/* roulang page: index */
:root{
  --pb-primary:#1B6E8C;
  --pb-primary-dark:#12546B;
  --pb-primary-50:#EAF3F6;
  --pb-secondary:#3F9A78;
  --pb-accent:#F08A3C;
  --pb-bg:#F5F8F7;
  --pb-bg-alt:#EDF4F3;
  --pb-surface:#FFFFFF;
  --pb-text:#16211F;
  --pb-text-2:#5C6E6C;
  --pb-text-3:#8A9A98;
  --pb-border:#E2EAE8;
  --pb-radius-card:14px;
  --pb-radius-btn:10px;
  --pb-radius-pill:999px;
  --pb-shadow-sm:0 1px 2px rgba(18,84,107,.06);
  --pb-shadow:0 1px 2px rgba(18,84,107,.06),0 12px 28px -12px rgba(18,84,107,.14);
  --pb-shadow-hover:0 2px 4px rgba(18,84,107,.08),0 20px 40px -16px rgba(18,84,107,.22);
  --pb-font:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--pb-font);
  font-size:16px;
  line-height:1.8;
  color:var(--pb-text);
  background:var(--pb-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:12px;}
a{color:var(--pb-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--pb-primary-dark);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
::selection{background:var(--pb-primary-50);color:var(--pb-primary-dark);}
:focus-visible{outline:2px solid var(--pb-primary);outline-offset:2px;border-radius:6px;}
.pb-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.pb-container{padding:0 32px;}}
.pb-num{font-variant-numeric:tabular-nums;}
.pb-sr{position:absolute;width:1px;height:1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;}

/* ---------- 按钮 ---------- */
.pb-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;min-height:44px;
  font-size:15px;font-weight:600;line-height:1.2;
  border-radius:var(--pb-radius-btn);border:1.5px solid transparent;
  cursor:pointer;text-align:center;
  transition:transform .25s ease,box-shadow .25s ease,background-color .25s ease,color .25s ease,border-color .25s ease;
}
.pb-btn--primary{background:var(--pb-primary);color:#fff;box-shadow:var(--pb-shadow-sm);}
.pb-btn--primary:hover{background:var(--pb-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--pb-shadow);}
.pb-btn--primary:active{transform:translateY(0);filter:brightness(.96);}
.pb-btn--ghost{background:#fff;color:var(--pb-primary);border-color:var(--pb-primary);}
.pb-btn--ghost:hover{background:var(--pb-primary-50);color:var(--pb-primary-dark);transform:translateY(-1px);}
.pb-btn--line{background:transparent;color:var(--pb-text);border-color:var(--pb-border);}
.pb-btn--line:hover{border-color:var(--pb-primary);color:var(--pb-primary);}
.pb-btn--sm{padding:9px 18px;font-size:14px;min-height:38px;}
.pb-btn[disabled],.pb-btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none;}
.pb-btn--block{width:100%;}

/* ---------- 徽章 / 标签 ---------- */
.pb-badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;
  font-size:12px;font-weight:600;line-height:1;border-radius:var(--pb-radius-pill);
  background:var(--pb-primary-50);color:var(--pb-primary);white-space:nowrap;
}
.pb-badge--ok{background:rgba(63,154,120,.12);color:#2E7A5E;}
.pb-badge--hot{background:rgba(240,138,60,.14);color:#B75F16;}
.pb-pill{
  display:inline-flex;align-items:center;gap:8px;padding:7px 16px;
  background:var(--pb-primary-50);color:var(--pb-primary);
  font-size:13px;font-weight:600;border-radius:var(--pb-radius-pill);
}

/* ---------- 页头 ---------- */
.pb-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--pb-border);
  transition:box-shadow .25s ease;
}
.pb-header.is-scrolled{box-shadow:var(--pb-shadow-sm);}
.pb-header__inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px;}
.pb-logo{display:inline-flex;align-items:center;gap:10px;color:var(--pb-text);flex:0 0 auto;}
.pb-logo:hover{color:var(--pb-primary);}
.pb-logo__mark{display:inline-flex;align-items:center;justify-content:center;width:32px;height:32px;color:var(--pb-primary);}
.pb-logo__mark svg{width:32px;height:32px;display:block;}
.pb-logo__text{font-size:17px;font-weight:700;letter-spacing:-.01em;}
.pb-nav ul{display:flex;align-items:center;gap:26px;}
.pb-nav a{
  position:relative;display:inline-block;padding:24px 0;
  font-size:15px;font-weight:500;color:var(--pb-text-2);
}
.pb-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:16px;height:2px;
  background:var(--pb-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.pb-nav a:hover{color:var(--pb-primary);}
.pb-nav a:hover::after{transform:scaleX(1);}
.pb-nav a.is-active{color:var(--pb-primary);font-weight:600;}
.pb-nav a.is-active::after{transform:scaleX(1);}
.pb-header__aside{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.pb-status{display:inline-flex;align-items:center;gap:7px;font-size:13px;color:var(--pb-text-2);white-space:nowrap;}
.pb-status i{
  width:8px;height:8px;border-radius:50%;background:var(--pb-secondary);display:inline-block;
  animation:pb-pulse 1.5s ease-in-out infinite;
}
@keyframes pb-pulse{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}
.pb-countdown{display:inline-flex;align-items:center;gap:3px;font-size:13px;font-weight:600;color:var(--pb-text-2);}
.pb-countdown span{
  display:inline-flex;align-items:center;justify-content:center;
  min-width:28px;height:26px;padding:0 4px;border-radius:6px;
  background:var(--pb-primary-50);color:var(--pb-accent);
  font-variant-numeric:tabular-nums;letter-spacing:.02em;
}
.pb-countdown b{color:var(--pb-text-3);font-weight:600;}
.pb-burger{
  display:none;width:44px;height:44px;border:1.5px solid var(--pb-border);
  border-radius:10px;background:#fff;cursor:pointer;padding:0;
  align-items:center;justify-content:center;
}
.pb-burger span{display:block;width:18px;height:2px;background:var(--pb-text);position:relative;transition:background .2s ease;}
.pb-burger span::before,.pb-burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--pb-text);transition:transform .25s ease,top .25s ease;
}
.pb-burger span::before{top:-6px;}
.pb-burger span::after{top:6px;}
.pb-burger[aria-expanded="true"] span{background:transparent;}
.pb-burger[aria-expanded="true"] span::before{top:0;transform:rotate(45deg);}
.pb-burger[aria-expanded="true"] span::after{top:0;transform:rotate(-45deg);}

/* ---------- Hero ---------- */
.pb-hero{position:relative;overflow:hidden;background:linear-gradient(180deg,#F7FBFB 0%,var(--pb-bg) 100%);}
.pb-hero__inner{
  display:grid;grid-template-columns:1fr;gap:36px;
  align-items:center;min-height:78vh;padding:56px 0 44px;
}
@media (min-width:1024px){
  .pb-hero__inner{grid-template-columns:6fr 6fr;gap:52px;min-height:78vh;padding:72px 0 56px;}
}
.pb-hero__title{
  font-size:clamp(30px,4.4vw,46px);font-weight:700;line-height:1.22;letter-spacing:-.01em;
  margin:18px 0 16px;
}
.pb-hero__sub{font-size:17px;color:var(--pb-text-2);line-height:1.8;}
.pb-hero__sub span{display:block;}
.pb-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.pb-hero__media{position:relative;}
.pb-hero__media img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  border-radius:var(--pb-radius-card);border:1px solid var(--pb-border);box-shadow:var(--pb-shadow);
}
.pb-hero__leaf{position:absolute;right:-10px;bottom:-16px;width:150px;height:150px;opacity:.12;pointer-events:none;}
.pb-stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:16px;
  margin-top:36px;padding:20px 22px;background:#fff;
  border:1px solid var(--pb-border);border-radius:var(--pb-radius-card);box-shadow:var(--pb-shadow-sm);
}
.pb-stats__item{text-align:left;}
.pb-stats__num{
  display:block;font-size:24px;font-weight:700;color:var(--pb-primary);
  font-variant-numeric:tabular-nums;line-height:1.3;
}
.pb-stats__num em{font-style:normal;color:var(--pb-accent);}
.pb-stats__label{font-size:13px;color:var(--pb-text-2);}

/* ---------- 板块通用 ---------- */
.pb-section{padding:52px 0;}
@media (min-width:1024px){.pb-section{padding:88px 0;}}
.pb-section--alt{background:var(--pb-bg-alt);}
.pb-section--white{background:var(--pb-surface);}
.pb-section__head{margin-bottom:32px;}
@media (min-width:1024px){.pb-section__head{margin-bottom:44px;}}
.pb-section__head--row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;}
.pb-h2{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;position:relative;padding-top:16px;}
.pb-h2::before{content:"";position:absolute;top:0;left:0;width:40px;height:3px;background:var(--pb-primary);border-radius:2px;}
.pb-h3{font-size:20px;font-weight:600;}
.pb-section__desc{margin-top:14px;font-size:15px;color:var(--pb-text-2);max-width:760px;}
.pb-link-more{font-size:14px;font-weight:600;color:var(--pb-primary);white-space:nowrap;}
.pb-link-more:hover{text-decoration:underline;text-underline-offset:4px;}

/* ---------- 步骤条 ---------- */
.pb-steps{display:grid;grid-template-columns:1fr;gap:26px;position:relative;}
@media (min-width:768px){.pb-steps{grid-template-columns:repeat(4,1fr);gap:24px;}}
@media (min-width:768px){
  .pb-steps::before{
    content:"";position:absolute;top:22px;left:12%;right:12%;height:2px;
    background:linear-gradient(90deg,var(--pb-primary-50),var(--pb-border));z-index:0;
  }
}
.pb-step{position:relative;z-index:1;}
.pb-step__dot{
  display:flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:50%;
  background:#fff;border:2px solid var(--pb-border);color:var(--pb-text-3);
  font-weight:700;font-size:16px;font-variant-numeric:tabular-nums;
  transition:all .25s ease;
}
.pb-step--done .pb-step__dot{background:var(--pb-secondary);border-color:var(--pb-secondary);color:#fff;}
.pb-step--active .pb-step__dot{background:var(--pb-primary);border-color:var(--pb-primary);color:#fff;box-shadow:0 0 0 6px rgba(27,110,140,.10);}
.pb-step:hover .pb-step__dot{transform:translateY(-2px);}
.pb-step__title{margin:16px 0 8px;font-size:18px;font-weight:600;}
.pb-step__desc{font-size:14px;color:var(--pb-text-2);line-height:1.75;}
@media (max-width:767px){
  .pb-steps::after{
    content:"";position:absolute;top:8px;bottom:8px;left:21px;width:2px;background:var(--pb-border);z-index:0;
  }
}

/* ---------- 权益预览（1大+2小） ---------- */
.pb-benefit{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:768px){.pb-benefit{grid-template-columns:repeat(12,1fr);}}
.pb-benefit__big{position:relative;display:flex;flex-direction:column;justify-content:flex-end;min-height:320px;padding:26px;border-radius:var(--pb-radius-card);overflow:hidden;border:1px solid var(--pb-border);background:var(--pb-bg-alt);}
.pb-benefit__big img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;border-radius:0;z-index:0;}
.pb-benefit__big::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(18,84,107,0) 30%,rgba(18,84,107,.78) 100%);z-index:1;}
.pb-benefit__big .pb-benefit__body{position:relative;z-index:2;color:#fff;}
.pb-benefit__big .pb-benefit__body h3{font-size:22px;font-weight:700;margin:12px 0 8px;}
.pb-benefit__big .pb-benefit__body p{font-size:14px;color:rgba(255,255,255,.86);line-height:1.7;}
.pb-benefit__small{
  display:flex;flex-direction:column;justify-content:space-between;
  min-height:152px;padding:22px;background:#fff;border:1px solid var(--pb-border);
  border-radius:var(--pb-radius-card);box-shadow:var(--pb-shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.pb-benefit__small:hover{transform:translateY(-3px);box-shadow:var(--pb-shadow-hover);}
.pb-benefit__small h4{font-size:17px;font-weight:600;margin:12px 0 6px;}
.pb-benefit__small p{font-size:13.5px;color:var(--pb-text-2);line-height:1.7;}
@media (min-width:768px){
  .pb-benefit__big{grid-column:span 6;}
  .pb-benefit__small{grid-column:span 3;}
}
@media (min-width:768px) and (max-width:1023px){
  .pb-benefit__big{grid-column:span 12;}
  .pb-benefit__small{grid-column:span 6;}
}

