/* roulang page: index */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1020;
  --bg-2:#0F172B;
  --neo:#3AE0FF;
  --neo-deep:#4F7CFF;
  --rose:#FF4D5E;
  --amber:#FFB347;
  --t-hi:#EAF2FF;
  --t-mid:#9FB0CC;
  --t-low:#66799A;
  --line:rgba(255,255,255,.08);
  --card-bg:rgba(255,255,255,.045);
  --card-line:rgba(58,224,255,.16);
  --radius:14px;
  --radius-sm:10px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(58,224,255,.4),0 0 26px rgba(58,224,255,.25);
  --grad:linear-gradient(120deg,#3AE0FF,#4F7CFF);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-mid);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
button{cursor:pointer;background:none;border:0;}
h1,h2,h3,h4,p,ul,ol{margin:0;}
ul,ol{padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--neo);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(58,224,255,.3);color:#fff;}
.num{font-family:"Space Grotesk",Inter,system-ui,sans-serif;font-variant-numeric:tabular-nums;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px;}
@media (min-width:768px){.container{padding:0 32px;}}

/* ---------- 公告条 ---------- */
.announce{
  background:var(--bg-2);
  border-bottom:1px solid var(--line);
  font-size:13px;
  color:var(--t-mid);
}
.announce-inner{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  min-height:36px;padding-top:6px;padding-bottom:6px;
}
.announce-left{display:flex;align-items:center;gap:9px;min-width:0;}
.pulse-dot{
  width:7px;height:7px;border-radius:50%;background:var(--neo);flex:none;
  box-shadow:0 0 0 0 rgba(58,224,255,.6);
  animation:pulse 2.4s infinite;
}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(58,224,255,.55);}
  70%{box-shadow:0 0 0 9px rgba(58,224,255,0);}
  100%{box-shadow:0 0 0 0 rgba(58,224,255,0);}
}
.announce-left span{overflow:hidden;text-overflow:ellipsis;white-space:nowrap;}
.announce-right{display:none;align-items:center;gap:6px;color:var(--neo);font-size:12px;letter-spacing:.5px;}
@media (min-width:768px){.announce-right{display:inline-flex;}}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,8,15,.86);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(58,224,255,.75),rgba(79,124,255,.55),transparent);
}
.nav{display:flex;align-items:center;justify-content:space-between;gap:16px;height:64px;}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;color:var(--t-hi);letter-spacing:.4px;}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex:none;
  background:var(--grad);
  display:grid;place-items:center;color:#05080F;font-size:15px;font-weight:800;
  box-shadow:0 0 18px rgba(58,224,255,.4);
}
.brand-sub{
  font-size:11px;font-weight:600;letter-spacing:1px;color:var(--neo);
  border:1px solid rgba(58,224,255,.35);border-radius:999px;padding:1px 8px;
  background:rgba(58,224,255,.08);
}
.nav-links{display:none;align-items:center;gap:30px;}
@media (min-width:992px){.nav-links{display:flex;}}
.nav-link{
  position:relative;display:inline-flex;align-items:center;height:64px;
  font-size:15px;color:var(--t-mid);transition:color .18s ease;
}
.nav-link::after{
  content:"";position:absolute;left:0;right:0;bottom:13px;height:2px;border-radius:2px;
  background:var(--grad);opacity:0;transform:scaleX(.35);transform-origin:center;
  transition:opacity .18s ease,transform .18s ease;
}
.nav-link:hover{color:var(--t-hi);}
.nav-link:hover::after{opacity:.5;transform:scaleX(1);}
.nav-link.active{color:#fff;text-shadow:0 0 14px rgba(58,224,255,.6);}
.nav-link.active::after{opacity:1;transform:scaleX(1);}
.nav-right{display:none;align-items:center;gap:14px;}
@media (min-width:992px){.nav-right{display:flex;}}

.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--radius-sm);font-weight:600;line-height:1;white-space:nowrap;
  border:1px solid transparent;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,color .18s ease,border-color .18s ease;
  min-height:44px;
}
.btn-sm{min-height:38px;padding:0 16px;font-size:14px;}
.btn-md{padding:0 22px;font-size:15px;}
.btn-lg{padding:0 28px;min-height:50px;font-size:16px;}
.btn-primary{
  background:var(--grad);color:#04121c;
  box-shadow:0 8px 24px rgba(58,224,255,.28);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 10px 34px rgba(58,224,255,.45),0 0 0 1px rgba(58,224,255,.5);transform:translateY(-1px);}
.btn-primary:active{transform:translateY(1px);}
.btn-ghost{
  background:var(--card-bg);color:var(--t-hi);border-color:rgba(58,224,255,.32);
}
.btn-ghost:hover{background:rgba(58,224,255,.1);border-color:rgba(58,224,255,.6);box-shadow:0 0 18px rgba(58,224,255,.18);}
.btn-rose{
  background:rgba(255,77,94,.14);color:#FFD9DD;border-color:rgba(255,77,94,.45);
}
.btn-rose:hover{background:rgba(255,77,94,.22);border-color:rgba(255,77,94,.7);}
.link-more{
  display:inline-flex;align-items:center;gap:6px;font-size:14px;color:var(--neo);
  padding:8px 0;position:relative;transition:color .18s ease;
}
.link-more::after{
  content:"";position:absolute;left:0;right:0;bottom:2px;height:1px;background:currentColor;
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease;
}
.link-more:hover::after{transform:scaleX(1);}

.hamburger{
  display:inline-flex;flex-direction:column;justify-content:center;gap:5px;
  width:44px;height:44px;border-radius:10px;border:1px solid var(--line);
  background:var(--card-bg);padding:0 11px;
}
.hamburger span{display:block;height:2px;border-radius:2px;background:var(--t-hi);transition:.2s ease;}
@media (min-width:992px){.hamburger{display:none;}}
.mobile-panel{
  display:none;position:fixed;left:0;right:0;top:100px;z-index:79;
  background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:8px 20px 20px;box-shadow:0 24px 44px rgba(0,0,0,.55);
}
.mobile-panel.open{display:block;}
.mobile-panel a.m-link{
  display:flex;align-items:center;justify-content:space-between;
  padding:14px 4px;font-size:16px;color:var(--t-hi);border-bottom:1px solid var(--line);
}
.mobile-panel a.m-link.active{color:var(--neo);}
.mobile-panel .btn{width:100%;margin-top:16px;}

/* ---------- 通用板块 ---------- */
.section{padding:52px 0;}
@media (min-width:768px){.section{padding:78px 0;}}
.section-alt{background:var(--bg-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:18px;
  margin-bottom:30px;flex-wrap:wrap;
}
.section-head h2{
  font-size:clamp(22px,2.6vw,34px);font-weight:700;color:var(--t-hi);line-height:1.3;letter-spacing:-.3px;
}
.section-head p{margin-top:8px;font-size:14px;color:var(--t-mid);max-width:620px;line-height:1.75;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:1.4px;color:var(--neo);text-transform:uppercase;font-weight:600;
}
.eyebrow::before{content:"";width:18px;height:1px;background:var(--neo);opacity:.8;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:3px 10px;border-radius:999px;font-size:12px;font-weight:600;line-height:1.7;
  background:rgba(255,255,255,.05);border:1px solid var(--line);color:var(--t-mid);
}
.badge--cyber{color:var(--neo);border-color:rgba(58,224,255,.35);background:rgba(58,224,255,.09);}
.badge--rose{color:#FFC9CF;border-color:rgba(255,77,94,.45);background:rgba(255,77,94,.12);}
.badge--rose::before{content:"";width:5px;height:5px;border-radius:50%;background:var(--rose);box-shadow:0 0 8px var(--rose);}
.badge--amber{color:#FFE0B4;border-color:rgba(255,179,71,.4);background:rgba(255,179,71,.1);}

.card{
  position:relative;background:var(--card-bg);border:1px solid var(--card-line);
  border-radius:var(--radius);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(58,224,255,.7),transparent);opacity:.7;
}
.card:hover{transform:translateY(-3px);border-color:rgba(58,224,255,.45);box-shadow:var(--glow),var(--shadow);}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;padding:44px 0 56px;background:var(--bg-0);}
.hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.035) 0 1px,transparent 1px 48px),
                   repeating-linear-gradient(90deg,rgba(255,255,255,.035) 0 1px,transparent 1px 48px);
  mask-image:radial-gradient(circle at 60% 30%,#000 20%,transparent 78%);
  -webkit-mask-image:radial-gradient(circle at 60% 30%,#000 20%,transparent 78%);
}
.hero::after{
  content:"";position:absolute;width:640px;height:640px;right:-200px;top:-260px;pointer-events:none;
  background:radial-gradient(circle,rgba(58,224,255,.16),transparent 62%);
  filter:blur(10px);
}
.hero-grid{position:relative;display:grid;grid-template-columns:1fr;gap:36px;align-items:center;}
@media (min-width:992px){.hero-grid{grid-template-columns:7fr 5fr;gap:44px;}}
.hero h1{
  font-size:clamp(28px,4.4vw,52px);font-weight:800;line-height:1.16;letter-spacing:-.5px;
  color:var(--t-hi);margin:16px 0 0;
}
.hero h1 .hl{
  display:inline-block;
  background:linear-gradient(120deg,#6FEBFF,#8FB2FF);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{margin-top:18px;font-size:15px;line-height:1.85;color:var(--t-mid);max-width:560px;}
@media (min-width:768px){.hero-sub{font-size:16px;}}
.hero-cta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.hero-trust{
  display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:26px;
  padding-top:20px;border-top:1px dashed var(--line);
}
.hero-trust li{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--t-mid);}
.hero-trust li svg{width:15px;height:15px;flex:none;color:var(--neo);}
.hero-visual{position:relative;border-radius:var(--radius);overflow:hidden;border:1px solid rgba(58,224,255,.22);box-shadow:var(--shadow);}
.hero-visual img{width:100%;height:240px;object-fit:cover;}
@media (min-width:768px){.hero-visual img{height:330px;}}
@media (min-width:992px){.hero-visual img{height:400px;}}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.15),rgba(5,8,15,.55) 58%,rgba(5,8,15,.92));
}
.hero-visual .vis-badge{
  position:absolute;left:16px;top:16px;z-index:2;
  display:inline-flex;align-items:center;gap:6px;padding:5px 11px;border-radius:999px;
  font-size:12px;color:#D5F7FF;background:rgba(5,8,15,.65);border:1px solid rgba(58,224,255,.4);
  backdrop-filter:blur(8px);
}
.hero-stats{
  position:absolute;right:14px;bottom:14px;left:14px;z-index:2;
  display:grid;grid-template-columns:repeat(3,1fr);gap:8px;
  background:rgba(10,16,32,.78);border:1px solid rgba(58,224,255,.25);border-radius:12px;
  padding:12px 10px;backdrop-filter:blur(12px);
}
.hero-stats div{text-align:center;}
.hero-stats strong{display:block;font-size:19px;font-weight:700;color:var(--neo);line-height:1.3;}
.hero-stats span{display:block;font-size:11px;color:var(--t-low);letter-spacing:.4px;}

