/* roulang page: index */
:root{
  --ink:#1F2A44;
  --ink-soft:#2C3A5A;
  --clay:#D9663D;
  --clay-soft:#F7E6DE;
  --moss:#4E7C5B;
  --moss-soft:#E4EEE6;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E3DFD6;
  --text:#20242E;
  --muted:#6C7280;
  --ph:#EDEAE3;
  --r-card:10px;
  --r-btn:8px;
  --sh-1:0 1px 2px rgba(15,27,45,.05),0 2px 10px rgba(15,27,45,.04);
  --sh-2:0 12px 26px rgba(15,27,45,.10);
  --maxw:1200px;
  --sec:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--clay);}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3;letter-spacing:.005em;}
p{margin:0 0 1.1em;max-width:720px;}
ul,ol{margin:0;padding:0;list-style:none;}
button,input{font-family:inherit;font-size:inherit;}
button{cursor:pointer;}
:focus-visible{outline:2px solid var(--clay);outline-offset:2px;}
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:var(--sec) 0;}
.section-alt{background:#FFFDF9;border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:34px;}
.section-kicker{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;color:var(--clay);letter-spacing:.14em;text-transform:uppercase;margin-bottom:10px;}
.section-kicker::before{content:"";width:22px;height:2px;background:var(--clay);display:inline-block;}
.section-title{font-size:28px;margin-bottom:12px;}
.section-desc{color:var(--muted);font-size:16px;margin:0;max-width:720px;}
.badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;line-height:1;padding:6px 12px;border-radius:999px;font-weight:500;white-space:nowrap;}
.badge-moss{background:var(--moss-soft);color:#2F5B3C;}
.badge-clay{background:var(--clay-soft);color:#A5441F;}
.badge-ink{background:#E8EAF0;color:var(--ink);}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:46px;padding:0 22px;border-radius:var(--r-btn);font-size:15px;font-weight:600;border:1px solid transparent;transition:all .22s ease;}
.btn-primary{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn-primary:hover{background:var(--clay);border-color:var(--clay);color:#fff;}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn-light{background:#fff;color:var(--ink);border-color:#fff;}
.btn-light:hover{background:var(--clay);border-color:var(--clay);color:#fff;}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.65);}
.btn-outline-light:hover{background:var(--clay);border-color:var(--clay);color:#fff;}

/* header */
.site-header{position:sticky;top:0;z-index:60;background:rgba(246,244,239,.94);backdrop-filter:blur(8px);border-bottom:1px solid var(--line);}
.header-inner{display:flex;align-items:center;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;}
.brand-mark{width:34px;height:34px;border-radius:8px;background:var(--ink);color:#fff;display:flex;align-items:center;justify-content:center;font-size:15px;font-weight:700;letter-spacing:.02em;}
.brand-text{font-size:18px;font-weight:700;color:var(--ink);letter-spacing:.02em;}
.brand-text span{color:var(--clay);}
.nav-main{margin-left:auto;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-item{position:relative;}
.nav-link{display:inline-flex;align-items:center;height:72px;padding:0 14px;font-size:15px;font-weight:500;color:var(--ink-soft);position:relative;}
.nav-link::after{content:"";position:absolute;left:14px;right:14px;bottom:20px;height:2px;background:var(--clay);transform:scaleX(0);transform-origin:left;transition:transform .22s ease;}
.nav-link:hover{color:var(--clay);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-item.is-active .nav-link{color:var(--ink);font-weight:700;}
.nav-item.is-active .nav-link::after{transform:scaleX(1);background:var(--ink);}
.mega-panel{position:absolute;top:100%;right:-140px;width:720px;background:#fff;border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-2);padding:26px;opacity:0;visibility:hidden;transform:translateY(8px);transition:all .22s ease;z-index:80;}
.nav-item.has-mega:hover .mega-panel,.nav-item.has-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-inner{display:grid;grid-template-columns:1fr 1fr;gap:26px;}
.mega-title{font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--muted);text-transform:uppercase;margin-bottom:14px;}
.mega-list li{margin-bottom:10px;}
.mega-link{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--ink-soft);}
.mega-link::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--clay);opacity:.5;flex-shrink:0;}
.mega-link:hover{color:var(--clay);}
.mega-entry{margin-top:16px;border:1px solid var(--line);border-radius:var(--r-card);padding:16px;background:var(--paper);}
.mega-entry h4{font-size:15px;margin-bottom:6px;}
.mega-entry p{font-size:13px;color:var(--muted);margin:0 0 10px;line-height:1.7;}
.mega-entry a{font-size:13px;font-weight:600;color:var(--clay);}
.mega-post{display:block;padding:10px 0;border-bottom:1px dashed var(--line);}
.mega-post:last-child{border-bottom:0;}
.mega-post strong{display:block;font-size:14px;font-weight:600;color:var(--ink);line-height:1.5;}
.mega-post span{font-size:12px;color:var(--muted);}
.nav-toggle{display:none;width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);background:#fff;color:var(--ink);font-size:18px;margin-left:auto;}

/* drawer */
.drawer-mask{position:fixed;inset:0;background:rgba(15,27,45,.4);opacity:0;visibility:hidden;transition:.25s;z-index:90;}
.drawer{position:fixed;top:0;right:0;bottom:0;width:300px;max-width:86vw;background:#fff;z-index:100;transform:translateX(100%);transition:transform .28s ease;padding:22px;overflow-y:auto;box-shadow:var(--sh-2);}
body.drawer-open .drawer{transform:translateX(0);}
body.drawer-open .drawer-mask{opacity:1;visibility:visible;}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-close{width:40px;height:40px;border-radius:var(--r-btn);border:1px solid var(--line);background:#fff;color:var(--ink);font-size:16px;}
.drawer-list li{border-bottom:1px solid var(--line);}
.drawer-list a{display:block;padding:14px 2px;font-size:15px;font-weight:500;}
.drawer-list a.is-active{color:var(--clay);font-weight:700;}
.drawer-note{margin-top:20px;font-size:13px;color:var(--muted);line-height:1.8;}

/* hero */
.hero{position:relative;background:var(--ink);color:#fff;overflow:hidden;}
.hero-bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.32;}
.hero::after{content:"";position:absolute;inset:0;background:linear-gradient(105deg,rgba(31,42,68,.94) 0%,rgba(31,42,68,.86) 46%,rgba(31,42,68,.58) 100%);}
.hero-inner{position:relative;z-index:2;display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;padding:76px 0 68px;}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:13px;font-weight:600;letter-spacing:.12em;color:#F0B79C;margin-bottom:18px;}
.hero h1{color:#fff;font-size:40px;line-height:1.28;margin-bottom:18px;max-width:620px;}
.hero-sub{color:rgba(255,255,255,.82);font-size:17px;max-width:520px;margin-bottom:14px;}
.hero-points{display:flex;flex-wrap:wrap;gap:10px;margin:0 0 26px;}
.hero-points span{font-size:13px;padding:6px 12px;border-radius:999px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.2);color:rgba(255,255,255,.9);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-stats{display:flex;gap:34px;margin-top:36px;flex-wrap:wrap;}
.hero-stats div strong{display:block;font-size:26px;font-weight:700;color:#fff;line-height:1.2;}
.hero-stats div span{font-size:13px;color:rgba(255,255,255,.7);}
.hero-media{position:relative;border:1px solid rgba(255,255,255,.28);border-radius:var(--r-card);overflow:hidden;background:var(--ph);}
.hero-media img{width:100%;height:340px;object-fit:cover;}
.media-tag{position:absolute;left:14px;bottom:14px;background:rgba(31,42,68,.86);color:#fff;font-size:13px;padding:7px 14px;border-radius:999px;border:1px solid rgba(255,255,255,.2);}

/* cover strip */
.strip-grid{display:grid;grid-template-columns:repeat(6,1fr);gap:18px;}
.cover-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;}
.cover-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--ink);}
.cover-card img{width:100%;height:96px;object-fit:cover;background:var(--ph);}
.cover-card .cover-body{padding:14px 16px 16px;}
.cover-card h3{font-size:15px;margin-bottom:6px;}
.cover-card p{font-size:13px;color:var(--muted);margin:0;}
.cover-card:hover h3{color:var(--clay);}

/* category cards */
.cat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.cat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);display:flex;flex-direction:column;gap:14px;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;}
.cat-card:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--ink);}
.cat-top{display:flex;align-items:flex-start;gap:16px;}
.cat-index{font-size:22px;font-weight:700;color:var(--clay);line-height:1;min-width:38px;}
.cat-card h3{font-size:20px;margin-bottom:8px;}
.cat-card p{font-size:14px;color:var(--muted);margin:0;max-width:none;}
.cat-tags{display:flex;flex-wrap:wrap;gap:8px;}
.cat-foot{display:flex;align-items:center;justify-content:space-between;border-top:1px dashed var(--line);padding-top:14px;margin-top:auto;}
.cat-foot span{font-size:13px;color:var(--muted);}
.cat-foot a{font-size:14px;font-weight:600;color:var(--ink);display:inline-flex;align-items:center;gap:6px;}
.cat-foot a:hover{color:var(--clay);}

/* featured */
.feat-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:stretch;}
.feat-main{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);display:flex;flex-direction:column;transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;}
.feat-main:hover{transform:translateY(-3px);box-shadow:var(--sh-2);border-color:var(--ink);}
.feat-main img{width:100%;height:260px;object-fit:cover;background:var(--ph);}
.feat-main-body{padding:24px;}
.feat-main h3{font-size:22px;margin:12px 0 10px;}
.feat-main p{font-size:15px;color:var(--muted);margin:0 0 16px;}
.feat-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);}
.feat-side{display:grid;grid-template-rows:repeat(4,1fr);gap:16px;}
.mini-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:16px 18px;box-shadow:var(--sh-1);display:flex;gap:14px;align-items:center;transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;}
.mini-card:hover{transform:translateY(-3px);border-color:var(--ink);box-shadow:var(--sh-2);}
.mini-card img{width:64px;height:64px;object-fit:cover;border-radius:8px;border:1px solid var(--line);background:var(--ph);flex-shrink:0;}
.mini-card h4{font-size:15px;margin-bottom:4px;line-height:1.45;}
.mini-card p{font-size:13px;color:var(--muted);margin:0;}
.mini-card:hover h4{color:var(--clay);}

/* latest */
.latest-list{display:flex;flex-direction:column;gap:16px;}
.latest-item{display:flex;gap:20px;align-items:center;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:18px 22px 18px 18px;box-shadow:var(--sh-1);transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;}
.latest-item:hover{transform:translateY(-3px);border-color:var(--ink);box-shadow:var(--sh-2);}
.latest-thumb{width:160px;height:100px;flex-shrink:0;border-radius:8px;overflow:hidden;border:1px solid var(--line);background:var(--ph);}
.latest-thumb img{width:100%;height:100%;object-fit:cover;}
.latest-body{flex:1;min-width:0;}
.latest-title{font-size:17px;margin-bottom:8px;line-height:1.5;}
.latest-item:hover .latest-title{color:var(--clay);}
.latest-sum{font-size:14px;color:var(--muted);margin:0 0 10px;max-width:660px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.latest-meta{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--muted);flex-wrap:wrap;}
.latest-go{font-size:14px;font-weight:600;color:var(--ink);white-space:nowrap;display:inline-flex;align-items:center;gap:6px;}
.latest-item:hover .latest-go{color:var(--clay);}
.latest-more{margin-top:26px;}
.empty-state{background:var(--card);border:1px dashed var(--line);border-radius:var(--r-card);padding:46px 24px;text-align:center;}
.empty-state i{font-size:28px;color:var(--clay);margin-bottom:14px;display:block;}
.empty-state p{font-size:15px;color:var(--muted);margin:0 auto 16px;max-width:520px;}

/* rail */
.rail{margin:0 -24px;padding:0 24px;overflow-x:auto;scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;}
.rail-track{display:flex;gap:20px;padding-bottom:10px;}
.rail-card{width:280px;flex:0 0 280px;scroll-snap-align:start;background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;box-shadow:var(--sh-1);transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;}
.rail-card:hover{transform:translateY(-3px);border-color:var(--ink);box-shadow:var(--sh-2);}
.rail-card img{width:100%;height:140px;object-fit:cover;background:var(--ph);}
.rail-body{padding:18px 20px 20px;}
.rail-body h3{font-size:16px;margin:10px 0 8px;}
.rail-body p{font-size:13px;color:var(--muted);margin:0;}
.rail-card:hover h3{color:var(--clay);}

/* trust / stats */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.stat-card{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);padding:24px;box-shadow:var(--sh-1);}
.stat-card strong{display:block;font-size:30px;font-weight:700;color:var(--ink);line-height:1.15;margin-bottom:8px;}
.stat-card span{font-size:14px;color:var(--muted);display:block;line-height:1.75;}
.trust-grid{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:34px;}
.trust-item{background:#FFFDF9;border:1px solid var(--line);border-radius:var(--r-card);padding:24px;}
.trust-item h3{font-size:17px;margin-bottom:10px;display:flex;align-items:center;gap:10px;}
.trust-item h3 i{color:var(--clay);font-size:15px;}
.trust-item p{font-size:14px;color:var(--muted);margin:0;}

