/* roulang page: index */
:root{
  --c-bg:#08110D;
  --c-panel:#0F1A15;
  --c-panel-2:#0B1511;
  --c-line:#1E2C25;
  --c-primary:#12D66B;
  --c-primary-dim:rgba(18,214,107,.12);
  --c-accent:#E8FF59;
  --c-warn:#FF6A2B;
  --c-text:#E6EFE9;
  --c-text-2:#8FA396;
  --c-text-3:#55665C;
  --r-card:14px;
  --r-input:10px;
  --r-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --max:1200px;
  --header-h:72px;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;background:var(--c-bg);color:var(--c-text);
  font-family:"HarmonyOS Sans SC","PingFang SC","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;line-height:1.75;-webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,select,textarea{font:inherit;color:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:4px}
::selection{background:var(--c-primary);color:#06120C}
.num,.meta,.stat__value,.plan__price,.step__no,.entry__no,.hero__stat-num{font-variant-numeric:tabular-nums}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 40px}
@media(max-width:1199px){.container{padding:0 32px}}
@media(max-width:768px){.container{padding:0 20px}}

/* ---------- header ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:80;transition:background .25s ease,border-color .25s ease,box-shadow .25s ease;border-bottom:1px solid transparent}
.site-header.is-stuck{background:rgba(8,17,13,.92);border-bottom-color:var(--c-line);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.header-inner{height:var(--header-h);display:flex;align-items:center;justify-content:space-between;gap:24px}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:17px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.logo__dot{width:8px;height:8px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 0 4px rgba(18,214,107,.14)}
.logo__sub{color:var(--c-text-3);font-weight:500;font-size:13px;letter-spacing:.14em;margin-left:2px}
.main-nav{display:flex;align-items:center;gap:34px}
.main-nav a{position:relative;font-size:14.5px;color:var(--c-text-2);padding:6px 0;transition:color .2s ease}
.main-nav a::after{content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;background:var(--c-primary);transform:scaleX(0);transform-origin:left;transition:transform .22s ease}
.main-nav a:hover{color:var(--c-text)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--c-text)}
.main-nav a.is-active::after{transform:scaleX(1)}
.header-cta{display:flex;align-items:center;gap:14px}
.nav-toggle{display:none;width:42px;height:42px;border-radius:var(--r-input);border:1px solid var(--c-line);background:transparent;align-items:center;justify-content:center;cursor:pointer}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-text);position:relative}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--c-text)}
.nav-toggle span::before{top:-6px}
.nav-toggle span::after{top:6px}
.mobile-drawer{display:none;border-bottom:1px solid var(--c-line);background:rgba(11,21,17,.98);backdrop-filter:blur(12px)}
.mobile-drawer.is-open{display:block}
.mobile-drawer__inner{padding:14px 0 22px;display:grid;gap:4px}
.mobile-drawer a{padding:13px 0;font-size:16px;color:var(--c-text-2);border-bottom:1px solid var(--c-line)}
.mobile-drawer a.is-active{color:var(--c-primary)}
.mobile-drawer .btn{margin-top:16px}
@media(max-width:900px){
  .main-nav,.header-cta .btn{display:none}
  .nav-toggle{display:inline-flex}
}

/* ---------- buttons ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--r-pill);border:1px solid transparent;font-size:15px;font-weight:600;line-height:1;cursor:pointer;transition:transform .2s ease,filter .2s ease,background-color .2s ease,border-color .2s ease,color .2s ease;white-space:nowrap}
.btn--primary{background:var(--c-primary);color:#06120C}
.btn--primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn--primary:active{transform:translateY(0)}
.btn--ghost{background:transparent;border-color:var(--c-line);color:var(--c-text)}
.btn--ghost:hover{background:var(--c-panel);border-color:var(--c-primary);transform:translateY(-1px)}
.btn--sm{height:40px;padding:0 18px;font-size:14px}
.btn--block{width:100%}
.btn[disabled],.btn.is-disabled{opacity:.4;cursor:not-allowed;transform:none;filter:none}

/* ---------- hero ---------- */
.hero{position:relative;padding:calc(var(--header-h) + 76px) 0 90px;overflow:hidden}
.hero__bg{position:absolute;inset:0;background-image:url('/assets/images/backpic/back-1.webp');background-size:cover;background-position:center;opacity:.34}
.hero__bg::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,17,13,.72) 0%,rgba(8,17,13,.9) 55%,var(--c-bg) 100%)}
.hero::before{content:"";position:absolute;inset:0;z-index:1;pointer-events:none;background-image:repeating-linear-gradient(135deg,rgba(230,239,233,.04) 0 1px,transparent 1px 13px)}
.hero__inner{position:relative;z-index:2;max-width:940px}
.eyebrow{display:inline-flex;align-items:center;gap:9px;font-size:13px;font-weight:600;letter-spacing:.16em;color:var(--c-primary)}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--c-primary)}
.hero h1{font-size:clamp(32px,5vw,56px);line-height:1.15;font-weight:800;letter-spacing:-.01em;margin:22px 0 20px}
.hero h1 em{font-style:normal;color:var(--c-primary)}
.hero__lead{font-size:17px;line-height:1.85;color:var(--c-text-2);max-width:720px}
.hero__actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:36px}
.hero__stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--c-line);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;margin-top:60px}
.hero__stat{background:rgba(8,17,13,.72);padding:20px 22px}
.hero__stat-num{font-size:26px;font-weight:800;color:var(--c-primary);line-height:1.2;letter-spacing:-.01em}
.hero__stat-num i{font-style:normal;font-size:14px;color:var(--c-accent);margin-left:3px;font-weight:700}
.hero__stat-label{margin-top:6px;font-size:13px;color:var(--c-text-3);line-height:1.6}

/* ---------- anchor bar ---------- */
.anchorbar{position:sticky;top:var(--header-h);z-index:60;background:rgba(8,17,13,.94);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px)}
.anchorbar__inner{display:flex;gap:32px;overflow-x:auto;padding:15px 0;scrollbar-width:none}
.anchorbar__inner::-webkit-scrollbar{display:none}
.anchorbar a{position:relative;font-size:14px;color:var(--c-text-2);white-space:nowrap;padding-bottom:3px;transition:color .2s ease}
.anchorbar a::after{content:"";position:absolute;left:0;right:0;bottom:-16px;height:2px;background:var(--c-primary);transform:scaleX(0);transition:transform .22s ease}
.anchorbar a:hover{color:var(--c-text)}
.anchorbar a.is-active{color:var(--c-primary)}
.anchorbar a.is-active::after{transform:scaleX(1)}

/* ---------- section ---------- */
.section{padding:112px 0}
.section--tight{padding:80px 0}
.section--panel{background:var(--c-panel-2);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line)}
.sec-head{max-width:780px;margin-bottom:52px}
.sec-head h2{position:relative;padding-left:18px;font-size:clamp(26px,3.6vw,40px);line-height:1.25;font-weight:700;letter-spacing:-.01em;margin:16px 0 16px}
.sec-head h2::before{content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:3px;border-radius:2px;background:var(--c-primary)}
.sec-head p{color:var(--c-text-2);font-size:16px}
.section[id]{scroll-margin-top:140px}
@media(max-width:768px){
  .section{padding:66px 0}
  .section--tight{padding:52px 0}
  .sec-head{margin-bottom:36px}
}

/* ---------- entries ---------- */
.entries{border-top:1px solid var(--c-line)}
.entry{display:grid;grid-template-columns:90px 1fr 40px;gap:24px;align-items:center;padding:32px 10px;border-bottom:1px solid var(--c-line);transition:background .25s ease,transform .25s ease}
.entry:hover{background:linear-gradient(90deg,rgba(18,214,107,.07),transparent 70%);transform:translateX(6px)}
.entry__no{font-size:15px;font-weight:700;letter-spacing:.1em;color:var(--c-primary)}
.entry h3{font-size:20px;font-weight:600;margin-bottom:8px}
.entry p{color:var(--c-text-2);font-size:15px;max-width:780px}
.entry__arrow{text-align:right;color:var(--c-text-3);font-size:18px;transition:color .25s ease,transform .25s ease}
.entry:hover .entry__arrow{color:var(--c-primary);transform:translateX(6px)}
@media(max-width:768px){
  .entry{grid-template-columns:52px 1fr;gap:16px;padding:24px 4px}
  .entry__arrow{display:none}
}