/* ---------- 阶梯板块 ---------- */
.steps{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:768px){.steps{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.steps{grid-template-columns:repeat(4,1fr);align-items:start;gap:14px;}}
.step{position:relative;padding:20px;display:flex;flex-direction:column;gap:10px;}
@media (min-width:1024px){
  .step:nth-child(2){margin-top:18px;}
  .step:nth-child(3){margin-top:36px;}
  .step:nth-child(4){margin-top:54px;}
}
.step-idx{
  width:30px;height:30px;border-radius:9px;display:grid;place-items:center;
  font-size:13px;font-weight:700;color:#04121c;background:var(--grad);
  box-shadow:0 0 14px rgba(58,224,255,.35);
}
.step h3{font-size:17px;font-weight:600;color:var(--t-hi);line-height:1.45;}
.step p{font-size:13px;line-height:1.75;color:var(--t-mid);}
.progress{height:4px;border-radius:99px;background:rgba(255,255,255,.08);overflow:hidden;margin-top:auto;}
.progress i{display:block;height:100%;border-radius:99px;background:var(--grad);}
.step:nth-child(1) .progress i{width:38%;}
.step:nth-child(2) .progress i{width:58%;}
.step:nth-child(3) .progress i{width:78%;}
.step:nth-child(4) .progress i{width:96%;}
.step-link{font-size:13px;color:var(--neo);display:inline-flex;align-items:center;gap:5px;}

/* ---------- 对比表 ---------- */
.compare-wrap{overflow-x:auto;border-radius:var(--radius);border:1px solid var(--card-line);background:var(--card-bg);}
.compare{width:100%;min-width:620px;border-collapse:collapse;font-size:14px;}
.compare th,.compare td{padding:14px 16px;text-align:left;border-bottom:1px solid var(--line);}
.compare thead th{
  position:sticky;top:0;background:rgba(15,23,43,.96);color:var(--t-hi);
  font-weight:600;font-size:14px;letter-spacing:.3px;z-index:2;
}
.compare tbody th{color:var(--t-mid);font-weight:500;background:rgba(255,255,255,.02);}
.compare td{color:var(--t-hi);}
.compare tbody tr:last-child th,.compare tbody tr:last-child td{border-bottom:0;}
.compare col.reco{background:rgba(58,224,255,.07);}
.compare .reco-head{color:var(--neo);}
.cell-yes{color:var(--neo);font-weight:600;}
.cell-part{color:var(--amber);font-weight:600;}
.cell-no{color:var(--t-low);}
.reco-badge{
  display:inline-block;margin-left:6px;font-size:11px;padding:1px 7px;border-radius:999px;
  color:#04121c;background:var(--grad);font-weight:700;vertical-align:middle;
}
.compare-cards{display:none;}
@media (max-width:767px){
  .compare-wrap{display:none;}
  .compare-cards{display:flex;gap:12px;overflow-x:auto;scroll-snap-type:x mandatory;padding-bottom:6px;}
  .compare-cards .card{min-width:78%;scroll-snap-align:start;padding:18px;}
}

/* ---------- 提醒/倒计时区块 ---------- */
.remind{
  position:relative;overflow:hidden;border-radius:18px;border:1px solid rgba(58,224,255,.22);
  background:linear-gradient(140deg,rgba(15,23,43,.96),rgba(10,16,32,.96));
  padding:28px 22px;
}
@media (min-width:768px){.remind{padding:38px 40px;}}
.remind::before,.remind::after{content:"";position:absolute;width:340px;height:340px;border-radius:50%;pointer-events:none;}
.remind::before{left:-140px;top:-150px;background:radial-gradient(circle,rgba(58,224,255,.2),transparent 65%);}
.remind::after{right:-140px;bottom:-160px;background:radial-gradient(circle,rgba(255,77,94,.16),transparent 65%);}
.remind-inner{position:relative;display:grid;grid-template-columns:1fr;gap:26px;align-items:center;}
@media (min-width:992px){.remind-inner{grid-template-columns:1.15fr .85fr;gap:36px;}}
.remind h2{font-size:clamp(21px,2.5vw,30px);font-weight:700;color:var(--t-hi);margin-top:12px;line-height:1.35;}
.remind p{margin-top:10px;font-size:14px;color:var(--t-mid);line-height:1.8;max-width:520px;}
.countdown{display:flex;gap:10px;justify-content:flex-start;}
@media (min-width:992px){.countdown{justify-content:flex-end;}}
.count-box{
  min-width:70px;padding:12px 8px;text-align:center;border-radius:12px;
  background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);
  backdrop-filter:blur(10px);
}
.count-box strong{display:block;font-size:26px;font-weight:700;color:var(--rose);line-height:1.2;letter-spacing:1px;}
.count-box span{display:block;font-size:11px;color:var(--t-low);letter-spacing:1px;margin-top:4px;}

/* ---------- CMS 列表 ---------- */
.cms-grid{display:grid;grid-template-columns:1fr;gap:16px;}
@media (min-width:640px){.cms-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:1024px){.cms-grid{grid-template-columns:repeat(3,1fr);}}
.cms-card{display:flex;flex-direction:column;padding:0;}
.cms-thumb{display:block;overflow:hidden;background:var(--bg-2);position:relative;}
.cms-thumb img{width:100%;height:180px;object-fit:cover;transition:transform .3s ease;}
.cms-card:hover .cms-thumb img{transform:scale(1.04);}
.cms-body{padding:18px 20px 16px;display:flex;flex-direction:column;gap:10px;flex:1;}
.cms-body h3{font-size:18px;font-weight:600;color:var(--t-hi);line-height:1.45;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.cms-body h3 a:hover{color:var(--neo);}
.cms-excerpt{font-size:13.5px;line-height:1.75;color:var(--t-mid);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.cms-meta{display:flex;align-items:center;justify-content:space-between;margin-top:auto;padding-top:12px;border-top:1px solid var(--line);font-size:12px;color:var(--t-low);}
.cms-arrow{
  width:28px;height:28px;border-radius:50%;display:grid;place-items:center;
  border:1px solid rgba(58,224,255,.3);color:var(--neo);font-size:13px;transition:.18s ease;
}
.cms-card:hover .cms-arrow{background:rgba(58,224,255,.14);box-shadow:0 0 14px rgba(58,224,255,.3);}
@media (min-width:1024px){
  .cms-card--wide{grid-column:span 2;flex-direction:row;}
  .cms-card--wide .cms-thumb{width:52%;flex:none;}
  .cms-card--wide .cms-thumb img{height:100%;min-height:240px;}
  .cms-card--wide .cms-body{padding:24px;}
  .cms-card--wide .cms-body h3{font-size:21px;-webkit-line-clamp:3;}
  .cms-card--wide .cms-excerpt{-webkit-line-clamp:3;font-size:14px;}
}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:10px;
  padding:44px 20px;border-radius:var(--radius);border:1px dashed rgba(58,224,255,.25);
  background:rgba(255,255,255,.02);text-align:center;
}
.empty-state svg{width:36px;height:36px;color:var(--t-low);}
.empty-state p{font-size:14px;color:var(--t-mid);}
.empty-state a{font-size:13px;color:var(--neo);}

