/* roulang page: index */
:root{
  --bg-deep:#080A0D;
  --bg-main:#0C0F13;
  --bg-panel:#14181F;
  --bg-raise:#1D222B;
  --bg-post:#F5F1E8;
  --gold:#C9A962;
  --gold-deep:#A9884B;
  --gold-soft:rgba(201,169,98,0.14);
  --teal:#4EC5B7;
  --text-1:#EDE8DE;
  --text-2:#9AA1AB;
  --text-3:#69717E;
  --line-soft:rgba(255,255,255,0.07);
  --line-gold:rgba(201,169,98,0.22);
  --shadow-card:0 20px 44px rgba(0,0,0,0.28);
  --radius:8px;
  --transition:.25s ease;
}
*,*::before,*::after{
  box-sizing:border-box;
}
html{
  scroll-behavior:smooth;
}
body{
  margin:0;
  background:var(--bg-main);
  color:var(--text-1);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{
  max-width:100%;
  display:block;
}
a{
  color:inherit;
  text-decoration:none;
  transition:color var(--transition);
}
button{
  font-family:inherit;
  border:none;
  cursor:pointer;
  background:none;
  color:inherit;
}
input,textarea,select{
  font-family:inherit;
}
.container{
  max-width:1280px;
  margin:0 auto;
  padding-left:clamp(20px,4vw,44px);
  padding-right:clamp(20px,4vw,44px);
}
.section{
  padding:130px 0;
}
.section-compact{
  padding:80px 0;
}
.section-head{
  margin-bottom:52px;
}
.section-eyebrow{
  display:flex;
  align-items:center;
  gap:12px;
  font-size:12px;
  letter-spacing:.18em;
  color:var(--gold);
  text-transform:uppercase;
  margin-bottom:18px;
  font-weight:600;
}
.section-eyebrow::before{
  content:'';
  width:45px;
  height:1px;
  background:var(--gold);
  display:inline-block;
}
.section-title{
  font-family:"Noto Serif SC","Source Han Serif SC","思源宋体","Songti SC",SimSun,serif;
  font-size:clamp(26px,3.2vw,40px);
  font-weight:700;
  line-height:1.3;
  margin:0 0 14px;
  letter-spacing:.01em;
}
.section-sub{
  font-size:15px;
  color:var(--text-2);
  max-width:560px;
  line-height:1.75;
  margin:0;
}
.section-num{
  font-family:"DIN Alternate","Arial Narrow",ui-monospace,monospace;
  font-size:15px;
  color:var(--gold);
  letter-spacing:.08em;
}
h1,h2,h3,h4{
  font-family:"Noto Serif SC","Source Han Serif SC","思源宋体","Songti SC",SimSun,serif;
  color:var(--text-1);
}
h1{
  font-size:clamp(40px,6vw,72px);
  font-weight:900;
  line-height:1.15;
  margin:0 0 22px;
}
h2{
  font-size:clamp(26px,3.2vw,40px);
  font-weight:700;
  line-height:1.3;
}
h3{
  font-size:20px;
  font-weight:700;
  line-height:1.4;
}
p{
  margin:0 0 1em;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:48px;
  padding:0 30px;
  border-radius:6px;
  font-size:15px;
  font-weight:600;
  letter-spacing:.02em;
  transition:all var(--transition);
  border:1px solid transparent;
  cursor:pointer;
  line-height:1;
}
.btn-primary{
  background:var(--gold);
  color:#111;
}
.btn-primary:hover{
  transform:translateY(-2px);
  filter:brightness(1.08);
  box-shadow:0 8px 24px rgba(201,169,98,.28);
  color:#111;
}
.btn-outline{
  background:transparent;
  border-color:var(--line-gold);
  color:var(--gold);
}
.btn-outline:hover{
  background:var(--gold-soft);
  color:var(--gold);
  transform:translateY(-2px);
}
.btn-sm{
  height:32px;
  padding:0 18px;
  font-size:13px;
}
.btn-lg{
  height:52px;
  padding:0 38px;
  font-size:16px;
}

/* ======== 导航 ======== */
.site-header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:1000;
  height:72px;
  background:rgba(12,15,19,0.42);
  backdrop-filter:blur(18px) saturate(1.2);
  -webkit-backdrop-filter:blur(18px) saturate(1.2);
  border-bottom:1px solid rgba(255,255,255,0.07);
  transition:background .3s ease,border-color .3s ease,box-shadow .3s ease;
}
.site-header.scrolled{
  background:rgba(8,10,13,0.96);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  box-shadow:0 8px 24px rgba(0,0,0,0.35);
  border-bottom-color:rgba(201,169,98,0.18);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
}
.logo{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.logo-mark{
  width:24px;
  height:24px;
  background:var(--gold);
  border-radius:4px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-family:"Noto Serif SC",serif;
  font-size:14px;
  font-weight:900;
  color:#111;
}
.logo-text{
  display:flex;
  flex-direction:column;
  line-height:1.2;
}
.logo-main{
  font-family:"Noto Serif SC","Source Han Serif SC",serif;
  font-size:17px;
  font-weight:700;
  color:var(--text-1);
  letter-spacing:.02em;
}
.logo-sub{
  font-size:9px;
  color:var(--gold);
  letter-spacing:.2em;
  text-transform:uppercase;
  margin-top:2px;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:38px;
  margin:0 20px;
}
.nav-link{
  position:relative;
  font-size:14px;
  font-weight:500;
  color:var(--text-2);
  padding:6px 0;
  transition:color var(--transition);
}
.nav-link:hover{
  color:var(--text-1);
}
.nav-link.active{
  color:var(--text-1);
}
.nav-link.active::after{
  content:'';
  position:absolute;
  left:0;
  bottom:0;
  width:24px;
  height:2px;
  background:var(--gold);
}
.header-actions{
  display:flex;
  align-items:center;
  gap:16px;
}
.search-btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--text-2);
  padding:6px 10px;
  border-radius:6px;
  transition:color var(--transition),background var(--transition);
}
.search-btn:hover{
  color:var(--text-1);
  background:var(--gold-soft);
}
.search-icon{
  display:inline-block;
  width:13px;
  height:13px;
  border:2px solid currentColor;
  border-radius:50%;
  position:relative;
}
.search-icon::after{
  content:'';
  position:absolute;
  bottom:-3px;
  right:-5px;
  width:6px;
  height:2px;
  background:currentColor;
  transform:rotate(45deg);
  border-radius:1px;
}
.hamburger{
  display:none;
  flex-direction:column;
  gap:4px;
  padding:8px;
}
.hamburger span{
  display:block;
  width:20px;
  height:2px;
  background:var(--text-1);
  border-radius:2px;
  transition:transform .3s ease,opacity .3s ease;
}
.hamburger.open span:nth-child(1){
  transform:translateY(6px) rotate(45deg);
}
.hamburger.open span:nth-child(2){
  opacity:0;
}
.hamburger.open span:nth-child(3){
  transform:translateY(-6px) rotate(-45deg);
}
.mobile-drawer{
  position:fixed;
  top:0;
  right:-280px;
  width:280px;
  height:100vh;
  background:rgba(8,10,13,0.94);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  z-index:1100;
  transition:right .3s ease;
  padding:90px 32px 40px;
  display:flex;
  flex-direction:column;
  border-left:1px solid var(--line-soft);
}
.mobile-drawer.open{
  right:0;
}
.mobile-drawer .nav-link{
  display:block;
  font-size:18px;
  color:var(--text-1);
  padding:14px 0;
  margin-bottom:4px;
  border-bottom:1px solid var(--line-soft);
}
.mobile-drawer .nav-link.active{
  color:var(--gold);
}
.mobile-drawer .btn{
  margin-top:auto;
  width:100%;
}
.drawer-overlay{
  position:fixed;
  top:0;
  left:0;
  right:0;
  bottom:0;
  background:rgba(0,0,0,0.5);
  z-index:1050;
  opacity:0;
  visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;
}
.drawer-overlay.show{
  opacity:1;
  visibility:visible;
}
body.no-scroll{
  overflow:hidden;
}

/* ======== Hero ======== */
.hero{
  position:relative;
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;
  text-align:center;
  background:linear-gradient(rgba(8,10,13,0.72),rgba(8,10,13,0.86)),url('/assets/images/backpic/back-1.png') center center/cover no-repeat;
  padding:120px 20px 80px;
}
.hero-content{
  max-width:860px;
  margin:0 auto;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 18px;
  border:1px solid var(--line-gold);
  border-radius:30px;
  font-size:13px;
  color:var(--gold);
  background:var(--gold-soft);
  letter-spacing:.08em;
  margin-bottom:28px;
}
.hero-title{
  font-size:clamp(40px,6vw,72px);
  font-weight:900;
  line-height:1.15;
  color:var(--text-1);
  margin:0 0 24px;
  font-family:"Noto Serif SC","Source Han Serif SC","思源宋体","Songti SC",SimSun,serif;
  letter-spacing:.02em;
}
.hero-desc{
  font-size:clamp(16px,2vw,20px);
  color:var(--text-2);
  line-height:1.8;
  margin-bottom:40px;
  max-width:620px;
  margin-left:auto;
  margin-right:auto;
}
.hero-actions{
  display:flex;
  gap:16px;
  justify-content:center;
  flex-wrap:wrap;
}
.hero-scroll{
  position:absolute;
  bottom:28px;
  left:50%;
  transform:translateX(-50%);
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  color:var(--text-3);
  font-size:12px;
  letter-spacing:.2em;
}
.hero-scroll-line{
  width:1px;
  height:36px;
  background:linear-gradient(to bottom,var(--gold),transparent);
}

/* ======== 痛点 ======== */
.pain-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.pain-card{
  background:transparent;
  border:1px solid var(--line-soft);
  border-radius:10px;
  padding:32px 30px;
  transition:border-color var(--transition),box-shadow var(--transition),transform var(--transition);
}
.pain-card:hover{
  border-color:var(--line-gold);
  box-shadow:var(--shadow-card);
  transform:translateY(-4px);
}
.pain-card .pain-num{
  font-family:"DIN Alternate","Arial Narrow",ui-monospace,monospace;
  font-size:13px;
  color:var(--gold);
  letter-spacing:.06em;
  display:block;
  margin-bottom:14px;
}
.pain-card h3{
  font-size:17px;
  margin:0 0 10px;
  font-family:"PingFang SC","Microsoft YaHei",sans-serif;
  font-weight:600;
}
.pain-card p{
  font-size:14px;
  color:var(--text-2);
  margin:0;
  line-height:1.65;
}

/* ======== 解决方案 ======== */
.solution-wrap{
  background:var(--bg-panel);
  border-radius:14px;
  overflow:hidden;
  box-shadow:var(--shadow-card);
}
.solution-inner{
  display:flex;
  align-items:stretch;
}
.solution-text{
  width:55%;
  padding:60px 56px;
}
.solution-img{
  width:45%;
  position:relative;
  border-left:1px solid var(--line-gold);
  min-height:420px;
}
.solution-img img{
  width:100%;
  height:100%;
  object-fit:cover;
  position:absolute;
  top:0;
  left:0;
}
.solution-text p{
  color:var(--text-2);
  font-size:15px;
  margin-bottom:28px;
}
.feature-list{
  list-style:none;
  padding:0;
  margin:0 0 32px;
}
.feature-list li{
  position:relative;
  padding-left:24px;
  font-size:15px;
  color:var(--text-1);
  margin-bottom:16px;
  line-height:1.6;
}
.feature-list li::before{
  content:'';
  position:absolute;
  left:0;
  top:10px;
  width:8px;
  height:8px;
  background:var(--gold);
}

