/* roulang page: index */
:root{
  --primary:#1E6E5F;
  --primary-dark:#175A4E;
  --primary-soft:#E7F0ED;
  --amber:#C98A3C;
  --ink:#14181A;
  --muted:#5A6266;
  --line:#E3E0D8;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --dark:#10211D;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow-1:0 2px 8px rgba(20,24,26,.06);
  --shadow-2:0 10px 26px rgba(20,24,26,.10);
  --shadow-3:0 18px 40px rgba(20,24,26,.14);
  --nav-w:248px;
  --container:1200px;
  --section-y:88px;
}
*,*::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","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;letter-spacing:-0.01em;line-height:1.35;color:var(--ink);}
h1{font-size:clamp(28px,4vw,44px);}
h2{font-size:clamp(22px,2.6vw,32px);}
h3{font-size:clamp(18px,1.8vw,22px);font-weight:600;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
a:focus-visible,button:focus-visible,input:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}

/* ============ 布局骨架 ============ */
.page-shell{display:flex;min-height:100vh;}
.main-area{
  margin-left:var(--nav-w);
  width:calc(100% - var(--nav-w));
  min-width:0;
  overflow:hidden;
}
.container{max-width:var(--container);margin:0 auto;padding:0 32px;}
.section{padding:var(--section-y) 0;}
.section--tight{padding:64px 0;}
.section--soft{background:var(--primary-soft);}
.section-head{max-width:720px;margin-bottom:44px;}
.eyebrow{
  display:inline-block;
  font-size:13px;
  letter-spacing:.08em;
  color:var(--primary);
  background:var(--primary-soft);
  border-radius:999px;
  padding:5px 14px;
  margin-bottom:16px;
  font-weight:600;
}
.section-head p{color:var(--muted);font-size:15px;margin:12px 0 0;}

/* ============ 左侧导航 ============ */
.side-nav{
  position:fixed;
  top:0;left:0;
  width:var(--nav-w);
  height:100vh;
  background:var(--card);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:28px 20px 24px;
  z-index:70;
}
.nav-brand{display:flex;align-items:center;gap:12px;margin-bottom:36px;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  border-radius:12px;
  background:linear-gradient(140deg,var(--primary),var(--primary-dark));
  color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-size:19px;font-weight:700;
  box-shadow:var(--shadow-1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:16px;font-weight:700;color:var(--ink);}
.brand-text em{font-style:normal;font-size:12px;color:var(--muted);letter-spacing:.04em;}
.nav-menu{display:flex;flex-direction:column;gap:4px;flex:1 1 auto;}
.nav-item{
  position:relative;
  display:block;
  padding:11px 14px 11px 18px;
  border-radius:10px;
  color:var(--muted);
  font-size:15px;
  font-weight:500;
  transition:background .2s ease,color .2s ease;
}
.nav-item::before{
  content:"";
  position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:3px;height:0;border-radius:3px;background:var(--primary);
  transition:height .22s ease;
}
.nav-item:hover{background:var(--primary-soft);color:var(--primary);}
.nav-item.is-active{color:var(--primary);background:var(--primary-soft);font-weight:600;}
.nav-item.is-active::before{height:22px;}
.nav-foot{border-top:1px solid var(--line);padding-top:20px;display:flex;flex-direction:column;gap:10px;}
.nav-cta{width:100%;justify-content:center;}
.nav-meta{font-size:12px;color:var(--muted);line-height:1.7;}
.nav-meta a{font-size:12px;}

/* ============ 按钮 / 徽章 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:46px;padding:0 22px;
  border:1px solid transparent;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;
  transition:transform .18s ease,background .18s ease,color .18s ease,box-shadow .18s ease,border-color .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:rgba(30,110,95,.06);color:var(--primary-dark);border-color:var(--primary-dark);}
.btn-light{background:#fff;color:var(--primary);}
.btn-light:hover{background:var(--primary-soft);color:var(--primary-dark);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;border-color:#fff;}
.badge{
  display:inline-flex;align-items:center;
  font-size:12px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);
}
.badge-amber{background:rgba(201,138,60,.14);color:#9A6524;}

/* ============ 移动顶栏 / 抽屉 ============ */
.mobile-bar{display:none;}
.nav-drawer{display:none;}

/* ============ Hero ============ */
.hero{
  position:relative;
  min-height:66vh;
  display:flex;align-items:center;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  border-radius:0 0 20px 20px;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(96deg,rgba(16,33,29,.90) 0%,rgba(16,33,29,.68) 52%,rgba(16,33,29,.38) 100%);
}
.hero-inner{position:relative;z-index:2;padding:104px 0;max-width:760px;color:#fff;}
.hero-tag{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.14);color:#EAF3F0;margin-bottom:20px;
  border:1px solid rgba(255,255,255,.22);
}
.hero h1{color:#fff;margin-bottom:18px;}
.hero-sub{font-size:17px;color:#D8E4E0;max-width:600px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:34px;}
.hero-points{display:flex;flex-wrap:wrap;gap:12px 28px;font-size:14px;color:#C6D6D1;}
.hero-points li{display:flex;align-items:center;gap:8px;}
.hero-points li::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber);flex:0 0 6px;}

/* ============ 主张条 / 数据 ============ */
.stats-bar{background:var(--card);border-bottom:1px solid var(--line);}
.stats-inner{padding:44px 32px;}
.stats-claim{font-size:17px;font-weight:600;color:var(--ink);margin-bottom:26px;}
.stats-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:0;border-top:1px solid var(--line);}
.stat{padding:24px 26px 6px 0;border-right:1px solid var(--line);}
.stat:last-child{border-right:none;}
.stat strong{display:block;font-size:34px;line-height:1.1;color:var(--primary);font-weight:700;}
.stat span{display:block;margin-top:8px;font-size:13px;color:var(--muted);}

/* ============ 精选内容错落卡 ============ */
.feature-grid{display:grid;grid-template-columns:1.45fr 1fr;gap:24px;align-items:stretch;}
.feature-main,.feature-small{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease;
  display:flex;flex-direction:column;
}
.feature-main:hover,.feature-small:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.feature-media{position:relative;overflow:hidden;}
.feature-media img{width:100%;aspect-ratio:21/9;object-fit:cover;transition:transform .5s ease;}
.feature-small .feature-media img{aspect-ratio:16/10;}
.feature-main:hover .feature-media img,.feature-small:hover .feature-media img{transform:scale(1.04);}
.feature-body{padding:26px 28px 28px;}
.feature-body h3{margin:14px 0 10px;}
.feature-body h3 a{color:var(--ink);}
.feature-body h3 a:hover{color:var(--primary);}
.feature-body p{color:var(--muted);font-size:15px;}
.feature-side{display:flex;flex-direction:column;gap:24px;}
.feature-side .feature-small{flex:1 1 auto;}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;margin-top:6px;}
.arrow-link span{transition:transform .2s ease;}
.arrow-link:hover span{transform:translateX(4px);}

/* ============ 步骤条 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step;}
.step{
  position:relative;padding:28px 24px 26px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
}
.step-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:50%;
  background:var(--primary-soft);color:var(--amber);
  font-weight:700;font-size:16px;margin-bottom:16px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--muted);line-height:1.8;}

/* ============ 分类入口卡 ============ */
.cat-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.cat-card{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.cat-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:#CFE0DA;}
.cat-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.cat-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1 1 auto;}
.cat-body h3{margin:14px 0 10px;font-size:19px;}
.cat-card:hover .cat-body h3{color:var(--primary);}
.cat-body p{font-size:14px;color:var(--muted);flex:1 1 auto;}
.cat-body .arrow-link{margin-top:16px;}

/* ============ 最新信息列表 ============ */
.news-list{display:flex;flex-direction:column;gap:20px;}
.news-card{
  display:flex;align-items:stretch;gap:26px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px 26px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease;
}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.news-body{flex:1 1 auto;min-width:0;display:flex;flex-direction:column;}
.news-meta{display:flex;align-items:center;gap:14px;margin-bottom:12px;font-size:13px;color:var(--muted);}
.news-card h3{font-size:19px;margin:0 0 10px;}
.news-card h3 a{color:var(--ink);}
.news-card h3 a:hover{color:var(--primary);}
.news-card p{font-size:14px;color:var(--muted);margin-bottom:14px;}
.news-thumb{flex:0 0 210px;border-radius:var(--radius-img);overflow:hidden;}
.news-thumb img{width:100%;height:100%;min-height:132px;object-fit:cover;}
.news-more{font-size:14px;font-weight:600;margin-top:auto;}
.news-empty{
  background:var(--card);border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:44px 28px;text-align:center;color:var(--muted);
}
.news-empty p{margin-bottom:16px;}