/* ---------- demo steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:26px;margin-bottom:44px}
.step{position:relative;padding-top:28px;border-top:1px solid var(--c-line)}
.step::before{content:"";position:absolute;top:-4px;left:0;width:7px;height:7px;border-radius:50%;background:var(--c-primary)}
.step__no{display:block;font-size:13px;font-weight:700;letter-spacing:.12em;color:var(--c-primary);margin-bottom:10px}
.step h3{font-size:18px;font-weight:600;margin-bottom:8px}
.step p{font-size:14.5px;color:var(--c-text-2);line-height:1.7}
.demo-visual{position:relative;border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;background:var(--c-panel)}
.demo-visual img{width:100%;aspect-ratio:16/7;object-fit:cover;opacity:.9}
.demo-visual figcaption{position:absolute;left:0;right:0;bottom:0;padding:16px 20px;font-size:13px;color:var(--c-text-2);background:linear-gradient(180deg,transparent,rgba(8,17,13,.92))}
@media(max-width:1024px){
  .steps{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:560px){
  .steps{grid-template-columns:1fr}
  .demo-visual img{aspect-ratio:16/10}
}

/* ---------- proof ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--c-line);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden}
.stat{background:var(--c-panel);padding:28px 24px}
.stat__value{font-size:clamp(30px,3.4vw,42px);font-weight:800;line-height:1;color:var(--c-primary);letter-spacing:-.02em}
.stat__value i{font-style:normal;font-size:16px;color:var(--c-accent);font-weight:700;margin-left:4px}
.stat__label{margin-top:12px;font-size:14px;color:var(--c-text-2);line-height:1.65}
.quotes{display:grid;grid-template-columns:1fr 1fr;gap:24px;margin-top:26px}
.quote{background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px;transition:border-color .25s ease,transform .25s ease}
.quote:hover{border-color:var(--c-primary);transform:translateY(-2px)}
.quote:nth-child(2n){margin-top:38px}
.quote p{font-size:16px;line-height:1.8;color:var(--c-text)}
.quote footer{margin-top:18px;padding-top:16px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-3)}
@media(max-width:1024px){
  .stats{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .quotes{grid-template-columns:1fr}
  .quote:nth-child(2n){margin-top:0}
}

/* ---------- news ---------- */
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.news-card{display:flex;flex-direction:column;background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);overflow:hidden;transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease}
.news-card:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--shadow)}
.news-card__media{display:block;aspect-ratio:16/9;overflow:hidden;background:#0A130F}
.news-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .45s ease}
.news-card:hover .news-card__media img{transform:scale(1.05)}
.news-card__body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1}
.news-card__title{font-size:16.5px;font-weight:600;line-height:1.55;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__title a:hover{color:var(--c-primary)}
.news-card__desc{font-size:14px;color:var(--c-text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.news-card__meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:12.5px;color:var(--c-text-3)}
.news-card__more{color:var(--c-primary);font-weight:600}
.tag{display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:var(--r-pill);background:var(--c-primary-dim);color:var(--c-primary);font-size:12px;font-weight:600;letter-spacing:.02em;align-self:flex-start}
.empty-state{grid-column:1/-1;display:flex;flex-direction:column;align-items:center;gap:16px;padding:64px 24px;border:1px dashed var(--c-line);border-radius:var(--r-card);background:var(--c-panel);text-align:center}
.empty-state__icon{width:44px;height:44px;border:1px solid var(--c-line);border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--c-primary);font-size:20px}
.empty-state p{color:var(--c-text-2);font-size:15px}
@media(max-width:1024px){.news-grid{grid-template-columns:repeat(2,1fr)}}
@media(max-width:560px){.news-grid{grid-template-columns:1fr}}

/* ---------- plans ---------- */
.plans{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;align-items:start}
.plan{position:relative;display:flex;flex-direction:column;gap:20px;padding:30px 26px 28px;background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease}
.plan:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--shadow)}
.plan--featured{border-color:var(--c-primary);box-shadow:var(--shadow)}
.plan--featured::before{content:"";position:absolute;top:0;left:0;right:0;height:3px;background:var(--c-primary);border-radius:var(--r-card) var(--r-card) 0 0}
.plan__badge{align-self:flex-start;font-size:12px;font-weight:700;color:var(--c-accent);border:1px solid rgba(232,255,89,.4);border-radius:var(--r-pill);padding:3px 10px}
.plan__name{font-size:19px;font-weight:700}
.plan__desc{font-size:14px;color:var(--c-text-2);line-height:1.7}
.plan__price{display:flex;align-items:baseline;gap:6px;font-size:42px;font-weight:800;line-height:1;color:var(--c-accent);letter-spacing:-.02em}
.plan__price small{font-size:14px;font-weight:500;color:var(--c-text-3);letter-spacing:0}
.checks{display:grid;gap:11px;margin-top:4px}
.checks li{position:relative;padding-left:22px;font-size:14.5px;color:var(--c-text-2);line-height:1.65}
.checks li::before{content:"";position:absolute;left:0;top:.58em;width:8px;height:8px;border-radius:2px;background:var(--c-primary)}
.plan .btn{margin-top:auto}
@media(max-width:1024px){.plans{grid-template-columns:1fr;max-width:560px;margin:0 auto}}

/* ---------- faq ---------- */
.faq{max-width:820px;margin:0 auto;border-top:1px solid var(--c-line)}
.faq__item{border-bottom:1px solid var(--c-line)}
.faq__q{position:relative;width:100%;padding:22px 44px 22px 0;background:none;border:0;text-align:left;font-size:16.5px;font-weight:600;color:var(--c-text);cursor:pointer;transition:color .2s ease}
.faq__q::after{content:"+";position:absolute;right:6px;top:50%;transform:translateY(-50%);color:var(--c-primary);font-size:20px;font-weight:400;line-height:1;transition:transform .25s ease}
.faq__q:hover{color:var(--c-primary)}
.faq__item.is-open .faq__q{color:var(--c-primary)}
.faq__item.is-open .faq__q::after{content:"−"}
.faq__a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq__a p{padding:0 44px 24px 0;font-size:15px;line-height:1.8;color:var(--c-text-2)}

/* ---------- cta / form ---------- */
.cta-panel{display:grid;grid-template-columns:1fr 1fr;gap:52px;align-items:center;padding:52px;border:1px solid var(--c-line);border-radius:20px;background:linear-gradient(140deg,rgba(18,214,107,.09),rgba(15,26,21,.9) 42%,var(--c-panel))}
.cta-panel h2{font-size:clamp(24px,3vw,34px);font-weight:700;line-height:1.3;letter-spacing:-.01em;margin-bottom:14px}
.cta-panel > div > p{color:var(--c-text-2);font-size:15.5px}
.cta-note{margin-top:22px;display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3)}
.cta-note::before{content:"";width:7px;height:7px;border-radius:50%;background:var(--c-primary);flex:none}
.form-card{background:rgba(8,17,13,.6);border:1px solid var(--c-line);border-radius:var(--r-card);padding:28px}
.field{display:grid;gap:8px;margin-bottom:16px}
.field label{font-size:13.5px;font-weight:600;color:var(--c-text-2)}
.field input,.field select{width:100%;height:46px;padding:0 14px;background:#0A130F;border:1px solid var(--c-line);border-radius:var(--r-input);color:var(--c-text);font-size:15px;transition:border-color .2s ease,box-shadow .2s ease}
.field input::placeholder{color:var(--c-text-3)}
.field input:focus,.field select:focus{outline:none;border-color:var(--c-primary);box-shadow:inset 0 0 0 1px rgba(18,214,107,.22)}
.field.has-error input,.field.has-error select{border-color:var(--c-warn)}
.field__hint{font-size:13px;color:var(--c-warn);display:none}
.field.has-error .field__hint{display:block}
.form-tip{margin-top:14px;font-size:13px;color:var(--c-text-3);line-height:1.7}
@media(max-width:1024px){
  .cta-panel{grid-template-columns:1fr;gap:34px;padding:36px 28px}
}

