/* roulang page: index */
:root{
  --bg:#071018; --bg-2:#0B1B28; --panel:#102638;
  --cyan:#14C8D2; --amber:#F2A93B; --green:#35D07F; --red:#FF6B57;
  --text:#EAF6FF; --text-2:#A8C2D6; --text-3:#6F8FA6;
  --glass:rgba(16,38,56,.58); --glass-2:rgba(16,38,56,.78);
  --border:rgba(129,224,255,.16); --border-strong:rgba(129,224,255,.36);
  --glow:0 0 24px rgba(20,200,210,.28);
  --shadow:0 18px 40px rgba(0,8,20,.35);
  --r-lg:18px; --r-md:12px; --r-pill:999px;
  --sec:96px;
}
*,*::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","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;line-height:1.9;font-weight:400;
  -webkit-font-smoothing:antialiased;overflow-x:hidden;
}
body.no-scroll{overflow:hidden}
img{max-width:100%;display:block;border:0}
a{color:inherit;text-decoration:none;transition:color .18s ease-out,background-color .18s ease-out,border-color .18s ease-out}
a:hover{color:var(--cyan)}
h1,h2,h3,h4{line-height:1.25;margin:0;font-weight:700;letter-spacing:.2px}
p{margin:0 0 1.1em}
p:last-child{margin-bottom:0}
ul,ol{margin:0;padding:0;list-style:none}
button,input,select,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
::selection{background:rgba(20,200,210,.32)}

.container{width:min(1240px,100%);margin:0 auto;padding:0 24px}
.section{padding:var(--sec) 0}
.section--tight{padding:72px 0}
.section--alt{background:linear-gradient(180deg,rgba(11,27,40,.9),rgba(7,16,24,1))}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:13px;letter-spacing:2px;
  color:var(--amber);text-transform:uppercase;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--amber);opacity:.8}
.section-head{margin-bottom:44px;max-width:760px}
.section-head h2{font-size:clamp(26px,3vw,38px);position:relative;padding-left:16px}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--cyan),rgba(20,200,210,.15));box-shadow:var(--glow);
}
.section-head p{margin-top:16px;color:var(--text-2);font-size:16.5px}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center}
.section-head--center h2{padding-left:0}
.section-head--center h2::before{display:none}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--r-pill);border:1px solid transparent;
  font-size:15.5px;font-weight:600;cursor:pointer;white-space:nowrap;
  transition:transform .18s ease-out,box-shadow .18s ease-out,background-color .18s ease-out,border-color .18s ease-out,color .18s ease-out;
}
.btn-primary{background:var(--cyan);color:#04141a;box-shadow:var(--glow)}
.btn-primary:hover{transform:translateY(-2px);color:#04141a;box-shadow:0 0 30px rgba(20,200,210,.46)}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 14px rgba(20,200,210,.3)}
.btn-ghost{background:rgba(16,38,56,.5);border-color:var(--border-strong);color:var(--text);backdrop-filter:blur(12px)}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--cyan);color:var(--text);box-shadow:0 12px 26px rgba(0,8,20,.4)}
.btn-amber{background:rgba(242,169,59,.14);border-color:rgba(242,169,59,.5);color:var(--amber)}
.btn-amber:hover{background:rgba(242,169,59,.22);color:var(--amber);transform:translateY(-2px)}
.btn-link{background:none;padding:6px 0;color:var(--cyan);font-weight:600}
.btn-link::after{content:"→";margin-left:6px;transition:transform .18s ease-out}
.btn-link:hover{color:var(--amber)}
.btn-link:hover::after{transform:translateX(4px)}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none}
.btn.is-loading{pointer-events:none;opacity:.75}

/* ---------- badges ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;padding:4px 12px;border-radius:var(--r-pill);
  font-size:12px;line-height:1.7;border:1px solid var(--border-strong);color:var(--cyan);
  background:rgba(20,200,210,.08);
}
.badge--amber{color:var(--amber);border-color:rgba(242,169,59,.4);background:rgba(242,169,59,.1)}
.badge--green{color:var(--green);border-color:rgba(53,208,127,.4);background:rgba(53,208,127,.1)}
.badge--muted{color:var(--text-3);border-color:rgba(111,143,166,.35);background:rgba(111,143,166,.08)}

/* ---------- header / nav ---------- */
.site-header{position:fixed;left:0;right:0;top:16px;z-index:90}
.nav-shell{
  width:min(1180px,calc(100% - 32px));margin:0 auto;height:68px;
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:0 14px 0 20px;border-radius:var(--r-pill);
  background:rgba(11,27,40,.74);border:1px solid var(--border);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:0 18px 40px rgba(0,8,20,.35);
}
.brand{display:flex;align-items:center;gap:11px;font-size:19px;font-weight:700;letter-spacing:.5px;flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(20,200,210,.95),rgba(20,200,210,.22));
  box-shadow:var(--glow);color:#04141a;
}
.brand-mark svg{width:20px;height:20px}
.brand-text small{display:block;font-size:11px;font-weight:400;color:var(--text-3);letter-spacing:1.6px;line-height:1.4}
.nav-links{display:flex;align-items:center;gap:2px;flex:1 1 auto;justify-content:center}
.nav-links a{
  position:relative;padding:9px 13px;border-radius:var(--r-pill);font-size:14.5px;color:var(--text-2);
  white-space:nowrap;
}
.nav-links a:hover{color:var(--text);background:rgba(20,200,210,.1)}
.nav-links a.is-active{color:var(--text)}
.nav-links a.is-active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:1px;
  width:18px;height:2px;border-radius:2px;background:var(--cyan);box-shadow:var(--glow);
}
.nav-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-cta .btn{padding:10px 20px;font-size:14.5px}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--border);
  background:rgba(16,38,56,.6);cursor:pointer;place-items:center;
}
.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}
@media (max-width:1080px){
  .nav-links{
    position:fixed;left:16px;right:16px;top:92px;flex-direction:column;align-items:stretch;gap:4px;
    padding:14px;border-radius:20px;background:var(--glass-2);border:1px solid var(--border);
    backdrop-filter:blur(18px);box-shadow:var(--shadow);
    opacity:0;transform:translateY(-12px);pointer-events:none;transition:opacity .2s ease-out,transform .2s ease-out;
    max-height:calc(100vh - 120px);overflow-y:auto;
  }
  .nav-links.is-open{opacity:1;transform:translateY(0);pointer-events:auto}
  .nav-links a{padding:12px 14px;font-size:15px}
  .nav-links a.is-active{background:rgba(20,200,210,.12)}
  .nav-links a.is-active::after{display:none}
  .nav-toggle{display:grid}
  .nav-cta .btn{display:none}
}

/* ---------- hero ---------- */
.hero{
  position:relative;min-height:76vh;display:flex;align-items:center;
  padding:150px 0 96px;
  background-image:linear-gradient(115deg,rgba(7,16,24,.94) 12%,rgba(7,16,24,.78) 52%,rgba(7,16,24,.9) 100%),url('/assets/images/backpic/back-1.png');
  background-size:cover;background-position:center;
  overflow:hidden;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;opacity:.07;
  background-image:linear-gradient(90deg,rgba(129,224,255,.9) 1px,transparent 1px),linear-gradient(180deg,rgba(129,224,255,.9) 1px,transparent 1px);
  background-size:96px 96px;
  mask-image:radial-gradient(circle at 70% 40%,#000 10%,transparent 72%);
  -webkit-mask-image:radial-gradient(circle at 70% 40%,#000 10%,transparent 72%);
}
.hero .container{position:relative;z-index:2}
.hero-title{font-size:clamp(30px,4.3vw,54px);letter-spacing:.5px;margin-bottom:22px}
.hero-title em{font-style:normal;color:var(--cyan);text-shadow:0 0 30px rgba(20,200,210,.35)}
.hero-sub{color:var(--text-2);font-size:17.5px;max-width:600px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;color:var(--text-3);font-size:13.5px}
.hero-meta span{display:inline-flex;align-items:center;gap:7px}
.hero-meta i{width:6px;height:6px;border-radius:50%;background:var(--green);display:inline-block;box-shadow:0 0 10px rgba(53,208,127,.7)}
.hero-panel{
  background:var(--glass);border:1px solid var(--border);border-radius:var(--r-lg);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow);padding:28px;margin-top:8px;
}
.hero-panel h2{font-size:17px;color:var(--text-2);font-weight:600;letter-spacing:.6px;margin-bottom:20px}
.stat-row{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;padding:16px 0;border-bottom:1px dashed rgba(129,224,255,.16)}
.stat-row:last-of-type{border-bottom:0}
.stat-num{font-size:30px;font-weight:700;color:var(--cyan);letter-spacing:.5px;line-height:1.2;text-shadow:0 0 26px rgba(20,200,210,.3)}
.stat-num.amber{color:var(--amber);text-shadow:0 0 26px rgba(242,169,59,.3)}
.stat-num.green{color:var(--green);text-shadow:0 0 26px rgba(53,208,127,.3)}
.stat-label{color:var(--text-3);font-size:13.5px;text-align:right}
.hero-quick{display:grid;grid-template-columns:repeat(3,1fr);gap:10px;margin-top:22px}
.hero-quick a{
  display:block;text-align:center;padding:12px 8px;border-radius:var(--r-md);
  background:rgba(20,200,210,.08);border:1px solid var(--border);font-size:13.5px;color:var(--text-2);
}
.hero-quick a:hover{background:rgba(20,200,210,.16);color:var(--text);border-color:var(--border-strong)}
@media (max-width:1023px){
  .hero{padding:132px 0 72px;min-height:auto}
  .hero-panel{margin-top:44px}
}
@media (max-width:520px){
  .hero-quick{grid-template-columns:1fr 1fr}
  .hero-actions .btn{width:100%}
}

/* ---------- cards ---------- */
.card{
  background:var(--glass);border:1px solid var(--border);border-radius:var(--r-lg);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);overflow:hidden;height:100%;
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.card:hover{transform:translateY(-4px);border-color:var(--border-strong);box-shadow:0 24px 50px rgba(0,8,20,.5)}
.card-media{position:relative;aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease-out}
.card:hover .card-media img{transform:scale(1.04)}
.card-media .badge{position:absolute;left:14px;top:14px;background:rgba(7,16,24,.72);backdrop-filter:blur(8px)}
.card-body{padding:22px 24px 24px}
.card-body h3{font-size:20px;margin-bottom:12px}
.card-body h3 a:hover{color:var(--cyan)}
.card-text{color:var(--text-2);font-size:15px}
.card-foot{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-top:18px;padding-top:16px;border-top:1px solid rgba(129,224,255,.1);color:var(--text-3);font-size:13px}

.featured-large .card-media{aspect-ratio:16/9}
.featured-large .card-body h3{font-size:26px}
.featured-side{display:grid;gap:24px;height:100%}
.featured-side .card-media{aspect-ratio:16/9}
.featured-side .card-body{padding:18px 20px 20px}
.featured-side .card-body h3{font-size:17px;margin-bottom:8px}
.featured-side .card-text{font-size:14px}
.featured-wide{display:flex;align-items:stretch;gap:0}
.featured-wide .card-media{flex:0 0 40%;aspect-ratio:auto;min-height:190px}
.featured-wide .card-body{flex:1 1 auto;display:flex;flex-direction:column;justify-content:center}
@media (max-width:1023px){
  .featured-wide{flex-direction:column}
  .featured-wide .card-media{flex:none;aspect-ratio:16/9;min-height:0}
  .featured-side{margin-top:24px}
}

/* ---------- story / collage ---------- */
.story-copy h2{font-size:clamp(26px,3vw,38px);margin-bottom:20px}
.story-copy h2 em{font-style:normal;color:var(--cyan)}
.story-copy p{color:var(--text-2);font-size:16.5px}
.story-points{margin-top:28px;display:grid;gap:12px}
.story-points li{
  display:flex;gap:12px;align-items:flex-start;padding:14px 18px;border-radius:var(--r-md);
  background:rgba(16,38,56,.4);border:1px solid rgba(129,224,255,.1);font-size:15.5px;color:var(--text-2);
}
.story-points li strong{color:var(--text);font-weight:600}
.story-points li span.dot{
  flex:0 0 auto;width:22px;height:22px;border-radius:50%;margin-top:4px;
  display:grid;place-items:center;font-size:12px;font-weight:700;color:#04141a;background:var(--cyan);
}
.collage{display:grid;grid-template-columns:1fr 1fr;gap:18px}
.collage-item{
  position:relative;border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--border);
  background:var(--bg-2);box-shadow:var(--shadow);min-height:150px;
}
.collage-item img{width:100%;height:100%;object-fit:cover;opacity:.78;transition:transform .4s ease-out,opacity .3s ease-out}
.collage-item:hover img{transform:scale(1.05);opacity:.95}
.collage-item span{
  position:absolute;left:14px;bottom:12px;right:14px;font-size:13.5px;color:var(--text);
  text-shadow:0 2px 10px rgba(0,0,0,.8);
}
.collage-item:nth-child(2){transform:translateY(26px)}
.collage-item:nth-child(3){transform:translateY(-18px)}
@media (max-width:1023px){
  .collage{margin-top:34px}
  .collage-item:nth-child(2),.collage-item:nth-child(3){transform:none}
}
@media (max-width:520px){.collage{grid-template-columns:1fr}}

/* ---------- category entries ---------- */
.cat-card{
  display:block;height:100%;padding:26px 24px;border-radius:var(--r-lg);
  background:var(--glass);border:1px solid var(--border);backdrop-filter:blur(14px);
  box-shadow:var(--shadow);transition:transform .2s ease-out,border-color .2s ease-out;
}
.cat-card:hover{transform:translateY(-4px);border-color:var(--border-strong);color:var(--text)}
.cat-icon{
  width:46px;height:46px;border-radius:14px;display:grid;place-items:center;margin-bottom:18px;
  background:rgba(20,200,210,.12);border:1px solid rgba(20,200,210,.3);color:var(--cyan);
}
.cat-card h3{font-size:19px;margin-bottom:10px}
.cat-card p{color:var(--text-2);font-size:14.5px;margin-bottom:16px}
.cat-card .more{color:var(--cyan);font-size:14px;font-weight:600}
.cat-card .more::after{content:"→";margin-left:6px;display:inline-block;transition:transform .18s ease-out}
.cat-card:hover .more::after{transform:translateX(4px)}

/* ---------- news list (CMS) ---------- */
.news-card{
  display:flex;flex-direction:column;height:100%;border-radius:var(--r-lg);overflow:hidden;
  background:var(--glass);border:1px solid var(--border);box-shadow:var(--shadow);
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.news-card:hover{transform:translateY(-4px);border-color:var(--border-strong)}
.news-cover{width:100%;aspect-ratio:16/9;object-fit:cover;background:var(--bg-2)}
.news-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1 1 auto}
.news-body h3{font-size:17.5px;margin:12px 0 10px}
.news-body h3 a:hover{color:var(--cyan)}
.news-body p{color:var(--text-2);font-size:14.5px;flex:1 1 auto}
.news-foot{display:flex;align-items:center;justify-content:space-between;gap:10px;margin-top:16px;padding-top:14px;border-top:1px solid rgba(129,224,255,.1);font-size:13px;color:var(--text-3)}
.empty-state{
  text-align:center;padding:56px 24px;border-radius:var(--r-lg);
  background:rgba(16,38,56,.42);border:1px dashed rgba(129,224,255,.24);color:var(--text-2);
}
.empty-state svg{width:38px;height:38px;color:var(--text-3);margin-bottom:14px}
.empty-state a{color:var(--cyan);font-weight:600}

/* ---------- trust ---------- */
.metrics{display:grid;grid-template-columns:repeat(4,1fr);gap:18px;margin-bottom:40px}
.metric{
  padding:24px 22px;border-radius:var(--r-lg);background:rgba(16,38,56,.5);
  border:1px solid var(--border);text-align:left;
}
.metric b{display:block;font-size:30px;color:var(--cyan);line-height:1.2;letter-spacing:.5px}
.metric span{display:block;margin-top:8px;color:var(--text-3);font-size:14px}
.metric:nth-child(2) b{color:var(--amber)}
.metric:nth-child(3) b{color:var(--green)}
.metric:nth-child(4) b{color:var(--cyan)}
.quote-card{padding:28px;border-radius:var(--r-lg);background:var(--glass);border:1px solid var(--border);height:100%;box-shadow:var(--shadow)}
.quote-card blockquote{margin:0;color:var(--text-2);font-size:15.5px;line-height:1.9}
.quote-card blockquote::before{content:"“";display:block;font-size:44px;line-height:.6;color:var(--cyan);opacity:.5;margin-bottom:14px}
.quote-meta{margin-top:20px;padding-top:16px;border-top:1px solid rgba(129,224,255,.12);display:flex;align-items:center;gap:12px;font-size:13.5px;color:var(--text-3)}
.quote-meta img{width:42px;height:42px;border-radius:50%;object-fit:cover}
@media (max-width:900px){.metrics{grid-template-columns:1fr 1fr}}
@media (max-width:520px){.metrics{grid-template-columns:1fr}}

/* ---------- faq ---------- */
.faq-wrap .accordion{border:0;background:transparent}
.faq-wrap .accordion-item{
  border:1px solid var(--border);border-radius:var(--r-md);background:rgba(16,38,56,.42);
  margin-bottom:14px;overflow:hidden;
}
.faq-wrap .accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:20px 22px;font-size:16.5px;font-weight:600;color:var(--text);background:transparent;border:0;
  position:relative;
}
.faq-wrap .accordion-title::before{
  content:"";position:absolute;left:0;top:16px;bottom:16px;width:3px;border-radius:3px;
  background:transparent;transition:background-color .2s ease-out;
}
.faq-wrap .accordion-item.is-active .accordion-title::before{background:var(--cyan);box-shadow:var(--glow)}
.faq-wrap .accordion-title::after{
  content:"+";font-size:22px;font-weight:400;color:var(--cyan);line-height:1;flex:0 0 auto;
}
.faq-wrap .accordion-item.is-active .accordion-title::after{content:"−"}
.faq-wrap .accordion-title:hover{color:var(--cyan)}
.faq-wrap .accordion-content{padding:0 22px 22px;color:var(--text-2);font-size:15.5px;border:0;background:transparent}

