/* roulang page: index */
:root{
    --ck-deep:#0B5C56;
    --ck-main:#12857A;
    --ck-light:#3FBFA8;
    --ck-orange:#F0871F;
    --ck-amber:#FFC46B;
    --ck-mist:#F4F7F6;
    --ck-white:#FFFFFF;
    --ck-line:#DDE5E3;
    --ck-night:#0A1F1E;
    --ck-ink:#14201E;
    --ck-body:#4E5D5A;
    --ck-aux:#8A9895;
    --ck-success:#2E9E6B;
    --ck-warn:#D9533F;
    --ck-badge:#E4F2EF;
    --r-lg:24px;
    --r-md:16px;
    --r-sm:12px;
    --sh-1:0 12px 32px rgba(11,92,86,.08);
    --sh-2:0 20px 48px rgba(11,92,86,.16);
  }
  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
  body{
    margin:0;
    font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
    background:var(--ck-mist);
    color:var(--ck-body);
    font-size:16px;
    line-height:1.75;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button,input,textarea,select{font:inherit;color:inherit;}
  :focus-visible{outline:3px solid rgba(63,191,168,.5);outline-offset:2px;border-radius:8px;}
  .wrap{max-width:1240px;margin:0 auto;padding:0 20px;}
  @media (min-width:768px){ .wrap{padding:0 32px;} }

  .sec{padding:28px 0;}
  @media (min-width:768px){ .sec{padding:48px 0;} }

  h1,h2,h3,h4{margin:0;color:var(--ck-ink);line-height:1.25;letter-spacing:0;font-weight:700;}
  .h1{font-size:clamp(30px,4.2vw,44px);font-weight:800;line-height:1.2;}
  .h2{font-size:clamp(23px,3vw,30px);}
  .h3{font-size:clamp(18px,2vw,20px);font-weight:600;}
  .lead{font-size:clamp(15px,1.4vw,17px);color:var(--ck-body);line-height:1.85;}
  .aux{font-size:13px;color:var(--ck-aux);}

  .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--ck-main);}
  .eyebrow::before{content:"";width:18px;height:2px;border-radius:2px;background:var(--ck-orange);}

  .logo-mark{
    width:36px;height:36px;border-radius:11px;flex:0 0 auto;
    background:linear-gradient(135deg,#0B5C56,#12857A 55%,#3FBFA8);
    color:#fff;display:flex;align-items:center;justify-content:center;
    font-weight:700;font-size:16px;box-shadow:0 6px 16px rgba(11,92,86,.22);
  }

  /* ===== 左侧竖向导航 ===== */
  .side-nav{
    width:264px;
    transform:translateX(-100%);
    transition:transform .3s ease,width .26s ease,box-shadow .26s ease;
    overflow-y:auto;
    overscroll-behavior:contain;
    border-right:1px solid var(--ck-line);
  }
  .side-nav.open{transform:translateX(0);box-shadow:var(--sh-2);}
  .nav-item{
    display:flex;align-items:center;gap:12px;
    min-height:44px;padding:10px 14px;border-radius:12px;
    font-size:15px;font-weight:500;color:var(--ck-body);
    position:relative;transition:background .2s ease,color .2s ease;
  }
  .nav-item:hover{color:var(--ck-main);background:rgba(228,242,239,.75);}
  .nav-item.active{background:var(--ck-badge);color:var(--ck-main);font-weight:600;}
  .nav-item.active::before{
    content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
    border-radius:0 3px 3px 0;background:var(--ck-orange);
  }
  .side-foot{display:block;}
  @media (min-width:1024px){
    .side-nav{transform:translateX(0);width:88px;}
    .nav-label,.brand-text,.side-foot{display:none;}
    .nav-item,.brand-row{justify-content:center;}
    .nav-item{padding-left:0;padding-right:0;}
  }
  @media (min-width:1024px) and (max-width:1279px){
    .side-nav:hover{width:232px;box-shadow:var(--sh-2);}
    .side-nav:hover .nav-label,
    .side-nav:hover .brand-text,
    .side-nav:hover .side-foot{display:block;}
    .side-nav:hover .nav-item,
    .side-nav:hover .brand-row{justify-content:flex-start;}
    .side-nav:hover .nav-item{padding-left:14px;padding-right:14px;}
  }
  @media (min-width:1280px){
    .side-nav{width:232px;}
    .nav-label,.brand-text,.side-foot{display:block;}
    .nav-item,.brand-row{justify-content:flex-start;}
  }

  /* ===== 按钮 ===== */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 22px;border-radius:var(--r-sm);
    font-size:15px;font-weight:600;border:1px solid transparent;
    cursor:pointer;transition:transform .2s ease,background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;
    text-align:center;
  }
  .btn-primary{background:var(--ck-main);color:#fff;box-shadow:0 8px 20px rgba(18,133,122,.26);}
  .btn-primary:hover{background:#17A091;transform:translateY(-1px);box-shadow:0 14px 28px rgba(18,133,122,.34);}
  .btn-primary:active{transform:translateY(0);}
  .btn-ghost{background:#fff;color:var(--ck-main);border-color:rgba(11,92,86,.22);}
  .btn-ghost:hover{background:var(--ck-badge);transform:translateY(-1px);}
  .btn-quiet{background:transparent;color:var(--ck-main);}
  .btn-quiet:hover{background:var(--ck-badge);}
  .btn-light{background:#fff;color:var(--ck-deep);border-color:#fff;}
  .btn-light:hover{background:#EAF6F3;transform:translateY(-1px);}

  /* ===== 徽章 ===== */
  .badge{
    display:inline-flex;align-items:center;gap:7px;
    padding:4px 12px;border-radius:999px;
    background:var(--ck-badge);color:var(--ck-main);
    font-size:12px;font-weight:500;font-variant-numeric:tabular-nums;
    white-space:nowrap;
  }
  .badge::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--ck-orange);flex:0 0 auto;}
  .badge-plain::before{display:none;}
  .badge-solid{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 12px;border-radius:999px;background:#fff;color:var(--ck-deep);
    font-size:12px;font-weight:600;box-shadow:0 6px 16px rgba(11,92,86,.16);
    font-variant-numeric:tabular-nums;
  }
  .badge-bright{
    display:inline-flex;align-items:center;gap:8px;width:fit-content;
    padding:6px 14px;border-radius:999px;
    background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.3);
    color:#fff;font-size:13px;letter-spacing:.02em;
    -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
  }
  .chip{
    display:inline-flex;align-items:center;gap:8px;
    padding:7px 14px;border-radius:999px;
    background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.26);
    color:#fff;font-size:13px;font-weight:500;
    -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
    font-variant-numeric:tabular-nums;
  }
  .chip::before{content:"";width:6px;height:6px;border-radius:999px;background:var(--ck-amber);flex:0 0 auto;}

  /* ===== 卡片 ===== */
  .card{
    background:#fff;border:1px solid rgba(11,92,86,.10);border-radius:var(--r-md);
    box-shadow:var(--sh-1);
    transition:transform .26s ease,box-shadow .26s ease,border-color .26s ease;
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(11,92,86,.20);}
  .card-lg{border-radius:var(--r-lg);}

  .link-more{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14px;font-weight:600;color:var(--ck-main);
    transition:color .2s ease,gap .2s ease;
  }
  .link-more:hover{color:var(--ck-orange);gap:10px;}

  .li-check{display:flex;gap:10px;font-size:14px;line-height:1.75;color:var(--ck-body);}
  .li-check::before{
    content:"";flex:0 0 auto;width:16px;height:16px;margin-top:5px;border-radius:999px;
    background:var(--ck-badge);
    background-image:url("data:image/svg+xml;utf8,<svg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'><path d='M4.2 8.3l2.4 2.4 5-5.2' fill='none' stroke='%2312857A' stroke-width='1.8' stroke-linecap='round' stroke-linejoin='round'/></svg>");
    background-size:16px 16px;
  }

