-alt{background:var(--pk-surface)}
.pk-section-tint{background:var(--pk-green-050)}
.pk-section-head{max-width:720px;margin-bottom:48px}
.pk-section-head::before{
  content:"";display:block;width:32px;height:4px;border-radius:2px;
  background:var(--pk-amber-500);margin-bottom:16px;
}
.pk-section-head h2{font-size:32px;line-height:1.3;margin-bottom:14px}
.pk-section-head p{font-size:16px;color:var(--pk-ink-600);max-width:640px}
.pk-section-head-center{margin-left:auto;margin-right:auto;text-align:center}
.pk-section-head-center::before{margin-left:auto;margin-right:auto}

/* 服务卡片 6:3:3 */
.pk-card{
  background:var(--pk-surface);border:1px solid var(--pk-line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
  height:100%;display:flex;flex-direction:column;
}
.pk-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--pk-line-strong)}
.pk-service-main{padding:0;overflow:hidden;position:relative}
.pk-service-main img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-card) var(--r-card) 0 0}
.pk-service-body{padding:28px}
.pk-service-body h3{font-size:22px;margin-bottom:12px}
.pk-service-body p{font-size:15px;line-height:1.8;color:var(--pk-ink-600)}
.pk-tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  background:var(--pk-green-050);color:var(--pk-green-900);font-size:12px;font-weight:600;
}
.pk-corner{
  position:absolute;top:16px;left:16px;background:var(--pk-amber-500);color:#2A1E00;
  font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px;
}
.pk-service-side{padding:26px;position:relative;overflow:hidden}
.pk-service-side::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--pk-green-700);
}
.pk-icon-round{
  width:48px;height:48px;border-radius:50%;background:var(--pk-green-050);
  display:grid;place-items:center;color:var(--pk-amber-700);font-size:18px;margin-bottom:16px;
}
.pk-service-side h3{font-size:18px;margin-bottom:10px}
.pk-service-side p{font-size:14px;line-height:1.8;color:var(--pk-ink-600)}
.pk-link-more{
  margin-top:auto;padding-top:18px;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--pk-green-700);
}
.pk-link-more i{transition:transform .18s ease}
.pk-link-more:hover{color:var(--pk-green-900);box-shadow:inset 0 -2px 0 var(--pk-amber-500)}
.pk-link-more:hover i{transform:translateX(4px)}

/* 数据条 */
.pk-stats{background:var(--pk-green-050);padding:56px 0}
.pk-stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.pk-stat{padding:8px 20px;text-align:center;border-right:1px solid var(--pk-line-strong)}
.pk-stat:last-child{border-right:0}
.pk-stat strong{
  display:block;font-size:42px;line-height:1.1;font-weight:800;color:var(--pk-green-900);
  font-variant-numeric:tabular-nums;
}
.pk-stat span{display:block;font-size:13px;color:var(--pk-ink-600);margin-top:8px}

/* 资讯卡 */
.pk-card-media{padding:0;overflow:hidden}
.pk-card-media .pk-thumb{overflow:hidden;border-radius:var(--r-card) var(--r-card) 0 0;background:var(--pk-green-050)}
.pk-card-media .pk-thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .35s ease}
.pk-card-media:hover .pk-thumb img{transform:scale(1.03)}
.pk-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.pk-card-body h3{font-size:17px;line-height:1.5;font-weight:600;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.pk-card-body p{font-size:14px;line-height:1.75;color:var(--pk-ink-600);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.pk-card-foot{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--pk-line);
  display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--pk-ink-400);
  font-variant-numeric:tabular-nums;
}
.pk-card-foot i{color:var(--pk-green-700);transition:transform .18s ease}
.pk-card-media:hover h3{color:var(--pk-green-900)}
.pk-card-media:hover .pk-card-foot i{transform:translateX(4px)}
.pk-feature{flex-direction:row}
.pk-feature .pk-thumb{border-radius:var(--r-card) 0 0 var(--r-card);flex:0 0 46%;max-width:46%}
.pk-feature .pk-thumb img{height:100%;aspect-ratio:auto;min-height:230px}
.pk-feature .pk-card-body{padding:26px}
.pk-feature h3{font-size:20px;-webkit-line-clamp:2}
.pk-empty{
  background:var(--pk-surface);border:1px dashed var(--pk-line-strong);border-radius:var(--r-card);
  padding:56px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.pk-empty i{font-size:26px;color:var(--pk-amber-500)}
.pk-empty p{font-size:15px;color:var(--pk-ink-600)}

/* 图文交错 */
.pk-scene{display:flex;align-items:center;gap:48px}
.pk-scene+.pk-scene{margin-top:72px}
.pk-scene img{width:100%;aspect-ratio:3/2;object-fit:cover;border-radius:var(--r-img);box-shadow:var(--sh-2)}
.pk-scene-copy h3{font-size:24px;margin-bottom:14px}
.pk-scene-copy p{font-size:15px;line-height:1.85;color:var(--pk-ink-600);margin-bottom:18px}
.pk-scene-list li{display:flex;gap:10px;font-size:14px;color:var(--pk-ink-600);padding:7px 0}
.pk-scene-list i{color:var(--pk-amber-700);margin-top:6px;font-size:12px}

/* 流程 */
.pk-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.pk-step{
  background:var(--pk-surface);border:1px solid var(--pk-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);transition:box-shadow .18s ease,transform .18s ease;
}
.pk-step:hover{box-shadow:var(--sh-2);transform:translateY(-2px)}
.pk-step b{
  display:block;font-size:26px;font-weight:800;color:var(--pk-amber-500);
  font-variant-numeric:tabular-nums;margin-bottom:12px;letter-spacing:.02em;
}
.pk-step h3{font-size:18px;margin-bottom:10px}
.pk-step p{font-size:14px;line-height:1.8;color:var(--pk-ink-600)}
.pk-compare{
  margin-top:32px;background:var(--pk-surface);border:1px solid var(--pk-line);
  border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-1);
}
.pk-compare h3{font-size:18px;margin-bottom:18px}
.pk-compare-row{
  display:grid;grid-template-columns:1.1fr 1.4fr 1fr;gap:16px;
  padding:14px 0;border-bottom:1px solid var(--pk-line);font-size:14px;
}
.pk-compare-row:last-child{border-bottom:0;padding-bottom:0}
.pk-compare-row.header{font-weight:700;color:var(--pk-ink-900);font-size:13px;letter-spacing:.04em}
.pk-compare-row span:first-child{color:var(--pk-ink-900);font-weight:600}

/* FAQ */
.pk-faq{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.pk-faq details{
  background:var(--pk-surface);border:1px solid var(--pk-line);border-radius:14px;
  padding:20px 24px;transition:background .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.pk-faq details[open]{background:var(--pk-green-050);border-color:var(--pk-green-700);box-shadow:var(--sh-1)}
.pk-faq summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:14px;
  font-size:16px;font-weight:600;color:var(--pk-ink-900);line-height:1.6;
}
.pk-faq summary::-webkit-details-marker{display:none}
.pk-faq summary .num{
  font-variant-numeric:tabular-nums;color:var(--pk-amber-700);font-weight:700;font-size:14px;flex:0 0 auto;
}
.pk-faq summary .sign{
  margin-left:auto;width:24px;height:24px;flex:0 0 auto;border-radius:50%;
  border:1px solid var(--pk-line-strong);display:grid;place-items:center;
  color:var(--pk-green-900);font-size:13px;transition:transform .2s ease,background .2s ease;
}
.pk-faq details[open] summary .sign{transform:rotate(45deg);background:#fff}
.pk-faq .answer{padding-top:16px;font-size:15px;line-height:1.85;color:var(--pk-ink-600)}

/* CTA */
.pk-cta{background:var(--pk-green-900);padding:80px 0;position:relative;overflow:hidden}
.pk-cta::after{
  content:"";position:absolute;right:-60px;top:-60px;width:280px;height:280px;border-radius:50%;
  border:18px dashed rgba(216,160,44,.14);pointer-events:none;
}
.pk-cta .grid-container{position:relative;z-index:2}
.pk-cta h2{color:#fff;font-size:32px;line-height:1.3;margin-bottom:16px}
.pk-cta p{color:rgba(255,255,255,.78);font-size:15px;line-height:1.85;max-width:460px;margin-bottom:24px}
.pk-cta-list li{display:flex;gap:10px;color:rgba(255,255,255,.85);font-size:14px;padding:6px 0}
.pk-cta-list i{color:var(--pk-amber-500);margin-top:6px;font-size:12px}
.pk-form-card{
  background:#fff;border-radius:18px;padding:28px;box-shadow:var(--sh-3);
}
.pk-form-card h3{font-size:19px;margin-bottom:6px}
.pk-form-card>p{font-size:13px;color:var(--pk-ink-400);margin-bottom:20px}
.pk-field{margin-bottom:16px}
.pk-field label{display:block;font-size:13px;font-weight:600;color:var(--pk-ink-900);margin-bottom:8px}
.pk-field label i{color:var(--pk-amber-500);font-size:10px;margin-left:4px;vertical-align:middle}
.pk-field input,.pk-field textarea,.pk-field select{
  width:100%;height:48px;padding:0 14px;border:1px solid var(--pk-line-strong);
  border-radius:10px;background:#fff;color:var(--pk-ink-900);
  transition:border-color .16s ease,box-shadow .16s ease;
}
.pk-field textarea{height:110px;padding:12px 14px;resize:vertical;line-height:1.7}
.pk-field input:focus,.pk-field textarea:focus,.pk-field select:focus{
  outline:0;border-color:var(--pk-green-700);box-shadow:0 0 0 3px rgba(20,101,75,.14);
}
.pk-form-row{display:flex;gap:16px}
.pk-form-row .pk-field{flex:1 1 0}
.pk-form-actions{margin-top:20px;display:flex;justify-content:flex-end}
.pk-form-note{font-size:12px;color:var(--pk-ink-400);margin-top:12px;line-height:1.7}

/* 页脚 */
.pk-footer{background:var(--pk-green-900);color:rgba(255,255,255,.72);padding:72px 0 0}
.pk-footer h4{color:#fff;font-size:14px;margin-bottom:18px;letter-spacing:.04em}
.pk-footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.pk-footer-brand .pk-logo-mark{background:rgba(255,255,255,.1)}
.pk-footer-brand b{color:#fff;font-size:16px;font-weight:800}
.pk-footer p{font-size:13px;line-height:1.9}
.pk-footer ul li{margin-bottom:10px}
.pk-footer ul li a{font-size:14px;color:rgba(255,255,255,.72)}
.pk-footer ul li a:hover{color:var(--pk-amber-500)}
.pk-footer-contact li{font-size:14px;display:flex;gap:10px;margin-bottom:12px;color:rgba(255,255,255,.72)}
.pk-footer-contact i{color:var(--pk-amber-500);margin-top:5px;font-size:12px}
.pk-disclaimer{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  font-size:12px;color:rgba(255,255,255,.5);line-height:1.8;
}
.pk-footer-bottom{
  margin-top:20px;padding:20px 0;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:12px;color:rgba(255,255,255,.5);
}
.pk-footer-bottom a{color:rgba(255,255,255,.6)}
.pk-footer-bottom a:hover{color:var(--pk-amber-500)}
.pk-to-top{
  position:fixed;right:24px;bottom:28px;width:46px;height:46px;border-radius:14px;
  background:var(--pk-green-900);color:#fff;border:0;cursor:pointer;display:grid;place-items:center;
  box-shadow:var(--sh-2);opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease,background .2s ease;z-index:70;
}
.pk-to-top.is-show{opacity:1;visibility:visible;transform:translateY(0)}
.pk-to-top:hover{background:var(--pk-green-700)}

/* 响应式 */
@media screen and (max-width:1199px){
  .pk-mega-panel{width:640px}
}
@media screen and (max-width:1023px){
  .pk-menu{display:none}
  .pk-nav-toggle{display:grid;place-items:center}
  .pk-nav-cta .pk-btn-ghost{display:none}
  .pk-hero{padding:40px 0 72px}
  .pk-hero h1{font-size:34px}
  .pk-hero-copy{padding-top:0;margin-bottom:32px}
  .pk-hero-visual{margin-top:0}
  .pk-float-card{left:12px;bottom:-18px}
  .pk-hero-ring{right:-70px}
  .pk-section{padding:64px 0}
  .pk-section-head{margin-bottom:36px}
  .pk-section-head h2{font-size:26px}
  .pk-scene{flex-direction:column;gap:24px}
  .pk-scene.reverse .pk-scene-copy{order:2}
  .pk-scene.reverse img{order:1}
  .pk-scene+.pk-scene{margin-top:48px}
  .pk-steps{grid-template-columns:1fr;gap:18px}
  .pk-cta{padding:64px 0}
  .pk-cta h2{font-size:26px}
  .pk-form-card{margin-top:32px}
}
@media screen and (max-width:767px){
  :root{--pad:20px;--gap:16px}
  .pk-nav{height:66px}
  .pk-nav-cta .pk-btn{display:none}
  .pk-hero{padding:28px 0 56px}
  .pk-hero h1{font-size:28px}
  .pk-hero-sub{font-size:16px}
  .pk-hero-actions .pk-btn{flex:1 1 100%}
  .pk-section{padding:56px 0}
  .pk-section-head h2{font-size:22px}
  .pk-service-body{padding:20px}
  .pk-feature{flex-direction:column}
  .pk-feature .pk-thumb{flex:0 0 auto;max-width:100%;border-radius:var(--r-card) var(--r-card) 0 0}
  .pk-feature .pk-thumb img{aspect-ratio:16/9;min-height:0}
  .pk-stats{padding:40px 0}
  .pk-stats-grid{grid-template-columns:repeat(2,1fr);gap:8px 0}
  .pk-stat{border-right:0;padding:14px 10px}
  .pk-stat strong{font-size:32px}
  .pk-compare{padding:20px}
  .pk-compare-row{grid-template-columns:1fr;gap:4px;padding:12px 0}
  .pk-compare-row.header{display:none}
  .pk-form-row{flex-direction:column;gap:0}
  .pk-form-actions .pk-btn{width:100%}
  .pk-footer{padding:56px 0 0}
  .pk-to-top{right:16px;bottom:18px}
}
@media screen and (max-width:520px){
  .pk-hero h1{font-size:26px}
  .pk-float-card{padding:12px 16px}
  .pk-float-card strong{font-size:24px}
  .pk-faq details{padding:16px 18px}
  .pk-faq summary{font-size:15px}
}

