/* roulang page: index */
:root{
  --brand-900:#0B3F33;
  --brand-700:#0F5A47;
  --brand-600:#146B55;
  --brand-100:#E3F0EA;
  --brand-50:#F1F7F4;
  --accent-500:#E0A03A;
  --accent-50:#FBF1DF;
  --ink-900:#0E1A16;
  --ink-600:#43524C;
  --ink-400:#7A8A83;
  --bg:#F7F5EF;
  --surface:#FFFFFF;
  --line:#E4E0D6;
  --success:#2F8F5B;
  --warn:#C8791E;
  --danger:#C0453B;
  --radius-card:14px;
  --radius-btn:10px;
  --shadow-sm:0 1px 2px rgba(14,26,22,.06);
  --shadow-md:0 6px 20px rgba(14,26,22,.08);
  --shadow-lg:0 18px 48px rgba(14,26,22,.12);
  --side-w:240px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .15s ease,background-color .15s ease,border-color .15s ease;}
button{font-family:inherit;font-size:inherit;border:none;background:none;cursor:pointer;color:inherit;}
input{font-family:inherit;}
a:focus-visible,button:focus-visible,summary:focus-visible{
  outline:3px solid rgba(15,90,71,.28);
  outline-offset:2px;
  border-radius:6px;
}
::selection{background:var(--brand-100);color:var(--brand-900);}

/* ---------- 布局骨架 ---------- */
.workspace{min-height:100vh;}
.sidebar{
  position:fixed;
  inset:0 auto 0 0;
  width:var(--side-w);
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:0 0 20px;
  z-index:90;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  height:72px;
  padding:0 18px 0 22px;
  position:relative;
  flex:0 0 auto;
}
.brand::before{
  content:"";
  position:absolute;
  left:8px;
  top:22px;
  width:5px;
  height:28px;
  border-radius:3px;
  background:var(--accent-500);
}
.brand-mark{
  font-size:20px;
  font-weight:700;
  letter-spacing:-.3px;
  color:var(--brand-900);
  line-height:1.2;
}
.brand-sub{
  font-size:12px;
  color:var(--ink-400);
  padding-top:4px;
  letter-spacing:.4px;
}
.nav{
  display:flex;
  flex-direction:column;
  gap:4px;
  padding:8px 12px 0;
  flex:1 1 auto;
  overflow-y:auto;
}
.nav-label{
  font-size:12px;
  letter-spacing:1px;
  color:var(--ink-400);
  padding:12px 12px 8px;
}
.nav-item{
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 12px;
  border-radius:var(--radius-btn);
  font-size:15px;
  color:var(--ink-600);
  position:relative;
  transition:background-color .15s ease,color .15s ease;
}
.nav-item svg{width:18px;height:18px;flex:0 0 18px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.nav-item:hover{background:var(--brand-50);color:var(--brand-700);}
.nav-item.is-active{
  background:var(--brand-100);
  color:var(--brand-700);
  font-weight:600;
}
.nav-item.is-active::before{
  content:"";
  position:absolute;
  left:-12px;
  top:10px;
  bottom:10px;
  width:3px;
  border-radius:0 3px 3px 0;
  background:var(--accent-500);
}
.sidebar-foot{
  flex:0 0 auto;
  padding:16px 16px 0;
  border-top:1px solid var(--line);
  margin-top:12px;
}
.side-note{
  font-size:12px;
  line-height:1.7;
  color:var(--ink-400);
  margin-top:8px;
  text-align:center;
}
.main{
  margin-left:var(--side-w);
  min-height:100vh;
}
.container{
  width:100%;
  max-width:1120px;
  margin:0 auto;
  padding:0 32px;
}
.topbar{
  display:none;
  position:fixed;
  top:0;left:0;right:0;
  height:60px;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  align-items:center;
  justify-content:space-between;
  padding:0 16px 0 8px;
  z-index:80;
}
.topbar .brand{height:60px;}
.topbar .brand::before{top:18px;height:24px;}
.menu-btn{
  width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  color:var(--brand-900);
  border:1px solid var(--line);
  background:var(--surface);
}
.menu-btn:hover{background:var(--brand-50);}
.menu-btn svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.9;stroke-linecap:round;}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(14,26,22,.45);
  opacity:0;
  pointer-events:none;
  transition:opacity .25s ease;
  z-index:85;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto;}

/* ---------- 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;
  line-height:1;
  transition:transform .18s ease,box-shadow .18s ease,background-color .18s ease,color .18s ease,border-color .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand-700);color:#fff;box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--brand-600);box-shadow:var(--shadow-md);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);background:var(--brand-900);}
.btn-accent{background:var(--accent-500);color:var(--ink-900);box-shadow:var(--shadow-sm);}
.btn-accent:hover{background:#EDA945;box-shadow:var(--shadow-md);transform:translateY(-1px);}
.btn-accent:active{transform:translateY(0);background:#D2902B;}
.btn-outline{background:var(--surface);color:var(--ink-900);border:1px solid var(--line);}
.btn-outline:hover{border-color:var(--brand-700);color:var(--brand-700);}
.btn-light{background:#fff;color:var(--brand-900);}
.btn-light:hover{background:var(--brand-50);transform:translateY(-1px);}
.btn-block{width:100%;padding:0 12px;}
.ghost{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand-700);
}
.ghost .arrow{transition:transform .18s ease;}
.ghost:hover{color:var(--brand-600);}
.ghost:hover .arrow{transform:translateX(3px);}
.ghost-plain{color:var(--ink-600);}
.ghost-plain:hover{color:var(--brand-700);}

/* ---------- 通用板块 ---------- */
.section{padding:92px 0;}
.section-tight{padding:64px 0;}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:40px;
}
.eyebrow{
  font-size:13px;
  letter-spacing:2px;
  color:var(--brand-700);
  font-weight:600;
  margin-bottom:10px;
  display:flex;
  align-items:center;
  gap:8px;
}
.eyebrow::before{
  content:"";
  width:18px;height:2px;
  border-radius:2px;
  background:var(--accent-500);
}
h2.section-title{
  font-size:30px;
  line-height:1.35;
  font-weight:700;
  letter-spacing:-.4px;
  color:var(--ink-900);
}
.section-desc{
  font-size:15px;
  line-height:1.8;
  color:var(--ink-600);
  margin-top:12px;
  max-width:640px;
}
.badge{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  background:var(--brand-100);
  color:var(--brand-700);
  white-space:nowrap;
}
.badge-accent{background:var(--accent-50);color:#8A5A10;}

/* ---------- Hero ---------- */
.hero{
  padding:56px 0 40px;
  background:linear-gradient(180deg,#FFFFFF 0%,#F7F5EF 78%);
}
.hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:48px;
  align-items:center;
}
.hero-copy h1{
  font-size:42px;
  line-height:1.25;
  font-weight:700;
  letter-spacing:-.5px;
  color:var(--ink-900);
}
.hero-copy h1 .hl{
  color:var(--brand-700);
  position:relative;
  white-space:nowrap;
}
.hero-copy h1 .hl::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:2px;
  height:8px;
  border-radius:4px;
  background:rgba(224,160,58,.28);
  z-index:-1;
}
.hero-sub{
  margin-top:20px;
  font-size:17px;
  line-height:1.8;
  color:var(--ink-600);
  max-width:560px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-top:30px;
}
.hero-metrics{
  display:flex;
  gap:40px;
  margin-top:36px;
  padding-top:26px;
  border-top:1px solid var(--line);
  flex-wrap:wrap;
}
.metric-num{
  font-size:22px;
  font-weight:700;
  color:var(--brand-900);
  letter-spacing:-.3px;
  line-height:1.3;
  font-variant-numeric:tabular-nums;
}
.metric-label{
  font-size:13px;
  color:var(--ink-400);
  margin-top:2px;
}
.hero-visual{
  position:relative;
  border-radius:20px;
  overflow:hidden;
  min-height:400px;
  box-shadow:var(--shadow-lg);
  background:var(--brand-900);
  display:flex;
  align-items:flex-end;
  padding:24px;
}
.hero-visual > img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.hero-visual::after{
  content:"";
  position:absolute;
  inset:0;
  background:rgba(11,63,51,.62);
}
.hero-card{
  position:relative;
  z-index:2;
  background:#fff;
  border-radius:var(--radius-card);
  padding:20px 22px;
  width:100%;
  box-shadow:var(--shadow-md);
}
.hero-card-title{
  font-size:15px;
  font-weight:700;
  color:var(--ink-900);
  display:flex;
  align-items:center;
  gap:8px;
}
.hero-card-title span{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:22px;height:22px;
  border-radius:999px;
  background:var(--accent-500);
  color:var(--ink-900);
  font-size:12px;
  font-weight:700;
}
.hero-card ol{
  margin-top:14px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.hero-card li{
  display:flex;
  gap:10px;
  font-size:14px;
  line-height:1.6;
  color:var(--ink-600);
}
.hero-card li b{
  color:var(--ink-900);
  font-weight:600;
  flex:0 0 auto;
  font-variant-numeric:tabular-nums;
}

/* ---------- 参数带 ---------- */
.spec-band{
  background:var(--ink-900);
  color:#E8EFEB;
  padding:40px 0;
}
.spec-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:1px;
  background:rgba(255,255,255,.12);
  border-radius:var(--radius-card);
  overflow:hidden;
}
.spec-item{
  background:var(--ink-900);
  padding:20px 22px;
}
.spec-item strong{
  display:block;
  font-size:20px;
  font-weight:700;
  color:#fff;
  letter-spacing:-.2px;
  font-variant-numeric:tabular-nums;
}
.spec-item span{
  display:block;
  font-size:13px;
  color:#9FB3AA;
  margin-top:4px;
}

/* ---------- 三步上手 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:0;
  margin-top:8px;
}
.step{
  position:relative;
  padding:0 32px 0 0;
}
.step:last-child{padding-right:0;}
.step::after{
  content:"";
  position:absolute;
  top:26px;
  right:8px;
  width:calc(100% - 72px);
  border-top:1px dashed var(--line);
  transform:translateX(32px);
}
.step:last-child::after{display:none;}
.step-num{
  width:52px;height:52px;
  border-radius:999px;
  border:1.5px solid var(--accent-500);
  color:var(--brand-900);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;
  font-weight:700;
  background:var(--surface);
  position:relative;
  z-index:2;
  font-variant-numeric:tabular-nums;
}
.step h3{
  font-size:19px;
  font-weight:600;
  margin-top:20px;
  color:var(--ink-900);
}
.step p{
  font-size:14px;
  line-height:1.8;
  color:var(--ink-600);
  margin-top:8px;
  max-width:260px;
}

/* ---------- 案例证明 ---------- */
.case-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:32px;
  align-items:start;
}
.case-main{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .18s ease,transform .18s ease;
}
.case-main:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.case-main img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.case-main-body{padding:24px 26px 26px;}
.case-main-body h3{
  font-size:21px;
  font-weight:600;
  line-height:1.5;
  margin-top:14px;
  color:var(--ink-900);
}
.case-main-body p{
  font-size:14px;
  line-height:1.85;
  color:var(--ink-600);
  margin-top:10px;
}
.case-tags{display:flex;gap:8px;flex-wrap:wrap;}
.case-voices{display:flex;flex-direction:column;gap:24px;}
.voice{
  padding-left:16px;
  border-left:3px solid var(--accent-500);
}
.voice p{
  font-size:17px;
  line-height:1.75;
  color:var(--ink-900);
}
.voice cite{
  display:block;
  font-style:normal;
  font-size:13px;
  color:var(--ink-400);
  margin-top:10px;
}