/* ---------- FAQ ---------- */
.faq-layout{display:grid;grid-template-columns:1fr;gap:22px;}
@media (min-width:992px){.faq-layout{grid-template-columns:1fr 300px;gap:32px;}}
.faq-item{border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.035);margin-bottom:10px;overflow:hidden;transition:border-color .18s ease,background .18s ease;}
.faq-item.open{border-color:rgba(58,224,255,.4);background:rgba(58,224,255,.05);}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:14px;
  padding:16px 18px;text-align:left;font-size:16px;font-weight:600;color:var(--t-hi);line-height:1.5;
}
.faq-icon{position:relative;width:18px;height:18px;flex:none;color:var(--neo);}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
  transform:translate(-50%,-50%);transition:transform .2s ease,opacity .2s ease;
}
.faq-icon::before{width:14px;height:2px;}
.faq-icon::after{width:2px;height:14px;}
.faq-item.open .faq-icon::after{transform:translate(-50%,-50%) rotate(90deg);opacity:0;}
.faq-a{display:none;padding:0 18px 18px;font-size:15px;line-height:1.85;color:var(--t-mid);}
.faq-item.open .faq-a{display:block;}
.faq-aside{padding:22px;align-self:start;}
.faq-aside h3{font-size:16px;font-weight:600;color:var(--t-hi);margin-bottom:8px;}
.faq-aside p{font-size:13.5px;line-height:1.8;color:var(--t-mid);margin-bottom:14px;}

/* ---------- 表单 ---------- */
.contact-card{padding:26px 20px;}
@media (min-width:768px){.contact-card{padding:34px;}}
.contact-grid{display:grid;grid-template-columns:1fr;gap:28px;}
@media (min-width:992px){.contact-grid{grid-template-columns:5fr 7fr;gap:40px;}}
.contact-info h2{font-size:clamp(21px,2.4vw,30px);font-weight:700;color:var(--t-hi);line-height:1.35;margin-top:12px;}
.contact-info ul{margin-top:18px;display:flex;flex-direction:column;gap:12px;}
.contact-info li{display:flex;gap:10px;font-size:14px;color:var(--t-mid);line-height:1.75;}
.contact-info li svg{width:17px;height:17px;flex:none;color:var(--neo);margin-top:4px;}
.form-row{display:grid;grid-template-columns:1fr;gap:14px;}
@media (min-width:640px){.form-row.two{grid-template-columns:1fr 1fr;}}
.field{display:flex;flex-direction:column;gap:6px;}
.field label{font-size:13px;color:var(--t-mid);}
.field label .req{color:var(--rose);margin-left:2px;}
.field input,.field select,.field textarea{
  width:100%;background:var(--bg-2);border:1px solid rgba(255,255,255,.1);border-radius:10px;
  padding:11px 13px;font-size:14.5px;color:var(--t-hi);transition:border-color .18s ease,box-shadow .18s ease;
  min-height:44px;
}
.field textarea{min-height:110px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--t-low);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--neo);box-shadow:0 0 0 3px rgba(58,224,255,.16);
}
.form-note{font-size:12px;color:var(--t-low);margin-top:10px;line-height:1.7;}
.form-msg{display:none;margin-top:12px;padding:10px 14px;border-radius:10px;font-size:13.5px;}
.form-msg.ok{display:block;border:1px solid rgba(58,224,255,.45);background:rgba(58,224,255,.08);color:#B9F1FF;}
.form-msg.err{display:block;border:1px solid rgba(255,77,94,.45);background:rgba(255,77,94,.08);color:#FFC9CF;}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:var(--bg-0);border-top:1px solid var(--line);padding-top:44px;}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(58,224,255,.7),rgba(79,124,255,.5),transparent);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:28px;padding-bottom:34px;}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr;}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:34px;}}
.footer-brand .brand{margin-bottom:12px;}
.footer-brand p{font-size:13.5px;line-height:1.8;color:var(--t-mid);max-width:320px;}
.footer-col h4{font-size:13px;letter-spacing:1px;color:var(--t-hi);font-weight:600;margin-bottom:12px;}
.footer-col ul{display:flex;flex-direction:column;gap:9px;}
.footer-col a{font-size:13.5px;color:var(--t-mid);transition:color .18s ease;}
.footer-col a:hover{color:var(--neo);}
.footer-col p{font-size:13.5px;color:var(--t-mid);line-height:1.8;}
.footer-bottom{
  border-top:1px solid var(--line);padding:16px 0 22px;
  display:flex;flex-wrap:wrap;gap:8px 18px;align-items:center;justify-content:space-between;
  font-size:12.5px;color:var(--t-low);
}
.footer-bottom .dot{opacity:.5;}

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

/* roulang page: category1 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1020;
  --bg-2:#0F172B;
  --neo:#3AE0FF;
  --neo-deep:#4F7CFF;
  --rose:#FF4D5E;
  --amber:#FFB347;
  --t-hi:#EAF2FF;
  --t-mid:#9FB0CC;
  --t-low:#66799A;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --r-card:14px;
  --r-img:12px;
  --r-btn:10px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(58,224,255,.4),0 0 26px rgba(58,224,255,.25);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--t-hi);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--neo);outline-offset:2px;border-radius:6px}
::selection{background:rgba(58,224,255,.3);color:#fff}

.container{max-width:1200px;margin:0 auto;padding:0 32px;width:100%}
@media (max-width:768px){.container{padding:0 20px}}

/* ===== header / nav ===== */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(5,8,15,.84);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(58,224,255,.55),rgba(79,124,255,.5),transparent);
  pointer-events:none;
}
.nav{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:inline-flex;align-items:center;gap:9px;font-size:18px;font-weight:800;letter-spacing:.2px;color:var(--t-hi);white-space:nowrap}
.brand-mark{
  width:32px;height:32px;border-radius:10px;flex:none;
  background:linear-gradient(120deg,var(--neo),var(--neo-deep));
  color:#04121c;display:grid;place-items:center;font-size:15px;font-weight:800;
  box-shadow:0 0 18px rgba(58,224,255,.35);
}
.brand-sub{
  font-size:11.5px;font-weight:600;letter-spacing:.5px;color:var(--neo);
  border:1px solid rgba(58,224,255,.35);background:rgba(58,224,255,.09);
  padding:2px 9px;border-radius:999px;line-height:1.6;
}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;padding:9px 13px;border-radius:8px;
  font-size:14.5px;font-weight:500;color:var(--t-mid);
  transition:color .18s ease,background .18s ease;
}
.nav-link:hover{color:var(--t-hi);background:rgba(255,255,255,.055)}
.nav-link.active{color:var(--neo);text-shadow:0 0 16px rgba(58,224,255,.55)}
.nav-link.active::after{
  content:"";position:absolute;left:13px;right:13px;bottom:-1px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--neo),var(--neo-deep));
  box-shadow:0 0 12px rgba(58,224,255,.85);
}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:8px}
.hamburger{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:10px;
  background:rgba(255,255,255,.05);border:1px solid var(--line);
  cursor:pointer;padding:0;place-items:center;
}
.hamburger span{display:block;width:20px;height:2px;margin:3px auto;border-radius:2px;background:var(--t-hi);transition:transform .2s ease,opacity .2s ease}
.mobile-panel{display:none}

/* ===== buttons ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);border:1px solid transparent;
  font-size:15px;font-weight:600;line-height:1.3;cursor:pointer;
  transition:filter .18s ease,box-shadow .18s ease,background .18s ease,transform .18s ease;
}
.btn:active{transform:translateY(1px)}
.btn-sm{padding:9px 16px;font-size:13.5px}
.btn-lg{padding:14px 30px;font-size:16px}
.btn-primary{
  background:linear-gradient(120deg,var(--neo),var(--neo-deep));
  color:#04121c;
  box-shadow:0 8px 22px rgba(58,224,255,.26);
}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 10px 30px rgba(58,224,255,.44)}
.btn-ghost{
  background:rgba(58,224,255,.06);border-color:rgba(58,224,255,.4);color:var(--t-hi);
}
.btn-ghost:hover{background:rgba(58,224,255,.15);border-color:rgba(58,224,255,.65)}
.btn-text{
  display:inline-flex;align-items:center;gap:6px;color:var(--neo);font-size:14px;font-weight:600;
  padding:4px 0;border-bottom:1px solid rgba(58,224,255,.35);
  transition:border-color .18s ease,color .18s ease;
}
.btn-text:hover{border-color:var(--neo);color:#8af0ff}

/* ===== badges / chips ===== */
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:4px 12px;border-radius:999px;font-size:12.5px;font-weight:600;line-height:1.7;
  background:rgba(58,224,255,.09);border:1px solid rgba(58,224,255,.32);color:var(--neo);
}
.badge-dot{width:6px;height:6px;border-radius:50%;background:var(--rose);box-shadow:0 0 0 0 rgba(255,77,94,.55);animation:pulse 1.8s infinite}
.badge-rose{background:rgba(255,77,94,.1);border-color:rgba(255,77,94,.42);color:#ff8b96}
.badge-amber{background:rgba(255,179,71,.1);border-color:rgba(255,179,71,.4);color:var(--amber)}
@keyframes pulse{
  0%{box-shadow:0 0 0 0 rgba(255,77,94,.55)}
  70%{box-shadow:0 0 0 7px rgba(255,77,94,0)}
  100%{box-shadow:0 0 0 0 rgba(255,77,94,0)}
}

/* ===== breadcrumb ===== */
.crumb{
  display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--t-low);
  padding:22px 0 0;overflow-x:auto;white-space:nowrap;scrollbar-width:none;
}
.crumb::-webkit-scrollbar{display:none}
.crumb a{color:var(--t-low);transition:color .18s ease}
.crumb a:hover{color:var(--neo)}
.crumb .sep{color:rgba(255,255,255,.2)}
.crumb .cur{color:var(--t-hi)}

