/* roulang page: index */
:root {
  --primary: #0E4F43;
  --primary-deep: #0A332B;
  --primary-greenblack: #082A22;
  --sage-tint: #DCE9E2;
  --accent: #B7522B;
  --accent-hover: #98431F;
  --bg-warm: #F6F2EA;
  --panel-white: #ffffff;
  --dark-block: #0C352B;
  --text-dark: #1B201D;
  --text-medium: #5E6F65;
  --text-light: #A7B5AD;
  --border-green: rgba(14, 79, 67, 0.14);
  --border-light: rgba(255,255,255,.16);
  --border-line: rgba(14,79,67,.18);
  --radius-sm: 4px;
  --radius-md: 8px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 2px rgba(8,42,34,.04), 0 8px 24px rgba(8,42,34,.06);
  --shadow-md: 0 10px 30px rgba(8,42,34,.08), 0 4px 10px rgba(8,42,34,.04);
  --shadow-hover: 0 16px 40px rgba(8,42,34,.13), 0 8px 14px rgba(8,42,34,.07);
  --transition-fast: .2s ease;
  --transition-base: .3s ease;
  --font-serif: "Playfair Display", "Times New Roman", Georgia, serif;
  --font-sans: "PingFang SC","Microsoft YaHei","Source Han Sans CN","Noto Sans SC",sans-serif;
}
* ,*::before,*::after {box-sizing:border-box;}
html {scroll-behavior:smooth;}
body {
  margin:0; padding:0;
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-dark);
  background: var(--bg-warm);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img {max-width:100%; height:auto; display:block;}
a {color:var(--primary); text-decoration:none; transition:color .25s ease;}
a:hover{color:var(--accent);}
p {margin:0 0 1rem;}
ul {margin:0; padding:0; list-style:none;}
button,input,select,textarea {font-family:inherit;}
.btn {border-radius:var(--radius-sm); font-weight:600;}
.btn:focus-visible, a:focus-visible, .form-control:focus-visible {
  outline:2px solid var(--accent);
  outline-offset:3px;
}
/* container */
.container-xl-large {max-width:1280px; margin:0 auto; padding-left:32px; padding-right:32px;}
.section-padding {padding:96px 0;}
.h-sec {max-width:1280px; margin:0 auto; padding:0 32px;}
/* head small */
.eyebrow-label {
  display:inline-flex; align-items:center; gap:10px;
  font-size:13px; letter-spacing:.08em; margin-bottom:16px;
  color:var(--primary); font-weight:600;
}
.eyebrow-label::before {content:""; width:28px;height:2px;background:var(--accent); display:inline-block;}
/* section title */
.sec-title {font-size:36px;font-weight:800;line-height:1.3;margin-bottom:14px;color:var(--text-dark);letter-spacing:.01em;}
.sec-subtitle {font-size:15px; max-width:760px; color:var(--text-medium);}
.m-0{margin:0;}

/* skip links etc */
/* ===== header ===== */
.site-header {
  position: fixed;
  top:0; left:0; right:0;
  z-index:5000;
  height:72px;
  background: rgba(246,242,234,.84);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom:1px solid transparent;
  transition:background .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  background: rgba(246,242,234,.94);
  border-bottom-color:var(--border-green);
  box-shadow: 0 6px 20px rgba(8,42,34,.05);
}
.header-inner {
  max-width:1280px; margin:0 auto; padding:0 32px;
  display:flex; align-items:center; justify-content:space-between;
  height:72px; gap:20px;
}
.brand-logo {
  display:inline-flex;align-items:center;gap:10px;
  font-size:20px;font-weight:800;color:var(--primary);
  letter-spacing:.01em; position:relative; line-height:1.2;
}
.brand-badge {
  width:38px;height:38px;border-radius:8px;
  background: var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
  color:#fff;font-weight:600;font-size:22px;
}
.brand-logo .logo-main {color:var(--primary);}
.brand-logo .logo-sub {color:var(--text-dark); font-weight:600;}
.brand-logo:hover .logo-main {color:var(--accent);}
.nav-list {display:flex; align-items:center; gap:30px; margin:0;}
.nav-list li {position:relative;}
.main-nav-link {
  font-size:15px;color:#3B4E45; font-weight:500;
  padding:8px 2px; display:inline-flex; align-items:center; gap:6px;
  position:relative;
}
.main-nav-link::after {
  content:""; position:absolute; left:50%; bottom:0;
  width:0; height:2px; background:var(--primary);
  transition:width .3s ease,left .3s ease, color .3s;
}
.main-nav-link:hover {color:var(--primary);}
.main-nav-link:hover::after {left:0; width:100%;}
.main-nav-link.active {color:var(--primary); font-weight:700;}
.main-nav-link.active::after {left:0; width:100%;background:var(--accent);}
.header-actions {display:flex; align-items:center; gap:16px;}
.search-trigger {
  display:flex;align-items:center; justify-content:space-between;
  width:210px;background:rgba(255,255,255,.6);
  border:1px solid var(--border-line);
  border-radius:40px;padding:7px 14px;color:#7C8F85;font-size:13px;
  cursor:pointer; transition:border-color .25s ease,background .25s;
  gap:10px;
}
.search-trigger:hover {border-color:var(--primary); background:#fff;}
.search-trigger-icon {color:var(--primary);}
.kbd-shortcut {border:1px solid var(--border-line); border-radius:4px; padding:0 6px; font-size:11px; background:#fff; color:#7A8B83;}
.header-cta {
  display:inline-flex;align-items:center;gap:8px;
  background: var(--primary); color:#fff !important;
  border-radius:6px; padding:8px 18px; font-size:14px; font-weight:600;
  border:1px solid var(--primary);
  transition:background .25s ease,transform .25s ease,box-shadow .25s;
  line-height:1.4;
}
.header-cta:hover {background:var(--primary-deep); transform:translateY(-1px); box-shadow:var(--shadow-sm);}
.header-fav {
  font-size:18px;color:var(--text-medium); border:none;
  background:transparent; cursor:pointer;
  width:34px;height:34px; display:inline-flex;align-items:center;justify-content:center;
  transition:color .2s;
}
.header-fav:hover{color:var(--accent);}
.navbar-toggler-reset {
  display:none; background:transparent; border:1px solid var(--border-line);
  border-radius:6px;width:42px;height:42px;cursor:pointer;
  color:var(--primary);font-size:20px;align-items:center;justify-content:center;
}
/* drawer */
.drawer-backdrop {
  position:fixed;inset:0;background:rgba(8,42,34,.45);z-index:6000;
  opacity:0;visibility:hidden;transition:.3s;
}
.drawer-backdrop.show{opacity:1;visibility:visible;}
.offcanvas-menu {
  position:fixed;top:0;right:-360px;width:320px;bottom:0;z-index:6100;
  background:var(--bg-warm); padding:32px;
  transition:right .35s cubic-bezier(.2,.75,.25,1);
  box-shadow:-10px 0 40px rgba(8,42,34,.12);
}
.offcanvas-menu.show {right:0;}
.offcanvas-menu .menu-header {display:flex;justify-content:space-between;align-items:center;margin-bottom:32px;}
.offcanvas-close{
  width:36px;height:36px;border-radius:50%; background:var(--sage-tint); border:none;
  color:var(--primary); font-size:14px;cursor:pointer;
}
.offcanvas-nav{display:flex;flex-direction:column;gap:10px;}
.offcanvas-nav a{
  padding:12px 4px; border-bottom:1px solid var(--border-green);
  font-size:17px; color:var(--text-dark); font-weight:600;
  display:flex;justify-content:space-between;align-items:center;
}
.offcanvas-nav a.active{color:var(--primary);}
.offcanvas-nav a i{font-size:14px;opacity:.6;}
.open-drawer {display:none;}

/* ===== hero ===== */
.hero {
  min-height: 87vh;
  display:flex;
  align-items:center;
  position:relative;
  background-image: linear-gradient(103deg, rgba(5,34,27,.92) 0%, rgba(8,42,34,.8) 40%, rgba(8,60,48,.62) 100%), url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center 40%;
  color:#fff;
  overflow:hidden;
}
.hero-content {width:100%; padding-top:150px; padding-bottom:92px;}
.hero-eyebrow {
  display:inline-flex; align-items:center;
  letter-spacing:.2em; font-size:12px; font-weight:600;
  color:#cfe5db; background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.2);
  padding:7px 14px; border-radius:40px;
  margin-bottom:28px;
}
.hero-title {
  font-size:58px;
  font-weight:800;
  line-height:1.18;
  color:#fff;
  max-width: 1020px;
  margin-bottom:24px;
}
.hero-title .accent-line {color:#F2C49A;}
.hero-sub {
  font-size:18px;
  line-height:1.7;
  color:rgba(255,255,255,.82);
  max-width:660px;
  margin-bottom:40px;
}
.hero-actions {display:flex; gap:15px; flex-wrap:wrap; margin-bottom:54px;}
.btn-primary-green {
  background:var(--accent); border:1px solid var(--accent);
  color:#fff; border-radius:6px; padding:11px 22px;
  font-size:16px; font-weight:600;
  transition:background .25s,transform .25s,box-shadow .25s;
  display:inline-flex; align-items:center; gap:10px;
}
.btn-primary-green:hover {
  background:var(--accent-hover); border-color:var(--accent-hover); color:#fff;
  transform:translateY(-2px); box-shadow:0 8px 22px rgba(183,82,43,.22);
}
.btn-outline-light-green{
  border:1px solid rgba(255,255,255,.55); color:#fff;
  border-radius:6px; padding:11px 22px;font-size:16px;font-weight:500;
  background:rgba(255,255,255,.04);
  transition:background .25s,border-color .25s,color .25s,transform .25s;
  display:inline-flex; align-items:center; gap:8px;
}
.btn-outline-light-green:hover{
  background:rgba(255,255,255,.12);border-color:#fff;color:#fff;
  transform:translateY(-2px);
}
.hero-meta {display:flex; flex-wrap:wrap; gap:42px; align-items:center;}
.hero-meta-item {
  display:flex; align-items:center; gap:12px;
  color:rgba(255,255,255,.75); font-size:14px;
}
.hero-meta-item i {font-size:20px; color:#F2C49A; width:22px;text-align:center;}

/* ===== page directory ===== */
.directory-section {background:var(--bg-warm); padding:76px 0 30px;}
.directory-head {display:flex;align-items:flex-end;justify-content:space-between;gap:24px;flex-wrap:wrap;margin-bottom:42px;}
.directory-grid {display:grid;grid-template-columns:repeat(4,1fr);gap:18px;}
.dir-card {
  background:#fff;border:1px solid var(--border-line);
  border-radius:var(--radius-md);
  padding:22px 20px; display:flex; gap:14px;align-items:flex-start;
  min-height:92px; position:relative; overflow:hidden;
  transition:transform .3s ease,box-shadow .3s ease,border-color .3s;
}
.dir-card::after{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:var(--accent);opacity:0;transition:.3s;
}
.dir-card:hover{border-color:rgba(14,79,67,.35); box-shadow:var(--shadow-md); transform:translateY(-3px);}
.dir-card:hover::after{opacity:1;}
.dir-num{
  font-family:var(--font-serif);
  font-size:26px;color:var(--primary); opacity:.75; line-height:1;
  min-width:42px; font-weight:600;
}
.dir-card h3{font-size:17px;font-weight:700;margin:0 0 6px;color:var(--text-dark);line-height:1.3;}
.dir-card p{font-size:13px;color:var(--text-medium);margin:0;line-height:1.6;}
.dir-card a{display:inline-block;margin-top:8px;font-size:13px;font-weight:600;}

/* feature section */
.feature-section {padding:66px 0 0;}
.feature-hd {margin-bottom:32px;}
.feature-grid {display:grid; gap:24px; grid-template-columns:repeat(12,1fr);}
.feature-main {
  grid-column: span 7;
  background:#fff; border-radius:var(--radius-lg);
  overflow:hidden; border:1px solid var(--border-line);
  display:flex; flex-direction:column;
  box-shadow:var(--shadow-sm);
  transition:transform .25s ease, box-shadow .25s ease;
}
.feature-main:hover{transform:translateY(-4px); box-shadow:var(--shadow-hover);}
.feature-main .img-wrap{aspect-ratio:16/8;overflow:hidden;position:relative;}
.feature-main .img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.feature-main:hover .img-wrap img{transform:scale(1.03);}
.feature-main .content-wrap{padding:24px;display:flex;flex-direction:column;flex:1;}
.tag-topline {display:flex; align-items:center; justify-content: space-between; gap:12px; flex-wrap:wrap;margin-bottom:10px;}
.tag {
  display:inline-flex; align-items:center; gap:6px;
  font-size:12px; font-weight:600; letter-spacing:.05em;
  border-radius:4px;
  background:var(--sage-tint); color:var(--primary);
  padding:4px 10px;
}
.date-line{font-size:12px;color:var(--text-medium);}
.feature-main h3{font-size:23px;font-weight:700;line-height:1.45;margin-bottom:8px;}
.feature-main p{color:var(--text-medium); font-size:15px; margin-bottom:14px;}
.card-link {display:inline-flex; gap:10px; align-items:center; font-weight:700; font-size:15px;}
.feature-side {grid-column: span 5; display:flex; flex-direction:column;gap:22px;}
.mini-card{
  background:#fff;border:1px solid var(--border-line); border-radius:var(--radius-md);
  padding:18px 18px; display:flex; gap:16px; align-items:center;
  transition:transform .25s, box-shadow .25s,border-color .25s;
}
.mini-card:hover{border-color:rgba(14,79,67,.38);transform:translateY(-3px);box-shadow:var(--shadow-md);}
.mini-thumb{width:120px;height:90px;flex:0 0 auto;border-radius:6px;overflow:hidden;}
.mini-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s;}
.mini-card:hover .mini-thumb img{transform:scale(1.06);}
.mini-card .mini-info flex:0 1 auto;
.mini-card .mini-cat{font-size:12px; color:var(--accent); font-weight:700;}
.mini-card h4{font-size:17px;font-weight:700;margin:5px 0 5px;line-height:1.5;}
.mini-card .mini-sum {font-size:13px;color:var(--text-medium);margin:0;}

/* latest */
.latest-section {background:#fff; padding:84px 0; border-top:1px solid var(--border-green);}
.latest-layout {display:grid;grid-template-columns:3fr 7fr;gap:62px;}
.latest-left h2{font-size:32px;font-weight:800;}
.latest-list {border-top:1px solid var(--border-line);}
.latest-item {
  display:grid; grid-template-columns:130px 1fr auto; gap:16px;
  padding:22px 8px;
  border-bottom:1px solid var(--border-line);
  transition: background .2s ease;
  border-radius:4px;
}
.latest-item:hover{background:rgba(220,233,226,.25); padding-left:14px;}
.latest-cat{background:var(--sage-tint);color:var(--primary); padding:3px 9px; border-radius:4px; font-size:12px; font-weight:600; justify-self:start;}
.latest-title{font-size:17px;font-weight:700;margin-bottom:6px; line-height:1.4;}
.latest-title a{color:var(--text-dark);}
.latest-title a:hover{color:var(--primary);}
.latest-summary{font-size:14px;color:var(--text-medium);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;margin:0;}
.latest-date-font{color:var(--text-soft);font-size:13px;min-width:90px;text-align:right;}
.latest-empty{
  border:1px dashed rgba(14,79,67,.35); border-radius:8px;
  padding:40px; display:flex;flex-direction:column;align-items:center; justify-content:center;
  gap:10px; color:var(--text-medium);
}
.latest-empty i{font-size:26px;color:var(--primary);opacity:.6;}

/* category-grid 2x2 */
.category-entry-section {padding:84px 0;}
.cat-grid {display:grid; grid-template-columns:repeat(2,1fr); gap:22px 18px;margin-top:30px;}
.cat-card{
  background:#fff; border:1px solid var(--border-line); border-radius:var(--radius-md);
  padding:22px 24px; display:flex; gap:18px; align-items:center;
  position:relative; overflow:hidden;
  transition:transform .3s ease, box-shadow .3s, border-color .3s;
}
.cat-card::before{
  content:"";position:absolute;left:0;top:0;width:100%;height:3px;
  background:var(--primary);opacity:0;transition:opacity .3s;
}
.cat-card:hover{border-color:rgba(14,79,67,.34);transform:translateY(-3px);box-shadow:var(--shadow-hover);}
.cat-card:hover::before{opacity:1;}
.cat-icon{
  width:58px;height:58px;border-radius:14px;background:var(--sage-tint);
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary); font-size:24px; flex:0 0 auto;
}
.cat-card:nth-child(even) .cat-icon{background:rgba(183,82,43,.12); color:var(--accent);}
.cat-entry-text{flex:1;}
.cat-entry-text h3{font-size:19px;font-weight:700;margin:0 0 8px;}
.cat-entry-text p{font-size:14px;color:var(--text-medium);margin:0;}
.cat-card .go-arrow{font-size:18px; color:var(--primary); opacity:0; transform:translateX(-8px);transition:.3s;}
.cat-card:hover .go-arrow{opacity:1;transform:translateX(0);}

