/* roulang page: index */
:root{
  --c-primary:#14524A;
  --c-primary-700:#0F443D;
  --c-ink:#0C3A34;
  --c-primary-050:#E3EFEB;
  --c-accent:#E8A33D;
  --c-alert:#C8402F;
  --c-ok:#2F7D5B;
  --c-bg:#F6F4EF;
  --c-surface:#FFFFFF;
  --c-line:rgba(12,58,52,.12);
  --c-text:#1E2321;
  --c-text-2:#5C6660;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --sh1:0 1px 2px rgba(12,58,52,.06);
  --sh2:0 8px 24px rgba(12,58,52,.08);
  --sh3:0 18px 44px rgba(12,58,52,.12);
  --sp:72px;
  --sidebar-w:248px;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease,border-color .2s ease}
a:hover{color:var(--c-accent)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;color:var(--c-ink);font-weight:700}
h1{font-size:clamp(28px,4vw,44px);line-height:1.3}
h2{font-size:clamp(22px,2.6vw,32px);line-height:1.4}
h3{font-size:19px;line-height:1.5}
p{margin:0 0 1.1em}
ul,ol{margin:0;padding:0;list-style:none}
.num{font-variant-numeric:tabular-nums}

/* ============ 布局骨架 ============ */
.shell{min-height:100vh}
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--sidebar-w);
  background:var(--c-surface);
  border-right:1px solid var(--c-line);
  display:flex;
  flex-direction:column;
  gap:22px;
  padding:22px 16px 20px;
  overflow-y:auto;
  z-index:50;
}
.brand{display:flex;align-items:center;gap:10px;padding:4px 6px 0}
.brand-mark{
  width:28px;height:28px;flex:0 0 28px;
  border-radius:var(--r-sm);
  background:var(--c-primary);
  position:relative;
  overflow:hidden;
}
.brand-mark::after{
  content:"";position:absolute;left:6px;top:6px;width:16px;height:16px;
  border:2px solid var(--c-accent);
  border-radius:4px 4px 2px 2px;
  border-bottom-color:transparent;
  transform:rotate(45deg);
}
.brand-text{display:flex;flex-direction:column;font-size:15px;line-height:1.3;font-weight:700;color:var(--c-primary)}
.brand-text span:last-child{color:var(--c-ink)}
.nav-group{display:flex;flex-direction:column;gap:6px}
.nav-caption{
  font-size:12px;letter-spacing:.08em;color:var(--c-primary);
  opacity:.75;padding:0 8px 6px;font-weight:600;
}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:10px;
  height:42px;padding:0 14px;
  border-radius:10px;
  color:var(--c-text-2);
  font-size:15px;
  transition:background .2s ease,color .2s ease;
}
.nav-item i{font-size:15px;width:18px;text-align:center;color:var(--c-text-2);transition:color .2s ease}
.nav-item:hover{background:var(--c-primary-050);color:var(--c-primary)}
.nav-item:hover i{color:var(--c-primary)}
.nav-item.active{
  background:var(--c-primary-050);
  color:var(--c-primary);
  font-weight:600;
}
.nav-item.active i{color:var(--c-primary)}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  background:var(--c-accent);border-radius:2px;
}
.side-cta{
  margin-top:auto;
  background:var(--c-primary-050);
  border-radius:var(--r-md);
  padding:18px 16px;
}
.side-cta h4{font-size:15px;margin-bottom:6px}
.side-cta p{font-size:13px;color:var(--c-text-2);margin:0 0 14px;line-height:1.7}
.side-cta .btn{width:100%;height:42px;padding:0 14px;font-size:14px}

.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:40px 32px 0;flex:1 0 auto}

/* 移动端顶栏 */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:56px;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  align-items:center;justify-content:space-between;
  padding:0 16px;z-index:60;
}
.topbar .brand{padding:0}
.burger{
  width:40px;height:40px;border:1px solid var(--c-line);border-radius:10px;
  background:var(--c-surface);display:flex;align-items:center;justify-content:center;
  cursor:pointer;color:var(--c-ink);
}
.burger:hover{background:var(--c-primary-050);border-color:var(--c-primary-050)}
.overlay{
  display:none;position:fixed;inset:0;background:rgba(12,58,52,.45);z-index:55;
}
.overlay.show{display:block}

/* ============ 通用组件 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;border-radius:12px;
  font-size:15px;font-weight:600;cursor:pointer;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,transform .15s ease,box-shadow .2s ease,border-color .2s ease;
  text-align:center;
}
.btn-primary{background:var(--c-primary);color:#F6F4EF}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh1)}
.btn-secondary{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-primary)}
.btn-secondary:hover{background:var(--c-primary-050);color:var(--c-primary-700);transform:translateY(-1px)}
.btn-secondary:active{transform:translateY(0)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--c-primary);font-size:14px;font-weight:600;
  border:0;background:none;padding:0;cursor:pointer;
}
.btn-text:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.btn:focus-visible,.btn-text:focus-visible,.nav-item:focus-visible,a:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,.faq-q:focus-visible,.burger:focus-visible{
  outline:2px solid var(--c-accent);outline-offset:2px;
}
.btn[disabled],.btn.is-disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-050);color:var(--c-primary);
  font-size:12px;font-weight:600;line-height:1;white-space:nowrap;
}
.badge-accent{background:var(--c-accent);color:var(--c-ink)}
.section{margin-top:var(--sp)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px}
.section-head h2{max-width:760px}
.section-head p{margin:8px 0 0;color:var(--c-text-2);font-size:15px}
.eyebrow{
  display:inline-block;font-size:12px;letter-spacing:.1em;font-weight:600;
  color:var(--c-primary);margin-bottom:10px;
}
.card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-md);
  box-shadow:var(--sh1);
  padding:24px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:var(--c-primary-050);color:var(--c-text)}
.card h3{color:var(--c-ink)}
.card p{color:var(--c-text-2);font-size:15px;margin:10px 0 0}
.card-no{
  font-size:15px;font-weight:700;color:var(--c-accent);
  font-variant-numeric:tabular-nums;letter-spacing:.04em;
}
.divider{height:1px;background:var(--c-line);border:0;margin:0}

/* ============ Hero ============ */
.hero{padding-top:6px}
.hero-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:40px;
  align-items:center;
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-lg);
  box-shadow:var(--sh2);
  padding:40px;
}
.hero-copy h1{margin:14px 0 16px}
.hero-sub{font-size:17px;color:var(--c-text-2);max-width:520px;margin-bottom:26px}
.hero-actions{display:flex;gap:14px;flex-wrap:wrap}
.trust{display:flex;gap:10px;flex-wrap:wrap;margin-top:26px}
.hero-media{position:relative;border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh1)}
.hero-media img{width:100%;height:100%;min-height:280px;object-fit:cover;border-radius:var(--r-lg)}
.hero-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(12,58,52,0) 45%,rgba(12,58,52,.42) 100%);
  pointer-events:none;
}
.hero-tag{
  position:absolute;left:16px;bottom:16px;
  background:var(--c-accent);color:var(--c-ink);
  font-size:12px;font-weight:700;padding:6px 12px;border-radius:999px;
  z-index:2;
}
.steps{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  margin-top:24px;
  background:var(--c-primary-050);
  border-radius:var(--r-md);
  padding:22px 24px;
}
.steps li{position:relative;padding-right:22px}
.steps li:not(:last-child)::after{
  content:"";position:absolute;right:12px;top:22px;width:1px;height:34px;background:var(--c-line);
}
.steps .step-no{font-size:15px;font-weight:700;color:var(--c-accent);font-variant-numeric:tabular-nums}
.steps strong{display:block;font-size:15px;color:var(--c-ink);margin-top:4px}
.steps span{display:block;font-size:13px;color:var(--c-text-2);line-height:1.6;margin-top:2px}

