/* roulang page: index */
:root{
  --bg:#070C1A;
  --bg-2:#0A1022;
  --panel:#0D1428;
  --panel-soft:rgba(13,20,40,.72);
  --primary:#2E6BFF;
  --primary-deep:#1B4FD8;
  --cyan:#22D3EE;
  --amber:#FF8A3D;
  --success:#2FD98B;
  --danger:#FF5D5D;
  --text:#E8EEF9;
  --text-2:#94A3BE;
  --text-3:#6B7A96;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --r-pill:999px;
  --shadow-card:0 12px 40px rgba(0,0,0,.45);
  --shadow-glow:0 0 24px rgba(46,107,255,.55);
  --max:1240px;
  --gap:24px;
  --sec:88px;
  --ease:220ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.033) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.033) 1px,transparent 1px);
  background-size:64px 64px;
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border-radius:var(--r-img)}
a{color:inherit;text-decoration:none;transition:color var(--ease),transform var(--ease)}
a:hover{color:var(--cyan)}
button,input,textarea{font:inherit;color:inherit}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
ul,ol{margin:0;padding:0;list-style:none}
::selection{background:rgba(46,107,255,.4);color:#fff}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}

.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 32px;position:relative;z-index:2}
.sec{padding:var(--sec) 0;position:relative;z-index:2}
.sec--tight{padding:56px 0}
.sec-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap}
.sec-head__title{font-size:clamp(22px,2.4vw,30px);}
.sec-head__desc{color:var(--text-2);font-size:14.5px;margin-top:10px;max-width:640px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.14em;color:var(--cyan);
  text-transform:uppercase;font-weight:600;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:linear-gradient(90deg,var(--cyan),transparent)}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:44px;padding:11px 24px;border:1px solid transparent;
  border-radius:var(--r-pill);font-size:14.5px;font-weight:600;
  cursor:pointer;white-space:nowrap;transition:transform var(--ease),box-shadow var(--ease),filter var(--ease),background var(--ease),border-color var(--ease);
}
.btn--sm{padding:8px 18px;min-height:38px;font-size:13.5px}
.btn--lg{padding:14px 30px;min-height:52px;font-size:15.5px}
.btn--primary{
  background:linear-gradient(120deg,var(--primary),var(--cyan));
  color:#04122B;font-weight:700;box-shadow:var(--shadow-glow);
}
.btn--primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 34px rgba(34,211,238,.55);color:#04122B}
.btn--primary:active{transform:translateY(1px)}
.btn--ghost{background:rgba(255,255,255,.04);border-color:var(--line);color:var(--text);backdrop-filter:blur(8px)}
.btn--ghost:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.6);color:var(--cyan)}
.btn--outline{background:transparent;border-color:rgba(46,107,255,.55);color:#BFD4FF}
.btn--outline:hover{background:rgba(46,107,255,.14);color:#fff;transform:translateY(-2px)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--text-2);font-size:14px;font-weight:600}
.link-arrow span{transition:transform var(--ease)}
.link-arrow:hover{color:var(--cyan)}
.link-arrow:hover span{transform:translateX(4px)}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:var(--r-pill);font-size:12px;font-weight:600;
  border:1px solid var(--line);background:rgba(255,255,255,.05);color:var(--text-2);
  line-height:1.6;
}
.badge--cat{border-color:rgba(46,107,255,.5);background:rgba(46,107,255,.16);color:#A9C3FF}
.badge--amber{border-color:rgba(255,138,61,.45);background:rgba(255,138,61,.14);color:#FFBE8E}
.badge--ok{border-color:rgba(47,217,139,.4);background:rgba(47,217,139,.12);color:#8DEDC0}

/* ---------- floating capsule nav ---------- */
.site-header{
  position:fixed;top:16px;left:0;right:0;z-index:60;
  padding:0 24px;transition:top var(--ease);
}
.nav{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;gap:20px;
  height:68px;padding:0 14px 0 22px;
  border-radius:var(--r-pill);
  background:rgba(13,20,40,.55);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:0 8px 30px rgba(0,0,0,.35);
  transition:height var(--ease),background var(--ease),box-shadow var(--ease);
}
.site-header.is-scrolled .nav{
  height:56px;background:rgba(9,14,30,.9);
  box-shadow:0 14px 40px rgba(0,0,0,.6);
}
.logo{display:flex;flex-direction:column;justify-content:center;line-height:1.15;flex-shrink:0}
.logo__main{font-size:15.5px;font-weight:800;letter-spacing:-.01em;color:#fff}
.logo__sub{font-size:10.5px;letter-spacing:.16em;color:var(--text-3);font-weight:600}
.logo:hover .logo__main{color:var(--cyan)}
.nav__menu{display:flex;align-items:center;gap:6px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.nav__menu::-webkit-scrollbar{display:none}
.nav__link{
  position:relative;display:inline-flex;align-items:center;height:40px;padding:0 14px;
  font-size:14px;color:var(--text-2);border-radius:var(--r-pill);white-space:nowrap;
  transition:color var(--ease),background var(--ease);
}
.nav__link::after{
  content:"";position:absolute;left:14px;right:14px;bottom:6px;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--cyan));
  border-radius:2px;transform:scaleX(0);transform-origin:left;transition:transform var(--ease);
}
.nav__link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav__link:hover::after,.nav__link.is-active::after{transform:scaleX(1)}
.nav__link.is-active{color:#fff;font-weight:600}
.nav__right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav__cta{min-height:40px;padding:8px 20px}
.nav__toggle{
  display:none;width:44px;height:44px;border-radius:var(--r-pill);
  border:1px solid var(--line);background:rgba(255,255,255,.05);
  align-items:center;justify-content:center;cursor:pointer;
}
.nav__toggle span{display:block;width:18px;height:2px;background:var(--text);border-radius:2px;position:relative}
.nav__toggle span::before,.nav__toggle span::after{
  content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;
}
.nav__toggle span::before{top:-6px}
.nav__toggle span::after{top:6px}
.drawer{
  position:fixed;inset:0;z-index:80;background:#080E1E;
  transform:translateX(100%);transition:transform 260ms ease-out;
  display:flex;flex-direction:column;padding:22px;
}
.drawer.is-open{transform:translateX(0)}
.drawer__top{display:flex;align-items:center;justify-content:space-between;margin-bottom:18px}
.drawer__close{
  width:44px;height:44px;border-radius:var(--r-pill);border:1px solid var(--line);
  background:rgba(255,255,255,.05);cursor:pointer;font-size:18px;line-height:1;
}
.drawer__link{
  display:flex;align-items:center;height:52px;padding:0 16px;font-size:15.5px;
  border-bottom:1px solid var(--line-soft);color:var(--text-2);
}
.drawer__link.is-active{color:var(--cyan);font-weight:600}
.drawer .btn{margin-top:22px;width:100%}

/* ---------- hero ---------- */
.hero{position:relative;padding:150px 0 84px;overflow:hidden}
.hero::before{
  content:"";position:absolute;top:-160px;left:-10%;width:120%;height:520px;
  background:linear-gradient(105deg,rgba(46,107,255,.34),rgba(34,211,238,.14) 42%,transparent 74%);
  clip-path:polygon(0 0,100% 0,72% 100%,0 78%);
  filter:blur(6px);z-index:0;
}
.hero__inner{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center}
.hero__title{font-size:clamp(30px,4.2vw,50px);line-height:1.22;font-weight:900}
.hero__title em{font-style:normal;background:linear-gradient(100deg,var(--cyan),var(--primary));-webkit-background-clip:text;background-clip:text;color:transparent}
.hero__sub{margin-top:20px;color:var(--text-2);font-size:16.5px;max-width:560px}
.hero__actions{display:flex;gap:14px;margin-top:32px;flex-wrap:wrap}
.stats{
  display:flex;align-items:stretch;margin-top:40px;
  border-top:1px solid var(--line);padding-top:24px;gap:0;
}
.stats li{flex:1;padding:0 20px;border-left:1px solid var(--line)}
.stats li:first-child{padding-left:0;border-left:0}
.stats strong{display:block;font-size:22px;font-weight:800;font-variant-numeric:tabular-nums;letter-spacing:-.01em}
.stats span{display:block;font-size:12.5px;color:var(--text-3);margin-top:4px}

.hero__card{position:relative}
.promo{
  position:relative;border-radius:22px;overflow:hidden;
  background:var(--panel-soft);border:1px solid var(--line);
  backdrop-filter:blur(14px);box-shadow:var(--shadow-card);
  transition:transform var(--ease),border-color var(--ease);
}
.promo:hover{transform:translateY(-3px);border-color:rgba(34,211,238,.4)}
.promo__media{position:relative;aspect-ratio:16/10;overflow:hidden}
.promo__media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 340ms ease-out}
.promo:hover .promo__media img{transform:scale(1.03)}
.promo__tag{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:5px 13px;border-radius:var(--r-pill);font-size:12px;font-weight:700;
  background:rgba(255,138,61,.92);color:#2A1200;
}
.promo__body{padding:22px 24px 24px}
.promo__title{font-size:20px}
.promo__desc{color:var(--text-2);font-size:14.5px;margin-top:10px}
.promo__foot{display:flex;align-items:center;justify-content:space-between;gap:14px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line-soft)}
.status-card{
  position:absolute;right:16px;bottom:16px;
  display:flex;align-items:center;gap:10px;
  padding:10px 14px;border-radius:14px;
  background:rgba(7,12,26,.78);border:1px solid var(--line);
  backdrop-filter:blur(10px);max-width:78%;
}
.status-card strong{display:block;font-size:13px;font-weight:700}
.status-card span{display:block;font-size:11.5px;color:var(--text-3);font-variant-numeric:tabular-nums}
.dot{width:8px;height:8px;border-radius:50%;background:var(--success);box-shadow:0 0 10px var(--success);flex-shrink:0}

/* ---------- cards grid ---------- */
.grid{display:grid;grid-template-columns:repeat(3,1fr);gap:var(--gap)}
.card{
  display:flex;flex-direction:column;border-radius:var(--r-card);
  background:rgba(13,20,40,.82);border:1px solid var(--line);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform var(--ease),border-color var(--ease),box-shadow var(--ease);
}
.card:hover{transform:translateY(-3px);border-color:rgba(46,107,255,.55);box-shadow:0 18px 46px rgba(0,0,0,.55)}
.card__media{position:relative;aspect-ratio:16/10;overflow:hidden;background:rgba(46,107,255,.08)}
.card__media img{width:100%;height:100%;object-fit:cover;border-radius:0;transition:transform 340ms ease-out}
.card:hover .card__media img{transform:scale(1.03)}
.card__flag{
  position:absolute;top:12px;left:12px;z-index:2;
  padding:4px 11px;border-radius:var(--r-pill);font-size:11.5px;font-weight:700;
  background:rgba(46,107,255,.9);color:#fff;border:1px solid rgba(255,255,255,.18);
}
.card__flag--amber{background:rgba(255,138,61,.92);color:#2A1200}
.card__body{padding:20px 22px;display:flex;flex-direction:column;flex:1}
.card__title{font-size:17px;font-weight:700}
.card__desc{color:var(--text-2);font-size:14px;margin-top:10px;line-height:1.8}
.tags{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px}
.card__foot{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding:16px 22px;border-top:1px solid var(--line-soft);
  color:var(--text-3);font-size:13px;
}
.card__foot strong{color:var(--amber);font-size:14px;font-weight:700}
.card--wide{grid-column:span 2;flex-direction:row}
.card--wide .card__media{aspect-ratio:auto;width:46%;flex-shrink:0}
.card--wide .card__body{padding:26px 26px 0}
.card--wide .card__foot{margin-top:auto;padding:16px 26px;width:100%}
.card--wide .card__wrap{display:flex;flex-direction:column;flex:1}

/* ---------- reviews carousel ---------- */
.reviews{position:relative}
.reviews__track{
  display:flex;gap:20px;overflow-x:auto;scroll-snap-type:x mandatory;
  padding:4px 4px 18px;scrollbar-width:none;
}
.reviews__track::-webkit-scrollbar{display:none}
.review{
  flex:0 0 calc((100% - 40px)/3);scroll-snap-align:start;
  border-radius:var(--r-card);background:rgba(13,20,40,.82);
  border:1px solid var(--line);padding:22px;box-shadow:var(--shadow-card);
  transition:border-color var(--ease),transform var(--ease);
}
.review:hover{border-color:rgba(34,211,238,.4);transform:translateY(-3px)}
.review__top{display:flex;align-items:center;gap:12px}
.avatar{
  width:44px;height:44px;border-radius:50%;flex-shrink:0;
  background:linear-gradient(135deg,var(--primary),var(--cyan));
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;color:#04122B;
}
.review__name{font-size:14.5px;font-weight:700}
.review__tag{font-size:12px;color:var(--text-3)}
.stars{margin-left:auto;color:var(--amber);font-size:13px;letter-spacing:2px;font-variant-numeric:tabular-nums}
.review__text{color:var(--text-2);font-size:14px;margin-top:16px;line-height:1.85}
.reviews__ctrl{display:flex;align-items:center;gap:14px;margin-top:6px}
.ctrl-btn{
  width:44px;height:44px;border-radius:50%;border:1px solid var(--line);
  background:rgba(255,255,255,.05);color:var(--text);cursor:pointer;font-size:16px;
  display:flex;align-items:center;justify-content:center;
  transition:background var(--ease),border-color var(--ease),transform var(--ease);
}
.ctrl-btn:hover{background:rgba(46,107,255,.2);border-color:rgba(46,107,255,.6);transform:translateY(-2px)}
.dots{display:flex;gap:8px;margin-left:auto}
.dot-btn{
  width:9px;height:9px;border-radius:50%;border:0;padding:0;cursor:pointer;
  background:rgba(255,255,255,.18);transition:background var(--ease),width var(--ease);
}
.dot-btn.is-active{background:var(--cyan);width:24px;border-radius:var(--r-pill)}

