/* roulang page: index */
:root{
  --bg-base:#080D18;
  --bg-panel:rgba(13,22,40,0.72);
  --bg-elevated:rgba(21,32,55,0.85);
  --accent:#2DE1C2;
  --accent-blue:#3E7BFA;
  --text-primary:#F0F6FF;
  --text-secondary:#A7B4CC;
  --text-muted:#6E7B99;
  --border-glass:rgba(255,255,255,0.08);
  --radius-card:16px;
  --shadow-card:0 4px 24px rgba(0,0,0,0.28);
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:'Inter','PingFang SC','Microsoft YaHei','Noto Sans SC',sans-serif;
  background:var(--bg-base);
  color:var(--text-secondary);
  line-height:1.75;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:all .3s cubic-bezier(.4,0,.2,1)}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;outline:none;border:none;background:none}
ul,ol{list-style:none}
.container{max-width:1240px;margin:0 auto;padding-left:clamp(16px,4vw,32px);padding-right:clamp(16px,4vw,32px)}
.glass-card{
  background:var(--bg-panel);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--border-glass);
  border-radius:16px;
  box-shadow:var(--shadow-card);
  transition:all .3s cubic-bezier(.4,0,.2,1);
}
.glass-card:hover{
  border-color:rgba(255,255,255,.2);
  box-shadow:0 8px 40px rgba(45,225,194,.12),0 4px 16px rgba(0,0,0,.4);
  transform:translateY(-4px);
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:12px 28px;
  border-radius:999px;
  font-size:15px;
  font-weight:500;
  letter-spacing:.02em;
  cursor:pointer;
  transition:all .3s cubic-bezier(.4,0,.2,1);
  white-space:nowrap;
}
.btn-glow{
  background:linear-gradient(135deg,#2DE1C2,#3E7BFA);
  color:#fff;
  box-shadow:0 0 24px rgba(45,225,194,.35),0 4px 12px rgba(0,0,0,.4);
}
.btn-glow:hover{
  filter:brightness(1.08);
  box-shadow:0 0 40px rgba(45,225,194,.55),0 8px 20px rgba(0,0,0,.5);
  transform:translateY(-2px);
}
.btn-glow:active{
  transform:translateY(1px) scale(.98);
  box-shadow:0 0 12px rgba(45,225,194,.25),0 2px 6px rgba(0,0,0,.4);
}
.btn-ghost{
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.15);
  color:#fff;
}
.btn-ghost:hover{
  background:rgba(255,255,255,.1);
  border-color:rgba(255,255,255,.3);
  transform:translateY(-2px);
}
.btn-ghost:active{transform:translateY(0) scale(.98)}
.btn-text{
  color:var(--accent);
  font-size:15px;
  font-weight:500;
  display:inline-flex;
  align-items:center;
  gap:6px;
  cursor:pointer;
  transition:all .3s;
}
.btn-text:hover{text-decoration:underline;color:#7ff5e2}
.btn:disabled{opacity:.5;cursor:not-allowed;box-shadow:none}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 14px;
  border-radius:999px;
  font-size:12px;
  font-weight:500;
  background:rgba(45,225,194,.1);
  color:var(--accent);
  border:1px solid rgba(45,225,194,.2);
}
.badge-gray{
  background:rgba(255,255,255,.05);
  color:#A7B4CC;
  border:1px solid rgba(255,255,255,.1);
}
.h2-deco{position:relative;padding-top:24px}
.h2-deco::before{
  content:'';
  position:absolute;
  top:0;left:0;
  width:40px;height:3px;
  border-radius:2px;
  background:var(--accent);
  box-shadow:0 0 12px rgba(45,225,194,.4);
}
.bg-grid{
  background-image:linear-gradient(rgba(255,255,255,.03) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.03) 1px,transparent 1px);
  background-size:60px 60px;
}
.no-scrollbar::-webkit-scrollbar{display:none}
.no-scrollbar{-ms-overflow-style:none;scrollbar-width:none}
.section-pad{padding:clamp(64px,10vw,120px) 0}
.text-gradient{
  background:linear-gradient(135deg,#2DE1C2,#3E7BFA);
  -webkit-background-clip:text;
  background-clip:text;
  -webkit-text-fill-color:transparent;
}
/* ===== Header ===== */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:rgba(8,13,24,.85);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid rgba(255,255,255,.06);
  transition:background .4s,box-shadow .4s;
}
.site-header.scrolled{
  background:rgba(5,8,16,.95);
  box-shadow:0 8px 32px rgba(0,0,0,.4);
}
.header-brand-row{
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.logo{
  display:flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.logo-mark{
  width:40px;height:40px;
  border-radius:10px;
  background:linear-gradient(135deg,rgba(45,225,194,.2),rgba(62,123,250,.15));
  border:1px solid rgba(45,225,194,.4);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:800;
  font-size:16px;
  color:var(--accent);
  box-shadow:0 0 18px rgba(45,225,194,.25),inset 0 1px 0 rgba(255,255,255,.1);
  letter-spacing:0;
}
.logo-text{
  font-size:20px;
  font-weight:700;
  color:#fff;
  letter-spacing:-.01em;
  white-space:nowrap;
}
.logo-text span{color:var(--accent)}
.header-actions{
  display:flex;
  align-items:center;
  gap:12px;
}
.header-search-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:8px 18px;
  border-radius:999px;
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);
  color:#A7B4CC;
  font-size:14px;
  cursor:pointer;
  transition:all .3s;
}
.header-search-btn:hover{
  border-color:rgba(45,225,194,.4);
  color:var(--accent);
  background:rgba(45,225,194,.06);
}
.header-contact-btn{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 18px;
  border-radius:999px;
  border:1px solid var(--accent);
  color:var(--accent);
  font-size:14px;
  cursor:pointer;
  background:transparent;
  transition:all .3s;
  white-space:nowrap;
}
.header-contact-btn:hover{
  background:rgba(45,225,194,.1);
  box-shadow:0 0 16px rgba(45,225,194,.2);
}
.header-channel-row{
  height:48px;
  display:flex;
  align-items:center;
  border-top:1px solid rgba(255,255,255,.04);
  overflow-x:auto;
  white-space:nowrap;
  scrollbar-width:none;
  -ms-overflow-style:none;
}
.header-channel-row::-webkit-scrollbar{display:none}
.channel-nav{
  display:flex;
  align-items:center;
  gap:6px;
  height:100%;
}
.channel-link{
  display:inline-flex;
  align-items:center;
  padding:7px 18px;
  border-radius:999px;
  font-size:14px;
  color:var(--text-secondary);
  cursor:pointer;
  transition:all .3s;
  border:1px solid transparent;
  white-space:nowrap;
}
.channel-link:hover{
  background:rgba(255,255,255,.05);
  color:#fff;
}
.channel-link.active{
  background:rgba(45,225,194,.12);
  color:var(--accent);
  border-color:rgba(45,225,194,.35);
  box-shadow:0 0 12px rgba(45,225,194,.1);
  font-weight:500;
}
.menu-toggle{
  display:none;
  width:42px;height:42px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(255,255,255,.04);
  color:#fff;
  font-size:18px;
  cursor:pointer;
  align-items:center;
  justify-content:center;
  transition:all .3s;
}
.menu-toggle:hover{background:rgba(45,225,194,.1);border-color:rgba(45,225,194,.3)}
/* ===== Mobile drawer ===== */
.mobile-drawer{
  position:fixed;
  top:0;right:-320px;
  width:300px;
  height:100vh;
  background:rgba(8,13,24,.98);
  backdrop-filter:blur(30px);
  z-index:1100;
  padding:24px;
  display:flex;
  flex-direction:column;
  gap:8px;
  transition:right .35s cubic-bezier(.4,0,.2,1);
  border-left:1px solid rgba(255,255,255,.08);
}
.mobile-drawer.open{right:0}
.drawer-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,.6);
  backdrop-filter:blur(4px);
  z-index:1050;
  opacity:0;
  pointer-events:none;
  transition:opacity .3s;
}
.drawer-overlay.open{opacity:1;pointer-events:auto}
.drawer-close{
  align-self:flex-end;
  width:36px;height:36px;
  display:flex;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  color:#A7B4CC;
  cursor:pointer;
  font-size:18px;
  border:1px solid rgba(255,255,255,.1);
  transition:all .3s;
}
.drawer-close:hover{color:#fff;background:rgba(255,255,255,.05)}
.drawer-link{
  display:block;
  padding:14px 16px;
  border-radius:12px;
  font-size:15px;
  color:var(--text-secondary);
  transition:all .3s;
  border:1px solid transparent;
}
.drawer-link:hover{background:rgba(255,255,255,.05);color:#fff}
.drawer-link.active{background:rgba(45,225,194,.1);color:var(--accent);border-color:rgba(45,225,194,.25)}
/* ===== Hero ===== */
.hero-section{
  position:relative;
  padding:calc(112px + clamp(60px,8vw,100px)) 0 clamp(48px,6vw,80px);
  background-image:linear-gradient(90deg,rgba(8,13,24,.95) 0%,rgba(8,13,24,.85) 40%,rgba(8,13,24,.5) 100%),url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.hero-section::before{
  content:'';
  position:absolute;
  top:-120px;right:-100px;
  width:420px;height:420px;
  border-radius:50%;
  background:rgba(45,225,194,.08);
  filter:blur(80px);
  pointer-events:none;
}
.hero-section::after{
  content:'';
  position:absolute;
  bottom:-80px;left:30%;
  width:300px;height:300px;
  border-radius:50%;
  background:rgba(62,123,250,.08);
  filter:blur(70px);
  pointer-events:none;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
  position:relative;
  z-index:2;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 16px;
  border-radius:999px;
  background:rgba(45,225,194,.08);
  border:1px solid rgba(45,225,194,.25);
  color:var(--accent);
  font-size:13px;
  margin-bottom:24px;
}
.hero-title{
  font-size:clamp(2.4rem,5vw,3.75rem);
  font-weight:700;
  color:var(--text-primary);
  line-height:1.2;
  letter-spacing:-.02em;
  margin-bottom:20px;
}
.hero-subtitle{
  font-size:clamp(1rem,1.4vw,1.15rem);
  color:var(--text-secondary);
  max-width:540px;
  line-height:1.8;
  margin-bottom:36px;
}
.hero-ctas{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:56px}
.hero-metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  border-top:1px solid rgba(255,255,255,.08);
  padding-top:32px;
}
.metric-item .metric-num{
  font-size:clamp(1.6rem,2.4vw,2.25rem);
  font-weight:700;
  color:var(--accent);
  line-height:1.3;
  letter-spacing:-.02em;
}
.metric-item .metric-label{
  font-size:13px;
  color:var(--text-muted);
  margin-top:4px;
}
.hero-cover{
  position:relative;
  transform:rotate(2deg);
  padding:16px;
  border-radius:20px;
}
.hero-cover .cover-inner{
  border-radius:14px;
  overflow:hidden;
  border:1px solid rgba(255,255,255,.1);
  box-shadow:0 20px 60px rgba(0,0,0,.5);
}
.hero-cover img{width:100%;height:auto;object-fit:cover}
.hero-glow{
  position:absolute;
  top:-40px;right:-30px;
  width:200px;height:200px;
  border-radius:50%;
  background:rgba(45,225,194,.18);
  filter:blur(60px);
  pointer-events:none;
  z-index:-1;
}
/* ===== Section general ===== */
.section-head{
  margin-bottom:48px;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.section-head .section-title{
  font-size:clamp(1.75rem,3vw,2.35rem);
  font-weight:600;
  color:var(--text-primary);
  line-height:1.3;
  letter-spacing:-.01em;
}
.section-head .section-subtitle{
  color:var(--text-muted);
  font-size:14px;
  max-width:520px;
  line-height:1.7;
}
/* ===== News ===== */
.news-area{min-height:200px}
.news-featured-card{
  position:relative;
  display:block;
  overflow:hidden;
  border-radius:16px;
  border:1px solid var(--border-glass);
  background:var(--bg-panel);
  backdrop-filter:blur(14px);
  transition:all .3s cubic-bezier(.4,0,.2,1);
  box-shadow:var(--shadow-card);
}
.news-featured-card:hover{
  border-color:rgba(45,225,194,.25);
  box-shadow:0 8px 40px rgba(45,225,194,.1),0 4px 16px rgba(0,0,0,.4);
  transform:translateY(-4px);
}
.news-featured-card .featured-img{
  aspect-ratio:16/9;
  object-fit:cover;
  width:100%;
  background:#0f1a30;
}
.news-featured-body{padding:24px}
.news-featured-body h3{
  font-size:1.3rem;