/* roulang page: article */
:root{
  --pk-green-900:#0B3B2E;
  --pk-green-700:#14654B;
  --pk-green-050:#E8F1EC;
  --pk-amber-500:#D8A02C;
  --pk-amber-700:#A87715;
  --pk-clay-600:#B4492F;
  --pk-paper:#F7F4EC;
  --pk-surface:#FFFFFF;
  --pk-ink-900:#14201B;
  --pk-ink-600:#4A5A53;
  --pk-ink-400:#7C8B84;
  --pk-line:rgba(11,59,46,.12);
  --pk-line-strong:rgba(11,59,46,.22);
  --sh-1:0 1px 2px rgba(11,59,46,.06);
  --sh-2:0 8px 24px rgba(11,59,46,.10);
  --sh-3:0 20px 48px rgba(11,59,46,.16);
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --sp-1:4px; --sp-2:8px; --sp-3:12px; --sp-4:16px; --sp-5:24px; --sp-6:32px; --sp-7:48px; --sp-8:64px; --sp-9:96px;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--pk-paper);
  color:var(--pk-ink-600);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--pk-green-700);text-decoration:none;}
a:hover{color:var(--pk-green-900);}
h1,h2,h3,h4{color:var(--pk-ink-900);margin:0;line-height:1.3;}
p{margin:0;}
ul,ol{margin:0;padding:0;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:2px solid var(--pk-green-700);outline-offset:2px;}

.grid-container{max-width:1240px;margin:0 auto;padding-left:24px;padding-right:24px;width:100%;}

/* ============ 按钮 ============ */
.pk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;background:var(--pk-green-900);color:#fff;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.pk-btn:hover{background:var(--pk-green-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh-2);}
.pk-btn:active{transform:translateY(0);box-shadow:var(--sh-1);}
.pk-btn-amber{background:var(--pk-amber-500);color:#22190A;}
.pk-btn-amber:hover{background:var(--pk-amber-700);color:#fff;}
.pk-btn-ghost{background:transparent;color:var(--pk-green-900);border-color:var(--pk-line-strong);}
.pk-btn-ghost:hover{background:var(--pk-green-050);color:var(--pk-green-900);border-color:var(--pk-green-700);}
.pk-btn-sm{padding:8px 14px;font-size:13.5px;border-radius:10px;}
.pk-btn-block{width:100%;}

/* ============ 头部导航 ============ */
.pk-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,236,.92);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid transparent;
  transition:background .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pk-header.is-stuck{background:#fff;box-shadow:var(--sh-1);border-bottom-color:var(--pk-line);}
.pk-nav{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px;}
.pk-logo{display:flex;align-items:center;gap:10px;color:var(--pk-ink-900);}
.pk-logo-mark{
  width:34px;height:34px;border-radius:50%;flex:0 0 34px;display:block;
  background:
    radial-gradient(circle at 50% 50%, var(--pk-amber-500) 0 20%, rgba(216,160,44,0) 21%),
    repeating-conic-gradient(from 0deg, var(--pk-green-900) 0 30deg, var(--pk-green-700) 30deg 60deg);
  box-shadow:inset 0 0 0 3px rgba(255,255,255,.9),0 2px 6px rgba(11,59,46,.18);
}
.pk-logo-text{display:flex;flex-direction:column;line-height:1.15;}
.pk-logo-text b{font-size:16px;font-weight:800;letter-spacing:.2px;color:var(--pk-ink-900);}
.pk-logo-text span{font-size:11px;color:var(--pk-ink-400);letter-spacing:.16em;}
.pk-menu{display:flex;align-items:center;gap:2px;list-style:none;margin:0;padding:0;}
.pk-menu > li{position:relative;}
.pk-menu > li > a,
.pk-mega-trigger{
  position:relative;display:inline-flex;align-items:center;gap:6px;
  padding:10px 12px;border:0;background:transparent;border-radius:10px;
  font-size:14.5px;font-weight:500;color:var(--pk-ink-600);
  transition:color .16s ease,background .16s ease;
}
.pk-menu > li > a::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--pk-amber-500);border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform .16s ease;
}
.pk-menu > li > a:hover,
.pk-mega-trigger:hover{color:var(--pk-green-900);background:var(--pk-green-050);}
.pk-menu > li > a:hover::after,
.pk-menu > li > a.active::after{transform:scaleX(1);}
.pk-menu > li > a.active{color:var(--pk-green-900);font-weight:700;}
.pk-mega-trigger i{font-size:11px;transition:transform .18s ease;}
.pk-mega-panel{
  position:absolute;right:-120px;top:calc(100% + 14px);
  width:760px;max-width:min(760px,calc(100vw - 48px));
  background:#fff;border-radius:18px;box-shadow:var(--sh-3);
  border-top:3px solid var(--pk-green-900);
  padding:24px;display:grid;grid-template-columns:1fr 1.25fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(6px);pointer-events:none;
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
}
.pk-mega:hover .pk-mega-panel,
.pk-mega:focus-within .pk-mega-panel,
.pk-mega.is-open .pk-mega-panel{opacity:1;visibility:visible;transform:translateY(0);pointer-events:auto;}
.pk-mega:hover .pk-mega-trigger i,
.pk-mega.is-open .pk-mega-trigger i{transform:rotate(90deg);}
.pk-mega-col h4{font-size:12px;letter-spacing:.06em;color:var(--pk-ink-400);font-weight:700;margin-bottom:12px;text-transform:uppercase;}
.pk-mega-col ul{list-style:none;}
.pk-mega-col ul li a{display:block;padding:7px 0;font-size:14px;color:var(--pk-ink-600);border-radius:8px;transition:color .16s ease,padding-left .16s ease;}
.pk-mega-col ul li a:hover{color:var(--pk-green-700);padding-left:4px;}
.pk-mega-mini{display:flex;gap:10px;align-items:center;padding:8px;border-radius:12px;transition:background .16s ease;}
.pk-mega-mini:hover{background:var(--pk-green-050);}
.pk-mega-mini img{width:52px;height:40px;object-fit:cover;border-radius:8px;flex:0 0 52px;}
.pk-mega-mini b{display:block;font-size:13.5px;color:var(--pk-ink-900);font-weight:600;}
.pk-mega-mini span span{font-size:12px;color:var(--pk-ink-400);}
.pk-mega-card{background:var(--pk-green-050);border-radius:14px;padding:16px;border:1px solid var(--pk-line);}
.pk-mega-card b{display:block;font-size:15px;color:var(--pk-green-900);margin-bottom:6px;}
.pk-mega-card p{font-size:12.5px;color:var(--pk-ink-600);margin-bottom:12px;line-height:1.7;}
.pk-burger{display:none;width:44px;height:40px;border-radius:10px;border:1px solid var(--pk-line-strong);background:#fff;align-items:center;justify-content:center;flex-direction:column;gap:4px;}
.pk-burger span{display:block;width:18px;height:2px;background:var(--pk-green-900);border-radius:2px;transition:transform .18s ease,opacity .18s ease;}
.pk-burger[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.pk-burger[aria-expanded="true"] span:nth-child(2){opacity:0;}
.pk-burger[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}

/* ============ 面包屑 ============ */
.pk-crumb-bar{background:#fff;border-bottom:1px solid var(--pk-line);}
.pk-crumb{display:flex;align-items:center;gap:8px;list-style:none;font-size:13px;color:var(--pk-ink-400);padding:14px 0;flex-wrap:wrap;}
.pk-crumb li{display:flex;align-items:center;gap:8px;}
.pk-crumb li i{font-size:9px;color:var(--pk-ink-400);}
.pk-crumb a{color:var(--pk-ink-600);}
.pk-crumb a:hover{color:var(--pk-green-700);}
.pk-crumb li.current{color:var(--pk-ink-400);max-width:520px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;display:block;}

/* ============ 文章头 ============ */
.pk-article-hero{background:#fff;padding:40px 0 32px;border-bottom:1px solid var(--pk-line);}
.pk-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--pk-green-050);color:var(--pk-green-700);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.pk-article-hero h1{font-size:38px;font-weight:800;line-height:1.28;margin:16px 0 16px;letter-spacing:-.2px;}
.pk-meta{display:flex;flex-wrap:wrap;align-items:center;gap:12px;font-size:13.5px;color:var(--pk-ink-400);font-variant-numeric:tabular-nums;}
.pk-meta span{display:inline-flex;align-items:center;gap:6px;}
.pk-meta .divider{width:1px;height:13px;background:var(--pk-line-strong);display:inline-block;}
.pk-article-figure{margin:28px 0 0;border-radius:20px;overflow:hidden;box-shadow:var(--sh-2);background:var(--pk-green-050);}
.pk-article-figure img{width:100%;aspect-ratio:16/7;object-fit:cover;}

/* ============ 主体布局 ============ */
.pk-main{padding:56px 0 96px;}
.pk-layout{display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:48px;align-items:start;}
.pk-article-body{
  max-width:820px;
  border-left:3px solid var(--pk-green-700);
  padding-left:28px;
  font-size:16px;line-height:1.9;color:var(--pk-ink-600);
}
.pk-article-body > * + *{margin-top:20px;}
.pk-article-body p{margin-top:20px;}
.pk-article-body h2{
  position:relative;font-size:26px;font-weight:700;color:var(--pk-ink-900);
  margin-top:44px;padding-left:18px;line-height:1.4;
}
.pk-article-body h2::before{
  content:"";position:absolute;left:0;top:.42em;width:4px;height:20px;
  background:var(--pk-amber-500);border-radius:2px;
}
.pk-article-body h3{font-size:19px;font-weight:600;color:var(--pk-ink-900);margin-top:32px;}
.pk-article-body ul,.pk-article-body ol{padding-left:22px;margin-top:18px;}
.pk-article-body ul{list-style:disc;}
.pk-article-body ol{list-style:decimal;}
.pk-article-body li{margin-top:8px;line-height:1.8;}
.pk-article-body li::marker{color:var(--pk-green-700);}
.pk-article-body blockquote{
  margin-top:26px;background:var(--pk-green-050);border-left:4px solid var(--pk-green-700);
  border-radius:0 12px 12px 0;padding:16px 20px;color:var(--pk-green-900);
}
.pk-article-body blockquote p{margin-top:0;}
.pk-article-body img{border-radius:var(--r-img);margin-top:24px;box-shadow:var(--sh-1);}
.pk-article-body figure{margin-top:24px;}
.pk-article-body figcaption{font-size:13px;color:var(--pk-ink-400);margin-top:10px;text-align:center;}
.pk-article-body table{
  width:100%;border-collapse:collapse;margin-top:26px;font-size:14.5px;
  border:1px solid var(--pk-line-strong);border-radius:12px;overflow:hidden;
}
.pk-article-body thead th{background:var(--pk-green-050);color:var(--pk-green-900);font-weight:700;text-align:left;}
.pk-article-body th,.pk-article-body td{padding:12px 14px;border-bottom:1px solid var(--pk-line);line-height:1.7;}
.pk-article-body tbody tr:last-child td{border-bottom:0;}
.pk-article-body a{color:var(--pk-green-700);border-bottom:2px solid rgba(20,101,75,.25);transition:border-color .16s ease,color .16s ease;}
.pk-article-body a:hover{color:var(--pk-green-900);border-bottom-color:var(--pk-amber-500);}
.pk-article-body code{background:var(--pk-green-050);padding:2px 6px;border-radius:6px;font-size:14px;color:var(--pk-green-900);}

/* ============ 空态 ============ */
.pk-empty{
  background:#fff;border:1px dashed var(--pk-line-strong);border-radius:var(--r-card);
  padding:56px 32px;text-align:center;box-shadow:var(--sh-1);
}
.pk-empty i{font-size:34px;color:var(--pk-amber-500);}
.pk-empty h2{font-size:20px;margin:16px 0 8px;}
.pk-empty p{color:var(--pk-ink-400);font-size:14.5px;margin-bottom:20px;}

/* ============ 侧栏 ============ */
.pk-aside{position:sticky;top:104px;display:flex;flex-direction:column;gap:24px;}
.pk-side-card{background:#fff;border:1px solid var(--pk-line);border-radius:var(--r-card);padding:20px;box-shadow:var(--sh-1);}
.pk-side-card h3{font-size:13px;letter-spacing:.06em;color:var(--pk-ink-400);font-weight:700;margin-bottom:14px;text-transform:uppercase;}
.pk-toc{list-style:none;counter-reset:toc;}
.pk-toc li{counter-increment:toc;}
.pk-toc a{
  display:block;padding:8px 0 8px 24px;position:relative;
  font-size:14px;color:var(--pk-ink-600);line-height:1.6;
  border-left:2px solid var(--pk-line);transition:color .16s ease,border-color .16s ease;
}
.pk-toc a::before{
  content:counter(toc,decimal-leading-zero);position:absolute;left:8px;top:8px;
  font-size:11px;color:var(--pk-amber-700);font-variant-numeric:tabular-nums;font-weight:600;
}
.pk-toc a:hover{color:var(--pk-green-900);border-left-color:var(--pk-amber-500);}
.pk-hot-list{list-style:none;}
.pk-hot-list li + li{border-top:1px solid var(--pk-line);}
.pk-hot-list a{display:flex;gap:10px;align-items:flex-start;padding:12px 0;font-size:14px;color:var(--pk-ink-600);line-height:1.6;transition:color .16s ease;}
.pk-hot-list a:hover{color:var(--pk-green-700);}
.pk-hot-list i{color:var(--pk-amber-500);font-size:12px;margin-top:5px;}
.pk-side-cta{background:var(--pk-green-900);border-radius:var(--r-card);padding:22px;color:#fff;box-shadow:var(--sh-2);}
.pk-side-cta b{display:block;font-size:16px;color:#fff;margin-bottom:8px;}
.pk-side-cta p{font-size:13.5px;color:rgba(255,255,255,.72);margin-bottom:16px;line-height:1.75;}
.pk-side-cta .pk-btn-amber{width:100%;}

/* ============ 文末导航 ============ */
.pk-postnav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:56px;}
.pk-postnav a{
  background:#fff;border:1px solid var(--pk-line);border-radius:var(--r-card);
  padding:20px;display:flex;gap:14px;align-items:center;
  box-shadow:var(--sh-1);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.pk-postnav a:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--pk-green-700);}
.pk-postnav img{width:64px;height:48px;object-fit:cover;border-radius:10px;flex:0 0 64px;}
.pk-postnav small{font-size:12px;color:var(--pk-ink-400);letter-spacing:.06em;}
.pk-postnav b{display:block;font-size:15px;color:var(--pk-ink-900);font-weight:600;margin-top:4px;line-height:1.5;}
.pk-postnav a:hover b{color:var(--pk-green-700);}

/* ============ 相关推荐 ============ */
.pk-section{padding:80px 0;}
.pk-section-head{margin-bottom:36px;}
.pk-section-head .kicker{display:block;width:32px;height:4px;background:var(--pk-amber-500);border-radius:2px;margin-bottom:16px;}
.pk-section-head h2{font-size:30px;font-weight:700;}
.pk-section-head p{margin-top:10px;font-size:15px;color:var(--pk-ink-600);max-width:640px;}
.pk-cards{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.pk-card{
  background:#fff;border:1px solid var(--pk-line);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;
  transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.pk-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--pk-line-strong);}
.pk-card-thumb{aspect-ratio:16/9;overflow:hidden;background:var(--pk-green-050);}
.pk-card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.pk-card:hover .pk-card-thumb img{transform:scale(1.03);}
.pk-card-inner{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.pk-card-inner h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.pk-card:hover .pk-card-inner h3{color:var(--pk-green-700);}
.pk-card-inner p{font-size:14px;color:var(--pk-ink-600);line-height:1.75;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.pk-card-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--pk-line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--pk-ink-400);font-variant-numeric:tabular-nums;}
.pk-card-foot i{transition:transform .18s ease;color:var(--pk-green-700);}
.pk-card:hover .pk-card-foot i{transform:translateX(4px);}