/* ---------- 最新信息 ---------- */
.news-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.news-card{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .18s ease,transform .18s ease,border-color .18s ease;
}
.news-card:hover{
  box-shadow:var(--shadow-md);
  transform:translateY(-2px);
  border-color:#CFE2D8;
}
.news-thumb{
  aspect-ratio:16/10;
  overflow:hidden;
  background:var(--brand-50);
}
.news-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .35s ease;
}
.news-card:hover .news-thumb img{transform:scale(1.04);}
.news-body{
  padding:18px 20px 20px;
  display:flex;
  flex-direction:column;
  gap:10px;
  flex:1 1 auto;
}
.news-body h3{
  font-size:17px;
  font-weight:600;
  line-height:1.55;
  color:var(--ink-900);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-body p{
  font-size:14px;
  line-height:1.75;
  color:var(--ink-600);
  display:-webkit-box;
  -webkit-line-clamp:3;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-meta{
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--ink-400);
}
.news-meta .arrow{color:var(--brand-700);transition:transform .18s ease;}
.news-card:hover .news-meta .arrow{transform:translateX(3px);}
.empty-state{
  border:1px dashed var(--line);
  border-radius:var(--radius-card);
  background:var(--surface);
  padding:56px 24px;
  text-align:center;
}
.empty-state p{
  font-size:15px;
  color:var(--ink-600);
  margin-bottom:14px;
}

/* ---------- FAQ ---------- */
.faq-layout{
  display:grid;
  grid-template-columns:4fr 8fr;
  gap:48px;
  align-items:start;
}
.faq-side h2{
  font-size:30px;
  line-height:1.35;
  font-weight:700;
  letter-spacing:-.4px;
}
.faq-side p{
  font-size:15px;
  line-height:1.85;
  color:var(--ink-600);
  margin-top:14px;
}
.faq-side .ghost{margin-top:22px;}
.faq-list{
  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:64px;
  padding:18px 0;
  font-size:17px;
  font-weight:600;
  color:var(--ink-900);
  transition:color .15s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand-700);}
.faq-item summary::after{
  content:"+";
  flex:0 0 24px;
  width:24px;height:24px;
  border-radius:999px;
  background:var(--brand-50);
  color:var(--brand-700);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;
  font-weight:600;
  line-height:1;
  transition:transform .2s ease,background-color .2s ease;
}
.faq-item[open] summary::after{
  content:"−";
  background:var(--brand-100);
  transform:rotate(180deg);
}
.faq-answer{
  padding:0 0 20px 16px;
  border-left:3px solid var(--accent-500);
  margin:0 0 20px 2px;
}
.faq-answer p{
  font-size:15px;
  line-height:1.85;
  color:var(--ink-600);
}

/* ---------- CTA 带 ---------- */
.cta-band{
  background:var(--ink-900);
  border-radius:20px;
  padding:56px 56px;
  position:relative;
  overflow:hidden;
  display:grid;
  grid-template-columns:8fr 4fr;
  gap:32px;
  align-items:center;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  opacity:.1;
}
.cta-band > *{position:relative;z-index:2;}
.cta-band h2{
  font-size:30px;
  line-height:1.35;
  font-weight:700;
  color:#fff;
  letter-spacing:-.4px;
}
.cta-band p{
  font-size:15px;
  line-height:1.85;
  color:#B9C8C1;
  margin-top:12px;
  max-width:520px;
}
.cta-actions{
  display:flex;
  flex-direction:column;
  gap:14px;
  align-items:flex-start;
}
.cta-actions .ghost{color:#E4EDE8;}
.cta-actions .ghost:hover{color:var(--accent-500);}

/* ---------- 页脚 ---------- */
.footer{
  background:var(--ink-900);
  color:#C9D3CE;
  margin-top:92px;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:2.2fr 1fr 1fr 1.4fr;
  gap:40px;
}
.footer .brand-mark{color:#fff;}
.footer .brand-sub{color:#8FA39A;}
.footer .brand::before{background:var(--accent-500);}
.footer-about{
  font-size:14px;
  line-height:1.85;
  color:#9FB3AA;
  margin-top:16px;
  max-width:300px;
}
.footer h4{
  font-size:15px;
  font-weight:700;
  color:#F1F5F2;
  margin-bottom:16px;
}
.footer ul{display:flex;flex-direction:column;gap:10px;}
.footer li a{
  font-size:14px;
  color:#9FB3AA;
}
.footer li a:hover{color:var(--accent-500);}
.footer-contact p{
  font-size:14px;
  line-height:1.9;
  color:#9FB3AA;
}
.footer-contact strong{
  color:#E4EDE8;
  font-weight:600;
  display:block;
  margin-bottom:2px;
}
.footer-bottom{
  margin-top:48px;
  border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0 28px;
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:#7E918A;
}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  :root{--side-w:240px;}
}
@media (max-width:1279px){
  :root{--side-w:220px;}
  .container{padding:0 28px;}
  .hero-copy h1{font-size:36px;}
}
@media (max-width:1023px){
  .sidebar{
    transform:translateX(-100%);
    transition:transform .28s ease;
    width:280px;
    box-shadow:none;
  }
  .sidebar.is-open{transform:translateX(0);box-shadow:var(--shadow-lg);}
  .main{margin-left:0;padding-top:60px;}
  .topbar{display:flex;}
  .hero{padding:40px 0 32px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-copy h1{font-size:32px;}
  .hero-visual{min-height:320px;}
  .spec-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:1fr;gap:28px;}
  .step{padding:0 0 0 0;}
  .step::after{display:none;}
  .step{display:grid;grid-template-columns:52px 1fr;gap:0 20px;align-items:start;}
  .step h3{margin-top:6px;grid-column:2;}
  .step p{margin-top:2px;grid-column:2;max-width:none;}
  .case-grid{grid-template-columns:1fr;}
  .news-grid{grid-template-columns:repeat(2,1fr);}
  .faq-layout{grid-template-columns:1fr;gap:28px;}
  .cta-band{grid-template-columns:1fr;padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .hero-copy h1{font-size:28px;}
  .hero-sub{font-size:16px;}
  .hero-actions .btn{width:100%;}
  .hero-metrics{gap:24px;}
  .metric{flex:1 1 40%;}
  .spec-grid{grid-template-columns:1fr;}
  h2.section-title,.faq-side h2,.cta-band h2{font-size:24px;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .news-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer{padding-top:48px;margin-top:64px;}
  .cta-band{border-radius:16px;padding:32px 24px;}
  .cta-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;gap:8px;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .hero-copy h1{font-size:26px;}
  .case-main-body{padding:20px;}
  .faq-item summary{font-size:16px;}
}

/* roulang page: category1 */
:root{
  --brand-900:#0B3F33;
  --brand-700:#0F5A47;
  --brand-600:#146B55;
  --brand-100:#E3F0EA;
  --brand-50:#F1F7F4;
  --accent-500:#E0A03A;
  --accent-50:#FBF1DF;
  --ink-900:#0E1A16;
  --ink-600:#43524C;
  --ink-400:#7A8A83;
  --bg:#F7F5EF;
  --surface:#FFFFFF;
  --line:#E4E0D6;
  --success:#2F8F5B;
  --warn:#C8791E;
  --danger:#C0453B;
  --r-card:14px;
  --r-img:14px;
  --r-btn:10px;
  --r-panel:20px;
  --sh-sm:0 1px 2px rgba(14,26,22,.06);
  --sh-md:0 6px 20px rgba(14,26,22,.08);
  --sh-lg:0 18px 48px rgba(14,26,22,.12);
  --container:1040px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,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:1.85;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
@media (min-width:1024px){
  body{padding-left:240px}
}
@media (min-width:1280px){
  body{padding-left:220px}
}
@media (min-width:1024px) and (max-width:1279px){
  body{padding-left:240px}
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;cursor:pointer;border:0;background:none}
svg{display:block}
:focus-visible{outline:3px solid rgba(15,90,71,.28);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 28px}
@media (max-width:519px){.container{padding:0 16px}}

/* ============ 品牌字标 ============ */
.brand{
  display:inline-flex;
  align-items:baseline;
  gap:7px;
  position:relative;
  padding-left:14px;
  font-size:19px;
  font-weight:700;
  letter-spacing:-.3px;
  color:var(--ink-900);
}
.brand::before{
  content:"";
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:4px;
  height:22px;
  border-radius:2px;
  background:var(--accent-500);
}
.brand-sub{font-size:.6em;font-weight:600;letter-spacing:.6px;color:var(--brand-700)}

/* ============ 移动顶栏 ============ */
.topbar{
  position:sticky;
  top:0;
  z-index:70;
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:60px;
  padding:0 16px;
  background:#fff;
  border-bottom:1px solid var(--line);
  box-shadow:var(--sh-sm);
}
.menu-btn{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  color:var(--ink-900);
  transition:background .15s ease;
}
.menu-btn svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.9;stroke-linecap:round}
.menu-btn:hover{background:var(--brand-50)}
@media (min-width:1024px){.topbar{display:none}}

/* ============ 左侧导航 ============ */
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:280px;
  z-index:90;
  display:flex;
  flex-direction:column;
  background:#fff;
  border-right:1px solid var(--line);
  padding:0 0 22px;
  transform:translateX(-100%);
  transition:transform .24s ease;
  overflow-y:auto;
}
.sidebar.is-open{transform:translateX(0)}
.sidebar-brand{
  display:flex;
  align-items:center;
  height:72px;
  padding:0 18px;
  border-bottom:1px solid var(--line);
}
.side-nav{padding:18px 14px 0;display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 12px;
  border-radius:10px;
  font-size:15px;
  color:var(--ink-600);
  transition:background .15s ease,color .15s ease;
}
.nav-item svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto}
.nav-item:hover{background:var(--brand-50);color:var(--brand-700)}
.nav-item.active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.nav-item.active::before{
  content:"";
  position:absolute;
  left:0;top:9px;bottom:9px;
  width:3px;border-radius:3px;
  background:var(--accent-500);
}
.side-divider{height:1px;background:var(--line);margin:18px 14px}
.side-foot{padding:0 18px;margin-top:auto}
.side-contact{font-size:13px;line-height:1.7;color:var(--ink-400);margin-top:10px}
.side-contact strong{display:block;color:var(--ink-600);font-weight:600}
.btn-block{width:100%}
.drawer-mask{
  position:fixed;
  inset:0;
  background:rgba(14,26,22,.45);
  opacity:0;
  pointer-events:none;
  transition:opacity .24s ease;
  z-index:85;
}
.drawer-mask.is-open{opacity:1;pointer-events:auto}
@media (min-width:1024px){
  .sidebar{width:240px;transform:none}
  .drawer-mask{display:none}
}
@media (min-width:1280px) and (max-width:1439px){
  .sidebar{width:220px}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--brand-700);color:#fff}
.btn-primary:hover{background:var(--brand-600);box-shadow:var(--sh-md);transform:translateY(-1px)}
.btn-primary:active{transform:none;background:var(--brand-900)}
.btn-outline{background:#fff;border-color:var(--line);color:var(--ink-900)}
.btn-outline:hover{border-color:var(--brand-700);color:var(--brand-700)}
.btn-accent{background:var(--accent-500);color:var(--ink-900)}
.btn-accent:hover{background:#D5942C;box-shadow:var(--sh-md);transform:translateY(-1px)}
.btn-accent:active{transform:none;background:#C8862A}
.btn-ghost{
  display:inline-flex;align-items:center;gap:6px;
  height:auto;padding:0;background:none;
  font-size:15px;font-weight:600;color:var(--brand-700);
}
.btn-ghost .arrow{transition:transform .18s ease}
.btn-ghost:hover .arrow{transform:translateX(3px)}
.btn[disabled],.btn.is-disabled{opacity:.45;pointer-events:none}