/* faq */
.faq-section{ background:var(--sage-tint); padding:86px 0;}
.faq-wrap{max-width:1060px;margin:0 auto;}
.qa-panel{border-top:1px solid var(--border-line);}
.qa-item{border-bottom:1px solid var(--border-line); padding:0; background:transparent;border-radius:0!important;}
.qa-btn{
  background:transparent; border:none;
  padding:22px 6px; width:100%; text-align:left;
  display:flex; justify-content:space-between; align-items:center;
  cursor:pointer; color:var(--text-dark); font-weight:600;
  font-size:17px;
}
.qa-btn .qa-icon{
  width:27px;height:27px;min-width:27px;border-radius:50%;
  border:1px solid var(--primary);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
  transition:transform .3s ease, background .2s ease,color .2s;
  font-size:16px;font-weight:400;
}
.qa-item.open .qa-icon{transform:rotate(45deg); background:var(--primary); color:#fff;}
.qa-content{ max-height:0; overflow:hidden; transition:max-height .35s ease, padding .3s; }
.qa-content-inner{padding:0 50px 18px 6px; color:var(--text-medium); font-size:15px;}

/* bookmark CTA */
.bookmark-cta {padding:80px 0;}
.cta-box {
  background:linear-gradient(120deg, #082A22, #0E4F43);
  border-radius:16px; padding:48px 44px;
  color:#fff; display:flex; flex-wrap:wrap; justify-content:space-between;align-items:center;
  gap:28px; position:relative; overflow:hidden;
}
.cta-box::after{
  content:"";position:absolute; right:-60px;top:-60px; width:270px;height:270px; border-radius:50%;
  border:1px solid rgba(255,255,255,.2);
}
.cta-box .cta-copy h2{font-size:30px;font-weight:800;}
.cta-box .cta-copy p{color: rgba(255,255,255,.72); margin:4px 0 0; font-size:15px;}
.cta-actions-wrap{display:flex;gap:13px;flex-wrap:wrap; position:relative;z-index:2;}
.btn-light-border {
  background:transparent;border:1px solid rgba(255,255,255,.5);color:#fff;
  border-radius:6px;padding:11px 22px;font-weight:600;
  transition:background .2s,border-color .2s,transform .2s;
  display:inline-flex;align-items:center;gap:8px;
}
.btn-light-border:hover{background:rgba(255,255,255,.12);border-color:#fff;color:#fff;}
.btn-solid-white{background:#fff;color:var(--primary-deep)!important;border:1px solid #fff;border-radius:6px;padding:11px 22px;font-weight:700;display:inline-flex;gap:8px;align-items:center;transition:.25s;}
.btn-solid-white:hover{background:var(--sage-tint);transform:translateY(-1px);box-shadow:0 8px 22px rgba(0,0,0,.16);}

/* footer */
.site-footer{background:#082A22;color:rgba(255,255,255,.8);padding:58px 0 0; font-size:14px;}
.footer-main{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:45px;padding-bottom:35px;}
.footer-brand-title{font-size:22px;font-weight:800;color:#fff;display:inline-flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand-title .brand-badge{width:28px;height:28px;font-size:16px;border-radius:6px;display:inline-flex;align-items:center;justify-content:center;background:var(--primary);}
.footer-brand-title span:nth-child(2){color:#fff;}
.footer-brand-title span:nth-child(3){color:#A9D6C5;}
.footer-about{color:rgba(255,255,255,.65);font-size:14px;line-height:1.75;margin-bottom:18px;max-width:300px;}
.footer-col h4{
  color:#F6E6D6;font-size:15px;font-weight:700;margin-bottom:14px;letter-spacing:.06em;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{color:rgba(255,255,255,.7); display:inline-flex;align-items:center;gap:6px;}
.footer-col ul a:hover{color:#EDC998;}
.footer-col ul a i{font-size:8px;color:#7FB3A0;}
.footer-note{display:flex; gap:12px;}
.footer-sub{background:rgba(255,255,255,.05); border:1px solid rgba(255,255,255,.1); border-radius:6px; padding:14px 16px; margin-top:8px; font-size:13px; color:rgba(255,255,255,.6);}
.search-inline{width:100%; background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.2);padding:15px 16px;border-radius:8px;display:flex;align-items:center;gap:8px;color:rgba(255,255,255,.55); }
.footer-bottom{ border-top:1px solid rgba(255,255,255,.1);padding:22px 0; display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px; font-size:13px;color:rgba(255,255,255,.55);}
.footer-bottom .sep{opacity:.35;margin:0 8px;}
.footer-bottom a{color:rgba(255,255,255,.6);}
.footer-bottom a:hover{color:#EDC998;}
.back-top{
  width:44px;height:44px;border-radius:50%;
  background:rgba(255,255,255,.1); color:#D5E3DD; border:1px solid rgba(255,255,255,.2);
  display:inline-flex;align-items:center;justify-content:center;
  transition:.3s;cursor:pointer;
}
.back-top:hover{background:var(--accent);color:#fff; transform:translateY(-3px);}
/* special numbers */
.serif-num{font-family:var(--font-serif);}

/* responsive */
@media (min-width:993px) and (max-width:1100px){
  .nav-list{gap:20px;}
  .search-trigger{width:150px;}
  .footer-main{grid-template-columns:1.5fr 1fr 1fr; }
}
@media (max-width:992px){
  .main-nav-list,.header-actions .search-trigger,.header-actions .header-fav{display:none;}
  .open-drawer{display:inline-flex !important;}
  .section-padding{padding:68px 0;}
  .directory-grid{grid-template-columns:repeat(2,1fr);}
  .footer-main{grid-template-columns:1fr 1fr;gap:28px;}
  .latest-layout{grid-template-columns:1fr;gap:12px;}
  .latest-item{grid-template-columns:100px 1fr;}
  .latest-date-font{grid-column:2;}
}
@media (max-width:768px){
  .header-inner{padding:0 16px;}
  .hero-title{font-size:38px;}
  .sec-title{font-size:28px;}
  .container-xl-large{padding-left:16px;padding-right:16px;}
  .hero-content{padding-top:110px;}
  .feature-grid{grid-template-columns:1fr;display:block;}
  .feature-side{margin-top:20px;}
  .cat-grid{grid-template-columns:1fr;}
  .bookmark-cta{padding:50px 0;}
  .cta-box{padding:30px 22px;}
  .section-padding{padding:56px 0;}
  .directory-section{padding:50px 0 20px;}
  .latest-left h2{font-size:26px;}
}
@media (max-width:575px){
  .brand-logo{font-size:18px; gap:7px;}
  .brand-badge{width:32px;height:32px;font-size:18px;}
  .hero-title{font-size:34px;line-height:1.28;}
  .hero-sub{font-size:16px;}
  .directory-grid{grid-template-columns:1fr;}
  .cat-card{padding:18px;}
  .mini-card{flex-direction:column;}
  .mini-thumb{width:100%;height:120px;}
  .latest-item{grid-template-columns:1fr; padding:16px 4px;}
  .latest-date-font{text-align:left;}
  .footer-main{grid-template-columns:1fr; gap:26px;}
  .footer-bottom .flex{flex-direction:column;}
  .qa-content-inner{padding-left:4px;padding-right:10px;}
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior:auto !important;
  }
}

/* roulang page: article */
:root{
  --primary:#0E4F43;
  --primary-deep:#0A332B;
  --forest:#082A22;
  --mint:#DCE9E2;
  --line:rgba(14,79,67,.14);
  --line2:rgba(14,79,67,.08);
  --accent:#B7522B;
  --accent-dark:#98401F;
  --sand:#F6F2EA;
  --paper:#FFFFFF;
  --text:#1B201D;
  --muted:#5E6F65;
  --radius:10px;
  --radius-sm:6px;
  --shadow-sm:0 1px 2px rgba(8,42,34,.04),0 8px 24px rgba(8,42,34,.06);
  --shadow-lg:0 16px 40px rgba(8,42,34,.12);
  --font-main:"PingFang SC","Microsoft YaHei","Source Han Sans CN","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-serif:"Playfair Display","Times New Roman",Georgia,serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  font-size:16px;
  line-height:1.75;
  background:var(--sand);
  color:var(--text);
  -webkit-font-smoothing:antialiased;
}
body::-webkit-scrollbar{width:10px}
body::-webkit-scrollbar-thumb{background:rgba(14,79,67,.28);border-radius:20px}
body::-webkit-scrollbar-track{background:transparent}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--accent)}
img{max-width:100%;height:auto;display:block}
ul{list-style:none;margin-bottom:0;padding-left:0}
button{font-family:inherit;border:0;background:none;}
input,textarea{font-family:inherit}
.container-xl-large{
  width:100%;
  max-width:1280px;
  margin-left:auto;
  margin-right:auto;
  padding-left:24px;
  padding-right:24px;
}
.icon-btn{
  width:40px;height:40px;
  display:inline-flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:8px;
  background:rgba(255,255,255,.65);
  color:var(--primary-deep);
  transition:all .3s ease;
}
.icon-btn:hover{
  background:var(--primary);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:var(--shadow-sm);
}
.icon-btn:focus-visible,
a:focus-visible,
button:focus-visible,
input:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:2px;
}

/* ===== Header ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:1080;
  background:rgba(246,242,234,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
  transition:box-shadow .2s ease;
}
.site-header.is-scrolled{
  box-shadow:0 1px 18px rgba(8,42,34,.06);
}
.header-row{
  min-height:72px;
  display:flex;
  align-items:center;
  gap:20px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-badge{
  width:42px;
  height:42px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  background:var(--primary);
  color:#fff;
  font-family:var(--font-serif);
  font-size:21px;
  font-weight:700;
  border-radius:12px;
  box-shadow:0 6px 14px rgba(14,79,67,.18);
}
.brand-title{
  font-size:20px;
  font-weight:700;
  color:var(--text);
  line-height:1.1;
  letter-spacing:.01em;
}
.brand-title .brand-strong{color:var(--primary)}
.brand-title .brand-weak{
  color:#1f2d27;
  font-weight:600;
  font-size:15px;
  display:block;
  margin-top:1px;
}
.main-nav{margin-left:auto}
.nav-list{display:flex;align-items:center;gap:2px}
.main-nav-link{
  display:inline-flex;
  align-items:center;
  padding:8px 14px;
  font-size:14px;
  font-weight:500;
  color:#274138;
  border-radius:7px;
  position:relative;
  transition:background .2s ease,color .2s ease;
}
.main-nav-link:after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:3px;
  height:2px;
  background:var(--primary);
  border-radius:10px;
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .3s ease;
}
.main-nav-link:hover{color:var(--primary);background:rgba(255,255,255,.45)}
.main-nav-link:hover:after{transform:scaleX(1)}
.main-nav-link.active{color:var(--primary);font-weight:700}
.main-nav-link.active:after{transform:scaleX(1)}
.header-tools{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.search-box{
  width:224px;
  height:40px;
  display:flex;
  align-items:center;
  gap:8px;
  background:#fff;
  border:1px solid var(--line);
  border-radius:10px;
  padding:0 10px 0 12px;
  color:var(--muted);
  font-size:13px;
  cursor:pointer;
  transition:border-color .2s ease,box-shadow .2s ease,background .2s ease;
}
.search-box:hover{
  border-color:var(--primary);
  background:#fffdf8;
}
.search-box kbd{
  margin-left:auto;
  padding:2px 7px;
  border:1px solid var(--line);
  border-radius:5px;
  background:var(--sand);
  font-family:inherit;
  font-size:11px;
  color:var(--muted);
}
.search-trigger{display:none}
.cta-btn{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:9px 16px;
  background:var(--primary);
  border:1px solid var(--primary);
  color:#fff;
  border-radius:8px;
  font-size:14px;
  font-weight:600;
  text-decoration:none;
  transition:all .25s ease;
  white-space:nowrap;
}
.cta-btn:hover{
  background:var(--primary-deep);
  border-color:var(--primary-deep);
  color:#fff;
  transform:translateY(-1px);
  box-shadow:0 10px 24px rgba(14,79,67,.16);
}
.nav-toggle{
  width:42px;
  height:42px;
  display:none;
  color:var(--primary-deep);
  font-size:20px;
  border:1px solid var(--line);
  border-radius:9px;
  background:#fff;
}
body.nav-open{overflow:hidden}

/* command palette */
.command-panel{
  position:fixed;
  inset:0;
  z-index:2100;
  display:flex;
  align-items:flex-start;
  justify-content:center;
  padding:8vh 20px 20px;
  background:rgba(8,42,34,.42);
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,visibility .25s ease;
}
.command-panel.is-open{opacity:1;visibility:visible}
.command-shell{
  width:100%;
  max-width:640px;
  background:var(--paper);
  border-radius:16px;
  box-shadow:0 24px 80px rgba(8,42,34,.22);
  padding:10px;
  transform:translateY(14px);
  transition:transform .3s ease;
}
.command-panel.is-open .command-shell{transform:translateY(0)}
.command-search{
  display:flex;
  align-items:center;
  gap:12px;
  border-bottom:1px solid var(--line2);
  padding:6px 10px 12px;
  color:var(--primary);
}
.command-search i{font-size:18px}
.command-search input{
  flex:1;
  border:0;
  background:transparent;
  font-size:15px;
  padding:4px 0;
  color:var(--text);
}
.command-search input:focus{outline:none}
.command-close{
  width:32px;height:32px;
  border-radius:8px;
  color:var(--muted);
  transition:all .2s;
}
.command-close:hover{background:var(--mint);color:var(--primary)}
.command-section{padding:12px 6px 6px}
.command-label{
  font-size:12px;
  color:var(--muted);
  letter-spacing:.08em;
  padding:0 8px 8px;
  text-transform:none;
}
.command-links{display:grid;grid-template-columns:repeat(2,1fr);gap:4px}
.command-links a{
  display:flex;
  align-items:center;
  gap:10px;
  padding:10px 12px;
  border-radius:9px;
  color:var(--text);
  font-size:14px;
  transition:all .18s ease;
}
.command-links a:hover{background:var(--mint);color:var(--primary)}
.command-links a i{width:18px;color:var(--primary)}

/* ===== post hero ===== */
.post-hero{
  position:relative;
  background:linear-gradient(128deg,var(--forest) 0%,var(--primary-deep) 46%,#125548 100%);
  padding:70px 0 78px;
  color:#fff;
  overflow:hidden;
}
.post-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:radial-gradient(circle at 85% 20%,rgba(183,82,43,.18),transparent 34%),radial-gradient(circle at 8% 90%,rgba(220,233,226,.08),transparent 30%);
  pointer-events:none;
}
.post-hero .post-hero-inner{position:relative;z-index:2}
.crumb-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:rgba(255,255,255,.62);
  margin-bottom:34px;
}
.crumb-line a{color:rgba(255,255,255,.72);text-decoration:none;transition:.2s}
.crumb-line a:hover{color:#fff}
.crumb-line .crumb-slash{opacity:.45}
.crumb-line span{max-width:220px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;opacity:.85}
.post-kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:5px 13px;
  border:1px solid rgba(255,255,255,.22);
  background:rgba(255,255,255,.08);
  border-radius:30px;
  font-size:12px;
  letter-spacing:.05em;
  color:#eef6f0;
  margin-bottom:20px;
}
.post-kicker i{color:#d38a54}
.post-hero h1{
  color:#fff;
  font-size:clamp(28px,3.6vw,46px);
  font-weight:800;
  line-height:1.32;
  max-width:900px;
  margin-bottom:26px;
  letter-spacing:.01em;
  text-wrap:balance;
}
.post-meta-line{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:18px;
  color:rgba(255,255,255,.7);
  font-size:13px;
}
.post-meta-line .meta-item{display:inline-flex;align-items:center;gap:7px}
.post-meta-line i{color:#c28a63}
.meta-badge{
  display:inline-flex;
  padding:3px 11px;
  border-radius:20px;
  background:rgba(183,82,43,.22);
  border:1px solid rgba(230,161,111,.35);
  color:#f6cbb0;
  font-size:12px;
}

/* ===== main wrap ===== */
.post-main{
  padding:64px 0 24px;
  position:relative;
  z-index:5;
}
.reading-col{
  max-width:860px;
}
.paper-article{
  background:var(--paper);
  border:1px solid var(--line2);
  border-radius:var(--radius);
  box-shadow:var(--shadow-sm);
  padding:clamp(26px,4vw,52px);
  margin-bottom:48px;
}
.article-body{
  font-size:16px;
  line-height:1.95;
  color:#2a322c;
  word-break:break-word;
}
.article-body > * + *{margin-top:1.5em}
.article-body p{line-height:1.95}
.article-body h2{
  font-size:1.45rem;
  margin-top:2em;
  margin-bottom:.8em;
  font-weight:700;
  color:var(--primary-deep);
  padding-left:14px;
  border-left:3px solid var(--accent);
  line-height:1.4;
}
.article-body h3{
  font-size:1.17rem;
  font-weight:700;
  color:var(--primary);
  margin-top:1.8em;
  margin-bottom:.6em;
}
.article-body ul,.article-body ol{padding-left:1.4em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.45em 0;line-height:1.85}
.article-body a{text-decoration:underline;text-underline-offset:4px;text-decoration-color:rgba(14,79,67,.3)}
.article-body a:hover{text-decoration-color:var(--accent)}
.article-body img{border-radius:10px;margin:1.8em 0}
.article-body blockquote{
  margin:1.8em 0;
  padding:18px 24px 18px 26px;
  background:#f3f7f3;
  border-left:4px solid var(--accent);
  color:#4a5b50;
  border-radius:0 8px 8px 0;
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body table{
  width:100%;
  margin:2em auto;
  border-collapse:collapse;
  font-size:14px;
  background:#fff;
}
.article-body th{
  background:var(--mint);
  color:var(--primary-deep);
  padding:12px 14px;
  font-weight:700;
  text-align:left;
  border:1px solid rgba(14,79,67,.14);
}
.article-body td{
  padding:11px 14px;
  border:1px solid var(--line2);
}
.article-body hr{
  border:0;
  border-top:1px solid var(--line);
  margin:2.2em 0;
}
.article-body code{
  background:var(--mint);
  padding:2px 8px;
  border-radius:5px;
  font-size:.9em;
  color:var(--primary-deep);
}