/* ============ 信任背书 ============ */
.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0;}
.trust-item{padding:34px 26px;border-right:1px solid var(--line);}
.trust-item:last-child{border-right:none;}
.trust-item strong{display:block;font-size:15px;color:var(--ink);margin-bottom:8px;font-weight:600;}
.trust-item p{font-size:13px;color:var(--muted);margin:0;line-height:1.8;}

/* ============ FAQ ============ */
.faq-wrap{max-width:860px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:56px;padding:14px 4px;
  font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex:0 0 auto;font-size:20px;font-weight:400;color:var(--primary);
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"–";}
.faq-item[open] summary{color:var(--primary);}
.faq-answer{
  padding:4px 18px 22px 16px;
  border-left:3px solid var(--primary);
  margin-left:2px;
  color:var(--muted);font-size:15px;
}

/* ============ CTA 通栏 ============ */
.cta-band{padding:0 0 var(--section-y);}
.cta-inner{
  background:var(--dark);
  border-radius:18px;
  padding:64px 40px;
  text-align:center;
  color:#fff;
  box-shadow:var(--shadow-3);
}
.cta-inner h2{color:#fff;margin-bottom:14px;}
.cta-inner p{color:#B9C9C4;max-width:620px;margin:0 auto 30px;font-size:15px;}
.subscribe-form{
  display:flex;gap:12px;justify-content:center;
  max-width:720px;margin:0 auto;flex-wrap:nowrap;
}
.subscribe-form input{
  flex:1 1 auto;min-width:0;height:46px;
  padding:0 16px;border-radius:var(--radius-input);
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.08);
  color:#fff;
}
.subscribe-form input::placeholder{color:#93A6A0;}
.subscribe-form input:focus{outline:none;border-color:var(--primary);background:rgba(255,255,255,.14);box-shadow:0 0 0 3px rgba(30,110,95,.35);}
.cta-note{margin-top:18px;font-size:13px;color:#8FA29C;}

/* ============ 页脚 ============ */
.site-footer{background:var(--dark);color:#C7D3CF;padding:72px 0 28px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand strong{display:block;color:#fff;font-size:17px;margin-bottom:14px;}
.footer-brand p{font-size:13px;line-height:1.9;color:#9FB0AB;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:18px;}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{color:#CBD5D1;font-size:14px;}
.footer-col a:hover{color:#fff;}
.footer-col p{font-size:13px;color:#9FB0AB;line-height:1.9;}
.footer-bottom{
  margin-top:52px;padding-top:22px;border-top:1px solid rgba(255,255,255,.10);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8B9C97;
}

/* ============ 响应式 ============ */
@media screen and (max-width:1279px){
  .container{padding:0 28px;}
}
@media screen and (max-width:1023px){
  .side-nav{display:none;}
  .main-area{margin-left:0;width:100%;}
  .mobile-bar{
    display:flex;align-items:center;justify-content:space-between;
    position:sticky;top:0;z-index:80;
    height:64px;padding:0 20px;
    background:rgba(255,255,255,.96);
    backdrop-filter:blur(8px);
    border-bottom:1px solid var(--line);
  }
  .mobile-brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);font-size:16px;}
  .mobile-brand .brand-mark{width:34px;height:34px;flex:0 0 34px;font-size:16px;border-radius:10px;}
  .burger{
    width:44px;height:44px;border:1px solid var(--line);border-radius:10px;background:#fff;
    display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  }
  .burger span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .2s ease,opacity .2s ease;}
  .burger.is-open span:nth-child(1){transform:translateY(7px) rotate(45deg);}
  .burger.is-open span:nth-child(2){opacity:0;}
  .burger.is-open span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
  .nav-drawer{
    display:block;position:fixed;inset:64px 0 0 0;z-index:75;
    background:var(--card);
    transform:translateY(-12px);opacity:0;pointer-events:none;
    transition:opacity .22s ease,transform .22s ease;
    padding:26px 22px 36px;overflow-y:auto;
  }
  .nav-drawer.is-open{transform:translateY(0);opacity:1;pointer-events:auto;}
  .drawer-menu{display:flex;flex-direction:column;gap:6px;margin-bottom:24px;}
  .drawer-menu a{
    font-size:19px;font-weight:600;color:var(--ink);
    padding:14px 12px;border-radius:12px;
  }
  .drawer-menu a.is-active{color:var(--primary);background:var(--primary-soft);}
  .hero{border-radius:0 0 16px 16px;}
  .hero-inner{padding:76px 0;}
  .stats-grid{grid-template-columns:1fr;border-top:none;}
  .stat{border-right:none;border-bottom:1px solid var(--line);padding:20px 0;}
  .stat:last-child{border-bottom:none;}
  .feature-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:repeat(2,1fr);}
  .cat-grid{grid-template-columns:repeat(2,1fr);}
  .trust-grid{grid-template-columns:repeat(2,1fr);}
  .trust-item{border-bottom:1px solid var(--line);}
  .trust-item:nth-child(2n){border-right:none;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:639px){
  :root{--section-y:52px;}
  .container{padding:0 18px;}
  .section--tight{padding:44px 0;}
  .hero-inner{padding:56px 0;}
  .hero-sub{font-size:16px;}
  .hero-actions{gap:12px;}
  .hero-actions .btn{flex:1 1 100%;}
  .stats-inner{padding:34px 18px;}
  .steps{grid-template-columns:1fr;}
  .cat-grid{grid-template-columns:1fr;}
  .trust-grid{grid-template-columns:1fr;}
  .trust-item{border-right:none;}
  .news-card{flex-direction:column-reverse;padding:18px;gap:16px;}
  .news-thumb{flex:0 0 auto;}
  .news-thumb img{min-height:auto;aspect-ratio:16/9;}
  .cta-inner{padding:44px 20px;border-radius:14px;}
  .subscribe-form{flex-wrap:wrap;}
  .subscribe-form input{flex:1 1 100%;}
  .subscribe-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
}

/* roulang page: article */
:root{
  --brand:#1E6E5F;
  --brand-dark:#175A4E;
  --brand-soft:#E7F0ED;
  --amber:#C98A3C;
  --ink:#14181A;
  --muted:#5A6266;
  --line:#E3E0D8;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --dark:#10211D;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-sm:0 2px 8px rgba(20,24,26,.06);
  --shadow-md:0 10px 26px rgba(20,24,26,.10);
  --shadow-lg:0 18px 40px rgba(20,24,26,.14);
  --nav-w:248px;
  --gap:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,background-color .2s ease;}
a:hover{color:var(--brand-dark);}
button,input{font-family:inherit;font-size:inherit;}
h1,h2,h3,h4{font-weight:700;letter-spacing:-0.01em;line-height:1.35;margin:0;color:var(--ink);}
p{margin:0 0 1em;}
ul,ol{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ---------- 侧边导航 ---------- */
.side-nav{
  position:fixed;top:0;left:0;z-index:80;
  width:var(--nav-w);height:100vh;
  display:flex;flex-direction:column;
  padding:26px 20px 22px;
  background:var(--card);
  border-right:1px solid var(--line);
  overflow-y:auto;
}
.side-nav__head{padding-bottom:22px;border-bottom:1px solid var(--line);}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;color:var(--ink);}
.brand__mark{
  flex:0 0 auto;width:38px;height:38px;border-radius:11px;
  background:linear-gradient(150deg,var(--brand) 0%,var(--brand-dark) 100%);
  color:#fff;display:flex;align-items:center;justify-content:center;font-size:16px;
  box-shadow:var(--shadow-sm);
}
.brand__text{font-size:16px;font-weight:700;letter-spacing:-0.02em;line-height:1.25;}
.brand__sub{display:block;font-size:11px;font-weight:400;color:var(--muted);letter-spacing:.06em;}
.nav-menu{display:flex;flex-direction:column;gap:4px;padding:22px 0;margin:0;flex:1 1 auto;}
.nav-item{
  position:relative;display:block;padding:11px 14px;border-radius:10px;
  color:var(--muted);font-size:15px;font-weight:500;text-decoration:none;
  transition:background-color .2s ease,color .2s ease,padding-left .2s ease;
}
.nav-item:hover{background:var(--brand-soft);color:var(--brand-dark);}
.nav-item.is-active{background:var(--brand-soft);color:var(--brand-dark);font-weight:600;padding-left:18px;}
.nav-item.is-active::before{
  content:"";position:absolute;left:8px;top:12px;bottom:12px;width:3px;
  background:var(--brand);border-radius:2px;
}
.side-nav__foot{padding-top:20px;border-top:1px solid var(--line);}
.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;line-height:1.2;cursor:pointer;
  border:1px solid transparent;text-decoration:none;
  transition:transform .18s ease,background-color .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.btn-primary{background:var(--brand);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--brand-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-ghost{background:transparent;color:var(--brand-dark);border-color:var(--line);}
.btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand-dark);}
.btn-light{background:#fff;color:var(--brand-dark);}
.btn-light:hover{background:var(--brand-soft);color:var(--brand-dark);transform:translateY(-1px);}
.btn-block{width:100%;}
.side-note{margin:14px 0 0;font-size:12px;color:var(--muted);line-height:1.7;word-break:break-all;}