/* ---------- footer ---------- */
.site-footer{margin-top:0;padding:66px 0 0;background:var(--c-panel-2);border-top:1px solid var(--c-line)}
.footer-grid{display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px}
.footer-brand p{margin-top:18px;font-size:14px;color:var(--c-text-2);line-height:1.8;max-width:340px}
.footer-col h4{font-size:14px;font-weight:700;letter-spacing:.08em;color:var(--c-text);margin-bottom:18px}
.footer-col li{margin-bottom:11px}
.footer-col a,.footer-col span{font-size:14px;color:var(--c-text-2);transition:color .2s ease}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{margin-top:52px;padding:22px 0;border-top:1px solid var(--c-line);display:flex;flex-wrap:wrap;gap:10px 24px;align-items:center;justify-content:space-between;font-size:13px;color:var(--c-text-3)}
.footer-bottom a{color:var(--c-text-3)}
.footer-bottom a:hover{color:var(--c-primary)}
@media(max-width:1024px){.footer-grid{grid-template-columns:1fr 1fr;gap:34px}}
@media(max-width:560px){.footer-grid{grid-template-columns:1fr}}

/* ---------- float cta ---------- */
.float-cta{position:fixed;right:28px;bottom:28px;z-index:90;opacity:0;visibility:hidden;transform:translateY(14px);transition:opacity .3s ease,transform .3s ease,visibility .3s ease}
.float-cta.is-visible{opacity:1;visibility:visible;transform:none}
@media(max-width:768px){
  .float-cta{left:0;right:0;bottom:0;transform:translateY(100%)}
  .float-cta.is-visible{transform:none}
  .float-cta .btn{width:100%;height:56px;border-radius:0;font-size:16px}
}

/* roulang page: article */
:root{
  --c-primary:#12D66B;
  --c-base:#08110D;
  --c-panel:#0F1A15;
  --c-line:#1E2C25;
  --c-accent:#E8FF59;
  --c-warn:#FF6A2B;
  --c-text:#E6EFE9;
  --c-text-2:#8FA396;
  --c-text-3:#55665C;
  --r-card:14px;
  --r-input:10px;
  --r-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-base);
  color:var(--c-text);
  font-family:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit}
h1,h2,h3,h4,p,ul,ol,figure{margin:0}
ul,ol{padding:0}
::selection{background:rgba(18,214,107,.3);color:#fff}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px}

/* ---------- Header / Nav ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(8,17,13,.72);
  border-bottom:1px solid transparent;
  transition:background .3s ease,border-color .3s ease;
}
.site-header.is-scrolled{
  background:rgba(8,17,13,.92);
  border-bottom-color:var(--c-line);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
}
.nav-wrap{
  position:relative;
  display:flex;align-items:center;justify-content:space-between;
  gap:24px;height:72px;
}
.logo{
  display:inline-flex;align-items:baseline;
  font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--c-text);
  white-space:nowrap;
}
.logo span{color:var(--c-primary);margin-left:2px}
.main-nav{display:flex;align-items:center;gap:6px}
.main-nav a{
  position:relative;
  padding:9px 14px;
  font-size:15px;
  color:var(--c-text-2);
  transition:color .2s ease;
}
.main-nav a::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;
  background:var(--c-primary);border-radius:2px;
  transform:scaleX(0);transform-origin:left;
  transition:transform .25s ease;
}
.main-nav a:hover{color:var(--c-text)}
.main-nav a:hover::after,.main-nav a.is-active::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--c-text)}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-line);
  border-radius:var(--r-input);background:transparent;cursor:pointer;
  padding:0;align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--c-text);border-radius:2px;transition:.25s}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(7px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-7px) rotate(-45deg)}

/* ---------- Buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:14px 28px;border:1px solid transparent;cursor:pointer;
  border-radius:var(--r-pill);
  transition:transform .2s ease,filter .2s ease,background .2s ease,border-color .2s ease,color .2s ease;
  white-space:nowrap;
}
.btn:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.btn-primary{background:var(--c-primary);color:#04140B}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px)}
.btn-ghost{
  border-radius:var(--r-input);
  border-color:var(--c-line);color:var(--c-text);background:transparent;
}
.btn-ghost:hover{background:var(--c-panel);border-color:var(--c-primary);transform:translateY(-1px)}
.btn-sm{padding:10px 20px;font-size:14px}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none}

/* ---------- Breadcrumb / Page head ---------- */
.page-head{padding:32px 0 0}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--c-text-3);line-height:1.6;
}
.breadcrumb a{color:var(--c-text-3);transition:color .2s ease}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb .sep{color:var(--c-text-3);opacity:.6}
.breadcrumb .current{color:var(--c-text-2)}
.breadcrumb .current:last-child{
  max-width:520px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}

/* ---------- Article ---------- */
.article-head{padding:26px 0 30px;border-bottom:1px solid var(--c-line)}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:13px;font-weight:600;letter-spacing:.02em;
  color:var(--c-primary);background:rgba(18,214,107,.12);
  border-radius:var(--r-pill);padding:6px 14px;
}
.article-title{
  font-size:clamp(28px,4.2vw,44px);
  font-weight:800;line-height:1.25;letter-spacing:-.01em;
  margin:18px 0 20px;color:var(--c-text);
}
.meta-row{
  display:flex;flex-wrap:wrap;align-items:center;gap:10px 22px;
  font-size:14px;color:var(--c-text-3);
  font-variant-numeric:tabular-nums;
}
.meta-row .dot{width:4px;height:4px;border-radius:50%;background:var(--c-text-3);display:inline-block}

.article-layout{
  display:grid;
  grid-template-columns:minmax(0,1fr) 300px;
  gap:56px;
  padding:36px 0 96px;
  align-items:start;
}
.article-body{
  max-width:760px;
  font-size:17px;
  line-height:1.8;
  color:#D6E2DA;
}
.article-body p{margin:0 0 1.2em}
.article-body h2{
  position:relative;
  margin:48px 0 18px;
  padding-left:16px;
  font-size:clamp(22px,2.6vw,28px);
  font-weight:700;
  line-height:1.4;
  color:var(--c-text);
}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;
  background:var(--c-primary);border-radius:2px;
}
.article-body h3{
  margin:32px 0 12px;
  font-size:20px;font-weight:700;line-height:1.5;
  color:var(--c-text);
}
.article-body ul,.article-body ol{margin:0 0 1.2em;padding-left:0;list-style:none}
.article-body ul li{position:relative;padding-left:22px;margin:10px 0}
.article-body ul li::before{
  content:"";position:absolute;left:4px;top:.72em;
  width:6px;height:6px;border-radius:2px;background:var(--c-primary);
}
.article-body ol{counter-reset:li;padding-left:0}
.article-body ol li{position:relative;padding-left:34px;margin:10px 0;counter-increment:li}
.article-body ol li::before{
  content:counter(li,decimal-leading-zero);
  position:absolute;left:0;top:0;
  font-size:14px;font-weight:700;color:var(--c-primary);
  font-variant-numeric:tabular-nums;
}
.article-body blockquote{
  margin:26px 0;padding:16px 22px;
  border-left:3px solid var(--c-primary);
  background:var(--c-panel);
  border-radius:0 10px 10px 0;
  color:var(--c-text-2);
}
.article-body blockquote p:last-child{margin-bottom:0}
.article-body img{border-radius:12px;margin:26px 0;width:100%}
.article-body a{color:var(--c-primary);text-decoration:underline;text-underline-offset:3px}
.article-body a:hover{filter:brightness(1.1)}
.article-body table{
  width:100%;border-collapse:collapse;margin:26px 0;font-size:15px;
  font-variant-numeric:tabular-nums;
}
.article-body th,.article-body td{
  border:1px solid var(--c-line);padding:11px 14px;text-align:left;
}
.article-body th{background:var(--c-panel);color:var(--c-text);font-weight:600}
.article-body code{
  background:var(--c-panel);border:1px solid var(--c-line);
  padding:2px 6px;border-radius:6px;font-size:.9em;
}
.article-body hr{border:0;border-top:1px solid var(--c-line);margin:40px 0}

.article-empty{
  max-width:760px;
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:56px 32px;text-align:center;
}
.article-empty .empty-mark{
  width:48px;height:48px;margin:0 auto 18px;border-radius:12px;
  border:1px solid var(--c-line);background:rgba(18,214,107,.1);
  display:flex;align-items:center;justify-content:center;
  color:var(--c-primary);font-size:20px;font-weight:800;
}
.article-empty h2{font-size:20px;font-weight:700;margin-bottom:10px}
.article-empty p{color:var(--c-text-2);font-size:15px;margin-bottom:24px}

