/* roulang page: index */
:root{
  --bg: #F4F5F1;
  --bg-alt: #EAF0EA;
  --surface: #FFFFFF;
  --dark-bg: #0C1B18;
  --dark-bg-2: #123330;
  --primary: #0A5B4E;
  --primary-hover: #0E6E5C;
  --accent: #C6A34A;
  --ink: #1C2521;
  --muted: #6D7771;
  --border: rgba(20, 45, 38, 0.14);
  --fs-display-1: clamp(2.1rem, 4.6vw, 3.4rem);
  --fs-display-2: clamp(1.7rem, 2.6vw, 2.2rem);
  --fs-title: clamp(1.3rem, 1.8vw, 1.55rem);
  --fs-body: clamp(0.95rem, 1vw, 1rem);
  --fs-caption: 0.8rem;
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}
*,
*::before,
*::after{
  box-sizing:border-box;
}
html{
  scroll-behavior:smooth;
}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Helvetica Neue",sans-serif;
  background:var(--bg);
  color:var(--ink);
  font-size:var(--fs-body);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{
  max-width:100%;
  display:block;
}
a{
  color:var(--primary);
  text-decoration:none;
  transition:color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}
a:hover{
  color:var(--primary-hover);
}
button,
input{
  font-family:inherit;
}
.container{
  max-width:1200px;
  padding-left:20px;
  padding-right:20px;
}
.section{
  padding:80px 0;
  position:relative;
}
.section-alt{
  background:var(--bg-alt);
}
.section-head{
  max-width:720px;
  margin-bottom:50px;
}
.section-head-center{
  margin-left:auto;
  margin-right:auto;
  text-align:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:var(--fs-caption);
  letter-spacing:.08em;
  color:var(--primary);
  font-weight:600;
  text-transform:uppercase;
}
.eyebrow::before{
  content:"";
  width:24px;
  height:2px;
  background:var(--accent);
  display:inline-block;
}
.section-title{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  font-size:var(--fs-display-2);
  line-height:1.3;
  margin:14px 0 12px;
  font-weight:600;
  letter-spacing:.01em;
  color:var(--ink);
}
.section-desc{
  color:var(--muted);
  font-size:var(--fs-body);
  line-height:1.85;
  margin-bottom:0;
}
.section-link{
  color:var(--ink);
  font-size:var(--fs-caption);
  font-weight:600;
  border-bottom:1px solid rgba(26,40,33,.35);
  padding-bottom:3px;
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:border-color .2s var(--ease), color .2s var(--ease);
}
.section-link:hover{
  color:var(--primary);
  border-color:var(--primary);
}
.section-link::after{
  content:"→";
  transition:transform .2s var(--ease);
}
.section-link:hover::after{
  transform:translateX(4px);
}
.btn{
  border-radius:4px;
  font-weight:600;
  padding:12px 24px;
  transition:all .25s var(--ease);
  border:1px solid transparent;
}
.btn:focus-visible{
  outline:none;
  box-shadow:0 0 0 3px var(--accent);
}
.btn-primary{
  background:var(--primary);
  color:#fff;
  border-color:var(--primary);
}
.btn-primary:hover,
.btn-primary:focus{
  background:var(--primary-hover);
  border-color:var(--primary-hover);
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 12px 28px rgba(10,91,78,.18);
}
.btn-outline{
  border-color:var(--primary);
  color:var(--primary);
  background:transparent;
}
.btn-outline:hover{
  background:rgba(10,91,78,.08);
  color:var(--primary);
  transform:translateY(-2px);
}
.btn-accent{
  background:var(--accent);
  color:var(--dark-bg);
  border-color:var(--accent);
}
.btn-accent:hover,
.btn-accent:focus{
  background:#d7b75f;
  border-color:#d7b75f;
  color:var(--dark-bg);
  transform:translateY(-2px);
  box-shadow:0 14px 30px rgba(198,163,74,.25);
}
.btn-ghost-light{
  border-color:rgba(255,255,255,.55);
  color:#fff;
  background:rgba(255,255,255,.02);
}
.btn-ghost-light:hover{
  background:rgba(255,255,255,.14);
  border-color:#fff;
  color:#fff;
}
.card{
  border:1px solid var(--border);
  border-radius:8px;
  background:var(--surface);
  box-shadow:0 4px 16px rgba(18,45,32,.06);
  transition:box-shadow .25s var(--ease), transform .25s var(--ease);
}
.card:hover{
  box-shadow:0 12px 32px rgba(18,45,32,.1);
  transform:translateY(-2px);
}
/* header */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:1050;
  transition:background .3s var(--ease), box-shadow .3s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(244,245,241,.92);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  border-bottom-color:rgba(26,40,33,.08);
  box-shadow:0 6px 20px rgba(10,30,23,.06);
}
.site-header .navbar{
  min-height:72px;
  padding:0 4px;
}
.brand-logo{
  display:flex;
  flex-direction:column;
  line-height:1.1;
  margin-right:1rem;
}
.brand-text{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  font-size:1.35rem;
  font-weight:700;
  color:#f6f8f4;
  white-space:nowrap;
  transition:color .3s var(--ease);
}
.brand-text .brand-gap{
  color:var(--accent);
}
.brand-sub{
  font-size:.72rem;
  color:rgba(255,255,255,.56);
  margin-top:3px;
  letter-spacing:.06em;
  transition:color .3s var(--ease);
}
.site-header.scrolled .brand-text{
  color:var(--ink);
}
.site-header.scrolled .brand-sub{
  color:var(--muted);
}
.site-header .nav-link,
.site-header .dropdown-toggle{
  position:relative;
  color:rgba(255,255,255,.88);
  font-size:.94rem;
  font-weight:500;
  padding:8px 14px !important;
  border-radius:4px;
}
.site-header.scrolled .nav-link,
.site-header.scrolled .dropdown-toggle{
  color:var(--ink);
}
.site-header .nav-link::after,
.site-header .dropdown-toggle::after{
  content:"";
  position:absolute;
  left:14px;
  right:14px;
  bottom:2px;
  height:2px;
  background:var(--accent);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .22s var(--ease);
}
.site-header .nav-link:hover::after,
.site-header .dropdown-toggle:hover::after,
.site-header .nav-link.active::after{
  transform:scaleX(1);
}
.site-header .nav-link.active,
.site-header .dropdown-toggle.show{
  color:#fff;
}
.site-header.scrolled .nav-link.active,
.site-header.scrolled .dropdown-toggle.show{
  color:var(--primary);
}
.header-tools{
  display:flex;
  align-items:center;
  gap:10px;
  margin-left:14px;
}
.mega-toggle{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:9px 14px;
  font-weight:600;
  font-size:.9rem;
  border-radius:4px;
  cursor:pointer;
  color:rgba(255,255,255,.88);
  transition:background .2s var(--ease);
}
.mega-toggle:hover{
  background:rgba(255,255,255,.1);
}
.site-header.scrolled .mega-toggle{
  color:var(--ink);
}
.site-header.scrolled .mega-toggle:hover{
  background:rgba(10,91,78,.08);
}
.mega-toggle svg{
  width:14px;
  height:14px;
}
.mega-panel{
  width:740px;
  padding:28px;
  border:1px solid var(--border);
  border-radius:14px;
  background:#fbfcf9;
  box-shadow:0 20px 50px rgba(10,40,30,.18);
  left:auto;
  right:0;
  margin-top:12px;
}
.mega-panel::before{
  content:"";
  position:absolute;
  top:-12px;
  right:30px;
  width:20px;
  height:20px;
  background:#fbfcf9;
  border-left:1px solid var(--border);
  border-top:1px solid var(--border);
  transform:rotate(45deg);
}
@media(min-width:992px){
  .mega-dropdown:hover .mega-panel{
    display:block;
  }
}
.mega-title{
  font-size:.84rem;
  color:var(--muted);
  letter-spacing:.05em;
  text-transform:uppercase;
  margin-bottom:14px;
  font-weight:600;
}
.mega-links{
  list-style:none;
  padding:0;
  margin:0;
}
.mega-links li{
  margin-bottom:2px;
}
.mega-links a{
  display:flex;
  justify-content:space-between;
  color:var(--ink);
  padding:7px 0;
  font-size:.93rem;
  border-bottom:1px dashed rgba(10,60,45,.08);
}
.mega-links a:hover{
  color:var(--primary);
  padding-left:4px;
}
.mega-links a span{
  color:var(--muted);
  font-size:.8rem;
}
.mega-entries{
  list-style:none;
  padding:0;
  margin:0;
}
.mega-entries li{
  display:flex;
  gap:12px;
  padding:9px 0;
  border-bottom:1px dashed rgba(10,60,45,.08);
}
.mega-entries time{
  font-size:.75rem;
  color:var(--muted);
  min-width:56px;
  line-height:1.5;
}
.mega-entries a{
  color:var(--ink);
  font-size:.9rem;
  line-height:1.5;
}
.mega-entries a:hover{
  color:var(--primary);
}
.mega-card{
  display:block;
  border-radius:12px;
  overflow:hidden;
  background:#e8ece5;
  position:relative;
  color:#fff;
}
.mega-card img{
  height:180px;
  width:100%;
  object-fit:cover;
}
.mega-card .mega-card-caption{
  position:absolute;
  left:0;
  right:0;
  bottom:0;
  background:linear-gradient(180deg,transparent,rgba(8,24,20,.86));
  padding:30px 16px 14px;
  font-weight:600;
  font-size:.9rem;
}
.header-btn{
  padding:9px 20px !important;
  border-radius:4px;
  font-size:.9rem;
}
.site-header .navbar-toggler{
  border:1px solid rgba(255,255,255,.4);
  border-radius:6px;
  padding:4px 10px;
  color:#fff;
}
.site-header.scrolled .navbar-toggler{
  color:var(--ink);
  border-color:rgba(30,50,42,.3);
}
.site-header .navbar-toggler:focus{
  box-shadow:0 0 0 3px rgba(198,163,74,.4);
  outline:none;
}
.navbar-toggler-icon{
  filter:invert(1) brightness(2);
}
.site-header.scrolled .navbar-toggler-icon{
  filter:none;
}
/* hero */
.hero{
  position:relative;
  min-height:100vh;
  min-height:calc(100vh - 0px);
  display:flex;
  align-items:center;
  padding-top:90px;
  padding-bottom:70px;
  background:url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  overflow:hidden;
}
.hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(105deg, rgba(9,24,20,.92) 0%, rgba(10,30,26,.82) 44%, rgba(15,42,36,.62) 100%);
}
.hero .container{
  position:relative;
  z-index:3;
}
.hero-content{
  max-width:700px;
}
.hero-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:10px;
  background:rgba(255,255,255,.09);
  border:1px solid rgba(255,255,255,.16);
  padding:7px 16px;
  border-radius:40px;
  color:rgba(255,255,255,.82);
  font-size:.85rem;
  margin-bottom:28px;
  letter-spacing:.05em;
}
.hero-eyebrow i{
  width:7px;
  height:7px;
  background:var(--accent);
  border-radius:50%;
  display:inline-block;
}
.hero-title{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  font-size:var(--fs-display-1);
  line-height:1.18;
  font-weight:700;
  color:#fff;
  letter-spacing:.02em;
  margin:0 0 22px;
}
.hero-title .title-rule{
  color:var(--accent);
}
.hero-desc{
  font-size:1.05rem;
  line-height:1.9;
  color:rgba(235,240,237,.9);
  max-width:580px;
  margin-bottom:36px;
}
.hero-btns{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-bottom:52px;
}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:10px 8px;
  list-style:none;
  padding:0;
  margin:0;
}
.hero-badges li{
  border:1px solid rgba(255,255,255,.2);
  background:rgba(255,255,255,.06);
  color:rgba(255,255,255,.92);
  font-size:.78rem;
  padding:6px 13px;
  border-radius:30px;
  letter-spacing:.03em;
}
.hero-panel{
  background:rgba(12,32,27,.65);
  border:1px solid rgba(255,255,255,.18);
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  border-radius:18px;
  padding:28px;
  color:#fff;
  max-width:370px;
  margin-left:auto;
  animation:floatIn .8s .3s var(--ease) both;
}
.hero-panel h5{
  font-size:1.05rem;
  font-weight:600;
  margin-bottom:10px;
  color:#fff;
}
.hero-panel p{
  font-size:.84rem;
  color:rgba(240,244,238,.75);
  line-height:1.7;
  margin-bottom:16px;
}
.hero-panel-list{
  list-style:none;
  padding:0;
  margin:0;
  counter-reset:panel;
}
.hero-panel-list li{
  display:flex;
  align-items:center;
  gap:12px;
  padding:9px 0;
  border-bottom:1px solid rgba(255,255,255,.1);
  font-size:.88rem;
  color:rgba(245,248,243,.9);
}
.hero-panel-list li:last-child{
  border-bottom:0;
}
.hero-panel-list span{
  font-family:"Noto Serif SC","SimSun",serif;
  font-weight:600;
  color:var(--accent);
  font-size:.8rem;
  width:26px;
  height:26px;
  border:1px solid rgba(198,163,74,.5);
  border-radius:50%;
  display:inline-flex;
  align-items:center;
  justify-content:center;
}
.hero-panel-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--accent);
  font-size:.84rem;
  font-weight:600;
  margin-top:12px;
}
.hero-panel-link:hover{
  color:#e2c176;
}
.hero-panel-link::after{
  content:"→";
  transition:transform .2s var(--ease);
}
.hero-panel-link:hover::after{
