/* roulang page: index */
:root{
  --bg-0:#05080F;
  --bg-1:#0A111E;
  --bg-2:#0E1728;
  --brand:#4A6CF7;
  --brand-2:#7C93FF;
  --glow:#38E1C6;
  --warm:#F0A24B;
  --text-1:#EAF0FF;
  --text-2:#A8B6D4;
  --text-3:#6B7B99;
  --line:rgba(120,150,220,.14);
  --line-strong:rgba(120,150,220,.28);
  --glass:rgba(18,28,48,.62);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 20px 40px -24px rgba(0,0,0,.75), inset 0 1px 0 rgba(255,255,255,.05);
  --shadow-hover:0 28px 56px -28px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  --t:220ms cubic-bezier(.2,.7,.3,1);
  --container:1200px;
}

*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:linear-gradient(180deg,#05080F 0%,#0A111E 100%);
  color:var(--text-2);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;border-style:none}
a{color:var(--text-1);text-decoration:none;transition:color var(--t)}
a:hover{color:var(--glow)}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible,select:focus-visible{
  outline:2px solid var(--glow);outline-offset:2px;border-radius:6px;
}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}

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

/* ============ 顶部导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1030;
  background:rgba(5,8,15,.82);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav-top-inner{display:flex;align-items:center;gap:20px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;flex-shrink:0;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  display:grid;place-items:center;color:#fff;font-weight:800;font-size:15px;
  box-shadow:0 12px 32px -12px rgba(74,108,247,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{color:var(--text-1);font-size:15px;font-weight:700;letter-spacing:.03em}
.brand-text span{color:var(--text-3);font-size:11px;letter-spacing:.04em}

.nav-search{flex:1 1 auto;max-width:420px;min-width:200px;position:relative;display:none}
@media (min-width:768px){.nav-search{display:block}}
.nav-search i{position:absolute;left:14px;top:50%;transform:translateY(-50%);color:var(--text-3);font-size:13px;pointer-events:none}
.nav-search input{
  width:100%;height:40px;border-radius:var(--r-sm);
  background:var(--glass);border:1px solid var(--line);
  color:var(--text-1);padding:0 16px 0 38px;font-size:14px;
  transition:border-color var(--t),box-shadow var(--t);
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{outline:none;border-color:var(--glow);box-shadow:0 0 0 3px rgba(56,225,198,.16)}

.nav-actions{margin-left:auto;display:flex;align-items:center;gap:12px}
.icon-btn{
  width:40px;height:40px;border-radius:var(--r-sm);border:1px solid var(--line);
  background:var(--glass);color:var(--text-2);display:grid;place-items:center;
  cursor:pointer;transition:color var(--t),border-color var(--t);
}
.icon-btn:hover{color:var(--glow);border-color:var(--line-strong)}
@media (min-width:768px){.icon-btn.search-toggle{display:none}}

.nav-tabs-bar{border-top:1px solid var(--line)}
.tabs-list{
  display:flex;align-items:center;gap:6px;height:48px;
  overflow-x:auto;overflow-y:hidden;scrollbar-width:none;
  -ms-overflow-style:none;
}
.tabs-list::-webkit-scrollbar{display:none}
.tabs-list li{flex:0 0 auto}
.tabs-list a{
  position:relative;display:inline-flex;align-items:center;height:48px;padding:0 14px;
  font-size:14px;color:var(--text-3);white-space:nowrap;
}
.tabs-list a:hover{color:var(--text-2)}
.tabs-list a.active{color:var(--text-1);font-weight:600}
.tabs-list a.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);bottom:0;
  width:calc(100% - 12px);height:2px;border-radius:2px;
  background:var(--glow);box-shadow:0 0 12px rgba(56,225,198,.85);
}

/* ============ 按钮 ============ */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 26px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;line-height:1;text-align:center;
  border:1px solid transparent;cursor:pointer;
  transition:transform var(--t),box-shadow var(--t),background var(--t),border-color var(--t),color var(--t);
}
.btn-sm{height:40px;padding:0 18px;font-size:14px}
.btn-glow{
  background:linear-gradient(135deg,#4A6CF7,#7C93FF);
  color:#fff;border-color:transparent;
  box-shadow:0 12px 32px -12px rgba(74,108,247,.9);
}
.btn-glow:hover{color:#fff;transform:translateY(-2px);box-shadow:0 18px 44px -14px rgba(74,108,247,1)}
.btn-glow:active{transform:translateY(0);box-shadow:0 8px 20px -12px rgba(74,108,247,.7)}
.btn-ghost{
  background:transparent;border-color:var(--line-strong);color:var(--text-1);
}
.btn-ghost:hover{color:var(--text-1);border-color:var(--glow);background:rgba(56,225,198,.07);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}

/* ============ 首屏 ============ */
.hero{position:relative;overflow:hidden;padding:88px 0 96px;isolation:isolate}
.hero-bg{
  position:absolute;inset:0;z-index:0;
  background-image:url('/assets/images/backpic/back-1.webp');
  background-size:cover;background-position:center;
}
.hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(180deg,rgba(5,8,15,.68) 0%,rgba(5,8,15,.9) 100%);
}
.hero-gridlines{
  position:absolute;inset:0;z-index:0;opacity:.05;
  background-image:linear-gradient(rgba(120,150,220,.9) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(120,150,220,.9) 1px,transparent 1px);
  background-size:64px 64px;
}
.hero-glow{position:absolute;border-radius:50%;filter:blur(90px);opacity:.06;z-index:0;pointer-events:none}
.hero-glow--a{width:520px;height:520px;background:var(--brand);top:-170px;right:-90px}
.hero-glow--b{width:420px;height:420px;background:var(--glow);bottom:-190px;left:-130px}
.hero-inner{position:relative;z-index:1;display:grid;grid-template-columns:1fr;gap:48px;align-items:center}
@media (min-width:992px){.hero-inner{grid-template-columns:1.4fr 1fr;gap:56px}}

.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  font-size:12px;color:var(--glow);padding:5px 12px;border-radius:999px;
  background:rgba(56,225,198,.10);border:1px solid rgba(56,225,198,.22);
  margin-bottom:20px;
}
.hero-badge .dot{
  width:6px;height:6px;border-radius:50%;background:var(--glow);
  box-shadow:0 0 10px rgba(56,225,198,.9);
}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.15;font-weight:800;
  letter-spacing:-.01em;margin-bottom:18px;
}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px;margin-bottom:32px}
@media (min-width:992px){.hero-sub{font-size:18px}}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:36px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:8px 32px;
  font-size:13px;color:var(--text-3);
}
.hero-stats li{display:flex;align-items:baseline;gap:8px}
.hero-stats b{
  font-size:18px;font-weight:800;color:var(--text-1);
  font-variant-numeric:tabular-nums;
}

.hero-card{
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);border-radius:var(--r-lg);
  padding:14px;box-shadow:var(--shadow);
}
.hero-card-img{aspect-ratio:16/10;border-radius:14px;overflow:hidden;background:var(--bg-2)}
.hero-card-img img{width:100%;height:100%;object-fit:cover}
.hero-card-body{padding:16px 6px 4px;display:flex;align-items:center;justify-content:space-between;gap:16px;flex-wrap:wrap}
.hero-card-body p{font-size:14px;color:var(--text-2);flex:1 1 160px}

/* ============ 通用板块 ============ */
.section{padding:96px 0}
@media (max-width:991px){.section{padding:72px 0}}
@media (max-width:767px){.section{padding:56px 0}}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:48px;flex-wrap:wrap}
.section-head--center{flex-direction:column;align-items:center;text-align:center}
.kicker{
  display:inline-block;font-size:12px;font-weight:600;letter-spacing:.12em;
  color:var(--glow);margin-bottom:12px;
}
.section-title{font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700}
.section-desc{font-size:15px;color:var(--text-2);max-width:620px;margin-top:12px}
.link-more{font-size:14px;color:var(--glow);display:inline-flex;align-items:center;gap:6px}
.link-more:hover{color:var(--text-1)}
.link-more i{transition:transform var(--t)}
.link-more:hover i{transform:translateX(4px)}

/* ============ 痛点区 ============ */
.pain-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:992px){.pain-grid{grid-template-columns:4fr 6fr;gap:72px;align-items:start}}
.pain-intro h2{font-size:clamp(24px,3vw,34px);line-height:1.25;margin-bottom:16px}
.pain-intro p{font-size:15px;color:var(--text-2);max-width:340px}
.pain-list{display:flex;flex-direction:column}
.pain-item{display:flex;gap:20px;padding:26px 0;border-top:1px solid var(--line)}
.pain-item:last-child{border-bottom:1px solid var(--line)}
.pain-icon{
  width:44px;height:44px;flex:0 0 44px;border-radius:var(--r-sm);
  display:grid;place-items:center;font-size:16px;
  background:rgba(240,162,75,.12);border:1px solid rgba(240,162,75,.24);color:var(--warm);
}
.pain-item h3{font-size:17px;line-height:1.45;font-weight:600;margin-bottom:6px}
.pain-item p{font-size:14px;color:var(--text-2)}

/* ============ 方案区（2×2 不对称） ============ */
.solution-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:992px){.solution-grid{grid-template-columns:repeat(2,1fr)}}
.solution-card{
  border-radius:var(--r-lg);border:1px solid var(--line);
  padding:28px;transition:transform var(--t),border-color var(--t),box-shadow var(--t);
  box-shadow:var(--shadow);
}
.solution-card:hover{transform:translateY(-4px);border-color:rgba(56,225,198,.28);box-shadow:var(--shadow-hover)}
.solution-card--glass{
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
.solution-card--solid{background:linear-gradient(160deg,#0E1728,#0A111E)}
@media (min-width:992px){.solution-card--wide{grid-column:span 2}}

.solution-card--wide{display:grid;grid-template-columns:1fr;gap:24px;align-items:center;padding:32px}
@media (min-width:768px){.solution-card--wide{grid-template-columns:1fr 1fr;gap:32px}}
.solution-figure{aspect-ratio:16/10;border-radius:var(--r-md);overflow:hidden;background:var(--bg-2)}
.solution-figure img{width:100%;height:100%;object-fit:cover;transition:transform 220ms cubic-bezier(.2,.7,.3,1)}
.solution-card:hover .solution-figure img{transform:scale(1.04)}
.solution-card h3{font-size:20px;line-height:1.4;font-weight:600;margin-bottom:12px}
.solution-card p{font-size:15px;color:var(--text-2)}
.solution-icon{
  width:44px;height:44px;border-radius:var(--r-sm);display:grid;place-items:center;
  font-size:17px;margin-bottom:18px;
  background:rgba(56,225,198,.10);border:1px solid rgba(56,225,198,.22);color:var(--glow);
}
.tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:20px}
.pill{
  display:inline-flex;align-items:center;font-size:12px;padding:4px 10px;border-radius:999px;
  background:rgba(56,225,198,.10);border:1px solid rgba(56,225,198,.22);color:var(--glow);
}
.pill--warm{background:rgba(240,162,75,.12);border-color:rgba(240,162,75,.24);color:var(--warm)}

/* ============ 数据带 ============ */
.stats-band{
  display:grid;grid-template-columns:repeat(2,1fr);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
@media (min-width:768px){.stats-band{grid-template-columns:repeat(4,1fr)}}
.stat{padding:32px 20px;border-left:1px solid var(--line)}
.stat:nth-child(odd){border-left:none}
@media (min-width:768px){
  .stat:nth-child(odd){border-left:1px solid var(--line)}
  .stat:first-child{border-left:none}
}
.stat b{
  display:block;font-size:clamp(34px,5vw,52px);font-weight:800;line-height:1.1;
  color:var(--text-1);font-variant-numeric:tabular-nums;
  text-shadow:0 0 26px rgba(56,225,198,.35);
}
.stat span{display:block;font-size:13px;color:var(--text-3);margin-top:8px}

