/* roulang page: index */
:root{
  --ink-base:#060B16;
  --ink-surface:#0B1220;
  --ink-card:#101A2E;
  --glass:rgba(255,255,255,.045);
  --primary:#2ED9C3;
  --primary-deep:#17A99A;
  --secondary:#4A6BFF;
  --accent:#FFC24B;
  --danger:#FF6B6B;
  --text-1:#EAF2FF;
  --text-2:#9FB0C9;
  --text-3:#6C7E99;
  --line:rgba(255,255,255,.08);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(0,0,0,.28);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(46,217,195,.5), 0 10px 30px rgba(46,217,195,.25);
  --grad:linear-gradient(135deg,#2ED9C3,#4A6BFF);
  --sec-pad:96px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-base);
  color:var(--text-1);
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',system-ui,sans-serif;
  font-size:17px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border:0}
a{color:var(--text-1);text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,transform .2s ease-out}
a:hover{color:var(--primary)}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit}
:focus-visible{outline:2px solid #CFFCF5;outline-offset:3px}
::selection{background:rgba(46,217,195,.3)}
.grid-container{max-width:1200px;margin:0 auto;padding-left:40px;padding-right:40px}
.num{font-variant-numeric:tabular-nums}

/* ============ 导航 ============ */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:900;
  height:72px;
  background:rgba(6,11,22,.55);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease-out,border-color .25s ease-out,backdrop-filter .25s ease-out;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.045);
  background-color:rgba(6,11,22,.82);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.nav-bar{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.brand-mark{
  width:40px;height:40px;border-radius:var(--r-md);
  background:var(--grad);
  display:flex;align-items:center;justify-content:center;
  color:#05121A;font-size:19px;font-weight:800;
  box-shadow:0 6px 18px rgba(46,217,195,.28);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-name{font-size:19px;font-weight:800;letter-spacing:.01em;color:var(--text-1)}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.06em}
.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center}
.nav-links a{
  position:relative;display:inline-block;
  font-size:15px;color:var(--text-2);
  padding:10px 14px;border-radius:var(--r-sm);
  white-space:nowrap;
}
.nav-links a:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.nav-links a.is-active{color:var(--primary)}
.nav-links a.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.nav-links a.nav-pill{
  border:1px solid rgba(255,255,255,.18);
  padding:7px 16px;border-radius:var(--r-pill);
  color:var(--text-1);
}
.nav-links a.nav-pill:hover{border-color:var(--primary);color:var(--primary);background:rgba(46,217,195,.08)}
.nav-actions{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:var(--r-md);border:1px solid transparent;
  font-weight:700;text-align:center;cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,color .2s ease-out,filter .2s ease-out;
}
.btn-primary{
  padding:12px 24px;font-size:15px;
  background:var(--grad);color:#05121A;
  box-shadow:0 6px 18px rgba(46,217,195,.22);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:var(--glow);filter:brightness(1.05);color:#05121A}
.btn-primary:active{transform:translateY(0);box-shadow:none}
.btn-ghost{
  padding:12px 24px;font-size:15px;color:var(--text-1);
  background:transparent;border-color:rgba(255,255,255,.22);
}
.btn-ghost:hover{border-color:var(--primary);background:rgba(46,217,195,.08);color:var(--primary);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-lg{padding:16px 34px;font-size:16px}
.btn-sm{padding:9px 18px;font-size:14px;font-weight:600}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;transform:none;cursor:not-allowed}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
}
.link-arrow i{transition:transform .2s ease-out;font-size:12px}
.link-arrow:hover i{transform:translateX(4px)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text-1);cursor:pointer;align-items:center;justify-content:center;
}
.nav-drawer{
  position:fixed;inset:0;z-index:1000;
  background:var(--ink-base);
  background-image:radial-gradient(circle at 80% 0%,rgba(46,217,195,.10),transparent 60%);
  transform:translateX(100%);
  transition:transform .28s ease-out;
  display:flex;flex-direction:column;
  padding:20px;
  visibility:hidden;
}
.nav-drawer.is-open{transform:translateX(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;height:52px}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text-1);cursor:pointer;display:flex;align-items:center;justify-content:center;
}
.drawer-links{flex:1 1 auto;padding-top:26px;display:flex;flex-direction:column;gap:4px}
.drawer-links a{
  font-size:18px;line-height:56px;color:var(--text-1);
  border-bottom:1px solid var(--line);
}
.drawer-links a.is-active{color:var(--primary)}
.drawer-foot{padding-top:20px}

/* ============ 首屏 ============ */
.hero{position:relative;overflow:hidden;padding:150px 0 84px;min-height:78vh;display:flex;align-items:center}
.hero-bg{
  position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  filter:saturate(.85);
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(6,11,22,.86),rgba(6,11,22,.96));
}
.hero-glow{
  position:absolute;top:-160px;right:-120px;width:600px;height:600px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,217,195,.12),transparent 65%);
  pointer-events:none;
}
.hero-inner{position:relative;z-index:2;width:100%}
.hero-copy{max-width:760px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.02em;color:var(--text-2);
  padding:6px 14px;border-radius:var(--r-pill);
  background:rgba(46,217,195,.12);color:var(--primary);
  margin-bottom:22px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--primary);display:block}
.hero h1{
  font-size:50px;font-weight:800;line-height:1.2;letter-spacing:-.02em;
  color:var(--text-1);margin-bottom:22px;
}
.hero-sub{font-size:19px;line-height:1.8;color:var(--text-2);max-width:640px;margin-bottom:34px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:56px}

.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.metric-card{
  background:var(--glass);
  border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-lg);
  padding:24px;
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  position:relative;
  overflow:hidden;
  box-shadow:var(--sh-1);
}
.metric-card::before{content:"";position:absolute;top:0;left:24px;width:34px;height:2px;background:var(--primary)}
.metric-inner{background:rgba(0,0,0,.25);border-radius:var(--r-md);padding:14px 16px;margin-top:8px}
.metric-num{font-size:34px;font-weight:800;color:var(--accent);line-height:1.15;font-variant-numeric:tabular-nums}
.metric-num small{font-size:14px;font-weight:600;color:var(--text-2);margin-left:4px}
.metric-label{font-size:13px;color:var(--text-2);letter-spacing:.02em;margin-top:4px}

/* ============ 通用板块 ============ */
.section{padding:var(--sec-pad) 0;position:relative}
.section--alt{background:var(--ink-surface)}
.section-head{max-width:720px;margin-bottom:48px}
.section-head h2{font-size:34px;font-weight:700;line-height:1.3;letter-spacing:-.01em}
.section-head h2::after{content:"";display:block;width:48px;height:2px;background:var(--primary);margin-top:18px;border-radius:2px}
.section-head p{font-size:17px;color:var(--text-2);margin-top:18px}
.section-head--split{max-width:none;display:flex;align-items:flex-end;justify-content:space-between;gap:32px}
.section-head--split .head-text{max-width:640px}

/* ============ 服务矩阵 ============ */
.svc-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:22px}
.svc-card{
  background:var(--ink-card);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:var(--sh-1);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
  display:flex;flex-direction:column;
}
.svc-card:hover{transform:translateY(-4px);border-color:rgba(46,217,195,.40);box-shadow:var(--sh-2)}
.svc-icon{
  width:40px;height:40px;border-radius:10px;
  background:rgba(46,217,195,.10);
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:17px;margin-bottom:18px;
}
.svc-card h3{font-size:20px;font-weight:600;line-height:1.4;margin-bottom:10px}
.svc-card p{font-size:15px;color:var(--text-2);line-height:1.8;margin-bottom:16px}
.svc-card .link-arrow{margin-top:auto}
.svc-card--main{grid-column:span 7;padding:0;overflow:hidden;flex-direction:row;align-items:stretch}
.svc-card--main .svc-main-body{padding:32px;display:flex;flex-direction:column;flex:1 1 55%}
.svc-card--main .svc-main-media{flex:1 1 45%;position:relative;min-height:260px}
.svc-card--main .svc-main-media img{width:100%;height:100%;object-fit:cover;border-radius:0}
.svc-card--main h3{font-size:24px}
.svc-card--wide{grid-column:span 5}
.svc-card--third{grid-column:span 3}

/* ============ 对比板块 ============ */
.compare-wrap{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-bottom:40px}
.compare-col{
  background:var(--ink-card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);
}
.compare-col--win{
  border-left:3px solid var(--primary);
  background:linear-gradient(180deg,rgba(46,217,195,.06),rgba(16,26,46,.9));
  box-shadow:var(--sh-2);
}
.compare-col h3{font-size:21px;font-weight:600;margin-bottom:18px;display:flex;align-items:center;gap:10px}
.compare-col h3 .badge{margin-left:auto}
.badge{
  display:inline-block;font-size:13px;letter-spacing:.02em;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(46,217,195,.12);color:var(--primary);
}
.badge--muted{background:rgba(255,255,255,.06);color:var(--text-2)}
.compare-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:12px 0;border-bottom:1px dashed var(--line);
  font-size:15.5px;color:var(--text-2);line-height:1.75;
}
.compare-list li:last-child{border-bottom:0}
.compare-list i{color:var(--text-3);margin-top:6px;font-size:11px}
.compare-col--win .compare-list i{color:var(--primary)}
.compare-col--win .compare-list li{color:var(--text-1)}

.table-scroll{overflow-x:auto;border-radius:var(--r-lg);border:1px solid var(--line);background:var(--ink-card)}
table.compare-table{width:100%;border-collapse:collapse;min-width:640px}
table.compare-table th,table.compare-table td{
  padding:18px 22px;text-align:left;border-bottom:1px solid var(--line);font-size:15px;
}
table.compare-table thead th{background:rgba(46,217,195,.10);color:var(--text-1);font-weight:600;font-size:14px;letter-spacing:.02em}
table.compare-table tbody tr:last-child td{border-bottom:0}
table.compare-table tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
table.compare-table td:first-child{color:var(--text-1);font-weight:600}
.bar-cell{display:flex;align-items:center;gap:12px}
.bar{display:block;flex:1 1 auto;height:8px;border-radius:var(--r-pill);background:rgba(255,255,255,.08);overflow:hidden;min-width:80px}
.bar i{display:block;height:100%;border-radius:var(--r-pill);background:var(--grad)}
.bar--muted i{background:rgba(255,255,255,.22)}
.bar-val{font-size:13px;color:var(--text-2);font-variant-numeric:tabular-nums;white-space:nowrap}
.w-35{width:35%}.w-55{width:55%}.w-72{width:72%}.w-88{width:88%}.w-95{width:95%}

/* ============ 资讯列表 ============ */
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.post-item{
  background:var(--ink-card);border:1px solid var(--line);
  border-radius:var(--r-lg);overflow:hidden;box-shadow:var(--sh-1);
  height:100%;display:flex;flex-direction:column;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.post-item:hover{transform:translateY(-4px);border-color:rgba(46,217,195,.40);box-shadow:var(--sh-2)}
.post-link{display:flex;flex-direction:column;height:100%;color:var(--text-1)}
.post-cover{position:relative;aspect-ratio:16/10;background:rgba(255,255,255,.04);overflow:hidden}
.post-cover img{width:100%;height:100%;object-fit:cover}
.post-badge{
  position:absolute;left:14px;top:14px;
  font-size:12px;letter-spacing:.02em;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(6,11,22,.75);color:var(--primary);backdrop-filter:blur(6px);
}
.post-body{padding:22px;display:flex;flex-direction:column;flex:1 1 auto}
.post-title{
  font-size:18px;font-weight:600;line-height:1.5;margin-bottom:10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-excerpt{
  font-size:14.5px;color:var(--text-2);line-height:1.75;margin-bottom:18px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-date{
  margin-top:auto;font-size:13px;color:var(--text-3);
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding-top:14px;border-top:1px solid var(--line);font-variant-numeric:tabular-nums;
}
.post-date span{display:inline-flex;align-items:center;gap:6px}
.empty-state{
  grid-column:1/-1;
  display:flex;flex-direction:column;align-items:center;gap:16px;
  padding:64px 24px;border:1px dashed var(--line);border-radius:var(--r-lg);
  background:rgba(255,255,255,.02);color:var(--text-2);text-align:center;
}
.empty-state i{font-size:26px;color:var(--primary);opacity:.8}