/* Empty */
.empty-paper{
  background:var(--paper);
  border:1px dashed rgba(14,79,67,.25);
  border-radius:14px;
  padding:60px 30px;
  text-align:center;
  color:var(--muted);
}
.empty-paper .empty-icon{
  width:66px;
  height:66px;
  margin:0 auto 20px;
  background:var(--mint);
  color:var(--primary);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:25px;
}
.empty-paper h2{font-size:22px;color:var(--text)}
.empty-paper p{font-size:14px;max-width:400px;margin:10px auto}
.btn-home{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-top:16px;
  background:var(--primary);
  color:#fff;
  padding:10px 18px;
  border-radius:8px;
  font-weight:600;
  font-size:14px;
  transition:.3s;
}
.btn-home:hover{background:var(--accent);color:#fff;transform:translateY(-2px)}

/* continue cards */
.related-block{padding-bottom:28px}
.section-label{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:28px;
}
.section-label .num{
  font-family:var(--font-serif);
  color:var(--accent);
  font-size:20px;
  font-style:normal;
}
.section-label.line{
  flex:1;
  height:1px;
  background:var(--line);
}
.related-grid{
  display:grid;
  grid-template-columns:1fr;
  gap:24px;
}
.mini-card{
  display:flex;
  background:#fff;
  border:1px solid var(--line2);
  border-radius:12px;
  overflow:hidden;
  text-decoration:none;
  box-shadow:0 1px 2px rgba(8,42,34,.03);
  transition:transform .28s,box-shadow .28s,border-color .28s;
}
.mini-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-sm);
  border-color:rgba(14,79,67,.3);
}
.mini-card-img{
  width:120px;
  min-height:120px;
  background-size:cover;
  background-position:center;
  position:relative;
  flex-shrink:0;
}
.mini-card-img::after{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(10,51,43,.08),rgba(10,51,43,0))}
.mini-card-body{padding:20px 22px;display:flex;flex-direction:column;justify-content:center;gap:9px}
.mini-card-time{font-size:12px;color:var(--muted);display:flex;gap:10px;align-items:center}
.mini-card-time .tag{color:var(--accent)}
.mini-card-title{
  font-size:17px;
  font-weight:700;
  color:var(--text);
  line-height:1.45;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  transition:color .2s;
}
.mini-card:hover .mini-card-title{color:var(--primary)}
.mini-card-desc{
  font-size:13.5px;
  color:var(--muted);
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.mini-card-more{font-size:13px;color:var(--primary);font-weight:600}

/* aside */
.post-sidebar{position:sticky;top:96px}
.side-card{
  background:#fff;
  border:1px solid var(--line2);
  border-radius:12px;
  padding:22px;
  margin-bottom:24px;
  box-shadow:0 1px 2px rgba(8,42,34,.02);
}
.side-card h3{
  font-size:15px;
  color:var(--text);
  font-weight:700;
  padding-bottom:13px;
  margin-bottom:16px;
  border-bottom:1px solid var(--line);
  display:flex;
  gap:10px;
  align-items:center;
}
.side-card h3 i{color:var(--accent)}
.side-info-list li{
  display:flex;
  gap:10px;
  font-size:13.5px;
  color:var(--muted);
  padding:9px 0;
  border-bottom:1px dashed var(--line2);
  line-height:1.6;
}
.side-info-list li:last-child{border-bottom:0}
.side-info-list li strong{color:#3b4a40;font-weight:600;flex-shrink:0}
.side-action-grid{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:10px;
}
.side-action-btn{
  display:flex;
  align-items:center;
  gap:7px;
  justify-content:center;
  padding:10px 6px;
  font-size:13px;
  color:var(--primary);
  background:#f3f9f5;
  border:1px solid rgba(14,79,67,.12);
  border-radius:8px;
  cursor:pointer;
  transition:.2s;
}
.side-action-btn:hover{background:var(--primary);color:#fff}
.side-action-btn.is-saved{background:var(--accent);border-color:var(--accent);color:#fff}
.side-note{
  background:var(--sand);
  border:1px solid var(--line2);
  border-radius:12px;
  padding:18px 20px;
  color:var(--muted);
  font-size:13.5px;
  line-height:1.85;
}
.side-note strong{color:var(--primary)}
.side-note a{font-weight:600}

/* bottom category map */
.zones-strip{
  background:#fff;
  border-top:1px solid var(--line);
  padding:46px 0 64px;
}
.zone-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
}
.zone-cell{
  border:1px solid var(--line2);
  background:var(--sand);
  border-radius:12px;
  padding:22px;
  transition:.25s;
}
.zone-cell:hover{
  transform:translateY(-3px);
  box-shadow:var(--shadow-sm);
  background:#fff9f0;
  border-color:rgba(183,82,43,.2);
}
.zone-cell .z-icon{color:var(--primary)}
.zone-cell h4{font-size:16px;font-weight:700;color:var(--text);margin:10px 0 6px}
.zone-cell p{font-size:13px;color:var(--muted);line-height:1.7;margin-bottom:0}
.zone-cell a{display:inline-flex;align-items:center;gap:5px;font-size:13px;font-weight:600;margin-top:10px}

/* final CTA */
.app-cta{
  padding:56px 0 72px;
}
.app-cta-wrap{
  background:linear-gradient(120deg,#0C352B,#0E4F43 62%,#0A332B);
  border-radius:20px;
  padding:52px 60px;
  color:#fff;
  display:flex;
  align-items:center;
  gap:28px;
  justify-content:space-between;
  flex-wrap:wrap;
}
.app-cta-wrap h2{
  color:#fff;
  font-size:26px;
  font-weight:800;
  letter-spacing:.01em;
}
.app-cta-wrap p{color:rgba(255,255,255,.72);margin-top:8px;font-size:14px;max-width:560px}
.app-cta-actions{display:flex;gap:12px;flex-wrap:wrap}
.btn-light-pill{
  background:#fff;
  color:var(--primary);
  padding:10px 18px;
  border-radius:9px;
  font-size:14px;
  font-weight:700;
  border:1px solid #fff;
  transition:.2s;
}
.btn-light-pill:hover{background:var(--sand);color:var(--accent)}
.btn-fav{
  background:transparent;
  border:1px solid rgba(255,255,255,.38);
  color:#fff;
  padding:10px 18px;
  border-radius:9px;
  font-size:14px;
  font-weight:600;
  transition:.2s;
}
.btn-fav:hover{background:rgba(255,255,255,.08)}
.btn-fav.is-saved{background:var(--accent);border-color:var(--accent)}

/* footer */
.site-footer{
  background:var(--forest);
  color:rgba(255,255,255,.78);
  padding:58px 0 0;
  font-size:14px;
}
.footer-main{
  display:grid;
  grid-template-columns:1.2fr 1fr 1fr 1.1fr;
  gap:44px;
  padding-bottom:42px;
}
.footer-brand-col .footer-brand-title{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:20px;
  font-weight:700;
  color:#fff;
  margin-bottom:18px;
}
.footer-brand-title .brand-badge{
  width:38px;height:38px;
  background:var(--accent);
  border-radius:11px;
  color:#fff;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:var(--font-serif);
  font-size:18px;
}
.footer-about{
  color:rgba(255,255,255,.56);
  line-height:1.8;
  font-size:13.5px;
  margin-bottom:18px;
  max-width:320px;
}
.search-inline{
  max-width:280px;
  border:1px solid rgba(255,255,255,.16);
  padding:10px 13px;
  border-radius:9px;
  color:rgba(255,255,255,.45);
  font-size:12.5px;
  background:rgba(255,255,255,.03);
  gap:8px;
  display:flex;
  align-items:center;
}
.footer-col h4{
  font-size:15px;
  color:#fff;
  font-weight:700;
  margin-bottom:18px;
  padding-bottom:10px;
  border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-col ul li{
  margin-bottom:11px;
}
.footer-col ul a{
  color:rgba(255,255,255,.6);
  font-size:13.5px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  text-decoration:none;
  transition:.2s;
}
.footer-col ul a i{font-size:5px;color:var(--accent)}
.footer-col ul a:hover{color:#fff;text-decoration:underline;text-decoration-color:rgba(255,255,255,.4);text-underline-offset:4px}
.footer-col p{
  font-size:13.5px;
  color:rgba(255,255,255,.55);
  line-height:1.8;
}
.back-top{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;
  height:38px;
  margin-top:12px;
  border-radius:10px;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.12);
  color:#fff;
  transition:.25s;
}
.back-top:hover{background:var(--accent);color:#fff;transform:translateY(-3px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.07);
  padding:22px 0;
  display:flex;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  color:rgba(255,255,255,.38);
  font-size:12.5px;
}
.footer-bottom span{
  display:inline-flex;align-items:center;gap:6px;
}
.footer-bottom span::before{
  content:"";
  width:7px;height:7px;border-radius:50%;
  background:#5CB85C;
  display:inline-block;
  box-shadow:0 0 0 3px rgba(92,184,92,.18);
}

/* responsive */
@media (max-width:1199.98px){
  .search-box{display:none}
  .search-trigger{display:inline-flex}
  .main-nav{margin-left:auto}
}
@media (max-width:991.98px){
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:fixed;
    top:72px;
    right:0;
    width:min(82vw,390px);
    height:calc(100vh - 72px);
    background:#fff;
    border-left:1px solid var(--line2);
    padding:28px 26px;
    margin-left:0;
    transform:translateX(100%);
    transition:transform .35s ease;
    box-shadow:-24px 0 48px rgba(8,42,34,.12);
    overflow-y:auto;
    z-index:1090;
  }
  .main-nav-list{flex-direction:column;align-items:stretch;gap:8px}
  .main-nav-link{font-size:15px;padding:12px 14px}
  .main-nav-link:after{left:36px;bottom:5px}
  body.nav-open .main-nav{transform:translateX(0)}
  body.nav-open::after{
    content:"";
    position:fixed;inset:0;
    background:rgba(8,42,34,.5);
    z-index:1060;
  }
  .footer-main{grid-template-columns:1fr 1fr;gap:32px}
  .app-cta-wrap{padding:38px 28px}
}
@media (max-width:767.98px){
  .post-hero{padding:44px 0 54px}
  .post-main{padding:34px 0 0}
  .breadcrumb{margin-bottom:22px}
  .paper-article{padding:24px 20px}
  .zone-grid{grid-template-columns:repeat(2,1fr)}
  .related-grid{grid-template-columns:1fr}
  .footer-main{grid-template-columns:1fr;gap:24px}
  .post-meta-line{gap:10px 14px}
  .app-cta-wrap{flex-direction:column;align-items:flex-start}
  .mini-card{flex-direction:column}
  .mini-card-img{width:100%;min-height:160px}
  .site-header .cta-btn{padding:8px 11px;font-size:12.5px}
}
@media (max-width:575.98px){
  .container-xl-large{padding-left:18px;padding-right:18px}
  .header-row{gap:9px}
  .brand-badge{width:35px;height:35px;font-size:17px}
  .brand-title{font-size:17px;line-height:1}
  .brand-title .brand-weak{font-size:12px}
  .header-tools{gap:6px}
  .cta-btn span{display:none}
  .zone-grid{grid-template-columns:1fr}
  .app-cta-actions{width:100%}
  .app-cta-actions>*{flex:1;justify-content:center}
  .footer-bottom{flex-direction:column}
  .command-links{grid-template-columns:1fr}
}
@media(prefers-reduced-motion:reduce){
  *,*::before,*::after{transition:none !important;animation:none !important;scroll-behavior:auto !important}
}

/* roulang page: category1 */
:root {
      --c-primary: #0E4F43;
      --c-primary-dark: #0A332B;
      --c-primary-deep: #082A22;
      --c-primary-soft: #DCE9E2;
      --c-accent: #B7522B;
      --c-bg: #F6F2EA;
      --c-surface: #FFFFFF;
      --c-text: #1B201D;
      --c-text-muted: #5E6F65;
      --c-border: rgba(14, 79, 67, .14);
      --font-cn: "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", "Noto Sans SC", sans-serif;
      --font-serif: Georgia, "Times New Roman", serif;
      --radius-sm: 4px;
      --radius-md: 8px;
      --radius-lg: 12px;
      --shadow-sm: 0 1px 2px rgba(8, 42, 34, .04), 0 8px 24px rgba(8, 42, 34, .06);
      --shadow-lg: 0 16px 40px rgba(8, 42, 34, .12);
      --header-h: 72px;
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      font-family: var(--font-cn);
      background: var(--c-bg);
      color: var(--c-text);
      font-size: 16px;
      line-height: 1.7;
      -webkit-font-smoothing: antialiased;
    }

    img {
      max-width: 100%;
      height: auto;
      display: block;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .25s ease, background-color .25s ease, border-color .25s ease, opacity .25s ease, box-shadow .25s ease, transform .25s ease;
    }

    button {
      font-family: inherit;
    }

    p {
      margin: 0 0 1rem;
    }

    ul,
    ol {
      margin: 0;
      padding: 0;
    }

    input {
      font-family: inherit;
    }

    :focus-visible {
      outline: 2px solid var(--c-accent);
      outline-offset: 3px;
      border-radius: var(--radius-sm);
    }

    .container-xl-large {
      width: 100%;
      max-width: 1280px;
      margin-left: auto;
      margin-right: auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 1040;
      height: var(--header-h);
      background: rgba(246, 242, 234, .86);
      -webkit-backdrop-filter: blur(14px);
      backdrop-filter: blur(14px);
      border-bottom: 1px solid transparent;
      transition: border-color .3s ease, box-shadow .3s ease, background-color .3s ease;
    }

    .site-header.scrolled {
      border-bottom: 1px solid var(--c-border);
      box-shadow: 0 6px 24px rgba(8, 42, 34, .05);
    }

    .header-inner {
      display: flex;
      align-items: center;
      gap: 20px;
      height: 100%;
    }

    .site-brand {
      display: inline-flex;
      align-items: center;
      flex-shrink: 0;
      gap: 10px;
    }

    .brand-symbol {
      width: 42px;
      height: 42px;
      display: grid;
      place-items: center;
      background: var(--c-primary);
      color: #fff;
      border-radius: 10px;
      font-family: var(--font-serif);
      font-size: 20px;
      line-height: 1;
    }

    .brand-name {
      display: flex;
      flex-direction: column;
      line-height: 1.15;
      letter-spacing: .02em;
      color: var(--c-text);
    }

    .brand-name strong {
      color: var(--c-primary);
      font-size: 18px;
      font-weight: 800;
    }

    .brand-sub {
      font-size: 11px;
      color: var(--c-text-muted);
      letter-spacing: .14em;
      margin-top: 3px;
    }

    .main-nav {
      margin-left: auto;
    }

    .main-nav-list {
      display: flex;
      gap: 2px;
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .main-nav-link {
      position: relative;
      display: block;
      margin: 0 2px;
      padding: 10px 14px;
      border-radius: var(--radius-sm);
      color: #31443b;
      font-size: 15px;
      font-weight: 500;
      line-height: 1.4;
    }

    .main-nav-link::after {
      content: "";
      position: absolute;
      left: 14px;
      right: 14px;
      bottom: 4px;
      height: 2px;
      background: var(--c-primary);
      border-radius: 2px;
      transform: scaleX(0);
      transform-origin: left center;
      transition: transform .25s ease;
    }

    .main-nav-link:hover {
      color: var(--c-primary);
    }

    .main-nav-link:hover::after,
    .main-nav-link.active::after {
      transform: scaleX(1);
    }

    .main-nav-link.active {
      color: var(--c-primary);
      font-weight: 600;
    }

    .main-nav-link.active::before {
      content: "";
      display: inline-block;
      width: 5px;
      height: 5px;
      border-radius: 50%;
      background: var(--c-accent);
      margin-right: 6px;
      vertical-align: 2px;
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .cmd-search {
      display: inline-flex;
      align-items: center;
      justify-content: flex-start;
      gap: 9px;
      width: 220px;
      height: 42px;
      padding: 0 9px 0 13px;
      border: 1px solid var(--c-border);
      border-radius: 999px;
      background: rgba(255, 255, 255, .9);
      color: var(--c-text-muted);
      font-size: 14px;
      cursor: pointer;
      transition: border-color .25s ease, box-shadow .25s ease, background-color .25s ease;
    }

    .cmd-search:hover {
      border-color: rgba(14, 79, 67, .34);
      background: #fff;
      box-shadow: var(--shadow-sm);
    }

    .cmd-search i {
      color: var(--c-primary);
      font-size: 14px;
    }

    .cmd-search kbd {
      margin-left: auto;
      padding: 2px 7px;
      border: 1px solid var(--c-border);
      border-radius: 999px;
      background: var(--c-bg);
      font-family: var(--font-cn);
      font-size: 11px;
      line-height: 1.6;
      color: var(--c-text-muted);
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 11px 20px;
      border: 1px solid transparent;
      border-radius: 6px;
      font-size: 15px;
      font-weight: 600;
      line-height: 1.4;
      text-align: center;
      transition: transform .25s ease, box-shadow .25s ease, background-color .25s ease, color .25s ease, border-color .25s ease;
    }

