/* roulang page: index */
:root{
  --bg-primary:#0A0E1A;
  --bg-secondary:#0D1322;
  --bg-tertiary:#0F172A;
  --glass-bg:rgba(255,255,255,0.04);
  --glass-bg-hover:rgba(255,255,255,0.06);
  --glass-border:rgba(255,255,255,0.08);
  --glass-highlight:rgba(255,255,255,0.15);
  --primary:#2E6BFF;
  --primary-dark:#1A3A8F;
  --accent:#22D3EE;
  --gradient-main:linear-gradient(135deg,#2E6BFF,#22D3EE);
  --success:#00E57A;
  --warning:#FF9F43;
  --error:#FF4D67;
  --info:#22D3EE;
  --text-primary:#E6EDF7;
  --text-body:#98A4BE;
  --text-muted:#5E6888;
  --text-link:#6DB4FF;
  --radius-lg:14px;
  --radius-md:10px;
  --radius-sm:8px;
  --shadow-primary:0 0 20px rgba(34,211,238,0.25),0 4px 12px rgba(46,107,255,0.3);
  --shadow-card:0 8px 32px rgba(46,107,255,0.15),0 0 0 1px rgba(34,211,238,0.15);
  --shadow-glow:0 0 30px rgba(34,211,238,0.4);
  --font-main:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  --container-w:1200px;
  --header-h:72px;
  --header-h-mb:56px;
  --section-pad:96px;
  --section-pad-mb:48px;
  --gutter:24px;
}
*,*::before,*::after{
  box-sizing:border-box;
  margin:0;
  padding:0;
}
html{
  scroll-behavior:smooth;
}
body{
  font-family:var(--font-main);
  background:var(--bg-primary);
  color:var(--text-body);
  line-height:1.7;
  font-size:15px;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{
  max-width:100%;
  display:block;
}
a{
  color:inherit;
  text-decoration:none;
}
ul,ol{
  list-style:none;
}
button,input,textarea{
  font-family:inherit;
  font-size:inherit;
  outline:none;
}
button{
  cursor:pointer;
  border:none;
  background:none;
}
input,textarea{
  border:none;
}
.sr-only{
  position:absolute;
  width:1px;height:1px;
  padding:0;margin:-1px;
  overflow:hidden;
  clip:rect(0,0,0,0);
  white-space:nowrap;
  border:0;
}
.container{
  max-width:var(--container-w);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{
  padding:var(--section-pad) 0;
}
.section-alt{
  background:var(--bg-secondary);
}
.section-dark{
  background:var(--bg-tertiary);
}
.section-header{
  max-width:780px;
  margin-bottom:56px;
}
.section-header.center{
  margin-left:auto;
  margin-right:auto;
  text-align:center;
}
.section-header.left{
  text-align:left;
}
.section-tag{
  display:inline-block;
  font-size:13px;
  font-weight:600;
  color:var(--accent);
  background:rgba(34,211,238,0.1);
  border:1px solid rgba(34,211,238,0.2);
  border-radius:100px;
  padding:4px 16px;
  margin-bottom:16px;
  letter-spacing:0.03em;
}
.section-title{
  font-size:32px;
  line-height:1.3;
  font-weight:700;
  color:var(--text-primary);
  position:relative;
  padding-left:22px;
  margin-bottom:16px;
}
.section-title::before{
  content:'';
  position:absolute;
  left:0;
  top:50%;
  transform:translateY(-50%);
  width:4px;
  height:28px;
  border-radius:4px;
  background:var(--gradient-main);
}
.section-title.center-title{
  padding-left:0;
}
.section-title.center-title::before{
  display:none;
}
.section-subtitle{
  font-size:15px;
  color:var(--text-muted);
  line-height:1.7;
}

/* top bar */
.top-bar{
  height:40px;
  background:linear-gradient(90deg,rgba(46,107,255,0.28),rgba(34,211,238,0.22));
  border-bottom:1px solid rgba(255,255,255,0.06);
  display:flex;
  align-items:center;
  justify-content:center;
  gap:12px;
  position:relative;
  z-index:1002;
  transition:height .3s,opacity .3s;
  overflow:hidden;
}
.top-bar.hidden{
  height:0;
  opacity:0;
  padding:0;
}
.top-badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:13px;
  color:var(--text-primary);
  font-weight:500;
}
.top-badge .dot{
  width:8px;
  height:8px;
  border-radius:50%;
  background:var(--success);
  box-shadow:0 0 8px rgba(0,229,122,0.6);
  display:inline-block;
}
.top-link{
  font-size:13px;
  color:var(--accent);
  font-weight:600;
  transition:color .2s;
}
.top-link:hover{
  color:#fff;
}
.top-close{
  position:absolute;
  right:16px;
  top:50%;
  transform:translateY(-50%);
  color:var(--text-muted);
  font-size:20px;
  line-height:1;
  padding:4px;
  border-radius:4px;
  transition:color .2s,background .2s;
}
.top-close:hover{
  color:#fff;
  background:rgba(255,255,255,0.08);
}

/* header */
.header{
  position:fixed;
  top:0;
  left:0;
  right:0;
  z-index:1000;
  transition:box-shadow .3s;
}
.header-main{
  height:var(--header-h);
  background:rgba(10,14,26,0.82);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  display:flex;
  align-items:center;
  border-bottom:1px solid rgba(255,255,255,0.06);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  width:100%;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
}
.logo-mark{
  display:flex;
  align-items:center;
  justify-content:center;
  width:34px;
  height:34px;
  border-radius:8px;
  background:var(--gradient-main);
  box-shadow:0 0 18px rgba(34,211,238,0.35);
}
.logo-mark svg{
  display:block;
}
.logo-text{
  font-size:20px;
  font-weight:800;
  color:var(--text-primary);
  letter-spacing:-0.01em;
  white-space:nowrap;
}
.logo-text span{
  color:var(--accent);
}
.nav{
  display:flex;
  align-items:center;
  gap:4px;
}
.nav-link{
  position:relative;
  font-size:15px;
  font-weight:500;
  color:var(--text-body);
  padding:10px 18px;
  border-radius:8px;
  transition:color .2s,background .2s;
  white-space:nowrap;
}
.nav-link:hover{
  color:var(--accent);
  background:rgba(255,255,255,0.04);
}
.nav-link.active{
  color:#fff;
  font-weight:600;
}
.nav-link.active::after{
  content:'';
  position:absolute;
  bottom:0;
  left:50%;
  transform:translateX(-50%);
  width:24px;
  height:2px;
  border-radius:2px;
  background:var(--gradient-main);
}
.header-right{
  display:flex;
  align-items:center;
  gap:14px;
  flex-shrink:0;
}
.status-badge{
  display:inline-flex;
  align-items:center;
  gap:7px;
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:100px;
  padding:5px 14px;
  font-size:13px;
  color:var(--text-primary);
  font-weight:500;
  white-space:nowrap;
}
.status-dot{
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--success);
  box-shadow:0 0 6px rgba(0,229,122,0.6);
}
.countdown{
  font-size:13px;
  color:var(--text-body);
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:100px;
  padding:5px 14px;
  font-feature-settings:"tnum";
  white-space:nowrap;
  font-variant-numeric:tabular-nums;
}
.countdown b{
  color:var(--accent);
  font-weight:600;
  margin:0 2px;
}
.nav-toggle{
  display:none;
  flex-direction:column;
  gap:5px;
  width:38px;
  height:38px;
  align-items:center;
  justify-content:center;
  border-radius:8px;
  border:1px solid rgba(255,255,255,0.1);
  background:rgba(255,255,255,0.04);
}
.nav-toggle span{
  display:block;
  width:18px;
  height:2px;
  background:var(--text-primary);
  border-radius:2px;
  transition:transform .3s,opacity .3s;
}
.nav-toggle.active span:nth-child(1){
  transform:translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2){
  opacity:0;
}
.nav-toggle.active span:nth-child(3){
  transform:translateY(-7px) rotate(-45deg);
}

/* buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:10px;
  padding:14px 28px;
  font-size:15px;
  font-weight:600;
  color:#fff;
  background:var(--gradient-main);
  box-shadow:var(--shadow-primary);
  transition:transform .2s,box-shadow .2s,opacity .2s;
  border:none;
  cursor:pointer;
  line-height:1.4;
}
.btn:hover{
  transform:translateY(-2px);
  box-shadow:0 0 40px rgba(34,211,238,0.4);
}
.btn:active{
  transform:translateY(0);
  box-shadow:0 0 20px rgba(34,211,238,0.25);
}
.btn-sm{
  padding:9px 20px;
  font-size:14px;
  border-radius:8px;
}
.btn-secondary{
  background:transparent;
  border:1px solid rgba(255,255,255,0.25);
  box-shadow:none !important;
  color:var(--text-primary);
}
.btn-secondary:hover{
  background:rgba(255,255,255,0.06);
  border-color:rgba(255,255,255,0.5);
  transform:translateY(-2px);
}
.btn-block{
  width:100%;
}
.btn-open-modal{
  cursor:pointer;
}

/* hero */
.hero{
  position:relative;
  min-height:calc(100vh - 72px);
  display:flex;
  align-items:center;
  padding:140px 0 100px;
  overflow:hidden;
}
.hero-bg{
  position:absolute;
  inset:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;
  background-position:center;
}
.hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(10,14,26,0.92),rgba(10,14,26,0.45));
}
.hero-grid{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.04) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.04) 1px,transparent 1px);
  background-size:44px 44px;
  mask-image:radial-gradient(ellipse at center,black 0%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse at center,black 0%,transparent 75%);
}
.hero-speedlines{
  position:absolute;
  top:0;
  right:-5%;
  width:55%;
  height:100%;
  background:repeating-linear-gradient(-45deg,transparent 0px,transparent 22px,rgba(255,255,255,0.025) 22px,rgba(255,255,255,0.025) 23px);
  pointer-events:none;
}
.hero-clip{
  position:absolute;
  bottom:0;
  right:0;
  width:320px;
  height:320px;
  background:linear-gradient(135deg,rgba(46,107,255,0.25),transparent);
  clip-path:polygon(100% 0,100% 100%,0 100%);
  pointer-events:none;
}
.hero-content{
  position:relative;
  z-index:2;
  max-width:700px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:600;
  color:var(--accent);
  background:rgba(34,211,238,0.1);
  border:1px solid rgba(34,211,238,0.25);
  border-radius:100px;
  padding:6px 18px;
  margin-bottom:28px;
  letter-spacing:0.02em;
}
.hero h1{
  font-size:44px;
  line-height:1.2;
  font-weight:800;
  color:var(--text-primary);
  margin-bottom:24px;
  max-width:640px;
}
.hero h1 .glow{
  color:var(--accent);
  text-shadow:0 0 18px rgba(34,211,238,0.5);
}
.hero-subtitle{
  font-size:18px;
  line-height:1.7;
  color:var(--text-body);
  margin-bottom:36px;
  max-width:560px;
}
.hero-ctas{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  margin-bottom:56px;
}
.hero-stats{
  display:flex;
  align-items:center;
  gap:0;
  border-top:1px solid rgba(255,255,255,0.08);
  padding-top:28px;
  flex-wrap:wrap;
}
.hero-stat{
  flex:0 0 auto;
  padding:0 24px;
  position:relative;
  text-align:center;
}
.hero-stat:first-child{
  padding-left:0;
}
.hero-stat:not(:last-child)::after{
  content:'';
  position:absolute;
  right:0;
  top:50%;
  transform:translateY(-50%);
  width:1px;
  height:36px;
  background:rgba(255,255,255,0.12);
}
.hero-stat .num{
  display:block;
  font-size:26px;
  font-weight:800;
  color:var(--text-primary);
  font-variant-numeric:tabular-nums;
  font-feature-settings:"tnum";
  background:var(--gradient-main);
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero-stat .label{
  display:block;
  font-size:12px;
  color:var(--text-muted);
  margin-top:4px;
}

/* pain points */
.pain-points{
  max-width:900px;
}
.pain-item{
  display:flex;
  align-items:center;
  gap:18px;
  padding:20px 0;
  border-bottom:1px solid rgba(255,255,255,0.06);
  transition:background .2s;
}
.pain-item:last-child{
  border-bottom:none;
}
.pain-item:hover{
  background:rgba(255,255,255,0.02);
  border-radius:10px;
  padding-left:12px;
}
.pain-icon{
  width:40px;
  height:40px;
  border-radius:10px;
  display:flex;
  align-items:center;
  justify-content:center;
  flex-shrink:0;
  background:rgba(46,107,255,0.12);
  border:1px solid rgba(46,107,255,0.2);
}
.pain-icon svg{
  width:20px;
  height:20px;
  stroke:var(--text-link);
}
.pain-text{
  font-size:15px;
  color:var(--text-body);
  line-height:1.5;
  font-weight:500;
}
.pain-text strong{
  color:var(--text-primary);
  font-weight:600;
}

/* tabs */
.tabs{
  display:flex;
  gap:40px;
  align-items:flex-start;
}
.tab-list{
  flex:0 0 260px;
  display:flex;
  flex-direction:column;
  gap:4px;
}
.tab-item{
  position:relative;
  padding:16px 20px;
  border-radius:12px;
  cursor:pointer;
  transition:background .25s,color .25s;
  border-left:3px solid transparent;
  display:flex;
  align-items:center;
  gap:14px;
}
.tab-item .tab-index{
  font-size:13px;
  font-weight:700;
  color:var(--text-muted);
  font-feature-settings:"tnum";
  font-variant-numeric:tabular-nums;
  transition:color .25s;
  min-width:20px;
}
.tab-item .tab-name{
  font-size:16px;
  font-weight:600;
  color:var(--text-muted);
  transition:color .25s;
}
.tab-item:hover{
  background:rgba(255,255,255,0.04);
}
.tab-item.active{
  background:rgba(255,255,255,0.05);
  border-left-color:var(--accent);
}
.tab-item.active .tab-name{
  color:var(--text-primary);
}
.tab-item.active .tab-index{
  color:var(--accent);
}
.tab-panels{
  flex:1;
  min-height:420px;
}
.tab-panel{
  display:none;
}
.tab-panel.active{
  display:block;
  animation:fadeIn .35s ease;
}
@keyframes fadeIn{
  from{opacity:0;transform:translateY(12px);}
  to{opacity:1;transform:translateY(0);}
}
.panel-card{
  position:relative;
  border-radius:16px;
  overflow:hidden;
  background:rgba(255,255,255,0.04);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,0.08);
}
.panel-card::before{
  content:'';
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.18),transparent);
  z-index:1;
}
.panel-card::after{
  content:'';
  position:absolute;
  top:0;
  left:15%;
  width:120px;
  height:70px;
  background:radial-gradient(ellipse,rgba(255,255,255,0.12),transparent 70%);
  pointer-events:none;
  z-index:1;
}
.panel-cover{
  height:220px;
  overflow:hidden;
  position:relative;
}
.panel-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .5s;
}
.panel-card:hover .panel-cover img{
  transform:scale(1.04);
}
.panel-cover::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 40%,rgba(10,14,26,0.6));
}
.panel-body{
  padding:36px;
  position:relative;
  z-index:2;
}
.panel-body h3{
  font-size:22px;
  font-weight:700;
  color:var(--text-primary);
  margin-bottom:14px;
}
.panel-body p{
  font-size:15px;
  color:var(--text-body);
  margin-bottom:22px;
  max-width:600px;
  line-height:1.75;
}
.feature-list{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:12px 24px;
  margin-bottom:24px;
}
.feature-list li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:var(--text-body);
  line-height:1.5;
}
.feature-list li::before{
  content:'';
  flex-shrink:0;
  width:7px;
  height:7px;
  border-radius:50%;
  background:var(--accent);
  margin-top:7px;
  box-shadow:0 0 8px rgba(34,211,238,0.5);
}
.panel-link{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--accent);
  transition:gap .2s;
}
.panel-link:hover{
  gap:10px;
}

