/* roulang page: index */
:root{
  --bg0:#05080F;
  --bg1:#0A1220;
  --bg2:#0E1B2E;
  --panel-glass:rgba(13,24,40,.62);
  --panel-solid:#101C2C;
  --line-light:rgba(142,205,255,.16);
  --line-strong:rgba(112,220,255,.32);
  --brand:#23C5FF;
  --brand-lite:#86E1FF;
  --brand-deep:#0881B8;
  --amber:#F5B455;
  --amber-lite:#FFDA99;
  --positive:#3EDC9F;
  --danger:#FF6A7A;
  --text-hi:#F0F6FF;
  --text-mid:#A8BACB;
  --text-low:#62778A;
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans",sans-serif;
  --radius-sm:6px;
  --radius-md:12px;
  --radius-lg:16px;
  --radius-xl:24px;
  --shadow-card:0 16px 36px rgba(0,0,0,.22);
  --shadow-float:0 8px 30px rgba(0,0,0,.26);
  --shadow-glow:0 0 0 1px rgba(35,197,255,.22),0 0 22px rgba(35,197,255,.16);
  --shadow-amber:0 0 18px rgba(245,180,85,.18);
  --space-section:96px;
  --space-section-md:72px;
  --space-section-sm:52px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-main);
  background:var(--bg0);
  background-image:radial-gradient(circle at 10% 0%,rgba(35,197,255,.08),transparent 34%),radial-gradient(circle at 90% 90%,rgba(245,180,85,.05),transparent 30%);
  color:var(--text-mid);
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  min-height:100vh;
}
body::before{
  content:'';
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.02) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.02) 1px,transparent 1px);
  background-size:40px 40px;
  -webkit-mask-image:linear-gradient(180deg,transparent,rgba(0,0,0,.45) 40%,transparent 85%);
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .25s ease}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer;border:none;background:none;color:inherit}
input,textarea,select{font-family:inherit}
.container{max-width:var(--container);margin:0 auto;padding:0 24px;position:relative;z-index:2}
.section{position:relative;padding:var(--space-section) 0}
.section.compact{padding:52px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:38px;flex-wrap:wrap}
.section-head h2{font-size:34px;line-height:1.25;color:var(--text-hi);letter-spacing:.5px}
.section-head p{font-size:17px;color:var(--text-low);margin-top:8px;max-width:520px}
.eyebrow{display:inline-flex;align-items:center;gap:8px;color:var(--brand);font-size:13px;letter-spacing:2px;text-transform:uppercase;margin-bottom:10px}
.eyebrow::before{content:'';width:22px;height:1px;background:var(--brand);display:inline-block}
a.link-more{color:var(--brand-lite);font-size:15px;border-bottom:1px dashed transparent;display:inline-flex;gap:6px;align-items:center}
a.link-more:hover{border-bottom-color:var(--brand)}
/* buttons */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--radius-md);
  padding:13px 26px;
  min-height:48px;
  font-size:15px;
  font-weight:600;
  line-height:1;
  text-decoration:none;
  border:1px solid transparent;
  transition:all .25s ease;
  white-space:nowrap;
  background:transparent;
  color:var(--text-hi);
  outline:none;
}
.btn:focus-visible,.btn:focus{outline:2px solid rgba(35,197,255,.5);outline-offset:2px}
.btn svg{width:16px;height:16px}
.btn-primary{
  background:linear-gradient(135deg,var(--brand) 0%,var(--brand-deep) 100%);
  color:#062336;
  box-shadow:var(--shadow-glow);
  border-color:rgba(255,255,255,.08);
}
.btn-primary:hover{
  background:linear-gradient(135deg,var(--brand-lite) 0%,var(--brand) 100%);
  box-shadow:0 0 0 1px rgba(35,197,255,.32),0 0 32px rgba(35,197,255,.28);
  transform:translateY(-1px);
}
.btn-primary:active{transform:translateY(1px);box-shadow:inset 0 2px 8px rgba(0,0,0,.25)}
.btn-amber{
  background:linear-gradient(135deg,var(--amber-lite),var(--amber) 52%,#D0923C);
  color:#422D13;
  box-shadow:var(--shadow-amber);
}
.btn-amber:hover{filter:brightness(1.05);box-shadow:0 0 24px rgba(245,180,85,.28);transform:translateY(-1px)}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,.18);
  color:var(--text-hi);
}
.btn-ghost:hover{border-color:var(--line-strong);background:rgba(255,255,255,.04);box-shadow:0 0 0 1px rgba(35,197,255,.12)}
.btn[disabled]{opacity:.5;pointer-events:none}
/* header */
.top-tip{
  background:var(--bg1);
  border-bottom:1px solid var(--line-light);
  color:var(--text-low);
  padding:8px 0;
  font-size:13px;
}
.top-tip .container{display:flex;align-items:center;gap:14px;justify-content:space-between}
.top-tip .tip-item{display:flex;align-items:center;gap:8px;overflow:hidden}
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(5,8,15,.72);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid transparent;
  transition:background .3s,border .3s;
}
.site-header.scrolled{background:rgba(5,8,15,.9);border-bottom-color:var(--line-light)}
.header-shell{display:flex;align-items:center;gap:18px;min-height:74px;max-width:var(--container);margin:0 auto;padding:0 24px}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo-mark{
  width:40px;height:40px;background:linear-gradient(135deg,var(--brand),#054B7A);
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;
  color:#fff;
  font-size:19px;
  box-shadow:var(--shadow-glow);
  transform:rotate(45deg);
  position:relative;
  overflow:hidden;
}
.logo-mark span{transform:rotate(-45deg)}
.logo-word{font-size:20px;font-weight:700;color:var(--text-hi);letter-spacing:.3px}
.logo-word small{display:block;font-size:11px;font-weight:400;color:var(--brand);letter-spacing:2px;line-height:1}
.nav-main{
  display:flex;
  align-items:center;
  flex:1;
  justify-content:center;
}
.nav-tabs{
  display:flex;
  align-items:center;
  gap:4px;
  background:rgba(14,27,46,.72);
  border:1px solid var(--line-light);
  border-radius:48px;
  padding:5px;
  flex-wrap:nowrap;
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
}
.nav-tabs .nav-tab{
  padding:9px 16px;
  color:var(--text-mid);
  font-size:14px;
  border-radius:48px;
  cursor:pointer;
  white-space:nowrap;
  transition:all .23s ease;
  min-height:40px;
  display:inline-flex;
  align-items:center;
  gap:6px;
}
.nav-tabs .nav-tab:hover{background:rgba(35,197,255,.12);color:var(--brand-lite)}
.nav-tabs .nav-tab.active{background:var(--brand);color:#07212E;font-weight:600;box-shadow:0 0 12px rgba(35,197,255,.28)}
.nav-cta{padding-left:14px;flex-shrink:0}
.header-links{display:flex;gap:10px;align-items:center}
.mobile-search-btn{display:none}
/* hero */
.hero{position:relative;overflow:hidden;padding:80px 0 40px;min-height:calc(100vh - 120px);display:flex;align-items:center}
.hero::after{
  content:'';
  position:absolute;
  bottom:0;left:0;right:0;
  height:120px;
  background:linear-gradient(180deg,transparent,var(--bg0));
  z-index:1;
  pointer-events:none;
}
.hero-shell{display:grid;grid-template-columns:55% 45%;gap:32px;align-items:center}
.hero-copy h1{font-size:50px;line-height:1.18;color:var(--text-hi);text-align:left;letter-spacing:1px;margin-bottom:18px;font-weight:800}
.hero-copy h1 .brand-badge{color:var(--brand);text-shadow:0 0 18px rgba(35,197,255,.35)}
.hero-desc{font-size:18px;line-height:1.9;color:var(--text-mid);max-width:540px;margin-bottom:30px}
.hero-desc strong{color:var(--text-hi);font-weight:600}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap;margin-bottom:34px}
.trust-line{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line-light);padding-top:20px}
.trust-item{padding-right:28px;margin-left:28px;border-left:1px solid var(--line-light);padding-left:28px}
.trust-item:first-child{margin-left:0;padding-left:0;border-left:none}
.trust-item .num{font-size:26px;font-weight:700;color:var(--brand-lite);font-family:DIN,sans-serif;line-height:1.2}
.trust-item .label{font-size:13px;color:var(--text-low);margin-top:2px}
/* hero panel */
.hero-panel{position:relative;z-index:2;display:flex;justify-content:flex-end}
.panel-box{
  width:100%;
  max-width:480px;
  background:var(--panel-glass);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border:1px solid var(--line-light);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12),var(--shadow-card);
  border-radius:var(--radius-lg);
  padding:14px;
  overflow:hidden;
  transform:rotate(.5deg);
}
.panel-img{
  height:165px;
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid var(--line-light);
  margin-bottom:12px;
}
.panel-img img{width:100%;height:100%;object-fit:cover}
.player-quick{display:grid;grid-template-columns:repeat(2,1fr);gap:12px;margin-bottom:12px}
.quick-cell{
  background:rgba(5,8,15,.44);
  border:1px solid var(--line-light);
  border-radius:var(--radius-md);
  padding:12px 13px;
}
.quick-cell .k{font-size:12px;color:var(--text-low)}
.quick-cell .v{font-size:20px;font-weight:700;color:var(--text-hi);margin-top:3px}
.progress-group{padding:12px 12px 8px;background:rgba(5,8,15,.36);border-radius:var(--radius-md);margin-bottom:12px}
.progress-line{display:flex;align-items:center;justify-content:space-between;font-size:12px;color:var(--text-mid);margin-bottom:5px}
.progress-line b{color:var(--brand-lite)}
.bar{height:6px;background:rgba(255,255,255,.08);border-radius:8px;overflow:hidden;margin-bottom:10px}
.bar>i{display:block;height:100%;background:linear-gradient(90deg,var(--brand-deep),var(--brand));border-radius:10px;width:72%}
.score-board{
  display:flex;
  align-items:center;
  justify-content:space-between;
  border-top:1px solid var(--line-light);
  padding:12px 8px 4px;
}
.score-board .sc-l{display:flex;align-items:center;gap:10px}
.score-board .sc-l .dot{width:8px;height:8px;background:var(--positive);border-radius:50%;box-shadow:0 0 8px var(--positive);animation:pulse 2s infinite}
.score-board .sc-r{font-size:24px;font-weight:700;color:var(--amber);font-family:DIN,sans-serif}
.score-board .sc-l{font-size:13px;color:var(--text-mid);font-weight:600}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
/* tier section */
.stair-wrap{display:grid;grid-template-columns:repeat(3,1fr);align-items:end;gap:16px;margin-top:8px}
.tier{
  position:relative;
  background:var(--panel-solid);
  border:1px solid var(--line-light);
  border-radius:var(--radius-lg);
  padding:28px 22px;
  transition:all .3s ease;
}
.tier.first{height:calc(100% - 28px);transform:translateY(16px);opacity:.92}
.tier.middle{height:100%;border-color:var(--line-strong);box-shadow:inset 0 1px 0 rgba(255,255,255,.1),var(--shadow-card)}
.tier.hot{height:calc(100% - 28px);transform:translateY(16px);border-color:rgba(245,180,85,.28)}
.tier:hover{transform:translateY(-3px);border-color:var(--brand)}
.tier.hot:hover{transform:translateY(14px)}
.tier-flag{
  position:absolute;
  top:-14px;
  left:50%;
  transform:translateX(-50%);
  background:linear-gradient(90deg,var(--amber),var(--amber-lite));
  color:#432C12;
  font-size:12px;
  font-weight:600;
  padding:4px 14px;
  border-radius:30px;
  box-shadow:var(--shadow-amber);
  white-space:nowrap;
}
.tier-idx{
  font-size:38px;
  font-weight:700;
  color:transparent;
  -webkit-text-stroke:1px var(--line-strong);
  font-family:DIN,sans-serif;
  line-height:1.15;
  margin-bottom:6px;
}
.tier h3{font-size:21px;color:var(--text-hi);margin:10px 0 4px}
.tier p.sub{color:var(--text-low);font-size:14px;margin-bottom:16px}
.tier ul li{
  color:var(--text-mid);
  font-size:13.5px;
  padding:5px 0 5px 22px;
  position:relative;
}
.tier ul li::before{
  content:'';
  width:4px;height:4px;
  border-radius:50%;
  background:var(--brand);
  position:absolute;
  left:4px;
  top:15px;
  box-shadow:0 0 8px var(--brand);
}
.tier ul{border-top:1px solid var(--line-light);padding-top:12px;margin:10px 0 18px}
.tier .tier-more{display:flex;font-size:14px;color:var(--brand-lite);align-items:center;gap:4px;cursor:pointer}
/* compare */
.compare-panel{
  background:var(--panel-solid);
  border:1px solid var(--line-light);
  border-radius:var(--radius-lg);
  overflow:hidden;
  overflow-x:auto;
}
table.cmp{width:100%;min-width:650px;border-collapse:collapse}
table.cmp thead th{
  color:var(--text-low);
  font-size:14px;
  padding:18px 20px;
  border-bottom:1px solid var(--line-light);
  font-weight:500;
  text-align:left;
  white-space:nowrap;
}
table.cmp th.feature-name,table.cmp td.feature-name{font-weight:600;color:var(--text-hi);text-align:left}
table.cmp td{
  padding:17px 20px;
  border-bottom:1px solid rgba(142,205,255,.08);
  text-align:center;
  color:var(--text-mid);
  font-size:14px;
}
table.cmp tbody tr:last-child td{border-bottom:none}
table.cmp .rec-col{
  background:rgba(35,197,255,.05);
  border-left:1px solid rgba(35,197,255,.28);
  border-right:1px solid rgba(35,197,255,.28);
  position:relative;
}
table.cmp .rec-col::before{
  content:'玩家推荐';
  position:absolute;
  top:0;
  left:0;
  right:0;
  background:var(--brand);
  color:#06283a;
  font-size:11px;
  padding:2px;
  letter-spacing:2px;
}
table.cmp .icon-ok{color:var(--positive)}
table.cmp .icon-no{color:var(--danger)}
.cmp-head-title{display:flex;align-items:center;gap:8px;justify-content:center}
/* CTA strip */
.cta-strip{
  background:var(--panel-glass);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border:1px solid var(--line-strong);
  border-radius:var(--radius-xl);
  padding:28px 34px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  flex-wrap:wrap;
}
.countdown{
  display:flex;
  align-items:center;
  gap:16px;
}
.cd-block{
  background:var(--bg0);
  border:1px solid var(--line-light);
  border-radius:var(--radius-md);
  padding:10px 12px;
  text-align:center;
  min-width:82px;
}
.cd-block .cd-num{font-size:28px;font-weight:700;color:var(--text-hi);font-family:DIN,sans-serif;line-height:1.2}
.cd-block .cd-lab{font-size:12px;color:var(--text-low);letter-spacing:1px}
.cta-title{font-size:28px;color:var(--text-hi);font-weight:700;line-height:1.3}
.cta-sub{color:var(--text-mid);font-size:14px;margin-top:4px}
/* cms articles */
.list-card-wrap{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.cms-card{
  display:flex;
  align-items:stretch;
  background:var(--panel-solid);
  border:1px solid var(--line-light);
  border-radius:var(--radius-lg);
  overflow:hidden;
  transition:all .28s ease;
  min-height:160px;
}
.cms-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-card)}
.card-thumb{width:162px;flex-shrink:0;overflow:hidden;position:relative}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.cms-card:hover .card-thumb img{transform:scale(1.03)}
.card-body{flex:1;padding:18px 18px 14px;display:flex;flex-direction:column}
.card-cats{display:flex;gap:6px;margin-bottom:5px}
.chip{display:inline-block;font-size:11px;padding:2px 9px;background:rgba(35,197,255,.12);color:var(--brand-lite);border-radius:12px;border:1px solid rgba(35,197,255,.14)}
.card-title-wrap{margin:7px 0 5px}
.card-title{font-size:18px;line-height:1.45;color:var(--text-hi);font-weight:600}
.card-desc{font-size:13.5px;color:var(--text-mid);line-height:1.7;}
.card-meta{display:flex;justify-content:space-between;font-size:12px;color:var(--text-low);margin-top:auto;padding-top:10px;}
.card-meta time{display:inline-flex;align-items:center;gap:4px}
@media (max-width:968px){.cms-card{flex-direction:column}.card-thumb{width:100%;height:140px;flex:0 0 auto}}
/* faq */
.faq-section{
  display:grid;
  grid-template-columns:5fr 7fr;
  gap:44px;
  align-items:flex-start;
}
details{
  background:var(--panel-solid);
  border:1px solid var(--line-light);
  border-radius:var(--radius-md);
  margin-bottom:12px;
  overflow:hidden;
  transition:all .22s;
}
details[open]{border-color:rgba(245,180,85,.27)}
summary{
  padding:16px 18px;
  cursor:pointer;
  color:var(--text-hi);
  font-size:15.5px;
  list-style:none;
  position:relative;
  padding-right:52px;
  user-select:none;
  font-weight:500;
}
summary::-webkit-details-marker{display:none}
summary .dot{
  position:absolute;
  right:16px;
  top:50%;
  transform:translateY(-50%);
  width:8px;height:8px;
  border-radius:2px;
  background:var(--amber);
  box-shadow:0 0 6px rgba(245,180,85,.3);
}
details p{padding:2px 18px 17px;color:var(--text-mid);font-size:14.5px;border-top:1px solid var(--line-light);margin:0 16px 8px;padding-top:17px;}
/* lead form */
.lead-box{display:grid;grid-template-columns:7fr 5fr;gap:44px;align-items:center}
.lead-form{
  background:var(--panel-glass);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border:1px solid var(--line-light);
  border-radius:var(--radius-lg);
  padding:30px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,.12),var(--shadow-card);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:14px}
.form-item{margin-bottom:14px}
.form-label{font-size:13px;color:var(--text-mid);margin-bottom:7px;display:block}
.form-field{width:100%;background:rgba(5,8,15,.58);border:1px solid var(--line-light);border-radius:var(--radius-md);color:var(--text-hi);padding:11px 14px;font-size:14px;outline:none;transition:all .23s ease;min-height:44px}
.form-field:focus{border-color:var(--brand);box-shadow:0 0 0 4px rgba(35,197,255,.12)}
.form-field:hover{border-color:rgba(112,220,255,.2)}
textarea.form-field{min-height:90px;resize:vertical}
select.form-field option{background:var(--bg1)}
.form-check{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-low);margin:6px 0 16px}
.form-check input{width:15px;height:15px;accent-color:var(--brand)}
.lead-side h2{color:var(--text-hi)}
.lead-side .lead-list-item{display:flex;gap:12px;align-items:center;margin-top:18px;font-size:14.5px;color:var(--text-mid)}
.lead-side .lead-list-item svg{flex:0 0 18px;color:var(--brand);width:18px;height:18px}
/* footer */
.site-footer{
  background:var(--bg1);
  border-top:1px solid var(--line-light);
  padding:50px 0 20px;
  margin-top:10px;
}
.footer-top{display:grid;grid-template-columns:3fr 2fr 2fr 2fr;gap:24px;padding-bottom:34px;border-bottom:1px solid rgba(142,205,255,.1)}
.footer-brand .logo{display:flex;align-items:center;margin-bottom:16px;flex-wrap:wrap}
.footer-desc{font-size:13.5px;color:var(--text-low);line-height:1.8;padding-left:2px}
.footer-h{font-size:15px;color:var(--text-hi);margin-bottom:14px;font-weight:600}
.footer-list li{margin-bottom:12px}
.footer-list li a{color:var(--text-mid);font-size:14px;transition:color .2s, padding-left .2s}
.footer-list li a:hover{color:var(--brand-lite);padding-left:4px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding-top:16px;font-size:13px;color:var(--text-low)}
/* mobile header */
.menu-toggle{display:none;width:46px;height:46px;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--line-light);cursor:pointer;background:rgba(14,27,46,.72)}
.menu-toggle span{display:block;width:18px;height:2px;background:var(--text-hi);margin:2px auto;transition:all .3s}
/* misc */
.section-separator{height:1px;background:linear-gradient(90deg,transparent,var(--line-light),transparent);max-width:var(--container);margin:auto}
.breadcrumb-row{padding:22px 0 0}
.breadcrumb{display:flex;gap:8px;color:var(--text-low);font-size:14px}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb i{opacity:.5}
/* 分类用 */
.sub-banner-card{
  background:var(--bg2);
  border:1px solid var(--line-light);
  border-radius:var(--radius-xl);
  overflow:hidden;
  position:relative;
  margin-top:34px;
}
.article-entry{margin-top:40px}
@media (max-width:1100px){
  .trust-item{padding-right:12px;margin-left:12px;padding-left:14px}
  .hero-shell{grid-template-columns:1fr}
  .hero-panel{justify-content:flex-start}
  .panel-box{max-width:100%}
}
@media (max-width:900px){
  .header-shell{flex-wrap:wrap;min-height:auto;padding-top:8px}
  .nav-main{order:3;width:100%;overflow-x:auto;padding-bottom:8px}
  .nav-tabs{width:100%;overflow-x:auto;justify-content:flex-start;flex-wrap:nowrap}
  .footer-top{grid-template-columns:1fr 1fr}
  .section{padding:52px 0}
  .stair-wrap{grid-template-columns:1fr}
  .tier.first,.tier.middle,.tier.hot,.tier{height:auto;transform:none;}
  .tier.hot:hover{transform:translateY(-3px)}
  .faq-section{grid-template-columns:1fr}
  .lead-box{grid-template-columns:1fr}
  .form-row{grid-template-columns:1fr}
  .section-head h2{font-size:28px}
}
@media (max-width:760px){
  .container{padding:0 18px}
  .hero-copy h1{font-size:34px}
  .hero-desc{font-size:15px}
  .hero{padding:40px 0 28px}
  .hero-actions .btn{width:100%}
  .trust-line{gap:14px}
  .trust-item{width:calc(50% - 14px);margin-left:0;padding-left:14px;margin-bottom:10px}
  .trust-item:first-child{padding-left:0}
  .cta-strip{padding:20px}
  .countdown{flex-wrap:wrap}
  .cd-block{min-width:60px;padding:6px 8px}
  .cd-block .cd-num{font-size:20px}
  .list-card-wrap{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr;gap:20px}
  .menu-toggle{display:flex}
  .nav-main{order:3;display:none}
  .nav-main.open{display:block}
}
@media (max-width:420px){
  .trust-item{width:100%;border-left:none!important;margin-left:0!important;padding-left:0!important}
}

