:root{
    --green-deep:#1a4d2e;
    --green-accent:#2e7d5e;
    --bg-soft:#f2f8f4;
    --card-soft:#e6f0ea;
    --line-soft:#b3d9c2;
    --text-main:#1e2a3a;
    --text-sub:#4a5a6a;
    --white:#ffffff;
  }
  *{margin:0;padding:0;box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    font-family:"Noto Sans SC","Source Han Sans SC","Source Han Sans CN","Noto Sans CJK SC",Arial,sans-serif;
    font-size:22px;
    line-height:1.7;
    color:var(--text-main);
  }
  .content{
    display: flex;
    background:linear-gradient(180deg,#eaf4ee 0%,var(--bg-soft) 320px,var(--bg-soft) 100%);
    background-image: url("./bg_20260825_02.png");
    background-position: center bottom;
    background-size: 100% auto;
    background-repeat: no-repeat;
    background-color: #f2f8f4;
  }
  .page{max-width:1526px;margin:0 auto;padding:0 24px 24px;}

  /* ---------- 主标题区（通栏横幅，含单位名称与来源信息） ---------- */
  .hero{
    width:100%;padding:0 24px 66px;text-align:center;
    background:url("./bg_20260825_01.png") center center/cover no-repeat;
    color:var(--white);position:relative;overflow:hidden;
  }
  .hero::before,.hero::after{
    content:none;
  }
  .hero-inner{max-width:1526px;margin:0 auto;position:relative;z-index:1;}

  /* 横幅顶部标识区 */
  .hero-top{
    display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:14px;
    padding:26px 0 30px;text-align:left;
  }
  .agency{display:flex;align-items:center;flex:none;}
  .agency-logo{
    display:block;
    width:min(277px,42vw);
    height:auto;
  }
  .meta-tags{
    display:flex;gap:14px;flex-wrap:wrap;justify-content:center;
    margin-top:58px;position:relative;z-index:1;
  }
  .meta-tag{
    display:inline-flex;align-items:center;gap:10px;
    color:#fff;font-size:14px;white-space:nowrap;
    background:rgb(68 125 103 / 35%);
    backdrop-filter:blur(10px) saturate(1.1);
    -webkit-backdrop-filter:blur(10px) saturate(1.1);
    padding:9px 18px 9px 14px;border-radius:999px;
    box-shadow:0 6px 18px rgba(0,0,0,.14),inset 0 1px 0 rgba(255,255,255,.18);
    position:relative;letter-spacing:.3px;
    text-shadow:0 1px 4px rgba(0,0,0,.28);
  }
  .meta-tag svg{flex:none;opacity:.95;}
  .meta-tag .meta-label{
    color:rgba(255,255,255,.8);font-size:12.5px;
    border-radius:999px;
    margin-right:-2px;
  }
  .back-home{
    display:inline-flex;align-items:center;gap:8px;flex:none;
    background:rgba(255,255,255,.15);color:#fff;text-decoration:none;
    border:1px solid rgba(255,255,255,.45);border-radius:999px;
    padding:7px 20px;font-size:14px;letter-spacing:1px;
    transition:background .25s ease,transform .25s ease;
  }
  .back-home:hover{background:rgba(255,255,255,.28);transform:translateY(-2px);}
  .hero-divider{
    height:1px;margin-bottom:40px;
  }
  .hero-title-image{
    display:block;
    width:min(100%,1170px);
    height:auto;
    margin:0 auto 24px;
    position:relative;
    z-index:1;
  }
  .hero-summary{display:none;}

