/* roulang page: index */
:root{
    --brand:#1D5C8F;
    --brand-deep:#123F63;
    --brand-soft:#E7F0F8;
    --accent:#F0A22E;
    --ink:#0F1C2A;
    --ink-2:#4A5A6A;
    --ink-3:#7A8A99;
    --line:#DDE5EC;
    --bg:#F6F9FC;
    --surface:#FFFFFF;
    --ok:#1F9E6E;
    --radius-card:16px;
    --radius-btn:10px;
    --shadow-card:0 1px 2px rgba(15,28,42,.05);
    --shadow-hover:0 8px 24px -12px rgba(15,28,42,.20);
    --shadow-dock:0 8px 24px -12px rgba(15,28,42,.20);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    color:var(--ink);
    background:var(--bg);
    text-align:left;
    overflow-x:hidden;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input{font:inherit;color:inherit;}
  button{cursor:pointer;background:none;border:none;}
  h1,h2,h3,h4,p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  .pg-container{
    max-width:1200px;
    margin:0 auto;
    padding:0 32px;
    width:100%;
  }
  .pg-num{font-variant-numeric:tabular-nums;}
  /* ---------- Dock 导航 ---------- */
  .pg-header{
    position:sticky;
    top:0;
    z-index:60;
    padding:16px 0 8px;
    transition:padding 220ms ease;
  }
  .pg-dock{
    max-width:1080px;
    margin:0 auto;
    height:64px;
    display:flex;
    align-items:center;
    gap:18px;
    padding:0 18px;
    background:rgba(255,255,255,.92);
    backdrop-filter:saturate(160%) blur(8px);
    border:1px solid var(--line);
    border-radius:999px;
    box-shadow:var(--shadow-dock);
    transition:height 220ms ease, box-shadow 220ms ease;
  }
  .pg-header.is-scrolled .pg-dock{
    height:56px;
    box-shadow:0 12px 30px -14px rgba(15,28,42,.30);
  }
  .pg-logo{
    display:flex;
    align-items:center;
    gap:9px;
    font-weight:700;
    font-size:16px;
    color:var(--brand-deep);
    white-space:nowrap;
    letter-spacing:.01em;
  }
  .pg-logo-mark{
    width:30px;height:30px;
    border-radius:9px;
    background:var(--brand);
    display:flex;align-items:center;justify-content:center;
    color:#fff;flex:none;
  }
  .pg-nav{
    display:flex;
    align-items:center;
    gap:4px;
    margin-left:6px;
  }
  .pg-nav a{
    font-size:14px;
    color:var(--ink-2);
    padding:7px 13px;
    border-radius:999px;
    transition:background 180ms ease,color 180ms ease;
    white-space:nowrap;
  }
  .pg-nav a:hover{background:var(--brand-soft);color:var(--brand);}
  .pg-nav a.active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
  .pg-dock-right{
    margin-left:auto;
    display:flex;
    align-items:center;
    gap:10px;
  }
  .pg-search{
    display:flex;
    align-items:center;
    gap:7px;
    background:var(--bg);
    border:1px solid var(--line);
    border-radius:999px;
    padding:7px 14px;
    transition:border-color 180ms ease, box-shadow 180ms ease;
  }
  .pg-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px rgba(29,92,143,.18);}
  .pg-search input{
    border:none;background:transparent;outline:none;
    width:112px;font-size:14px;color:var(--ink);
  }
  .pg-search input::placeholder{color:var(--ink-3);}
  .pg-btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 22px;
    border-radius:var(--radius-btn);
    font-size:15px;
    font-weight:600;
    transition:background 180ms ease,border-color 180ms ease,color 180ms ease,transform 180ms ease,box-shadow 180ms ease;
    border:1px solid transparent;
  }
  .pg-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
  .pg-btn-primary{background:var(--brand);color:#fff;}
  .pg-btn-primary:hover{background:var(--brand-deep);}
  .pg-btn-primary:active{transform:translateY(1px);}
  .pg-btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);}
  .pg-btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
  .pg-btn-sm{padding:9px 18px;font-size:14px;}
  .pg-btn-lg{padding:14px 28px;font-size:16px;}
  .pg-btn-light{background:#fff;color:var(--brand-deep);}
  .pg-btn-light:hover{background:var(--brand-soft);}
  .pg-burger{
    display:none;
    width:40px;height:40px;border-radius:10px;
    align-items:center;justify-content:center;
    border:1px solid var(--line);background:#fff;color:var(--ink);
  }
  .pg-drawer{
    max-width:1080px;
    margin:10px auto 0;
    background:#fff;
    border:1px solid var(--line);
    border-radius:16px;
    box-shadow:var(--shadow-hover);
    padding:12px;
    display:none;
    flex-direction:column;
    gap:4px;
  }
  .pg-drawer.is-open{display:flex;}
  .pg-drawer a{
    padding:11px 14px;border-radius:10px;font-size:15px;color:var(--ink-2);
  }
  .pg-drawer a:hover,.pg-drawer a.active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
  .pg-drawer .pg-search{margin:6px 0 2px;}
  .pg-drawer .pg-search input{width:100%;}
  /* ---------- Hero ---------- */
  .pg-hero{padding:48px 0 0;}
  .pg-hero-grid{
    display:grid;
    grid-template-columns:7fr 5fr;
    gap:48px;
    align-items:center;
  }
  .pg-eyebrow{
    display:inline-flex;align-items:center;gap:8px;
    background:var(--brand-soft);
    color:var(--brand);
    font-size:13px;
    letter-spacing:.08em;
    padding:6px 14px;
    border-radius:999px;
    font-weight:600;
  }
  .pg-h1{
    font-size:40px;
    line-height:1.25;
    font-weight:700;
    color:var(--brand-deep);
    margin:18px 0 0;
    letter-spacing:-.01em;
  }
  .pg-hero-sub{
    font-size:17px;
    color:var(--ink-2);
    margin-top:18px;
    max-width:520px;
  }
  .pg-hero-actions{
    display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;
  }
  .pg-hero-note{
    font-size:13px;color:var(--ink-3);margin-top:16px;
  }
  .pg-hero-media{position:relative;}
  .pg-hero-media img{
    width:100%;
    aspect-ratio:4/3;
    object-fit:cover;
    border-radius:20px;
    border:1px solid var(--line);
    background:var(--brand-soft);
  }
  .pg-hero-badge{
    position:absolute;
    left:-14px;
    bottom:22px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:14px;
    box-shadow:var(--shadow-hover);
    padding:14px 18px;
    display:flex;
    align-items:center;
    gap:12px;
  }
  .pg-hero-badge strong{font-size:20px;color:var(--brand);display:block;line-height:1.2;}
  .pg-hero-badge span{font-size:12px;color:var(--ink-3);}
  .pg-trust{
    margin-top:56px;
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:16px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    padding:20px 24px;
    box-shadow:var(--shadow-card);
  }
  .pg-trust-item{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--ink-2);}
  .pg-trust-item svg{color:var(--brand);flex:none;}
  /* ---------- 区块通用 ---------- */
  .pg-section{padding:96px 0 0;}
  .pg-sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:32px;}
  .pg-sec-tag{
    display:inline-block;
    font-size:13px;
    letter-spacing:.08em;
    color:var(--brand);
    font-weight:600;
    margin-bottom:10px;
  }
  .pg-sec-title{
    display:flex;align-items:flex-start;gap:12px;
  }
  .pg-sec-title::before{
    content:"";
    width:3px;height:24px;margin-top:7px;
    background:var(--brand);border-radius:2px;flex:none;
  }
  .pg-h2{font-size:30px;line-height:1.3;font-weight:700;color:var(--brand-deep);}
  .pg-sec-desc{font-size:15px;color:var(--ink-2);margin-top:10px;max-width:640px;}
  .pg-link{
    color:var(--brand);font-size:14px;font-weight:600;
    display:inline-flex;align-items:center;gap:6px;
    border-bottom:1px solid transparent;
    transition:border-color 180ms ease,gap 180ms ease;
  }
  .pg-link:hover{border-bottom-color:var(--brand);gap:10px;}
  /* 卖点 2x2 */
  .pg-feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
  .pg-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:var(--radius-card);
    box-shadow:var(--shadow-card);
    transition:box-shadow 180ms ease, transform 180ms ease, border-color 180ms ease;
  }
  .pg-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#CDDAE5;}
  .pg-feature{padding:26px;display:flex;gap:18px;}
  .pg-icon-box{
    width:46px;height:46px;border-radius:12px;
    background:var(--brand-soft);color:var(--brand);
    display:flex;align-items:center;justify-content:center;flex:none;
  }
  .pg-feature h3{font-size:18px;font-weight:600;color:var(--brand-deep);}
  .pg-feature p{font-size:14px;color:var(--ink-2);margin-top:8px;}
  /* 流程 */
  .pg-demo-grid{display:grid;grid-template-columns:5fr 7fr;gap:40px;align-items:start;}
  .pg-step{
    display:flex;gap:16px;
    padding:18px 20px;
    background:#fff;
    border:1px solid var(--line);
    border-radius:14px;
    margin-bottom:14px;
    transition:border-color 180ms ease,box-shadow 180ms ease;
  }
  .pg-step:hover{border-color:var(--brand);box-shadow:var(--shadow-card);}
  .pg-step-no{
    width:28px;height:28px;border-radius:999px;
    background:var(--brand);color:#fff;
    font-size:13px;font-weight:600;
    display:flex;align-items:center;justify-content:center;flex:none;
    font-variant-numeric:tabular-nums;
  }
  .pg-step h3{font-size:16px;font-weight:600;color:var(--ink);}
  .pg-step p{font-size:14px;color:var(--ink-2);margin-top:6px;}
  .pg-shot{
    position:relative;
    border-radius:var(--radius-card);
    overflow:hidden;
    border:1px solid var(--line);
    background:var(--brand-soft);
  }
  .pg-shot img{width:100%;aspect-ratio:16/10;object-fit:cover;}
  .pg-shot-caption{
    font-size:13px;color:var(--ink-3);
    padding:12px 16px;
    background:#fff;
    border-top:1px solid var(--line);
  }
  /* 证据 */
  .pg-proof-stats{
    display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
    background:var(--brand-deep);
    border-radius:var(--radius-card);
    padding:32px 24px;
    color:#fff;
  }
  .pg-proof-stats .num{font-size:28px;font-weight:700;font-variant-numeric:tabular-nums;}
  .pg-proof-stats .lbl{font-size:13px;color:rgba(255,255,255,.72);margin-top:6px;}
  .pg-review-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:24px;}
  .pg-review{padding:24px;display:flex;gap:16px;}
  .pg-avatar{
    width:44px;height:44px;border-radius:999px;
    background:var(--brand-soft);color:var(--brand);
    display:flex;align-items:center;justify-content:center;
    font-size:15px;font-weight:600;flex:none;
  }
  .pg-review p{font-size:15px;color:var(--ink-2);}
  .pg-review .who{font-size:13px;color:var(--ink-3);margin-top:10px;}
  /* 最新信息卡片 */
  .pg-news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
  .pg-post{
    display:flex;flex-direction:column;
    overflow:hidden;
  }
  .pg-post-cover{aspect-ratio:16/9;width:100%;object-fit:cover;background:var(--brand-soft);}
  .pg-post-body{padding:20px;display:flex;flex-direction:column;flex:1;}
  .pg-pill{
    display:inline-block;
    background:var(--brand-soft);color:var(--brand);
    font-size:12px;font-weight:600;
    padding:4px 10px;border-radius:999px;
  }
  .pg-post h3{
    font-size:17px;font-weight:600;color:var(--ink);
    margin-top:12px;line-height:1.5;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .pg-post p{
    font-size:14px;color:var(--ink-2);margin-top:10px;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .pg-post-foot{
    margin-top:auto;padding-top:16px;
    display:flex;align-items:center;justify-content:space-between;
    font-size:13px;color:var(--ink-3);
    border-top:1px solid var(--line);
  }
  .pg-post-foot .more{color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:5px;transition:gap 180ms ease;}
  .pg-post:hover .more{gap:9px;}
  .pg-empty{
    grid-column:1/-1;
    min-height:180px;
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
    background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);
    color:var(--ink-3);font-size:14px;
  }
  /* 价格 */
  .pg-price-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:stretch;}
  .pg-price-card{padding:28px;display:flex;flex-direction:column;}
  .pg-price-card .plan{font-size:16px;font-weight:600;color:var(--brand-deep);}
  .pg-price-card .price{font-size:30px;font-weight:700;color:var(--brand);margin-top:16px;font-variant-numeric:tabular-nums;}
  .pg-price-card .price small{font-size:14px;font-weight:500;color:var(--ink-3);margin-left:6px;}
  .pg-price-card ul{margin-top:20px;display:flex;flex-direction:column;gap:11px;flex:1;}
  .pg-price-card li{display:flex;gap:10px;font-size:14px;color:var(--ink-2);}
  .pg-price-card li svg{color:var(--ok);flex:none;margin-top:4px;}
  .pg-price-card .pg-btn{margin-top:24px;width:100%;}
  .pg-price-card.is-main{
    background:var(--brand-deep);
    border-color:var(--brand-deep);
    color:#fff;
    transform:translateY(-6px);
  }
  .pg-price-card.is-main:hover{transform:translateY(-8px);}
  .pg-price-card.is-main .plan,
  .pg-price-card.is-main .price{color:#fff;}
  .pg-price-card.is-main .price small{color:rgba(255,255,255,.7);}
  .pg-price-card.is-main li{color:rgba(255,255,255,.86);}
  .pg-price-card.is-main li svg{color:#8FD8B6;}
  .pg-flag{
    display:inline-block;background:var(--accent);color:#3A2606;
    font-size:12px;font-weight:700;padding:3px 10px;border-radius:999px;
  }
  /* FAQ */
  .pg-faq{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
  .pg-faq details{
    background:#fff;border:1px solid var(--line);border-radius:14px;
    border-left:3px solid var(--line);
    transition:border-color 180ms ease,box-shadow 180ms ease;
  }
  .pg-faq details[open]{border-left-color:var(--brand);box-shadow:var(--shadow-card);}
  .pg-faq summary{
    list-style:none;cursor:pointer;
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);
  }
  .pg-faq summary::-webkit-details-marker{display:none;}
  .pg-faq summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:14px;}
  .pg-faq .chev{transition:transform 200ms ease;color:var(--brand);flex:none;}
  .pg-faq details[open] .chev{transform:rotate(180deg);}
  .pg-faq .ans{padding:0 22px 20px;font-size:15px;line-height:1.75;color:var(--ink-2);}
  /* 结尾 CTA */
  .pg-cta-band{
    margin-top:96px;
    background:var(--brand-soft);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:64px 0;
    text-align:center;
  }
  .pg-cta-band h2{font-size:30px;font-weight:700;color:var(--brand-deep);}
  .pg-cta-band p{font-size:15px;color:var(--ink-2);margin-top:12px;}
  .pg-cta-actions{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;margin-top:26px;}
  /* 分类快捷 */
  .pg-cat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
  .pg-cat-card{padding:24px;display:flex;flex-direction:column;gap:12px;}
  .pg-cat-card .idx{font-size:13px;color:var(--brand);font-weight:700;letter-spacing:.08em;}
  .pg-cat-card h3{font-size:17px;font-weight:600;color:var(--brand-deep);}
  .pg-cat-card p{font-size:14px;color:var(--ink-2);}
  /* 页脚 */
  .pg-footer{
    margin-top:96px;
    background:var(--brand-deep);
    color:rgba(255,255,255,.78);
    padding:64px 0 0;
  }
  .pg-footer-grid{
    display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;
  }
  .pg-footer .brand{
    display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:16px;
  }
  .pg-footer .brand .pg-logo-mark{background:#fff;color:var(--brand-deep);}
  .pg-footer p.about{font-size:14px;margin-top:16px;max-width:320px;line-height:1.75;}
  .pg-footer .contact{font-size:14px;margin-top:16px;color:rgba(255,255,255,.72);}
  .pg-footer h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:16px;}
  .pg-footer li a{
    font-size:14px;display:inline-block;padding:5px 0;
    transition:color 180ms ease;
  }
  .pg-footer li a:hover{color:#fff;text-decoration:underline;}
  .pg-footer-bottom{
    margin-top:48px;
    border-top:1px solid rgba(255,255,255,.15);
    padding:22px 0 28px;
    display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
    font-size:13px;color:rgba(255,255,255,.62);
  }
  /* 浮动 CTA */
  .pg-float{
    position:fixed;
    right:24px;bottom:24px;
    z-index:70;
    display:inline-flex;align-items:center;gap:8px;
    padding:13px 22px;
    border-radius:999px;
    background:var(--brand);color:#fff;
    font-size:14px;font-weight:600;
    box-shadow:0 10px 26px -10px rgba(18,63,99,.55);
    opacity:0;visibility:hidden;transform:translateY(10px);
    transition:opacity 220ms ease,transform 220ms ease,visibility 220ms ease,background 180ms ease;
  }
  .pg-float.is-show{opacity:1;visibility:visible;transform:translateY(0);}
  .pg-float:hover{background:var(--brand-deep);}
  .pg-float:focus-visible{outline:2px solid #fff;outline-offset:2px;}
  /* 入场动效 */
  .pg-reveal{opacity:0;transform:translateY(12px);transition:opacity 520ms ease,transform 520ms ease;}
  .pg-reveal.is-in{opacity:1;transform:none;}
  @media (prefers-reduced-motion: reduce){
    .pg-reveal{opacity:1;transform:none;transition:none;}
    html{scroll-behavior:auto;}
  }
  /* 响应式 */
  @media (max-width:1024px){
    .pg-nav,.pg-dock-right .pg-search,.pg-dock-right .pg-btn{display:none;}
    .pg-burger{display:flex;}
    .pg-dock-right{margin-left:auto;}
    .pg-hero-grid{grid-template-columns:1fr;gap:36px;}
    .pg-h1{font-size:32px;}
    .pg-h2,.pg-cta-band h2{font-size:26px;}
    .pg-section{padding-top:72px;}
    .pg-demo-grid{grid-template-columns:1fr;gap:28px;}
    .pg-news-grid{grid-template-columns:repeat(2,1fr);}
    .pg-cat-grid{grid-template-columns:repeat(2,1fr);}
    .pg-price-grid{grid-template-columns:1fr;max-width:520px;margin:0 auto;}
    .pg-price-card.is-main{transform:none;}
    .pg-price-card.is-main:hover{transform:translateY(-2px);}
    .pg-footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  }
  @media (max-width:768px){
    .pg-container{padding:0 20px;}
    .pg-h1{font-size:28px;}
    .pg-h2{font-size:24px;}
    .pg-feature-grid{grid-template-columns:1fr;}
    .pg-trust{grid-template-columns:repeat(2,1fr);}
    .pg-proof-stats{grid-template-columns:repeat(2,1fr);gap:24px;}
    .pg-review-grid{grid-template-columns:1fr;}
    .pg-news-grid{grid-template-columns:1fr;}
    .pg-cat-grid{grid-template-columns:1fr;}
    .pg-section{padding-top:56px;}
    .pg-cta-band{margin-top:56px;padding:48px 0;}
    .pg-hero-badge{left:12px;bottom:12px;padding:12px 14px;}
    .pg-footer{margin-top:64px;padding-top:48px;}
    .pg-footer-grid{grid-template-columns:1fr;}
    .pg-footer-bottom{justify-content:center;text-align:center;}
    body{padding-bottom:64px;}
    .pg-float{
      right:0;left:0;bottom:0;
      border-radius:0;
      justify-content:center;
      padding:16px 20px calc(16px + env(safe-area-inset-bottom));
      transform:translateY(100%);
    }
    .pg-float.is-show{transform:translateY(0);}
    .pg-sec-head{flex-direction:column;align-items:flex-start;gap:12px;}
  }