/* roulang page: article */
:root{
  --bg0:#05080F;
  --bg1:#0A1220;
  --bg2:#0E1B2E;
  --panel-glass:rgba(13,24,40,0.62);
  --panel-solid:#101C2C;
  --line-light:rgba(142,205,255,0.16);
  --line-strong:rgba(112,220,255,0.32);
  --brand:#23C5FF;
  --brand-lite:#86E1FF;
  --brand-deep:#0881B8;
  --amber:#F5B455;
  --amber-lite:#FFDA99;
  --positive:#3EDC9F;
  --danger:#FF6A7A;
  --text-hi:#F0F6FF;
  --text-mid:#A8BACB;
  --text-low:#62778A;
  --radius-sm:6px;
  --radius-md:12px;
  --radius-lg:16px;
  --radius-xl:22px;
  --shadow-pop:0 8px 30px rgba(0,0,0,0.26);
  --shadow-brand:0 0 0 1px rgba(35,197,255,0.22),0 0 22px rgba(35,197,255,0.16);
  --shadow-amber:0 0 18px rgba(245,180,85,0.18);
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans",system-ui,sans-serif;
  --container-w:1200px;
  --space-section:88px;
  --header-h:80px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  font-family:var(--font-main);
  font-size:16px;
  line-height:1.8;
  color:var(--text-mid);
  background:
    radial-gradient(1100px 600px at 12% -8%,rgba(35,197,255,0.09),transparent 60%),
    radial-gradient(900px 520px at 88% 8%,rgba(245,180,85,0.05),transparent 55%),
    linear-gradient(180deg,#05080F 0%,#060B14 100%);
  min-height:100vh;
  position:relative;
  overflow-x:hidden;
}
body::before{
  content:"";
  pointer-events:none;
  position:fixed;
  inset:0;
  z-index:0;
  background-image:
    linear-gradient(rgba(255,255,255,0.018) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.018) 1px,transparent 1px);
  background-size:40px 40px;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block;border:0}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
ul,ol{list-style:none}
.container{width:100%;max-width:var(--container-w);margin:0 auto;padding-left:24px;padding-right:24px;position:relative;z-index:1}
.main{position:relative;z-index:2}

/* ===== 顶部提示条 ===== */
.site-topbar{
  background:rgba(10,18,32,0.92);
  border-bottom:1px solid rgba(142,205,255,0.08);
  font-size:13px;
  color:var(--text-mid);
  padding:8px 0;
}
.topbar-inner{display:flex;align-items:center;justify-content:space-between;gap:20px}
.topbar-dot{display:inline-block;width:6px;height:6px;border-radius:50%;background:var(--positive);margin-right:8px;box-shadow:0 0 8px rgba(62,220,159,0.4)}
.topbar-right{color:var(--text-low);white-space:nowrap}

/* ===== Header 导航 ===== */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(5,9,16,0.82);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .3s,border-color .3s;
}
.site-header.is-scrolled{background:rgba(5,8,15,0.96);border-bottom-color:rgba(142,205,255,0.14)}
.header-inner{display:flex;align-items:center;gap:24px;min-height:var(--header-h)}
.logo{display:flex;align-items:center;gap:10px;flex-shrink:0;transition:opacity .2s}
.logo:hover{opacity:0.92}
.logo-mark{
  width:44px;height:44px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(135deg,#23C5FF,#0773A8);
  color:#04222F;
  font-size:16px;
  font-weight:800;
  letter-spacing:0.5px;
  box-shadow:0 0 0 1px rgba(134,225,255,0.25),0 0 20px rgba(35,197,255,0.14);
  position:relative;
  overflow:hidden;
}
.logo-mark span{position:relative;z-index:2}
.logo-mark::after{
  content:"";
  position:absolute;
  width:80px;height:80px;
  left:-30px;top:-50px;
  background:linear-gradient(135deg,rgba(255,255,255,0.5),transparent 60%);
  transform:rotate(25deg);
}
.logo-word{
  font-size:21px;
  font-weight:800;
  color:var(--text-hi);
  letter-spacing:0.6px;
  white-space:nowrap;
}
.nav-zone{display:flex;justify-content:center;flex:1;min-width:0}
.nav-tabs{
  display:flex;
  align-items:center;
  gap:4px;
  background:rgba(14,27,46,0.72);
  border:1px solid rgba(142,205,255,0.12);
  border-radius:40px;
  padding:5px;
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  scrollbar-width:none;
  overflow-x:auto;
}
.nav-tabs::-webkit-scrollbar{display:none}
.nav-tab{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:38px;
  padding:0 18px;
  border-radius:40px;
  font-size:15px;
  font-weight:500;
  color:var(--text-mid);
  white-space:nowrap;
  transition:all .2s ease;
}
.nav-tab:hover{color:var(--brand-lite);background:rgba(35,197,255,0.1)}
.nav-tab.active{
  background:linear-gradient(180deg,#F3FAFF,#BDEBFF);
  color:#072634;
  font-weight:700;
  box-shadow:0 2px 10px rgba(35,197,255,0.18);
}
.header-cta{display:flex;align-items:center;gap:12px;flex-shrink:0}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:46px;
  padding:0 22px;
  border-radius:var(--radius-md);
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  cursor:pointer;
  transition:all .22s ease;
  white-space:nowrap;
  min-width:44px;
}
.btn svg{width:16px;height:16px;flex-shrink:0}
.btn-primary{
  background:linear-gradient(135deg,#1CBDF7,#0B90D6);
  color:#052D3C;
  box-shadow:0 0 0 1px rgba(134,225,255,0.24),0 0 18px rgba(35,197,255,0.14);
}
.btn-primary:hover{
  background:linear-gradient(135deg,#56D4FF,#21A9E8);
  box-shadow:0 0 0 1px rgba(134,225,255,0.36),0 0 26px rgba(35,197,255,0.24);
  transform:translateY(-1px);
}
.btn-primary:active{transform:translateY(1px);box-shadow:inset 0 2px 8px rgba(0,0,0,0.16)}
.btn-ghost{
  background:transparent;
  border-color:rgba(255,255,255,0.2);
  color:var(--text-hi);
  position:relative;
  overflow:hidden;
}
.btn-ghost:hover{border-color:rgba(134,225,255,0.44);color:var(--brand-lite);box-shadow:inset 0 0 22px rgba(35,197,255,0.08)}
.btn-ghost::after{
  content:"";
  position:absolute;
  top:0;left:-80%;
  width:40%;height:100%;
  background:linear-gradient(100deg,transparent,rgba(255,255,255,0.08),transparent);
  transform:skewX(-18deg);
  transition:left .42s ease;
}
.btn-ghost:hover::after{left:130%}
.btn-amber{
  background:linear-gradient(135deg,#F5B455,#E98A2A);
  color:#221203;
  box-shadow:var(--shadow-amber);
}
.btn-amber:hover{background:linear-gradient(135deg,#FFC068,#F59A40);transform:translateY(-1px)}
.btn-block{width:100%}
.btn:focus-visible,a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible,summary:focus-visible{
  outline:2px solid rgba(35,197,255,0.55);
  outline-offset:2px;
}

/* ===== 通用 Section ===== */
.section{padding:var(--space-section) 0;position:relative}
.section-sm{padding:56px 0}
.section-title{font-size:clamp(28px,4vw,36px);line-height:1.25;font-weight:800;color:var(--text-hi);letter-spacing:0.4px}
.section-sub{margin-top:12px;font-size:17px;max-width:720px;color:var(--text-mid)}
.kicker{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  font-weight:700;
  color:var(--brand-lite);
  letter-spacing:2px;
  text-transform:uppercase;
  margin-bottom:14px;
}
.kicker::before{content:"";width:22px;height:2px;background:var(--brand);box-shadow:0 0 8px rgba(35,197,255,0.5)}
.kicker.is-amber{color:var(--amber-lite)}
.kicker.is-amber::before{background:var(--amber)}
.chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:7px 14px;
  background:rgba(35,197,255,0.08);
  border:1px solid rgba(35,197,255,0.2);
  border-radius:40px;
  font-size:13px;
  font-weight:500;
  color:var(--brand-lite);
  white-space:nowrap;
}
.chip-amber{
  background:rgba(245,180,85,0.12);
  border-color:rgba(245,180,85,0.3);
  color:var(--amber-lite);
}

/* ===== 文章 Hero ===== */
.article-hero{
  padding:52px 0 46px;
  border-bottom:1px solid rgba(142,205,255,0.1);
  background:
    linear-gradient(180deg,rgba(10,18,32,0.5),rgba(5,8,15,0.3)),
    repeating-linear-gradient(90deg,rgba(255,255,255,0.02) 0 1px,transparent 1px 60px),
    repeating-linear-gradient(0deg,rgba(255,255,255,0.02) 0 1px,transparent 1px 60px);
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:4px;
  margin-bottom:30px;
  font-size:14px;
  color:var(--text-low);
}
.breadcrumb a{color:var(--text-mid);transition:color .2s}
.breadcrumb a:hover{color:var(--brand-lite)}
.breadcrumb li{display:inline-flex;align-items:center}
.breadcrumb li + li::before{content:"/";margin:0 10px;color:var(--text-low);font-weight:300}
.breadcrumb .current{color:var(--text-hi);font-weight:500}

.article-cat-line{display:flex;align-items:center;flex-wrap:wrap;gap:14px;margin-bottom:20px}
.article-title{
  font-size:clamp(32px,5vw,44px);
  line-height:1.25;
  font-weight:800;
  color:var(--text-hi);
  letter-spacing:0.3px;
  max-width:900px;
  margin-bottom:18px;
}
.article-meta{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px 22px;
  margin-top:8px;
  color:var(--text-low);
  font-size:14px;
}
.meta-item{display:inline-flex;align-items:center;gap:7px}
.meta-item svg{width:18px;height:18px;color:var(--brand)}
.meta-item.is-amber svg{color:var(--amber)}

/* ===== 文章主体 ===== */
.article-main{padding:60px 0 80px}
.article-paper{
  max-width:820px;
  margin:0 auto;
  background:rgba(10,17,27,0.92);
  border:1px solid var(--line-light);
  border-radius:var(--radius-xl);
  padding:clamp(28px,5vw,58px);
  box-shadow:0 1px 0 rgba(255,255,255,0.06) inset,0 22px 60px rgba(0,0,0,0.2);
  position:relative;
}
.article-content{
  font-size:17px;
  line-height:1.94;
  color:#D6E3EF;
  word-break:break-word;
}
.article-content p{margin:0 0 1.6em}
.article-content h2{
  font-size:clamp(22px,3vw,28px);
  line-height:1.3;
  color:var(--text-hi);
  margin:2.2em 0 0.9em;
  font-weight:800;
  padding-left:16px;
  position:relative;
}
.article-content h2::before{
  content:"";
  position:absolute;
  left:0;top:0.15em;
  width:5px;height:0.9em;
  border-radius:6px;
  background:linear-gradient(180deg,var(--brand),var(--brand-deep));
  box-shadow:0 0 12px rgba(35,197,255,0.4);
}
.article-content h3{
  font-size:20px;
  line-height:1.4;
  color:var(--text-hi);
  margin:1.8em 0 0.7em;
  font-weight:700;
}
.article-content h4{
  font-size:17px;
  color:var(--text-hi);
  margin:1.6em 0 0.6em;
  font-weight:700;
}
.article-content ul,.article-content ol{
  margin:0 0 1.6em;
  padding-left:1.2em;
}
.article-content ul li{list-style:disc;margin:0.45em 0}
.article-content ol li{list-style:decimal;margin:0.45em 0}
.article-content li::marker{color:var(--brand)}
.article-content blockquote{
  margin:1.8em 0;
  padding:18px 22px;
  border-left:3px solid var(--brand);
  background:rgba(35,197,255,0.08);
  border-radius:0 var(--radius-md) var(--radius-md) 0;
  color:#C9D9E8;
}
.article-content blockquote p{margin:0}
.article-content img{
  width:100%;
  border-radius:16px;
  border:1px solid var(--line-light);
  margin:1.8em 0;
  object-fit:cover;
}
.article-content table{
  width:100%;
  border-collapse:collapse;
  margin:1.6em 0;
  font-size:15px;
  overflow:hidden;
  border-radius:12px;
  display:block;
  overflow-x:auto;
}
.article-content table th,.article-content table td{
  padding:12px 16px;
  text-align:left;
  border:1px solid rgba(142,205,255,0.14);
  white-space:nowrap;
}
.article-content table th{background:rgba(35,197,255,0.1);color:var(--text-hi);font-weight:700}
.article-content table td{background:rgba(9,17,29,0.5)}
.article-content a{color:var(--brand-lite);border-bottom:1px solid rgba(134,225,255,0.3);transition:all .2s}
.article-content a:hover{color:#fff;border-color:#fff}
.article-content code{
  background:rgba(35,197,255,0.08);
  border:1px solid rgba(35,197,255,0.14);
  border-radius:6px;
  padding:2px 8px;
  font-size:0.9em;
  font-family:"SFMono-Regular",Consolas,monospace;
  color:var(--brand-lite);
}
.article-content iframe,.article-content video{max-width:100%;border-radius:14px;margin:1.6em 0}