/* ---------- assurance strip ---------- */
.assure{
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
  background:rgba(10,16,34,.6);
}
.assure__inner{display:grid;grid-template-columns:repeat(4,1fr)}
.assure__item{padding:30px 26px;border-left:1px solid var(--line);display:flex;gap:14px;align-items:flex-start}
.assure__item:first-child{border-left:0;padding-left:0}
.assure__icon{
  width:38px;height:38px;flex-shrink:0;border-radius:12px;
  display:flex;align-items:center;justify-content:center;font-size:16px;
  background:rgba(46,107,255,.16);border:1px solid rgba(46,107,255,.4);color:var(--cyan);
}
.assure__item h3{font-size:15px;font-weight:700}
.assure__item p{color:var(--text-3);font-size:13px;margin-top:6px;line-height:1.7}

/* ---------- news (cms) ---------- */
.news-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.news-card{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  background:rgba(13,20,40,.82);border:1px solid var(--line);
  box-shadow:var(--shadow-card);transition:transform var(--ease),border-color var(--ease);
}
.news-card:hover{transform:translateY(-3px);border-color:rgba(46,107,255,.55)}
.news-card__link{display:flex;flex-direction:column;height:100%;padding:22px}
.news-card::before{
  content:"";position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--primary),var(--cyan));opacity:.85;
}
.news-card__title{font-size:16px;font-weight:700;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-card__desc{
  color:var(--text-2);font-size:13.5px;margin-top:12px;line-height:1.8;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-card__meta{display:flex;align-items:center;gap:10px;margin-top:auto;padding-top:18px;flex-wrap:wrap}
.news-card__meta time{font-size:12.5px;color:var(--text-3);font-variant-numeric:tabular-nums}
.empty-state{
  grid-column:1/-1;text-align:center;padding:56px 24px;
  border:1px dashed var(--line);border-radius:var(--r-card);
  background:rgba(13,20,40,.5);
}
.empty-state__icon{
  width:52px;height:52px;margin:0 auto 16px;border-radius:50%;
  display:flex;align-items:center;justify-content:center;font-size:20px;
  border:1px solid var(--line);color:var(--text-3);background:rgba(255,255,255,.04);
}
.empty-state p{color:var(--text-2);font-size:14.5px}
.empty-state .btn{margin-top:20px}

/* ---------- big cta ---------- */
.cta-band{position:relative;overflow:hidden;padding:0}
.cta-band__inner{
  position:relative;border-radius:26px;overflow:hidden;
  background:linear-gradient(120deg,#0B1836,#101F44 55%,#0A1330);
  border:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:36px;
  padding:52px 56px;box-shadow:var(--shadow-card);
}
.cta-band__inner::before{
  content:"";position:absolute;top:-70%;right:-6%;width:60%;height:240%;
  background:linear-gradient(105deg,rgba(46,107,255,.55),rgba(34,211,238,.22) 55%,transparent);
  transform:rotate(18deg);filter:blur(4px);
}
.cta-band__inner > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(22px,2.6vw,32px)}
.cta-band p{color:var(--text-2);font-size:14.5px;margin-top:12px;max-width:520px}
.cta-band__actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap}

/* ---------- faq ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:0 40px}
.faq-item{border-bottom:1px solid var(--line)}
.faq-item__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:22px 0;background:none;border:0;cursor:pointer;text-align:left;
  font-size:15.5px;font-weight:600;color:var(--text);min-height:44px;
  transition:color var(--ease);
}
.faq-item__q:hover{color:var(--cyan)}
.faq-item__icon{
  position:relative;width:20px;height:20px;flex-shrink:0;
  transition:transform var(--ease);
}
.faq-item__icon::before,.faq-item__icon::after{
  content:"";position:absolute;top:50%;left:50%;background:var(--cyan);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq-item__icon::before{width:14px;height:2px}
.faq-item__icon::after{width:2px;height:14px;transition:opacity var(--ease)}
.faq-item.is-open .faq-item__icon{transform:rotate(180deg)}
.faq-item.is-open .faq-item__icon::after{opacity:0}
.faq-item__a{max-height:0;overflow:hidden;transition:max-height 300ms ease-out}
.faq-item__a p{color:var(--text-2);font-size:14.5px;line-height:1.85;padding:0 0 22px}

/* ---------- contact ---------- */
.contact-wrap{display:grid;grid-template-columns:1fr 420px;gap:36px;align-items:start}
.field{margin-bottom:16px}
.field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:8px}
.field input,.field textarea{
  width:100%;background:rgba(7,12,26,.85);border:1px solid var(--line);
  border-radius:var(--r-input);padding:12px 15px;font-size:14.5px;min-height:48px;
  transition:border-color var(--ease),box-shadow var(--ease);
}
.field textarea{min-height:110px;resize:vertical;line-height:1.75}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:rgba(34,211,238,.75);box-shadow:0 0 0 3px rgba(34,211,238,.16);
}
.field.is-error input,.field.is-error textarea{border-color:var(--danger);box-shadow:0 0 0 3px rgba(255,93,93,.14)}
.field.is-ok input,.field.is-ok textarea{border-color:rgba(47,217,139,.7)}
.field__msg{display:none;font-size:12.5px;margin-top:7px;color:var(--danger)}
.field.is-error .field__msg{display:block}
.form-note{font-size:12.5px;color:var(--text-3);margin-top:14px}
.toast{
  display:none;margin-top:16px;padding:12px 16px;border-radius:var(--r-input);font-size:13.5px;
  border:1px solid rgba(47,217,139,.45);background:rgba(47,217,139,.12);color:#9CF0CB;
}
.toast.is-visible{display:block}

/* ---------- footer ---------- */
.site-footer{position:relative;z-index:2;margin-top:40px;border-top:1px solid var(--line);background:rgba(7,12,26,.9)}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;padding:64px 0 44px}
.footer-brand__name{font-size:16px;font-weight:800}
.footer-brand__sub{font-size:11px;letter-spacing:.16em;color:var(--text-3);font-weight:600;margin-top:4px}
.footer-brand p{color:var(--text-3);font-size:13.5px;margin-top:16px;line-height:1.85;max-width:320px}
.social{display:flex;gap:10px;margin-top:18px}
.social a{
  width:38px;height:38px;border-radius:12px;border:1px solid var(--line);
  display:flex;align-items:center;justify-content:center;color:var(--text-2);font-size:13px;
  background:rgba(255,255,255,.04);transition:all var(--ease);
}
.social a:hover{border-color:rgba(34,211,238,.6);color:var(--cyan);transform:translateY(-2px)}
.site-footer h3{font-size:14px;font-weight:700;margin-bottom:18px;letter-spacing:.02em}
.footer-list li{margin-bottom:11px}
.footer-list a{color:var(--text-2);font-size:13.5px;display:inline-block}
.footer-list a:hover{color:var(--cyan);transform:translateX(3px)}
.footer-contact li{color:var(--text-2);font-size:13.5px;margin-bottom:12px;line-height:1.7}
.footer-contact strong{color:var(--text);font-weight:600}
.footer-bottom{
  border-top:1px solid var(--line-soft);padding:20px 0;
  display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap;
}
.footer-bottom p{color:var(--text-3);font-size:12.5px}
.to-top{
  display:inline-flex;align-items:center;gap:8px;min-height:44px;padding:8px 18px;
  border:1px solid var(--line);border-radius:var(--r-pill);background:rgba(255,255,255,.04);
  color:var(--text-2);font-size:13px;cursor:pointer;transition:all var(--ease);
}
.to-top:hover{border-color:rgba(34,211,238,.6);color:var(--cyan)}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .grid{grid-template-columns:repeat(2,1fr)}
  .card--wide{grid-column:span 2;flex-direction:row}
  .news-grid{grid-template-columns:repeat(2,1fr)}
  .review{flex:0 0 calc((100% - 20px)/2)}
}
@media (max-width:1023px){
  .container{padding:0 24px}
  .site-header{padding:0 16px;top:12px}
  .nav__menu{display:none}
  .nav__right .btn{display:none}
  .nav__toggle{display:flex}
  .hero{padding:126px 0 64px}
  .hero__inner{grid-template-columns:1fr;gap:40px}
  .hero__card{order:2}
  .stats{overflow-x:auto}
  .assure__inner{grid-template-columns:repeat(2,1fr)}
  .assure__item:nth-child(3){border-left:0;padding-left:0}
  .assure__item{border-top:1px solid var(--line)}
  .assure__item:nth-child(1),.assure__item:nth-child(2){border-top:0}
  .cta-band__inner{flex-direction:column;align-items:flex-start;padding:40px 32px}
  .faq-grid{grid-template-columns:1fr}
  .contact-wrap{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;padding:48px 0 32px}
  .sec{--sec:64px}
}
@media (max-width:767px){
  :root{--sec:56px}
  .container{padding:0 20px}
  .hero{padding:112px 0 48px}
  .hero__title{font-size:30px}
  .hero__actions .btn{flex:1}
  .stats li{padding:0 14px}
  .stats strong{font-size:19px}
  .grid{grid-template-columns:1fr}
  .card--wide{grid-column:span 1;flex-direction:column}
  .card--wide .card__media{width:100%;aspect-ratio:16/10}
  .news-grid{grid-template-columns:1fr}
  .review{flex:0 0 84%}
  .assure__inner{grid-template-columns:1fr}
  .assure__item{border-left:0;padding-left:0;padding-right:0}
  .assure__item:nth-child(2){border-top:1px solid var(--line)}
  .cta-band__inner{padding:32px 24px;border-radius:20px}
  .cta-band__actions{width:100%}
  .cta-band__actions .btn{width:100%}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .status-card{position:static;max-width:100%;margin:0 24px 24px;border-radius:14px}
  .promo__media{border-radius:0}
}
@media (max-width:479px){
  .hero__title{font-size:26px}
  .sec-head__title{font-size:21px}
  .review{flex:0 0 92%}
  .stats{gap:0}
  .stats li{padding:0 10px}
}

/* roulang page: article */
:root{
  --bg:#070C1A;
  --panel:#0D1428;
  --panel-2:#111A33;
  --primary:#2E6BFF;
  --cyan:#22D3EE;
  --amber:#FF8A3D;
  --success:#2FD98B;
  --danger:#FF5D5D;
  --text:#E8EEF9;
  --text-2:#94A3BE;
  --text-3:#6B7A96;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --radius-card:18px;
  --radius-img:14px;
  --radius-btn:999px;
  --shadow-card:0 12px 40px rgba(0,0,0,.45);
  --shadow-glow:0 0 24px rgba(46,107,255,.55);
  --container:1240px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  overflow-x:hidden;
  font-variant-numeric:tabular-nums;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(255,255,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.035) 1px,transparent 1px);
  background-size:56px 56px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  top:0;left:0;right:0;
  height:520px;
  background:linear-gradient(115deg,rgba(46,107,255,.16),rgba(34,211,238,.06) 45%,transparent 72%);
  clip-path:polygon(0 0,100% 0,100% 58%,0 100%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;height:auto}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{list-style:none;margin:0;padding:0}
h1,h2,h3,h4,p{margin:0}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:4px}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;
  top:16px;left:0;right:0;
  z-index:100;
  padding:0 16px;
  transition:top .22s var(--ease);
}
.nav{
  max-width:1200px;
  margin:0 auto;
  height:68px;
  display:flex;
  align-items:center;
  gap:18px;
  padding:0 14px 0 22px;
  border-radius:var(--radius-btn);
  background:rgba(13,20,40,.55);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow-card);
  transition:height .22s var(--ease),background .22s var(--ease),box-shadow .22s var(--ease);
}
.site-header.is-scrolled .nav{
  height:56px;
  background:rgba(8,13,28,.88);
  box-shadow:0 16px 44px rgba(0,0,0,.6);
}
.logo{display:flex;flex-direction:column;line-height:1.15;flex:0 0 auto;padding-right:6px}
.logo__main{
  font-size:16px;
  font-weight:800;
  letter-spacing:-.02em;
  background:linear-gradient(92deg,#FFFFFF,#B9D3FF 55%,#8FF0FF);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.logo__sub{font-size:11px;color:var(--text-3);letter-spacing:.06em}
.nav__menu{
  display:flex;
  align-items:center;
  gap:4px;
  margin-left:8px;
  flex:1 1 auto;
  min-width:0;
  overflow-x:auto;
  scrollbar-width:none;
}
.nav__menu::-webkit-scrollbar{display:none}
.nav__link{
  position:relative;
  flex:0 0 auto;
  padding:10px 14px;
  font-size:14.5px;
  color:var(--text-2);
  border-radius:var(--radius-btn);
  white-space:nowrap;
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav__link::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:4px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--cyan));
  transform:scaleX(0);
  transform-origin:center;
  transition:transform .22s var(--ease);
}
.nav__link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav__link:hover::after,.nav__link.is-active::after{transform:scaleX(1)}
.nav__link.is-active{color:#fff;font-weight:600}
.nav__right{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav__toggle{
  display:none;
  position:relative;
  width:44px;height:44px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  transition:border-color .2s var(--ease),background .2s var(--ease);
}
.nav__toggle span,.nav__toggle::before,.nav__toggle::after{
  content:"";
  position:absolute;
  left:13px;right:13px;
  height:2px;
  border-radius:2px;
  background:var(--text);
  transition:.2s var(--ease);
}
.nav__toggle span{top:21px}
.nav__toggle::before{top:15px}
.nav__toggle::after{bottom:15px}
.nav__toggle:hover{border-color:var(--line-strong);background:rgba(255,255,255,.05)}
.nav-drawer{
  position:fixed;
  inset:0;
  z-index:400;
  background:#0A1densities;
  background:#0A1024;
  padding:88px 22px 32px;
  display:none;
  flex-direction:column;
  gap:6px;
}
.nav-drawer.is-open{display:flex}
.nav-drawer__close{
  position:absolute;
  top:20px;right:20px;
  width:44px;height:44px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  font-size:18px;
  color:var(--text-2);
}
.nav-drawer__close:hover{color:#fff;border-color:var(--line-strong)}
.nav-drawer a.nav-drawer__link{
  min-height:52px;
  display:flex;
  align-items:center;
  padding:0 16px;
  font-size:16px;
  color:var(--text);
  border-radius:14px;
  border:1px solid transparent;
  transition:.2s var(--ease);
}
.nav-drawer a.nav-drawer__link:hover{background:rgba(255,255,255,.05)}
.nav-drawer a.nav-drawer__link.is-active{
  background:rgba(46,107,255,.16);
  border-color:rgba(46,107,255,.4);
  color:#fff;
}
.nav-drawer .btn{margin-top:14px;width:100%;justify-content:center}