/* ============ 证言 ============ */
.quote-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.quote-grid{grid-template-columns:repeat(2,1fr);gap:28px}}
.quote-card{
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);border-radius:var(--r-lg);padding:28px;
  box-shadow:var(--shadow);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.quote-card:hover{transform:translateY(-4px);border-color:rgba(56,225,198,.28);box-shadow:var(--shadow-hover)}
@media (min-width:768px){.quote-card:nth-child(even){margin-top:28px}}
.quote-card p{font-size:15px;color:var(--text-1);line-height:1.85;margin-bottom:20px}
.quote-meta{display:flex;align-items:center;gap:12px}
.avatar{
  width:42px;height:42px;border-radius:50%;overflow:hidden;flex:0 0 42px;
  background:var(--bg-2);border:1px solid var(--line-strong);
}
.avatar img{width:100%;height:100%;object-fit:cover}
.quote-meta b{display:block;font-size:14px;color:var(--text-1);font-weight:600}
.quote-meta span{display:block;font-size:12px;color:var(--text-3)}

/* ============ 最新信息（CMS） ============ */
.post-lead-wrap{display:block}
.post-card{
  display:block;overflow:hidden;
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  transition:transform var(--t),border-color var(--t),box-shadow var(--t);
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(56,225,198,.28);box-shadow:var(--shadow-hover)}
.post-cover{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2)}
.post-cover img{width:100%;height:100%;object-fit:cover;transition:transform 220ms cubic-bezier(.2,.7,.3,1)}
.post-card:hover .post-cover img{transform:scale(1.04)}
.post-body{padding:22px}
.post-body h3{
  font-size:17px;line-height:1.45;font-weight:600;margin:12px 0 10px;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-body>p{
  font-size:15px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.post-meta{
  display:flex;align-items:center;gap:10px;margin-top:18px;
  font-size:13px;color:var(--text-3);font-variant-numeric:tabular-nums;
}
.post-arrow{
  margin-left:auto;color:var(--text-3);transition:transform var(--t),color var(--t);
}
.post-card:hover .post-arrow{transform:translateX(4px);color:var(--glow)}

.post-card--lead{display:grid;grid-template-columns:1fr;margin-bottom:24px}
.post-card--lead .post-body{padding:28px}
.post-card--lead .post-body h3{font-size:22px;line-height:1.4}
@media (min-width:992px){
  .post-card--lead{grid-template-columns:5fr 7fr}
  .post-card--lead .post-cover{aspect-ratio:auto;height:100%;min-height:280px}
}

.post-grid{display:grid;grid-template-columns:1fr;gap:24px}
@media (min-width:768px){.post-grid{grid-template-columns:repeat(2,1fr)}}

.empty-state{
  min-height:240px;display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;text-align:center;border:1px dashed var(--line-strong);border-radius:var(--r-lg);
  background:rgba(18,28,48,.35);padding:40px 24px;
}
.empty-state i{font-size:40px;color:var(--text-3)}
.empty-state p{font-size:15px;color:var(--text-2)}

/* ============ FAQ ============ */
.faq-wrap{display:grid;grid-template-columns:1fr;gap:12px}
@media (min-width:992px){.faq-wrap{grid-template-columns:repeat(2,1fr);gap:12px 24px;align-items:start}}
.accordion-item{
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line)!important;
  border-radius:var(--r-md)!important;
  margin-bottom:12px;overflow:hidden;
  transition:border-color var(--t),box-shadow var(--t);
}
.accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:rgba(56,225,198,.3)!important;
}
.accordion-button{
  background:transparent!important;color:var(--text-1)!important;
  font-size:16px;font-weight:600;line-height:1.6;
  padding:20px 56px 20px 22px;box-shadow:none!important;
}
.accordion-button:not(.collapsed){color:var(--text-1)!important}
.accordion-button::after{
  content:"+";background-image:none!important;
  width:26px;height:26px;display:grid;place-items:center;
  font-size:20px;font-weight:400;color:var(--glow);
  line-height:1;margin-left:auto;transition:transform 200ms ease;
}
.accordion-button:not(.collapsed)::after{transform:rotate(45deg)}
.accordion-body{
  padding:0 22px 22px;font-size:15px;line-height:1.8;color:var(--text-2);
}

/* ============ 底部 CTA ============ */
.cta-section{padding:96px 0}
@media (max-width:991px){.cta-section{padding:72px 0}}
@media (max-width:767px){.cta-section{padding:56px 0}}
.cta-band{
  text-align:center;padding:64px 28px;border-radius:var(--r-lg);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  border:1px solid rgba(56,225,198,.28);
  box-shadow:0 0 70px -34px rgba(56,225,198,.55), var(--shadow);
}
.cta-band h2{font-size:clamp(24px,3vw,34px);line-height:1.25;margin-bottom:16px}
.cta-band p{font-size:15px;color:var(--text-2);max-width:560px;margin:0 auto 32px}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:16px}

/* ============ 页脚 ============ */
.site-footer{
  margin-top:24px;background:var(--bg-0);
  border-top:1px solid var(--line);padding-top:64px;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:40px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.5fr 1fr 1fr 1.2fr}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand b{font-size:15px;color:var(--text-1);font-weight:700}
.footer-col p{font-size:14px;color:var(--text-2);max-width:320px;margin-bottom:16px}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-1);margin-bottom:18px}
.footer-links li{margin-bottom:12px}
.footer-links a{font-size:14px;color:var(--text-2)}
.footer-links a:hover{color:var(--glow)}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-2);font-size:14px;
  transition:color var(--t),border-color var(--t);
}
.footer-social a:hover{color:var(--glow);border-color:rgba(56,225,198,.4)}
.footer-contact li{font-size:14px;color:var(--text-2);margin-bottom:12px;display:flex;gap:10px;align-items:flex-start}
.footer-contact i{color:var(--glow);margin-top:5px;font-size:13px}
.footer-bottom{
  margin-top:48px;border-top:1px solid var(--line);padding:24px 0 32px;
  display:flex;justify-content:space-between;align-items:center;gap:16px;flex-wrap:wrap;
  font-size:13px;color:var(--text-3);
}
.footer-bottom a{color:var(--text-3)}
.footer-bottom a:hover{color:var(--glow)}
.to-top{display:inline-flex;align-items:center;gap:6px}

/* ============ 动效降级 ============ */
@media (prefers-reduced-motion:reduce){
  *{transition:none!important;animation:none!important;scroll-behavior:auto!important}
}

/* roulang page: category1 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A111E;
  --bg-2:#0E1728;
  --brand:#4A6CF7;
  --brand-2:#7C93FF;
  --glow:#38E1C6;
  --warm:#F0A24B;
  --text-1:#EAF0FF;
  --text-2:#A8B6D4;
  --text-3:#6B7B99;
  --line:rgba(120,150,220,.14);
  --line-strong:rgba(120,150,220,.28);
  --glass:rgba(18,28,48,.62);
  --panel:#0E1728;
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow:0 20px 40px -24px rgba(0,0,0,.75), inset 0 1px 0 rgba(255,255,255,.05);
  --shadow-hover:0 28px 56px -28px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  --ease:cubic-bezier(.2,.7,.3,1);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  padding:0;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
  background:linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    radial-gradient(600px 420px at 12% 6%, rgba(74,108,247,.05), transparent 70%),
    radial-gradient(560px 380px at 88% 42%, rgba(56,225,198,.05), transparent 72%),
    linear-gradient(rgba(120,150,220,.045) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,150,220,.045) 1px, transparent 1px);
  background-size:auto,auto,64px 64px,64px 64px;
}
h1,h2,h3,h4,h5{color:var(--text-1);font-weight:700;margin:0;}
p{margin:0;}
a{color:var(--brand-2);text-decoration:none;transition:color .18s var(--ease),text-underline-offset .18s var(--ease);}
a:hover{color:var(--glow);text-decoration:underline;text-underline-offset:3px;}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:2px solid var(--glow);outline-offset:2px;border-radius:6px;}
img{max-width:100%;display:block;}
ul{margin:0;padding:0;list-style:none;}
.container{max-width:1200px;padding-left:20px;padding-right:20px;margin:0 auto;position:relative;z-index:2;}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px;}}
.page-main{position:relative;z-index:2;}
.section{padding-top:56px;padding-bottom:56px;}
@media (min-width:768px){.section{padding-top:72px;padding-bottom:72px;}}
@media (min-width:992px){.section{padding-top:100px;padding-bottom:100px;}}
.num{font-variant-numeric:tabular-nums;}

/* ---------- 吸顶双层导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:rgba(5,8,15,.82);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav-top{height:64px;display:flex;align-items:center;}
.nav-top-inner{display:flex;align-items:center;gap:20px;width:100%;}
.brand{display:flex;align-items:center;gap:10px;text-decoration:none;flex:0 0 auto;}
.brand:hover{text-decoration:none;}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 10px 24px -12px rgba(74,108,247,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15;}
.brand-text b{font-size:17px;font-weight:800;color:var(--text-1);letter-spacing:-.01em;}
.brand-text span{font-size:12px;color:var(--text-3);letter-spacing:.04em;}
.nav-search{
  flex:1 1 auto;
  max-width:360px;
  min-width:200px;
  display:flex;align-items:center;gap:10px;
  height:40px;padding:0 14px;
  background:var(--glass);
  border:1px solid var(--line);
  border-radius:var(--r-sm);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-search:focus-within{border-color:var(--glow);box-shadow:0 0 0 3px rgba(56,225,198,.16);}
.nav-search i{color:var(--text-3);font-size:13px;}
.nav-search input{
  flex:1;background:transparent;border:0;outline:none;
  color:var(--text-1);font-size:14px;height:100%;
}
.nav-search input::placeholder{color:var(--text-3);}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto;}
.icon-btn{
  display:none;
  width:40px;height:40px;border-radius:var(--r-sm);
  background:var(--glass);border:1px solid var(--line);color:var(--text-2);
  align-items:center;justify-content:center;
  transition:border-color .18s var(--ease),color .18s var(--ease);
}
.icon-btn:hover{border-color:var(--glow);color:var(--text-1);}

.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border:0;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 12px 32px -12px rgba(74,108,247,.9);
  transition:transform .18s var(--ease),box-shadow .18s var(--ease),filter .18s var(--ease);
  white-space:nowrap;text-decoration:none;
}
.btn-glow:hover{
  color:#fff;text-decoration:none;transform:translateY(-2px);
  box-shadow:0 18px 42px -12px rgba(74,108,247,1);
  filter:brightness(1.04);
}
.btn-glow:active{transform:translateY(0);filter:brightness(.96);box-shadow:0 10px 24px -14px rgba(74,108,247,.9);}
.btn-glow.btn-sm{padding:9px 18px;font-size:14px;}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 22px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;color:var(--text-1);
  background:transparent;border:1px solid var(--line-strong);
  transition:border-color .18s var(--ease),background .18s var(--ease),transform .18s var(--ease);
  text-decoration:none;white-space:nowrap;
}
.btn-ghost:hover{
  color:var(--text-1);text-decoration:none;border-color:var(--glow);
  background:rgba(255,255,255,.06);transform:translateY(-2px);
}
.nav-tabs-bar{border-top:1px solid var(--line);}
.tabs-list{
  display:flex;align-items:stretch;gap:8px;
  height:48px;overflow-x:auto;scrollbar-width:none;-ms-overflow-style:none;
}
.tabs-list::-webkit-scrollbar{display:none;}
.tabs-list li{display:flex;flex:0 0 auto;}
.tabs-list a{
  position:relative;display:inline-flex;align-items:center;
  padding:0 14px;height:48px;
  font-size:14px;font-weight:500;color:var(--text-3);
  text-decoration:none;white-space:nowrap;
  transition:color .18s var(--ease);
}
.tabs-list a:hover{color:var(--text-2);text-decoration:none;}
.tabs-list a.active{color:var(--text-1);font-weight:600;}
.tabs-list a.active::after{
  content:"";position:absolute;left:6px;right:6px;bottom:0;height:2px;
  border-radius:2px;background:var(--glow);
  box-shadow:0 0 12px rgba(56,225,198,.7);
}