/* ============ 指标看板 ============ */
.metrics{
  margin-top:var(--sp);
  background:var(--c-ink);
  border-radius:var(--r-lg);
  padding:44px 40px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:32px;
}
.metric{border-top:2px solid var(--c-accent);padding-top:16px;width:100%}
.metric .metric-num{
  font-size:clamp(34px,4vw,48px);
  line-height:1.1;font-weight:700;color:#F6F4EF;
  font-variant-numeric:tabular-nums;
}
.metric .metric-num small{font-size:15px;font-weight:600;color:#BFD6D0;margin-left:6px}
.metric p{margin:8px 0 0;font-size:13px;line-height:1.7;color:#BFD6D0}

/* ============ 服务矩阵 ============ */
.matrix{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.matrix-right{display:flex;flex-direction:column;gap:24px}
.card-xl{display:flex;flex-direction:column;padding:0;overflow:hidden}
.card-xl .card-media{height:220px;overflow:hidden}
.card-xl .card-media img{width:100%;height:100%;object-fit:cover}
.card-xl .card-body{padding:26px 26px 24px}
.points{margin-top:16px;display:flex;flex-direction:column;gap:10px}
.points li{position:relative;padding-left:18px;font-size:15px;color:var(--c-text-2)}
.points li::before{
  content:"";position:absolute;left:0;top:11px;width:7px;height:7px;border-radius:2px;
  background:var(--c-primary-050);border:1px solid var(--c-primary);
}
.card-wide{display:grid;grid-template-columns:170px 1fr;gap:0;padding:0;overflow:hidden}
.card-wide img{width:100%;height:100%;min-height:170px;object-fit:cover}
.card-wide .card-body{padding:24px}
.card-foot{margin-top:16px}

/* ============ 对比区 ============ */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--c-line);background:var(--c-surface);box-shadow:var(--sh1)}
.compare-col{padding:30px 28px}
.compare-col.left{background:#EFEDE7}
.compare-col.right{border-left:1px solid var(--c-line);box-shadow:inset 0 0 0 1px var(--c-primary-050);border-radius:0 0 0 0}
.compare-head{display:flex;align-items:center;justify-content:space-between;gap:12px;padding-bottom:14px;border-bottom:1px solid var(--c-line);margin-bottom:16px}
.compare-head h3{font-size:17px}
.compare-list li{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--c-line);font-size:15px}
.compare-list li:last-child{border-bottom:0}
.compare-list i{color:var(--c-text-2);margin-top:5px;width:16px;text-align:center}
.compare-col.right .compare-list i{color:var(--c-primary)}
.compare-list strong{display:block;color:var(--c-ink);font-weight:600}
.compare-list span{display:block;font-size:13px;color:var(--c-text-2);line-height:1.65}

/* ============ 资讯列表 ============ */
.news-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);overflow:hidden;box-shadow:var(--sh1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.news-card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:var(--c-primary-050)}
.news-cover{display:block;aspect-ratio:16/9;overflow:hidden;background:var(--c-primary-050)}
.news-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease}
.news-card:hover .news-cover img{transform:scale(1.04)}
.news-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.news-body h3{font-size:17px;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-body h3 a{color:var(--c-ink)}
.news-body h3 a:hover{color:var(--c-primary)}
.news-body .excerpt{font-size:14px;color:var(--c-text-2);line-height:1.75;margin:0;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--c-text-2);border-top:1px solid var(--c-line);padding-top:12px}
.empty-state{
  border:1px dashed var(--c-primary);
  border-radius:var(--r-md);
  padding:40px 24px;
  text-align:center;
  background:var(--c-surface);
}
.empty-state i{font-size:44px;color:var(--c-primary-050)}
.empty-state p{margin:14px 0 0;font-size:15px;color:var(--c-text-2)}
.skeleton{display:flex;flex-direction:column;gap:10px}
.skeleton span{display:block;height:12px;border-radius:6px;background:linear-gradient(90deg,#EAE7E0 25%,#F3F1EC 37%,#EAE7E0 63%);background-size:400% 100%;animation:sk 1.4s ease infinite}
.skeleton span:nth-child(2){width:82%}
.skeleton span:nth-child(3){width:56%}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ============ FAQ ============ */
.faq{max-width:820px;margin:0 auto}
.faq-item{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);margin-bottom:14px;overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.open{border-color:var(--c-primary-050);box-shadow:var(--sh1)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;background:none;border:0;cursor:pointer;text-align:left;
  font-size:18px;font-weight:600;color:var(--c-ink);line-height:1.5;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--c-primary)}
.faq-q .ico{
  flex:0 0 22px;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--c-line);color:var(--c-primary);
  display:flex;align-items:center;justify-content:center;
  font-size:13px;transition:transform .25s ease,color .2s ease,border-color .2s ease;
}
.faq-item.open .faq-q{color:var(--c-primary)}
.faq-item.open .faq-q .ico{transform:rotate(45deg);border-color:var(--c-accent);color:var(--c-accent)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a p{
  margin:0;padding:0 22px 22px 24px;font-size:15px;line-height:1.9;color:var(--c-text-2);
  border-left:2px solid var(--c-primary-050);margin-left:22px;
}

/* ============ 表单 ============ */
.cta-panel{
  background:var(--c-primary-050);
  border-radius:var(--r-lg);
  padding:40px;
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:40px;
  align-items:start;
}
.cta-panel h2{margin-bottom:12px}
.cta-panel .lead{color:var(--c-text-2);font-size:15px;margin-bottom:18px}
.cta-points{display:flex;flex-direction:column;gap:12px;margin-bottom:22px}
.cta-points li{position:relative;padding-left:20px;font-size:15px;color:var(--c-text)}
.cta-points li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:2px;background:var(--c-accent)}
.hours{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--c-primary);font-weight:600}
.form-card{background:var(--c-surface);border-radius:var(--r-md);box-shadow:var(--sh3);padding:28px}
.field{margin-bottom:18px}
.field label{display:block;font-size:14px;font-weight:600;color:var(--c-ink);margin-bottom:8px}
.field .req{color:var(--c-alert);margin-left:4px}
.field input,.field select,.field textarea{
  width:100%;height:46px;padding:0 14px;
  border:1px solid var(--c-line);border-radius:var(--r-sm);
  background:var(--c-surface);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.8;resize:vertical}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--c-primary);box-shadow:0 0 0 3px var(--c-primary-050);
}
.field.error input,.field.error select,.field.error textarea{border-color:var(--c-alert)}
.field .err{display:none;font-size:13px;color:var(--c-alert);margin-top:6px}
.field.error .err{display:block}
.form-note{font-size:13px;color:var(--c-text-2);margin:14px 0 0;line-height:1.7}
.form-ok{
  display:none;margin-bottom:18px;padding:12px 16px;border-radius:var(--r-sm);
  border:1px solid var(--c-ok);color:var(--c-ok);background:rgba(47,125,91,.07);
  font-size:14px;
}
.form-ok.show{display:block}

/* ============ 页脚 ============ */
.footer{margin-top:var(--sp);background:var(--c-ink);color:#E8EFEC;padding:56px 0 0}
.footer .wrap{padding-top:0}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px}
.footer h4{font-size:15px;color:#F6F4EF;margin-bottom:16px}
.footer p{font-size:14px;color:#BFD6D0;line-height:1.8;margin:0 0 12px}
.footer ul li{margin-bottom:10px}
.footer a{color:#D7E5E1;font-size:14px}
.footer a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-text{color:#F6F4EF}
.footer-brand .brand-text span:last-child{color:#9FC3BC}
.footer-bottom{
  margin-top:44px;border-top:1px solid rgba(255,255,255,.12);
  padding:20px 0;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{margin:0;font-size:13px;color:rgba(246,244,239,.7)}