/* ---------- 按钮体系 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  font-size:14.5px;
  font-weight:600;
  border-radius:var(--radius-btn);
  border:1px solid transparent;
  white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),color .2s var(--ease),filter .2s var(--ease);
}
.btn--primary{
  background:linear-gradient(95deg,var(--primary),var(--cyan));
  color:#04101F;
  box-shadow:var(--shadow-glow);
}
.btn--primary:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 34px rgba(46,107,255,.7)}
.btn--primary:active{transform:translateY(1px)}
.btn--ghost{
  background:rgba(255,255,255,.04);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn--ghost:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.55);color:#fff;background:rgba(34,211,238,.08)}
.btn--ghost:active{transform:translateY(1px)}
.btn--outline{
  background:transparent;
  border-color:rgba(46,107,255,.5);
  color:#BBD2FF;
}
.btn--outline:hover{background:rgba(46,107,255,.12);color:#fff;transform:translateY(-2px)}
.btn--sm{min-height:36px;padding:0 16px;font-size:13px}
.btn--lg{min-height:52px;padding:0 30px;font-size:16px}
.btn.is-disabled{
  opacity:.42;
  box-shadow:none;
  pointer-events:none;
  filter:none;
}
.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--cyan);
}
.link-arrow i,.link-arrow span.arw{display:inline-block;transition:transform .2s var(--ease)}
.link-arrow:hover span.arw{transform:translateX(4px)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  height:26px;
  padding:0 12px;
  font-size:12px;
  font-weight:600;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  color:var(--text-2);
  white-space:nowrap;
}
.badge--primary{
  border-color:rgba(46,107,255,.45);
  background:rgba(46,107,255,.16);
  color:#A9C6FF;
}
.badge--amber{
  border-color:rgba(255,138,61,.4);
  background:rgba(255,138,61,.14);
  color:#FFC09A;
}
.badge--green{
  border-color:rgba(47,217,139,.4);
  background:rgba(47,217,139,.13);
  color:#9BEFC9;
}
.tag{
  display:inline-flex;
  align-items:center;
  height:30px;
  padding:0 14px;
  font-size:13px;
  border-radius:var(--radius-btn);
  border:1px solid var(--line);
  color:var(--text-2);
  transition:.2s var(--ease);
}
.tag:hover{border-color:rgba(34,211,238,.5);color:var(--cyan);background:rgba(34,211,238,.07)}

/* ---------- 主体 ---------- */
main{position:relative;z-index:1;padding-top:118px}

/* 文章页头 */
.article-hero{
  position:relative;
  overflow:hidden;
  padding:36px 0 52px;
}
.article-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat;
  opacity:.26;
  -webkit-mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 92%);
  mask-image:linear-gradient(180deg,rgba(0,0,0,.9),transparent 92%);
}
.article-hero .container{position:relative;z-index:1}
.breadcrumb{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:8px;
  font-size:13px;
  color:var(--text-3);
  margin-bottom:20px;
}
.breadcrumb a{color:var(--text-2);transition:color .2s var(--ease)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{color:rgba(255,255,255,.22)}
.breadcrumb .current{
  max-width:420px;
  overflow:hidden;
  text-overflow:ellipsis;
  white-space:nowrap;
  color:var(--text-2);
}
.article-title{
  margin:16px 0 0;
  font-size:clamp(28px,4vw,48px);
  line-height:1.25;
  font-weight:800;
  letter-spacing:-.02em;
  color:#fff;
  max-width:920px;
}
.article-meta{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:10px 22px;
  margin-top:22px;
  font-size:13.5px;
  color:var(--text-2);
}
.article-meta span{display:inline-flex;align-items:center;gap:8px}
.article-meta span + span::before{
  content:"";
  width:1px;height:12px;
  background:rgba(255,255,255,.18);
  margin-right:14px;
}

/* 文章布局 */
.article-main{padding:8px 0 88px}
.article-layout{
  display:grid;
  grid-template-columns:minmax(0,760px) 280px;
  justify-content:space-between;
  gap:clamp(24px,4vw,56px);
  align-items:start;
}
.article-body{
  font-size:16.5px;
  line-height:1.85;
  color:#D5DFF2;
  background:rgba(13,20,40,.55);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:clamp(22px,3.4vw,40px);
  box-shadow:var(--shadow-card);
  min-width:0;
}
.article-body > * + *{margin-top:1em}
.article-body h2{
  position:relative;
  margin-top:40px;
  padding-left:16px;
  font-size:clamp(21px,2.3vw,27px);
  line-height:1.42;
  font-weight:800;
  letter-spacing:-.02em;
  color:#fff;
}
.article-body h2::before{
  content:"";
  position:absolute;
  left:0;top:.2em;bottom:.2em;
  width:3px;
  border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--cyan));
}
.article-body h3{
  margin-top:28px;
  font-size:19px;
  font-weight:700;
  color:#fff;
}
.article-body p{margin:0}
.article-body strong{color:#fff}
.article-body a{color:var(--cyan);border-bottom:1px dashed rgba(34,211,238,.5)}
.article-body a:hover{color:#fff;border-bottom-color:rgba(255,255,255,.6)}
.article-body ul{margin:1em 0}
.article-body ul li{position:relative;padding-left:22px;margin:.5em 0}
.article-body ul li::before{
  content:"";
  position:absolute;
  left:4px;top:.72em;
  width:7px;height:7px;
  background:linear-gradient(135deg,var(--primary),var(--cyan));
  border-radius:2px;
  transform:rotate(45deg);
}
.article-body ol{counter-reset:li;margin:1em 0}
.article-body ol li{position:relative;padding-left:32px;counter-increment:li;margin:.6em 0}
.article-body ol li::before{
  content:counter(li);
  position:absolute;
  left:0;top:.28em;
  width:22px;height:22px;
  line-height:21px;
  text-align:center;
  font-size:12px;
  font-weight:700;
  color:var(--cyan);
  border:1px solid rgba(34,211,238,.42);
  border-radius:7px;
}
.article-body blockquote{
  margin:24px 0;
  padding:16px 22px;
  border-left:3px solid var(--primary);
  border-radius:0 14px 14px 0;
  background:rgba(46,107,255,.08);
  color:#B7C6E0;
}
.article-body img{
  margin:24px auto;
  border-radius:var(--radius-img);
  border:1px solid var(--line);
}
.article-body figure{margin:24px 0}
.article-body figcaption{
  margin-top:10px;
  text-align:center;
  font-size:13px;
  color:var(--text-3);
}
.article-body table{
  width:100%;
  border-collapse:collapse;
  margin:24px 0;
  font-size:15px;
}
.article-body th,.article-body td{
  border:1px solid var(--line);
  padding:10px 14px;
  text-align:left;
}
.article-body th{background:rgba(255,255,255,.05);color:#fff;font-weight:700}
.article-body hr{border:0;height:1px;background:var(--line);margin:32px 0}
.article-body pre{
  margin:24px 0;
  padding:16px 18px;
  background:#060A16;
  border:1px solid var(--line);
  border-radius:14px;
  overflow-x:auto;
  font-size:14px;
  line-height:1.7;
}
.article-body code{font-family:ui-monospace,SFMono-Regular,Menlo,Consolas,monospace}
.article-body :not(pre) > code{
  padding:2px 7px;
  font-size:.9em;
  border-radius:6px;
  background:rgba(255,255,255,.07);
  color:#9FE8F5;
}

/* 侧栏 */
.article-side{
  position:sticky;
  top:100px;
  display:flex;
  flex-direction:column;
  gap:20px;
}
.side-card{
  background:rgba(13,20,40,.72);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  padding:20px;
  box-shadow:var(--shadow-card);
}
.side-card__title{
  display:flex;
  align-items:center;
  justify-content:space-between;
  font-size:14px;
  font-weight:700;
  color:#fff;
  padding-bottom:14px;
  border-bottom:1px solid var(--line);
  margin-bottom:14px;
}
.side-card__title em{font-style:normal;font-size:12px;color:var(--text-3);font-weight:400}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:340px;overflow:auto}
.toc-list a{
  display:block;
  padding:8px 10px 8px 14px;
  font-size:13.5px;
  line-height:1.5;
  color:var(--text-2);
  border-left:2px solid transparent;
  border-radius:0 8px 8px 0;
  transition:.2s var(--ease);
}
.toc-list a:hover{color:var(--text);background:rgba(255,255,255,.04)}
.toc-list a.is-current{
  color:var(--cyan);
  border-left-color:var(--cyan);
  background:rgba(34,211,238,.08);
}
.toc-list a.lv3{padding-left:26px;font-size:13px;color:var(--text-3)}
.toc-empty{font-size:13px;color:var(--text-3)}
.side-rec{display:flex;flex-direction:column;gap:14px}
.side-rec__item{display:flex;gap:12px;align-items:flex-start}
.side-rec__item img{
  width:64px;height:64px;
  flex:0 0 64px;
  object-fit:cover;
  border-radius:12px;
  border:1px solid var(--line);
}
.side-rec__item h4{
  font-size:13.5px;
  font-weight:600;
  line-height:1.5;
  color:var(--text);
  margin-bottom:4px;
  transition:color .2s var(--ease);
}
.side-rec__item:hover h4{color:var(--cyan)}
.side-rec__item span{font-size:12px;color:var(--text-3)}

/* 空态 */
.empty-state{
  display:flex;
  flex-direction:column;
  align-items:center;
  justify-content:center;
  text-align:center;
  gap:14px;
  padding:48px 20px;
}
.empty-state__icon{
  width:64px;height:64px;
  border-radius:20px;
  border:1px solid var(--line);
  background:rgba(46,107,255,.1);
  display:flex;
  align-items:center;
  justify-content:center;
  font-size:26px;
  color:var(--cyan);
}
.empty-state h2{font-size:20px;color:#fff;font-weight:700}
.empty-state p{font-size:14.5px;color:var(--text-2);max-width:420px}

/* 文末 */
.article-foot{margin-top:34px;display:flex;flex-direction:column;gap:22px}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-row__label{font-size:13px;color:var(--text-3);margin-right:2px}
.share-row{
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  gap:12px;
  padding-top:20px;
  border-top:1px solid var(--line);
}
.share-row__label{font-size:13px;color:var(--text-3);margin-right:4px}
.prevnext{
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:16px;
  margin-top:34px;
}
.prevnext__item{
  display:block;
  padding:18px 20px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:rgba(13,20,40,.6);
  transition:.22s var(--ease);
}
.prevnext__item span{display:block;font-size:12px;color:var(--text-3);margin-bottom:6px}
.prevnext__item strong{display:block;font-size:14.5px;font-weight:600;color:var(--text);line-height:1.55}
a.prevnext__item:hover{border-color:rgba(46,107,255,.5);transform:translateY(-3px);box-shadow:var(--shadow-card)}
.prevnext__item.is-disabled{opacity:.45}
.prevnext__item.is-disabled strong{color:var(--text-2)}
.return-row{margin-top:30px;display:flex;justify-content:center}