  /* ---------- 章节通用 ---------- */
  .section{
    margin-top:36px;background:var(--white);
    border:1px solid var(--line-soft);border-radius:16px;
    padding:40px 44px;box-shadow:0 4px 18px rgba(26,77,46,.05);
  }
  .section-title{
    display:flex;align-items:center;gap:14px;
    font-size:28px;font-weight:700;color:var(--green-deep);margin-bottom:24px;
  }
  .section-title .num{
    flex:none;width:42px;height:42px;border-radius:50%;
    background:linear-gradient(135deg,var(--green-accent),var(--green-deep));
    color:#fff;
    display:flex;align-items:center;justify-content:center;
    box-shadow:0 3px 10px rgba(46,125,94,.3);
  }
  .section-title .num svg{width:22px;height:22px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
  .section-title::after{
    content:"";flex:1;height:2px;border-radius:1px;
    background:linear-gradient(90deg,var(--line-soft),transparent);
  }
  .section p{margin-bottom:16px;text-align:justify;text-indent:2em;}
  #thinking p{margin-bottom:0;line-height: 40px;}
  .section p:last-child{margin-bottom:0;}
  .doc-ref{color:var(--green-accent);font-weight:600;}
  .section-body{
    display:flex;align-items:flex-start;gap:34px;
    position:relative;align-items: stretch;
  }
    #thinking .section-body{gap:0;}
  .section-text{flex:1;min-width:0;}
  .section-with-illustration .section-text p:last-child{margin-bottom:0;}
  .section-illustration{
    flex:none;width:280px;
    display:flex;align-items:flex-start;justify-content:flex-end;
  }
  .section-illustration img{
    display:block;width:auto;height:100%;
  }
  #background img{
    width:100%;height:auto;
  }
  .background-body{align-items:stretch;}
  .background-text-main{flex:1;min-width:0;}
  .background-text-full{
    margin-top:16px;
  }
  .background-text-full p{margin-bottom:0;}

  /* ---------- 主要内容五章卡片 ---------- */
  .chapter-intro{margin-bottom:28px;}
  .chapter-grid{
    display:grid;
    grid-template-columns:repeat(12,1fr);
    gap:20px;
  }
  .chapter-card{grid-column:span 4;}
  .chapter-card.card-span-3{grid-column:span 3;}
  .chapter-card.card-span-4{grid-column:span 4;}
  .chapter-card.card-span-5{grid-column:span 5;}
  .chapter-card.card-span-6{grid-column:span 6;}
  .chapter-card.card-span-7{grid-column:span 7;}
  .chapter-card{
    position:relative;overflow:hidden;
    background:#fff;
    border:1px solid #cfe3d4;
    border-radius:18px;
    padding:22px 22px 22px 22px;min-height:180px;
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
    cursor:default;
  }
  .chapter-card:hover{
    transform:translateY(-3px);
    border-color:#9fc7aa;
    box-shadow:0 12px 26px rgba(26,77,46,.1);
  }
  .chapter-head{
    display:flex;align-items:center;gap:12px;margin-bottom:8px;
  }
  .chapter-no{
    flex:none;width:44px;height:44px;border-radius:10px;
    background:linear-gradient(135deg,var(--green-accent) 0%,var(--green-deep) 100%);
    color:#fff;font-size:16px;font-weight:700;letter-spacing:1px;
    display:flex;align-items:center;justify-content:center;
    box-shadow:0 5px 12px rgba(26,77,46,.2);
  }
  .chapter-name{
    font-size:22px;line-height:1.35;font-weight:700;color:var(--green-deep);
    letter-spacing:.3px;margin:0;
    white-space:nowrap;
  }
  .chapter-body{
    display:flex;align-items:stretch;gap:14px;
  }
  .chapter-body .chapter-meta{flex:1;min-width:0;}
  .chapter-range{
    font-size:20px;color:var(--green-accent);font-weight:700;
    margin:2px 0 8px 0;text-indent:2em;
  }
  .chapter-desc{
    font-size:20px;line-height:1.8;color:#425568;text-indent:0;
    margin:0;
  }
  .chapter-illus{
    flex:none;width:110px;height:110px;align-self:flex-end;
    display:flex;align-items:flex-end;justify-content:flex-end;
    opacity:.9;
  }
  .chapter-illus svg{width:100%;height:100%;}

