/* roulang page: index */
:root{
  --ink-950:#070C14;
  --ink-850:#0D1520;
  --ink-750:#131E2E;
  --line:rgba(148,180,220,.12);
  --line-strong:rgba(148,180,220,.25);
  --primary:#2DE1C2;
  --primary-hover:#3FF0D1;
  --primary-dim:rgba(45,225,194,.10);
  --secondary:#F2B544;
  --secondary-dim:rgba(242,181,68,.12);
  --text-high:#F0F3F8;
  --text-mid:#9DB1C7;
  --text-low:#5E748C;
  --radius-card:16px;
  --radius-btn:999px;
  --shadow-card:0 4px 20px rgba(0,0,0,.30);
  --shadow-card-hover:0 8px 32px rgba(0,0,0,.45);
  --transition:cubic-bezier(.4,0,.2,1);
  --font-sans:"PingFang SC","HarmonyOS Sans SC","MiSans","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","DIN Alternate","Roboto",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  font-family:var(--font-sans);
  background:var(--ink-950);
  color:var(--text-high);
  line-height:1.75;
  -webkit-font-smoothing:antialiased;
  overflow-x:hidden;
}
img{display:block;max-width:100%;height:auto}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer;border:none;background:none}
@media (min-width:1440px){
  .grid-container{max-width:1320px}
}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  height:48px;padding:0 28px;border-radius:var(--radius-btn);
  font-size:15px;font-weight:600;letter-spacing:1px;line-height:1;
  transition:all .25s var(--transition);border:none;
}
.btn-primary{background:var(--primary);color:#06251F}
.btn-primary:hover{background:var(--primary-hover);box-shadow:0 0 0 4px rgba(45,225,194,.18)}
.btn-ghost{background:transparent;color:var(--text-mid);border:1px solid var(--line)}
.btn-ghost:hover{color:var(--text-high);border-color:var(--primary)}
.btn-secondary{background:var(--secondary);color:#251A02}
.btn-secondary:hover{background:#FFC55C;box-shadow:0 0 0 4px rgba(242,181,68,.18)}
.btn:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
.badge{
  display:inline-block;padding:4px 10px;border-radius:6px;
  font-size:12px;line-height:1.4;background:var(--ink-750);
  border:1px solid var(--line);color:var(--text-mid);
}
.badge-info{background:var(--primary-dim);color:var(--primary);border-color:transparent}
.badge-warn{background:var(--secondary-dim);color:var(--secondary);border-color:transparent}
.site-header{
  position:fixed;top:16px;left:0;right:0;z-index:100;
  display:flex;justify-content:center;
}
.nav-capsule{
  width:min(1200px,92%);height:64px;
  display:flex;align-items:center;justify-content:space-between;
  padding:0 20px;border-radius:999px;
  background:rgba(7,12,20,.5);
  border:1px solid rgba(148,180,220,.14);
  backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);
  transition:background .3s var(--transition);
}
.site-header.scrolled .nav-capsule{background:rgba(7,12,20,.72)}
.brand{display:inline-flex;align-items:center;gap:10px}
.brand-mark{
  width:28px;height:28px;border-radius:50%;
  border:1.5px solid var(--primary);
  display:inline-flex;align-items:center;justify-content:center;
  font-size:15px;font-weight:700;color:var(--primary);
}
.brand-name{font-size:18px;font-weight:700;color:var(--text-high);letter-spacing:.5px}
.nav-links{display:flex;align-items:center;gap:28px}
.nav-link{
  font-size:15px;font-weight:500;color:var(--text-mid);
  letter-spacing:.5px;position:relative;padding:6px 2px;
  transition:color .2s var(--transition);
}
.nav-link:hover{color:var(--text-high)}
.nav-link.active{color:var(--text-high)}
.nav-link.active::after{
  content:"";position:absolute;left:50%;transform:translateX(-50%);
  bottom:0;width:4px;height:4px;border-radius:50%;background:var(--primary);
}
.nav-actions{display:flex;align-items:center;gap:12px}
.nav-cta{height:40px;padding:0 22px;font-size:14px}
.menu-toggle{display:none;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:5px}
.menu-toggle span{width:16px;height:2px;background:var(--text-high);border-radius:2px}
.mobile-menu{
  position:fixed;inset:0;z-index:200;background:rgba(7,12,20,.96);
  backdrop-filter:blur(24px);-webkit-backdrop-filter:blur(24px);
  display:none;flex-direction:column;padding:48px 32px 32px;
}
.mobile-menu.open{display:flex}
.menu-close{
  position:absolute;top:24px;right:24px;width:40px;height:40px;
  border-radius:50%;border:1px solid var(--line);color:var(--text-high);
  font-size:24px;line-height:1;display:flex;align-items:center;justify-content:center;
}
.mobile-menu .brand{font-size:18px;margin-bottom:32px}
.mobile-nav-link{
  font-size:24px;font-weight:600;line-height:2.2;color:var(--text-high);
  border-bottom:1px solid rgba(148,180,220,.08);
}
.mobile-nav-link:hover{color:var(--primary)}
.mobile-menu .btn{margin-top:32px;width:100%}
@media (max-width:767px){
  .nav-links{display:none}
  .menu-toggle{display:flex}
}
.hero{
  position:relative;min-height:100vh;display:flex;align-items:center;
  padding:140px 0 80px;
  background:radial-gradient(ellipse at 30% 40%,rgba(45,225,194,.06),transparent 52%);
  overflow:hidden;
}
.hero-bg{
  position:absolute;inset:0;background-size:cover;background-position:center;
  opacity:.08;pointer-events:none;
}
.hero-text{position:relative;z-index:2}
.eyebrow{
  font-size:12px;font-weight:600;letter-spacing:2px;color:var(--text-low);
  text-transform:uppercase;margin-bottom:20px;
}
.hero-text h1{
  font-size:56px;line-height:1.15;font-weight:700;letter-spacing:-.5px;
  color:var(--text-high);
}
.hero-text h1 .highlight{color:var(--primary)}
.hero-sub{
  font-size:18px;color:var(--text-mid);margin-top:20px;max-width:560px;
  line-height:1.75;
}
.hero-actions{display:flex;gap:16px;margin-top:32px;flex-wrap:wrap}
.hero-trust{
  margin-top:24px;display:flex;gap:16px;flex-wrap:wrap;
