/* roulang page: index */
:root{
  --ink:#0E3B36;
  --ink-2:#14514A;
  --copper:#D97941;
  --copper-2:#B85F2F;
  --ivory:#F6F1E7;
  --card:#FFFDF8;
  --soft:#EFE7D8;
  --text:#1C2422;
  --muted:#66706B;
  --line:#D8D1C4;
  --ok:#2F7D5A;
  --err:#B54434;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:10px;
  --sh:0 8px 24px rgba(20,35,32,.08);
  --sh-hover:0 14px 34px rgba(20,35,32,.12);
  --ff:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",Helvetica,Arial,sans-serif;
  --ff-title:"Noto Serif SC","Songti SC","Source Han Serif SC","PingFang SC","Microsoft YaHei",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:var(--ff);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--ivory);
  -webkit-font-smoothing:antialiased;
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;object-fit:cover}
a{color:var(--copper-2);text-decoration:none;transition:color .18s ease,text-decoration-color .18s ease}
a:hover{color:var(--copper);text-decoration:underline;text-underline-offset:3px}
h1,h2,h3,h4,h5{font-family:var(--ff-title);color:var(--ink);font-weight:700;line-height:1.28;margin:0 0 .55em;letter-spacing:.005em}
p{margin:0 0 1em}
ul,ol{margin:0 0 1em;padding-left:1.2em}
li{margin-bottom:.4em}
strong{color:var(--ink)}
button{font-family:inherit}
:focus-visible{outline:none;box-shadow:0 0 0 3px rgba(217,121,65,.35);border-radius:6px}

/* 容器 */
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 24px}
.container-narrow{max-width:880px}

/* 顶部导航 */
.site-header{
  position:sticky;top:0;z-index:80;
  padding:12px 0;
  background:linear-gradient(180deg,rgba(246,241,231,.97) 0%,rgba(246,241,231,.88) 100%);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.nav-card{
  position:relative;
  display:flex;align-items:center;gap:16px;
  min-height:78px;
  padding:12px 16px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--sh);
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  position:relative;width:30px;height:30px;flex:0 0 auto;
  border:2px solid var(--copper);border-radius:9px;
  background:linear-gradient(135deg,rgba(217,121,65,.18),rgba(14,59,54,.06));
}
.brand-mark::before,.brand-mark::after{content:"";position:absolute;background:var(--copper-2);border-radius:2px}
.brand-mark::before{left:6px;right:6px;top:50%;height:2px;transform:translateY(-50%)}
.brand-mark::after{top:6px;bottom:6px;left:50%;width:2px;transform:translateX(-50%);opacity:.45}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-family:var(--ff-title);font-size:18px;color:var(--ink);letter-spacing:.02em}
.brand-text span{font-size:11px;color:var(--muted);letter-spacing:.16em;margin-top:3px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:9px 12px;min-height:44px;
  border-radius:12px;
  font-size:14px;color:var(--ink);
  border:1px solid transparent;
  transition:background .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.nav-item i{font-size:12.5px;opacity:.7}
.nav-item:hover{background:var(--soft);color:var(--ink-2);text-decoration:none;transform:translateY(-1px)}
.nav-item.is-active{background:rgba(217,121,65,.14);border-color:rgba(217,121,65,.38);color:var(--copper-2);font-weight:600}
.nav-item.is-active i{opacity:1}
.nav-cta{flex:0 0 auto;margin-left:8px}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;margin-left:auto;
  border-radius:12px;border:1px solid var(--line);
  background:var(--soft);color:var(--ink);font-size:16px;cursor:pointer;
  transition:background .18s ease;
}
.nav-toggle:hover{background:#E5DAC6}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 22px;
  border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.2;
  font-family:var(--ff);
  cursor:pointer;text-align:center;
  transition:transform .18s ease,background-color .18s ease,border-color .18s ease,box-shadow .18s ease,color .18s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px)}
.btn-primary{background:var(--ink);color:var(--ivory);border-color:var(--ink)}
.btn-primary:hover{background:var(--ink-2);color:var(--ivory);box-shadow:var(--sh-hover)}
.btn-ghost{background:transparent;color:var(--copper-2);border-color:var(--copper)}
.btn-ghost:hover{background:rgba(217,121,65,.12);color:var(--copper-2)}
.btn-light{background:var(--ivory);color:var(--ink);border-color:var(--ivory)}
.btn-light:hover{background:#FFFDF8;color:var(--ink);box-shadow:var(--sh-hover)}
.btn-block{width:100%}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14.5px;font-weight:600;color:var(--copper-2)}
.link-more i{font-size:12px;transition:transform .18s ease}
.link-more:hover i{transform:translateX(3px)}

/* 通用板块 */
.section{padding:96px 0;position:relative}
.section-tight{padding:72px 0}
.section-alt{background:var(--soft)}
.sec-head{max-width:780px;margin-bottom:44px}
.kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--copper-2);
  text-transform:none;margin-bottom:14px;font-weight:600;
}
.kicker::before{content:"";width:22px;height:2px;background:var(--copper);border-radius:2px}
.sec-title{font-size:clamp(26px,3vw,34px);margin-bottom:14px}
.sec-desc{color:var(--muted);font-size:16px;margin:0;max-width:720px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:12.5px;font-weight:600;
  background:rgba(217,121,65,.14);color:var(--copper-2);
  border:1px solid rgba(217,121,65,.28);
}
.tag-plain{background:var(--soft);color:var(--ink-2);border-color:var(--line)}

/* Hero */
.hero{padding:52px 0 88px;position:relative;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    repeating-linear-gradient(90deg,rgba(14,59,54,.05) 0 1px,transparent 1px 96px),
    repeating-linear-gradient(0deg,rgba(14,59,54,.04) 0 1px,transparent 1px 96px);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 78%);
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.6),transparent 78%);
}
.hero-inner{position:relative;z-index:1}
.hero h1{
  font-size:clamp(34px,4.6vw,60px);
  line-height:1.14;
  letter-spacing:-.01em;
  margin-bottom:20px;
}
.hero-lead{font-size:18.5px;color:var(--muted);max-width:580px;margin-bottom:30px;line-height:1.8}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:32px}
.hero-points{display:flex;flex-wrap:wrap;gap:10px 22px;list-style:none;padding:0;margin:0}
.hero-points li{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--muted);margin:0}
.hero-points i{color:var(--ok);font-size:13px}
.hero-figure{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh-hover);
  background:var(--ink);
}
.hero-figure>img{width:100%;height:100%;min-height:430px;object-fit:cover;opacity:.94}
.hero-figure::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,59,54,.05) 30%,rgba(14,59,54,.55) 100%);
}
.hero-steps{
  position:absolute;left:14px;right:14px;bottom:14px;z-index:2;
  background:rgba(14,59,54,.88);
  border:1px solid rgba(246,241,231,.16);
  border-radius:var(--r-md);
  padding:8px 10px;
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
}
.step-row{display:flex;align-items:center;gap:12px;padding:10px 10px;color:var(--ivory);font-size:14px}
.step-row+.step-row{border-top:1px solid rgba(246,241,231,.16)}
.step-row i.ico{color:var(--copper);font-size:14px;width:18px;text-align:center}
.step-row .arrow{margin-left:auto;font-size:11px;opacity:.55}

/* 分类快捷入口 */
.cat-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px}
.cat-card{
  display:flex;flex-direction:column;gap:12px;
  padding:22px;border-radius:var(--r-md);
  background:var(--card);border:1px solid var(--line);
  box-shadow:var(--sh);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  color:var(--text);height:100%;
}
.cat-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover);border-color:rgba(217,121,65,.5);text-decoration:none;color:var(--text)}
.cat-card .icon-badge{
  width:46px;height:46px;border-radius:13px;display:grid;place-items:center;
  background:rgba(217,121,65,.14);color:var(--copper-2);font-size:18px;
  border:1px solid rgba(217,121,65,.22);
}
.cat-card h3{font-size:18.5px;margin:0}
.cat-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.75}
.cat-card .go{margin-top:auto;font-size:13.5px;font-weight:600;color:var(--copper-2);display:inline-flex;align-items:center;gap:6px}
.cat-card:hover .go i{transform:translateX(3px)}
.cat-card .go i{transition:transform .18s ease;font-size:11px}

/* 服务 */
.service-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);gap:24px;align-items:start}
.service-main{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh);height:100%;
  display:flex;flex-direction:column;
}
.service-main .media{position:relative;overflow:hidden}
.service-main .media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease}
.service-main:hover .media img{transform:scale(1.03)}
.service-main .body{padding:26px 28px 28px}
.service-main h3{font-size:22px;margin-bottom:10px}
.service-main p{color:var(--muted);font-size:15px;margin-bottom:18px}
.service-side{display:grid;gap:20px}
.service-mini{
  display:flex;gap:16px;align-items:flex-start;
  padding:22px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  color:var(--text);
}
.service-mini:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(217,121,65,.45);text-decoration:none;color:var(--text)}
.service-mini h3{font-size:18px;margin:0 0 6px}
.service-mini p{font-size:14px;color:var(--muted);margin:0 0 10px}
.service-mini .go{font-size:13px;font-weight:600;color:var(--copper-2)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;
  background:var(--ink);color:var(--ivory);margin-bottom:14px;
}

/* 能力数据带 */
.stats{
  background:var(--ink);color:var(--ivory);position:relative;overflow:hidden;
  padding:80px 0;
}
.stats::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    repeating-linear-gradient(90deg,rgba(246,241,231,.09) 0 1px,transparent 1px 88px),
    repeating-linear-gradient(0deg,rgba(246,241,231,.06) 0 1px,transparent 1px 88px);
  opacity:.5;
}
.stats .container{position:relative;z-index:1}
.stats .sec-title{color:var(--ivory)}
.stats .sec-desc{color:rgba(246,241,231,.72)}
.stats-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;margin-top:44px}
.stat{
  padding:24px 20px;border-radius:var(--r-md);
  background:rgba(246,241,231,.06);
  border:1px solid rgba(246,241,231,.16);
  transition:background .2s ease,transform .2s ease;
}
.stat:hover{background:rgba(246,241,231,.1);transform:translateY(-3px)}
.stat-num{
  display:block;font-size:32px;font-weight:700;line-height:1.1;
  color:var(--copper);font-family:var(--ff-title);margin-bottom:12px;
  letter-spacing:.02em;
}
.stat h3{color:var(--ivory);font-size:17.5px;margin:0 0 8px;font-family:var(--ff)}
.stat p{margin:0;font-size:14px;color:rgba(246,241,231,.74);line-height:1.75}

/* 场景/案例 */
.case-grid{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);gap:24px;align-items:stretch}
.case-main{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh);background:var(--card);
  display:flex;flex-direction:column;
}
.case-main img{width:100%;aspect-ratio:16/10;object-fit:cover}
.case-main .body{padding:24px 26px 26px}
.case-main h3{font-size:22px;margin:12px 0 10px}
.case-main p{color:var(--muted);font-size:15px;margin:0 0 16px}
.case-side{display:grid;gap:20px}
.case-row{
  display:flex;gap:16px;align-items:center;
  padding:16px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
  color:var(--text);
}
.case-row:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(217,121,65,.45);text-decoration:none;color:var(--text)}
.case-row img{width:104px;height:84px;border-radius:12px;object-fit:cover;flex:0 0 auto}
.case-row h3{font-size:16.5px;margin:6px 0 6px;line-height:1.45}
.case-row p{font-size:13.5px;color:var(--muted);margin:0}

