/* roulang page: index */
:root{
  --brand-700:#0F4079;
  --brand-600:#14549B;
  --brand-500:#1E6BC4;
  --brand-100:#E8F0FA;
  --neon-500:#14E0C8;
  --neon-400:#5CF0DE;
  --neon-glow:rgba(20,224,200,.45);
  --ink-900:#0A1526;
  --ink-800:#0E1E33;
  --ink-700:#1E2A3D;
  --text-1:#0A1526;
  --text-2:#46536B;
  --text-3:#7B8899;
  --border:#E3E9F2;
  --border-strong:#D6DEEA;
  --card:#FFFFFF;
  --bg-page:#F6F8FB;
  --bg-alt:#EDF2F9;
  --warm-500:#F0A33A;
  --danger:#D9534F;
  --success:#17A673;
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --shadow-1:0 1px 2px rgba(10,21,38,.04),0 8px 24px -8px rgba(10,21,38,.10);
  --shadow-2:0 16px 36px -12px rgba(18,80,143,.22);
  --shadow-neon:0 0 18px rgba(20,224,200,.45);
  --container:1200px;
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  font-size:16px;line-height:1.85;color:var(--text-1);
  background:var(--bg-page);
  padding-top:64px;
  overflow-x:hidden;
}
h1,h2,h3,h4,p,ul,ol,figure{margin:0;padding:0;}
ul,ol{list-style:none;}
img{max-width:100%;display:block;border-style:none;}
a{color:var(--brand-600);text-decoration:none;transition:color .2s var(--ease),background-color .2s var(--ease),border-color .2s var(--ease);}
a:hover{color:var(--neon-500);}
button,input,textarea,select{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--neon-500);outline-offset:2px;box-shadow:0 0 0 4px rgba(20,224,200,.25);}
.num{font-variant-numeric:tabular-nums;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}
.section{padding:96px 0;}
.section-alt{background:var(--bg-alt);}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;padding-bottom:20px;border-bottom:1px solid var(--border);margin-bottom:36px;}
.section-head h2{font-size:clamp(24px,2.6vw,30px);font-weight:700;line-height:1.3;color:var(--text-1);}
.section-head .sub{font-size:14px;color:var(--text-2);margin-top:8px;max-width:640px;}
.more-link{font-size:14px;font-weight:600;color:var(--brand-600);white-space:nowrap;}
.more-link:hover{color:var(--neon-500);}
.neon-rule{display:block;width:48px;height:3px;border-radius:2px;background:linear-gradient(90deg,var(--neon-500),var(--brand-500));margin-top:18px;}

/* ---------- header ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  background:linear-gradient(180deg,#0A1526 0%,#0E1E33 100%);
  border-bottom:1px solid rgba(20,224,200,.28);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,var(--neon-500),#3B82F6);
  opacity:.75;
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:20px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-wrap:nowrap;color:#fff;}
.brand:hover{color:#fff;}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:50%;
  border:1px solid rgba(20,224,200,.75);
  display:flex;align-items:center;justify-content:center;
  background:rgba(20,224,200,.10);
}
.brand-mark svg{width:18px;height:18px;}
.brand-text{font-size:18px;font-weight:700;letter-spacing:0;white-space:nowrap;color:#fff;}
.nav-menu{display:flex;align-items:center;gap:6px;}
.nav-menu a{
  position:relative;display:block;padding:9px 14px;border-radius:999px;
  font-size:15px;font-weight:500;color:#C7D3E4;
}
.nav-menu a:hover{color:var(--neon-500);background:rgba(20,224,200,.08);}
.nav-menu a.active{color:var(--neon-500);background:rgba(20,224,200,.10);}
.nav-menu a.active::after{
  content:"";position:absolute;left:50%;bottom:1px;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;background:var(--neon-500);
  box-shadow:0 0 12px var(--neon-glow);
}
.nav-right{display:flex;align-items:center;gap:12px;}
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  height:40px;padding:0 20px;border-radius:var(--r-sm);
  background:var(--neon-500);color:#06121F;font-size:14px;font-weight:700;
  transition:all .2s var(--ease);
}
.btn-neon:hover{background:var(--neon-400);color:#06121F;box-shadow:var(--shadow-neon);}
.nav-toggle{
  display:none;width:36px;height:36px;border-radius:var(--r-sm);
  border:1px solid rgba(20,224,200,.65);background:rgba(20,224,200,.06);
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
}
.nav-toggle span{display:block;width:16px;height:2px;background:#fff;border-radius:2px;transition:all .2s var(--ease);}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg);}
.nav-drawer{
  display:none;position:fixed;top:56px;left:0;right:0;bottom:0;z-index:110;
  background:#0A1526;padding:16px 20px 32px;overflow-y:auto;
}
.nav-drawer.open{display:block;}
.nav-drawer a.d-item{
  display:flex;align-items:center;height:48px;padding:0 14px;border-radius:var(--r-sm);
  color:#C7D3E4;font-size:16px;font-weight:500;
}
.nav-drawer a.d-item.active{color:var(--neon-500);background:rgba(20,224,200,.10);box-shadow:inset 3px 0 0 var(--neon-500);}
.nav-drawer .drawer-cta{margin-top:20px;width:100%;height:48px;border-radius:var(--r-sm);background:var(--neon-500);color:#06121F;font-weight:700;display:flex;align-items:center;justify-content:center;}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 26px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;transition:all .2s var(--ease);
}
.btn-primary{background:var(--brand-600);color:#fff;}
.btn-primary:hover{background:var(--neon-500);color:#06121F;box-shadow:var(--shadow-neon);}
.btn-outline{background:transparent;color:var(--brand-600);border:1px solid var(--brand-600);}
.btn-outline:hover{background:var(--brand-100);border-color:var(--brand-600);color:var(--brand-700);}
.btn-block{width:100%;}
.btn-lg{height:48px;}

/* ---------- hero ---------- */
.hero{position:relative;padding:88px 0 96px;background:var(--bg-page);overflow:hidden;}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;opacity:.08;
}
.hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(20,84,155,.06) 1px,transparent 1px),linear-gradient(90deg,rgba(20,84,155,.06) 1px,transparent 1px);
  background-size:40px 40px;
}
.hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;height:26px;padding:0 12px;border-radius:999px;
  background:var(--brand-100);color:var(--brand-700);font-size:12px;font-weight:600;
}
.hero h1{
  font-size:clamp(32px,4.6vw,52px);line-height:1.25;font-weight:700;color:var(--text-1);
  margin:18px 0 16px;
}
.hero .lead{font-size:17px;line-height:1.8;color:var(--text-2);max-width:560px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-chips{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;gap:6px;height:26px;padding:0 12px;border-radius:999px;
  background:#fff;border:1px solid var(--border);color:var(--text-2);font-size:12px;font-weight:600;
}
.chip i{width:6px;height:6px;border-radius:50%;background:var(--neon-500);display:block;}

.entry-card{
  position:relative;background:#fff;border:1px solid rgba(20,224,200,.55);
  border-radius:var(--r-md);box-shadow:var(--shadow-2);padding:14px;
}
.entry-card .img-box{
  position:relative;aspect-ratio:4/3;border-radius:8px;overflow:hidden;
  background:linear-gradient(135deg,#E8F0FA,#EDF2F9);
}
.entry-card .img-box img{width:100%;height:100%;object-fit:cover;}
.entry-badge{
  position:absolute;top:10px;left:10px;height:26px;padding:0 12px;border-radius:6px;
  display:inline-flex;align-items:center;font-size:12px;font-weight:700;
  background:rgba(20,224,200,.88);color:#06121F;
}
.entry-title{font-size:16px;font-weight:700;margin:14px 4px 4px;color:var(--text-1);}
.entry-desc{font-size:13px;color:var(--text-2);margin:0 4px 14px;line-height:1.7;}
.entry-bar{display:grid;grid-template-columns:repeat(3,1fr);gap:8px;border-top:1px solid var(--border);padding-top:12px;}
.entry-bar div{text-align:center;}
.entry-bar b{display:block;font-size:20px;font-weight:700;color:var(--brand-600);}
.entry-bar span{font-size:12px;color:var(--text-3);}

/* ---------- metrics ---------- */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;}
.metric-card{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:26px 24px 22px;box-shadow:var(--shadow-1);overflow:hidden;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.metric-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--brand-500),var(--neon-500));
}
.metric-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(20,84,155,.35);}
.metric-num{font-size:38px;font-weight:700;line-height:1.2;color:var(--text-1);font-variant-numeric:tabular-nums;}
.metric-num small{font-size:14px;font-weight:600;color:var(--text-3);margin-left:6px;}
.metric-label{font-size:14px;color:var(--text-2);margin-top:6px;}
.metric-bar{height:6px;border-radius:999px;background:var(--bg-alt);margin-top:18px;overflow:hidden;}
.metric-bar i{display:block;height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand-500),var(--neon-500));}

/* ---------- bento ---------- */
.bento{display:grid;grid-template-columns:repeat(12,1fr);gap:24px;}
.bento-card{
  position:relative;background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:26px;display:flex;flex-direction:column;
  box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.bento-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(20,84,155,.35);}
.bento-card .idx{
  font-size:14px;font-weight:700;color:var(--text-3);font-variant-numeric:tabular-nums;letter-spacing:.01em;
  transition:color .2s var(--ease);
}
.bento-card:hover .idx{color:var(--neon-500);}
.bento-card h3{font-size:19px;font-weight:600;margin:14px 0 10px;color:var(--text-1);}
.bento-card p{font-size:14.5px;line-height:1.75;color:var(--text-2);}
.bento-card .go{
  margin-top:auto;padding-top:18px;font-size:14px;font-weight:600;color:var(--brand-600);
  display:inline-flex;align-items:center;gap:6px;
}
.bento-card .go span{transition:transform .2s var(--ease);}
.bento-card:hover .go{color:var(--brand-700);}
.bento-card:hover .go span{transform:translateX(4px);}
.b-6{grid-column:span 6;}
.b-3{grid-column:span 3;}
.b-4{grid-column:span 4;}
.b-5{grid-column:span 5;}
.b-7{grid-column:span 7;}
.bento-card.tall{min-height:260px;}
.bento-card .mini-img{
  margin-top:16px;aspect-ratio:16/9;border-radius:10px;overflow:hidden;
  background:linear-gradient(135deg,#E8F0FA,#EDF2F9);border:1px solid var(--border);
}
.bento-card .mini-img img{width:100%;height:100%;object-fit:cover;}

/* ---------- compare ---------- */
.compare{display:grid;grid-template-columns:1fr 1px 1fr;gap:0;align-items:stretch;}
.compare-divider{background:var(--border);position:relative;}
.compare-divider::after{
  content:"";position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);
  width:3px;height:48px;border-radius:2px;background:var(--neon-500);box-shadow:0 0 12px var(--neon-glow);
}
.compare-col{padding:0 36px;}
.compare-col h3{font-size:20px;font-weight:700;margin-bottom:18px;display:flex;align-items:center;gap:10px;}
.compare-col h3 em{font-style:normal;font-size:13px;font-weight:600;color:var(--text-3);}
.compare-row{
  display:flex;align-items:center;gap:12px;height:44px;font-size:15px;color:var(--text-2);
  border-bottom:1px solid var(--border);
}
.compare-row:last-child{border-bottom:none;}
.compare-row i{width:8px;height:8px;border-radius:50%;background:var(--border-strong);flex:0 0 8px;}
.compare-col.reco .compare-row{color:var(--text-1);}
.compare-col.reco .compare-row i{background:var(--neon-500);box-shadow:0 0 8px var(--neon-glow);}
.compare-row .tag{margin-left:auto;height:24px;padding:0 10px;border-radius:999px;background:rgba(240,163,58,.14);color:#A5651A;font-size:12px;font-weight:600;display:inline-flex;align-items:center;}
.compare-note{margin-top:28px;font-size:14px;color:var(--text-2);padding-top:18px;border-top:1px dashed var(--border-strong);}