/* ============ 证据板块 ============ */
.proof-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:22px}
.proof-card{
  background:var(--ink-card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:28px;box-shadow:var(--sh-1);
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.proof-card:hover{transform:translateY(-4px);border-color:rgba(46,217,195,.40)}
.proof-card h3{font-size:19px;font-weight:600;margin-bottom:10px}
.proof-card p{font-size:15px;color:var(--text-2);line-height:1.8}
.proof-quote{font-size:16px;color:var(--text-1);line-height:1.85;margin-bottom:18px}
.proof-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-3);border-top:1px solid var(--line);padding-top:16px}
.proof-avatar{
  width:34px;height:34px;border-radius:50%;background:rgba(46,217,195,.14);
  color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;
}

/* ============ FAQ ============ */
.faq-col{display:flex;flex-direction:column;gap:14px}
.accordion.faq-accordion{background:transparent;margin:0;border:0}
.accordion.faq-accordion .accordion-item{
  background:var(--ink-card);border:1px solid var(--line);
  border-left:3px solid rgba(255,255,255,.10);
  border-radius:var(--r-md);margin-bottom:14px;overflow:hidden;
  transition:border-color .2s ease-out,background-color .2s ease-out;
}
.accordion.faq-accordion .accordion-item.is-active{
  border-left-color:var(--primary);
  background:linear-gradient(90deg,rgba(46,217,195,.06),var(--ink-card));
}
.accordion.faq-accordion .accordion-title{
  border:0;background:transparent;color:var(--text-1);
  font-size:17px;font-weight:600;padding:20px 52px 20px 22px;line-height:1.6;
}
.accordion.faq-accordion .accordion-title:hover{background:rgba(255,255,255,.03);color:var(--text-1)}
.accordion.faq-accordion .accordion-title::before{
  content:"+";position:absolute;right:20px;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--primary);line-height:1;
}
.accordion.faq-accordion .accordion-item.is-active .accordion-title::before{content:"−"}
.accordion.faq-accordion .accordion-content{
  border:0;background:transparent;color:var(--text-2);
  padding:0 22px 22px;font-size:15.5px;line-height:1.8;
}

/* ============ 表单 ============ */
.form-section{background:var(--ink-surface);position:relative;overflow:hidden}
.form-section::before{
  content:"";position:absolute;top:-140px;right:-100px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(74,107,255,.14),transparent 65%);pointer-events:none;
}
.form-layout{display:grid;grid-template-columns:1fr 1.9fr;gap:56px;position:relative;z-index:2}
.form-aside h2{font-size:32px;font-weight:700;line-height:1.32}
.form-aside h2::after{content:"";display:block;width:48px;height:2px;background:var(--primary);margin-top:18px;border-radius:2px}
.form-aside p{font-size:16px;color:var(--text-2);margin-top:18px}
.trust-list{margin-top:28px;display:flex;flex-direction:column;gap:16px}
.trust-list li{display:flex;align-items:center;gap:12px;font-size:15px;color:var(--text-2)}
.trust-list i{
  width:34px;height:34px;border-radius:10px;background:rgba(46,217,195,.10);
  color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:14px;flex:0 0 auto;
}
.form-card{
  background:var(--glass);border:1px solid rgba(255,255,255,.10);
  border-radius:var(--r-lg);padding:32px;backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);box-shadow:var(--sh-1);
}
.form-row{display:grid;grid-template-columns:1fr 1fr;gap:20px}
.field{margin-bottom:20px}
.field label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px;letter-spacing:.02em}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 16px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);border-radius:var(--r-md);
  color:var(--text-1);font-size:15px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field textarea{height:auto;min-height:118px;padding:14px 16px;line-height:1.75;resize:vertical}
.field select{appearance:none;background-image:url("data:image/svg+xml;charset=utf8,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath fill='%239FB0C9' d='M8 11L3 6h10z'/%3E%3C/svg%3E");background-repeat:no-repeat;background-position:right 16px center;background-size:14px;padding-right:42px}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);outline:none;
  box-shadow:0 0 0 3px rgba(46,217,195,.18);
}
.field.has-error input,.field.has-error select,.field.has-error textarea{border-color:var(--danger)}
.field-err{display:block;font-size:13px;color:var(--danger);margin-top:6px;min-height:18px}
.check-line{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-2);margin-bottom:20px}
.check-line input{width:18px;height:18px;margin-top:5px;accent-color:var(--primary);flex:0 0 auto}
.form-note{font-size:13px;color:var(--text-3);margin-top:14px;text-align:center;min-height:20px}
.form-note.is-ok{color:var(--primary)}

/* ============ 页脚 ============ */
.site-footer{background:#04070F;border-top:1px solid var(--line);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding-bottom:56px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-brand .brand-mark{width:36px;height:36px;font-size:17px}
.footer-about{font-size:14.5px;color:var(--text-2);line-height:1.8;margin-bottom:18px}
.footer-contact{font-size:14px;color:var(--text-3);line-height:1.9}
.footer h4{font-size:15px;font-weight:600;color:var(--text-1);margin-bottom:18px;letter-spacing:.02em}
.footer-links li{margin-bottom:11px}
.footer-links a{font-size:14.5px;color:var(--text-2);display:inline-block;transition:color .2s ease-out,transform .2s ease-out}
.footer-links a:hover{color:var(--primary);transform:translateX(2px)}
.footer-cta-box{background:var(--ink-card);border:1px solid var(--line);border-radius:var(--r-lg);padding:22px}
.footer-cta-box p{font-size:14px;color:var(--text-2);margin-bottom:16px;line-height:1.75}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-3);line-height:1.8}
.to-top{
  width:44px;height:44px;border-radius:50%;
  border:1px solid rgba(46,217,195,.5);background:rgba(46,217,195,.08);
  color:var(--primary);display:flex;align-items:center;justify-content:center;
  cursor:pointer;transition:background-color .2s ease-out,transform .2s ease-out;
}
.to-top:hover{background:rgba(46,217,195,.18);transform:translateY(-2px)}

/* ============ 响应式 ============ */
@media screen and (max-width:1280px){
  .grid-container{max-width:1200px;padding-left:32px;padding-right:32px}
  .hero h1{font-size:44px}
  .svc-card--third{grid-column:span 4}
  .svc-card--wide{grid-column:span 6}
  .svc-card--main{grid-column:span 6}
}
@media screen and (max-width:1024px){
  :root{--sec-pad:72px}
  .nav-links{display:none}
  .nav-actions .btn-ghost{display:none}
  .nav-toggle{display:flex}
  .hero{padding:130px 0 64px;min-height:auto}
  .hero h1{font-size:38px}
  .hero-sub{font-size:18px}
  .metrics{grid-template-columns:repeat(2,1fr)}
  .svc-grid{grid-template-columns:repeat(6,1fr)}
  .svc-card--main{grid-column:span 6}
  .svc-card--wide{grid-column:span 3}
  .svc-card--third{grid-column:span 3}
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .proof-grid{grid-template-columns:1fr 1fr}
  .form-layout{grid-template-columns:1fr;gap:36px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .section-head h2{font-size:30px}
}
@media screen and (max-width:640px){
  :root{--sec-pad:56px}
  body{font-size:16px}
  .grid-container{padding-left:20px;padding-right:20px}
  .brand-sub{display:none}
  .brand-name{font-size:17px}
  .hero{padding:118px 0 48px;min-height:520px}
  .hero h1{font-size:29px}
  .hero-sub{font-size:16.5px}
  .hero-actions{flex-direction:column;align-items:stretch;gap:12px}
  .hero-actions .btn{width:100%}
  .metrics{grid-template-columns:repeat(2,1fr);gap:14px}
  .metric-card{padding:18px}
  .metric-num{font-size:26px}
  .section-head h2{font-size:23px}
  .section-head p{font-size:16px}
  .section-head--split{flex-direction:column;align-items:flex-start;gap:18px}
  .svc-grid{grid-template-columns:1fr}
  .svc-card--main{grid-column:span 1;flex-direction:column}
  .svc-card--main .svc-main-media{min-height:200px}
  .svc-card--wide,.svc-card--third{grid-column:span 1}
  .compare-wrap{grid-template-columns:1fr}
  .post-grid{grid-template-columns:1fr}
  .proof-grid{grid-template-columns:1fr}
  .form-card{padding:22px}
  .form-row{grid-template-columns:1fr;gap:0}
  .footer-grid{grid-template-columns:1fr;gap:34px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .form-card .btn-primary{width:100%}
}

/* roulang page: article */
:root{
  --ink-base:#060B16;
  --ink-surface:#0B1220;
  --ink-card:#101A2E;
  --glass:rgba(255,255,255,.045);
  --primary:#2ED9C3;
  --primary-deep:#17A99A;
  --secondary:#4A6BFF;
  --accent:#FFC24B;
  --danger:#FF6B6B;
  --text-1:#EAF2FF;
  --text-2:#9FB0C9;
  --text-3:#6C7E99;
  --line:rgba(255,255,255,.08);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(0,0,0,.28);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(46,217,195,.50),0 10px 30px rgba(46,217,195,.25);
  --grad:linear-gradient(135deg,#2ED9C3 0%,#4A6BFF 100%);
  --font:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',system-ui,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;scroll-padding-top:96px}
body{
  margin:0;padding-top:72px;
  background:var(--ink-base);color:var(--text-1);
  font-family:var(--font);font-size:16px;line-height:1.85;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out,background .2s ease-out,border-color .2s ease-out,transform .2s ease-out}
a:hover{color:#7FF0E1}
ul,ol{margin:0}
button{font-family:inherit}
:focus-visible{outline:2px solid #CFFCF5;outline-offset:2px}
h1,h2,h3,h4,p{margin:0}
.num{font-variant-numeric:tabular-nums}

body .grid-container{max-width:1200px;padding-left:40px;padding-right:40px;margin-left:auto;margin-right:auto}
@media screen and (min-width:1280px){body .grid-container{max-width:1280px}}
@media screen and (max-width:640px){body .grid-container{padding-left:20px;padding-right:20px}}
body .grid-x{margin-left:-12px;margin-right:-12px}
body .grid-x>.cell{padding-left:12px;padding-right:12px}
@media screen and (max-width:640px){
  body .grid-x{margin-left:-8px;margin-right:-8px}
  body .grid-x>.cell{padding-left:8px;padding-right:8px}
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:12px 26px;border-radius:var(--r-md);
  font-size:15px;font-weight:700;letter-spacing:.01em;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,border-color .2s ease-out,filter .2s ease-out;
}
.btn-primary{background:var(--grad);color:#05121A;box-shadow:0 6px 20px rgba(46,217,195,.18)}
.btn-primary:hover{color:#05121A;transform:translateY(-2px);box-shadow:var(--glow);filter:brightness(1.05)}
.btn-primary:active{transform:none;box-shadow:none}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.22);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--primary);background:rgba(46,217,195,.08);color:var(--text-1)}
.btn-sm{min-height:38px;padding:8px 18px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;transform:none;cursor:not-allowed}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary)}
.link-arrow i{transition:transform .2s ease-out}
.link-arrow:hover i{transform:translateX(4px)}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:200;
  background:rgba(6,11,22,.80);
  border-bottom:1px solid transparent;
  transition:background .2s ease-out,border-color .2s ease-out,backdrop-filter .2s ease-out;
}
.site-header.is-scrolled{
  background:rgba(255,255,255,.045);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text-1)}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:var(--r-md);
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:800;color:#05121A;background:var(--grad);box-shadow:var(--glow);
}
.brand-text{display:flex;flex-direction:column;line-height:1.3}
.brand-name{font-size:17px;font-weight:800;letter-spacing:-.01em}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.04em}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{position:relative;font-size:15px;color:var(--text-2);padding:6px 0}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;background:var(--primary);
  transform:scaleX(0);transform-origin:left;transition:transform .2s ease-out;
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after,.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--primary)}
.nav-links a.nav-pill{
  border:1px solid rgba(46,217,195,.45);border-radius:var(--r-pill);
  padding:7px 16px;color:var(--primary);
}
.nav-links a.nav-pill::after{display:none}
.nav-links a.nav-pill:hover{background:rgba(46,217,195,.08)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:44px;height:44px;align-items:center;justify-content:center;
  border-radius:var(--r-md);border:1px solid var(--line);background:rgba(255,255,255,.04);
  color:var(--text-1);font-size:17px;cursor:pointer;
}
.nav-close{
  display:none;position:absolute;top:16px;right:20px;width:44px;height:44px;
  align-items:center;justify-content:center;border-radius:var(--r-md);
  border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text-1);font-size:18px;cursor:pointer;
}
.drawer-cta{display:none;width:100%}