  font-weight:600;
  color:var(--text-primary);
  margin:12px 0 8px;
  line-height:1.5;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-featured-body p{
  color:var(--text-muted);
  font-size:14px;
  line-height:1.7;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.news-small-item{
  display:flex;
  align-items:center;
  gap:16px;
  padding:14px 16px;
  border-radius:12px;
  background:rgba(255,255,255,.02);
  border:1px solid rgba(255,255,255,.04);
  transition:all .3s;
  margin-bottom:12px;
}
.news-small-item:last-child{margin-bottom:0}
.news-small-item:hover{
  background:rgba(255,255,255,.04);
  border-color:rgba(45,225,194,.2);
  transform:translateX(4px);
}
.news-small-item .news-time{
  font-size:12px;
  color:var(--text-muted);
  white-space:nowrap;
  flex-shrink:0;
}
.news-small-item .news-title{
  flex:1;
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.6;
  display:-webkit-box;
  -webkit-line-clamp:1;
  -webkit-box-orient:vertical;
  overflow:hidden;
  min-width:0;
}
.news-small-item:hover .news-title{color:#fff}
.news-empty{
  min-height:200px;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  gap:12px;
}
.news-empty i{font-size:44px;color:rgba(255,255,255,.1)}
.news-empty p{color:var(--text-muted);font-size:14px}
/* ===== Steps ===== */
.steps-grid{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:32px;
  position:relative;
}
.steps-grid::before{
  content:'';
  position:absolute;
  top:76px;left:12%;
  right:12%;
  height:1px;
  border-top:1px dashed rgba(255,255,255,.1);
  pointer-events:none;
}
.step-card{
  position:relative;
  padding:36px 28px 32px;
  border-radius:16px;
  background:rgba(13,22,40,.65);
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.08);
  transition:all .3s cubic-bezier(.4,0,.2,1);
  box-shadow:0 4px 24px rgba(0,0,0,.28);
  z-index:1;
}
.step-card:hover{
  transform:translateY(-6px);
  border-color:rgba(45,225,194,.25);
  box-shadow:0 12px 44px rgba(45,225,194,.1),0 4px 16px rgba(0,0,0,.4);
  background:rgba(16,28,48,.75);
}
.step-num{
  width:56px;height:56px;
  border-radius:50%;
  border:2px solid rgba(45,225,194,.6);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  font-weight:700;
  color:var(--accent);
  margin-bottom:24px;
  box-shadow:0 0 20px rgba(45,225,194,.15),inset 0 0 12px rgba(45,225,194,.06);
  position:relative;
  background:rgba(8,13,24,.4);
}
.step-icon{
  width:44px;height:44px;
  border-radius:12px;
  background:rgba(45,225,194,.1);
  color:var(--accent);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  margin-bottom:20px;
}
.step-card h3{
  font-size:1.15rem;
  font-weight:600;
  color:var(--text-primary);
  margin-bottom:10px;
}
.step-card p{
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.75;
}
/* ===== Cases ===== */
.case-card{
  border-radius:16px;
  overflow:hidden;
  background:rgba(13,22,40,.72);
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:0 4px 24px rgba(0,0,0,.28);
  transition:all .3s cubic-bezier(.4,0,.2,1);
  display:flex;
  flex-direction:column;
}
.case-card:hover{
  transform:translateY(-4px);
  border-color:rgba(45,225,194,.2);
  box-shadow:0 12px 40px rgba(45,225,194,.12),0 4px 16px rgba(0,0,0,.4);
}
.case-card .case-img-wrap{
  position:relative;
  aspect-ratio:16/9;
  overflow:hidden;
  background:rgba(255,255,255,.03);
}
.case-card .case-img-wrap img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s cubic-bezier(.4,0,.2,1);
}
.case-card:hover .case-img-wrap img{transform:scale(1.05)}
.case-card .case-img-wrap::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(to top,rgba(8,13,24,.6),transparent 50%);
  pointer-events:none;
}
.case-body{padding:24px;display:flex;flex-direction:column;flex:1}
.case-body .case-title{
  font-size:1.1rem;
  font-weight:600;
  color:var(--text-primary);
  margin:10px 0 8px;
  line-height:1.5;
}
.case-body .case-desc{
  font-size:13px;
  color:var(--text-muted);
  line-height:1.7;
  flex:1;
}
.case-filter{
  display:flex;
  gap:8px;
  flex-wrap:wrap;
}
.filter-tab{
  padding:6px 16px;
  border-radius:999px;
  font-size:13px;
  color:var(--text-secondary);
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.08);
  cursor:pointer;
  transition:all .3s;
}
.filter-tab:hover{color:#fff;background:rgba(255,255,255,.08)}
.filter-tab.active{
  background:rgba(45,225,194,.12);
  color:var(--accent);
  border-color:rgba(45,225,194,.3);
  box-shadow:0 0 12px rgba(45,225,194,.08);
}
/* ===== FAQ ===== */
.faq-item{
  border-radius:16px;
  background:rgba(13,22,40,.72);
  backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.08);
  margin-bottom:14px;
  overflow:hidden;
  transition:all .3s;
}
.faq-item:hover{border-color:rgba(45,225,194,.18)}
.faq-item.active{border-color:rgba(45,225,194,.3)}
.faq-question{
  width:100%;
  padding:22px 24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  cursor:pointer;
  text-align:left;
  background:none;
}
.faq-question span{
  font-size:15px;
  font-weight:500;
  color:var(--text-primary);
  line-height:1.5;
  flex:1;
}
.faq-icon{
  width:28px;height:28px;
  flex-shrink:0;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--accent);
  font-size:15px;
  border:1px solid rgba(45,225,194,.3);
  transition:transform .35s ease,background .3s;
}
.faq-item.active .faq-icon{
  transform:rotate(45deg);
  background:rgba(45,225,194,.15);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease;
}
.faq-answer-inner{
  padding:0 24px 22px;
  font-size:14px;
  color:var(--text-secondary);
  line-height:1.8;
  border-top:1px solid rgba(255,255,255,.04);
  padding-top:16px;
  margin-top:0;
}
/* ===== CTA form ===== */
.cta-panel{
  border-radius:24px;
  background:rgba(255,255,255,.03);
  backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,.1);
  box-shadow:0 24px 80px rgba(0,0,0,.4);
  position:relative;
  overflow:hidden;
}
.cta-panel::before{
  content:'';
  position:absolute;
  inset:0;
  background-image:linear-gradient(rgba(45,225,194,.04) 1px,transparent 1px),linear-gradient(90deg,rgba(45,225,194,.04) 1px,transparent 1px);
  background-size:40px 40px;
  pointer-events:none;
}
.cta-panel .cta-inner{
  position:relative;
  display:grid;
  grid-template-columns:1.1fr .9fr;
  gap:56px;
  padding:clamp(28px,4vw,56px);
}
.form-wrap{padding:8px}
.form-title{
  font-size:clamp(1.75rem,3vw,2.35rem);
  font-weight:600;
  color:var(--text-primary);
  line-height:1.3;
  margin-bottom:12px;
}
.form-desc{color:var(--text-muted);font-size:14px;margin-bottom:28px}
.form-group{margin-bottom:20px}
.form-label{
  display:block;
  font-size:13px;
  color:var(--text-secondary);
  margin-bottom:8px;
}
.form-label .req{color:#f87171;margin-left:2px}
.form-input,.form-select,.form-textarea{
  width:100%;
  padding:12px 16px;
  border-radius:10px;
  background:rgba(255,255,255,.04);
  border:1px solid rgba(255,255,255,.12);
  color:var(--text-primary);
  font-size:14px;
  transition:all .3s;
}
.form-input:focus,.form-select:focus,.form-textarea:focus{
  border-color:rgba(45,225,194,.6);
  box-shadow:0 0 0 3px rgba(45,225,194,.12);
  background:rgba(255,255,255,.05);
}
.form-input::placeholder,.form-textarea::placeholder{color:rgba(255,255,255,.25)}
.form-select{
  appearance:none;
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236E7B99' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 16px center;
  padding-right:40px;
  cursor:pointer;
}
.form-select option{background:#0B1220;color:#F0F6FF}
.form-textarea{min-height:120px;resize:vertical}
.cta-info-list{display:flex;flex-direction:column;gap:24px}
.cta-info-item{display:flex;gap:16px;align-items:flex-start}
.cta-info-item i{
  width:40px;height:40px;
  flex-shrink:0;
  border-radius:12px;
  background:rgba(45,225,194,.1);
  color:var(--accent);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  border:1px solid rgba(45,225,194,.15);
}
.cta-info-item h4{
  font-size:15px;
  font-weight:600;
  color:var(--text-primary);
  margin-bottom:4px;
}
.cta-info-item p{font-size:13px;color:var(--text-muted);line-height:1.7}
/* ===== Footer ===== */
.site-footer{
  background:#060B15;
  border-top:1px solid rgba(45,225,194,.1);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:48px;
  padding-bottom:48px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{
  font-size:13px;
  color:var(--text-muted);
  line-height:1.8;
  max-width:280px;
  margin-bottom:20px;
}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,.1);
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--text-muted);
  font-size:14px;
  transition:all .3s;
}
.footer-social a:hover{color:var(--accent);border-color:rgba(45,225,194,.3);background:rgba(45,225,194,.05)}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--text-primary);
  margin-bottom:20px;
  position:relative;
  padding-bottom:10px;
}
.footer-col h4::after{
  content:'';
  position:absolute;
  bottom:0;left:0;
  width:24px;height:2px;
  background:var(--accent);
  border-radius:1px;
  opacity:.6;
}
.footer-links{display:flex;flex-direction:column;gap:12px}
.footer-links a{
  font-size:13px;
  color:var(--text-muted);
  transition:all .3s;
  display:inline-flex;
  align-items:center;
  gap:8px;
}
.footer-links a:hover{color:var(--accent);transform:translateX(4px)}
.footer-links a i{font-size:10px;color:rgba(45,225,194,.4)}
.footer-contact{display:flex;flex-direction:column;gap:14px}
.footer-contact-item{display:flex;gap:12px;align-items:flex-start;font-size:13px;color:var(--text-muted)}
.footer-contact-item i{color:var(--accent);margin-top:4px;width:16px}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.06);
  padding:20px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  flex-wrap:wrap;
  font-size:12px;
  color:rgba(255,255,255,.3);
}
/* ===== Scroll fade animation ===== */
@keyframes fadeInUp{
  from{opacity:0;transform:translateY(30px)}
  to{opacity:1;transform:translateY(0)}
}
.hero-animate{
  animation:fadeInUp .6s ease-out both;
}
.hero-animate-delay-1{animation-delay:.15s}
.hero-animate-delay-2{animation-delay:.3s}
.hero-animate-delay-3{animation-delay:.45s}
/* ===== Responsive ===== */
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:40px}
  .hero-cover{max-width:560px;margin:0 auto;transform:rotate(1deg)}
  .hero-metrics{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:1fr 1fr;gap:24px}
  .steps-grid::before{display:none}
  .cta-panel .cta-inner{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
  .header-contact-btn span{display:none}
}
@media (max-width:767px){
  .menu-toggle{display:flex}
  .header-search-btn{display:none}
  .header-channel-row{display:none}
  .steps-grid{grid-template-columns:1fr}
  .section-head{flex-direction:column;align-items:flex-start}
  .case-filter{width:100%;overflow-x:auto;padding-bottom:8px;flex-wrap:nowrap}
  .filter-tab{flex-shrink:0}
  .hero-section{padding-top:calc(64px + 48px)}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;text-align:center}
  .cta-panel .cta-inner{padding:24px}
  .logo-text{font-size:18px}
}
@media (max-width:520px){
  .hero-metrics{grid-template-columns:1fr 1fr;gap:16px}
  .metric-item .metric-num{font-size:1.5rem}
  .btn{padding:12px 18px;font-size:14px}
  .header-contact-btn{padding:8px 12px}
}