/* ---------- cta band ---------- */
.cta-band{
  border-radius:26px;padding:48px 44px;position:relative;overflow:hidden;
  background-image:linear-gradient(100deg,rgba(7,16,24,.92),rgba(11,27,40,.78)),url('/assets/images/backpic/back-3.png');
  background-size:cover;background-position:center;
  border:1px solid var(--border-strong);box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(24px,2.8vw,34px);margin-bottom:16px}
.cta-band p{color:var(--text-2);max-width:640px}
.cta-form{display:flex;gap:12px;flex-wrap:wrap;margin-top:26px}
.cta-form input{
  flex:1 1 260px;min-width:0;padding:14px 18px;border-radius:var(--r-pill);
  background:rgba(7,16,24,.62);border:1px solid var(--border);color:var(--text);
  transition:border-color .18s ease-out,box-shadow .18s ease-out;
}
.cta-form input::placeholder{color:var(--text-3)}
.cta-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(20,200,210,.16)}
.form-note{margin-top:14px;font-size:13px;color:var(--text-3)}
.form-status{margin-top:12px;font-size:14px;display:none}
.form-status.is-ok{display:block;color:var(--green)}
.form-status.is-error{display:block;color:var(--red)}
@media (max-width:640px){
  .cta-band{padding:34px 22px;border-radius:20px}
  .cta-form .btn{width:100%}
}

/* ---------- footer ---------- */
.site-footer{margin-top:var(--sec);border-top:1px solid rgba(129,224,255,.14);background:rgba(11,27,40,.72);padding:64px 0 28px}
.footer-brand{display:flex;align-items:center;gap:12px;font-size:20px;font-weight:700;margin-bottom:16px}
.footer-desc{color:var(--text-2);font-size:14.5px;max-width:360px}
.footer-col h4{font-size:15px;color:var(--text);margin-bottom:18px;letter-spacing:.6px}
.footer-col ul{display:grid;gap:11px}
.footer-col a,.footer-col li{color:var(--text-2);font-size:14.5px}
.footer-col a:hover{color:var(--cyan)}
.footer-contact li{color:var(--text-2);font-size:14.5px}
.footer-contact b{color:var(--text);font-weight:600}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(129,224,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--text-3);font-size:13px;
}
.to-top{
  display:inline-flex;align-items:center;gap:8px;padding:9px 18px;border-radius:var(--r-pill);
  border:1px solid var(--border);background:rgba(16,38,56,.6);color:var(--text-2);font-size:13.5px;cursor:pointer;
}
.to-top:hover{color:var(--text);border-color:var(--cyan)}
@media (max-width:767px){
  .footer-col{margin-top:8px;border-top:1px solid rgba(129,224,255,.1);padding-top:14px}
  .footer-col h4{margin-bottom:0;display:flex;align-items:center;justify-content:space-between;cursor:pointer}
  .footer-col h4::after{content:"+";color:var(--cyan);font-weight:400;font-size:18px}
  .footer-col.is-open h4::after{content:"−"}
  .footer-col ul,.footer-col .footer-contact{display:none;margin-top:14px}
  .footer-col.is-open ul,.footer-col.is-open .footer-contact{display:grid}
}

/* ---------- misc ---------- */
.divider{height:1px;background:linear-gradient(90deg,transparent,rgba(129,224,255,.28),transparent);margin:0}
.breadcrumb{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb span.sep{opacity:.5}
.breadcrumb .current{color:var(--text)}
.tag-list{display:flex;flex-wrap:wrap;gap:10px}
@media (max-width:1023px){:root{--sec:72px}}
@media (max-width:767px){
  :root{--sec:48px}
  body{font-size:16px}
  .container{padding:0 16px}
  .section-head{margin-bottom:32px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --bg:#071018;
  --bg-2:#0B1B28;
  --panel:#102638;
  --cyan:#14C8D2;
  --amber:#F2A93B;
  --green:#35D07F;
  --red:#FF6B57;
  --text:#EAF6FF;
  --text-2:#A8C2D6;
  --text-3:#6F8FA6;
  --glass:rgba(16,38,56,.58);
  --glass-border:rgba(129,224,255,.16);
  --glass-border-strong:rgba(129,224,255,.32);
  --r-pill:999px;
  --r-lg:18px;
  --r-sm:12px;
  --shadow:0 18px 40px rgba(0,8,20,.35);
  --glow:0 0 24px rgba(20,200,210,.28);
  --section-y:96px;
}

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

html{scroll-behavior:smooth;}

body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Alibaba PuHuiTi",system-ui,-apple-system,"Segoe UI",sans-serif;
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  background:
    radial-gradient(900px 520px at 12% -6%,rgba(20,200,210,.10),transparent 62%),
    radial-gradient(760px 480px at 96% 8%,rgba(242,169,59,.07),transparent 60%);
  z-index:0;
}

img{max-width:100%;display:block;border:0;}
a{color:inherit;text-decoration:none;background:transparent;}
button,input,textarea,select{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
p{margin:0 0 1.1em;}
h1,h2,h3,h4{margin:0 0 16px;line-height:1.25;font-weight:700;color:var(--text);letter-spacing:-.2px;}
h1{font-size:clamp(30px,4.4vw,54px);}
h2{font-size:clamp(26px,3vw,38px);}
h3{font-size:clamp(20px,2vw,27px);}
h4{font-size:19px;}

::selection{background:rgba(20,200,210,.32);}

:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;position:relative;z-index:1;}

.section{padding:var(--section-y) 0;position:relative;z-index:1;}
.section-tight{padding:72px 0;}

.section-head{max-width:760px;margin-bottom:44px;}
.section-head h2{position:relative;padding-left:18px;}
.section-head h2::before{
  content:"";position:absolute;left:0;top:.18em;bottom:.18em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--cyan),rgba(20,200,210,.15));
  box-shadow:var(--glow);
}
.section-head p{color:var(--text-2);font-size:17px;margin:0;}

.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:2px;color:var(--cyan);
  text-transform:uppercase;margin-bottom:14px;
}
.eyebrow::before{content:"";width:22px;height:1px;background:var(--cyan);opacity:.7;}

/* ============ 顶部悬浮胶囊导航 ============ */
.site-header{
  position:fixed;
  top:16px;left:0;right:0;
  z-index:60;
  padding:0 24px;
}
.nav-shell{
  max-width:1180px;
  margin:0 auto;
  min-height:70px;
  display:flex;
  align-items:center;
  gap:20px;
  padding:0 20px;
  border-radius:var(--r-pill);
  background:rgba(11,27,40,.74);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow);
}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;}
.brand-mark{
  width:38px;height:38px;border-radius:13px;
  display:grid;place-items:center;
  background:linear-gradient(140deg,rgba(20,200,210,.24),rgba(242,169,59,.14));
  border:1px solid rgba(129,224,255,.3);
  color:var(--cyan);
  box-shadow:inset 0 0 18px rgba(20,200,210,.14);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-weight:700;font-size:18px;letter-spacing:.6px;}
.brand-text small{font-size:11px;font-weight:400;color:var(--text-3);letter-spacing:2.4px;margin-top:3px;}

.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  padding:8px 13px;
  border-radius:var(--r-pill);
  font-size:15px;
  color:var(--text-2);
  white-space:nowrap;
  transition:color .2s ease-out,background .2s ease-out,box-shadow .2s ease-out;
}
.nav-links a:hover{color:var(--text);background:rgba(20,200,210,.09);}
.nav-links a.is-active{
  color:var(--text);
  background:rgba(20,200,210,.15);
  box-shadow:inset 0 0 0 1px rgba(129,224,255,.26),0 0 18px rgba(20,200,210,.18);
}

.nav-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:var(--r-pill);
  background:rgba(255,255,255,.02);
  border:1px solid rgba(129,224,255,.22);
  cursor:pointer;
  position:relative;
  transition:border-color .2s ease-out,background .2s ease-out;
}
.nav-toggle:hover{border-color:var(--glass-border-strong);background:rgba(20,200,210,.08);}
.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 .22s ease-out,opacity .22s ease-out;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";left:0;top:-6px;transform:none;}
.nav-toggle span::after{content:"";left:0;top:6px;transform:none;}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translateY(6px) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translateY(-6px) rotate(-45deg);}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  min-height:48px;padding:0 24px;
  border-radius:var(--r-pill);
  border:1px solid transparent;
  font-size:15px;font-weight:600;letter-spacing:.4px;
  cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,border-color .2s ease-out,opacity .2s ease-out;
}
.btn-primary{
  background:linear-gradient(135deg,var(--cyan),#0FA3B1);
  color:#04161B;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(20,200,210,.45);}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 14px rgba(20,200,210,.35);}
.btn-ghost{
  background:rgba(16,38,56,.5);
  border-color:rgba(129,224,255,.24);
  color:var(--text);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--glass-border-strong);background:rgba(20,200,210,.1);}
.btn-amber{
  background:linear-gradient(135deg,var(--amber),#D98E22);
  color:#1B1204;
  box-shadow:0 0 20px rgba(242,169,59,.26);
}
.btn-amber:hover{transform:translateY(-2px);box-shadow:0 0 26px rgba(242,169,59,.4);}
.btn-link{
  padding:6px 0;min-height:auto;background:none;border:none;color:var(--cyan);font-weight:600;
}
.btn-link::after{content:"→";margin-left:6px;transition:transform .2s ease-out;}
.btn-link:hover::after{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.btn.is-loading{position:relative;color:transparent;}
.btn.is-loading::after{
  content:"";position:absolute;width:18px;height:18px;border-radius:50%;
  border:2px solid rgba(4,22,27,.35);border-top-color:#04161B;animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* ============ 徽章 / 标签 ============ */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 13px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.6px;line-height:1.7;
  border:1px solid rgba(129,224,255,.28);
  background:rgba(20,200,210,.1);
  color:var(--cyan);
}
.badge-amber{border-color:rgba(242,169,59,.34);background:rgba(242,169,59,.1);color:var(--amber);}
.badge-green{border-color:rgba(53,208,127,.32);background:rgba(53,208,127,.1);color:var(--green);}
.tag-list{display:flex;flex-wrap:wrap;gap:10px;}
.tag{
  display:inline-flex;align-items:center;
  padding:6px 15px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text-2);
  border:1px solid rgba(129,224,255,.16);
  background:rgba(16,38,56,.42);
  transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.tag:hover{color:var(--text);border-color:var(--glass-border-strong);background:rgba(20,200,210,.1);}

/* ============ 面包屑 ============ */
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:13px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--text-3);transition:color .2s ease-out;}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--cyan);}

/* ============ 分类页 Hero ============ */
.page-hero{
  position:relative;
  padding:172px 0 92px;
  background-image:
    linear-gradient(180deg,rgba(7,16,24,.82) 0%,rgba(7,16,24,.9) 55%,rgba(7,16,24,.97) 100%),
    linear-gradient(90deg,rgba(7,16,24,.86),rgba(7,16,24,.42)),
    url("/assets/images/backpic/back-1.png");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid rgba(129,224,255,.1);
  overflow:hidden;
}
.hero-grid{
  position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(129,224,255,.06) 1px,transparent 1px),
    linear-gradient(90deg,rgba(129,224,255,.06) 1px,transparent 1px);
  background-size:96px 96px;
  mask-image:radial-gradient(700px 420px at 70% 20%,#000,transparent 78%);
  -webkit-mask-image:radial-gradient(700px 420px at 70% 20%,#000,transparent 78%);
  pointer-events:none;
}
.page-hero h1{margin-bottom:20px;}
.hero-sub{
  font-size:19px;color:var(--text-2);max-width:620px;margin-bottom:30px;line-height:1.9;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;}

.glass-panel{
  background:var(--glass);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border:1px solid var(--glass-border);
  border-radius:var(--r-lg);
  padding:26px;
  box-shadow:var(--shadow);
}
.panel-title{
  display:flex;align-items:center;justify-content:space-between;
  font-size:14px;color:var(--text-3);letter-spacing:1.4px;margin-bottom:18px;
}
.panel-title b{color:var(--text);font-size:15px;letter-spacing:.6px;}
.panel-list li{
  display:flex;align-items:flex-start;gap:14px;
  padding:14px 0;
  border-bottom:1px dashed rgba(129,224,255,.14);
}
.panel-list li:last-child{border-bottom:none;padding-bottom:2px;}
.panel-index{
  flex:0 0 auto;
  width:30px;height:30px;border-radius:10px;
  display:grid;place-items:center;
  font-size:13px;font-weight:700;color:var(--cyan);
  background:rgba(20,200,210,.12);
  border:1px solid rgba(129,224,255,.22);
}
.panel-list strong{display:block;font-size:16px;margin-bottom:2px;}
.panel-list span{font-size:13.5px;color:var(--text-3);line-height:1.7;}

/* ============ 双栏图文 ============ */
.split-media{
  display:grid;grid-template-columns:minmax(0,1.05fr) minmax(0,1fr);
  gap:52px;align-items:center;
}
.media-frame{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--glass-border);
  box-shadow:var(--shadow);
}
.media-frame img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.media-frame::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 45%,rgba(7,16,24,.72));
}
.media-tag{
  position:absolute;left:16px;bottom:16px;z-index:2;
}
.split-media .copy p{color:var(--text-2);}
.check-list{margin-top:22px;}
.check-list li{
  display:flex;gap:12px;align-items:flex-start;
  padding:10px 0;color:var(--text-2);font-size:16px;
}
.check-list li svg{flex:0 0 auto;width:20px;height:20px;margin-top:7px;color:var(--cyan);}

/* ============ 编号路径 ============ */
.path-wrap{
  background:linear-gradient(180deg,rgba(11,27,40,.7),rgba(7,16,24,0));
  border-top:1px solid rgba(129,224,255,.1);
  border-bottom:1px solid rgba(129,224,255,.1);
}
.steps{counter-reset:step;display:grid;gap:18px;}
.steps li{
  counter-increment:step;
  position:relative;
  display:grid;grid-template-columns:64px minmax(0,1fr);
  gap:22px;
  padding:24px 26px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--glass-border);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.steps li:hover{transform:translateY(-3px);border-color:var(--glass-border-strong);box-shadow:var(--shadow);}
.steps li::before{
  content:counter(step,decimal-leading-zero);
  font-size:24px;font-weight:700;color:var(--cyan);
  letter-spacing:1px;line-height:1.4;
  display:flex;align-items:flex-start;
}
.steps li::after{
  content:"";position:absolute;left:26px;top:-18px;height:18px;width:1px;
  background:linear-gradient(180deg,rgba(20,200,210,0),rgba(20,200,210,.5));
}
.steps li:first-child::after{display:none;}
.steps h3{margin-bottom:8px;font-size:20px;}
.steps p{margin:0;color:var(--text-2);font-size:16px;}

/* ============ 指标条 ============ */
.metrics{
  display:grid;grid-template-columns:repeat(4,minmax(0,1fr));
  gap:18px;
}
.metric{
  padding:26px 24px;border-radius:var(--r-lg);
  background:linear-gradient(160deg,rgba(16,38,56,.72),rgba(11,27,40,.5));
  border:1px solid var(--glass-border);
  transition:transform .22s ease-out,border-color .22s ease-out;
}
.metric:hover{transform:translateY(-3px);border-color:var(--glass-border-strong);}
.metric b{
  display:block;font-size:34px;font-weight:700;line-height:1.2;
  color:var(--amber);margin-bottom:6px;letter-spacing:-.5px;
}
.metric span{font-size:14px;color:var(--text-3);}

/* ============ 资讯类目横向列表 ============ */
.news-rows{display:grid;gap:16px;}
.news-row{
  display:grid;grid-template-columns:150px minmax(0,1fr) auto;
  align-items:center;gap:24px;
  padding:18px;
  border-radius:var(--r-lg);
  background:var(--glass);
  border:1px solid var(--glass-border);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.news-row:hover{transform:translateY(-3px);border-color:var(--glass-border-strong);box-shadow:var(--shadow);}
.news-row .thumb{
  border-radius:var(--r-sm);overflow:hidden;border:1px solid rgba(129,224,255,.14);
}
.news-row .thumb img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.news-row h3{margin:0 0 6px;font-size:20px;}
.news-row p{margin:0;color:var(--text-3);font-size:15px;}
.news-row .meta{
  display:flex;flex-direction:column;align-items:flex-end;gap:10px;
  font-size:13px;color:var(--text-3);white-space:nowrap;
}

/* ============ 编辑筛选标准 反向双栏 ============ */
.split-reverse .split-media{grid-template-columns:minmax(0,1fr) minmax(0,1.05fr);}
.rule-list{display:grid;gap:14px;margin-top:4px;}
.rule-list li{
  padding:18px 20px;border-radius:var(--r-sm);
  background:rgba(16,38,56,.42);
  border:1px solid rgba(129,224,255,.14);
  border-left:3px solid var(--cyan);
}
.rule-list strong{display:block;margin-bottom:4px;font-size:16px;}
.rule-list span{color:var(--text-3);font-size:14.5px;}

/* ============ FAQ ============ */
.faq-wrap{max-width:900px;margin:0 auto;}
.accordion{background:transparent;border:none;margin:0;}
.accordion-item{
  background:transparent;border:none;
  border-bottom:1px solid rgba(129,224,255,.14);
}
.accordion-item:first-child{border-top:1px solid rgba(129,224,255,.14);}
.accordion-title{
  display:block;position:relative;
  padding:22px 56px 22px 20px;
  border:none;background:transparent;
  font-size:18px;font-weight:600;color:var(--text);line-height:1.6;
  border-left:3px solid transparent;
  transition:color .2s ease-out,border-color .2s ease-out,background .2s ease-out;
}
.accordion-title:hover,.accordion-title:focus{background:rgba(20,200,210,.05);color:var(--text);}
.accordion-title::before{
  content:"+";
  position:absolute;right:20px;top:50%;
  transform:translateY(-50%);
  width:auto;height:auto;margin:0;float:none;
  font-size:24px;font-weight:400;color:var(--cyan);line-height:1;
  transition:transform .22s ease-out;
}
.accordion-item.is-active .accordion-title{border-left-color:var(--cyan);}
.accordion-item.is-active .accordion-title::before{content:"−";transform:translateY(-50%) rotate(180deg);}
.accordion-content{
  padding:0 56px 24px 20px;
  border:none;background:transparent;
  color:var(--text-2);font-size:16px;line-height:1.85;
}
.accordion-content p:last-child{margin-bottom:0;}