/* faq */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:920px;}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--r-card);box-shadow:var(--sh-1);overflow:hidden;}
.faq-item summary{list-style:none;cursor:pointer;padding:20px 24px;font-size:16px;font-weight:600;color:var(--ink);display:flex;align-items:center;justify-content:space-between;gap:16px;}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{content:"+";font-size:20px;font-weight:400;color:var(--clay);line-height:1;transition:transform .2s ease;}
.faq-item[open] summary::after{content:"−";}
.faq-item[open] summary{color:var(--clay);}
.faq-body{padding:0 24px 22px;font-size:15px;color:var(--muted);line-height:1.85;}
.faq-body p{margin:0;max-width:760px;}

/* cta band */
.cta-band{background:var(--ink);color:#fff;padding:64px 0;position:relative;overflow:hidden;}
.cta-band::before{content:"";position:absolute;inset:0;background-image:url('/assets/images/backpic/back-3.webp');background-size:cover;background-position:center;opacity:.16;}
.cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:34px;flex-wrap:wrap;}
.cta-inner h2{color:#fff;font-size:28px;margin-bottom:10px;}
.cta-inner p{color:rgba(255,255,255,.78);margin:0;font-size:15px;max-width:620px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* footer */
.site-footer{background:#182136;color:rgba(255,255,255,.8);padding:56px 0 26px;font-size:14px;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:34px;padding-bottom:34px;border-bottom:1px solid rgba(255,255,255,.12);}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{background:#fff;color:var(--ink);}
.footer-brand span{color:#fff;font-size:17px;font-weight:700;}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;font-weight:700;}
.footer-col li{margin-bottom:10px;}
.footer-col a{color:rgba(255,255,255,.8);font-size:14px;position:relative;padding-left:0;transition:all .2s ease;}
.footer-col a:hover{color:#fff;padding-left:10px;}
.footer-col a:hover::before{content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);width:4px;height:4px;border-radius:50%;background:var(--clay);}
.footer-col p{color:rgba(255,255,255,.7);font-size:13px;line-height:1.85;margin:0;max-width:320px;}
.footer-bottom{padding-top:22px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;font-size:13px;color:rgba(255,255,255,.6);}
.footer-bottom a{color:rgba(255,255,255,.75);}
.footer-bottom a:hover{color:#fff;}

/* responsive */
@media (max-width:1199px){
  .hero h1{font-size:34px;}
  .strip-grid{grid-template-columns:repeat(3,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .mega-panel{width:620px;right:-60px;}
}
@media (max-width:991px){
  :root{--sec:56px;}
  .nav-main{display:none;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .hero-inner{grid-template-columns:1fr;gap:34px;padding:56px 0 52px;}
  .hero h1{font-size:32px;max-width:none;}
  .hero-media img{height:280px;}
  .cat-grid{grid-template-columns:1fr;}
  .feat-grid{grid-template-columns:1fr;}
  .feat-side{grid-template-rows:none;grid-template-columns:1fr 1fr;}
  .trust-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;}
}
@media (max-width:767px){
  :root{--sec:44px;}
  body{font-size:15.5px;}
  .section-title{font-size:24px;}
  .hero h1{font-size:28px;}
  .hero-sub{font-size:16px;}
  .hero-stats{gap:22px;}
  .hero-stats div strong{font-size:22px;}
  .strip-grid{grid-template-columns:1fr 1fr;}
  .feat-side{grid-template-columns:1fr;}
  .latest-item{flex-direction:column;align-items:flex-start;gap:14px;}
  .latest-thumb{width:100%;height:170px;}
  .stat-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;gap:26px;}
  .cta-inner{flex-direction:column;align-items:flex-start;}
  .btn{width:100%;}
  .hero-actions .btn{width:100%;}
  .rail{margin:0 -16px;padding:0 16px;}
  .container{padding:0 16px;}
}

/* roulang page: article */
:root{
  --ink:#1F2A44;
  --ink-soft:#33415F;
  --orange:#D9663D;
  --orange-soft:#FBEDE7;
  --green:#4E7C5B;
  --green-soft:#E7F0E9;
  --paper:#F6F4EF;
  --white:#FFFFFF;
  --line:#E3DFD6;
  --muted:#6E7385;
  --shadow-1:0 2px 10px rgba(15,27,45,.06);
  --shadow-2:0 10px 28px rgba(15,27,45,.12);
  --radius-card:10px;
  --radius-btn:8px;
  --radius-pill:999px;
  --gap:24px;
  --section-pad:72px;
  --font:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:#22283A;
  background:var(--paper);
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .2s ease,border-color .2s ease,background .2s ease;}
a:hover{color:var(--orange);}
p{margin:0 0 1.1em;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.3;color:var(--ink);}
ul,ol{margin:0;padding:0;list-style:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;outline:none;}
:focus-visible{outline:2px solid var(--orange);outline-offset:3px;}
::selection{background:var(--orange);color:#fff;}

.container{width:100%;max-width:1180px;margin:0 auto;padding:0 20px;}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  min-height:72px;
}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);letter-spacing:.5px;}
.brand-mark{
  width:34px;height:34px;flex:0 0 34px;
  display:flex;align-items:center;justify-content:center;
  background:var(--ink);color:#fff;border-radius:8px;
  font-size:17px;font-weight:700;
}
.brand-text{font-size:19px;}
.brand-text span{color:var(--orange);}

.nav-main{margin-left:auto;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-item{position:relative;}
.nav-link{
  display:block;
  padding:10px 12px;
  font-size:15.5px;
  font-weight:500;
  color:var(--ink-soft);
  position:relative;
  white-space:nowrap;
}
.nav-link::after{
  content:"";
  position:absolute;left:12px;right:12px;bottom:2px;
  height:2px;background:var(--orange);
  transform:scaleX(0);transform-origin:left center;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--ink);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-item.is-active .nav-link{color:var(--ink);font-weight:700;}
.nav-item.is-active .nav-link::after{height:3px;transform:scaleX(1);}

.mega-panel{
  position:absolute;
  top:calc(100% + 10px);
  right:0;
  width:660px;
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);
  padding:22px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.nav-item.has-mega:hover .mega-panel,
.nav-item.has-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-inner{display:grid;grid-template-columns:1fr 1fr;gap:22px;}
.mega-title{font-size:13px;font-weight:700;letter-spacing:1px;color:var(--muted);margin-bottom:10px;}
.mega-list li{margin-bottom:8px;}
.mega-link{display:flex;align-items:center;gap:8px;font-size:15px;font-weight:500;color:var(--ink-soft);}
.mega-link::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--green);flex:0 0 6px;}
.mega-link:hover{color:var(--orange);}
.mega-post{
  display:block;padding:12px;border:1px solid var(--line);border-radius:8px;
  margin-bottom:10px;background:#FCFBF8;
}
.mega-post strong{display:block;font-size:14.5px;color:var(--ink);font-weight:600;line-height:1.5;}
.mega-post span{display:block;font-size:13px;color:var(--muted);margin-top:4px;}
.mega-post:hover{border-color:var(--ink);}
.mega-post:hover strong{color:var(--orange);}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  background:var(--white);
  color:var(--ink);
  cursor:pointer;
  font-size:17px;
}
.nav-mask{
  display:none;position:fixed;inset:0;background:rgba(15,27,45,.4);z-index:70;
}
.nav-mask.is-open{display:block;}

/* ---------- breadcrumb ---------- */
.crumb-bar{background:var(--white);border-bottom:1px solid var(--line);}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--muted);padding:14px 0;
}
.crumb a{color:var(--muted);}
.crumb a:hover{color:var(--orange);}
.crumb .sep{color:#B9B4A8;}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;
  padding:56px 0 48px;
  background-image:linear-gradient(100deg,rgba(20,29,48,.94) 0%,rgba(20,29,48,.82) 48%,rgba(20,29,48,.55) 100%),url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  color:#fff;
}
.article-hero .cat-chip{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:13px;font-weight:600;
  padding:6px 14px;border-radius:var(--radius-pill);
  margin-bottom:18px;
}
.article-hero .cat-chip i{color:#F0A98C;}
.article-hero h1{
  color:#fff;
  font-size:40px;
  line-height:1.3;
  max-width:900px;
  margin-bottom:18px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:14px;color:rgba(255,255,255,.78);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.45);}
.article-meta .share-btn{
  display:inline-flex;align-items:center;gap:8px;
  border:1px solid rgba(255,255,255,.35);
  background:transparent;color:#fff;
  padding:6px 14px;border-radius:var(--radius-pill);
  font-size:13px;cursor:pointer;
  transition:background .2s ease,color .2s ease,border-color .2s ease;
}
.article-meta .share-btn:hover{background:var(--orange);border-color:var(--orange);color:#fff;}

/* ---------- article body ---------- */
.section{padding:var(--section-pad) 0;}
.section-tight{padding:52px 0;}

.reading-wrap{max-width:920px;margin:0 auto;}
.article-card{
  background:var(--white);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);
  padding:40px;
}
.article-lead{
  font-size:17px;
  color:var(--ink-soft);
  border-left:3px solid var(--orange);
  background:#FAF9F5;
  padding:16px 20px;
  border-radius:0 8px 8px 0;
  margin-bottom:28px;
}
.article-figure{margin:0 0 28px;}
.article-figure img{
  width:100%;height:280px;object-fit:cover;
  border:1px solid var(--line);border-radius:var(--radius-card);
  background:#EDEAE3;
}
.article-figure figcaption{font-size:14px;color:var(--muted);margin-top:10px;text-align:center;}

.article-body{font-size:17px;line-height:1.85;color:#2B3245;}
.article-body > *{max-width:100%;}
.article-body p{margin:0 0 1.1em;}
.article-body h2{
  font-size:28px;margin:2em 0 .7em;padding-left:14px;
  border-left:5px solid var(--orange);line-height:1.35;
}
.article-body h3{font-size:20px;margin:1.7em 0 .6em;color:var(--ink);}
.article-body h4{font-size:17px;margin:1.4em 0 .5em;color:var(--ink-soft);}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0;}
.article-body ul li,.article-body ol li{
  position:relative;
  padding-left:24px;
  margin-bottom:10px;
  line-height:1.85;
}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;
  width:7px;height:7px;border-radius:50%;background:var(--green);
}
.article-body ol{counter-reset:artlist;}
.article-body ol li{counter-increment:artlist;}
.article-body ol li::before{
  content:counter(artlist);
  position:absolute;left:0;top:.28em;
  width:20px;height:20px;border-radius:50%;
  background:var(--ink);color:#fff;
  font-size:12px;line-height:20px;text-align:center;font-weight:700;
}
.article-body blockquote{
  margin:1.6em 0;
  padding:16px 20px;
  background:#FAF9F5;
  border-left:3px solid var(--orange);
  border-radius:0 8px 8px 0;
  color:var(--ink-soft);
}
.article-body blockquote p:last-child{margin-bottom:0;}
.article-body img{
  width:100%;height:auto;object-fit:cover;
  border:1px solid var(--line);border-radius:var(--radius-card);
  margin:1.4em 0;background:#EDEAE3;
}
.article-body figure{margin:1.6em 0;}
.article-body figcaption{font-size:14px;color:var(--muted);text-align:center;margin-top:8px;}
.article-body table{
  width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15.5px;
  border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;
}
.article-body thead th{
  background:var(--ink);color:#fff;font-weight:600;
  text-align:left;padding:12px 16px;font-size:15px;
}
.article-body tbody td{padding:12px 16px;border-top:1px solid var(--line);}
.article-body tbody tr:nth-child(even){background:#FAF9F5;}
.article-body code{
  background:#F1EEE7;border:1px solid var(--line);border-radius:6px;
  padding:2px 6px;font-size:14.5px;color:#8C4527;
}
.article-body pre{
  background:#1B2436;color:#E8E6E0;padding:18px 20px;border-radius:var(--radius-card);
  overflow-x:auto;font-size:14.5px;line-height:1.7;margin:1.6em 0;
}
.article-body pre code{background:none;border:0;color:inherit;padding:0;}
.article-body a{color:var(--orange);border-bottom:1px solid rgba(217,102,61,.35);}
.article-body a:hover{color:var(--ink);border-bottom-color:var(--ink);}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2em 0;}

.notice-empty{
  background:var(--white);border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:52px 28px;text-align:center;box-shadow:var(--shadow-1);
}
.notice-empty i{font-size:34px;color:var(--orange);margin-bottom:14px;display:block;}
.notice-empty h2{font-size:22px;margin-bottom:10px;}
.notice-empty p{color:var(--muted);margin-bottom:20px;}

/* ---------- end row ---------- */
.end-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:var(--gap);margin-top:32px;}
.panel{
  background:var(--white);border:1px solid var(--line);
  border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1);
}
.panel h3{font-size:17px;margin-bottom:16px;display:flex;align-items:center;gap:10px;}
.panel h3 i{color:var(--orange);}
.related-item{
  display:block;padding:12px 0;border-bottom:1px dashed var(--line);
}
.related-item:last-child{border-bottom:0;padding-bottom:0;}
.related-item strong{display:block;font-size:15.5px;color:var(--ink);font-weight:600;line-height:1.6;transition:color .2s ease;}
.related-item span{font-size:13px;color:var(--muted);}
.related-item:hover strong{color:var(--orange);}
.end-actions{display:flex;flex-direction:column;gap:12px;}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:46px;padding:0 22px;border-radius:var(--radius-btn);
  font-size:15.5px;font-weight:600;cursor:pointer;
  border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-primary{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn-primary:hover{background:var(--orange);border-color:var(--orange);color:#fff;transform:translateY(-2px);}
.btn-ghost{background:var(--white);color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;}
.btn-block{width:100%;}