/* roulang page: category1 */
:root {
  --bg-base: #080D18;
  --bg-panel: rgba(13, 22, 40, 0.72);
  --bg-elevated: rgba(21, 32, 55, 0.85);
  --brand: #2DE1C2;
  --blue: #3E7BFA;
  --text-main: #F0F6FF;
  --text-body: #A7B4CC;
  --text-muted: #6E7B99;
  --border-white: rgba(255, 255, 255, 0.08);
  --radius-card: 16px;
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.28);
  --shadow-glow: 0 0 24px rgba(45, 225, 194, 0.35), 0 4px 12px rgba(0, 0, 0, 0.4);
  --font-cn: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --font-en: "Inter", "DIN Alternate", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-cn);
  background-color: var(--bg-base);
  color: var(--text-body);
  line-height: 1.75;
  font-size: 1rem;
  overflow-x: hidden;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color .25s ease;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}

ul, ol {
  list-style: none;
}

.container {
  max-width: 1240px;
  margin: 0 auto;
  padding-left: clamp(16px, 4vw, 32px);
  padding-right: clamp(16px, 4vw, 32px);
}

.glass-card {
  background: var(--bg-panel);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border: 1px solid var(--border-white);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  transition: all .3s cubic-bezier(.4, 0, .2, 1);
  position: relative;
}

.glass-card:hover {
  border-color: rgba(255, 255, 255, 0.2);
  box-shadow: 0 8px 40px rgba(45, 225, 194, 0.12), 0 4px 16px rgba(0, 0, 0, 0.4);
  transform: translateY(-4px);
}

.btn-glow {
  background: linear-gradient(135deg, #2DE1C2, #3E7BFA);
  color: #fff;
  box-shadow: var(--shadow-glow);
  border-radius: 999px;
  padding: 12px 28px;
  font-weight: 600;
  font-size: .95rem;
  transition: all .3s cubic-bezier(.4, 0, .2, 1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  cursor: pointer;
}

.btn-glow:hover {
  filter: brightness(1.08);
  box-shadow: 0 0 32px rgba(45, 225, 194, 0.55), 0 4px 16px rgba(0, 0, 0, 0.45);
  transform: translateY(-2px);
}

.btn-glow:active {
  transform: translateY(1px) scale(0.98);
  box-shadow: 0 0 12px rgba(45, 225, 194, 0.2);
}

.btn-glass {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: #F0F6FF;
  border-radius: 999px;
  padding: 12px 28px;
  font-weight: 500;
  font-size: .95rem;
  transition: all .3s ease;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.btn-glass:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.3);
  transform: translateY(-2px);
}

.h2-deco {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.3;
  position: relative;
  padding-top: 24px;
}

.h2-deco::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--brand);
  border-radius: 2px;
}

.badge-cat {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: .75rem;
  border-radius: 999px;
  background: rgba(45, 225, 194, 0.1);
  color: var(--brand);
  border: 1px solid rgba(45, 225, 194, 0.2);
  font-weight: 500;
}

.badge-normal {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: .75rem;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-muted);
  border: 1px solid rgba(255, 255, 255, 0.1);
}

.bg-grid {
  background-image: linear-gradient(rgba(45, 225, 194, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 225, 194, 0.03) 1px, transparent 1px);
  background-size: 40px 40px;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(8, 13, 24, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: background .3s ease, box-shadow .3s ease;
}

.site-header.scrolled {
  background: rgba(5, 8, 16, 0.95);
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.4);
}

.header-top {
  height: 64px;
  display: flex;
  align-items: center;
}

.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
}

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

.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, rgba(45, 225, 194, 0.2), rgba(62, 123, 250, 0.2));
  border: 1px solid rgba(45, 225, 194, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--brand);
  box-shadow: 0 0 16px rgba(45, 225, 194, 0.15);
}

.logo-text {
  font-size: 1.3rem;
  font-weight: 700;
  color: #F0F6FF;
  letter-spacing: -0.01em;
}

.logo-text span {
  color: var(--brand);
  font-weight: 500;
  margin-left: 2px;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-search {
  display: flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: .9rem;
  padding: 8px 16px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 999px;
  cursor: pointer;
  transition: all .3s ease;
  background: rgba(255, 255, 255, 0.03);
}

.header-search:hover {
  border-color: rgba(45, 225, 194, 0.3);
  color: var(--brand);
}

.header-contact {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--brand);
  font-size: .9rem;
  font-weight: 500;
  padding: 8px 18px;
  border: 1px solid rgba(45, 225, 194, 0.3);
  border-radius: 999px;
  transition: all .3s ease;
}

.header-contact:hover {
  background: rgba(45, 225, 194, 0.08);
  box-shadow: 0 0 16px rgba(45, 225, 194, 0.1);
}

.header-nav-wrap {
  height: 48px;
  border-top: 1px solid rgba(255, 255, 255, 0.04);
  display: flex;
  align-items: center;
}

.channel-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  white-space: nowrap;
}

.channel-nav::-webkit-scrollbar {
  display: none;
}

.channel-link {
  display: inline-flex;
  align-items: center;
  padding: 6px 18px;
  border-radius: 999px;
  font-size: .92rem;
  font-weight: 500;
  color: var(--text-body);
  border: 1px solid transparent;
  transition: all .3s ease;
  position: relative;
  cursor: pointer;
}

.channel-link:hover {
  color: var(--text-main);
  background: rgba(255, 255, 255, 0.04);
}

.channel-link.active {
  background: rgba(45, 225, 194, 0.12);
  color: var(--brand);
  border-color: rgba(45, 225, 194, 0.25);
  box-shadow: 0 0 12px rgba(45, 225, 194, 0.08);
}

/* 移动端汉堡 */
.mobile-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.15);
  color: var(--text-main);
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  cursor: pointer;
  background: rgba(255, 255, 255, 0.03);
}

/* ===== Hero ===== */
.category-hero {
  position: relative;
  padding-top: 112px;
  min-height: 520px;
  display: flex;
  align-items: center;
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  background-color: #0B1220;
}

.category-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(8, 13, 24, 0.92) 0%, rgba(8, 13, 24, 0.65) 50%, rgba(8, 13, 24, 0.35) 100%);
}

.category-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(45, 225, 194, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(45, 225, 194, 0.02) 1px, transparent 1px);
  background-size: 36px 36px;
}

.category-hero-content {
  position: relative;
  z-index: 2;
  padding-top: 60px;
  padding-bottom: 60px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .85rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--text-muted);
  transition: color .3s;
}

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

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

.breadcrumb .sep {
  color: rgba(255, 255, 255, 0.2);
}

.category-hero h1 {
  font-size: clamp(2.4rem, 5vw, 3.5rem);
  font-weight: 700;
  color: var(--text-main);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 16px;
}

.category-hero p.lead {
  max-width: 560px;
  font-size: 1.05rem;
  color: var(--text-body);
  line-height: 1.8;
  margin-bottom: 28px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
}

.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 24px 48px;
  margin-top: 48px;
}

.hero-stat {
  text-align: left;
}

.hero-stat .num {
  font-family: var(--font-en);
  font-size: 2rem;
  font-weight: 700;
  color: var(--brand);
  line-height: 1.2;
}

.hero-stat .label {
  font-size: .85rem;
  color: var(--text-muted);
  margin-top: 4px;
}

/* ===== Section 通用 ===== */
.section {
  padding: clamp(64px, 10vw, 100px) 0;
  position: relative;
}

.section-alt {
  background: rgba(13, 22, 40, 0.4);
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.section-head .desc {
  max-width: 480px;
  font-size: .95rem;
  color: var(--text-muted);
}

/* ===== 精选内容卡片 ===== */
.case-card {
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.case-card .thumb {
  aspect-ratio: 16 / 9;
  overflow: hidden;
  position: relative;
  background: rgba(255, 255, 255, 0.04);
}

.case-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s cubic-bezier(.4, 0, .2, 1);
}

.case-card:hover .thumb img {
  transform: scale(1.05);
}

.case-card .body {
  padding: 20px 24px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.case-card .title {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.4;
}

.case-card .summary {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.7;
  flex: 1;
}

.case-card .meta {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .8rem;
  color: var(--text-muted);
  padding-top: 8px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* ===== 服务特点 ===== */
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.feature-card {
  padding: 28px 24px;
}

.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(45, 225, 194, 0.1);
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 16px;
}

.feature-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
}

.feature-card p {
  font-size: .88rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== 流程 ===== */
.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}

.process-step {
  position: relative;
  text-align: center;
  padding: 32px 20px;
}

.process-step::before {
  content: '';
  position: absolute;
  top: 47px;
  left: calc(50% + 32px);
  width: calc(100% - 64px);
  border-top: 1px dashed rgba(255, 255, 255, 0.12);
  z-index: 0;
}

.process-step:last-child::before {
  display: none;
}

.step-num {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  border: 2px solid var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 700;
  font-family: var(--font-en);
  color: var(--brand);
  background: rgba(45, 225, 194, 0.08);
  margin: 0 auto 16px;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 20px rgba(45, 225, 194, 0.15);
}

.process-step h3 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
}

.process-step p {
  font-size: .85rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ===== 列表内容 ===== */
.list-content {
  border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.list-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 20px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
  transition: all .3s ease;
}

.list-item:hover {
  padding-left: 8px;
}

.list-item .thumb {
  width: 120px;
  height: 80px;
  border-radius: 12px;
  overflow: hidden;
  flex-shrink: 0;
  background: rgba(255, 255, 255, 0.04);
}

.list-item .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.list-item .info {
  flex: 1;
  min-width: 0;
}

.list-item .info h3 {
  font-size: 1.05rem;
  font-weight: 500;
  color: var(--text-main);
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color .3s;
}

.list-item:hover .info h3 {
  color: var(--brand);
}

.list-item .info p {
  font-size: .85rem;
  color: var(--text-muted);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.list-item .meta {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--text-muted);
  font-size: .8rem;
  flex-shrink: 0;
}

/* ===== 场景 ===== */
.scene-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.scene-card {
  padding: 32px 28px;
  text-align: center;
}

.scene-icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: rgba(45, 225, 194, 0.08);
  border: 1px solid rgba(45, 225, 194, 0.25);
  color: var(--brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin: 0 auto 16px;
}

.scene-card h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
}

.scene-card p {
  font-size: .88rem;
  color: var(--text-muted);
  line-height: 1.7;
}