/* ============ CTA 带 ============ */
.cta-band{
  position:relative;
  border-radius:22px;
  padding:52px 48px;
  background:
    linear-gradient(120deg,rgba(20,200,210,.14),rgba(242,169,59,.08) 62%,rgba(16,38,56,.4)),
    rgba(11,27,40,.9);
  border:1px solid var(--glass-border-strong);
  box-shadow:var(--shadow);
  overflow:hidden;
}
.cta-band::after{
  content:"";position:absolute;right:-80px;top:-80px;width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,200,210,.18),transparent 70%);
}
.cta-band h2{margin-bottom:14px;}
.cta-band p{color:var(--text-2);max-width:640px;margin-bottom:26px;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;position:relative;z-index:2;}
.cta-entry{
  display:grid;grid-template-columns:repeat(3,minmax(0,1fr));
  gap:14px;margin-top:34px;position:relative;z-index:2;
}
.cta-entry a{
  display:block;padding:16px 18px;border-radius:var(--r-sm);
  background:rgba(7,16,24,.5);
  border:1px solid rgba(129,224,255,.16);
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.cta-entry a:hover{transform:translateY(-2px);border-color:var(--glass-border-strong);}
.cta-entry b{display:block;font-size:16px;margin-bottom:4px;}
.cta-entry span{font-size:13.5px;color:var(--text-3);}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  padding:64px 0 30px;
  background:rgba(11,27,40,.72);
  border-top:1px solid rgba(129,224,255,.14);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  position:relative;z-index:1;
}
.footer-brand{
  display:flex;align-items:center;gap:11px;
  font-size:19px;font-weight:700;margin-bottom:16px;
}
.footer-desc{color:var(--text-3);font-size:14.5px;line-height:1.85;max-width:380px;margin:0;}
.footer-col h4{font-size:15px;color:var(--text);margin-bottom:16px;letter-spacing:.6px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{color:var(--text-3);font-size:14.5px;transition:color .2s ease-out;}
.footer-col ul a:hover{color:var(--cyan);}
.footer-contact li{color:var(--text-3);font-size:14.5px;line-height:1.8;margin-bottom:10px;}
.footer-contact b{color:var(--text-2);font-weight:600;}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(129,224,255,.12);
  display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap;
  color:var(--text-3);font-size:13.5px;
}
.to-top{
  background:rgba(16,38,56,.6);
  border:1px solid rgba(129,224,255,.22);
  color:var(--text-2);
  border-radius:var(--r-pill);
  padding:8px 18px;font-size:13.5px;cursor:pointer;
  transition:color .2s ease-out,border-color .2s ease-out,transform .2s ease-out;
}
.to-top:hover{color:var(--text);border-color:var(--glass-border-strong);transform:translateY(-2px);}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  :root{--section-y:72px;}
  .nav-shell{min-height:64px;padding:0 16px;}
  .nav-toggle{display:inline-flex;}
  .nav-links{
    position:fixed;
    top:96px;left:16px;right:16px;
    flex-direction:column;
    align-items:stretch;
    gap:4px;
    padding:16px;
    border-radius:20px;
    background:rgba(11,27,40,.97);
    border:1px solid var(--glass-border);
    box-shadow:var(--shadow);
    display:none;
    max-height:calc(100vh - 130px);
    overflow-y:auto;
  }
  .nav-links.is-open{display:flex;}
  .nav-links a{padding:12px 16px;font-size:16px;}
  .split-media,.split-reverse .split-media{grid-template-columns:1fr;gap:34px;}
  .metrics{grid-template-columns:repeat(2,minmax(0,1fr));}
  .cta-entry{grid-template-columns:1fr;}
  .page-hero{padding:140px 0 72px;}
  .news-row{grid-template-columns:120px minmax(0,1fr);}
  .news-row .meta{grid-column:2;flex-direction:row;align-items:center;justify-content:flex-start;}
  .cta-band{padding:40px 28px;}
}

@media screen and (max-width:767px){
  :root{--section-y:48px;}
  body{font-size:16px;}
  .container{padding:0 16px;}
  .site-header{padding:0 12px;top:12px;}
  .brand-text small{display:none;}
  .nav-cta .btn{padding:0 16px;min-height:42px;font-size:14px;}
  .page-hero{padding:126px 0 60px;}
  .hero-sub{font-size:16.5px;}
  .hero-actions .btn{flex:1 1 100%;}
  .glass-panel{padding:20px;}
  .steps li{grid-template-columns:1fr;gap:10px;padding:20px;}
  .steps li::before{font-size:20px;}
  .steps li::after{display:none;}
  .metrics{grid-template-columns:1fr;}
  .news-row{grid-template-columns:1fr;gap:14px;}
  .news-row .meta{grid-column:1;}
  .accordion-title{font-size:16.5px;padding:18px 48px 18px 14px;}
  .accordion-content{padding:0 16px 20px 14px;font-size:15px;}
  .cta-band{padding:32px 20px;border-radius:18px;}
  .footer-col{margin-bottom:26px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
}

@media screen and (max-width:400px){
  .brand-text{font-size:16px;}
  .nav-cta .btn{padding:0 12px;font-size:13px;}
  .page-hero{padding:118px 0 52px;}
}

@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg:#071018;
  --bg-2:#0B1B28;
  --panel:#102638;
  --cyan:#14C8D2;
  --cyan-soft:rgba(20,200,210,.14);
  --amber:#F2A93B;
  --amber-soft:rgba(242,169,59,.14);
  --green:#35D07F;
  --red:#FF6B57;
  --text:#EAF6FF;
  --text-2:#A8C2D6;
  --text-3:#6F8FA6;
  --glass:rgba(16,38,56,.58);
  --glass-strong:rgba(16,38,56,.88);
  --line:rgba(129,224,255,.16);
  --line-strong:rgba(129,224,255,.34);
  --r-lg:18px;
  --r-md:14px;
  --r-sm:12px;
  --shadow:0 18px 40px rgba(0,8,20,.35);
  --glow:0 0 24px rgba(20,200,210,.28);
  --ease:cubic-bezier(.22,.61,.36,1);
  --gap:24px;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  background:
    radial-gradient(900px 520px at 12% -8%, rgba(20,200,210,.10), transparent 60%),
    radial-gradient(760px 460px at 92% 4%, rgba(242,169,59,.07), transparent 62%),
    var(--bg);
  color:var(--text);
  font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:var(--cyan);text-decoration:none;transition:color .2s var(--ease),opacity .2s var(--ease);}
a:hover{color:#7CE9F0;}
h1,h2,h3,h4{font-weight:700;line-height:1.28;margin:0;letter-spacing:.005em;color:#fff;}
p{margin:0;}
ul,ol{margin:0;padding:0;list-style:none;}
button{font-family:inherit;cursor:pointer;border:0;background:none;color:inherit;}
input,textarea{font-family:inherit;font-size:16px;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}

/* ============ 悬浮胶囊导航 ============ */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:80;}
.nav-shell{
  max-width:1180px;margin:0 auto;height:68px;
  display:flex;align-items:center;gap:18px;
  padding:0 14px 0 20px;
  border-radius:999px;
  background:var(--glass);
  -webkit-backdrop-filter:blur(18px);
  backdrop-filter:blur(18px);
  border:1px solid var(--line);
  box-shadow:0 18px 40px rgba(0,8,20,.45);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto;color:#fff;text-decoration:none;}
.brand-mark{
  width:36px;height:36px;border-radius:11px;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--cyan);
  background:linear-gradient(150deg,rgba(20,200,210,.22),rgba(20,200,210,.04));
  border:1px solid var(--line-strong);
  box-shadow:inset 0 0 16px rgba(20,200,210,.16);
}
.brand-mark svg{width:20px;height:20px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-weight:700;font-size:17px;letter-spacing:.02em;}
.brand-text small{font-size:11px;font-weight:400;color:var(--text-3);letter-spacing:.14em;margin-top:2px;}
.nav-links{display:flex;align-items:center;gap:4px;margin-left:auto;}
.nav-links a{
  position:relative;display:inline-block;
  padding:8px 13px;border-radius:999px;
  font-size:15px;color:var(--text-2);
  transition:color .2s var(--ease),background .2s var(--ease);
}
.nav-links a::after{
  content:"";position:absolute;left:50%;bottom:3px;transform:translateX(-50%);
  width:0;height:2px;border-radius:2px;background:var(--cyan);
  transition:width .22s var(--ease);
}
.nav-links a:hover{color:#fff;background:rgba(20,200,210,.08);}
.nav-links a:hover::after{width:18px;}
.nav-links a.is-active{
  color:#fff;background:rgba(20,200,210,.15);
  border:1px solid rgba(129,224,255,.28);
  box-shadow:var(--glow);
}
.nav-links a.is-active::after{width:0;}
.nav-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:999px;
  border:1px solid var(--line);background:rgba(16,38,56,.7);
  align-items:center;justify-content:center;
}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--text);border-radius:2px;position:relative;}
.nav-toggle span::before,.nav-toggle span::after{
  content:"";position:absolute;left:0;width:16px;height:2px;background:var(--text);border-radius:2px;
  transition:transform .2s var(--ease);
}
.nav-toggle span::before{top:-5px;}
.nav-toggle span::after{top:5px;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:44px;padding:0 22px;border-radius:999px;
  font-size:15px;font-weight:600;letter-spacing:.02em;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),background .2s var(--ease),color .2s var(--ease),border-color .2s var(--ease);
}
.btn-primary{
  background:linear-gradient(135deg,var(--cyan),#0FA9B4);
  color:#04131A;box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(20,200,210,.45);color:#04131A;}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 14px rgba(20,200,210,.35);}
.btn-ghost{
  background:rgba(16,38,56,.5);border-color:var(--line-strong);color:var(--text);
  -webkit-backdrop-filter:blur(12px);backdrop-filter:blur(12px);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--cyan);color:#fff;background:rgba(20,200,210,.12);}
.btn-amber{background:linear-gradient(135deg,var(--amber),#D98A1E);color:#231303;box-shadow:0 0 22px rgba(242,169,59,.26);}
.btn-amber:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(242,169,59,.42);color:#231303;}
.btn[disabled],.btn.is-loading{opacity:.55;cursor:not-allowed;transform:none;box-shadow:none;}
.btn-text{color:var(--cyan);font-weight:600;display:inline-flex;align-items:center;gap:6px;}
.btn-text:hover{gap:10px;color:#7CE9F0;}
.btn-block{width:100%;}

/* ============ 面包屑 ============ */
.page-top{padding-top:124px;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13.5px;color:var(--text-3);margin-bottom:22px;
}
.breadcrumb a{color:var(--text-2);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb .sep{color:rgba(111,143,166,.6);}
.breadcrumb .current{color:var(--cyan);}

/* ============ 文章头部 ============ */
.article-hero{padding-bottom:8px;}
.article-head{max-width:940px;}
.article-kicker{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.16em;color:var(--amber);
  text-transform:uppercase;margin-bottom:16px;
}
.article-kicker::before{content:"";width:26px;height:1px;background:linear-gradient(90deg,var(--amber),transparent);}
.article-title{
  font-size:clamp(32px,4.4vw,48px);
  line-height:1.24;margin-bottom:18px;
  background:linear-gradient(180deg,#FFFFFF 20%,#BCE5F2 100%);
  -webkit-background-clip:text;background-clip:text;color:transparent;
}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;font-size:13.5px;color:var(--text-3);}
.chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 14px;border-radius:999px;font-size:12.5px;font-weight:600;
  color:var(--cyan);background:var(--cyan-soft);border:1px solid rgba(129,224,255,.28);
}
.chip-chip-amber{color:var(--amber);background:var(--amber-soft);border-color:rgba(242,169,59,.3);}
.chip-amber{color:var(--amber);background:var(--amber-soft);border-color:rgba(242,169,59,.3);}
.chip-green{color:var(--green);background:rgba(53,208,127,.13);border-color:rgba(53,208,127,.28);}
.meta-dot{width:4px;height:4px;border-radius:50%;background:rgba(111,143,166,.6);}
.article-lead{
  margin-top:24px;padding-left:18px;border-left:3px solid rgba(20,200,210,.5);
  font-size:17px;color:var(--text-2);line-height:1.95;max-width:900px;
}

/* ============ 头图 ============ */
.article-figure{margin:40px 0 0;}
.article-cover{
  position:relative;border-radius:var(--r-lg);overflow:hidden;
  border:1px solid var(--line);box-shadow:var(--shadow);
  background:var(--bg-2);
}
.article-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;}
.article-cover::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,16,24,0) 45%,rgba(7,16,24,.72) 100%);
  pointer-events:none;
}
.figcaption{margin-top:12px;font-size:13px;color:var(--text-3);}

/* ============ 正文布局 ============ */
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 300px;
  gap:56px;align-items:start;
  padding:64px 0 0;
}
.article-content{max-width:760px;font-size:17px;line-height:1.95;color:var(--text-2);}
.article-content > *:first-child{margin-top:0;}
.article-content p{margin:0 0 1.2em;color:var(--text-2);}
.article-content h2{
  font-size:27px;margin:48px 0 16px;padding-left:15px;
  border-left:3px solid var(--cyan);line-height:1.4;color:#fff;
}
.article-content h3{font-size:21px;margin:34px 0 12px;color:#fff;}
.article-content h4{font-size:18px;margin:26px 0 10px;color:#E4F4FF;}
.article-content ul,.article-content ol{margin:0 0 1.3em;padding-left:4px;}
.article-content ul li,.article-content ol li{position:relative;padding-left:22px;margin-bottom:.55em;color:var(--text-2);}
.article-content ul li::before{
  content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:2px;
  background:var(--cyan);box-shadow:0 0 10px rgba(20,200,210,.5);transform:rotate(45deg);
}
.article-content ol{counter-reset:olc;}
.article-content ol li{counter-increment:olc;}
.article-content ol li::before{
  content:counter(olc);position:absolute;left:0;top:.35em;
  width:18px;height:18px;border-radius:6px;font-size:11px;font-weight:700;
  display:flex;align-items:center;justify-content:center;
  color:var(--cyan);background:var(--cyan-soft);border:1px solid rgba(129,224,255,.3);
  padding:0;transform:none;
}
.article-content blockquote{
  margin:26px 0;padding:20px 24px;
  background:var(--glass);border-left:3px solid var(--amber);
  border-radius:0 var(--r-md) var(--r-md) 0;
  color:var(--text);font-size:16.5px;
}
.article-content blockquote p:last-child{margin-bottom:0;}
.article-content img{border-radius:var(--r-md);margin:26px auto;box-shadow:var(--shadow);}
.article-content a{color:var(--cyan);text-decoration:underline;text-underline-offset:3px;}
.article-content strong{color:#fff;font-weight:700;}
.article-content hr{border:0;height:1px;background:var(--line);margin:36px 0;}
.article-content table{
  width:100%;min-width:520px;border-collapse:separate;border-spacing:0;
  margin:26px 0;font-size:15px;background:rgba(16,38,56,.5);
  border:1px solid var(--line);border-radius:var(--r-md);overflow:hidden;
}
.article-content th,.article-content td{padding:12px 16px;text-align:left;border-bottom:1px solid rgba(129,224,255,.1);}
.article-content th{background:rgba(20,200,210,.1);color:#fff;font-weight:600;}
.article-content tr:last-child td{border-bottom:0;}
.article-content pre{
  overflow-x:auto;padding:18px 20px;border-radius:var(--r-md);
  background:rgba(7,16,24,.85);border:1px solid var(--line);
  color:#BFE9F2;font-size:14px;line-height:1.7;
}
.article-content code{font-family:ui-monospace,Menlo,Consolas,monospace;font-size:.94em;color:#8FE6EE;}

/* ============ 目录侧栏 ============ */
.article-side{position:sticky;top:112px;display:flex;flex-direction:column;gap:20px;}
.side-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px 22px 20px;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  box-shadow:var(--shadow);
}
.side-title{font-size:14px;letter-spacing:.12em;color:var(--text-3);margin-bottom:14px;}
.toc-list{display:flex;flex-direction:column;gap:2px;max-height:52vh;overflow:auto;}
.toc-link{
  display:block;padding:7px 12px;border-radius:10px;font-size:14px;color:var(--text-2);
  border-left:2px solid transparent;line-height:1.6;
}
.toc-link:hover{color:#fff;background:rgba(20,200,210,.08);}
.toc-link.is-sub{padding-left:24px;font-size:13px;color:var(--text-3);}
.toc-link.is-active{color:var(--cyan);border-left-color:var(--cyan);background:rgba(20,200,210,.1);}
.side-note{font-size:13.5px;color:var(--text-3);line-height:1.85;}
.side-note b{color:var(--text-2);font-weight:600;}
.side-cta{margin-top:16px;}

/* ============ 文章尾部 ============ */
.article-foot{max-width:760px;padding:56px 0 0;}
.tag-row{display:flex;flex-wrap:wrap;gap:10px;padding-top:26px;border-top:1px solid var(--line);}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  font-size:13px;color:var(--text-2);background:rgba(16,38,56,.6);border:1px solid var(--line);
  transition:border-color .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.tag:hover{border-color:var(--cyan);color:#fff;transform:translateY(-2px);}

.post-nav{display:grid;grid-template-columns:1fr 1fr;gap:16px;margin-top:28px;}
.post-nav-link{
  display:flex;flex-direction:column;gap:6px;padding:18px 22px;
  border-radius:var(--r-md);background:rgba(16,38,56,.5);
  border:1px solid var(--line);color:var(--text);
  transition:transform .2s var(--ease),border-color .2s var(--ease),background .2s var(--ease);
}
.post-nav-link:hover{transform:translateY(-3px);border-color:var(--line-strong);background:rgba(20,200,210,.1);color:#fff;}
.post-nav-link.is-next{text-align:right;align-items:flex-end;}
.pn-label{font-size:12px;letter-spacing:.14em;color:var(--amber);}
.pn-title{font-size:15.5px;font-weight:600;line-height:1.6;}

/* ============ 区块标题 ============ */
.section{padding:88px 0;position:relative;}
.section-head{max-width:720px;margin-bottom:40px;}
.section-head h2{font-size:clamp(26px,3vw,36px);margin-bottom:14px;}
.section-head h2 .accent{color:var(--cyan);}
.section-head p{color:var(--text-2);font-size:16px;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;font-size:12.5px;letter-spacing:.18em;
  color:var(--amber);margin-bottom:14px;
}
.eyebrow::before{content:"";width:24px;height:1px;background:linear-gradient(90deg,var(--amber),transparent);}

/* ============ 卡片 ============ */
.card{
  display:flex;flex-direction:column;height:100%;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  overflow:hidden;-webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:0 22px 46px rgba(0,8,20,.45);}
.card-media{position:relative;overflow:hidden;background:var(--bg-2);}
.card-media img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .4s var(--ease);}
.card:hover .card-media img{transform:scale(1.045);}
.card-media .badge{
  position:absolute;left:14px;top:14px;padding:5px 12px;border-radius:999px;
  font-size:12px;font-weight:600;color:#04131A;background:rgba(20,200,210,.92);
  -webkit-backdrop-filter:blur(6px);backdrop-filter:blur(6px);
}
.card-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px;flex:1;}
.card-body h3{font-size:18.5px;line-height:1.5;}
.card-body h3 a{color:#fff;}
.card-body h3 a:hover{color:var(--cyan);}
.card-body p{font-size:14.5px;color:var(--text-2);line-height:1.85;flex:1;}
.card-meta{display:flex;align-items:center;gap:10px;font-size:12.5px;color:var(--text-3);}