  font-size:12px;color:var(--text-low);letter-spacing:.5px;
}
.hero-media{position:relative;z-index:2}
.hero-figure{position:relative;border-radius:16px;box-shadow:var(--shadow-card);overflow:hidden}
.hero-img{width:100%;height:520px;object-fit:cover}
@media (max-width:1023px){
  .hero-img{height:380px}
}
.hero-status{
  position:absolute;bottom:16px;left:16px;
  background:rgba(13,21,32,.92);border-radius:10px;
  padding:8px 14px;font-size:12px;color:var(--text-high);
  display:flex;align-items:center;gap:8px;
  backdrop-filter:blur(8px);
}
.status-dot{
  width:6px;height:6px;border-radius:50%;background:var(--primary);
  box-shadow:0 0 0 2px rgba(45,225,194,.3);
  animation:pulse 2s ease-in-out infinite;
}
@keyframes pulse{
  0%,100%{box-shadow:0 0 0 2px rgba(45,225,194,.3)}
  50%{box-shadow:0 0 0 4px rgba(45,225,194,.12)}
}
.scroll-hint{
  position:absolute;bottom:24px;left:50%;transform:translateX(-50%);
  color:var(--text-low);display:flex;flex-direction:column;align-items:center;gap:6px;
  font-size:12px;letter-spacing:2px;z-index:2;
}
.scroll-hint svg{width:16px;height:16px;stroke:currentColor;fill:none;stroke-width:1.5}
.section{padding:80px 0}
.section-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:40px;gap:16px}
.section-head h2{
  font-size:36px;line-height:1.25;font-weight:700;letter-spacing:-.3px;
  margin:0;padding-left:16px;border-left:4px solid var(--primary);
}
.kicker{
  font-size:12px;font-weight:600;letter-spacing:2px;color:var(--text-low);
  text-transform:uppercase;white-space:nowrap;
}
.entry-card{
  display:block;background:var(--ink-850);border:1px solid var(--line);
  border-radius:16px;padding:28px;position:relative;overflow:hidden;
  transition:all .25s var(--transition);
}
.entry-card:hover{
  transform:translateY(-2px);box-shadow:var(--shadow-card-hover);
  border-color:rgba(45,225,194,.3);
}
.entry-main{border-left:4px solid var(--primary);min-height:240px}
.entry-main h3{font-size:20px;font-weight:600;margin-bottom:12px}
.entry-main p{color:var(--text-mid);font-size:15px;max-width:420px}
.entry-arrow{
  position:absolute;right:24px;bottom:24px;width:40px;height:40px;
  border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--primary-dim);color:var(--primary);font-size:18px;
  transition:transform .25s var(--transition),background .25s var(--transition);
}
.entry-card:hover .entry-arrow{transform:translateX(4px)}
.entry-small{min-height:140px;margin-bottom:24px}
.entry-small:last-child{margin-bottom:0}
.entry-small h3{font-size:18px;font-weight:600;margin:14px 0 6px}
.entry-small p{font-size:13px;color:var(--text-mid);line-height:1.6}
.entry-icon{
  width:44px;height:44px;border-radius:10px;
  background:var(--primary-dim);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:20px;
  transition:transform .25s var(--transition);
}
.entry-small .entry-icon{background:var(--secondary-dim);color:var(--secondary)}
.entry-card:hover .entry-icon{transform:scale(1.05)}
@media (max-width:1023px){
  .entry-small{margin-bottom:16px}
  .entry-main{min-height:auto}
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.stat-item{
  background:var(--ink-850);border:1px solid var(--line);border-radius:16px;
  padding:32px 24px;position:relative;
  transition:all .25s var(--transition);
}
.stat-item:hover{box-shadow:var(--shadow-card-hover);border-color:var(--line-strong)}
.stat-item::after{
  content:"";position:absolute;right:20px;bottom:20px;
  width:2px;height:16px;background:var(--secondary);
}
.stat-num{
  font-family:var(--font-num);font-size:48px;line-height:1.1;
  font-weight:700;letter-spacing:-1px;color:var(--text-high);
}
.stat-num .stat-unit{font-size:14px;letter-spacing:0;color:var(--text-mid);margin-left:2px;font-weight:400}
.stat-label{font-size:13px;color:var(--text-low);margin-top:8px}
@media (max-width:767px){
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .stat-num{font-size:36px}
}
.cases-section{background:var(--ink-850)}
.case-row{display:grid;grid-template-columns:1.1fr 1fr;gap:48px;align-items:center;margin-bottom:56px}
.case-row:last-child{margin-bottom:0}
.case-row.reverse .case-media{order:2}
.case-media{position:relative;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-card)}
.case-media img{width:100%;height:300px;object-fit:cover}
.case-tag{
  position:absolute;bottom:12px;left:12px;
  background:rgba(13,21,32,.72);border-radius:6px;
  padding:6px 10px;font-size:12px;color:var(--text-high);
  backdrop-filter:blur(6px);
}
.case-content h3{font-size:20px;font-weight:600;margin-bottom:12px}
.case-content p{color:var(--text-mid);font-size:15px}
.case-link{
  display:inline-flex;align-items:center;gap:6px;
  color:var(--primary);font-weight:500;margin-top:16px;font-size:14px;
}
.case-link:hover{text-decoration:underline}
@media (max-width:1023px){
  .case-row{grid-template-columns:1fr;gap:24px}
  .case-row.reverse .case-media{order:0}
}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;position:relative}
.steps-grid::before{
  content:"";position:absolute;top:24px;left:8%;right:8%;
  border-top:1px dashed rgba(148,180,220,.15);
}
.step-card{
  position:relative;z-index:1;border:1px solid var(--line);
  border-radius:16px;padding:24px;background:var(--ink-950);
  transition:all .25s var(--transition);
}
.step-card:hover{border-color:var(--line-strong);box-shadow:var(--shadow-card)}
.step-num{
  width:48px;height:48px;border-radius:10px;border:1.5px solid var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:18px;font-weight:700;color:var(--text-high);margin-bottom:16px;
  font-family:var(--font-num);transition:background .25s var(--transition);
}