/* 空内容 */
.not-found{
  padding:90px 20px;
  text-align:center;
}
.not-found-icon{
  width:68px;height:68px;
  margin:0 auto 24px;
  display:flex;align-items:center;justify-content:center;
  border-radius:20px;
  background:rgba(35,197,255,0.08);
  border:1px solid var(--line-light);
  color:var(--brand);
  box-shadow:0 0 26px rgba(35,197,255,0.08);
}
.not-found-icon svg{width:30px;height:30px}
.not-found h2{font-size:24px;color:var(--text-hi);margin-bottom:14px}
.not-found p{color:var(--text-low);margin-bottom:30px}

/* 文章尾部 */
.article-tail{
  margin-top:48px;
  padding-top:34px;
  border-top:1px solid rgba(142,205,255,0.12);
}
.article-tags{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:34px;
}
.tag-label{display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--text-low);margin-right:4px}
.tag-label svg{width:16px;height:16px;color:var(--amber)}
.related-empty{
  background:rgba(13,24,40,0.5);
  border:1px dashed rgba(142,205,255,0.14);
  border-radius:14px;
  padding:26px 18px;
  margin-top:16px;
  display:flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  color:var(--text-low);
  font-size:14px;
}

/* ===== 继续探索 ===== */
.explore-card{
  background:var(--panel-solid);
  border:1px solid var(--line-light);
  border-radius:var(--radius-lg);
  padding:36px;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.explore-card::before{
  content:"";
  position:absolute;
  top:0;left:0;
  width:100%;height:1px;
  background:linear-gradient(90deg,transparent,rgba(134,225,255,0.6),transparent);
}
.explore-card h2{font-size:24px;color:var(--text-hi);font-weight:800;margin-bottom:10px}
.explore-card p{color:var(--text-mid);font-size:16px;max-width:560px;margin:0 auto 26px}
.explore-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:12px;margin-top:22px}

/* ===== FAQ ===== */
.faq-wrap{
  display:grid;
  grid-template-columns:360px 1fr;
  gap:60px;
  align-items:start;
}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  background:rgba(13,24,40,0.6);
  border:1px solid var(--line-light);
  border-radius:14px;
  overflow:hidden;
  transition:border-color .25s,box-shadow .25s;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item[open]{border-color:rgba(35,197,255,0.3);box-shadow:0 0 0 1px rgba(35,197,255,0.06),0 8px 26px rgba(0,0,0,0.18)}
.faq-item summary{
  display:flex;
  align-items:center;
  gap:12px;
  padding:17px 20px;
  cursor:pointer;
  font-size:15px;
  font-weight:700;
  color:var(--text-hi);
  list-style:none;
  user-select:none;
  min-height:54px;
  transition:background .2s;
}
.faq-item summary:hover{background:rgba(35,197,255,0.04)}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::before{
  content:"";
  width:8px;height:8px;
  border-radius:3px;
  background:var(--amber);
  box-shadow:0 0 8px rgba(245,180,85,0.4);
  flex-shrink:0;
  transition:transform .2s;
}
.faq-item[open] summary::before{transform:rotate(45deg)}
.faq-item summary .arrow{
  margin-left:auto;
  width:20px;height:20px;
  display:inline-flex;
  transition:transform .25s;
  color:var(--text-low);
  flex-shrink:0;
}
.faq-item[open] summary .arrow{transform:rotate(180deg)}
.faq-answer{padding:0 20px 20px 42px;color:var(--text-mid);font-size:14px;line-height:1.85}

/* ===== 咨询表单 ===== */
.contact-grid{
  display:grid;
  grid-template-columns:7fr 5fr;
  gap:36px;
  align-items:stretch;
}
.contact-info h2{font-size:32px;line-height:1.3;color:var(--text-hi);margin-bottom:16px}
.contact-info p{font-size:16px;line-height:1.9;color:var(--text-mid);max-width:520px}
.contact-methods{
  margin-top:30px;
  display:flex;
  flex-direction:column;
  gap:14px;
}
.contact-line{display:flex;align-items:center;gap:12px;color:var(--text-mid);font-size:15px}
.contact-line svg{width:18px;height:18px;color:var(--brand)}
.contact-card{
  background:rgba(12,22,36,0.9);
  border:1px solid var(--line-light);
  border-radius:var(--radius-xl);
  padding:34px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.08),0 18px 46px rgba(0,0,0,0.22);
}
.form-row{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:14px;
  margin-bottom:14px;
}
.field-group{margin-bottom:14px}
.field-label{
  display:block;
  font-size:13px;
  font-weight:600;
  color:var(--text-hi);
  margin-bottom:7px;
  letter-spacing:0.3px;
}
.field-input,.field-textarea,.field-select{
  width:100%;
  background:#0A1420;
  border:1px solid rgba(142,205,255,0.18);
  border-radius:11px;
  padding:12px 14px;
  font-size:15px;
  line-height:1.5;
  color:var(--text-hi);
  transition:border-color .2s,box-shadow .2s;
  -webkit-appearance:none;
  appearance:none;
}
.field-input:hover,.field-textarea:hover,.field-select:hover{border-color:rgba(35,197,255,0.24)}
.field-input:focus,.field-textarea:focus,.field-select:focus{
  border-color:var(--brand);
  outline:none;
  box-shadow:0 0 0 4px rgba(35,197,255,0.12);
}
.field-input::placeholder,.field-textarea::placeholder{color:var(--text-low)}
.field-textarea{min-height:110px;resize:vertical}
.field-select{
  background-image:url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none' stroke='%2362778A' stroke-width='2'%3E%3Cpath d='m1 1 5 5 5-5'/%3E%3C/svg%3E");
  background-repeat:no-repeat;
  background-position:right 16px center;
  padding-right:42px;
  cursor:pointer;
}
.check-line{
  display:flex;
  gap:8px;
  align-items:flex-start;
  font-size:13px;
  color:var(--text-low);
  margin:6px 0 18px;
  cursor:pointer;
}
.check-line input{
  width:17px;height:17px;
  margin-top:3px;
  accent-color:var(--brand);
}
.form-note{font-size:13px;color:var(--text-low);margin-top:12px;text-align:center}
.form-success{
  display:none;
  align-items:center;
  gap:10px;
  background:rgba(62,220,159,0.1);
  border:1px solid rgba(62,220,159,0.3);
  border-radius:10px;
  color:var(--positive);
  font-size:14px;
  padding:12px 15px;
  margin-top:14px;
}
.form-success.show{display:flex}
.form-success svg{width:18px;height:18px;flex-shrink:0}

/* ===== 可复用信息卡 ===== */
.info-strip{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:16px;
  background:rgba(10,18,32,0.8);
  border:1px solid var(--line-light);
  border-radius:16px;
  padding:24px;
}
.info-strip b{font-size:26px;color:var(--brand);font-weight:800;display:block;line-height:1.3}
.info-strip span{font-size:13px;color:var(--text-low)}

/* ===== 页脚 ===== */
.site-footer{
  background:#070D17;
  border-top:1px solid rgba(142,205,255,0.1);
  position:relative;
  z-index:2;
  padding-top:64px;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;left:10%;
  right:10%;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,197,255,0.3),transparent);
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 0.8fr 0.9fr 0.9fr;
  gap:40px;
  padding-bottom:44px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand .logo-mark{width:40px;height:40px;border-radius:10px;font-size:14px}
.footer-desc{font-size:14px;line-height:1.9;color:var(--text-low);max-width:300px}
.footer-h{
  font-size:13px;
  font-weight:700;
  letter-spacing:2px;
  color:var(--text-hi);
  text-transform:uppercase;
  margin-bottom:18px;
  position:relative;
  padding-left:14px;
}
.footer-h::before{
  content:"";
  position:absolute;
  left:0;top:0.25em;
  width:4px;height:0.85em;
  border-radius:4px;
  background:var(--brand);
}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list li{font-size:14px;color:var(--text-mid)}
.footer-list a{transition:color .2s,padding-left .2s}
.footer-list a:hover{color:var(--brand-lite);padding-left:4px}
.footer-bottom{
  border-top:1px solid rgba(142,205,255,0.1);
  padding:26px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  flex-wrap:wrap;
  font-size:13px;
  color:var(--text-low);
}
.footer-bottom a{color:var(--text-low);transition:color .2s}
.footer-bottom a:hover{color:var(--brand-lite)}

/* ===== 响应式 ===== */
@media (max-width:1200px){
  .header-cta .btn-header{display:none}
  .footer-top{grid-template-columns:1fr 1fr;gap:34px}
}
@media (max-width:1024px){
  :root{--space-section:64px}
  .container{padding-left:20px;padding-right:20px}
  .header-inner{min-height:72px}
  .nav-zone{flex:1;justify-content:flex-start}
  .faq-wrap{grid-template-columns:1fr;gap:28px}
  .contact-grid{grid-template-columns:1fr 1fr;gap:28px}
  .info-strip{grid-template-columns:repeat(2,1fr)}
  .article-title{font-size:clamp(28px,4vw,36px)}
}
@media (max-width:900px){
  .header-inner{flex-wrap:wrap}
  .nav-zone{order:3;flex-basis:100%;justify-content:center;margin-top:-8px}
  .nav-tabs{width:100%;justify-content:flex-start}
}
@media (max-width:768px){
  :root{--space-section:46px}
  body{font-size:15px}
  .site-topbar{display:none}
  .container{padding-left:16px;padding-right:16px}
  .header-inner{min-height:66px;gap:10px}
  .logo-mark{width:38px;height:38px;font-size:14px;border-radius:10px}
  .logo-word{font-size:17px}
  .header-cta .btn--small-header{display:inline-flex}
  .nav-zone{order:3;flex-basis:100%}
  .nav-tabs{justify-content:flex-start}
  .nav-tab{height:36px;padding:0 15px;font-size:14px}
  .btn{height:44px;font-size:14px;padding:0 18px}
  .section-title{font-size:23px}
  .article-hero{padding:36px 0 30px}
  .breadcrumb{margin-bottom:20px}
  .article-cat-line{gap:8px;margin-bottom:14px}
  .article-title{font-size:clamp(24px,4vw,30px);line-height:1.35;margin-bottom:12px}
  .article-meta{gap:7px 14px;font-size:13px}
  .article-main{padding:34px 0 50px}
  .article-paper{padding:24px 18px;border-radius:16px}
  .article-content{font-size:16px;line-height:1.9}
  .article-content table{display:block}
  .info-strip{grid-template-columns:1fr 1fr;gap:12px;padding:18px}
  .info-strip b{font-size:22px}
  .explore-card{padding:28px 18px}
  .explore-actions .btn{width:100%}
  .contact-grid{grid-template-columns:1fr;gap:20px}
  .contact-card{padding:24px 18px;border-radius:16px}
  .form-row{grid-template-columns:1fr}
  .faq-wrap{grid-template-columns:1fr}
  .footer-top{grid-template-columns:1fr 1fr;gap:24px}
  .footer-bottom{flex-direction:column;text-align:center}
}
@media (max-width:520px){
  .header-cta .btn-header{display:none}
  .logo-word{font-size:15px}
  .logo-mark{width:34px;height:34px}
  .nav-tab{height:34px;padding:0 13px;font-size:13px}
  .info-strip{grid-template-columns:1fr 1fr}
  .footer-top{grid-template-columns:1fr}
  .footer-h{margin-bottom:12px}
  .footer-list{flex-direction:column;margin-bottom:10px}
}

/* roulang page: category1 */
:root{
  --bg0:#05080f;
  --bg1:#0a1220;
  --bg2:#0e1b2e;
  --panel-glass:rgba(13,24,40,0.62);
  --panel-solid:#101c2c;
  --line-light:rgba(142,205,255,0.16);
  --line-strong:rgba(112,220,255,0.32);
  --brand:#23c5ff;
  --brand-lite:#86e1ff;
  --brand-deep:#0881b8;
  --amber:#f5b455;
  --amber-lite:#ffda99;
  --positive:#3edc9f;
  --danger:#ff6a7a;
  --text-hi:#f0f6ff;
  --text-mid:#a8bacb;
  --text-low:#62778a;
  --radius-sm:6px;
  --radius-md:12px;
  --radius-lg:18px;
  --shadow-float:0 8px 30px rgba(0,0,0,0.26);
  --shadow-brand:0 0 0 1px rgba(35,197,255,0.22), 0 0 22px rgba(35,197,255,0.16);
  --shadow-amber:0 0 18px rgba(245,180,85,0.18);
  --font-main:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans",sans-serif;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;scroll-padding-top:118px}
body{
  background-color:var(--bg0);
  background-image:radial-gradient(circle at 8% 0%,rgba(35,197,255,0.08),transparent 24%),radial-gradient(circle at 92% 14%,rgba(245,180,85,0.04),transparent 28%);
  font-family:var(--font-main);
  font-size:16px;
  line-height:1.8;
  color:var(--text-hi);
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,0.016) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,0.016) 1px,transparent 1px);
  background-size:40px 40px;
  -webkit-mask-image:linear-gradient(to bottom,rgba(0,0,0,0.72),transparent 80%);
          mask-image:linear-gradient(to bottom,rgba(0,0,0,0.72),transparent 80%);
}
a{color:inherit;text-decoration:none}
img{display:block;max-width:100%;border:0}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
:focus-visible{outline:2px solid rgba(35,197,255,0.5);outline-offset:2px}
.container{width:min(1200px,100% - 48px);margin-inline:auto;position:relative;z-index:1}
.no-scrollbar{scrollbar-width:none}
.no-scrollbar::-webkit-scrollbar{display:none}

.site-top-tip{
  position:relative;
  z-index:60;
  background:rgba(10,18,32,0.9);
  border-bottom:1px solid rgba(142,205,255,0.09);
  font-size:13px;
  color:var(--text-mid);
  text-align:center;
  padding:8px 16px;
  letter-spacing:0.02em;
}
.site-top-tip strong{color:var(--brand-lite);font-weight:600}
.site-header{
  position:sticky;
  top:0;
  z-index:50;
  background:rgba(5,8,15,0.72);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid var(--line-light);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  min-height:74px;
}
.logo{
  display:flex;
  align-items:center;
  gap:10px;
  flex-shrink:0;
  font-size:17px;
  font-weight:700;
  color:var(--text-hi);
  letter-spacing:0.02em;
}
.logo-mark{
  position:relative;
  width:38px;
  height:38px;
  border-radius:11px;
  background:linear-gradient(135deg,rgba(35,197,255,0.22),rgba(8,129,184,0.38));
  border:1px solid rgba(35,197,255,0.55);
  display:grid;
  place-items:center;
  font-size:14px;
  font-weight:800;
  color:#dff6ff;
  box-shadow:0 0 16px rgba(35,197,255,0.14),inset 0 0 12px rgba(35,197,255,0.1);
}
.logo-mark::before{
  content:"";
  position:absolute;
  inset:4px;
  border-radius:7px;
  border:1px solid rgba(255,255,255,0.1);
  border-top-color:rgba(255,255,255,0.4);
  border-left-color:rgba(255,255,255,0.3);
}
.logo-word{
  white-space:nowrap;
  font-size:18px;
  color:var(--text-hi);
}
.logo-word span{
  color:var(--brand-lite);
  font-weight:600;
}
.nav-scroll{
  flex:1;
  min-width:0;
  display:flex;
  justify-content:center;
  overflow-x:auto;
  position:relative;
  z-index:2;
}
.nav-tabs{
  display:flex;
  align-items:center;
  gap:4px;
  padding:4px;
  background:rgba(255,255,255,0.045);
  border:1px solid rgba(142,205,255,0.12);
  border-radius:40px;
  max-width:100%;
}
.nav-tab{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:9px 18px;
  border-radius:999px;
  font-size:14.5px;
  white-space:nowrap;
  color:var(--text-mid);
  line-height:1;
  font-weight:500;
  border:1px solid transparent;
  transition:all .25s ease;
}
.nav-tab:hover{
  color:var(--text-hi);
  background:rgba(255,255,255,0.07);
}
.nav-tab.active{
  background:linear-gradient(180deg,#d9f5ff,#a8e9ff);
  color:#071721;
  border-color:rgba(255,255,255,0.35);
  box-shadow:0 0 14px rgba(35,197,255,0.12);
  font-weight:700;
}
.header-cta{
  flex-shrink:0;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:44px;
  border-radius:var(--radius-md);
  padding:0 20px;
  font-weight:600;
  font-size:15px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s ease,box-shadow .18s ease,background .18s ease,border-color .18s ease,filter .18s ease;
  line-height:1;
  white-space:nowrap;
}
.btn:active{
  transform:translateY(1px);
}
.btn svg{
  width:16px;
  height:16px;
  margin-left:7px;
}
.btn-primary{
  background:linear-gradient(135deg,#23c5ff,#1287c5);
  color:#031421;
  box-shadow:0 0 0 1px rgba(255,255,255,0.06),0 8px 22px rgba(35,197,255,0.14);
}
.btn-primary:hover{
  filter:brightness(1.1);
  box-shadow:0 0 0 1px rgba(255,255,255,0.16),0 0 26px rgba(35,197,255,0.24);
  transform:translateY(-1px);
}
.btn-primary:active{
  transform:translateY(1px);
  box-shadow:inset 0 2px 6px rgba(0,0,0,0.25);
}
.btn-amber{
  background:linear-gradient(135deg,#ffce7d,#f0a446);
  color:#251606;
  box-shadow:0 0 0 1px rgba(255,255,255,0.1),0 0 18px rgba(245,180,85,0.18);
}
.btn-amber:hover{
  filter:brightness(1.05);
  box-shadow:0 0 0 1px rgba(255,255,255,0.22),0 0 24px rgba(245,180,85,0.28);
  transform:translateY(-1px);
}
.btn-ghost{
  background:transparent;
  color:var(--text-hi);
  border-color:rgba(255,255,255,0.24);
}
.btn-ghost:hover{
  border-color:var(--line-strong);
  color:var(--brand-lite);
  box-shadow:inset 0 0 0 1px rgba(35,197,255,0.14);
}
.btn-sm{
  min-height:40px;
  padding:0 17px;
  font-size:14px;
}
.btn-lg{
  min-height:52px;
  padding:0 28px;
  font-size:16px;
  border-radius:14px;
}

