/* roulang page: index */
:root{
  --bg-root:#05070E;
  --bg-deep:#0A0F1C;
  --bg-panel:#101827;
  --line:rgba(148,178,205,0.14);
  --line-soft:rgba(255,255,255,0.08);
  --primary:#23E0C8;
  --primary-strong:#10B39F;
  --primary-glow:rgba(35,224,200,0.35);
  --accent:#FF7A2F;
  --accent-soft:rgba(255,122,47,0.35);
  --text-1:#EAF2FA;
  --text-2:#A7B6C8;
  --text-3:#6C7C90;
  --radius-card:18px;
  --radius-sm:14px;
  --shadow-card:0 24px 60px -32px rgba(0,0,0,0.95);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-1);
  background-color:var(--bg-root);
  background-image:
    radial-gradient(900px 620px at 10% -4%, rgba(35,224,200,0.10), transparent 62%),
    radial-gradient(760px 520px at 94% 92%, rgba(255,122,47,0.06), transparent 66%),
    linear-gradient(rgba(148,178,205,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148,178,205,0.025) 1px, transparent 1px);
  background-size:auto,auto,44px 44px,44px 44px;
  background-attachment:fixed;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .2s var(--ease)}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:700;letter-spacing:-0.01em;color:var(--text-1)}
p{margin:0}
svg{display:block}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
  outline:2px solid var(--primary);outline-offset:2px;border-radius:8px;
}
::selection{background:rgba(35,224,200,0.28);color:#04121A}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#05070E}
::-webkit-scrollbar-thumb{background:rgba(35,224,200,0.22);border-radius:8px}
::-webkit-scrollbar-thumb:hover{background:rgba(35,224,200,0.38)}

.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:640px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:60;
  background:rgba(5,7,14,0.72);
  backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.nav-grid{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;height:72px;gap:16px}
.nav-links{display:flex;align-items:center;gap:26px}
.nav-left{justify-content:flex-start}
.nav-right{justify-content:flex-end;gap:18px}
.nav-link{
  position:relative;display:inline-flex;align-items:center;gap:8px;
  font-size:15px;color:var(--text-2);padding:6px 0;transition:color .2s var(--ease);
}
.nav-link:hover{color:var(--primary)}
.nav-link.active{color:var(--primary)}
.nav-link.active::after{
  content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;
  background:var(--primary);box-shadow:0 0 12px var(--primary-glow);
}
.nav-dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary-glow)}
.brand{display:flex;align-items:center;gap:10px;justify-self:center;transition:opacity .2s}
.brand:hover{opacity:.88}
.brand-mark{
  position:relative;width:28px;height:28px;border-radius:9px;
  background:linear-gradient(135deg,#23E0C8,#10B39F);
  box-shadow:0 0 22px -4px var(--primary-glow);
}
.brand-mark::after{content:"";position:absolute;inset:7px;border-radius:4px;border:2px solid rgba(4,18,26,0.85)}
.brand-text{font-size:18px;font-weight:700;letter-spacing:.01em;white-space:nowrap}
.brand-accent{color:var(--primary)}
.nav-toggle{
  display:none;width:44px;height:44px;border-radius:12px;
  border:1px solid var(--line);align-items:center;justify-content:center;color:var(--text-1);
}
.nav-toggle:hover{border-color:rgba(35,224,200,0.4);color:var(--primary)}
.nav-mobile-panel{
  display:none;border-top:1px solid var(--line);
  background:rgba(5,7,14,0.96);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
  padding:8px 0 20px;
}
.nav-mobile-panel.open{display:block}
.nav-mobile-panel a.m-link{
  display:flex;align-items:center;justify-content:space-between;
  height:48px;padding:0 20px;font-size:16px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.nav-mobile-panel a.m-link:hover,.nav-mobile-panel a.m-link.active{color:var(--primary);border-bottom-color:rgba(35,224,200,0.3)}
.nav-mobile-panel .m-cta{padding:18px 20px 0}
@media (max-width:1023px){
  .nav-grid{grid-template-columns:1fr auto;height:64px}
  .nav-left,.nav-right{display:none}
  .brand{justify-self:start}
  .nav-toggle{display:inline-flex}
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:999px;
  font-size:15px;font-weight:600;white-space:nowrap;
  transition:transform .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease),filter .24s var(--ease),border-color .24s var(--ease);
}
.btn-primary{
  background:linear-gradient(120deg,#23E0C8,#10B39F);color:#04121A;
  box-shadow:0 0 0 1px rgba(35,224,200,0.35),0 12px 34px -12px var(--primary-glow);
}
.btn-primary:hover{transform:translateY(-2px);filter:brightness(1.08);box-shadow:0 0 0 1px rgba(35,224,200,0.5),0 18px 44px -12px var(--primary-glow)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(35,224,200,0.35),0 8px 18px -12px var(--primary-glow)}
.btn-accent{
  background:linear-gradient(120deg,#FF7A2F,#FF9A4D);color:#1A0A02;
  box-shadow:0 0 0 1px rgba(255,122,47,0.35),0 12px 34px -12px var(--accent-soft);
}
.btn-accent:hover{transform:translateY(-2px);filter:brightness(1.06);box-shadow:0 0 0 1px rgba(255,122,47,0.5),0 18px 44px -12px var(--accent-soft)}
.btn-accent:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border:1px solid rgba(35,224,200,0.42);color:var(--primary)}
.btn-ghost:hover{background:rgba(35,224,200,0.10);transform:translateY(-2px)}
.btn-sm{height:40px;padding:0 20px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:8px;font-size:14.5px;font-weight:600;color:var(--text-2)}
.link-arrow svg{transition:transform .24s var(--ease)}
.link-arrow:hover{color:var(--primary)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ============ 徽章 ============ */
.badge{
  display:inline-flex;align-items:center;gap:7px;
  padding:5px 13px;border-radius:999px;font-size:12.5px;line-height:1.6;
  border:1px solid rgba(35,224,200,0.42);background:rgba(35,224,200,0.08);color:var(--primary);
}
.badge-accent{border-color:rgba(255,122,47,0.45);background:rgba(255,122,47,0.10);color:#FF9A4D}
.badge-plain{border-color:var(--line);background:rgba(148,178,205,0.06);color:var(--text-2)}

/* ============ 卡片 ============ */
.glass-card{
  background:linear-gradient(160deg,rgba(255,255,255,0.055),rgba(255,255,255,0.015));
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid var(--line-soft);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease),background .24s var(--ease);
}
.glass-card:hover{
  border-color:rgba(35,224,200,0.34);transform:translateY(-4px);
  box-shadow:var(--shadow-card),0 0 40px -14px var(--primary-glow);
}

/* ============ 区块节奏 ============ */
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
.section-deep{background:var(--bg-deep);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:760px;margin-bottom:34px}
.section-title{font-size:clamp(23px,3vw,33px);line-height:1.28}
.section-sub{margin-top:12px;font-size:14px;line-height:1.7;color:var(--text-2)}
.section-head-row{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px}

/* ============ Hero ============ */
.hero{
  position:relative;overflow:hidden;padding:64px 0 56px;
  background-image:
    linear-gradient(90deg,rgba(5,7,14,0.97) 0%,rgba(5,7,14,0.90) 42%,rgba(5,7,14,0.62) 100%),
    url(/assets/images/backpic/back-1.png);
  background-size:cover;background-position:center right;
}
.hero::after{
  content:"";position:absolute;inset:0;pointer-events:none;
  background:radial-gradient(680px 460px at 16% 26%,rgba(35,224,200,0.16),transparent 68%);
}
.hero-grid{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:40px}
@media (min-width:1024px){.hero-grid{grid-template-columns:7fr 5fr;gap:56px;align-items:center}}
.hero-title{
  margin-top:18px;
  font-size:clamp(30px,4.6vw,52px);line-height:1.15;letter-spacing:-0.5px;
}
.hero-title em{font-style:normal;color:var(--primary)}
.hero-sub{margin-top:16px;font-size:16.5px;line-height:1.8;color:var(--text-2);max-width:560px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-metrics{display:flex;flex-wrap:wrap;gap:0;margin-top:38px;border-top:1px solid var(--line);padding-top:22px}
.hero-metrics li{display:flex;flex-direction:column;gap:2px;padding-right:26px;margin-right:26px;border-right:1px solid var(--line)}
.hero-metrics li:last-child{border-right:0;margin-right:0;padding-right:0}
.metric-num{font-size:clamp(24px,3vw,32px);font-weight:700;line-height:1.2;color:var(--primary)}
.metric-num.is-accent{color:var(--accent)}
.metric-label{font-size:12.5px;color:var(--text-3)}
.hero-visual{position:relative}
.hero-frame{
  position:relative;border-radius:18px;overflow:hidden;
  border:1px solid rgba(35,224,200,0.28);
  box-shadow:0 40px 80px -40px rgba(0,0,0,0.95),0 0 60px -24px var(--primary-glow);
  transform:perspective(900px) rotateY(-6deg) rotateX(2deg);
  transition:transform .4s var(--ease);
}
.hero-frame:hover{transform:perspective(900px) rotateY(-2deg) rotateX(1deg)}
.hero-frame img{width:100%;aspect-ratio:4/3;object-fit:cover}
.hero-float{
  position:absolute;left:-14px;bottom:22px;
  padding:12px 16px;border-radius:14px;
  background:rgba(5,7,14,0.86);border:1px solid rgba(35,224,200,0.36);
  box-shadow:0 0 34px -12px var(--primary-glow);backdrop-filter:blur(10px);
}
.hero-float .hf-num{font-size:20px;font-weight:700;color:var(--primary);line-height:1.2}
.hero-float .hf-txt{font-size:12.5px;color:var(--text-2)}
@media (max-width:1023px){
  .hero{padding:44px 0 40px;background-position:center}
  .hero-frame{transform:none}
  .hero-frame img{max-height:220px;aspect-ratio:16/9}
  .hero-float{left:12px;bottom:12px}
}