/* ---------- 准备清单 / 进度 ---------- */
.pb-progressWrap{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:1024px){.pb-progressWrap{grid-template-columns:5fr 7fr;gap:32px;}}
.pb-progressCard{background:#fff;border:1px solid var(--pb-border);border-radius:var(--pb-radius-card);padding:26px;box-shadow:var(--pb-shadow-sm);}
.pb-progressCard__value{font-size:38px;font-weight:700;color:var(--pb-primary);font-variant-numeric:tabular-nums;line-height:1.1;}
.pb-progressCard__value small{font-size:16px;font-weight:600;color:var(--pb-text-3);margin-left:4px;}
.pb-bar{position:relative;height:12px;border-radius:var(--pb-radius-pill);background:var(--pb-primary-50);overflow:visible;margin:20px 0 14px;}
.pb-bar__fill{position:absolute;top:0;left:0;bottom:0;width:72%;border-radius:var(--pb-radius-pill);background:linear-gradient(90deg,var(--pb-primary),var(--pb-secondary));}
.pb-bar__node{position:absolute;top:50%;left:72%;width:14px;height:14px;border-radius:50%;background:var(--pb-accent);border:3px solid #fff;transform:translate(-50%,-50%);box-shadow:0 1px 4px rgba(240,138,60,.5);}
.pb-progressCard__note{font-size:13.5px;color:var(--pb-text-2);}
.pb-tasks{display:flex;flex-direction:column;gap:14px;}
.pb-task{
  display:grid;grid-template-columns:auto 1fr auto;align-items:center;gap:16px;
  padding:18px 20px;background:#fff;border:1px solid var(--pb-border);
  border-radius:var(--pb-radius-card);box-shadow:var(--pb-shadow-sm);
  transition:transform .25s ease,box-shadow .25s ease;
}
.pb-task:hover{transform:translateY(-2px);box-shadow:var(--pb-shadow-hover);}
.pb-task__icon{
  width:40px;height:40px;border-radius:12px;background:var(--pb-primary-50);
  display:flex;align-items:center;justify-content:center;color:var(--pb-primary);
}
.pb-task__name{font-size:15px;font-weight:600;margin-bottom:8px;}
.pb-task__mini{height:6px;border-radius:var(--pb-radius-pill);background:var(--pb-bg-alt);overflow:hidden;}
.pb-task__mini i{display:block;height:100%;border-radius:var(--pb-radius-pill);background:var(--pb-secondary);}
.pb-task__mini i.low{background:var(--pb-accent);}
.pb-task__meta{font-size:12.5px;color:var(--pb-text-3);margin-top:6px;}

/* ---------- 资讯列表（CMS） ---------- */
.pb-news__grid{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.pb-news__grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.pb-news__grid{grid-template-columns:repeat(3,1fr);}}
.pb-card{
  background:#fff;border:1px solid var(--pb-border);border-radius:var(--pb-radius-card);
  padding:22px;box-shadow:var(--pb-shadow-sm);
  display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.pb-card:hover{transform:translateY(-3px);box-shadow:var(--pb-shadow-hover);}
.pb-card:hover .pb-news__title a{color:var(--pb-primary);}
.pb-news__title{font-size:17px;font-weight:600;line-height:1.55;margin:12px 0 8px;}
.pb-news__title a{
  color:var(--pb-text);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pb-news__desc{
  font-size:14px;color:var(--pb-text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.pb-news__meta{
  margin-top:18px;padding-top:14px;border-top:1px solid var(--pb-border);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  font-size:13px;color:var(--pb-text-3);
}
.pb-news__link{font-weight:600;}
.pb-empty{
  grid-column:1/-1;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:48px 24px;background:#fff;border:1px dashed var(--pb-border);border-radius:var(--pb-radius-card);
  color:var(--pb-text-2);font-size:15px;text-align:center;
}
.pb-empty svg{width:48px;height:48px;color:var(--pb-text-3);}

/* ---------- FAQ ---------- */
.pb-faq{display:grid;grid-template-columns:1fr;gap:12px;}
@media (min-width:1024px){.pb-faq{grid-template-columns:repeat(2,1fr);gap:14px 20px;}}
.pb-faq__item{background:#fff;border:1px solid var(--pb-border);border-radius:var(--pb-radius-card);overflow:hidden;transition:box-shadow .25s ease;}
.pb-faq__item:hover{box-shadow:var(--pb-shadow-sm);}
.pb-faq__item[open]{box-shadow:var(--pb-shadow);}
.pb-faq__q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 22px;cursor:pointer;list-style:none;
  font-size:16px;font-weight:600;color:var(--pb-text);
}
.pb-faq__q::-webkit-details-marker{display:none;}
.pb-faq__q:hover{color:var(--pb-primary);}
.pb-faq__icon{position:relative;flex:0 0 auto;width:18px;height:18px;}
.pb-faq__icon::before,.pb-faq__icon::after{
  content:"";position:absolute;background:var(--pb-primary);border-radius:2px;transition:transform .25s ease,opacity .25s ease;
}
.pb-faq__icon::before{left:0;top:8px;width:18px;height:2px;}
.pb-faq__icon::after{left:8px;top:0;width:2px;height:18px;}
.pb-faq__item[open] .pb-faq__icon::after{transform:scaleY(0);opacity:0;}
.pb-faq__a{padding:0 22px 18px;font-size:14.5px;color:var(--pb-text-2);line-height:1.8;border-left:3px solid var(--pb-primary);margin:0 22px 18px;padding-left:16px;padding-right:0;}

/* ---------- CTA 条 ---------- */
.pb-cta{background:var(--pb-primary-dark);color:#fff;}
.pb-cta__inner{
  display:flex;flex-direction:column;align-items:flex-start;gap:20px;
  min-height:148px;padding:36px 0;justify-content:center;
}
@media (min-width:1024px){.pb-cta__inner{flex-direction:row;align-items:center;justify-content:space-between;padding:0;min-height:148px;}}
.pb-cta__title{font-size:clamp(20px,2.2vw,26px);font-weight:700;line-height:1.35;color:#fff;}
.pb-cta__desc{margin-top:8px;font-size:14.5px;color:rgba(255,255,255,.75);}
.pb-cta__actions{display:flex;align-items:center;gap:14px;flex-wrap:wrap;}
.pb-cta__round{
  width:52px;height:52px;border-radius:50%;background:var(--pb-accent);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
  transition:transform .25s ease,box-shadow .25s ease;
}
.pb-cta__round:hover{transform:translateX(3px);color:#fff;box-shadow:0 10px 24px -10px rgba(240,138,60,.9);}
.pb-cta .pb-btn--ghost{background:transparent;border-color:rgba(255,255,255,.6);color:#fff;}
.pb-cta .pb-btn--ghost:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}

/* ---------- 页脚 ---------- */
.pb-footer{background:var(--pb-primary-dark);color:rgba(255,255,255,.72);}
.pb-footer__grid{display:grid;grid-template-columns:1fr;gap:32px;padding:52px 0 36px;}
@media (min-width:768px){.pb-footer__grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.pb-footer__grid{grid-template-columns:2fr 1fr 1fr 1.4fr;gap:40px;padding:64px 0 44px;}}
.pb-footer__brand .pb-logo{color:#fff;}
.pb-footer__brand .pb-logo__mark{color:#fff;}
.pb-footer__brand .pb-logo:hover{color:#fff;}
.pb-footer__tag{margin:16px 0 16px;font-size:13.5px;line-height:1.8;color:rgba(255,255,255,.72);max-width:320px;}
.pb-footer h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.pb-footer__list li{margin-bottom:10px;}
.pb-footer__list a{color:rgba(255,255,255,.72);font-size:14px;border-bottom:2px solid transparent;transition:color .2s ease,border-color .2s ease;}
.pb-footer__list a:hover{color:#fff;border-bottom-color:#fff;}
.pb-footer__contact li{font-size:14px;margin-bottom:10px;}
.pb-footer__bottom{
  border-top:1px solid rgba(255,255,255,.14);padding:18px 0 24px;
  display:flex;flex-direction:column;gap:10px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.6);
}
@media (min-width:768px){.pb-footer__bottom{flex-direction:row;align-items:center;}}
.pb-footer__bottom a{color:rgba(255,255,255,.6);}
.pb-footer__bottom a:hover{color:#fff;}
.pb-footer__status{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.8);}
.pb-footer__status i{width:8px;height:8px;border-radius:50%;background:var(--pb-secondary);display:inline-block;}
.pb-watermark{font-size:12px;color:rgba(255,255,255,.45);}

/* ---------- 表单 ---------- */
.pb-form{margin-top:6px;}
.pb-form__label{display:block;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:8px;}
.pb-form__row{display:flex;gap:10px;flex-wrap:wrap;}
.pb-form input[type="email"],
.pb-form input[type="text"]{
  flex:1 1 180px;height:48px;padding:0 16px;font-size:14px;font-family:inherit;
  color:var(--pb-text);background:#fff;border:1.5px solid transparent;border-radius:var(--pb-radius-btn);
  transition:box-shadow .2s ease,border-color .2s ease;
}
.pb-form input::placeholder{color:var(--pb-text-3);}
.pb-form input:focus{outline:none;border-color:var(--pb-primary);box-shadow:0 0 0 3px rgba(27,110,140,.12);}
.pb-form__tip{margin-top:10px;font-size:13px;color:var(--pb-accent);opacity:0;transition:opacity .25s ease;}
.pb-form__tip.is-show{opacity:1;}

/* ---------- 面包屑（内页共用） ---------- */
.pb-crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--pb-text-2);padding:18px 0;}
.pb-crumb a{color:var(--pb-text-2);}
.pb-crumb a:hover{color:var(--pb-primary);}
.pb-crumb span{color:var(--pb-text-3);}

/* ---------- 移动端导航 ---------- */
@media (max-width:1023px){
  .pb-burger{display:inline-flex;}
  .pb-status,.pb-countdown{display:none;}
  .pb-nav{
    position:fixed;top:72px;right:0;width:min(320px,86vw);height:calc(100vh - 72px);
    background:#fff;border-left:1px solid var(--pb-border);
    transform:translateX(100%);transition:transform .28s ease;
    overflow-y:auto;padding:12px 20px 32px;z-index:60;
  }
  .pb-nav.is-open{transform:translateX(0);}
  .pb-nav ul{flex-direction:column;align-items:stretch;gap:0;}
  .pb-nav a{padding:0;display:flex;align-items:center;min-height:52px;font-size:16px;border-bottom:1px solid var(--pb-border);}
  .pb-nav a::after{display:none;}
  .pb-nav a.is-active{color:var(--pb-primary);}
  .pb-header__aside .pb-btn--sm{padding:9px 14px;font-size:13px;}
}
@media (max-width:639px){
  .pb-hero__inner{padding:36px 0 32px;min-height:68vh;}
  .pb-stats{grid-template-columns:1fr;gap:14px;padding:18px;}
  .pb-stats__item{display:flex;align-items:baseline;gap:10px;}
  .pb-stats__num{font-size:21px;}
  .pb-cta__inner{padding:32px 0;min-height:200px;}
  .pb-task{grid-template-columns:auto 1fr;gap:12px;}
  .pb-task__status{grid-column:2;}
}

/* roulang page: category1 */
:root{
  --pb-primary:#1B6E8C;
  --pb-primary-dark:#12546B;
  --pb-primary-50:#EAF3F6;
  --pb-secondary:#3F9A78;
  --pb-accent:#F08A3C;
  --pb-bg:#F5F8F7;
  --pb-bg-alt:#EDF4F3;
  --pb-surface:#FFFFFF;
  --pb-text:#16211F;
  --pb-text-2:#5C6E6C;
  --pb-text-3:#8A9A98;
  --pb-border:#E2EAE8;
  --pb-radius-card:14px;
  --pb-radius-btn:10px;
  --pb-radius-pill:999px;
  --pb-shadow-sm:0 1px 2px rgba(18,84,107,.06);
  --pb-shadow:0 1px 2px rgba(18,84,107,.06),0 12px 28px -12px rgba(18,84,107,.14);
  --pb-shadow-hover:0 2px 4px rgba(18,84,107,.08),0 20px 40px -16px rgba(18,84,107,.22);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--pb-text);
  background:var(--pb-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--pb-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--pb-primary-dark)}
button,input{font-family:inherit}
h1,h2,h3,h4,p,ul,ol{margin:0}
ul,ol{padding-left:0}
.pb-num{font-variant-numeric:tabular-nums}
.pb-skip{
  position:absolute;left:-9999px;top:0;z-index:99;background:var(--pb-primary);color:#fff;
  padding:10px 18px;border-radius:0 0 10px 0;font-size:14px;
}
.pb-skip:focus{left:0;color:#fff}
:focus-visible{outline:2px solid var(--pb-primary);outline-offset:2px}

/* 容器 */
.pb-container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:1024px){.pb-container{padding:0 32px}}

/* 通用按钮 */
.pb-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:13px 26px;border:1.5px solid transparent;
  border-radius:var(--pb-radius-btn);font-size:15px;font-weight:600;line-height:1.2;
  cursor:pointer;text-align:center;transition:background .25s ease,color .25s ease,box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.pb-btn--primary{background:var(--pb-primary);color:#fff;box-shadow:var(--pb-shadow-sm)}
.pb-btn--primary:hover{background:var(--pb-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--pb-shadow)}
.pb-btn--primary:active{transform:translateY(0);filter:brightness(.96)}
.pb-btn--ghost{background:#fff;border-color:var(--pb-primary);color:var(--pb-primary)}
.pb-btn--ghost:hover{background:var(--pb-primary-50);color:var(--pb-primary-dark);transform:translateY(-1px)}
.pb-btn--sm{padding:9px 18px;font-size:14px;min-height:40px}
.pb-btn[disabled]{opacity:.5;cursor:not-allowed}

/* 徽章 */
.pb-badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:var(--pb-radius-pill);font-size:12px;font-weight:600;letter-spacing:.02em;
  background:var(--pb-primary-50);color:var(--pb-primary);white-space:nowrap;
}
.pb-badge--success{background:rgba(63,154,120,.14);color:#2E7A5D}
.pb-badge--accent{background:rgba(240,138,60,.14);color:#B85F1C}