  .step-num{
    width:48px;height:48px;border-radius:999px;border:2px solid var(--ck-orange);
    color:var(--ck-orange);background:#fff;
    display:flex;align-items:center;justify-content:center;
    font-weight:700;font-size:16px;font-variant-numeric:tabular-nums;
    box-shadow:0 8px 20px rgba(240,135,31,.16);
  }

  .media-frame{overflow:hidden;border-radius:20px;border:1px solid rgba(11,92,86,.10);box-shadow:var(--sh-1);background:#fff;}
  .media-frame img{transition:transform .5s ease;}
  .media-frame:hover img{transform:scale(1.035);}

  /* ===== 进度 ===== */
  .track{position:absolute;inset:0;border-radius:999px;background:#E3E8E6;overflow:hidden;}
  .track-fill{
    position:absolute;left:0;top:0;bottom:0;width:68%;border-radius:999px;
    background:linear-gradient(90deg,#12857A,#3FBFA8 58%,#F0871F);
  }
  .node{
    position:absolute;top:50%;transform:translate(-50%,-50%);
    width:16px;height:16px;border-radius:999px;background:#fff;
    border:3px solid #C9D4D1;
  }
  .node-done{background:var(--ck-main);border-color:var(--ck-main);}
  .node-active{border-color:var(--ck-orange);background:#fff;box-shadow:0 0 0 5px rgba(240,135,31,.16);}
  .stage-card{
    background:#fff;border:1px solid rgba(11,92,86,.10);border-radius:var(--r-md);
    padding:16px;transition:transform .24s ease,box-shadow .24s ease;
  }
  .stage-card:hover{transform:translateY(-3px);box-shadow:var(--sh-1);}
  .stage-card.current{border-color:rgba(240,135,31,.5);background:#FFF8EF;}

  /* ===== 时间轴（移动端） ===== */
  .tl-item{position:relative;padding-left:34px;padding-bottom:22px;}
  .tl-item:last-child{padding-bottom:0;}
  .tl-item::before{
    content:"";position:absolute;left:7px;top:22px;bottom:0;width:2px;background:var(--ck-line);
  }
  .tl-item:last-child::before{display:none;}
  .tl-dot{
    position:absolute;left:0;top:4px;width:16px;height:16px;border-radius:999px;
    background:#fff;border:3px solid #C9D4D1;
  }
  .tl-dot.done{background:var(--ck-main);border-color:var(--ck-main);}
  .tl-dot.current{border-color:var(--ck-orange);background:#fff;box-shadow:0 0 0 4px rgba(240,135,31,.16);}

  /* ===== CTA 条 ===== */
  .cta-band{
    position:relative;overflow:hidden;border-radius:var(--r-lg);
    background:linear-gradient(135deg,#0B5C56 0%,#12857A 55%,#3FBFA8 100%);
    padding:30px 24px;color:#fff;
    display:flex;flex-direction:column;gap:20px;
    box-shadow:0 20px 48px rgba(11,92,86,.24);
  }
  .cta-band::after{
    content:"";position:absolute;right:-60px;bottom:-80px;width:340px;height:340px;
    border-radius:999px;pointer-events:none;
    background:radial-gradient(circle,rgba(240,135,31,.34),rgba(240,135,31,0) 68%);
  }
  .cta-band > *{position:relative;z-index:1;}
  @media (min-width:768px){
    .cta-band{flex-direction:row;align-items:center;justify-content:space-between;padding:34px 40px;gap:32px;}
  }

  /* ===== FAQ ===== */
  .faq-item{
    background:#fff;border:1px solid rgba(11,92,86,.10);border-radius:var(--r-md);
    overflow:hidden;transition:background .22s ease,box-shadow .22s ease;
  }
  .faq-item + .faq-item{margin-top:12px;}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    padding:18px 20px;min-height:44px;text-align:left;background:transparent;border:0;cursor:pointer;
    font-size:16px;font-weight:600;color:var(--ck-ink);
  }
  .faq-icon{
    flex:0 0 auto;width:22px;height:22px;position:relative;
  }
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--ck-main);border-radius:2px;
    transition:transform .22s ease,opacity .22s ease,background .22s ease;
  }
  .faq-icon::before{width:12px;height:2px;transform:translate(-50%,-50%);}
  .faq-icon::after{width:2px;height:12px;transform:translate(-50%,-50%);}
  .faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
  .faq-a{
    max-height:0;overflow:hidden;padding:0 20px;
    font-size:15px;line-height:1.85;color:var(--ck-body);
    transition:max-height .26s ease,padding .26s ease;
  }
  .faq-item.open{background:#EAF6F3;box-shadow:inset 3px 0 0 var(--ck-orange);}
  .faq-item.open .faq-a{max-height:360px;padding-bottom:18px;}
  .faq-item.open .faq-icon::before{background:var(--ck-orange);}

  /* ===== 表单 ===== */
  .field{
    width:100%;min-height:44px;padding:11px 14px;border-radius:var(--r-sm);
    border:1px solid var(--ck-line);background:#fff;color:var(--ck-ink);
    font-size:15px;outline:none;
    transition:border-color .2s ease,box-shadow .2s ease;
  }
  .field::placeholder{color:#A6B2AF;}
  .field:focus{border-color:var(--ck-main);box-shadow:0 0 0 3px rgba(63,191,168,.28);}
  .field.invalid{border-color:var(--ck-warn);box-shadow:0 0 0 3px rgba(217,83,63,.14);}
  .err{font-size:13px;color:var(--ck-warn);margin:6px 0 0;line-height:1.6;}

  /* ===== 页脚 ===== */
  .f-link{color:#B9C6C3;font-size:14px;line-height:2;transition:color .2s ease;}
  .f-link:hover{color:var(--ck-amber);}
  .f-title{font-size:14px;font-weight:600;color:#fff;margin:0 0 12px;}

  /* ===== 文本截断 ===== */
  .clamp-2{display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
  .clamp-3{display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;}

/* roulang page: category1 */
:root{
  --teal-900:#0B5C56;
  --teal-600:#12857A;
  --teal-300:#3FBFA8;
  --orange:#F0871F;
  --orange-200:#FFC46B;
  --mist:#F4F7F6;
  --card:#FFFFFF;
  --line:#DDE5E3;
  --night:#0A1F1E;
  --ink:#14201E;
  --ink-2:#4E5D5A;
  --ink-3:#8A9895;
  --soft-teal:#E4F2EF;
  --ok:#2E9E6B;
  --warn:#D9533F;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh-1:0 12px 32px rgba(11,92,86,.08);
  --sh-2:0 20px 48px rgba(11,92,86,.16);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  color:var(--ink-2);
  background:var(--mist);
  letter-spacing:0;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button{font-family:inherit}
:focus-visible{outline:3px solid rgba(63,191,168,.45);outline-offset:2px;border-radius:8px}
.num{font-variant-numeric:tabular-nums}

/* ---------- 品牌标识 ---------- */
.logo-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  background:linear-gradient(135deg,#0B5C56 0%,#12857A 55%,#3FBFA8 100%);
  color:#fff;font-size:15px;font-weight:800;line-height:1;
  box-shadow:0 8px 18px rgba(11,92,86,.18);
}

/* ---------- 侧栏导航 ---------- */
.sidenav{
  position:fixed;top:0;left:0;bottom:0;width:232px;z-index:45;
  background:#fff;border-right:1px solid var(--line);
  display:flex;flex-direction:column;overflow-y:auto;
  padding:20px 14px 18px;
}
.nav-item{
  position:relative;display:flex;align-items:center;gap:12px;
  min-height:46px;padding:0 14px;border-radius:var(--r-sm);
  font-size:14.5px;font-weight:500;color:var(--ink-2);
  transition:background .2s ease,color .2s ease;
}
.nav-item svg{flex:0 0 20px}
.nav-item:hover{background:var(--soft-teal);color:var(--teal-900)}
.nav-item.active{background:var(--soft-teal);color:var(--teal-900);font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:-14px;top:50%;transform:translateY(-50%);
  width:3px;height:22px;border-radius:0 3px 3px 0;background:var(--orange);
}
.nav-text{white-space:nowrap}
.side-cta{
  display:flex;align-items:center;justify-content:center;
  min-height:44px;border-radius:var(--r-sm);
  background:var(--teal-600);color:#fff;font-size:14px;font-weight:600;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
  box-shadow:0 10px 22px rgba(18,133,122,.22);
}
.side-cta:hover{background:#0f766c;transform:translateY(-1px);box-shadow:0 14px 28px rgba(18,133,122,.28)}
.side-cta:active{transform:translateY(0)}