/* roulang page: article */
:root{
  --brand:#1D5C8F;
  --brand-deep:#123F63;
  --brand-soft:#E7F0F8;
  --accent:#F0A22E;
  --ok:#1F9E6E;
  --ink:#0F1C2A;
  --ink-2:#4A5A6A;
  --ink-3:#7A8A99;
  --line:#DDE5EC;
  --bg:#F6F9FC;
  --surface:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(15,28,42,.05);
  --shadow-hover:0 8px 24px -12px rgba(15,28,42,.20);
  --shadow-dock:0 8px 24px -12px rgba(15,28,42,.28);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,figure,ul,ol{margin:0}
ul,ol{padding-left:22px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input{font:inherit}
button{background:none;border:0;cursor:pointer;color:inherit}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px}
.pg-container{max-width:1200px;margin:0 auto;padding:0 32px}

/* ===== 顶部浮动 Dock 导航 ===== */
.pg-header{position:sticky;top:0;z-index:60;padding:16px 20px 0}
.pg-dock{
  max-width:1080px;margin:0 auto;height:64px;display:flex;align-items:center;gap:14px;
  padding:0 12px 0 16px;background:rgba(255,255,255,.92);
  -webkit-backdrop-filter:saturate(180%) blur(8px);backdrop-filter:saturate(180%) blur(8px);
  border:1px solid var(--line);border-radius:var(--radius-pill);box-shadow:var(--shadow-dock);
  transition:height .2s ease,box-shadow .2s ease;
}
.pg-dock.is-scrolled{height:58px;box-shadow:0 10px 30px -12px rgba(15,28,42,.34)}
.pg-brand{display:flex;align-items:center;gap:9px;font-weight:700;color:var(--brand-deep);white-space:nowrap;font-size:16px;letter-spacing:-.01em}
.pg-logo-mark{width:30px;height:30px;border-radius:9px;background:var(--brand);color:#fff;display:grid;place-items:center;flex:none}
.pg-nav{display:flex;align-items:center;gap:2px;margin-left:auto}
.pg-nav a{padding:8px 13px;border-radius:var(--radius-pill);font-size:14.5px;color:var(--ink-2);transition:background .18s ease,color .18s ease;white-space:nowrap}
.pg-nav a:hover{background:var(--brand-soft);color:var(--brand)}
.pg-nav a.active{background:var(--brand-soft);color:var(--brand);font-weight:600}
.pg-dock-right{display:flex;align-items:center;gap:10px}
.pg-search{display:flex;align-items:center;gap:7px;background:var(--bg);border:1px solid var(--line);border-radius:var(--radius-pill);padding:7px 13px;width:196px;color:var(--ink-3);transition:border-color .18s ease,box-shadow .18s ease}
.pg-search input{border:0;background:transparent;outline:none;width:100%;font-size:14px;color:var(--ink)}
.pg-search input::placeholder{color:var(--ink-3)}
.pg-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px rgba(29,92,143,.14)}
.pg-burger{display:none;width:40px;height:40px;border-radius:12px;border:1px solid var(--line);align-items:center;justify-content:center;color:var(--brand-deep);background:#fff}
.pg-drawer{display:none}

/* ===== 按钮 ===== */
.pg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.pg-btn:active{transform:translateY(1px)}
.pg-btn-primary{background:var(--brand);color:#fff}
.pg-btn-primary:hover{background:var(--brand-deep);box-shadow:var(--shadow-hover)}
.pg-btn-ghost{background:#fff;border-color:var(--line);color:var(--ink)}
.pg-btn-ghost:hover{border-color:var(--brand);color:var(--brand)}
.pg-btn-sm{padding:9px 16px;font-size:14px}
.pg-btn[disabled]{opacity:.4;pointer-events:none}