/* 页头 */
.pb-header{
  position:sticky;top:0;z-index:50;background:rgba(255,255,255,.92);
  border-bottom:1px solid var(--pb-border);transition:box-shadow .25s ease,background .25s ease;
}
.pb-header.is-scrolled{box-shadow:var(--pb-shadow-sm);background:rgba(255,255,255,.96)}
.pb-header__inner{display:flex;align-items:center;gap:22px;min-height:68px}
.pb-logo{display:inline-flex;align-items:baseline;gap:10px;color:var(--pb-text);flex:none}
.pb-logo:hover{color:var(--pb-text)}
.pb-logo__mark{width:30px;height:30px;color:var(--pb-primary);display:inline-flex;align-self:center}
.pb-logo__mark svg{width:100%;height:100%;display:block}
.pb-logo__text{font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.pb-nav ul{list-style:none;margin:0;padding:0;display:flex;gap:24px}
.pb-nav a{position:relative;display:inline-block;padding:22px 0;font-size:15px;font-weight:500;color:var(--pb-text-2)}
.pb-nav a:hover{color:var(--pb-primary)}
.pb-nav a.is-active{color:var(--pb-primary);font-weight:600}
.pb-nav a.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:14px;height:2px;
  background:var(--pb-primary);border-radius:2px;
}
.pb-header__aside{margin-left:auto;display:flex;align-items:center;gap:14px}
.pb-status{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--pb-text-2);white-space:nowrap}
.pb-status i{width:8px;height:8px;border-radius:50%;background:var(--pb-secondary);display:inline-block;animation:pb-pulse 1.5s ease-in-out infinite}
@keyframes pb-pulse{0%,100%{opacity:1;transform:scale(1)}50%{opacity:.5;transform:scale(.82)}}
.pb-countdown{display:inline-flex;align-items:center;gap:3px;font-size:12px;color:var(--pb-text-3)}
.pb-countdown span{
  display:inline-block;min-width:26px;text-align:center;padding:3px 4px;border-radius:6px;
  background:var(--pb-primary-50);color:var(--pb-accent);font-weight:700;font-variant-numeric:tabular-nums;
}
.pb-countdown b{color:var(--pb-text-3);font-weight:600}
.pb-burger{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  border:1px solid var(--pb-border);background:#fff;border-radius:10px;cursor:pointer;padding:0;
}
.pb-burger span,.pb-burger::before,.pb-burger::after{
  content:"";display:block;width:18px;height:2px;background:var(--pb-primary);border-radius:2px;transition:transform .25s ease,opacity .2s ease;
}
.pb-burger[aria-expanded="true"]::before{transform:translateY(7px) rotate(45deg)}
.pb-burger[aria-expanded="true"] span{opacity:0}
.pb-burger[aria-expanded="true"]::after{transform:translateY(-7px) rotate(-45deg)}

/* 面包屑 */
.pb-breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0 0 18px;padding:0;font-size:13px;color:rgba(255,255,255,.72)}
.pb-breadcrumb a{color:rgba(255,255,255,.86)}
.pb-breadcrumb a:hover{color:#fff;text-decoration:underline}
.pb-breadcrumb li:not(:last-child)::after{content:"›";margin-left:8px;color:rgba(255,255,255,.5)}

/* 标题带 */
.pb-banner{
  position:relative;overflow:hidden;padding:58px 0 54px;color:#fff;
  background-color:#12546B;
  background-image:
    linear-gradient(115deg,rgba(18,84,107,.95) 0%,rgba(27,110,140,.88) 52%,rgba(63,154,120,.74) 100%),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
}
.pb-banner__deco{position:absolute;right:-40px;bottom:-30px;width:280px;height:280px;color:#fff;opacity:.1;pointer-events:none}
.pb-banner__inner{position:relative;z-index:1;max-width:820px}
.pb-banner h1{
  font-size:clamp(30px,4.4vw,46px);font-weight:700;line-height:1.22;letter-spacing:-.01em;color:#fff;
}
.pb-banner__lead{margin-top:16px;font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);max-width:640px}
.pb-banner__tags{margin-top:24px;display:flex;flex-wrap:wrap;gap:10px}
.pb-banner__tags .pb-badge{background:rgba(255,255,255,.16);color:#fff}
.pb-banner__tags .pb-badge--accent{background:rgba(240,138,60,.28);color:#FFE3CC}

/* 板块间距 */
.pb-section{padding:88px 0}
.pb-section--surface{background:var(--pb-surface);border-top:1px solid var(--pb-border);border-bottom:1px solid var(--pb-border)}
.pb-section__head{max-width:720px;margin-bottom:40px}
.pb-section__head h2{
  font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.01em;position:relative;padding-bottom:14px;
}
.pb-section__head h2::after{content:"";position:absolute;left:0;bottom:0;width:40px;height:3px;background:var(--pb-primary);border-radius:2px}
.pb-section__head p{margin-top:16px;color:var(--pb-text-2);font-size:15px}

/* 图文交错流 */
.pb-flow{display:flex;flex-direction:column}
.pb-flow__item{padding:44px 0}
.pb-flow__item--alt{background:var(--pb-bg-alt);border-top:1px solid var(--pb-border);border-bottom:1px solid var(--pb-border)}
.pb-flow__row{display:grid;grid-template-columns:55fr 45fr;gap:48px;align-items:center}
.pb-flow__item--rev .pb-flow__row{grid-template-columns:45fr 55fr}
.pb-flow__media{
  position:relative;border-radius:var(--pb-radius-card);overflow:hidden;
  border:1px solid var(--pb-border);box-shadow:var(--pb-shadow);background:var(--pb-bg-alt);aspect-ratio:16/10;
}
.pb-flow__media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.pb-flow__media:hover img{transform:scale(1.03)}
.pb-flow__index{
  position:absolute;left:14px;top:14px;z-index:1;height:26px;padding:0 12px;border-radius:var(--pb-radius-pill);
  display:inline-flex;align-items:center;background:rgba(18,84,107,.82);color:#fff;font-size:12px;font-weight:600;
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.pb-flow__text h2{font-size:clamp(22px,2.2vw,28px);font-weight:700;line-height:1.34;letter-spacing:-.01em}
.pb-flow__text p{margin-top:16px;color:var(--pb-text-2);font-size:15.5px;line-height:1.85}
.pb-points{list-style:none;margin:20px 0 0;padding:0;display:grid;gap:11px}
.pb-points li{position:relative;padding-left:28px;font-size:15px;color:var(--pb-text-2);line-height:1.7}
.pb-points li::before{
  content:"";position:absolute;left:0;top:5px;width:16px;height:16px;border-radius:5px;
  background:var(--pb-primary-50);border:1px solid rgba(27,110,140,.26);
}
.pb-points li::after{
  content:"";position:absolute;left:5px;top:10px;width:6px;height:3px;
  border-left:2px solid var(--pb-primary);border-bottom:2px solid var(--pb-primary);transform:rotate(-45deg);
}

/* FAQ */
.pb-faq{max-width:880px}
.pb-faq details{
  background:#fff;border:1px solid var(--pb-border);border-radius:var(--pb-radius-card);
  margin-bottom:14px;overflow:hidden;transition:box-shadow .25s ease,border-color .25s ease;
}
.pb-faq details:hover{border-color:rgba(27,110,140,.34)}
.pb-faq details[open]{box-shadow:var(--pb-shadow)}
.pb-faq summary{
  list-style:none;cursor:pointer;min-height:56px;display:flex;align-items:center;gap:14px;
  padding:0 22px;font-size:16px;font-weight:600;color:var(--pb-text);line-height:1.5;
}
.pb-faq summary::-webkit-details-marker{display:none}
.pb-faq summary:hover{color:var(--pb-primary)}
.pb-faq summary::after{
  content:"";margin-left:auto;flex:none;width:16px;height:16px;
  background:
    linear-gradient(var(--pb-primary),var(--pb-primary)) center/14px 2px no-repeat,
    linear-gradient(var(--pb-primary),var(--pb-primary)) center/2px 14px no-repeat;
  transition:transform .25s ease;
}
.pb-faq details[open] summary::after{
  background:linear-gradient(var(--pb-primary),var(--pb-primary)) center/14px 2px no-repeat;
  transform:rotate(180deg);
}
.pb-faq__body{
  border-left:3px solid var(--pb-primary);margin:0 22px 20px;padding:2px 0 2px 16px;
  color:var(--pb-text-2);font-size:15px;line-height:1.85;
}

/* CTA 条 */
.pb-cta{position:relative;overflow:hidden;background:var(--pb-primary-dark);color:#fff;padding:46px 0}
.pb-cta::before{
  content:"";position:absolute;right:-90px;top:-90px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(63,154,120,.42),rgba(63,154,120,0) 68%);
}
.pb-cta__inner{position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px}
.pb-cta h2{font-size:clamp(22px,2.4vw,28px);font-weight:700;color:#fff;line-height:1.35}
.pb-cta p{margin-top:10px;color:rgba(255,255,255,.78);font-size:15px;max-width:620px}
.pb-cta__side{display:flex;align-items:center;gap:18px;flex:none}
.pb-cta__round{
  width:64px;height:64px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.36);color:#fff;
  transition:transform .25s ease,background .25s ease;
}
.pb-cta__round:hover{background:rgba(255,255,255,.22);color:#fff;transform:translateY(-2px)}
.pb-cta .pb-btn--primary{background:#fff;color:var(--pb-primary-dark)}
.pb-cta .pb-btn--primary:hover{background:var(--pb-primary-50);color:var(--pb-primary-dark)}

/* 页脚 */
.pb-footer{background:var(--pb-primary-dark);color:rgba(255,255,255,.72);padding-top:64px;font-size:14px}
.pb-footer__grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.5fr;gap:36px;padding-bottom:44px}
.pb-footer h4{color:#fff;font-size:15px;font-weight:700;margin:0 0 16px}
.pb-footer .pb-logo{color:#fff}
.pb-footer .pb-logo__mark{color:#fff}
.pb-footer__tag{margin-top:14px;line-height:1.7;max-width:280px}
.pb-footer__status{
  display:inline-flex;align-items:center;gap:7px;margin-top:16px;height:26px;padding:0 12px;
  border-radius:var(--pb-radius-pill);background:rgba(255,255,255,.1);color:#fff;font-size:12px;
}
.pb-footer__status i{width:7px;height:7px;border-radius:50%;background:var(--pb-secondary);display:inline-block;animation:pb-pulse 1.5s ease-in-out infinite}
.pb-footer__list{list-style:none;margin:0;padding:0;display:grid;gap:12px}
.pb-footer__list a,.pb-footer__contact li a{color:rgba(255,255,255,.72)}
.pb-footer__list a:hover,.pb-footer__contact li a:hover{color:#fff;border-bottom:2px solid #fff;padding-bottom:2px}
.pb-footer__contact{list-style:none;margin:0 0 20px;padding:0;display:grid;gap:10px}
.pb-form__label{display:block;font-size:13px;color:rgba(255,255,255,.72);margin-bottom:8px}
.pb-form__row{display:flex;gap:10px}
.pb-form input[type="email"]{
  width:100%;height:48px;padding:0 14px;border-radius:var(--pb-radius-btn);
  border:1px solid rgba(255,255,255,.22);background:rgba(255,255,255,.08);color:#fff;font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.pb-form input[type="email"]::placeholder{color:rgba(255,255,255,.5)}
.pb-form input[type="email"]:focus{outline:none;border-color:#fff;box-shadow:0 0 0 3px rgba(255,255,255,.16)}
.pb-form__msg{margin-top:10px;font-size:13px;color:#fff;min-height:18px}
.pb-footer .pb-btn--primary{background:#fff;color:var(--pb-primary-dark);flex:none}
.pb-footer .pb-btn--primary:hover{background:var(--pb-primary-50);color:var(--pb-primary-dark)}
.pb-footer__bar{
  border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;flex-wrap:wrap;
  align-items:center;justify-content:space-between;gap:14px;font-size:13px;
}
.pb-footer__bar nav{display:flex;flex-wrap:wrap;gap:18px}
.pb-footer__bar a{color:rgba(255,255,255,.72)}
.pb-footer__bar a:hover{color:#fff;text-decoration:underline}

/* 响应式 */
@media (max-width:1199px){
  .pb-nav ul{gap:18px}
  .pb-countdown{display:none}
}
@media (max-width:1023px){
  .pb-burger{display:inline-flex}
  .pb-header__inner{gap:14px}
  .pb-nav{
    position:fixed;top:68px;right:0;width:min(320px,86vw);height:calc(100vh - 68px);
    background:#fff;border-left:1px solid var(--pb-border);box-shadow:var(--pb-shadow);
    padding:12px 20px 28px;overflow-y:auto;transform:translateX(105%);
    transition:transform .3s ease;z-index:49;
  }
  .pb-nav.is-open{transform:translateX(0)}
  .pb-nav ul{flex-direction:column;gap:0}
  .pb-nav a{display:block;padding:0;line-height:52px;font-size:16px;border-bottom:1px solid var(--pb-border)}
  .pb-nav a.is-active{font-weight:700}
  .pb-nav a.is-active::after{display:none}
  .pb-header__aside .pb-btn--sm{display:none}
  .pb-flow__item{padding:36px 0}
  .pb-flow__row,
  .pb-flow__item--rev .pb-flow__row{grid-template-columns:1fr;gap:24px}
  .pb-flow__media{order:-1}
  .pb-cta__inner{flex-direction:column;align-items:flex-start}
  .pb-cta__side{width:100%;justify-content:space-between}
  .pb-footer__grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:640px){
  .pb-section{padding:52px 0}
  .pb-banner{padding:42px 0 40px}
  .pb-banner__lead{font-size:15px}
  .pb-logo__text{font-size:15px}
  .pb-status{display:none}
  .pb-flow__text p,.pb-points li{font-size:15px}
  .pb-footer__grid{grid-template-columns:1fr;gap:28px}
  .pb-form__row{flex-direction:column}
  .pb-form input[type="email"],.pb-form .pb-btn{width:100%}
  .pb-faq summary{padding:14px 18px;min-height:56px;align-items:flex-start;font-size:15px}
  .pb-faq summary::after{margin-top:4px}
  .pb-faq__body{margin:0 18px 18px}
}