/* ============ 订阅 CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  background:linear-gradient(120deg,rgba(16,38,56,.9),rgba(7,16,24,.92));
  border:1px solid var(--line);border-radius:22px;
  padding:46px 44px;
  box-shadow:var(--shadow);
}
.cta-band::before{
  content:"";position:absolute;inset:0;
  background-image:
    linear-gradient(rgba(129,224,255,.07) 1px,transparent 1px),
    linear-gradient(90deg,rgba(129,224,255,.07) 1px,transparent 1px);
  background-size:56px 56px;opacity:.5;pointer-events:none;
}
.cta-band > *{position:relative;}
.cta-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:40px;align-items:center;}
.cta-band h2{font-size:clamp(24px,2.6vw,32px);margin-bottom:12px;}
.cta-band p{color:var(--text-2);font-size:15.5px;}
.subscribe-form{display:flex;gap:10px;flex-wrap:wrap;}
.subscribe-form input{
  flex:1;min-width:200px;height:48px;padding:0 18px;border-radius:var(--r-sm);
  background:rgba(7,16,24,.7);border:1px solid var(--line);color:var(--text);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.subscribe-form input::placeholder{color:var(--text-3);}
.subscribe-form input:focus{outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(20,200,210,.18);}
.form-hint{font-size:12.5px;color:var(--text-3);margin-top:10px;}
.form-msg{margin-top:12px;font-size:14px;color:var(--green);display:none;}
.form-msg.is-error{color:var(--red);}
.form-msg.is-show{display:block;}

/* ============ 空态 ============ */
.empty-state{
  text-align:center;padding:64px 24px;border-radius:var(--r-lg);
  border:1px dashed var(--line-strong);background:rgba(16,38,56,.36);
}
.empty-state svg{width:46px;height:46px;color:var(--cyan);margin:0 auto 18px;}
.empty-state h2{font-size:24px;margin-bottom:12px;}
.empty-state p{color:var(--text-2);max-width:520px;margin:0 auto 22px;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:88px;border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,27,40,.86),rgba(7,16,24,.96));
  -webkit-backdrop-filter:blur(18px);backdrop-filter:blur(18px);
  padding:64px 0 26px;
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;color:#fff;margin-bottom:16px;}
.footer-desc{font-size:14.5px;color:var(--text-3);line-height:1.9;max-width:400px;}
.footer-col h4{font-size:14px;letter-spacing:.1em;color:var(--text);margin-bottom:16px;}
.footer-col ul{display:flex;flex-direction:column;gap:10px;}
.footer-col a{font-size:14.5px;color:var(--text-2);}
.footer-col a:hover{color:var(--cyan);}
.footer-contact li{font-size:14px;color:var(--text-3);line-height:1.85;}
.footer-contact b{color:var(--text-2);font-weight:600;}
.footer-bottom{
  margin-top:48px;padding-top:22px;border-top:1px solid rgba(129,224,255,.1);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13.5px;color:var(--text-3);
}
.to-top{
  padding:8px 18px;border-radius:999px;font-size:13px;
  color:var(--text-2);background:rgba(16,38,56,.7);border:1px solid var(--line);
  transition:color .2s var(--ease),border-color .2s var(--ease),transform .2s var(--ease);
}
.to-top:hover{color:#fff;border-color:var(--cyan);transform:translateY(-2px);}

/* ============ 响应式 ============ */
@media (max-width:1200px){
  .article-layout{gap:36px;grid-template-columns:minmax(0,1fr) 268px;}
}
@media (max-width:1023px){
  .nav-links{
    position:fixed;top:96px;left:16px;right:16px;display:none;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:14px;border-radius:22px;
    background:var(--glass-strong);border:1px solid var(--line);
    -webkit-backdrop-filter:blur(20px);backdrop-filter:blur(20px);
    box-shadow:0 24px 60px rgba(0,8,20,.55);
    max-height:70vh;overflow:auto;
  }
  .nav-links.is-open{display:flex;}
  .nav-links a{padding:12px 16px;font-size:15.5px;border-radius:14px;}
  .nav-links a::after{display:none;}
  .nav-toggle{display:inline-flex;}
  .nav-cta .btn-primary{display:none;}
  .article-layout{grid-template-columns:1fr;gap:0;}
  .article-side{position:static;order:-1;margin-bottom:32px;}
  .toc-list{max-height:none;}
  .section{padding:72px 0;}
  .cta-inner{grid-template-columns:1fr;gap:26px;}
  .cta-band{padding:36px 28px;}
}
@media (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .page-top{padding-top:108px;}
  .nav-shell{height:62px;padding:0 10px 0 14px;gap:10px;}
  .brand-text{font-size:15.5px;}
  .brand-text small{display:none;}
  .article-title{font-size:30px;}
  .article-lead{font-size:15.5px;padding-left:14px;}
  .article-content{font-size:16px;}
  .article-content h2{font-size:22px;margin-top:36px;}
  .article-content h3{font-size:18.5px;}
  .article-content table{font-size:14px;min-width:460px;display:block;overflow-x:auto;}
  .post-nav{grid-template-columns:1fr;}
  .post-nav-link.is-next{text-align:left;align-items:flex-start;}
  .section{padding:52px 0;}
  .cta-band{padding:28px 20px;border-radius:18px;}
  .subscribe-form input{min-width:100%;}
  .subscribe-form .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .site-footer{margin-top:60px;padding-top:48px;}
}
@media (max-width:479px){
  .article-title{font-size:26px;}
  .breadcrumb{font-size:12.5px;}
  .chip{font-size:12px;padding:4px 11px;}
  .article-content h2{font-size:20px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important;}
}

/* roulang page: category2 */
:root{
  --bg:#071018;
  --bg-2:#0B1B28;
  --panel:#102638;
  --primary:#14C8D2;
  --primary-dark:#0FA8B4;
  --primary-soft:rgba(20,200,210,.14);
  --amber:#F2A93B;
  --amber-soft:rgba(242,169,59,.14);
  --green:#35D07F;
  --green-soft:rgba(53,208,127,.14);
  --red:#FF6B57;
  --text:#EAF6FF;
  --text-2:#A8C2D6;
  --text-3:#6F8FA6;
  --glass:rgba(16,38,56,.58);
  --glass-strong:rgba(16,38,56,.82);
  --line:rgba(129,224,255,.16);
  --line-strong:rgba(129,224,255,.34);
  --r-lg:18px;
  --r-md:12px;
  --r-pill:999px;
  --shadow:0 18px 40px rgba(0,8,20,.35);
  --shadow-soft:0 10px 26px rgba(0,8,20,.28);
  --glow:0 0 24px rgba(20,200,210,.28);
  --gutter:24px;
}
*,*::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:"Noto Sans SC","Source Han Sans SC","PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.9;
  letter-spacing:.01em;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  pointer-events:none;
  z-index:0;
  background-image:
    linear-gradient(rgba(129,224,255,.05) 1px,transparent 1px),
    linear-gradient(90deg,rgba(129,224,255,.05) 1px,transparent 1px);
  background-size:120px 120px;
  opacity:.5;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--primary);text-decoration:none;transition:color .2s ease-out;}
a:hover{color:#7FE9F0;}
h1,h2,h3,h4{color:var(--text);font-weight:700;line-height:1.25;margin:0 0 16px;letter-spacing:.005em;}
h1{font-size:clamp(30px,4.4vw,52px);}
h2{font-size:clamp(24px,3vw,38px);}
h3{font-size:clamp(19px,2vw,26px);}
p{margin:0 0 18px;color:var(--text-2);}
ul,ol{margin:0 0 18px;padding-left:20px;color:var(--text-2);}
li{margin-bottom:8px;}
button{font-family:inherit;}
::selection{background:rgba(20,200,210,.32);color:#fff;}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px;}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 var(--gutter);position:relative;z-index:1;}
.section{padding:96px 0;position:relative;z-index:1;}
.section--tight{padding:72px 0;}
.section-alt{background:linear-gradient(180deg,rgba(11,27,40,.72),rgba(7,16,24,.2));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head--center{margin-left:auto;margin-right:auto;text-align:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:.14em;color:var(--amber);
  border:1px solid rgba(242,169,59,.34);
  background:var(--amber-soft);
  padding:5px 14px;border-radius:var(--r-pill);
  margin-bottom:16px;
}
.eyebrow::before{content:"";width:6px;height:6px;border-radius:50%;background:var(--amber);}
.lead{font-size:17px;color:var(--text-2);line-height:1.95;}

/* ============ 悬浮胶囊导航 ============ */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:80;padding:0 16px;}
.nav-shell{
  max-width:1180px;margin:0 auto;height:70px;
  display:flex;align-items:center;gap:18px;
  padding:0 16px 0 18px;
  border-radius:var(--r-pill);
  background:rgba(11,27,40,.74);
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.brand{display:flex;align-items:center;gap:12px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:40px;height:40px;flex:0 0 40px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:13px;
  background:linear-gradient(140deg,rgba(20,200,210,.24),rgba(242,169,59,.16));
  border:1px solid var(--line-strong);
  color:var(--primary);
}
.brand-mark svg{width:22px;height:22px;}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;line-height:1.25;letter-spacing:.02em;}
.brand-text small{font-size:11px;font-weight:400;color:var(--text-3);letter-spacing:.12em;margin-top:2px;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-links a{
  position:relative;
  display:inline-block;
  padding:9px 14px;
  font-size:14.5px;
  color:var(--text-2);
  border-radius:var(--r-pill);
  white-space:nowrap;
  transition:color .2s ease-out,background .2s ease-out;
}
.nav-links a:hover{color:var(--text);background:rgba(129,224,255,.08);}
.nav-links a.is-active{
  color:#06171E;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  box-shadow:var(--glow);
  font-weight:700;
}
.nav-links a.is-active:hover{color:#06171E;}
.nav-cta{display:flex;align-items:center;gap:12px;flex:0 0 auto;}
.nav-toggle{
  display:none;width:44px;height:40px;border-radius:var(--r-pill);
  background:rgba(129,224,255,.08);border:1px solid var(--line);
  cursor:pointer;position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .22s ease-out,opacity .18s ease-out;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}
body.nav-open .nav-toggle span{background:transparent;}
body.nav-open .nav-toggle span::before{transform:rotate(45deg);top:0;}
body.nav-open .nav-toggle span::after{transform:rotate(-45deg);top:0;}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-pill);
  font-size:15px;font-weight:700;line-height:1.4;
  border:1px solid transparent;cursor:pointer;
  transition:transform .18s ease-out,box-shadow .22s ease-out,background .2s ease-out,color .2s ease-out,border-color .2s ease-out;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#04161C;
  box-shadow:var(--glow);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(20,200,210,.45);color:#04161C;}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 14px rgba(20,200,210,.32);}
.btn-ghost{
  background:rgba(16,38,56,.5);
  border-color:var(--line-strong);
  color:var(--text);
  backdrop-filter:blur(12px);
}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--primary);color:#fff;background:rgba(20,200,210,.12);}
.btn-amber{
  background:linear-gradient(135deg,var(--amber),#D98A18);
  color:#221302;
  box-shadow:0 0 22px rgba(242,169,59,.28);
}
.btn-amber:hover{transform:translateY(-2px);color:#221302;box-shadow:0 0 30px rgba(242,169,59,.42);}
.btn-sm{padding:9px 18px;font-size:14px;}
.btn:disabled,.btn[aria-disabled="true"]{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}

/* ============ 面包屑 ============ */
.breadcrumb{margin:104px 0 0;font-size:13.5px;color:var(--text-3);}
.breadcrumb ol{list-style:none;display:flex;flex-wrap:wrap;gap:6px;margin:0;padding:0;}
.breadcrumb li{margin:0;display:flex;align-items:center;gap:6px;}
.breadcrumb li+li::before{content:"/";color:var(--text-3);opacity:.6;}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .current{color:var(--primary);}

/* ============ 内页 Hero ============ */
.page-hero{
  position:relative;
  margin-top:24px;
  padding:64px 0 72px;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  overflow:hidden;
}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,16,24,.88),rgba(7,16,24,.93) 55%,var(--bg) 100%);
}
.page-hero::after{
  content:"";position:absolute;right:-120px;top:-80px;width:420px;height:420px;
  border-radius:50%;background:radial-gradient(circle,rgba(20,200,210,.18),transparent 68%);
  pointer-events:none;
}
.page-hero .container{position:relative;z-index:2;}
.hero-title{margin-bottom:20px;}
.hero-title .hl{color:var(--primary);}
.hero-sub{font-size:17px;line-height:1.95;max-width:660px;color:var(--text-2);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:28px;}
.hero-note{margin-top:18px;font-size:13.5px;color:var(--text-3);}

.panel{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  padding:26px;
}
.panel-title{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:18px;}
.panel-title h3{margin:0;font-size:19px;}
.panel-title span{font-size:12.5px;color:var(--text-3);}
.stat-list{list-style:none;margin:0;padding:0;}
.stat-list li{
  display:flex;align-items:baseline;justify-content:space-between;gap:12px;
  padding:13px 0;margin:0;
  border-bottom:1px dashed rgba(129,224,255,.14);
}
.stat-list li:last-child{border-bottom:0;padding-bottom:0;}
.stat-list .k{font-size:14.5px;color:var(--text-2);}
.stat-list .v{font-size:20px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;}
.stat-list .v.amber{color:var(--amber);}

/* ============ 标签 / 徽章 ============ */
.chip-row{display:flex;flex-wrap:wrap;gap:10px;}
.chip{
  display:inline-flex;align-items:center;gap:8px;
  padding:7px 15px;border-radius:var(--r-pill);
  font-size:13px;color:var(--text-2);
  border:1px solid var(--line);
  background:rgba(16,38,56,.5);
  transition:all .2s ease-out;
}
.chip:hover{border-color:var(--primary);color:var(--text);background:rgba(20,200,210,.12);}
.chip.is-on{background:var(--primary-soft);border-color:var(--line-strong);color:var(--primary);}
.badge{
  display:inline-flex;align-items:center;
  padding:3px 11px;border-radius:var(--r-pill);
  font-size:12px;letter-spacing:.04em;
  border:1px solid var(--line-strong);color:var(--primary);
  background:rgba(20,200,210,.1);
}
.badge.amber{border-color:rgba(242,169,59,.4);color:var(--amber);background:var(--amber-soft);}
.badge.green{border-color:rgba(53,208,127,.4);color:var(--green);background:var(--green-soft);}
.badge.dim{border-color:var(--line);color:var(--text-3);background:rgba(16,38,56,.5);}

/* ============ 时间轴 ============ */
.timeline{position:relative;padding-left:40px;margin-top:8px;}
.timeline::before{
  content:"";position:absolute;left:12px;top:8px;bottom:8px;width:2px;
  background:linear-gradient(180deg,rgba(20,200,210,.68),rgba(242,169,59,.4),rgba(20,200,210,.06));
}
.tl-item{position:relative;padding-bottom:30px;}
.tl-item:last-child{padding-bottom:0;}
.tl-item::before{
  content:"";position:absolute;left:-40px;top:7px;width:24px;height:24px;border-radius:50%;
  background:var(--bg-2);border:1px solid var(--line-strong);
  box-shadow:0 0 0 5px rgba(20,200,210,.07);
}
.tl-item.is-current::before{background:var(--primary);border-color:var(--primary);box-shadow:var(--glow);}
.tl-item h3{font-size:20px;margin-bottom:8px;display:flex;align-items:center;flex-wrap:wrap;gap:10px;}
.tl-item p{margin-bottom:0;font-size:15.5px;line-height:1.9;}
.tl-meta{font-size:13px;color:var(--text-3);letter-spacing:.03em;}

/* ============ 指标卡 ============ */
.metric-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px;}
.metric{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:24px;box-shadow:var(--shadow-soft);
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.metric:hover{transform:translateY(-3px);border-color:var(--line-strong);}
.metric .num{font-size:32px;font-weight:700;color:var(--primary);font-variant-numeric:tabular-nums;line-height:1.2;}
.metric .num.amber{color:var(--amber);}
.metric .num.green{color:var(--green);}
.metric .lbl{font-size:14.5px;color:var(--text-2);margin-top:8px;}
.metric .sub{font-size:12.5px;color:var(--text-3);margin-top:6px;}

/* ============ 开服表行 ============ */
.table-card{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);overflow:hidden;
}
.table-head,.table-row{
  display:grid;
  grid-template-columns:1.1fr 1.6fr 1.1fr .9fr 1fr;
  gap:14px;align-items:center;
  padding:16px 24px;
}
.table-head{
  font-size:13px;color:var(--text-3);letter-spacing:.06em;
  background:rgba(20,200,210,.06);
  border-bottom:1px solid var(--line);
}
.table-row{border-bottom:1px solid rgba(129,224,255,.08);transition:background .2s ease-out;}
.table-row:nth-child(even){background:rgba(16,38,56,.32);}
.table-row:hover{background:rgba(20,200,210,.09);}
.table-row:last-child{border-bottom:0;}
.table-row .t{font-weight:700;color:var(--text);font-variant-numeric:tabular-nums;}
.table-row .g{color:var(--text);font-size:15.5px;}
.table-row .s{color:var(--text-2);font-size:14.5px;}
.table-scroll{overflow-x:auto;}
.table-note{padding:14px 24px;font-size:12.5px;color:var(--text-3);border-top:1px solid var(--line);}

/* ============ 图文错位 ============ */
.split-img{
  border-radius:var(--r-lg);overflow:hidden;border:1px solid var(--line);
  box-shadow:var(--shadow);position:relative;
}
.split-img img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.split-img .img-tag{
  position:absolute;left:16px;bottom:16px;
  padding:6px 14px;border-radius:var(--r-pill);font-size:12.5px;
  background:rgba(7,16,24,.72);border:1px solid var(--line-strong);color:var(--text);
  backdrop-filter:blur(10px);
}
.check-list{list-style:none;padding:0;margin:0;}
.check-list li{
  position:relative;padding-left:30px;margin-bottom:14px;
  color:var(--text-2);font-size:15.5px;line-height:1.85;
}
.check-list li::before{
  content:"";position:absolute;left:0;top:9px;width:14px;height:8px;
  border-left:2px solid var(--primary);border-bottom:2px solid var(--primary);
  transform:rotate(-45deg);border-radius:1px;
}
.step-list{list-style:none;counter-reset:st;padding:0;margin:0;}
.step-list li{
  counter-increment:st;position:relative;padding:20px 22px 20px 66px;margin-bottom:14px;
  background:rgba(16,38,56,.42);border:1px solid var(--line);border-radius:var(--r-md);
  color:var(--text-2);font-size:15.5px;
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.step-list li:hover{transform:translateX(4px);border-color:var(--line-strong);}
.step-list li::before{
  content:"0" counter(st);
  position:absolute;left:22px;top:20px;
  font-size:16px;font-weight:700;color:var(--primary);letter-spacing:.04em;
}
.step-list b{color:var(--text);display:block;margin-bottom:4px;font-size:16px;}