/* ---------- 移动顶栏 ---------- */
.topbar{
  display:none;position:sticky;top:0;z-index:70;
  align-items:center;justify-content:space-between;
  padding:12px 18px;background:rgba(255,255,255,.96);
  border-bottom:1px solid var(--line);backdrop-filter:blur(8px);
}
.nav-toggle{
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:#fff;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:4px;cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:transform .25s ease,opacity .25s ease;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-scrim{
  display:none;position:fixed;inset:0;background:rgba(16,33,29,.5);z-index:75;opacity:0;transition:opacity .25s ease;
}
.nav-scrim.is-open{display:block;opacity:1;}

/* ---------- 主体 ---------- */
.page-main{padding-bottom:8px;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  padding:26px 0 0;font-size:13px;color:var(--muted);
}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:#B9B3A6;}
.breadcrumb .current{color:#9A958A;max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}

.article-head{padding:26px 0 0;max-width:820px;}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:16px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  background:var(--brand-soft);color:var(--brand-dark);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-amber{background:#FBF1E2;color:#9A6620;}
.meta-text{font-size:13px;color:var(--muted);}
.article-head h1{font-size:32px;line-height:1.45;margin-bottom:18px;}
.head-rule{height:1px;background:var(--line);margin-bottom:30px;}
.cover-figure{margin:0 0 10px;border-radius:var(--radius-img);overflow:hidden;box-shadow:var(--shadow-sm);}
.cover-figure img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.cover-figure figcaption{font-size:13px;color:var(--muted);padding:10px 2px 0;text-align:center;}

/* ---------- 正文 ---------- */
.article-body{
  max-width:760px;margin:0 auto;
  font-size:17px;line-height:1.9;color:#22282A;
  padding-top:8px;
}
.article-body h2{
  position:relative;font-size:22px;margin:46px 0 18px;padding-left:16px;line-height:1.5;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:3px;border-radius:2px;background:var(--brand);
}
.article-body h3{font-size:18px;margin:32px 0 12px;}
.article-body h4{font-size:16px;margin:24px 0 10px;}
.article-body p{margin:0 0 1.2em;}
.article-body a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.article-body strong{font-weight:700;color:var(--ink);}
.article-body ul,.article-body ol{padding-left:1.5em;margin:0 0 1.3em;}
.article-body li{margin-bottom:.55em;}
.article-body ul li::marker{color:var(--brand);}
.article-body ol li::marker{color:var(--brand);font-weight:600;}
.article-body blockquote{
  margin:26px 0;padding:18px 22px;
  background:var(--brand-soft);border-left:4px solid var(--brand);
  border-radius:0 12px 12px 0;color:#2A3A36;
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{width:100%;height:auto;border-radius:var(--radius-img);margin:26px 0 10px;box-shadow:var(--shadow-sm);}
.article-body figure{margin:26px 0;}
.article-body figure img{margin-bottom:8px;}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;
  font-size:15px;background:#fff;border:1px solid var(--line);
  border-radius:12px;overflow:hidden;box-shadow:var(--shadow-sm);
}
.article-body thead th{
  background:var(--brand-soft);color:var(--brand-dark);
  font-weight:600;text-align:left;padding:13px 16px;border-bottom:1px solid var(--line);
}
.article-body tbody td{padding:13px 16px;border-top:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#FAF9F6;}
.article-body pre{
  background:#10211D;color:#DDE7E3;border-radius:12px;
  padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.75;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body code{
  background:#EFEDE6;color:#1E4A40;border-radius:6px;
  padding:2px 6px;font-size:.92em;
  font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}
.article-body pre code{background:transparent;color:inherit;padding:0;}

.empty-note{
  max-width:760px;margin:0 auto;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:44px 32px;text-align:center;box-shadow:var(--shadow-sm);
}
.empty-note i{font-size:28px;color:var(--amber);margin-bottom:14px;display:block;}
.empty-note h2{font-size:20px;margin-bottom:10px;}
.empty-note p{color:var(--muted);margin-bottom:20px;}

/* ---------- 标签 / 上下篇 ---------- */
.article-foot{max-width:760px;margin:56px auto 0;padding-top:26px;border-top:1px solid var(--line);}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-bottom:26px;}
.tag-row .label{font-size:13px;color:var(--muted);}
.tag{
  display:inline-block;padding:5px 13px;border-radius:999px;
  background:#fff;border:1px solid var(--line);
  font-size:13px;color:var(--muted);transition:all .2s ease;
}
.tag:hover{border-color:var(--brand);color:var(--brand-dark);background:var(--brand-soft);}
.pager{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.pager a{
  display:block;padding:16px 18px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);color:var(--ink);text-decoration:none;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.pager a:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:var(--brand);color:var(--ink);}
.pager .dir{display:block;font-size:12px;color:var(--muted);margin-bottom:6px;}
.pager .ttl{font-size:15px;font-weight:600;line-height:1.55;}
.pager .next{text-align:right;}

/* ---------- 板块通用 ---------- */
.section{padding-top:var(--gap);}
.section-head{margin-bottom:34px;max-width:720px;}
.section-head .eyebrow{
  display:inline-block;font-size:12px;font-weight:700;letter-spacing:.16em;
  color:var(--amber);text-transform:uppercase;margin-bottom:10px;
}
.section-head h2{font-size:26px;margin-bottom:12px;}
.section-head p{color:var(--muted);font-size:15px;margin:0;}

/* ---------- 相关推荐 ---------- */
.rec-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.rec-card{
  display:flex;flex-direction:column;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius-card);overflow:hidden;text-decoration:none;color:var(--ink);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.rec-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-md);border-color:#D6D2C6;color:var(--ink);}
.rec-card img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.rec-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1 1 auto;}
.rec-card h3{font-size:16px;line-height:1.6;margin-bottom:10px;transition:color .2s ease;}
.rec-card:hover h3{color:var(--brand);}
.rec-card p{font-size:13.5px;color:var(--muted);line-height:1.75;margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.rec-card .foot{margin-top:auto;display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--muted);}
.rec-card .foot i{transition:transform .2s ease;}
.rec-card:hover .foot i{transform:translateX(4px);color:var(--brand);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:860px;}
.faq-wrap ul.accordion{border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;background:#fff;box-shadow:var(--shadow-sm);}
.faq-wrap .accordion-item{border-bottom:1px solid var(--line);}
.faq-wrap .accordion-item:last-child{border-bottom:0;}
.faq-wrap .accordion-title{
  display:flex;align-items:center;gap:12px;
  min-height:56px;padding:16px 22px;
  font-size:16px;font-weight:600;color:var(--ink);
  background:#fff;border:0;position:relative;text-decoration:none;
  transition:background-color .2s ease,color .2s ease;
}
.faq-wrap .accordion-title::before{display:none;}
.faq-wrap .accordion-title:hover{background:var(--brand-soft);color:var(--brand-dark);}
.faq-wrap .accordion-title::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  margin-left:auto;font-size:12px;color:var(--brand);
}
.faq-wrap .accordion-item.is-active .accordion-title::after{content:"\f068";}
.faq-wrap .accordion-item.is-active .accordion-title{color:var(--brand-dark);}
.faq-wrap .accordion-content{padding:0 22px 20px 22px;border-top:0;border-left:3px solid var(--brand);color:var(--muted);font-size:15px;line-height:1.85;}
.faq-wrap .accordion-content p:last-child{margin-bottom:0;}