.article-foot{
  max-width:760px;
  margin-top:48px;padding-top:28px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:20px;
}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}
.tag{
  font-size:13px;color:var(--c-text-2);
  border:1px solid var(--c-line);border-radius:var(--r-pill);
  padding:6px 14px;
}
.tag:hover{border-color:var(--c-primary);color:var(--c-primary)}

/* ---------- Sidebar ---------- */
.article-side{position:sticky;top:104px;display:grid;gap:20px}
.side-card{
  background:var(--c-panel);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:22px 22px 18px;
  box-shadow:var(--shadow);
}
.side-card h2{
  font-size:14px;font-weight:700;letter-spacing:.06em;
  color:var(--c-text-2);margin-bottom:14px;
  padding-left:10px;position:relative;
}
.side-card h2::before{
  content:"";position:absolute;left:0;top:.28em;bottom:.28em;width:3px;
  background:var(--c-primary);border-radius:2px;
}
.side-list{display:grid;gap:2px}
.side-list a{
  display:flex;align-items:flex-start;gap:10px;
  padding:11px 0;font-size:15px;color:var(--c-text-2);
  border-bottom:1px solid var(--c-line);
  transition:color .2s ease;
}
.side-list a:last-child{border-bottom:0;padding-bottom:0}
.side-list a:hover{color:var(--c-primary)}
.side-list .idx{
  font-size:12px;font-weight:700;color:var(--c-text-3);
  font-variant-numeric:tabular-nums;padding-top:3px;
}
.side-cta{
  background:linear-gradient(180deg,rgba(18,214,107,.12),rgba(18,214,107,0));
  border:1px solid rgba(18,214,107,.35);
  border-radius:var(--r-card);
  padding:24px 22px;
}
.side-cta strong{display:block;font-size:17px;font-weight:700;margin-bottom:8px}
.side-cta p{font-size:14px;color:var(--c-text-2);line-height:1.7;margin-bottom:18px}
.side-cta .btn{width:100%}

/* ---------- Mobile TOC ---------- */
.toc-mobile{display:none;margin:24px 0 0}
.toc-mobile summary{
  cursor:pointer;list-style:none;
  display:flex;align-items:center;justify-content:space-between;
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-input);
  padding:14px 18px;font-size:15px;font-weight:600;
}
.toc-mobile summary::-webkit-details-marker{display:none}
.toc-mobile summary::after{content:"+";color:var(--c-primary);font-size:18px;font-weight:700}
.toc-mobile[open] summary::after{content:"−"}
.toc-mobile[open] summary{border-color:var(--c-primary)}
.toc-mobile ul{margin:10px 0 0;padding:0;list-style:none;border:1px solid var(--c-line);border-radius:var(--r-input);overflow:hidden}
.toc-mobile ul li a{display:block;padding:12px 18px;font-size:15px;color:var(--c-text-2);border-bottom:1px solid var(--c-line)}
.toc-mobile ul li:last-child a{border-bottom:0}
.toc-mobile ul li a:hover{color:var(--c-primary);background:var(--c-panel)}

/* ---------- Related ---------- */
.related{padding:0 0 96px}
.section-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:24px;margin-bottom:32px;
}
.section-head h2{
  position:relative;padding-left:16px;
  font-size:clamp(22px,2.6vw,30px);font-weight:700;letter-spacing:-.01em;line-height:1.35;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.22em;bottom:.22em;width:3px;
  background:var(--c-primary);border-radius:2px;
}
.section-head p{font-size:14px;color:var(--c-text-3);max-width:420px}
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px}
.card{
  display:flex;flex-direction:column;
  background:var(--c-panel);border:1px solid var(--c-line);
  border-radius:var(--r-card);overflow:hidden;
  transition:border-color .25s ease,transform .25s ease,box-shadow .25s ease;
}
.card:hover{border-color:var(--c-primary);transform:translateY(-2px);box-shadow:var(--shadow)}
.card:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:#0B1611}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.card:hover .card-media img{transform:scale(1.04)}
.card-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:10px;flex:1}
.card-tag{align-self:flex-start;font-size:12px;font-weight:600;color:var(--c-primary);background:rgba(18,214,107,.12);border-radius:var(--r-pill);padding:4px 12px}
.card-body h3{font-size:17px;font-weight:600;line-height:1.5;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.card-body p{font-size:14px;line-height:1.7;color:var(--c-text-2);display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden}
.card-meta{margin-top:auto;padding-top:14px;border-top:1px solid var(--c-line);font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums;display:flex;justify-content:space-between;gap:12px}

/* ---------- CTA band ---------- */
.cta-band{padding-bottom:96px}
.cta-inner{
  position:relative;overflow:hidden;
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  background:var(--c-panel);border:1px solid var(--c-line);border-radius:var(--r-card);
  padding:40px 44px;
}
.cta-inner::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:var(--c-primary);
}
.cta-inner h2{font-size:clamp(20px,2.4vw,26px);font-weight:700;margin-bottom:10px;line-height:1.4}
.cta-inner p{font-size:15px;color:var(--c-text-2);max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;flex-shrink:0}

/* ---------- Floating CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:80;
  opacity:0;visibility:hidden;transform:translateY(14px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta .btn{box-shadow:var(--shadow)}

/* ---------- Footer ---------- */
.site-footer{border-top:1px solid var(--c-line);background:#060D0A;padding-top:64px}
.footer-grid{
  display:grid;grid-template-columns:1.7fr 1fr 1fr 1.2fr;gap:40px;
  padding-bottom:48px;
}
.footer-brand .logo{font-size:20px;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;color:var(--c-text-3);max-width:320px}
.footer-col h3{
  font-size:14px;font-weight:700;letter-spacing:.06em;color:var(--c-text);
  margin-bottom:18px;
}
.footer-col ul{list-style:none;display:grid;gap:12px}
.footer-col ul li a{font-size:14px;color:var(--c-text-2);transition:color .2s ease}
.footer-col ul li a:hover{color:var(--c-primary)}
.footer-col .contact-line{font-size:14px;color:var(--c-text-2);line-height:1.9}
.footer-col .contact-line strong{color:var(--c-text);font-weight:600}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:22px 0 28px;
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:12px;
  font-size:13px;color:var(--c-text-3);font-variant-numeric:tabular-nums;
}

/* ---------- Responsive ---------- */
@media (max-width:1199px){
  .container{padding:0 32px}
  .article-layout{gap:40px}
}
@media (max-width:1024px){
  .container{padding:0 32px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:0;padding:32px 0 72px}
  .article-side{position:static;margin-top:56px;grid-template-columns:repeat(2,minmax(0,1fr))}
  .side-cta{grid-column:1 / -1}
  .toc-mobile{display:block}
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex}
  .main-nav{
    position:absolute;left:-32px;right:-32px;top:72px;
    flex-direction:column;align-items:stretch;gap:0;
    background:rgba(8,17,13,.98);
    border-bottom:1px solid var(--c-line);
    padding:6px 32px 18px;
    display:none;
  }
  .main-nav.is-open{display:flex}
  .main-nav a{padding:14px 0;border-bottom:1px solid var(--c-line);font-size:16px}
  .main-nav a::after{display:none}
  .main-nav a.is-active{color:var(--c-primary)}
  .nav-actions .btn-sm{display:none}
  .cta-inner{flex-direction:column;align-items:flex-start;padding:32px 28px}
}
@media (max-width:768px){
  .container{padding:0 20px}
  .page-head{padding:24px 0 0}
  .article-head{padding:20px 0 24px}
  .article-title{margin:14px 0 16px}
  .article-body{font-size:16px;line-height:1.78}
  .article-body h2{margin:38px 0 14px}
  .article-layout{padding:26px 0 64px}
  .article-foot{margin-top:36px;flex-direction:column;align-items:flex-start}
  .related{padding-bottom:64px}
  .cta-band{padding-bottom:64px}
  .card-grid{grid-template-columns:minmax(0,1fr)}
  .article-side{grid-template-columns:minmax(0,1fr);gap:18px;margin-top:44px}
  .float-cta{right:0;left:0;bottom:0}
  .float-cta .btn{
    width:100%;border-radius:0;
    padding:17px 20px;font-size:16px;
  }
  .site-footer{padding-top:48px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (max-width:480px){
  .container{padding:0 18px}
  .logo{font-size:17px}
  .article-body{font-size:15.5px}
  .breadcrumb .current:last-child{max-width:200px}
  .cta-actions{width:100%}
  .cta-actions .btn{flex:1}
}