.c1-banner{
  position:relative;
  overflow:hidden;
  background:linear-gradient(180deg,rgba(5,8,15,0.82) 0%,rgba(10,18,32,0.74) 62%,#05080f 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  background-color:var(--bg1);
  min-height:430px;
  display:flex;
  align-items:center;
  padding:66px 0 44px;
  isolation:isolate;
}
.c1-banner::after{
  content:"";
  position:absolute;
  left:0;
  right:0;
  bottom:-1px;
  height:120px;
  background:linear-gradient(180deg,transparent,#05080f);
  z-index:0;
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  font-size:13.5px;
  color:var(--text-low);
  margin-bottom:24px;
  letter-spacing:0.02em;
}
.breadcrumb a{color:var(--text-mid);transition:color .2s ease}
.breadcrumb a:hover{color:var(--brand-lite)}
.breadcrumb i{font-style:normal;color:var(--text-low);opacity:0.7}
.breadcrumb strong{color:var(--brand-lite);font-weight:500}
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  border:1px solid rgba(35,197,255,0.3);
  background:rgba(35,197,255,0.1);
  color:var(--brand-lite);
  font-size:12.5px;
  padding:6px 13px;
  border-radius:999px;
  font-weight:500;
  letter-spacing:0.02em;
}
.badge-amber{
  border-color:rgba(245,180,85,0.32);
  background:rgba(245,180,85,0.1);
  color:var(--amber-lite);
}
.c1-banner-inner{
  max-width:880px;
  position:relative;
  z-index:2;
}
.c1-banner-top{
  display:flex;
  align-items:center;
  gap:10px;
  flex-wrap:wrap;
  margin-bottom:18px;
}
.c1-banner h1{
  font-size:38px;
  line-height:1.25;
  font-weight:800;
  color:var(--text-hi);
  letter-spacing:0.01em;
  text-shadow:0 4px 16px rgba(0,0,0,0.4);
  margin-bottom:12px;
}
.c1-banner h1 em{
  font-style:normal;
  color:var(--brand-lite);
  text-shadow:0 0 18px rgba(35,197,255,0.35);
  font-weight:800;
}
.c1-banner p.lead{
  font-size:17px;
  line-height:1.9;
  color:var(--text-mid);
  margin-bottom:28px;
  max-width:720px;
}
.c1-banner .banner-chips{
  display:flex;
  gap:12px;
  flex-wrap:wrap;
  margin-bottom:32px;
}

.content-layout{
  display:grid;
  grid-template-columns:270px minmax(0,1fr);
  gap:46px;
  padding:70px 0 92px;
  align-items:start;
}
.page-toc{
  position:sticky;
  top:100px;
  border:1px solid rgba(142,205,255,0.14);
  background:var(--panel-glass);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-radius:var(--radius-lg);
  padding:22px;
  box-shadow:var(--shadow-float);
  transition:border-color .25s ease;
}
.page-toc:hover{
  border-color:rgba(112,220,255,0.3);
}
.toc-title{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-low);
  font-weight:500;
  letter-spacing:0.08em;
  text-transform:uppercase;
  padding-bottom:12px;
  border-bottom:1px solid rgba(142,205,255,0.12);
  margin-bottom:12px;
}
.toc-title svg{width:16px;height:16px;color:var(--brand)}
.toc-list{
  display:flex;
  flex-direction:column;
  gap:3px;
}
.toc-link{
  display:flex;
  align-items:center;
  gap:9px;
  padding:9px 12px;
  font-size:14px;
  border-radius:var(--radius-md);
  color:var(--text-mid);
  line-height:1.4;
  transition:background .2s ease,color .2s ease,padding-left .2s ease;
}
.toc-link i{
  font-style:normal;
  font-size:11px;
  color:var(--text-low);
  font-family:Georgia,serif;
  width:18px;
  flex-shrink:0;
}
.toc-link:hover{
  color:var(--text-hi);
  background:rgba(35,197,255,0.09);
  padding-left:16px;
}
.toc-link.active, .toc-link[aria-current="true"]{
  color:var(--brand-lite);
  background:rgba(35,197,255,0.12);
  box-shadow:inset 0 0 0 1px rgba(35,197,255,0.12);
}
.toc-help{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid rgba(255,255,255,0.08);
  font-size:13px;
  color:var(--text-low);
  display:flex;
  gap:8px;
}
.toc-help svg{width:15px;height:15px;color:var(--amber);flex-shrink:0}

.main-article{
  min-width:0;
  padding:0 6px;
}
.c1-block{
  padding:40px 0 26px;
  border-bottom:1px solid rgba(142,205,255,0.1);
  scroll-margin-top:118px;
}
.c1-block:first-child{
  padding-top:0;
}
.c1-kicker{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:13px;
  letter-spacing:0.08em;
  color:var(--text-low);
  text-transform:uppercase;
  margin-bottom:12px;
}
.c1-kicker::before{
  content:"";
  width:22px;
  height:2px;
  background:linear-gradient(90deg,var(--brand),transparent);
  border-radius:2px;
}
.c1-block h2{
  font-size:30px;
  line-height:1.3;
  color:var(--text-hi);
  margin-bottom:16px;
  font-weight:760;
  letter-spacing:-0.01em;
}
.c1-block h3{
  font-size:20px;
  margin:30px 0 12px;
  color:var(--text-hi);
  font-weight:650;
  line-height:1.5;
}
.c1-block p{
  color:var(--text-mid);
  font-size:16px;
  line-height:2;
  margin:15px 0;
}
.c1-block p strong{color:var(--text-hi);font-weight:600}
.c1-block .intro-paragraph{
  font-size:17.5px;
  color:var(--text-mid);
}

.link-more{
  display:inline-flex;
  align-items:center;
  gap:7px;
  font-weight:550;
  color:var(--brand-lite);
  font-size:14.5px;
  transition:gap .2s ease;
}
.link-more:hover{gap:11px;color:var(--brand-lite)}
.link-more svg{width:15px;height:15px}

.entry-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px;
  margin:26px 0 10px;
}
.entry-card{
  display:flex;
  flex-direction:column;
  gap:10px;
  padding:20px 20px 22px;
  border-radius:var(--radius-lg);
  border:1px solid rgba(142,205,255,0.14);
  background:linear-gradient(145deg,rgba(13,24,40,0.72),rgba(8,18,31,0.72));
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.08),0 10px 20px rgba(0,0,0,0.12);
  transition:transform .25s ease,border-color .25s ease;
  position:relative;
  overflow:hidden;
}
.entry-card::after{
  content:"";
  position:absolute;
  width:90px;
  height:90px;
  right:-32px;
  top:-36px;
  background:radial-gradient(circle,rgba(35,197,255,0.16),transparent 68%);
  opacity:0;
  transition:opacity .25s ease;
}
.entry-card:hover{
  transform:translateY(-4px);
  border-color:rgba(112,220,255,0.3);
}
.entry-card:hover::after{opacity:1}
.entry-icon{
  width:40px;
  height:40px;
  border-radius:10px;
  display:grid;
  place-items:center;
  background:rgba(35,197,255,0.12);
  border:1px solid rgba(35,197,255,0.28);
  color:var(--brand-lite);
  font-weight:700;
  font-size:15px;
}
.entry-card h3{
  font-size:18px;
  margin:0;
  color:var(--text-hi);
  font-weight:650;
}
.entry-card p{
  font-size:14.5px;
  color:var(--text-mid);
  line-height:1.75;
  margin:0;
}
.entry-card .card-arrow{
  position:absolute;
  right:16px;
  bottom:15px;
  width:24px;
  height:24px;
  color:var(--text-low);
  opacity:0;
  transform:translateX(-6px);
  transition:all .25s ease;
}
.entry-card:hover .card-arrow{
  opacity:1;
  transform:translateX(0);
  color:var(--brand-lite);
}

.glossary-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:14px;
  margin:26px 0 12px;
}
.glossary-item{
  padding:18px 18px 16px;
  border-radius:var(--radius-md);
  border:1px solid rgba(255,255,255,0.08);
  background:rgba(255,255,255,0.026);
  transition:border-color .22s ease,background .22s ease;
}
.glossary-item:hover{
  border-color:rgba(112,220,255,0.22);
  background:rgba(255,255,255,0.04);
}
.glossary-item dt{
  font-weight:650;
  font-size:15.5px;
  color:var(--text-hi);
  margin-bottom:6px;
  display:flex;
  align-items:center;
  gap:8px;
}
.glossary-item dt i{
  font-style:normal;
  width:6px;
  height:6px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 8px rgba(35,197,255,0.5);
}
.glossary-item dd{
  font-size:14px;
  color:var(--text-mid);
  margin:0;
  line-height:1.8;
}

.content-figure{
  border:1px solid rgba(142,205,255,0.14);
  border-radius:var(--radius-lg);
  overflow:hidden;
  margin:30px 0;
  background:var(--panel-solid);
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.08),0 14px 26px rgba(0,0,0,0.18);
}
.content-figure img{
  width:100%;
  height:300px;
  object-fit:cover;
  border-bottom:1px solid rgba(255,255,255,0.04);
}
.content-figure figcaption{
  font-size:13.5px;
  color:var(--text-low);
  padding:13px 20px;
  background:rgba(10,20,34,0.84);
  line-height:1.7;
  display:flex;
  align-items:center;
  gap:8px;
}
.content-figure figcaption::before{
  content:"";
  display:inline-block;
  width:4px;
  height:13px;
  border-radius:4px;
  background:var(--amber);
  flex-shrink:0;
}

.compare-table-note{
  margin-top:14px;
  font-size:13.5px;
  color:var(--text-low);
  display:flex;
}
.compare-table-note svg{
  width:15px;
  height:15px;
  color:var(--amber);
  margin-right:6px;
}

.c1-block table{
  width:100%;
  border-collapse:separate;
  border-spacing:0;
  background:rgba(9,16,27,0.6);
  border-radius:var(--radius-md);
  overflow:hidden;
  border:1px solid rgba(142,205,255,0.13);
  font-size:14.5px;
}
.c1-block th{
  text-align:left;
  padding:15px 18px;
  background:rgba(35,197,255,0.07);
  color:var(--brand-lite);
  font-weight:600;
  letter-spacing:0.02em;
  border-bottom:1px solid rgba(142,205,255,0.14);
}
.c1-block td{
  padding:13.5px 18px;
  color:var(--text-mid);
  border-bottom:1px solid rgba(142,205,255,0.08);
  line-height:1.8;
  vertical-align:top;
}
.c1-block td strong{
  color:var(--text-hi);
  font-weight:600;
}
.c1-block tr:last-child td{border-bottom:none}
.c1-block tbody tr:hover{
  background:rgba(255,255,255,0.018);
}

.tip-panel{
  display:flex;
  gap:16px;
  padding:24px 24px 22px;
  background:linear-gradient(135deg,rgba(35,197,255,0.07),rgba(8,129,184,0.025));
  border:1px solid rgba(35,197,255,0.18);
  border-radius:var(--radius-lg);
  margin:22px 0 14px;
  position:relative;
}
.tip-panel svg{
  color:var(--brand);
  flex-shrink:0;
  width:19px;
  height:19px;
  margin-top:3px;
}
.tip-panel p{font-size:15px;color:var(--text-mid);margin:0;line-height:1.9}
.tip-panel strong{color:var(--text-hi);font-weight:600}

.faq-list{
  display:flex;
  flex-direction:column;
  gap:14px;
  margin:24px 0 8px;
}
.faq-panel{
  border:1px solid rgba(255,255,255,0.10);
  border-radius:var(--radius-md);
  background:rgba(255,255,255,0.026);
  overflow:hidden;
  transition:border-color .25s ease,background .25s ease;
}
.faq-panel:hover{
  border-color:rgba(112,220,255,0.24);
  background:rgba(255,255,255,0.035);
}
.faq-panel summary{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:18px 20px;
  cursor:pointer;
  list-style:none;
  font-weight:600;
  font-size:16px;
  color:var(--text-hi);
  line-height:1.5;
  transition:color .2s ease;
}
.faq-panel summary::-webkit-details-marker{
  display:none;
}
.faq-panel summary em{
  font-style:normal;
  font-weight:700;
  color:var(--amber);
  margin-right:8px;
}
.faq-panel .faq-plus{
  width:26px;
  height:26px;
  flex-shrink:0;
  border-radius:8px;
  border:1px solid rgba(255,255,255,0.14);
  display:grid;
  place-items:center;
  font-size:17px;
  color:var(--brand-lite);
  transition:all .25s ease;
  background:rgba(35,197,255,0.08);
}
.faq-panel summary:hover .faq-plus{
  background:rgba(35,197,255,0.16);
  transform:rotate(90deg);
}
.faq-panel[open] .faq-plus{
  transform:rotate(45deg);
  background:rgba(35,197,255,0.22);
}
.faq-panel .faq-body{
  padding:0 22px 18px 22px;
  color:var(--text-mid);
  font-size:15px;
  line-height:1.9;
  border-top:1px dashed rgba(255,255,255,0.08);
}
.faq-panel .faq-body p{
  margin:12px 0 0;
}

.cta-zone{
  background:var(--panel-glass);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border:1px solid rgba(35,197,255,0.18);
  border-radius:20px;
  padding:36px 36px 34px;
  margin-top:38px;
  display:flex;
  gap:28px;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.1),var(--shadow-brand);
}
.cta-zone h2{
  font-size:28px;
  color:var(--text-hi);
  font-weight:760;
  line-height:1.32;
}
.cta-zone h2 span{color:var(--brand-lite)}
.cta-zone p{color:var(--text-mid);margin-top:8px;font-size:15px;line-height:1.8}
.cta-actions{
  display:flex;
  gap:14px;
  flex-wrap:wrap;
  align-items:center;
}
.cta-actions .btn{min-width:148px}
.cta-actions .btn svg{margin-left:6px}

.contact-strip{
  position:relative;
  display:grid;
  grid-template-columns:1.2fr 0.8fr;
  gap:22px;
  margin-top:30px;
  padding:30px 33px;
  border-radius:var(--radius-lg);
  background:linear-gradient(145deg,rgba(8,18,32,0.88),rgba(13,24,40,0.72));
  border:1px solid rgba(142,205,255,0.13);
}
.contact-strip .contact-meta{
  display:flex;
  align-items:center;
  gap:18px;
  flex-wrap:wrap;
}
.contact-meta-item{
  display:flex;
  align-items:center;
  gap:9px;
  color:var(--text-mid);
  font-size:14px;
}
.contact-meta-item svg{
  width:17px;
  height:17px;
  color:var(--amber);
}
.contact-title{
  font-size:16px;
  font-weight:650;
  color:var(--text-hi);
  display:flex;
  align-items:center;
}
.contact-title svg{
  width:19px;
  height:19px;
  margin-right:9px;
  color:var(--brand-lite);
}

.site-footer{
  position:relative;
  background:var(--bg1);
  border-top:1px solid rgba(142,205,255,0.12);
  padding:70px 0 24px;
  z-index:1;
}
.site-footer::before{
  content:"";
  position:absolute;
  top:0;
  left:0;
  right:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,197,255,0.35),transparent);
}
.footer-top{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1fr;
  gap:32px;
  padding-bottom:42px;
}
.footer-brand .logo{
  margin-bottom:12px;
}
.footer-desc{
  font-size:14px;
  color:var(--text-low);
  max-width:320px;
  line-height:1.9;
  margin-top:10px;
}
.footer-h{
  font-size:14px;
  color:var(--text-hi);
  font-weight:650;
  margin-bottom:15px;
  letter-spacing:0.02em;
}
.footer-list{
  display:flex;
  flex-direction:column;
  gap:10px;
}
.footer-list a{
  color:var(--text-mid);
  font-size:14px;
  transition:color .2s ease,padding-left .2s ease;
}
.footer-list a:hover{
  color:var(--brand-lite);
  padding-left:4px;
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  flex-wrap:wrap;
  border-top:1px solid rgba(255,255,255,0.07);
  padding-top:24px;
  color:var(--text-low);
  font-size:13.5px;
}
.footer-bottom p{
  display:flex;
  align-items:center;
  gap:6px;
}

