/* roulang page: index */
:root{
  --bg-base:#0A0D0F;
  --bg-elev-1:#12171A;
  --bg-elev-2:#1A2024;
  --bg-reader:#14191C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --brand:#C6FF3D;
  --brand-deep:#8FCB12;
  --accent:#FF5A2E;
  --text-1:#F2F5F3;
  --text-2:#B6BFC2;
  --text-3:#7C8A8E;
  --glow:0 0 0 1px rgba(198,255,61,.35), 0 0 24px rgba(198,255,61,.22);
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-1:0 1px 2px rgba(0,0,0,.4);
  --shadow-hover:0 12px 32px -8px rgba(0,0,0,.6);
  --maxw:1240px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  --font-num:"Barlow Condensed","Roboto Mono",ui-monospace,Menlo,Consolas,monospace;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  background-image:radial-gradient(1100px 520px at 82% -12%,rgba(198,255,61,.07),transparent 62%),radial-gradient(760px 420px at 4% 6%,rgba(255,90,46,.05),transparent 60%);
  background-repeat:no-repeat;
  color:var(--text-1);
  font-family:var(--font-sans);
  font-size:16.5px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
a:hover{color:var(--brand)}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;line-height:1.18;font-weight:800;letter-spacing:-.015em}
h1{font-size:clamp(30px,4.6vw,54px);line-height:1.14}
h2{font-size:clamp(23px,3.1vw,35px)}
h3{font-size:20px;line-height:1.35}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
::selection{background:rgba(198,255,61,.28)}

/* ---------- 容器 / 栅格 ---------- */
.grid-container{width:100%;max-width:var(--maxw);margin:0 auto;padding-left:32px;padding-right:32px}
.grid-container.wide{max-width:1320px}
.grid-x{display:flex;flex-wrap:wrap;align-items:flex-start}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px;margin-bottom:24px}
.cell{flex:0 0 auto;width:100%;min-width:0}
.small-12{width:100%}
@media screen and (min-width:640px){
  .medium-4{width:33.3333%}
  .medium-6{width:50%}
  .medium-8{width:66.6667%}
}
@media screen and (min-width:1024px){
  .large-3{width:25%}
  .large-4{width:33.3333%}
  .large-5{width:41.6667%}
  .large-6{width:50%}
  .large-7{width:58.3333%}
  .large-8{width:66.6667%}
}
.section{padding:104px 0;position:relative}
.section.tight{padding:78px 0}
.section-divider{border-top:1px solid var(--line)}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:44px}
.section-head .lead{margin-top:14px;max-width:680px;color:var(--text-2);font-size:16.5px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-family:var(--font-num);font-size:12px;letter-spacing:.2em;text-transform:uppercase;color:var(--text-3)}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--brand),transparent)}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:.01em}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:10px;
  height:50px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;border:1px solid transparent;
  cursor:pointer;transition:transform .18s ease-out,background .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out,color .18s ease-out;
  white-space:nowrap;
}
.btn-primary{background:var(--brand);color:#0A0D0F}
.btn-primary:hover{background:#d6ff6d;color:#0A0D0F;box-shadow:var(--glow);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);filter:brightness(.94)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--brand);background:rgba(198,255,61,.08);color:var(--brand);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-block{width:100%}
.text-link{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--text-2);position:relative;transition:color .18s ease-out}
.text-link::after{content:"→";transition:transform .18s ease-out}
.text-link:hover{color:var(--brand)}
.text-link:hover::after{transform:translateX(4px)}

/* ---------- 徽章 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:999px;font-size:12px;letter-spacing:.08em;font-weight:600;border:1px solid var(--line-strong);color:var(--text-2)}
.badge-brand{border-color:rgba(198,255,61,.45);color:var(--brand);background:rgba(198,255,61,.06)}
.badge-accent{border-color:rgba(255,90,46,.45);color:#ff8b68;background:rgba(255,90,46,.07)}
.dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(198,255,61,.9)}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:100;background:rgba(10,13,15,.86);-webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);border-bottom:1px solid var(--line)}
.site-header::after{content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;background:linear-gradient(90deg,transparent,var(--brand),var(--accent),transparent);opacity:.75}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:74px}
.logo{display:flex;align-items:center;gap:11px;flex-shrink:0}
.logo svg{width:34px;height:34px;flex-shrink:0}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-mark{font-size:19px;font-weight:800;letter-spacing:.02em}
.logo-mark em{font-style:normal;color:var(--brand)}
.logo-sub{font-family:var(--font-num);font-size:10.5px;letter-spacing:.22em;color:var(--text-3);text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-link{position:relative;font-size:15px;color:var(--text-2);padding:6px 0;transition:color .18s ease-out}
.nav-link:hover{color:var(--text-1)}
.nav-link.active{color:var(--brand);text-shadow:0 0 18px rgba(198,255,61,.4)}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;background:var(--brand);box-shadow:0 0 12px rgba(198,255,61,.7)}
.nav-right{display:flex;align-items:center;gap:24px}
.nav-toggle{display:none;width:44px;height:44px;border-radius:10px;border:1px solid var(--line-strong);background:rgba(255,255,255,.03);cursor:pointer;align-items:center;justify-content:center}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--text-1);position:relative;border-radius:2px}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);border-radius:2px}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.drawer-mask{position:fixed;inset:0;background:rgba(5,7,8,.66);opacity:0;pointer-events:none;transition:opacity .22s ease-out;z-index:110}
.drawer-mask.open{opacity:1;pointer-events:auto}
.drawer{position:fixed;top:0;right:0;height:100%;width:min(330px,88vw);background:var(--bg-elev-1);border-left:1px solid var(--line);padding:26px 24px 32px;transform:translateX(102%);transition:transform .26s ease-out;z-index:120;display:flex;flex-direction:column;gap:8px}
.drawer.open{transform:translateX(0)}
.drawer-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer-close{width:38px;height:38px;border-radius:10px;border:1px solid var(--line-strong);background:transparent;color:var(--text-2);cursor:pointer;font-size:18px;line-height:1}
.drawer-link{font-size:18px;color:var(--text-2);padding:13px 14px;border-radius:10px;transition:background .18s ease-out,color .18s ease-out}
.drawer-link:hover{background:rgba(255,255,255,.04);color:var(--text-1)}
.drawer-link.active{color:var(--brand);background:rgba(198,255,61,.06);border-left:3px solid var(--brand)}
.drawer .btn{margin-top:auto}

/* ---------- Hero ---------- */
.hero{position:relative;overflow:hidden;background-image:linear-gradient(90deg,rgba(10,13,15,.97) 0%,rgba(10,13,15,.9) 44%,rgba(10,13,15,.55) 100%),url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center right}
.hero::before{content:"";position:absolute;inset:0;background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.05) 0 1px,transparent 1px 5px);opacity:.35;pointer-events:none;mix-blend-mode:overlay}
.hero-inner{position:relative;z-index:2;padding:108px 0 96px;max-width:660px}
.hero h1{margin:22px 0 20px}
.hero h1 .hl{color:var(--brand);text-shadow:0 0 26px rgba(198,255,61,.28)}
.hero-sub{font-size:19px;color:var(--text-2);max-width:560px}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin:34px 0 46px}
.hero-stats{display:flex;flex-wrap:wrap;gap:0 30px;border-top:1px solid var(--line);padding-top:26px}
.hero-stat{padding-right:30px;border-right:1px solid var(--line)}
.hero-stat:last-child{border-right:0;padding-right:0}
.hero-stat b{display:block;font-family:var(--font-num);font-size:30px;font-weight:700;color:var(--brand);letter-spacing:.02em;line-height:1.2}
.hero-stat span{font-size:13px;color:var(--text-3)}

/* ---------- 品牌主张条 ---------- */
.claim{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-elev-1)}
.claim-inner{display:flex;flex-wrap:wrap;align-items:center;gap:14px 26px;padding:30px 0}
.claim-bar{width:3px;height:34px;border-radius:3px;background:linear-gradient(180deg,var(--brand),var(--accent));box-shadow:0 0 18px rgba(198,255,61,.5);flex-shrink:0}
.claim-text{font-size:clamp(17px,2vw,21px);font-weight:800;letter-spacing:.06em}
.claim-tag{font-family:var(--font-num);font-size:11.5px;letter-spacing:.32em;text-transform:uppercase;color:var(--text-3);margin-left:auto}

/* ---------- 品牌故事 ---------- */
.story-sticky{position:sticky;top:112px}
.story-copy p{color:var(--text-2);margin-bottom:18px}
.timeline{margin-top:34px;border-left:1px solid var(--line-strong);padding-left:26px}
.timeline li{position:relative;padding-bottom:26px}
.timeline li:last-child{padding-bottom:0}
.timeline li::before{content:"";position:absolute;left:-33px;top:7px;width:11px;height:11px;border-radius:50%;background:var(--bg-base);border:2px solid var(--brand);box-shadow:0 0 12px rgba(198,255,61,.55)}
.timeline b{display:block;font-family:var(--font-num);font-size:13px;letter-spacing:.16em;color:var(--brand);text-transform:uppercase}
.timeline p{color:var(--text-2);font-size:15.5px;max-width:520px}
.story-figure{margin-top:30px;border-radius:var(--radius-img);overflow:hidden;border:1px solid var(--line)}
.story-figure img{width:100%;aspect-ratio:16/9;object-fit:cover}
.story-figure figcaption{font-size:13px;color:var(--text-3);padding:12px 16px;background:var(--bg-elev-1);border-top:1px solid var(--line)}

/* ---------- 卡片体系 ---------- */
.card{background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;height:100%}
.card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.card-cover{border-radius:var(--radius-img);overflow:hidden;background:var(--bg-elev-2);margin-bottom:20px}
.card-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s ease-out}
.card:hover .card-cover img{transform:scale(1.03)}
.card h3{margin-bottom:12px}
.card p{color:var(--text-2);font-size:15.5px}
.feature-lg .card-cover img{aspect-ratio:16/10}
.feature-card .card-cover img{aspect-ratio:4/3}
.bullets{margin-top:16px;display:grid;gap:9px}
.bullets li{position:relative;padding-left:18px;color:var(--text-2);font-size:15px}
.bullets li::before{content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--brand);opacity:.85}
.card-foot{margin-top:20px;display:flex;align-items:center;justify-content:space-between;gap:12px;border-top:1px solid var(--line);padding-top:16px}
.tag-model{font-family:var(--font-num);font-size:12px;letter-spacing:.12em;color:var(--text-3)}

/* ---------- 数据带 ---------- */
.metrics{background:var(--bg-elev-1);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.metric{padding:6px 0}
.metric b{display:block;font-family:var(--font-num);font-size:clamp(32px,4.4vw,46px);font-weight:700;color:var(--brand);line-height:1.1;letter-spacing:.01em}
.metric span{display:block;font-size:14.5px;color:var(--text-2);margin-top:8px}
.metric small{display:block;font-size:13px;color:var(--text-3);margin-top:4px}

/* ---------- 资讯列表 ---------- */
.news-card{display:flex;flex-direction:column;height:100%}
.news-thumb{display:block;border-radius:var(--radius-img);overflow:hidden;background:var(--bg-elev-2);aspect-ratio:16/9}
.news-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.news-card:hover .news-thumb img{transform:scale(1.04)}
.news-body{padding-top:18px;display:flex;flex-direction:column;flex:1}
.news-title{font-size:19px;font-weight:800;line-height:1.45;margin:12px 0 10px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card:hover .news-title{color:var(--brand)}
.news-sum{color:var(--text-2);font-size:15px;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:auto;padding-top:16px;border-top:1px solid var(--line);font-size:13px;color:var(--text-3)}
.empty-state{border:1px dashed var(--line-strong);border-radius:var(--radius-card);padding:54px 26px;text-align:center;background:rgba(255,255,255,.015)}
.empty-state b{display:block;font-size:17px;margin-bottom:8px}
.empty-state p{color:var(--text-3);font-size:14.5px;margin-bottom:20px}
.pagination{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:44px;flex-wrap:wrap}
.page-btn{min-width:42px;height:42px;padding:0 12px;border-radius:10px;border:1px solid var(--line-strong);background:transparent;color:var(--text-2);font-size:14px;display:inline-flex;align-items:center;justify-content:center;transition:all .18s ease-out}
.page-btn:hover{border-color:var(--brand);color:var(--brand)}
.page-btn.current{background:var(--brand);border-color:var(--brand);color:#0A0D0F;font-weight:700}

/* ---------- 信任背书 ---------- */
.logo-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:14px}
.logo-chip{display:flex;align-items:center;justify-content:center;text-align:center;min-height:84px;border:1px solid var(--line);border-radius:12px;background:rgba(255,255,255,.015);color:var(--text-3);font-size:15px;font-weight:600;letter-spacing:.04em;transition:all .2s ease-out}
.logo-chip:hover{border-color:var(--line-strong);color:var(--text-2)}
.quote-card{background:var(--bg-elev-1);border:1px solid var(--line);border-left:3px solid var(--brand);border-radius:var(--radius-card);padding:26px}
.quote-card p{color:var(--text-1);font-size:16.5px;line-height:1.8}
.quote-who{display:flex;align-items:center;gap:12px;margin-top:18px;color:var(--text-3);font-size:14px}
.quote-who i{width:34px;height:34px;border-radius:50%;background:linear-gradient(140deg,var(--brand),var(--brand-deep));display:inline-block;flex-shrink:0}