/* 相关推荐 */
.related{padding:0 0 88px}
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  margin-bottom:26px;
}
.section-head h2{
  font-size:clamp(21px,2.4vw,28px);
  font-weight:800;
  letter-spacing:-.02em;
  color:#fff;
}
.section-head p{font-size:14px;color:var(--text-2);margin-top:8px;max-width:620px}
.rec-grid{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
}
.rec-card{
  display:flex;
  flex-direction:column;
  background:rgba(13,20,40,.7);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  overflow:hidden;
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.rec-card:hover{transform:translateY(-3px);border-color:rgba(46,107,255,.5)}
.rec-card__media{aspect-ratio:16/10;overflow:hidden;background:rgba(46,107,255,.08)}
.rec-card__media img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease)}
.rec-card:hover .rec-card__media img{transform:scale(1.03)}
.rec-card__body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1 1 auto}
.rec-card__body h3{font-size:16.5px;font-weight:700;line-height:1.5;color:#fff}
.rec-card__body p{font-size:13.8px;color:var(--text-2);line-height:1.7;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.rec-card__body .link-arrow{margin-top:auto;padding-top:8px}

/* CTA */
.cta-band{padding:0 0 88px}
.cta-panel{
  position:relative;
  overflow:hidden;
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
  padding:clamp(26px,3.4vw,44px);
  border-radius:24px;
  border:1px solid var(--line);
  background:rgba(13,20,40,.78);
  box-shadow:var(--shadow-card);
}
.cta-panel::before{
  content:"";
  position:absolute;
  top:-40%;left:-10%;
  width:120%;height:180%;
  background:linear-gradient(105deg,transparent 30%,rgba(46,107,255,.22) 48%,rgba(34,211,238,.12) 58%,transparent 76%);
  transform:rotate(-6deg);
  pointer-events:none;
}
.cta-panel > *{position:relative;z-index:1}
.cta-panel h2{font-size:clamp(20px,2.3vw,26px);font-weight:800;color:#fff;letter-spacing:-.02em}
.cta-panel p{margin-top:10px;font-size:14.5px;color:var(--text-2);max-width:560px}
.cta-panel__actions{display:flex;flex-wrap:wrap;align-items:center;gap:16px}

/* 页脚 */
.site-footer{
  position:relative;
  z-index:1;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(8,13,28,.6),rgba(5,8,18,.95));
  padding:64px 0 28px;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:36px;
}
.footer-brand__name{font-size:17px;font-weight:800;color:#fff;letter-spacing:-.02em}
.footer-brand__sub{font-size:12px;color:var(--text-3);letter-spacing:.06em;margin-top:6px}
.footer-brand p{margin-top:16px;font-size:13.8px;color:var(--text-2);line-height:1.8;max-width:340px}
.social{display:flex;gap:10px;margin-top:18px}
.social a{
  width:38px;height:38px;
  display:flex;align-items:center;justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  font-size:13px;
  color:var(--text-2);
  transition:.2s var(--ease);
}
.social a:hover{color:#04101F;background:linear-gradient(95deg,var(--primary),var(--cyan));border-color:transparent;transform:translateY(-2px)}
.site-footer h3{font-size:14px;font-weight:700;color:#fff;margin-bottom:16px}
.footer-list{display:flex;flex-direction:column;gap:10px}
.footer-list a,.footer-contact li{
  font-size:13.8px;
  color:var(--text-2);
  line-height:1.75;
}
.footer-list a{display:inline-block;transition:.2s var(--ease)}
.footer-list a:hover{color:var(--cyan);transform:translateX(3px)}
.footer-contact strong{color:#C6D2E6;font-weight:600}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
  font-size:13px;
  color:var(--text-3);
}
.to-top{
  padding:9px 18px;
  font-size:13px;
  color:var(--text-2);
  border:1px solid var(--line);
  border-radius:var(--radius-btn);
  transition:.2s var(--ease);
}
.to-top:hover{color:#fff;border-color:rgba(34,211,238,.55);transform:translateY(-2px)}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .article-layout{grid-template-columns:minmax(0,1fr) 260px;gap:32px}
}
@media (max-width:1023px){
  .nav__menu{display:none}
  .nav__toggle{display:block}
  .nav{padding:0 10px 0 18px}
  .article-layout{grid-template-columns:minmax(0,1fr);gap:26px}
  .article-side{position:static;order:2}
  .rec-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
  .footer-grid{grid-template-columns:1fr 1fr;gap:30px}
}
@media (max-width:767px){
  .container{padding:0 20px}
  main{padding-top:104px}
  .site-header{top:10px;padding:0 12px}
  .nav{height:60px}
  .nav__inline-cta{display:none}
  .article-hero{padding:24px 0 34px}
  .article-title{font-size:clamp(24px,7vw,30px)}
  .article-body{padding:22px 18px;font-size:16px}
  .article-main{padding-bottom:56px}
  .prevnext{grid-template-columns:1fr}
  .related{padding-bottom:56px}
  .cta-band{padding-bottom:56px}
  .section-head{flex-direction:column;align-items:flex-start}
  .footer-grid{grid-template-columns:1fr;gap:28px}
  .footer-brand p{max-width:none}
}
@media (max-width:520px){
  .rec-grid{grid-template-columns:1fr}
  .btn{width:100%}
  .nav .btn{width:auto}
  .cta-panel__actions{width:100%}
  .cta-panel__actions .btn{flex:1 1 auto}
  .breadcrumb .current{max-width:200px}
  .article-meta span + span::before{display:none}
  .article-meta{gap:8px 16px}
  .share-row .btn{width:100%}
}
@media (max-width:1023px){
  .nav-drawer .btn{width:100%}
}

/* roulang page: category1 */
:root{
  --bg:#070C1A;
  --panel:#0D1428;
  --panel-2:#111A33;
  --panel-3:#0A1122;
  --primary:#2E6BFF;
  --primary-2:#22D3EE;
  --amber:#FF8A3D;
  --green:#2FD98B;
  --danger:#FF5D5D;
  --text:#E8EEF9;
  --muted:#94A3BE;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --radius-card:18px;
  --radius-img:14px;
  --radius-input:12px;
  --shadow-card:0 12px 40px rgba(0,0,0,.45);
  --shadow-glow:0 0 24px rgba(46,107,255,.55);
  --container:1240px;
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    linear-gradient(180deg, rgba(46,107,255,.16) 0%, rgba(7,12,26,0) 560px),
    linear-gradient(115deg, rgba(34,211,238,.10) 0%, rgba(7,12,26,0) 46%),
    repeating-linear-gradient(0deg, rgba(255,255,255,.026) 0 1px, transparent 1px 44px),
    repeating-linear-gradient(90deg, rgba(255,255,255,.026) 0 1px, transparent 1px 44px);
  background-attachment:fixed,fixed,fixed,fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button,input,textarea,select{font:inherit;color:inherit;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.28;}
p{margin:0 0 1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--primary-2);outline-offset:2px;border-radius:8px;}
::selection{background:rgba(46,107,255,.4);}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;}
.num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

/* ---------- header / nav ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:90;
  padding:16px 20px;
  transition:padding .24s ease-out;
}
.site-header.is-scrolled{padding:8px 20px;}
.nav{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  height:68px;
  display:flex;
  align-items:center;
  gap:22px;
  padding:0 14px 0 22px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(13,20,40,.55);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  box-shadow:0 10px 34px rgba(0,0,0,.35);
  transition:height .24s ease-out,background .24s ease-out,box-shadow .24s ease-out;
}
.site-header.is-scrolled .nav{
  height:56px;
  background:rgba(9,14,30,.86);
  box-shadow:0 14px 44px rgba(0,0,0,.55);
}
.logo{display:flex;flex-direction:column;justify-content:center;gap:1px;flex-shrink:0;padding:6px 4px;border-radius:12px;}
.logo__main{font-size:17px;font-weight:900;letter-spacing:-.01em;line-height:1.2;background:linear-gradient(92deg,#E8EEF9 20%,var(--primary-2) 100%);-webkit-background-clip:text;background-clip:text;color:transparent;}
.logo__sub{font-size:11px;color:var(--muted);line-height:1.3;letter-spacing:.04em;}
.nav__menu{display:flex;align-items:center;gap:4px;margin-left:auto;overflow:hidden;}
.nav__link{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:40px;
  padding:0 14px;
  font-size:14.5px;
  color:var(--muted);
  border-radius:999px;
  white-space:nowrap;
  transition:color .18s ease-out,background .18s ease-out;
}
.nav__link:hover{color:var(--text);background:rgba(255,255,255,.06);}
.nav__link.is-active{color:var(--text);font-weight:700;}
.nav__link.is-active::after{
  content:"";
  position:absolute;
  left:14px;right:14px;bottom:2px;
  height:2px;
  border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--primary-2));
}
.nav__right{display:flex;align-items:center;gap:10px;margin-left:auto;}
.nav__menu + .nav__right{margin-left:0;}
.nav__toggle{
  display:none;
  width:44px;height:44px;
  align-items:center;justify-content:center;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(255,255,255,.05);
  cursor:pointer;
}
.nav__toggle span{position:relative;display:block;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease-out,background .2s ease-out;}
.nav__toggle span::before,.nav__toggle span::after{content:"";position:absolute;left:0;width:18px;height:2px;background:var(--text);border-radius:2px;transition:transform .2s ease-out;}
.nav__toggle span::before{top:-6px;}
.nav__toggle span::after{top:6px;}
.nav__toggle[aria-expanded="true"] span{background:transparent;}
.nav__toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav__toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  min-height:44px;
  padding:0 22px;
  font-size:15px;
  font-weight:700;
  border-radius:999px;
  border:1px solid transparent;
  cursor:pointer;
  white-space:nowrap;
  transition:transform .18s ease-out,box-shadow .2s ease-out,background .2s ease-out,border-color .2s ease-out,filter .2s ease-out;
}
.btn--primary{
  color:#F4F8FF;
  background:linear-gradient(100deg,var(--primary) 0%,#1F8AE0 55%,var(--primary-2) 100%);
  box-shadow:var(--shadow-glow);
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(46,107,255,.7);filter:brightness(1.06);}
.btn--primary:active{transform:translateY(-1px);}
.btn--ghost{
  color:var(--text);
  background:rgba(255,255,255,.04);
  border-color:var(--line-strong);
}
.btn--ghost:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.55);background:rgba(34,211,238,.08);}
.btn--sm{min-height:38px;padding:0 16px;font-size:13.5px;}
.btn--lg{min-height:52px;padding:0 30px;font-size:16px;}
.btn--disabled,.btn:disabled{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}
.nav__cta{min-height:40px;padding:0 20px;font-size:14px;}

/* ---------- hero ---------- */
.page-hero{
  position:relative;
  padding:56px 0 56px;
  overflow:hidden;
}
.page-hero::before{
  content:"";
  position:absolute;
  inset:0;
  background-image:linear-gradient(180deg,rgba(7,12,26,.72) 0%,rgba(7,12,26,.94) 70%,var(--bg) 100%),url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center 20%;
  opacity:.5;
  pointer-events:none;
}
.page-hero > .container{position:relative;z-index:1;}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--muted);margin-bottom:22px;}
.crumb a{color:var(--muted);transition:color .18s ease-out;}
.crumb a:hover{color:var(--primary-2);}
.crumb span.sep{color:rgba(148,163,190,.5);}
.crumb .cur{color:var(--text);}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);gap:40px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.08em;
  color:var(--primary-2);
  padding:6px 14px;
  border:1px solid rgba(34,211,238,.35);
  border-radius:999px;
  background:rgba(34,211,238,.08);
  margin-bottom:18px;
}
h1.hero-title{
  font-size:clamp(30px,4vw,48px);
  font-weight:900;
  margin-bottom:18px;
}
h1.hero-title em{
  font-style:normal;
  background:linear-gradient(96deg,var(--primary) 0%,var(--primary-2) 100%);
  -webkit-background-clip:text;
  background-clip:text;
  color:transparent;
}
.hero-lead{font-size:16.5px;color:#C3D1E8;max-width:620px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-stats{display:flex;flex-wrap:wrap;gap:0;border-top:1px solid var(--line);padding-top:20px;}
.hero-stats li{
  flex:1 1 0;
  min-width:120px;
  padding-right:18px;
  border-right:1px solid var(--line);
}
.hero-stats li:last-child{border-right:0;}
.hero-stats strong{display:block;font-size:22px;font-weight:900;color:var(--text);}
.hero-stats span{font-size:12.5px;color:var(--muted);}
.hero-side{
  position:relative;
  border-radius:22px;
  border:1px solid var(--line-strong);
  background:linear-gradient(160deg,rgba(17,26,51,.92) 0%,rgba(10,17,34,.92) 100%);
  -webkit-backdrop-filter:blur(14px);
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  padding:22px;
  overflow:hidden;
}
.hero-side::after{
  content:"";
  position:absolute;
  width:280px;height:280px;
  right:-90px;top:-110px;
  background:radial-gradient(circle,rgba(46,107,255,.35),transparent 68%);
  pointer-events:none;
}
.hero-side__img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid var(--line);
  background:rgba(46,107,255,.08);
}
.hero-side__tag{
  position:absolute;
  top:36px;left:36px;
  font-size:12px;
  padding:4px 12px;
  border-radius:999px;
  background:rgba(255,138,61,.16);
  border:1px solid rgba(255,138,61,.5);
  color:var(--amber);
  font-weight:700;
}
.hero-side__body{padding-top:18px;position:relative;z-index:1;}
.hero-side__body h2{font-size:19px;margin-bottom:8px;}
.hero-side__body p{font-size:14px;color:var(--muted);}
.hero-status{
  position:relative;
  margin-top:18px;
  padding:14px 16px;
  border-radius:14px;
  border:1px solid var(--line);
  background:rgba(34,211,238,.07);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:#BFD5E6;
}
.hero-status b{color:var(--green);font-weight:700;}
.dot{display:inline-block;width:8px;height:8px;border-radius:50%;background:var(--green);margin-right:6px;box-shadow:0 0 10px rgba(47,217,139,.8);}