@media (max-width:1200px){
  .header-inner{
    flex-wrap:nowrap;
    gap:14px;
  }
  .nav-tab{padding:9px 15px;font-size:14px}
  .header-cta .btn-label{display:none}
  .header-cta .btn{width:44px;padding:0;border-radius:50%}
}
@media (max-width:1024px){
  .container{width:min(1200px,100% - 36px)}
  .content-layout{
    grid-template-columns:1fr;
    gap:28px;
    padding:46px 0 66px;
  }
  .page-toc{
    position:relative;
    top:auto;
    border-radius:var(--radius-md);
    padding:16px 18px;
  }
  .toc-title{margin-bottom:8px;padding-bottom:9px}
  .toc-list{
    flex-direction:row;
    overflow-x:auto;
    padding-bottom:4px;
    gap:8px;
  }
  .toc-link{
    white-space:nowrap;
    padding:9px 14px;
    background:rgba(255,255,255,0.05);
    border-radius:999px;
  }
  .toc-link i{display:none}
  .toc-help{display:none}
  .footer-top{
    grid-template-columns:1fr 1fr;
    row-gap:28px;
  }
}
@media (max-width:768px){
  .container{width:min(1200px,100% - 26px)}
  .site-top-tip{font-size:12px;padding:7px 10px}
  .header-inner{
    flex-wrap:wrap;
    min-height:auto;
    padding-top:12px;
    padding-bottom:12px;
    gap:10px 14px;
  }
  .logo{
    font-size:16px;
  }
  .nav-scroll{
    order:3;
    flex-basis:100%;
    justify-content:flex-start;
    padding-bottom:2px;
  }
  .nav-tabs{
    border-radius:999px;
    width:max-content;
    padding:3px;
  }
  .nav-tab{
    padding:8px 14px;
    font-size:13.5px;
  }
  .header-cta{
    margin-left:auto;
  }
  .c1-banner{
    min-height:390px;
    padding:56px 0 38px;
  }
  .c1-banner h1{font-size:30px}
  .c1-banner p.lead{font-size:15px}
  .c1-banner .banner-chips{gap:8px}
  .c1-banner-inner{max-width:100%}
  .entry-grid{
    grid-template-columns:1fr;
  }
  .glossary-list{
    grid-template-columns:1fr;
  }
  .c1-block{
    padding-top:24px;
    padding-bottom:20px;
  }
  .c1-block h2{font-size:24px}
  .c1-block h3{font-size:18px}
  .c1-block p,.c1-block .intro-paragraph{font-size:15.5px}
  .table-wrap{overflow-x:auto}
  .c1-block table{min-width:560px}
  .cta-zone{
    flex-direction:column;
    align-items:flex-start;
    padding:26px 22px 24px;
  }
  .cta-zone h2{font-size:23px}
  .cta-actions .btn{
    flex:1 1 100%;
    width:100%;
    min-height:48px;
  }
  .contact-strip{
    grid-template-columns:1fr;
    padding:22px 20px;
  }
  .footer-top{
    grid-template-columns:1fr;
  }
  .footer-bottom{
    flex-direction:column;
    align-items:flex-start;
  }
}
@media (max-width:480px){
  .c1-banner h1{
    font-size:26px;
  }
  .c1-banner p.lead{
    font-size:14.5px;
  }
  .content-figure img{
    height:200px;
  }
  .c1-cta .cta-actions{
    flex-direction:column;
    width:100%;
  }
  .btn{
    width:100%;
  }
}

/* roulang page: category3 */
:root {
  --bg0: #05080F;
  --bg1: #0A1220;
  --bg2: #0E1B2E;
  --panel-glass: rgba(13, 24, 40, 0.62);
  --panel-solid: #101C2C;
  --line-light: rgba(142, 205, 255, 0.16);
  --line-strong: rgba(112, 220, 255, 0.32);
  --brand: #23C5FF;
  --brand-lite: #86E1FF;
  --brand-deep: #0881B8;
  --amber: #F5B455;
  --amber-lite: #FFDA99;
  --positive: #3EDC9F;
  --danger: #FF6A7A;
  --text-hi: #F0F6FF;
  --text-mid: #A8BACB;
  --text-low: #62778A;
  --radius-s: 6px;
  --radius-m: 12px;
  --radius-l: 16px;
  --shadow-float: 0 8px 30px rgba(0, 0, 0, 0.26);
  --shadow-brand: 0 0 0 1px rgba(35,197,255,0.22), 0 0 22px rgba(35,197,255,0.16);
  --shadow-amber: 0 0 18px rgba(245, 180, 85, 0.18);
  --font-sys: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "HarmonyOS Sans", "Segoe UI", sans-serif;
  --header-h: 72px;
}

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

html {
  scroll-behavior: smooth;
  background: var(--bg0);
}

body {
  margin: 0;
  background:
    radial-gradient(640px 420px at 6% -8%, rgba(35, 197, 255, 0.12), transparent 70%),
    radial-gradient(760px 480px at 100% 110%, rgba(245, 180, 85, 0.07), transparent 70%),
    var(--bg0);
  color: var(--text-hi);
  font-family: var(--font-sys);
  font-size: 16px;
  line-height: 1.85;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.022) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.022) 1px, transparent 1px);
  background-size: 42px 42px;
  z-index: 0;
}

body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background: radial-gradient(78% 64% at 50% 20%, transparent 38%, rgba(5, 8, 15, 0.72) 100%);
  z-index: 0;
}

body > * {
  position: relative;
  z-index: 1;
}

img {
  max-width: 100%;
  display: block;
  border: 0;
}

a {
  color: inherit;
  text-decoration: none;
  transition: color .22s ease, border-color .22s ease, background .22s ease, box-shadow .22s ease, transform .22s ease;
}

h1, h2, h3, h4, p, ul, ol, dl, blockquote {
  margin-top: 0;
}

h1, h2, h3, h4 {
  line-height: 1.3;
  font-weight: 700;
}

ul, ol {
  padding: 0;
  list-style-position: outside;
}

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

.skip-link {
  position: absolute;
  top: -80px;
  left: 20px;
  background: var(--panel-solid);
  color: var(--brand-lite);
  padding: 10px 16px;
  border-radius: var(--radius-s);
  z-index: 999;
}

.skip-link:focus {
  top: 10px;
}

.container {
  width: min(1200px, calc(100% - 48px));
  margin-inline: auto;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--brand-lite);
  letter-spacing: .08em;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  line-height: 1.4;
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 1px;
  background: var(--brand);
}

.brand-glow {
  color: var(--brand-lite);
  text-shadow: 0 0 20px rgba(35, 197, 255, 0.22);
}

/* ---------- 顶部细提示条 ---------- */
.site-topline {
  background: rgba(10, 18, 32, 0.92);
  border-bottom: 1px solid rgba(142, 205, 255, 0.1);
  padding: 7px 0;
}

.topline-inner {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-mid);
  text-align: center;
}

.topline-inner svg {
  flex: 0 0 auto;
}

/* ---------- 站点头部 / 导航 ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid rgba(142, 205, 255, 0.08);
  background: rgba(5, 8, 15, 0.82);
  -webkit-backdrop-filter: blur(18px);
  backdrop-filter: blur(18px);
}

.header-inner {
  min-height: var(--header-h);
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 16px;
  padding-top: 10px;
  padding-bottom: 10px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex: 0 0 auto;
  border-radius: var(--radius-m);
}

.logo-mark {
  width: 38px;
  height: 38px;
  position: relative;
  display: grid;
  place-items: center;
  font-size: 15px;
  font-weight: 900;
  color: var(--bg0);
  background: linear-gradient(135deg, var(--brand-lite), var(--brand-deep));
  border-radius: 10px 4px 10px 4px;
  clip-path: polygon(0 0, 82% 0, 100% 18%, 100% 100%, 18% 100%, 0 82%);
}

.logo-mark span {
  display: block;
  position: relative;
  z-index: 1;
}

.logo-mark::after {
  content: "";
  position: absolute;
  inset: 2px;
  border: 1px solid rgba(255, 255, 255, 0.4);
  border-radius: inherit;
  clip-path: inherit;
}

.logo-word {
  font-size: 19px;
  font-weight: 800;
  letter-spacing: .02em;
  color: var(--text-hi);
  line-height: 1.2;
}

.logo-word em {
  font-style: normal;
  color: var(--brand-lite);
}

.logo small {
  display: block;
  font-size: 10px;
  color: var(--text-low);
  letter-spacing: .18em;
  font-weight: 600;
}

.nav-tabs {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 4px;
  background: rgba(255, 255, 255, 0.035);
  border: 1px solid var(--line-light);
  border-radius: 44px;
  min-width: 0;
  justify-self: end;
}

.nav-tab {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 7px 13px;
  border-radius: 44px;
  font-size: 14px;
  color: var(--text-mid);
  white-space: nowrap;
  border: 1px solid transparent;
  line-height: 1.4;
}

.nav-tab:hover {
  color: var(--text-hi);
  border-color: rgba(142, 205, 255, 0.25);
}

.nav-tab:focus-visible {
  outline: 2px solid rgba(35, 197, 255, 0.5);
  outline-offset: 2px;
}

.nav-tab:active {
  transform: translateY(1px);
}

.nav-tab.active {
  background: rgba(134, 225, 255, 0.94);
  color: #06141E;
  box-shadow: 0 0 0 3px rgba(35, 197, 255, 0.08);
}

.nav-tab.active svg {
  color: var(--bg0);
}

.header-cta {
  flex: 0 0 auto;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: 11px;
  border: 1px solid transparent;
  min-height: 42px;
  padding: 0 18px;
  font-family: inherit;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: .01em;
  cursor: pointer;
  transition: all .24s ease;
  text-align: center;
}

.btn svg {
  width: 16px;
  height: 16px;
  flex: 0 0 auto;
}

.btn:focus-visible,
input:focus-visible {
  outline: 2px solid rgba(35, 197, 255, 0.5);
  outline-offset: 2px;
}

.btn:active {
  transform: translateY(1px);
}

.btn-primary {
  background: linear-gradient(135deg, #1CBDF7, #0B90D6);
  color: #03121D;
  box-shadow: var(--shadow-brand);
}

.btn-primary:hover {
  background: linear-gradient(135deg, #86E1FF, #0EA9E8);
  color: #02121F;
  box-shadow: 0 0 0 1px rgba(35,197,255,.3), 0 0 28px rgba(35, 197, 255, 0.28);
}

.btn-primary:active {
  box-shadow: inset 0 2px 5px rgba(0, 0, 0, 0.12), 0 0 20px rgba(35,197,255,.18);
}

.btn-amber {
  background: linear-gradient(135deg, var(--amber), #C67C2D);
  color: #171207;
  box-shadow: var(--shadow-amber);
}

.btn-amber:hover {
  background: linear-gradient(135deg, var(--amber-lite), var(--amber));
  box-shadow: 0 0 0 1px rgba(245,180,85,.28), 0 0 24px rgba(245, 180, 85, 0.28);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: rgba(255, 255, 255, 0.18);
  color: var(--text-hi);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.06);
  border-color: var(--line-strong);
  box-shadow: inset 0 0 0 1px rgba(255,255,255,.02);
}

.btn-lg {
  min-height: 48px;
  padding: 0 24px;
  border-radius: 13px;
  font-size: 15px;
}

.btn-block {
  width: 100%;
}

/* ---------- 分类页头 ---------- */
.category-hero {
  position: relative;
  border-bottom: 1px solid var(--line-light);
  padding: 66px 0 52px;
  overflow: hidden;
}

.category-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(rgba(142,205,255,.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(142,205,255,.035) 1px, transparent 1px);
  background-size: 34px 34px;
  -webkit-mask-image: radial-gradient(70% 80% at 50% 30%, #000 42%, transparent 86%);
  mask-image: radial-gradient(70% 80% at 50% 30%, #000 42%, transparent 86%);
}

.breadcrumb {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-low);
  margin-bottom: 18px;
  background: rgba(13, 24, 40, 0.58);
  border: 1px solid var(--line-light);
  padding: 5px 12px;
  border-radius: 40px;
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
}

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

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

.breadcrumb svg {
  width: 13px;
  height: 13px;
}

.category-hero-inner {
  display: grid;
  grid-template-columns: minmax(0, 1.02fr) minmax(320px, 0.98fr);
  gap: 54px;
  align-items: center;
}

.category-hero h1 {
  margin: 14px 0 18px;
  font-size: clamp(32px, 4vw, 46px);
  line-height: 1.22;
  letter-spacing: -0.02em;
}

.category-hero h1 .hero-secondary {
  display: block;
  color: var(--brand-lite);
  text-shadow: 0 0 24px rgba(35, 197, 255, 0.16);
}

.hero-topic-label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  overflow: hidden;
  background: rgba(35, 197, 255, 0.08);
  border: 1px solid rgba(35, 197, 255, 0.2);
  color: var(--brand-lite);
  border-radius: 40px;
  font-size: 12px;
  padding: 6px 14px;
  font-weight: 600;
  letter-spacing: .06em;
}

.hero-topic-label svg {
  width: 14px;
  height: 14px;
}

.hero-desc {
  color: var(--text-mid);
  font-size: 17px;
  line-height: 1.9;
  margin-bottom: 26px;
  max-width: 620px;
}

.hero-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  align-items: center;
}

.hero-metric-card {
  border: 1px solid var(--line-light);
  background: rgba(13, 24, 40, 0.46);
  border-radius: var(--radius-l);
  padding: 18px;
  box-shadow: 0 10px 36px rgba(0, 0, 0, 0.15);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  position: relative;
  overflow: hidden;
}

.hero-metric-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, rgba(255,255,255,.18), transparent 55%);
}

.metric-line {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px 14px;
}

.metric-cell {
  border: 1px solid rgba(142, 205, 255, 0.12);
  border-radius: var(--radius-s);
  background: rgba(255,255,255,.02);
  padding: 10px 12px;
}

.metric-cell span {
  display: block;
  color: var(--text-low);
  font-size: 12px;
  line-height: 1.5;
}

.metric-cell strong {
  display: block;
  color: var(--text-hi);
  font-size: 15px;
  line-height: 1.5;
}

.metric-side-note {
  margin-top: 12px;
  display: flex;
  gap: 8px;
  align-items: center;
  color: var(--text-mid);
  font-size: 13px;
  background: rgba(255,255,255,.02);
  padding: 8px 11px;
  border-radius: var(--radius-s);
  border-left: 2px solid var(--brand);
}

/* ---------- 通用分区 ---------- */
.section {
  padding-top: 84px;
  padding-bottom: 84px;
}

.split-section {
  padding: 80px 0;
  border-bottom: 1px solid rgba(142, 205, 255, 0.1);
  position: relative;
}

.split-section::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.018) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.018) 1px, transparent 1px);
  background-size: 36px 36px;
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 46%, #000 54%, transparent 100%);
  mask-image: linear-gradient(180deg, transparent 0%, #000 46%, #000 54%, transparent 100%);
}

.split-section > .container {
  position: relative;
}

.split-grid {
  display: grid;
  grid-template-columns: minmax(0, 46%) 1fr;
  gap: 52px;
  align-items: center;
}

.split-grid.alternate-reverse .split-media {
  order: 2;
}

.split-media {
  position: relative;
  border-radius: 18px;
}

.media-frame {
  position: relative;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid var(--line-light);
  background: var(--panel-solid);
  box-shadow: var(--shadow-float);
}

.media-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255,255,255,.1);
  border-radius: inherit;
  pointer-events: none;
}

.media-frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform .6s ease;
}

.media-frame:hover img {
  transform: scale(1.022);
}

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

.media-caption::before {
  content: "";
  width: 14px;
  height: 1px;
  background: var(--line-strong);
}

.split-copy {
  max-width: 610px;
}

.split-copy h2 {
  font-size: clamp(24px, 2.2vw, 32px);
  color: var(--text-hi);
  margin: 12px 0 18px;
  letter-spacing: -0.01em;
}

.split-copy > p {
  color: var(--text-mid);
  font-size: 16px;
  margin-bottom: 18px;
}

.field-list {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-top: 18px;
}

.field-list > div {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--line-light);
  border-radius: var(--radius-m);
  padding: 14px 16px;
  transition: border-color .2s ease, background .2s ease;
}

.field-list > div:hover {
  background: rgba(255,255,255,.045);
  border-color: rgba(35,197,255,.26);
}

.field-list dt {
  font-size: 13px;
  color: var(--brand-lite);
  font-weight: 700;
  margin-bottom: 4px;
  letter-spacing: .03em;
}

.field-list dd {
  margin: 0;
  font-size: 14px;
  color: var(--text-mid);
  line-height: 1.7;
}

/* ---------- 日期轴 / 时间线 ---------- */
.timeline-block {
  position: relative;
  padding-left: 24px;
  margin-bottom: 14px;
}

.timeline-block::before {
  content: "";
  position: absolute;
  top: 0;
  left: 2px;
  width: 2px;
  bottom: 0;
  background: rgba(142,205,255,.18);
}

.timeline-item {
  position: relative;
  padding-left: 24px;
  margin-bottom: 14px;
}

.timeline-item::before {
  content: "";
  position: absolute;
  left: -25px;
  top: 9px;
  width: 10px;
  height: 10px;
  background: var(--brand);
  box-shadow: 0 0 0 4px rgba(35,197,255,.12);
  border-radius: 50%;
}

.timeline-item strong {
  color: var(--text-hi);
  font-size: 16px;
  display: block;
  font-weight: 700;
}

.timeline-item span {
  color: var(--text-mid);
  display: block;
  font-size: 15px;
  line-height: 1.75;
}

.timeline-note {
  margin-top: 16px;
  border-left: 2px solid var(--amber);
  background: rgba(245,180,85,.05);
  border-radius: 0 10px 10px 0;
  padding: 12px 16px;
  color: var(--text-mid);
  font-size: 14px;
}