/* ============ 信任条 ============ */
.trust-bar{border-top:1px solid var(--line);padding:22px 0 4px;margin-top:0}
.trust-list{display:flex;flex-wrap:wrap;gap:12px}
@media (max-width:767px){.trust-list{gap:10px}}

/* ============ 痛点区 ============ */
.pain-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){.pain-grid{grid-template-columns:4fr 8fr;gap:56px}}
.pain-sticky{position:sticky;top:104px;align-self:start}
.pain-item{
  display:grid;grid-template-columns:auto 1fr;gap:20px;align-items:start;
  padding:24px 0;border-top:1px solid var(--line);
}
.pain-item:last-child{border-bottom:1px solid var(--line)}
.pain-num{
  font-size:48px;font-weight:700;line-height:1;letter-spacing:-1px;
  color:transparent;-webkit-text-stroke:1px rgba(35,224,200,0.55);
  transition:color .24s var(--ease);
}
.pain-item:hover .pain-num{color:rgba(35,224,200,0.16)}
.pain-item h3{font-size:18px;line-height:1.5}
.pain-item p{margin-top:8px;font-size:14px;line-height:1.8;color:var(--text-2);max-width:620px}

/* ============ Bento 方案区 ============ */
.bento{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:1024px){
  .bento{grid-template-columns:repeat(12,1fr);gap:24px}
  .bento-a{grid-column:span 8}
  .bento-b{grid-column:span 4}
  .bento-c{grid-column:span 5}
  .bento-d{grid-column:span 7}
}
.bento-card{padding:26px;display:flex;flex-direction:column;gap:14px}
.bento-card .bc-img{border-radius:16px;overflow:hidden;border:1px solid var(--line-soft)}
.bento-card .bc-img img{width:100%;aspect-ratio:16/9;object-fit:cover}
.bento-card h3{font-size:20px;line-height:1.45}
.bento-card p{font-size:14px;line-height:1.8;color:var(--text-2)}
.bento-spacer{margin-top:auto}
@media (max-width:767px){.bento-card{padding:18px}}

/* ============ 成果区 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
@media (min-width:768px){.stat-grid{grid-template-columns:repeat(4,1fr);gap:22px}}
.stat-card{padding:22px;border-radius:var(--radius-card);border:1px solid var(--line-soft);background:linear-gradient(160deg,rgba(255,255,255,0.05),rgba(255,255,255,0.014));transition:border-color .24s var(--ease),transform .24s var(--ease)}
.stat-card:hover{border-color:rgba(35,224,200,0.34);transform:translateY(-3px)}
.stat-num{font-size:clamp(28px,3.4vw,44px);font-weight:700;line-height:1.15;color:var(--primary)}
.stat-num.is-accent{color:var(--accent)}
.stat-label{margin-top:6px;font-size:13.5px;color:var(--text-2)}
.case-row{display:grid;grid-template-columns:1fr;gap:28px;margin-top:46px;align-items:center}
@media (min-width:1024px){.case-row{grid-template-columns:1fr 1fr;gap:48px}}
.case-media{position:relative;border-radius:16px;overflow:hidden;border:1px solid var(--line-soft)}
.case-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.case-tag{
  position:absolute;left:16px;bottom:16px;
  padding:8px 14px;border-radius:999px;font-size:13px;font-weight:600;
  background:rgba(5,7,14,0.86);border:1px solid rgba(35,224,200,0.4);color:var(--primary);
}

/* ============ 证言 ============ */
.quote-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:1024px){.quote-grid{grid-template-columns:repeat(3,1fr);gap:24px}}
.quote-card{position:relative;padding:28px 26px 24px}
@media (min-width:1024px){.quote-card:nth-child(2){transform:translateY(-16px)}}
.quote-card:hover{transform:translateY(-4px)}
@media (min-width:1024px){.quote-card:nth-child(2):hover{transform:translateY(-20px)}}
.quote-mark{font-size:52px;line-height:0.7;font-weight:700;color:rgba(35,224,200,0.25)}
.quote-text{margin-top:14px;font-size:15px;line-height:1.9;color:var(--text-2)}
.quote-foot{display:flex;align-items:center;gap:12px;margin-top:20px;padding-top:18px;border-top:1px solid var(--line)}
.avatar{
  width:42px;height:42px;border-radius:50%;flex:0 0 auto;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:#04121A;
  background:linear-gradient(135deg,#23E0C8,#10B39F);
}
.quote-name{font-size:14.5px;font-weight:600}
.quote-role{font-size:12.5px;color:var(--text-3)}

/* ============ 资讯列表 ============ */
.news-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:1024px){.news-layout{grid-template-columns:9fr 3fr;gap:40px}}
.news-list{display:flex;flex-direction:column;gap:14px}
.news-row{
  border:1px solid var(--line-soft);border-radius:var(--radius-card);
  background:linear-gradient(160deg,rgba(255,255,255,0.05),rgba(255,255,255,0.014));
  transition:background .24s var(--ease),border-color .24s var(--ease),transform .24s var(--ease);
}
.news-row:hover{background:rgba(35,224,200,0.05);border-color:rgba(35,224,200,0.34);transform:translateY(-3px)}
.news-inner{display:grid;grid-template-columns:1fr auto;gap:16px;align-items:center;padding:20px 22px}
.news-head{display:flex;align-items:center;gap:12px;flex-wrap:wrap;margin-bottom:8px}
.news-title{font-size:18px;font-weight:600;line-height:1.5;transition:color .2s}
.news-row:hover .news-title{color:var(--primary)}
.news-summary{margin-top:8px;font-size:14px;line-height:1.75;color:var(--text-2);display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;flex-direction:column;align-items:flex-end;gap:10px}
.news-date{display:inline-flex;align-items:center;gap:6px;font-size:12.5px;color:var(--text-3)}
.news-arrow{color:var(--text-3);transition:transform .24s var(--ease),color .24s var(--ease)}
.news-row:hover .news-arrow{color:var(--primary);transform:translateX(4px)}
@media (max-width:767px){
  .news-inner{grid-template-columns:1fr;padding:18px}
  .news-meta{flex-direction:row;align-items:center;justify-content:space-between;width:100%}
}
.news-aside{align-self:start;position:sticky;top:104px;display:none}
@media (min-width:1024px){.news-aside{display:block}}
.news-aside img{width:100%;border-radius:16px;border:1px solid var(--line-soft);aspect-ratio:3/4;object-fit:cover}
.news-aside-note{margin-top:14px;font-size:13.5px;line-height:1.8;color:var(--text-2)}
.empty-state{
  border:1px dashed rgba(148,178,205,0.2);border-radius:16px;
  padding:48px 24px;text-align:center;display:flex;flex-direction:column;align-items:center;gap:14px;
}
.empty-state svg{color:var(--primary)}
.empty-state p{font-size:15px;color:var(--text-2)}

/* ============ FAQ ============ */
.faq-list{max-width:880px}
.faq-item{background:var(--bg-panel);border:1px solid var(--line);border-radius:14px;margin-bottom:12px;overflow:hidden;transition:border-color .24s var(--ease)}
.faq-item.open{border-color:rgba(35,224,200,0.32)}
.faq-q{display:flex;align-items:center;justify-content:space-between;gap:16px;width:100%;padding:18px 22px;font-size:16.5px;font-weight:600;text-align:left;color:var(--text-1)}
.faq-q:hover{color:var(--primary)}
.faq-icon{flex:0 0 auto;color:var(--primary);transition:transform .26s var(--ease)}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{display:grid;grid-template-rows:0fr;transition:grid-template-rows .28s var(--ease)}
.faq-item.open .faq-a{grid-template-rows:1fr}
.faq-a-inner{overflow:hidden;min-height:0}
.faq-a p{padding:0 22px 20px;font-size:15px;line-height:1.85;color:var(--text-2)}

/* ============ CTA ============ */
.cta-band{
  position:relative;overflow:hidden;border-radius:22px;
  border:1px solid rgba(35,224,200,0.22);
  background:linear-gradient(120deg,rgba(16,24,39,0.96),rgba(10,15,28,0.92));
  padding:48px 32px;
}
.cta-band::after{
  content:"";position:absolute;right:-120px;top:-120px;width:420px;height:420px;border-radius:50%;
  background:radial-gradient(circle,rgba(35,224,200,0.20),transparent 68%);pointer-events:none;
}
.cta-inner{position:relative;z-index:2;display:grid;grid-template-columns:1fr;gap:28px;align-items:center}
@media (min-width:1024px){.cta-inner{grid-template-columns:1fr auto;gap:40px}}
.cta-band h2{font-size:clamp(23px,3vw,32px);line-height:1.3}
.cta-band .cta-sub{margin-top:12px;font-size:15px;line-height:1.8;color:var(--text-2);max-width:620px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}
@media (max-width:767px){.cta-band{padding:34px 20px}}

/* ============ 页脚 ============ */
.site-footer{background:var(--bg-deep);border-top:1px solid var(--line);padding:56px 0 0;margin-top:8px}
.footer-grid{display:grid;grid-template-columns:1fr;gap:34px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr}}
.footer-brand p{margin-top:14px;font-size:15px;line-height:1.85;color:var(--text-2);max-width:340px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:40px;height:40px;border-radius:12px;display:flex;align-items:center;justify-content:center;
  border:1px solid var(--line);color:var(--text-2);transition:all .24s var(--ease);
}
.footer-social a:hover{border-color:rgba(35,224,200,0.45);color:var(--primary);background:rgba(35,224,200,0.08)}
.footer-col h4{font-size:14px;letter-spacing:.04em;color:var(--text-1);margin-bottom:16px}
.footer-col li{margin-bottom:10px}
.footer-col a{font-size:14.5px;color:var(--text-2)}
.footer-col a:hover{color:var(--primary)}
.footer-note{font-size:13.5px;line-height:1.85;color:var(--text-3)}
.footer-bottom{
  margin-top:44px;border-top:1px solid var(--line);
  padding:20px 0 26px;display:flex;flex-wrap:wrap;gap:14px;
  align-items:center;justify-content:space-between;
}
.footer-bottom span,.footer-bottom a{font-size:13px;color:var(--text-3)}
.footer-bottom a:hover{color:var(--primary)}
.footer-links{display:flex;flex-wrap:wrap;gap:18px}