/* ============ CTA ============ */
.pk-cta{background:var(--pk-green-900);padding:72px 0;position:relative;overflow:hidden;}
.pk-cta::after{
  content:"";position:absolute;right:-80px;bottom:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(216,160,44,.16) 0 38%,rgba(216,160,44,.06) 39% 56%,transparent 57%);
}
.pk-cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;}
.pk-cta-inner h2{color:#fff;font-size:28px;font-weight:700;}
.pk-cta-inner p{color:rgba(255,255,255,.75);margin-top:10px;font-size:15px;max-width:560px;}
.pk-cta-actions{display:flex;gap:12px;flex-wrap:wrap;}
.pk-cta-actions .pk-btn-ghost{color:#fff;border-color:rgba(255,255,255,.3);}
.pk-cta-actions .pk-btn-ghost:hover{background:rgba(255,255,255,.1);color:#fff;border-color:rgba(255,255,255,.55);}

/* ============ 页脚 ============ */
.pk-footer{background:var(--pk-green-900);color:rgba(255,255,255,.72);padding:64px 0 28px;font-size:14px;}
.pk-footer h4{color:#fff;font-size:14px;font-weight:700;margin-bottom:16px;letter-spacing:.04em;}
.pk-footer ul{list-style:none;}
.pk-footer ul li a{display:block;padding:6px 0;color:rgba(255,255,255,.72);transition:color .16s ease;}
.pk-footer ul li a:hover{color:var(--pk-amber-500);}
.pk-footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.pk-footer-brand b{color:#fff;font-size:17px;font-weight:800;}
.pk-footer p{line-height:1.8;}
.pk-footer-contact li{display:flex;align-items:flex-start;gap:10px;padding:6px 0;line-height:1.7;}
.pk-footer-contact i{color:var(--pk-amber-500);margin-top:4px;}
.pk-disclaimer{
  margin-top:40px;padding:18px 20px;border-radius:14px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  font-size:12.5px;line-height:1.85;color:rgba(255,255,255,.6);
}
.pk-footer-bottom{
  margin-top:28px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.55);
}

/* ============ 返回顶部 ============ */
.pk-totop{
  position:fixed;right:24px;bottom:24px;z-index:70;
  width:46px;height:46px;border-radius:14px;border:1px solid var(--pk-line);
  background:#fff;color:var(--pk-green-900);box-shadow:var(--sh-2);
  display:flex;align-items:center;justify-content:center;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease,background .16s ease;
}
.pk-totop.is-show{opacity:1;visibility:visible;transform:translateY(0);}
.pk-totop:hover{background:var(--pk-green-900);color:#fff;border-color:var(--pk-green-900);}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .pk-layout{grid-template-columns:minmax(0,1fr) 280px;gap:32px;}
}
@media screen and (max-width:1023px){
  .pk-menu{
    position:fixed;inset:76px 0 auto 0;z-index:55;
    flex-direction:column;align-items:stretch;gap:0;
    background:#fff;border-bottom:1px solid var(--pk-line);
    padding:12px 20px 20px;box-shadow:var(--sh-2);
    max-height:calc(100vh - 76px);overflow-y:auto;
    display:none;
  }
  .pk-menu.is-open{display:flex;}
  .pk-menu > li > a,.pk-mega-trigger{width:100%;justify-content:space-between;padding:14px 8px;font-size:15px;}
  .pk-menu > li > a::after{display:none;}
  .pk-mega-panel{
    position:static;width:100%;max-width:100%;right:auto;top:auto;
    box-shadow:none;border:1px solid var(--pk-line);border-top:3px solid var(--pk-green-900);
    grid-template-columns:1fr;gap:20px;margin:8px 0 4px;
    display:none;opacity:1;visibility:visible;transform:none;pointer-events:auto;
  }
  .pk-mega.is-open .pk-mega-panel{display:grid;}
  .pk-burger{display:flex;}
  .pk-layout{grid-template-columns:minmax(0,1fr);gap:40px;}
  .pk-aside{position:static;flex-direction:row;flex-wrap:wrap;}
  .pk-aside > *{flex:1 1 280px;}
  .pk-cards{grid-template-columns:repeat(2,1fr);}
  .pk-article-hero h1{font-size:30px;}
  .pk-main{padding:40px 0 64px;}
  .pk-article-body{padding-left:20px;}
  .pk-section{padding:56px 0;}
  .pk-section-head h2{font-size:24px;}
}
@media screen and (max-width:639px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .pk-article-hero h1{font-size:26px;}
  .pk-meta{gap:8px;font-size:12.5px;}
  .pk-article-body{border-left:0;padding-left:0;}
  .pk-article-body h2{font-size:21px;margin-top:34px;}
  .pk-article-body h3{font-size:17.5px;}
  .pk-postnav{grid-template-columns:1fr;}
  .pk-cards{grid-template-columns:1fr;}
  .pk-aside{flex-direction:column;}
  .pk-cta-inner h2{font-size:22px;}
  .pk-cta-inner{padding:0;}
  .pk-footer{padding-top:48px;}
  .pk-footer-bottom{flex-direction:column;align-items:flex-start;}
  .pk-totop{right:16px;bottom:16px;}
  .pk-crumb li.current{max-width:200px;}
}

/* roulang page: category1 */
:root{
  --pk-green-900:#0B3B2E;
  --pk-green-700:#14654B;
  --pk-green-050:#E8F1EC;
  --pk-amber-500:#D8A02C;
  --pk-amber-700:#A87715;
  --pk-clay-600:#B4492F;
  --pk-paper:#F7F4EC;
  --pk-surface:#FFFFFF;
  --pk-ink-900:#14201B;
  --pk-ink-600:#4A5A53;
  --pk-ink-400:#7C8B84;
  --pk-line:rgba(11,59,46,.12);
  --pk-line-strong:rgba(11,59,46,.22);
  --sh-1:0 1px 2px rgba(11,59,46,.06);
  --sh-2:0 8px 24px rgba(11,59,46,.10);
  --sh-3:0 20px 48px rgba(11,59,46,.16);
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
  --r-input:10px;
  --pk-max:1240px;
}

*,*::before,*::after{box-sizing:border-box;}

html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}

body{
  margin:0;
  padding:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--pk-ink-600);
  background-color:var(--pk-paper);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

h1,h2,h3,h4,h5{
  margin:0;
  font-family:inherit;
  color:var(--pk-ink-900);
  letter-spacing:.01em;
  line-height:1.3;
}

p{margin:0 0 16px;}
p:last-child{margin-bottom:0;}

ul,ol{margin:0;padding:0;list-style:none;}

a{
  color:var(--pk-green-700);
  text-decoration:none;
  transition:color .16s ease,background-color .16s ease,border-color .16s ease,box-shadow .16s ease;
}
a:hover{color:var(--pk-amber-700);}
a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
summary:focus-visible{
  outline:2px solid var(--pk-green-700);
  outline-offset:2px;
  border-radius:4px;
}

img{max-width:100%;height:auto;display:block;border:0;}

button{
  font-family:inherit;
  font-size:inherit;
  border:0;
  background:none;
  cursor:pointer;
  color:inherit;
}

.grid-container{
  max-width:var(--pk-max);
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}

.pk-grid{
  display:flex;
  flex-wrap:wrap;
  margin-left:-12px;
  margin-right:-12px;
  row-gap:24px;
}
.pk-grid > .cell{
  padding-left:12px;
  padding-right:12px;
}

/* ============ 通用组件 ============ */
.pk-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 22px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .16s ease,box-shadow .16s ease,background-color .16s ease,color .16s ease,border-color .16s ease;
}
.pk-btn:active{transform:translateY(1px);}
.pk-btn-primary{
  background-color:var(--pk-green-900);
  color:#fff;
  box-shadow:var(--sh-1);
}
.pk-btn-primary:hover{
  background-color:var(--pk-green-700);
  color:#fff;
  box-shadow:var(--sh-2);
  transform:translateY(-2px);
}
.pk-btn-outline{
  background-color:transparent;
  color:var(--pk-green-900);
  border-color:var(--pk-line-strong);
}
.pk-btn-outline:hover{
  border-color:var(--pk-green-700);
  color:var(--pk-green-700);
  background-color:var(--pk-green-050);
  transform:translateY(-2px);
}
.pk-btn-amber{
  background-color:var(--pk-amber-500);
  color:#3A2803;
}
.pk-btn-amber:hover{
  background-color:var(--pk-amber-700);
  color:#fff;
  box-shadow:var(--sh-2);
  transform:translateY(-2px);
}
.pk-btn-ghost{
  background-color:transparent;
  border-color:rgba(255,255,255,.28);
  color:rgba(255,255,255,.85);
}
.pk-btn-ghost:hover{
  border-color:var(--pk-amber-500);
  color:var(--pk-amber-500);
}
.pk-btn-sm{padding:8px 16px;font-size:13px;border-radius:10px;}

.pk-tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:999px;
  font-size:12.5px;
  font-weight:600;
  line-height:1.5;
  background-color:var(--pk-green-050);
  color:var(--pk-green-700);
  border:1px solid rgba(20,101,75,.14);
  white-space:nowrap;
}
.pk-tag-amber{
  background-color:rgba(216,160,44,.14);
  color:var(--pk-amber-700);
  border-color:rgba(168,119,21,.2);
}

.pk-sec-head{margin-bottom:32px;}
.pk-sec-head .pk-eyebrow{
  display:block;
  width:32px;
  height:4px;
  border-radius:2px;
  background-color:var(--pk-amber-500);
  margin-bottom:16px;
}
.pk-sec-head h2{
  font-size:32px;
  font-weight:700;
  margin-bottom:12px;
}
.pk-sec-head p{
  max-width:760px;
  color:var(--pk-ink-600);
  font-size:15.5px;
}

.pk-section{padding:96px 0;}
.pk-section-tint{background-color:var(--pk-green-050);}

/* ============ 顶部导航 ============ */
.pk-header{
  position:sticky;
  top:0;
  z-index:60;
  background-color:rgba(247,244,236,.94);
  backdrop-filter:saturate(140%) blur(6px);
  border-bottom:1px solid transparent;
  transition:background-color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pk-header.is-stuck{
  background-color:#fff;
  border-bottom-color:var(--pk-line);
  box-shadow:var(--sh-1);
}
.pk-nav{
  display:flex;
  align-items:center;
  gap:24px;
  min-height:72px;
}
.pk-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.pk-logo-mark{
  position:relative;
  width:34px;
  height:34px;
  border-radius:50%;
  background:radial-gradient(circle at 32% 28%,#1B7A5B,var(--pk-green-900) 72%);
  box-shadow:inset 0 0 0 2px rgba(216,160,44,.55),var(--sh-1);
  flex:0 0 auto;
}
.pk-logo-mark::after{
  content:"";
  position:absolute;
  inset:8px;
  border-radius:50%;
  border:1.5px dashed rgba(216,160,44,.7);
}
.pk-logo-text{display:flex;flex-direction:column;line-height:1.15;}
.pk-logo-text b{
  font-size:17px;
  font-weight:800;
  color:var(--pk-green-900);
  letter-spacing:.01em;
  white-space:nowrap;
}
.pk-logo-text span{
  font-size:11.5px;
  font-weight:600;
  letter-spacing:.16em;
  color:var(--pk-ink-400);
}

.pk-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.pk-menu > li{position:relative;}
.pk-menu > li > a,
.pk-mega-trigger{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:10px 14px;
  border-radius:10px;
  font-size:14.5px;
  font-weight:600;
  color:var(--pk-ink-600);
  position:relative;
}
.pk-menu > li > a::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:2px;
  border-radius:2px;
  background-color:transparent;
  transition:background-color .16s ease;
}
.pk-menu > li > a:hover,
.pk-mega-trigger:hover{
  color:var(--pk-green-700);
  background-color:rgba(20,101,75,.06);
}
.pk-menu > li > a:hover::after{background-color:rgba(216,160,44,.6);}
.pk-menu > li > a.active{
  color:var(--pk-green-900);
}
.pk-menu > li > a.active::after{background-color:var(--pk-amber-500);}

.pk-mega-trigger i{font-size:11px;transition:transform .16s ease;}
.pk-mega.open .pk-mega-trigger i,
.pk-mega:hover .pk-mega-trigger i{transform:rotate(180deg);}

.pk-mega-panel{
  position:absolute;
  top:calc(100% + 14px);
  right:-40px;
  width:760px;
  background-color:#fff;
  border-radius:18px;
  box-shadow:var(--sh-3);
  padding:24px;
  display:grid;
  grid-template-columns:1fr 1.35fr 1fr;
  gap:24px;
  opacity:0;
  visibility:hidden;
  transform:translateY(6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
  border-top:3px solid var(--pk-green-900);
  z-index:70;
}
.pk-mega.open .pk-mega-panel{
  opacity:1;
  visibility:visible;
  transform:translateY(0);
}
.pk-mega-col h4{
  font-size:12px;
  letter-spacing:.06em;
  color:var(--pk-ink-400);
  font-weight:700;
  margin-bottom:12px;
}
.pk-mega-col ul li a{
  display:block;
  padding:7px 10px;
  margin-left:-10px;
  border-radius:8px;
  font-size:14px;
  font-weight:600;
  color:var(--pk-ink-600);
}
.pk-mega-col ul li a:hover{
  background-color:var(--pk-green-050);
  color:var(--pk-green-700);
}
.pk-mega-mini{
  display:flex;
  gap:10px;
  align-items:center;
  padding:8px;
  border-radius:12px;
  margin-bottom:6px;
}
.pk-mega-mini:hover{background-color:var(--pk-green-050);}
.pk-mega-mini img{
  width:56px;
  height:42px;
  object-fit:cover;
  border-radius:8px;
  flex:0 0 auto;
}
.pk-mega-mini span{display:flex;flex-direction:column;line-height:1.4;}
.pk-mega-mini b{font-size:13.5px;color:var(--pk-ink-900);}
.pk-mega-mini span span{font-size:12px;color:var(--pk-ink-400);}
.pk-mega-mini:hover b{color:var(--pk-green-700);}

.pk-mega-card{
  background-color:var(--pk-green-050);
  border:1px solid rgba(20,101,75,.14);
  border-radius:14px;
  padding:16px;
}
.pk-mega-card b{
  display:block;
  font-size:14.5px;
  color:var(--pk-ink-900);
  margin-bottom:8px;
}
.pk-mega-card p{font-size:12.8px;line-height:1.7;color:var(--pk-ink-600);margin-bottom:12px;}

.pk-burger{
  display:none;
  margin-left:auto;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid var(--pk-line);
  background-color:#fff;
  color:var(--pk-green-900);
  font-size:17px;
  align-items:center;
  justify-content:center;
}