  transform:translateX(4px);
}
@keyframes floatIn{
  from{
    opacity:0;
    transform:translateY(22px);
  }
  to{
    opacity:1;
    transform:translateY(0);
  }
}
/* steps */
.steps-section{
  background:var(--bg);
}
.steps-wrap{
  max-width:800px;
}
.step-row{
  display:flex;
  gap:30px;
  position:relative;
  padding:0 0 34px 0;
}
.step-row:last-child{
  padding-bottom:12px;
}
.step-row::before{
  content:"";
  position:absolute;
  left:45px;
  top:70px;
  bottom:10px;
  width:1px;
  background:linear-gradient(180deg,var(--primary),rgba(10,91,78,.05));
}
.step-row:last-child::before{
  display:none;
}
.step-num{
  flex:0 0 62px;
  width:62px;
  height:62px;
  background:rgba(10,91,78,.08);
  border:1px solid rgba(10,91,78,.16);
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:"Noto Serif SC","Songti SC","SimSun",serif;
  font-size:1.2rem;
  color:var(--primary);
  font-weight:700;
}
.step-copy{
  padding-top:4px;
  flex:1;
}
.step-copy h3{
  font-family:"Noto Serif SC","Songti SC","SimSun",serif;
  font-size:var(--fs-title);
  font-weight:600;
  color:var(--ink);
  margin:0 0 10px;
  line-height:1.4;
}
.step-copy p{
  color:var(--muted);
  margin:0;
  line-height:1.85;
  max-width:600px;
}
.step-footer{
  margin-top:28px;
  text-align:center;
}
.step-footer a{
  border-bottom:1px solid transparent;
}
/* overview split */
.overview-row{
  background:#EAF0EA;
  padding:0;
}
.overview-block{
  padding:80px 0;
}
.overview-media{
  position:relative;
  border-radius:12px;
  margin-bottom:0;
}
.overview-media img{
  border-radius:12px;
  width:100%;
  height:430px;
  object-fit:cover;
  box-shadow:0 22px 46px rgba(15,40,30,.16);
}
.overview-media::after{
  content:"";
  position:absolute;
  inset:18px -18px -18px 18px;
  border:1px solid rgba(198,163,74,.45);
  border-radius:12px;
  z-index:0;
  pointer-events:none;
}
.overview-media img{
  position:relative;
  z-index:1;
}
.overview-note{
  position:absolute;
  left:-18px;
  bottom:26px;
  background:#fff;
  border-radius:10px;
  padding:14px 18px;
  box-shadow:0 12px 30px rgba(10,50,35,.12);
  z-index:2;
  max-width:240px;
  border-left:3px solid var(--accent);
}
.overview-note b{
  display:block;
  font-size:.95rem;
  color:var(--ink);
}
.overview-note span{
  color:var(--muted);
  font-size:.78rem;
  line-height:1.5;
}
.overview-feature{
  padding-left:32px;
}
.overview-list{
  list-style:none;
  padding:0;
  margin:22px 0 0;
}
.overview-list li{
  display:flex;
  gap:12px;
  padding:13px 0;
  border-bottom:1px solid rgba(20,60,46,.1);
}
.overview-list li:last-child{
  border-bottom:0;
}
.overview-list .ok{
  flex:0 0 20px;
  height:20px;
  border-radius:50%;
  background:rgba(10,91,78,.12);
  color:var(--primary);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:10px;
  margin-top:4px;
}
.overview-list b{
  display:block;
  font-size:.96rem;
  color:var(--ink);
  font-weight:600;
  margin-bottom:2px;
}
.overview-list p{
  font-size:.88rem;
  color:var(--muted);
  margin:0;
  line-height:1.7;
}
/* showcase */
.showcase-card{
  position:relative;
  overflow:hidden;
  border-radius:10px;
  background:var(--surface);
  border:1px solid var(--border);
  box-shadow:0 4px 16px rgba(18,45,32,.05);
  transition:transform .24s var(--ease), box-shadow .24s var(--ease);
  height:100%;
  display:flex;
  flex-direction:column;
}
.showcase-card:hover{
  transform:translateY(-3px);
  box-shadow:0 16px 36px rgba(18,45,32,.11);
}
.showcase-card .show-thumb{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
}
.showcase-card .show-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .6s var(--ease);
}
.showcase-card:hover .show-thumb img{
  transform:scale(1.04);
}
.show-thumb .tag-top{
  position:absolute;
  left:14px;
  top:14px;
  background:rgba(8,28,23,.78);
  color:#fff;
  font-size:.74rem;
  border-radius:4px;
  padding:4px 10px;
  -webkit-backdrop-filter:blur(4px);
  backdrop-filter:blur(4px);
}
.showcase-card .show-body{
  padding:18px 20px 20px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.showcase-card h3,
.news-item h3{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  font-size:1.1rem;
  font-weight:600;
  line-height:1.45;
  margin:0 0 10px;
}
.showcase-card h3 a,
.news-item h3 a{
  color:var(--ink);
  transition:color .2s var(--ease);
}
.showcase-card h3 a:hover,
.news-item h3 a:hover{
  color:var(--primary);
}
.showcase-card p,
.news-excerpt{
  color:var(--muted);
  font-size:.9rem;
  line-height:1.7;
  margin:0 0 14px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.showcase-meta,
.news-meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  margin-top:auto;
  padding-top:12px;
  border-top:1px solid rgba(20,45,38,.08);
}
.showcase-meta span,
.news-meta span{
  font-size:.78rem;
  color:var(--muted);
}
.showcase-more{
  font-size:.8rem;
  font-weight:600;
  color:var(--primary);
  display:inline-flex;
  align-items:center;
  gap:4px;
}
.showcase-more::after{
  content:"→";
}
.big-showcase .show-body{
  padding:24px 28px;
}
.big-showcase h3{
  font-size:1.32rem;
}
.big-showcase p{
  -webkit-line-clamp:3;
}
/* news */
.news-area{
  background:var(--bg);
}
.news-list{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:28px;
}
.news-item{
  display:flex;
  flex-direction:column;
  background:var(--surface);
  border:1px solid var(--border);
  border-radius:8px;
  overflow:hidden;
  transition:box-shadow .24s var(--ease), transform .24s var(--ease);
}
.news-item:hover{
  box-shadow:0 14px 32px rgba(18,45,32,.1);
  transform:translateY(-2px);
}
.news-thumb{
  aspect-ratio:16/9;
  overflow:hidden;
  display:block;
}
.news-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s var(--ease);
}
.news-item:hover .news-thumb img{
  transform:scale(1.03);
}
.news-body{
  padding:20px 22px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.news-body .tag{
  display:inline-block;
  font-size:.72rem;
  color:var(--primary);
  text-transform:uppercase;
  background:rgba(10,91,78,.08);
  border-radius:4px;
  padding:4px 10px;
  margin-bottom:10px;
  align-self:flex-start;
}
.news-meta a{
  color:var(--primary);
  font-size:.8rem;
  font-weight:600;
}
.news-meta a:hover{
  color:var(--primary-hover);
}
.empty-box{
  border:1px dashed var(--border);
  background:#fff;
  border-radius:12px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:14px;
  padding:64px 20px;
  color:var(--muted);
}
.empty-icon{
  font-size:1.4rem;
}
/* FAQ */
.faq-area{
  background:#fff;
}
.faq-wrapper{
  max-width:840px;
  margin:0 auto;
}
.accordion{
  border:0;
}
.accordion-item{
  border:1px solid var(--border);
  border-radius:10px !important;
  overflow:hidden;
  margin-bottom:14px;
  background:#fff;
  box-shadow:0 3px 12px rgba(15,40,26,.04);
}
.accordion-button {
  font-family:-apple-system,"PingFang SC","Microsoft YaHei",sans-serif;
  background:#fff;
  color:var(--ink);
  font-weight:600;
  font-size:1rem;
  padding:20px 22px 18px;
  box-shadow:none;
  border:0;
  border-radius:0;
}
.accordion-button:hover{
  color:var(--primary);
  background:#fbfbf8;
}
.accordion-button:focus{
  box-shadow:none;
  border:0;
}
.accordion-button:not(.collapsed){
  background:#fff;
  color:var(--primary);
  box-shadow:none;
}
.accordion-button::after{
  display:none;
}
.acc-icon{
  width:20px;
  height:20px;
  margin-left:auto;
  flex:0 0 20px;
  border-radius:5px;
  background:rgba(10,91,78,.09);
  position:relative;
  transition:background .2s var(--ease), transform .3s var(--ease);
}
.acc-icon::before{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  width:9px;
  height:1.6px;
  background:var(--primary);
  transform:translate(-50%,-50%);
}
.acc-icon::after{
  content:"";
  position:absolute;
  left:50%;
  top:50%;
  width:1.6px;
  height:9px;
  background:var(--primary);
  transform:translate(-50%,-50%);
  transition:opacity .2s var(--ease);
}
.accordion-button:not(.collapsed) .acc-icon{
  transform:rotate(180deg);
  background:rgba(198,163,74,.18);
}
.accordion-button:not(.collapsed) .acc-icon::after{
  opacity:0;
}
.accordion-body{
  padding:0 22px 22px;
  color:var(--muted);
  font-size:.95rem;
  line-height:1.8;
  background:#fff;
}
/* CTA */
.cta-section{
  position:relative;
  background:url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  padding:90px 0;
  text-align:center;
  overflow:hidden;
}
.cta-section::before{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(120deg, rgba(8,25,21,.95), rgba(11,42,34,.86));
}
.cta-section .container{
  position:relative;
  z-index:2;
}
.cta-title{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  font-size:var(--fs-display-2);
  color:#fff;
  margin:0 0 18px;
}
.cta-section p{
  max-width:640px;
  margin:0 auto 34px;
  color:rgba(239,245,239,.86);
  font-size:1rem;
  line-height:1.9;
}
.cta-buttons{
  display:flex;
  justify-content:center;
  gap:14px;
  flex-wrap:wrap;
}
/* footer */
.footer{
  background:var(--dark-bg);
  color:rgba(220,230,220,.78);
  padding:80px 0 0;
  font-size:.9rem;
}
.footer-brand{
  font-family:"Noto Serif SC","Source Han Serif SC","Songti SC","SimSun",serif;
  font-size:1.3rem;
  font-weight:700;
  color:#fff;
  margin-bottom:12px;
  display:block;
}
.footer .brand-gap{
  color:var(--accent);
}
.footer-desc{
  color:rgba(220,230,220,.55);
  line-height:1.85;
  margin-bottom:0;
  max-width:320px;
}
.footer h5{
  font-size:.84rem;
  color:rgba(255,255,255,.44);
  letter-spacing:.1em;
  text-transform:uppercase;
  margin-bottom:16px;
  font-weight:600;
}
.footer-links{
  list-style:none;
  padding:0;
  margin:0;
}
.footer-links li{
  margin-bottom:8px;
}
.footer-links a{
  color:rgba(222,230,224,.72);
  transition:color .2s var(--ease), padding-left .2s var(--ease);
}
.footer-links a:hover{
  color:var(--accent);
  padding-left:4px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  margin-top:64px;
  padding:18px 0;
  color:rgba(220,230,220,.4);
  font-size:.78rem;
}
@media(max-width:991px){
  .site-header .navbar-collapse{
    background:#f6f7f3;
    border-radius:12px;
    margin-top:12px;
    padding:18px;
    box-shadow:0 16px 40px rgba(10,30,23,.16);
  }
  .site-header .nav-link,
  .site-header .dropdown-toggle{
    color:var(--ink) !important;
  }
  .site-header .nav-link::after{
    left:0;
  }
  .site-header .nav-link.active{
    color:var(--primary);
  }
  .header-tools{
    margin:16px 0 4px;
    flex-direction:column;
    align-items:flex-start;
  }
  .header-tools .mega-dropdown{
    width:100%;
  }
  .mega-toggle{
    color:var(--ink);
    background:rgba(10,91,78,.06);
    width:100%;
    justify-content:space-between;
  }
  .mega-panel{
    width:100%;
    margin:8px 0;
    box-shadow:none;
    border:1px solid var(--border);
    position:static;
    transform:none;
  }
  .mega-panel::before{
    display:none;
  }
  .hero{
    min-height:auto;
    padding-top:120px;
  }
  .hero-panel{
    margin:36px auto 0;
  }
}
@media(max-width:767px){
  .section{
    padding:54px 0;
  }
  .overview-block{
    padding:54px 0;
  }
  .overview-media img{
    height:300px;
  }
  .overview-note{
    left:12px;
    bottom:-16px;
  }
  .overview-feature{
    padding-left:0;
    margin-top:48px;
  }
  .step-row{
    gap:16px;
  }
  .step-row::before{
    left:31px;
  }
  .step-num{
    flex:0 0 48px;
    width:48px;
    height:48px;
    font-size:1rem;
  }
  .news-list{
    grid-template-columns:1fr;
  }
  .mega-panel{
    padding:18px;
  }
}
@media(max-width:520px){
  .section-title{
    font-size:1.45rem;
  }
  .hero-desc{
    font-size:.98rem;
  }
  .hero-btns .btn{
    width:100%;
  }
  .hero-badges{
    justify-content:center;
  }
  .btn{
    padding:11px 20px;
  }
  .cta-buttons .btn{
    width:100%;
  }
}
@media(prefers-reduced-motion:reduce){
  html{
    scroll-behavior:auto;
  }
  *,
  *::before,
  *::after{
    animation-duration:.01ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.01ms !important;
  }
}