/* ---------- FAQ ---------- */
.faq-item{border:1px solid var(--line);border-radius:14px;background:var(--bg-elev-1);margin-bottom:12px;overflow:hidden;transition:border-color .2s ease-out,background .2s ease-out}
.faq-item.open{border-color:var(--line-strong);background:var(--bg-elev-2);box-shadow:inset 3px 0 0 var(--brand)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;text-align:left;background:transparent;border:0;padding:20px 22px;font-size:16.5px;font-weight:600;cursor:pointer;color:var(--text-1)}
.faq-q:hover{color:var(--brand)}
.faq-icon{position:relative;width:16px;height:16px;flex-shrink:0}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .22s ease-out,opacity .22s ease-out}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.open .faq-icon::after{transform:rotate(90deg);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-a p{padding:0 22px 22px;color:var(--text-2);font-size:15.5px;line-height:1.8}

/* ---------- CTA / 表单 ---------- */
.cta-band{position:relative;border-radius:22px;border:1px solid rgba(198,255,61,.35);background:linear-gradient(135deg,rgba(198,255,61,.08),rgba(255,90,46,.06) 60%,transparent),var(--bg-elev-1);box-shadow:0 0 0 1px rgba(198,255,61,.12),0 24px 60px -30px rgba(198,255,61,.35);padding:46px;overflow:hidden}
.cta-band h2{margin-bottom:14px}
.cta-band p{color:var(--text-2)}
.form-grid{display:grid;gap:16px}
.field label{display:block;font-size:13px;color:var(--text-3);margin-bottom:7px;letter-spacing:.04em}
.field input,.field select,.field textarea{width:100%;background:var(--bg-base);border:1px solid var(--line-strong);border-radius:10px;padding:13px 15px;font-size:15px;transition:border-color .18s ease-out,box-shadow .18s ease-out;color:var(--text-1)}
.field input::placeholder,.field textarea::placeholder{color:#5d686b}
.field input:focus,.field select:focus,.field textarea:focus{outline:none;border-color:var(--brand);box-shadow:0 0 0 1px rgba(198,255,61,.35),0 0 22px rgba(198,255,61,.18)}
.field-row{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.form-note{font-size:13px;color:var(--text-3)}
.form-msg{margin-top:14px;font-size:14px;color:var(--brand);display:none}
.form-msg.show{display:block}
.contact-list{display:grid;gap:14px;margin-top:22px}
.contact-list li{display:flex;gap:12px;align-items:flex-start;color:var(--text-2);font-size:15px}
.contact-list b{color:var(--text-1);font-weight:600;min-width:64px;display:inline-block}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:24px;background:#080A0C;position:relative;border-top:1px solid var(--line)}
.site-footer::before{content:"";position:absolute;top:-1px;left:0;right:0;height:1px;background:linear-gradient(90deg,transparent,var(--brand),var(--accent),transparent);opacity:.7}
.footer-top{padding:70px 0 46px}
.footer-col h4{font-size:14px;letter-spacing:.16em;color:var(--text-3);font-weight:700;margin-bottom:18px;text-transform:uppercase}
.footer-col li{margin-bottom:11px}
.footer-col a{font-size:15px;color:var(--text-2);transition:color .18s ease-out,padding-left .18s ease-out}
.footer-col a:hover{color:var(--brand);padding-left:4px}
.footer-brand p{color:var(--text-2);font-size:15px;max-width:330px;margin-top:16px}
.footer-contact{margin-top:18px;display:grid;gap:8px;font-size:14.5px;color:var(--text-3)}
.footer-contact b{color:var(--text-1);font-weight:600}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0;display:flex;flex-wrap:wrap;gap:12px 24px;align-items:center;justify-content:space-between;font-size:13px;color:var(--text-3)}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  .nav-links,.nav-right .btn{display:none}
  .nav-toggle{display:inline-flex}
  .section{padding:72px 0}
  .section.tight{padding:60px 0}
  .hero-inner{padding:78px 0 70px;max-width:none}
  .story-sticky{position:static}
  .cta-band{padding:32px}
  .grid-container{padding-left:24px;padding-right:24px}
  .logo-grid{grid-template-columns:repeat(2,1fr)}
}
@media screen and (max-width:767px){
  body{font-size:16px;line-height:1.8}
  .section{padding:56px 0}
  .section-head{margin-bottom:30px}
  .hero{background-position:center}
  .hero-stats{gap:18px 22px}
  .hero-stat{padding-right:22px}
  .hero-stat b{font-size:26px}
  .hero-sub{font-size:17px}
  .hero-cta .btn{width:100%}
  .claim-tag{margin-left:0;width:100%}
  .field-row{grid-template-columns:1fr}
  .footer-top{padding:52px 0 34px}
  .timeline{padding-left:20px}
}
@media screen and (max-width:520px){
  .grid-container{padding-left:18px;padding-right:18px}
  .grid-margin-x{margin-left:-9px;margin-right:-9px}
  .grid-margin-x>.cell{padding-left:9px;padding-right:9px;margin-bottom:18px}
  .card{padding:20px}
  .cta-band{padding:24px;border-radius:16px}
  .logo-grid{grid-template-columns:1fr}
  .hero-stat{padding-right:0;border-right:0}
}

/* roulang page: article */
:root{
  --bg-base:#0A0D0F;
  --bg-elev-1:#12171A;
  --bg-elev-2:#1A2024;
  --bg-reader:#14191C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --brand:#C6FF3D;
  --brand-deep:#8FCB12;
  --accent:#FF5A2E;
  --text-1:#F2F5F3;
  --text-2:#B6BFC2;
  --text-3:#7C8A8E;
  --glow:0 0 0 1px rgba(198,255,61,.35),0 0 24px rgba(198,255,61,.22);
  --radius-card:16px;
  --radius-img:14px;
  --radius-btn:10px;
  --shadow-1:0 1px 2px rgba(0,0,0,.4);
  --shadow-2:0 12px 32px -8px rgba(0,0,0,.6);
  --sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Arial,sans-serif;
  --mono:"Barlow Condensed","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-2);
  font-family:var(--sans);
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body.nav-open{overflow:hidden;}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out;}
button,input,textarea,select{font:inherit;color:inherit;}
p{margin:0 0 18px;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:4px;}

/* ===== 容器 ===== */
.grid-container.wide{
  max-width:1304px;
  padding-left:32px;
  padding-right:32px;
}

/* ===== 阅读进度条 ===== */
.read-progress{
  position:fixed;top:0;left:0;right:0;height:3px;
  background:rgba(255,255,255,.05);
  z-index:200;pointer-events:none;
}
.read-progress span{
  display:block;height:100%;width:0;
  background:linear-gradient(90deg,var(--brand-deep),var(--brand),var(--accent));
  box-shadow:0 0 14px rgba(198,255,61,.5);
  transition:width .1s linear;
}

/* ===== 页头导航 ===== */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(10,13,15,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand),var(--accent),transparent);
  opacity:.85;
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:72px;
}
.logo{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.logo svg{width:38px;height:38px;flex:0 0 auto;}
.logo-text{display:flex;flex-direction:column;line-height:1.1;}
.logo-mark{font-size:17px;font-weight:800;color:var(--text-1);letter-spacing:-.01em;}
.logo-mark em{font-style:normal;color:var(--brand);}
.logo-sub{font-family:var(--mono);font-size:10px;letter-spacing:.16em;color:var(--text-3);text-transform:uppercase;margin-top:3px;}

.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;padding:10px 14px;font-size:15px;color:var(--text-2);
  border-radius:8px;white-space:nowrap;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.045);}
.nav-link.active{color:var(--brand);text-shadow:0 0 16px rgba(198,255,61,.45);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  border-radius:2px;background:var(--brand);box-shadow:0 0 12px rgba(198,255,61,.8);
}
.nav-right{display:flex;align-items:center;gap:24px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:10px;
  border:1px solid var(--line-strong);background:transparent;
  align-items:center;justify-content:center;cursor:pointer;
  position:relative;z-index:130;transition:border-color .18s ease-out;
}
.nav-toggle:hover{border-color:var(--brand);}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  display:block;width:18px;height:2px;border-radius:2px;background:var(--text-1);
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle span{position:relative;}
.nav-toggle span::before{content:"";position:absolute;top:-6px;left:0;}
.nav-toggle span::after{content:"";position:absolute;top:6px;left:0;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 24px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:700;letter-spacing:.01em;
  border:1px solid transparent;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{background:var(--brand);color:#0A0D0F;}
.btn-primary:hover{background:#D6FF66;box-shadow:var(--glow);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);filter:brightness(.92);box-shadow:none;}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text-1);}
.btn-ghost:hover{border-color:var(--brand);background:rgba(198,255,61,.08);color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}

/* ===== 徽章 ===== */
.badge{
  display:inline-flex;align-items:center;gap:6px;height:24px;padding:0 11px;
  border-radius:999px;font-size:12px;line-height:1;letter-spacing:.08em;border:1px solid;
}
.badge-accent{border-color:rgba(255,90,46,.55);color:#FF8B68;background:rgba(255,90,46,.09);}
.badge-brand{border-color:rgba(198,255,61,.5);color:var(--brand);background:rgba(198,255,61,.08);}

/* ===== 文章头图横幅 ===== */
.article-hero{
  position:relative;padding:56px 0 54px;
  background-color:var(--bg-elev-1);
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.article-hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:
    linear-gradient(90deg,rgba(10,13,15,.97) 0%,rgba(10,13,15,.88) 38%,rgba(10,13,15,.58) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;
  background-position:center;
}
.article-hero-bg::after{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.045) 1px,transparent 1px);
  background-size:46px 46px;
  opacity:.55;
}
.article-hero .grid-container{position:relative;z-index:1;}

.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:14px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{color:rgba(255,255,255,.2);}
.breadcrumb .current{
  max-width:50%;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
  color:var(--text-2);
}

.article-title{
  max-width:860px;margin:0 0 22px;
  font-size:clamp(28px,3.6vw,44px);
  line-height:1.22;font-weight:800;letter-spacing:-.02em;color:var(--text-1);
}
.article-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 18px;
  font-size:13.5px;color:var(--text-3);
}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px;}
.article-meta .meta-item b{
  color:var(--text-2);font-weight:600;font-family:var(--mono);
  letter-spacing:.03em;font-size:14px;
}
.article-meta .dot{width:4px;height:4px;border-radius:50%;background:rgba(255,255,255,.22);}

/* ===== 正文阅读区 ===== */
.article-main{padding:56px 0 88px;}
.reader-panel{
  background:var(--bg-reader);
  border:1px solid var(--line);
  border-radius:20px;
  padding:46px 56px 54px;
  box-shadow:var(--shadow-1);
}
.reader-content{font-size:17px;line-height:1.9;color:var(--text-2);}
.reader-content>*:first-child{margin-top:0;}
.reader-content p{margin:0 0 22px;}
.reader-content h2{
  position:relative;margin:48px 0 20px;padding-left:18px;
  font-size:clamp(21px,2.4vw,27px);line-height:1.42;font-weight:800;
  color:var(--text-1);letter-spacing:-.01em;
}
.reader-content h2::before{
  content:"";position:absolute;left:0;top:.3em;bottom:.3em;width:4px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--brand-deep));
  box-shadow:0 0 12px rgba(198,255,61,.5);
}
.reader-content h3{
  margin:34px 0 14px;font-size:21px;line-height:1.45;font-weight:700;color:var(--text-1);
}
.reader-content h4{
  margin:26px 0 12px;font-size:17.5px;font-weight:700;color:var(--text-1);
}
.reader-content strong{color:var(--text-1);font-weight:700;}
.reader-content a{color:var(--brand);text-decoration:underline;text-underline-offset:3px;}
.reader-content a:hover{color:#D6FF66;}
.reader-content blockquote{
  margin:26px 0;padding:14px 22px;
  border-left:3px solid var(--brand);
  background:linear-gradient(90deg,rgba(198,255,61,.07),rgba(198,255,61,0));
  border-radius:0 12px 12px 0;
  color:var(--text-1);
}
.reader-content blockquote p:last-child{margin-bottom:0;}
.reader-content ul,.reader-content ol{margin:0 0 22px;padding-left:0;list-style:none;}
.reader-content ul li{position:relative;padding-left:22px;margin-bottom:10px;}
.reader-content ul li::before{
  content:"";position:absolute;left:0;top:.72em;width:8px;height:8px;
  border-radius:2px;background:var(--brand);
}
.reader-content ol{counter-reset:rc;}
.reader-content ol li{position:relative;padding-left:36px;margin-bottom:12px;counter-increment:rc;}
.reader-content ol li::before{
  content:counter(rc);
  position:absolute;left:0;top:.28em;
  width:24px;height:24px;border-radius:8px;
  display:flex;align-items:center;justify-content:center;
  font-family:var(--mono);font-size:13px;font-weight:700;
  color:var(--brand);background:rgba(198,255,61,.1);
  border:1px solid rgba(198,255,61,.35);
}
.reader-content img{
  display:block;max-width:100%;height:auto;margin:28px auto;
  border-radius:var(--radius-img);background:var(--bg-elev-2);
}
.reader-content hr{border:0;border-top:1px solid var(--line);margin:38px 0;}
.reader-content table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;
  border:1px solid var(--line);border-radius:12px;overflow:hidden;
}
.reader-content table th,.reader-content table td{
  padding:12px 15px;border-bottom:1px solid var(--line);text-align:left;vertical-align:top;
}
.reader-content table th{background:var(--bg-elev-2);color:var(--text-1);font-weight:700;}
.reader-content table tbody tr:nth-child(odd){background:rgba(255,255,255,.028);}
.reader-content table tbody tr:last-child td{border-bottom:0;}