/* stats */
.stats-section{
  position:relative;
  overflow:hidden;
}
.stats-section::before{
  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:60px 60px;
  mask-image:radial-gradient(ellipse at center,black 20%,transparent 75%);
  -webkit-mask-image:radial-gradient(ellipse at center,black 20%,transparent 75%);
  pointer-events:none;
}
.stats-grid{
  position:relative;
  z-index:1;
  display:grid;
  grid-template-columns:1.1fr 1fr;
  gap:24px;
  align-items:stretch;
}
.stat-big-card{
  position:relative;
  border-radius:16px;
  padding:48px 40px;
  background:linear-gradient(135deg,rgba(46,107,255,0.15),rgba(34,211,238,0.08));
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(255,255,255,0.1);
  min-height:280px;
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.stat-big-card::before{
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.2),transparent);
}
.stat-big-card .big-num{
  font-size:64px;
  font-weight:800;
  color:transparent;
  background:var(--gradient-main);
  -webkit-background-clip:text;
  background-clip:text;
  text-shadow:none;
  margin-bottom:8px;
  font-feature-settings:"tnum";
  font-variant-numeric:tabular-nums;
  filter:drop-shadow(0 0 25px rgba(34,211,238,0.35));
}
.stat-big-card .big-label{
  font-size:20px;
  font-weight:600;
  color:var(--text-primary);
  margin-bottom:12px;
}
.stat-big-card .big-desc{
  font-size:13px;
  color:var(--text-muted);
  line-height:1.6;
}
.stat-side{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.stat-row{
  flex:1;
  display:flex;
  align-items:center;
  gap:20px;
  padding:20px 24px;
  border-radius:12px;
  background:rgba(255,255,255,0.03);
  border:1px solid rgba(255,255,255,0.06);
  transition:border-color .2s,background .2s;
}
.stat-row:hover{
  background:rgba(255,255,255,0.05);
  border-color:rgba(34,211,238,0.2);
}
.stat-row .row-num{
  flex:0 0 110px;
  font-size:32px;
  font-weight:800;
  color:var(--text-primary);
  font-feature-settings:"tnum";
  font-variant-numeric:tabular-nums;
}
.stat-row .row-info{
  flex:1;
  min-width:0;
}
.stat-row .row-info .name{
  display:block;
  font-size:15px;
  font-weight:600;
  color:var(--text-primary);
  margin-bottom:2px;
}
.stat-row .row-info .desc{
  display:block;
  font-size:12px;
  color:var(--text-muted);
  line-height:1.4;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}

/* news */
.news-layout{
  display:grid;
  grid-template-columns:1.2fr 1fr;
  gap:32px;
  align-items:start;
}
.featured-card{
  position:relative;
  border-radius:16px;
  overflow:hidden;
  background:rgba(255,255,255,0.04);
  border:1px solid rgba(255,255,255,0.08);
  transition:box-shadow .3s,border-color .3s;
}
.featured-card:hover{
  box-shadow:var(--shadow-card);
  border-color:rgba(34,211,238,0.25);
}
.featured-cover{
  height:260px;
  overflow:hidden;
  position:relative;
}
.featured-cover img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.featured-cover::after{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(10,14,26,0.65));
}
.featured-body{
  padding:28px;
}
.featured-body .tag{
  display:inline-block;
  font-size:12px;
  font-weight:600;
  color:var(--text-link);
  background:rgba(46,107,255,0.15);
  border-radius:100px;
  padding:3px 14px;
  margin-bottom:12px;
}
.featured-body h3 a{
  font-size:20px;
  font-weight:700;
  color:var(--text-primary);
  line-height:1.4;
  transition:color .2s;
}
.featured-body h3 a:hover{
  color:var(--accent);
}
.featured-body .excerpt{
  font-size:14px;
  color:var(--text-body);
  margin-top:12px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.featured-body .meta{
  display:flex;
  align-items:center;
  justify-content:space-between;
  margin-top:18px;
}
.featured-body .meta .time{
  font-size:12px;
  color:var(--text-muted);
}
.featured-body .meta .more{
  font-size:13px;
  font-weight:600;
  color:var(--accent);
  transition:gap .2s;
  display:inline-flex;
  align-items:center;
  gap:4px;
}
.featured-body .meta .more:hover{
  gap:8px;
}
.post-list{
  display:flex;
  flex-direction:column;
  gap:4px;
}
.post-item{
  display:flex;
  align-items:center;
  gap:16px;
  padding:14px;
  border-radius:12px;
  transition:background .2s;
}
.post-item:hover{
  background:rgba(255,255,255,0.03);
}
.post-thumb{
  width:88px;
  height:68px;
  border-radius:8px;
  overflow:hidden;
  flex-shrink:0;
}
.post-thumb img{
  width:100%;
  height:100%;
  object-fit:cover;
}
.post-info{
  flex:1;
  min-width:0;
}
.post-info h4 a{
  display:block;
  font-size:15px;
  font-weight:600;
  color:var(--text-primary);
  line-height:1.4;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
  transition:color .2s;
}
.post-info h4 a:hover{
  color:var(--accent);
}
.post-meta{
  display:flex;
  align-items:center;
  gap:10px;
  margin-top:6px;
  font-size:12px;
  color:var(--text-muted);
}
.post-meta .cat{
  display:inline-block;
  background:rgba(46,107,255,0.12);
  color:var(--text-link);
  padding:1px 10px;
  border-radius:100px;
  font-weight:500;
}
.post-meta .time{
  font-feature-settings:"tnum";
}
.post-arrow{
  font-size:13px;
  color:var(--text-muted);
  transition:color .2s,transform .2s;
  flex-shrink:0;
}
.post-item:hover .post-arrow{
  color:var(--accent);
  transform:translateX(4px);
}
.empty-state{
  grid-column:1/-1;
  text-align:center;
  padding:60px 20px;
  background:rgba(255,255,255,0.02);
  border:1px dashed rgba(255,255,255,0.1);
  border-radius:16px;
  color:var(--text-muted);
}
.empty-state .empty-icon{
  width:52px;
  height:52px;
  border-radius:50%;
  background:rgba(34,211,238,0.08);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:24px;
  margin-bottom:16px;
}
.empty-state p{
  font-size:14px;
}

/* faq */
.faq-wrap{
  max-width:900px;
  margin:0 auto;
}
.faq-item{
  margin-bottom:14px;
  border-radius:12px;
  background:rgba(255,255,255,0.03);
  border:1px solid rgba(255,255,255,0.06);
  overflow:hidden;
  transition:border-color .3s,background .3s;
}
.faq-item.open{
  background:rgba(255,255,255,0.05);
  border-color:rgba(34,211,238,0.2);
}
.faq-question{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 24px;
  font-size:16px;
  font-weight:600;
  color:var(--text-primary);
  background:transparent;
  cursor:pointer;
  text-align:left;
  transition:color .2s;
}
.faq-question:hover{
  color:var(--accent);
}
.faq-icon{
  flex-shrink:0;
  width:24px;
  height:24px;
  border-radius:50%;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  color:var(--text-body);
  transition:transform .3s,color .3s,background .3s;
  background:rgba(255,255,255,0.06);
}
.faq-item.open .faq-icon{
  transform:rotate(45deg);
  color:var(--accent);
  background:rgba(34,211,238,0.1);
}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.faq-answer-inner{
  padding:0 24px 20px;
  border-left:3px solid var(--accent);
  margin-left:24px;
}
.faq-answer-inner p{
  font-size:14px;
  color:var(--text-body);
  line-height:1.75;
}

/* cta */
.cta-section{
  position:relative;
}
.cta-card{
  position:relative;
  border-radius:20px;
  padding:64px 48px;
  text-align:center;
  background:linear-gradient(135deg,rgba(46,107,255,0.12),rgba(34,211,238,0.06));
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid rgba(34,211,238,0.25);
  overflow:hidden;
}
.cta-card::before{
  content:'';
  position:absolute;
  inset:0;
  background:linear-gradient(120deg,rgba(46,107,255,0.2),rgba(34,211,238,0.1));
  z-index:-1;
}
.cta-card::after{
  content:'';
  position:absolute;
  top:0;left:0;right:0;
  height:2px;
  background:var(--gradient-main);
}
.cta-card h2{
  font-size:28px;
  font-weight:700;
  color:var(--text-primary);
  margin-bottom:14px;
}
.cta-card p{
  font-size:15px;
  color:var(--text-body);
  margin-bottom:32px;
  max-width:480px;
  margin-left:auto;
  margin-right:auto;
}

/* modal */
.modal-overlay{
  position:fixed;
  inset:0;
  background:rgba(0,0,0,0.6);
  backdrop-filter:blur(4px);
  -webkit-backdrop-filter:blur(4px);
  z-index:2000;
  display:none;
  align-items:center;
  justify-content:center;
  padding:20px;
}
.modal-overlay.show{
  display:flex;
}
.modal{
  width:100%;
  max-width:430px;
  border-radius:16px;
  background:rgba(20,28,48,0.95);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border:1px solid rgba(255,255,255,0.12);
  padding:36px 32px;
  position:relative;
  box-shadow:0 20px 60px rgba(0,0,0,0.5);
  animation:modalIn .3s ease;
}
@keyframes modalIn{
  from{opacity:0;transform:translateY(20px) scale(0.97);}
  to{opacity:1;transform:translateY(0) scale(1);}
}
.modal-close{
  position:absolute;
  top:14px;
  right:14px;
  width:32px;
  height:32px;
  border-radius:8px;
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:18px;
  color:var(--text-muted);
  transition:color .2s,background .2s;
}
.modal-close:hover{
  color:#fff;
  background:rgba(255,255,255,0.1);
}
.modal h3{
  font-size:22px;
  font-weight:700;
  color:var(--text-primary);
  text-align:center;
  margin-bottom:8px;
}
.modal-subtitle{
  font-size:13px;
  color:var(--text-muted);
  text-align:center;
  margin-bottom:28px;
}
.form-group{
  margin-bottom:16px;
}
.form-group label{
  display:block;
  font-size:13px;
  font-weight:500;
  color:var(--text-body);
  margin-bottom:6px;
}
.form-group input,.form-group textarea{
  width:100%;
  padding:13px 16px;
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:8px;
  color:var(--text-primary);
  font-size:14px;
  transition:border-color .2s,box-shadow .2s;
}
.form-group input:focus,.form-group textarea:focus{
  border-color:var(--accent);
  box-shadow:0 0 0 3px rgba(34,211,238,0.15);
  background:rgba(255,255,255,0.08);
}
.form-group input::placeholder,.form-group textarea::placeholder{
  color:var(--text-muted);
}
.form-group textarea{
  height:90px;
  resize:vertical;
}
.form-privacy{
  display:flex;
  align-items:flex-start;
  gap:8px;
  font-size:12px;
  color:var(--text-muted);
  margin-bottom:20px;
}
.form-privacy input[type="checkbox"]{
  accent-color:var(--accent);
  margin-top:3px;
  flex-shrink:0;
}
.form-privacy a{
  color:var(--text-link);
  text-decoration:underline;
}
.privacy-note{
  font-size:12px;
  color:var(--text-muted);
  text-align:center;
  margin-top:16px;
  line-height:1.5;
}
.privacy-note a{
  color:var(--text-link);
  text-decoration:underline;
}

/* footer */
.footer{
  background:#070B14;
  border-top:1px solid rgba(255,255,255,0.06);
  padding:64px 0 24px;
  position:relative;
  overflow:hidden;
}
.footer::before{
  content:'';
  position:absolute;
  bottom:0;
  left:0;
  right:0;
  height:60px;
  background:repeating-linear-gradient(-45deg,transparent 0px,transparent 28px,rgba(255,255,255,0.015) 28px,rgba(255,255,255,0.015) 29px);
  pointer-events:none;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo{
  margin-bottom:18px;
}
.footer-desc{
  font-size:14px;
  color:var(--text-muted);
  line-height:1.7;
  max-width:280px;
}
.footer-title{
  font-size:16px;
  font-weight:600;
  color:var(--text-primary);
  margin-bottom:18px;
  position:relative;
  padding-bottom:10px;
}
.footer-title::after{
  content:'';
  position:absolute;
  bottom:0;
  left:0;
  width:28px;
  height:2px;
  background:var(--gradient-main);
}
.footer-links li{
  margin-bottom:10px;
}
.footer-links a{
  font-size:14px;
  color:var(--text-body);
  transition:color .2s;
}
.footer-links a:hover{
  color:var(--accent);
}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:var(--text-body);
  margin-bottom:12px;
  line-height:1.5;
}
.footer-contact li .label{
  color:var(--text-muted);
  font-style:normal;
  min-width:32px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.05);
  padding-top:24px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:12px;
  font-size:12px;
  color:var(--text-muted);
  position:relative;
  z-index:1;
}
.footer-bottom a{
  color:var(--text-muted);
  transition:color .2s;
}
.footer-bottom a:hover{
  color:var(--accent);
}
.footer-bottom .copy{
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.footer-bottom .sep{
  margin:0 6px;
  color:rgba(255,255,255,0.15);
}

