/* roulang page: index */
:root{
  --brand:#4FE3C1;
  --brand-d:#2FB7A0;
  --brand-2:#39B9D8;
  --nebula:#8C6BFF;
  --gold:#F2C879;
  --bg:#06070F;
  --panel:#0C0E1C;
  --raise:#141834;
  --line:rgba(255,255,255,.08);
  --line-2:rgba(255,255,255,.16);
  --text:#E9EDFB;
  --text-2:#A7AFCE;
  --text-3:#6C7595;
  --danger:#FF7A70;
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --sh-card:0 8px 24px rgba(3,5,14,.45);
  --sh-glass:inset 0 1px 0 rgba(255,255,255,.06);
  --glow:0 0 0 1px rgba(79,227,193,.35), 0 10px 30px -8px rgba(79,227,193,.5);
  --ease:cubic-bezier(.22,.61,.36,1);
}

*{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg);
  color:var(--text);
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  font-size:16px;
  line-height:1.8;
  font-weight:400;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
input,textarea,select{font:inherit}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4,p{margin:0}
::selection{background:rgba(79,227,193,.28);color:#fff}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;border-radius:6px}
.num{font-variant-numeric:tabular-nums;font-family:Inter,system-ui,-apple-system,sans-serif}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
@media (min-width:768px){.container-x{padding:0 32px}}
@media (min-width:1024px){.container-x{padding:0 40px}}
@media (min-width:1440px){.container-x{max-width:1280px}}

.section{padding:56px 0;position:relative}
@media (min-width:768px){.section{padding:72px 0}}
@media (min-width:1024px){.section{padding:96px 0}}
.section-tight{padding:40px 0}
@media (min-width:1024px){.section-tight{padding:56px 0}}

/* ================= 星点与渐变背景 ================= */
.star-field{position:relative;overflow:hidden}
.star-field::after{
  content:"";
  position:absolute;inset:0;
  pointer-events:none;
  opacity:.7;
  background-image:
    radial-gradient(1.6px 1.6px at 8% 16%, rgba(255,255,255,.55), transparent 100%),
    radial-gradient(1.3px 1.3px at 19% 58%, rgba(255,255,255,.35), transparent 100%),
    radial-gradient(1.5px 1.5px at 27% 24%, rgba(255,255,255,.4), transparent 100%),
    radial-gradient(1.2px 1.2px at 38% 76%, rgba(255,255,255,.3), transparent 100%),
    radial-gradient(1.6px 1.6px at 46% 12%, rgba(255,255,255,.42), transparent 100%),
    radial-gradient(1.2px 1.2px at 55% 48%, rgba(255,255,255,.3), transparent 100%),
    radial-gradient(1.5px 1.5px at 63% 82%, rgba(255,255,255,.36), transparent 100%),
    radial-gradient(1.3px 1.3px at 71% 30%, rgba(255,255,255,.4), transparent 100%),
    radial-gradient(1.6px 1.6px at 79% 64%, rgba(255,255,255,.34), transparent 100%),
    radial-gradient(1.2px 1.2px at 86% 20%, rgba(255,255,255,.3), transparent 100%),
    radial-gradient(1.4px 1.4px at 92% 54%, rgba(255,255,255,.36), transparent 100%),
    radial-gradient(1.2px 1.2px at 14% 88%, rgba(255,255,255,.28), transparent 100%);
}
.star-field > *{position:relative;z-index:1}

/* ================= 顶部导航 ================= */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  transition:background .3s var(--ease), box-shadow .3s var(--ease), border-color .3s var(--ease);
  border-bottom:1px solid transparent;
}
.site-header.scrolled{
  background:rgba(6,7,15,.9);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px rgba(3,5,14,.55);
}
.nav-bar{
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  height:72px;
  transition:height .3s var(--ease);
}
.site-header.scrolled .nav-bar{height:60px}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg, rgba(79,227,193,.22), rgba(140,107,255,.22));
  border:1px solid rgba(79,227,193,.35);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
}
.brand-text{font-size:17px;font-weight:600;letter-spacing:.01em;white-space:nowrap}
.nav-links{display:none;align-items:center;gap:4px}
@media (min-width:1024px){.nav-links{display:flex}}
.nav-link{
  position:relative;display:inline-block;
  padding:8px 12px;border-radius:8px;
  font-size:14.5px;color:var(--text-2);
  transition:color .2s var(--ease), background .2s var(--ease);
  white-space:nowrap;
}
.nav-link:hover{color:var(--text);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:var(--text)}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--nebula));
}
.nav-actions{display:flex;align-items:center;gap:10px;flex-shrink:0}
.icon-btn{
  width:38px;height:38px;border-radius:10px;
  display:flex;align-items:center;justify-content:center;
  color:var(--text-2);border:1px solid transparent;
  transition:all .2s var(--ease);
}
.icon-btn:hover{color:var(--brand);background:rgba(79,227,193,.1);border-color:rgba(79,227,193,.28)}
.menu-toggle{display:flex}
@media (min-width:1024px){.menu-toggle{display:none}}

.mobile-drawer{
  position:fixed;inset:0;z-index:70;
  background:rgba(6,7,15,.94);
  -webkit-backdrop-filter:blur(20px) saturate(150%);
  backdrop-filter:blur(20px) saturate(150%);
  display:flex;flex-direction:column;
  padding:88px 24px 32px;
  transform:translateY(-12px);
  opacity:0;visibility:hidden;
  transition:opacity .28s var(--ease), transform .28s var(--ease), visibility .28s;
}
.mobile-drawer.open{opacity:1;visibility:visible;transform:translateY(0)}
.mobile-drawer .m-link{
  display:block;font-size:20px;padding:14px 4px;
  border-bottom:1px solid var(--line);color:var(--text-2);
}
.mobile-drawer .m-link.is-active{color:var(--brand)}
.mobile-drawer .m-cta{margin-top:auto;padding-top:24px}

/* ================= 按钮 ================= */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--r-btn);
  font-size:15px;font-weight:600;line-height:1.4;
  border:1px solid transparent;
  transition:transform .22s var(--ease), box-shadow .22s var(--ease), background .22s var(--ease), color .22s var(--ease), filter .22s var(--ease);
  white-space:nowrap;cursor:pointer;
}
.btn-sm{padding:9px 16px;font-size:14px}
.btn-primary{
  background:linear-gradient(135deg,var(--brand),var(--brand-2));
  color:#04140F;
  box-shadow:var(--glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(79,227,193,.5), 0 18px 40px -10px rgba(79,227,193,.62)}
.btn-primary:active{transform:translateY(0)}
.btn-outline{
  background:transparent;color:var(--brand);
  border-color:rgba(79,227,193,.5);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.04);
}
.btn-outline:hover{background:rgba(79,227,193,.12);transform:translateY(-2px)}
.btn-outline:active{transform:translateY(0)}
.btn-ghost{
  padding:8px 2px;color:var(--text-2);border:0;
  border-bottom:1px solid rgba(167,175,206,.35);border-radius:0;
}
.btn-ghost:hover{color:var(--brand);border-bottom-color:var(--brand)}
.btn[disabled],.btn.is-disabled{opacity:.45;box-shadow:none;pointer-events:none}

/* ================= 徽章 / 标签 ================= */
.badge-pill{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;
  font-size:13px;font-weight:500;
  background:rgba(79,227,193,.12);color:var(--brand);
  border:1px solid rgba(79,227,193,.2);
}
.badge-gold{
  background:var(--gold);color:#241a05;border-color:var(--gold);font-weight:600;
}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{
  padding:4px 11px;border-radius:999px;font-size:13px;
  color:var(--text-2);background:rgba(255,255,255,.04);
  border:1px solid var(--line);
}

/* ================= 卡片 ================= */
.card-panel{
  background:var(--panel);
  border:1px solid var(--line);
  border-radius:var(--r-card);
  box-shadow:var(--sh-card), inset 0 1px 0 rgba(255,255,255,.04);
  transition:transform .3s var(--ease), border-color .3s var(--ease), box-shadow .3s var(--ease);
}
.card-hover:hover{
  transform:translateY(-4px);
  border-color:rgba(79,227,193,.4);
  box-shadow:0 16px 40px rgba(3,5,14,.6), inset 0 1px 0 rgba(255,255,255,.06);
}
.glass{
  background:rgba(12,14,28,.62);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  border:1px solid var(--line);
  box-shadow:var(--sh-card), var(--sh-glass);
}
.img-frame{
  border-radius:var(--r-img);
  border:1px solid var(--line);
  overflow:hidden;
}
.img-frame img{width:100%;height:100%;object-fit:cover;transition:transform .5s var(--ease)}
.card-hover:hover .img-frame img{transform:scale(1.03)}

/* ================= 板块标题 ================= */
.sec-head{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;flex-wrap:wrap;
  margin-bottom:36px;
}
@media (min-width:1024px){.sec-head{margin-bottom:48px}}
.sec-title{
  position:relative;padding-left:16px;
  font-size:clamp(24px,3vw,34px);
  font-weight:600;line-height:1.3;letter-spacing:-.01em;
}
.sec-title::before{
  content:"";position:absolute;left:0;top:.2em;bottom:.2em;width:3px;border-radius:3px;
  background:linear-gradient(180deg,var(--brand),var(--nebula));
}
.sec-desc{margin-top:10px;padding-left:16px;font-size:15px;color:var(--text-2);max-width:620px}
.sec-more{
  font-size:14px;color:var(--text-3);
  border-bottom:1px solid transparent;
  transition:color .2s var(--ease), border-color .2s var(--ease);
}
.sec-more:hover{color:var(--brand);border-bottom-color:var(--brand)}

/* ================= Hero ================= */
.hero{
  position:relative;
  padding-top:120px;padding-bottom:56px;
  background:radial-gradient(120% 110% at 18% 0%, #12142E 0%, #06070F 62%);
}
@media (min-width:1024px){.hero{padding-top:150px;padding-bottom:88px;min-height:72vh}}
.hero-grid{display:grid;gap:40px;align-items:center}
@media (min-width:1024px){.hero-grid{grid-template-columns:1.02fr .98fr;gap:56px}}
.hero h1{
  font-size:clamp(30px,4.4vw,52px);
  line-height:1.16;letter-spacing:-.01em;font-weight:600;
  margin:20px 0 18px;
}
.hero-sub{font-size:17px;color:var(--text-2);max-width:560px}
@media (min-width:1024px){.hero-sub{font-size:19px}}
.hero-cta{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:0 0;margin-top:38px;
  border-top:1px solid var(--line);padding-top:22px;
}
.hero-stats li{
  padding:0 22px;border-left:1px solid var(--line);
  display:flex;flex-direction:column;gap:2px;
}
.hero-stats li:first-child{padding-left:0;border-left:0}
.hero-stats strong{font-size:19px;font-weight:600;color:var(--text);font-variant-numeric:tabular-nums}
.hero-stats span{font-size:13px;color:var(--text-3)}
@media (max-width:520px){
  .hero-stats li{padding:0 14px}
  .hero-stats strong{font-size:17px}
}

.hero-panel{border-radius:var(--r-card);padding:14px}
.hero-media{
  border-radius:var(--r-img);overflow:hidden;
  border:1px solid rgba(79,227,193,.35);
  box-shadow:0 0 0 1px rgba(255,255,255,.06), 0 18px 50px -20px rgba(79,227,193,.35);
}
.hero-media img{width:100%;aspect-ratio:16/10;object-fit:cover}
.hero-rows{margin-top:14px;display:grid;gap:2px}
.hero-rows li{
  display:flex;align-items:center;justify-content:space-between;gap:12px;
  padding:10px 12px;border-radius:10px;
  background:rgba(255,255,255,.03);
  font-size:14px;
}
.hero-rows li span{color:var(--text-2)}
.hero-rows li strong{color:var(--brand);font-size:14.5px;font-weight:600}

/* ================= 功能 bento ================= */
.bento-main{padding:28px}
@media (min-width:1024px){.bento-main{padding:36px}}
.bento-icon{
  width:52px;height:52px;border-radius:14px;
  display:flex;align-items:center;justify-content:center;
  background:linear-gradient(135deg, rgba(79,227,193,.16), rgba(140,107,255,.16));
  border:1px solid rgba(79,227,193,.28);
  color:var(--brand);
}
.bento-title{font-size:22px;font-weight:600;margin:20px 0 10px}
.bento-text{font-size:15.5px;color:var(--text-2)}
.mini-card{padding:22px}
.mini-card h3{font-size:17px;font-weight:600;margin:16px 0 8px}
.mini-card p{font-size:14.5px;color:var(--text-2)}
.mini-icon{
  width:40px;height:40px;border-radius:11px;
  display:flex;align-items:center;justify-content:center;
  color:var(--brand);
  background:rgba(79,227,193,.1);
  border:1px solid rgba(79,227,193,.22);
}

/* ================= 使用场景 ================= */
.scene-row{display:grid;gap:28px;align-items:center;padding:36px 0;border-top:1px solid var(--line)}
.scene-row:first-child{border-top:0;padding-top:0}
@media (min-width:1024px){
  .scene-row{grid-template-columns:1fr 1fr;gap:56px;padding:48px 0}
  .scene-row.reverse .scene-media{order:-1}
}
.scene-index{
  font-size:44px;font-weight:600;line-height:1;
  color:rgba(167,175,206,.24);
  font-variant-numeric:tabular-nums;
}
.scene-row h3{font-size:clamp(20px,2.4vw,24px);font-weight:600;margin:14px 0 12px}
.scene-row p{color:var(--text-2);font-size:15.5px}
.scene-points{margin-top:18px;display:grid;gap:10px}
.scene-points li{position:relative;padding-left:18px;font-size:15px;color:var(--text-2)}
.scene-points li::before{
  content:"";position:absolute;left:0;top:.72em;
  width:6px;height:6px;border-radius:50%;
  background:var(--brand);box-shadow:0 0 0 3px rgba(79,227,193,.14);
}
.scene-link{display:inline-block;margin-top:20px;font-size:14.5px;color:var(--brand);border-bottom:1px solid rgba(79,227,193,.35)}
.scene-link:hover{border-bottom-color:var(--brand)}
.scene-media{border-radius:var(--r-card);overflow:hidden;border:1px solid var(--line);box-shadow:var(--sh-card)}
.scene-media img{width:100%;aspect-ratio:4/3;object-fit:cover;transition:transform .5s var(--ease)}
.scene-media:hover img{transform:scale(1.03)}

/* ================= 案例 ================= */
.case-main{padding:28px}
@media (min-width:1024px){.case-main{padding:36px}}
.case-quote{font-size:17px;line-height:1.85;color:var(--text);margin:18px 0}
.case-metric{font-size:32px;font-weight:600;color:var(--gold);font-variant-numeric:tabular-nums;line-height:1.2}
.case-metric-label{font-size:13.5px;color:var(--text-3);margin-top:4px}
.case-small{padding:22px}
.case-small h3{font-size:17px;font-weight:600;margin:14px 0 8px}
.case-small p{font-size:14.5px;color:var(--text-2)}
.logo-strip{
  display:grid;grid-template-columns:repeat(2,1fr);gap:1px;
  border:1px solid var(--line);border-radius:var(--r-card);
  overflow:hidden;background:var(--line);
  margin-top:36px;
}
@media (min-width:768px){.logo-strip{grid-template-columns:repeat(4,1fr)}}
.logo-cell{
  background:var(--panel);
  padding:24px 18px;text-align:center;
  font-size:15px;color:var(--text-3);
  filter:grayscale(1);
  transition:filter .3s var(--ease), color .3s var(--ease);
}
.logo-cell:hover{filter:grayscale(0);color:var(--text-2)}

/* ================= 价格 ================= */
.price-card{padding:28px;display:flex;flex-direction:column}
.price-card.featured{
  background:rgba(12,14,28,.72);
  -webkit-backdrop-filter:blur(16px) saturate(150%);
  backdrop-filter:blur(16px) saturate(150%);
  border-color:rgba(79,227,193,.45);
  box-shadow:0 0 0 1px rgba(79,227,193,.28), 0 26px 60px -22px rgba(79,227,193,.45), var(--sh-glass);
}
@media (min-width:1024px){.price-card.featured{transform:translateY(-8px)}}
.price-name{font-size:17px;font-weight:600}
.price-amount{display:flex;align-items:baseline;gap:6px;margin:16px 0 6px}
.price-amount b{font-size:38px;font-weight:600;line-height:1;font-variant-numeric:tabular-nums}
.price-amount em{font-style:normal;font-size:14px;color:var(--text-3)}
.price-note{font-size:14.5px;color:var(--text-2);min-height:44px}
.price-list{margin:20px 0 24px;display:grid;gap:11px;flex:1}
.price-list li{display:flex;gap:10px;font-size:14.5px;color:var(--text-2)}
.price-list li svg{flex-shrink:0;margin-top:6px}
.price-list li.off{color:var(--text-3)}
.compare-wrap{overflow-x:auto;margin-top:44px;border:1px solid var(--line);border-radius:var(--r-card)}
.compare-table{width:100%;min-width:640px;border-collapse:collapse;font-size:14.5px}
.compare-table th,.compare-table td{padding:14px 18px;text-align:left;border-bottom:1px solid var(--line)}
.compare-table thead th{background:var(--raise);color:var(--text);font-weight:600}
.compare-table tbody tr:nth-child(odd){background:rgba(255,255,255,.03)}
.compare-table td:not(:first-child){text-align:center;color:var(--text-2)}
.compare-table td.hl{color:var(--brand)}