/* ---------- CTA ---------- */
.cta-band{
  margin-top:var(--gap);
  background:var(--dark);
  border-radius:20px;
  padding:56px 48px;
  text-align:center;
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:220px;height:220px;
  border-radius:50%;background:rgba(201,138,60,.14);
}
.cta-band h2{color:#fff;font-size:26px;margin-bottom:14px;position:relative;z-index:1;}
.cta-band p{color:#B9C6C2;font-size:15px;max-width:620px;margin:0 auto 28px;position:relative;z-index:1;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:center;position:relative;z-index:1;}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:var(--gap);background:var(--dark);color:#CBD5D1;padding:64px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.footer-brand strong{display:block;font-size:18px;color:#fff;margin-bottom:14px;letter-spacing:-0.01em;}
.footer-brand p{font-size:13.5px;line-height:1.9;color:#98A8A4;margin:0;max-width:340px;}
.footer-col h4{font-size:14px;color:#fff;margin-bottom:16px;font-weight:600;}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.footer-col li a{color:#CBD5D1;font-size:13.5px;text-decoration:none;}
.footer-col li a:hover{color:#fff;}
.footer-col p{font-size:13.5px;color:#98A8A4;margin:0 0 8px;word-break:break-all;}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid rgba(255,255,255,.1);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:12.5px;color:#8C9B97;
}

/* ---------- 响应式 ---------- */
@media (min-width:1024px){
  body{padding-left:var(--nav-w);}
}
@media (max-width:1023px){
  .topbar{display:flex;}
  .side-nav{transform:translateX(-102%);transition:transform .3s ease;width:min(86vw,340px);box-shadow:var(--shadow-lg);}
  .side-nav.is-open{transform:translateX(0);}
  .nav-item{font-size:16px;padding:14px 16px;}
  .section{padding-top:64px;}
  .cta-band{border-radius:16px;padding:44px 26px;}
  .rec-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px;}
}
@media (max-width:767px){
  :root{--gap:52px;}
  .container{padding:0 18px;}
  .article-head h1{font-size:24px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:19px;}
  .article-body h3{font-size:17px;}
  .section-head h2{font-size:21px;}
  .rec-grid{grid-template-columns:1fr;}
  .pager{grid-template-columns:1fr;}
  .pager .next{text-align:left;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .cta-band h2{font-size:21px;}
}
@media (max-width:520px){
  .breadcrumb .current{max-width:180px;}
  .article-head h1{font-size:22px;}
  .faq-wrap .accordion-title{font-size:15px;padding:14px 16px;}
  .faq-wrap .accordion-content{padding-left:16px;padding-right:16px;}
}

/* roulang page: category1 */
:root{
  --primary:#1E6E5F;
  --primary-dark:#175A4E;
  --primary-soft:#E7F0ED;
  --amber:#C98A3C;
  --ink:#14181A;
  --ink-2:#5A6266;
  --line:#E3E0D8;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --deep:#10211D;
  --nav-w:248px;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 2px 8px rgba(20,24,26,.06);
  --shadow-2:0 10px 26px rgba(20,24,26,.10);
  --shadow-3:0 18px 40px rgba(20,24,26,.14);
}
*,*::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","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--radius-img)}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.4;color:var(--ink)}
h1{font-size:clamp(28px,3.6vw,44px)}
h2{font-size:clamp(22px,2.4vw,32px)}
h3{font-size:clamp(17px,1.5vw,22px)}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-dark);text-decoration:underline}
button,input{font:inherit;color:inherit}
button{cursor:pointer}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px}
::selection{background:var(--primary-soft);color:var(--primary-dark)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}
.page-wrap{padding-left:var(--nav-w);min-height:100vh;display:flex;flex-direction:column}
.section{padding:88px 0}
.section-tight{padding:64px 0}
.section-alt{background:#fff}

/* ============ 左侧竖向导航 ============ */
.site-header{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:#fff;border-right:1px solid var(--line);
  padding:28px 22px 24px;display:flex;flex-direction:column;gap:26px;
  z-index:70;overflow-y:auto;
}
.header-top{display:flex;align-items:center;justify-content:space-between;gap:12px}
.brand{display:flex;align-items:center;gap:12px}
.brand:hover{text-decoration:none}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  background:linear-gradient(150deg,var(--primary),var(--primary-dark));
  color:#fff;font-size:19px;font-weight:700;display:flex;align-items:center;justify-content:center;
  box-shadow:var(--shadow-1);
}
.brand-text{display:flex;flex-direction:column;line-height:1.3}
.brand-text strong{font-size:16px;font-weight:700;color:var(--ink)}
.brand-text small{font-size:12px;color:var(--ink-2);letter-spacing:.02em}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:#fff;flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink)}
.nav-menu{display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;display:block;padding:12px 14px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--ink-2);transition:background .2s ease,color .2s ease;
}
.nav-item:hover{background:var(--primary-soft);color:var(--primary-dark);text-decoration:none}
.nav-item.is-active{background:var(--primary-soft);color:var(--primary);font-weight:600}
.nav-item.is-active::before{
  content:"";position:absolute;left:-22px;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--primary);
}
.header-foot{margin-top:auto;display:flex;flex-direction:column;gap:12px}
.header-mail{font-size:13px;color:var(--ink-2)}
.header-note{font-size:12px;color:#8A9296;line-height:1.7}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{border-color:rgba(255,255,255,.6);background:rgba(255,255,255,.08);color:#fff}
.btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff}
.btn-outline{border-color:var(--primary);background:transparent;color:var(--primary)}
.btn-outline:hover{background:rgba(30,110,95,.06);color:var(--primary-dark)}
.btn-block{width:100%}
.btn-sm{height:40px;padding:0 18px;font-size:14px}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;background:var(--primary-soft);
  color:var(--primary);font-size:12px;font-weight:600;letter-spacing:.02em;
}
.badge-amber{background:rgba(201,138,60,.12);color:#A96F22}
.badge-light{background:rgba(255,255,255,.16);color:#fff}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;color:#fff;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(16,33,29,.62) 0%,rgba(16,33,29,.86) 100%);
}
.page-hero .container{position:relative;z-index:2;padding-top:104px;padding-bottom:76px;max-width:1200px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:rgba(255,255,255,.7);margin-bottom:22px}
.crumb a{color:rgba(255,255,255,.82)}
.crumb a:hover{color:#fff}
.crumb .sep{opacity:.55}
.page-hero h1{color:#fff;max-width:900px}
.hero-sub{margin-top:16px;font-size:17px;color:rgba(255,255,255,.9);max-width:660px}
.hero-lead{margin-top:14px;font-size:15px;line-height:1.9;color:rgba(255,255,255,.78);max-width:720px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px}
.hero-meta{display:flex;flex-wrap:wrap;gap:26px;margin-top:36px;padding-top:24px;border-top:1px solid rgba(255,255,255,.18)}
.hero-meta div{font-size:13px;color:rgba(255,255,255,.72)}
.hero-meta strong{display:block;font-size:22px;color:#fff;letter-spacing:-.01em}

/* ============ 通用板块标题 ============ */
.section-head{max-width:740px;margin-bottom:44px}
.section-head h2{margin-top:14px}
.section-head p{margin-top:14px;color:var(--ink-2);font-size:16px}
.section-head-center{margin-left:auto;margin-right:auto;text-align:center}

/* ============ 入口要点 ============ */
.lead-grid{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:56px;align-items:start}
.lead-copy p{margin-top:16px;color:var(--ink-2)}
.stat-row{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:18px;margin-top:34px;padding-top:26px;border-top:1px solid var(--line)}
.stat strong{display:block;font-size:26px;color:var(--primary);letter-spacing:-.02em}
.stat span{font-size:13px;color:var(--ink-2)}
.point-list li{display:flex;gap:16px;padding:18px 0;border-top:1px solid var(--line)}
.point-list li:last-child{border-bottom:1px solid var(--line)}
.point-list .idx{font-size:13px;font-weight:700;color:var(--amber);letter-spacing:.08em;padding-top:3px}
.point-list strong{display:block;font-size:16px;font-weight:600}
.point-list p{margin-top:4px;font-size:14px;color:var(--ink-2);line-height:1.75}