/* ---------- rail ---------- */
.rail-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:26px;}
.rail-head h2{font-size:28px;}
.rail-head p{color:var(--muted);font-size:15px;margin:8px 0 0;max-width:620px;}
.rail{
  display:flex;gap:20px;overflow-x:auto;padding:6px 4px 18px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.rail::-webkit-scrollbar{height:8px;}
.rail::-webkit-scrollbar-thumb{background:#D8D3C8;border-radius:99px;}
.rail-card{
  flex:0 0 280px;scroll-snap-align:start;
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rail-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--ink);}
.rail-card img{width:100%;height:140px;object-fit:cover;border-bottom:1px solid var(--line);background:#EDEAE3;}
.rail-card .rail-body{padding:18px;}
.rail-card h3{font-size:16.5px;line-height:1.5;margin-bottom:8px;}
.rail-card:hover h3{color:var(--orange);}
.rail-card p{font-size:14px;color:var(--muted);margin:0;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:var(--radius-pill);
}
.badge-green{background:var(--green-soft);color:#2F5C3C;}
.badge-orange{background:var(--orange-soft);color:#A9471F;}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px;}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 24px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:400;color:var(--orange);
  transition:transform .2s ease;
}
.faq-item[open] summary::after{content:"−";}
.faq-item summary:hover{color:var(--orange);}
.faq-item .faq-body{
  padding:0 24px 20px;font-size:15px;line-height:1.85;color:var(--muted);
}

/* ---------- cta ---------- */
.cta-band{background:var(--ink);color:#fff;padding:56px 0;}
.cta-inner{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;}
.cta-copy h2{color:#fff;font-size:28px;margin-bottom:10px;}
.cta-copy p{color:rgba(255,255,255,.76);margin:0;max-width:560px;font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}
.cta-band .btn-primary{background:var(--white);color:var(--ink);border-color:var(--white);}
.cta-band .btn-primary:hover{background:var(--orange);border-color:var(--orange);color:#fff;}
.cta-band .btn-ghost{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.cta-band .btn-ghost:hover{background:var(--orange);border-color:var(--orange);color:#fff;}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.8);padding:56px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:16px;}
.footer-brand .brand-mark{background:var(--orange);}
.footer-col p{color:rgba(255,255,255,.72);font-size:14.5px;line-height:1.85;margin:0;max-width:340px;}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.5px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{
  color:rgba(255,255,255,.8);font-size:14.5px;position:relative;padding-left:0;
  transition:color .2s ease,padding .2s ease;
}
.footer-col ul a::before{
  content:"";position:absolute;left:-12px;top:50%;width:0;height:2px;background:var(--orange);
  transform:translateY(-50%);transition:width .2s ease;
}
.footer-col ul a:hover{color:#fff;padding-left:8px;}
.footer-col ul a:hover::before{width:6px;left:-8px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.6);
}
.footer-bottom a{color:rgba(255,255,255,.8);}
.footer-bottom a:hover{color:var(--orange);}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .nav-link{padding:10px 9px;font-size:15px;}
  .mega-panel{width:600px;}
}
@media (max-width:991px){
  :root{--section-pad:52px;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .nav-main{
    position:fixed;top:0;right:0;bottom:0;width:300px;
    background:var(--white);z-index:80;
    padding:26px 20px;overflow-y:auto;
    transform:translateX(102%);transition:transform .28s ease;
    box-shadow:-10px 0 30px rgba(15,27,45,.16);
    margin-left:0;
  }
  .nav-main.is-open{transform:translateX(0);}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px;}
  .nav-link{padding:14px 6px;font-size:16px;border-bottom:1px solid var(--line);}
  .nav-link::after{display:none;}
  .nav-item.is-active .nav-link{color:var(--orange);}
  .mega-panel{
    position:static;width:auto;opacity:1;visibility:visible;transform:none;
    box-shadow:none;border:0;border-radius:0;padding:6px 0 14px;background:transparent;
  }
  .mega-inner{grid-template-columns:1fr;gap:14px;}
  .article-hero h1{font-size:30px;}
  .article-card{padding:26px;}
  .end-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:26px;}
}
@media (max-width:767px){
  :root{--section-pad:44px;--gap:18px;}
  body{font-size:15.5px;}
  .article-hero{padding:40px 0 34px;}
  .article-hero h1{font-size:25px;}
  .article-body{font-size:16px;}
  .article-body h2{font-size:22px;margin-top:1.6em;}
  .article-body h3{font-size:18px;}
  .article-card{padding:20px;}
  .article-figure img{height:190px;}
  .rail-head h2{font-size:22px;}
  .cta-copy h2{font-size:23px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{flex:1 1 100%;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .article-hero h1{font-size:22px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;}
  .brand-text{font-size:17px;}
}

/* roulang page: category1 */
:root{
  --ink:#1F2A44;
  --ink-soft:#33405E;
  --orange:#D9663D;
  --green:#4E7C5B;
  --bg:#F6F4EF;
  --card:#FFFFFF;
  --line:#E3DFD6;
  --text:#22293A;
  --muted:#6B7280;
  --radius-card:10px;
  --radius-btn:8px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(15,27,45,.04),0 6px 16px rgba(15,27,45,.04);
  --shadow-2:0 8px 24px rgba(15,27,45,.10);
  --gap:24px;
  --sec-pad:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--ink);text-decoration:none;transition:color .18s ease,border-color .18s ease,background-color .18s ease}
a:hover{color:var(--orange)}
button,input{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;gap:28px;height:72px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;
  font-weight:700;font-size:17px;letter-spacing:.5px;
}
.brand-text{font-size:19px;font-weight:700;color:var(--ink);letter-spacing:.4px}
.brand-text span{color:var(--orange)}
.nav-main{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:2px}
.nav-item{position:relative}
.nav-link{
  display:block;padding:10px 12px 12px;
  font-size:15px;font-weight:500;color:var(--ink);
  position:relative;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;
  background:var(--orange);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--orange)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-item.is-active .nav-link{color:var(--orange);font-weight:600}
.nav-item.is-active .nav-link::after{transform:scaleX(1);height:3px;border-radius:2px}
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:0;
  width:720px;max-width:calc(100vw - 40px);
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:22px;
  opacity:0;visibility:hidden;transform:translateY(8px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
  z-index:90;
}
.nav-item.has-mega:hover .mega-panel,
.nav-item.has-mega:focus-within .mega-panel{
  opacity:1;visibility:visible;transform:translateY(0);
}
.mega-inner{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.mega-title{
  font-size:13px;font-weight:700;color:var(--muted);
  letter-spacing:.08em;margin-bottom:12px;text-transform:uppercase;
}
.mega-list li{margin-bottom:2px}
.mega-link{
  display:flex;align-items:center;gap:9px;
  padding:8px 10px;border-radius:var(--radius-btn);
  font-size:14.5px;color:var(--ink);
}
.mega-link::before{
  content:"";width:6px;height:6px;border-radius:50%;background:var(--green);flex:0 0 auto;
}
.mega-link:hover{background:var(--bg);color:var(--orange)}
.mega-post{
  display:block;padding:10px 12px;border-radius:var(--radius-btn);
  border:1px solid transparent;margin-bottom:6px;
}
.mega-post strong{display:block;font-size:14.5px;font-weight:600;color:var(--ink)}
.mega-post span{display:block;font-size:13px;color:var(--muted);line-height:1.6}
.mega-post:hover{background:var(--bg);border-color:var(--line);color:var(--orange)}
.mega-post:hover strong{color:var(--orange)}
.mega-cta{
  display:inline-flex;align-items:center;gap:6px;margin-top:6px;
  font-size:14px;font-weight:600;color:var(--orange);
}

/* ---------- Breadcrumb ---------- */
.crumb-bar{padding:18px 0 0}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13.5px;color:var(--muted)}
.breadcrumb a{color:var(--muted)}
.breadcrumb a:hover{color:var(--orange)}
.breadcrumb span.sep{color:#B9B4A8}
.breadcrumb .current{color:var(--ink);font-weight:600}

/* ---------- Page hero ---------- */
.page-hero{
  position:relative;margin-top:18px;border-radius:var(--radius-card);overflow:hidden;
  min-height:220px;display:flex;align-items:center;
  border:1px solid var(--line);
  background-image:linear-gradient(90deg,rgba(31,42,68,.92) 0%,rgba(31,42,68,.72) 46%,rgba(31,42,68,.34) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-inner{position:relative;z-index:2;padding:38px 40px;max-width:720px}
.page-hero h1{
  color:#fff;font-size:34px;font-weight:700;margin-bottom:12px;letter-spacing:.2px;
}
.page-hero p{color:rgba(255,255,255,.86);font-size:16px;margin:0;max-width:560px}
.hero-tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:18px}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--radius-pill);
  font-size:13px;background:rgba(255,255,255,.14);color:#fff;
  border:1px solid rgba(255,255,255,.28);
}

/* ---------- Layout ---------- */
.layout{
  display:grid;grid-template-columns:300px minmax(0,1fr);
  gap:34px;padding:36px 0 var(--sec-pad);
  align-items:start;
}
.side-col{position:sticky;top:96px;display:grid;gap:20px}
.side-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-1);
}
.side-title{
  font-size:13px;font-weight:700;color:var(--muted);
  letter-spacing:.08em;margin-bottom:14px;text-transform:uppercase;
}
.side-nav li{margin-bottom:2px}
.side-nav a{
  display:block;padding:8px 10px;border-radius:var(--radius-btn);
  font-size:14.5px;color:var(--ink-soft);border-left:2px solid transparent;
}
.side-nav a:hover{background:var(--bg);color:var(--orange);border-left-color:var(--orange)}
.side-links li{margin-bottom:6px}
.side-links a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:9px 10px;border-radius:var(--radius-btn);
  font-size:14.5px;color:var(--ink-soft);
}
.side-links a:hover{background:var(--bg);color:var(--orange)}
.side-count{
  font-size:12.5px;color:var(--green);background:rgba(78,124,91,.10);
  border-radius:var(--radius-pill);padding:2px 9px;font-weight:600;
}
.side-note{
  background:#fff;border:1px dashed var(--line);border-radius:var(--radius-card);
  padding:18px;font-size:14px;color:var(--muted);line-height:1.8;
}
.side-note strong{display:block;color:var(--ink);font-size:14.5px;margin-bottom:6px}

/* ---------- Sections ---------- */
.sec{margin-bottom:52px}
.sec:last-child{margin-bottom:0}
.sec-head{margin-bottom:22px}
.sec-title{font-size:26px;margin-bottom:10px}
.sec-desc{font-size:15.5px;color:var(--muted);max-width:720px;margin:0}
.prose{max-width:720px}
.prose p{font-size:16px;color:#3B4356}

/* ---------- Info cards ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.grid-2{display:grid;grid-template-columns:repeat(2,1fr);gap:var(--gap)}
.grid-4{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.info-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.info-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--ink)}
.info-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:9px;
  background:rgba(217,102,61,.12);color:var(--orange);
  font-weight:700;font-size:15px;margin-bottom:14px;
}
.info-title{font-size:18px;margin-bottom:8px}
.info-text{font-size:14.8px;color:#4A5165;line-height:1.8;margin:0}

/* ---------- Group cards ---------- */
.group-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-1);display:flex;flex-direction:column;gap:12px;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.group-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--ink)}
.group-icon{
  width:44px;height:44px;border-radius:10px;
  background:var(--bg);color:var(--ink);
  display:flex;align-items:center;justify-content:center;font-size:18px;
  border:1px solid var(--line);
}
.group-title{font-size:18px}
.group-desc{font-size:14.8px;color:#4A5165;margin:0;line-height:1.8}
.group-meta{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto}

/* ---------- Badges ---------- */
.badge{
  display:inline-flex;align-items:center;
  font-size:13px;line-height:1;padding:5px 11px;border-radius:var(--radius-pill);
  font-weight:600;
}
.badge-green{background:rgba(78,124,91,.12);color:#3C6349}
.badge-orange{background:rgba(217,102,61,.12);color:#B14E2B}
.badge-ink{background:rgba(31,42,68,.08);color:var(--ink-soft)}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.step{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;position:relative;box-shadow:var(--shadow-1);
}
.step-num{
  font-size:13px;font-weight:700;color:var(--orange);letter-spacing:.1em;margin-bottom:10px;
}
.step-title{font-size:17px;margin-bottom:8px}
.step-text{font-size:14.5px;color:#4A5165;margin:0;line-height:1.8}

/* ---------- Entry list ---------- */
.entry-list{display:grid;gap:12px}
.entry-row{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px 24px;display:grid;grid-template-columns:200px minmax(0,1fr) auto;
  gap:20px;align-items:center;box-shadow:var(--shadow-1);
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.entry-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--ink)}
.entry-name{font-size:16.5px;font-weight:700;color:var(--ink)}
.entry-name:hover{color:var(--orange)}
.entry-desc{font-size:14.5px;color:#4A5165;margin:0;line-height:1.75}
.entry-badges{display:flex;flex-wrap:wrap;gap:8px;justify-content:flex-end}
.entry-more{font-size:14px;font-weight:600;color:var(--orange);white-space:nowrap}

/* ---------- Check list ---------- */
.check-list{display:grid;gap:12px;max-width:760px}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  padding:16px 20px;font-size:15px;color:#3B4356;box-shadow:var(--shadow-1);
}
.check-list i{color:var(--green);margin-top:5px;flex:0 0 auto}

