/* roulang page: index */
:root{
  --bs-primary:#10403B;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1B2320;
  --bs-border-color:rgba(16,64,59,.12);
  --bs-border-radius:14px;
  --bs-font-sans-serif:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  --deep:#10403B;
  --deep-hover:#0C322E;
  --deep-light:#1E5C52;
  --mint:#7FC8A9;
  --clay:#D97A34;
  --clay-light:#F0DCC8;
  --paper:#F7F5F0;
  --ink:#0B1F1C;
  --card:#FFFFFF;
  --text:#1B2320;
  --text-2:#5C6663;
  --text-3:#8A938F;
  --line:rgba(16,64,59,.12);
  --mono:"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(11,31,28,.06);
  --sh-2:0 12px 28px rgba(11,31,28,.10);
  --nav-h:64px;
}
*{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--deep);text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,transform .18s ease-out}
a:hover{color:var(--clay)}
img{max-width:100%;display:block;border-radius:var(--r-img);object-fit:cover}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:.2px;color:var(--text)}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--clay);outline-offset:2px;border-radius:4px}
.container{max-width:1200px;padding-left:24px;padding-right:24px}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;height:var(--nav-h);
  background:#FCFBF8;border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease-out,background-color .18s ease-out;
}
.site-header.is-scrolled{background:#F7F5F0;box-shadow:0 6px 18px rgba(11,31,28,.07)}
.site-header .container{height:100%}
.nav-wrap{height:100%;display:flex;align-items:center;justify-content:space-between;gap:20px}
.nav-left{display:flex;align-items:center;gap:34px;min-width:0}
.brand{display:inline-flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{width:24px;height:24px;border-radius:4px;background:var(--deep);position:relative;flex:0 0 auto}
.brand-mark::after{content:"";position:absolute;inset:7px;background:var(--clay);border-radius:2px}
.brand-text{font-size:18px;font-weight:700;color:var(--deep);letter-spacing:.5px;white-space:nowrap}
.brand:hover .brand-text{color:var(--clay)}
.nav-links{display:flex;align-items:center;gap:22px}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 0;white-space:nowrap;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;background:var(--clay);
  transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out;
}
.nav-links a:hover{color:var(--deep)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--deep);font-weight:600}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.search-btn{
  display:inline-flex;align-items:center;gap:8px;height:40px;padding:0 16px;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--text-2);font-size:14px;font-weight:500;
}
.search-btn:hover{background:#EDF3F0;color:var(--deep);border-color:rgba(16,64,59,.24)}
.menu-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  background:#fff;border:1px solid var(--line);border-radius:var(--r-btn);color:var(--deep);font-size:16px;
}
.menu-btn:hover{background:#EDF3F0}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1.2;padding:12px 24px;
  border-radius:var(--r-btn);border:1px solid transparent;
  transition:all .18s ease-out;box-shadow:none;text-align:center;
}
.btn-main{background:var(--deep);border-color:var(--deep);color:#fff}
.btn-main:hover,.btn-main:active{background:var(--deep-hover);border-color:var(--deep-hover);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:transparent;border-color:var(--deep);color:var(--deep)}
.btn-ghost:hover{background:var(--deep);border-color:var(--deep);color:#fff;transform:translateY(-2px)}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-block{width:100%}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--deep);background:none;border:0;padding:0;
}
.btn-text i{transition:transform .18s ease-out}
.btn-text:hover{color:var(--clay)}
.btn-text:hover i{transform:translateX(4px)}

/* ============ 通用板块 ============ */
.sec{padding:96px 0}
.sec-tight{padding:72px 0}
.sec-num{
  font-family:var(--mono);font-size:13px;letter-spacing:2px;color:var(--clay);
  display:flex;align-items:center;gap:10px;margin-bottom:14px;font-weight:600;
}
.sec-num::after{content:"";width:36px;height:1px;background:var(--clay);opacity:.5}
.sec-title{font-size:30px;line-height:1.35;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.sec-title::before{content:"";width:16px;height:16px;border-radius:4px;background:var(--clay);flex:0 0 auto}
.sec-sub{margin-top:14px;font-size:15px;color:var(--text-2);max-width:680px}
.sec-head{margin-bottom:44px}
.sec-head-row{display:flex;justify-content:space-between;align-items:flex-end;gap:24px;flex-wrap:wrap}

/* ============ Hero ============ */
.hero{
  padding:calc(var(--nav-h) + 56px) 0 72px;
  position:relative;overflow:hidden;
  background:linear-gradient(180deg,#FCFBF8 0%,var(--paper) 100%);
}
.hero::before{
  content:"";position:absolute;top:0;right:0;width:46%;height:100%;
  background-image:linear-gradient(rgba(16,64,59,.08) 1px,transparent 1px),linear-gradient(90deg,rgba(16,64,59,.08) 1px,transparent 1px);
  background-size:44px 44px;opacity:.7;pointer-events:none;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 60%);
  mask-image:linear-gradient(90deg,transparent,#000 60%);
}
.hero .container{position:relative;z-index:1}
.hero-kicker{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:1px;
  color:var(--deep-light);background:rgba(127,200,169,.22);border-radius:999px;padding:7px 14px;margin-bottom:20px;
}
.hero h1{font-size:44px;line-height:1.25;font-weight:700;letter-spacing:.2px}
.hero-sub{margin-top:18px;font-size:17px;line-height:1.8;color:var(--text-2);max-width:520px}
.hero-actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.hero-tags{display:flex;gap:10px;flex-wrap:wrap;margin-top:32px}
.hero-tags li{
  font-size:12px;letter-spacing:.4px;color:var(--deep);background:#fff;border:1px solid var(--line);
  border-radius:999px;padding:7px 14px;font-weight:500;
}
.hero-visual{position:relative}
.hero-visual img{width:100%;aspect-ratio:16/10;border-radius:var(--r-img);box-shadow:var(--sh-2)}
.hero-badge{
  position:absolute;left:-14px;bottom:22px;background:var(--deep);color:#fff;
  border-radius:8px;padding:12px 16px;font-family:var(--mono);font-size:13px;letter-spacing:1px;
  box-shadow:var(--sh-2);
}
.hero-badge b{display:block;font-size:20px;letter-spacing:0;font-family:var(--bs-font-sans-serif);font-weight:700}

/* ============ 信任条 ============ */
.trust{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:#FCFBF8}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:0}
.trust-item{
  padding:26px 22px;display:flex;align-items:center;gap:12px;border-right:1px solid var(--line);
  font-size:15px;font-weight:600;color:var(--deep);
}
.trust-item:last-child{border-right:0}
.trust-item i{color:var(--clay);font-size:16px}

/* ============ 对比表 ============ */
.cmp-wrap{border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;background:#fff}
.cmp-table{width:100%;border-collapse:collapse;margin:0}
.cmp-table thead th{
  background:var(--deep);color:#fff;font-size:14px;font-weight:600;letter-spacing:.4px;
  padding:0 20px;height:56px;text-align:center;border:0;white-space:nowrap;
}
.cmp-table thead th:first-child{text-align:left}
.cmp-table tbody th{
  text-align:left;font-size:15px;font-weight:600;color:var(--text);padding:0 20px;height:56px;border:0;
}
.cmp-table tbody td{
  text-align:center;font-size:15px;color:var(--text-2);padding:0 20px;height:56px;border:0;
}
.cmp-table tbody tr:nth-child(even){background:rgba(16,64,59,.04)}
.cmp-table tbody tr + tr{border-top:1px solid var(--line)}
.cmp-yes{color:var(--clay);font-weight:700}
.cmp-no{color:var(--text-3)}
.cmp-note{margin-top:18px;display:flex;justify-content:space-between;align-items:center;gap:18px;flex-wrap:wrap;font-size:14px;color:var(--text-2)}
.cmp-switch{display:inline-flex;border:1px solid var(--line);border-radius:999px;overflow:hidden;background:#fff}
.cmp-switch span{padding:7px 18px;font-size:13px;font-weight:600;color:var(--text-2)}
.cmp-switch span.on{background:var(--deep);color:#fff}
.cmp-cards{display:none}

/* ============ 等级阶梯 ============ */
.level-list{display:flex;flex-direction:column;gap:16px}
.level-row{
  display:grid;grid-template-columns:120px 1fr 1.15fr;gap:32px;align-items:center;
  padding:28px;border-radius:var(--r-card);border:1px solid var(--line);background:#fff;
  border-left:3px solid var(--clay);position:relative;transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.level-row:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.level-row.lv2{background:#F1F6F3}
.level-row.lv3{background:var(--ink);border-color:var(--ink);border-left-color:var(--clay);color:#E7EFEC}
.level-row.lv3 .lv-name,.level-row.lv3 .lv-desc{color:#fff}
.level-row.lv3 .lv-desc{color:#B9C8C4}
.lv-idx{font-family:var(--mono);font-size:28px;font-weight:600;color:var(--clay);letter-spacing:1px}
.lv-name{font-size:20px;font-weight:600;margin-bottom:6px}
.lv-desc{font-size:14px;color:var(--text-2)}
.lv-points{display:flex;flex-wrap:wrap;gap:0}
.lv-points li{
  font-size:14px;color:var(--text-2);padding:2px 16px;border-left:1px solid var(--line);position:relative;
}
.level-row.lv3 .lv-points li{color:#D6E2DE;border-left-color:rgba(255,255,255,.22)}
.lv-points li:first-child{border-left:0;padding-left:0}
.lv-badge{
  position:absolute;top:16px;right:16px;background:var(--clay);color:#fff;font-size:12px;font-weight:600;
  letter-spacing:.5px;border-radius:4px;padding:5px 10px;
}

/* ============ 内容预览网格 ============ */
.spot-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.spot-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px;
  display:flex;flex-direction:column;transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.spot-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2)}
.spot-card:first-child{grid-column:span 2;grid-row:span 2}
.spot-card:first-child .spot-body p{font-size:15px}
.spot-card img{width:100%;aspect-ratio:16/9;margin-bottom:16px}
.spot-tag{
  align-self:flex-start;font-size:12px;letter-spacing:.4px;font-weight:600;color:var(--deep);
  background:rgba(127,200,169,.32);border-radius:999px;padding:5px 12px;margin-bottom:12px;
}
.spot-body{flex:1 1 auto}
.spot-body h3{font-size:20px;line-height:1.45;margin-bottom:8px}
.spot-card:first-child .spot-body h3{font-size:24px}
.spot-body p{font-size:14px;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.spot-foot{padding-top:16px;margin-top:16px;border-top:1px solid var(--line)}

/* ============ 资讯列表 ============ */
.news-tabs{display:flex;gap:10px;flex-wrap:wrap}
.news-tabs span{
  font-size:13px;font-weight:600;padding:7px 16px;border-radius:999px;border:1px solid var(--line);
  color:var(--text-2);background:#fff;
}
.news-tabs span.on{background:var(--deep);border-color:var(--deep);color:#fff}
.news-list{border-top:1px solid var(--line);margin-top:28px}
.news-row{border-bottom:1px solid var(--line)}
.news-link{display:flex;align-items:center;gap:24px;padding:22px 0;color:inherit}
.news-link:hover{color:inherit}
.news-thumb{flex:0 0 160px}
.news-thumb img{width:160px;aspect-ratio:4/3}
.news-body{flex:1 1 auto;min-width:0}
.news-title{font-size:18px;font-weight:600;line-height:1.5;margin-bottom:6px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-sum{font-size:14px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:1;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{flex:0 0 auto;display:flex;flex-direction:column;align-items:flex-end;gap:8px}
.badge-tag{font-size:12px;font-weight:600;color:var(--deep);background:rgba(127,200,169,.32);border-radius:999px;padding:5px 12px}
.news-meta time{font-size:13px;color:var(--text-3);font-family:var(--mono)}
.news-row:hover .news-title{color:var(--deep)}
.news-row:hover .news-thumb img{transform:scale(1.02)}
.news-thumb img{transition:transform .18s ease-out}
.news-empty{
  min-height:200px;border:1px dashed var(--line);border-radius:var(--r-card);background:#fff;
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;padding:36px;margin-top:28px;
}
.empty-box{width:56px;height:56px;border:1px solid var(--line);border-radius:8px;background:#F4F7F5}
.news-empty p{font-size:15px;color:var(--text-2)}

/* ============ FAQ ============ */
.faq-sec{border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.accordion-item{
  border:1px solid var(--line);border-radius:var(--r-card);background:#fff;margin-bottom:12px;overflow:hidden;
}
.accordion-button{
  display:flex;align-items:center;gap:14px;width:100%;background:#fff;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--text);padding:20px 22px;line-height:1.6;box-shadow:none;
}
.accordion-button:not(.collapsed){color:var(--deep);background:#fff;box-shadow:none}
.accordion-button:focus{box-shadow:none;outline:2px solid var(--clay);outline-offset:-2px}
.accordion-button::after{
  content:"+";background-image:none;width:auto;height:auto;font-family:var(--mono);font-size:22px;
  color:var(--clay);line-height:1;margin-left:auto;transition:transform .18s ease-out;transform:none;
}
.accordion-button:not(.collapsed)::after{background-image:none;transform:rotate(45deg)}
.faq-idx{font-family:var(--mono);font-size:13px;color:var(--clay);font-weight:600;flex:0 0 auto}
.accordion-body{padding:0 22px 22px 58px;font-size:15px;line-height:1.9;color:var(--text-2)}