/* 流程 */
.flow-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;position:relative}
.flow-grid::before{
  content:"";position:absolute;top:38px;left:6%;right:6%;height:2px;
  background:repeating-linear-gradient(90deg,var(--line) 0 10px,transparent 10px 20px);
  z-index:0;
}
.flow-card{
  position:relative;z-index:1;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 24px;box-shadow:var(--sh);
  transition:transform .2s ease,box-shadow .2s ease;
}
.flow-card:hover{transform:translateY(-4px);box-shadow:var(--sh-hover)}
.flow-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:52px;height:52px;border-radius:14px;
  background:var(--ink);color:var(--ivory);
  font-family:var(--ff-title);font-size:19px;font-weight:700;
  margin-bottom:18px;
}
.flow-card h3{font-size:19px;margin:0 0 10px}
.flow-card p{font-size:14.5px;color:var(--muted);margin:0 0 16px}

/* 最新信息 */
.posts-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px}
.post-card{
  display:flex;flex-direction:column;
  padding:24px;background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-md);box-shadow:var(--sh);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.post-card:hover{transform:translateY(-3px);box-shadow:var(--sh-hover);border-color:rgba(217,121,65,.42)}
.post-card .post-top{display:flex;align-items:center;gap:10px;margin-bottom:12px;flex-wrap:wrap}
.post-card h3{font-size:18.5px;margin:0 0 10px;line-height:1.5}
.post-card h3 a{color:var(--ink)}
.post-card h3 a:hover{color:var(--copper-2)}
.post-card p{font-size:14.5px;color:var(--muted);margin:0 0 18px;line-height:1.8}
.post-meta{
  margin-top:auto;display:flex;align-items:center;gap:14px;
  font-size:13px;color:var(--muted);
  padding-top:14px;border-top:1px solid var(--line);
}
.post-meta i{font-size:12px;color:var(--copper);margin-right:5px}
.empty-state{
  grid-column:1/-1;
  padding:36px;text-align:center;border-radius:var(--r-md);
  background:var(--card);border:1px dashed var(--line);color:var(--muted);
}

/* FAQ */
.faq-list{border-top:1px solid var(--line)}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item summary{
  display:flex;align-items:center;gap:16px;
  padding:20px 4px;cursor:pointer;list-style:none;
  font-family:var(--ff-title);font-size:17.5px;font-weight:600;color:var(--ink);
  line-height:1.6;transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--copper-2)}
.faq-item summary .faq-ico{
  margin-left:auto;flex:0 0 auto;width:26px;height:26px;border-radius:8px;
  display:grid;place-items:center;font-size:11px;
  background:var(--soft);color:var(--ink-2);
  transition:transform .2s ease,background .2s ease,color .2s ease;
}
.faq-item[open] summary .faq-ico{transform:rotate(45deg);background:rgba(217,121,65,.16);color:var(--copper-2)}
.faq-body{padding:0 4px 22px;max-width:820px}
.faq-body p{font-size:15.5px;color:var(--muted);line-height:1.85;margin:0}

/* 联系 */
.contact-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;align-items:start}
.form-card{
  background:var(--card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:30px;box-shadow:var(--sh);
}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--ink);margin-bottom:8px}
.field .req{color:var(--err);margin-left:3px}
.field input[type=text],.field input[type=tel],.field input[type=email],.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;
  font-family:var(--ff);font-size:15px;color:var(--text);
  background:#FFFDF8;border:1px solid var(--line);border-radius:10px;
  box-shadow:none;margin:0;transition:border-color .18s ease,box-shadow .18s ease;
  appearance:none;-webkit-appearance:none;
}
.field textarea{height:auto;min-height:118px;padding:12px 14px;line-height:1.75;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--copper);
  box-shadow:0 0 0 3px rgba(217,121,65,.28);
}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:13.5px;color:var(--muted);line-height:1.7;margin-bottom:20px}
.check-line input{width:18px;height:18px;margin:2px 0 0;accent-color:var(--copper-2)}
.form-msg{font-size:14px;margin:14px 0 0;min-height:22px}
.form-msg.is-ok{color:var(--ok)}
.form-msg.is-error{color:var(--err)}
.info-card{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--sh);
  background:var(--ink);color:var(--ivory);padding:30px;
}
.info-card::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  opacity:.22;
}
.info-card>*{position:relative;z-index:1}
.info-card h3{color:var(--ivory);font-size:21px;margin-bottom:8px}
.info-card .lead{color:rgba(246,241,231,.76);font-size:14.5px;margin-bottom:24px}
.info-list{list-style:none;padding:0;margin:0 0 24px}
.info-list li{display:flex;gap:14px;align-items:flex-start;padding:14px 0;margin:0;border-top:1px solid rgba(246,241,231,.18);font-size:14.5px;color:rgba(246,241,231,.9)}
.info-list li:first-child{border-top:none}
.info-list i{color:var(--copper);font-size:15px;margin-top:4px;width:18px;text-align:center}
.info-list strong{display:block;color:var(--ivory);font-size:15px;margin-bottom:2px}

/* CTA 带 */
.cta-band{
  background:linear-gradient(120deg,var(--ink) 0%,var(--ink-2) 100%);
  border-radius:var(--r-lg);padding:44px 44px;color:var(--ivory);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  position:relative;overflow:hidden;box-shadow:var(--sh);
}
.cta-band::after{
  content:"";position:absolute;right:-60px;top:-60px;width:240px;height:240px;
  border:2px dashed rgba(217,121,65,.35);border-radius:50%;
}
.cta-band h2{color:var(--ivory);font-size:26px;margin:0 0 8px}
.cta-band p{color:rgba(246,241,231,.78);margin:0;font-size:15px}
.cta-band .actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}

/* 页脚 */
.site-footer{background:var(--ink);color:rgba(246,241,231,.8);padding:70px 0 0;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px;padding-bottom:44px}
.site-footer h4{color:var(--ivory);font-size:15px;font-family:var(--ff);letter-spacing:.08em;margin-bottom:16px}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:16px}
.footer-brand .brand-mark{border-color:var(--copper)}
.footer-brand strong{font-family:var(--ff-title);font-size:19px;color:var(--ivory);display:block;line-height:1.2}
.footer-brand span{font-size:11px;letter-spacing:.16em;color:rgba(246,241,231,.62)}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(246,241,231,.68);margin:0 0 12px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin:0 0 10px}
.footer-links a{color:rgba(246,241,231,.78);font-size:14px;transition:color .18s ease,padding-left .18s ease}
.footer-links a:hover{color:var(--copper);text-decoration:none;padding-left:4px}
.footer-contact{list-style:none;padding:0;margin:0}
.footer-contact li{font-size:14px;color:rgba(246,241,231,.72);margin-bottom:10px;display:flex;gap:10px;align-items:flex-start}
.footer-contact i{color:var(--copper);font-size:13px;margin-top:6px}
.footer-bottom{
  border-top:1px solid rgba(246,241,231,.16);
  padding:22px 0;display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,241,231,.56);
}

/* 响应式 */
@media (max-width:1199px){
  .section{padding:84px 0}
  .cat-grid{gap:16px}
}
@media (max-width:1023px){
  .nav-toggle{display:inline-flex}
  .nav-cta{display:none}
  .nav-links{
    display:none;
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:8px;
    padding:12px;background:var(--card);
    border:1px solid var(--line);border-radius:18px;
    box-shadow:var(--sh-hover);margin:0;
  }
  .nav-links.is-open{display:flex}
  .nav-item{width:100%;justify-content:flex-start;padding:12px 14px;font-size:14.5px}
  .service-grid,.case-grid{grid-template-columns:minmax(0,1fr)}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cat-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .flow-grid::before{display:none}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
  .contact-grid{grid-template-columns:minmax(0,1fr)}
  .hero-figure>img{min-height:340px}
}
@media (max-width:767px){
  body{font-size:16px}
  .container{padding:0 18px}
  .section{padding:60px 0}
  .section-tight{padding:52px 0}
  .hero{padding:34px 0 56px}
  .hero h1{font-size:clamp(30px,8vw,40px)}
  .hero-lead{font-size:16.5px}
  .hero-actions{gap:10px}
  .hero-actions .btn{width:100%}
  .hero-figure>img{min-height:280px}
  .posts-grid{grid-template-columns:minmax(0,1fr)}
  .cat-grid{grid-template-columns:minmax(0,1fr)}
  .stats{padding:58px 0}
  .stats-grid{gap:14px}
  .flow-grid{grid-template-columns:minmax(0,1fr)}
  .cta-band{padding:30px 24px;border-radius:18px}
  .cta-band h2{font-size:22px}
  .cta-band .actions{width:100%}
  .cta-band .actions .btn{width:100%}
  .form-card,.info-card{padding:22px}
  .footer-grid{grid-template-columns:minmax(0,1fr);padding-bottom:32px}
  .footer-bottom{flex-direction:column;gap:8px}
  .nav-card{padding:10px 12px;min-height:70px}
  .brand-text strong{font-size:16.5px}
}
@media (max-width:479px){
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .stat{padding:18px 14px}
  .stat-num{font-size:26px}
  .case-row{flex-direction:column;align-items:flex-start}
  .case-row img{width:100%;height:150px}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
}

/* roulang page: category1 */
:root{
  --ink:#1C2422;
  --ink-soft:#66706B;
  --green:#0E3B36;
  --green-lift:#14514A;
  --copper:#D97941;
  --copper-deep:#B85F2F;
  --ivory:#F6F1E7;
  --card:#FFFDF8;
  --surface:#EFE7D8;
  --line:#D8D1C4;
  --success:#2F7D5A;
  --error:#B54434;
  --r-lg:24px;
  --r-md:16px;
  --r-sm:12px;
  --r-xs:10px;
  --shadow:0 8px 24px rgba(20,35,32,.08);
  --shadow-hover:0 14px 34px rgba(20,35,32,.12);
  --sp-section:100px;
  --sp-section-md:72px;
  --sp-section-sm:56px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--ivory);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:inherit;text-decoration:none;}
a:hover{color:var(--copper-deep);}
button{font-family:inherit;cursor:pointer;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
:focus-visible{outline:3px solid rgba(217,121,65,.45);outline-offset:3px;border-radius:4px;}

.container{
  width:100%;
  max-width:1220px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--sp-section) 0;}
.section--tight{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:44px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;
  color:var(--copper-deep);font-weight:700;
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{
  content:"";width:26px;height:2px;background:var(--copper);display:inline-block;
}
.section-head h2{
  font-family:"Noto Serif SC","Songti SC",serif;
  font-size:clamp(26px,3vw,34px);
  line-height:1.25;
  color:var(--green);
  letter-spacing:.01em;
  margin-bottom:14px;
}
.section-head p{color:var(--ink-soft);font-size:16px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:48px;padding:0 26px;
  border-radius:12px;
  font-size:15px;font-weight:700;
  border:1px solid transparent;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn-primary{background:var(--green);color:var(--ivory);box-shadow:0 10px 22px rgba(14,59,54,.18);}
.btn-primary:hover{background:var(--green-lift);color:var(--ivory);transform:translateY(-1px);box-shadow:0 14px 28px rgba(14,59,54,.24);}
.btn-ghost{background:transparent;color:var(--copper-deep);border-color:var(--copper);}
.btn-ghost:hover{background:rgba(217,121,65,.14);color:var(--copper-deep);transform:translateY(-1px);}
.btn-light{background:var(--ivory);color:var(--green);}
.btn-light:hover{background:#fff;color:var(--green-lift);transform:translateY(-1px);}
.btn:active{transform:translateY(0);}