/* roulang page: article */
/* ============================================================
   设计变量
   ============================================================ */
:root{
  --pb-primary:#1B6E8C;
  --pb-primary-dark:#12546B;
  --pb-primary-50:#EAF3F6;
  --pb-secondary:#3F9A78;
  --pb-accent:#F08A3C;
  --pb-bg:#F5F8F7;
  --pb-bg-alt:#EDF4F3;
  --pb-surface:#FFFFFF;
  --pb-text:#16211F;
  --pb-text-2:#5C6E6C;
  --pb-text-3:#8A9A98;
  --pb-border:#E2EAE8;
  --pb-radius-card:14px;
  --pb-radius-btn:10px;
  --pb-radius-pill:999px;
  --pb-shadow-sm:0 1px 2px rgba(18,84,107,.06);
  --pb-shadow:0 1px 2px rgba(18,84,107,.06),0 12px 28px -12px rgba(18,84,107,.14);
  --pb-shadow-hover:0 2px 4px rgba(18,84,107,.08),0 20px 40px -16px rgba(18,84,107,.22);
  --pb-font:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
}

/* ============================================================
   基础 reset
   ============================================================ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  padding:0;
  background:var(--pb-bg);
  color:var(--pb-text);
  font-family:var(--pb-font);
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:0}
a{color:var(--pb-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--pb-primary-dark)}
h1,h2,h3,h4,h5,h6{margin:0;font-weight:700;color:var(--pb-text);line-height:1.35;letter-spacing:-.01em}
p{margin:0 0 16px}
ul,ol{margin:0;padding:0}
button{font-family:inherit}
input,textarea,select{font-family:inherit}
.pb-num{font-variant-numeric:tabular-nums}
.pb-container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}
@media (min-width:1024px){
  .pb-container{padding-left:32px;padding-right:32px}
}
.pb-section{padding:52px 0}
@media (min-width:1024px){
  .pb-section{padding:88px 0}
}
.pb-sr-only{
  position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;
  clip:rect(0,0,0,0);white-space:nowrap;border:0;
}

/* ============================================================
   页头导航
   ============================================================ */
.pb-header{
  position:sticky;
  top:0;
  z-index:50;
  background:#FFFFFF;
  border-bottom:1px solid var(--pb-border);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.pb-header.is-scrolled{
  background:rgba(255,255,255,.92);
  box-shadow:var(--pb-shadow-sm);
}
.pb-header__inner{
  display:flex;
  align-items:center;
  gap:20px;
  min-height:72px;
}
.pb-logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--pb-primary);
  font-size:17px;
  font-weight:700;
  white-space:nowrap;
  letter-spacing:.01em;
}
.pb-logo:hover{color:var(--pb-primary-dark)}
.pb-logo__mark{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:30px;
  height:30px;
  flex:0 0 30px;
}
.pb-logo__mark svg{width:30px;height:30px;display:block}
.pb-nav{margin-left:auto}
.pb-nav ul{
  display:flex;
  align-items:center;
  gap:2px;
  list-style:none;
}
.pb-nav a{
  display:inline-block;
  padding:12px 12px;
  font-size:15px;
  font-weight:500;
  color:var(--pb-text-2);
  border-bottom:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
  white-space:nowrap;
}
.pb-nav a:hover{color:var(--pb-primary)}
.pb-nav a.is-active{
  color:var(--pb-primary);
  font-weight:600;
  border-bottom-color:var(--pb-primary);
}
.pb-header__aside{
  display:flex;
  align-items:center;
  gap:12px;
  margin-left:8px;
}
.pb-status{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--pb-radius-pill);
  background:var(--pb-primary-50);
  color:var(--pb-text-2);
  font-size:13px;
  white-space:nowrap;
}
.pb-status i{
  width:8px;height:8px;border-radius:50%;
  background:var(--pb-secondary);
  animation:pbPulse 1.5s ease-in-out infinite;
}
@keyframes pbPulse{
  0%,100%{opacity:1;transform:scale(1)}
  50%{opacity:.45;transform:scale(.82)}
}
.pb-countdown{
  display:inline-flex;
  align-items:center;
  gap:2px;
  font-size:13px;
  font-weight:700;
  font-variant-numeric:tabular-nums;
}
.pb-countdown span{
  display:inline-block;
  min-width:26px;
  padding:3px 0;
  text-align:center;
  border-radius:6px;
  background:var(--pb-primary-50);
  color:var(--pb-accent);
}
.pb-countdown b{color:var(--pb-text-3);font-weight:600;padding:0 1px}

/* 按钮 */
.pb-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:13px 26px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border-radius:var(--pb-radius-btn);
  border:1.5px solid transparent;
  cursor:pointer;
  text-align:center;
  transition:background-color .25s ease,color .25s ease,border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.pb-btn--primary{background:var(--pb-primary);color:#FFFFFF;box-shadow:var(--pb-shadow-sm)}
.pb-btn--primary:hover{background:var(--pb-primary-dark);color:#FFFFFF;transform:translateY(-1px);box-shadow:var(--pb-shadow)}
.pb-btn--primary:active{transform:translateY(0);filter:brightness(.96)}
.pb-btn--outline{background:#FFFFFF;border-color:var(--pb-primary);color:var(--pb-primary)}
.pb-btn--outline:hover{background:var(--pb-primary-50);color:var(--pb-primary-dark);border-color:var(--pb-primary-dark)}
.pb-btn--ghost{background:transparent;border-color:var(--pb-border);color:var(--pb-text-2)}
.pb-btn--ghost:hover{border-color:var(--pb-primary);color:var(--pb-primary)}
.pb-btn--light{background:rgba(255,255,255,.14);border-color:rgba(255,255,255,.4);color:#FFFFFF}
.pb-btn--light:hover{background:#FFFFFF;color:var(--pb-primary-dark);border-color:#FFFFFF}
.pb-btn--sm{padding:9px 18px;font-size:14px;min-height:40px}
.pb-btn--block{width:100%}
.pb-btn:focus-visible{outline:2px solid var(--pb-primary);outline-offset:2px}
.pb-btn[disabled],.pb-btn.is-disabled{opacity:.5;cursor:not-allowed;transform:none}

/* 汉堡按钮 */
.pb-burger{
  display:none;
  position:relative;
  width:44px;height:44px;
  border:1px solid var(--pb-border);
  border-radius:10px;
  background:#FFFFFF;
  cursor:pointer;
  transition:border-color .2s ease;
}
.pb-burger:hover{border-color:var(--pb-primary)}
.pb-burger:focus-visible{outline:2px solid var(--pb-primary);outline-offset:2px}
.pb-burger span{
  position:absolute;
  left:50%;top:50%;
  width:18px;height:2px;
  margin:-1px 0 0 -9px;
  background:var(--pb-text);
  border-radius:2px;
}
.pb-burger span::before,
.pb-burger span::after{
  content:"";
  position:absolute;
  left:0;
  width:18px;height:2px;
  background:var(--pb-text);
  border-radius:2px;
  transition:transform .25s ease;
}
.pb-burger span::before{top:-6px}
.pb-burger span::after{top:6px}

/* ============================================================
   面包屑
   ============================================================ */
.pb-crumbs{
  background:#FFFFFF;
  border-bottom:1px solid var(--pb-border);
}
.pb-crumbs__inner{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  padding:16px 0;
  font-size:13px;
  line-height:1.6;
  color:var(--pb-text-2);
}
.pb-crumbs__inner a{color:var(--pb-text-2)}
.pb-crumbs__inner a:hover{color:var(--pb-primary)}
.pb-crumbs__sep{color:var(--pb-text-3)}
.pb-crumbs__now{color:var(--pb-text-3)}

/* ============================================================
   文章标题区
   ============================================================ */
.pb-article-head{
  background:var(--pb-bg-alt);
  border-bottom:1px solid var(--pb-border);
  padding:44px 0 36px;
}
@media (min-width:1024px){
  .pb-article-head{padding:56px 0 44px}
}
.pb-article-head__h1{
  max-width:900px;
  margin:0 0 20px;
  font-size:clamp(26px,3.4vw,34px);
  font-weight:700;
  line-height:1.32;
  letter-spacing:-.01em;
}
.pb-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px 18px;
  font-size:13.5px;
  color:var(--pb-text-2);
}
.pb-meta__item{display:inline-flex;align-items:center;gap:6px}
.pb-meta__item i{color:var(--pb-text-3);font-size:13px}
.pb-pill{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 12px;
  border-radius:var(--pb-radius-pill);
  font-size:12px;
  font-weight:600;
  background:var(--pb-primary-50);
  color:var(--pb-primary);
}
.pb-pill--success{background:rgba(63,154,120,.12);color:var(--pb-secondary)}
.pb-pill--accent{background:rgba(240,138,60,.14);color:#B75F1C}

/* ============================================================
   正文阅读区
   ============================================================ */
.pb-article-wrap{background:#FFFFFF}
.pb-article{
  max-width:780px;
  margin:0 auto;
}
.pb-richtext{
  font-size:16px;
  line-height:1.9;
  color:var(--pb-text);
  overflow-wrap:break-word;
  word-break:break-word;
}
.pb-richtext > *:first-child{margin-top:0}
.pb-richtext p{margin:0 0 20px;line-height:1.9}
.pb-richtext h2{
  position:relative;
  margin:40px 0 18px;
  padding-left:14px;
  font-size:26px;
  font-weight:700;
  line-height:1.42;
}
.pb-richtext h2::before{
  content:"";
  position:absolute;
  left:0;top:.22em;bottom:.22em;
  width:3px;
  border-radius:2px;
  background:var(--pb-primary);
}
.pb-richtext h3{margin:32px 0 14px;font-size:21px;font-weight:600;line-height:1.5}
.pb-richtext h4{margin:26px 0 12px;font-size:17.5px;font-weight:600}
.pb-richtext ul,.pb-richtext ol{margin:0 0 20px;padding-left:22px}
.pb-richtext li{margin-bottom:10px;line-height:1.8}
.pb-richtext li::marker{color:var(--pb-primary)}
.pb-richtext blockquote{
  margin:24px 0;
  padding:16px 20px;
  border-left:4px solid var(--pb-primary);
  border-radius:0 10px 10px 0;
  background:var(--pb-primary-50);
  color:var(--pb-text-2);
  font-style:normal;
}
.pb-richtext blockquote p:last-child{margin-bottom:0}
.pb-richtext img{
  width:100%;
  margin:24px 0 8px;
  border-radius:12px;
  border:1px solid var(--pb-border);
}
.pb-richtext figure{margin:24px 0}
.pb-richtext figcaption{
  margin-top:8px;
  font-size:13px;
  color:var(--pb-text-3);
  text-align:center;
}
.pb-richtext a{
  color:var(--pb-primary);
  border-bottom:1px solid rgba(27,110,140,.32);
}
.pb-richtext a:hover{border-bottom-color:var(--pb-primary);color:var(--pb-primary-dark)}
.pb-richtext table{
  width:100%;
  margin:24px 0;
  border-collapse:collapse;
  font-size:14.5px;
}
.pb-richtext thead th{
  background:var(--pb-bg-alt);
  color:var(--pb-text-2);
  font-weight:600;
  text-align:left;
}
.pb-richtext th,.pb-richtext td{
  padding:11px 14px;
  border-bottom:1px solid var(--pb-border);
  text-align:left;
}
.pb-richtext tbody tr:nth-child(even){background:#FAFCFB}
.pb-richtext hr{
  margin:32px 0;
  border:0;
  border-top:1px solid var(--pb-border);
}
.pb-richtext code{
  padding:2px 6px;
  border-radius:6px;
  background:var(--pb-bg-alt);
  font-size:14px;
  color:var(--pb-primary-dark);
}
.pb-richtext strong{font-weight:700}

/* 空态 */
.pb-empty{
  padding:64px 24px;
  text-align:center;
  background:#FFFFFF;
  border:1px solid var(--pb-border);
  border-radius:var(--pb-radius-card);
  box-shadow:var(--pb-shadow-sm);
}
.pb-empty__icon{
  width:48px;height:48px;
  margin:0 auto 18px;
  color:var(--pb-text-3);
}
.pb-empty__icon svg{width:48px;height:48px;display:block}
.pb-empty h2{font-size:20px;margin-bottom:10px}
.pb-empty p{margin:0 auto 24px;max-width:420px;color:var(--pb-text-2);font-size:14.5px}

