/* roulang page: index */
:root{
  --bg-0:#0A1310;
  --bg-1:#122019;
  --panel:#13251F;
  --panel-2:#172C25;
  --line:#1F3A32;
  --brand:#C7F24E;
  --brand-hi:#D8FF6A;
  --accent:#FF7A2F;
  --violet:#7A5CFF;
  --paper:#F7F4EC;
  --paper-ink:#23282A;
  --paper-dim:#5C6660;
  --text:#EAF6F1;
  --text-dim:#9DB4AC;
  --r-card:14px;
  --r-hero:22px;
  --r-btn:10px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --ring:inset 0 0 0 1px rgba(199,242,78,.12);
  --section:88px;
  --bs-body-bg:transparent;
  --bs-body-color:#EAF6F1;
  --bs-link-color:#C7F24E;
  --bs-link-hover-color:#D8FF6A;
  --bs-border-color:#1F3A32;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"HarmonyOS Sans","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background:linear-gradient(135deg,#0A1310 0%,#122019 60%,#0E1A15 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--brand);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease}
a:hover{color:var(--brand-hi);text-decoration:underline;text-underline-offset:3px}
button,input,select,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{font-weight:800;letter-spacing:.01em;line-height:1.35;margin:0}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--section) 0}
.section--tight{padding:60px 0}
.section-head{max-width:760px;margin-bottom:44px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--brand);
  background:rgba(199,242,78,.08);
  border:1px solid rgba(199,242,78,.22);
  padding:5px 14px;border-radius:999px;margin-bottom:16px;font-weight:700;
}
.section-title{font-size:clamp(24px,3vw,32px);color:var(--text)}
.section-sub{color:var(--text-dim);margin-top:14px;font-size:16px;max-width:64ch}
.divider{height:1px;background:linear-gradient(90deg,transparent,var(--line) 20%,var(--line) 80%,transparent);border:0;margin:0}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1040;
  background:rgba(10,19,16,.72);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(9,17,14,.96);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px rgba(0,0,0,.4);
}
.header-inner{display:flex;align-items:center;gap:28px;min-height:74px}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;flex-shrink:0}
.brand:hover{text-decoration:none}
.brand-mark{
  width:40px;height:40px;border-radius:12px;flex-shrink:0;
  background:linear-gradient(140deg,var(--brand) 0%,#8FD62F 100%);
  display:grid;place-items:center;color:#0A1310;font-size:17px;font-weight:800;
  box-shadow:0 8px 20px rgba(199,242,78,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-main{font-size:18px;font-weight:800;color:var(--text);letter-spacing:.02em}
.brand-sub{font-size:12px;color:var(--text-dim);letter-spacing:.06em}
.main-nav{display:flex;align-items:center;gap:6px;margin-left:auto}
.nav-link{
  position:relative;display:inline-block;padding:10px 14px;border-radius:var(--r-btn);
  color:var(--text-dim);font-size:15px;font-weight:600;text-decoration:none;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(199,242,78,.07);text-decoration:none}
.nav-link.active{color:var(--brand)}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--brand);border-radius:2px;
}
.nav-cta{
  margin-left:12px;display:inline-flex;align-items:center;gap:8px;
  background:var(--brand);color:#0A1310;font-weight:800;font-size:15px;
  padding:11px 20px;border-radius:var(--r-btn);text-decoration:none;
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
  box-shadow:0 10px 24px rgba(199,242,78,.18);
}
.nav-cta:hover{background:var(--brand-hi);color:#0A1310;transform:translateY(-2px);text-decoration:none;box-shadow:0 14px 30px rgba(199,242,78,.28)}
.nav-toggle{
  display:none;margin-left:auto;width:44px;height:44px;border-radius:12px;
  background:var(--panel);border:1px solid var(--line);color:var(--text);
  cursor:pointer;font-size:17px;
}
.nav-toggle:hover{border-color:rgba(199,242,78,.45)}

/* ---------- buttons ---------- */
.btn-y9{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 28px;border-radius:var(--r-btn);font-weight:800;font-size:16px;
  border:1px solid transparent;cursor:pointer;text-decoration:none;
  transition:all .22s ease;
}
.btn-y9-primary{background:var(--brand);color:#0A1310;box-shadow:0 12px 26px rgba(199,242,78,.2)}
.btn-y9-primary:hover{background:var(--brand-hi);color:#0A1310;transform:translateY(-2px);text-decoration:none;box-shadow:0 18px 34px rgba(199,242,78,.3)}
.btn-y9-ghost{background:transparent;color:var(--brand);border-color:rgba(199,242,78,.55)}
.btn-y9-ghost:hover{background:rgba(199,242,78,.1);color:var(--brand-hi);text-decoration:none}
.btn-y9-dark{background:var(--panel);color:var(--text);border-color:var(--line)}
.btn-y9-dark:hover{background:var(--panel-2);color:var(--text);border-color:rgba(199,242,78,.35);text-decoration:none}
.btn-y9-sm{padding:10px 20px;font-size:14.5px}

/* ---------- badges ---------- */
.badge-soft{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:700;padding:4px 12px;border-radius:999px;
  background:rgba(199,242,78,.1);color:var(--brand);border:1px solid rgba(199,242,78,.25);
}
.badge-warm{background:rgba(255,122,47,.12);color:#FFA76E;border-color:rgba(255,122,47,.3)}
.badge-dim{background:rgba(157,180,172,.1);color:var(--text-dim);border-color:rgba(157,180,172,.24)}

/* ---------- hero ---------- */
.hero{position:relative;padding:76px 0 84px;overflow:hidden}
.hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(115deg,rgba(10,19,16,.94) 0%,rgba(12,24,19,.86) 45%,rgba(12,24,19,.66) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  z-index:-2;
}
.hero::after{
  content:"";position:absolute;top:-140px;right:-120px;width:520px;height:520px;border-radius:50%;
  background:radial-gradient(circle,rgba(199,242,78,.16) 0%,rgba(199,242,78,0) 68%);
  z-index:-1;pointer-events:none;
}
.hero-grid{display:grid;grid-template-columns:1.08fr .92fr;gap:56px;align-items:center}
.hero h1{
  font-size:clamp(30px,4.2vw,52px);line-height:1.28;color:var(--text);
  margin:18px 0 0;
}
.hero h1 .hl{color:var(--brand)}
.hero-sub{margin-top:16px;font-size:17px;color:var(--text-dim);max-width:56ch;line-height:1.85}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:30px}
.hero-stats{display:flex;flex-wrap:wrap;gap:36px;margin-top:38px;padding-top:26px;border-top:1px solid var(--line)}
.hero-stat b{display:block;font-size:26px;color:var(--brand);letter-spacing:.02em}
.hero-stat span{font-size:13.5px;color:var(--text-dim)}
.hero-visual{position:relative;border-radius:var(--r-hero);overflow:hidden;box-shadow:var(--shadow),var(--ring);border:1px solid var(--line)}
.hero-visual img{width:100%;aspect-ratio:16/11;object-fit:cover}
.hero-visual figcaption{
  position:absolute;left:16px;bottom:16px;right:16px;
  background:rgba(10,19,16,.82);border:1px solid var(--line);border-radius:12px;
  padding:12px 16px;font-size:13.5px;color:var(--text-dim);
}
.hero-visual figcaption strong{color:var(--brand)}

/* ---------- flow steps ---------- */
.flow{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.flow-step{
  position:relative;background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-card);padding:28px 24px;box-shadow:var(--ring);
  transition:transform .22s ease,border-color .22s ease;
}
.flow-step:hover{transform:translateY(-3px);border-color:rgba(199,242,78,.35)}
.flow-num{
  width:38px;height:38px;border-radius:50%;display:grid;place-items:center;
  background:rgba(199,242,78,.12);color:var(--brand);font-weight:800;font-size:16px;
  border:1px solid rgba(199,242,78,.3);margin-bottom:16px;
}
.flow-step h3{font-size:18px;color:var(--text);margin-bottom:10px}
.flow-step p{font-size:14.5px;color:var(--text-dim);line-height:1.8;margin:0}

/* ---------- rewards ---------- */
.reward-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.reward-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:26px;box-shadow:var(--ring);display:flex;flex-direction:column;gap:12px;
  transition:transform .22s ease,border-color .22s ease;
}
.reward-card:hover{transform:translateY(-3px);border-color:rgba(199,242,78,.35)}
.reward-card--wide{grid-column:span 3;position:relative;overflow:hidden}
.reward-card--narrow{grid-column:span 1;justify-content:space-between}
.reward-card--wide::after{
  content:"";position:absolute;right:-60px;top:-60px;width:200px;height:200px;border-radius:50%;
  background:radial-gradient(circle,rgba(255,122,47,.18) 0%,rgba(255,122,47,0) 70%);
}
.reward-icon{
  width:44px;height:44px;border-radius:12px;display:grid;place-items:center;
  background:rgba(199,242,78,.1);color:var(--brand);font-size:18px;border:1px solid rgba(199,242,78,.22);
}
.reward-card h3{font-size:19px;color:var(--text)}
.reward-card p{font-size:14.5px;color:var(--text-dim);line-height:1.85;margin:0}
.reward-corner{
  position:absolute;top:18px;right:18px;font-size:12.5px;font-weight:800;
  color:#0A1310;background:var(--brand);border-radius:999px;padding:4px 12px;
}
.tag-warm{color:#FFA76E;border:1px solid rgba(255,122,47,.35);background:rgba(255,122,47,.1);border-radius:999px;padding:3px 12px;font-size:12.5px;font-weight:700;align-self:flex-start}

/* ---------- task & progress ---------- */
.task-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:28px;align-items:start}
.panel-box{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  padding:28px;box-shadow:var(--ring);
}
.panel-box h3{font-size:19px;margin-bottom:18px}
.task-item{
  display:flex;align-items:flex-start;gap:12px;padding:14px 0;border-bottom:1px dashed rgba(31,58,50,.9);
}
.task-item:last-child{border-bottom:0;padding-bottom:0}
.task-check{
  width:22px;height:22px;border-radius:7px;flex-shrink:0;margin-top:3px;
  border:1px solid var(--line);display:grid;place-items:center;font-size:11px;color:transparent;
  background:rgba(19,37,31,.9);
}
.task-item.done .task-check{background:var(--brand);border-color:var(--brand);color:#0A1310}
.task-text strong{display:block;font-size:15.5px;color:var(--text);font-weight:700}
.task-text span{font-size:13.5px;color:var(--text-dim)}
.task-item.done .task-text strong{color:var(--text-dim);text-decoration:line-through}
.progress-panel{display:flex;flex-direction:column;gap:20px}
.progress-top{display:flex;align-items:baseline;justify-content:space-between;gap:12px}
.progress-top b{font-size:40px;color:var(--brand);line-height:1}
.progress-top span{font-size:13.5px;color:var(--text-dim)}
.progress-track{
  height:14px;border-radius:999px;background:#0C1815;border:1px solid var(--line);overflow:hidden;
}
.progress-fill{
  height:100%;width:68%;border-radius:999px;
  background:linear-gradient(90deg,#9FDB2E,var(--brand));
  transition:width 1s ease;
}
.progress-note{
  font-size:14px;color:var(--text-dim);background:rgba(199,242,78,.06);
  border-left:3px solid var(--brand);border-radius:0 10px 10px 0;padding:12px 16px;
}