/* ===== 空状态 ===== */
.empty-state{padding:26px 0 10px;text-align:center;}
.empty-state .empty-icon{
  width:64px;height:64px;margin:0 auto 22px;border-radius:18px;
  border:1px dashed rgba(198,255,61,.45);
  display:flex;align-items:center;justify-content:center;
  color:var(--brand);font-family:var(--mono);font-size:22px;
  background:rgba(198,255,61,.05);
}
.empty-state h2{margin:0 0 14px;font-size:24px;font-weight:800;color:var(--text-1);}
.empty-state p{max-width:520px;margin:0 auto 26px;font-size:15px;color:var(--text-3);}

/* ===== 延伸阅读 ===== */
.read-next{padding:0 0 72px;}
.sec-head{margin-bottom:32px;}
.sec-head h2{
  margin:0 0 8px;font-size:clamp(22px,2.6vw,30px);font-weight:800;
  color:var(--text-1);letter-spacing:-.01em;
}
.sec-head p{margin:0;font-size:14.5px;color:var(--text-3);}

.card{
  display:flex;flex-direction:column;height:100%;
  background:var(--bg-elev-1);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-2);border-color:var(--line-strong);}
.card-thumb{
  position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-elev-2);
}
.card-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out;}
.card:hover .card-thumb img{transform:scale(1.04);}
.card-thumb::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(10,13,15,0) 40%,rgba(10,13,15,.72));
}
.card-body{padding:20px 22px 24px;display:flex;flex-direction:column;gap:10px;flex:1;}
.card-body h3{margin:0;font-size:17px;line-height:1.45;font-weight:700;color:var(--text-1);transition:color .18s ease-out;}
.card:hover .card-body h3{color:var(--brand);}
.card-body p{margin:0;font-size:14px;line-height:1.7;color:var(--text-3);}
.card-arrow{
  margin-top:auto;padding-top:6px;font-size:13.5px;color:var(--brand);
  display:inline-flex;align-items:center;gap:6px;
}
.card:hover .card-arrow{gap:10px;}
.card-arrow span{transition:transform .18s ease-out;}
.card:hover .card-arrow span{transform:translateX(2px);}

/* ===== 返回分类 ===== */
.back-line{display:flex;justify-content:center;padding:0 0 96px;}

/* ===== CTA ===== */
.cta-band{padding:0 0 104px;}
.cta-inner{
  position:relative;overflow:hidden;
  border:1px solid rgba(198,255,61,.28);
  border-radius:22px;
  padding:50px 54px;
  background:linear-gradient(120deg,rgba(198,255,61,.075),rgba(255,90,46,.05) 62%,rgba(10,13,15,0));
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
}
.cta-inner::before{
  content:"";position:absolute;top:0;left:0;right:0;height:2px;
  background:linear-gradient(90deg,transparent,var(--brand),var(--accent),transparent);
}
.cta-copy h2{
  margin:0 0 14px;font-size:clamp(22px,2.6vw,30px);line-height:1.35;
  font-weight:800;color:var(--text-1);letter-spacing:-.01em;
}
.cta-copy p{margin:0;font-size:15px;line-height:1.85;color:var(--text-2);max-width:520px;}
.cta-points{list-style:none;margin:20px 0 0;padding:0;display:flex;flex-wrap:wrap;gap:10px 18px;}
.cta-points li{
  position:relative;padding-left:16px;font-size:13.5px;color:var(--text-3);
}
.cta-points li::before{
  content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 8px rgba(198,255,61,.7);
}
.cta-form{display:grid;gap:14px;}
.field{display:flex;flex-direction:column;gap:7px;}
.field label{font-size:13px;color:var(--text-3);letter-spacing:.02em;}
.field input{
  height:50px;padding:0 15px;border-radius:var(--radius-btn);
  background:rgba(10,13,15,.72);
  border:1px solid var(--line);
  color:var(--text-1);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.field input::placeholder{color:#5C686C;}
.field input:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(198,255,61,.15);
}
.form-note{margin:0;font-size:13px;color:var(--brand);min-height:18px;}

/* ===== 页脚 ===== */
.site-footer{
  position:relative;
  border-top:1px solid var(--line);
  background:#080B0D;
  padding:64px 0 26px;
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand),var(--accent),transparent);
}
.footer-top{padding-bottom:40px;border-bottom:1px solid var(--line);}
.footer-col{margin-bottom:28px;}
.footer-brand .logo-mark{display:block;font-size:18px;font-weight:800;color:var(--text-1);margin-bottom:14px;}
.footer-brand .logo-mark em{font-style:normal;color:var(--brand);}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--text-3);max-width:340px;margin-bottom:18px;}
.footer-contact{display:flex;flex-direction:column;gap:8px;font-size:13.5px;color:var(--text-3);}
.footer-contact b{color:var(--text-2);font-weight:600;}
.footer-col h4{
  margin:0 0 16px;font-size:14px;font-weight:700;color:var(--text-1);letter-spacing:.04em;
}
.footer-col ul{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;}
.footer-col ul li a{font-size:14px;color:var(--text-3);}
.footer-col ul li a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:10px 24px;justify-content:space-between;
  padding-top:22px;font-size:13px;color:var(--text-3);
}

/* ===== 响应式 ===== */
@media screen and (max-width:1023px){
  .site-header{backdrop-filter:none;-webkit-backdrop-filter:none;background:rgba(10,13,15,.97);}
  .nav-toggle{display:flex;}
  .nav-links{
    position:fixed;top:0;right:0;bottom:0;
    width:min(330px,86vw);
    background:#0C1114;
    border-left:1px solid var(--line);
    flex-direction:column;align-items:stretch;justify-content:flex-start;
    gap:4px;padding:96px 24px 36px;
    transform:translateX(102%);
    transition:transform .28s ease-out;
    z-index:115;overflow-y:auto;
    box-shadow:-24px 0 48px rgba(0,0,0,.55);
  }
  .nav-links.is-open{transform:translateX(0);}
  .nav-link{padding:14px 16px;font-size:17px;border-radius:10px;}
  .nav-link.active{background:rgba(198,255,61,.06);}
  .nav-link.active::after{
    left:0;right:auto;top:12px;bottom:12px;
    width:3px;height:auto;border-radius:2px;
  }
  .nav-link:hover{background:rgba(255,255,255,.05);}
  .nav-right .btn{display:none;}
  .cta-inner{grid-template-columns:1fr;gap:30px;padding:36px 28px;}
  .reader-panel{padding:38px 34px 44px;}
}

@media screen and (max-width:768px){
  .grid-container.wide{padding-left:20px;padding-right:20px;}
  .nav-inner{height:64px;}
  .logo svg{width:34px;height:34px;}
  .logo-mark{font-size:15.5px;}
  .logo-sub{font-size:9px;letter-spacing:.13em;}
  .article-hero{padding:38px 0 36px;}
  .article-title{font-size:26px;}
  .breadcrumb{font-size:13px;margin-bottom:16px;}
  .breadcrumb .current{max-width:58%;}
  .article-main{padding:34px 0 62px;}
  .reader-panel{padding:26px 20px 32px;border-radius:16px;}
  .reader-content{font-size:16px;line-height:1.85;}
  .reader-content h2{margin-top:36px;padding-left:14px;}
  .read-next{padding-bottom:52px;}
  .read-next .cell{margin-bottom:18px;}
  .back-line{padding-bottom:64px;}
  .cta-band{padding-bottom:72px;}
  .cta-inner{padding:30px 22px;border-radius:18px;}
  .cta-copy h2{font-size:21px;}
  .site-footer{padding:48px 0 22px;}
  .footer-bottom{flex-direction:column;gap:8px;font-size:12.5px;}
}

@media screen and (max-width:520px){
  .btn{height:46px;padding:0 18px;font-size:14.5px;width:100%;}
  .nav-toggle{width:42px;height:42px;}
  .breadcrumb{gap:6px;}
  .article-meta{gap:8px 12px;font-size:13px;}
  .reader-content h3{font-size:19px;}
  .reader-content ol li{padding-left:32px;}
  .cta-points{flex-direction:column;gap:8px;}
}

/* roulang page: category2 */
:root{
  --bg-base:#0A0D0F;
  --bg-elev-1:#12171A;
  --bg-elev-2:#1A2024;
  --bg-reader:#14191C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --brand:#C6FF3D;
  --brand-deep:#8FCB12;
  --accent:#FF5A2E;
  --text-1:#F2F5F3;
  --text-2:#B6BFC2;
  --text-3:#7C8A8E;
  --glow:0 0 0 1px rgba(198,255,61,.35),0 0 24px rgba(198,255,61,.22);
  --r-card:16px;
  --r-btn:10px;
  --r-img:14px;
  --maxw:1240px;
  --ease:160ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color var(--ease),border-color var(--ease),background var(--ease)}
a:focus-visible,button:focus-visible,input:focus-visible,select:focus-visible,textarea:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:800;letter-spacing:-.01em}
p{margin:0}
button{font-family:inherit}
.grid-container.wide{max-width:var(--maxw);padding-left:20px;padding-right:20px}
@media screen and (min-width:64em){
  .grid-container.wide{padding-left:32px;padding-right:32px}
}
.mono{font-family:"Barlow Condensed","Roboto Mono",ui-monospace,monospace;font-variant-numeric:tabular-nums;letter-spacing:.02em}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:80;
  background:rgba(10,13,15,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(198,255,61,.55),rgba(255,90,46,.45),transparent);
}
.nav-inner{display:flex;align-items:center;gap:24px;height:76px}
.logo{display:flex;align-items:center;gap:12px;flex:0 0 auto}
.logo svg{width:40px;height:40px;flex:0 0 40px}
.logo-text{display:flex;flex-direction:column;line-height:1.2}
.logo-mark{font-size:17px;font-weight:800;color:var(--text-1);letter-spacing:-.01em}
.logo-mark em{font-style:normal;color:var(--brand)}
.logo-sub{font-size:11px;color:var(--text-3);letter-spacing:.08em;text-transform:uppercase}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto}
.nav-link{
  position:relative;
  padding:10px 14px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.nav-link.active{color:var(--brand);text-shadow:0 0 16px rgba(198,255,61,.4)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
  box-shadow:0 0 10px rgba(198,255,61,.7);
}
.nav-right{display:flex;align-items:center;gap:16px;margin-left:24px}
.nav-toggle{
  display:none;position:relative;width:44px;height:44px;flex:0 0 44px;
  background:transparent;border:1px solid var(--line-strong);border-radius:10px;cursor:pointer;
}
.nav-toggle span{position:absolute;left:13px;top:21px;width:18px;height:2px;background:var(--text-1);transition:var(--ease)}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text-1);transition:var(--ease)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg);background:var(--brand)}
body.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg);background:var(--brand)}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:50px;padding:0 24px;border-radius:var(--r-btn);
  font-size:15px;font-weight:700;border:1px solid transparent;cursor:pointer;
  transition:transform var(--ease),box-shadow var(--ease),background var(--ease),border-color var(--ease),color var(--ease);
  white-space:nowrap;
}
.btn-sm{height:42px;padding:0 18px;font-size:14px}
.btn-primary{background:var(--brand);color:#0A0D0F}
.btn-primary:hover{background:#d6ff6a;box-shadow:var(--glow);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);background:var(--brand-deep)}
.btn-ghost{background:transparent;color:var(--text-1);border-color:var(--line-strong)}
.btn-ghost:hover{border-color:var(--brand);background:rgba(198,255,61,.08);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--brand);
  border-bottom:1px solid rgba(198,255,61,.35);padding-bottom:2px;
}
.link-arrow:hover{border-bottom-color:var(--brand);color:#dcff86}
.link-arrow::after{content:"→";transition:transform var(--ease)}
.link-arrow:hover::after{transform:translateX(4px)}

/* ---------- 徽章 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.08em;padding:6px 14px;border-radius:999px;
  border:1px solid rgba(198,255,61,.45);color:var(--brand);background:rgba(198,255,61,.06);
}
.badge-accent{border-color:rgba(255,90,46,.45);color:var(--accent);background:rgba(255,90,46,.06)}
.badge-dot{width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 8px var(--brand)}