/* ===== FAQ ===== */
.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  overflow: hidden;
  border-radius: 16px;
}

.faq-item.active {
  border-color: rgba(45, 225, 194, 0.25);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  gap: 16px;
  transition: background .3s;
}

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

.faq-question h3 {
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-main);
  line-height: 1.5;
}

.faq-icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid rgba(255, 255, 255, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .85rem;
  color: var(--text-body);
  transition: all .3s ease;
  flex-shrink: 0;
}

.faq-item.active .faq-icon {
  transform: rotate(45deg);
  border-color: var(--brand);
  color: var(--brand);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s cubic-bezier(.4, 0, .2, 1);
}

.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: .92rem;
  color: var(--text-muted);
  line-height: 1.8;
}

.faq-more {
  text-align: center;
  margin-top: 24px;
  font-size: .9rem;
  color: var(--text-muted);
}

.faq-more a {
  color: var(--brand);
  font-weight: 500;
}

.faq-more a:hover {
  text-decoration: underline;
}

/* ===== CTA ===== */
.cta-banner {
  position: relative;
  border-radius: 24px;
  padding: 48px;
  overflow: hidden;
  background: linear-gradient(135deg, rgba(13, 22, 40, 0.9), rgba(21, 32, 55, 0.85));
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 24px;
}

.cta-banner::before {
  content: '';
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(45, 225, 194, 0.12);
  filter: blur(60px);
}

.cta-banner h2 {
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
}

.cta-banner p {
  font-size: .92rem;
  color: var(--text-muted);
}

.cta-banner .actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

/* ===== Footer ===== */
.site-footer {
  background: #060B15;
  border-top: 1px solid rgba(45, 225, 194, 0.08);
  padding-top: 60px;
  margin-top: 60px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
}

.footer-brand p {
  font-size: .9rem;
  color: var(--text-muted);
  line-height: 1.7;
  margin: 16px 0 20px;
  max-width: 320px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  border: 1px solid rgba(255, 255, 255, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 1rem;
  transition: all .3s ease;
}

.footer-social a:hover {
  border-color: var(--brand);
  color: var(--brand);
  background: rgba(45, 225, 194, 0.06);
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 16px;
}

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

.footer-links a {
  font-size: .9rem;
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: all .3s;
}

.footer-links a i {
  font-size: .7rem;
  color: rgba(255, 255, 255, 0.15);
  transition: all .3s;
}

.footer-links a:hover {
  color: var(--brand);
  padding-left: 4px;
}

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

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

.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .9rem;
  color: var(--text-muted);
}

.footer-contact-item i {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  color: var(--brand);
  flex-shrink: 0;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: .8rem;
  color: var(--text-muted);
}

/* ===== 移动端 ===== */
@media (max-width: 1024px) {
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }

  .process-step::before {
    display: none;
  }

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

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

@media (max-width: 768px) {
  .header-top {
    height: 60px;
  }

  .mobile-toggle {
    display: flex;
  }

  .header-search {
    display: none;
  }

  .header-contact {
    display: none;
  }

  .header-nav-wrap {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: rgba(5, 8, 16, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    height: auto;
    padding: 16px 20px;
    z-index: 99;
  }

  .header-nav-wrap.open {
    display: block;
  }

  .channel-nav {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
  }

  .channel-link {
    padding: 12px 16px;
    border-radius: 12px;
    justify-content: flex-start;
  }

  .category-hero {
    padding-top: 60px;
  }

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

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

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

  .list-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }

  .list-item .thumb {
    width: 100%;
    height: 160px;
  }

  .list-item .info h3,
  .list-item .info p {
    white-space: normal;
  }

  .list-item .meta {
    width: 100%;
  }

  .cta-banner {
    padding: 32px 24px;
  }

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

  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-buttons .btn-glow,
  .hero-buttons .btn-glass {
    justify-content: center;
  }
}

@media (max-width: 520px) {
  .logo-text {
    font-size: 1.1rem;
  }

  .category-hero h1 {
    font-size: 2rem;
  }

  .section {
    padding: 56px 0;
  }

  .feature-card,
  .scene-card {
    padding: 24px 20px;
  }
}

/* roulang page: article */
:root {
            --bg-base: #080D18;
            --bg-panel: rgba(13, 22, 40, 0.72);
            --bg-elevated: rgba(21, 32, 55, 0.85);
            --border-color: rgba(255, 255, 255, 0.08);
            --brand: #2DE1C2;
            --blue: #3E7BFA;
            --text: #F0F6FF;
            --body: #A7B4CC;
            --muted: #6E7B99;
            --dark: #060B15;
            --radius-card: 16px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.28);
            --shadow-hover: 0 8px 40px rgba(45, 225, 194, 0.12), 0 4px 16px rgba(0, 0, 0, 0.4);
            --transition: all .3s cubic-bezier(.4, 0, .2, 1);
        }

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

        html {
            scroll-behavior: smooth;
        }

        body {
            font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
            background: var(--bg-base);
            color: var(--body);
            line-height: 1.75;
            -webkit-font-smoothing: antialiased;
            padding-top: 112px;
        }

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

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

        button {
            font-family: inherit;
        }

        .container {
            max-width: 1240px;
            margin: 0 auto;
            padding-left: clamp(16px, 4vw, 32px);
            padding-right: clamp(16px, 4vw, 32px);
        }

        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(8, 13, 24, 0.85);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
            transition: var(--transition);
        }

        .site-header.scrolled {
            background: rgba(5, 8, 16, 0.95);
            box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
        }

        .header-top {
            height: 64px;
            display: flex;
            align-items: center;
        }

        .header-top-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            width: 100%;
        }

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

        .logo-mark {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: linear-gradient(135deg, var(--brand), var(--blue));
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            font-weight: 800;
            color: #fff;
            box-shadow: 0 0 16px rgba(45, 225, 194, 0.4);
            flex-shrink: 0;
        }

        .logo-text {
            font-size: 20px;
            font-weight: 700;
            color: var(--text);
            letter-spacing: -0.02em;
            line-height: 1.2;
        }

        .logo-text span {
            color: var(--brand);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 16px;
        }

        .header-search {
            display: flex;
            align-items: center;
            gap: 6px;
            color: var(--muted);
            font-size: 14px;
            padding: 8px 14px;
            border-radius: 999px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            transition: var(--transition);
        }

        .header-search:hover {
            color: var(--brand);
            border-color: rgba(45, 225, 194, 0.3);
        }

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 10px 24px;
            border-radius: 999px;
            font-size: 14px;
            font-weight: 500;
            line-height: 1.4;
            transition: var(--transition);
            cursor: pointer;
            border: none;
            white-space: nowrap;
        }

        .btn-outline {
            background: transparent;
            border: 1px solid rgba(45, 225, 194, 0.5);
            color: var(--brand);
        }

        .btn-outline:hover {
            background: rgba(45, 225, 194, 0.12);
            border-color: var(--brand);
            box-shadow: 0 0 16px rgba(45, 225, 194, 0.25);
        }

        .btn-glow {
            background: linear-gradient(135deg, #2DE1C2, #3E7BFA);
            color: #fff;
            box-shadow: 0 0 24px rgba(45, 225, 194, 0.35), 0 4px 12px rgba(0, 0, 0, 0.4);
        }

        .btn-glow:hover {
            box-shadow: 0 0 40px rgba(45, 225, 194, 0.55), 0 6px 20px rgba(0, 0, 0, 0.5);
            transform: translateY(-1px);
        }

        .btn-glow:active {
            transform: translateY(1px);
            box-shadow: 0 0 16px rgba(45, 225, 194, 0.25);
        }

        .channel-nav {
            height: 48px;
            border-top: 1px solid rgba(255, 255, 255, 0.04);
        }

        .channel-nav-inner {
            display: flex;
            align-items: center;
            gap: 6px;
            height: 48px;
            overflow-x: auto;
            scrollbar-width: none;
            -ms-overflow-style: none;
        }

        .channel-nav-inner::-webkit-scrollbar {
            display: none;
        }

        .channel-link {
            display: inline-flex;
            align-items: center;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: 14px;
            white-space: nowrap;
            color: var(--body);
            border: 1px solid transparent;
            transition: var(--transition);
        }

        .channel-link:hover {
            color: var(--text);
            background: rgba(255, 255, 255, 0.06);
        }

        .channel-link.active {
            color: var(--brand);
            background: rgba(45, 225, 194, 0.12);
            border-color: rgba(45, 225, 194, 0.25);
            box-shadow: 0 0 12px rgba(45, 225, 194, 0.15);
        }

        .nav-trigger {
            display: none;
            width: 40px;
            height: 40px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(255, 255, 255, 0.05);
            color: var(--text);
            font-size: 18px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        .mobile-drawer {
            position: fixed;
            top: 0;
            right: -100%;
            width: 280px;
            height: 100vh;
            background: rgba(8, 13, 24, 0.98);
            z-index: 200;
            padding: 24px;
            transition: right .4s cubic-bezier(.4, 0, .2, 1);
            border-left: 1px solid rgba(255, 255, 255, 0.06);
            overflow-y: auto;
        }

        .mobile-drawer.open {
            right: 0;
        }

        .drawer-overlay {
            position: fixed;
            inset: 0;
            background: rgba(0, 0, 0, 0.6);
            z-index: 190;
            opacity: 0;
            pointer-events: none;
            transition: opacity .3s;
        }

        .drawer-overlay.open {
            opacity: 1;
            pointer-events: auto;
        }

        .drawer-header {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding-bottom: 16px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .drawer-close {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: transparent;
            color: var(--muted);
            font-size: 18px;
            cursor: pointer;
        }

        .drawer-close:hover {
            color: var(--brand);
            border-color: rgba(45, 225, 194, 0.3);
        }

        .drawer-nav {
            display: flex;
            flex-direction: column;
            gap: 8px;
            margin-top: 24px;
        }

        .drawer-link {
            padding: 12px 16px;
            border-radius: 12px;
            color: var(--body);
            font-size: 15px;
            transition: var(--transition);
        }

        .drawer-link:hover {
            background: rgba(255, 255, 255, 0.05);
            color: var(--text);
        }

        .drawer-link.active {
            background: rgba(45, 225, 194, 0.12);
            color: var(--brand);
        }

        .breadcrumb ol {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 8px;
            list-style: none;
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 24px;
            padding: 0;
        }

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

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

        .breadcrumb .current {
            color: var(--text);
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
            max-width: 320px;
        }

        .breadcrumb .sep {
            color: rgba(255, 255, 255, 0.2);
        }

        .article-hero {
            position: relative;
            padding: clamp(40px, 8vw, 72px) 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: linear-gradient(135deg, rgba(8, 13, 24, 0.95) 20%, rgba(8, 13, 24, 0.65) 60%, rgba(8, 13, 24, 0.8));
        }

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

        .article-hero h1 {
            font-size: clamp(1.75rem, 4vw, 2.75rem);
            font-weight: 700;
            color: var(--text);
            line-height: 1.25;
            letter-spacing: -0.02em;
            max-width: 760px;
            margin-bottom: 18px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: var(--muted);
        }

        .article-meta i {
            color: var(--brand);
            margin-right: 4px;
        }

        .article-meta .dot {
            color: rgba(255, 255, 255, 0.2);
        }

        .article-content {
            font-size: 16px;
            line-height: 1.85;
            color: #CBD5E1;
        }

        .article-content p {
            margin-bottom: 1.5em;
            max-width: 720px;
        }

        .article-content h2 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text);
            margin: 2em 0 0.8em;
            padding-left: 16px;
            border-left: 3px solid var(--brand);
            line-height: 1.3;
        }