/* ---------- 文章头部 ---------- */
.article-head{
  position:relative;overflow:hidden;
  padding:56px 0 48px;
  background-image:linear-gradient(180deg,rgba(6,11,22,.86),rgba(6,11,22,.96)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
}
.article-head::after{
  content:"";position:absolute;top:-220px;right:-160px;width:600px;height:600px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,217,195,.12) 0%,rgba(46,217,195,0) 70%);
  pointer-events:none;
}
.article-head .grid-container{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-2);margin-bottom:20px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb i{font-size:10px;color:var(--text-3)}
.breadcrumb .current{color:var(--primary)}
.meta-row{display:flex;flex-wrap:wrap;align-items:center;gap:14px;margin-bottom:18px}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:var(--r-pill);
  background:rgba(46,217,195,.12);color:var(--primary);
  font-size:13px;letter-spacing:.02em;white-space:nowrap;
}
.meta-item{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-3)}
.article-head h1{
  font-size:44px;font-weight:800;line-height:1.22;letter-spacing:-.02em;
  color:var(--text-1);max-width:900px;
}
.head-rule{width:64px;height:3px;border-radius:2px;background:var(--grad);margin-top:26px}

/* ---------- 正文 ---------- */
.article-main{padding:64px 0 72px;background:var(--ink-base)}
.article-panel{position:relative}
.article-content{
  max-width:760px;font-size:17px;line-height:1.9;color:var(--text-2);
  padding-top:32px;border-top:1px solid var(--line);
}
.article-content>*:first-child{margin-top:0}
.article-content p{margin:0 0 1.25em}
.article-content strong,.article-content b{color:var(--text-1);font-weight:600}
.article-content h2{
  position:relative;font-size:26px;font-weight:700;line-height:1.35;color:var(--text-1);
  margin:46px 0 18px;padding-left:18px;
}
.article-content h2::before{
  content:"";position:absolute;left:0;top:.28em;width:4px;height:.95em;border-radius:2px;background:var(--primary);
}
.article-content h3{
  display:inline-block;font-size:19px;font-weight:600;color:var(--primary);
  background:rgba(46,217,195,.10);border-radius:var(--r-sm);padding:3px 12px;margin:32px 0 14px;
}
.article-content ul,.article-content ol{list-style:none;padding-left:0;margin:0 0 1.3em}
.article-content li{position:relative;padding-left:22px;margin-bottom:.6em}
.article-content ul>li::before{
  content:"";position:absolute;left:0;top:.72em;width:7px;height:7px;border-radius:2px;background:var(--primary);
}
.article-content ol{counter-reset:art-ol}
.article-content ol>li{counter-increment:art-ol}
.article-content ol>li::before{
  content:counter(art-ol);position:absolute;left:0;top:.15em;
  font-size:13px;font-weight:700;color:var(--accent);font-variant-numeric:tabular-nums;
}
.article-content blockquote{
  margin:26px 0;padding:18px 22px;border-left:3px solid var(--primary);
  background:rgba(255,255,255,.03);border-radius:0 var(--r-md) var(--r-md) 0;color:var(--text-1);
}
.article-content blockquote p:last-child{margin-bottom:0}
.article-content img{border-radius:var(--r-md);margin:10px 0 6px;width:100%;height:auto}
.article-content figure{margin:24px 0}
.article-content figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:8px}
.article-content a{color:var(--primary);text-decoration:underline;text-decoration-color:rgba(46,217,195,.4);text-underline-offset:3px}
.article-content table{
  display:block;width:100%;overflow-x:auto;margin:26px 0;
  border:1px solid var(--line);border-radius:var(--r-md);border-collapse:collapse;
  font-size:15px;line-height:1.7;
}
.article-content thead th{background:rgba(46,217,195,.10);color:var(--text-1);font-weight:600}
.article-content th,.article-content td{
  padding:12px 16px;border-bottom:1px solid var(--line);text-align:left;white-space:nowrap;
}
.article-content tbody tr:nth-child(even){background:rgba(255,255,255,.02)}
.article-content hr{border:0;border-top:1px solid var(--line);margin:36px 0}

.empty-state{
  text-align:center;padding:72px 24px;border:1px dashed var(--line);border-radius:var(--r-lg);
  background:var(--ink-card);
}
.empty-state i{font-size:30px;color:var(--primary);margin-bottom:16px;display:block}
.empty-state h2{font-size:20px;color:var(--text-1);margin-bottom:10px;font-weight:700}
.empty-state p{color:var(--text-2);margin-bottom:22px}

.article-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin:44px 0 0;max-width:760px}
.article-tags span.label{font-size:13px;color:var(--text-3)}
.tag{
  display:inline-flex;align-items:center;padding:5px 14px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.03);
  font-size:13px;color:var(--text-2);
}
.tag:hover{border-color:rgba(46,217,195,.45);color:var(--primary)}
.article-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;max-width:760px}

/* ---------- 目录 ---------- */
.toc-card{
  position:sticky;top:104px;padding:24px;
  background:var(--glass);border:1px solid rgba(255,255,255,.10);border-radius:var(--r-lg);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);box-shadow:var(--sh-1);
}
.toc-card h2{font-size:15px;font-weight:700;color:var(--text-1);margin-bottom:14px;letter-spacing:.02em}
.toc-card h2::after{content:"";display:block;width:28px;height:2px;border-radius:2px;background:var(--primary);margin-top:10px}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:52vh;overflow:auto}
.toc-link{
  display:block;padding:8px 10px;border-radius:var(--r-sm);
  font-size:14px;line-height:1.6;color:var(--text-2);
  border-left:2px solid transparent;
}
.toc-link:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.toc-link.is-current{color:var(--primary);border-left-color:var(--primary);background:rgba(46,217,195,.08)}
.aside-note{margin-top:20px;padding-top:18px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3);line-height:1.8}

/* ---------- 相关推荐 ---------- */
.related{padding:72px 0;background:var(--ink-surface);border-top:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px}
.section-head h2{font-size:32px;font-weight:700;line-height:1.3;color:var(--text-1)}
.section-head h2::after{content:"";display:block;width:48px;height:2px;border-radius:2px;background:var(--primary);margin-top:14px}
.section-head p{font-size:15px;color:var(--text-2);margin-top:12px;max-width:560px}
.card-grid{display:flex;flex-wrap:wrap}
.post-item{
  display:flex;flex-direction:column;height:100%;
  background:var(--ink-card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
  margin-bottom:24px;
}
.post-item:hover{transform:translateY(-4px);box-shadow:var(--sh-2);border-color:rgba(46,217,195,.40)}
.post-cover{position:relative;display:block;aspect-ratio:16/10;background:rgba(255,255,255,.03);overflow:hidden}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.post-item:hover .post-cover img{transform:scale(1.03)}
.post-badge{
  position:absolute;top:12px;left:12px;padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(6,11,22,.72);color:var(--primary);font-size:13px;letter-spacing:.02em;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.post-title{font-size:18px;font-weight:600;line-height:1.5;color:var(--text-1);margin-bottom:10px}
.post-item:hover .post-title{color:var(--primary)}
.post-excerpt{font-size:14px;line-height:1.8;color:var(--text-2);margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:14px;border-top:1px solid var(--line)}
.post-date{display:inline-flex;align-items:center;gap:6px;font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums}
.post-link{font-size:14px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:6px}
.post-link i{transition:transform .2s ease-out}
.post-item:hover .post-link i{transform:translateX(4px)}

/* ---------- CTA ---------- */
.cta-band{padding:0 0 88px;background:var(--ink-surface)}
.cta-box{
  position:relative;overflow:hidden;padding:48px;
  border-radius:var(--r-lg);border:1px solid var(--line);background:var(--ink-card);box-shadow:var(--sh-2);
}
.cta-box::after{
  content:"";position:absolute;top:-160px;right:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(46,217,195,.14) 0%,rgba(46,217,195,0) 70%);
}
.cta-inner{position:relative;z-index:2;display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:28px}
.cta-inner h2{font-size:30px;font-weight:700;line-height:1.35;color:var(--text-1);max-width:620px}
.cta-inner p{margin-top:12px;font-size:15px;color:var(--text-2);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px}