/* ===== 通用元素 ===== */
.pg-pill{display:inline-flex;align-items:center;gap:6px;background:var(--brand-soft);color:var(--brand);font-size:12.5px;font-weight:600;padding:5px 12px;border-radius:var(--radius-pill)}
.pg-eyebrow{font-size:13px;letter-spacing:.08em;color:var(--brand);font-weight:600;display:inline-flex;align-items:center;gap:8px}
.pg-eyebrow::before{content:"";width:3px;height:18px;border-radius:2px;background:var(--brand)}
.pg-section{padding:80px 0}
.pg-section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:32px}
.pg-section-head h2{font-size:30px;font-weight:700;line-height:1.3;margin-top:10px}
.pg-section-head .sub{color:var(--ink-2);font-size:15px;margin-top:8px;max-width:640px}
.pg-rule{height:1px;background:var(--line);border:0;margin:0}

/* ===== 面包屑 ===== */
.pg-crumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:13px;color:var(--ink-3);padding:28px 0 0}
.pg-crumb a{color:var(--ink-3);transition:color .18s ease}
.pg-crumb a:hover{color:var(--brand)}
.pg-crumb .sep{color:#b9c6d2}
.pg-crumb .current{color:var(--ink)}

/* ===== 文章头区 ===== */
.pg-article-head{padding:22px 0 26px;border-bottom:1px solid var(--line)}
.pg-article-head h1{
  font-size:clamp(26px,3.4vw,40px);line-height:1.28;font-weight:700;letter-spacing:-.01em;
  color:var(--ink);margin:16px 0 16px;max-width:900px;
}
.pg-meta{display:flex;align-items:center;flex-wrap:wrap;gap:10px;font-size:13px;color:var(--ink-3)}
.pg-meta .dot{width:4px;height:4px;border-radius:50%;background:#c3d0dc}
.pg-meta time{font-variant-numeric:tabular-nums}

/* ===== 正文阅读区 ===== */
.pg-article-wrap{padding:40px 0 8px}
.pg-article-body{max-width:760px;margin:0 auto;font-size:16px;line-height:1.8;color:var(--ink)}
.pg-article-body>p{margin:0 0 18px}
.pg-article-body h2{
  font-size:26px;line-height:1.4;font-weight:700;margin:40px 0 16px;
  padding-left:14px;border-left:3px solid var(--brand);color:var(--brand-deep);
}
.pg-article-body h3{font-size:20px;font-weight:600;margin:28px 0 12px;color:var(--ink)}
.pg-article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px}
.pg-article-body ul,.pg-article-body ol{margin:0 0 18px;padding-left:22px}
.pg-article-body li{margin-bottom:8px}
.pg-article-body ul li::marker{color:var(--brand)}
.pg-article-body ol li::marker{color:var(--brand);font-weight:600}
.pg-article-body blockquote{
  margin:0 0 20px;padding:16px 20px;background:var(--brand-soft);
  border-left:3px solid var(--brand);border-radius:0 12px 12px 0;color:var(--brand-deep);
}
.pg-article-body blockquote p:last-child{margin-bottom:0}
.pg-article-body img{border-radius:12px;margin:10px auto;background:var(--brand-soft)}
.pg-article-body figure{margin:0 0 20px}
.pg-article-body figcaption{font-size:13px;color:var(--ink-3);text-align:center;margin-top:8px}
.pg-article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.pg-article-body a:hover{color:var(--brand-deep)}
.pg-article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;margin:0 0 22px;font-size:15px;font-variant-numeric:tabular-nums}
.pg-article-body th{background:var(--bg);text-align:left;font-weight:600;color:var(--brand-deep)}
.pg-article-body th,.pg-article-body td{border-bottom:1px solid var(--line);padding:11px 14px;white-space:nowrap}
.pg-article-body strong{font-weight:700;color:var(--brand-deep)}
.pg-article-body hr{border:0;height:1px;background:var(--line);margin:32px 0}

/* ===== 空态 ===== */
.pg-empty{
  max-width:760px;margin:0 auto;min-height:200px;display:flex;flex-direction:column;
  align-items:center;justify-content:center;gap:14px;text-align:center;
  background:var(--surface);border:1px dashed var(--line);border-radius:var(--radius-card);padding:40px 24px;
}
.pg-empty svg{color:var(--ink-3)}
.pg-empty p{color:var(--ink-2);font-size:15px}

/* ===== 文末标签与分享 ===== */
.pg-after{max-width:760px;margin:36px auto 0;padding-top:24px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.pg-tags{display:flex;gap:8px;flex-wrap:wrap}
.pg-tags span{font-size:13px;color:var(--ink-2);background:#fff;border:1px solid var(--line);border-radius:var(--radius-pill);padding:5px 12px}
.pg-share{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--ink-3)}
.pg-share button{display:inline-flex;align-items:center;gap:6px;font-size:13px;font-weight:600;color:var(--brand);border:1px solid var(--line);background:#fff;border-radius:var(--radius-pill);padding:7px 14px;transition:border-color .18s ease,background .18s ease}
.pg-share button:hover{border-color:var(--brand);background:var(--brand-soft)}

/* ===== 卡片 ===== */
.pg-grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.pg-card{
  display:flex;flex-direction:column;height:100%;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
  box-shadow:var(--shadow-card);transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.pg-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#cfdde9}
.pg-card-media{aspect-ratio:16/9;background:var(--brand-soft);overflow:hidden}
.pg-card-media img{width:100%;height:100%;object-fit:cover}
.pg-card-body{padding:22px;display:flex;flex-direction:column;gap:10px;flex:1}
.pg-card-body h3{font-size:17px;font-weight:600;line-height:1.5;color:var(--ink)}
.pg-card-body p{font-size:14px;line-height:1.7;color:var(--ink-2)}
.pg-card-foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;font-size:13px;color:var(--ink-3)}
.pg-more{display:inline-flex;align-items:center;gap:4px;color:var(--brand);font-weight:600}
.pg-more svg{transition:transform .18s ease}
.pg-card:hover .pg-more svg{transform:translateX(2px)}

/* ===== 结尾 CTA ===== */
.pg-cta{
  background:var(--brand-soft);border:1px solid #d3e3f1;border-radius:20px;
  padding:40px;display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.pg-cta h2{font-size:26px;font-weight:700;color:var(--brand-deep);line-height:1.35}
.pg-cta p{font-size:15px;color:var(--ink-2);margin-top:8px;max-width:560px}
.pg-cta-actions{display:flex;gap:12px;flex-wrap:wrap}

/* ===== 页脚 ===== */
.pg-footer{background:var(--brand-deep);color:#c8d8e6;margin-top:80px;padding:64px 0 28px}
.pg-footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px}
.pg-footer .brand{display:flex;align-items:center;gap:9px;color:#fff;font-weight:700;font-size:16px;margin-bottom:14px}
.pg-footer .brand .pg-logo-mark{background:rgba(255,255,255,.14)}
.pg-footer .about{font-size:14px;line-height:1.75;color:#a9c2d6;max-width:320px;margin-bottom:10px}
.pg-footer .contact{font-size:13px;color:#8fb0c9;word-break:break-all}
.pg-footer h4{color:#fff;font-size:14px;font-weight:600;margin-bottom:14px}
.pg-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.pg-footer a{font-size:14px;color:#c8d8e6;transition:color .18s ease}
.pg-footer a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px}
.pg-footer-bottom{
  margin-top:40px;padding-top:22px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:12px;flex-wrap:wrap;font-size:13px;color:#8fb0c9;
}

/* ===== 浮动 CTA ===== */
.pg-float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);color:#fff;font-weight:600;font-size:14.5px;
  padding:13px 22px;border-radius:var(--radius-pill);box-shadow:0 12px 28px -14px rgba(15,28,42,.5);
  opacity:0;pointer-events:none;transform:translateY(8px);
  transition:opacity .25s ease,transform .25s ease,background .18s ease;
}
.pg-float-cta.is-show{opacity:1;pointer-events:auto;transform:none}
.pg-float-cta:hover{background:var(--brand-deep)}

/* ===== 入场动效 ===== */
.pg-reveal{opacity:0;transform:translateY(12px)}
.pg-reveal.is-in{opacity:1;transform:none;transition:opacity .5s ease,transform .5s ease}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  .pg-nav,.pg-search{display:none}
  .pg-burger{display:inline-flex}
  .pg-dock-right{margin-left:auto}
  .pg-drawer{
    display:block;position:fixed;left:20px;right:20px;top:88px;z-index:65;
    background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-hover);
    padding:14px;opacity:0;pointer-events:none;transform:translateY(-8px);
    transition:opacity .2s ease,transform .2s ease;
  }
  .pg-drawer.is-open{opacity:1;pointer-events:auto;transform:none}
  .pg-drawer a{display:block;padding:12px 14px;border-radius:10px;font-size:15px;color:var(--ink-2)}
  .pg-drawer a:hover,.pg-drawer a.active{background:var(--brand-soft);color:var(--brand);font-weight:600}
  .pg-mask{position:fixed;inset:0;background:rgba(15,28,42,.4);z-index:64;opacity:0;pointer-events:none;transition:opacity .2s ease}
  .pg-mask.is-open{opacity:1;pointer-events:auto}
  .pg-grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .pg-footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:768px){
  .pg-container{padding:0 20px}
  .pg-header{padding:12px 14px 0}
  .pg-dock{height:58px;padding:0 10px 0 12px;gap:8px}
  .pg-brand{font-size:15px}
  .pg-section{padding:56px 0}
  .pg-section-head h2{font-size:24px}
  .pg-article-head h1{font-size:26px;margin:12px 0 14px}
  .pg-article-body h2{font-size:22px;margin-top:34px}
  .pg-article-body h3{font-size:18px}
  .pg-cta{padding:28px 22px}
  .pg-cta h2{font-size:22px}
  .pg-footer{padding:48px 0 24px;margin-top:56px}
}
@media (max-width:640px){
  .pg-grid-3{grid-template-columns:1fr}
  .pg-footer-grid{grid-template-columns:1fr;gap:26px}
  .pg-float-cta{
    left:0;right:0;bottom:0;border-radius:0;justify-content:center;
    padding:16px 20px calc(16px + env(safe-area-inset-bottom,0px));font-size:15px;
  }
  body{padding-bottom:56px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important}
  .pg-reveal{opacity:1;transform:none}
}

/* roulang page: category1 */
:root{
    --brand:#1D5C8F;
    --brand-deep:#123F63;
    --brand-soft:#E7F0F8;
    --accent:#F0A22E;
    --ink:#0F1C2A;
    --ink-2:#4A5A6A;
    --ink-3:#7A8A99;
    --line:#DDE5EC;
    --bg:#F6F9FC;
    --surface:#FFFFFF;
    --ok:#1F9E6E;
    --r-card:16px;
    --r-btn:10px;
    --shadow-1:0 1px 2px rgba(15,28,42,.05);
    --shadow-2:0 8px 24px -12px rgba(15,28,42,.20);
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{margin:0;}
  img{max-width:100%;display:block;}
  a{text-decoration:none;color:inherit;}
  button,input{font:inherit;}
  summary{list-style:none;}

  .pg-body{
    font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
    background:var(--bg);
    color:var(--ink);
    font-size:16px;
    line-height:1.75;
    font-variant-numeric:tabular-nums;
  }