/* ============ 场景卡 ============ */
.scene-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;}
.scene{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:26px;box-shadow:var(--shadow-soft);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.scene:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.scene h3{font-size:19px;margin-bottom:10px;}
.scene p{font-size:15px;margin-bottom:0;}
.scene .icon{
  width:44px;height:44px;border-radius:13px;display:flex;align-items:center;justify-content:center;
  background:rgba(20,200,210,.12);border:1px solid var(--line-strong);color:var(--primary);margin-bottom:16px;
}
.scene .icon svg{width:22px;height:22px;}
.scene:nth-child(2) .icon{background:var(--amber-soft);border-color:rgba(242,169,59,.36);color:var(--amber);}
.scene:nth-child(3) .icon{background:var(--green-soft);border-color:rgba(53,208,127,.36);color:var(--green);}

/* ============ FAQ ============ */
.faq{list-style:none;margin:0;padding:0;border-top:1px solid var(--line);}
.faq-item{border-bottom:1px solid var(--line);margin:0;position:relative;}
.faq-q{
  width:100%;display:flex;align-items:center;justify-content:space-between;gap:18px;
  padding:22px 4px 22px 0;background:none;border:0;cursor:pointer;text-align:left;
  color:var(--text);font-size:17px;font-weight:600;line-height:1.6;
}
.faq-q::after{
  content:"";flex:0 0 16px;width:16px;height:16px;position:relative;
  background:
    linear-gradient(var(--primary),var(--primary)) center/16px 2px no-repeat,
    linear-gradient(var(--primary),var(--primary)) center/2px 16px no-repeat;
  transition:transform .22s ease-out;
}
.faq-item.is-open .faq-q::after{transform:rotate(135deg);}
.faq-item.is-open .faq-q{color:var(--primary);}
.faq-item.is-open::before{
  content:"";position:absolute;left:-16px;top:22px;bottom:22px;width:3px;
  background:var(--primary);border-radius:2px;box-shadow:var(--glow);
}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .28s ease-out;
}
.faq-item.is-open .faq-a{max-height:420px;}
.faq-a p{padding:0 44px 22px 0;margin:0;font-size:15.5px;line-height:1.85;}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;
  border:1px solid var(--line-strong);border-radius:var(--r-lg);
  background:linear-gradient(120deg,rgba(20,200,210,.16),rgba(16,38,56,.72) 46%,rgba(242,169,59,.12));
  padding:48px 44px;box-shadow:var(--shadow);
}
.cta-band::after{
  content:"";position:absolute;right:-80px;bottom:-100px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,200,210,.22),transparent 70%);
}
.cta-band h2{font-size:clamp(22px,2.6vw,32px);margin-bottom:12px;}
.cta-band p{max-width:600px;margin-bottom:0;}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px;position:relative;z-index:1;}
.cta-form{display:flex;flex-wrap:wrap;gap:12px;margin-top:24px;position:relative;z-index:1;}
.field{
  flex:1 1 240px;min-width:200px;
  background:rgba(7,16,24,.62);border:1px solid var(--line);
  border-radius:var(--r-md);padding:13px 16px;color:var(--text);
  font-size:15px;font-family:inherit;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field::placeholder{color:var(--text-3);}
.field:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(20,200,210,.16);}
.form-tip{font-size:12.5px;color:var(--text-3);margin-top:12px;position:relative;z-index:1;}

/* ============ 相关入口 ============ */
.entry-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:20px;}
.entry{
  display:flex;gap:18px;align-items:flex-start;
  background:rgba(16,38,56,.44);border:1px solid var(--line);border-radius:var(--r-lg);
  padding:22px;transition:transform .2s ease-out,border-color .2s ease-out;
}
.entry:hover{transform:translateY(-3px);border-color:var(--line-strong);}
.entry img{width:96px;height:72px;object-fit:cover;border-radius:var(--r-md);border:1px solid var(--line);}
.entry h3{font-size:17px;margin-bottom:6px;}
.entry p{font-size:14px;margin-bottom:0;}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:96px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,27,40,.88),rgba(7,16,24,.98));
  padding:64px 0 28px;position:relative;z-index:1;
}
.footer-brand{display:flex;align-items:center;gap:12px;font-size:18px;font-weight:700;margin-bottom:16px;}
.footer-desc{font-size:14.5px;color:var(--text-3);max-width:360px;line-height:1.85;}
.footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text);letter-spacing:.04em;}
.footer-col ul{list-style:none;margin:0;padding:0;}
.footer-col li{margin-bottom:10px;}
.footer-col a{font-size:14.5px;color:var(--text-2);}
.footer-col a:hover{color:var(--primary);text-decoration:underline;}
.footer-contact li{font-size:14px;color:var(--text-3);margin-bottom:10px;line-height:1.7;}
.footer-contact b{color:var(--text-2);font-weight:600;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.to-top{
  background:rgba(16,38,56,.6);border:1px solid var(--line);color:var(--text-2);
  border-radius:var(--r-pill);padding:8px 18px;font-size:13px;cursor:pointer;
  transition:all .2s ease-out;
}
.to-top:hover{border-color:var(--primary);color:var(--primary);box-shadow:var(--glow);}

/* ============ 响应式 ============ */
@media screen and (max-width:1023px){
  .section{padding:72px 0;}
  .metric-grid{grid-template-columns:repeat(2,1fr);}
  .scene-grid{grid-template-columns:1fr 1fr;}
  .scene-grid .scene:last-child{grid-column:span 2;}
  .table-head,.table-row{grid-template-columns:1.1fr 1.6fr 1fr .9fr 1fr;padding:14px 18px;}
  .entry-grid{grid-template-columns:1fr;}
}
@media screen and (max-width:900px){
  .nav-toggle{display:block;}
  .nav-links{
    position:fixed;top:96px;left:16px;right:16px;
    flex-direction:column;align-items:stretch;gap:4px;
    padding:16px;margin:0;
    background:rgba(11,27,40,.96);
    border:1px solid var(--line);border-radius:22px;
    box-shadow:var(--shadow);
    backdrop-filter:blur(20px);
    opacity:0;visibility:hidden;transform:translateY(-12px);
    transition:opacity .22s ease-out,transform .22s ease-out,visibility .22s;
    max-height:calc(100vh - 130px);overflow-y:auto;
  }
  body.nav-open .nav-links{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-links a{padding:13px 16px;font-size:15.5px;border-radius:14px;}
  .nav-links a.is-active{background:rgba(20,200,210,.16);color:var(--primary);box-shadow:none;}
}
@media screen and (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section--tight{padding:40px 0;}
  .section-head{margin-bottom:32px;}
  .nav-shell{height:62px;padding:0 12px;gap:10px;}
  .brand-text{font-size:15.5px;}
  .brand-text small{display:none;}
  .nav-cta .btn-primary{padding:9px 16px;font-size:13.5px;}
  .nav-links{top:88px;}
  .breadcrumb{margin-top:96px;}
  .page-hero{padding:40px 0 52px;}
  .hero-actions{gap:10px;}
  .hero-actions .btn{flex:1 1 100%;}
  .metric-grid{grid-template-columns:1fr 1fr;gap:14px;}
  .metric{padding:18px;}
  .metric .num{font-size:26px;}
  .scene-grid{grid-template-columns:1fr;}
  .scene-grid .scene:last-child{grid-column:auto;}
  .table-head{display:none;}
  .table-row{grid-template-columns:1fr 1fr;gap:8px 14px;padding:16px;}
  .table-row .g{grid-column:span 2;}
  .cta-band{padding:32px 22px;}
  .cta-form .btn{width:100%;}
  .faq-item.is-open::before{left:-10px;}
  .site-footer{margin-top:56px;padding:48px 0 24px;}
  .footer-col{margin-bottom:26px;}
  .footer-desc{max-width:100%;}
}
@media screen and (max-width:479px){
  .metric-grid{grid-template-columns:1fr;}
  .entry{flex-direction:column;}
  .entry img{width:100%;height:150px;}
  .cta-actions .btn{width:100%;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category3 */
:root{
  --bg:#071018;
  --bg-2:#0B1B28;
  --panel:#102638;
  --glass:rgba(16,38,56,.58);
  --glass-strong:rgba(16,38,56,.88);
  --line:rgba(129,224,255,.16);
  --line-strong:rgba(129,224,255,.34);
  --cyan:#14C8D2;
  --cyan-deep:#0E9FAA;
  --cyan-soft:rgba(20,200,210,.12);
  --amber:#F2A93B;
  --amber-soft:rgba(242,169,59,.14);
  --green:#35D07F;
  --green-soft:rgba(53,208,127,.14);
  --red:#FF6B57;
  --text:#EAF6FF;
  --muted:#A8C2D6;
  --weak:#6F8FA6;
  --radius-pill:999px;
  --radius-lg:18px;
  --radius-sm:12px;
  --shadow:0 18px 40px rgba(0,8,20,.35);
  --glow:0 0 24px rgba(20,200,210,.28);
  --section-y:96px;
  --container:1220px;
}
*,*::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","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Helvetica Neue",Arial,sans-serif;
  font-size:17px;
  line-height:1.9;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:
    linear-gradient(rgba(129,224,255,.045) 1px,transparent 1px),
    linear-gradient(90deg,rgba(129,224,255,.045) 1px,transparent 1px);
  background-size:76px 76px;
  pointer-events:none;
  z-index:0;
}
body::after{
  content:"";
  position:fixed;
  top:-20%;
  right:-15%;
  width:620px;
  height:620px;
  background:radial-gradient(circle,rgba(20,200,210,.14),transparent 66%);
  pointer-events:none;
  z-index:0;
}
img{max-width:100%;height:auto;display:block;border:0;}
a{color:inherit;text-decoration:none;transition:color .2s ease-out;}
a:hover{color:var(--cyan);}
button{font-family:inherit;}
h1,h2,h3,h4{margin:0;line-height:1.25;font-weight:700;letter-spacing:.2px;}
p{margin:0 0 1.1em;}
p:last-child{margin-bottom:0;}
ul{margin:0;padding:0;list-style:none;}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px;}

.container{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding:0 24px;
  position:relative;
  z-index:1;
}
.section{padding:var(--section-y) 0;position:relative;z-index:1;}
.section-alt{background:linear-gradient(180deg,rgba(11,27,40,.4),rgba(7,16,24,.9));}
.section-head{max-width:760px;margin-bottom:44px;}
.section-head .eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:13px;letter-spacing:2px;color:var(--cyan);
  border:1px solid var(--line-strong);
  background:var(--cyan-soft);
  border-radius:var(--radius-pill);
  padding:5px 14px;
  margin-bottom:16px;
}
.section-head h2{
  font-size:clamp(26px,3vw,38px);
  padding-left:16px;
  position:relative;
  margin-bottom:14px;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;
  border-radius:3px;background:linear-gradient(180deg,var(--cyan),rgba(20,200,210,.15));
}
.section-head p{color:var(--muted);font-size:16px;}

/* ---------- 悬浮胶囊导航 ---------- */
.site-header{
  position:fixed;
  top:16px;left:0;right:0;
  z-index:80;
  padding:0 18px;
  pointer-events:none;
}
.nav-shell{
  pointer-events:auto;
  max-width:1180px;
  margin:0 auto;
  height:68px;
  display:flex;
  align-items:center;
  gap:18px;
  padding:0 16px 0 20px;
  border-radius:var(--radius-pill);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:0 14px 34px rgba(0,8,20,.42);
  transition:box-shadow .25s ease-out,background .25s ease-out;
}
.nav-shell:hover{box-shadow:0 18px 40px rgba(0,8,20,.55);}
.brand{display:flex;align-items:center;gap:11px;flex:0 0 auto;color:var(--text);}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;
  display:grid;place-items:center;
  border-radius:12px;
  background:linear-gradient(140deg,rgba(20,200,210,.24),rgba(16,38,56,.9));
  border:1px solid var(--line-strong);
  color:var(--cyan);
}
.brand-mark svg{width:21px;height:21px;}
.brand-text{display:flex;flex-direction:column;line-height:1.15;font-weight:700;font-size:17px;}
.brand-text small{font-size:11px;font-weight:400;color:var(--weak);letter-spacing:1.5px;margin-top:2px;}
.nav-links{
  display:flex;align-items:center;gap:2px;
  margin-left:auto;
  flex-wrap:nowrap;
}
.nav-links a{
  display:inline-block;
  font-size:14.5px;
  color:var(--muted);
  padding:8px 13px;
  border-radius:var(--radius-pill);
  white-space:nowrap;
  position:relative;
  transition:color .2s ease-out,background .2s ease-out;
}
.nav-links a::after{
  content:"";
  position:absolute;left:50%;bottom:3px;
  width:0;height:2px;border-radius:2px;
  background:var(--cyan);
  transform:translateX(-50%);
  transition:width .22s ease-out;
  box-shadow:var(--glow);
}
.nav-links a:hover{color:var(--text);background:rgba(129,224,255,.07);}
.nav-links a:hover::after{width:22px;}
.nav-links a.is-active{color:var(--text);background:var(--cyan-soft);}
.nav-links a.is-active::after{width:22px;}
.nav-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto;margin-left:6px;}
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border-radius:14px;
  border:1px solid var(--line-strong);
  background:rgba(16,38,56,.6);
  cursor:pointer;
  position:relative;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;transform:translateX(-50%);
  width:18px;height:2px;border-radius:2px;background:var(--text);
  transition:transform .22s ease-out,opacity .22s ease-out;
}
.nav-toggle span{top:50%;margin-top:-1px;}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;}
body.nav-open .nav-toggle span{background:transparent;}
body.nav-open .nav-toggle span::before{transform:rotate(45deg);top:0;}
body.nav-open .nav-toggle span::after{transform:rotate(-45deg);top:0;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-size:15px;font-weight:600;line-height:1;
  padding:13px 24px;
  border-radius:var(--radius-pill);
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background .2s ease-out,border-color .2s ease-out,color .2s ease-out;
}
.btn-primary{
  background:linear-gradient(135deg,var(--cyan),var(--cyan-deep));
  color:#04161C;
  box-shadow:var(--glow);
}
.btn-primary:hover{
  color:#04161C;
  transform:translateY(-2px);
  box-shadow:0 0 34px rgba(20,200,210,.5);
}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 18px rgba(20,200,210,.4);}
.btn-ghost{
  background:rgba(16,38,56,.55);
  border-color:var(--line-strong);
  color:var(--text);
}
.btn-ghost:hover{background:rgba(20,200,210,.14);color:var(--text);transform:translateY(-2px);}
.btn-amber{
  background:linear-gradient(135deg,var(--amber),#D78A20);
  color:#1B1204;
  box-shadow:0 0 22px rgba(242,169,59,.28);
}
.btn-amber:hover{color:#1B1204;transform:translateY(-2px);box-shadow:0 0 30px rgba(242,169,59,.42);}
.btn-sm{padding:10px 18px;font-size:14px;}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;transform:none;box-shadow:none;}
.btn.is-loading{position:relative;color:transparent;}
.btn.is-loading::after{
  content:"";position:absolute;width:16px;height:16px;border-radius:50%;
  border:2px solid rgba(4,22,28,.35);border-top-color:#04161C;
  animation:spin .7s linear infinite;
}
@keyframes spin{to{transform:rotate(360deg);}}
.link-arrow{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--cyan);font-size:14.5px;font-weight:600;
}
.link-arrow svg{width:15px;height:15px;transition:transform .2s ease-out;}
.link-arrow:hover svg{transform:translateX(4px);}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;
  padding:158px 0 84px;
  overflow:hidden;
  background-image:url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  z-index:1;
}
.page-hero::after{
  content:"";
  position:absolute;inset:0;
  background:linear-gradient(100deg,rgba(7,16,24,.94) 6%,rgba(7,16,24,.78) 48%,rgba(7,16,24,.9) 100%);
  z-index:0;
}
.page-hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,1fr);gap:52px;align-items:center;}
.breadcrumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  font-size:13px;color:var(--weak);
  margin-bottom:22px;
}
.breadcrumb a{color:var(--weak);}
.breadcrumb a:hover{color:var(--cyan);}
.breadcrumb .sep{opacity:.5;}
.breadcrumb .current{color:var(--cyan);}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.2;
  margin-bottom:20px;
}
.page-hero h1 em{
  font-style:normal;
  color:var(--cyan);
  text-shadow:0 0 26px rgba(20,200,210,.35);
}
.hero-sub{color:var(--muted);font-size:17px;max-width:620px;margin-bottom:26px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:30px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  font-size:12.5px;line-height:1;
  padding:7px 13px;
  border-radius:var(--radius-pill);
  border:1px solid var(--line-strong);
  background:rgba(16,38,56,.55);
  color:var(--muted);
}
.badge-cyan{border-color:rgba(20,200,210,.42);background:var(--cyan-soft);color:var(--cyan);}
.badge-amber{border-color:rgba(242,169,59,.42);background:var(--amber-soft);color:var(--amber);}
.badge-green{border-color:rgba(53,208,127,.4);background:var(--green-soft);color:var(--green);}
.hero-panel{
  border-radius:var(--radius-lg);
  background:var(--glass);
  border:1px solid var(--line);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow);
  padding:26px;
}
.hero-panel h3{font-size:18px;margin-bottom:6px;}
.hero-panel .panel-note{font-size:13.5px;color:var(--weak);margin-bottom:18px;}
.panel-list li{
  display:flex;align-items:flex-start;gap:12px;
  padding:13px 0;
  border-bottom:1px dashed rgba(129,224,255,.14);
}
.panel-list li:last-child{border-bottom:0;padding-bottom:0;}
.panel-dot{
  width:26px;height:26px;flex:0 0 26px;margin-top:4px;
  border-radius:9px;display:grid;place-items:center;
  background:var(--cyan-soft);color:var(--cyan);
  font-size:12px;font-weight:700;
}
.panel-list b{display:block;font-size:15px;font-weight:600;}
.panel-list span{font-size:13.5px;color:var(--weak);line-height:1.7;}