/* ============ CTA ============ */
.cta-sec{background:var(--ink);color:#E7EFEC;padding:96px 0;position:relative;overflow:hidden}
.cta-sec::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;opacity:.14;
}
.cta-sec .container{position:relative;z-index:1}
.cta-copy h2{color:#fff;font-size:30px;line-height:1.4;display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.cta-copy h2::before{content:"";width:16px;height:16px;border-radius:4px;background:var(--clay);flex:0 0 auto}
.cta-copy p{margin-top:16px;font-size:15px;line-height:1.9;color:#B9C8C4;max-width:460px}
.cta-points{margin-top:26px;display:flex;flex-direction:column;gap:12px}
.cta-points li{font-size:15px;color:#D6E2DE;display:flex;align-items:center;gap:10px}
.cta-points i{color:var(--mint);font-size:14px}
.join-card{background:#fff;border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-2);color:var(--text)}
.join-card h3{font-size:20px;margin-bottom:6px}
.join-card .jc-sub{font-size:14px;color:var(--text-2);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:14px;font-weight:600;margin-bottom:8px;color:var(--text)}
.form-control,.form-select{
  width:100%;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  padding:0 14px;font-size:15px;color:var(--text);background:#fff;box-shadow:none;
}
.form-control:focus,.form-select:focus{border-color:var(--deep);box-shadow:0 0 0 2px rgba(16,64,59,.15);outline:none}
.code-row{display:flex;gap:10px}
.code-row .form-control{flex:1 1 auto}
.code-btn{
  flex:0 0 auto;height:44px;padding:0 16px;border:1px solid var(--line);background:#F4F7F5;
  border-radius:var(--r-btn);font-size:14px;font-weight:600;color:var(--deep);
}
.code-btn:hover{background:#E8F0EC}
.check-row{display:flex;align-items:flex-start;gap:10px;margin:18px 0 20px;font-size:13px;color:var(--text-2);line-height:1.7}
.check-row input{width:18px;height:18px;margin-top:3px;accent-color:var(--deep);flex:0 0 auto}
.form-note{margin-top:16px;font-size:13px;line-height:1.8;color:var(--text-2)}

/* ============ 页脚 ============ */
.site-footer{background:var(--deep);color:#D6E2DE;padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand .brand-text{color:#fff;font-size:18px}
.footer-brand .brand-mark{background:#fff}
.footer-brand .brand-mark::after{background:var(--clay)}
.footer-desc{margin-top:18px;font-size:14px;line-height:1.9;color:#A9BCB7;max-width:320px}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-links{display:flex;flex-direction:column;gap:11px}
.footer-links a{font-size:14px;color:#B9C8C4}
.footer-links a:hover{color:#fff}
.footer-contact p{font-size:14px;color:#B9C8C4;line-height:1.9}
.footer-contact .btn-ghost{border-color:rgba(255,255,255,.4);color:#fff;margin-top:16px}
.footer-contact .btn-ghost:hover{background:#fff;color:var(--deep);border-color:#fff}
.footer-bottom{
  margin-top:56px;border-top:1px solid rgba(255,255,255,.14);padding:22px 0;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:#8FA5A0;
}
.footer-bottom a{color:#8FA5A0}
.footer-bottom a:hover{color:#fff}

/* ============ 抽屉 ============ */
.offcanvas{background:var(--paper);border:0}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px}
.offcanvas-body{padding:0}
.drawer-list a{
  display:flex;align-items:center;justify-content:space-between;height:52px;padding:0 20px;
  border-bottom:1px solid var(--line);font-size:15px;font-weight:500;color:var(--text);
}
.drawer-list a.is-active{color:var(--deep);font-weight:600;border-left:3px solid var(--clay);padding-left:17px}
.drawer-list a:hover{background:#EFF4F1}
.drawer-foot{padding:20px;display:flex;flex-direction:column;gap:12px}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .hero h1{font-size:38px}
  .hero::before{width:70%;opacity:.5}
}
@media (max-width:991.98px){
  .sec{padding:72px 0}
  .sec-tight{padding:56px 0}
  .hero{padding:calc(var(--nav-h) + 40px) 0 56px}
  .hero h1{font-size:32px}
  .hero-visual{margin-top:12px}
  .hero-visual img{aspect-ratio:16/10;max-height:280px}
  .hero-badge{left:12px;bottom:12px}
  .hero::before{display:none}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
  .trust-item:nth-child(2){border-right:0}
  .trust-item:nth-child(1),.trust-item:nth-child(2){border-bottom:1px solid var(--line)}
  .level-row{grid-template-columns:1fr;gap:14px;padding:24px}
  .lv-idx{font-size:22px}
  .spot-grid{grid-template-columns:repeat(2,1fr)}
  .spot-card:first-child{grid-column:span 2;grid-row:auto}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:32px}
  .cta-sec{padding:72px 0}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px}
  .sec{padding:56px 0}
  .sec-title{font-size:24px}
  .hero h1{font-size:30px}
  .hero-sub{font-size:15px}
  .cxmp-thead{display:none}
  .cmp-wrap{display:none}
  .cmp-cards{display:flex;flex-direction:column;gap:16px}
  .cmp-card{background:#fff;border:1px solid var(--line);border-radius:var(--r-card);padding:20px}
  .cmp-card h3{font-size:18px;margin-bottom:6px}
  .cmp-card .lv-desc{margin-bottom:14px;font-size:14px}
  .cmp-card ul{display:flex;flex-direction:column;gap:10px}
  .cmp-card li{font-size:14px;color:var(--text-2);display:flex;justify-content:space-between;gap:12px;padding-bottom:10px;border-bottom:1px solid var(--line)}
  .cmp-card li:last-child{border-bottom:0;padding-bottom:0}
  .cmp-card li b{font-weight:600;color:var(--text);flex:0 0 auto}
  .news-thumb{flex:0 0 96px}
  .news-thumb img{width:96px}
  .news-link{gap:16px;align-items:flex-start}
  .news-meta{align-items:flex-start;gap:6px}
  .news-sum{display:none}
  .spot-grid{grid-template-columns:1fr}
  .spot-card:first-child{grid-column:span 1}
  .accordion-body{padding:0 20px 20px 20px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-sec{padding:56px 0}
  .cta-copy h2{font-size:24px}
  .join-card{padding:20px;margin-top:28px}
}
@media (max-width:519.98px){
  .hero-actions .btn{width:100%}
  .trust-grid{grid-template-columns:1fr}
  .trust-item{border-right:0;border-bottom:1px solid var(--line)}
  .trust-item:last-child{border-bottom:0}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important}
  .btn:hover,.spot-card:hover,.level-row:hover{transform:none!important}
}

/* roulang page: article */
:root{
  --deep:#10403B;
  --deep-hover:#0C322E;
  --deep-light:#1E5C52;
  --mint:#7FC8A9;
  --clay:#D97A34;
  --clay-light:#F0DCC8;
  --paper:#F7F5F0;
  --ink:#0B1F1C;
  --card:#FFFFFF;
  --text:#1B2320;
  --text-2:#5C6663;
  --text-3:#8A938F;
  --line:rgba(16,64,59,.12);
  --line-strong:rgba(16,64,59,.22);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-sm:0 1px 2px rgba(11,31,28,.06);
  --shadow-md:0 12px 28px rgba(11,31,28,.10);
  --mono:"SFMono-Regular",Menlo,Consolas,"Liberation Mono","Courier New",monospace;
  --bs-primary:#10403B;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1B2320;
  --bs-border-color:rgba(16,64,59,.12);
  --bs-border-radius:10px;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --bs-link-color:#10403B;
  --bs-link-hover-color:#D97A34;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--bs-font-sans-serif);
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--deep);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--clay);}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--ink);letter-spacing:0;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
:focus-visible{outline:2px solid var(--clay);outline-offset:2px;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;}
@media (max-width:575.98px){.container{padding-left:16px;padding-right:16px;}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,245,240,.94);
  backdrop-filter:saturate(150%) blur(6px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease-out,background .2s ease-out;
}
.site-header.is-scrolled{background:#FFFFFF;box-shadow:0 6px 20px rgba(11,31,28,.08);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;min-height:64px;gap:16px;}
.nav-left{display:flex;align-items:center;gap:36px;min-width:0;}
.brand{display:inline-flex;align-items:center;gap:10px;color:var(--ink);font-weight:700;}
.brand:hover{color:var(--deep);}
.brand-mark{
  width:24px;height:24px;border-radius:4px;flex:0 0 24px;
  background:linear-gradient(135deg,var(--deep) 0%,var(--deep-light) 58%,var(--mint) 100%);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.35);
}
.brand-text{font-size:18px;font-weight:700;line-height:1;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:28px;margin:0;}
.nav-links a{
  position:relative;font-size:15px;font-weight:500;color:var(--text-2);padding:6px 0;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:var(--clay);transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out;
}
.nav-links a:hover{color:var(--deep);}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--deep);font-weight:600;}
.nav-right{display:flex;align-items:center;gap:12px;}
.search-btn{
  align-items:center;gap:8px;height:40px;padding:0 14px;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-btn);
  color:var(--text-2);font-size:14px;font-weight:500;cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out,border-color .18s ease-out;
}
.search-btn:hover{background:rgba(127,200,169,.20);color:var(--deep);border-color:transparent;}
.menu-btn{
  width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-btn);color:var(--deep);
}
.menu-btn:hover{background:rgba(16,64,59,.06);}

/* ---------- buttons ---------- */
.btn{transition:transform .18s ease-out,background .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;}
.btn-main,.btn-ghost,.btn-outline-ink{font-weight:600;border-radius:var(--r-btn);}
.btn-main{
  background:var(--deep);color:#fff;border:1px solid var(--deep);
  font-size:15px;padding:12px 24px;box-shadow:var(--shadow-sm);
}
.btn-main:hover,.btn-main:focus{background:var(--deep-hover);border-color:var(--deep-hover);color:#fff;transform:translateY(-2px);}
.btn-main:active{transform:translateY(0);}
.btn-sm.btn-main{padding:0 18px;height:40px;display:inline-flex;align-items:center;font-size:14px;}
.btn-ghost{
  background:transparent;color:var(--deep);border:1px solid var(--deep);
  font-size:15px;padding:12px 24px;
}
.btn-ghost:hover{background:var(--deep);color:#fff;transform:translateY(-2px);}
.btn-ghost.btn-sm{padding:0 18px;height:40px;display:inline-flex;align-items:center;font-size:14px;}
.btn-outline-ink{
  background:transparent;color:#fff;border:1px solid rgba(255,255,255,.55);
  font-size:15px;padding:12px 24px;
}
.btn-outline-ink:hover{background:rgba(255,255,255,.14);color:#fff;border-color:#fff;transform:translateY(-2px);}
.link-more{
  display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:600;color:var(--deep);
}
.link-more i{transition:transform .18s ease-out;}
.link-more:hover i{transform:translateX(4px);}

/* ---------- tag & badge ---------- */
.tag{
  display:inline-block;background:rgba(127,200,169,.28);color:var(--deep);
  font-size:12px;font-weight:600;letter-spacing:.04em;
  padding:5px 12px;border-radius:999px;line-height:1.4;
}
.tag-clay{background:var(--clay-light);color:#8A4A16;}
.stamp{
  display:inline-block;width:16px;height:16px;border-radius:4px;background:var(--clay);
}
.sec-no{
  font-family:var(--mono);font-size:13px;letter-spacing:.12em;color:var(--clay);
  display:flex;align-items:center;gap:10px;margin-bottom:14px;
}
.sec-no::after{content:"";width:36px;height:1px;background:var(--line-strong);}

/* ---------- article head ---------- */
.article-head{padding:28px 0 34px;border-bottom:1px solid var(--line);}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--text-3);margin-bottom:20px;
}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--deep);}
.crumb span.sep{color:rgba(138,147,143,.7);}
.crumb .crumb-current{color:var(--deep);font-weight:600;max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.article-title{
  font-size:44px;line-height:1.25;font-weight:700;margin:14px 0 0;
  max-width:900px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px 18px;
  margin-top:18px;font-size:14px;color:var(--text-2);
}
.article-meta .mt-item{display:inline-flex;align-items:center;gap:7px;}
.article-meta .mt-item i{color:var(--mint);font-size:13px;}
.article-meta .mt-div{width:1px;height:14px;background:var(--line-strong);}

/* ---------- cover ---------- */
.article-cover{padding:34px 0 0;}
.cover-frame{
  position:relative;width:100%;aspect-ratio:21/9;overflow:hidden;
  border-radius:var(--r-img);background:var(--deep);box-shadow:var(--shadow-sm);
}
.cover-frame img{width:100%;height:100%;object-fit:cover;}
.cover-caption{
  margin-top:10px;font-size:13px;color:var(--text-3);line-height:1.6;
}