        .article-content h3 {
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text);
            margin: 1.8em 0 0.8em;
        }

        .article-content h4 {
            font-size: 1.05rem;
            font-weight: 500;
            color: var(--text);
            margin: 1.5em 0 0.6em;
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 1.5em 1.2em;
            padding-left: 0.5em;
        }

        .article-content li {
            margin-bottom: 0.5em;
            padding-left: 0.25em;
        }

        .article-content blockquote {
            border-left: 3px solid var(--brand);
            background: rgba(255, 255, 255, 0.05);
            padding: 16px 20px;
            border-radius: 0 12px 12px 0;
            margin: 1.5em 0;
            color: var(--body);
        }

        .article-content a {
            color: var(--brand);
            text-decoration: underline;
            text-underline-offset: 4px;
        }

        .article-content a:hover {
            color: var(--blue);
        }

        .article-content img {
            border-radius: 12px;
            margin: 24px 0;
            box-shadow: var(--shadow-card);
        }

        .article-content code {
            background: rgba(255, 255, 255, 0.06);
            padding: 2px 8px;
            border-radius: 6px;
            font-size: 0.9em;
            color: var(--brand);
        }

        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            margin-top: 32px;
            padding-top: 24px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .tag {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 6px 16px;
            border-radius: 999px;
            font-size: 13px;
            background: rgba(45, 225, 194, 0.1);
            color: var(--brand);
            border: 1px solid rgba(45, 225, 194, 0.2);
        }

        .tag i {
            font-size: 11px;
        }

        .article-back {
            margin-top: 32px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.08);
        }

        .article-back a {
            color: var(--muted);
            font-size: 14px;
            display: inline-flex;
            align-items: center;
            gap: 8px;
        }

        .article-back a:hover {
            color: var(--brand);
        }

        .article-empty {
            text-align: center;
            padding: 60px 20px;
            background: rgba(13, 22, 40, 0.72);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 16px;
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
        }

        .article-empty i {
            font-size: 48px;
            color: rgba(255, 255, 255, 0.15);
            margin-bottom: 16px;
        }

        .article-empty h2 {
            font-size: 1.5rem;
            color: var(--text);
            margin-bottom: 8px;
        }

        .article-empty p {
            color: var(--muted);
            margin-bottom: 24px;
        }

        .badge {
            display: inline-flex;
            align-items: center;
            padding: 4px 12px;
            border-radius: 999px;
            font-size: 12px;
            font-weight: 500;
            background: rgba(45, 225, 194, 0.1);
            color: var(--brand);
            border: 1px solid rgba(45, 225, 194, 0.2);
            width: fit-content;
        }

        .related-card {
            display: flex;
            flex-direction: column;
            background: rgba(13, 22, 40, 0.72);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 16px;
            overflow: hidden;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }

        .related-card:hover {
            border-color: rgba(255, 255, 255, 0.2);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .related-card img {
            width: 100%;
            aspect-ratio: 16/9;
            object-fit: cover;
            background: rgba(15, 23, 42, 0.6);
        }

        .related-card h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text);
            line-height: 1.45;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
            margin: 6px 0;
        }

        .related-card .date {
            font-size: 13px;
            color: var(--muted);
            display: flex;
            align-items: center;
            gap: 6px;
        }

        .cta-panel {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
            padding: 32px;
            border-radius: 24px;
            background: rgba(13, 22, 40, 0.72);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            box-shadow: var(--shadow-card);
        }

        .cta-text h2 {
            font-size: 1.5rem;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 6px;
        }

        .cta-text p {
            color: var(--muted);
            font-size: 14px;
        }

        .section-spacing {
            padding: 64px 0;
        }

        .glass-card {
            background: rgba(13, 22, 40, 0.72);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border: 1px solid rgba(255, 255, 255, 0.08);
            border-radius: 16px;
            transition: var(--transition);
            box-shadow: var(--shadow-card);
        }

        .glass-card:hover {
            border-color: rgba(255, 255, 255, 0.2);
            box-shadow: var(--shadow-hover);
            transform: translateY(-4px);
        }

        .bg-grid {
            background-image: linear-gradient(rgba(45, 225, 194, 0.04) 1px, transparent 1px),
                linear-gradient(90deg, rgba(45, 225, 194, 0.04) 1px, transparent 1px);
            background-size: 40px 40px;
        }

        .h2-deco {
            display: flex;
            align-items: center;
            gap: 12px;
            margin-bottom: 28px;
        }

        .h2-deco::before {
            content: '';
            width: 40px;
            height: 3px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--brand), transparent);
            flex-shrink: 0;
        }

        .site-footer {
            background: #060B15;
            border-top: 1px solid rgba(45, 225, 194, 0.12);
            padding-top: 60px;
            padding-bottom: 24px;
            margin-top: 60px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 40px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.06);
        }

        .footer-brand p {
            margin-top: 16px;
            font-size: 14px;
            color: var(--muted);
            line-height: 1.7;
            max-width: 320px;
        }

        .footer-social {
            display: flex;
            gap: 12px;
            margin-top: 20px;
        }

        .footer-social a {
            width: 36px;
            height: 36px;
            border-radius: 10px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--muted);
        }

        .footer-social a:hover {
            color: var(--brand);
            border-color: rgba(45, 225, 194, 0.3);
        }

        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text);
            margin-bottom: 20px;
        }

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

        .footer-links a {
            font-size: 14px;
            color: var(--muted);
            display: inline-flex;
            align-items: center;
            gap: 8px;
            transition: var(--transition);
        }

        .footer-links a i {
            font-size: 10px;
            color: rgba(45, 225, 194, 0.4);
        }

        .footer-links a:hover {
            color: var(--brand);
            padding-left: 4px;
        }

        .footer-contact {
            display: flex;
            flex-direction: column;
            gap: 14px;
        }

        .footer-contact-item {
            display: flex;
            align-items: center;
            gap: 12px;
            font-size: 14px;
            color: var(--muted);
        }

        .footer-contact-item i {
            color: var(--brand);
            font-size: 14px;
            width: 16px;
            text-align: center;
        }

        .footer-bottom {
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding-top: 24px;
            font-size: 13px;
            color: var(--muted);
        }

        @media (max-width: 1024px) {
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            body {
                padding-top: 56px;
            }

            .header-top {
                height: 56px;
            }

            .nav-trigger {
                display: flex;
            }

            .channel-nav {
                display: none;
            }

            .header-search span {
                display: none;
            }

            .header-search {
                padding: 8px 10px;
            }

            .article-hero h1 {
                font-size: 1.6rem;
            }

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

            .breadcrumb .current {
                max-width: 160px;
            }

            .cta-panel {
                flex-direction: column;
                text-align: center;
                padding: 24px;
            }

            .section-spacing {
                padding: 48px 0;
            }

            .footer-bottom {
                flex-direction: column;
                gap: 8px;
                text-align: center;
            }
        }

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

            .footer-brand p {
                max-width: 100%;
            }

            .header-actions {
                gap: 8px;
            }

            .btn-outline {
                padding: 8px 14px;
                font-size: 13px;
            }
        }

/* roulang page: category2 */
:root {
      --bg-base: #080D18;
      --bg-panel: rgba(13, 22, 40, 0.72);
      --bg-elevated: rgba(21, 32, 55, 0.85);
      --brand: #2DE1C2;
      --brand-blue: #3E7BFA;
      --text-main: #F0F6FF;
      --text-body: #A7B4CC;
      --text-muted: #6E7B99;
      --border-white: rgba(255, 255, 255, 0.08);
      --radius-lg: 16px;
      --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.28);
    }

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

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: var(--bg-base);
      color: var(--text-main);
      line-height: 1.6;
      -webkit-font-smoothing: antialiased;
    }

    a { color: inherit; text-decoration: none; }
    img { display: block; max-width: 100%; }
    button, input, select, textarea { font-family: inherit; }

    .container {
      max-width: 1240px;
      margin: 0 auto;
      padding: 0 clamp(16px, 4vw, 32px);
    }

    .section { padding: clamp(64px, 10vw, 120px) 0; }
    .section-glass { background: rgba(15, 23, 42, 0.35); }

    .bg-grid {
      background-color: var(--bg-base);
      background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
      background-size: 48px 48px;
    }

    .section-head { margin-bottom: 48px; max-width: 720px; }
    .section-head p { margin-top: 16px; color: var(--text-body); font-size: 1rem; line-height: 1.75; }

    .h2-deco {
      position: relative;
      padding-top: 24px;
      font-size: clamp(1.75rem, 3vw, 2.5rem);
      font-weight: 600;
      color: var(--text-main);
      line-height: 1.3;
    }
    .h2-deco::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 40px;
      height: 3px;
      background: linear-gradient(90deg, #2DE1C2, #3E7BFA);
      border-radius: 3px;
    }

    .badge {
      display: inline-block;
      padding: 4px 14px;
      border-radius: 999px;
      background: rgba(45, 225, 194, 0.1);
      color: #2DE1C2;
      border: 1px solid rgba(45, 225, 194, 0.2);
      font-size: 0.75rem;
      font-weight: 500;
      white-space: nowrap;
    }

    .btn-glow {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      padding: 14px 32px;
      border-radius: 999px;
      background: linear-gradient(135deg, #2DE1C2, #3E7BFA);
      color: #fff;
      font-weight: 600;
      font-size: 0.95rem;
      border: none;
      cursor: pointer;
      box-shadow: 0 0 24px rgba(45, 225, 194, 0.35), 0 4px 12px rgba(0, 0, 0, 0.4);
      transition: all .3s;
    }
    .btn-glow:hover { filter: brightness(1.08); box-shadow: 0 0 32px rgba(45, 225, 194, 0.55), 0 4px 16px rgba(0, 0, 0, 0.5); transform: translateY(-1px); }
    .btn-glow:active { transform: translateY(1px); box-shadow: 0 0 14px rgba(45, 225, 194, 0.25); }

    .btn-ghost {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 14px 32px;
      border-radius: 999px;
      background: rgba(255, 255, 255, 0.05);
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: #F0F6FF;
      font-weight: 500;
      transition: all .3s;
    }
    .btn-ghost:hover { background: rgba(255, 255, 255, 0.1); border-color: rgba(255, 255, 255, 0.3); }

    .btn-outline {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 8px 18px;
      border-radius: 999px;
      border: 1px solid rgba(45, 225, 194, 0.4);
      color: #2DE1C2;
      font-size: 0.875rem;
      transition: all .3s;
    }
    .btn-outline:hover { background: rgba(45, 225, 194, 0.1); box-shadow: 0 0 12px rgba(45, 225, 194, 0.2); }

    .glass-card {
      background: var(--bg-panel);
      backdrop-filter: blur(14px);
      border: 1px solid var(--border-white);
      border-radius: 16px;
      box-shadow: var(--shadow-card);
      transition: all .3s cubic-bezier(.4, 0, .2, 1);
    }
    .glass-card:hover {
      border-color: rgba(255, 255, 255, 0.2);
      box-shadow: 0 8px 40px rgba(45, 225, 194, 0.12), 0 4px 16px rgba(0, 0, 0, 0.4);
      transform: translateY(-4px);
    }

    /* ===== Header & Nav ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 50;
      background: rgba(8, 13, 24, 0.85);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      transition: background .3s, box-shadow .3s;
    }
    .site-header.scrolled { background: rgba(5, 8, 16, 0.95); box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3); }