/* ============ 标签 / 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 10px;
  border-radius:999px;
  font-size:13px;font-weight:600;
  background:var(--brand-100);color:var(--brand-700);
}
.badge-accent{background:var(--accent-50);color:#8A5A12}
.badge-line{background:#fff;border:1px solid var(--line);color:var(--ink-600);font-weight:500}

/* ============ 面包屑 ============ */
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:6px;
  font-size:13px;color:var(--ink-400);
  padding:20px 0 0;
}
.crumb a{color:var(--ink-400);transition:color .15s ease}
.crumb a:hover{color:var(--brand-700)}
.crumb .sep{color:#C6C0B2}
.crumb .current{color:var(--brand-700);font-weight:600}

/* ============ 页头横幅 ============ */
.page-banner{
  position:relative;
  margin-top:16px;
  min-height:236px;
  border-radius:var(--r-panel);
  overflow:hidden;
  display:flex;
  align-items:flex-end;
  padding:36px 40px 34px;
  color:#fff;
  background-image:linear-gradient(100deg,rgba(11,63,51,.86) 0%,rgba(11,63,51,.68) 52%,rgba(11,63,51,.52) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  box-shadow:var(--sh-md);
}
.page-banner .banner-inner{max-width:720px;position:relative;z-index:2}
.page-banner .kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:1px;
  color:#F4E3C2;
  margin-bottom:14px;
}
.page-banner .kicker::before{content:"";width:22px;height:2px;background:var(--accent-500);border-radius:2px}
.page-banner h1{
  font-size:42px;
  line-height:1.25;
  letter-spacing:-.5px;
  font-weight:700;
  margin-bottom:14px;
}
.page-banner p{font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);max-width:640px}

/* ============ 分类切换 ============ */
.chip-row{
  display:flex;
  gap:10px;
  overflow-x:auto;
  padding:22px 0 4px;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.chip-row::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line);
  background:#fff;
  font-size:14px;
  color:var(--ink-600);
  transition:background .16s ease,color .16s ease,border-color .16s ease,box-shadow .16s ease;
}
.chip:hover{border-color:var(--brand-700);color:var(--brand-700);box-shadow:var(--sh-sm)}
.chip.is-active{background:var(--brand-700);border-color:var(--brand-700);color:#fff;font-weight:600}
.chip.is-active:hover{color:#fff}

/* ============ 通用板块 ============ */
.section{padding:64px 0 0}
.section-head{max-width:720px;margin-bottom:28px}
.section-head h2{
  font-size:30px;
  line-height:1.35;
  font-weight:700;
  letter-spacing:-.3px;
  margin-bottom:10px;
}
.section-head p{font-size:16px;color:var(--ink-600)}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1px;
  color:var(--brand-700);
  margin-bottom:12px;
}
.eyebrow::before{content:"";width:18px;height:2px;background:var(--accent-500);border-radius:2px}

/* ============ 左图右文 ============ */
.split{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:40px;
  align-items:center;
}
.split-figure{position:relative}
.split-figure img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--r-img);
  box-shadow:var(--sh-md);
}
.split-figure .figure-tag{
  position:absolute;
  left:16px;bottom:16px;
  background:#fff;
  border-radius:999px;
  padding:6px 14px;
  font-size:13px;
  font-weight:600;
  color:var(--brand-700);
  box-shadow:var(--sh-sm);
}
.split-body h2{font-size:30px;line-height:1.35;font-weight:700;margin-bottom:14px}
.split-body p{font-size:16px;color:var(--ink-600);margin-bottom:16px}
.check-list{display:flex;flex-direction:column;gap:12px;margin-top:6px}
.check-list li{
  position:relative;
  padding-left:22px;
  font-size:15px;
  color:var(--ink-600);
  line-height:1.7;
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:8px;height:8px;
  border-radius:50%;
  background:var(--accent-500);
}
.mini-metrics{
  display:flex;
  gap:32px;
  margin-top:26px;
  padding-top:22px;
  border-top:1px solid var(--line);
  flex-wrap:wrap;
}
.mini-metrics .num{
  display:block;
  font-size:20px;
  font-weight:700;
  color:var(--brand-700);
  line-height:1.3;
  letter-spacing:-.2px;
}
.mini-metrics .cap{font-size:13px;color:var(--ink-400)}

/* ============ 三步条 ============ */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:32px;
  margin-top:8px;
}
.steps li{position:relative;padding-top:4px}
.step-no{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:54px;height:54px;
  border-radius:50%;
  border:1.5px solid var(--accent-500);
  color:var(--brand-900);
  font-size:19px;
  font-weight:700;
  background:#fff;
  margin-bottom:16px;
  letter-spacing:.5px;
}
.steps li:not(:last-child)::after{
  content:"";
  position:absolute;
  top:31px;
  left:66px;
  right:-28px;
  border-top:1px dashed #D6D0C2;
}
.step-title{font-size:21px;line-height:1.5;font-weight:600;margin-bottom:8px}
.step-desc{font-size:15px;color:var(--ink-600);line-height:1.75}

/* ============ 提示语对照 ============ */
.notice-panel{
  background:var(--surface);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-sm);
  padding:8px 26px;
}
.notice-list li{
  display:grid;
  grid-template-columns:220px 1fr;
  gap:20px;
  padding:20px 0;
  border-bottom:1px solid var(--line);
  align-items:start;
}
.notice-list li:last-child{border-bottom:0}
.notice-list .notice-key{
  font-size:15px;
  font-weight:600;
  color:var(--ink-900);
  display:flex;
  align-items:center;
  gap:8px;
}
.notice-list .dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--danger);
  flex:0 0 auto;
}
.notice-list .dot.warn{background:var(--warn)}
.notice-list .dot.ok{background:var(--success)}
.notice-list .notice-val{font-size:15px;color:var(--ink-600);line-height:1.8}

/* ============ 深色 CTA ============ */
.cta-band{
  margin-top:72px;
  border-radius:var(--r-panel);
  background:var(--ink-900);
  color:#fff;
  padding:52px 48px;
  display:grid;
  grid-template-columns:1fr auto;
  gap:36px;
  align-items:center;
  position:relative;
  overflow:hidden;
}
.cta-band::after{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(135deg,rgba(15,90,71,.42),rgba(11,63,51,.15)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:.14;
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:30px;line-height:1.35;font-weight:700;margin-bottom:10px;letter-spacing:-.3px}
.cta-band p{font-size:15px;color:#C9D3CE;max-width:560px;line-height:1.8}
.cta-actions{display:flex;align-items:center;gap:22px;flex-wrap:wrap}
.cta-link{font-size:15px;font-weight:600;color:#F4E3C2;display:inline-flex;align-items:center;gap:6px}
.cta-link:hover{color:#fff}
.cta-link .arrow{transition:transform .18s ease}
.cta-link:hover .arrow{transform:translateX(3px)}

/* ============ 页脚 ============ */
.footer{
  background:#0E1A16;
  color:#C9D3CE;
  margin-top:84px;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.35fr .8fr .9fr 1.1fr;
  gap:40px;
  padding-bottom:44px;
}
.footer .brand{color:#fff;font-size:19px}
.footer .brand-sub{color:var(--accent-500)}
.footer-about{
  margin-top:16px;
  font-size:14px;
  line-height:1.9;
  color:#9FADA7;
  max-width:320px;
}
.footer h4{
  font-size:15px;
  font-weight:700;
  color:#F2F5F3;
  margin-bottom:16px;
  letter-spacing:.2px;
}
.footer ul{display:flex;flex-direction:column;gap:11px}
.footer ul a{
  font-size:14px;
  color:#9FADA7;
  transition:color .15s ease;
}
.footer ul a:hover{color:var(--accent-500)}
.footer-contact p{font-size:14px;color:#9FADA7;margin-bottom:10px;line-height:1.75}
.footer-contact strong{color:#F2F5F3;font-weight:600;margin-right:8px}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  padding:20px 0 28px;
  border-top:1px solid rgba(255,255,255,.12);
  font-size:13px;
  color:#7E8D87;
}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:1023px){
  .page-banner{padding:30px 26px 28px;min-height:210px}
  .page-banner h1{font-size:32px}
  .split{grid-template-columns:1fr;gap:28px}
  .steps{grid-template-columns:1fr;gap:0}
  .steps li{padding:0 0 26px 30px;position:relative}
  .steps li::before{
    content:"";
    position:absolute;
    left:9px;top:14px;bottom:-4px;
    width:2px;
    background:var(--brand-100);
  }
  .steps li:last-child::before{display:none}
  .steps li:not(:last-child)::after{display:none}
  .step-no{
    position:absolute;
    left:0;top:0;
    width:20px;height:20px;
    font-size:0;
    border:2px solid var(--brand-700);
    background:#fff;
    margin:0;
  }
  .steps li{padding-left:38px}
  .steps li::before{left:9px;top:22px;bottom:0}
  .step-title{font-size:19px;margin-top:0}
  .cta-band{grid-template-columns:1fr;padding:40px 26px;gap:24px}
  .notice-list li{grid-template-columns:1fr;gap:6px;padding:18px 0}
  .notice-panel{padding:4px 20px}
}
@media (max-width:767px){
  .section{padding-top:52px}
  .section-head h2,.split-body h2,.cta-band h2{font-size:24px}
  .page-banner h1{font-size:28px}
  .page-banner{border-radius:16px;margin-top:14px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .mini-metrics{gap:22px}
  .footer{margin-top:60px;padding-top:48px}
}
@media (max-width:519px){
  .btn{width:100%}
  .cta-actions{width:100%;gap:14px}
  .btn-ghost,.cta-link{width:auto}
  .chip{height:36px;padding:0 15px;font-size:13px}
  .mini-metrics .num{font-size:19px}
}

/* roulang page: article */
:root{
  --brand-900:#0B3F33;
  --brand-700:#0F5A47;
  --brand-600:#146B55;
  --brand-100:#E3F0EA;
  --brand-50:#F1F7F4;
  --accent-500:#E0A03A;
  --accent-50:#FBF1DF;
  --ink-900:#0E1A16;
  --ink-600:#43524C;
  --ink-400:#7A8A83;
  --bg:#F7F5EF;
  --surface:#FFFFFF;
  --line:#E4E0D6;
  --success:#2F8F5B;
  --warn:#C8791E;
  --danger:#C0453B;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --sh-sm:0 1px 2px rgba(14,26,22,.06);
  --sh-md:0 6px 20px rgba(14,26,22,.08);
  --sh-lg:0 18px 48px rgba(14,26,22,.12);
  --sidebar-w:240px;
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",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:1.8;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--brand-700);text-decoration:none;transition:color .15s ease,border-color .15s ease}
a:hover{color:var(--accent-500)}
button{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0}
:focus-visible{outline:3px solid rgba(15,90,71,.28);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 24px}

/* ---------- 品牌 ---------- */
.brand{display:inline-flex;align-items:baseline;gap:8px;text-decoration:none}
.brand-mark{font-size:19px;font-weight:700;letter-spacing:-.4px;color:var(--ink-900)}
.brand-sub{font-size:11.4px;font-weight:500;color:var(--ink-400);letter-spacing:.4px}
.brand:hover .brand-mark{color:var(--brand-700)}
.footer .brand-mark{color:#FFFFFF}
.footer .brand-sub{color:#8FA199}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;text-decoration:none;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn-primary{background:var(--brand-700);color:#FFFFFF}
.btn-primary:hover{background:var(--brand-600);color:#FFFFFF;box-shadow:var(--sh-md);transform:translateY(-1px)}
.btn-primary:active{background:var(--brand-900);transform:translateY(0)}
.btn-accent{background:var(--accent-500);color:var(--ink-900)}
.btn-accent:hover{background:#EDAE4B;color:var(--ink-900);box-shadow:var(--sh-md);transform:translateY(-1px)}
.btn-accent:active{transform:translateY(0);background:#CE8F2E}
.btn-outline{background:var(--surface);border-color:var(--line);color:var(--ink-900)}
.btn-outline:hover{border-color:var(--brand-700);color:var(--brand-700);background:var(--brand-50)}
.btn-ghost{background:transparent;color:var(--brand-700);padding:0;height:auto;font-weight:600}
.btn-ghost .arw{transition:transform .18s ease}
.btn-ghost:hover{color:var(--brand-600)}
.btn-ghost:hover .arw{transform:translateX(3px)}
.btn-block{display:flex;width:100%}
.btn[disabled]{opacity:.45;pointer-events:none}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:var(--r-pill);background:var(--brand-100);color:var(--brand-700);
  font-size:13px;font-weight:600;letter-spacing:.2px;
}