/* ===== hero ===== */
.page-hero{position:relative;padding-bottom:36px;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(720px 340px at 12% 0%,rgba(58,224,255,.13),transparent 70%),
    radial-gradient(560px 300px at 92% 12%,rgba(79,124,255,.13),transparent 72%);
}
.hero-grid{
  position:relative;display:grid;grid-template-columns:1.35fr .85fr;gap:36px;
  align-items:center;padding:26px 0 8px;
}
.hero-eyebrow{margin-bottom:16px;display:flex;flex-wrap:wrap;gap:10px}
.hero-grid h1{
  font-size:clamp(28px,4.2vw,46px);font-weight:800;line-height:1.18;letter-spacing:-.5px;
  margin:0 0 16px;
}
.hero-grid h1 .hl{
  background:linear-gradient(120deg,var(--neo),var(--neo-deep));
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.hero-sub{font-size:15.5px;line-height:1.85;color:var(--t-mid);max-width:600px}
.hero-meta{display:flex;flex-wrap:wrap;gap:10px;margin-top:20px}
.meta-pill{
  display:inline-flex;align-items:center;gap:7px;padding:6px 13px;border-radius:999px;
  background:var(--glass);border:1px solid var(--line);font-size:12.5px;color:var(--t-mid);
}
.meta-pill strong{color:var(--t-hi);font-weight:700}
.hero-visual{
  position:relative;height:230px;border-radius:var(--r-card);overflow:hidden;
  border:1px solid rgba(58,224,255,.18);box-shadow:var(--shadow);
}
.hero-visual img{width:100%;height:100%;object-fit:cover;opacity:.82}
.hero-visual::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.18) 0%,rgba(10,16,32,.72) 58%,var(--bg-0) 100%);
}
.hero-visual .visual-tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
  font-size:12px;color:var(--t-mid);letter-spacing:.4px;
}

/* ===== sections ===== */
.section{position:relative;padding:84px 0}
.section::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(58,224,255,.3),transparent);
}
.section-plain::before{display:none}
@media (max-width:768px){
  .section{padding:52px 0}
  .page-hero{padding-bottom:20px}
}
.sec-head{max-width:720px;margin-bottom:34px}
.sec-head h2{
  font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.32;letter-spacing:-.3px;margin:0 0 10px;
}
.sec-head p{font-size:14px;line-height:1.8;color:var(--t-mid)}
.sec-head-row{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;flex-wrap:wrap;margin-bottom:34px}
.sec-head-row .sec-head{margin-bottom:0}

/* ===== filter bar ===== */
.filter-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  padding:14px 0 0;
}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{
  padding:7px 15px;border-radius:999px;font-size:13px;font-weight:600;
  color:var(--t-mid);background:var(--glass);border:1px solid var(--line);
  transition:all .18s ease;cursor:default;
}
.chip.is-on{
  color:#04121c;background:linear-gradient(120deg,var(--neo),var(--neo-deep));
  border-color:transparent;box-shadow:0 6px 18px rgba(58,224,255,.25);
}
.chip:not(.is-on):hover{color:var(--t-hi);border-color:rgba(58,224,255,.35)}
.sort-note{font-size:12.5px;color:var(--t-low)}
.sort-note b{color:var(--neo);font-weight:600}

/* ===== cards ===== */
.card{
  position:relative;background:var(--glass);border:1px solid rgba(58,224,255,.16);
  border-radius:var(--r-card);box-shadow:var(--shadow);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
  overflow:hidden;
}
.card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(58,224,255,.7),transparent);
  opacity:.7;
}
.card:hover{transform:translateY(-3px);border-color:rgba(58,224,255,.42);box-shadow:var(--glow),var(--shadow)}

/* overview split */
.split{display:grid;grid-template-columns:1.25fr .95fr;gap:24px;align-items:start}
.point-list{display:grid;gap:14px}
.point{
  display:flex;gap:14px;padding:18px 20px;border-radius:var(--r-card);
  background:var(--glass);border:1px solid var(--line);
  transition:border-color .18s ease,transform .18s ease;
}
.point:hover{border-color:rgba(58,224,255,.34);transform:translateY(-2px)}
.point-ico{
  flex:none;width:38px;height:38px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(120deg,rgba(58,224,255,.2),rgba(79,124,255,.14));
  border:1px solid rgba(58,224,255,.3);font-size:15px;font-weight:800;color:var(--neo);
}
.point h3{font-size:16.5px;font-weight:600;line-height:1.5;margin:0 0 6px}
.point p{font-size:13.8px;line-height:1.8;color:var(--t-mid)}

.status-card{padding:24px}
.status-card h3{font-size:15px;font-weight:700;color:var(--t-hi);margin:0 0 16px;letter-spacing:.3px}
.status-row{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:12px 0;border-bottom:1px dashed rgba(255,255,255,.09);font-size:13.5px;
}
.status-row:last-of-type{border-bottom:0}
.status-row span:first-child{color:var(--t-mid)}
.status-ok{display:inline-flex;align-items:center;gap:6px;color:var(--neo);font-weight:600}
.status-ok i{width:7px;height:7px;border-radius:50%;background:var(--neo);box-shadow:0 0 10px var(--neo);display:inline-block}
.status-card .btn{width:100%;margin-top:18px}
.status-updated{font-size:12px;color:var(--t-low);margin-top:12px;text-align:center}

/* entry grid: 左大右小 */
.entry-grid{
  display:grid;grid-template-columns:1.45fr 1fr;gap:22px;
}
.entry-card{
  display:flex;flex-direction:column;background:var(--glass);
  border:1px solid rgba(58,224,255,.14);border-radius:var(--r-card);
  overflow:hidden;box-shadow:var(--shadow);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.entry-card:hover{transform:translateY(-3px);border-color:rgba(58,224,255,.4);box-shadow:var(--glow),var(--shadow)}
.entry-thumb{position:relative;aspect-ratio:16/9;background:var(--bg-2);overflow:hidden}
.entry-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.entry-card:hover .entry-thumb img{transform:scale(1.04)}
.entry-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:11px;flex:1}
.entry-body h3{font-size:18px;font-weight:600;line-height:1.5}
.entry-lead{grid-row:span 2}
.entry-lead .entry-thumb{aspect-ratio:16/10}
.entry-lead .entry-body h3{font-size:22px;line-height:1.45}
.entry-lead .entry-body{padding:22px 24px 24px}
.entry-desc{
  font-size:13.8px;line-height:1.8;color:var(--t-mid);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.entry-foot{
  margin-top:auto;display:flex;align-items:center;justify-content:space-between;gap:12px;
  font-size:12.5px;color:var(--t-low);padding-top:12px;border-top:1px solid rgba(255,255,255,.06);
}
.entry-arrow{color:var(--neo);font-weight:600;display:inline-flex;align-items:center;gap:5px;transition:gap .18s ease}
.entry-card:hover .entry-arrow{gap:9px}
.entry-wide{
  margin-top:22px;display:grid;grid-template-columns:180px 1fr auto;gap:22px;align-items:center;
  padding:18px;border-radius:var(--r-card);background:var(--glass);
  border:1px solid rgba(58,224,255,.14);box-shadow:var(--shadow);
  transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;
}
.entry-wide:hover{transform:translateY(-3px);border-color:rgba(58,224,255,.4);box-shadow:var(--glow),var(--shadow)}
.entry-wide img{width:100%;height:104px;object-fit:cover;border-radius:var(--r-img)}
.entry-wide h3{font-size:17px;font-weight:600;margin:8px 0 6px;line-height:1.5}
.entry-wide p{font-size:13.5px;line-height:1.75;color:var(--t-mid)}

/* ===== steps ===== */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:0;position:relative}
.step{position:relative;padding:0 22px}
.step:first-child{padding-left:0}
.step:last-child{padding-right:0}
.step::before{
  content:"";position:absolute;top:22px;left:0;right:0;height:1px;
  background:repeating-linear-gradient(90deg,rgba(58,224,255,.42) 0 6px,transparent 6px 14px);
}
.step:first-child::before{left:22px}
.step-num{
  position:relative;z-index:2;display:grid;place-items:center;
  width:44px;height:44px;border-radius:12px;font-weight:800;font-size:15px;color:#04121c;
  background:linear-gradient(120deg,var(--neo),var(--neo-deep));
  box-shadow:0 0 20px rgba(58,224,255,.32);margin-bottom:18px;
}
.step h3{font-size:17px;font-weight:600;margin:0 0 8px;line-height:1.5}
.step p{font-size:13.8px;line-height:1.8;color:var(--t-mid)}
.step-note{
  display:inline-block;margin-top:12px;font-size:12px;color:var(--t-low);
  padding:3px 10px;border-radius:999px;background:rgba(255,255,255,.04);
  border:1px solid var(--line);
}

/* ===== stats ===== */
.stat-strip{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;margin-top:36px;
}
.stat{
  padding:20px 22px;border-radius:var(--r-card);background:var(--bg-2);
  border:1px solid var(--line);
}
.stat b{
  display:block;font-size:28px;font-weight:800;letter-spacing:-.5px;
  background:linear-gradient(120deg,var(--neo),var(--neo-deep));
  -webkit-background-clip:text;background-clip:text;color:transparent;
  font-variant-numeric:tabular-nums;
}
.stat span{display:block;font-size:12.5px;color:var(--t-mid);margin-top:4px}