/* ============ 动效降级 ============ */
@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition:none !important;scroll-behavior:auto !important}
  .glass-card:hover,.news-row:hover,.stat-card:hover,.quote-card:hover,.btn:hover{transform:none !important}
  .hero-frame{transform:none !important}
}

/* roulang page: article */
:root{
  --bg-root:#05070E;
  --bg-deep:#0A0F1C;
  --bg-panel:#101827;
  --line:rgba(148,178,205,.14);
  --line-strong:rgba(35,224,200,.34);
  --primary:#23E0C8;
  --primary-strong:#10B39F;
  --primary-glow:rgba(35,224,200,.35);
  --accent:#FF7A2F;
  --accent-glow:rgba(255,122,47,.35);
  --text-1:#EAF2FA;
  --text-2:#A7B6C8;
  --text-3:#6C7C90;
  --radius-card:18px;
  --radius-soft:14px;
  --radius-pill:999px;
  --shadow-card:0 24px 60px -32px rgba(0,0,0,.95);
  --ease:cubic-bezier(.2,.7,.3,1);
}
*,*::before,*::after{box-sizing:border-box}
html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
body{
  margin:0;
  min-height:100vh;
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
  background-color:var(--bg-root);
  background-image:
    radial-gradient(circle at 12% 6%, rgba(35,224,200,.10), transparent 42%),
    radial-gradient(circle at 88% 92%, rgba(255,122,47,.05), transparent 46%),
    linear-gradient(rgba(148,178,205,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148,178,205,.025) 1px, transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
  background-attachment:fixed;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none;transition:color .22s var(--ease),border-color .22s var(--ease),background-color .22s var(--ease)}
button,input{font:inherit}
ul,ol{margin:0}
p{margin:0}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700}
:focus-visible{outline:2px solid var(--primary);outline-offset:2px;border-radius:4px}
::selection{background:rgba(35,224,200,.28);color:#fff}
::-webkit-scrollbar{width:10px;height:10px}
::-webkit-scrollbar-track{background:#070B14}
::-webkit-scrollbar-thumb{background:rgba(35,224,200,.24);border-radius:99px;border:2px solid #070B14}
::-webkit-scrollbar-thumb:hover{background:rgba(35,224,200,.4)}
.visually-hidden{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:640px){.container{padding:0 24px}}
@media (min-width:1024px){.container{padding:0 32px}}

/* ---------- 阅读进度 ---------- */
.read-progress{position:fixed;top:0;left:0;height:3px;width:0;z-index:70;background:linear-gradient(90deg,var(--primary),var(--primary-strong));box-shadow:0 0 14px var(--primary-glow);transition:width .12s linear}

/* ---------- 导航 ---------- */
.site-header{position:sticky;top:0;z-index:60;background:rgba(5,7,14,.78);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.nav-grid{display:grid;grid-template-columns:1fr auto 1fr;align-items:center;gap:18px;height:72px}
.nav-links{list-style:none;padding:0;display:flex;align-items:center;gap:26px}
.nav-left{justify-content:flex-start}
.nav-right{display:flex;align-items:center;justify-content:flex-end;gap:16px}
.nav-link{position:relative;display:inline-flex;align-items:center;gap:7px;padding:6px 0;font-size:15px;color:var(--text-2);transition:color .22s var(--ease)}
.nav-link:hover{color:var(--primary)}
.nav-link.active{color:var(--primary)}
.nav-dot{display:none;width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary-glow)}
.nav-link.active .nav-dot{display:inline-block}
.nav-link.active::after{content:"";position:absolute;left:0;right:0;bottom:-4px;height:2px;border-radius:2px;background:linear-gradient(90deg,var(--primary),rgba(35,224,200,0));box-shadow:0 0 12px var(--primary-glow)}
.brand{display:inline-flex;align-items:center;gap:10px;font-size:19px;font-weight:700;color:var(--text-1);letter-spacing:.2px}
.brand:hover{color:var(--text-1)}
.brand-mark{width:26px;height:26px;flex:none;background:linear-gradient(140deg,var(--primary),var(--primary-strong));clip-path:polygon(50% 0%,93% 25%,93% 75%,50% 100%,7% 75%,7% 25%);box-shadow:0 0 22px var(--primary-glow)}
.brand-text{white-space:nowrap}
.brand-accent{color:var(--primary)}
.nav-toggle{display:none;align-items:center;justify-content:center;width:42px;height:42px;border-radius:12px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-1);cursor:pointer;transition:border-color .22s var(--ease),color .22s var(--ease)}
.nav-toggle:hover{border-color:var(--line-strong);color:var(--primary)}
.nav-mobile-panel{display:none;background:rgba(5,7,14,.97);border-bottom:1px solid var(--line);padding:8px 20px 22px}
.nav-mobile-panel.open{display:block}
.m-link{display:flex;align-items:center;justify-content:space-between;height:48px;padding:0 2px;font-size:15px;color:var(--text-2);border-bottom:1px solid var(--line)}
.m-link:hover,.m-link.active{color:var(--primary)}
.m-cta{padding-top:16px}
@media (max-width:1023px){
  .nav-grid{display:flex;justify-content:space-between;height:64px}
  .nav-left{display:none}
  .brand{order:-1}
  .nav-right .nav-links,.nav-right .btn-ghost{display:none}
  .nav-toggle{display:inline-flex}
}

/* ---------- 按钮 ---------- */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 26px;border-radius:var(--radius-pill);border:1px solid transparent;font-size:15px;font-weight:600;cursor:pointer;white-space:nowrap;transition:transform .22s var(--ease),box-shadow .22s var(--ease),background-color .22s var(--ease),border-color .22s var(--ease)}
.btn-primary{background:linear-gradient(120deg,#23E0C8,#10B39F);color:#04121A;box-shadow:0 0 0 1px rgba(35,224,200,.35),0 12px 34px -12px var(--primary-glow)}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(35,224,200,.5),0 18px 40px -12px var(--primary-glow)}
.btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(35,224,200,.4),0 8px 20px -12px var(--primary-glow)}
.btn-accent{background:linear-gradient(120deg,#FF7A2F,#FF9A4D);color:#1A0A02;box-shadow:0 0 0 1px rgba(255,122,47,.4),0 12px 34px -14px var(--accent-glow)}
.btn-accent:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(255,122,47,.55),0 18px 42px -14px var(--accent-glow)}
.btn-accent:active{transform:translateY(1px)}
.btn-ghost{background:transparent;border-color:rgba(35,224,200,.42);color:var(--primary)}
.btn-ghost:hover{background:rgba(35,224,200,.10);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(1px)}
.btn-sm{height:42px;padding:0 20px;font-size:14px}
.link-arrow{display:inline-flex;align-items:center;gap:7px;font-size:14px;font-weight:600;color:var(--primary)}
.link-arrow svg{transition:transform .22s var(--ease)}
.link-arrow:hover svg{transform:translateX(4px)}

/* ---------- 徽章 / 面包屑 ---------- */
.badge{display:inline-flex;align-items:center;gap:6px;padding:5px 12px;border-radius:var(--radius-pill);font-size:12.5px;font-weight:500;color:var(--primary);border:1px solid rgba(35,224,200,.4);background:rgba(35,224,200,.08);transition:background-color .22s var(--ease),border-color .22s var(--ease)}
a.badge:hover{background:rgba(35,224,200,.16);border-color:var(--line-strong)}
.badge-accent{color:var(--accent);border-color:rgba(255,122,47,.42);background:rgba(255,122,47,.10)}
.breadcrumb{display:flex;align-items:center;flex-wrap:wrap;gap:9px;font-size:13px;color:var(--text-3)}
.breadcrumb a{color:var(--text-3)}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .crumb-now{color:var(--text-1)}
.breadcrumb .crumb-sep{color:rgba(148,178,205,.4)}

/* ---------- 文章标题带 ---------- */
.article-hero{position:relative;overflow:hidden;background:var(--bg-deep);border-bottom:1px solid var(--line);padding:44px 0 64px}
.article-hero::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 18% 0%, rgba(35,224,200,.14), transparent 52%);pointer-events:none}
.article-hero::after{content:"";position:absolute;right:-120px;bottom:-140px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle, rgba(255,122,47,.10), transparent 68%);pointer-events:none}
.article-hero .container{position:relative;z-index:2}
.article-title{margin:18px 0 16px;font-size:clamp(26px,3.6vw,40px);line-height:1.3;letter-spacing:-.4px;max-width:920px}
.article-meta{display:flex;align-items:center;flex-wrap:wrap;gap:12px;font-size:12.5px;color:var(--text-3)}
.article-meta .meta-item{display:inline-flex;align-items:center;gap:6px}
.article-meta .meta-sep{width:1px;height:12px;background:var(--line)}
.article-meta svg{color:var(--primary);opacity:.85}

/* ---------- 封面 ---------- */
.cover-wrap{position:relative;z-index:3;margin-top:-40px}
.cover-frame{position:relative;overflow:hidden;border-radius:var(--radius-card);border:1px solid var(--line);box-shadow:var(--shadow-card);background:linear-gradient(120deg,#0B1220,#101827)}
.cover-frame img{width:100%;aspect-ratio:21/9;object-fit:cover}
.cover-frame::after{content:"";position:absolute;inset:0;background:linear-gradient(180deg, rgba(5,7,14,0) 45%, rgba(5,7,14,.55));pointer-events:none}
@media (max-width:767px){.cover-wrap{margin-top:-24px}.cover-frame img{aspect-ratio:16/10}}