/* ================= 内容列表（CMS） ================= */
.post-feature{display:block;overflow:hidden;padding:0}
.post-feature .post-cover{overflow:hidden;border-bottom:1px solid var(--line)}
.post-feature .post-cover img{width:100%;aspect-ratio:16/9;object-fit:cover;transition:transform .5s var(--ease)}
.post-feature:hover .post-cover img{transform:scale(1.03)}
.post-feature .post-body{padding:24px 26px 28px}
.post-feature h3{font-size:21px;font-weight:600;line-height:1.45;margin:14px 0 10px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-feature p{font-size:15px;color:var(--text-2);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-meta{display:flex;align-items:center;gap:10px;font-size:13.5px;color:var(--text-3);margin-top:16px}
.post-meta .dot{width:3px;height:3px;border-radius:50%;background:var(--text-3)}
.post-list{display:flex;flex-direction:column;gap:16px}
.post-row{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 22px}
.post-row h3{font-size:16px;font-weight:600;line-height:1.5;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.post-row .post-meta{margin-top:8px}
.post-arrow{color:var(--text-3);flex-shrink:0;transition:transform .25s var(--ease), color .25s var(--ease)}
.post-row:hover .post-arrow{color:var(--brand);transform:translateX(4px)}
.empty-state{
  display:flex;flex-direction:column;align-items:center;justify-content:center;gap:14px;
  padding:56px 24px;text-align:center;
  border:1px dashed var(--line-2);border-radius:var(--r-card);
  background:rgba(255,255,255,.02);
}
.empty-state p{font-size:15px;color:var(--text-3)}

/* ================= FAQ ================= */
.faq-list{display:grid;gap:12px}
.faq-item{
  border:1px solid var(--line);border-radius:var(--r-card);
  background:var(--panel);
  transition:border-color .25s var(--ease), background .25s var(--ease);
}
.faq-item[open]{border-color:rgba(79,227,193,.38);background:rgba(20,24,52,.6)}
.faq-item summary{
  list-style:none;cursor:pointer;
  display:flex;align-items:center;justify-content:space-between;gap:16px;
  padding:18px 22px;font-size:17px;font-weight:600;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-plus{
  flex-shrink:0;width:22px;height:22px;position:relative;
  transition:transform .28s var(--ease), color .28s var(--ease);
  color:var(--brand);
}
.faq-plus::before,.faq-plus::after{
  content:"";position:absolute;left:50%;top:50%;background:currentColor;border-radius:2px;
}
.faq-plus::before{width:14px;height:1.6px;transform:translate(-50%,-50%)}
.faq-plus::after{width:1.6px;height:14px;transform:translate(-50%,-50%)}
.faq-item[open] .faq-plus{transform:rotate(45deg)}
.faq-body{padding:0 22px 20px;font-size:15px;color:var(--text-2)}

/* ================= CTA 带 ================= */
.cta-band{
  background:radial-gradient(90% 140% at 50% 0%, #12142E 0%, #06070F 70%);
  border-top:1px solid var(--line);border-bottom:1px solid var(--line);
}
.cta-inner{
  display:flex;flex-direction:column;align-items:flex-start;gap:24px;
  padding:56px 0;
}
@media (min-width:1024px){
  .cta-inner{flex-direction:row;align-items:center;justify-content:space-between;padding:72px 0}
}
.cta-inner h2{font-size:clamp(24px,3vw,34px);font-weight:600;line-height:1.3}
.cta-inner p{color:var(--text-2);margin-top:10px;font-size:15.5px}
.cta-actions{display:flex;flex-wrap:wrap;gap:14px}

/* ================= 页脚 ================= */
.site-footer{background:#04050C;border-top:1px solid var(--line);padding-top:56px}
.footer-grid{display:grid;gap:32px}
@media (min-width:768px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}}
.footer-brand p{font-size:14.5px;color:var(--text-3);margin-top:14px;max-width:320px}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{display:grid;gap:10px}
.footer-col a{font-size:14.5px;color:var(--text-3);transition:color .2s var(--ease)}
.footer-col a:hover{color:var(--brand)}
.footer-bottom{
  margin-top:44px;padding:22px 0;
  border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center;
  font-size:13.5px;color:var(--text-3);
}

/* ================= 表单 ================= */
.field{display:grid;gap:8px}
.field label{font-size:13px;color:var(--text-3)}
.field input,.field textarea{
  width:100%;padding:12px 14px;border-radius:var(--r-btn);
  background:rgba(255,255,255,.04);
  border:1px solid var(--line);color:var(--text);
  transition:border-color .2s var(--ease), box-shadow .2s var(--ease), background .2s var(--ease);
}
.field input::placeholder,.field textarea::placeholder{color:var(--text-3)}
.field input:focus,.field textarea:focus{
  outline:none;border-color:var(--brand);
  box-shadow:0 0 0 3px rgba(79,227,193,.18);
  background:rgba(255,255,255,.06);
}

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

/* roulang page: category1 */
:root{
  --bg:#06070F;
  --panel:#0C0E1C;
  --panel-2:#141834;
  --brand:#4FE3C1;
  --brand-deep:#2FB7A0;
  --violet:#8C6BFF;
  --gold:#F2C879;
  --text-1:#E9EDFB;
  --text-2:#A7AFCE;
  --text-3:#6C7595;
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(255,255,255,.14);
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-card:0 8px 24px rgba(3,5,14,.45);
  --shadow-glow:0 0 0 1px rgba(79,227,193,.35),0 10px 30px -8px rgba(79,227,193,.5);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  --font-num:Inter,system-ui,"PingFang SC","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;scroll-padding-top:150px;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;transition:color .22s ease,border-color .22s ease,background .22s ease,opacity .22s ease;}
button,input,textarea{font-family:inherit;font-size:inherit;color:inherit;}
ul,ol{margin:0;padding:0;list-style:none;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em;line-height:1.2;}
p{margin:0;}
:focus-visible{outline:2px solid var(--brand);outline-offset:3px;box-shadow:0 0 0 3px rgba(79,227,193,.25);border-radius:6px;}

.container-x{width:100%;max-width:1200px;margin:0 auto;padding:0 40px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}

/* ---------- 品牌 ---------- */
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  width:32px;height:32px;flex:0 0 32px;border-radius:10px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(79,227,193,.12);
  border:1px solid rgba(79,227,193,.28);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.brand-text{font-size:17px;font-weight:600;letter-spacing:.01em;color:var(--text-1);}

/* ---------- 顶部导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:80;
  background:rgba(6,7,15,.42);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:background .28s ease,border-color .28s ease,box-shadow .28s ease,height .28s ease;
}
.site-header.is-scrolled{
  background:rgba(6,7,15,.92);
  border-bottom-color:var(--border);
  box-shadow:0 10px 30px rgba(3,5,14,.55);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:72px;transition:height .28s ease;}
.site-header.is-scrolled .header-inner{height:60px;}
.nav-links{display:flex;align-items:center;gap:4px;}
.nav-link{
  position:relative;padding:9px 12px;font-size:15px;color:var(--text-2);border-radius:8px;
}
.nav-link::after{
  content:"";position:absolute;left:12px;right:12px;bottom:0;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--brand),var(--violet));
  transform:scaleX(0);transform-origin:left;transition:transform .26s ease;
}
.nav-link:hover{color:var(--text-1);}
.nav-link:hover::after{transform:scaleX(1);opacity:.55;}
.nav-link.is-active{color:var(--text-1);}
.nav-link.is-active::after{transform:scaleX(1);}
.header-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:38px;height:38px;display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;border:1px solid var(--border);color:var(--text-2);background:transparent;
  transition:border-color .22s ease,color .22s ease,background .22s ease;
}
.icon-btn:hover{border-color:rgba(79,227,193,.5);color:var(--brand);background:rgba(79,227,193,.1);}
.menu-toggle{display:none;width:38px;height:38px;align-items:center;justify-content:center;border-radius:10px;border:1px solid var(--border);background:transparent;color:var(--text-2);cursor:pointer;}
.mobile-drawer{display:none;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;line-height:1;
  border:1px solid transparent;cursor:pointer;
  transition:transform .22s ease,box-shadow .22s ease,background .22s ease,filter .22s ease,border-color .22s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#4FE3C1,#39B9D8);
  color:#04201A;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(79,227,193,.45),0 16px 36px -10px rgba(79,227,193,.6);}
.btn-primary:active{transform:translateY(0);}
.btn-ghost{
  background:transparent;color:var(--brand);border-color:rgba(79,227,193,.5);
}
.btn-ghost:hover{background:rgba(79,227,193,.12);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-disabled{opacity:.45;box-shadow:none;pointer-events:none;}

.link-underline{
  display:inline-flex;align-items:center;gap:6px;color:var(--brand);font-size:15px;
  border-bottom:1px solid rgba(79,227,193,.35);padding-bottom:2px;
}
.link-underline:hover{border-bottom-color:var(--brand);}

/* ---------- 标签 / 徽章 ---------- */
.tag{
  display:inline-flex;align-items:center;gap:6px;
  padding:6px 14px;border-radius:999px;
  background:rgba(79,227,193,.12);color:var(--brand);
  font-size:14px;line-height:1.4;
}
.tag-violet{background:rgba(140,107,255,.14);color:#B9A6FF;}
.tag-gold{background:var(--gold);color:#3A2A08;}
.chip{
  display:inline-flex;align-items:center;
  padding:6px 12px;border-radius:999px;
  border:1px solid var(--border);color:var(--text-2);font-size:13.5px;
}

/* ---------- 面包屑 ---------- */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:22px;flex-wrap:wrap;}
.breadcrumb a{color:var(--text-3);}
.breadcrumb a:hover{color:var(--brand);}
.breadcrumb .current{color:var(--text-2);}

/* ---------- 星点装饰 ---------- */
.hero-stars{
  position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:
    radial-gradient(1.5px 1.5px at 8% 18%,rgba(255,255,255,.75),transparent 60%),
    radial-gradient(1px 1px at 21% 62%,rgba(255,255,255,.45),transparent 60%),
    radial-gradient(1.5px 1.5px at 34% 26%,rgba(255,255,255,.6),transparent 60%),
    radial-gradient(1px 1px at 47% 74%,rgba(255,255,255,.4),transparent 60%),
    radial-gradient(1.5px 1.5px at 58% 14%,rgba(255,255,255,.65),transparent 60%),
    radial-gradient(1px 1px at 66% 52%,rgba(255,255,255,.42),transparent 60%),
    radial-gradient(1.5px 1.5px at 77% 30%,rgba(255,255,255,.58),transparent 60%),
    radial-gradient(1px 1px at 86% 68%,rgba(255,255,255,.4),transparent 60%),
    radial-gradient(1.5px 1.5px at 93% 22%,rgba(255,255,255,.62),transparent 60%),
    radial-gradient(1px 1px at 14% 86%,rgba(255,255,255,.36),transparent 60%),
    radial-gradient(1px 1px at 41% 46%,rgba(255,255,255,.3),transparent 60%),
    radial-gradient(1.5px 1.5px at 72% 84%,rgba(255,255,255,.5),transparent 60%);
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:158px 0 84px;
  background:
    linear-gradient(180deg,rgba(6,7,15,.72),rgba(6,7,15,.94)),
    radial-gradient(900px 460px at 16% -10%,#12142E 0%,#06070F 72%),
    url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center;position:relative;z-index:2;}
.page-hero h1{
  font-size:52px;line-height:1.15;margin:18px 0 20px;letter-spacing:-.015em;
}
.page-hero h1 em{font-style:normal;color:var(--brand);}
.hero-sub{color:var(--text-2);font-size:18px;max-width:560px;line-height:1.85;}
.hero-actions{display:flex;align-items:center;gap:14px;margin-top:30px;flex-wrap:wrap;}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;border-radius:var(--radius-img);
  border:1px solid rgba(79,227,193,.35);
  box-shadow:0 0 0 1px rgba(255,255,255,.06),0 24px 60px -20px rgba(79,227,193,.35);
  aspect-ratio:16/10;object-fit:cover;
}
.hero-badges{display:flex;gap:10px;margin-top:26px;flex-wrap:wrap;}

/* ---------- 锚点导航条 ---------- */
.anchor-bar{
  position:sticky;top:72px;z-index:50;
  background:rgba(12,14,28,.88);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-top:1px solid var(--border);
  border-bottom:1px solid var(--border);
}
.anchor-list{display:flex;gap:10px;padding:14px 0;overflow-x:auto;scrollbar-width:none;}
.anchor-list::-webkit-scrollbar{display:none;}
.anchor-pill{
  flex:0 0 auto;padding:9px 18px;border-radius:999px;
  border:1px solid var(--border);color:var(--text-2);font-size:14px;white-space:nowrap;
  transition:border-color .22s ease,color .22s ease,background .22s ease,transform .22s ease;
}
.anchor-pill:hover{border-color:rgba(79,227,193,.55);color:var(--brand);background:rgba(79,227,193,.12);transform:translateY(-1px);}

/* ---------- 板块标题 ---------- */
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:24px;margin-bottom:44px;flex-wrap:wrap;}
.section-head h2{
  position:relative;padding-left:18px;font-size:34px;line-height:1.2;
}
.section-head h2::before{
  content:"";position:absolute;left:0;top:6px;bottom:6px;width:3px;border-radius:2px;
  background:linear-gradient(180deg,var(--brand),var(--violet));
}
.section-desc{color:var(--text-2);font-size:16px;margin-top:14px;max-width:720px;padding-left:18px;}
.section-head .head-link{font-size:14.5px;color:var(--text-3);}
.section-head .head-link:hover{color:var(--brand);}

/* ---------- 功能卡片 ---------- */
.feature-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px;}
.feature-card{
  display:flex;gap:18px;padding:28px;
  background:var(--panel);border:1px solid var(--border);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.05);
  transition:transform .26s ease,border-color .26s ease,box-shadow .26s ease;
  scroll-margin-top:160px;
}
.feature-card:hover{transform:translateY(-4px);border-color:rgba(79,227,193,.45);box-shadow:0 16px 40px -14px rgba(79,227,193,.35);}
.feature-icon{
  width:48px;height:48px;flex:0 0 48px;border-radius:12px;
  display:inline-flex;align-items:center;justify-content:center;
  background:rgba(79,227,193,.12);border:1px solid rgba(79,227,193,.24);
}
.feature-body h3{font-size:20px;margin-bottom:10px;}
.feature-body p{color:var(--text-2);font-size:15.5px;line-height:1.85;}
.feature-meta{display:flex;gap:8px;margin-top:16px;flex-wrap:wrap;}

/* ---------- 对比表 ---------- */
.table-wrap{
  border:1px solid var(--border);border-radius:var(--radius-card);overflow:hidden;
  background:var(--panel);box-shadow:var(--shadow-card);
}
.table-scroll{overflow-x:auto;}
table.compare{width:100%;min-width:760px;border-collapse:collapse;}
table.compare th,table.compare td{padding:17px 22px;text-align:left;font-size:15px;}
table.compare thead th{
  background:var(--panel-2);color:var(--text-1);font-size:14.5px;font-weight:600;
  border-bottom:1px solid var(--border);white-space:nowrap;
}
table.compare thead th:first-child{color:var(--text-2);}
table.compare tbody td{color:var(--text-2);border-top:1px solid var(--border);}
table.compare tbody tr:nth-child(even) td{background:rgba(255,255,255,.03);}
table.compare tbody td:first-child{color:var(--text-1);}
table.compare .num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}
.table-note{color:var(--text-3);font-size:13.5px;margin-top:16px;}

/* ---------- CTA 带 ---------- */
.cta-band{
  position:relative;overflow:hidden;
  padding:88px 0;
  background:
    radial-gradient(760px 380px at 50% 0%,#12142E 0%,#06070F 78%),
    var(--bg);
  border-top:1px solid var(--border);
}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:720px;margin:0 auto;}
.cta-inner h2{font-size:34px;margin-bottom:16px;}
.cta-inner p{color:var(--text-2);font-size:16.5px;}
.cta-actions{display:flex;justify-content:center;gap:14px;margin-top:32px;flex-wrap:wrap;}

/* ---------- 页脚 ---------- */
.site-footer{
  background:#06070F;border-top:1px solid var(--border);
  padding:72px 0 28px;position:relative;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px;}
.footer-brand p{color:var(--text-3);font-size:14.5px;line-height:1.9;margin-top:14px;max-width:340px;}
.footer-col h4{font-size:15px;color:var(--text-1);margin-bottom:16px;font-weight:600;}
.footer-col ul{display:grid;gap:12px;}
.footer-col a{color:var(--text-2);font-size:14.5px;}
.footer-col a:hover{color:var(--brand);}
.footer-bottom{
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  border-top:1px solid var(--border);margin-top:48px;padding-top:22px;
  color:var(--text-3);font-size:13px;
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .page-hero h1{font-size:46px;}
}
@media (max-width:1023px){
  .container-x{padding:0 32px;}
  .nav-links{display:none;}
  .menu-toggle{display:inline-flex;}
  .mobile-drawer{
    display:block;position:fixed;top:72px;left:0;right:0;z-index:70;
    max-height:0;overflow:hidden;
    background:rgba(6,7,15,.96);
    backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid transparent;
    transition:max-height .34s ease,border-color .34s ease;
  }
  .mobile-drawer.is-open{max-height:82vh;overflow:auto;border-bottom-color:var(--border);}
  .mobile-drawer .drawer-inner{padding:22px 32px 32px;display:grid;gap:6px;}
  .mobile-drawer a.drawer-link{
    font-size:20px;color:var(--text-2);padding:12px 0;border-bottom:1px solid var(--border);
  }
  .mobile-drawer a.drawer-link.is-active{color:var(--brand);}
  .mobile-drawer .btn{margin-top:18px;width:100%;}
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .page-hero{padding:132px 0 68px;}
  .page-hero h1{font-size:40px;}
  .section{padding:72px 0;}
  .section-tight{padding:60px 0;}
  .section-head h2{font-size:29px;}
  .feature-grid{grid-template-columns:1fr;}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
  .footer-brand{grid-column:1 / -1;}
  .anchor-bar{top:60px;}
}
@media (max-width:767px){
  .container-x{padding:0 20px;}
  .page-hero h1{font-size:31px;}
  .hero-sub{font-size:16.5px;}
  .section{padding:56px 0;}
  .section-head{margin-bottom:32px;}
  .section-head h2{font-size:24px;}
  .section-desc{padding-left:0;font-size:15.5px;margin-top:10px;}
  .section-head h2{padding-left:14px;}
  .feature-card{padding:22px;flex-direction:column;gap:14px;}
  .cta-inner h2{font-size:25px;}
  .cta-band{padding:64px 0;}
  .site-footer{padding:56px 0 24px;}
  .footer-grid{grid-template-columns:1fr;gap:28px;}
  .footer-bottom{flex-direction:column;gap:8px;}
  .header-actions .btn-sm{padding:8px 12px;font-size:13.5px;}
  .mobile-drawer .drawer-inner{padding:18px 20px 28px;}
  .btn{width:100%;}
  .hero-actions .btn{width:100%;}
  .cta-actions .btn{width:100%;}
  .link-underline{width:auto;}
}
@media (prefers-reduced-motion:reduce){
  *{transition:none !important;animation:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: article */
:root{
  --bg-0:#06070F;
  --bg-1:#0C0E1C;
  --bg-2:#141834;
  --primary:#4FE3C1;
  --primary-deep:#2FB7A0;
  --violet:#8C6BFF;
  --gold:#F2C879;
  --text-1:#E9EDFB;
  --text-2:#A7AFCE;
  --text-3:#6C7595;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.14);
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-card:0 8px 24px rgba(3,5,14,.45);
  --shadow-glass:0 8px 24px rgba(3,5,14,.45), inset 0 1px 0 rgba(255,255,255,.06);
  --container:1200px;
  --font-sans:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,"Segoe UI",sans-serif;
  --font-num:Inter,system-ui,-apple-system,"Segoe UI",sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{
  margin:0;
  background:var(--bg-0);
  color:var(--text-1);
  font-family:var(--font-sans);
  font-size:16px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
ul,ol{margin:0;padding:0;list-style:none}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-0.01em;color:var(--text-1);line-height:1.3}
p{margin:0}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