/* ============ 响应式 ============ */
@media (min-width:1280px){
  :root{--sidebar-w:264px}
}
@media (max-width:1024px){
  .sidebar{
    width:84vw;max-width:320px;
    transform:translateX(-100%);
    transition:transform .28s ease;
    padding-top:20px;
  }
  .sidebar.open{transform:translateX(0)}
  .topbar{display:flex}
  .main{margin-left:0;padding-top:56px}
  .wrap{padding:24px 20px 0}
  :root{--sp:56px}
  .hero-grid{grid-template-columns:1fr;gap:26px;padding:28px}
  .metrics{grid-template-columns:repeat(2,1fr);padding:32px 24px;gap:24px}
  .matrix{grid-template-columns:1fr}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .cta-panel{grid-template-columns:1fr;padding:28px;gap:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  :root{--sp:48px}
  .steps{grid-template-columns:1fr 1fr;gap:20px 0;padding:20px}
  .steps li:not(:last-child)::after{display:none}
  .compare{grid-template-columns:1fr}
  .compare-col.right{border-left:0;border-top:1px solid var(--c-line)}
  .card-wide{grid-template-columns:1fr}
  .card-wide img{min-height:150px;max-height:180px}
  .footer-grid{grid-template-columns:1fr 1fr}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
  .hero-actions .btn{flex:1 1 auto}
}
@media (max-width:640px){
  body{font-size:15px}
  h1{font-size:26px}
  .metrics{grid-template-columns:1fr 1fr;padding:26px 20px;gap:22px 16px}
  .news-grid{grid-template-columns:1fr}
  .card{padding:20px}
  .card-xl .card-body{padding:20px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .hero-actions{flex-direction:column}
  .hero-actions .btn{width:100%}
  .cta-panel{padding:22px}
  .form-card{padding:20px}
  .faq-q{font-size:16px;padding:16px}
  .faq-a p{margin-left:16px;padding:0 16px 18px 16px}
  .steps{grid-template-columns:1fr}
}

/* roulang page: article */
:root{
  --c-primary:#14524A;
  --c-primary-700:#0F443D;
  --c-ink:#0C3A34;
  --c-primary-050:#E3EFEB;
  --c-accent:#E8A33D;
  --c-alert:#C8402F;
  --c-ok:#2F7D5B;
  --c-bg:#F6F4EF;
  --c-surface:#FFFFFF;
  --c-line:rgba(12,58,52,.12);
  --c-text:#1E2321;
  --c-text-2:#5C6660;
  --r-sm:8px;
  --r-md:12px;
  --r-lg:20px;
  --sh1:0 1px 2px rgba(12,58,52,.06);
  --sh2:0 8px 24px rgba(12,58,52,.08);
  --sh3:0 18px 44px rgba(12,58,52,.12);
  --sidebar-w:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  background:var(--c-bg);
  color:var(--c-text);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:var(--c-primary);text-decoration:none;transition:color .18s ease}
a:hover{color:var(--c-accent)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--c-ink);line-height:1.4}
p{margin:0 0 1.1em}
ul,ol{margin:0 0 1.1em;padding-left:1.3em}
::selection{background:var(--c-primary-050);color:var(--c-primary-700)}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;border-radius:6px}

/* ---------- 品牌 ---------- */
.brand{display:flex;align-items:center;gap:10px;padding:2px 4px;color:inherit}
.brand-mark{
  position:relative;width:28px;height:28px;border-radius:8px;background:var(--c-primary);flex:0 0 auto;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.14);
}
.brand-mark::after{
  content:"";position:absolute;left:50%;top:50%;width:11px;height:11px;border-radius:2px;
  background:var(--c-accent);transform:translate(-50%,-50%) rotate(45deg);
}
.brand-text{display:flex;flex-direction:column;font-size:15.5px;line-height:1.3;font-weight:700;letter-spacing:0}
.brand-text span{color:var(--c-primary)}
.brand-text span:last-child{color:var(--c-ink)}

/* ---------- 左侧栏 ---------- */
.sidebar{
  position:fixed;top:0;left:0;bottom:0;width:var(--sidebar-w);
  background:var(--c-surface);border-right:1px solid var(--c-line);
  padding:22px 16px 22px;display:flex;flex-direction:column;gap:22px;
  overflow-y:auto;z-index:60;
}
.nav{display:flex;flex-direction:column;gap:20px}
.nav-group{display:flex;flex-direction:column;gap:4px}
.nav-label{
  font-size:12px;font-weight:600;letter-spacing:.08em;color:var(--c-primary);
  opacity:.75;padding:0 8px;margin:0 0 6px;
}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  height:42px;padding:0 14px;border-radius:10px;
  font-size:14.5px;color:var(--c-text-2);transition:background .18s ease,color .18s ease;
}
.nav-item i{width:18px;font-size:15px;text-align:center;color:currentColor;opacity:.9}
.nav-item:hover{background:var(--c-primary-050);color:var(--c-primary)}
.nav-item.active{background:var(--c-primary-050);color:var(--c-primary);font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:0 3px 3px 0;background:var(--c-accent);
}
.side-cta{
  margin-top:auto;background:var(--c-primary-050);border-radius:14px;
  padding:18px 16px;display:flex;flex-direction:column;gap:10px;
}
.side-cta p{font-size:13px;line-height:1.7;color:var(--c-text-2);margin:0}
.side-cta .btn{width:100%;height:42px;font-size:14.5px}
.side-cta-note{font-size:12.5px;color:var(--c-text-2);text-align:center;font-variant-numeric:tabular-nums}

/* ---------- 移动端顶栏 ---------- */
.topbar{display:none}
.scrim{
  position:fixed;inset:0;background:rgba(12,58,52,.45);
  opacity:0;visibility:hidden;transition:opacity .24s ease,visibility .24s ease;z-index:55;
}
.scrim.show{opacity:1;visibility:visible}

/* ---------- 主内容 ---------- */
.main{margin-left:var(--sidebar-w);min-height:100vh;display:flex;flex-direction:column}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding-left:32px;padding-right:32px}
.page{padding-top:34px;padding-bottom:10px}

/* ---------- 面包屑与标题 ---------- */
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:9px;
  font-size:13.5px;color:var(--c-text-2);margin-bottom:22px;
}
.breadcrumb a{color:var(--c-text-2)}
.breadcrumb a:hover{color:var(--c-accent)}
.breadcrumb .sep{color:rgba(12,58,52,.28)}
.breadcrumb .now{color:var(--c-primary);font-weight:600;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-050);color:var(--c-primary);font-size:12px;font-weight:600;
}
.post-head h1{
  font-size:clamp(28px,4vw,44px);line-height:1.3;font-weight:700;
  margin:16px 0 14px;max-width:900px;
}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;font-size:14px;color:var(--c-text-2);font-variant-numeric:tabular-nums}
.meta-row .dot{width:1px;height:12px;background:var(--c-line)}
.meta-row strong{font-weight:600;color:var(--c-text)}
.rule{height:1px;border:0;background:var(--c-line);margin:26px 0 34px}

/* ---------- 双栏 ---------- */
.post-layout{display:grid;grid-template-columns:minmax(0,760px) 300px;gap:52px;align-items:start}
.post-main{min-width:0}

/* ---------- 正文排版 ---------- */
.article-body{font-size:16px;line-height:1.9;color:var(--c-text)}
.article-body>p:first-child{font-size:16.5px}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;padding-left:14px;
  font-size:clamp(21px,2.4vw,27px);font-weight:700;
  margin:2.4em 0 .8em;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:3px;
  border-radius:3px;background:var(--c-accent);
}
.article-body h3{font-size:19px;font-weight:600;margin:1.8em 0 .6em}
.article-body h4{font-size:16.5px;font-weight:600;margin:1.5em 0 .5em;color:var(--c-primary-700)}
.article-body ul{list-style:none;padding-left:0;margin:0 0 1.3em}
.article-body ul li{position:relative;padding-left:20px;margin-bottom:.5em}
.article-body ul li::before{
  content:"";position:absolute;left:2px;top:.74em;width:7px;height:7px;border-radius:1.5px;
  background:var(--c-primary-050);box-shadow:inset 0 0 0 1.5px var(--c-primary);
}
.article-body ol{padding-left:1.4em;margin:0 0 1.3em}
.article-body ol li{margin-bottom:.5em}
.article-body ol li::marker{color:var(--c-primary);font-weight:600}
.article-body blockquote{
  margin:1.7em 0;padding:16px 22px;background:var(--c-primary-050);
  border-left:3px solid var(--c-primary);border-radius:0 12px 12px 0;color:var(--c-primary-700);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.7em 0;font-size:15px;
  display:block;overflow-x:auto;white-space:nowrap;
}
.article-body th,.article-body td{border-bottom:1px solid var(--c-line);padding:12px 16px;text-align:left}
.article-body th{background:var(--c-primary-050);color:var(--c-primary-700);font-weight:600}
.article-body img{border-radius:12px;margin:1.5em auto}
.article-body figure{margin:1.7em 0}
.article-body figure img{margin:0 auto}
.article-body figcaption{font-size:13px;color:var(--c-text-2);text-align:center;margin-top:10px;line-height:1.7}
.article-body a{color:var(--c-primary);text-decoration:underline;text-decoration-color:rgba(20,82,74,.35);text-underline-offset:3px}
.article-body a:hover{color:var(--c-accent);text-decoration-color:var(--c-accent)}
.article-body hr{border:0;height:1px;background:var(--c-line);margin:2.2em 0}
.article-body strong{font-weight:600;color:var(--c-primary-700)}
.article-body code{
  background:var(--c-primary-050);color:var(--c-primary-700);
  padding:2px 6px;border-radius:6px;font-size:14px;
}