/* ---------- 内容区 ---------- */
.page{margin-left:232px;min-height:100vh;display:flex;flex-direction:column}
.wrap{width:100%;max-width:1240px;margin:0 auto;padding-left:32px;padding-right:40px}
main{flex:1 1 auto;padding-top:24px;padding-bottom:8px}

@media (max-width:1279px) and (min-width:1024px){
  .sidenav{width:88px;padding-left:12px;padding-right:12px;align-items:center}
  .page{margin-left:88px}
  .nav-item{justify-content:center;padding:0;width:56px}
  .nav-text{display:none}
  .nav-item:hover .nav-text{
    display:block;position:absolute;left:64px;top:50%;transform:translateY(-50%);
    background:var(--night);color:#fff;padding:6px 12px;border-radius:10px;
    font-size:13px;font-weight:500;white-space:nowrap;z-index:60;box-shadow:var(--sh-2);
  }
  .side-cta{width:56px;padding:0;font-size:13px}
  .side-brand-text{display:none}
  .wrap{padding-left:28px;padding-right:32px}
}
@media (max-width:1023px){
  .sidenav{display:none}
  .page{margin-left:0;padding-top:64px}
  .wrap{padding-left:18px;padding-right:18px}
}

/* ---------- 移动抽屉 ---------- */
.drawer-link{
  display:flex;align-items:center;gap:12px;min-height:48px;
  padding:0 14px;border-radius:var(--r-sm);font-size:15px;font-weight:500;color:var(--ink-2);
}
.drawer-link:hover,.drawer-link.active{background:var(--soft-teal);color:var(--teal-900)}

/* ---------- 按钮 ---------- */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-sm);border:1px solid transparent;
  background:var(--teal-900);color:#fff;font-size:15px;font-weight:600;
  transition:filter .2s ease,transform .2s ease,box-shadow .2s ease;
  box-shadow:0 10px 24px rgba(11,92,86,.22);cursor:pointer;
}
.btn-primary:hover{filter:brightness(1.06);transform:translateY(-1px);box-shadow:0 16px 32px rgba(11,92,86,.28)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;border-radius:var(--r-sm);
  background:#fff;color:var(--teal-900);border:1px solid rgba(11,92,86,.4);
  font-size:15px;font-weight:600;transition:background .2s ease,transform .2s ease;cursor:pointer;
}
.btn-ghost:hover{background:var(--soft-teal);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 26px;border-radius:var(--r-sm);
  background:#fff;color:var(--teal-900);font-size:15px;font-weight:700;
  transition:transform .2s ease,box-shadow .2s ease;cursor:pointer;
}
.btn-light:hover{transform:translateY(-1px);box-shadow:0 14px 30px rgba(10,31,30,.28)}
.btn-light:active{transform:translateY(0)}

/* ---------- KV 横幅 ---------- */
.kv{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  min-height:320px;display:flex;align-items:flex-end;
  background-image:linear-gradient(135deg,rgba(11,92,86,.90) 0%,rgba(18,133,122,.82) 48%,rgba(10,31,30,.88) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  box-shadow:var(--sh-1);
}
.kv::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:360px;height:360px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,135,31,.35) 0%,rgba(240,135,31,0) 68%);
  pointer-events:none;
}
.kv-inner{position:relative;z-index:2;padding:44px 40px 40px;width:100%}
@media (max-width:639px){.kv{min-height:250px}.kv-inner{padding:28px 20px 26px}}

/* ---------- 面包屑 ---------- */
.crumbs{font-size:13px;color:var(--ink-3);display:flex;align-items:center;gap:8px;flex-wrap:wrap}
.crumbs a{color:var(--teal-600);transition:color .2s ease}
.crumbs a:hover{color:var(--orange)}
.crumbs .cur{color:var(--ink-3)}

/* ---------- 徽章 ---------- */
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--soft-teal);color:var(--teal-900);
  font-size:13px;font-weight:600;
}
.chip .dot{width:6px;height:6px;border-radius:50%;background:var(--orange);flex:0 0 6px}
.chip-ghost{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 16px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:13px;font-weight:500;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}

/* ---------- 卡片 ---------- */
.card{
  background:var(--card);border:1px solid rgba(11,92,86,.10);border-radius:var(--r-md);
  box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(18,133,122,.28)}
.card-lg{border-radius:var(--r-lg)}
.card-pad{padding:24px}
@media (max-width:639px){.card-pad{padding:20px}}

/* ---------- 板块标题 ---------- */
.sec{margin-top:96px}
.sec:first-of-type{margin-top:44px}
@media (max-width:767px){.sec{margin-top:56px}}
h1,h2,h3,h4{font-family:inherit;color:var(--ink);margin:0}
.h1{font-size:clamp(30px,4.4vw,44px);font-weight:800;line-height:1.25;color:#fff}
.h2{font-size:clamp(23px,3vw,30px);font-weight:700;line-height:1.25}
.h3{font-size:19px;font-weight:600;line-height:1.4}
.lead{font-size:clamp(15px,1.6vw,17px);line-height:1.9;color:var(--ink-2)}
.eyebrow{
  font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--teal-600);
  display:inline-flex;align-items:center;gap:10px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--orange)}

/* ---------- 正文排版 ---------- */
.prose-c{font-size:17px;line-height:1.9;color:var(--ink-2);max-width:820px}
.prose-c p{margin:0 0 20px}
.prose-c strong{color:var(--ink);font-weight:600}

/* ---------- 规格清单表 ---------- */
.tbl-wrap{overflow-x:auto;border:1px solid var(--line);border-radius:var(--r-md);background:#fff;box-shadow:var(--sh-1)}
table.spec{width:100%;min-width:620px;border-collapse:collapse;font-size:14.5px}
table.spec thead th{
  background:var(--soft-teal);color:var(--teal-900);font-weight:600;text-align:left;
  padding:15px 20px;font-size:14px;white-space:nowrap;
}
table.spec tbody td{padding:15px 20px;border-top:1px solid var(--line);color:var(--ink-2);vertical-align:top}
table.spec tbody tr:nth-child(even){background:#FAFCFB}
table.spec tbody td:first-child{color:var(--ink);font-weight:600;white-space:nowrap}

/* ---------- 要点行 ---------- */
.point{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-top:1px dashed var(--line);
}
.point:first-child{border-top:0}
.point .idx{
  flex:0 0 24px;height:24px;border-radius:999px;display:flex;align-items:center;justify-content:center;
  background:var(--soft-teal);color:var(--teal-900);font-size:12.5px;font-weight:700;
}
.point .idx.orange{background:rgba(240,135,31,.14);color:#B85F09}

/* ---------- FAQ ---------- */
.faq{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;box-shadow:var(--sh-1);transition:background .2s ease,border-color .2s ease;
}
.faq + .faq{margin-top:14px}
.faq summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;min-height:44px;
}
.faq summary::-webkit-details-marker{display:none}
.faq summary::after{
  content:"+";font-size:22px;line-height:1;font-weight:400;color:var(--orange);
  transition:transform .2s ease;flex:0 0 auto;
}
.faq[open]{background:var(--soft-teal);border-left:3px solid var(--orange);box-shadow:0 10px 26px rgba(11,92,86,.10)}
.faq[open] summary::after{content:"−"}
.faq-body{padding:0 22px 20px;font-size:15px;line-height:1.9;color:var(--ink-2)}

/* ---------- CTA 条 ---------- */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  background-image:linear-gradient(135deg,#0B5C56 0%,#12857A 52%,#3FBFA8 100%);
  box-shadow:var(--sh-2);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-90px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,196,107,.32) 0%,rgba(255,196,107,0) 70%);
  pointer-events:none;
}