/* ---------- 面包屑 ---------- */
.crumb{font-size:14px;color:var(--text-3);padding:24px 0;}
.crumb ol{display:flex;flex-wrap:wrap;align-items:center;gap:8px;list-style:none;margin:0;padding:0;}
.crumb li{display:flex;align-items:center;gap:8px;}
.crumb li+li::before{content:"/";color:var(--line-strong);}
.crumb a{color:var(--text-3);}
.crumb a:hover{color:var(--glow);}
.crumb .current{color:var(--text-2);}

/* ---------- 页头 Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  border-bottom:1px solid var(--line);
}
.page-hero-bg{
  position:absolute;inset:0;
  background-image:url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
}
.page-hero-bg::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(140deg,rgba(5,8,15,.88) 0%,rgba(5,8,15,.72) 45%,rgba(10,17,30,.66) 100%);
}
.page-hero-inner{position:relative;z-index:2;padding:56px 0 64px;}
@media (min-width:992px){.page-hero-inner{padding:80px 0 96px;}}
.hero-grid{display:grid;grid-template-columns:1fr;gap:32px;align-items:center;}
@media (min-width:992px){
  .hero-grid{grid-template-columns:7fr 5fr;gap:48px;}
}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 10px;border-radius:999px;
  font-size:12px;font-weight:600;letter-spacing:.02em;
  background:rgba(56,225,198,.10);color:#7FF0DC;border:1px solid rgba(56,225,198,.22);
}
.badge-pill.warm{background:rgba(240,162,75,.12);color:#F6BE7C;border-color:rgba(240,162,75,.24);}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);line-height:1.15;font-weight:800;
  letter-spacing:-.01em;margin:18px 0 16px;
}
.page-hero .lede{font-size:17px;line-height:1.85;color:var(--text-2);max-width:640px;}
@media (min-width:992px){.page-hero .lede{font-size:18px;}}
.hero-cta{display:flex;flex-wrap:wrap;gap:16px;margin-top:28px;}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:20px 32px;margin-top:32px;
  padding-top:24px;border-top:1px solid var(--line);
}
.hero-stats div{font-size:13px;color:var(--text-3);}
.hero-stats b{display:block;font-size:20px;font-weight:800;color:var(--text-1);letter-spacing:-.01em;}
.hero-card{
  background:var(--glass);
  border:1px solid var(--line-strong);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  padding:18px;
}
.hero-card .thumb{
  aspect-ratio:16/10;border-radius:14px;overflow:hidden;background:var(--bg-2);
}
.hero-card .thumb img{width:100%;height:100%;object-fit:cover;}
.hero-card .card-foot{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  margin-top:16px;
}
.hero-card .card-foot p{font-size:14px;color:var(--text-2);line-height:1.7;}

/* ---------- 通用区块标题 ---------- */
.sec-head{max-width:760px;margin-bottom:40px;}
.sec-head .kicker{
  display:inline-block;font-size:13px;font-weight:600;letter-spacing:.08em;
  color:var(--glow);margin-bottom:12px;
}
.sec-head h2{font-size:clamp(24px,3vw,34px);line-height:1.25;margin-bottom:14px;}
.sec-head p{font-size:16px;line-height:1.85;color:var(--text-2);}
.sec-head.center{margin-left:auto;margin-right:auto;text-align:center;}

/* ---------- 时间线 ---------- */
.timeline{position:relative;padding-top:8px;}
.timeline::before{
  content:"";position:absolute;left:23px;top:12px;bottom:40px;width:1px;
  background:linear-gradient(180deg,rgba(56,225,198,.5),rgba(120,150,220,.16) 60%,transparent);
}
.tl-item{position:relative;padding:0 0 40px 72px;}
.tl-item:last-child{padding-bottom:8px;}
.tl-index{
  position:absolute;left:0;top:0;
  width:48px;height:48px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:800;color:var(--glow);
  background:var(--glass);border:1px solid var(--line-strong);
  box-shadow:var(--shadow);
  font-variant-numeric:tabular-nums;
}
.tl-item h3{font-size:20px;line-height:1.45;font-weight:600;margin-bottom:10px;}
.tl-item p{font-size:15px;line-height:1.85;color:var(--text-2);}
.tl-tips{display:flex;flex-wrap:wrap;gap:8px;margin-top:14px;}
.tl-tips li{
  font-size:12px;padding:4px 10px;border-radius:999px;
  background:rgba(120,150,220,.08);border:1px solid var(--line);color:var(--text-3);
}
@media (max-width:575px){
  .tl-item{padding-left:60px;}
  .tl-index{width:40px;height:40px;border-radius:12px;font-size:13px;}
  .timeline::before{left:19px;}
}

/* ---------- 双栏不对称面板 ---------- */
.duo{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:992px){.duo{grid-template-columns:7fr 5fr;gap:32px;}}
.panel{
  border-radius:var(--r-lg);padding:28px;
  background:var(--glass);border:1px solid var(--line);
  box-shadow:var(--shadow);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  transition:transform .22s var(--ease),box-shadow .22s var(--ease),border-color .22s var(--ease);
}
.panel:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(56,225,198,.28);}
.panel.solid{background:var(--panel);border-color:var(--line-strong);}
.panel h3{font-size:19px;font-weight:600;margin-bottom:14px;display:flex;align-items:center;gap:10px;}
.panel h3 i{color:var(--glow);font-size:16px;}
.check-list li{
  position:relative;padding:10px 0 10px 26px;font-size:15px;line-height:1.8;
  border-bottom:1px solid var(--line);
}
.check-list li:last-child{border-bottom:0;padding-bottom:0;}
.check-list li::before{
  content:"";position:absolute;left:0;top:19px;
  width:8px;height:8px;border-radius:3px;
  background:var(--glow);box-shadow:0 0 10px rgba(56,225,198,.6);
}
.panel-media{
  aspect-ratio:16/9;border-radius:var(--r-md);overflow:hidden;margin-bottom:20px;background:var(--bg-2);
}
.panel-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease);}
.panel:hover .panel-media img{transform:scale(1.04);}

/* ---------- 数据带 ---------- */
.stat-band{
  background:var(--panel);
  border:1px solid var(--line-strong);
  border-radius:var(--r-lg);
  padding:32px 24px;
  box-shadow:var(--shadow);
}
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px 16px;}
@media (min-width:992px){.stat-grid{grid-template-columns:repeat(4,1fr);gap:0;}}
.stat-cell{text-align:center;position:relative;}
@media (min-width:992px){
  .stat-cell+.stat-cell::before{
    content:"";position:absolute;left:0;top:8px;bottom:8px;width:1px;background:var(--line);
  }
}
.stat-cell b{
  display:block;font-size:clamp(30px,4vw,46px);font-weight:800;line-height:1.1;
  color:var(--text-1);letter-spacing:-.02em;
  text-shadow:0 0 22px rgba(56,225,198,.35);
  font-variant-numeric:tabular-nums;
}
.stat-cell span{display:block;margin-top:8px;font-size:13px;color:var(--text-3);}

/* ---------- 流程卡（横向小卡） ---------- */
.card-grid{display:grid;grid-template-columns:1fr;gap:24px;}
@media (min-width:768px){.card-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:992px){.card-grid{grid-template-columns:repeat(3,1fr);}}
.mini-card{
  display:flex;flex-direction:column;
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  box-shadow:var(--shadow);overflow:hidden;
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.mini-card:hover{transform:translateY(-4px);border-color:rgba(56,225,198,.28);box-shadow:var(--shadow-hover);}
.mini-card .pic{aspect-ratio:16/9;overflow:hidden;background:var(--bg-2);}
.mini-card .pic img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease);}
.mini-card:hover .pic img{transform:scale(1.04);}
.mini-card .body{padding:20px;display:flex;flex-direction:column;gap:10px;flex:1;}
.mini-card h3{font-size:17px;font-weight:600;line-height:1.45;}
.mini-card p{font-size:15px;line-height:1.8;color:var(--text-2);}

/* ---------- FAQ ---------- */
.faq-grid{display:grid;grid-template-columns:1fr;gap:12px;}
@media (min-width:992px){.faq-grid{grid-template-columns:repeat(2,1fr);gap:16px 24px;}}
.faq-item{
  background:var(--glass);border:1px solid var(--line);border-radius:var(--r-md);
  overflow:hidden;transition:border-color .2s var(--ease);
}
.faq-item.open{border-color:rgba(56,225,198,.3);}
.faq-q{
  width:100%;display:flex;align-items:flex-start;gap:14px;justify-content:space-between;
  padding:18px 20px;background:transparent;border:0;text-align:left;
  font-size:16px;font-weight:600;color:var(--text-1);line-height:1.6;
}
.faq-q .sign{
  flex:0 0 auto;color:var(--glow);font-size:18px;line-height:1;
  transition:transform .2s var(--ease);
}
.faq-item.open .faq-q .sign{transform:rotate(45deg);}
.faq-a{max-height:0;overflow:hidden;transition:max-height .22s var(--ease);}
.faq-item.open .faq-a{max-height:340px;}
.faq-a p{padding:0 20px 18px;font-size:15px;line-height:1.8;color:var(--text-2);}

/* ---------- CTA 通栏 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  border-radius:var(--r-lg);
  padding:48px 28px;
  text-align:center;
  background:var(--glass);
  border:1px solid rgba(56,225,198,.3);
  box-shadow:0 24px 60px -30px rgba(56,225,198,.35), inset 0 1px 0 rgba(255,255,255,.06);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
}
@media (min-width:992px){.cta-band{padding:64px 48px;}}
.cta-band h2{font-size:clamp(24px,3vw,34px);line-height:1.25;margin-bottom:14px;}
.cta-band p{font-size:16px;line-height:1.85;color:var(--text-2);max-width:640px;margin:0 auto;}
.cta-band .btn-glow{margin-top:28px;}
.cta-wrap{padding-top:96px;padding-bottom:96px;}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:40px;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding-top:64px;
  position:relative;z-index:2;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:40px;}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr);}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px;}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px;}
.footer-brand b{font-size:17px;font-weight:800;color:var(--text-1);}
.footer-col p{font-size:14px;line-height:1.8;color:var(--text-3);max-width:320px;}
.footer-col h4{font-size:15px;font-weight:600;color:var(--text-1);margin-bottom:18px;}
.footer-links li{margin-bottom:12px;}
.footer-links a{font-size:14px;color:var(--text-3);}
.footer-links a:hover{color:var(--glow);text-decoration:none;}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;color:var(--text-3);margin-bottom:12px;line-height:1.7;}
.footer-contact i{color:var(--brand-2);margin-top:4px;font-size:13px;}
.footer-social{display:flex;gap:12px;margin-top:20px;}
.footer-social a{
  width:36px;height:36px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  background:var(--glass);border:1px solid var(--line);color:var(--text-3);font-size:14px;
  transition:border-color .18s var(--ease),color .18s var(--ease),transform .18s var(--ease);
}
.footer-social a:hover{border-color:var(--glow);color:var(--glow);text-decoration:none;transform:translateY(-2px);}
.footer-bottom{
  margin-top:48px;padding:20px 0 28px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.to-top{display:inline-flex;align-items:center;gap:6px;color:var(--text-3);font-size:13px;}
.to-top:hover{color:var(--glow);text-decoration:none;}