.step-card:hover .step-num{background:var(--primary-dim)}
.step-card h3{font-size:18px;font-weight:600;margin-bottom:8px}
.step-card p{font-size:14px;color:var(--text-mid);line-height:1.6}
.step-badge{display:inline-block;margin-top:14px;padding:4px 10px;border-radius:6px;font-size:12px}
.step-badge.recommend{background:var(--secondary-dim);color:var(--secondary)}
.step-badge.direct{background:var(--primary-dim);color:var(--primary)}
@media (max-width:1023px){
  .steps-grid{grid-template-columns:repeat(2,1fr);gap:16px}
  .steps-grid::before{display:none}
}
@media (max-width:639px){
  .steps-grid{grid-template-columns:1fr}
}
.news-section .section-head .view-all{
  font-size:14px;color:var(--text-mid);display:inline-flex;align-items:center;gap:4px;
  transition:color .2s var(--transition);
}
.news-section .section-head .view-all:hover{color:var(--primary)}
.news-focus-card{
  display:block;background:var(--ink-850);border:1px solid var(--line);
  border-radius:16px;overflow:hidden;transition:all .25s var(--transition);height:100%;
}
.news-focus-card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:rgba(45,225,194,.3)}
.news-focus-media{overflow:hidden}
.news-focus-media img{width:100%;height:220px;object-fit:cover;transition:transform .4s var(--transition)}
.news-focus-card:hover .news-focus-media img{transform:scale(1.03)}
.news-focus-body{padding:24px}
.news-meta{display:flex;flex-wrap:wrap;gap:8px 12px;font-size:12px;color:var(--text-low);margin-bottom:10px;align-items:center}
.news-focus-title{font-size:22px;font-weight:700;line-height:1.3;margin-bottom:8px}
.news-focus-desc{
  font-size:14px;color:var(--text-mid);line-height:1.65;
  display:-webkit-box;-webkit-line-clamp:3;-webkit-box-orient:vertical;overflow:hidden;
}
.news-list{display:flex;flex-direction:column;gap:8px}
.news-item{
  display:flex;gap:16px;padding:14px;border-radius:12px;align-items:center;
  transition:background .2s var(--transition);
}
.news-item:hover{background:var(--ink-850)}
.news-thumb{
  width:80px;height:80px;border-radius:8px;object-fit:cover;flex-shrink:0;
}
.news-item-body{flex:1;min-width:0}
.news-item-title{
  font-size:16px;font-weight:600;line-height:1.4;
  white-space:nowrap;overflow:hidden;text-overflow:ellipsis;
}
.news-item-desc{
  font-size:13px;color:var(--text-mid);margin-top:4px;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-item-foot{
  font-size:12px;color:var(--text-low);margin-top:8px;
  display:flex;gap:12px;align-items:center;
}
.news-item-cat{color:var(--primary)}
.news-empty{
  text-align:center;padding:60px 20px;color:var(--text-mid);
  background:var(--ink-850);border-radius:16px;
}
@media (max-width:1023px){
  .news-focus-card{height:auto;margin-bottom:16px}
}
.faq-wrap{max-width:860px;margin:0 auto}
.faq-item{
  background:var(--ink-850);border:1px solid var(--line);
  border-radius:12px;padding:20px 24px;margin-bottom:8px;
  transition:border-color .25s var(--transition);
}
.faq-item.open{border-color:var(--primary)}
.faq-q{
  display:flex;justify-content:space-between;align-items:center;gap:16px;
  font-size:16px;font-weight:600;cursor:pointer;user-select:none;
}
.faq-icon{
  width:24px;height:24px;border-radius:50%;border:1.5px solid var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:16px;color:var(--primary);flex-shrink:0;
  transition:transform .3s var(--transition);
  position:relative;
}
.faq-icon::before,.faq-icon::after{
  content:"";position:absolute;background:currentColor;border-radius:2px;
}
.faq-icon::before{width:10px;height:1.5px}
.faq-icon::after{width:1.5px;height:10px}
.faq-item.open .faq-icon{transform:rotate(45deg)}
.faq-a{
  max-height:0;overflow:hidden;color:var(--text-mid);font-size:15px;line-height:1.75;
  transition:max-height .3s ease;
}
.faq-item.open .faq-a{max-height:400px;padding-top:12px}
.cta-box{
  background:var(--primary-dim);border:1px solid rgba(45,225,194,.16);
  border-radius:24px;padding:56px 24px;text-align:center;
}
.cta-box h2{font-size:36px;font-weight:700;line-height:1.25}
.cta-box p{
  color:var(--text-mid);max-width:560px;margin:16px auto 28px;font-size:16px;
}
.site-footer{
  background:#040810;border-top:1px solid var(--line);
  padding:48px 0 32px;margin-top:64px;
}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:48px}
.footer-logo{display:flex;align-items:center;gap:10px}
.footer-slogan{color:var(--text-mid);font-size:14px;margin-top:12px;line-height:1.6}
.footer-copy{color:var(--text-low);font-size:12px;margin-top:12px;line-height:1.6}
.footer-col h4{font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col a{
  display:block;color:var(--text-mid);font-size:14px;padding:4px 0;
  transition:color .2s var(--transition);
}
.footer-col a:hover{color:var(--primary)}
.footer-legal{font-size:12px;color:var(--text-low);line-height:1.7}
@media (max-width:767px){
  .footer-grid{grid-template-columns:1fr;gap:32px}
}
@media (max-width:639px){
  .section{padding:48px 0}
  .section-head h2{font-size:26px}
  .hero{padding:120px 0 64px;min-height:auto}
  .hero-text h1{font-size:36px}
  .hero-sub{font-size:15px}
  .hero-actions .btn{width:100%}
  .hero-actions{gap:12px}
  .hero-media{margin-top:32px}
  .hero-img{height:300px}
  .case-media img{height:220px}
  .cta-box{padding:40px 20px}
  .cta-box h2{font-size:26px}
  .scroll-hint{display:none}
}
@media (max-width:1023px){
  .entry-card,.news-focus-body,.faq-item{padding:20px}
  .news-item{padding:12px}
}
@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation:none!important;transition:none!important;scroll-behavior:auto!important}
}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px}