/* ---------- 正文排版 ---------- */
.article-body{max-width:820px;margin:0 auto;padding:52px 0 0}
.rich-text{font-size:17px;line-height:1.95;color:var(--text-2)}
.rich-text > * + *{margin-top:20px}
.rich-text > *:first-child{margin-top:0}
.rich-text p{font-size:17px;line-height:1.95}
.rich-text strong{color:var(--text-1);font-weight:600}
.rich-text h2{position:relative;margin-top:44px;padding-left:14px;font-size:clamp(21px,2.4vw,26px);line-height:1.45;color:var(--text-1)}
.rich-text h2::before{content:"";position:absolute;left:0;top:.26em;bottom:.26em;width:3px;border-radius:3px;background:linear-gradient(180deg,var(--primary),var(--primary-strong));box-shadow:0 0 12px var(--primary-glow)}
.rich-text h3{margin-top:32px;font-size:19px;line-height:1.55;font-weight:600;color:var(--text-1)}
.rich-text h4{margin-top:24px;font-size:17px;color:var(--text-1)}
.rich-text ul,.rich-text ol{list-style:none;padding-left:0;display:flex;flex-direction:column;gap:10px}
.rich-text ul li{position:relative;padding-left:22px}
.rich-text ul li::before{content:"";position:absolute;left:2px;top:.72em;width:7px;height:7px;border-radius:50%;background:var(--primary);box-shadow:0 0 10px var(--primary-glow)}
.rich-text ol{counter-reset:rt}
.rich-text ol li{position:relative;padding-left:32px;counter-increment:rt}
.rich-text ol li::before{content:counter(rt);position:absolute;left:0;top:.42em;width:21px;height:21px;border-radius:7px;border:1px solid var(--line-strong);color:var(--primary);font-size:12px;line-height:1;display:flex;align-items:center;justify-content:center}
.rich-text blockquote{margin:26px 0;padding:18px 22px;border-left:3px solid var(--primary);border-radius:12px;background:rgba(35,224,200,.06);color:var(--text-2);font-size:16px}
.rich-text blockquote p{font-size:16px}
.rich-text img{border-radius:16px;border:1px solid var(--line);width:100%;margin:26px auto}
.rich-text figure{margin:26px 0}
.rich-text figcaption,.rich-text .caption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.rich-text hr{border:0;border-top:1px solid var(--line);margin:36px 0}
.rich-text a{color:var(--primary);text-decoration:underline;text-underline-offset:3px}
.rich-text code{background:var(--bg-panel);color:var(--primary);padding:2px 7px;border-radius:6px;font-size:14px}
.rich-text pre{background:var(--bg-panel);border:1px solid var(--line);border-radius:14px;padding:18px 20px;overflow-x:auto}
.rich-text pre code{background:none;padding:0;color:var(--text-1)}
.rich-text table{width:100%;border-collapse:collapse;border:1px solid var(--line);border-radius:12px;overflow:hidden;font-size:15px;background:rgba(255,255,255,.02)}
.rich-text th{background:var(--bg-panel);color:var(--text-1);text-align:left;font-weight:600}
.rich-text th,.rich-text td{padding:12px 16px;border-bottom:1px solid var(--line)}
.rich-text tr:last-child td{border-bottom:0}
@media (max-width:767px){
  .rich-text table{display:block;overflow-x:auto;white-space:nowrap}
  .article-body{padding-top:40px}
}

/* ---------- 文章尾部动作 ---------- */
.article-actions{max-width:820px;margin:44px auto 0;padding-top:28px;border-top:1px solid var(--line);display:flex;align-items:center;justify-content:space-between;gap:18px;flex-wrap:wrap}
.tag-list{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.tag-label{font-size:13px;color:var(--text-3)}

/* ---------- 空态 ---------- */
.empty-state{margin:8px auto 0;padding:48px 28px;border:1px dashed rgba(148,178,205,.24);border-radius:16px;text-align:center;background:rgba(255,255,255,.015)}
.empty-state svg{color:var(--primary);margin:0 auto 16px}
.empty-state h2{font-size:20px;margin-bottom:10px}
.empty-state p{font-size:15px;color:var(--text-2);margin-bottom:22px}

/* ---------- 通用板块 ---------- */
.section{padding:64px 0}
@media (min-width:768px){.section{padding:76px 0}}
@media (min-width:1024px){.section{padding:92px 0}}
.section-deep{background:var(--bg-deep);border-top:1px solid var(--line);border-bottom:1px solid var(--line)}
.section-head{max-width:720px;margin-bottom:34px}
.section-head h2{font-size:clamp(23px,3vw,33px);line-height:1.28;letter-spacing:-.3px}
.section-head p{margin-top:12px;font-size:14px;color:var(--text-2)}

/* ---------- 卡片 ---------- */
.glass-card{position:relative;border-radius:var(--radius-card);border:1px solid rgba(255,255,255,.08);background:linear-gradient(160deg, rgba(255,255,255,.055), rgba(255,255,255,.015));backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);box-shadow:var(--shadow-card);transition:transform .24s var(--ease),border-color .24s var(--ease),box-shadow .24s var(--ease)}
.glass-card:hover{transform:translateY(-4px);border-color:var(--line-strong);box-shadow:var(--shadow-card),0 0 40px -14px var(--primary-glow)}
.card-pad{padding:22px}
@media (min-width:768px){.card-pad{padding:26px}}
.card-thumb{overflow:hidden;border-radius:14px;border:1px solid var(--line);background:#0B1220}
.card-thumb img{width:100%;aspect-ratio:16/10;object-fit:cover;transition:transform .4s var(--ease)}
.glass-card:hover .card-thumb img{transform:scale(1.04)}
.card-title{font-size:19px;line-height:1.5;font-weight:600;color:var(--text-1)}
.card-text{margin-top:10px;font-size:14px;line-height:1.8;color:var(--text-2)}
.card-meta{margin-top:14px;display:flex;align-items:center;gap:8px;font-size:12.5px;color:var(--text-3)}

/* ---------- 延伸阅读 / 上下篇 ---------- */
.pager-grid{display:grid;grid-template-columns:1fr 1fr;gap:18px}
@media (max-width:767px){.pager-grid{grid-template-columns:1fr}}
.pager-card{display:block;padding:22px 24px;border-radius:var(--radius-card);border:1px solid var(--line);background:linear-gradient(160deg, rgba(255,255,255,.05), rgba(255,255,255,.012));transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease)}
.pager-card:hover{border-color:var(--line-strong);transform:translateY(-4px);box-shadow:0 0 38px -16px var(--primary-glow)}
.pager-label{font-size:12.5px;color:var(--primary);letter-spacing:.6px}
.pager-title{margin-top:10px;font-size:18px;font-weight:600;color:var(--text-1);line-height:1.5}
.pager-text{margin-top:8px;font-size:14px;color:var(--text-2)}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;border-radius:20px;border:1px solid var(--line);background:var(--bg-deep);padding:40px 28px;display:flex;align-items:center;justify-content:space-between;gap:26px;flex-wrap:wrap}
.cta-band::before{content:"";position:absolute;inset:0;background:radial-gradient(circle at 12% 20%, rgba(35,224,200,.14), transparent 55%);pointer-events:none}
.cta-band > *{position:relative;z-index:2}
.cta-band h2{font-size:clamp(21px,2.6vw,28px);line-height:1.35;max-width:560px}
.cta-band p{margin-top:10px;font-size:15px;color:var(--text-2);max-width:560px}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap}
@media (min-width:768px){.cta-band{padding:48px 44px}}
@media (max-width:519px){.cta-actions .btn{width:100%}}

/* ---------- 页脚 ---------- */
.site-footer{margin-top:0;background:var(--bg-deep);border-top:1px solid var(--line);padding-top:64px}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.3fr;gap:36px;padding-bottom:52px}
.footer-brand .brand{justify-self:start}
.footer-brand p{margin:16px 0;font-size:14px;line-height:1.85;color:var(--text-2);max-width:330px}
.footer-social{display:flex;gap:10px}
.footer-social a{display:inline-flex;align-items:center;justify-content:center;width:38px;height:38px;border-radius:11px;border:1px solid var(--line);background:rgba(255,255,255,.03);color:var(--text-2);transition:color .22s var(--ease),border-color .22s var(--ease),transform .22s var(--ease)}
.footer-social a:hover{color:var(--primary);border-color:var(--line-strong);transform:translateY(-2px)}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{list-style:none;padding:0;display:flex;flex-direction:column;gap:11px}
.footer-col ul a{font-size:14px;color:var(--text-2)}
.footer-col ul a:hover{color:var(--primary)}
.footer-note{font-size:14px;line-height:1.8;color:var(--text-2)}
.footer-form{margin-top:16px;display:flex;gap:10px;flex-wrap:wrap}
.footer-form input{flex:1 1 150px;min-width:0;height:42px;padding:0 14px;border-radius:12px;border:1px solid var(--line);background:var(--bg-panel);color:var(--text-1);font-size:14px;transition:border-color .22s var(--ease),box-shadow .22s var(--ease)}
.footer-form input::placeholder{color:var(--text-3)}
.footer-form input:focus{outline:none;border-color:var(--primary);box-shadow:0 0 0 3px rgba(35,224,200,.18)}
.footer-tip{margin-top:10px;font-size:13px;color:var(--text-3)}
.footer-tip.is-warn{color:var(--accent)}
.footer-bottom{border-top:1px solid var(--line);padding:20px 0 28px;display:flex;align-items:center;justify-content:space-between;gap:14px;flex-wrap:wrap;font-size:13px;color:var(--text-3)}
.footer-links{display:flex;align-items:center;gap:10px;flex-wrap:wrap}
.footer-links a{color:var(--text-3)}
.footer-links a:hover{color:var(--primary)}
.footer-links span{color:rgba(148,178,205,.35)}
@media (max-width:1023px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (max-width:639px){.footer-grid{grid-template-columns:1fr;gap:30px}.site-footer{padding-top:52px}}