/* roulang page: category1 */
:root{
  --c-primary:#12D66B;
  --c-accent:#E8FF59;
  --c-warn:#FF6A2B;
  --c-bg:#08110D;
  --c-panel:#0F1A15;
  --c-line:#1E2C25;
  --c-text:#E6EFE9;
  --c-text-2:#8FA396;
  --c-text-3:#55665C;
  --r-card:14px;
  --r-input:10px;
  --r-pill:999px;
  --shadow:0 8px 24px rgba(0,0,0,.35);
  --container:1200px;
  --font-cn:"HarmonyOS Sans SC","Source Han Sans SC","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
  --font-num:"Inter","SF Pro Text",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--c-bg);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:17px;
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0}
ul,ol{padding:0;list-style:none}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none;transition:color .2s ease}
button,input,select,textarea{font:inherit;color:inherit}
::selection{background:var(--c-primary);color:#08110D}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:3px;border-radius:6px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-feature-settings:"tnum" 1}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 40px}
@media (max-width:1199px){.container{padding:0 32px}}
@media (max-width:768px){.container{padding:0 20px}}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:90;
  background:rgba(8,17,13,.92);
  border-bottom:1px solid var(--c-line);
  backdrop-filter:blur(10px);
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  gap:28px;min-height:76px;
}
.logo{
  font-size:19px;font-weight:800;letter-spacing:-.01em;color:var(--c-text);
  display:inline-flex;align-items:center;gap:8px;white-space:nowrap;
}
.logo-dot{
  width:8px;height:8px;border-radius:50%;background:var(--c-primary);
  box-shadow:0 0 0 4px rgba(18,214,107,.14);
}
.main-nav{display:flex;align-items:center;gap:30px}
.main-nav a{
  position:relative;font-size:15px;color:var(--c-text-2);padding:8px 0;
}
.main-nav a::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:2px;
  background:var(--c-primary);transform:scaleX(0);transform-origin:left;
  transition:transform .24s ease;
}
.main-nav a:hover{color:var(--c-text)}
.main-nav a:hover::after{transform:scaleX(1)}
.main-nav a.is-active{color:var(--c-text);font-weight:600}
.main-nav a.is-active::after{transform:scaleX(1)}
.header-cta{flex:0 0 auto}
.nav-toggle{
  display:none;width:44px;height:40px;border:1px solid var(--c-line);
  border-radius:var(--r-input);background:transparent;cursor:pointer;
  align-items:center;justify-content:center;flex-direction:column;gap:5px;
}
.nav-toggle span{display:block;width:18px;height:1.6px;background:var(--c-text);transition:transform .22s ease,opacity .22s ease}
.nav-toggle[aria-expanded="true"] span:nth-child(1){transform:translateY(6.6px) rotate(45deg)}
.nav-toggle[aria-expanded="true"] span:nth-child(2){opacity:0}
.nav-toggle[aria-expanded="true"] span:nth-child(3){transform:translateY(-6.6px) rotate(-45deg)}
@media (max-width:900px){
  .nav-toggle{display:flex}
  .main-nav{
    position:absolute;top:100%;left:0;right:0;
    display:none;flex-direction:column;align-items:flex-start;gap:4px;
    padding:14px 20px 22px;background:var(--c-panel);
    border-bottom:1px solid var(--c-line);box-shadow:var(--shadow);
  }
  .main-nav.is-open{display:flex}
  .main-nav a{width:100%;padding:12px 0;font-size:16px;border-bottom:1px solid var(--c-line)}
  .main-nav a:last-child{border-bottom:none}
  .header-cta{display:none}
}
@media (max-width:520px){
  .logo{font-size:17px}
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;font-size:15px;font-weight:600;line-height:1;
  border-radius:var(--r-pill);cursor:pointer;border:1px solid transparent;
  transition:background .2s ease,color .2s ease,border-color .2s ease,transform .16s ease,box-shadow .2s ease;
  white-space:nowrap;
}
.btn-primary{background:var(--c-primary);color:#08110D}
.btn-primary:hover{background:#2AE27D;transform:translateY(-1px);box-shadow:0 8px 20px rgba(18,214,107,.22)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{background:transparent;color:var(--c-text);border-color:var(--c-line);border-radius:var(--r-input)}
.btn-ghost:hover{background:var(--c-panel);border-color:var(--c-primary);color:var(--c-primary)}
.btn-ghost:active{transform:translateY(1px)}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;transform:none}

/* ---------- badge / tag ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;font-size:13px;font-weight:600;border-radius:var(--r-pill);
  background:rgba(18,214,107,.12);color:var(--c-primary);
}
.tag{
  display:inline-block;padding:3px 10px;font-size:12px;border-radius:6px;
  color:var(--c-text-2);border:1px solid var(--c-line);
}
.tag-accent{color:var(--c-accent);border-color:rgba(232,255,89,.3);background:rgba(232,255,89,.08)}

/* ---------- page hero ---------- */
.page-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--c-line)}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.png");
  background-size:cover;background-position:center;
  opacity:.35;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,17,13,.72) 0%,rgba(8,17,13,.9) 55%,var(--c-bg) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:76px 0 68px}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--c-text-3);margin-bottom:22px}
.breadcrumb a{color:var(--c-text-2)}
.breadcrumb a:hover{color:var(--c-primary)}
.breadcrumb span.sep{color:var(--c-text-3)}
.breadcrumb .current{color:var(--c-text)}
.hero-title{
  font-size:clamp(32px,5vw,56px);font-weight:800;letter-spacing:-.01em;line-height:1.18;
  max-width:16em;
}
.hero-title em{font-style:normal;color:var(--c-primary)}
.hero-lead{
  margin-top:22px;max-width:44em;font-size:17px;color:var(--c-text-2);line-height:1.85;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:34px}
.hero-note{margin-top:20px;font-size:13.5px;color:var(--c-text-3)}
@media (max-width:768px){
  .page-hero-inner{padding:48px 0 46px}
  .hero-actions .btn{flex:1 1 100%}
}

/* ---------- stat strip ---------- */
.stat-strip{
  border-bottom:1px solid var(--c-line);
  background:var(--c-panel);
}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:1px;background:var(--c-line)}
.stat-item{background:var(--c-panel);padding:26px 24px}
.stat-num{
  font-size:clamp(24px,3vw,32px);font-weight:800;color:var(--c-primary);
  font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:-.02em;
}
.stat-label{margin-top:6px;font-size:13.5px;color:var(--c-text-2)}
@media (max-width:900px){.stat-grid{grid-template-columns:repeat(2,1fr)}}
@media (max-width:520px){
  .stat-grid{grid-template-columns:1fr}
  .stat-item{padding:20px}
}

/* ---------- sections ---------- */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{max-width:760px;margin-bottom:52px}
.section-head h2{
  position:relative;padding-left:18px;
  font-size:clamp(26px,3.6vw,40px);font-weight:700;letter-spacing:-.01em;line-height:1.25;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.16em;bottom:.16em;width:3px;border-radius:2px;
  background:var(--c-primary);
}
.section-head p{margin-top:16px;color:var(--c-text-2);font-size:16.5px}
@media (max-width:768px){
  .section{padding:60px 0}
  .section-tight{padding:48px 0}
  .section-head{margin-bottom:34px}
}

/* ---------- zigzag ---------- */
.zig{
  display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
  padding:52px 0;border-bottom:1px solid var(--c-line);
}
.zig:last-of-type{border-bottom:none;padding-bottom:0}
.zig:first-of-type{padding-top:0}
.zig-media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--c-line);box-shadow:var(--shadow);
  transition:border-color .24s ease;
}
.zig-media:hover{border-color:var(--c-primary)}
.zig-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.zig-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(8,17,13,.05),rgba(8,17,13,.42));
}
.zig-index{
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
  font-size:13px;letter-spacing:.14em;color:var(--c-primary);margin-bottom:14px;
}
.zig-body h3{font-size:22px;font-weight:600;line-height:1.4}
.zig-body p{margin-top:14px;color:var(--c-text-2);font-size:16px}
.zig-body ul{margin-top:18px;display:grid;gap:10px}
.zig-body ul li{
  position:relative;padding-left:18px;font-size:15px;color:var(--c-text-2);
}
.zig-body ul li::before{
  content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;
  background:var(--c-primary);border-radius:2px;
}
.zig.reverse .zig-media{order:2}
.zig.reverse .zig-body{order:1}
@media (max-width:900px){
  .zig,.zig.reverse{grid-template-columns:1fr;gap:26px;padding:36px 0}
  .zig.reverse .zig-media{order:1}
  .zig.reverse .zig-body{order:2}
}