/* ---------- layout ---------- */
.article-layout{padding:48px 0 0;}
.article-body{
  max-width:760px;margin:0 auto;
  font-size:16px;line-height:1.85;color:var(--text);
}
.prose>*:first-child{margin-top:0;}
.prose p{margin:0 0 1.2em;}
.prose h2{
  font-size:30px;line-height:1.35;margin:40px 0 16px;
  padding-left:14px;border-left:3px solid var(--clay);
}
.prose h3{font-size:20px;line-height:1.5;font-weight:600;margin:32px 0 12px;}
.prose h4{font-size:17px;font-weight:600;margin:24px 0 10px;color:var(--deep);}
.prose ul,.prose ol{margin:0 0 1.3em;padding-left:0;}
.prose ul li,.prose ol li{position:relative;padding-left:22px;margin-bottom:10px;line-height:1.9;}
.prose ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:6px;height:6px;border-radius:50%;
  background:var(--mint);
}
.prose ol{counter-reset:li;}
.prose ol li{counter-increment:li;}
.prose ol li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;left:0;top:0;font-family:var(--mono);font-size:13px;
  color:var(--clay);font-weight:600;
}
.prose blockquote{
  margin:26px 0;padding:18px 22px;background:rgba(30,92,82,.06);
  border-left:3px solid var(--deep);border-radius:0 var(--r-btn) var(--r-btn) 0;
  color:var(--text-2);font-size:15.5px;line-height:1.9;
}
.prose blockquote p:last-child{margin-bottom:0;}
.prose img{border-radius:var(--r-img);margin:22px auto;}
.prose figure{margin:26px 0;}
.prose figure img{margin:0 auto;}
.prose figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;}
.prose pre{
  background:var(--ink);color:#E7EFEA;border-radius:var(--r-btn);
  padding:18px 20px;overflow-x:auto;font-family:var(--mono);font-size:13.5px;line-height:1.8;margin:22px 0;
}
.prose code{
  font-family:var(--mono);font-size:14px;background:rgba(16,64,59,.08);
  padding:2px 6px;border-radius:4px;color:var(--deep-light);
}
.prose pre code{background:transparent;color:inherit;padding:0;}
.prose table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.prose th,.prose td{border:1px solid var(--line);padding:10px 14px;text-align:left;}
.prose th{background:rgba(16,64,59,.05);font-weight:600;}
.prose hr{border:0;border-top:1px solid var(--line);margin:34px 0;}
.prose strong{font-weight:600;color:var(--ink);}
.prose a{border-bottom:1px solid rgba(217,122,52,.5);}

/* ---------- empty ---------- */
.empty-state{
  border:1px dashed var(--line-strong);border-radius:var(--r-card);
  background:#fff;padding:52px 28px;text-align:center;
}
.empty-mark{
  width:74px;height:74px;margin:0 auto 18px;border:1px solid var(--line-strong);
  border-radius:var(--r-btn);position:relative;
}
.empty-mark::before,.empty-mark::after{
  content:"";position:absolute;background:var(--line-strong);
}
.empty-mark::before{left:16px;right:16px;top:26px;height:1px;}
.empty-mark::after{left:16px;right:16px;top:42px;height:1px;}
.empty-state h2{font-size:22px;margin-bottom:10px;}
.empty-state p{color:var(--text-2);font-size:15px;max-width:420px;margin:0 auto 20px;}

/* ---------- tags & pager ---------- */
.article-foot-tags{
  max-width:760px;margin:44px auto 0;padding-top:24px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
}
.article-foot-tags .label{font-size:13px;color:var(--text-3);letter-spacing:.08em;margin-right:4px;}
.pager{
  max-width:760px;margin:24px auto 0;display:flex;flex-wrap:wrap;gap:14px;
  justify-content:space-between;font-size:15px;
}
.pager a{display:inline-flex;align-items:center;gap:8px;color:var(--text-2);}
.pager a:hover{color:var(--clay);}
.pager a.prev::before{content:"\2039";font-size:18px;line-height:1;}
.pager a.next::after{content:"\203A";font-size:18px;line-height:1;}

/* ---------- related ---------- */
.section{padding:72px 0;}
.section-head{margin-bottom:32px;}
.section-head h2{font-size:30px;line-height:1.35;}
.section-head .sub{margin-top:10px;color:var(--text-2);font-size:15px;max-width:640px;}
.related-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px;}
.card-item{
  display:flex;flex-direction:column;height:100%;background:#fff;
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.card-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:rgba(16,64,59,.18);}
.card-thumb{width:100%;aspect-ratio:16/9;overflow:hidden;background:rgba(16,64,59,.08);}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.card-item:hover .card-thumb img{transform:scale(1.02);}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{font-size:18px;line-height:1.5;font-weight:600;}
.card-body p{font-size:14px;color:var(--text-2);margin:0;line-height:1.75;}
.card-meta{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--text-3);padding-top:12px;border-top:1px solid var(--line);
}
.card-meta i{transition:transform .18s ease-out;}
.card-item:hover .card-meta i{transform:translateX(4px);color:var(--clay);}

/* ---------- back strip ---------- */
.back-strip{
  background:var(--ink);color:rgba(255,255,255,.82);
  border-radius:var(--r-card);padding:38px 34px;
  display:flex;flex-wrap:wrap;gap:22px;align-items:center;justify-content:space-between;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:36px 36px;
}
.back-strip h2{color:#fff;font-size:24px;line-height:1.4;margin-bottom:8px;}
.back-strip p{margin:0;font-size:14.5px;max-width:520px;color:rgba(255,255,255,.72);}
.back-strip .actions{display:flex;gap:12px;flex-wrap:wrap;}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:rgba(255,255,255,.78);padding:64px 0 26px;margin-top:72px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand .brand{color:#fff;}
.footer-brand .brand-text{color:#fff;}
.footer-desc{font-size:14px;line-height:1.85;margin:16px 0 0;color:rgba(255,255,255,.68);max-width:340px;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;letter-spacing:.04em;}
.footer-links{display:flex;flex-direction:column;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;}
.footer-contact p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);margin:0 0 16px;}
.site-footer .btn-ghost{color:#fff;border-color:rgba(255,255,255,.5);}
.site-footer .btn-ghost:hover{background:#fff;color:var(--deep);border-color:#fff;}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  font-size:13px;color:rgba(255,255,255,.55);
}

/* ---------- drawer ---------- */
.menu-drawer{background:var(--paper);width:320px;color:var(--text);}
.menu-drawer .offcanvas-header{padding:16px 20px;border-bottom:1px solid var(--line);}
.drawer-close{
  width:36px;height:36px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:transparent;color:var(--deep);
}
.drawer-close:hover{background:rgba(16,64,59,.06);}
.menu-drawer .offcanvas-body{padding:8px 0 24px;}
.drawer-link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 20px;font-size:15px;font-weight:500;
  color:var(--text);border-bottom:1px solid var(--line);
}
.drawer-link:hover{background:rgba(127,200,169,.16);color:var(--deep);}
.drawer-link i{color:var(--text-3);font-size:12px;}
.drawer-foot{padding:20px;}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .nav-links{gap:22px;}
}
@media (max-width:991.98px){
  .article-title{font-size:34px;}
  .section{padding:56px 0;}
  .section-head h2,.prose h2{font-size:24px;}
  .related-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .article-head{padding:20px 0 26px;}
  .cover-frame{aspect-ratio:16/9;}
}
@media (max-width:767.98px){
  .article-title{font-size:30px;}
  .prose h2{font-size:22px;}
  .prose h3{font-size:18px;}
  .article-body{font-size:16px;}
  .section{padding:56px 0;}
  .back-strip{padding:28px 22px;border-radius:var(--r-card);}
  .back-strip h2{font-size:20px;}
  .pager{flex-direction:column;gap:10px;}
}
@media (max-width:575.98px){
  .related-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .article-meta{gap:6px 14px;}
  .article-meta .mt-div{display:none;}
  .cover-frame{aspect-ratio:16/10;}
  .article-cover{padding-top:24px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
  .card-item:hover,.btn:hover{transform:none !important;}
  .card-item:hover .card-thumb img{transform:none !important;}
}

/* roulang page: category1 */
:root{
  --deep:#10403B;
  --deep-hover:#0C322E;
  --deep-light:#1E5C52;
  --mint:#7FC8A9;
  --clay:#D97A34;
  --clay-light:#F0DCC8;
  --paper:#F7F5F0;
  --ink:#0B1F1C;
  --card:#FFFFFF;
  --text:#1B2320;
  --text-2:#5C6663;
  --text-3:#8A938F;
  --line:rgba(16,64,59,0.12);
  --line-strong:rgba(16,64,59,0.20);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --shadow-1:0 1px 2px rgba(11,31,28,0.06);
  --shadow-2:0 12px 28px rgba(11,31,28,0.10);
  --sp-section:96px;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-mono:ui-monospace,SFMono-Regular,Menlo,Consolas,"Courier New",monospace;
  --bs-primary:#10403B;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1B2320;
  --bs-border-color:rgba(16,64,59,0.12);
  --bs-border-radius:10px;
  --bs-font-sans-serif:var(--font-sans);
  --bs-link-color:#10403B;
  --bs-link-hover-color:#D97A34;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color 180ms ease-out;}
a:hover{color:var(--deep-light);}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
::selection{background:var(--clay-light);color:var(--ink);}
:focus-visible{outline:2px solid var(--clay);outline-offset:2px;}

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

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(247,245,240,0.96);
  border-bottom:1px solid var(--line);
  transition:background 180ms ease-out,box-shadow 180ms ease-out;
}
.site-header.is-scrolled{
  background:#F2EFE8;
  box-shadow:0 6px 18px rgba(11,31,28,0.07);
}
.nav-wrap{
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.nav-left{display:flex;align-items:center;gap:40px;min-width:0;}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  width:24px;height:24px;border-radius:4px;
  background:var(--deep);
  position:relative;
  flex:0 0 24px;
}
.brand-mark::after{
  content:"";
  position:absolute;inset:6px;
  background:var(--clay);
  border-radius:1px;
}
.brand-text{
  font-size:18px;
  font-weight:700;
  letter-spacing:0.02em;
  color:var(--deep);
  white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  padding:6px 0;
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;left:0;right:0;bottom:0;
  height:2px;background:var(--clay);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform 180ms ease-out;
}
.nav-links a:hover{color:var(--deep);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--deep);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:14px;}
.search-btn{
  display:inline-flex;align-items:center;gap:8px;
  height:38px;padding:0 16px;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:transparent;
  color:var(--text-2);
  font-size:14px;
  transition:background 180ms ease-out,color 180ms ease-out,border-color 180ms ease-out;
}
.search-btn:hover{background:rgba(30,92,82,0.08);color:var(--deep);border-color:var(--line-strong);}
.menu-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  background:transparent;color:var(--deep);
}
.menu-btn:hover{background:rgba(30,92,82,0.08);}

/* ---------- 按钮 ---------- */
.btn{border-radius:var(--r-btn);font-weight:600;transition:all 180ms ease-out;border-width:1px;}
.btn-main{
  background:var(--deep);
  border:1px solid var(--deep);
  color:#fff;
  font-size:15px;
  padding:12px 24px;
}
.btn-main:hover{background:var(--deep-hover);border-color:var(--deep-hover);color:#fff;transform:translateY(-2px);}
.btn-main:active{transform:translateY(0);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn-ghost{
  background:transparent;
  border:1px solid var(--deep);
  color:var(--deep);
  font-size:15px;
  padding:12px 24px;
}
.btn-ghost:hover{background:var(--deep);color:#fff;transform:translateY(-2px);}
.btn-ghost-sm{
  background:transparent;border:1px solid rgba(255,255,255,0.4);color:#F2EFE8;
  padding:9px 18px;font-size:14px;border-radius:var(--r-btn);
}
.btn-ghost-sm:hover{background:rgba(255,255,255,0.12);color:#fff;}
.btn-text{
  display:inline-flex;align-items:center;gap:8px;
  color:var(--deep);font-weight:600;font-size:15px;
  background:none;border:none;padding:0;
}
.btn-text i{transition:transform 180ms ease-out;}
.btn-text:hover{color:var(--clay);}
.btn-text:hover i{transform:translateX(4px);}

/* ---------- 移动端抽屉 ---------- */
.offcanvas{
  background:var(--paper);
  border-right:1px solid var(--line);
  width:320px;
}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 22px;}
.offcanvas-title{font-size:17px;font-weight:700;color:var(--deep);}
.offcanvas-body{padding:0 0 24px;}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;padding:0 22px;
  font-size:15px;color:var(--text);
  border-bottom:1px solid var(--line);
}
.drawer-links a.is-active{color:var(--deep);font-weight:600;background:rgba(30,92,82,0.06);}
.drawer-links a i{color:var(--text-3);font-size:12px;}
.drawer-foot{padding:22px;display:flex;flex-direction:column;gap:14px;}
.drawer-search{
  display:flex;align-items:center;gap:10px;
  height:44px;padding:0 14px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:#fff;color:var(--text-3);
}

/* ---------- 分类头图 ---------- */
.page-hero{
  position:relative;
  height:220px;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(11,31,28,0.78),rgba(16,64,59,0.42));
}
.page-hero .container{position:relative;z-index:2;height:100%;display:flex;align-items:flex-end;}
.hero-inner{padding-bottom:28px;max-width:760px;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:0.14em;
  color:var(--clay-light);
  text-transform:uppercase;
  margin-bottom:12px;
}
.hero-badge::before{
  content:"";width:16px;height:16px;border-radius:4px;
  background:var(--clay);
}
.page-hero h1{
  font-size:44px;
  font-weight:700;
  line-height:1.25;
  color:#FBF9F5;
  letter-spacing:0.01em;
}
.page-hero p{
  margin-top:12px;
  font-size:15px;
  color:rgba(251,249,245,0.86);
  max-width:640px;
}

/* ---------- 面包屑 ---------- */
.crumb-bar{border-bottom:1px solid var(--line);background:rgba(255,255,255,0.6);}
.crumb-line{
  display:flex;align-items:center;gap:10px;
  padding:16px 0;
  font-size:14px;
  color:var(--text-3);
}
.crumb-line a{color:var(--text-3);}
.crumb-line a:hover{color:var(--deep);}
.crumb-line .sep{color:rgba(16,64,59,0.28);}
.crumb-line .current{color:var(--deep);font-weight:600;}

/* ---------- 主体布局 ---------- */
.section{padding:var(--sp-section) 0;}
.section-tight{padding:72px 0;}
.layout-grid{
  display:grid;
  grid-template-columns:264px 1fr;
  gap:56px;
  align-items:start;
}