/* roulang page: article */
:root {
            --ink-950: #070C14;
            --ink-850: #0D1520;
            --ink-750: #131E2E;
            --line: rgba(148, 180, 220, .12);
            --line-strong: rgba(148, 180, 220, .25);
            --primary: #2DE1C2;
            --primary-bright: #3FF0D1;
            --primary-dim: rgba(45, 225, 194, .10);
            --secondary: #F2B544;
            --secondary-dim: rgba(242, 181, 68, .12);
            --text-high: #F0F3F8;
            --text-mid: #9DB1C7;
            --text-low: #5E748C;
            --radius-card: 16px;
            --radius-btn: 999px;
            --shadow-card: 0 4px 20px rgba(0,0,0,.30);
            --shadow-hover: 0 8px 32px rgba(0,0,0,.45);
            --font-cn: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
            --font-num: "Inter", "DIN Alternate", "Roboto", sans-serif;
            --ease: cubic-bezier(.4, 0, .2, 1);
        }
        *, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
        html { scroll-behavior: smooth; scroll-padding-top: 90px; }
        body {
            font-family: var(--font-cn);
            font-size: 16px;
            line-height: 1.75;
            background: var(--ink-950);
            color: var(--text-high);
            -webkit-font-smoothing: antialiased;
            text-rendering: optimizeLegibility;
            min-height: 100vh;
        }
        img { max-width: 100%; display: block; height: auto; }
        a { color: var(--primary); text-decoration: none; transition: color .25s var(--ease), border-color .25s var(--ease), background .25s var(--ease), transform .25s var(--ease), box-shadow .25s var(--ease); }
        button { font-family: var(--font-cn); cursor: pointer; border: none; background: none; }
        a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
            outline: 2px solid var(--primary);
            outline-offset: 3px;
        }
        .grid-container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
        @media (min-width: 1440px) {
            .grid-container { max-width: 1320px; }
        }