/* ============ 图文交错长条 ============ */
.flow-list{display:flex;flex-direction:column;gap:56px}
.flow-row{display:grid;grid-template-columns:minmax(0,5fr) minmax(0,7fr);gap:40px;align-items:center}
.flow-row:nth-child(even){grid-template-columns:minmax(0,7fr) minmax(0,5fr)}
.flow-row:nth-child(even) .flow-media{order:2}
.flow-media{position:relative;overflow:hidden;border-radius:var(--radius-card);box-shadow:var(--shadow-1)}
.flow-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:0;transition:transform .5s ease}
.flow-row:hover .flow-media img{transform:scale(1.03)}
.flow-body h3{margin-top:14px}
.flow-body p{margin-top:12px;color:var(--ink-2);font-size:15px}
.flow-tip{margin-top:14px;font-size:13px;color:var(--ink-2);background:#fff;border-left:3px solid var(--amber);padding:10px 14px;border-radius:0 8px 8px 0}
.link-arrow{display:inline-flex;align-items:center;gap:6px;margin-top:18px;font-size:14px;font-weight:600;color:var(--primary)}
.link-arrow i{transition:transform .2s ease}
.link-arrow:hover{text-decoration:none;color:var(--primary-dark)}
.link-arrow:hover i{transform:translateX(4px)}

/* ============ 核对清单 ============ */
.check-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.check-list li{
  display:flex;gap:18px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:26px 24px;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.check-list li:hover{transform:translateY(-2px);box-shadow:var(--shadow-2)}
.check-num{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;
  background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;
}
.check-list h3{font-size:17px}
.check-list p{margin-top:8px;font-size:14px;color:var(--ink-2);line-height:1.78}

/* ============ FAQ ============ */
.faq-list{max-width:900px;border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  min-height:56px;padding:18px 0;font-size:16px;font-weight:600;color:var(--ink);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;font-weight:600;color:var(--primary);line-height:1}
.faq-item[open] summary::after{content:"–"}
.faq-item summary:hover{color:var(--primary)}
.faq-body{
  margin:0 0 24px;padding:2px 0 2px 16px;border-left:3px solid var(--primary);
  font-size:15px;color:var(--ink-2);line-height:1.85;
}

/* ============ 深色 CTA ============ */
.cta-section{background:var(--deep);color:#fff;padding:80px 0}
.cta-inner{max-width:720px;margin:0 auto;text-align:center}
.cta-inner h2{color:#fff}
.cta-inner p{margin-top:16px;color:rgba(255,255,255,.76);font-size:15px}
.cta-form{display:flex;gap:12px;margin-top:30px}
.cta-form input{
  flex:1;min-width:0;height:46px;padding:0 16px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.26);background:rgba(255,255,255,.08);color:#fff;
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.cta-form input::placeholder{color:rgba(255,255,255,.55)}
.cta-form input:focus{outline:none;border-color:rgba(255,255,255,.8);background:rgba(255,255,255,.14);box-shadow:0 0 0 3px rgba(255,255,255,.12)}
.cta-note{margin-top:16px;font-size:13px;color:rgba(255,255,255,.55)}
.cta-links{display:flex;flex-wrap:wrap;gap:20px;justify-content:center;margin-top:26px;font-size:14px}
.cta-links a{color:#fff;border-bottom:1px solid rgba(255,255,255,.4);padding-bottom:2px}
.cta-links a:hover{text-decoration:none;border-color:#fff}

/* ============ 页脚 ============ */
.site-footer{background:var(--deep);color:#CBD5D1;padding:64px 0 28px;margin-top:auto}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:36px}
.footer-brand strong{display:block;color:#fff;font-size:18px;margin-bottom:14px;letter-spacing:-.01em}
.footer-brand p{font-size:14px;line-height:1.8;color:#9FB0AB;max-width:320px}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px}
.footer-col ul li{margin-bottom:10px}
.footer-col a{color:#CBD5D1;font-size:14px}
.footer-col a:hover{color:#fff;text-decoration:none}
.footer-col p{font-size:14px;color:#9FB0AB;margin-bottom:8px}
.footer-bottom{
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;
  margin-top:46px;padding-top:22px;border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;color:#8C9C97;
}

/* ============ 响应式 ============ */
@media (max-width:1280px){
  .container{padding:0 28px}
}
@media (max-width:1023px){
  .page-wrap{padding-left:0}
  .site-header{
    position:sticky;top:0;left:auto;bottom:auto;width:auto;height:auto;
    flex-direction:row;align-items:center;justify-content:space-between;
    padding:10px 20px;min-height:64px;border-right:0;border-bottom:1px solid var(--line);
    gap:0;overflow:visible;
  }
  .brand-text small{display:none}
  .nav-toggle{display:flex}
  .nav-menu{
    position:fixed;top:64px;left:0;right:0;bottom:0;background:#fff;
    flex-direction:column;gap:6px;padding:24px 20px 160px;
    transform:translateY(-14px);opacity:0;visibility:hidden;pointer-events:none;
    transition:transform .24s ease,opacity .24s ease,visibility .24s ease;
    overflow-y:auto;z-index:80;
  }
  .nav-menu.is-open{transform:none;opacity:1;visibility:visible;pointer-events:auto}
  .nav-item{font-size:18px;padding:16px 14px}
  .header-foot{
    position:fixed;left:0;right:0;bottom:0;background:#fff;
    border-top:1px solid var(--line);padding:16px 20px;
    transform:translateY(100%);opacity:0;pointer-events:none;
    transition:transform .24s ease,opacity .24s ease;z-index:81;
  }
  body.nav-open .header-foot{transform:none;opacity:1;pointer-events:auto}
  body.nav-open{overflow:hidden}
  .section{padding:60px 0}
  .lead-grid{grid-template-columns:1fr;gap:36px}
  .flow-row,.flow-row:nth-child(even){grid-template-columns:1fr;gap:24px}
  .flow-row:nth-child(even) .flow-media{order:0}
  .check-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
  .page-hero .container{padding-top:64px;padding-bottom:56px}
}
@media (max-width:640px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:52px 0}
  .section-head{margin-bottom:30px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .hero-meta{gap:18px}
  .stat-row{grid-template-columns:1fr 1fr;gap:14px}
  .cta-form{flex-direction:column}
  .cta-form .btn{width:100%}
  .cta-section{padding:58px 0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
  .flow-list{gap:40px}
}

/* roulang page: category2 */
:root{
  --primary:#1E6E5F;
  --primary-dark:#175A4E;
  --primary-soft:#E7F0ED;
  --amber:#C98A3C;
  --ink:#14181A;
  --text-2:#5A6266;
  --line:#E3E0D8;
  --page:#F6F4EF;
  --card:#FFFFFF;
  --deep:#10211D;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-img:12px;
  --shadow-1:0 2px 8px rgba(20,24,26,.06);
  --shadow-2:0 10px 26px rgba(20,24,26,.10);
  --shadow-3:0 18px 40px rgba(20,24,26,.14);
  --space-section:88px;
  --nav-w:248px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--page);
}
h1,h2,h3,h4{font-weight:700;letter-spacing:-0.01em;color:var(--ink);line-height:1.35;margin:0;}
h1{font-size:44px;}
h2{font-size:32px;}
h3{font-size:22px;}
h4{font-size:18px;font-weight:600;}
p{margin:0 0 14px;}
a{color:var(--primary);text-decoration:none;transition:color .18s ease;}
a:hover{color:var(--primary-dark);}
img{max-width:100%;display:block;}
button,input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
ul{margin:0;padding:0;list-style:none;}

/* ---------- 布局骨架 ---------- */
.layout{min-height:100vh;}
.side-nav{
  position:fixed;top:0;left:0;bottom:0;width:var(--nav-w);
  background:var(--card);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:30px 22px 26px;z-index:60;
}
.content-area{margin-left:var(--nav-w);}
.container{max-width:1200px;margin:0 auto;padding:0 32px;}
.section{padding:var(--space-section) 0;}
.section--tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:42px;}
.section-head h2{margin-bottom:14px;}
.section-head p{color:var(--text-2);font-size:17px;margin:0;}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.08em;font-weight:600;
  color:var(--primary);background:var(--primary-soft);
  padding:5px 14px;border-radius:999px;margin-bottom:18px;
}
.divider-cloud{height:1px;background:var(--line);opacity:.9;border:0;margin:0;}