/* roulang page: article */
/* ============ 设计变量 ============ */
        :root {
            --bg: #F4F5F1;
            --bg-alt: #EAF0EA;
            --surface: #FFFFFF;
            --dark-bg: #0C1B18;
            --dark-bg-2: #123330;
            --primary: #0A5B4E;
            --primary-hover: #0E6E5C;
            --accent: #C6A34A;
            --ink: #1C2521;
            --muted: #6D7771;
            --border: rgba(20, 45, 38, 0.12);
            --fs-body: 1rem;
            --fs-caption: 0.85rem;
            --shadow-sm: 0 4px 16px rgba(18, 45, 32, 0.06);
            --shadow-lg: 0 12px 32px rgba(18, 45, 32, 0.10);
            --radius-card: 8px;
            --radius-btn: 4px;
        }

        /* ============ 基础 Reset ============ */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            margin: 0;
            padding: 0;
            font-family: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
            background: var(--bg);
            color: var(--ink);
            font-size: var(--fs-body);
            line-height: 1.85;
            -webkit-font-smoothing: antialiased;
        }
        img {
            max-width: 100%;
            height: auto;
            display: inline-block;
        }
        a {
            text-decoration: none;
            color: var(--primary);
            transition: color 0.2s ease;
        }
        a:hover {
            color: var(--primary-hover);
        }
        ul,
        ol {
            padding-left: 1.5rem;
        }
        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
            color: var(--ink);
            line-height: 1.4;
            margin-top: 0;
            letter-spacing: 0.01em;
        }
        .container {
            max-width: 1200px;
        }

        /* ============ Header / 导航 ============ */
        .site-header {
            background: var(--bg);
            height: 68px;
            display: flex;
            align-items: center;
            border-bottom: 1px solid var(--border);
            position: sticky;
            top: 0;
            z-index: 1000;
        }
        .site-header .navbar {
            padding: 0;
            width: 100%;
            background: transparent;
        }
        .brand-logo {
            display: flex;
            align-items: center;
            gap: 0;
            line-height: 1.2;
            flex-direction: column;
            align-items: flex-start;
        }
        .brand-text {
            font-size: 1.45rem;
            font-weight: 700;
            color: var(--primary);
            font-family: "Noto Serif SC", "Source Han Serif SC", serif;
            letter-spacing: 0.02em;
        }
        .brand-text .brand-gap {
            color: var(--accent);
            margin-left: 0.1em;
        }
        .brand-sub {
            font-size: 0.68rem;
            color: var(--muted);
            letter-spacing: 0.08em;
            margin-top: -2px;
        }
        .navbar-nav {
            gap: 0.25rem;
        }
        .nav-link {
            color: var(--ink) !important;
            font-size: 0.95rem;
            font-weight: 500;
            padding: 0.5rem 0.9rem !important;
            position: relative;
            transition: color 0.2s ease;
        }
        .nav-link::after {
            content: "";
            position: absolute;
            left: 0.9rem;
            right: 0.9rem;
            bottom: 0;
            height: 2px;
            background: var(--primary);
            transform: scaleX(0);
            transform-origin: center;
            transition: transform 0.25s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }
        .nav-link:hover::after,
        .nav-link.active::after {
            transform: scaleX(1);
        }
        .nav-link.active {
            color: var(--primary) !important;
            font-weight: 600;
        }
        .header-tools {
            display: flex;
            align-items: center;
            gap: 0.75rem;
        }
        .mega-toggle {
            font-size: 0.95rem;
            color: var(--ink);
            padding: 0.4rem 0.6rem;
            display: flex;
            align-items: center;
            gap: 0.3rem;
            border: 1px solid var(--border);
            border-radius: var(--radius-btn);
            transition: border-color 0.2s;
        }
        .mega-toggle:hover {
            border-color: var(--primary);
        }
        .mega-toggle svg {
            width: 14px;
            height: 14px;
        }
        .mega-panel {
            border-radius: 12px;
            border: 1px solid var(--border);
            box-shadow: 0 12px 40px rgba(18, 45, 32, 0.12);
            padding: 1.5rem;
            background: var(--surface);
            min-width: 640px;
        }
        .mega-title {
            font-size: 0.85rem;
            color: var(--primary);
            margin-bottom: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.05em;
        }
        .mega-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .mega-links li a {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 0.5rem 0;
            font-size: 0.92rem;
            color: var(--ink);
            border-bottom: 1px dashed rgba(20, 45, 38, 0.08);
        }
        .mega-links li a span {
            color: var(--muted);
            font-size: 0.8rem;
        }
        .mega-entries {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .mega-entries li {
            padding: 0.5rem 0;
            border-bottom: 1px dashed rgba(20, 45, 38, 0.08);
        }
        .mega-entries time {
            display: block;
            font-size: 0.75rem;
            color: var(--accent);
            margin-bottom: 0.15rem;
        }
        .mega-entries a {
            font-size: 0.88rem;
            color: var(--ink);
        }
        .mega-cover {
            border-radius: 8px;
            overflow: hidden;
            position: relative;
            height: 140px;
            background: var(--bg-alt);
        }
        .mega-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .mega-cover-title {
            position: absolute;
            bottom: 0.5rem;
            left: 0.5rem;
            right: 0.5rem;
            background: rgba(12, 27, 24, 0.72);
            padding: 0.4rem 0.6rem;
            border-radius: 6px;
            font-size: 0.82rem;
            color: #fff;
        }
        .btn-header-entry {
            background: var(--primary);
            color: #fff;
            border: none;
            border-radius: var(--radius-btn);
            padding: 0.45rem 1.1rem;
            font-size: 0.9rem;
            font-weight: 500;
            white-space: nowrap;
            transition: background 0.2s ease;
        }
        .btn-header-entry:hover {
            background: var(--primary-hover);
            color: #fff;
        }
        .navbar-toggler {
            border: none;
            padding: 0.3rem 0.5rem;
        }
        .navbar-toggler:focus {
            box-shadow: none;
        }
        .navbar-toggler-icon {
            background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%230A5B4E' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
        }

        /* ============ 文章页面布局 ============ */
        .article-hero {
            padding: 3rem 0 0.5rem;
            background: var(--bg);
        }
        .article-breadcrumb {
            font-size: 0.85rem;
            color: var(--muted);
            margin-bottom: 1.5rem;
        }
        .article-breadcrumb a {
            color: var(--muted);
            transition: color 0.2s;
        }
        .article-breadcrumb a:hover {
            color: var(--primary);
        }
        .article-breadcrumb .sep {
            margin: 0 0.5rem;
            color: rgba(20, 45, 38, 0.3);
        }
        .article-heading {
            font-size: clamp(1.9rem, 3vw, 2.6rem);
            font-weight: 600;
            line-height: 1.35;
            margin-bottom: 1rem;
            max-width: 860px;
            color: var(--ink);
        }
        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 1rem;
            font-size: 0.85rem;
            color: var(--muted);
            padding-bottom: 1.5rem;
            border-bottom: 1px solid var(--border);
            margin-bottom: 0;
        }
        .article-meta .meta-cat {
            color: var(--primary);
            font-weight: 500;
            background: rgba(10, 91, 78, 0.08);
            padding: 0.15rem 0.7rem;
            border-radius: 30px;
            font-size: 0.8rem;
        }
        .article-body {
            max-width: 860px;
            margin: 0 auto;
            padding: 2.5rem 0 0.5rem;
            font-size: 1rem;
            line-height: 1.9;
            color: #26302b;
        }
        .article-body p {
            margin-bottom: 1.4rem;
            line-height: 1.9;
        }
        .article-body h2 {
            font-size: 1.45rem;
            font-weight: 600;
            padding-left: 0.9rem;
            border-left: 3px solid var(--primary);
            margin: 2rem 0 1rem;
            line-height: 1.4;
        }
        .article-body h3 {
            font-size: 1.2rem;
            font-weight: 600;
            margin: 1.8rem 0 0.8rem;
        }
        .article-body blockquote {
            border-left: 3px solid var(--primary);
            background: rgba(244, 245, 241, 1);
            padding: 0.9rem 1.2rem;
            margin: 1.4rem 0;
            font-size: 0.95rem;
            color: var(--muted);
            border-radius: 0 6px 6px 0;
        }
        .article-body table {
            width: 100%;
            border-collapse: collapse;
            margin: 1.4rem 0;
            font-size: 0.92rem;
        }
        .article-body table th,
        .article-body table td {
            border: 1px solid rgba(20, 45, 38, 0.15);
            padding: 0.6rem 0.8rem;
        }
        .article-body table th {
            background: var(--bg-alt);
            font-weight: 600;
        }
        .article-body img {
            border-radius: 6px;
            margin: 1rem 0;
        }
        .article-body ul,
        .article-body ol {
            margin-bottom: 1.2rem;
        }
        .article-body li {
            margin-bottom: 0.35rem;
        }
        .article-empty {
            background: var(--surface);
            border-radius: var(--radius-card);
            text-align: center;
            padding: 4rem 1.5rem;
            margin: 1rem 0;
            box-shadow: var(--shadow-sm);
        }
        .empty-icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 1rem;
            background: var(--bg-alt);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
        }
        .empty-icon svg {
            width: 26px;
            height: 26px;
            stroke: var(--primary);
        }
        .empty-title {
            font-size: 1rem;
            color: var(--muted);
            margin-bottom: 1rem;
        }