    .btn:hover {
      transform: translateY(-1px);
      box-shadow: 0 8px 22px rgba(8, 42, 34, .08);
    }

    .btn-header-login {
      height: 42px;
      padding-left: 16px;
      padding-right: 16px;
      border: 1px solid rgba(14, 79, 67, .2);
      border-radius: 999px;
      color: var(--c-primary);
      background: #fff;
      font-size: 14px;
    }

    .btn-header-login:hover {
      border-color: var(--c-primary);
      background: var(--c-primary-soft);
    }

    .mobile-toggle {
      display: none;
      justify-content: center;
      align-items: center;
      width: 44px;
      height: 44px;
      border: 1px solid var(--c-border);
      background: #fff;
      border-radius: 10px;
      color: var(--c-primary);
      font-size: 18px;
    }

    .mobile-nav {
      display: none;
      position: fixed;
      top: var(--header-h);
      left: 0;
      right: 0;
      z-index: 1030;
      max-height: calc(100vh - var(--header-h));
      overflow-y: auto;
      padding: 16px 20px 22px;
      background: rgba(255, 253, 249, .98);
      border-bottom: 1px solid var(--c-border);
      opacity: 0;
      pointer-events: none;
      transform: translateY(-10px);
      transition: opacity .25s ease, transform .25s ease;
    }

    body.mobile-open .mobile-nav {
      opacity: 1;
      pointer-events: auto;
      transform: translateY(0);
    }

    .mobile-nav-list {
      list-style: none;
      display: flex;
      flex-direction: column;
    }

    .mobile-nav-list a {
      display: block;
      padding: 13px 10px;
      border-bottom: 1px solid var(--c-border);
      font-size: 16px;
      color: var(--c-text);
      font-weight: 600;
    }

    .mobile-nav-list a.active {
      color: var(--c-primary);
    }

    .command-layer {
      position: fixed;
      inset: 0;
      z-index: 1090;
      display: flex;
      align-items: flex-start;
      justify-content: center;
      padding: 13vh 20px 30px;
      background: rgba(8, 42, 34, .44);
      opacity: 0;
      pointer-events: none;
      transition: opacity .25s ease;
    }

    body.command-open .command-layer {
      opacity: 1;
      pointer-events: auto;
    }

    .command-panel {
      width: min(680px, 100%);
      background: #fff;
      border-radius: 14px;
      padding: 12px;
      box-shadow: 0 30px 80px rgba(8, 42, 34, .3);
      transform: translateY(-8px) scale(.99);
      transition: transform .3s ease;
    }

    body.command-open .command-panel {
      transform: translateY(0) scale(1);
    }

    .command-field {
      display: flex;
      align-items: center;
      gap: 12px;
      padding: 6px 10px 6px 16px;
      border: 1px solid var(--c-border);
      border-radius: 10px;
      background: var(--c-bg);
    }

    .command-field i {
      color: var(--c-primary);
    }

    .command-field input {
      flex: 1;
      min-width: 0;
      height: 46px;
      border: 0;
      background: transparent;
      color: var(--c-text);
      font-size: 16px;
    }

    .command-field input:focus {
      outline: none;
    }

    .command-close {
      border: 0;
      background: transparent;
      color: var(--c-text-muted);
      width: 36px;
      height: 36px;
      border-radius: 8px;
      font-size: 16px;
      cursor: pointer;
    }

    .command-close:hover {
      background: var(--c-primary-soft);
      color: var(--c-primary);
    }

    .command-label {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin: 16px 4px 8px;
      color: var(--c-text-muted);
      font-size: 13px;
    }

    .command-links {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 8px;
    }

    .command-link {
      display: flex;
      align-items: center;
      gap: 10px;
      padding: 11px 12px;
      border-radius: 9px;
      font-size: 15px;
      background: var(--c-bg);
      transition: background-color .2s ease, color .2s ease;
    }

    .command-link i {
      color: var(--c-accent);
      width: 18px;
      text-align: center;
    }

    .command-link:hover {
      background: var(--c-primary-soft);
      color: var(--c-primary);
    }

    .category-hero {
      position: relative;
      padding: 92px 0 74px;
      color: #fff;
      background: linear-gradient(105deg, rgba(8, 42, 34, .96), rgba(14, 79, 67, .9) 58%, rgba(14, 79, 67, .4)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
    }

    .breadcrumb-lite {
      display: flex;
      align-items: center;
      gap: 8px;
      color: rgba(255, 255, 255, .68);
      font-size: 13px;
      margin-bottom: 46px;
      letter-spacing: .03em;
    }

    .breadcrumb-lite a {
      color: rgba(255, 255, 255, .8);
    }

    .breadcrumb-lite a:hover {
      color: #fff;
    }

    .breadcrumb-lite .breadcrumb-sep {
      opacity: .6;
    }

    .hero-layout {
      display: grid;
      grid-template-columns: minmax(0, 1.2fr) minmax(320px, .8fr);
      gap: 54px;
      align-items: end;
    }

    .hero-kicker {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 18px;
      padding: 6px 13px;
      border: 1px solid rgba(255, 255, 255, .34);
      border-radius: 999px;
      color: rgba(255, 255, 255, .78);
      background: rgba(255, 255, 255, .06);
      font-size: 12px;
      letter-spacing: .14em;
    }

    .category-hero h1 {
      margin: 0 0 14px;
      font-size: clamp(44px, 6vw, 74px);
      font-weight: 800;
      line-height: 1.16;
      letter-spacing: .01em;
    }

    .hero-desc {
      max-width: 70ch;
      margin-bottom: 28px;
      color: rgba(255, 255, 255, .82);
      font-size: 16px;
      line-height: 1.8;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 14px;
    }

    .btn-light-solid {
      background: #fff;
      color: var(--c-primary-deep);
    }

    .btn-light-solid:hover {
      background: var(--c-primary-soft);
      color: var(--c-primary-deep);
    }

    .btn-ghost-light {
      border-color: rgba(255, 255, 255, .52);
      color: #fff;
    }

    .btn-ghost-light:hover {
      background: rgba(255, 255, 255, .1);
      border-color: rgba(255, 255, 255, .8);
      color: #fff;
    }

    .hero-index-card {
      border: 1px solid rgba(255, 255, 255, .16);
      background: rgba(255, 255, 255, .08);
      border-radius: 12px;
      padding: 22px 24px 18px;
    }

    .hero-index-title {
      display: flex;
      align-items: center;
      gap: 10px;
      color: #fff;
      font-weight: 600;
      font-size: 16px;
      margin-bottom: 14px;
    }

    .hero-index-title i {
      color: #f3c6a9;
    }

    .hero-index-list {
      list-style: none;
      display: grid;
      gap: 8px;
    }

    .hero-index-list li {
      display: grid;
      grid-template-columns: 34px 1fr;
      align-items: center;
      padding: 11px 14px;
      border: 1px solid rgba(255, 255, 255, .14);
      border-radius: 9px;
      background: rgba(255, 255, 255, .06);
    }

    .hero-index-list li span {
      font-family: var(--font-serif);
      color: rgba(255, 255, 255, .6);
      font-size: 13px;
    }

    .hero-index-list li strong {
      font-size: 15px;
      font-weight: 600;
    }

    .content-section {
      padding: 94px 0;
    }

    .section-overline {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: .14em;
      text-transform: uppercase;
      color: var(--c-accent);
      margin-bottom: 12px;
    }

    .section-overline i {
      color: var(--c-accent);
      font-size: 12px;
    }

    .section-heading {
      margin-bottom: 44px;
    }

    .section-heading h2,
    .section-title-block h2 {
      font-size: clamp(28px, 3vw, 38px);
      font-weight: 800;
      line-height: 1.3;
      margin: 0;
      letter-spacing: .01em;
    }

    .section-heading .heading-intro {
      margin: 0;
      color: var(--c-text-muted);
      font-size: 15px;
      line-height: 1.7;
      max-width: 480px;
      margin-left: auto;
    }

    @media (max-width: 991.98px) {
      .section-heading .heading-intro {
        margin-left: 0;
      }
    }

    .directory-section {
      background: var(--c-surface);
      border-bottom: 1px solid var(--c-border);
    }

    .directory-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      border-top: 1px solid var(--c-border);
    }

    .directory-item {
      position: relative;
      display: flex;
      flex-direction: column;
      gap: 12px;
      padding: 28px 24px 24px;
      border-right: 1px solid var(--c-border);
      border-bottom: 1px solid var(--c-border);
      background: transparent;
      transition: background-color .25s ease, transform .25s ease;
    }

    .directory-item:last-child {
      border-right: 0;
    }

    .directory-item:hover {
      background: var(--c-bg);
      transform: translateY(-2px);
    }

    .dir-no {
      font-family: var(--font-serif);
      font-size: 14px;
      color: var(--c-accent);
      letter-spacing: .08em;
    }

    .directory-item strong {
      display: block;
      font-size: 20px;
      font-weight: 700;
      letter-spacing: .02em;
    }

    .directory-item p {
      margin: 6px 0 0;
      color: var(--c-text-muted);
      font-size: 14px;
      line-height: 1.65;
    }

    .dir-arrow {
      margin-top: 6px;
      color: var(--c-primary);
      transition: transform .25s ease;
    }

    .directory-item:hover .dir-arrow {
      transform: translateX(6px);
    }

    .detail-list {
      border-top: 1px solid var(--c-border);
    }

    .detail-item {
      padding: 64px 0;
      border-bottom: 1px solid var(--c-border);
    }

    .detail-item:last-child {
      border-bottom: 0;
    }

    .detail-article {
      align-items: center;
    }

    .detail-media {
      position: relative;
      overflow: hidden;
      border-radius: 10px;
      box-shadow: var(--shadow-sm);
    }

    .detail-media img {
      width: 100%;
      aspect-ratio: 4 / 3;
      object-fit: cover;
      transition: transform .4s ease;
    }

    .detail-media:hover img {
      transform: scale(1.03);
    }

    .detail-index {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 10px;
      font-size: 13px;
      font-weight: 600;
      letter-spacing: .12em;
      color: var(--c-accent);
      font-family: var(--font-serif);
    }

    .detail-copy h3 {
      margin: 0 0 12px;
      font-size: clamp(21px, 2vw, 26px);
      font-weight: 700;
      line-height: 1.35;
    }

    .detail-copy p {
      color: var(--c-text-muted);
      font-size: 15px;
      line-height: 1.8;
      margin-bottom: 18px;
    }

    .detail-tags {
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      margin-bottom: 20px;
    }

    .detail-tags span {
      display: inline-flex;
      align-items: center;
      gap: 5px;
      background: var(--c-primary-soft);
      color: var(--c-primary-dark);
      border-radius: 999px;
      padding: 6px 12px;
      font-size: 13px;
      font-weight: 500;
    }

    .detail-tags i {
      font-size: 9px;
      color: var(--c-accent);
    }

    .text-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--c-primary);
      font-weight: 600;
      font-size: 14px;
    }

    .text-link i {
      transition: transform .25s ease;
    }

    .text-link:hover {
      color: var(--c-accent);
    }

    .text-link:hover i {
      transform: translateX(5px);
    }

    .usecase-section {
      background: var(--c-primary-deep);
      color: #fff;
    }

    .usecase-section .section-overline {
      color: #f3b68d;
    }

    .usecase-copy {
      padding-right: 40px;
    }

    .usecase-copy h2 {
      font-size: clamp(28px, 3vw, 38px);
      line-height: 1.3;
      margin-bottom: 18px;
    }

    .usecase-copy p {
      color: rgba(255, 255, 255, .68);
      line-height: 1.8;
    }

    .usecase-list {
      list-style: none;
    }

    .usecase-list li {
      display: flex;
      align-items: flex-start;
      gap: 20px;
      padding: 27px 0;
      border-bottom: 1px solid rgba(255, 255, 255, .14);
    }

    .usecase-list li:last-child {
      border-bottom: 0;
    }

    .use-no {
      font-family: var(--font-serif);
      color: #f3b68d;
      font-size: 15px;
      letter-spacing: .06em;
    }

    .usecase-list strong {
      display: block;
      font-size: 18px;
      margin-bottom: 6px;
    }

    .usecase-list p {
      margin: 0;
      color: rgba(255, 255, 255, .67);
      font-size: 15px;
      line-height: 1.75;
    }

    .faq-section {
      background: var(--c-bg);
    }

    .faq-side p {
      color: var(--c-text-muted);
      line-height: 1.75;
    }

    .faq-list {
      border-top: 1px solid var(--c-border);
    }

    .faq-item {
      border-bottom: 1px solid var(--c-border);
      padding: 24px 2px;
    }

    .faq-item summary {
      list-style: none;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      cursor: pointer;
      font-size: 17px;
      font-weight: 600;
      color: var(--c-text);
      line-height: 1.5;
      padding: 0;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary:hover {
      color: var(--c-primary);
    }

    .faq-mark {
      display: inline-flex;
      flex-shrink: 0;
      justify-content: center;
      align-items: center;
      width: 34px;
      height: 34px;
      border: 1px solid var(--c-border);
      border-radius: 50%;
      color: var(--c-primary);
      transition: transform .25s ease, background-color .25s ease, border-color .25s ease;
    }

    .faq-item[open] .faq-mark {
      transform: rotate(45deg);
      background: var(--c-primary);
      color: #fff;
      border-color: var(--c-primary);
    }

    .faq-item .faq-answer {
      padding-top: 14px;
      color: var(--c-text-muted);
      font-size: 15px;
      line-height: 1.8;
      max-width: 760px;
    }

    .cta-section {
      padding: 0 0 96px;
      background: var(--c-bg);
    }

    .cta-box {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 32px;
      background: var(--c-primary);
      color: #fff;
      border-radius: 14px;
      padding: 52px 56px;
      background-image: linear-gradient(120deg, rgba(255, 255, 255, .04), transparent 55%);
      box-shadow: var(--shadow-lg);
    }

    .cta-kicker {
      font-size: 13px;
      letter-spacing: .14em;
      text-transform: uppercase;
      color: #f3b68d;
      font-weight: 600;
    }

    .cta-box h2 {
      font-size: clamp(24px, 2.8vw, 36px);
      margin: 8px 0 10px;
      font-weight: 800;
      line-height: 1.3;
    }

    .cta-box p {
      margin: 0;
      color: rgba(255, 255, 255, .74);
      max-width: 620px;
      line-height: 1.75;
    }

    .cta-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      flex-shrink: 0;
    }

    .btn-accent {
      background: var(--c-accent);
      color: #fff;
      border-color: var(--c-accent);
    }

    .btn-accent:hover {
      background: #984321;
      border-color: #984321;
      color: #fff;
    }

    .btn-outline-cta {
      border-color: rgba(255, 255, 255, .5);
      color: #fff;
    }

    .btn-outline-cta:hover {
      background: rgba(255, 255, 255, .08);
      border-color: #fff;
      color: #fff;
    }

    .site-footer {
      background: var(--c-primary-deep);
      color: rgba(255, 255, 255, .68);
    }

    .footer-main {
      display: grid;
      grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
      gap: 48px;
      padding: 64px 0 56px;
    }

    .footer-brand-title {
      display: flex;
      align-items: center;
      gap: 8px;
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      margin-bottom: 14px;
    }

    .brand-badge {
      display: inline-flex;
      justify-content: center;
      align-items: center;
      width: 30px;
      height: 30px;
      background: #fff;
      border-radius: 8px;
      color: var(--c-primary-deep);
      font-family: var(--font-serif);
      font-size: 16px;
    }

    .footer-about {
      color: rgba(255, 255, 255, .55);
      font-size: 14px;
      line-height: 1.8;
      margin-bottom: 18px;
      max-width: 380px;
    }

    .search-inline {
      display: flex;
      align-items: center;
      gap: 9px;
      width: 100%;
      max-width: 310px;
      height: 42px;
      padding: 0 14px;
      border: 1px solid rgba(255, 255, 255, .16);
      border-radius: 999px;
      color: rgba(255, 255, 255, .46);
      font-size: 13px;
    }

    .search-inline i {
      color: rgba(255, 255, 255, .74);
      font-size: 13px;
    }

    .footer-col h4 {
      color: #fff;
      font-size: 16px;
      font-weight: 600;
      margin-bottom: 20px;
      letter-spacing: .02em;
    }

    .footer-col ul {
      list-style: none;
    }

    .footer-col ul li {
      margin-bottom: 9px;
    }

    .footer-col ul a {
      display: inline-flex;
      align-items: center;
      gap: 9px;
      color: rgba(255, 255, 255, .6);
      font-size: 14px;
      transition: color .25s ease, transform .25s ease;
    }

    .footer-col ul a:hover {
      color: #f3b68d;
      transform: translateX(3px);
    }

    .footer-col ul i {
      font-size: 6px;
      color: var(--c-accent);
    }

    .back-top {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      margin-top: 12px;
      border: 1px solid rgba(255, 255, 255, .2);
      border-radius: 50%;
      color: #fff;
      font-size: 15px;
    }

    .back-top:hover {
      background: #fff;
      color: var(--c-primary-deep);
    }

    .footer-bottom {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 18px;
      padding: 22px 0 26px;
      border-top: 1px solid rgba(255, 255, 255, .12);
      color: rgba(255, 255, 255, .45);
      font-size: 13px;
    }

    .footer-bottom span {
      display: inline-flex;
      align-items: center;
      gap: 8px;
    }

    @media (max-width: 1199.98px) {
      .footer-main {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 991.98px) {
      .main-nav {
        display: none;
      }

      .cmd-search {
        width: 44px;
        padding: 0;
        justify-content: center;
      }