        /* ---------- 导航 ---------- */
        .site-header {
            position: fixed;
            top: 16px;
            left: 50%;
            transform: translateX(-50%);
            z-index: 100;
            width: min(1200px, 92%);
            height: 64px;
            background: rgba(7, 12, 20, .72);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border: 1px solid rgba(148, 180, 220, .14);
            border-radius: 999px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 0 24px;
            box-shadow: 0 8px 32px rgba(0, 0, 0, .35);
            transition: background .3s var(--ease), box-shadow .3s var(--ease);
        }
        .nav-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; height: 100%; }
        .brand-logo { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; flex-shrink: 0; }
        .brand-mark {
            width: 28px; height: 28px; border-radius: 50%;
            border: 2px solid var(--primary);
            color: var(--primary);
            display: inline-flex; align-items: center; justify-content: center;
            font-size: 14px; font-weight: 700; line-height: 1;
            background: var(--primary-dim);
        }
        .brand-name { font-size: 18px; font-weight: 700; color: var(--text-high); letter-spacing: .5px; white-space: nowrap; }
        .nav-links { display: flex; align-items: center; gap: 28px; }
        .nav-link {
            font-size: 15px; font-weight: 500; color: var(--text-mid);
            letter-spacing: .5px; position: relative;
            padding: 8px 4px; text-decoration: none;
            transition: color .25s var(--ease);
        }
        .nav-link::after {
            content: ''; position: absolute; left: 50%; bottom: 2px;
            width: 4px; height: 4px; border-radius: 50%;
            background: var(--primary);
            transform: translateX(-50%) scale(0);
            transition: transform .25s var(--ease);
        }
        .nav-link:hover { color: var(--text-high); }
        .nav-link:hover::after { transform: translateX(-50%) scale(1); }
        .nav-link.active { color: var(--text-high); }
        .nav-link.active::after { transform: translateX(-50%) scale(1); }
        .nav-cta {
            display: inline-flex; align-items: center; justify-content: center;
            height: 40px; padding: 0 24px;
            background: var(--primary); color: #06251F;
            border-radius: 999px;
            font-size: 15px; font-weight: 600; letter-spacing: 1px;
            text-decoration: none; flex-shrink: 0;
            transition: background .25s var(--ease), box-shadow .25s var(--ease), transform .25s var(--ease);
        }
        .nav-cta:hover { background: var(--primary-bright); color: #06251F; box-shadow: 0 0 0 4px rgba(45, 225, 194, .18); transform: translateY(-1px); }
        .nav-toggle { display: none; flex-direction: column; gap: 5px; padding: 10px; align-items: center; justify-content: center; z-index: 102; }
        .toggle-bar { width: 22px; height: 2px; background: var(--text-high); border-radius: 2px; transition: all .25s var(--ease); display: block; }
        .mobile-menu {
            display: none;
            position: fixed; top: 0; right: 0; bottom: 0;
            width: min(360px, 85vw);
            background: rgba(7, 12, 20, .92);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            z-index: 105;
            padding: 80px 32px 32px;
            border-radius: 16px 0 0 16px;
            border-left: 1px solid var(--line);
            flex-direction: column;
            gap: 8px;
            overflow-y: auto;
        }
        .mobile-menu.open { display: flex; }
        .menu-close {
            position: absolute; top: 20px; right: 20px;
            width: 40px; height: 40px;
            display: inline-flex; align-items: center; justify-content: center;
            font-size: 28px; color: var(--text-mid);
            border-radius: 50%; border: 1px solid var(--line);
            transition: all .25s var(--ease);
        }
        .menu-close:hover { color: var(--primary); border-color: var(--primary); }
        .mobile-link {
            font-size: 24px; font-weight: 600; line-height: 2;
            color: var(--text-high); text-decoration: none;
            transition: color .25s var(--ease), transform .25s var(--ease);
        }
        .mobile-link:hover { color: var(--primary); transform: translateX(4px); }
        .mobile-cta {
            display: inline-flex; align-items: center; justify-content: center;
            height: 48px; margin-top: 16px;
            background: var(--primary); color: #06251F;
            border-radius: 999px; font-size: 16px; font-weight: 600;
            text-decoration: none; letter-spacing: 1px;
            transition: background .25s var(--ease), box-shadow .25s var(--ease);
        }
        .mobile-cta:hover { background: var(--primary-bright); box-shadow: 0 0 0 4px rgba(45,225,194,.18); color: #06251F; }