/* ---------- 数字高亮带 ---------- */
.context-band {
  position: relative;
  padding: 66px 0;
  overflow: hidden;
  border-bottom: 1px solid var(--line-light);
  background-image: linear-gradient(180deg, rgba(5,8,15,.95), rgba(5,8,15,.86)), url("/assets/images/backpic/back-2.webp");
  background-size: cover;
  background-position: center;
}

.context-band .container {
  position: relative;
}

.context-band h2 {
  font-size: clamp(24px, 2.3vw, 32px);
  color: var(--text-hi);
  margin: 14px 0 16px;
}

.context-band p {
  color: var(--text-mid);
  max-width: 780px;
}

.stat-strip {
  display: grid;
  grid-template-columns: 0.9fr 1.2fr 1.6fr;
  background: rgba(10,18,32,.66);
  border: 1px solid var(--line-light);
  border-radius: var(--radius-l);
  margin-top: 28px;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-float);
}

.stat-strip-item {
  padding: 20px;
  border-right: 1px solid var(--line-light);
}

.stat-strip-item:last-child {
  border-right: 0;
  background: rgba(16,28,44,.35);
}

.stat-number {
  display: flex;
  align-items: baseline;
  gap: 4px;
  font-size: 16px;
  color: var(--brand-lite);
  font-weight: 800;
}

.stat-number em {
  font-style: normal;
  font-size: 28px;
  color: var(--text-hi);
  margin-right: 2px;
}

.stat-name {
  font-size: 16px;
  color: var(--text-hi);
  font-weight: 700;
  margin-bottom: 5px;
}

.stat-desc {
  font-size: 13px;
  color: var(--text-low);
  line-height: 1.7;
}

.tag-line {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 14px;
}

.tag-chip {
  font-size: 13px;
  border: 1px solid rgba(142,205,255,.2);
  background: rgba(35,197,255,.07);
  color: var(--text-mid);
  padding: 5px 11px;
  border-radius: 40px;
  cursor: default;
}

/* ---------- 操作清单 ---------- */
.check-sheet {
  padding: 76px 0 88px;
  border-bottom: 1px solid var(--line-light);
}

.check-sheet-header {
  max-width: 760px;
  margin-bottom: 30px;
}

.check-sheet-header h2 {
  font-size: clamp(26px, 2.4vw, 34px);
}

.check-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.check-card {
  background: rgba(13,24,40,.42);
  border: 1px solid var(--line-light);
  border-radius: var(--radius-l);
  padding: 20px 22px;
  min-height: 142px;
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 8px;
  transition: border-color .24s ease, background .24s ease;
}

.check-card:hover {
  border-color: rgba(35,197,255,.32);
  background: rgba(13,24,40,.74);
}

.check-card .step-no {
  font-size: 12px;
  color: var(--brand);
  letter-spacing: .1em;
  font-weight: 700;
}

.check-card h3 {
  font-size: 18px;
  color: var(--text-hi);
  margin: 0;
  line-height: 1.4;
}

.check-card p {
  color: var(--text-mid);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 0;
}

/* ---------- 分类导航 / 相关分类 ---------- */
.cross-cat {
  padding: 70px 0 88px;
}

.cross-cat-intro {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

.cross-cat h2 {
  font-size: clamp(24px, 2vw, 30px);
}

.cross-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.cross-chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(13,24,40,.56);
  border: 1px solid var(--line-light);
  border-radius: 40px;
  padding: 9px 16px;
  font-size: 14px;
  color: var(--text-hi);
  line-height: 1.5;
}

.cross-chip.current {
  color: var(--text-low);
  border-color: rgba(142,205,255,.09);
  cursor: default;
}

.cross-chip:not(.current):hover {
  border-color: var(--line-strong);
  background: rgba(35,197,255,.08);
  color: var(--brand-lite);
  transform: translateY(-1px);
}

/* ---------- FAQ ---------- */
.faq-section {
  padding: 80px 0;
  background: rgba(10,18,32,.55);
  border-bottom: 1px solid var(--line-light);
}

.faq-wrap {
  display: grid;
  grid-template-columns: 0.8fr 1.6fr;
  gap: 48px;
}

.faq-heading h2 {
  font-size: clamp(26px, 2vw, 32px);
  margin: 12px 0 14px;
  color: var(--text-hi);
}

.faq-heading p {
  color: var(--text-mid);
  font-size: 15px;
}

.faq-list {
  background: rgba(13,24,40,.46);
  border: 1px solid var(--line-light);
  border-radius: 18px;
  overflow: hidden;
}

.faq-item {
  border-bottom: 1px solid rgba(142,205,255,.12);
}

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

.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 20px;
  cursor: pointer;
  list-style: none;
  font-size: 16px;
  font-weight: 700;
  color: var(--text-hi);
  line-height: 1.7;
  transition: background .25s ease, color .25s ease;
}

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

.faq-item summary:hover {
  background: rgba(35,197,255,.06);
}

.faq-item summary .faq-icon {
  width: 22px;
  height: 22px;
  flex: 0 0 auto;
  color: var(--brand);
  display: grid;
  place-items: center;
  border: 1px solid rgba(35,197,255,.25);
  border-radius: 50%;
  position: relative;
  background: transparent;
}

.faq-icon::before {
  content: "";
  width: 8px;
  height: 8px;
  border-style: solid;
  border-width: 0 2px 2px 0;
  transform: rotate(45deg) translate(-1px, 1px);
  display: block;
}

.faq-item[open] .faq-icon {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 20px 20px 20px;
  color: var(--text-mid);
  font-size: 16px;
  line-height: 1.9;
  max-width: 88%;
}

/* ---------- CTA 结尾 ---------- */
.cta-ribbon {
  padding: 66px 0 80px;
}

.cta-panel {
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 30px;
  background:
    radial-gradient(500px 190px at 12% 0%, rgba(35,197,255,.16), transparent 65%),
    radial-gradient(450px 220px at 92% 20%, rgba(245,180,85,.1), transparent 55%),
    rgba(13,24,40,.7);
  border: 1px solid var(--line-light);
  border-radius: 22px;
  padding: 34px 38px;
}

.cta-panel .cta-copy h2 {
  font-size: clamp(24px, 2.1vw, 30px);
  margin-bottom: 10px;
}

.cta-panel .cta-copy p {
  color: var(--text-mid);
  margin-bottom: 0;
  font-size: 15px;
  max-width: 640px;
}

.cta-panel .cta-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: flex-end;
}

.corner-note {
  position: absolute;
  top: 0;
  right: 0;
  background: rgba(245,180,85,.12);
  color: var(--amber-lite);
  font-size: 11px;
  padding: 4px 12px;
  border-radius: 0 20px 0 10px;
  letter-spacing: .05em;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: rgba(5, 8, 15, 0.96);
  border-top: 1px solid rgba(142, 205, 255, 0.12);
  padding-top: 50px;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 36px;
  padding-bottom: 34px;
}

.footer-brand .logo {
  margin-bottom: 14px;
}

.footer-desc {
  color: var(--text-mid);
  font-size: 14px;
  max-width: 320px;
  line-height: 1.9;
  margin-left: 50px;
}

.footer-h {
  font-size: 15px;
  font-weight: 700;
  color: var(--text-hi);
  margin-bottom: 12px;
}

.footer-list {
  list-style: none;
  margin: 0;
  display: grid;
  gap: 8px;
}

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

.footer-list a:hover {
  color: var(--brand-lite);
}

.footer-bottom {
  border-top: 1px solid rgba(142, 205, 255, 0.08);
  padding: 16px 0;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-low);
}

.footer-bottom p {
  margin: 0;
}

/* ---------- focus / 可访问性 ---------- */
a:focus {
  outline: 2px solid rgba(35, 197, 255, 0.5);
  outline-offset: 2px;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1199px) {
  .header-inner {
    grid-template-columns: 1fr auto;
  }

  .logo {
    grid-column: 1;
    grid-row: 1;
  }

  .header-cta {
    grid-column: 2;
    grid-row: 1;
  }

  .nav-tabs {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-self: stretch;
    overflow-x: auto;
    padding: 4px;
    scrollbar-width: thin;
    scrollbar-color: rgba(142,205,255,.18) transparent;
  }

  .nav-tabs::-webkit-scrollbar {
    height: 4px;
  }

  .nav-tabs::-webkit-scrollbar-thumb {
    background: rgba(142,205,255,.2);
    border-radius: 8px;
  }

  .category-hero-inner {
    grid-template-columns: 1fr;
    gap: 26px;
  }

  .hero-metric-card {
    max-width: 620px;
  }

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

@media (max-width: 991px) {
  .split-section {
    padding: 54px 0 60px;
  }

  .split-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .split-grid.alternate-reverse .split-media {
    order: 0;
  }

  .media-frame img {
    max-height: 360px;
    aspect-ratio: 16 / 10;
  }

  .faq-wrap {
    grid-template-columns: 1fr;
    gap: 22px;
  }

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

  .cta-panel .cta-btns {
    justify-content: flex-start;
  }
}

@media (max-width: 760px) {
  .section,
  .split-section {
    padding-top: 40px;
    padding-bottom: 40px;
  }

  .context-band {
    padding: 42px 0;
  }

  .check-sheet {
    padding: 44px 0 56px;
  }

  .faq-section {
    padding: 46px 0;
  }

  .category-hero {
    padding: 48px 0 42px;
  }

  .toast-line,
  .topline-inner {
    font-size: 12px;
    flex-direction: column;
  }

  .category-hero h1 {
    font-size: 30px;
  }

  .btn-lg {
    width: 100%;
    margin: 0 0 4px 0;
  }

  .hero-btns {
    display: grid;
    grid-template-columns: 1fr;
  }

  .metric-line {
    grid-template-columns: 1fr;
  }

  .field-list {
    grid-template-columns: 1fr;
  }

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

  .stat-strip {
    grid-template-columns: 1fr;
  }

  .stat-strip-item {
    border: 0;
    border-bottom: 1px solid var(--line-light);
  }

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

  .faq-answer {
    max-width: 100%;
  }

  .cta-ribbon {
    padding: 38px 0;
  }

  .cta-panel {
    border-radius: 14px;
    padding: 24px 18px;
  }

  .cta-btns .btn {
    width: 100%;
  }

  .site-footer {
    padding-top: 34px;
  }

  .footer-top {
    grid-template-columns: 1fr;
    gap: 24px;
    padding-bottom: 20px;
  }

  .footer-desc {
    margin-left: 0;
  }

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

@media (min-width: 1200px) {
  .nav-tabs {
    justify-self: end;
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}

/* roulang page: category2 */
:root{
  --bg0:#05080F;
  --bg1:#0A1220;
  --bg2:#0E1B2E;
  --panel-glass:rgba(13,24,40,0.62);
  --panel-solid:#101C2C;
  --line-light:rgba(142,205,255,0.16);
  --line-strong:rgba(112,220,255,0.32);
  --brand:#23C5FF;
  --brand-lite:#86E1FF;
  --brand-deep:#0881B8;
  --amber:#F5B455;
  --amber-lite:#FFDA99;
  --positive:#3EDC9F;
  --danger:#FF6A7A;
  --text-hi:#F0F6FF;
  --text-mid:#A8BACB;
  --text-low:#62778A;
  --r-sm:8px;
  --r-md:14px;
  --r-lg:20px;
  --shadow-float:0 8px 30px rgba(0,0,0,0.26);
  --glow-brand:0 0 0 1px rgba(35,197,255,0.22),0 0 22px rgba(35,197,255,0.14);
  --font-cn:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans",sans-serif;
}
*{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  min-height:100vh;
  font-family:var(--font-cn);
  background:var(--bg0);
  color:var(--text-hi);
  line-height:1.8;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
  position:relative;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background:
    radial-gradient(900px 620px at 88% -10%,rgba(35,197,255,0.055),transparent 60%),
    radial-gradient(720px 520px at -5% 100%,rgba(245,180,85,0.04),transparent 60%);
}
img{display:block;max-width:100%;border:0}
a{color:inherit;text-decoration:none}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit}
.container{
  width:min(calc(100% - 48px),1200px);
  margin-inline:auto;
}
main{position:relative;z-index:1}

.top-note{
  background:rgba(8,13,22,0.82);
  border-bottom:1px solid rgba(142,205,255,0.1);
  font-size:13px;
  color:var(--text-mid);
  padding:8px 0;
  letter-spacing:0.02em;
}
.top-note .container{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.top-note strong{color:var(--brand-lite);font-weight:600}
.top-note span{color:var(--text-low)}
@media(max-width:680px){
  .top-note span{display:none}
}

.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(5,8,15,0.68);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border-bottom:1px solid rgba(142,205,255,0.12);
}
.header-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:18px;
  padding:14px 0;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:12px;
  flex-shrink:0;
}
.logo-mark{
  width:42px;
  height:42px;
  display:grid;
  place-items:center;
  border-radius:12px;
  border:1px solid rgba(35,197,255,0.42);
  background:linear-gradient(145deg,#0A1926,#07101C);
  color:var(--brand-lite);
  font-weight:800;
  font-size:14px;
  letter-spacing:0.04em;
  box-shadow:0 0 0 1px rgba(35,197,255,0.1),0 0 18px rgba(35,197,255,0.08);
}
.logo-word{
  font-size:19px;
  font-weight:800;
  letter-spacing:0.03em;
  color:var(--text-hi);
  line-height:1.2;
}
.logo-word small{display:block;font-size:11px;color:var(--text-low);font-weight:500;margin-top:3px}
.header-nav{
  display:flex;
  align-items:center;
  justify-content:center;
  flex:1;
}
.nav-tabs{
  display:flex;
  align-items:center;
  gap:4px;
  padding:4px;
  background:rgba(13,24,40,0.52);
  border:1px solid var(--line-light);
  border-radius:40px;
  -webkit-backdrop-filter:blur(10px);
  backdrop-filter:blur(10px);
  max-width:100%;
}
.nav-tab{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:38px;
  padding:0 15px;
  border-radius:40px;
  font-size:14px;
  line-height:1;
  color:var(--text-mid);
  white-space:nowrap;
  transition:color 0.2s ease,background 0.2s ease,box-shadow 0.2s ease;
}
.nav-tab:hover{color:var(--text-hi);background:rgba(255,255,255,0.04)}
.nav-tab.active{
  background:var(--brand-lite);
  color:#02121D;
  font-weight:700;
}
.header-cta{
  flex-shrink:0;
  margin-left:auto;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border:none;
  cursor:pointer;
  border-radius:12px;
  font-weight:700;
  transition:transform 0.18s ease,box-shadow 0.2s ease,background 0.2s ease,color 0.2s ease,border-color 0.2s ease;
  text-align:center;
}
.btn svg{width:16px;height:16px;flex-shrink:0}
a.btn{line-height:1.2}
.btn-primary{
  background:linear-gradient(135deg,#1CBDF7,#0B90D6);
  color:#04121E;
  box-shadow:0 0 0 1px rgba(35,197,255,0.24),0 0 22px rgba(35,197,255,0.16);
}
.btn-primary:hover{
  transform:translateY(-1px);
  box-shadow:0 0 0 1px rgba(35,197,255,0.4),0 0 30px rgba(35,197,255,0.24);
}
.btn-primary:active{
  transform:translateY(1px);
  box-shadow:inset 0 1px 4px rgba(0,0,0,0.2),0 0 0 1px rgba(35,197,255,0.28);
}
.btn-ghost{
  background:transparent;
  border:1px solid rgba(255,255,255,0.18);
  color:var(--text-hi);
}
.btn-ghost:hover{
  border-color:rgba(134,225,255,0.7);
  box-shadow:0 0 18px rgba(35,197,255,0.12);
}
.btn-ghost:active{
  transform:translateY(1px);
  box-shadow:inset 0 1px 6px rgba(0,0,0,0.2);
}
.btn-small{
  min-height:38px;
  padding:0 16px;
  font-size:14px;
}
.header-cta{
  height:38px;
  padding:0 16px;
  border-radius:40px;
}
.header-cta .btn-label{white-space:nowrap}

.page-hero{
  position:relative;
  min-height:44vh;
  padding:76px 0 60px;
  display:flex;
  align-items:center;
  overflow:hidden;
  border-bottom:1px solid var(--line-light);
  background:
    linear-gradient(180deg,rgba(5,8,15,0.76) 0%,rgba(7,13,22,0.68) 70%,rgba(5,8,15,0.96) 100%),
    url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
}
.page-hero::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(255,255,255,0.024) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,0.024) 1px,transparent 1px);
  background-size:44px 44px;
  opacity:0.4;
}
.page-hero .container{position:relative;z-index:2}
.hero-kicker{
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:14px;
  letter-spacing:0.08em;
  color:var(--brand-lite);
  font-weight:600;
  margin-bottom:20px;
}
.hero-kicker::before{
  content:"";
  width:26px;
  height:1px;
  background:var(--brand);
  box-shadow:0 0 8px rgba(35,197,255,0.6);
}
.hero-title{
  max-width:820px;
  font-size:46px;
  line-height:1.25;
  font-weight:900;
  letter-spacing:0.02em;
}
.hero-title .txt-brand{
  display:inline-block;
  background:linear-gradient(100deg,#DEFAFF 0%,#86E1FF 45%,#23C5FF 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
  -webkit-text-fill-color:transparent;
}
.hero-lead{
  max-width:680px;
  margin-top:24px;
  color:var(--text-mid);
  font-size:18px;
  line-height:1.9;
}
.hero-tags{
  margin-top:30px;
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.chip{
  display:inline-flex;
  align-items:center;
  min-height:32px;
  padding:4px 13px;
  border-radius:32px;
  font-size:13px;
  color:var(--text-mid);
  border:1px solid var(--line-light);
  background:rgba(13,24,40,0.5);
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  transition:border-color 0.2s ease,color 0.2s ease;
}
.chip:hover{
  border-color:var(--line-strong);
  color:var(--text-hi);
}
.hero-actions{
  margin-top:32px;
  display:flex;
  flex-wrap:wrap;
  gap:14px;
}
.hero-actions .btn{min-height:48px;padding:0 26px;border-radius:14px;font-size:16px}