/* ---------- section base ---------- */
.section{padding:88px 0;}
.section--tight{padding:64px 0;}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:18px;margin-bottom:36px;}
.section-head h2{font-size:clamp(22px,2.6vw,32px);}
.section-head p{color:var(--muted);font-size:14.5px;margin:8px 0 0;max-width:660px;}
.link-more{display:inline-flex;align-items:center;gap:6px;font-size:14px;font-weight:700;color:var(--primary-2);transition:gap .18s ease-out,color .18s ease-out;}
.link-more:hover{gap:12px;color:#7FE9F7;}

/* ---------- filter chips ---------- */
.chips{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;
  height:38px;padding:0 18px;
  font-size:13.5px;
  color:var(--muted);
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(255,255,255,.03);
  transition:color .18s ease-out,border-color .18s ease-out,background .18s ease-out,transform .18s ease-out;
}
.chip:hover{color:var(--text);border-color:var(--line-strong);transform:translateY(-2px);}
.chip.is-active{
  color:#F4F8FF;
  border-color:transparent;
  background:linear-gradient(100deg,var(--primary),var(--primary-2));
  box-shadow:0 0 20px rgba(46,107,255,.45);
  font-weight:700;
}

/* ---------- featured card ---------- */
.featured{
  display:grid;
  grid-template-columns:minmax(0,.95fr) minmax(0,1.05fr);
  gap:0;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:linear-gradient(150deg,rgba(17,26,51,.85),rgba(10,17,34,.9));
  box-shadow:var(--shadow-card);
  overflow:hidden;
  margin-bottom:40px;
}
.featured__media{position:relative;min-height:280px;}
.featured__media img{width:100%;height:100%;object-fit:cover;background:rgba(46,107,255,.08);}
.featured__media::after{content:"";position:absolute;inset:0;background:linear-gradient(90deg,rgba(7,12,26,0) 40%,rgba(10,17,34,.85) 100%);}
.featured__body{padding:32px 34px;display:flex;flex-direction:column;justify-content:center;gap:14px;}
.featured__body h3{font-size:clamp(19px,2.2vw,26px);}
.featured__body p{color:var(--muted);font-size:15px;}
.featured__meta{display:flex;flex-wrap:wrap;gap:10px;align-items:center;}
.featured__actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px;}

/* ---------- badges / tags ---------- */
.badge{
  display:inline-flex;align-items:center;
  height:24px;padding:0 10px;
  font-size:12px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:var(--muted);
}
.badge--primary{color:#9DBEFF;border-color:rgba(46,107,255,.5);background:rgba(46,107,255,.14);}
.badge--amber{color:var(--amber);border-color:rgba(255,138,61,.45);background:rgba(255,138,61,.12);}
.badge--green{color:var(--green);border-color:rgba(47,217,139,.45);background:rgba(47,217,139,.12);}
.tags{display:flex;flex-wrap:wrap;gap:8px;}

/* ---------- card grid ---------- */
.card-grid{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:var(--gap);}
.card{
  display:flex;
  flex-direction:column;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:linear-gradient(165deg,rgba(17,26,51,.82),rgba(10,17,34,.86));
  box-shadow:var(--shadow-card);
  overflow:hidden;
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.card:hover{transform:translateY(-3px);border-color:rgba(46,107,255,.45);box-shadow:0 18px 46px rgba(0,0,0,.55);}
.card__media{position:relative;overflow:hidden;}
.card__media img{
  width:100%;
  aspect-ratio:16/10;
  object-fit:cover;
  background:rgba(46,107,255,.08);
  transition:transform .35s ease-out;
}
.card:hover .card__media img{transform:scale(1.03);}
.card__media .badge{position:absolute;top:14px;left:14px;background:rgba(7,12,26,.72);-webkit-backdrop-filter:blur(8px);backdrop-filter:blur(8px);}
.card__body{padding:22px 22px 20px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card__body h3{font-size:17.5px;}
.card__body p{font-size:14px;color:var(--muted);margin:0;}
.card__foot{
  margin-top:auto;
  padding:14px 22px;
  border-top:1px solid var(--line);
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:12px;
  font-size:13px;
  color:var(--muted);
}

/* ---------- steps ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:var(--gap);}
.step{
  position:relative;
  padding:26px 22px;
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:rgba(13,20,40,.62);
  transition:border-color .2s ease-out,transform .2s ease-out;
}
.step:hover{border-color:rgba(34,211,238,.4);transform:translateY(-3px);}
.step__no{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;
  border-radius:12px;
  font-weight:900;
  font-size:16px;
  color:#0A1122;
  background:linear-gradient(120deg,var(--primary),var(--primary-2));
  margin-bottom:16px;
}
.step h3{font-size:17px;margin-bottom:8px;}
.step p{font-size:14px;color:var(--muted);margin:0;}

/* ---------- assurance strip ---------- */
.strip{
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  background:rgba(13,20,40,.7);
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  overflow:hidden;
}
.strip__item{padding:24px 22px;border-right:1px solid var(--line);}
.strip__item:last-child{border-right:0;}
.strip__item strong{display:block;font-size:15.5px;color:var(--text);margin-bottom:6px;}
.strip__item span{font-size:13.5px;color:var(--muted);}
.strip__icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:34px;height:34px;border-radius:10px;
  font-size:14px;font-weight:900;
  color:var(--primary-2);
  border:1px solid rgba(34,211,238,.35);
  background:rgba(34,211,238,.08);
  margin-bottom:14px;
}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:0 40px;}
.faq-item{border-bottom:1px solid var(--line);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:20px 0;
  min-height:44px;
  background:none;
  border:0;
  text-align:left;
  font-size:16px;
  font-weight:700;
  color:var(--text);
  cursor:pointer;
  transition:color .18s ease-out;
}
.faq-q:hover{color:var(--primary-2);}
.faq-icon{
  flex:0 0 auto;
  width:26px;height:26px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line-strong);
  color:var(--primary-2);
  font-size:16px;
  line-height:1;
  transition:transform .22s ease-out,background .22s ease-out;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg);background:rgba(46,107,255,.18);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .28s ease-out,opacity .24s ease-out;
  opacity:0;
}
.faq-item.is-open .faq-a{opacity:1;}
.faq-a p{padding:0 0 20px;font-size:14.5px;color:var(--muted);margin:0;}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;
  border:1px solid var(--line-strong);
  border-radius:22px;
  padding:38px 40px;
  overflow:hidden;
  background:linear-gradient(120deg,rgba(17,26,51,.95),rgba(10,17,34,.95));
  box-shadow:var(--shadow-card);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.cta-band::before{
  content:"";
  position:absolute;
  top:-40%;left:-10%;
  width:70%;height:180%;
  transform:rotate(-14deg);
  background:linear-gradient(90deg,rgba(46,107,255,.30),rgba(34,211,238,.14),rgba(46,107,255,0));
  pointer-events:none;
}
.cta-band > *{position:relative;z-index:1;}
.cta-band h2{font-size:clamp(20px,2.4vw,28px);margin-bottom:8px;}
.cta-band p{color:var(--muted);font-size:14.5px;margin:0;max-width:560px;}
.cta-band__actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

/* ---------- related ---------- */
.related{display:flex;flex-wrap:wrap;gap:12px;}

/* ---------- footer ---------- */
.site-footer{
  margin-top:40px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(10,17,34,.6),rgba(7,12,26,.95));
  padding:64px 0 26px;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand__name{font-size:17px;font-weight:900;color:var(--text);}
.footer-brand__sub{font-size:12px;color:var(--muted);letter-spacing:.04em;margin-bottom:14px;}
.footer-brand p{font-size:13.5px;color:var(--muted);max-width:340px;}
.site-footer h3{font-size:14px;font-weight:800;color:var(--text);margin-bottom:16px;letter-spacing:.02em;}
.footer-list li{margin-bottom:10px;}
.footer-list a,.footer-contact li{font-size:13.5px;color:var(--muted);transition:color .18s ease-out,transform .18s ease-out;display:inline-block;}
.footer-list a:hover{color:var(--primary-2);transform:translateX(3px);}
.footer-contact li{margin-bottom:12px;display:block;}
.footer-contact strong{color:#C3D1E8;font-weight:700;}
.social{display:flex;gap:10px;margin-top:18px;}
.social a{
  width:36px;height:36px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid var(--line);
  background:rgba(255,255,255,.04);
  font-size:13px;
  color:var(--muted);
  transition:color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
}
.social a:hover{color:var(--primary-2);border-color:rgba(34,211,238,.5);transform:translateY(-2px);}
.footer-bottom{
  margin-top:44px;
  padding-top:22px;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  align-items:center;
  justify-content:space-between;
  gap:14px;
}
.footer-bottom p{font-size:13px;color:var(--muted);margin:0;}
.to-top{
  height:40px;
  padding:0 18px;
  border-radius:999px;
  border:1px solid var(--line-strong);
  background:rgba(255,255,255,.04);
  color:var(--muted);
  font-size:13px;
  cursor:pointer;
  transition:color .18s ease-out,border-color .18s ease-out,transform .18s ease-out;
}
.to-top:hover{color:var(--primary-2);border-color:rgba(34,211,238,.5);transform:translateY(-2px);}

/* ---------- responsive ---------- */
@media (max-width:1279px){
  .card-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .strip{grid-template-columns:repeat(2,minmax(0,1fr));}
  .strip__item:nth-child(2){border-right:0;}
  .strip__item:nth-child(1),.strip__item:nth-child(2){border-bottom:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .hero-side{order:2;}
  .featured{grid-template-columns:1fr;}
  .featured__media{min-height:220px;}
  .featured__media::after{background:linear-gradient(180deg,rgba(7,12,26,0) 40%,rgba(10,17,34,.9) 100%);}
}
@media (max-width:860px){
  .nav{padding:0 10px 0 16px;gap:12px;height:60px;}
  .site-header.is-scrolled .nav{height:54px;}
  .logo__main{font-size:15px;}
  .logo__sub{font-size:10px;}
  .nav__menu{
    position:fixed;
    inset:0;
    display:none;
    flex-direction:column;
    align-items:stretch;
    gap:0;
    padding:92px 24px 24px;
    background:#0B1226;
    border-radius:0;
    overflow-y:auto;
    box-shadow:none;
  }
  .nav__menu.is-open{display:flex;}
  .nav__link{
    height:52px;
    padding:0 4px;
    border-bottom:1px solid var(--line);
    border-radius:0;
    font-size:16px;
    color:var(--text);
    white-space:normal;
  }
  .nav__link.is-active::after{left:4px;right:4px;bottom:0;}
  .nav__toggle{display:inline-flex;z-index:95;}
  .nav__cta{display:none;}
  .nav__right{margin-left:auto;}
  .faq-grid{grid-template-columns:1fr;}
  .section{padding:56px 0;}
  .section--tight{padding:48px 0;}
  .container{padding:0 20px;}
  .cta-band{padding:28px 22px;}
}
@media (max-width:640px){
  .card-grid{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .strip{grid-template-columns:1fr;}
  .strip__item{border-right:0;border-bottom:1px solid var(--line);}
  .strip__item:last-child{border-bottom:0;}
  .footer-grid{grid-template-columns:1fr;}
  .hero-stats{overflow-x:auto;flex-wrap:nowrap;padding-bottom:6px;}
  .hero-stats li{flex:0 0 auto;min-width:118px;}
}
@media (max-width:480px){
  .hero-actions .btn,.cta-band__actions .btn{width:100%;}
  .page-hero{padding:36px 0 42px;}
  .featured__body{padding:24px 20px;}
  .card__body{padding:18px;}
  .card__foot{padding:12px 18px;}
}

/* roulang page: category3 */
:root{
  --bg:#070C1A;
  --bg-2:#0D1428;
  --panel:rgba(255,255,255,.035);
  --panel-solid:#101833;
  --primary:#2E6BFF;
  --cyan:#22D3EE;
  --amber:#FF8A3D;
  --success:#2FD98B;
  --danger:#FF5D5D;
  --text:#E8EEF9;
  --text-2:#94A3BE;
  --line:rgba(255,255,255,.10);
  --line-soft:rgba(255,255,255,.06);
  --r-card:18px;
  --r-img:14px;
  --r-input:12px;
  --shadow-card:0 12px 40px rgba(0,0,0,.45);
  --shadow-glow:0 0 24px rgba(46,107,255,.55);
  --container:1240px;
  --gap:24px;
  --sec:88px;
  --t:220ms ease-out;
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:16px;
  line-height:1.85;
  letter-spacing:.01em;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:linear-gradient(rgba(255,255,255,.028) 1px,transparent 1px),linear-gradient(90deg,rgba(255,255,255,.028) 1px,transparent 1px);
  background-size:56px 56px;
  mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 78%);
  -webkit-mask-image:radial-gradient(ellipse at 50% 0%,#000 0%,transparent 78%);
}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none}
button,input,textarea,select{font:inherit;color:inherit}
button{cursor:pointer;background:none;border:0}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
:focus-visible{outline:2px solid var(--cyan);outline-offset:2px;border-radius:6px}
.wrap{position:relative;z-index:1}
.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px}