      .cmd-search span,
      .cmd-search kbd {
        display: none;
      }

      .cmd-search i {
        margin: 0;
      }

      .mobile-toggle {
        display: inline-flex;
      }

      .mobile-nav {
        display: block;
      }

      .header-inner {
        gap: 10px;
      }

      .site-brand .brand-name {
        display: none;
      }

      .category-hero {
        padding: 72px 0 60px;
      }

      .hero-layout {
        grid-template-columns: 1fr;
        gap: 36px;
      }

      .directory-grid {
        grid-template-columns: repeat(2, 1fr);
      }

      .directory-item:nth-child(2n) {
        border-right: 0;
      }
    }

    @media (max-width: 767.98px) {
      .content-section {
        padding: 62px 0;
      }

      .category-hero h1 {
        font-size: 43px;
      }

      .category-hero {
        padding: 56px 0 48px;
      }

      .detail-item {
        padding: 40px 0;
      }

      .usecase-copy {
        padding-right: 0;
        margin-bottom: 14px;
      }

      .cta-section {
        padding-bottom: 60px;
      }

      .cta-box {
        flex-direction: column;
        padding: 36px 28px;
        align-items: flex-start;
      }

      .footer-main {
        grid-template-columns: 1fr;
        gap: 36px;
        padding: 52px 0 40px;
      }

      .footer-bottom {
        flex-direction: column;
        align-items: flex-start;
      }
    }

    @media (max-width: 575.98px) {
      .container-xl-large {
        padding-left: 18px;
        padding-right: 18px;
      }

      .site-header {
        height: 64px;
      }

      .mobile-nav {
        top: 64px;
      }

      .brand-symbol {
        width: 38px;
        height: 38px;
      }

      .header-actions .btn-header-login {
        width: 42px;
        padding: 0;
        justify-content: center;
        border-radius: 50%;
        font-size: 16px;
      }

      .header-actions .btn-header-login span {
        display: none;
      }

      .directory-grid {
        grid-template-columns: 1fr;
        border-top: 0;
      }

      .directory-item,
      .directory-item:nth-child(2n) {
        border-right: 0;
      }

      .hero-actions .btn {
        width: 100%;
      }

      .section-heading h2 {
        font-size: 28px;
        line-height: 1.35;
      }

      .faq-item summary {
        font-size: 15px;
        align-items: flex-start;
      }

      .command-links {
        grid-template-columns: 1fr;
      }

      .footer-bottom {
        font-size: 12px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      * {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
      }
    }

/* roulang page: category3 */
:root {
  --main: #0E4F43;
  --main-deep: #0A332B;
  --main-darker: #082A22;
  --main-light: #DCE9E2;
  --accent: #B7522B;
  --accent-soft: #F3DFD3;
  --bg: #F6F2EA;
  --white: #FFFFFF;
  --text: #1B201D;
  --text-soft: #5E6F65;
  --line: rgba(14, 79, 67, 0.14);
  --line-strong: rgba(14, 79, 67, 0.28);
  --shadow: 0 1px 2px rgba(8,42,34,.04), 0 8px 24px rgba(8,42,34,.06);
  --shadow-hover: 0 16px 40px rgba(8,42,34,.12);
  --radius-sm: 4px;
  --radius: 8px;
  --radius-lg: 12px;
  --font: "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
  --serif: "Playfair Display", Georgia, "Times New Roman", serif;
  --ease: cubic-bezier(.22,.61,.36,1);
  --container: 1280px;
  --space-section: 104px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--main);
  text-decoration: none;
  transition: color .25s var(--ease), background .25s var(--ease), border-color .25s var(--ease), box-shadow .25s var(--ease), opacity .25s var(--ease);
}

a:hover {
  color: var(--accent);
}

button {
  font-family: inherit;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

.container-xl-large {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

.serif-num {
  font-family: var(--serif);
  font-weight: 600;
  letter-spacing: 0;
}

h1,
h2,
h3,
h4,
h5,
h6 {
  margin: 0;
  font-weight: 700;
  color: var(--text);
  line-height: 1.3;
}

h1 {
  font-size: 52px;
  line-height: 1.15;
  letter-spacing: 0;
}

h2 {
  font-size: 34px;
  line-height: 1.2;
}

h3 {
  font-size: 20px;
  line-height: 1.45;
  font-weight: 700;
}

h4 {
  font-size: 17px;
  line-height: 1.5;
  font-weight: 600;
}

p {
  margin: 0;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

::selection {
  background: rgba(183, 82, 43, .18);
}

/* ============ Header Navigation ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1080;
  background: rgba(246, 242, 234, .88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), background .3s var(--ease), box-shadow .3s var(--ease);
}

.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 6px 30px rgba(8,42,34,.07);
}

.nav-shell {
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: relative;
  min-height: 76px;
  gap: 28px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
  border-radius: 8px;
}

.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 9px;
  background: var(--main);
  color: #fff;
  font-size: 19px;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(14, 79, 67, 0.18);
}

.brand-text {
  font-size: 18px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--main);
  white-space: nowrap;
}

.brand-text em {
  font-style: normal;
  color: #252A27;
  font-weight: 600;
}

.main-nav {
  display: flex;
  align-items: center;
}

.nav-list {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-list li {
  position: relative;
}

.main-nav-link {
  display: inline-block;
  padding: 9px 13px;
  font-size: 14.5px;
  font-weight: 500;
  color: #39413C;
  border-radius: 6px;
  position: relative;
  transition: color .25s var(--ease), background .25s var(--ease);
}

.main-nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 4px;
  height: 2px;
  background: var(--main);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform .3s var(--ease);
  border-radius: 2px;
}

.main-nav-link:hover {
  color: var(--main);
}

.main-nav-link:hover::after {
  transform: scaleX(1);
}

.main-nav-link.active {
  color: var(--main);
  font-weight: 700;
}

.main-nav-link.active::after {
  transform: scaleX(1);
}

.nav-right {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.search-trigger {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  width: 206px;
  height: 40px;
  border: 1px solid var(--line-strong);
  border-radius: 40px;
  padding: 0 14px;
  background: rgba(255,255,255,.65);
  color: var(--text-soft);
  font-size: 13px;
  cursor: pointer;
  transition: border-color .25s var(--ease), box-shadow .25s var(--ease), background .25s var(--ease);
}

.search-trigger i {
  font-size: 13px;
  color: var(--main);
}

.search-trigger .shortcut {
  margin-left: auto;
  font-size: 11px;
  color: var(--text-soft);
  border: 1px solid var(--line);
  border-radius: 5px;
  padding: 0 6px;
  line-height: 20px;
  background: var(--bg);
}

.search-trigger:hover {
  border-color: var(--main);
  background: #fff;
}

.header-actions {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.icon-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  border: 1px solid var(--line);
  color: var(--main);
  background: rgba(255,255,255,.7);
  transition: border-color .2s var(--ease), background .2s var(--ease), color .2s var(--ease), transform .2s var(--ease);
}

.icon-action:hover {
  color: var(--accent);
  border-color: rgba(183,82,43,.35);
}

.header-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 18px;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 700;
  background: var(--main);
  color: #fff;
  border: 1px solid var(--main);
  white-space: nowrap;
  transition: background .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease);
}

.header-btn:hover {
  background: var(--main-deep);
  border-color: var(--main-deep);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 8px 20px rgba(14,79,67,.18);
}

.mobile-menu-btn {
  display: none;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-strong);
  background: transparent;
  border-radius: 9px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  cursor: pointer;
}

.mobile-menu-btn span {
  display: block;
  width: 19px;
  height: 2px;
  background: var(--main);
  border-radius: 2px;
  transition: transform .3s var(--ease), opacity .3s var(--ease);
}

.mobile-menu-btn[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.mobile-menu-btn[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.mobile-menu-btn[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
  display: none;
  background: #FDFBF6;
  border-top: 1px solid var(--line);
  padding: 12px 0 20px;
}

.mobile-nav-inner {
  display: flex;
  flex-direction: column;
}

.mobile-nav-inner a {
  padding: 13px 22px;
  border-bottom: 1px solid rgba(14,79,67,.08);
  color: var(--text);
  font-weight: 500;
}

.mobile-nav-inner a:last-child {
  border-bottom: 0;
}

.mobile-nav-inner a.active {
  color: var(--main);
  font-weight: 700;
}

/* ============ Buttons / Badges / Tags ============ */
.btn-solid {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 26px;
  border-radius: 40px;
  font-weight: 700;
  font-size: 15px;
  border: 1px solid var(--main);
  background: var(--main);
  color: #fff;
  transition: background .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease), color .25s var(--ease);
}

.btn-solid:hover {
  background: var(--main-deep);
  border-color: var(--main-deep);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(14,79,67,.18);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 26px;
  border-radius: 40px;
  font-weight: 700;
  font-size: 15px;
  border: 1px solid rgba(255,255,255,.55);
  background: transparent;
  color: #fff;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
}

.btn-outline:hover {
  border-color: #fff;
  color: #fff;
  background: rgba(255,255,255,.16);
  transform: translateY(-1px);
}

.btn-light-solid {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 26px;
  border-radius: 40px;
  font-weight: 700;
  font-size: 15px;
  border: 1px solid var(--bg);
  background: var(--bg);
  color: var(--main-deep);
  transition: background .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}

.btn-light-solid:hover {
  background: #fff;
  color: var(--main);
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(0,0,0,.08);
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--main-light);
  color: var(--main);
  font-size: 12px;
  font-weight: 700;
  letter-spacing: .06em;
  border-radius: 40px;
  padding: 5px 12px;
  white-space: nowrap;
}

.tag-dark {
  background: rgba(255,255,255,.1);
  color: #E6F0EA;
  border: 1px solid rgba(255,255,255,.14);
}

.accent-dot {
  display: inline-block;
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  margin-right: 8px;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 28px;
  margin-bottom: 42px;
}

.section-head-copy p {
  margin-top: 14px;
  max-width: 620px;
  color: var(--text-soft);
  font-size: 15px;
}

.section-index {
  display: block;
  font-family: var(--serif);
  font-size: 13px;
  color: var(--accent);
  letter-spacing: .16em;
  margin-bottom: 10px;
  text-transform: uppercase;
}

/* ============ Category Hero ============ */
.cat-hero {
  position: relative;
  min-height: 430px;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  display: flex;
  align-items: center;
  isolation: isolate;
  color: #fff;
}

.cat-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(8,42,34,.96) 0%, rgba(10,51,43,.88) 48%, rgba(8,42,34,.55) 100%);
  z-index: -1;
}

.hero-breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
  color: rgba(255,255,255,.68);
  font-size: 13px;
}

.hero-breadcrumb a {
  color: rgba(255,255,255,.78);
}

.hero-breadcrumb a:hover {
  color: #fff;
}

.hero-breadcrumb span {
  opacity: .7;
}

.cat-hero-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 13px;
  border-radius: 40px;
  border: 1px solid rgba(255,255,255,.22);
  background: rgba(255,255,255,.08);
  color: #E7F1EC;
  font-size: 12px;
  letter-spacing: .08em;
  margin-bottom: 20px;
}

.cat-hero h1 {
  color: #fff;
  max-width: 720px;
  font-size: 50px;
}

.cat-hero-description {
  margin-top: 18px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(255,255,255,.78);
  max-width: 650px;
}

.cat-hero-actions {
  margin-top: 30px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
}

.hero-metric-row {
  margin-top: 34px;
  display: flex;
  flex-wrap: wrap;
  gap: 30px;
}

.hero-metric {
  display: flex;
  align-items: center;
  gap: 10px;
  color: rgba(255,255,255,.85);
  font-size: 13px;
}

.hero-metric i {
  color: #F1C2A7;
}

/* ============ Page section spacing ============ */
.page-section {
  padding: var(--space-section) 0;
}

.bg-soft {
  background: #F0EBE0;
}

.bg-white-panel {
  background: var(--white);
}

.section-head h2 {
  max-width: 700px;
}

/* ============ Guide Magazine ============ */
.guide-magazine {
  padding: 110px 0 96px;
}

.magazine-layout {
  display: grid;
  grid-template-columns: minmax(0, 7.2fr) minmax(0, 4.8fr);
  gap: 52px;
  align-items: start;
}

.mag-main {
  min-width: 0;
}

.mag-side {
  position: sticky;
  top: 110px;
}

.feature-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 1fr);
  box-shadow: var(--shadow);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.feature-media {
  position: relative;
  min-height: 310px;
  background: var(--main-light);
}

.feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  position: absolute;
  inset: 0;
}

.feature-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8,42,34,.06), transparent);
  pointer-events: none;
}

.feature-body {
  padding: 34px 32px;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  justify-content: center;
}

.feature-body h3 {
  margin-top: 18px;
  font-size: 24px;
  line-height: 1.35;
}

.feature-body p {
  margin-top: 16px;
  color: var(--text-soft);
  font-size: 15px;
}

.feature-list {
  margin-top: 18px;
  display: flex;
  flex-direction: column;
  gap: 9px;
}

.feature-list li {
  display: flex;
  gap: 9px;
  align-items: flex-start;
  color: var(--text-soft);
  font-size: 14px;
}

.feature-list li i {
  color: var(--main);
  margin-top: 5px;
  font-size: 13px;
}

.arrow-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: 22px;
  font-weight: 700;
  font-size: 14px;
  color: var(--main);
  border-bottom: 1px solid transparent;
}

.arrow-link i {
  transition: transform .25s var(--ease);
}

.arrow-link:hover {
  color: var(--accent);
}

.arrow-link:hover i {
  transform: translateX(4px);
}

.sub-duo {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
  margin-top: 24px;
}

.sub-guide-card {
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 30px 28px;
  box-shadow: 0 1px 2px rgba(8,42,34,.03);
  transition: border-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}

.sub-guide-card:hover {
  border-color: rgba(14,79,67,.38);
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
}

.sub-guide-icon {
  width: 46px;
  height: 46px;
  border-radius: 13px;
  background: var(--main-light);
  color: var(--main);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.sub-guide-card .tag {
  margin-left: 16px;
}

.sub-guide-card h4 {
  margin-top: 18px;
  font-size: 18px;
}

.sub-guide-card p {
  margin-top: 10px;
  color: var(--text-soft);
  font-size: 14px;
  line-height: 1.72;
}

.sub-guide-card .arrow-link {
  margin-top: 12px;
  font-size: 13px;
}

/* Side list */
.side-card {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 30px;
}

.side-card-title {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--line);
}

.side-card-title .serif-num {
  font-size: 13px;
  color: var(--accent);
  letter-spacing: .12em;
  text-transform: uppercase;
}

.side-card-title h3 {
  font-size: 19px;
}

.side-list {
  margin-top: 8px;
}

.side-list-item {
  padding: 20px 2px;
  border-bottom: 1px solid var(--line);
  display: grid;
  grid-template-columns: auto 1fr;
  gap: 14px;
}

.side-list-item:last-child {
  border-bottom: 0;
  padding-bottom: 6px;
}

.side-item-no {
  font-family: var(--serif);
  font-size: 17px;
  color: var(--accent);
  line-height: 1.4;
}

.side-item-body h4 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 4px;
}

.side-item-body p {
  font-size: 13px;
  color: var(--text-soft);
  margin-bottom: 8px;
}

.side-item-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
}

.mini-tag {
  font-size: 11px;
  display: inline-flex;
  align-items: center;
  background: var(--bg);
  border: 1px solid var(--line);
  color: var(--text-soft);
  border-radius: 40px;
  padding: 2px 9px;
}

.side-note {
  margin-top: 26px;
  background: var(--main-light);
  border-radius: var(--radius);
  padding: 20px 20px 22px;
  display: flex;
  gap: 14px;
}

.side-note i {
  color: var(--main);
  font-size: 20px;
  margin-top: 2px;
}

.side-note p {
  font-size: 13px;
  color: var(--main-deep);
  line-height: 1.7;
}

/* ============ Steps ============ */
.steps-dark {
  background: var(--main-darker);
  color: #fff;
  padding: 110px 0;
  position: relative;
  overflow: hidden;
}

.steps-dark::before {
  content: "";
  position: absolute;
  right: -180px;
  top: -140px;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: rgba(14,79,67,.35);
  filter: blur(10px);
}

.steps-dark .section-index {
  color: #DEA682;
}

.steps-dark h2 {
  color: #fff;
}

.steps-dark .section-head-copy p {
  color: rgba(255,255,255,.68);
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  counter-reset: step;
}

.step-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.12);
  border-radius: var(--radius);
  padding: 34px 28px;
  position: relative;
  transition: background .3s var(--ease), transform .3s var(--ease), border-color .3s var(--ease);
  backdrop-filter: blur(4px);
}

.step-card:hover {
  background: rgba(255,255,255,.1);
  transform: translateY(-5px);
  border-color: rgba(255,255,255,.26);
}

.step-number {
  font-family: var(--serif);
  font-size: 38px;
  font-weight: 600;
  color: rgba(220,233,226,.9);
  display: block;
  line-height: 1;
}

.step-card h3 {
  color: #fff;
  font-size: 18px;
  margin-top: 22px;
}

.step-card p {
  margin-top: 10px;
  color: rgba(255,255,255,.65);
  font-size: 14px;
}

.step-card i {
  color: #F0B99B;
  font-size: 15px;
  margin-top: 20px;
}

/* ============ Detail Split ============ */
.detail-split {
  padding: 110px 0;
}

.detail-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  min-height: 300px;
  height: 100%;
  box-shadow: var(--shadow);
}