/* 左侧目录 */
.side-toc{
  position:sticky;
  top:96px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 22px;
  box-shadow:var(--shadow-1);
}
.toc-title{
  display:flex;align-items:center;gap:8px;
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:0.14em;
  color:var(--text-3);
  margin-bottom:16px;
}
.toc-title::before{content:"";width:16px;height:16px;border-radius:4px;background:var(--clay);}
.toc-list li+li{margin-top:2px;}
.toc-list a{
  display:block;
  padding:9px 12px;
  font-size:14.5px;
  color:var(--text-2);
  border-left:2px solid transparent;
  border-radius:0 8px 8px 0;
  transition:all 180ms ease-out;
}
.toc-list a:hover{background:rgba(30,92,82,0.06);color:var(--deep);border-left-color:var(--mint);}
.toc-list a.is-current{background:rgba(217,122,52,0.09);color:var(--deep);font-weight:600;border-left-color:var(--clay);}
.toc-note{
  margin-top:20px;padding-top:18px;
  border-top:1px solid var(--line);
  font-size:13.5px;color:var(--text-3);line-height:1.75;
}
.toc-cta{margin-top:16px;width:100%;justify-content:center;display:flex;}

/* 右栏长文 */
.article-body{max-width:820px;}
.block{padding-bottom:56px;}
.block:last-child{padding-bottom:0;}
.block-head{
  display:flex;align-items:center;gap:12px;
  margin-bottom:18px;
}
.seal{width:16px;height:16px;border-radius:4px;background:var(--clay);flex:0 0 16px;}
.block-num{
  font-family:var(--font-mono);
  font-size:13px;letter-spacing:0.12em;
  color:var(--text-3);
}
.block h2{
  font-size:30px;
  font-weight:700;
  line-height:1.35;
  color:var(--deep);
  margin-bottom:14px;
}
.block h2 + p.lede{
  font-size:16px;
  color:var(--text-2);
  margin-bottom:20px;
}
.block p{color:var(--text-2);margin-bottom:16px;}
.block p strong{color:var(--text);font-weight:600;}
.block h3{
  font-size:20px;font-weight:600;color:var(--deep);
  margin:28px 0 10px;line-height:1.5;
}
.figure{
  margin:26px 0 30px;
  border-radius:var(--r-img);
  overflow:hidden;
  border:1px solid var(--line);
  background:var(--card);
}
.figure img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:0;}
.figure figcaption{
  padding:12px 18px;
  font-size:13px;
  color:var(--text-3);
  border-top:1px solid var(--line);
}

/* 竖线列表 */
.rail-list{margin:8px 0 20px;padding-left:18px;border-left:1px solid var(--line);}
.rail-list li{
  position:relative;
  padding:9px 0 9px 16px;
  font-size:15px;
  color:var(--text-2);
}
.rail-list li::before{
  content:"";
  position:absolute;left:-19px;top:19px;
  width:5px;height:5px;border-radius:50%;
  background:var(--clay);
}
.rail-list li b{color:var(--text);font-weight:600;}

/* 差异速查清单 */
.check-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:12px;
  margin:18px 0 8px;
}
.check-item{
  display:flex;gap:12px;
  background:var(--card);
  border:1px solid var(--line);
  border-left:3px solid var(--mint);
  border-radius:10px;
  padding:16px 18px;
  box-shadow:var(--shadow-1);
}
.check-item i{color:var(--deep);font-size:15px;margin-top:4px;}
.check-item span{font-size:14.5px;color:var(--text-2);line-height:1.7;}
.check-item b{display:block;color:var(--deep);font-weight:600;margin-bottom:2px;font-size:15px;}

/* 对照表 */
.matrix-wrap{
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  background:var(--card);
  box-shadow:var(--shadow-1);
  margin:24px 0 8px;
}
.matrix{width:100%;border-collapse:collapse;}
.matrix thead th{
  background:var(--deep);
  color:#F2EFE8;
  font-size:14.5px;
  font-weight:600;
  text-align:center;
  padding:0 18px;
  height:56px;
  white-space:nowrap;
}
.matrix thead th:first-child{text-align:left;}
.matrix tbody td{
  padding:16px 18px;
  font-size:14.5px;
  color:var(--text-2);
  border-top:1px solid var(--line);
  text-align:center;
  vertical-align:middle;
}
.matrix tbody td:first-child{
  text-align:left;
  color:var(--text);
  font-weight:600;
  font-size:15px;
}
.matrix tbody tr:nth-child(even){background:rgba(16,64,59,0.04);}
.matrix tbody tr:hover{background:rgba(127,200,169,0.14);}
.matrix .yes{color:var(--clay);font-weight:600;}
.matrix .no{color:var(--text-3);}
.matrix-caption{
  padding:14px 18px 0;
  font-size:13.5px;
  color:var(--text-3);
}

/* 适用场景 */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:20px;
  margin-top:22px;
}
.scene-card{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px 22px;
  box-shadow:var(--shadow-1);
  transition:transform 180ms ease-out,box-shadow 180ms ease-out;
}
.scene-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.scene-card .tag{
  display:inline-block;
  background:rgba(127,200,169,0.28);
  color:var(--deep);
  font-size:12px;
  letter-spacing:0.06em;
  padding:5px 10px;
  border-radius:999px;
  margin-bottom:14px;
}
.scene-card h3{font-size:17px;font-weight:600;color:var(--deep);margin-bottom:8px;}
.scene-card p{font-size:14.5px;color:var(--text-2);margin:0;}

/* 流程 */
.flow-list{counter-reset:flow;margin-top:20px;}
.flow-item{
  display:flex;gap:18px;
  padding:18px 0;
  border-bottom:1px solid var(--line);
}
.flow-item:last-child{border-bottom:none;}
.flow-num{
  font-family:var(--font-mono);
  font-size:13px;letter-spacing:0.1em;
  color:var(--clay);
  flex:0 0 44px;
  padding-top:3px;
}
.flow-body h3{font-size:17px;font-weight:600;color:var(--deep);margin:0 0 6px;}
.flow-body p{font-size:14.5px;color:var(--text-2);margin:0;}

/* FAQ */
.faq-list{max-width:900px;margin-top:24px;}
.faq-list .accordion-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:12px;
  overflow:hidden;
}
.faq-list .accordion-button{
  background:transparent;
  color:var(--deep);
  font-size:16px;
  font-weight:600;
  padding:20px 22px;
  border:none;
  box-shadow:none;
  display:flex;align-items:center;gap:14px;
}
.faq-list .accordion-button::after{display:none;}
.faq-list .accordion-button .q-num{
  font-family:var(--font-mono);
  font-size:13px;color:var(--text-3);
  flex:0 0 28px;
}
.faq-list .accordion-button .q-icon{
  margin-left:auto;
  color:var(--clay);
  font-size:15px;
  transition:transform 180ms ease-out;
}
.faq-list .accordion-button:not(.collapsed){color:var(--deep);}
.faq-list .accordion-button:not(.collapsed) .q-icon{transform:rotate(45deg);}
.faq-list .accordion-button:focus{box-shadow:none;outline:none;}
.faq-list .accordion-button:focus-visible{outline:2px solid var(--clay);outline-offset:-2px;}
.faq-list .accordion-body{
  padding:0 22px 22px 64px;
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
}
.faq-list .accordion-collapse{border-top:1px solid var(--line);}

/* 交叉链接 */
.cross-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
  margin-top:28px;
}
.cross-card{
  display:flex;flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-1);
  transition:transform 180ms ease-out,box-shadow 180ms ease-out;
}
.cross-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-2);}
.cross-card .thumb{overflow:hidden;}
.cross-card .thumb img{
  width:100%;aspect-ratio:16/9;object-fit:cover;
  transition:transform 220ms ease-out;
}
.cross-card:hover .thumb img{transform:scale(1.02);}
.cross-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:8px;flex:1;}
.cross-body .tag{
  align-self:flex-start;
  background:rgba(127,200,169,0.28);
  color:var(--deep);
  font-size:12px;letter-spacing:0.06em;
  padding:5px 10px;border-radius:999px;
}
.cross-body h3{font-size:17px;font-weight:600;color:var(--deep);line-height:1.5;margin:0;}
.cross-body p{font-size:14px;color:var(--text-2);margin:0;flex:1;}
.cross-body .btn-text{margin-top:6px;font-size:14px;}

/* CTA 深色区块 */
.cta-band{
  background:var(--ink);
  color:#EFEDE7;
  padding:80px 0;
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  opacity:0.10;
}
.cta-band .container{position:relative;z-index:2;}
.cta-grid{
  display:grid;
  grid-template-columns:1fr 420px;
  gap:56px;
  align-items:start;
}
.cta-band h2{
  font-size:30px;font-weight:700;line-height:1.35;
  color:#FBF9F5;margin-bottom:14px;
}
.cta-band .cta-lede{font-size:15.5px;color:rgba(239,237,231,0.78);margin-bottom:22px;max-width:520px;}
.cta-points{display:flex;flex-direction:column;gap:12px;border-left:1px solid rgba(255,255,255,0.18);padding-left:18px;}
.cta-points li{font-size:15px;color:rgba(239,237,231,0.88);display:flex;gap:10px;}
.cta-points i{color:var(--clay);margin-top:5px;font-size:13px;}
.form-card{
  background:var(--card);
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:0 18px 42px rgba(0,0,0,0.22);
}
.form-card h3{font-size:19px;font-weight:600;color:var(--deep);margin-bottom:6px;}
.form-card .form-note-sm{font-size:13.5px;color:var(--text-3);margin-bottom:20px;}
.form-field{margin-bottom:16px;}
.form-field label{
  display:block;
  font-size:13.5px;
  font-weight:500;
  color:var(--text-2);
  margin-bottom:7px;
}
.form-control,.form-select{
  height:44px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#FDFCFA;
  color:var(--text);
  font-size:15px;
  padding:0 14px;
  box-shadow:none;
}
.form-control:focus,.form-select:focus{
  border-color:var(--deep);
  box-shadow:0 0 0 1px var(--deep);
  background:#fff;
}
.form-check-input{
  width:18px;height:18px;
  border:1px solid var(--line-strong);
  border-radius:4px;
  margin-top:4px;
}
.form-check-input:checked{background-color:var(--deep);border-color:var(--deep);}
.form-check-input:focus{box-shadow:0 0 0 2px rgba(217,122,52,0.35);border-color:var(--clay);}
.form-check-label{font-size:13.5px;color:var(--text-2);line-height:1.7;}
.form-submit{width:100%;justify-content:center;margin-top:6px;}
.form-foot{
  margin-top:16px;padding-top:14px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.form-foot a{color:var(--deep);font-weight:600;}

/* 页脚 */
.site-footer{
  background:var(--deep);
  color:rgba(240,238,232,0.82);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.site-footer .brand-text{color:#FBF9F5;}
.site-footer .brand-mark{background:#F0DCC8;}
.site-footer .brand-mark::after{background:var(--deep);}
.footer-desc{
  margin-top:16px;
  font-size:14px;
  line-height:1.85;
  color:rgba(240,238,232,0.66);
  max-width:340px;
}
.footer-title{
  font-size:15px;font-weight:600;color:#FBF9F5;
  margin-bottom:16px;letter-spacing:0.02em;
}
.footer-links{display:flex;flex-direction:column;gap:11px;}
.footer-links a{font-size:14px;color:rgba(240,238,232,0.7);}
.footer-links a:hover{color:var(--clay-light);}
.footer-contact p{font-size:14px;line-height:1.85;color:rgba(240,238,232,0.66);margin-bottom:16px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.14);
  padding:20px 0 26px;
  display:flex;justify-content:space-between;gap:16px;
  font-size:13px;
  color:rgba(240,238,232,0.55);
}
.site-footer .btn-ghost-sm{color:#F2EFE8;}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .nav-wrap{height:64px;}
  .layout-grid{grid-template-columns:230px 1fr;gap:40px;}
  .cta-grid{grid-template-columns:1fr 380px;gap:40px;}
}
@media (max-width:991.98px){
  :root{--sp-section:72px;}
  .nav-wrap{height:60px;}
  .layout-grid{grid-template-columns:1fr;gap:32px;}
  .side-toc{position:static;top:auto;}
  .toc-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:4px;}
  .toc-list li+li{margin-top:0;}
  .scene-grid{grid-template-columns:1fr 1fr;}
  .cross-grid{grid-template-columns:1fr 1fr;}
  .cta-grid{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-hero h1{font-size:36px;}
  .block h2{font-size:26px;}
}
@media (max-width:767.98px){
  :root{--sp-section:56px;}
  .container{padding-left:16px;padding-right:16px;}
  .page-hero{height:190px;background-image:url('/assets/images/backpic/back-3.png');}
  .page-hero h1{font-size:30px;}
  .page-hero p{font-size:14px;}
  .crumb-line{flex-wrap:wrap;gap:6px;}
  .section{padding:56px 0;}
  .block h2{font-size:24px;}
  .check-list{grid-template-columns:1fr;}
  .scene-grid{grid-template-columns:1fr;}
  .cross-grid{grid-template-columns:1fr;}
  .cta-band{padding:56px 0;}
  .cta-band h2{font-size:24px;}
  .form-card{padding:22px;}
  .faq-list .accordion-body{padding-left:22px;padding-right:20px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  /* 对照表转堆叠卡片 */
  .matrix thead{display:none;}
  .matrix,.matrix tbody,.matrix tr,.matrix td{display:block;width:100%;}
  .matrix tbody tr{
    border-bottom:1px solid var(--line);
    padding:8px 0;
  }
  .matrix tbody tr:last-child{border-bottom:none;}
  .matrix tbody td{
    display:flex;align-items:center;justify-content:space-between;
    gap:14px;
    text-align:right;
    border-top:none;
    padding:10px 16px;
    font-size:14px;
  }
  .matrix tbody td:first-child{
    text-align:left;
    font-size:15px;
    color:var(--deep);
    padding-top:14px;
  }
  .matrix tbody td::before{
    content:attr(data-label);
    font-size:13px;
    color:var(--text-3);
    flex:0 0 auto;
    text-align:left;
  }
  .matrix tbody td:first-child::before{content:none;}
}
@media (max-width:575.98px){
  .page-hero{height:160px;}
  .page-hero h1{font-size:26px;}
  .toc-list{grid-template-columns:1fr;}
  .block h2{font-size:22px;}
  .block h3{font-size:18px;}
  .cta-points{padding-left:14px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
  .scene-card:hover,.cross-card:hover,.btn:hover,.cross-card:hover .thumb img{transform:none;}
}