/* ---------- posts ---------- */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;}
.post-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);overflow:hidden;
  display:flex;flex-direction:column;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.post-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(20,84,155,.35);}
.post-card .thumb{
  position:relative;aspect-ratio:16/9;overflow:hidden;background:linear-gradient(135deg,#E8F0FA,#EDF2F9);
}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.post-card:hover .thumb img{transform:scale(1.03);}
.post-card .thumb::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:40px;
  background:linear-gradient(to top,rgba(10,21,38,.45),transparent);
}
.post-cat{
  position:absolute;top:10px;left:10px;z-index:2;height:24px;padding:0 10px;border-radius:6px;
  display:inline-flex;align-items:center;font-size:12px;font-weight:700;
  background:rgba(20,224,200,.88);color:#06121F;
}
.post-body{padding:18px 20px 20px;display:flex;flex-direction:column;flex:1;}
.post-body h3{font-size:17px;font-weight:600;line-height:1.55;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:color .2s var(--ease);}
.post-card:hover .post-body h3{color:var(--brand-600);}
.post-body p{font-size:14px;color:var(--text-2);margin-top:10px;line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.post-meta{display:flex;align-items:center;gap:8px;margin-top:auto;padding-top:16px;font-size:13px;color:var(--text-3);}
.post-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--border-strong);}
.post-meta .arrow{margin-left:auto;color:var(--brand-600);font-weight:700;transition:transform .2s var(--ease);}
.post-card:hover .post-meta .arrow{transform:translateX(4px);}
.post-feature{
  grid-column:span 2;grid-row:span 2;flex-direction:row;
}
.post-feature .thumb{aspect-ratio:16/9;width:46%;flex:0 0 46%;height:100%;}
.post-feature .post-body{padding:24px;justify-content:center;}
.post-feature .post-body h3{font-size:20px;-webkit-line-clamp:3;}
.post-feature .post-body p{-webkit-line-clamp:3;font-size:14.5px;}
.empty-state{
  border:1px dashed var(--border-strong);background:var(--bg-page);border-radius:var(--r-lg);
  min-height:200px;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:12px;text-align:center;padding:32px;
}
.empty-state svg{width:34px;height:34px;stroke:var(--text-3);fill:none;stroke-width:1.6;}
.empty-state p{font-size:15px;color:var(--text-2);}

/* ---------- faq ---------- */
.faq-layout{display:grid;grid-template-columns:7fr 5fr;gap:48px;align-items:start;}
.faq-list{display:flex;flex-direction:column;gap:12px;}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--r-md);box-shadow:var(--shadow-1);overflow:hidden;}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:12px 22px;font-size:16.5px;font-weight:600;color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  flex:0 0 28px;width:28px;height:28px;border-radius:50%;border:1px solid var(--brand-600);
  color:var(--brand-600);display:flex;align-items:center;justify-content:center;font-size:16px;font-weight:600;
  transition:all .2s var(--ease);
}
.faq-item[open] .faq-icon{background:var(--neon-500);border-color:var(--neon-500);color:#06121F;transform:rotate(45deg);}
.faq-a{padding:20px 24px;background:var(--bg-page);font-size:15px;line-height:1.85;color:var(--text-2);border-top:1px solid var(--border);}
.faq-aside{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow-1);}
.faq-aside h3{font-size:19px;font-weight:700;margin-bottom:14px;}
.faq-aside p{font-size:14.5px;color:var(--text-2);line-height:1.8;}
.faq-aside ul{margin:18px 0 22px;display:flex;flex-direction:column;gap:10px;}
.faq-aside li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2);}
.faq-aside li i{flex:0 0 6px;width:6px;height:6px;border-radius:50%;background:var(--neon-500);margin-top:9px;}

/* ---------- form ---------- */
.form-layout{display:grid;grid-template-columns:5fr 7fr;gap:48px;align-items:start;}
.form-copy h2{font-size:clamp(24px,2.6vw,30px);font-weight:700;line-height:1.35;}
.form-copy ul{margin-top:22px;display:flex;flex-direction:column;gap:14px;}
.form-copy li{display:flex;gap:10px;font-size:15px;color:var(--text-2);}
.form-copy li i{flex:0 0 6px;width:6px;height:6px;border-radius:50%;background:var(--neon-500);margin-top:10px;}
.form-copy .hint{font-size:14px;color:var(--text-3);margin-top:22px;}
.form-card{
  position:relative;background:#fff;border-radius:20px;padding:32px;box-shadow:var(--shadow-2);
  border:1px solid var(--border);overflow:hidden;
}
.form-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,var(--brand-500),var(--neon-500));
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:8px;}
.field input[type="text"],.field input[type="tel"],.field textarea{
  width:100%;border:1px solid var(--border-strong);border-radius:var(--r-sm);background:#fff;
  padding:0 14px;height:48px;font-size:15px;color:var(--text-1);transition:all .2s var(--ease);
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;line-height:1.75;resize:vertical;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand-600);box-shadow:0 0 0 4px rgba(20,84,155,.12);
}
.radio-row{display:flex;flex-wrap:wrap;gap:10px;}
.radio-row label{
  display:inline-flex;align-items:center;gap:8px;height:38px;padding:0 16px;border-radius:999px;
  border:1px solid var(--border-strong);background:#fff;font-size:14px;color:var(--text-2);cursor:pointer;
  transition:all .2s var(--ease);margin:0;
}
.radio-row input{position:absolute;opacity:0;width:0;height:0;}
.radio-row label:hover{border-color:var(--brand-600);color:var(--brand-600);}
.radio-row input:checked + span{color:var(--brand-700);}
.radio-row label:has(input:checked){border-color:var(--brand-600);background:var(--brand-100);color:var(--brand-700);font-weight:600;}
.check-row{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-2);margin:4px 0 22px;}
.check-row input{width:16px;height:16px;margin-top:5px;accent-color:var(--brand-600);}
.form-msg{font-size:13px;color:var(--text-3);margin-top:14px;}

/* ---------- trust bar ---------- */
.trust-bar{background:var(--bg-alt);padding:28px 0;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.trust-item{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-2);font-weight:600;}
.trust-item i{
  width:28px;height:28px;border-radius:8px;background:#fff;border:1px solid var(--border);
  display:flex;align-items:center;justify-content:center;flex:0 0 28px;
}
.trust-item i::after{content:"";width:8px;height:8px;border-radius:50%;background:var(--brand-500);}

/* ---------- cta band ---------- */
.cta-band{
  background:var(--brand-100);border-radius:var(--r-md);padding:32px;
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
}
.cta-band h3{font-size:20px;font-weight:700;color:var(--brand-700);}
.cta-band p{font-size:14.5px;color:var(--text-2);margin-top:8px;}

/* ---------- footer ---------- */
.site-footer{background:#0A1526;color:#C7D3E4;position:relative;padding:68px 0 0;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,var(--neon-500),#3B82F6);opacity:.75;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:32px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:28px;height:28px;flex:0 0 28px;}
.footer-brand b{font-size:16px;color:#fff;font-weight:700;}
.footer-about{font-size:14px;line-height:1.8;color:#93A4BC;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a{font-size:14px;color:#C7D3E4;}
.footer-col a:hover{color:var(--neon-500);text-decoration:underline;text-underline-offset:2px;}
.footer-col p{font-size:14px;color:#93A4BC;line-height:1.85;}
.footer-bottom{
  margin-top:48px;border-top:1px solid rgba(199,211,228,.14);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13px;color:#8296AF;
}
.footer-bottom a{color:#8296AF;}
.footer-bottom a:hover{color:var(--neon-500);}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:40px;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .b-6,.b-3,.b-4,.b-5,.b-7{grid-column:span 12;}
  .post-grid{grid-template-columns:repeat(2,1fr);}
  .post-feature{grid-column:span 2;grid-row:auto;flex-direction:column;}
  .post-feature .thumb{width:100%;flex:0 0 auto;aspect-ratio:16/9;}
  .faq-layout,.form-layout{grid-template-columns:1fr;gap:36px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .compare{grid-template-columns:1fr;gap:0;}
  .compare-divider{height:1px;background:var(--border-strong);}
  .compare-divider::after{width:48px;height:3px;top:50%;}
  .compare-col{padding:28px 0;}
  .section{padding:72px 0;}
  .nav-menu{display:none;}
  .nav-toggle{display:flex;}
  .nav-wrap{height:56px;}
  body{padding-top:56px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .section{padding:56px 0;}
  .hero{padding:56px 0 64px;}
  .metric-grid{grid-template-columns:repeat(2,1fr);gap:16px;}
  .post-grid{grid-template-columns:1fr;}
  .post-feature{grid-column:span 1;}
  .trust-grid{grid-template-columns:1fr 1fr;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .btn{width:100%;max-width:320px;}
  .hero-actions{flex-direction:column;align-items:flex-start;}
  .cta-band{padding:24px;}
  .brand-text{font-size:16px;}
  .field input,.field textarea{border-radius:10px;}
  .form-card{padding:22px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-duration:.01ms !important;}
  .bento-card:hover,.metric-card:hover,.post-card:hover{transform:none;}
}

/* roulang page: article */
:root{
  --brand-700:#0F4079;
  --brand-600:#14549B;
  --brand-500:#1E6BC4;
  --brand-100:#E8F0FA;
  --neon-500:#14E0C8;
  --neon-400:#5CF0DE;
  --neon-600:#0FA99A;
  --neon-glow:rgba(20,224,200,.55);
  --ink-900:#0A1526;
  --ink-800:#0E1E33;
  --ink-700:#1E2A3D;
  --text-1:#0A1526;
  --text-2:#46536B;
  --text-3:#7B8899;
  --border:#E3E9F2;
  --border-strong:#D6DEEA;
  --card:#FFFFFF;
  --bg-page:#F6F8FB;
  --bg-alt:#EDF2F9;
  --warm-500:#F0A33A;
  --danger:#D9534F;
  --success:#17A673;
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
  --shadow-1:0 1px 2px rgba(10,21,38,.04), 0 8px 24px -8px rgba(10,21,38,.10);
  --shadow-2:0 16px 36px -12px rgba(18,80,143,.22);
  --shadow-neon:0 0 18px rgba(20,224,200,.45);
  --ease:all .2s cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  background:var(--bg-page);
  color:var(--text-1);
  font-size:16px;
  line-height:1.85;
}
a{color:inherit;text-decoration:none}
img{max-width:100%;display:block}
button,input,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--neon-500);outline-offset:2px;box-shadow:0 0 0 4px rgba(20,224,200,.25);border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:var(--bg-page)}
::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:999px}
::-webkit-scrollbar-thumb:hover{background:var(--brand-500)}