/* ---------- 侧栏 ---------- */
.post-side{display:flex;flex-direction:column;gap:20px;position:sticky;top:28px}
.card{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:14px;
  box-shadow:var(--sh1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh2);border-color:rgba(20,82,74,.28)}
.side-card{padding:20px}
.side-card h3{font-size:15px;font-weight:700;margin:0 0 14px;display:flex;align-items:center;gap:8px}
.side-card h3 i{color:var(--c-accent);font-size:14px}
.toc-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:2px}
.toc-list a{
  display:block;padding:8px 10px;border-radius:8px;border-left:2px solid transparent;
  font-size:14px;line-height:1.6;color:var(--c-text-2);
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-list a:hover{background:var(--c-primary-050);color:var(--c-primary)}
.toc-list a.on{background:var(--c-primary-050);color:var(--c-primary);font-weight:600;border-left-color:var(--c-accent)}
.mini{display:flex;gap:12px;padding:10px;border-radius:12px;transition:background .18s ease}
.mini:hover{background:var(--c-primary-050)}
.mini img{width:66px;height:50px;border-radius:8px;object-fit:cover;flex:0 0 auto}
.mini h4{
  font-size:14px;font-weight:600;line-height:1.55;margin:0 0 4px;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mini span{font-size:12px;color:var(--c-text-2);font-variant-numeric:tabular-nums}
.side-actions{display:flex;flex-direction:column;gap:10px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:background .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#F4F8F6}
.btn-primary:hover{background:var(--c-primary-700);color:#FFFFFF;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:translateY(0);box-shadow:var(--sh1)}
.btn-ghost{background:var(--c-surface);border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-050);color:var(--c-primary-700)}
.btn-ghost:active{transform:translateY(1px)}
.btn-accent{background:var(--c-accent);color:var(--c-ink)}
.btn-accent:hover{background:#D9942F;color:var(--c-ink);transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}
.text-link{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:600;color:var(--c-primary);
}
.text-link:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:4px;text-decoration-thickness:1px}

/* ---------- 文末控件 ---------- */
.post-nav{
  display:flex;flex-wrap:wrap;gap:12px;
  margin-top:46px;padding-top:28px;border-top:1px solid var(--c-line);
}
.post-nav .btn{height:44px;font-size:14.5px}

.section{margin-top:56px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:24px}
.section-head h2{font-size:clamp(20px,2.2vw,25px);font-weight:700}
.section-head p{margin:6px 0 0;font-size:14px;color:var(--c-text-2)}
.grid-3{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.rel-card{overflow:hidden;display:flex;flex-direction:column;color:inherit}
.rel-card .thumb{width:100%;aspect-ratio:16/9;object-fit:cover}
.rel-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-card h3{
  font-size:16.5px;font-weight:600;line-height:1.55;color:var(--c-ink);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0;
}
.rel-card p{
  font-size:14px;line-height:1.75;color:var(--c-text-2);margin:0;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.rel-card .foot{margin-top:auto;font-size:12.5px;color:var(--c-text-2);font-variant-numeric:tabular-nums}

.cta-bar{
  margin-top:56px;background:var(--c-ink);border-radius:20px;padding:30px 34px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:22px;
}
.cta-bar h2{color:#FFFFFF;font-size:20px;font-weight:700}
.cta-bar p{margin:8px 0 0;font-size:14px;line-height:1.75;color:rgba(240,247,244,.75);max-width:560px}

/* ---------- 空态与骨架 ---------- */
.empty-state{
  border:1px dashed rgba(20,82,74,.35);border-radius:14px;background:var(--c-surface);
  padding:48px 24px;text-align:center;
}
.empty-state i{font-size:42px;color:rgba(20,82,74,.3)}
.empty-state p{font-size:15px;color:var(--c-text-2);margin:16px 0 22px}
.skeleton{
  display:flex;flex-direction:column;gap:12px;padding:20px;
  border:1px solid var(--c-line);border-radius:14px;background:var(--c-surface);
}
.skeleton span{
  display:block;height:14px;border-radius:6px;
  background:linear-gradient(90deg,#EDEAE2 25%,#F6F4EF 37%,#EDEAE2 63%);
  background-size:400% 100%;animation:sk 1.4s ease infinite;
}
.skeleton span:nth-child(2){width:88%}
.skeleton span:nth-child(3){width:64%}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}

/* ---------- 页脚 ---------- */
.footer{background:var(--c-ink);color:#E7EFEC;margin-top:72px;padding:54px 0 0}
.footer .wrap{padding-left:32px;padding-right:32px}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.1fr;gap:32px}
.footer h4{color:#FFFFFF;font-size:15px;font-weight:600;margin:0 0 14px}
.footer ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px}
.footer a{color:rgba(231,239,236,.82);font-size:14px}
.footer a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{background:#F4F8F6}
.footer-brand .brand-mark::after{background:var(--c-accent)}
.footer-brand .brand-text span{color:#FFFFFF}
.footer-brand .brand-text span:last-child{color:var(--c-accent)}
.footer p{font-size:14px;line-height:1.8;color:rgba(231,239,236,.75);margin:0 0 10px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.12);margin-top:42px;padding:20px 0 28px;
  display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;
}
.footer-bottom p{font-size:13px;opacity:.7;margin:0}

/* ---------- 响应式 ---------- */
@media (min-width:1280px){
  :root{--sidebar-w:264px}
  .post-layout{gap:64px}
}
@media (max-width:1023.98px){
  .topbar{
    display:flex;position:fixed;top:0;left:0;right:0;height:56px;z-index:70;
    align-items:center;justify-content:space-between;padding:0 16px;
    background:var(--c-surface);border-bottom:1px solid var(--c-line);
  }
  .topbar .brand{padding:0}
  .burger{
    width:42px;height:42px;border-radius:10px;border:1px solid var(--c-line);
    background:var(--c-surface);color:var(--c-primary);font-size:17px;cursor:pointer;
    display:inline-flex;align-items:center;justify-content:center;transition:background .18s ease;
  }
  .burger:hover{background:var(--c-primary-050)}
  .burger:active{transform:translateY(1px)}
  .sidebar{
    width:84vw;max-width:320px;transform:translateX(-100%);
    transition:transform .28s ease;padding-top:20px;
  }
  .sidebar.open{transform:translateX(0)}
  .main{margin-left:0;padding-top:56px}
  .wrap{padding-left:20px;padding-right:20px}
  .footer .wrap{padding-left:20px;padding-right:20px}
  .page{padding-top:24px}
  .post-layout{grid-template-columns:minmax(0,1fr);gap:36px}
  .post-side{position:static;top:auto}
  .grid-3{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:28px}
}
@media (max-width:767.98px){
  body{font-size:15.5px}
  .post-head h1{font-size:clamp(26px,6.4vw,32px)}
  .section{margin-top:48px}
  .cta-bar{padding:24px 22px;border-radius:16px}
  .cta-bar .btn{width:100%}
  .post-nav .btn{flex:1 1 calc(50% - 6px)}
  .article-body h2{margin-top:2em}
  .footer{margin-top:48px;padding-top:44px}
}
@media (max-width:520px){
  .grid-3{grid-template-columns:minmax(0,1fr)}
  .footer-grid{grid-template-columns:minmax(0,1fr)}
  .post-nav .btn{flex:1 1 100%}
  .meta-row{gap:10px;font-size:13.5px}
  .breadcrumb .now{white-space:normal}
}