        /* ---------- 阅读进度条 ---------- */
        .reading-progress {
            position: fixed; top: 0; left: 0;
            height: 2px; width: 0%;
            background: var(--primary);
            z-index: 200;
            transition: width .1s linear;
        }

        /* ---------- 文章主体 ---------- */
        .article-main {
            padding-top: 140px;
            padding-bottom: 80px;
        }
        .breadcrumb {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-mid);
            margin-bottom: 40px;
        }
        .breadcrumb a { color: var(--text-mid); text-decoration: none; transition: color .25s var(--ease); }
        .breadcrumb a:hover { color: var(--primary); }
        .breadcrumb .sep { color: var(--text-low); }
        .breadcrumb .current { color: var(--text-low); }
        .crumb-title {
            max-width: 200px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
            color: var(--text-low);
        }
        .crumb-cat { color: var(--primary); }

        .article-header {
            margin-bottom: 40px;
            padding-bottom: 32px;
            border-bottom: 1px solid var(--line);
        }
        .article-header h1 {
            font-size: 36px;
            line-height: 1.3;
            font-weight: 700;
            color: var(--text-high);
            letter-spacing: -.3px;
            margin-bottom: 16px;
        }
        .meta-row {
            display: flex;
            align-items: center;
            flex-wrap: wrap;
            gap: 8px;
            font-size: 13px;
            color: var(--text-mid);
            margin-bottom: 20px;
        }
        .meta-dot { color: var(--text-low); }
        .meta-item a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
        .meta-item a:hover { text-decoration: none; }
        .article-actions { display: flex; gap: 12px; flex-wrap: wrap; }
        .action-btn {
            display: inline-flex; align-items: center; gap: 6px;
            font-size: 13px; color: var(--text-mid);
            border: 1px solid var(--line); border-radius: 999px;
            padding: 6px 14px;
            background: var(--ink-750);
            transition: all .25s var(--ease);
            cursor: pointer; text-decoration: none;
        }
        .action-btn:hover { border-color: var(--primary); color: var(--primary); }
        .action-icon { width: 14px; height: 14px; }

        /* ---------- 正文 ---------- */
        .article-body {
            font-size: 16px;
            line-height: 1.75;
            color: var(--text-mid);
            max-width: 720px;
        }
        .article-body p { margin-bottom: 1em; color: var(--text-mid); }
        .article-body h2 {
            font-size: 26px; font-weight: 700; color: var(--text-high);
            margin: 40px 0 20px;
            padding-left: 16px;
            border-left: 4px solid var(--primary);
            line-height: 1.4;
        }
        .article-body h3 {
            font-size: 20px; font-weight: 600; color: var(--text-high);
            margin: 32px 0 16px;
        }
        .article-body h4 {
            font-size: 18px; font-weight: 600; color: var(--text-high);
            margin: 24px 0 12px;
        }
        .article-body img {
            border-radius: 12px;
            margin: 24px auto;
            box-shadow: 0 4px 12px rgba(0, 0, 0, .25);
        }
        .article-body figcaption {
            font-size: 12px; color: var(--text-low); text-align: center;
            margin-top: -16px; margin-bottom: 24px;
        }
        .article-body blockquote {
            border-left: 3px solid var(--primary);
            background: var(--ink-850);
            padding: 16px 20px;
            margin: 24px 0;
            border-radius: 0 12px 12px 0;
            color: var(--text-mid);
        }
        .article-body a {
            color: var(--primary);
            text-decoration: underline;
            text-decoration-color: var(--primary);
            text-decoration-thickness: 1px;
            text-underline-offset: 4px;
        }
        .article-body a:hover { text-decoration: none; font-weight: 500; }
        .article-body ul, .article-body ol { margin: 16px 0; padding-left: 24px; }
        .article-body li { margin-bottom: 8px; }
        .article-body code {
            background: var(--ink-850);
            border: 1px solid var(--line);
            border-radius: 6px;
            padding: 2px 8px;
            font-family: "SFMono", "Consolas", "Liberation Mono", monospace;
            font-size: 13px;
            color: var(--primary);
        }
        .article-body pre {
            background: var(--ink-850);
            border-radius: 10px;
            padding: 16px 20px;
            overflow-x: auto;
            margin: 24px 0;
            border: 1px solid var(--line);
        }
        .article-body pre code {
            background: none; border: none; padding: 0;
            color: var(--text-high);
            white-space: pre;
        }
        .article-body table {
            width: 100%; max-width: 100%;
            border-collapse: collapse;
            margin: 24px 0;
            font-size: 14px;
        }
        .article-body th {
            text-align: left;
            background: var(--ink-750);
            color: var(--text-high);
            font-weight: 600;
            padding: 12px 16px;
            border-bottom: 2px solid var(--line);
        }
        .article-body td {
            padding: 10px 16px;
            border-bottom: 1px solid var(--line);
            color: var(--text-mid);
        }