.container-x{max-width:var(--container);margin:0 auto;padding-left:20px;padding-right:20px;width:100%}
@media (min-width:768px){.container-x{padding-left:32px;padding-right:32px}}
@media (min-width:1024px){.container-x{padding-left:40px;padding-right:40px}}

/* ---------- 顶部导航 ---------- */
.site-header{position:fixed;top:0;left:0;right:0;z-index:80;transition:background .28s ease, box-shadow .28s ease}
.nav-shell{
  background:rgba(6,7,15,.55);
  backdrop-filter:blur(18px) saturate(150%);
  -webkit-backdrop-filter:blur(18px) saturate(150%);
  border-bottom:1px solid rgba(255,255,255,.07);
  transition:background .28s ease, border-color .28s ease, box-shadow .28s ease;
}
.site-header.is-scrolled .nav-shell{
  background:rgba(6,7,15,.93);
  border-bottom-color:var(--line);
  box-shadow:0 10px 30px -18px rgba(0,0,0,.9);
}
.nav-inner{
  max-width:var(--container);margin:0 auto;padding:0 20px;
  height:72px;display:flex;align-items:center;gap:24px;justify-content:space-between;
  transition:height .28s ease;
}
@media (min-width:768px){.nav-inner{padding:0 32px}}
@media (min-width:1024px){.nav-inner{padding:0 40px}}
.site-header.is-scrolled .nav-inner{height:60px}
.brand{display:inline-flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{
  width:34px;height:34px;border-radius:10px;display:grid;place-items:center;
  background:linear-gradient(135deg,rgba(79,227,193,.20),rgba(140,107,255,.20));
  border:1px solid rgba(79,227,193,.35);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  transition:border-color .25s ease, box-shadow .25s ease;
}
.brand:hover .brand-mark{border-color:rgba(79,227,193,.7);box-shadow:0 0 0 1px rgba(79,227,193,.3),0 8px 22px -10px rgba(79,227,193,.6)}
.brand-text{font-size:17px;font-weight:600;color:var(--text-1);letter-spacing:.02em}
.nav-links{display:none;align-items:center;gap:4px}
@media (min-width:1024px){.nav-links{display:flex}}
.nav-link{
  position:relative;padding:8px 12px;font-size:14.5px;color:var(--text-2);
  border-radius:8px;transition:color .2s ease, background .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05)}
.nav-link.is-active{color:#fff}
.nav-link.is-active::after{
  content:"";position:absolute;left:12px;right:12px;bottom:-2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--violet));
}
.nav-actions{display:flex;align-items:center;gap:10px}
.icon-btn{
  width:38px;height:38px;border-radius:10px;display:none;place-items:center;
  border:1px solid var(--line);color:var(--text-2);transition:.22s ease;
}
@media (min-width:1024px){.icon-btn{display:grid}}
.icon-btn:hover{color:var(--primary);border-color:rgba(79,227,193,.5);background:rgba(79,227,193,.08)}
.nav-toggle{
  width:40px;height:40px;border-radius:10px;display:grid;place-items:center;
  border:1px solid var(--line);color:var(--text-1);transition:.22s ease;
}
@media (min-width:1024px){.nav-toggle{display:none}}
.nav-toggle:hover{border-color:rgba(79,227,193,.5);color:var(--primary)}

.mobile-drawer{
  position:fixed;inset:72px 0 0 0;z-index:75;display:none;
  background:rgba(6,7,15,.96);
  backdrop-filter:blur(20px);
  -webkit-backdrop-filter:blur(20px);
  border-top:1px solid var(--line);
  padding:24px 20px 40px;
  overflow-y:auto;
}
.mobile-drawer.is-open{display:block}
.mobile-drawer a.m-drawer-link{
  display:block;font-size:20px;padding:14px 4px;color:var(--text-2);
  border-bottom:1px solid rgba(255,255,255,.06);
}
.mobile-drawer a.m-drawer-link:hover{color:var(--primary)}
.mobile-cta{margin-top:24px}

/* ---------- 按钮 ---------- */
.btn-primary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);
  background:linear-gradient(135deg,#4FE3C1,#39B9D8);
  color:#05231F;font-weight:600;font-size:15px;letter-spacing:.01em;
  box-shadow:0 0 0 1px rgba(79,227,193,.35),0 10px 30px -8px rgba(79,227,193,.5);
  transition:transform .22s ease, filter .22s ease, box-shadow .22s ease;
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(79,227,193,.5),0 16px 38px -10px rgba(79,227,193,.65)}
.btn-primary:active{transform:translateY(0)}
.btn-primary.btn-sm{padding:9px 16px;font-size:14px}
.btn-secondary{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:12px 22px;border-radius:var(--radius-btn);
  border:1px solid rgba(79,227,193,.55);color:var(--primary);
  font-size:15px;font-weight:600;background:transparent;
  transition:background .22s ease, transform .22s ease, border-color .22s ease;
}
.btn-secondary:hover{background:rgba(79,227,193,.12);transform:translateY(-2px);border-color:var(--primary)}
.btn-secondary:active{transform:translateY(0)}
.link-more{font-size:14px;color:var(--text-3);transition:color .22s ease}
.link-more:hover{color:var(--primary)}

/* ---------- 徽章 / 标签 ---------- */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  padding:4px 12px;border-radius:999px;font-size:13.5px;
  background:rgba(79,227,193,.12);color:var(--primary);
  border:1px solid rgba(79,227,193,.22);
}
.tag{
  display:inline-flex;align-items:center;padding:6px 14px;border-radius:999px;
  font-size:13.5px;color:var(--text-2);border:1px solid var(--line);
  background:rgba(255,255,255,.03);transition:.22s ease;
}
.tag:hover{color:var(--primary);border-color:rgba(79,227,193,.5);background:rgba(79,227,193,.08)}

/* ---------- 文章头部 ---------- */
.article-hero{position:relative;overflow:hidden;padding:126px 0 48px;
  background:
    radial-gradient(120% 90% at 12% 0%, rgba(140,107,255,.20), transparent 62%),
    radial-gradient(90% 80% at 88% 6%, rgba(79,227,193,.14), transparent 60%),
    linear-gradient(180deg,#12142E,#06070F);
}
.article-hero::before{
  content:"";position:absolute;inset:0;
  background-image:url('/assets/images/backpic/back-2.png');
  background-size:cover;background-position:center;opacity:.14;pointer-events:none;
}
.starfield{position:absolute;inset:0;pointer-events:none;opacity:.55;
  background-image:
    radial-gradient(1.5px 1.5px at 8% 22%, rgba(255,255,255,.65), transparent),
    radial-gradient(1px 1px at 17% 62%, rgba(255,255,255,.5), transparent),
    radial-gradient(1.5px 1.5px at 26% 34%, rgba(255,255,255,.45), transparent),
    radial-gradient(1px 1px at 34% 78%, rgba(255,255,255,.55), transparent),
    radial-gradient(1.5px 1.5px at 43% 16%, rgba(255,255,255,.4), transparent),
    radial-gradient(1px 1px at 52% 54%, rgba(255,255,255,.6), transparent),
    radial-gradient(1.5px 1.5px at 61% 26%, rgba(255,255,255,.45), transparent),
    radial-gradient(1px 1px at 69% 70%, rgba(255,255,255,.5), transparent),
    radial-gradient(1.5px 1.5px at 77% 40%, rgba(255,255,255,.4), transparent),
    radial-gradient(1px 1px at 85% 66%, rgba(255,255,255,.55), transparent),
    radial-gradient(1.5px 1.5px at 93% 20%, rgba(255,255,255,.45), transparent);
}
.article-hero .container-x{position:relative;z-index:2}
.breadcrumb{display:flex;flex-wrap:wrap;align-items:center;gap:8px;font-size:14px;color:var(--text-3)}
.breadcrumb a{color:var(--text-3);transition:color .2s ease}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:rgba(255,255,255,.2)}
.breadcrumb .current{color:var(--text-2);max-width:100%;overflow:hidden;text-overflow:ellipsis;white-space:nowrap}
.article-h1{
  margin-top:22px;font-size:30px;line-height:1.22;letter-spacing:-0.01em;
  max-width:880px;
}
@media (min-width:768px){.article-h1{font-size:36px}}
@media (min-width:1024px){.article-h1{font-size:40px}}
.article-meta{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px;font-size:14px;color:var(--text-3)}
.article-meta .dot{color:rgba(255,255,255,.2)}

/* ---------- 正文布局 ---------- */
.article-wrap{padding:56px 0 8px}
@media (min-width:1024px){.article-wrap{padding:72px 0 8px}}
.article-layout{display:grid;grid-template-columns:1fr;gap:40px}
@media (min-width:1280px){.article-layout{grid-template-columns:minmax(0,1fr) 300px;gap:48px}}
.article-panel{
  background:var(--bg-1);
  border:1px solid var(--line);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  padding:26px 20px 34px;
}
@media (min-width:768px){.article-panel{padding:40px 44px 48px}}
.article-body{max-width:760px;margin:0 auto;font-size:17px;line-height:1.9;color:var(--text-2)}
.article-body > * + *{margin-top:1.6em}
.article-body p{margin:0}
.article-body h2{
  position:relative;margin-top:2.2em;padding-left:16px;
  font-size:24px;line-height:1.36;color:var(--text-1);
}
@media (min-width:768px){.article-body h2{font-size:28px}}
.article-body h2::before{
  content:"";position:absolute;left:0;top:.26em;width:3px;height:1.05em;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--violet));
}
.article-body h3{font-size:19px;margin-top:1.8em;color:var(--text-1)}
.article-body h4{font-size:17px;margin-top:1.6em;color:var(--text-1)}
.article-body a{color:var(--primary);border-bottom:1px solid rgba(79,227,193,.35);transition:border-color .2s ease}
.article-body a:hover{border-bottom-color:var(--primary)}
.article-body strong{color:var(--text-1);font-weight:600}
.article-body ul,.article-body ol{padding-left:1.25em}
.article-body ul{list-style:disc}
.article-body ol{list-style:decimal}
.article-body li{margin:.62em 0}
.article-body li::marker{color:var(--primary)}
.article-body blockquote{
  margin:1.8em 0;padding:18px 22px;border-left:3px solid var(--primary);
  background:rgba(255,255,255,.04);
  border-radius:0 var(--radius-img) var(--radius-img) 0;
  backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);
  color:var(--text-1);font-size:16.5px;
}
.article-body blockquote p{margin:0}
.article-body img{border-radius:var(--radius-img);border:1px solid var(--line);margin:1.8em auto;transition:transform .3s ease}
.article-body img:hover{transform:scale(1.01)}
.article-body figure{margin:1.8em 0}
.article-body figcaption{font-size:13px;color:var(--text-3);text-align:center;margin-top:10px}
.article-body table{width:100%;border-collapse:collapse;font-size:15px;margin:1.8em 0;display:block;overflow-x:auto}
.article-body th,.article-body td{border:1px solid var(--line);padding:12px 14px;text-align:left;white-space:nowrap}
.article-body th{background:var(--bg-2);color:var(--text-1);font-weight:600}
.article-body code{
  font-family:ui-monospace,SFMono-Regular,Menlo,monospace;font-size:14.5px;
  color:var(--primary);background:rgba(79,227,193,.08);padding:2px 6px;border-radius:6px;
}
.article-body pre{
  background:#080A16;border:1px solid var(--line);border-radius:var(--radius-img);
  padding:18px;overflow-x:auto;line-height:1.7;
}
.article-body pre code{background:none;color:#BFE9DE;padding:0}
.article-body hr{border:0;border-top:1px solid var(--line);margin:2.4em 0}

.empty-state{text-align:center;padding:32px 8px 12px}
.empty-state svg{margin:0 auto 18px}
.empty-state h2{font-size:22px;color:var(--text-1);margin-bottom:12px}
.empty-state h2::before{display:none}
.empty-state p{font-size:15.5px;color:var(--text-2);max-width:460px;margin:0 auto 24px}

/* ---------- 正文尾部 ---------- */
.article-foot{max-width:760px;margin:40px auto 0;padding-top:32px;border-top:1px solid var(--line)}
.tag-row{display:flex;flex-wrap:wrap;align-items:center;gap:10px}
.tag-row .tag-label{font-size:13.5px;color:var(--text-3);margin-right:4px}
.post-nav{display:grid;grid-template-columns:1fr;gap:16px;margin-top:28px}
@media (min-width:640px){.post-nav{grid-template-columns:1fr 1fr}}
.post-nav-card{
  display:block;padding:20px;border-radius:var(--radius-card);
  background:var(--bg-1);border:1px solid var(--line);
  transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.post-nav-card:hover{transform:translateY(-4px);border-color:rgba(79,227,193,.45);box-shadow:0 12px 30px -14px rgba(79,227,193,.35)}
.post-nav-dir{display:block;font-size:13px;color:var(--primary);margin-bottom:8px}
.post-nav-title{display:block;font-size:16.5px;font-weight:600;color:var(--text-1);line-height:1.55}
.post-nav-meta{display:block;font-size:13px;color:var(--text-3);margin-top:8px}
.back-link{display:inline-flex;align-items:center;gap:6px;margin-top:26px;font-size:14.5px;color:var(--text-2);transition:color .2s ease}
.back-link:hover{color:var(--primary)}

/* ---------- 侧栏 ---------- */
.article-side{display:flex;flex-direction:column;gap:24px}
@media (min-width:1280px){.article-side{position:sticky;top:96px;align-self:start}}
.side-card{
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-card);
  padding:22px;box-shadow:var(--shadow-card);
}
.side-card h3{display:flex;align-items:center;gap:8px;font-size:15.5px;color:var(--text-1);margin-bottom:14px}
.side-card h3::before{content:"";width:3px;height:14px;border-radius:3px;background:linear-gradient(180deg,var(--primary),var(--violet))}
.toc-link{
  display:block;padding:7px 10px;font-size:14px;color:var(--text-3);
  border-left:2px solid transparent;border-radius:0 8px 8px 0;transition:.2s ease;
  overflow:hidden;text-overflow:ellipsis;white-space:nowrap;
}
.toc-link:hover{color:var(--text-1);background:rgba(255,255,255,.04)}
.toc-link.is-sub{padding-left:22px;font-size:13.5px}
.toc-link.is-active{color:var(--primary);border-left-color:var(--primary);background:rgba(79,227,193,.08)}
.hot-list li + li{border-top:1px solid rgba(255,255,255,.06)}
.hot-list a{display:block;padding:12px 0;font-size:14.5px;color:var(--text-2);line-height:1.6;transition:color .2s ease}
.hot-list a:hover{color:var(--primary)}
.hot-list .hot-meta{display:block;font-size:12.5px;color:var(--text-3);margin-top:6px}

/* ---------- 相关推荐 ---------- */
.related-section{padding:64px 0 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:24px}
.section-title{position:relative;padding-left:14px;font-size:24px}
.section-title::before{
  content:"";position:absolute;left:0;top:.2em;width:3px;height:1.05em;border-radius:3px;
  background:linear-gradient(180deg,var(--primary),var(--violet));
}
.related-grid{display:grid;grid-template-columns:1fr;gap:20px}
@media (min-width:640px){.related-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.related-grid{grid-template-columns:repeat(3,1fr)}}
.post-card{
  display:flex;flex-direction:column;overflow:hidden;
  background:var(--bg-1);border:1px solid var(--line);border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.post-card:hover{transform:translateY(-4px);border-color:rgba(79,227,193,.45);box-shadow:0 14px 34px -16px rgba(79,227,193,.4)}
.post-card .thumb{aspect-ratio:16/9;overflow:hidden;border-bottom:1px solid var(--line)}
.post-card .thumb img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease}
.post-card:hover .thumb img{transform:scale(1.03)}
.post-card .card-body{padding:18px 20px 20px;display:flex;flex-direction:column;gap:10px;flex:1}
.post-card h3{
  font-size:17px;line-height:1.55;color:var(--text-1);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .card-desc{
  font-size:14.5px;color:var(--text-2);line-height:1.75;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.post-card .card-meta{margin-top:auto;font-size:13px;color:var(--text-3);display:flex;align-items:center;gap:8px}