/* ---------- posts ---------- */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:32px}
.chip{
  font-size:13.5px;font-weight:600;padding:7px 16px;border-radius:999px;
  background:var(--panel);border:1px solid var(--line);color:var(--text-dim);cursor:pointer;
  transition:all .2s ease;
}
.chip:hover{color:var(--text);border-color:rgba(199,242,78,.3)}
.chip.is-active{background:rgba(199,242,78,.14);color:var(--brand);border-color:rgba(199,242,78,.4)}
.post-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.post-card{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;display:flex;flex-direction:column;box-shadow:var(--ring);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.post-card:hover{transform:translateY(-3px);border-color:rgba(199,242,78,.3);box-shadow:0 22px 44px rgba(0,0,0,.5)}
.post-thumb{display:block;overflow:hidden}
.post-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover}
.post-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-cat{align-self:flex-start;font-size:12.5px;font-weight:700;color:var(--brand);background:rgba(199,242,78,.1);border:1px solid rgba(199,242,78,.22);border-radius:999px;padding:3px 12px}
.post-title{font-size:17px;line-height:1.6}
.post-title a{color:var(--text);text-decoration:none;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-title a:hover{color:var(--brand)}
.post-excerpt{
  font-size:14px;color:var(--text-dim);line-height:1.8;margin:0;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  margin-top:auto;padding-top:14px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:12px;font-size:13px;color:var(--text-dim);
}
.post-meta a{font-weight:700}
.empty-state{
  border:1px dashed var(--line);border-radius:var(--r-card);padding:56px 24px;text-align:center;
  background:rgba(19,37,31,.5);
}
.empty-state i{font-size:30px;color:var(--brand);margin-bottom:14px;display:block}
.empty-state p{color:var(--text-dim);margin-bottom:20px}

/* ---------- trust ---------- */
.trust-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.trust-card{background:rgba(19,37,31,.6);border:1px solid var(--line);border-radius:var(--r-card);padding:26px 22px}
.trust-card i{color:var(--brand);font-size:20px;margin-bottom:14px;display:block}
.trust-card h3{font-size:17px;margin-bottom:10px}
.trust-card p{font-size:14px;color:var(--text-dim);line-height:1.8;margin:0}

/* ---------- faq ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;margin:0 auto}
.faq-item{background:var(--panel);border:1px solid var(--line);border-radius:var(--r-card);overflow:hidden}
.faq-q{
  width:100%;display:flex;align-items:center;gap:16px;text-align:left;
  background:transparent;border:0;padding:20px 24px;cursor:pointer;color:var(--text);
  font-size:17.5px;font-weight:700;line-height:1.7;
}
.faq-q:hover{color:var(--brand-hi)}
.faq-q .faq-idx{color:var(--brand);font-weight:800;flex-shrink:0;font-size:15px}
.faq-q .faq-arrow{margin-left:auto;color:var(--text-dim);transition:transform .28s ease;flex-shrink:0;font-size:14px}
.faq-item.open .faq-arrow{transform:rotate(180deg);color:var(--brand)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
.faq-a-inner{
  background:var(--paper);color:var(--paper-ink);padding:20px 24px 24px 64px;
  font-size:15.5px;line-height:1.9;
}
.faq-a-inner p{margin:0}

/* ---------- cta ---------- */
.cta-band{
  background:linear-gradient(120deg,#13251F 0%,#0E1B16 100%);
  border:1px solid var(--line);border-radius:var(--r-hero);padding:48px;
  box-shadow:var(--shadow),var(--ring);
}
.cta-inner{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.cta-inner h2{font-size:clamp(24px,2.6vw,30px);color:var(--text)}
.cta-inner p{color:var(--text-dim);margin-top:14px;font-size:15.5px}
.entry-form{display:grid;grid-template-columns:1fr 1fr;gap:16px}
.field{display:flex;flex-direction:column;gap:8px}
.field label{font-size:13.5px;color:var(--text-dim);font-weight:600}
.field input,.field select{
  width:100%;padding:13px 16px;border-radius:var(--r-btn);
  background:#0F1E19;border:1px solid var(--line);color:var(--text);font-size:15px;
  transition:border-color .2s ease,background .2s ease;
}
.field input::placeholder{color:#6E857D}
.field input:focus,.field select:focus{outline:none;border-color:var(--brand);background:#12241D}
.field input:focus-visible,.field select:focus-visible{outline:2px solid var(--brand);outline-offset:2px}
.entry-form .full{grid-column:1 / -1}
.entry-form button{grid-column:1 / -1;width:100%}
.form-hint{font-size:13px;color:var(--text-dim);grid-column:1 / -1;margin:0}

/* ---------- footer ---------- */
.site-footer{
  margin-top:40px;background:#08110E;border-top:1px solid var(--line);
  padding:64px 0 26px;font-size:14px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-brand .brand-main{font-size:17px}
.footer-brand .brand-sub{font-size:11.5px}
.footer-about{color:var(--text-dim);line-height:1.85;font-size:14px;max-width:36ch}
.footer-col h4{font-size:15px;color:var(--text);margin-bottom:16px;font-weight:800}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{color:var(--text-dim);text-decoration:none;font-size:14px}
.footer-col a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px}
.footer-contact li{color:var(--text-dim);display:flex;gap:10px;align-items:flex-start;line-height:1.7}
.footer-contact i{color:var(--brand);margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;color:#7C918A;font-size:13px;
}
.footer-bottom a{color:#7C918A}
.footer-bottom a:hover{color:var(--brand)}

/* ---------- responsive ---------- */
@media (max-width:1199.98px){
  .post-grid{grid-template-columns:repeat(2,1fr)}
  .trust-grid{grid-template-columns:repeat(2,1fr)}
}
@media (max-width:991.98px){
  :root{--section:64px}
  .nav-toggle{display:grid;place-items:center}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:#0B1713;border-bottom:1px solid var(--line);
    padding:16px 24px 22px;margin:0;display:none;
    box-shadow:0 22px 40px rgba(0,0,0,.5);
  }
  .main-nav.open{display:flex}
  .nav-link{padding:13px 12px;font-size:15.5px}
  .nav-link.active::after{left:12px;right:auto;width:22px;bottom:6px}
  .nav-cta{margin:8px 0 0;justify-content:center}
  .hero{padding:52px 0 64px}
  .hero-grid{grid-template-columns:1fr;gap:38px}
  .hero-visual img{aspect-ratio:16/9}
  .flow{grid-template-columns:repeat(2,1fr)}
  .reward-grid{grid-template-columns:repeat(2,1fr)}
  .reward-card--wide,.reward-card--narrow{grid-column:span 1}
  .reward-card--wide{grid-column:span 2}
  .task-grid{grid-template-columns:1fr}
  .cta-inner{grid-template-columns:1fr;gap:32px}
  .cta-band{padding:36px 28px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:575.98px){
  :root{--section:56px}
  .container{padding:0 18px}
  body{font-size:16px}
  .hero h1{font-size:28px}
  .hero-stats{gap:22px}
  .hero-stat b{font-size:22px}
  .flow{grid-template-columns:1fr}
  .reward-grid{grid-template-columns:1fr}
  .reward-card--wide{grid-column:span 1}
  .post-grid{grid-template-columns:1fr}
  .trust-grid{grid-template-columns:1fr}
  .entry-form{grid-template-columns:1fr}
  .faq-q{font-size:16px;padding:18px}
  .faq-a-inner{padding:18px 20px 22px 20px}
  .cta-band{padding:28px 20px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .btn-y9{width:100%}
  .hero-actions{flex-direction:column}
  .nav-toggle{width:42px;height:42px}
}

/* roulang page: article */
:root{
  --bg-1:#0A1310;
  --bg-2:#122019;
  --panel:#13251F;
  --panel-2:#16302A;
  --line:#1F3A32;
  --accent:#C7F24E;
  --accent-hi:#D8FF6A;
  --warn:#FF7A2F;
  --violet:#7A5CFF;
  --paper:#F7F4EC;
  --paper-line:#DCD6C6;
  --ink:#23282A;
  --ink-soft:#4C5654;
  --text:#EAF6F1;
  --muted:#9DB4AC;
  --paper-accent:#1F7A54;
  --radius-card:14px;
  --radius-hero:22px;
  --radius-btn:10px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --shadow-soft:0 10px 26px rgba(0,0,0,.32);
  --gap-block:88px;
  --font-cn:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Hiragino Sans GB",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background:linear-gradient(135deg,var(--bg-1) 0%,var(--bg-2) 100%);
  background-attachment:fixed;
  letter-spacing:.01em;
}
img{max-width:100%;display:block;border:0}
a{color:var(--accent);text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease}
a:hover{color:var(--accent-hi);text-decoration:underline;text-underline-offset:3px}
button{font-family:inherit}
h1,h2,h3,h4,h5{font-weight:800;letter-spacing:.01em;margin:0;color:var(--text);line-height:1.35}
p{margin:.5em 0 1.1em}
ul,ol{margin:0 0 1.1em;padding-left:1.25em}
:focus-visible{outline:2px solid var(--accent);outline-offset:3px;border-radius:6px}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(10,19,16,.86);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(10px);
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(8,15,13,.97);
  border-bottom-color:var(--line);
  box-shadow:0 12px 28px rgba(0,0,0,.45);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:76px}
.brand{display:flex;align-items:center;gap:12px;color:var(--text);text-decoration:none}
.brand:hover{color:var(--text);text-decoration:none}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(140deg,var(--accent),#8FCB1F);
  color:#0C1A14;font-weight:800;font-size:16px;letter-spacing:.02em;
  box-shadow:0 8px 20px rgba(199,242,78,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2}
.brand-main{font-size:17px;font-weight:800}
.brand-sub{font-size:12px;color:var(--muted);letter-spacing:.14em}
.main-nav{display:flex;align-items:center;gap:6px}
.nav-link{
  position:relative;padding:10px 14px;border-radius:10px;
  font-size:15px;color:var(--muted);text-decoration:none;
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(199,242,78,.07);text-decoration:none}
.nav-link.active{color:var(--accent);font-weight:700}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--accent);border-radius:2px;
}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;margin-left:10px;
  padding:11px 20px;border-radius:var(--radius-btn);
  background:var(--accent);color:#0C1A14;font-weight:700;font-size:15px;
  box-shadow:0 10px 24px rgba(199,242,78,.22);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{background:var(--accent-hi);color:#0C1A14;transform:translateY(-2px);text-decoration:none;box-shadow:0 14px 28px rgba(199,242,78,.3)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  background:var(--panel);border:1px solid var(--line);color:var(--text);font-size:18px;
}

/* ---------- article hero ---------- */
.article-hero{
  position:relative;
  padding:52px 0 44px;
  background-image:
    radial-gradient(600px 300px at 88% 8%,rgba(199,242,78,.10),transparent 62%),
    linear-gradient(135deg,rgba(10,19,16,.92),rgba(18,32,25,.82)),
    url("/assets/images/backpic/back-1.png");
  background-size:auto,auto,cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.hero-inner{max-width:860px}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--muted);margin-bottom:18px}
.crumb a{color:var(--muted)}
.crumb a:hover{color:var(--accent)}
.crumb .sep{color:#3E5B52}
.crumb .current{color:var(--accent)}
.badge-chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:999px;font-size:13px;
  background:rgba(199,242,78,.12);border:1px solid rgba(199,242,78,.32);color:var(--accent);
  margin-bottom:18px;
}
.article-hero h1{
  font-size:clamp(26px,3.6vw,44px);
  line-height:1.32;
  letter-spacing:.01em;
}
.hero-sub{font-size:16.5px;color:var(--muted);margin:16px 0 0;max-width:720px}
.hero-meta{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  margin-top:24px;font-size:13.5px;color:var(--muted);
}
.hero-meta span{display:inline-flex;align-items:center;gap:8px}
.hero-meta i{color:var(--accent)}
.cover-frame{
  margin-top:34px;border-radius:var(--radius-hero);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
  aspect-ratio:16/8;background:var(--panel);
}
.cover-frame img{width:100%;height:100%;object-fit:cover}