.detail-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.detail-copy {
  padding: 20px 42px 20px 0;
}

.detail-copy h2 {
  margin-bottom: 20px;
}

.detail-copy p {
  color: var(--text-soft);
  font-size: 15px;
}

.detail-list {
  margin-top: 24px;
  border-top: 1px solid var(--line);
}

.detail-list li {
  display: flex;
  gap: 16px;
  align-items: flex-start;
  padding: 17px 0;
  border-bottom: 1px solid var(--line);
}

.detail-list .detail-no {
  font-family: var(--serif);
  color: var(--accent);
  font-size: 15px;
  width: 28px;
  flex-shrink: 0;
  padding-top: 4px;
}

.detail-list h4 {
  font-size: 16px;
}

.detail-list p {
  color: var(--text-soft);
  font-size: 14px;
  margin-top: 4px;
}

/* ============ Category Entry ============ */
.category-entry {
  padding: 112px 0;
  background: var(--bg);
}

.entry-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 18px;
}

.entry-card {
  border: 1px solid var(--line);
  background: #fff;
  border-radius: var(--radius);
  padding: 28px 24px 26px;
  position: relative;
  overflow: hidden;
  transition: border-color .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease);
}

.entry-card::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: var(--main);
  transform: scaleY(0);
  transition: transform .3s var(--ease);
}

.entry-card:hover {
  border-color: rgba(14,79,67,.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.entry-card:hover::before {
  transform: scaleY(1);
}

.entry-card .serif-num {
  font-size: 13px;
  color: var(--accent);
  letter-spacing: .1em;
}

.entry-card h3 {
  margin-top: 16px;
  font-size: 19px;
}

.entry-card p {
  margin-top: 10px;
  font-size: 13px;
  color: var(--text-soft);
}

.entry-arrow {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  margin-top: 18px;
  font-size: 13px;
  font-weight: 700;
  color: var(--main);
}

.entry-card:hover .entry-arrow i {
  transform: translateX(4px);
}

.entry-arrow i {
  transition: transform .25s var(--ease);
}

/* ============ CTA ============ */
.cta-plain {
  background: #fff;
  padding: 100px 0;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.cta-box {
  background: linear-gradient(120deg, #0A332B 0%, #0E4F43 100%);
  border-radius: 18px;
  padding: 52px 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.cta-box::after {
  content: "";
  position: absolute;
  width: 320px;
  height: 320px;
  right: -90px;
  top: -90px;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: 50%;
  box-shadow: 0 0 0 45px rgba(255,255,255,.05), 0 0 0 90px rgba(255,255,255,.03);
  pointer-events: none;
}

.cta-box h2 {
  color: #fff;
  font-size: 30px;
  line-height: 1.3;
}

.cta-box p {
  margin-top: 12px;
  color: rgba(255,255,255,.72);
  max-width: 520px;
  font-size: 15px;
}

.cta-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  flex-shrink: 0;
  position: relative;
  z-index: 2;
}

/* ============ Footer ============ */
.site-footer {
  background: var(--main-darker);
  color: rgba(255,255,255,.72);
  padding: 80px 0 0;
  font-size: 14px;
}

.site-footer a {
  color: rgba(255,255,255,.72);
}

.site-footer a:hover {
  color: #F1C2A7;
}

.footer-main {
  display: grid;
  grid-template-columns: 1.4fr .8fr .8fr 1.1fr;
  gap: 50px;
  padding-bottom: 56px;
}

.footer-brand-col {
  max-width: 340px;
}

.footer-brand-title {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
}

.footer-brand-title .brand-badge {
  width: 38px;
  height: 38px;
  background: var(--main);
  border-radius: 10px;
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.footer-brand-title span {
  color: #E8F0EC;
}

.footer-brand-title span:last-child {
  color: #8FA69D;
  font-weight: 600;
}

.footer-about {
  margin-top: 16px;
  line-height: 1.75;
  color: rgba(255,255,255,.55);
}

.footer-col h4 {
  color: #DFEBE5;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 20px;
  letter-spacing: .02em;
}

.footer-col ul li {
  margin-bottom: 11px;
}

.footer-col ul li i {
  font-size: 5px;
  color: var(--accent);
  margin-right: 12px;
  vertical-align: middle;
}

.back-top {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,.28);
  color: #fff;
  margin-top: 18px;
  transition: background .25s var(--ease), color .25s var(--ease), border-color .25s var(--ease), transform .25s var(--ease);
}

.back-top:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: #fff;
  transform: translateY(-3px);
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 26px 0 28px;
  font-size: 13px;
  color: rgba(255,255,255,.44);
}

.footer-bottom span {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-bottom span::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #72B49A;
}

/* ============ Responsive ============ */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: .01ms !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
  }
}

@media (max-width: 1199.98px) {
  .container-xl-large {
    padding-left: 22px;
    padding-right: 22px;
  }

  .search-trigger {
    width: 170px;
  }

  .entry-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .steps-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 14px;
  }

  .magazine-layout {
    gap: 36px;
  }

  .feature-card {
    grid-template-columns: 1fr;
  }

  .feature-media {
    min-height: 240px;
    position: relative;
  }
}

@media (max-width: 991.98px) {
  .main-nav-list,
  .nav-right .desktop-only,
  .search-trigger {
    display: none;
  }

  .mobile-menu-btn {
    display: inline-flex;
  }

  .mobile-nav.open {
    display: block;
  }

  .nav-shell {
    min-height: 68px;
    gap: 12px;
  }

  .brand-text {
    font-size: 16px;
  }

  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .magazine-layout {
    grid-template-columns: 1fr;
  }

  .mag-side {
    position: static;
  }

  .cat-hero h1 {
    font-size: 38px;
  }

  .detail-copy {
    padding: 28px 0 0;
  }

  .cta-box {
    flex-direction: column;
    align-items: flex-start;
    padding: 42px 34px;
  }
}

@media (max-width: 767.98px) {
  :root {
    --space-section: 64px;
  }

  h1 {
    font-size: 34px;
  }

  h2 {
    font-size: 26px;
  }

  .cat-hero {
    min-height: 500px;
  }

  .cat-hero h1 {
    font-size: 32px;
  }

  .cat-hero-description {
    font-size: 15px;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .feature-body {
    padding: 26px 24px;
  }

  .sub-duo {
    grid-template-columns: 1fr;
  }

  .steps-grid {
    grid-template-columns: 1fr;
  }

  .entry-grid {
    grid-template-columns: 1fr;
  }

  .footer-main {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .footer-bottom {
    flex-direction: column;
  }

  .cta-box {
    padding: 32px 24px;
    border-radius: 14px;
  }

  .cta-box h2 {
    font-size: 23px;
  }

  .side-card {
    padding: 22px;
  }

  .header-btn {
    padding: 0 14px;
    font-size: 13px;
  }

  .brand-icon {
    width: 34px;
    height: 34px;
    font-size: 17px;
  }

  .brand-text {
    font-size: 15px;
  }
}

@media (max-width: 575.98px) {
  .container-xl-large {
    padding-left: 18px;
    padding-right: 18px;
  }

  .brand-text em {
    display: block;
    font-size: 12px;
    line-height: 1.1;
    margin-top: -2px;
  }

  .cat-hero {
    padding: 64px 0;
  }

  .cat-hero-label {
    font-size: 11px;
  }

  .hero-metric-row {
    gap: 18px;
  }

  .detail-list li {
    gap: 10px;
  }

  .btn-solid,
  .btn-outline {
    min-height: 44px;
    padding: 0 18px;
    font-size: 14px;
  }
}