/* roulang page: category1 */
:root{
  --c-primary:#14524A;
  --c-primary-700:#0F443D;
  --c-ink:#0C3A34;
  --c-primary-050:#E3EFEB;
  --c-accent:#E8A33D;
  --c-alert:#C8402F;
  --c-ok:#2F7D5B;
  --c-bg:#F6F4EF;
  --c-surface:#FFFFFF;
  --c-line:rgba(12,58,52,0.12);
  --c-text:#1E2321;
  --c-muted:#5C6660;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --sh1:0 1px 2px rgba(12,58,52,.06);
  --sh2:0 8px 24px rgba(12,58,52,.08);
  --sh3:0 18px 44px rgba(12,58,52,.12);
  --side-w:248px;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;scroll-padding-top:72px}
body.site-body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--c-text);
  background:var(--c-bg);
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{display:block;max-width:100%;height:auto}
h1,h2,h3,h4,p{margin:0}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px}
button{font:inherit;cursor:pointer;border:0;background:none;color:inherit}
input,textarea,select{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px}
.num,.metric-num,.entry-num{font-variant-numeric:tabular-nums}

/* ---------- 品牌 ---------- */
.brand{display:flex;align-items:center;gap:10px;text-decoration:none}
.brand:hover{text-decoration:none}
.brand-mark{
  position:relative;flex:0 0 auto;width:28px;height:28px;border-radius:8px;background:var(--c-primary);
}
.brand-mark::after{
  content:"";position:absolute;left:8px;top:6px;width:12px;height:16px;
  border:2px solid var(--c-accent);border-bottom:none;border-radius:6px 6px 0 0;
}
.brand-text{
  display:flex;flex-direction:column;gap:1px;font-size:15px;font-weight:700;line-height:1.3;
  color:var(--c-primary);letter-spacing:0;
}
.brand-text span:last-child{color:var(--c-ink)}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  position:fixed;top:0;left:0;right:0;height:56px;z-index:50;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 16px;background:var(--c-surface);border-bottom:1px solid var(--c-line);
}
.burger{
  width:42px;height:42px;border-radius:10px;color:var(--c-primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:18px;
  transition:background .2s ease;
}
.burger:hover{background:var(--c-primary-050)}

/* ---------- 左侧导航 ---------- */
.side{
  position:fixed;top:0;left:0;bottom:0;z-index:60;
  width:84vw;max-width:320px;overflow-y:auto;
  display:flex;flex-direction:column;gap:22px;
  padding:22px 18px;background:var(--c-surface);border-right:1px solid var(--c-line);
  transform:translateX(-100%);transition:transform .28s ease;
}
.side.open{transform:translateX(0)}
.mask{
  position:fixed;inset:0;z-index:55;background:rgba(12,58,52,.45);
  opacity:0;pointer-events:none;transition:opacity .25s ease;
}
.mask.show{opacity:1;pointer-events:auto}
.nav-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:4px}
.nav-item{
  position:relative;display:flex;align-items:center;gap:10px;
  height:42px;padding:0 14px;border-radius:10px;
  font-size:15px;font-weight:500;color:var(--c-muted);
  transition:background .2s ease,color .2s ease;
}
.nav-item i{width:18px;text-align:center;font-size:15px;flex:0 0 auto}
.nav-item:hover{background:var(--c-primary-050);color:var(--c-primary);text-decoration:none}
.nav-item.active{background:var(--c-primary-050);color:var(--c-primary);font-weight:600}
.nav-item.active::before{
  content:"";position:absolute;left:0;top:9px;bottom:9px;width:3px;
  border-radius:2px;background:var(--c-accent);
}
.side-group-title{
  margin:0 0 10px;padding-left:14px;
  font-size:12px;font-weight:700;letter-spacing:.14em;text-transform:uppercase;
  color:var(--c-primary);opacity:.72;
}
.side-cta{
  margin-top:auto;padding:16px;border-radius:var(--r-md);background:var(--c-primary-050);
}
.side-cta p{margin:10px 0 0;font-size:13px;line-height:1.7;color:var(--c-muted)}

/* ---------- 主内容容器 ---------- */
.main{padding-top:56px}
.main-inner{max-width:1200px;margin:0 auto;padding:24px 18px 0}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;border-radius:12px;border:1px solid transparent;
  font-size:15px;font-weight:600;white-space:nowrap;text-decoration:none;
  transition:background .22s ease,color .22s ease,transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.btn:hover{text-decoration:none}
.btn-primary{background:var(--c-primary);color:#F6F4EF}
.btn-primary:hover{background:var(--c-primary-700);color:#fff;transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{background:var(--c-surface);border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:hover{background:var(--c-primary-050);color:var(--c-primary);transform:translateY(-1px)}
.btn-ghost:active{transform:translateY(0)}
.btn-light{background:#fff;color:var(--c-primary)}
.btn-light:hover{background:var(--c-primary-050);color:var(--c-primary-700);transform:translateY(-1px);box-shadow:var(--sh2)}
.btn-block{width:100%}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;border-radius:999px;
  background:var(--c-primary-050);color:var(--c-primary);
  font-size:12px;font-weight:600;letter-spacing:.02em;
}

/* ---------- 面包屑 ---------- */
.crumbs{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin-bottom:24px;font-size:14px;color:var(--c-muted);
}
.crumbs a{color:var(--c-muted)}
.crumbs a:hover{color:var(--c-primary)}
.crumbs .sep{opacity:.5}
.crumbs .current{color:var(--c-primary);font-weight:600}

/* ---------- 分类 Hero ---------- */
.hero-card{
  display:grid;gap:28px;padding:26px;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-lg);
  box-shadow:var(--sh1);
}
.hero-card h1{
  margin:14px 0 12px;
  font-size:clamp(28px,4vw,44px);line-height:1.3;font-weight:700;color:var(--c-text);
}
.hero-sub{font-size:17px;font-weight:600;color:var(--c-primary-700);margin:0 0 12px}
.hero-desc{font-size:15px;line-height:1.85;color:var(--c-muted);max-width:52ch}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.trust{
  list-style:none;display:flex;flex-wrap:wrap;gap:10px;
  margin:22px 0 0;padding:0;
}
.trust li{
  display:inline-flex;align-items:center;gap:7px;
  padding:6px 12px;border-radius:999px;
  background:var(--c-bg);border:1px solid var(--c-line);
  font-size:13px;font-weight:600;color:var(--c-primary);
}
.trust i{color:var(--c-accent);font-size:13px}
.hero-media{position:relative}
.hero-media img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:var(--r-lg)}
.hero-tag{
  position:absolute;right:14px;bottom:14px;
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 12px;border-radius:999px;
  background:var(--c-accent);color:var(--c-ink);
  font-size:12px;font-weight:700;
}

/* ---------- 要点索引 ---------- */
.index-section{margin-top:28px}
.index-hint{margin:0 0 12px;font-size:14px;color:var(--c-muted)}
.index-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:10px}
.index-item{
  display:flex;flex-direction:column;gap:6px;
  padding:14px 12px;border-radius:12px;
  background:var(--c-primary-050);color:var(--c-primary);
  font-size:14px;font-weight:600;line-height:1.45;
  transition:background .2s ease,transform .2s ease;
}
.index-item .num{font-size:12px;font-weight:700;opacity:.62}
.index-item:hover{background:#d6e7e1;color:var(--c-primary-700);text-decoration:none;transform:translateY(-2px)}

/* ---------- 板块通用 ---------- */
.section{margin-top:72px}
.section-head{margin-bottom:26px}
.sec-title{font-size:clamp(22px,2.6vw,32px);line-height:1.4;font-weight:700;color:var(--c-text)}
.sec-sub{margin-top:8px;font-size:15px;color:var(--c-muted)}