/* ---------- header / nav ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  height:64px;
  background:linear-gradient(90deg,#0A1526 0%,#0E1E33 100%);
  box-shadow:0 6px 24px -12px rgba(10,21,38,.55);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(20,224,200,.75),rgba(59,130,246,.75));
}
.nav-wrap{display:flex;align-items:center;height:100%;gap:20px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:10px;
  display:grid;place-items:center;
  border:1px solid rgba(20,224,200,.45);
  background:rgba(20,224,200,.08);
}
.brand-mark svg{width:20px;height:20px;display:block}
.brand-text{color:#FFFFFF;font-weight:700;font-size:17px;white-space:nowrap;line-height:1}
.nav-menu{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;
  color:#C7D3E4;font-size:15px;line-height:1;
  padding:10px 14px;border-radius:999px;
  transition:var(--ease);
}
.nav-menu a:hover{color:#FFFFFF;background:rgba(255,255,255,.07)}
.nav-menu a.active{
  color:var(--neon-500);
  background:rgba(20,224,200,.10);
  text-shadow:0 0 12px var(--neon-glow);
}
.nav-menu a.active::after{
  content:"";position:absolute;left:50%;bottom:-9px;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;
  background:var(--neon-500);box-shadow:0 0 12px var(--neon-glow);
}
.nav-right{display:flex;align-items:center;gap:12px;margin-left:8px}
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;
  height:40px;padding:0 20px;border-radius:var(--radius-sm);
  background:var(--neon-500);color:#06121F;
  font-size:15px;font-weight:700;white-space:nowrap;
  transition:var(--ease);
}
.btn-neon:hover{background:var(--neon-400);box-shadow:var(--shadow-neon);transform:translateY(-1px)}
.nav-toggle{
  display:none;width:36px;height:36px;flex:0 0 36px;
  align-items:center;justify-content:center;flex-direction:column;gap:4px;
  background:transparent;border:1px solid rgba(20,224,200,.55);border-radius:10px;
  cursor:pointer;padding:0;transition:var(--ease);
}
.nav-toggle span{display:block;width:16px;height:2px;background:#FFFFFF;border-radius:2px;transition:var(--ease)}
.nav-toggle:hover{background:rgba(20,224,200,.12)}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}
.nav-cta-mobile{display:none}

/* ---------- main / hero ---------- */
.page-main{padding-top:64px}
.article-hero{
  position:relative;overflow:hidden;
  background:#FFFFFF;
  border-bottom:1px solid var(--border);
  padding:22px 0 40px;
}
.article-hero::before{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.06;
}
.article-hero .container{position:relative;z-index:1}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);
  padding:16px 0 22px;
}
.breadcrumb a{color:var(--text-2);transition:var(--ease)}
.breadcrumb a:hover{color:var(--brand-600)}
.crumb-sep{color:var(--text-3)}
.crumb-current{color:var(--text-1);font-weight:600}

.article-title{
  font-size:clamp(28px,3.4vw,36px);
  font-weight:700;line-height:1.35;color:var(--text-1);
  max-width:820px;
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:18px;font-size:13px;color:var(--text-3);
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:var(--border-strong)}
.article-meta a{color:var(--brand-600);font-weight:600;transition:var(--ease)}
.article-meta a:hover{color:var(--neon-600)}
.meta-cat{
  display:inline-flex;align-items:center;height:24px;padding:0 12px;
  border-radius:999px;background:var(--brand-100);color:var(--brand-700);
  font-size:12px;font-weight:600;
}
.meta-num{font-variant-numeric:tabular-nums}
.neon-rule{display:block;width:48px;height:3px;border-radius:2px;background:var(--neon-500);margin-top:22px}

/* ---------- article layout ---------- */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;
  gap:48px;align-items:start;
  padding:44px 0 72px;
}
.article-main{min-width:0;max-width:820px}
.article-figure-top{
  margin:0 0 32px;border-radius:var(--radius-md);overflow:hidden;
  border:1px solid var(--border);background:linear-gradient(135deg,#E8F0FA,#EDF2F9);
}
.article-figure-top img{width:100%;aspect-ratio:16/9;object-fit:cover}

.article-body{font-size:17px;line-height:1.95;color:var(--ink-700);text-align:left}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;font-size:24px;font-weight:700;line-height:1.4;color:var(--text-1);
  margin:40px 0 16px;padding-left:16px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.24em;bottom:.24em;width:4px;
  border-radius:2px;background:var(--neon-500);
}
.article-body h3{font-size:19px;font-weight:600;color:var(--text-1);margin:28px 0 12px;line-height:1.5}
.article-body a{color:var(--brand-600);text-decoration:underline;text-underline-offset:3px;transition:var(--ease)}
.article-body a:hover{color:var(--neon-600)}
.article-body strong{color:var(--text-1)}
.article-body blockquote{
  margin:24px 0;padding:20px 22px;
  background:var(--brand-100);border-left:4px solid var(--brand-600);
  border-radius:0 12px 12px 0;color:var(--ink-700);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body ul{margin:0 0 1.2em}
.article-body ul li{position:relative;padding-left:22px;margin-bottom:8px;line-height:1.9}
.article-body ul li::before{
  content:"";position:absolute;left:3px;top:.78em;
  width:7px;height:7px;border-radius:2px;background:var(--brand-500);
}
.article-body ol{counter-reset:oli;margin:0 0 1.2em}
.article-body ol li{counter-increment:oli;position:relative;padding-left:32px;margin-bottom:10px;line-height:1.9}
.article-body ol li::before{
  content:counter(oli);position:absolute;left:0;top:.45em;
  width:20px;height:20px;border-radius:6px;background:var(--brand-100);
  color:var(--brand-700);font-size:12px;font-weight:700;
  display:grid;place-items:center;line-height:1;
}
.article-body img{width:100%;height:auto;border-radius:12px;margin:20px 0}
.article-body figure{margin:20px 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body table{
  width:100%;border-collapse:separate;border-spacing:0;
  border:1px solid var(--border);border-radius:12px;overflow:hidden;
  margin:20px 0;font-size:15px;
}
.article-body thead th{background:var(--bg-alt);font-weight:600;color:var(--text-1)}
.article-body th,.article-body td{padding:12px 16px;border-bottom:1px solid var(--border);text-align:left}
.article-body tbody tr:last-child td{border-bottom:0}
.article-body hr{border:0;border-top:1px solid var(--border);margin:32px 0}
.article-body code{
  background:var(--bg-alt);border:1px solid var(--border);border-radius:6px;
  padding:2px 6px;font-size:14px;
}

.article-empty{
  border:1px dashed var(--border-strong);background:var(--bg-page);
  border-radius:var(--radius-lg);padding:56px 28px;text-align:center;
}
.article-empty .ico{
  width:56px;height:56px;margin:0 auto 16px;border-radius:14px;
  display:grid;place-items:center;background:var(--brand-100);color:var(--brand-600);
}
.article-empty h2{font-size:20px;font-weight:700;color:var(--text-1)}
.article-empty p{margin-top:8px;font-size:15px;color:var(--text-2)}
.article-empty .btn-primary{margin-top:22px}

/* ---------- buttons ---------- */
.btn-primary,.btn-outline,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 24px;border-radius:var(--radius-sm);
  font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:var(--ease);
}
.btn-primary{background:var(--brand-600);color:#FFFFFF}
.btn-primary:hover{background:var(--neon-500);color:#06121F;box-shadow:var(--shadow-neon);transform:translateY(-1px)}
.btn-outline{background:transparent;border-color:var(--brand-600);color:var(--brand-600)}
.btn-outline:hover{background:var(--brand-100);border-color:var(--brand-600);transform:translateY(-1px)}
.btn-ghost{background:#FFFFFF;border-color:var(--border-strong);color:var(--text-2);height:42px;padding:0 18px;font-weight:600}
.btn-ghost:hover{border-color:var(--brand-500);color:var(--brand-600)}

/* ---------- tags / prev-next ---------- */
.article-tags{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px;
  margin-top:40px;padding-top:28px;border-top:1px solid var(--border);
}
.article-tags .tag-label{font-size:13px;color:var(--text-3)}
.tag-pill{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:999px;background:var(--brand-100);color:var(--brand-700);
  font-size:12.5px;font-weight:600;transition:var(--ease);
}
.tag-pill:hover{background:rgba(20,224,200,.16);color:#0A1526}

.article-nav{display:grid;grid-template-columns:1fr 1fr;gap:20px;margin-top:32px}
.nav-card{
  display:block;padding:20px 22px;background:#FFFFFF;
  border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);transition:var(--ease);
}
.nav-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(20,84,155,.35)}
.nav-card .nc-direction{font-size:12.5px;color:var(--text-3);display:flex;align-items:center;gap:6px}
.nav-card .nc-title{margin-top:8px;font-size:16px;font-weight:600;color:var(--text-1);line-height:1.6}
.nav-card.next{text-align:right}
.nav-card.next .nc-direction{justify-content:flex-end}

/* ---------- sidebar ---------- */
.article-side{position:sticky;top:88px;display:flex;flex-direction:column;gap:20px}
.side-card{
  background:#FFFFFF;border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);padding:20px;
}
.side-title{
  font-size:15px;font-weight:700;color:var(--text-1);
  padding-bottom:12px;margin-bottom:12px;border-bottom:1px solid var(--border);
}
.toc{display:flex;flex-direction:column;gap:2px;max-height:320px;overflow:auto}
.toc-link{
  display:block;font-size:14px;color:var(--text-2);line-height:1.6;
  padding:7px 10px;border-radius:8px;border-left:2px solid transparent;
  transition:var(--ease);
}
.toc-link:hover{background:var(--brand-100);color:var(--brand-700);border-left-color:var(--brand-500)}
.toc-link.toc-h3{padding-left:22px;font-size:13px;color:var(--text-3)}
.entry-list{display:flex;flex-direction:column;gap:4px}
.entry-list a{
  display:flex;align-items:center;gap:10px;
  padding:9px 10px;border-radius:8px;font-size:14px;color:var(--text-2);
  transition:var(--ease);
}
.entry-list a:hover{background:var(--bg-alt);color:var(--brand-700)}
.entry-list .n{
  font-variant-numeric:tabular-nums;font-size:12px;font-weight:700;
  color:var(--text-3);width:20px;flex:0 0 20px;
}
.entry-list a:hover .n{color:var(--neon-600)}
.side-cta{margin-top:16px;display:flex;width:100%}
.side-note{font-size:13px;color:var(--text-3);line-height:1.75;margin-top:12px}

/* ---------- related ---------- */
.related-section{padding:0 0 72px}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:16px;
  padding-bottom:16px;border-bottom:1px solid var(--border);margin-bottom:32px;
}
.section-head h2{font-size:24px;font-weight:700;color:var(--text-1)}
.section-head .more{font-size:14px;color:var(--brand-600);font-weight:600;transition:var(--ease)}
.section-head .more:hover{color:var(--neon-600)}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.list-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:#FFFFFF;border:1px solid var(--border);border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);transition:var(--ease);
}
.list-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(20,84,155,.35)}
.list-card .thumb{position:relative;aspect-ratio:16/9;background:linear-gradient(135deg,#E8F0FA,#EDF2F9);overflow:hidden}
.list-card .thumb img{width:100%;height:100%;object-fit:cover}
.list-card .thumb::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:40px;
  background:linear-gradient(180deg,rgba(10,21,38,0),rgba(10,21,38,.55));
}
.list-card .badge{
  position:absolute;top:12px;left:12px;z-index:2;
  display:inline-flex;align-items:center;height:24px;padding:0 10px;
  border-radius:6px;background:rgba(20,224,200,.85);color:#06121F;
  font-size:12px;font-weight:700;
}
.list-card .body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.list-card h3{font-size:17px;font-weight:600;line-height:1.6;color:var(--text-1);transition:var(--ease)}
.list-card:hover h3{color:var(--brand-600)}
.list-card .desc{font-size:14px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.list-card .meta{
  margin-top:auto;display:flex;align-items:center;gap:8px;
  font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;
}
.list-card .meta .arrow{margin-left:auto;color:var(--brand-600);transition:var(--ease)}
.list-card:hover .meta .arrow{transform:translateX(4px);color:var(--neon-600)}