/* roulang page: category2 */
:root {
  --green-deep: #0E4F43;
  --green-darkest: #082A22;
  --green-night: #0A332B;
  --green-soft: #DCE9E2;
  --accent: #B7522B;
  --bg-warm: #F6F2EA;
  --bg-white: #FFFFFF;
  --text-main: #1B201D;
  --text-secondary: #5E6F65;
  --line: rgba(14, 79, 67, .14);
  --line-strong: rgba(14, 79, 67, .24);
  --radius: 8px;
  --radius-btn: 6px;
  --shadow-soft: 0 1px 2px rgba(8, 42, 34, .04), 0 8px 24px rgba(8, 42, 34, .06);
  --shadow-hover: 0 16px 40px rgba(8, 42, 34, .12);
  --transition: all .3s ease;
}
* {
  box-sizing: border-box;
}
html {
  scroll-behavior: smooth;
}
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Source Han Sans CN", "Noto Sans SC", sans-serif;
  background: var(--bg-warm);
  color: var(--text-main);
  line-height: 1.75;
  font-size: 16px;
}
body.menu-open {
  overflow: hidden;
}
a {
  color: inherit;
  text-decoration: none;
  transition: var(--transition);
}
img {
  max-width: 100%;
  display: block;
}
ul, ol {
  margin: 0;
  padding: 0;
  list-style: none;
}
button, input {
  font-family: inherit;
}
button {
  cursor: pointer;
}
:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}
.container-xl-large {
  width: min(1280px, 100% - 48px);
  margin-inline: auto;
}
.section-block {
  padding: 100px 0;
}
.section-head {
  max-width: 720px;
  margin-bottom: 44px;
}
.eyebrow-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 12px;
  letter-spacing: .1em;
  color: var(--green-deep);
  font-weight: 600;
  margin-bottom: 12px;
  text-transform: uppercase;
}
.eyebrow-label::before {
  content: "";
  width: 22px;
  height: 2px;
  background: var(--accent);
  flex: 0 0 auto;
}
.section-title {
  font-size: clamp(30px, 3.2vw, 42px);
  font-weight: 700;
  letter-spacing: .01em;
  line-height: 1.25;
  margin: 0 0 16px;
  color: var(--text-main);
}
.section-lead {
  font-size: 15px;
  color: var(--text-secondary);
  margin: 0;
}
.text-green {
  color: var(--green-deep);
}
.overline-num {
  font-family: Georgia, "Times New Roman", serif;
  color: var(--accent);
  font-size: 13px;
  letter-spacing: .08em;
}
/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1080;
  background: rgba(246, 242, 234, .88);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: box-shadow .3s ease, border-color .3s ease;
}
.site-header.is-scrolled {
  border-bottom-color: var(--line);
  box-shadow: 0 8px 30px rgba(8, 42, 34, .06);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  gap: 28px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  line-height: 1.2;
}
.brand-icon {
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: var(--green-deep);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: Georgia, serif;
  font-size: 20px;
  font-weight: 700;
  box-shadow: 0 6px 16px rgba(14, 79, 67, .2);
}
.brand-text {
  color: var(--text-main);
  font-size: 18px;
  white-space: nowrap;
  font-weight: 500;
}
.brand-text strong {
  color: var(--green-deep);
  font-weight: 700;
}
.brand-text span {
  color: #303A35;
  font-weight: 500;
}
.main-nav {
  margin-left: auto;
}
.main-nav-list {
  display: flex;
  align-items: center;
  gap: 28px;
}
.main-nav-list li {
  margin: 0;
}
.main-nav-link {
  position: relative;
  display: inline-block;
  padding: 10px 2px;
  font-size: 15px;
  color: var(--text-main);
  font-weight: 500;
}
.main-nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 2px;
  width: 0;
  height: 2px;
  background: var(--green-deep);
  transition: width .28s ease;
}
.main-nav-link:hover {
  color: var(--green-deep);
}
.main-nav-link:hover::after {
  width: 100%;
}
.main-nav-link.active {
  color: var(--green-deep);
}
.main-nav-link.active::before {
  content: "";
  position: absolute;
  right: -9px;
  bottom: 4px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.command-search {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 220px;
  height: 38px;
  padding: 0 12px;
  background: rgba(255, 255, 255, .72);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 13px;
  cursor: pointer;
  transition: var(--transition);
}
.command-search:hover {
  background: #fff;
  border-color: var(--green-deep);
}
.command-search .shortcut {
  margin-left: auto;
  border: 1px solid var(--line);
  background: var(--bg-warm);
  border-radius: 4px;
  padding: 0 7px;
  font-size: 12px;
  line-height: 22px;
  color: var(--text-secondary);
}
.icon-cta {
  width: 38px;
  height: 38px;
  border: 1px solid var(--line-strong);
  background: transparent;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--green-deep);
  font-size: 16px;
  transition: var(--transition);
}
.icon-cta:hover {
  background: var(--green-soft);
  border-color: var(--green-deep);
  color: var(--green-deep);
}
.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  height: 38px;
  padding: 0 18px;
  border-radius: 999px;
  background: var(--green-deep);
  color: #fff;
  font-size: 14px;
  font-weight: 500;
  border: 1px solid var(--green-deep);
  transition: var(--transition);
  white-space: nowrap;
}
.header-cta:hover {
  background: var(--green-night);
  border-color: var(--green-night);
  color: #fff;
  transform: translateY(-1px);
}
.mobile-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--line-strong);
  border-radius: 6px;
  color: var(--green-deep);
  font-size: 19px;
}
.mobile-panel {
  display: none;
  position: fixed;
  top: 72px;
  left: 0;
  right: 0;
  bottom: 0;
  z-index: 1200;
  background: var(--bg-warm);
  padding: 30px 24px 50px;
  overflow-y: auto;
}
.mobile-panel.open {
  display: block;
}
.mobile-nav-list {
  border-top: 1px solid var(--line);
  margin-top: 10px;
}
.mobile-nav-list a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 4px;
  border-bottom: 1px solid var(--line);
  font-size: 17px;
  font-weight: 500;
}
.mobile-nav-list a i {
  color: var(--green-deep);
  font-size: 14px;
}
/* ===== Command modal ===== */
.command-modal {
  position: fixed;
  inset: 0;
  z-index: 1300;
}
.command-modal[hidden] {
  display: none;
}
.command-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(8, 42, 34, .46);
  backdrop-filter: blur(3px);
}
.command-panel {
  position: relative;
  width: min(620px, calc(100% - 32px));
  margin: 9vh auto 0;
  background: #fff;
  border-radius: 14px;
  box-shadow: 0 28px 80px rgba(8, 42, 34, .28);
  overflow: hidden;
}
.command-panel-top {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 20px;
  border-bottom: 1px solid var(--line);
  color: var(--text-secondary);
}
.command-panel-top input {
  flex: 1;
  min-width: 0;
  border: 0;
  outline: none;
  font-size: 16px;
  background: transparent;
  color: var(--text-main);
}
.command-panel-top kbd {
  font-family: inherit;
  background: var(--bg-warm);
  border: 1px solid var(--line-strong);
  border-radius: 4px;
  font-size: 12px;
  padding: 2px 8px;
  color: var(--text-secondary);
}
.command-body {
  padding: 14px 20px 20px;
  max-height: 54vh;
  overflow-y: auto;
}
.command-group-label {
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--text-secondary);
  font-weight: 600;
  text-transform: uppercase;
  padding: 8px 0 6px;
}
.command-link {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 10px;
  border-radius: 6px;
  color: var(--text-main);
  font-size: 15px;
}
.command-link i {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--green-soft);
  color: var(--green-deep);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
}
.command-link:hover {
  background: var(--bg-warm);
  color: var(--green-deep);
}
.command-link .go {
  margin-left: auto;
  font-size: 13px;
  color: var(--text-secondary);
}
.command-link[hidden] {
  display: none;
}
/* ===== Category hero ===== */
.category-hero {
  background:
    linear-gradient(108deg, rgba(8, 42, 34, .94) 0%, rgba(14, 79, 67, .84) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 84px 0 90px;
  color: #fff;
  border-bottom: 4px solid var(--green-deep);
}
.breadcrumb-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(255, 255, 255, .75);
  margin-bottom: 48px;
}
.breadcrumb-nav a {
  color: rgba(255, 255, 255, .9);
}
.breadcrumb-nav a:hover {
  color: #fff;
}
.breadcrumb-nav i {
  font-size: 10px;
  color: rgba(255, 255, 255, .55);
}
.hero-title {
  font-size: clamp(36px, 5.4vw, 63px);
  font-weight: 800;
  line-height: 1.18;
  margin: 0 0 20px;
  letter-spacing: .01em;
}
.hero-title .thin-text {
  display: block;
  font-size: .48em;
  font-weight: 500;
  color: rgba(255, 255, 255, .88);
  margin-top: 16px;
  letter-spacing: .02em;
}
.hero-desc {
  max-width: 640px;
  font-size: 16px;
  line-height: 1.85;
  color: rgba(255, 255, 255, .88);
  margin: 0;
}
.hero-desc strong {
  color: #fff;
  font-weight: 600;
}
.hero-footnote {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  margin-top: 34px;
}
.hero-footnote-icon {
  color: var(--accent);
  margin-right: 7px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 34px;
}
.btn-hero-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  border: 1px solid var(--accent);
  color: #fff;
  padding: 11px 24px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 15px;
  transition: var(--transition);
}
.btn-hero-primary:hover {
  background: #9c451f;
  border-color: #9c451f;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(183, 82, 43, .2);
  color: #fff;
}
.btn-hero-second {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  border: 1px solid rgba(255, 255, 255, .6);
  color: #fff;
  padding: 11px 26px;
  border-radius: 6px;
  font-weight: 500;
  font-size: 15px;
  transition: var(--transition);
}
.btn-hero-second:hover {
  background: rgba(255, 255, 255, .1);
  border-color: #fff;
  color: #fff;
}
/* ===== Topic index ===== */
.topic-index {
  background: var(--bg-warm);
  padding: 80px 0 88px;
  border-bottom: 1px solid var(--line);
}
.topic-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 16px;
  margin-top: 36px;
}
.topic-link {
  position: relative;
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 22px 18px 18px;
  transition: var(--transition);
  height: 100%;
}
.topic-link:hover {
  border-color: var(--green-deep);
  box-shadow: var(--shadow-soft);
  transform: translateY(-3px);
}
.topic-link .topic-no {
  font-family: Georgia, "Times New Roman", serif;
  font-style: normal;
  font-size: 12px;
  color: var(--accent);
  letter-spacing: .08em;
  font-weight: 700;
}
.topic-link h3 {
  font-size: 16px;
  font-weight: 600;
  margin: 12px 0 4px;
  color: var(--text-main);
}
.topic-link p {
  margin: 0;
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.6;
}
/* ===== Timeline / journey ===== */
.journey-section {
  padding: 104px 0 110px;
  background: #fff;
  overflow: hidden;
}
.journey-intro-text {
  font-size: 15px;
  color: var(--text-secondary);
}
.journey-list {
  position: relative;
  margin-top: 56px;
}
.journey-list::before {
  content: "";
  position: absolute;
  left: 52px;
  top: 26px;
  bottom: 38px;
  width: 2px;
  background: repeating-linear-gradient(to bottom, var(--line-strong) 0 8px, transparent 8px 16px);
}
.journey-item {
  position: relative;
  padding-left: 104px;
  margin-bottom: 84px;
}
.journey-item:last-child {
  margin-bottom: 0;
}
.journey-no {
  position: absolute;
  left: 20px;
  top: 26px;
  width: 64px;
  height: 64px;
  border-radius: 50%;
  background: #fff;
  border: 1px solid var(--line-strong);
  box-shadow: var(--shadow-soft);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: Georgia, "Times New Roman", serif;
  font-size: 20px;
  font-weight: 700;
  color: var(--green-deep);
  z-index: 2;
}
.journey-card {
  background: var(--bg-white);
  border: 1px solid var(--line);
  border-radius: 10px;
  overflow: hidden;
  transition: var(--transition);
  box-shadow: var(--shadow-soft);
}
.journey-card:hover {
  box-shadow: var(--shadow-hover);
  border-color: var(--green-deep);
}
.journey-card .row {
  --bs-gutter-x: 0;
  align-items: stretch;
}
.journey-media {
  min-height: 280px;
  background: var(--green-soft);
  position: relative;
  overflow: hidden;
}
.journey-media img {
  width: 100%;
  height: 100%;
  min-height: 280px;
  object-fit: cover;
  aspect-ratio: 4 / 3;
  transition: transform .5s ease;
}
.journey-card:hover .journey-media img {
  transform: scale(1.03);
}
.journey-copy {
  padding: clamp(28px, 4vw, 52px);
}
.journey-copy .step-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  letter-spacing: .08em;
  color: var(--accent);
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.journey-copy h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 14px;
  line-height: 1.4;
}
.journey-copy p {
  font-size: 15px;
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}
.journey-copy ul {
  margin-top: 4px;
}
.journey-copy ul li {
  position: relative;
  padding-left: 22px;
  margin-bottom: 8px;
  font-size: 14px;
  color: var(--text-main);
  line-height: 1.7;
}
.journey-copy ul li::before {
  content: "";
  position: absolute;
  left: 3px;
  top: 10px;
  width: 7px;
  height: 7px;
  background: var(--accent);
  transform: rotate(45deg);
  opacity: .8;
}
.journey-note {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(220, 233, 226, .68);
  border-left: 2px solid var(--green-deep);
  padding: 13px 18px;
  border-radius: 0 6px 6px 0;
  font-size: 14px;
  color: var(--text-main);
  margin-top: 24px;
}
.journey-note i {
  color: var(--accent);
}
.journey-card.flipped .journey-media {
  order: 2;
}
.journey-card.flipped .journey-copy {
  order: 1;
}
/* ===== Category suggestions ===== */
.more-categories {
  background: var(--bg-warm);
  border-top: 1px solid var(--line);
  padding: 96px 0 104px;
}
.more-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 30px;
}
.more-item {
  position: relative;
  display: block;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 30px 34px;
  overflow: hidden;
  transition: var(--transition);
}
.more-item:hover {
  border-color: var(--green-deep);
  box-shadow: var(--shadow-soft);
  transform: translateY(-2px);
}
.more-item .item-name {
  font-size: 21px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 8px;
}
.more-item .item-name i {
  color: var(--green-deep);
  font-size: 16px;
  margin-left: 10px;
  transition: transform .3s ease;
}
.more-item:hover .item-name i {
  transform: translateX(4px);
}
.more-item p {
  margin: 0;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
}
/* ===== FAQ ===== */
.faq-section {
  background: #fff;
  padding: 100px 0;
}
.faq-layout {
  display: grid;
  grid-template-columns: 5fr 8fr;
  gap: 56px;
}
.faq-aside .faq-helper {
  margin-top: 26px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--bg-warm);
  padding: 22px;
}
.faq-helper p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin: 0 0 12px;
}
.faq-helper a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--green-deep);
  font-weight: 600;
  font-size: 14px;
}
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-item + .faq-item {
  margin-top: 0;
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 22px 4px;
  font-size: 17px;
  font-weight: 600;
  line-height: 1.5;
  color: var(--text-main);
}
.faq-question .faq-icon {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 16px;
  transition: transform .28s ease;
}
.faq-item details[open] .faq-question .faq-icon {
  transform: rotate(45deg);
  background: var(--bg-warm);
}
.faq-answer {
  padding: 0 4px 24px 22px;
  color: var(--text-secondary);
  font-size: 15px;
  cursor: pointer;
  max-width: 610px;
  line-height: 1.8;
}
summary {
  list-style: none;
}
summary::-webkit-details-marker {
  display: none;
}
/* ===== Bottom CTA ===== */
.bottom-cta {
  background:
    linear-gradient(125deg, rgba(8, 42, 34, .95), rgba(14, 79, 67, .92)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  color: #fff;
  padding: 76px 0;
}
.bottom-cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  flex-wrap: wrap;
}
.bottom-cta h2 {
  font-size: 30px;
  font-weight: 700;
  margin: 0 0 8px;
}
.bottom-cta p {
  color: rgba(255, 255, 255, .78);
  margin: 0;
  font-size: 15px;
}
.cta-group {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.btn-light-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: #fff;
  color: var(--green-deep);
  padding: 11px 24px;
  border-radius: 6px;
  font-weight: 600;
  font-size: 15px;
  border: 1px solid #fff;
  transition: var(--transition);
}
.btn-light-primary:hover {
  background: var(--green-soft);
  border-color: var(--green-soft);
  color: var(--green-deep);
  transform: translateY(-1px);
}
.btn-border-light {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .6);
  padding: 11px 24px;
  border-radius: 6px;
  font-weight: 500;
  font-size: 15px;
  transition: var(--transition);
}
.btn-border-light:hover {
  background: rgba(255, 255, 255, .1);
  border-color: #fff;
  color: #fff;
}
/* ===== Footer ===== */
.site-footer {
  background: var(--green-darkest);
  color: rgba(255, 255, 255, .8);
  padding: 72px 0 30px;
}
.footer-main {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 50px;
  padding-bottom: 48px;
}
.footer-brand-title {
  display: flex;
  align-items: center;
  gap: 6px;
  color: #fff;
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 16px;
}
.footer-brand-title .brand-badge {
  width: 28px;
  height: 28px;
  border-radius: 6px;
  background: var(--accent);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: Georgia, serif;
  font-weight: 700;
  font-size: 16px;
  margin-right: 6px;
}
.footer-brand-title span:first-of-type {
  color: rgba(255, 255, 255, .9);
}
.footer-about {
  font-size: 13px;
  line-height: 1.8;
  color: rgba(255, 255, 255, .62);
  max-width: 320px;
  margin-bottom: 18px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: .05em;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: rgba(255, 255, 255, .66);
  font-size: 14px;
  transition: var(--transition);
}
.footer-col ul a i {
  color: var(--accent);
  font-size: 5px;
}
.footer-col ul a:hover {
  color: #fff;
  text-decoration: underline;
  text-underline-offset: 4px;
}
.footer-col p {
  font-size: 13px;
  color: rgba(255, 255, 255, .62);
  line-height: 1.75;
  margin-bottom: 12px;
}
.search-inline {
  display: flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .08);
  border: 1px solid rgba(255, 255, 255, .1);
  border-radius: 6px;
  padding: 9px 12px;
  color: rgba(255, 255, 255, .7);
  font-size: 13px;
  max-width: 300px;
  margin-top: 16px;
}
.back-top {
  display: inline-flex;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  margin-top: 12px;
  transition: var(--transition);
  font-size: 16px;
}
.back-top:hover {
  background: #fff;
  color: var(--green-deep);
  transform: translateY(-3px);
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  border-top: 1px solid rgba(255, 255, 255, .08);
  padding-top: 26px;
  color: rgba(255, 255, 255, .46);
  font-size: 13px;
}
/* ===== Responsive ===== */
@media (max-width: 1199.98px) {
  .main-nav-list {
    gap: 20px;
  }
  .command-search {
    width: 180px;
  }
  .header-inner {
    gap: 18px;
  }
}
@media (max-width: 991.98px) {
  .main-nav,
  .header-actions .command-search,
  .header-actions .header-cta,
  .header-actions .icon-cta {
    display: none;
  }
  .mobile-toggle {
    display: inline-flex;
  }
  .footer-main {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .faq-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .faq-aside {
    max-width: 620px;
  }
}
@media (max-width: 767.98px) {
  .container-xl-large {
    width: min(100% - 32px, 1280px);
  }
  .section-block {
    padding: 70px 0;
  }
  .category-hero {
    padding: 58px 0 64px;
  }
  .breadcrumb-nav {
    margin-bottom: 30px;
  }
  .topic-grid {
    grid-template-columns: 1fr 1fr;
  }
  .more-grid {
    grid-template-columns: 1fr;
  }
  .footer-main {
    grid-template-columns: 1fr;
    gap: 30px;
    padding-bottom: 36px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
  .journey-list {
    padding-left: 76px;
  }
  .journey-item {
    padding-left: 76px;
  }
  .journey-no {
    left: 12px;
    width: 56px;
    height: 56px;
  }
  .journey-card.flipped .journey-media,
  .journey-card.flipped .journey-copy {
    order: initial;
  }
  .heartbeat-text {
    display: block;
  }
}
@media (max-width: 575.98px) {
  .container-xl-large {
    width: calc(100% - 28px);
  }
  .section-title {
    font-size: 28px;
  }
  .category-hero {
    padding: 44px 0 54px;
  }
  .hero-title {
    font-size: 32px;
  }
  .hero-title .thin-text {
    font-size: .56em;
    margin-top: 10px;
  }
  .hero-desc {
    font-size: 14px;
  }
  .hero-actions .btn-hero-primary,
  .hero-actions .btn-hero-second {
    width: 100%;
    justify-content: center;
  }
  .topic-grid {
    grid-template-columns: 1fr;
  }
  .journey-list::before {
    display: none;
  }
  .journey-list {
    padding-left: 0;
    margin-top: 32px;
  }
  .journey-item {
    padding-left: 0;
    margin-bottom: 44px;
  }
  .journey-no {
    position: static;
    display: inline-flex;
    width: 48px;
    height: 48px;
    font-size: 18px;
    margin-bottom: 14px;
  }
  .journey-media,
  .journey-media img {
    min-height: 210px;
    aspect-ratio: 16 / 9;
  }
  .journey-copy {
    padding: 24px 20px;
  }
  .journey-copy h3 {
    font-size: 20px;
  }
  .bottom-cta h2 {
    font-size: 24px;
  }
  .footer-main {
    gap: 24px;
  }
}
@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}

/* roulang page: category4 */
:root{
  --primary:#0E4F43;
  --primary-dark:#0A332B;
  --primary-deep:#082A22;
  --primary-soft:#DCE9E2;
  --accent:#B7522B;
  --accent-soft:#F2DFD3;
  --bg:#F6F2EA;
  --panel:#FFFFFF;
  --deep-block:#0C352B;
  --text:#1B201D;
  --text-secondary:#5E6F65;
  --border:rgba(14,79,67,.14);
  --radius-card:8px;
  --radius-btn:5px;
  --radius-tag:999px;
  --shadow-sm:0 1px 2px rgba(8,42,34,.04),0 6px 18px rgba(8,42,34,.05);
  --shadow-hover:0 18px 44px rgba(8,42,34,.13);
  --font-sans:"PingFang SC","Microsoft YaHei","Source Han Sans CN","Noto Sans SC",sans-serif;
  --font-serif:"Playfair Display","Times New Roman",serif;
}
*,
*::before,
*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-sans);
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .25s ease;}
a:hover{color:var(--accent);}
ul,ol{list-style:none;}
button,input{font:inherit;}
button:focus-visible,
a:focus-visible,
input:focus-visible{
  outline:2px solid var(--accent);
  outline-offset:3px;
  border-radius:4px;
}
body .site-footer a:focus-visible,
body .main-nav a:focus-visible{
  outline-color:rgba(255,255,255,.9);
}
.container-xlarge,
.container-xl-large{
  width:100%;
  max-width:1280px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}
@media(max-width:767px){
  .container-xl-large{padding-left:20px;padding-right:20px;}
}
.btn{
  border-radius:var(--radius-btn);
  font-weight:600;
  border:1px solid transparent;
  padding:10px 22px;
  display:inline-flex;
  align-items:center;
  gap:9px;
  transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease;
  line-height:1.4;
  font-size:15px;
}
.btn i{font-size:14px;}
.btn-primary{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:0 12px 24px rgba(14,79,67,.18);}
.btn-line{
  background:transparent;
  border-color:rgba(14,79,67,.3);
  color:var(--primary-dark);
}
.btn-line:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-2px);}
.btn-light-line{
  background:rgba(255,255,255,.08);
  border-color:rgba(255,255,255,.55);
  color:#fff;
}
.btn-light-line:hover{
  background:var(--accent);
  border-color:var(--accent);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 14px 30px rgba(0,0,0,.16);
}
.btn-accent{background:var(--accent);border-color:var(--accent);color:#fff;}
.btn-accent:hover{background:#93401f;border-color:#93401f;color:#fff;transform:translateY(-2px);}

/* ---------- header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(246,242,234,.92);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:border-color .3s ease,box-shadow .3s ease;
}
.header-flex{
  display:flex;
  align-items:center;
  min-height:72px;
  gap:24px;
  position:relative;
}
.header-flex.is-scrolled{border-bottom:1px solid var(--border);box-shadow:var(--shadow-sm);}
.brand-mark{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.brand-badge{
  width:38px;
  height:38px;
  flex:0 0 38px;
  border:1px solid var(--primary);
  border-radius:8px;
  display:grid;
  place-items:center;
  background:var(--primary);
  color:#fff;
  font-size:22px;
  line-height:1;
  font-weight:700;
}
.brand-word{
  display:flex;
  flex-direction:column;
  line-height:1.2;
}
.brand-word strong{
  font-size:18px;
  letter-spacing:.02em;
  font-weight:800;
  color:var(--primary-dark);
}
.brand-word span{
  font-size:11.5px;
  color:var(--text-secondary);
  font-weight:600;
  letter-spacing:.2em;
  transform:translateY(-2px);
}
.main-nav{
  margin-left:auto;
}
.nav-list{
  display:flex;
  align-items:center;
}
.main-nav-list{
  gap:2px;
}
.main-nav-list .main-nav-link{
  display:inline-block;
  padding:10px 15px;
  font-size:15px;
  font-weight:600;
  color:var(--text);
  position:relative;
  border-radius:5px;
  transition:background .25s,color .25s;
}
.main-nav-list .main-nav-link::after{
  content:"";
  position:absolute;
  left:15px;
  right:15px;
  bottom:1px;
  height:2px;
  background:var(--primary);
  transform:scaleX(0);
  transform-origin:left center;
  transition:transform .3s ease;
}
.main-nav-list .main-nav-link:hover{color:var(--primary);}
.main-nav-list .main-nav-link:hover::after,
.main-nav-list .main-nav-link.active::after{transform:scaleX(1);}
.main-nav-list .main-nav-link.active{color:var(--primary);font-weight:700;}
.site-header .header-actions{
  display:flex;
  align-items:center;
  gap:10px;
}
.command-search{
  border:1px solid var(--border);
  background:rgba(255,255,255,.7);
  color:var(--text-secondary);
  height:40px;
  padding:0 10px 0 14px;
  border-radius:999px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  min-width:190px;
  cursor:pointer;
  transition:border-color .3s,box-shadow .3s,background .3s;
  width:100%;
}
.command-search:hover{border-color:rgba(14,79,67,.4);background:#fff;box-shadow:0 2px 8px rgba(14,79,67,.06);}
.command-search .cs-icon{color:var(--primary);}
.command-search .cs-placeholder{flex:1;text-align:left;color:var(--text-secondary);white-space:nowrap;}
.command-search kbd{
  background:#fff;
  border:1px solid var(--border);
  border-radius:4px;
  padding:0 8px;
  font-size:11px;
  font-family:var(--font-sans);
  color:var(--primary-dark);
  box-shadow:0 1px 0 rgba(14,79,67,.08);
}
.nav-toggle{
  border:1px solid var(--border);
  background:transparent;
  width:42px;
  height:42px;
  border-radius:6px;
  transition:background .2s,color .2s;
  display:none;
}
.nav-toggle:hover{background:var(--primary-dark);color:#fff;}
.header-login-link{
  background:var(--primary);
  border-color:var(--primary);
  color:#fff;
  padding:8px 15px;
  border-radius:5px;
  font-size:14px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:600;
  transition:background .25s,transform .25s,color .25s;
}
.header-login-link:hover{
  background:var(--primary-dark);
  color:#fff;
  transform:translateY(-1px);
}
@media(min-width:992px){
  .main-nav{display:flex!important;}
}
@media(max-width:1199px){
  .command-search{min-width:150px;}
}
@media(max-width:991.98px){
  .nav-toggle{display:block;}
  .main-nav{
    position:absolute;
    top:72px;
    left:0;
    right:0;
    display:block;
    visibility:hidden;
    opacity:0;
    background:var(--panel);
    border-bottom:1px solid var(--border);
    padding:14px 24px 22px;
    box-shadow:0 16px 40px rgba(14,79,67,.10);
    transform:translateY(-10px);
    transition:opacity .3s,transform .3s,visibility .3s;
    margin-left:0;
    z-index:100;
  }
  .site-header.nav-open .main-nav{
    visibility:visible;
    opacity:1;
    transform:none;
  }
  .main-nav-list{
    flex-direction:column;
    align-items:stretch;
    gap:2px;
  }
  .main-nav-list .main-nav-link{
    display:block;
    padding:13px 16px;
    border-radius:6px;
    font-size:16px;
    font-weight:600;
  }
  .main-nav-list .main-nav-link:hover{background:var(--primary-soft);}
  .main-nav-list .main-nav-link::after{display:none;}
  .main-nav-list .main-nav-link.active{background:var(--primary-soft);}
}
@media(max-width:575.98px){
  .header-login-link span{display:none;}
  .header-login-link{
    width:42px;
    height:42px;
    justify-content:center;
    padding:0;
  }
  .header-login-link i{font-size:15px;margin:0;}
  .header-flex{gap:10px;}
}