/* ======== 数据 ======== */
.stats-panel{
  position:relative;
  background:var(--bg-panel);
  border-radius:14px;
  padding:56px 40px;
  box-shadow:var(--shadow-card);
}
.stats-grid{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:20px;
  flex-wrap:wrap;
}
.stat-item{
  flex:1;
  min-width:160px;
  text-align:center;
  padding:16px 10px;
  position:relative;
}
.stat-item + .stat-item::before{
  content:'';
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:1px;
  height:52px;
  background:var(--line-gold);
}
.stat-num{
  font-family:"DIN Alternate","Arial Narrow",ui-monospace,monospace;
  font-size:clamp(26px,3.5vw,40px);
  font-weight:700;
  color:var(--gold);
  line-height:1.2;
  display:block;
}
.stat-label{
  font-size:13px;
  color:var(--text-2);
  margin-top:8px;
  display:block;
  letter-spacing:.04em;
}
.stats-panel::before,.stats-panel::after{
  content:'';
  position:absolute;
  top:50%;
  width:12px;
  height:1px;
  background:var(--gold);
}
.stats-panel::before{
  left:-12px;
}
.stats-panel::after{
  right:-12px;
}

/* ======== 客户证言 ======== */
.testimonial-list{
  max-width:900px;
  margin:0 auto;
  display:flex;
  flex-direction:column;
  gap:60px;
}
.testimonial-item{
  position:relative;
  display:flex;
  align-items:flex-start;
  gap:36px;
}
.testimonial-item:nth-child(even){
  flex-direction:row-reverse;
}
.testimonial-item::before{
  content:'“';
  font-family:"Noto Serif SC",serif;
  font-size:88px;
  color:var(--gold);
  opacity:.2;
  line-height:1;
  position:absolute;
  top:-12px;
  left:-8px;
  z-index:0;
}
.testimonial-item:nth-child(even)::before{
  left:auto;
  right:-8px;
}
.testimonial-avatar{
  width:64px;
  height:64px;
  border-radius:50%;
  overflow:hidden;
  flex-shrink:0;
  filter:grayscale(1);
  transition:filter var(--transition);
  border:2px solid var(--line-gold);
  z-index:1;
}
.testimonial-avatar:hover{
  filter:grayscale(0);
}
.testimonial-avatar img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.testimonial-content{
  flex:1;
  z-index:1;
}
.testimonial-text{
  font-family:"Noto Serif SC","Source Han Serif SC",serif;
  font-size:20px;
  line-height:1.6;
  color:var(--text-1);
  margin:0 0 18px;
  padding:0;
}
.testimonial-author{
  font-size:14px;
  color:var(--text-2);
}
.testimonial-author strong{
  color:var(--gold);
  font-weight:600;
  margin-right:8px;
}

/* ======== CTA ======== */
.cta-section{
  position:relative;
  background:linear-gradient(rgba(8,10,13,0.86),rgba(8,10,13,0.86)),url('/assets/images/backpic/back-2.webp') center center/cover no-repeat;
  padding:100px 0;
  text-align:center;
}
.cta-section .container{
  position:relative;
  z-index:1;
}
.cta-eyebrow{
  font-size:12px;
  letter-spacing:.18em;
  color:var(--gold);
  margin-bottom:18px;
  text-transform:uppercase;
}
.cta-title{
  font-size:clamp(26px,3.2vw,40px);
  margin-bottom:14px;
}
.cta-desc{
  color:var(--text-2);
  max-width:480px;
  margin:0 auto 36px;
  font-size:16px;
}
.cta-actions{
  display:flex;
  gap:16px;
  justify-content:center;
  flex-wrap:wrap;
}

/* ======== 资讯动态 ======== */
.news-section{
  background:var(--bg-main);
  padding:130px 0;
}
.news-list{
  max-width:900px;
  margin:0 auto;
}
.news-item{
  display:flex;
  align-items:center;
  gap:28px;
  padding:28px 0;
  border-bottom:1px solid var(--line-soft);
  transition:background var(--transition);
}
.news-item:first-child{
  border-top:1px solid var(--line-soft);
}
.news-item:hover{
  background:rgba(255,255,255,0.015);
}
.news-thumb{
  width:96px;
  height:96px;
  border-radius:8px;
  overflow:hidden;
  flex-shrink:0;
  background:var(--bg-raise);
}
.news-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.news-body{
  flex:1;
  min-width:0;
}
.news-meta{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:8px;
}
.news-cat{
  padding:2px 10px;
  border-radius:4px;
  background:var(--gold-soft);
  color:var(--gold);
  font-size:12px;
  font-weight:500;
  letter-spacing:.02em;
}
.news-time{
  font-family:"DIN Alternate","Arial Narrow",ui-monospace,monospace;
  font-size:13px;
  color:var(--text-3);
}
.news-body h3{
  font-size:17px;
  margin:0 0 6px;
  transition:color var(--transition);
}
.news-item:hover .news-body h3{
  color:var(--gold);
}
.news-summary{
  font-size:14px;
  color:var(--text-2);
  margin:0;
  line-height:1.6;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-more{
  flex-shrink:0;
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--text-2);
  transition:color var(--transition);
}
.news-item:hover .news-more{
  color:var(--gold);
}
.news-more .arrow{
  font-size:16px;
  line-height:1;
}
.news-empty{
  border:1px dashed rgba(255,255,255,0.2);
  border-radius:12px;
  background:rgba(255,255,255,0.02);
  padding:60px 30px;
  text-align:center;
  color:var(--text-2);
  font-size:15px;
}

/* ======== 页脚 ======== */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--gold);
  padding:70px 0 30px;
}
.footer-grid{
  display:flex;
  gap:40px;
  flex-wrap:wrap;
  margin-bottom:40px;
}
.footer-brand{
  flex:2;
  min-width:240px;
}
.footer-brand .logo{
  margin-bottom:16px;
}
.footer-desc{
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
  margin-bottom:16px;
  max-width:320px;
}
.footer-col{
  flex:1;
  min-width:140px;
}
.footer-col h4{
  font-size:14px;
  font-weight:600;
  color:var(--text-1);
  letter-spacing:.04em;
  margin-bottom:18px;
  font-family:"PingFang SC","Microsoft YaHei",sans-serif;
}
.footer-col ul{
  list-style:none;
  padding:0;
  margin:0;
}
.footer-col ul li{
  margin-bottom:10px;
}
.footer-col ul a{
  font-size:14px;
  color:var(--text-2);
  transition:color var(--transition);
}
.footer-col ul a:hover{
  color:var(--gold);
}
.footer-subscribe{
  flex:1.4;
  min-width:240px;
}
.footer-subscribe p{
  font-size:14px;
  color:var(--text-2);
  margin-bottom:16px;
}
.subscribe-form{
  display:flex;
  gap:10px;
}
.subscribe-form input{
  flex:1;
  height:40px;
  background:rgba(255,255,255,0.04);
  border:1px solid var(--line-soft);
  border-radius:6px;
  padding:0 14px;
  color:var(--text-1);
  font-size:14px;
  outline:none;
  transition:border-color var(--transition),box-shadow var(--transition);
}
.subscribe-form input:focus{
  border-color:var(--gold);
  box-shadow:0 0 0 3px var(--gold-soft);
}
.subscribe-form input::placeholder{
  color:var(--text-3);
}
.footer-bottom{
  border-top:1px solid var(--line-soft);
  padding-top:22px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  flex-wrap:wrap;
  gap:12px;
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom .copyright{
  letter-spacing:.02em;
}
.footer-bottom .icp{
  letter-spacing:.03em;
}

/* ======== 动画 ======== */
@keyframes fadeInUp{
  from{
    opacity:0;
    transform:translateY(18px);
  }
  to{
    opacity:1;
    transform:translateY(0);
  }
}
.fade-in{
  opacity:0;
  animation:fadeInUp .6s ease forwards;
}
.fade-in.delay-1{
  animation-delay:.1s;
}
.fade-in.delay-2{
  animation-delay:.2s;
}
.fade-in.delay-3{
  animation-delay:.3s;
}
.fade-in.delay-4{
  animation-delay:.4s;
}

/* ======== 响应式 ======== */
@media(max-width:64em){
  .section{
    padding:84px 0;
  }
  .news-section{
    padding:84px 0;
  }
  .solution-text{
    padding:44px 36px;
  }
  .solution-img{
    min-height:360px;
  }
  .stats-panel{
    padding:44px 24px;
  }
}

@media(max-width:40em){
  .main-nav{
    display:none;
  }
  .search-btn{
    display:none;
  }
  .hamburger{
    display:flex;
  }
  .header-actions .btn-primary{
    display:none;
  }
  .section{
    padding:60px 0;
  }
  .news-section{
    padding:60px 0;
  }
  .pain-grid{
    grid-template-columns:1fr;
  }
  .solution-inner{
    flex-direction:column;
  }
  .solution-text{
    width:100%;
    padding:36px 24px;
  }
  .solution-img{
    width:100%;
    min-height:240px;
    border-left:none;
    border-top:1px solid var(--line-gold);
  }
  .solution-img img{
    position:relative;
    height:240px;
  }
  .stats-grid{
    flex-direction:column;
    gap:28px;
  }
  .stat-item + .stat-item::before{
    display:none;
  }
  .testimonial-item,.testimonial-item:nth-child(even){
    flex-direction:column;
    gap:20px;
    padding:0 10px;
  }
  .testimonial-avatar{
    width:56px;
    height:56px;
  }
  .testimonial-text{
    font-size:18px;
  }
  .news-item{
    flex-direction:row;
    gap:16px;
    padding:20px 0;
  }
  .news-thumb{
    width:72px;
    height:72px;
  }
  .news-more{
    display:none;
  }
  .footer-grid{
    flex-direction:column;
    gap:36px;
  }
  .footer-brand,.footer-col,.footer-subscribe{
    min-width:100%;
  }
  .subscribe-form{
    flex-direction:column;
  }
  .footer-bottom{
    flex-direction:column;
    text-align:center;
  }
  .cta-section{
    padding:70px 0;
  }
}

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

/* roulang page: category1 */
:root {
  --bg-deep: #080A0D;
  --bg-main: #0C0F13;
  --bg-panel: #14181F;
  --bg-raise: #1D222B;
  --bg-post: #F5F1E8;
  --gold: #C9A962;
  --gold-deep: #A9884B;
  --gold-soft: rgba(201,169,98,0.14);
  --teal: #4EC5B7;
  --text-1: #EDE8DE;
  --text-2: #9AA1AB;
  --text-3: #69717E;
  --line-soft: rgba(255,255,255,0.07);
  --line-gold: rgba(201,169,98,0.22);
  --shadow-card: 0 20px 44px rgba(0,0,0,0.28);
  --font-serif: "Noto Serif SC","Source Han Serif SC","思源宋体","Songti SC",SimSun,serif;
  --font-sans: "PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --font-num: "DIN Alternate","Arial Narrow",ui-monospace,monospace;
  --radius: 10px;
  --ease: .28s ease;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  padding: 0;
  background: var(--bg-main);
  color: var(--text-1);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .25s ease; }
ul, ol { list-style: none; margin: 0; padding: 0; }
button, input, textarea { font-family: inherit; font-size: inherit; border: none; background: none; color: inherit; }
button { cursor: pointer; }
h1, h2, h3, h4, h5, h6 { font-family: var(--font-serif); margin: 0; font-weight: 700; }
p { margin: 0; }
.container { max-width: 1280px; margin: 0 auto; padding-left: clamp(20px, 4vw, 44px); padding-right: clamp(20px, 4vw, 44px); }
body.no-scroll { overflow: hidden; }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 600;
  border-radius: 6px;
  line-height: 1;
  white-space: nowrap;
  transition: transform var(--ease), background .3s ease, border-color .3s ease, box-shadow .3s ease, color .3s ease, filter .3s ease;
}
.btn-primary {
  background: var(--gold);
  color: #0C0F13;
  padding: 0 22px;
  height: 40px;
  font-size: 15px;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(201,169,98,0.28);
  filter: brightness(1.08);
}
.btn-sm { height: 32px; padding: 0 16px; font-size: 13px; }
.btn-lg { height: 48px; padding: 0 34px; font-size: 16px; border-radius: 8px; }
.btn-outline {
  border: 1px solid var(--line-gold);
  color: var(--gold);
  background: transparent;
  padding: 0 22px;
  height: 40px;
  font-size: 15px;
}
.btn-outline:hover { background: var(--gold-soft); border-color: var(--gold); transform: translateY(-2px); }
.btn-outline.btn-lg { border-width: 1px; }