/* ---------- 横幅 ---------- */
.page-banner{
  position:relative;
  min-height:320px;
  display:flex;align-items:center;
  background-image:linear-gradient(90deg,rgba(10,13,15,.95) 0%,rgba(10,13,15,.82) 42%,rgba(10,13,15,.35) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  padding:56px 0 64px;
}
.page-banner::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.05;
  background-image:repeating-linear-gradient(0deg,rgba(255,255,255,.6) 0 1px,transparent 1px 4px);
}
.banner-inner{position:relative;z-index:2;max-width:720px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:14px;color:var(--text-3);margin-bottom:22px}
.crumb a:hover{color:var(--brand)}
.crumb .sep{opacity:.5}
.crumb .current{color:var(--text-2)}
.page-banner h1{font-size:clamp(32px,5vw,56px);font-weight:800;line-height:1.15;letter-spacing:-.02em;margin:18px 0 16px}
.page-banner h1 em{font-style:normal;color:var(--brand)}
.banner-lead{font-size:18px;color:var(--text-2);max-width:600px}
.banner-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}

/* ---------- 通用板块 ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-alt{background:var(--bg-reader);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:660px;margin-bottom:48px}
.section-head h2{font-size:clamp(24px,3.2vw,36px);margin:16px 0 14px}
.section-head p{color:var(--text-2);font-size:16px}
.eyebrow{font-size:12px;letter-spacing:.14em;color:var(--brand);text-transform:uppercase}

/* ---------- 场景标签 ---------- */
.scene-band{padding:56px 0;border-bottom:1px solid var(--line);background:linear-gradient(180deg,rgba(26,32,36,.7),rgba(10,13,15,0))}
.scene-band h2{font-size:clamp(20px,2.4vw,26px);margin-bottom:10px}
.scene-band p{color:var(--text-2);font-size:15px;margin-bottom:24px}
.pill-row{display:flex;flex-wrap:wrap;gap:12px}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:10px 18px;border-radius:999px;font-size:14px;color:var(--text-2);
  border:1px solid var(--line-strong);background:var(--bg-elev-1);
  transition:border-color var(--ease),color var(--ease),transform var(--ease);
}
.pill:hover{border-color:rgba(198,255,61,.5);color:var(--text-1);transform:translateY(-2px)}
.pill b{color:var(--brand);font-weight:700}

/* ---------- 交替图文分节 ---------- */
.split-row{display:grid;gap:48px;align-items:center;margin-bottom:88px}
.split-row:last-child{margin-bottom:0}
@media screen and (min-width:64em){
  .split-row{grid-template-columns:1fr 1fr;gap:64px}
  .split-row.reverse .split-media{order:2}
}
.split-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);background:var(--bg-elev-2)}
.split-media img{width:100%;height:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0}
.split-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,transparent 45%,rgba(10,13,15,.6))}
.split-no{
  position:absolute;left:20px;top:18px;z-index:2;
  font-family:"Barlow Condensed",ui-monospace,monospace;font-size:15px;font-weight:700;
  color:var(--brand);letter-spacing:.12em;
  background:rgba(10,13,15,.72);border:1px solid rgba(198,255,61,.4);
  padding:5px 12px;border-radius:999px;
}
.split-body h3{font-size:clamp(20px,2.4vw,26px);margin:14px 0 14px}
.split-body > p{color:var(--text-2);font-size:16px;margin-bottom:20px}
.check-list{display:grid;gap:12px;margin-bottom:24px}
.check-list li{position:relative;padding-left:26px;font-size:15px;color:var(--text-2);line-height:1.75}
.check-list li::before{
  content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(198,255,61,.5);
}
.check-list li b{color:var(--text-1);font-weight:700}

/* ---------- 流程条 ---------- */
.step-track{display:grid;gap:20px}
@media screen and (min-width:64em){
  .step-track{grid-template-columns:repeat(4,1fr)}
}
.step-item{
  position:relative;padding:26px 22px 24px;
  background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--r-card);
  transition:transform var(--ease),box-shadow var(--ease),border-color var(--ease);
}
.step-item:hover{transform:translateY(-3px);border-color:rgba(198,255,61,.35);box-shadow:0 12px 32px -8px rgba(0,0,0,.6)}
.step-no{font-family:"Barlow Condensed",ui-monospace,monospace;font-size:34px;font-weight:700;color:rgba(198,255,61,.85);line-height:1;display:block;margin-bottom:14px}
.step-item h3{font-size:18px;margin-bottom:10px}
.step-item p{font-size:14px;color:var(--text-2);line-height:1.75}
.step-item::after{content:"";position:absolute;left:0;top:0;width:3px;height:38px;background:var(--brand);border-radius:0 3px 3px 0;opacity:.75}

/* ---------- 指标带 ---------- */
.metric-strip{
  display:grid;gap:24px;
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--bg-elev-1);
  padding:38px 28px;
}
@media screen and (min-width:40em){.metric-strip{grid-template-columns:repeat(2,1fr)}}
@media screen and (min-width:64em){.metric-strip{grid-template-columns:repeat(4,1fr);padding:44px 40px}}
.metric{border-left:1px solid var(--line);padding-left:22px}
.metric:first-child{border-left:none;padding-left:0}
@media screen and (max-width:63.94em){.metric{border-left:none;padding-left:0}}
.metric-value{font-family:"Barlow Condensed",ui-monospace,monospace;font-size:clamp(30px,4vw,42px);font-weight:700;color:var(--brand);line-height:1.1;display:block}
.metric-label{font-size:14px;color:var(--text-2);margin-top:8px;display:block}
.metric-note{font-size:13px;color:var(--text-3);margin-top:4px;display:block}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto}
.faq-item{border:1px solid var(--line);border-radius:var(--r-card);background:var(--bg-elev-1);margin-bottom:14px;overflow:hidden;transition:border-color var(--ease),background var(--ease)}
.faq-item.is-open{border-color:rgba(198,255,61,.35);background:var(--bg-elev-2)}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  background:transparent;border:none;color:var(--text-1);text-align:left;cursor:pointer;
  padding:20px 22px;font-size:17px;font-weight:600;line-height:1.6;
}
.faq-q:hover{color:var(--brand)}
.faq-icon{position:relative;flex:0 0 20px;width:20px;height:20px}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform var(--ease),opacity var(--ease)}
.faq-icon::before{left:0;top:9px;width:20px;height:2px}
.faq-icon::after{left:9px;top:0;width:2px;height:20px}
.faq-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.faq-a{max-height:0;overflow:hidden;transition:max-height 220ms ease-out}
.faq-a-inner{padding:0 22px 22px;border-left:3px solid var(--brand);margin-left:22px;padding-left:18px}
.faq-a-inner p{font-size:15px;color:var(--text-2);line-height:1.85}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background-image:linear-gradient(90deg,rgba(10,13,15,.96) 0%,rgba(10,13,15,.88) 55%,rgba(10,13,15,.7) 100%),url("/assets/images/backpic/back-3.png");
  background-size:cover;background-position:center;
}
.cta-inner{display:grid;gap:44px;padding:88px 0}
@media screen and (min-width:64em){.cta-inner{grid-template-columns:1.05fr .95fr;gap:64px;align-items:start}}
.cta-copy h2{font-size:clamp(26px,3.4vw,40px);margin:16px 0 18px}
.cta-copy p{color:var(--text-2);font-size:16px;max-width:520px;margin-bottom:26px}
.cta-points{display:grid;gap:12px}
.cta-points li{font-size:15px;color:var(--text-2);padding-left:26px;position:relative}
.cta-points li::before{content:"";position:absolute;left:0;top:10px;width:8px;height:8px;border-radius:2px;background:var(--accent);box-shadow:0 0 10px rgba(255,90,46,.5)}
.form-card{
  background:rgba(18,23,26,.94);border:1px solid var(--line-strong);border-radius:var(--r-card);
  padding:30px 26px;box-shadow:0 20px 48px -18px rgba(0,0,0,.75);
}
.form-card h3{font-size:20px;margin-bottom:6px}
.form-card .form-sub{font-size:14px;color:var(--text-3);margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:7px}
.field input,.field select,.field textarea{
  width:100%;background:var(--bg-base);border:1px solid var(--line-strong);border-radius:var(--r-btn);
  color:var(--text-1);font-size:15px;padding:12px 14px;line-height:1.5;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:96px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field select:focus,.field textarea:focus{border-color:var(--brand);box-shadow:0 0 0 3px rgba(198,255,61,.16);outline:none}
.field-row{display:grid;gap:16px}
@media screen and (min-width:40em){.field-row{grid-template-columns:1fr 1fr}}
.form-card .btn{width:100%;margin-top:8px}
.form-tip{display:none;margin-top:14px;font-size:13px;color:var(--brand);border-left:3px solid var(--brand);padding-left:10px}

/* ---------- 页脚 ---------- */
.site-footer{position:relative;background:#0B0F11;border-top:1px solid var(--line);padding-top:72px}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(198,255,61,.55),rgba(255,90,46,.45),transparent);
}
.footer-top{padding-bottom:48px;border-bottom:1px solid var(--line)}
.footer-col h4{font-size:15px;font-weight:700;margin-bottom:18px;color:var(--text-1)}
.footer-col ul{display:grid;gap:11px}
.footer-col ul a{font-size:14px;color:var(--text-2)}
.footer-col ul a:hover{color:var(--brand)}
.footer-brand .logo-mark{display:block;font-size:18px;margin-bottom:16px}
.footer-brand p{font-size:14px;color:var(--text-2);max-width:340px;margin-bottom:20px}
.footer-contact{display:grid;gap:8px;font-size:13px;color:var(--text-3)}
.footer-contact b{color:var(--text-2);font-weight:600}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  padding:24px 0 34px;font-size:13px;color:var(--text-3);
}

/* ---------- 移动端 ---------- */
@media screen and (max-width:1023.98px){
  .nav-inner{height:68px;gap:12px}
  .nav-toggle{display:inline-flex;order:3}
  .nav-right{margin-left:auto}
  .nav-right .btn{display:none}
  .nav-links{
    position:fixed;top:0;right:0;z-index:90;
    width:min(320px,86vw);height:100vh;overflow-y:auto;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#0C1013;border-left:1px solid var(--line);
    padding:96px 22px 32px;
    transform:translateX(102%);transition:transform 220ms ease-out;
  }
  body.nav-open .nav-links{transform:translateX(0)}
  body.nav-open{overflow:hidden}
  .nav-link{font-size:18px;padding:14px 12px;border-left:3px solid transparent;border-radius:0}
  .nav-link.active::after{display:none}
  .nav-link.active{border-left-color:var(--brand);background:rgba(198,255,61,.06)}
  .section{padding:72px 0}
  .split-row{margin-bottom:64px;gap:28px}
}
@media screen and (max-width:39.94em){
  body{font-size:15px}
  .page-banner{min-height:0;padding:40px 0 48px}
  .banner-lead{font-size:16px}
  .banner-actions .btn{width:100%}
  .section{padding:56px 0}
  .section-tight{padding:48px 0}
  .section-head{margin-bottom:32px}
  .faq-q{font-size:16px;padding:18px}
  .faq-a-inner{margin-left:14px;padding:0 16px 18px}
  .form-card{padding:24px 18px}
  .metric-strip{padding:26px 20px}
  .cta-inner{padding:64px 0}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
}

/* roulang page: category1 */
:root{
  --bg-base:#0A0D0F;
  --bg-elev-1:#12171A;
  --bg-elev-2:#1A2024;
  --bg-reader:#14191C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --brand:#C6FF3D;
  --brand-deep:#8FCB12;
  --accent:#FF5A2E;
  --text-1:#F2F5F3;
  --text-2:#B6BFC2;
  --text-3:#7C8A8E;
  --glow:0 0 0 1px rgba(198,255,61,.35),0 0 24px rgba(198,255,61,.22);
  --radius-lg:20px;
  --radius-md:16px;
  --radius-sm:10px;
  --shadow-card:0 1px 2px rgba(0,0,0,.4);
  --shadow-hover:0 12px 32px -8px rgba(0,0,0,.6);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"Roboto Mono","Barlow Condensed",ui-monospace,SFMono-Regular,Menlo,monospace;
}

*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%;height:auto;}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}
button,input,textarea,select{font:inherit;color:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(198,255,61,.28);}