@media (prefers-reduced-motion: reduce){
  *{animation:none !important;transition-duration:.01ms !important}
  html{scroll-behavior:auto}
  .glass-card:hover,.pager-card:hover,.btn:hover{transform:none}
}

/* roulang page: category1 */
:root{
    --bg-root:#05070E;
    --bg-deep:#0A0F1C;
    --bg-panel:#101827;
    --line:rgba(148,178,205,0.14);
    --primary:#23E0C8;
    --primary-strong:#10B39F;
    --primary-glow:rgba(35,224,200,0.35);
    --accent:#FF7A2F;
    --text-1:#EAF2FA;
    --text-2:#A7B6C8;
    --text-3:#6C7C90;
    --radius-card:18px;
    --radius-soft:14px;
    --shadow-card:0 24px 60px -32px rgba(0,0,0,0.95);
    --ease:cubic-bezier(.2,.7,.3,1);
  }

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

  html{scroll-behavior:smooth}

  body{
    margin:0;
    color:var(--text-1);
    background-color:var(--bg-root);
    background-image:
      radial-gradient(900px 520px at 8% -6%, rgba(35,224,200,0.14), transparent 62%),
      radial-gradient(760px 480px at 102% 106%, rgba(255,122,47,0.055), transparent 60%),
      linear-gradient(rgba(148,178,205,0.025) 1px, transparent 1px),
      linear-gradient(90deg, rgba(148,178,205,0.025) 1px, transparent 1px);
    background-size:auto, auto, 64px 64px, 64px 64px;
    background-repeat:no-repeat, no-repeat, repeat, repeat;
    font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
    font-size:16px;
    line-height:1.85;
    -webkit-font-smoothing:antialiased;
  }

  a{color:inherit}
  img{max-width:100%;display:block}
  button{font-family:inherit}
  ul,ol{margin:0;padding:0;list-style:none}

  h1,h2,h3,h4{margin:0;font-weight:700;color:var(--text-1)}
  h1{font-size:clamp(30px,4.4vw,50px);line-height:1.16;letter-spacing:-0.5px}
  h2{font-size:clamp(23px,3vw,33px);line-height:1.28;letter-spacing:-0.2px}
  h3{font-size:20px;line-height:1.45;font-weight:600}

  p{margin:0}
  p + p{margin-top:14px}

  :focus-visible{outline:2px solid var(--primary);outline-offset:2px}

  .sr-only{
    position:absolute;width:1px;height:1px;padding:0;margin:-1px;
    overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0;
  }

  .container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
  @media(min-width:640px){.container{padding:0 24px}}
  @media(min-width:1024px){.container{padding:0 32px}}

  /* ============ 顶部导航 ============ */
  .site-header{
    position:sticky;top:0;z-index:60;
    background:rgba(5,7,14,0.72);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid var(--line);
  }
  .nav-grid{
    display:grid;
    grid-template-columns:1fr auto 1fr;
    align-items:center;
    height:72px;
    gap:16px;
  }
  .nav-links{display:flex;align-items:center;gap:26px}
  .nav-left{justify-content:flex-start}
  .nav-right{display:flex;align-items:center;gap:16px;justify-content:flex-end}
  .nav-right .nav-links{justify-content:flex-end}

  .nav-link{
    position:relative;
    display:inline-flex;align-items:center;gap:7px;
    padding:6px 2px;
    font-size:15px;
    color:var(--text-2);
    text-decoration:none;
    transition:color .22s var(--ease);
  }
  .nav-link:hover{color:var(--primary)}
  .nav-link.active{color:var(--primary);font-weight:600}
  .nav-dot{
    width:6px;height:6px;border-radius:50%;
    background:var(--primary);
    box-shadow:0 0 10px var(--primary-glow);
    display:none;
  }
  .nav-link.active .nav-dot{display:inline-block}
  .nav-link.active::after{
    content:"";position:absolute;left:0;right:0;bottom:-6px;height:2px;border-radius:2px;
    background:linear-gradient(90deg,var(--primary),rgba(35,224,200,0));
    box-shadow:0 0 12px var(--primary-glow);
  }

  .brand{
    display:inline-flex;align-items:center;gap:10px;
    justify-self:center;
    font-size:19px;font-weight:700;letter-spacing:.4px;
    color:var(--text-1);text-decoration:none;
  }
  .brand-mark{
    position:relative;flex:none;
    width:22px;height:22px;border-radius:7px;
    background:linear-gradient(140deg,var(--primary),var(--primary-strong));
    box-shadow:0 0 18px var(--primary-glow);
  }
  .brand-mark::after{
    content:"";position:absolute;inset:6px;border-radius:3px;
    border:1.5px solid rgba(4,18,26,.75);
  }
  .brand-accent{color:var(--primary)}

  .nav-toggle{
    display:none;
    align-items:center;justify-content:center;
    width:42px;height:42px;border-radius:12px;
    border:1px solid var(--line);
    background:rgba(255,255,255,0.03);
    color:var(--text-1);cursor:pointer;
    transition:border-color .2s var(--ease),background-color .2s var(--ease),color .2s var(--ease);
  }
  .nav-toggle:hover{border-color:rgba(35,224,200,.42);color:var(--primary)}

  .nav-mobile-panel{
    display:none;
    flex-direction:column;
    padding:8px 20px 22px;
    background:rgba(5,7,14,0.96);
    border-bottom:1px solid var(--line);
  }
  .nav-mobile-panel.open{display:flex}
  .m-link{
    display:flex;align-items:center;justify-content:space-between;
    height:48px;font-size:15px;color:var(--text-2);text-decoration:none;
    border-bottom:1px solid var(--line);
    transition:color .2s var(--ease);
  }
  .m-link:hover,.m-link.active{color:var(--primary)}
  .m-cta{padding-top:16px}

  /* ============ 按钮 ============ */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    height:48px;padding:0 26px;border-radius:999px;
    font-size:15px;font-weight:600;text-decoration:none;
    border:1px solid transparent;cursor:pointer;
    transition:transform .22s var(--ease),box-shadow .22s var(--ease),
               background-color .22s var(--ease),border-color .22s var(--ease),color .22s var(--ease);
  }
  .btn-sm{height:40px;padding:0 18px;font-size:14px}
  .btn-primary{
    background:linear-gradient(120deg,#23E0C8,#10B39F);
    color:#04121A;
    box-shadow:0 0 0 1px rgba(35,224,200,.35),0 12px 34px -12px var(--primary-glow);
  }
  .btn-primary:hover{transform:translateY(-2px);box-shadow:0 0 0 1px rgba(35,224,200,.5),0 18px 44px -14px var(--primary-glow)}
  .btn-primary:active{transform:translateY(1px);box-shadow:0 0 0 1px rgba(35,224,200,.4),0 8px 20px -14px var(--primary-glow)}
  .btn-ghost{
    background:transparent;
    border-color:rgba(35,224,200,.42);
    color:var(--primary);
  }
  .btn-ghost:hover{background:rgba(35,224,200,.10);transform:translateY(-2px)}
  .btn-accent{
    background:linear-gradient(120deg,#FF7A2F,#FF9A4D);
    color:#1A0A02;
    box-shadow:0 0 0 1px rgba(255,122,47,.32),0 12px 34px -12px rgba(255,122,47,0.45);
  }
  .btn-accent:hover{transform:translateY(-2px)}

  .link-arrow{
    display:inline-flex;align-items:center;gap:6px;
    font-size:14.5px;font-weight:600;color:var(--text-2);text-decoration:none;
    transition:color .2s var(--ease);
  }
  .link-arrow svg{transition:transform .22s var(--ease)}
  .link-arrow:hover{color:var(--primary)}
  .link-arrow:hover svg{transform:translateX(4px)}

  /* ============ 徽章 ============ */
  .badge{
    display:inline-flex;align-items:center;height:26px;padding:0 12px;
    border-radius:999px;font-size:12.5px;letter-spacing:.4px;
    color:var(--primary);
    border:1px solid rgba(35,224,200,.34);
    background:rgba(35,224,200,.08);
  }
  .badge-soft{
    display:inline-flex;align-items:center;height:24px;padding:0 11px;
    border-radius:999px;font-size:12px;letter-spacing:.4px;
    color:var(--text-2);
    border:1px solid var(--line);
    background:rgba(255,255,255,.03);
  }
  .badge-index{
    display:inline-flex;align-items:center;justify-content:center;
    width:34px;height:34px;border-radius:11px;
    font-size:13px;font-weight:700;color:var(--primary);
    border:1px solid rgba(35,224,200,.32);
    background:rgba(35,224,200,.07);
  }

  /* ============ 分类页 Hero ============ */
  .cat-hero{position:relative;overflow:hidden;border-bottom:1px solid var(--line)}
  .cat-hero::before{
    content:"";position:absolute;inset:0;
    background-image:url("/assets/images/backpic/back-1.png");
    background-size:cover;background-position:center;
    opacity:.22;
  }
  .cat-hero::after{
    content:"";position:absolute;inset:0;
    background-image:
      radial-gradient(620px 320px at 82% 16%, rgba(35,224,200,0.20), transparent 70%),
      linear-gradient(90deg, rgba(5,7,14,0.96) 0%, rgba(10,15,28,0.90) 46%, rgba(10,15,28,0.66) 100%);
  }
  .cat-hero-inner{position:relative;z-index:2;padding:50px 0 58px}
  @media(min-width:1024px){.cat-hero-inner{padding:60px 0 66px}}