/* ---------- FAQ ---------- */
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow-1);
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  font-size:16px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  transition:color .18s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;font-weight:400;color:var(--orange);line-height:1}
.faq-item[open] summary{color:var(--orange);border-bottom:1px solid var(--line)}
.faq-item[open] summary::after{content:"−"}
.faq-a{padding:16px 22px 20px;font-size:15px;line-height:1.85;color:#4A5165;margin:0}

/* ---------- Related ---------- */
.rel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.rel-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;box-shadow:var(--shadow-1);display:flex;flex-direction:column;
  transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.rel-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--ink)}
.rel-card img{width:100%;height:140px;object-fit:cover;border-bottom:1px solid var(--line);background:#EDEAE3}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:8px;flex:1}
.rel-card h3{font-size:16.5px}
.rel-card p{font-size:14px;color:var(--muted);margin:0;line-height:1.75}
.rel-card .rel-link{margin-top:auto;font-size:14px;font-weight:600;color:var(--orange)}

/* ---------- CTA ---------- */
.cta-band{
  background:var(--ink);border-radius:var(--radius-card);
  padding:48px 44px;color:#fff;display:flex;flex-wrap:wrap;
  align-items:center;justify-content:space-between;gap:28px;
}
.cta-title{color:#fff;font-size:26px;margin-bottom:10px}
.cta-text{color:rgba(255,255,255,.78);font-size:15px;margin:0;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:background-color .18s ease,color .18s ease,border-color .18s ease,transform .18s ease;
}
.btn:focus-visible{outline:2px solid var(--orange);outline-offset:2px}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--orange);color:#fff}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-light{background:#fff;color:var(--ink);border-color:#fff}
.btn-light:hover{background:var(--orange);color:#fff;border-color:var(--orange)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.5)}
.btn-outline-light:hover{background:#fff;color:var(--ink);border-color:#fff}

/* ---------- Footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.8);padding:64px 0 0;margin-top:24px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding-bottom:40px}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  color:#fff;font-size:18px;font-weight:700;margin-bottom:14px;
}
.footer-brand .brand-mark{background:var(--orange)}
.footer-col p{font-size:14.5px;line-height:1.85;color:rgba(255,255,255,.72);margin:0}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:14px;font-weight:600}
.footer-col ul li{margin-bottom:9px}
.footer-col ul a{
  color:rgba(255,255,255,.8);font-size:14.5px;position:relative;padding-left:0;
  transition:color .18s ease,padding-left .18s ease;
}
.footer-col ul a::before{
  content:"";position:absolute;left:0;top:50%;width:0;height:2px;background:var(--orange);
  transform:translateY(-50%);transition:width .18s ease;
}
.footer-col ul a:hover{color:#fff;padding-left:12px}
.footer-col ul a:hover::before{width:8px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:12px;
  align-items:center;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.62);
}
.footer-bottom a{color:rgba(255,255,255,.82)}
.footer-bottom a:hover{color:var(--orange)}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .grid-4,.rel-grid{grid-template-columns:repeat(2,1fr)}
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991px){
  :root{--sec-pad:56px}
  .header-inner{height:auto;padding:10px 0;flex-wrap:wrap;gap:12px}
  .nav-main{width:100%;margin-left:0;overflow-x:auto;-webkit-overflow-scrolling:touch}
  .nav-list{gap:0;padding-bottom:4px}
  .nav-link{font-size:14px;padding:8px 10px 10px}
  .nav-link::after{left:10px;right:10px;bottom:2px}
  .mega-panel{display:none}
  .layout{grid-template-columns:1fr;gap:28px;padding-top:28px}
  .side-col{position:static}
  .page-hero h1{font-size:28px}
  .page-hero p{font-size:15px}
  .grid-3{grid-template-columns:1fr 1fr}
  .entry-row{grid-template-columns:1fr;gap:12px}
  .entry-badges{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:768px){
  :root{--sec-pad:44px;--gap:18px}
  body{font-size:15.5px}
  .hero-inner{padding:28px 22px}
  .page-hero h1{font-size:24px}
  .sec-title{font-size:22px}
  .grid-3,.grid-2,.grid-4,.rel-grid,.steps{grid-template-columns:1fr}
  .side-card{padding:18px}
  .cta-band{padding:34px 24px}
  .cta-title{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:520px){
  .page-hero h1{font-size:22px}
  .entry-row{padding:18px}
  .btn{width:100%}
  .cta-actions .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --ink:#1F2A44;
  --ink-2:#2C3A5C;
  --clay:#D9663D;
  --clay-dark:#BF5330;
  --moss:#4E7C5B;
  --paper:#F6F4EF;
  --white:#FFFFFF;
  --line:#E3DFD6;
  --muted:#6B7280;
  --muted-2:#8A8578;
  --shadow-1:0 1px 2px rgba(15,27,45,.06);
  --shadow-2:0 10px 24px rgba(15,27,45,.10);
  --r-card:10px;
  --r-btn:8px;
  --r-pill:999px;
  --gap:24px;
  --sec-pad:72px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--ink);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--clay);}
h1,h2,h3,h4{margin:0 0 .6em;font-weight:700;line-height:1.3;color:var(--ink);letter-spacing:.2px;}
h1{font-size:40px;}
h2{font-size:28px;}
h3{font-size:20px;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
input,select,textarea{font-family:inherit;}
:focus-visible{outline:2px solid var(--clay);outline-offset:2px;border-radius:4px;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
.lead{font-size:17px;color:var(--ink-2);max-width:720px;}
.muted{color:var(--muted);}
[hidden]{display:none !important;}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;color:var(--ink);font-size:19px;letter-spacing:.4px;}
.brand:hover{color:var(--ink);}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:9px;
  background:var(--ink);color:#fff;font-size:17px;font-weight:700;letter-spacing:0;
}
.brand-text span{color:var(--clay);}
.nav-main{display:flex;align-items:center;}
.nav-list{display:flex;align-items:center;gap:2px;}
.nav-item{position:relative;}
.nav-link{
  position:relative;display:inline-block;padding:12px 12px;font-size:15.5px;font-weight:500;color:var(--ink);
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:6px;height:2px;
  background:var(--clay);transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--clay);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-item.is-active .nav-link{color:var(--ink);}
.nav-item.is-active .nav-link::after{transform:scaleX(1);background:var(--ink);height:3px;bottom:5px;}
.has-mega .mega-panel{
  position:absolute;top:calc(100% + 10px);right:0;
  width:720px;max-width:calc(100vw - 40px);
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-2);padding:22px;
  opacity:0;visibility:hidden;transform:translateY(6px);
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.has-mega:hover .mega-panel,
.has-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0);}
.mega-inner{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.mega-title{font-size:13px;font-weight:700;letter-spacing:1.4px;color:var(--muted-2);margin-bottom:12px;text-transform:uppercase;}
.mega-list li{margin-bottom:2px;}
.mega-link{position:relative;display:block;padding:7px 0 7px 16px;font-size:15px;color:var(--ink-2);border-bottom:1px solid transparent;}
.mega-link::before{
  content:"";position:absolute;left:0;top:50%;width:6px;height:6px;border-radius:50%;
  background:var(--moss);transform:translateY(-50%);
}
.mega-link:hover{color:var(--clay);}
.mega-post{display:block;padding:10px 12px;border:1px solid var(--line);border-radius:var(--r-btn);margin-bottom:10px;background:#FCFBF8;}
.mega-post strong{display:block;font-size:14.5px;font-weight:600;color:var(--ink);}
.mega-post span{display:block;font-size:13px;color:var(--muted);}
.mega-post:hover{border-color:var(--ink);}
.mega-post:hover strong{color:var(--clay);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;flex-direction:column;gap:5px;
  width:44px;height:44px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--white);cursor:pointer;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--ink);border-radius:2px;transition:.2s;}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0;}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg);}
.drawer-mask{position:fixed;inset:0;background:rgba(15,27,45,.4);z-index:80;}
.nav-drawer{
  position:fixed;top:0;right:0;z-index:90;width:min(330px,86vw);height:100%;
  background:var(--white);border-left:1px solid var(--line);
  transform:translateX(100%);transition:transform .28s ease;
  display:flex;flex-direction:column;overflow-y:auto;padding:18px 18px 32px;
}
.nav-drawer.is-open{transform:translateX(0);}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px;}
.drawer-head .brand{font-size:17px;}
.drawer-close{
  width:38px;height:38px;border:1px solid var(--line);background:var(--paper);
  border-radius:var(--r-btn);cursor:pointer;color:var(--ink);font-size:16px;
}
.drawer-links li{border-bottom:1px solid var(--line);}
.drawer-links a{display:block;padding:14px 4px;font-size:16px;font-weight:500;}
.drawer-links a.is-active{color:var(--clay);}
.drawer-note{margin-top:22px;font-size:14px;color:var(--muted);line-height:1.8;}

/* ============ 面包屑 ============ */
.breadcrumb-bar{padding:18px 0;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);}
.breadcrumb a{color:var(--muted);}
.breadcrumb a:hover{color:var(--clay);}
.breadcrumb .sep{color:var(--muted-2);}
.breadcrumb .current{color:var(--ink);font-weight:500;}

/* ============ Hero ============ */
.page-hero{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  min-height:220px;display:flex;align-items:center;
  border:1px solid var(--line);
  background:#1F2A44 url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(90deg,rgba(20,30,52,.90) 0%,rgba(20,30,52,.72) 52%,rgba(20,30,52,.32) 100%);
}
.hero-inner{position:relative;z-index:1;padding:44px 40px;max-width:760px;}
.hero-tag{
  display:inline-flex;align-items:center;gap:8px;margin-bottom:14px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(78,124,91,.28);border:1px solid rgba(255,255,255,.28);
  color:#fff;font-size:13px;letter-spacing:.6px;
}
.hero-tag i{color:#9FD3AF;font-size:11px;}
.page-hero h1{color:#fff;margin-bottom:12px;font-size:36px;text-shadow:0 1px 12px rgba(0,0,0,.25);}
.page-hero .hero-sub{color:rgba(255,255,255,.86);font-size:16.5px;max-width:620px;margin:0;}
.hero-meta{display:flex;flex-wrap:wrap;gap:20px;margin-top:20px;color:rgba(255,255,255,.8);font-size:14px;}
.hero-meta span{display:inline-flex;align-items:center;gap:7px;}

/* ============ 板块 ============ */
.section{padding:var(--sec-pad) 0 0;}
.section-head{max-width:760px;margin-bottom:28px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;font-weight:700;letter-spacing:1.6px;
  color:var(--clay);margin-bottom:8px;
}
.section-head h2{margin-bottom:10px;}
.section-head p{color:var(--ink-2);margin:0;}

/* ============ 数据块 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);margin-top:32px;}
.stat-card{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  padding:22px 24px;box-shadow:var(--shadow-1);
}
.stat-card .num{display:block;font-size:30px;font-weight:700;color:var(--ink);line-height:1.2;}
.stat-card .num em{font-style:normal;font-size:15px;color:var(--clay);margin-left:4px;}
.stat-card .label{display:block;margin-top:6px;font-size:14px;color:var(--muted);}

/* ============ 标签筛选条 ============ */
.tagbar{
  display:flex;flex-wrap:wrap;gap:10px;align-items:center;
  padding:14px 16px;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);box-shadow:var(--shadow-1);margin-bottom:26px;
}
.tagbar .tagbar-label{font-size:14px;color:var(--muted);margin-right:4px;}
.tag-btn{
  padding:8px 16px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:#FAF9F5;color:var(--ink-2);font-size:14px;cursor:pointer;
  transition:all .2s ease;
}
.tag-btn:hover{border-color:var(--ink);color:var(--ink);transform:translateY(-1px);}
.tag-btn.is-active{background:var(--ink);border-color:var(--ink);color:#fff;}

/* ============ 目录卡片网格 ============ */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.dir-card{
  display:flex;flex-direction:column;background:var(--white);
  border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;
  box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.dir-card:hover{transform:translateY(-3px);border-color:var(--ink);box-shadow:var(--shadow-2);}
.card-media{position:relative;display:block;background:#EDEAE3;}
.card-media img{width:100%;height:158px;object-fit:cover;border-bottom:1px solid var(--line);}
.card-media .badge{position:absolute;left:12px;top:12px;}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.card-body h3{font-size:18px;margin-bottom:8px;}
.card-body h3 a{color:var(--ink);}
.card-body h3 a:hover{color:var(--clay);}
.card-body p{font-size:14.5px;color:var(--muted);line-height:1.8;margin-bottom:16px;}
.card-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;
  padding-top:14px;border-top:1px dashed var(--line);font-size:13.5px;color:var(--muted-2);
}
.card-foot .card-link{font-weight:600;color:var(--clay);}
.card-foot .card-link i{font-size:11px;margin-left:4px;}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);font-size:13px;font-weight:500;
  background:rgba(78,124,91,.12);color:var(--moss);border:1px solid rgba(78,124,91,.22);
}
.badge-clay{background:rgba(217,102,61,.12);color:var(--clay);border-color:rgba(217,102,61,.22);}
.badge-ink{background:rgba(31,42,68,.08);color:var(--ink);border-color:rgba(31,42,68,.16);}

/* ============ 检索路径（步骤） ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.step{
  position:relative;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);padding:24px;box-shadow:var(--shadow-1);
  transition:transform .22s ease,box-shadow .22s ease;
}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);}
.step .idx{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;background:var(--ink);color:#fff;
  font-weight:700;font-size:15px;margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14.5px;color:var(--muted);line-height:1.8;margin:0;}