/* ============================================================
   相关推荐
   ============================================================ */
.pb-related{
  margin-top:56px;
  padding-top:44px;
  border-top:1px solid var(--pb-border);
}
.pb-related__title{
  position:relative;
  margin:0 0 24px;
  padding-left:14px;
  font-size:22px;
  font-weight:700;
}
.pb-related__title::before{
  content:"";
  position:absolute;
  left:0;top:.24em;bottom:.24em;
  width:3px;
  border-radius:2px;
  background:var(--pb-primary);
}
.pb-related__grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.pb-card{
  display:flex;
  flex-direction:column;
  background:var(--pb-surface);
  border:1px solid var(--pb-border);
  border-radius:var(--pb-radius-card);
  overflow:hidden;
  box-shadow:var(--pb-shadow-sm);
  color:inherit;
  transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
}
.pb-card:hover{
  transform:translateY(-3px);
  box-shadow:var(--pb-shadow-hover);
  border-color:#D3E2E0;
}
.pb-card__media{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--pb-bg-alt);
  border-bottom:1px solid var(--pb-border);
}
.pb-card__media img{width:100%;height:100%;object-fit:cover}
.pb-card__body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1}
.pb-card__title{
  margin:0 0 8px;
  font-size:16.5px;
  font-weight:600;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .2s ease;
}
.pb-card:hover .pb-card__title{color:var(--pb-primary)}
.pb-card__desc{
  margin:0 0 14px;
  font-size:14px;
  line-height:1.7;
  color:var(--pb-text-2);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.pb-card__meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  font-size:12.5px;
  color:var(--pb-text-3);
}
.pb-card__meta span{display:inline-flex;align-items:center;gap:6px}

/* 返回入口 */
.pb-backbar{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:36px;
  padding-top:28px;
  border-top:1px solid var(--pb-border);
}
.pb-backbar__hint{font-size:14px;color:var(--pb-text-2);margin:0}

/* ============================================================
   底部 CTA 条
   ============================================================ */
.pb-cta-band{
  background:var(--pb-primary-dark);
  color:#FFFFFF;
}
.pb-cta-band__inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  min-height:148px;
  padding:34px 0;
}
.pb-cta-band h2{
  margin:0 0 8px;
  color:#FFFFFF;
  font-size:clamp(20px,2.4vw,26px);
  font-weight:700;
}
.pb-cta-band p{
  margin:0;
  max-width:640px;
  font-size:15px;
  line-height:1.7;
  color:rgba(255,255,255,.78);
}
.pb-cta-band__side{display:flex;align-items:center;gap:16px;flex-shrink:0}
.pb-cta-band__circle{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:56px;height:56px;
  border-radius:50%;
  background:var(--pb-accent);
  color:#FFFFFF;
  font-size:18px;
  transition:transform .25s ease,box-shadow .25s ease;
}
.pb-cta-band__circle:hover{transform:translateX(5px);color:#FFFFFF;box-shadow:0 10px 24px -10px rgba(240,138,60,.9)}
.pb-cta-band__circle:focus-visible{outline:2px solid #FFFFFF;outline-offset:3px}

/* ============================================================
   页脚
   ============================================================ */
.pb-footer{
  background:var(--pb-primary-dark);
  color:rgba(255,255,255,.72);
  padding-top:64px;
}
.pb-footer__grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.45fr;
  gap:40px;
  padding-bottom:48px;
}
.pb-footer h4{
  margin:0 0 18px;
  color:#FFFFFF;
  font-size:15px;
  font-weight:600;
}
.pb-footer .pb-logo{color:#FFFFFF}
.pb-footer .pb-logo:hover{color:#FFFFFF}
.pb-footer__tag{
  margin:16px 0 14px;
  max-width:290px;
  font-size:14px;
  line-height:1.75;
  color:rgba(255,255,255,.72);
}
.pb-footer__status{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:5px 12px;
  border-radius:var(--pb-radius-pill);
  background:rgba(255,255,255,.1);
  color:#FFFFFF;
  font-size:12.5px;
}
.pb-footer__status i{
  width:8px;height:8px;border-radius:50%;
  background:var(--pb-secondary);
  animation:pbPulse 1.5s ease-in-out infinite;
}
.pb-footer__list{list-style:none;margin:0;padding:0}
.pb-footer__list li{margin-bottom:12px}
.pb-footer__list a{
  display:inline-block;
  padding-bottom:2px;
  font-size:14px;
  color:rgba(255,255,255,.72);
  border-bottom:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.pb-footer__list a:hover{color:#FFFFFF;border-bottom-color:#FFFFFF}
.pb-footer__contact{list-style:none;margin:0 0 20px;padding:0;font-size:14px}
.pb-footer__contact li{margin-bottom:10px;color:rgba(255,255,255,.72)}
.pb-footer__bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  padding:20px 0;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:rgba(255,255,255,.6);
}
.pb-footer__bottom p{margin:0}
.pb-footer__bottom ul{display:flex;flex-wrap:wrap;gap:20px;list-style:none}
.pb-footer__bottom a{color:rgba(255,255,255,.72)}
.pb-footer__bottom a:hover{color:#FFFFFF;text-decoration:underline;text-underline-offset:3px}

/* 表单 */
.pb-form{margin-top:6px}
.pb-form__label{
  display:block;
  margin-bottom:8px;
  font-size:13px;
  color:rgba(255,255,255,.7);
}
.pb-form__row{display:flex;gap:8px}
.pb-form input[type="email"]{
  flex:1 1 auto;
  min-width:0;
  height:48px;
  padding:0 14px;
  border-radius:var(--pb-radius-btn);
  border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.08);
  color:#FFFFFF;
  font-size:14px;
  transition:border-color .2s ease,box-shadow .2s ease;
}
.pb-form input[type="email"]::placeholder{color:rgba(255,255,255,.45)}
.pb-form input[type="email"]:focus{
  outline:none;
  border-color:var(--pb-primary-50);
  box-shadow:0 0 0 3px rgba(234,243,246,.18);
}
.pb-form input[type="email"].is-error{border-color:var(--pb-accent)}
.pb-form__hint{margin:10px 0 0;font-size:12.5px;color:rgba(255,255,255,.55)}
.pb-form__msg{margin:8px 0 0;font-size:12.5px;color:var(--pb-accent);min-height:16px}

/* ============================================================
   响应式
   ============================================================ */
@media (max-width:1024px){
  .pb-burger{display:block}
  .pb-status{display:none}
  .pb-countdown{display:none}
  .pb-nav{
    position:fixed;
    top:0;right:0;
    z-index:60;
    width:min(320px,86vw);
    height:100vh;
    padding:88px 20px 28px;
    background:#FFFFFF;
    box-shadow:-14px 0 44px rgba(18,84,107,.18);
    transform:translateX(105%);
    transition:transform .3s ease;
    overflow-y:auto;
    margin-left:0;
  }
  .pb-nav.is-open{transform:translateX(0)}
  .pb-nav ul{flex-direction:column;align-items:stretch;gap:0}
  .pb-nav a{
    padding:0 12px;
    line-height:52px;
    font-size:16px;
    border-bottom:1px solid var(--pb-border);
    border-left:3px solid transparent;
    border-radius:0;
  }
  .pb-nav a.is-active{
    border-bottom-color:var(--pb-border);
    border-left-color:var(--pb-primary);
  }
  .pb-header__aside{margin-left:auto}
  .pb-related__grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pb-footer__grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
  .pb-cta-band__inner{
    flex-direction:column;
    align-items:flex-start;
    justify-content:center;
    min-height:200px;
    padding:34px 0;
  }
}
@media (max-width:768px){
  .pb-header__inner{min-height:64px;gap:12px}
  .pb-logo__text{font-size:15.5px}
  .pb-logo__mark,.pb-logo__mark svg{width:26px;height:26px;flex-basis:26px}
  .pb-header__aside .pb-btn--sm{padding:8px 14px;font-size:13px}
  .pb-article-head{padding:32px 0 26px}
  .pb-related__grid{grid-template-columns:minmax(0,1fr)}
  .pb-footer__grid{grid-template-columns:minmax(0,1fr);gap:30px}
  .pb-footer{padding-top:48px}
  .pb-form__row{flex-direction:column}
  .pb-form__row .pb-btn{width:100%}
  .pb-backbar{align-items:flex-start;flex-direction:column}
  .pb-backbar .pb-btn{width:100%}
  .pb-richtext h2{font-size:22px}
  .pb-richtext h3{font-size:19px}
}
@media (max-width:520px){
  .pb-container{padding-left:16px;padding-right:16px}
  .pb-cta-band__side{gap:12px}
  .pb-cta-band__circle{width:48px;height:48px}
  .pb-crumbs__inner{font-size:12.5px}
}

/* roulang page: category2 */
:root{
  --pb-primary:#1B6E8C;
  --pb-primary-dark:#12546B;
  --pb-primary-50:#EAF3F6;
  --pb-secondary:#3F9A78;
  --pb-accent:#F08A3C;
  --pb-bg:#F5F8F7;
  --pb-bg-alt:#EDF4F3;
  --pb-surface:#FFFFFF;
  --pb-text:#16211F;
  --pb-text-2:#5C6E6C;
  --pb-text-3:#8A9A98;
  --pb-border:#E2EAE8;
  --pb-radius-card:14px;
  --pb-radius-btn:10px;
  --pb-radius-pill:999px;
  --pb-shadow-sm:0 1px 2px rgba(18,84,107,.06);
  --pb-shadow:0 1px 2px rgba(18,84,107,.06),0 12px 28px -12px rgba(18,84,107,.14);
  --pb-shadow-hover:0 2px 4px rgba(18,84,107,.08),0 20px 40px -16px rgba(18,84,107,.22);
  --pb-gap:24px;
  --pb-section-y:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  font-size:16px;line-height:1.8;color:var(--pb-text);
  background:var(--pb-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border-radius:12px;}
a{color:var(--pb-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--pb-primary-dark);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;}
p{margin:0;}
button{font-family:inherit;cursor:pointer;background:none;border:0;padding:0;}
input,textarea,select{font:inherit;}
:focus-visible{outline:2px solid var(--pb-primary);outline-offset:2px;}
.pb-num{font-variant-numeric:tabular-nums;}

/* ============ 容器 ============ */
.pb-container{max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:1024px){.pb-container{padding:0 32px;}}

/* ============ 头部 ============ */
.pb-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.98);
  border-bottom:1px solid var(--pb-border);
  transition:box-shadow .25s ease,background .25s ease;
}
.pb-header.is-scrolled{background:rgba(255,255,255,.92);box-shadow:var(--pb-shadow-sm);}
.pb-header__inner{display:flex;align-items:center;gap:20px;min-height:72px;}
.pb-logo{display:inline-flex;align-items:center;gap:10px;color:var(--pb-text);flex:0 0 auto;}
.pb-logo__mark{width:30px;height:30px;color:var(--pb-primary);display:inline-flex;align-items:center;justify-content:center;}
.pb-logo__mark svg{width:30px;height:30px;}
.pb-logo__text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}
.pb-logo:hover .pb-logo__mark{color:var(--pb-secondary);}

.pb-nav{margin-left:auto;}
.pb-nav ul{display:flex;align-items:center;gap:26px;}
.pb-nav ul li a{
  display:inline-block;padding:26px 0 24px;
  font-size:15px;font-weight:600;color:var(--pb-text-2);
  border-bottom:2px solid transparent;
  transition:color .2s ease,border-color .2s ease;
}
.pb-nav ul li a:hover{color:var(--pb-primary);}
.pb-nav ul li a.is-active{color:var(--pb-primary);border-bottom-color:var(--pb-primary);}

.pb-header__aside{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.pb-status{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--pb-text-2);
  background:var(--pb-primary-50);border-radius:var(--pb-radius-pill);
  padding:5px 12px;white-space:nowrap;
}
.pb-status i{
  width:8px;height:8px;border-radius:50%;background:var(--pb-secondary);display:inline-block;
  animation:pbBreath 1.5s ease-in-out infinite;
}
@keyframes pbBreath{0%,100%{opacity:.45;transform:scale(.85);}50%{opacity:1;transform:scale(1);}}

.pb-countdown{
  display:inline-flex;align-items:center;gap:4px;
  font-size:13px;font-weight:700;color:var(--pb-accent);
}
.pb-countdown span{
  display:inline-block;min-width:28px;text-align:center;
  background:var(--pb-primary-50);border-radius:6px;padding:3px 4px;
}
.pb-countdown b{color:var(--pb-text-3);font-weight:700;}

.pb-burger{
  display:none;width:44px;height:44px;border-radius:var(--pb-radius-btn);
  border:1px solid var(--pb-border);align-items:center;justify-content:center;
}
.pb-burger span{display:block;width:18px;height:2px;background:var(--pb-text);position:relative;}
.pb-burger span::before,.pb-burger span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--pb-text);
}
.pb-burger span::before{top:-6px;}
.pb-burger span::after{top:6px;}