/* ---------- 移动端 ---------- */
@media (max-width:991px){
  .nav-search{max-width:none;}
}
@media (max-width:767px){
  .nav-search{display:none;}
  .icon-btn{display:inline-flex;}
  .brand-text span{font-size:11px;}
  .page-hero .lede{font-size:16px;}
}
@media (max-width:575px){
  .hero-cta{flex-direction:column;align-items:stretch;}
  .hero-cta .btn-glow,.hero-cta .btn-ghost{width:100%;}
  .panel{padding:22px;}
  .stat-band{padding:26px 18px;}
}

/* roulang page: article */
:root{
  --bg-0:#05080F;
  --bg-1:#0A111E;
  --bg-2:#0E1728;
  --brand:#4A6CF7;
  --brand-2:#7C93FF;
  --glow:#38E1C6;
  --warm:#F0A24B;
  --text-1:#EAF0FF;
  --text-2:#A8B6D4;
  --text-3:#6B7B99;
  --line:rgba(120,150,220,.14);
  --line-strong:rgba(120,150,220,.28);
  --glass:rgba(18,28,48,.62);
  --panel:rgba(14,23,40,.72);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow-1:0 20px 40px -24px rgba(0,0,0,.75), inset 0 1px 0 rgba(255,255,255,.05);
  --shadow-2:0 28px 56px -28px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  --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;
  background:var(--bg-0);
  color:var(--text-2);
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  font-weight:400;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background-image:
    linear-gradient(rgba(120,150,220,.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,150,220,.04) 1px, transparent 1px),
    radial-gradient(760px 480px at 6% 2%, rgba(74,108,247,.12), transparent 70%),
    radial-gradient(820px 520px at 94% 26%, rgba(56,225,198,.07), transparent 72%);
  background-size:64px 64px,64px 64px,auto,auto;
  background-repeat:repeat,repeat,no-repeat,no-repeat;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .18s ease,opacity .18s ease}
a:hover{color:var(--glow)}
button,input{font:inherit;color:inherit}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px;border-radius:6px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(5,8,15,.82);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav-top{position:relative}
.nav-top-inner{display:flex;align-items:center;gap:24px;min-height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:36px;height:36px;border-radius:12px;display:grid;place-items:center;
  font-weight:800;font-size:16px;color:#04121A;
  background:linear-gradient(135deg,var(--glow),var(--brand-2));
  box-shadow:0 10px 24px -14px rgba(56,225,198,.9);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:16px;color:var(--text-1);letter-spacing:.02em}
.brand-text span{font-size:11px;color:var(--text-3);letter-spacing:.14em}
.brand:hover .brand-text b{color:var(--glow)}
.nav-search{
  flex:1 1 auto;max-width:400px;display:flex;align-items:center;gap:10px;
  height:40px;padding:0 14px;border-radius:var(--r-sm);
  background:rgba(18,28,48,.62);border:1px solid var(--line);
  transition:border-color .18s ease,box-shadow .18s ease;
}
.nav-search i{font-size:13px;color:var(--text-3)}
.nav-search input{flex:1 1 auto;min-width:0;background:transparent;border:0;outline:none;font-size:14px;color:var(--text-1)}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search:focus-within{border-color:rgba(56,225,198,.55);box-shadow:0 0 0 3px rgba(56,225,198,.16)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto}
.icon-btn{
  display:none;width:40px;height:40px;border-radius:var(--r-sm);
  background:rgba(18,28,48,.62);border:1px solid var(--line);
  color:var(--text-2);cursor:pointer;transition:color .18s ease,border-color .18s ease;
}
.icon-btn:hover{color:var(--glow);border-color:rgba(56,225,198,.4)}
.nav-tabs-bar{border-top:1px solid var(--line)}
.tabs-list{
  display:flex;align-items:center;gap:8px;list-style:none;
  margin:0;padding:0;height:48px;overflow-x:auto;
  scrollbar-width:none;-ms-overflow-style:none;
}
.tabs-list::-webkit-scrollbar{display:none}
.tabs-list a{
  position:relative;display:inline-flex;align-items:center;height:48px;
  padding:0 12px;font-size:14px;color:var(--text-3);white-space:nowrap;
}
.tabs-list a:hover{color:var(--text-2)}
.tabs-list a.active{color:var(--text-1);font-weight:600}
.tabs-list a.active::after{
  content:"";position:absolute;left:4px;right:4px;bottom:0;height:2px;border-radius:2px;
  background:var(--glow);box-shadow:0 0 12px rgba(56,225,198,.8);
}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 24px;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;border:1px solid transparent;cursor:pointer;
  transition:transform .18s var(--ease),box-shadow .18s ease,border-color .18s ease,
             background-color .18s ease,color .18s ease;
}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-glow{
  color:#FFFFFF;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 12px 32px -12px rgba(74,108,247,.9);
}
.btn-glow:hover{
  color:#FFFFFF;transform:translateY(-2px);
  box-shadow:0 18px 44px -14px rgba(74,108,247,1);
}
.btn-glow:active{transform:translateY(0);box-shadow:0 8px 20px -12px rgba(74,108,247,.85)}
.btn-ghost{background:transparent;border-color:var(--line-strong);color:var(--text-1)}
.btn-ghost:hover{color:var(--text-1);border-color:var(--glow);background:rgba(56,225,198,.08);transform:translateY(-2px)}

/* ---------- 通用玻璃与徽章 ---------- */
.glass{
  position:relative;
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  box-shadow:var(--shadow-1);
}
.badge{
  display:inline-flex;align-items:center;height:26px;padding:0 12px;
  border-radius:var(--r-pill);font-size:12px;font-weight:600;
  background:rgba(56,225,198,.10);border:1px solid rgba(56,225,198,.22);color:#7CF0DC;
}
.badge-warm{background:rgba(240,162,75,.12);border-color:rgba(240,162,75,.24);color:#F5BE86}

/* ---------- 文章头部 ---------- */
.page-hero{
  position:relative;z-index:1;
  padding:40px 0 48px;
  background-image:
    linear-gradient(180deg,rgba(5,8,15,.74),rgba(5,8,15,.94)),
    url('/assets/images/backpic/back-2.webp');
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.crumb{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  list-style:none;margin:0 0 24px;padding:0;font-size:14px;color:var(--text-3);
}
.crumb li{display:flex;align-items:center;gap:8px;min-width:0}
.crumb li+li::before{content:"/";color:var(--line-strong)}
.crumb a{color:var(--text-3)}
.crumb a:hover{color:var(--glow);text-underline-offset:3px}
.crumb .current{color:var(--text-2);max-width:320px;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-head{padding:32px;overflow:hidden}
.article-head h1{
  margin:16px 0 0;
  font-size:clamp(26px,3.4vw,42px);
  line-height:1.22;
  font-weight:800;
  letter-spacing:-.01em;
  color:var(--text-1);
  overflow-wrap:break-word;
  word-break:break-word;
}
.meta-row{display:flex;flex-wrap:wrap;gap:10px 22px;margin-top:22px;font-size:13.5px;color:var(--text-3)}
.meta-item{display:inline-flex;align-items:center;gap:8px}
.meta-item i{color:var(--glow);font-size:13px;opacity:.85}

/* ---------- 正文区 ---------- */
.article-wrap{position:relative;z-index:1;padding:64px 0 32px}
.article-layout{display:grid;grid-template-columns:minmax(0,1fr);gap:48px}
.article-body{width:100%;max-width:820px;margin:0 auto}
.prose{font-size:17px;line-height:1.9;color:var(--text-2)}
.prose>*:first-child{margin-top:0}
.prose p{margin:0 0 1.15em}
.prose h2{
  position:relative;
  margin:2em 0 .7em;
  padding-left:14px;
  font-size:clamp(22px,2.4vw,28px);
  line-height:1.35;
  font-weight:700;
  color:var(--text-1);
  border-left:3px solid var(--glow);
  box-shadow:-8px 0 22px -12px rgba(56,225,198,.9);
}
.prose h3{margin:1.7em 0 .55em;font-size:20px;line-height:1.4;font-weight:600;color:var(--text-1)}
.prose h4{margin:1.4em 0 .5em;font-size:17px;font-weight:600;color:var(--brand-2)}
.prose ul,.prose ol{margin:0 0 1.15em;padding-left:1.35em}
.prose li{margin:6px 0;line-height:1.9}
.prose li::marker{color:var(--glow)}
.prose blockquote{
  margin:1.5em 0;padding:18px 22px;
  background:var(--glass);border:1px solid var(--line);border-left:3px solid var(--brand-2);
  border-radius:var(--r-sm);color:var(--text-2);
}
.prose blockquote p:last-child{margin-bottom:0}
.prose img{border-radius:var(--r-md);margin:1.5em auto;box-shadow:var(--shadow-1)}
.prose figure{margin:1.6em 0}
.prose figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px;line-height:1.7}
.prose a{color:var(--brand-2);border-bottom:1px solid rgba(124,147,255,.35);padding-bottom:1px}
.prose a:hover{color:var(--glow);border-color:rgba(56,225,198,.55)}
.prose hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}
.prose strong{color:var(--text-1);font-weight:600}
.prose code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:.92em;
  background:rgba(56,225,198,.10);border:1px solid rgba(56,225,198,.18);
  border-radius:6px;padding:1px 7px;color:#8FF3E1;
}
.prose pre{
  background:var(--bg-2);border:1px solid var(--line);border-radius:var(--r-md);
  padding:18px 20px;overflow-x:auto;font-size:14px;line-height:1.7;
}
.prose pre code{background:none;border:0;padding:0;color:var(--text-2)}
.prose table{width:100%;border-collapse:collapse;margin:1.6em 0;font-size:15px}
.prose th,.prose td{border:1px solid var(--line);padding:10px 14px;text-align:left}
.prose th{background:rgba(18,28,48,.7);color:var(--text-1);font-weight:600}

.empty-article{
  display:flex;flex-direction:column;align-items:center;justify-content:center;
  gap:16px;text-align:center;min-height:260px;padding:56px 24px;
  border:1px dashed var(--line-strong);border-radius:var(--r-lg);
  background:rgba(14,23,40,.62);
}
.empty-article i{font-size:42px;color:var(--text-3)}
.empty-article p{margin:0;font-size:15px;color:var(--text-2)}

/* ---------- 文章底部导航 ---------- */
.post-nav{display:flex;flex-wrap:wrap;align-items:center;gap:16px;margin-top:48px}
.post-nav-btn{
  flex:1 1 220px;display:flex;flex-direction:column;gap:6px;
  padding:16px 20px;border-radius:var(--r-md);
  background:var(--panel);border:1px solid var(--line);box-shadow:var(--shadow-1);
  transition:transform .2s var(--ease),border-color .2s ease,box-shadow .2s ease;
}
.post-nav-btn .pn-label{font-size:12px;letter-spacing:.08em;color:var(--text-3)}
.post-nav-btn strong{font-size:16px;font-weight:600;color:var(--text-1)}
.post-nav-btn:hover{transform:translateY(-3px);border-color:rgba(56,225,198,.42);box-shadow:var(--shadow-2)}
.post-nav-btn:hover strong{color:var(--glow)}
.post-nav-mid{font-size:14px;color:var(--text-3);padding:0 6px}
.post-nav-mid:hover{color:var(--glow);text-underline-offset:3px;text-decoration:underline}