/* ============ 头部导航 ============ */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0;background:rgba(246,241,231,.86);backdrop-filter:blur(10px);}
.nav-card{
  display:flex;align-items:center;gap:20px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:20px;
  min-height:80px;
  padding:12px 18px;
  box-shadow:var(--shadow);
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand-mark{
  width:28px;height:28px;border-radius:8px;flex-shrink:0;
  border:2px solid var(--copper);
  background:linear-gradient(135deg,rgba(217,121,65,.28),transparent 62%);
  position:relative;
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;border:1.5px solid var(--green);border-radius:4px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-text strong{
  font-family:"Noto Serif SC","Songti SC",serif;
  font-size:19px;color:var(--green);letter-spacing:.06em;
}
.brand-text span{font-size:12px;color:var(--ink-soft);letter-spacing:.16em;}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto;flex-wrap:wrap;}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:10px 14px;border-radius:12px;
  font-size:14px;color:var(--ink);font-weight:500;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.nav-item i{font-size:14px;color:var(--ink-soft);transition:color .2s ease;}
.nav-item:hover{background:var(--surface);color:var(--green);border-color:var(--line);}
.nav-item:hover i{color:var(--copper-deep);}
.nav-item.is-active{
  background:rgba(217,121,65,.15);
  color:var(--copper-deep);
  border-color:rgba(217,121,65,.4);
  box-shadow:inset 0 -2px 0 var(--copper);
  font-weight:700;
}
.nav-item.is-active i{color:var(--copper-deep);}
.nav-cta{flex-shrink:0;}
.nav-cta .btn{min-height:44px;padding:0 20px;font-size:14px;}
.nav-toggle{
  display:none;margin-left:auto;
  width:46px;height:46px;border-radius:12px;
  background:var(--surface);border:1px solid var(--line);
  color:var(--green);font-size:17px;
}

/* ============ 面包屑 ============ */
.breadcrumb{padding:22px 0 0;}
.breadcrumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--ink-soft);}
.breadcrumb li{display:flex;align-items:center;gap:8px;}
.breadcrumb li::after{content:"/";color:var(--line);}
.breadcrumb li:last-child::after{display:none;}
.breadcrumb a{color:var(--ink-soft);border-bottom:1px solid transparent;transition:color .2s,border-color .2s;}
.breadcrumb a:hover{color:var(--copper-deep);border-color:var(--copper);}
.breadcrumb strong{color:var(--green);font-weight:700;}

/* ============ 压缩 Hero ============ */
.page-hero{
  margin-top:20px;
  border-radius:var(--r-lg);
  overflow:hidden;
  position:relative;
  min-height:236px;
  display:flex;align-items:center;
  background-image:linear-gradient(102deg,rgba(14,59,54,.92) 0%,rgba(14,59,54,.82) 52%,rgba(20,81,74,.72) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border:1px solid rgba(14,59,54,.5);
  box-shadow:var(--shadow);
}
.page-hero::after{
  content:"";position:absolute;right:-40px;top:-40px;width:280px;height:280px;
  border:1px solid rgba(246,241,231,.14);border-radius:50%;
  pointer-events:none;
}
.page-hero__inner{position:relative;z-index:2;padding:44px 46px;max-width:820px;}
.page-hero .tag{
  display:inline-block;padding:5px 14px;border-radius:999px;
  background:rgba(246,241,231,.14);color:#F6F1E7;
  border:1px solid rgba(246,241,231,.28);
  font-size:12.5px;letter-spacing:.12em;margin-bottom:16px;
}
.page-hero h1{
  font-family:"Noto Serif SC","Songti SC",serif;
  font-size:clamp(30px,3.6vw,44px);
  line-height:1.2;color:#FBF7EF;letter-spacing:.01em;
}
.page-hero p{margin-top:14px;color:rgba(246,241,231,.86);font-size:16.5px;max-width:660px;}

/* ============ 目录卡 ============ */
.dir-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.dir-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:30px 30px 26px;
  box-shadow:var(--shadow);
  display:flex;gap:20px;
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
  position:relative;
  overflow:hidden;
}
.dir-card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:3px;
  background:linear-gradient(90deg,var(--copper),rgba(217,121,65,0));
  opacity:0;transition:opacity .24s ease;
}
.dir-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(217,121,65,.45);}
.dir-card:hover::before{opacity:1;}
.dir-card__icon{
  flex-shrink:0;width:52px;height:52px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:rgba(14,59,54,.08);color:var(--green);font-size:20px;
  transition:background .24s ease,color .24s ease;
}
.dir-card:hover .dir-card__icon{background:var(--green);color:var(--ivory);}
.dir-card__body h3{
  font-size:20px;color:var(--green);font-weight:700;line-height:1.4;margin-bottom:9px;
}
.dir-card__body p{color:var(--ink-soft);font-size:15px;line-height:1.8;}
.dir-card__link{
  margin-top:14px;display:inline-flex;align-items:center;gap:7px;
  font-size:14px;font-weight:700;color:var(--copper-deep);
  border-bottom:1px solid transparent;transition:border-color .2s ease,gap .2s ease;
}
.dir-card__link i{font-size:12px;transition:transform .2s ease;}
.dir-card:hover .dir-card__link{border-color:var(--copper);}
.dir-card:hover .dir-card__link i{transform:translateX(3px);}

/* ============ 核对顺序 ============ */
.flow-band{
  background:var(--green);
  color:var(--ivory);
  border-radius:var(--r-lg);
  padding:56px 48px;
  position:relative;overflow:hidden;
}
.flow-band::before{
  content:"";position:absolute;inset:0;
  background-image:repeating-linear-gradient(90deg,rgba(246,241,231,.07) 0 1px,transparent 1px 96px);
  pointer-events:none;
}
.flow-band__head{position:relative;z-index:2;max-width:720px;margin-bottom:38px;}
.flow-band__head h2{
  font-family:"Noto Serif SC","Songti SC",serif;
  font-size:clamp(24px,2.6vw,32px);color:#FBF7EF;line-height:1.3;margin-bottom:12px;
}
.flow-band__head p{color:rgba(246,241,231,.78);font-size:15.5px;}
.flow-steps{
  position:relative;z-index:2;
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;
}
.flow-step{
  background:rgba(246,241,231,.07);
  border:1px solid rgba(246,241,231,.18);
  border-radius:var(--r-md);
  padding:26px 24px;
}
.flow-step .num{
  font-variant-numeric:tabular-nums;
  font-size:13px;letter-spacing:.2em;color:var(--copper);font-weight:700;display:block;margin-bottom:12px;
}
.flow-step h3{font-size:18px;color:#FBF7EF;margin-bottom:9px;font-weight:700;}
.flow-step p{font-size:14.5px;color:rgba(246,241,231,.78);line-height:1.8;}

/* ============ 图文说明块 ============ */
.split{
  display:grid;grid-template-columns:7fr 5fr;gap:40px;align-items:center;
}
.split__media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--r-md);
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.split__text h2{
  font-family:"Noto Serif SC","Songti SC",serif;
  font-size:clamp(24px,2.6vw,32px);color:var(--green);line-height:1.3;margin-bottom:16px;
}
.split__text p{color:var(--ink-soft);margin-bottom:14px;}
.check-list{margin-top:20px;display:grid;gap:12px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  font-size:15.5px;color:var(--ink);
}
.check-list i{color:var(--success);margin-top:6px;font-size:14px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:first-child{border-top:1px solid var(--line);}
.faq-q{
  width:100%;background:none;border:0;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:24px 2px;text-align:left;
  font-size:18px;font-weight:700;color:var(--green);line-height:1.6;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--copper-deep);}
.faq-q .faq-icon{
  flex-shrink:0;width:30px;height:30px;border-radius:50%;
  border:1px solid var(--line);display:flex;align-items:center;justify-content:center;
  color:var(--copper-deep);font-size:12px;transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.faq-item.is-open .faq-q .faq-icon{background:var(--copper);color:#fff;border-color:var(--copper);transform:rotate(180deg);}
.faq-a{display:none;padding:0 2px 26px;color:var(--ink-soft);font-size:15.5px;line-height:1.88;max-width:780px;}
.faq-item.is-open .faq-a{display:block;}

/* ============ CTA 带 ============ */
.cta-band{
  border-radius:var(--r-lg);
  padding:56px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  background-image:linear-gradient(100deg,rgba(14,59,54,.95),rgba(20,81,74,.86)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  border:1px solid rgba(14,59,54,.45);
  box-shadow:var(--shadow);
  color:var(--ivory);
}
.cta-band h2{
  font-family:"Noto Serif SC","Songti SC",serif;
  font-size:clamp(23px,2.5vw,30px);color:#FBF7EF;line-height:1.32;margin-bottom:12px;
}
.cta-band p{color:rgba(246,241,231,.82);font-size:15.5px;max-width:620px;}
.cta-band__actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  background:var(--green);
  color:rgba(246,241,231,.82);
  padding:72px 0 0;
  position:relative;
}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--copper),rgba(217,121,65,0));
}
.footer-grid{
  display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px;
  padding-bottom:52px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-mark{border-color:var(--copper);background:linear-gradient(135deg,rgba(217,121,65,.35),transparent 62%);}
.footer-brand .brand-mark::after{border-color:rgba(246,241,231,.75);}
.footer-brand strong{
  display:block;font-family:"Noto Serif SC","Songti SC",serif;
  font-size:19px;color:#FBF7EF;letter-spacing:.06em;line-height:1.3;
}
.footer-brand span{display:block;font-size:12px;letter-spacing:.16em;color:rgba(246,241,231,.62);}
.site-footer p{font-size:14.5px;line-height:1.85;color:rgba(246,241,231,.72);margin-bottom:12px;max-width:340px;}
.site-footer h4{
  font-size:15px;color:#FBF7EF;font-weight:700;margin-bottom:18px;letter-spacing:.04em;
}
.footer-links li{margin-bottom:11px;}
.footer-links a{
  font-size:14.5px;color:rgba(246,241,231,.74);
  border-bottom:1px solid transparent;transition:color .2s ease,border-color .2s ease;
}
.footer-links a:hover{color:var(--copper);border-color:var(--copper);}
.footer-contact li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:rgba(246,241,231,.74);margin-bottom:13px;
}
.footer-contact i{color:var(--copper);margin-top:6px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(246,241,231,.16);
  padding:22px 0 30px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,241,231,.6);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1199px){
  .nav-links{gap:2px;}
  .nav-item{padding:9px 11px;font-size:13.5px;}
  .nav-item i{display:none;}
}
@media screen and (max-width:1023px){
  :root{--sp-section:72px;}
  .section--tight{padding:52px 0;}
  .flow-steps{grid-template-columns:1fr;}
  .split{grid-template-columns:1fr;gap:28px;}
  .dir-grid{gap:20px;}
  .page-hero__inner{padding:38px 34px;}
  .flow-band{padding:44px 32px;}
  .cta-band{padding:44px 32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media screen and (max-width:899px){
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .nav-cta{display:none;}
  .nav-links{
    display:none;
    position:absolute;left:0;right:0;top:calc(100% + 10px);
    background:var(--card);
    border:1px solid var(--line);
    border-radius:20px;
    box-shadow:var(--shadow-hover);
    padding:14px;
    flex-direction:column;
    align-items:stretch;
    gap:8px;
    margin-left:0;
    z-index:80;
  }
  .nav-links.is-open{display:flex;}
  .nav-item{padding:13px 16px;font-size:15px;min-height:46px;justify-content:flex-start;}
  .nav-item i{display:inline-block;font-size:15px;}
  .nav-card{position:relative;}
  .dir-grid{grid-template-columns:1fr;}
  .page-hero{min-height:200px;}
  .page-hero h1{font-size:clamp(26px,5vw,34px);}
}
@media screen and (max-width:639px){
  :root{--sp-section:56px;}
  body{font-size:16px;}
  .container{padding:0 18px;}
  .nav-card{min-height:70px;padding:10px 14px;border-radius:16px;}
  .brand-text strong{font-size:17px;}
  .brand-text span{font-size:11px;}
  .page-hero__inner{padding:30px 22px;}
  .page-hero p{font-size:15px;}
  .dir-card{padding:24px 22px;flex-direction:column;gap:14px;}
  .dir-card__icon{width:46px;height:46px;font-size:18px;}
  .flow-band{padding:34px 22px;border-radius:var(--r-md);}
  .flow-step{padding:22px 20px;}
  .cta-band{padding:34px 22px;border-radius:var(--r-md);flex-direction:column;align-items:flex-start;}
  .cta-band__actions{width:100%;}
  .cta-band__actions .btn{width:100%;}
  .faq-q{font-size:16.5px;padding:20px 2px;}
  .footer-grid{grid-template-columns:1fr;gap:30px;padding-bottom:36px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .site-footer{margin-top:64px;padding-top:52px;}
}