/* ---------- 说明卡 + 条目列表 ---------- */
.note-card{
  padding:24px;margin-bottom:26px;
  background:var(--c-surface);border:1px solid var(--c-line);
  border-left:4px solid var(--c-primary-050);border-radius:var(--r-md);
  box-shadow:var(--sh1);
}
.note-card h2{font-size:20px;font-weight:700;line-height:1.5;color:var(--c-text);margin-bottom:10px}
.note-card p{font-size:15px;line-height:1.9;color:var(--c-muted)}
.entry-list{display:grid;grid-template-columns:1fr;column-gap:44px}
.entry-item{display:flex;gap:14px;padding:18px 0;border-bottom:1px solid var(--c-line)}
.entry-num{
  flex:0 0 auto;display:inline-flex;align-items:center;justify-content:center;
  min-width:36px;height:24px;padding:0 8px;border-radius:999px;
  background:var(--c-primary-050);color:var(--c-primary);
  font-size:12px;font-weight:700;
}
.entry-title{font-size:16px;font-weight:600;line-height:1.6;color:var(--c-text);margin-bottom:4px}
.entry-desc{font-size:14px;line-height:1.75;color:var(--c-muted)}

/* ---------- 指标小条 ---------- */
.metric-strip{
  display:grid;grid-template-columns:1fr;gap:26px;
  padding:28px 24px;border-radius:var(--r-lg);background:var(--c-primary-050);
}
.metric-item::before{
  content:"";display:block;width:24px;height:2px;border-radius:2px;
  background:var(--c-accent);margin-bottom:12px;
}
.metric-num{font-size:clamp(26px,3vw,34px);font-weight:700;line-height:1.25;color:var(--c-ink)}
.metric-label{margin-top:6px;font-size:14px;line-height:1.7;color:var(--c-muted)}

/* ---------- 跳转卡 ---------- */
.jump-grid{display:grid;grid-template-columns:1fr;gap:20px}
.jump-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  box-shadow:var(--sh1);
  transition:transform .24s ease,box-shadow .24s ease,border-color .24s ease;
}
.jump-card:hover{
  transform:translateY(-2px);box-shadow:var(--sh2);
  border-color:var(--c-primary-050);text-decoration:none;
}
.jump-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.jump-body{padding:24px;display:flex;flex-direction:column;align-items:flex-start}
.jump-body h3{margin:14px 0 8px;font-size:18px;font-weight:600;line-height:1.55;color:var(--c-text)}
.jump-body p{font-size:14px;line-height:1.8;color:var(--c-muted)}
.text-link{
  display:inline-flex;align-items:center;gap:6px;margin-top:16px;
  font-size:14px;font-weight:600;color:var(--c-primary);
}
.text-link i{font-size:12px;transition:transform .2s ease}
.jump-card:hover .text-link{color:var(--c-accent)}
.jump-card:hover .text-link i{transform:translateX(3px)}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{
  background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh1);
  transition:border-color .2s ease;
}
.faq-item:hover{border-color:var(--c-primary-050)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  width:100%;padding:18px 22px;text-align:left;
  font-size:18px;font-weight:600;line-height:1.55;color:var(--c-text);
  transition:color .2s ease;
}
.faq-q:hover{color:var(--c-primary)}
.faq-icon{flex:0 0 auto;font-size:15px;color:var(--c-accent);transition:transform .25s ease}
.faq-item.open .faq-q{color:var(--c-primary)}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-item.open .faq-a{max-height:420px}
.faq-a-inner{
  margin:0 22px 20px 22px;padding-left:16px;
  border-left:2px solid var(--c-primary-050);
  font-size:15px;line-height:1.9;color:var(--c-muted);
}

/* ---------- CTA 条 ---------- */
.cta-band{
  display:grid;gap:20px;align-items:center;
  padding:28px;border-radius:var(--r-lg);background:var(--c-ink);
}
.cta-band h2{font-size:clamp(20px,2.2vw,26px);line-height:1.45;font-weight:700;color:#F6F4EF}
.cta-band p{margin-top:8px;font-size:15px;line-height:1.8;color:rgba(246,244,239,.78)}

/* ---------- 页脚 ---------- */
.footer{margin-top:72px;padding-top:56px;background:var(--c-ink);color:#F6F4EF}
.footer .wrap{max-width:1200px;margin:0 auto;padding:0 24px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-text{color:#fff}
.footer-brand .brand-text span:last-child{color:var(--c-accent)}
.footer h4{margin:0 0 14px;font-size:14px;font-weight:700;letter-spacing:.06em;color:#fff}
.footer ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px}
.footer a{font-size:14px;color:rgba(246,244,239,.8)}
.footer a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px}
.footer p{font-size:14px;line-height:1.85;color:rgba(246,244,239,.78);margin-bottom:8px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:8px;justify-content:space-between;align-items:center;
  margin-top:40px;padding:18px 0 24px;border-top:1px solid rgba(246,244,239,.14);
}
.footer-bottom p{margin:0;font-size:13px;opacity:.7}

/* ---------- 响应式 ---------- */
@media (min-width:640px){
  .index-grid{grid-template-columns:repeat(3,minmax(0,1fr))}
  .metric-strip{grid-template-columns:repeat(3,minmax(0,1fr));padding:32px}
  .jump-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .cta-band{grid-template-columns:1fr auto;padding:34px 36px}
}
@media (min-width:768px){
  .entry-list{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
}
@media (max-width:639px){
  .hero-actions .btn{width:100%}
  .cta-band .btn{width:100%}
}
@media (min-width:1024px){
  :root{--side-w:248px}
  .side{
    width:var(--side-w);max-width:none;transform:none;
    padding:26px 20px;box-shadow:none;
  }
  .mask{display:none}
  .topbar{display:none}
  .main{margin-left:var(--side-w);padding-top:0}
  .main-inner{padding:40px 32px 0}
  .hero-card{grid-template-columns:7fr 5fr;gap:36px;padding:36px;align-items:center}
  .index-grid{grid-template-columns:repeat(6,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}
  .section{margin-top:72px}
}
@media (min-width:1280px){
  :root{--side-w:264px}
}
@media (max-width:1023px){
  .section{margin-top:48px}
  .footer{margin-top:48px;padding-top:40px}
  .note-card{padding:20px}
  .jump-body{padding:20px}
}

/* roulang page: category2 */
:root{
  --c-primary:#14524A;
  --c-primary-700:#0F443D;
  --c-primary-050:#E3EFEB;
  --c-ink:#0C3A34;
  --c-accent:#E8A33D;
  --c-alert:#C8402F;
  --c-ok:#2F7D5B;
  --c-bg:#F6F4EF;
  --c-surface:#FFFFFF;
  --c-line:rgba(12,58,52,0.12);
  --c-text:#1E2321;
  --c-muted:#5C6660;
  --r-s:8px;
  --r-m:14px;
  --r-l:20px;
  --sh-1:0 1px 2px rgba(12,58,52,.06);
  --sh-2:0 8px 24px rgba(12,58,52,.08);
  --sh-3:0 18px 44px rgba(12,58,52,.12);
  --sect:72px;
  --side:248px;
  --font:PingFang SC,"HarmonyOS Sans","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--c-primary);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--c-accent);}
button{font-family:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;color:var(--c-ink);}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
input,select,textarea{font-family:inherit;font-size:15px;color:var(--c-text);}
:focus-visible{outline:2px solid var(--c-accent);outline-offset:2px;}

/* ---------- 布局骨架 ---------- */
.shell{min-height:100vh;}
.sidebar{
  position:fixed;
  top:0;left:0;bottom:0;
  width:var(--side);
  background:var(--c-surface);
  border-right:1px solid var(--c-line);
  display:flex;
  flex-direction:column;
  gap:22px;
  padding:24px 16px 20px;
  overflow-y:auto;
  z-index:60;
}
.main{margin-left:var(--side);min-height:100vh;display:flex;flex-direction:column;}
.wrap{width:100%;max-width:1200px;margin:0 auto;padding:0 32px;}
main{flex:1;}