.back-row{display:flex;justify-content:center;padding-bottom:88px}

/* ---------- footer ---------- */
.site-footer{
  position:relative;background:#0A1526;color:#C7D3E4;
  padding:64px 0 0;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(20,224,200,.75),rgba(59,130,246,.75));
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:48px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand b{color:#FFFFFF;font-size:16px;font-weight:700}
.footer-brand .brand-mark{width:28px;height:28px;flex:0 0 28px;border-radius:9px}
.footer-brand .brand-mark svg{width:17px;height:17px}
.footer-about{font-size:14px;line-height:1.85;color:#96A6BD;max-width:300px}
.footer-col h4{font-size:15px;font-weight:700;color:#FFFFFF;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col p{font-size:14px;line-height:1.85;color:#96A6BD}
.footer-col a{font-size:14px;color:#C7D3E4;transition:var(--ease)}
.footer-col a:hover{color:var(--neon-500);text-decoration:underline;text-underline-offset:2px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  border-top:1px solid rgba(255,255,255,.08);padding:20px 0 28px;
  font-size:13px;color:#7B8899;
}
.footer-bottom a{color:#7B8899;transition:var(--ease)}
.footer-bottom a:hover{color:var(--neon-500)}

/* ---------- responsive ---------- */
@media (max-width:1023px){
  .nav-menu{
    position:fixed;top:64px;left:0;right:0;z-index:190;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#0A1526;padding:12px 16px 20px;
    border-bottom:1px solid rgba(20,224,200,.25);
    box-shadow:0 24px 40px -20px rgba(10,21,38,.7);
    transform:translateY(-14px);opacity:0;pointer-events:none;
    transition:var(--ease);
    max-height:calc(100vh - 64px);overflow:auto;
  }
  .nav-menu.open{transform:translateY(0);opacity:1;pointer-events:auto}
  .nav-menu a{padding:13px 14px;border-radius:10px;font-size:16px;border-left:3px solid transparent}
  .nav-menu a.active::after{display:none}
  .nav-menu a.active{border-left-color:var(--neon-500);background:rgba(20,224,200,.10)}
  .nav-cta-desktop{display:none}
  .nav-cta-mobile{
    display:inline-flex;justify-content:center;margin-top:14px;height:46px;
    border-left:0 !important;color:#06121F !important;
  }
  .nav-toggle{display:inline-flex}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:36px;padding:32px 0 56px}
  .article-side{position:static}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  .article-title{font-size:26px}
  .article-body{font-size:16px}
  .article-body h2{font-size:21px;margin-top:32px}
  .article-body h3{font-size:18px}
  .article-nav{grid-template-columns:1fr}
  .nav-card.next{text-align:left}
  .nav-card.next .nc-direction{justify-content:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}
@media (max-width:640px){
  .site-header{height:56px}
  .page-main{padding-top:56px}
  .nav-menu{top:56px;max-height:calc(100vh - 56px)}
  .brand-text{font-size:15px}
  .article-hero{padding:8px 0 30px}
  .breadcrumb{padding:16px 0 16px}
  .btn-primary,.btn-outline{width:100%;max-width:320px}
  .btn-neon{padding:0 14px;font-size:14px}
  .card-grid{grid-template-columns:1fr}
  .article-layout{padding:26px 0 48px}
  .section-head{flex-direction:column;align-items:flex-start;gap:8px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition-property:color,background-color,border-color !important;transform:none !important}
}

/* roulang page: category1 */
:root{
  --brand-700:#0F4079;
  --brand-600:#14549B;
  --brand-500:#1E6BC4;
  --brand-100:#E8F0FA;
  --neon-500:#14E0C8;
  --neon-400:#5CF0DE;
  --neon-glow:rgba(20,224,200,.55);
  --ink-900:#0A1526;
  --ink-800:#0E1E33;
  --ink-700:#1E2A3D;
  --text-1:#0A1526;
  --text-2:#46536B;
  --text-3:#7B8899;
  --border:#E3E9F2;
  --border-strong:#D6DEEA;
  --card:#FFFFFF;
  --bg-page:#F6F8FB;
  --bg-alt:#EDF2F9;
  --warm-500:#F0A33A;
  --danger:#D9534F;
  --success:#17A673;
  --shadow-1:0 1px 2px rgba(10,21,38,.04),0 8px 24px -8px rgba(10,21,38,.10);
  --shadow-2:0 16px 36px -12px rgba(18,80,143,.22);
  --shadow-neon:0 0 18px rgba(20,224,200,.45);
  --radius-lg:16px;
  --radius-md:12px;
  --radius-sm:10px;
}

*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--bg-page);
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0;list-style:none}
:focus-visible{outline:2px solid var(--neon-500);outline-offset:2px;box-shadow:0 0 0 4px rgba(20,224,200,.25)}
::selection{background:rgba(20,224,200,.30)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
@media (max-width:1023px){.container{padding:0 20px}}
@media (max-width:639px){.container{padding:0 16px}}

/* ============ 顶栏 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:linear-gradient(90deg,var(--ink-900) 0%,var(--ink-800) 100%);
  box-shadow:0 10px 30px -18px rgba(10,21,38,.9);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,rgba(20,224,200,0),rgba(20,224,200,.75),rgba(59,130,246,.75),rgba(20,224,200,0));
}
.site-header .nav-wrap{
  display:flex;align-items:center;justify-content:space-between;gap:20px;
  min-height:64px;
}
.brand{display:flex;align-items:center;gap:10px;white-space:nowrap;flex:0 0 auto}
.brand-mark{
  width:32px;height:32px;border-radius:10px;flex:0 0 32px;
  display:flex;align-items:center;justify-content:center;
  border:1px solid rgba(20,224,200,.45);
  background:rgba(20,224,200,.08);
}
.brand-mark svg{width:19px;height:19px;display:block}
.brand-text{font-size:18px;font-weight:700;color:#fff;letter-spacing:0}
.nav-menu{display:flex;align-items:center;gap:4px;flex:1 1 auto;justify-content:center}
.nav-menu a{
  position:relative;
  display:inline-block;
  padding:8px 14px;
  font-size:15px;
  color:#C7D3E4;
  border-radius:999px;
  transition:all .2s cubic-bezier(.2,.7,.3,1);
}
.nav-menu a:hover{color:var(--neon-500);background:rgba(20,224,200,.08)}
.nav-menu a.active{color:var(--neon-500);background:rgba(20,224,200,.10)}
.nav-menu a.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;
  background:var(--neon-500);
  box-shadow:0 0 12px rgba(20,224,200,.9);
}
.nav-right{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;
  height:42px;padding:0 20px;
  font-size:15px;font-weight:700;
  color:#06121F;background:var(--neon-500);
  border:1px solid var(--neon-500);border-radius:10px;
  transition:all .2s cubic-bezier(.2,.7,.3,1);
}
.btn-neon:hover{box-shadow:var(--shadow-neon);transform:translateY(-1px)}
.nav-toggle{
  display:none;width:36px;height:36px;padding:0;
  align-items:center;justify-content:center;flex-direction:column;
  background:transparent;border:1px solid rgba(20,224,200,.55);border-radius:10px;
  cursor:pointer;transition:all .2s cubic-bezier(.2,.7,.3,1);
}
.nav-toggle span{display:block;width:16px;height:2px;background:#fff;border-radius:2px;margin:2px 0;transition:all .2s cubic-bezier(.2,.7,.3,1)}
.nav-toggle.open span:nth-child(1){transform:translateY(6px) rotate(45deg)}
.nav-toggle.open span:nth-child(2){opacity:0}
.nav-toggle.open span:nth-child(3){transform:translateY(-6px) rotate(-45deg)}

.nav-drawer{
  position:fixed;left:0;right:0;top:56px;z-index:55;
  background:var(--ink-900);
  border-bottom:1px solid rgba(20,224,200,.35);
  padding:12px 16px 20px;
  opacity:0;visibility:hidden;transform:translateY(-8px);
  transition:all .2s cubic-bezier(.2,.7,.3,1);
}
.nav-drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
.nav-drawer a.drawer-link{
  display:flex;align-items:center;height:48px;padding:0 14px;
  font-size:16px;color:#C7D3E4;border-radius:10px;
  transition:all .2s cubic-bezier(.2,.7,.3,1);
}
.nav-drawer a.drawer-link.active{
  color:var(--neon-500);background:rgba(20,224,200,.10);
  box-shadow:inset 3px 0 0 var(--neon-500);
}
.nav-drawer .drawer-cta{
  display:flex;align-items:center;justify-content:center;height:46px;margin-top:14px;
  font-weight:700;color:#06121F;background:var(--neon-500);border-radius:10px;
}
@media (max-width:1023px){
  .nav-menu{display:none}
  .nav-right .btn-neon{display:none}
  .nav-toggle{display:flex}
  .site-header .nav-wrap{min-height:56px}
  .brand-text{font-size:17px}
}

/* ============ 面包屑 ============ */
.crumb-bar{padding:16px 0 0}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-2)}
.crumb a{color:var(--text-2);transition:color .2s cubic-bezier(.2,.7,.3,1)}
.crumb a:hover{color:var(--brand-600)}
.crumb .sep{color:var(--border-strong)}
.crumb .current{color:var(--ink-900);font-weight:600}

/* ============ 分类 Hero ============ */
.cat-hero{
  position:relative;overflow:hidden;
  margin-top:16px;
  padding:56px 0 60px;
  background:#fff;
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  opacity:.10;
}
.cat-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(246,248,251,.55) 0%,rgba(246,248,251,.94) 70%,#fff 100%);
}
.cat-hero > .container{position:relative;z-index:1}
.badge-neon{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  font-size:12.5px;font-weight:600;color:var(--ink-900);
  background:rgba(20,224,200,.16);border:1px solid rgba(20,224,200,.5);
  border-radius:999px;
}
.cat-hero h1{
  margin-top:18px;
  font-size:clamp(30px,3.6vw,40px);
  line-height:1.3;font-weight:700;letter-spacing:0;
  color:var(--text-1);
  max-width:760px;
}
.hero-sub{
  margin-top:16px;max-width:680px;
  font-size:17px;line-height:1.8;color:var(--text-2);
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:22px}
.tag-plain{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  font-size:12.5px;font-weight:600;color:var(--brand-600);
  background:var(--brand-100);border-radius:999px;border:1px solid rgba(20,84,155,.14);
}
.hero-stat-card{
  background:#fff;border:1px solid rgba(20,224,200,.42);
  border-radius:var(--radius-lg);padding:22px 24px;
  box-shadow:var(--shadow-1);
}
.hero-stat-card .stat-title{
  font-size:13px;font-weight:600;color:var(--text-3);
  padding-bottom:14px;border-bottom:1px solid var(--border);
}
.stat-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:18px}
.stat-num{font-size:34px;font-weight:700;line-height:1.1;color:var(--ink-900);font-variant-numeric:tabular-nums}
.stat-unit{font-size:14px;font-weight:600;color:var(--text-3);margin-left:4px}
.stat-label{margin-top:6px;font-size:13.5px;color:var(--text-2);line-height:1.6}