/* ============ 面包屑 ============ */
.pk-crumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--pk-ink-400);
  margin-bottom:16px;
  flex-wrap:wrap;
}
.pk-crumb a{color:var(--pk-ink-600);font-weight:600;}
.pk-crumb a:hover{color:var(--pk-green-700);}
.pk-crumb i{font-size:10px;color:var(--pk-ink-400);}
.pk-crumb span{color:var(--pk-ink-400);}

/* ============ 分类页 Hero ============ */
.pk-page-hero{
  position:relative;
  min-height:280px;
  display:flex;
  align-items:center;
  padding:40px 0;
  background-color:var(--pk-green-900);
  background-image:
    linear-gradient(105deg,rgba(11,59,46,.96) 0%,rgba(11,59,46,.88) 52%,rgba(11,59,46,.72) 100%),
    url("/assets/images/backpic/back-3.png");
  background-size:cover;
  background-position:center;
  color:rgba(255,255,255,.82);
  overflow:hidden;
}
.pk-page-hero::after{
  content:"";
  position:absolute;
  right:-60px;
  top:-40px;
  width:260px;
  height:260px;
  border-radius:50%;
  border:22px solid rgba(216,160,44,.08);
  pointer-events:none;
}
.pk-page-hero .pk-crumb,
.pk-page-hero .pk-crumb a,
.pk-page-hero .pk-crumb span,
.pk-page-hero .pk-crumb i{color:rgba(255,255,255,.66);}
.pk-page-hero .pk-crumb a:hover{color:var(--pk-amber-500);}
.pk-hero-inner{position:relative;z-index:2;max-width:860px;}
.pk-hero-title{
  font-size:40px;
  font-weight:800;
  color:#fff;
  line-height:1.24;
  margin-bottom:14px;
}
.pk-hero-title em{
  font-style:normal;
  color:var(--pk-amber-500);
}
.pk-hero-sub{
  font-size:16px;
  color:rgba(255,255,255,.78);
  margin-bottom:20px;
  max-width:720px;
}
.pk-hero-tags{display:flex;flex-wrap:wrap;gap:8px;}
.pk-hero-tags .pk-tag{
  background-color:rgba(255,255,255,.1);
  border-color:rgba(255,255,255,.18);
  color:rgba(255,255,255,.86);
}
.pk-hero-tags .pk-tag:hover{
  background-color:rgba(216,160,44,.2);
  border-color:rgba(216,160,44,.5);
  color:#fff;
}

/* ============ 规则页主区 ============ */
.pk-rule-side{
  position:sticky;
  top:96px;
  background-color:#fff;
  border:1px solid var(--pk-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:22px;
}
.pk-rule-side h3{
  font-size:15px;
  font-weight:700;
  margin-bottom:4px;
}
.pk-rule-side .pk-side-hint{
  font-size:12.8px;
  color:var(--pk-ink-400);
  margin-bottom:16px;
}
.pk-side-nav li a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:9px 10px;
  margin-left:-10px;
  border-radius:10px;
  font-size:14px;
  font-weight:600;
  color:var(--pk-ink-600);
  border-left:2px solid transparent;
}
.pk-side-nav li a span.pk-idx{
  font-size:12px;
  font-weight:700;
  color:var(--pk-amber-700);
  font-variant-numeric:tabular-nums;
  min-width:20px;
}
.pk-side-nav li a:hover{
  background-color:var(--pk-green-050);
  color:var(--pk-green-700);
}
.pk-side-nav li a.current{
  background-color:var(--pk-green-050);
  color:var(--pk-green-900);
  border-left-color:var(--pk-amber-500);
}
.pk-side-foot{
  margin-top:18px;
  padding-top:18px;
  border-top:1px dashed var(--pk-line-strong);
}
.pk-side-foot p{font-size:12.8px;color:var(--pk-ink-400);margin-bottom:12px;}

.pk-rule-card{
  background-color:#fff;
  border:1px solid var(--pk-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:26px 26px 22px;
  margin-bottom:20px;
  scroll-margin-top:100px;
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.pk-rule-card:hover{
  box-shadow:var(--sh-2);
  transform:translateY(-2px);
  border-color:var(--pk-line-strong);
}
.pk-rule-top{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:12px;
}
.pk-rule-num{
  font-size:13px;
  font-weight:700;
  color:var(--pk-amber-700);
  font-variant-numeric:tabular-nums;
  letter-spacing:.06em;
  padding:3px 10px;
  border-radius:8px;
  background-color:rgba(216,160,44,.12);
}
.pk-rule-card h3{
  font-size:19px;
  font-weight:600;
  margin-bottom:12px;
}
.pk-rule-card p{font-size:15px;line-height:1.8;}
.pk-rule-list{margin:14px 0 16px;}
.pk-rule-list li{
  position:relative;
  padding-left:20px;
  font-size:14.5px;
  line-height:1.9;
  color:var(--pk-ink-600);
}
.pk-rule-list li::before{
  content:"";
  position:absolute;
  left:2px;
  top:12px;
  width:6px;
  height:6px;
  border-radius:2px;
  background-color:var(--pk-amber-500);
  transform:rotate(45deg);
}
.pk-rule-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}

/* ============ 术语速查 ============ */
.pk-glossary{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:28px;
}
.pk-term{
  padding:10px 16px;
  border-radius:12px;
  background-color:#fff;
  border:1px solid var(--pk-line);
  box-shadow:var(--sh-1);
  font-size:14px;
  font-weight:600;
  color:var(--pk-ink-900);
  transition:transform .16s ease,box-shadow .16s ease,border-color .16s ease,color .16s ease;
}
.pk-term span{
  display:block;
  font-size:12px;
  font-weight:400;
  color:var(--pk-ink-400);
  margin-top:2px;
}
.pk-term:hover{
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
  border-color:var(--pk-green-700);
  color:var(--pk-green-700);
}
.pk-glossary-note{
  background-color:#fff;
  border:1px solid var(--pk-line);
  border-left:4px solid var(--pk-green-700);
  border-radius:var(--r-card);
  padding:20px 22px;
  font-size:14.5px;
  color:var(--pk-ink-600);
}

/* ============ 理解偏差对照 ============ */
.pk-myth-card{
  height:100%;
  background-color:#fff;
  border:1px solid var(--pk-line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-1);
  padding:24px;
  transition:box-shadow .18s ease,transform .18s ease;
}
.pk-myth-card:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.pk-myth-card h3{
  font-size:16px;
  font-weight:600;
  margin-bottom:14px;
  display:flex;
  align-items:flex-start;
  gap:10px;
}
.pk-myth-card h3 i{
  color:var(--pk-clay-600);
  font-size:13px;
  margin-top:5px;
}
.pk-myth-card .pk-myth-fix{
  border-top:1px dashed var(--pk-line-strong);
  padding-top:14px;
  margin-top:14px;
  font-size:14.5px;
  line-height:1.85;
}
.pk-myth-card .pk-myth-fix b{
  color:var(--pk-green-700);
  display:inline-block;
  margin-right:6px;
}

/* ============ CTA ============ */
.pk-cta{
  background-color:var(--pk-green-900);
  background-image:linear-gradient(120deg,rgba(11,59,46,.98),rgba(20,101,75,.92));
  border-radius:0;
  padding:72px 0;
  position:relative;
  overflow:hidden;
}
.pk-cta::after{
  content:"";
  position:absolute;
  left:-50px;
  bottom:-70px;
  width:220px;
  height:220px;
  border-radius:50%;
  border:20px solid rgba(216,160,44,.08);
}
.pk-cta-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  flex-wrap:wrap;
}
.pk-cta h2{
  color:#fff;
  font-size:28px;
  font-weight:700;
  margin-bottom:10px;
}
.pk-cta p{
  color:rgba(255,255,255,.76);
  font-size:15px;
  max-width:640px;
  margin:0;
}
.pk-cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.pk-footer{
  background-color:var(--pk-green-900);
  color:rgba(255,255,255,.72);
  padding:72px 0 28px;
  font-size:14px;
}
.pk-footer h4{
  color:#fff;
  font-size:14px;
  font-weight:700;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.pk-footer a{color:rgba(255,255,255,.72);}
.pk-footer a:hover{color:var(--pk-amber-500);}
.pk-footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:16px;
}
.pk-footer-brand b{color:#fff;font-size:17px;font-weight:800;}
.pk-footer p{font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.66);}
.pk-footer ul li{margin-bottom:9px;font-size:13.8px;}
.pk-footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:9px;
  color:rgba(255,255,255,.7);
}
.pk-footer-contact i{color:var(--pk-amber-500);margin-top:5px;font-size:12px;}

.pk-disclaimer{
  margin-top:40px;
  padding:18px 20px;
  border-radius:14px;
  background-color:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);
  font-size:12.8px;
  line-height:1.85;
  color:rgba(255,255,255,.6);
}
.pk-footer-bottom{
  margin-top:22px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:12.8px;
  color:rgba(255,255,255,.55);
}

/* ============ 返回顶部 ============ */
.pk-top{
  position:fixed;
  right:22px;
  bottom:22px;
  width:46px;
  height:46px;
  border-radius:14px;
  background-color:var(--pk-green-900);
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  box-shadow:var(--sh-2);
  opacity:0;
  visibility:hidden;
  transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease,background-color .2s ease;
  z-index:80;
}
.pk-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.pk-top:hover{background-color:var(--pk-green-700);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .pk-mega-panel{width:700px;right:-20px;}
}

@media (max-width:1023px){
  .pk-section{padding:64px 0;}
  .pk-sec-head h2{font-size:26px;}
  .pk-hero-title{font-size:30px;}
  .pk-page-hero{min-height:240px;padding:32px 0;}

  .pk-burger{display:inline-flex;}
  .pk-menu{
    position:fixed;
    top:72px;
    left:0;
    right:0;
    bottom:0;
    background-color:#fff;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:16px 20px 40px;
    margin-left:0;
    overflow-y:auto;
    box-shadow:var(--sh-3);
    transform:translateX(-101%);
    transition:transform .22s ease;
    z-index:65;
  }
  body.pk-nav-open .pk-menu{transform:translateX(0);}
  .pk-menu > li{border-bottom:1px solid var(--pk-line);}
  .pk-menu > li > a,
  .pk-mega-trigger{
    width:100%;
    justify-content:space-between;
    padding:15px 4px;
    border-radius:0;
    font-size:15.5px;
  }
  .pk-menu > li > a::after{display:none;}
  .pk-menu > li > a.active{color:var(--pk-green-900);}
  .pk-menu > li > a.active::before{
    content:"";
    display:inline-block;
    width:4px;
    height:16px;
    border-radius:2px;
    background-color:var(--pk-amber-500);
    margin-right:10px;
  }
  .pk-mega-panel{
    position:static;
    width:auto;
    right:auto;
    opacity:1;
    visibility:visible;
    transform:none;
    box-shadow:none;
    border-top:0;
    border-radius:0;
    padding:0 0 16px;
    display:none;
    grid-template-columns:1fr;
    gap:18px;
  }
  .pk-mega.open .pk-mega-panel{display:grid;}
  .pk-mega-mini img{width:52px;height:40px;}

  .pk-rule-side{position:static;top:auto;margin-bottom:8px;}
  .pk-cta{padding:56px 0;}
  .pk-cta h2{font-size:23px;}
  .pk-footer{padding:56px 0 24px;}
}

@media (max-width:639px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .pk-grid{margin-left:-8px;margin-right:-8px;row-gap:16px;}
  .pk-grid > .cell{padding-left:8px;padding-right:8px;}

  .pk-section{padding:56px 0;}
  .pk-sec-head h2{font-size:22px;}
  .pk-sec-head p{font-size:14.5px;}
  .pk-hero-title{font-size:24px;}
  .pk-hero-sub{font-size:14.5px;}
  .pk-page-hero{min-height:220px;}

  .pk-logo-text b{font-size:15.5px;}
  .pk-logo-text span{font-size:10.5px;letter-spacing:.1em;}

  .pk-rule-card{padding:20px 18px 18px;}
  .pk-rule-card h3{font-size:17px;}
  .pk-rule-top{flex-wrap:wrap;gap:8px;}
  .pk-myth-card{padding:18px;}
  .pk-cta-inner{flex-direction:column;align-items:flex-start;gap:20px;}
  .pk-cta-actions{width:100%;}
  .pk-cta-actions .pk-btn{width:100%;}
  .pk-footer-bottom{flex-direction:column;align-items:flex-start;}
  .pk-top{right:16px;bottom:16px;width:42px;height:42px;}
}

@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category2 */
:root{
  --pk-green-900:#0B3B2E;
  --pk-green-700:#14654B;
  --pk-green-050:#E8F1EC;
  --pk-amber-500:#D8A02C;
  --pk-amber-700:#A87715;
  --pk-clay-600:#B4492F;
  --pk-paper:#F7F4EC;
  --pk-surface:#FFFFFF;
  --pk-ink-900:#14201B;
  --pk-ink-600:#4A5A53;
  --pk-ink-400:#7C8B84;
  --pk-line:rgba(11,59,46,.12);
  --pk-line-strong:rgba(11,59,46,.22);
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
  --r-pill:999px;
  --r-input:10px;
  --sh-1:0 1px 2px rgba(11,59,46,.06);
  --sh-2:0 8px 24px rgba(11,59,46,.10);
  --sh-3:0 20px 48px rgba(11,59,46,.16);
  --font-cn:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
}

/* ---------- reset ---------- */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  color:var(--pk-ink-600);
  background:var(--pk-paper);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;border:0;}
a{color:var(--pk-green-700);text-decoration:none;transition:color .16s ease,opacity .16s ease;}
a:hover{color:var(--pk-green-900);}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea,select{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--pk-green-700);outline-offset:2px;border-radius:4px;}
.pk-num{font-variant-numeric:tabular-nums;font-weight:600;}

/* ---------- foundation 覆盖 ---------- */
.grid-container{max-width:1240px;padding-left:24px;padding-right:24px;}
.grid-x{--xy-gutter:24px;}
.pk-section{padding:96px 0;}
.pk-section--tight{padding:64px 0;}
.pk-section--soft{background:var(--pk-green-050);}
.pk-section--paper{background:var(--pk-paper);}
.pk-section--surface{background:var(--pk-surface);}

/* ---------- 头部导航 ---------- */
.pk-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(247,244,236,.92);
  backdrop-filter:blur(8px);
  border-bottom:1px solid transparent;
  transition:background .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pk-header.is-scrolled{
  background:#fff;
  border-bottom-color:var(--pk-line);
  box-shadow:var(--sh-1);
}
.pk-nav{display:flex;align-items:center;gap:24px;height:78px;position:relative;}
.pk-logo{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--pk-ink-900);}
.pk-logo:hover{color:var(--pk-green-900);}
.pk-logo-mark{
  width:38px;height:38px;border-radius:11px;
  background:linear-gradient(135deg,var(--pk-green-900),var(--pk-green-700));
  position:relative;flex:0 0 auto;
  box-shadow:inset 0 0 0 2px rgba(216,160,44,.55);
}
.pk-logo-mark::before{
  content:"";position:absolute;inset:9px;border-radius:50%;
  border:2px dashed rgba(255,255,255,.65);
}
.pk-logo-mark::after{
  content:"";position:absolute;width:8px;height:8px;border-radius:50%;
  background:var(--pk-amber-500);top:50%;left:50%;transform:translate(-50%,-50%);
}
.pk-logo-text{display:flex;flex-direction:column;line-height:1.15;}
.pk-logo-text b{font-size:17px;font-weight:800;letter-spacing:.01em;white-space:nowrap;}
.pk-logo-text span{font-size:11px;color:var(--pk-ink-400);letter-spacing:.16em;}