/* ---------- 侧栏 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;padding:0 16px 22px;
  z-index:60;overflow-y:auto;
}
.side-head{
  position:relative;height:72px;display:flex;align-items:center;justify-content:space-between;
  padding-left:14px;flex:0 0 auto;
}
.side-head::before{
  content:"";position:absolute;left:0;top:22px;width:6px;height:28px;
  border-radius:3px;background:var(--accent-500);
}
.drawer-close{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-btn);
  font-size:16px;color:var(--ink-600);cursor:pointer;
}
.drawer-close:hover{border-color:var(--brand-700);color:var(--brand-700)}
.nav-list{list-style:none;display:flex;flex-direction:column;gap:4px;margin:6px 0 0}
.nav-link{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:var(--r-btn);
  font-size:15px;font-weight:500;color:var(--ink-600);
  transition:background-color .15s ease,color .15s ease;
}
.nav-link svg{width:18px;height:18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;flex:0 0 auto;opacity:.85}
.nav-link:hover{background:var(--brand-50);color:var(--brand-700)}
.nav-link.is-active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.nav-link.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:0 3px 3px 0;background:var(--accent-500);
}
.side-sep{height:1px;background:var(--line);margin:18px 0;flex:0 0 auto}
.side-bottom{margin-top:auto;display:flex;flex-direction:column;gap:14px}
.side-contact{font-size:12.5px;line-height:1.7;color:var(--ink-400)}
.side-contact strong{display:block;color:var(--ink-600);font-weight:600;font-size:12.5px}

/* ---------- 顶部栏（移动端） ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;
  background:var(--surface);border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;padding:0 16px;z-index:50;
}
.menu-btn{
  width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--ink-900);cursor:pointer;transition:border-color .15s ease,color .15s ease;
}
.menu-btn:hover{border-color:var(--brand-700);color:var(--brand-700)}
.menu-btn svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round}
.backdrop{position:fixed;inset:0;background:rgba(14,26,22,.45);z-index:55}
.backdrop[hidden]{display:none}

/* ---------- 主体 ---------- */
.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.article-wrap{padding:32px 0 8px;flex:1 1 auto}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--ink-400);margin-bottom:22px;
}
.breadcrumb a{color:var(--ink-400)}
.breadcrumb a:hover{color:var(--brand-700)}
.crumb-now{
  color:var(--brand-700);font-weight:600;max-width:340px;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- 文章头部 ---------- */
.article-head{padding-bottom:28px;border-bottom:1px solid var(--line)}
.article-head h1{
  font-size:clamp(28px,3.6vw,38px);line-height:1.3;font-weight:700;
  letter-spacing:-.5px;margin:16px 0 0;max-width:900px;
}
.meta-row{
  display:flex;align-items:center;flex-wrap:wrap;gap:10px;
  margin-top:18px;font-size:13px;color:var(--ink-400);line-height:1.6;
}
.dot{width:4px;height:4px;border-radius:50%;background:var(--ink-400);opacity:.6;display:inline-block}

/* ---------- 文章布局 ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,760px) 240px;
  gap:56px;align-items:start;padding:36px 0 8px;
}
.article-side{position:sticky;top:32px;display:flex;flex-direction:column;gap:16px}
.side-card{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:20px;box-shadow:var(--sh-sm);
}
.side-card h3{font-size:15px;font-weight:600;margin-bottom:10px;color:var(--ink-900)}
.side-card p{font-size:13.5px;line-height:1.8;color:var(--ink-600)}
.side-links{list-style:none;display:flex;flex-direction:column}
.side-links li{border-bottom:1px solid var(--line)}
.side-links li:last-child{border-bottom:0}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:8px;
  padding:10px 0;font-size:14px;color:var(--ink-600);
}
.side-links a:hover{color:var(--brand-700)}
.side-links a span{color:var(--ink-400);transition:transform .18s ease}
.side-links a:hover span{transform:translateX(3px);color:var(--accent-500)}

/* ---------- 正文排版 ---------- */
.article-body{
  font-size:17px;line-height:1.95;color:#1D2A25;
  word-break:break-word;
}
.article-body > :first-child{margin-top:0}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  font-size:24px;line-height:1.45;font-weight:700;color:var(--ink-900);
  margin:48px 0 14px;letter-spacing:-.2px;
}
.article-body h3{font-size:19px;line-height:1.55;font-weight:600;margin:30px 0 10px;color:var(--ink-900)}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 8px}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.4em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:0 0 .45em}
.article-body ul li::marker{color:var(--accent-500)}
.article-body ol li::marker{color:var(--brand-700);font-weight:600}
.article-body blockquote{
  margin:26px 0;padding:20px 22px;background:var(--brand-100);
  border-left:3px solid var(--brand-700);border-radius:0 10px 10px 0;
  color:var(--ink-900);font-size:16.5px;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:26px 0;border:1px solid var(--line)}
.article-body figure{margin:26px 0}
.article-body figcaption{font-size:13px;color:var(--ink-400);text-align:center;margin-top:10px}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;line-height:1.7;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.article-body th{
  background:var(--brand-100);color:var(--brand-900);font-weight:600;
  text-align:left;padding:12px 14px;border:1px solid var(--line);
}
.article-body td{padding:12px 14px;border:1px solid var(--line);color:var(--ink-600)}
.article-body tbody tr:nth-child(even){background:var(--bg)}
.article-body a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--accent-500)}
.article-body code{
  background:var(--brand-50);color:var(--brand-900);
  padding:2px 6px;border-radius:6px;font-size:.92em;
}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}
.article-body strong{font-weight:600;color:var(--ink-900)}

/* ---------- 空态 ---------- */
.empty-state{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);
  padding:48px 32px;text-align:center;box-shadow:var(--sh-sm);
}
.empty-state h2{font-size:22px;margin-bottom:10px}
.empty-state p{color:var(--ink-600);font-size:15px;margin-bottom:22px}

/* ---------- 文末入口 ---------- */
.article-foot{
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;
  margin-top:40px;padding-top:24px;border-top:1px solid var(--line);
}
.related{margin-top:44px;padding-top:30px;border-top:1px solid var(--line)}
.section-label{
  font-size:13px;font-weight:600;letter-spacing:1.2px;color:var(--accent-500);
  text-transform:uppercase;margin-bottom:10px;
}
.related h2{font-size:22px;font-weight:700;margin-bottom:6px}
.related > p{font-size:14.5px;color:var(--ink-600);margin-bottom:18px}
.related-list{list-style:none}
.related-list li{border-bottom:1px solid var(--line)}
.related-list li:first-child{border-top:1px solid var(--line)}
.related-list a{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:16px 4px;color:var(--ink-900);font-size:16px;font-weight:500;
  transition:color .15s ease,padding-left .15s ease;
}
.related-list a:hover{color:var(--brand-700);padding-left:10px}
.related-list .meta-small{font-size:13px;font-weight:400;color:var(--ink-400);flex:0 0 auto}

/* ---------- CTA 带 ---------- */
.cta-wrap{padding:64px 0}
.cta-band{
  position:relative;overflow:hidden;border-radius:20px;background:var(--ink-900);
  padding:52px;display:grid;grid-template-columns:minmax(0,1fr) auto;
  gap:32px;align-items:center;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.14;
}
.cta-band::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:6px;
  background:var(--accent-500);
}
.cta-inner{position:relative;z-index:1}
.cta-band h2{font-size:clamp(24px,2.6vw,30px);line-height:1.35;color:#FFFFFF;font-weight:700;margin-bottom:12px}
.cta-band p{color:#C9D3CE;font-size:15px;line-height:1.8;max-width:560px}
.cta-actions{position:relative;z-index:1;display:flex;flex-direction:column;gap:12px;align-items:flex-start}
.cta-actions .btn-ghost{color:#F1F5F2}
.cta-actions .btn-ghost:hover{color:var(--accent-500)}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink-900);color:#C9D3CE;padding:56px 0 0;margin-top:auto}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:32px;padding-bottom:40px;
}
.footer-grid > div{min-width:0}
.footer h4{font-size:15px;font-weight:600;color:#F1F5F2;margin-bottom:14px}
.footer ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer a{font-size:14px;color:#C9D3CE}
.footer a:hover{color:var(--accent-500)}
.footer-about{font-size:14px;line-height:1.85;color:#9FB0A8;margin-top:14px;max-width:330px}
.footer-contact p{font-size:14px;line-height:1.8;margin-bottom:10px;color:#C9D3CE}
.footer-contact strong{display:block;font-size:12.5px;font-weight:600;color:#8FA199;letter-spacing:.4px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);padding:20px 0;
  display:flex;justify-content:space-between;gap:10px;flex-wrap:wrap;
  font-size:13px;color:#8FA199;
}

/* ---------- 断点 ---------- */
@media (max-width:1439px){
  .container{max-width:1040px}
}
@media (max-width:1279px) and (min-width:1024px){
  :root{--sidebar-w:220px}
  .article-layout{grid-template-columns:minmax(0,1fr) 220px;gap:40px}
}
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0}
  .article-side{display:none}
  .article-body{max-width:760px}
}
@media (max-width:1023px){
  .sidebar{transform:translateX(-100%);transition:transform .24s ease;width:280px;box-shadow:var(--sh-lg)}
  .sidebar.is-open{transform:translateX(0)}
  .drawer-close{display:inline-flex}
  .nav-link{height:48px}
  .topbar{display:flex}
  .main{margin-left:0;padding-top:60px}
  .article-wrap{padding-top:24px}
  .cta-band{padding:40px 32px;grid-template-columns:minmax(0,1fr)}
  .cta-actions{flex-direction:row;flex-wrap:wrap;align-items:center}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .article-head h1{font-size:26px;line-height:1.38}
  .article-body{font-size:16px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:36px}
  .article-body h3{font-size:18px;margin-top:26px}
  .article-body table{display:block;overflow-x:auto;white-space:nowrap}
  .cta-wrap{padding:48px 0}
  .footer{padding-top:44px}
  .footer-bottom{flex-direction:column;gap:6px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .article-head h1{font-size:23px}
  .btn{width:100%}
  .cta-actions{flex-direction:column;align-items:stretch;width:100%}
  .cta-actions .btn-ghost{width:auto}
  .article-foot .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .crumb-now{max-width:180px}
}

/* roulang page: category2 */
:root{
  --brand-900:#0B3F33;
  --brand-700:#0F5A47;
  --brand-600:#146B55;
  --brand-100:#E3F0EA;
  --brand-50:#F1F7F4;
  --accent-500:#E0A03A;
  --accent-50:#FBF1DF;
  --ink-900:#0E1A16;
  --ink-600:#43524C;
  --ink-400:#7A8A83;
  --bg:#F7F5EF;
  --surface:#FFFFFF;
  --line:#E4E0D6;
  --success:#2F8F5B;
  --warn:#C8791E;
  --danger:#C0453B;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-hero:20px;
  --shadow-sm:0 1px 2px rgba(14,26,22,.06);
  --shadow-md:0 6px 20px rgba(14,26,22,.08);
  --shadow-lg:0 18px 48px rgba(14,26,22,.12);
  --sidebar-w:240px;
  --font-base:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font-base);
  font-size:16px;
  line-height:1.85;
  color:var(--ink-900);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:3px solid rgba(15,90,71,.28);outline-offset:2px;border-radius:6px;}