@media (max-width:1024px){
  :root{
    --section-pad:64px;
  }
  .nav-link{
    padding:8px 12px;
  }
  .countdown{
    display:none;
  }
  .stats-grid{
    grid-template-columns:1fr;
  }
  .stat-side{
    flex-direction:row;
    flex-wrap:wrap;
  }
  .stat-row{
    flex:1 1 30%;
    min-width:160px;
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
    padding:18px;
  }
  .stat-row .row-num{
    font-size:26px;
  }
  .news-layout{
    grid-template-columns:1fr;
  }
}
@media (max-width:768px){
  :root{
    --section-pad:48px;
  }
  body{
    padding-top:56px;
  }
  .top-bar{
    height:38px;
  }
  .header-main{
    height:var(--header-h-mb);
  }
  .hero{
    min-height:auto;
    padding:110px 0 60px;
  }
  .hero h1{
    font-size:32px;
  }
  .hero-subtitle{
    font-size:16px;
  }
  .hero-stats{
    gap:8px;
  }
  .hero-stat{
    padding:0 16px;
  }
  .hero-stat .num{
    font-size:20px;
  }
  .nav{
    display:none;
    position:absolute;
    top:var(--header-h-mb);
    left:0;
    right:0;
    background:rgba(10,14,26,0.98);
    backdrop-filter:blur(20px);
    flex-direction:column;
    padding:20px 16px;
    gap:8px;
    border-bottom:1px solid rgba(255,255,255,0.08);
    box-shadow:0 20px 40px rgba(0,0,0,0.4);
  }
  .nav.open{
    display:flex;
  }
  .nav-link{
    width:100%;
    text-align:left;
    padding:14px 16px;
    font-size:16px;
  }
  .nav-link.active::after{
    left:16px;
    transform:none;
    width:24px;
    bottom:10px;
  }
  .nav-toggle{
    display:flex;
  }
  .status-badge{
    display:none;
  }
  .header-right .btn-sm{
    padding:9px 16px;
    font-size:13px;
  }
  .section-title{
    font-size:26px;
  }
  .tabs{
    flex-direction:column;
    gap:20px;
  }
  .tab-list{
    flex:none;
    flex-direction:row;
    gap:8px;
    overflow-x:auto;
    -webkit-overflow-scrolling:touch;
    padding-bottom:4px;
  }
  .tab-item{
    flex:0 0 auto;
    padding:12px 16px;
    border-left:none;
    border-bottom:2px solid transparent;
    white-space:nowrap;
  }
  .tab-item .tab-index{
    display:none;
  }
  .tab-item.active{
    border-left:none;
    border-bottom-color:var(--accent);
  }
  .panel-body{
    padding:24px;
  }
  .panel-cover{
    height:160px;
  }
  .feature-list{
    grid-template-columns:1fr;
  }
  .featured-cover{
    height:190px;
  }
  .featured-body{
    padding:20px;
  }
  .post-item{
    padding:10px;
  }
  .post-thumb{
    width:76px;
    height:60px;
  }
  .post-info h4 a{
    white-space:normal;
    display:-webkit-box;
    -webkit-line-clamp:2;
    -webkit-box-orient:vertical;
  }
  .faq-question{
    padding:16px 18px;
    font-size:15px;
  }
  .faq-answer-inner{
    padding-left:18px;
    margin-left:18px;
  }
  .cta-card{
    padding:40px 24px;
  }
  .cta-card h2{
    font-size:22px;
  }
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:32px;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
    gap:8px;
  }
  .modal{
    padding:28px 20px;
  }
}
@media (max-width:520px){
  .container{
    padding-left:16px;
    padding-right:16px;
  }
  .hero h1{
    font-size:28px;
  }
  .hero-subtitle{
    font-size:15px;
  }
  .hero-ctas .btn{
    width:100%;
  }
  .hero-stat{
    flex:1 1 50%;
    text-align:center;
    padding:8px 0;
  }
  .hero-stat:not(:last-child)::after{
    display:none;
  }
  .hero-stat .num{
    font-size:22px;
  }
  .stats-grid{
    gap:16px;
  }
  .stat-big-card{
    padding:32px 24px;
  }
  .stat-big-card .big-num{
    font-size:48px;
  }
  .footer-grid{
    grid-template-columns:1fr;
    gap:24px;
  }
}

body{
  padding-top:112px;
}
body.top-closed{
  padding-top:var(--header-h);
}
@media (max-width:768px){
  body{
    padding-top:94px;
  }
  body.top-closed{
    padding-top:var(--header-h-mb);
  }
}

/* roulang page: article */
/* ===== 设计变量 ===== */
:root {
  --bg-main: #0A0E1A;
  --bg-alt: #0D1322;
  --bg-alt2: #0F172A;
  --glass-bg: rgba(255,255,255,0.04);
  --glass-border: rgba(255,255,255,0.08);
  --glass-highlight: rgba(255,255,255,0.12);
  --primary: #2E6BFF;
  --primary-deep: #1A3A8F;
  --accent: #22D3EE;
  --gradient: linear-gradient(135deg, #2E6BFF, #22D3EE);
  --gradient-rev: linear-gradient(135deg, #22D3EE, #2E6BFF);
  --success: #00E57A;
  --warning: #FF9F43;
  --error: #FF4D67;
  --info: #22D3EE;
  --text-main: #E6EDF7;
  --text-body: #98A4BE;
  --text-muted: #5E6888;
  --text-link: #6DB4FF;
  --shadow-btn: 0 0 20px rgba(34,211,238,0.25), 0 4px 12px rgba(46,107,255,0.3);
  --shadow-card: 0 8px 32px rgba(46,107,255,0.15), 0 0 0 1px rgba(34,211,238,0.15);
  --radius: 14px;
  --radius-sm: 8px;
  --container-w: 1200px;
  --font-main: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--bg-main);
  color: var(--text-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; transition: color .2s ease; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
ul, ol { list-style: none; }
input, textarea { font-family: inherit; }

.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 24px;
}
@media (max-width: 767px) {
  .container { padding: 0 16px; }
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 10px;
  transition: all .25s ease;
  white-space: nowrap;
  line-height: 1;
}
.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: var(--shadow-btn);
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(34,211,238,0.4), 0 6px 16px rgba(46,107,255,0.4);
}
.btn-primary:active {
  transform: translateY(0);
  box-shadow: 0 0 20px rgba(34,211,238,0.2);
}
.btn-outline {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.25);
  color: #E6EDF7;
}
.btn-outline:hover {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.5);
}
.btn-sm { padding: 10px 20px; font-size: 14px; border-radius: 8px; }
.btn-block { width: 100%; }
.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10,14,26,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.header-main { height: 72px; }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark {
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: var(--gradient);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 16px rgba(34,211,238,0.35);
}
.logo-mark svg { display: block; }
.logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--text-main);
  letter-spacing: 0;
}
.logo-text span { color: var(--accent); }

.nav {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  position: relative;
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-body);
  border-radius: 8px;
  transition: color .2s ease;
}
.nav-link:hover { color: var(--accent); }
.nav-link.active {
  color: var(--accent);
  font-weight: 600;
}
.nav-link.active::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--gradient);
  border-radius: 2px;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 16px;
}
.status-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 30px;
  font-size: 13px;
  color: #E6EDF7;
}
.status-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--success);
  box-shadow: 0 0 8px rgba(0,229,122,0.7);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .6; transform: scale(0.85); }
}
.countdown {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 13px;
  color: var(--text-body);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 30px;
  padding: 5px 14px;
}
.countdown b {
  color: var(--warning);
  font-weight: 600;
}
.countdown {
  font-variant-numeric: tabular-nums;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 8px;
}
.nav-toggle span {
  width: 22px; height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: all .3s ease;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== 面包屑 ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 6px;
  padding: 28px 0 0;
  font-size: 13px;
  color: var(--text-muted);
}
.breadcrumb a { color: var(--text-muted); transition: color .2s; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb .sep { color: rgba(255,255,255,0.2); margin: 0 2px; }
.breadcrumb .current { color: var(--text-body); max-width: 320px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

/* ===== 文章页 ===== */
.article-page {
  position: relative;
  background:
    radial-gradient(ellipse at 80% -20%, rgba(46,107,255,0.12), transparent 55%),
    radial-gradient(ellipse at 20% 40%, rgba(34,211,238,0.06), transparent 50%),
    var(--bg-main);
}
.article-page::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
  background-size: 36px 36px;
  pointer-events: none;
  z-index: 0;
}
.article-page .container { position: relative; z-index: 1; }

.article-header {
  padding: 32px 0 8px;
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}
.article-header h1 {
  font-size: 32px;
  font-weight: 700;
  line-height: 1.3;
  color: var(--text-main);
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}
.article-meta {
  display: flex;
  align-items: center;
  justify-content: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 26px;
}
.article-meta .meta-date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.article-meta .meta-cat {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(46,107,255,0.15);
  color: var(--text-link);
  border-radius: 30px;
  font-size: 12px;
  font-weight: 500;
}
.article-cover {
  width: 100%;
  max-height: 420px;
  object-fit: cover;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.08);
  box-shadow: 0 16px 48px rgba(0,0,0,0.3);
  margin: 0 auto 40px;
}

/* ===== 正文阅读区 ===== */
.article-body {
  max-width: 780px;
  margin: 0 auto;
  padding: 0 0 32px;
}
.article-content {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-body);
  word-break: break-word;
}
.article-content p { margin-bottom: 22px; }
.article-content h2 {
  font-size: 26px;
  font-weight: 700;
  color: var(--text-main);
  margin: 44px 0 20px;
  padding-left: 16px;
  position: relative;
  line-height: 1.4;
}
.article-content h2::before {
  content: "";
  position: absolute;
  left: 0;
  top: 6px;
  bottom: 6px;
  width: 4px;
  border-radius: 4px;
  background: var(--gradient);
}
.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-main);
  margin: 32px 0 14px;
  line-height: 1.4;
}
.article-content h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  margin: 24px 0 12px;
}
.article-content ul,
.article-content ol {
  margin: 16px 0 24px;
  padding-left: 24px;
}
.article-content ul li {
  position: relative;
  margin-bottom: 10px;
  padding-left: 8px;
}
.article-content ul li::before {
  content: "";
  position: absolute;
  left: -18px;
  top: 11px;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px rgba(34,211,238,0.5);
}
.article-content ol li {
  list-style: decimal;
  margin-bottom: 10px;
  padding-left: 6px;
}
.article-content blockquote {
  margin: 24px 0;
  padding: 18px 22px;
  background: rgba(255,255,255,0.03);
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
  font-size: 15px;
  font-style: normal;
  color: var(--text-main);
}
.article-content img {
  border-radius: 10px;
  margin: 24px auto;
  border: 1px solid rgba(255,255,255,0.08);
}
.article-content a {
  color: var(--text-link);
  border-bottom: 1px solid rgba(109,180,255,0.3);
  transition: border-color .2s;
}
.article-content a:hover { border-color: var(--accent); }
.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}
.article-content table th {
  background: rgba(46,107,255,0.12);
  color: var(--text-main);
  font-weight: 600;
  padding: 12px 14px;
  border: 1px solid rgba(255,255,255,0.08);
  text-align: left;
}
.article-content table td {
  padding: 10px 14px;
  border: 1px solid rgba(255,255,255,0.06);
  color: var(--text-body);
}
.article-content table tr:hover td {
  background: rgba(255,255,255,0.02);
}
.article-content strong { color: var(--text-main); font-weight: 600; }
.article-content hr {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.08);
  margin: 32px 0;
}

/* ===== 文章标签 ===== */
.article-tags {
  max-width: 780px;
  margin: 8px auto 0;
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.article-tags .tag {
  display: inline-block;
  padding: 6px 16px;
  font-size: 13px;
  background: rgba(46,107,255,0.12);
  color: var(--text-link);
  border: 1px solid rgba(46,107,255,0.15);
  border-radius: 30px;
  transition: all .2s;
  cursor: pointer;
}
.article-tags .tag:hover {
  background: rgba(34,211,238,0.15);
  border-color: var(--accent);
  color: var(--accent);
}

/* ===== 空态 ===== */
.empty-state {
  max-width: 780px;
  margin: 40px auto;
  padding: 60px 40px;
  text-align: center;
  background: rgba(255,255,255,0.02);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: 16px;
}
.empty-icon {
  width: 56px;
  height: 56px;
  margin: 0 auto 18px;
  border-radius: 50%;
  background: rgba(46,107,255,0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  font-weight: 700;
  color: var(--accent);
}
.empty-state p {
  font-size: 15px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

/* ===== 相关推荐 ===== */
.related-section {
  padding: 72px 0 48px;
  background: var(--bg-alt);
  position: relative;
}
.related-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(rgba(255,255,255,0.012) 1px, transparent 1px);
  background-size: 100% 40px;
  pointer-events: none;
}
.section-title {
  font-size: 30px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 36px;
  padding-left: 18px;
  position: relative;
  line-height: 1.3;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  bottom: 4px;
  width: 4px;
  border-radius: 4px;
  background: var(--gradient);
}

.related-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 24px;
}
.related-card {
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all .3s ease;
  position: relative;
}
.related-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 20%;
  right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
}
.related-card:hover {
  border-color: rgba(34,211,238,0.25);
  box-shadow: var(--shadow-card);
  transform: translateY(-3px);
}
.related-main { grid-row: span 2; }
.related-main img {
  width: 100%;
  height: 280px;
  object-fit: cover;
}
.related-body { padding: 24px; }
.related-body h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 12px;
  line-height: 1.4;
  transition: color .2s;
}
.related-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-date {
  font-size: 12px;
  color: var(--text-muted);
  font-variant-numeric: tabular-nums;
}

.related-sublist {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.related-item {
  display: flex;
  gap: 16px;
  padding: 18px;
  background: rgba(255,255,255,0.03);
  border: 1px solid var(--glass-border);
  border-radius: var(--radius);
  transition: all .3s ease;
  position: relative;
}
.related-item::after {
  content: "";
  position: absolute;
  top: 0;
  left: 25%;
  right: 25%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.12), transparent);
}
.related-item:hover {
  border-color: rgba(34,211,238,0.25);
  box-shadow: 0 6px 24px rgba(46,107,255,0.12);
}
.related-item img {
  width: 120px;
  height: 86px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}
.related-item h3 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text-main);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color .2s;
}
.related-item:hover h3 { color: var(--accent); }

/* ===== 返回列表入口 ===== */
.back-entry {
  text-align: center;
  padding: 36px 0 0;
}

/* ===== CTA ===== */
.cta-section {
  padding: 64px 0;
  background: var(--bg-main);
  position: relative;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(115deg, transparent 0%, rgba(34,211,238,0.04) 40%, rgba(46,107,255,0.06) 75%, transparent 100%);
  pointer-events: none;
}
.cta-card {
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
  padding: 56px 48px;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(34,211,238,0.2);
  border-radius: 20px;
  position: relative;
  backdrop-filter: blur(16px);
  background-image:
    radial-gradient(circle at 20% 20%, rgba(34,211,238,0.08), transparent 60%),
    linear-gradient(135deg, rgba(46,107,255,0.06), rgba(34,211,238,0.04));
  box-shadow: 0 0 60px rgba(46,107,255,0.08);
}
.cta-card h2 {
  font-size: 28px;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 14px;
  line-height: 1.3;
}
.cta-card p {
  font-size: 15px;
  color: var(--text-body);
  margin-bottom: 28px;
  line-height: 1.6;
}
.cta-card .btn { font-size: 16px; }

/* ===== Footer ===== */
.footer {
  background: #070B14;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 60px 0 24px;
  position: relative;
  overflow: hidden;
}
.footer::before {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, rgba(34,211,238,0.25), rgba(46,107,255,0.3), transparent);
  pointer-events: none;
}
.footer::after {
  content: "";
  position: absolute;
  bottom: -30px;
  right: -20px;
  width: 300px;
  height: 120px;
  background: repeating-linear-gradient(
    -45deg,
    transparent,
    transparent 12px,
    rgba(255,255,255,0.015) 12px,
    rgba(255,255,255,0.015) 13px
  );
  pointer-events: none;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 44px;
}
.footer-brand .logo { margin-bottom: 16px; }
.footer-desc {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
  max-width: 320px;
}
.footer-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 18px;
}
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  font-size: 14px;
  color: var(--text-muted);
  transition: color .2s, padding-left .2s;
}
.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}
.footer-contact li {
  font-size: 14px;
  color: var(--text-muted);
  margin-bottom: 12px;
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.footer-contact .label {
  font-size: 12px;
  color: var(--text-muted);
  opacity: 0.6;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 22px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-muted);
}
.footer-bottom .sep {
  margin: 0 8px;
  color: rgba(255,255,255,0.15);
}
.footer-bottom a:hover { color: var(--accent); }