/* ---------- 侧栏品牌与导航 ---------- */
.brand{display:flex;align-items:center;gap:12px;margin-bottom:34px;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:17px;letter-spacing:.02em;
}
.brand-text{font-weight:700;font-size:16px;color:var(--ink);line-height:1.25;}
.brand-sub{display:block;font-size:12px;font-weight:400;color:var(--text-2);letter-spacing:.02em;}
.nav-menu{display:flex;flex-direction:column;gap:4px;}
.nav-item{
  display:block;padding:11px 14px;border-radius:10px;font-size:15px;
  color:var(--text-2);border-left:3px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease;
}
.nav-item:hover{background:var(--primary-soft);color:var(--primary-dark);}
.nav-item.is-active{
  background:var(--primary-soft);color:var(--primary);font-weight:600;
  border-left-color:var(--primary);
}
.side-foot{margin-top:auto;padding-top:26px;border-top:1px solid var(--line);}
.side-meta{font-size:13px;color:var(--text-2);margin:14px 0 0;line-height:1.7;}
.nav-toggle{
  display:none;background:transparent;border:1px solid var(--line);border-radius:10px;
  width:44px;height:44px;cursor:pointer;color:var(--ink);font-size:20px;line-height:1;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{background:var(--primary-soft);color:var(--primary);}
.mobile-head{display:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;text-align:center;
  transition:background .18s ease,color .18s ease,transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.btn-primary{background:var(--primary);color:#fff;box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:var(--shadow-2);}
.btn-ghost{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-ghost:hover{background:rgba(30,110,95,.06);color:var(--primary-dark);}
.btn-light{background:#fff;color:var(--primary);}
.btn-light:hover{background:var(--primary-soft);color:var(--primary-dark);transform:translateY(-1px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline-light:hover{background:rgba(255,255,255,.12);color:#fff;}
.btn-block{width:100%;}
.btn-sm{padding:10px 20px;font-size:14px;}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-block;font-size:12px;font-weight:600;padding:4px 12px;border-radius:999px;
  background:var(--primary-soft);color:var(--primary);letter-spacing:.02em;
}
.badge-amber{background:rgba(201,138,60,.14);color:#9A6A26;}

/* ---------- 内页 Hero ---------- */
.page-hero{position:relative;overflow:hidden;background:var(--deep);}
.page-hero .hero-bg{
  position:absolute;inset:0;width:100%;height:100%;object-fit:cover;opacity:.55;
}
.page-hero .hero-overlay{
  position:absolute;inset:0;
  background:linear-gradient(105deg,rgba(16,33,29,.92) 0%,rgba(16,33,29,.72) 52%,rgba(16,33,29,.42) 100%);
}
.hero-inner{position:relative;z-index:2;padding:96px 32px 88px;max-width:860px;}
.page-hero .badge{background:rgba(255,255,255,.14);color:#DDEAE5;}
.page-hero h1{color:#fff;font-size:44px;margin:20px 0 20px;max-width:820px;}
.hero-lead{color:#D5E2DE;font-size:17px;max-width:680px;margin-bottom:30px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ---------- 速览条 ---------- */
.facts-strip{
  display:flex;flex-wrap:wrap;background:var(--card);border:1px solid var(--line);
  border-radius:var(--radius-card);box-shadow:var(--shadow-1);overflow:hidden;
}
.fact{
  flex:1 1 220px;padding:28px 26px;border-right:1px solid var(--line);
}
.fact:last-child{border-right:0;}
.fact-num{
  font-size:26px;font-weight:700;color:var(--amber);letter-spacing:-.02em;display:block;line-height:1.2;
}
.fact-title{font-weight:600;margin:8px 0 6px;font-size:16px;}
.fact p{color:var(--text-2);font-size:14px;margin:0;line-height:1.75;}

/* ---------- 两列大图卡 ---------- */
.card-grid{margin-left:-14px;margin-right:-14px;}
.card-cell{padding-left:14px;padding-right:14px;margin-bottom:34px;}
.media-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);height:100%;
  display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease;
}
.media-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);}
.media-card .thumb{position:relative;aspect-ratio:16/10;overflow:hidden;background:var(--primary-soft);}
.media-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease;}
.media-card:hover .thumb img{transform:scale(1.03);}
.media-card .thumb .badge{
  position:absolute;left:14px;top:14px;background:rgba(255,255,255,.94);color:var(--primary);
  box-shadow:var(--shadow-1);
}
.media-body{padding:24px 26px 26px;display:flex;flex-direction:column;flex:1 1 auto;}
.media-body h3{font-size:20px;margin-bottom:12px;}
.media-body p{color:var(--text-2);font-size:15px;margin:0 0 12px;line-height:1.8;}
.media-body p:last-of-type{margin-bottom:18px;}
.media-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--text-2);
}
.arrow-link{display:inline-flex;align-items:center;gap:6px;font-weight:600;font-size:14px;color:var(--primary);}
.arrow-link span{transition:transform .18s ease;display:inline-block;}
.arrow-link:hover span{transform:translateX(4px);}
.load-more-wrap{text-align:center;margin-top:8px;}
.load-more-wrap p{color:var(--text-2);font-size:14px;margin-bottom:16px;}

/* ---------- 核验顺序（编号线条） ---------- */
.order-list{border-top:1px solid var(--line);}
.order-item{
  display:flex;gap:22px;padding:26px 4px;border-bottom:1px solid var(--line);
  align-items:flex-start;
}
.order-index{
  flex:0 0 40px;height:40px;border-radius:999px;background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:15px;
}
.order-item h3{font-size:18px;margin-bottom:6px;}
.order-item p{color:var(--text-2);font-size:15px;margin:0;}

/* ---------- 数据条 ---------- */
.metrics{
  display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.metric{flex:1 1 240px;padding:34px 30px;border-right:1px solid var(--line);}
.metric:last-child{border-right:0;}
.metric strong{display:block;font-size:34px;color:var(--primary);letter-spacing:-.02em;line-height:1.15;}
.metric span{display:block;margin-top:8px;color:var(--text-2);font-size:14px;}

/* ---------- 问答双列 ---------- */
.qa-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 26px 24px;height:100%;box-shadow:var(--shadow-1);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.qa-card:hover{border-color:var(--primary);box-shadow:var(--shadow-2);}
.qa-card h3{font-size:17px;margin-bottom:10px;display:flex;gap:10px;align-items:flex-start;}
.qa-card h3::before{
  content:"问";flex:0 0 22px;height:22px;border-radius:6px;background:var(--primary-soft);
  color:var(--primary);font-size:12px;font-weight:700;display:flex;align-items:center;justify-content:center;
  margin-top:3px;
}
.qa-card p{color:var(--text-2);font-size:15px;margin:0;line-height:1.85;}

/* ---------- CTA ---------- */
.cta-band{background:var(--deep);color:#fff;border-radius:18px;padding:56px 48px;position:relative;overflow:hidden;}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;border-radius:50%;
  background:rgba(30,110,95,.35);filter:blur(6px);
}
.cta-band .cta-inner{position:relative;z-index:2;max-width:720px;margin:0 auto;text-align:center;}
.cta-band h2{color:#fff;font-size:30px;margin-bottom:14px;}
.cta-band p{color:#C6D5D0;margin-bottom:28px;}
.cta-form{display:flex;gap:12px;justify-content:center;flex-wrap:wrap;}
.cta-form input{
  flex:1 1 320px;max-width:420px;height:48px;padding:0 16px;border-radius:var(--radius-btn);
  border:1px solid rgba(255,255,255,.28);background:rgba(255,255,255,.08);color:#fff;
}
.cta-form input::placeholder{color:#9FB4AE;}
.cta-form input:focus{outline:none;border-color:#fff;background:rgba(255,255,255,.16);}