/* ---------- 页脚 ---------- */
.f-title{font-size:14px;font-weight:600;color:#fff;margin:0 0 14px}
.f-link{display:inline-block;padding:4px 0;font-size:13.5px;color:#B9C6C3;transition:color .2s ease}
.f-link:hover{color:var(--orange-200)}

/* roulang page: article */
:root{
    --cloud-deep:#0B5C56;
    --cloud-main:#12857A;
    --cloud-light:#3FBFA8;
    --cloud-soft:#E4F2EF;
    --dawn:#F0871F;
    --dawn-light:#FFC46B;
    --mist:#F4F7F6;
    --card:#FFFFFF;
    --line:#DDE5E3;
    --night:#0A1F1E;
    --ink-strong:#14201E;
    --ink-body:#4E5D5A;
    --ink-soft:#8A9895;
    --ok:#2E9E6B;
    --warn:#D9533F;
    --r-lg:24px;
    --r-md:16px;
    --r-sm:12px;
    --sh-1:0 12px 32px rgba(11,92,86,.08);
    --sh-2:0 20px 48px rgba(11,92,86,.16);
  }
  *{box-sizing:border-box;}
  html{scroll-behavior:smooth;}
  body{
    margin:0;
    background:var(--mist);
    color:var(--ink-body);
    font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.75;
    letter-spacing:0;
    -webkit-font-smoothing:antialiased;
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font:inherit;color:inherit;}
  h1,h2,h3,h4{margin:0;letter-spacing:0;line-height:1.25;}
  p{margin:0;}
  .wrap{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px;}
  @media (min-width:768px){.wrap{padding-left:28px;padding-right:28px;}}

  /* 品牌标识 */
  .logo-mark{
    display:inline-flex;align-items:center;justify-content:center;
    width:36px;height:36px;flex:0 0 auto;border-radius:11px;
    background:linear-gradient(135deg,#0B5C56 0%,#12857A 55%,#3FBFA8 100%);
    color:#fff;font-size:15px;font-weight:800;
    box-shadow:0 6px 16px rgba(11,92,86,.22);
  }

  /* 侧栏导航 */
  .side-link{
    position:relative;display:flex;align-items:center;gap:12px;
    min-height:46px;padding:0 14px;border-radius:12px;
    font-size:14.5px;font-weight:500;color:var(--ink-body);
    transition:background-color .2s ease,color .2s ease;
  }
  .side-link:hover{background:var(--cloud-soft);color:var(--cloud-deep);}
  .side-link.is-active{background:var(--cloud-soft);color:var(--cloud-deep);font-weight:600;}
  .side-link.is-active::before{
    content:"";position:absolute;left:-12px;top:50%;transform:translateY(-50%);
    width:3px;height:22px;border-radius:2px;background:var(--dawn);
  }
  .side-ico{display:inline-flex;flex:0 0 auto;color:currentColor;opacity:.9;}

  /* 移动抽屉 */
  .m-link{
    display:flex;align-items:center;min-height:48px;padding:0 14px;border-radius:12px;
    font-size:15px;font-weight:500;color:var(--ink-body);
    transition:background-color .2s ease,color .2s ease;
  }
  .m-link:hover{background:var(--cloud-soft);color:var(--cloud-deep);}
  .m-link.is-current{background:var(--cloud-soft);color:var(--cloud-deep);font-weight:600;}

  /* 按钮 */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    min-height:44px;padding:0 22px;border-radius:12px;border:1px solid transparent;
    font-size:15px;font-weight:600;cursor:pointer;
    transition:background-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  }
  .btn-primary{background:var(--cloud-main);color:#fff;box-shadow:0 8px 20px rgba(18,133,122,.24);}
  .btn-primary:hover{background:#17968A;transform:translateY(-1px);box-shadow:0 14px 30px rgba(18,133,122,.30);}
  .btn-primary:active{transform:translateY(0);box-shadow:0 6px 16px rgba(18,133,122,.24);}
  .btn-primary:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(63,191,168,.5);}
  .btn-outline{background:#fff;color:var(--cloud-deep);border-color:rgba(11,92,86,.28);}
  .btn-outline:hover{background:var(--cloud-soft);transform:translateY(-1px);box-shadow:var(--sh-1);}
  .btn-outline:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(63,191,168,.45);}
  .btn-ghost{background:transparent;color:var(--cloud-deep);}
  .btn-ghost:hover{background:var(--cloud-soft);}
  .btn-ghost:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(63,191,168,.45);}

  /* 徽章与标签 */
  .badge-soft{
    display:inline-flex;align-items:center;gap:7px;
    padding:4px 11px;border-radius:999px;background:var(--cloud-soft);
    color:var(--cloud-deep);font-size:12px;font-weight:600;line-height:1.6;
  }
  .badge-soft::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--dawn);flex:0 0 auto;}
  .badge-plain{
    display:inline-flex;align-items:center;padding:4px 11px;border-radius:999px;
    background:#F1F5F4;color:var(--ink-soft);font-size:12px;font-weight:600;
  }
  .tag{
    display:inline-flex;align-items:center;min-height:32px;padding:5px 14px;
    border-radius:999px;border:1px solid var(--line);background:#fff;
    font-size:13px;color:var(--ink-body);
    transition:border-color .2s ease,color .2s ease,background-color .2s ease;
  }
  .tag:hover{border-color:rgba(18,133,122,.45);color:var(--cloud-deep);background:var(--cloud-soft);}

  /* 卡片 */
  .card{
    display:block;background:var(--card);border:1px solid rgba(11,92,86,.10);
    border-radius:var(--r-md);box-shadow:var(--sh-1);overflow:hidden;
    transition:transform .25s ease,box-shadow .25s ease,border-color .25s ease;
  }
  .card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(18,133,122,.35);}
  .card-img{transition:transform .45s ease;}
  .card:hover .card-img{transform:scale(1.04);}
  .card-title{
    font-size:18px;font-weight:600;color:var(--ink-strong);line-height:1.45;
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .card-desc{
    margin-top:8px;font-size:14px;line-height:1.7;color:var(--ink-soft);
    display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
  }
  .sec-title{font-size:clamp(22px,2.4vw,28px);font-weight:700;color:var(--ink-strong);line-height:1.3;}
  .sec-sub{margin-top:10px;font-size:14.5px;line-height:1.8;color:var(--ink-soft);}

  /* 文章布局 */
  .art-layout{display:grid;gap:40px;}
  @media (min-width:1280px){
    .art-layout{grid-template-columns:minmax(0,1fr) 232px;gap:48px;}
  }

  /* 正文排版 */
  .art-body{max-width:820px;font-size:17px;line-height:1.9;color:#3F4D4A;}
  .art-body p{margin:0 0 20px;}
  .art-body h2{
    font-size:clamp(22px,2.2vw,28px);font-weight:700;color:var(--ink-strong);
    line-height:1.4;margin:48px 0 18px;padding-left:14px;border-left:4px solid var(--dawn);
  }
  .art-body h3{font-size:19px;font-weight:600;color:var(--ink-strong);line-height:1.5;margin:32px 0 14px;}
  .art-body h4{font-size:17px;font-weight:600;color:var(--ink-strong);margin:24px 0 12px;}
  .art-body ul,.art-body ol{margin:0 0 20px;padding-left:22px;}
  .art-body ul{list-style:none;padding-left:8px;}
  .art-body ul li{position:relative;padding-left:20px;margin-bottom:10px;}
  .art-body ul li::before{
    content:"";position:absolute;left:0;top:.78em;width:7px;height:7px;
    border-radius:50%;background:var(--cloud-main);
  }
  .art-body ol li{margin-bottom:10px;padding-left:4px;}
  .art-body ol li::marker{color:var(--cloud-deep);font-weight:700;}
  .art-body blockquote{
    margin:26px 0;padding:18px 22px;background:var(--cloud-soft);
    border-left:4px solid var(--dawn);border-radius:0 12px 12px 0;color:var(--cloud-deep);
  }
  .art-body blockquote p:last-child{margin-bottom:0;}
  .art-body img{border-radius:16px;margin:26px auto;box-shadow:var(--sh-1);}
  .art-body a{color:var(--cloud-deep);border-bottom:1px solid rgba(18,133,122,.45);}
  .art-body a:hover{color:var(--dawn);border-bottom-color:rgba(240,135,31,.6);}
  .art-body strong{color:var(--ink-strong);font-weight:700;}
  .art-body hr{border:none;border-top:1px solid var(--line);margin:40px 0;}
  .art-body figure{margin:26px 0;}
  .art-body figcaption{text-align:center;font-size:13px;color:var(--ink-soft);margin-top:10px;}
  .art-body .table-scroll{overflow-x:auto;margin:26px 0;border:1px solid var(--line);border-radius:var(--r-sm);}
  .art-body table{width:100%;border-collapse:collapse;font-size:15px;min-width:480px;}
  .art-body th,.art-body td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--line);}
  .art-body th{background:#EFF5F4;color:var(--ink-strong);font-weight:600;white-space:nowrap;}
  .art-body tbody tr:nth-child(even){background:#FAFCFB;}
  .art-body tbody tr:last-child td{border-bottom:none;}