        /* ============ 文章底部工具 ============ */
        .article-toolbar {
            max-width: 860px;
            margin: 1.5rem auto 0;
            padding: 1rem 0;
            border-top: 1px solid var(--border);
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 0.8rem;
        }
        .toolbar-cat {
            font-size: 0.9rem;
            color: var(--muted);
        }
        .toolbar-cat a {
            color: var(--primary);
            font-weight: 500;
        }
        .btn-back-top {
            display: inline-flex;
            align-items: center;
            gap: 0.3rem;
            font-size: 0.8rem;
            color: var(--muted);
            border: 1px solid var(--border);
            padding: 0.3rem 0.8rem;
            border-radius: 30px;
            background: var(--surface);
            transition: all 0.2s;
        }
        .btn-back-top:hover {
            color: var(--primary);
            border-color: var(--primary);
        }

        /* ============ 相关推荐 ============ */
        .related-section {
            padding: 3.5rem 0 4rem;
            max-width: 1200px;
            margin: 0 auto;
        }
        .related-section .section-head {
            display: flex;
            justify-content: space-between;
            align-items: baseline;
            margin-bottom: 1.5rem;
        }
        .related-title {
            font-size: 1.5rem;
            font-weight: 600;
            position: relative;
            padding-bottom: 0.5rem;
        }
        .related-title::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 44px;
            height: 3px;
            background: var(--accent);
            border-radius: 2px;
        }
        .related-card-link {
            display: flex;
            font-size: 0.85rem;
            color: var(--primary);
            font-weight: 500;
            gap: 0.3rem;
            align-items: center;
            border-bottom: none;
        }
        .related-card-link:hover {
            color: var(--accent);
        }
        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 1.5rem;
        }
        .related-card {
            background: var(--surface);
            border-radius: var(--radius-card);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: transform 0.2s, box-shadow 0.2s;
            text-decoration: none;
            display: block;
        }
        .related-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-lg);
        }
        .related-card .card-cover {
            width: 100%;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--bg-alt);
        }
        .related-card .card-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .related-card .card-body {
            padding: 1.1rem;
        }
        .card-tag {
            display: inline-block;
            background: rgba(10, 91, 78, 0.08);
            color: var(--primary);
            font-size: 0.72rem;
            border-radius: 30px;
            padding: 0.1rem 0.6rem;
            margin-bottom: 0.5rem;
        }
        .related-card .card-title {
            font-size: 0.95rem;
            font-weight: 600;
            line-height: 1.5;
            margin-bottom: 0.4rem;
            color: var(--ink);
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }
        .related-card .card-excerpt {
            font-size: 0.82rem;
            color: var(--muted);
            line-height: 1.6;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin-bottom: 0.35rem;
        }
        .related-card .card-date {
            font-size: 0.75rem;
            color: rgba(20, 45, 38, 0.5);
        }

        /* ============ CTA 区块 ============ */
        .entry-cta {
            background: var(--dark-bg);
            padding: 3.5rem 0;
            text-align: center;
        }
        .entry-cta h2 {
            color: #fff;
            font-size: 1.7rem;
            font-weight: 600;
            margin-bottom: 0.5rem;
        }
        .entry-cta p {
            color: rgba(220, 235, 228, 0.65);
            font-size: 0.95rem;
            margin-bottom: 1.8rem;
            max-width: 640px;
            margin-left: auto;
            margin-right: auto;
        }
        .btn-cta-gold {
            display: inline-block;
            background: var(--accent);
            color: #14211c;
            font-weight: 600;
            padding: 0.75rem 2.2rem;
            border-radius: var(--radius-btn);
            font-size: 1.02rem;
            border: none;
            transition: background 0.2s ease, transform 0.2s ease;
        }
        .btn-cta-gold:hover {
            background: #D4AF54;
            color: #14211c;
            transform: translateY(-1px);
            box-shadow: 0 6px 24px rgba(198, 163, 74, 0.3);
        }
        .btn-cta-gold:focus-visible {
            outline: 2px solid var(--accent);
            outline-offset: 3px;
        }

        /* ============ Footer ============ */
        .footer {
            background: var(--dark-bg);
            padding: 4rem 0 0;
            color: rgba(230, 240, 233, 0.8);
        }
        .footer-brand {
            font-size: 1.3rem;
            font-weight: 700;
            color: #fff;
            font-family: "Noto Serif SC", "Source Han Serif SC", serif;
            display: inline-block;
            margin-bottom: 0.8rem;
        }
        .footer-brand .brand-gap {
            color: var(--accent);
            margin-left: 0.1em;
        }
        .footer-desc {
            font-size: 0.85rem;
            line-height: 1.9;
            color: rgba(230, 240, 233, 0.55);
            margin-bottom: 0;
        }
        .footer h5 {
            color: #fff;
            font-size: 0.95rem;
            font-weight: 600;
            margin-bottom: 1rem;
            letter-spacing: 0.03em;
        }
        .footer-links {
            list-style: none;
            padding: 0;
            margin: 0;
        }
        .footer-links li {
            margin-bottom: 0.45rem;
        }
        .footer-links a {
            color: rgba(230, 240, 233, 0.55);
            font-size: 0.88rem;
            transition: color 0.2s;
        }
        .footer-links a:hover {
            color: #fff;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.08);
            margin-top: 3rem;
            padding: 1.2rem 0;
            font-size: 0.78rem;
            color: rgba(230, 240, 233, 0.35);
            text-align: center;
        }

        /* ============ 响应式设计 ============ */
        @media (max-width: 992px) {
            .site-header {
                height: auto;
                min-height: 62px;
            }
            .navbar-collapse {
                background: var(--bg);
                padding: 1rem;
                border-radius: 0 0 12px 12px;
                border-bottom: 1px solid var(--border);
            }
            .nav-link {
                padding: 0.6rem 0.5rem !important;
            }
            .nav-link::after {
                left: 0.5rem;
                right: 0.5rem;
            }
            .mega-panel {
                min-width: 100%;
                border-radius: 8px;
                margin-top: 0.5rem;
            }
            .header-tools {
                margin-top: 0.8rem;
                width: 100%;
            }
            .btn-header-entry {
                width: 100%;
                text-align: center;
            }
            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }
        }
        @media (max-width: 768px) {
            .article-heading {
                font-size: 1.35rem;
            }
            .mega-cover {
                display: none;
            }
            .footer .row {
                row-gap: 2rem;
            }
            .footer-bottom span {
                display: block;
                line-height: 1.8;
            }
        }
        @media (max-width: 520px) {
            .article-meta {
                gap: 0.6rem;
            }
            .related-grid {
                grid-template-columns: 1fr;
            }
            .article-body {
                font-size: 0.95rem;
                padding: 1.5rem 0 0;
            }
            .article-toolbar {
                flex-direction: column;
                align-items: flex-start;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: 0.01ms !important;
                animation-iteration-count: 1 !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category2 */
:root {
  --bg: #F4F5F1;
  --bg-alt: #EAF0EA;
  --surface: #ffffff;
  --dark-bg: #0C1B18;
  --dark-bg-2: #123330;
  --primary: #0A5B4E;
  --primary-hover: #0E6E5C;
  --accent: #C6A34A;
  --ink: #1C2521;
  --muted: #6D7771;
  --border: rgba(20, 45, 38, 0.12);
  --fs-display-1: clamp(2.1rem, 4.2vw, 3.35rem);
  --fs-display-2: clamp(1.7rem, 2.6vw, 2.4rem);
  --fs-h3: 1.2rem;
  --fs-body: 1rem;
  --fs-caption: .85rem;
  --radius-card: 8px;
  --radius-img: 6px;
  --radius-btn: 4px;
  --radius-mega: 12px;
  --shadow-card: 0 4px 16px rgba(18, 45, 32, 0.06);
  --shadow-hover: 0 12px 32px rgba(18, 45, 32, 0.10);
  --shadow-mega: 0 14px 40px rgba(12, 35, 28, 0.14);
  --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-body: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--primary);
  text-decoration: none;
}

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

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

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

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--ink);
  line-height: 1.35;
}

h1 {
  letter-spacing: .01em;
}

.container {
  max-width: 1200px;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===== 按钮 ===== */
.btn {
  border-radius: var(--radius-btn);
  padding: 12px 24px;
  font-weight: 600;
  font-size: .95rem;
  line-height: 1.5;
  transition: all .25s cubic-bezier(.25, .46, .45, .94);
  border: 1px solid transparent;
}

.btn-main {
  background: var(--primary);
  color: #fff;
}

.btn-main:hover,
.btn-main:focus {
  background: var(--primary-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 22px rgba(10, 91, 78, .18);
}

.btn-ghost {
  background: transparent;
  border-color: var(--primary);
  color: var(--primary);
}

.btn-ghost:hover,
.btn-ghost:focus {
  background: rgba(10, 91, 78, .08);
  color: var(--primary);
}

.btn-accent {
  background: var(--accent);
  color: var(--dark-bg);
}

.btn-accent:hover,
.btn-accent:focus {
  background: #d7b768;
  color: var(--dark-bg);
  transform: translateY(-2px);
  box-shadow: 0 12px 28px rgba(0, 0, 0, .16);
}

.btn-outline-light {
  background: transparent;
  border-color: rgba(255, 255, 255, .42);
  color: #fff;
}

.btn-outline-light:hover,
.btn-outline-light:focus {
  background: rgba(255, 255, 255, .08);
  border-color: rgba(255, 255, 255, .78);
  color: #fff;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1060;
  background: rgba(244, 245, 241, .86);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.site-header .navbar {
  min-height: 68px;
  padding: 0;
}

.brand-logo {
  display: inline-flex;
  flex-direction: column;
  justify-content: center;
  line-height: 1.12;
  min-width: 150px;
}

.brand-text {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--ink);
  letter-spacing: .02em;
}

.brand-gap {
  color: var(--accent);
  font-weight: 600;
}

.brand-sub {
  font-size: .66rem;
  color: var(--muted);
  letter-spacing: .34em;
  margin-top: 3px;
}

.navbar-nav {
  gap: 4px;
}

.navbar-nav .nav-link {
  color: var(--ink);
  font-size: .95rem;
  font-weight: 500;
  padding: 10px 14px;
  position: relative;
  border-radius: 4px;
  transition: color .2s ease;
}

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

.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active {
  color: var(--primary);
  font-weight: 600;
}

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

.header-tools {
  display: flex;
  align-items: center;
  gap: 12px;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  padding: 8px 16px;
  border-radius: var(--radius-btn);
  background: var(--primary);
  color: #fff;
  font-size: .87rem;
  font-weight: 600;
  white-space: nowrap;
  border: 1px solid transparent;
  transition: all .25s ease;
}

.header-cta:hover {
  background: var(--primary-hover);
  color: #fff;
  transform: translateY(-1px);
}

.mega-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink);
  font-size: .9rem;
  font-weight: 600;
  padding: 8px 6px;
  border-radius: 4px;
}

.mega-toggle:hover {
  color: var(--primary);
}

.mega-toggle svg {
  width: 15px;
  height: 15px;
  opacity: .75;
}

.mega-panel {
  width: 720px;
  max-width: calc(100vw - 24px);
  border: 1px solid var(--border);
  border-radius: var(--radius-mega);
  box-shadow: var(--shadow-mega);
  padding: 24px 22px;
  background: var(--surface);
  margin-top: 10px;
}

.mega-panel::before {
  content: "";
  position: absolute;
  top: -8px;
  right: 60px;
  width: 14px;
  height: 14px;
  background: var(--surface);
  border-left: 1px solid var(--border);
  border-top: 1px solid var(--border);
  transform: rotate(45deg);
}

.mega-title {
  font-family: var(--font-display);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 14px;
}

.mega-links li + li,
.mega-entries li + li {
  margin-top: 10px;
}

.mega-links a {
  display: block;
  padding: 7px 0;
  color: var(--ink);
  font-weight: 500;
  font-size: .95rem;
}

.mega-links a span {
  display: block;
  color: var(--muted);
  font-size: .77rem;
  margin-top: 2px;
  font-weight: 400;
}

.mega-links a:hover {
  color: var(--primary);
}

.mega-entries li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  font-size: .88rem;
}

.mega-entries time {
  flex: 0 0 auto;
  color: var(--accent);
  font-size: .76rem;
  background: rgba(198, 163, 74, .12);
  padding: 2px 8px;
  border-radius: 10px;
}

.mega-entries a {
  color: var(--ink);
  line-height: 1.55;
}

.mega-entries a:hover {
  color: var(--primary);
}

.mega-media {
  border-radius: 10px;
  overflow: hidden;
  background: var(--dark-bg-2);
  position: relative;
  height: 100%;
  min-height: 148px;
}