/* ---------- article body ---------- */
.article-main{padding:64px 0 80px}
.article-wrap{max-width:820px;margin:0 auto}
.paper-card{
  background:var(--paper);color:var(--ink);
  border-radius:var(--radius-card);
  padding:48px 52px;
  box-shadow:var(--shadow);
  border:1px solid rgba(199,242,78,.12);
}
.article-body{font-size:17px;line-height:1.9;color:var(--ink)}
.article-body > *:first-child{margin-top:0}
.article-body h2{
  position:relative;font-size:24px;color:#16201D;
  margin:44px 0 16px;padding-left:18px;
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.22em;width:4px;height:1.05em;
  background:var(--paper-accent);border-radius:3px;
}
.article-body h3{font-size:19px;color:#2F5F4C;margin:30px 0 12px;font-weight:700}
.article-body h4{font-size:17px;color:#3A4643;margin:24px 0 10px}
.article-body p{margin:0 0 1.1em}
.article-body a{color:#136B4B;text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{color:#0C4F36}
.article-body ul,.article-body ol{padding-left:1.3em;margin:0 0 1.2em}
.article-body li{margin-bottom:.6em}
.article-body blockquote{
  margin:24px 0;padding:16px 20px;
  border-left:4px solid var(--paper-accent);
  background:#EFEBDE;border-radius:0 10px 10px 0;
  color:#3B4340;
}
.article-body img{border-radius:10px;margin:20px 0 8px;box-shadow:0 10px 24px rgba(35,40,42,.14)}
.article-body figure{margin:24px 0}
.article-body figcaption{font-size:13px;color:#6B7570;text-align:center;line-height:1.6}
.article-body table{width:100%;border-collapse:collapse;margin:22px 0;font-size:15px}
.article-body th,.article-body td{border:1px solid var(--paper-line);padding:10px 12px;text-align:left}
.article-body th{background:#EDE8DA;font-weight:700}
.article-body code{background:#E9E4D6;padding:2px 6px;border-radius:6px;font-size:14.5px}
.article-body hr{border:0;border-top:1px solid var(--paper-line);margin:34px 0}
.empty-state{text-align:center;padding:22px 6px}
.empty-state i{font-size:40px;color:var(--paper-accent);margin-bottom:14px;display:block}
.empty-state h2{font-size:22px;color:#16201D;margin-bottom:10px;padding:0}
.empty-state p{color:var(--ink-soft);margin-bottom:22px}
.btn-paper{
  display:inline-flex;align-items:center;gap:8px;
  padding:12px 24px;border-radius:var(--radius-btn);
  background:var(--paper-accent);color:#F7F4EC;font-weight:700;font-size:15px;
  transition:background .2s ease,transform .2s ease;
}
.btn-paper:hover{background:#17603F;color:#F7F4EC;text-decoration:none;transform:translateY(-2px)}

.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:26px}
.tag-row .tag-label{font-size:13.5px;color:var(--muted)}
.tag{
  display:inline-flex;align-items:center;padding:6px 13px;border-radius:999px;
  font-size:13px;color:var(--muted);background:var(--panel);border:1px solid var(--line);
  transition:color .2s ease,border-color .2s ease;
}
.tag:hover{color:var(--accent);border-color:rgba(199,242,78,.42);text-decoration:none}

/* ---------- pager ---------- */
.pager-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;margin-top:44px}
.pager-card{
  display:block;padding:24px;border-radius:var(--radius-card);
  background:var(--panel);border:1px solid var(--line);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.pager-card:hover{transform:translateY(-3px);border-color:rgba(199,242,78,.3);box-shadow:var(--shadow-soft);text-decoration:none}
.pager-card .dir{font-size:12.5px;color:var(--accent);letter-spacing:.16em}
.pager-card h4{margin:10px 0 8px;font-size:17px;color:var(--text)}
.pager-card p{margin:0;font-size:14px;color:var(--muted);line-height:1.7}
.pager-card.text-end{text-align:right}

/* ---------- related ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:20px;margin-bottom:28px}
.section-head h2{font-size:26px}
.section-head p{margin:8px 0 0;color:var(--muted);font-size:15px}
.rel-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.rel-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius-card);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.rel-card:hover{transform:translateY(-3px);border-color:rgba(199,242,78,.3);box-shadow:var(--shadow-soft);text-decoration:none}
.rel-thumb{aspect-ratio:16/10;overflow:hidden;background:var(--panel-2)}
.rel-thumb img{width:100%;height:100%;object-fit:cover}
.rel-body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1}
.rel-body .badge-chip{margin:0;font-size:12px;padding:4px 11px}
.rel-body h3{font-size:17px;line-height:1.55;color:var(--text)}
.rel-body p{margin:0;font-size:14px;color:var(--muted);line-height:1.7}
.rel-body .rel-time{font-size:13px;color:#7E968E;margin-top:auto}

.return-bar{display:flex;justify-content:center;margin-top:44px}
.btn-ghost{
  display:inline-flex;align-items:center;gap:9px;
  padding:12px 26px;border-radius:var(--radius-btn);
  border:1px solid var(--accent);color:var(--accent);font-weight:700;font-size:15px;
  transition:background .2s ease,transform .2s ease,color .2s ease;
}
.btn-ghost:hover{background:rgba(199,242,78,.1);color:var(--accent-hi);transform:translateY(-2px);text-decoration:none}

/* ---------- cta ---------- */
.cta-strip{
  margin-top:var(--gap-block);
  display:flex;align-items:center;justify-content:space-between;gap:28px;flex-wrap:wrap;
  padding:36px 38px;border-radius:var(--radius-hero);
  background:linear-gradient(120deg,rgba(19,37,31,.96),rgba(22,48,42,.9));
  border:1px solid var(--line);box-shadow:var(--shadow);
}
.cta-strip h2{font-size:24px}
.cta-strip p{margin:10px 0 0;color:var(--muted);font-size:15px;max-width:640px}
.btn-primary-solid{
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 30px;border-radius:var(--radius-btn);
  background:var(--accent);color:#0C1A14;font-weight:800;font-size:16px;
  box-shadow:0 12px 26px rgba(199,242,78,.22);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary-solid:hover{background:var(--accent-hi);color:#0C1A14;transform:translateY(-2px);text-decoration:none;box-shadow:0 16px 30px rgba(199,242,78,.3)}

/* ---------- footer ---------- */
.site-footer{
  margin-top:var(--gap-block);
  background:#08110E;
  border-top:1px solid var(--line);
  padding:62px 0 26px;
  font-size:14px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px}
.footer-about{color:var(--muted);line-height:1.85;margin:0;max-width:360px}
.footer-col h4{font-size:15px;font-weight:800;margin-bottom:16px;color:var(--text)}
.footer-col ul{list-style:none;padding:0;margin:0}
.footer-col li{margin-bottom:10px}
.footer-col a{color:var(--muted);text-decoration:none}
.footer-col a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;color:var(--muted)}
.footer-contact i{color:var(--accent);margin-top:4px}
.footer-bottom{
  margin-top:42px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  color:#7E968E;font-size:13.5px;
}

/* ---------- responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 22px}
}
@media (max-width:991px){
  :root{--gap-block:64px}
  .nav-toggle{display:flex;align-items:center;justify-content:center}
  .main-nav{
    position:absolute;left:18px;right:18px;top:calc(100% + 10px);
    flex-direction:column;align-items:stretch;gap:4px;
    padding:14px;border-radius:var(--radius-card);
    background:#0D1A16;border:1px solid var(--line);box-shadow:var(--shadow);
    display:none;
  }
  .main-nav.is-open{display:flex}
  .nav-link{padding:12px 14px;font-size:15.5px}
  .nav-link.active::after{left:14px;right:auto;width:26px;bottom:6px}
  .nav-cta{margin:8px 0 0;justify-content:center}
  .article-hero{padding:40px 0 34px}
  .paper-card{padding:36px 30px}
  .pager-grid{grid-template-columns:1fr;gap:16px}
  .rel-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr);gap:30px}
}
@media (max-width:767px){
  body{font-size:16px}
  .article-main{padding:44px 0 60px}
  .paper-card{padding:26px 20px}
  .article-body{font-size:16.5px;line-height:1.85}
  .article-body h2{font-size:21px;margin-top:34px}
  .article-body h3{font-size:18px}
  .rel-grid{grid-template-columns:1fr}
  .cta-strip{padding:26px 22px}
  .cta-strip h2{font-size:20px}
  .cover-frame{aspect-ratio:16/10;border-radius:16px}
  .section-head{flex-direction:column;align-items:flex-start;gap:6px}
}
@media (max-width:575px){
  .container{padding:0 18px}
  .brand-sub{letter-spacing:.08em}
  .article-hero h1{font-size:26px}
  .hero-sub{font-size:15.5px}
  .hero-meta{gap:8px 16px;font-size:13px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
  .btn-primary-solid,.btn-ghost,.btn-paper{width:100%;justify-content:center}
  .tag{padding:5px 11px}
}

/* roulang page: category1 */
:root{
  --bg-deep:#0A1310;
  --bg-mid:#122019;
  --panel:#13251F;
  --panel-soft:#16291F;
  --line:#1F3A32;
  --accent:#C7F24E;
  --accent-hover:#D8FF6A;
  --warn:#FF7A2F;
  --violet:#7A5CFF;
  --paper:#F7F4EC;
  --ink:#23282A;
  --text:#EAF6F1;
  --muted:#9DB4AC;
  --r-card:14px;
  --r-hero:22px;
  --r-btn:10px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --container:1200px;
  --gap-block:88px;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans","思源黑体","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background:
    linear-gradient(135deg,var(--bg-deep) 0%,var(--bg-mid) 55%,#0E1B16 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-card);}
a{color:var(--text);text-decoration:none;transition:color .22s ease, text-decoration-color .22s ease;}
a:hover{color:var(--accent);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4{font-weight:700;letter-spacing:.01em;color:var(--text);margin:0;}
h2{font-size:clamp(24px,2.4vw,32px);line-height:1.45;}
h3{font-size:clamp(18px,1.6vw,22px);line-height:1.55;}
p{margin:0 0 1.1em;}
ul{list-style:none;margin:0;padding:0;}
button,input,select,textarea{font-family:inherit;font-size:1rem;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}

.container{max-width:var(--container);margin:0 auto;padding:0 24px;width:100%;}
.section{padding:var(--gap-block) 0;}
.section-tight{padding:56px 0;}
.section-head{max-width:760px;margin-bottom:40px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.08em;color:var(--accent);
  background:rgba(199,242,78,.08);
  border:1px solid rgba(199,242,78,.22);
  border-radius:999px;padding:5px 14px;margin-bottom:16px;
}
.section-head p{color:var(--muted);margin-top:14px;font-size:16px;}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(10,19,16,.72);
  backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.scrolled{
  background:rgba(10,19,16,.94);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px rgba(0,0,0,.35);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;min-height:76px;
}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:44px;height:44px;flex:0 0 44px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  background:linear-gradient(140deg,var(--accent) 0%,#8FD02C 100%);
  color:#0A1310;font-weight:800;font-size:17px;letter-spacing:.02em;
  box-shadow:inset 0 0 0 1px rgba(255,255,255,.25);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-main{font-size:18px;font-weight:800;color:var(--text);}
.brand-sub{font-size:12.5px;color:var(--muted);letter-spacing:.06em;}
.main-nav{display:flex;align-items:center;gap:6px;}
.nav-link{
  position:relative;
  padding:10px 14px;border-radius:10px;
  font-size:15.5px;color:var(--muted);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(199,242,78,.06);text-decoration:none;}
.nav-link.active{color:var(--accent);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--accent);border-radius:2px;
}
.nav-cta{
  margin-left:12px;
  display:inline-flex;align-items:center;gap:8px;
  padding:11px 20px;border-radius:var(--r-btn);
  background:var(--accent);color:#0A1310;font-weight:700;font-size:15px;
  box-shadow:0 10px 24px rgba(199,242,78,.18);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{background:var(--accent-hover);color:#0A1310;transform:translateY(-2px);box-shadow:0 14px 28px rgba(199,242,78,.28);text-decoration:none;}
.nav-toggle{
  display:none;background:transparent;border:1px solid var(--line);color:var(--text);
  width:44px;height:44px;border-radius:12px;cursor:pointer;font-size:18px;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}