/* ---------- 侧边导航 ---------- */
.sidebar{
  position:fixed;
  top:0;left:0;
  width:var(--sidebar-w);
  height:100vh;
  background:var(--surface);
  border-right:1px solid var(--line);
  display:flex;
  flex-direction:column;
  padding:0 16px 20px;
  z-index:120;
  overflow-y:auto;
  transition:transform .26s ease;
}
.brand{
  position:relative;
  display:inline-flex;
  flex-wrap:wrap;
  align-items:baseline;
  gap:8px;
  padding-left:14px;
}
.brand::before{
  content:"";
  position:absolute;
  left:0;top:6px;bottom:6px;
  width:5px;
  border-radius:3px;
  background:var(--accent-500);
}
.brand-mark{font-size:19px;font-weight:700;letter-spacing:-.3px;color:var(--brand-700);}
.brand-sub{font-size:11px;letter-spacing:1.5px;color:var(--ink-400);}
.sidebar .brand{
  flex-direction:column;
  align-items:flex-start;
  gap:0;
  height:72px;
  justify-content:center;
  padding-left:16px;
}
.nav{display:flex;flex-direction:column;gap:4px;margin-top:8px;}
.nav-item{
  position:relative;
  display:flex;
  align-items:center;
  gap:10px;
  height:44px;
  padding:0 12px;
  border-radius:10px;
  font-size:15px;
  color:var(--ink-600);
  transition:background .15s ease,color .15s ease;
}
.nav-item svg{width:18px;height:18px;flex:0 0 18px;fill:none;stroke:currentColor;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.nav-item:hover{background:var(--brand-50);color:var(--brand-700);}
.nav-item.active{background:var(--brand-100);color:var(--brand-700);font-weight:600;}
.nav-item.active::before{
  content:"";
  position:absolute;
  left:0;top:9px;bottom:9px;
  width:3px;
  border-radius:3px;
  background:var(--accent-500);
}
.sidebar-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line);}
.side-mail,.side-time{font-size:12.5px;color:var(--ink-400);line-height:1.7;}
.side-mail{margin-top:12px;word-break:break-all;}
.drawer-close{
  display:none;
  position:absolute;
  top:14px;right:12px;
  width:44px;height:44px;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  color:var(--ink-600);
}
.drawer-close:hover{background:var(--brand-50);color:var(--brand-700);}
.drawer-close svg{width:20px;height:20px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}

/* ---------- 顶部移动栏 ---------- */
.topbar{
  display:none;
  align-items:center;
  justify-content:space-between;
  height:60px;
  padding:0 16px;
  background:var(--surface);
  border-bottom:1px solid var(--line);
  position:sticky;
  top:0;
  z-index:100;
}
.topbar .brand{padding-left:14px;}
.menu-btn{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  color:var(--ink-900);
}
.menu-btn:hover{background:var(--brand-50);color:var(--brand-700);}
.menu-btn svg{width:22px;height:22px;fill:none;stroke:currentColor;stroke-width:1.8;stroke-linecap:round;}
.scrim{
  position:fixed;
  inset:0;
  background:rgba(14,26,22,.45);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:110;
}
.scrim.show{opacity:1;visibility:visible;}

/* ---------- 主体 ---------- */
.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column;}
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 24px;}

/* ---------- 页面横幅 ---------- */
.page-hero{
  position:relative;
  min-height:240px;
  display:flex;
  align-items:center;
  background-image:linear-gradient(rgba(11,63,51,.78),rgba(11,63,51,.7)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
}
.page-hero .container{padding-top:44px;padding-bottom:44px;}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  background:rgba(224,160,58,.18);
  border:1px solid rgba(224,160,58,.5);
  color:#F6D8A3;
  font-size:12.5px;
  letter-spacing:1px;
  margin-bottom:14px;
}
.page-hero h1{
  font-size:40px;
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.5px;
  max-width:820px;
}
.page-hero p{
  margin-top:14px;
  font-size:16px;
  color:rgba(255,255,255,.82);
  max-width:680px;
}

/* ---------- 分类切换 ---------- */
.chip-row{
  display:flex;
  gap:12px;
  padding:24px 0;
  overflow-x:auto;
  scrollbar-width:none;
}
.chip-row::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  height:38px;
  padding:0 18px;
  border-radius:999px;
  background:var(--surface);
  border:1px solid var(--line);
  font-size:14px;
  color:var(--ink-600);
  transition:all .16s ease;
  white-space:nowrap;
}
.chip:hover{border-color:var(--brand-700);color:var(--brand-700);}
.chip.current{background:var(--brand-700);border-color:var(--brand-700);color:#fff;font-weight:600;}

/* ---------- 板块 ---------- */
.section{padding:72px 0;}
.section-tint{background:var(--brand-50);}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head h2{
  font-size:29px;
  line-height:1.36;
  font-weight:700;
  letter-spacing:-.3px;
}
.section-head p{margin-top:12px;color:var(--ink-600);font-size:16px;}
.lead{
  font-size:17px;
  line-height:1.95;
  color:var(--ink-600);
  border-left:3px solid var(--brand-700);
  padding-left:18px;
  max-width:780px;
}
.wide-figure{margin:36px 0 0;max-width:1000px;}
.wide-figure img{
  width:100%;
  aspect-ratio:16/7;
  object-fit:cover;
  border-radius:14px;
  box-shadow:var(--shadow-sm);
}
.wide-figure figcaption{
  margin-top:12px;
  font-size:13px;
  color:var(--ink-400);
  text-align:center;
}

/* ---------- 编号时间轴 ---------- */
.timeline{max-width:900px;margin-top:8px;}
.timeline li{
  position:relative;
  padding:0 0 38px 78px;
}
.timeline li::before{
  content:attr(data-step);
  position:absolute;
  left:0;top:-4px;
  width:48px;height:48px;
  border-radius:50%;
  border:2px solid var(--accent-500);
  background:var(--surface);
  color:var(--brand-700);
  font-size:16px;
  font-weight:700;
  display:flex;
  align-items:center;
  justify-content:center;
}
.timeline li::after{
  content:"";
  position:absolute;
  left:23px;top:54px;bottom:8px;
  width:2px;
  background:var(--brand-100);
}
.timeline li:last-child{padding-bottom:0;}
.timeline li:last-child::after{display:none;}
.timeline h3{
  font-size:20px;
  line-height:1.5;
  font-weight:600;
}
.timeline p{
  margin-top:8px;
  font-size:16px;
  line-height:1.9;
  color:var(--ink-600);
  max-width:720px;
}

/* ---------- 异常识别列表 ---------- */
.signal-list{border-top:1px solid var(--line);max-width:980px;}
.signal-list li{
  display:grid;
  grid-template-columns:120px 1fr;
  gap:20px;
  align-items:start;
  padding:22px 0;
  border-bottom:1px solid var(--line);
}
.signal-list h3{font-size:18px;line-height:1.55;font-weight:600;}
.signal-list p{margin-top:6px;font-size:15px;line-height:1.85;color:var(--ink-600);}
.badge{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:24px;
  padding:0 12px;
  border-radius:999px;
  font-size:13px;
  font-weight:600;
  white-space:nowrap;
}
.badge-warn{background:rgba(200,121,30,.12);color:var(--warn);}
.badge-danger{background:rgba(192,69,59,.12);color:var(--danger);}
.badge-success{background:rgba(47,143,91,.12);color:var(--success);}
.badge-brand{background:var(--brand-100);color:var(--brand-700);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  width:100%;
  padding:22px 0;
  text-align:left;
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  color:var(--ink-900);
  transition:color .15s ease;
}
.faq-q:hover{color:var(--brand-700);}
.faq-icon{
  position:relative;
  flex:0 0 22px;
  width:22px;height:22px;
  transition:transform .2s ease;
}
.faq-icon::before,.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--brand-700);
  border-radius:2px;
}
.faq-icon::before{left:0;top:10px;width:22px;height:2px;}
.faq-icon::after{left:10px;top:0;width:2px;height:22px;transition:opacity .2s ease;}
.faq-item.open .faq-icon{transform:rotate(180deg);}
.faq-item.open .faq-icon::after{opacity:0;}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .2s ease;
}
.faq-a-inner{
  padding:0 0 24px 18px;
  border-left:3px solid var(--accent-500);
  margin-bottom:22px;
  font-size:16px;
  line-height:1.9;
  color:var(--ink-600);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  line-height:1;
  transition:all .18s ease;
}
.btn-primary{background:var(--brand-700);color:#fff;}
.btn-primary:hover{background:var(--brand-600);box-shadow:var(--shadow-md);transform:translateY(-1px);}
.btn-primary:active{transform:none;background:var(--brand-900);box-shadow:none;}
.btn-accent{background:var(--accent-500);color:var(--ink-900);}
.btn-accent:hover{background:#D2932F;box-shadow:var(--shadow-md);transform:translateY(-1px);}
.btn-accent:active{transform:none;box-shadow:none;}
.btn-outline{background:var(--surface);border-color:var(--line);color:var(--ink-900);}
.btn-outline:hover{border-color:var(--brand-700);color:var(--brand-700);}
.btn-block{width:100%;}
.btn[disabled]{opacity:.45;pointer-events:none;}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:15px;
  font-weight:600;
  color:var(--brand-700);
  transition:color .15s ease;
}
.link-arrow span{transition:transform .18s ease;}
.link-arrow:hover{color:var(--brand-600);}
.link-arrow:hover span{transform:translateX(3px);}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:var(--radius-hero);
  background-color:var(--ink-900);
  background-image:linear-gradient(rgba(14,26,22,.92),rgba(14,26,22,.92)),url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  color:#fff;
  padding:52px 48px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
}
.cta-band h2{font-size:27px;line-height:1.4;font-weight:700;}
.cta-band p{margin-top:10px;color:#C9D3CE;font-size:15.5px;max-width:520px;}
.cta-actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}
.cta-link{color:#F1F7F4;font-size:15px;font-weight:600;display:inline-flex;align-items:center;gap:6px;transition:color .15s ease;}
.cta-link:hover{color:var(--accent-500);}

/* ---------- 页脚 ---------- */
.footer{
  background:var(--ink-900);
  color:#C9D3CE;
  margin-top:88px;
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer .brand{padding-left:22px;}
.footer .brand-mark{color:#fff;}
.footer .brand-sub{color:rgba(201,211,206,.7);}
.footer-about{
  margin-top:18px;
  font-size:14px;
  line-height:1.85;
  color:rgba(201,211,206,.78);
  max-width:320px;
}
.footer h4{
  font-size:15px;
  font-weight:700;
  color:#F1F7F4;
  margin-bottom:16px;
}
.footer ul li{margin-bottom:10px;}
.footer ul a{
  font-size:14px;
  color:rgba(201,211,206,.82);
  transition:color .15s ease;
}
.footer ul a:hover{color:var(--accent-500);}
.footer-contact p{font-size:14px;line-height:1.9;color:rgba(201,211,206,.82);margin-bottom:8px;}
.footer-contact strong{color:#F1F7F4;font-weight:600;margin-right:8px;}
.footer-bottom{
  margin-top:48px;
  padding-top:20px;
  border-top:1px solid rgba(255,255,255,.12);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(201,211,206,.62);
}