.mega-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: .72;
}

.mega-media-body {
  position: absolute;
  inset: 0;
  padding: 18px;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  background: linear-gradient(180deg, rgba(12, 27, 24, 0), rgba(12, 27, 24, .88));
}

.mega-media-body span {
  color: var(--accent);
  font-size: .78rem;
  margin-bottom: 4px;
}

.mega-media-body p {
  color: #fff;
  font-size: .92rem;
  font-weight: 600;
  line-height: 1.5;
  margin-bottom: 6px;
}

.mega-media-body a {
  color: rgba(255, 255, 255, .8);
  font-size: .8rem;
  text-decoration: underline;
  text-underline-offset: 4px;
}

.mega-media-body a:hover {
  color: #fff;
}

.navbar-toggler {
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--surface);
}

.navbar-toggler:focus {
  box-shadow: 0 0 0 2px rgba(10, 91, 78, .25);
}

/* ===== 分类页主区 ===== */
.page-main {
  overflow: hidden;
}

/* Hero */
.cat-hero {
  padding: 72px 0 64px;
  background: var(--bg);
}

.cat-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .82rem;
  color: var(--primary);
  background: rgba(10, 91, 78, .08);
  border-radius: 18px;
  padding: 6px 14px;
  font-weight: 600;
  letter-spacing: .02em;
  margin-bottom: 20px;
}

.cat-hero .eyebrow i {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}

.cat-hero h1 {
  font-size: var(--fs-display-1);
  font-weight: 600;
  margin: 0 0 18px;
  letter-spacing: .01em;
  color: var(--ink);
}

.cat-hero h1 .h1-sub {
  display: block;
  color: var(--primary);
  font-size: .58em;
  font-weight: 600;
  margin-top: 10px;
  letter-spacing: .02em;
}

.hero-lead {
  color: var(--muted);
  font-size: 1.04rem;
  line-height: 1.9;
  margin: 0 0 22px;
  max-width: 520px;
}

.hero-mentions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}

.hero-mentions li {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 6px 14px;
  font-size: .82rem;
  color: var(--ink);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.page-figure {
  position: relative;
}

.page-figure img {
  width: 100%;
  border-radius: var(--radius-img);
  box-shadow: 0 22px 44px rgba(18, 45, 32, .14);
  object-fit: cover;
  aspect-ratio: 5 / 4;
}

.figure-sticker {
  position: absolute;
  right: 16px;
  bottom: 16px;
  background: rgba(12, 27, 24, .78);
  color: #fff;
  border-radius: 6px;
  padding: 10px 14px;
  font-size: .8rem;
  line-height: 1.5;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border: 1px solid rgba(198, 163, 74, .2);
}

.figure-sticker em {
  font-style: normal;
  color: var(--accent);
  font-weight: 700;
}

/* ===== Section 通用 ===== */
.section-common {
  padding: 76px 0;
}

.section-head {
  max-width: 520px;
  margin-bottom: 38px;
}

.section-head .overline {
  color: var(--accent);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .16em;
  margin-bottom: 6px;
  display: block;
}

.section-head h2 {
  font-size: var(--fs-display-2);
  font-weight: 600;
  margin: 0 0 12px;
}

.section-head p {
  color: var(--muted);
  font-size: .95rem;
  line-height: 1.8;
  margin: 0;
}

/* ===== 步骤区 ===== */
.guide-steps {
  background: var(--surface);
  padding: 76px 0;
}

.step-layout {
  display: grid;
  grid-template-columns: 420px 1fr;
  gap: 56px;
  align-items: start;
}

.step-side {
  position: sticky;
  top: 100px;
  background: var(--bg-alt);
  border-radius: var(--radius-card);
  padding: 28px;
  border: 1px solid rgba(10, 91, 78, .08);
}

.step-side .icon-mark {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--primary);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 14px;
}

.step-side h2 {
  font-family: var(--font-display);
  font-size: 1.65rem;
  font-weight: 600;
  line-height: 1.45;
  margin: 0 0 14px;
}

.step-side p {
  color: var(--muted);
  font-size: .94rem;
  margin: 0;
}

.steps-line {
  position: relative;
  padding-left: 10px;
}

.steps-line::before {
  content: "";
  position: absolute;
  left: 29px;
  top: 28px;
  bottom: 28px;
  width: 1px;
  background: linear-gradient(180deg, var(--primary) 0%, var(--border) 100%);
}

.step-item {
  position: relative;
  display: grid;
  grid-template-columns: 60px 1fr;
  gap: 18px;
  padding: 18px 0 18px 14px;
}

.step-num {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-size: 1.2rem;
  font-weight: 700;
  position: relative;
  z-index: 1;
}

.step-body h3 {
  font-size: 1.16rem;
  font-weight: 600;
  margin: 2px 0 6px;
}

.step-body p {
  color: var(--muted);
  font-size: .93rem;
  line-height: 1.85;
  margin: 0;
}

/* ===== 场景区 ===== */
.scene-section {
  background: var(--bg-alt);
  padding: 76px 0;
}

.scene-photo {
  margin: 0;
}

.scene-photo img {
  width: 100%;
  border-radius: var(--radius-img);
  aspect-ratio: 4 / 3;
  object-fit: cover;
  box-shadow: var(--shadow-card);
}

.scene-list {
  margin-top: 6px;
}

.scene-list > li {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 16px;
  padding: 22px 0;
  border-bottom: 1px solid rgba(20, 45, 38, .1);
}

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

.scene-index {
  color: var(--accent);
  font-family: var(--font-display);
  font-size: 1.45rem;
  line-height: 1;
  margin-top: 4px;
}

.scene-content h3 {
  font-size: 1.06rem;
  font-weight: 600;
  margin: 0 0 5px;
}

.scene-content p {
  color: var(--muted);
  font-size: .92rem;
  margin: 0 0 7px;
  max-width: 560px;
}

.scene-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.scene-tags span {
  background: var(--surface);
  border: 1px solid rgba(20, 45, 38, .1);
  border-radius: 16px;
  padding: 3px 11px;
  font-size: .76rem;
  color: var(--ink);
}

/* ===== 检查清单区 ===== */
.check-section {
  background: var(--surface);
  padding: 76px 0;
}

.check-block {
  background: var(--dark-bg);
  border-radius: 16px;
  padding: 44px 40px;
  color: rgba(255, 255, 255, .75);
  position: relative;
  overflow: hidden;
}

.check-block::before {
  content: "";
  position: absolute;
  right: -80px;
  top: -80px;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: rgba(198, 163, 74, .08);
}

.check-block .row {
  position: relative;
  z-index: 1;
}

.check-head h2 {
  color: #fff;
  font-size: var(--fs-display-2);
  margin: 0 0 14px;
}

.check-head p {
  color: rgba(255, 255, 255, .72);
  font-size: .95rem;
  line-height: 1.9;
  margin: 0;
}

.check-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.check-list li {
  display: flex;
  gap: 12px;
  align-items: flex-start;
  background: rgba(255, 255, 255, .04);
  border-left: 2px solid var(--accent);
  border-radius: 4px;
  padding: 10px 14px;
  line-height: 1.75;
  font-size: .93rem;
  color: rgba(255, 255, 255, .85);
}

.check-list li::before {
  content: "";
  flex: 0 0 auto;
  width: 16px;
  height: 16px;
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  margin-top: 5px;
  box-shadow: inset 0 0 0 3px var(--dark-bg);
}

.check-tip {
  margin-top: 22px;
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: rgba(255, 255, 255, .65);
  font-size: .84rem;
  line-height: 1.75;
  padding-top: 18px;
  border-top: 1px solid rgba(255, 255, 255, .12);
}

/* ===== 底部 CTA ===== */
.section-cta {
  padding: 76px 0;
  background: var(--bg);
}

.cta-banner {
  background: linear-gradient(105deg, rgba(12, 27, 24, .92), rgba(18, 51, 48, .9)), url('/assets/images/backpic/back-3.png') center/cover;
  border-radius: 16px;
  padding: clamp(30px, 4vw, 56px);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 28px;
  box-shadow: 0 16px 36px rgba(12, 27, 24, .22);
  border: 1px solid rgba(255, 255, 255, .06);
}

.cta-copy {
  max-width: 640px;
}

.cta-copy h2 {
  color: #fff;
  font-size: var(--fs-display-2);
  font-weight: 600;
  margin: 0 0 10px;
}

.cta-copy p {
  color: rgba(255, 255, 255, .72);
  font-size: .96rem;
  margin: 0;
}

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

.cta-actions .btn {
  min-width: 170px;
}

/* ===== Footer ===== */
.footer {
  background: var(--dark-bg);
  padding: 64px 0 26px;
  color: rgba(255, 255, 255, .78);
}

.footer-brand {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 1.42rem;
  color: #fff;
  font-weight: 600;
  margin-bottom: 16px;
}

.footer-brand .brand-gap {
  color: var(--accent);
}

.footer-desc {
  color: rgba(255, 255, 255, .6);
  font-size: .88rem;
  line-height: 1.9;
  margin: 0;
  max-width: 340px;
}

.footer h5 {
  color: rgba(255, 255, 255, .9);
  font-size: 1rem;
  font-family: var(--font-body);
  font-weight: 600;
  margin-bottom: 18px;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  color: rgba(255, 255, 255, .58);
  font-size: .88rem;
  transition: color .2s ease, padding-left .2s ease;
}

.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-bottom {
  margin-top: 42px;
  padding-top: 20px;
  border-top: 1px solid rgba(255, 255, 255, .08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  color: rgba(255, 255, 255, .42);
  font-size: .82rem;
}

/* ===== Responsive ===== */
@media (max-width: 1199.98px) {
  .mega-panel {
    width: 660px;
  }

  .step-layout {
    grid-template-columns: 330px 1fr;
    gap: 30px;
  }
}

@media (max-width: 991.98px) {
  .site-header .navbar-collapse {
    background: var(--bg);
    border-radius: 10px;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-card);
    padding: 18px;
    margin-top: 10px;
  }

  .navbar-nav {
    gap: 0;
  }

  .navbar-nav .nav-link {
    padding: 10px 6px;
  }

  .header-tools {
    margin-left: 0;
    margin-top: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .header-cta {
    justify-content: center;
  }

  .mega-panel {
    width: 100%;
    box-shadow: none;
    border: 0;
    padding: 0;
    background: transparent;
  }

  .mega-panel::before {
    display: none;
  }

  .mega-media {
    min-height: 118px;
    margin-top: 16px;
  }

  .dropdown-menu {
    position: static !important;
    transform: none !important;
  }

  .step-layout {
    grid-template-columns: 1fr;
    gap: 34px;
  }

  .step-side {
    position: static;
  }

  .section-common,
  .guide-steps,
  .scene-section,
  .check-section,
  .section-cta {
    padding: 56px 0;
  }

  .cta-banner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 767.98px) {
  .cat-hero {
    padding: 46px 0 42px;
  }

  .cat-hero h1 {
    font-size: clamp(1.8rem, 6vw, 2.35rem);
  }

  .cta-actions .btn {
    min-width: 0;
    flex: 1 1 100%;
  }

  .footer {
    padding-top: 48px;
  }
}

@media (max-width: 575.98px) {
  .check-block {
    padding: 30px 20px;
  }

  .step-item {
    grid-template-columns: 52px 1fr;
    gap: 12px;
    padding-left: 0;
  }

  .steps-line::before {
    left: 24px;
  }

  .scene-list > li {
    grid-template-columns: 34px 1fr;
    gap: 10px;
  }

  .section-common,
  .guide-steps,
  .scene-section,
  .check-section,
  .section-cta {
    padding: 42px 0;
  }