/* ---------- 筛选标签 ---------- */
.filter-bar{
  display:flex;flex-wrap:wrap;gap:10px;
  padding:16px;
  border-radius:var(--radius-pill);
  background:var(--glass);
  border:1px solid var(--line);
  margin-bottom:12px;
}
.filter-bar a{
  font-size:14px;
  padding:9px 18px;
  border-radius:var(--radius-pill);
  color:var(--muted);
  border:1px solid transparent;
  transition:all .2s ease-out;
}
.filter-bar a:hover{color:var(--text);background:rgba(129,224,255,.08);}
.filter-bar a.is-active{
  color:#04161C;
  background:linear-gradient(135deg,var(--cyan),var(--cyan-deep));
  box-shadow:var(--glow);
  font-weight:600;
}
.filter-hint{font-size:13.5px;color:var(--weak);margin-bottom:38px;}

/* ---------- 礼包卡片墙 ---------- */
.wall-group{margin-bottom:56px;}
.wall-group:last-child{margin-bottom:0;}
.wall-group-head{
  display:flex;align-items:center;gap:14px;
  margin-bottom:24px;
  flex-wrap:wrap;
}
.wall-group-head h3{font-size:22px;}
.wall-group-head .line{
  flex:1 1 60px;height:1px;
  background:linear-gradient(90deg,var(--line-strong),transparent);
}
.gift-wall{
  display:grid;
  grid-template-columns:repeat(3,minmax(0,1fr));
  gap:24px;
  align-items:start;
}
.gift-card{
  border-radius:var(--radius-lg);
  background:var(--glass);
  border:1px solid var(--line);
  overflow:hidden;
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  box-shadow:var(--shadow);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
  display:flex;flex-direction:column;
}
.gift-card:hover{
  transform:translateY(-4px);
  border-color:var(--line-strong);
  box-shadow:0 24px 48px rgba(0,8,20,.5);
}
.gift-thumb{position:relative;overflow:hidden;background:var(--bg-2);}
.gift-thumb img{width:100%;height:100%;object-fit:cover;}
.ratio-wide{aspect-ratio:16/9;}
.ratio-tall{aspect-ratio:4/3;}
.ratio-square{aspect-ratio:1/1;}
.gift-thumb .thumb-tag{
  position:absolute;top:12px;left:12px;
  font-size:12px;padding:5px 12px;
  border-radius:var(--radius-pill);
  background:rgba(7,16,24,.78);
  border:1px solid var(--line-strong);
  color:var(--cyan);
  backdrop-filter:blur(6px);
}
.gift-body{padding:20px 22px 22px;display:flex;flex-direction:column;gap:12px;flex:1;}
.gift-body h3{font-size:19px;line-height:1.4;}
.gift-meta{display:flex;flex-wrap:wrap;gap:8px;}
.gift-desc{font-size:14.5px;color:var(--muted);line-height:1.8;}
.gift-items{
  font-size:13.5px;color:var(--muted);
  border-radius:var(--radius-sm);
  background:rgba(7,16,24,.5);
  border:1px dashed rgba(129,224,255,.18);
  padding:12px 14px;
}
.gift-items b{color:var(--text);font-weight:600;}
.gift-foot{
  margin-top:auto;
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding-top:14px;
  border-top:1px solid rgba(129,224,255,.12);
}
.gift-time{font-size:13px;color:var(--weak);}
.gift-card.is-featured{
  border-color:rgba(242,169,59,.38);
  background:linear-gradient(160deg,rgba(242,169,59,.1),var(--glass) 42%);
}

/* ---------- 领取流程 ---------- */
.flow-grid{
  display:grid;
  grid-template-columns:repeat(5,minmax(0,1fr));
  gap:18px;
}
.flow-step{
  position:relative;
  padding:26px 20px;
  border-radius:var(--radius-lg);
  background:var(--glass);
  border:1px solid var(--line);
  transition:transform .22s ease-out,border-color .22s ease-out;
}
.flow-step:hover{transform:translateY(-3px);border-color:var(--line-strong);}
.flow-step .step-num{
  display:inline-grid;place-items:center;
  width:34px;height:34px;border-radius:11px;
  font-size:14px;font-weight:700;
  background:var(--cyan-soft);color:var(--cyan);
  border:1px solid rgba(20,200,210,.35);
  margin-bottom:16px;
}
.flow-step h3{font-size:16.5px;margin-bottom:8px;}
.flow-step p{font-size:14px;color:var(--muted);}

/* ---------- 规则说明（左图右文） ---------- */
.rule-grid{
  display:grid;
  grid-template-columns:minmax(0,1fr) minmax(0,1.1fr);
  gap:52px;
  align-items:center;
}
.rule-figure{
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--line);
  box-shadow:var(--shadow);
  position:relative;
}
.rule-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.rule-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;
  padding:14px 18px;
  font-size:13px;color:var(--muted);
  background:linear-gradient(0deg,rgba(7,16,24,.94),transparent);
}
.rule-list li{
  display:flex;gap:14px;
  padding:16px 0;
  border-bottom:1px solid rgba(129,224,255,.1);
}
.rule-list li:last-child{border-bottom:0;}
.rule-key{
  flex:0 0 74px;
  font-size:13px;font-weight:600;color:var(--amber);
  letter-spacing:.5px;
}
.rule-list b{display:block;font-size:16px;margin-bottom:4px;}
.rule-list span{font-size:14.5px;color:var(--muted);}

/* ---------- 指标条 ---------- */
.metric-strip{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
  gap:20px;
  padding:30px;
  border-radius:var(--radius-lg);
  background:linear-gradient(120deg,rgba(20,200,210,.1),rgba(16,38,56,.7));
  border:1px solid var(--line);
}
.metric-item{border-left:2px solid rgba(20,200,210,.4);padding-left:16px;}
.metric-item strong{display:block;font-size:26px;color:var(--cyan);line-height:1.3;}
.metric-item span{font-size:13.5px;color:var(--muted);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:900px;margin:0 auto;}
.faq-list .accordion-item{
  border-radius:var(--radius-sm);
  border:1px solid var(--line);
  background:var(--glass);
  margin-bottom:12px;
  overflow:hidden;
  transition:border-color .22s ease-out;
}
.faq-list .accordion-item.is-open{border-color:var(--line-strong);}
.faq-list .accordion-title{
  width:100%;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;
  background:transparent;
  border:0;
  color:var(--text);
  font-size:16.5px;
  font-weight:600;
  text-align:left;
  cursor:pointer;
  position:relative;
  line-height:1.6;
}
.faq-list .accordion-title:hover{color:var(--cyan);}
.faq-list .accordion-item.is-open .accordion-title{color:var(--cyan);}
.faq-list .accordion-title::before{
  content:"";
  position:absolute;left:0;top:16px;bottom:16px;width:3px;
  background:var(--cyan);border-radius:3px;
  opacity:0;transition:opacity .22s ease-out;
}
.faq-list .accordion-item.is-open .accordion-title::before{opacity:1;}
.faq-icon{
  flex:0 0 24px;width:24px;height:24px;position:relative;
  border-radius:50%;border:1px solid var(--line-strong);
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;left:50%;top:50%;
  background:var(--cyan);border-radius:2px;
  transform:translate(-50%,-50%);
  transition:transform .22s ease-out,opacity .22s ease-out;
}
.faq-icon::before{width:10px;height:1.6px;}
.faq-icon::after{width:1.6px;height:10px;}
.accordion-item.is-open .faq-icon::after{opacity:0;transform:translate(-50%,-50%) scale(0.4);}
.faq-list .accordion-content{max-height:0;overflow:hidden;transition:max-height .28s ease-out;}
.faq-body{
  padding:0 22px 20px 22px;
  font-size:15px;color:var(--muted);line-height:1.85;
  border-top:1px solid rgba(129,224,255,.1);
  padding-top:16px;
}

/* ---------- 订阅 CTA ---------- */
.cta-band{
  border-radius:22px;
  border:1px solid var(--line-strong);
  background:linear-gradient(120deg,rgba(20,200,210,.16),rgba(16,38,56,.82) 55%,rgba(242,169,59,.12));
  padding:52px 44px;
  display:grid;
  grid-template-columns:minmax(0,1.15fr) minmax(0,1fr);
  gap:44px;
  align-items:center;
  box-shadow:var(--shadow);
  position:relative;
  overflow:hidden;
}
.cta-band::before{
  content:"";position:absolute;right:-80px;top:-80px;
  width:280px;height:280px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,200,210,.22),transparent 68%);
}
.cta-band h2{font-size:clamp(24px,2.8vw,34px);margin-bottom:14px;position:relative;}
.cta-band p{color:var(--muted);font-size:15.5px;position:relative;}
.cta-form{position:relative;}
.field{margin-bottom:14px;}
.field label{display:block;font-size:13.5px;color:var(--muted);margin-bottom:8px;}
.field input[type="email"]{
  width:100%;
  padding:14px 18px;
  border-radius:var(--radius-sm);
  background:rgba(7,16,24,.72);
  border:1px solid var(--line-strong);
  color:var(--text);
  font-size:15px;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field input[type="email"]::placeholder{color:var(--weak);}
.field input[type="email"]:focus{
  outline:none;
  border-color:var(--cyan);
  box-shadow:0 0 0 3px rgba(20,200,210,.18),var(--glow);
}
.field input.is-error{border-color:var(--red);box-shadow:0 0 0 3px rgba(255,107,87,.16);}
.field-msg{font-size:12.5px;color:var(--weak);margin-top:8px;}
.field-msg.is-error{color:var(--red);}
.field-msg.is-ok{color:var(--green);}
.cta-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:6px;}
.form-note{font-size:12.5px;color:var(--weak);margin-top:14px;line-height:1.7;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:20px;
  padding:64px 0 26px;
  border-top:1px solid var(--line);
  background:linear-gradient(180deg,rgba(11,27,40,.72),rgba(7,16,24,.98));
  position:relative;
  z-index:1;
}
.footer-brand{
  display:flex;align-items:center;gap:12px;
  font-size:19px;font-weight:700;
  margin-bottom:16px;
}
.footer-desc{font-size:14.5px;color:var(--muted);max-width:420px;}
.footer-col h4{
  font-size:15px;margin-bottom:16px;
  color:var(--text);
  padding-left:10px;position:relative;
}
.footer-col h4::before{
  content:"";position:absolute;left:0;top:5px;bottom:5px;width:2px;
  border-radius:2px;background:var(--cyan);
}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul a{font-size:14.5px;color:var(--muted);}
.footer-col ul a:hover{color:var(--cyan);padding-left:3px;}
.footer-contact li{font-size:14px;color:var(--muted);margin-bottom:11px;line-height:1.7;}
.footer-contact b{color:var(--text);font-weight:600;}
.footer-bottom{
  margin-top:44px;padding-top:22px;
  border-top:1px solid rgba(129,224,255,.12);
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:14px;
  font-size:13.5px;color:var(--weak);
}
.to-top{
  border:1px solid var(--line-strong);
  background:rgba(16,38,56,.6);
  color:var(--muted);
  border-radius:var(--radius-pill);
  padding:9px 18px;
  font-size:13.5px;
  cursor:pointer;
  transition:all .2s ease-out;
}
.to-top:hover{color:var(--cyan);border-color:rgba(20,200,210,.5);transform:translateY(-2px);}

/* ---------- 响应式 ---------- */
@media (max-width:1023px){
  :root{--section-y:72px;}
  .nav-links{display:none;}
  .nav-toggle{display:block;}
  body.nav-open .nav-links{
    display:flex;
    flex-direction:column;
    align-items:stretch;
    position:fixed;
    left:16px;right:16px;
    top:96px;
    max-height:calc(100vh - 130px);
    overflow-y:auto;
    padding:16px;
    gap:4px;
    border-radius:22px;
    background:var(--glass-strong);
    border:1px solid var(--line-strong);
    backdrop-filter:blur(20px);
    -webkit-backdrop-filter:blur(20px);
    box-shadow:0 24px 50px rgba(0,8,20,.6);
  }
  body.nav-open .nav-links a{
    padding:14px 16px;
    border-radius:14px;
    font-size:15.5px;
  }
  body.nav-open .nav-links a::after{display:none;}
  body.nav-open .nav-links a.is-active{background:var(--cyan-soft);color:var(--cyan);}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .gift-wall{grid-template-columns:repeat(2,minmax(0,1fr));}
  .flow-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
  .rule-grid{grid-template-columns:1fr;gap:34px;}
  .metric-strip{grid-template-columns:repeat(2,minmax(0,1fr));gap:16px;padding:24px;}
  .cta-band{grid-template-columns:1fr;gap:30px;padding:40px 30px;}
  .page-hero{padding:132px 0 68px;}
}
@media (max-width:767px){
  :root{--section-y:48px;}
  body{font-size:16px;}
  .container{padding:0 16px;}
  .site-header{padding:0 12px;top:12px;}
  .nav-shell{height:60px;padding:0 12px 0 14px;gap:10px;}
  .brand-text{font-size:15.5px;}
  .brand-text small{display:none;}
  .nav-cta .btn{padding:10px 16px;font-size:13.5px;}
  .page-hero{padding:110px 0 52px;}
  .page-hero h1{font-size:clamp(28px,7.4vw,36px);}
  .gift-wall{grid-template-columns:1fr;}
  .flow-grid{grid-template-columns:1fr;}
  .metric-strip{grid-template-columns:1fr;}
  .filter-bar{border-radius:18px;padding:12px;}
  .filter-bar a{padding:8px 14px;font-size:13.5px;}
  .cta-band{padding:30px 22px;border-radius:18px;}
  .hero-actions .btn{width:100%;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  body::before{background-size:56px 56px;}
}
@media (max-width:479px){
  .gift-body{padding:16px 16px 18px;}
  .rule-key{flex:0 0 62px;font-size:12px;}
  .faq-list .accordion-title{padding:16px 16px;font-size:15.5px;}
  .faq-body{padding:0 16px 18px;padding-top:14px;}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:.01ms !important;transition-duration:.01ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category5 */
:root{
  --bg:#071018;
  --bg-2:#0B1B28;
  --panel:#102638;
  --brand:#14C8D2;
  --brand-deep:#0E9AA3;
  --amber:#F2A93B;
  --green:#35D07F;
  --red:#FF6B57;
  --text:#EAF6FF;
  --text-2:#A8C2D6;
  --text-3:#6F8FA6;
  --glass:rgba(16,38,56,.58);
  --glass-strong:rgba(11,27,40,.78);
  --line:rgba(129,224,255,.16);
  --line-strong:rgba(129,224,255,.30);
  --radius-pill:999px;
  --radius-l:18px;
  --radius-s:12px;
  --shadow:0 18px 40px rgba(0,8,20,.35);
  --glow:0 0 24px rgba(20,200,210,.28);
  --sec:96px;
  --font:"PingFang SC","Microsoft YaHei","Hiragino Sans GB","Source Han Sans SC","Noto Sans SC",system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth;}
body{
  margin:0;
  font-family:var(--font);
  font-size:17px;
  line-height:1.9;
  color:var(--text);
  background-color:var(--bg);
  background-image:
    linear-gradient(rgba(129,224,255,.035) 1px,transparent 1px),
    linear-gradient(90deg,rgba(129,224,255,.035) 1px,transparent 1px),
    radial-gradient(900px 520px at 82% -8%,rgba(20,200,210,.16),transparent 62%),
    radial-gradient(760px 480px at 6% 18%,rgba(242,169,59,.10),transparent 60%);
  background-size:64px 64px,64px 64px,auto,auto;
  background-attachment:fixed,fixed,scroll,scroll;
}
img{max-width:100%;height:auto;display:block;}
a{color:var(--brand);text-decoration:none;transition:color .2s ease-out,opacity .2s ease-out;}
a:hover{color:#7DEAF0;}
button{font-family:inherit;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px;}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.2px;}
p{margin:0 0 1.1em;}
ul{margin:0;padding:0;list-style:none;}
.container{width:100%;max-width:1240px;margin:0 auto;padding:0 24px;}
.section{padding:var(--sec) 0;}
.section--tight{padding:72px 0;}
.section--panel{background:linear-gradient(180deg,rgba(11,27,40,.72),rgba(7,16,24,.35));border-top:1px solid var(--line);border-bottom:1px solid var(--line);}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 26px;border-radius:var(--radius-pill);
  font-size:15px;font-weight:600;line-height:1;letter-spacing:.4px;
  border:1px solid transparent;cursor:pointer;white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out,border-color .2s ease-out,color .2s ease-out;
}
.btn-primary{background:linear-gradient(135deg,#19D6E0,#0FA3AE);color:#04202A;box-shadow:var(--glow);}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 32px rgba(20,200,210,.45);color:#04202A;}
.btn-primary:active{transform:translateY(0);box-shadow:0 0 16px rgba(20,200,210,.35);}
.btn-ghost{background:rgba(16,38,56,.55);border-color:var(--line-strong);color:var(--text);backdrop-filter:blur(12px);}
.btn-ghost:hover{transform:translateY(-2px);border-color:var(--brand);color:#fff;background:rgba(20,200,210,.14);}
.btn-amber{background:linear-gradient(135deg,#F7BC5C,#E29424);color:#26170A;box-shadow:0 0 22px rgba(242,169,59,.28);}
.btn-amber:hover{transform:translateY(-2px);box-shadow:0 0 30px rgba(242,169,59,.42);color:#26170A;}
.btn-line{background:transparent;color:var(--brand);padding:8px 0;border-radius:0;font-weight:600;}
.btn-line::after{content:"→";margin-left:6px;transition:transform .2s ease-out;}
.btn-line:hover::after{transform:translateX(4px);}
.btn[disabled],.btn.is-disabled{opacity:.45;cursor:not-allowed;box-shadow:none;transform:none;}
.btn.is-loading{color:transparent;position:relative;pointer-events:none;}
.btn.is-loading::after{
  content:"";position:absolute;width:18px;height:18px;border-radius:50%;
  border:2px solid rgba(4,32,42,.35);border-top-color:#04202A;animation:spin .8s linear infinite;margin:0;
}
@keyframes spin{to{transform:rotate(360deg);}}