  .breadcrumb{
    display:flex;flex-wrap:wrap;align-items:center;gap:8px;
    font-size:13px;color:var(--text-3);margin-bottom:18px;
  }
  .breadcrumb a{color:var(--text-3);text-decoration:none;transition:color .2s var(--ease)}
  .breadcrumb a:hover{color:var(--primary)}
  .breadcrumb .sep{opacity:.55}
  .breadcrumb .current{color:var(--text-1)}

  .cat-hero-grid{display:grid;grid-template-columns:1fr;gap:34px;align-items:center}
  @media(min-width:1024px){.cat-hero-grid{grid-template-columns:1.4fr .6fr;gap:48px}}

  .cat-hero h1{margin:16px 0 16px;max-width:760px}
  .hero-sub{font-size:17px;color:var(--text-2);max-width:600px}

  .hero-stats{display:grid;gap:14px}
  .stat-card{
    background:linear-gradient(160deg,rgba(255,255,255,0.06),rgba(255,255,255,0.015));
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border:1px solid rgba(255,255,255,0.08);
    border-radius:16px;
    padding:16px 18px;
    box-shadow:var(--shadow-card);
    transition:border-color .24s var(--ease),transform .24s var(--ease);
  }
  .stat-card:hover{border-color:rgba(35,224,200,.34);transform:translateY(-3px)}
  .stat-num{font-size:clamp(24px,2.6vw,32px);font-weight:700;line-height:1.2;color:var(--primary)}
  .stat-num.accent{color:var(--accent)}
  .stat-label{font-size:13px;line-height:1.6;color:var(--text-2);margin-top:4px}

  /* ============ 主体两栏 ============ */
  .cat-body{padding:64px 0 0}
  @media(min-width:1024px){.cat-body{padding:80px 0 0}}
  .cat-layout{display:grid;grid-template-columns:1fr;gap:32px}
  @media(min-width:1024px){.cat-layout{grid-template-columns:252px 1fr;gap:56px}}

  .anchor-nav{
    background:linear-gradient(160deg,rgba(255,255,255,0.05),rgba(255,255,255,0.012));
    border:1px solid rgba(255,255,255,0.08);
    border-radius:var(--radius-card);
    padding:18px;
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
  }
  @media(min-width:1024px){.anchor-nav{position:sticky;top:96px;align-self:start}}
  .anchor-title{
    font-size:12px;letter-spacing:1.6px;color:var(--text-3);
    margin:0 0 10px;padding-left:12px;
  }
  .anchor-list{display:flex;flex-direction:row;flex-wrap:wrap;gap:4px}
  @media(min-width:1024px){.anchor-list{flex-direction:column;flex-wrap:nowrap}}
  .anchor-list a{
    position:relative;display:block;
    padding:9px 12px;border-radius:10px;
    font-size:14.5px;color:var(--text-2);text-decoration:none;
    transition:color .2s var(--ease),background-color .2s var(--ease);
  }
  .anchor-list a::before{
    content:"";position:absolute;left:0;top:50%;transform:translateY(-50%);
    width:3px;height:0;border-radius:3px;background:var(--primary);
    transition:height .24s var(--ease);
  }
  .anchor-list a:hover{color:var(--text-1);background:rgba(255,255,255,.03)}
  .anchor-list a.active{color:var(--primary);background:rgba(35,224,200,.08)}
  .anchor-list a.active::before{height:18px}

  .cat-content > section + section{margin-top:64px}
  .block-sub{font-size:15px;color:var(--text-2);max-width:660px;margin:12px 0 26px}

  /* 功能索引网格 */
  .index-grid{display:grid;grid-template-columns:1fr;gap:16px}
  @media(min-width:768px){.index-grid{grid-template-columns:repeat(2,1fr)}}
  @media(min-width:1280px){.index-grid{grid-template-columns:repeat(3,1fr)}}
  .index-card{
    display:flex;flex-direction:column;gap:12px;
    padding:22px;
    border-radius:var(--radius-card);
    border:1px solid rgba(255,255,255,0.08);
    background:linear-gradient(160deg,rgba(255,255,255,0.055),rgba(255,255,255,0.015));
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    box-shadow:var(--shadow-card);
    transition:border-color .24s var(--ease),transform .24s var(--ease),box-shadow .24s var(--ease);
  }
  .index-card:hover{
    border-color:rgba(35,224,200,.34);
    transform:translateY(-4px);
    box-shadow:var(--shadow-card),0 0 40px -14px var(--primary-glow);
  }
  .index-card p{font-size:14.5px;color:var(--text-2)}

  /* 图文块 */
  .feature-block{padding-bottom:56px;border-bottom:1px solid var(--line)}
  .feature-block:last-of-type{border-bottom:none}
  .feature-row{display:grid;grid-template-columns:1fr;gap:26px;align-items:center}
  @media(min-width:900px){
    .feature-row{grid-template-columns:1fr 1fr;gap:48px}
    .feature-row.reverse .feature-media{order:2}
  }
  .feature-media{
    position:relative;overflow:hidden;
    border-radius:var(--radius-card);
    border:1px solid rgba(35,224,200,.22);
    box-shadow:var(--shadow-card);
  }
  .feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
  .feature-media::after{
    content:"";position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(5,7,14,0) 42%,rgba(5,7,14,0.55) 100%);
  }
  .feature-text h2{margin:14px 0 14px}
  .feature-text p{font-size:15.5px;color:var(--text-2)}

  .point-list{display:grid;gap:11px;margin-top:20px}
  .point-list li{display:flex;gap:10px;align-items:flex-start;font-size:15px;color:var(--text-2)}
  .point-list li svg{flex:none;margin-top:4px;color:var(--primary)}

  /* 参数区 */
  .spec-panel{
    padding:24px 26px;
    border-radius:var(--radius-card);
    border:1px solid var(--line);
    background:var(--bg-panel);
    box-shadow:var(--shadow-card);
  }
  .spec-panel > h2{font-size:clamp(21px,2.4vw,26px);margin-bottom:6px}
  .spec-panel > .spec-sub{font-size:14.5px;color:var(--text-2);margin-bottom:14px}
  .spec-row{
    display:flex;justify-content:space-between;gap:18px;align-items:baseline;
    padding:13px 0;border-bottom:1px solid var(--line);
    font-size:14.5px;
  }
  .spec-row:last-child{border-bottom:none;padding-bottom:2px}
  .spec-key{color:var(--text-3)}
  .spec-val{color:var(--text-1);text-align:right}
  @media(max-width:640px){
    .spec-row{flex-direction:column;gap:4px}
    .spec-val{text-align:left}
  }

  /* ============ 底部 CTA ============ */
  .cta-band{
    position:relative;overflow:hidden;
    margin-top:72px;
    padding:60px 0;
    background:var(--bg-deep);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
  }
  .cta-band::before{
    content:"";position:absolute;inset:0;
    background-image:radial-gradient(560px 280px at 18% 0%, rgba(35,224,200,0.16), transparent 68%);
  }
  .cta-inner{
    position:relative;z-index:2;
    display:grid;grid-template-columns:1fr;gap:28px;align-items:center;
  }
  @media(min-width:1024px){.cta-inner{grid-template-columns:1.6fr .9fr;gap:48px}}
  .cta-inner p{font-size:15.5px;color:var(--text-2);margin-top:14px;max-width:620px}
  .cta-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:26px}
  .cta-visual{
    border-radius:var(--radius-card);
    overflow:hidden;
    border:1px solid rgba(35,224,200,.22);
    box-shadow:var(--shadow-card);
  }
  .cta-visual img{width:100%;aspect-ratio:16/10;object-fit:cover}

  /* ============ 页脚 ============ */
  .site-footer{background:var(--bg-deep);border-top:1px solid var(--line)}
  .footer-grid{display:grid;grid-template-columns:1fr;gap:34px;padding:60px 0 38px}
  @media(min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
  @media(min-width:1024px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr;gap:40px}}
  .footer-brand{display:flex;flex-direction:column;gap:14px}
  .footer-brand p{font-size:14.5px;color:var(--text-2);max-width:340px}
  .footer-social{display:flex;gap:10px}
  .footer-social a{
    display:inline-flex;align-items:center;justify-content:center;
    width:38px;height:38px;border-radius:12px;
    border:1px solid var(--line);
    color:var(--text-2);text-decoration:none;
    transition:color .2s var(--ease),border-color .2s var(--ease),background-color .2s var(--ease);
  }
  .footer-social a:hover{color:var(--primary);border-color:rgba(35,224,200,.42);background:rgba(35,224,200,.08)}
  .footer-col h4{font-size:14px;letter-spacing:1px;margin-bottom:14px;color:var(--text-1)}
  .footer-col ul{display:grid;gap:10px}
  .footer-col a{
    font-size:14.5px;color:var(--text-2);text-decoration:none;
    transition:color .2s var(--ease);
  }
  .footer-col a:hover{color:var(--primary)}
  .footer-note{font-size:14px;color:var(--text-2);margin-bottom:12px}
  .footer-form{display:flex;flex-wrap:wrap;gap:8px}
  .footer-form input{
    flex:1 1 150px;height:40px;padding:0 12px;
    border-radius:12px;border:1px solid var(--line);
    background:var(--bg-panel);color:var(--text-1);font-size:14px;
    transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
  }
  .footer-form input::placeholder{color:var(--text-3)}
  .footer-form input:focus{
    outline:none;border-color:var(--primary);
    box-shadow:0 0 0 3px rgba(35,224,200,.18);
  }
  .footer-bottom{
    display:flex;flex-wrap:wrap;gap:12px;
    justify-content:space-between;align-items:center;
    padding:18px 0 26px;
    border-top:1px solid var(--line);
    font-size:13px;color:var(--text-3);
  }
  .footer-bottom ul{display:flex;flex-wrap:wrap;gap:16px}
  .footer-bottom a{color:var(--text-3);text-decoration:none;transition:color .2s var(--ease)}
  .footer-bottom a:hover{color:var(--primary)}