/* ===== 表单弹层 ===== */
.modal {
  position: fixed;
  inset: 0;
  z-index: 200;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  visibility: hidden;
  opacity: 0;
  transition: all .3s ease;
}
.modal.open {
  visibility: visible;
  opacity: 1;
}
.modal-mask {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.6);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
}
.modal-card {
  position: relative;
  width: 100%;
  max-width: 430px;
  background: rgba(18,24,40,0.92);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: 16px;
  padding: 36px 32px 28px;
  backdrop-filter: blur(20px);
  transform: translateY(24px) scale(0.97);
  transition: transform .3s ease;
  box-shadow: 0 24px 80px rgba(0,0,0,0.4), 0 0 0 1px rgba(34,211,238,0.08), 0 0 60px rgba(46,107,255,0.08);
}
.modal.open .modal-card {
  transform: translateY(0) scale(1);
}
.modal-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 20%;
  right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.2), transparent);
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  color: var(--text-muted);
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  transition: all .2s;
}
.modal-close:hover {
  color: #fff;
  background: rgba(255,255,255,0.1);
}
.modal-card h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-main);
  text-align: center;
  margin-bottom: 6px;
}
.modal-sub {
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
  margin-bottom: 24px;
}
.modal-card form {
  display: flex;
  flex-direction: column;
  gap: 14px;
}
.modal-card input,
.modal-card textarea {
  width: 100%;
  padding: 12px 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  color: var(--text-main);
  font-size: 14px;
  transition: all .25s;
  outline: none;
}
.modal-card input::placeholder,
.modal-card textarea::placeholder {
  color: rgba(94,104,136,0.8);
}
.modal-card input:focus,
.modal-card textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(34,211,238,0.15);
}
.modal-card textarea { resize: vertical; min-height: 70px; }
.privacy-check {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  cursor: pointer;
  line-height: 1.5;
}
.privacy-check input {
  width: auto;
  margin-top: 3px;
  accent-color: var(--accent);
  flex-shrink: 0;
}
.privacy-check a {
  color: var(--text-link);
  font-size: 13px;
}
.privacy-note {
  font-size: 12px;
  color: rgba(94,104,136,0.6);
  text-align: center;
  margin-top: 18px;
  line-height: 1.5;
}

/* ===== 移动端菜单 ===== */
@media (max-width: 1024px) {
  .nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(10,14,26,0.97);
    backdrop-filter: blur(20px);
    flex-direction: column;
    align-items: stretch;
    padding: 16px;
    gap: 4px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    transform: translateY(-120%);
    transition: transform .3s ease;
    z-index: 99;
    max-height: calc(100vh - 72px);
    overflow-y: auto;
  }
  .nav.open {
    transform: translateY(0);
  }
  .nav-link {
    padding: 14px 18px;
    font-size: 16px;
    text-align: left;
  }
  .nav-link.active::after {
    left: 18px;
    right: auto;
    width: 40px;
  }
  .nav-toggle {
    display: flex;
  }
  .header-right {
    gap: 10px;
  }
  .countdown {
    display: none;
  }
  .header-inner {
    gap: 12px;
  }
}

@media (max-width: 767px) {
  .header-main {
    height: 56px;
  }
  .header-inner {
    height: 56px;
  }
  .nav {
    top: 56px;
    max-height: calc(100vh - 56px);
  }
  .status-badge {
    display: none;
  }
  .btn-sm {
    padding: 8px 16px;
    font-size: 13px;
  }
  .logo-text {
    font-size: 18px;
  }
  .breadcrumb {
    padding-top: 20px;
    font-size: 12px;
  }
  .article-header {
    padding-top: 20px;
    text-align: left;
  }
  .article-header h1 {
    font-size: 26px;
    line-height: 1.35;
  }
  .article-meta {
    justify-content: flex-start;
    gap: 8px;
    font-size: 12px;
  }
  .article-cover {
    border-radius: 10px;
    margin-bottom: 28px;
  }
  .article-body {
    padding-bottom: 20px;
  }
  .article-content {
    font-size: 15px;
    line-height: 1.75;
  }
  .article-content p {
    margin-bottom: 18px;
  }
  .article-content h2 {
    font-size: 22px;
    margin-top: 32px;
  }
  .article-tags {
    padding-bottom: 36px;
  }
  .related-section {
    padding: 48px 0 32px;
  }
  .section-title {
    font-size: 24px;
    margin-bottom: 24px;
  }
  .related-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .related-main { grid-row: auto; }
  .related-main img {
    height: 200px;
  }
  .related-sublist {
    gap: 16px;
  }
  .related-item {
    padding: 14px;
  }
  .related-item img {
    width: 90px;
    height: 68px;
  }
  .related-item h3 {
    font-size: 14px;
  }
  .cta-section {
    padding: 40px 0;
  }
  .cta-card {
    padding: 36px 24px;
  }
  .cta-card h2 {
    font-size: 22px;
  }
  .cta-card .btn {
    width: 100%;
  }
  .footer {
    padding: 44px 0 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
    text-align: center;
  }
  .modal-card {
    padding: 28px 20px 22px;
  }
  .modal-card h3 {
    font-size: 19px;
  }
}

/* roulang page: category1 */
:root{
  --bg-primary:#0A0E1A;
  --bg-secondary:#0D1322;
  --bg-tertiary:#0F172A;
  --glass-bg:rgba(255,255,255,0.04);
  --glass-bg-strong:rgba(255,255,255,0.05);
  --glass-border:rgba(255,255,255,0.08);
  --glass-highlight:rgba(255,255,255,0.14);
  --primary:#2E6BFF;
  --primary-dark:#1A3A8F;
  --cyan:#22D3EE;
  --gradient:linear-gradient(135deg,#2E6BFF,#22D3EE);
  --success:#00E57A;
  --warning:#FF9F43;
  --error:#FF4D67;
  --text-primary:#E6EDF7;
  --text-body:#98A4BE;
  --text-muted:#5E6888;
  --link:#6DB4FF;
  --radius:14px;
  --radius-sm:8px;
  --shadow-btn:0 0 20px rgba(34,211,238,0.25),0 4px 12px rgba(46,107,255,0.3);
  --shadow-btn-hover:0 0 40px rgba(34,211,238,0.4),0 8px 24px rgba(46,107,255,0.35);
  --shadow-card-hover:0 8px 32px rgba(46,107,255,0.15),0 0 0 1px rgba(34,211,238,0.15);
  --container:1200px;
  --space-section:96px;
  --header-h:72px;
  --radius-card:14px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  background:var(--bg-primary);
  color:var(--text-body);
  font-size:16px;
  line-height:1.7;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button{font-family:inherit;border:none;background:none;cursor:pointer;color:inherit}
input,textarea{font-family:inherit;font-size:14px;color:var(--text-primary)}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%}
.section{padding:var(--space-section) 0;position:relative}
.section-alt{background:var(--bg-secondary)}
.section-tertiary{background:var(--bg-tertiary)}
.grid-overlay{
  position:absolute;inset:0;pointer-events:none;
  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:42px 42px;
}
.speed-line{
  position:absolute;top:0;bottom:0;left:-10%;width:60%;
  background:linear-gradient(105deg,transparent 25%,rgba(34,211,238,0.045) 45%,rgba(255,255,255,0.04) 55%,transparent 80%);
  transform:skewX(-18deg);
  pointer-events:none;
}
.section-head{margin-bottom:48px;position:relative;z-index:1}
.section-tag{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;font-weight:600;letter-spacing:.5px;
  color:var(--cyan);margin-bottom:10px;
}
.section-tag::before{
  content:'';width:18px;height:4px;border-radius:4px;
  background:var(--gradient);display:inline-block;
}
.section-title{
  font-size:32px;line-height:1.3;font-weight:700;color:var(--text-primary);
  border-left:4px solid var(--cyan);
  padding-left:16px;
  border-radius:4px;
  letter-spacing:-.5px;
}
.section-desc{margin-top:14px;font-size:15px;color:var(--text-body);max-width:760px;line-height:1.7}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;border-radius:10px;
  padding:14px 28px;font-size:15px;
  transition:all .3s ease;
  border:1px solid transparent;
  white-space:nowrap;
}
.btn-primary{
  background:var(--gradient);color:#fff;
  box-shadow:var(--shadow-btn);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--shadow-btn-hover)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 12px rgba(34,211,238,0.15)}
.btn-outline{
  background:transparent;border-color:rgba(255,255,255,0.25);
  color:var(--text-primary);
}
.btn-outline:hover{background:rgba(255,255,255,0.06);border-color:rgba(255,255,255,0.5);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-sm{padding:9px 18px;font-size:14px;border-radius:8px}
.btn-lg{padding:15px 34px;font-size:16px;border-radius:10px}
.btn-block{width:100%}
.btn-primary:focus-visible,.btn-outline:focus-visible,.btn-open-modal:focus-visible{outline:2px solid var(--cyan);outline-offset:2px}

/* ===== Header ===== */
.header{
  position:fixed;top:0;left:0;right:0;z-index:1000;
  transition:background .3s ease;
}
.header-main{
  background:rgba(10,14,26,0.72);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease;
}
.header.scrolled .header-main{
  background:rgba(10,14,26,0.85);
  border-bottom-color:rgba(255,255,255,0.06);
}
.header-inner{
  height:var(--header-h);
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;
}
.logo{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.logo-mark{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,#2E6BFF,#22D3EE);
  display:inline-flex;align-items:center;justify-content:center;
  box-shadow:0 0 18px rgba(34,211,238,0.35);
}
.logo-text{font-size:23px;font-weight:800;color:#fff;letter-spacing:-.5px;font-feature-settings:"tnum"}
.logo-text span{color:var(--cyan)}
.nav{display:flex;align-items:center;gap:28px}
.nav-link{
  color:var(--text-body);font-size:15px;font-weight:500;
  padding:8px 2px;position:relative;transition:color .25s ease;
}
.nav-link:hover{color:var(--cyan)}
.nav-link.active{color:var(--cyan)}
.nav-link.active::after{
  content:'';position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--gradient);border-radius:2px;
}
.header-right{display:flex;align-items:center;gap:12px;flex-shrink:0}
.status-badge{
  display:inline-flex;align-items:center;gap:7px;
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:999px;padding:5px 12px;font-size:12px;color:#fff;
}
.status-dot{
  width:8px;height:8px;border-radius:50%;
  background:var(--success);
  box-shadow:0 0 8px rgba(0,229,122,0.6);
}
.countdown{
  display:inline-flex;align-items:center;gap:4px;
  font-size:12px;color:var(--text-primary);
  background:rgba(255,255,255,0.05);
  border:1px solid rgba(255,255,255,0.08);
  border-radius:999px;padding:5px 12px;
  font-feature-settings:"tnum";
}
.countdown b{color:var(--warning);font-weight:600;margin-right:2px}
.nav-toggle{
  display:none;flex-direction:column;justify-content:center;gap:5px;
  width:40px;height:40px;border-radius:8px;
  background:rgba(255,255,255,0.05);
  align-items:center;
}
.nav-toggle span{width:18px;height:2px;background:#fff;border-radius:2px;transition:transform .3s,opacity .3s}
.nav-toggle.active span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Hero ===== */
.category-hero{
  position:relative;
  min-height:400px;
  display:flex;align-items:center;
  background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  overflow:hidden;
  padding:120px 0 72px;
}
.category-hero::before{
  content:'';position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(10,14,26,0.94) 30%,rgba(10,14,26,0.55));
}
.hero-corner{
  position:absolute;right:-60px;bottom:20px;
  width:260px;height:260px;
  background:linear-gradient(135deg,rgba(46,107,255,0.22),rgba(34,211,238,0.05));
  clip-path:polygon(25% 0,100% 0,100% 100%,0 65%);
  pointer-events:none;
}
.category-hero .container{position:relative;z-index:2}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(34,211,238,0.1);
  border:1px solid rgba(34,211,238,0.25);
  color:var(--cyan);font-size:13px;font-weight:600;
  border-radius:999px;padding:6px 16px;margin-bottom:18px;
}
.hero-badge::before{
  content:'';width:8px;height:8px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 10px rgba(34,211,238,0.8);
}
.category-hero h1{
  font-size:40px;line-height:1.2;font-weight:800;color:#fff;
  letter-spacing:-1px;
  text-shadow:0 0 30px rgba(34,211,238,0.3);
  max-width:700px;
  font-feature-settings:"tnum";
}
.hero-sub{
  font-size:18px;line-height:1.7;color:var(--text-body);
  max-width:680px;margin-top:16px;
}
.hero-actions{display:flex;gap:16px;margin-top:30px;flex-wrap:wrap}
.hero-stats{
  display:flex;gap:0;margin-top:44px;
}
.hero-stat{
  padding-left:22px;margin-left:22px;
  border-left:1px solid rgba(255,255,255,0.12);
}
.hero-stat:first-child{border-left:none;padding-left:0;margin-left:0}
.hero-stat b{
  display:block;font-size:22px;font-weight:800;color:#fff;
  font-feature-settings:"tnum";
  text-shadow:0 0 20px rgba(34,211,238,0.35);
}
.hero-stat span{
  display:block;font-size:12px;color:var(--text-muted);margin-top:2px;
}

/* ===== Pain ===== */
.pain-section{background:var(--bg-secondary)}
.pain-list{max-width:900px;position:relative;z-index:1}
.pain-item{
  display:flex;align-items:center;gap:14px;
  padding:20px 4px;
  border-bottom:1px solid rgba(255,255,255,0.06);
  color:var(--text-primary);font-size:16px;
  transition:padding-left .3s ease;
}
.pain-item:last-child{border-bottom:none}
.pain-item:hover{padding-left:10px;color:#fff}
.pain-icon{flex-shrink:0;display:inline-flex}
.pain-item em{font-style:normal;color:var(--cyan);font-weight:600;margin-right:4px}

/* ===== Solution Tabs ===== */
.solution-grid-wrap{
  display:grid;grid-template-columns:280px 1fr;gap:24px;
  position:relative;z-index:1;
  align-items:start;
}
.tab-list{display:flex;flex-direction:column;gap:8px}
.tab-btn{
  text-align:left;padding:16px 18px;
  background:rgba(255,255,255,0.03);
  border:1px solid transparent;
  border-radius:12px;
  color:var(--text-body);
  cursor:pointer;
  transition:all .3s ease;
  position:relative;
}
.tab-btn .tab-num{
  display:block;font-size:12px;font-weight:700;color:var(--text-muted);
  font-feature-settings:"tnum";margin-bottom:4px;letter-spacing:.5px;
}
.tab-btn .tab-name{font-size:16px;font-weight:600;color:inherit}
.tab-btn:hover{background:rgba(255,255,255,0.06);color:var(--text-primary)}
.tab-btn.active{
  background:rgba(34,211,238,0.08);
  border-color:rgba(34,211,238,0.2);
  color:var(--cyan);
  box-shadow:inset 3px 0 0 var(--cyan);
}
.tab-btn.active .tab-num{color:var(--cyan)}
.tab-pane{display:none}
.tab-pane.active{display:block;animation:fadeIn .4s ease}
@keyframes fadeIn{from{opacity:0;transform:translateY(10px)}to{opacity:1;transform:translateY(0)}}
.solution-card{
  background:var(--glass-bg);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  padding:28px;
  position:relative;
  overflow:hidden;
  transition:all .3s ease;
}
.solution-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.18),transparent);
}
.solution-card::after{
  content:'';position:absolute;top:-40px;left:-40px;
  width:120px;height:120px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,255,255,0.1),transparent 70%);
  pointer-events:none;
}
.solution-card:hover{border-color:rgba(34,211,238,0.25);box-shadow:var(--shadow-card-hover)}
.solution-inner{display:grid;grid-template-columns:1fr 1.1fr;gap:28px;align-items:center}
.solution-img{
  height:280px;border-radius:12px;
  background-size:cover;background-position:center;
  position:relative;overflow:hidden;
}
.solution-img::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 50%,rgba(10,14,26,0.3));
}
.solution-title{font-size:22px;font-weight:700;color:var(--text-primary);margin-bottom:12px}
.solution-desc{font-size:15px;color:var(--text-body);line-height:1.7;margin-bottom:18px}
.solution-features li{
  display:flex;align-items:center;gap:10px;
  padding:6px 0;color:#C6D0E3;font-size:14px;
}
.solution-features li::before{
  content:'';width:8px;height:8px;border-radius:50%;
  background:var(--cyan);box-shadow:0 0 8px rgba(34,211,238,0.5);
  flex-shrink:0;
}