/* ---------- Logo / 品牌 ---------- */
.brand{display:flex;align-items:center;gap:10px;padding:0 8px;}
.brand-mark{
  position:relative;
  flex:0 0 28px;
  width:28px;height:28px;
  border-radius:var(--r-s);
  background:linear-gradient(150deg,var(--c-primary) 0%,var(--c-ink) 100%);
  display:inline-flex;align-items:center;justify-content:center;
}
.brand-mark::after{
  content:"";
  width:12px;height:12px;
  border:2px solid var(--c-accent);
  border-bottom:none;
  border-radius:4px 4px 0 0;
}
.brand-text{display:flex;flex-direction:column;font-size:15px;line-height:1.3;font-weight:700;}
.brand-text span:first-child{color:var(--c-primary);}
.brand-text span:last-child{color:var(--c-ink);}

/* ---------- 侧栏导航 ---------- */
.nav-group{margin-top:4px;}
.nav-label{
  font-size:12px;
  letter-spacing:.14em;
  color:#6E8C86;
  padding:0 12px;
  margin-bottom:8px;
  font-weight:600;
}
.nav-item{
  position:relative;
  display:flex;align-items:center;gap:10px;
  height:42px;
  padding-left:14px;
  border-radius:10px;
  color:var(--c-muted);
  font-size:15px;
  transition:background .2s ease,color .2s ease;
}
.nav-item i{font-size:15px;width:18px;text-align:center;}
.nav-item:hover{background:var(--c-primary-050);color:var(--c-primary);}
.nav-item.is-active{background:var(--c-primary-050);color:var(--c-primary);font-weight:600;}
.nav-item.is-active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;
  width:3px;border-radius:2px;background:var(--c-accent);
}
.side-cta{
  margin-top:auto;
  background:var(--c-primary-050);
  border-radius:var(--r-m);
  padding:16px 16px 18px;
}
.side-cta h4{font-size:15px;margin-bottom:6px;}
.side-cta p{font-size:13px;line-height:1.7;color:var(--c-muted);margin-bottom:12px;}
.side-cta .btn{width:100%;height:42px;font-size:14px;}

/* ---------- 移动端顶栏 ---------- */
.topbar{
  display:none;
  position:fixed;top:0;left:0;right:0;height:56px;
  background:var(--c-surface);
  border-bottom:1px solid var(--c-line);
  align-items:center;justify-content:space-between;
  padding:0 16px;
  z-index:70;
}
.topbar .brand{padding:0;}
.burger{
  width:42px;height:42px;
  border:1px solid var(--c-line);
  background:var(--c-surface);
  border-radius:10px;
  color:var(--c-primary);
  font-size:16px;
  cursor:pointer;
  transition:background .2s ease,border-color .2s ease;
}
.burger:hover{background:var(--c-primary-050);border-color:var(--c-primary-050);}
.overlay{
  position:fixed;inset:0;
  background:rgba(12,58,52,.45);
  opacity:0;visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
  z-index:55;
}
.overlay.is-open{opacity:1;visibility:visible;}

/* ---------- 通用组件 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  height:24px;padding:0 12px;
  border-radius:999px;
  background:var(--c-primary-050);
  color:var(--c-primary);
  font-size:12px;font-weight:600;
  letter-spacing:.02em;
}
.badge-accent{background:var(--c-accent);color:#3A2606;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 20px;
  border-radius:12px;
  border:1px solid transparent;
  font-size:15px;font-weight:600;
  cursor:pointer;
  transition:background .2s ease,color .2s ease,transform .16s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-primary{background:var(--c-primary);color:#F4F1E9;}
.btn-primary:hover{background:var(--c-primary-700);color:#F4F1E9;transform:translateY(-1px);box-shadow:var(--sh-2);}
.btn-primary:active{transform:translateY(0);box-shadow:none;}
.btn-ghost{background:var(--c-surface);color:var(--c-primary);border-color:var(--c-primary);}
.btn-ghost:hover{background:var(--c-primary-050);color:var(--c-primary);}
.btn:disabled{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none;}
.card{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-m);
  box-shadow:var(--sh-1);
  padding:24px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);border-color:var(--c-primary-050);}
.text-link{font-weight:600;font-size:14px;color:var(--c-primary);}
.text-link:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;}
.sec{margin-bottom:var(--sect);}
.sec-head{max-width:720px;margin-bottom:32px;}
.sec-head h2{font-size:clamp(22px,2.6vw,32px);line-height:1.4;margin-bottom:12px;}
.sec-head p{color:var(--c-muted);font-size:15px;margin:0;}
.tnum{font-variant-numeric:tabular-nums;}
.skeleton{border-radius:6px;background:linear-gradient(90deg,#EDEAE2 25%,#F6F4EF 37%,#EDEAE2 63%);background-size:400% 100%;animation:sk 1.4s ease infinite;height:12px;margin-bottom:10px;}
@keyframes sk{0%{background-position:100% 50%}100%{background-position:0 50%}}
.empty{
  border:1px dashed var(--c-primary-050);
  border-radius:var(--r-m);
  padding:40px 24px;
  text-align:center;
  color:var(--c-muted);
  font-size:15px;
}
.empty i{display:block;font-size:48px;color:var(--c-primary-050);margin-bottom:12px;}

/* ---------- 首屏 ---------- */
.hero{
  position:relative;
  padding:56px 0 0;
  background-image:linear-gradient(180deg,rgba(246,244,239,.94),rgba(246,244,239,.99)),url(/assets/images/backpic/back-1.webp);
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--c-line);
}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;padding-bottom:44px;}
.crumb{display:flex;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--c-muted);margin-bottom:18px;}
.crumb a{color:var(--c-muted);}
.crumb a:hover{color:var(--c-primary);}
.crumb span.sep{opacity:.5;}
.crumb .cur{color:var(--c-primary);font-weight:600;}
.hero h1{font-size:clamp(28px,4vw,44px);line-height:1.3;margin:16px 0 18px;}
.hero-sub{font-size:17px;color:var(--c-muted);max-width:520px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;}
.hero-visual{position:relative;}
.hero-visual img{
  width:100%;
  aspect-ratio:4/3;
  object-fit:cover;
  border-radius:var(--r-l);
  box-shadow:var(--sh-3);
  border:1px solid var(--c-line);
}
.hero-corner{
  position:absolute;
  right:-10px;bottom:-10px;
  background:var(--c-accent);
  color:#3A2606;
  font-size:13px;font-weight:700;
  padding:10px 16px;
  border-radius:999px;
  box-shadow:var(--sh-2);
}
.notice-bar{
  display:flex;align-items:center;gap:12px;
  background:var(--c-primary-050);
  border-radius:var(--r-m);
  padding:16px 20px;
  font-size:15px;
  color:var(--c-ink);
  margin-bottom:0;
}
.notice-bar i{color:var(--c-accent);font-size:18px;}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding:8px 0 0;}
.timeline::before{
  content:"";position:absolute;left:50%;top:6px;bottom:0;width:2px;
  background:var(--c-primary-050);transform:translateX(-1px);
}
.tl-item{position:relative;width:50%;padding:0 44px 36px 0;}
.tl-item:nth-child(even){margin-left:50%;padding:0 0 36px 44px;}
.tl-dot{
  position:absolute;top:10px;right:-7px;
  width:12px;height:12px;border-radius:50%;
  background:var(--c-primary);
}
.tl-item:nth-child(even) .tl-dot{right:auto;left:-7px;}
.tl-item.is-current .tl-dot{background:var(--c-accent);box-shadow:0 0 0 5px rgba(232,163,61,.18);}
.tl-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);box-shadow:var(--sh-1);padding:22px 24px;}
.tl-step{
  display:inline-block;
  font-size:12px;font-weight:700;letter-spacing:.1em;
  color:var(--c-accent);
  margin-bottom:8px;
  font-variant-numeric:tabular-nums;
}
.tl-card h3{font-size:18px;margin-bottom:8px;}
.tl-card p{font-size:15px;color:var(--c-muted);margin:0;}