/* ---------- key list ---------- */
.key-panel{
  border:1px solid var(--c-line);border-radius:var(--r-card);
  background:var(--c-panel);padding:36px 34px;
}
.key-list{display:grid;grid-template-columns:repeat(2,1fr);gap:18px 34px}
.key-list li{
  position:relative;padding-left:26px;font-size:16px;color:var(--c-text);
}
.key-list li::before{
  content:"";position:absolute;left:0;top:.55em;width:10px;height:10px;
  border-radius:3px;background:rgba(18,214,107,.18);
  border:1px solid var(--c-primary);
}
.key-foot{
  margin-top:28px;padding-top:22px;border-top:1px solid var(--c-line);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
}
.key-foot p{font-size:14px;color:var(--c-text-3)}
@media (max-width:768px){
  .key-panel{padding:24px 20px}
  .key-list{grid-template-columns:1fr;gap:14px}
}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:820px;margin:0 auto}
.faq-item{border-bottom:1px solid var(--c-line)}
.faq-item:first-child{border-top:1px solid var(--c-line)}
.faq-item summary{
  list-style:none;cursor:pointer;display:flex;align-items:flex-start;justify-content:space-between;
  gap:20px;padding:24px 4px;font-size:18px;font-weight:600;color:var(--c-text);
  transition:color .2s ease;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--c-primary)}
.faq-item summary .mark{
  flex:0 0 auto;width:22px;height:22px;position:relative;margin-top:6px;
}
.faq-item summary .mark::before,
.faq-item summary .mark::after{
  content:"";position:absolute;background:var(--c-text-2);transition:transform .22s ease,background .22s ease;
}
.faq-item summary .mark::before{left:0;right:0;top:50%;height:1.6px;transform:translateY(-50%)}
.faq-item summary .mark::after{top:0;bottom:0;left:50%;width:1.6px;transform:translateX(-50%)}
.faq-item[open] summary{color:var(--c-primary)}
.faq-item[open] summary .mark::after{transform:translateX(-50%) scaleY(0)}
.faq-item[open] summary .mark::before{background:var(--c-primary)}
.faq-answer{padding:0 4px 26px;color:var(--c-text-2);font-size:16px;max-width:44em}
@media (max-width:768px){
  .faq-item summary{font-size:16.5px;padding:20px 2px}
}

/* ---------- CTA panel + form ---------- */
.cta-panel{
  position:relative;overflow:hidden;border:1px solid var(--c-line);
  border-radius:var(--r-card);background:var(--c-panel);
  box-shadow:var(--shadow);
  display:grid;grid-template-columns:1.05fr .95fr;gap:0;
}
.cta-panel::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--c-primary);
}
.cta-copy{padding:48px 44px}
.cta-copy h2{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.3}
.cta-copy p{margin-top:14px;color:var(--c-text-2);font-size:16px;max-width:34em}
.cta-points{margin-top:24px;display:grid;gap:10px}
.cta-points li{position:relative;padding-left:20px;font-size:14.5px;color:var(--c-text-2)}
.cta-points li::before{
  content:"";position:absolute;left:0;top:.6em;width:8px;height:8px;border-radius:50%;
  background:var(--c-primary);
}
.cta-form{
  padding:40px 44px;background:rgba(8,17,13,.55);border-left:1px solid var(--c-line);
}
.cta-form h3{font-size:17px;font-weight:600;margin-bottom:20px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:var(--c-text-2);margin-bottom:8px}
.field input,.field select{
  width:100%;padding:12px 14px;background:rgba(8,17,13,.85);
  border:1px solid var(--c-line);border-radius:var(--r-input);
  font-size:15px;color:var(--c-text);transition:border-color .2s ease,box-shadow .2s ease;
}
.field input::placeholder{color:var(--c-text-3)}
.field input:focus,.field select:focus{
  outline:none;border-color:var(--c-primary);
  box-shadow:inset 0 0 0 1px rgba(18,214,107,.35);
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-text-2) 50%),linear-gradient(135deg,var(--c-text-2) 50%,transparent 50%);background-position:calc(100% - 20px) 20px,calc(100% - 15px) 20px;background-size:5px 5px,5px 5px;background-repeat:no-repeat}
.field.has-error input,.field.has-error select{border-color:var(--c-warn)}
.field .err{display:none;margin-top:6px;font-size:13px;color:var(--c-warn)}
.field.has-error .err{display:block}
.form-tip{margin-top:14px;font-size:13px;color:var(--c-text-3)}
.cta-form .btn{width:100%;margin-top:6px}
@media (max-width:900px){
  .cta-panel{grid-template-columns:1fr}
  .cta-copy{padding:32px 24px}
  .cta-form{padding:28px 24px;border-left:none;border-top:1px solid var(--c-line)}
}

/* ---------- floating CTA ---------- */
.float-cta{
  position:fixed;right:32px;bottom:32px;z-index:120;
  display:inline-flex;align-items:center;gap:8px;
  padding:14px 26px;border-radius:var(--r-pill);
  background:var(--c-primary);color:#08110D;font-size:15px;font-weight:700;
  box-shadow:0 10px 28px rgba(0,0,0,.45);
  opacity:0;visibility:hidden;transform:translateY(10px);
  transition:opacity .28s ease,transform .28s ease,visibility .28s ease,background .2s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.float-cta:hover{background:#2AE27D;transform:translateY(-2px)}
@media (max-width:768px){
  .float-cta{
    left:0;right:0;bottom:0;width:100%;justify-content:center;
    border-radius:0;padding:16px 20px;transform:translateY(100%);
  }
  .float-cta.is-visible{transform:translateY(0)}
}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--c-line);background:var(--c-panel);margin-top:0}
.footer-quote{
  padding:30px 0;border-bottom:1px solid var(--c-line);
  font-size:15px;color:var(--c-text-2);letter-spacing:.02em;
}
.footer-quote::before{
  content:"";display:inline-block;width:24px;height:1px;background:var(--c-primary);
  vertical-align:middle;margin-right:12px;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr 1fr;gap:40px;
  padding:56px 0 48px;
}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14.5px;color:var(--c-text-2);max-width:30em}
.footer-col h4{font-size:14px;font-weight:600;color:var(--c-text);margin-bottom:16px;letter-spacing:.04em}
.footer-col ul{display:grid;gap:11px}
.footer-col a,.footer-col span{font-size:14.5px;color:var(--c-text-2)}
.footer-col a:hover{color:var(--c-primary)}
.footer-bottom{
  border-top:1px solid var(--c-line);padding:22px 0 30px;
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;
  font-size:13.5px;color:var(--c-text-3);
}
@media (max-width:1024px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:768px){
  .footer-grid{grid-template-columns:1fr;gap:32px;padding:40px 0 36px}
  .footer-bottom{flex-direction:column;gap:8px}
}

/* roulang page: category2 */
:root{
  --c-primary:#12D66B;
  --c-primary-soft:rgba(18,214,107,.12);
  --c-accent:#E8FF59;
  --c-warn:#FF6A2B;
  --c-bg:#08110D;
  --c-panel:#0F1A15;
  --c-line:#1E2C25;
  --c-text:#E6EFE9;
  --c-text-2:#8FA396;
  --c-text-3:#55665C;
  --r-card:14px;
  --r-input:10px;
  --r-pill:999px;
  --shadow-card:0 8px 24px rgba(0,0,0,.35);
  --font-cn:"HarmonyOS Sans SC","Source Han Sans SC","Noto Sans SC","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:"Inter",ui-monospace,SFMono-Regular,Menlo,Consolas,monospace;
  --header-h:72px;
}
*{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  background-color:var(--c-bg);
  background-image:repeating-linear-gradient(135deg,rgba(255,255,255,.016) 0 1px,transparent 1px 9px);
  color:var(--c-text);
  font-family:var(--font-cn);
  font-size:16px;
  line-height:1.75;
  letter-spacing:.01em;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block;border-radius:var(--r-card);}
a{color:inherit;text-decoration:none;transition:color .2s ease,border-color .2s ease,background-color .2s ease;}
a:hover{color:var(--c-primary);}
h1,h2,h3,h4,p,ul,ol,figure,blockquote{margin:0;}
ul,ol{padding:0;list-style:none;}
button,input,select,textarea{font:inherit;color:inherit;}
button{cursor:pointer;border:none;background:none;}
:focus-visible{outline:2px solid var(--c-primary);outline-offset:2px;border-radius:6px;}
::selection{background:var(--c-primary);color:#04140C;}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 40px;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;letter-spacing:-.01em;}