/* ===== Process ===== */
.process-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  position:relative;z-index:1;
}
.process-card{
  background:var(--glass-bg);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  padding:28px 24px;
  position:relative;overflow:hidden;
  transition:all .3s ease;
}
.process-card::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.16),transparent);
}
.process-card:hover{border-color:rgba(34,211,238,0.22);box-shadow:var(--shadow-card-hover);transform:translateY(-4px)}
.process-num{
  font-size:30px;font-weight:800;
  background:var(--gradient);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
  font-feature-settings:"tnum";
  text-shadow:0 0 30px rgba(34,211,238,0.25);
  letter-spacing:-1px;
  margin-bottom:8px;
}
.process-title{font-size:17px;font-weight:700;color:var(--text-primary);margin-bottom:10px}
.process-desc{font-size:13px;line-height:1.65;color:var(--text-muted)}

/* ===== Stats ===== */
.stats-grid{
  display:grid;grid-template-columns:1fr 1.5fr;gap:24px;
  position:relative;z-index:1;
}
.stats-main{
  background:var(--glass-bg-strong);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  padding:40px 36px;
  display:flex;flex-direction:column;justify-content:center;
  position:relative;overflow:hidden;
}
.stats-main::after{
  content:'';position:absolute;top:-60px;right:-60px;
  width:160px;height:160px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,107,255,0.16),transparent 70%);
}
.stats-main .stats-label{font-size:14px;color:var(--text-muted);margin-bottom:8px}
.stats-big{
  font-size:64px;font-weight:800;line-height:1.1;
  background:var(--gradient);
  -webkit-background-clip:text;-webkit-text-fill-color:transparent;
  background-clip:text;
  font-feature-settings:"tnum";
  letter-spacing:-2px;
}
.stats-big-note{font-size:13px;color:var(--text-muted);margin-top:12px;line-height:1.6}
.stats-side{display:flex;flex-direction:column;gap:16px}
.stat-item{
  background:var(--glass-bg);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  padding:24px 26px;
  display:grid;grid-template-columns:110px 1fr;gap:20px;
  align-items:center;
  transition:all .3s ease;position:relative;overflow:hidden;
}
.stat-item::before{
  content:'';position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,0.16),transparent);
}
.stat-item:hover{border-color:rgba(34,211,238,0.2);box-shadow:var(--shadow-card-hover)}
.stat-item b{
  font-size:34px;font-weight:800;color:#fff;
  font-feature-settings:"tnum";letter-spacing:-1px;
  text-shadow:0 0 24px rgba(34,211,238,0.3);
}
.stat-item .stat-name{font-size:15px;font-weight:700;color:var(--text-primary);margin-bottom:4px}
.stat-item .stat-info{font-size:12px;color:var(--text-muted);line-height:1.5}

/* ===== Scenario ===== */
.scenario-grid{
  display:grid;grid-template-columns:repeat(2,1fr);gap:24px;
  position:relative;z-index:1;
}
.scenario-card{
  background:var(--glass-bg);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border:1px solid var(--glass-border);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:all .3s ease;
  position:relative;
}
.scenario-card:hover{border-color:rgba(34,211,238,0.22);box-shadow:var(--shadow-card-hover);transform:translateY(-4px)}
.scenario-card.large{grid-column:span 2}
.scenario-card .scenario-img{
  height:200px;background-size:cover;background-position:center;
  position:relative;
}
.scenario-card.large .scenario-img{height:280px}
.scenario-card .scenario-img::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,14,26,0.05),rgba(10,14,26,0.55));
}
.scenario-body{padding:22px 24px 26px}
.scenario-card h3{font-size:18px;font-weight:700;color:var(--text-primary);margin-bottom:8px}
.scenario-card p{font-size:13px;color:var(--text-body);line-height:1.65}
.scenario-tag{
  display:inline-block;background:rgba(46,107,255,0.15);
  color:var(--link);font-size:12px;font-weight:600;
  border-radius:999px;padding:3px 12px;margin-bottom:10px;
}

/* ===== FAQ ===== */
.faq-wrap{max-width:900px;margin:0 auto;position:relative;z-index:1}
.faq-item{
  background:rgba(255,255,255,0.03);
  border:1px solid rgba(255,255,255,0.06);
  border-radius:12px;
  margin-bottom:12px;
  transition:all .3s ease;
}
.faq-item.open{
  background:rgba(255,255,255,0.05);
  border-color:rgba(34,211,238,0.2);
  box-shadow:inset 3px 0 0 var(--cyan);
}
.faq-item-header{
  display:flex;justify-content:space-between;align-items:center;
  gap:16px;width:100%;
  padding:18px 22px;
  font-size:16px;font-weight:600;color:var(--text-primary);
  text-align:left;cursor:pointer;
}
.faq-item-header:hover{color:#fff}
.faq-icon{
  position:relative;width:16px;height:16px;flex-shrink:0;
  opacity:.7;transition:opacity .3s;
}
.faq-icon::before{
  content:'';position:absolute;left:0;top:7px;width:16px;height:2px;
  background:currentColor;border-radius:2px;
}
.faq-icon::after{
  content:'';position:absolute;left:7px;top:0;width:2px;height:16px;
  background:currentColor;border-radius:2px;
  transition:transform .3s ease,opacity .3s ease;
}
.faq-item.open .faq-icon{opacity:1}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-answer{
  display:none;padding:0 22px 20px;
  font-size:14px;line-height:1.75;color:var(--text-body);
}
.faq-item.open .faq-answer{display:block}

/* ===== CTA ===== */
.cta-card{
  background:linear-gradient(135deg,#2E6BFF,#22D3EE);
  border-radius:20px;padding:1px;
  box-shadow:var(--shadow-btn);
  position:relative;z-index:1;
}
.cta-inner{
  background:rgba(10,14,26,0.95);
  backdrop-filter:blur(16px);
  border-radius:19px;
  padding:64px 32px;
  text-align:center;
  position:relative;overflow:hidden;
}
.cta-inner::after{
  content:'';position:absolute;bottom:-60px;left:50%;transform:translateX(-50%);
  width:360px;height:120px;
  background:radial-gradient(ellipse,rgba(34,211,238,0.12),transparent 70%);
  pointer-events:none;
}
.cta-title{font-size:30px;font-weight:800;color:#fff;letter-spacing:-.5px;margin-bottom:12px}
.cta-desc{font-size:15px;color:var(--text-body);max-width:600px;margin:0 auto 28px}
.cta-inner .btn-primary{margin-top:6px}

/* ===== Footer ===== */
.footer{
  background:#070B14;
  border-top:1px solid rgba(255,255,255,0.06);
  padding:64px 0 24px;
  position:relative;overflow:hidden;
}
.footer::before{
  content:'';position:absolute;bottom:0;left:0;right:0;height:80px;
  background-image:
    linear-gradient(115deg,transparent 20%,rgba(255,255,255,0.025) 30%,transparent 40%),
    linear-gradient(115deg,transparent 60%,rgba(255,255,255,0.02) 70%,transparent 80%);
  background-size:120px 120px;
  pointer-events:none;
}
.footer::after{
  content:'';position:absolute;bottom:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,rgba(34,211,238,0.3),rgba(46,107,255,0.3),transparent);
}
.footer .container{position:relative;z-index:1}
.footer-grid{
  display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;
  margin-bottom:44px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--text-muted);line-height:1.75;max-width:320px}
.footer-title{font-size:16px;font-weight:700;color:var(--text-primary);margin-bottom:18px}
.footer-links li{margin-bottom:10px}
.footer-links a{
  font-size:14px;color:var(--text-muted);transition:color .25s ease;
}
.footer-links a:hover{color:var(--cyan)}
.footer-contact li{
  font-size:14px;color:var(--text-muted);margin-bottom:12px;line-height:1.7;
}
.footer-contact .label{
  color:var(--text-body);font-weight:600;margin-right:6px;
  display:inline-block;min-width:40px;
}
.footer-bottom{
  display:flex;justify-content:space-between;align-items:center;
  border-top:1px solid rgba(255,255,255,0.06);
  padding-top:22px;
  font-size:12px;color:var(--text-muted);
}
.footer-bottom a{color:var(--text-muted);transition:color .25s ease}
.footer-bottom a:hover{color:var(--cyan)}
.sep{margin:0 8px;opacity:.5}

/* ===== Modal ===== */
.modal-overlay{
  position:fixed;inset:0;z-index:2000;
  background:rgba(0,0,0,0.6);
  backdrop-filter:blur(6px);
  -webkit-backdrop-filter:blur(6px);
  display:flex;align-items:center;justify-content:center;
  padding:20px;
  opacity:0;visibility:hidden;
  transition:opacity .3s ease,visibility .3s ease;
}
.modal-overlay.show{opacity:1;visibility:visible}
.modal-card{
  width:100%;max-width:430px;
  background:linear-gradient(145deg,rgba(20,28,48,0.95),rgba(10,14,26,0.98));
  border:1px solid rgba(255,255,255,0.12);
  border-radius:16px;
  padding:36px 32px 28px;
  position:relative;
  box-shadow:0 24px 64px rgba(0,0,0,0.5),0 0 0 1px rgba(34,211,238,0.08);
  transform:translateY(20px) scale(.97);
  transition:transform .3s ease;
}
.modal-overlay.show .modal-card{transform:translateY(0) scale(1)}
.modal-close{
  position:absolute;top:14px;right:16px;
  width:32px;height:32px;border-radius:8px;
  color:var(--text-muted);font-size:22px;line-height:1;
  display:flex;align-items:center;justify-content:center;
  transition:all .25s ease;
}
.modal-close:hover{color:#fff;background:rgba(255,255,255,0.08)}
.modal-card h3{font-size:20px;font-weight:700;color:#fff;text-align:center;margin-bottom:6px}
.modal-sub{font-size:13px;color:var(--text-muted);text-align:center;margin-bottom:24px}
.modal-form .form-group{margin-bottom:14px}
.modal-form input,.modal-form textarea{
  width:100%;
  background:rgba(255,255,255,0.06);
  border:1px solid rgba(255,255,255,0.1);
  border-radius:8px;
  padding:12px 14px;
  color:var(--text-primary);
  transition:border-color .25s ease,box-shadow .25s ease;
  resize:vertical;
}
.modal-form input::placeholder,.modal-form textarea::placeholder{color:var(--text-muted)}
.modal-form input:focus,.modal-form textarea:focus{
  outline:none;border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(34,211,238,0.15);
}
.modal-form .btn-block{margin-top:8px}
.privacy{
  display:flex;align-items:center;justify-content:center;gap:6px;
  font-size:12px;color:var(--text-muted);
  margin-top:16px;
}
.privacy input{width:14px;height:14px;accent-color:var(--cyan)}
.privacy a{color:var(--link)}
.privacy-note{font-size:12px;color:var(--text-muted);text-align:center;margin-top:8px;line-height:1.6}

/* ===== Responsive ===== */
@media (max-width:1024px){
  :root{--space-section:72px}
  .nav{
    position:fixed;top:var(--header-h);left:0;right:0;
    flex-direction:column;align-items:stretch;
    background:rgba(10,14,26,0.96);
    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);
    padding:16px 24px 24px;
    display:none;
    border-bottom:1px solid rgba(255,255,255,0.08);
    box-shadow:0 20px 40px rgba(0,0,0,0.4);
    max-height:calc(100vh - var(--header-h));
    overflow-y:auto;
  }
  .nav.open{display:flex}
  .nav-link{padding:14px 4px;font-size:16px;border-bottom:1px solid rgba(255,255,255,0.04)}
  .nav-link.active::after{width:2px;height:auto;top:10px;bottom:10px;right:auto;left:0}
  .nav-toggle{display:inline-flex}
  .countdown{display:none}
  .status-badge{display:none}
  .solution-grid-wrap{grid-template-columns:1fr}
  .tab-list{flex-direction:row;overflow-x:auto;padding-bottom:8px}
  .tab-btn{flex-shrink:0;min-width:180px}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:1fr}
}
@media (max-width:768px){
  :root{
    --space-section:56px;
    --header-h:56px;
  }
  .container{padding:0 16px}
  .category-hero{min-height:360px;padding:100px 0 56px}
  .category-hero h1{font-size:30px}
  .hero-sub{font-size:16px}
  .hero-actions{flex-direction:column;gap:12px}
  .hero-actions .btn{width:100%}
  .hero-stats{flex-wrap:wrap;gap:16px}
  .hero-stat{padding-left:16px;margin-left:16px}
  .section-title{font-size:26px}
  .section-desc{font-size:14px}
  .solution-inner{grid-template-columns:1fr;gap:16px}
  .solution-img{height:200px}
  .process-grid{grid-template-columns:1fr}
  .scenario-grid{grid-template-columns:1fr}
  .scenario-card.large{grid-column:span 1}
  .scenario-card .scenario-img,.scenario-card.large .scenario-img{height:200px}
  .stats-main{padding:32px 24px}
  .stats-big{font-size:48px}
  .stat-item{grid-template-columns:80px 1fr;padding:20px}
  .stat-item b{font-size:26px}
  .cta-inner{padding:44px 20px}
  .cta-title{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;gap:10px;text-align:center}
  .modal-card{padding:30px 20px 22px}
}
@media (max-width:520px){
  .header-right .btn-sm{padding:8px 14px;font-size:13px}
  .footer-bottom a{display:inline-block;margin:4px 0}
}

/* roulang page: category2 */
:root{
  --bg:#0A0E1A;
  --bg2:#0D1322;
  --bg3:#0F172A;
  --blue:#2E6BFF;
  --blue-dark:#1A3A8F;
  --cyan:#22D3EE;
  --gradient:linear-gradient(135deg,#2E6BFF,#22D3EE);
  --gradient-rev:linear-gradient(135deg,#22D3EE,#2E6BFF);
  --text:#E6EDF7;
  --text2:#98A4BE;
  --text3:#5E6888;
  --link:#6DB4FF;
  --success:#00E57A;
  --warning:#FF9F43;
  --danger:#FF4D67;
  --radius:14px;
  --radius-sm:10px;
  --radius-lg:24px;
  --shadow-btn:0 0 20px rgba(34,211,238,0.25),0 4px 12px rgba(46,107,255,0.3);
  --shadow-card:0 8px 32px rgba(46,107,255,0.15),0 0 0 1px rgba(34,211,238,0.15);
  --shadow-card-hover:0 12px 40px rgba(34,211,238,0.2),0 0 0 1px rgba(34,211,238,0.25);
  --container:1200px;
  --space:96px;
  --font:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea{font-family:inherit;border:none;outline:none}
a:focus-visible,button:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}