/* ---------- CTA ---------- */
.cta-band{position:relative;overflow:hidden;margin-top:72px;padding:72px 0;
  background:radial-gradient(120% 120% at 50% 0%, rgba(18,20,46,1), #06070F 70%);
  border-top:1px solid var(--line);
}
.cta-band .starfield{opacity:.5}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:720px;margin:0 auto}
.cta-band h2{font-size:26px}
@media (min-width:768px){.cta-band h2{font-size:32px}}
.cta-band p{margin-top:14px;font-size:16px;color:var(--text-2)}
.cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-top:28px}

/* ---------- 页脚 ---------- */
.site-footer{background:#04050B;border-top:1px solid var(--line);padding:56px 0 28px;margin-top:0}
.footer-grid{display:grid;grid-template-columns:1fr;gap:32px}
@media (min-width:640px){.footer-grid{grid-template-columns:1fr 1fr}}
@media (min-width:1024px){.footer-grid{grid-template-columns:1.4fr 1fr 1fr 1fr;gap:40px}}
.footer-brand p{font-size:14.5px;color:var(--text-3);line-height:1.85;margin-top:12px;max-width:340px}
.footer-brand .brand{margin-bottom:4px}
.footer-col h4{font-size:15px;color:var(--text-1);margin-bottom:14px}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{font-size:14.5px;color:var(--text-3);transition:color .2s ease}
.footer-col ul a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:40px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;flex-wrap:wrap;gap:10px;justify-content:space-between;
  font-size:13.5px;color:var(--text-3);
}
@media (max-width:640px){
  .article-hero{padding:104px 0 36px}
  .article-h1{font-size:27px}
  .btn-primary,.btn-secondary{width:100%}
  .cta-actions .btn-primary,.cta-actions .btn-secondary{width:auto}
  .section-head{flex-direction:column;align-items:flex-start;gap:10px}
}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important;scroll-behavior:auto!important}
  .post-card:hover,.post-nav-card:hover,.btn-primary:hover,.btn-secondary:hover{transform:none}
}

/* roulang page: category2 */
:root{
  --bg:#06070F;
  --bg-soft:#0C0E1C;
  --panel:#0C0E1C;
  --panel-2:#141834;
  --primary:#4FE3C1;
  --primary-deep:#2FB7A0;
  --violet:#8C6BFF;
  --gold:#F2C879;
  --text-1:#E9EDFB;
  --text-2:#A7AFCE;
  --text-3:#6C7595;
  --border:rgba(255,255,255,.08);
  --border-strong:rgba(255,255,255,.14);
  --radius-card:16px;
  --radius-img:12px;
  --radius-btn:10px;
  --shadow-card:0 8px 24px rgba(3,5,14,.45);
  --shadow-glass:0 8px 24px rgba(3,5,14,.45), inset 0 1px 0 rgba(255,255,255,.06);
  --container:1200px;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:Inter,system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  margin:0;
  background:var(--bg);
  color:var(--text-1);
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.8;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
  overflow-x:hidden;
}
img{max-width:100%;display:block;}
a{color:inherit;text-decoration:none;}
button{font-family:inherit;cursor:pointer;}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-0.01em;color:var(--text-1);}
p{margin:0;}
ul{margin:0;padding:0;list-style:none;}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums;}
::selection{background:rgba(79,227,193,.28);}

.container-x{
  width:100%;
  max-width:var(--container);
  margin:0 auto;
  padding-left:40px;
  padding-right:40px;
}
@media (min-width:1440px){ .container-x{max-width:1280px;} }

/* ---------- 星点背景 ---------- */
.star-field{position:relative;overflow:hidden;}
.star-field::before{
  content:"";
  position:absolute;
  inset:0;
  pointer-events:none;
  background-image:
    radial-gradient(1.5px 1.5px at 12% 22%, rgba(255,255,255,.55), transparent 100%),
    radial-gradient(1px 1px at 26% 68%, rgba(255,255,255,.38), transparent 100%),
    radial-gradient(1.5px 1.5px at 41% 14%, rgba(255,255,255,.42), transparent 100%),
    radial-gradient(1px 1px at 58% 82%, rgba(255,255,255,.32), transparent 100%),
    radial-gradient(1.5px 1.5px at 72% 34%, rgba(255,255,255,.5), transparent 100%),
    radial-gradient(1px 1px at 87% 62%, rgba(255,255,255,.34), transparent 100%),
    radial-gradient(1px 1px at 94% 18%, rgba(255,255,255,.4), transparent 100%),
    radial-gradient(1.5px 1.5px at 8% 88%, rgba(255,255,255,.3), transparent 100%),
    radial-gradient(1px 1px at 34% 46%, rgba(255,255,255,.26), transparent 100%),
    radial-gradient(1px 1px at 66% 8%, rgba(255,255,255,.3), transparent 100%),
    radial-gradient(1px 1px at 48% 74%, rgba(255,255,255,.22), transparent 100%),
    radial-gradient(1.5px 1.5px at 80% 90%, rgba(255,255,255,.3), transparent 100%);
  opacity:.85;
}
.hero-glow{background:radial-gradient(120% 80% at 18% 0%, #12142E 0%, #06070F 62%);}

/* ---------- 头部导航 ---------- */
.site-header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:80;
  background:linear-gradient(180deg, rgba(6,7,15,.72) 0%, rgba(6,7,15,.28) 70%, rgba(6,7,15,0) 100%);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid transparent;
  transition:background .3s ease, border-color .3s ease, box-shadow .3s ease, backdrop-filter .3s ease;
}
.site-header.scrolled{
  background:rgba(6,7,15,.9);
  backdrop-filter:blur(16px);
  -webkit-backdrop-filter:blur(16px);
  border-bottom:1px solid var(--border);
  box-shadow:0 12px 32px rgba(3,5,14,.55);
}
.nav-wrap{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  transition:height .3s ease;
}
.site-header.scrolled .nav-wrap{height:60px;}
.brand{display:inline-flex;align-items:center;gap:10px;}
.brand-mark{
  width:32px;height:32px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:linear-gradient(135deg, rgba(79,227,193,.18), rgba(140,107,255,.18));
  border:1px solid rgba(79,227,193,.28);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  flex:0 0 auto;
}
.brand-text{
  font-size:17px;
  font-weight:600;
  letter-spacing:.01em;
  color:var(--text-1);
  white-space:nowrap;
}
.nav-links{display:flex;align-items:center;gap:2px;}
.nav-link{
  position:relative;
  display:inline-block;
  padding:9px 13px;
  font-size:15px;
  color:var(--text-2);
  border-radius:8px;
  transition:color .2s ease, background .2s ease;
  white-space:nowrap;
}
.nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.045);}
.nav-link.is-active{color:var(--primary);}
.nav-link.is-active::after{
  content:"";
  position:absolute;
  left:13px;right:13px;bottom:2px;
  height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--violet));
}
.nav-actions{display:flex;align-items:center;gap:12px;}
.icon-btn{
  width:38px;height:38px;
  display:inline-flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
  color:var(--text-2);
  transition:all .2s ease;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(79,227,193,.4);background:rgba(79,227,193,.1);}
.menu-toggle{
  display:none;
  width:40px;height:40px;
  align-items:center;justify-content:center;
  border-radius:10px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
  color:var(--text-1);
}
.menu-toggle span{display:block;width:18px;height:1.5px;background:currentColor;border-radius:2px;}
.menu-toggle span+span{margin-top:5px;}

/* 移动抽屉 */
.mobile-drawer{
  position:fixed;
  inset:0;
  z-index:90;
  background:rgba(6,7,15,.92);
  backdrop-filter:blur(18px);
  -webkit-backdrop-filter:blur(18px);
  padding:88px 24px 32px;
  display:flex;
  flex-direction:column;
  gap:6px;
  transform:translateY(-102%);
  transition:transform .34s cubic-bezier(.4,0,.2,1);
  overflow-y:auto;
}
.mobile-drawer.open{transform:translateY(0);}
.mobile-drawer .drawer-close{
  position:absolute;top:18px;right:20px;
  width:40px;height:40px;border-radius:10px;
  background:rgba(255,255,255,.05);
  border:1px solid var(--border);
  color:var(--text-1);
  font-size:20px;line-height:1;
  display:flex;align-items:center;justify-content:center;
}
.mobile-drawer a.d-link{
  padding:14px 12px;
  font-size:20px;
  color:var(--text-2);
  border-radius:12px;
  border-bottom:1px solid rgba(255,255,255,.05);
  transition:.2s;
}
.mobile-drawer a.d-link:hover,.mobile-drawer a.d-link.is-active{color:var(--primary);background:rgba(79,227,193,.08);}
.drawer-cta{margin-top:22px;}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:8px;
  padding:13px 24px;
  border-radius:var(--radius-btn);
  font-size:15px;
  font-weight:600;
  line-height:1.2;
  border:1px solid transparent;
  transition:transform .22s ease, filter .22s ease, box-shadow .22s ease, background .22s ease, color .22s ease;
}
.btn-primary{
  background:linear-gradient(135deg,#4FE3C1 0%,#39B9D8 100%);
  color:#03130F;
  box-shadow:0 0 0 1px rgba(79,227,193,.35), 0 10px 30px -8px rgba(79,227,193,.5);
}
.btn-primary:hover{
  filter:brightness(1.08);
  transform:translateY(-2px);
  box-shadow:0 0 0 1px rgba(79,227,193,.5), 0 16px 40px -8px rgba(79,227,193,.62);
}
.btn-primary:active{transform:translateY(0);filter:brightness(.98);}
.btn-ghost{
  background:transparent;
  border-color:rgba(79,227,193,.45);
  color:var(--primary);
}
.btn-ghost:hover{background:rgba(79,227,193,.12);transform:translateY(-2px);}
.btn-ghost:active{transform:translateY(0);}
.btn-quiet{
  padding:0;
  background:none;
  border:none;
  color:var(--primary);
  font-size:15px;
  font-weight:600;
  border-bottom:1px solid transparent;
  padding-bottom:2px;
  transition:border-color .2s ease,color .2s ease;
}
.btn-quiet:hover{border-color:var(--primary);}
.btn-sm{padding:9px 16px;font-size:14px;}
.btn-block{width:100%;}
.btn:focus-visible,.icon-btn:focus-visible,.menu-toggle:focus-visible,a:focus-visible{
  outline:2px solid var(--primary);
  outline-offset:2px;
  box-shadow:0 0 0 3px rgba(79,227,193,.28);
}

/* ---------- 页面留白 ---------- */
main{padding-top:72px;}
.section{padding:96px 0;}
.section-tight{padding:72px 0;}
@media (max-width:1023px){
  .section{padding:72px 0;}
  .section-tight{padding:56px 0;}
}
@media (max-width:640px){
  .section{padding:56px 0;}
  .section-tight{padding:44px 0;}
  .container-x{padding-left:20px;padding-right:20px;}
}

/* ---------- 面包屑 ---------- */
.breadcrumb{
  display:flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  color:var(--text-3);
  padding:28px 0 0;
  flex-wrap:wrap;
}
.breadcrumb a{color:var(--text-3);transition:color .2s;}
.breadcrumb a:hover{color:var(--primary);}
.breadcrumb .sep{color:rgba(255,255,255,.2);}
.breadcrumb .current{color:var(--text-2);}

/* ---------- 内页 Hero ---------- */
.hero-mini{
  border-radius:0;
  padding:34px 0 72px;
  position:relative;
}
.hero-grid{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:56px;
  align-items:center;
}
.eyebrow{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding:6px 14px;
  border-radius:999px;
  font-size:13.5px;
  color:var(--primary);
  background:rgba(79,227,193,.12);
  border:1px solid rgba(79,227,193,.2);
}
.hero-mini h1{
  font-size:50px;
  line-height:1.15;
  margin-top:20px;
  letter-spacing:-0.015em;
}
.hero-mini .lead{
  margin-top:18px;
  font-size:18px;
  color:var(--text-2);
  max-width:620px;
}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px;}
.hero-meta{
  display:flex;
  flex-wrap:wrap;
  gap:0;
  margin-top:34px;
  border-top:1px solid var(--border);
  padding-top:20px;
}
.hero-meta .item{
  padding-right:26px;
  margin-right:26px;
  border-right:1px solid var(--border);
}
.hero-meta .item:last-child{border-right:none;margin-right:0;padding-right:0;}
.hero-meta .k{font-size:13px;color:var(--text-3);}
.hero-meta .v{font-size:19px;font-weight:600;color:var(--text-1);}
.hero-figure{position:relative;}
.hero-figure img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid var(--border-strong);
  box-shadow:var(--shadow-card);
}
.hero-figure::after{
  content:"";
  position:absolute;
  inset:-12px;
  border-radius:20px;
  border:1px solid rgba(79,227,193,.22);
  pointer-events:none;
}
@media (max-width:1023px){
  .hero-grid{grid-template-columns:1fr;gap:36px;}
  .hero-mini h1{font-size:36px;}
  .hero-mini{padding:20px 0 48px;}
}
@media (max-width:640px){
  .hero-mini h1{font-size:30px;}
  .hero-mini .lead{font-size:16.5px;}
  .hero-meta .item{padding-right:18px;margin-right:18px;}
}

/* ---------- 分栏布局：粘性目录 + 内容流 ---------- */
.split-layout{
  display:grid;
  grid-template-columns:248px 1fr;
  gap:56px;
  align-items:start;
}
.toc{
  position:sticky;
  top:104px;
  padding:22px 20px;
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  box-shadow:var(--shadow-card);
}
.toc h4{
  font-size:13px;
  letter-spacing:.08em;
  color:var(--text-3);
  font-weight:500;
  margin-bottom:14px;
}
.toc ol{display:flex;flex-direction:column;gap:4px;counter-reset:toc;}
.toc a{
  display:flex;
  gap:10px;
  align-items:flex-start;
  padding:9px 10px;
  font-size:14.5px;
  color:var(--text-2);
  border-radius:9px;
  border-left:2px solid transparent;
  transition:.2s;
}
.toc a .idx{
  font-family:var(--font-num);
  font-size:12.5px;
  color:var(--text-3);
  padding-top:2px;
}
.toc a:hover{color:var(--text-1);background:rgba(255,255,255,.04);}
.toc a.is-active{
  color:var(--primary);
  background:rgba(79,227,193,.1);
  border-left-color:var(--primary);
}
.toc a.is-active .idx{color:var(--primary);}
.toc-note{
  margin-top:18px;
  padding-top:16px;
  border-top:1px solid var(--border);
  font-size:13.5px;
  color:var(--text-3);
  line-height:1.7;
}
@media (max-width:1023px){
  .split-layout{grid-template-columns:1fr;gap:32px;}
  .toc{
    position:static;
    display:flex;
    gap:10px;
    overflow-x:auto;
    padding:14px;
    scrollbar-width:none;
  }
  .toc::-webkit-scrollbar{display:none;}
  .toc h4,.toc-note{display:none;}
  .toc ol{flex-direction:row;gap:8px;}
  .toc a{
    white-space:nowrap;
    border-left:none;
    border:1px solid var(--border);
    border-radius:999px;
    padding:8px 15px;
    font-size:14px;
  }
  .toc a.is-active{border-color:rgba(79,227,193,.5);}
}

/* ---------- 场景分块 ---------- */
.scene{
  scroll-margin-top:104px;
  padding:32px;
  border-radius:var(--radius-card);
  background:var(--panel);
  border:1px solid var(--border);
  box-shadow:var(--shadow-card);
  margin-bottom:28px;
}
.scene-inner{
  display:grid;
  grid-template-columns:1.05fr .95fr;
  gap:36px;
  align-items:center;
}
.scene.reverse .scene-inner .scene-text{order:2;}
.scene.reverse .scene-inner .scene-figure{order:1;}
.scene-num{
  font-family:var(--font-num);
  font-size:34px;
  font-weight:600;
  color:rgba(255,255,255,.13);
  line-height:1;
  letter-spacing:.02em;
}
.scene h3{
  font-size:22px;
  margin-top:14px;
}
.scene-text p{
  margin-top:14px;
  color:var(--text-2);
  font-size:16px;
}
.check-list{margin-top:20px;display:flex;flex-direction:column;gap:11px;}
.check-list li{
  position:relative;
  padding-left:20px;
  font-size:15.5px;
  color:var(--text-2);
}
.check-list li::before{
  content:"";
  position:absolute;
  left:0;top:11px;
  width:7px;height:7px;
  border-radius:50%;
  background:var(--primary);
  box-shadow:0 0 10px rgba(79,227,193,.65);
}
.scene-figure img{
  width:100%;
  aspect-ratio:16/11;
  object-fit:cover;
  border-radius:var(--radius-img);
  border:1px solid var(--border-strong);
  transition:transform .35s ease;
}
.scene-figure{overflow:hidden;border-radius:var(--radius-img);}
.scene:hover .scene-figure img{transform:scale(1.03);}
.scene-link{margin-top:22px;display:inline-flex;}
@media (max-width:900px){
  .scene-inner{grid-template-columns:1fr;gap:24px;}
  .scene.reverse .scene-inner .scene-text{order:0;}
  .scene.reverse .scene-inner .scene-figure{order:0;}
  .scene{padding:24px;}
}