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

@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: category1 */
:root {
  --bg: #F4F5F1;
  --bg-alt: #EAF0EA;
  --surface: #FFFFFF;
  --dark-bg: #0C1B18;
  --dark-bg-2: #123330;
  --primary: #0A5B4E;
  --primary-hover: #0E6E5C;
  --accent: #C6A34A;
  --accent-hover: #D6B65B;
  --ink: #1C2521;
  --muted: #6D7771;
  --border: rgba(20, 45, 38, 0.12);
  --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
  --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --fs-display-1: clamp(2rem, 4.2vw, 3.4rem);
  --fs-display-2: clamp(1.6rem, 2.8vw, 2.4rem);
  --fs-h3: clamp(1.15rem, 1.6vw, 1.35rem);
  --fs-body: 0.95rem;
  --fs-caption: 0.8rem;
  --radius-card: 8px;
  --radius-img: 6px;
  --radius-btn: 4px;
  --radius-panel: 12px;
  --shadow-card: 0 4px 16px rgba(18, 45, 32, 0.06);
  --shadow-hover: 0 12px 32px rgba(18, 45, 32, 0.10);
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  font-weight: 600;
  color: var(--ink);
  margin-top: 0;
}

p {
  margin-top: 0;
}

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

img {
  max-width: 100%;
  vertical-align: middle;
}

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

section {
  position: relative;
}

.container {
  max-width: 1220px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border-radius: var(--radius-btn);
  padding: 12px 24px;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.95rem;
  line-height: 1.4;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease), transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.btn::selection {
  background: transparent;
}

.btn.btn-solid {
  background: var(--primary);
  border: 1px solid var(--primary);
  color: #FFFFFF;
}

.btn.btn-solid:hover,
.btn.btn-solid:active {
  background: var(--primary-hover);
  border-color: var(--primary-hover);
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(10, 91, 78, 0.20);
}

.btn.btn-outline {
  background: transparent;
  border: 1px solid var(--primary);
  color: var(--primary);
}

.btn.btn-outline:hover,
.btn.btn-outline:active {
  background: rgba(10, 91, 78, 0.08);
}

.btn.btn-ghost-light {
  background: transparent;
  border: 1px solid rgba(255, 255, 255, 0.72);
  color: #FFFFFF;
}

.btn.btn-ghost-light:hover {
  background: rgba(255, 255, 255, 0.10);
  border-color: #FFFFFF;
  color: #FFFFFF;
}

.btn.btn-gold {
  background: var(--accent);
  border: 1px solid var(--accent);
  color: var(--dark-bg);
}

.btn.btn-gold:hover,
.btn.btn-gold:active {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
  color: var(--dark-bg);
  transform: translateY(-2px);
  box-shadow: 0 12px 30px rgba(198, 163, 74, 0.25);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--primary);
  font-weight: 600;
  border-bottom: 1px solid rgba(10, 91, 78, 0.35);
  padding-bottom: 1px;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}

.text-link:hover {
  color: var(--primary-hover);
  border-color: var(--primary-hover);
}

.section {
  padding: 80px 0;
}

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

.section-kicker {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--primary);
  background: rgba(10, 91, 78, 0.08);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.section-head {
  max-width: 720px;
  margin-bottom: 48px;
}

.title-center {
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

.section-head h2,
.section-head .h2 {
  font-size: var(--fs-display-2);
  line-height: 1.35;
  margin-bottom: 14px;
}

.section-head p,
.title-center p {
  color: var(--muted);
  margin-bottom: 0;
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1050;
  height: 68px;
  display: flex;
  align-items: center;
  background: rgba(12, 27, 24, 0.34);
  transition: background 0.3s var(--ease), box-shadow 0.3s var(--ease);
}

.site-header.is-scrolled {
  background: rgba(244, 245, 241, 0.94);
  box-shadow: 0 1px 0 rgba(20, 45, 38, 0.08);
  backdrop-filter: blur(10px);
}

.site-header .navbar {
  padding: 0;
  width: 100%;
}

.site-header .container {
  display: flex;
  align-items: center;
  flex-wrap: nowrap;
}

.brand-logo {
  display: inline-flex;
  align-items: baseline;
  gap: 0.25rem;
  text-decoration: none;
  line-height: 1.1;
  white-space: nowrap;
}

.brand-logo .brand-text {
  color: #FFFFFF;
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  transition: color 0.3s var(--ease);
}

.brand-logo .brand-gap {
  color: var(--accent);
}

.brand-logo .brand-sub {
  display: block;
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  color: rgba(236, 241, 237, 0.72);
  margin-left: 0.4rem;
  transition: color 0.3s var(--ease);
}

.site-header.is-scrolled .brand-text {
  color: var(--ink);
}

.site-header.is-scrolled .brand-sub {
  color: var(--primary);
}

.site-header.is-scrolled .navbar-toggler {
  border-color: rgba(12, 27, 24, 0.35);
}

.site-header.is-scrolled .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%2812,27,24,0.8%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.site-header .navbar-nav {
  column-gap: 0.4rem;
}

.site-header .nav-link {
  padding: 0.5rem 1rem;
  color: rgba(255, 255, 255, 0.92);
  font-weight: 500;
  position: relative;
  transition: color 0.25s var(--ease);
}

.site-header .nav-link::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 1rem;
  right: 1rem;
  height: 2px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s var(--ease);
}

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

.site-header .nav-link.active {
  color: #FFFFFF;
}

.site-header.is-scrolled .nav-link {
  color: var(--ink);
}

.site-header.is-scrolled .nav-link.active {
  color: var(--primary);
}

.site-header.is-scrolled .nav-link:hover {
  color: var(--primary);
}

.header-tools {
  display: flex;
  align-items: center;
  gap: 1.1rem;
  margin-left: 0.5rem;
}

.mega-toggle {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  font-size: 0.95rem;
  font-weight: 600;
  color: rgba(255, 255, 255, 0.92);
  text-decoration: none;
  padding: 8px 12px;
  border-radius: 4px;
  transition: background 0.25s var(--ease), color 0.25s var(--ease);
}

.mega-toggle svg {
  width: 14px;
  height: 14px;
}

.mega-toggle:hover {
  background: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
}

.site-header.is-scrolled .mega-toggle {
  color: var(--ink);
}

.site-header.is-scrolled .mega-toggle:hover {
  background: rgba(10, 91, 78, 0.08);
  color: var(--primary);
}

.dropdown-toggle::after {
  display: none !important;
}

.mega-dropdown {
  position: relative;
}

.mega-dropdown .dropdown-menu {
  display: block;
  width: 760px;
  max-width: 92vw;
  margin-top: 12px;
  padding: 26px;
  border: 0;
  border-radius: var(--radius-panel);
  background: var(--surface);
  box-shadow: 0 24px 60px rgba(12, 27, 24, 0.18);
  color: var(--ink);
  visibility: hidden;
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s;
}

.mega-dropdown:hover .dropdown-menu,
.mega-dropdown .dropdown-menu.show {
  visibility: visible;
  opacity: 1;
  pointer-events: auto;
  transform: translateY(0);
}

.mega-panel {
  top: calc(100% + 8px);
}

.mega-title {
  font-size: 1rem;
  color: var(--primary);
  margin-bottom: 0.65rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--border);
}

.mega-links,
.mega-entries {
  list-style: none;
  margin: 0;
  padding: 0;
}

.mega-links li + li,
.mega-entries li {
  border-bottom: 1px dashed rgba(20, 45, 38, 0.10);
}

.mega-links a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  padding: 9px 0;
  color: var(--ink);
  font-weight: 600;
  font-size: 0.92rem;
  text-decoration: none;
  transition: color 0.25s var(--ease);
}

.mega-links a:hover {
  color: var(--primary);
}

.mega-links span {
  color: var(--muted);
  font-weight: 400;
  font-size: 0.78rem;
}

.mega-entries li {
  display: flex;
  align-items: baseline;
  gap: 8px;
  padding: 10px 0;
}

.mega-entries time {
  flex-shrink: 0;
  width: 74px;
  color: var(--primary);
  font-size: 0.75rem;
}

.mega-entries a {
  display: block;
  color: var(--ink);
  font-size: 0.9rem;
  line-height: 1.55;
  text-decoration: none;
}

.mega-entries a:hover {
  color: var(--primary);
}

.mega-thumb-card {
  display: flex;
  flex-direction: column;
  background: var(--bg-alt);
  border-radius: var(--radius-card);
  overflow: hidden;
  color: var(--ink);
  text-decoration: none;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.mega-thumb-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-hover);
  color: var(--ink);
}

.mega-thumb-card img {
  width: 100%;
  height: 105px;
  object-fit: cover;
}

.mega-thumb-card .mega-thumb-body {
  padding: 12px 14px 14px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.mega-thumb-card strong {
  font-family: var(--font-display);
  font-size: 1rem;
}

.mega-thumb-card span {
  color: var(--muted);
  font-size: 0.82rem;
}

.mega-thumb-card em {
  font-style: normal;
  color: var(--primary);
  font-weight: 600;
  font-size: 0.8rem;
  margin-top: 3px;
}

.navbar-toggler {
  border: 1px solid rgba(255, 255, 255, 0.35);
  border-radius: var(--radius-btn);
  padding: 5px 10px;
}

.navbar-toggler:focus {
  box-shadow: none;
}

.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28244,245,241,0.9%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

/* ===== Page Hero ===== */
.page-hero {
  min-height: 460px;
  display: flex;
  align-items: center;
  padding: 130px 0 96px;
  background-color: var(--dark-bg);
  overflow: hidden;
}

.page-hero-bg {
  position: absolute;
  inset: 0;
  background-color: var(--dark-bg);
  background-size: cover;
  background-position: center;
}

.page-hero-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(12, 27, 24, 0.86), rgba(12, 27, 24, 0.68));
}

.page-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 850px;
  color: #FFFFFF;
}

.page-hero-inner h1 {
  font-size: clamp(2.2rem, 4.2vw, 3.4rem);
  line-height: 1.28;
  color: #FFFFFF;
  margin: 12px 0 18px;
  letter-spacing: 0.02em;
}

.hero-lead {
  max-width: 690px;
  font-size: 1.06rem;
  color: rgba(240, 246, 241, 0.9);
  line-height: 1.9;
  margin-bottom: 24px;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--accent);
  text-transform: uppercase;
}

.hero-eyebrow::before {
  content: "";
  width: 30px;
  height: 1px;
  background: var(--accent);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 10px;
}

.page-hero-inner .mini-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 44px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, 0.16);
}

.mini-tags span {
  display: inline-flex;
  padding: 7px 14px;
  border: 1px solid rgba(255, 255, 255, 0.20);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(240, 246, 241, 0.92);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
}

/* ===== Split / Rule sections ===== */
.entry-split .row {
  align-items: center;
}

.split-body {
  padding: 10px 0;
}

.split-body .section-kicker {
  margin-bottom: 12px;
}

.split-body h2 {
  font-size: var(--fs-display-2);
  line-height: 1.4;
  margin-bottom: 14px;
  color: var(--ink);
}

.split-body .lead-text {
  font-size: 1rem;
  color: var(--muted);
  margin-bottom: 26px;
}

.rule-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 14px;
}

.rule-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--primary);
  border-radius: var(--radius-card);
  padding: 16px 18px;
  box-shadow: var(--shadow-card);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}

.rule-list li:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.rule-list .rule-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  flex-shrink: 0;
  border-radius: 50%;
  background: var(--bg-alt);
  color: var(--primary);
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1rem;
}

.rule-list .rule-content {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.rule-list strong {
  font-size: 1rem;
  color: var(--ink);
}

.rule-list span {
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.75;
}

.split-body .btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
}

.visual-frame {
  position: relative;
  border-radius: 12px;
  overflow: hidden;
  aspect-ratio: 4 / 3;
  background: linear-gradient(135deg, var(--primary), var(--dark-bg-2));
  box-shadow: 0 18px 48px rgba(12, 27, 24, 0.16);
}

.visual-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.45s var(--ease);
}

.visual-frame:hover img {
  transform: scale(1.02);
}

.visual-frame .frame-tag {
  position: absolute;
  left: 16px;
  bottom: 16px;
  background: rgba(12, 27, 24, 0.70);
  color: rgba(255, 255, 255, 0.94);
  padding: 5px 12px;
  border-radius: 999px;
  font-size: 0.76rem;
  letter-spacing: 0.04em;
}

/* ===== Guide note ===== */
.guide-note {
  background: var(--dark-bg);
  color: rgba(255, 255, 255, 0.9);
  padding: 76px 0 72px;
}

.note-inner {
  max-width: 920px;
  margin: 0 auto;
  text-align: center;
}

.note-inner .note-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--accent);
  letter-spacing: 0.08em;
  font-size: 0.82rem;
  margin-bottom: 12px;
}