/* ============ 图文左右 ============ */
.split{display:grid;grid-template-columns:1fr 1fr;gap:40px;align-items:center;}
.split-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:#EDEAE3;}
.split-media img{width:100%;height:340px;object-fit:cover;}
.split-media .corner{
  position:absolute;right:14px;bottom:14px;padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(31,42,68,.86);color:#fff;font-size:13px;
}
.check-list li{
  position:relative;padding:10px 0 10px 30px;font-size:15.5px;color:var(--ink-2);
  border-bottom:1px solid var(--line);
}
.check-list li:last-child{border-bottom:0;}
.check-list li::before{
  content:"\f00c";font-family:"Font Awesome 6 Free";font-weight:900;
  position:absolute;left:0;top:11px;color:var(--moss);font-size:14px;
}

/* ============ FAQ ============ */
.faq-list{display:grid;gap:12px;max-width:880px;}
.faq-item{
  background:var(--white);border:1px solid var(--line);border-radius:var(--r-card);
  box-shadow:var(--shadow-1);overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;
  font-size:16px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:400;color:var(--clay);line-height:1;flex:none;
}
.faq-item[open] summary::after{content:"–";}
.faq-item summary:hover{color:var(--clay);}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--muted);line-height:1.85;border-top:1px solid var(--line);padding-top:16px;}

/* ============ 相关分类推荐 ============ */
.rel-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.rel-card{
  display:block;background:var(--white);border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px;box-shadow:var(--shadow-1);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.rel-card:hover{transform:translateY(-3px);border-color:var(--ink);box-shadow:var(--shadow-2);}
.rel-card .rel-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;background:rgba(217,102,61,.12);
  color:var(--clay);font-size:16px;margin-bottom:12px;
}
.rel-card h3{font-size:16.5px;margin-bottom:6px;}
.rel-card p{font-size:13.8px;color:var(--muted);margin:0;line-height:1.75;}

/* ============ CTA ============ */
.cta-band{
  margin-top:var(--sec-pad);
  background:var(--ink);
  border-radius:var(--r-card);
  padding:52px 44px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px;
}
.cta-band h2{color:#fff;margin-bottom:10px;font-size:26px;}
.cta-band p{color:rgba(255,255,255,.76);margin:0;max-width:640px;font-size:15.5px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-primary{background:var(--ink);color:#fff;}
.btn-primary:hover{background:var(--clay);color:#fff;transform:translateY(-1px);}
.btn-ghost{background:transparent;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;}
.btn-onink{background:var(--clay);color:#fff;}
.btn-onink:hover{background:#fff;color:var(--ink);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6);}
.btn-outline-light:hover{background:#fff;color:var(--ink);border-color:#fff;}
.btn:focus-visible{outline:2px solid var(--clay);outline-offset:2px;}
.btn[disabled]{opacity:.4;pointer-events:none;}

/* ============ 表单 ============ */
.search-form{display:flex;gap:10px;margin-top:24px;max-width:560px;}
.search-form input{
  flex:1;height:46px;padding:0 16px;border:1px solid var(--line);border-radius:var(--r-btn);
  background:var(--white);font-size:15px;color:var(--ink);
}
.search-form input::placeholder{color:var(--muted-2);}
.search-form input:focus{border-color:var(--clay);outline:none;box-shadow:0 0 0 3px rgba(217,102,61,.16);}

/* ============ 页脚 ============ */
.site-footer{margin-top:var(--sec-pad);background:var(--ink);color:rgba(255,255,255,.8);padding:56px 0 26px;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:32px;}
.footer-col h3{color:#fff;font-size:15px;letter-spacing:.6px;margin-bottom:16px;}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px;}
.footer-brand .brand-mark{background:var(--clay);}
.footer-col p{font-size:14px;line-height:1.85;color:rgba(255,255,255,.68);max-width:320px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{
  position:relative;color:rgba(255,255,255,.8);font-size:14.5px;padding-left:0;transition:padding-left .2s ease,color .2s ease;
}
.footer-col ul a::before{
  content:"";position:absolute;left:-12px;top:50%;width:6px;height:2px;background:var(--clay);
  transform:translateY(-50%);opacity:0;transition:opacity .2s ease;
}
.footer-col ul a:hover{color:#fff;padding-left:10px;}
.footer-col ul a:hover::before{opacity:1;left:-2px;}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid rgba(255,255,255,.14);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:rgba(255,255,255,.62);
}
.footer-bottom a{color:rgba(255,255,255,.8);}
.footer-bottom a:hover{color:var(--clay);}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .stat-grid{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .rel-grid{grid-template-columns:repeat(2,1fr);}
  .nav-link{padding:12px 9px;font-size:15px;}
}
@media (max-width:991px){
  :root{--sec-pad:56px;}
  .nav-main{display:none;}
  .nav-toggle{display:inline-flex;}
  h1{font-size:32px;}
  .page-hero h1{font-size:30px;}
  .split{grid-template-columns:1fr;gap:24px;}
  .split-media img{height:280px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:767px){
  :root{--sec-pad:44px;}
  body{font-size:16px;}
  h1{font-size:28px;}
  h2{font-size:24px;}
  .header-inner{height:64px;}
  .hero-inner{padding:32px 22px;}
  .page-hero h1{font-size:25px;}
  .grid-3{grid-template-columns:1fr;}
  .stat-grid{grid-template-columns:1fr 1fr;gap:16px;}
  .steps{grid-template-columns:1fr;}
  .rel-grid{grid-template-columns:1fr;}
  .cta-band{padding:36px 24px;}
  .search-form{flex-direction:column;}
  .search-form .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .page-hero h1{font-size:22px;}
  .stat-card .num{font-size:25px;}
  .hero-meta{gap:12px;font-size:13px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --ink:#1F2A44;
  --ink-soft:#2B3856;
  --accent:#D9663D;
  --accent-soft:#FBEDE7;
  --moss:#4E7C5B;
  --moss-soft:#EAF1EC;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E3DFD6;
  --line-strong:#CFC9BC;
  --text:#242B3D;
  --muted:#6E7488;
  --radius:10px;
  --radius-sm:8px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(15,27,45,.05), 0 6px 18px rgba(15,27,45,.045);
  --shadow-2:0 6px 16px rgba(15,27,45,.08), 0 18px 44px rgba(15,27,45,.10);
  --sec-pad:72px;
  --gap:24px;
  --maxw:1200px;
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",sans-serif;
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
h1,h2,h3,h4{color:var(--ink);font-weight:700;line-height:1.3;letter-spacing:.2px;}
ul,ol{list-style:none;}
a{color:var(--ink);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--accent);}
img{max-width:100%;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;border:0;background:none;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;}
::selection{background:var(--accent);color:#fff;}

/* ============ 容器 / 通用 ============ */
.container{width:100%;max-width:var(--maxw);margin:0 auto;padding:0 24px;}
.section{padding:var(--sec-pad) 0;}
.section--tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:36px;}
.section-head .eyebrow{
  display:inline-block;font-size:13px;letter-spacing:2px;text-transform:uppercase;
  color:var(--moss);font-weight:600;margin-bottom:12px;
}
.section-head h2{font-size:28px;margin-bottom:14px;}
.section-head p{font-size:16px;color:var(--muted);line-height:1.85;max-width:720px;}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;white-space:nowrap;
  transition:background-color .2s ease,color .2s ease,border-color .2s ease,transform .2s ease;
}
.btn-primary{background:var(--ink);color:#fff;border-color:var(--ink);}
.btn-primary:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:translateY(-2px);}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--ink);}
.btn-ghost:hover{background:var(--ink);color:#fff;}
.btn-light{background:#fff;color:var(--ink);border-color:#fff;}
.btn-light:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:translateY(-2px);}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.55);}
.btn-outline-light:hover{background:#fff;color:var(--ink);border-color:#fff;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.4;pointer-events:none;}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;line-height:1;
  padding:6px 12px;border-radius:var(--radius-pill);
}
.badge-moss{background:var(--moss-soft);color:#33553D;}
.badge-accent{background:var(--accent-soft);color:#9E4324;}
.badge-ink{background:#E9EBF2;color:var(--ink);}
.dot{width:7px;height:7px;border-radius:50%;background:var(--moss);display:inline-block;}
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:9px 16px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--line);
  font-size:14px;color:var(--ink);font-weight:500;
  transition:border-color .2s ease,color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.chip:hover{border-color:var(--ink);color:var(--accent);transform:translateY(-2px);box-shadow:var(--shadow-1);}
.chip i{color:var(--moss);font-size:13px;}

/* ============ 头部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(246,244,239,.94);
  backdrop-filter:blur(10px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--ink);}
.brand:hover{color:var(--ink);}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--ink);color:#fff;
  display:inline-flex;align-items:center;justify-content:center;
  font-size:16px;font-weight:700;letter-spacing:0;
}
.brand-text span{color:var(--accent);}
.nav-main{display:flex;align-items:center;}
.nav-list{display:flex;align-items:center;gap:4px;}
.nav-item{position:relative;}
.nav-link{
  display:inline-block;padding:0 14px;height:72px;line-height:72px;
  font-size:16px;font-weight:500;color:var(--ink);position:relative;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:20px;height:2px;
  background:var(--accent);transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease;
}
.nav-link:hover{color:var(--accent);}
.nav-link:hover::after{transform:scaleX(1);}
.nav-item.is-active .nav-link{font-weight:700;}
.nav-item.is-active .nav-link::after{transform:scaleX(1);height:3px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;align-items:center;justify-content:center;
  color:var(--ink);font-size:18px;
}
.nav-toggle:hover{border-color:var(--ink);color:var(--accent);}
.nav-backdrop{
  display:none;position:fixed;inset:0;background:rgba(15,27,45,.4);z-index:70;
}
body.nav-open .nav-backdrop{display:block;}
body.nav-open{overflow:hidden;}

/* Mega 面板 */
.mega-panel{
  position:absolute;top:calc(100% - 6px);left:50%;transform:translate(-50%,10px);
  width:720px;background:#fff;border:1px solid var(--line);
  border-radius:var(--radius);box-shadow:var(--shadow-2);
  padding:24px;opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .2s ease,transform .2s ease,visibility .2s;
}
.has-mega:hover .mega-panel,
.has-mega:focus-within .mega-panel{opacity:1;visibility:visible;pointer-events:auto;transform:translate(-50%,0);}
.mega-inner{display:grid;grid-template-columns:1fr 1fr;gap:28px;}
.mega-title{font-size:13px;letter-spacing:1.5px;color:var(--muted);font-weight:700;margin-bottom:14px;text-transform:uppercase;}
.mega-list li{margin-bottom:8px;}
.mega-link{display:flex;align-items:center;gap:9px;font-size:15px;color:var(--ink);padding:6px 0;}
.mega-link::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--moss);flex:none;}
.mega-link:hover{color:var(--accent);}
.mega-link:hover::before{background:var(--accent);}
.mega-post{display:block;padding:10px 12px;border-radius:var(--radius-sm);border:1px solid transparent;margin-bottom:6px;}
.mega-post strong{display:block;font-size:15px;font-weight:600;color:var(--ink);}
.mega-post span{font-size:13px;color:var(--muted);}
.mega-post:hover{background:var(--paper);border-color:var(--line);}
.mega-post:hover strong{color:var(--accent);}

/* ============ 页面 Hero ============ */
.page-hero{
  position:relative;background:var(--ink);overflow:hidden;
  padding:44px 0 56px;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(20,28,46,.94) 0%,rgba(20,28,46,.86) 42%,rgba(20,28,46,.55) 100%);
}
.page-hero-bg{position:absolute;inset:0;width:100%;height:100%;object-fit:cover;}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:rgba(255,255,255,.72);margin-bottom:26px;}
.breadcrumb a{color:rgba(255,255,255,.86);}
.breadcrumb a:hover{color:#fff;}
.breadcrumb span.sep{opacity:.55;}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:9px;
  font-size:13px;font-weight:600;letter-spacing:1px;
  color:#F3D9CE;background:rgba(217,102,61,.24);
  border:1px solid rgba(217,102,61,.45);
  padding:7px 14px;border-radius:var(--radius-pill);margin-bottom:20px;
}
.page-hero h1{
  color:#fff;font-size:40px;line-height:1.28;max-width:800px;margin-bottom:18px;
}
.page-hero p.lead{
  color:rgba(255,255,255,.82);font-size:17px;max-width:660px;line-height:1.85;margin-bottom:30px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-meta{
  display:flex;flex-wrap:wrap;gap:28px;margin-top:34px;
  padding-top:24px;border-top:1px solid rgba(255,255,255,.18);
}
.hero-meta div{color:rgba(255,255,255,.78);font-size:14px;}
.hero-meta strong{display:block;color:#fff;font-size:20px;font-weight:700;line-height:1.4;}

/* ============ 概览数据 ============ */
.stat-strip{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  box-shadow:var(--shadow-1);margin-top:-38px;position:relative;z-index:5;
  display:grid;grid-template-columns:repeat(4,1fr);
}
.stat-item{padding:26px 24px;border-right:1px solid var(--line);}
.stat-item:last-child{border-right:0;}
.stat-item .num{font-size:26px;font-weight:700;color:var(--ink);line-height:1.2;}
.stat-item .num em{font-style:normal;font-size:14px;color:var(--muted);font-weight:500;margin-left:4px;}
.stat-item .lbl{font-size:14px;color:var(--muted);margin-top:6px;}