/* ---------- 步骤条 ---------- */
.steps-wrap{
  margin-top:8px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:22px;
  position:relative;
}
.steps-wrap::before{
  content:"";
  position:absolute;
  left:6%;right:6%;top:19px;
  height:1px;
  background:linear-gradient(90deg, rgba(79,227,193,.6), rgba(140,107,255,.45));
}
.step{position:relative;text-align:left;}
.step .dot{
  width:38px;height:38px;
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  background:var(--panel-2);
  border:1px solid rgba(79,227,193,.42);
  color:var(--primary);
  font-family:var(--font-num);
  font-size:14px;
  font-weight:600;
  box-shadow:0 0 0 5px rgba(6,7,15,.9);
}
.step h4{margin-top:16px;font-size:16.5px;}
.step p{margin-top:8px;font-size:14.5px;color:var(--text-3);line-height:1.7;}
@media (max-width:900px){
  .steps-wrap{grid-template-columns:1fr 1fr;gap:26px;}
  .steps-wrap::before{display:none;}
}
@media (max-width:560px){
  .steps-wrap{grid-template-columns:1fr;}
}

/* ---------- 板块标题 ---------- */
.section-head{
  display:flex;
  align-items:flex-end;
  justify-content:space-between;
  gap:24px;
  margin-bottom:38px;
  flex-wrap:wrap;
}
.section-head h2{
  font-size:34px;
  line-height:1.25;
  padding-left:18px;
  position:relative;
}
.section-head h2::before{
  content:"";
  position:absolute;
  left:0;top:8px;bottom:8px;
  width:3px;
  border-radius:2px;
  background:linear-gradient(180deg,var(--primary),rgba(140,107,255,.6));
}
.section-head .sub{
  margin-top:12px;
  padding-left:18px;
  color:var(--text-2);
  font-size:16px;
  max-width:680px;
}
.section-head .more{
  font-size:14.5px;
  color:var(--text-3);
  transition:color .2s;
  white-space:nowrap;
}
.section-head .more:hover{color:var(--primary);}
@media (max-width:640px){
  .section-head h2{font-size:25px;}
}

/* ---------- FAQ ---------- */
.faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px;}
.faq-item{
  border:1px solid var(--border);
  border-radius:var(--radius-card);
  background:var(--panel);
  overflow:hidden;
  transition:border-color .25s ease, background .25s ease;
}
.faq-item.open{border-color:rgba(79,227,193,.36);background:rgba(20,24,52,.62);}
.faq-q{
  width:100%;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:20px;
  padding:20px 24px;
  background:none;
  border:none;
  color:var(--text-1);
  font-size:17px;
  font-weight:600;
  text-align:left;
  line-height:1.6;
}
.faq-q .plus{
  flex:0 0 auto;
  width:26px;height:26px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  border:1px solid rgba(79,227,193,.4);
  color:var(--primary);
  font-size:16px;
  transition:transform .28s ease, background .28s ease;
}
.faq-item.open .faq-q .plus{transform:rotate(45deg);background:rgba(79,227,193,.14);}
.faq-a{
  max-height:0;
  overflow:hidden;
  transition:max-height .34s ease;
}
.faq-a p{
  padding:0 24px 22px;
  color:var(--text-2);
  font-size:15px;
  line-height:1.85;
}

/* ---------- CTA ---------- */
.cta-band{
  border-radius:22px;
  padding:64px 56px;
  background:radial-gradient(120% 140% at 12% 0%, #12142E 0%, #06070F 66%);
  border:1px solid var(--border-strong);
  box-shadow:var(--shadow-glass);
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-band h2{font-size:34px;line-height:1.25;}
.cta-band p{margin:16px auto 0;max-width:640px;color:var(--text-2);font-size:16.5px;}
.cta-actions{display:flex;justify-content:center;gap:14px;margin-top:32px;flex-wrap:wrap;}
@media (max-width:640px){
  .cta-band{padding:40px 22px;border-radius:18px;}
  .cta-band h2{font-size:25px;}
  .cta-actions .btn{width:100%;}
}

/* ---------- 页脚 ---------- */
.site-footer{
  margin-top:96px;
  padding:64px 0 28px;
  background:linear-gradient(180deg, rgba(12,14,28,.5) 0%, rgba(6,7,15,1) 42%);
  border-top:1px solid var(--border);
  position:relative;
}
.footer-grid{
  display:grid;
  grid-template-columns:1.4fr 1fr 1fr 1.1fr;
  gap:44px;
}
.footer-brand .brand{margin-bottom:18px;}
.footer-brand p{
  color:var(--text-3);
  font-size:14.5px;
  line-height:1.85;
  margin-bottom:10px;
  max-width:340px;
}
.footer-col h4{
  font-size:15px;
  color:var(--text-1);
  margin-bottom:16px;
  font-weight:600;
}
.footer-col ul{display:flex;flex-direction:column;gap:11px;}
.footer-col a{
  color:var(--text-2);
  font-size:14.5px;
  transition:color .2s ease;
}
.footer-col a:hover{color:var(--primary);}
.footer-bottom{
  margin-top:48px;
  padding-top:22px;
  border-top:1px solid var(--border);
  display:flex;
  justify-content:space-between;
  gap:16px;
  flex-wrap:wrap;
  font-size:13.5px;
  color:var(--text-3);
}
@media (max-width:1023px){
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px;}
}
@media (max-width:640px){
  .footer-grid{grid-template-columns:1fr;gap:30px;}
  .site-footer{margin-top:64px;}
}

@media (max-width:1023px){
  .nav-links{display:none;}
  .menu-toggle{display:flex;}
}
@media (max-width:520px){
  .nav-actions .btn-primary{display:none;}
}

@media (prefers-reduced-motion:reduce){
  *{animation:none !important;transition:none !important;}
  html{scroll-behavior:auto;}
}

/* roulang page: category3 */
:root{
    --star:#4FE3C1;
    --star-deep:#2FB7A0;
    --nebula:#8C6BFF;
    --gold:#F2C879;
    --bg:#06070F;
    --panel:#0C0E1C;
    --raised:#141834;
    --text-1:#E9EDFB;
    --text-2:#A7AFCE;
    --text-3:#6C7595;
    --line:rgba(255,255,255,.08);
    --line-strong:rgba(255,255,255,.14);
    --r-card:16px;
    --r-img:12px;
    --r-btn:10px;
    --shadow-card:0 8px 24px rgba(3,5,14,.45);
    --shadow-glass:0 8px 24px rgba(3,5,14,.45), inset 0 1px 0 rgba(255,255,255,.06);
    --glow:0 0 0 1px rgba(79,227,193,.35), 0 10px 30px -8px rgba(79,227,193,.5);
    --gap-section:96px;
    --nav-h:72px;
  }

  *,*::before,*::after{box-sizing:border-box}
  html{-webkit-text-size-adjust:100%;scroll-behavior:smooth}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text-1);
    font-family:"Inter","PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
    font-size:16.5px;
    line-height:1.8;
    -webkit-font-smoothing:antialiased;
  }
  img{display:block;max-width:100%;height:auto;border-radius:var(--r-img)}
  a{color:inherit;text-decoration:none}
  button{font:inherit;color:inherit;background:none;border:0;cursor:pointer}
  h1,h2,h3,h4{margin:0;font-weight:600;line-height:1.2;letter-spacing:-.01em}
  p{margin:0}
  ul{margin:0;padding:0;list-style:none}
  .num,.stat-num,.metric-num{font-variant-numeric:tabular-nums}
  :focus-visible{outline:2px solid var(--star);outline-offset:3px;border-radius:6px}

  .container-x{
    width:100%;
    max-width:1200px;
    margin:0 auto;
    padding-left:20px;
    padding-right:20px;
  }
  @media (min-width:768px){ .container-x{padding-left:32px;padding-right:32px} }
  @media (min-width:1024px){ .container-x{padding-left:40px;padding-right:40px} }
  @media (min-width:1440px){ .container-x{max-width:1280px} }

  .section{padding-top:var(--gap-section);padding-bottom:var(--gap-section)}
  @media (max-width:1023px){ :root{--gap-section:72px} }
  @media (max-width:639px){ :root{--gap-section:56px} }

  /* ---------- 星点背景 ---------- */
  .starfield{position:relative;overflow:hidden;isolation:isolate}
  .starfield::before{
    content:"";
    position:absolute;
    inset:0;
    pointer-events:none;
    z-index:-1;
    opacity:.6;
    background-image:
      radial-gradient(1.5px 1.5px at 8% 24%, rgba(255,255,255,.8), transparent 60%),
      radial-gradient(1px 1px at 18% 62%, rgba(255,255,255,.6), transparent 60%),
      radial-gradient(1.5px 1.5px at 29% 15%, rgba(79,227,193,.7), transparent 60%),
      radial-gradient(1px 1px at 41% 48%, rgba(255,255,255,.55), transparent 60%),
      radial-gradient(2px 2px at 54% 22%, rgba(255,255,255,.7), transparent 60%),
      radial-gradient(1px 1px at 63% 71%, rgba(140,107,255,.6), transparent 60%),
      radial-gradient(1.5px 1.5px at 74% 35%, rgba(255,255,255,.6), transparent 60%),
      radial-gradient(1px 1px at 83% 58%, rgba(255,255,255,.5), transparent 60%),
      radial-gradient(1.5px 1.5px at 91% 19%, rgba(242,200,121,.55), transparent 60%),
      radial-gradient(1px 1px at 96% 76%, rgba(255,255,255,.5), transparent 60%);
    background-repeat:no-repeat;
  }
  .radial-glow{
    background-image:radial-gradient(120% 90% at 12% 0%, #12142E 0%, #06070F 62%);
  }

  /* ---------- 导航 ---------- */
  .site-header{
    position:fixed;
    inset:0 0 auto 0;
    z-index:60;
    height:var(--nav-h);
    display:flex;
    align-items:center;
    background:rgba(6,7,15,.55);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    border-bottom:1px solid var(--line);
    transition:height .28s ease, background .28s ease, box-shadow .28s ease;
  }
  .site-header.is-scrolled{
    height:60px;
    background:rgba(6,7,15,.92);
    box-shadow:0 14px 34px -18px rgba(0,0,0,.95);
  }
  .nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;width:100%}
  .brand{display:inline-flex;align-items:center;gap:10px}
  .brand-mark{
    display:inline-flex;align-items:center;justify-content:center;
    width:32px;height:32px;border-radius:10px;
    background:rgba(79,227,193,.12);
    border:1px solid rgba(79,227,193,.28);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  }
  .brand-text{font-size:17px;font-weight:600;letter-spacing:.01em}
  .nav-links{display:flex;align-items:center;gap:2px}
  .nav-link{
    position:relative;
    display:inline-block;
    padding:8px 12px;
    font-size:15px;
    color:var(--text-2);
    border-radius:8px;
    transition:color .2s ease, background .2s ease;
  }
  .nav-link:hover{color:#fff;background:rgba(255,255,255,.05)}
  .nav-link.is-active{color:#fff}
  .nav-link.is-active::after{
    content:"";
    position:absolute;left:12px;right:12px;bottom:1px;height:2px;border-radius:2px;
    background:linear-gradient(90deg,var(--star),var(--nebula));
  }
  .nav-right{display:flex;align-items:center;gap:12px}
  .nav-toggle{
    display:none;
    width:40px;height:40px;border-radius:10px;
    border:1px solid var(--line);
    align-items:center;justify-content:center;
    background:rgba(255,255,255,.03);
  }
  .nav-toggle span{display:block;width:16px;height:1.5px;background:var(--text-1);border-radius:2px;position:relative}
  .nav-toggle span::before,.nav-toggle span::after{
    content:"";position:absolute;left:0;width:16px;height:1.5px;background:var(--text-1);border-radius:2px;
  }
  .nav-toggle span::before{top:-5px}
  .nav-toggle span::after{top:5px}

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;align-items:center;justify-content:center;gap:8px;
    padding:11px 22px;
    border-radius:var(--r-btn);
    font-size:15.5px;
    font-weight:500;
    white-space:nowrap;
    transition:transform .22s ease, filter .22s ease, box-shadow .22s ease, background .22s ease, border-color .22s ease, color .22s ease;
  }
  .btn-primary{
    background:linear-gradient(135deg,#4FE3C1 0%,#39B9D8 100%);
    color:#04231E;
    box-shadow:var(--glow);
  }
  .btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px);box-shadow:0 0 0 1px rgba(79,227,193,.5),0 16px 38px -10px rgba(79,227,193,.62)}
  .btn-primary:active{transform:translateY(0)}
  .btn-outline{
    background:transparent;
    color:var(--star);
    border:1px solid rgba(79,227,193,.45);
  }
  .btn-outline:hover{background:rgba(79,227,193,.12);transform:translateY(-2px)}
  .btn-outline:active{transform:translateY(0)}
  .btn-sm{padding:9px 16px;font-size:14.5px}

  .text-link{
    display:inline-flex;align-items:center;gap:6px;
    color:var(--star);font-size:15px;
    border-bottom:1px solid transparent;
    transition:border-color .2s ease, color .2s ease;
  }
  .text-link:hover{border-color:var(--star)}
  .section-link{color:var(--text-3);font-size:14.5px;transition:color .2s ease}
  .section-link:hover{color:var(--star)}

  /* ---------- 面包屑 ---------- */
  .breadcrumb{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-3);margin-bottom:22px}
  .breadcrumb a{color:var(--text-3);transition:color .2s ease}
  .breadcrumb a:hover{color:var(--star)}
  .breadcrumb .current{color:var(--text-2)}

  /* ---------- Hero ---------- */
  .hero{
    padding-top:calc(var(--nav-h) + 64px);
    padding-bottom:72px;
  }
  .hero-inner{display:grid;grid-template-columns:1.05fr .95fr;gap:56px;align-items:center}
  .pill{
    display:inline-flex;align-items:center;gap:6px;
    padding:5px 14px;border-radius:999px;
    background:rgba(79,227,193,.12);
    color:var(--star);
    font-size:14px;
    line-height:1.6;
  }
  .hero h1{
    font-size:52px;
    line-height:1.15;
    letter-spacing:-.01em;
    margin:18px 0 20px;
  }
  .hero-sub{font-size:18px;color:var(--text-2);max-width:560px;line-height:1.85}
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-top:30px}
  .hero-media{position:relative}
  .hero-media img{
    width:100%;
    aspect-ratio:4/3;
    object-fit:cover;
    border-radius:var(--r-img);
    border:1px solid rgba(79,227,193,.35);
    box-shadow:0 0 0 1px rgba(255,255,255,.06), 0 26px 60px -22px rgba(0,0,0,.9);
  }
  .hero-media::after{
    content:"";
    position:absolute;inset:auto 18px -16px 18px;height:1px;
    background:linear-gradient(90deg,transparent,rgba(79,227,193,.5),transparent);
  }

  /* ---------- 统计条 ---------- */
  .stats-band{padding-bottom:8px}
  .stat-strip{
    display:grid;
    grid-template-columns:repeat(4,minmax(0,1fr));
    gap:0;
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-card);
    overflow:hidden;
  }
  .stat-item{padding:26px 24px;border-right:1px solid var(--line)}
  .stat-item:last-child{border-right:0}
  .stat-num{display:block;font-size:40px;font-weight:600;line-height:1.1;color:var(--star);letter-spacing:-.02em}
  .stat-item:nth-child(2) .stat-num{color:#7FE0D8}
  .stat-item:nth-child(3) .stat-num{color:var(--nebula)}
  .stat-item:nth-child(4) .stat-num{color:var(--gold)}
  .stat-label{display:block;margin-top:8px;font-size:14px;color:var(--text-3);line-height:1.6}
  .stats-note{margin-top:14px;font-size:13.5px;color:var(--text-3)}

  /* ---------- 板块标题 ---------- */
  .section-head{
    display:flex;align-items:flex-end;justify-content:space-between;gap:24px;
    margin-bottom:34px;
  }
  .section-head h2{font-size:34px;display:flex;align-items:center}
  .h2-bar{
    display:inline-block;width:4px;height:24px;border-radius:2px;
    background:linear-gradient(180deg,var(--star),var(--nebula));
    margin-right:14px;flex:0 0 auto;
  }
  .section-desc{margin-top:12px;color:var(--text-2);font-size:16px;max-width:680px}

  /* ---------- 筛选 pill ---------- */
  .filter-row{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:30px}
  .filter-pill{
    padding:8px 18px;border-radius:999px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.03);
    color:var(--text-2);
    font-size:14.5px;
    transition:all .2s ease;
  }
  .filter-pill:hover{color:#fff;border-color:rgba(79,227,193,.45)}
  .filter-pill.is-active{
    background:rgba(79,227,193,.12);
    border-color:rgba(79,227,193,.5);
    color:var(--star);
  }

  /* ---------- 案例墙 ---------- */
  .case-grid{display:grid;grid-template-columns:repeat(6,minmax(0,1fr));gap:20px}
  .case-card{
    grid-column:span 3;
    display:flex;flex-direction:column;
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-card);
    overflow:hidden;
    transition:transform .28s ease, border-color .28s ease, box-shadow .28s ease;
  }
  .case-card:hover{
    transform:translateY(-4px);
    border-color:rgba(79,227,193,.55);
    box-shadow:0 16px 38px -14px rgba(3,5,14,.85);
  }
  .case-large{grid-row:span 2}
  .case-cover{overflow:hidden}
  .case-cover img{
    width:100%;height:100%;min-height:240px;
    object-fit:cover;border-radius:0;
    transition:transform .4s ease;
  }
  .case-large .case-cover{flex:1}
  .case-card:hover .case-cover img{transform:scale(1.03)}
  .case-thumb{overflow:hidden}
  .case-thumb img{width:100%;height:150px;object-fit:cover;border-radius:0;transition:transform .4s ease}
  .case-card:hover .case-thumb img{transform:scale(1.03)}
  .case-body{padding:22px 22px 24px;display:flex;flex-direction:column;gap:12px}
  .case-tag{
    align-self:flex-start;
    padding:4px 12px;border-radius:999px;
    background:rgba(140,107,255,.14);
    color:#B8A4FF;
    font-size:13px;line-height:1.7;
  }
  .case-body h3{font-size:20px;line-height:1.45}
  .case-large .case-body h3{font-size:22px}
  .case-body p{font-size:15.5px;color:var(--text-2);line-height:1.8}
  .case-metrics{display:flex;gap:32px;margin-top:6px;padding-top:16px;border-top:1px solid var(--line)}
  .case-stat{
    margin-top:4px;padding-top:14px;border-top:1px solid var(--line);
    display:flex;align-items:baseline;gap:10px;flex-wrap:wrap;
  }
  .metric-num{font-size:26px;font-weight:600;color:var(--gold);letter-spacing:-.01em;line-height:1.2}
  .metric-label{font-size:13.5px;color:var(--text-3)}
  .data-note{margin-top:22px;font-size:13.5px;color:var(--text-3)}