/* ---------- 侧栏 ---------- */
.article-side{min-width:0}
.side-title{
  margin:0 0 16px;font-size:13px;font-weight:600;
  letter-spacing:.16em;color:var(--text-3);
}
.mini-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.mini-card{
  display:block;padding:16px;border-radius:var(--r-md);
  background:var(--panel);border:1px solid var(--line);
  transition:transform .2s var(--ease),border-color .2s ease,box-shadow .2s ease;
}
.mini-card h3{
  margin:0 0 8px;font-size:15px;font-weight:600;line-height:1.45;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.mini-card span{display:inline-flex;align-items:center;gap:6px;font-size:12px;color:var(--text-3)}
.mini-card:hover{transform:translateY(-3px);border-color:rgba(56,225,198,.38);box-shadow:var(--shadow-2)}
.mini-card:hover h3{color:var(--glow)}
.side-cta{
  margin-top:20px;padding:20px;border-radius:var(--r-md);
  background:linear-gradient(160deg,rgba(74,108,247,.18),rgba(18,28,48,.72));
  border:1px solid var(--line-strong);
}
.side-cta p{margin:0 0 14px;font-size:14px;line-height:1.75;color:var(--text-2)}

/* ---------- 相关推荐 ---------- */
.related-section{position:relative;z-index:1;padding:48px 0 96px}
.section-head{display:flex;flex-wrap:wrap;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:32px}
.section-head h2{
  margin:0;font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;color:var(--text-1);
}
.section-head .more{font-size:14px;color:var(--text-3);display:inline-flex;align-items:center;gap:8px}
.section-head .more:hover{color:var(--glow)}
.related-grid{display:grid;grid-template-columns:1fr;gap:24px}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  border-radius:var(--r-lg);background:var(--panel);border:1px solid var(--line);
  box-shadow:var(--shadow-1);
  transition:transform .22s var(--ease),border-color .22s ease,box-shadow .22s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(56,225,198,.35);box-shadow:var(--shadow-2)}
.card-media{aspect-ratio:16 / 9;overflow:hidden;background:var(--bg-1)}
.card-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease)}
.post-card:hover .card-media img{transform:scale(1.04)}
.card-body{display:flex;flex-direction:column;gap:10px;padding:20px;flex:1 1 auto}
.card-title{
  margin:0;font-size:17px;font-weight:600;line-height:1.45;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.card-excerpt{
  margin:0;font-size:15px;line-height:1.75;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.card-meta{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  margin-top:auto;padding-top:6px;font-size:13px;color:var(--text-3);
}
.card-arrow{display:inline-flex;align-items:center;gap:6px;color:var(--text-3);transition:transform .2s var(--ease),color .2s ease}
.post-card:hover .card-arrow{transform:translateX(4px);color:var(--glow)}

/* ---------- 底部 CTA ---------- */
.cta-band{position:relative;z-index:1;padding:0 0 96px}
.cta-inner{
  text-align:center;padding:56px 32px;border-radius:var(--r-lg);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid rgba(56,225,198,.28);
  box-shadow:0 24px 60px -34px rgba(56,225,198,.55), inset 0 1px 0 rgba(255,255,255,.06);
}
.cta-inner h2{margin:0 0 14px;font-size:clamp(24px,3vw,34px);line-height:1.25;font-weight:700;color:var(--text-1)}
.cta-inner p{margin:0 auto 28px;max-width:620px;font-size:16px;line-height:1.85;color:var(--text-2)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;z-index:1;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding:64px 0 32px;
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:40px}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand b{font-size:17px;color:var(--text-1);letter-spacing:.01em}
.footer-col p{margin:0 0 20px;max-width:330px;font-size:14px;line-height:1.8;color:var(--text-3)}
.footer-col h4{margin:0 0 16px;font-size:15px;font-weight:600;color:var(--text-1)}
.footer-links,.footer-contact{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;font-size:14px;color:var(--text-3)}
.footer-links a{color:var(--text-3)}
.footer-links a:hover{color:var(--glow);text-underline-offset:3px;text-decoration:underline}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;line-height:1.7}
.footer-contact i{margin-top:5px;color:var(--glow);font-size:13px}
.footer-social{display:flex;gap:10px}
.footer-social a{
  width:36px;height:36px;border-radius:var(--r-sm);display:grid;place-items:center;
  background:rgba(18,28,48,.62);border:1px solid var(--line);color:var(--text-3);
  transition:color .18s ease,border-color .18s ease,transform .18s var(--ease);
}
.footer-social a:hover{color:var(--glow);border-color:rgba(56,225,198,.4);transform:translateY(-2px)}
.footer-bottom{
  display:flex;flex-wrap:wrap;align-items:center;justify-content:space-between;gap:16px;
  margin-top:48px;padding-top:24px;border-top:1px solid var(--line);
  font-size:13px;color:var(--text-3);
}
.to-top{display:inline-flex;align-items:center;gap:8px;color:var(--text-3)}
.to-top:hover{color:var(--glow)}

/* ---------- 响应式 ---------- */
@media (min-width:768px){
  .related-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:repeat(2,1fr)}
}
@media (min-width:992px){
  .related-grid{grid-template-columns:repeat(3,1fr)}
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr}
}
@media (min-width:1200px){
  .article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:56px}
  .article-body{margin:0}
  .article-side{position:sticky;top:132px;align-self:start}
}
@media (max-width:1199px){
  .mini-list{flex-direction:row;overflow-x:auto;gap:16px;padding-bottom:8px;scroll-snap-type:x mandatory}
  .mini-card{min-width:264px;flex:0 0 auto;scroll-snap-align:start}
  .side-cta{margin-top:24px}
}
@media (max-width:991px){
  .nav-search{max-width:280px}
  .page-hero{padding:32px 0 40px}
  .article-head{padding:24px}
}
@media (max-width:767px){
  body{font-size:16px;line-height:1.85}
  .container{padding-left:20px;padding-right:20px}
  .nav-top-inner{gap:12px}
  .brand-text span{display:none}
  .brand-text b{font-size:15px}
  .nav-search{
    display:none;position:absolute;left:20px;right:20px;top:64px;max-width:none;z-index:30;
    background:var(--bg-1);box-shadow:var(--shadow-2);
  }
  .nav-search.open{display:flex}
  .icon-btn{display:grid;place-items:center}
  .article-wrap{padding:48px 0 24px}
  .article-head h1{font-size:clamp(24px,6.4vw,30px)}
  .prose{font-size:16px;line-height:1.85}
  .post-nav-btn{flex:1 1 100%}
  .cta-inner{padding:40px 22px}
  .related-section{padding:32px 0 72px}
  .cta-band{padding:0 0 72px}
}

/* roulang page: category2 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A111E;
  --bg-2:#0E1728;
  --brand:#4A6CF7;
  --brand-2:#7C93FF;
  --glow:#38E1C6;
  --warm:#F0A24B;
  --text-1:#EAF0FF;
  --text-2:#A8B6D4;
  --text-3:#6B7B99;
  --line:rgba(120,150,220,.14);
  --line-strong:rgba(120,150,220,.28);
  --glass:rgba(18,28,48,.62);
  --panel:rgba(11,19,34,.92);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --shadow-card:0 20px 40px -24px rgba(0,0,0,.75), inset 0 1px 0 rgba(255,255,255,.05);
  --shadow-hover:0 28px 56px -28px rgba(0,0,0,.85);
  --sp-1:8px;
  --sp-2:12px;
  --sp-3:16px;
  --sp-4:24px;
  --sp-5:32px;
  --sp-6:48px;
  --sp-7:72px;
  --sp-8:96px;
  --ease:cubic-bezier(.2,.7,.3,1);
  --font:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font);
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
  background:linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 58%,var(--bg-0) 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    radial-gradient(700px 430px at 8% 4%, rgba(74,108,247,.11), transparent 70%),
    radial-gradient(620px 420px at 92% 72%, rgba(56,225,198,.07), transparent 72%);
}
body::after{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  opacity:.05;
  background-image:
    linear-gradient(rgba(140,170,230,.7) 1px, transparent 1px),
    linear-gradient(90deg, rgba(140,170,230,.7) 1px, transparent 1px);
  background-size:72px 72px;
}
img{max-width:100%;display:block}
a{color:var(--text-2);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--glow)}
h1,h2,h3,h4{color:var(--text-1);margin:0;font-weight:700}
p{margin:0}
ul{margin:0;padding:0;list-style:none}
button{font-family:inherit}
:focus-visible{outline:2px solid var(--glow);outline-offset:2px}

.container{
  width:100%;
  max-width:1200px;
  margin:0 auto;
  padding-left:32px;
  padding-right:32px;
}

/* ---------- 导航 ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1030;
  background:rgba(5,8,15,.82);
  backdrop-filter:blur(16px) saturate(140%);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid transparent;
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease);
}
.site-header.scrolled{
  border-bottom-color:var(--line);
  box-shadow:0 18px 40px -32px rgba(0,0,0,.9);
}
.nav-top{height:64px}
.nav-top-inner{
  height:64px;
  display:flex;
  align-items:center;
  gap:var(--sp-4);
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  flex:0 0 auto;
  color:var(--text-1);
}
.brand:hover{color:var(--text-1)}
.brand-mark{
  width:34px;
  height:34px;
  border-radius:10px;
  display:grid;
  place-items:center;
  font-size:16px;
  font-weight:800;
  color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 10px 24px -12px rgba(74,108,247,.95);
}
.brand-text{display:flex;flex-direction:column;line-height:1.1}
.brand-text b{font-size:16px;font-weight:800;letter-spacing:.01em}
.brand-text span{font-size:11px;color:var(--text-3);letter-spacing:.06em}

.nav-search{
  position:relative;
  flex:1 1 auto;
  max-width:420px;
  display:flex;
  align-items:center;
}
.nav-search i{
  position:absolute;
  left:14px;
  font-size:13px;
  color:var(--text-3);
  pointer-events:none;
}
.nav-search input{
  width:100%;
  height:40px;
  padding:0 14px 0 38px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:rgba(18,28,48,.5);
  color:var(--text-1);
  font-size:14px;
  transition:border-color .18s var(--ease), box-shadow .18s var(--ease), background .18s var(--ease);
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{
  outline:none;
  border-color:var(--glow);
  background:rgba(18,28,48,.78);
  box-shadow:0 0 0 3px rgba(56,225,198,.16);
}
.nav-actions{
  margin-left:auto;
  display:flex;
  align-items:center;
  gap:var(--sp-2);
  flex:0 0 auto;
}
.icon-btn{
  display:none;
  width:40px;
  height:40px;
  border-radius:var(--r-sm);
  border:1px solid var(--line);
  background:rgba(18,28,48,.5);
  color:var(--text-2);
  align-items:center;
  justify-content:center;
  transition:border-color .18s var(--ease), color .18s var(--ease);
}
.icon-btn:hover{border-color:var(--glow);color:var(--glow)}

.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  border-radius:var(--r-sm);
  font-size:15px;
  font-weight:600;
  padding:12px 22px;
  border:1px solid transparent;
  cursor:pointer;
  transition:transform .18s var(--ease), box-shadow .18s var(--ease), border-color .18s var(--ease), background .18s var(--ease), color .18s var(--ease);
}
.btn-sm{padding:9px 18px;font-size:14px}
.btn-glow{
  color:#fff;
  background:linear-gradient(135deg,#4A6CF7,#7C93FF);
  box-shadow:0 12px 32px -12px rgba(74,108,247,.9);
}
.btn-glow:hover{
  color:#fff;
  transform:translateY(-2px);
  box-shadow:0 16px 42px -12px rgba(74,108,247,1);
}
.btn-glow:active{transform:translateY(0);box-shadow:0 8px 22px -14px rgba(74,108,247,.85)}
.btn-line{
  color:var(--text-1);
  background:transparent;
  border-color:var(--line-strong);
}
.btn-line:hover{
  color:var(--text-1);
  border-color:var(--glow);
  background:rgba(56,225,198,.06);
  transform:translateY(-2px);
}
.btn-line:active{transform:translateY(0)}