/* ---------- Buttons ---------- */
.btn-accent,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:9px;
  padding:13px 26px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:700;cursor:pointer;border:1px solid transparent;
  transition:all .22s ease;
}
.btn-accent{background:var(--accent);color:#0A1310;box-shadow:0 12px 26px rgba(199,242,78,.18);}
.btn-accent:hover{background:var(--accent-hover);color:#0A1310;transform:translateY(-2px);box-shadow:0 18px 34px rgba(199,242,78,.3);text-decoration:none;}
.btn-ghost{background:transparent;border-color:var(--accent);color:var(--accent);}
.btn-ghost:hover{background:rgba(199,242,78,.1);color:var(--accent-hover);transform:translateY(-2px);text-decoration:none;}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
  background-image:
    linear-gradient(180deg,rgba(10,19,16,.88) 0%,rgba(10,19,16,.94) 60%,rgba(10,19,16,.99) 100%),
    url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(199,242,78,.045) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(199,242,78,.045) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
}
.cat-hero-inner{position:relative;padding:64px 0 72px;}
.breadcrumb-line{
  display:flex;align-items:center;gap:10px;flex-wrap:wrap;
  font-size:13.5px;color:var(--muted);margin-bottom:20px;
}
.breadcrumb-line a{color:var(--muted);}
.breadcrumb-line a:hover{color:var(--accent);}
.breadcrumb-line .sep{opacity:.5;}
.breadcrumb-line .current{color:var(--accent);}
.hero-layout{
  display:grid;grid-template-columns:minmax(0,1.55fr) minmax(0,1fr);
  gap:48px;align-items:start;
}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--warn);
  border:1px solid rgba(255,122,47,.35);
  background:rgba(255,122,47,.08);
  border-radius:999px;padding:5px 14px;margin-bottom:18px;
}
.cat-hero h1{
  font-size:clamp(30px,4vw,50px);
  line-height:1.22;letter-spacing:.01em;margin-bottom:16px;
}
.cat-hero h1 em{font-style:normal;color:var(--accent);}
.hero-lead{color:var(--muted);font-size:17px;max-width:600px;margin-bottom:26px;}
.hero-actions{display:flex;gap:12px;flex-wrap:wrap;margin-bottom:28px;}
.hero-badges{display:flex;gap:26px;flex-wrap:wrap;}
.hero-badges .hb{display:flex;flex-direction:column;gap:2px;}
.hero-badges .hb b{font-size:22px;color:var(--accent);font-weight:800;line-height:1.3;}
.hero-badges .hb span{font-size:13px;color:var(--muted);}

.anchor-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-hero);
  padding:26px 24px;
  box-shadow:var(--shadow);
  box-shadow:0 18px 40px rgba(0,0,0,.45), inset 0 0 0 1px rgba(199,242,78,.12);
}
.anchor-card h2{font-size:17px;margin-bottom:16px;}
.anchor-list{display:flex;flex-direction:column;gap:6px;}
.anchor-list a{
  display:flex;align-items:center;gap:12px;
  padding:11px 14px;border-radius:10px;
  border:1px solid transparent;
  font-size:15px;color:var(--muted);
  transition:all .2s ease;
}
.anchor-list a i{color:var(--accent);font-size:13px;width:16px;text-align:center;}
.anchor-list a:hover{
  color:var(--text);background:rgba(199,242,78,.06);
  border-color:rgba(199,242,78,.22);text-decoration:none;
  transform:translateX(3px);
}

/* ---------- Steps layout ---------- */
.guide-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 340px;
  gap:48px;align-items:start;
}
.step-block{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:30px 30px 26px;
  margin-bottom:24px;
  box-shadow:0 18px 40px rgba(0,0,0,.35), inset 0 0 0 1px rgba(199,242,78,.08);
  transition:border-color .25s ease,transform .25s ease;
}
.step-block:hover{border-color:rgba(199,242,78,.3);transform:translateY(-2px);}
.step-head{display:flex;align-items:center;gap:16px;margin-bottom:14px;}
.step-num{
  flex:0 0 44px;width:44px;height:44px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:rgba(199,242,78,.12);
  border:1px solid rgba(199,242,78,.4);
  color:var(--accent);font-weight:800;font-size:17px;
}
.step-block p{color:var(--muted);margin-bottom:14px;}
.tip-box{
  display:flex;gap:12px;
  background:rgba(255,122,47,.07);
  border-left:3px solid var(--warn);
  border-radius:0 10px 10px 0;
  padding:13px 16px;
  font-size:14.5px;color:#E7DCD2;line-height:1.75;
}
.tip-box i{color:var(--warn);margin-top:5px;}
.tip-box b{color:var(--warn);font-weight:700;}

.side-panel{position:sticky;top:100px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:24px;
  box-shadow:0 18px 40px rgba(0,0,0,.35), inset 0 0 0 1px rgba(199,242,78,.08);
}
.side-card h3{font-size:17px;margin-bottom:14px;}
.side-card p{font-size:14.5px;color:var(--muted);margin-bottom:16px;}
.check-list li{
  display:flex;gap:10px;align-items:flex-start;
  font-size:14.5px;color:var(--muted);
  padding:8px 0;border-bottom:1px dashed rgba(31,58,50,.9);
}
.check-list li:last-child{border-bottom:none;}
.check-list li i{color:var(--accent);margin-top:5px;font-size:12px;}
.side-card.accent-card{border-color:rgba(199,242,78,.4);background:linear-gradient(160deg,#16291F 0%,#13251F 100%);}
.side-card.accent-card .btn-accent{width:100%;}

/* ---------- Scene cards ---------- */
.scene-grid{
  display:grid;grid-template-columns:repeat(2,minmax(0,1fr));
  gap:24px;
}
.scene-card{
  display:grid;grid-template-columns:150px 1fr;gap:20px;align-items:center;
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-card);padding:20px;
  box-shadow:0 18px 40px rgba(0,0,0,.3), inset 0 0 0 1px rgba(199,242,78,.06);
  transition:border-color .25s ease,transform .25s ease;
}
.scene-card:hover{border-color:rgba(199,242,78,.3);transform:translateY(-3px);}
.scene-card img{aspect-ratio:16/10;object-fit:cover;width:100%;}
.scene-card h3{font-size:18px;margin-bottom:8px;}
.scene-card p{font-size:14.5px;color:var(--muted);margin:0;}
.tag{
  display:inline-block;font-size:13px;padding:3px 11px;border-radius:999px;
  background:rgba(199,242,78,.1);color:var(--accent);
  border:1px solid rgba(199,242,78,.24);
}
.tag.warn{background:rgba(255,122,47,.1);color:var(--warn);border-color:rgba(255,122,47,.28);}

/* ---------- Errors ---------- */
.error-grid{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:20px;
}
.error-item{
  background:var(--panel-soft);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  padding:22px;
  transition:border-color .25s ease;
}
.error-item:hover{border-color:rgba(199,242,78,.28);}
.error-item .err-top{display:flex;align-items:center;gap:10px;margin-bottom:10px;}
.error-item .err-top i{color:var(--warn);font-size:15px;}
.error-item h3{font-size:16.5px;}
.error-item p{font-size:14.5px;color:var(--muted);margin:0;}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;}
.accordion-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card) !important;
  margin-bottom:14px;overflow:hidden;
}
.accordion-button{
  background:transparent;color:var(--text);
  font-size:18px;font-weight:600;line-height:1.7;
  padding:20px 22px;box-shadow:none !important;
  border-radius:var(--r-card) !important;
}
.accordion-button::before{
  content:attr(data-index);
  color:var(--accent);font-weight:800;margin-right:14px;font-size:15px;
}
.accordion-button:not(.collapsed){color:var(--accent);background:rgba(199,242,78,.05);}
.accordion-button::after{
  background-image:none;
  content:"\f107";font-family:"Font Awesome 6 Free";font-weight:900;
  display:flex;align-items:center;justify-content:center;
  color:var(--accent);font-size:15px;
  transition:transform .3s ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);}
.accordion-body{
  background:var(--paper);color:var(--ink);
  font-size:16px;line-height:1.9;padding:22px 24px;
}
.accordion-body p:last-child{margin-bottom:0;}

/* ---------- CTA / Form ---------- */
.cta-panel{
  background:linear-gradient(120deg,#13251F 0%,#0F1E19 100%);
  border:1px solid rgba(199,242,78,.28);
  border-radius:var(--r-hero);
  padding:48px;
  box-shadow:0 18px 40px rgba(0,0,0,.45), inset 0 0 0 1px rgba(199,242,78,.12);
}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.15fr);gap:44px;align-items:center;}
.cta-panel h2{margin-bottom:14px;}
.cta-panel .cta-desc{color:var(--muted);font-size:16px;margin-bottom:0;}
.entry-form{display:grid;grid-template-columns:1.2fr 1fr auto;gap:14px;align-items:end;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:13.5px;color:var(--muted);}
.field input,.field select{
  width:100%;
  background:#0E1C17;
  border:1px solid var(--line);
  border-radius:var(--r-btn);
  color:var(--text);
  padding:13px 15px;
  transition:border-color .2s ease,background .2s ease;
}
.field input::placeholder{color:var(--muted);opacity:.75;}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--accent);background:#102020;
  box-shadow:0 0 0 3px rgba(199,242,78,.12);
}
.form-note{font-size:13px;color:var(--muted);margin-top:14px;}

/* ---------- Footer ---------- */
.site-footer{
  background:#08110E;
  border-top:1px solid var(--line);
  padding:64px 0 26px;
  font-size:14px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;padding-bottom:40px;
}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:16px;}
.footer-about{color:var(--muted);font-size:14px;line-height:1.85;max-width:330px;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul li a{color:var(--muted);font-size:14px;}
.footer-col ul li a:hover{color:var(--accent);text-decoration:none;}
.footer-contact li{display:flex;gap:10px;color:var(--muted);font-size:14px;line-height:1.75;margin-bottom:12px;}
.footer-contact li i{color:var(--accent);margin-top:5px;font-size:13px;}
.footer-bottom{
  border-top:1px solid var(--line);
  padding-top:22px;
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--muted);font-size:13.5px;
}

/* ---------- Back to top ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:1040;
  width:46px;height:46px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--accent);color:#0A1310;border:none;cursor:pointer;
  box-shadow:0 14px 28px rgba(0,0,0,.45);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:all .25s ease;
}
.to-top.show{opacity:1;visibility:visible;transform:translateY(0);}
.to-top:hover{background:var(--accent-hover);}

/* ---------- Responsive ---------- */
@media (max-width:1199.98px){
  .hero-layout{grid-template-columns:1fr;gap:36px;}
  .guide-layout{grid-template-columns:1fr;gap:32px;}
  .side-panel{position:static;}
  .error-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-grid{grid-template-columns:1fr;gap:30px;}
}
@media (max-width:991.98px){
  :root{--gap-block:64px;}
  .nav-toggle{display:flex;align-items:center;justify-content:center;}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    flex-direction:column;align-items:stretch;gap:4px;
    background:rgba(10,19,16,.98);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
    padding:16px 24px 22px;
    display:none;
  }
  .main-nav.open{display:flex;}
  .nav-link{padding:13px 12px;}
  .nav-link.active::after{left:12px;right:auto;width:38px;}
  .nav-cta{margin:12px 0 0;justify-content:center;}
  .scene-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767.98px){
  .entry-form{grid-template-columns:1fr;align-items:stretch;}
  .cta-panel{padding:32px 24px;}
  .step-block{padding:24px 20px;}
  .scene-card{grid-template-columns:1fr;gap:16px;}
  .error-grid{grid-template-columns:1fr;}
  .accordion-button{font-size:16.5px;padding:17px 18px;}
  .hero-badges{gap:18px;}
}
@media (max-width:575.98px){
  :root{--gap-block:56px;}
  .container{padding:0 18px;}
  .cat-hero h1{font-size:28px;}
  .cat-hero-inner{padding:44px 0 52px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;}
  .to-top{right:16px;bottom:18px;}
}

/* Bootstrap overrides */
.btn:focus,.btn:active{box-shadow:none !important;}
.accordion-button:focus{box-shadow:none;border-color:transparent;}
a{text-decoration-thickness:1px;}