  /* 目录 */
  .toc{
    position:sticky;top:24px;background:#fff;border:1px solid var(--line);
    border-radius:var(--r-md);padding:18px;box-shadow:var(--sh-1);
  }
  .toc-title{font-size:14px;font-weight:600;color:var(--ink-strong);margin:0 0 10px;}
  .toc a{
    display:block;padding:8px 10px;border-radius:10px;font-size:13.5px;
    color:var(--ink-body);border-left:3px solid transparent;
    transition:background-color .2s ease,color .2s ease,border-color .2s ease;
  }
  .toc a:hover{background:var(--cloud-soft);color:var(--cloud-deep);}
  .toc a.is-current{color:var(--dawn);border-left-color:var(--dawn);background:#FFF5EA;font-weight:600;}

  /* FAQ */
  .faq-item{border:1px solid var(--line);border-radius:var(--r-md);background:#fff;overflow:hidden;transition:border-color .2s ease,background-color .2s ease;}
  .faq-item + .faq-item{margin-top:12px;}
  .faq-item.is-open{border-color:rgba(18,133,122,.35);background:#FBFDFC;}
  .faq-q{
    width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
    min-height:56px;padding:16px 20px;background:transparent;border:none;text-align:left;
    font-size:16px;font-weight:600;color:var(--ink-strong);cursor:pointer;line-height:1.6;
  }
  .faq-q:hover{color:var(--cloud-deep);}
  .faq-q:focus-visible{outline:none;box-shadow:inset 0 0 0 3px rgba(63,191,168,.5);}
  .faq-icon{position:relative;flex:0 0 auto;width:20px;height:20px;}
  .faq-icon::before,.faq-icon::after{
    content:"";position:absolute;left:50%;top:50%;background:var(--cloud-main);
    border-radius:2px;transform:translate(-50%,-50%);transition:transform .2s ease,opacity .2s ease;
  }
  .faq-icon::before{width:14px;height:2px;}
  .faq-icon::after{width:2px;height:14px;}
  .faq-item.is-open .faq-icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0;}
  .faq-item.is-open .faq-q{color:var(--cloud-deep);}
  .faq-a{padding:0 20px 20px;font-size:15px;line-height:1.9;color:var(--ink-body);border-left:3px solid var(--dawn);margin-left:20px;padding-left:16px;}

  /* CTA 条 */
  .cta-band{
    position:relative;overflow:hidden;border-radius:var(--r-lg);
    background:linear-gradient(135deg,#0B5C56 0%,#12857A 55%,#3FBFA8 100%);
    box-shadow:0 20px 48px rgba(11,92,86,.22);
  }
  .cta-band::after{
    content:"";position:absolute;right:-60px;bottom:-90px;width:260px;height:260px;border-radius:50%;
    background:radial-gradient(circle,rgba(240,135,31,.35) 0%,rgba(240,135,31,0) 70%);
  }

  /* 页脚 */
  .f-title{font-size:14px;font-weight:600;color:#fff;margin:0 0 14px;}
  .f-link{display:inline-block;font-size:14px;line-height:1.9;color:#B9C6C3;transition:color .2s ease;}
  .f-link:hover{color:var(--dawn-light);}

  /* 数据徽章 */
  .stat-badge{
    display:inline-flex;align-items:center;gap:8px;padding:6px 13px;border-radius:999px;
    background:var(--cloud-soft);color:var(--cloud-deep);font-size:13px;font-weight:600;
    font-variant-numeric:tabular-nums;
  }
  .stat-badge::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--dawn);flex:0 0 auto;}

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

/* roulang page: category2 */
:root{
    --cloud-deep:#0B5C56;
    --cloud:#12857A;
    --cloud-light:#3FBFA8;
    --dawn:#F0871F;
    --dawn-light:#FFC46B;
    --mist:#F4F7F6;
    --card:#FFFFFF;
    --line:#DDE5E3;
    --night:#0A1F1E;
    --ink:#14201E;
    --body:#4E5D5A;
    --muted:#8A9895;
    --ok:#2E9E6B;
    --warn:#D9533F;
    --r-xl:24px;
    --r-md:16px;
    --r-sm:12px;
    --sh:0 12px 32px rgba(11,92,86,.08);
    --sh-hover:0 20px 48px rgba(11,92,86,.16);
    --grad:linear-gradient(135deg,#0B5C56 0%,#12857A 55%,#3FBFA8 100%);
    --font: "Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  }

  *,*::before,*::after{ box-sizing:border-box; }
  html{ -webkit-text-size-adjust:100%; scroll-behavior:smooth; }
  body{
    margin:0;
    font-family:var(--font);
    font-size:16px;
    line-height:1.75;
    color:var(--body);
    background:var(--mist);
    letter-spacing:0;
    -webkit-font-smoothing:antialiased;
  }
  h1,h2,h3,h4{ margin:0; color:var(--ink); line-height:1.25; letter-spacing:0; }
  p{ margin:0; }
  ul{ margin:0; padding:0; list-style:none; }
  a{ color:inherit; text-decoration:none; transition:color .2s ease, background-color .2s ease, border-color .2s ease, box-shadow .2s ease, transform .2s ease; }
  img{ display:block; max-width:100%; height:auto; }
  button{ font-family:inherit; }
  :focus-visible{ outline:3px solid rgba(63,191,168,.55); outline-offset:2px; border-radius:8px; }

  .wrap{ width:100%; max-width:1240px; margin:0 auto; padding:0 20px; }

  .logo-mark{
    width:42px;height:42px;border-radius:14px;
    background:var(--grad);
    color:#fff;font-size:17px;font-weight:800;
    display:inline-flex;align-items:center;justify-content:center;
    box-shadow:0 8px 18px rgba(11,92,86,.24);
    flex:0 0 auto;
  }

  /* ---------- 左侧竖向导航 ---------- */
  .sidenav{
    position:fixed; left:0; top:0; bottom:0; width:232px;
    background:#fff; border-right:1px solid var(--line);
    display:flex; flex-direction:column;
    padding:22px 14px 18px; z-index:40; overflow-y:auto;
  }
  .side-top{ display:flex; align-items:center; gap:11px; padding:0 6px 18px; border-bottom:1px solid var(--line); }
  .side-brand{ font-size:15px; font-weight:800; color:var(--ink); line-height:1.3; }
  .side-sub{ font-size:11px; color:var(--muted); margin-top:2px; letter-spacing:.02em; }
  .side-nav{ margin-top:18px; display:flex; flex-direction:column; gap:6px; }
  .side-cap{ font-size:11px; color:var(--muted); padding:0 12px 6px; letter-spacing:.06em; }
  .nav-item{
    display:flex; align-items:center; gap:12px;
    min-height:46px; padding:0 12px; border-radius:var(--r-sm);
    color:var(--body); font-size:15px; font-weight:500; position:relative;
  }
  .nav-item svg{ flex:0 0 auto; }
  .nav-item:hover{ background:#E4F2EF; color:var(--cloud-deep); }
  .nav-item.active{ background:#E4F2EF; color:var(--cloud-deep); font-weight:700; }
  .nav-item.active::before{
    content:""; position:absolute; left:0; top:9px; bottom:9px; width:3px;
    border-radius:99px; background:var(--dawn);
  }
  .side-foot{ margin-top:auto; padding-top:18px; border-top:1px solid var(--line); }
  .side-note{ font-size:12px; line-height:1.8; color:var(--muted); margin-top:10px; padding:0 4px; }
  .side-cta{
    display:flex; align-items:center; justify-content:center;
    min-height:44px; border-radius:var(--r-sm);
    background:var(--grad); color:#fff; font-size:14px; font-weight:600;
    box-shadow:0 10px 24px rgba(11,92,86,.22);
  }
  .side-cta:hover{ filter:brightness(1.06); transform:translateY(-1px); }
  .side-cta:active{ transform:translateY(0); }