/* ============ 分区索引 ============ */
.index-panel{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:28px;box-shadow:var(--shadow-1);
}
.index-panel h2{font-size:20px;margin-bottom:8px;}
.index-panel > p{font-size:15px;color:var(--muted);margin-bottom:20px;max-width:720px;}

/* ============ 时间轴 ============ */
.timeline{position:relative;}
.timeline::before{
  content:"";position:absolute;left:186px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,var(--line-strong),var(--line) 70%,rgba(227,223,214,0));
}
.tl-item{
  display:grid;grid-template-columns:156px 40px 1fr;align-items:start;
  margin-bottom:22px;
}
.tl-date{
  text-align:right;padding-top:24px;font-size:14px;color:var(--muted);
  font-weight:600;letter-spacing:.3px;
}
.tl-date span{display:block;font-size:12px;font-weight:500;color:#9AA0B0;margin-top:4px;letter-spacing:1px;}
.tl-axis{position:relative;height:100%;}
.tl-dot{
  position:absolute;left:50%;top:26px;transform:translateX(-50%);
  width:13px;height:13px;border-radius:50%;background:#fff;
  border:3px solid var(--accent);z-index:2;
}
.tl-item.is-new .tl-dot{background:var(--accent);box-shadow:0 0 0 4px var(--accent-soft);}
.tl-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 24px;box-shadow:var(--shadow-1);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.tl-card:hover{border-color:var(--ink);transform:translateY(-3px);box-shadow:var(--shadow-2);}
.tl-body{display:grid;grid-template-columns:1fr 132px;gap:24px;align-items:center;}
.tl-body.no-thumb{grid-template-columns:1fr;}
.tl-card h3{font-size:19px;margin-bottom:10px;}
.tl-card:hover h3{color:var(--accent);}
.tl-card p{font-size:15px;color:var(--muted);line-height:1.85;margin-bottom:16px;max-width:640px;}
.tl-tags{display:flex;flex-wrap:wrap;gap:8px;align-items:center;}
.tl-thumb{
  width:132px;height:92px;border-radius:var(--radius-sm);overflow:hidden;
  border:1px solid var(--line);background:#EDEAE3;
}
.tl-thumb img{width:100%;height:100%;object-fit:cover;}
.tl-more{font-size:14px;font-weight:600;color:var(--ink);margin-left:auto;}
.tl-more:hover{color:var(--accent);}

/* ============ 适用场景卡 ============ */
.card-grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap);}
.scene-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:0;overflow:hidden;box-shadow:var(--shadow-1);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
  display:flex;flex-direction:column;
}
.scene-card:hover{border-color:var(--ink);transform:translateY(-3px);box-shadow:var(--shadow-2);}
.scene-card .thumb{height:160px;background:#EDEAE3;border-bottom:1px solid var(--line);}
.scene-card .thumb img{width:100%;height:100%;object-fit:cover;}
.scene-card .body{padding:24px;flex:1;display:flex;flex-direction:column;}
.scene-card h3{font-size:19px;margin-bottom:10px;}
.scene-card p{font-size:15px;color:var(--muted);line-height:1.85;margin-bottom:16px;}
.scene-card .tags{margin-top:auto;display:flex;gap:8px;flex-wrap:wrap;}

/* ============ 核对流程 ============ */
.flow-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.flow-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 24px;position:relative;box-shadow:var(--shadow-1);
  transition:transform .2s ease,border-color .2s ease;
}
.flow-card:hover{transform:translateY(-3px);border-color:var(--ink);}
.flow-card .step{
  display:inline-flex;align-items:center;justify-content:center;
  width:36px;height:36px;border-radius:10px;background:var(--moss-soft);
  color:var(--moss);font-weight:700;font-size:15px;margin-bottom:16px;
}
.flow-card h3{font-size:17px;margin-bottom:8px;}
.flow-card p{font-size:15px;color:var(--muted);line-height:1.8;}

/* ============ 深色区块 ============ */
.dark-band{
  background:var(--ink);color:#fff;padding:var(--sec-pad) 0;
  position:relative;overflow:hidden;
}
.dark-band .container{position:relative;z-index:2;}
.dark-band h2{color:#fff;font-size:28px;margin-bottom:14px;}
.dark-band p{color:rgba(255,255,255,.8);font-size:16px;max-width:720px;}
.trust-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:28px;margin-top:38px;}
.trust-item{border-top:1px solid rgba(255,255,255,.2);padding-top:20px;}
.trust-item .k{font-size:22px;font-weight:700;color:#fff;line-height:1.3;margin-bottom:8px;}
.trust-item .v{font-size:15px;color:rgba(255,255,255,.75);line-height:1.8;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;}
.faq-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  margin-bottom:12px;overflow:hidden;
}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-size:20px;font-weight:600;color:var(--accent);flex:none;line-height:1;
}
.faq-item[open] summary::after{content:"−";}
.faq-item[open] summary{color:var(--accent);}
.faq-item[open]{border-color:var(--ink);}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--muted);line-height:1.85;}

/* ============ 相关分类 ============ */
.related-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.related-card{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius);
  padding:22px;display:block;box-shadow:var(--shadow-1);
  transition:border-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.related-card:hover{border-color:var(--ink);transform:translateY(-3px);box-shadow:var(--shadow-2);}
.related-card .idx{font-size:13px;color:var(--muted);font-weight:600;letter-spacing:1px;margin-bottom:10px;}
.related-card h3{font-size:17px;margin-bottom:8px;}
.related-card:hover h3{color:var(--accent);}
.related-card p{font-size:14px;color:var(--muted);line-height:1.8;}

/* ============ 底部 CTA ============ */
.cta-band{
  background:var(--ink);color:#fff;padding:64px 0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;
}
.cta-inner h2{color:#fff;font-size:28px;margin-bottom:12px;}
.cta-inner p{color:rgba(255,255,255,.8);font-size:16px;max-width:640px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ============ 搜索表单 ============ */
.search-form{display:flex;gap:10px;max-width:520px;}
.search-form input{
  height:46px;padding:0 16px;border-radius:var(--radius-sm);
  border:1px solid var(--line);background:#fff;width:100%;
  font-size:15px;color:var(--text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.search-form input::placeholder{color:#9AA0B0;}
.search-form input:focus{outline:none;border-color:var(--accent);box-shadow:0 0 0 3px rgba(217,102,61,.16);}
.search-form button{height:46px;padding:0 22px;border-radius:var(--radius-sm);background:var(--ink);color:#fff;font-weight:600;font-size:15px;}
.search-form button:hover{background:var(--accent);}

/* ============ 页脚 ============ */
.site-footer{background:var(--ink);color:rgba(255,255,255,.8);padding:60px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px;}
.footer-col h3{color:#fff;font-size:16px;margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:rgba(255,255,255,.8);font-size:15px;position:relative;padding-left:0;transition:padding-left .2s ease,color .2s ease;}
.footer-col ul li a:hover{color:#fff;padding-left:12px;}
.footer-col ul li a:hover::before{
  content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
  width:5px;height:5px;border-radius:50%;background:var(--accent);
}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-size:18px;font-weight:700;margin-bottom:14px;}
.footer-col p{font-size:15px;line-height:1.85;color:rgba(255,255,255,.72);max-width:360px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.16);padding:20px 0 24px;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:14px;color:rgba(255,255,255,.7);
}
.footer-bottom a{color:rgba(255,255,255,.88);}
.footer-bottom a:hover{color:#fff;}

/* ============ 响应式 ============ */
@media (max-width:1199px){
  .container{padding:0 20px;}
  .page-hero h1{font-size:34px;}
  .card-grid-3{grid-template-columns:repeat(2,1fr);}
  .flow-grid{grid-template-columns:repeat(2,1fr);}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .trust-grid{grid-template-columns:1fr;gap:20px;}
  .stat-strip{grid-template-columns:repeat(2,1fr);}
  .stat-item:nth-child(2){border-right:0;}
  .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
}
@media (max-width:991px){
  :root{--sec-pad:56px;}
  body{font-size:16px;}
  .nav-toggle{display:inline-flex;}
  .nav-main{
    position:fixed;top:0;right:0;height:100vh;width:min(330px,86vw);
    background:#fff;z-index:90;display:block;
    transform:translateX(100%);transition:transform .28s ease;
    padding:84px 22px 32px;overflow-y:auto;box-shadow:var(--shadow-2);
  }
  body.nav-open .nav-main{transform:translateX(0);}
  .nav-list{display:block;}
  .nav-item{border-bottom:1px solid var(--line);}
  .nav-link{display:block;height:auto;line-height:1.5;padding:16px 4px;font-size:16px;}
  .nav-link::after{display:none;}
  .nav-item.is-active .nav-link{color:var(--accent);}
  .mega-panel,.has-mega .mega-panel{
    position:static;transform:none;width:100%;opacity:1;visibility:visible;
    pointer-events:auto;box-shadow:none;border:0;padding:0 4px 16px;
  }
  .mega-inner{grid-template-columns:1fr;gap:16px;}
  .tl-item{grid-template-columns:1fr;padding-left:26px;position:relative;}
  .timeline::before{left:5px;}
  .tl-axis{display:none;}
  .tl-date{text-align:left;padding:0 0 10px;}
  .tl-body{grid-template-columns:1fr;}
  .tl-thumb{width:100%;height:150px;}
  .tl-more{margin-left:0;}
  .page-hero{padding:34px 0 46px;}
  .stat-strip{margin-top:-28px;}
}
@media (max-width:767px){
  :root{--sec-pad:44px;--gap:18px;}
  .container{padding:0 16px;}
  .page-hero h1{font-size:28px;}
  .page-hero p.lead{font-size:16px;}
  .section-head h2,.dark-band h2,.cta-inner h2{font-size:23px;}
  .card-grid-3{grid-template-columns:1fr;}
  .flow-grid{grid-template-columns:1fr;}
  .related-grid{grid-template-columns:1fr;}
  .stat-strip{grid-template-columns:1fr;}
  .stat-item{border-right:0;border-bottom:1px solid var(--line);}
  .stat-item:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr;}
  .search-form{flex-direction:column;}
  .search-form input,.search-form button{width:100%;}
  .hero-actions .btn{width:100%;justify-content:center;}
  .cta-actions .btn{width:100%;justify-content:center;}
  .hero-meta{gap:18px;}
  .timeline::before{display:none;}
  .tl-item{padding-left:0;}
}