/* roulang page: category2 */
:root{
  --bg-deep:#0A1310;
  --bg:#122019;
  --panel:#13251F;
  --panel-2:#162C25;
  --line:#1F3A32;
  --accent:#C7F24E;
  --accent-hi:#D8FF6A;
  --warm:#FF7A2F;
  --violet:#7A5CFF;
  --paper:#F7F4EC;
  --ink:#23282A;
  --text:#EAF6F1;
  --muted:#9DB4AC;
  --radius-sm:10px;
  --radius:14px;
  --radius-lg:22px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --shadow-soft:0 10px 24px rgba(0,0,0,.32);
  --section-space:88px;
  --container:1200px;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:88px;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16.5px;
  line-height:1.9;
  color:var(--text);
  background:linear-gradient(135deg,var(--bg-deep) 0%,var(--bg) 58%,#0E1B16 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;}
a{color:var(--accent);text-decoration:none;transition:color .22s ease,text-decoration-color .22s ease;}
a:hover{color:var(--accent-hi);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4{font-weight:700;letter-spacing:.01em;line-height:1.35;margin:0;}
p{margin:0 0 1.1em;max-width:40em;}
ul{margin:0;padding:0;list-style:none;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--accent);outline-offset:2px;border-radius:6px;}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 24px;}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(10,19,16,.84);
  border-bottom:1px solid transparent;
  backdrop-filter:blur(12px);
  transition:background .25s ease,border-color .25s ease;
}
.site-header.scrolled{background:rgba(7,14,12,.97);border-bottom-color:var(--line);}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;min-height:74px;}
.brand{display:flex;align-items:center;gap:12px;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:42px;height:42px;flex:0 0 42px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--accent),#9CD624);
  color:#0A1310;font-weight:800;font-size:15px;letter-spacing:.02em;
  border-radius:12px;
  box-shadow:0 6px 18px rgba(199,242,78,.22);
}
.brand-text{display:flex;flex-direction:column;line-height:1.25;}
.brand-main{font-size:17px;font-weight:800;color:var(--text);}
.brand-sub{font-size:12.5px;color:var(--muted);letter-spacing:.06em;}
.main-nav{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 13px;
  font-size:15px;
  color:var(--muted);
  border-radius:var(--radius-sm);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(199,242,78,.07);text-decoration:none;}
.nav-link.active{color:var(--accent);font-weight:600;}
.nav-link.active::after{
  content:"";position:absolute;left:50%;bottom:2px;transform:translateX(-50%);
  width:20px;height:2px;border-radius:2px;background:var(--accent);
}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;
  margin-left:10px;padding:10px 18px;
  background:var(--accent);color:#0A1310;
  font-size:15px;font-weight:700;
  border-radius:var(--radius-sm);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{background:var(--accent-hi);color:#0A1310;text-decoration:none;transform:translateY(-2px);box-shadow:0 12px 26px rgba(199,242,78,.24);}
.nav-cta:active{transform:translateY(0);}
.nav-toggle{
  display:none;align-items:center;justify-content:center;
  width:44px;height:44px;
  background:var(--panel);color:var(--text);
  border:1px solid var(--line);border-radius:var(--radius-sm);
  font-size:17px;cursor:pointer;
  transition:border-color .2s ease,color .2s ease;
}
.nav-toggle:hover{border-color:var(--accent);color:var(--accent);}

/* ============ 页头 ============ */
.page-hero{
  position:relative;
  padding:76px 0 64px;
  background-image:linear-gradient(120deg,rgba(10,19,16,.95) 0%,rgba(18,32,25,.84) 55%,rgba(10,19,16,.92) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background-image:linear-gradient(rgba(199,242,78,.05) 1px,transparent 1px),linear-gradient(90deg,rgba(199,242,78,.05) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;opacity:.6;
}
.page-hero .container{position:relative;z-index:2;}
.breadcrumb-line{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--muted);margin-bottom:20px;}
.breadcrumb-line a{color:var(--muted);}
.breadcrumb-line a:hover{color:var(--accent);text-decoration:none;}
.breadcrumb-line .sep{opacity:.5;}
.breadcrumb-line .current{color:var(--accent);}
.page-title{font-size:clamp(30px,4.2vw,46px);font-weight:800;margin-bottom:18px;max-width:22em;}
.page-lead{font-size:17px;color:var(--muted);max-width:44em;margin-bottom:26px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;gap:7px;
  padding:7px 14px;font-size:13px;color:var(--text);
  background:rgba(19,37,31,.9);
  border:1px solid var(--line);border-radius:999px;
}
.tag i{color:var(--accent);font-size:12px;}
.tag.warm{border-color:rgba(255,122,47,.42);color:#FFC79B;}
.tag.warm i{color:var(--warm);}

/* ============ 通用板块 ============ */
.section{padding:var(--section-space) 0;}
.section-head{max-width:44em;margin-bottom:44px;}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;color:var(--accent);letter-spacing:.08em;
  text-transform:uppercase;margin-bottom:14px;font-weight:600;
}
.section-title{font-size:clamp(24px,3vw,32px);margin-bottom:16px;}
.section-sub{color:var(--muted);font-size:16px;margin-bottom:0;}
.divider{height:1px;background:var(--line);border:0;margin:0;opacity:1;}

/* ============ 交错图文 ============ */
.feature-row{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:56px 0;
  border-top:1px solid var(--line);
}
.feature-row:first-of-type{border-top:0;padding-top:0;}
.feature-row:last-of-type{padding-bottom:0;}
.feature-row.reverse .feature-media{order:2;}
.feature-media{position:relative;}
.feature-media img{
  width:100%;aspect-ratio:16/10;object-fit:cover;
  border-radius:var(--radius);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.feature-media .media-badge{
  position:absolute;left:16px;top:16px;
  padding:6px 13px;font-size:12.5px;font-weight:600;
  background:rgba(10,19,16,.86);color:var(--accent);
  border:1px solid rgba(199,242,78,.35);border-radius:999px;
  backdrop-filter:blur(6px);
}
.feature-index{
  display:inline-grid;place-items:center;
  width:38px;height:38px;margin-bottom:16px;
  font-size:15px;font-weight:800;color:#0A1310;
  background:var(--accent);border-radius:11px;
}
.feature-body h3{font-size:21px;margin-bottom:14px;}
.feature-body p{color:var(--muted);font-size:16px;}
.point-list{margin:18px 0 22px;display:grid;gap:10px;}
.point-list li{position:relative;padding-left:24px;font-size:15.5px;color:var(--text);}
.point-list li::before{
  content:"";position:absolute;left:4px;top:.72em;
  width:8px;height:8px;border-radius:50%;
  background:var(--accent);box-shadow:0 0 0 4px rgba(199,242,78,.14);
}
.link-cta{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--accent);
  border-bottom:1px solid rgba(199,242,78,.4);
  padding-bottom:2px;
  transition:gap .2s ease,color .2s ease,border-color .2s ease;
}
.link-cta:hover{gap:12px;text-decoration:none;border-color:var(--accent-hi);}

/* ============ 数据条 ============ */
.stats-strip{
  margin-top:8px;
  display:grid;grid-template-columns:repeat(4,1fr);gap:1px;
  background:var(--line);
  border:1px solid var(--line);border-radius:var(--radius-lg);
  overflow:hidden;
  box-shadow:var(--shadow-soft);
}
.stat-item{background:var(--panel);padding:28px 22px;}
.stat-num{font-size:30px;font-weight:800;color:var(--accent);line-height:1.2;margin-bottom:6px;}
.stat-label{font-size:14px;color:var(--muted);}

/* ============ 适用场景 ============ */
.scene-grid{display:grid;grid-template-columns:1.35fr 1fr;gap:24px;align-items:stretch;}
.scene-card{
  background:var(--panel);
  border:1px solid var(--line);border-radius:var(--radius);
  padding:26px;
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.scene-card:hover{transform:translateY(-3px);border-color:rgba(199,242,78,.35);box-shadow:var(--shadow);}
.scene-card h3{font-size:18px;margin-bottom:12px;}
.scene-card p{color:var(--muted);font-size:15px;margin-bottom:0;}
.scene-card.wide{display:flex;flex-direction:column;gap:18px;}
.scene-card.wide img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:var(--radius-sm);}
.scene-stack{display:grid;gap:24px;}
.scene-icon{
  width:40px;height:40px;display:grid;place-items:center;
  border-radius:11px;background:rgba(199,242,78,.12);color:var(--accent);
  font-size:16px;margin-bottom:14px;
}

/* ============ FAQ ============ */
.faq .accordion-item{
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--radius);margin-bottom:14px;overflow:hidden;
}
.faq .accordion-button{
  background:transparent;color:var(--text);
  font-size:17.5px;font-weight:600;line-height:1.7;
  padding:20px 22px;box-shadow:none;
  display:flex;align-items:center;gap:14px;
}
.faq .accordion-button:not(.collapsed){color:var(--accent);background:rgba(199,242,78,.06);}
.faq .accordion-button:focus{box-shadow:none;outline:2px solid var(--accent);outline-offset:-2px;}
.faq .accordion-button::after{
  content:"+";background-image:none;
  width:26px;height:26px;flex:0 0 26px;
  display:grid;place-items:center;
  color:var(--accent);font-size:19px;font-weight:700;
  border:1px solid rgba(199,242,78,.4);border-radius:50%;
  transition:transform .25s ease;
}
.faq .accordion-button:not(.collapsed)::after{content:"−";transform:rotate(180deg);}
.faq .accordion-body{
  background:var(--paper);color:var(--ink);
  font-size:16px;line-height:1.9;padding:20px 22px 22px;
}
.faq .accordion-body p{margin-bottom:.8em;}
.faq .accordion-body p:last-child{margin-bottom:0;}
.faq-num{color:var(--accent);font-weight:800;font-size:14px;min-width:24px;}

/* ============ CTA 条 ============ */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:40px;
  background:linear-gradient(120deg,rgba(19,37,31,.96),rgba(22,44,37,.92)),url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;
  border:1px solid rgba(199,242,78,.22);
  border-radius:var(--radius-lg);
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(21px,2.4vw,27px);margin-bottom:10px;}
.cta-band p{color:var(--muted);font-size:15.5px;margin-bottom:0;max-width:38em;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}
.btn-primary-x{
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 26px;
  background:var(--accent);color:#0A1310;
  font-size:16px;font-weight:700;
  border:none;border-radius:var(--radius-sm);
  transition:background .2s ease,transform .2s ease,box-shadow .2s ease;
}
.btn-primary-x:hover{background:var(--accent-hi);color:#0A1310;text-decoration:none;transform:translateY(-2px);box-shadow:0 14px 30px rgba(199,242,78,.26);}
.btn-ghost-x{
  display:inline-flex;align-items:center;gap:9px;
  padding:14px 24px;
  background:transparent;color:var(--accent);
  font-size:16px;font-weight:600;
  border:1px solid var(--accent);border-radius:var(--radius-sm);
  transition:background .2s ease,color .2s ease,transform .2s ease;
}
.btn-ghost-x:hover{background:rgba(199,242,78,.1);color:var(--accent-hi);text-decoration:none;transform:translateY(-2px);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:40px;
  background:#08110E;
  border-top:1px solid var(--line);
  padding:64px 0 26px;
  font-size:14px;
}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1.3fr;gap:40px;}
.footer-brand{display:flex;align-items:center;gap:12px;margin-bottom:18px;}
.footer-about{color:var(--muted);font-size:14px;line-height:1.85;max-width:30em;margin-bottom:0;}
.footer-col h4{font-size:15px;font-weight:700;color:var(--text);margin-bottom:16px;}
.footer-col ul{display:grid;gap:10px;}
.footer-col a{color:var(--muted);font-size:14px;}
.footer-col a:hover{color:var(--accent);text-decoration:none;}
.footer-contact li{display:flex;gap:10px;color:var(--muted);align-items:flex-start;}
.footer-contact i{color:var(--accent);margin-top:5px;font-size:13px;}
.footer-bottom{
  margin-top:44px;padding-top:20px;
  border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--muted);font-size:13px;
}