.pk-menu{display:flex;align-items:center;gap:4px;margin-left:auto;}
.pk-menu > li{position:relative;}
.pk-menu > li > a,
.pk-mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 14px;border-radius:10px;
  font-size:15px;font-weight:600;color:var(--pk-ink-600);
  position:relative;transition:color .16s ease,background .16s ease;
}
.pk-menu > li > a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:4px;height:2px;border-radius:2px;
  background:var(--pk-amber-500);transform:scaleX(0);transform-origin:left;transition:transform .16s ease;
}
.pk-menu > li > a:hover,
.pk-mega-trigger:hover{color:var(--pk-green-900);background:rgba(11,59,46,.05);}
.pk-menu > li > a:hover::after{transform:scaleX(1);}
.pk-menu > li > a.active{color:var(--pk-green-900);}
.pk-menu > li > a.active::after{transform:scaleX(1);}

.pk-mega-trigger i{font-size:10px;transition:transform .16s ease;color:var(--pk-ink-400);}
.pk-mega.is-open .pk-mega-trigger{color:var(--pk-green-900);background:rgba(11,59,46,.06);}
.pk-mega.is-open .pk-mega-trigger i{transform:rotate(180deg);}

.pk-mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:760px;
  background:#fff;border-radius:18px;box-shadow:var(--sh-3);
  padding:26px 26px 24px;display:grid;grid-template-columns:1fr 1.2fr 1fr;gap:22px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
  border-top:3px solid var(--pk-green-900);z-index:90;
}
.pk-mega.is-open .pk-mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.pk-mega-col h4{
  font-size:12px;letter-spacing:.06em;color:var(--pk-ink-400);
  font-weight:700;margin-bottom:12px;text-transform:uppercase;
}
.pk-mega-col ul li a{
  display:block;padding:7px 0;font-size:14px;color:var(--pk-ink-600);
}
.pk-mega-col ul li a:hover{color:var(--pk-green-900);padding-left:4px;}
.pk-mega-mini{display:flex;gap:10px;align-items:center;padding:8px;border-radius:12px;transition:background .16s ease;}
.pk-mega-mini:hover{background:var(--pk-green-050);}
.pk-mega-mini img{width:52px;height:40px;object-fit:cover;border-radius:8px;flex:0 0 auto;}
.pk-mega-mini span{display:flex;flex-direction:column;line-height:1.35;}
.pk-mega-mini b{font-size:13.5px;color:var(--pk-ink-900);font-weight:600;}
.pk-mega-mini span span{font-size:12px;color:var(--pk-ink-400);}
.pk-mega-card{
  background:var(--pk-green-050);border-radius:14px;padding:16px;
  display:flex;flex-direction:column;gap:10px;
}
.pk-mega-card b{color:var(--pk-green-900);font-size:15px;}
.pk-mega-card p{font-size:13px;color:var(--pk-ink-600);line-height:1.6;}

.pk-nav-cta{margin-left:12px;flex:0 0 auto;}
.pk-burger{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--pk-line-strong);color:var(--pk-green-900);
  align-items:center;justify-content:center;font-size:17px;margin-left:auto;
}
.pk-scrim{
  position:fixed;inset:0;background:rgba(11,20,16,.45);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;z-index:70;
}
.pk-scrim.is-on{opacity:1;visibility:visible;}

/* ---------- 按钮 ---------- */
.pk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:all .16s ease;white-space:nowrap;line-height:1.2;
}
.pk-btn-primary{background:var(--pk-green-900);color:#fff;box-shadow:var(--sh-1);}
.pk-btn-primary:hover{background:var(--pk-green-700);color:#fff;box-shadow:var(--sh-2);transform:translateY(-2px);}
.pk-btn-primary:active{transform:translateY(0);}
.pk-btn-outline{border-color:var(--pk-green-700);color:var(--pk-green-700);background:transparent;}
.pk-btn-outline:hover{background:var(--pk-green-050);color:var(--pk-green-900);transform:translateY(-2px);}
.pk-btn-amber{background:var(--pk-amber-500);color:#3A2A05;}
.pk-btn-amber:hover{background:var(--pk-amber-700);color:#fff;transform:translateY(-2px);}
.pk-btn-ghost{border-color:var(--pk-line-strong);color:var(--pk-ink-600);background:#fff;}
.pk-btn-ghost:hover{border-color:var(--pk-green-700);color:var(--pk-green-900);}
.pk-btn-sm{padding:9px 16px;font-size:13.5px;border-radius:10px;}

/* ---------- 通用元素 ---------- */
.pk-badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);
  background:var(--pk-green-050);color:var(--pk-green-900);
  font-size:12.5px;font-weight:600;letter-spacing:.02em;
}
.pk-badge-amber{background:rgba(216,160,44,.16);color:var(--pk-amber-700);}
.pk-eyebrow{
  display:flex;align-items:center;gap:10px;
  font-size:12.5px;font-weight:700;letter-spacing:.08em;color:var(--pk-amber-700);
  margin-bottom:14px;
}
.pk-eyebrow::before{content:"";width:32px;height:4px;border-radius:2px;background:var(--pk-amber-500);}
.pk-h2{font-size:32px;line-height:1.3;font-weight:700;color:var(--pk-ink-900);letter-spacing:-.01em;}
.pk-lead{font-size:16px;color:var(--pk-ink-600);max-width:760px;margin-top:14px;}
.pk-sec-head{margin-bottom:48px;}
.pk-sec-head--center{text-align:center;}
.pk-sec-head--center .pk-eyebrow{justify-content:center;}
.pk-sec-head--center .pk-lead{margin-left:auto;margin-right:auto;}
.pk-textlink{display:inline-flex;align-items:center;gap:8px;font-weight:600;font-size:14.5px;color:var(--pk-green-700);}
.pk-textlink i{transition:transform .16s ease;font-size:12px;}
.pk-textlink:hover i{transform:translateX(4px);}

/* ---------- 面包屑 ---------- */
.pk-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;}
.pk-crumb a{color:rgba(255,255,255,.78);}
.pk-crumb a:hover{color:var(--pk-amber-500);}
.pk-crumb span.sep{color:rgba(255,255,255,.4);}
.pk-crumb span.now{color:rgba(255,255,255,.6);}

/* ---------- 分类 Hero（分类页2 高度 340） ---------- */
.pk-cat-hero{
  position:relative;overflow:hidden;background:var(--pk-green-900);color:#fff;
  display:flex;align-items:center;
}
.pk-cat-hero--2{min-height:340px;padding:48px 0;}
.pk-cat-hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.24;
}
.pk-cat-hero::after{
  content:"";position:absolute;right:-140px;bottom:-160px;width:460px;height:460px;border-radius:50%;
  border:52px solid rgba(216,160,44,.08);pointer-events:none;
}
.pk-cat-hero::before{
  content:"";position:absolute;left:-120px;top:-140px;width:360px;height:360px;border-radius:50%;
  border:40px solid rgba(255,255,255,.05);pointer-events:none;
}
.pk-cat-hero .grid-container{position:relative;z-index:3;}
.pk-cat-hero h1{
  font-size:44px;line-height:1.2;font-weight:800;letter-spacing:-.015em;
  margin:18px 0 14px;max-width:820px;color:#fff;
}
.pk-cat-hero p{font-size:16.5px;line-height:1.75;color:rgba(255,255,255,.82);max-width:680px;}
.pk-hero-facts{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.pk-hero-fact{
  display:flex;align-items:center;gap:9px;padding:9px 15px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.09);border:1px solid rgba(255,255,255,.16);
  font-size:13px;color:rgba(255,255,255,.9);
}
.pk-hero-fact i{color:var(--pk-amber-500);font-size:12px;}

/* ---------- 筛选胶囊 ---------- */
.pk-filter-bar{
  background:#fff;border-bottom:1px solid var(--pk-line);
  padding:16px 0;position:sticky;top:78px;z-index:50;
}
.pk-filters{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.pk-filters .pk-filter-label{font-size:13px;color:var(--pk-ink-400);font-weight:600;margin-right:6px;}
.pk-filter{
  padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--pk-line-strong);background:#fff;
  font-size:14px;font-weight:600;color:var(--pk-ink-600);
  transition:all .16s ease;
}
.pk-filter:hover{border-color:var(--pk-green-700);color:var(--pk-green-900);}
.pk-filter.is-active{background:var(--pk-green-900);border-color:var(--pk-green-900);color:#fff;box-shadow:var(--sh-1);}

/* ---------- 数据带 ---------- */
.pk-stat-band{
  background:var(--pk-green-050);border-top:1px solid var(--pk-line);border-bottom:1px solid var(--pk-line);
  padding:44px 0;
}
.pk-stat-grid{display:grid;grid-template-columns:repeat(4,1fr);}
.pk-stat{padding:0 24px;border-left:1px solid var(--pk-line-strong);}
.pk-stat:first-child{border-left:0;padding-left:0;}
.pk-stat b{display:block;font-size:42px;line-height:1.1;color:var(--pk-green-900);font-weight:600;font-variant-numeric:tabular-nums;}
.pk-stat b small{font-size:18px;font-weight:600;margin-left:4px;}
.pk-stat span{display:block;margin-top:8px;font-size:13px;color:var(--pk-ink-400);}

/* ---------- 大图卡 ---------- */
.pk-bigcards{display:grid;grid-template-columns:repeat(2,1fr);gap:32px;}
.pk-bigcard{
  background:#fff;border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--sh-1);display:flex;flex-direction:column;
  border:1px solid var(--pk-line);
  transition:box-shadow .2s ease,transform .2s ease;
}
.pk-bigcard:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.pk-bigcard.is-hidden{display:none;}
.pk-bigcard-media{position:relative;display:block;aspect-ratio:16/10;overflow:hidden;background:rgba(11,59,46,.08);}
.pk-bigcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease;}
.pk-bigcard:hover .pk-bigcard-media img{transform:scale(1.03);}
.pk-bigcard-tag{
  position:absolute;left:18px;top:18px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(255,255,255,.94);color:var(--pk-green-900);
  font-size:12.5px;font-weight:700;letter-spacing:.02em;box-shadow:var(--sh-1);
}
.pk-bigcard-body{padding:30px 32px 32px;display:flex;flex-direction:column;gap:16px;flex:1;}
.pk-bigcard-body h3{font-size:20px;line-height:1.4;font-weight:600;color:var(--pk-ink-900);}
.pk-bigcard-body > p{font-size:15px;color:var(--pk-ink-600);line-height:1.75;}
.pk-points{display:flex;flex-direction:column;gap:9px;margin-top:2px;}
.pk-points li{position:relative;padding-left:22px;font-size:14px;color:var(--pk-ink-600);line-height:1.7;}
.pk-points li::before{
  content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:2px;
  background:var(--pk-amber-500);transform:rotate(45deg);
}
.pk-bigcard-foot{margin-top:auto;padding-top:6px;display:flex;align-items:center;justify-content:space-between;gap:12px;}
.pk-bigcard-foot .pk-chip{font-size:12.5px;color:var(--pk-ink-400);}
.pk-empty-state{
  text-align:center;padding:56px 24px;background:#fff;border:1px dashed var(--pk-line-strong);border-radius:var(--r-card);
}
.pk-empty-state i{font-size:26px;color:var(--pk-amber-500);}
.pk-empty-state p{margin:14px 0 18px;color:var(--pk-ink-400);font-size:14.5px;}

/* ---------- 图文交错 ---------- */
.pk-split{display:grid;grid-template-columns:1.05fr 1fr;gap:56px;align-items:center;}
.pk-split + .pk-split{margin-top:72px;}
.pk-split-media{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-2);aspect-ratio:4/3;background:rgba(11,59,46,.08);}
.pk-split-media img{width:100%;height:100%;object-fit:cover;}
.pk-split-media::after{
  content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(11,59,46,0) 55%,rgba(11,59,46,.42));
}
.pk-split-body h3{font-size:24px;line-height:1.4;font-weight:700;color:var(--pk-ink-900);margin-bottom:14px;}
.pk-split-body p{font-size:15.5px;line-height:1.8;color:var(--pk-ink-600);margin-bottom:14px;}
.pk-split--rev .pk-split-media{order:2;}
.pk-mini-list{display:flex;flex-direction:column;gap:12px;margin-top:8px;}
.pk-mini-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:var(--pk-ink-600);}
.pk-mini-list i{color:var(--pk-green-700);font-size:13px;margin-top:5px;}
.pk-float-card{
  position:absolute;right:20px;bottom:20px;z-index:4;
  background:rgba(255,255,255,.96);border-radius:14px;padding:14px 18px;box-shadow:var(--sh-2);
  display:flex;flex-direction:column;gap:2px;
}
.pk-float-card b{font-size:24px;color:var(--pk-amber-700);line-height:1.1;font-variant-numeric:tabular-nums;}
.pk-float-card span{font-size:12px;color:var(--pk-ink-400);}

/* ---------- 步骤 ---------- */
.pk-steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.pk-step{
  background:#fff;border:1px solid var(--pk-line);border-radius:var(--r-card);
  padding:28px 26px;box-shadow:var(--sh-1);transition:box-shadow .2s ease,transform .2s ease;
}
.pk-step:hover{box-shadow:var(--sh-2);transform:translateY(-2px);}
.pk-step-num{
  font-size:26px;font-weight:600;color:var(--pk-amber-700);font-variant-numeric:tabular-nums;
  display:block;margin-bottom:14px;letter-spacing:.02em;
}
.pk-step h3{font-size:18px;font-weight:600;color:var(--pk-ink-900);margin-bottom:10px;}
.pk-step p{font-size:14.5px;line-height:1.75;color:var(--pk-ink-600);}
.pk-step-bar{width:36px;height:3px;border-radius:2px;background:var(--pk-green-700);margin-bottom:16px;}