/* ============ 板块通用 ============ */
.section{padding:88px 0}
.section.tight{padding:72px 0}
.section.alt{background:var(--bg-alt)}
.section-title{font-size:clamp(24px,2.6vw,30px);font-weight:700;line-height:1.35;color:var(--text-1)}
.section-desc{margin-top:12px;font-size:16px;color:var(--text-2);max-width:720px}
.rule{width:48px;height:3px;border-radius:2px;background:var(--neon-500);box-shadow:var(--shadow-neon);margin:18px 0 0}
@media (max-width:1023px){.section{padding:72px 0}.section.tight{padding:60px 0}}
@media (max-width:639px){.section{padding:56px 0}.section.tight{padding:48px 0}}

/* ============ 正文文档区 ============ */
.doc-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:32px;box-shadow:var(--shadow-1);
}
@media (max-width:639px){.doc-card{padding:22px 18px}}
.doc-block + .doc-block{margin-top:42px;padding-top:38px;border-top:1px solid var(--border)}
.doc-block h2{
  font-size:23px;font-weight:700;line-height:1.4;color:var(--text-1);
  padding-left:14px;border-left:4px solid var(--neon-500);
}
.doc-block h3{margin-top:24px;font-size:18px;font-weight:600;color:var(--ink-900)}
.doc-block p{margin-top:16px;font-size:16.5px;line-height:1.95;color:var(--ink-700)}
.dot-list{margin-top:18px}
.dot-list li{
  position:relative;padding-left:20px;margin-bottom:12px;
  font-size:15.5px;line-height:1.85;color:var(--text-2);
}
.dot-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:2px;background:var(--brand-600);
}
.dot-list li b{color:var(--ink-900);font-weight:600}
.num-steps{margin-top:18px;counter-reset:step}
.num-steps li{
  position:relative;padding:14px 16px 14px 56px;margin-bottom:10px;
  background:var(--bg-page);border:1px solid var(--border);
  border-radius:var(--radius-md);
  font-size:15.5px;line-height:1.8;color:var(--text-2);
  transition:all .2s cubic-bezier(.2,.7,.3,1);
}
.num-steps li:hover{border-color:rgba(20,84,155,.35);box-shadow:var(--shadow-1)}
.num-steps li::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;left:16px;top:15px;
  font-size:14px;font-weight:700;color:var(--brand-600);
  font-variant-numeric:tabular-nums;
}
.figure{margin-top:24px}
.figure .frame{
  position:relative;aspect-ratio:16/9;overflow:hidden;
  border-radius:var(--radius-md);border:1px solid var(--border);
  background:linear-gradient(135deg,#E8F0FA,#EDF2F9);
}
.figure .frame img{width:100%;height:100%;object-fit:cover}
.figure figcaption{margin-top:10px;font-size:13px;color:var(--text-3);text-align:center}
.compare-two{display:grid;grid-template-columns:1fr 1fr;gap:18px;margin-top:20px}
.compare-two .cell{
  background:var(--bg-page);border:1px solid var(--border);border-radius:var(--radius-md);
  padding:18px 20px;
}
.compare-two .cell h4{font-size:15px;font-weight:700;color:var(--ink-900)}
.compare-two .cell p{margin-top:8px;font-size:14.5px;line-height:1.8;color:var(--text-2)}
@media (max-width:639px){.compare-two{grid-template-columns:1fr}}

/* ============ 右侧粘性卡 ============ */
.aside-sticky{position:sticky;top:88px}
.aside-card{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);
  padding:26px;box-shadow:var(--shadow-1);
}
.aside-card h3{font-size:17px;font-weight:700;color:var(--text-1)}
.aside-card .aside-sub{margin-top:8px;font-size:13.5px;color:var(--text-3)}
.num-list{margin-top:18px;counter-reset:aside}
.num-list li{
  position:relative;padding-left:38px;margin-bottom:14px;
  font-size:14.5px;line-height:1.75;color:var(--text-2);
}
.num-list li::before{
  counter-increment:aside;content:counter(aside,decimal-leading-zero);
  position:absolute;left:0;top:1px;
  width:26px;height:26px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  font-size:12px;font-weight:700;color:var(--brand-600);
  background:var(--brand-100);font-variant-numeric:tabular-nums;
}
.aside-divider{height:2px;border-radius:2px;background:linear-gradient(90deg,var(--brand-600),rgba(20,224,200,.85));margin:22px 0}
.aside-note{font-size:13.5px;line-height:1.8;color:var(--text-2)}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;
  font-size:15px;font-weight:600;color:#fff;background:var(--brand-600);
  border:1px solid var(--brand-600);border-radius:10px;
  transition:all .2s cubic-bezier(.2,.7,.3,1);
}
.btn-primary:hover{background:var(--neon-500);border-color:var(--neon-500);color:#06121F;box-shadow:var(--shadow-neon);transform:translateY(-1px)}
.btn-outline{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;
  font-size:15px;font-weight:600;color:var(--brand-600);
  background:transparent;border:1px solid var(--brand-600);border-radius:10px;
  transition:all .2s cubic-bezier(.2,.7,.3,1);
}
.btn-outline:hover{background:var(--brand-100);border-color:var(--brand-600);box-shadow:var(--shadow-1)}
.aside-card .btn-primary{width:100%;margin-top:20px}

@media (max-width:1023px){
  .aside-sticky{position:static}
}

/* ============ CTA 条 ============ */
.cta-band{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:24px;
  background:var(--brand-100);
  border:1px solid rgba(20,84,155,.16);
  border-radius:var(--radius-md);
  padding:32px;
}
.cta-band h2{font-size:22px;font-weight:700;color:var(--ink-900);line-height:1.4}
.cta-band p{margin-top:10px;font-size:15px;line-height:1.8;color:var(--text-2);max-width:640px}
@media (max-width:639px){.cta-band{padding:24px 20px}.cta-band .btn-primary{width:100%}}

/* ============ FAQ ============ */
.faq-wrap{margin-top:8px}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);
  margin-bottom:12px;overflow:hidden;
  transition:all .2s cubic-bezier(.2,.7,.3,1);
}
.faq-item[open]{border-color:rgba(20,224,200,.45);box-shadow:var(--shadow-1)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  min-height:60px;padding:16px 22px;
  font-size:16.5px;font-weight:600;color:var(--text-1);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-icon{
  flex:0 0 28px;width:28px;height:28px;border-radius:999px;
  display:flex;align-items:center;justify-content:center;
  font-size:16px;line-height:1;color:var(--brand-600);
  border:1px solid var(--brand-600);
  transition:all .2s cubic-bezier(.2,.7,.3,1);
}
.faq-item[open] .faq-icon{
  background:var(--neon-500);border-color:var(--neon-500);color:var(--ink-900);
  box-shadow:var(--shadow-neon);transform:rotate(45deg);
}
.faq-body{
  padding:18px 22px 22px;background:var(--bg-page);
  font-size:15px;line-height:1.85;color:var(--text-2);
  border-top:1px solid var(--border);
}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  background:var(--ink-900);
  color:#C7D3E4;
  padding:64px 0 0;
  margin-top:0;
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:0;height:1px;
  background:linear-gradient(90deg,rgba(20,224,200,0),rgba(20,224,200,.75),rgba(59,130,246,.75),rgba(20,224,200,0));
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}
.footer-brand{display:flex;align-items:center;gap:10px}
.footer-brand .brand-mark{width:28px;height:28px;flex:0 0 28px}
.footer-brand b{font-size:16px;font-weight:700;color:#fff}
.footer-about{margin-top:14px;font-size:14px;line-height:1.8;color:#9FB0C7;max-width:320px}
.footer-col h4{font-size:15px;font-weight:700;color:#fff}
.footer-col ul{margin-top:14px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14px;color:#C7D3E4;border-bottom:2px solid transparent;transition:all .2s cubic-bezier(.2,.7,.3,1)}
.footer-col a:hover{color:var(--neon-500);border-bottom-color:var(--neon-500)}
.footer-col p{margin-top:14px;font-size:14px;line-height:1.8;color:#9FB0C7}
.footer-bottom{
  margin-top:48px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  padding:20px 0 26px;
  border-top:1px solid rgba(199,211,228,.16);
  font-size:13px;color:#8A9BB3;
}
.footer-bottom a{color:#C7D3E4;transition:color .2s cubic-bezier(.2,.7,.3,1)}
.footer-bottom a:hover{color:var(--neon-500)}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:639px){
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .site-footer{padding-top:48px}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:color .2s linear,background-color .2s linear !important}
  .btn-primary:hover,.btn-neon:hover,.btn-outline:hover{transform:none !important}
}

/* roulang page: category2 */
:root{
  --brand-700:#0F4079;
  --brand-600:#14549B;
  --brand-500:#1E6BC4;
  --brand-100:#E8F0FA;
  --neon-500:#14E0C8;
  --neon-400:#5CF0DE;
  --neon-glow:rgba(20,224,200,.55);
  --ink-900:#0A1526;
  --ink-800:#0E1E33;
  --ink-700:#1E2A3D;
  --text-1:#0A1526;
  --text-2:#46536B;
  --text-3:#7B8899;
  --border:#E3E9F2;
  --border-strong:#D6DEEA;
  --card:#FFFFFF;
  --bg-page:#F6F8FB;
  --bg-alt:#EDF2F9;
  --warm-500:#F0A33A;
  --danger:#D9534F;
  --success:#17A673;
  --shadow-1:0 1px 2px rgba(10,21,38,.04), 0 8px 24px -8px rgba(10,21,38,.10);
  --shadow-2:0 16px 36px -12px rgba(18,80,143,.22);
  --shadow-neon:0 0 18px rgba(20,224,200,.45);
  --radius-lg:16px;
  --radius:12px;
  --radius-btn:10px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-top:64px;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--bg-page);
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0;}
ul,ol{list-style:none;}
::selection{background:rgba(20,224,200,.28);}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}