/* ============ 响应式 ============ */
@media (max-width:1199.98px){
  .feature-row{gap:40px;}
  .cta-band{padding:34px;}
}
@media (max-width:991.98px){
  :root{--section-space:64px;}
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    display:none;flex-direction:column;align-items:stretch;gap:6px;
    padding:16px 24px 22px;
    background:rgba(9,17,14,.99);
    border-bottom:1px solid var(--line);
    box-shadow:var(--shadow);
  }
  .main-nav.open{display:flex;}
  .nav-link{padding:12px 14px;font-size:16px;}
  .nav-link.active::after{display:none;}
  .nav-cta{margin:8px 0 0;justify-content:center;}
  .feature-row{grid-template-columns:1fr;gap:28px;padding:40px 0;}
  .feature-row.reverse .feature-media{order:0;}
  .stats-strip{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:1fr;}
  .cta-band{flex-direction:column;align-items:flex-start;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:575.98px){
  :root{--section-space:56px;}
  body{font-size:16px;}
  .container{padding:0 18px;}
  .page-hero{padding:52px 0 46px;}
  .page-title{font-size:28px;}
  .stats-strip{grid-template-columns:1fr;}
  .stat-item{padding:22px 18px;}
  .scene-card{padding:20px;}
  .faq .accordion-button{font-size:16px;padding:16px 16px;gap:10px;}
  .faq .accordion-body{padding:16px;}
  .cta-band{padding:24px 20px;}
  .btn-primary-x,.btn-ghost-x{width:100%;justify-content:center;}
  .footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;gap:8px;}
}

/* roulang page: category3 */
:root{
  --bg-1:#0A1310;
  --bg-2:#122019;
  --panel:#13251F;
  --panel-2:#162B24;
  --line:#1F3A32;
  --line-soft:rgba(199,242,78,.12);
  --brand:#C7F24E;
  --brand-hover:#D8FF6A;
  --brand-soft:rgba(199,242,78,.08);
  --accent:#FF7A2F;
  --violet:#7A5CFF;
  --paper:#F7F4EC;
  --paper-text:#23282A;
  --text:#EAF6F1;
  --muted:#9DB4AC;
  --radius-card:14px;
  --radius-hero:22px;
  --radius-btn:10px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --space:88px;
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  background:linear-gradient(135deg,var(--bg-1) 0%,var(--bg-2) 100%);
  background-attachment:fixed;
  color:var(--text);
  font-size:16.5px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  letter-spacing:.01em;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;transition:color .2s ease,text-decoration-color .2s ease;}
a:hover{color:var(--brand);text-decoration:underline;text-underline-offset:3px;text-decoration-thickness:1px;}
button,input,select,textarea{font-family:inherit;font-size:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:.01em;line-height:1.35;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--brand);outline-offset:2px;}

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

/* ---------- 按钮 ---------- */
.btn-brand,
.btn-ghost{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  padding:13px 26px;
  border-radius:var(--radius-btn);
  font-weight:700;
  font-size:16px;
  line-height:1.2;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease,box-shadow .2s ease,background-color .2s ease,color .2s ease,border-color .2s ease;
}
.btn-brand{
  background:var(--brand);
  color:#0A1310;
  box-shadow:0 10px 26px rgba(199,242,78,.16);
}
.btn-brand:hover{
  background:var(--brand-hover);
  color:#0A1310;
  transform:translateY(-2px);
  box-shadow:0 14px 32px rgba(199,242,78,.26);
  text-decoration:none;
}
.btn-ghost{
  background:transparent;
  color:var(--brand);
  border-color:var(--brand);
}
.btn-ghost:hover{
  background:var(--brand-soft);
  color:var(--brand-hover);
  transform:translateY(-2px);
  text-decoration:none;
}
.btn-sm{padding:10px 18px;font-size:14.5px;}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(10,19,16,.72);
  backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background-color .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  background:rgba(8,16,13,.94);
  border-bottom-color:var(--line);
  box-shadow:0 12px 30px rgba(0,0,0,.4);
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  min-height:76px;
}
.brand{
  display:flex;
  align-items:center;
  gap:12px;
  flex:0 0 auto;
}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:42px;height:42px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:linear-gradient(140deg,var(--brand) 0%,#8FD22F 100%);
  color:#0A1310;
  font-weight:800;
  font-size:17px;
  letter-spacing:.02em;
  box-shadow:inset 0 0 0 1px rgba(10,19,16,.25);
}
.brand-text{display:flex;flex-direction:column;line-height:1.2;}
.brand-main{font-size:18px;font-weight:800;color:var(--text);}
.brand-sub{font-size:12.5px;color:var(--muted);letter-spacing:.06em;}

.main-nav{
  display:flex;
  align-items:center;
  gap:6px;
}
.nav-link{
  position:relative;
  padding:10px 14px;
  border-radius:8px;
  font-size:15.5px;
  color:var(--muted);
  white-space:nowrap;
  transition:color .2s ease,background-color .2s ease;
}
.nav-link:hover{
  color:var(--text);
  background:rgba(199,242,78,.06);
  text-decoration:none;
}
.nav-link.active{
  color:var(--brand);
  font-weight:700;
}
.nav-link.active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  border-radius:2px;
  background:var(--brand);
}
.nav-cta{
  display:inline-flex;
  align-items:center;
  gap:8px;
  margin-left:12px;
  padding:11px 20px;
  border-radius:var(--radius-btn);
  background:var(--brand);
  color:#0A1310;
  font-weight:700;
  font-size:15px;
  transition:background-color .2s ease,transform .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{
  background:var(--brand-hover);
  color:#0A1310;
  transform:translateY(-2px);
  text-decoration:none;
  box-shadow:0 12px 26px rgba(199,242,78,.22);
}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:10px;
  border:1px solid var(--line);
  background:var(--panel);
  color:var(--text);
  cursor:pointer;
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  overflow:hidden;
  padding:76px 0 68px;
  border-bottom:1px solid var(--line);
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:
    linear-gradient(135deg,rgba(10,19,16,.94) 0%,rgba(18,32,25,.86) 100%),
    url("/assets/images/backpic/back-2.png");
  background-size:cover;
  background-position:center;
  z-index:0;
}
.page-hero::after{
  content:"";
  position:absolute;
  top:-120px;right:-80px;
  width:420px;height:420px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(199,242,78,.14) 0%,rgba(199,242,78,0) 68%);
  z-index:1;
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{
  display:grid;
  grid-template-columns:1.15fr .85fr;
  gap:48px;
  align-items:center;
}
.hero-badges{
  display:flex;
  flex-wrap:wrap;
  gap:10px;
  margin-bottom:20px;
}
.chip{
  display:inline-flex;
  align-items:center;
  gap:7px;
  padding:6px 14px;
  border-radius:999px;
  font-size:13px;
  letter-spacing:.02em;
  background:var(--brand-soft);
  border:1px solid var(--line-soft);
  color:var(--brand);
}
.chip.is-live{background:rgba(199,242,78,.14);color:var(--brand);}
.chip.is-long{background:rgba(122,92,255,.14);border-color:rgba(122,92,255,.3);color:#C3B4FF;}
.page-hero h1{
  font-size:clamp(30px,4.2vw,50px);
  margin-bottom:16px;
}
.page-hero h1 .hl{color:var(--brand);}
.hero-sub{
  font-size:17px;
  color:var(--muted);
  max-width:34em;
  margin-bottom:26px;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:12px;
  margin-bottom:28px;
}
.hero-stats{
  display:flex;
  flex-wrap:wrap;
  gap:32px;
}
.stat-item .stat-num{
  display:block;
  font-size:26px;
  font-weight:800;
  color:var(--brand);
  line-height:1.3;
}
.stat-item .stat-label{
  font-size:13.5px;
  color:var(--muted);
}
.hero-panel{
  border-radius:var(--radius-hero);
  background:var(--panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow),inset 0 0 0 1px var(--line-soft);
  padding:26px;
}
.hero-panel h3{
  font-size:18px;
  margin-bottom:16px;
}
.hero-panel .panel-list li{
  display:flex;
  justify-content:space-between;
  gap:16px;
  padding:12px 0;
  border-bottom:1px dashed var(--line);
  font-size:15px;
}
.hero-panel .panel-list li:last-child{border-bottom:none;}
.hero-panel .panel-list .val{color:var(--brand);font-weight:700;}
.hero-panel .panel-list .muted{color:var(--muted);font-size:14px;}

/* ---------- 板块通用 ---------- */
.section{padding:var(--space) 0;}
.section-alt{background:rgba(19,37,31,.42);border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{
  max-width:760px;
  margin-bottom:44px;
}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.section-tag{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:13px;
  letter-spacing:.1em;
  color:var(--brand);
  text-transform:uppercase;
  margin-bottom:14px;
}
.section-head h2{
  font-size:clamp(24px,3vw,32px);
  margin-bottom:14px;
}
.section-head p{color:var(--muted);margin-bottom:0;}

/* ---------- 奖励卡栅格 ---------- */
.reward-grid{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
}
.reward-card{
  display:flex;
  flex-direction:column;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:24px 22px;
  box-shadow:var(--shadow);
  transition:transform .22s ease,border-color .22s ease,box-shadow .22s ease;
}
.reward-card:hover{
  transform:translateY(-4px);
  border-color:rgba(199,242,78,.3);
}
.reward-card.is-featured{
  border-color:var(--brand);
  background:linear-gradient(160deg,rgba(199,242,78,.08) 0%,rgba(19,37,31,1) 62%);
}
.reward-icon{
  width:46px;height:46px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  background:rgba(199,242,78,.12);
  color:var(--brand);
  font-size:19px;
  margin-bottom:16px;
}
.reward-card.is-featured .reward-icon{background:var(--brand);color:#0A1310;}
.reward-card h3{
  font-size:18.5px;
  margin-bottom:10px;
}
.reward-card p{
  font-size:15px;
  color:var(--muted);
  margin-bottom:18px;
}
.reward-meta{
  margin-top:auto;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:10px;
  padding-top:16px;
  border-top:1px dashed var(--line);
  font-size:13.5px;
  color:var(--muted);
}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 11px;
  border-radius:999px;
  font-size:13px;
  border:1px solid var(--line);
  background:rgba(255,122,47,.12);
  color:var(--accent);
}
.tag.is-green{background:var(--brand-soft);border-color:var(--line-soft);color:var(--brand);}
.tag.is-violet{background:rgba(122,92,255,.14);border-color:rgba(122,92,255,.28);color:#C3B4FF;}

/* ---------- 时间轴 ---------- */
.timeline{
  position:relative;
  max-width:820px;
  margin:0 auto;
  padding-left:0;
}
.timeline::before{
  content:"";
  position:absolute;
  left:96px;
  top:8px;
  bottom:8px;
  width:2px;
  background:linear-gradient(180deg,rgba(199,242,78,.5) 0%,rgba(199,242,78,.08) 100%);
}
.tl-item{
  position:relative;
  display:grid;
  grid-template-columns:96px 1fr;
  gap:36px;
  padding-bottom:32px;
}
.tl-item:last-child{padding-bottom:0;}
.tl-time{
  font-size:14px;
  color:var(--muted);
  text-align:right;
  padding-top:2px;
  font-variant-numeric:tabular-nums;
}
.tl-body{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px 22px;
  transition:border-color .22s ease,transform .22s ease;
}
.tl-body:hover{border-color:rgba(199,242,78,.3);transform:translateX(3px);}
.tl-body::before{
  content:"";
  position:absolute;
  left:-42px;
  top:24px;
  width:12px;height:12px;
  border-radius:50%;
  background:var(--brand);
  box-shadow:0 0 0 4px rgba(199,242,78,.14);
}
.tl-body h3{font-size:17.5px;margin-bottom:8px;}
.tl-body p{font-size:15px;color:var(--muted);margin-bottom:0;}

/* ---------- 流程步骤 ---------- */
.steps{
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
}
.step-card{
  position:relative;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:26px 24px 24px;
}
.step-num{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  width:38px;height:38px;
  border-radius:50%;
  background:var(--brand);
  color:#0A1310;
  font-weight:800;
  font-size:16px;
  margin-bottom:16px;
}
.step-card h3{font-size:18px;margin-bottom:10px;}
.step-card p{font-size:15px;color:var(--muted);margin-bottom:0;}