/* 头部导航 */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 72px;
  z-index: 1000;
  background: rgba(12,15,19,0.42);
  backdrop-filter: blur(18px) saturate(1.2);
  -webkit-backdrop-filter: blur(18px) saturate(1.2);
  border-bottom: 1px solid rgba(255,255,255,0.07);
  transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}
.site-header.scrolled {
  background: rgba(8,10,13,0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.35);
  border-bottom-color: rgba(201,169,98,0.18);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 28px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.logo-mark {
  width: 24px;
  height: 24px;
  background: var(--gold);
  border-radius: 5px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #0C0F13;
  font-family: var(--font-serif);
  font-weight: 900;
  font-size: 14px;
  line-height: 1;
}
.logo-text { display: flex; flex-direction: column; line-height: 1; }
.logo-main { font-family: var(--font-serif); font-size: 18px; font-weight: 700; color: var(--text-1); letter-spacing: .02em; transition: color .25s ease; }
.logo-sub { font-size: 9px; letter-spacing: .2em; color: var(--gold); text-transform: uppercase; margin-top: 3px; }
.logo:hover .logo-main { color: var(--gold); }
.main-nav { display: flex; align-items: center; gap: 32px; }
.nav-link {
  position: relative;
  font-size: 15px;
  color: var(--text-2);
  padding: 8px 0;
  font-weight: 500;
  line-height: 1;
}
.nav-link:hover { color: var(--text-1); }
.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 20px;
  height: 2px;
  background: var(--gold);
  opacity: 0;
  transition: width .3s ease, opacity .3s ease;
}
.nav-link:hover::after { width: 100%; opacity: 1; }
.nav-link.active { color: var(--text-1); }
.nav-link.active::after { width: 24px; opacity: 1; }
.header-actions { display: flex; align-items: center; gap: 14px; }
.search-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-2);
  font-size: 14px;
  padding: 8px 12px;
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  transition: border-color .25s ease, color .25s ease;
}
.search-btn:hover { border-color: var(--line-gold); color: var(--text-1); }
.search-btn-dot { width: 6px; height: 6px; background: var(--gold); border-radius: 50%; }
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  padding: 8px;
  border: 1px solid var(--line-soft);
  border-radius: 6px;
}
.nav-toggle span { display: block; height: 2px; width: 18px; background: var(--text-1); border-radius: 2px; transition: transform .3s ease, opacity .3s ease; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }
.mobile-drawer {
  position: fixed;
  top: 0;
  right: 0;
  width: min(320px, 84vw);
  height: 100vh;
  z-index: 999;
  background: rgba(8,10,13,0.96);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-left: 1px solid var(--line-gold);
  transform: translateX(102%);
  transition: transform .3s ease;
  padding: 96px 28px 28px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  overflow-y: auto;
}
.mobile-drawer.open { transform: translateX(0); }
.drawer-link {
  font-family: var(--font-serif);
  font-size: 20px;
  color: var(--text-1);
  padding: 12px 0;
  border-bottom: 1px solid var(--line-soft);
  transition: color .25s ease, border-color .25s ease;
}
.drawer-link:hover { color: var(--gold); border-color: var(--line-gold); }
.drawer-link.active { color: var(--gold); }
.drawer-cta { margin-top: 32px; }

/* 分类页 Hero */
.cat-hero {
  position: relative;
  padding: 190px 0 110px;
  background: url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  border-bottom: 1px solid var(--line-gold);
}
.cat-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(8,10,13,0.76) 0%, rgba(8,10,13,0.9) 100%);
}
.cat-hero .container { position: relative; z-index: 1; }
.breadcrumb {
  font-size: 13px;
  color: var(--text-3);
  margin-bottom: 28px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.breadcrumb a { color: var(--text-2); }
.breadcrumb a:hover { color: var(--gold); }
.breadcrumb .sep { color: var(--text-3); margin: 0 2px; }
.eyebrow {
  font-size: 12px;
  letter-spacing: .18em;
  color: var(--gold);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 14px;
  display: block;
}
.cat-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(38px, 5.5vw, 66px);
  line-height: 1.16;
  font-weight: 900;
  color: var(--text-1);
  letter-spacing: .01em;
  max-width: 720px;
}
.cat-hero .lead {
  font-size: 17px;
  color: var(--text-2);
  max-width: 640px;
  margin-top: 20px;
  line-height: 1.8;
}

/* 成果指标带 */
.metrics-strip {
  position: relative;
  background: var(--bg-panel);
  border-bottom: 1px solid rgba(201,169,98,0.18);
}
.metrics-strip::before,
.metrics-strip::after {
  content: '';
  position: absolute;
  top: 50%;
  width: 12px;
  height: 1px;
  background: var(--gold);
  z-index: 2;
}
.metrics-strip::before { left: 0; }
.metrics-strip::after { right: 0; }
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
}
.metric-item {
  padding: 46px 24px;
  text-align: center;
  border-right: 1px solid rgba(201,169,98,0.16);
}
.metric-item:last-child { border-right: none; }
.metric-num {
  font-family: var(--font-num);
  color: var(--gold);
  font-size: clamp(28px, 3.4vw, 42px);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .01em;
}
.metric-label { color: var(--text-2); font-size: 14px; margin-top: 10px; }

/* 特色交错行 */
.features-rows { padding: 128px 0 64px; background: var(--bg-main); }
.section-head { margin-bottom: 72px; }
.section-head .eyebrow { margin-bottom: 16px; }
.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(26px, 3.2vw, 40px);
  color: var(--text-1);
  font-weight: 700;
  line-height: 1.3;
  max-width: 720px;
}
.section-head .lead { color: var(--text-2); margin-top: 16px; max-width: 660px; font-size: 16px; }
.feature-row { margin-bottom: 112px; }
.feature-row:last-child { margin-bottom: 80px; }
.feature-row .grid-x { align-items: center; gap: 0; }
.feature-row .cell { padding-left: 0; padding-right: 0; }
.feature-text { padding-right: clamp(20px, 4vw, 56px); }
.feature-row.reversed .feature-text { padding-right: 0; padding-left: clamp(20px, 4vw, 56px); }
.feature-num {
  font-family: var(--font-num);
  color: var(--gold);
  font-size: 14px;
  letter-spacing: .08em;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.feature-num::before { content: ''; width: 45px; height: 1px; background: var(--gold); flex-shrink: 0; }
.feature-text h3 {
  font-family: var(--font-serif);
  font-size: clamp(20px, 2vw, 28px);
  color: var(--text-1);
  margin-bottom: 18px;
  line-height: 1.4;
}
.feature-text > p { color: var(--text-2); font-size: 15.5px; line-height: 1.85; margin-bottom: 20px; }
.feature-points li {
  position: relative;
  padding-left: 22px;
  color: var(--text-1);
  font-size: 15px;
  margin-bottom: 10px;
  line-height: 1.7;
}
.feature-points li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px;
  height: 8px;
  background: var(--gold);
}
.feature-media-frame {
  position: relative;
  border: 1px solid rgba(201,169,98,0.18);
  background: var(--bg-panel);
  box-shadow: var(--shadow-card);
  line-height: 0;
  overflow: hidden;
}
.feature-media-frame img {
  width: 100%;
  height: auto;
  min-height: 260px;
  object-fit: cover;
  transition: transform .55s ease;
}
.feature-media:hover .feature-media-frame img { transform: scale(1.02); }

/* FAQ */
.faq-section { background: var(--bg-deep); padding: 128px 0; border-top: 1px solid var(--line-soft); }
.faq-grid { display: grid; grid-template-columns: repeat(12, 1fr); gap: clamp(32px, 4vw, 56px); }
.faq-intro { grid-column: span 5; }
.faq-intro h2 { font-size: clamp(24px, 2.6vw, 34px); color: var(--text-1); line-height: 1.35; margin-bottom: 16px; }
.faq-intro p { color: var(--text-2); font-size: 15px; line-height: 1.8; max-width: 420px; }
.faq-list { grid-column: span 7; }
.faq-item {
  background: var(--bg-panel);
  border: 1px solid var(--line-soft);
  border-radius: var(--radius);
  margin-bottom: 14px;
  overflow: hidden;
  transition: border-color .3s ease, box-shadow .3s ease;
}
.faq-item:hover, .faq-item.open { border-color: var(--line-gold); box-shadow: 0 8px 30px rgba(0,0,0,0.2); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 16px;
  font-family: var(--font-serif);
  color: var(--text-1);
  font-weight: 600;
  width: 100%;
  text-align: left;
  transition: color .25s ease;
}
.faq-question:hover { color: var(--gold); }
.faq-icon { flex-shrink: 0; width: 20px; height: 20px; position: relative; }
.faq-icon::before, .faq-icon::after {
  content: '';
  position: absolute;
  background: var(--gold);
  transition: transform .3s ease;
  border-radius: 2px;
}
.faq-icon::before { top: 9px; left: 0; width: 20px; height: 2px; }
.faq-icon::after { top: 0; left: 9px; width: 2px; height: 20px; }
.faq-item.open .faq-icon::after { transform: scaleY(0); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
  padding: 0 24px;
  color: var(--text-2);
  font-size: 15px;
  line-height: 1.75;
}
.faq-item.open .faq-answer { max-height: 260px; padding: 0 24px 22px; }

/* CTA */
.cta-section {
  position: relative;
  background: url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding: 130px 0;
  text-align: center;
}
.cta-section::before { content: ''; position: absolute; inset: 0; background: rgba(8,10,13,0.86); }
.cta-inner { position: relative; z-index: 1; max-width: 720px; margin: 0 auto; }
.cta-inner .eyebrow { margin-bottom: 16px; }
.cta-section h2 {
  font-size: clamp(26px, 3.2vw, 40px);
  color: var(--text-1);
  line-height: 1.35;
  margin-bottom: 16px;
}
.cta-section p { color: var(--text-2); font-size: 16px; margin-bottom: 40px; max-width: 540px; margin-left: auto; margin-right: auto; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* 页脚 */
.site-footer { background: var(--bg-deep); border-top: 1px solid var(--gold); padding: 80px 0 0; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.5fr;
  gap: clamp(32px, 4vw, 64px);
  padding-bottom: 56px;
}
.footer-brand .logo { margin-bottom: 18px; }
.footer-desc { color: var(--text-3); font-size: 14px; line-height: 1.8; max-width: 340px; margin-top: 16px; }
.footer-col h4 { font-family: var(--font-sans); font-size: 15px; font-weight: 600; color: var(--text-1); margin-bottom: 18px; letter-spacing: .02em; }
.footer-col ul { list-style: none; margin: 0; padding: 0; }
.footer-col li { margin-bottom: 12px; }
.footer-col a { color: var(--text-3); font-size: 14px; transition: color .25s ease; }
.footer-col a:hover { color: var(--gold); }
.footer-subscribe h4 { font-family: var(--font-sans); font-size: 15px; font-weight: 600; color: var(--text-1); margin-bottom: 14px; }
.footer-subscribe p { color: var(--text-3); font-size: 14px; line-height: 1.7; margin-bottom: 16px; }
.subscribe-form { display: flex; gap: 10px; }
.subscribe-form input {
  flex: 1;
  height: 40px;
  background: rgba(255,255,255,0.04);
  border: 1px solid var(--line-soft);
  border-radius: 6px;
  padding: 0 14px;
  color: var(--text-1);
  font-size: 14px;
  min-width: 0;
  transition: border-color .25s ease, box-shadow .25s ease;
}
.subscribe-form input:focus { border-color: var(--gold); box-shadow: 0 0 0 3px var(--gold-soft); outline: none; }
.subscribe-form input::placeholder { color: var(--text-3); }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  border-top: 1px solid var(--line-soft);
  padding: 26px 0;
  color: var(--text-3);
  font-size: 13px;
}
.footer-bottom .icp { font-size: 12px; }