/* ===== faq ===== */
.faq-grid{display:grid;grid-template-columns:1.6fr .8fr;gap:26px;align-items:start}
.faq-list{display:grid;gap:12px}
.faq-item{
  border-radius:var(--r-card);background:var(--glass);border:1px solid var(--line);
  overflow:hidden;transition:border-color .18s ease,box-shadow .18s ease;
}
.faq-item.open{border-color:rgba(58,224,255,.4);box-shadow:0 0 0 1px rgba(58,224,255,.12)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:15.5px;font-weight:600;color:var(--t-hi);line-height:1.6;
}
.faq-q:hover{color:var(--neo)}
.faq-ico{
  flex:none;width:26px;height:26px;border-radius:8px;display:grid;place-items:center;
  border:1px solid rgba(58,224,255,.35);color:var(--neo);font-size:15px;font-weight:700;
  transition:transform .25s ease,background .18s ease;
}
.faq-item.open .faq-ico{transform:rotate(45deg);background:rgba(58,224,255,.14)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s ease}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a>div{overflow:hidden}
.faq-a p{
  padding:0 20px 20px;font-size:14.5px;line-height:1.85;color:var(--t-mid);
}
.faq-aside{padding:24px;border-radius:var(--r-card);background:var(--bg-2);border:1px solid var(--line)}
.faq-aside h3{font-size:16px;font-weight:700;margin:0 0 10px}
.faq-aside p{font-size:13.5px;line-height:1.8;color:var(--t-mid);margin-bottom:16px}

/* ===== cta ===== */
.cta-band{
  position:relative;overflow:hidden;border-radius:18px;
  background:var(--bg-1);border:1px solid rgba(58,224,255,.22);
  padding:44px 40px;display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  box-shadow:var(--shadow);
}
.cta-band::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:
    radial-gradient(420px 220px at 8% 20%,rgba(58,224,255,.18),transparent 70%),
    radial-gradient(420px 220px at 96% 90%,rgba(79,124,255,.16),transparent 72%);
}
.cta-band>div{position:relative;z-index:2;max-width:620px}
.cta-band h2{font-size:clamp(21px,2.4vw,29px);font-weight:700;line-height:1.35;margin:0 0 10px}
.cta-band p{font-size:14px;line-height:1.8;color:var(--t-mid)}
.cta-actions{position:relative;z-index:2;display:flex;gap:12px;flex-wrap:wrap}

/* ===== footer ===== */
.site-footer{background:var(--bg-0);position:relative;padding:64px 0 26px;margin-top:20px}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(58,224,255,.55),transparent);
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:34px}
.footer-brand p{font-size:13.5px;line-height:1.85;color:var(--t-mid);margin-top:16px;max-width:320px}
.footer-col h4{font-size:13.5px;font-weight:700;letter-spacing:.4px;color:var(--t-hi);margin:6px 0 14px}
.footer-col ul{display:grid;gap:9px}
.footer-col li a{font-size:13.5px;color:var(--t-mid);transition:color .18s ease}
.footer-col li a:hover{color:var(--neo)}
.footer-col p{font-size:13px;line-height:1.85;color:var(--t-mid)}
.footer-bottom{
  margin-top:42px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:12.5px;color:var(--t-low);
}
.footer-bottom .dot{color:var(--t-low)}
.footer-bottom .dot::before{content:"·";margin-right:10px;color:rgba(255,255,255,.2)}

/* ===== responsive ===== */
@media (max-width:1024px){
  .hero-grid{grid-template-columns:1fr;gap:24px}
  .hero-visual{height:210px;order:-1}
  .split{grid-template-columns:1fr}
  .entry-grid{grid-template-columns:1fr 1fr}
  .entry-lead{grid-row:auto}
  .faq-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px}
}
@media (max-width:900px){
  .nav-links,.nav-right{display:none}
  .hamburger{display:grid}
  .mobile-panel{
    display:none;flex-direction:column;gap:6px;padding:14px 20px 22px;
    background:var(--bg-1);border-top:1px solid var(--line);
  }
  .mobile-panel.open{display:flex}
  .m-link{
    display:flex;align-items:center;justify-content:space-between;
    padding:14px 12px;font-size:15px;color:var(--t-mid);border-radius:10px;
    border-bottom:1px solid rgba(255,255,255,.06);transition:color .18s ease,background .18s ease;
  }
  .m-link:hover{color:var(--t-hi);background:rgba(255,255,255,.04)}
  .m-link.active{color:var(--neo)}
  .mobile-panel .btn{margin-top:14px;width:100%}
  .nav{height:56px}
}
@media (max-width:768px){
  .entry-grid{grid-template-columns:1fr}
  .entry-wide{grid-template-columns:1fr;gap:14px}
  .entry-wide img{height:150px}
  .entry-wide .btn{width:100%}
  .steps{grid-template-columns:1fr;gap:26px}
  .step{padding:0 0 0 20px;border-left:1px dashed rgba(58,224,255,.28)}
  .step::before{display:none}
  .step:first-child,.step:last-child{padding-left:20px}
  .step-num{width:38px;height:38px;font-size:14px;margin-bottom:14px}
  .stat-strip{grid-template-columns:1fr;gap:12px}
  .cta-band{padding:30px 22px;gap:20px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1 1 auto}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-brand p{max-width:none}
  .hero-grid h1{font-size:clamp(24px,6vw,32px)}
}
@media (max-width:520px){
  .brand{font-size:16px;gap:7px}
  .brand-sub{font-size:10.5px;padding:2px 7px}
  .entry-lead .entry-body{padding:18px 18px 20px}
  .faq-q{font-size:14.5px;padding:16px 16px}
  .faq-a p{padding:0 16px 18px}
  .section{padding:44px 0}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .card:hover,.entry-card:hover,.entry-wide:hover,.point:hover{transform:none}
}

/* roulang page: article */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1020;
  --bg-2:#0F172B;
  --neo:#3AE0FF;
  --neo-deep:#4F7CFF;
  --rose:#FF4D5E;
  --amber:#FFB347;
  --t-hi:#EAF2FF;
  --t-mid:#9FB0CC;
  --t-low:#66799A;
  --line:rgba(255,255,255,.08);
  --line-neo:rgba(58,224,255,.16);
  --glass:rgba(255,255,255,.045);
  --r-card:14px;
  --r-btn:10px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(58,224,255,.4),0 0 26px rgba(58,224,255,.25);
  --font:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --num:"Space Grotesk",Inter,var(--font);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{margin:0;background:var(--bg-0);color:var(--t-hi);font-family:var(--font);font-size:16px;line-height:1.85;overflow-x:hidden;-webkit-font-smoothing:antialiased}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
:focus-visible{outline:2px solid var(--neo);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 32px}

/* 顶部导航 */
.site-header{position:sticky;top:0;z-index:80;background:rgba(5,8,15,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line-neo)}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:0;height:1px;background:linear-gradient(90deg,transparent,rgba(58,224,255,.7),transparent)}
.nav{display:flex;align-items:center;gap:16px;height:64px;position:relative}
.brand{display:inline-flex;align-items:center;gap:8px;font-weight:800;font-size:18px;letter-spacing:.3px;white-space:nowrap;color:var(--t-hi)}
.brand-mark{display:grid;place-items:center;width:30px;height:30px;border-radius:9px;background:linear-gradient(135deg,var(--neo),var(--neo-deep));color:#04121c;font-size:15px;font-weight:900;box-shadow:0 0 18px rgba(58,224,255,.35)}
.brand-sub{font-size:12px;font-weight:600;color:var(--neo);background:rgba(58,224,255,.1);border:1px solid rgba(58,224,255,.28);padding:2px 8px;border-radius:999px;letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{position:relative;padding:8px 14px;border-radius:8px;font-size:14px;color:var(--t-mid);transition:color .18s ease,background .18s ease}
.nav-link:hover{color:var(--t-hi);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--neo);text-shadow:0 0 14px rgba(58,224,255,.45)}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--neo),var(--neo-deep));box-shadow:0 0 10px rgba(58,224,255,.7)}
.nav-right{display:flex;align-items:center;gap:10px;margin-left:8px}
.hamburger{display:none;flex-direction:column;justify-content:center;gap:4px;width:44px;height:44px;border-radius:10px;border:1px solid var(--line-neo);background:rgba(255,255,255,.04)}
.hamburger span{display:block;width:18px;height:2px;margin:0 auto;background:var(--t-hi);border-radius:2px;transition:transform .2s ease}
.mobile-panel{display:none;flex-direction:column;gap:6px;padding:14px 20px 20px;background:var(--bg-1);border-top:1px solid var(--line)}
.mobile-panel.open{display:flex}
.m-link{display:flex;justify-content:space-between;align-items:center;padding:14px 12px;border-radius:10px;font-size:15px;color:var(--t-mid);border-bottom:1px solid var(--line)}
.m-link:hover{color:var(--t-hi);background:rgba(255,255,255,.04)}
.m-link.active{color:var(--neo)}
.mobile-panel .btn{margin-top:10px}

/* 按钮与标签 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--r-btn);font-weight:600;font-size:15px;padding:12px 22px;transition:transform .18s ease,box-shadow .18s ease,filter .18s ease,background .18s ease,border-color .18s ease;border:1px solid transparent;min-height:44px;line-height:1.2}
.btn-primary{background:linear-gradient(120deg,var(--neo),var(--neo-deep));color:#04121c;box-shadow:0 6px 22px rgba(58,224,255,.28)}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 8px 30px rgba(58,224,255,.45);transform:translateY(-1px)}
.btn-primary:active{transform:translateY(0);box-shadow:0 4px 14px rgba(58,224,255,.3)}
.btn-ghost{border-color:rgba(58,224,255,.35);color:var(--t-hi);background:rgba(255,255,255,.03)}
.btn-ghost:hover{background:rgba(58,224,255,.1);border-color:rgba(58,224,255,.6);transform:translateY(-1px)}
.btn-sm{padding:9px 16px;font-size:13px;min-height:38px}
.btn-lg{padding:14px 28px;font-size:16px}
.btn-text{color:var(--neo);font-size:14px;display:inline-flex;align-items:center;gap:6px;padding:6px 0;border-bottom:1px solid transparent;transition:border-color .18s ease}
.btn-text:hover{border-bottom-color:var(--neo)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;font-weight:600;letter-spacing:.3px;background:var(--glass);border:1px solid var(--line-neo);color:var(--neo)}
.badge-rose{color:var(--rose);border-color:rgba(255,77,94,.35);background:rgba(255,77,94,.08)}
.badge-dot{width:6px;height:6px;border-radius:50%;background:var(--rose);animation:pulse 2.2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,77,94,.55)}70%{box-shadow:0 0 0 8px rgba(255,77,94,0)}100%{box-shadow:0 0 0 0 rgba(255,77,94,0)}}