.grid-container.wide{max-width:1240px;padding-left:20px;padding-right:20px;margin-left:auto;margin-right:auto;}
@media screen and (min-width:64em){
  .grid-container.wide{padding-left:32px;padding-right:32px;}
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:120;
  background:rgba(10,13,15,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";position:absolute;left:0;right:0;bottom:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(198,255,61,.75),rgba(255,90,46,.75),transparent);
  pointer-events:none;
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:72px;}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0;}
.logo svg{width:38px;height:38px;flex-shrink:0;}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-mark{font-size:18px;font-weight:800;letter-spacing:.01em;color:var(--text-1);}
.logo-mark em{font-style:normal;color:var(--brand);}
.logo-sub{font-size:10px;letter-spacing:.18em;color:var(--text-3);text-transform:uppercase;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;border-radius:8px;
  font-size:15px;color:var(--text-2);
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.045);}
.nav-link.active{color:var(--brand);text-shadow:0 0 14px rgba(198,255,61,.45);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 10px rgba(198,255,61,.85);
}
.nav-right{display:flex;align-items:center;gap:24px;flex-shrink:0;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  border:1px solid var(--line-strong);background:rgba(255,255,255,.03);
  cursor:pointer;position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  content:"";position:absolute;left:50%;width:18px;height:2px;background:var(--text-1);
  transform:translateX(-50%);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{top:-6px;left:0;transform:none;}
.nav-toggle span::after{top:6px;left:0;transform:none;}
body.nav-open .nav-toggle span{background:transparent;}
body.nav-open .nav-toggle span::before{top:0;transform:rotate(45deg);}
body.nav-open .nav-toggle span::after{top:0;transform:rotate(-45deg);}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--radius-sm);
  border:1px solid transparent;font-size:15px;font-weight:700;line-height:1;
  cursor:pointer;white-space:nowrap;text-align:center;
  transition:transform .18s ease-out,background-color .18s ease-out,color .18s ease-out,box-shadow .18s ease-out,border-color .18s ease-out;
}
.btn-primary{background:var(--brand);color:#0A0D0F;}
.btn-primary:hover{background:#D6FF6E;box-shadow:var(--glow);transform:translateY(-2px);}
.btn-primary:active{transform:translateY(0);filter:brightness(.94);box-shadow:none;}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text-1);}
.btn-ghost:hover{border-color:var(--brand);background:rgba(198,255,61,.08);color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{height:40px;padding:0 18px;font-size:14px;}
.btn-block{width:100%;}

/* ---------- Hero ---------- */
.page-hero{position:relative;overflow:hidden;padding:104px 0 64px;background:var(--bg-base);}
.page-hero-media{
  position:absolute;inset:0;background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;opacity:.32;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(10,13,15,.97) 0%,rgba(10,13,15,.82) 52%,rgba(10,13,15,.42) 100%),
    repeating-linear-gradient(0deg,rgba(255,255,255,.045) 0 1px,transparent 1px 4px);
  pointer-events:none;
}
.page-hero .grid-container{position:relative;z-index:2;}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:20px;}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--text-2);}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--brand);
  padding:7px 14px;border:1px solid rgba(198,255,61,.35);border-radius:999px;
  background:rgba(198,255,61,.06);margin-bottom:22px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(198,255,61,.9);}
.page-hero h1{
  font-size:clamp(32px,5vw,54px);font-weight:800;line-height:1.15;letter-spacing:-.02em;
  max-width:820px;
}
.hero-lede{max-width:680px;margin-top:18px;font-size:18px;line-height:1.8;color:var(--text-2);}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:26px;}
.tag{
  font-size:13px;padding:7px 14px;border-radius:999px;
  border:1px solid var(--line-strong);color:var(--text-2);background:rgba(255,255,255,.03);
}
.tag:hover{border-color:rgba(198,255,61,.5);color:var(--brand);}

/* ---------- Stat band ---------- */
.stat-band{border-top:1px solid var(--line);border-bottom:1px solid var(--line);background:var(--bg-elev-1);}
.stat-grid{
  display:grid;grid-template-columns:repeat(4,1fr);gap:24px;
  padding:38px 0;
}
.stat-num{
  font-family:var(--font-mono);font-size:clamp(26px,3.2vw,38px);font-weight:700;
  color:var(--brand);line-height:1.15;letter-spacing:.02em;
}
.stat-num span{font-size:.55em;color:var(--text-2);margin-left:4px;}
.stat-label{font-size:13px;color:var(--text-3);letter-spacing:.06em;margin-top:6px;}
.stat-item{padding-left:18px;border-left:2px solid rgba(198,255,61,.28);}
.stat-item:first-child{padding-left:18px;}

/* ---------- Section ---------- */
.section{padding:92px 0;}
.section-tight{padding:72px 0;}
.section-head{max-width:720px;margin-bottom:44px;}
.section-head .eyebrow{margin-bottom:16px;}
.section-title{font-size:clamp(24px,3.2vw,36px);font-weight:800;line-height:1.25;letter-spacing:-.01em;}
.section-desc{margin-top:14px;color:var(--text-2);font-size:16.5px;}

/* ---------- Catalog ---------- */
.catalog-grid{display:grid;grid-template-columns:300px minmax(0,1fr);gap:32px;align-items:start;}
.filter-card{
  position:sticky;top:96px;
  background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-md);
  padding:22px;box-shadow:var(--shadow-card);
}
.filter-title{
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--text-3);
  margin-bottom:12px;
}
.filter-list{display:grid;gap:4px;margin-bottom:22px;}
.filter-list a{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:8px;font-size:14.5px;color:var(--text-2);
  border-left:2px solid transparent;
}
.filter-list a:hover{background:rgba(255,255,255,.045);color:var(--text-1);}
.filter-list a.is-current{
  color:var(--brand);background:rgba(198,255,61,.08);border-left-color:var(--brand);
}
.filter-list .count{font-family:var(--font-mono);font-size:12px;color:var(--text-3);}
.filter-divider{height:1px;background:var(--line);margin:18px 0;}
.filter-note{font-size:13px;color:var(--text-3);line-height:1.75;}

.device-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:24px;}
.device-card{
  display:flex;flex-direction:column;
  background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-md);
  overflow:hidden;box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.device-card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:rgba(198,255,61,.35);}
.device-thumb{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-elev-2);}
.device-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out,filter .3s ease-out;}
.device-card:hover .device-thumb img{transform:scale(1.04);filter:brightness(.92);}
.badge{
  position:absolute;top:14px;left:14px;font-size:12px;letter-spacing:.04em;
  padding:5px 12px;border-radius:999px;backdrop-filter:blur(6px);-webkit-backdrop-filter:blur(6px);
}
.badge-accent{border:1px solid rgba(255,90,46,.6);color:#FFB49C;background:rgba(255,90,46,.16);}
.badge-brand{border:1px solid rgba(198,255,61,.55);color:var(--brand);background:rgba(198,255,61,.12);}
.device-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1;}
.model{font-family:var(--font-mono);font-size:12px;letter-spacing:.1em;color:var(--accent);}
.device-body h3{font-size:20px;font-weight:700;line-height:1.4;margin:8px 0 14px;color:var(--text-1);}
.device-card:hover .device-body h3{color:var(--brand);}
.feature-list{display:grid;gap:8px;margin-bottom:18px;}
.feature-list li{position:relative;padding-left:18px;font-size:14.5px;line-height:1.7;color:var(--text-2);}
.feature-list li::before{
  content:"";position:absolute;left:0;top:9px;width:7px;height:7px;border-radius:2px;background:var(--brand);
}
.link-arrow{
  margin-top:auto;display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--brand);
}
.link-arrow i{transition:transform .18s ease-out;}
.link-arrow:hover i{transform:translateX(4px);}
.link-arrow:hover{text-shadow:0 0 14px rgba(198,255,61,.5);}

/* ---------- Insights ---------- */
.insight-row{
  display:grid;grid-template-columns:1.05fr .95fr;gap:44px;align-items:center;
  margin-bottom:64px;
}
.insight-row:last-child{margin-bottom:0;}
.insight-row.reverse .insight-text{order:2;}
.insight-row.reverse .insight-media{order:1;}
.insight-media img{border-radius:14px;width:100%;aspect-ratio:4/3;object-fit:cover;}
.insight-text h3{font-size:clamp(20px,2.4vw,26px);font-weight:800;line-height:1.35;margin-bottom:16px;}
.insight-text p{color:var(--text-2);font-size:16px;}
.check-list{display:grid;gap:10px;margin-top:20px;}
.check-list li{position:relative;padding-left:26px;font-size:15px;color:var(--text-2);}
.check-list li i{position:absolute;left:0;top:5px;color:var(--brand);font-size:13px;}

/* ---------- Steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:20px;}
.step-card{
  position:relative;padding:26px 24px 24px;
  background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-md);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.step-card:hover{transform:translateY(-3px);border-color:rgba(198,255,61,.35);box-shadow:var(--shadow-hover);}
.step-num{font-family:var(--font-mono);font-size:30px;font-weight:700;color:rgba(198,255,61,.45);line-height:1;}
.step-card h3{font-size:17px;font-weight:700;margin:14px 0 10px;}
.step-card p{font-size:14.5px;color:var(--text-2);line-height:1.75;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;}
.faq-item{
  background:var(--bg-elev-1);border:1px solid var(--line);border-radius:14px;
  margin-bottom:12px;overflow:hidden;transition:border-color .2s ease-out,background-color .2s ease-out;
}
.faq-item[open]{border-color:rgba(198,255,61,.35);background:var(--bg-elev-2);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;cursor:pointer;font-size:16.5px;font-weight:600;color:var(--text-1);
  list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";flex-shrink:0;font-size:22px;line-height:1;color:var(--brand);font-weight:400;
}
.faq-item[open] summary::after{content:"−";}
.faq-item summary:hover{color:var(--brand);}
.faq-answer{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2);}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;border:1px solid rgba(198,255,61,.28);border-radius:var(--radius-lg);
  padding:46px 44px;
  background:
    linear-gradient(135deg,rgba(198,255,61,.07),rgba(255,90,46,.05) 70%,rgba(198,255,61,.03)),
    var(--bg-elev-1);
  box-shadow:0 0 0 1px rgba(198,255,61,.08),0 24px 60px -30px rgba(198,255,61,.35);
}
.cta-head{max-width:640px;margin-bottom:34px;}
.cta-head h2{font-size:clamp(24px,3vw,34px);font-weight:800;line-height:1.25;}
.cta-head p{margin-top:14px;color:var(--text-2);font-size:16px;}
.form-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px 20px;}
.field{display:flex;flex-direction:column;}
.field.full{grid-column:1 / -1;}
.field label{font-size:13px;color:var(--text-3);margin-bottom:8px;letter-spacing:.04em;}
.field input,.field textarea{
  width:100%;background:rgba(255,255,255,.03);
  border:1px solid var(--line-strong);border-radius:var(--radius-sm);
  padding:13px 15px;font-size:15px;color:var(--text-1);
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out;
}
.field textarea{min-height:112px;resize:vertical;line-height:1.7;}
.field input::placeholder,.field textarea::placeholder{color:#5F6C70;}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:var(--glow);background:rgba(198,255,61,.04);
}
.form-foot{grid-column:1 / -1;display:flex;align-items:center;gap:18px;flex-wrap:wrap;margin-top:6px;}
.form-note{font-size:13px;color:var(--text-3);}
.form-msg{font-size:13.5px;color:var(--brand);display:none;}
.form-msg.show{display:block;}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;background:var(--bg-base);border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,rgba(198,255,61,.75),rgba(255,90,46,.75),transparent);
}
.footer-top{padding:72px 0 44px;}
.footer-col{margin-bottom:32px;}
.footer-brand .logo-mark{font-size:20px;display:inline-block;margin-bottom:16px;}
.footer-brand p{font-size:14.5px;color:var(--text-2);max-width:320px;line-height:1.8;}
.footer-contact{display:grid;gap:8px;margin-top:20px;font-size:14px;color:var(--text-3);}
.footer-contact b{color:var(--text-2);font-weight:600;}
.footer-col h4{font-size:14px;font-weight:700;color:var(--text-1);margin-bottom:16px;letter-spacing:.04em;}
.footer-col ul{display:grid;gap:10px;}
.footer-col ul a{font-size:14px;color:var(--text-2);}
.footer-col ul a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;
  padding:22px 0 34px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ---------- Responsive ---------- */
@media screen and (max-width:1024px){
  .nav-toggle{display:block;}
  .nav-links{
    position:fixed;top:72px;right:0;bottom:0;width:min(320px,86vw);
    flex-direction:column;align-items:stretch;gap:2px;
    padding:24px 20px 32px;
    background:rgba(10,13,15,.98);
    border-left:1px solid var(--line);
    transform:translateX(105%);
    transition:transform .24s ease-out;
    overflow-y:auto;
    box-shadow:-20px 0 60px -20px rgba(0,0,0,.8);
  }
  body.nav-open .nav-links{transform:translateX(0);}
  .nav-link{font-size:18px;padding:14px 16px;border-radius:0;border-left:3px solid transparent;}
  .nav-link.active{border-left-color:var(--brand);background:rgba(198,255,61,.07);}
  .nav-link.active::after{display:none;}
  .nav-right .btn{display:none;}
  .catalog-grid{grid-template-columns:1fr;}
  .filter-card{position:static;}
  .filter-list{grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;}
  .device-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .insight-row{grid-template-columns:1fr;gap:28px;}
  .insight-row.reverse .insight-text{order:1;}
  .insight-row.reverse .insight-media{order:2;}
}
@media screen and (max-width:768px){
  .section{padding:64px 0;}
  .section-tight{padding:52px 0;}
  .page-hero{padding:84px 0 48px;}
  .hero-lede{font-size:16.5px;}
  .stat-grid{grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;padding:32px 0;}
  .device-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .cta-band{padding:32px 22px;}
  .footer-top{padding:56px 0 28px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px;}
}
@media screen and (max-width:520px){
  .logo-sub{display:none;}
  .logo-mark{font-size:16px;}
  .filter-list{grid-template-columns:1fr;}
  .page-hero h1{font-size:32px;}
  .device-body{padding:18px;}
  .faq-item summary{font-size:15.5px;padding:16px 18px;}
  .faq-answer{padding:0 18px 18px;}
  .btn{width:100%;}
  .nav-right .btn{width:auto;}
}