/* ============ 顶部胶囊导航 ============ */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:60;transition:top var(--t)}
.nav{
  width:100%;max-width:1200px;margin:0 auto;
  display:flex;align-items:center;gap:20px;
  height:68px;padding:0 10px 0 22px;
  border:1px solid var(--line);border-radius:999px;
  background:rgba(13,20,40,.55);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:0 12px 40px rgba(0,0,0,.35);
  transition:height var(--t),background var(--t),box-shadow var(--t);
}
.site-header.is-scrolled{top:8px}
.site-header.is-scrolled .nav{height:56px;background:rgba(9,14,30,.88);box-shadow:0 16px 44px rgba(0,0,0,.55)}
.logo{display:flex;flex-direction:column;justify-content:center;flex-shrink:0;line-height:1.15}
.logo__main{font-size:17px;font-weight:900;letter-spacing:-.01em;background:linear-gradient(92deg,#fff 10%,var(--cyan) 130%);-webkit-background-clip:text;background-clip:text;color:transparent}
.logo__sub{font-size:11px;color:var(--text-2);letter-spacing:.16em;margin-top:2px}
.nav__menu{display:flex;align-items:center;gap:4px;margin-left:auto;overflow-x:auto;scrollbar-width:none}
.nav__menu::-webkit-scrollbar{display:none}
.nav__link{
  position:relative;padding:8px 14px;border-radius:999px;
  font-size:14px;color:var(--text-2);white-space:nowrap;
  transition:color var(--t),background var(--t);
}
.nav__link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav__link.is-active{color:#fff}
.nav__link.is-active::after{
  content:"";position:absolute;left:14px;right:14px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--cyan));
}
.nav__right{display:flex;align-items:center;gap:10px;flex-shrink:0}
.nav__toggle{display:none;width:44px;height:44px;border-radius:999px;border:1px solid var(--line);position:relative}
.nav__toggle span,.nav__toggle span::before,.nav__toggle span::after{
  content:"";position:absolute;left:50%;top:50%;width:18px;height:2px;background:var(--text);border-radius:2px;transform:translate(-50%,-50%);
  transition:transform var(--t),opacity var(--t);
}
.nav__toggle span::before{transform:translate(-50%,-8px)}
.nav__toggle span::after{transform:translate(-50%,6px)}
body.nav-open .nav__toggle span{transform:translate(-50%,-50%) rotate(45deg)}
body.nav-open .nav__toggle span::before{transform:translate(-50%,0) rotate(90deg)}
body.nav-open .nav__toggle span::after{opacity:0}

/* 按钮 */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;font-weight:700;letter-spacing:.01em;
  min-height:44px;padding:0 22px;font-size:14px;
  transition:transform var(--t),box-shadow var(--t),background var(--t),color var(--t),border-color var(--t);
  border:1px solid transparent;
}
.btn--primary{background:linear-gradient(96deg,var(--primary),var(--cyan));color:#04101F;box-shadow:var(--shadow-glow)}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(46,107,255,.75);filter:brightness(1.06)}
.btn--primary:active{transform:translateY(-1px)}
.btn--ghost{background:rgba(255,255,255,.05);border-color:var(--line);color:var(--text)}
.btn--ghost:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.55);color:#fff}
.btn--lg{min-height:52px;padding:0 30px;font-size:15px}
.btn--sm{min-height:38px;padding:0 16px;font-size:13px}
.btn--amber{background:linear-gradient(96deg,#FF8A3D,#FFB06B);color:#1A0C02;box-shadow:0 0 22px rgba(255,138,61,.4)}
.btn--amber:hover{transform:translateY(-2px);filter:brightness(1.05)}
.link-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--cyan);font-weight:700;font-size:14px}
.link-arrow span{transition:transform var(--t)}
.link-arrow:hover span{transform:translateX(4px)}

/* ============ 页面头部 ============ */
.page-hero{
  position:relative;padding:150px 0 72px;overflow:hidden;
  border-bottom:1px solid var(--line-soft);
}
.page-hero__bg{
  position:absolute;inset:0;
  background:url("/assets/images/backpic/back-2.webp") center/cover no-repeat;
  opacity:.30;
}
.page-hero__bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(160deg,rgba(7,12,26,.72) 0%,rgba(7,12,26,.94) 62%,rgba(7,12,26,1) 100%);
}
.page-hero__beam{
  position:absolute;left:-10%;top:-40%;width:120%;height:280px;
  background:linear-gradient(100deg,transparent 20%,rgba(46,107,255,.28) 48%,rgba(34,211,238,.22) 62%,transparent 82%);
  transform:skewY(-6deg);filter:blur(6px);pointer-events:none;
}
.page-hero .container{position:relative;z-index:2}
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-2);margin-bottom:18px}
.crumb a:hover{color:var(--cyan)}
.crumb i{font-style:normal;opacity:.5}
.page-hero h1{
  font-size:clamp(30px,4.6vw,50px);font-weight:900;max-width:820px;
  background:linear-gradient(94deg,#FFFFFF 20%,#BBD4FF 70%,var(--cyan) 130%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.page-hero__lead{max-width:760px;margin-top:18px;color:var(--text-2);font-size:16.5px}
.page-hero__stats{
  display:flex;flex-wrap:wrap;gap:0;margin-top:34px;
  border-top:1px solid var(--line-soft);padding-top:20px;
}
.stat{flex:1 1 160px;min-width:140px;padding:0 22px;border-left:1px solid var(--line-soft)}
.stat:first-child{padding-left:0;border-left:0}
.stat__num{font-size:26px;font-weight:900;font-variant-numeric:tabular-nums;color:#fff}
.stat__num em{font-style:normal;font-size:14px;color:var(--cyan);margin-left:2px}
.stat__label{font-size:13px;color:var(--text-2)}

/* ============ 通用板块 ============ */
.section{padding:var(--sec) 0}
.section--tight{padding:64px 0}
.sec-head{max-width:720px;margin-bottom:40px}
.sec-tag{
  display:inline-flex;align-items:center;gap:8px;padding:5px 14px;border-radius:999px;
  border:1px solid rgba(46,107,255,.45);background:rgba(46,107,255,.12);
  font-size:12px;color:#BBD4FF;letter-spacing:.08em;margin-bottom:16px;
}
.sec-tag--amber{border-color:rgba(255,138,61,.45);background:rgba(255,138,61,.12);color:#FFC79B}
.sec-title{font-size:clamp(24px,3vw,34px);font-weight:900}
.sec-desc{margin-top:14px;color:var(--text-2)}

/* 双列图文引导 */
.guide{display:grid;gap:56px}
.guide__row{
  display:grid;grid-template-columns:1.05fr 1fr;gap:44px;align-items:center;
}
.guide__row--flip .guide__media{order:2}
.guide__media{
  position:relative;border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow-card);
  aspect-ratio:16/10;background:rgba(46,107,255,.08);
}
.guide__media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out}
.guide__row:hover .guide__media img{transform:scale(1.03)}
.guide__media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,12,26,0) 35%,rgba(7,12,26,.78) 100%);
}
.guide__badge{
  position:absolute;left:18px;top:18px;z-index:2;
  padding:5px 13px;border-radius:999px;font-size:12px;font-weight:700;
  background:rgba(13,20,40,.72);border:1px solid var(--line);color:#CFE0FF;
  backdrop-filter:blur(8px);
}
.guide__index{
  position:absolute;right:20px;bottom:16px;z-index:2;
  font-size:34px;font-weight:900;font-variant-numeric:tabular-nums;
  color:rgba(255,255,255,.22);letter-spacing:-.04em;
}
.guide__body h2{font-size:clamp(21px,2.4vw,28px);font-weight:900;margin-bottom:14px}
.guide__body p{color:var(--text-2)}
.check-list{margin-top:20px;display:grid;gap:12px}
.check-list li{display:flex;gap:10px;align-items:flex-start;color:var(--text);font-size:15px}
.check-list li::before{
  content:"";flex:0 0 auto;width:18px;height:18px;margin-top:6px;border-radius:6px;
  background:linear-gradient(120deg,var(--primary),var(--cyan));
  box-shadow:0 0 12px rgba(34,211,238,.45);
  clip-path:polygon(14% 46%,0 62%,40% 100%,100% 22%,84% 8%,38% 68%);
}
.guide__meta{margin-top:22px;display:flex;flex-wrap:wrap;gap:10px}

/* 标签 / 徽章 */
.tag{
  display:inline-flex;align-items:center;padding:4px 12px;border-radius:999px;
  font-size:12px;color:var(--text-2);border:1px solid var(--line);background:rgba(255,255,255,.04);
}
.tag--primary{color:#BBD4FF;border-color:rgba(46,107,255,.5);background:rgba(46,107,255,.14)}
.tag--amber{color:#FFC79B;border-color:rgba(255,138,61,.5);background:rgba(255,138,61,.13)}
.tag--success{color:#A6F0CE;border-color:rgba(47,217,139,.45);background:rgba(47,217,139,.12)}

/* 图文卡（上下排布，2 列） */
.card-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.icard{
  display:flex;flex-direction:column;border-radius:var(--r-card);
  border:1px solid var(--line-soft);background:var(--panel);
  box-shadow:var(--shadow-card);overflow:hidden;
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.icard:hover{transform:translateY(-3px);border-color:rgba(34,211,238,.35);box-shadow:0 18px 48px rgba(0,0,0,.5)}
.icard__media{aspect-ratio:16/10;overflow:hidden;background:rgba(46,107,255,.08)}
.icard__media img{width:100%;height:100%;object-fit:cover;transition:transform 320ms ease-out}
.icard:hover .icard__media img{transform:scale(1.03)}
.icard__body{padding:24px;display:flex;flex-direction:column;gap:12px;flex:1}
.icard__body h3{font-size:19px;font-weight:800}
.icard__body p{font-size:14.5px;color:var(--text-2);line-height:1.8}
.icard__foot{margin-top:auto;padding-top:14px;border-top:1px solid var(--line-soft);display:flex;align-items:center;justify-content:space-between;gap:12px}

/* FAQ + 侧栏表单 */
.split{display:grid;grid-template-columns:1.55fr 1fr;gap:36px;align-items:start}
.faq{border-top:1px solid var(--line-soft)}
.faq__item{border-bottom:1px solid var(--line-soft)}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  text-align:left;padding:22px 4px;font-size:16.5px;font-weight:700;transition:color var(--t);
}
.faq__q:hover{color:var(--cyan)}
.faq__icon{
  flex:0 0 auto;width:28px;height:28px;border-radius:999px;border:1px solid var(--line);
  position:relative;transition:transform var(--t),border-color var(--t),background var(--t);
}
.faq__icon::before,.faq__icon::after{
  content:"";position:absolute;left:50%;top:50%;background:var(--cyan);border-radius:2px;
  transform:translate(-50%,-50%);
}
.faq__icon::before{width:12px;height:2px}
.faq__icon::after{width:2px;height:12px;transition:transform var(--t),opacity var(--t)}
.faq__item.is-open .faq__icon{border-color:rgba(34,211,238,.6);background:rgba(34,211,238,.1);transform:rotate(180deg)}
.faq__item.is-open .faq__icon::after{transform:translate(-50%,-50%) scaleY(0);opacity:0}
.faq__a{max-height:0;overflow:hidden;transition:max-height 280ms ease-out}
.faq__a p{padding:0 4px 24px;color:var(--text-2);font-size:15px;line-height:1.85;max-width:64ch}

.form-card{
  border-radius:var(--r-card);border:1px solid var(--line);
  background:linear-gradient(180deg,rgba(16,24,51,.95),rgba(13,20,40,.9));
  box-shadow:var(--shadow-card);padding:26px;
  position:sticky;top:104px;
}
.form-card h3{font-size:19px;font-weight:900}
.form-card > p{margin-top:10px;font-size:14px;color:var(--text-2)}
.field{margin-top:16px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px}
.field input,.field textarea{
  width:100%;background:rgba(255,255,255,.04);border:1px solid var(--line);
  border-radius:var(--r-input);padding:12px 14px;font-size:14.5px;
  transition:border-color var(--t),box-shadow var(--t),background var(--t);
}
.field textarea{min-height:104px;resize:vertical}
.field input::placeholder,.field textarea::placeholder{color:#6C7A96}
.field input:focus,.field textarea:focus{
  outline:none;border-color:rgba(34,211,238,.75);
  box-shadow:0 0 0 3px rgba(34,211,238,.18);background:rgba(255,255,255,.06);
}
.field.has-error input,.field.has-error textarea{border-color:var(--danger);box-shadow:0 0 0 3px rgba(255,93,93,.14)}
.field.has-ok input,.field.has-ok textarea{border-color:var(--success)}
.field__msg{font-size:12px;margin-top:6px;color:var(--danger);min-height:16px}
.field.has-ok .field__msg{color:var(--success)}
.form-card .btn{width:100%;margin-top:20px}
.form-note{margin-top:14px;font-size:12.5px;color:#7C8AA5}
.form-alert{
  margin-top:16px;padding:10px 14px;border-radius:var(--r-input);font-size:13px;display:none;
  border:1px solid rgba(47,217,139,.5);background:rgba(47,217,139,.12);color:#A6F0CE;
}
.form-alert.is-error{border-color:rgba(255,93,93,.55);background:rgba(255,93,93,.12);color:#FFC0C0}
.form-alert.is-show{display:block}