/* roulang page: article */
:root{
  --green:#0E3B36;
  --green-2:#14514A;
  --copper:#D97941;
  --copper-2:#B85F2F;
  --ivory:#F6F1E7;
  --surface:#FFFDF8;
  --soft:#EFE7D8;
  --ink:#1C2422;
  --muted:#66706B;
  --line:#D8D1C4;
  --ok:#2F7D5A;
  --err:#B54434;
  --r-lg:24px;
  --r-md:18px;
  --r-sm:12px;
  --shadow:0 8px 24px rgba(20,35,32,.08);
  --shadow-hover:0 14px 34px rgba(20,35,32,.12);
  --container:1220px;
}
*,*::before,*::after{box-sizing:border-box}
html,body{margin:0;padding:0}
html{-webkit-text-size-adjust:100%}
body{
  font-family:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;line-height:1.85;color:var(--ink);background:var(--ivory);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:hover{color:var(--copper-2)}
button{font:inherit}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0;background:linear-gradient(180deg,rgba(246,241,231,.98) 60%,rgba(246,241,231,.86));backdrop-filter:blur(6px)}
.nav-card{
  display:flex;align-items:center;gap:18px;position:relative;
  background:var(--surface);border:1px solid var(--line);border-radius:20px;
  padding:10px 14px;box-shadow:var(--shadow);min-height:76px;
}
.brand{display:flex;align-items:center;gap:12px;padding:4px 8px;border-radius:14px;flex:none}
.brand:hover{background:var(--soft);color:var(--ink)}
.brand-mark{
  width:30px;height:30px;flex:none;border:2px solid var(--copper);border-radius:9px;position:relative;
}
.brand-mark::before{
  content:"";position:absolute;inset:6px;border:2px solid var(--green);border-radius:4px;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text strong{font-size:17px;letter-spacing:.04em;color:var(--green)}
.brand-text span{font-size:11.5px;letter-spacing:.14em;color:var(--muted)}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-item{
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
  padding:9px 13px;border-radius:12px;font-size:14px;font-weight:500;color:var(--ink);
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.nav-item i{font-size:13px;color:var(--copper-2);transition:color .2s ease}
.nav-item:hover{background:var(--soft);color:var(--green)}
.nav-item:hover i{color:var(--green)}
.nav-item.is-active{background:#F7E6DA;color:var(--copper-2);box-shadow:inset 0 -2px 0 var(--copper)}
.nav-item.is-active i{color:var(--copper-2)}
.nav-cta{margin-left:6px;flex:none}
.nav-mobile-cta{display:none}
.nav-toggle{
  display:none;align-items:center;justify-content:center;width:44px;height:44px;
  border:1px solid var(--line);border-radius:12px;background:var(--soft);color:var(--green);
  cursor:pointer;margin-left:auto;
}
.nav-toggle:focus-visible{outline:3px solid rgba(217,121,65,.35);outline-offset:2px}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;text-align:center;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn:focus-visible{outline:3px solid rgba(217,121,65,.35);outline-offset:2px}
.btn-primary{background:var(--green);color:#FBF7EE;border-color:var(--green)}
.btn-primary:hover{background:var(--green-2);color:#FFFFFF;transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-ghost{background:transparent;color:var(--copper-2);border-color:var(--copper)}
.btn-ghost:hover{background:#F7E6DA;color:var(--copper-2)}
.btn-accent{background:var(--copper);color:#2B1B10;border-color:var(--copper)}
.btn-accent:hover{background:var(--copper-2);color:#FFFFFF;border-color:var(--copper-2);transform:translateY(-1px)}
.btn-light{background:#F6F1E7;color:var(--green);border-color:#F6F1E7}
.btn-light:hover{background:#FFFFFF;color:var(--green-2)}
.btn-block{width:100%}

/* ---------- article head ---------- */
.page-hero{padding:34px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted);margin-bottom:20px}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--copper-2)}
.breadcrumb .sep{color:#BFB7A7}
.breadcrumb .current{color:var(--ink);max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.head-inner{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:40px 44px;box-shadow:var(--shadow)}
.pill{
  display:inline-flex;align-items:center;gap:6px;padding:5px 14px;border-radius:999px;
  background:#F7E6DA;color:var(--copper-2);font-size:13px;font-weight:600;letter-spacing:.02em;
}
.article-head h1{font-size:40px;line-height:1.28;margin:18px 0 14px;color:var(--green);letter-spacing:.01em}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:20px;font-size:13.5px;color:var(--muted)}
.meta-row span{display:inline-flex;align-items:center;gap:7px}
.meta-row i{color:var(--copper);font-size:13px}
.cover-wrap{
  margin-top:28px;border-radius:20px;overflow:hidden;border:1px solid var(--line);
  aspect-ratio:16/9;background:var(--soft);
}
.cover-wrap img{width:100%;height:100%;object-fit:cover}

/* ---------- layout ---------- */
.article-main{padding:48px 0 68px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:40px;align-items:start}
.article-panel{background:var(--surface);border:1px solid var(--line);border-radius:var(--r-lg);padding:44px;box-shadow:var(--shadow)}

.article-body{font-size:17px;line-height:1.9;color:var(--ink);word-wrap:break-word}
.article-body > *:first-child{margin-top:0}
.article-body h2{font-size:26px;line-height:1.4;margin:1.9em 0 .8em;padding-left:14px;border-left:4px solid var(--copper);color:var(--green)}
.article-body h3{font-size:21px;line-height:1.5;margin:1.6em 0 .6em;color:var(--green)}
.article-body h4{font-size:18px;margin:1.4em 0 .5em;color:var(--ink)}
.article-body p{margin:0 0 1.1em}
.article-body a{color:var(--copper-2);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:var(--green)}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:1.5em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin-bottom:.5em}
.article-body blockquote{
  margin:1.6em 0;padding:18px 22px;background:var(--soft);
  border-left:3px solid var(--copper);border-radius:0 14px 14px 0;color:#2C3A35;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:1.4em 0;width:100%}
.article-body figure{margin:1.6em 0}
.article-body figcaption{font-size:13px;color:var(--muted);text-align:center;margin-top:10px}
.article-body table{display:block;width:100%;overflow-x:auto;border-collapse:collapse;font-size:15px;margin:1.4em 0}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left;white-space:nowrap}
.article-body th{background:var(--soft);color:var(--green);font-weight:600}
.article-body code{background:var(--soft);padding:2px 6px;border-radius:6px;font-size:14px}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0}

.empty-state{text-align:center;padding:36px 12px}
.empty-state h2{font-size:26px;color:var(--green);margin-bottom:12px}
.empty-state p{color:var(--muted);font-size:15px;margin-bottom:24px}

.article-foot{
  margin-top:30px;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  background:var(--soft);border:1px solid var(--line);color:#3B4B45;font-size:13px;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.tag:hover{background:#F7E6DA;color:var(--copper-2);border-color:#E7C4AC}

/* ---------- sidebar ---------- */
.article-side{position:relative}
.side-sticky{position:sticky;top:104px;display:flex;flex-direction:column;gap:18px}
.side-card{background:var(--surface);border:1px solid var(--line);border-radius:20px;padding:24px;box-shadow:var(--shadow)}
.side-title{
  display:flex;align-items:center;gap:8px;font-size:16px;font-weight:700;color:var(--green);
  margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--line);
}
.side-title i{color:var(--copper);font-size:14px}
.side-list li + li{margin-top:14px;padding-top:14px;border-top:1px dashed var(--line)}
.side-list .cat{display:block;font-size:12px;color:var(--copper-2);letter-spacing:.02em}
.side-list .t{display:block;font-size:14.5px;line-height:1.6;font-weight:500;color:var(--ink);margin-top:4px}
.side-list .t:hover{color:var(--copper-2)}
.side-list .d{display:block;font-size:12px;color:var(--muted);margin-top:6px}
.side-guide{background:var(--green);border-color:var(--green);color:#EFE7D8}
.side-guide .side-title{color:#F6F1E7;border-bottom-color:rgba(239,231,216,.25)}
.side-guide .side-title i{color:var(--copper)}
.side-guide p{font-size:14px;line-height:1.8;color:rgba(246,241,231,.82);margin-bottom:18px}

/* ---------- related ---------- */
.related{padding:0 0 78px}
.section-head{margin-bottom:30px}
.section-head h2{font-size:32px;color:var(--green);letter-spacing:.01em}
.section-head p{color:var(--muted);margin-top:10px;font-size:15px}
.related-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px}
.related-card{
  display:flex;gap:18px;background:var(--surface);border:1px solid var(--line);border-radius:20px;
  padding:18px;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.related-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-hover);border-color:#E7C4AC;color:inherit}
.related-thumb{width:132px;height:100px;flex:none;border-radius:14px;overflow:hidden;background:var(--soft)}
.related-thumb img{width:100%;height:100%;object-fit:cover}
.related-body{min-width:0}
.related-body .cat{font-size:12px;color:var(--copper-2)}
.related-body h3{font-size:17px;line-height:1.5;margin:6px 0 8px;color:var(--green)}
.related-body p{font-size:13.5px;color:var(--muted);line-height:1.7}
.related-body .d{display:block;font-size:12px;color:var(--muted);margin-top:10px}

/* ---------- cta ---------- */
.cta-band{padding:0 0 78px}
.cta-inner{
  position:relative;overflow:hidden;border-radius:26px;padding:52px 56px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  background:var(--green);color:#F6F1E7;box-shadow:var(--shadow);
}
.cta-inner::before{
  content:"";position:absolute;inset:0;
  background:url(/assets/images/backpic/back-1.webp) center/cover no-repeat;opacity:.22;
}
.cta-inner > *{position:relative;z-index:1}
.cta-inner h2{font-size:30px;color:#FBF7EE;margin-bottom:12px;line-height:1.35}
.cta-inner p{font-size:15px;line-height:1.85;color:rgba(246,241,231,.85);max-width:640px}
.cta-inner .btn{flex:none}