  .content{ padding:24px 20px 0; }
  @media (max-width:1023px){
    .sidenav{ display:none; }
    .content{ margin-left:0; padding-top:88px; }
  }
  @media (min-width:1024px){
    .sidenav{ width:88px; padding:22px 10px 18px; align-items:center; }
    .side-top{ flex-direction:column; padding:0 0 16px; width:100%; align-items:center; }
    .side-brand, .side-sub, .side-cap{ display:none; }
    .side-nav{ width:100%; align-items:center; }
    .nav-item{ justify-content:center; padding:0; width:48px; }
    .nav-item .nav-label{ display:none; }
    .side-foot{ width:100%; }
    .side-cta{ width:48px; min-height:48px; font-size:0; }
    .side-cta span{ font-size:18px; }
    .side-note{ display:none; }
    .content{ margin-left:88px; padding-left:32px; padding-right:40px; }
  }
  @media (min-width:1280px){
    .sidenav{ width:232px; padding:22px 14px 18px; align-items:stretch; }
    .side-top{ flex-direction:row; padding:0 6px 18px; }
    .side-brand, .side-sub, .side-cap{ display:block; }
    .side-nav{ align-items:stretch; }
    .nav-item{ justify-content:flex-start; padding:0 12px; width:auto; }
    .nav-item .nav-label{ display:inline; }
    .side-cta{ width:auto; min-height:44px; font-size:14px; }
    .side-cta span{ font-size:14px; }
    .side-note{ display:block; }
    .content{ margin-left:232px; }
  }

  /* ---------- 移动抽屉 ---------- */
  .drawer{ position:fixed; inset:0; z-index:60; background:rgba(10,31,30,.55); }
  .drawer-panel{
    position:absolute; right:0; top:0; bottom:0; width:min(88vw,360px);
    background:rgba(255,255,255,.97);
    backdrop-filter:blur(12px); -webkit-backdrop-filter:blur(12px);
    padding:20px; display:flex; flex-direction:column; gap:6px;
    border-left:1px solid var(--line);
  }
  .drawer-panel .nav-item{ min-height:48px; }

  /* ---------- 通用组件 ---------- */
  .card{
    background:var(--card); border:1px solid rgba(11,92,86,.10);
    border-radius:var(--r-md); box-shadow:var(--sh);
    transition:transform .22s ease, box-shadow .22s ease, border-color .22s ease;
  }
  .card:hover{ transform:translateY(-4px); box-shadow:var(--sh-hover); border-color:rgba(11,92,86,.20); }
  .btn{
    display:inline-flex; align-items:center; justify-content:center; gap:8px;
    min-height:44px; padding:0 22px; border-radius:var(--r-sm);
    font-size:15px; font-weight:600; border:1px solid transparent; cursor:pointer;
  }
  .btn-primary{ background:var(--cloud); color:#fff; box-shadow:0 10px 24px rgba(18,133,122,.24); }
  .btn-primary:hover{ filter:brightness(1.06); transform:translateY(-1px); box-shadow:0 14px 30px rgba(18,133,122,.30); }
  .btn-primary:active{ transform:translateY(0); }
  .btn-outline{ background:#fff; color:var(--cloud-deep); border-color:rgba(11,92,86,.35); }
  .btn-outline:hover{ background:#E4F2EF; border-color:var(--cloud); }
  .btn-ghost{ background:transparent; color:var(--cloud-deep); }
  .btn-ghost:hover{ background:#E4F2EF; }
  .btn-light{ background:#fff; color:var(--cloud-deep); }
  .btn-light:hover{ transform:translateY(-1px); box-shadow:0 12px 26px rgba(0,0,0,.18); }
  .btn-outline-light{ background:transparent; color:#fff; border-color:rgba(255,255,255,.55); }
  .btn-outline-light:hover{ background:rgba(255,255,255,.14); }

  .badge{
    display:inline-flex; align-items:center; gap:8px;
    padding:5px 12px; border-radius:999px;
    background:#E4F2EF; color:var(--cloud-deep);
    font-size:12px; font-weight:600; font-variant-numeric:tabular-nums;
  }
  .badge::before{ content:""; width:6px; height:6px; border-radius:50%; background:var(--dawn); flex:0 0 auto; }
  .badge-plain::before{ display:none; }
  .badge-dark{ background:rgba(255,255,255,.16); color:#fff; }
  .badge-dark::before{ background:var(--dawn-light); }

  .sec-title{ font-size:clamp(24px,2.4vw,30px); font-weight:700; }
  .sec-desc{ font-size:15px; color:var(--body); line-height:1.9; margin-top:12px; max-width:760px; }
  .lead{ font-size:17px; line-height:1.9; color:var(--body); }

  .eyebrow{ font-size:13px; font-weight:700; color:var(--cloud); letter-spacing:.08em; }

  /* ---------- KV ---------- */
  .kv{
    position:relative; overflow:hidden; border-radius:var(--r-xl);
    height:320px; box-shadow:var(--sh-hover);
  }
  .kv img{ position:absolute; inset:0; width:100%; height:100%; object-fit:cover; }
  .kv-veil{
    position:absolute; inset:0;
    background:linear-gradient(135deg, rgba(11,92,86,.90) 0%, rgba(10,31,30,.76) 100%);
  }
  .kv-glow{
    position:absolute; right:-70px; bottom:-90px; width:320px; height:320px; border-radius:50%;
    background:radial-gradient(circle at center, rgba(240,135,31,.34) 0%, rgba(240,135,31,0) 70%);
  }
  .kv-body{ position:absolute; left:0; right:0; bottom:0; padding:28px; }
  @media (max-width:639px){
    .kv{ height:240px; border-radius:18px; }
    .kv-body{ padding:20px; }
  }

  /* ---------- 对照表 ---------- */
  .table-scroll{ overflow-x:auto; -webkit-overflow-scrolling:touch; border-radius:var(--r-md); border:1px solid rgba(11,92,86,.10); background:#fff; box-shadow:var(--sh); }
  table.cmp{ width:100%; min-width:760px; border-collapse:collapse; font-size:14px; }
  table.cmp caption{ caption-side:top; text-align:left; padding:16px 20px 0; font-size:13px; color:var(--muted); }
  table.cmp th, table.cmp td{ padding:14px 18px; text-align:left; border-bottom:1px solid var(--line); vertical-align:top; }
  table.cmp thead th{ background:#EAF4F2; color:var(--cloud-deep); font-size:13px; font-weight:700; white-space:nowrap; }
  table.cmp tbody tr:nth-child(even){ background:#F8FBFA; }
  table.cmp tbody tr:hover{ background:#E4F2EF; }
  table.cmp td:first-child{ font-weight:600; color:var(--ink); }
  table.cmp tbody tr:last-child td{ border-bottom:none; }

  /* ---------- 功能卡 ---------- */
  .fcard-media{ position:relative; aspect-ratio:16/9; overflow:hidden; border-radius:var(--r-md) var(--r-md) 0 0; }
  .fcard-media img{ width:100%; height:100%; object-fit:cover; transition:transform .35s ease; }
  .fcard:hover .fcard-media img{ transform:scale(1.04); }
  .fcard-media .badge{ position:absolute; top:12px; right:12px; background:rgba(255,255,255,.92); }
  .dot-list li{ position:relative; padding-left:18px; font-size:14px; line-height:1.8; color:var(--body); }
  .dot-list li::before{
    content:""; position:absolute; left:2px; top:10px;
    width:6px; height:6px; border-radius:50%; background:var(--cloud);
  }