/* roulang page: category2 */
:root{
  --deep:#10403B;
  --deep-hover:#0C322E;
  --deep-light:#1E5C52;
  --mint:#7FC8A9;
  --clay:#D97A34;
  --clay-soft:#F0DCC8;
  --paper:#F7F5F0;
  --ink:#0B1F1C;
  --card:#FFFFFF;
  --text:#1B2320;
  --text-2:#5C6663;
  --text-3:#8A938F;
  --line:rgba(16,64,59,0.12);
  --shadow-sm:0 1px 2px rgba(11,31,28,0.06);
  --shadow-md:0 12px 28px rgba(11,31,28,0.10);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --font-sans:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-mono:"SFMono-Regular",Menlo,Consolas,"Liberation Mono",monospace;

  --bs-primary:#10403B;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1B2320;
  --bs-border-color:rgba(16,64,59,0.12);
  --bs-border-radius:10px;
  --bs-font-sans-serif:-apple-system,BlinkMacSystemFont,"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--deep);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--deep-hover);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--clay);outline-offset:2px;}

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

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:var(--paper);
  border-bottom:1px solid var(--line);
  transition:box-shadow .18s ease-out,background-color .18s ease-out;
}
.site-header.is-scrolled{
  background:#F2EFE8;
  box-shadow:0 6px 18px rgba(11,31,28,0.08);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:64px;
}
.nav-left{display:flex;align-items:center;gap:40px;min-width:0;}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  color:var(--deep);
  font-weight:700;
  flex-shrink:0;
}
.brand:hover{color:var(--deep-hover);}
.brand-mark{
  position:relative;
  width:24px;
  height:24px;
  border-radius:4px;
  background:var(--deep);
  flex-shrink:0;
}
.brand-mark::after{
  content:"";
  position:absolute;
  right:-3px;
  bottom:-3px;
  width:9px;
  height:9px;
  border-radius:2px;
  background:var(--clay);
}
.brand-text{
  font-size:18px;
  font-weight:700;
  letter-spacing:0.2px;
  white-space:nowrap;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:6px 0;
  font-size:15px;
  font-weight:500;
  color:var(--text-2);
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  bottom:0;
  width:100%;
  height:2px;
  background:var(--clay);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .18s ease-out;
}
.nav-links a:hover{color:var(--deep);}
.nav-links a:hover::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--deep);font-weight:600;}
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-right{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.search-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:40px;
  padding:0 14px;
  font-size:14px;
  color:var(--text-2);
  background:transparent;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  transition:background-color .18s ease-out,color .18s ease-out;
}
.search-btn:hover{background:rgba(16,64,59,0.06);color:var(--deep);}
.menu-btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:40px;
  height:40px;
  color:var(--deep);
  background:transparent;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
}
.menu-btn:hover{background:rgba(16,64,59,0.06);}

/* 按钮 */
.btn-main{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:40px;
  padding:0 22px;
  font-size:15px;
  font-weight:600;
  color:#fff;
  background:var(--deep);
  border:1px solid var(--deep);
  border-radius:var(--r-btn);
  transition:background-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-main:hover{background:var(--deep-hover);border-color:var(--deep-hover);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-md);}
.btn-main:active{transform:translateY(0);}
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:40px;
  padding:0 22px;
  font-size:15px;
  font-weight:600;
  color:var(--deep);
  background:transparent;
  border:1px solid var(--deep);
  border-radius:var(--r-btn);
  transition:background-color .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.btn-ghost:hover{background:var(--deep);color:#fff;transform:translateY(-2px);}
.btn-ghost-light{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 24px;
  font-size:15px;
  font-weight:600;
  color:#F2EFE8;
  background:transparent;
  border:1px solid rgba(242,239,232,0.42);
  border-radius:var(--r-btn);
  transition:background-color .18s ease-out,color .18s ease-out,transform .18s ease-out;
}
.btn-ghost-light:hover{background:#F2EFE8;color:var(--ink);transform:translateY(-2px);}
.btn-clay{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:44px;
  padding:0 26px;
  font-size:15px;
  font-weight:600;
  color:#fff;
  background:var(--clay);
  border:1px solid var(--clay);
  border-radius:var(--r-btn);
  transition:background-color .18s ease-out,transform .18s ease-out,box-shadow .18s ease-out;
}
.btn-clay:hover{background:#C46A2A;border-color:#C46A2A;color:#fff;transform:translateY(-2px);box-shadow:0 12px 28px rgba(217,122,52,0.28);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-text{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 0;
  font-size:14px;
  font-weight:600;
  color:var(--deep);
  background:none;
  border:none;
}
.btn-text i{transition:transform .18s ease-out;}
.btn-text:hover i{transform:translateX(4px);}

/* 抽屉菜单 */
.offcanvas{background:var(--paper);}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.offcanvas-body{padding:8px 20px 28px;}
.m-nav li{border-bottom:1px solid var(--line);}
.m-nav a{display:flex;align-items:center;height:52px;font-size:16px;font-weight:500;color:var(--text-2);}
.m-nav a.is-active{color:var(--deep);font-weight:700;}
.m-nav a:hover{color:var(--deep);}
.m-actions{display:flex;flex-direction:column;gap:12px;margin-top:22px;}
.offcanvas .btn-close{filter:invert(18%) sepia(21%) saturate(900%) hue-rotate(120deg);opacity:.7;}

/* ============ 分类头图 ============ */
.cat-hero{
  position:relative;
  height:220px;
  overflow:hidden;
  border-radius:0 0 var(--r-img) var(--r-img);
}
.cat-hero-img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.cat-hero-mask{
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(11,31,28,0.78) 0%,rgba(16,64,59,0.52) 52%,rgba(16,64,59,0.30) 100%);
}
.cat-hero-inner{
  position:relative;
  z-index:2;
  height:100%;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding-bottom:32px;
}
.cat-hero-tag{
  display:inline-flex;
  align-items:center;
  align-self:flex-start;
  padding:4px 12px;
  margin-bottom:12px;
  font-size:12px;
  letter-spacing:.6px;
  color:#0B1F1C;
  background:var(--mint);
  border-radius:999px;
  font-weight:600;
}
.cat-hero h1{
  color:#FFFFFF;
  font-size:40px;
  line-height:1.25;
  font-weight:700;
  max-width:760px;
}
.cat-hero p{
  margin-top:10px;
  color:rgba(255,255,255,0.84);
  font-size:15px;
  max-width:640px;
}

/* ============ 通用板块 ============ */
.section{
  padding:96px 0;
}
.section-tight{
  padding:72px 0;
}
.section-lined{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.sec-head{
  max-width:760px;
  margin-bottom:44px;
}
.sec-num{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:1px;
  color:var(--clay);
  margin-bottom:14px;
}
.sec-num::after{
  content:"";
  width:36px;
  height:1px;
  background:var(--clay);
  opacity:.6;
}
.sec-title{
  position:relative;
  font-size:30px;
  line-height:1.35;
  font-weight:700;
  color:var(--deep);
  padding-left:22px;
}
.sec-title::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:10px;
  height:10px;
  border-radius:2px;
  background:var(--clay);
}
.sec-sub{
  margin-top:12px;
  font-size:15px;
  color:var(--text-2);
  padding-left:22px;
}
.sec-head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  max-width:none;
}

/* ============ 等级总览卡 ============ */
.level-sum-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.level-sum{
  display:flex;
  flex-direction:column;
  padding:28px;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--shadow-sm);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.level-sum:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.level-sum.is-featured{
  border-left:3px solid var(--clay);
}
.level-sum-code{
  font-family:var(--font-mono);
  font-size:13px;
  letter-spacing:1px;
  color:var(--text-3);
}
.level-sum h3{
  margin-top:10px;
  font-size:20px;
  font-weight:600;
  color:var(--deep);
}
.level-sum p{
  margin-top:10px;
  font-size:14px;
  color:var(--text-2);
  line-height:1.8;
}
.level-sum-list{
  margin-top:16px;
  padding-top:16px;
  border-top:1px solid var(--line);
  display:flex;
  flex-direction:column;
  gap:8px;
}
.level-sum-list li{
  position:relative;
  padding-left:16px;
  font-size:14px;
  color:var(--text-2);
}
.level-sum-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:11px;
  width:6px;
  height:6px;
  border-radius:2px;
  background:var(--mint);
}
.level-sum-foot{
  margin-top:auto;
  padding-top:20px;
  display:flex;
  align-items:center;
  justify-content:space-between;
}
.badge-soft{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  font-size:12px;
  letter-spacing:.4px;
  font-weight:600;
  color:var(--deep);
  background:rgba(127,200,169,0.30);
  border-radius:999px;
}
.badge-clay{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  font-size:12px;
  letter-spacing:.4px;
  font-weight:600;
  color:#7A3C0F;
  background:var(--clay-soft);
  border-radius:999px;
}

/* ============ 图文交替对照 ============ */
.compare-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
}
.compare-row + .compare-row{
  margin-top:72px;
  padding-top:72px;
  border-top:1px solid var(--line);
}
.compare-row.is-reverse .compare-media{order:2;}
.compare-row.is-reverse .compare-body{order:1;}
.compare-media{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  aspect-ratio:16/10;
  box-shadow:var(--shadow-sm);
}
.compare-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  border-radius:var(--r-img);
  transition:transform .3s ease-out;
}
.compare-row:hover .compare-media img{transform:scale(1.02);}
.compare-stamp{
  position:absolute;
  left:16px;
  top:16px;
  display:inline-flex;
  align-items:center;
  height:28px;
  padding:0 12px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:1px;
  color:#fff;
  background:rgba(11,31,28,0.72);
  border-radius:4px;
}
.compare-body .tag{
  display:inline-flex;
  align-items:center;
  padding:4px 12px;
  font-size:12px;
  letter-spacing:.4px;
  font-weight:600;
  color:var(--deep);
  background:rgba(127,200,169,0.28);
  border-radius:999px;
}
.compare-body h3{
  margin-top:14px;
  font-size:22px;
  line-height:1.4;
  font-weight:600;
  color:var(--deep);
}
.compare-body p{
  margin-top:12px;
  font-size:15px;
  color:var(--text-2);
}
.dot-list{
  margin-top:18px;
  display:flex;
  flex-direction:column;
  gap:10px;
}
.dot-list li{
  position:relative;
  padding-left:20px;
  font-size:14px;
  color:var(--text-2);
}
.dot-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:10px;
  width:8px;
  height:8px;
  border-radius:2px;
  background:var(--clay);
  opacity:.85;
}

/* ============ 条件对照 ============ */
.cond-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
}
.cond-item{
  background:var(--card);
  padding:28px;
  transition:background-color .18s ease-out;
}
.cond-item:hover{background:#FBF9F5;}
.cond-k{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-family:var(--font-mono);
  font-size:12px;
  letter-spacing:1px;
  color:var(--clay);
}
.cond-item h3{
  margin-top:12px;
  font-size:18px;
  font-weight:600;
  color:var(--deep);
}
.cond-item p{
  margin-top:10px;
  font-size:14px;
  color:var(--text-2);
}

/* ============ FAQ ============ */
.faq-acc .accordion-item{
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  margin-bottom:12px;
}
.faq-acc .accordion-item:last-child{margin-bottom:0;}
.faq-acc .accordion-button{
  display:flex;
  align-items:center;
  gap:14px;
  width:100%;
  padding:20px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--deep);
  background:var(--card);
  box-shadow:none;
  border-radius:var(--r-card);
}
.faq-acc .accordion-button:not(.collapsed){
  color:var(--deep);
  background:#FBF9F5;
  box-shadow:none;
}
.faq-acc .accordion-button:focus{
  box-shadow:none;
  border-color:var(--line);
}
.faq-acc .accordion-button::after{
  display:none;
}
.faq-acc .accordion-button .faq-plus{
  margin-left:auto;
  font-family:var(--font-mono);
  font-size:20px;
  line-height:1;
  color:var(--clay);
  transition:transform .18s ease-out;
}
.faq-acc .accordion-button:not(.collapsed) .faq-plus{transform:rotate(45deg);}
.faq-num{
  font-family:var(--font-mono);
  font-size:13px;
  color:var(--text-3);
}
.faq-acc .accordion-body{
  padding:0 24px 22px 24px;
  font-size:15px;
  line-height:1.9;
  color:var(--text-2);
  background:#FBF9F5;
}