/* roulang page: category4 */
:root{
  --ink:#1F2A44;
  --ink-soft:#3A4763;
  --orange:#D9663D;
  --green:#4E7C5B;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E3DFD6;
  --placeholder:#EDEAE3;
  --text:#22262E;
  --muted:#6B7280;
  --radius-card:10px;
  --radius-btn:8px;
  --radius-pill:999px;
  --shadow-1:0 1px 2px rgba(15,27,45,.04), 0 2px 10px rgba(15,27,45,.04);
  --shadow-2:0 10px 24px rgba(15,27,45,.08), 0 2px 6px rgba(15,27,45,.06);
  --gap:24px;
  --section-pad:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--text);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
}
img{max-width:100%;display:block;border:1px solid var(--line);border-radius:var(--radius-card);object-fit:cover;background:var(--placeholder)}
a{color:var(--ink);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
a:hover{color:var(--orange)}
h1,h2,h3,h4{margin:0;color:var(--ink);font-weight:700;line-height:1.3;letter-spacing:.2px}
h1{font-size:40px}
h2{font-size:28px}
h3{font-size:20px}
p{margin:0 0 1.1em;max-width:720px}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input{font-family:inherit}
:focus-visible{outline:2px solid var(--orange);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--section-pad) 0}
.section--tight{padding:44px 0}
.section-head{max-width:760px;margin-bottom:32px}
.section-kicker{display:inline-block;font-size:13px;letter-spacing:.14em;text-transform:uppercase;color:var(--orange);font-weight:700;margin-bottom:10px}
.section-desc{color:var(--muted);font-size:15px;max-width:700px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.92);
  backdrop-filter:saturate(140%) blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:10px;font-weight:700;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:34px;height:34px;border-radius:9px;background:var(--ink);color:#fff;
  display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:700;letter-spacing:.5px;
}
.brand-text{font-size:19px;letter-spacing:.3px}
.brand-text span{color:var(--orange)}
.nav-main{display:flex;align-items:center}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-item{position:relative}
.nav-link{
  display:block;padding:0 12px;line-height:72px;font-size:16px;font-weight:500;color:var(--ink-soft);
  position:relative;white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:18px;height:2px;background:var(--orange);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--orange)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-item.is-active .nav-link{color:var(--ink);font-weight:700}
.nav-item.is-active .nav-link::after{transform:scaleX(1);height:3px}
.mega-panel{
  position:absolute;top:100%;left:50%;transform:translateX(-50%) translateY(6px);
  width:720px;background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:24px;opacity:0;visibility:hidden;pointer-events:none;
  transition:opacity .2s ease,transform .2s ease,visibility .2s ease;
}
.has-mega:hover .mega-panel,.has-mega:focus-within .mega-panel{opacity:1;visibility:visible;pointer-events:auto;transform:translateX(-50%) translateY(0)}
.mega-inner{display:grid;grid-template-columns:1fr 1fr;gap:24px}
.mega-title{font-size:13px;font-weight:700;color:var(--muted);letter-spacing:.1em;margin-bottom:10px}
.mega-list li{margin-bottom:4px}
.mega-link{display:flex;align-items:center;gap:8px;font-size:15px;color:var(--ink-soft);padding:6px 0}
.mega-link::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--green);flex:0 0 auto}
.mega-link:hover{color:var(--orange)}
.mega-post{display:block;border:1px solid var(--line);border-radius:var(--radius-btn);padding:10px 12px;margin-bottom:10px}
.mega-post strong{display:block;font-size:15px;color:var(--ink);font-weight:600;line-height:1.5}
.mega-post span{font-size:13px;color:var(--muted)}
.mega-post:hover{border-color:var(--ink);box-shadow:var(--shadow-1)}
.mega-post:hover strong{color:var(--orange)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--radius-btn);border:1px solid var(--line);
  background:var(--card);color:var(--ink);cursor:pointer;font-size:16px;
}
.nav-toggle:hover{border-color:var(--ink)}
.nav-overlay{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);font-size:15px;font-weight:600;
  border:1px solid transparent;cursor:pointer;transition:all .2s ease;line-height:1.4;
}
.btn-primary{background:var(--ink);color:#fff}
.btn-primary:hover{background:var(--orange);color:#fff;transform:translateY(-1px)}
.btn-ghost{background:transparent;border-color:var(--ink);color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff}
.btn-light{background:#fff;color:var(--ink)}
.btn-light:hover{background:var(--orange);color:#fff}
.btn:disabled,.btn.is-disabled{opacity:.4;cursor:not-allowed}
.link-arrow{display:inline-flex;align-items:center;gap:6px;font-size:15px;font-weight:600;color:var(--orange)}
.link-arrow i{transition:transform .2s ease}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- badges / chips ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;font-size:13px;line-height:1;
  padding:6px 12px;border-radius:var(--radius-pill);font-weight:600;
}
.badge-green{background:#EDF3EE;color:#2F5B3D}
.badge-orange{background:#FBEDE7;color:#9E3F1F}
.badge-ink{background:#EAECF2;color:#25314F}
.chips{display:flex;flex-wrap:wrap;gap:8px}
.chip{
  font-size:13px;padding:6px 12px;border-radius:var(--radius-pill);
  background:#fff;border:1px solid var(--line);color:var(--ink-soft);font-weight:500;
}
.chip:hover{border-color:var(--orange);color:var(--orange)}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line);background:var(--card)}
.page-hero-media{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.92}
.page-hero-mask{position:absolute;inset:0;background:linear-gradient(100deg,rgba(31,42,68,.94) 0%,rgba(31,42,68,.78) 46%,rgba(31,42,68,.30) 100%)}
.page-hero-inner{position:relative;min-height:300px;padding:48px 0;display:flex;flex-direction:column;justify-content:center;max-width:640px}
.page-hero .crumb{color:rgba(255,255,255,.72)}
.crumb{font-size:13px;display:flex;flex-wrap:wrap;align-items:center;gap:8px}
.crumb a{color:inherit}
.crumb a:hover{color:#fff}
.crumb i{font-size:10px;opacity:.7}
.page-hero h1{color:#fff;margin:14px 0 12px;max-width:640px}
.page-hero p{color:rgba(255,255,255,.86);font-size:17px;max-width:560px;line-height:1.8}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.hero-tags span{
  font-size:13px;padding:6px 12px;border-radius:var(--radius-pill);
  background:rgba(255,255,255,.14);color:#fff;border:1px solid rgba(255,255,255,.26);font-weight:500;
}
.crumb-band{padding:18px 0 0}

/* ---------- overview strip ---------- */
.overview{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);margin-top:8px}
.overview-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:20px;box-shadow:var(--shadow-1);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.overview-item:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--ink)}
.overview-num{font-size:26px;font-weight:700;color:var(--ink);line-height:1.2}
.overview-num span{font-size:14px;color:var(--orange);margin-left:4px;font-weight:600}
.overview-label{font-size:14px;color:var(--muted);margin-top:6px}

/* ---------- alternating rows ---------- */
.alt-rows{display:flex;flex-direction:column;gap:32px}
.alt-row{
  display:grid;grid-template-columns:5fr 7fr;gap:32px;align-items:center;
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:var(--gap);box-shadow:var(--shadow-1);transition:transform .22s ease,box-shadow .22s ease,border-color .22s ease;
}
.alt-row.reverse .alt-media{order:2}
.alt-row:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--ink)}
.alt-media{position:relative;border-radius:var(--radius-card);overflow:hidden}
.alt-media img{width:100%;height:260px;border-radius:var(--radius-card)}
.alt-media .alt-index{
  position:absolute;left:14px;top:14px;background:rgba(31,42,68,.9);color:#fff;
  font-size:13px;font-weight:700;padding:6px 12px;border-radius:var(--radius-pill);letter-spacing:.06em;
}
.alt-body h3{font-size:22px;margin-bottom:10px}
.alt-body p{color:var(--muted);font-size:15.5px}
.alt-points{margin:16px 0 18px;display:grid;gap:8px}
.alt-points li{position:relative;padding-left:20px;font-size:15px;color:var(--ink-soft)}
.alt-points li::before{content:"";position:absolute;left:0;top:11px;width:8px;height:8px;border-radius:3px;background:var(--green)}
.alt-foot{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;border-top:1px dashed var(--line);padding-top:16px}

/* ---------- process ---------- */
.process{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap)}
.step{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;box-shadow:var(--shadow-1);position:relative;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.step:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--ink)}
.step-no{font-size:13px;font-weight:700;color:var(--orange);letter-spacing:.14em}
.step h3{font-size:18px;margin:10px 0 8px}
.step p{font-size:14.5px;color:var(--muted)}

/* ---------- faq ---------- */
.faq-list{display:grid;gap:12px}
.faq-item{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item[open]{border-color:var(--ink);box-shadow:var(--shadow-1)}
.faq-item summary{
  list-style:none;cursor:pointer;padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);
  display:flex;align-items:center;justify-content:space-between;gap:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";font-size:20px;font-weight:400;color:var(--orange);line-height:1}
.faq-item[open] summary::after{content:"−"}
.faq-item summary:hover{color:var(--orange)}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--muted);line-height:1.85;max-width:760px}

/* ---------- cta band ---------- */
.cta-band{background:var(--ink);border-radius:14px;padding:48px 40px;color:#fff;display:grid;grid-template-columns:1.1fr .9fr;gap:32px;align-items:center}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.8);font-size:15.5px;max-width:520px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:22px}
.subscribe{display:flex;gap:10px;background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-card);padding:18px}
.subscribe .field{flex:1}
.subscribe label{display:block;font-size:13px;color:rgba(255,255,255,.75);margin-bottom:8px}
.subscribe input{
  width:100%;height:46px;border-radius:var(--radius-btn);border:1px solid rgba(255,255,255,.28);
  background:rgba(255,255,255,.94);color:var(--ink);padding:0 14px;font-size:15px;
}
.subscribe input:focus{outline:none;border-color:var(--orange);box-shadow:0 0 0 2px rgba(217,102,61,.45)}
.subscribe .hint{font-size:13px;color:rgba(255,255,255,.62);margin-top:10px}

/* ---------- related ---------- */
.related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.related-card{background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;display:flex;flex-direction:column}
.related-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--ink)}
.related-card img{height:170px;width:100%;border:none;border-bottom:1px solid var(--line);border-radius:0}
.related-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.related-body h3{font-size:18px}
.related-body p{font-size:14.5px;color:var(--muted);flex:1}
.related-card:hover h3{color:var(--orange)}

/* ---------- footer ---------- */
.site-footer{background:var(--ink);color:rgba(255,255,255,.8);margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:32px;padding:56px 0 32px}
.footer-brand{display:flex;align-items:center;gap:10px;color:#fff;font-weight:700;font-size:18px;margin-bottom:14px}
.footer-brand .brand-mark{background:var(--orange)}
.footer-col p{color:rgba(255,255,255,.72);font-size:14.5px;max-width:340px}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:14px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:10px}
.footer-col ul a{color:rgba(255,255,255,.8);font-size:14.5px;position:relative;padding-left:0;transition:all .2s ease}
.footer-col ul a:hover{color:#fff;padding-left:12px}
.footer-col ul a:hover::before{content:"";position:absolute;left:0;top:50%;width:5px;height:5px;border-radius:50%;background:var(--orange);transform:translateY(-50%)}
.footer-bottom{border-top:1px solid rgba(255,255,255,.14);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;font-size:13.5px;color:rgba(255,255,255,.66)}
.footer-bottom a{color:rgba(255,255,255,.86)}
.footer-bottom a:hover{color:var(--orange)}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  h1{font-size:34px}
  h2{font-size:25px}
  .overview{grid-template-columns:repeat(2,1fr)}
  .process{grid-template-columns:repeat(2,1fr)}
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .alt-row{grid-template-columns:1fr;gap:20px}
  .alt-row.reverse .alt-media{order:0}
  .cta-band{grid-template-columns:1fr;padding:40px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
  .mega-panel{width:600px}
}
@media (max-width:991px){
  :root{--section-pad:56px}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center}
  .nav-main{
    position:fixed;top:0;right:0;height:100vh;width:min(340px,86vw);
    background:var(--card);border-left:1px solid var(--line);box-shadow:var(--shadow-2);
    transform:translateX(102%);transition:transform .26s ease;z-index:80;
    overflow-y:auto;padding:88px 20px 32px;display:block;
  }
  .nav-main.is-open{transform:translateX(0)}
  .nav-list{flex-direction:column;align-items:stretch;gap:2px}
  .nav-link{line-height:1.5;padding:14px 12px;border-bottom:1px solid var(--line);font-size:16px}
  .nav-link::after{display:none}
  .nav-item.is-active .nav-link{background:#F2EFE8;border-radius:var(--radius-btn);color:var(--ink)}
  .mega-panel{
    position:static;transform:none;width:100%;opacity:1;visibility:visible;pointer-events:auto;
    box-shadow:none;border:1px dashed var(--line);margin:8px 0 12px;padding:16px;
  }
  .mega-inner{grid-template-columns:1fr;gap:16px}
  .nav-overlay{display:block;position:fixed;inset:0;background:rgba(15,27,45,.4);opacity:0;visibility:hidden;transition:.24s ease;z-index:70}
  .nav-overlay.is-open{opacity:1;visibility:visible}
  .overview{grid-template-columns:1fr 1fr}
  .related-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  :root{--section-pad:44px;--gap:18px}
  body{font-size:16px}
  h1{font-size:29px}
  h2{font-size:23px}
  h3{font-size:19px}
  .container{padding:0 18px}
  .header-inner{height:64px}
  .page-hero-inner{min-height:250px;padding:36px 0}
  .page-hero p{font-size:15.5px}
  .overview,.process,.related-grid{grid-template-columns:1fr}
  .alt-media img{height:200px}
  .alt-body h3{font-size:19px}
  .footer-grid{grid-template-columns:1fr;padding:40px 0 24px}
  .cta-band{padding:32px 20px}
  .subscribe{flex-direction:column}
  .btn{width:100%}
  .alt-foot .btn,.cta-actions .btn{width:100%}
  .faq-item summary{padding:16px 16px;font-size:15.5px}
  .faq-body{padding:0 16px 18px}
}
@media (max-width:520px){
  h1{font-size:26px}
  .brand-text{font-size:17px}
  .section-head{margin-bottom:24px}
}

/* roulang page: category5 */
:root{
  --ink:#1F2A44;
  --ink-soft:#42506e;
  --accent:#D9663D;
  --moss:#4E7C5B;
  --paper:#F6F4EF;
  --card:#FFFFFF;
  --line:#E3DFD6;
  --muted:#6E7483;
  --placeholder:#EDEAE3;
  --radius-card:10px;
  --radius-ctl:8px;
  --shadow-1:0 1px 2px rgba(15,27,45,.06),0 6px 18px rgba(15,27,45,.04);
  --shadow-2:0 10px 28px rgba(15,27,45,.10);
  --space-block:72px;
  --space-block-m:44px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--paper);
  color:var(--ink);
  font-family:"Noto Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Helvetica,Arial,sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4{font-weight:700;line-height:1.3;color:var(--ink);margin:0 0 .6em}
h1{font-size:40px;letter-spacing:-.5px}
h2{font-size:28px}
h3{font-size:20px}
p{margin:0 0 1.1em;max-width:720px}
img{max-width:100%;display:block;border:0}
a{color:var(--ink);text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease}
a:hover{color:var(--accent)}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible{outline:2px solid var(--accent);outline-offset:2px}
ul,ol{margin:0;padding:0;list-style:none}
button{font:inherit;cursor:pointer}
hr{border:0;border-top:1px solid var(--line);margin:0}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:var(--space-block) 0}
.section-tight{padding:56px 0}
.section-alt{background:#FBF9F5;border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:36px}
.section-head h2{font-size:28px;margin-bottom:14px}
.section-head p{color:var(--muted);font-size:16px;margin-bottom:0}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--moss);text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;background:var(--accent);display:inline-block}

/* ============ Header / Nav ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(246,244,239,.94);
  backdrop-filter:saturate(160%) blur(8px);
  border-bottom:1px solid var(--line);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:72px}
.brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;font-size:19px;color:var(--ink)}
.brand:hover{color:var(--ink)}
.brand-mark{
  width:34px;height:34px;border-radius:9px;
  background:var(--ink);color:#fff;display:inline-flex;align-items:center;justify-content:center;
  font-size:17px;font-weight:700;letter-spacing:.5px;
}
.brand-text span{color:var(--accent)}
.nav-main{display:flex;align-items:center}
.nav-list{display:flex;align-items:center;gap:4px}
.nav-item{position:relative}
.nav-link{
  display:inline-block;padding:10px 12px;font-size:15px;font-weight:500;color:var(--ink-soft);
  border-radius:var(--radius-ctl);position:relative;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:4px;height:2px;background:var(--accent);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.nav-link:hover{color:var(--ink)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-item.is-active .nav-link{color:var(--ink);font-weight:600}
.nav-item.is-active .nav-link::after{transform:scaleX(1);height:3px;border-radius:2px}