/* ---------- footer ---------- */
.site-footer{background:var(--green);color:#EFE7D8;padding:64px 0 28px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand strong{display:block;font-size:17px;color:#FBF7EE;letter-spacing:.04em}
.footer-brand span{display:block;font-size:11.5px;letter-spacing:.14em;color:rgba(246,241,231,.62)}
.site-footer .brand-mark{border-color:var(--copper)}
.site-footer .brand-mark::before{border-color:#F6F1E7}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(246,241,231,.72);margin-bottom:12px}
.site-footer h4{font-size:15px;color:#FBF7EE;margin-bottom:16px;letter-spacing:.05em;font-weight:700}
.footer-links li + li{margin-top:10px}
.footer-links a{font-size:14px;color:rgba(246,241,231,.72)}
.footer-links a:hover{color:var(--copper)}
.footer-contact li{display:flex;gap:10px;font-size:14px;line-height:1.7;color:rgba(246,241,231,.72);margin-bottom:12px}
.footer-contact i{color:var(--copper);margin-top:5px;flex:none}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(239,231,216,.18);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13px;color:rgba(246,241,231,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:28px}
  .article-panel{padding:34px}
  .head-inner{padding:32px}
  .article-head h1{font-size:34px}
  .nav-item{padding:8px 10px;font-size:13.5px}
}
@media (max-width:1023px){
  .article-layout{grid-template-columns:1fr}
  .side-sticky{position:static}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:899px){
  .nav-links{
    display:none;position:absolute;left:0;right:0;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:6px;margin-left:0;
    background:var(--surface);border:1px solid var(--line);border-radius:20px;
    padding:14px;box-shadow:var(--shadow-hover);z-index:70;
  }
  .nav-links.is-open{display:flex}
  .nav-item{justify-content:flex-start;padding:12px 14px;font-size:14.5px}
  .nav-item.is-active{box-shadow:inset 3px 0 0 var(--copper),inset 0 0 0 0 transparent}
  .nav-cta{display:none}
  .nav-toggle{display:inline-flex}
  .nav-mobile-cta{display:flex;width:100%;margin-top:6px}
  .head-inner{padding:28px 24px}
  .article-head h1{font-size:30px}
  .article-panel{padding:28px 24px}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:36px 28px}
  .cta-inner h2{font-size:25px}
  .cta-inner .btn{width:100%}
  .related-grid{grid-template-columns:1fr}
  .breadcrumb .current{max-width:100%;white-space:normal}
}
@media (max-width:639px){
  .container{padding:0 16px}
  .nav-card{min-height:64px;padding:8px 10px;gap:10px}
  .brand-text strong{font-size:15.5px}
  .brand-text span{font-size:10.5px}
  .article-head h1{font-size:26px;line-height:1.35}
  .page-hero{padding-top:24px}
  .article-main{padding:32px 0 52px}
  .article-panel{padding:22px 18px;border-radius:20px}
  .article-body{font-size:16px;line-height:1.9}
  .article-body h2{font-size:22px}
  .article-body h3{font-size:19px}
  .article-foot{flex-direction:column;align-items:flex-start}
  .related-card{flex-direction:column}
  .related-thumb{width:100%;height:170px}
  .section-head h2{font-size:25px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;gap:8px}
  .cta-band,.related{padding-bottom:52px}
}

/* roulang page: category2 */
:root{
  --green:#0E3B36;
  --green-2:#14514A;
  --copper:#D97941;
  --copper-2:#B85F2F;
  --ivory:#F6F1E7;
  --card:#FFFDF8;
  --soft:#EFE7D8;
  --ink:#1C2422;
  --muted:#66706B;
  --line:#D8D1C4;
  --ok:#2F7D5A;
  --err:#B54434;
  --r-xl:24px;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-1:0 8px 24px rgba(20,35,32,.08);
  --shadow-2:0 14px 34px rgba(20,35,32,.12);
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","STSong",serif;
  --sp-section:100px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--ink);
  background:var(--ivory);
  font-feature-settings:"tnum" 1;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--green-2);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--copper-2);text-decoration:underline;text-underline-offset:3px;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.28;color:var(--green);letter-spacing:.2px;}
button{font-family:inherit;cursor:pointer;}
:focus-visible{outline:3px solid rgba(217,121,65,.35);outline-offset:2px;border-radius:6px;}

.container{
  width:100%;
  max-width:1240px;
  margin:0 auto;
  padding:0 24px;
}
.section{padding:var(--sp-section) 0;}
.section--tight{padding:64px 0;}
.section-head{max-width:780px;margin-bottom:44px;}
.section-head h2{font-size:clamp(26px,3vw,34px);margin-bottom:14px;font-family:var(--font-serif);}
.section-head p{color:var(--muted);font-size:16px;margin:0;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--copper-2);
  text-transform:uppercase;font-weight:700;margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--copper);border-radius:2px;}

/* ============ 顶部导航 ============ */
.site-header{position:sticky;top:12px;z-index:60;padding:0;}
.nav-card{
  display:flex;align-items:center;gap:16px;
  min-height:80px;padding:12px 18px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
  position:relative;
}
.brand{display:inline-flex;align-items:center;gap:12px;flex:0 0 auto;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:30px;height:30px;border-radius:9px;
  border:2px solid var(--green);
  position:relative;flex:0 0 auto;
  background:linear-gradient(135deg,rgba(217,121,65,.22),rgba(20,81,74,.12));
}
.brand-mark::after{
  content:"";position:absolute;inset:7px;border-radius:3px;
  border:2px solid var(--copper);
}
.brand-text{display:flex;flex-direction:column;line-height:1.16;}
.brand-text strong{font-size:17px;color:var(--green);letter-spacing:1.5px;font-family:var(--font-serif);}
.brand-text span{font-size:12px;color:var(--muted);letter-spacing:2px;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;flex-wrap:nowrap;}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  min-height:44px;padding:9px 11px;border-radius:var(--r-sm);
  font-size:13.5px;color:var(--ink);font-weight:500;white-space:nowrap;
  transition:background .2s ease,color .2s ease,box-shadow .2s ease;
}
.nav-item i{font-size:13px;color:var(--copper-2);opacity:.85;}
.nav-item:hover{background:var(--soft);text-decoration:none;color:var(--green);}
.nav-item.is-active{
  background:rgba(217,121,65,.16);
  color:var(--green);
  font-weight:700;
  box-shadow:inset 0 -2px 0 var(--copper);
}
.nav-cta{flex:0 0 auto;margin-left:8px;}
.nav-toggle{
  display:none;margin-left:auto;
  width:46px;height:46px;border-radius:12px;
  border:1px solid var(--line);background:var(--soft);color:var(--green);
  font-size:17px;align-items:center;justify-content:center;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  min-height:46px;padding:12px 22px;
  border-radius:var(--r-sm);border:1.5px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.3px;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn:hover{text-decoration:none;transform:translateY(-1px);}
.btn-primary{background:var(--green);color:var(--ivory);box-shadow:var(--shadow-1);}
.btn-primary:hover{background:var(--green-2);color:var(--ivory);box-shadow:var(--shadow-2);}
.btn-ghost{background:transparent;color:var(--copper-2);border-color:var(--copper);}
.btn-ghost:hover{background:rgba(217,121,65,.14);color:var(--copper-2);}
.btn-light{background:var(--ivory);color:var(--green);}
.btn-light:hover{background:#fff;color:var(--green-2);}
.btn-outline-light{background:transparent;color:var(--ivory);border-color:rgba(246,241,231,.55);}
.btn-outline-light:hover{background:rgba(246,241,231,.14);color:var(--ivory);}
.btn-sm{min-height:40px;padding:9px 16px;font-size:14px;}

/* ============ 标签 ============ */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 13px;border-radius:999px;
  font-size:12.5px;font-weight:600;letter-spacing:.4px;
  background:var(--soft);color:var(--green-2);
  border:1px solid var(--line);
}
.tag--copper{background:rgba(217,121,65,.16);color:var(--copper-2);border-color:rgba(217,121,65,.35);}
.tag--green{background:rgba(20,81,74,.1);color:var(--green-2);}

/* ============ Hero ============ */
.page-hero{
  position:relative;overflow:hidden;
  margin-top:22px;
  border-radius:var(--r-xl);
  background-image:linear-gradient(96deg,rgba(14,59,54,.94) 0%,rgba(14,59,54,.84) 52%,rgba(14,59,54,.72) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  color:var(--ivory);
  border:1px solid rgba(246,241,231,.16);
}
.page-hero::after{
  content:"";position:absolute;right:-40px;top:-40px;width:320px;height:320px;
  border:1px solid rgba(246,241,231,.16);border-radius:50%;
  pointer-events:none;
}
.page-hero__inner{padding:52px 48px;max-width:860px;position:relative;z-index:2;}
.crumbs{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13.5px;color:rgba(246,241,231,.72);margin-bottom:20px;}
.crumbs a{color:rgba(246,241,231,.9);}
.crumbs a:hover{color:#fff;}
.crumbs span.sep{opacity:.55;}
.page-hero h1{
  color:var(--ivory);font-size:clamp(30px,3.6vw,44px);
  margin-bottom:16px;font-family:var(--font-serif);line-height:1.2;
}
.page-hero p{color:rgba(246,241,231,.86);font-size:16.5px;max-width:660px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 指标带 ============ */
.metrics{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;margin-top:34px;}
.metric-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-md);
  padding:22px 20px;box-shadow:var(--shadow-1);
  transition:box-shadow .25s ease,transform .25s ease;
}
.metric-card:hover{box-shadow:var(--shadow-2);transform:translateY(-2px);}
.metric-card .num{
  font-size:26px;font-weight:700;color:var(--copper-2);
  font-variant-numeric:tabular-nums;letter-spacing:.5px;display:block;margin-bottom:6px;
}
.metric-card h3{font-size:16px;margin-bottom:6px;}
.metric-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.7;}

/* ============ 图文交替 ============ */
.split{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center;}
.split--reverse{grid-template-columns:5fr 7fr;}
.split__media{position:relative;}
.split__media img{
  width:100%;aspect-ratio:16/11;object-fit:cover;
  border-radius:var(--r-lg);border:1px solid var(--line);
  box-shadow:var(--shadow-1);
}
.split__badge{
  position:absolute;left:18px;bottom:18px;
  background:rgba(14,59,54,.92);color:var(--ivory);
  padding:9px 16px;border-radius:999px;font-size:13px;font-weight:600;
  letter-spacing:.5px;backdrop-filter:blur(2px);
}
.split__body h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:16px;font-family:var(--font-serif);}
.split__body p{color:var(--muted);font-size:16px;}
.check-list{margin:22px 0 26px;display:grid;gap:12px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:13px 16px;font-size:15px;color:var(--ink);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.check-list li:hover{border-color:rgba(217,121,65,.45);box-shadow:var(--shadow-1);}
.check-list i{color:var(--ok);margin-top:5px;font-size:14px;}

/* ============ 流程 ============ */
.flow-wrap{background:var(--card);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.flow{display:grid;grid-template-columns:repeat(3,1fr);gap:26px;position:relative;}
.flow::before{
  content:"";position:absolute;top:38px;left:8%;right:8%;height:1px;
  background:repeating-linear-gradient(90deg,var(--line) 0 8px,transparent 8px 16px);
}
.flow-step{
  position:relative;background:var(--ivory);
  border:1px solid var(--line);border-radius:var(--r-md);
  padding:26px 22px;box-shadow:var(--shadow-1);
  transition:transform .25s ease,box-shadow .25s ease;
}
.flow-step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.flow-step .step-no{
  display:inline-flex;align-items:center;justify-content:center;
  width:46px;height:46px;border-radius:14px;
  background:var(--green);color:var(--ivory);
  font-size:16px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:18px;
}
.flow-step h3{font-size:19px;margin-bottom:10px;}
.flow-step p{font-size:14.5px;color:var(--muted);margin:0;}

/* ============ 场景双卡 ============ */
.duo{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.scene-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--shadow-1);
  display:flex;flex-direction:column;
  transition:transform .25s ease,box-shadow .25s ease;
}
.scene-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.scene-card__media{position:relative;}
.scene-card__media img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.scene-card__media .tag{position:absolute;left:16px;top:16px;background:rgba(255,253,248,.94);border-color:rgba(217,121,65,.4);color:var(--copper-2);}
.scene-card__body{padding:26px 24px 28px;display:flex;flex-direction:column;flex:1;}
.scene-card__body h3{font-size:21px;margin-bottom:12px;}
.scene-card__body p{font-size:15px;color:var(--muted);margin-bottom:20px;}
.text-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14.5px;font-weight:700;color:var(--copper-2);margin-top:auto;
}
.text-link:hover{text-decoration:none;color:var(--green);}
.text-link i{transition:transform .2s ease;}
.text-link:hover i{transform:translateX(4px);}