/* 入场动画 */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.visible { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
  * { transition-duration: 0.01ms !important; animation-duration: 0.01ms !important; }
}

/* 响应式 */
@media (max-width: 1024px) {
  .main-nav { gap: 22px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .faq-grid { grid-template-columns: 1fr; }
  .faq-intro { grid-column: span 12; }
  .faq-list { grid-column: span 12; }
  .feature-row .cell { padding-left: 0 !important; padding-right: 0 !important; }
  .features-rows { padding: 96px 0 48px; }
  .faq-section { padding: 96px 0; }
  .cta-section { padding: 100px 0; }
}
@media (max-width: 767px) {
  .main-nav { display: none; }
  .header-actions .search-btn { display: none; }
  .nav-toggle { display: flex; }
  .cat-hero { padding: 150px 0 80px; }
  .cat-hero h1 { font-size: clamp(30px, 7vw, 42px); }
  .cat-hero .lead { font-size: 15.5px; }
  .metrics-grid { grid-template-columns: 1fr 1fr; }
  .metric-item { padding: 30px 16px; }
  .metric-item:nth-child(2) { border-right: none; border-bottom: 1px solid rgba(201,169,98,0.16); }
  .metric-item:nth-child(3), .metric-item:nth-child(4) { border-bottom: none; }
  .metric-item:nth-child(3) { border-right: 1px solid rgba(201,169,98,0.16); }
  .metric-item:nth-child(1), .metric-item:nth-child(2) { border-bottom: 1px solid rgba(201,169,98,0.16); }
  .metric-item:nth-child(4) { border-right: none; }
  .feature-row { margin-bottom: 72px; }
  .feature-text { padding-right: 0; padding-bottom: 28px; }
  .feature-row.reversed .feature-text { padding-left: 0; }
  .features-rows { padding: 76px 0 32px; }
  .faq-section { padding: 76px 0; }
  .cta-section { padding: 80px 0; }
  .cta-actions .btn { width: 100%; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 520px) {
  .site-header { height: 64px; }
  .header-inner { height: 64px; gap: 12px; }
  .logo-main { font-size: 16px; }
  .logo-sub { font-size: 8px; }
  .btn-primary.header-cta { padding: 0 12px; font-size: 12px; height: 30px; }
  .metric-num { font-size: 24px; }
  .metric-label { font-size: 12px; }
  .cat-hero h1 { font-size: 28px; }
  .feature-num { font-size: 12px; }
  .feature-text h3 { font-size: 19px; }
  .feature-media-frame img { min-height: 200px; }
  .faq-question { font-size: 15px; padding: 18px 20px; }
  .faq-answer { font-size: 14px; }
}

/* roulang page: article */
:root {
    --bg-deep: #080A0D;
    --bg-main: #0C0F13;
    --bg-panel: #14181F;
    --bg-raise: #1D222B;
    --bg-post: #F5F1E8;
    --gold: #C9A962;
    --gold-deep: #A9884B;
    --gold-soft: rgba(201, 169, 98, 0.14);
    --teal: #4EC5B7;
    --text-1: #EDE8DE;
    --text-2: #9AA1AB;
    --text-3: #69717E;
    --line-soft: rgba(255, 255, 255, 0.07);
    --line-gold: rgba(201, 169, 98, 0.22);
    --shadow-card: 0 20px 44px rgba(0, 0, 0, 0.28);
    --radius: 14px;
    --font-title: "Noto Serif SC", "Source Han Serif SC", "思源宋体", "Songti SC", SimSun, serif;
    --font-body: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
    --font-num: "DIN Alternate", "Arial Narrow", ui-monospace, monospace;
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    background: var(--bg-main);
    color: var(--text-1);
    font-size: 16px;
    line-height: 1.75;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    font-size: inherit;
    font-weight: inherit;
    line-height: inherit;
    margin: 0;
}

p {
    margin: 0;
}

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

a {
    color: inherit;
    text-decoration: none;
    transition: color 0.25s ease;
}

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

button, input, textarea {
    font-family: inherit;
    font-size: inherit;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding-left: clamp(20px, 4vw, 44px);
    padding-right: clamp(20px, 4vw, 44px);
}

/* 按钮 */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    border: 1px solid transparent;
    transition: all 0.25s ease;
    font-size: 15px;
    padding: 12px 28px;
    line-height: 1;
}

.btn-primary {
    background: var(--gold);
    color: #0C0F13;
}

.btn-primary:hover {
    transform: translateY(-2px);
    filter: brightness(1.08);
    box-shadow: 0 10px 24px rgba(201, 169, 98, 0.22);
}

.btn-outline {
    background: transparent;
    border-color: var(--line-gold);
    color: var(--text-1);
}

.btn-outline:hover {
    background: var(--gold-soft);
    border-color: var(--gold);
}

.btn-sm {
    height: 32px;
    padding: 0 20px;
    font-size: 14px;
}

/* 导航 */
.site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 72px;
    background: rgba(12, 15, 19, 0.42);
    backdrop-filter: blur(18px) saturate(1.2);
    -webkit-backdrop-filter: blur(18px) saturate(1.2);
    border-bottom: 1px solid var(--line-soft);
    transition: background 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.site-header.scrolled {
    background: rgba(8, 10, 13, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    border-bottom: 1px solid var(--line-gold);
}

.header-inner {
    height: 72px;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}

.logo-mark {
    width: 24px;
    height: 24px;
    background: var(--gold);
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 900;
    color: #0C0F13;
    line-height: 1;
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-family: var(--font-title);
    font-size: 17px;
    font-weight: 700;
    color: var(--text-1);
    line-height: 1.2;
}

.logo-sub {
    font-size: 9px;
    letter-spacing: 0.2em;
    color: var(--gold);
    text-transform: uppercase;
    line-height: 1.4;
}

.main-nav {
    display: flex;
    align-items: center;
    gap: 36px;
}

.nav-link {
    position: relative;
    font-size: 15px;
    font-weight: 500;
    color: var(--text-2);
    padding: 8px 0;
    transition: color 0.25s ease;
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 24px;
    height: 2px;
    background: var(--gold);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.3s ease;
}

.nav-link:hover {
    color: var(--text-1);
}

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

.nav-link.active {
    color: var(--text-1);
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 14px;
}

.search-btn {
    background: transparent;
    border: 1px solid var(--line-soft);
    color: var(--text-2);
    border-radius: 6px;
    padding: 6px 16px;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.25s ease;
}

.search-btn:hover {
    border-color: var(--line-gold);
    color: var(--text-1);
}

.hamburger {
    display: none;
    background: transparent;
    border: none;
    cursor: pointer;
    width: 40px;
    height: 40px;
    position: relative;
    z-index: 1101;
}

.hamburger span {
    display: block;
    width: 22px;
    height: 2px;
    background: var(--text-1);
    margin: 5px auto;
    transition: all 0.3s ease;
}

.hamburger.open span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
}

.hamburger.open span:nth-child(2) {
    opacity: 0;
}

.hamburger.open span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
}

.mobile-drawer {
    display: none;
}

/* 文章 Hero */
.article-hero {
    min-height: 420px;
    padding: 150px 0 80px;
    background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
    position: relative;
}

.article-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(8, 10, 13, 0.86);
}

.article-hero .container {
    position: relative;
    z-index: 1;
}

.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 14px;
    color: var(--text-3);
    margin-bottom: 24px;
}

.breadcrumb a {
    color: var(--text-2);
}

.breadcrumb a:hover {
    color: var(--gold);
}

.breadcrumb .sep {
    color: var(--text-3);
}

.breadcrumb .current {
    color: var(--text-1);
}

.article-title {
    font-family: var(--font-title);
    font-size: clamp(34px, 5vw, 52px);
    font-weight: 900;
    line-height: 1.2;
    color: var(--text-1);
    max-width: 920px;
    margin-bottom: 20px;
}

.article-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 16px 28px;
    font-size: 14px;
    color: var(--text-2);
    margin-top: 28px;
}

.meta-item {
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.meta-item .label {
    color: var(--text-3);
}

.meta-item .value {
    color: var(--gold);
    font-family: var(--font-num);
}

/* 文章正文区 */
.article-wrap {
    padding: 60px 0 80px;
    background: var(--bg-main);
}

.article-body-panel {
    max-width: 760px;
    margin: 0 auto;
    background: var(--bg-post);
    border-radius: 18px;
    box-shadow: var(--shadow-card);
    padding: 56px;
    color: #22262C;
}

.article-content {
    font-size: 16.5px;
    line-height: 1.85;
    color: #22262C;
}

.article-content p {
    margin-bottom: 1.5em;
}

.article-content h2 {
    font-family: var(--font-title);
    font-size: 24px;
    font-weight: 700;
    color: #1A1D23;
    border-left: 3px solid var(--gold);
    padding-left: 16px;
    margin: 2em 0 1em;
}

.article-content h3 {
    font-family: var(--font-title);
    font-size: 20px;
    font-weight: 700;
    color: #1A1D23;
    margin: 1.6em 0 0.8em;
}

.article-content blockquote {
    font-size: 19px;
    line-height: 1.75;
    color: #3A3E46;
    border-left: 2px solid var(--gold);
    background: rgba(201, 169, 98, 0.06);
    padding: 18px 24px;
    margin: 1.6em 0;
    border-radius: 0 10px 10px 0;
}

.article-content img {
    border-radius: 12px;
    margin: 1.6em 0;
}

.article-content a {
    color: #8A6A2F;
    border-bottom: 1px solid rgba(138, 106, 47, 0.3);
}

.article-content a:hover {
    color: #6D5120;
    border-bottom-color: #6D5120;
}

.article-content ul,
.article-content ol {
    margin: 0 0 1.5em 1.4em;
}

.article-content ul li {
    list-style: disc;
    margin-bottom: 0.5em;
}

.article-content ol li {
    list-style: decimal;
    margin-bottom: 0.5em;
}

.article-footer {
    border-top: 1px solid rgba(0, 0, 0, 0.08);
    margin-top: 40px;
    padding-top: 32px;
    display: flex;
    flex-wrap: wrap;
    gap: 28px;
    align-items: center;
    justify-content: space-between;
}

.tags-cloud {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.tag {
    display: inline-block;
    padding: 5px 14px;
    background: rgba(201, 169, 98, 0.12);
    border: 1px solid rgba(201, 169, 98, 0.25);
    border-radius: 20px;
    font-size: 13px;
    color: #7A5C26;
    transition: all 0.25s ease;
}