/* ============ 深色 CTA ============ */
.cta-band{
  position:relative;
  background:var(--ink);
  color:#EDEAE2;
  overflow:hidden;
  border-radius:var(--r-card);
  padding:56px;
}
.cta-band::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(237,234,226,0.07) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(237,234,226,0.07) 1px,transparent 1px);
  background-size:56px 56px;
  opacity:.5;
  pointer-events:none;
}
.cta-inner{
  position:relative;
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:56px;
  align-items:center;
}
.cta-band h2{
  font-size:30px;
  line-height:1.4;
  font-weight:700;
  color:#FFFFFF;
}
.cta-band .cta-sub{
  margin-top:14px;
  font-size:15px;
  color:rgba(237,234,226,0.78);
  max-width:520px;
}
.cta-points{
  margin-top:26px;
  display:flex;
  flex-direction:column;
  gap:14px;
  border-left:1px solid rgba(237,234,226,0.22);
  padding-left:20px;
}
.cta-points li{
  font-size:14px;
  color:rgba(237,234,226,0.86);
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  justify-content:flex-end;
}

/* ============ 交叉内链 ============ */
.cross-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.cross-card{
  display:flex;
  flex-direction:column;
  background:var(--card);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--shadow-sm);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.cross-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);}
.cross-card .cross-img{
  aspect-ratio:16/9;
  overflow:hidden;
}
.cross-card .cross-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .3s ease-out;
}
.cross-card:hover .cross-img img{transform:scale(1.02);}
.cross-body{
  display:flex;
  flex-direction:column;
  flex:1;
  padding:24px;
}
.cross-body h3{
  font-size:18px;
  font-weight:600;
  color:var(--deep);
  margin-top:12px;
}
.cross-body p{
  margin-top:10px;
  font-size:14px;
  color:var(--text-2);
}
.cross-foot{
  margin-top:auto;
  padding-top:18px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:14px;
  color:var(--text-3);
}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--deep);
  color:rgba(240,244,242,0.80);
  padding:72px 0 28px;
  margin-top:0;
}
.site-footer .brand{color:#FFFFFF;}
.site-footer .brand-text{color:#FFFFFF;}
.site-footer .brand-mark{background:#FFFFFF;}
.site-footer .brand-mark::after{background:var(--clay);}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer-desc{
  margin-top:16px;
  font-size:14px;
  line-height:1.9;
  color:rgba(240,244,242,0.66);
  max-width:340px;
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#FFFFFF;
  margin-bottom:18px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.footer-links a{
  font-size:14px;
  color:rgba(240,244,242,0.72);
  transition:color .18s ease-out;
}
.footer-links a:hover{color:#FFFFFF;}
.footer-contact p{
  font-size:14px;
  line-height:1.9;
  color:rgba(240,244,242,0.68);
  margin-bottom:18px;
}
.footer-bottom{
  margin-top:56px;
  padding-top:22px;
  border-top:1px solid rgba(240,244,242,0.16);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  font-size:13px;
  color:rgba(240,244,242,0.56);
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-links{gap:22px;}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:36px;}
  .footer-contact{grid-column:span 3;}
}
@media (max-width:991.98px){
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .cat-hero{height:200px;}
  .cat-hero h1{font-size:32px;}
  .level-sum-grid{grid-template-columns:1fr 1fr;}
  .compare-row{grid-template-columns:1fr;gap:28px;}
  .compare-row.is-reverse .compare-media{order:0;}
  .compare-row.is-reverse .compare-body{order:0;}
  .compare-row + .compare-row{margin-top:56px;padding-top:56px;}
  .cond-grid{grid-template-columns:1fr;}
  .cta-inner{grid-template-columns:1fr;gap:32px;}
  .cta-band{padding:40px 32px;}
  .cta-actions{justify-content:flex-start;}
  .cross-grid{grid-template-columns:1fr 1fr;}
  .sec-title{font-size:26px;}
  .sec-head-row{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-contact{grid-column:span 2;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .level-sum-grid{grid-template-columns:1fr;}
  .cross-grid{grid-template-columns:1fr;}
  .cat-hero{height:180px;}
  .cat-hero h1{font-size:28px;}
  .cat-hero p{font-size:14px;}
  .sec-title{font-size:24px;}
  .sec-sub{font-size:14px;}
  .cta-band{padding:32px 22px;}
  .cta-band h2{font-size:24px;}
  .faq-acc .accordion-button{padding:16px 18px;font-size:15px;gap:10px;}
  .faq-acc .accordion-body{padding:0 18px 18px 18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-contact{grid-column:span 1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}
@media (max-width:575.98px){
  .cat-hero{height:160px;border-radius:0;}
  .cat-hero-inner{padding-bottom:20px;}
  .cat-hero h1{font-size:24px;}
  .section{padding:56px 0;}
  .section-tight{padding:48px 0;}
  .sec-title{font-size:22px;padding-left:18px;}
  .sec-sub{padding-left:18px;}
  .level-sum{padding:20px;}
  .compare-body h3{font-size:19px;}
  .cta-actions{flex-direction:column;align-items:stretch;}
  .cta-actions .btn-clay,.cta-actions .btn-ghost-light{width:100%;}
  .cross-body{padding:20px;}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    transition-duration:.001ms !important;
    animation-duration:.001ms !important;
  }
  .level-sum:hover,.cross-card:hover,.btn-main:hover,.btn-ghost:hover,.btn-clay:hover,.btn-ghost-light:hover{transform:none;}
  .compare-row:hover .compare-media img,.cross-card:hover .cross-img img{transform:none;}
}

/* roulang page: category3 */
/* ============ 设计变量层 ============ */
:root{
  --deep:#10403B;
  --deep-hover:#0C322E;
  --deep-light:#1E5C52;
  --mint:#7FC8A9;
  --clay:#D97A34;
  --clay-light:#F0DCC8;
  --paper:#F7F5F0;
  --ink:#0B1F1C;
  --card:#FFFFFF;
  --text:#1B2320;
  --muted:#5C6663;
  --faint:#8A938F;
  --line:rgba(16,64,59,0.12);
  --r-card:14px;
  --r-btn:10px;
  --r-input:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(11,31,28,0.06);
  --sh-2:0 12px 28px rgba(11,31,28,0.10);
  --mono:"SFMono-Regular",Menlo,Consolas,"Liberation Mono","Courier New",monospace;
  --sans:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;

  --bs-primary:#10403B;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1B2320;
  --bs-border-color:rgba(16,64,59,0.12);
  --bs-border-radius:10px;
  --bs-font-sans-serif:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
}

/* ============ 基础 reset ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--sans);
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--paper);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--deep);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--clay);}
h1,h2,h3,h4{margin:0;font-weight:700;color:var(--deep);letter-spacing:.01em;}
p{margin:0 0 1em;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--clay);outline-offset:2px;}

/* ============ 容器 ============ */
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(247,245,240,.96);
  border-bottom:1px solid var(--line);
  transition:background .18s ease-out,box-shadow .18s ease-out;
}
.site-header.is-scrolled{
  background:#FFFFFF;
  box-shadow:0 6px 22px rgba(11,31,28,.08);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  height:64px;
}
.nav-left{
  display:flex;
  align-items:center;
  gap:36px;
  min-width:0;
}
.brand{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-mark{
  width:24px;
  height:24px;
  border-radius:4px;
  background:var(--deep);
  position:relative;
  display:inline-block;
  flex-shrink:0;
}
.brand-mark::after{
  content:"";
  position:absolute;
  inset:6px;
  background:var(--clay);
  border-radius:2px;
}
.brand-text{
  font-size:18px;
  font-weight:700;
  color:var(--deep);
  letter-spacing:.02em;
  white-space:nowrap;
}
.brand:hover .brand-text{color:var(--deep);}
.nav-links{
  display:flex;
  align-items:center;
  gap:28px;
  margin:0;
  padding:0;
}
.nav-links > li{list-style:none;}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:4px 0;
  font-size:15px;
  font-weight:500;
  color:var(--text);
  white-space:nowrap;
}
.nav-links a::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-2px;
  height:2px;
  background:var(--clay);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .18s ease-out;
}
.nav-links a:hover{color:var(--deep);}
.nav-links a:hover::after,
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--deep);}
.nav-right{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.search-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  height:38px;
  padding:0 16px;
  border-radius:var(--r-btn);
  border:1px solid transparent;
  background:transparent;
  color:var(--muted);
  font-size:14px;
  cursor:pointer;
  transition:background .18s ease-out,color .18s ease-out;
}
.search-btn:hover{background:rgba(30,92,82,.08);color:var(--deep);}
.menu-btn{
  width:40px;
  height:40px;
  border-radius:var(--r-btn);
  border:1px solid var(--line);
  background:#fff;
  color:var(--deep);
  font-size:16px;
  cursor:pointer;
  transition:background .18s ease-out;
}
.menu-btn:hover{background:rgba(30,92,82,.08);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.4;
  padding:12px 24px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease-out,background .18s ease-out,color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out;
}
.btn-main{
  background:var(--deep);
  border-color:var(--deep);
  color:#FFFFFF;
}
.btn-main:hover,
.btn-main:focus{
  background:var(--deep-hover);
  border-color:var(--deep-hover);
  color:#FFFFFF;
  transform:translateY(-2px);
  box-shadow:var(--sh-2);
}
.btn-ghost{
  background:transparent;
  border-color:var(--deep);
  color:var(--deep);
}
.btn-ghost:hover{
  background:var(--deep);
  border-color:var(--deep);
  color:#FFFFFF;
  transform:translateY(-2px);
}
.btn-sm{
  padding:9px 18px;
  font-size:14px;
}
.btn-block{
  width:100%;
}
.btn-link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--deep);
  background:none;
  border:0;
  padding:0;
  cursor:pointer;
}
.btn-link-arrow i{transition:transform .18s ease-out;}
.btn-link-arrow:hover{color:var(--clay);}
.btn-link-arrow:hover i{transform:translateX(4px);}

/* ============ 分类头图 ============ */
.cat-hero{
  position:relative;
  height:220px;
  overflow:hidden;
  background:var(--deep);
}
.cat-hero-bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
}
.cat-hero-mask{
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(16,64,59,.90) 0%,rgba(16,64,59,.58) 62%,rgba(11,31,28,.42) 100%);
}
.cat-hero-inner{
  position:relative;
  z-index:2;
  height:100%;
  display:flex;
  flex-direction:column;
  justify-content:flex-end;
  padding-bottom:26px;
}
.cat-crumb{
  font-size:13px;
  color:rgba(255,255,255,.78);
  margin:0 0 10px;
}
.cat-crumb a{color:rgba(255,255,255,.78);}
.cat-crumb a:hover{color:#FFFFFF;}
.cat-crumb span{color:#FFFFFF;}
.cat-hero h1{
  color:#FFFFFF;
  font-size:34px;
  line-height:1.3;
  margin:0 0 8px;
  letter-spacing:.01em;
}
.cat-hero-desc{
  color:rgba(255,255,255,.86);
  font-size:15px;
  margin:0;
}

/* ============ 板块通用 ============ */
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
.section-head{margin-bottom:36px;}
.sec-no{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-family:var(--mono);
  font-size:13px;
  letter-spacing:.16em;
  color:var(--clay);
}
.sec-no::after{
  content:"";
  width:28px;
  height:1px;
  background:var(--clay);
  opacity:.6;
}
.sec-title{
  font-size:30px;
  line-height:1.35;
  margin:12px 0 10px;
  color:var(--deep);
}
.sec-sub{
  color:var(--muted);
  font-size:15px;
  margin:0;
}
.sec-head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}

/* ============ 概览条 ============ */
.overview{
  display:grid;
  grid-template-columns:1.35fr 1fr;
  gap:48px;
  align-items:start;
}
.overview-lead{
  font-size:16px;
  color:var(--text);
}
.overview-lead strong{color:var(--deep);}
.stat-row{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:1px;
  background:var(--line);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  margin-top:8px;
}
.stat{
  background:#FFFFFF;
  padding:22px 18px;
  text-align:left;
}
.stat-num{
  font-family:var(--mono);
  font-size:26px;
  font-weight:700;
  color:var(--deep);
  line-height:1.2;
}
.stat-label{
  font-size:13px;
  color:var(--faint);
  margin-top:4px;
}

/* ============ 清单列表 ============ */
.checklist{
  border-top:1px solid var(--line);
}
.checklist-item{
  display:grid;
  grid-template-columns:76px minmax(0,1fr) 190px;
  gap:28px;
  padding:26px 16px;
  border-bottom:1px solid var(--line);
  background:transparent;
  transition:background .18s ease-out,box-shadow .18s ease-out;
}
.checklist-item:hover{
  background:#FFFFFF;
  box-shadow:var(--sh-1);
}
.ck-no{
  font-family:var(--mono);
  font-size:24px;
  font-weight:700;
  color:var(--clay);
  line-height:1.3;
  padding-top:2px;
}
.ck-body h3{
  font-size:19px;
  font-weight:600;
  margin:0 0 8px;
  color:var(--deep);
}
.ck-body p{
  font-size:15px;
  line-height:1.8;
  color:var(--muted);
  margin:0 0 12px;
}
.tag-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.tag{
  display:inline-block;
  padding:4px 10px;
  border-radius:999px;
  font-size:12px;
  letter-spacing:.03em;
  background:rgba(127,200,169,.28);
  color:var(--deep);
  white-space:nowrap;
}
.tag-clay{
  background:var(--clay-light);
  color:#8A4A17;
}
.ck-side{
  border-left:1px solid var(--line);
  padding-left:20px;
  font-size:13px;
  color:var(--faint);
}
.ck-side-label{
  display:block;
  font-family:var(--mono);
  font-size:12px;
  letter-spacing:.1em;
  color:var(--faint);
  margin-bottom:4px;
}
.ck-side-text{
  display:block;
  font-size:14px;
  color:var(--muted);
  line-height:1.7;
}