/* ---------- CTA ---------- */
.pk-cta{
  position:relative;background:var(--pk-green-900);color:#fff;border-radius:20px;
  padding:56px 56px;overflow:hidden;
}
.pk-cta::after{
  content:"";position:absolute;right:-100px;top:-120px;width:380px;height:380px;border-radius:50%;
  border:44px solid rgba(216,160,44,.09);
}
.pk-cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:40px;flex-wrap:wrap;}
.pk-cta h2{font-size:28px;line-height:1.35;font-weight:700;color:#fff;max-width:560px;}
.pk-cta p{margin-top:12px;font-size:15px;color:rgba(255,255,255,.78);max-width:560px;}
.pk-cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.pk-footer{background:var(--pk-green-900);color:rgba(255,255,255,.74);padding:72px 0 28px;}
.pk-footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.pk-footer-brand b{color:#fff;font-size:17px;font-weight:800;}
.pk-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);}
.pk-footer h4{font-size:14px;color:#fff;font-weight:700;margin-bottom:16px;letter-spacing:.02em;}
.pk-footer ul li{margin-bottom:10px;}
.pk-footer ul li a{font-size:14px;color:rgba(255,255,255,.68);}
.pk-footer ul li a:hover{color:var(--pk-amber-500);}
.pk-footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14px;color:rgba(255,255,255,.68);}
.pk-footer-contact i{color:var(--pk-amber-500);margin-top:5px;font-size:12px;}
.pk-disclaimer{
  margin-top:48px;padding:20px 22px;border-radius:14px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  font-size:12.5px;line-height:1.8;color:rgba(255,255,255,.6);
}
.pk-footer-bottom{
  margin-top:28px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.55);
}
.pk-top-btn{
  position:fixed;right:24px;bottom:24px;width:48px;height:48px;border-radius:14px;
  background:var(--pk-green-900);color:#fff;box-shadow:var(--sh-2);
  display:flex;align-items:center;justify-content:center;font-size:15px;
  opacity:0;visibility:hidden;transform:translateY(8px);transition:all .2s ease;z-index:60;
}
.pk-top-btn.is-on{opacity:1;visibility:visible;transform:none;}
.pk-top-btn:hover{background:var(--pk-green-700);}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .pk-mega-panel{width:680px;}
  .pk-h2{font-size:29px;}
  .pk-cat-hero h1{font-size:38px;}
}
@media (max-width:1023px){
  .pk-nav{height:70px;}
  .pk-burger{display:inline-flex;}
  .pk-nav-cta{display:none;}
  .pk-menu{
    position:fixed;top:0;right:0;height:100vh;width:min(320px,86vw);
    flex-direction:column;align-items:stretch;gap:2px;
    background:#fff;box-shadow:var(--sh-3);
    padding:86px 22px 32px;margin-left:0;
    transform:translateX(102%);transition:transform .24s ease;overflow-y:auto;z-index:90;
  }
  .pk-menu.is-open{transform:none;}
  .pk-menu > li > a,.pk-mega-trigger{width:100%;justify-content:space-between;font-size:15.5px;padding:13px 12px;}
  .pk-menu > li > a::after{display:none;}
  .pk-mega-panel{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border:0;border-top:0;border-left:3px solid var(--pk-green-050);
    display:none;grid-template-columns:1fr;gap:18px;padding:14px 12px 18px;border-radius:12px;background:#fff;
  }
  .pk-mega.is-open .pk-mega-panel{display:grid;}
  .pk-section{padding:64px 0;}
  .pk-filter-bar{top:70px;}
  .pk-bigcards{grid-template-columns:1fr;gap:24px;}
  .pk-split{grid-template-columns:1fr;gap:28px;}
  .pk-split--rev .pk-split-media{order:0;}
  .pk-split + .pk-split{margin-top:48px;}
  .pk-steps{grid-template-columns:1fr;}
  .pk-stat-grid{grid-template-columns:repeat(2,1fr);row-gap:28px;}
  .pk-stat{border-left:0;padding:0;}
  .pk-stat:nth-child(even){padding-left:24px;border-left:1px solid var(--pk-line-strong);}
  .pk-cta{padding:40px 28px;}
  .pk-cat-hero--2{min-height:0;padding:40px 0 44px;}
  .pk-cat-hero h1{font-size:30px;}
  .pk-footer{padding-top:56px;}
}
@media (max-width:639px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .pk-logo-text b{font-size:15px;}
  .pk-logo-text span{font-size:10px;}
  .pk-h2{font-size:22px;}
  .pk-section{padding:56px 0;}
  .pk-sec-head{margin-bottom:32px;}
  .pk-cat-hero h1{font-size:26px;line-height:1.3;}
  .pk-cat-hero p{font-size:15px;}
  .pk-bigcard-body{padding:22px 20px 24px;}
  .pk-bigcard-body h3{font-size:18px;}
  .pk-stat b{font-size:34px;}
  .pk-cta h2{font-size:22px;}
  .pk-cta-actions{width:100%;}
  .pk-cta-actions .pk-btn{width:100%;}
  .pk-top-btn{right:16px;bottom:16px;}
  .pk-filter{padding:8px 14px;font-size:13px;}
  .pk-split-body h3{font-size:20px;}
}

/* roulang page: category3 */
:root{
  --pk-green-900:#0B3B2E;
  --pk-green-700:#14654B;
  --pk-green-050:#E8F1EC;
  --pk-amber-500:#D8A02C;
  --pk-amber-700:#A87715;
  --pk-clay-600:#B4492F;
  --pk-paper:#F7F4EC;
  --pk-surface:#FFFFFF;
  --pk-ink-900:#14201B;
  --pk-ink-600:#4A5A53;
  --pk-ink-400:#7C8B84;
  --pk-line:rgba(11,59,46,.12);
  --pk-line-strong:rgba(11,59,46,.22);
  --sh-1:0 1px 2px rgba(11,59,46,.06);
  --sh-2:0 8px 24px rgba(11,59,46,.10);
  --sh-3:0 20px 48px rgba(11,59,46,.16);
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background-color:var(--pk-paper);
  color:var(--pk-ink-600);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
body.pk-no-scroll{overflow:hidden;}
h1,h2,h3,h4{margin:0;color:var(--pk-ink-900);font-family:inherit;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--pk-green-700);text-decoration:none;transition:color .16s ease,background-color .16s ease,border-color .16s ease;}
a:hover,a:focus{color:var(--pk-green-900);}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--pk-green-700);outline-offset:2px;}
.grid-container{max-width:1240px;padding-left:24px;padding-right:24px;}
.grid-x{display:flex;flex-wrap:wrap;}
.pk-num{font-variant-numeric:tabular-nums;font-weight:600;}

/* ============ 按钮 ============ */
.pk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 24px;border-radius:var(--r-btn);
  border:1px solid transparent;cursor:pointer;
  transition:background-color .16s ease,color .16s ease,border-color .16s ease,box-shadow .16s ease,transform .16s ease;
  text-align:center;
}
.pk-btn:active{transform:translateY(1px);}
.pk-btn-primary{background:var(--pk-green-900);color:#fff;box-shadow:var(--sh-1);}
.pk-btn-primary:hover,.pk-btn-primary:focus{background:var(--pk-green-700);color:#fff;box-shadow:var(--sh-2);}
.pk-btn-amber{background:var(--pk-amber-500);color:#211803;box-shadow:var(--sh-1);}
.pk-btn-amber:hover,.pk-btn-amber:focus{background:#e2ac36;color:#211803;box-shadow:var(--sh-2);}
.pk-btn-outline{background:transparent;border-color:var(--pk-line-strong);color:var(--pk-green-900);}
.pk-btn-outline:hover,.pk-btn-outline:focus{background:var(--pk-green-050);border-color:var(--pk-green-700);color:var(--pk-green-900);}
.pk-btn-ghost-light{background:transparent;border-color:rgba(255,255,255,.45);color:#fff;}
.pk-btn-ghost-light:hover,.pk-btn-ghost-light:focus{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}
.pk-btn-ghost{border-color:var(--pk-line-strong);background:#fff;color:var(--pk-green-900);}
.pk-btn-ghost:hover{border-color:var(--pk-green-700);color:var(--pk-green-900);}
.pk-btn-sm{padding:10px 18px;font-size:14px;}

/* ============ 顶部导航 ============ */
.pk-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(247,244,236,.92);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid transparent;
  transition:background-color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pk-header.pk-scrolled{background:#fff;box-shadow:var(--sh-1);border-bottom-color:var(--pk-line);}
.pk-nav{display:flex;align-items:center;gap:24px;min-height:74px;position:relative;}
.pk-logo{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:var(--pk-ink-900);}
.pk-logo:hover{color:var(--pk-ink-900);}
.pk-logo-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 34px;
  background:
    radial-gradient(circle at 50% 50%, rgba(255,255,255,.9) 0 22%, transparent 23%),
    conic-gradient(from 0deg, var(--pk-green-900) 0 25%, var(--pk-green-700) 25% 50%, var(--pk-green-900) 50% 75%, var(--pk-green-700) 75% 100%);
  box-shadow:var(--sh-1);
}
.pk-logo-text{display:flex;flex-direction:column;line-height:1.15;}
.pk-logo-text b{font-size:16px;font-weight:800;color:var(--pk-ink-900);letter-spacing:.01em;}
.pk-logo-text span{font-size:11.5px;color:var(--pk-ink-400);letter-spacing:.08em;}
.pk-burger{
  display:none;margin-left:auto;background:#fff;border:1px solid var(--pk-line-strong);
  color:var(--pk-green-900);width:42px;height:42px;border-radius:12px;font-size:16px;cursor:pointer;
  align-items:center;justify-content:center;
}
.pk-nav-collapse{display:flex;align-items:center;gap:20px;flex:1 1 auto;justify-content:flex-end;}
.pk-menu{display:flex;align-items:center;gap:4px;}
.pk-menu > li{position:relative;}
.pk-menu > li > a,.pk-mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 13px;font-size:15px;font-weight:600;color:var(--pk-ink-600);
  background:none;border:0;border-radius:10px;cursor:pointer;position:relative;
}
.pk-menu > li > a::after{
  content:"";position:absolute;left:13px;right:13px;bottom:2px;height:2px;border-radius:2px;
  background:var(--pk-amber-500);transform:scaleX(0);transform-origin:left center;transition:transform .16s ease;
}
.pk-menu > li > a:hover,.pk-mega-trigger:hover{color:var(--pk-green-900);background:var(--pk-green-050);}
.pk-menu > li > a:hover::after,.pk-menu > li > a.active::after{transform:scaleX(1);}
.pk-menu > li > a.active{color:var(--pk-green-900);}
.pk-mega-trigger i{font-size:11px;transition:transform .16s ease;}
.pk-mega.open .pk-mega-trigger i,.pk-mega:hover .pk-mega-trigger i{transform:rotate(180deg);}
.pk-mega-panel{
  position:absolute;top:calc(100% + 14px);right:0;width:760px;
  background:#fff;border-radius:18px;border-top:3px solid var(--pk-green-900);
  box-shadow:var(--sh-3);padding:24px;
  display:grid;grid-template-columns:1fr 1.3fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
  z-index:1001;
}
.pk-mega:hover .pk-mega-panel,.pk-mega:focus-within .pk-mega-panel,.pk-mega.open .pk-mega-panel{
  opacity:1;visibility:visible;transform:translateY(0);
}
.pk-mega-col h4{font-size:12px;letter-spacing:.06em;color:var(--pk-ink-400);font-weight:700;margin-bottom:12px;}
.pk-mega-col ul li{margin-bottom:6px;}
.pk-mega-col ul a{display:block;padding:7px 10px;border-radius:8px;font-size:14.5px;color:var(--pk-ink-600);}
.pk-mega-col ul a:hover{background:var(--pk-green-050);color:var(--pk-green-900);}
.pk-mega-mini{display:flex;gap:10px;align-items:center;padding:8px 10px;border-radius:12px;}
.pk-mega-mini:hover{background:var(--pk-green-050);}
.pk-mega-mini img{width:52px;height:40px;object-fit:cover;border-radius:8px;flex:0 0 52px;}
.pk-mega-mini span{display:flex;flex-direction:column;line-height:1.4;}
.pk-mega-mini b{font-size:14px;color:var(--pk-ink-900);font-weight:600;}
.pk-mega-mini span span{font-size:12.5px;color:var(--pk-ink-400);}
.pk-mega-card{background:var(--pk-green-050);border-radius:14px;padding:16px;}
.pk-mega-card b{display:block;font-size:15px;color:var(--pk-green-900);margin-bottom:6px;}
.pk-mega-card p{font-size:13px;color:var(--pk-ink-600);margin-bottom:12px;line-height:1.6;}
.pk-mega-card a{font-size:13.5px;font-weight:600;}
.pk-nav-cta{flex:0 0 auto;}

/* ============ 分类页 Hero ============ */
.pk-hero-cat{
  position:relative;min-height:300px;display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  color:#fff;overflow:hidden;
}
.pk-hero-cat::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(115deg,rgba(11,59,46,.95) 0%,rgba(11,59,46,.82) 48%,rgba(11,59,46,.58) 100%);
}
.pk-hero-ring{
  position:absolute;right:-70px;bottom:-90px;width:300px;height:300px;border-radius:50%;
  border:34px solid rgba(216,160,44,.3);opacity:.28;z-index:1;
}
.pk-hero-cat .grid-container{position:relative;z-index:2;padding-top:44px;padding-bottom:44px;}
.pk-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:16px;}
.pk-crumb a{color:rgba(255,255,255,.86);}
.pk-crumb a:hover{color:var(--pk-amber-500);}
.pk-crumb i{font-size:10px;color:rgba(255,255,255,.45);}
.pk-hero-cat h1{
  font-size:44px;line-height:1.2;font-weight:800;color:#fff;letter-spacing:.01em;max-width:820px;
}
.pk-hero-cat p.pk-hero-sub{
  margin-top:14px;font-size:17px;line-height:1.7;color:rgba(255,255,255,.82);max-width:720px;
}
.pk-hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px;}
.pk-tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 13px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.24);
}
.pk-tag-ink{background:var(--pk-green-050);color:var(--pk-green-900);border-color:transparent;}

/* ============ 通用板块 ============ */
.pk-section{padding:88px 0;}
.pk-section-sm{padding:64px 0;}
.pk-section-alt{background:var(--pk-surface);border-top:1px solid var(--pk-line);border-bottom:1px solid var(--pk-line);}
.pk-section-head{max-width:760px;margin-bottom:44px;}
.pk-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:700;letter-spacing:.1em;color:var(--pk-amber-700);
  text-transform:uppercase;margin-bottom:12px;
}
.pk-eyebrow::before{content:"";width:32px;height:4px;border-radius:2px;background:var(--pk-amber-500);}
.pk-section-head h2{font-size:32px;line-height:1.3;font-weight:700;margin-bottom:14px;}
.pk-section-head p{font-size:16px;color:var(--pk-ink-600);}