/* ---------- 页脚 ---------- */
.site-footer{background:#04070F;border-top:1px solid var(--line);padding-top:72px}
.footer-grid{display:flex;flex-wrap:wrap;margin-left:-16px;margin-right:-16px}
.footer{flex:0 0 25%;max-width:25%;padding:0 16px 40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:17px;border-radius:10px}
.footer-brand .brand-name{font-size:16px;font-weight:800;color:var(--text-1)}
.footer-about{font-size:14px;line-height:1.9;color:var(--text-2);margin-bottom:14px}
.footer-contact{font-size:13px;line-height:1.9;color:var(--text-3)}
.footer h4{font-size:15px;font-weight:700;color:var(--text-1);margin-bottom:18px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:10px}
.footer-links a{display:inline-block;font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--primary);transform:translateX(2px)}
.footer-cta-box{
  padding:24px;border-radius:var(--r-lg);border:1px solid var(--line);
  background:var(--glass);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
}
.footer-cta-box p{font-size:14px;line-height:1.9;color:var(--text-2);margin-bottom:16px}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0 28px;border-top:1px solid var(--line);
}
.footer-bottom p{font-size:13px;color:var(--text-3)}
.to-top{
  width:44px;height:44px;border-radius:50%;border:1px solid rgba(46,217,195,.5);
  background:transparent;color:var(--primary);font-size:15px;cursor:pointer;
  transition:background .2s ease-out,transform .2s ease-out;
}
.to-top:hover{background:rgba(46,217,195,.10);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1279px){
  .toc-card{position:static;margin-bottom:32px}
  body .grid-container{max-width:1024px}
}
@media screen and (max-width:1023px){
  .article-head h1{font-size:36px}
  .nav-links{
    position:fixed;inset:0;z-index:300;display:none;flex-direction:column;align-items:flex-start;
    justify-content:flex-start;gap:0;padding:88px 24px 110px;overflow-y:auto;
    background:var(--ink-base);
    background-image:radial-gradient(circle at 80% 8%,rgba(46,217,195,.10) 0%,rgba(46,217,195,0) 55%);
  }
  .nav-links.is-open{display:flex}
  .nav-links a{width:100%;font-size:18px;line-height:56px;padding:0;border-bottom:1px solid var(--line)}
  .nav-links a::after{display:none}
  .nav-links a.nav-pill{border:0;border-bottom:1px solid var(--line);border-radius:0;padding:0 0 0 0;line-height:56px}
  .nav-close{display:flex}
  .drawer-cta{display:inline-flex;margin-top:26px;line-height:1.2;font-size:16px}
  .nav-toggle{display:flex}
  .nav-actions .btn-primary{display:none}
  .footer{flex:0 0 50%;max-width:50%}
  .related{padding:64px 0}
  .cta-band{padding-bottom:64px}
}
@media screen and (max-width:640px){
  body{padding-top:64px}
  .nav-bar{height:64px}
  .brand-mark{width:38px;height:38px;flex:0 0 38px;font-size:18px}
  .brand-name{font-size:15px}
  .brand-sub{display:none}
  .article-head{padding:36px 0 34px}
  .article-head h1{font-size:27px}
  .article-main{padding:40px 0 48px}
  .article-content{font-size:16px;padding-top:24px}
  .article-content h2{font-size:22px;margin:34px 0 14px}
  .article-content h3{font-size:18px}
  .related{padding:48px 0}
  .section-head h2{font-size:24px}
  .post-item{margin-bottom:18px}
  .cta-box{padding:28px 22px}
  .cta-inner h2{font-size:22px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .footer{flex:0 0 100%;max-width:100%}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .article-actions .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --ink-base:#060B16;
  --ink-surface:#0B1220;
  --ink-card:#101A2E;
  --glass:rgba(255,255,255,.045);
  --primary:#2ED9C3;
  --primary-deep:#17A99A;
  --secondary:#4A6BFF;
  --accent:#FFC24B;
  --danger:#FF6B6B;
  --text-1:#EAF2FF;
  --text-2:#9FB0C9;
  --text-3:#6C7E99;
  --line:rgba(255,255,255,.08);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(0,0,0,.28);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(46,217,195,.50), 0 10px 30px rgba(46,217,195,.25);
  --grad:linear-gradient(135deg,#2ED9C3,#4A6BFF);
  --ease:200ms ease-out;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--ink-base);
  color:var(--text-2);
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease),transform var(--ease);}
a:hover{color:var(--primary);}
button{font-family:inherit;}
h1,h2,h3,h4{color:var(--text-1);margin:0;font-weight:700;line-height:1.3;}
p{margin:0 0 1.15em;}
ul,ol{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid #CFFCF5;outline-offset:2px;}
::selection{background:rgba(46,217,195,.28);color:#fff;}

.grid-container{max-width:1200px;margin:0 auto;padding-left:40px;padding-right:40px;width:100%;}
@media (min-width:1440px){.grid-container{max-width:1280px;}}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-md);border:1px solid transparent;
  font-size:15px;font-weight:700;letter-spacing:.01em;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),opacity var(--ease);
  line-height:1.2;text-align:center;
}
.btn-primary{background:var(--grad);color:#05121A;}
.btn-primary:hover{color:#05121A;transform:translateY(-2px);box-shadow:var(--glow);filter:brightness(1.05);}
.btn-primary:active{transform:none;box-shadow:none;filter:none;}
.btn-ghost{background:transparent;color:var(--text-1);border-color:rgba(255,255,255,.22);}
.btn-ghost:hover{color:var(--primary);border-color:var(--primary);background:rgba(46,217,195,.08);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;box-shadow:none;}

.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);
  background:rgba(46,217,195,.12);color:var(--primary);
  font-size:13px;letter-spacing:.02em;line-height:1.6;
}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.02em;color:var(--primary);margin-bottom:16px;
}
.eyebrow::before{content:'';width:6px;height:6px;background:var(--primary);border-radius:2px;}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
}
.site-header.is-scrolled{
  background:rgba(6,11,22,.74);
  -webkit-backdrop-filter:blur(16px);
  backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-bar{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;}
.brand{display:flex;align-items:center;gap:12px;color:var(--text-1);}
.brand:hover{color:var(--text-1);}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:var(--r-md);
  background:var(--grad);color:#05121A;
  display:flex;align-items:center;justify-content:center;
  font-size:20px;font-weight:800;
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-name{font-size:16px;font-weight:700;color:var(--text-1);white-space:nowrap;}
.brand-sub{font-size:12px;color:var(--text-3);letter-spacing:.02em;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-links a{
  position:relative;display:inline-flex;align-items:center;
  padding:10px 12px;border-radius:var(--r-sm);
  font-size:15px;color:var(--text-2);white-space:nowrap;
}
.nav-links a:hover{color:var(--text-1);background:rgba(255,255,255,.04);}
.nav-links a.is-active{color:var(--primary);}
.nav-links a.is-active::after{
  content:'';position:absolute;left:12px;right:12px;bottom:2px;height:2px;
  background:var(--primary);border-radius:2px;
}
.nav-links a.nav-pill{
  border:1px solid rgba(46,217,195,.35);border-radius:var(--r-pill);
  padding:8px 16px;color:var(--primary);
}
.nav-links a.nav-pill:hover{background:rgba(46,217,195,.10);}
.nav-links a.nav-pill.is-active::after{content:none;}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text-1);font-size:18px;cursor:pointer;align-items:center;justify-content:center;
}

/* ---------- 内页头部 ---------- */
.page-hero{
  position:relative;
  padding:150px 0 72px;
  background-image:linear-gradient(180deg,rgba(6,11,22,.88),rgba(6,11,22,.97)),url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:'';position:absolute;top:-160px;right:-120px;width:600px;height:600px;
  background:radial-gradient(circle,rgba(46,217,195,.12),transparent 68%);
  pointer-events:none;
}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:13px;color:var(--text-2);margin-bottom:16px;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb span.sep{color:var(--text-3);}
.breadcrumb .current{color:var(--primary);}
.page-hero h1{
  font-size:48px;font-weight:800;line-height:1.2;letter-spacing:-.02em;
  max-width:860px;
}
.page-hero h1 em{font-style:normal;color:var(--primary);}
.hero-lead{
  font-size:20px;line-height:1.7;color:var(--text-2);
  max-width:760px;margin-top:20px;
}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:28px;}

/* ---------- 图文叙事 ---------- */
.flow-section{padding:96px 0;background:var(--ink-base);}
.flow-inner{display:flex;align-items:flex-start;gap:48px;}
.main-cell{flex:1 1 auto;min-width:0;}
.index-cell{flex:0 0 268px;min-width:0;}
.anchor-index{
  position:sticky;top:104px;
  background:var(--ink-card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);
}
.index-title{font-size:13px;color:var(--text-3);letter-spacing:.08em;margin-bottom:14px;}
.anchor-index a{
  display:block;padding:10px 12px;border-left:2px solid transparent;
  font-size:14px;color:var(--text-2);border-radius:0 var(--r-sm) var(--r-sm) 0;
}
.anchor-index a:hover{color:var(--text-1);background:rgba(255,255,255,.04);}
.anchor-index a.is-current{color:var(--primary);border-left-color:var(--primary);background:rgba(46,217,195,.08);}
.index-hint{
  margin-top:16px;padding-top:16px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);line-height:1.7;
}

.feature-row{
  display:flex;gap:32px;align-items:center;
  padding:32px;margin-bottom:32px;
  background:var(--ink-card);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--sh-1);scroll-margin-top:110px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.feature-row:hover{border-color:rgba(46,217,195,.40);box-shadow:var(--sh-2);}
.feature-row.is-reverse{flex-direction:row-reverse;}
.feature-media{flex:0 0 46%;border-radius:var(--r-lg);overflow:hidden;background:rgba(255,255,255,.03);}
.feature-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.feature-body{flex:1 1 auto;min-width:0;}
.feature-num{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:var(--r-sm);
  background:rgba(46,217,195,.10);color:var(--primary);
  font-size:14px;font-weight:700;font-variant-numeric:tabular-nums;
  margin-bottom:14px;
}
.feature-body h3{font-size:22px;font-weight:600;margin-bottom:12px;}
.feature-body p{font-size:16px;color:var(--text-2);margin-bottom:.9em;}
.feature-points{margin-top:16px;display:grid;gap:10px;}
.feature-points li{position:relative;padding-left:22px;font-size:14px;color:var(--text-2);line-height:1.7;}
.feature-points li::before{
  content:'';position:absolute;left:0;top:9px;width:8px;height:8px;
  background:var(--primary);border-radius:2px;
}
.feature-body .btn{margin-top:18px;}

/* ---------- CTA 条 ---------- */
.cta-band{
  background:var(--ink-surface);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:72px 0;position:relative;overflow:hidden;
}
.cta-band::after{
  content:'';position:absolute;top:-140px;left:-80px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(74,107,255,.10),transparent 70%);
  pointer-events:none;
}
.cta-band-inner{
  position:relative;z-index:2;
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-band h2{font-size:32px;font-weight:700;}
.cta-band p{margin:12px 0 0;max-width:640px;font-size:16px;color:var(--text-2);}
.cta-band-actions{display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- 互链卡片 ---------- */
.link-section{padding:96px 0;background:var(--ink-base);}
.sec-head{margin-bottom:40px;}
.sec-head h2{font-size:32px;font-weight:700;}
.sec-head h2::after{
  content:'';display:block;width:48px;height:2px;background:var(--primary);margin-top:16px;
}
.sec-head p{margin-top:16px;max-width:680px;color:var(--text-2);}
.link-card{
  display:flex;flex-direction:column;height:100%;
  padding:26px;border-radius:var(--r-lg);
  background:var(--ink-card);border:1px solid var(--line);box-shadow:var(--sh-1);
  color:var(--text-2);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.link-card:hover{transform:translateY(-4px);border-color:rgba(46,217,195,.40);box-shadow:var(--sh-2);color:var(--text-2);}
.link-card .card-icon{
  width:40px;height:40px;border-radius:var(--r-sm);
  background:rgba(46,217,195,.10);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:18px;margin-bottom:18px;
}
.link-card h3{font-size:20px;font-weight:600;margin-bottom:10px;}
.link-card p{font-size:15px;color:var(--text-2);line-height:1.75;margin-bottom:18px;}
.link-card .link-more{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:700;color:var(--primary);
}
.link-card:hover .link-more i{transform:translateX(4px);}
.link-card .link-more i{transition:transform var(--ease);}

/* ---------- FAQ ---------- */
.faq-section{padding:96px 0;background:var(--ink-surface);}
.faq-accordion{margin:0;background:transparent;border:0;}
.faq-accordion .accordion-item{
  background:transparent;border:0;border-left:3px solid var(--line);
  margin-bottom:14px;transition:border-color var(--ease),background var(--ease);
}
.faq-accordion .accordion-item.is-active{
  border-left-color:var(--primary);background:rgba(46,217,195,.06);
}
.faq-accordion .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 20px;font-size:17px;font-weight:600;color:var(--text-1);
  border:0;background:transparent;
}
.faq-accordion .accordion-title:hover,.faq-accordion .accordion-title:focus{
  background:transparent;color:var(--primary);
}
.faq-accordion .accordion-title::before{content:none;display:none;}
.faq-icon{position:relative;flex:0 0 16px;width:16px;height:16px;}
.faq-icon::before,.faq-icon::after{
  content:'';position:absolute;background:var(--primary);border-radius:2px;transition:transform var(--ease);
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px;}
.faq-icon::after{left:7px;top:0;width:2px;height:16px;}
.faq-accordion .accordion-item.is-active .faq-icon::after{transform:scaleY(0);}
.faq-accordion .accordion-content{
  padding:0 20px 18px;border:0;background:transparent;color:var(--text-2);
}
.faq-accordion .accordion-content p{font-size:15px;line-height:1.8;margin:0;color:var(--text-2);}