/* ---------- 顶栏 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:60;
  background:linear-gradient(180deg,#0A1526 0%,#0E1E33 100%);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:0;
  height:1px;
  background:linear-gradient(90deg,rgba(20,224,200,.75),rgba(59,130,246,.75));
}
.nav-wrap{
  display:flex;
  align-items:center;
  gap:24px;
  height:64px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  white-space:nowrap;
}
.brand-mark{
  width:32px;height:32px;
  flex:0 0 auto;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:10px;
  border:1px solid rgba(20,224,200,.5);
  background:rgba(20,224,200,.08);
}
.brand-mark svg{width:20px;height:20px;display:block;}
.brand-text{
  font-size:18px;
  font-weight:700;
  color:#FFFFFF;
  letter-spacing:0;
}
.nav-menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:auto;
}
.nav-menu a{
  position:relative;
  display:inline-block;
  padding:8px 14px;
  border-radius:999px;
  font-size:15px;
  color:#C7D3E4;
  transition:color .2s cubic-bezier(.2,.7,.3,1),background-color .2s cubic-bezier(.2,.7,.3,1);
}
.nav-menu a:hover{
  color:var(--neon-500);
  background:rgba(20,224,200,.08);
}
.nav-menu a.active{
  color:var(--neon-500);
  background:rgba(20,224,200,.10);
}
.nav-menu a.active::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:1px;
  width:20px;
  height:2px;
  border-radius:2px;
  transform:translateX(-50%);
  background:var(--neon-500);
  box-shadow:0 0 12px rgba(20,224,200,.9);
}
.nav-right{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.btn-neon{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:40px;
  padding:0 18px;
  border-radius:var(--radius-btn);
  background:var(--neon-500);
  color:#06121F;
  font-size:14px;
  font-weight:700;
  white-space:nowrap;
  transition:background-color .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s cubic-bezier(.2,.7,.3,1),color .2s cubic-bezier(.2,.7,.3,1);
}
.btn-neon:hover{
  background:var(--neon-400);
  box-shadow:var(--shadow-neon);
}
.nav-toggle{
  display:none;
  position:relative;
  width:36px;height:36px;
  border-radius:10px;
  border:1px solid rgba(20,224,200,.55);
  background:transparent;
  cursor:pointer;
  padding:0;
}
.nav-toggle span{
  position:absolute;
  left:9px;
  width:16px;
  height:2px;
  border-radius:2px;
  background:#FFFFFF;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),opacity .2s cubic-bezier(.2,.7,.3,1);
}
.nav-toggle span:nth-child(1){top:12px;}
.nav-toggle span:nth-child(2){top:17px;}
.nav-toggle span:nth-child(3){top:22px;}
.nav-toggle.open span:nth-child(1){transform:translateY(5px) rotate(45deg);}
.nav-toggle.open span:nth-child(2){opacity:0;}
.nav-toggle.open span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

.mobile-drawer{
  display:none;
  background:#0A1526;
  border-top:1px solid rgba(20,224,200,.18);
}
.mobile-drawer.open{display:block;}
.mobile-drawer nav{padding:8px 16px 0;}
.mobile-drawer nav a{
  display:flex;
  align-items:center;
  height:48px;
  padding:0 14px;
  border-radius:10px;
  font-size:15px;
  color:#C7D3E4;
  transition:background-color .2s cubic-bezier(.2,.7,.3,1),color .2s cubic-bezier(.2,.7,.3,1);
}
.mobile-drawer nav a.active{
  color:var(--neon-500);
  background:rgba(20,224,200,.10);
  box-shadow:inset 3px 0 0 var(--neon-500);
}
.mobile-drawer .drawer-cta{
  padding:14px 16px 18px;
}
.mobile-drawer .drawer-cta a{
  display:flex;
  align-items:center;
  justify-content:center;
  height:46px;
  width:100%;
  border-radius:var(--radius-btn);
  background:var(--neon-500);
  color:#06121F;
  font-weight:700;
  font-size:15px;
}

/* ---------- 面包屑 ---------- */
.breadcrumb-bar{
  background:var(--bg-page);
  border-bottom:1px solid var(--border);
}
.breadcrumb{
  display:flex;
  align-items:center;
  flex-wrap:wrap;
  gap:8px;
  padding:16px 0;
  font-size:13px;
  color:var(--text-2);
}
.breadcrumb a{color:var(--text-2);transition:color .2s cubic-bezier(.2,.7,.3,1);}
.breadcrumb a:hover{color:var(--brand-600);}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--text-1);font-weight:600;}

/* ---------- 分类 Hero ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  background:var(--bg-page);
  border-bottom:1px solid var(--border);
}
.cat-hero-bg{
  position:absolute;
  inset:0;
  background-image:url(/assets/images/backpic/back-2.webp);
  background-size:cover;
  background-position:center;
  opacity:.09;
}
.cat-hero::after{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(20,84,155,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(20,84,155,.06) 1px,transparent 1px);
  background-size:40px 40px;
}
.cat-hero-inner{
  position:relative;
  z-index:2;
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:40px;
  padding-top:64px;
  padding-bottom:56px;
  min-height:262px;
}
.hero-badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  color:var(--brand-700);
  background:var(--brand-100);
  border:1px solid rgba(20,84,155,.16);
}
.cat-hero h1{
  margin-top:16px;
  font-size:clamp(30px,3.6vw,40px);
  font-weight:700;
  line-height:1.3;
  color:var(--text-1);
  max-width:720px;
}
.cat-hero p{
  margin-top:14px;
  max-width:640px;
  font-size:17px;
  line-height:1.8;
  color:var(--text-2);
}
.hero-line{
  width:48px;
  height:3px;
  margin-top:20px;
  border-radius:2px;
  background:var(--neon-500);
  box-shadow:0 0 14px rgba(20,224,200,.5);
}
.stat-card{
  flex:0 0 auto;
  display:flex;
  align-items:stretch;
  gap:0;
  background:#FFFFFF;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  padding:18px 6px;
  min-width:250px;
}
.stat-card::before{
  content:"";
  position:absolute;
}
.stat-cell{
  flex:1 1 0;
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  padding:0 16px;
  text-align:center;
}
.stat-cell b{
  font-size:32px;
  font-weight:700;
  line-height:1.1;
  color:var(--ink-900);
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}
.stat-cell span{
  margin-top:6px;
  font-size:13px;
  color:var(--text-2);
}
.stat-divider{
  width:1px;
  background:var(--border);
  margin:6px 0;
}

/* ---------- 通用板块 ---------- */
.section{
  padding-top:88px;
  padding-bottom:88px;
}
.section-alt{
  background:var(--bg-alt);
}
.section-head{
  max-width:760px;
  margin:0 auto 40px;
  text-align:center;
}
.section-head h2{
  font-size:clamp(24px,2.6vw,30px);
  font-weight:700;
  line-height:1.35;
  color:var(--text-1);
}
.section-head p{
  margin-top:12px;
  font-size:16px;
  color:var(--text-2);
  line-height:1.85;
}

/* ---------- 步骤流 ---------- */
.steps{
  position:relative;
  max-width:900px;
  margin:0 auto;
  padding-left:36px;
}
.steps::before{
  content:"";
  position:absolute;
  left:5px;
  top:10px;
  bottom:10px;
  width:2px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--brand-500) 0%,var(--neon-500) 100%);
  opacity:.85;
}
.step{
  position:relative;
  margin-bottom:20px;
}
.step:last-child{margin-bottom:0;}
.step-dot{
  position:absolute;
  left:-36px;
  top:26px;
  width:12px;
  height:12px;
  border-radius:50%;
  background:var(--neon-500);
  border:2px solid #FFFFFF;
  box-shadow:0 0 0 2px rgba(20,224,200,.35);
}
.step.is-first .step-dot{
  box-shadow:0 0 0 2px rgba(20,224,200,.4),0 0 12px 4px rgba(20,224,200,.45);
}
.step-card{
  background:#FFFFFF;
  border:1px solid var(--border);
  border-radius:var(--radius);
  padding:24px 28px;
  box-shadow:var(--shadow-1);
  transition:transform .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s cubic-bezier(.2,.7,.3,1),border-color .2s cubic-bezier(.2,.7,.3,1);
}
.step-card:hover{
  transform:translateY(-2px);
  box-shadow:var(--shadow-2);
  border-color:rgba(20,84,155,.35);
}
.step-num{
  display:inline-block;
  font-size:14px;
  font-weight:700;
  color:var(--brand-500);
  font-variant-numeric:tabular-nums;
  letter-spacing:.01em;
}
.step-card h3{
  margin-top:6px;
  font-size:19px;
  font-weight:600;
  line-height:1.5;
  color:var(--text-1);
}
.step-card p{
  margin-top:10px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}
.step-list{
  margin-top:14px;
  display:grid;
  gap:8px;
}
.step-list li{
  position:relative;
  padding-left:18px;
  font-size:14px;
  line-height:1.8;
  color:var(--text-2);
}
.step-list li::before{
  content:"";
  position:absolute;
  left:0;
  top:9px;
  width:6px;
  height:6px;
  border-radius:2px;
  background:var(--brand-500);
}
.step-tag{
  display:inline-flex;
  align-items:center;
  height:24px;
  padding:0 10px;
  margin-left:10px;
  border-radius:999px;
  font-size:12px;
  font-weight:600;
  color:#0A1526;
  background:rgba(20,224,200,.16);
  vertical-align:2px;
}

/* ---------- 路径核对 ---------- */
.check-figure{
  max-width:900px;
  margin:0 auto 32px;
  border-radius:var(--radius);
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow-1);
  background:linear-gradient(135deg,#E8F0FA,#EDF2F9);
  aspect-ratio:16/9;
}
.check-figure img{
  width:100%;
  height:100%;
  object-fit:cover;
  transition:transform .35s cubic-bezier(.2,.7,.3,1);
}
.check-figure:hover img{transform:scale(1.02);}
.compare{
  max-width:900px;
  margin:0 auto;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:0;
  position:relative;
  background:#FFFFFF;
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow-1);
  overflow:hidden;
}
.compare-col{
  padding:28px;
}
.compare-col + .compare-col{
  border-left:1px solid var(--border);
}
.compare-col h3{
  font-size:17px;
  font-weight:700;
  color:var(--text-1);
  display:flex;
  align-items:center;
  gap:8px;
}
.compare-col h3 i{
  width:8px;height:8px;
  border-radius:50%;
  background:var(--text-3);
  display:inline-block;
}
.compare-col.is-good h3 i{
  background:var(--neon-500);
  box-shadow:0 0 10px rgba(20,224,200,.8);
}
.compare-col ul{margin-top:16px;}
.compare-col li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  min-height:44px;
  padding:8px 0;
  font-size:15px;
  line-height:1.75;
  color:var(--text-2);
  border-bottom:1px dashed var(--border);
}
.compare-col li:last-child{border-bottom:none;}
.compare-col li::before{
  content:"";
  flex:0 0 auto;
  width:6px;
  height:6px;
  margin-top:9px;
  border-radius:50%;
  background:var(--text-3);
}
.compare-col.is-good li::before{background:var(--neon-500);}
.compare-col li em{
  margin-left:auto;
  flex:0 0 auto;
  font-style:normal;
  font-size:12px;
  font-weight:600;
  color:#7A4B06;
  background:rgba(240,163,58,.18);
  border-radius:999px;
  padding:2px 9px;
  white-space:nowrap;
}
.compare-note{
  max-width:900px;
  margin:20px auto 0;
  text-align:center;
  font-size:14px;
  color:var(--text-3);
}

/* ---------- CTA 条 ---------- */
.cta-band{
  padding-bottom:88px;
}
.cta-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:28px;
  padding:32px;
  border-radius:var(--radius);
  background:var(--brand-100);
  border:1px solid rgba(20,84,155,.14);
}
.cta-inner h2{
  font-size:22px;
  font-weight:700;
  color:var(--brand-700);
  line-height:1.4;
}
.cta-inner p{
  margin-top:8px;
  font-size:15px;
  color:var(--text-2);
}
.btn-primary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:46px;
  padding:0 26px;
  border-radius:var(--radius-btn);
  background:var(--brand-600);
  color:#FFFFFF;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:background-color .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s cubic-bezier(.2,.7,.3,1),color .2s cubic-bezier(.2,.7,.3,1);
}
.btn-primary:hover{
  background:var(--neon-500);
  color:#06121F;
  box-shadow:var(--shadow-neon);
}
.btn-outline{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  height:46px;
  padding:0 24px;
  border-radius:var(--radius-btn);
  border:1px solid var(--brand-600);
  color:var(--brand-600);
  background:transparent;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  transition:background-color .2s cubic-bezier(.2,.7,.3,1),border-color .2s cubic-bezier(.2,.7,.3,1),color .2s cubic-bezier(.2,.7,.3,1);
}
.btn-outline:hover{
  background:var(--brand-100);
  border-color:var(--brand-500);
}