/* ---------- 响应式 ---------- */
@media (min-width:1280px) and (max-width:1439px){
  :root{--sidebar-w:220px;}
}
@media (max-width:1023px){
  .sidebar{
    width:280px;
    transform:translateX(-100%);
    box-shadow:var(--shadow-lg);
    padding-top:8px;
  }
  .sidebar.open{transform:translateX(0);}
  .sidebar .brand{padding-left:16px;padding-right:56px;height:64px;}
  .nav-item{height:48px;}
  .drawer-close{display:flex;}
  .topbar{display:flex;}
  .main{margin-left:0;}
  .container{padding:0 20px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:56px 0;}
  .page-hero h1{font-size:32px;}
  .cta-band{padding:40px 28px;}
}
@media (max-width:767px){
  .page-hero{min-height:210px;}
  .page-hero h1{font-size:28px;letter-spacing:-.2px;}
  .page-hero p{font-size:15px;}
  .section-head h2{font-size:24px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer{padding:48px 0 24px;}
  .signal-list li{grid-template-columns:1fr;gap:10px;}
  .timeline li{padding-left:62px;}
  .timeline li::before{width:40px;height:40px;font-size:14px;}
  .timeline li::after{left:19px;top:46px;}
  .btn{width:100%;}
  .cta-actions{width:100%;}
  .cta-band h2{font-size:22px;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .lead{font-size:16px;padding-left:14px;}
  .wide-figure img{aspect-ratio:4/3;}
}

/* roulang page: category3 */
:root{
  --brand-900:#0B3F33;
  --brand-700:#0F5A47;
  --brand-600:#146B55;
  --brand-100:#E3F0EA;
  --brand-50:#F1F7F4;
  --accent-500:#E0A03A;
  --accent-50:#FBF1DF;
  --ink-900:#0E1A16;
  --ink-600:#43524C;
  --ink-400:#7A8A83;
  --bg:#F7F5EF;
  --surface:#FFFFFF;
  --line:#E4E0D6;
  --success:#2F8F5B;
  --warn:#C8791E;
  --danger:#C0453B;
  --r-card:14px;
  --r-btn:10px;
  --r-pill:999px;
  --shadow-sm:0 1px 2px rgba(14,26,22,.06);
  --shadow-md:0 6px 20px rgba(14,26,22,.08);
  --shadow-lg:0 18px 48px rgba(14,26,22,.12);
  --font:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,sans-serif;
  --sidebar-w:240px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--ink-900);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;border-style:none}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit}
:focus-visible{outline:3px solid rgba(15,90,71,.28);outline-offset:2px;border-radius:6px}
::selection{background:var(--brand-100);color:var(--brand-900)}

.container,.wrap{width:100%;max-width:1120px;margin:0 auto;padding:0 32px}

/* ---------- 左侧导航 ---------- */
.app{display:flex;align-items:flex-start;min-height:100vh}
.sidebar{
  width:var(--sidebar-w);flex:0 0 var(--sidebar-w);
  position:sticky;top:0;height:100vh;z-index:60;
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 16px 22px;overflow-y:auto;
}
.brand{position:relative;display:flex;align-items:center;gap:8px;height:72px;padding-left:16px}
.brand::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:6px;height:24px;border-radius:3px;background:var(--accent-500);
}
.brand-mark{font-size:19px;font-weight:700;letter-spacing:-.3px;color:var(--brand-900)}
.brand-sub{font-size:12px;color:var(--ink-400);letter-spacing:.5px}
.drawer-close{display:none}
.nav{margin-top:10px;display:flex;flex-direction:column;gap:4px}
.nav a{
  position:relative;display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:var(--r-btn);
  font-size:15px;color:var(--ink-600);
  transition:background .15s ease,color .15s ease;
}
.nav a svg{width:18px;height:18px;flex:0 0 18px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round}
.nav a:hover{background:var(--brand-50);color:var(--brand-700)}
.nav a.active{background:var(--brand-100);color:var(--brand-700);font-weight:600}
.nav a.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;
  width:3px;border-radius:0 3px 3px 0;background:var(--accent-500);
}
.side-foot{margin-top:auto;padding-top:18px;border-top:1px solid var(--line)}
.side-foot .btn{width:100%;justify-content:center}
.side-foot p{margin-top:12px;font-size:12px;line-height:1.7;color:var(--ink-400)}
.side-foot strong{color:var(--ink-600);font-weight:600}

.topbar{display:none}
.scrim{display:none}

/* ---------- 主内容 ---------- */
.content{flex:1;min-width:0;display:flex;flex-direction:column}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1;cursor:pointer;
  border:1px solid transparent;background:transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
}
.btn-primary{background:var(--brand-700);color:#fff}
.btn-primary:hover{background:var(--brand-600);box-shadow:var(--shadow-md);transform:translateY(-1px)}
.btn-primary:active{transform:none;background:var(--brand-900);box-shadow:none}
.btn-accent{background:var(--accent-500);color:var(--ink-900)}
.btn-accent:hover{background:#D8942C;box-shadow:var(--shadow-md);transform:translateY(-1px)}
.btn-accent:active{transform:none;background:#C88B24;box-shadow:none}
.btn-outline{background:var(--surface);color:var(--ink-900);border-color:var(--line)}
.btn-outline:hover{border-color:var(--brand-700);color:var(--brand-700)}
.btn-light{background:transparent;color:#F1F7F4;border-color:rgba(241,247,244,.32)}
.btn-light:hover{border-color:var(--accent-500);color:var(--accent-500)}
.btn-ghost{display:inline-flex;align-items:center;gap:6px;padding:0;height:auto;color:var(--brand-700);font-weight:600;font-size:15px}
.btn-ghost svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:2;transition:transform .18s ease}
.btn-ghost:hover svg{transform:translateX(3px)}
.btn[disabled]{opacity:.45;pointer-events:none}

.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:var(--r-pill);font-size:13px;font-weight:600;
  background:var(--brand-100);color:var(--brand-700);
}
.badge-accent{background:var(--accent-50);color:var(--warn)}
.badge-row{display:flex;flex-wrap:wrap;gap:8px}

/* ---------- 页面横幅 ---------- */
.page-hero{
  position:relative;color:#fff;
  min-height:240px;display:flex;align-items:center;
  padding:52px 0 46px;
  background-image:linear-gradient(rgba(11,63,51,.74),rgba(11,63,51,.74)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.page-hero h1{
  font-size:38px;line-height:1.28;letter-spacing:-.5px;font-weight:700;
  max-width:20ch;
}
.page-hero .hero-desc{
  margin-top:14px;font-size:15px;line-height:1.8;color:rgba(255,255,255,.84);max-width:60ch;
}
.page-hero .badge{margin-bottom:18px;background:rgba(224,160,58,.18);color:#F5D9A6}

/* ---------- 分类切换 ---------- */
.chipbar{background:var(--surface);border-bottom:1px solid var(--line)}
.chips{display:flex;gap:10px;padding:16px 0;overflow-x:auto;scrollbar-width:none}
.chips::-webkit-scrollbar{display:none}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;
  height:38px;padding:0 18px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:var(--surface);
  font-size:14px;color:var(--ink-600);white-space:nowrap;
  transition:background .16s ease,color .16s ease,border-color .16s ease;
}
.chip:hover{border-color:var(--brand-700);color:var(--brand-700)}
.chip.is-active{background:var(--brand-700);border-color:var(--brand-700);color:#fff;font-weight:600}

/* ---------- 板块 ---------- */
.section{padding:76px 0}
.section-tight{padding:56px 0}
.section-head{max-width:62ch}
.eyebrow{
  display:inline-block;margin-bottom:12px;font-size:13px;font-weight:600;
  letter-spacing:1.5px;color:var(--brand-700);text-transform:uppercase;
}
h2{font-size:30px;line-height:1.35;letter-spacing:-.3px;font-weight:700}
.section-head p{margin-top:12px;font-size:15px;color:var(--ink-600);line-height:1.85}
h3{font-size:21px;line-height:1.5;font-weight:600}
.section-alt{background:var(--surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}

/* ---------- 对照两栏 ---------- */
.compare{
  display:grid;grid-template-columns:1fr 1px 1fr;
  gap:40px;align-items:start;margin-top:40px;
}
.compare-divider{background:var(--line);align-self:stretch;min-height:180px}
.compare-col{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-card);padding:28px 26px;box-shadow:var(--shadow-sm)}
.compare-col h3{display:flex;align-items:center;gap:10px;margin-bottom:6px}
.compare-col .col-note{font-size:13px;color:var(--ink-400);margin-bottom:20px}
.dot-mark{width:10px;height:10px;border-radius:50%;background:var(--accent-500);flex:0 0 10px}
.dot-mark.green{background:var(--brand-700)}
.prep-list{display:grid;gap:16px}
.prep-list li{position:relative;padding-left:24px;font-size:15px;line-height:1.8;color:var(--ink-600)}
.prep-list li::before{
  content:"";position:absolute;left:0;top:10px;
  width:8px;height:8px;border-radius:50%;background:var(--accent-500);
}
.prep-list.provide li::before{background:var(--brand-700)}
.prep-list strong{color:var(--ink-900);font-weight:600}

/* ---------- 表格 ---------- */
.table-wrap{
  margin-top:36px;background:var(--surface);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-sm);
}
table{width:100%;border-collapse:collapse;font-size:14px}
thead th{
  background:var(--brand-100);color:var(--brand-900);
  text-align:left;font-weight:600;font-size:14px;
  padding:15px 18px;white-space:nowrap;
}
tbody td{
  padding:16px 18px;border-top:1px solid var(--line);
  color:var(--ink-600);line-height:1.7;vertical-align:top;
}
tbody tr:nth-child(even){background:var(--bg)}
tbody td:first-child{color:var(--ink-900);font-weight:600}
.table-note{margin-top:14px;font-size:13px;color:var(--ink-400)}
.table-note a{color:var(--brand-700);text-decoration:underline;text-underline-offset:3px}
.table-note a:hover{color:var(--accent-500)}

/* ---------- 步骤 ---------- */
.steps{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;margin-top:44px;
}
.steps li{position:relative;padding-top:2px}
.step-num{
  position:relative;z-index:2;
  display:grid;place-items:center;width:44px;height:44px;
  border-radius:50%;border:1px solid var(--accent-500);
  background:var(--accent-50);color:var(--brand-900);
  font-size:15px;font-weight:700;letter-spacing:.5px;margin-bottom:16px;
}
.steps li:not(:last-child)::after{
  content:"";position:absolute;left:56px;right:-14px;top:22px;
  border-top:1px dashed #CFC9BA;z-index:1;
}
.steps h3{font-size:17px;margin-bottom:6px}
.steps p{font-size:14px;line-height:1.75;color:var(--ink-600)}

/* ---------- 图文分栏 ---------- */
.split{display:grid;grid-template-columns:5fr 7fr;gap:44px;align-items:center}
.split-media{position:relative;border-radius:var(--r-card);overflow:hidden;box-shadow:var(--shadow-md)}
.split-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.split-media .media-tag{
  position:absolute;left:16px;bottom:16px;
  background:var(--surface);color:var(--brand-700);
  font-size:13px;font-weight:600;padding:6px 14px;border-radius:var(--r-pill);
  box-shadow:var(--shadow-sm);
}
.split-body h2{margin-bottom:14px}
.split-body p{font-size:15px;line-height:1.85;color:var(--ink-600)}
.split-body p + p{margin-top:14px}
.mini-facts{display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:26px}
.mini-facts div{background:var(--surface);border:1px solid var(--line);border-radius:12px;padding:16px 18px}
.mini-facts strong{display:block;font-size:20px;font-weight:700;color:var(--brand-900);line-height:1.3}
.mini-facts span{display:block;margin-top:4px;font-size:13px;color:var(--ink-400);line-height:1.6}