.tag:hover {
    background: rgba(201, 169, 98, 0.22);
}

.share-box {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 14px;
    color: #69717E;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    height: 32px;
    padding: 0 14px;
    border: 1px solid rgba(0, 0, 0, 0.12);
    border-radius: 6px;
    background: transparent;
    font-size: 13px;
    color: #3A3E46;
    cursor: pointer;
    transition: all 0.25s ease;
}

.share-btn:hover {
    border-color: var(--gold);
    color: #8A6A2F;
    background: rgba(201, 169, 98, 0.08);
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 36px;
    font-size: 15px;
    color: #8A6A2F;
    font-weight: 500;
    transition: color 0.25s ease;
}

.back-link:hover {
    color: #6D5120;
}

.not-found-box {
    text-align: center;
    padding: 60px 20px;
    color: #3A3E46;
}

.not-found-box h2 {
    font-family: var(--font-title);
    font-size: 32px;
    margin-bottom: 16px;
}

.not-found-box p {
    margin-bottom: 28px;
    color: #69717E;
}

.not-found-box .btn {
    margin: 0 auto;
}

/* 相关推荐 */
.related-section {
    padding: 80px 0 100px;
    background: var(--bg-main);
    border-top: 1px solid var(--line-soft);
}

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

.section-eyebrow {
    font-size: 12px;
    letter-spacing: 0.18em;
    color: var(--gold);
    display: flex;
    align-items: center;
    gap: 14px;
    margin-bottom: 12px;
}

.section-eyebrow::before {
    content: "";
    width: 45px;
    height: 1px;
    background: var(--gold-deep);
}

.section-title {
    font-family: var(--font-title);
    font-size: clamp(26px, 3.2vw, 40px);
    font-weight: 700;
    line-height: 1.3;
}

.related-grid {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -14px;
}

.related-grid > .cell {
    flex: none;
    width: 100%;
    padding: 0 14px;
    margin-bottom: 28px;
}

.related-card {
    display: flex;
    gap: 20px;
    background: var(--bg-panel);
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    padding: 18px;
    height: 100%;
    transition: all 0.3s ease;
}

.related-card:hover {
    transform: translateY(-4px);
    border-color: var(--line-gold);
    box-shadow: var(--shadow-card);
}

.related-thumb {
    width: 96px;
    height: 96px;
    border-radius: 10px;
    object-fit: cover;
    flex-shrink: 0;
}

.related-info {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.related-cat {
    font-size: 12px;
    color: var(--gold);
    background: var(--gold-soft);
    border-radius: 4px;
    padding: 2px 8px;
    align-self: flex-start;
    margin-bottom: 8px;
}

.related-title {
    font-family: var(--font-title);
    font-size: 17px;
    font-weight: 700;
    line-height: 1.5;
    color: var(--text-1);
    transition: color 0.25s ease;
}

.related-card:hover .related-title {
    color: var(--gold);
}

/* 页脚 */
.site-footer {
    background: var(--bg-deep);
    border-top: 1px solid var(--line-gold);
    padding: 60px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1.5fr;
    gap: 44px;
    padding-bottom: 48px;
}

.footer-brand .logo {
    margin-bottom: 16px;
}

.footer-desc {
    font-size: 14px;
    line-height: 1.75;
    color: var(--text-3);
    max-width: 320px;
}

.footer-col h4,
.footer-subscribe h4 {
    font-family: var(--font-title);
    font-size: 16px;
    font-weight: 700;
    color: var(--text-1);
    margin-bottom: 18px;
}

.footer-col ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-col a {
    font-size: 14px;
    color: var(--text-2);
    transition: color 0.25s ease;
}

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

.footer-subscribe p {
    font-size: 14px;
    color: var(--text-3);
    margin-bottom: 16px;
}

.subscribe-form {
    display: flex;
    gap: 10px;
}

.subscribe-form input {
    flex: 1;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--line-soft);
    border-radius: 8px;
    padding: 10px 14px;
    color: var(--text-1);
    font-size: 14px;
    outline: none;
    transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.subscribe-form input:focus {
    border-color: var(--gold);
    box-shadow: 0 0 0 3px var(--gold-soft);
}

.subscribe-form input::placeholder {
    color: var(--text-3);
}

.footer-bottom {
    border-top: 1px solid var(--line-soft);
    padding: 22px 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 12px;
    font-size: 13px;
    color: var(--text-3);
}

/* 响应式 */
@media screen and (max-width: 63.999em) {
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }

    .related-grid > .cell {
        width: 50%;
    }
}

@media screen and (max-width: 39.999em) {
    .main-nav,
    .header-actions {
        display: none;
    }

    .hamburger {
        display: block;
    }

    .mobile-drawer {
        display: flex;
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: min(320px, 80vw);
        background: rgba(8, 10, 13, 0.94);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: space-between;
        padding: 100px 36px 40px;
        z-index: 1100;
        transform: translateX(105%);
        transition: transform 0.35s ease;
        border-left: 1px solid var(--line-gold);
    }

    .mobile-drawer.open {
        transform: translateX(0);
    }

    .mobile-nav {
        display: flex;
        flex-direction: column;
        gap: 28px;
    }

    .mobile-nav .nav-link {
        font-size: 20px;
        color: var(--text-1);
        font-family: var(--font-title);
    }

    body.drawer-open {
        overflow: hidden;
    }

    .article-hero {
        min-height: 340px;
        padding: 110px 0 50px;
    }

    .article-body-panel {
        padding: 32px 22px;
        border-radius: 12px;
    }

    .article-meta {
        gap: 8px 16px;
        font-size: 13px;
    }

    .related-grid > .cell {
        width: 100%;
    }

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
    }

    .subscribe-form {
        flex-direction: column;
    }

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

@media screen and (min-width: 64em) {
    .related-grid > .cell {
        width: 33.333%;
        margin-bottom: 0;
    }
}

/* 动画进入视口 */
.reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
    .reveal {
        opacity: 1;
        transform: none;
        transition: none;
    }
}