  .pg-container{max-width:1200px;margin:0 auto;padding:0 32px;}

  /* ---------- 浮动 Dock 导航 ---------- */
  .pg-dock-wrap{position:sticky;top:0;z-index:60;padding:16px 20px 0;}
  .pg-dock{
    max-width:1080px;margin:0 auto;height:64px;
    display:flex;align-items:center;gap:14px;
    padding:0 12px 0 16px;
    background:rgba(255,255,255,.92);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    border:1px solid var(--line);
    border-radius:999px;
    box-shadow:0 8px 24px -12px rgba(15,28,42,.20);
    transition:height .2s ease,box-shadow .2s ease;
  }
  .pg-dock.is-scrolled{height:56px;box-shadow:0 10px 28px -10px rgba(15,28,42,.28);}
  .pg-logo{display:flex;align-items:center;gap:9px;font-weight:700;color:var(--brand-deep);white-space:nowrap;}
  .pg-logo-mark{width:30px;height:30px;border-radius:9px;background:var(--brand);color:#fff;display:inline-flex;align-items:center;justify-content:center;flex:none;}
  .pg-logo-text{font-size:16px;letter-spacing:.01em;}
  .pg-nav{display:flex;align-items:center;gap:2px;margin:0 auto;}
  .pg-nav a{
    padding:8px 14px;border-radius:999px;font-size:14.5px;color:var(--ink-2);
    transition:background .18s ease,color .18s ease;white-space:nowrap;
  }
  .pg-nav a:hover{background:var(--brand-soft);color:var(--brand);}
  .pg-nav a.active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
  .pg-dock-right{display:flex;align-items:center;gap:10px;}
  .pg-search{
    display:flex;align-items:center;gap:6px;background:var(--bg);
    border:1px solid var(--line);border-radius:999px;padding:7px 12px;color:var(--ink-3);
  }
  .pg-search input{border:0;background:transparent;outline:none;width:104px;font-size:13.5px;color:var(--ink);}
  .pg-search input::placeholder{color:var(--ink-3);}
  .pg-burger{
    display:none;width:40px;height:40px;border-radius:999px;border:1px solid var(--line);
    background:#fff;color:var(--ink);align-items:center;justify-content:center;cursor:pointer;
    transition:border-color .18s ease,color .18s ease;
  }
  .pg-burger:hover{border-color:var(--brand);color:var(--brand);}
  .pg-burger:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

  .pg-drawer{position:fixed;inset:0;background:rgba(15,28,42,.4);display:none;z-index:70;padding:20px;}
  .pg-drawer.open{display:block;}
  .pg-drawer-panel{background:#fff;border-radius:16px;padding:14px;box-shadow:var(--shadow-2);max-width:520px;margin:56px auto 0;}
  .pg-drawer-panel a{display:block;padding:12px 14px;border-radius:10px;font-size:15px;color:var(--ink);}
  .pg-drawer-panel a:hover{background:var(--brand-soft);color:var(--brand);}
  .pg-drawer-panel a.active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
  .pg-drawer-panel .pg-drawer-cta{margin-top:10px;}

  /* ---------- 按钮体系 ---------- */
  .pg-btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:12px 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;
    border:1px solid transparent;cursor:pointer;line-height:1;
    transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
  }
  .pg-btn-primary{background:var(--brand);color:#fff;}
  .pg-btn-primary:hover{background:var(--brand-deep);}
  .pg-btn-primary:active{transform:translateY(1px);}
  .pg-btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);}
  .pg-btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
  .pg-btn-accent{background:var(--accent);color:#3A2500;}
  .pg-btn-accent:hover{background:#dc901f;}
  .pg-btn-sm{padding:9px 16px;font-size:13.5px;}
  .pg-btn-lg{padding:14px 28px;font-size:16px;}
  .pg-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
  .pg-btn[disabled]{opacity:.4;cursor:not-allowed;}

  /* ---------- 分类 Hero ---------- */
  .pg-hero-wrap{margin-top:26px;}
  .pg-cat-hero{
    position:relative;border-radius:20px;overflow:hidden;
    min-height:300px;display:flex;align-items:center;background:var(--brand-deep);
  }
  .pg-cat-hero::before{
    content:"";position:absolute;inset:0;
    background-image:url('/assets/images/backpic/back-1.webp');
    background-size:cover;background-position:center;
  }
  .pg-cat-hero::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(90deg,rgba(18,63,99,.93) 0%,rgba(18,63,99,.80) 55%,rgba(18,63,99,.55) 100%);
  }
  .pg-cat-hero-inner{position:relative;z-index:2;padding:56px 48px;color:#fff;max-width:780px;}
  .pg-hero-tag{
    display:inline-flex;align-items:center;gap:6px;font-size:12.5px;font-weight:600;
    letter-spacing:.08em;color:#D6E6F3;background:rgba(255,255,255,.14);
    border:1px solid rgba(255,255,255,.22);padding:5px 12px;border-radius:999px;
  }
  .pg-cat-hero h1{
    font-size:40px;font-weight:700;line-height:1.25;margin:18px 0 14px;letter-spacing:.01em;
  }
  .pg-cat-hero .pg-hero-sub{font-size:16.5px;line-height:1.75;color:#D9E7F2;margin:0;max-width:560px;}
  .pg-hero-note{margin-top:18px;font-size:13px;color:#A9C3D6;}

  /* ---------- 面包屑 ---------- */
  .pg-crumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--ink-3);margin-top:20px;flex-wrap:wrap;}
  .pg-crumb a{color:var(--ink-3);transition:color .18s ease;}
  .pg-crumb a:hover{color:var(--brand);}
  .pg-crumb .sep{color:#C3CFDA;}
  .pg-crumb .current{color:var(--ink);font-weight:600;}

  /* ---------- 板块 ---------- */
  .pg-section{padding:96px 0;}
  .pg-section-tight{padding:0 0 96px;}
  .pg-sec-head{display:flex;gap:14px;align-items:flex-start;margin-bottom:32px;}
  .pg-sec-bar{width:3px;height:26px;border-radius:2px;background:var(--brand);flex:none;margin-top:7px;}
  .pg-sec-label{font-size:13px;letter-spacing:.08em;font-weight:600;color:var(--brand);margin:0 0 6px;}
  .pg-sec-head h2{font-size:30px;font-weight:700;line-height:1.3;color:var(--ink);margin:0;}
  .pg-sec-desc{font-size:15px;color:var(--ink-2);margin:10px 0 0;max-width:660px;}

  /* ---------- 卡片 ---------- */
  .pg-card{
    display:flex;flex-direction:column;height:100%;
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
    overflow:hidden;box-shadow:var(--shadow-1);
    transition:transform .18s ease,box-shadow .18s ease,border-color .18s ease;
  }
  .pg-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#CBD9E6;}
  .pg-card:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
  .pg-card-media{position:relative;aspect-ratio:16/9;background:var(--brand-soft);overflow:hidden;}
  .pg-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
  .pg-card:hover .pg-card-media img{transform:scale(1.04);}
  .pg-card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
  .pg-pill{
    align-self:flex-start;font-size:12px;font-weight:600;line-height:1.6;
    padding:3px 10px;border-radius:999px;background:var(--brand-soft);color:var(--brand);
  }
  .pg-card h3{font-size:18px;font-weight:600;line-height:1.45;color:var(--ink);margin:0;}
  .pg-card p{font-size:14px;line-height:1.7;color:var(--ink-2);margin:0;}
  .pg-card-foot{
    margin-top:auto;padding-top:12px;border-top:1px solid var(--line);
    display:flex;align-items:center;justify-content:space-between;gap:10px;
    font-size:13px;color:var(--ink-3);
  }
  .pg-more{display:inline-flex;align-items:center;gap:4px;color:var(--brand);font-weight:600;}
  .pg-more svg{transition:transform .18s ease;}
  .pg-card:hover .pg-more svg{transform:translateX(2px);}

  /* ---------- 说明段落 ---------- */
  .pg-notes{display:grid;gap:24px;grid-template-columns:repeat(2,minmax(0,1fr));}
  .pg-note-card{
    background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
    padding:26px 26px 24px;box-shadow:var(--shadow-1);
  }
  .pg-note-card h3{font-size:18px;font-weight:600;color:var(--ink);margin:0 0 10px;display:flex;align-items:center;gap:10px;}
  .pg-note-card h3 .dot{width:8px;height:8px;border-radius:999px;background:var(--brand);flex:none;}
  .pg-note-card p{font-size:15px;line-height:1.8;color:var(--ink-2);margin:0;}

  /* ---------- FAQ ---------- */
  .pg-faq{max-width:820px;margin:0 auto;display:flex;flex-direction:column;gap:12px;}
  .pg-faq details{
    background:var(--surface);border:1px solid var(--line);border-radius:14px;
    padding:0 20px;transition:border-color .18s ease,box-shadow .18s ease;
  }
  .pg-faq details:hover{border-color:#CBD9E6;}
  .pg-faq details[open]{border-left:3px solid var(--brand);box-shadow:var(--shadow-1);}
  .pg-faq summary{
    display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 0;font-size:16px;font-weight:600;color:var(--ink);cursor:pointer;
  }
  .pg-faq summary::-webkit-details-marker{display:none;}
  .pg-faq summary:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
  .pg-faq-ico{color:var(--brand);flex:none;transition:transform .2s ease;}
  .pg-faq details[open] .pg-faq-ico{transform:rotate(45deg);}
  .pg-faq p{margin:0 0 20px;font-size:15px;line-height:1.75;color:var(--ink-2);}

  /* ---------- 结尾 CTA ---------- */
  .pg-cta{
    background:var(--brand-soft);border-radius:20px;padding:56px 48px;text-align:center;
    border:1px solid #D5E5F2;
  }
  .pg-cta h2{font-size:28px;font-weight:700;color:var(--brand-deep);margin:0 0 12px;line-height:1.3;}
  .pg-cta p{font-size:15.5px;color:var(--ink-2);margin:0 auto 26px;max-width:620px;}
  .pg-cta-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap;}

  /* ---------- 浮动 CTA ---------- */
  .pg-float{
    position:fixed;right:24px;bottom:24px;z-index:55;
    opacity:0;transform:translateY(10px);pointer-events:none;
    transition:opacity .25s ease,transform .25s ease;
    box-shadow:0 10px 24px -10px rgba(18,63,99,.5);
  }
  .pg-float.show{opacity:1;transform:none;pointer-events:auto;}

  /* ---------- 页脚 ---------- */
  .pg-footer{background:var(--brand-deep);color:#C8D6E2;padding:64px 0 28px;margin-top:0;}
  .pg-footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;}
  .pg-footer .brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:17px;}
  .pg-footer .pg-logo-mark{width:32px;height:32px;border-radius:10px;}
  .pg-footer .about{font-size:14px;line-height:1.8;color:#A9BCCB;margin:14px 0 0;max-width:300px;}
  .pg-footer .contact{font-size:14px;color:#A9BCCB;margin:10px 0 0;}
  .pg-footer h4{font-size:14px;font-weight:600;color:#fff;margin:0 0 16px;}
  .pg-footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
  .pg-footer ul a{font-size:14px;color:#A9BCCB;transition:color .18s ease;}
  .pg-footer ul a:hover{color:#fff;text-decoration:underline;}
  .pg-footer-bottom{
    margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.12);
    display:flex;align-items:center;justify-content:space-between;gap:12px;flex-wrap:wrap;
    font-size:13px;color:#9FB3C4;
  }

  /* ---------- 入场动效 ---------- */
  .pg-reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;}
  .pg-reveal.in{opacity:1;transform:none;}

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    .pg-container{padding:0 28px;}
    .pg-nav{display:none;}
    .pg-search{display:none;}
    .pg-burger{display:inline-flex;}
    .pg-section{padding:72px 0;}
    .pg-section-tight{padding:0 0 72px;}
    .pg-cat-hero-inner{padding:48px 36px;}
    .pg-cat-hero h1{font-size:34px;}
    .pg-footer-grid{grid-template-columns:1fr 1fr;}
    .pg-notes{grid-template-columns:1fr;}
  }
  @media (max-width:768px){
    .pg-container{padding:0 20px;}
    .pg-dock-wrap{padding:12px 14px 0;}
    .pg-dock{height:58px;padding:0 10px 0 12px;gap:8px;}
    .pg-section{padding:56px 0;}
    .pg-section-tight{padding:0 0 56px;}
    .pg-sec-head h2{font-size:24px;}
    .pg-cat-hero{min-height:260px;border-radius:16px;}
    .pg-cat-hero-inner{padding:36px 24px;}
    .pg-cat-hero h1{font-size:28px;}
    .pg-cat-hero .pg-hero-sub{font-size:15px;}
    .pg-cta{padding:36px 22px;border-radius:16px;}
    .pg-cta h2{font-size:23px;}
    .pg-footer{padding:48px 0 24px;}
    .pg-footer-grid{grid-template-columns:1fr;gap:28px;}
    .pg-body{padding-bottom:72px;}
  }
  @media (max-width:640px){
    .pg-float{left:0;right:0;bottom:0;border-radius:0;box-shadow:0 -6px 18px -10px rgba(15,28,42,.35);}
    .pg-float .pg-btn{width:100%;height:56px;border-radius:0;padding:0;}
  }
  @media (prefers-reduced-motion:reduce){
    *,*::before,*::after{transition:none !important;animation:none !important;}
    .pg-reveal{opacity:1;transform:none;}
    html{scroll-behavior:auto;}
  }