/* ===== Header ===== */
.header{position:fixed;top:0;left:0;right:0;z-index:200;height:72px;background:rgba(10,14,26,0.85);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,0.06)}
.header-main{height:72px}
.header-inner{display:flex;align-items:center;height:72px;gap:20px}
.logo{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:800;color:#fff;line-height:1;flex-shrink:0}
.logo-mark{width:34px;height:34px;border-radius:10px;background:var(--gradient);display:flex;align-items:center;justify-content:center;box-shadow:0 0 18px rgba(34,211,238,0.35);flex-shrink:0}
.logo-text{white-space:nowrap}
.logo-text span{color:var(--cyan)}
.nav{display:flex;gap:4px;margin-left:8px;flex:1}
.nav-link{position:relative;padding:8px 14px;color:var(--text2);font-size:15px;font-weight:500;border-radius:8px;transition:color .25s,background .25s;white-space:nowrap}
.nav-link:hover{color:var(--cyan);background:rgba(255,255,255,0.03)}
.nav-link.active{color:#fff;background:rgba(46,107,255,0.12)}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:var(--gradient)}
.header-right{display:flex;align-items:center;gap:14px;flex-shrink:0}
.status-badge{display:inline-flex;align-items:center;gap:7px;padding:6px 14px;border-radius:999px;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.09);font-size:13px;color:#fff}
.status-dot{width:7px;height:7px;border-radius:50%;background:var(--success);box-shadow:0 0 8px rgba(0,229,122,0.6)}
.countdown{display:inline-flex;align-items:center;gap:6px;padding:6px 12px;border-radius:999px;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);font-size:13px;color:var(--text2);font-variant-numeric:tabular-nums}
.countdown b{font-weight:600;color:var(--text)}
.countdown span{color:var(--cyan);font-weight:600}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:14px 28px;font-size:15px;font-weight:600;color:#fff;background:var(--gradient);border-radius:var(--radius-sm);box-shadow:var(--shadow-btn);transition:transform .25s,box-shadow .25s,filter .25s;border:none}
.btn:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(34,211,238,0.4)}
.btn:active{transform:translateY(0);box-shadow:0 0 12px rgba(34,211,238,0.2)}
.btn-sm{padding:9px 20px;font-size:14px;border-radius:8px}
.btn-ghost{background:transparent;border:1px solid rgba(255,255,255,0.25);box-shadow:none}
.btn-ghost:hover{background:rgba(255,255,255,0.06);border-color:rgba(255,255,255,0.5);box-shadow:none}
.nav-toggle{display:none;flex-direction:column;gap:5px;padding:10px;border-radius:8px;width:44px;height:44px;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:22px;height:2px;background:#fff;border-radius:2px;transition:transform .3s,opacity .3s}
.nav-toggle.open span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ===== Hero ===== */
.hero{position:relative;min-height:620px;display:flex;align-items:center;padding:150px 0 90px;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;overflow:hidden}
.hero::before{content:"";position:absolute;inset:0;background:linear-gradient(120deg,rgba(10,14,26,0.94),rgba(10,14,26,0.62));z-index:1}
.hero::after{content:"";position:absolute;top:-20%;right:-8%;width:55%;height:140%;background:repeating-linear-gradient(-60deg,transparent 0 10px,rgba(255,255,255,0.025) 10px 11px);transform:skewX(-14deg);z-index:1}
.hero-back-grid{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:44px 44px;z-index:1}
.hero-inner{position:relative;z-index:2;max-width:780px}
.hero-badge{display:inline-flex;align-items:center;gap:8px;padding:8px 18px;border-radius:999px;background:rgba(46,107,255,0.15);border:1px solid rgba(34,211,238,0.3);color:var(--cyan);font-size:14px;font-weight:600;margin-bottom:24px}
.hero-badge::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 10px rgba(34,211,238,0.7)}
.hero h1{font-size:44px;line-height:1.2;font-weight:800;color:#fff;letter-spacing:0}
.hero h1 em{font-style:normal;color:var(--cyan);text-shadow:0 0 24px rgba(34,211,238,0.45)}
.hero-sub{margin-top:20px;font-size:18px;line-height:1.7;color:var(--text2);max-width:640px}
.hero-actions{display:flex;gap:16px;margin-top:36px;flex-wrap:wrap}
.hero-metrics{display:flex;gap:0;margin-top:56px;padding-top:28px;border-top:1px solid rgba(255,255,255,0.08);flex-wrap:wrap}
.hero-metric{position:relative;padding:0 32px;text-align:left}
.hero-metric:first-child{padding-left:0}
.hero-metric:not(:first-child)::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:1px;background:rgba(255,255,255,0.1)}
.hero-metric b{display:block;font-size:22px;font-weight:800;color:#fff;font-feature-settings:"tnum";letter-spacing:0}
.hero-metric b span{background:var(--gradient);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;filter:drop-shadow(0 0 12px rgba(34,211,238,0.35))}
.hero-metric i{display:block;font-style:normal;font-size:13px;color:var(--text3);margin-top:4px}

/* ===== Section ===== */
.section{padding:var(--space) 0;position:relative}
.section-alt{background:var(--bg2)}
.section-alt2{background:var(--bg3)}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:32px;margin-bottom:56px;flex-wrap:wrap}
.section-title{font-size:32px;line-height:1.3;font-weight:700;color:var(--text);padding-left:18px;position:relative;max-width:720px}
.section-title::before{content:"";position:absolute;left:0;top:8px;width:4px;height:28px;border-radius:4px;background:var(--gradient)}
.section-desc{margin-top:14px;color:var(--text2);font-size:15px;line-height:1.7;max-width:640px}
.section-more{color:var(--link);font-size:14px;white-space:nowrap;display:inline-flex;align-items:center;gap:6px;transition:color .25s}
.section-more:hover{color:var(--cyan)}

/* ===== Feature list ===== */
.feature-list{border-top:1px solid rgba(255,255,255,0.06)}
.feature-row{display:flex;align-items:flex-start;gap:20px;padding:24px 8px;border-bottom:1px solid rgba(255,255,255,0.06);transition:background .25s}
.feature-row:hover{background:rgba(255,255,255,0.02)}
.feature-num{font-size:14px;font-weight:700;color:var(--cyan);font-feature-settings:"tnum";padding-top:4px;min-width:32px;opacity:0.8}
.feature-row h3{font-size:18px;font-weight:600;color:var(--text);margin-bottom:6px}
.feature-row p{font-size:14px;color:var(--text2);line-height:1.7;max-width:880px}

/* ===== Course blocks ===== */
.course-block{position:relative;display:grid;grid-template-columns:1.05fr 0.95fr;gap:40px;align-items:center;padding:48px;border-radius:20px;background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.08);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);box-shadow:0 8px 32px rgba(0,0,0,0.25);margin-bottom:28px;transition:border-color .3s,box-shadow .3s;overflow:hidden}
.course-block::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.18),transparent)}
.course-block::after{content:"";position:absolute;top:0;left:0;width:110px;height:110px;border-radius:50%;background:radial-gradient(circle,rgba(34,211,238,0.08),transparent 70%);pointer-events:none}
.course-block:hover{border-color:rgba(34,211,238,0.25);box-shadow:var(--shadow-card)}
.course-block.reverse .course-media{order:2}
.course-content h3{font-size:26px;font-weight:700;color:#fff;margin-bottom:12px}
.course-content h3 em{font-style:normal;color:var(--cyan)}
.course-content .course-tag{display:inline-block;padding:4px 12px;border-radius:999px;background:rgba(46,107,255,0.15);border:1px solid rgba(46,107,255,0.25);color:var(--link);font-size:12px;font-weight:600;margin-bottom:16px}
.course-content p{font-size:15px;color:var(--text2);line-height:1.75;margin-bottom:18px}
.course-list{display:grid;gap:10px;margin-bottom:20px}
.course-list li{position:relative;padding-left:22px;font-size:14px;color:var(--text2);line-height:1.7}
.course-list li::before{content:"";position:absolute;left:0;top:9px;width:8px;height:8px;border-radius:50%;background:var(--cyan);box-shadow:0 0 8px rgba(34,211,238,0.4)}
.course-link{display:inline-flex;align-items:center;gap:8px;color:var(--link);font-size:14px;font-weight:600;transition:color .25s,gap .25s}
.course-link:hover{color:var(--cyan);gap:12px}
.course-media{position:relative;border-radius:16px;overflow:hidden;border:1px solid rgba(255,255,255,0.08)}
.course-media img{width:100%;height:280px;object-fit:cover}
.course-media .media-mask{position:absolute;inset:0;background:linear-gradient(180deg,transparent 40%,rgba(10,14,26,0.55));pointer-events:none}

/* ===== Audience ===== */
.audience-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.audience-card{position:relative;padding:36px 28px;border-radius:var(--radius);background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);transition:border-color .3s,transform .3s,box-shadow .3s;overflow:hidden}
.audience-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.16),transparent)}
.audience-card::after{content:"";position:absolute;top:0;left:0;width:80px;height:80px;border-radius:50%;background:radial-gradient(circle,rgba(46,107,255,0.12),transparent 70%)}
.audience-card:hover{transform:translateY(-4px);border-color:rgba(34,211,238,0.25);box-shadow:var(--shadow-card-hover)}
.audience-icon{width:52px;height:52px;border-radius:14px;background:var(--gradient);display:flex;align-items:center;justify-content:center;margin-bottom:20px;box-shadow:0 0 20px rgba(34,211,238,0.25)}
.audience-card h3{font-size:20px;font-weight:600;color:#fff;margin-bottom:8px}
.audience-card p{font-size:14px;color:var(--text2);line-height:1.7}

/* ===== Process ===== */
.process-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:process}
.process-step{position:relative;padding:36px 24px;border-radius:var(--radius);background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);-webkit-backdrop-filter:blur(16px);backdrop-filter:blur(16px);transition:border-color .3s,transform .3s}
.process-step:hover{border-color:rgba(34,211,238,0.3);transform:translateY(-4px)}
.process-step::before{counter-increment:process;content:"0" counter(process);position:absolute;top:22px;right:22px;font-size:32px;font-weight:800;font-feature-settings:"tnum";background:var(--gradient);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;opacity:0.25}
.process-step h3{font-size:18px;font-weight:600;color:#fff;margin-bottom:10px;padding-right:50px}
.process-step p{font-size:14px;color:var(--text2);line-height:1.7}

/* ===== Stats ===== */
.stats-grid{display:grid;grid-template-columns:1.2fr 1fr 1fr 1fr;gap:24px;align-items:stretch}
.stat-main{grid-row:span 2;padding:48px 36px;border-radius:20px;background:rgba(255,255,255,0.05);border:1px solid rgba(255,255,255,0.09);position:relative;overflow:hidden;display:flex;flex-direction:column;justify-content:center}
.stat-main::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.25),transparent)}
.stat-main::after{content:"";position:absolute;right:-40px;bottom:-40px;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,rgba(46,107,255,0.2),transparent 70%)}
.stat-main b{font-size:68px;font-weight:800;line-height:1.05;background:var(--gradient);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;filter:drop-shadow(0 0 30px rgba(34,211,238,0.3));font-feature-settings:"tnum"}
.stat-main .stat-label{font-size:18px;font-weight:600;color:#fff;margin-top:18px}
.stat-main p{font-size:14px;color:var(--text3);margin-top:8px;line-height:1.7;max-width:280px}
.stat-item{padding:32px 28px;border-radius:16px;background:rgba(255,255,255,0.04);border:1px solid rgba(255,255,255,0.08);position:relative;transition:border-color .3s}
.stat-item:hover{border-color:rgba(34,211,238,0.25)}
.stat-item b{display:block;font-size:32px;font-weight:800;color:#fff;font-feature-settings:"tnum";margin-bottom:6px}
.stat-item b span{background:var(--gradient);-webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent}
.stat-item i{font-style:normal;font-size:14px;font-weight:600;color:var(--text)}
.stat-item p{font-size:13px;color:var(--text3);margin-top:6px;line-height:1.6}

/* ===== FAQ ===== */
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{background:rgba(255,255,255,0.03);border:1px solid rgba(255,255,255,0.07);border-radius:12px;margin-bottom:14px;overflow:hidden;transition:border-color .3s,background .3s}
.faq-item.open{background:rgba(255,255,255,0.05);border-color:rgba(34,211,238,0.25)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 22px;font-size:16px;font-weight:600;color:var(--text);cursor:pointer;text-align:left;width:100%;line-height:1.5}
.faq-q .icon{width:22px;height:22px;flex-shrink:0;position:relative;border-radius:50%;border:1px solid rgba(255,255,255,0.25);transition:transform .35s,border-color .3s}
.faq-q .icon::before,.faq-q .icon::after{content:"";position:absolute;top:50%;left:50%;width:10px;height:1.6px;background:var(--cyan);transform:translate(-50%,-50%)}
.faq-q .icon::after{transform:translate(-50%,-50%) rotate(90deg);transition:transform .35s}
.faq-item.open .faq-q .icon{transform:rotate(45deg);border-color:var(--cyan)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-a-inner{padding:0 22px 20px;font-size:14px;color:var(--text2);line-height:1.75}
.faq-item.open .faq-a{max-height:360px}

/* ===== CTA ===== */
.cta-section{position:relative;padding:100px 0;background:url('/assets/images/backpic/back-1.webp') center/cover no-repeat;overflow:hidden}
.cta-section::before{content:"";position:absolute;inset:0;background:rgba(10,14,26,0.86);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.cta-section::after{content:"";position:absolute;top:0;right:-10%;width:45%;height:100%;background:repeating-linear-gradient(-55deg,transparent 0 12px,rgba(255,255,255,0.02) 12px 13px);transform:skewX(-14deg)}
.cta-card{position:relative;z-index:2;max-width:880px;margin:0 auto;text-align:center;padding:64px 56px;border-radius:var(--radius-lg);background:linear-gradient(135deg,rgba(255,255,255,0.06),rgba(255,255,255,0.02));border:1px solid rgba(255,255,255,0.12);-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px)}
.cta-card::before{content:"";position:absolute;inset:0;padding:1px;border-radius:var(--radius-lg);background:var(--gradient);-webkit-mask:linear-gradient(#fff 0 0) content-box,linear-gradient(#fff 0 0);-webkit-mask-composite:xor;mask-composite:exclude;opacity:0.5;pointer-events:none}
.cta-card h2{font-size:30px;font-weight:800;color:#fff;margin-bottom:14px}
.cta-card p{font-size:15px;color:var(--text2);margin-bottom:30px;max-width:560px;margin-left:auto;margin-right:auto}
.cta-card .btn{padding:16px 38px;font-size:16px}