/* 面包屑与文章头 */
.crumbs{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--t-low);padding:24px 0 0;overflow-x:auto;white-space:nowrap;scrollbar-width:none}
.crumbs::-webkit-scrollbar{display:none}
.crumbs a{color:var(--t-low);transition:color .16s ease}
.crumbs a:hover{color:var(--neo)}
.crumbs .sep{color:rgba(255,255,255,.2)}
.crumbs .current{color:var(--t-hi);max-width:460px;overflow:hidden;text-overflow:ellipsis}
.article-head{padding:22px 0 24px;border-bottom:1px solid var(--line)}
.article-head h1{font-size:clamp(26px,3.6vw,42px);font-weight:800;line-height:1.24;letter-spacing:-.5px;margin:14px 0 16px;max-width:920px}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:8px 20px;font-size:13px;color:var(--t-low)}
.article-meta span{display:inline-flex;align-items:center;gap:6px}
.article-meta b{color:var(--t-mid);font-weight:600}
.cover-wrap{position:relative;margin:28px 0 0;border-radius:12px;overflow:hidden;border:1px solid var(--line);background:var(--bg-2)}
.cover-wrap img{width:100%;aspect-ratio:21/9;object-fit:cover}
.cover-wrap::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(5,8,15,.04),rgba(5,8,15,.55));pointer-events:none}

/* 正文布局 */
.article-shell{display:grid;grid-template-columns:minmax(0,1fr) 320px;gap:40px;padding:36px 0 8px;align-items:start}
.article-card{background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);padding:30px 32px;box-shadow:var(--shadow);backdrop-filter:blur(10px)}
.article-body{font-size:16px;line-height:1.9;color:#D3DDEE;word-break:break-word}
.article-body p{margin:0 0 18px}
.article-body h2{font-size:24px;font-weight:700;line-height:1.4;margin:40px 0 16px;padding-left:14px;position:relative;color:var(--t-hi)}
.article-body h2:first-child{margin-top:0}
.article-body h2::before{content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;background:linear-gradient(180deg,var(--neo),var(--neo-deep))}
.article-body h3{font-size:19px;font-weight:600;line-height:1.5;margin:28px 0 12px;color:var(--t-hi)}
.article-body h4{font-size:17px;font-weight:600;margin:22px 0 10px;color:var(--t-hi)}
.article-body ul,.article-body ol{margin:0 0 18px;padding-left:22px;list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:6px 0}
.article-body a{color:var(--neo);border-bottom:1px solid rgba(58,224,255,.4);transition:border-color .16s ease}
.article-body a:hover{border-bottom-color:var(--neo)}
.article-body blockquote{margin:22px 0;padding:16px 20px;background:rgba(58,224,255,.06);border-left:3px solid var(--neo);border-radius:0 10px 10px 0;color:var(--t-mid);font-style:normal}
.article-body img{border-radius:12px;margin:22px 0;width:100%;height:auto}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:14px;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.article-body th{background:rgba(255,255,255,.05);color:var(--t-hi);font-weight:600}
.article-body code{font-family:ui-monospace,Menlo,Consolas,monospace;background:var(--bg-2);padding:2px 6px;border-radius:5px;font-size:14px;color:var(--neo)}
.article-body pre{background:var(--bg-2);padding:16px;border-radius:10px;overflow-x:auto;border:1px solid var(--line)}
.article-body pre code{background:none;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:32px 0}

/* 文末 */
.article-end{border-top:1px solid var(--line);margin-top:34px;padding-top:26px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px}
.article-end p{font-size:14px;color:var(--t-mid);max-width:520px;line-height:1.8}

/* 侧栏 */
.side-stack{display:flex;flex-direction:column;gap:18px;position:sticky;top:88px}
.side-card{background:var(--glass);border:1px solid var(--line-neo);border-radius:var(--r-card);padding:22px;backdrop-filter:blur(14px)}
.side-card h3{font-size:16px;font-weight:700;margin:0 0 12px;display:flex;align-items:center;gap:8px;color:var(--t-hi)}
.side-card h3 i{width:6px;height:6px;border-radius:50%;background:var(--neo);box-shadow:0 0 10px rgba(58,224,255,.8);font-style:normal}
.side-list li{display:flex;justify-content:space-between;gap:12px;padding:10px 0;border-bottom:1px dashed rgba(255,255,255,.08);font-size:13px;color:var(--t-mid)}
.side-list li:last-child{border-bottom:0;padding-bottom:0}
.side-list strong{color:var(--t-hi);font-weight:600;white-space:nowrap}
.side-cta{background:linear-gradient(160deg,rgba(58,224,255,.13),rgba(79,124,255,.07));border:1px solid rgba(58,224,255,.32)}
.side-cta p{font-size:13.5px;color:var(--t-mid);line-height:1.8;margin:0 0 16px}
.side-cta .btn{width:100%}

/* 通用板块 */
.section{padding:64px 0}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:14px;margin-bottom:26px}
.section-head h2{font-size:clamp(22px,2.6vw,32px);font-weight:700;line-height:1.3;letter-spacing:-.3px}
.section-head .sub{font-size:14px;color:var(--t-mid);margin-top:8px;line-height:1.8}
.divider{height:1px;background:linear-gradient(90deg,transparent,rgba(58,224,255,.35),transparent)}

/* 相关推荐 */
.rel-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px}
.rel-card{display:flex;flex-direction:column;background:var(--glass);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden;transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease;box-shadow:var(--shadow)}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(58,224,255,.4);box-shadow:var(--glow)}
.rel-card img{width:100%;aspect-ratio:16/9;object-fit:cover}
.rel-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body h3{font-size:17px;font-weight:600;line-height:1.45;color:var(--t-hi)}
.rel-body p{font-size:13.5px;color:var(--t-mid);line-height:1.75;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rel-foot{margin-top:auto;display:flex;justify-content:space-between;align-items:center;font-size:12px;color:var(--t-low);padding-top:6px}

/* FAQ */
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:900px}
.faq-item{background:var(--glass);border:1px solid var(--line);border-radius:12px;overflow:hidden;transition:border-color .2s ease}
.faq-item.open{border-color:rgba(58,224,255,.35)}
.faq-q{display:flex;justify-content:space-between;align-items:center;gap:16px;width:100%;padding:18px 22px;text-align:left;font-size:16px;font-weight:600;color:var(--t-hi)}
.faq-q .ico{flex:none;width:22px;height:22px;display:grid;place-items:center;border-radius:50%;border:1px solid rgba(58,224,255,.4);color:var(--neo);font-size:14px;line-height:1;transition:transform .22s ease}
.faq-item.open .faq-q .ico{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease;color:var(--t-mid);font-size:15px;line-height:1.85}
.faq-a > div{padding:0 22px 20px}
.faq-item.open .faq-a{max-height:460px}

/* 转化区 */
.cta-band{position:relative;overflow:hidden;background:var(--bg-1);border:1px solid var(--line-neo);border-radius:18px;padding:42px;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px}
.cta-band::before{content:"";position:absolute;top:-45%;right:-8%;width:440px;height:440px;background:radial-gradient(circle,rgba(58,224,255,.18),transparent 65%);pointer-events:none}
.cta-band h2{font-size:clamp(21px,2.4vw,30px);font-weight:700;line-height:1.32;position:relative}
.cta-band p{font-size:14.5px;color:var(--t-mid);margin-top:10px;max-width:560px;line-height:1.8;position:relative}
.cta-band .cta-actions{position:relative;display:flex;flex-wrap:wrap;gap:12px}

/* 空态 */
.empty-state{text-align:center;padding:52px 20px}
.empty-icon{width:58px;height:58px;margin:0 auto 18px;border-radius:16px;border:1px dashed rgba(58,224,255,.4);display:grid;place-items:center;color:var(--neo);font-size:22px;background:rgba(58,224,255,.05)}
.empty-state h2{font-size:22px;font-weight:700;margin-bottom:10px}
.empty-state p{font-size:14.5px;color:var(--t-mid);max-width:440px;margin:0 auto 22px;line-height:1.8}

/* 页脚 */
.site-footer{position:relative;background:var(--bg-0);border-top:1px solid var(--line);padding:56px 0 0;margin-top:24px}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(58,224,255,.6),transparent)}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:34px}
.footer-brand p{font-size:14px;color:var(--t-mid);margin-top:14px;line-height:1.8;max-width:330px}
.footer-col h4{font-size:14px;font-weight:700;margin:0 0 14px;color:var(--t-hi)}
.footer-col ul li{margin-bottom:10px}
.footer-col a{font-size:14px;color:var(--t-mid);transition:color .16s ease}
.footer-col a:hover{color:var(--neo)}
.footer-col p{font-size:13px;color:var(--t-low);line-height:1.8}
.footer-bottom{display:flex;flex-wrap:wrap;justify-content:space-between;gap:10px;padding:18px 0;border-top:1px solid var(--line);font-size:13px;color:var(--t-low)}
.footer-bottom .dot{color:var(--t-low);letter-spacing:.4px}