/* ---------- hero small ---------- */
.category-hero{
  position:relative;
  background-color:var(--primary-deep);
  background-size:cover;
  background-position:center;
  color:#fff;
  display:flex;
  align-items:center;
  min-height:340px;
  padding:112px 0 92px;
  isolation:isolate;
}
.category-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(90deg,rgba(8,42,34,.96) 4%,rgba(10,51,43,.86) 50%,rgba(10,51,43,.5) 100%);
  z-index:-1;
}
.category-hero .hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:12px;
  font-size:12px;
  letter-spacing:.18em;
  color:rgba(255,255,255,.78);
  font-weight:600;
  text-transform:uppercase;
  margin-bottom:18px;
}
.category-hero .hero-kicker::before{
  content:"";
  width:34px;
  height:2px;
  background:var(--accent);
  display:inline-block;
}
.category-hero .category-hero-title{
  font-size:60px;
  line-height:1.18;
  font-weight:800;
  letter-spacing:.02em;
  margin-bottom:18px;
}
.category-hero .category-hero-sub{
  max-width:560px;
  color:rgba(255,255,255,.84);
  font-size:16px;
  line-height:1.85;
  margin-bottom:24px;
}
.breadcrumb-line{
  margin-bottom:26px;
  font-size:13px;
  color:rgba(255,255,255,.66);
  display:flex;
  flex-wrap:wrap;
  gap:8px;
}
.breadcrumb-line a{color:#fff;padding-right:6px;}
.breadcrumb-line a:hover{color:#e9c2a5;}
.breadcrumb-line .sep{opacity:.55;}
.hero-info-row{
  display:flex;
  gap:8px 28px;
  flex-wrap:wrap;
  margin-top:34px;
}
.hero-info-row .mini-meta{
  display:inline-flex;
  align-items:center;
  gap:9px;
  color:rgba(255,255,255,.8);
  font-size:13px;
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.14);
  padding:8px 15px;
  border-radius:999px;
}
.hero-info-row .mini-meta i{color:#F2C59E;font-size:13px;}
@media(max-width:767px){
  .category-hero{padding:72px 0 64px;}
  .category-hero .category-hero-title{font-size:36px;}
  .category-hero .category-hero-sub{font-size:15px;}
}

/* ---------- section base ---------- */
.sec-page{
  padding:96px 0;
}
.page-grid-block{
}
.section-title-group{
  margin-bottom:40px;
  position:relative;
}
.section-title-group .no-label{
  display:inline-block;
  font-family:var(--font-serif);
  font-size:14px;
  letter-spacing:.08em;
  color:var(--accent);
  font-weight:700;
  text-transform:uppercase;
  margin-bottom:6px;
}
.section-title-group .section-title-h2{
  font-size:31px;
  font-weight:700;
  line-height:1.35;
  color:var(--primary-dark);
  margin-bottom:14px;
}
.section-title-group .section-desc{
  font-size:15px;
  color:var(--text-secondary);
  max-width:760px;
  line-height:1.8;
}
.section-title-row{
  display:flex;
  justify-content:space-between;
  gap:20px;
  align-items:flex-end;
  flex-wrap:wrap;
}
@media(max-width:575.98px){
  .sec-page{padding:64px 0;}
  .section-title-h2{font-size:24px;}
}

/* ---------- topic index elements ---------- */
.topic-index-bg{
  background:var(--bg);
}
.topic-groups{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:16px;
  margin-top:28px;
}
.topic-group-item{
  grid-column:span 4;
  border:1px solid var(--border);
  background:var(--panel);
  padding:28px 26px;
  border-radius:var(--radius-card);
  position:relative;
  box-shadow:0 1px 2px rgba(14,79,67,.03);
  transition:border-color .3s,box-shadow .3s,transform .3s;
  overflow:hidden;
}
.topic-group-item::before{
  content:"";
  height:3px;
  width:46px;
  border-radius:4px;
  background:var(--accent);
  position:absolute;
  top:0;
  left:26px;
}
.topic-group-item:nth-child(2)::before{background:var(--primary);}
.topic-group-item:nth-child(3)::before{background:#B5943B;}
.topic-group-item .topic-num{
  font-family:var(--font-serif);
  font-size:40px;
  line-height:1;
  color:rgba(14,79,67,.3);
  font-weight:700;
  display:block;
  margin-bottom:12px;
}
.topic-group-item:nth-child(2) .topic-num{color:rgba(183,82,43,.3);}
.topic-group-item h3{
  font-size:20px;
  font-weight:700;
  color:var(--primary-dark);
  margin-bottom:10px;
}
.topic-group-item p{
  color:var(--text-secondary);
  font-size:14px;
  line-height:1.72;
  margin-bottom:18px;
  min-height:50px;
}
.topic-anchor{
  font-weight:700;
  font-size:14px;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.topic-anchor i{transition:transform .25s;}
.topic-anchor:hover i{transform:translateX(5px);}
.topic-group-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:rgba(14,79,67,.2);}
@media(max-width:991px){
  .topic-group-item{grid-column:span 6;}
  .topic-group-item:last-child{grid-column:span 12;}
}
@media(max-width:575px){
  .topic-group-item{grid-column:span 12!important;}
  .topic-group-item p{min-height:auto;}
}

/* ---------- FAQ block theme ---------- */
.faq-wrap-sec{
  border-bottom:1px solid var(--border);
  border-top:1px solid var(--border);
}
.group-block{
  scroll-margin-top:96px;
}
.group-wrap{
  display:grid;
  grid-template-columns:300px 1fr;
  gap:34px;
  padding:80px 0 72px;
  border-bottom:1px solid var(--border);
  align-items:start;
  scroll-margin-top:90px;
}
.group-wrap:last-child{border-bottom:none;}
.group-aside{
  position:sticky;
  top:112px;
}
.group-aside .group-num{
  font-family:var(--font-serif);
  font-size:46px;
  line-height:1;
  font-weight:700;
  color:rgba(14,79,67,.22);
  display:block;
  margin-bottom:16px;
}
.group-aside h2{
  font-size:25px;
  font-weight:700;
  color:var(--primary-dark);
  margin-bottom:14px;
  line-height:1.4;
}
.group-aside p{
  color:var(--text-secondary);
  font-size:14px;
  line-height:1.75;
  margin-bottom:16px;
}
.group-aside .link-line{
  border-top:2px solid var(--border);
  padding-top:14px;
  width:100%;
  font-size:14px;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-weight:600;
}
.group-aside .link-line:hover{color:var(--accent);}
@media(max-width:991px){
  .group-wrap{grid-template-columns:1fr;gap:20px;padding:56px 0 48px;}
  .group-aside{position:static;}
  .group-aside .group-num{margin-bottom:6px;}
}
.faq-page-items{
  border-top:2px solid rgba(14,79,67,.85);
  background:var(--panel);
  box-shadow:var(--shadow-sm);
}
.faq-item{
  border-bottom:1px solid var(--border);
  padding:24px 10px 24px 0;
  display:grid;
  grid-template-columns:44px 1fr;
  gap:18px;
  transition:background .25s;
}
.faq-item:hover{background:rgba(220,233,226,.34);}
.faq-item .faq-no{
  font-family:var(--font-serif);
  font-size:21px;
  color:var(--accent);
  font-weight:700;
  line-height:1.4;
}
.faq-item h3{
  font-size:17px;
  font-weight:700;
  color:var(--text);
  margin-bottom:8px;
}
.faq-item p{
  font-size:14px;
  line-height:1.75;
  color:var(--text-secondary);
}
@media(max-width:575px){
  .faq-page-items{background:rgba(255,255,255,.5);}
  .faq-item{grid-template-columns:31px 1fr;padding:22px 8px 22px 0;gap:12px;}
  .faq-item .faq-no{font-size:17px;}
  .faq-item h3{font-size:16px;}
}

/* ---------- guide CTA ---------- */
.guide-cta-area{
  background:var(--primary-deep);
  padding:70px 0;
  color:#eef7f0;
  position:relative;
  overflow:hidden;
}
.guide-cta-area::before{
  content:"";
  position:absolute;
  right:-160px;
  top:-160px;
  width:420px;
  height:420px;
  border-radius:50%;
  background:rgba(220,233,226,.05);
}
.guide-cta-area .sec-tag{
  display:inline-block;
  background:rgba(242,207,173,.15);
  color:#FFD9B8;
  font-size:13px;
  font-weight:700;
  padding:8px 16px;
  border-radius:999px;
  letter-spacing:.05em;
  margin-bottom:12px;
}
.guide-cta-area h2{
  color:#fff;
  font-size:32px;
  font-weight:800;
  line-height:1.4;
  margin:10px 0 12px;
}
.guide-cta-area > .container-xl-large > p{
  color:rgba(255,255,255,.75);
  font-size:15px;
  margin-bottom:30px;
  max-width:720px;
}
.guide-grid{
  display:grid;
  grid-template-columns:repeat(12,1fr);
  gap:16px;
}
.guide-card{
  grid-column:span 6;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.14);
  border-radius:10px;
  padding:28px;
  display:block;
  color:#fff;
  transition:background .3s,border-color .3s,transform .3s;
}
.guide-card:hover{
  background:rgba(255,255,255,.09);
  border-color:rgba(242,207,173,.5);
  color:#fff;
  transform:translateY(-3px);
}
.guide-card .guide-title{
  font-size:21px;
  font-weight:800;
  color:#fff;
  margin-bottom:4px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.guide-card .guide-title i{
  color:#EAC5A5;
  width:22px;
  height:22px;
  border:1px solid rgba(255,255,255,.35);
  border-radius:50%;
  display:grid;
  place-items:center;
  font-size:12px;
}
.guide-card .guide-desc{
  color:rgba(255,255,255,.7);
  font-size:14px;
  line-height:1.7;
}
@media(max-width:767px){
  .guide-grid{grid-template-columns:1fr;}
  .guide-card{grid-column:span 12;}
  .guide-cta-area h2{font-size:24px;}
}
/* 底部连接区 */
.linking-strip{
  background:#EEEAE0;
  padding:30px 0;
  border-bottom:1px solid var(--border);
}
.linking-pills{
  display:flex;
  align-items:center;
  gap:10px 22px;
  flex-wrap:wrap;
  font-size:13px;
}
.linking-pills .pull-label{color:var(--text-secondary);font-weight:600;}
.linking-pills li a{
  background:#fff;
  border:1px solid var(--border);
  color:var(--primary-dark);
  padding:9px 17px;
  border-radius:999px;
  display:inline-block;
}
.linking-pills li a:hover{border-color:var(--primary);background:var(--primary);color:#fff;}

/* Footer */
.site-footer{
  background:var(--deep-block);
  color:rgba(255,255,255,.75);
  padding-top:66px;
  position:relative;
}
.footer-main{
  display:grid;
  grid-template-columns:minmax(260px,1.3fr) .9fr .8fr 1fr;
  gap:38px;
  padding-bottom:45px;
}
.footer-brand-title{
  display:flex;
  align-items:center;
  gap:7px;
  font-size:19px;
  color:#fff;
  font-weight:700;
  margin-bottom:14px;
}
.footer-brand-title strong{font-weight:800;}
.footer-brand-col .brand-badge{
  width:32px;
  height:32px;
  font-size:18px;
  border-radius:7px;
  background:var(--accent);
  border-color:var(--accent);
}
.footer-about{
  font-size:13px;
  color:rgba(255,255,255,.58);
  line-height:1.8;
  margin-bottom:20px;
  max-width:300px;
}
.search-inline{
  display:inline-flex;
  align-items:center;
  gap:8px;
  color:rgba(255,255,255,.6);
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.1);
  border-radius:999px;
  padding:8px 14px;
  font-size:13px;
  width:100%;
  max-width:280px;
}
.site-footer h4{
  color:#fff;
  font-size:15px;
  font-weight:700;
  margin-bottom:17px;
  letter-spacing:.02em;
}
.header-actions .login-inline .fa-user{font-size:13px;}
.site-footer ul li{
  margin-bottom:10px;
  display:flex;
}
.site-footer ul li a{
  color:rgba(255,255,255,.63);
  font-size:13px;
  display:inline-flex;
  align-items:center;
  gap:8px;
  line-height:1.6;
}
.site-footer ul li a i.fa-circle{font-size:5px;color:#b7522b;transition:transform .25s;}
.site-footer ul li a:hover{color:#fff;}
.site-footer ul li a:hover i.fa-circle{transform:scale(1.5);color:#EAC5A5;}
.site-footer p{font-size:13px;line-height:1.8;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.09);
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  color:rgba(255,255,255,.43);
  font-size:12.5px;
  padding:20px 0 36px;
}
.back-top{
  margin-top:18px;
  width:39px;
  height:39px;
  border-radius:50%;
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.2);
  color:#fff;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  transition:background .25s,transform .25s;
}
.back-top:hover{background:var(--accent);color:#fff;transform:translateY(-4px);}
@media(max-width:1024px){
  .footer-main{grid-template-columns:1fr 1fr;}
}
@media(max-width:575.98px){
  .footer-main{grid-template-columns:1fr;gap:28px;}
}

/* ---------- search overlay ---------- */
.search-overlay{
  position:fixed;
  inset:0;
  z-index:1500;
  padding:16px;
  display:flex;
  align-items:flex-start;
  justify-content:center;
  background:rgba(8,42,34,.78);
  backdrop-filter:blur(4px);
  visibility:hidden;
  opacity:0;
  transition:opacity .3s,visibility .3s;
}
.search-overlay.open{opacity:1;visibility:visible;}
.search-modal{
  background:var(--panel);
  border-radius:12px;
  width:min(620px,100%);
  margin-top:5vh;
  padding:20px;
  box-shadow:0 26px 70px rgba(0,0,0,.33);
  transform:translateY(-8px);
  transition:transform .3s ease;
}
.search-overlay.open .search-modal{transform:none;}
.modal-topline{
  display:flex;
  align-items:center;
  gap:12px;
}
.modal-topline i{color:var(--primary);font-size:18px;}
.modal-topline input{
  border:none;
  border-bottom:1px solid var(--border);
  background:transparent;
  padding:11px 0;
  width:100%;
  color:var(--text);
  font-size:16px;
}
.modal-topline input:focus{outline:none;border-bottom-color:var(--primary);box-shadow:none;}
.modal-close{
  border:none;
  background:transparent;
  cursor:pointer;
  color:var(--text-secondary);
  font-size:18px;
  padding:6px;
  border-radius:50%;
}
.modal-close:hover{background:var(--primary-soft);color:var(--primary-dark);}
.search-suggestion{
  margin-top:20px;
  border-top:1px solid var(--border);
  padding-top:14px;
}
.search-suggestion .sgroup-label{
  font-size:14px;
  color:var(--text-secondary);
  margin-bottom:8px;
  display:block;
}
.sg-items li a{
  display:flex;
  padding:13px 8px;
  border-radius:7px;
  justify-content:space-between;
  gap:14px;
  align-items:center;
  font-size:14px;
  color:var(--text);
  transition:background .2s;
}
.sg-items li a:hover{background:var(--primary-soft);color:var(--primary-dark);}
.sg-items li a small{color:var(--text-secondary);}
.sg-items li a i{color:var(--primary);}
@media(max-width:519px){
  .search-modal{width:calc(100% - 26px);margin-top:2vh;padding:16px;}
}

/* reveal motion */
.js-animate{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .55s ease,transform .55s ease;
}
.js-animate.in-view{
  opacity:1;
  transform:none;
}
@media(prefers-reduced-motion:reduce){
  html{scroll-behavior:auto;}
  *,*::before,*::after{animation:none!important;transition:none!important;}
  .js-animate{opacity:1;transform:none;}
}