  /* ---------- 准备清单 ---------- */
  .step-item{ display:flex; gap:16px; padding:20px; border-radius:var(--r-md); background:#fff; border:1px solid rgba(11,92,86,.10); box-shadow:var(--sh); }
  .num-badge{
    flex:0 0 auto; width:44px; height:44px; border-radius:50%;
    border:2px solid var(--dawn); color:var(--dawn);
    display:flex; align-items:center; justify-content:center;
    font-size:16px; font-weight:800; font-variant-numeric:tabular-nums;
    background:#FFF7EC;
  }

  /* ---------- FAQ ---------- */
  .faq-item{ background:#fff; border:1px solid rgba(11,92,86,.10); border-radius:var(--r-md); box-shadow:var(--sh); overflow:hidden; }
  .faq-item + .faq-item{ margin-top:14px; }
  .faq-q{
    width:100%; min-height:58px; display:flex; align-items:center; justify-content:space-between; gap:16px;
    padding:16px 22px; background:transparent; border:0; cursor:pointer;
    font-size:16px; font-weight:600; color:var(--ink); text-align:left;
  }
  .faq-q:hover{ color:var(--cloud-deep); }
  .faq-icon{
    flex:0 0 auto; width:28px; height:28px; border-radius:50%;
    background:#E4F2EF; color:var(--cloud-deep);
    display:flex; align-items:center; justify-content:center;
    font-size:18px; font-weight:700; line-height:1;
    transition:transform .2s ease, background-color .2s ease, color .2s ease;
  }
  .faq-icon::before{ content:"+"; }
  .faq-item.open .faq-icon{ background:var(--dawn); color:#fff; transform:rotate(180deg); }
  .faq-item.open .faq-icon::before{ content:"−"; }
  .faq-a{ max-height:0; overflow:hidden; transition:max-height .26s ease; }
  .faq-item.open .faq-a{ max-height:360px; }
  .faq-a-inner{ padding:0 22px 20px; font-size:15px; line-height:1.9; color:var(--body); }
  .faq-item.open{ background:#F2F9F7; border-color:rgba(11,92,86,.20); }
  .faq-item.open .faq-q{ box-shadow:inset 3px 0 0 var(--dawn); }

  /* ---------- CTA ---------- */
  .cta-band{
    position:relative; overflow:hidden; border-radius:var(--r-xl);
    background:var(--grad); color:#fff; padding:34px 32px;
    display:flex; align-items:center; justify-content:space-between; gap:26px;
    box-shadow:var(--sh-hover);
  }
  .cta-band::after{
    content:""; position:absolute; right:-60px; bottom:-80px; width:280px; height:280px; border-radius:50%;
    background:radial-gradient(circle at center, rgba(240,135,31,.32) 0%, rgba(240,135,31,0) 70%);
  }
  @media (max-width:767px){
    .cta-band{ flex-direction:column; align-items:stretch; padding:26px 22px; }
    .cta-band .btn{ width:100%; }
  }

  /* ---------- 面包屑 ---------- */
  .crumb{ display:flex; flex-wrap:wrap; align-items:center; gap:8px; font-size:13px; color:var(--muted); }
  .crumb a{ color:var(--cloud); }
  .crumb a:hover{ color:var(--dawn); }
  .crumb .sep{ color:#C3CFCC; }
  .crumb .current{ color:var(--muted); }

  /* ---------- 页脚 ---------- */
  .f-title{ color:#fff; font-size:14px; font-weight:600; margin-bottom:14px; }
  .f-link{ color:#B9C6C3; font-size:13px; line-height:2.1; display:inline-block; }
  .f-link:hover{ color:var(--dawn-light); }

  .divider{ height:1px; background:var(--line); border:0; margin:0; }

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

/* roulang page: category3 */
:root{
  --c-deep:#0B5C56;
  --c-main:#12857A;
  --c-light:#3FBFA8;
  --c-mist:#E4F2EF;
  --c-dawn:#F0871F;
  --c-dawn-soft:#FFC46B;
  --bg-paper:#F4F7F6;
  --card:#FFFFFF;
  --line:#DDE5E3;
  --night:#0A1F1E;
  --ink:#14201E;
  --body:#4E5D5A;
  --mute:#8A9895;
  --ok:#2E9E6B;
  --warn:#D9533F;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --sh1:0 12px 32px rgba(11,92,86,.08);
  --sh2:0 20px 48px rgba(11,92,86,.16);
  --line-soft:rgba(11,92,86,.10);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-paper);
  color:var(--body);
  font-family:"Noto Sans SC","PingFang SC","HarmonyOS Sans","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.75;
  letter-spacing:0;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--ink);line-height:1.25;font-weight:700;letter-spacing:0}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:3px solid rgba(63,191,168,.5);outline-offset:2px;border-radius:8px}
h1{font-size:clamp(32px,4vw,44px);font-weight:800}
h2{font-size:clamp(24px,2.6vw,30px)}
h3{font-size:clamp(18px,1.5vw,20px);font-weight:600}
.num{font-variant-numeric:tabular-nums}

.wrap{width:100%;max-width:1240px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.wrap{padding-left:32px;padding-right:32px}}
@media (min-width:1280px){.wrap{padding-right:40px}}

/* ============ 左侧竖向导航 ============ */
.side{
  position:fixed;top:0;left:0;bottom:0;width:232px;
  background:#fff;border-right:1px solid var(--line);
  display:none;flex-direction:column;z-index:40;
}
.side-top{padding:22px 20px;border-bottom:1px solid var(--line)}
.side-nav{flex:1;overflow-y:auto;padding:16px 12px;display:flex;flex-direction:column;gap:6px}
.side-foot{padding:16px 16px 22px;border-top:1px solid var(--line)}
.logo-mark{
  width:36px;height:36px;flex:0 0 36px;border-radius:12px;
  background:linear-gradient(135deg,#0B5C56 0%,#12857A 55%,#3FBFA8 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:16px;letter-spacing:0;
}
.nav-item{
  display:flex;align-items:center;gap:12px;min-height:44px;
  padding:10px 14px;border-radius:12px;
  font-size:14.5px;font-weight:500;color:var(--body);
  border-left:3px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.nav-item svg{flex:0 0 20px}
.nav-item:hover{background:var(--c-mist);color:var(--c-deep)}
.nav-item.active{background:var(--c-mist);color:var(--c-deep);border-left-color:var(--c-dawn);font-weight:600}
.side-note{margin-top:14px;font-size:13px;line-height:1.9;color:var(--mute)}

.shell{padding-top:64px}
@media (min-width:1024px){
  .side{display:flex}
  .shell{padding-top:0;padding-left:232px}
}
@media (min-width:1024px) and (max-width:1279px){
  .side{width:88px}
  .shell{padding-left:88px}
  .side-brand-text,.side-label,.side-note,.side-cta{display:none}
  .side-top{padding:22px 0;display:flex;justify-content:center}
  .side-nav{padding:16px 10px}
  .nav-item{justify-content:center;padding:10px 0;border-left:0;border-radius:14px}
  .nav-item.active{box-shadow:inset 3px 0 0 var(--c-dawn)}
  .side-foot{display:none}
}

/* ============ 移动抽屉 ============ */
.drawer{position:fixed;inset:0;z-index:60;background:rgba(10,31,30,.55);display:none}
.drawer.open{display:block;animation:fadeIn .18s ease}
@keyframes fadeIn{from{opacity:0}to{opacity:1}}
.drawer-panel{
  position:absolute;top:0;right:0;height:100%;width:min(86vw,360px);
  padding:20px;display:flex;flex-direction:column;gap:6px;overflow-y:auto;
  background:rgba(244,247,246,.96);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:-20px 0 48px rgba(11,92,86,.16);
}
.drawer-head{display:flex;justify-content:space-between;align-items:center;margin-bottom:14px}
.drawer-close{
  width:44px;height:44px;border-radius:12px;border:1px solid var(--line);
  background:#fff;color:var(--c-deep);display:flex;align-items:center;justify-content:center;
}
.drawer-close:hover{background:var(--c-mist)}