    .header-top {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 64px;
    }

    .logo { display: flex; align-items: center; gap: 10px; }
    .logo-mark {
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: linear-gradient(135deg, #2DE1C2, #3E7BFA);
      display: flex;
      align-items: center;
      justify-content: center;
      font-weight: 700;
      font-size: 1.1rem;
      color: #fff;
      box-shadow: 0 0 16px rgba(45, 225, 194, 0.4);
    }
    .logo-text { font-size: 1.1rem; font-weight: 700; color: #fff; letter-spacing: .01em; }
    .logo-text span { color: #A7B4CC; font-weight: 400; }

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

    .hamburger {
      display: none;
      width: 40px;
      height: 40px;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      background: rgba(255, 255, 255, 0.05);
      border-radius: 8px;
      border: 1px solid rgba(255, 255, 255, 0.1);
      cursor: pointer;
    }
    .hamburger span { display: block; height: 2px; width: 20px; margin: 0 auto; background: #E2E8F0; border-radius: 2px; transition: .3s; }
    .hamburger:hover { border-color: rgba(45, 225, 194, 0.4); }
    .hamburger:hover span { background: #2DE1C2; }

    .channel-nav {
      display: flex;
      align-items: center;
      gap: 4px;
      height: 48px;
      overflow-x: auto;
      scrollbar-width: none;
      -ms-overflow-style: none;
    }
    .channel-nav::-webkit-scrollbar { display: none; }

    .channel-link {
      position: relative;
      padding: 6px 16px;
      border-radius: 999px;
      color: #A7B4CC;
      font-size: 0.875rem;
      white-space: nowrap;
      border: 1px solid transparent;
      transition: all .3s;
    }
    .channel-link:hover { color: #F0F6FF; background: rgba(255, 255, 255, 0.05); }
    .channel-link.active {
      background: rgba(45, 225, 194, 0.12);
      color: #2DE1C2;
      border-color: rgba(45, 225, 194, 0.35);
      box-shadow: 0 0 12px rgba(45, 225, 194, 0.1);
    }

    /* ===== Hero ===== */
    .hero-banner {
      position: relative;
      padding: clamp(72px, 10vw, 110px) 0 90px;
      background: url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .hero-banner::before {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse at 20% 50%, rgba(45, 225, 194, 0.12), transparent 45%),
        linear-gradient(90deg, rgba(8, 13, 24, 0.88), rgba(8, 13, 24, 0.55), rgba(8, 13, 24, 0.3));
    }
    .hero-banner::after {
      content: '';
      position: absolute;
      inset: 0;
      background-image: linear-gradient(rgba(255, 255, 255, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.03) 1px, transparent 1px);
      background-size: 48px 48px;
      pointer-events: none;
    }
    .hero-inner { position: relative; z-index: 1; }
    .hero-content { max-width: 680px; animation: fadeInUp .6s ease both; }

    .hero-badge {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 6px 16px;
      border-radius: 999px;
      background: rgba(45, 225, 194, 0.1);
      border: 1px solid rgba(45, 225, 194, 0.25);
      color: #2DE1C2;
      font-size: 0.8rem;
      font-weight: 500;
      margin-bottom: 24px;
    }
    .hero-badge i { font-size: 0.75rem; }

    .hero-content h1 {
      font-size: clamp(2.4rem, 5vw, 3.5rem);
      font-weight: 700;
      color: #F0F6FF;
      line-height: 1.15;
      letter-spacing: -0.02em;
      margin-bottom: 20px;
    }
    .hero-sub {
      font-size: clamp(1rem, 1.5vw, 1.2rem);
      color: #A7B4CC;
      line-height: 1.75;
      max-width: 560px;
      margin-bottom: 36px;
    }
    .hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 48px; }

    .hero-metrics { display: flex; gap: clamp(24px, 5vw, 56px); flex-wrap: wrap; }
    .hero-metrics strong { display: block; font-size: clamp(1.6rem, 3vw, 2.2rem); font-weight: 700; color: #2DE1C2; line-height: 1.2; }
    .hero-metrics span { font-size: 0.85rem; color: #6E7B99; margin-top: 4px; display: block; }

    @keyframes fadeInUp {
      from { opacity: 0; transform: translateY(24px); }
      to { opacity: 1; transform: none; }
    }

    /* ===== Cards ===== */
    .card-feature {
      background: var(--bg-panel);
      backdrop-filter: blur(14px);
      border: 1px solid var(--border-white);
      border-radius: 16px;
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: all .3s cubic-bezier(.4, 0, .2, 1);
      display: flex;
      flex-direction: column;
    }
    .card-feature:hover {
      border-color: rgba(255, 255, 255, 0.2);
      box-shadow: 0 8px 40px rgba(45, 225, 194, 0.12), 0 4px 16px rgba(0, 0, 0, 0.4);
      transform: translateY(-4px);
    }
    .card-thumb { aspect-ratio: 16 / 9; background: #0F172A; overflow: hidden; }
    .card-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .5s; }
    .card-feature:hover .card-thumb img { transform: scale(1.05); }
    .card-body { padding: 24px; display: flex; flex-direction: column; flex: 1; gap: 12px; }
    .card-body h3 { font-size: 1.25rem; font-weight: 600; color: var(--text-main); line-height: 1.4; }
    .card-body p { color: var(--text-body); font-size: 0.95rem; line-height: 1.75; flex: 1; }

    .link-more { color: #2DE1C2; font-size: 0.875rem; display: inline-flex; align-items: center; gap: 6px; transition: gap .3s; }
    .link-more:hover { gap: 10px; text-decoration: underline; }

    /* ===== Steps ===== */
    .step-card {
      background: rgba(13, 22, 40, 0.72);
      backdrop-filter: blur(14px);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 16px;
      padding: 28px 24px;
      transition: all .3s;
      position: relative;
    }
    .step-card:hover {
      transform: translateY(-4px);
      border-color: rgba(45, 225, 194, 0.25);
      box-shadow: 0 8px 30px rgba(45, 225, 194, 0.08);
    }
    .step-num {
      display: inline-flex;
      width: 44px;
      height: 44px;
      border-radius: 999px;
      border: 1px solid rgba(45, 225, 194, 0.5);
      color: #2DE1C2;
      font-size: 0.875rem;
      font-weight: 600;
      align-items: center;
      justify-content: center;
      margin-bottom: 16px;
    }
    .step-card h3 { font-size: 1.1rem; font-weight: 600; color: #F0F6FF; margin-bottom: 10px; }
    .step-card p { color: #A7B4CC; font-size: 0.9rem; line-height: 1.65; }

    /* ===== Scenario ===== */
    .scenario-row {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
      margin-bottom: 64px;
    }
    .scenario-row:last-child { margin-bottom: 0; }
    .scenario-row.reverse .scenario-media { order: 2; }
    .scenario-row.reverse .scenario-content { order: 1; }
    .scenario-media {
      border-radius: 16px;
      overflow: hidden;
      border: 1px solid rgba(255, 255, 255, 0.08);
      box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
      aspect-ratio: 4 / 3;
      background: #0F172A;
    }
    .scenario-media img { width: 100%; height: 100%; object-fit: cover; }
    .scenario-content h3 { font-size: 1.4rem; font-weight: 600; color: #F0F6FF; margin: 14px 0 12px; }
    .scenario-content > p { color: #A7B4CC; line-height: 1.75; margin-bottom: 16px; }

    .check-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 10px; }
    .check-list li { display: flex; align-items: flex-start; gap: 10px; color: #A7B4CC; font-size: 0.9rem; }
    .check-list i { color: #2DE1C2; margin-top: 2px; }

    /* ===== List Solutions ===== */
    .list-solutions { display: flex; flex-direction: column; gap: 16px; }
    .list-item {
      display: flex;
      align-items: center;
      gap: 20px;
      background: rgba(13, 22, 40, 0.55);
      border: 1px solid rgba(255, 255, 255, 0.06);
      border-radius: 16px;
      padding: 16px;
      transition: all .3s;
    }
    .list-item:hover {
      background: rgba(21, 32, 55, 0.85);
      border-color: rgba(45, 225, 194, 0.25);
      transform: translateX(4px);
    }
    .list-item img {
      width: 180px;
      height: 110px;
      object-fit: cover;
      border-radius: 12px;
      background: #0F172A;
      flex-shrink: 0;
    }
    .list-body { flex: 1; min-width: 0; }
    .list-body h3 { font-size: 1.05rem; font-weight: 600; color: #F0F6FF; margin: 6px 0 6px; }
    .list-body p {
      color: #A7B4CC;
      font-size: 0.9rem;
      line-height: 1.65;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }
    .list-body time { display: inline-block; margin-top: 8px; color: #6E7B99; font-size: 0.8rem; }

    /* ===== FAQ ===== */
    .faq-list { max-width: 820px; margin: 0 auto; display: grid; gap: 14px; }
    .faq-item {
      background: rgba(13, 22, 40, 0.72);
      backdrop-filter: blur(14px);
      border: 1px solid rgba(255, 255, 255, 0.08);
      border-radius: 14px;
      padding: 20px 24px;
      transition: all .3s;
    }
    .faq-item[open] { border-color: rgba(45, 225, 194, 0.3); box-shadow: 0 0 20px rgba(45, 225, 194, 0.05); }
    .faq-item summary {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      cursor: pointer;
      color: #F0F6FF;
      font-weight: 500;
      font-size: 0.95rem;
      list-style: none;
    }
    .faq-item summary::-webkit-details-marker { display: none; }
    .faq-item summary i { color: #2DE1C2; font-size: 0.85rem; transition: transform .3s; flex-shrink: 0; }
    .faq-item[open] summary i { transform: rotate(45deg); }
    .faq-item p { margin-top: 14px; color: #A7B4CC; font-size: 0.9rem; line-height: 1.7; }

    /* ===== CTA ===== */
    .cta-section {
      background: url('/assets/images/backpic/back-2.webp') center/cover fixed;
      position: relative;
    }
    .cta-section::before {
      content: '';
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(8, 13, 24, 0.9), rgba(8, 13, 24, 0.96));
    }
    .cta-panel {
      position: relative;
      z-index: 1;
      display: grid;
      grid-template-columns: 1.2fr 0.8fr;
      gap: 48px;
      background: rgba(255, 255, 255, 0.03);
      backdrop-filter: blur(20px);
      border: 1px solid rgba(255, 255, 255, 0.1);
      border-radius: 24px;
      padding: clamp(24px, 5vw, 48px);
    }
    .cta-form h2 { font-size: 1.6rem; font-weight: 600; color: #F0F6FF; margin-bottom: 8px; }
    .cta-form > p { color: #A7B4CC; margin-bottom: 24px; font-size: 0.9rem; }
    .form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
    .form-field { margin-bottom: 16px; }
    .cta-form label { display: block; font-size: 0.875rem; color: #A7B4CC; margin-bottom: 6px; }
    .cta-form input,
    .cta-form select,
    .cta-form textarea {
      width: 100%;
      padding: 12px 16px;
      background: rgba(255, 255, 255, 0.04);
      border: 1px solid rgba(255, 255, 255, 0.12);
      border-radius: 10px;
      color: #F0F6FF;
      font-size: 0.9rem;
      outline: none;
      transition: all .3s;
    }
    .cta-form input:focus,
    .cta-form select:focus,
    .cta-form textarea:focus {
      border-color: #2DE1C2;
      box-shadow: 0 0 0 3px rgba(45, 225, 194, 0.15);
      background: rgba(255, 255, 255, 0.06);
    }
    .cta-form input::placeholder,
    .cta-form textarea::placeholder { color: #475569; }
    .cta-form select option { background: #121D33; color: #F0F6FF; }
    .cta-form textarea { min-height: 110px; resize: vertical; }
    .req { color: #F87171; margin-left: 4px; }
    .cta-form .btn-glow { width: 100%; margin-top: 8px; }