/* ---------- 页脚 ---------- */
.site-footer{background:var(--deep);color:#CBD5D1;padding:72px 0 30px;margin-top:0;}
.footer-grid{display:flex;flex-wrap:wrap;gap:40px;justify-content:space-between;}
.footer-brand{flex:1 1 280px;max-width:340px;}
.footer-brand strong{display:block;color:#fff;font-size:19px;margin-bottom:14px;}
.footer-brand p{color:#9FB4AE;font-size:14px;line-height:1.85;margin:0;}
.footer-col{flex:1 1 180px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-col ul li{margin-bottom:10px;}
.footer-col p{color:#9FB4AE;font-size:14px;margin:0 0 10px;line-height:1.75;}
.site-footer a{color:#CBD5D1;font-size:14px;}
.site-footer a:hover{color:#fff;}
.footer-bottom{
  margin-top:52px;padding-top:24px;border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  color:#8FA39D;font-size:13px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1080px;}
}
@media (max-width:1023px){
  .side-nav{
    position:sticky;top:0;left:0;right:0;bottom:auto;width:100%;height:auto;
    flex-direction:column;padding:0;border-right:0;border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-1);
  }
  .mobile-head{
    display:flex;align-items:center;justify-content:space-between;
    padding:12px 20px;width:100%;
  }
  .brand{margin-bottom:0;}
  .nav-toggle{display:flex;}
  .nav-menu{
    display:none;position:fixed;top:64px;left:0;right:0;bottom:0;
    background:var(--card);padding:22px 20px;overflow-y:auto;gap:6px;
    border-top:1px solid var(--line);
  }
  .side-nav.is-open .nav-menu{display:flex;}
  .nav-item{font-size:17px;padding:15px 16px;}
  .side-foot{
    display:none;position:fixed;bottom:0;left:0;right:0;background:var(--card);
    padding:18px 20px 26px;border-top:1px solid var(--line);z-index:61;
  }
  .side-nav.is-open .side-foot{display:block;}
  .content-area{margin-left:0;}
  .hero-inner{padding:68px 0 60px;}
  .page-hero h1{font-size:32px;}
  .cta-band{padding:44px 26px;border-radius:14px;}
  :root{--space-section:60px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  h1{font-size:30px;}
  h2{font-size:24px;}
  .page-hero h1{font-size:28px;}
  .hero-lead{font-size:16px;}
  .hero-inner{padding:56px 0 52px;}
  .fact{padding:22px 20px;border-right:0;border-bottom:1px solid var(--line);}
  .fact:last-child{border-bottom:0;}
  .metric{padding:24px 20px;border-right:0;border-bottom:1px solid var(--line);}
  .metric:last-child{border-bottom:0;}
  .cta-form input{flex:1 1 100%;max-width:100%;}
  .btn{width:100%;}
  .hero-actions .btn{width:auto;flex:1 1 auto;}
  .footer-grid{gap:32px;}
}
@media (max-width:519px){
  :root{--space-section:48px;}
  .page-hero h1{font-size:25px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .media-body{padding:20px 20px 22px;}
  .order-item{gap:14px;padding:20px 0;}
  .cta-band h2{font-size:23px;}
}

/* roulang page: category3 */
:root{
  --primary:#1E6E5F;
  --primary-dark:#175A4E;
  --primary-light:#E7F0ED;
  --accent:#C98A3C;
  --ink:#14181A;
  --muted:#5A6266;
  --line:#E3E0D8;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --dark:#10211D;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 2px 8px rgba(20,24,26,.06);
  --sh-2:0 10px 26px rgba(20,24,26,.10);
  --sh-3:0 18px 40px rgba(20,24,26,.14);
  --nav-w:248px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--ink);
  background:var(--bg);
  font-weight:400;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--primary-dark);text-decoration:underline;}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-.01em;line-height:1.4;color:var(--ink);}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px;}
section{scroll-margin-top:88px;}

/* ---------- 布局骨架 ---------- */
.site-main{
  margin-left:var(--nav-w);
  padding:0 40px;
  min-height:100vh;
  display:flex;
  flex-direction:column;
}
.container{width:100%;max-width:1200px;margin:0 auto;}

/* ---------- 侧边导航 ---------- */
.site-sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--nav-w);
  background:var(--card);
  border-right:1px solid var(--line);
  padding:30px 20px 26px;
  display:flex;
  flex-direction:column;
  z-index:60;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;color:var(--ink);}
.brand:hover{text-decoration:none;color:var(--ink);}
.brand-mark{
  flex:0 0 40px;width:40px;height:40px;border-radius:12px;
  background:var(--primary);
  color:#fff;font-size:17px;font-weight:700;
  display:grid;place-items:center;
  letter-spacing:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.3;}
.brand-text strong{font-size:15.5px;font-weight:700;letter-spacing:-.01em;}
.brand-text span{font-size:11.5px;color:var(--muted);letter-spacing:.02em;}
.nav-menu{display:flex;flex-direction:column;gap:4px;margin-top:38px;}
.nav-item{
  position:relative;
  display:block;
  padding:11px 14px;
  border-radius:10px;
  font-size:15px;
  font-weight:500;
  color:#46524F;
  transition:background .2s ease,color .2s ease;
}
.nav-item:hover{background:var(--primary-light);color:var(--primary-dark);text-decoration:none;}
.nav-item.is-active{background:var(--primary-light);color:var(--primary-dark);font-weight:600;}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:11px;bottom:11px;width:3px;
  border-radius:2px;background:var(--primary);
}
.sidebar-foot{margin-top:auto;padding-top:26px;border-top:1px solid var(--line);}
.sidebar-mail{margin:14px 0 4px;font-size:13px;color:var(--muted);}
.sidebar-note{margin:0;font-size:12px;color:#8B918D;line-height:1.6;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  text-decoration:none;
  white-space:nowrap;
}
.btn-primary{background:var(--primary);color:#fff;}
.btn-primary:hover{background:var(--primary-dark);color:#fff;text-decoration:none;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{background:rgba(255,255,255,.08);border-color:rgba(255,255,255,.5);color:#fff;}
.btn-ghost:hover{background:rgba(255,255,255,.18);color:#fff;text-decoration:none;transform:translateY(-1px);}
.btn-outline{background:transparent;border-color:var(--primary);color:var(--primary);}
.btn-outline:hover{background:rgba(30,110,95,.07);color:var(--primary-dark);text-decoration:none;}
.btn-block{display:flex;width:100%;}

/* ---------- 移动顶栏 ---------- */
.mobile-bar{
  display:none;
  position:sticky;top:0;z-index:70;
  align-items:center;justify-content:space-between;
  padding:12px 16px;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.mobile-brand{font-size:16px;font-weight:700;color:var(--ink);letter-spacing:-.01em;}
.mobile-brand:hover{color:var(--primary);text-decoration:none;}
.menu-toggle{
  width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line);background:var(--card);
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:5px;
  cursor:pointer;padding:0;
}
.menu-toggle span{display:block;width:18px;height:2px;border-radius:2px;background:var(--ink);transition:transform .22s ease,opacity .22s ease;}
.menu-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.menu-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.menu-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer-mask{
  display:none;position:fixed;inset:0;z-index:55;
  background:rgba(16,33,29,.42);
  opacity:0;transition:opacity .25s ease;
}
.drawer-mask.is-open{display:block;opacity:1;}

/* ---------- Hero ---------- */
.hero{
  position:relative;
  margin-top:26px;
  min-height:62vh;
  border-radius:20px;
  overflow:hidden;
  display:flex;
  align-items:flex-end;
  padding:52px 48px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  box-shadow:var(--sh-2);
}
.hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(16,33,29,.9) 0%,rgba(16,33,29,.66) 52%,rgba(16,33,29,.3) 100%);
}
.hero-inner{position:relative;z-index:2;max-width:760px;color:#fff;}
.crumbs{display:flex;align-items:center;gap:10px;font-size:13px;margin-bottom:18px;flex-wrap:wrap;}
.crumbs a{color:rgba(255,255,255,.82);}
.crumbs a:hover{color:#fff;text-decoration:none;}
.crumbs .sep{color:rgba(255,255,255,.4);}
.crumbs .current{color:rgba(255,255,255,.62);}
.hero h1{
  font-size:44px;line-height:1.28;color:#fff;font-weight:700;
  letter-spacing:-.015em;
}
.hero-sub{
  margin:18px 0 0;font-size:17px;line-height:1.8;
  color:rgba(255,255,255,.86);max-width:640px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin:28px 0 0;}
.hero-badges li{
  font-size:12.5px;padding:6px 14px;border-radius:999px;
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.24);
  color:rgba(255,255,255,.9);
}

/* ---------- 板块通用 ---------- */
.section{padding:88px 0 0;}
.section--band{
  margin-top:88px;
  padding:72px 0;
  background:#fff;
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.section--band .section{padding:0;}
.sec-head{max-width:740px;margin-bottom:42px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12.5px;font-weight:600;color:var(--accent);letter-spacing:.08em;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--accent);opacity:.7;}
.sec-head h2{font-size:32px;margin:14px 0 14px;}
.sec-head p{color:var(--muted);font-size:16px;margin:0;}