/* ---------- 图文说明 ---------- */
.split{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:48px;
  align-items:center;
}
.split-media{
  border-radius:var(--radius-hero);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.split-media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
}
.split-body h2{
  font-size:clamp(23px,2.7vw,30px);
  margin-bottom:16px;
}
.split-body p{color:var(--muted);}
.check-list li{
  position:relative;
  padding-left:28px;
  margin-bottom:12px;
  font-size:15.5px;
}
.check-list li::before{
  content:"\f00c";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  position:absolute;
  left:0;top:0;
  color:var(--brand);
  font-size:13px;
}

/* ---------- 数据条 ---------- */
.metrics{
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  margin-top:48px;
}
.metric{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:22px;
  text-align:center;
}
.metric .num{
  display:block;
  font-size:28px;
  font-weight:800;
  color:var(--brand);
  line-height:1.3;
}
.metric .label{font-size:14px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-accordion .accordion-item{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  margin-bottom:14px;
  overflow:hidden;
}
.faq-accordion .accordion-button{
  background:transparent;
  color:var(--text);
  font-size:18px;
  font-weight:700;
  line-height:1.7;
  padding:20px 22px;
  box-shadow:none;
  display:flex;
  align-items:center;
  gap:14px;
}
.faq-accordion .accordion-button:not(.collapsed){
  color:var(--brand);
  background:rgba(199,242,78,.05);
  box-shadow:none;
}
.faq-accordion .accordion-button::after{
  background-image:none;
  content:"\f078";
  font-family:"Font Awesome 6 Free";
  font-weight:900;
  font-size:13px;
  color:var(--muted);
  width:auto;height:auto;
  margin-left:auto;
  transition:transform .25s ease,color .25s ease;
}
.faq-accordion .accordion-button:not(.collapsed)::after{
  transform:rotate(180deg);
  color:var(--brand);
}
.faq-num{
  flex:0 0 auto;
  font-size:14px;
  font-weight:800;
  color:var(--brand);
  letter-spacing:.06em;
}
.faq-accordion .accordion-body{
  background:var(--paper);
  color:var(--paper-text);
  font-size:16px;
  line-height:1.9;
  padding:22px 24px 24px;
  border-top:1px solid rgba(35,40,42,.08);
}
.faq-accordion .accordion-body p{margin-bottom:.9em;}
.faq-accordion .accordion-body p:last-child{margin-bottom:0;}

/* ---------- CTA 条 ---------- */
.cta-band{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:32px;
  padding:36px 40px;
  border-radius:var(--radius-hero);
  background:linear-gradient(120deg,rgba(199,242,78,.14) 0%,rgba(19,37,31,.96) 58%);
  border:1px solid var(--line);
  box-shadow:var(--shadow),inset 0 0 0 1px var(--line-soft);
}
.cta-band h2{
  font-size:clamp(22px,2.5vw,28px);
  margin-bottom:10px;
}
.cta-band p{color:var(--muted);margin-bottom:0;max-width:44em;}
.cta-band .cta-actions{display:flex;gap:12px;flex-wrap:wrap;flex:0 0 auto;}

/* ---------- 表单 ---------- */
.form-panel{
  margin-top:44px;
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--radius-hero);
  padding:30px;
}
.form-grid{
  display:grid;
  grid-template-columns:1.1fr 1fr auto;
  gap:16px;
  align-items:end;
}
.field label{
  display:block;
  font-size:14px;
  color:var(--muted);
  margin-bottom:8px;
}
.field input,
.field select{
  width:100%;
  padding:13px 15px;
  border-radius:var(--radius-btn);
  background:var(--panel-2);
  border:1px solid var(--line);
  color:var(--text);
  transition:border-color .2s ease,background-color .2s ease;
}
.field input::placeholder{color:var(--muted);}
.field input:focus,
.field select:focus{
  outline:none;
  border-color:var(--brand);
  background:#0F1F19;
}
.form-hint{
  margin-top:14px;
  font-size:13.5px;
  color:var(--muted);
}

/* ---------- 返回顶部 ---------- */
.back-top{
  position:fixed;
  right:24px;
  bottom:24px;
  width:46px;height:46px;
  border-radius:12px;
  border:1px solid var(--line);
  background:var(--panel);
  color:var(--brand);
  display:flex;
  align-items:center;
  justify-content:center;
  cursor:pointer;
  opacity:0;
  visibility:hidden;
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
  z-index:1040;
}
.back-top.show{opacity:1;visibility:visible;}
.back-top:hover{transform:translateY(-3px);border-color:rgba(199,242,78,.4);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:0;
  background:#08110E;
  border-top:1px solid var(--line);
  padding-top:64px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.5fr 1fr 1fr 1.2fr;
  gap:40px;
  padding-bottom:48px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:12px;
  margin-bottom:18px;
}
.footer-about{
  font-size:14.5px;
  color:var(--muted);
  max-width:32em;
  margin-bottom:0;
}
.footer-col h4{
  font-size:15px;
  font-weight:700;
  margin-bottom:18px;
  color:var(--text);
}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{
  font-size:14px;
  color:var(--muted);
}
.footer-col ul li a:hover{color:var(--brand);}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  font-size:14px;
  color:var(--muted);
}
.footer-contact li i{
  color:var(--brand);
  margin-top:5px;
  font-size:13px;
}
.footer-bottom{
  display:flex;
  flex-wrap:wrap;
  justify-content:space-between;
  gap:12px;
  padding:22px 0 26px;
  border-top:1px solid var(--line);
  font-size:13.5px;
  color:var(--muted);
}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .reward-grid{grid-template-columns:repeat(2,1fr);}
  .metrics{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:991.98px){
  :root{--space:64px;}
  .nav-toggle{display:inline-flex;align-items:center;justify-content:center;}
  .main-nav{
    position:fixed;
    top:76px;left:0;right:0;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:16px 18px 24px;
    background:rgba(8,16,13,.98);
    border-bottom:1px solid var(--line);
    box-shadow:0 22px 40px rgba(0,0,0,.5);
    transform:translateY(-12px);
    opacity:0;
    visibility:hidden;
    transition:opacity .22s ease,transform .22s ease,visibility .22s ease;
    max-height:calc(100vh - 76px);
    overflow-y:auto;
  }
  .main-nav.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-link{padding:14px 12px;font-size:16px;border-radius:10px;}
  .nav-link.active::after{left:12px;right:auto;width:22px;bottom:8px;}
  .nav-cta{margin:10px 0 0;justify-content:center;padding:14px 20px;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .steps{grid-template-columns:1fr;gap:16px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:30px;}
  .form-grid{grid-template-columns:1fr;align-items:stretch;}
}
@media (max-width:575.98px){
  .container{padding-left:18px;padding-right:18px;}
  body{font-size:16px;}
  .section{padding:56px 0;}
  .page-hero{padding:52px 0 48px;}
  .page-hero h1{font-size:28px;}
  .hero-sub{font-size:15.5px;}
  .reward-grid{grid-template-columns:1fr;gap:16px;}
  .metrics{grid-template-columns:1fr;gap:16px;}
  .hero-stats{gap:22px;}
  .stat-item .stat-num{font-size:22px;}
  .tl-item{grid-template-columns:1fr;gap:10px;}
  .timeline::before{display:none;}
  .tl-time{text-align:left;font-weight:700;color:var(--brand);}
  .tl-body::before{display:none;}
  .tl-body{padding:18px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .faq-accordion .accordion-button{font-size:16.5px;padding:16px 18px;}
  .faq-accordion .accordion-body{padding:18px;}
  .form-panel{padding:22px;}
  .cta-band{padding:24px;}
  .back-top{right:16px;bottom:16px;}
}

/* roulang page: category4 */
:root{
  --bg-0:#0A1310;
  --bg-1:#122019;
  --panel:#13251F;
  --panel-2:#0F1D18;
  --line:#1F3A32;
  --accent:#C7F24E;
  --accent-hi:#D8FF6A;
  --warm:#FF7A2F;
  --violet:#7A5CFF;
  --paper:#F7F4EC;
  --paper-text:#23282A;
  --text:#EAF6F1;
  --muted:#9DB4AC;
  --r-sm:10px;
  --r-md:14px;
  --r-lg:22px;
  --shadow:0 18px 40px rgba(0,0,0,.45);
  --shadow-soft:0 10px 24px rgba(0,0,0,.32);
  --gap:24px;
  --section-space:88px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.9;
  color:var(--text);
  background:linear-gradient(135deg,#0A1310 0%,#122019 58%,#0C1714 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-md);}
a{color:var(--accent);text-decoration:none;transition:color .2s ease;}
a:hover{color:var(--accent-hi);text-decoration:underline;text-underline-offset:3px;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:.01em;line-height:1.36;color:var(--text);}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
button,input,textarea,select{font:inherit;color:inherit;}
::selection{background:rgba(199,242,78,.28);}
.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:24px;
  padding-right:24px;
}
.section{padding:var(--section-space) 0;}
.section-tight{padding:64px 0;}
.section-head{margin-bottom:40px;max-width:760px;}
.section-head h2{font-size:clamp(24px,2.6vw,32px);}
.section-head p{margin-top:14px;color:var(--muted);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.18em;color:var(--accent);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:2px;border-radius:2px;background:var(--accent);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(10,19,16,.88);
  backdrop-filter:blur(12px);
  border-bottom:1px solid var(--line);
  transition:background .25s ease,box-shadow .25s ease;
}
.site-header.scrolled{background:rgba(7,14,12,.97);box-shadow:0 10px 28px rgba(0,0,0,.45);}
.header-inner{display:flex;align-items:center;gap:20px;min-height:74px;}
.brand{display:flex;align-items:center;gap:11px;text-decoration:none;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:40px;height:40px;border-radius:12px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,var(--accent) 0%,#9FD52E 100%);
  color:#0A1310;font-weight:800;font-size:14px;letter-spacing:.04em;
  box-shadow:inset 0 0 0 1px rgba(0,0,0,.22),0 8px 18px rgba(199,242,78,.18);
  flex:none;
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-main{font-size:17px;font-weight:800;color:var(--text);}
.brand-sub{font-size:12px;letter-spacing:.14em;color:var(--accent);}
.main-nav{margin-left:auto;display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;padding:10px 14px;border-radius:var(--r-sm);
  font-size:15px;color:var(--muted);
  transition:color .2s ease,background .2s ease;
}
.nav-link:hover{color:var(--text);background:rgba(199,242,78,.07);text-decoration:none;}
.nav-link.active{color:var(--accent);}
.nav-link.active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:3px;
  height:2px;border-radius:2px;background:var(--accent);
}
.nav-cta{
  display:inline-flex;align-items:center;gap:8px;margin-left:12px;
  padding:10px 18px;border-radius:var(--r-sm);
  background:var(--accent);color:#0A1310;font-weight:700;font-size:15px;
  box-shadow:0 10px 22px rgba(199,242,78,.2);
  transition:transform .2s ease,background .2s ease,box-shadow .2s ease;
}
.nav-cta:hover{background:var(--accent-hi);color:#0A1310;transform:translateY(-2px);text-decoration:none;box-shadow:0 14px 26px rgba(199,242,78,.28);}
.nav-toggle{
  display:none;margin-left:auto;
  width:44px;height:44px;border-radius:12px;
  background:var(--panel);border:1px solid var(--line);color:var(--text);cursor:pointer;
}
.nav-toggle:hover{color:var(--accent);border-color:rgba(199,242,78,.4);}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  padding:72px 0 64px;
  border-bottom:1px solid var(--line);
  background-image:linear-gradient(185deg,rgba(10,19,16,.93) 0%,rgba(10,19,16,.97) 70%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-160px;width:420px;height:420px;
  background:radial-gradient(circle,rgba(199,242,78,.14) 0%,rgba(199,242,78,0) 70%);
  pointer-events:none;
}
.breadcrumb-line{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--muted);margin-bottom:22px;}
.breadcrumb-line a{color:var(--muted);}
.breadcrumb-line a:hover{color:var(--accent);}
.breadcrumb-line .current{color:var(--accent);}
.hero-kicker{display:block;font-size:14px;letter-spacing:.2em;color:var(--accent);font-weight:700;margin-bottom:10px;}
.hero-title{font-size:clamp(28px,4vw,48px);}
.hero-lead{margin-top:18px;max-width:720px;color:var(--muted);font-size:17px;}
.hero-meta{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 14px;border-radius:999px;
  background:rgba(19,37,31,.9);border:1px solid var(--line);
  font-size:13px;color:var(--muted);
}
.chip i{color:var(--accent);}
.search-bar{position:relative;margin-top:32px;max-width:620px;display:flex;gap:12px;}
.search-bar .search-input{
  flex:1;background:var(--panel-2);border:1px solid var(--line);border-radius:var(--r-sm);
  padding:14px 16px 14px 44px;font-size:15px;
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.search-bar .search-input::placeholder{color:var(--muted);}
.search-bar .search-input:focus{outline:none;border-color:var(--accent);background:#101F1A;box-shadow:0 0 0 3px rgba(199,242,78,.12);}
.search-bar .search-icon{position:absolute;left:16px;top:50%;transform:translateY(-50%);color:var(--muted);font-size:15px;}