  /* ---------- 相关政策法规 ---------- */
  .policy-link-card{
    display:flex;align-items:center;gap:16px;
    background:var(--bg-soft);border:1px solid var(--line-soft);
    border-left:5px solid var(--green-accent);border-radius:12px;
    padding:22px 26px;text-decoration:none;color:var(--text-main);
    transition:transform .25s ease,box-shadow .25s ease,background .25s ease;
  }
  .policy-link-card:hover{
    transform:translateY(-3px);background:var(--card-soft);
    box-shadow:0 8px 20px rgba(26,77,46,.12);
  }
  .policy-icon{
    flex:none;width:46px;height:46px;border-radius:10px;
    background:linear-gradient(135deg,var(--green-accent),var(--green-deep));
    color:#fff;display:flex;align-items:center;justify-content:center;
  }
  .policy-icon svg{width:24px;height:24px;fill:none;stroke:#fff;stroke-width:1.8;stroke-linecap:round;stroke-linejoin:round;}
  .policy-text .label{font-size:13px;color:var(--green-accent);font-weight:700;letter-spacing:1px;margin-bottom:4px;}
  .policy-text .title{font-size:20px;font-weight:600;line-height:1.6;}
  .policy-text .title:hover{color:var(--green-accent);}
  .policy-arrow{margin-left:auto;color:var(--green-accent);flex:none;display:flex;align-items:center;justify-content:center;width:28px;height:28px;border-radius:8px;background:rgba(46,125,94,.08);}
  .policy-arrow svg{width:18px;height:18px;fill:none;}

  /* ---------- 响应式 ---------- */
  @media (max-width:768px){
    body{font-size:15px;}
    .page{padding:0 14px 48px;}
    .hero{padding:0 16px 40px;}
    .hero-top{padding:20px 0 24px;}
    .hero-divider{margin-bottom:28px;}
    .agency-logo{width:min(220px,58vw);}
    .hero-title-image{width:min(100%,720px);margin-bottom:20px;}
    .meta-tags{gap:10px;margin-top:18px;flex-wrap: nowrap;}
    .meta-tag{
      font-size:12.5px;gap:8px;
      padding:7px 14px 7px 11px;
      backdrop-filter:blur(8px) saturate(1.1);
      -webkit-backdrop-filter:blur(8px) saturate(1.1);
    }
    .meta-tag::before{width:7px;height:7px;}
    .meta-tag svg{width:13px;height:13px;}
    .meta-tag .meta-label{font-size:11.5px;padding:1.5px 7px;}
    .hero-summary{font-size:14px;padding:12px 16px;}
    .section{padding:28px 22px;}
    .section-title{font-size:20px;}
    .section-title .num{width:36px;height:36px;font-size:16px;}
    .section-body{flex-direction:column;gap:18px;}
    .section-with-illustration .section-illustration{display:none;}
    .background-text-full{margin-top:0;padding-top:0;border-top:none;}
    .background-text-full{margin-top:16px;}
    #thinking p {line-height: unset;}
    .chapter-grid{grid-template-columns:1fr;gap:14px;}
    .chapter-card,.chapter-card[class*="card-span-"]{grid-column:span 1;}
    .chapter-card{padding:18px 18px 18px 16px;min-height:130px;border-radius:16px;}
    .chapter-head{gap:10px;margin-bottom:6px;}
    .chapter-no{width:38px;height:38px;border-radius:9px;font-size:14px;}
    .chapter-name{font-size:18px;white-space:normal;}
    .chapter-body{gap:12px;flex-direction:column;}
    .chapter-range{font-size:14px;margin:2px 0 6px 0;}
    .chapter-desc{font-size:14px;line-height:1.75;}
    .chapter-illus{width:86px;height:86px;align-self:flex-end;}
    .policy-link-card{padding:18px 20px;}
    .policy-arrow{display:none;}
  }