/* ---------- 表单 ---------- */
.apply-section{
  position:relative;padding:96px 0;background:var(--ink-surface);overflow:hidden;
}
.apply-section::after{
  content:'';position:absolute;top:-160px;right:-120px;width:520px;height:520px;
  background:radial-gradient(circle,rgba(46,217,195,.10),transparent 70%);pointer-events:none;
}
.apply-section .grid-container{position:relative;z-index:2;}
.apply-points{margin-top:28px;display:grid;gap:16px;}
.apply-points li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2);}
.apply-points i{color:var(--primary);margin-top:5px;font-size:14px;}
.apply-form{
  background:var(--ink-card);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:28px;box-shadow:var(--sh-1);
}
.field{margin-bottom:18px;}
.field label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px;}
.field input[type="text"],
.field input[type="tel"],
.field input[type="email"],
.field select,
.field textarea{
  width:100%;padding:12px 14px;min-height:48px;
  background:rgba(255,255,255,.04);border:1px solid var(--line);border-radius:var(--r-md);
  color:var(--text-1);font-size:15px;font-family:inherit;
  transition:border-color var(--ease),box-shadow var(--ease);
  margin:0;box-shadow:none;
}
.field textarea{min-height:120px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,217,195,.18);outline:none;
}
.field select{appearance:none;-webkit-appearance:none;background-image:none;}
.field select option{background:var(--ink-card);color:var(--text-1);}
.field-error{display:block;min-height:16px;font-size:13px;color:var(--danger);margin-top:6px;}
.field.has-error input,.field.has-error textarea,.field.has-error select{border-color:var(--danger);}
.checkbox-row{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-2);}
.checkbox-row input[type="checkbox"]{margin-top:5px;width:16px;height:16px;accent-color:var(--primary);}
.form-note{font-size:13px;color:var(--text-3);margin-top:14px;}
.form-success{
  display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-md);
  background:rgba(46,217,195,.10);border:1px solid rgba(46,217,195,.35);
  color:var(--primary);font-size:14px;
}
.form-success.is-visible{display:block;}

/* ---------- 模态 ---------- */
.reveal.feature-modal{
  background:var(--ink-card);border:1px solid rgba(46,217,195,.28);
  border-radius:var(--r-lg);box-shadow:var(--sh-2);padding:32px;
}
.reveal.feature-modal h2{font-size:24px;margin-bottom:16px;}
.reveal.feature-modal ul{margin-bottom:20px;}
.reveal.feature-modal li{
  position:relative;padding-left:22px;font-size:15px;color:var(--text-2);line-height:1.8;
}
.reveal.feature-modal li::before{
  content:'';position:absolute;left:0;top:11px;width:8px;height:8px;background:var(--primary);border-radius:2px;
}
.reveal.feature-modal .close-button{
  position:absolute;top:14px;right:14px;width:44px;height:44px;
  display:flex;align-items:center;justify-content:center;
  background:transparent;border:1px solid var(--line);border-radius:var(--r-md);
  color:var(--text-2);cursor:pointer;font-size:16px;
}
.reveal.feature-modal .close-button:hover{color:var(--primary);border-color:var(--primary);}
.reveal-overlay{background:rgba(3,6,12,.72);}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#04070F;border-top:1px solid var(--line);
  padding:72px 0 28px;color:var(--text-2);
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-brand .brand-mark{width:36px;height:36px;flex:0 0 36px;font-size:18px;border-radius:10px;}
.footer-brand .brand-name{font-size:16px;font-weight:700;color:var(--text-1);}
.footer-about{font-size:14px;line-height:1.8;color:var(--text-2);max-width:360px;}
.footer-contact{font-size:13px;line-height:1.9;color:var(--text-3);}
.site-footer h4{font-size:15px;color:var(--text-1);margin-bottom:18px;font-weight:600;}
.footer-links li{margin-bottom:10px;}
.footer-links a{font-size:14px;color:var(--text-2);display:inline-block;}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-cta-box{
  background:var(--ink-card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;box-shadow:var(--sh-1);
}
.footer-cta-box p{font-size:14px;color:var(--text-2);margin-bottom:16px;}
.footer-bottom{
  margin-top:56px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--text-3);margin:0;}
.to-top{
  width:44px;height:44px;border-radius:50%;
  background:transparent;border:1px solid rgba(46,217,195,.45);color:var(--primary);
  display:flex;align-items:center;justify-content:center;cursor:pointer;
  transition:background var(--ease),transform var(--ease);
}
.to-top:hover{background:rgba(46,217,195,.12);transform:translateY(-2px);}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .footer-grid{grid-template-columns:1.5fr 1fr 1fr;gap:32px;}
  .footer-grid > .footer:last-child{grid-column:span 3;}
}
@media (max-width:1023px){
  .grid-container{padding-left:28px;padding-right:28px;}
  .nav-links{
    position:fixed;top:0;left:0;right:0;bottom:0;z-index:90;
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:0;padding:84px 24px 96px;
    background:radial-gradient(circle at 80% 0%,rgba(46,217,195,.10),transparent 55%),var(--ink-base);
    transform:translateY(-100%);opacity:0;visibility:hidden;
    transition:transform var(--ease),opacity var(--ease),visibility var(--ease);
    overflow-y:auto;
  }
  .nav-links.is-open{transform:translateY(0);opacity:1;visibility:visible;}
  .nav-links a{
    font-size:18px;line-height:56px;padding:0 12px;border-radius:var(--r-sm);
    border-bottom:1px solid var(--line);
  }
  .nav-links a.is-active::after{left:12px;right:auto;width:28px;bottom:8px;}
  .nav-links a.nav-pill{
    margin-top:20px;border-radius:var(--r-md);line-height:48px;
    justify-content:center;border:1px solid rgba(46,217,195,.35);
  }
  .nav-toggle{display:flex;}
  .nav-actions .btn-primary{display:none;}
  .page-hero{padding:120px 0 56px;}
  .page-hero h1{font-size:34px;}
  .hero-lead{font-size:18px;}
  .flow-section,.link-section,.faq-section,.apply-section{padding:72px 0;}
  .flow-inner{flex-direction:column;gap:28px;}
  .index-cell{width:100%;flex:0 0 auto;order:-1;}
  .anchor-index{
    position:static;display:flex;gap:10px;overflow-x:auto;
    padding:12px;border-radius:var(--r-md);
  }
  .anchor-index .index-title,.anchor-index .index-hint{display:none;}
  .anchor-index a{
    border-left:0;border:1px solid var(--line);border-radius:var(--r-pill);
    padding:8px 16px;white-space:nowrap;font-size:13px;
  }
  .anchor-index a.is-current{border-color:var(--primary);background:rgba(46,217,195,.10);}
  .feature-row,.feature-row.is-reverse{flex-direction:column;align-items:stretch;padding:24px;}
  .feature-media{flex:0 0 auto;width:100%;}
  .cta-band h2,.sec-head h2{font-size:26px;}
  .cta-band-actions{width:100%;}
  .cta-band-actions .btn{flex:1 1 auto;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .footer-grid > .footer:last-child{grid-column:span 2;}
}
@media (max-width:639px){
  .grid-container{padding-left:20px;padding-right:20px;}
  .brand-sub{display:none;}
  .brand-name{font-size:15px;}
  .page-hero{padding:110px 0 48px;}
  .page-hero h1{font-size:28px;}
  .hero-lead{font-size:17px;}
  .flow-section,.link-section,.faq-section,.apply-section,.cta-band{padding:56px 0;}
  .feature-body h3{font-size:18px;}
  .cta-band-inner{flex-direction:column;align-items:flex-start;}
  .cta-band-actions{flex-direction:column;width:100%;}
  .cta-band-actions .btn{width:100%;}
  .apply-form{padding:20px;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-grid > .footer:last-child{grid-column:span 1;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .reveal.feature-modal{padding:24px;}
}

/* roulang page: category3 */
:root{
  --ink-base:#060B16;
  --ink-surface:#0B1220;
  --ink-card:#101A2E;
  --glass:rgba(255,255,255,.045);
  --primary:#2ED9C3;
  --primary-deep:#17A99A;
  --secondary:#4A6BFF;
  --accent:#FFC24B;
  --danger:#FF6B6B;
  --text-1:#EAF2FF;
  --text-2:#9FB0C9;
  --text-3:#6C7E99;
  --line:rgba(255,255,255,.08);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(0,0,0,.28);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(46,217,195,.50),0 10px 30px rgba(46,217,195,.25);
  --grad:linear-gradient(135deg,#2ED9C3,#4A6BFF);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--ink-base);
  color:var(--text-2);
  font-family:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,transform .2s ease-out}
a:hover{color:var(--primary)}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700}
p{margin:0 0 1.15em}
p:last-child{margin-bottom:0}
ul{margin:0;padding:0;list-style:none}
input,select,textarea,button{font-family:inherit;font-size:16px}
:focus-visible{outline:2px solid #CFFCF5;outline-offset:2px}
.grid-container{width:100%;max-width:1200px;margin:0 auto;padding-left:24px;padding-right:24px}
@media screen and (min-width:1440px){
  .grid-container{max-width:1280px}
}

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:120;
  height:72px;
  background:transparent;
  border-bottom:1px solid transparent;
  transition:background-color .2s ease-out,border-color .2s ease-out,backdrop-filter .2s ease-out;
}
.site-header.is-scrolled{
  background:var(--glass);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-bar{height:72px;display:flex;align-items:center;justify-content:space-between;gap:20px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text-1)}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;border-radius:12px;
  background:var(--grad);color:#05121A;
  font-weight:800;font-size:20px;
  display:flex;align-items:center;justify-content:center;
  box-shadow:0 6px 18px rgba(46,217,195,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25}
.brand-name{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--text-1)}
.brand-sub{font-size:11px;color:var(--text-3);letter-spacing:.02em}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-links a{
  position:relative;color:var(--text-2);font-size:15px;font-weight:500;
  padding:8px 0;transition:color .2s ease-out;
}
.nav-links a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--primary);border-radius:2px;transform:scaleX(0);transform-origin:left;
  transition:transform .2s ease-out;
}
.nav-links a:hover{color:var(--text-1)}
.nav-links a:hover::after{transform:scaleX(1)}
.nav-links a.is-active{color:var(--primary)}
.nav-links a.is-active::after{transform:scaleX(1)}
.nav-links a.nav-pill{
  padding:8px 16px;border:1px solid rgba(46,217,195,.42);border-radius:var(--r-pill);
  color:var(--primary);
}
.nav-links a.nav-pill::after{display:none}
.nav-links a.nav-pill:hover{background:rgba(46,217,195,.10)}
.nav-actions{display:flex;align-items:center;gap:12px}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:13px 26px;border-radius:var(--r-md);
  font-size:15px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,color .2s ease-out,filter .2s ease-out;
}
.btn-primary{background:var(--grad);color:#05121A;font-weight:700}
.btn-primary:hover{color:#05121A;transform:translateY(-2px);box-shadow:var(--glow);filter:brightness(1.05)}
.btn-primary:active{transform:none;box-shadow:none}
.btn-ghost{background:transparent;color:var(--text-1);border-color:rgba(255,255,255,.22)}
.btn-ghost:hover{color:var(--primary);border-color:var(--primary);background:rgba(46,217,195,.08)}
.btn-ghost:active{transform:none}
.btn-sm{min-height:40px;padding:10px 20px;font-size:14px}
.btn-block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;transform:none;cursor:not-allowed}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-md);
  background:rgba(255,255,255,.04);border:1px solid var(--line);color:var(--text-1);
  cursor:pointer;align-items:center;justify-content:center;font-size:18px;
}