.stats-band{
  background:rgba(8,14,24,0.82);
  border-bottom:1px solid var(--line-light);
  padding:26px 0;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
}
.stat-item{
  display:flex;
  align-items:center;
  justify-content:center;
  gap:16px;
  padding:8px 10px;
}
.stat-num{
  font-size:36px;
  font-weight:900;
  line-height:1;
  color:var(--brand-lite);
  font-family:"DIN Alternate","Bahnschrift","Arial Narrow",sans-serif;
  white-space:nowrap;
}
.stat-num em{
  font-style:normal;
  font-size:18px;
  color:var(--brand);
  margin-left:2px;
  font-weight:700;
}
.stat-label{
  color:var(--text-mid);
  font-size:14px;
}

.block{padding:88px 0}
.section-head{
  margin-bottom:40px;
}
.section-head .eyebrow{
  display:flex;
  align-items:center;
  gap:10px;
  color:var(--brand-lite);
  font-weight:600;
  font-size:14px;
  letter-spacing:0.08em;
  margin-bottom:14px;
}
.section-head .eyebrow::before{
  content:"";
  width:20px;
  height:1px;
  background:var(--brand);
}
.section-head h2{
  font-size:34px;
  line-height:1.3;
  font-weight:900;
  letter-spacing:0.01em;
}
.section-head .desc{
  margin-top:14px;
  color:var(--text-mid);
  max-width:760px;
  font-size:16px;
}
.head-row{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:26px;
  flex-wrap:wrap;
  margin-bottom:32px;
}
.head-row h2{font-size:34px;font-weight:900}
.head-row p{color:var(--text-mid);max-width:500px;font-size:16px}
.text-line{
  border:0;
  height:1px;
  margin:24px 0;
  background:linear-gradient(90deg,var(--line-light),transparent);
}

.board-wrap{
  background:linear-gradient(180deg,rgba(8,14,24,0.35),rgba(8,14,24,0.15));
  border-top:1px solid rgba(142,205,255,0.08);
  border-bottom:1px solid rgba(142,205,255,0.08);
}
.scroll-track{
  display:flex;
  gap:18px;
  overflow-x:auto;
  padding-bottom:18px;
  scroll-snap-type:x proximity;
  scrollbar-width:thin;
  scrollbar-color:rgba(35,197,255,0.26) transparent;
}
.scroll-track::-webkit-scrollbar{height:8px}
.scroll-track::-webkit-scrollbar-track{background:rgba(255,255,255,0.02);border-radius:99px}
.scroll-track::-webkit-scrollbar-thumb{background:rgba(35,197,255,0.26);border-radius:99px}
.scroll-card{
  position:relative;
  flex:0 0 402px;
  scroll-snap-align:start;
  border-radius:var(--r-lg);
  border:1px solid var(--line-light);
  background:
    linear-gradient(180deg,rgba(255,255,255,0.025),transparent 40%),
    rgba(13,24,40,0.62);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.08);
  overflow:hidden;
  transition:transform 0.25s ease,border-color 0.25s ease,box-shadow 0.25s ease;
}
.scroll-card:hover{
  transform:translateY(-6px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-float),inset 0 1px 0 rgba(255,255,255,0.09);
}
.scroll-media{
  position:relative;
  height:190px;
  overflow:hidden;
  border-bottom:1px solid var(--line-light);
}
.scroll-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  filter:saturate(0.9) contrast(1.05);
  transition:transform 0.4s ease;
}
.scroll-card:hover .scroll-media img{transform:scale(1.03)}
.scroll-media::after{
  content:"";
  position:absolute;
  inset:auto 0 0 0;
  height:70%;
  background:linear-gradient(180deg,transparent,rgba(5,10,17,0.9));
}
.card-no{
  position:absolute;
  left:16px;
  bottom:12px;
  z-index:2;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-width:54px;
  height:30px;
  padding:0 10px;
  border-radius:30px;
  background:rgba(5,10,17,0.7);
  border:1px solid rgba(134,225,255,0.4);
  color:var(--brand-lite);
  font-size:15px;
  font-weight:800;
  font-family:"DIN Alternate","Bahnschrift",sans-serif;
  -webkit-backdrop-filter:blur(8px);
  backdrop-filter:blur(8px);
  box-shadow:0 0 18px rgba(35,197,255,0.08);
}
.scroll-content{padding:22px}
.card-tag{
  display:inline-block;
  font-size:12px;
  letter-spacing:0.07em;
  color:var(--amber);
  padding:3px 9px;
  border:1px solid rgba(245,180,85,0.2);
  border-radius:30px;
  background:rgba(245,180,85,0.06);
  margin-bottom:12px;
}
.scroll-content h3{font-size:21px;line-height:1.45;font-weight:800;margin-bottom:10px}
.scroll-content p{font-size:15px;color:var(--text-mid);line-height:1.85}
.scroll-content .link-meta{
  margin-top:16px;
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--text-low);
  font-size:13px;
}
@media(max-width:520px){
  .scroll-card{flex-basis:330px}
}

.compare-panel{
  border-radius:var(--r-lg);
  border:1px solid var(--line-light);
  background:linear-gradient(180deg,rgba(10,18,32,0.6),rgba(7,13,22,0.9));
  padding:12px 0;
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
}
.table-shell{
  overflow-x:auto;
  padding:6px 0;
}
.table-shell::-webkit-scrollbar{height:7px}
.table-shell::-webkit-scrollbar-thumb{background:rgba(35,197,255,0.2);border-radius:99px}
.compare-panel table{
  width:100%;
  min-width:780px;
  border-collapse:collapse;
  table-layout:fixed;
}
.compare-panel th{
  text-align:left;
  padding:18px 22px;
  color:var(--brand-lite);
  font-size:14px;
  letter-spacing:0.04em;
  font-weight:700;
  background:rgba(35,197,255,0.06);
  border-bottom:1px solid rgba(142,205,255,0.14);
}
.compare-panel th:first-child{
  font-size:15px;
  color:var(--text-hi);
  background:transparent;
}
.compare-panel td{
  padding:16px 22px;
  border-bottom:1px solid rgba(142,205,255,0.08);
  color:var(--text-mid);
  font-size:15px;
  line-height:1.8;
  vertical-align:top;
}
.compare-panel td:first-child{
  color:var(--text-hi);
  font-weight:600;
}
.compare-panel tr:last-child td{border-bottom:0}
.compare-panel tbody tr{
  transition:background 0.2s ease;
}
.compare-panel tbody tr:hover{background:rgba(35,197,255,0.035)}
.note-small{
  color:var(--text-low);
  font-size:14px;
  margin-top:18px;
  padding-left:2px;
}

.path-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:20px;
}
.path-item{
  position:relative;
  padding:28px 4px 4px;
}
.path-item::before{
  content:"";
  position:absolute;
  top:46px;
  right:calc(100% - 44px);
  left:0;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,197,255,0.35));
}
.path-item:first-child::before{display:none}
.path-count{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:44px;
  height:44px;
  border-radius:12px;
  border:1px solid rgba(35,197,255,0.4);
  background:rgba(35,197,255,0.08);
  color:var(--brand-lite);
  font-weight:900;
  font-size:18px;
  font-family:"DIN Alternate","Bahnschrift",sans-serif;
  box-shadow:0 0 18px rgba(35,197,255,0.08);
  margin-bottom:16px;
}
.path-item h3{font-size:19px;font-weight:800;margin-bottom:8px}
.path-item p{font-size:14px;color:var(--text-mid)}
@media(max-width:900px){
  .path-grid{grid-template-columns:1fr;gap:4px}
  .path-item{padding:18px 4px;border-left:1px solid var(--line-light);padding-left:18px;margin-left:5px}
  .path-item::before{display:none}
}

.faq-section{
  background:
    linear-gradient(180deg,rgba(8,14,24,0.7),rgba(8,14,24,0.4)),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat fixed;
  border-top:1px solid var(--line-light);
  border-bottom:1px solid var(--line-light);
}
.faq-wrap{
  display:grid;
  grid-template-columns:minmax(0,0.8fr) minmax(0,1.2fr);
  gap:52px;
}
.faq-intro h2{font-size:34px;line-height:1.35;font-weight:900;margin-bottom:18px}
.faq-intro p{color:var(--text-mid);font-size:16px;line-height:1.9}
.faq-list{
  display:flex;
  flex-direction:column;
  gap:14px;
}
.faq-item{
  border:1px solid var(--line-light);
  border-radius:var(--r-md);
  background:rgba(10,18,30,0.72);
  -webkit-backdrop-filter:blur(12px);
  backdrop-filter:blur(12px);
  overflow:hidden;
  transition:border-color 0.2s ease,box-shadow 0.2s ease;
}
.faq-item[open]{
  border-color:rgba(245,180,85,0.45);
  box-shadow:0 0 0 1px rgba(245,180,85,0.1),0 0 22px rgba(245,180,85,0.06);
}
.faq-item summary{
  cursor:pointer;
  list-style:none;
  padding:18px 22px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  font-weight:700;
  color:var(--text-hi);
  font-size:16px;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
  content:"+";
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:28px;
  height:28px;
  flex-shrink:0;
  border-radius:50%;
  border:1px solid var(--line-light);
  color:var(--brand-lite);
  font-size:18px;
  font-weight:400;
  transition:transform 0.2s ease,background 0.2s ease,color 0.2s ease,border-color 0.2s ease;
}
.faq-item[open] summary::after{
  content:"−";
  color:var(--amber);
  background:rgba(245,180,85,0.08);
  border-color:rgba(245,180,85,0.3);
}
.faq-answer{
  padding:0 22px 20px 22px;
  color:var(--text-mid);
  border-top:1px dashed rgba(142,205,255,0.1);
  font-size:15px;
}
.faq-answer p{padding-top:14px}

.contact-block{padding:88px 0}
.contact-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:36px;
  flex-wrap:wrap;
  background:
    radial-gradient(600px 260px at 92% 20%,rgba(245,180,85,0.08),transparent 80%),
    linear-gradient(135deg,rgba(9,17,29,0.96),rgba(6,10,18,0.96));
  border:1px solid rgba(142,205,255,0.2);
  border-radius:20px;
  padding:48px;
  box-shadow:inset 0 1px 0 rgba(255,255,255,0.08),0 18px 40px rgba(0,0,0,0.18);
  position:relative;
  overflow:hidden;
}
.contact-card::before{
  content:"";
  position:absolute;
  top:0;
  left:48px;
  right:48px;
  height:1px;
  background:linear-gradient(90deg,transparent,rgba(35,197,255,0.7),transparent);
}
.contact-card h2{font-size:30px;font-weight:900;line-height:1.4}
.contact-card .lead{color:var(--text-mid);max-width:560px;margin-top:12px;font-size:16px}
.contact-actions{
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
}
.contact-actions .btn{
  min-height:48px;
  padding:0 24px;
  font-size:15px;
}
@media(max-width:980px){
  .contact-card{padding:32px;align-items:flex-start}
}
@media(max-width:640px){
  .contact-actions{width:100%}
  .contact-actions .btn{width:100%}
}

.site-footer{
  background:linear-gradient(180deg,#080D16 0%,#05080F 100%);
  border-top:1px solid rgba(142,205,255,0.14);
  margin-top:20px;
  position:relative;
  z-index:1;
}
.site-footer .container{
  padding:52px 24px 30px;
  border-top:none;
}
.footer-top{
  display:grid;
  grid-template-columns:1.15fr 0.8fr 0.8fr 0.8fr;
  gap:38px;
}
.logo{
  display:inline-flex;
  align-items:center;
}
.footer-brand .logo{
  margin-bottom:14px;
}
.footer-desc{
  color:var(--text-low);
  font-size:14px;
  line-height:1.9;
  max-width:280px;
}
.footer-h{
  color:var(--text-hi);
  font-weight:700;
  font-size:16px;
  margin-bottom:18px;
  letter-spacing:0.02em;
}
.footer-list li{margin-bottom:10px}
.footer-list a{
  color:var(--text-mid);
  font-size:14px;
  transition:color 0.2s ease;
}
.footer-list a:hover{color:var(--brand-lite)}
.footer-bottom{
  margin-top:40px;
  padding-top:20px;
  border-top:1px solid rgba(142,205,255,0.08);
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;
  gap:10px;
  color:var(--text-low);
  font-size:13px;
}
.footer-bottom p{letter-spacing:0.02em}

:focus-visible{
  outline:2px solid rgba(35,197,255,0.55);
  outline-offset:2px;
  border-radius:6px;
}
@media(max-width:1200px){
  .hero-title{font-size:42px}
  .logo-word{font-size:18px}
}
@media(max-width:1024px){
  .header-row{flex-wrap:wrap}
  .logo{margin-right:auto}
  .header-cta{margin-left:0}
  .header-nav{order:3;width:100%}
  .nav-tabs{
    width:100%;
    overflow-x:auto;
    scrollbar-width:none;
    justify-content:flex-start;
  }
  .nav-tabs::-webkit-scrollbar{display:none}
  .nav-tab{flex:0 0 auto}
  .block{padding:70px 0}
  .faq-wrap{grid-template-columns:1fr;gap:34px}
  .footer-top{grid-template-columns:1fr 1fr}
}
@media(max-width:820px){
  .hero-title{font-size:36px}
  .hero-lead{font-size:17px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:12px}
  .stat-item{justify-content:flex-start;gap:12px}
  .stat-num{font-size:30px}
  .path-grid{grid-template-columns:1fr}
}
@media(max-width:680px){
  body{font-size:15px}
  .container{width:min(calc(100% - 30px),1200px)}
  .top-note{padding:7px 0}
  .top-note .container{justify-content:center}
  .top-note strong{text-align:center;width:100%}
  .header-row{gap:10px;padding:12px 0}
  .logo-word{font-size:17px}
  .logo-mark{width:38px;height:38px;font-size:13px}
  .header-cta{display:none}
  .hero-title{font-size:30px;line-height:1.35}
  .hero-lead{font-size:16px;margin-top:16px}
  .hero-actions{width:100%}
  .hero-actions .btn{width:100%;margin:0}
  .chip{font-size:12px}
  .block{padding:54px 0}
  .section-head h2,.head-row h2{font-size:26px}
  .head-row p{font-size:15px}
  .contact-block{padding:54px 0}
  .contact-card{padding:26px 18px}
  .contact-card h2{font-size:24px}
  .footer-bottom{flex-direction:column;text-align:center}
  .footer-top{
    grid-template-columns:1fr;
    gap:28px;
  }
  .footer-desc{max-width:100%}
  body{background-attachment:scroll}
  .faq-section{background-attachment:scroll}
}