/* ============ 按钮 ============ */
.pb-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--pb-radius-btn);
  font-size:15px;font-weight:600;line-height:1.2;
  border:1.5px solid transparent;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease,transform .2s ease;
}
.pb-btn--sm{padding:9px 16px;font-size:14px;border-radius:9px;}
.pb-btn--primary{background:var(--pb-primary);color:#fff;box-shadow:var(--pb-shadow-sm);}
.pb-btn--primary:hover{background:var(--pb-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--pb-shadow);}
.pb-btn--primary:active{transform:translateY(0);}
.pb-btn--ghost{background:#fff;color:var(--pb-primary);border-color:var(--pb-primary);}
.pb-btn--ghost:hover{background:var(--pb-primary-50);color:var(--pb-primary-dark);}
.pb-btn--line{background:transparent;color:var(--pb-text-2);border-color:var(--pb-border);}
.pb-btn--line:hover{border-color:var(--pb-primary);color:var(--pb-primary);}
.pb-btn:disabled,.pb-btn[aria-disabled="true"]{opacity:.5;cursor:not-allowed;transform:none;}

/* ============ 徽章 ============ */
.pb-badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:var(--pb-radius-pill);font-size:12px;font-weight:600;
  background:var(--pb-primary-50);color:var(--pb-primary);white-space:nowrap;
}
.pb-badge--ok{background:rgba(63,154,120,.12);color:#2C7A5E;}
.pb-badge--hot{background:rgba(240,138,60,.14);color:#B96225;}

/* ============ 面包屑 ============ */
.pb-crumb{background:#fff;border-bottom:1px solid var(--pb-border);}
.pb-crumb__inner{display:flex;align-items:center;gap:6px;font-size:13px;color:var(--pb-text-2);padding:14px 0;flex-wrap:wrap;}
.pb-crumb__inner a{color:var(--pb-text-2);}
.pb-crumb__inner a:hover{color:var(--pb-primary);}
.pb-crumb__inner span{color:var(--pb-text-3);}

/* ============ Hero ============ */
.pb-hero{
  background:linear-gradient(180deg,var(--pb-bg-alt) 0%,var(--pb-bg) 100%);
  padding:64px 0 68px;
  position:relative;overflow:hidden;
}
.pb-hero::after{
  content:"";position:absolute;right:-120px;top:-60px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(63,154,120,.12),transparent 68%);
  pointer-events:none;
}
.pb-hero__grid{display:grid;grid-template-columns:1fr;gap:40px;align-items:center;position:relative;z-index:1;}
@media (min-width:1024px){.pb-hero__grid{grid-template-columns:1.05fr .95fr;gap:56px;}}
.pb-hero__badge{margin-bottom:18px;}
.pb-hero h1{
  font-size:clamp(30px,4.4vw,46px);line-height:1.22;letter-spacing:-.01em;
  margin-bottom:18px;
}
.pb-hero__lead{font-size:17px;color:var(--pb-text-2);max-width:560px;margin-bottom:16px;}
.pb-hero__points{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:28px;}
.pb-hero__points span{
  display:inline-flex;align-items:center;gap:7px;
  font-size:13px;color:var(--pb-text-2);background:#fff;
  border:1px solid var(--pb-border);border-radius:var(--pb-radius-pill);
  padding:6px 14px;
}
.pb-hero__points span::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--pb-secondary);
}
.pb-hero__actions{display:flex;flex-wrap:wrap;gap:14px;}
.pb-hero__figure{
  background:#fff;border:1px solid var(--pb-border);border-radius:var(--pb-radius-card);
  padding:14px;box-shadow:var(--pb-shadow);
}
.pb-hero__figure img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:12px;}
.pb-hero__figcap{font-size:13px;color:var(--pb-text-3);padding:12px 4px 2px;}
.pb-hero__stats{
  display:grid;grid-template-columns:repeat(3,1fr);gap:12px;
  margin-top:22px;
}
.pb-hero__stats div{
  background:#fff;border:1px solid var(--pb-border);border-radius:var(--pb-radius-card);
  padding:16px 14px;box-shadow:var(--pb-shadow-sm);text-align:left;
}
.pb-hero__stats strong{
  display:block;font-size:22px;color:var(--pb-primary);font-weight:700;
  line-height:1.3;font-variant-numeric:tabular-nums;
}
.pb-hero__stats em{font-style:normal;font-size:13px;color:var(--pb-text-3);}

/* ============ 主体布局 ============ */
.pb-section{padding:var(--pb-section-y) 0;}
.pb-section--white{background:#fff;}
.pb-section--alt{background:var(--pb-bg-alt);}
.pb-section__head{max-width:720px;margin-bottom:44px;}
.pb-section__head h2{
  font-size:clamp(24px,2.6vw,32px);position:relative;padding-bottom:16px;margin-bottom:14px;
}
.pb-section__head h2::after{
  content:"";position:absolute;left:0;bottom:0;width:40px;height:3px;
  background:var(--pb-primary);border-radius:2px;
}
.pb-section__head p{color:var(--pb-text-2);font-size:15px;}

.pb-layout{display:grid;grid-template-columns:1fr;gap:36px;}
@media (min-width:1024px){.pb-layout{grid-template-columns:280px 1fr;gap:48px;align-items:start;}}

/* 左侧目录 */
.pb-toc{
  background:#fff;border:1px solid var(--pb-border);border-radius:var(--pb-radius-card);
  padding:22px;box-shadow:var(--pb-shadow-sm);
}
@media (min-width:1024px){.pb-toc{position:sticky;top:96px;}}
.pb-toc__title{font-size:14px;font-weight:700;color:var(--pb-text);margin-bottom:14px;letter-spacing:.02em;}
.pb-toc__list li+li{margin-top:2px;}
.pb-toc__link{
  display:block;padding:10px 12px 10px 14px;
  font-size:14px;color:var(--pb-text-2);
  border-left:3px solid transparent;border-radius:0 8px 8px 0;
  transition:color .2s ease,background .2s ease,border-color .2s ease;
}
.pb-toc__link:hover{color:var(--pb-primary);background:var(--pb-primary-50);}
.pb-toc__link.is-active{
  color:var(--pb-primary);border-left-color:var(--pb-primary);
  background:var(--pb-primary-50);font-weight:600;
}
.pb-toc__note{
  margin-top:18px;padding-top:18px;border-top:1px solid var(--pb-border);
  font-size:13px;color:var(--pb-text-3);line-height:1.7;
}

/* 右侧内容块 */
.pb-block{
  background:#fff;border:1px solid var(--pb-border);border-radius:var(--pb-radius-card);
  padding:28px;box-shadow:var(--pb-shadow-sm);
  transition:box-shadow .25s ease,transform .25s ease;
  scroll-margin-top:100px;
}
.pb-block+.pb-block{margin-top:24px;}
.pb-block:hover{box-shadow:var(--pb-shadow);transform:translateY(-3px);}
.pb-block__head{display:flex;align-items:flex-start;gap:14px;margin-bottom:20px;flex-wrap:wrap;}
.pb-block__no{
  flex:0 0 auto;width:34px;height:34px;border-radius:10px;
  background:var(--pb-primary-50);color:var(--pb-primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
}
.pb-block h3{font-size:21px;line-height:1.4;}
.pb-block__sub{font-size:13px;color:var(--pb-text-3);margin-top:4px;}

.pb-deflist{border-top:1px solid var(--pb-border);}
.pb-deflist__row{
  display:grid;grid-template-columns:1fr;gap:4px;
  padding:16px 0;border-bottom:1px solid var(--pb-border);
}
@media (min-width:640px){
  .pb-deflist__row{grid-template-columns:190px 1fr;gap:20px;align-items:start;}
}
.pb-deflist__row dt{font-size:14px;font-weight:600;color:var(--pb-text-2);}
.pb-deflist__row dd{margin:0;font-size:15px;color:var(--pb-text);}

.pb-inlineimg{margin:22px 0 4px;}
.pb-inlineimg img{width:100%;aspect-ratio:16/10;object-fit:cover;border:1px solid var(--pb-border);}
.pb-inlineimg figcaption{font-size:13px;color:var(--pb-text-3);text-align:center;margin-top:10px;}

.pb-block__cta{margin-top:24px;display:flex;flex-wrap:wrap;gap:12px;align-items:center;}

/* 场景标签区 */
.pb-scene{display:grid;grid-template-columns:1fr;gap:20px;}
@media (min-width:640px){.pb-scene{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.pb-scene{grid-template-columns:repeat(4,1fr);}}
.pb-scene__card{
  background:#fff;border:1px solid var(--pb-border);border-radius:var(--pb-radius-card);
  padding:22px;box-shadow:var(--pb-shadow-sm);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.pb-scene__card:hover{box-shadow:var(--pb-shadow-hover);transform:translateY(-3px);border-color:rgba(27,110,140,.28);}
.pb-scene__card h3{font-size:17px;margin:14px 0 8px;}
.pb-scene__card p{font-size:14px;color:var(--pb-text-2);}
.pb-scene__ico{
  width:40px;height:40px;border-radius:12px;background:var(--pb-primary-50);
  display:inline-flex;align-items:center;justify-content:center;color:var(--pb-primary);
}

/* FAQ */
.pb-faq{max-width:860px;margin:0 auto;}
.pb-faq__item{
  background:#fff;border:1px solid var(--pb-border);border-radius:var(--pb-radius-card);
  box-shadow:var(--pb-shadow-sm);overflow:hidden;
}
.pb-faq__item+.pb-faq__item{margin-top:14px;}
.pb-faq__q{
  width:100%;height:56px;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:0 22px;text-align:left;font-size:16px;font-weight:600;color:var(--pb-text);
  transition:color .2s ease,background .2s ease;
}
.pb-faq__q:hover{color:var(--pb-primary);background:#FBFDFC;}
.pb-faq__q .pb-faq__ico{
  flex:0 0 auto;width:18px;height:18px;position:relative;color:var(--pb-primary);
}
.pb-faq__q .pb-faq__ico::before,
.pb-faq__q .pb-faq__ico::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;transition:transform .25s ease,opacity .25s ease;
}
.pb-faq__q .pb-faq__ico::before{left:0;top:8px;width:18px;height:2px;}
.pb-faq__q .pb-faq__ico::after{top:0;left:8px;width:2px;height:18px;}
.pb-faq__item.is-open .pb-faq__ico::after{transform:scaleY(0);opacity:0;}
.pb-faq__a{
  max-height:0;overflow:hidden;transition:max-height .3s ease;
  border-left:3px solid var(--pb-primary);margin:0 22px;
}
.pb-faq__a p{padding:0 0 18px 16px;font-size:15px;color:var(--pb-text-2);}
.pb-faq__item.is-open .pb-faq__a{padding-top:0;}

/* CTA 通栏 */
.pb-cta{
  background:var(--pb-primary-dark);color:#fff;position:relative;overflow:hidden;
}
.pb-cta::before{
  content:"";position:absolute;right:-80px;bottom:-120px;width:340px;height:340px;
  background:radial-gradient(circle,rgba(240,138,60,.22),transparent 70%);
}
.pb-cta__inner{
  position:relative;z-index:1;
  display:flex;flex-direction:column;gap:22px;
  padding:56px 0;align-items:flex-start;
}
@media (min-width:1024px){
  .pb-cta__inner{flex-direction:row;align-items:center;justify-content:space-between;gap:40px;}
}
.pb-cta h2{font-size:clamp(22px,2.4vw,28px);color:#fff;margin-bottom:10px;}
.pb-cta p{color:rgba(255,255,255,.76);font-size:15px;max-width:620px;}
.pb-cta__actions{display:flex;gap:14px;flex-wrap:wrap;}
.pb-cta .pb-btn--primary{background:var(--pb-accent);color:#3A1E06;}
.pb-cta .pb-btn--primary:hover{background:#E07C2C;color:#3A1E06;}
.pb-cta .pb-btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.5);}
.pb-cta .pb-btn--ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}

/* 表单 */
.pb-form__label{display:block;font-size:13px;color:var(--pb-text-3);margin-bottom:8px;}
.pb-form__row{display:flex;gap:10px;flex-wrap:wrap;}
.pb-form input[type="email"]{
  flex:1 1 180px;height:48px;padding:0 14px;border-radius:var(--pb-radius-btn);
  border:1px solid var(--pb-border);background:#fff;color:var(--pb-text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.pb-form input[type="email"]::placeholder{color:var(--pb-text-3);}
.pb-form input[type="email"]:focus{
  outline:none;border-color:var(--pb-primary);box-shadow:0 0 0 3px rgba(27,110,140,.12);
}
.pb-form__msg{font-size:13px;color:var(--pb-text-3);margin-top:10px;}
.pb-form__msg.is-error{color:#B96225;}
.pb-form__msg.is-ok{color:#2C7A5E;}

/* 页脚 */
.pb-footer{background:var(--pb-primary-dark);color:rgba(255,255,255,.72);padding:64px 0 0;}
.pb-footer__grid{display:grid;grid-template-columns:1fr;gap:36px;padding-bottom:44px;}
@media (min-width:640px){.pb-footer__grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.pb-footer__grid{grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:40px;}}
.pb-footer .pb-logo{color:#fff;}
.pb-footer .pb-logo__text{color:#fff;}
.pb-footer .pb-logo__mark{color:#8FD3BE;}
.pb-footer__tag{font-size:14px;color:rgba(255,255,255,.72);margin:16px 0 18px;max-width:260px;}
.pb-footer__status{
  display:inline-flex;align-items:center;gap:7px;font-size:13px;
  background:rgba(255,255,255,.1);border-radius:var(--pb-radius-pill);padding:5px 12px;color:#fff;
}
.pb-footer__status i{width:8px;height:8px;border-radius:50%;background:var(--pb-secondary);display:inline-block;}
.pb-footer h4{font-size:15px;color:#fff;margin-bottom:18px;}
.pb-footer__list li+li{margin-top:10px;}
.pb-footer__list a,.pb-footer__contact li{
  font-size:14px;color:rgba(255,255,255,.72);
}
.pb-footer__list a:hover{color:#fff;border-bottom:2px solid #fff;}
.pb-footer__contact li+li{margin-top:10px;}
.pb-footer__bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0;display:flex;flex-wrap:wrap;gap:10px 24px;
  align-items:center;justify-content:space-between;font-size:13px;color:rgba(255,255,255,.6);
}
.pb-footer__bottom a{color:rgba(255,255,255,.6);}
.pb-footer__bottom a:hover{color:#fff;border-bottom:2px solid #fff;}