        /* ---------- 标签 ---------- */
        .article-tags {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            margin-top: 40px;
            padding-top: 24px;
            border-top: 1px solid var(--line);
        }
        .tag {
            display: inline-block;
            padding: 6px 14px;
            background: var(--ink-750);
            border: 1px solid var(--line);
            border-radius: 999px;
            font-size: 13px;
            color: var(--text-mid);
            transition: all .25s var(--ease);
        }
        .tag:hover { border-color: var(--primary); color: var(--primary); }

        /* ---------- 延伸阅读 ---------- */
        .related-section {
            margin-top: 56px;
            padding-top: 40px;
            border-top: 1px solid var(--line);
        }
        .section-head {
            display: flex;
            align-items: center;
            gap: 16px;
            margin-bottom: 28px;
        }
        .kicker {
            font-size: 12px;
            font-weight: 600;
            letter-spacing: 2px;
            color: var(--text-low);
        }
        .section-head h3 {
            font-size: 20px;
            font-weight: 600;
            color: var(--text-high);
            margin: 0;
        }
        .related-card {
            display: flex;
            align-items: center;
            gap: 16px;
            background: var(--ink-850);
            border: 1px solid var(--line);
            border-radius: 16px;
            padding: 16px;
            margin-bottom: 16px;
            transition: all .25s var(--ease);
            text-decoration: none;
            height: 100%;
        }
        .related-card:hover {
            transform: translateY(-2px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(45, 225, 194, .3);
        }
        .related-thumb {
            width: 120px;
            height: 80px;
            border-radius: 8px;
            object-fit: cover;
            flex-shrink: 0;
        }
        .related-info { min-width: 0; }
        .related-info h4 {
            font-size: 16px;
            font-weight: 600;
            color: var(--text-high);
            line-height: 1.4;
            margin-bottom: 6px;
            white-space: nowrap;
            overflow: hidden;
            text-overflow: ellipsis;
        }
        .related-date { font-size: 12px; color: var(--text-low); }
        .article-footer-nav {
            margin-top: 32px;
            text-align: center;
        }

        /* ---------- 空态 ---------- */
        .article-empty {
            text-align: center;
            padding: 80px 32px;
            background: var(--ink-850);
            border: 1px solid var(--line);
            border-radius: 16px;
        }
        .empty-icon {
            font-size: 48px;
            color: var(--text-low);
            margin-bottom: 16px;
            letter-spacing: 4px;
        }
        .article-empty h2 {
            font-size: 24px;
            font-weight: 600;
            color: var(--text-high);
            margin-bottom: 12px;
        }
        .article-empty p {
            color: var(--text-mid);
            margin-bottom: 24px;
        }

        /* ---------- 按钮 ---------- */
        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            height: 48px;
            padding: 0 32px;
            border-radius: 999px;
            font-size: 15px;
            font-weight: 600;
            letter-spacing: 1px;
            text-decoration: none;
            border: none;
            transition: all .25s var(--ease);
            cursor: pointer;
        }
        .btn-primary { background: var(--primary); color: #06251F; }
        .btn-primary:hover { background: var(--primary-bright); color: #06251F; box-shadow: 0 0 0 4px rgba(45, 225, 194, .18); transform: translateY(-1px); }
        .btn-secondary { background: var(--secondary); color: #251A02; }
        .btn-secondary:hover { filter: brightness(1.1); box-shadow: 0 0 0 4px rgba(242, 181, 68, .15); transform: translateY(-1px); color: #251A02; }
        .btn-outline { background: transparent; color: var(--text-mid); border: 1px solid var(--line); }
        .btn-outline:hover { border-color: var(--primary); color: var(--text-high); }
        .btn-sm { height: 40px; padding: 0 24px; font-size: 14px; }

        /* ---------- CTA ---------- */
        .article-cta {
            margin: 0 24px 80px;
            background: var(--primary-dim);
            border-radius: 24px;
            padding: 48px 32px;
            text-align: center;
            border: 1px solid rgba(45, 225, 194, .12);
        }
        .article-cta h2 {
            font-size: 28px;
            font-weight: 700;
            color: var(--text-high);
            margin-bottom: 12px;
        }
        .article-cta p {
            color: var(--text-mid);
            font-size: 16px;
            margin-bottom: 24px;
        }

        /* ---------- 页脚 ---------- */
        .site-footer {
            background: #040810;
            border-top: 1px solid var(--line);
            padding: 56px 0 32px;
            margin-top: 0;
        }
        .footer-grid {
            display: grid;
            grid-template-columns: 1.4fr 1fr 1.2fr;
            gap: 40px;
        }
        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 12px;
        }
        .footer-brand-mark {
            width: 28px; height: 28px; border-radius: 50%;
            border: 2px solid var(--primary);
            color: var(--primary);
            display: inline-flex; align-items: center; justify-content: center;
            font-size: 14px; font-weight: 700;
            background: var(--primary-dim);
        }
        .footer-brand-name {
            font-size: 18px; font-weight: 700;
            color: var(--text-high);
            letter-spacing: .5px;
        }
        .footer-slogan {
            font-size: 14px;
            color: var(--text-mid);
            margin-bottom: 16px;
            line-height: 1.6;
            max-width: 280px;
        }
        .footer-copy {
            font-size: 12px;
            color: var(--text-low);
            line-height: 1.6;
        }
        .footer-col h4 {
            font-size: 15px;
            font-weight: 600;
            color: var(--text-high);
            margin-bottom: 16px;
        }
        .footer-col a {
            display: block;
            font-size: 14px;
            color: var(--text-mid);
            margin-bottom: 10px;
            text-decoration: none;
            transition: color .25s var(--ease);
        }
        .footer-col a:hover { color: var(--primary); }
        .footer-legal {
            font-size: 12px;
            color: var(--text-low);
            line-height: 1.6;
        }