/* ============ 面包屑 ============ */
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--mute);flex-wrap:wrap}
.crumbs a{color:var(--c-main)}
.crumbs a:hover{color:var(--c-deep);text-decoration:underline}
.crumbs .cur{color:var(--mute)}

/* ============ 板块 ============ */
.section{padding-top:44px;padding-bottom:44px}
@media (min-width:768px){.section{padding-top:72px;padding-bottom:72px}}
.section-label{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;
  background:var(--c-mist);color:var(--c-deep);
  font-size:13px;font-weight:600;
}
.section-label::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--c-dawn)}

/* ============ 按钮 ============ */
.btn-primary,.btn-outline,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--c-deep);color:#fff;box-shadow:0 10px 24px rgba(11,92,86,.20)}
.btn-primary:hover{background:#0d6a63;transform:translateY(-1px);box-shadow:0 14px 30px rgba(11,92,86,.26)}
.btn-primary:active{transform:translateY(0);box-shadow:0 8px 18px rgba(11,92,86,.20)}
.btn-outline{background:#fff;color:var(--c-deep);border:1px solid rgba(11,92,86,.35)}
.btn-outline:hover{background:var(--c-mist);border-color:var(--c-main)}
.btn-ghost{background:transparent;color:var(--c-deep);padding-left:14px;padding-right:14px}
.btn-ghost:hover{background:var(--c-mist)}
.btn-on-dark{background:#fff;color:var(--c-deep);box-shadow:0 10px 24px rgba(10,31,30,.24)}
.btn-on-dark:hover{background:#F4F7F6;transform:translateY(-1px)}
.btn-line-dark{background:transparent;color:#fff;border:1px solid rgba(255,255,255,.5)}
.btn-line-dark:hover{background:rgba(255,255,255,.14)}

/* ============ Hero / KV ============ */
.kv{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  min-height:240px;display:flex;align-items:flex-end;
  background-image:linear-gradient(120deg,rgba(11,92,86,.90) 0%,rgba(18,133,122,.80) 48%,rgba(10,31,30,.78) 100%),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  box-shadow:var(--sh1);
}
@media (min-width:768px){.kv{min-height:320px}}
.kv::after{
  content:'';position:absolute;right:-90px;bottom:-120px;width:340px;height:340px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,135,31,.35) 0%,rgba(240,135,31,0) 70%);
  pointer-events:none;
}
.kv-inner{position:relative;z-index:2;padding:28px 24px;width:100%}
@media (min-width:768px){.kv-inner{padding:40px 44px}}
.kv p.lead{color:rgba(255,255,255,.86)}
.g-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  background:rgba(255,255,255,.16);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:13px;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.g-badge::before{content:'';width:6px;height:6px;border-radius:50%;background:var(--c-dawn-soft)}

/* ============ 卡片 ============ */
.card{
  background:var(--card);border:1px solid var(--line-soft);border-radius:var(--r-md);
  padding:24px;box-shadow:var(--sh1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-4px);box-shadow:var(--sh2);border-color:rgba(18,133,122,.22)}
.card h3{font-size:18px}
.card p{font-size:14px;line-height:1.7;color:var(--mute)}
.num-badge{
  width:44px;height:44px;border-radius:999px;display:flex;align-items:center;justify-content:center;
  border:2px solid var(--c-dawn);color:var(--c-dawn);background:#fff;
  font-weight:700;font-size:15px;font-variant-numeric:tabular-nums;
}
.dot-list li{position:relative;padding-left:16px;font-size:14px;line-height:1.7;color:var(--body)}
.dot-list li::before{content:'';position:absolute;left:0;top:9px;width:6px;height:6px;border-radius:50%;background:var(--c-main)}
.pic{border-radius:var(--r-md);overflow:hidden;border:1px solid var(--line-soft);box-shadow:var(--sh1)}
.pic img{width:100%;height:100%;object-fit:cover}
.stat-card{background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-md);padding:18px 20px;box-shadow:var(--sh1)}
.stat-num{display:block;font-size:30px;font-weight:800;color:var(--c-deep);line-height:1.1;font-variant-numeric:tabular-nums}
.stat-label{display:block;margin-top:6px;font-size:14px;font-weight:600;color:var(--ink)}
.stat-desc{display:block;margin-top:4px;font-size:13px;color:var(--mute);line-height:1.7}

/* ============ 时间轴 ============ */
.tl{position:relative}
.tl-item{position:relative;padding-left:68px;padding-bottom:26px}
.tl-item:last-child{padding-bottom:0}
.tl-item::before{
  content:'';position:absolute;left:21px;top:52px;bottom:0;width:2px;
  background:linear-gradient(180deg,var(--c-light),var(--line));
}
.tl-item:last-child::before{display:none}
.tl-badge{
  position:absolute;left:0;top:0;width:44px;height:44px;border-radius:999px;
  border:2px solid var(--c-dawn);background:#fff;color:var(--c-dawn);
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:15px;font-variant-numeric:tabular-nums;
  box-shadow:0 8px 20px rgba(240,135,31,.16);
}
.tl-card{background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-md);padding:22px;box-shadow:var(--sh1);transition:transform .2s ease,box-shadow .2s ease}
.tl-card:hover{transform:translateY(-3px);box-shadow:var(--sh2)}

/* ============ FAQ ============ */
.faq{max-width:820px}
.faq-item{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh1);
}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  text-align:left;min-height:44px;padding:18px 20px;
  font-size:16px;font-weight:600;color:var(--ink);
  border-left:3px solid transparent;transition:background .2s ease,border-color .2s ease;
}
.faq-q:hover{background:#F7FBFA}
.faq-ic{
  flex:0 0 24px;width:24px;height:24px;border-radius:50%;
  background:var(--c-mist);color:var(--c-deep);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;line-height:1;
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-ic::before{content:'+'}
.faq-item.open .faq-q{background:var(--c-mist);border-left-color:var(--c-dawn)}
.faq-item.open .faq-ic{background:var(--c-deep);color:#fff;transform:rotate(180deg)}
.faq-item.open .faq-ic::before{content:'−'}
.faq-a{max-height:0;overflow:hidden;transition:max-height .25s ease}
.faq-item.open .faq-a{max-height:460px}
.faq-a p{padding:0 20px 20px 20px;font-size:14.5px;line-height:1.9;color:var(--body)}

/* ============ CTA 条 ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:var(--r-lg);
  padding:32px 24px;color:#fff;
  background:linear-gradient(135deg,#0B5C56 0%,#12857A 55%,#3FBFA8 100%);
  display:flex;flex-direction:column;gap:22px;
}
@media (min-width:768px){.cta-band{padding:40px 44px;flex-direction:row;align-items:center;justify-content:space-between;gap:32px}}
.cta-band::after{
  content:'';position:absolute;right:-80px;bottom:-110px;width:300px;height:300px;border-radius:50%;
  background:radial-gradient(circle,rgba(240,135,31,.34) 0%,rgba(240,135,31,0) 70%);
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{color:#fff}
.cta-band p{color:rgba(255,255,255,.86);font-size:15px;line-height:1.8;margin-top:8px}

/* ============ 返回条 ============ */
.back-bar{
  background:#fff;border:1px solid var(--line-soft);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--sh1);
  display:flex;flex-direction:column;gap:18px;
}
@media (min-width:768px){.back-bar{flex-direction:row;align-items:center;justify-content:space-between;padding:28px 32px}}

/* ============ 页脚 ============ */
.f-title{font-size:14px;font-weight:600;color:#fff;margin-bottom:14px}
.f-link{display:inline-block;font-size:13px;line-height:1.9;color:#B9C6C3;transition:color .18s ease}
.f-link:hover{color:var(--c-dawn-soft)}

/* 正文阅读排版（备用） */
.prose p{font-size:17px;line-height:1.9;color:var(--body);margin-bottom:20px}