/* ---------- 移动抽屉 ---------- */
.drawer{
  position:fixed;inset:0;z-index:200;
  background:var(--ink-base);
  background-image:radial-gradient(circle at 80% 12%,rgba(46,217,195,.10),transparent 55%);
  display:flex;flex-direction:column;
  transform:translateY(-100%);
  transition:transform .25s ease-out;
  visibility:hidden;
}
.drawer.is-open{transform:translateY(0);visibility:visible}
.drawer-head{display:flex;align-items:center;justify-content:space-between;padding:16px 20px;border-bottom:1px solid var(--line)}
.drawer-close{
  width:44px;height:44px;border-radius:var(--r-md);background:rgba(255,255,255,.04);
  border:1px solid var(--line);color:var(--text-1);font-size:18px;cursor:pointer;
}
.drawer-links{flex:1;padding:20px;display:flex;flex-direction:column}
.drawer-links a{
  color:var(--text-1);font-size:18px;line-height:56px;height:56px;
  border-bottom:1px solid var(--line);
}
.drawer-links a.is-active{color:var(--primary)}
.drawer-foot{padding:20px;border-top:1px solid var(--line)}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0;background:var(--ink-base)}
.section--alt{background:var(--ink-surface)}
.section-head{max-width:760px;margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.02em;color:var(--primary);margin-bottom:14px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:2px;background:var(--primary);display:inline-block}
h1{font-size:48px;font-weight:800;line-height:1.2;letter-spacing:-.02em}
h2{font-size:34px;font-weight:700;line-height:1.3;position:relative;padding-bottom:16px}
h2::after{content:"";position:absolute;left:0;bottom:0;width:48px;height:2px;background:var(--primary);border-radius:2px}
h3{font-size:21px;font-weight:600;line-height:1.4}
.lead{font-size:19px;color:var(--text-2);line-height:1.8;max-width:720px}
.section-desc{font-size:16px;color:var(--text-2);max-width:680px}

/* ---------- 页面头部 ---------- */
.page-hero{
  position:relative;
  padding:158px 0 76px;
  background-image:linear-gradient(180deg,rgba(6,11,22,.88),rgba(6,11,22,.96)),url(/assets/images/backpic/back-2.webp);
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";position:absolute;top:-120px;right:-100px;width:600px;height:600px;
  background:radial-gradient(circle,rgba(46,217,195,.12),transparent 62%);
  pointer-events:none;
}
.page-hero .grid-container{position:relative;z-index:2}
.breadcrumb{font-size:13px;color:var(--text-2);margin-bottom:16px;display:flex;flex-wrap:wrap;gap:6px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb span.sep{color:var(--text-3)}
.breadcrumb span.current{color:var(--primary)}
.page-hero h1{max-width:860px}
.page-hero .lead{margin-top:18px}

/* ---------- 步骤时间轴 ---------- */
.steps-layout{display:grid;grid-template-columns:minmax(0,1.45fr) minmax(0,1fr);gap:48px;align-items:start}
.steps{position:relative;padding-left:48px}
.steps::before{
  content:"";position:absolute;left:17px;top:14px;bottom:26px;width:2px;
  background:linear-gradient(180deg,var(--primary),rgba(46,217,195,.10));
  border-radius:2px;
}
.step{position:relative;padding-bottom:40px}
.step:last-child{padding-bottom:0}
.step-index{
  position:absolute;left:-48px;top:0;
  width:36px;height:36px;border-radius:50%;
  background:var(--ink-card);border:1px solid rgba(46,217,195,.45);
  color:var(--primary);font-weight:800;font-size:14px;
  display:flex;align-items:center;justify-content:center;
  font-variant-numeric:tabular-nums;
}
.step h3{margin-bottom:8px}
.step p{font-size:15.5px;margin-bottom:8px}
.step-meta{font-size:13px;color:var(--text-3);letter-spacing:.02em}
.steps-aside{position:sticky;top:100px}
.steps-aside figure{margin:0;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);background:var(--ink-card)}
.steps-aside img{width:100%;aspect-ratio:4/5;object-fit:cover}
.steps-aside figcaption{font-size:13px;color:var(--text-3);padding:14px 18px;border-top:1px solid var(--line)}
.aside-note{
  margin-top:20px;padding:22px 24px;border-radius:var(--r-lg);
  background:var(--ink-card);border:1px solid var(--line);box-shadow:var(--sh-1);
}
.aside-note h4{font-size:15px;margin-bottom:8px}
.aside-note p{font-size:14px;color:var(--text-2)}

/* ---------- 玻璃卡 ---------- */
.glass-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.glass-card{
  position:relative;padding:28px 26px;border-radius:var(--r-lg);
  background:rgba(0,0,0,.25);
  background-image:linear-gradient(160deg,rgba(255,255,255,.06),rgba(255,255,255,.02));
  border:1px solid rgba(255,255,255,.10);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh-1);
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.glass-card::before{content:"";position:absolute;top:0;left:26px;width:36px;height:2px;background:var(--primary);border-radius:2px}
.glass-card:hover{transform:translateY(-4px);border-color:rgba(46,217,195,.40)}
.card-icon{
  width:40px;height:40px;border-radius:10px;margin-bottom:18px;
  background:rgba(46,217,195,.10);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:17px;
}
.glass-card h3{margin-bottom:10px}
.glass-card p{font-size:15px}

/* ---------- FAQ ---------- */
.faq-accordion{background:transparent;border:none;display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.faq-accordion .accordion-item{
  background:var(--ink-card);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;box-shadow:var(--sh-1);transition:border-color .2s ease-out;
}
.faq-accordion .accordion-item:hover{border-color:rgba(46,217,195,.40)}
.faq-accordion .accordion-title{
  display:flex;align-items:center;gap:14px;
  background:transparent;border:none;border-left:3px solid rgba(46,217,195,.35);
  color:var(--text-1);font-size:17px;font-weight:600;line-height:1.6;
  padding:20px 52px 20px 20px;position:relative;
}
.faq-accordion .accordion-title:hover{background:rgba(255,255,255,.02)}
.faq-accordion .accordion-title::before{
  content:"+";position:absolute;right:20px;left:auto;top:50%;transform:translateY(-50%);
  font-size:20px;font-weight:400;color:var(--primary);line-height:1;margin:0;
}
.faq-accordion .accordion-item.is-active .accordion-title{
  border-left-color:var(--primary);background:rgba(46,217,195,.06);
}
.faq-accordion .accordion-item.is-active .accordion-title::before{content:"−"}
.faq-accordion .accordion-content{
  background:rgba(46,217,195,.04);border:none;border-top:1px solid var(--line);
  color:var(--text-2);padding:18px 24px 22px;
}
.faq-accordion .accordion-content p{font-size:15px;line-height:1.8}

/* ---------- 表单 ---------- */
.form-layout{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,2fr);gap:48px;align-items:start}
.form-trust{display:flex;flex-direction:column;gap:16px;margin-top:24px}
.form-trust li{display:flex;gap:12px;align-items:flex-start;font-size:15px;color:var(--text-2)}
.form-trust i{color:var(--primary);margin-top:5px;font-size:14px}
.form-panel{
  background:var(--ink-card);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--sh-2);
}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:20px}
.field{display:flex;flex-direction:column;gap:8px}
.field--full{grid-column:1 / -1}
.field label{font-size:14px;color:var(--text-1);font-weight:600}
.field input,.field select,.field textarea{
  width:100%;height:48px;padding:0 14px;border-radius:var(--r-md);
  background:rgba(255,255,255,.04);border:1px solid var(--line);
  color:var(--text-1);transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field textarea{height:auto;min-height:112px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(46,217,195,.18);
}
.field .error-slot{font-size:13px;color:var(--danger);min-height:18px;line-height:1.4}
.field.has-error input,.field.has-error textarea{border-color:var(--danger)}
.form-actions{grid-column:1 / -1;display:flex;flex-direction:column;gap:14px}
.form-hint{font-size:13px;color:var(--text-3)}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  background-image:linear-gradient(135deg,rgba(46,217,195,.14),rgba(74,107,255,.16)),url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  padding:64px 0;
}
.cta-inner{
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
}
.cta-inner h2{padding-bottom:0;font-size:30px;max-width:620px}
.cta-inner h2::after{display:none}
.cta-inner p{margin-top:12px;max-width:640px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}

/* ---------- 互链卡片 ---------- */
.link-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:24px}
.link-card{
  display:flex;flex-direction:column;gap:12px;
  padding:28px 26px;border-radius:var(--r-lg);
  background:var(--ink-card);border:1px solid var(--line);box-shadow:var(--sh-1);
  color:var(--text-2);transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.link-card:hover{transform:translateY(-4px);border-color:rgba(46,217,195,.40);box-shadow:var(--sh-2);color:var(--text-2)}
.link-card h3{color:var(--text-1);font-size:19px}
.link-card p{font-size:14.5px;color:var(--text-2)}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--primary);margin-top:auto}
.text-link i{transition:transform .2s ease-out;font-size:12px}
.link-card:hover .text-link i{transform:translateX(4px)}

/* ---------- 页脚 ---------- */
.site-footer{background:#04070F;border-top:1px solid var(--line);padding:72px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px}
.footer-about{font-size:14.5px;color:var(--text-2);max-width:340px}
.footer-contact{font-size:13.5px;color:var(--text-3);margin-top:16px;line-height:1.9}
.site-footer h4{font-size:15px;margin-bottom:18px;color:var(--text-1)}
.footer-links li{margin-bottom:12px}
.footer-links a{color:var(--text-2);font-size:14.5px;transition:color .2s ease-out,transform .2s ease-out;display:inline-block}
.footer-links a:hover{color:var(--primary);transform:translateX(-2px)}
.footer-cta-box{
  padding:22px;border-radius:var(--r-lg);
  background:rgba(46,217,195,.06);border:1px solid rgba(46,217,195,.22);
}
.footer-cta-box p{font-size:14px;color:var(--text-2);margin-bottom:16px}
.footer-bottom{
  margin-top:56px;padding:22px 0;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:20px;
}
.footer-bottom p{font-size:13px;color:var(--text-3);margin:0}
.to-top{
  width:44px;height:44px;border-radius:50%;
  background:transparent;border:1px solid rgba(46,217,195,.5);color:var(--primary);
  cursor:pointer;display:flex;align-items:center;justify-content:center;
  transition:background-color .2s ease-out,transform .2s ease-out,box-shadow .2s ease-out;
}
.to-top:hover{background:rgba(46,217,195,.12);transform:translateY(-2px);box-shadow:var(--glow)}