/* ---------- 按钮 ---------- */
.btn-main,.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-sm);font-weight:700;font-size:15px;
  cursor:pointer;border:1px solid transparent;
  transition:transform .2s ease,background .2s ease,color .2s ease,box-shadow .2s ease,border-color .2s ease;
}
.btn-main{background:var(--accent);color:#0A1310;box-shadow:0 12px 24px rgba(199,242,78,.2);}
.btn-main:hover{background:var(--accent-hi);color:#0A1310;transform:translateY(-2px);text-decoration:none;box-shadow:0 16px 30px rgba(199,242,78,.28);}
.btn-ghost{background:transparent;color:var(--accent);border-color:var(--accent);}
.btn-ghost:hover{background:rgba(199,242,78,.1);color:var(--accent-hi);border-color:var(--accent-hi);text-decoration:none;transform:translateY(-2px);}
.btn-main:focus-visible,.btn-ghost:focus-visible,.nav-link:focus-visible,.nav-cta:focus-visible,.quick-link:focus-visible{
  outline:2px solid var(--accent);outline-offset:2px;
}

/* ---------- 快捷入口 ---------- */
.quick-strip{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);}
.quick-link{
  display:flex;align-items:center;gap:14px;
  padding:20px;border-radius:var(--r-md);
  background:var(--panel);border:1px solid var(--line);
  color:var(--text);box-shadow:var(--shadow-soft);
  transition:transform .2s ease,border-color .2s ease,box-shadow .2s ease;
}
.quick-link:hover{transform:translateY(-3px);border-color:rgba(199,242,78,.45);text-decoration:none;color:var(--text);box-shadow:var(--shadow);}
.quick-link .q-icon{
  width:42px;height:42px;flex:none;border-radius:12px;display:grid;place-items:center;
  background:rgba(199,242,78,.12);color:var(--accent);font-size:17px;
}
.quick-link .q-body{display:flex;flex-direction:column;line-height:1.45;}
.quick-link .q-title{font-size:15px;font-weight:700;}
.quick-link .q-desc{font-size:13px;color:var(--muted);}
.quick-link .q-arrow{margin-left:auto;color:var(--muted);font-size:13px;}

/* ---------- 问答双列 ---------- */
.qa-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:var(--gap);}
.qa-group{
  background:var(--panel);border:1px solid var(--line);
  border-radius:var(--r-lg);padding:26px 26px 20px;
  box-shadow:var(--shadow);
  position:relative;overflow:hidden;
}
.qa-group::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;
  background:linear-gradient(180deg,var(--accent) 0%,rgba(199,242,78,0) 100%);
}
.qa-group h3{font-size:20px;display:flex;align-items:center;gap:10px;}
.qa-group h3 i{color:var(--accent);font-size:16px;}
.qa-group .qa-hint{margin-top:8px;font-size:14px;color:var(--muted);}
.faq-list{margin-top:18px;}
.faq-item{border-top:1px solid var(--line);}
.faq-item:first-child{border-top:none;}
.faq-item summary{
  display:flex;align-items:flex-start;justify-content:space-between;gap:14px;
  list-style:none;cursor:pointer;padding:15px 0;
  font-size:16px;font-weight:600;color:var(--text);line-height:1.7;
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"\f078";font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:12px;color:var(--accent);flex:none;margin-top:6px;
  transition:transform .25s ease;
}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-item summary:hover{color:var(--accent);}
.faq-answer{
  background:var(--paper);color:var(--paper-text);
  border-radius:var(--r-sm);padding:16px 18px;margin:0 0 16px;
  font-size:15px;line-height:1.85;
}
.faq-answer strong{color:#1B4A38;}

/* ---------- 处理说明 ---------- */
.service-layout{display:grid;grid-template-columns:0.9fr 1.4fr;gap:40px;align-items:start;}
.service-figure{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);
}
.service-figure img{width:100%;height:100%;object-fit:cover;border-radius:0;}
.info-list{border-top:1px solid var(--line);}
.info-row{
  display:flex;gap:18px;align-items:flex-start;
  padding:20px 0;border-bottom:1px dashed var(--line);
}
.info-index{
  width:34px;height:34px;flex:none;border-radius:50%;
  display:grid;place-items:center;font-size:13px;font-weight:800;
  background:rgba(199,242,78,.12);color:var(--accent);
  border:1px solid rgba(199,242,78,.3);
}
.info-body h4{font-size:16px;margin-bottom:6px;}
.info-body p{font-size:15px;color:var(--muted);margin:0;}

/* ---------- 联系表单 ---------- */
.contact-grid{display:grid;grid-template-columns:1fr 1.15fr;gap:var(--gap);align-items:start;}
.contact-aside{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:30px;box-shadow:var(--shadow);
}
.contact-aside h3{font-size:21px;margin-bottom:12px;}
.contact-aside p{color:var(--muted);font-size:15px;}
.aside-list{margin-top:22px;display:flex;flex-direction:column;gap:14px;}
.aside-list li{display:flex;gap:12px;font-size:15px;color:var(--text);align-items:flex-start;}
.aside-list i{color:var(--accent);margin-top:5px;}
.contact-card{
  background:linear-gradient(160deg,#152822 0%,#101E19 100%);
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:32px;box-shadow:var(--shadow);
}
.form-field{display:flex;flex-direction:column;gap:8px;margin-bottom:20px;}
.form-field label{font-size:14px;font-weight:700;color:var(--text);}
.form-field label span{color:var(--warm);margin-left:4px;}
.form-control{
  width:100%;background:var(--panel-2);border:1px solid var(--line);
  border-radius:var(--r-sm);padding:13px 15px;font-size:15px;
  transition:border-color .2s ease,background .2s ease,box-shadow .2s ease;
}
.form-control::placeholder{color:var(--muted);}
.form-control:focus{outline:none;border-color:var(--accent);background:#11221C;box-shadow:0 0 0 3px rgba(199,242,78,.12);}
textarea.form-control{min-height:130px;resize:vertical;line-height:1.8;}
.form-note{font-size:13px;color:var(--muted);margin-top:14px;}

/* ---------- 相关链接 ---------- */
.link-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;}
.link-item{
  display:flex;align-items:center;gap:14px;
  padding:18px 20px;border-radius:var(--r-md);
  background:var(--panel-2);border:1px solid var(--line);
  color:var(--text);transition:transform .2s ease,border-color .2s ease,background .2s ease;
}
.link-item:hover{transform:translateY(-3px);border-color:rgba(199,242,78,.45);background:#13251F;text-decoration:none;color:var(--text);}
.link-item i.dot{color:var(--accent);font-size:14px;}
.link-item .l-text{display:flex;flex-direction:column;line-height:1.5;}
.link-item .l-text small{color:var(--muted);font-size:13px;}
.link-item .l-arrow{margin-left:auto;color:var(--muted);font-size:13px;}

/* ---------- CTA 条 ---------- */
.cta-band{
  display:flex;align-items:center;justify-content:space-between;gap:28px;
  padding:34px 36px;border-radius:var(--r-lg);
  background:linear-gradient(120deg,#172922 0%,#0F1D17 100%);
  border:1px solid var(--line);box-shadow:var(--shadow);
  position:relative;overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-120px;width:300px;height:300px;
  background:radial-gradient(circle,rgba(122,92,255,.16) 0%,rgba(122,92,255,0) 70%);
  pointer-events:none;
}
.cta-band h3{font-size:clamp(20px,2.2vw,26px);margin-bottom:8px;}
.cta-band p{color:var(--muted);font-size:15px;margin:0;}
.cta-actions{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:var(--section-space);
  background:#08110E;border-top:1px solid var(--line);
  padding:64px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.1fr;gap:36px;}
.footer-brand{display:flex;align-items:center;gap:11px;margin-bottom:18px;}
.footer-about{font-size:14px;color:var(--muted);line-height:1.9;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text);}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col ul li a{font-size:14px;color:var(--muted);}
.footer-col ul li a:hover{color:var(--accent);text-decoration:none;}
.footer-contact li{display:flex;gap:10px;font-size:14px;color:var(--muted);align-items:flex-start;}
.footer-contact li i{color:var(--accent);margin-top:5px;flex:none;}
.footer-bottom{
  display:flex;justify-content:space-between;gap:14px;flex-wrap:wrap;
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  font-size:13px;color:var(--muted);
}

/* ---------- 返回顶部 ---------- */
.to-top{
  position:fixed;right:24px;bottom:28px;z-index:70;
  width:46px;height:46px;border-radius:14px;
  display:grid;place-items:center;
  background:var(--panel);border:1px solid var(--line);color:var(--accent);
  box-shadow:var(--shadow);opacity:0;visibility:hidden;
  transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
}
.to-top.show{opacity:1;visibility:visible;}
.to-top:hover{transform:translateY(-3px);color:var(--accent-hi);border-color:rgba(199,242,78,.5);text-decoration:none;}

/* ---------- 响应式 ---------- */
@media (max-width:1199px){
  .header-inner{gap:14px;}
  .nav-link{padding:10px 11px;font-size:14px;}
}
@media (max-width:991px){
  :root{--section-space:64px;}
  .nav-toggle{display:grid;place-items:center;}
  .main-nav{
    position:fixed;left:0;right:0;top:74px;
    flex-direction:column;align-items:stretch;gap:4px;
    margin:0;padding:18px 20px 26px;
    background:#0F1C17;border-bottom:1px solid var(--line);
    box-shadow:0 24px 40px rgba(0,0,0,.5);
    max-height:calc(100vh - 74px);overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .25s ease,transform .25s ease,visibility .25s ease;
  }
  .main-nav.open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-link{padding:14px 12px;font-size:16px;border-radius:var(--r-sm);}
  .nav-link.active{background:rgba(199,242,78,.08);}
  .nav-link.active::after{left:0;top:14px;bottom:14px;right:auto;width:3px;height:auto;}
  .nav-cta{margin:12px 0 0;justify-content:center;padding:14px 18px;}
  .quick-strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .qa-grid{grid-template-columns:minmax(0,1fr);}
  .service-layout{grid-template-columns:minmax(0,1fr);gap:28px;}
  .contact-grid{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
}
@media (max-width:767px){
  .page-hero{padding:52px 0 48px;}
  .hero-lead{font-size:16px;}
  .section-head{margin-bottom:28px;}
  .cta-band{flex-direction:column;align-items:flex-start;padding:28px 24px;}
  .cta-actions{width:100%;}
  .cta-actions .btn-main,.cta-actions .btn-ghost{flex:1;}
  .search-bar{flex-direction:column;}
  .link-grid{grid-template-columns:minmax(0,1fr);}
  .qa-group{padding:22px 20px 16px;}
  .contact-card,.contact-aside{padding:24px;}
}
@media (max-width:576px){
  .container{padding-left:18px;padding-right:18px;}
  :root{--section-space:56px;}
  .hero-title{font-size:28px;}
  .quick-strip{grid-template-columns:minmax(0,1fr);}
  .footer-grid{grid-template-columns:minmax(0,1fr);gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .to-top{right:16px;bottom:18px;}
  .info-row{gap:14px;}
}