    .cta-info {
      background: rgba(45, 225, 194, 0.05);
      border: 1px solid rgba(45, 225, 194, 0.15);
      border-radius: 16px;
      padding: 28px;
    }
    .cta-info h3 { font-size: 1.1rem; color: #F0F6FF; margin-bottom: 16px; }
    .cta-contact {
      display: flex;
      align-items: center;
      gap: 14px;
      margin-top: 24px;
      padding-top: 20px;
      border-top: 1px solid rgba(255, 255, 255, 0.08);
    }
    .cta-contact i { font-size: 1.4rem; color: #2DE1C2; }
    .cta-contact strong { display: block; color: #F0F6FF; font-size: 1.1rem; }
    .cta-contact span { color: #6E7B99; font-size: 0.8rem; }

    /* ===== Footer ===== */
    .site-footer { background: #060B15; border-top: 1px solid rgba(45, 225, 194, 0.15); padding: 64px 0 0; }
    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1fr;
      gap: 48px;
      padding-bottom: 48px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
    }
    .footer-brand p { color: #6E7B99; font-size: 0.875rem; line-height: 1.75; margin: 16px 0 20px; max-width: 320px; }
    .footer-social { display: flex; gap: 12px; }
    .footer-social a {
      width: 36px; height: 36px; border-radius: 10px;
      border: 1px solid rgba(255, 255, 255, 0.1);
      display: flex; align-items: center; justify-content: center;
      color: #A7B4CC; transition: all .3s;
    }
    .footer-social a:hover { color: #2DE1C2; border-color: rgba(45, 225, 194, 0.4); background: rgba(45, 225, 194, 0.08); }
    .footer-col h4 { color: #F0F6FF; font-size: 0.95rem; font-weight: 600; margin-bottom: 16px; }
    .footer-links { display: grid; gap: 10px; }
    .footer-links a { color: #6E7B99; font-size: 0.875rem; display: inline-flex; align-items: center; gap: 6px; transition: all .3s; }
    .footer-links a:hover { color: #2DE1C2; padding-left: 4px; }
    .footer-links i { font-size: 0.7rem; color: rgba(45, 225, 194, 0.5); }
    .footer-contact { display: grid; gap: 14px; }
    .footer-contact-item { display: flex; align-items: center; gap: 12px; color: #6E7B99; font-size: 0.875rem; }
    .footer-contact-item i { color: #2DE1C2; width: 16px; text-align: center; }
    .footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; padding: 20px 0; color: #475569; font-size: 0.8rem; }

    /* ===== Responsive ===== */
    @media (max-width: 1024px) {
      .scenario-row { gap: 28px; }
      .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
    }

    @media (max-width: 768px) {
      .header-top { height: 60px; }
      .hamburger { display: flex; }
      .channel-nav {
        position: fixed;
        top: 0;
        right: -300px;
        width: 280px;
        height: 100vh;
        flex-direction: column;
        align-items: stretch;
        padding: 80px 24px 24px;
        background: rgba(5, 8, 16, 0.98);
        border-left: 1px solid rgba(255, 255, 255, 0.08);
        transition: right .3s ease;
        z-index: 100;
        overflow-y: auto;
      }
      .channel-nav.nav-open { right: 0; }
      .channel-link { padding: 12px 16px; font-size: 0.95rem; }
      .channel-link.active { background: rgba(45, 225, 194, 0.12); }

      .scenario-row,
      .scenario-row.reverse { grid-template-columns: 1fr; }
      .scenario-row.reverse .scenario-media { order: 0; }

      .cta-panel { grid-template-columns: 1fr; }
      .form-row { grid-template-columns: 1fr; }
      .hero-actions .btn-glow,
      .hero-actions .btn-ghost { width: 100%; }

      .list-item { flex-direction: column; align-items: flex-start; }
      .list-item img { width: 100%; height: 180px; }

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

    @media (max-width: 520px) {
      .footer-grid { grid-template-columns: 1fr; }
      .hero-banner { padding: 56px 0 64px; }
      .hero-metrics { gap: 20px; }
    }

/* roulang page: category3 */
:root {
      --bg-base: #080D18;
      --bg-panel: rgba(13, 22, 40, 0.72);
      --bg-elevated: rgba(21, 32, 55, 0.85);
      --bg-footer: #060B15;
      --brand: #2DE1C2;
      --blue: #3E7BFA;
      --text-main: #F0F6FF;
      --text-body: #A7B4CC;
      --text-muted: #6E7B99;
      --border-glass: rgba(255,255,255,0.08);
      --border-glass-hover: rgba(255,255,255,0.2);
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-card: 0 4px 24px rgba(0,0,0,0.28);
      --shadow-hover: 0 8px 40px rgba(45,225,194,0.12), 0 4px 16px rgba(0,0,0,0.4);
      --shadow-glow: 0 0 24px rgba(45,225,194,0.35), 0 4px 12px rgba(0,0,0,0.4);
      --transition-base: all .3s cubic-bezier(.4,0,.2,1);
      --header-height: 112px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
      background: var(--bg-base);
      color: var(--text-body);
      line-height: 1.75;
      overflow-x: hidden;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: color .3s ease;
    }

    button {
      font-family: inherit;
      border: none;
      background: none;
      cursor: pointer;
    }

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

    ul,
    ol {
      list-style: none;
    }

    .container {
      max-width: 1240px;
      margin: 0 auto;
      padding-left: clamp(16px, 4vw, 32px);
      padding-right: clamp(16px, 4vw, 32px);
    }

    /* ---------- Header ---------- */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(8, 13, 24, 0.85);
      -webkit-backdrop-filter: blur(20px);
      backdrop-filter: blur(20px);
      border-bottom: 1px solid rgba(255, 255, 255, 0.06);
      transition: background .35s ease, box-shadow .35s ease;
    }

    .site-header.scrolled {
      background: rgba(5, 8, 16, 0.95);
      box-shadow: 0 4px 20px rgba(0, 0, 0, 0.35);
    }

    .header-top {
      height: 64px;
      border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    }

    .header-top-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
    }

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

    .logo-mark {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 36px;
      height: 36px;
      border-radius: 10px;
      background: linear-gradient(135deg, var(--brand), var(--blue));
      color: #fff;
      font-size: 19px;
      font-weight: 800;
      box-shadow: 0 0 18px rgba(45, 225, 194, 0.35);
    }

    .logo-text {
      font-size: 20px;
      font-weight: 700;
      color: #fff;
      letter-spacing: 0.5px;
      white-space: nowrap;
    }

    .logo-text span {
      color: var(--brand);
    }

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

    .header-search {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      color: var(--text-body);
      font-size: 14px;
      padding: 8px 14px;
      border: 1px solid var(--border-glass);
      border-radius: 999px;
      transition: var(--transition-base);
    }

    .header-search:hover {
      border-color: rgba(45, 225, 194, 0.4);
      color: var(--brand);
    }

    .search-text {
      font-size: 13px;
    }

    .nav-toggle {
      display: none;
      width: 40px;
      height: 40px;
      border-radius: 10px;
      border: 1px solid var(--border-glass);
      color: var(--text-main);
      font-size: 18px;
      align-items: center;
      justify-content: center;
      transition: var(--transition-base);
    }

    .nav-toggle:hover {
      border-color: rgba(45, 225, 194, 0.4);
      color: var(--brand);
    }

    .header-nav {
      height: 48px;
      display: flex;
      align-items: center;
    }

    .channel-nav {
      display: flex;
      align-items: center;
      gap: 12px;
      overflow-x: auto;
      scrollbar-width: none;
      -ms-overflow-style: none;
    }

    .channel-nav::-webkit-scrollbar {
      display: none;
    }

    .channel-link {
      display: inline-flex;
      align-items: center;
      padding: 8px 20px;
      border-radius: 999px;
      font-size: 14px;
      font-weight: 500;
      color: var(--text-body);
      border: 1px solid transparent;
      white-space: nowrap;
      transition: var(--transition-base);
      position: relative;
    }

    .channel-link:hover {
      color: var(--text-main);
      background: rgba(255, 255, 255, 0.04);
      border-color: rgba(255, 255, 255, 0.08);
    }

    .channel-link.active {
      background: rgba(45, 225, 194, 0.12);
      color: var(--brand);
      border-color: rgba(45, 225, 194, 0.25);
      box-shadow: 0 0 16px rgba(45, 225, 194, 0.1);
      font-weight: 600;
    }

    /* ---------- Buttons ---------- */
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 14px;
      font-weight: 600;
      border-radius: 999px;
      padding: 12px 28px;
      transition: var(--transition-base);
      line-height: 1.2;
      white-space: nowrap;
      border: 1px solid transparent;
    }

    .btn:focus-visible,
    .channel-link:focus-visible,
    .faq-question:focus-visible,
    a:focus-visible {
      outline: 2px solid var(--brand);
      outline-offset: 3px;
    }

    .btn-glow {
      background: linear-gradient(135deg, var(--brand), var(--blue));
      color: #fff;
      box-shadow: var(--shadow-glow);
    }

    .btn-glow:hover {
      filter: brightness(1.08);
      box-shadow: 0 0 32px rgba(45, 225, 194, 0.55), 0 6px 16px rgba(0, 0, 0, 0.4);
    }

    .btn-glow:active {
      transform: translateY(1px) scale(0.98);
      box-shadow: 0 0 14px rgba(45, 225, 194, 0.25), 0 2px 8px rgba(0, 0, 0, 0.4);
    }

    .btn-outline {
      background: rgba(255, 255, 255, 0.05);
      border-color: rgba(255, 255, 255, 0.18);
      color: var(--text-main);
    }

    .btn-outline:hover {
      background: rgba(255, 255, 255, 0.1);
      border-color: rgba(45, 225, 194, 0.35);
      color: var(--brand);
    }

    .btn-ghost {
      background: rgba(255, 255, 255, 0.04);
      border-color: rgba(255, 255, 255, 0.1);
      color: var(--text-body);
    }

    .btn-ghost:hover {
      background: rgba(255, 255, 255, 0.08);
      color: var(--text-main);
    }

    .btn-sm {
      padding: 8px 18px;
      font-size: 13px;
    }

    .btn-lg {
      padding: 14px 36px;
      font-size: 15px;
    }

    /* ---------- Badges ---------- */
    .badge {
      display: inline-flex;
      align-items: center;
      gap: 4px;
      padding: 4px 12px;
      border-radius: 999px;
      font-size: 12px;
      font-weight: 500;
      line-height: 1.4;
    }

    .badge-brand {
      background: rgba(45, 225, 194, 0.1);
      color: var(--brand);
      border: 1px solid rgba(45, 225, 194, 0.2);
    }

    .badge-gray {
      background: rgba(255, 255, 255, 0.05);
      color: var(--text-muted);
      border: 1px solid rgba(255, 255, 255, 0.1);
    }

    /* ---------- Section ---------- */
    .section {
      padding: clamp(64px, 10vw, 120px) 0;
    }

    .section-tight {
      padding: clamp(48px, 8vw, 80px) 0;
    }

    .h2-deco {
      position: relative;
      padding-top: 24px;
      font-size: clamp(1.75rem, 3vw, 2.5rem);
      font-weight: 600;
      color: var(--text-main);
      line-height: 1.3;
      letter-spacing: -0.02em;
      margin-bottom: 16px;
    }

    .h2-deco::before {
      content: '';
      position: absolute;
      top: 0;
      left: 0;
      width: 40px;
      height: 3px;
      border-radius: 2px;
      background: var(--brand);
      box-shadow: 0 0 10px rgba(45, 225, 194, 0.5);
    }