/* roulang page: category2 */
:root{
  --bg-deep:#080A0D;
  --bg-main:#0C0F13;
  --bg-panel:#14181F;
  --bg-raise:#1D222B;
  --bg-post:#F5F1E8;
  --gold:#C9A962;
  --gold-deep:#A9884B;
  --gold-soft:rgba(201,169,98,0.14);
  --teal:#4EC5B7;
  --text-1:#EDE8DE;
  --text-2:#9AA1AB;
  --text-3:#69717E;
  --line-soft:rgba(255,255,255,0.07);
  --line-gold:rgba(201,169,98,0.22);
  --shadow-card:0 20px 44px rgba(0,0,0,0.28);
  --radius:12px;
}
*,*::before,*::after{
  box-sizing:border-box;
  margin:0;
  padding:0;
}
html{
  scroll-behavior:smooth;
}
body{
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",sans-serif;
  background:var(--bg-main);
  color:var(--text-1);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
img{
  max-width:100%;
  display:block;
}
a{
  color:inherit;
  text-decoration:none;
  transition:color .25s ease;
}
a:hover{
  color:var(--gold);
}
ul,ol{
  list-style:none;
}
button,input{
  font-family:inherit;
  font-size:inherit;
}
.container{
  max-width:1280px;
  margin:0 auto;
  padding-left:clamp(20px,4vw,44px);
  padding-right:clamp(20px,4vw,44px);
}
section{
  position:relative;
}
.section-pad{
  padding:130px 0;
}
@media(max-width:900px){
  .section-pad{padding:84px 0;}
}
@media(max-width:620px){
  .section-pad{padding:60px 0;}
}
.eyebrow{
  font-size:12px;
  letter-spacing:.18em;
  color:var(--gold);
  text-transform:uppercase;
  margin-bottom:18px;
  font-weight:600;
  display:inline-flex;
  align-items:center;
  gap:12px;
}
.eyebrow::before{
  content:"";
  display:inline-block;
  width:45px;
  height:1px;
  background:var(--gold);
  flex:0 0 auto;
}
.eyebrow.center{
  justify-content:center;
}
.eyebrow.center::after{
  content:"";
  display:inline-block;
  width:45px;
  height:1px;
  background:var(--gold);
  flex:0 0 auto;
}
h1,h2,h3,h4{
  font-family:"Noto Serif SC","Source Han Serif SC","思源宋体","Songti SC",SimSun,serif;
  font-weight:700;
  color:var(--text-1);
  line-height:1.3;
}
h1{
  font-size:clamp(40px,6vw,72px);
  font-weight:900;
  line-height:1.15;
  letter-spacing:-0.01em;
}
h2{
  font-size:clamp(26px,3.2vw,40px);
  font-weight:700;
  line-height:1.3;
}
h3{
  font-size:20px;
  font-weight:700;
  line-height:1.4;
}
h4{
  font-size:12px;
  letter-spacing:.14em;
  color:var(--gold);
  font-weight:600;
  text-transform:uppercase;
}
p{
  color:var(--text-2);
  font-size:15px;
  line-height:1.75;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:none;
  cursor:pointer;
  border-radius:6px;
  font-size:15px;
  font-weight:600;
  padding:14px 32px;
  transition:all .3s ease;
  line-height:1.4;
  text-decoration:none;
}
.btn-primary{
  background:var(--gold);
  color:#11141A;
  box-shadow:0 4px 20px rgba(201,169,98,0.24);
}
.btn-primary:hover{
  transform:translateY(-2px);
  filter:brightness(1.08);
  box-shadow:0 8px 28px rgba(201,169,98,0.32);
  color:#11141A;
}
.btn-outline{
  background:transparent;
  color:var(--gold);
  border:1px solid var(--gold);
}
.btn-outline:hover{
  background:var(--gold-soft);
  transform:translateY(-2px);
  color:var(--gold);
}
.btn-sm{
  padding:9px 20px;
  font-size:13px;
  border-radius:5px;
}
/* ===== 导航 ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  height:72px;
  background:rgba(12,15,19,0.42);
  backdrop-filter:blur(18px) saturate(1.2);
  -webkit-backdrop-filter:blur(18px) saturate(1.2);
  border-bottom:1px solid var(--line-soft);
  transition:background .35s ease,border-color .35s ease,box-shadow .35s ease;
}
.site-header.scrolled{
  background:rgba(8,10,13,0.96);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid var(--line-gold);
  box-shadow:0 8px 24px rgba(0,0,0,0.35);
}
.nav-inner{
  height:72px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
}
.logo-mark{
  width:24px;height:24px;
  background:var(--gold);
  color:#0C0F13;
  font-family:"Noto Serif SC",serif;
  font-size:14px;
  font-weight:900;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:5px;
}
.logo-text{
  display:flex;
  flex-direction:column;
  line-height:1.15;
}
.logo-main{
  font-family:"Noto Serif SC","Source Han Serif SC","思源宋体",serif;
  font-size:17px;
  font-weight:700;
  color:var(--text-1);
  letter-spacing:.02em;
}
.logo-sub{
  font-size:9px;
  letter-spacing:.2em;
  color:var(--gold);
  text-transform:uppercase;
  margin-top:3px;
}
.main-nav{
  display:flex;
  align-items:center;
  gap:36px;
}
.nav-link{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  font-weight:500;
  padding:8px 0;
  transition:color .25s ease;
}
.nav-link::after{
  content:"";
  position:absolute;
  bottom:2px;left:50%;
  transform:translateX(-50%);
  width:0;height:2px;
  background:var(--gold);
  border-radius:1px;
  transition:width .3s ease;
}
.nav-link:hover{
  color:var(--text-1);
}
.nav-link:hover::after{
  width:24px;
}
.nav-link.active{
  color:var(--gold);
}
.nav-link.active::after{
  width:24px;
}
.nav-actions{
  display:flex;
  align-items:center;
  gap:18px;
  flex:0 0 auto;
}
.search-btn{
  background:transparent;
  border:1px solid var(--line-soft);
  width:36px;height:36px;
  border-radius:6px;
  color:var(--text-2);
  font-size:16px;
  cursor:pointer;
  display:flex;
  align-items:center;
  justify-content:center;
  transition:all .3s ease;
}
.search-btn:hover{
  border-color:var(--gold);
  color:var(--gold);
}
.hamburger{
  display:none;
  background:transparent;
  border:none;
  cursor:pointer;
  width:40px;height:40px;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:5px;
}
.hamburger span{
  display:block;
  width:20px;height:2px;
  background:var(--text-1);
  border-radius:2px;
  transition:all .3s ease;
}
.hamburger.open span:nth-child(1){
  transform:translateY(7px) rotate(45deg);
}
.hamburger.open span:nth-child(2){
  opacity:0;
}
.hamburger.open span:nth-child(3){
  transform:translateY(-7px) rotate(-45deg);
}
@media(max-width:900px){
  .main-nav{display:none;}
  .hamburger{display:flex;}
  .nav-actions .btn{display:none;}
}
.mobile-drawer{
  position:fixed;
  top:0;right:0;bottom:0;
  width:min(320px,86vw);
  background:rgba(8,10,13,0.96);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  z-index:1200;
  padding:96px 36px 44px;
  transform:translateX(100%);
  transition:transform .35s ease;
  display:flex;
  flex-direction:column;
}
.mobile-drawer.open{
  transform:translateX(0);
}
.mobile-drawer a.drawer-link{
  font-size:20px;
  color:var(--text-1);
  font-weight:600;
  padding:14px 0;
  border-bottom:1px solid var(--line-soft);
  font-family:"Noto Serif SC",serif;
}
.mobile-drawer a.drawer-link:hover{
  color:var(--gold);
}
.mobile-drawer .drawer-btn{
  margin-top:30px;
  display:inline-flex;
}
.drawer-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,0.55);
  z-index:1100;
  opacity:0;
  visibility:hidden;
  transition:all .35s ease;
}
.drawer-overlay.open{
  opacity:1;
  visibility:visible;
}
body.drawer-open{
  overflow:hidden;
}
/* ===== Hero ===== */
.page-hero{
  padding:190px 0 120px;
  background:
    linear-gradient(rgba(8,10,13,0.86),rgba(8,10,13,0.86)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  border-bottom:1px solid var(--line-gold);
  position:relative;
}
.page-hero .hero-content{
  max-width:720px;
}
.page-hero .hero-title{
  margin-top:10px;
  margin-bottom:20px;
}
.page-hero .hero-sub{
  font-size:18px;
  color:var(--text-2);
  max-width:560px;
  line-height:1.7;
}
/* ===== 品牌简介 ===== */
.intro-section{
  padding:130px 0;
}
@media(max-width:900px){
  .intro-section{padding:84px 0;}
}
.intro-grid{
  display:grid;
  grid-template-columns:1.2fr 1fr;
  gap:80px;
  align-items:center;
}
@media(max-width:900px){
  .intro-grid{grid-template-columns:1fr;gap:48px;}
}
.intro-text h2{
  margin-bottom:20px;
}
.intro-text p{
  margin-bottom:24px;
}
.intro-list{
  margin-top:28px;
}
.intro-list li{
  display:flex;
  align-items:flex-start;
  gap:14px;
  padding:14px 0;
  border-bottom:1px solid var(--line-soft);
}
.intro-list li:last-child{
  border-bottom:none;
}
.intro-list .dot{
  width:8px;height:8px;
  background:var(--gold);
  flex:0 0 auto;
  margin-top:10px;
}
.intro-list strong{
  display:block;
  font-size:16px;
  color:var(--text-1);
  font-weight:600;
}
.intro-list span{
  font-size:14px;
  color:var(--text-2);
  line-height:1.6;
}
.intro-media{
  position:relative;
  padding-top:12px;
}
.intro-media::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:100%;height:100%;
  border:1px solid var(--line-gold);
  border-radius:4px;
  transform:translate(14px,14px);
  pointer-events:none;
}
.intro-media img{
  border-radius:4px;
  width:100%;
  height:420px;
  object-fit:cover;
  filter:saturate(0.92) contrast(1.04);
  position:relative;
  z-index:1;
}
@media(max-width:900px){
  .intro-media img{height:320px;}
}
/* ===== 时间线 ===== */
.timeline-section{
  padding:130px 0;
  background:var(--bg-deep);
}
@media(max-width:900px){
  .timeline-section{padding:84px 0;}
}
.timeline-head{
  text-align:center;
  margin-bottom:80px;
}
.timeline{
  position:relative;
  max-width:1020px;
  margin:0 auto;
}
.timeline::before{
  content:"";
  position:absolute;
  top:0;bottom:0;
  left:50%;
  width:1px;
  background:var(--line-gold);
  transform:translateX(-50%);
}
.timeline-row{
  position:relative;
  width:50%;
  padding:0 56px 60px 0;
  text-align:right;
}
.timeline-row:nth-child(even){
  margin-left:50%;
  padding:0 0 60px 56px;
  text-align:left;
}
.timeline-row:last-child{
  padding-bottom:0;
}
.timeline-row::after{
  content:"";
  position:absolute;
  top:22px;
  right:-6px;
  width:12px;height:12px;
  background:var(--gold);
  transform:rotate(45deg);
  border:2px solid var(--bg-deep);
  box-shadow:0 0 0 1px var(--line-gold);
  z-index:2;
}
.timeline-row:nth-child(even)::after{
  left:-6px;right:auto;
}
.timeline-content{
  background:var(--bg-panel);
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  padding:28px 32px;
  transition:all .3s ease;
  display:inline-block;
  text-align:left;
  max-width:100%;
}
.timeline-content:hover{
  border-color:var(--line-gold);
  transform:translateY(-4px);
  box-shadow:var(--shadow-card);
}
.tl-year{
  font-family:"DIN Alternate","Arial Narrow",ui-monospace,monospace;
  font-size:16px;
  font-weight:700;
  color:var(--gold);
  letter-spacing:.06em;
  display:inline-block;
  background:var(--gold-soft);
  padding:3px 12px;
  border-radius:4px;
  margin-bottom:12px;
}
.timeline-content h3{
  font-size:20px;
  margin-bottom:8px;
}
.timeline-content p{
  font-size:14px;
  color:var(--text-2);
  line-height:1.7;
  margin:0;
}
@media(max-width:768px){
  .timeline::before{
    left:8px;
    transform:none;
  }
  .timeline-row,
  .timeline-row:nth-child(even){
    width:100%;
    margin-left:0;
    padding:0 0 36px 36px;
    text-align:left;
  }
  .timeline-row::after,
  .timeline-row:nth-child(even)::after{
    left:2px;
    right:auto;
    top:24px;
    width:10px;height:10px;
  }
  .timeline-content{
    padding:22px 22px;
  }
}
/* ===== 数据 ===== */
.stats-section{
  padding:110px 0;
}
@media(max-width:900px){
  .stats-section{padding:72px 0;}
}
.stats-panel{
  background:var(--bg-panel);
  border:1px solid var(--line-soft);
  border-radius:var(--radius);
  padding:56px 44px;
  position:relative;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:0;
}
.stats-panel::before,
.stats-panel::after{
  content:"";
  position:absolute;
  top:50%;
  width:12px;height:1px;
  background:var(--gold);
}
.stats-panel::before{
  left:-12px;
}
.stats-panel::after{
  right:-12px;
}
.stat-item{
  text-align:center;
  padding:12px 24px;
  border-left:1px solid var(--line-gold);
}
.stat-item:first-child{
  border-left:none;
}
.stat-num{
  font-family:"DIN Alternate","Arial Narrow",ui-monospace,monospace;
  font-size:clamp(26px,3.5vw,40px);
  font-weight:700;
  color:var(--gold);
  line-height:1.2;
  margin-bottom:8px;
}
.stat-label{
  font-size:13px;
  color:var(--text-2);
  letter-spacing:.04em;
}
@media(max-width:900px){
  .stats-panel{
    grid-template-columns:1fr 1fr;
    padding:40px 28px;
  }
  .stat-item{
    border-left:none;
    border-bottom:1px solid var(--line-soft);
    padding:22px 12px;
  }
  .stat-item:nth-child(odd){
    border-right:1px solid var(--line-gold);
  }
  .stat-item:nth-child(3),
  .stat-item:nth-child(4){
    border-bottom:none;
  }
}
@media(max-width:520px){
  .stats-panel{
    grid-template-columns:1fr;
    padding:32px 20px;
  }
  .stat-item,.stat-item:nth-child(odd){
    border-right:none;
    border-bottom:1px solid var(--line-soft);
  }
  .stat-item:last-child{
    border-bottom:none;
  }
}
/* ===== 资质墙 ===== */
.credential-section{
  padding:110px 0;
  background:var(--bg-deep);
}
@media(max-width:900px){
  .credential-section{padding:72px 0;}
}
.credential-head{
  text-align:center;
  margin-bottom:56px;
}
.credential-wrap{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
}
.credential-item{
  padding:18px 34px;
  font-family:"Noto Serif SC","Source Han Serif SC","思源宋体","Songti SC",SimSun,serif;
  font-size:15px;
  color:var(--text-1);
  border-left:1px solid var(--line-gold);
  text-align:center;
  flex:1 1 0;
  min-width:200px;
  transition:color .3s ease;
}
.credential-item:hover{
  color:var(--gold);
}
.credential-item:first-child{
  border-left:none;
}
@media(max-width:768px){
  .credential-wrap{
    flex-direction:column;
    align-items:center;
    gap:0;
  }
  .credential-item{
    border-left:none;
    border-bottom:1px solid var(--line-soft);
    min-width:0;
    width:100%;
    padding:20px 16px;
  }
  .credential-item:first-child{
    border-top:1px solid var(--line-soft);
  }
}
/* ===== CTA ===== */
.cta-section{
  padding:120px 0;
  background:
    linear-gradient(rgba(8,10,13,0.86),rgba(8,10,13,0.86)),
    url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  text-align:center;
  border-top:1px solid var(--line-gold);
}
@media(max-width:900px){
  .cta-section{padding:80px 0;}
}
.cta-section h2{
  font-size:clamp(26px,3.4vw,42px);
  margin-bottom:18px;
}
.cta-section p{
  max-width:640px;
  margin:0 auto 36px;
  font-size:16px;
}
.cta-actions{
  display:flex;
  justify-content:center;
  gap:18px;
  flex-wrap:wrap;
}
/* ===== 页脚 ===== */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--line-gold);
  padding:70px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 0.8fr 0.8fr 1.2fr;
  gap:48px;
  padding-bottom:50px;
}
@media(max-width:1000px){
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:40px;
  }
}
@media(max-width:620px){
  .footer-grid{
    grid-template-columns:1fr;
    gap:36px;
  }
}
.footer-brand .logo{
  margin-bottom:18px;
}
.footer-desc{
  font-size:14px;
  color:var(--text-3);
  line-height:1.7;
  margin-top:16px;
  max-width:320px;
}
.footer-col h4{
  margin-bottom:22px;
}
.footer-col ul li{
  margin-bottom:12px;
}
.footer-col ul a{
  font-size:14px;
  color:var(--text-2);
  position:relative;
  transition:color .25s ease;
}
.footer-col ul a:hover{
  color:var(--gold);
}
.footer-subscribe h4{
  margin-bottom:14px;
}
.footer-subscribe p{
  font-size:13px;
  color:var(--text-3);
  margin-bottom:18px;
  line-height:1.6;
}
.subscribe-form{
  display:flex;
  gap:10px;
  max-width:360px;
}
.subscribe-form input{
  flex:1;
  background:transparent;
  border:1px solid var(--line-soft);
  border-radius:6px;
  padding:11px 14px;
  font-size:14px;
  color:var(--text-1);
  outline:none;
  transition:all .3s ease;
  min-width:0;
}
.subscribe-form input:focus{
  border-color:var(--gold);
  box-shadow:0 0 0 3px var(--gold-soft);
}
.subscribe-form input::placeholder{
  color:var(--text-3);
}
.footer-bottom{
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:24px 0;
  border-top:1px solid var(--line-soft);
  font-size:13px;
  color:var(--text-3);
  flex-wrap:wrap;
  gap:10px;
}
.footer-bottom .copyright{
  color:var(--text-2);
}
@media(max-width:620px){
  .footer-bottom{
    flex-direction:column;
    text-align:center;
  }
}
/* ===== Reveal ===== */
.reveal{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .7s ease,transform .7s ease;
}
.reveal.in-view{
  opacity:1;
  transform:translateY(0);
}
@media(prefers-reduced-motion:reduce){
  .reveal{
    opacity:1;
    transform:none;
    transition:none;
  }
  .btn,.card,.timeline-content{
    transition:none;
  }
}
/* ===== 兼容 ===== */
::selection{
  background:var(--gold-soft);
  color:var(--gold);
}
::-webkit-scrollbar{
  width:10px;
}
::-webkit-scrollbar-track{
  background:var(--bg-main);
}
::-webkit-scrollbar-thumb{
  background:#2A2F3A;
  border-radius:5px;
}
::-webkit-scrollbar-thumb:hover{
  background:var(--gold-deep);
}
:focus-visible{
  outline:2px solid var(--gold);
  outline-offset:3px;
}