/* ---------- 导航 ---------- */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:200;padding:0 16px;}
.nav-shell{
  max-width:1180px;margin:0 auto;min-height:68px;
  display:flex;align-items:center;gap:16px;
  padding:10px 16px 10px 18px;
  border-radius:var(--radius-pill);
  background:rgba(11,27,40,.74);
  border:1px solid var(--line);
  box-shadow:0 14px 34px rgba(0,8,20,.42);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
}
.brand{display:flex;align-items:center;gap:11px;color:var(--text);flex:0 0 auto;}
.brand:hover{color:var(--text);}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  color:var(--brand);
  background:linear-gradient(140deg,rgba(20,200,210,.22),rgba(242,169,59,.14));
  border:1px solid var(--line-strong);
}
.brand-mark svg{width:21px;height:21px;}
.brand-text{display:flex;flex-direction:column;font-size:17px;font-weight:700;letter-spacing:1px;line-height:1.2;}
.brand-text small{font-size:11px;font-weight:400;color:var(--text-3);letter-spacing:2px;}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto;}
.nav-links a{
  position:relative;padding:9px 13px;border-radius:var(--radius-pill);
  font-size:15px;color:var(--text-2);transition:color .2s ease-out,background-color .2s ease-out,box-shadow .2s ease-out;
}
.nav-links a:hover{color:#fff;background:rgba(129,224,255,.09);}
.nav-links a.is-active{
  color:var(--brand);background:rgba(20,200,210,.12);
  box-shadow:inset 0 0 0 1px rgba(20,200,210,.35),0 0 18px rgba(20,200,210,.20);
}
.nav-cta{display:flex;align-items:center;gap:10px;margin-left:12px;flex:0 0 auto;}
.nav-cta .btn{padding:11px 20px;font-size:14px;}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:50%;
  background:rgba(16,38,56,.7);border:1px solid var(--line);
  position:relative;cursor:pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after{
  position:absolute;left:50%;top:50%;width:18px;height:2px;border-radius:2px;background:var(--text);transform:translate(-50%,-50%);
  transition:transform .2s ease-out,opacity .2s ease-out;
}
.nav-toggle span::before{content:"";transform:translate(-50%,-7px);}
.nav-toggle span::after{content:"";transform:translate(-50%,5px);}
.nav-toggle[aria-expanded="true"] span{background:transparent;}
.nav-toggle[aria-expanded="true"] span::before{transform:translate(-50%,0) rotate(45deg);}
.nav-toggle[aria-expanded="true"] span::after{transform:translate(-50%,0) rotate(-45deg);}

/* ---------- 面包屑 ---------- */
.crumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:13px;color:var(--text-3);margin-bottom:20px;}
.crumb a{color:var(--text-2);}
.crumb a:hover{color:var(--brand);}
.crumb span.sep{color:rgba(111,143,166,.6);}
.crumb .current{color:var(--amber);}

/* ---------- Hero ---------- */
.cat-hero{
  position:relative;padding:158px 0 88px;overflow:hidden;
  background-image:url("/assets/images/backpic/back-1.png");
  background-size:cover;background-position:center;
}
.cat-hero::before{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,16,24,.90),rgba(7,16,24,.94) 55%,rgba(7,16,24,.99));
}
.cat-hero .container{position:relative;z-index:2;}
.hero-grid{display:grid;grid-template-columns:minmax(0,1.35fr) minmax(0,.9fr);gap:40px;align-items:center;}
.eyebrow{
  display:inline-flex;align-items:center;gap:9px;padding:7px 15px;border-radius:var(--radius-pill);
  font-size:13px;letter-spacing:1px;color:var(--amber);
  background:rgba(242,169,59,.10);border:1px solid rgba(242,169,59,.32);
}
.eyebrow i{width:6px;height:6px;border-radius:50%;background:var(--amber);display:block;box-shadow:0 0 10px rgba(242,169,59,.8);}
.cat-hero h1{
  font-size:clamp(30px,4.4vw,52px);margin:20px 0 18px;letter-spacing:1px;
}
.cat-hero h1 em{font-style:normal;color:var(--brand);text-shadow:0 0 26px rgba(20,200,210,.35);}
.lead{font-size:17px;color:var(--text-2);max-width:640px;margin-bottom:24px;}
.hero-tags{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px;}
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:var(--radius-pill);font-size:12.5px;letter-spacing:.5px;
  background:rgba(16,38,56,.6);border:1px solid var(--line);color:var(--text-2);
}
.tag.is-brand{color:var(--brand);border-color:rgba(20,200,210,.36);background:rgba(20,200,210,.10);}
.tag.is-amber{color:var(--amber);border-color:rgba(242,169,59,.34);background:rgba(242,169,59,.10);}
.tag.is-green{color:var(--green);border-color:rgba(53,208,127,.32);background:rgba(53,208,127,.08);}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;}
.hero-panel{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--radius-l);
  padding:26px;backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow);
}
.hero-panel h2{font-size:16px;letter-spacing:1px;color:var(--text-2);font-weight:600;margin-bottom:18px;}
.panel-item{display:flex;gap:14px;padding:14px 0;border-bottom:1px dashed rgba(129,224,255,.16);}
.panel-item:last-child{border-bottom:0;padding-bottom:0;}
.panel-num{
  flex:0 0 42px;height:42px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  font-size:14px;font-weight:700;color:var(--brand);
  background:rgba(20,200,210,.12);border:1px solid rgba(20,200,210,.3);
}
.panel-item strong{display:block;font-size:15px;color:var(--text);font-weight:600;}
.panel-item p{margin:4px 0 0;font-size:13.5px;line-height:1.7;color:var(--text-3);}

/* ---------- 通用板块头 ---------- */
.sec-head{max-width:760px;margin-bottom:44px;}
.sec-head h2{font-size:clamp(24px,3.1vw,36px);position:relative;padding-left:18px;}
.sec-head h2::before{
  content:"";position:absolute;left:0;top:8px;bottom:8px;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--brand),rgba(20,200,210,.15));
}
.sec-head p{margin:14px 0 0;color:var(--text-2);font-size:16.5px;max-width:700px;}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}
.sec-head.center h2{padding-left:0;}
.sec-head.center h2::before{display:none;}

/* ---------- 图文双栏 ---------- */
.split{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.08fr);gap:48px;align-items:center;}
.figure-card{
  border-radius:var(--radius-l);overflow:hidden;border:1px solid var(--line);
  background:var(--panel);box-shadow:var(--shadow);position:relative;
}
.figure-card img{width:100%;aspect-ratio:4/3;object-fit:cover;}
.figure-card figcaption{
  padding:14px 18px;font-size:13px;color:var(--text-3);
  background:rgba(7,16,24,.7);border-top:1px solid var(--line);
}
.check-list li{
  display:flex;gap:13px;padding:13px 0;border-bottom:1px solid rgba(129,224,255,.10);
  font-size:16px;color:var(--text-2);
}
.check-list li:last-child{border-bottom:0;}
.check-list b{color:var(--text);font-weight:600;}
.check-icon{
  flex:0 0 26px;height:26px;border-radius:50%;margin-top:3px;
  display:flex;align-items:center;justify-content:center;
  color:var(--green);background:rgba(53,208,127,.12);border:1px solid rgba(53,208,127,.3);font-size:13px;
}

/* ---------- 对比表 ---------- */
.table-scroll{
  overflow-x:auto;border-radius:var(--radius-l);border:1px solid var(--line);
  background:rgba(11,27,40,.62);backdrop-filter:blur(14px);
  box-shadow:var(--shadow);-webkit-overflow-scrolling:touch;
}
table.compare{width:100%;min-width:820px;border-collapse:collapse;font-size:15px;}
table.compare thead th{
  text-align:left;padding:18px 20px;font-size:13.5px;letter-spacing:1px;
  color:var(--brand);font-weight:600;background:rgba(20,200,210,.10);
  border-bottom:1px solid var(--line-strong);white-space:nowrap;
}
table.compare tbody td{
  padding:18px 20px;color:var(--text-2);border-bottom:1px solid rgba(129,224,255,.10);vertical-align:top;line-height:1.75;
}
table.compare tbody tr:nth-child(even){background:rgba(16,38,56,.36);}
table.compare tbody tr:hover{background:rgba(20,200,210,.08);}
table.compare tbody td:first-child{
  color:var(--text);font-weight:600;border-left:3px solid var(--brand);
  background:linear-gradient(90deg,rgba(20,200,210,.10),transparent);
  white-space:nowrap;
}
table.compare tbody tr:last-child td{border-bottom:0;}
.table-note{margin-top:14px;font-size:13px;color:var(--text-3);}

/* ---------- 流程步骤 ---------- */
.steps{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:22px;}
.step{
  position:relative;padding:28px 22px;border-radius:var(--radius-l);
  background:var(--glass);border:1px solid var(--line);backdrop-filter:blur(16px);
  transition:transform .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.step:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow);}
.step-no{
  font-size:13px;font-weight:700;letter-spacing:2px;color:var(--amber);
  display:inline-block;margin-bottom:14px;
}
.step h3{font-size:19px;margin-bottom:10px;}
.step p{margin:0;font-size:14.5px;color:var(--text-3);line-height:1.8;}

/* ---------- 提示条 / 指标卡 ---------- */
.metrics{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:22px;}
.metric{
  padding:26px;border-radius:var(--radius-l);
  background:linear-gradient(160deg,rgba(16,38,56,.72),rgba(11,27,40,.5));
  border:1px solid var(--line);backdrop-filter:blur(14px);
  transition:transform .2s ease-out,border-color .2s ease-out;
}
.metric:hover{transform:translateY(-3px);border-color:var(--line-strong);}
.metric .num{font-size:30px;font-weight:700;color:var(--brand);letter-spacing:1px;}
.metric .num small{font-size:14px;color:var(--text-3);font-weight:400;margin-left:6px;letter-spacing:0;}
.metric h3{font-size:17px;margin:12px 0 8px;}
.metric p{margin:0;font-size:14.5px;color:var(--text-3);line-height:1.8;}
.notice{
  display:flex;gap:14px;padding:20px 22px;border-radius:var(--radius-s);
  background:rgba(242,169,59,.08);border:1px solid rgba(242,169,59,.28);
  color:var(--text-2);font-size:15px;line-height:1.8;
}
.notice svg{flex:0 0 22px;margin-top:3px;color:var(--amber);}

/* ---------- FAQ ---------- */
.faq-wrap{max-width:920px;margin:0 auto;}
.accordion{border:1px solid var(--line);border-radius:var(--radius-l);overflow:hidden;background:rgba(11,27,40,.6);backdrop-filter:blur(14px);}
.accordion-item{border-bottom:1px solid rgba(129,224,255,.12);position:relative;}
.accordion-item:last-child{border-bottom:0;}
.accordion-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;background:transparent;transition:background-color .2s ease-out;
}
.accordion-item.is-open::before{background:var(--brand);box-shadow:0 0 14px rgba(20,200,210,.6);}
.accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:18px;width:100%;
  padding:22px 26px;background:transparent;border:0;cursor:pointer;text-align:left;
  font-size:17px;font-weight:600;color:var(--text);line-height:1.6;
  transition:color .2s ease-out,background-color .2s ease-out;
}
.accordion-title:hover{color:var(--brand);background:rgba(20,200,210,.06);}
.accordion-title .plus{
  flex:0 0 26px;height:26px;border-radius:50%;position:relative;
  border:1px solid var(--line-strong);transition:transform .25s ease-out,border-color .25s ease-out;
}
.accordion-title .plus::before,
.accordion-title .plus::after{
  content:"";position:absolute;left:50%;top:50%;width:11px;height:2px;background:var(--brand);transform:translate(-50%,-50%);border-radius:2px;
}
.accordion-title .plus::after{transform:translate(-50%,-50%) rotate(90deg);transition:transform .25s ease-out;}
.accordion-item.is-open .accordion-title{color:var(--brand);}
.accordion-item.is-open .plus{border-color:var(--brand);}
.accordion-item.is-open .plus::after{transform:translate(-50%,-50%) rotate(0deg);}
.accordion-content{max-height:0;overflow:hidden;transition:max-height .3s ease-out;}
.accordion-content p{margin:0;padding:0 26px 24px;color:var(--text-2);font-size:15.5px;line-height:1.9;}

/* ---------- CTA + 表单 ---------- */
.cta-band{
  position:relative;border-radius:24px;overflow:hidden;
  border:1px solid var(--line-strong);
  background:linear-gradient(140deg,rgba(16,38,56,.92),rgba(11,27,40,.86));
  box-shadow:var(--shadow);
  padding:48px;
}
.cta-band::after{
  content:"";position:absolute;right:-90px;top:-90px;width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(20,200,210,.24),transparent 68%);pointer-events:none;
}
.cta-grid{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,.85fr);gap:44px;align-items:center;position:relative;z-index:2;}
.cta-band h2{font-size:clamp(23px,2.9vw,32px);margin-bottom:14px;}
.cta-band p{color:var(--text-2);margin-bottom:0;font-size:16px;}
.form-card{
  background:rgba(7,16,24,.55);border:1px solid var(--line);border-radius:var(--radius-l);
  padding:26px;backdrop-filter:blur(16px);
}
.field{margin-bottom:16px;}
.field label{display:block;font-size:13.5px;color:var(--text-2);margin-bottom:8px;letter-spacing:.4px;}
.field input,.field select,.field textarea{
  width:100%;padding:13px 15px;border-radius:var(--radius-s);
  background:rgba(16,38,56,.72);border:1px solid var(--line);
  color:var(--text);font-size:15px;font-family:inherit;line-height:1.6;
  transition:border-color .2s ease-out,box-shadow .2s ease-out,background-color .2s ease-out;
}
.field textarea{min-height:92px;resize:vertical;}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3);}
.field input:focus,.field select:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);background:rgba(16,38,56,.92);
  box-shadow:0 0 0 3px rgba(20,200,210,.16),var(--glow);
}
.form-tip{font-size:12.5px;color:var(--text-3);line-height:1.7;margin:14px 0 0;}
.form-msg{font-size:14px;margin-top:12px;display:none;}
.form-msg.ok{display:block;color:var(--green);}
.form-msg.err{display:block;color:var(--red);}
.quick-links{display:flex;flex-wrap:wrap;gap:12px;margin-top:26px;}
.quick-links a{
  padding:11px 18px;border-radius:var(--radius-pill);font-size:14px;color:var(--text-2);
  background:rgba(16,38,56,.6);border:1px solid var(--line);transition:all .2s ease-out;
}
.quick-links a:hover{color:#fff;border-color:var(--brand);transform:translateY(-2px);background:rgba(20,200,210,.12);}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:20px;padding:64px 0 30px;
  background:linear-gradient(180deg,rgba(11,27,40,.6),rgba(7,16,24,.95));
  border-top:1px solid var(--line);backdrop-filter:blur(14px);
}
.footer-brand{display:flex;align-items:center;gap:12px;font-size:19px;font-weight:700;letter-spacing:1px;color:var(--text);margin-bottom:16px;}
.footer-desc{color:var(--text-3);font-size:14.5px;line-height:1.9;max-width:360px;margin-bottom:0;}
.footer-col h4{font-size:15px;color:var(--text);margin-bottom:16px;letter-spacing:1px;}
.footer-col ul li{margin-bottom:11px;}
.footer-col ul li a{color:var(--text-3);font-size:14.5px;}
.footer-col ul li a:hover{color:var(--brand);}
.footer-contact li{color:var(--text-3);font-size:14.5px;margin-bottom:11px;line-height:1.8;}
.footer-contact b{color:var(--text-2);font-weight:600;}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid rgba(129,224,255,.12);
  display:flex;flex-wrap:wrap;gap:14px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.to-top{
  padding:9px 18px;border-radius:var(--radius-pill);cursor:pointer;font-size:13px;
  background:rgba(16,38,56,.7);border:1px solid var(--line);color:var(--text-2);
  transition:all .2s ease-out;
}
.to-top:hover{color:#fff;border-color:var(--brand);box-shadow:var(--glow);}

/* ---------- 响应式 ---------- */
@media screen and (max-width:1023px){
  :root{--sec:72px;}
  .nav-links{
    position:fixed;left:16px;right:16px;top:96px;
    flex-direction:column;align-items:stretch;gap:6px;
    padding:18px;border-radius:20px;
    background:rgba(11,27,40,.94);border:1px solid var(--line-strong);
    box-shadow:0 24px 48px rgba(0,8,20,.6);backdrop-filter:blur(20px);
    max-height:calc(100vh - 130px);overflow-y:auto;
    opacity:0;visibility:hidden;transform:translateY(-10px);
    transition:opacity .2s ease-out,transform .2s ease-out,visibility .2s;
  }
  .nav-links.is-open{opacity:1;visibility:visible;transform:translateY(0);}
  .nav-links a{padding:13px 16px;font-size:16px;border-radius:12px;margin-left:0;}
  .nav-toggle{display:block;}
  .nav-cta .btn{display:none;}
  .hero-grid{grid-template-columns:1fr;gap:32px;}
  .split{grid-template-columns:1fr;gap:32px;}
  .steps{grid-template-columns:repeat(2,minmax(0,1fr));}
  .metrics{grid-template-columns:1fr;}
  .cta-grid{grid-template-columns:1fr;gap:30px;}
  .cat-hero{padding:138px 0 72px;}
}
@media screen and (max-width:767px){
  body{font-size:16px;}
  .container{padding:0 16px;}
  .section{padding:48px 0;}
  .section--tight{padding:42px 0;}
  .cat-hero{padding:126px 0 56px;}
  .steps{grid-template-columns:1fr;}
  .cta-band{padding:30px 22px;border-radius:20px;}
  .brand-text small{display:none;}
  .brand-text{font-size:16px;}
  .footer-bottom{flex-direction:column;align-items:flex-start;}
  .footer-desc{max-width:100%;}
}
@media screen and (max-width:480px){
  .cat-hero h1{font-size:29px;}
  .btn{width:100%;}
  .hero-actions .btn,.quick-links a{width:100%;}
  .quick-links a{text-align:center;}
  .accordion-title{padding:18px 18px;font-size:15.5px;}
  .accordion-content p{padding:0 18px 20px;}
  table.compare thead th,table.compare tbody td{padding:14px 15px;}
}
@media (prefers-reduced-motion:reduce){
  *{animation-duration:.001ms !important;transition-duration:.001ms !important;scroll-behavior:auto !important;}
}