/* ---------- FAQ ---------- */
.faq-wrap{
  max-width:900px;
  margin:0 auto;
}
.faq-item{
  background:#FFFFFF;
  border:1px solid var(--border);
  border-radius:var(--radius);
  box-shadow:var(--shadow-1);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .2s cubic-bezier(.2,.7,.3,1),box-shadow .2s cubic-bezier(.2,.7,.3,1);
}
.faq-item[open]{
  border-color:rgba(20,84,155,.3);
  box-shadow:var(--shadow-2);
}
.faq-item summary{
  list-style:none;
  cursor:pointer;
  display:flex;
  align-items:center;
  gap:16px;
  min-height:60px;
  padding:14px 20px;
  font-size:16px;
  font-weight:600;
  color:var(--text-1);
  line-height:1.6;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::marker{content:"";}
.faq-icon{
  margin-left:auto;
  flex:0 0 auto;
  width:28px;height:28px;
  border-radius:50%;
  border:1px solid var(--brand-500);
  color:var(--brand-500);
  display:inline-flex;
  align-items:center;
  justify-content:center;
  font-size:16px;
  line-height:1;
  transition:transform .2s cubic-bezier(.2,.7,.3,1),background-color .2s cubic-bezier(.2,.7,.3,1),color .2s cubic-bezier(.2,.7,.3,1),border-color .2s cubic-bezier(.2,.7,.3,1);
}
.faq-item[open] .faq-icon{
  transform:rotate(45deg);
  background:var(--neon-500);
  border-color:var(--neon-500);
  color:#06121F;
}
.faq-body{
  padding:0 24px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}
.faq-body p + p{margin-top:10px;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#0A1526;
  position:relative;
  color:#C7D3E4;
  margin-top:8px;
}
.site-footer::before{
  content:"";
  position:absolute;
  left:0;right:0;top:0;
  height:1px;
  background:linear-gradient(90deg,rgba(20,224,200,.75),rgba(59,130,246,.75));
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:32px;
  padding-top:56px;
  padding-bottom:40px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
}
.footer-brand .brand-mark{
  width:28px;height:28px;
}
.footer-brand .brand-mark svg{width:18px;height:18px;}
.footer-brand b{
  color:#FFFFFF;
  font-size:16px;
  font-weight:700;
}
.footer-about{
  margin-top:14px;
  font-size:14px;
  line-height:1.8;
  color:#9FB0C6;
  max-width:320px;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  color:#FFFFFF;
  margin-bottom:16px;
}
.footer-col ul li{margin-bottom:10px;}
.footer-col a{
  color:#C7D3E4;
  font-size:14px;
  transition:color .2s cubic-bezier(.2,.7,.3,1);
  text-underline-offset:2px;
}
.footer-col a:hover{
  color:var(--neon-500);
  text-decoration:underline;
}
.footer-col p{
  font-size:14px;
  line-height:1.8;
  color:#9FB0C6;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:16px;
  justify-content:space-between;
  padding-top:20px;
  padding-bottom:28px;
  border-top:1px solid rgba(199,211,228,.14);
  font-size:13px;
  color:#8698B0;
}
.footer-bottom a{
  color:#8698B0;
  transition:color .2s cubic-bezier(.2,.7,.3,1);
}
.footer-bottom a:hover{color:var(--neon-500);}

/* ---------- 焦点态 ---------- */
a:focus-visible,
button:focus-visible,
summary:focus-visible,
input:focus-visible,
textarea:focus-visible{
  outline:2px solid var(--neon-500);
  outline-offset:2px;
  border-radius:6px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  .nav-menu{display:none;}
  .nav-right .btn-neon{display:none;}
  .nav-toggle{display:block;}
  .cat-hero-inner{
    flex-direction:column;
    align-items:flex-start;
    gap:28px;
    padding-top:48px;
    padding-bottom:44px;
  }
  .stat-card{min-width:0;width:100%;max-width:420px;}
  .section{padding-top:72px;padding-bottom:72px;}
  .cta-band{padding-bottom:72px;}
  .footer-grid{
    grid-template-columns:1fr 1fr;
    gap:32px;
    padding-top:48px;
  }
}
@media (max-width:767px){
  body{font-size:15px;}
  .cat-hero h1{font-size:30px;}
  .cat-hero p{font-size:16px;}
  .section{padding-top:56px;padding-bottom:56px;}
  .cta-band{padding-bottom:56px;}
  .compare{grid-template-columns:1fr;}
  .compare-col + .compare-col{
    border-left:none;
    border-top:1px solid var(--border);
  }
  .cta-inner{
    flex-direction:column;
    align-items:flex-start;
    gap:20px;
    padding:24px;
  }
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:10px;}
}
@media (max-width:639px){
  body{padding-top:56px;}
  .nav-wrap{height:56px;gap:12px;}
  .brand-text{font-size:16px;}
  .container{padding-left:16px;padding-right:16px;}
  .section{padding-top:44px;padding-bottom:44px;}
  .cat-hero-inner{padding-top:36px;padding-bottom:36px;min-height:auto;}
  .steps{padding-left:28px;}
  .steps::before{left:2px;}
  .step-dot{left:-31px;top:24px;}
  .step-card{padding:20px;}
  .step-card h3{font-size:17px;}
  .stat-card{max-width:100%;padding:14px 4px;}
  .stat-cell b{font-size:26px;}
  .cta-band{padding-bottom:44px;}
  .btn-primary,.btn-outline{width:100%;max-width:320px;}
  .faq-item summary{font-size:15px;padding:14px 16px;}
  .faq-body{padding:0 18px 18px;}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms !important;animation-duration:.01ms !important;}
  .step-card:hover{transform:none;}
  .check-figure:hover img{transform:none;}
}

/* roulang page: category3 */
:root{
  --brand-700:#0F4079;
  --brand-600:#14549B;
  --brand-500:#1E6BC4;
  --brand-100:#E8F0FA;
  --neon-500:#14E0C8;
  --neon-400:#5CF0DE;
  --neon-glow:rgba(20,224,200,.55);
  --ink-900:#0A1526;
  --ink-800:#0E1E33;
  --ink-700:#1E2A3D;
  --text-1:#0A1526;
  --text-2:#46536B;
  --text-3:#7B8899;
  --border:#E3E9F2;
  --border-strong:#D6DEEA;
  --card:#FFFFFF;
  --bg-page:#F6F8FB;
  --bg-alt:#EDF2F9;
  --warm-500:#F0A33A;
  --danger:#D9534F;
  --success:#17A673;
  --shadow-1:0 1px 2px rgba(10,21,38,.04),0 8px 24px -8px rgba(10,21,38,.10);
  --shadow-2:0 16px 36px -12px rgba(18,80,143,.22);
  --shadow-neon:0 0 18px rgba(20,224,200,.45);
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --ease:cubic-bezier(.2,.7,.3,1);
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  padding-top:64px;
  font-family:system-ui,-apple-system,"PingFang SC","Microsoft YaHei","Noto Sans SC","Source Han Sans SC",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background:var(--bg-page);
  font-variant-numeric:tabular-nums;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;}
h1,h2,h3,h4,p,ul,ol{margin:0;padding:0;}
ul,ol{list-style:none;}
:focus-visible{outline:2px solid var(--neon-500);outline-offset:2px;box-shadow:0 0 0 4px rgba(20,224,200,.25);}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px;}

/* ------- header ------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  background:linear-gradient(180deg,#0A1526 0%,#0E1E33 100%);
  box-shadow:0 8px 28px -16px rgba(10,21,38,.85);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,#14E0C8,#3B82F6);
  opacity:.75;
}
.nav-wrap{display:flex;align-items:center;justify-content:space-between;gap:24px;height:64px;}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0;white-space:nowrap;}
.brand-mark{
  width:32px;height:32px;border-radius:10px;display:grid;place-items:center;
  background:rgba(20,224,200,.10);border:1px solid rgba(20,224,200,.45);flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{font-size:18px;font-weight:700;color:#fff;letter-spacing:0;}
.nav-menu{display:flex;align-items:center;gap:4px;}
.nav-menu a{
  position:relative;display:inline-flex;align-items:center;height:38px;padding:0 14px;
  border-radius:999px;font-size:15px;color:#C7D3E4;
  transition:all .2s var(--ease);
}
.nav-menu a:hover{color:#fff;background:rgba(255,255,255,.06);}
.nav-menu a.active{color:var(--neon-500);background:rgba(20,224,200,.10);}
.nav-menu a.active::after{
  content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;background:var(--neon-500);
  box-shadow:0 0 12px var(--neon-glow);
}
.nav-right{display:flex;align-items:center;gap:12px;}
.btn-neon{
  display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 20px;
  border-radius:var(--r-sm);background:var(--neon-500);color:#06121F;
  font-size:14px;font-weight:700;white-space:nowrap;
  transition:all .2s var(--ease);
}
.btn-neon:hover{background:var(--neon-400);box-shadow:var(--shadow-neon);}
.nav-toggle{
  display:none;width:36px;height:36px;padding:0;cursor:pointer;
  border-radius:var(--r-sm);border:1px solid rgba(20,224,200,.55);background:transparent;
}
.nav-toggle span{display:block;width:18px;height:2px;margin:3px auto;border-radius:2px;background:#fff;transition:all .2s var(--ease);}
body.nav-open .nav-toggle span:nth-child(1){transform:translateY(5px) rotate(45deg);}
body.nav-open .nav-toggle span:nth-child(2){opacity:0;}
body.nav-open .nav-toggle span:nth-child(3){transform:translateY(-5px) rotate(-45deg);}

.mobile-drawer{
  position:fixed;top:56px;left:0;right:0;z-index:55;
  background:#0A1526;border-bottom:1px solid rgba(20,224,200,.32);
  padding:12px 16px 20px;
  opacity:0;visibility:hidden;transform:translateY(-12px);
  transition:opacity .22s var(--ease),transform .22s var(--ease),visibility .22s var(--ease);
}
.mobile-drawer.open{opacity:1;visibility:visible;transform:translateY(0);}
.mobile-drawer a{
  position:relative;display:flex;align-items:center;height:48px;padding-left:14px;
  border-radius:var(--r-sm);font-size:15px;color:#C7D3E4;
  transition:all .2s var(--ease);
}
.mobile-drawer a:hover{background:rgba(255,255,255,.06);color:#fff;}
.mobile-drawer a.active{background:rgba(20,224,200,.10);color:var(--neon-500);}
.mobile-drawer a.active::before{
  content:"";position:absolute;left:0;top:10px;bottom:10px;width:3px;
  border-radius:3px;background:var(--neon-500);
}
.mobile-drawer .drawer-cta{
  width:100%;height:46px;margin-top:12px;padding:0;
  justify-content:center;display:flex;align-items:center;
}

/* ------- breadcrumb ------- */
.crumb-bar{background:#fff;border-bottom:1px solid var(--border);}
.crumb{display:flex;align-items:center;gap:8px;padding:16px 0;font-size:13px;color:var(--text-2);flex-wrap:wrap;}
.crumb a{color:var(--text-2);transition:color .2s var(--ease);}
.crumb a:hover{color:var(--brand-600);}
.crumb .sep{color:var(--border-strong);}
.crumb .current{color:var(--text-1);font-weight:600;}