.note-inner h2 {
  color: #FFFFFF;
  font-size: var(--fs-display-2);
  line-height: 1.4;
  margin-bottom: 16px;
}

.note-inner p {
  color: rgba(236, 243, 238, 0.82);
  max-width: 780px;
  margin-left: auto;
  margin-right: auto;
  line-height: 1.95;
  margin-bottom: 14px;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--surface);
}

.faq-wrap {
  max-width: 860px;
  margin: 48px auto 8px;
}

.accordion-item {
  border: 1px solid var(--border);
  border-radius: var(--radius-card) !important;
  background: var(--bg);
  box-shadow: var(--shadow-card);
  margin-bottom: 16px;
  overflow: hidden;
}

.accordion-header {
  margin: 0;
}

.accordion-header .accordion-button {
  background: #FFFFFF;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.07rem;
  font-weight: 600;
  padding: 20px 22px;
  line-height: 1.5;
  box-shadow: none;
}

.accordion-header .accordion-button:not(.collapsed) {
  background: #FBFBF7;
  color: var(--primary);
  box-shadow: none;
}

.accordion-header .accordion-button:hover {
  background: #FAFBF8;
}

.accordion-header .accordion-button:focus {
  box-shadow: 0 0 0 3px rgba(198, 163, 74, 0.22);
}

.accordion-button::after {
  content: "+";
  width: 28px;
  height: 28px;
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background-image: none;
  border-radius: 50%;
  border: 1px solid rgba(10, 91, 78, 0.24);
  color: var(--primary);
  font-size: 1.4rem;
  font-weight: 400;
  transform: rotate(0deg);
  transition: transform 0.3s var(--ease), background 0.25s var(--ease), color 0.25s var(--ease);
}

.accordion-button:not(.collapsed)::after {
  transform: rotate(45deg);
  background: var(--primary);
  color: #FFFFFF;
  border-color: var(--primary);
}

.accordion-body {
  padding: 4px 22px 24px;
  color: var(--muted);
  line-height: 1.9;
  background: #FFFFFF;
}

/* ===== CTA ===== */
.cta-band {
  background: linear-gradient(110deg, var(--dark-bg) 0%, var(--dark-bg-2) 60%, var(--dark-bg) 100%);
  padding: 92px 0;
  color: #FFFFFF;
}

.cta-inner {
  max-width: 820px;
  margin: 0 auto;
  text-align: center;
  color: #FFFFFF;
}

.cta-inner h2 {
  color: #FFFFFF;
  font-size: var(--fs-display-2);
  margin-bottom: 14px;
}

.cta-inner p {
  color: rgba(240, 246, 242, 0.82);
  max-width: 640px;
  margin: 0 auto 30px;
  font-size: 1rem;
}

.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

/* ===== Footer ===== */
.footer {
  background: var(--dark-bg);
  color: rgba(240, 246, 242, 0.88);
  padding: 72px 0 0;
}

.footer a {
  color: rgba(240, 246, 242, 0.80);
  transition: color 0.22s var(--ease);
}

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

.footer-brand {
  display: inline-flex;
  align-items: baseline;
  gap: 0.2rem;
  font-family: var(--font-display);
  font-size: 1.45rem;
  font-weight: 700;
  color: #FFFFFF;
  text-decoration: none;
  letter-spacing: 0.02em;
  line-height: 1.3;
}

.footer-brand .brand-gap {
  color: var(--accent);
}

.footer-desc {
  color: rgba(230, 238, 233, 0.72);
  line-height: 1.9;
  margin: 16px 0 0;
  max-width: 360px;
}

.footer h5 {
  color: #FFFFFF;
  font-family: var(--font-display);
  font-size: 1.04rem;
  margin-bottom: 18px;
  letter-spacing: 0.02em;
}

.footer-links {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 11px;
}

.footer-links a {
  color: rgba(240, 246, 242, 0.76);
  font-size: 0.9rem;
}

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

.footer-service-tip {
  color: rgba(225, 235, 229, 0.48);
  font-size: 0.84rem;
  line-height: 1.9;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.10);
  margin-top: 54px;
  padding: 22px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  color: rgba(220, 230, 225, 0.55);
  font-size: 0.78rem;
}

/* ===== Media Query ===== */
@media (max-width: 1199.98px) {
  .mega-dropdown .dropdown-menu {
    width: 690px;
  }
}

@media (max-width: 991.98px) {
  .site-header {
    position: relative;
    height: auto;
    background: var(--dark-bg);
  }

  .site-header .navbar {
    padding: 12px 0;
  }

  .site-header .container {
    flex-wrap: wrap;
  }

  .brand-logo .brand-text,
  .brand-logo .brand-sub,
  .site-header .nav-link,
  .site-header .mega-toggle {
    color: #FFFFFF;
  }

  .site-header.is-scrolled .brand-text,
  .site-header.is-scrolled .brand-sub,
  .site-header.is-scrolled .nav-link,
  .site-header.is-scrolled .mega-toggle {
    color: #FFFFFF;
  }

  .navbar-collapse {
    width: 100%;
    background: var(--dark-bg-2);
    border-radius: 0 0 14px 14px;
    padding: 20px 10px 22px;
    margin-top: 12px;
  }

  .site-header .navbar-nav {
    row-gap: 4px;
  }

  .site-header .nav-link {
    padding: 10px 2px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }

  .header-tools {
    margin-left: 0;
    margin-top: 16px;
    padding-top: 14px;
    border-top: 1px solid rgba(255, 255, 255, 0.10);
    display: block;
    width: 100%;
  }

  .mega-dropdown {
    width: 100%;
  }

  .mega-dropdown .dropdown-menu {
    width: 100%;
    max-width: 100%;
    position: static !important;
    transform: none !important;
    visibility: visible !important;
    opacity: 1 !important;
    pointer-events: auto !important;
    background: transparent;
    box-shadow: none;
    border-radius: 0;
    padding: 12px 0 0 0;
    margin-top: 8px;
    color: #FFFFFF;
  }

  .mega-title {
    color: var(--accent);
    border-bottom-color: rgba(255, 255, 255, 0.14);
  }

  .mega-links a,
  .mega-entries a {
    color: #FFFFFF;
  }

  .mega-links span,
  .mega-entries time,
  .mega-thumb-card span {
    color: rgba(255, 255, 255, 0.55);
  }

  .mega-thumb-card {
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.10);
  }

  .mega-thumb-card strong {
    color: #FFFFFF;
  }

  .mega-thumb-card em {
    color: var(--accent);
  }

  .section {
    padding: 58px 0;
  }

  .visual-frame {
    max-width: 640px;
    margin: 0 auto;
  }
}

@media (max-width: 767.98px) {
  .section {
    padding: 42px 0;
  }

  .page-hero {
    min-height: 420px;
    padding: 84px 0 60px;
  }

  .page-hero-inner h1 {
    font-size: 2.15rem;
  }

  .page-hero-inner .mini-tags {
    margin-top: 26px;
  }

  .split-body .btn-row,
  .cta-actions {
    align-items: stretch;
  }

  .btn {
    width: auto;
  }

  .note-inner {
    text-align: left;
  }

  .note-inner h2 {
    font-size: 1.55rem;
  }

  .cta-band {
    padding: 64px 0;
  }

  .faq-wrap {
    margin-top: 28px;
  }

  .footer {
    padding-top: 52px;
  }

  .footer-bottom {
    margin-top: 30px;
    flex-direction: column;
    gap: 6px;
    text-align: center;
    line-height: 1.7;
  }
}

@media (max-width: 520px) {
  .brand-logo .brand-text {
    font-size: 1.4rem;
  }

  .brand-logo .brand-sub {
    font-size: 0.66rem;
    letter-spacing: 0.04em;
  }

  .btn {
    padding: 11px 18px;
    font-size: 0.9rem;
  }

  .hero-actions {
    flex-direction: column;
  }

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

  .rule-list li {
    flex-wrap: wrap;
  }

  .rule-list .rule-num {
    width: 34px;
    height: 34px;
    font-size: 0.88rem;
  }

  .accordion-header .accordion-button {
    font-size: 0.99rem;
    padding: 17px 16px;
  }

  .accordion-body {
    padding: 2px 16px 20px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* roulang page: category3 */
:root {
    --bg: #F4F5F1;
    --bg-alt: #EAF0EA;
    --surface: #FFFFFF;
    --dark-bg: #0C1B18;
    --dark-bg-2: #123330;
    --primary: #0A5B4E;
    --primary-hover: #0E6E5C;
    --accent: #C6A34A;
    --ink: #1C2521;
    --muted: #6D7771;
    --border: rgba(20, 45, 38, 0.12);
    --radius-card: 8px;
    --radius-img: 6px;
    --radius-btn: 4px;
    --radius-panel: 12px;
    --shadow-card: 0 4px 16px rgba(18, 45, 32, 0.06);
    --shadow-hover: 0 12px 32px rgba(18, 45, 32, 0.10);
    --shadow-mega: 0 14px 44px rgba(12, 28, 24, 0.14);
    --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --font-display: "Noto Serif SC", "Source Han Serif SC", "Songti SC", "SimSun", serif;
    --font-body: -apple-system, "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    background: var(--bg);
    color: var(--ink);
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.85;
    -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--primary); text-decoration: none; transition: color .25s var(--ease); }
a:hover { color: var(--primary-hover); }
ul, ol { padding-left: 22px; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-display); color: var(--ink); line-height: 1.35; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 2px; }

/* 公共导航 */
.site-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: rgba(12, 27, 24, 0.92);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    backdrop-filter: blur(8px);
}
.site-header .navbar { min-height: 68px; padding-top: 0; padding-bottom: 0; }
.brand-logo {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    line-height: 1.22;
    padding: 8px 0 4px;
    color: #ffffff;
}
.brand-logo:hover { color: #ffffff; }
.brand-text {
    font-family: var(--font-display);
    font-size: 1.55rem;
    font-weight: 600;
    letter-spacing: .02em;
}
.brand-gap { color: var(--accent); }
.brand-sub {
    font-size: .72rem;
    letter-spacing: .2em;
    color: rgba(220, 235, 225, 0.66);
    margin-top: 1px;
}
.navbar-nav .nav-item { margin: 0 2px; }
.navbar-nav .nav-link {
    display: inline-block;
    position: relative;
    color: rgba(235, 240, 235, 0.82);
    font-size: .95rem;
    padding: 10px 14px;
    margin: 8px 4px;
    border-radius: 6px;
    transition: color .25s var(--ease);
}
.navbar-nav .nav-link:after {
    content: "";
    position: absolute;
    left: 14px;
    right: 14px;
    bottom: 0;
    height: 2px;
    background: var(--accent);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform .3s var(--ease);
}
.navbar-nav .nav-link:hover,
.navbar-nav .nav-link.active { color: #ffffff; }
.navbar-nav .nav-link:hover:after,
.navbar-nav .nav-link.active:after { transform: scaleX(1); }
.header-tools { display: flex; align-items: center; }
.navbar-toggler {
    border: 1px solid rgba(255,255,255,.28);
    border-radius: 6px;
    padding: 6px 10px;
}
.navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(198,163,74,.35); }
.navbar-toggler-icon {
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 30 30' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath stroke='rgba(235,240,235,.92)' stroke-width='2.4' stroke-linecap='round' stroke-miterlimit='10' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}
.mega-dropdown { position: relative; }
.mega-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    border: 1px solid rgba(255,255,255,.22);
    border-radius: 4px;
    padding: 9px 15px;
    font-size: .9rem;
    color: rgba(245, 248, 245, .92);
    background: rgba(255,255,255,.04);
    transition: all .25s var(--ease);
}
.mega-toggle svg { width: 16px; height: 16px; opacity: .8; }
.mega-toggle:hover, .mega-toggle[aria-expanded="true"] {
    background: rgba(255,255,255,.1);
    color: #ffffff;
    border-color: rgba(198,163,74,.5);
}
.mega-dropdown .dropdown-menu.mega-panel {
    top: calc(100% + 14px);
    left: auto;
    right: 0;
    width: 620px;
    max-width: calc(100vw - 24px);
    border: 1px solid var(--border);
    border-radius: var(--radius-panel);
    background: #FBFCF9;
    padding: 22px 24px;
    margin: 0;
    box-shadow: var(--shadow-mega);
    color: var(--ink);
}
.mega-panel h5.mega-title {
    font-size: .98rem;
    color: var(--primary);
    border-bottom: 1px solid var(--border);
    padding-bottom: 9px;
    margin-bottom: 14px;
    letter-spacing: .03em;
}
.mega-links, .mega-entries { list-style: none; padding: 0; margin: 0; }
.mega-links li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 10px 4px;
    color: var(--ink);
    font-weight: 500;
    font-size: .92rem;
    border-bottom: 1px dashed rgba(20,45,38,.10);
    transition: all .22s var(--ease);
}
.mega-links li a:hover { color: var(--primary); padding-left: 8px; }
.mega-links li a span { color: var(--muted); font-size: .78rem; font-weight: 400; }
.mega-entries li { padding: 9px 0; border-bottom: 1px dashed rgba(20,45,38,.10); }
.mega-entries time {
    display: block;
    font-size: .74rem;
    color: var(--muted);
    letter-spacing: .05em;
    margin-bottom: 2px;
}
.mega-entries a { font-size: .9rem; color: var(--ink); line-height: 1.5; }
.mega-entries a:hover { color: var(--primary); }
.mega-card {
    border-radius: 10px;
    overflow: hidden;
    background: var(--dark-bg-2);
    color: rgba(255,255,255,.82);
    padding: 0 0 14px;
    height: 100%;
}
.mega-card img { width: 100%; height: 138px; object-fit: cover; }
.mega-card h6 { font-size: .95rem; margin: 12px 14px 5px; color: #ffffff; }
.mega-card p { font-size: .82rem; margin: 0 14px 10px; color: rgba(220,235,225,.7); line-height: 1.6; }
.mega-card-link { margin: 0 14px; color: var(--accent); font-size: .84rem; display: inline-flex; align-items: center; gap: 5px; }
.mega-card-link:hover { color: #e3c36f; }