/* ============ FAQ ============ */
.faq{max-width:900px;margin:0 auto;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:0;text-align:left;
  padding:22px 4px;font-size:17px;font-weight:600;color:var(--green);line-height:1.6;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--copper-2);}
.faq-q .faq-icon{
  flex:0 0 auto;width:30px;height:30px;border-radius:50%;
  border:1px solid var(--line);display:inline-flex;align-items:center;justify-content:center;
  color:var(--copper-2);font-size:12px;transition:transform .25s ease,background .2s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:rgba(217,121,65,.14);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .35s ease;}
.faq-a p{padding:0 4px 24px;margin:0;font-size:15.5px;color:var(--muted);line-height:1.85;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-xl);
  background-image:linear-gradient(100deg,rgba(14,59,54,.96),rgba(20,81,74,.86)),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
  color:var(--ivory);
  padding:56px 48px;
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
  border:1px solid rgba(246,241,231,.14);
}
.cta-band h2{color:var(--ivory);font-size:clamp(24px,2.7vw,32px);margin-bottom:12px;font-family:var(--font-serif);}
.cta-band p{color:rgba(246,241,231,.84);margin:0;max-width:560px;font-size:15.5px;}
.cta-band .hero-actions{flex:0 0 auto;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:var(--sp-section);
  background:var(--green);
  color:rgba(246,241,231,.82);
  padding:72px 0 30px;
  border-top:4px solid var(--copper);
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-mark{border-color:rgba(246,241,231,.8);background:linear-gradient(135deg,rgba(217,121,65,.4),rgba(246,241,231,.08));}
.footer-brand .brand-mark::after{border-color:var(--copper);}
.footer-brand strong{display:block;color:var(--ivory);font-size:17px;letter-spacing:1.5px;font-family:var(--font-serif);}
.footer-brand span{font-size:12px;letter-spacing:2px;color:rgba(246,241,231,.7);}
.site-footer p{font-size:14px;line-height:1.8;color:rgba(246,241,231,.72);margin-bottom:10px;}
.site-footer h4{font-size:15px;color:var(--ivory);margin-bottom:18px;letter-spacing:1px;}
.footer-links{display:grid;gap:11px;}
.footer-links a{color:rgba(246,241,231,.78);font-size:14.5px;}
.footer-links a:hover{color:var(--copper);text-decoration:none;}
.footer-contact{display:grid;gap:13px;font-size:14.5px;color:rgba(246,241,231,.78);}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;}
.footer-contact i{color:var(--copper);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:48px;padding-top:22px;
  border-top:1px solid rgba(246,241,231,.18);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,241,231,.62);
}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  :root{--sp-section:80px;}
  .nav-item{padding:8px 9px;font-size:12.5px;}
  .split,.split--reverse{gap:32px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:32px;}
  .footer-grid > div:last-child{grid-column:1 / -1;}
}
@media (max-width:899px){
  :root{--sp-section:64px;}
  .nav-links{
    position:absolute;top:calc(100% + 10px);left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:8px;
    background:var(--card);border:1px solid var(--line);border-radius:var(--r-lg);
    padding:16px;box-shadow:var(--shadow-2);
    max-height:70vh;overflow:auto;
  }
  .nav-links.is-open{display:flex;}
  .nav-item{font-size:15px;justify-content:flex-start;padding:12px 14px;min-height:48px;}
  .nav-item.is-active{box-shadow:inset 3px 0 0 var(--copper);}
  .nav-cta{display:none;}
  .nav-toggle{display:inline-flex;}
  .page-hero__inner{padding:38px 26px;}
  .metrics{grid-template-columns:1fr 1fr;gap:16px;}
  .split,.split--reverse{grid-template-columns:1fr;gap:26px;}
  .split--reverse .split__media{order:-1;}
  .flow{grid-template-columns:1fr;}
  .flow::before{display:none;}
  .duo{grid-template-columns:1fr;}
  .cta-band{padding:40px 26px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .footer-grid > div:first-child{grid-column:1 / -1;}
}
@media (max-width:639px){
  body{font-size:16px;}
  :root{--sp-section:52px;}
  .container{padding:0 16px;}
  .nav-card{padding:10px 12px;min-height:72px;border-radius:16px;}
  .brand-text strong{font-size:15.5px;}
  .brand-text span{font-size:11px;}
  .page-hero{margin-top:16px;border-radius:18px;}
  .page-hero__inner{padding:30px 20px 34px;}
  .page-hero h1{font-size:32px;}
  .hero-actions{flex-direction:column;align-items:stretch;}
  .hero-actions .btn{width:100%;}
  .metrics{grid-template-columns:1fr 1fr;gap:12px;}
  .metric-card{padding:18px 14px;}
  .metric-card .num{font-size:22px;}
  .metric-card h3{font-size:15px;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .footer-grid > div:first-child{grid-column:auto;}
  .faq-q{font-size:16px;padding:18px 2px;}
  .cta-band{padding:32px 20px;}
  .cta-band .hero-actions{width:100%;}
  .section-head{margin-bottom:30px;}
}

/* roulang page: category3 */
:root{
  --brand:#0E3B36;
  --brand-light:#14514A;
  --accent:#D97941;
  --accent-dark:#B85F2F;
  --bg:#F6F1E7;
  --card:#FFFDF8;
  --surface:#EFE7D8;
  --text:#1C2422;
  --muted:#66706B;
  --border:#D8D1C4;
  --ok:#2F7D5A;
  --err:#B54434;
  --radius-lg:22px;
  --radius:16px;
  --radius-sm:12px;
  --shadow:0 8px 24px rgba(20,35,32,.08);
  --shadow-hover:0 14px 34px rgba(20,35,32,.12);
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC","SimSun",serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,h5,h6{font-family:var(--font-sans);color:var(--text);margin:0 0 .6em;font-weight:700;line-height:1.3}
h1{font-family:var(--font-serif);letter-spacing:.5px}
p{margin:0 0 1em}
img{max-width:100%;height:auto;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent-dark)}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;border:0;background:none;cursor:pointer}
button:focus-visible,a:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:none;box-shadow:0 0 0 3px rgba(217,121,65,.35);border-radius:10px;
}
.container{width:100%;max-width:1220px;margin:0 auto;padding:0 24px}
.section{padding:64px 0}
.section--tight{padding:44px 0}
@media (min-width:900px){
  .section{padding:92px 0}
  .section--tight{padding:56px 0}
}

/* ---------- 头部与导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;padding:12px 0 4px;background:linear-gradient(180deg,rgba(246,241,231,.96) 60%,rgba(246,241,231,0))}
.nav-card{
  display:flex;align-items:center;gap:18px;
  background:var(--card);
  border:1px solid var(--border);
  border-radius:20px;
  box-shadow:var(--shadow);
  padding:10px 16px;
  min-height:76px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:30px;height:30px;border:2px solid var(--accent);border-radius:9px;position:relative;flex:0 0 auto;
}
.brand-mark::before{
  content:"";position:absolute;left:6px;top:6px;width:9px;height:9px;border-top:2px solid var(--accent);border-left:2px solid var(--accent);
}
.brand-mark::after{
  content:"";position:absolute;right:6px;bottom:6px;width:9px;height:9px;border-bottom:2px solid var(--accent);border-right:2px solid var(--accent);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-text strong{font-size:18px;letter-spacing:1px;color:var(--brand)}
.brand-text span{font-size:12.5px;color:var(--muted);letter-spacing:2.5px}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center;margin:0;padding:0;list-style:none;border:0;background:none;position:static;transform:none}
.nav-item{
  display:inline-flex;align-items:center;gap:7px;
  padding:10px 13px;border-radius:12px;
  font-size:14px;color:var(--text);white-space:nowrap;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.nav-item i{font-size:14px;color:var(--muted);transition:color .2s ease}
.nav-item:hover{background:var(--surface);color:var(--brand);transform:translateY(-1px)}
.nav-item:hover i{color:var(--accent-dark)}
.nav-item.is-active{
  background:rgba(217,121,65,.15);
  color:var(--accent-dark);
  border-color:rgba(217,121,65,.35);
  box-shadow:inset 0 -2px 0 var(--accent);
}
.nav-item.is-active i{color:var(--accent-dark)}
.nav-cta{flex:0 0 auto}
.nav-toggle{display:none;width:44px;height:44px;border-radius:12px;border:1px solid var(--border);background:var(--surface);color:var(--brand);align-items:center;justify-content:center;font-size:17px}
.nav-mobile-cta{display:none}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 22px;border-radius:12px;
  font-size:15px;font-weight:600;line-height:1.2;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--brand);color:#F6F1E7;box-shadow:0 6px 16px rgba(14,59,54,.18)}
.btn-primary:hover{background:var(--brand-light);color:#F6F1E7;transform:translateY(-1px);box-shadow:var(--shadow-hover)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;border-color:var(--accent);color:var(--accent-dark)}
.btn-ghost:hover{background:rgba(217,121,65,.14);color:var(--accent-dark);transform:translateY(-1px)}
.btn-light{background:var(--card);color:var(--brand);border-color:var(--border)}
.btn-light:hover{background:#fff;color:var(--brand-light);transform:translateY(-1px);box-shadow:var(--shadow)}
.btn-block{width:100%}

/* ---------- 分类页 Hero ---------- */
.page-hero{
  position:relative;
  margin-top:18px;
  padding:52px 0 48px;
  min-height:200px;
  color:#F6F1E7;
  background-image:linear-gradient(115deg,rgba(14,59,54,.92) 0%,rgba(14,59,54,.82) 55%,rgba(20,81,74,.76) 100%),url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid rgba(20,35,32,.15);
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:repeating-linear-gradient(90deg,rgba(217,121,65,.55) 0 28px,transparent 28px 56px);
}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:rgba(246,241,231,.75);margin-bottom:16px}
.breadcrumb a{color:rgba(246,241,231,.86)}
.breadcrumb a:hover{color:#F0C7A6}
.breadcrumb i{font-size:10px;opacity:.65}
.page-hero h1{
  color:#F6F1E7;
  font-size:clamp(28px,3.6vw,42px);
  line-height:1.22;
  margin:0 0 14px;
  max-width:900px;
}
.page-hero p{
  max-width:720px;
  color:rgba(246,241,231,.85);
  font-size:16.5px;
  margin:0;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;
  font-size:13px;color:rgba(246,241,231,.92);
  border:1px solid rgba(246,241,231,.28);
  background:rgba(246,241,231,.08);
}
.hero-tag i{color:#E5A47B;font-size:12px}

/* ---------- 快速联系卡 ---------- */
.quick-card{
  display:grid;grid-template-columns:1.35fr .95fr;gap:0;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow);overflow:hidden;
}
.quick-main{padding:32px 34px}
.quick-side{
  padding:32px 30px;
  background:linear-gradient(160deg,rgba(14,59,54,.96),rgba(20,81,74,.9)),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
  color:#F6F1E7;display:flex;flex-direction:column;justify-content:center;
}
.eyebrow{display:inline-block;font-size:12.5px;letter-spacing:3px;color:var(--accent-dark);font-weight:700;margin-bottom:10px}
.quick-main h2{font-size:clamp(22px,2.2vw,28px);margin-bottom:12px}
.quick-main p{color:var(--muted);font-size:15.5px;margin-bottom:20px}
.quick-actions{display:flex;flex-wrap:wrap;gap:12px}
.quick-side h3{color:#F6F1E7;font-size:17px;margin-bottom:14px}
.quick-side ul li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(246,241,231,.84);padding:7px 0}
.quick-side ul li i{color:#E5A47B;margin-top:4px;font-size:13px}

/* ---------- 帮助流程布局 ---------- */
.help-layout{display:grid;grid-template-columns:274px minmax(0,1fr);gap:34px;align-items:start}
.anchor-nav{
  position:sticky;top:112px;
  background:var(--card);border:1px solid var(--border);border-radius:var(--radius);
  padding:22px 18px;box-shadow:var(--shadow);
}
.anchor-title{font-size:13px;letter-spacing:2px;color:var(--muted);margin:0 0 12px;padding-left:10px}
.anchor-nav a{
  display:flex;align-items:center;gap:10px;
  padding:10px 12px;border-radius:10px;
  font-size:14.5px;color:var(--text);
  border-left:2px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.anchor-nav a i{font-size:12px;color:var(--accent-dark);opacity:.8}
.anchor-nav a:hover{background:var(--surface);color:var(--brand)}
.anchor-nav a.is-current{background:rgba(217,121,65,.13);color:var(--accent-dark);border-left-color:var(--accent);font-weight:600}
.anchor-nav .anchor-cta{margin-top:14px;justify-content:center;background:var(--brand);color:#F6F1E7;border-left:0;font-weight:600}
.anchor-nav .anchor-cta:hover{background:var(--brand-light);color:#F6F1E7}