@media (max-width:1024px){
  .article-shell{grid-template-columns:1fr;gap:26px}
  .side-stack{position:static;display:grid;grid-template-columns:1fr 1fr;gap:16px}
  .rel-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media (max-width:900px){
  .nav-links,.nav-right{display:none}
  .hamburger{display:flex;margin-left:auto}
  .container{padding:0 20px}
  .nav{height:60px}
}
@media (max-width:680px){
  .side-stack{grid-template-columns:1fr}
  .rel-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .section{padding:44px 0}
  .article-card{padding:22px 18px}
  .article-head h1{font-size:23px;letter-spacing:0}
  .article-body h2{font-size:21px;margin-top:32px}
  .article-body h3{font-size:18px}
  .article-body{font-size:15.5px}
  .cover-wrap img{aspect-ratio:16/9}
  .cta-band{padding:26px;border-radius:14px}
  .cta-band .cta-actions{width:100%}
  .cta-band .btn{width:100%}
  .faq-q{padding:16px 18px;font-size:15px}
  .faq-a > div{padding:0 18px 18px}
  .article-end .btn{width:100%}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category2 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A1020;
  --bg-2:#0F172B;
  --neo:#3AE0FF;
  --neo-deep:#4F7CFF;
  --rose:#FF4D5E;
  --amber:#FFB347;
  --t-hi:#EAF2FF;
  --t-mid:#9FB0CC;
  --t-low:#66799A;
  --line:rgba(255,255,255,.08);
  --glass:rgba(255,255,255,.045);
  --radius:14px;
  --shadow:0 10px 30px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(58,224,255,.4),0 0 26px rgba(58,224,255,.25);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Space Grotesk",Inter,"PingFang SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
.body-default{
  margin:0;
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.85;
  color:var(--t-mid);
  background-color:var(--bg-0);
  background-image:
    radial-gradient(760px 380px at 82% -8%,rgba(58,224,255,.10),transparent 62%),
    radial-gradient(620px 320px at 4% 12%,rgba(79,124,255,.10),transparent 66%);
  background-repeat:no-repeat;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button{font-family:inherit;font-size:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0}
ul,ol{list-style:none}
:focus-visible{outline:2px solid var(--neo);outline-offset:2px;border-radius:8px}
.container{width:100%;max-width:1200px;margin:0 auto;padding-left:20px;padding-right:20px}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px}}
.rule{height:1px;background:linear-gradient(90deg,transparent,rgba(58,224,255,.45),transparent)}
.section{padding:52px 0;position:relative}
@media (min-width:768px){.section{padding:80px 0}}
.section-alt{background:linear-gradient(180deg,rgba(10,16,32,.9),rgba(5,8,15,.2))}
.hl{background:linear-gradient(120deg,var(--neo),var(--neo-deep));-webkit-background-clip:text;background-clip:text;color:transparent}

/* Header / Nav */
.site-header{position:sticky;top:0;z-index:60;background:rgba(5,8,15,.82);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,transparent,rgba(58,224,255,.75),rgba(79,124,255,.45),transparent);opacity:.75}
.nav{display:flex;align-items:center;justify-content:space-between;gap:18px;height:64px}
.brand{display:inline-flex;align-items:center;gap:9px;font-weight:800;font-size:19px;color:var(--t-hi);letter-spacing:.4px;line-height:1}
.brand-mark{width:32px;height:32px;border-radius:10px;display:grid;place-items:center;background:linear-gradient(120deg,var(--neo),var(--neo-deep));color:#04101A;font-weight:800;font-size:16px;box-shadow:0 6px 18px rgba(58,224,255,.28)}
.brand-sub{font-size:11.5px;font-weight:600;letter-spacing:1px;color:var(--neo);border:1px solid rgba(58,224,255,.32);background:rgba(58,224,255,.08);border-radius:999px;padding:3px 9px}
.nav-links{display:flex;align-items:center;gap:4px}
.nav-link{position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;border-radius:10px;font-size:14.5px;color:var(--t-mid);transition:color .18s ease,background .18s ease}
.nav-link:hover{color:var(--t-hi);background:rgba(255,255,255,.05)}
.nav-link.active{color:var(--t-hi);text-shadow:0 0 14px rgba(58,224,255,.55)}
.nav-link.active::after{content:"";position:absolute;left:14px;right:14px;bottom:3px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--neo),var(--neo-deep));box-shadow:0 0 10px rgba(58,224,255,.7)}
.nav-right{display:flex;align-items:center;gap:12px}
.hamburger{display:none;width:44px;height:44px;padding:0;border-radius:10px;border:1px solid rgba(58,224,255,.25);background:rgba(255,255,255,.04);cursor:pointer}
.hamburger span{display:block;width:18px;height:2px;margin:4px auto;border-radius:2px;background:var(--t-hi);transition:transform .2s ease,opacity .2s ease}
.mobile-panel{display:none;padding:10px 20px 22px;background:var(--bg-1);border-bottom:1px solid var(--line)}
.mobile-panel.open{display:block}
.m-link{display:flex;align-items:center;justify-content:space-between;min-height:48px;padding:6px 4px;border-bottom:1px solid var(--line);font-size:15px;color:var(--t-mid)}
.m-link.active{color:var(--neo);text-shadow:0 0 12px rgba(58,224,255,.45)}
.mobile-panel .btn{width:100%;margin-top:18px}
@media (max-width:900px){
  .nav-links,.nav-right{display:none}
  .hamburger{display:block}
}

/* Buttons */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:10px;font-weight:600;line-height:1;border:1px solid transparent;cursor:pointer;transition:transform .18s ease,box-shadow .18s ease,background .18s ease,filter .18s ease}
.btn:active{transform:translateY(1px)}
.btn-primary{background:linear-gradient(120deg,var(--neo),var(--neo-deep));color:#03101B;box-shadow:0 8px 22px rgba(58,224,255,.22)}
.btn-primary:hover{filter:brightness(1.08);box-shadow:0 0 0 1px rgba(58,224,255,.5),0 0 28px rgba(58,224,255,.35)}
.btn-ghost{background:rgba(255,255,255,.04);border-color:rgba(58,224,255,.3);color:var(--t-hi)}
.btn-ghost:hover{background:rgba(58,224,255,.1);box-shadow:0 0 20px rgba(58,224,255,.16)}
.btn-sm{height:38px;padding:0 16px;font-size:13.5px}
.btn-md{height:46px;padding:0 22px;font-size:15px}
.btn-lg{height:52px;padding:0 30px;font-size:16px}
.btn-text{display:inline-flex;align-items:center;gap:6px;color:var(--neo);font-size:14px;font-weight:600;border-bottom:1px solid transparent;transition:border-color .18s ease,color .18s ease;padding-bottom:2px}
.btn-text:hover{border-bottom-color:var(--neo)}

/* Badges / pills */
.badge{display:inline-flex;align-items:center;gap:7px;padding:5px 12px;border-radius:999px;font-size:12.5px;font-weight:600;letter-spacing:.2px;border:1px solid rgba(58,224,255,.28);background:rgba(58,224,255,.08);color:#9BE9FF}
.badge-rose{border-color:rgba(255,77,94,.34);background:rgba(255,77,94,.1);color:#FFA8B0}
.badge-amber{border-color:rgba(255,179,71,.34);background:rgba(255,179,71,.1);color:#FFCB85}
.pulse-dot{width:7px;height:7px;border-radius:50%;background:var(--rose);box-shadow:0 0 0 0 rgba(255,77,94,.6);animation:pulse 2.2s infinite}
@keyframes pulse{0%{box-shadow:0 0 0 0 rgba(255,77,94,.55)}70%{box-shadow:0 0 0 8px rgba(255,77,94,0)}100%{box-shadow:0 0 0 0 rgba(255,77,94,0)}}

/* Breadcrumb */
.crumb{display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--t-low);padding:18px 0 0;overflow-x:auto;white-space:nowrap}
.crumb a{color:var(--t-low);transition:color .18s ease}
.crumb a:hover{color:var(--neo)}
.crumb .sep{color:rgba(255,255,255,.2)}
.crumb .cur{color:var(--t-hi)}