/* roulang page: category2 */
:root{
  --brand:#1D5C8F;
  --brand-deep:#123F63;
  --brand-soft:#E7F0F8;
  --accent:#F0A22E;
  --ink:#0F1C2A;
  --ink-2:#4A5A6A;
  --ink-3:#7A8A99;
  --line:#DDE5EC;
  --bg:#F6F9FC;
  --surface:#FFFFFF;
  --ok:#1F9E6E;
  --radius-card:16px;
  --radius-btn:10px;
  --shadow-card:0 1px 2px rgba(15,28,42,.05);
  --shadow-hover:0 8px 24px -12px rgba(15,28,42,.20);
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;background:var(--bg);color:var(--ink);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--ink);}
p{margin:0 0 18px;}
section[id],[id]{scroll-margin-top:110px;}

.pg-container{max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- 浮动 Dock 导航 ---------- */
.pg-header{position:sticky;top:0;z-index:60;padding:16px 32px 0;}
.pg-dock{
  max-width:1080px;margin:0 auto;height:64px;display:flex;align-items:center;gap:12px;
  padding:0 12px 0 20px;background:rgba(255,255,255,.92);border:1px solid var(--line);
  border-radius:999px;box-shadow:0 8px 24px -12px rgba(15,28,42,.20);
  backdrop-filter:blur(10px);transition:height .2s ease,box-shadow .2s ease;
}
.pg-dock.is-scrolled{height:56px;box-shadow:0 10px 30px -12px rgba(15,28,42,.30);}
.pg-brand{display:flex;align-items:center;gap:10px;font-weight:700;font-size:16px;color:var(--brand-deep);white-space:nowrap;}
.pg-logo-mark{
  width:30px;height:30px;border-radius:9px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;flex:none;
}
.pg-nav{display:flex;align-items:center;gap:2px;margin:0 auto;}
.pg-nav a{padding:8px 14px;border-radius:999px;font-size:14.5px;color:var(--ink-2);transition:color .18s ease,background-color .18s ease;}
.pg-nav a:hover{color:var(--brand);background:var(--brand-soft);}
.pg-nav a.active{color:var(--brand);background:var(--brand-soft);font-weight:600;}
.pg-dock-right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.pg-search input{
  width:150px;padding:8px 14px;border:1px solid var(--line);border-radius:999px;
  background:#fff;color:var(--ink);font-size:14px;transition:border-color .18s ease,box-shadow .18s ease;
}
.pg-search input::placeholder{color:var(--ink-3);}
.pg-search input:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(29,92,143,.13);}

.pg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
}
.pg-btn-primary{background:var(--brand);color:#fff;}
.pg-btn-primary:hover{background:var(--brand-deep);transform:translateY(-1px);box-shadow:0 8px 20px -12px rgba(18,63,99,.65);}
.pg-btn-primary:active{transform:translateY(0);box-shadow:none;}
.pg-btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);}
.pg-btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.pg-btn-sm{padding:9px 18px;font-size:14px;}

.pg-burger{
  display:none;width:40px;height:40px;align-items:center;justify-content:center;
  border:1px solid var(--line);border-radius:12px;background:#fff;color:var(--ink);cursor:pointer;
  transition:border-color .18s ease,color .18s ease;
}
.pg-burger:hover{border-color:var(--brand);color:var(--brand);}
.pg-drawer{display:none;max-width:1080px;margin:12px auto 0;padding:10px;background:#fff;border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-hover);}
.pg-drawer.is-open{display:grid;gap:4px;}
.pg-drawer a{padding:12px 16px;border-radius:10px;color:var(--ink-2);font-size:15px;transition:background-color .18s ease,color .18s ease;}
.pg-drawer a:hover,.pg-drawer a.active{background:var(--brand-soft);color:var(--brand);font-weight:600;}

/* ---------- 面包屑 ---------- */
.pg-crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;padding-top:24px;font-size:13px;color:var(--ink-3);}
.pg-crumb a{transition:color .18s ease;}
.pg-crumb a:hover{color:var(--brand);}
.pg-crumb .sep{color:var(--line);}
.pg-crumb .current{color:var(--ink);}

/* ---------- H1 区 ---------- */
.pg-h1-grid{
  display:grid;grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
  gap:48px;align-items:end;padding-top:44px;padding-bottom:40px;
}
.pg-tag{
  display:inline-block;padding:4px 12px;border-radius:999px;background:var(--brand-soft);
  color:var(--brand);font-size:12.5px;font-weight:600;letter-spacing:.04em;
}
.pg-h1-grid h1{margin:16px 0 14px;font-size:40px;line-height:1.25;letter-spacing:-.01em;}
.pg-lead{font-size:17px;color:var(--ink-2);max-width:34em;margin:0;}
.pg-h1-aside{border-left:3px solid var(--brand);padding-left:20px;}
.pg-h1-aside p{font-size:15px;color:var(--ink-2);margin:0 0 16px;}
.pg-chip-list{list-style:none;margin:0;padding:0;display:flex;flex-wrap:wrap;gap:8px;}
.pg-chip-list li{padding:5px 12px;border:1px solid var(--line);border-radius:999px;background:#fff;font-size:13px;color:var(--ink-2);}

/* ---------- 双栏文档区 ---------- */
.pg-doc{display:grid;grid-template-columns:280px minmax(0,1fr);gap:48px;align-items:start;padding-bottom:80px;}
.pg-toc{
  position:sticky;top:96px;padding:20px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
}
.pg-toc-title{font-size:12.5px;letter-spacing:.12em;color:var(--ink-3);margin:0 0 12px;font-weight:600;}
.pg-toc nav{display:grid;gap:2px;}
.pg-toc nav a{
  display:block;padding:9px 12px;border-radius:10px;font-size:14px;color:var(--ink-2);
  transition:background-color .18s ease,color .18s ease;
}
.pg-toc nav a:hover{background:var(--bg);color:var(--brand);}
.pg-toc nav a.is-active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.pg-toc-note{margin:16px 0 0;padding-top:14px;border-top:1px solid var(--line);font-size:13px;color:var(--ink-3);line-height:1.7;}

.pg-article{
  padding:44px 48px 40px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
}
.pg-article section + section{margin-top:40px;padding-top:36px;border-top:1px solid var(--line);}
.pg-article h2{position:relative;padding-left:16px;font-size:26px;margin:0 0 20px;}
.pg-article h2::before{
  content:"";position:absolute;left:0;top:.22em;width:3px;height:1.05em;border-radius:2px;background:var(--brand);
}
.pg-article h3{font-size:18px;margin:26px 0 12px;}
.pg-article p{color:var(--ink-2);font-size:16px;line-height:1.8;}
.pg-article strong{color:var(--ink);font-weight:600;}
.pg-article ul{list-style:disc;padding-left:1.4em;margin:0 0 20px;color:var(--ink-2);font-size:16px;line-height:1.8;}
.pg-article ol{list-style:decimal;padding-left:1.4em;margin:0 0 20px;color:var(--ink-2);font-size:16px;line-height:1.8;}
.pg-article li{margin-bottom:10px;}

.pg-check-list{list-style:none !important;padding:0 !important;display:grid;gap:12px;}
.pg-check-list li{
  position:relative;padding:14px 16px 14px 44px;margin:0;background:var(--bg);
  border:1px solid var(--line);border-radius:12px;font-size:15px;color:var(--ink-2);line-height:1.75;
}
.pg-check-list li::before{
  content:"";position:absolute;left:16px;top:19px;width:13px;height:13px;
  border:1.5px solid var(--brand);border-radius:4px;
}

.pg-inline-card{
  display:grid;grid-template-columns:180px minmax(0,1fr);gap:20px;align-items:center;
  padding:16px;margin:8px 0 24px;background:var(--bg);border:1px solid var(--line);border-radius:14px;
}
.pg-inline-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:10px;background:var(--brand-soft);}
.pg-inline-card .card-title{font-weight:600;color:var(--ink);font-size:15px;margin:0 0 6px;}
.pg-inline-card p{margin:0;font-size:14.5px;color:var(--ink-2);}

.pg-issue-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;
  margin:8px 0 24px;padding:0;list-style:none !important;
}
.pg-issue-grid li{
  padding:16px 18px;border:1px solid var(--line);border-left:3px solid var(--accent);
  border-radius:12px;background:#fff;font-size:14.5px;color:var(--ink-2);line-height:1.7;
}
.pg-issue-grid strong{display:block;font-size:15px;color:var(--ink);margin-bottom:6px;}

.pg-steps{list-style:none !important;padding:0 !important;margin:0 0 24px;counter-reset:step;}
.pg-steps li{
  position:relative;counter-increment:step;margin-left:14px;padding:0 0 22px 44px;
  border-left:2px solid var(--line);margin-bottom:0;
}
.pg-steps li:last-child{border-left-color:transparent;padding-bottom:0;}
.pg-steps li::before{
  content:counter(step);position:absolute;left:-15px;top:0;width:28px;height:28px;border-radius:50%;
  background:var(--brand);color:#fff;font-size:13px;font-weight:600;
  display:flex;align-items:center;justify-content:center;
}
.pg-steps h3{margin:0 0 6px;font-size:16px;}
.pg-steps p{margin:0;font-size:15px;}

.pg-faq details{
  border:1px solid var(--line);border-radius:12px;background:#fff;margin-bottom:12px;
  transition:box-shadow .2s ease,border-color .2s ease;
}
.pg-faq details:hover{border-color:#C9D6E2;}
.pg-faq details[open]{box-shadow:var(--shadow-card),inset 3px 0 0 var(--brand);}
.pg-faq summary{
  list-style:none;cursor:pointer;position:relative;
  padding:16px 48px 16px 18px;font-size:16px;font-weight:600;color:var(--ink);
}
.pg-faq summary::-webkit-details-marker{display:none;}
.pg-faq summary::after{
  content:"";position:absolute;right:22px;top:50%;width:9px;height:9px;
  border-right:2px solid var(--ink-3);border-bottom:2px solid var(--ink-3);
  transform:translateY(-70%) rotate(45deg);transition:transform .2s ease;
}
.pg-faq details[open] summary::after{transform:translateY(-30%) rotate(-135deg);}
.pg-faq .answer{padding:0 20px 18px;font-size:15px;color:var(--ink-2);line-height:1.78;}

.pg-back-row{display:flex;flex-wrap:wrap;gap:12px;margin-top:32px;}

/* ---------- 结尾 CTA ---------- */
.pg-cta{background:var(--brand-soft);border-top:1px solid var(--line);}
.pg-cta-inner{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;
  gap:28px;padding-top:56px;padding-bottom:56px;
}
.pg-cta h2{font-size:28px;margin-bottom:10px;}
.pg-cta p{margin:0;color:var(--ink-2);font-size:15.5px;}
.pg-cta-actions{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- 页脚 ---------- */
.pg-footer{background:var(--brand-deep);color:#D7E3EE;padding-top:64px;}
.pg-footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;
  padding-bottom:44px;
}
.pg-footer .brand{display:flex;align-items:center;gap:10px;font-size:17px;font-weight:700;color:#fff;margin-bottom:14px;}
.pg-footer h4{color:#fff;font-size:14px;font-weight:600;margin:0 0 14px;}
.pg-footer ul{list-style:none;margin:0;padding:0;display:grid;gap:10px;}
.pg-footer ul a{color:#B9CBDD;font-size:14px;transition:color .18s ease;}
.pg-footer ul a:hover{color:#fff;text-decoration:underline;}
.pg-footer .about{font-size:14px;color:#B9CBDD;margin:0 0 10px;line-height:1.75;max-width:26em;}
.pg-footer .contact{font-size:14px;color:#B9CBDD;margin:0;}
.pg-footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);display:flex;flex-wrap:wrap;
  justify-content:space-between;gap:12px;padding:18px 0 22px;font-size:13px;color:#93AAC0;
}