/* CTA 条 */
.cta-band{position:relative;overflow:hidden;padding:0}
.cta-inner{
  position:relative;display:flex;flex-wrap:wrap;gap:26px;align-items:center;justify-content:space-between;
  padding:44px 44px;border-radius:24px;border:1px solid var(--line);
  background:linear-gradient(120deg,rgba(16,24,51,.96),rgba(10,16,34,.96));
  box-shadow:var(--shadow-card);overflow:hidden;
}
.cta-inner::before{
  content:"";position:absolute;top:-60%;left:-20%;width:70%;height:220%;
  background:linear-gradient(100deg,transparent 25%,rgba(46,107,255,.4) 52%,rgba(34,211,238,.28) 66%,transparent 84%);
  transform:skewX(-16deg);pointer-events:none;
}
.cta-inner > *{position:relative;z-index:2}
.cta-copy h2{font-size:clamp(22px,2.6vw,30px);font-weight:900}
.cta-copy p{margin-top:10px;color:var(--text-2);max-width:56ch}
.cta-actions{display:flex;flex-wrap:wrap;align-items:center;gap:18px}

/* 分隔细条 */
.rule{height:1px;background:var(--line-soft);margin:0}

/* 页脚 */
.site-footer{
  margin-top:var(--sec);border-top:1px solid var(--line-soft);
  background:linear-gradient(180deg,rgba(9,14,30,.6),rgba(7,12,26,1));
  padding:64px 0 28px;position:relative;z-index:1;
}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:36px}
.footer-brand__name{font-size:18px;font-weight:900}
.footer-brand__sub{font-size:11px;color:var(--text-2);letter-spacing:.16em;margin-top:4px}
.footer-brand p{margin-top:16px;font-size:14px;color:var(--text-2);max-width:40ch}
.social{display:flex;gap:10px;margin-top:18px}
.social a{
  width:36px;height:36px;border-radius:999px;display:grid;place-items:center;
  border:1px solid var(--line);font-size:13px;color:var(--text-2);
  transition:color var(--t),border-color var(--t),transform var(--t);
}
.social a:hover{color:var(--cyan);border-color:rgba(34,211,238,.5);transform:translateY(-2px)}
.site-footer h3{font-size:15px;font-weight:800;margin-bottom:16px}
.footer-list li{margin-bottom:10px}
.footer-list a,.footer-contact li{font-size:14px;color:var(--text-2);transition:color var(--t),padding-left var(--t)}
.footer-list a:hover,.footer-contact a:hover{color:var(--cyan);padding-left:3px}
.footer-contact li{line-height:1.75;margin-bottom:10px}
.footer-contact strong{color:var(--text);font-weight:700}
.footer-bottom{
  margin-top:44px;padding-top:20px;border-top:1px solid var(--line-soft);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:#7C8AA5;
}
.to-top{
  min-height:40px;padding:0 16px;border-radius:999px;border:1px solid var(--line);
  color:var(--text-2);font-size:13px;transition:color var(--t),border-color var(--t),transform var(--t);
}
.to-top:hover{color:var(--cyan);border-color:rgba(34,211,238,.5);transform:translateY(-2px)}

/* 移动抽屉 */
.drawer{
  position:fixed;inset:0;z-index:80;display:none;
  background:rgba(7,12,26,.98);
  padding:88px 24px 32px;flex-direction:column;gap:6px;
}
body.nav-open .drawer{display:flex}
.drawer a.drawer__link{
  display:flex;align-items:center;justify-content:space-between;
  min-height:52px;padding:0 16px;border-radius:14px;
  border:1px solid var(--line-soft);background:#0D1428;font-size:16px;font-weight:700;
}
.drawer a.drawer__link.is-active{border-color:rgba(46,107,255,.6);color:#fff}
.drawer .btn{margin-top:16px;width:100%}
.drawer__close{
  position:absolute;top:20px;right:20px;width:44px;height:44px;border-radius:999px;
  border:1px solid var(--line);color:var(--text);font-size:20px;line-height:1;
}

/* 响应式 */
@media (max-width:1279px){
  .card-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:28px}
  .footer-grid > div:last-child{grid-column:span 3}
}
@media (max-width:1023px){
  .nav__menu{display:none}
  .nav__cta{display:none}
  .nav__toggle{display:block}
  .nav{padding:0 10px 0 18px;gap:12px}
  .guide__row{grid-template-columns:1fr;gap:24px}
  .guide__row--flip .guide__media{order:0}
  .split{grid-template-columns:1fr;gap:28px}
  .form-card{position:static}
  .footer-grid{grid-template-columns:1fr 1fr}
  .footer-grid > div:last-child{grid-column:span 2}
}
@media (max-width:767px){
  :root{--sec:56px}
  .container{padding:0 20px}
  .page-hero{padding:124px 0 52px}
  .stat{flex:1 1 50%;padding:0 16px;margin-bottom:14px}
  .stat:nth-child(3){padding-left:0;border-left:0}
  .card-grid{grid-template-columns:1fr}
  .cta-inner{padding:30px 24px;border-radius:20px}
  .footer-grid{grid-template-columns:1fr;gap:26px}
  .footer-grid > div:last-child{grid-column:auto}
  .footer-bottom{justify-content:flex-start}
}
@media (max-width:479px){
  .btn{width:100%}
  .btn--sm{width:auto}
  .cta-actions{width:100%;flex-direction:column;align-items:stretch;gap:12px}
  .cta-actions .link-arrow{justify-content:center}
  .icard__body{padding:20px}
  .form-card{padding:20px}
  .logo__main{font-size:15.5px}
}

/* roulang page: category2 */
:root{
  --bg:#070C1A;
  --bg-2:#0D1428;
  --bg-3:#111A33;
  --panel:rgba(17,26,51,.72);
  --brand:#2E6BFF;
  --brand-2:#22D3EE;
  --amber:#FF8A3D;
  --ok:#2FD98B;
  --warn:#FF5D5D;
  --text:#E8EEF9;
  --muted:#94A3BE;
  --line:rgba(255,255,255,.10);
  --line-strong:rgba(255,255,255,.18);
  --radius:18px;
  --radius-sm:12px;
  --radius-img:14px;
  --shadow:0 12px 40px rgba(0,0,0,.45);
  --glow:0 0 24px rgba(46,107,255,.55);
  --container:1240px;
  --gap:24px;
  --ease:cubic-bezier(.22,.61,.36,1);
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(255,255,255,.022) 1px,transparent 1px),
    linear-gradient(90deg,rgba(255,255,255,.022) 1px,transparent 1px);
  background-size:56px 56px,56px 56px;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0 0 auto 0;
  height:420px;
  background:linear-gradient(160deg,rgba(46,107,255,.20),rgba(34,211,238,.08) 45%,transparent 72%);
  clip-path:polygon(0 0,100% 0,100% 46%,0 100%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease),transform .2s var(--ease);}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:800;letter-spacing:-.02em;line-height:1.25;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand-2);outline-offset:2px;border-radius:6px;}
::selection{background:rgba(46,107,255,.45);color:#fff;}

.container{width:100%;max-width:var(--container);margin:0 auto;padding:0 32px;position:relative;z-index:1;}
.section{padding:88px 0;}
.section--tight{padding:56px 0;}
.section__head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:36px;flex-wrap:wrap;}
.section__title{font-size:clamp(22px,2.2vw,30px);font-weight:900;}
.section__sub{color:var(--muted);font-size:14px;margin-top:8px;max-width:640px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;letter-spacing:.14em;text-transform:uppercase;
  color:var(--brand-2);border:1px solid rgba(34,211,238,.35);
  background:rgba(34,211,238,.08);border-radius:999px;padding:4px 12px;margin-bottom:16px;
}
.divider{height:1px;background:var(--line);border:0;margin:0;}

/* ============ 导航 ============ */
.site-header{position:sticky;top:0;z-index:90;padding:16px 0 8px;}
.nav{
  max-width:1200px;margin:0 auto;
  display:flex;align-items:center;gap:24px;
  height:68px;padding:0 18px 0 22px;
  border:1px solid var(--line);
  border-radius:999px;
  background:rgba(13,20,40,.55);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  box-shadow:var(--shadow);
  transition:height .24s var(--ease),background .24s var(--ease),box-shadow .24s var(--ease);
}
.site-header.is-scrolled .nav{height:56px;background:rgba(9,14,30,.88);box-shadow:0 16px 42px rgba(0,0,0,.55);}
.logo{display:flex;flex-direction:column;line-height:1.15;flex:0 0 auto;}
.logo__main{font-size:17px;font-weight:900;letter-spacing:-.01em;background:linear-gradient(92deg,#fff,var(--brand-2));-webkit-background-clip:text;background-clip:text;color:transparent;}
.logo__sub{font-size:11px;color:var(--muted);letter-spacing:.08em;}
.nav__menu{display:flex;align-items:center;gap:6px;margin-left:auto;overflow-x:auto;scrollbar-width:none;}
.nav__menu::-webkit-scrollbar{display:none;}
.nav__link{
  position:relative;white-space:nowrap;font-size:14px;color:var(--muted);
  padding:8px 12px;border-radius:999px;transition:color .2s var(--ease),background .2s var(--ease);
}
.nav__link:hover{color:var(--text);background:rgba(255,255,255,.06);}
.nav__link.is-active{color:var(--text);}
.nav__link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--brand-2));
}
.nav__right{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav__toggle{
  display:none;width:44px;height:44px;border-radius:999px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);cursor:pointer;position:relative;
}
.nav__toggle span,.nav__toggle span::before,.nav__toggle span::after{
  position:absolute;left:50%;width:18px;height:2px;border-radius:2px;background:var(--text);
  transform:translateX(-50%);transition:transform .2s var(--ease),opacity .2s var(--ease);
}
.nav__toggle span{top:21px;}
.nav__toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav__toggle span::after{content:"";top:6px;left:0;transform:none;}
.nav__toggle[aria-expanded="true"] span{background:transparent;}
.nav__toggle[aria-expanded="true"] span::before{transform:rotate(45deg);top:0;}
.nav__toggle[aria-expanded="true"] span::after{transform:rotate(-45deg);top:0;}

.drawer{
  position:fixed;inset:0;z-index:120;display:none;
  background:var(--bg-2);border-left:1px solid var(--line);padding:24px 22px;
}
.drawer.is-open{display:block;}
.drawer__head{display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;}
.drawer__close{width:44px;height:44px;border-radius:999px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--text);cursor:pointer;font-size:20px;}
.drawer__link{display:flex;align-items:center;height:52px;border-bottom:1px solid var(--line);color:var(--muted);font-size:16px;}
.drawer__link.is-active{color:var(--text);font-weight:700;}
.drawer__cta{margin-top:24px;display:block;text-align:center;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  border-radius:999px;border:1px solid transparent;cursor:pointer;
  font-size:14px;font-weight:700;padding:0 22px;height:46px;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),border-color .2s var(--ease),filter .2s var(--ease);
}
.btn--primary{background:linear-gradient(96deg,var(--brand),var(--brand-2));color:#04101f;box-shadow:var(--glow);}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 0 34px rgba(46,107,255,.75);filter:brightness(1.06);}
.btn--primary:active{transform:translateY(1px);}
.btn--ghost{background:rgba(255,255,255,.04);border-color:var(--line-strong);color:var(--text);}
.btn--ghost:hover{transform:translateY(-2px);border-color:rgba(34,211,238,.55);background:rgba(34,211,238,.10);}
.btn--ghost:active{transform:translateY(1px);}
.btn--sm{height:38px;font-size:13px;padding:0 16px;}
.btn--lg{height:54px;font-size:15px;padding:0 30px;}
.btn--link{height:auto;padding:0;background:none;border:0;color:var(--brand-2);font-weight:600;gap:6px;}
.btn--link:hover{color:#7ff0ff;}
.btn--link .arrow{transition:transform .2s var(--ease);}
.btn--link:hover .arrow{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none;}

/* ============ 页面头部 / 面包屑 ============ */
.page-hero{
  position:relative;margin-top:24px;padding:56px 0 52px;
  background-image:linear-gradient(90deg,rgba(7,12,26,.94) 12%,rgba(7,12,26,.62) 100%),url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
.crumb{display:flex;gap:10px;align-items:center;font-size:13px;color:var(--muted);margin-bottom:18px;flex-wrap:wrap;}
.crumb a:hover{color:var(--brand-2);}
.crumb span.sep{opacity:.5;}
.page-hero__title{font-size:clamp(30px,4.4vw,50px);font-weight:900;max-width:820px;}
.page-hero__title em{font-style:normal;background:linear-gradient(92deg,var(--brand-2),#9fe9ff);-webkit-background-clip:text;background-clip:text;color:transparent;}
.page-hero__desc{margin-top:16px;color:var(--muted);font-size:16px;max-width:700px;}
.hero-facts{display:flex;flex-wrap:wrap;gap:36px;margin-top:32px;padding-top:24px;border-top:1px solid var(--line);}
.hero-facts div{min-width:120px;}
.hero-facts strong{display:block;font-size:26px;font-weight:900;font-variant-numeric:tabular-nums;color:#fff;}
.hero-facts span{font-size:13px;color:var(--muted);}