/* 移动端导航 */
@media (max-width:1023px){
  .pb-nav{
    position:fixed;top:0;right:0;height:100%;width:min(80vw,330px);
    background:#fff;padding:88px 24px 32px;margin:0;
    transform:translateX(102%);transition:transform .3s ease;
    box-shadow:-12px 0 34px rgba(18,84,107,.14);overflow-y:auto;
    border-left:1px solid var(--pb-border);
  }
  .pb-nav.is-open{transform:translateX(0);}
  .pb-nav ul{display:block;}
  .pb-nav ul li+li{border-top:1px solid var(--pb-border);}
  .pb-nav ul li a{display:block;height:52px;line-height:52px;padding:0;font-size:16px;border:0;}
  .pb-nav ul li a.is-active{color:var(--pb-primary);}
  .pb-header__aside .pb-countdown{display:none;}
  .pb-header__aside .pb-status{display:none;}
  .pb-header__aside .pb-btn{display:none;}
  .pb-burger{display:inline-flex;}
}
@media (max-width:639px){
  :root{--pb-section-y:52px;}
  .pb-hero{padding:44px 0 46px;}
  .pb-hero__stats{grid-template-columns:1fr;gap:10px;}
  .pb-block{padding:22px;}
  .pb-scene__card{padding:20px;}
  .pb-faq__q{padding:0 16px;font-size:15px;}
  .pb-faq__a{margin:0 16px;}
  .pb-faq__a p{padding-left:12px;}
  .pb-cta__inner{padding:44px 0;}
  .pb-btn{width:100%;}
  .pb-cta__actions{width:100%;}
  .pb-hero__actions{width:100%;}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --pb-primary:#1B6E8C;
  --pb-primary-dark:#12546B;
  --pb-primary-50:#EAF3F6;
  --pb-secondary:#3F9A78;
  --pb-accent:#F08A3C;
  --pb-bg:#F5F8F7;
  --pb-bg-alt:#EDF4F3;
  --pb-surface:#FFFFFF;
  --pb-text:#16211F;
  --pb-text-2:#5C6E6C;
  --pb-text-3:#8A9A98;
  --pb-border:#E2EAE8;
  --pb-radius-card:14px;
  --pb-radius-btn:10px;
  --pb-radius-pill:999px;
  --pb-shadow-sm:0 1px 2px rgba(18,84,107,.06);
  --pb-shadow:0 1px 2px rgba(18,84,107,.06),0 12px 28px -12px rgba(18,84,107,.14);
  --pb-shadow-hover:0 2px 4px rgba(18,84,107,.08),0 20px 40px -16px rgba(18,84,107,.22);
  --pb-container:1200px;
  --pb-num:tabular-nums;
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:-apple-system,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans CJK SC",sans-serif;
  font-size:16px;
  line-height:1.8;
  color:var(--pb-text);
  background:var(--pb-bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;border:1px solid var(--pb-border);}
a{color:var(--pb-primary);text-decoration:none;transition:color .2s ease,border-color .2s ease;}
a:hover{color:var(--pb-primary-dark);}
ul,ol{margin:0;padding:0;}
h1,h2,h3,h4,p{margin:0;}
button,input{font-family:inherit;font-size:inherit;}
a:focus-visible,button:focus-visible,input:focus-visible,summary:focus-visible{
  outline:2px solid var(--pb-primary);
  outline-offset:2px;
  border-radius:4px;
}
.pb-num{font-variant-numeric:tabular-nums;}

/* ============ 容器 ============ */
.pb-container{
  width:100%;
  max-width:var(--pb-container);
  margin:0 auto;
  padding-left:20px;
  padding-right:20px;
}

/* ============ 按钮 ============ */
.pb-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 26px;
  min-height:46px;
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border-radius:var(--pb-radius-btn);
  border:1.5px solid transparent;
  cursor:pointer;
  transition:background-color .22s ease,color .22s ease,border-color .22s ease,transform .22s ease,box-shadow .22s ease,filter .22s ease;
  box-shadow:var(--pb-shadow-sm);
}
.pb-btn--primary{background:var(--pb-primary);color:#fff;border-color:var(--pb-primary);}
.pb-btn--primary:hover{background:var(--pb-primary-dark);border-color:var(--pb-primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--pb-shadow);}
.pb-btn--primary:active{transform:translateY(0);filter:brightness(.96);}
.pb-btn--ghost{background:var(--pb-surface);color:var(--pb-primary);border-color:var(--pb-primary);}
.pb-btn--ghost:hover{background:var(--pb-primary-50);color:var(--pb-primary-dark);border-color:var(--pb-primary-dark);transform:translateY(-1px);}
.pb-btn--line{background:transparent;color:var(--pb-text);border-color:var(--pb-border);box-shadow:none;}
.pb-btn--line:hover{border-color:var(--pb-primary);color:var(--pb-primary);}
.pb-btn--sm{padding:10px 18px;min-height:40px;font-size:14px;}
.pb-btn--block{width:100%;}
.pb-btn__circle{
  width:46px;height:46px;padding:0;border-radius:50%;
  background:var(--pb-accent);border-color:var(--pb-accent);color:#fff;
}
.pb-btn__circle:hover{background:#dc7729;border-color:#dc7729;color:#fff;}

/* ============ 徽章 / 标签 ============ */
.pb-badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 12px;
  font-size:12px;font-weight:600;line-height:1;
  border-radius:var(--pb-radius-pill);
  background:var(--pb-primary-50);color:var(--pb-primary);
}
.pb-badge--success{background:rgba(63,154,120,.12);color:#2F7A5E;}
.pb-badge--accent{background:rgba(240,138,60,.14);color:#B45F16;}
.pb-badge--big{height:32px;padding:0 16px;font-size:13px;}

/* ============ 页头 ============ */
.pb-header{
  position:sticky;top:0;z-index:50;
  background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--pb-border);
  transition:box-shadow .25s ease,background-color .25s ease;
}
.pb-header.is-scrolled{box-shadow:var(--pb-shadow-sm);}
.pb-header__inner{
  display:flex;align-items:center;gap:24px;
  min-height:72px;
}
.pb-logo{display:inline-flex;align-items:center;gap:10px;color:var(--pb-primary-dark);}
.pb-logo:hover{color:var(--pb-primary);}
.pb-logo__mark{width:30px;height:30px;display:inline-flex;color:var(--pb-primary);}
.pb-logo__mark svg{width:30px;height:30px;}
.pb-logo__text{font-size:17px;font-weight:700;letter-spacing:-.01em;white-space:nowrap;}
.pb-nav{margin-left:auto;}
.pb-nav ul{display:flex;align-items:center;gap:22px;list-style:none;}
.pb-nav a{
  display:inline-block;
  padding:6px 2px;
  font-size:15px;font-weight:500;color:var(--pb-text-2);
  border-bottom:2px solid transparent;
}
.pb-nav a:hover{color:var(--pb-primary);}
.pb-nav a.is-active{color:var(--pb-primary);border-bottom-color:var(--pb-primary);}
.pb-header__aside{display:flex;align-items:center;gap:14px;margin-left:6px;}
.pb-status{
  display:inline-flex;align-items:center;gap:7px;
  font-size:12px;font-weight:600;color:var(--pb-secondary);
  padding:6px 12px;border-radius:var(--pb-radius-pill);background:rgba(63,154,120,.1);
  white-space:nowrap;
}
.pb-status i{width:8px;height:8px;border-radius:50%;background:var(--pb-secondary);animation:pbBreath 1.5s ease-in-out infinite;}
@keyframes pbBreath{0%,100%{opacity:1;transform:scale(1);}50%{opacity:.45;transform:scale(.82);}}
.pb-countdown{
  display:inline-flex;align-items:center;gap:3px;
  font-size:13px;font-weight:600;color:var(--pb-accent);
}
.pb-countdown span{
  display:inline-grid;place-items:center;
  min-width:26px;height:24px;padding:0 4px;
  background:var(--pb-primary-50);border-radius:6px;
  font-variant-numeric:tabular-nums;
}
.pb-countdown b{color:var(--pb-text-3);font-weight:600;}
.pb-burger{
  display:none;
  width:44px;height:44px;padding:0;
  background:var(--pb-surface);border:1px solid var(--pb-border);border-radius:10px;
  cursor:pointer;position:relative;
}
.pb-burger span,
.pb-burger span::before,
.pb-burger span::after{
  position:absolute;left:50%;width:18px;height:2px;background:var(--pb-text);
  border-radius:2px;transform:translateX(-50%);transition:transform .25s ease,opacity .25s ease;
}
.pb-burger span{top:50%;margin-top:-1px;}
.pb-burger span::before{content:"";top:-6px;left:0;transform:none;}
.pb-burger span::after{content:"";top:6px;left:0;transform:none;}
.pb-burger.is-open span{background:transparent;}
.pb-burger.is-open span::before{transform:rotate(45deg);top:0;}
.pb-burger.is-open span::after{transform:rotate(-45deg);top:0;}

/* ============ 面包屑 ============ */
.pb-crumb{padding:20px 0 0;font-size:13px;color:var(--pb-text-2);}
.pb-crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;}
.pb-crumb li{display:inline-flex;align-items:center;gap:8px;}
.pb-crumb li+li::before{content:"›";color:var(--pb-text-3);}
.pb-crumb a{color:var(--pb-text-2);}
.pb-crumb a:hover{color:var(--pb-primary);}
.pb-crumb [aria-current]{color:var(--pb-text);}

/* ============ Hero ============ */
.pb-hero{padding:26px 0 60px;}
.pb-hero__grid{display:grid;grid-template-columns:minmax(0,1fr);gap:36px;align-items:center;}
.pb-hero__title{
  font-size:clamp(30px,4.4vw,46px);
  font-weight:700;line-height:1.22;letter-spacing:-.01em;
  margin:18px 0 0;
}
.pb-hero__lead{margin-top:18px;font-size:17px;color:var(--pb-text-2);max-width:44em;}
.pb-hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.pb-hero__figure{margin:0;border-radius:var(--pb-radius-card);overflow:hidden;box-shadow:var(--pb-shadow);position:relative;}
.pb-hero__figure img{aspect-ratio:16/10;width:100%;object-fit:cover;border:none;border-radius:0;}
.pb-hero__figure figcaption{position:absolute;left:16px;bottom:16px;background:rgba(22,33,31,.62);color:#fff;font-size:12px;padding:6px 12px;border-radius:var(--pb-radius-pill);}
.pb-stats{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:1px;background:var(--pb-border);
  border:1px solid var(--pb-border);border-radius:var(--pb-radius-card);
  overflow:hidden;margin-top:38px;
}
.pb-stats__item{background:var(--pb-surface);padding:18px 20px;}
.pb-stats__num{font-size:26px;font-weight:700;color:var(--pb-primary);font-variant-numeric:tabular-nums;letter-spacing:-.01em;}
.pb-stats__num em{font-size:14px;font-style:normal;color:var(--pb-text-2);margin-left:4px;font-weight:600;}
.pb-stats__label{margin-top:4px;font-size:13px;color:var(--pb-text-2);}

/* ============ 板块通用 ============ */
.pb-section{padding:52px 0;}
.pb-section--alt{background:var(--pb-bg-alt);}
.pb-section--white{background:var(--pb-surface);}
.pb-section--tight{padding:44px 0;}
.pb-head{max-width:760px;margin-bottom:36px;}
.pb-head__title{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.3;position:relative;padding-bottom:14px;}
.pb-head__title::after{content:"";position:absolute;left:0;bottom:0;width:40px;height:3px;border-radius:2px;background:var(--pb-primary);}
.pb-head__desc{margin-top:16px;color:var(--pb-text-2);font-size:16px;}