/* Guide Hero */
.guide-hero {
    min-height: 330px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
    background:
        linear-gradient(83deg, rgba(10, 28, 24, .88) 0%, rgba(12, 51, 45, .72) 52%, rgba(12, 27, 24, .36) 100%),
        url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
    color: #ffffff;
}
.guide-hero .container { position: relative; z-index: 2; padding-top: 60px; padding-bottom: 60px; }
.guide-crumb {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 20px;
    font-size: .86rem;
    color: rgba(225, 236, 228, .68);
}
.guide-crumb a { color: rgba(225,236,228,.8); }
.guide-crumb a:hover { color: #ffffff; }
.guide-crumb i { text-decoration: none; font-style: normal; color: rgba(225,236,228,.4); }
.guide-crumb em { font-style: normal; color: #ffffff; }
.guide-hero h1 {
    font-family: var(--font-display);
    font-size: clamp(1.92rem, 3.6vw, 3rem);
    font-weight: 600;
    color: #ffffff;
    letter-spacing: .01em;
    line-height: 1.3;
    max-width: 860px;
    margin: 0 0 16px;
}
.guide-hero .lead-line {
    color: rgba(225, 236, 228, .82);
    font-size: 1.03rem;
    max-width: 720px;
    line-height: 1.8;
    margin: 0;
}

/* 长文正文 */
.page-main { padding-top: 76px; padding-bottom: 84px; background: var(--bg); }
.guide-wrap {
    max-width: 920px;
    margin: 0 auto;
}
.guide-intro {
    border: 1px solid var(--border);
    background: var(--surface);
    border-radius: var(--radius-card);
    padding: 26px 28px;
    margin-bottom: 12px;
    box-shadow: var(--shadow-card);
}
.guide-intro p { font-size: 1rem; color: var(--ink); margin: 0; }
.section-title-block {
    margin-top: 58px;
    margin-bottom: 22px;
    padding-left: 18px;
    border-left: 3px solid var(--accent);
}
.section-title-block h2 {
    font-size: clamp(1.38rem, 2vw, 1.72rem);
    font-weight: 600;
    margin: 0;
    letter-spacing: .01em;
}
.section-title-block .sec-sub {
    font-family: var(--font-body);
    color: var(--muted);
    font-size: .9rem;
    display: block;
    margin-top: 5px;
    font-weight: 400;
}
.guide-body p { margin-bottom: 20px; }
.guide-body ul li, .guide-body ol li { margin-bottom: 8px; }
.guide-body strong { font-weight: 600; }
.text-lead {
    font-size: 1.08rem;
    color: #41504a;
    border-bottom: 1px solid rgba(20,45,38,0.06);
    padding-bottom: 14px;
    margin-bottom: 28px;
}
.step-ol, .tip-list { padding-left: 24px; }
.step-ol li::marker { color: var(--primary); font-weight: 600; }
.tip-list li::marker { color: var(--accent); }

/* 安全提示框 */
.notice-box {
    background: #FAF3DC;
    border: 1px solid #E1C98F;
    border-left: 4px solid var(--accent);
    border-radius: var(--radius-card);
    padding: 24px 28px 26px;
    margin: 50px auto 12px;
}
.notice-box .noti-label {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-family: var(--font-display);
    font-weight: 600;
    color: #5f4b17;
    font-size: .96rem;
    letter-spacing: .04em;
    margin-bottom: 8px;
}
.notice-box p { margin: 0; font-size: .96rem; color: #4b3a12; line-height: 1.8; }
.guide-rule {
    max-width: 920px;
    margin: 40px auto;
    height: 1px;
    background: linear-gradient(90deg, transparent, rgba(20,45,38,.12), transparent);
}

/* FAQ 快查 */
.qa-faq { margin-top: 46px; }
.qa-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-card);
    padding: 22px 26px;
    margin-bottom: 16px;
    transition: box-shadow .28s var(--ease), transform .28s var(--ease);
}
.qa-item:hover { box-shadow: var(--shadow-hover); transform: translateY(-2px); }
.qa-item h4 {
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--primary);
    margin-bottom: 10px;
}
.qa-item p { margin: 0; color: #3A4942; line-height: 1.8; }

/* 尾部图文卡片 */
.visual-split { padding: 30px 0 84px; }
.split-panel {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 14px;
    overflow: hidden;
    box-shadow: var(--shadow-card);
}
.split-figure { padding: 0; }
.split-figure img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 300px;
}
.split-content { padding: 34px 32px 28px; display: flex; flex-direction: column; justify-content: center; }
.split-content .eyebrow {
    font-size: .82rem;
    color: var(--accent);
    letter-spacing: .14em;
    text-transform: uppercase;
    margin-bottom: 12px;
}
.split-content h3 {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--ink);
}
.split-content p { font-size: .96rem; line-height: 1.8; margin-bottom: 16px; }
.split-content ul { list-style: none; padding: 0; margin: 0 0 22px; }
.split-content ul li {
    position: relative;
    padding-left: 22px;
    margin-bottom: 10px;
    font-size: .94rem;
}
.split-content ul li:before {
    content: "";
    position: absolute;
    left: 0;
    top: .66em;
    width: 7px;
    height: 7px;
    border-radius: 2px;
    background: var(--accent);
}
.arrow-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-weight: 600;
    color: var(--primary);
    font-size: .95rem;
}
.arrow-link:hover { color: var(--primary-hover); gap: 10px; }

/* CTA */
.guide-cta {
    background:
        radial-gradient(620px 260px at 78% 0%, rgba(18, 51, 48, .92), transparent),
        var(--dark-bg);
    padding: 76px 0 84px;
    color: #ffffff;
}
.cta-inner { max-width: 860px; margin: 0 auto; text-align: center; }
.cta-badge {
    display: inline-block;
    border: 1px solid rgba(198,163,74,.4);
    color: var(--accent);
    font-size: .8rem;
    letter-spacing: .12em;
    border-radius: 40px;
    padding: 6px 16px;
    margin-bottom: 20px;
    background: rgba(198,163,74,.06);
}
.cta-inner h2 {
    font-size: clamp(1.7rem, 3.2vw, 2.4rem);
    font-weight: 600;
    color: #ffffff;
    margin: 0 0 14px;
}
.cta-inner p { font-size: 1rem; color: rgba(225, 236, 228, .72); margin: 0 auto 28px; max-width: 620px; line-height: 1.85; }
.btn-actions { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }
.btn-round {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border: 0;
    border-radius: 4px;
    padding: 13px 28px;
    font-size: .96rem;
    font-weight: 600;
    line-height: 1;
    transition: all .3s var(--ease);
}
.btn-gold {
    background: var(--accent);
    color: #1C2521;
}
.btn-gold:hover { background: #d8b65e; color: #1C2521; transform: translateY(-2px); box-shadow: 0 10px 24px rgba(198,163,74,.24); }
.btn-outline-light {
    background: transparent;
    color: rgba(255,255,255,.86);
    border: 1px solid rgba(255,255,255,.32);
}
.btn-outline-light:hover { background: rgba(255,255,255,.06); color: #ffffff; }
.btn-gold:focus-visible, .btn-outline-light:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

/* 公共页脚 */
.footer {
    background: var(--dark-bg);
    color: rgba(225, 235, 228, .66);
    padding: 70px 0 30px;
    font-size: .9rem;
}
.footer .footer-brand {
    font-family: var(--font-display);
    font-size: 1.3rem;
    font-weight: 600;
    color: #ffffff;
    display: inline-block;
    margin-bottom: 14px;
}
.footer .footer-brand .brand-gap { color: var(--accent); }
.footer-desc { color: rgba(220, 232, 224, .56); line-height: 1.85; margin-bottom: 0; font-size: .89rem; }
.footer h5 {
    color: #ffffff;
    font-size: 1rem;
    margin-bottom: 18px;
    letter-spacing: .03em;
    font-weight: 600;
}
.footer-links { list-style: none; padding: 0; margin: 0; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: rgba(220,232,224,.58); font-size: .88rem; transition: all .22s var(--ease); }
.footer-links a:hover { color: var(--accent); padding-left: 4px; }
.footer-bottom {
    border-top: 1px solid rgba(255,255,255,.08);
    margin-top: 52px;
    padding-top: 22px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: rgba(225,235,228,.42);
    font-size: .82rem;
    flex-wrap: wrap;
    gap: 10px;
}

/* 响应式 */
@media (max-width: 1199.98px) {
    .mega-dropdown .dropdown-menu.mega-panel { width: 560px; }
}
@media (max-width: 991.98px) {
    .site-header .navbar { min-height: 58px; }
    .navbar-collapse {
        background: var(--dark-bg);
        border-top: 1px solid rgba(255,255,255,.08);
        border-radius: 0 0 14px 14px;
        padding: 16px 10px 18px;
        margin-top: 6px;
        box-shadow: 0 16px 32px rgba(10,20,18,.2);
    }
    .navbar-nav { margin: 0 0 10px !important; }
    .navbar-nav .nav-link { width: fit-content; }
    .navbar-nav .nav-link:after { display: none; }
    .header-tools { display: none; }
    .guide-hero { min-height: 300px; }
    .guide-cta { padding: 58px 0 64px; }
    .footer { padding-top: 54px; }
    .footer-bottom { justify-content: center; text-align: center; }
}
@media (max-width: 767.98px) {
    body { font-size: 15px; }
    .page-main { padding-top: 48px; padding-bottom: 56px; }
    .guide-hero { min-height: auto; }
    .guide-hero .container { padding-top: 40px; padding-bottom: 40px; }
    .guide-crumb { margin-bottom: 16px; }
    .guide-intro { padding: 20px; }
    .section-title-block { margin-top: 38px; }
    .visual-split { padding-bottom: 48px; }
    .split-figure img { min-height: 220px; }
    .split-content { padding: 24px 22px; }
    .split-panel .row > div { padding: 0; }
    .btn-actions { flex-direction: column; align-items: center; }
    .btn-round { width: 100%; max-width: 340px; }
}
@media (max-width: 520px) {
    .brand-text { font-size: 1.35rem; }
    .brand-sub { letter-spacing: .14em; font-size: .68rem; }
    .guide-hero h1 { font-size: 1.7rem; }
    .guide-intro p { font-size: .95rem; }
    .qa-item { padding: 18px; }
    .notice-box { padding: 18px; }
}
@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    *, *::before, *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
    }
}