.nav-tabs-bar{
  height:48px;
  border-top:1px solid var(--line);
  background:rgba(5,8,15,.4);
}
.nav-tabs-bar .container{height:48px;display:flex;align-items:center}
.tabs-list{
  display:flex;
  align-items:center;
  gap:var(--sp-5);
  height:48px;
  overflow-x:auto;
  scrollbar-width:none;
  width:100%;
}
.tabs-list::-webkit-scrollbar{display:none}
.tabs-list a{
  position:relative;
  display:inline-flex;
  align-items:center;
  height:48px;
  font-size:14px;
  color:var(--text-3);
  white-space:nowrap;
  transition:color .18s var(--ease);
}
.tabs-list a::after{
  content:"";
  position:absolute;
  left:50%;
  bottom:6px;
  width:0;
  height:2px;
  border-radius:2px;
  background:var(--glow);
  transform:translateX(-50%);
  transition:width .2s var(--ease);
}
.tabs-list a:hover{color:var(--text-2)}
.tabs-list a.active{color:var(--text-1);font-weight:600}
.tabs-list a.active::after{width:calc(100% + 16px)}

/* ---------- 通用区块 ---------- */
main{position:relative;z-index:1}
section{padding:var(--sp-8) 0}
.sec-head{max-width:760px;margin-bottom:var(--sp-6)}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:12px;
  letter-spacing:.06em;
  color:var(--glow);
  background:rgba(56,225,198,.10);
  border:1px solid rgba(56,225,198,.22);
  border-radius:999px;
  padding:4px 12px;
  margin-bottom:var(--sp-3);
}
h2{font-size:clamp(24px,3vw,34px);line-height:1.25}
h3{font-size:20px;line-height:1.4;font-weight:600}
.sec-head p{margin-top:var(--sp-3);font-size:16px}

/* ---------- 页头 ---------- */
.page-hero{
  position:relative;
  padding:0;
  background-image:linear-gradient(180deg, rgba(5,8,15,.72), rgba(5,8,15,.94)), url("/assets/images/backpic/back-2.webp");
  background-size:cover;
  background-position:center;
  border-bottom:1px solid var(--line);
}
.page-hero-inner{
  padding:var(--sp-4) 0 var(--sp-7);
  min-height:clamp(360px,52vh,520px);
  display:flex;
  flex-direction:column;
  justify-content:center;
}
.breadcrumb-nav{
  font-size:14px;
  color:var(--text-3);
  margin:var(--sp-4) 0 var(--sp-6);
  display:flex;
  align-items:center;
  gap:8px;
  flex-wrap:wrap;
}
.breadcrumb-nav a{color:var(--text-3)}
.breadcrumb-nav a:hover{color:var(--glow)}
.breadcrumb-nav .sep{color:rgba(120,150,220,.4)}
.breadcrumb-nav .current{color:var(--text-2)}
.page-hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.15;
  font-weight:800;
  letter-spacing:-.01em;
  margin-bottom:var(--sp-3);
}
.hero-lead{
  max-width:700px;
  font-size:18px;
  line-height:1.75;
  color:var(--text-2);
  margin-bottom:var(--sp-5);
}
.hero-actions{display:flex;flex-wrap:wrap;gap:var(--sp-3);margin-bottom:var(--sp-5)}
.hero-facts{
  display:flex;
  flex-wrap:wrap;
  gap:var(--sp-5);
  font-size:13px;
  color:var(--text-3);
}
.hero-facts li{display:flex;align-items:center;gap:8px}
.hero-facts li i{color:var(--glow);font-size:12px}
.hero-facts b{color:var(--text-1);font-variant-numeric:tabular-nums;font-weight:700}

/* ---------- 场景卡 2x2 ---------- */
.scene-grid{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:var(--sp-4);
}
.scene-card{
  border-radius:var(--r-lg);
  border:1px solid var(--line);
  padding:var(--sp-5);
  display:flex;
  flex-direction:column;
  gap:var(--sp-4);
  transition:transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
}
.scene-card.glass{
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
}
.scene-card.solid{
  background:linear-gradient(180deg,rgba(14,23,40,.95),rgba(9,15,27,.95));
  box-shadow:var(--shadow-card);
}
.scene-card:hover{
  transform:translateY(-4px);
  border-color:rgba(56,225,198,.35);
  box-shadow:var(--shadow-hover);
}
.scene-top{display:flex;align-items:flex-start;gap:var(--sp-3)}
.scene-ico{
  flex:0 0 auto;
  width:44px;
  height:44px;
  border-radius:14px;
  display:grid;
  place-items:center;
  font-size:17px;
  color:var(--glow);
  background:rgba(56,225,198,.10);
  border:1px solid rgba(56,225,198,.22);
}
.scene-card h3{margin-bottom:6px}
.scene-card p{font-size:15px;line-height:1.8}
.scene-media{
  border-radius:var(--r-md);
  overflow:hidden;
  aspect-ratio:16/9;
  border:1px solid var(--line);
  background:var(--bg-2);
}
.scene-media img{width:100%;height:100%;object-fit:cover;transition:transform .22s var(--ease)}
.scene-card:hover .scene-media img{transform:scale(1.04)}
.tag-row{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  display:inline-flex;
  align-items:center;
  gap:6px;
  font-size:12px;
  padding:4px 10px;
  border-radius:999px;
  color:var(--glow);
  background:rgba(56,225,198,.10);
  border:1px solid rgba(56,225,198,.22);
}
.tag.warm{
  color:var(--warm);
  background:rgba(240,162,75,.12);
  border-color:rgba(240,162,75,.22);
}

/* ---------- 对比栅格 ---------- */
.compare-wrap{
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:rgba(10,17,30,.6);
  padding:var(--sp-4);
  overflow:hidden;
}
.compare-grid{
  display:grid;
  grid-template-columns:1.1fr 1fr 1.25fr 1fr;
}
.compare-row{display:contents}
.compare-cell{
  padding:var(--sp-3) var(--sp-4);
  font-size:14.5px;
  line-height:1.7;
  border-bottom:1px solid var(--line);
  display:flex;
  align-items:center;
}
.compare-row:last-child .compare-cell{border-bottom:none}
.compare-head{
  font-size:13px;
  letter-spacing:.04em;
  color:var(--text-3);
  font-weight:600;
  background:rgba(18,28,48,.55);
  border-bottom:1px solid var(--line-strong);
}
.compare-head:first-child{border-radius:var(--r-sm) 0 0 var(--r-sm)}
.compare-head:last-child{border-radius:0 var(--r-sm) var(--r-sm) 0}
.compare-key{color:var(--text-1);font-weight:600}
.compare-note{
  margin-top:var(--sp-4);
  font-size:13px;
  color:var(--text-3);
  display:flex;
  align-items:center;
  gap:8px;
}
.compare-note i{color:var(--warm)}

/* ---------- 组合建议 ---------- */
.combo-list{
  display:flex;
  flex-direction:column;
  gap:var(--sp-3);
}
.combo-item{
  display:grid;
  grid-template-columns:64px 1fr auto;
  align-items:center;
  gap:var(--sp-4);
  padding:var(--sp-4) var(--sp-5);
  border:1px solid var(--line);
  border-radius:var(--r-lg);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  box-shadow:var(--shadow-card);
  transition:transform .22s var(--ease), border-color .22s var(--ease), box-shadow .22s var(--ease);
}
.combo-item:hover{
  transform:translateY(-4px);
  border-color:rgba(56,225,198,.35);
  box-shadow:var(--shadow-hover);
}
.combo-num{
  width:48px;
  height:48px;
  border-radius:14px;
  display:grid;
  place-items:center;
  font-size:18px;
  font-weight:800;
  color:var(--text-1);
  background:rgba(74,108,247,.16);
  border:1px solid rgba(124,147,255,.28);
  font-variant-numeric:tabular-nums;
}
.combo-item h3{font-size:17px;margin-bottom:4px}
.combo-item p{font-size:14.5px;line-height:1.75}
.combo-item .arrow{
  color:var(--text-3);
  font-size:14px;
  transition:transform .22s var(--ease), color .22s var(--ease);
}
.combo-item:hover .arrow{transform:translateX(4px);color:var(--glow)}

/* ---------- 数据带 ---------- */
.stats-band{
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
  background:rgba(10,17,30,.5);
  padding:var(--sp-7) 0;
}
.stats-grid{
  display:grid;
  grid-template-columns:repeat(4,minmax(0,1fr));
}
.stat-item{
  padding:0 var(--sp-4);
  border-left:1px solid var(--line);
}
.stat-item:first-child{border-left:none;padding-left:0}
.stat-item b{
  display:block;
  font-size:clamp(30px,4vw,52px);
  font-weight:800;
  line-height:1.1;
  color:var(--text-1);
  font-variant-numeric:tabular-nums;
  text-shadow:0 0 26px rgba(56,225,198,.35);
}
.stat-item span{
  display:block;
  margin-top:10px;
  font-size:14px;
  color:var(--text-3);
}

/* ---------- FAQ ---------- */
.faq-list{
  display:grid;
  grid-template-columns:repeat(2,minmax(0,1fr));
  gap:var(--sp-2);
}
.faq-item{
  border:1px solid var(--line);
  border-radius:var(--r-md);
  background:var(--glass);
  backdrop-filter:blur(14px) saturate(140%);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  overflow:hidden;
  transition:border-color .2s var(--ease);
}
.faq-item.open{border-color:rgba(56,225,198,.32)}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-3);
  padding:var(--sp-3) var(--sp-4);
  background:transparent;
  border:none;
  text-align:left;
  font-size:16px;
  font-weight:600;
  color:var(--text-1);
  cursor:pointer;
}
.faq-icon{
  position:relative;
  flex:0 0 auto;
  width:16px;
  height:16px;
  transition:transform .2s var(--ease);
}
.faq-icon::before,
.faq-icon::after{
  content:"";
  position:absolute;
  background:var(--glow);
  border-radius:2px;
}
.faq-icon::before{left:0;top:7px;width:16px;height:2px}
.faq-icon::after{left:7px;top:0;width:2px;height:16px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .24s var(--ease);
}
.faq-item.open .faq-a{max-height:360px}
.faq-a p{
  padding:0 var(--sp-4) var(--sp-4);
  font-size:15px;
  line-height:1.8;
  color:var(--text-2);
}