/* roulang page: category3 */
/* ============ 设计变量 ============ */
:root{
  --bg-base:#0A0D0F;
  --bg-elev-1:#12171A;
  --bg-elev-2:#1A2024;
  --bg-reader:#14191C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --brand:#C6FF3D;
  --brand-deep:#8FCB12;
  --accent:#FF5A2E;
  --text-1:#F2F5F3;
  --text-2:#B6BFC2;
  --text-3:#7C8A8E;
  --glow:0 0 0 1px rgba(198,255,61,.35),0 0 24px rgba(198,255,61,.22);
  --shadow-card:0 1px 2px rgba(0,0,0,.4);
  --shadow-hover:0 12px 32px -8px rgba(0,0,0,.6);
  --r-lg:16px;
  --r-md:12px;
  --r-sm:10px;
  --sp-section:112px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-mono:"Roboto Mono","Barlow Condensed",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
}

/* ============ reset / base ============ */
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:var(--font-sans);
  font-size:17px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.2;letter-spacing:-.01em}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(198,255,61,.28);color:#0A0D0F}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--brand);outline-offset:2px;
}

/* ============ 容器 ============ */
.grid-container.wide{
  width:100%;
  max-width:1240px;
  margin-left:auto;
  margin-right:auto;
  padding-left:32px;
  padding-right:32px;
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:50px;
  padding:0 26px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:700;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,box-shadow .18s ease-out,color .18s ease-out;
}
.btn-sm{height:42px;padding:0 18px;font-size:14px;border-radius:9px}
.btn-primary{background:var(--brand);color:#0A0D0F}
.btn-primary:hover{background:#D6FF6B;box-shadow:var(--glow);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0);background:var(--brand-deep)}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text-1)}
.btn-ghost:hover{border-color:var(--brand);background:rgba(198,255,61,.08);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-block{width:100%}

/* ============ 导航 ============ */
.site-header{
  position:sticky;
  top:0;
  z-index:80;
  background:rgba(10,13,15,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
}
.site-header::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-1px;
  height:1px;
  background:linear-gradient(90deg,transparent,var(--brand),var(--accent),transparent);
  opacity:.7;
}
.nav-inner{
  display:flex;
  align-items:center;
  gap:16px;
  min-height:72px;
}
.logo{display:flex;align-items:center;gap:12px;flex-shrink:0}
.logo svg{width:38px;height:38px;flex-shrink:0}
.logo-text{display:flex;flex-direction:column;line-height:1.1}
.logo-mark{font-size:17px;font-weight:800;letter-spacing:.01em;color:var(--text-1);white-space:nowrap}
.logo-mark em{font-style:normal;color:var(--brand)}
.logo-sub{
  font-family:var(--font-mono);
  font-size:10px;
  letter-spacing:.16em;
  color:var(--text-3);
  text-transform:uppercase;
  margin-top:3px;
}
.nav-links{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;
  padding:10px 12px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  transition:color .18s ease-out,background-color .18s ease-out;
}
.nav-link::after{
  content:"";
  position:absolute;
  left:12px;right:12px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
  box-shadow:0 0 10px rgba(198,255,61,.6);
  transform:scaleX(0);
  transform-origin:left;
  transition:transform .2s ease-out;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.nav-link:hover::after{transform:scaleX(1)}
.nav-link.active{color:var(--brand);text-shadow:0 0 14px rgba(198,255,61,.35)}
.nav-link.active::after{transform:scaleX(1)}
.nav-right{display:flex;align-items:center;gap:16px;margin-left:8px}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:10px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  position:relative;
  cursor:pointer;
  transition:border-color .18s ease-out,background-color .18s ease-out;
}
.nav-toggle:hover{border-color:rgba(198,255,61,.5);background:rgba(198,255,61,.06)}
.nav-toggle span{
  position:absolute;left:50%;top:50%;
  width:18px;height:2px;
  background:var(--text-1);
  transform:translate(-50%,-50%);
  border-radius:2px;
  transition:background-color .2s ease-out;
}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";
  position:absolute;left:0;
  width:18px;height:2px;
  background:var(--text-1);
  border-radius:2px;
  transition:transform .2s ease-out;
}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
body.nav-open .nav-toggle span{background:transparent}
body.nav-open .nav-toggle span::before{transform:translateY(6px) rotate(45deg)}
body.nav-open .nav-toggle span::after{transform:translateY(-6px) rotate(-45deg)}

/* ============ Hero ============ */
.hero{position:relative;overflow:hidden;padding:104px 0 88px;isolation:isolate}
.hero-bg{
  position:absolute;inset:0;z-index:-2;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
}
.hero-bg::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(10,13,15,.97) 0%,rgba(10,13,15,.92) 42%,rgba(10,13,15,.62) 72%,rgba(10,13,15,.36) 100%);
}
.hero-grid{
  position:absolute;inset:0;z-index:-1;opacity:.05;
  background-image:
    linear-gradient(rgba(255,255,255,.7) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.7) 1px,transparent 1px);
  background-size:64px 64px;
}
.hero-inner{max-width:680px}
.breadcrumb{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
  font-size:14px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb a{transition:color .18s ease-out}
.breadcrumb a:hover{color:var(--brand)}
.breadcrumb .sep{opacity:.5}
.breadcrumb .current{color:var(--text-2);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;max-width:60vw}
.pill{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  border:1px solid rgba(198,255,61,.35);
  background:rgba(198,255,61,.06);
  font-size:12px;letter-spacing:.08em;color:var(--brand);
  margin-bottom:22px;
}
.pill::before{
  content:"";width:6px;height:6px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 10px rgba(198,255,61,.9);
}
.hero-title{
  font-size:clamp(32px,5vw,52px);
  line-height:1.15;
  letter-spacing:-.02em;
}
.hero-title .dot{color:var(--accent);margin:0 6px}
.hero-sub{
  margin-top:20px;
  font-size:clamp(16px,1.35vw,19px);
  color:var(--text-2);
  max-width:560px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-stats{
  display:flex;flex-wrap:wrap;
  margin-top:52px;padding-top:28px;
  border-top:1px solid var(--line);
  max-width:640px;
}
.hero-stat{
  flex:1 1 150px;
  padding-right:24px;margin-right:24px;
  border-right:1px solid var(--line);
}
.hero-stat:last-child{border-right:0;margin-right:0;padding-right:0}
.hero-stat b{
  display:block;
  font-family:var(--font-mono);
  font-size:28px;font-weight:700;
  color:var(--brand);line-height:1.2;
  letter-spacing:.01em;
}
.hero-stat span{font-size:13px;color:var(--text-3);line-height:1.5;display:block;margin-top:4px}

/* ============ 板块通用 ============ */
.section{padding:var(--sp-section) 0;position:relative}
.section.tight{padding-top:76px;padding-bottom:0}
.section-head{max-width:760px;margin-bottom:52px}
.eyebrow{
  display:inline-flex;align-items:center;gap:10px;
  font-family:var(--font-mono);
  font-size:12px;letter-spacing:.18em;
  color:var(--brand);text-transform:uppercase;
  margin-bottom:16px;
}
.eyebrow::before{
  content:"";width:26px;height:1px;
  background:var(--brand);box-shadow:0 0 8px rgba(198,255,61,.8);
}
.section-title{font-size:clamp(24px,3.2vw,34px);line-height:1.25}
.section-desc{margin-top:18px;color:var(--text-2);font-size:16px;max-width:680px}

/* 品牌主张条 */
.claim{
  margin:0 auto;
  max-width:880px;
  border-left:3px solid var(--brand);
  padding:4px 0 4px 22px;
  font-size:clamp(18px,2vw,24px);
  font-weight:700;
  letter-spacing:.02em;
  color:var(--text-1);
}
.claim small{
  display:block;
  margin-top:10px;
  font-family:var(--font-mono);
  font-size:12px;font-weight:400;
  letter-spacing:.18em;
  color:var(--text-3);
}

/* ============ 卡片 ============ */
.card{
  background:var(--bg-elev-1);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:24px;
  box-shadow:var(--shadow-card);
  height:100%;
  display:flex;
  flex-direction:column;
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.card:hover{
  transform:translateY(-3px);
  border-color:var(--line-strong);
  box-shadow:var(--shadow-hover);
}
.card h3{font-size:20px;margin:14px 0 10px}
.card p{color:var(--text-2);font-size:15px;flex-grow:1}
.card-body{margin-top:18px;display:flex;flex-direction:column;flex-grow:1}
.media{
  border-radius:var(--r-md);
  overflow:hidden;
  background:var(--bg-elev-2);
  aspect-ratio:16/9;
}
.media img{width:100%;height:100%;object-fit:cover;transition:transform .35s ease-out}
.card:hover .media img{transform:scale(1.03)}
.badge{
  display:inline-flex;align-items:center;
  padding:4px 11px;border-radius:999px;
  font-size:12px;letter-spacing:.08em;
  border:1px solid;width:fit-content;
}
.badge-brand{color:var(--brand);border-color:rgba(198,255,61,.4);background:rgba(198,255,61,.07)}
.badge-accent{color:var(--accent);border-color:rgba(255,90,46,.4);background:rgba(255,90,46,.07)}
.text-link{
  display:inline-flex;align-items:center;gap:6px;
  margin-top:18px;
  font-size:14px;color:var(--brand);
  border-bottom:1px solid rgba(198,255,61,.35);
  padding-bottom:2px;
  width:fit-content;
  transition:border-color .18s ease-out,transform .18s ease-out;
}
.text-link:hover{border-color:var(--brand);transform:translateX(4px)}

/* ============ 指标栅格 ============ */
.metric-grid{display:grid;grid-template-columns:repeat(12,1fr);gap:20px}
.metric-grid .m-large{grid-column:span 6}
.metric-grid .m-small{grid-column:span 3}

/* ============ 场景交替分节 ============ */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:56px;
  align-items:center;
  padding:44px 0;
  border-top:1px solid var(--line);
}
.split:last-child{border-bottom:1px solid var(--line)}
.split.reverse .split-media{order:-1}
.split-num{
  font-family:var(--font-mono);
  font-size:13px;letter-spacing:.22em;
  color:var(--accent);
}
.split h3{font-size:clamp(20px,2.4vw,25px);margin:14px 0 14px}
.split p{color:var(--text-2);font-size:16px}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{position:relative;padding-left:24px;color:var(--text-2);font-size:15px;line-height:1.75}
.check-list li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:2px;
  background:var(--brand);box-shadow:0 0 8px rgba(198,255,61,.55);
}

/* ============ 心率区间 ============ */
.zone-list{display:grid;gap:14px}
.zone-row{
  display:grid;
  grid-template-columns:150px 1fr 86px;
  gap:18px;align-items:center;
  background:var(--bg-elev-1);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  padding:16px 20px;
  transition:border-color .2s ease-out,transform .2s ease-out;
}
.zone-row:hover{border-color:var(--line-strong);transform:translateX(4px)}
.zone-name{font-weight:700;font-size:15px;line-height:1.35}
.zone-name small{
  display:block;font-weight:400;font-size:12px;
  color:var(--text-3);font-family:var(--font-mono);letter-spacing:.06em;
}
.zone-track{height:8px;border-radius:999px;background:rgba(255,255,255,.07);overflow:hidden}
.zone-fill{height:100%;border-radius:999px;background:linear-gradient(90deg,var(--brand-deep),var(--brand))}
.zone-fill.z3{background:linear-gradient(90deg,var(--brand),#D9F05A)}
.zone-fill.z4{background:linear-gradient(90deg,#D9F05A,#FFC53D)}
.zone-fill.z5{background:linear-gradient(90deg,#FFC53D,var(--accent))}
.zone-pct{font-family:var(--font-mono);font-size:15px;color:var(--brand);text-align:right}

/* ============ 流程 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.step{
  position:relative;
  padding:28px 22px 24px;
  border-radius:var(--r-lg);
  background:var(--bg-elev-1);
  border:1px solid var(--line);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.step:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover)}
.step::before{
  content:"";position:absolute;left:22px;top:0;
  width:38px;height:3px;border-radius:0 0 3px 3px;
  background:var(--brand);box-shadow:0 0 12px rgba(198,255,61,.7);
}
.step b{
  display:block;margin-bottom:12px;
  font-family:var(--font-mono);font-size:12px;
  letter-spacing:.22em;color:var(--text-3);
}
.step h4{font-size:18px;margin-bottom:10px}
.step p{font-size:14px;color:var(--text-2);line-height:1.75}