/* roulang page: category4 */
:root{
  --bg:#071018;
  --bg-soft:#0B1B28;
  --panel:#102638;
  --cyan:#14C8D2;
  --amber:#F2A93B;
  --green:#35D07F;
  --red:#FF6B57;
  --text:#EAF6FF;
  --text-2:#A8C2D6;
  --text-3:#6F8FA6;
  --glass:rgba(16,38,56,.58);
  --line:rgba(129,224,255,.16);
  --line-strong:rgba(129,224,255,.32);
  --r-lg:18px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow:0 18px 40px rgba(0,8,20,.35);
  --glow:0 0 24px rgba(20,200,210,.28);
  --max:1240px;
  --gutter:24px;
}
*,*::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","Hiragino Sans GB","Source Han Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",Roboto,sans-serif;
  font-size:17px;
  line-height:1.9;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  background-image:linear-gradient(rgba(129,224,255,.055) 1px,transparent 1px),linear-gradient(90deg,rgba(129,224,255,.055) 1px,transparent 1px);
  background-size:76px 76px;
  pointer-events:none;
  z-index:0;
}
body.nav-open{overflow:hidden}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease-out,background-color .2s ease-out,border-color .2s ease-out}
a:hover{color:var(--cyan)}
h1,h2,h3,h4{margin:0;font-weight:700;line-height:1.25;letter-spacing:.01em}
p{margin:0 0 1.1em}
ul{margin:0;padding:0;list-style:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--cyan);outline-offset:3px;border-radius:6px}
.site-header,.page-hero,.section,.site-footer{position:relative;z-index:1}
.container{width:100%;max-width:var(--max);margin:0 auto;padding:0 var(--gutter)}
.grid-x{margin-left:-12px;margin-right:-12px}
.grid-x>.cell{padding-left:12px;padding-right:12px;width:100%;flex:0 0 auto}
.grid-gap-lg{margin-left:-16px;margin-right:-16px}
.grid-gap-lg>.cell{padding-left:16px;padding-right:16px}
@media screen and (min-width:768px){
  .grid-x>.cell.medium-6{width:50%}
  .grid-x>.cell.medium-12{width:100%}
}
@media screen and (max-width:1023px){
  .grid-x>.cell[class*="large-"]{width:100%}
}
@media screen and (min-width:1024px){
  .grid-x>.cell.large-3{width:25%}
  .grid-x>.cell.large-4{width:33.3333%}
  .grid-x>.cell.large-5{width:41.6667%}
  .grid-x>.cell.large-6{width:50%}
  .grid-x>.cell.large-7{width:58.3333%}
  .grid-x>.cell.large-8{width:66.6667%}
  .grid-x>.cell.large-12{width:100%}
}

/* ===== 导航 ===== */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:60;padding:0 16px}
.nav-shell{
  max-width:1180px;margin:0 auto;height:68px;
  display:flex;align-items:center;gap:16px;
  padding:0 14px 0 18px;
  border-radius:var(--r-pill);
  background:rgba(11,27,40,.74);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  border:1px solid var(--line);
  box-shadow:0 18px 40px rgba(0,8,20,.45);
}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand:hover{color:var(--text)}
.brand-mark{
  width:38px;height:38px;border-radius:12px;display:grid;place-items:center;
  color:var(--cyan);background:rgba(20,200,210,.12);
  border:1px solid rgba(20,200,210,.32);box-shadow:var(--glow);flex:0 0 auto;
}
.brand-mark svg{width:20px;height:20px}
.brand-text{display:flex;flex-direction:column;font-size:16px;font-weight:700;line-height:1.15;color:var(--text)}
.brand-text small{font-size:11px;font-weight:400;color:var(--text-3);letter-spacing:.06em;margin-top:4px}
.nav-links{display:flex;align-items:center;gap:2px;margin-left:auto}
.nav-links a{padding:9px 13px;border-radius:var(--r-pill);font-size:14.5px;color:var(--text-2);white-space:nowrap}
.nav-links a:hover{color:var(--text);background:rgba(129,224,255,.08)}
.nav-links a.is-active{
  color:var(--cyan);background:rgba(20,200,210,.13);
  box-shadow:inset 0 0 0 1px rgba(20,200,210,.32),0 0 18px rgba(20,200,210,.18);
}
.nav-cta{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.nav-toggle{display:none;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);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%);
}
.nav-toggle span{top:50%;margin-top:-1px}
.nav-toggle span::before{content:"";top:-6px;left:0;transform:none;width:18px}
.nav-toggle span::after{content:"";top:6px;left:0;transform:none;width:18px}

@media screen and (max-width:1023px){
  .nav-shell{height:62px;padding:0 12px 0 14px}
  .nav-toggle{display:block}
  .nav-links{
    position:fixed;left:16px;right:16px;top:94px;
    margin-left:0;flex-direction:column;align-items:stretch;gap:4px;
    padding:14px;border-radius:20px;
    background:rgba(7,16,24,.97);
    border:1px solid var(--line);
    box-shadow:var(--shadow);
    display:none;
    max-height:calc(100vh - 140px);overflow-y:auto;
  }
  .nav-links.is-open{display:flex}
  .nav-links a{padding:13px 16px;border-radius:14px;font-size:15.5px}
  .nav-cta .btn-primary{height:42px;padding:0 18px;font-size:14px}
}
@media screen and (max-width:520px){
  .brand-text small{display:none}
  .nav-cta .btn-primary{display:none}
}

/* ===== 按钮 ===== */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-pill);
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .2s ease-out,box-shadow .2s ease-out,color .2s ease-out,border-color .2s ease-out,background-color .2s ease-out;
}
.btn-primary{background:var(--cyan);color:#04202A;box-shadow:var(--glow)}
.btn-primary:hover{color:#04202A;transform:translateY(-2px);box-shadow:0 0 34px rgba(20,200,210,.52)}
.btn-ghost{background:rgba(16,38,56,.55);border:1px solid var(--line-strong);color:var(--text)}
.btn-ghost:hover{color:var(--cyan);border-color:var(--cyan);transform:translateY(-2px)}
.btn-amber{background:rgba(242,169,59,.14);border:1px solid rgba(242,169,59,.45);color:var(--amber)}
.btn-amber:hover{color:var(--amber);background:rgba(242,169,59,.22);transform:translateY(-2px)}
.btn:active{transform:translateY(0) scale(.985)}
.btn[disabled],.btn.is-loading{opacity:.6;cursor:not-allowed;transform:none;box-shadow:none}
.btn-text{display:inline-flex;align-items:center;gap:6px;font-size:15px;color:var(--cyan)}
.btn-text:hover{gap:10px}

/* ===== 通用 ===== */
.section{padding:96px 0}
.section-tight{padding:72px 0}
.section-head{margin-bottom:44px}
.eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12.5px;letter-spacing:.16em;color:var(--cyan);
  padding:6px 14px;border-radius:var(--r-pill);
  border:1px solid rgba(20,200,210,.3);background:rgba(20,200,210,.08);
  margin-bottom:18px;
}
.section-title{font-size:clamp(25px,3vw,36px);position:relative;padding-left:18px}
.section-title::before{
  content:"";position:absolute;left:0;top:.14em;bottom:.14em;width:4px;border-radius:4px;
  background:linear-gradient(180deg,var(--cyan),rgba(20,200,210,.15));
}
.section-lead{color:var(--text-2);max-width:780px;margin-top:16px;font-size:16.5px}
.divider{height:1px;background:var(--line);border:0;margin:0}
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:5px 12px;border-radius:var(--r-pill);font-size:12px;line-height:1.6;
  border:1px solid var(--line);color:var(--text-2);background:rgba(16,38,56,.45);
}
.badge-cyan{color:var(--cyan);border-color:rgba(20,200,210,.4);background:rgba(20,200,210,.1)}
.badge-amber{color:var(--amber);border-color:rgba(242,169,59,.4);background:rgba(242,169,59,.1)}
.badge-green{color:var(--green);border-color:rgba(53,208,127,.4);background:rgba(53,208,127,.1)}
.tag-row{display:flex;flex-wrap:wrap;gap:10px}

/* ===== 面包屑 ===== */
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:9px;font-size:13px;color:var(--text-3);margin-bottom:22px}
.breadcrumb a{color:var(--text-2)}
.breadcrumb a:hover{color:var(--cyan)}
.breadcrumb .sep{color:rgba(129,224,255,.32)}
.breadcrumb .current{color:var(--cyan)}

/* ===== Hero ===== */
.page-hero{padding:158px 0 88px;overflow:hidden}
.page-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  opacity:.5;
}
.page-hero::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(7,16,24,.78) 0%,rgba(7,16,24,.93) 58%,var(--bg) 100%);
}
.page-hero .container{position:relative;z-index:2}
.hero-grid{display:flex;align-items:center}
.page-hero h1{font-size:clamp(30px,4.2vw,50px);margin-bottom:20px}
.page-hero h1 em{font-style:normal;color:var(--cyan)}
.hero-lead{color:var(--text-2);font-size:17.5px;max-width:640px;margin-bottom:26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:26px}
.hero-panel{
  background:linear-gradient(160deg,rgba(16,38,56,.82),rgba(11,27,40,.62));
  border:1px solid var(--line-strong);
  border-radius:20px;
  padding:28px;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  box-shadow:var(--shadow);
}
.hero-panel h3{font-size:17px;margin-bottom:6px}
.hero-panel .panel-sub{font-size:13px;color:var(--text-3);margin-bottom:20px}
.panel-item{display:flex;gap:14px;padding:14px 0;border-top:1px solid var(--line)}
.panel-item:first-of-type{border-top:0;padding-top:0}
.panel-dot{
  width:34px;height:34px;flex:0 0 auto;border-radius:11px;display:grid;place-items:center;
  font-size:12px;font-weight:700;color:var(--cyan);
  background:rgba(20,200,210,.12);border:1px solid rgba(20,200,210,.3);
}
.panel-item.amber .panel-dot{color:var(--amber);background:rgba(242,169,59,.12);border-color:rgba(242,169,59,.32)}
.panel-item strong{display:block;font-size:15px;color:var(--text);margin-bottom:3px}
.panel-item span{font-size:13.5px;color:var(--text-2);line-height:1.75;display:block}

/* ===== 卡片 ===== */
.card{
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  padding:26px;
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.card h3{font-size:19px;margin-bottom:10px}
.card p{color:var(--text-2);font-size:15.5px;margin-bottom:0}

/* ===== 信息条 ===== */
.strip-list{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:18px}
.info-strip{
  display:flex;gap:16px;align-items:flex-start;
  padding:20px 22px;border-radius:14px;
  background:rgba(16,38,56,.5);
  border:1px solid var(--line);
  transition:border-color .2s ease-out,background-color .2s ease-out,transform .2s ease-out;
}
.info-strip:hover{border-color:var(--line-strong);background:rgba(16,38,56,.72);transform:translateY(-2px)}
.strip-icon{
  width:34px;height:34px;flex:0 0 auto;border-radius:11px;display:grid;place-items:center;
  color:var(--cyan);background:rgba(20,200,210,.1);border:1px solid rgba(20,200,210,.28);
}
.strip-icon svg{width:17px;height:17px}
.info-strip strong{display:block;font-size:16px;margin-bottom:4px}
.info-strip p{margin:0;font-size:14.5px;color:var(--text-2);line-height:1.8}

/* ===== 步骤 ===== */
.step-layout{display:grid;grid-template-columns:minmax(0,.9fr) minmax(0,1.1fr);gap:52px;align-items:center}
.step-figure{position:relative;border-radius:20px;overflow:hidden;border:1px solid var(--line);box-shadow:var(--shadow)}
.step-figure img{width:100%;aspect-ratio:4/3;object-fit:cover}
.step-figure figcaption{
  position:absolute;left:0;right:0;bottom:0;padding:18px 20px;font-size:13px;color:var(--text-2);
  background:linear-gradient(180deg,rgba(7,16,24,0),rgba(7,16,24,.92));
}
.step-list{display:grid;gap:16px}
.step{
  position:relative;padding:22px 24px 22px 78px;
  border-radius:var(--r-lg);background:rgba(16,38,56,.45);border:1px solid var(--line);
  transition:border-color .2s ease-out,transform .2s ease-out;
}
.step:hover{border-color:var(--line-strong);transform:translateY(-2px)}
.step-num{
  position:absolute;left:24px;top:22px;width:36px;height:36px;border-radius:12px;
  display:grid;place-items:center;font-size:15px;font-weight:700;color:var(--cyan);
  background:rgba(20,200,210,.12);border:1px solid rgba(20,200,210,.34);
}
.step h3{font-size:17.5px;margin-bottom:6px}
.step p{margin:0;font-size:15px;color:var(--text-2);line-height:1.85}

/* ===== 横向列表卡 ===== */
.list-stack{display:grid;gap:18px}
.list-card{
  display:grid;grid-template-columns:200px minmax(0,1fr);gap:22px;align-items:center;
  padding:16px;border-radius:var(--r-lg);
  background:rgba(16,38,56,.45);border:1px solid var(--line);
  transition:transform .22s ease-out,border-color .22s ease-out,box-shadow .22s ease-out;
}
.list-card:hover{transform:translateY(-3px);border-color:var(--line-strong);box-shadow:var(--shadow)}
.list-card img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:var(--r-sm)}
.list-card h3{font-size:18px;margin:10px 0 8px}
.list-card p{margin:0;font-size:15px;color:var(--text-2);line-height:1.85}

/* ===== FAQ ===== */
.faq-layout{display:flex;align-items:flex-start}
.faq-list{margin:0;background:transparent;border:0;border-top:1px solid var(--line);list-style:none}
.faq-list .accordion-item{border-bottom:1px solid var(--line);position:relative}
.faq-list .accordion-item::before{
  content:"";position:absolute;left:0;top:0;bottom:0;width:3px;border-radius:3px;
  background:var(--cyan);opacity:0;transition:opacity .2s ease-out;
}
.faq-list .accordion-item.is-open::before{opacity:1}
.accordion-title{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;text-align:left;padding:22px 16px 22px 20px;
  font-size:16.5px;font-weight:600;line-height:1.6;color:var(--text);
  background:transparent;border:0;transition:color .2s ease-out;
}
.accordion-title:hover{color:var(--cyan)}
.faq-icon{position:relative;width:16px;height:16px;flex:0 0 auto}
.faq-icon::before,.faq-icon::after{content:"";position:absolute;background:var(--cyan);border-radius:2px}
.faq-icon::before{left:0;right:0;top:7px;height:2px}
.faq-icon::after{top:0;bottom:0;left:7px;width:2px;transition:transform .2s ease-out,opacity .2s ease-out}
.accordion-item.is-open .faq-icon::after{transform:scaleY(0);opacity:0}
.accordion-content{max-height:0;overflow:hidden;transition:max-height .3s ease-out}
.accordion-inner{padding:0 20px 26px;color:var(--text-2);font-size:15.5px;line-height:1.9}

/* ===== 侧栏表单 ===== */
.form-card{
  position:sticky;top:112px;
  padding:28px;border-radius:20px;
  background:linear-gradient(165deg,rgba(16,38,56,.88),rgba(11,27,40,.78));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
}
.form-card h3{font-size:20px;margin-bottom:8px}
.form-card .form-intro{font-size:14px;color:var(--text-2);line-height:1.8;margin-bottom:22px}
.field{margin-bottom:16px}
.field label{display:block;font-size:13px;color:var(--text-2);margin-bottom:8px;letter-spacing:.02em}
.field input,.field textarea{
  width:100%;padding:13px 15px;border-radius:var(--r-sm);
  background:rgba(7,16,24,.72);border:1px solid var(--line);
  color:var(--text);font-size:15px;line-height:1.6;
  transition:border-color .2s ease-out,box-shadow .2s ease-out;
}
.field input::placeholder,.field textarea::placeholder{color:rgba(111,143,166,.8)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--cyan);box-shadow:0 0 0 3px rgba(20,200,210,.18);
}
.field textarea{min-height:104px;resize:vertical}
.form-card .btn{width:100%}
.form-note{font-size:12.5px;color:var(--text-3);line-height:1.75;margin:14px 0 0}
.form-status{display:none;margin-top:14px;font-size:14px;line-height:1.7}
.form-status.is-ok{display:block;color:var(--green)}
.form-status.is-error{display:block;color:var(--red)}

/* ===== CTA ===== */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:24px;padding:54px 48px;
  background:linear-gradient(120deg,rgba(20,200,210,.16),rgba(16,38,56,.92) 46%,rgba(242,169,59,.14));
  border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
}
.cta-band h2{font-size:clamp(24px,2.8vw,34px);margin-bottom:14px}
.cta-band p{color:var(--text-2);max-width:620px;margin-bottom:26px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
.cta-ring{
  position:absolute;right:-90px;top:-90px;width:300px;height:300px;border-radius:50%;
  border:1px dashed rgba(129,224,255,.16);pointer-events:none;
}

/* ===== 页脚 ===== */
.site-footer{
  margin-top:0;padding:76px 0 32px;
  background:linear-gradient(180deg,rgba(11,27,40,.5),rgba(7,16,24,1));
  border-top:1px solid var(--line);
}
.footer-brand{display:flex;align-items:center;gap:10px;font-size:20px;font-weight:700;margin-bottom:16px}
.footer-desc{color:var(--text-2);font-size:14.5px;line-height:1.9;max-width:430px}
.footer-col{margin-bottom:28px}
.footer-col h4{font-size:15px;margin-bottom:18px;color:var(--text)}
.footer-col ul li{margin-bottom:11px}
.footer-col a{font-size:14.5px;color:var(--text-2)}
.footer-col a:hover{color:var(--cyan)}
.footer-contact li{font-size:14px;color:var(--text-2);line-height:1.9}
.footer-contact b{color:var(--text-3);font-weight:500}
.footer-bottom{
  margin-top:44px;padding-top:22px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:16px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.to-top{
  padding:9px 18px;border-radius:var(--r-pill);border:1px solid var(--line);
  color:var(--text-2);font-size:13px;transition:color .2s ease-out,border-color .2s ease-out,box-shadow .2s ease-out;
}
.to-top:hover{color:var(--cyan);border-color:var(--cyan);box-shadow:var(--glow)}

@media screen and (max-width:1023px){
  .section{padding:72px 0}
  .section-tight{padding:56px 0}
  .page-hero{padding:132px 0 68px}
  .hero-grid{display:block}
  .hero-panel{margin-top:34px}
  .step-layout{grid-template-columns:1fr;gap:34px}
  .form-card{position:static;margin-top:36px}
  .cta-band{padding:40px 28px}
}
@media screen and (max-width:767px){
  body{font-size:16px}
  .section{padding:56px 0}
  .page-hero{padding:118px 0 54px}
  .strip-list{grid-template-columns:1fr}
  .list-card{grid-template-columns:1fr}
  .list-card img{aspect-ratio:16/9}
  .cta-band{padding:34px 22px;border-radius:20px}
  .cta-actions .btn{width:100%}
  .hero-actions .btn{width:100%}
}
@media screen and (max-width:520px){
  .container{padding:0 16px}
  .card{padding:22px}
  .accordion-title{padding:18px 12px 18px 14px;font-size:15.5px}
  .accordion-inner{padding:0 14px 22px}
  .footer-bottom{flex-direction:column;align-items:flex-start}
}
@media (prefers-reduced-motion:reduce){
  *{transition-duration:.01ms!important;animation-duration:.01ms!important;scroll-behavior:auto!important}
}