/* ============ 图文交错 ============ */
.pk-zig{padding:72px 0;border-bottom:1px solid var(--pk-line);}
.pk-zig:last-of-type{border-bottom:0;}
.pk-zig .pk-zig-row{display:flex;flex-wrap:wrap;align-items:center;gap:56px;}
.pk-zig-media{flex:1 1 440px;min-width:300px;}
.pk-zig-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-img);
  box-shadow:var(--sh-2);
}
.pk-zig-body{flex:1 1 460px;min-width:300px;}
.pk-zig-body h3{font-size:26px;line-height:1.35;font-weight:700;margin-bottom:14px;}
.pk-zig-body p{font-size:16px;color:var(--pk-ink-600);margin-bottom:14px;}
.pk-zig-row.reverse{flex-direction:row-reverse;}
.pk-checks{margin-top:20px;display:grid;gap:12px;}
.pk-checks li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--pk-ink-600);}
.pk-checks li i{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  background:var(--pk-green-050);color:var(--pk-green-700);
  display:inline-flex;align-items:center;justify-content:center;font-size:11px;margin-top:3px;
}
.pk-note{
  margin-top:20px;padding:16px 18px;border-left:4px solid var(--pk-green-700);
  background:var(--pk-green-050);border-radius:0 12px 12px 0;
  font-size:14.5px;color:var(--pk-green-900);line-height:1.75;
}

/* ============ 对比表 ============ */
.pk-table-wrap{
  overflow-x:auto;background:#fff;border:1px solid var(--pk-line);
  border-radius:var(--r-card);box-shadow:var(--sh-1);
}
table.pk-table{width:100%;border-collapse:collapse;min-width:660px;}
.pk-table caption{
  caption-side:top;text-align:left;padding:20px 22px 6px;
  font-size:14px;color:var(--pk-ink-400);
}
.pk-table thead th{
  background:var(--pk-green-050);color:var(--pk-green-900);
  font-size:14px;font-weight:700;text-align:left;letter-spacing:.02em;
  padding:16px 22px;border-bottom:1px solid var(--pk-line-strong);white-space:nowrap;
}
.pk-table tbody td{
  padding:15px 22px;font-size:14.5px;color:var(--pk-ink-600);
  border-bottom:1px solid var(--pk-line);vertical-align:top;
}
.pk-table tbody td:first-child{font-weight:600;color:var(--pk-ink-900);}
.pk-table tbody tr:last-child td{border-bottom:0;}
.pk-table tbody tr:hover td{background:rgba(232,241,236,.6);}
.pk-table .pk-cell-amber{color:var(--pk-amber-700);font-weight:600;}

/* ============ 安全提醒卡 ============ */
.pk-tips{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.pk-tip{
  position:relative;background:#fff;border:1px solid var(--pk-line);border-radius:var(--r-card);
  padding:26px 26px 26px 34px;box-shadow:var(--sh-1);
  transition:box-shadow .16s ease,transform .16s ease,border-color .16s ease;
}
.pk-tip::before{
  content:"";position:absolute;left:0;top:22px;bottom:22px;width:3px;border-radius:0 3px 3px 0;
  background:var(--pk-amber-500);
}
.pk-tip:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--pk-line-strong);}
.pk-tip-icon{
  width:44px;height:44px;border-radius:50%;background:var(--pk-green-050);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--pk-amber-700);font-size:17px;margin-bottom:14px;
}
.pk-tip h3{font-size:18px;font-weight:600;margin-bottom:8px;}
.pk-tip p{font-size:14.5px;color:var(--pk-ink-600);}

/* ============ FAQ ============ */
.pk-faq{max-width:820px;margin:0 auto;}
.pk-faq-item{
  background:#fff;border:1px solid var(--pk-line);border-radius:var(--r-img);
  margin-bottom:14px;overflow:hidden;transition:border-color .16s ease,background-color .16s ease,box-shadow .16s ease;
}
.pk-faq-item:hover{border-color:var(--pk-line-strong);box-shadow:var(--sh-1);}
.pk-faq-item[open]{background:var(--pk-green-050);border-color:var(--pk-green-700);}
.pk-faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;gap:14px;
  padding:20px 22px;font-size:16.5px;font-weight:600;color:var(--pk-ink-900);line-height:1.6;
}
.pk-faq-item summary::-webkit-details-marker{display:none;}
.pk-faq-num{font-variant-numeric:tabular-nums;color:var(--pk-amber-700);font-weight:700;flex:0 0 auto;}
.pk-faq-item summary i{
  margin-left:auto;flex:0 0 auto;font-size:14px;color:var(--pk-green-700);
  transition:transform .18s ease;margin-top:5px;
}
.pk-faq-item[open] summary i{transform:rotate(45deg);}
.pk-faq-body{padding:0 22px 22px 56px;font-size:15px;color:var(--pk-ink-600);line-height:1.85;}

/* ============ CTA ============ */
.pk-cta{
  position:relative;overflow:hidden;color:#fff;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
}
.pk-cta::after{content:"";position:absolute;inset:0;background:linear-gradient(110deg,rgba(11,59,46,.96),rgba(11,59,46,.8));}
.pk-cta .grid-container{position:relative;z-index:2;padding-top:64px;padding-bottom:64px;}
.pk-cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.pk-cta-inner h2{color:#fff;font-size:30px;line-height:1.35;font-weight:700;margin-bottom:10px;}
.pk-cta-inner p{color:rgba(255,255,255,.8);font-size:15.5px;max-width:620px;}
.pk-cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 页脚 ============ */
.pk-footer{background:var(--pk-green-900);color:rgba(255,255,255,.78);padding:72px 0 0;}
.pk-footer h4{color:#fff;font-size:15px;font-weight:700;margin-bottom:16px;letter-spacing:.02em;}
.pk-footer ul li{margin-bottom:10px;font-size:14.5px;}
.pk-footer a{color:rgba(255,255,255,.72);}
.pk-footer a:hover,.pk-footer a:focus{color:var(--pk-amber-500);}
.pk-footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.pk-footer-brand b{color:#fff;font-size:17px;font-weight:800;}
.pk-footer p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.66);max-width:420px;}
.pk-footer-contact li{display:flex;gap:10px;align-items:flex-start;color:rgba(255,255,255,.7);}
.pk-footer-contact i{color:var(--pk-amber-500);margin-top:5px;font-size:13px;}
.pk-disclaimer{
  margin-top:48px;padding:18px 20px;border-radius:12px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);
  font-size:13px;line-height:1.8;color:rgba(255,255,255,.62);
}
.pk-footer-bottom{
  margin-top:24px;padding:20px 0 28px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13px;color:rgba(255,255,255,.5);
}

/* ============ 返回顶部 ============ */
.pk-totop{
  position:fixed;right:22px;bottom:24px;z-index:900;
  width:46px;height:46px;border-radius:14px;border:1px solid var(--pk-line-strong);
  background:#fff;color:var(--pk-green-900);box-shadow:var(--sh-2);cursor:pointer;
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:all .2s ease;
}
.pk-totop.show{opacity:1;visibility:visible;transform:translateY(0);}
.pk-totop:hover{background:var(--pk-green-900);color:#fff;border-color:var(--pk-green-900);}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .pk-burger{display:inline-flex;}
  .pk-nav-collapse{
    position:fixed;top:0;right:-104%;width:86%;max-width:372px;height:100%;
    background:#fff;box-shadow:var(--sh-3);padding:92px 22px 36px;
    display:block;overflow-y:auto;transition:right .24s ease;z-index:1200;
  }
  .pk-nav-collapse.open{right:0;}
  .pk-menu{flex-direction:column;align-items:stretch;gap:0;}
  .pk-menu > li{width:100%;border-bottom:1px solid var(--pk-line);}
  .pk-menu > li > a,.pk-mega-trigger{display:flex;width:100%;padding:15px 2px;justify-content:space-between;border-radius:0;}
  .pk-menu > li > a::after{display:none;}
  .pk-menu > li > a.active{color:var(--pk-green-900);}
  .pk-mega-panel{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border:1px solid var(--pk-line);border-top-width:1px;
    grid-template-columns:1fr;gap:18px;padding:18px;margin:8px 0 14px;display:none;
  }
  .pk-mega.open .pk-mega-panel{display:grid;}
  .pk-nav-cta{margin-top:22px;display:block;}
  .pk-nav-cta .pk-btn{width:100%;}
  .pk-section{padding:64px 0;}
  .pk-hero-cat{min-height:auto;}
  .pk-hero-cat h1{font-size:32px;}
  .pk-hero-cat p.pk-hero-sub{font-size:16px;}
  .pk-zig{padding:56px 0;}
  .pk-zig .pk-zig-row{gap:32px;}
  .pk-zig-row.reverse{flex-direction:row;}
  .pk-tips{grid-template-columns:1fr;}
  .pk-faq-body{padding-left:22px;}
  .pk-cta-inner h2{font-size:25px;}
}
@media screen and (max-width:639px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .pk-section{padding:52px 0;}
  .pk-section-sm{padding:44px 0;}
  .pk-section-head h2{font-size:23px;}
  .pk-hero-cat h1{font-size:27px;}
  .pk-hero-cat .grid-container{padding-top:36px;padding-bottom:36px;}
  .pk-zig-body h3{font-size:21px;}
  .pk-cta-inner h2{font-size:22px;}
  .pk-cta-actions{width:100%;}
  .pk-cta-actions .pk-btn{width:100%;}
  .pk-footer{padding-top:56px;}
  .pk-footer-bottom{flex-direction:column;align-items:flex-start;}
  .pk-totop{right:16px;bottom:18px;width:42px;height:42px;}
}

/* roulang page: category4 */
:root{
  --pk-green-900:#0B3B2E;
  --pk-green-700:#14654B;
  --pk-green-050:#E8F1EC;
  --pk-amber-500:#D8A02C;
  --pk-amber-700:#A87715;
  --pk-clay-600:#B4492F;
  --pk-paper:#F7F4EC;
  --pk-surface:#FFFFFF;
  --pk-ink-900:#14201B;
  --pk-ink-600:#4A5A53;
  --pk-ink-400:#7C8B84;
  --pk-line:rgba(11,59,46,.12);
  --pk-line-strong:rgba(11,59,46,.22);
  --sh-1:0 1px 2px rgba(11,59,46,.06);
  --sh-2:0 8px 24px rgba(11,59,46,.10);
  --sh-3:0 20px 48px rgba(11,59,46,.16);
  --r-card:16px;
  --r-img:14px;
  --r-btn:12px;
  --r-input:10px;
  --maxw:1240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--pk-paper);
  color:var(--pk-ink-600);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",sans-serif;
  font-size:16px;
  line-height:1.75;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--pk-green-700);text-decoration:none;transition:color .16s ease;}
a:hover{color:var(--pk-amber-700);}
h1,h2,h3,h4{color:var(--pk-ink-900);margin:0;line-height:1.3;}
h1{font-size:44px;font-weight:800;line-height:1.2;}
h2{font-size:32px;font-weight:700;}
h3{font-size:19px;font-weight:600;line-height:1.4;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--pk-green-700);outline-offset:2px;}
.grid-container{max-width:var(--maxw)!important;padding-left:24px;padding-right:24px;}
.pk-num{font-variant-numeric:tabular-nums;}

/* ---------- 按钮 ---------- */
.pk-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:0 22px;height:48px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background .16s ease,color .16s ease,border-color .16s ease,transform .16s ease,box-shadow .16s ease;
  white-space:nowrap;
}
.pk-btn-primary{background:var(--pk-green-900);color:#fff;box-shadow:var(--sh-1);}
.pk-btn-primary:hover{background:var(--pk-green-700);color:#fff;transform:translateY(-2px);box-shadow:var(--sh-2);}
.pk-btn-primary:active{transform:translateY(0);}
.pk-btn-ghost{background:transparent;color:var(--pk-green-900);border-color:var(--pk-line-strong);}
.pk-btn-ghost:hover{border-color:var(--pk-green-700);color:var(--pk-green-700);background:var(--pk-green-050);}
.pk-btn-amber{background:var(--pk-amber-500);color:#2A1D00;}
.pk-btn-amber:hover{background:var(--pk-amber-700);color:#fff;transform:translateY(-2px);}
.pk-btn-sm{height:38px;padding:0 16px;font-size:13.5px;border-radius:10px;}
.pk-btn-block{width:100%;}

/* ---------- 胶囊 / 标签 ---------- */
.pk-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:13px;font-weight:600;
  background:var(--pk-green-050);color:var(--pk-green-700);
  border:1px solid var(--pk-line);
}
.pk-pill-amber{background:rgba(216,160,44,.14);color:var(--pk-amber-700);border-color:rgba(168,119,21,.24);}
.pk-pill-light{background:rgba(255,255,255,.14);color:#F2F7F4;border-color:rgba(255,255,255,.26);}
.pk-tagrow{display:flex;flex-wrap:wrap;gap:10px;}
.pk-tag{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 16px;border-radius:999px;border:1px solid var(--pk-line);
  background:var(--pk-surface);font-size:14px;font-weight:600;color:var(--pk-ink-600);
  transition:all .16s ease;
}
.pk-tag i{color:var(--pk-amber-500);font-size:12px;}
.pk-tag:hover{border-color:var(--pk-green-700);color:var(--pk-green-700);box-shadow:var(--sh-1);transform:translateY(-2px);}

/* ---------- 顶部导航 ---------- */
.pk-header{
  position:sticky;top:0;z-index:60;
  background:rgba(247,244,236,.94);
  backdrop-filter:saturate(150%) blur(8px);
  border-bottom:1px solid transparent;
  transition:background .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pk-header.is-stuck{background:#fff;box-shadow:var(--sh-1);border-bottom-color:var(--pk-line);}
.pk-nav{display:flex;align-items:center;gap:24px;height:76px;}
.pk-logo{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.pk-logo-mark{
  width:34px;height:34px;border-radius:10px;flex:0 0 auto;
  background:
    radial-gradient(circle at 50% 50%, rgba(255,255,255,.85) 0 22%, transparent 24%),
    conic-gradient(from 45deg, var(--pk-green-900) 0 25%, var(--pk-green-700) 0 50%, var(--pk-green-900) 0 75%, var(--pk-green-700) 0 100%);
  box-shadow:inset 0 0 0 2px rgba(255,255,255,.5),var(--sh-1);
  position:relative;
}
.pk-logo-mark::after{
  content:"";position:absolute;inset:9px;border-radius:50%;
  border:2px solid var(--pk-amber-500);
}
.pk-logo-text{display:flex;flex-direction:column;line-height:1.15;}
.pk-logo-text b{font-size:17px;font-weight:800;color:var(--pk-ink-900);letter-spacing:-.2px;}
.pk-logo-text span{font-size:11.5px;color:var(--pk-ink-400);letter-spacing:.12em;}
.pk-menu{display:flex;align-items:center;gap:4px;flex:1 1 auto;}
.pk-menu > li{position:relative;}
.pk-menu > li > a,.pk-mega-trigger{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 14px;border-radius:10px;font-size:15px;font-weight:600;
  color:var(--pk-ink-600);background:transparent;border:0;cursor:pointer;
  transition:color .16s ease,background .16s ease;
}
.pk-menu > li > a:hover,.pk-mega-trigger:hover{color:var(--pk-green-700);background:var(--pk-green-050);}
.pk-menu > li > a.active{color:var(--pk-green-900);}
.pk-menu > li > a.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--pk-amber-500);border-radius:2px;
}
.pk-mega-trigger i{font-size:11px;transition:transform .16s ease;}
.pk-mega-panel{
  position:absolute;right:0;top:calc(100% + 12px);
  width:760px;background:#fff;border-radius:18px;box-shadow:var(--sh-3);
  border-top:3px solid var(--pk-green-900);
  padding:26px 26px 22px;z-index:70;
  display:grid;grid-template-columns:1fr 1.25fr 1fr;gap:24px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .16s ease,transform .16s ease,visibility .16s ease;
}
.pk-mega-col h4{
  font-size:12px;letter-spacing:.06em;color:var(--pk-ink-400);
  font-weight:700;margin-bottom:12px;
}
.pk-mega-col ul{display:flex;flex-direction:column;gap:6px;}
.pk-mega-col ul a{font-size:14.5px;font-weight:600;color:var(--pk-ink-600);padding:5px 0;display:block;}
.pk-mega-col ul a:hover{color:var(--pk-green-700);padding-left:4px;}
.pk-mega-mini{display:flex;gap:12px;align-items:center;padding:8px;border-radius:12px;transition:background .16s ease;}
.pk-mega-mini:hover{background:var(--pk-green-050);}
.pk-mega-mini img{width:56px;height:44px;object-fit:cover;border-radius:9px;flex:0 0 auto;}
.pk-mega-mini b{display:block;font-size:14px;color:var(--pk-ink-900);font-weight:600;}
.pk-mega-mini span span{display:block;font-size:12.5px;color:var(--pk-ink-400);}
.pk-mega-card{
  border-radius:14px;padding:18px;background:var(--pk-green-900);color:#DCEAE3;
  display:flex;flex-direction:column;gap:12px;height:100%;
}
.pk-mega-card b{color:#fff;font-size:15.5px;}
.pk-mega-card p{font-size:13px;color:rgba(255,255,255,.72);line-height:1.7;}
@media (min-width:1024px){
  .pk-mega:hover .pk-mega-panel,
  .pk-mega:focus-within .pk-mega-panel,
  .pk-mega.is-open .pk-mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
  .pk-mega:hover .pk-mega-trigger i,
  .pk-mega.is-open .pk-mega-trigger i{transform:rotate(180deg);}
}
.pk-nav-cta{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.pk-burger{
  display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--pk-line-strong);
  background:#fff;color:var(--pk-green-900);font-size:17px;cursor:pointer;
}
.pk-burger:hover{background:var(--pk-green-050);}