/* ============ FAQ ============ */
.faq{display:grid;gap:12px;max-width:900px}
.faq-item{
  background:var(--bg-elev-1);
  border:1px solid var(--line);
  border-radius:var(--r-md);
  overflow:hidden;
  transition:border-color .2s ease-out,background-color .2s ease-out;
}
.faq-item.is-open{border-color:rgba(198,255,61,.35);background:var(--bg-elev-2)}
.faq-q{
  width:100%;
  display:flex;justify-content:space-between;align-items:center;gap:20px;
  padding:20px 22px;
  background:none;border:0;
  text-align:left;
  font-size:16px;font-weight:600;
  color:var(--text-1);
  cursor:pointer;
  transition:color .18s ease-out;
}
.faq-q:hover{color:var(--brand)}
.faq-q .ic{
  position:relative;flex-shrink:0;
  width:20px;height:20px;border-radius:50%;
  border:1px solid rgba(198,255,61,.5);
}
.faq-q .ic::before,.faq-q .ic::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--brand);transform:translate(-50%,-50%);
}
.faq-q .ic::before{width:9px;height:1.5px}
.faq-q .ic::after{width:1.5px;height:9px;transition:transform .2s ease-out}
.faq-item.is-open .faq-q .ic::after{transform:translate(-50%,-50%) scaleY(0)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.faq-item.is-open .faq-a{max-height:420px}
.faq-a p{padding:0 22px 22px;color:var(--text-2);font-size:15px;line-height:1.85}

/* ============ CTA ============ */
.cta-band{
  position:relative;
  border-radius:24px;
  border:1px solid rgba(198,255,61,.3);
  background:
    radial-gradient(120% 140% at 10% 0%,rgba(198,255,61,.13),transparent 58%),
    linear-gradient(180deg,#131A1C,#0E1214);
  padding:52px;
  overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background-image:linear-gradient(rgba(255,255,255,.5) 1px,transparent 1px);
  background-size:100% 6px;
  opacity:.04;
}
.cta-grid{
  position:relative;z-index:1;
  display:grid;grid-template-columns:1fr 1fr;
  gap:52px;align-items:start;
}
.cta-copy h2{font-size:clamp(24px,3vw,32px)}
.cta-copy p{margin-top:18px;color:var(--text-2);font-size:16px}
.cta-points{margin-top:26px;display:grid;gap:12px}
.cta-points li{position:relative;padding-left:24px;font-size:15px;color:var(--text-2)}
.cta-points li::before{
  content:"";position:absolute;left:0;top:11px;
  width:8px;height:8px;border-radius:2px;background:var(--accent);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.field{display:flex;flex-direction:column;gap:8px}
.field.full{grid-column:1 / -1}
.field label{font-size:13px;color:var(--text-2);letter-spacing:.02em}
.field input,.field textarea,.field select{
  width:100%;
  height:48px;
  border-radius:var(--r-sm);
  background:rgba(255,255,255,.03);
  border:1px solid var(--line-strong);
  padding:0 14px;
  font-size:15px;
  transition:border-color .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out;
}
.field textarea{height:104px;padding:12px 14px;resize:vertical;line-height:1.7}
.field input::placeholder,.field textarea::placeholder{color:#5D686B}
.field input:focus,.field textarea:focus,.field select:focus{
  border-color:var(--brand);
  box-shadow:var(--glow);
  background:rgba(198,255,61,.05);
  outline:none;
}
.field select option{background:#12171A;color:var(--text-1)}
.form-note{
  grid-column:1 / -1;
  font-size:14px;color:var(--brand);
  margin-top:4px;
}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;
  margin-top:56px;
  background:#080B0C;
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;left:0;right:0;top:-1px;height:1px;
  background:linear-gradient(90deg,transparent,var(--brand),var(--accent),transparent);
  opacity:.7;
}
.footer-top{padding:64px 0 44px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text-1)}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14px;color:var(--text-2);transition:color .18s ease-out}
.footer-col a:hover{color:var(--brand)}
.footer-brand .logo-mark{font-size:18px}
.footer-brand p{margin-top:14px;color:var(--text-3);font-size:14px;max-width:330px;line-height:1.8}
.footer-contact{margin-top:18px;display:grid;gap:8px;font-size:14px;color:var(--text-3)}
.footer-contact b{color:var(--text-2);font-weight:600}
.footer-col{margin-bottom:28px}
.footer-bottom{
  display:flex;flex-wrap:wrap;gap:12px;
  justify-content:space-between;align-items:center;
  padding:22px 0 30px;
  border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  :root{--sp-section:76px}
  .nav-links{
    position:fixed;
    top:0;right:0;
    height:100vh;
    width:min(320px,86vw);
    background:#0C1013;
    border-left:1px solid var(--line);
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:92px 24px 32px;
    margin-left:0;
    transform:translateX(100%);
    transition:transform .24s ease-out;
    z-index:70;
    overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0)}
  .nav-link{
    font-size:17px;
    padding:15px 14px;
    border-radius:0;
    border-bottom:1px solid var(--line);
  }
  .nav-link::after{
    left:0;top:12px;bottom:12px;
    width:3px;height:auto;right:auto;
    transform:scaleY(0);
    transform-origin:top;
    box-shadow:0 0 12px rgba(198,255,61,.6);
  }
  .nav-link:hover::after,.nav-link.active::after{transform:scaleY(1)}
  .nav-toggle{display:block;margin-left:auto}
  .nav-right{gap:12px;margin-left:0}
  .nav-right .btn{display:none}
  .split{grid-template-columns:1fr;gap:28px;padding:36px 0}
  .split.reverse .split-media{order:0}
  .steps{grid-template-columns:repeat(2,1fr)}
  .metric-grid .m-large{grid-column:span 12}
  .metric-grid .m-small{grid-column:span 6}
  .cta-grid{grid-template-columns:1fr;gap:34px}
  .cta-band{padding:40px 32px}
}

@media screen and (max-width:767px){
  :root{--sp-section:56px}
  body{font-size:16px}
  .grid-container.wide{padding-left:20px;padding-right:20px}
  .hero{padding:60px 0 56px}
  .hero-stats{gap:20px;margin-top:38px;padding-top:22px}
  .hero-stat{
    flex:1 1 40%;
    border-right:0;margin-right:0;padding-right:0;
  }
  .hero-stat b{font-size:24px}
  .logo-sub{display:none}
  .logo-mark{font-size:15px}
  .section-head{margin-bottom:34px}
  .metric-grid .m-small{grid-column:span 12}
  .steps{grid-template-columns:1fr}
  .form-grid{grid-template-columns:1fr}
  .cta-band{padding:30px 22px;border-radius:18px}
  .zone-row{grid-template-columns:1fr;gap:10px}
  .zone-pct{text-align:left}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .breadcrumb .current{max-width:52vw}
}

@media screen and (max-width:400px){
  .hero-title .dot{display:none}
  .hero-title span{display:block}
}

/* roulang page: category4 */
:root{
  --bg-base:#0A0D0F;
  --bg-elev-1:#12171A;
  --bg-elev-2:#1A2024;
  --bg-reader:#14191C;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --brand:#C6FF3D;
  --brand-deep:#8FCB12;
  --accent:#FF5A2E;
  --text-1:#F2F5F3;
  --text-2:#B6BFC2;
  --text-3:#7C8A8E;
  --glow:0 0 0 1px rgba(198,255,61,.35), 0 0 24px rgba(198,255,61,.22);
  --radius-card:16px;
  --radius-btn:10px;
  --radius-img:14px;
  --shadow-card:0 1px 2px rgba(0,0,0,.4);
  --shadow-hover:0 12px 32px -8px rgba(0,0,0,.6);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Noto Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-mono:"Barlow Condensed","Roboto Mono",ui-monospace,SFMono-Regular,Menlo,monospace;
  --sec-y:104px;
}

*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg-base);
  color:var(--text-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.85;
  letter-spacing:0;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;border-radius:var(--radius-img);}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,border-color .18s ease-out,background-color .18s ease-out,transform .18s ease-out;}
a:hover,a:focus{color:var(--brand);}
h1,h2,h3,h4{margin:0;font-weight:800;line-height:1.22;letter-spacing:-.01em;color:var(--text-1);}
h1{font-size:clamp(32px,5vw,56px);letter-spacing:-.02em;line-height:1.14;}
h2{font-size:clamp(24px,3.2vw,36px);}
h3{font-size:20px;}
h4{font-size:16px;font-weight:700;}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font:inherit;color:inherit;border-radius:var(--radius-btn);}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}
::selection{background:rgba(198,255,61,.28);}

.grid-container{max-width:1240px;padding-left:20px;padding-right:20px;}
.grid-container.wide{max-width:1320px;}

/* ---------- Header ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,13,15,.86);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
}
.site-header::after{
  content:"";display:block;height:1px;
  background:linear-gradient(90deg,transparent,rgba(198,255,61,.75),rgba(255,90,46,.7),transparent);
}
.nav-inner{
  display:flex;align-items:center;justify-content:space-between;gap:24px;
  min-height:72px;
}
.logo{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.logo svg{width:40px;height:40px;flex:0 0 auto;}
.logo-text{display:flex;flex-direction:column;line-height:1.2;}
.logo-mark{font-size:17px;font-weight:800;color:var(--text-1);letter-spacing:.01em;white-space:nowrap;}
.logo-mark em{font-style:normal;color:var(--brand);}
.logo-sub{font-family:var(--font-mono);font-size:10px;letter-spacing:.22em;text-transform:uppercase;color:var(--text-3);}

.nav-links{display:flex;align-items:center;gap:6px;flex:1 1 auto;justify-content:center;}
.nav-link{
  position:relative;padding:10px 14px;border-radius:8px;
  font-size:15px;color:var(--text-2);white-space:nowrap;
}
.nav-link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--accent));
  opacity:0;transform:scaleX(.4);transition:opacity .18s ease-out,transform .18s ease-out;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.04);}
.nav-link:hover::after{opacity:.55;transform:scaleX(1);}
.nav-link.active{color:var(--brand);text-shadow:0 0 14px rgba(198,255,61,.5);}
.nav-link.active::after{opacity:1;transform:scaleX(1);box-shadow:0 0 12px rgba(198,255,61,.6);}

.nav-right{display:flex;align-items:center;gap:18px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--line-strong);background:transparent;
  border-radius:10px;cursor:pointer;position:relative;
}
.nav-toggle span,.nav-toggle span::before,.nav-toggle span::after{
  position:absolute;left:11px;width:20px;height:2px;background:var(--text-1);border-radius:2px;content:"";
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle span{top:20px;}
.nav-toggle span::before{top:-6px;left:0;}
.nav-toggle span::after{top:6px;left:0;}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:50px;padding:0 24px;border-radius:var(--radius-btn);
  font-weight:700;font-size:15px;border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn-sm{min-height:42px;padding:0 18px;font-size:14px;}
.btn-primary{background:var(--brand);color:#0A0D0F;}
.btn-primary:hover{background:#D6FF6B;color:#0A0D0F;transform:translateY(-2px);box-shadow:var(--glow);}
.btn-primary:active{transform:translateY(0);background:var(--brand-deep);}
.btn-ghost{background:transparent;border-color:rgba(255,255,255,.18);color:var(--text-1);}
.btn-ghost:hover{border-color:var(--brand);background:rgba(198,255,61,.08);color:var(--brand);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-block{width:100%;}

.text-link{
  display:inline-flex;align-items:center;gap:8px;font-size:14px;font-weight:600;color:var(--text-1);
  border-bottom:1px solid rgba(255,255,255,.28);padding-bottom:3px;
}
.text-link i{transition:transform .18s ease-out;}
.text-link:hover{color:var(--brand);border-color:var(--brand);}
.text-link:hover i{transform:translateX(4px);}

/* ---------- Common blocks ---------- */
.section{padding:var(--sec-y) 0;}
.section-alt{background:linear-gradient(180deg,rgba(18,23,26,.9),rgba(10,13,15,.9));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:52px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-family:var(--font-mono);font-size:12px;letter-spacing:.2em;text-transform:uppercase;
  color:var(--brand);margin-bottom:16px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--brand);}
.section-head h2{margin-bottom:16px;}
.section-head p{color:var(--text-2);font-size:16.5px;max-width:680px;}

.pill{
  display:inline-flex;align-items:center;gap:9px;
  padding:7px 15px;border-radius:999px;border:1px solid rgba(198,255,61,.35);
  font-size:12.5px;letter-spacing:.06em;color:var(--text-1);background:rgba(198,255,61,.06);
}
.pill .dot{width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 10px rgba(198,255,61,.85);}
.badge{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  font-size:12px;letter-spacing:.08em;line-height:1.7;
}
.badge-brand{border:1px solid rgba(198,255,61,.5);color:var(--brand);background:rgba(198,255,61,.07);}
.badge-accent{border:1px solid rgba(255,90,46,.5);color:var(--accent);background:rgba(255,90,46,.07);}