/* ---------- FAQ ---------- */
.faq-list{margin-top:34px;display:grid;gap:12px;max-width:860px}
.faq-item{
  background:var(--surface);border:1px solid var(--line);
  border-radius:var(--r-card);overflow:hidden;
  transition:box-shadow .18s ease,border-color .18s ease;
}
.faq-item:hover{border-color:#D5CFC0;box-shadow:var(--shadow-sm)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:20px 22px;font-size:17px;font-weight:600;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 16px}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:var(--brand-700);border-radius:2px;
  transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item[open] .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-item[open]{border-color:var(--brand-100)}
.faq-answer{padding:0 22px 22px 22px;font-size:15px;line-height:1.85;color:var(--ink-600)}
.faq-answer p{margin:0}
.faq-foot{margin-top:22px;font-size:14px;color:var(--ink-400)}
.faq-foot a{color:var(--brand-700);font-weight:600;text-decoration:underline;text-underline-offset:3px}
.faq-foot a:hover{color:var(--accent-500)}

/* ---------- CTA 深色带 ---------- */
.cta-band{
  background:var(--ink-900);color:#F1F7F4;
  border-radius:20px;padding:52px 48px;
  display:grid;grid-template-columns:1.2fr auto;gap:36px;align-items:center;
  box-shadow:var(--shadow-lg);position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.1;pointer-events:none;
}
.cta-band > *{position:relative;z-index:1}
.cta-band h2{color:#fff;font-size:28px}
.cta-band p{margin-top:12px;font-size:15px;line-height:1.85;color:#B8C6C0;max-width:56ch}
.cta-actions{display:flex;flex-direction:column;gap:14px;align-items:flex-start}
.cta-actions .btn-ghost{color:#F1F7F4}
.cta-actions .btn-ghost:hover{color:var(--accent-500)}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink-900);color:#C9D3CE;padding:64px 0 0;margin-top:auto}
.footer .brand{height:auto;padding-bottom:10px}
.footer .brand-mark{color:#F1F7F4}
.footer .brand-sub{color:#9FB0A9}
.footer .brand::before{top:14px;transform:none}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px}
.footer h4{font-size:15px;font-weight:700;color:#F1F7F4;margin-bottom:14px}
.footer ul{display:grid;gap:2px}
.footer li a{font-size:14px;line-height:2.1;color:#C9D3CE;transition:color .15s ease}
.footer li a:hover{color:var(--accent-500)}
.footer-about{margin-top:14px;font-size:14px;line-height:1.85;color:#9FB0A9;max-width:34ch}
.footer-contact p{font-size:14px;line-height:1.9;color:#C9D3CE;margin-bottom:6px}
.footer-contact strong{color:#F1F7F4;font-weight:600;margin-right:6px}
.footer-bottom{
  margin-top:42px;padding:20px 0;border-top:1px solid rgba(255,255,255,.12);
  display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;
  font-size:13px;color:#8B9C95;
}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  :root{--sidebar-w:220px}
}
@media (max-width:1279px){
  :root{--sidebar-w:240px}
  .page-hero h1{font-size:34px}
}
@media (max-width:1023px){
  .topbar{
    display:flex;position:fixed;top:0;left:0;right:0;height:60px;z-index:80;
    align-items:center;justify-content:space-between;
    padding:0 12px 0 8px;background:var(--surface);border-bottom:1px solid var(--line);
    box-shadow:var(--shadow-sm);
  }
  .topbar .brand{height:60px}
  .menu-btn{
    width:44px;height:44px;display:grid;place-items:center;
    border:0;background:transparent;border-radius:var(--r-btn);cursor:pointer;color:var(--ink-900);
    transition:background .15s ease;
  }
  .menu-btn:hover{background:var(--brand-50)}
  .menu-btn svg{width:22px;height:22px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round}
  .app{display:block}
  .sidebar{
    position:fixed;top:0;left:0;bottom:0;height:100vh;
    width:280px;max-width:86vw;flex:none;
    transform:translateX(-100%);
    transition:transform .28s ease;
    z-index:120;box-shadow:var(--shadow-lg);
    padding-top:6px;
  }
  .sidebar.open{transform:none}
  .drawer-close{
    display:grid;place-items:center;position:absolute;top:8px;right:10px;
    width:44px;height:44px;border:0;background:transparent;border-radius:var(--r-btn);
    cursor:pointer;color:var(--ink-400);
  }
  .drawer-close:hover{background:var(--brand-50);color:var(--brand-700)}
  .drawer-close svg{width:20px;height:20px;stroke:currentColor;fill:none;stroke-width:1.8;stroke-linecap:round}
  .nav a{height:48px}
  .scrim{
    display:block;position:fixed;inset:0;z-index:110;
    background:rgba(14,26,22,.45);opacity:0;pointer-events:none;
    transition:opacity .25s ease;
  }
  .scrim.show{opacity:1;pointer-events:auto}
  .content{padding-top:60px}
  .split{grid-template-columns:1fr;gap:28px}
  .split-media{order:-1}
  .cta-band{grid-template-columns:1fr;padding:40px 32px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .page-hero{min-height:210px;padding:40px 0 36px}
  .page-hero h1{font-size:30px;max-width:24ch}
}
@media (max-width:860px){
  .compare{grid-template-columns:1fr;gap:24px}
  .compare-divider{display:none}
  .steps{grid-template-columns:1fr 1fr;gap:26px}
  .steps li:not(:last-child)::after{display:none}
}
@media (max-width:767px){
  body{font-size:15.5px}
  .container,.wrap{padding:0 20px}
  .section{padding:56px 0}
  .section-tight{padding:44px 0}
  h2{font-size:24px}
  h3{font-size:19px}
  .page-hero h1{font-size:26px;letter-spacing:-.2px}
  .page-hero .hero-desc{font-size:14px}
  .steps{grid-template-columns:1fr;gap:0}
  .steps li{padding-left:56px;padding-bottom:26px}
  .step-num{position:absolute;left:0;top:0;margin:0}
  .steps li:not(:last-child)::after{
    display:block;left:22px;right:auto;top:52px;bottom:4px;
    width:0;height:auto;border-top:0;border-left:1px dashed #CFC9BA;
  }
  .mini-facts{grid-template-columns:1fr;gap:12px}
  .compare-col{padding:22px 20px}
  .table-wrap{border:0;background:transparent;box-shadow:none;overflow:visible}
  table,thead,tbody,tr,td{display:block;width:100%}
  thead{display:none}
  tbody tr{
    background:var(--surface) !important;
    border:1px solid var(--line);border-radius:var(--r-card);
    margin-bottom:14px;padding:6px 0;box-shadow:var(--shadow-sm);
  }
  tbody td{
    border:0;padding:9px 18px;display:flex;gap:14px;
    justify-content:space-between;text-align:right;font-size:14px;
  }
  tbody td::before{
    content:attr(data-label);flex:0 0 auto;text-align:left;
    color:var(--ink-400);font-size:13px;font-weight:500;
  }
  .cta-band{padding:34px 24px}
  .cta-band h2{font-size:22px}
  .footer{padding:48px 0 0}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:6px}
  .faq-item summary{font-size:16px;padding:18px}
  .faq-answer{padding:0 18px 18px}
}
@media (max-width:520px){
  .container,.wrap{padding:0 16px}
  .btn{width:100%}
  .btn-ghost{width:auto}
  .cta-actions{width:100%;align-items:stretch}
  .cta-actions .btn-ghost{justify-content:flex-start}
  .chip{height:36px;padding:0 15px;font-size:13px}
}

/* roulang page: category4 */
:root{
  --brand-900:#0B3F33;
  --brand-700:#0F5A47;
  --brand-600:#146B55;
  --brand-100:#E3F0EA;
  --brand-50:#F1F7F4;
  --accent-500:#E0A03A;
  --accent-50:#FBF1DF;
  --ink-900:#0E1A16;
  --ink-600:#43524C;
  --ink-400:#7A8A83;
  --bg:#F7F5EF;
  --surface:#FFFFFF;
  --line:#E4E0D6;
  --success:#2F8F5B;
  --warn:#C8791E;
  --danger:#C0453B;
  --radius-card:14px;
  --radius-btn:10px;
  --radius-pill:999px;
  --shadow-sm:0 1px 2px rgba(14,26,22,.06);
  --shadow-md:0 6px 20px rgba(14,26,22,.08);
  --shadow-lg:0 18px 48px rgba(14,26,22,.12);
  --sidebar-w:240px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-left:var(--sidebar-w);
  background:var(--bg);
  color:var(--ink-900);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand-700);text-decoration:none;}
a:hover{color:var(--brand-600);}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:3px solid rgba(15,90,71,.28);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:1120px;margin:0 auto;padding:0 32px;}

/* ---------- 左侧导航 ---------- */
.sidebar{
  position:fixed;left:0;top:0;bottom:0;width:var(--sidebar-w);
  background:var(--surface);border-right:1px solid var(--line);
  display:flex;flex-direction:column;
  padding:0 16px 24px;z-index:60;
  overflow-y:auto;
}
.sidebar-head{
  height:72px;display:flex;align-items:center;justify-content:space-between;
  position:relative;padding-left:10px;flex:0 0 auto;
}
.sidebar-head::before{
  content:"";position:absolute;left:0;top:22px;width:6px;height:28px;
  border-radius:3px;background:var(--accent-500);
}
.brand{display:inline-flex;align-items:baseline;gap:6px;text-decoration:none;line-height:1.2;}
.brand-mark{font-size:19px;font-weight:700;letter-spacing:-.3px;color:var(--brand-900);}
.brand-sub{font-size:11.4px;font-weight:600;color:var(--ink-400);letter-spacing:.6px;}
.drawer-close{
  display:none;width:44px;height:44px;border:0;background:transparent;
  font-size:24px;line-height:1;color:var(--ink-600);cursor:pointer;border-radius:10px;
}
.side-nav{display:flex;flex-direction:column;gap:4px;margin-top:14px;flex:1 1 auto;}
.nav-item{
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 12px;border-radius:10px;
  font-size:15px;color:var(--ink-600);position:relative;
  transition:background .15s ease,color .15s ease;
}
.nav-item svg{width:18px;height:18px;flex:0 0 18px;stroke:currentColor;fill:none;stroke-width:1.7;stroke-linecap:round;stroke-linejoin:round;}
.nav-item:hover{background:var(--brand-50);color:var(--brand-700);}
.nav-item.active{background:var(--brand-100);color:var(--brand-700);font-weight:600;}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:2px;background:var(--accent-500);
}
.side-sep{height:1px;background:var(--line);margin:18px 4px;flex:0 0 auto;}
.side-foot{display:flex;flex-direction:column;gap:12px;flex:0 0 auto;}
.side-contact{font-size:12.5px;line-height:1.7;color:var(--ink-400);padding:0 4px;}
.side-contact strong{display:block;color:var(--ink-600);font-weight:600;}

/* ---------- 顶部栏（移动端） ---------- */
.topbar{
  display:none;position:fixed;top:0;left:0;right:0;height:60px;z-index:55;
  background:var(--surface);border-bottom:1px solid var(--line);
  align-items:center;justify-content:space-between;padding:0 16px;
}
.topbar .brand{padding-left:10px;position:relative;}
.topbar .brand::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:5px;height:22px;border-radius:3px;background:var(--accent-500);
}
.menu-btn{
  width:44px;height:44px;border:1px solid var(--line);border-radius:10px;
  background:var(--surface);display:inline-flex;align-items:center;justify-content:center;
  cursor:pointer;transition:border-color .15s ease,background .15s ease;
}
.menu-btn:hover{border-color:var(--brand-700);background:var(--brand-50);}
.menu-btn svg{width:22px;height:22px;stroke:var(--ink-900);fill:none;stroke-width:1.8;stroke-linecap:round;}
.overlay{
  position:fixed;inset:0;background:rgba(14,26,22,.45);
  opacity:0;visibility:hidden;transition:opacity .2s ease,visibility .2s ease;z-index:59;
}
.overlay.show{opacity:1;visibility:visible;}