/* ---------- 浮动 CTA ---------- */
.pg-fab{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 22px;border-radius:999px;background:var(--brand);color:#fff;
  font-size:15px;font-weight:600;box-shadow:0 12px 28px -14px rgba(15,28,42,.55);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .24s ease,transform .24s ease,visibility .24s ease,background-color .18s ease;
}
.pg-fab.is-visible{opacity:1;visibility:visible;transform:none;}
.pg-fab:hover{background:var(--brand-deep);}

/* ---------- 入场动效 ---------- */
.pg-reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;}
.pg-reveal.is-in{opacity:1;transform:none;}
@media (prefers-reduced-motion: reduce){
  html{scroll-behavior:auto;}
  .pg-reveal{opacity:1;transform:none;transition:none;}
  .pg-btn,.pg-nav a,.pg-toc nav a,.pg-fab{transition:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .pg-nav{display:none;}
  .pg-search{display:none;}
  .pg-burger{display:inline-flex;}
  .pg-h1-grid{grid-template-columns:1fr;gap:24px;align-items:start;padding-top:32px;padding-bottom:28px;}
  .pg-h1-grid h1{font-size:34px;}
  .pg-doc{grid-template-columns:1fr;gap:24px;}
  .pg-toc{position:static;padding:16px;}
  .pg-toc nav{grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;}
  .pg-article{padding:34px 30px;}
  .pg-footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:768px){
  .pg-container{padding:0 20px;}
  .pg-header{padding:12px 20px 0;}
  .pg-h1-grid h1{font-size:28px;}
  .pg-lead{font-size:16px;}
  .pg-article{padding:28px 22px;}
  .pg-article h2{font-size:22px;}
  .pg-article h3{font-size:17px;}
  .pg-issue-grid{grid-template-columns:1fr;}
  .pg-inline-card{grid-template-columns:1fr;}
  .pg-toc nav{grid-template-columns:1fr;}
  .pg-cta-inner{padding-top:44px;padding-bottom:44px;}
  .pg-cta h2{font-size:23px;}
  .pg-footer{padding-top:48px;}
  .pg-footer-grid{grid-template-columns:1fr;gap:24px;padding-bottom:32px;}
}
@media (max-width:640px){
  body{padding-bottom:64px;}
  .pg-dock{height:58px;padding:0 8px 0 14px;gap:8px;}
  .pg-dock.is-scrolled{height:54px;}
  .pg-brand{font-size:15px;}
  .pg-logo-mark{width:27px;height:27px;border-radius:8px;}
  .pg-fab{left:16px;right:16px;bottom:14px;border-radius:999px;padding:14px 20px;}
}
@media (max-width:520px){
  .pg-article{padding:22px 16px;}
  .pg-article p,.pg-article ul,.pg-article ol{font-size:15.5px;}
  .pg-footer-bottom{flex-direction:column;gap:6px;}
  .pg-btn{padding:11px 18px;font-size:14.5px;}
}

/* roulang page: category3 */
:root{
  --brand:#1D5C8F;
  --brand-deep:#123F63;
  --brand-soft:#E7F0F8;
  --accent:#F0A22E;
  --ok:#1F9E6E;
  --ink:#0F1C2A;
  --ink-2:#4A5A6A;
  --ink-3:#7A8A99;
  --line:#DDE5EC;
  --bg:#F6F9FC;
  --surface:#FFFFFF;
  --radius-card:16px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-card:0 1px 2px rgba(15,28,42,.05);
  --shadow-hover:0 8px 24px -12px rgba(15,28,42,.20);
  --shadow-dock:0 8px 24px -12px rgba(15,28,42,.22);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
  padding-bottom:0;
  font-variant-numeric:tabular-nums;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;}
button,input{font:inherit;color:inherit;}
ul{list-style:none;margin:0;padding:0;}
h1,h2,h3,h4{line-height:1.3;margin:0;font-weight:700;}
p{margin:0;}

.pg-container{max-width:1200px;margin:0 auto;padding:0 32px;}

/* ---------- Dock 导航 ---------- */
.pg-header{
  position:sticky;
  top:0;
  z-index:80;
  padding:16px 20px 0;
}
.pg-dock{
  max-width:1080px;
  margin:0 auto;
  height:64px;
  display:flex;
  align-items:center;
  gap:16px;
  padding:0 10px 0 18px;
  background:rgba(255,255,255,.92);
  backdrop-filter:saturate(150%) blur(10px);
  border:1px solid var(--line);
  border-radius:var(--radius-pill);
  box-shadow:var(--shadow-dock);
  transition:height .2s ease,box-shadow .2s ease;
}
.pg-header.is-scrolled .pg-dock{height:56px;box-shadow:0 10px 28px -14px rgba(15,28,42,.32);}
.pg-brand{display:flex;align-items:center;gap:9px;font-weight:700;color:var(--brand-deep);white-space:nowrap;flex:0 0 auto;font-size:16px;}
.pg-logo-mark{
  width:30px;height:30px;border-radius:9px;background:var(--brand);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;
}
.pg-nav{display:flex;align-items:center;gap:2px;margin:0 auto;}
.pg-nav a{
  padding:8px 14px;border-radius:var(--radius-pill);font-size:14.5px;color:var(--ink-2);
  transition:background .18s ease,color .18s ease;white-space:nowrap;
}
.pg-nav a:hover{background:var(--brand-soft);color:var(--brand);}
.pg-nav a.active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.pg-nav a:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.pg-dock-right{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.pg-search{
  display:flex;align-items:center;gap:8px;height:38px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--radius-pill);background:#fff;
  transition:border-color .18s ease,box-shadow .18s ease;
}
.pg-search:focus-within{border-color:var(--brand);box-shadow:0 0 0 2px rgba(29,92,143,.15);}
.pg-search svg{color:var(--ink-3);flex:0 0 auto;}
.pg-search input{
  border:0;outline:0;width:118px;font-size:14px;background:transparent;
}
.pg-search input::placeholder{color:var(--ink-3);}
.pg-burger{
  display:none;width:38px;height:38px;border-radius:var(--radius-pill);
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
  cursor:pointer;color:var(--ink-2);
}
.pg-burger:hover{border-color:var(--brand);color:var(--brand);}
.pg-drawer{
  display:none;max-width:1080px;margin:10px auto 0;background:#fff;
  border:1px solid var(--line);border-radius:16px;box-shadow:var(--shadow-hover);
  padding:16px;
}
.pg-drawer.is-open{display:block;}
.pg-drawer a{
  display:block;padding:11px 14px;border-radius:10px;font-size:15px;color:var(--ink-2);
}
.pg-drawer a:hover{background:var(--brand-soft);color:var(--brand);}
.pg-drawer a.active{background:var(--brand-soft);color:var(--brand);font-weight:600;}
.pg-drawer .pg-search{width:100%;margin-top:10px;}
.pg-drawer .pg-search input{width:100%;}

/* ---------- 按钮 ---------- */
.pg-btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease,box-shadow .18s ease;
  white-space:nowrap;
}
.pg-btn:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
.pg-btn:active{transform:translateY(0);}
.pg-btn-primary{background:var(--brand);color:#fff;}
.pg-btn-primary:hover{background:var(--brand-deep);transform:translateY(-2px);}
.pg-btn-ghost{background:#fff;border-color:var(--line);color:var(--ink);}
.pg-btn-ghost:hover{border-color:var(--brand);color:var(--brand);}
.pg-btn-sm{padding:9px 16px;font-size:14px;border-radius:var(--radius-pill);}
.pg-btn-lg{padding:14px 28px;font-size:16px;}
.pg-btn .pg-arrow{transition:transform .18s ease;}
.pg-btn:hover .pg-arrow{transform:translateX(2px);}

/* ---------- Hero（窄幅） ---------- */
.pg-hero-wrap{padding-top:12px;}
.pg-hero-narrow{
  position:relative;border-radius:20px;overflow:hidden;min-height:280px;
  display:flex;align-items:center;background:var(--brand-deep);
}
.pg-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.5;}
.pg-hero-veil{
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(18,63,99,.90) 0%,rgba(18,63,99,.74) 55%,rgba(18,63,99,.55) 100%);
}
.pg-hero-content{position:relative;z-index:2;padding:46px 44px;color:#fff;max-width:760px;}
.pg-hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;
  color:#CFE2F1;border:1px solid rgba(255,255,255,.28);border-radius:var(--radius-pill);
  padding:5px 14px;margin-bottom:18px;
}
.pg-hero-narrow h1{font-size:40px;font-weight:700;line-height:1.25;color:#fff;}
.pg-hero-sub{margin-top:16px;font-size:17px;color:#DCE9F4;line-height:1.7;max-width:560px;}
.pg-hero-meta{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px;}
.pg-hero-meta span{
  font-size:13px;color:#E7F0F8;background:rgba(255,255,255,.14);
  border-radius:var(--radius-pill);padding:5px 14px;
}

/* ---------- 面包屑 ---------- */
.pg-crumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--ink-3);padding:22px 0 0;
}
.pg-crumb a:hover{color:var(--brand);}
.pg-crumb .sep{color:#C3CFDA;}
.pg-crumb .current{color:var(--ink);}

/* ---------- 通用区块 ---------- */
.pg-section{padding:96px 0 0;}
.pg-section-head{max-width:640px;margin-bottom:40px;}
.pg-tag{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:.08em;
  color:var(--brand);font-weight:600;
}
.pg-tag::before{content:"";width:3px;height:16px;border-radius:2px;background:var(--brand);}
.pg-section-head h2{font-size:30px;margin-top:12px;color:var(--ink);}
.pg-section-head p{margin-top:12px;color:var(--ink-2);font-size:16px;}

/* ---------- 时间线 ---------- */
.pg-timeline{
  position:relative;max-width:900px;margin:0 auto;padding-left:56px;
}
.pg-timeline::before{
  content:"";position:absolute;left:13px;top:10px;bottom:10px;width:2px;
  background:var(--brand-soft);border-radius:2px;
}
.pg-tl-item{position:relative;padding-bottom:26px;}
.pg-tl-item:last-child{padding-bottom:0;}
.pg-tl-dot{
  position:absolute;left:-56px;top:22px;width:28px;height:28px;border-radius:50%;
  background:var(--brand);color:#fff;font-size:13px;font-weight:600;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 0 0 5px var(--bg);
}
.pg-tl-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-card);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.pg-tl-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-2px);border-color:#CBDCEA;}
.pg-tl-step{font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.06em;}
.pg-tl-card h3{font-size:20px;font-weight:600;margin:8px 0 10px;}
.pg-tl-card p{color:var(--ink-2);font-size:15px;line-height:1.8;}
.pg-tl-points{margin-top:14px;display:flex;flex-wrap:wrap;gap:8px;}
.pg-chip{
  font-size:12.5px;color:var(--brand);background:var(--brand-soft);
  border-radius:var(--radius-pill);padding:4px 12px;
}
.pg-tl-media{
  margin-top:18px;border-radius:12px;overflow:hidden;background:var(--brand-soft);
  aspect-ratio:16/9;
}
.pg-tl-media img{width:100%;height:100%;object-fit:cover;}

/* ---------- 要点条 ---------- */
.pg-stats{
  margin-top:56px;background:var(--surface);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-card);
  display:grid;grid-template-columns:repeat(4,1fr);
  overflow:hidden;
}
.pg-stat{padding:28px 24px;border-right:1px solid var(--line);}
.pg-stat:last-child{border-right:0;}
.pg-stat strong{display:block;font-size:28px;font-weight:700;color:var(--brand-deep);}
.pg-stat span{display:block;margin-top:8px;font-size:14px;color:var(--ink-2);}