/* Mega panel */
.mega-panel{
  position:absolute;top:calc(100% + 12px);right:-80px;width:720px;
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-2);padding:24px;
  opacity:0;visibility:hidden;transform:translateY(-6px);
  transition:opacity .18s ease,transform .18s ease,visibility .18s ease;
}
.nav-item.has-mega:hover .mega-panel,
.nav-item.has-mega:focus-within .mega-panel{opacity:1;visibility:visible;transform:translateY(0)}
.mega-inner{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.mega-title{font-size:13px;font-weight:600;letter-spacing:.06em;color:var(--muted);margin-bottom:12px}
.mega-list li{margin-bottom:2px}
.mega-link{display:flex;align-items:center;gap:8px;padding:7px 10px;border-radius:var(--radius-ctl);font-size:15px;color:var(--ink-soft)}
.mega-link::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--moss);flex:none}
.mega-link:hover{background:var(--paper);color:var(--accent)}
.mega-post{display:block;padding:10px 12px;border-radius:var(--radius-ctl);border:1px solid var(--line);margin-bottom:10px}
.mega-post strong{display:block;font-size:15px;font-weight:600}
.mega-post span{font-size:13px;color:var(--muted)}
.mega-post:hover{border-color:var(--ink);transform:translateY(-2px)}
.nav-toggle{
  display:none;width:44px;height:44px;border:1px solid var(--line);background:#fff;border-radius:var(--radius-ctl);
  align-items:center;justify-content:center;color:var(--ink);
}
.nav-drawer{
  position:fixed;top:0;right:0;height:100%;width:300px;max-width:88vw;background:#fff;z-index:90;
  transform:translateX(102%);transition:transform .26s ease;padding:22px 20px;overflow-y:auto;
  box-shadow:-14px 0 34px rgba(15,27,45,.14);
}
.nav-drawer.is-open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:40px;height:40px;border:1px solid var(--line);background:#fff;border-radius:var(--radius-ctl);color:var(--ink)}
.drawer-list li{border-bottom:1px solid var(--line)}
.drawer-list a{display:block;padding:14px 2px;font-size:16px;color:var(--ink)}
.drawer-list a.is-active{color:var(--accent);font-weight:600}
.drawer-mask{
  position:fixed;inset:0;background:rgba(15,27,45,.4);z-index:80;opacity:0;visibility:hidden;transition:.24s ease;
}
.drawer-mask.is-open{opacity:1;visibility:visible}

/* ============ Breadcrumb ============ */
.crumb-bar{background:#FBF9F5;border-bottom:1px solid var(--line)}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--muted);padding:14px 0}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:#C3BDAD}
.crumb strong{color:var(--ink);font-weight:600}

/* ============ Hero ============ */
.cat-hero{
  position:relative;min-height:220px;display:flex;align-items:center;
  background-image:linear-gradient(96deg,rgba(20,29,48,.92) 0%,rgba(20,29,48,.72) 46%,rgba(20,29,48,.30) 100%),url("/assets/images/backpic/back-1.webp");
  background-size:cover;background-position:center;color:#fff;border-bottom:1px solid var(--line);
}
.cat-hero .container{padding-top:40px;padding-bottom:40px;position:relative;z-index:2}
.cat-hero h1{color:#fff;font-size:38px;margin-bottom:14px;max-width:820px}
.cat-hero p{color:rgba(255,255,255,.86);font-size:17px;max-width:660px;margin-bottom:24px}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:26px}
.hero-tag{
  font-size:13px;padding:5px 12px;border-radius:999px;
  background:rgba(255,255,255,.14);border:1px solid rgba(255,255,255,.28);color:#fff;
}
.btn-row{display:flex;flex-wrap:wrap;gap:14px}

/* ============ Buttons ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--radius-ctl);
  font-size:15px;font-weight:600;border:1px solid transparent;transition:all .2s ease;white-space:nowrap;
}
.btn-primary{background:var(--ink);color:#fff;border-color:var(--ink)}
.btn-primary:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:translateY(-2px)}
.btn-ghost{background:#fff;color:var(--ink);border-color:var(--ink)}
.btn-ghost:hover{background:var(--ink);color:#fff;transform:translateY(-2px)}
.btn-light{background:#fff;color:var(--ink);border-color:#fff}
.btn-light:hover{background:var(--accent);border-color:var(--accent);color:#fff;transform:translateY(-2px)}
.btn-outline-light{background:transparent;color:#fff;border-color:rgba(255,255,255,.6)}
.btn-outline-light:hover{background:#fff;color:var(--ink);border-color:#fff;transform:translateY(-2px)}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}

/* ============ Badges / Tags ============ */
.badge{display:inline-flex;align-items:center;gap:6px;font-size:13px;padding:4px 11px;border-radius:999px;font-weight:500}
.badge-moss{background:rgba(78,124,91,.12);color:#3B6547}
.badge-clay{background:rgba(217,102,61,.12);color:#B44E2A}
.badge-ink{background:rgba(31,42,68,.09);color:var(--ink)}
.tag{display:inline-block;font-size:13px;padding:3px 10px;border:1px solid var(--line);border-radius:999px;color:var(--muted);background:#FBF9F5}

/* ============ Cards ============ */
.card{
  background:var(--card);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;height:100%;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--ink)}
.card h3{font-size:20px;margin-bottom:10px}
.card p{color:var(--muted);font-size:15px;margin-bottom:14px}
.card .icon-box{
  width:44px;height:44px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;
  background:rgba(31,42,68,.06);color:var(--ink);font-size:18px;margin-bottom:16px;
}
.grid-gap{row-gap:24px}
.grid-gap-tight{row-gap:18px}

/* 说明区 */
.overview{display:grid;grid-template-columns:1.6fr 1fr;gap:32px;align-items:start}
.overview-text p{color:var(--ink-soft);font-size:16px}
.fact-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:26px;box-shadow:var(--shadow-1)}
.fact-card h3{font-size:17px;margin-bottom:16px}
.fact-list li{display:flex;justify-content:space-between;gap:12px;padding:11px 0;border-bottom:1px dashed var(--line);font-size:15px;color:var(--ink-soft)}
.fact-list li:last-child{border-bottom:0}
.fact-list strong{color:var(--ink);font-weight:700}
.fact-num{font-size:26px;font-weight:700;color:var(--ink);line-height:1.2}

/* 折叠条目 */
.accordion-list{display:grid;gap:12px;max-width:960px}
.acc-item{
  background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease;
}
.acc-item[open]{border-color:var(--ink);box-shadow:var(--shadow-1)}
.acc-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:16px;
  padding:20px 24px;font-size:17px;font-weight:600;color:var(--ink);
}
.acc-item summary::-webkit-details-marker{display:none}
.acc-item summary::after{
  content:"+";margin-left:auto;font-size:20px;font-weight:400;color:var(--accent);flex:none;
}
.acc-item[open] summary::after{content:"−"}
.acc-item summary:hover{color:var(--accent)}
.acc-index{
  flex:none;width:30px;height:30px;border-radius:8px;background:var(--paper);border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:var(--ink);
}
.acc-body{padding:0 24px 24px 70px;color:var(--muted);font-size:15px}
.acc-body p{max-width:680px}
.acc-points{display:grid;gap:8px;margin-top:6px}
.acc-points li{position:relative;padding-left:18px;font-size:15px;color:var(--ink-soft)}
.acc-points li::before{content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--moss)}
.acc-meta{display:flex;flex-wrap:wrap;gap:8px;padding:0 24px 20px 70px}

/* 场景图文 */
.scene{display:grid;grid-template-columns:1fr 1fr;gap:24px;align-items:stretch}
.scene-media{border-radius:var(--radius-card);overflow:hidden;border:1px solid var(--line);background:var(--placeholder);min-height:260px}
.scene-media img{width:100%;height:100%;object-fit:cover}
.scene-body{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:28px;display:flex;flex-direction:column;justify-content:center}
.scene-body h3{font-size:22px;margin-bottom:12px}
.scene-body p{color:var(--muted);font-size:15px}
.mini-list li{position:relative;padding:7px 0 7px 20px;font-size:15px;color:var(--ink-soft)}
.mini-list li::before{content:"";position:absolute;left:0;top:1.05em;width:8px;height:8px;border-radius:50%;border:2px solid var(--accent)}

/* 流程 */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;counter-reset:step}
.flow-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;position:relative}
.flow-item::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  display:block;font-size:13px;font-weight:700;letter-spacing:.08em;color:var(--accent);margin-bottom:12px;
}
.flow-item h3{font-size:18px;margin-bottom:8px}
.flow-item p{color:var(--muted);font-size:14.5px;margin-bottom:0}

/* FAQ */
.faq-list{display:grid;gap:12px;max-width:900px}
.faq-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;gap:12px;
  padding:18px 22px;font-size:16px;font-weight:600;color:var(--ink);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:"+";margin-left:auto;color:var(--accent);font-size:19px;flex:none}
.faq-item[open] summary::after{content:"−"}
.faq-item[open]{border-color:var(--ink)}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--muted)}
.faq-body p{max-width:720px;margin-bottom:.8em}

/* CTA */
.cta-band{background:var(--ink);color:#fff;border-radius:var(--radius-card);padding:48px 40px;display:grid;grid-template-columns:1.4fr 1fr;gap:32px;align-items:center}
.cta-band h2{color:#fff;font-size:28px;margin-bottom:12px}
.cta-band p{color:rgba(255,255,255,.78);font-size:15.5px;margin-bottom:0;max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;justify-content:flex-end}

/* 相关分类 */
.related-card{background:#fff;border:1px solid var(--line);border-radius:var(--radius-card);overflow:hidden;display:block;height:100%;transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.related-card:hover{transform:translateY(-3px);border-color:var(--ink);box-shadow:var(--shadow-2)}
.related-thumb{height:140px;background:var(--placeholder);overflow:hidden}
.related-thumb img{width:100%;height:100%;object-fit:cover}
.related-body{padding:20px}
.related-body h3{font-size:17px;margin-bottom:8px}
.related-body p{font-size:14.5px;color:var(--muted);margin-bottom:12px}
.link-more{font-size:14.5px;font-weight:600;color:var(--accent);display:inline-flex;align-items:center;gap:6px}

/* ============ Footer ============ */
.site-footer{background:var(--ink);color:#fff;margin-top:0;padding-top:60px}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:36px;padding-bottom:44px}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;margin-bottom:14px}
.footer-brand .brand-mark{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.22)}
.footer-col p{color:rgba(255,255,255,.72);font-size:14.5px;max-width:340px;margin:0}
.footer-col h3{color:#fff;font-size:15px;margin-bottom:16px;letter-spacing:.02em}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{color:rgba(255,255,255,.8);font-size:14.5px;position:relative;padding-left:0;transition:padding .2s ease,color .2s ease}
.footer-col ul a::before{content:"";position:absolute;left:-12px;top:.6em;width:6px;height:6px;background:var(--accent);border-radius:1px;opacity:0;transition:opacity .2s ease}
.footer-col ul a:hover{color:#fff;padding-left:4px}
.footer-col ul a:hover::before{opacity:1}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.14);display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  padding:20px 0;font-size:14px;color:rgba(255,255,255,.68);
}
.footer-bottom a{color:rgba(255,255,255,.86)}
.footer-bottom a:hover{color:#fff}

/* ============ Responsive ============ */
@media (max-width:1199px){
  h1{font-size:34px}
  .cat-hero h1{font-size:32px}
  .overview{grid-template-columns:1.3fr 1fr}
  .flow{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
}
@media (max-width:991px){
  :root{--space-block:56px}
  .nav-main{display:none}
  .nav-toggle{display:inline-flex}
  .header-inner{min-height:64px}
  .cat-hero{min-height:210px}
  .cat-hero h1{font-size:28px}
  .scene{grid-template-columns:1fr}
  .scene-media{min-height:220px;order:-1}
  .cta-band{grid-template-columns:1fr;padding:36px 28px}
  .cta-actions{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:767px){
  :root{--space-block:44px}
  body{font-size:16px;line-height:1.8}
  h1{font-size:27px}
  h2{font-size:23px}
  h3{font-size:18px}
  .container{padding:0 18px}
  .cat-hero{min-height:auto;background-image:linear-gradient(180deg,rgba(20,29,48,.94) 0%,rgba(20,29,48,.78) 100%),url("/assets/images/backpic/back-1.webp")}
  .cat-hero .container{padding-top:32px;padding-bottom:32px}
  .cat-hero h1{font-size:24px}
  .cat-hero p{font-size:15px}
  .acc-item summary{padding:16px 18px;font-size:16px;gap:12px}
  .acc-body{padding:0 18px 20px 18px}
  .acc-meta{padding:0 18px 18px 18px}
  .flow{grid-template-columns:1fr}
  .fact-card,.card,.scene-body{padding:20px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .btn{width:100%}
  .btn-row .btn{width:100%}
  .section-head{margin-bottom:26px}
}
@media (max-width:420px){
  .cat-hero h1{font-size:22px}
  .brand-text{font-size:17px}
}