/* ---------- 对照区 ---------- */
.compare{
  border:1px solid var(--c-line);
  border-radius:var(--r-m);
  overflow:hidden;
  background:var(--c-surface);
  box-shadow:var(--sh-1);
}
.compare-row{display:grid;grid-template-columns:1fr 1.1fr 1.1fr;}
.compare-row > div{padding:18px 22px;border-top:1px solid var(--c-line);font-size:15px;}
.compare-head > div{
  border-top:none;
  background:var(--c-primary-050);
  color:var(--c-ink);
  font-weight:600;
  font-size:14px;
  letter-spacing:.02em;
}
.compare-name{font-weight:600;color:var(--c-ink);}
.compare-old{color:var(--c-muted);}
.compare-new{color:var(--c-primary);font-weight:500;position:relative;padding-left:34px !important;}
.compare-new::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;left:22px;top:19px;
  font-size:12px;color:var(--c-accent);
}

/* ---------- 安全要点 ---------- */
.guard-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.guard-card{background:var(--c-surface);border:1px solid var(--c-line);border-radius:var(--r-m);overflow:hidden;box-shadow:var(--sh-1);transition:transform .2s ease,box-shadow .2s ease;}
.guard-card:hover{transform:translateY(-2px);box-shadow:var(--sh-2);}
.guard-card img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.guard-body{padding:22px;}
.guard-body h3{font-size:18px;margin-bottom:10px;}
.guard-body p{font-size:15px;color:var(--c-muted);margin:0;}

/* ---------- 指标条 ---------- */
.metrics{
  background:var(--c-primary-050);
  border-radius:var(--r-l);
  padding:32px 28px;
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.metric{border-top:2px solid var(--c-accent);padding-top:14px;}
.metric b{
  display:block;
  font-size:clamp(28px,3.4vw,40px);
  line-height:1.2;
  font-weight:700;
  color:var(--c-ink);
  font-variant-numeric:tabular-nums;
}
.metric span{display:block;font-size:13px;color:var(--c-muted);margin-top:6px;}

/* ---------- 表单 ---------- */
.form-panel{
  background:var(--c-primary-050);
  border-radius:var(--r-l);
  padding:40px;
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:40px;
}
.form-intro h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:14px;}
.form-intro p{color:var(--c-muted);font-size:15px;}
.form-points{margin:20px 0;}
.form-points li{
  position:relative;
  padding-left:26px;
  font-size:15px;
  margin-bottom:10px;
  color:var(--c-text);
}
.form-points li::before{
  content:"";
  position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:2px;
  background:var(--c-primary);
}
.form-hours{font-size:14px;color:var(--c-muted);}
.form-card{
  background:var(--c-surface);
  border-radius:var(--r-m);
  box-shadow:var(--sh-3);
  padding:28px;
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--c-ink);}
.field .req{color:var(--c-alert);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;
  height:46px;
  border:1px solid var(--c-line);
  border-radius:var(--r-s);
  padding:0 14px;
  background:var(--c-surface);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field textarea{height:auto;min-height:110px;padding:12px 14px;line-height:1.7;resize:vertical;}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;
  border-color:var(--c-primary);
  box-shadow:0 0 0 3px var(--c-primary-050);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--c-alert);}
.field .tip{font-size:13px;color:var(--c-alert);margin-top:6px;display:none;}
.field.has-error .tip{display:block;}
.form-card .btn{width:100%;}
.form-ok{
  display:none;
  border:1px solid var(--c-ok);
  color:var(--c-ok);
  background:rgba(47,125,91,.06);
  border-radius:var(--r-s);
  padding:12px 14px;
  font-size:14px;
  margin-bottom:16px;
}
.form-ok.show{display:block;}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;margin:0 auto;}
.faq-item{
  background:var(--c-surface);
  border:1px solid var(--c-line);
  border-radius:var(--r-m);
  box-shadow:var(--sh-1);
  margin-bottom:14px;
  overflow:hidden;
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;
  font-size:18px;
  font-weight:600;
  color:var(--c-ink);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";
  font-size:22px;
  line-height:1;
  color:var(--c-primary);
  transition:transform .25s ease,color .25s ease;
}
.faq-item[open] summary{color:var(--c-primary);}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--c-accent);}
.faq-body{
  position:relative;
  padding:0 22px 22px 42px;
  font-size:15px;
  line-height:1.9;
  color:var(--c-muted);
}
.faq-body::before{
  content:"";
  position:absolute;left:22px;top:4px;bottom:26px;
  width:2px;background:var(--c-primary-050);
}

/* ---------- CTA 条 ---------- */
.cta-bar{
  background:var(--c-ink);
  border-radius:var(--r-l);
  padding:32px 36px;
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  color:#EFEDE6;
}
.cta-bar h3{color:#F6F4EF;font-size:21px;margin-bottom:6px;}
.cta-bar p{color:rgba(246,244,239,.72);font-size:15px;margin:0;}
.cta-bar .btn-primary{background:var(--c-accent);color:#3A2606;}
.cta-bar .btn-primary:hover{background:#D9942B;color:#3A2606;}

/* ---------- 页脚 ---------- */
.footer{background:var(--c-ink);color:#EFEDE6;padding:56px 0 24px;margin-top:auto;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:36px;}
.footer .brand{padding:0;margin-bottom:16px;}
.footer .brand-text span:first-child{color:#F6F4EF;}
.footer .brand-text span:last-child{color:rgba(246,244,239,.78);}
.footer p{font-size:14px;line-height:1.8;color:rgba(246,244,239,.72);}
.footer h4{color:#F6F4EF;font-size:15px;margin-bottom:14px;}
.footer li{margin-bottom:10px;}
.footer a{color:rgba(246,244,239,.78);font-size:14px;}
.footer a:hover{color:var(--c-accent);text-decoration:underline;text-underline-offset:3px;}
.footer-bottom{
  border-top:1px solid rgba(246,244,239,.14);
  margin-top:40px;padding-top:18px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;opacity:.7;margin:0;}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  :root{--side:248px;}
  .wrap{padding:0 28px;}
  .hero-grid{gap:36px;}
}
@media (max-width:1023px){
  .topbar{display:flex;}
  .sidebar{
    transform:translateX(-100%);
    transition:transform .28s ease;
    width:84vw;max-width:320px;
    box-shadow:var(--sh-3);
    border-right:none;
  }
  .sidebar.is-open{transform:none;}
  .main{margin-left:0;padding-top:56px;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-visual{order:-1;}
  .guard-grid{grid-template-columns:1fr 1fr;}
  .form-panel{grid-template-columns:1fr;padding:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  :root{--sect:48px;}
  .wrap{padding:0 20px;}
  .sec-head{margin-bottom:24px;}
  .timeline::before{left:7px;transform:none;}
  .tl-item,
  .tl-item:nth-child(even){width:100%;margin-left:0;padding:0 0 28px 32px;}
  .tl-dot,
  .tl-item:nth-child(even) .tl-dot{left:1px;right:auto;}
  .compare-row{grid-template-columns:1fr;}
  .compare-row > div{border-top:1px solid var(--c-line);}
  .compare-head{display:none;}
  .compare-row > div::before{
    content:attr(data-label);
    display:block;
    font-size:12px;
    letter-spacing:.06em;
    color:#6E8C86;
    margin-bottom:6px;
  }
  .compare-row > div:first-child{background:var(--c-primary-050);border-top:none;}
  .compare-new{padding-left:22px !important;}
  .compare-new::before{left:6px;top:auto;bottom:20px;}
  .guard-grid{grid-template-columns:1fr;}
  .metrics{grid-template-columns:1fr;gap:18px;padding:24px 20px;}
  .form-panel{padding:24px 20px;}
  .form-card{padding:20px;}
  .faq-item summary{font-size:16px;padding:18px;}
  .faq-body{padding:0 18px 18px 36px;}
  .faq-body::before{left:18px;}
  .cta-bar{flex-direction:column;align-items:flex-start;padding:26px 22px;}
  .cta-bar .btn{width:100%;}
  .footer{padding:40px 0 20px;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-actions .btn{width:100%;}
}
@media (max-width:520px){
  .hero{padding-top:36px;}
  .hero h1{font-size:26px;}
  body{font-size:15.5px;}
}