/* ---------- CTA ---------- */
.cta-band{padding:var(--sp-8) 0}
.cta-panel{
  position:relative;
  border-radius:var(--r-lg);
  border:1px solid rgba(56,225,198,.30);
  background:
    linear-gradient(180deg, rgba(18,28,48,.78), rgba(10,17,30,.86)),
    url("/assets/images/backpic/back-3.webp");
  background-size:cover;
  background-position:center;
  padding:var(--sp-8) var(--sp-5);
  text-align:center;
  box-shadow:0 0 0 1px rgba(56,225,198,.10), var(--shadow-card);
  overflow:hidden;
}
.cta-panel h2{margin-bottom:var(--sp-3)}
.cta-panel p{
  max-width:620px;
  margin:0 auto var(--sp-5);
  font-size:16px;
}
.cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:var(--sp-3)}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;
  z-index:1;
  background:var(--bg-0);
  border-top:1px solid var(--line);
  padding-top:var(--sp-7);
  margin-top:var(--sp-6);
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.2fr;
  gap:var(--sp-6);
  padding-bottom:var(--sp-6);
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  margin-bottom:var(--sp-3);
}
.footer-brand b{color:var(--text-1);font-size:16px;font-weight:800}
.footer-col p{font-size:14px;line-height:1.8;color:var(--text-3)}
.footer-col h4{
  font-size:15px;
  margin-bottom:var(--sp-3);
  color:var(--text-1);
}
.footer-links li{margin-bottom:10px}
.footer-links a,.footer-contact span{font-size:14px;color:var(--text-3)}
.footer-links a:hover{color:var(--glow)}
.footer-contact li{
  display:flex;
  align-items:flex-start;
  gap:10px;
  margin-bottom:10px;
}
.footer-contact i{color:var(--glow);font-size:13px;margin-top:6px}
.footer-social{display:flex;gap:10px;margin-top:var(--sp-4)}
.footer-social a{
  width:36px;
  height:36px;
  border-radius:10px;
  display:grid;
  place-items:center;
  border:1px solid var(--line);
  color:var(--text-3);
  transition:border-color .18s var(--ease), color .18s var(--ease), transform .18s var(--ease);
}
.footer-social a:hover{
  color:var(--glow);
  border-color:rgba(56,225,198,.35);
  transform:translateY(-2px);
}
.footer-bottom{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:var(--sp-3);
  padding:var(--sp-4) 0 var(--sp-5);
  border-top:1px solid var(--line);
  font-size:13px;
  color:var(--text-3);
  flex-wrap:wrap;
}
.to-top{display:inline-flex;align-items:center;gap:8px;font-size:13px;color:var(--text-3)}
.to-top:hover{color:var(--glow)}

/* ---------- 响应式 ---------- */
@media (max-width:1199.98px){
  .footer-grid{grid-template-columns:1.4fr 1fr 1fr;gap:var(--sp-5)}
}
@media (max-width:991.98px){
  section{padding:var(--sp-7) 0}
  .nav-search{max-width:280px}
  .scene-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,minmax(0,1fr));row-gap:var(--sp-5)}
  .stat-item:nth-child(3){border-left:none;padding-left:0}
  .faq-list{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr 1fr;gap:var(--sp-6) var(--sp-5)}
}
@media (max-width:767.98px){
  .container{padding-left:20px;padding-right:20px}
  section{padding:56px 0}
  .nav-search{display:none}
  .nav-search.is-open{
    display:flex;
    position:absolute;
    left:20px;
    right:20px;
    top:72px;
    max-width:none;
    z-index:5;
    background:rgba(5,8,15,.96);
    border:1px solid var(--line);
    border-radius:var(--r-sm);
    padding:6px;
  }
  .icon-btn{display:inline-flex}
  .nav-tabs-bar,.nav-tabs-bar .container{height:48px}
  .tabs-list{gap:var(--sp-4)}
  .nav-tabs-bar .container{position:relative}
  .nav-tabs-bar .container::after{
    content:"";
    position:absolute;
    right:0;
    top:0;
    width:32px;
    height:48px;
    pointer-events:none;
    background:linear-gradient(90deg, rgba(5,8,15,0), rgba(5,8,15,.95));
  }
  .compare-wrap{padding:var(--sp-3);background:transparent;border:none}
  .compare-grid{display:block}
  .compare-row-head{display:none}
  .compare-row{
    display:block;
    border:1px solid var(--line);
    border-radius:var(--r-md);
    background:var(--glass);
    backdrop-filter:blur(14px) saturate(140%);
    -webkit-backdrop-filter:blur(14px) saturate(140%);
    box-shadow:var(--shadow-card);
    padding:var(--sp-3) var(--sp-4);
    margin-bottom:var(--sp-3);
  }
  .compare-row:last-child{margin-bottom:0}
  .compare-cell{
    display:block;
    padding:6px 0;
    border-bottom:none;
  }
  .compare-cell::before{
    content:attr(data-label);
    display:block;
    font-size:12px;
    color:var(--text-3);
    margin-bottom:2px;
  }
  .compare-key{border-bottom:1px solid var(--line);margin-bottom:8px;padding-bottom:8px}
  .compare-key::before{display:none}
  .combo-item{
    grid-template-columns:48px 1fr;
    padding:var(--sp-4);
  }
  .combo-item .arrow{display:none}
  .combo-num{width:40px;height:40px;font-size:16px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;align-items:flex-start}
  .cta-panel{padding:var(--sp-7) var(--sp-4)}
}
@media (max-width:575.98px){
  .brand-text span{display:none}
  .hero-lead{font-size:16px}
  .stats-grid{grid-template-columns:1fr}
  .stat-item{border-left:none;padding:0 0 var(--sp-3);border-bottom:1px solid var(--line)}
  .stat-item:last-child{border-bottom:none;padding-bottom:0}
  .hero-actions .btn{width:100%}
}

/* roulang page: category3 */
:root{
  --bg-0:#05080F;
  --bg-1:#0A111E;
  --bg-2:#0E1728;
  --brand:#4A6CF7;
  --brand-2:#7C93FF;
  --glow:#38E1C6;
  --warm:#F0A24B;
  --text-1:#EAF0FF;
  --text-2:#A8B6D4;
  --text-3:#6B7B99;
  --line:rgba(120,150,220,.14);
  --line-strong:rgba(120,150,220,.28);
  --glass:rgba(18,28,48,.62);
  --r-lg:20px;
  --r-md:16px;
  --r-sm:12px;
  --r-pill:999px;
  --shadow:0 20px 40px -24px rgba(0,0,0,.75), inset 0 1px 0 rgba(255,255,255,.05);
  --shadow-hover:0 28px 56px -28px rgba(0,0,0,.85), inset 0 1px 0 rgba(255,255,255,.06);
  --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;
  font-family:system-ui,-apple-system,"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",sans-serif;
  font-size:16px;
  line-height:1.85;
  color:var(--text-2);
  background:linear-gradient(180deg,var(--bg-0) 0%,var(--bg-1) 100%);
  background-attachment:fixed;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
body::before{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background-image:linear-gradient(rgba(120,150,220,.05) 1px,transparent 1px),
                   linear-gradient(90deg,rgba(120,150,220,.05) 1px,transparent 1px);
  background-size:64px 64px;
}
body::after{
  content:"";position:fixed;inset:0;z-index:0;pointer-events:none;
  background:radial-gradient(520px 380px at 84% 10%,rgba(56,225,198,.06),transparent 70%),
             radial-gradient(620px 420px at 10% 76%,rgba(74,108,247,.06),transparent 70%);
}
img{max-width:100%;height:auto;display:block}
a{color:var(--text-1);text-decoration:none;transition:color .18s var(--ease)}
a:hover{color:var(--glow)}
button{font-family:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;color:var(--text-1);font-weight:700;line-height:1.3}
p{margin:0}
.visually-hidden{position:absolute!important;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0 0 0 0);white-space:nowrap;border:0}
[id]{scroll-margin-top:140px}
::selection{background:rgba(56,225,198,.28);color:#fff}

.container{
  width:100%;max-width:1200px!important;margin:0 auto;padding-left:20px;padding-right:20px;
}
@media (min-width:768px){.container{padding-left:32px;padding-right:32px}}

/* ============ 导航 ============ */
.site-header{
  position:sticky;top:0;z-index:1000;
  background:rgba(5,8,15,.82);
  -webkit-backdrop-filter:blur(16px) saturate(140%);
  backdrop-filter:blur(16px) saturate(140%);
  border-bottom:1px solid var(--line);
}
.nav-top-inner{display:flex;align-items:center;gap:24px;height:64px}
.brand{display:flex;align-items:center;gap:10px;flex:0 0 auto}
.brand-mark{
  width:38px;height:38px;flex:0 0 38px;border-radius:12px;display:grid;place-items:center;
  font-size:16px;font-weight:800;color:#fff;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 10px 24px -12px rgba(74,108,247,.95), inset 0 1px 0 rgba(255,255,255,.25);
}
.brand-text{display:flex;flex-direction:column;line-height:1.15}
.brand-text b{font-size:16px;font-weight:700;color:var(--text-1);letter-spacing:.02em}
.brand-text span{font-size:12px;color:var(--text-3);letter-spacing:.04em}
.nav-search{position:relative;flex:1 1 auto;max-width:360px;min-width:240px}
.nav-search i{position:absolute;left:14px;top:50%;transform:translateY(-50%);font-size:13px;color:var(--text-3);pointer-events:none}
.nav-search input{
  width:100%;height:42px;padding:0 14px 0 38px;font-size:14px;color:var(--text-1);
  background:var(--glass);border:1px solid var(--line-strong);border-radius:var(--r-sm);
  outline:none;transition:border-color .18s var(--ease),box-shadow .18s var(--ease);
}
.nav-search input::placeholder{color:var(--text-3)}
.nav-search input:focus{border-color:var(--glow);box-shadow:0 0 0 3px rgba(56,225,198,.18)}
.nav-actions{display:flex;align-items:center;gap:12px;margin-left:auto;flex:0 0 auto}
.icon-btn{
  display:none;width:40px;height:40px;border-radius:var(--r-sm);
  align-items:center;justify-content:center;color:var(--text-2);
  background:var(--glass);border:1px solid var(--line-strong);
  transition:color .18s var(--ease),border-color .18s var(--ease);
}
.icon-btn:hover{color:var(--glow);border-color:var(--glow)}
.btn-glow{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:14px 26px;border:0;border-radius:var(--r-sm);
  font-size:15px;font-weight:600;color:#fff;white-space:nowrap;
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  box-shadow:0 12px 32px -12px rgba(74,108,247,.9);
  transition:transform .2s var(--ease),box-shadow .2s var(--ease),color .2s var(--ease);
}
.btn-glow:hover{color:#fff;transform:translateY(-2px);box-shadow:0 20px 42px -14px rgba(74,108,247,1)}
.btn-glow:active{transform:translateY(0);box-shadow:0 8px 20px -12px rgba(74,108,247,.8)}
.btn-glow:focus-visible{outline:2px solid var(--glow);outline-offset:2px}
.btn-ghost{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:13px 24px;border-radius:var(--r-sm);font-size:15px;font-weight:600;
  color:var(--text-1);background:transparent;border:1px solid var(--line-strong);
  transition:border-color .2s var(--ease),background .2s var(--ease),color .2s var(--ease),transform .2s var(--ease);
}
.btn-ghost:hover{color:var(--text-1);border-color:var(--glow);background:rgba(56,225,198,.07);transform:translateY(-2px)}
.btn-ghost:focus-visible{outline:2px solid var(--glow);outline-offset:2px}
.btn-sm{padding:10px 18px!important;font-size:14px!important}
.nav-tabs-bar{border-top:1px solid rgba(120,150,220,.08)}
.tabs-list{
  display:flex;align-items:center;gap:8px;height:48px;
  overflow-x:auto;overflow-y:hidden;scrollbar-width:none;-ms-overflow-style:none;
}
.tabs-list::-webkit-scrollbar{display:none}
.tabs-list a{
  position:relative;display:inline-flex;align-items:center;height:48px;padding:0 14px;
  font-size:14px;color:var(--text-3);white-space:nowrap;
  transition:color .18s var(--ease);
}
.tabs-list a:hover{color:var(--text-2)}
.tabs-list a.active{color:var(--text-1)}
.tabs-list a.active::after{
  content:"";position:absolute;left:10px;right:10px;bottom:7px;height:2px;border-radius:2px;
  background:var(--glow);box-shadow:0 0 10px rgba(56,225,198,.75);
}
@media (max-width:767px){
  .nav-search{display:none}
  .icon-btn{display:inline-flex}
  .nav-top-inner{gap:12px}
}