/* ---------- 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;cursor:pointer;
  transition:background .18s ease,color .18s ease,border-color .18s ease,box-shadow .18s ease,transform .18s ease;
  text-align:center;
}
.btn-primary{background:var(--brand-700);color:#fff;}
.btn-primary:hover{background:var(--brand-600);color:#fff;box-shadow:var(--shadow-md);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(0);background:var(--brand-900);}
.btn-accent{background:var(--accent-500);color:var(--ink-900);}
.btn-accent:hover{background:#ecae4c;color:var(--ink-900);box-shadow:var(--shadow-md);transform:translateY(-1px);}
.btn-accent:active{transform:translateY(0);background:#cf9130;}
.btn-outline{background:var(--surface);color:var(--ink-900);border-color:var(--line);}
.btn-outline:hover{border-color:var(--brand-700);color:var(--brand-700);}
.btn-ghost{
  background:transparent;color:var(--brand-700);padding:0;height:auto;font-weight:600;
}
.btn-ghost .arrow{transition:transform .18s ease;display:inline-block;}
.btn-ghost:hover .arrow{transform:translateX(3px);}
.btn-block{width:100%;}

/* ---------- 页头横幅 ---------- */
.page-hero{
  position:relative;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  color:#fff;
  padding:64px 0 60px;
  isolation:isolate;
}
.page-hero::before{
  content:"";position:absolute;inset:0;background:rgba(11,63,51,.72);z-index:-1;
}
.crumb{font-size:13px;color:rgba(255,255,255,.72);margin-bottom:16px;letter-spacing:.2px;}
.crumb a{color:rgba(255,255,255,.8);}
.crumb a:hover{color:var(--accent-500);}
.page-hero h1{
  font-size:40px;line-height:1.25;font-weight:700;letter-spacing:-.5px;
  max-width:820px;margin-bottom:16px;
}
.page-hero .hero-desc{
  font-size:16px;line-height:1.8;color:rgba(255,255,255,.86);max-width:660px;
}

/* ---------- 分类切换 ---------- */
.chip-bar{
  background:var(--surface);border-bottom:1px solid var(--line);
  padding:16px 0;
  position:sticky;top:0;z-index:40;
}
.chip-row{
  display:flex;gap:10px;overflow-x:auto;scrollbar-width:none;padding-bottom:2px;
}
.chip-row::-webkit-scrollbar{display:none;}
.chip{
  flex:0 0 auto;display:inline-flex;align-items:center;height:38px;padding:0 18px;
  border-radius:var(--radius-pill);border:1px solid var(--line);
  background:var(--surface);color:var(--ink-600);font-size:14px;font-weight:500;
  white-space:nowrap;transition:all .16s ease;
}
.chip:hover{border-color:var(--brand-700);color:var(--brand-700);}
.chip.active{background:var(--brand-700);border-color:var(--brand-700);color:#fff;font-weight:600;}

/* ---------- 区块 ---------- */
.section{padding:88px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:720px;margin-bottom:36px;}
.section-head h2{
  font-size:30px;line-height:1.35;font-weight:700;letter-spacing:-.3px;
  margin-bottom:14px;
}
.section-head p{font-size:16px;color:var(--ink-600);}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:1px;color:var(--brand-700);
  background:var(--brand-100);padding:5px 12px;border-radius:var(--radius-pill);
  margin-bottom:16px;
}

/* ---------- FAQ 主体 ---------- */
.faq-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;gap:40px;align-items:start;
}
.faq-list{
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:8px 24px;box-shadow:var(--shadow-sm);max-width:820px;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:0;}
.faq-q{
  width:100%;display:flex;align-items:flex-start;justify-content:space-between;gap:16px;
  background:transparent;border:0;padding:22px 0;text-align:left;cursor:pointer;
  font-size:17px;font-weight:600;line-height:1.6;color:var(--ink-900);
  transition:color .16s ease;
}
.faq-q:hover{color:var(--brand-700);}
.faq-sign{position:relative;width:16px;height:16px;flex:0 0 16px;margin-top:5px;}
.faq-sign::before,.faq-sign::after{
  content:"";position:absolute;background:var(--brand-700);border-radius:2px;
  transition:transform .22s ease,opacity .22s ease;
}
.faq-sign::before{left:0;top:7px;width:16px;height:2px;}
.faq-sign::after{left:7px;top:0;width:2px;height:16px;}
.faq-item.open .faq-sign::after{transform:scaleY(0);opacity:0;}
.faq-a{
  max-height:0;overflow:hidden;transition:max-height .28s ease;
}
.faq-a p{
  font-size:15px;line-height:1.85;color:var(--ink-600);
  padding:0 0 22px 16px;border-left:3px solid var(--accent-500);
  margin-left:2px;
}
.faq-item.open .faq-a{max-height:360px;}

/* ---------- 联系卡 ---------- */
.contact-card{
  position:sticky;top:110px;
  background:var(--surface);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:26px 24px;box-shadow:var(--shadow-sm);
}
.contact-card h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.contact-card .cc-lead{font-size:14px;color:var(--ink-600);line-height:1.75;margin-bottom:20px;}
.contact-meta{display:flex;flex-direction:column;gap:14px;margin-bottom:22px;}
.contact-meta div{font-size:14px;color:var(--ink-600);line-height:1.7;}
.contact-meta strong{
  display:block;font-size:12.5px;font-weight:600;color:var(--ink-400);
  letter-spacing:.6px;margin-bottom:2px;
}
.contact-meta a{color:var(--brand-700);font-weight:600;}
.cc-note{
  margin-top:16px;font-size:13px;line-height:1.7;color:var(--ink-400);
  padding-top:16px;border-top:1px dashed var(--line);
}
.status-pill{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 12px;
  border-radius:var(--radius-pill);font-size:13px;font-weight:600;
  background:rgba(47,143,91,.12);color:var(--success);margin-bottom:14px;
}
.status-pill i{width:7px;height:7px;border-radius:50%;background:var(--success);display:inline-block;}

/* ---------- 信息准备（图文） ---------- */
.prep-grid{
  display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:center;
}
.prep-figure{
  border-radius:var(--radius-card);overflow:hidden;box-shadow:var(--shadow-md);
  border:1px solid var(--line);background:var(--surface);
}
.prep-figure img{width:100%;aspect-ratio:16/10;object-fit:cover;}
.prep-body h2{font-size:30px;line-height:1.35;font-weight:700;margin-bottom:14px;letter-spacing:-.3px;}
.prep-body > p{font-size:16px;color:var(--ink-600);margin-bottom:24px;}
.check-list{display:flex;flex-direction:column;gap:14px;margin-bottom:28px;}
.check-list li{
  position:relative;padding-left:28px;font-size:15px;line-height:1.8;color:var(--ink-600);
}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:16px;height:16px;
  border-radius:50%;border:1.5px solid var(--accent-500);background:var(--accent-50);
}
.check-list li::after{
  content:"";position:absolute;left:5px;top:14px;width:6px;height:6px;
  border-radius:50%;background:var(--accent-500);
}
.check-list li strong{color:var(--ink-900);font-weight:600;}
.inline-links{display:flex;flex-wrap:wrap;gap:10px 22px;font-size:15px;font-weight:600;}

/* ---------- 处理流程（非卡片） ---------- */
.flow-row{
  display:grid;grid-template-columns:repeat(3,1fr);gap:32px;
  border-top:1px solid var(--line);padding-top:36px;
}
.flow-step{position:relative;padding-right:16px;}
.flow-step + .flow-step::before{
  content:"";position:absolute;left:-16px;top:6px;bottom:6px;width:1px;
  background:var(--line);
}
.flow-num{
  width:44px;height:44px;border-radius:50%;border:1.5px solid var(--accent-500);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;color:var(--brand-900);
  background:var(--accent-50);margin-bottom:16px;
}
.flow-step h3{font-size:19px;font-weight:600;margin-bottom:8px;}
.flow-step p{font-size:14px;line-height:1.8;color:var(--ink-600);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:var(--ink-900);border-radius:20px;
  padding:56px 56px;color:#fff;
  display:flex;align-items:center;justify-content:space-between;gap:40px;
  isolation:isolate;
}
.cta-band::before{
  content:"";position:absolute;inset:0;z-index:-1;
  background-image:url("/assets/images/backpic/back-3.webp");
  background-size:cover;background-position:center;opacity:.12;
}
.cta-band h2{font-size:30px;line-height:1.35;font-weight:700;margin-bottom:10px;letter-spacing:-.3px;}
.cta-band p{font-size:15px;color:#C9D3CE;max-width:520px;}
.cta-actions{display:flex;flex-direction:column;align-items:flex-start;gap:14px;flex:0 0 auto;}
.cta-actions .btn-ghost{color:#F7F5EF;}
.cta-actions .btn-ghost:hover{color:var(--accent-500);}

/* ---------- 页脚 ---------- */
.footer{background:var(--ink-900);color:#C9D3CE;padding:64px 0 28px;margin-top:0;}
.footer .brand-mark{color:#fff;}
.footer .brand-sub{color:#8FA39B;}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;
  padding-bottom:44px;border-bottom:1px solid rgba(255,255,255,.12);
}
.footer h4{font-size:15px;font-weight:700;color:#F3F6F4;margin-bottom:16px;}
.footer ul{display:flex;flex-direction:column;gap:10px;}
.footer a{color:#C9D3CE;font-size:14px;transition:color .15s ease;}
.footer a:hover{color:var(--accent-500);}
.footer-about{font-size:13.5px;line-height:1.85;color:#9BAA A4;color:#9BAAA4;margin-top:16px;max-width:300px;}
.footer-contact p{font-size:14px;line-height:1.85;margin-bottom:8px;color:#C9D3CE;}
.footer-contact strong{color:#F3F6F4;font-weight:600;display:block;font-size:12.5px;letter-spacing:.5px;}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding-top:24px;font-size:13px;color:#8FA39B;flex-wrap:wrap;
}

/* ---------- 响应式 ---------- */
@media (max-width:1439px){
  :root{--sidebar-w:220px;}
}
@media (max-width:1279px){
  :root{--sidebar-w:240px;}
}
@media (max-width:1023px){
  body{padding-left:0;padding-top:60px;}
  .sidebar{
    transform:translateX(-100%);transition:transform .26s ease;
    width:280px;box-shadow:var(--shadow-lg);
  }
  .sidebar.open{transform:translateX(0);}
  .topbar{display:flex;}
  .drawer-close{display:inline-flex;align-items:center;justify-content:center;}
  .nav-item{height:48px;}
  .page-hero{padding:52px 0 48px;}
  .page-hero h1{font-size:32px;}
  .chip-bar{top:60px;}
  .faq-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .contact-card{position:static;}
  .prep-grid{grid-template-columns:1fr;gap:32px;}
  .flow-row{grid-template-columns:1fr;gap:28px;}
  .flow-step + .flow-step::before{display:none;}
  .flow-step{padding-right:0;padding-top:0;display:flex;flex-direction:column;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:40px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .section{padding:64px 0;}
}
@media (max-width:767px){
  .container{padding:0 24px;}
  .page-hero h1{font-size:28px;}
  .section-head h2,.prep-body h2,.cta-band h2{font-size:24px;}
  .faq-list{padding:4px 18px;}
  .faq-q{font-size:16px;padding:18px 0;}
  .btn{width:100%;}
  .chip-bar .btn{width:auto;}
  .cta-actions{width:100%;}
  .cta-band{padding:32px 24px;border-radius:16px;}
  .footer{padding:48px 0 24px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media (max-width:519px){
  .container{padding:0 16px;}
  .sidebar{width:270px;}
  .faq-a p{padding-left:12px;}
  .flow-step p{font-size:13.5px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
}