.section-head{margin-bottom:28px}
.section-head h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:12px}
.section-head p{color:var(--muted);max-width:760px;font-size:16px;margin:0}

/* ---------- 手风琴 ---------- */
.accordion{border-top:1px solid var(--border)}
.acc-item{border-bottom:1px solid var(--border)}
.acc-btn{
  width:100%;display:flex;align-items:center;gap:14px;
  padding:20px 4px;text-align:left;
  font-size:17.5px;font-weight:600;color:var(--text);line-height:1.6;
  transition:color .2s ease;
}
.acc-btn:hover{color:var(--brand-light)}
.acc-idx{
  flex:0 0 auto;width:38px;height:38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:var(--surface);color:var(--accent-dark);
  font-size:13.5px;font-weight:700;font-variant-numeric:tabular-nums;
}
.acc-btn .acc-label{flex:1 1 auto}
.acc-btn .acc-icon{flex:0 0 auto;color:var(--accent-dark);font-size:15px;transition:transform .25s ease}
.acc-item.is-open .acc-btn{color:var(--brand)}
.acc-item.is-open .acc-idx{background:var(--accent);color:#FFF8F1}
.acc-panel{display:none;padding:0 4px 22px 52px}
.acc-item.is-open .acc-panel{display:block;animation:fadeSlide .28s ease}
@keyframes fadeSlide{from{opacity:0;transform:translateY(-4px)}to{opacity:1;transform:translateY(0)}}
.acc-panel p{color:var(--muted);font-size:15.5px;line-height:1.85;margin:0 0 10px}
.acc-panel p:last-child{margin-bottom:0}
.acc-panel strong{color:var(--text)}

/* ---------- 步骤 ---------- */
.step-block{margin-top:48px;background:var(--card);border:1px solid var(--border);border-radius:var(--radius-lg);padding:30px 32px;box-shadow:var(--shadow)}
.step-block h3{font-size:21px;margin-bottom:6px}
.step-block > p{color:var(--muted);font-size:15px;margin-bottom:26px}
.step-row{display:grid;grid-template-columns:64px minmax(0,1fr);gap:16px;padding:18px 0;border-top:1px dashed var(--border)}
.step-row:first-of-type{border-top:0;padding-top:0}
.step-num{
  font-family:var(--font-serif);font-size:30px;line-height:1;color:var(--accent);
  font-variant-numeric:tabular-nums;
}
.step-body h4{font-size:16.5px;margin:0 0 6px}
.step-body p{color:var(--muted);font-size:15px;margin:0}

/* ---------- 图片卡 ---------- */
.media-card{margin:34px 0 0;border-radius:var(--radius);overflow:hidden;border:1px solid var(--border);background:var(--card);box-shadow:var(--shadow)}
.media-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.media-card figcaption{padding:14px 20px;font-size:13.5px;color:var(--muted);border-top:1px solid var(--border)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px}
.faq-list{border-top:1px solid var(--border);margin-top:26px}
.faq-item{border-bottom:1px solid var(--border)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:19px 2px;text-align:left;font-size:17px;font-weight:600;line-height:1.6;color:var(--text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--brand-light)}
.faq-q i{color:var(--accent-dark);font-size:14px;transition:transform .25s ease;flex:0 0 auto}
.faq-item.is-open .faq-q{color:var(--brand)}
.faq-a{display:none;padding:0 2px 20px}
.faq-item.is-open .faq-a{display:block;animation:fadeSlide .28s ease}
.faq-a p{font-size:15.5px;color:var(--muted);margin:0}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(115deg,rgba(14,59,54,.97),rgba(20,81,74,.9)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  color:#F6F1E7;
  border-radius:var(--radius-lg);
  padding:44px 46px;
  display:grid;grid-template-columns:minmax(0,1fr) auto;gap:28px;align-items:center;
  box-shadow:var(--shadow);
}
.cta-band h2{color:#F6F1E7;font-size:clamp(22px,2.4vw,30px);margin-bottom:10px}
.cta-band p{color:rgba(246,241,231,.85);margin:0;max-width:640px;font-size:15.5px}
.cta-band .btn-group{display:flex;flex-wrap:wrap;gap:12px}
.cta-band .btn-ghost{border-color:rgba(246,241,231,.6);color:#F6F1E7}
.cta-band .btn-ghost:hover{background:rgba(246,241,231,.14);color:#F6F1E7}

/* ---------- 分类胶囊 / 返回 ---------- */
.related-block{display:grid;grid-template-columns:minmax(0,1fr) auto;gap:24px;align-items:center}
.pill-group{display:flex;flex-wrap:wrap;gap:12px}
.pill{
  display:inline-flex;align-items:center;gap:9px;
  padding:11px 20px;border-radius:999px;
  background:var(--card);border:1px solid var(--border);
  font-size:14.5px;color:var(--text);
  min-height:44px;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.pill i{color:var(--accent-dark);font-size:13px}
.pill:hover{background:var(--surface);color:var(--brand);border-color:var(--accent);transform:translateY(-1px);box-shadow:var(--shadow)}
.back-links{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:64px;
  background:linear-gradient(180deg,#0E3B36 0%,#0B302C 100%);
  color:rgba(246,241,231,.86);
  padding:60px 0 0;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-mark{border-color:rgba(246,241,231,.7)}
.footer-brand .brand-mark::before,.footer-brand .brand-mark::after{border-color:var(--accent)}
.footer-brand strong{display:block;color:#F6F1E7;font-size:17px;letter-spacing:1px;line-height:1.3}
.footer-brand span{display:block;color:rgba(246,241,231,.62);font-size:12.5px;letter-spacing:2.5px}
.site-footer p{font-size:14.5px;color:rgba(246,241,231,.68);line-height:1.85;margin:0 0 12px}
.site-footer h4{color:#F6F1E7;font-size:15px;letter-spacing:1px;margin:0 0 16px}
.footer-links li{margin-bottom:10px}
.footer-links a{color:rgba(246,241,231,.78);font-size:14.5px;transition:color .2s ease,padding-left .2s ease}
.footer-links a:hover{color:#F0C7A6;padding-left:4px}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:14.5px;color:rgba(246,241,231,.78);margin-bottom:12px;line-height:1.7}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  border-top:1px solid rgba(246,241,231,.16);
  padding:20px 0 26px;font-size:13px;color:rgba(246,241,231,.6);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .help-layout{grid-template-columns:250px minmax(0,1fr);gap:26px}
  .nav-item{padding:9px 10px;font-size:13.5px}
}
@media (max-width:1023px){
  .quick-card{grid-template-columns:1fr}
  .help-layout{grid-template-columns:1fr}
  .anchor-nav{position:static;display:flex;flex-wrap:wrap;gap:8px;padding:14px}
  .anchor-title{width:100%;margin-bottom:6px}
  .anchor-nav a{border-left:0;border:1px solid var(--border);background:var(--card);padding:9px 14px;border-radius:999px;font-size:13.5px}
  .anchor-nav .anchor-cta{width:100%;margin-top:6px;border-radius:12px}
  .cta-band{grid-template-columns:1fr;padding:36px 30px}
  .related-block{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:899px){
  .nav-toggle{display:inline-flex;margin-left:auto}
  .nav-cta{display:none}
  .nav-links{
    display:none;width:100%;flex-direction:row;flex-wrap:wrap;
    justify-content:flex-start;gap:8px;
    order:4;margin-top:12px;padding-top:14px;border-top:1px solid var(--border);
  }
  .nav-links.is-open{display:grid;grid-template-columns:1fr 1fr;gap:8px}
  .nav-item{
    justify-content:flex-start;border:1px solid var(--border);background:var(--card);
    padding:12px 14px;font-size:13.5px;border-radius:12px;min-height:44px;
  }
  .nav-links.is-open .nav-mobile-cta{display:flex;grid-column:1/-1;justify-content:center;background:var(--brand);color:#F6F1E7;border-color:var(--brand);font-weight:600}
  .nav-links.is-open .nav-mobile-cta:hover{background:var(--brand-light);color:#F6F1E7}
  .page-hero{margin-top:12px;padding:38px 0 34px}
  .quick-main{padding:26px 24px}
  .quick-side{padding:26px 24px}
  .step-block{padding:24px 22px}
  .acc-panel{padding-left:4px}
}
@media (max-width:639px){
  .container{padding:0 18px}
  body{font-size:16px}
  .nav-card{padding:10px 12px;gap:10px;border-radius:16px}
  .brand-text strong{font-size:16px}
  .brand-text span{font-size:11.5px;letter-spacing:2px}
  .nav-links.is-open{grid-template-columns:1fr 1fr}
  .section{padding:52px 0}
  .page-hero h1{font-size:clamp(23px,6.4vw,30px)}
  .page-hero p{font-size:15px}
  .hero-tags{gap:8px;margin-top:18px}
  .hero-tag{font-size:12px;padding:6px 11px}
  .step-row{grid-template-columns:44px minmax(0,1fr);gap:12px}
  .step-num{font-size:24px}
  .acc-btn{font-size:15.5px;gap:11px;padding:17px 2px}
  .acc-idx{width:32px;height:32px;border-radius:9px;font-size:12.5px}
  .faq-q{font-size:15.5px}
  .quick-actions .btn{width:100%}
  .cta-band{padding:30px 22px;border-radius:18px}
  .cta-band .btn-group{width:100%}
  .cta-band .btn-group .btn{width:100%}
  .footer-grid{grid-template-columns:1fr;gap:26px;padding-bottom:34px}
  .footer-bottom{flex-direction:column;gap:6px}
  .pill{width:100%;justify-content:center}
  .back-links .btn{width:100%}
  .media-card figcaption{font-size:12.5px}
}