/* ---------- 故障速览 ---------- */
.stat-row{
  display:grid;grid-template-columns:repeat(4,1fr);
  border-top:1px solid var(--line);
  margin-top:6px;
}
.stat-item{padding:30px 26px 26px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-num{display:block;font-size:13px;font-weight:700;color:var(--accent);letter-spacing:.12em;margin-bottom:14px;}
.stat-item h3{font-size:18px;margin-bottom:10px;}
.stat-item p{font-size:14.5px;color:var(--muted);line-height:1.75;margin:0;}

/* ---------- 时间线 ---------- */
.timeline{margin-top:8px;}
.step{position:relative;padding:0 0 34px 68px;}
.step:last-child{padding-bottom:0;}
.step::before{
  content:"";position:absolute;left:19px;top:44px;bottom:0;width:1px;
  background:var(--line);
}
.step:last-child::before{display:none;}
.step-num{
  position:absolute;left:0;top:0;
  width:40px;height:40px;border-radius:50%;
  background:#fff;border:1px solid var(--line);
  color:var(--accent);font-size:14px;font-weight:700;
  display:grid;place-items:center;
}
.step.is-key .step-num{background:var(--primary);border-color:var(--primary);color:#fff;}
.step-body{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.step-body:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6D2C7;}
.step-body h3{font-size:18px;margin-bottom:10px;}
.step-body p{font-size:15px;color:var(--muted);margin:0;}
.step-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:16px;}
.step-tags li{
  font-size:12.5px;color:var(--primary-dark);
  background:var(--primary-light);
  border-radius:999px;padding:5px 12px;
}

/* ---------- 设备对照 ---------- */
.panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px 26px;height:100%;
  box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.panel:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.panel h3{font-size:19px;margin-bottom:20px;padding-bottom:16px;border-bottom:1px solid var(--line);}
.panel dl{margin:0;}
.panel dt{font-size:15px;font-weight:600;color:var(--ink);margin-bottom:6px;}
.panel dd{margin:0 0 18px;font-size:14.5px;color:var(--muted);line-height:1.75;}
.panel dd:last-child{margin-bottom:0;}
.media-figure{margin:36px 0 0;}
.media-figure img{
  width:100%;aspect-ratio:21/9;object-fit:cover;
  border-radius:var(--r-img);
  box-shadow:var(--sh-1);
}
.media-figure figcaption{font-size:13px;color:var(--muted);margin-top:12px;text-align:center;}

/* ---------- 自查清单 ---------- */
.section-split{display:grid;grid-template-columns:1.15fr 1fr;gap:48px;align-items:start;}
.checklist{display:grid;grid-template-columns:1fr 1fr;gap:0 28px;}
.checklist li{
  display:flex;gap:12px;align-items:flex-start;
  padding:15px 0;border-bottom:1px solid var(--line);
  font-size:15px;color:#2C3433;
}
.tick{
  flex:0 0 20px;width:20px;height:20px;border-radius:50%;
  background:var(--primary-light);color:var(--primary);
  font-size:12px;font-weight:700;display:grid;place-items:center;
  margin-top:3px;
}
.quick-links{display:flex;flex-direction:column;gap:14px;}
.link-card{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px 22px;box-shadow:var(--sh-1);
  transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
  color:var(--ink);
}
.link-card:hover{text-decoration:none;color:var(--ink);transform:translateY(-2px);box-shadow:var(--sh-2);border-color:#D6D2C7;}
.link-card strong{display:block;font-size:16px;margin-bottom:4px;}
.link-card span{font-size:13.5px;color:var(--muted);}
.link-card .arrow{color:var(--primary);font-size:18px;transition:transform .22s ease;}
.link-card:hover .arrow{transform:translateX(4px);}

/* ---------- FAQ ---------- */
.faq-list{margin-top:8px;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:56px;padding:20px 4px;
  font-size:17px;font-weight:600;color:var(--ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:400;color:var(--primary);
  transition:transform .22s ease;
}
.faq-item summary:hover{color:var(--primary-dark);}
.faq-item[open] summary{color:var(--primary-dark);}
.faq-item[open] summary::after{content:"−";}
.faq-body{
  padding:0 4px 24px 18px;
  border-left:3px solid var(--primary);
  margin-bottom:6px;
}
.faq-body p{font-size:15px;color:var(--muted);margin:0;}

/* ---------- CTA ---------- */
.cta{
  background:var(--dark);
  border-radius:20px;
  padding:60px 44px;
  text-align:center;
  margin-top:88px;
  position:relative;
  overflow:hidden;
  box-shadow:var(--sh-3);
}
.cta::before{
  content:"";position:absolute;top:-120px;right:-80px;width:280px;height:280px;
  border-radius:50%;background:rgba(30,110,95,.35);
}
.cta-inner{position:relative;z-index:2;max-width:720px;margin:0 auto;}
.cta h2{color:#fff;font-size:30px;}
.cta p{color:#B7C6C2;font-size:15.5px;margin:16px 0 0;}
.cta-form{
  display:flex;gap:12px;max-width:560px;margin:30px auto 0;
}
.cta-form input[type="email"]{
  flex:1;min-width:0;height:48px;
  border-radius:var(--r-btn);
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.07);
  color:#fff;padding:0 16px;font-size:15px;
  transition:border-color .2s ease,background .2s ease;
}
.cta-form input[type="email"]::placeholder{color:#8FA09B;}
.cta-form input[type="email"]:focus{
  outline:none;border-color:#7FD1BF;background:rgba(255,255,255,.12);
}
.cta-note{font-size:13px;color:#8E9C98;margin-top:18px;}
.cta-note a{color:#CBD5D1;}
.cta-note a:hover{color:#fff;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin:88px -40px 0;
  background:var(--dark);
  color:#CBD5D1;
  padding:64px 40px 24px;
  border-radius:24px 24px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:36px;
  max-width:1200px;
  margin:0 auto;
}
.footer-brand strong{display:block;color:#fff;font-size:17px;margin-bottom:14px;}
.footer-brand p{font-size:14px;line-height:1.8;color:#9FAEAA;margin:0;max-width:320px;}
.footer-col h4{color:#fff;font-size:15px;margin-bottom:16px;font-weight:600;}
.footer-col ul{display:flex;flex-direction:column;gap:2px;}
.footer-col li a{color:#CBD5D1;font-size:14.5px;display:inline-block;padding:5px 0;}
.footer-col li a:hover{color:#fff;text-decoration:none;}
.footer-col p{font-size:14px;color:#9FAEAA;margin:0 0 8px;}
.footer-bottom{
  max-width:1200px;margin:44px auto 0;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:#8E9C98;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container{max-width:1080px;}
}
@media (max-width:1023px){
  .site-sidebar{
    width:282px;
    transform:translateX(-100%);
    transition:transform .28s ease;
    box-shadow:var(--sh-3);
    overflow-y:auto;
  }
  .site-sidebar.is-open{transform:translateX(0);}
  .mobile-bar{display:flex;}
  .site-main{margin-left:0;padding:0 18px;}
  .hero{min-height:auto;padding:36px 24px;margin-top:18px;}
  .hero h1{font-size:30px;}
  .hero-sub{font-size:15.5px;}
  .section{padding-top:56px;}
  .section--band{margin-top:56px;padding:52px 0;}
  .sec-head{margin-bottom:30px;}
  .sec-head h2{font-size:24px;}
  .stat-row{grid-template-columns:1fr 1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);padding:24px 20px;}
  .stat-item:nth-child(odd){border-right:1px solid var(--line);}
  .section-split{grid-template-columns:1fr;gap:34px;}
  .checklist{grid-template-columns:1fr;}
  .cta{margin-top:56px;padding:44px 24px;border-radius:16px;}
  .cta h2{font-size:23px;}
  .site-footer{margin:56px -18px 0;padding:48px 18px 22px;border-radius:18px 18px 0 0;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .media-figure img{aspect-ratio:16/9;}
}
@media (max-width:639px){
  body{font-size:15.5px;}
  .hero{padding:28px 20px;border-radius:16px;}
  .hero h1{font-size:25px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{width:100%;}
  .hero-badges li{font-size:12px;}
  .stat-row{grid-template-columns:1fr;}
  .stat-item:nth-child(odd){border-right:0;}
  .step{padding-left:56px;}
  .step-num{width:34px;height:34px;font-size:13px;}
  .step::before{left:16px;top:38px;}
  .step-body{padding:18px 18px;}
  .panel{padding:22px 20px;}
  .cta-form{flex-direction:column;}
  .cta-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .faq-item summary{font-size:15.5px;padding:16px 2px;}
}