  /* ---------- 拆分图文 ---------- */
  .split{
    display:grid;grid-template-columns:1fr 1fr;gap:56px;align-items:center;
    padding:36px 0;
  }
  .split + .split{border-top:1px solid var(--line)}
  .split-reverse .split-copy{order:2}
  .split-reverse .split-media{order:1}
  .step-num{
    display:block;font-size:46px;font-weight:600;line-height:1;
    color:rgba(167,175,206,.28);
    font-variant-numeric:tabular-nums;
    margin-bottom:14px;
  }
  .split-copy h3{font-size:22px;margin-bottom:14px}
  .split-copy > p{color:var(--text-2);font-size:16px}
  .dot-list{margin-top:20px;display:flex;flex-direction:column;gap:12px}
  .dot-list li{position:relative;padding-left:20px;font-size:15.5px;color:var(--text-2)}
  .dot-list li::before{
    content:"";position:absolute;left:0;top:12px;
    width:7px;height:7px;border-radius:50%;
    background:var(--star);
    box-shadow:0 0 0 3px rgba(79,227,193,.14);
  }
  .split-copy .text-link{margin-top:22px}
  .split-media img{
    width:100%;aspect-ratio:16/11;object-fit:cover;
    border:1px solid var(--line-strong);
    border-radius:var(--r-img);
    box-shadow:0 20px 46px -22px rgba(0,0,0,.9);
    transition:transform .4s ease;
  }
  .split-media img:hover{transform:scale(1.02)}

  /* ---------- 引述 ---------- */
  .quote-section{padding-top:0}
  .quote-card{
    margin:0;
    padding:38px 40px;
    background:var(--panel);
    border:1px solid var(--line);
    border-left:3px solid var(--star);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-card);
  }
  .quote-card blockquote{
    margin:0;
    font-size:20px;line-height:1.85;color:var(--text-1);
  }
  .quote-card figcaption{margin-top:18px;font-size:14.5px;color:var(--text-3)}

  /* ---------- FAQ ---------- */
  .faq-list{display:flex;flex-direction:column;gap:14px;max-width:900px}
  .faq-item{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    overflow:hidden;
    transition:border-color .25s ease;
  }
  .faq-item.is-open{border-color:rgba(79,227,193,.45)}
  .faq-q{
    width:100%;
    display:flex;align-items:center;justify-content:space-between;gap:20px;
    padding:20px 24px;
    text-align:left;
    font-size:17px;
    color:var(--text-1);
    transition:color .2s ease;
  }
  .faq-q:hover{color:var(--star)}
  .faq-icon{
    flex:0 0 auto;
    width:24px;height:24px;border-radius:50%;
    display:inline-flex;align-items:center;justify-content:center;
    border:1px solid rgba(79,227,193,.4);
    color:var(--star);font-size:16px;line-height:1;
    transition:transform .28s ease, background .28s ease;
  }
  .faq-item.is-open .faq-icon{transform:rotate(45deg);background:rgba(79,227,193,.14)}
  .faq-a{max-height:0;overflow:hidden;transition:max-height .32s ease}
  .faq-a p{padding:0 24px 22px;color:var(--text-2);font-size:15.5px;line-height:1.85;max-width:780px}

  /* ---------- CTA ---------- */
  .cta-band{
    padding:88px 0;
    background-image:radial-gradient(120% 100% at 50% 0%, #12142E 0%, #06070F 65%);
    border-top:1px solid var(--line);
    border-bottom:1px solid var(--line);
  }
  .cta-inner{max-width:760px;text-align:center;margin:0 auto}
  .cta-inner h2{font-size:32px}
  .cta-inner p{margin-top:16px;color:var(--text-2);font-size:16.5px}
  .cta-actions{display:flex;justify-content:center;flex-wrap:wrap;gap:14px;margin-top:30px}

  /* ---------- 页脚 ---------- */
  .site-footer{
    position:relative;
    padding-top:68px;
    background:var(--bg);
    border-top:1px solid var(--line);
  }
  .site-footer::before{
    content:"";position:absolute;top:0;left:0;right:0;height:120px;pointer-events:none;
    background-image:
      radial-gradient(1.5px 1.5px at 14% 30%, rgba(255,255,255,.55), transparent 60%),
      radial-gradient(1px 1px at 37% 58%, rgba(79,227,193,.5), transparent 60%),
      radial-gradient(1.5px 1.5px at 62% 24%, rgba(255,255,255,.45), transparent 60%),
      radial-gradient(1px 1px at 79% 62%, rgba(140,107,255,.5), transparent 60%),
      radial-gradient(1.5px 1.5px at 92% 34%, rgba(255,255,255,.4), transparent 60%);
    background-repeat:no-repeat;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.1fr;
    gap:44px;
    padding-bottom:52px;
  }
  .footer-brand p{margin-top:14px;font-size:14.5px;color:var(--text-3);line-height:1.85;max-width:320px}
  .footer-col h4{font-size:15.5px;margin-bottom:16px;color:var(--text-1)}
  .footer-col ul{display:flex;flex-direction:column;gap:11px}
  .footer-col a{font-size:14.5px;color:var(--text-2);transition:color .2s ease}
  .footer-col a:hover{color:var(--star)}
  .footer-bottom{
    display:flex;align-items:center;justify-content:space-between;gap:20px;flex-wrap:wrap;
    padding:22px 0 34px;
    border-top:1px solid var(--line);
    font-size:13.5px;color:var(--text-3);
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1279px){
    .hero h1{font-size:46px}
  }
  @media (max-width:1023px){
    .nav-toggle{display:inline-flex}
    .nav-links{
      position:fixed;
      top:var(--nav-h);
      left:0;right:0;
      display:none;
      flex-direction:column;
      align-items:stretch;
      gap:6px;
      padding:20px;
      max-height:calc(100vh - var(--nav-h));
      overflow-y:auto;
      background:rgba(6,7,15,.96);
      backdrop-filter:blur(18px);
      -webkit-backdrop-filter:blur(18px);
      border-bottom:1px solid var(--line);
    }
    .nav-links.is-open{display:flex}
    .nav-link{font-size:19px;padding:13px 12px}
    .nav-link.is-active::after{left:12px;right:auto;width:26px;bottom:6px}
    .nav-cta{display:none}
    .hero{padding-top:calc(var(--nav-h) + 44px);padding-bottom:56px}
    .hero-inner{grid-template-columns:1fr;gap:38px}
    .hero h1{font-size:40px}
    .hero-sub{font-size:17px}
    .hero-media img{aspect-ratio:16/10}
    .section-head{flex-direction:column;align-items:flex-start}
    .section-head h2{font-size:28px}
    .stat-strip{grid-template-columns:repeat(2,minmax(0,1fr))}
    .stat-item:nth-child(2){border-right:0}
    .stat-item:nth-child(1),.stat-item:nth-child(2){border-bottom:1px solid var(--line)}
    .stat-num{font-size:34px}
    .case-grid{grid-template-columns:repeat(2,minmax(0,1fr))}
    .case-card,.case-large{grid-column:span 1;grid-row:auto}
    .case-large .case-cover img{min-height:200px}
    .split{grid-template-columns:1fr;gap:30px;padding:30px 0}
    .split-reverse .split-copy{order:1}
    .split-reverse .split-media{order:2}
    .step-num{font-size:36px}
    .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
    .footer-brand{grid-column:span 2}
    .footer-brand p{max-width:none}
    .cta-band{padding:64px 0}
    .cta-inner h2{font-size:26px}
  }
  @media (max-width:639px){
    body{font-size:16px}
    .hero h1{font-size:31px}
    .hero-actions{gap:10px}
    .hero-actions .btn{flex:1 1 100%}
    .section-head h2{font-size:24px}
    .h2-bar{height:20px;margin-right:10px}
    .stat-strip{grid-template-columns:1fr}
    .stat-item{border-right:0;border-bottom:1px solid var(--line)}
    .stat-item:last-child{border-bottom:0}
    .case-grid{grid-template-columns:1fr}
    .case-body h3,.case-large .case-body h3{font-size:18px}
    .case-metrics{gap:22px}
    .metric-num{font-size:22px}
    .quote-card{padding:26px 22px}
    .quote-card blockquote{font-size:17.5px}
    .faq-q{font-size:16px;padding:17px 18px}
    .faq-a p{padding:0 18px 20px}
    .footer-grid{grid-template-columns:1fr}
    .footer-brand{grid-column:span 1}
    .footer-bottom{flex-direction:column;align-items:flex-start;gap:8px}
    .cta-actions .btn{width:100%}
  }
  @media (prefers-reduced-motion: reduce){
    *,*::before,*::after{transition:none !important;animation:none !important}
    html{scroll-behavior:auto}
  }

/* roulang page: category5 */
:root{
    --bg:#06070F;
    --panel:#0C0E1C;
    --panel-2:#141834;
    --line:rgba(255,255,255,.08);
    --line-2:rgba(255,255,255,.16);
    --primary:#4FE3C1;
    --primary-deep:#2FB7A0;
    --violet:#8C6BFF;
    --gold:#F2C879;
    --text-1:#E9EDFB;
    --text-2:#A7AFCE;
    --text-3:#6C7595;
    --danger:#FF7A70;
    --r-card:16px;
    --r-img:12px;
    --r-btn:10px;
    --shadow-card:0 8px 24px rgba(3,5,14,.45);
    --shadow-glow:0 0 0 1px rgba(79,227,193,.35),0 10px 30px -8px rgba(79,227,193,.5);
    --maxw:1200px;
    --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,sans-serif;
  }

  *,*::before,*::after{box-sizing:border-box;}
  html{-webkit-text-size-adjust:100%;}
  body{
    margin:0;
    background:var(--bg);
    color:var(--text-1);
    font-family:var(--font-cn);
    font-size:16.5px;
    line-height:1.8;
    font-weight:400;
    -webkit-font-smoothing:antialiased;
    overflow-x:hidden;
  }
  body::before{
    content:"";
    position:fixed;
    inset:0;
    pointer-events:none;
    z-index:0;
    background:
      radial-gradient(900px 520px at 82% -6%, rgba(140,107,255,.14), transparent 70%),
      radial-gradient(760px 480px at 6% 12%, rgba(79,227,193,.10), transparent 72%);
  }
  img{max-width:100%;display:block;}
  a{color:inherit;text-decoration:none;}
  button{font-family:inherit;}
  h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em;color:var(--text-1);}
  p{margin:0;}
  ul{margin:0;padding:0;list-style:none;}
  input,textarea{font-family:inherit;font-size:15.5px;color:var(--text-1);}
  .num{font-variant-numeric:tabular-nums;font-feature-settings:"tnum";}

  a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{
    outline:2px solid var(--primary);
    outline-offset:2px;
    box-shadow:0 0 0 3px rgba(79,227,193,.22);
    border-radius:6px;
  }

  .container-x{
    width:100%;
    max-width:var(--maxw);
    margin:0 auto;
    padding:0 40px;
    position:relative;
    z-index:1;
  }
  @media (min-width:1440px){ .container-x{max-width:1280px;} }

  /* ---------- 按钮 ---------- */
  .btn{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    gap:8px;
    padding:12px 24px;
    border-radius:var(--r-btn);
    font-size:15.5px;
    font-weight:600;
    border:1px solid transparent;
    cursor:pointer;
    transition:transform .25s ease,box-shadow .25s ease,background .25s ease,border-color .25s ease,color .25s ease;
    white-space:nowrap;
  }
  .btn-primary{
    background:linear-gradient(135deg,#4FE3C1 0%,#39B9D8 100%);
    color:#04140F;
    box-shadow:var(--shadow-glow);
  }
  .btn-primary:hover{
    filter:brightness(1.08);
    transform:translateY(-2px);
    box-shadow:0 0 0 1px rgba(79,227,193,.5),0 16px 38px -8px rgba(79,227,193,.62);
  }
  .btn-primary:active{transform:translateY(0);}
  .btn-secondary{
    background:transparent;
    color:var(--primary);
    border-color:rgba(79,227,193,.5);
  }
  .btn-secondary:hover{
    background:rgba(79,227,193,.12);
    transform:translateY(-2px);
  }
  .btn-secondary:active{transform:translateY(0);}
  .btn-ghost{
    background:transparent;
    color:var(--text-2);
    padding:8px 4px;
    border-radius:0;
    position:relative;
  }
  .btn-ghost::after{
    content:"";
    position:absolute;
    left:4px;right:4px;bottom:2px;
    height:1px;
    background:linear-gradient(90deg,var(--primary),var(--violet));
    transform:scaleX(0);
    transform-origin:left;
    transition:transform .3s ease;
  }
  .btn-ghost:hover{color:var(--text-1);}
  .btn-ghost:hover::after{transform:scaleX(1);}
  .btn[disabled]{opacity:.45;box-shadow:none;cursor:not-allowed;transform:none;}

  .text-link{
    font-size:14.5px;
    color:var(--text-3);
    display:inline-flex;
    align-items:center;
    gap:6px;
    transition:color .25s ease,gap .25s ease;
  }
  .text-link:hover{color:var(--primary);gap:10px;}

  /* ---------- 导航 ---------- */
  .site-header{
    position:fixed;
    top:0;left:0;right:0;
    z-index:70;
    background:rgba(6,7,15,.52);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);
    border-bottom:1px solid rgba(255,255,255,.06);
    transition:background .3s ease,box-shadow .3s ease,border-color .3s ease;
  }
  .site-header.scrolled{
    background:rgba(6,7,15,.93);
    border-bottom-color:var(--line);
    box-shadow:0 12px 34px rgba(3,5,14,.55);
  }
  .nav-inner{
    height:72px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:20px;
    transition:height .3s ease;
  }
  .site-header.scrolled .nav-inner{height:60px;}

  .brand{display:inline-flex;align-items:center;gap:10px;}
  .brand-mark{
    width:32px;height:32px;
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:10px;
    background:rgba(79,227,193,.12);
    border:1px solid rgba(79,227,193,.3);
    box-shadow:inset 0 1px 0 rgba(255,255,255,.08);
  }
  .brand-text{font-size:17px;font-weight:600;letter-spacing:.01em;color:var(--text-1);}

  .nav-links{display:flex;align-items:center;gap:2px;}
  .nav-link{
    position:relative;
    display:inline-block;
    padding:9px 13px;
    font-size:15px;
    color:var(--text-2);
    border-radius:8px;
    transition:color .25s ease,background .25s ease;
  }
  .nav-link:hover{color:var(--text-1);background:rgba(255,255,255,.05);}
  .nav-link.is-active{color:var(--text-1);}
  .nav-link.is-active::after{
    content:"";
    position:absolute;
    left:13px;right:13px;bottom:-3px;
    height:2px;
    border-radius:2px;
    background:linear-gradient(90deg,var(--primary),var(--violet));
  }
  .nav-actions{display:flex;align-items:center;gap:10px;}
  .icon-btn{
    width:38px;height:38px;
    display:inline-flex;align-items:center;justify-content:center;
    border-radius:10px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.04);
    color:var(--text-2);
    cursor:pointer;
    transition:color .25s ease,border-color .25s ease,background .25s ease;
  }
  .icon-btn:hover{color:var(--primary);border-color:rgba(79,227,193,.45);background:rgba(79,227,193,.1);}
  .nav-cta{padding:10px 18px;font-size:15px;}
  .nav-toggle{display:none;}

  .nav-drawer{
    position:fixed;
    inset:0;
    z-index:65;
    background:rgba(6,7,15,.96);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    padding:96px 24px 32px;
    display:none;
    flex-direction:column;
    gap:6px;
    overflow-y:auto;
  }
  .nav-drawer.open{display:flex;}
  .nav-drawer a{
    font-size:20px;
    padding:14px 6px;
    color:var(--text-2);
    border-bottom:1px solid rgba(255,255,255,.06);
  }
  .nav-drawer a.is-active{color:var(--primary);}
  .drawer-foot{margin-top:auto;padding-top:24px;}

  @media (max-width:1023px){
    .nav-links,.nav-actions .nav-cta,.nav-actions .icon-btn.search{display:none;}
    .nav-toggle{display:inline-flex;}
  }
  @media (max-width:640px){
    .container-x{padding:0 20px;}
  }

  /* ---------- Hero ---------- */
  .page-hero{
    position:relative;
    padding:150px 0 76px;
    overflow:hidden;
    background:
      linear-gradient(180deg,rgba(6,7,15,.72) 0%,rgba(6,7,15,.88) 58%,var(--bg) 100%),
      url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
    border-bottom:1px solid var(--line);
  }
  .page-hero::before{
    content:"";
    position:absolute;inset:0;
    background-image:
      radial-gradient(1.5px 1.5px at 12% 26%,rgba(255,255,255,.55),transparent),
      radial-gradient(1px 1px at 28% 68%,rgba(255,255,255,.42),transparent),
      radial-gradient(1.5px 1.5px at 44% 18%,rgba(255,255,255,.5),transparent),
      radial-gradient(1px 1px at 62% 52%,rgba(255,255,255,.36),transparent),
      radial-gradient(1.5px 1.5px at 76% 30%,rgba(255,255,255,.5),transparent),
      radial-gradient(1px 1px at 88% 74%,rgba(255,255,255,.4),transparent),
      radial-gradient(1px 1px at 34% 88%,rgba(255,255,255,.32),transparent),
      radial-gradient(1.5px 1.5px at 68% 86%,rgba(255,255,255,.42),transparent);
    background-repeat:no-repeat;
    opacity:.85;
    pointer-events:none;
  }
  .page-hero::after{
    content:"";
    position:absolute;
    inset:0;
    background:radial-gradient(760px 420px at 78% 12%,rgba(140,107,255,.20),transparent 70%);
    pointer-events:none;
  }
  .crumb{
    font-size:14px;
    color:var(--text-3);
    display:flex;
    align-items:center;
    gap:8px;
    position:relative;
    z-index:2;
    margin-bottom:22px;
    flex-wrap:wrap;
  }
  .crumb a{color:var(--text-3);transition:color .25s ease;}
  .crumb a:hover{color:var(--primary);}
  .crumb .sep{color:#3D445E;}