/* ------- hero ------- */
.page-hero{position:relative;overflow:hidden;background:#0A1526;padding:52px 0 56px;}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.20;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(120deg,rgba(10,21,38,.95) 0%,rgba(14,30,51,.90) 52%,rgba(15,64,121,.74) 100%);
}
.page-hero .container{position:relative;z-index:2;}
.hero-inner{display:grid;grid-template-columns:1fr 330px;gap:44px;align-items:center;}
.hero-badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;border-radius:999px;
  background:rgba(20,224,200,.14);border:1px solid rgba(20,224,200,.38);
  color:var(--neon-500);font-size:12.5px;font-weight:600;
}
.h1{
  font-size:clamp(28px,4vw,40px);line-height:1.3;font-weight:700;
  color:#fff;margin:18px 0 16px;max-width:760px;
}
.hero-sub{font-size:16px;line-height:1.85;color:#C7D3E4;max-width:660px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 24px;
  border-radius:var(--r-sm);border:1px solid rgba(199,211,228,.42);color:#E6EEF9;
  font-size:15px;font-weight:600;transition:all .2s var(--ease);
}
.btn-ghost:hover{border-color:var(--neon-500);background:rgba(20,224,200,.10);color:#fff;}

.hero-stat-card{
  position:relative;background:#fff;border-radius:var(--r-lg);padding:24px;
  box-shadow:0 20px 44px -16px rgba(0,0,0,.55);overflow:hidden;
}
.hero-stat-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:4px;
  background:linear-gradient(90deg,#14E0C8,#3B82F6);
}
.stat-title{font-size:13px;color:var(--text-3);margin-bottom:16px;}
.stat-row{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
.stat-num{
  display:block;font-size:34px;font-weight:700;line-height:1.1;
  color:var(--ink-900);font-variant-numeric:tabular-nums;
}
.stat-label{display:block;font-size:13px;color:var(--text-2);margin-top:6px;}
.stat-note{
  font-size:12.5px;line-height:1.7;color:var(--text-3);
  margin-top:18px;padding-top:14px;border-top:1px solid var(--border);
}

/* ------- section ------- */
.section{padding:80px 0;}
.section.alt{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border);}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
  padding-bottom:18px;margin-bottom:34px;border-bottom:1px solid var(--border);
}
.h2{font-size:clamp(22px,2.5vw,30px);line-height:1.35;font-weight:700;color:var(--ink-900);}
.section-sub{font-size:14.5px;line-height:1.8;color:var(--text-2);margin-top:8px;max-width:640px;}
.section-link{font-size:14px;font-weight:600;color:var(--brand-600);white-space:nowrap;transition:color .2s var(--ease);}
.section-link:hover{color:var(--brand-500);}

/* ------- 筛选胶囊 ------- */
.filter-bar{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:28px;}
.filter-label{font-size:13px;color:var(--text-3);}
.filter-pills{display:flex;gap:10px;flex-wrap:wrap;}
.pill{
  display:inline-flex;align-items:center;height:34px;padding:0 16px;border-radius:999px;
  border:1px solid var(--border-strong);background:#fff;color:var(--text-2);font-size:13.5px;
  transition:all .2s var(--ease);
}
.pill:hover{border-color:rgba(20,84,155,.45);color:var(--brand-600);}
.pill.active{
  background:var(--neon-500);border-color:var(--neon-500);color:#06121F;
  font-weight:600;box-shadow:0 0 18px rgba(20,224,200,.35);
}

/* ------- 图文对比网格 ------- */
.card-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.info-card{
  display:flex;flex-direction:column;
  background:#fff;border:1px solid var(--border);border-left:4px solid var(--brand-600);
  border-radius:var(--r-lg);padding:24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.info-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(20,84,155,.35);border-left-color:var(--brand-500);}
.info-icon{
  width:44px;height:44px;border-radius:var(--r-md);display:grid;place-items:center;
  background:var(--brand-100);color:var(--brand-600);margin-bottom:16px;
}
.info-icon svg{width:21px;height:21px;}
.h3{font-size:18px;line-height:1.5;font-weight:600;color:var(--ink-900);margin-bottom:10px;}
.info-desc{
  font-size:14.5px;line-height:1.75;color:var(--text-2);margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-arrow{
  margin-top:auto;display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand-600);transition:color .2s var(--ease);
}
.card-arrow svg{width:14px;height:14px;transition:transform .2s var(--ease);}
.card-arrow:hover{color:var(--brand-500);}
.card-arrow:hover svg{transform:translateX(4px);}

/* ------- 处理阶段横滚 ------- */
.steps-scroll{
  display:flex;gap:20px;overflow-x:auto;padding:4px 4px 18px;
  scroll-snap-type:x mandatory;-webkit-overflow-scrolling:touch;
}
.steps-scroll::-webkit-scrollbar{height:8px;}
.steps-scroll::-webkit-scrollbar-track{background:#F6F8FB;border-radius:999px;}
.steps-scroll::-webkit-scrollbar-thumb{background:var(--border-strong);border-radius:999px;}
.steps-scroll::-webkit-scrollbar-thumb:hover{background:var(--brand-500);}
.step-card{
  flex:0 0 262px;scroll-snap-align:start;
  background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.step-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-2);border-color:rgba(20,84,155,.35);}
.step-no{
  display:inline-block;font-size:14px;font-weight:700;color:var(--text-3);
  font-variant-numeric:tabular-nums;margin-bottom:14px;
}
.step-card h3{font-size:17px;font-weight:600;color:var(--ink-900);margin-bottom:10px;line-height:1.5;}
.step-card p{font-size:14.5px;line-height:1.75;color:var(--text-2);}
.step-line{width:44px;height:3px;border-radius:3px;background:linear-gradient(90deg,#14E0C8,#3B82F6);margin-bottom:16px;}

/* ------- 两栏对照 ------- */
.compare{display:grid;grid-template-columns:1fr 1fr;gap:24px;}
.compare-col{background:#fff;border:1px solid var(--border);border-radius:var(--r-lg);padding:28px;box-shadow:var(--shadow-1);}
.compare-col.right{border-color:rgba(20,224,200,.48);box-shadow:0 16px 36px -18px rgba(20,224,200,.45);}
.compare-title{display:flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--ink-900);margin-bottom:6px;}
.compare-tag{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;font-weight:600;background:var(--brand-100);color:var(--brand-600);
}
.compare-tag.neon{background:rgba(20,224,200,.16);color:#0A1526;}
.compare-note{font-size:13.5px;color:var(--text-3);margin-bottom:18px;}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  padding:13px 0;border-bottom:1px dashed var(--border);
  font-size:15px;line-height:1.75;color:var(--text-2);
}
.check-list li:last-child{border-bottom:0;}
.dot{width:8px;height:8px;border-radius:50%;background:var(--border-strong);margin-top:8px;flex:0 0 auto;}
.compare-col.right .dot{background:var(--neon-500);box-shadow:0 0 10px var(--neon-glow);}
.compare-btn{margin-top:20px;}

/* ------- FAQ ------- */
.faq-list{max-width:920px;}
.faq-item{
  background:#fff;border:1px solid var(--border);border-radius:var(--r-md);
  margin-bottom:12px;overflow:hidden;transition:box-shadow .2s var(--ease),border-color .2s var(--ease);
}
.faq-item[open]{box-shadow:var(--shadow-1);border-color:rgba(20,84,155,.30);}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:center;justify-content:space-between;
  gap:16px;min-height:60px;padding:16px 20px;font-size:16.5px;font-weight:600;color:var(--ink-900);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-icon{
  width:28px;height:28px;flex:0 0 auto;border-radius:50%;
  border:1px solid var(--brand-600);color:var(--brand-600);
  display:grid;place-items:center;font-size:16px;line-height:1;
  transition:all .2s var(--ease);
}
.faq-item[open] .faq-icon{
  background:var(--neon-500);border-color:var(--neon-500);color:#06121F;transform:rotate(45deg);
}
.faq-body{
  padding:20px 24px;background:var(--bg-page);border-top:1px solid var(--border);
  font-size:15px;line-height:1.85;color:var(--ink-700);
}
.faq-body p + p{margin-top:10px;}

/* ------- CTA 条 ------- */
.cta-band{padding:0 0 80px;}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  background:var(--brand-100);border:1px solid rgba(20,84,155,.18);
  border-radius:var(--r-md);padding:32px;
}
.cta-text .h2{font-size:clamp(20px,2.2vw,26px);}
.cta-text p{font-size:15px;line-height:1.8;color:var(--text-2);margin-top:8px;max-width:620px;}
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;height:48px;padding:0 26px;
  border-radius:var(--r-sm);background:var(--brand-600);color:#fff;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:all .2s var(--ease);
}
.btn-primary:hover{background:var(--neon-500);color:#06121F;box-shadow:0 0 20px rgba(20,224,200,.45);}

/* ------- footer ------- */
.site-footer{position:relative;background:#0A1526;color:#C7D3E4;padding:56px 0 0;}
.site-footer::before{
  content:"";position:absolute;top:0;left:0;right:0;height:1px;
  background:linear-gradient(90deg,#14E0C8,#3B82F6);opacity:.75;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;padding-bottom:40px;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:14px;}
.footer-brand .brand-mark{width:28px;height:28px;}
.footer-brand .brand-mark svg{width:17px;height:17px;}
.footer-brand b{font-size:16px;font-weight:700;color:#fff;}
.footer-about{font-size:14px;line-height:1.8;color:#9FB0C7;max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;color:#fff;margin-bottom:16px;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14px;color:#C7D3E4;padding-bottom:2px;border-bottom:1px solid transparent;transition:all .2s var(--ease);}
.footer-col a:hover{color:var(--neon-500);border-bottom-color:var(--neon-500);}
.footer-col p{font-size:14px;line-height:1.8;color:#9FB0C7;}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px 24px;justify-content:space-between;align-items:center;
  padding:18px 0 24px;border-top:1px solid rgba(199,211,228,.14);
  font-size:13px;color:#8B9DB5;
}
.footer-bottom a{color:#C7D3E4;transition:color .2s var(--ease);}
.footer-bottom a:hover{color:var(--neon-500);}

/* ------- 响应式 ------- */
@media (max-width:1023px){
  body{padding-top:56px;}
  .nav-wrap{height:56px;}
  .nav-menu{display:none;}
  .nav-right .btn-neon{display:none;}
  .nav-toggle{display:block;}
  .hero-inner{grid-template-columns:1fr;gap:28px;}
  .card-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:28px;}
  .section{padding:64px 0;}
  .cta-band{padding-bottom:64px;}
}
@media (max-width:639px){
  .container{padding:0 16px;}
  .brand-text{font-size:16px;}
  .h1{font-size:26px;}
  .hero-sub{font-size:15px;}
  .hero-actions{gap:12px;}
  .btn-ghost{width:100%;max-width:320px;}
  .card-grid{grid-template-columns:1fr;}
  .compare{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr;}
  .section{padding:56px 0;}
  .section-head{flex-direction:column;align-items:flex-start;gap:12px;}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:24px;}
  .btn-primary{width:100%;}
  .stat-num{font-size:30px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:color .2s linear,border-color .2s linear !important;}
  html{scroll-behavior:auto;}
}