/* ---------- Reveal ---------- */
.reveal{
  background:var(--ink-card);border:1px solid var(--line);border-radius:var(--r-lg);
  color:var(--text-2);padding:32px;
}
.reveal h3{margin-bottom:10px}
.reveal .btn{margin-top:20px}
.reveal-overlay{background:rgba(4,7,15,.78)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1280px){
  .grid-container{padding-left:40px;padding-right:40px}
}
@media screen and (max-width:1024px){
  .nav-links{display:none}
  .nav-actions .btn-primary{display:none}
  .nav-toggle{display:inline-flex}
  h1{font-size:36px}
  h2{font-size:28px}
  .section{padding:72px 0}
  .page-hero{padding:130px 0 60px}
  .steps-layout{grid-template-columns:1fr;gap:40px}
  .steps-aside{position:static}
  .glass-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .faq-accordion{grid-template-columns:1fr}
  .form-layout{grid-template-columns:1fr;gap:32px}
  .link-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:32px}
}
@media screen and (max-width:768px){
  .grid-container{padding-left:20px;padding-right:20px}
  .site-header,.nav-bar{height:64px}
  .brand-sub{display:none}
  .brand-name{font-size:15px}
  h1{font-size:30px}
  h2{font-size:23px}
  h3{font-size:18px}
  .lead{font-size:17px}
  .section{padding:56px 0}
  .page-hero{padding:112px 0 52px}
  .steps{padding-left:40px}
  .steps::before{left:14px}
  .step-index{left:-40px;width:30px;height:30px;font-size:13px}
  .glass-grid{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .form-panel{padding:24px 20px}
  .cta-inner{flex-direction:column;align-items:flex-start}
  .cta-inner h2{font-size:24px}
  .cta-actions{width:100%}
  .cta-actions .btn{width:100%}
  .link-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .btn{min-height:46px}
}
@media screen and (max-width:520px){
  h1{font-size:28px}
  h2{font-size:22px}
  .page-hero{padding:104px 0 48px}
  .form-actions .btn{width:100%}
}

/* roulang page: category2 */
:root{
  --ink-base:#060B16;
  --ink-surface:#0B1220;
  --ink-card:#101A2E;
  --glass:rgba(255,255,255,.045);
  --primary:#2ED9C3;
  --primary-deep:#17A99A;
  --secondary:#4A6BFF;
  --accent:#FFC24B;
  --danger:#FF6B6B;
  --text-1:#EAF2FF;
  --text-2:#9FB0C9;
  --text-3:#6C7E99;
  --line:rgba(255,255,255,.08);
  --r-sm:8px;
  --r-md:12px;
  --r-lg:16px;
  --r-pill:999px;
  --sh-1:0 4px 16px rgba(0,0,0,.28);
  --sh-2:0 16px 40px rgba(0,0,0,.45);
  --glow:0 0 0 1px rgba(46,217,195,.50), 0 10px 30px rgba(46,217,195,.25);
  --font-stack:'PingFang SC','Hiragino Sans GB','Microsoft YaHei','Source Han Sans SC',system-ui,-apple-system,sans-serif;
  --ease:200ms ease-out;
  --header-h:72px;
}

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

html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}

body{
  margin:0;
  padding-top:var(--header-h);
  background:var(--ink-base);
  color:var(--text-2);
  font-family:var(--font-stack);
  font-size:16.5px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

h1,h2,h3,h4,h5,h6{
  margin:0 0 .6rem;
  font-family:var(--font-stack);
  color:var(--text-1);
  letter-spacing:-.01em;
}

p{margin:0 0 1.15em;}
p:last-child{margin-bottom:0;}
a{color:var(--primary);text-decoration:none;transition:color var(--ease);}
a:hover{color:var(--primary-deep);}
img{display:block;max-width:100%;height:auto;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;}
input,select,textarea{font-family:inherit;}

a:focus-visible,button:focus-visible,[tabindex]:focus-visible{
  outline:2px solid #CFFCF5;
  outline-offset:2px;
}

.grid-container{
  width:100%;
  max-width:1200px;
  margin-left:auto;
  margin-right:auto;
  padding-left:40px;
  padding-right:40px;
}

.section{padding:96px 0;position:relative;}
.section--surface{background:var(--ink-surface);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section--tight{padding-top:72px;padding-bottom:72px;}

.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.02em;
  color:var(--primary);
  margin-bottom:14px;
}
.eyebrow::before{
  content:"";
  width:6px;height:6px;
  background:var(--primary);
  border-radius:1px;
  flex-shrink:0;
}

.section-head{max-width:780px;margin-bottom:44px;}
.section-head h2{
  font-size:clamp(22px,3vw,34px);
  font-weight:700;
  line-height:1.3;
  margin:0;
}
.section-head h2::after{
  content:"";
  display:block;
  width:48px;height:2px;
  background:var(--primary);
  margin-top:16px;
}
.section-head p{margin-top:18px;font-size:16.5px;color:var(--text-2);line-height:1.85;}

/* ---------- header / nav ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  height:var(--header-h);
  display:flex;
  align-items:center;
  background:rgba(6,11,22,.88);
  border-bottom:1px solid transparent;
  transition:background var(--ease),border-color var(--ease),backdrop-filter var(--ease);
}
.site-header.is-scrolled{
  background:var(--glass);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom-color:var(--line);
}
.nav-bar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
}
.brand{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.brand:hover{color:var(--text-1);}
.brand-mark{
  width:40px;height:40px;
  border-radius:var(--r-md);
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#05121A;
  font-size:20px;font-weight:800;
  display:flex;align-items:center;justify-content:center;
  flex-shrink:0;
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-name{font-size:17px;font-weight:700;color:var(--text-1);letter-spacing:.01em;}
.brand-sub{font-size:12px;color:var(--text-3);letter-spacing:.02em;}

.nav-links{display:flex;align-items:center;gap:26px;flex-wrap:wrap;}
.nav-links a{
  position:relative;
  font-size:15px;
  color:var(--text-2);
  padding:6px 0;
  transition:color var(--ease);
}
.nav-links a::after{
  content:"";
  position:absolute;left:0;right:100%;bottom:0;
  height:2px;background:var(--primary);
  transition:right var(--ease);
}
.nav-links a:hover{color:var(--text-1);}
.nav-links a:hover::after,
.nav-links a.is-active::after{right:0;}
.nav-links a.is-active{color:var(--primary);font-weight:600;}
.nav-links a.nav-pill{
  border:1px solid rgba(46,217,195,.35);
  border-radius:var(--r-pill);
  padding:6px 16px;
  color:var(--primary);
  background:rgba(46,217,195,.07);
}
.nav-links a.nav-pill::after{display:none;}
.nav-links a.nav-pill:hover{background:rgba(46,217,195,.14);border-color:rgba(46,217,195,.6);}

.nav-actions{display:flex;align-items:center;gap:12px;flex-shrink:0;}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:13px 28px;
  border-radius:var(--r-md);
  border:1px solid transparent;
  font-size:15px;
  font-weight:700;
  letter-spacing:.01em;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease),filter var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#05121A;
}
.btn-primary:hover{
  color:#05121A;
  transform:translateY(-2px);
  box-shadow:var(--glow);
  filter:brightness(1.05);
}
.btn-primary:active{transform:none;box-shadow:none;filter:none;}
.btn-ghost{
  background:transparent;
  color:var(--text-1);
  border-color:rgba(255,255,255,.22);
}
.btn-ghost:hover{
  color:var(--text-1);
  border-color:var(--primary);
  background:rgba(46,217,195,.08);
}
.btn-sm{min-height:40px;padding:9px 18px;font-size:14px;}
.btn-block{width:100%;}
.btn[disabled],.btn.is-disabled{opacity:.4;box-shadow:none;transform:none;pointer-events:none;}

.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-md);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text-1);
  font-size:18px;
  align-items:center;justify-content:center;
}
.nav-toggle:hover{border-color:rgba(46,217,195,.5);color:var(--primary);}

/* ---------- mobile drawer (Foundation Reveal) ---------- */
.reveal.full{
  position:fixed;
  top:0;left:0;right:0;bottom:0;
  width:100%;height:100%;
  max-width:none;
  margin:0;border:0;border-radius:0;
  padding:0;
  overflow-y:auto;
  background:radial-gradient(circle at 85% 0%,rgba(46,217,195,.12),transparent 55%),var(--ink-base);
}
.reveal-overlay{background:rgba(4,7,15,.75);}
.mobile-nav{
  display:flex;
  flex-direction:column;
  min-height:100%;
  padding:20px 24px 32px;
}
.mobile-nav-head{
  display:flex;
  align-items:center;
  gap:12px;
  padding-bottom:20px;
  border-bottom:1px solid var(--line);
}
.mobile-nav .close-button{
  position:static;
  margin-left:auto;
  width:44px;height:44px;
  padding:0;
  display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:rgba(255,255,255,.04);
  color:var(--text-1);
  font-size:20px;
}
.mobile-nav .close-button:hover{color:var(--primary);border-color:rgba(46,217,195,.5);}
.mobile-links{display:flex;flex-direction:column;margin-top:12px;}
.mobile-links a{
  font-size:18px;
  line-height:56px;
  color:var(--text-1);
  border-bottom:1px solid var(--line);
  transition:color var(--ease),padding-left var(--ease);
}
.mobile-links a:hover{padding-left:6px;}
.mobile-links a.is-active{color:var(--primary);}
.mobile-nav .m-cta{margin-top:32px;}

/* ---------- page hero ---------- */
.page-hero{
  position:relative;
  padding:76px 0 68px;
  background-color:var(--ink-base);
  background-image:linear-gradient(180deg,rgba(6,11,22,.86),rgba(6,11,22,.96)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero::after{
  content:"";
  position:absolute;
  top:-240px;right:-180px;
  width:600px;height:600px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(46,217,195,.12),transparent 68%);
  pointer-events:none;
}
.page-hero .grid-container{position:relative;z-index:2;}
.page-hero h1{
  font-size:clamp(28px,4.2vw,48px);
  font-weight:800;
  line-height:1.2;
  letter-spacing:-.02em;
  max-width:900px;
  margin-bottom:0;
}
.page-hero .lede{
  max-width:760px;
  margin-top:20px;
  font-size:19px;
  line-height:1.8;
  color:var(--text-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-top:32px;}

.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-2);
  margin-bottom:16px;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:var(--text-3);}
.breadcrumb .current{color:var(--primary);}

/* ---------- KPI ---------- */
.kpi-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:24px;
}
.kpi-card{
  position:relative;
  padding:26px 24px;
  border-radius:var(--r-lg);
  border:1px solid rgba(255,255,255,.10);
  background-color:rgba(9,16,30,.55);
  background-image:linear-gradient(180deg,rgba(255,255,255,.05),rgba(255,255,255,.02));
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  box-shadow:var(--sh-1);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.kpi-card::before{
  content:"";
  position:absolute;
  top:0;left:24px;
  width:40px;height:2px;
  background:var(--primary);
}
.kpi-card:hover{transform:translateY(-4px);border-color:rgba(46,217,195,.40);box-shadow:var(--sh-2);}
.kpi-num{
  font-size:36px;
  font-weight:800;
  line-height:1.1;
  color:var(--accent);
  font-variant-numeric:tabular-nums;
  display:flex;
  align-items:baseline;
  gap:6px;
}
.kpi-num .unit{font-size:14px;font-weight:600;color:var(--text-2);letter-spacing:.02em;}
.kpi-label{margin-top:12px;font-size:13px;line-height:1.7;color:var(--text-2);}