  .hero-grid{
    display:grid;
    grid-template-columns:minmax(0,1.15fr) minmax(0,.85fr);
    gap:56px;
    align-items:center;
    position:relative;
    z-index:2;
  }
  .eyebrow{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:13.5px;
    color:var(--primary);
    background:rgba(79,227,193,.12);
    border:1px solid rgba(79,227,193,.26);
    border-radius:999px;
    padding:6px 14px;
    margin-bottom:22px;
  }
  .page-hero h1{
    font-size:52px;
    line-height:1.15;
    letter-spacing:-.01em;
    margin-bottom:20px;
  }
  .page-hero h1 em{font-style:normal;color:var(--primary);}
  .hero-sub{
    font-size:18px;
    line-height:1.75;
    color:var(--text-2);
    max-width:560px;
    margin-bottom:32px;
  }
  .hero-actions{display:flex;flex-wrap:wrap;gap:14px;align-items:center;margin-bottom:34px;}
  .hero-metrics{
    display:flex;
    align-items:center;
    gap:22px;
    flex-wrap:wrap;
    font-size:14px;
    color:var(--text-3);
  }
  .hero-metrics .metric b{
    display:block;
    font-size:22px;
    font-weight:600;
    color:var(--text-1);
    line-height:1.3;
  }
  .hero-metrics .divider{width:1px;height:28px;background:var(--line-2);}

  .glass-panel{
    background:rgba(20,24,52,.62);
    border:1px solid rgba(255,255,255,.12);
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
    padding:26px;
  }
  .panel-media{
    border-radius:var(--r-img);
    border:1px solid rgba(255,255,255,.14);
    outline:12px solid rgba(79,227,193,.06);
    overflow:hidden;
    margin-bottom:20px;
  }
  .panel-media img{width:100%;aspect-ratio:16/10;object-fit:cover;}
  .panel-row{
    display:flex;
    align-items:center;
    justify-content:space-between;
    padding:11px 0;
    border-bottom:1px dashed rgba(255,255,255,.08);
    font-size:14.5px;
    color:var(--text-2);
  }
  .panel-row:last-child{border-bottom:0;}
  .panel-row span:last-child{color:var(--text-1);font-weight:600;}

  /* ---------- 通用板块 ---------- */
  .section{padding:96px 0;position:relative;}
  .section.tight{padding:72px 0;}
  .section-head{
    display:flex;
    align-items:flex-end;
    justify-content:space-between;
    gap:24px;
    margin-bottom:44px;
    flex-wrap:wrap;
  }
  .sec-title{
    position:relative;
    padding-left:18px;
    font-size:34px;
    line-height:1.25;
  }
  .sec-title::before{
    content:"";
    position:absolute;
    left:0;top:7px;bottom:7px;
    width:3px;
    border-radius:2px;
    background:linear-gradient(180deg,var(--primary),var(--violet));
  }
  .sec-desc{font-size:16px;color:var(--text-2);margin-top:14px;max-width:640px;}

  .card{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.04);
    padding:26px;
    transition:transform .3s ease,border-color .3s ease,box-shadow .3s ease;
  }
  .card:hover{
    transform:translateY(-4px);
    border-color:rgba(79,227,193,.42);
    box-shadow:0 16px 40px rgba(3,5,14,.6),0 0 0 1px rgba(79,227,193,.18);
  }

  .badge{
    display:inline-flex;
    align-items:center;
    gap:6px;
    font-size:13.5px;
    padding:5px 12px;
    border-radius:999px;
    background:rgba(79,227,193,.12);
    color:var(--primary);
    border:1px solid rgba(79,227,193,.22);
  }
  .badge-gold{
    background:rgba(242,200,121,.16);
    color:var(--gold);
    border-color:rgba(242,200,121,.34);
  }

  /* ---------- 品牌叙述 ---------- */
  .story-grid{
    display:grid;
    grid-template-columns:minmax(0,1.05fr) minmax(0,.95fr);
    gap:56px;
    align-items:center;
  }
  .story-copy p{color:var(--text-2);margin-bottom:18px;font-size:16.5px;}
  .story-points{display:grid;gap:14px;margin-top:26px;}
  .story-points li{
    display:flex;
    gap:12px;
    align-items:flex-start;
    font-size:15.5px;
    color:var(--text-2);
  }
  .dot{
    flex:0 0 auto;
    width:7px;height:7px;
    border-radius:50%;
    margin-top:11px;
    background:var(--primary);
    box-shadow:0 0 0 4px rgba(79,227,193,.14);
  }
  .story-media{
    position:relative;
    border-radius:var(--r-card);
    overflow:hidden;
    border:1px solid rgba(255,255,255,.12);
  }
  .story-media img{width:100%;aspect-ratio:4/3;object-fit:cover;}
  .story-media .media-tag{
    position:absolute;
    left:18px;bottom:18px;
    background:rgba(6,7,15,.78);
    border:1px solid var(--line-2);
    border-radius:10px;
    padding:10px 14px;
    font-size:14px;
    color:var(--text-2);
    backdrop-filter:blur(8px);
  }
  .story-media .media-tag b{display:block;color:var(--text-1);font-size:15px;}

  /* ---------- 时间线 ---------- */
  .timeline{position:relative;margin-top:16px;padding-left:34px;}
  .timeline::before{
    content:"";
    position:absolute;
    left:9px;top:8px;bottom:8px;
    width:2px;
    border-radius:2px;
    background:linear-gradient(180deg,rgba(79,227,193,.9),rgba(140,107,255,.55),rgba(79,227,193,.12));
  }
  .tl-item{position:relative;padding:0 0 38px 0;}
  .tl-item:last-child{padding-bottom:0;}
  .tl-item::before{
    content:"";
    position:absolute;
    left:-31px;top:7px;
    width:12px;height:12px;
    border-radius:50%;
    background:var(--bg);
    border:2px solid var(--primary);
    box-shadow:0 0 0 4px rgba(79,227,193,.12);
  }
  .tl-item .tl-phase{
    font-size:13.5px;
    color:var(--primary);
    letter-spacing:.04em;
    margin-bottom:6px;
    display:block;
  }
  .tl-item h3{font-size:20px;margin-bottom:10px;}
  .tl-item p{color:var(--text-2);font-size:15.5px;max-width:760px;}

  /* ---------- 团队卡 ---------- */
  .team-grid{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:24px;
  }
  .team-card{padding:0;overflow:hidden;display:flex;flex-direction:column;}
  .team-card .cover{position:relative;aspect-ratio:16/9;overflow:hidden;}
  .team-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
  .team-card:hover .cover img{transform:scale(1.03);}
  .team-card .cover::after{
    content:"";
    position:absolute;inset:0;
    background:linear-gradient(180deg,rgba(6,7,15,.05) 40%,rgba(12,14,28,.92) 100%);
  }
  .team-card .body{padding:22px 24px 26px;display:flex;flex-direction:column;gap:12px;flex:1;}
  .team-card h3{font-size:20px;}
  .team-card p{font-size:15.5px;color:var(--text-2);}
  .team-card .tag-row{display:flex;flex-wrap:wrap;gap:8px;margin-top:auto;padding-top:6px;}

  /* ---------- 联系 ---------- */
  .contact-grid{
    display:grid;
    grid-template-columns:minmax(0,1.4fr) minmax(0,1fr);
    gap:28px;
    align-items:start;
  }
  .form-card{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:var(--r-card);
    box-shadow:var(--shadow-card);
    padding:34px;
  }
  .field{margin-bottom:20px;}
  .field label{
    display:block;
    font-size:13px;
    color:var(--text-3);
    margin-bottom:8px;
    letter-spacing:.02em;
  }
  .field input,.field textarea{
    width:100%;
    background:rgba(255,255,255,.04);
    border:1px solid var(--line-2);
    border-radius:var(--r-btn);
    padding:13px 15px;
    transition:border-color .25s ease,box-shadow .25s ease,background .25s ease;
  }
  .field textarea{min-height:132px;resize:vertical;line-height:1.7;}
  .field input::placeholder,.field textarea::placeholder{color:#5A6280;}
  .field input:focus,.field textarea:focus{
    outline:none;
    border-color:rgba(79,227,193,.6);
    background:rgba(79,227,193,.06);
    box-shadow:0 0 0 3px rgba(79,227,193,.16);
  }
  .field.error input,.field.error textarea{border-color:var(--danger);}
  .field .err-msg{display:none;font-size:13px;color:var(--danger);margin-top:7px;}
  .field.error .err-msg{display:block;}
  .form-note{
    display:none;
    margin-top:16px;
    font-size:14.5px;
    color:var(--primary);
    background:rgba(79,227,193,.1);
    border:1px solid rgba(79,227,193,.28);
    border-radius:var(--r-btn);
    padding:12px 15px;
  }
  .form-note.show{display:block;}
  .form-tip{font-size:13.5px;color:var(--text-3);margin-top:14px;}

  .info-card{
    background:linear-gradient(180deg,rgba(20,24,52,.92),rgba(12,14,28,.96));
    border:1px solid rgba(255,255,255,.12);
    border-radius:var(--r-card);
    padding:30px;
    box-shadow:var(--shadow-card),inset 0 1px 0 rgba(255,255,255,.06);
  }
  .info-card h3{font-size:20px;margin-bottom:8px;}
  .info-card > p{font-size:15px;color:var(--text-2);margin-bottom:22px;}
  .info-list{display:grid;gap:0;}
  .info-list li{
    padding:15px 0;
    border-bottom:1px dashed rgba(255,255,255,.09);
    display:flex;
    gap:12px;
    align-items:flex-start;
  }
  .info-list li:last-child{border-bottom:0;}
  .info-list .k{font-size:14px;color:var(--text-3);min-width:78px;}
  .info-list .v{font-size:15px;color:var(--text-1);}
  .info-list .v a{color:var(--primary);}
  .info-list .v small{display:block;color:var(--text-3);font-size:13.5px;margin-top:3px;}

  /* ---------- FAQ ---------- */
  .faq-list{display:grid;gap:14px;max-width:900px;}
  .faq-item{
    background:var(--panel);
    border:1px solid var(--line);
    border-radius:14px;
    transition:border-color .3s ease,background .3s ease;
    overflow:hidden;
  }
  .faq-item.open{border-color:rgba(79,227,193,.42);background:rgba(20,24,52,.7);}
  .faq-q{
    width:100%;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
    text-align:left;
    background:none;
    border:0;
    color:var(--text-1);
    font-size:17px;
    font-weight:600;
    padding:20px 22px;
    cursor:pointer;
  }
  .faq-icon{
    flex:0 0 auto;
    width:24px;height:24px;
    position:relative;
    transition:transform .3s ease;
  }
  .faq-icon::before,.faq-icon::after{
    content:"";
    position:absolute;
    background:var(--primary);
    border-radius:2px;
  }
  .faq-icon::before{left:11px;top:4px;width:2px;height:16px;}
  .faq-icon::after{top:11px;left:4px;height:2px;width:16px;}
  .faq-item.open .faq-icon{transform:rotate(45deg);}
  .faq-a{
    max-height:0;
    overflow:hidden;
    transition:max-height .35s ease;
  }
  .faq-a p{
    padding:0 22px 22px;
    font-size:15px;
    color:var(--text-2);
    line-height:1.85;
  }

  /* ---------- CTA 带 ---------- */
  .cta-band{
    position:relative;
    overflow:hidden;
    border-radius:var(--r-card);
    border:1px solid rgba(79,227,193,.24);
    background:
      linear-gradient(180deg,rgba(18,20,46,.9),rgba(6,7,15,.96)),
      url("/assets/images/backpic/back-2.png") center/cover no-repeat;
    padding:60px 56px;
    box-shadow:0 20px 50px rgba(3,5,14,.6);
  }
  .cta-band::before{
    content:"";
    position:absolute;inset:0;
    background-image:
      radial-gradient(1.5px 1.5px at 14% 34%,rgba(255,255,255,.5),transparent),
      radial-gradient(1px 1px at 32% 72%,rgba(255,255,255,.38),transparent),
      radial-gradient(1.5px 1.5px at 54% 24%,rgba(255,255,255,.46),transparent),
      radial-gradient(1px 1px at 72% 62%,rgba(255,255,255,.36),transparent),
      radial-gradient(1.5px 1.5px at 88% 38%,rgba(255,255,255,.46),transparent),
      radial-gradient(1px 1px at 46% 86%,rgba(255,255,255,.3),transparent);
    background-repeat:no-repeat;
    pointer-events:none;
  }
  .cta-inner{position:relative;z-index:2;display:flex;align-items:center;justify-content:space-between;gap:36px;flex-wrap:wrap;}
  .cta-inner h2{font-size:32px;margin-bottom:12px;}
  .cta-inner p{color:var(--text-2);font-size:16px;max-width:560px;}
  .cta-actions{display:flex;gap:14px;flex-wrap:wrap;}

  /* ---------- 页脚 ---------- */
  .site-footer{
    position:relative;
    margin-top:96px;
    border-top:1px solid var(--line);
    background:linear-gradient(180deg,rgba(12,14,28,.96),rgba(6,7,15,1));
    padding:64px 0 28px;
  }
  .site-footer::before{
    content:"";
    position:absolute;
    top:0;left:0;right:0;height:100px;
    background-image:
      radial-gradient(1px 1px at 10% 30%,rgba(255,255,255,.34),transparent),
      radial-gradient(1.5px 1.5px at 30% 60%,rgba(255,255,255,.3),transparent),
      radial-gradient(1px 1px at 55% 26%,rgba(255,255,255,.28),transparent),
      radial-gradient(1.5px 1.5px at 78% 58%,rgba(255,255,255,.3),transparent),
      radial-gradient(1px 1px at 92% 34%,rgba(255,255,255,.26),transparent);
    background-repeat:no-repeat;
    pointer-events:none;
  }
  .footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr 1.1fr;
    gap:40px;
    padding-bottom:42px;
    border-bottom:1px solid var(--line);
    position:relative;
    z-index:1;
  }
  .footer-brand p{font-size:14.5px;color:var(--text-3);margin-top:12px;line-height:1.75;}
  .footer-brand .brand{margin-bottom:6px;}
  .footer-col h4{font-size:15px;margin-bottom:16px;color:var(--text-1);}
  .footer-col ul{display:grid;gap:10px;}
  .footer-col a{font-size:14.5px;color:var(--text-3);transition:color .25s ease;}
  .footer-col a:hover{color:var(--primary);}
  .footer-bottom{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:16px;
    flex-wrap:wrap;
    padding-top:22px;
    font-size:13.5px;
    color:var(--text-3);
    position:relative;
    z-index:1;
  }

  /* ---------- 响应式 ---------- */
  @media (max-width:1024px){
    .page-hero{padding:130px 0 64px;}
    .page-hero h1{font-size:40px;}
    .hero-grid{grid-template-columns:1fr;gap:40px;}
    .story-grid{grid-template-columns:1fr;gap:36px;}
    .contact-grid{grid-template-columns:1fr;}
    .team-grid{grid-template-columns:repeat(2,minmax(0,1fr));}
    .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
    .section{padding:72px 0;}
    .sec-title{font-size:28px;}
    .cta-band{padding:46px 32px;}
  }
  @media (max-width:768px){
    body{font-size:16px;}
    .container-x{padding:0 24px;}
    .page-hero{padding:118px 0 56px;}
    .page-hero h1{font-size:34px;}
    .hero-sub{font-size:16.5px;}
    .sec-title{font-size:25px;}
    .section{padding:60px 0;}
    .section-head{margin-bottom:32px;}
    .team-grid{grid-template-columns:1fr;}
    .cta-inner h2{font-size:25px;}
    .form-card{padding:24px;}
    .info-card{padding:24px;}
  }
  @media (max-width:520px){
    .container-x{padding:0 20px;}
    .page-hero{padding:110px 0 48px;}
    .page-hero h1{font-size:30px;}
    .hero-actions{gap:10px;}
    .hero-actions .btn{width:100%;}
    .hero-metrics{gap:14px;}
    .hero-metrics .divider{display:none;}
    .cta-band{padding:34px 20px;}
    .cta-actions{width:100%;}
    .cta-actions .btn{width:100%;}
    .footer-grid{grid-template-columns:1fr;}
    .faq-q{font-size:16px;padding:17px 18px;}
    .faq-a p{padding:0 18px 18px;}
    .timeline{padding-left:26px;}
    .tl-item::before{left:-24px;width:10px;height:10px;}
  }

  @media (prefers-reduced-motion:reduce){
    *{transition:none!important;animation:none!important;}
  }