/* Category hero */
.cat-hero{position:relative;margin-top:18px;padding:30px;border-radius:20px;overflow:hidden;border:1px solid rgba(58,224,255,.16);background:linear-gradient(140deg,rgba(15,23,43,.94),rgba(10,16,32,.88));box-shadow:var(--shadow)}
.cat-hero::before{content:"";position:absolute;inset:0;pointer-events:none;background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.06) 0 1px,transparent 1px 48px),repeating-linear-gradient(90deg,rgba(255,255,255,.06) 0 1px,transparent 1px 48px);opacity:.16;mask-image:radial-gradient(120% 90% at 20% 0%,#000 20%,transparent 78%);-webkit-mask-image:radial-gradient(120% 90% at 20% 0%,#000 20%,transparent 78%)}
.cat-hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1.45fr .55fr;gap:34px;align-items:center}
.cat-hero h1{font-size:clamp(26px,3.6vw,42px);line-height:1.2;font-weight:800;letter-spacing:-.5px;color:var(--t-hi);margin:14px 0 14px}
.cat-hero .lead{font-size:15.5px;line-height:1.8;max-width:56ch;color:var(--t-mid)}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px}
.hero-pills{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.pill{display:inline-flex;align-items:center;gap:8px;padding:6px 13px;border-radius:999px;font-size:12.5px;color:var(--t-mid);background:rgba(255,255,255,.045);border:1px solid var(--line)}
.dot-neo{width:6px;height:6px;border-radius:50%;background:var(--neo);box-shadow:0 0 8px rgba(58,224,255,.9)}
.cat-hero-media{position:relative;height:220px;border-radius:14px;overflow:hidden;border:1px solid rgba(255,255,255,.1)}
.cat-hero-media img{width:100%;height:100%;object-fit:cover;opacity:.9}
.cat-hero-media::after{content:"";position:absolute;inset:0;background:linear-gradient(to top,var(--bg-1),rgba(10,16,32,.1) 62%)}
@media (max-width:860px){
  .cat-hero{padding:24px}
  .cat-hero-inner{grid-template-columns:1fr;gap:22px}
  .cat-hero-media{height:170px}
}

/* Chips bar */
.chips-bar{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;margin-top:26px}
.chips{display:flex;flex-wrap:wrap;gap:9px}
.chip{padding:8px 16px;border-radius:999px;font-size:13.5px;color:var(--t-mid);border:1px solid var(--line);background:rgba(255,255,255,.03);transition:.18s ease}
.chip:hover{color:var(--t-hi);border-color:rgba(58,224,255,.3)}
.chip.is-active{background:rgba(58,224,255,.14);border-color:rgba(58,224,255,.45);color:#B7F1FF;box-shadow:0 0 18px rgba(58,224,255,.16)}
.sort-note{font-size:12.5px;color:var(--t-low)}

/* Section head */
.sec-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:34px}
.sec-title{font-size:clamp(22px,2.6vw,34px);font-weight:700;line-height:1.3;color:var(--t-hi);letter-spacing:-.3px}
.sec-sub{font-size:14px;line-height:1.75;color:var(--t-mid);margin-top:9px;max-width:60ch}

/* Guide rows */
.guide-list{display:flex;flex-direction:column}
.guide-row{display:grid;grid-template-columns:230px 1fr;gap:26px;padding:26px 0;border-bottom:1px solid var(--line);transition:background .2s ease}
.guide-row:first-child{padding-top:0}
.guide-row:last-child{border-bottom:0;padding-bottom:0}
.guide-thumb{position:relative;border-radius:12px;overflow:hidden;border:1px solid rgba(255,255,255,.08)}
.guide-thumb img{width:100%;height:142px;object-fit:cover;transition:transform .35s ease}
.guide-row:hover .guide-thumb img{transform:scale(1.04)}
.guide-row:hover .guide-title{color:var(--neo)}
.guide-body{display:flex;flex-direction:column;gap:10px;min-width:0}
.guide-title{font-size:19px;font-weight:600;line-height:1.5;color:var(--t-hi);transition:color .18s ease}
.guide-desc{font-size:14.5px;line-height:1.8;color:var(--t-mid)}
.guide-meta{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-top:2px;font-size:12.5px;color:var(--t-low)}
.guide-tag{display:inline-flex;align-items:center;padding:3px 10px;border-radius:999px;font-size:12px;color:#9BE9FF;background:rgba(58,224,255,.08);border:1px solid rgba(58,224,255,.24)}
@media (max-width:700px){
  .guide-row{grid-template-columns:1fr;gap:16px;padding:22px 0}
  .guide-thumb img{height:170px}
  .guide-title{font-size:17.5px}
}

/* Steps */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;position:relative}
.step{position:relative;padding:22px;border-radius:var(--radius);background:var(--glass);border:1px solid var(--line);box-shadow:inset 0 1px 0 rgba(255,255,255,.06);transition:transform .18s ease,border-color .18s ease,box-shadow .18s ease}
.step:hover{transform:translateY(-3px);border-color:rgba(58,224,255,.4);box-shadow:var(--glow)}
.step:nth-child(2){margin-top:18px}
.step:nth-child(3){margin-top:36px}
.step:nth-child(4){margin-top:54px}
.step-num{font-family:var(--font-num);font-size:13px;font-weight:700;letter-spacing:1.4px;color:var(--neo)}
.step h3{font-size:18px;font-weight:600;line-height:1.45;color:var(--t-hi);margin:10px 0 8px}
.step p{font-size:14px;line-height:1.75;color:var(--t-mid)}
@media (max-width:900px){
  .steps{grid-template-columns:repeat(2,1fr);gap:14px}
  .step:nth-child(n){margin-top:0}
}
@media (max-width:560px){
  .steps{grid-template-columns:1fr}
}

/* Compare panels */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.panel{padding:26px;border-radius:var(--radius);background:var(--glass);border:1px solid var(--line);box-shadow:inset 0 1px 0 rgba(255,255,255,.06)}
.panel-good{border-color:rgba(58,224,255,.28);box-shadow:inset 0 1px 0 rgba(58,224,255,.3),0 12px 30px rgba(0,0,0,.35)}
.panel-bad{border-color:rgba(255,77,94,.26);box-shadow:inset 0 1px 0 rgba(255,77,94,.24),0 12px 30px rgba(0,0,0,.35)}
.panel h3{font-size:19px;font-weight:600;color:var(--t-hi);line-height:1.45;margin:12px 0 0}
.panel ul{display:grid;gap:12px;margin-top:16px}
.panel li{display:flex;gap:10px;font-size:14.5px;line-height:1.75;color:var(--t-mid)}
.mark{flex:0 0 auto;width:18px;height:18px;border-radius:50%;display:grid;place-items:center;margin-top:3px;font-size:11px;font-weight:700}
.mark-good{background:rgba(58,224,255,.16);color:#9BE9FF;border:1px solid rgba(58,224,255,.4)}
.mark-bad{background:rgba(255,77,94,.14);color:#FFA8B0;border:1px solid rgba(255,77,94,.4)}
@media (max-width:760px){.compare{grid-template-columns:1fr}}

/* FAQ */
.faq{display:grid;gap:12px}
.faq-item{border-radius:var(--radius);border:1px solid var(--line);background:var(--glass);overflow:hidden;transition:border-color .2s ease,box-shadow .2s ease}
.faq-item.open{border-color:rgba(58,224,255,.34);box-shadow:0 0 0 1px rgba(58,224,255,.16)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:18px 20px;background:none;border:0;text-align:left;color:var(--t-hi);font-size:16px;font-weight:600;line-height:1.55;cursor:pointer}
.faq-q:hover{color:var(--neo)}
.faq-sign{position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:50%;border:1px solid rgba(58,224,255,.35);display:grid;place-items:center;transition:transform .25s ease,background .2s ease}
.faq-sign::before,.faq-sign::after{content:"";position:absolute;background:var(--neo);border-radius:2px}
.faq-sign::before{width:10px;height:2px}
.faq-sign::after{width:2px;height:10px;transition:opacity .2s ease}
.faq-item.open .faq-sign{transform:rotate(180deg);background:rgba(58,224,255,.14)}
.faq-item.open .faq-sign::after{opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .28s ease}
.faq-a p{padding:0 20px 20px;font-size:15px;line-height:1.85;color:var(--t-mid)}

/* CTA band */
.cta-band{position:relative;overflow:hidden;border-radius:20px;padding:40px;border:1px solid rgba(58,224,255,.24);background:linear-gradient(120deg,rgba(58,224,255,.12),rgba(79,124,255,.08)),var(--bg-1);box-shadow:var(--shadow);display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:26px}
.cta-band::before{content:"";position:absolute;inset:0;background-image:radial-gradient(420px 220px at 12% 10%,rgba(58,224,255,.18),transparent 70%),radial-gradient(380px 200px at 88% 90%,rgba(255,77,94,.12),transparent 70%);pointer-events:none}
.cta-copy{position:relative;z-index:1;max-width:60ch}
.cta-copy h2{font-size:clamp(22px,2.4vw,30px);font-weight:700;line-height:1.32;color:var(--t-hi);letter-spacing:-.3px}
.cta-copy p{font-size:14.5px;line-height:1.8;color:var(--t-mid);margin-top:10px}
.cta-actions{position:relative;z-index:1;display:flex;flex-wrap:wrap;align-items:center;gap:14px}
@media (max-width:640px){.cta-band{padding:26px}}

/* Footer */
.site-footer{position:relative;background:var(--bg-0);border-top:1px solid var(--line)}
.site-footer::before{content:"";position:absolute;top:0;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,rgba(58,224,255,.7),transparent);opacity:.65}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.25fr;gap:34px;padding:56px 0 40px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--t-mid);margin-top:16px;max-width:36ch}
.footer-col h4{font-size:15px;font-weight:600;color:var(--t-hi);margin-bottom:14px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--t-mid);transition:color .18s ease}
.footer-col a:hover{color:var(--neo)}
.footer-col p{font-size:13.5px;line-height:1.8;color:var(--t-low)}
.footer-bottom{display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;padding:20px 0 30px;border-top:1px solid var(--line);font-size:13px;color:var(--t-low)}
.footer-bottom .dot{color:var(--t-low);letter-spacing:.5px}
@media (max-width:900px){.footer-grid{grid-template-columns:1fr 1fr;gap:28px;padding:44px 0 32px}}
@media (max-width:560px){.footer-grid{grid-template-columns:1fr}}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .step:hover,.guide-row:hover .guide-thumb img{transform:none}
}