.card{
  background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:24px;box-shadow:var(--shadow-card);
  transition:transform .2s ease-out,box-shadow .2s ease-out,border-color .2s ease-out;
}
.card:hover{transform:translateY(-3px);box-shadow:var(--shadow-hover);border-color:var(--line-strong);}
.card h3{margin-bottom:12px;}
.card p{color:var(--text-2);font-size:15.5px;}

.check-list{margin-top:18px;display:grid;gap:10px;}
.check-list li{position:relative;padding-left:22px;color:var(--text-2);font-size:15px;line-height:1.75;}
.check-list li::before{
  content:"";position:absolute;left:0;top:11px;width:9px;height:9px;border-radius:3px;
  background:var(--brand);opacity:.85;
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:88px 0 76px;
  background-color:var(--bg-elev-2);
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:
    linear-gradient(90deg,rgba(10,13,15,.96) 0%,rgba(10,13,15,.82) 48%,rgba(10,13,15,.55) 100%),
    repeating-linear-gradient(180deg,rgba(255,255,255,.04) 0 1px,transparent 1px 4px);
  background-size:auto,auto;
  opacity:1;pointer-events:none;
}
.page-hero .hero-inner{position:relative;z-index:2;}
.crumb{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-3);margin-bottom:26px;flex-wrap:wrap;}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--brand);}
.crumb .current{color:var(--text-2);}
.hero-lead{
  margin-top:20px;max-width:620px;font-size:18px;line-height:1.8;color:var(--text-2);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:32px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:0;margin-top:52px;
  border-top:1px solid var(--line);padding-top:26px;max-width:760px;
}
.hero-stats .stat{
  padding-right:38px;margin-right:38px;border-right:1px solid var(--line);
}
.hero-stats .stat:last-child{border-right:none;margin-right:0;padding-right:0;}
.hero-stats b{
  display:block;font-family:var(--font-mono);font-size:30px;line-height:1.2;color:var(--brand);
  letter-spacing:.02em;
}
.hero-stats span{font-size:13.5px;color:var(--text-3);}

/* ---------- Channels ---------- */
.channels{margin-top:0;}
.card-feature{padding:0;overflow:hidden;display:flex;flex-direction:column;height:100%;}
.card-feature img{width:100%;height:290px;object-fit:cover;border-radius:0;}
.card-feature .card-body{padding:28px;display:flex;flex-direction:column;gap:14px;flex:1 1 auto;}
.card-feature .card-body .text-link{align-self:flex-start;}
.stack{display:grid;gap:20px;height:100%;}
.card-mini{display:flex;flex-direction:column;gap:12px;}
.card-mini .ico{
  width:44px;height:44px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  background:rgba(255,90,46,.1);color:var(--accent);font-size:18px;border:1px solid rgba(255,90,46,.28);
}
.card-mini.brand .ico{background:rgba(198,255,61,.1);color:var(--brand);border-color:rgba(198,255,61,.3);}

/* ---------- Timeline ---------- */
.timeline{display:grid;grid-template-columns:repeat(5,1fr);gap:0;margin-top:8px;}
.tl-item{position:relative;padding:40px 22px 0 0;}
.tl-item::before{
  content:"";position:absolute;left:24px;right:0;top:9px;height:1px;background:var(--line-strong);
}
.tl-item:last-child::before{right:auto;width:0;}
.tl-dot{
  position:absolute;left:0;top:0;width:19px;height:19px;border-radius:50%;
  border:1px solid rgba(198,255,61,.45);background:var(--bg-base);display:flex;align-items:center;justify-content:center;
}
.tl-dot::after{content:"";width:7px;height:7px;border-radius:50%;background:var(--brand);box-shadow:0 0 12px rgba(198,255,61,.8);}
.tl-num{
  font-family:var(--font-mono);font-size:26px;color:rgba(242,245,243,.22);line-height:1;margin-bottom:12px;
}
.tl-item h3{font-size:17px;margin-bottom:10px;}
.tl-item p{font-size:14.5px;color:var(--text-2);line-height:1.8;}

/* ---------- Qualifications ---------- */
.qual-card{padding:0;overflow:hidden;display:flex;flex-direction:column;height:100%;}
.qual-card img{width:100%;height:100%;min-height:260px;object-fit:cover;border-radius:0;}
.qual-body{padding:26px;display:flex;flex-direction:column;gap:14px;}
.qual-grid{display:grid;grid-template-columns:1fr 1fr;gap:20px;height:100%;}
.qual-mini{
  background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:20px;display:flex;flex-direction:column;gap:8px;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.qual-mini:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow-hover);}
.qual-mini .mark{
  font-family:var(--font-mono);font-size:12px;letter-spacing:.18em;color:var(--brand);text-transform:uppercase;
}
.qual-mini h4{font-size:16px;}
.qual-mini p{font-size:14.5px;color:var(--text-2);line-height:1.78;}

/* ---------- Split feature ---------- */
.split{align-items:center;}
.split-media{position:relative;}
.split-media img{width:100%;height:340px;object-fit:cover;}
.split-media .tag-float{
  position:absolute;left:18px;bottom:18px;padding:8px 14px;border-radius:999px;
  background:rgba(10,13,15,.82);border:1px solid rgba(198,255,61,.4);color:var(--brand);
  font-size:12.5px;letter-spacing:.06em;backdrop-filter:blur(6px);
}
.split-copy{display:flex;flex-direction:column;gap:18px;padding-left:12px;}
.split-copy h2{font-size:clamp(22px,2.6vw,30px);}
.split-copy p{color:var(--text-2);font-size:16px;}

/* ---------- FAQ ---------- */
.faq-list{display:grid;gap:14px;max-width:920px;margin:0 auto;}
.faq-item{
  background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-card);
  overflow:hidden;transition:border-color .2s ease-out,background-color .2s ease-out;
}
.faq-item[open]{background:var(--bg-elev-2);border-color:var(--line-strong);border-left:3px solid var(--brand);}
.faq-item summary{
  list-style:none;cursor:pointer;padding:20px 24px;display:flex;align-items:center;justify-content:space-between;gap:18px;
  font-size:16.5px;font-weight:600;color:var(--text-1);
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary:hover{color:var(--brand);}
.faq-item summary .sign{
  position:relative;flex:0 0 auto;width:22px;height:22px;border-radius:50%;
  border:1px solid var(--line-strong);display:flex;align-items:center;justify-content:center;
}
.faq-item summary .sign::before,
.faq-item summary .sign::after{
  content:"";position:absolute;background:var(--brand);border-radius:2px;transition:transform .2s ease-out,opacity .2s ease-out;
}
.faq-item summary .sign::before{width:10px;height:1.6px;}
.faq-item summary .sign::after{width:1.6px;height:10px;}
.faq-item[open] summary .sign::after{transform:scaleY(0);opacity:0;}
.faq-answer{padding:0 24px 22px;color:var(--text-2);font-size:15.5px;line-height:1.85;}

/* ---------- Contact ---------- */
.contact-wrap{display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);gap:36px;align-items:start;}
.form-card{background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-card);padding:32px;}
.form-row{margin-bottom:18px;}
.form-row label{display:block;font-size:13px;color:var(--text-3);margin-bottom:8px;letter-spacing:.04em;}
.form-row input,.form-row select,.form-row textarea{
  width:100%;background:var(--bg-base);border:1px solid var(--line-strong);border-radius:var(--radius-btn);
  padding:13px 15px;font-size:15px;color:var(--text-1);transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.form-row textarea{min-height:118px;resize:vertical;}
.form-row input::placeholder,.form-row textarea::placeholder{color:#5C686B;}
.form-row input:focus,.form-row select:focus,.form-row textarea:focus{
  outline:none;border-color:var(--brand);box-shadow:0 0 0 3px rgba(198,255,61,.14);
}
.form-grid{display:grid;grid-template-columns:1fr 1fr;gap:0 18px;}
.form-hint{font-size:13px;color:var(--text-3);margin-top:14px;line-height:1.7;}
.form-side{display:flex;flex-direction:column;gap:22px;}
.side-card{background:var(--bg-elev-1);border:1px solid var(--line);border-radius:var(--radius-card);padding:24px;}
.side-card h3{font-size:18px;margin-bottom:14px;}
.info-line{display:flex;gap:12px;padding:12px 0;border-bottom:1px dashed var(--line);font-size:15px;color:var(--text-2);}
.info-line:last-child{border-bottom:none;}
.info-line i{color:var(--brand);width:18px;text-align:center;margin-top:6px;}
.info-line b{color:var(--text-1);font-weight:600;}

/* ---------- CTA band ---------- */
.cta-band{
  border:1px solid rgba(198,255,61,.3);border-radius:22px;padding:44px;
  background:
    radial-gradient(120% 160% at 0% 0%,rgba(198,255,61,.1),transparent 55%),
    radial-gradient(120% 160% at 100% 100%,rgba(255,90,46,.1),transparent 55%),
    var(--bg-elev-1);
  display:flex;align-items:center;justify-content:space-between;gap:32px;flex-wrap:wrap;
  box-shadow:0 0 46px -22px rgba(198,255,61,.6);
}
.cta-band h2{font-size:clamp(22px,2.6vw,30px);margin-bottom:10px;}
.cta-band p{color:var(--text-2);max-width:560px;font-size:15.5px;}

/* ---------- Footer ---------- */
.site-footer{
  position:relative;background:#080B0C;margin-top:var(--sec-y);
  padding-top:64px;border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;top:-1px;left:0;right:0;height:1px;
  background:linear-gradient(90deg,transparent,rgba(198,255,61,.8),rgba(255,90,46,.7),transparent);
}
.footer-top{padding-bottom:44px;}
.footer-col{margin-bottom:32px;}
.footer-brand .logo-mark{display:block;font-size:18px;margin-bottom:16px;}
.footer-brand p{color:var(--text-2);font-size:14.5px;max-width:330px;line-height:1.85;}
.footer-contact{display:grid;gap:8px;margin-top:20px;font-size:14px;color:var(--text-3);}
.footer-contact b{color:var(--text-1);font-weight:600;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text-1);}
.footer-col ul{display:grid;gap:11px;}
.footer-col ul a{font-size:14.5px;color:var(--text-3);}
.footer-col ul a:hover{color:var(--brand);}
.footer-bottom{
  border-top:1px solid var(--line);padding:22px 0 30px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}

/* ---------- Responsive ---------- */
@media screen and (max-width:1023px){
  :root{--sec-y:80px;}
  .nav-toggle{display:block;}
  .nav-links{
    position:fixed;top:72px;right:0;width:min(340px,86vw);height:calc(100vh - 72px);
    background:rgba(10,13,15,.98);backdrop-filter:blur(14px);
    flex-direction:column;align-items:stretch;justify-content:flex-start;gap:4px;
    padding:22px 20px 40px;border-left:1px solid var(--line);
    transform:translateX(104%);transition:transform .24s ease-out;overflow-y:auto;
  }
  body.nav-open .nav-links{transform:translateX(0);}
  .nav-link{padding:14px 16px;font-size:18px;border-left:3px solid transparent;border-radius:0 8px 8px 0;}
  .nav-link::after{display:none;}
  .nav-link.active{border-left-color:var(--brand);background:rgba(198,255,61,.06);}
  .nav-inner>.nav-right .btn{display:none;}
  .timeline{grid-template-columns:repeat(2,1fr);gap:8px 24px;}
  .tl-item{padding:38px 16px 8px 0;}
  .tl-item::before{left:24px;}
  .tl-item:nth-child(2n)::before{right:0;}
  .contact-wrap{grid-template-columns:1fr;}
  .split-copy{padding-left:0;margin-top:26px;}
}
@media screen and (max-width:767px){
  :root{--sec-y:64px;}
  body{font-size:15.5px;}
  .page-hero{padding:64px 0 56px;}
  .hero-stats{gap:22px 0;padding-top:22px;}
  .hero-stats .stat{padding-right:22px;margin-right:22px;}
  .hero-stats b{font-size:24px;}
  .timeline{grid-template-columns:1fr;}
  .tl-item{padding:36px 0 6px 0;}
  .tl-item::before{left:24px;right:auto;width:1px;top:24px;bottom:0;height:auto;}
  .tl-item:last-child::before{display:none;}
  .qual-grid{grid-template-columns:1fr;}
  .form-grid{grid-template-columns:1fr;}
  .form-card{padding:24px;}
  .cta-band{padding:28px;}
  .cta-band .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .card-feature img{height:220px;}
}
@media screen and (max-width:519px){
  .logo-sub{display:none;}
  .logo-mark{font-size:15.5px;}
  h1{font-size:30px;}
  .hero-stats{flex-direction:column;border-top:none;padding-top:6px;}
  .hero-stats .stat{border-right:none;border-left:2px solid var(--line-strong);padding:0 0 0 14px;margin:0;}
  .hero-actions .btn{width:100%;}
  .faq-item summary{padding:16px 18px;font-size:15.5px;}
  .faq-answer{padding:0 18px 18px;}
}