/* ============ 步骤区 ============ */
.steps-wrap{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
  border-top:1px solid var(--line);
}
.step{
  position:relative;
  padding:30px 24px 30px 0;
  border-right:1px solid var(--line);
}
.step:last-child{border-right:0;padding-right:0;}
.step-no{
  font-family:var(--mono);
  font-size:38px;
  font-weight:700;
  line-height:1;
  color:rgba(16,64,59,.16);
  display:block;
  margin-bottom:14px;
}
.step h3{
  font-size:17px;
  font-weight:600;
  margin:0 0 8px;
}
.step p{
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
  margin:0;
}

/* ============ 节奏 / 图文 ============ */
.rhythm{
  display:grid;
  grid-template-columns:5fr 6fr;
  gap:56px;
  align-items:center;
}
.rhythm-media{
  position:relative;
  border-radius:var(--r-img);
  overflow:hidden;
  aspect-ratio:16/10;
  box-shadow:var(--sh-1);
}
.rhythm-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .18s ease-out;
}
.rhythm-media:hover img{transform:scale(1.02);}
.rhythm-media .seal{
  position:absolute;
  left:18px;
  bottom:18px;
  width:16px;
  height:16px;
  border-radius:4px;
  background:var(--clay);
}
.rhythm-list{
  margin-top:20px;
}
.rhythm-list li{
  display:flex;
  gap:14px;
  padding:14px 0;
  border-bottom:1px solid var(--line);
  font-size:15px;
  color:var(--text);
}
.rhythm-list li:first-child{border-top:1px solid var(--line);}
.rhythm-list .dot{
  flex-shrink:0;
  width:20px;
  height:20px;
  margin-top:5px;
  border-radius:4px;
  background:rgba(127,200,169,.4);
  color:var(--deep);
  font-size:11px;
  font-family:var(--mono);
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.rhythm-list .rtxt strong{display:block;color:var(--deep);font-weight:600;font-size:15px;}
.rhythm-list .rtxt span{color:var(--muted);font-size:14px;}

/* ============ FAQ ============ */
.faq-sec{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.accordion-item{
  background:#FFFFFF;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  margin-bottom:12px;
  overflow:hidden;
}
.accordion-item:last-child{margin-bottom:0;}
.accordion-button{
  display:flex;
  align-items:center;
  gap:14px;
  width:100%;
  padding:20px 24px;
  background:#FFFFFF;
  border:0;
  font-size:16px;
  font-weight:600;
  color:var(--deep);
  text-align:left;
  box-shadow:none;
  transition:background .18s ease-out;
}
.accordion-button:not(.collapsed){
  background:rgba(127,200,169,.12);
  color:var(--deep);
  box-shadow:none;
}
.accordion-button:focus{
  box-shadow:none;
  border-color:transparent;
  outline:2px solid var(--clay);
  outline-offset:-2px;
}
.accordion-button::after{display:none;}
.faq-no{
  font-family:var(--mono);
  font-size:13px;
  color:var(--clay);
  flex-shrink:0;
}
.faq-icon{
  margin-left:auto;
  flex-shrink:0;
  width:22px;
  height:22px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--deep-light);
  font-size:14px;
  transition:transform .2s ease-out;
}
.accordion-button:not(.collapsed) .faq-icon{transform:rotate(45deg);}
.accordion-body{
  padding:0 24px 22px 24px;
  font-size:15px;
  line-height:1.9;
  color:var(--muted);
  border-top:1px solid transparent;
}

/* ============ 交叉链接 ============ */
.cross-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.cross-card{
  display:flex;
  flex-direction:column;
  background:#FFFFFF;
  border:1px solid var(--line);
  border-radius:var(--r-card);
  overflow:hidden;
  box-shadow:var(--sh-1);
  transition:transform .18s ease-out,box-shadow .18s ease-out;
  height:100%;
}
.cross-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--sh-2);
}
.cross-thumb{
  aspect-ratio:16/9;
  overflow:hidden;
}
.cross-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .18s ease-out;
}
.cross-card:hover .cross-thumb img{transform:scale(1.02);}
.cross-body{
  padding:22px 22px 24px;
  display:flex;
  flex-direction:column;
  flex:1 1 auto;
}
.cross-body h3{
  font-size:18px;
  font-weight:600;
  margin:10px 0 8px;
}
.cross-body p{
  font-size:14px;
  line-height:1.8;
  color:var(--muted);
  margin:0 0 16px;
  flex:1 1 auto;
}

/* ============ CTA 深色区块 ============ */
.cta-section{
  background:var(--ink);
  position:relative;
  overflow:hidden;
}
.cta-section::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(255,255,255,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.05) 1px,transparent 1px);
  background-size:48px 48px;
  opacity:.9;
  pointer-events:none;
}
.cta-wrap{
  position:relative;
  z-index:2;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:start;
}
.cta-text .sec-no{color:var(--mint);}
.cta-text .sec-no::after{background:var(--mint);}
.cta-text h2{
  color:#FFFFFF;
  font-size:30px;
  line-height:1.35;
  margin:12px 0 14px;
}
.cta-text p{
  color:rgba(255,255,255,.78);
  font-size:15px;
  max-width:34em;
}
.cta-points{
  margin-top:20px;
}
.cta-points li{
  display:flex;
  align-items:center;
  gap:12px;
  padding:10px 0;
  color:rgba(255,255,255,.88);
  font-size:15px;
}
.cta-points i{color:var(--mint);font-size:13px;}
.cta-form{
  background:#FFFFFF;
  border-radius:var(--r-card);
  padding:28px;
  box-shadow:0 18px 40px rgba(0,0,0,.18);
}
.form-row{margin-bottom:16px;}
.form-row label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--deep);
  margin-bottom:8px;
}
.form-control,
.form-select{
  width:100%;
  height:44px;
  padding:10px 14px;
  border:1px solid var(--line);
  border-radius:var(--r-input);
  background:#FFFFFF;
  color:var(--text);
  font-size:15px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.form-control::placeholder{color:var(--faint);}
.form-control:focus,
.form-select:focus{
  border-color:var(--deep);
  box-shadow:0 0 0 3px rgba(16,64,59,.12);
  outline:none;
}
.code-row{
  display:grid;
  grid-template-columns:1fr auto;
  gap:10px;
}
.btn-code{
  height:44px;
  padding:0 18px;
  font-size:14px;
  white-space:nowrap;
}
.check-line{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:13px;
  color:var(--muted);
  margin:6px 0 18px;
  line-height:1.7;
}
.check-line input{
  width:16px;
  height:16px;
  margin-top:4px;
  accent-color:var(--deep);
  flex-shrink:0;
}
.form-note{
  font-size:13px;
  color:var(--faint);
  margin:14px 0 0;
  line-height:1.8;
}
.form-note a{color:var(--deep);text-decoration:underline;}

/* ============ 页脚 ============ */
.site-footer{
  background:var(--deep);
  color:rgba(255,255,255,.76);
  padding:72px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:48px;
}
.site-footer .brand-text{color:#FFFFFF;}
.site-footer .brand-mark{background:#FFFFFF;}
.site-footer .brand-mark::after{background:var(--clay);}
.footer-desc{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.66);
  margin:18px 0 0;
  max-width:30em;
}
.footer-title{
  font-size:15px;
  font-weight:600;
  color:#FFFFFF;
  margin:0 0 16px;
}
.footer-links{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-links a{
  font-size:14px;
  color:rgba(255,255,255,.72);
}
.footer-links a:hover{color:#FFFFFF;}
.footer-contact p{
  font-size:14px;
  line-height:1.9;
  color:rgba(255,255,255,.66);
  margin:0 0 18px;
}
.site-footer .btn-ghost{
  border-color:rgba(255,255,255,.5);
  color:#FFFFFF;
}
.site-footer .btn-ghost:hover{
  background:#FFFFFF;
  border-color:#FFFFFF;
  color:var(--deep);
}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid rgba(255,255,255,.14);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13px;
  color:rgba(255,255,255,.58);
}

/* ============ 移动端抽屉 ============ */
.mobile-menu{
  background:var(--paper);
  width:min(320px,86vw);
}
.mobile-menu .offcanvas-header{
  padding:18px 20px;
  border-bottom:1px solid var(--line);
}
.mobile-menu .offcanvas-body{
  padding:0 20px 24px;
}
.mobile-links{
  margin:0;
  padding:0;
}
.mobile-links li{border-bottom:1px solid var(--line);}
.mobile-links a{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:52px;
  font-size:15px;
  font-weight:500;
  color:var(--text);
}
.mobile-links a.is-active{color:var(--clay);}
.mobile-actions{
  display:flex;
  flex-direction:column;
  gap:12px;
  margin-top:22px;
}
.mobile-actions .search-btn{
  width:100%;
  height:44px;
  justify-content:center;
  border:1px solid var(--line);
  background:#FFFFFF;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .nav-links{gap:22px;}
  .nav-left{gap:26px;}
}
@media (max-width:991.98px){
  .container{padding-left:20px;padding-right:20px;}
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
  .cat-hero{height:190px;}
  .cat-hero h1{font-size:28px;}
  .overview{grid-template-columns:1fr;gap:32px;}
  .checklist-item{grid-template-columns:60px minmax(0,1fr);gap:20px;padding:22px 12px;}
  .ck-side{
    grid-column:2;
    border-left:0;
    border-top:1px solid var(--line);
    padding-left:0;
    padding-top:12px;
  }
  .steps-wrap{grid-template-columns:repeat(2,1fr);}
  .step{border-right:0;border-bottom:1px solid var(--line);padding:26px 20px 26px 0;}
  .step:nth-child(2n){padding-right:0;border-right:0;}
  .step:nth-last-child(-n+2){border-bottom:0;}
  .rhythm{grid-template-columns:1fr;gap:32px;}
  .cta-wrap{grid-template-columns:1fr;gap:36px;}
  .cross-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:575.98px){
  .container{padding-left:16px;padding-right:16px;}
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .nav-wrap{height:56px;}
  .cat-hero{height:160px;}
  .cat-hero h1{font-size:23px;}
  .cat-hero-desc{font-size:14px;}
  .sec-title{font-size:24px;}
  .cta-text h2{font-size:24px;}
  .stat-row{grid-template-columns:1fr;}
  .checklist-item{grid-template-columns:1fr;gap:12px;}
  .ck-no{font-size:20px;}
  .ck-side{grid-column:1;}
  .steps-wrap{grid-template-columns:1fr;}
  .step{padding-right:0;border-bottom:1px solid var(--line);}
  .step:last-child{border-bottom:0;}
  .cross-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .cta-form{padding:20px;}
  .accordion-button{padding:16px 18px;font-size:15px;}
  .accordion-body{padding:0 18px 18px 18px;}
  .footer-bottom{flex-direction:column;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{
    animation-duration:.001ms !important;
    transition-duration:.001ms !important;
    scroll-behavior:auto !important;
  }
  .btn:hover,.cross-card:hover{transform:none;}
  .rhythm-media:hover img,.cross-card:hover .cross-thumb img{transform:none;}
}

/* roulang page: category4 */
:root{
  --deep:#10403B;
  --deep-hover:#0C322E;
  --deep-light:#1E5C52;
  --mint:#7FC8A9;
  --clay:#D97A34;
  --clay-soft:#F0DCC8;
  --paper:#F7F5F0;
  --ink:#0B1F1C;
  --card:#FFFFFF;
  --text:#1B2320;
  --text-2:#5C6663;
  --text-3:#8A938F;
  --line:rgba(16,64,59,0.12);
  --r-card:14px;
  --r-btn:10px;
  --r-img:12px;
  --sh-1:0 1px 2px rgba(11,31,28,0.06);
  --sh-2:0 12px 28px rgba(11,31,28,0.10);
  --font-sans:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-mono:"SFMono-Regular",Consolas,"Liberation Mono",Menlo,monospace;
  --bs-primary:#10403B;
  --bs-body-bg:#F7F5F0;
  --bs-body-color:#1B2320;
  --bs-border-color:rgba(16,64,59,0.12);
  --bs-border-radius:14px;
  --bs-font-sans-serif:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}

*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--deep);text-decoration:none;transition:color .18s ease-out;}
a:hover{color:var(--deep-light);}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--clay);outline-offset:2px;}

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

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(247,245,240,.96);
  border-bottom:1px solid var(--line);
  transition:background .18s ease-out,box-shadow .18s ease-out;
}
.site-header.is-scrolled{background:#F2EFE8;box-shadow:0 6px 18px rgba(11,31,28,.06);}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;height:64px;gap:24px;}
.nav-left{display:flex;align-items:center;gap:36px;min-width:0;}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  width:24px;height:24px;flex:0 0 24px;border-radius:4px;
  background:var(--deep);
  box-shadow:inset 0 0 0 5px var(--mint);
}
.brand-text{font-size:18px;font-weight:700;color:var(--deep);letter-spacing:.4px;white-space:nowrap;}
.nav-links{display:flex;align-items:center;gap:28px;}
.nav-links a{
  position:relative;display:inline-block;padding:6px 0;
  font-size:15px;font-weight:500;color:var(--text-2);
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--clay);transform:scaleX(0);transform-origin:left;transition:transform .18s ease-out;
}
.nav-links a:hover{color:var(--deep);}
.nav-links a:hover::after,
.nav-links a.is-active::after{transform:scaleX(1);}
.nav-links a.is-active{color:var(--deep);font-weight:600;}
.nav-right{display:flex;align-items:center;gap:12px;}
.search-btn{
  align-items:center;gap:8px;height:40px;padding:0 16px;
  border:1px solid var(--line);border-radius:var(--r-btn);
  background:transparent;color:var(--text-2);font-size:14px;font-weight:500;
  transition:background .18s ease-out,color .18s ease-out;
}
.search-btn:hover{background:rgba(30,92,82,.08);color:var(--deep);}
.menu-btn{
  width:40px;height:40px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:transparent;color:var(--deep);font-size:16px;
}
.menu-btn:hover{background:rgba(30,92,82,.08);}