/* roulang page: category4 */
:root{
  --bg:#06070F;
  --bg-panel:#0C0E1C;
  --bg-raise:#141834;
  --primary:#4FE3C1;
  --primary-deep:#2FB7A0;
  --violet:#8C6BFF;
  --gold:#F2C879;
  --text-1:#E9EDFB;
  --text-2:#A7AFCE;
  --text-3:#6C7595;
  --line:rgba(255,255,255,.08);
  --line-strong:rgba(255,255,255,.16);
  --glass:rgba(12,14,28,.62);
  --r-card:16px;
  --r-img:12px;
  --r-btn:10px;
  --shadow-card:0 8px 24px rgba(3,5,14,.45);
  --shadow-glass:0 8px 24px rgba(3,5,14,.45), inset 0 1px 0 rgba(255,255,255,.06);
  --shadow-glow:0 0 0 1px rgba(79,227,193,.35), 0 10px 30px -8px rgba(79,227,193,.5);
  --font-cn:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei",system-ui,-apple-system,sans-serif;
  --font-num:Inter,system-ui,-apple-system,sans-serif;
}
*,*::before,*::after{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-cn);
  font-size:16.5px;
  line-height:1.8;
  color:var(--text-1);
  background-color:var(--bg);
  -webkit-font-smoothing:antialiased;
}
img{display:block;max-width:100%}
a{color:inherit;text-decoration:none}
button,input{font:inherit;color:inherit}
ul{list-style:none;margin:0;padding:0}
h1,h2,h3,h4{margin:0;font-weight:600;letter-spacing:-.01em;line-height:1.25}
p{margin:0}
::selection{background:rgba(79,227,193,.28)}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px;border-radius:6px}
.num{font-family:var(--font-num);font-variant-numeric:tabular-nums}

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

/* ---------- 导航 ---------- */
.site-header{
  position:fixed;top:0;left:0;right:0;z-index:60;
  height:72px;
  background:rgba(6,7,15,.55);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid transparent;
  transition:height .25s ease,background .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.site-header.is-scrolled{
  height:60px;
  background:rgba(6,7,15,.9);
  border-bottom-color:var(--line);
  box-shadow:0 14px 34px -22px rgba(0,0,0,.95);
}
.nav-inner{display:flex;align-items:center;justify-content:space-between;gap:24px;height:100%}
.brand{display:inline-flex;align-items:center;gap:9px;flex-shrink:0}
.brand-mark{
  display:inline-flex;align-items:center;justify-content:center;
  width:32px;height:32px;border-radius:9px;
  background:rgba(79,227,193,.1);
  border:1px solid rgba(79,227,193,.3);
  box-shadow:inset 0 1px 0 rgba(255,255,255,.06);
}
.brand-text{font-size:17px;font-weight:600;letter-spacing:.01em;color:var(--text-1)}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{
  position:relative;padding:6px 0;font-size:15px;color:var(--text-2);
  transition:color .2s ease;white-space:nowrap;
}
.nav-link:hover{color:var(--text-1)}
.nav-link.is-active{color:var(--text-1)}
.nav-link.is-active::after{
  content:"";position:absolute;left:0;right:0;bottom:-2px;height:2px;border-radius:2px;
  background:linear-gradient(90deg,var(--primary),var(--violet));
}
.nav-actions{display:flex;align-items:center;gap:14px}
.icon-btn{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;border-radius:10px;
  background:transparent;border:1px solid var(--line);
  color:var(--text-2);cursor:pointer;transition:.2s ease;
}
.icon-btn:hover{color:var(--primary);border-color:rgba(79,227,193,.45);background:rgba(79,227,193,.08)}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:10px;
  background:transparent;border:1px solid var(--line);cursor:pointer;
  flex-direction:column;align-items:center;justify-content:center;gap:5px;
}
.nav-toggle span{display:block;width:17px;height:1.5px;background:var(--text-1);border-radius:2px;transition:.25s ease}
.nav-toggle.is-open span:nth-child(1){transform:translateY(6.5px) rotate(45deg)}
.nav-toggle.is-open span:nth-child(2){opacity:0}
.nav-toggle.is-open span:nth-child(3){transform:translateY(-6.5px) rotate(-45deg)}
.nav-drawer{
  position:fixed;inset:0;z-index:55;
  display:flex;flex-direction:column;justify-content:center;gap:8px;
  padding:96px 28px 48px;
  background:rgba(6,7,15,.96);
  backdrop-filter:blur(18px);-webkit-backdrop-filter:blur(18px);
  transform:translateY(-100%);visibility:hidden;
  transition:transform .32s ease,visibility .32s ease;
}
.nav-drawer.is-open{transform:translateY(0);visibility:visible}
.nav-drawer a.d-link{
  font-size:20px;padding:14px 4px;color:var(--text-2);
  border-bottom:1px solid var(--line);
}
.nav-drawer a.d-link.is-active{color:var(--primary)}
.nav-drawer .d-cta{margin-top:26px}

/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:46px;padding:0 22px;border-radius:var(--r-btn);
  font-size:15.5px;font-weight:600;cursor:pointer;border:1px solid transparent;
  transition:transform .22s ease,filter .22s ease,background .22s ease,border-color .22s ease,box-shadow .22s ease;
  white-space:nowrap;
}
.btn-sm{height:38px;padding:0 16px;font-size:14.5px}
.btn-primary{
  background:linear-gradient(135deg,#4FE3C1,#39B9D8);
  color:#04140F;
  box-shadow:var(--shadow-glow);
}
.btn-primary:hover{filter:brightness(1.08);transform:translateY(-2px)}
.btn-primary:active{transform:translateY(0)}
.btn-ghost{
  background:transparent;border-color:rgba(79,227,193,.45);color:var(--primary);
}
.btn-ghost:hover{background:rgba(79,227,193,.12);transform:translateY(-2px)}
.btn-ghost:active{transform:translateY(0)}
.btn-disabled{opacity:.45;pointer-events:none}

/* ---------- 星点 ---------- */
.star-layer{
  position:absolute;inset:0;pointer-events:none;opacity:.6;
  background-image:
    radial-gradient(1.5px 1.5px at 24px 36px, rgba(255,255,255,.5) 50%, transparent 51%),
    radial-gradient(1px 1px at 148px 92px, rgba(255,255,255,.36) 50%, transparent 51%),
    radial-gradient(1.5px 1.5px at 228px 186px, rgba(255,255,255,.42) 50%, transparent 51%),
    radial-gradient(1px 1px at 312px 58px, rgba(255,255,255,.3) 50%, transparent 51%),
    radial-gradient(1.2px 1.2px at 84px 226px, rgba(255,255,255,.34) 50%, transparent 51%),
    radial-gradient(1px 1px at 372px 244px, rgba(255,255,255,.26) 50%, transparent 51%);
  background-size:420px 320px;
}

/* ---------- Hero ---------- */
.page-hero{
  position:relative;overflow:hidden;
  padding:142px 0 64px;
  background:radial-gradient(120% 100% at 50% 0%, #12142E 0%, #06070F 62%);
}
.page-hero .container-x{position:relative;z-index:2}
.breadcrumb{display:flex;align-items:center;gap:9px;font-size:14px;color:var(--text-3);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-3);transition:color .2s}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .current{color:var(--text-2)}
.page-hero h1{
  font-size:52px;line-height:1.15;letter-spacing:-.01em;max-width:900px;
}
.hero-sub{
  margin-top:20px;max-width:720px;
  font-size:18px;color:var(--text-2);line-height:1.85;
}
.search-box{
  margin-top:34px;max-width:760px;
  display:flex;align-items:center;gap:12px;
  padding:8px 8px 8px 18px;
  border-radius:16px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--line-strong);
  backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);
  box-shadow:0 12px 34px -22px rgba(0,0,0,.9), inset 0 1px 0 rgba(255,255,255,.05);
  transition:border-color .25s ease,box-shadow .25s ease;
}
.search-box:focus-within{
  border-color:rgba(79,227,193,.55);
  box-shadow:0 0 0 3px rgba(79,227,193,.16), inset 0 1px 0 rgba(255,255,255,.05);
}
.search-icon{display:inline-flex;color:var(--text-3);flex-shrink:0}
.search-box input{
  flex:1;min-width:0;height:46px;background:transparent;border:0;outline:none;
  font-size:15.5px;color:var(--text-1);
}
.search-box input::placeholder{color:var(--text-3)}
.btn-search{height:42px;padding:0 20px;font-size:15px;flex-shrink:0}
.quick-tags{display:flex;flex-wrap:wrap;align-items:center;gap:10px;margin-top:20px}
.quick-label{font-size:13.5px;color:var(--text-3)}
.tag{
  display:inline-flex;align-items:center;height:30px;padding:0 13px;
  border-radius:999px;font-size:13.5px;
  background:rgba(79,227,193,.12);color:var(--primary);
  border:1px solid rgba(79,227,193,.18);
  transition:.2s ease;
}
.tag:hover{background:rgba(79,227,193,.2);transform:translateY(-1px)}
.search-tip{
  margin-top:18px;font-size:14.5px;color:var(--text-2);
  opacity:0;transform:translateY(-4px);transition:.28s ease;
}
.search-tip.show{opacity:1;transform:translateY(0)}

/* ---------- 板块通用 ---------- */
.section{margin-bottom:88px;position:relative}
.section-head{margin-bottom:36px;max-width:760px}
.h2-bar{
  display:inline-block;width:3px;height:22px;border-radius:2px;
  background:linear-gradient(180deg,var(--primary),var(--violet));
  margin-right:14px;vertical-align:-3px;
}
.section-head h2{font-size:34px;display:flex;align-items:center}
.section-head p{margin-top:14px;font-size:16.5px;color:var(--text-2)}
.group-title{
  display:flex;align-items:center;gap:10px;
  font-size:20px;margin-bottom:18px;
}
.group-title .dot{
  width:8px;height:8px;border-radius:50%;flex-shrink:0;
  background:var(--primary);box-shadow:0 0 12px rgba(79,227,193,.7);
}

/* ---------- 分类卡 6 个 ---------- */
.cat-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:22px;
}
.cat-card{
  position:relative;display:flex;flex-direction:column;
  padding:26px 24px 22px;
  border-radius:var(--r-card);
  background:var(--bg-panel);
  border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:transform .25s ease,border-color .25s ease,box-shadow .25s ease;
}
.cat-card:hover{transform:translateY(-4px);border-color:rgba(79,227,193,.5);box-shadow:0 14px 34px -18px rgba(79,227,193,.35)}
.cat-icon{
  display:inline-flex;align-items:center;justify-content:center;
  width:44px;height:44px;border-radius:12px;
  background:rgba(140,107,255,.14);
  border:1px solid rgba(140,107,255,.26);
  color:var(--primary);margin-bottom:18px;
}
.cat-card:hover .cat-icon{background:rgba(79,227,193,.14);border-color:rgba(79,227,193,.34)}
.cat-card h3{font-size:19px;margin-bottom:9px}
.cat-card p{font-size:14.8px;color:var(--text-2);line-height:1.75;flex:1}
.cat-count{
  margin-top:18px;font-size:13.5px;color:var(--text-3);
  padding-top:14px;border-top:1px solid var(--line);
  font-family:var(--font-num);font-variant-numeric:tabular-nums;
}

/* ---------- 上手路径 ---------- */
.path-wrap{
  display:grid;grid-template-columns:1.05fr .95fr;gap:48px;align-items:center;
}
.path-list{display:flex;flex-direction:column;gap:20px}
.path-item{
  display:flex;gap:18px;padding:22px 22px 22px 20px;
  border-radius:var(--r-card);
  background:var(--bg-panel);border:1px solid var(--line);
  box-shadow:var(--shadow-card);
  transition:border-color .25s ease,transform .25s ease;
}
.path-item:hover{border-color:rgba(79,227,193,.45);transform:translateY(-3px)}
.path-num{
  font-family:var(--font-num);font-size:26px;line-height:1;font-weight:600;
  color:rgba(79,227,193,.55);flex-shrink:0;letter-spacing:-.02em;
}
.path-item h3{font-size:18px;margin-bottom:8px}
.path-item p{font-size:14.8px;color:var(--text-2);line-height:1.78}
.path-figure{
  border-radius:var(--r-card);overflow:hidden;
  border:1px solid var(--line-strong);
  background:var(--bg-raise);
  box-shadow:var(--shadow-card), inset 0 1px 0 rgba(255,255,255,.06);
}
.path-figure img{width:100%;aspect-ratio:4/3;object-fit:cover;border-radius:0;transition:transform .5s ease}
.path-figure:hover img{transform:scale(1.03)}
.path-figure figcaption{
  padding:14px 18px;font-size:13.5px;color:var(--text-3);
  border-top:1px solid var(--line);
}

/* ---------- FAQ ---------- */
.faq-group + .faq-group{margin-top:40px}
.faq-list{display:flex;flex-direction:column;gap:12px}
.faq-item{
  border-radius:14px;background:var(--bg-panel);
  border:1px solid var(--line);
  transition:border-color .25s ease,background .25s ease;
}
.faq-item:hover{border-color:var(--line-strong)}
.faq-item.is-open{border-color:rgba(79,227,193,.45);background:rgba(12,14,28,.95)}
.faq-item.is-hit{border-color:rgba(242,200,121,.5)}
.faq-q{
  display:flex;align-items:center;justify-content:space-between;gap:18px;
  width:100%;padding:18px 22px;background:none;border:0;
  text-align:left;font-size:17px;color:var(--text-1);cursor:pointer;
  transition:color .2s ease;
}
.faq-q:hover{color:var(--primary)}
.faq-icon{
  flex-shrink:0;display:inline-flex;color:var(--primary);
  transition:transform .28s ease;
}
.faq-item.is-open .faq-icon{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;
  transition:max-height .32s ease;
  padding:0 22px;
}
.faq-a p{
  font-size:15px;color:var(--text-2);line-height:1.85;
  padding-bottom:20px;border-top:1px solid var(--line);
  padding-top:16px;
}
.faq-a p + p{padding-top:0;border-top:0;margin-top:-6px}

/* ---------- CTA ---------- */
.cta-band{
  position:relative;overflow:hidden;
  padding:78px 0;
  background:radial-gradient(110% 140% at 50% 0%, #12142E 0%, #06070F 68%);
  border-top:1px solid var(--line);
  border-bottom:1px solid var(--line);
}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:760px;margin:0 auto}
.cta-inner h2{font-size:34px}
.cta-inner > p{margin-top:16px;font-size:16.5px;color:var(--text-2)}
.cta-actions{display:flex;justify-content:center;gap:14px;margin-top:30px;flex-wrap:wrap}
.cta-meta{
  display:grid;grid-template-columns:repeat(3,1fr);gap:18px;
  margin-top:46px;text-align:left;
}
.cta-meta .mini-card{
  padding:20px 22px;border-radius:14px;
  background:rgba(255,255,255,.03);
  border:1px solid var(--line);
}
.cta-meta .mini-card h4{font-size:15.5px;margin-bottom:8px;color:var(--text-1)}
.cta-meta .mini-card p{font-size:14px;color:var(--text-2);line-height:1.75}
.cta-meta .mini-card a{color:var(--primary);font-size:14px}
.cta-meta .mini-card a:hover{text-decoration:underline}

/* ---------- 页脚 ---------- */
.site-footer{
  position:relative;overflow:hidden;
  padding:66px 0 28px;
  background:linear-gradient(180deg,rgba(12,14,28,.65),#06070F 46%);
  border-top:1px solid var(--line);
}
.site-footer::before{
  content:"";position:absolute;inset:0 0 auto 0;height:180px;pointer-events:none;opacity:.5;
  background-image:
    radial-gradient(1.4px 1.4px at 40px 30px, rgba(255,255,255,.45) 50%, transparent 51%),
    radial-gradient(1px 1px at 180px 80px, rgba(255,255,255,.3) 50%, transparent 51%),
    radial-gradient(1.2px 1.2px at 320px 46px, rgba(255,255,255,.34) 50%, transparent 51%);
  background-size:400px 160px;
}
.site-footer .container-x{position:relative;z-index:2}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.1fr;gap:40px}
.footer-brand .brand{margin-bottom:18px}
.footer-brand p{font-size:14.5px;color:var(--text-2);line-height:1.85;margin-bottom:10px;max-width:320px}
.footer-col h4{font-size:15px;color:var(--text-1);margin-bottom:16px;font-weight:600}
.footer-col ul li{margin-bottom:11px}
.footer-col ul a{font-size:14.5px;color:var(--text-2);transition:color .2s ease}
.footer-col ul a:hover{color:var(--primary)}
.footer-bottom{
  margin-top:46px;padding-top:20px;border-top:1px solid var(--line);
  display:flex;justify-content:space-between;gap:16px;flex-wrap:wrap;
  font-size:13.5px;color:var(--text-3);
}

/* ---------- 响应式 ---------- */
@media (max-width:1279px){
  .container-x{max-width:1140px}
}
@media (max-width:1023px){
  .container-x{padding:0 32px}
  .nav-links{display:none}
  .nav-toggle{display:flex}
  .section{margin-bottom:72px}
  .page-hero{padding:126px 0 56px}
  .page-hero h1{font-size:38px}
  .hero-sub{font-size:17px}
  .section-head h2{font-size:29px}
  .cat-grid{grid-template-columns:repeat(2,1fr);gap:18px}
  .path-wrap{grid-template-columns:1fr;gap:32px}
  .cta-inner h2{font-size:29px}
  .cta-meta{grid-template-columns:1fr;gap:14px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:34px}
  .footer-brand p{max-width:none}
}
@media (max-width:639px){
  body{font-size:16px}
  .container-x{padding:0 20px}
  .section{margin-bottom:56px}
  .page-hero{padding:112px 0 48px}
  .page-hero h1{font-size:31px}
  .hero-sub{font-size:16px;margin-top:16px}
  .search-box{flex-wrap:wrap;padding:14px;gap:10px}
  .search-icon{display:none}
  .search-box input{height:42px;width:100%;flex:1 1 100%}
  .btn-search{width:100%}
  .section-head h2{font-size:24px}
  .section-head p{font-size:15.5px}
  .cat-grid{grid-template-columns:1fr}
  .path-item{padding:18px}
  .path-num{font-size:22px}
  .faq-q{font-size:16px;padding:16px 18px}
  .faq-a{padding:0 18px}
  .faq-a p{font-size:14.8px}
  .cta-band{padding:58px 0}
  .cta-inner h2{font-size:24px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;gap:8px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important}
  html{scroll-behavior:auto}
}