    .section-desc {
      font-size: 15px;
      color: var(--text-body);
      max-width: 720px;
      margin-bottom: 40px;
      line-height: 1.75;
    }

    .section-head {
      margin-bottom: 40px;
    }

    /* ---------- Glass Card ---------- */
    .glass-card {
      background: var(--bg-panel);
      -webkit-backdrop-filter: blur(14px);
      backdrop-filter: blur(14px);
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
      transition: var(--transition-base);
    }

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

    /* ---------- Hero Cover ---------- */
    .cat-hero {
      position: relative;
      padding: clamp(80px, 12vw, 140px) 0;
      background: linear-gradient(135deg, rgba(8, 13, 24, 0.55), rgba(8, 13, 24, 0.85)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
    }

    .cat-hero::after {
      content: '';
      position: absolute;
      inset: 0;
      background: radial-gradient(ellipse at 0% 50%, rgba(62, 123, 250, 0.18), transparent 55%);
      pointer-events: none;
    }

    .cat-hero .container {
      position: relative;
      z-index: 2;
    }

    .cat-hero h1 {
      font-size: clamp(2.4rem, 5vw, 3.75rem);
      font-weight: 700;
      line-height: 1.2;
      color: var(--text-main);
      letter-spacing: -0.02em;
      margin-bottom: 20px;
    }

    .cat-hero .lead {
      font-size: clamp(0.95rem, 1.4vw, 1.1rem);
      color: rgba(240, 246, 255, 0.82);
      max-width: 640px;
      line-height: 1.8;
      margin-bottom: 32px;
    }

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

    /* ---------- Feature Cards ---------- */
    .feature-card {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      background: var(--bg-panel);
      border: 1px solid var(--border-glass);
      transition: var(--transition-base);
      height: 100%;
      display: flex;
      flex-direction: column;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      border-color: rgba(45, 225, 194, 0.3);
      box-shadow: var(--shadow-hover);
    }

    .feature-card .card-img {
      aspect-ratio: 16/9;
      overflow: hidden;
      background: rgba(30, 41, 59, 0.6);
      position: relative;
    }

    .feature-card .card-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .45s ease;
    }

    .feature-card:hover .card-img img {
      transform: scale(1.05);
    }

    .feature-card .card-body {
      padding: 24px;
      display: flex;
      flex-direction: column;
      gap: 12px;
      flex: 1;
    }

    .feature-card .card-meta {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 13px;
      color: var(--text-muted);
    }

    .feature-card h3 {
      font-size: 1.15rem;
      font-weight: 600;
      color: var(--text-main);
      line-height: 1.5;
    }

    .feature-card p {
      font-size: 0.9rem;
      color: var(--text-body);
      line-height: 1.7;
    }

    .feature-card .card-tag {
      margin-top: auto;
      display: flex;
      gap: 8px;
      flex-wrap: wrap;
    }

    /* ---------- List Cards ---------- */
    .list-card {
      display: flex;
      align-items: center;
      gap: 20px;
      padding: 20px 0;
      border-bottom: 1px solid rgba(255, 255, 255, 0.05);
      transition: var(--transition-base);
    }

    .list-card:last-child {
      border-bottom: none;
    }

    .list-card:hover {
      padding-left: 8px;
    }

    .list-thumb {
      width: 160px;
      flex-shrink: 0;
      border-radius: var(--radius-md);
      overflow: hidden;
      aspect-ratio: 16/9;
      background: rgba(30, 41, 59, 0.5);
    }

    .list-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
    }

    .list-body {
      flex: 1;
      min-width: 0;
    }

    .list-body h4 {
      font-size: 1rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 6px;
      line-height: 1.5;
      overflow: hidden;
      text-overflow: ellipsis;
      white-space: nowrap;
    }

    .list-body p {
      font-size: 0.88rem;
      color: var(--text-muted);
      line-height: 1.6;
      display: -webkit-box;
      -webkit-line-clamp: 2;
      -webkit-box-orient: vertical;
      overflow: hidden;
    }

    .list-meta {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-top: 8px;
      font-size: 12px;
      color: var(--text-muted);
    }

    /* ---------- Value Cards ---------- */
    .value-card {
      padding: 32px 28px;
      border-radius: var(--radius-lg);
      background: var(--bg-panel);
      border: 1px solid var(--border-glass);
      transition: var(--transition-base);
      height: 100%;
    }

    .value-card:hover {
      border-color: rgba(45, 225, 194, 0.22);
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
    }

    .value-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 52px;
      height: 52px;
      border-radius: 14px;
      background: rgba(45, 225, 194, 0.1);
      color: var(--brand);
      font-size: 20px;
      margin-bottom: 18px;
      border: 1px solid rgba(45, 225, 194, 0.15);
    }

    .value-card h3 {
      font-size: 1.05rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .value-card p {
      font-size: 0.88rem;
      color: var(--text-body);
      line-height: 1.7;
    }

    /* ---------- FAQ ---------- */
    .faq-list {
      display: flex;
      flex-direction: column;
      gap: 14px;
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      border: 1px solid var(--border-glass);
      border-radius: var(--radius-md);
      background: var(--bg-panel);
      transition: var(--transition-base);
      overflow: hidden;
    }

    .faq-item:hover {
      border-color: rgba(255, 255, 255, 0.14);
    }

    .faq-item.open {
      border-color: rgba(45, 225, 194, 0.3);
      box-shadow: 0 4px 20px rgba(45, 225, 194, 0.06);
    }

    .faq-question {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      width: 100%;
      padding: 18px 22px;
      text-align: left;
      color: var(--text-main);
      font-size: 15px;
      font-weight: 500;
      transition: var(--transition-base);
    }

    .faq-question:hover {
      color: var(--brand);
    }

    .faq-icon {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 26px;
      height: 26px;
      border-radius: 50%;
      border: 1px solid rgba(255, 255, 255, 0.15);
      color: var(--text-muted);
      font-size: 14px;
      flex-shrink: 0;
      transition: var(--transition-base);
    }

    .faq-item.open .faq-icon {
      transform: rotate(45deg);
      border-color: rgba(45, 225, 194, 0.4);
      color: var(--brand);
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height .35s ease;
    }

    .faq-answer-inner {
      padding: 0 22px 20px;
      color: var(--text-muted);
      font-size: 14px;
      line-height: 1.75;
    }

    .faq-item.open .faq-answer {
      max-height: 300px;
    }

    .faq-more {
      text-align: center;
      margin-top: 28px;
      font-size: 14px;
      color: var(--text-muted);
    }

    .faq-more a {
      color: var(--brand);
      margin-left: 4px;
    }

    .faq-more a:hover {
      text-decoration: underline;
    }

    /* ---------- CTA Panel ---------- */
    .cta-panel {
      position: relative;
      border-radius: 24px;
      padding: clamp(32px, 6vw, 64px);
      background: linear-gradient(135deg, rgba(13, 22, 40, 0.9), rgba(8, 13, 24, 0.95)), url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
      border: 1px solid rgba(255, 255, 255, 0.08);
      overflow: hidden;
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 24px;
    }

    .cta-panel::before {
      content: '';
      position: absolute;
      top: -50%;
      right: -20%;
      width: 260px;
      height: 260px;
      border-radius: 50%;
      background: rgba(45, 225, 194, 0.12);
      filter: blur(80px);
      pointer-events: none;
    }

    .cta-panel::after {
      content: '';
      position: absolute;
      bottom: -30%;
      left: 10%;
      width: 200px;
      height: 200px;
      border-radius: 50%;
      background: rgba(62, 123, 250, 0.1);
      filter: blur(70px);
      pointer-events: none;
    }

    .cta-panel .cta-content,
    .cta-panel .cta-action {
      position: relative;
      z-index: 2;
    }

    .cta-panel h2 {
      font-size: clamp(1.5rem, 2.5vw, 2rem);
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 10px;
      line-height: 1.4;
    }

    .cta-panel p {
      font-size: 14px;
      color: var(--text-body);
      max-width: 460px;
    }

    /* ---------- BG Grid ---------- */
    .bg-grid {
      background-image:
        linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
      background-size: 40px 40px;
    }

    /* ---------- Footer ---------- */
    .site-footer {
      background: var(--bg-footer);
      border-top: 1px solid rgba(45, 225, 194, 0.08);
      padding: 64px 0 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      padding-bottom: 48px;
    }

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

    .footer-brand p {
      font-size: 0.88rem;
      color: var(--text-muted);
      max-width: 320px;
      line-height: 1.75;
      margin-bottom: 20px;
    }

    .footer-social {
      display: flex;
      gap: 12px;
    }

    .footer-social a {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 38px;
      height: 38px;
      border-radius: 10px;
      border: 1px solid rgba(255, 255, 255, 0.08);
      color: var(--text-muted);
      font-size: 15px;
      transition: var(--transition-base);
    }

    .footer-social a:hover {
      border-color: rgba(45, 225, 194, 0.3);
      color: var(--brand);
      transform: translateY(-2px);
    }

    .footer-col h4 {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 18px;
      position: relative;
      padding-bottom: 8px;
    }

    .footer-col h4::after {
      content: '';
      position: absolute;
      left: 0;
      bottom: 0;
      width: 22px;
      height: 2px;
      background: var(--brand);
      border-radius: 2px;
    }

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

    .footer-links a {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 14px;
      color: var(--text-muted);
      transition: var(--transition-base);
    }

    .footer-links a i {
      font-size: 10px;
      color: var(--brand);
      opacity: 0.6;
    }

    .footer-links a:hover {
      color: var(--brand);
      padding-left: 4px;
    }

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

    .footer-contact-item {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 14px;
      color: var(--text-muted);
    }

    .footer-contact-item i {
      color: var(--brand);
      width: 16px;
      text-align: center;
    }

    .footer-bottom {
      padding: 20px 0;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      display: flex;
      align-items: center;
      justify-content: space-between;
      flex-wrap: wrap;
      gap: 8px;
      font-size: 13px;
      color: rgba(110, 123, 153, 0.7);
    }

    /* ---------- Mobile Nav Overlay ---------- */
    .nav-overlay {
      position: fixed;
      inset: 0;
      background: rgba(0, 0, 0, 0.5);
      z-index: 199;
      opacity: 0;
      visibility: hidden;
      transition: opacity .3s ease, visibility .3s ease;
    }

    .nav-overlay.open {
      opacity: 1;
      visibility: visible;
    }

    /* ---------- Responsive ---------- */
    @media (max-width: 1024px) {
      .footer-grid {
        grid-template-columns: 1fr 1fr;
      }
    }

    @media (max-width: 767px) {
      .header-nav {
        position: fixed;
        top: 0;
        right: -100%;
        width: 300px;
        height: 100vh;
        background: rgba(8, 13, 24, 0.98);
        border-left: 1px solid rgba(255, 255, 255, 0.08);
        z-index: 300;
        transition: right .35s ease;
        padding: 80px 20px 20px;
        display: block;
      }

      .header-nav.open {
        right: 0;
      }

      .channel-nav {
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        overflow: visible;
      }

      .channel-link {
        padding: 14px 20px;
        border-radius: 12px;
        font-size: 15px;
      }

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

      .header-top-inner {
        padding-left: 16px;
        padding-right: 16px;
      }

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

      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }

      .cat-hero {
        background-attachment: scroll;
      }

      .list-card {
        flex-direction: column;
        align-items: flex-start;
        gap: 12px;
      }

      .list-thumb {
        width: 100%;
      }

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

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

    @media (max-width: 520px) {
      .header-actions .search-text {
        display: none;
      }

      .header-actions .btn-outline {
        padding: 8px 14px;
        font-size: 12px;
      }

      .feature-card .card-body {
        padding: 18px;
      }

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