/* ---------- 提示条 ---------- */
.pg-notice{
  margin-top:56px;background:var(--surface);border:1px solid var(--line);
  border-left:3px solid var(--accent);border-radius:12px;padding:20px 24px;
  display:flex;gap:14px;align-items:flex-start;
}
.pg-notice svg{color:var(--accent);flex:0 0 auto;margin-top:3px;}
.pg-notice h3{font-size:16px;font-weight:600;margin-bottom:6px;}
.pg-notice p{font-size:14.5px;color:var(--ink-2);}

/* ---------- FAQ ---------- */
.pg-faq{max-width:820px;margin:0 auto;}
.pg-faq details{
  background:var(--surface);border:1px solid var(--line);border-radius:12px;
  margin-bottom:12px;overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.pg-faq details[open]{border-left:3px solid var(--brand);box-shadow:var(--shadow-card);}
.pg-faq summary{
  list-style:none;cursor:pointer;padding:18px 22px;font-size:16px;font-weight:600;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.pg-faq summary::-webkit-details-marker{display:none;}
.pg-faq summary:focus-visible{outline:2px solid var(--brand);outline-offset:-3px;}
.pg-faq .pg-faq-icon{
  width:22px;height:22px;flex:0 0 auto;color:var(--brand);
  transition:transform .2s ease;
}
.pg-faq details[open] .pg-faq-icon{transform:rotate(45deg);}
.pg-faq .pg-faq-body{padding:0 22px 20px;font-size:15px;color:var(--ink-2);line-height:1.8;}

/* ---------- CTA ---------- */
.pg-cta-band{
  margin-top:96px;background:var(--brand-soft);border-radius:20px;
  padding:56px 48px;display:flex;align-items:center;justify-content:space-between;
  gap:32px;flex-wrap:wrap;
}
.pg-cta-band h2{font-size:30px;color:var(--brand-deep);}
.pg-cta-band p{margin-top:12px;color:var(--ink-2);font-size:16px;max-width:560px;}
.pg-cta-actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- 浮动 CTA ---------- */
.pg-float-cta{
  position:fixed;right:24px;bottom:24px;z-index:70;
  display:inline-flex;align-items:center;gap:8px;
  padding:13px 22px;border-radius:var(--radius-pill);
  background:var(--brand);color:#fff;font-size:15px;font-weight:600;
  box-shadow:0 12px 28px -14px rgba(15,28,42,.5);
  opacity:0;transform:translateY(12px);pointer-events:none;
  transition:opacity .22s ease,transform .22s ease,background .18s ease;
}
.pg-float-cta.is-show{opacity:1;transform:translateY(0);pointer-events:auto;}
.pg-float-cta:hover{background:var(--brand-deep);}
.pg-float-cta:focus-visible{outline:2px solid var(--brand-deep);outline-offset:3px;}

/* ---------- 页脚 ---------- */
.pg-footer{
  margin-top:96px;background:var(--brand-deep);color:#D3E1EE;padding:64px 0 0;
}
.pg-footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1fr;gap:32px;
}
.pg-footer .brand{
  display:flex;align-items:center;gap:9px;font-size:16px;font-weight:700;color:#fff;
}
.pg-footer .brand .pg-logo-mark{background:rgba(255,255,255,.16);}
.pg-footer .about{margin-top:16px;font-size:14px;line-height:1.8;color:#B9CCDD;max-width:320px;}
.pg-footer .contact{margin-top:14px;font-size:14px;color:#B9CCDD;}
.pg-footer h4{font-size:14px;font-weight:600;color:#fff;margin-bottom:16px;}
.pg-footer ul li{margin-bottom:10px;}
.pg-footer ul a{font-size:14px;color:#B9CCDD;transition:color .18s ease;}
.pg-footer ul a:hover{color:#fff;text-decoration:underline;}
.pg-footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.14);
  padding:22px 0 26px;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#9FB6CA;
}

/* ---------- 动效 ---------- */
.pg-reveal{opacity:0;transform:translateY(12px);transition:opacity .5s ease,transform .5s ease;}
.pg-reveal.is-visible{opacity:1;transform:translateY(0);}

@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  html{scroll-behavior:auto;}
  .pg-reveal{opacity:1;transform:none;}
}

/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  .pg-nav{display:none;}
  .pg-search{display:none;}
  .pg-burger{display:inline-flex;}
  .pg-dock{margin:0 auto;}
  .pg-hero-narrow h1{font-size:32px;}
  .pg-footer-grid{grid-template-columns:1fr 1fr;}
  .pg-stats{grid-template-columns:1fr 1fr;}
  .pg-stat:nth-child(2){border-right:0;}
  .pg-stat:nth-child(1),.pg-stat:nth-child(2){border-bottom:1px solid var(--line);}
}
@media (max-width:768px){
  .pg-container{padding:0 20px;}
  .pg-header{padding:12px 14px 0;}
  .pg-dock{height:58px;padding:0 8px 0 14px;gap:10px;}
  .pg-header.is-scrolled .pg-dock{height:52px;}
  .pg-brand{font-size:15px;}
  .pg-hero-content{padding:34px 24px;}
  .pg-hero-narrow h1{font-size:28px;}
  .pg-hero-sub{font-size:15.5px;}
  .pg-section{padding:56px 0 0;}
  .pg-section-head h2{font-size:24px;}
  .pg-timeline{padding-left:44px;}
  .pg-timeline::before{left:11px;}
  .pg-tl-dot{left:-44px;width:24px;height:24px;font-size:12px;}
  .pg-tl-card{padding:20px;}
  .pg-tl-card h3{font-size:18px;}
  .pg-cta-band{padding:36px 24px;margin-top:56px;}
  .pg-cta-band h2{font-size:24px;}
  .pg-footer{margin-top:56px;padding-top:48px;}
  .pg-footer-grid{grid-template-columns:1fr;gap:28px;}
  .pg-float-cta{
    right:0;left:0;bottom:0;border-radius:0;height:56px;justify-content:center;
    padding:0 20px;box-shadow:0 -8px 20px -12px rgba(15,28,42,.45);
    transform:translateY(100%);
  }
  .pg-float-cta.is-show{transform:translateY(0);}
  body{padding-bottom:72px;}
}
@media (max-width:520px){
  .pg-stats{grid-template-columns:1fr;}
  .pg-stat{border-right:0;border-bottom:1px solid var(--line);}
  .pg-stat:last-child{border-bottom:0;}
  .pg-hero-narrow{min-height:240px;border-radius:16px;}
  .pg-cta-actions{width:100%;}
  .pg-cta-actions .pg-btn{flex:1;}
}

/* roulang page: category4 */
:root {
    --brand: #1D5C8F;
    --brand-deep: #123F63;
    --brand-soft: #E7F0F8;
    --accent: #F0A22E;
    --ink: #0F1C2A;
    --ink-2: #4A5A6A;
    --ink-3: #7A8A99;
    --line: #DDE5EC;
    --bg: #F6F9FC;
    --surface: #FFFFFF;
    --ok: #1F9E6E;
    --radius-card: 16px;
    --radius-btn: 10px;
    --radius-pill: 999px;
    --shadow-card: 0 1px 2px rgba(15, 28, 42, .05);
    --shadow-hover: 0 8px 24px -12px rgba(15, 28, 42, .20);
  }

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

  html { scroll-behavior: smooth; }

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

  img { max-width: 100%; display: block; }
  a { color: inherit; text-decoration: none; }
  button { font-family: inherit; }
  input { font-family: inherit; }

  .pg-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 32px;
  }

  /* ---------- 浮动 Dock 导航 ---------- */
  .pg-header {
    position: sticky;
    top: 16px;
    z-index: 50;
    padding-top: 16px;
    margin-bottom: 24px;
  }

  .pg-dock {
    max-width: 1080px;
    margin: 0 auto;
    height: 64px;
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 0 14px 0 18px;
    background: rgba(255, 255, 255, .92);
    backdrop-filter: blur(10px);
    border: 1px solid var(--line);
    border-radius: var(--radius-pill);
    box-shadow: 0 8px 24px -12px rgba(15, 28, 42, .20);
    transition: height .18s ease, box-shadow .18s ease;
  }

  .pg-dock.is-scrolled {
    height: 56px;
    box-shadow: 0 12px 30px -14px rgba(15, 28, 42, .28);
  }

  .pg-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    flex: 0 0 auto;
  }

  .pg-logo-mark {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-pill);
    background: var(--brand);
    color: #fff;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    flex: 0 0 auto;
  }

  .pg-brand-text {
    font-size: 16px;
    font-weight: 700;
    color: var(--brand-deep);
    letter-spacing: .01em;
    white-space: nowrap;
  }

  .pg-nav {
    display: flex;
    align-items: center;
    gap: 4px;
    margin-left: auto;
  }

  .pg-nav a {
    display: inline-block;
    padding: 8px 14px;
    border-radius: var(--radius-pill);
    font-size: 14px;
    color: var(--ink-2);
    white-space: nowrap;
    transition: color .18s ease, background-color .18s ease;
  }

  .pg-nav a:hover,
  .pg-nav a:focus-visible {
    color: var(--brand);
    background: var(--brand-soft);
  }

  .pg-nav a.active {
    color: var(--brand);
    background: var(--brand-soft);
    font-weight: 600;
  }

  .pg-dock-right {
    display: flex;
    align-items: center;
    gap: 10px;
    flex: 0 0 auto;
  }

  .pg-search input {
    width: 168px;
    height: 38px;
    padding: 0 16px;
    border: 1px solid var(--line);
    border-radius: var(--radius-pill);
    background: #fff;
    font-size: 13px;
    color: var(--ink);
    outline: none;
    transition: border-color .18s ease, box-shadow .18s ease;
  }

  .pg-search input::placeholder { color: var(--ink-3); }
  .pg-search input:focus {
    border-color: var(--brand);
    box-shadow: 0 0 0 2px rgba(29, 92, 143, .18);
  }

  .pg-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 12px 22px;
    border-radius: var(--radius-btn);
    font-size: 15px;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    transition: background-color .18s ease, color .18s ease, border-color .18s ease, transform .18s ease;
  }

  .pg-btn:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 2px;
  }

  .pg-btn-primary {
    background: var(--brand);
    color: #fff;
  }
  .pg-btn-primary:hover { background: var(--brand-deep); }
  .pg-btn-primary:active { transform: translateY(1px); }

  .pg-btn-ghost {
    background: #fff;
    border-color: var(--line);
    color: var(--ink);
  }
  .pg-btn-ghost:hover {
    border-color: var(--brand);
    color: var(--brand);
  }

  .pg-btn-sm {
    padding: 9px 18px;
    font-size: 14px;
  }

  .pg-burger {
    display: none;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--line);
    border-radius: var(--radius-pill);
    background: #fff;
    color: var(--brand-deep);
    cursor: pointer;
  }
  .pg-burger:hover { border-color: var(--brand); color: var(--brand); }

  /* ---------- 移动端抽屉 ---------- */
  .pg-drawer {
    position: fixed;
    inset: 0;
    z-index: 60;
    display: none;
  }
  .pg-drawer.open { display: block; }

  .pg-drawer-mask {
    position: absolute;
    inset: 0;
    background: rgba(15, 28, 42, .40);
    border: 0;
    padding: 0;
    cursor: pointer;
  }

  .pg-drawer-panel {
    position: absolute;
    top: 0; left: 0; right: 0;
    background: #fff;
    padding: 84px 24px 28px;
    border-radius: 0 0 20px 20px;
    box-shadow: 0 24px 48px -24px rgba(15, 28, 42, .35);
  }

  .pg-drawer-panel nav {
    display: flex;
    flex-direction: column;
    gap: 6px;
  }

  .pg-drawer-panel nav a {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 15px;
    color: var(--ink-2);
    border: 1px solid var(--line);
    background: #fff;
  }

  .pg-drawer-panel nav a.active {
    background: var(--brand-soft);
    color: var(--brand);
    font-weight: 600;
    border-color: transparent;
  }

  .pg-drawer-panel .pg-search { margin-top: 16px; }
  .pg-drawer-panel .pg-search input { width: 100%; height: 44px; }