/* roulang page: category4 */
:root{
  --ink-900:#0E3B36;
  --ink-700:#14514A;
  --copper:#D97941;
  --copper-dark:#B85F2F;
  --ivory:#F6F1E7;
  --card:#FFFDF8;
  --soft:#EFE7D8;
  --text:#1C2422;
  --muted:#66706B;
  --line:#D8D1C4;
  --ok:#2F7D5A;
  --err:#B54434;
  --radius-lg:24px;
  --radius-md:16px;
  --radius-sm:12px;
  --shadow-sm:0 8px 24px rgba(20,35,32,.08);
  --shadow-md:0 14px 34px rgba(20,35,32,.12);
  --container:1220px;
  --font-sans:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-serif:"Noto Serif SC","Songti SC",Georgia,serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--ivory);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto;}
a{color:var(--ink-700);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--copper-dark);}
a:focus-visible,button:focus-visible{outline:3px solid rgba(217,121,65,.35);outline-offset:2px;border-radius:6px;}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink-900);line-height:1.25;}
p{margin:0 0 1em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
}
.section{padding:92px 0;}
.section-tight{padding:64px 0;}
.section-head{max-width:780px;margin-bottom:44px;}
.section-head h2{font-size:clamp(26px,3vw,34px);letter-spacing:.5px;}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:2px;color:var(--copper-dark);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:26px;height:2px;background:var(--copper);display:inline-block;}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  padding:14px 0 8px;
  background:linear-gradient(180deg,rgba(246,241,231,.96),rgba(246,241,231,.72));
  backdrop-filter:blur(6px);
}
.nav-card{
  display:flex;align-items:center;gap:22px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:20px;
  box-shadow:var(--shadow-sm);
  padding:12px 18px;
  min-height:80px;
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.brand-mark{
  width:28px;height:28px;border-radius:9px;
  border:2px solid var(--copper);
  position:relative;display:inline-block;flex:0 0 auto;
}
.brand-mark::after{
  content:"";position:absolute;inset:6px;
  border-radius:3px;background:var(--ink-900);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-text strong{font-size:17px;color:var(--ink-900);letter-spacing:1px;font-family:var(--font-serif);}
.brand-text span{font-size:11.5px;color:var(--muted);letter-spacing:2px;}
.nav-links{display:flex;align-items:center;gap:8px;margin-left:auto;flex-wrap:wrap;}
.nav-item{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 14px;border-radius:12px;
  font-size:14px;color:var(--text);
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
  min-height:44px;
}
.nav-item i{font-size:14px;color:var(--copper-dark);}
.nav-item:hover{background:var(--soft);border-color:var(--line);color:var(--ink-900);transform:translateY(-1px);}
.nav-item.is-active{
  background:rgba(217,121,65,.14);
  border-color:rgba(217,121,65,.42);
  box-shadow:inset 0 -2px 0 var(--copper);
  color:var(--ink-900);
  font-weight:600;
}
.nav-cta{flex:0 0 auto;}
.nav-toggle{
  display:none;margin-left:auto;
  width:46px;height:46px;border-radius:12px;
  border:1px solid var(--line);background:var(--soft);
  color:var(--ink-900);font-size:16px;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:12px;
  font-size:14.5px;font-weight:600;letter-spacing:.5px;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  min-height:44px;
}
.btn-primary{background:var(--ink-900);color:var(--ivory);box-shadow:var(--shadow-sm);}
.btn-primary:hover{background:var(--ink-700);color:var(--ivory);transform:translateY(-1px);box-shadow:var(--shadow-md);}
.btn-ghost{background:transparent;color:var(--copper-dark);border-color:var(--copper);}
.btn-ghost:hover{background:rgba(217,121,65,.14);color:var(--copper-dark);transform:translateY(-1px);}
.btn-light{background:var(--ivory);color:var(--ink-900);}
.btn-light:hover{background:#fff;color:var(--ink-700);transform:translateY(-1px);}

/* ---------- breadcrumb ---------- */
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,241,231,.78);
  margin-bottom:18px;
}
.breadcrumb a{color:rgba(246,241,231,.9);}
.breadcrumb a:hover{color:#fff;text-decoration:underline;text-underline-offset:3px;}
.breadcrumb i{font-size:10px;opacity:.7;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  padding:56px 0 60px;
  background-image:linear-gradient(100deg,rgba(14,59,54,.94) 12%,rgba(14,59,54,.82) 58%,rgba(20,81,74,.74) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  color:var(--ivory);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-60px;top:-40px;width:320px;height:320px;
  border:1px solid rgba(246,241,231,.18);border-radius:50%;pointer-events:none;
}
.page-hero h1{
  color:var(--ivory);
  font-size:clamp(30px,4vw,44px);
  font-family:var(--font-serif);
  letter-spacing:1px;
  max-width:820px;
}
.page-hero .hero-sub{
  margin-top:16px;max-width:700px;
  color:rgba(246,241,231,.86);font-size:17px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.hero-tags span{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;border-radius:999px;
  background:rgba(246,241,231,.12);
  border:1px solid rgba(246,241,231,.28);
  font-size:13px;color:rgba(246,241,231,.92);
}
.hero-tags i{color:var(--copper);font-size:12px;}

/* ---------- tags ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:999px;
  background:rgba(217,121,65,.14);
  border:1px solid rgba(217,121,65,.32);
  color:var(--copper-dark);
  font-size:12.5px;font-weight:600;letter-spacing:.5px;
}
.tag-muted{
  background:var(--soft);border-color:var(--line);color:var(--muted);font-weight:500;
}

/* ---------- feature (7/5 big card) ---------- */
.feature-grid{display:grid;grid-template-columns:7fr 5fr;gap:28px;align-items:stretch;}
.feature-main{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  overflow:hidden;
  display:flex;flex-direction:column;
  transition:box-shadow .25s ease,transform .25s ease;
}
.feature-main:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);}
.feature-media{position:relative;aspect-ratio:16/9;overflow:hidden;}
.feature-media img{width:100%;height:100%;object-fit:cover;}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(14,59,54,0) 42%,rgba(14,59,54,.55) 100%);
}
.feature-media .media-badge{
  position:absolute;left:18px;top:18px;z-index:2;
  background:rgba(246,241,231,.94);color:var(--ink-900);
  padding:6px 13px;border-radius:999px;font-size:12.5px;font-weight:600;
  letter-spacing:.5px;
}
.feature-body{padding:26px 28px 30px;display:flex;flex-direction:column;gap:14px;flex:1;}
.feature-body h3{font-size:clamp(20px,2.2vw,26px);line-height:1.4;}
.feature-body p{color:var(--muted);margin:0;font-size:15.5px;}
.feature-meta{
  display:flex;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--muted);margin-top:auto;padding-top:6px;
}
.feature-meta i{color:var(--copper);margin-right:5px;}
.link-more{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--ink-700);
  border-bottom:1px solid rgba(217,121,65,.55);
  padding-bottom:2px;
}
.link-more:hover{color:var(--copper-dark);}
.link-more i{font-size:12px;transition:transform .2s ease;}
.link-more:hover i{transform:translateX(3px);}

.feature-side{
  display:flex;flex-direction:column;gap:16px;
}
.side-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  padding:22px 22px 20px;
  box-shadow:var(--shadow-sm);
  flex:1;
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.side-card:hover{border-color:rgba(217,121,65,.5);box-shadow:var(--shadow-md);transform:translateY(-2px);}
.side-card h3{font-size:17px;margin-bottom:8px;}
.side-card p{margin:0;color:var(--muted);font-size:14.5px;}
.side-card .side-ico{
  width:38px;height:38px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(217,121,65,.14);color:var(--copper-dark);
  margin-bottom:12px;font-size:15px;
}
.side-contact{
  background:linear-gradient(150deg,var(--ink-900),var(--ink-700));
  border:none;color:var(--ivory);
}
.side-contact h3{color:var(--ivory);}
.side-contact p{color:rgba(246,241,231,.82);font-size:14px;}
.side-contact .side-ico{background:rgba(246,241,231,.16);color:var(--copper);}
.side-contact .side-line{
  display:flex;align-items:center;gap:9px;
  font-size:13.5px;color:rgba(246,241,231,.9);
  margin-top:10px;
}
.side-contact .side-line i{color:var(--copper);}

/* ---------- resource cards ---------- */
.res-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;
}
.res-card{
  display:grid;grid-template-columns:180px 1fr;gap:0;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-md);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:box-shadow .25s ease,transform .25s ease,border-color .25s ease;
}
.res-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:rgba(217,121,65,.45);}
.res-thumb{position:relative;min-height:100%;}
.res-thumb img{width:100%;height:100%;object-fit:cover;}
.res-body{padding:20px 22px;display:flex;flex-direction:column;gap:9px;}
.res-body h3{font-size:17px;line-height:1.5;}
.res-body h3 a{color:var(--ink-900);}
.res-body h3 a:hover{color:var(--copper-dark);}
.res-body p{margin:0;color:var(--muted);font-size:14.5px;line-height:1.8;}
.res-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;font-size:12.5px;color:var(--muted);margin-top:auto;padding-top:6px;}
.res-meta i{color:var(--copper);margin-right:4px;}

/* ---------- faq ---------- */
.faq-wrap{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-sm);
  padding:12px 32px 26px;
}
.faq-item{border-bottom:1px solid var(--line);}
.faq-item:last-child{border-bottom:none;}
.faq-q{
  width:100%;background:none;border:none;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 0;text-align:left;
  font-size:17px;font-weight:600;color:var(--ink-900);line-height:1.6;
  min-height:44px;
}
.faq-q:hover{color:var(--copper-dark);}
.faq-q .faq-ico{
  width:26px;height:26px;flex:0 0 auto;border-radius:50%;
  border:1px solid var(--line);color:var(--copper-dark);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:12px;transition:transform .25s ease,background .25s ease;
}
.faq-item.is-open .faq-q .faq-ico{background:rgba(217,121,65,.16);transform:rotate(180deg);}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .32s ease;
}
.faq-a p{
  margin:0;padding:0 0 22px;color:var(--muted);
  font-size:15.5px;line-height:1.85;max-width:820px;
}

/* ---------- cta band ---------- */
.cta-band{
  position:relative;
  background-image:linear-gradient(105deg,rgba(14,59,54,.95),rgba(20,81,74,.88)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  border-radius:var(--radius-lg);
  padding:48px 48px;
  color:var(--ivory);
  display:grid;grid-template-columns:1fr auto;gap:32px;align-items:center;
  overflow:hidden;
  box-shadow:var(--shadow-md);
}
.cta-band::before{
  content:"";position:absolute;left:-40px;bottom:-70px;width:260px;height:260px;
  border:1px solid rgba(246,241,231,.16);border-radius:50%;
}
.cta-band h2{color:var(--ivory);font-size:clamp(22px,2.6vw,30px);font-family:var(--font-serif);}
.cta-band p{margin:12px 0 0;color:rgba(246,241,231,.84);font-size:15.5px;max-width:660px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:96px;
  background:var(--ink-900);
  color:rgba(246,241,231,.86);
  padding:70px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px;
  padding-bottom:48px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand strong{display:block;font-size:17px;color:var(--ivory);font-family:var(--font-serif);letter-spacing:1px;}
.footer-brand span{display:block;font-size:11.5px;color:rgba(246,241,231,.6);letter-spacing:2px;}
.site-footer h4{color:var(--ivory);font-size:15px;margin-bottom:18px;letter-spacing:1px;}
.site-footer p{font-size:14px;line-height:1.85;color:rgba(246,241,231,.7);}
.footer-links li{margin-bottom:11px;}
.footer-links a{color:rgba(246,241,231,.78);font-size:14px;transition:color .2s ease,padding-left .2s ease;}
.footer-links a:hover{color:var(--copper);padding-left:4px;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;margin-bottom:13px;font-size:14px;color:rgba(246,241,231,.78);}
.footer-contact i{color:var(--copper);margin-top:5px;font-size:13px;}
.footer-bottom{
  border-top:1px solid rgba(246,241,231,.14);
  padding:22px 0 26px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(246,241,231,.56);
}

/* ---------- responsive ---------- */
@media screen and (max-width:1199px){
  .feature-grid{grid-template-columns:1fr;}
  .res-card{grid-template-columns:150px 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media screen and (max-width:899px){
  .section{padding:72px 0;}
  .nav-links{
    position:fixed;inset:0 0 0 auto;width:min(340px,86vw);
    background:var(--card);
    flex-direction:column;align-items:stretch;gap:10px;
    padding:88px 20px 28px;
    box-shadow:-16px 0 40px rgba(20,35,32,.18);
    transform:translateX(102%);
    transition:transform .3s ease;
    overflow-y:auto;z-index:80;
  }
  body.nav-open .nav-links{transform:translateX(0);}
  .nav-links .nav-item{width:100%;padding:13px 16px;font-size:15px;background:var(--soft);border-color:var(--line);}
  .nav-links .nav-item.is-active{background:rgba(217,121,65,.18);}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;position:relative;z-index:90;}
  .nav-cta{display:none;}
  .nav-card{min-height:70px;padding:10px 14px;}
  .res-grid{grid-template-columns:1fr;}
  .cta-band{grid-template-columns:1fr;padding:36px 26px;}
  .faq-wrap{padding:8px 20px 18px;}
}
@media screen and (max-width:639px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .page-hero{padding:36px 0 42px;}
  .page-hero h1{font-size:30px;line-height:1.3;}
  .page-hero .hero-sub{font-size:15.5px;}
  .feature-body{padding:20px 18px 24px;}
  .res-card{grid-template-columns:1fr;}
  .res-thumb{aspect-ratio:16/9;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
  .faq-q{font-size:15.5px;padding:18px 0;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}