/* ---------- header ---------- */
.site-header{
  position:sticky;top:0;z-index:50;
  background:rgba(8,17,13,.92);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-bottom:1px solid transparent;
  transition:border-color .25s ease,background-color .25s ease;
}
.site-header.is-scrolled{border-bottom-color:var(--c-line);}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:var(--header-h);}
.logo{display:inline-flex;align-items:center;gap:10px;font-size:18px;font-weight:800;letter-spacing:-.01em;color:var(--c-text);}
.logo::before{content:"";width:8px;height:8px;border-radius:50%;background:var(--c-primary);box-shadow:0 0 0 4px rgba(18,214,107,.14);}
.logo:hover{color:var(--c-text);}
.logo:hover::before{background:var(--c-accent);}
.main-nav{display:flex;align-items:center;gap:6px;}
.main-nav a{position:relative;padding:9px 14px;font-size:15px;color:var(--c-text-2);border-radius:var(--r-input);}
.main-nav a:hover{color:var(--c-text);}
.main-nav a.is-active{color:var(--c-text);}
.main-nav a.is-active::after{content:"";position:absolute;left:14px;right:14px;bottom:1px;height:2px;border-radius:2px;background:var(--c-primary);}
.nav-actions{display:flex;align-items:center;gap:12px;}
.nav-toggle{
  display:none;width:42px;height:42px;border:1px solid var(--c-line);border-radius:var(--r-input);
  color:var(--c-text);align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:16px;height:1.5px;background:currentColor;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{content:"";position:absolute;left:0;width:16px;height:1.5px;background:currentColor;}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}
.nav-toggle:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .2s ease,background-color .2s ease,border-color .2s ease,filter .2s ease,opacity .2s ease;
}
.btn-primary{background:var(--c-primary);color:#04140C;border:1px solid var(--c-primary);}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-1px);color:#04140C;}
.btn-ghost{background:transparent;color:var(--c-text);border:1px solid var(--c-line);border-radius:var(--r-pill);}
.btn-ghost:hover{background:var(--c-panel);border-color:var(--c-primary);color:var(--c-text);transform:translateY(-1px);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn:active{transform:translateY(0);}
.btn[disabled],.btn.is-disabled{opacity:.4;pointer-events:none;transform:none;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  padding:150px 0 96px;
  background-image:linear-gradient(180deg,rgba(8,17,13,.74) 0%,rgba(8,17,13,.9) 62%,rgba(8,17,13,.98) 100%),url('/assets/images/backpic/back-2.png');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--c-line);
  overflow:hidden;
}
.page-hero::after{
  content:"";position:absolute;left:0;right:0;bottom:0;height:1px;
  background:linear-gradient(90deg,transparent,var(--c-primary),transparent);opacity:.4;
}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--c-text-3);margin-bottom:26px;}
.breadcrumb a{color:var(--c-text-3);}
.breadcrumb a:hover{color:var(--c-primary);}
.breadcrumb span.sep{color:var(--c-line);}
.breadcrumb .current{color:var(--c-text-2);}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  padding:6px 14px;border-radius:var(--r-pill);
  background:var(--c-primary-soft);color:var(--c-primary);
  font-size:13px;font-weight:600;letter-spacing:.02em;margin-bottom:22px;
}
.hero-badge i{width:6px;height:6px;border-radius:50%;background:var(--c-primary);display:block;}
.page-hero h1{
  font-size:clamp(32px,5vw,56px);font-weight:800;letter-spacing:-.01em;line-height:1.16;
  max-width:16em;margin-bottom:22px;
}
.page-hero .lede{
  font-size:clamp(17px,2vw,20px);color:var(--c-text-2);max-width:44em;line-height:1.7;margin-bottom:18px;
}
.page-hero .desc{color:var(--c-text-3);font-size:15.5px;max-width:46em;line-height:1.85;margin-bottom:34px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-top:34px;}
.chip{
  display:inline-block;padding:6px 13px;border-radius:var(--r-pill);
  border:1px solid var(--c-line);color:var(--c-text-2);font-size:13px;background:rgba(15,26,21,.6);
}
.chip:hover{border-color:var(--c-primary);color:var(--c-primary);}

/* ---------- sections ---------- */
.section{padding:104px 0;}
.section-alt{background:rgba(15,26,21,.42);border-top:1px solid var(--c-line);border-bottom:1px solid var(--c-line);}
.section-head{max-width:760px;margin-bottom:56px;}
.section-title{display:flex;align-items:center;gap:14px;font-size:clamp(26px,3.6vw,40px);font-weight:700;letter-spacing:-.01em;line-height:1.25;}
.section-title::before{content:"";flex:0 0 3px;width:3px;height:.92em;border-radius:2px;background:var(--c-primary);}
.section-sub{margin-top:16px;color:var(--c-text-2);font-size:16.5px;line-height:1.8;}
.eyebrow{
  display:block;font-family:var(--font-num);font-size:13px;letter-spacing:.16em;
  color:var(--c-text-3);text-transform:uppercase;margin-bottom:14px;
}

/* ---------- stats ---------- */
.stats{display:grid;grid-template-columns:repeat(4,1fr);gap:0;border-top:1px solid var(--c-line);}
.stat{padding:34px 26px 34px 0;border-right:1px solid var(--c-line);}
.stat:last-child{border-right:none;}
.stat-value{font-family:var(--font-num);font-variant-numeric:tabular-nums;font-size:clamp(30px,3.4vw,42px);font-weight:700;color:var(--c-primary);letter-spacing:-.02em;line-height:1;}
.stat-value em{font-style:normal;font-size:15px;color:var(--c-text-2);margin-left:6px;font-weight:500;}
.stat-label{margin-top:12px;color:var(--c-text-2);font-size:14px;line-height:1.6;}

/* ---------- info grid ---------- */
.grid-3{display:grid;grid-template-columns:repeat(3,1fr);gap:22px;}
.card{
  background:var(--c-panel);
  border:1px solid var(--c-line);
  border-radius:var(--r-card);
  padding:26px;
  box-shadow:var(--shadow-card);
  transition:border-color .2s ease,transform .2s ease;
}
.card:hover{border-color:var(--c-primary);transform:translateY(-2px);}
.card-num{font-family:var(--font-num);font-size:13px;color:var(--c-text-3);letter-spacing:.14em;margin-bottom:16px;display:block;}
.card h3{font-size:21px;font-weight:600;margin-bottom:12px;letter-spacing:-.01em;}
.card p{color:var(--c-text-2);font-size:15.5px;line-height:1.78;}
.card-list{margin-top:16px;display:flex;flex-direction:column;gap:9px;}
.card-list li{position:relative;padding-left:18px;color:var(--c-text-2);font-size:14.5px;line-height:1.65;}
.card-list li::before{content:"";position:absolute;left:0;top:.62em;width:6px;height:6px;border-radius:1px;background:var(--c-primary);}