  /* ============ 移动端导航 ============ */
  @media(max-width:1023px){
    .nav-grid{display:flex;justify-content:space-between;align-items:center;height:64px}
    .nav-left{display:none}
    .nav-right{gap:10px}
    .nav-right .nav-links{display:none}
    .nav-right > .btn{display:none}
    .nav-toggle{display:inline-flex}
    .brand{justify-self:flex-start;font-size:17px}
  }

  @media(max-width:767px){
    .cat-body{padding:52px 0 0}
    .cat-content > section + section{margin-top:48px}
    .feature-block{padding-bottom:44px}
    .cta-band{margin-top:56px;padding:48px 0}
    .index-card{padding:18px}
  }

  @media (prefers-reduced-motion: reduce){
    html{scroll-behavior:auto}
    *,*::before,*::after{
      transition-duration:0.001ms !important;
      animation-duration:0.001ms !important;
    }
  }

/* roulang page: category2 */
:root{
  --bg-root:#05070E;
  --bg-deep:#0A0F1C;
  --bg-panel:#101827;
  --line:rgba(148,178,205,0.14);
  --line-soft:rgba(255,255,255,0.08);
  --primary:#23E0C8;
  --primary-strong:#10B39F;
  --primary-glow:rgba(35,224,200,0.35);
  --accent:#FF7A2F;
  --accent-glow:rgba(255,122,47,0.35);
  --text-1:#EAF2FA;
  --text-2:#A7B6C8;
  --text-3:#6C7C90;
  --r-card:18px;
  --r-sm:14px;
  --r-input:12px;
  --shadow-card:0 24px 60px -32px rgba(0,0,0,0.95);
  --ease:cubic-bezier(.2,.7,.3,1);
}

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

html{scroll-behavior:smooth;}

body{
  margin:0;
  padding:0;
  background-color:var(--bg-root);
  color:var(--text-1);
  font-family:"Inter","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}

body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(760px 520px at 8% -6%, rgba(35,224,200,0.10), transparent 62%),
    radial-gradient(680px 460px at 100% 106%, rgba(255,122,47,0.055), transparent 66%);
}

body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(148,178,205,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(148,178,205,0.025) 1px, transparent 1px);
  background-size:64px 64px;
}

img{max-width:100%;display:block;border-style:none;}
a{color:inherit;text-decoration:none;}
button{font:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4,p{margin:0;}

:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  border-radius:4px;
}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding:0 20px;
  position:relative;
  z-index:1;
}
@media (min-width:640px){ .container{padding:0 24px;} }
@media (min-width:1024px){ .container{padding:0 32px;} }

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:60;
  background:rgba(5,7,14,0.72);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--line);
}
.site-header .container{ z-index:auto; }

.nav-grid{
  display:grid;
  grid-template-columns:1fr auto 1fr;
  align-items:center;
  gap:16px;
  height:72px;
}
.nav-links{
  display:flex;
  align-items:center;
  gap:22px;
}
.nav-left{ justify-self:start; }
.nav-right{
  justify-self:end;
  display:flex;
  align-items:center;
  gap:14px;
}
.nav-link{
  position:relative;
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:8px 2px;
  font-size:15px;
  color:var(--text-2);
  transition:color .2s var(--ease);
}
.nav-link:hover{ color:var(--primary); }
.nav-link.active{ color:var(--primary); font-weight:600; }
.nav-link.active::after{
  content:"";
  position:absolute;
  left:0;right:0;bottom:-2px;
  height:2px;
  border-radius:2px;
  background:var(--primary);
  box-shadow:0 0 12px var(--primary-glow);
}
.nav-dot{
  width:6px;height:6px;
  border-radius:50%;
  background:currentColor;
  display:none;
}
.nav-link.active .nav-dot{ display:inline-block; }

.brand{
  justify-self:center;
  display:inline-flex;
  align-items:center;
  gap:10px;
  font-size:19px;
  font-weight:700;
  letter-spacing:.2px;
  color:var(--text-1);
}
.brand-mark{
  width:26px;height:26px;
  flex:none;
  background:linear-gradient(140deg,#23E0C8,#10B39F);
  clip-path:polygon(50% 0%,93% 25%,93% 75%,50% 100%,7% 75%,7% 25%);
  box-shadow:0 0 18px -4px var(--primary-glow);
}
.brand-accent{ color:var(--primary); }

.nav-toggle{
  display:none;
  align-items:center;
  justify-content:center;
  width:44px;height:44px;
  border-radius:12px;
  border:1px solid var(--line);
  background:rgba(255,255,255,0.03);
  color:var(--text-1);
  cursor:pointer;
  transition:border-color .2s var(--ease), background-color .2s var(--ease);
}
.nav-toggle:hover{ border-color:rgba(35,224,200,0.42); background:rgba(35,224,200,0.08); }

.nav-mobile-panel{
  display:none;
  flex-direction:column;
  padding:10px 20px 22px;
  background:rgba(5,7,14,0.96);
  border-bottom:1px solid var(--line);
  backdrop-filter:blur(16px);
}
.nav-mobile-panel.open{ display:flex; }
.m-link{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:48px;
  padding:0 4px;
  font-size:15px;
  color:var(--text-2);
  border-bottom:1px solid var(--line);
  transition:color .2s var(--ease);
}
.m-link:hover,.m-link.active{ color:var(--primary); }
.m-cta{ padding-top:18px; }

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  height:48px;
  padding:0 28px;
  border-radius:999px;
  border:1px solid transparent;
  font-size:15px;
  font-weight:600;
  white-space:nowrap;
  cursor:pointer;
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), background-color .22s var(--ease), border-color .22s var(--ease);
}
.btn-sm{ height:40px; padding:0 20px; font-size:14px; }
.btn-primary{
  background:linear-gradient(120deg,#23E0C8,#10B39F);
  color:#04121A;
  box-shadow:0 0 0 1px rgba(35,224,200,0.35), 0 12px 34px -12px var(--primary-glow);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(35,224,200,0.48), 0 18px 44px -12px var(--primary-glow);
}
.btn-primary:active{ transform:translateY(1px); box-shadow:0 0 0 1px rgba(35,224,200,0.3), 0 8px 20px -12px var(--primary-glow); }
.btn-accent{
  background:linear-gradient(120deg,#FF7A2F,#FF9A4D);
  color:#1A0A02;
  box-shadow:0 0 0 1px rgba(255,122,47,0.35), 0 12px 34px -12px var(--accent-glow);
}
.btn-accent:hover{
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(255,122,47,0.5), 0 18px 44px -12px var(--accent-glow);
}
.btn-accent:active{ transform:translateY(1px); }
.btn-ghost{
  background:transparent;
  border-color:rgba(35,224,200,0.42);
  color:var(--primary);
}
.btn-ghost:hover{ background:rgba(35,224,200,0.10); transform:translateY(-2px); }
.btn-ghost:active{ transform:translateY(1px); }

.link-arrow{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:14px;
  font-weight:600;
  color:var(--primary);
}
.link-arrow svg{ transition:transform .2s var(--ease); }
.link-arrow:hover svg{ transform:translateX(4px); }

/* ---------- 徽章 / 面包屑 ---------- */
.badge{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:4px 12px;
  border-radius:999px;
  border:1px solid rgba(35,224,200,0.42);
  background:rgba(35,224,200,0.08);
  color:var(--primary);
  font-size:12px;
  line-height:1.6;
  letter-spacing:.4px;
}
.badge-accent{
  border-color:rgba(255,122,47,0.45);
  background:rgba(255,122,47,0.10);
  color:var(--accent);
}

.breadcrumb{ font-size:13px; color:var(--text-3); margin-bottom:18px; }
.breadcrumb ol{ display:flex; flex-wrap:wrap; align-items:center; gap:8px; }
.breadcrumb li{ display:flex; align-items:center; gap:8px; }
.breadcrumb li+li::before{ content:"/"; color:rgba(148,178,205,0.35); }
.breadcrumb a{ color:var(--text-3); transition:color .2s var(--ease); }
.breadcrumb a:hover{ color:var(--primary); }
.breadcrumb li[aria-current] span,
.breadcrumb li[aria-current]{ color:var(--text-1); }

/* ---------- 板块 ---------- */
.section{ padding:56px 0; position:relative; }
@media (min-width:768px){ .section{ padding:72px 0; } }
@media (min-width:1024px){ .section{ padding:96px 0; } }
.section-deep{ background:var(--bg-deep); border-top:1px solid var(--line); border-bottom:1px solid var(--line); }

.section-head{
  display:flex;
  flex-wrap:wrap;
  align-items:flex-end;
  justify-content:space-between;
  gap:18px;
  margin-bottom:40px;
}
.section-head h2{
  font-size:clamp(23px,3vw,33px);
  line-height:1.28;
  font-weight:700;
  letter-spacing:-.3px;
}
.section-head p{
  margin-top:12px;
  font-size:14px;
  line-height:1.7;
  color:var(--text-2);
  max-width:640px;
}