  /* ---------- 通用板块 ---------- */
  .pg-section { padding: 56px 0 0; }

  .pg-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    letter-spacing: .08em;
    color: var(--brand);
    font-weight: 600;
  }

  .pg-eyebrow::before {
    content: "";
    width: 3px;
    height: 14px;
    background: var(--brand);
    border-radius: 2px;
  }

  .pg-h2 {
    margin: 12px 0 0;
    font-size: 30px;
    line-height: 1.3;
    font-weight: 700;
    color: var(--ink);
  }

  .pg-lead {
    margin: 12px 0 0;
    font-size: 15.5px;
    color: var(--ink-2);
    max-width: 720px;
  }

  /* ---------- Hero ---------- */
  .pg-hero {
    position: relative;
    border-radius: 20px;
    overflow: hidden;
    min-height: 280px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 40px;
    color: #fff;
    background-image: linear-gradient(rgba(18, 63, 99, .86), rgba(18, 63, 99, .82)), url('/assets/images/backpic/back-1.webp');
    background-size: cover;
    background-position: center;
  }

  .pg-crumb {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    color: rgba(255, 255, 255, .72);
    margin-bottom: 18px;
  }
  .pg-crumb a { color: rgba(255, 255, 255, .82); }
  .pg-crumb a:hover { color: #fff; text-decoration: underline; }
  .pg-crumb .sep { color: rgba(255, 255, 255, .5); }
  .pg-crumb .current { color: #fff; }

  .pg-hero h1 {
    margin: 0;
    font-size: 40px;
    line-height: 1.25;
    font-weight: 700;
    letter-spacing: .01em;
  }

  .pg-hero .sub {
    margin: 14px 0 0;
    font-size: 16px;
    color: rgba(255, 255, 255, .86);
    max-width: 640px;
  }

  .pg-hero-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 22px;
  }

  .pg-hero-tags span {
    display: inline-flex;
    align-items: center;
    padding: 5px 14px;
    border-radius: var(--radius-pill);
    background: rgba(255, 255, 255, .14);
    border: 1px solid rgba(255, 255, 255, .22);
    font-size: 13px;
    color: #fff;
  }

  /* ---------- 对比表 ---------- */
  .pg-table-wrap {
    margin-top: 32px;
    background: var(--surface);
    border: 1px solid var(--line);
    border-radius: var(--radius-card);
    box-shadow: var(--shadow-card);
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .pg-table {
    width: 100%;
    min-width: 720px;
    border-collapse: collapse;
  }

  .pg-table thead th {
    background: var(--brand-deep);
    color: #fff;
    font-size: 14px;
    font-weight: 600;
    text-align: left;
    padding: 16px 20px;
    white-space: nowrap;
  }

  .pg-table thead th:first-child { border-top-left-radius: 15px; }
  .pg-table thead th:last-child { border-top-right-radius: 15px; }

  .pg-table tbody td {
    padding: 17px 20px;
    font-size: 14.5px;
    line-height: 1.7;
    color: var(--ink-2);
    border-bottom: 1px solid var(--line);
    vertical-align: top;
  }

  .pg-table tbody tr:nth-child(even) { background: var(--bg); }
  .pg-table tbody tr:last-child td { border-bottom: 0; }

  .pg-table tbody td:first-child {
    color: var(--ink);
    font-weight: 600;
    width: 20%;
  }

  .pg-badge-accent,
  .pg-badge-ok {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    padding: 2px 9px;
    border-radius: var(--radius-pill);
    font-size: 12px;
    font-weight: 600;
    line-height: 1.6;
    margin-left: 6px;
    white-space: nowrap;
  }

  .pg-badge-accent {
    background: rgba(240, 162, 46, .16);
    color: #8A5800;
  }

  .pg-badge-ok {
    background: rgba(31, 158, 110, .13);
    color: #12724E;
  }

  /* ---------- 两组要点卡 ---------- */
  .pg-points {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 24px;
    margin-top: 32px;
  }

  .pg-point-card {
    background: var(--surface);
    border: 1px solid var(--line);
    border-left: 3px solid var(--ok);
    border-radius: var(--radius-card);
    padding: 28px;
    box-shadow: var(--shadow-card);
    transition: box-shadow .18s ease, transform .18s ease;
  }

  .pg-point-card:hover {
    box-shadow: var(--shadow-hover);
    transform: translateY(-2px);
  }

  .pg-point-card.warn { border-left-color: var(--accent); }

  .pg-point-card h3 {
    margin: 0 0 6px;
    font-size: 20px;
    font-weight: 600;
    color: var(--ink);
  }

  .pg-point-card .hint {
    margin: 0 0 18px;
    font-size: 13px;
    color: var(--ink-3);
  }

  .pg-point-list {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .pg-point-list li {
    position: relative;
    padding-left: 26px;
    margin-bottom: 14px;
    font-size: 15px;
    line-height: 1.75;
    color: var(--ink-2);
  }

  .pg-point-list li:last-child { margin-bottom: 0; }

  .pg-point-list li::before {
    content: "";
    position: absolute;
    left: 2px;
    top: 9px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: rgba(31, 158, 110, .18);
    box-shadow: inset 0 0 0 2px var(--ok);
  }

  .pg-point-card.warn .pg-point-list li::before {
    background: rgba(240, 162, 46, .18);
    box-shadow: inset 0 0 0 2px var(--accent);
  }

  /* ---------- FAQ ---------- */
  .pg-faq-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-top: 32px;
  }

  .pg-faq-item {
    background: var(--surface);
    border: 1px solid var(--line);
    border-left: 3px solid var(--line);
    border-radius: 14px;
    padding: 0 22px;
    box-shadow: var(--shadow-card);
    transition: border-color .18s ease, box-shadow .18s ease;
  }

  .pg-faq-item:hover { box-shadow: var(--shadow-hover); }
  .pg-faq-item[open] { border-left-color: var(--brand); }

  .pg-faq-item summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    padding: 20px 0;
    font-size: 16px;
    font-weight: 600;
    color: var(--ink);
  }

  .pg-faq-item summary::-webkit-details-marker { display: none; }
  .pg-faq-item summary:focus-visible {
    outline: 2px solid var(--brand);
    outline-offset: 3px;
    border-radius: 6px;
  }

  .pg-faq-icon {
    flex: 0 0 auto;
    color: var(--brand);
    transition: transform .2s ease;
    margin-top: 4px;
  }

  .pg-faq-item[open] .pg-faq-icon { transform: rotate(45deg); }

  .pg-faq-body {
    padding: 0 0 20px;
    font-size: 15px;
    line-height: 1.75;
    color: var(--ink-2);
    border-top: 1px solid var(--line);
    padding-top: 16px;
  }

  /* ---------- 结尾 CTA ---------- */
  .pg-cta {
    margin-top: 64px;
    background: var(--brand-soft);
    border: 1px solid #D3E4F1;
    border-radius: 20px;
    padding: 48px 40px;
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
  }

  .pg-cta h2 {
    margin: 0;
    font-size: 26px;
    font-weight: 700;
    line-height: 1.3;
    color: var(--brand-deep);
  }

  .pg-cta p {
    margin: 10px 0 0;
    font-size: 15px;
    color: var(--ink-2);
    max-width: 620px;
  }

  .pg-cta-actions {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
  }

  /* ---------- 浮动 CTA ---------- */
  .pg-float-cta {
    position: fixed;
    right: 24px;
    bottom: 24px;
    z-index: 45;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--brand);
    color: #fff;
    border-radius: var(--radius-pill);
    font-size: 14px;
    font-weight: 600;
    box-shadow: 0 12px 28px -14px rgba(29, 92, 143, .85);
    opacity: 0;
    visibility: hidden;
    transform: translateY(10px);
    transition: opacity .2s ease, transform .2s ease, visibility .2s ease, background-color .18s ease;
  }

  .pg-float-cta.show {
    opacity: 1;
    visibility: visible;
    transform: none;
  }

  .pg-float-cta:hover { background: var(--brand-deep); }

  /* ---------- 页脚 ---------- */
  .pg-footer {
    margin-top: 96px;
    background: var(--brand-deep);
    color: #C9D8E4;
    padding: 64px 0 28px;
  }

  .pg-footer-grid {
    display: grid;
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 40px;
  }

  .pg-footer .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 17px;
    font-weight: 700;
    margin-bottom: 16px;
  }

  .pg-footer .pg-logo-mark { background: rgba(255, 255, 255, .16); }

  .pg-footer .about {
    font-size: 14px;
    line-height: 1.75;
    color: #B6C9D9;
    max-width: 320px;
    margin: 0;
  }

  .pg-footer .contact {
    font-size: 14px;
    color: #B6C9D9;
    margin: 14px 0 0;
  }

  .pg-footer h4 {
    margin: 0 0 16px;
    font-size: 14px;
    font-weight: 600;
    color: #fff;
  }

  .pg-footer ul {
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .pg-footer li { margin-bottom: 10px; }

  .pg-footer ul a {
    font-size: 14px;
    color: #C9D8E4;
    transition: color .18s ease;
  }

  .pg-footer ul a:hover {
    color: #fff;
    text-decoration: underline;
  }

  .pg-footer-bottom {
    margin-top: 48px;
    padding-top: 20px;
    border-top: 1px solid rgba(255, 255, 255, .14);
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
    font-size: 13px;
    color: #9FB5C7;
  }

  /* ---------- 入场动效 ---------- */
  .reveal {
    opacity: 0;
    transform: translateY(12px);
    transition: opacity .55s ease, transform .55s ease;
  }
  .reveal.in {
    opacity: 1;
    transform: none;
  }

  @media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    .reveal { opacity: 1; transform: none; transition: none; }
    .pg-point-card, .pg-float-cta, .pg-dock { transition: none; }
  }

  /* ---------- 响应式 ---------- */
  @media (max-width: 1023px) {
    .pg-nav,
    .pg-dock .pg-search { display: none; }
    .pg-burger { display: inline-flex; }
    .pg-footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
    .pg-hero h1 { font-size: 32px; }
    .pg-h2 { font-size: 26px; }
  }

  @media (max-width: 768px) {
    .pg-container { padding: 0 20px; }
    .pg-header { top: 10px; padding-top: 10px; margin-bottom: 20px; }

    .pg-dock {
      height: 58px;
      padding: 0 12px 0 14px;
      gap: 10px;
    }
    .pg-dock.is-scrolled { height: 54px; }
    .pg-brand-text { font-size: 15px; }
    .pg-dock-right .pg-btn { display: none; }

    .pg-hero {
      min-height: 240px;
      padding: 24px 20px 28px;
      border-radius: 16px;
    }
    .pg-hero h1 { font-size: 28px; }
    .pg-hero .sub { font-size: 15px; }

    .pg-section { padding-top: 44px; }
    .pg-h2 { font-size: 24px; }
    .pg-points { grid-template-columns: 1fr; gap: 16px; }
    .pg-point-card { padding: 22px; }
    .pg-faq-grid { grid-template-columns: 1fr; gap: 14px; }
    .pg-cta {
      padding: 32px 22px;
      margin-top: 48px;
      border-radius: 16px;
    }
    .pg-cta h2 { font-size: 22px; }
    .pg-cta-actions { width: 100%; }
    .pg-cta-actions .pg-btn { flex: 1 1 auto; }

    .pg-footer { margin-top: 64px; padding: 48px 0 24px; }
    .pg-footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .pg-footer-bottom { flex-direction: column; }

    body { padding-bottom: 76px; }

    .pg-float-cta {
      left: 0;
      right: 0;
      bottom: 0;
      justify-content: center;
      border-radius: 0;
      padding: 16px 20px;
      padding-bottom: calc(16px + env(safe-area-inset-bottom));
      transform: translateY(100%);
      box-shadow: 0 -8px 24px -16px rgba(15, 28, 42, .5);
    }
    .pg-float-cta.show { transform: none; }
  }

  @media (max-width: 520px) {
    .pg-hero h1 { font-size: 25px; }
    .pg-table tbody td { padding: 14px 16px; font-size: 14px; }
    .pg-table thead th { padding: 14px 16px; }
  }