/* ===== Footer ===== */
.footer{background:#070B14;border-top:1px solid rgba(255,255,255,0.06);padding:64px 0 28px;position:relative;overflow:hidden}
.footer::before{content:"";position:absolute;bottom:0;left:0;right:0;height:2px;background:linear-gradient(90deg,transparent,rgba(34,211,238,0.4),rgba(46,107,255,0.4),transparent)}
.footer::after{content:"";position:absolute;bottom:10px;right:0;width:50%;height:80px;background:repeating-linear-gradient(-60deg,transparent 0 16px,rgba(255,255,255,0.015) 16px 17px);pointer-events:none}
.footer-grid{display:grid;grid-template-columns:1.4fr 0.8fr 0.8fr 1fr;gap:48px;margin-bottom:48px}
.footer-brand .logo{margin-bottom:16px}
.footer-desc{font-size:14px;color:var(--text3);line-height:1.75;max-width:320px;margin-top:14px}
.footer-title{font-size:16px;font-weight:600;color:#fff;margin-bottom:18px}
.footer-links{display:grid;gap:10px}
.footer-links a{font-size:14px;color:var(--text2);transition:color .25s,padding-left .25s}
.footer-links a:hover{color:var(--cyan);padding-left:4px}
.footer-contact{display:grid;gap:12px}
.footer-contact li{font-size:14px;color:var(--text2);line-height:1.6}
.footer-contact .label{display:block;font-size:12px;color:var(--text3);margin-bottom:1px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;gap:16px;padding-top:24px;border-top:1px solid rgba(255,255,255,0.06);font-size:13px;color:var(--text3);flex-wrap:wrap}
.footer-bottom a{color:var(--text3);transition:color .25s}
.footer-bottom a:hover{color:var(--cyan)}
.sep{margin:0 8px;opacity:0.5}

/* ===== Modal ===== */
.modal{position:fixed;inset:0;z-index:300;display:none;align-items:center;justify-content:center;padding:20px;background:rgba(0,0,0,0.6);-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px)}
.modal.open{display:flex}
.modal-card{position:relative;width:100%;max-width:430px;background:rgba(13,19,34,0.96);border:1px solid rgba(255,255,255,0.12);border-radius:16px;padding:36px 32px 28px;box-shadow:0 24px 80px rgba(0,0,0,0.5)}
.modal-card::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(255,255,255,0.25),transparent)}
.modal-close{position:absolute;top:14px;right:14px;width:36px;height:36px;border-radius:50%;display:flex;align-items:center;justify-content:center;font-size:20px;color:var(--text3);transition:color .25s,background .25s}
.modal-close:hover{color:#fff;background:rgba(255,255,255,0.08)}
.modal-card h3{font-size:22px;font-weight:700;color:#fff;text-align:center;margin-bottom:8px}
.modal-sub{font-size:13px;color:var(--text3);text-align:center;margin-bottom:24px}
.form-group{margin-bottom:16px}
.form-group input,.form-group textarea{width:100%;padding:12px 14px;border-radius:8px;background:rgba(255,255,255,0.06);border:1px solid rgba(255,255,255,0.1);color:#fff;font-size:15px;transition:border-color .3s,box-shadow .3s}
.form-group textarea{min-height:84px;resize:vertical}
.form-group input::placeholder,.form-group textarea::placeholder{color:var(--text3)}
.form-group input:focus,.form-group textarea:focus{border-color:var(--cyan);box-shadow:0 0 0 3px rgba(34,211,238,0.15)}
.modal-submit{width:100%;padding:14px;font-size:15px;font-weight:600;color:#fff;background:var(--gradient);border-radius:8px;box-shadow:var(--shadow-btn);margin-top:8px;transition:transform .25s,box-shadow .25s}
.modal-submit:hover{transform:translateY(-2px);box-shadow:0 0 40px rgba(34,211,238,0.4)}
.modal-submit:active{transform:translateY(0)}
.privacy-line{display:flex;align-items:flex-start;gap:8px;margin-top:16px;font-size:13px;color:var(--text3);line-height:1.6;text-align:left}
.privacy-line input{margin-top:4px}
.privacy-line a{color:var(--link)}
.privacy-line a:hover{color:var(--cyan)}
.modal-privacy-note{margin-top:16px;padding-top:14px;border-top:1px solid rgba(255,255,255,0.07);font-size:12px;color:var(--text3);line-height:1.6;text-align:center}

/* ===== Responsive ===== */
@media (max-width:1024px){
  :root{--space:64px}
  .nav{display:none;position:absolute;top:72px;left:0;right:0;background:rgba(10,14,26,0.98);-webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);border-bottom:1px solid rgba(255,255,255,0.08);flex-direction:column;padding:16px 24px 24px;gap:4px}
  .nav.open{display:flex}
  .nav-link{padding:12px 14px;font-size:16px}
  .nav-link.active::after{display:none}
  .nav-link.active{background:rgba(46,107,255,0.12)}
  .nav-toggle{display:flex}
  .countdown{display:none}
  .hero{min-height:560px;padding:120px 0 70px}
  .hero h1{font-size:36px}
  .hero-sub{font-size:16px}
  .hero-metrics{gap:20px}
  .hero-metric{padding:0 20px}
  .hero-metric:first-child{padding-left:0}
  .course-block{grid-template-columns:1fr;padding:32px}
  .course-block.reverse .course-media{order:0}
  .course-media img{height:220px}
  .audience-grid{grid-template-columns:repeat(2,1fr)}
  .process-grid{grid-template-columns:repeat(2,1fr)}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .stat-main{grid-row:auto}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  .header,.header-main,.header-inner{height:56px}
  .header-inner{gap:12px}
  .nav{top:56px}
  .logo-text{font-size:18px}
  .status-badge{display:none}
  .hero{padding:100px 0 56px;min-height:auto}
  .hero h1{font-size:32px;line-height:1.25}
  .hero-sub{font-size:15px;margin-top:16px}
  .hero-actions{flex-direction:column;width:100%}
  .hero-actions .btn{width:100%}
  .hero-metrics{margin-top:36px;padding-top:20px;flex-wrap:wrap;gap:16px}
  .hero-metric{padding:0 16px}
  .hero-metric:first-child{padding-left:0}
  .hero-metric b{font-size:20px}
  .section-title{font-size:27px}
  .section-head{margin-bottom:36px}
  .course-block{padding:24px}
  .course-block .course-content h3{font-size:22px}
  .course-media img{height:180px}
  .audience-grid{grid-template-columns:1fr}
  .process-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr}
  .stat-main b{font-size:52px}
  .cta-card{padding:40px 24px}
  .cta-card h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr;gap:32px}
  .footer-bottom{flex-direction:column;text-align:center}
  .faq-q{font-size:15px;padding:16px}
  .faq-a-inner{padding:0 16px 18px;font-size:14px}
}
@media (max-width:520px){
  :root{--space:48px}
  .container{padding:0 16px}
  .btn-sm{padding:9px 16px}
  .hero-inner{padding-top:8px}
  .hero-metric{padding:0 12px}
}

/* roulang page: category3 */
:root {
            --bg-primary: #0A0E1A;
            --bg-secondary: #0D1322;
            --bg-tertiary: #0F172A;
            --bg-card: rgba(255, 255, 255, 0.035);
            --bg-card-hover: rgba(255, 255, 255, 0.055);
            --border-card: rgba(255, 255, 255, 0.08);
            --border-hover: rgba(34, 211, 238, 0.25);
            --blue: #2E6BFF;
            --blue-dark: #1A3A8F;
            --cyan: #22D3EE;
            --gradient: linear-gradient(135deg, #2E6BFF, #22D3EE);
            --text-title: #E6EDF7;
            --text-body: #98A4BE;
            --text-muted: #5E6888;
            --text-link: #6DB4FF;
            --success: #00E57A;
            --warning: #FF9F43;
            --error: #FF4D67;
            --radius: 14px;
            --radius-sm: 8px;
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.28);
            --shadow-btn: 0 0 20px rgba(34, 211, 238, 0.25), 0 4px 12px rgba(46, 107, 255, 0.3);
            --shadow-hover: 0 8px 32px rgba(46, 107, 255, 0.15), 0 0 0 1px rgba(34, 211, 238, 0.15);
            --header-h: 72px;
            --container-w: 1200px;
            --section-space: 96px;
        }
        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
            background: var(--bg-primary);
            color: var(--text-body);
            line-height: 1.7;
            font-size: 15px;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            color: var(--text-link);
            text-decoration: none;
            transition: color .2s ease;
        }
        a:hover {
            color: var(--cyan);
        }
        ul,
        ol {
            list-style: none;
        }
        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            color: inherit;
        }
        .container {
            max-width: var(--container-w);
            margin: 0 auto;
            padding: 0 24px;
        }
        @media (max-width: 768px) {
            .container {
                padding: 0 16px;
            }
        }

        /* ===== Header ===== */
        .header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 14, 26, 0.72);
            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;
        }
        .header.scrolled {
            background: rgba(10, 14, 26, 0.88);
            box-shadow: 0 8px 30px rgba(0, 0, 0, 0.35);
        }
        .header-main {
            height: var(--header-h);
        }
        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
            gap: 20px;
        }
        .logo {
            display: flex;
            align-items: center;
            gap: 10px;
            flex-shrink: 0;
        }
        .logo-mark {
            display: flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            border-radius: 10px;
            background: linear-gradient(135deg, rgba(46, 107, 255, 0.25), rgba(34, 211, 238, 0.18));
            border: 1px solid rgba(34, 211, 238, 0.3);
            box-shadow: 0 0 14px rgba(34, 211, 238, 0.2);
        }
        .logo-text {
            font-size: 20px;
            font-weight: 800;
            color: #fff;
            letter-spacing: -0.5px;
        }
        .logo-text span {
            color: var(--cyan);
        }
        .nav {
            display: flex;
            align-items: center;
            gap: 6px;
        }
        .nav-link {
            padding: 8px 16px;
            font-size: 15px;
            font-weight: 500;
            color: var(--text-body);
            border-radius: 8px;
            position: relative;
            transition: color .2s ease, background .2s ease;
        }
        .nav-link:hover {
            color: var(--cyan);
            background: rgba(255, 255, 255, 0.04);
        }
        .nav-link.active {
            color: var(--cyan);
        }
        .nav-link.active::after {
            content: '';
            position: absolute;
            left: 16px;
            right: 16px;
            bottom: 2px;
            height: 2px;
            border-radius: 2px;
            background: var(--gradient);
            box-shadow: 0 0 8px rgba(34, 211, 238, 0.5);
        }
        .header-right {
            display: flex;
            align-items: center;
            gap: 12px;
        }
        .status-badge {
            display: inline-flex;
            align-items: center;
            gap: 7px;
            padding: 6px 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.1);
            font-size: 12px;
            color: var(--text-title);
            white-space: nowrap;
        }
        .status-dot {
            width: 7px;
            height: 7px;
            border-radius: 50%;
            background: var(--success);
            box-shadow: 0 0 8px rgba(0, 229, 122, 0.8);
            animation: pulse-dot 2s ease-in-out infinite;
        }
        @keyframes pulse-dot {
            0%,
            100% {
                opacity: 1;
                transform: scale(1);
            }
            50% {
                opacity: 0.6;
                transform: scale(0.8);
            }
        }
        .countdown {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 5px 12px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 12px;
            color: var(--text-muted);
            white-space: nowrap;
        }
        .countdown b {
            color: var(--text-body);
            font-weight: 600;
        }
        .countdown span {
            font-family: "SF Mono", "Roboto Mono", monospace;
            font-variant-numeric: tabular-nums;
            color: var(--cyan);
            font-weight: 700;
        }
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            padding: 14px 28px;
            border-radius: 10px;
            font-size: 15px;
            font-weight: 600;
            transition: all .25s ease;
            border: none;
            white-space: nowrap;
        }
        .btn-sm {
            padding: 9px 20px;
            font-size: 14px;
            border-radius: 8px;
        }
        .btn-primary {
            background: var(--gradient);
            color: #fff;
            box-shadow: var(--shadow-btn);
        }
        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 0 40px rgba(34, 211, 238, 0.4), 0 6px 18px rgba(46, 107, 255, 0.35);
            color: #fff;
        }
        .btn-primary:active {
            transform: translateY(0);
            box-shadow: 0 0 10px rgba(34, 211, 238, 0.2);
        }
        .btn-ghost {
            background: transparent;
            border: 1px solid rgba(255, 255, 255, 0.25);
            color: var(--text-title);
        }
        .btn-ghost:hover {
            background: rgba(255, 255, 255, 0.06);
            border-color: rgba(255, 255, 255, 0.5);
            color: #fff;
        }
        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 8px;
            border-radius: 6px;
        }
        .nav-toggle span {
            display: block;
            width: 22px;
            height: 2px;
            background: var(--text-title);
            border-radius: 2px;
            transition: transform .3s ease, opacity .3s ease;
        }
        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ===== Hero ===== */
        .hero {
            position: relative;
            min-height: 380px;
            padding: 150px 0 64px;
            display: flex;
            align-items: center;
            overflow: hidden;
            background: var(--bg-secondary);
        }
        .hero-bg {
            position: absolute;
            inset: 0;
            background-size: cover;
            background-position: center;
            opacity: 0.4;
            z-index: 0;
        }
        .hero-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(120deg, rgba(10, 14, 26, 0.95), rgba(10, 14, 26, 0.55));
            z-index: 1;
        }
        .grid-overlay {
            position: absolute;
            inset: 0;
            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: 42px 42px;
            z-index: 1;
        }
        .speed-line {
            position: absolute;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.3), transparent);
            transform: rotate(-18deg);
            z-index: 2;
            border-radius: 2px;
        }
        .speed-line.line-1 {
            top: 18%;
            right: -5%;
            width: 46%;
        }
        .speed-line.line-2 {
            top: 64%;
            right: 2%;
            width: 32%;
            opacity: 0.6;
        }
        .hero-content {
            position: relative;
            z-index: 3;
            max-width: 850px;
        }
        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 7px 16px;
            border-radius: 999px;
            background: rgba(46, 107, 255, 0.15);
            border: 1px solid rgba(46, 107, 255, 0.3);
            font-size: 13px;
            color: var(--text-link);
            font-weight: 500;
            margin-bottom: 24px;
        }
        .badge-dot {
            width: 6px;
            height: 6px;
            border-radius: 50%;
            background: var(--cyan);
            box-shadow: 0 0 8px rgba(34, 211, 238, 0.8);
        }
        .hero h1 {
            font-size: 46px;
            line-height: 1.2;
            font-weight: 800;
            color: var(--text-title);
            margin-bottom: 20px;
            letter-spacing: -0.5px;
        }
        .hero h1 .highlight {
            color: var(--cyan);
            text-shadow: 0 0 18px rgba(34, 211, 238, 0.4);
        }
        .hero-subtitle {
            font-size: 18px;
            line-height: 1.7;
            color: var(--text-body);
            max-width: 640px;
            margin-bottom: 32px;
        }
        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        /* ===== Section common ===== */
        .section {
            padding: var(--section-space) 0;
            position: relative;
        }
        @media (max-width: 768px) {
            .section {
                padding: 56px 0;
            }
        }
        .section-bg-alt {
            background: var(--bg-secondary);
        }
        .section-bg-dark {
            background: var(--bg-tertiary);
        }
        .section-head {
            max-width: 720px;
            margin-bottom: 52px;
        }
        .section-head h2 {
            font-size: 32px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-title);
            padding-left: 18px;
            position: relative;
            letter-spacing: -0.3px;
        }
        .section-head h2::before {
            content: '';
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            border-radius: 4px;
            background: var(--gradient);
            box-shadow: 0 0 12px rgba(34, 211, 238, 0.4);
        }
        .section-head p {
            margin-top: 16px;
            font-size: 15px;
            color: var(--text-body);
            max-width: 620px;
        }