/* roulang page: category3 */
:root {
    --bg-deep: #080A0D;
    --bg-main: #0C0F13;
    --bg-panel: #14181F;
    --bg-raise: #1D222B;
    --bg-post: #F5F1E8;
    --gold: #C9A962;
    --gold-deep: #A9884B;
    --gold-soft: rgba(201, 169, 98, 0.14);
    --teal: #4EC5B7;
    --text-1: #EDE8DE;
    --text-2: #9AA1AB;
    --text-3: #69717E;
    --line-soft: rgba(255, 255, 255, 0.07);
    --line-gold: rgba(201, 169, 98, 0.22);
    --shadow-card: 0 20px 44px rgba(0, 0, 0, 0.28);
    --radius: 6px;
    --transition: 0.25s ease;
  }

  * {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
  }

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", sans-serif;
    background: var(--bg-main);
    color: var(--text-1);
    line-height: 1.75;
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
  }

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

  a {
    color: inherit;
    text-decoration: none;
  }

  button,
  input,
  textarea,
  select {
    font-family: inherit;
    font-size: inherit;
    color: inherit;
  }

  .container {
    max-width: 1280px;
    margin: 0 auto;
    padding-left: clamp(20px, 4vw, 44px);
    padding-right: clamp(20px, 4vw, 44px);
  }

  h1, h2, h3, h4 {
    font-family: "Noto Serif SC", "Source Han Serif SC", "宋体", "Songti SC", SimSun, serif;
    line-height: 1.3;
  }

  .serif {
    font-family: "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
  }

  .num {
    font-family: "DIN Alternate", "Arial Narrow", ui-monospace, monospace;
  }

  /* ===== Header / Nav ===== */
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: 72px;
    background: rgba(12, 15, 19, 0.42);
    backdrop-filter: blur(18px) saturate(1.2);
    -webkit-backdrop-filter: blur(18px) saturate(1.2);
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  }

  .site-header.scrolled {
    background: rgba(8, 10, 13, 0.96);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
    border-bottom-color: rgba(201, 169, 98, 0.18);
  }

  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    max-width: 1280px;
    margin: 0 auto;
    padding-left: clamp(20px, 4vw, 44px);
    padding-right: clamp(20px, 4vw, 44px);
  }

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

  .logo-mark {
    width: 24px;
    height: 24px;
    background: var(--gold);
    color: #0C0F13;
    font-family: "Noto Serif SC", serif;
    font-weight: 900;
    font-size: 15px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
  }

  .logo-text {
    display: flex;
    flex-direction: column;
    line-height: 1.1;
  }

  .logo-main {
    font-size: 16px;
    font-weight: 700;
    font-family: "Noto Serif SC", serif;
    color: var(--text-1);
    letter-spacing: 0.02em;
  }

  .logo-sub {
    font-size: 9px;
    letter-spacing: 0.2em;
    color: var(--gold);
    text-transform: uppercase;
    margin-top: 2px;
  }

  .main-nav {
    display: flex;
    align-items: center;
    gap: 32px;
  }

  .main-nav .nav-link {
    position: relative;
    font-size: 14px;
    color: var(--text-2);
    transition: color 0.25s ease;
    padding: 8px 0;
  }

  .main-nav .nav-link::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 20px;
    height: 2px;
    background: var(--gold);
    transform: scaleX(0);
    transform-origin: left center;
    transition: transform 0.3s ease, width 0.3s ease;
  }

  .main-nav .nav-link:hover {
    color: var(--text-1);
  }

  .main-nav .nav-link:hover::after {
    transform: scaleX(1);
    width: 100%;
  }

  .main-nav .nav-link.active {
    color: var(--text-1);
  }

  .main-nav .nav-link.active::after {
    content: "";
    position: absolute;
    left: 0;
    bottom: 0;
    width: 24px;
    height: 2px;
    background: var(--gold);
    transform: scaleX(1);
  }

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

  .search-btn {
    width: 32px;
    height: 32px;
    border: 1px solid var(--line-soft);
    background: transparent;
    border-radius: var(--radius);
    color: var(--text-2);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.25s ease;
    font-size: 13px;
  }

  .search-btn:hover {
    border-color: var(--line-gold);
    color: var(--gold);
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    border-radius: var(--radius);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: all 0.25s ease;
    padding: 10px 20px;
    line-height: 1.4;
  }

  .btn-primary {
    background: var(--gold);
    color: #14181F;
    box-shadow: 0 4px 14px rgba(201, 169, 98, 0.25);
  }

  .btn-primary:hover {
    transform: translateY(-2px);
    filter: brightness(1.08);
    box-shadow: 0 6px 20px rgba(201, 169, 98, 0.35);
  }

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

  .btn-outline:hover {
    background: var(--gold-soft);
  }

  .btn-sm {
    padding: 6px 14px;
    font-size: 13px;
    height: 32px;
  }

  .btn-lg {
    padding: 14px 32px;
    font-size: 15px;
  }

  .header-cta {
    height: 32px;
    padding: 0 18px;
  }

  /* Hamburger */
  .hamburger {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 40px;
    height: 40px;
    background: transparent;
    border: 1px solid var(--line-soft);
    border-radius: var(--radius);
    cursor: pointer;
    align-items: center;
  }

  .hamburger span {
    display: block;
    width: 18px;
    height: 2px;
    background: var(--text-1);
    transition: all 0.3s ease;
  }

  /* Drawer */
  .drawer-overlay {
    display: none;
    position: fixed;
    inset: 0;
    z-index: 1001;
    background: rgba(0, 0, 0, 0.6);
  }

  .drawer {
    position: fixed;
    top: 0;
    right: -320px;
    width: 300px;
    height: 100%;
    background: rgba(8, 10, 13, 0.94);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 1002;
    transition: right 0.35s ease;
    padding: 24px;
    display: flex;
    flex-direction: column;
    border-left: 1px solid var(--line-gold);
  }

  .drawer.open {
    right: 0;
  }

  .drawer .drawer-nav {
    display: flex;
    flex-direction: column;
    gap: 28px;
    margin-top: 56px;
  }

  .drawer .drawer-nav a {
    font-size: 17px;
    font-weight: 600;
    color: var(--text-2);
    transition: color 0.25s ease;
  }

  .drawer .drawer-nav a:hover {
    color: var(--gold);
  }

  .drawer .drawer-nav a.active {
    color: var(--gold);
  }

  .drawer .drawer-cta {
    margin-top: auto;
    width: 100%;
  }

  .drawer-close {
    align-self: flex-end;
    background: transparent;
    border: 1px solid var(--line-soft);
    color: var(--text-1);
    width: 32px;
    height: 32px;
    border-radius: var(--radius);
    font-size: 14px;
    cursor: pointer;
  }

  body.drawer-open {
    overflow: hidden;
  }

  /* ===== Hero / Banner ===== */
  .page-hero {
    position: relative;
    padding-top: 180px;
    padding-bottom: 100px;
    background-image: url('/assets/images/backpic/back-2.webp');
    background-size: cover;
    background-position: center;
    overflow: hidden;
  }

  .page-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to bottom, rgba(8, 10, 13, 0.82), rgba(12, 15, 19, 0.92));
    z-index: 1;
  }

  .page-hero::after {
    content: "";
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(201, 169, 98, 0.55), transparent);
    z-index: 2;
  }

  .hero-content {
    position: relative;
    z-index: 2;
    max-width: 800px;
  }

  .hero-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    letter-spacing: 0.18em;
    color: var(--gold);
    text-transform: uppercase;
    margin-bottom: 20px;
  }

  .hero-eyebrow::before {
    content: "";
    width: 40px;
    height: 1px;
    background: var(--gold);
  }

  .page-hero h1 {
    font-size: clamp(38px, 5.5vw, 64px);
    font-weight: 900;
    color: var(--text-1);
    line-height: 1.15;
    margin-bottom: 18px;
  }

  .hero-sub {
    font-size: 16px;
    color: var(--text-2);
    line-height: 1.8;
    max-width: 620px;
    margin-bottom: 36px;
  }

  .help-search {
    display: flex;
    gap: 12px;
    background: rgba(20, 24, 31, 0.85);
    border: 1px solid var(--line-soft);
    border-radius: 12px;
    padding: 8px;
    max-width: 620px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
  }

  .help-search:focus-within {
    border-color: var(--line-gold);
    box-shadow: 0 0 0 3px var(--gold-soft);
  }

  .help-search input {
    flex: 1;
    background: transparent;
    border: none;
    padding: 12px 16px;
    font-size: 15px;
    color: var(--text-1);
    outline: none;
  }

  .help-search input::placeholder {
    color: var(--text-3);
  }

  .help-search .btn {
    height: 44px;
    padding: 0 24px;
    white-space: nowrap;
  }

  .search-hint {
    margin-top: 16px;
    font-size: 13px;
    color: var(--text-3);
  }

  .search-hint a {
    color: var(--teal);
    margin: 0 6px;
  }

  .search-hint a:hover {
    color: var(--gold);
  }

  /* ===== Category tags ===== */
  .cat-strip {
    padding: 56px 0 0;
  }

  .cat-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    justify-content: center;
  }

  .cat-tag {
    display: inline-block;
    padding: 8px 20px;
    border: 1px solid var(--line-soft);
    border-radius: 100px;
    font-size: 13px;
    color: var(--text-2);
    transition: all 0.25s ease;
    background: rgba(20, 24, 31, 0.5);
    cursor: pointer;
  }

  .cat-tag:hover,
  .cat-tag.active {
    border-color: var(--line-gold);
    color: var(--gold);
    background: var(--gold-soft);
  }

  /* ===== Section base ===== */
  .section {
    padding: 100px 0;
  }

  .section-compact {
    padding: 60px 0;
  }

  .section-head {
    margin-bottom: 56px;
  }

  .section-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-size: 12px;
    letter-spacing: 0.18em;
    color: var(--gold);
    text-transform: uppercase;
    margin-bottom: 14px;
  }