/* ============ 通用板块 ============ */
main{position:relative;z-index:1}
.section{padding:56px 0}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:992px){.section{padding:96px 0}}
.section-tight{padding:48px 0}
@media (min-width:992px){.section-tight{padding:72px 0}}
.glass-panel{
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line);border-radius:var(--r-lg);box-shadow:var(--shadow);
}
.section-head{max-width:720px;margin-bottom:36px}
.section-head h2{font-size:clamp(24px,3vw,34px);font-weight:700;margin-bottom:12px}
.section-head p{font-size:16px;color:var(--text-2)}
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;padding:4px 10px;border-radius:var(--r-pill);
  font-size:12px;font-weight:600;letter-spacing:.02em;
  color:#8DF3E0;background:rgba(56,225,198,.10);border:1px solid rgba(56,225,198,.22);
}
.badge-warm{color:#F7C286;background:rgba(240,162,75,.12);border-color:rgba(240,162,75,.24)}

/* ============ 面包屑 ============ */
.breadcrumb-nav{font-size:14px;color:var(--text-3);display:flex;flex-wrap:wrap;align-items:center;gap:6px;margin-bottom:18px}
.breadcrumb-nav a{color:var(--text-3)}
.breadcrumb-nav a:hover{color:var(--glow);text-decoration:underline;text-underline-offset:3px}
.breadcrumb-nav i{font-size:10px;opacity:.65}
.breadcrumb-nav .current{color:var(--text-2)}

/* ============ 页头 ============ */
.page-hero{
  position:relative;overflow:hidden;
  display:flex;align-items:center;
  min-height:clamp(380px,50vh,520px);
  padding:56px 0;
  background-image:linear-gradient(rgba(5,8,15,.70),rgba(5,8,15,.78)),url("/assets/images/backpic/back-2.webp");
  background-size:cover;background-position:center;
  border-bottom:1px solid var(--line);
}
@media (min-width:992px){.page-hero{padding:72px 0}}
.hero-inner{display:grid;grid-template-columns:1fr;gap:40px;align-items:center}
@media (min-width:992px){.hero-inner{grid-template-columns:1.12fr .88fr;gap:48px}}
.hero-copy h1{
  font-size:clamp(30px,4.4vw,52px);font-weight:800;line-height:1.15;letter-spacing:-.01em;
  margin-bottom:16px;text-shadow:0 8px 30px rgba(0,0,0,.55);
}
.hero-copy .lead{font-size:18px;line-height:1.75;color:var(--text-2);max-width:560px;margin-bottom:28px}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px;margin-bottom:28px}
.hero-stats{display:flex;flex-wrap:wrap;gap:28px;font-size:13px;color:var(--text-3)}
.hero-stats b{
  display:block;font-size:22px;font-weight:800;color:var(--text-1);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
}
.hero-media{padding:16px;border-radius:var(--r-lg)}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover;border-radius:14px}
.hero-media p{margin-top:14px;font-size:14px;color:var(--text-2)}
@media (max-width:991px){.hero-media p{font-size:13px}}

/* ============ 帮助主体：目录 + 分组问答 ============ */
.support-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:992px){.support-layout{grid-template-columns:260px 1fr;gap:48px}}
.toc{padding:24px;border-radius:var(--r-lg);height:max-content}
@media (min-width:992px){.toc{position:sticky;top:136px}}
.toc h2{font-size:16px;font-weight:600;margin-bottom:16px}
.toc ul{display:flex;flex-wrap:wrap;gap:8px}
@media (min-width:992px){.toc ul{flex-direction:column;gap:4px}}
.toc a{
  display:block;padding:10px 12px;border-radius:var(--r-sm);font-size:14px;color:var(--text-2);
  transition:background .18s var(--ease),color .18s var(--ease);
}
.toc a:hover{background:rgba(56,225,198,.08);color:var(--glow)}
.toc .toc-note{margin-top:18px;font-size:13px;color:var(--text-3);line-height:1.7}

.faq-group + .faq-group{margin-top:48px}
.faq-group h2{font-size:clamp(22px,2.4vw,28px);margin-bottom:10px}
.group-lead{font-size:15px;color:var(--text-3);margin-bottom:20px;max-width:660px}

.accordion-item{
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid var(--line)!important;border-radius:var(--r-md)!important;
  margin-bottom:12px;overflow:hidden;box-shadow:var(--shadow);
  transition:border-color .2s var(--ease),box-shadow .2s var(--ease);
}
.accordion-item:hover{border-color:var(--line-strong)!important}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:rgba(56,225,198,.3)!important}
.accordion-button{
  display:flex;align-items:center;gap:12px;
  padding:18px 20px!important;
  font-size:16px;font-weight:600;line-height:1.5;color:var(--text-1);
  background:transparent!important;box-shadow:none!important;border-radius:0!important;
}
.accordion-button:not(.collapsed){background:rgba(56,225,198,.05)!important;color:var(--text-1)!important}
.accordion-button:hover{color:var(--glow)}
.accordion-button:focus{box-shadow:none!important;outline:2px solid var(--glow);outline-offset:-2px;border-radius:var(--r-md)}
.accordion-button::after{display:none!important}
.accordion-button .plus{
  margin-left:auto;font-size:20px;font-weight:400;line-height:1;color:var(--text-3);
  transition:transform .2s var(--ease),color .2s var(--ease);
}
.accordion-button:not(.collapsed) .plus{transform:rotate(45deg);color:var(--glow)}
.accordion-body{
  padding:0 20px 20px!important;font-size:15px;line-height:1.8;color:var(--text-2);
  border-top:1px solid rgba(120,150,220,.10);padding-top:14px!important;
}

/* ============ 数据带 ============ */
.stat-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:16px;margin-top:32px}
@media (min-width:992px){.stat-grid{grid-template-columns:repeat(4,1fr);gap:24px}}
.stat-card{
  padding:24px;border-radius:var(--r-md);background:var(--bg-2);
  border:1px solid var(--line);box-shadow:var(--shadow);
  transition:transform .22s var(--ease),border-color .22s var(--ease),box-shadow .22s var(--ease);
}
.stat-card:hover{transform:translateY(-4px);border-color:rgba(56,225,198,.32);box-shadow:var(--shadow-hover)}
.stat-card b{
  display:block;font-size:clamp(26px,3vw,40px);font-weight:800;color:var(--text-1);
  font-variant-numeric:tabular-nums;letter-spacing:-.01em;
  text-shadow:0 0 18px rgba(56,225,198,.35);
}
.stat-card span{display:block;margin-top:6px;font-size:13px;color:var(--text-3)}

/* ============ 联系表单 ============ */
.contact-layout{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:992px){.contact-layout{grid-template-columns:1.08fr .92fr;gap:48px;align-items:start}}
.form-panel{padding:28px;border-radius:var(--r-lg)}
@media (min-width:768px){.form-panel{padding:32px}}
.form-row{margin-bottom:20px}
.form-label{display:block;font-size:14px;color:var(--text-2);margin-bottom:8px;font-weight:500}
.form-control{
  width:100%;min-height:48px;padding:12px 14px;font-size:15px;font-family:inherit;line-height:1.6;
  color:var(--text-1);background:rgba(14,23,40,.72);
  border:1px solid var(--line-strong);border-radius:var(--r-sm);
  transition:border-color .18s var(--ease),box-shadow .18s var(--ease),background .18s var(--ease);
}
.form-control::placeholder{color:var(--text-3)}
.form-control:focus{
  color:var(--text-1);background:rgba(14,23,40,.92);
  border-color:var(--glow);box-shadow:0 0 0 3px rgba(56,225,198,.18);outline:none;
}
textarea.form-control{min-height:132px;resize:vertical}
.form-hint{font-size:13px;color:var(--text-3);margin-top:10px;line-height:1.7}
.form-actions{margin-top:24px}
.support-side{padding:28px;border-radius:var(--r-lg)}
.support-side img{width:100%;aspect-ratio:16/9;object-fit:cover;border-radius:14px;margin-bottom:20px}
.support-side h3{font-size:18px;margin-bottom:12px}
.support-list li{
  display:flex;gap:12px;padding:12px 0;border-top:1px solid var(--line);
  font-size:15px;color:var(--text-2);
}
.support-list li:first-child{border-top:0;padding-top:0}
.support-list i{color:var(--glow);font-size:14px;margin-top:6px;flex:0 0 auto}
.support-list b{color:var(--text-1);font-weight:600}

/* ============ CTA ============ */
.cta-wrap{padding:8px 0 0}
.cta-band{
  position:relative;text-align:center;padding:48px 28px;border-radius:var(--r-lg);
  background:var(--glass);
  -webkit-backdrop-filter:blur(14px) saturate(140%);
  backdrop-filter:blur(14px) saturate(140%);
  border:1px solid rgba(56,225,198,.28);
  box-shadow:0 0 70px -34px rgba(56,225,198,.75), var(--shadow);
}
@media (min-width:768px){.cta-band{padding:64px 48px}}
.cta-band h2{font-size:clamp(24px,3vw,34px);margin-bottom:14px}
.cta-band p{max-width:620px;margin:0 auto 28px;font-size:16px;color:var(--text-2)}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px;justify-content:center}

/* ============ 页脚 ============ */
.site-footer{
  position:relative;z-index:1;margin-top:96px;padding-top:64px;
  background:var(--bg-0);border-top:1px solid var(--line);
}
.footer-grid{display:grid;grid-template-columns:1fr;gap:40px}
@media (min-width:768px){.footer-grid{grid-template-columns:repeat(2,1fr)}}
@media (min-width:992px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:32px}}
.footer-brand{display:flex;align-items:center;gap:10px;margin-bottom:16px}
.footer-brand b{font-size:16px;color:var(--text-1)}
.footer-col p{font-size:14px;color:var(--text-3);line-height:1.8;max-width:320px}
.footer-col h4{font-size:15px;font-weight:600;color:var(--text-1);margin-bottom:16px}
.footer-links li{margin-bottom:10px}
.footer-links a,.footer-contact span{font-size:14px;color:var(--text-3)}
.footer-links a:hover{color:var(--glow);text-decoration:underline;text-underline-offset:3px}
.footer-contact li{display:flex;gap:10px;margin-bottom:12px;font-size:14px;color:var(--text-3)}
.footer-contact i{margin-top:5px;color:var(--glow);font-size:13px}
.footer-social{display:flex;gap:10px;margin-top:18px}
.footer-social a{
  width:38px;height:38px;display:grid;place-items:center;border-radius:var(--r-sm);
  color:var(--text-3);background:rgba(14,23,40,.8);border:1px solid var(--line);
  transition:color .18s var(--ease),border-color .18s var(--ease),transform .18s var(--ease);
}
.footer-social a:hover{color:var(--glow);border-color:rgba(56,225,198,.35);transform:translateY(-2px)}
.footer-bottom{
  margin-top:48px;padding:22px 0 28px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;align-items:center;justify-content:space-between;
  font-size:13px;color:var(--text-3);
}
.to-top{font-size:13px;color:var(--text-3);display:inline-flex;align-items:center;gap:8px}
.to-top:hover{color:var(--glow)}
.to-top i{font-size:11px}

@media (max-width:575px){
  .hero-stats{gap:20px}
  .hero-actions{gap:12px}
  .btn-glow,.btn-ghost{width:100%}
  .cta-actions{flex-direction:column}
}