/* roulang page: category4 */
:root{
  --bg0:#05080f;
  --bg1:#0a1220;
  --bg2:#0e1b2e;
  --panel-glass:rgba(13,24,40,.68);
  --panel-solid:#101c2c;
  --line-light:rgba(142,205,255,.16);
  --line-strong:rgba(112,220,255,.32);
  --brand:#23c5ff;
  --brand-lite:#86e1ff;
  --brand-deep:#0881b8;
  --amber:#f5b455;
  --amber-lite:#ffda99;
  --positive:#3edc9f;
  --danger:#ff6a7a;
  --text-hi:#f0f6ff;
  --text-mid:#a8bacb;
  --text-low:#62778a;
  --radius-s:6px;
  --radius-m:12px;
  --radius-l:18px;
  --container:1200px;
  --shadow-float:0 8px 30px rgba(0,0,0,.26);
  --glow-cyan:0 0 0 1px rgba(35,197,255,.22),0 0 22px rgba(35,197,255,.16);
  --glow-amber:0 0 18px rgba(245,180,85,.18);
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","HarmonyOS Sans",system-ui,-apple-system,sans-serif;
  font-size:15px;
  line-height:1.8;
  color:var(--text-hi);
  background:
    radial-gradient(1100px 480px at 12% -4%,rgba(35,197,255,.08),transparent 60%),
    radial-gradient(900px 520px at 100% 100%,rgba(245,180,85,.05),transparent 55%),
    linear-gradient(180deg,var(--bg0) 0%,#070c15 100%);
  min-height:100vh;
  -webkit-font-smoothing:antialiased;
}
body::selection{background:rgba(35,197,255,.28);color:#fff;}
a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}
h1,h2,h3,h4,p,ul,ol,figure,dl,dd{margin:0;padding:0;}
ul,ol{list-style:none;}
a:focus-visible,button:focus-visible,summary:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{
  outline:2px solid rgba(35,197,255,.5);
  outline-offset:2px;
}
.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:10px 22px;
  border:0;
  border-radius:12px;
  font:inherit;
  font-weight:700;
  cursor:pointer;
  color:#031019;
  background:linear-gradient(180deg,#1cbdf7,#0b90d6);
  box-shadow:0 0 0 1px rgba(35,197,255,.16),0 0 20px rgba(35,197,255,.12);
  transition:transform .18s ease,box-shadow .18s ease,filter .18s ease;
}
.btn:hover{
  filter:brightness(1.08);
  box-shadow:0 0 0 1px rgba(35,197,255,.28),0 0 26px rgba(35,197,255,.2);
  transform:translateY(-1px);
}
.btn:active{
  transform:translateY(1px);
  box-shadow:inset 0 2px 8px rgba(0,0,0,.25),0 0 14px rgba(35,197,255,.12);
}
.btn-ghost{
  background:transparent;
  color:var(--text-hi);
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.18);
}
.btn-ghost:hover{
  box-shadow:inset 0 0 0 1px rgba(112,220,255,.42),0 0 18px rgba(35,197,255,.12);
}
.btn-amber{
  background:linear-gradient(180deg,#fbc979,#ef9f44);
  color:#1b140a;
  box-shadow:var(--glow-amber);
}
.btn-amber:hover{
  filter:brightness(1.07);
  box-shadow:0 0 24px rgba(245,180,85,.26);
}
.topbar{
  background:#0a1220;
  border-bottom:1px solid rgba(142,205,255,.08);
  padding:8px 0;
  font-size:13px;
  color:var(--text-mid);
}
.topbar .container{
  display:flex;
  align-items:center;
  justify-content:flex-start;
  gap:8px;
}
.topbar .pulse-dot{
  width:6px;
  height:6px;
  border-radius:99px;
  background:var(--brand);
  box-shadow:0 0 8px rgba(35,197,255,.8);
  flex:0 0 auto;
}
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(5,8,15,.82);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid rgba(142,205,255,.12);
}
.header-row{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding-top:10px;
  padding-bottom:10px;
}
.logo{
  display:inline-flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  min-width:max-content;
}
.logo-mark{
  width:34px;
  height:34px;
  border-radius:9px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--amber-lite);
  font-weight:900;
  font-size:14px;
  background:linear-gradient(145deg,#101c2c,#0a1220);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.14),0 0 0 1px rgba(112,220,255,.18);
}
.logo-word{
  font-size:18px;
  font-weight:800;
  letter-spacing:.02em;
  white-space:nowrap;
  color:var(--text-hi);
}
.nav-wrap{
  flex:1;
  display:flex;
  justify-content:center;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav-wrap::-webkit-scrollbar{display:none;}
.nav-tabs{
  display:inline-flex;
  align-items:center;
  gap:4px;
  padding:4px;
  background:rgba(10,18,32,.74);
  border:1px solid rgba(255,255,255,.07);
  border-radius:999px;
  max-width:100%;
}
.nav-tab{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  min-height:34px;
  padding:0 15px;
  border-radius:999px;
  color:var(--text-mid);
  font-size:14px;
  font-weight:600;
  white-space:nowrap;
  transition:color .18s,background .18s,box-shadow .18s;
}
.nav-tab:hover{
  color:var(--text-hi);
  background:rgba(255,255,255,.05);
}
.nav-tab.active{
  color:#00131f;
  background:var(--brand-lite);
  box-shadow:0 0 0 1px rgba(35,197,255,.2),0 0 20px rgba(35,197,255,.14);
}
.header-cta{
  flex:0 0 auto;
}
.site-footer{
  border-top:1px solid rgba(142,205,255,.1);
  background:var(--bg1);
  padding-top:52px;
  margin-top:80px;
}
.footer-top{
  display:grid;
  grid-template-columns:1.25fr .8fr .8fr .8fr;
  gap:28px;
}
.footer-brand .logo{
  margin-bottom:12px;
}
.footer-desc{
  color:var(--text-mid);
  max-width:300px;
  line-height:1.8;
  margin-bottom:14px;
}
.footer-h{
  font-size:15px;
  font-weight:700;
  color:var(--text-hi);
  margin-bottom:12px;
}
.footer-list li+li{
  margin-top:8px;
}
.footer-list a{
  color:var(--text-mid);
  transition:color .18s;
}
.footer-list a:hover{
  color:var(--brand-lite);
}
.footer-bottom{
  border-top:1px solid rgba(142,205,255,.08);
  margin-top:34px;
  padding:20px 0 24px;
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  justify-content:space-between;
  color:var(--text-low);
  font-size:13px;
}
.footer-bottom p{margin:0;}
@media (max-width:960px){
  .footer-top{
    grid-template-columns:1fr 1fr;
  }
}
@media (max-width:640px){
  .footer-top{
    grid-template-columns:1fr;
  }
}

.cat-hero{
  position:relative;
  min-height:500px;
  display:flex;
  align-items:center;
  padding:84px 0 60px;
  overflow:hidden;
  border-bottom:1px solid rgba(142,205,255,.12);
}
.cat-hero-bg{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  opacity:.22;
}
.cat-hero-overlay{
  position:absolute;
  inset:0;
  background:linear-gradient(100deg,rgba(5,8,15,.96) 8%,rgba(6,12,22,.86) 46%,rgba(5,10,18,.7) 100%);
}
.cat-hero-grid{
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(rgba(142,205,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(142,205,255,.045) 1px,transparent 1px);
  background-size:44px 44px;
  -webkit-mask-image:linear-gradient(90deg,transparent,#000 40%,#000 70%,transparent);
  mask-image:linear-gradient(90deg,transparent,#000 40%,#000 70%,transparent);
  pointer-events:none;
}
.cat-hero-content{
  position:relative;
  z-index:2;
  width:100%;
}
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  color:var(--text-low);
  font-size:13px;
  margin-bottom:22px;
}
.breadcrumb a{color:var(--text-mid);transition:color .18s;}
.breadcrumb a:hover{color:var(--brand-lite);}
.breadcrumb .sep{opacity:.55;}
.cat-hero h1{
  max-width:900px;
  font-size:clamp(30px,4vw,42px);
  line-height:1.28;
  font-weight:800;
  letter-spacing:.01em;
  margin-bottom:18px;
}
.cat-hero h1 .brand-text{
  color:var(--brand-lite);
  text-shadow:0 0 24px rgba(35,197,255,.28);
}
.hero-desc{
  max-width:740px;
  color:var(--text-mid);
  font-size:17px;
  line-height:1.8;
  margin-bottom:30px;
}
.quick-chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.quick-chips a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  min-height:40px;
  padding:0 16px;
  border-radius:99px;
  border:1px solid var(--line-light);
  background:rgba(16,28,44,.5);
  color:var(--text-mid);
  font-size:14px;
  transition:color .18s,border-color .18s,box-shadow .18s,transform .18s;
}
.quick-chips a:hover{
  color:var(--text-hi);
  border-color:var(--line-strong);
  box-shadow:0 0 18px rgba(35,197,255,.1);
  transform:translateY(-1px);
}

.section-block{
  padding:88px 0;
}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:20px 40px;
  margin-bottom:30px;
}
.section-eyebrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  color:var(--brand);
  font-weight:700;
  font-size:13px;
  letter-spacing:.12em;
  margin-bottom:8px;
}
.section-eyebrow::before{
  content:"";
  width:22px;
  height:2px;
  background:var(--brand);
  border-radius:2px;
}
.section-head h2{
  font-size:clamp(24px,3vw,32px);
  line-height:1.3;
  letter-spacing:.01em;
}
.section-head .head-note{
  max-width:420px;
  color:var(--text-low);
  font-size:15px;
}

.magazine-grid{
  display:grid;
  grid-template-columns:minmax(0,1.06fr) minmax(0,.94fr);
  gap:26px;
  align-items:start;
}
.feature-card{
  position:relative;
  overflow:hidden;
  border-radius:20px;
  border:1px solid var(--line-light);
  background:var(--panel-solid);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.1),0 24px 50px rgba(0,0,0,.2);
  min-height:100%;
}
.feature-media{
  position:relative;
  height:290px;
  overflow:hidden;
  border-bottom:1px solid rgba(142,205,255,.12);
}
.feature-media img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .4s ease;
}
.feature-card:hover .feature-media img{
  transform:scale(1.03);
}
.feature-media::after{
  content:"";
  position:absolute;
  inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(16,28,44,.86) 100%);
}
.feature-badge{
  position:absolute;
  left:24px;
  top:20px;
  z-index:2;
  padding:5px 14px;
  border-radius:99px;
  background:rgba(245,180,85,.16);
  border:1px solid rgba(245,180,85,.32);
  color:var(--amber-lite);
  font-size:13px;
  font-weight:700;
}
.feature-body{
  padding:28px 28px 30px;
}
.feature-body h2{
  font-size:26px;
  line-height:1.35;
  margin-bottom:12px;
}
.feature-body .feature-text{
  color:var(--text-mid);
  line-height:1.85;
  margin-bottom:24px;
}
.feature-stats{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:12px;
  margin-bottom:26px;
}
.feature-stat{
  padding:14px 16px;
  border-radius:14px;
  background:rgba(5,8,15,.45);
  border:1px solid rgba(142,205,255,.12);
}
.feature-stat strong{
  display:block;
  color:var(--brand-lite);
  font-size:13px;
  font-weight:800;
  line-height:1.4;
  margin-bottom:4px;
}
.feature-stat span{
  color:var(--text-low);
  font-size:13px;
  line-height:1.55;
}

.sub-wrap{
  display:flex;
  flex-direction:column;
  gap:16px;
}
.side-head{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:0 2px 4px;
}
.side-head h2{
  font-size:23px;
  line-height:1.3;
}
.side-head a{
  font-size:13px;
  color:var(--brand-lite);
  transition:opacity .18s;
}
.side-head a:hover{opacity:.8;}
.sub-card{
  display:grid;
  grid-template-columns:128px minmax(0,1fr);
  gap:16px;
  align-items:stretch;
  background:rgba(10,18,32,.68);
  border:1px solid rgba(142,205,255,.14);
  border-radius:16px;
  overflow:hidden;
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.sub-card:hover{
  transform:translateY(-2px);
  border-color:var(--line-strong);
  box-shadow:0 14px 34px rgba(0,0,0,.2);
}
.sub-media{
  position:relative;
  min-height:132px;
  overflow:hidden;
}
.sub-media img{
  position:absolute;
  inset:0;
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .3s ease;
}
.sub-card:hover .sub-media img{
  transform:scale(1.05);
}
.sub-body{
  display:flex;
  flex-direction:column;
  padding:16px 16px 14px 0;
}
.sub-tags{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  margin-bottom:8px;
}
.sub-tag{
  color:var(--brand-lite);
  background:rgba(35,197,255,.1);
  border:1px solid rgba(35,197,255,.16);
  padding:2px 10px;
  border-radius:999px;
  font-weight:700;
}
.sub-window{
  color:var(--amber-lite);
  background:rgba(245,180,85,.1);
  border:1px solid rgba(245,180,85,.2);
  padding:2px 10px;
  border-radius:999px;
}
.sub-body h3{
  font-size:17px;
  line-height:1.45;
  margin-bottom:8px;
}
.sub-body p{
  color:var(--text-mid);
  font-size:14px;
  line-height:1.75;
  flex:1;
  margin-bottom:12px;
}
.sub-link{
  color:var(--brand-lite);
  font-size:14px;
  font-weight:700;
  align-self:flex-start;
}
.sub-link svg{
  vertical-align:-2px;
  transition:transform .18s;
}
.sub-link:hover svg{
  transform:translateX(3px);
}

.flow-section{
  border-top:1px solid rgba(142,205,255,.08);
}
.flow-steps{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:16px;
}
.flow-step{
  position:relative;
  border-radius:16px;
  padding:26px 22px;
  background:linear-gradient(160deg,rgba(16,28,44,.75),rgba(10,18,32,.6));
  border:1px solid rgba(142,205,255,.12);
  overflow:hidden;
}
.flow-step::before{
  content:"";
  position:absolute;
  left:0;
  top:22px;
  bottom:22px;
  width:2px;
  background:linear-gradient(180deg,var(--brand),transparent);
  opacity:.55;
}
.flow-step .step-num{
  display:block;
  font-family:"Bahnschrift","DIN Alternate","Segoe UI",sans-serif;
  font-size:30px;
  font-weight:700;
  color:var(--amber);
  line-height:1;
  margin-bottom:16px;
  letter-spacing:.02em;
}
.flow-step h3{
  font-size:17px;
  margin-bottom:8px;
}
.flow-step p{
  color:var(--text-mid);
  font-size:14px;
  line-height:1.7;
}

.tip-strip{
  margin-top:28px;
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  padding:18px 20px;
  border-radius:14px;
  border:1px solid rgba(245,180,85,.18);
  background:rgba(245,180,85,.07);
}
.tip-item{
  display:inline-flex;
  align-items:center;
  gap:7px;
  color:var(--text-mid);
  font-size:14px;
}
.tip-item svg{color:var(--amber);}

.faq-wrap{
  display:grid;
  grid-template-columns:minmax(0,.88fr) minmax(0,1.12fr);
  gap:48px;
  align-items:start;
}
.faq-aside .faq-lead{
  color:var(--text-mid);
  margin-top:14px;
  max-width:320px;
}
.faq-list{
  display:flex;
  flex-direction:column;
  gap:12px;
}
.faq-item{
  border:1px solid rgba(142,205,255,.14);
  border-radius:14px;
  background:rgba(10,18,32,.4);
  overflow:hidden;
  transition:border-color .18s ease,background .18s ease;
}
.faq-item:hover{
  border-color:rgba(112,220,255,.24);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap:14px;
  padding:16px 20px;
  font-size:15px;
  font-weight:700;
  line-height:1.5;
  position:relative;
}
.faq-item summary::-webkit-details-marker{
  display:none;
}
.faq-item summary .q-icon{
  width:24px;
  height:24px;
  flex:0 0 auto;
  border-radius:8px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:13px;
  font-weight:800;
  background:rgba(35,197,255,.12);
  color:var(--brand);
}
.faq-item summary::after{
  content:"";
  width:8px;
  height:8px;
  border-right:2px solid var(--text-low);
  border-bottom:2px solid var(--text-low);
  transform:rotate(45deg);
  margin-left:auto;
  transition:transform .22s ease;
}
.faq-item[open] summary::after{
  transform:rotate(-135deg);
  border-color:var(--brand-lite);
}
.faq-item .faq-answer{
  padding:0 22px 20px 58px;
  color:var(--text-mid);
  font-size:14.5px;
  line-height:1.85;
}
.faq-item[open]{
  background:rgba(12,24,42,.6);
  border-color:rgba(112,220,255,.24);
}

.entry-band{
  background:rgba(10,18,32,.55);
  border-top:1px solid rgba(142,205,255,.1);
  border-bottom:1px solid rgba(142,205,255,.1);
}
.entry-title-row{
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:24px;
  margin-bottom:22px;
}
.entry-title-row h2{
  font-size:26px;
  line-height:1.3;
}
.entry-title-row p{
  color:var(--text-mid);
}
.entry-chips{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
}
.entry-chip{
  display:inline-flex;
  align-items:center;
  gap:8px;
  border-radius:99px;
  padding:10px 18px;
  border:1px solid var(--line-light);
  background:rgba(16,28,44,.55);
  color:var(--text-hi);
  font-size:14px;
  font-weight:600;
  transition:all .18s;
}
.entry-chip:hover{
  border-color:var(--line-strong);
  color:var(--brand-lite);
  transform:translateY(-1px);
  box-shadow:0 0 18px rgba(35,197,255,.08);
}
.entry-chip svg{
  color:var(--brand);
}

.cta-band{
  padding:80px 0;
}
.cta-card{
  border-radius:22px;
  overflow:hidden;
  background:linear-gradient(130deg,#0e1b2e,#0a1220 70%);
  border:1px solid rgba(112,220,255,.2);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:30px;
  padding:40px 44px;
  position:relative;
}
.cta-card::before{
  content:"";
  position:absolute;
  width:260px;
  height:260px;
  right:-70px;
  top:-100px;
  background:radial-gradient(circle,rgba(35,197,255,.16),transparent 65%);
}
.cta-card h2{
  font-size:28px;
  line-height:1.35;
  margin-bottom:10px;
}
.cta-card p{
  color:var(--text-mid);
  max-width:560px;
  line-height:1.8;
}
.cta-card .cta-actions{
  display:flex;
  width:100%;
}

@media (max-width:1024px){
  .section-block{
    padding:76px 0;
  }
  .faq-wrap{
    grid-template-columns:1fr;
    gap:30px;
  }
  .flow-steps{
    grid-template-columns:repeat(2,minmax(0,1fr));
  }
  .magazine-grid{
    grid-template-columns:1fr;
  }
}
@media (max-width:768px){
  body{
    font-size:14px;
  }
  .container{
    padding-left:18px;
    padding-right:18px;
  }
  .header-row{
    align-items:center;
    flex-wrap:nowrap;
  }
  .nav-tab{
    padding:0 12px;
    font-size:13px;
  }
  .header-cta .btn{
    padding:0 13px;
    font-size:13px;
  }
  .cat-hero{
    min-height:440px;
    padding:64px 0 44px;
  }
  .section-block{
    padding:54px 0;
  }
  .section-head{
    flex-direction:column;
    align-items:flex-start;
  }
  .feature-media{
    height:210px;
  }
  .feature-body{
    padding:22px 20px 24px;
  }
  .feature-stats{
    grid-template-columns:1fr;
  }
  .sub-card{
    grid-template-columns:100px minmax(0,1fr);
  }
  .sub-media{
    min-height:120px;
  }
  .flow-steps{
    grid-template-columns:1fr;
  }
  .cta-card{
    flex-direction:column;
    align-items:flex-start;
    padding:30px 24px;
  }
  .footer-bottom{
    flex-direction:column;
  }
}
@media (max-width:520px){
  .header-cta{
    display:none;
  }
  .magazine-grid{
    grid-template-columns:1fr;
  }
  .sub-card{
    grid-template-columns:1fr;
  }
  .sub-media{
    min-height:170px;
    position:static;
  }
  .sub-media img{
    position:static;
    height:170px;
  }
  .sub-body{
    padding:0 18px 18px;
  }
}