/* ---------- 分类页 Hero ---------- */
.cat-hero{
  position:relative;
  overflow:hidden;
  background:
    radial-gradient(720px 420px at 10% 0%, rgba(35,224,200,0.16), transparent 62%),
    linear-gradient(90deg, rgba(10,15,28,0.97) 0%, rgba(10,15,28,0.86) 46%, rgba(10,15,28,0.58) 100%),
    url('/assets/images/backpic/back-2.png') center/cover no-repeat,
    var(--bg-deep);
  border-bottom:1px solid var(--line);
}
.cat-hero .container{ z-index:2; }
.cat-hero-inner{
  display:grid;
  gap:28px;
  align-items:center;
  padding:52px 0 56px;
}
@media (min-width:1024px){
  .cat-hero-inner{ grid-template-columns:1.4fr 1fr; padding:64px 0 72px; }
}
.cat-hero h1{
  font-size:clamp(28px,4vw,46px);
  line-height:1.2;
  font-weight:700;
  letter-spacing:-.5px;
  margin:18px 0 16px;
  max-width:20em;
}
.hero-sub{
  font-size:16px;
  line-height:1.8;
  color:var(--text-2);
  max-width:56ch;
}
.hero-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:28px;
}
.cat-hero-art{
  display:none;
  justify-content:center;
  color:var(--primary);
}
@media (min-width:1024px){ .cat-hero-art{ display:flex; } }
.cat-hero-art svg{ width:100%; max-width:360px; opacity:.75; }

/* ---------- 快速入口 ---------- */
.quick-grid{
  display:grid;
  gap:18px;
}
@media (min-width:768px){ .quick-grid{ grid-template-columns:repeat(3,1fr); } }
.quick-card{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:22px 24px;
  border-radius:var(--r-card);
  border:1px solid var(--line-soft);
  background:linear-gradient(160deg, rgba(255,255,255,0.055), rgba(255,255,255,0.015));
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease), border-color .24s var(--ease), box-shadow .24s var(--ease);
}
.quick-card:hover{
  transform:translateY(-4px);
  border-color:rgba(35,224,200,0.34);
  box-shadow:var(--shadow-card), 0 0 40px -14px var(--primary-glow);
}
.quick-num{
  display:block;
  font-size:12.5px;
  letter-spacing:1.4px;
  color:var(--primary);
  margin-bottom:6px;
}
.quick-card h3{
  font-size:18px;
  font-weight:600;
  line-height:1.45;
  margin-bottom:6px;
}
.quick-card p{
  font-size:14px;
  line-height:1.7;
  color:var(--text-2);
  max-width:32ch;
}
.quick-card .link-arrow{ flex:none; }

/* ---------- 参数清单 ---------- */
.spec-list{
  border-radius:var(--r-card);
  border:1px solid var(--line);
  background:var(--bg-panel);
  overflow:hidden;
}
.spec-row{
  display:flex;
  flex-wrap:wrap;
  gap:8px 20px;
  align-items:baseline;
  justify-content:space-between;
  padding:18px 24px;
  border-bottom:1px solid var(--line);
  transition:background-color .2s var(--ease);
}
.spec-row:last-child{ border-bottom:none; }
.spec-row:hover{ background:rgba(35,224,200,0.05); }
.spec-label{
  font-size:14px;
  color:var(--text-3);
  min-width:120px;
}
.spec-value{
  font-size:15px;
  color:var(--text-1);
  flex:1 1 320px;
  text-align:right;
}
@media (max-width:767px){
  .spec-row{ flex-direction:column; align-items:flex-start; padding:16px 18px; }
  .spec-value{ text-align:left; flex-basis:auto; }
}

/* ---------- 指南卡片网格 ---------- */
.guide-grid{
  display:grid;
  gap:20px;
}
@media (min-width:768px){ .guide-grid{ grid-template-columns:repeat(2,1fr); } }
.guide-card{
  display:flex;
  gap:18px;
  padding:24px;
  border-radius:var(--r-card);
  border:1px solid var(--line-soft);
  background:linear-gradient(160deg, rgba(255,255,255,0.055), rgba(255,255,255,0.015));
  backdrop-filter:blur(14px);
  box-shadow:var(--shadow-card);
  transition:transform .24s var(--ease), border-color .24s var(--ease), box-shadow .24s var(--ease);
}
.guide-card:hover{
  transform:translateY(-4px);
  border-color:rgba(35,224,200,0.34);
  box-shadow:var(--shadow-card), 0 0 40px -14px var(--primary-glow);
}
.guide-thumb{
  flex:none;
  width:64px;
  height:64px;
  border-radius:var(--r-sm);
  object-fit:cover;
  border:1px solid var(--line);
}
.guide-body{ flex:1; min-width:0; }
.guide-index{
  display:inline-block;
  padding:2px 10px;
  margin-bottom:10px;
  border-radius:999px;
  border:1px solid rgba(35,224,200,0.42);
  background:rgba(35,224,200,0.08);
  color:var(--primary);
  font-size:12px;
  letter-spacing:1px;
}
.guide-body h3{
  font-size:19px;
  font-weight:600;
  line-height:1.45;
  margin-bottom:8px;
}
.guide-body p{
  font-size:14px;
  line-height:1.75;
  color:var(--text-2);
  margin-bottom:14px;
}

/* ---------- FAQ ---------- */
.faq-list{ display:flex; flex-direction:column; gap:12px; }
.faq-item{
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:var(--bg-panel);
  transition:border-color .22s var(--ease);
}
.faq-item.open{ border-color:rgba(35,224,200,0.34); }
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  padding:18px 22px;
  background:none;
  border:none;
  text-align:left;
  font-size:16.5px;
  font-weight:600;
  color:var(--text-1);
  cursor:pointer;
  transition:color .2s var(--ease);
}
.faq-q:hover{ color:var(--primary); }
.faq-icon{
  flex:none;
  width:22px;height:22px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:var(--primary);
  transition:transform .28s var(--ease);
}
.faq-item.open .faq-icon{ transform:rotate(45deg); }
.faq-a{
  display:grid;
  grid-template-rows:0fr;
  transition:grid-template-rows .3s var(--ease);
}
.faq-item.open .faq-a{ grid-template-rows:1fr; }
.faq-a-inner{ overflow:hidden; }
.faq-a-inner p{
  padding:0 22px 20px;
  font-size:15px;
  line-height:1.85;
  color:var(--text-2);
}

/* ---------- CTA 横幅 ---------- */
.cta-band{
  position:relative;
  overflow:hidden;
  border-radius:24px;
  border:1px solid var(--line);
  background:
    radial-gradient(560px 320px at 82% 20%, rgba(35,224,200,0.16), transparent 66%),
    var(--bg-deep);
  padding:40px 28px;
}
@media (min-width:768px){ .cta-band{ padding:56px 48px; } }
.cta-band-inner{
  display:grid;
  gap:28px;
  align-items:center;
}
@media (min-width:1024px){ .cta-band-inner{ grid-template-columns:1.5fr 1fr; } }
.cta-band h2{
  font-size:clamp(22px,2.8vw,30px);
  line-height:1.32;
  font-weight:700;
  margin-bottom:12px;
}
.cta-band p{
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
  max-width:52ch;
}
.cta-actions{
  display:flex;
  flex-wrap:wrap;
  gap:14px;
  margin-top:24px;
}
.cta-art{ display:none; justify-content:flex-end; color:var(--primary); }
@media (min-width:1024px){ .cta-art{ display:flex; } }
.cta-art svg{ width:100%; max-width:300px; opacity:.7; }

/* ---------- 页脚 ---------- */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--line);
  padding:56px 0 0;
  position:relative;
  z-index:1;
}
.footer-grid{
  display:grid;
  gap:36px;
}
@media (min-width:768px){ .footer-grid{ grid-template-columns:repeat(2,1fr); } }
@media (min-width:1024px){ .footer-grid{ grid-template-columns:1.5fr 1fr 1fr 1.2fr; gap:32px; } }
.footer-brand{ display:flex; flex-direction:column; gap:16px; align-items:flex-start; }
.footer-brand p{
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
  max-width:34ch;
}
.footer-social{ display:flex; gap:12px; }
.footer-social a{
  width:38px;height:38px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  border-radius:12px;
  border:1px solid var(--line);
  color:var(--text-2);
  transition:color .2s var(--ease), border-color .2s var(--ease), background-color .2s var(--ease);
}
.footer-social a:hover{
  color:var(--primary);
  border-color:rgba(35,224,200,0.42);
  background:rgba(35,224,200,0.08);
}
.footer-col h4{
  font-size:15px;
  font-weight:600;
  color:var(--text-1);
  margin-bottom:16px;
}
.footer-col ul{ display:flex; flex-direction:column; gap:10px; }
.footer-col a{
  font-size:14px;
  color:var(--text-2);
  transition:color .2s var(--ease);
}
.footer-col a:hover{ color:var(--primary); }
.footer-note{
  font-size:14px;
  line-height:1.75;
  color:var(--text-3);
  margin-bottom:16px;
}
.footer-bottom{
  margin-top:48px;
  padding:20px 0;
  border-top:1px solid var(--line);
  display:flex;
  flex-wrap:wrap;
  gap:12px 24px;
  align-items:center;
  justify-content:space-between;
  font-size:13px;
  color:var(--text-3);
}
.footer-bottom ul{ display:flex; flex-wrap:wrap; gap:18px; }
.footer-bottom a{ color:var(--text-3); transition:color .2s var(--ease); }
.footer-bottom a:hover{ color:var(--primary); }

/* ---------- 动效降级 ---------- */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *,*::before,*::after{
    animation-duration:.001ms !important;
    animation-iteration-count:1 !important;
    transition-duration:.001ms !important;
  }
  .quick-card:hover,.guide-card:hover,.btn:hover{ transform:none; }
}

/* ---------- 导航断点 ---------- */
@media (max-width:1023px){
  .nav-grid{
    display:flex;
    justify-content:space-between;
    height:64px;
  }
  .nav-left{ display:none; }
  .nav-right ul{ display:none; }
  .nav-right .btn-ghost{ display:none; }
  .nav-toggle{ display:inline-flex; }
  .brand{ order:-1; font-size:18px; }
  .brand-mark{ width:24px;height:24px; }
}