/* ============ 时间轴 ============ */
.pb-timeline{list-style:none;position:relative;padding-left:0;}
.pb-timeline::before{content:"";position:absolute;left:19px;top:14px;bottom:14px;width:2px;background:var(--pb-border);}
.pb-timeline__item{position:relative;display:grid;grid-template-columns:40px minmax(0,1fr);gap:20px;padding-bottom:28px;}
.pb-timeline__item:last-child{padding-bottom:0;}
.pb-timeline__node{
  width:40px;height:40px;border-radius:50%;
  display:grid;place-items:center;
  background:var(--pb-surface);border:2px solid var(--pb-border);
  color:var(--pb-text-3);font-weight:700;font-size:15px;
  font-variant-numeric:tabular-nums;position:relative;z-index:1;
}
.pb-timeline__item.is-done .pb-timeline__node{background:var(--pb-secondary);border-color:var(--pb-secondary);color:#fff;}
.pb-timeline__item.is-current .pb-timeline__node{background:var(--pb-accent);border-color:var(--pb-accent);color:#fff;animation:pbPulse 1.5s ease-in-out infinite;}
@keyframes pbPulse{0%,100%{box-shadow:0 0 0 0 rgba(240,138,60,.45);}50%{box-shadow:0 0 0 9px rgba(240,138,60,0);}}
.pb-timeline__body{
  background:var(--pb-bg-alt);
  border:1px solid var(--pb-border);
  border-radius:var(--pb-radius-card);
  padding:22px 24px;
  transition:box-shadow .25s ease,transform .25s ease;
}
.pb-section--alt .pb-timeline__body{background:var(--pb-surface);}
.pb-timeline__body:hover{box-shadow:var(--pb-shadow);transform:translateY(-2px);}
.pb-timeline__item.is-current .pb-timeline__body{border-color:rgba(240,138,60,.5);}
.pb-timeline__title{margin-top:12px;font-size:20px;font-weight:600;}
.pb-timeline__text{margin-top:10px;color:var(--pb-text-2);font-size:15px;}
.pb-timeline__meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:16px;}
.pb-timeline__figure{margin:18px 0 0;border-radius:12px;overflow:hidden;}
.pb-timeline__figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:12px;}

/* ============ 功能分组卡片 ============ */
.pb-feature__grid{margin-top:4px;}
.pb-feature__stack{display:grid;gap:20px;height:100%;}
.pb-card{
  background:var(--pb-surface);
  border:1px solid var(--pb-border);
  border-radius:var(--pb-radius-card);
  box-shadow:var(--pb-shadow-sm);
  padding:22px;
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.pb-card:hover{box-shadow:var(--pb-shadow-hover);transform:translateY(-3px);}
.pb-card__title{margin-top:12px;font-size:19px;font-weight:600;}
.pb-card__text{margin-top:8px;color:var(--pb-text-2);font-size:15px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}
.pb-card--lg{padding:0;overflow:hidden;height:100%;display:flex;flex-direction:column;}
.pb-card--lg .pb-card__media{overflow:hidden;}
.pb-card--lg .pb-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;border:none;border-radius:0;}
.pb-card--lg .pb-card__body{padding:24px;}
.pb-card--sm{height:100%;}
.pb-card__tag{margin-bottom:2px;}
.pb-card--lg .pb-card__title{font-size:22px;margin-top:14px;}
.pb-card--lg .pb-card__text{-webkit-line-clamp:2;}

/* ============ 功能对照行 ============ */
.pb-compare{
  background:var(--pb-surface);
  border:1px solid var(--pb-border);
  border-radius:var(--pb-radius-card);
  overflow:hidden;
}
.pb-compare__row{
  display:grid;grid-template-columns:220px minmax(0,1fr);
  gap:24px;padding:20px 24px;
  border-bottom:1px solid var(--pb-border);
  transition:background-color .2s ease;
}
.pb-compare__row:last-child{border-bottom:none;}
.pb-compare__row:hover{background:var(--pb-primary-50);}
.pb-compare__label{color:var(--pb-text-2);font-weight:600;font-size:15px;}
.pb-compare__value{color:var(--pb-text);font-size:15px;}

/* ============ 指标带 ============ */
.pb-metrics{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.pb-metric{
  background:var(--pb-surface);
  border:1px solid var(--pb-border);
  border-radius:var(--pb-radius-card);
  padding:24px 22px;
  box-shadow:var(--pb-shadow-sm);
  transition:box-shadow .25s ease,transform .25s ease;
}
.pb-metric:hover{box-shadow:var(--pb-shadow);transform:translateY(-3px);}
.pb-metric__num{font-size:30px;font-weight:700;color:var(--pb-primary);font-variant-numeric:tabular-nums;line-height:1.1;}
.pb-metric__num em{font-size:14px;font-style:normal;color:var(--pb-text-2);margin-left:6px;font-weight:600;}
.pb-metric__label{margin-top:8px;font-size:14px;color:var(--pb-text-2);}

/* ============ 进度块 ============ */
.pb-progress__bar{height:12px;border-radius:var(--pb-radius-pill);background:var(--pb-bg-alt);position:relative;overflow:hidden;}
.pb-progress__fill{height:100%;border-radius:var(--pb-radius-pill);background:linear-gradient(90deg,var(--pb-primary),var(--pb-secondary));width:72%;position:relative;}
.pb-progress__dot{
  position:absolute;top:50%;right:-6px;transform:translateY(-50%);
  width:18px;height:18px;border-radius:50%;background:var(--pb-accent);
  border:3px solid #fff;box-shadow:0 1px 4px rgba(18,84,107,.3);
}
.pb-progress__legend{display:flex;justify-content:space-between;margin-top:12px;font-size:13px;color:var(--pb-text-2);}
.pb-progress__legend b{color:var(--pb-primary);font-variant-numeric:tabular-nums;}
.pb-task{display:flex;align-items:center;gap:14px;padding:16px 0;border-bottom:1px dashed var(--pb-border);}
.pb-task:last-child{border-bottom:none;}
.pb-task__icon{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;
  background:var(--pb-primary-50);color:var(--pb-primary);
  display:grid;place-items:center;
}
.pb-task__icon svg{width:20px;height:20px;}
.pb-task__body{flex:1 1 auto;min-width:0;}
.pb-task__name{font-size:15px;font-weight:600;}
.pb-task__mini{margin-top:8px;height:6px;border-radius:var(--pb-radius-pill);background:var(--pb-bg-alt);overflow:hidden;}
.pb-task__mini i{display:block;height:100%;background:var(--pb-secondary);border-radius:var(--pb-radius-pill);}

/* ============ FAQ ============ */
.pb-faq{max-width:900px;}
.pb-faq__item{
  background:var(--pb-surface);
  border:1px solid var(--pb-border);
  border-radius:var(--pb-radius-card);
  margin-bottom:14px;
  overflow:hidden;
  transition:box-shadow .22s ease,border-color .22s ease;
}
.pb-faq__item:hover{box-shadow:var(--pb-shadow-sm);}
.pb-faq__item.is-open{border-color:rgba(27,110,140,.4);box-shadow:var(--pb-shadow-sm);}
.pb-faq__q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;min-height:56px;padding:14px 22px;
  background:transparent;border:none;cursor:pointer;text-align:left;
  font-size:16px;font-weight:600;color:var(--pb-text);line-height:1.6;
}
.pb-faq__q:hover{color:var(--pb-primary);}
.pb-faq__icon{flex:0 0 22px;width:22px;height:22px;position:relative;color:var(--pb-primary);}
.pb-faq__icon::before,.pb-faq__icon::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .25s ease,opacity .25s ease;
}
.pb-faq__icon::before{width:14px;height:2px;}
.pb-faq__icon::after{width:2px;height:14px;}
.pb-faq__item.is-open .pb-faq__icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.pb-faq__a{max-height:0;overflow:hidden;transition:max-height .3s ease;}
.pb-faq__a-inner{
  padding:0 22px 20px 22px;
  border-left:3px solid var(--pb-primary);
  margin-left:22px;padding-left:16px;
  color:var(--pb-text-2);font-size:15px;
}

/* ============ CTA 条 ============ */
.pb-cta{background:var(--pb-primary-dark);color:#fff;border-radius:0;}
.pb-cta__inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  min-height:148px;padding:28px 0;
}
.pb-cta__title{font-size:clamp(22px,2.4vw,28px);font-weight:700;line-height:1.35;}
.pb-cta__text{margin-top:10px;color:rgba(255,255,255,.75);font-size:15px;max-width:52em;}
.pb-cta__actions{display:flex;align-items:center;gap:14px;flex:0 0 auto;}
.pb-cta .pb-btn--ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.65);}
.pb-cta .pb-btn--ghost:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}

/* ============ 页脚 ============ */
.pb-footer{background:var(--pb-primary-dark);color:#fff;padding:52px 0 0;margin-top:0;}
.pb-footer__grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.3fr;gap:32px;padding-bottom:40px;}
.pb-footer .pb-logo{color:#fff;}
.pb-footer .pb-logo__mark{color:rgba(255,255,255,.9);}
.pb-footer .pb-logo:hover{color:#fff;}
.pb-footer__tag{margin-top:14px;color:rgba(255,255,255,.72);font-size:14px;max-width:24em;}
.pb-footer__status{
  display:inline-flex;align-items:center;gap:7px;margin-top:16px;
  font-size:12px;font-weight:600;color:#fff;
  background:rgba(255,255,255,.14);padding:6px 12px;border-radius:var(--pb-radius-pill);
}
.pb-footer__status i{width:8px;height:8px;border-radius:50%;background:var(--pb-secondary);animation:pbBreath 1.5s ease-in-out infinite;}
.pb-footer h4{font-size:15px;font-weight:700;margin-bottom:16px;color:#fff;}
.pb-footer__list,.pb-footer__contact{list-style:none;display:grid;gap:10px;}
.pb-footer__list a{color:rgba(255,255,255,.72);font-size:14px;border-bottom:2px solid transparent;padding-bottom:2px;}
.pb-footer__list a:hover{color:#fff;border-bottom-color:#fff;}
.pb-footer__contact li{color:rgba(255,255,255,.72);font-size:14px;}
.pb-form{margin-top:16px;}
.pb-form__label{display:block;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:8px;}
.pb-form__row{display:flex;gap:10px;}
.pb-form input{
  flex:1 1 auto;min-width:0;height:48px;padding:0 14px;
  border-radius:var(--pb-radius-btn);
  border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.08);color:#fff;font-size:15px;
  transition:border-color .2s ease,box-shadow .2s ease,background-color .2s ease;
}
.pb-form input::placeholder{color:rgba(255,255,255,.5);}
.pb-form input:focus{
  outline:none;border-color:#fff;background:rgba(255,255,255,.14);
  box-shadow:0 0 0 3px rgba(255,255,255,.16);
}
.pb-form__hint{margin-top:10px;font-size:12px;color:rgba(255,255,255,.6);}
.pb-form__msg{margin-top:8px;font-size:13px;color:var(--pb-accent);min-height:18px;}
.pb-footer__bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,.16);
  padding:20px 0 26px;
  font-size:13px;color:rgba(255,255,255,.72);
}

/* ============ 空态 ============ */
.pb-empty{
  display:grid;place-items:center;gap:12px;text-align:center;
  padding:44px 24px;border:1px dashed var(--pb-border);border-radius:var(--pb-radius-card);
  background:var(--pb-surface);color:var(--pb-text-2);
}
.pb-empty svg{width:48px;height:48px;color:var(--pb-text-3);}

/* ============ 工具类 ============ */
.pb-mt-0{margin-top:0;}
.pb-mt-16{margin-top:16px;}
.pb-mt-24{margin-top:24px;}
.pb-text-center{text-align:center;}
.pb-hide{display:none !important;}

/* ============ 响应式 ============ */
@media (min-width:1024px){
  .pb-container{padding-left:32px;padding-right:32px;}
  .pb-section{padding:88px 0;}
  .pb-section--tight{padding:64px 0;}
  .pb-hero{padding:36px 0 76px;}
  .pb-hero__grid{grid-template-columns:minmax(0,1fr) minmax(0,1fr);}
}
@media (max-width:1023px){
  .pb-nav{
    position:fixed;top:0;right:0;
    width:min(320px,86vw);height:100vh;
    background:var(--pb-surface);
    box-shadow:-24px 0 44px -24px rgba(18,84,107,.35);
    transform:translateX(105%);
    transition:transform .28s ease;
    padding:88px 20px 24px;
    z-index:60;overflow-y:auto;
  }
  .pb-nav.is-open{transform:translateX(0);}
  .pb-nav ul{flex-direction:column;align-items:stretch;gap:0;}
  .pb-nav a{
    display:block;line-height:52px;font-size:17px;
    border-bottom:1px solid var(--pb-border);
    border-bottom-width:1px;border-left:2px solid transparent;
    padding-left:10px;
  }
  .pb-nav a.is-active{border-left-color:var(--pb-primary);border-bottom-color:var(--pb-border);}
  .pb-burger{display:block;}
  .pb-header__aside .pb-countdown{display:none;}
  .pb-header__aside .pb-status{display:none;}
  .pb-footer__grid{grid-template-columns:1fr 1fr;gap:28px;}
  .pb-metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
  .pb-compare__row{grid-template-columns:180px minmax(0,1fr);}
}
@media (max-width:767px){
  .pb-hero__lead{font-size:16px;}
  .pb-stats{grid-template-columns:1fr;}
  .pb-cta__inner{flex-direction:column;align-items:flex-start;min-height:0;padding:34px 0;}
  .pb-cta__actions{width:100%;}
  .pb-cta__actions .pb-btn{flex:1 1 auto;}
  .pb-compare__row{grid-template-columns:1fr;gap:6px;padding:18px;}
  .pb-compare__label{font-size:14px;}
  .pb-footer__grid{grid-template-columns:1fr;}
  .pb-form__row{flex-direction:column;}
  .pb-form input{height:48px;}
}
@media (max-width:519px){
  .pb-header__aside .pb-btn--sm{display:none;}
  .pb-timeline::before{left:15px;}
  .pb-timeline__item{grid-template-columns:32px minmax(0,1fr);gap:14px;}
  .pb-timeline__node{width:32px;height:32px;font-size:13px;}
  .pb-timeline__body{padding:18px 18px;}
  .pb-hero__actions .pb-btn{width:100%;}
  .pb-metrics{grid-template-columns:1fr;}
}