/* ---------- compare table ---------- */
.cmp-wrap{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--ink-card);
  box-shadow:var(--sh-1);
  overflow:hidden;
}
.cmp-scroll{overflow-x:auto;}
table.cmp-table{
  width:100%;
  min-width:820px;
  border-collapse:collapse;
  border-spacing:0;
  margin:0;
}
.cmp-table th,.cmp-table td{
  padding:20px 22px;
  text-align:left;
  vertical-align:top;
  font-size:15px;
  border-bottom:1px solid var(--line);
}
.cmp-table thead th{
  position:sticky;
  top:0;
  z-index:3;
  background:rgba(46,217,195,.10);
  color:var(--text-1);
  font-size:14px;
  font-weight:700;
  letter-spacing:.02em;
  white-space:nowrap;
}
.cmp-table thead th.col-primary{
  background:rgba(46,217,195,.20);
  color:var(--primary);
}
.cmp-table tbody th{
  position:sticky;
  left:0;
  z-index:2;
  width:180px;
  background:var(--ink-card);
  color:var(--text-1);
  font-weight:600;
  font-size:15px;
}
.cmp-table tbody td{color:var(--text-2);}
.cmp-table tbody td.col-primary{background:rgba(46,217,195,.05);color:var(--text-1);}
.cmp-table tbody tr:last-child th,
.cmp-table tbody tr:last-child td{border-bottom:0;}
.cmp-table tbody tr:hover td{background:rgba(255,255,255,.02);}
.cmp-table tbody tr:hover td.col-primary{background:rgba(46,217,195,.08);}
.cmp-table td p{margin:0;line-height:1.8;}

.bar-row{display:flex;align-items:center;gap:12px;margin-top:14px;}
.bar{
  flex:1;
  height:8px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.08);
  overflow:hidden;
}
.bar > span{
  display:block;
  height:100%;
  border-radius:var(--r-pill);
  background:linear-gradient(90deg,var(--primary),var(--secondary));
}
.bar-val{
  font-size:13px;
  color:var(--text-2);
  font-variant-numeric:tabular-nums;
  min-width:44px;
  text-align:right;
}
.w-20{width:20%;}
.w-25{width:25%;}
.w-30{width:30%;}
.w-35{width:35%;}
.w-40{width:40%;}
.w-45{width:45%;}
.w-88{width:88%;}
.w-90{width:90%;}
.w-92{width:92%;}
.w-94{width:94%;}
.w-95{width:95%;}

.badge{
  display:inline-block;
  margin-top:12px;
  padding:4px 11px;
  border-radius:var(--r-pill);
  font-size:12.5px;
  letter-spacing:.02em;
  background:rgba(46,217,195,.12);
  border:1px solid rgba(46,217,195,.22);
  color:var(--primary);
}
.badge-muted{
  background:rgba(255,255,255,.06);
  border-color:rgba(255,255,255,.10);
  color:var(--text-3);
}
.cmp-note{
  margin-top:18px;
  font-size:13px;
  color:var(--text-3);
  line-height:1.8;
}

/* ---------- mini card matrix ---------- */
.card-matrix{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
}
.mini-card{
  padding:26px 24px;
  border-radius:var(--r-lg);
  background:var(--ink-card);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.mini-card:hover{
  transform:translateY(-4px);
  border-color:rgba(46,217,195,.40);
  box-shadow:var(--sh-2);
}
.mini-icon{
  width:40px;height:40px;
  border-radius:var(--r-md);
  background:rgba(46,217,195,.10);
  border:1.5px solid rgba(46,217,195,.30);
  color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:17px;
  margin-bottom:18px;
}
.mini-card h3{font-size:19px;font-weight:600;line-height:1.5;margin-bottom:10px;}
.mini-card p{font-size:14.5px;line-height:1.8;color:var(--text-2);margin:0;}

/* ---------- FAQ (Foundation Accordion) ---------- */
.accordion{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:20px 24px;
  align-items:start;
  background:transparent;
  border:0;
  margin:0;
}
.accordion .accordion-item{
  background:var(--ink-card);
  border:1px solid var(--line);
  border-left:3px solid rgba(255,255,255,.08);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color var(--ease),background var(--ease),box-shadow var(--ease);
}
.accordion .accordion-item:hover{border-color:rgba(46,217,195,.30);}
.accordion .accordion-item.is-active{
  border-left-color:var(--primary);
  background:rgba(46,217,195,.06);
  box-shadow:var(--sh-1);
}
.accordion .accordion-title{
  position:relative;
  display:block;
  padding:20px 56px 20px 22px;
  border:0;
  background:transparent;
  color:var(--text-1);
  font-size:17px;
  font-weight:600;
  line-height:1.6;
  transition:color var(--ease);
}
.accordion .accordion-title:hover{background:transparent;color:var(--primary);}
.accordion .accordion-title::before{
  content:"+";
  position:absolute;
  left:auto;right:22px;top:50%;
  transform:translateY(-50%);
  width:auto;height:auto;
  margin:0;
  background:none;
  border:0;
  color:var(--primary);
  font-size:22px;
  font-weight:400;
  line-height:1;
  transition:transform var(--ease);
}
.accordion .accordion-item.is-active .accordion-title::before{content:"−";}
.accordion .accordion-content{
  padding:0 22px 22px;
  border:0;
  background:transparent;
  color:var(--text-2);
  font-size:15.5px;
  line-height:1.85;
}
.accordion .accordion-content p{margin:0;}
.faq-note{
  padding:24px 22px;
  border-radius:var(--r-md);
  background:var(--ink-card);
  border:1px dashed rgba(46,217,195,.30);
}
.faq-note h3{
  font-size:16px;
  font-weight:600;
  color:var(--primary);
  margin-bottom:10px;
}
.faq-note p{font-size:14.5px;line-height:1.85;color:var(--text-2);margin:0;}

/* ---------- CTA band ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:48px 44px;
  border-radius:var(--r-lg);
  border:1px solid rgba(46,217,195,.24);
  background:linear-gradient(135deg,rgba(46,217,195,.14),rgba(74,107,255,.14)),var(--ink-card);
  box-shadow:var(--sh-1);
}
.cta-band::after{
  content:"";
  position:absolute;
  top:-140px;right:-120px;
  width:380px;height:380px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(46,217,195,.16),transparent 70%);
  pointer-events:none;
}
.cta-text{position:relative;z-index:2;max-width:640px;}
.cta-text h2{font-size:clamp(22px,2.6vw,30px);font-weight:700;line-height:1.35;margin-bottom:12px;}
.cta-text p{font-size:16px;color:var(--text-2);margin:0;}
.cta-actions{position:relative;z-index:2;display:flex;gap:14px;flex-wrap:wrap;}

/* ---------- cross links ---------- */
.cross-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:22px;
}
.cross-card{
  display:flex;
  flex-direction:column;
  border-radius:var(--r-lg);
  background:var(--ink-card);
  border:1px solid var(--line);
  box-shadow:var(--sh-1);
  overflow:hidden;
  color:var(--text-2);
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.cross-card:hover{
  transform:translateY(-4px);
  border-color:rgba(46,217,195,.40);
  box-shadow:var(--sh-2);
  color:var(--text-2);
}
.cross-media{
  aspect-ratio:16 / 10;
  overflow:hidden;
  background:rgba(255,255,255,.03);
}
.cross-media img{width:100%;height:100%;object-fit:cover;}
.cross-body{padding:24px 24px 26px;display:flex;flex-direction:column;flex:1;}
.cross-body .badge{margin-top:0;margin-bottom:12px;align-self:flex-start;}
.cross-body h3{font-size:19px;font-weight:600;margin-bottom:10px;}
.cross-body p{font-size:14.5px;line-height:1.8;color:var(--text-2);margin:0 0 16px;}
.cross-link{
  margin-top:auto;
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}
.cross-link i{transition:transform var(--ease);}
.cross-card:hover .cross-link i{transform:translateX(4px);}

/* ---------- footer ---------- */
.site-footer{
  background:#04070F;
  border-top:1px solid var(--line);
  padding:72px 0 0;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.6fr 1fr 1fr 1.2fr;
  gap:40px;
}
.footer h4{font-size:15px;font-weight:600;color:var(--text-1);margin-bottom:16px;letter-spacing:.02em;}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand .brand-mark{width:34px;height:34px;font-size:17px;border-radius:var(--r-sm);}
.footer-brand .brand-name{font-size:16px;font-weight:700;}
.footer-about{font-size:14px;line-height:1.85;color:var(--text-2);margin:0 0 14px;}
.footer-contact{font-size:13px;line-height:1.9;color:var(--text-3);margin:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  display:inline-block;
  font-size:14px;
  color:var(--text-2);
  transition:color var(--ease),transform var(--ease);
}
.footer-links a:hover{color:var(--primary);transform:translateX(2px);}
.footer-cta-box{
  padding:22px;
  border-radius:var(--r-lg);
  background:rgba(46,217,195,.06);
  border:1px solid rgba(46,217,195,.18);
}
.footer-cta-box p{font-size:14px;line-height:1.8;color:var(--text-2);margin:0 0 16px;}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  margin-top:56px;
  padding:22px 0;
  border-top:1px solid var(--line);
}
.footer-bottom p{font-size:13px;color:var(--text-3);margin:0;}
.to-top{
  width:44px;height:44px;
  border-radius:50%;
  border:1px solid rgba(46,217,195,.40);
  background:rgba(46,217,195,.08);
  color:var(--primary);
  font-size:15px;
  display:flex;align-items:center;justify-content:center;
  transition:background var(--ease),box-shadow var(--ease),transform var(--ease);
}
.to-top:hover{background:rgba(46,217,195,.18);box-shadow:var(--glow);transform:translateY(-2px);}

#apply,#compare{scroll-margin-top:96px;}

/* ---------- responsive ---------- */
@media screen and (max-width:1280px){
  .grid-container{max-width:1200px;}
}

@media screen and (max-width:1024px){
  .grid-container{padding-left:28px;padding-right:28px;}
  .section{padding:72px 0;}
  .section--tight{padding-top:60px;padding-bottom:60px;}
  .nav-links{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-actions .btn-primary{display:none;}
  .kpi-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .card-matrix{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cross-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .page-hero{padding:60px 0 56px;}
}

@media screen and (max-width:767px){
  body{font-size:16px;}
  .grid-container{padding-left:20px;padding-right:20px;}
  .section{padding:56px 0;}
  .section--tight{padding-top:52px;padding-bottom:52px;}
  .section-head{margin-bottom:32px;}
  .section-head p{font-size:15.5px;}
  .brand-sub{display:none;}
  .page-hero{padding:48px 0 48px;}
  .page-hero .lede{font-size:17px;}
  .hero-actions{width:100%;}
  .hero-actions .btn{width:100%;}
  .kpi-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
  .kpi-card{padding:22px 18px;}
  .kpi-num{font-size:30px;}
  .card-matrix{grid-template-columns:1fr;}
  .cross-grid{grid-template-columns:1fr;}
  .accordion{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:34px 24px;gap:22px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;margin-top:40px;}
  .site-footer{padding-top:56px;}

  .cmp-scroll{overflow:visible;}
  table.cmp-table{min-width:0;display:block;width:100%;}
  .cmp-table thead{display:none;}
  .cmp-table tbody{display:block;}
  .cmp-table tbody tr{
    display:block;
    padding:22px 20px 8px;
    border-bottom:1px solid var(--line);
  }
  .cmp-table tbody tr:last-child{border-bottom:0;}
  .cmp-table tbody th{
    display:block;
    position:static;
    width:auto;
    padding:0 0 16px;
    background:transparent;
    color:var(--primary);
    font-size:16px;
  }
  .cmp-table tbody td{
    display:block;
    position:static;
    padding:0 0 18px;
    border:0;
    background:transparent !important;
  }
  .cmp-table tbody td::before{
    content:attr(data-label);
    display:block;
    margin-bottom:6px;
    font-size:12px;
    letter-spacing:.04em;
    color:var(--text-3);
  }
}

@media screen and (max-width:520px){
  .kpi-grid{grid-template-columns:1fr;}
  .accordion .accordion-title{font-size:16px;}
}