/* ---------- buttons ---------- */
.btn{font-family:inherit;border-radius:var(--r-btn);font-size:15px;font-weight:600;line-height:1.2;border:1px solid transparent;transition:all .18s ease-out;}
.btn-main{background:var(--deep);color:#fff;padding:12px 24px;}
.btn-main:hover{background:var(--deep-hover);color:#fff;transform:translateY(-2px);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-line{background:transparent;border:1px solid var(--deep);color:var(--deep);padding:12px 24px;}
.btn-line:hover{background:var(--deep);color:#fff;transform:translateY(-2px);}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,.4);color:#fff;padding:10px 18px;font-size:14px;}
.btn-ghost:hover{background:#fff;color:var(--deep);border-color:#fff;}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--deep);font-size:14px;font-weight:600;background:none;border:0;padding:0;}
.btn-text i{transition:transform .18s ease-out;}
.btn-text:hover i{transform:translateX(4px);}

/* ---------- offcanvas ---------- */
.offcanvas{background:var(--paper);max-width:320px;}
.offcanvas-header{border-bottom:1px solid var(--line);padding:18px 20px;}
.drawer-links{margin:8px 0 20px;}
.drawer-links a{
  display:flex;align-items:center;justify-content:space-between;
  height:52px;border-bottom:1px solid var(--line);
  font-size:15px;font-weight:500;color:var(--text-2);
}
.drawer-links a.is-active{color:var(--deep);font-weight:600;}
.drawer-actions{display:grid;gap:12px;}
.btn-close{filter:grayscale(1);}

/* ---------- category hero ---------- */
.cat-hero{position:relative;height:220px;overflow:hidden;background:var(--ink);}
.cat-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.cat-hero-mask{position:absolute;inset:0;background:linear-gradient(90deg,rgba(11,31,28,.78) 0%,rgba(16,64,59,.42) 60%,rgba(16,64,59,.28) 100%);}
.cat-hero-inner{position:relative;height:100%;display:flex;flex-direction:column;justify-content:flex-end;padding-bottom:26px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:1.4px;
  color:var(--clay-soft);text-transform:uppercase;margin-bottom:10px;
}
.eyebrow::before{content:"";width:16px;height:16px;border-radius:4px;background:var(--clay);display:inline-block;}
.cat-hero h1{font-size:34px;font-weight:700;line-height:1.25;color:#fff;letter-spacing:.5px;}
.cat-hero-desc{margin-top:8px;font-size:15px;color:rgba(255,255,255,.82);max-width:640px;}

/* ---------- breadcrumb ---------- */
.crumb{padding:18px 0 0;font-size:14px;color:var(--text-3);}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--deep);}
.crumb .sep{margin:0 8px;color:var(--text-3);}
.crumb .now{color:var(--deep);font-weight:600;}

/* ---------- sections ---------- */
.section{padding:64px 0;}
.section-head{max-width:760px;margin-bottom:34px;}
.sec-num{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:1.6px;color:var(--clay);
}
.sec-num::after{content:"";width:36px;height:1px;background:var(--clay);opacity:.6;}
.section-head h2{margin-top:12px;font-size:28px;font-weight:700;line-height:1.35;color:var(--deep);}
.section-head p{margin-top:10px;font-size:15px;color:var(--text-2);}

/* ---------- stat strip ---------- */
.stat-strip{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  border:1px solid var(--line);border-radius:var(--r-card);background:var(--card);
  box-shadow:var(--sh-1);overflow:hidden;
}
.stat-item{padding:22px 24px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-num{font-family:var(--font-mono);font-size:22px;font-weight:700;color:var(--deep);}
.stat-label{margin-top:6px;font-size:14px;color:var(--text-2);}

/* ---------- main grid ---------- */
.cat-layout{display:grid;grid-template-columns:minmax(0,1fr) 340px;gap:36px;align-items:start;}

.masonry{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;}
.cell-wide{grid-column:span 2;}
.mcard{
  display:flex;flex-direction:column;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);overflow:hidden;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.mcard:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.mcard-media{position:relative;aspect-ratio:16/9;overflow:hidden;border-radius:0;}
.mcard-media img{width:100%;height:100%;object-fit:cover;transition:transform .3s ease-out;}
.mcard:hover .mcard-media img{transform:scale(1.02);}
.mcard-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.tag{
  display:inline-block;align-self:flex-start;
  padding:5px 10px;border-radius:999px;
  background:rgba(127,200,169,.24);color:var(--deep);
  font-size:12px;letter-spacing:.6px;
}
.mcard h3{font-size:19px;font-weight:600;line-height:1.45;color:var(--text);}
.mcard p{font-size:14px;color:var(--text-2);line-height:1.8;}
.mcard-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:12px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.cell-wide .mcard{flex-direction:row;}
.cell-wide .mcard-media{flex:0 0 46%;aspect-ratio:auto;min-height:100%;}
.cell-wide .mcard-media img{height:100%;}
.cell-wide .mcard-body{padding:28px;gap:12px;}
.cell-wide h3{font-size:22px;}

/* ---------- aside ---------- */
.aside-panel{position:sticky;top:88px;display:grid;gap:20px;}
.aside-card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:24px;
}
.aside-card.accent{border-left:3px solid var(--clay);}
.aside-title{
  display:flex;align-items:center;gap:8px;
  font-size:16px;font-weight:600;color:var(--deep);margin-bottom:14px;
}
.aside-title::before{content:"";width:14px;height:14px;border-radius:4px;background:var(--mint);}
.check-list{display:grid;gap:14px;}
.check-list li{display:flex;gap:10px;font-size:14px;color:var(--text-2);line-height:1.75;}
.check-list i{color:var(--clay);font-size:13px;margin-top:6px;}
.aside-links{display:grid;gap:2px;}
.aside-links a{
  display:flex;align-items:center;justify-content:space-between;
  padding:11px 0;border-bottom:1px solid var(--line);
  font-size:14px;font-weight:500;color:var(--text-2);
}
.aside-links a:last-child{border-bottom:0;}
.aside-links a:hover{color:var(--deep);}
.aside-note{font-size:13px;color:var(--text-3);line-height:1.8;}

/* ---------- steps ---------- */
.steps{display:grid;gap:0;border-top:1px solid var(--line);}
.step{
  display:grid;grid-template-columns:80px minmax(0,1fr) 300px;
  gap:24px;align-items:start;
  padding:28px 0;border-bottom:1px solid var(--line);
}
.step-num{font-family:var(--font-mono);font-size:26px;font-weight:700;color:var(--clay);line-height:1;}
.step h3{font-size:19px;font-weight:600;color:var(--deep);}
.step p{margin-top:8px;font-size:14px;color:var(--text-2);max-width:620px;}
.step-side{
  border-left:1px solid var(--line);padding-left:20px;
  font-size:14px;color:var(--text-2);
}
.step-side span{display:inline-block;font-family:var(--font-mono);font-size:12px;color:var(--text-3);letter-spacing:1px;margin-bottom:6px;}

/* ---------- faq ---------- */
.faq-acc .accordion-item{
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--sh-1);
}
.faq-acc .accordion-button{
  display:flex;align-items:center;gap:12px;
  width:100%;padding:18px 22px;background:var(--card);
  font-size:16px;font-weight:600;color:var(--text);box-shadow:none;
}
.faq-acc .accordion-button:not(.collapsed){background:var(--card);color:var(--deep);}
.faq-acc .accordion-button:focus{box-shadow:none;border-color:transparent;outline:2px solid var(--clay);outline-offset:-2px;}
.faq-num{font-family:var(--font-mono);font-size:13px;color:var(--clay);letter-spacing:1px;flex:0 0 auto;}
.faq-acc .accordion-button::after{
  content:"\f067";font-family:"Font Awesome 6 Free";font-weight:900;
  background-image:none;width:auto;height:auto;
  font-size:13px;color:var(--clay);margin-left:auto;
  transition:transform .18s ease-out;
}
.faq-acc .accordion-button:not(.collapsed)::after{transform:rotate(45deg);}
.faq-acc .accordion-body{padding:0 22px 20px 58px;font-size:15px;line-height:1.9;color:var(--text-2);}

/* ---------- cross links ---------- */
.cross-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.cross-card{
  display:flex;flex-direction:column;gap:12px;
  background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--sh-1);padding:24px;
  transition:transform .18s ease-out,box-shadow .18s ease-out;
}
.cross-card:hover{transform:translateY(-4px);box-shadow:var(--sh-2);}
.cross-card i.ico{font-size:16px;color:var(--clay);}
.cross-card h3{font-size:18px;font-weight:600;color:var(--deep);}
.cross-card p{font-size:14px;color:var(--text-2);}
.cross-card .btn-text{margin-top:auto;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;background:var(--ink);color:#fff;overflow:hidden;
  padding:72px 0;
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(255,255,255,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.06) 1px,transparent 1px);
  background-size:48px 48px;pointer-events:none;
}
.cta-grid{position:relative;display:grid;grid-template-columns:minmax(0,1fr) 420px;gap:48px;align-items:center;}
.cta-band h2{font-size:28px;font-weight:700;line-height:1.35;color:#fff;}
.cta-band .lead{margin-top:12px;font-size:15px;color:rgba(255,255,255,.78);max-width:520px;}
.cta-points{display:flex;flex-wrap:wrap;gap:12px;margin-top:22px;}
.cta-points span{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 14px;border-radius:999px;
  background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.14);
  font-size:13px;color:rgba(255,255,255,.86);
}
.cta-points i{color:var(--mint);font-size:12px;}
.form-card{background:#fff;border-radius:var(--r-card);padding:28px;box-shadow:var(--sh-2);}
.form-card h3{font-size:17px;font-weight:600;color:var(--deep);margin-bottom:18px;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:6px;}
.form-control,.form-select{
  height:44px;border-radius:var(--r-btn);
  border:1px solid var(--line);background:#fff;
  font-size:14px;color:var(--text);box-shadow:none;
}
.form-control:focus,.form-select:focus{
  border-color:var(--deep);box-shadow:0 0 0 1px var(--deep);outline:none;
}
.form-check-input{border-color:rgba(16,64,59,.3);}
.form-check-input:checked{background-color:var(--deep);border-color:var(--deep);}
.form-check-input:focus{box-shadow:0 0 0 2px rgba(217,122,52,.4);border-color:var(--clay);}
.form-check-label{font-size:13px;color:var(--text-2);}
.form-note{margin-top:12px;font-size:12px;color:var(--text-3);line-height:1.7;}
.form-note a{color:var(--deep);text-decoration:underline;}

/* ---------- footer ---------- */
.site-footer{background:var(--deep);color:rgba(255,255,255,.78);padding:64px 0 26px;margin-top:0;}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;}
.site-footer .brand-text{color:#fff;}
.site-footer .brand-mark{background:#fff;box-shadow:inset 0 0 0 5px var(--deep);}
.footer-desc{margin-top:16px;font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:320px;}
.footer-title{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-links{display:grid;gap:10px;}
.footer-links a{font-size:14px;color:rgba(255,255,255,.72);}
.footer-links a:hover{color:#fff;}
.footer-contact p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);margin-bottom:16px;}
.footer-bottom{
  margin-top:48px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:rgba(255,255,255,.6);
}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .nav-links{gap:20px;}
  .cat-layout{grid-template-columns:minmax(0,1fr) 300px;gap:28px;}
}
@media (max-width:991.98px){
  .section{padding:56px 0;}
  .cat-layout{grid-template-columns:minmax(0,1fr);}
  .aside-panel{position:static;}
  .cell-wide .mcard{flex-direction:column;}
  .cell-wide .mcard-media{flex:none;aspect-ratio:16/9;min-height:0;}
  .step{grid-template-columns:60px minmax(0,1fr);}
  .step-side{grid-column:2;border-left:0;padding-left:0;border-top:1px solid var(--line);padding-top:12px;}
  .cta-grid{grid-template-columns:minmax(0,1fr);gap:32px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line);}
  .cross-grid{grid-template-columns:1fr;}
}
@media (max-width:767.98px){
  .container{padding-left:16px;padding-right:16px;}
  .nav-wrap{height:56px;}
  .cat-hero{height:160px;}
  .cat-hero h1{font-size:24px;}
  .cat-hero-desc{font-size:13px;}
  .section-head h2{font-size:22px;}
  .section-head{margin-bottom:24px;}
  .masonry{grid-template-columns:1fr;gap:18px;}
  .cell-wide{grid-column:span 1;}
  .mcard-body{padding:18px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:6px;}
  .cta-band{padding:56px 0;}
  .cta-band h2{font-size:22px;}
}
@media (max-width:575.98px){
  .stat-item{padding:18px;}
  .stat-num{font-size:19px;}
  .step{grid-template-columns:48px minmax(0,1fr);gap:14px;}
  .step-num{font-size:20px;}
  .faq-acc .accordion-body{padding-left:22px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  .mcard:hover,.cross-card:hover,.btn:hover{transform:none;}
  .mcard:hover .mcard-media img{transform:none;}
}