/* ---------- Hero（分类页短首屏） ---------- */
.pk-hero-cat{
  position:relative;overflow:hidden;
  min-height:260px;display:flex;align-items:center;
  padding:32px 0;
  background:
    linear-gradient(112deg, rgba(11,59,46,.94) 0%, rgba(11,59,46,.82) 48%, rgba(20,101,75,.74) 100%),
    url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
  color:#DCEAE3;
}
.pk-hero-cat::after{
  content:"";position:absolute;right:-90px;bottom:-110px;width:340px;height:340px;
  border-radius:50%;border:26px solid rgba(216,160,44,.12);pointer-events:none;
}
.pk-hero-cat::before{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.06;
  background-image:linear-gradient(45deg,#fff 25%,transparent 25%,transparent 75%,#fff 75%),
                   linear-gradient(45deg,#fff 25%,transparent 25%,transparent 75%,#fff 75%);
  background-size:26px 26px;background-position:0 0,13px 13px;
}
.pk-hero-cat .grid-container{position:relative;z-index:2;}
.pk-hero-cat h1{color:#fff;font-size:36px;margin:14px 0 12px;letter-spacing:-.4px;}
.pk-hero-cat p{font-size:16px;color:rgba(255,255,255,.82);max-width:720px;}
.pk-crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);flex-wrap:wrap;}
.pk-crumb a{color:rgba(255,255,255,.86);font-weight:600;}
.pk-crumb a:hover{color:var(--pk-amber-500);}
.pk-crumb .cur{color:rgba(255,255,255,.6);}

/* ---------- 板块 ---------- */
.pk-sect{padding:96px 0;}
.pk-sect-tight{padding:72px 0;}
.pk-sect-soft{background:var(--pk-green-050);}
.pk-sect-paper{background:var(--pk-paper);}
.pk-sec-head{max-width:760px;margin-bottom:48px;}
.pk-sec-head .pk-kicker{
  display:block;width:32px;height:4px;border-radius:2px;
  background:var(--pk-amber-500);margin-bottom:20px;
}
.pk-sec-head h2{margin-bottom:14px;}
.pk-sec-head p{font-size:16px;color:var(--pk-ink-600);}

/* ---------- 时间轴步骤 ---------- */
.pk-timeline{position:relative;margin-top:8px;}
.pk-timeline::before{
  content:"";position:absolute;left:23px;top:12px;bottom:12px;width:2px;
  background:linear-gradient(180deg,var(--pk-green-700),rgba(20,101,75,.14));
}
.pk-step{position:relative;display:flex;gap:24px;padding:0 0 32px;}
.pk-step:last-child{padding-bottom:0;}
.pk-step-num{
  position:relative;z-index:2;flex:0 0 auto;
  width:48px;height:48px;border-radius:50%;
  background:#fff;border:2px solid var(--pk-green-700);
  color:var(--pk-green-900);font-weight:700;font-size:15px;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;box-shadow:var(--sh-1);
}
.pk-step-body{
  flex:1 1 auto;background:var(--pk-surface);border:1px solid var(--pk-line);
  border-radius:var(--r-card);padding:22px 24px;box-shadow:var(--sh-1);
  transition:box-shadow .16s ease,transform .16s ease,border-color .16s ease;
}
.pk-step-body:hover{box-shadow:var(--sh-2);transform:translateY(-2px);border-color:var(--pk-line-strong);}
.pk-step-body h3{margin-bottom:8px;}
.pk-step-body p{font-size:15px;color:var(--pk-ink-600);}
.pk-step-note{
  display:inline-flex;align-items:center;gap:8px;margin-top:14px;
  font-size:13px;color:var(--pk-amber-700);font-weight:600;
}
.pk-step-note i{font-size:12px;}

/* ---------- 准备清单 / 时效 ---------- */
.pk-panel{
  background:var(--pk-surface);border:1px solid var(--pk-line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--sh-1);height:100%;
}
.pk-check{display:flex;flex-direction:column;gap:16px;margin-top:8px;}
.pk-check li{display:flex;gap:14px;align-items:flex-start;}
.pk-check i{
  color:var(--pk-green-700);font-size:13px;margin-top:6px;flex:0 0 auto;
}
.pk-check b{display:block;font-size:15.5px;color:var(--pk-ink-900);font-weight:600;margin-bottom:4px;}
.pk-check span{font-size:14.5px;color:var(--pk-ink-600);}
.pk-metric{display:flex;align-items:baseline;gap:10px;padding:14px 0;border-bottom:1px dashed var(--pk-line-strong);}
.pk-metric:last-of-type{border-bottom:0;}
.pk-metric b{
  font-size:36px;font-weight:700;color:var(--pk-green-900);
  font-variant-numeric:tabular-nums;line-height:1;
}
.pk-metric span{font-size:13.5px;color:var(--pk-ink-400);}
.pk-note-box{
  margin-top:18px;background:var(--pk-green-050);border:1px solid var(--pk-line);
  border-radius:14px;padding:16px 18px;font-size:14px;color:var(--pk-ink-600);
}
.pk-note-box b{color:var(--pk-green-900);}

/* ---------- FAQ 折叠 ---------- */
.pk-faq{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:14px;}
.pk-faq-item{
  background:var(--pk-surface);border:1px solid var(--pk-line);
  border-radius:14px;box-shadow:var(--sh-1);
  transition:border-color .16s ease,background .16s ease,box-shadow .16s ease;
}
.pk-faq-item:hover{border-color:var(--pk-line-strong);box-shadow:var(--sh-2);}
.pk-faq-item[open]{background:var(--pk-green-050);border-color:var(--pk-green-700);}
.pk-faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:20px 24px;font-size:16.5px;font-weight:600;color:var(--pk-ink-900);
}
.pk-faq-item summary::-webkit-details-marker{display:none;}
.pk-faq-num{
  font-size:14px;font-weight:700;color:var(--pk-amber-700);
  font-variant-numeric:tabular-nums;flex:0 0 auto;
}
.pk-faq-q{flex:1 1 auto;}
.pk-faq-item summary::after{
  content:"＋";font-size:18px;color:var(--pk-green-700);flex:0 0 auto;
  transition:transform .18s ease;line-height:1;
}
.pk-faq-item[open] summary::after{transform:rotate(45deg);}
.pk-faq-a{padding:0 24px 22px 62px;font-size:15px;color:var(--pk-ink-600);line-height:1.8;}

/* ---------- 表单 ---------- */
.pk-contact{
  background:linear-gradient(120deg,var(--pk-green-900),#0E4E3B 65%,#12604A);
  color:#DCEAE3;position:relative;overflow:hidden;
}
.pk-contact::after{
  content:"";position:absolute;left:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  border:22px solid rgba(216,160,44,.10);
}
.pk-contact .grid-container{position:relative;z-index:2;}
.pk-contact h2{color:#fff;}
.pk-contact .pk-kicker{background:var(--pk-amber-500);}
.pk-contact p{color:rgba(255,255,255,.78);font-size:15.5px;}
.pk-contact-list{display:flex;flex-direction:column;gap:14px;margin-top:28px;}
.pk-contact-list li{display:flex;gap:12px;align-items:flex-start;font-size:14.5px;color:rgba(255,255,255,.82);}
.pk-contact-list i{color:var(--pk-amber-500);margin-top:5px;font-size:14px;}
.pk-form-card{
  background:#fff;border-radius:18px;padding:30px;box-shadow:var(--sh-3);
}
.pk-field{margin-bottom:18px;}
.pk-field label{
  display:flex;align-items:center;gap:6px;font-size:13px;font-weight:600;
  color:var(--pk-ink-900);margin-bottom:8px;
}
.pk-field .req{width:6px;height:6px;border-radius:50%;background:var(--pk-amber-500);display:inline-block;}
.pk-field input,.pk-field select,.pk-field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-input);
  border:1px solid var(--pk-line-strong);background:#fff;color:var(--pk-ink-900);
  font-size:15px;transition:border-color .16s ease,box-shadow .16s ease;
}
.pk-field textarea{height:120px;padding:12px 14px;resize:vertical;line-height:1.7;}
.pk-field input:focus,.pk-field select:focus,.pk-field textarea:focus{
  outline:none;border-color:var(--pk-green-700);
  box-shadow:0 0 0 3px rgba(20,101,75,.16);
}
.pk-field-hint{font-size:12.5px;color:var(--pk-ink-400);margin-top:6px;}
.pk-form-actions{display:flex;justify-content:flex-end;margin-top:22px;}
.pk-form-status{
  display:none;margin-top:16px;padding:12px 16px;border-radius:10px;
  background:var(--pk-green-050);border:1px solid var(--pk-line);
  font-size:13.5px;color:var(--pk-green-700);
}
.pk-form-status.is-visible{display:block;}

/* ---------- 页脚 ---------- */
.pk-footer{background:var(--pk-green-900);color:rgba(255,255,255,.72);padding:72px 0 28px;font-size:14.5px;}
.pk-footer h4{color:#fff;font-size:14px;letter-spacing:.04em;margin-bottom:16px;font-weight:700;}
.pk-footer ul{display:flex;flex-direction:column;gap:10px;}
.pk-footer a{color:rgba(255,255,255,.72);}
.pk-footer a:hover{color:var(--pk-amber-500);}
.pk-footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.pk-footer-brand b{color:#fff;font-size:17px;font-weight:800;}
.pk-footer-contact li{display:flex;gap:10px;align-items:flex-start;}
.pk-footer-contact i{color:var(--pk-amber-500);margin-top:5px;font-size:13px;}
.pk-footer p{font-size:13.5px;line-height:1.8;}
.pk-disclaimer{
  margin-top:40px;padding:18px 20px;border-radius:14px;
  background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.12);
  font-size:12.5px;color:rgba(255,255,255,.6);line-height:1.8;
}
.pk-footer-bottom{
  margin-top:22px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:12.5px;color:rgba(255,255,255,.55);
}

/* ---------- 返回顶部 ---------- */
.pk-top-fab{
  position:fixed;right:22px;bottom:26px;z-index:80;
  width:46px;height:46px;border-radius:14px;border:1px solid var(--pk-line);
  background:#fff;color:var(--pk-green-900);box-shadow:var(--sh-2);cursor:pointer;
  opacity:0;visibility:hidden;transition:all .18s ease;font-size:15px;
}
.pk-top-fab.is-visible{opacity:1;visibility:visible;}
.pk-top-fab:hover{background:var(--pk-green-900);color:#fff;border-color:var(--pk-green-900);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .grid-container{padding-left:20px;padding-right:20px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  .pk-hero-cat h1{font-size:28px;}
  .pk-sect{padding:56px 0;}
  .pk-sect-tight{padding:48px 0;}
  .pk-sec-head{margin-bottom:32px;}
  .pk-burger{display:inline-flex;align-items:center;justify-content:center;}
  .pk-menu{
    position:fixed;top:76px;right:0;width:min(88vw,360px);height:calc(100vh - 76px);
    background:#fff;flex-direction:column;align-items:stretch;gap:2px;
    padding:20px;box-shadow:var(--sh-3);overflow-y:auto;
    transform:translateX(105%);transition:transform .22s ease;z-index:65;
  }
  .pk-menu.is-open{transform:translateX(0);}
  .pk-menu > li > a,.pk-mega-trigger{width:100%;justify-content:space-between;padding:13px 14px;font-size:16px;}
  .pk-menu > li > a.active::after{left:14px;right:auto;width:26px;}
  .pk-mega-panel{
    position:static;width:100%;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border-radius:14px;border:1px solid var(--pk-line);
    border-top:3px solid var(--pk-green-900);
    display:none;padding:16px;grid-template-columns:1fr;gap:18px;margin-top:6px;
  }
  .pk-mega.is-open .pk-mega-panel{display:grid;}
  .pk-nav-cta .pk-btn{display:none;}
  .pk-step-body{padding:18px;}
  .pk-timeline::before{left:19px;}
  .pk-step-num{width:40px;height:40px;font-size:14px;}
  .pk-faq-a{padding:0 20px 20px 20px;}
  .pk-form-actions{justify-content:stretch;}
  .pk-form-actions .pk-btn{width:100%;}
  .pk-footer{padding:56px 0 24px;}
}
@media (max-width:639px){
  body{font-size:15.5px;}
  .pk-hero-cat{min-height:230px;padding:26px 0;}
  .pk-hero-cat h1{font-size:24px;}
  .pk-hero-cat p{font-size:14.5px;}
  .pk-logo-text b{font-size:15.5px;}
  .pk-logo-text span{font-size:10.5px;}
  .pk-sec-head h2{font-size:22px;}
  .pk-panel{padding:20px;}
  .pk-faq-item summary{padding:16px;font-size:15.5px;gap:12px;}
  .pk-form-card{padding:20px;}
  .pk-metric b{font-size:30px;}
  .pk-footer-bottom{flex-direction:column;align-items:flex-start;}
}