/* ============ 分类主体：左侧导航 + 行式列表 ============ */
.cat-layout{display:grid;grid-template-columns:240px 1fr;gap:40px;align-items:start;}
.side-nav{
  position:sticky;top:104px;
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:22px 20px;box-shadow:var(--shadow);
}
.side-nav__title{font-size:13px;color:var(--muted);letter-spacing:.12em;margin-bottom:14px;}
.side-nav__list li+li{margin-top:4px;}
.side-nav__link{
  display:flex;align-items:center;justify-content:space-between;gap:10px;
  padding:10px 12px;border-radius:var(--radius-sm);font-size:14px;color:var(--muted);
  border:1px solid transparent;
}
.side-nav__link:hover{color:var(--text);background:rgba(255,255,255,.05);border-color:var(--line);}
.side-nav__link.is-active{color:#fff;background:linear-gradient(96deg,rgba(46,107,255,.28),rgba(34,211,238,.14));border-color:rgba(34,211,238,.35);}
.side-nav__link i{font-style:normal;font-size:12px;color:var(--brand-2);}
.side-nav__block{margin-top:24px;padding-top:20px;border-top:1px solid var(--line);}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px;}
.tag{
  display:inline-flex;align-items:center;height:28px;padding:0 12px;border-radius:999px;
  font-size:12px;color:var(--muted);border:1px solid var(--line);background:rgba(255,255,255,.03);
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.tag:hover{color:var(--text);border-color:rgba(34,211,238,.5);background:rgba(34,211,238,.08);}
.tag--brand{color:#cfe0ff;border-color:rgba(46,107,255,.5);background:rgba(46,107,255,.14);}
.help-card{
  margin-top:24px;padding:18px;border-radius:var(--radius-sm);
  background:linear-gradient(150deg,rgba(255,138,61,.14),rgba(255,138,61,.03));
  border:1px solid rgba(255,138,61,.32);
}
.help-card strong{display:block;font-size:14px;color:#ffd7b8;margin-bottom:6px;}
.help-card p{font-size:13px;color:var(--muted);line-height:1.7;}

.list-head{display:flex;align-items:center;justify-content:space-between;gap:16px;margin-bottom:18px;flex-wrap:wrap;}
.list-head h2{font-size:20px;font-weight:800;}
.list-head .count{font-size:13px;color:var(--muted);font-variant-numeric:tabular-nums;}
.mobile-tabs{display:none;gap:10px;overflow-x:auto;padding-bottom:10px;margin-bottom:16px;scrollbar-width:none;}
.mobile-tabs::-webkit-scrollbar{display:none;}
.mobile-tabs a{
  flex:0 0 auto;padding:8px 14px;border-radius:999px;font-size:13px;color:var(--muted);
  border:1px solid var(--line);background:rgba(255,255,255,.03);white-space:nowrap;
}
.mobile-tabs a.is-active{color:#fff;border-color:rgba(34,211,238,.5);background:rgba(34,211,238,.12);}

.row-list{border:1px solid var(--line);border-radius:var(--radius);background:var(--panel);box-shadow:var(--shadow);overflow:hidden;}
.row-item{transition:background .2s var(--ease);}
.row-item a{
  display:grid;grid-template-columns:52px 96px 1fr 28px;gap:20px;align-items:center;
  padding:20px 24px;
}
.row-item:hover{background:rgba(46,107,255,.10);}
.row-item__no{
  font-family:"Inter",ui-monospace,SFMono-Regular,Menlo,monospace;
  font-variant-numeric:tabular-nums;font-size:20px;font-weight:800;color:rgba(46,107,255,.55);
}
.row-item__thumb{
  width:96px;height:96px;border-radius:var(--radius-img);overflow:hidden;
  border:1px solid var(--line);background:rgba(46,107,255,.08);flex:0 0 auto;
}
.row-item__thumb img{width:100%;height:100%;object-fit:cover;transition:transform .3s var(--ease);}
.row-item:hover .row-item__thumb img{transform:scale(1.06);}
.row-item__title{font-size:17px;font-weight:800;margin-bottom:6px;}
.row-item__desc{
  font-size:14px;color:var(--muted);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.row-item__meta{display:flex;align-items:center;gap:10px;margin-top:12px;flex-wrap:wrap;font-size:12px;color:var(--muted);}
.badge{
  display:inline-flex;align-items:center;height:24px;padding:0 10px;border-radius:999px;
  font-size:12px;border:1px solid var(--line);background:rgba(255,255,255,.04);color:var(--muted);
}
.badge--brand{color:#cfe0ff;border-color:rgba(46,107,255,.5);background:rgba(46,107,255,.16);}
.badge--amber{color:#ffd0ab;border-color:rgba(255,138,61,.5);background:rgba(255,138,61,.14);}
.badge--ok{color:#b7f5da;border-color:rgba(47,217,139,.45);background:rgba(47,217,139,.14);}
.row-item__arrow{font-size:18px;color:var(--muted);transition:transform .2s var(--ease),color .2s var(--ease);text-align:right;}
.row-item:hover .row-item__arrow{transform:translateX(4px);color:var(--brand-2);}
.row-divider{height:1px;background:var(--line);}

.pager{display:flex;align-items:center;gap:10px;margin-top:32px;flex-wrap:wrap;justify-content:center;}
.pager a{
  min-width:44px;height:44px;display:inline-flex;align-items:center;justify-content:center;
  padding:0 16px;border-radius:999px;border:1px solid var(--line);color:var(--muted);font-size:14px;
  transition:color .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.pager a:hover{color:var(--text);border-color:rgba(34,211,238,.5);}
.pager a.is-current{background:linear-gradient(96deg,var(--brand),var(--brand-2));color:#04101f;border-color:transparent;font-weight:800;}

/* ============ 流程步骤 ============ */
.steps{display:grid;grid-template-columns:repeat(4,1fr);gap:var(--gap);}
.step{
  background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:26px 22px;box-shadow:var(--shadow);transition:transform .2s var(--ease),border-color .2s var(--ease);
}
.step:hover{transform:translateY(-3px);border-color:rgba(34,211,238,.4);}
.step__no{
  font-family:"Inter",ui-monospace,monospace;font-size:13px;color:var(--brand-2);
  letter-spacing:.16em;margin-bottom:14px;
}
.step h3{font-size:17px;margin-bottom:10px;}
.step p{font-size:14px;color:var(--muted);}

/* ============ 保障条 ============ */
.assure{
  display:grid;grid-template-columns:repeat(4,1fr);
  border:1px solid var(--line);border-radius:var(--radius);
  background:var(--panel);box-shadow:var(--shadow);overflow:hidden;
}
.assure__item{padding:26px 24px;border-left:1px solid var(--line);}
.assure__item:first-child{border-left:0;}
.assure__item span{display:block;font-size:18px;margin-bottom:10px;color:var(--brand-2);}
.assure__item strong{display:block;font-size:15px;margin-bottom:6px;}
.assure__item p{font-size:13px;color:var(--muted);line-height:1.7;}

/* ============ FAQ ============ */
.faq{display:grid;grid-template-columns:1fr 1fr;gap:0 40px;}
.faq__item{border-bottom:1px solid var(--line);}
.faq__q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;
  background:none;border:0;cursor:pointer;text-align:left;
  padding:22px 0;font-size:16px;font-weight:700;color:var(--text);
}
.faq__q:hover{color:#bfe4ff;}
.faq__icon{
  flex:0 0 auto;width:24px;height:24px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;font-size:14px;color:var(--brand-2);
  transition:transform .24s var(--ease),background .24s var(--ease);
}
.faq__item.is-open .faq__icon{transform:rotate(45deg);background:rgba(34,211,238,.16);}
.faq__a{max-height:0;overflow:hidden;transition:max-height .28s var(--ease);}
.faq__a p{font-size:14px;color:var(--muted);line-height:1.8;padding:0 0 22px;}

/* ============ CTA 大条 ============ */
.cta-band{
  position:relative;border-radius:24px;border:1px solid var(--line);overflow:hidden;
  background:linear-gradient(120deg,rgba(46,107,255,.22),rgba(13,20,40,.9) 55%,rgba(255,138,61,.14));
  box-shadow:var(--shadow);
}
.cta-band::after{
  content:"";position:absolute;top:-60%;left:-10%;width:60%;height:220%;
  background:linear-gradient(90deg,transparent,rgba(255,255,255,.10),transparent);
  transform:rotate(18deg);pointer-events:none;
}
.cta-band__inner{
  position:relative;z-index:1;display:flex;align-items:center;justify-content:space-between;gap:32px;
  padding:44px 40px;flex-wrap:wrap;
}
.cta-band h2{font-size:clamp(20px,2.4vw,28px);margin-bottom:10px;}
.cta-band p{color:var(--muted);font-size:14px;max-width:520px;}
.cta-band__actions{display:flex;align-items:center;gap:20px;flex-wrap:wrap;}

/* ============ 页脚 ============ */
.site-footer{border-top:1px solid var(--line);background:rgba(9,14,30,.85);margin-top:88px;padding:72px 0 28px;position:relative;z-index:1;}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px;}
.footer-brand__name{font-size:18px;font-weight:900;}
.footer-brand__sub{font-size:12px;color:var(--brand-2);letter-spacing:.08em;margin-bottom:14px;}
.footer-brand p{font-size:13px;color:var(--muted);line-height:1.8;max-width:340px;}
.social{display:flex;gap:10px;margin-top:18px;}
.social a{
  width:38px;height:38px;border-radius:999px;border:1px solid var(--line);
  display:inline-flex;align-items:center;justify-content:center;font-size:13px;color:var(--muted);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.social a:hover{color:var(--brand-2);border-color:rgba(34,211,238,.5);transform:translateY(-2px);}
.site-footer h3{font-size:14px;margin-bottom:16px;color:#fff;}
.footer-list li+li{margin-top:10px;}
.footer-list a{font-size:13px;color:var(--muted);display:inline-block;}
.footer-list a:hover{color:var(--brand-2);transform:translateX(3px);}
.footer-contact li{font-size:13px;color:var(--muted);line-height:1.8;margin-bottom:10px;}
.footer-contact strong{color:#cdd9ee;font-weight:600;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
}
.footer-bottom p{font-size:13px;color:var(--muted);}
.to-top{
  height:40px;padding:0 18px;border-radius:999px;border:1px solid var(--line);
  background:rgba(255,255,255,.04);color:var(--muted);cursor:pointer;font-size:13px;
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.to-top:hover{color:var(--brand-2);border-color:rgba(34,211,238,.5);transform:translateY(-2px);}

/* ============ 响应式 ============ */
@media (max-width:1279px){
  .container{padding:0 28px;}
  .steps{grid-template-columns:repeat(2,1fr);}
}
@media (max-width:1023px){
  .nav__menu{display:none;}
  .nav__toggle{display:block;}
  .nav__cta{display:none;}
  .cat-layout{grid-template-columns:1fr;gap:24px;}
  .side-nav{position:static;padding:18px;}
  .side-nav__block{margin-top:18px;}
  .assure{grid-template-columns:repeat(2,1fr);}
  .assure__item:nth-child(3){border-left:0;}
  .assure__item:nth-child(n+3){border-top:1px solid var(--line);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:767px){
  .container{padding:0 20px;}
  .section{padding:56px 0;}
  .site-header{padding:12px 0 6px;}
  .nav{height:60px;padding:0 14px 0 18px;gap:14px;}
  .logo__main{font-size:15px;}
  .logo__sub{font-size:10px;}
  .page-hero{padding:36px 0 34px;margin-top:14px;}
  .page-hero__desc{font-size:15px;}
  .hero-facts{gap:20px;overflow-x:auto;flex-wrap:nowrap;padding-bottom:4px;}
  .hero-facts div{min-width:96px;flex:0 0 auto;}
  .hero-facts strong{font-size:22px;}
  .row-item a{grid-template-columns:34px 72px 1fr;gap:14px;padding:16px;}
  .row-item__arrow{display:none;}
  .row-item__thumb{width:72px;height:72px;}
  .row-item__title{font-size:15.5px;}
  .row-item__desc{-webkit-line-clamp:2;font-size:13px;}
  .row-item__no{font-size:16px;}
  .faq{grid-template-columns:1fr;}
  .steps{grid-template-columns:1fr;}
  .cta-band__inner{padding:30px 22px;}
  .cta-band__actions{width:100%;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .site-footer{padding:52px 0 24px;margin-top:56px;}
  .social a{width:44px;height:44px;}
  .side-nav__list{display:flex;gap:10px;overflow-x:auto;padding-bottom:6px;scrollbar-width:none;}
  .side-nav__list::-webkit-scrollbar{display:none;}
  .side-nav__list li+li{margin-top:0;}
  .side-nav__link{white-space:nowrap;}
}
@media (max-width:520px){
  .btn{width:100%;}
  .btn--link{width:auto;}
  .nav__right{gap:8px;}
  .assure{grid-template-columns:1fr;}
  .assure__item{border-left:0;border-top:1px solid var(--line);}
  .assure__item:first-child{border-top:0;}
  .pager a{min-width:44px;height:44px;padding:0 12px;}
}