        /* ===== Glass card ===== */
        .glass-card {
            position: relative;
            border-radius: var(--radius);
            border: 1px solid var(--border-card);
            background: var(--bg-card);
            backdrop-filter: blur(16px);
            -webkit-backdrop-filter: blur(16px);
            overflow: hidden;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }
        .glass-card::before {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: inherit;
            padding: 1px;
            background: linear-gradient(135deg, rgba(255, 255, 255, 0.16), transparent 45%);
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }
        .glass-card::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 140px;
            height: 90px;
            background: radial-gradient(circle, rgba(255, 255, 255, 0.07), transparent 70%);
            border-radius: var(--radius) 0 0 0;
            pointer-events: none;
        }
        .glass-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: var(--border-hover);
        }

        /* ===== Values ===== */
        .value-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
        }
        .value-card {
            padding: 32px 28px;
        }
        .value-icon {
            width: 52px;
            height: 52px;
            border-radius: 13px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 20px;
            color: var(--cyan);
            background: rgba(46, 107, 255, 0.12);
            border: 1px solid rgba(34, 211, 238, 0.2);
            margin-bottom: 20px;
            box-shadow: 0 0 18px rgba(34, 211, 238, 0.1);
        }
        .value-card h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 12px;
            line-height: 1.4;
        }
        .value-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-body);
        }

        /* ===== Scenarios ===== */
        .scenario-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 24px;
        }
        .scenario-card {
            padding: 30px 28px;
            display: flex;
            gap: 22px;
            align-items: flex-start;
        }
        .scenario-icon {
            flex-shrink: 0;
            width: 48px;
            height: 48px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 18px;
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid rgba(34, 211, 238, 0.18);
        }
        .scenario-body h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 8px;
            line-height: 1.4;
        }
        .scenario-body p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-body);
        }

        /* ===== Process ===== */
        .process-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            counter-reset: process-counter;
        }
        .process-card {
            padding: 36px 28px 32px;
            text-align: left;
            position: relative;
        }
        .process-num {
            font-size: 42px;
            font-weight: 800;
            line-height: 1;
            font-variant-numeric: tabular-nums;
            background: var(--gradient);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
            display: block;
            margin-bottom: 18px;
            text-shadow: none;
        }
        .process-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 10px;
        }
        .process-card p {
            font-size: 14px;
            line-height: 1.7;
            color: var(--text-body);
        }

        /* ===== Cases ===== */
        .case-grid {
            display: grid;
            grid-template-columns: 7fr 5fr;
            gap: 24px;
            margin-bottom: 40px;
        }
        .case-large {
            display: flex;
            flex-direction: column;
            min-height: 420px;
        }
        .case-cover {
            height: 240px;
            overflow: hidden;
            position: relative;
            border-radius: var(--radius) var(--radius) 0 0;
        }
        .case-cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .6s ease;
        }
        .case-large:hover .case-cover img {
            transform: scale(1.05);
        }
        .case-tag {
            position: absolute;
            top: 16px;
            left: 16px;
            padding: 5px 14px;
            border-radius: 999px;
            background: rgba(46, 107, 255, 0.2);
            border: 1px solid rgba(46, 107, 255, 0.35);
            color: #fff;
            font-size: 12px;
            font-weight: 500;
            backdrop-filter: blur(8px);
        }
        .case-body {
            padding: 26px 28px 28px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }
        .case-body h3 {
            font-size: 22px;
            font-weight: 700;
            color: var(--text-title);
            margin-bottom: 12px;
            line-height: 1.3;
        }
        .case-summary {
            font-size: 14px;
            color: var(--text-body);
            line-height: 1.7;
            margin-bottom: 20px;
            flex: 1;
        }
        .case-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding-top: 16px;
        }
        .case-time {
            font-size: 13px;
            color: var(--text-muted);
            font-variant-numeric: tabular-nums;
        }
        .case-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--text-link);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .2s ease;
        }
        .case-link:hover {
            color: var(--cyan);
            gap: 10px;
        }
        .case-stack {
            display: grid;
            grid-template-rows: 1fr 1fr;
            gap: 24px;
        }
        .case-small {
            display: flex;
            gap: 16px;
            padding: 18px;
            align-items: center;
        }
        .case-cover-sm {
            width: 110px;
            height: 88px;
            border-radius: 10px;
            overflow: hidden;
            flex-shrink: 0;
        }
        .case-cover-sm img {
            width: 100%;
            height: 100%;
            object-fit: cover;
        }
        .case-body-sm {
            flex: 1;
            min-width: 0;
        }
        .case-body-sm h3 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 6px;
            line-height: 1.4;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .case-body-sm .case-summary {
            font-size: 13px;
            margin-bottom: 6px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }

        /* ===== Pagination ===== */
        .pagination {
            display: flex;
            gap: 8px;
            justify-content: center;
            flex-wrap: wrap;
        }
        .page-link {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            min-width: 42px;
            height: 42px;
            padding: 0 14px;
            border-radius: 999px;
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            font-size: 14px;
            font-weight: 600;
            color: var(--text-body);
            transition: all .25s ease;
        }
        .page-link:hover {
            color: var(--cyan);
            border-color: rgba(34, 211, 238, 0.3);
        }
        .page-link.active {
            background: var(--gradient);
            color: #fff;
            border-color: transparent;
            box-shadow: 0 0 18px rgba(34, 211, 238, 0.3);
        }

        /* ===== FAQ ===== */
        .faq-wrap {
            max-width: 900px;
            margin: 0 auto;
        }
        .faq-item {
            margin-bottom: 14px;
            border-radius: 12px;
            background: rgba(255, 255, 255, 0.03);
            border: 1px solid rgba(255, 255, 255, 0.06);
            transition: background .3s ease, border-color .3s ease;
        }
        .faq-item.open {
            background: rgba(255, 255, 255, 0.05);
            border-color: rgba(34, 211, 238, 0.25);
            box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
        }
        .faq-question {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            width: 100%;
            padding: 18px 22px;
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            text-align: left;
            background: transparent;
            border-radius: 12px;
            transition: color .2s ease;
        }
        .faq-question:hover {
            color: var(--cyan);
        }
        .faq-question .faq-icon {
            flex-shrink: 0;
            width: 28px;
            height: 28px;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 13px;
            color: var(--cyan);
            background: rgba(34, 211, 238, 0.1);
            border: 1px solid rgba(34, 211, 238, 0.2);
            transition: transform .3s ease;
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height .35s ease;
        }
        .faq-answer-inner {
            padding: 0 22px 20px;
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-body);
            border-left: 4px solid var(--cyan);
            border-radius: 0 0 0 8px;
            margin-left: 22px;
            padding-left: 20px;
        }

        /* ===== CTA ===== */
        .cta-section {
            padding: 80px 0;
        }
        .cta-card {
            position: relative;
            border-radius: 22px;
            padding: 64px 40px;
            text-align: center;
            overflow: hidden;
            border: 1px solid rgba(34, 211, 238, 0.2);
            background: linear-gradient(135deg, rgba(46, 107, 255, 0.12), rgba(34, 211, 238, 0.08)), rgba(255, 255, 255, 0.03);
            backdrop-filter: blur(20px);
        }
        .cta-card::before {
            content: '';
            position: absolute;
            inset: 0;
            border-radius: inherit;
            padding: 1px;
            background: linear-gradient(125deg, rgba(34, 211, 238, 0.5), transparent 40%, rgba(46, 107, 255, 0.4));
            -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
            -webkit-mask-composite: xor;
            mask-composite: exclude;
            pointer-events: none;
        }
        .cta-card h2 {
            font-size: 30px;
            font-weight: 800;
            color: #fff;
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }
        .cta-card p {
            font-size: 16px;
            color: var(--text-body);
            margin-bottom: 32px;
            max-width: 480px;
            margin-left: auto;
            margin-right: auto;
        }
        .cta-card .btn-primary {
            padding: 16px 40px;
            font-size: 16px;
        }

        /* ===== Footer ===== */
        .footer {
            background: #070B14;
            border-top: 1px solid rgba(255, 255, 255, 0.06);
            padding: 64px 0 24px;
            position: relative;
            overflow: hidden;
        }
        .footer::before {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 1px;
            background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.2), transparent);
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr 1fr 1.2fr;
            gap: 40px;
            margin-bottom: 40px;
        }
        .footer .logo {
            margin-bottom: 16px;
        }
        .footer-desc {
            font-size: 14px;
            line-height: 1.75;
            color: var(--text-muted);
            max-width: 300px;
            margin-top: 14px;
        }
        .footer-title {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-title);
            margin-bottom: 18px;
        }
        .footer-links {
            display: flex;
            flex-direction: column;
            gap: 12px;
        }
        .footer-links a {
            font-size: 14px;
            color: var(--text-body);
            transition: color .2s ease;
        }
        .footer-links a:hover {
            color: var(--cyan);
        }
        .footer-contact li {
            display: flex;
            gap: 10px;
            font-size: 14px;
            color: var(--text-body);
            margin-bottom: 12px;
            align-items: flex-start;
        }
        .footer-contact .label {
            color: var(--text-muted);
            flex-shrink: 0;
            min-width: 32px;
        }
        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, 0.05);
            padding-top: 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
            font-size: 13px;
            color: var(--text-muted);
        }
        .footer-bottom a {
            color: var(--text-muted);
            margin: 0 4px;
        }
        .footer-bottom a:hover {
            color: var(--cyan);
        }
        .footer-bottom .sep {
            margin: 0 4px;
            opacity: 0.4;
        }

        /* ===== Modal ===== */
        .modal-overlay {
            position: fixed;
            inset: 0;
            z-index: 2000;
            display: flex;
            align-items: center;
            justify-content: center;
            padding: 20px;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(4px);
            -webkit-backdrop-filter: blur(4px);
            opacity: 0;
            visibility: hidden;
            transition: opacity .3s ease, visibility .3s ease;
        }
        .modal-overlay.open {
            opacity: 1;
            visibility: visible;
        }
        .modal-card {
            width: 100%;
            max-width: 430px;
            background: rgba(15, 20, 32, 0.95);
            border: 1px solid rgba(255, 255, 255, 0.12);
            border-radius: 16px;
            padding: 40px 36px 30px;
            position: relative;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
            transform: translateY(20px) scale(0.97);
            transition: transform .35s ease;
        }
        .modal-overlay.open .modal-card {
            transform: translateY(0) scale(1);
        }
        .modal-close {
            position: absolute;
            top: 16px;
            right: 16px;
            width: 32px;
            height: 32px;
            border-radius: 8px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 16px;
            color: var(--text-muted);
            background: rgba(255, 255, 255, 0.04);
            border: 1px solid rgba(255, 255, 255, 0.08);
            transition: all .2s ease;
        }
        .modal-close:hover {
            color: #fff;
            background: rgba(255, 255, 255, 0.08);
            border-color: rgba(255, 255, 255, 0.2);
        }
        .modal-card h3 {
            font-size: 20px;
            font-weight: 700;
            color: #fff;
            text-align: center;
            margin-bottom: 8px;
        }
        .modal-subtitle {
            font-size: 13px;
            color: var(--text-muted);
            text-align: center;
            margin-bottom: 28px;
        }
        .modal-form .form-group {
            margin-bottom: 16px;
        }
        .modal-form label {
            display: block;
            font-size: 13px;
            color: var(--text-body);
            margin-bottom: 6px;
        }
        .modal-form input,
        .modal-form textarea {
            width: 100%;
            padding: 12px 14px;
            border-radius: 8px;
            border: 1px solid rgba(255, 255, 255, 0.1);
            background: rgba(255, 255, 255, 0.06);
            color: var(--text-title);
            font-size: 14px;
            font-family: inherit;
            transition: border-color .2s ease, box-shadow .2s ease;
            outline: none;
        }
        .modal-form input::placeholder,
        .modal-form textarea::placeholder {
            color: rgba(94, 104, 136, 0.6);
        }
        .modal-form input:focus,
        .modal-form textarea:focus {
            border-color: var(--cyan);
            box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
        }
        .modal-form textarea {
            height: 100px;
            resize: vertical;
        }
        .modal-form .btn-primary {
            width: 100%;
            padding: 14px;
            font-size: 15px;
            margin-top: 8px;
        }
        .privacy-check {
            display: flex;
            align-items: flex-start;
            gap: 8px;
            margin-top: 14px;
            font-size: 12px;
            color: var(--text-muted);
        }
        .privacy-check input {
            margin-top: 3px;
            accent-color: var(--cyan);
        }
        .privacy-check a {
            color: var(--text-link);
        }
        .modal-privacy-note {
            font-size: 12px;
            color: rgba(94, 104, 136, 0.7);
            text-align: center;
            margin-top: 18px;
            padding-top: 16px;
            border-top: 1px solid rgba(255, 255, 255, 0.05);
        }

        /* ===== Responsive ===== */
        @media (max-width: 1024px) {
            .value-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .process-grid {
                grid-template-columns: repeat(2, 1fr);
            }
            .case-grid {
                grid-template-columns: 1fr;
            }
            .case-stack {
                grid-template-rows: none;
                grid-template-columns: 1fr 1fr;
            }
        }
        @media (max-width: 768px) {
            :root {
                --header-h: 56px;
                --section-space: 48px;
            }
            .header-right .status-badge,
            .header-right .countdown {
                display: none;
            }
            .nav {
                position: fixed;
                top: var(--header-h);
                left: 0;
                right: 0;
                flex-direction: column;
                align-items: flex-start;
                padding: 16px 24px;
                background: rgba(10, 14, 26, 0.96);
                backdrop-filter: blur(20px);
                border-bottom: 1px solid rgba(255, 255, 255, 0.06);
                display: none;
                gap: 8px;
                box-shadow: 0 16px 40px rgba(0, 0, 0, 0.4);
            }
            .nav.open {
                display: flex;
            }
            .nav-link {
                width: 100%;
                padding: 12px 16px;
                font-size: 16px;
            }
            .nav-link.active::after {
                display: none;
            }
            .nav-toggle {
                display: flex;
            }
            .hero {
                min-height: 360px;
                padding: 120px 0 48px;
            }
            .hero h1 {
                font-size: 32px;
            }
            .hero-subtitle {
                font-size: 16px;
            }
            .hero-actions .btn {
                width: 100%;
            }
            .section-head h2 {
                font-size: 26px;
            }
            .value-grid {
                grid-template-columns: 1fr;
            }
            .scenario-grid {
                grid-template-columns: 1fr;
            }
            .process-grid {
                grid-template-columns: 1fr;
            }
            .case-stack {
                grid-template-columns: 1fr;
            }
            .case-small {
                flex-direction: column;
                align-items: flex-start;
            }
            .case-cover-sm {
                width: 100%;
                height: 140px;
            }
            .case-large {
                min-height: 0;
            }
            .case-cover {
                height: 180px;
            }
            .cta-section {
                padding: 48px 0;
            }
            .cta-card {
                padding: 44px 20px;
            }
            .cta-card h2 {
                font-size: 24px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
        }
        @media (max-width: 520px) {
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .modal-card {
                padding: 32px 20px 24px;
            }
            .btn {
                width: 100%;
            }
            .header-right .btn-sm {
                padding: 8px 14px;
                font-size: 13px;
            }
        }