  .section-eyebrow::before {
    content: "";
    width: 40px;
    height: 1px;
    background: var(--gold);
  }

  .section-title {
    font-size: clamp(28px, 3.2vw, 40px);
    font-weight: 700;
    color: var(--text-1);
    margin-bottom: 14px;
  }

  .section-desc {
    font-size: 15px;
    color: var(--text-2);
    max-width: 640px;
    line-height: 1.75;
  }

  /* ===== Quick help cards ===== */
  .quick-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
  }

  .quick-card {
    background: var(--bg-panel);
    border: 1px solid var(--line-soft);
    border-radius: 12px;
    padding: 32px 28px;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
  }

  .quick-card::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 2px;
    background: linear-gradient(to right, var(--gold), transparent);
    opacity: 0;
    transition: opacity 0.3s ease;
  }

  .quick-card:hover {
    transform: translateY(-4px);
    border-color: var(--line-gold);
    box-shadow: var(--shadow-card);
  }

  .quick-card:hover::before {
    opacity: 1;
  }

  .quick-num {
    font-family: "DIN Alternate", "Arial Narrow", ui-monospace, monospace;
    font-size: 13px;
    color: var(--gold);
    margin-bottom: 12px;
  }

  .quick-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
    color: var(--text-1);
  }

  .quick-card p {
    font-size: 13px;
    color: var(--text-2);
    line-height: 1.7;
  }

  /* ===== Main help area ===== */
  .help-main {
    padding: 40px 0 100px;
    position: relative;
  }

  .help-main::before {
    content: "";
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 1px;
    height: 100%;
    background: linear-gradient(to bottom, transparent, var(--line-gold), transparent);
    opacity: 0.3;
  }

  .help-main .grid-x {
    position: relative;
    z-index: 2;
  }

  /* FAQ accordion */
  .faq-panel {
    background: var(--bg-panel);
    border: 1px solid var(--line-soft);
    border-radius: 14px;
    overflow: hidden;
  }

  .faq-item {
    border-bottom: 1px solid var(--line-soft);
  }

  .faq-item:last-child {
    border-bottom: none;
  }

  .faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 24px 28px;
    background: transparent;
    border: none;
    cursor: pointer;
    text-align: left;
    transition: background 0.3s ease;
  }

  .faq-question:hover {
    background: rgba(255, 255, 255, 0.02);
  }

  .faq-question span {
    font-size: 15px;
    font-weight: 600;
    color: var(--text-1);
    font-family: "Noto Serif SC", "宋体", serif;
    line-height: 1.5;
  }

  .faq-icon {
    width: 20px;
    height: 20px;
    position: relative;
    flex-shrink: 0;
  }

  .faq-icon::before,
  .faq-icon::after {
    content: "";
    position: absolute;
    background: var(--gold);
    transition: all 0.3s ease;
    border-radius: 1px;
  }

  .faq-icon::before {
    width: 14px;
    height: 1px;
    top: 50%;
    left: 3px;
    transform: translateY(-50%);
  }

  .faq-icon::after {
    width: 1px;
    height: 14px;
    left: 50%;
    top: 3px;
    transform: translateX(-50%);
  }

  .faq-item.open .faq-icon::after {
    transform: translateX(-50%) scaleY(0);
  }

  .faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.35s ease;
  }

  .faq-answer-inner {
    padding: 0 28px 24px;
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.8;
  }

  .faq-empty {
    padding: 60px 28px;
    text-align: center;
    border: 1px dashed rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-2);
    font-size: 14px;
  }

  /* ===== Contact form ===== */
  .contact-card {
    background: var(--bg-panel);
    border: 1px solid var(--line-gold);
    border-radius: 14px;
    padding: 36px 32px;
    box-shadow: var(--shadow-card);
    margin-bottom: 24px;
  }

  .contact-card-head {
    margin-bottom: 24px;
  }

  .contact-card-head h3 {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 6px;
  }

  .contact-card-head p {
    font-size: 13px;
    color: var(--text-2);
  }

  .form-group {
    margin-bottom: 18px;
  }

  .form-group label {
    display: block;
    font-size: 13px;
    color: var(--text-2);
    margin-bottom: 8px;
    font-weight: 500;
  }

  .form-group input,
  .form-group select,
  .form-group textarea {
    width: 100%;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--line-soft);
    border-radius: 8px;
    padding: 12px 16px;
    font-size: 15px;
    color: var(--text-1);
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
    appearance: none;
  }

  .form-group select {
    background-image: none;
  }

  .form-group textarea {
    min-height: 100px;
    resize: vertical;
  }

  .form-group input:focus,
  .form-group select:focus,
  .form-group textarea:focus {
    border-color: var(--line-gold);
    box-shadow: 0 0 0 3px var(--gold-soft);
  }

  .form-group input::placeholder,
  .form-group textarea::placeholder {
    color: var(--text-3);
  }

  .form-error {
    margin-top: 8px;
    font-size: 13px;
    color: #D98E8E;
    display: none;
  }

  .form-submit {
    width: 100%;
    margin-top: 8px;
  }

  /* ===== Contact info ===== */
  .contact-channels {
    margin-top: 24px;
  }

  .channel-item {
    display: flex;
    align-items: flex-start;
    gap: 14px;
    padding: 16px 0;
    border-bottom: 1px solid var(--line-soft);
  }

  .channel-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  .channel-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--gold-soft);
    color: var(--gold);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: 700;
    flex-shrink: 0;
  }

  .channel-item h4 {
    font-size: 14px;
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--text-1);
  }

  .channel-item p {
    font-size: 13px;
    color: var(--text-2);
    line-height: 1.5;
  }

  .service-hours {
    background: rgba(78, 197, 183, 0.08);
    border: 1px solid rgba(78, 197, 183, 0.18);
    border-radius: 10px;
    padding: 16px 18px;
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 20px;
  }

  .service-hours .dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--teal);
    flex-shrink: 0;
  }

  .service-hours p {
    font-size: 13px;
    color: var(--text-2);
  }

  .service-hours strong {
    color: var(--teal);
    font-weight: 600;
  }

  /* ===== Guide steps section ===== */
  .guide-section {
    background: var(--bg-deep);
    border-top: 1px solid var(--line-soft);
    border-bottom: 1px solid var(--line-soft);
  }

  .steps-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
  }

  .step-item {
    position: relative;
    padding: 40px 20px 20px 0;
  }

  .step-item::after {
    content: "";
    position: absolute;
    right: -16px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 80px;
    background: var(--line-gold);
  }

  .step-item:last-child::after {
    display: none;
  }

  .step-num {
    font-family: "DIN Alternate", ui-monospace, monospace;
    font-size: 44px;
    font-weight: 700;
    color: transparent;
    -webkit-text-stroke: 1px var(--gold);
    line-height: 1;
    margin-bottom: 20px;
    display: block;
  }

  .step-item h3 {
    font-size: 19px;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--text-1);
  }

  .step-item p {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.75;
  }

  /* ===== CTA ===== */
  .cta-section {
    position: relative;
    padding: 110px 0;
    background-image: url('/assets/images/backpic/back-3.png');
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    overflow: hidden;
  }

  .cta-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: rgba(8, 10, 13, 0.86);
  }

  .cta-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 720px;
    margin: 0 auto;
  }

  .cta-inner h2 {
    font-size: clamp(28px, 3.5vw, 42px);
    font-weight: 700;
    color: var(--text-1);
    margin-bottom: 16px;
    line-height: 1.3;
  }

  .cta-inner p {
    font-size: 16px;
    color: var(--text-2);
    margin-bottom: 36px;
    line-height: 1.8;
  }

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

  .cta-buttons .btn {
    min-width: 140px;
  }

  /* ===== Footer ===== */
  .site-footer {
    background: var(--bg-deep);
    border-top: 1px solid var(--line-gold);
    padding-top: 64px;
  }

  .footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1.4fr;
    gap: 48px;
    padding-bottom: 48px;
  }

  .footer-brand .logo {
    margin-bottom: 18px;
  }

  .footer-desc {
    font-size: 14px;
    color: var(--text-2);
    line-height: 1.75;
    margin-top: 14px;
    max-width: 320px;
  }

  .footer-col h4 {
    font-size: 14px;
    font-weight: 700;
    color: var(--text-1);
    margin-bottom: 18px;
    font-family: "PingFang SC", "Microsoft YaHei", sans-serif;
  }

  .footer-col ul {
    list-style: none;
    padding: 0;
    margin: 0;
  }

  .footer-col li {
    margin-bottom: 10px;
  }

  .footer-col a {
    font-size: 14px;
    color: var(--text-2);
    transition: color 0.25s ease;
  }

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

  .footer-subscribe p {
    font-size: 13px;
    color: var(--text-2);
    margin-bottom: 16px;
    line-height: 1.6;
  }

  .subscribe-form {
    display: flex;
    gap: 8px;
  }

  .subscribe-form input {
    flex: 1;
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--line-soft);
    border-radius: 8px;
    padding: 10px 14px;
    font-size: 13px;
    color: var(--text-1);
    outline: none;
    transition: border-color 0.3s ease, box-shadow 0.3s ease;
  }

  .subscribe-form input:focus {
    border-color: var(--line-gold);
    box-shadow: 0 0 0 3px var(--gold-soft);
  }

  .subscribe-form input::placeholder {
    color: var(--text-3);
  }

  .footer-bottom {
    border-top: 1px solid var(--line-soft);
    padding: 24px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
  }

  .copyright {
    font-size: 13px;
    color: var(--text-3);
  }

  .icp {
    font-size: 13px;
    color: var(--text-3);
  }

  /* ===== Image placeholder ===== */
  .img-placeholder {
    background: #1D222B;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    color: var(--text-3);
    border-radius: 8px;
    min-height: 100px;
  }

  /* ===== Reveal animation ===== */
  .reveal {
    opacity: 0;
    transform: translateY(18px);
    transition: opacity 0.6s ease, transform 0.6s ease;
  }

  .reveal.visible {
    opacity: 1;
    transform: translateY(0);
  }

  @media (prefers-reduced-motion: reduce) {
    .reveal {
      opacity: 1;
      transform: none;
      transition: opacity 0.3s ease;
    }

    html {
      scroll-behavior: auto;
    }
  }

  /* ===== Responsive ===== */
  @media screen and (max-width: 1024px) {
    .quick-grid {
      grid-template-columns: repeat(2, 1fr);
    }

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

    .steps-grid {
      grid-template-columns: 1fr;
      gap: 24px;
    }

    .step-item::after {
      display: none;
    }

    .step-item {
      padding: 24px 0;
    }
  }

  @media screen and (max-width: 840px) {
    .main-nav,
    .header-actions .search-btn,
    .header-actions .header-cta {
      display: none;
    }

    .hamburger {
      display: flex;
    }

    .section {
      padding: 70px 0;
    }

    .page-hero {
      padding-top: 140px;
      padding-bottom: 70px;
    }

    .help-main {
      padding-bottom: 70px;
    }
  }

  @media screen and (max-width: 640px) {
    .quick-grid {
      grid-template-columns: 1fr;
    }

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

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

    .help-search {
      flex-direction: column;
      background: transparent;
      border: none;
      padding: 0;
      box-shadow: none;
    }

    .help-search input {
      background: rgba(20, 24, 31, 0.85);
      border: 1px solid var(--line-soft);
      border-radius: 10px;
      margin-bottom: 8px;
    }

    .help-search:focus-within {
      box-shadow: none;
    }

    .contact-card {
      padding: 24px 20px;
    }

    .faq-question {
      padding: 20px;
    }

    .faq-answer-inner {
      padding: 0 20px 20px;
    }
  }