/* ---------- split feature ---------- */
.split{display:grid;grid-template-columns:8fr 4fr;gap:56px;align-items:center;}
.split.reverse{grid-template-columns:4fr 8fr;}
.split-media{position:relative;border-radius:var(--r-card);overflow:hidden;border:1px solid var(--c-line);}
.split-media img{width:100%;height:100%;object-fit:cover;border-radius:0;aspect-ratio:16/10;}
.split-media::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,17,13,0) 45%,rgba(8,17,13,.65) 100%);}
.split-body h3{font-size:clamp(22px,2.4vw,28px);font-weight:600;letter-spacing:-.01em;margin-bottom:16px;}
.split-body p{color:var(--c-text-2);font-size:16px;line-height:1.82;margin-bottom:16px;}
.check-list{display:flex;flex-direction:column;gap:14px;margin-top:24px;}
.check-list li{position:relative;padding-left:30px;color:var(--c-text-2);font-size:15.5px;line-height:1.7;}
.check-list li::before{
  content:"";position:absolute;left:0;top:6px;width:14px;height:14px;border-radius:4px;
  background:var(--c-primary-soft);border:1px solid rgba(18,214,107,.45);
}
.check-list li::after{
  content:"";position:absolute;left:4px;top:10px;width:5px;height:8px;
  border-right:1.6px solid var(--c-primary);border-bottom:1.6px solid var(--c-primary);
  transform:rotate(42deg);
}
.check-list li strong{color:var(--c-text);font-weight:600;}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:22px;counter-reset:step;}
.step{
  position:relative;padding:28px 22px 26px;background:var(--c-panel);
  border:1px solid var(--c-line);border-radius:var(--r-card);box-shadow:var(--shadow-card);
  transition:border-color .2s ease,transform .2s ease;
}
.step:hover{border-color:var(--c-primary);transform:translateY(-2px);}
.step-index{font-family:var(--font-num);font-size:13px;color:var(--c-primary);letter-spacing:.12em;display:block;margin-bottom:18px;}
.step h3{font-size:18px;font-weight:600;margin-bottom:10px;}
.step p{color:var(--c-text-2);font-size:14.5px;line-height:1.72;}
.step-rail{height:1px;background:linear-gradient(90deg,var(--c-primary),transparent);margin-top:22px;opacity:.6;}

/* ---------- quote / evidence ---------- */
.quotes{display:grid;grid-template-columns:repeat(2,1fr);gap:22px;}
.quote{
  background:var(--c-panel);border:1px solid var(--c-line);border-left:3px solid var(--c-primary);
  border-radius:var(--r-card);padding:26px 28px;box-shadow:var(--shadow-card);
}
.quote p{color:var(--c-text);font-size:16px;line-height:1.8;}
.quote footer{margin-top:16px;color:var(--c-text-3);font-size:13.5px;}
.quote:nth-child(2){transform:translateY(28px);}

/* ---------- FAQ ---------- */
.faq-list{max-width:820px;margin:0 auto;}
.faq-item{border-bottom:1px solid var(--c-line);}
.faq-item:first-child{border-top:1px solid var(--c-line);}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:24px 4px;font-size:17px;font-weight:600;color:var(--c-text);
  cursor:pointer;list-style:none;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:"+";font-family:var(--font-num);font-size:22px;line-height:1;
  color:var(--c-text-3);transition:color .2s ease,transform .2s ease;
}
.faq-item[open] summary{color:var(--c-primary);}
.faq-item[open] summary::after{content:"−";color:var(--c-primary);}
.faq-item p{padding:0 4px 26px;color:var(--c-text-2);font-size:15.5px;line-height:1.85;max-width:70ch;}

/* ---------- CTA ---------- */
.cta-band{
  border:1px solid var(--c-line);border-radius:var(--r-card);
  background:linear-gradient(120deg,rgba(18,214,107,.1) 0%,rgba(15,26,21,.9) 46%,rgba(15,26,21,.96) 100%);
  padding:52px;display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:start;
  box-shadow:var(--shadow-card);
}
.cta-band h2{font-size:clamp(24px,3vw,34px);font-weight:700;letter-spacing:-.01em;margin-bottom:14px;}
.cta-band p{color:var(--c-text-2);font-size:16px;line-height:1.8;}
.cta-note{margin-top:20px;font-size:14px;color:var(--c-accent);}
.form-grid{display:grid;gap:16px;}
.field{display:flex;flex-direction:column;gap:8px;}
.field label{font-size:14px;color:var(--c-text-2);}
.field input,.field select{
  width:100%;padding:13px 14px;border-radius:var(--r-input);
  background:rgba(8,17,13,.85);border:1px solid var(--c-line);color:var(--c-text);
  transition:border-color .2s ease,box-shadow .2s ease;
}
.field select{appearance:none;background-image:linear-gradient(45deg,transparent 50%,var(--c-text-2) 50%),linear-gradient(135deg,var(--c-text-2) 50%,transparent 50%);background-position:calc(100% - 20px) 50%,calc(100% - 14px) 50%;background-size:6px 6px,6px 6px;background-repeat:no-repeat;}
.field input::placeholder{color:var(--c-text-3);}
.field input:focus,.field select:focus{outline:none;border-color:var(--c-primary);box-shadow:inset 0 0 0 1px rgba(18,214,107,.28);}
.field.has-error input,.field.has-error select{border-color:var(--c-warn);}
.field-error{font-size:13px;color:var(--c-warn);display:none;}
.field.has-error .field-error{display:block;}
.form-tip{font-size:13px;color:var(--c-text-3);line-height:1.6;}
.form-success{
  display:none;margin-top:4px;padding:12px 14px;border-radius:var(--r-input);
  background:var(--c-primary-soft);color:var(--c-primary);font-size:14px;
}
.form-success.is-visible{display:block;}

/* ---------- footer ---------- */
.site-footer{border-top:1px solid var(--c-line);background:rgba(15,26,21,.55);padding:72px 0 0;}
.footer-grid{display:grid;grid-template-columns:1.6fr 1fr 1fr 1fr;gap:40px;}
.footer-brand .logo{font-size:19px;margin-bottom:18px;}
.footer-brand p{color:var(--c-text-2);font-size:14.5px;line-height:1.8;max-width:34ch;}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:18px;color:var(--c-text);}
.footer-col ul{display:flex;flex-direction:column;gap:12px;}
.footer-col a,.footer-col li{color:var(--c-text-2);font-size:14.5px;}
.footer-col a:hover{color:var(--c-primary);}
.footer-bottom{
  margin-top:56px;border-top:1px solid var(--c-line);
  padding:24px 0;display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  color:var(--c-text-3);font-size:13.5px;
}
.footer-bottom .num{color:var(--c-text-3);}

/* ---------- floating CTA ---------- */
.float-cta{
  position:fixed;right:28px;bottom:28px;z-index:60;
  opacity:0;visibility:hidden;transform:translateY(12px);
  transition:opacity .3s ease,transform .3s ease,visibility .3s ease;
}
.float-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0);}
.float-cta .btn{box-shadow:0 10px 28px rgba(0,0,0,.5);}

/* ---------- responsive ---------- */
@media (max-width:1024px){
  .container{padding:0 32px;}
  .section{padding:84px 0;}
  .split,.split.reverse{grid-template-columns:1fr;gap:34px;}
  .split.reverse .split-media{order:-1;}
  .grid-3{grid-template-columns:repeat(2,1fr);}
  .steps{grid-template-columns:repeat(2,1fr);}
  .stats{grid-template-columns:repeat(2,1fr);}
  .stat:nth-child(2){border-right:none;}
  .stat:nth-child(3),.stat:nth-child(4){border-top:1px solid var(--c-line);}
  .cta-band{grid-template-columns:1fr;padding:40px;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px;}
}
@media (max-width:900px){
  .nav-toggle{display:inline-flex;}
  .main-nav{
    position:absolute;left:0;right:0;top:var(--header-h);
    flex-direction:column;align-items:stretch;gap:0;
    background:var(--c-panel);border-bottom:1px solid var(--c-line);
    padding:8px 20px 18px;display:none;
  }
  .main-nav.is-open{display:flex;}
  .main-nav a{padding:14px 4px;border-bottom:1px solid var(--c-line);font-size:15.5px;}
  .main-nav a.is-active::after{left:4px;right:auto;width:24px;bottom:10px;}
  .nav-actions .btn{display:none;}
  .page-hero{padding:110px 0 72px;}
}
@media (max-width:768px){
  .container{padding:0 20px;}
  .section{padding:64px 0;}
  .section-head{margin-bottom:36px;}
  .grid-3,.steps,.quotes{grid-template-columns:1fr;gap:18px;}
  .stats{grid-template-columns:1fr;}
  .stat{border-right:none;padding:24px 0;border-top:1px solid var(--c-line);}
  .stat:first-child{border-top:none;}
  .quote:nth-child(2){transform:none;}
  .cta-band{padding:30px 22px;}
  .footer-grid{grid-template-columns:1fr;gap:32px;}
  .float-cta{left:0;right:0;bottom:0;}
  .float-cta .btn{width:100%;border-radius:0;padding:16px;font-size:16px;}
  .hero-actions .btn{width:100%;}
  .faq-item summary{font-size:16px;padding:20px 2px;}
  .site-footer{padding-top:52px;}
}
@media (max-width:480px){
  .page-hero h1{font-size:30px;}
  .card{padding:22px;}
  .split-media img{aspect-ratio:4/3;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}