        /* ---------- 响应式 ---------- */
        @media (max-width: 1024px) {
            .nav-links { gap: 18px; }
            .nav-link { font-size: 14px; }
            .article-main { padding-top: 120px; }
            .article-header h1 { font-size: 32px; }
        }
        @media (max-width: 768px) {
            .site-header { width: 94%; padding: 0 16px; }
            .nav-links { display: none; }
            .nav-cta { display: none; }
            .nav-toggle { display: flex; }
            .article-main { padding-top: 120px; padding-bottom: 56px; }
            .article-header h1 { font-size: 28px; }
            .meta-row { font-size: 12px; }
            .footer-grid { grid-template-columns: 1fr; gap: 32px; }
            .article-cta { margin: 0 16px 56px; padding: 40px 24px; }
            .related-card { padding: 12px; }
            .related-thumb { width: 100px; height: 72px; }
            .breadcrumb { margin-bottom: 28px; }
        }
        @media (max-width: 520px) {
            .site-header { top: 12px; height: 56px; }
            .brand-name { font-size: 16px; }
            .brand-mark { width: 24px; height: 24px; font-size: 12px; }
            .article-main { padding-top: 96px; }
            .article-header h1 { font-size: 24px; }
            .article-body { font-size: 15px; }
            .article-body h2 { font-size: 22px; }
            .article-body h3 { font-size: 18px; }
            .related-card { flex-direction: column; align-items: flex-start; }
            .related-thumb { width: 100%; height: 140px; }
            .article-cta h2 { font-size: 22px; }
            .article-actions { flex-direction: column; align-items: flex-start; }
            .crumb-title { max-width: 120px; }
        }
        @media (prefers-reduced-motion: reduce) {
            *, *::before, *::after {
                animation-duration: .01ms !important;
                transition-duration: .01ms !important;
                scroll-behavior: auto !important;
            }
        }

/* roulang page: category1 */
:root {
      --ink-950: #070C14;
      --ink-850: #0D1520;
      --ink-750: #131E2E;
      --line: rgba(148, 180, 220, .12);
      --line-bright: rgba(148, 180, 220, .25);
      --primary: #2DE1C2;
      --primary-dim: rgba(45, 225, 194, .10);
      --secondary: #F2B544;
      --text-high: #F0F3F8;
      --text-mid: #9DB1C7;
      --text-low: #5E748C;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --radius-pill: 999px;
      --shadow-card: 0 4px 20px rgba(0, 0, 0, .30);
      --shadow-hover: 0 8px 32px rgba(0, 0, 0, .45);
      --ease: cubic-bezier(.4, 0, .2, 1);
    }

    *,
    *::before,
    *::after {
      box-sizing: border-box;
      margin: 0;
      padding: 0;
    }

    html {
      scroll-behavior: smooth;
      -webkit-text-size-adjust: 100%;
    }

    body {
      font-family: "PingFang SC", "HarmonyOS Sans SC", "MiSans", "Source Han Sans SC", "Noto Sans CJK SC", "Microsoft YaHei", sans-serif;
      background: var(--ink-950);
      color: var(--text-high);
      font-size: 16px;
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      -moz-osx-font-smoothing: grayscale;
      overflow-x: hidden;
    }

    img {
      max-width: 100%;
      display: block;
    }

    a {
      color: inherit;
      text-decoration: none;
      transition: color .2s ease;
    }

    button {
      font-family: inherit;
      cursor: pointer;
      border: none;
      background: none;
      color: inherit;
    }

    a:focus-visible,
    button:focus-visible {
      outline: 2px solid var(--primary);
      outline-offset: 3px;
      border-radius: 4px;
    }

    .grid-container {
      max-width: 1200px;
    }

    @media screen and (min-width: 1440px) {
      .grid-container {
        max-width: 1320px;
      }
    }

    /* ===== Header ===== */
    .site-header {
      position: fixed;
      top: 16px;
      left: 0;
      right: 0;
      z-index: 1000;
      display: flex;
      justify-content: center;
      padding: 0 20px;
      pointer-events: none;
    }

    .header-inner {
      pointer-events: auto;
      width: min(1200px, 100%);
      height: 64px;
      background: rgba(7, 12, 20, .72);
      -webkit-backdrop-filter: blur(20px);
      backdrop-filter: blur(20px);
      border: 1px solid rgba(148, 180, 220, .14);
      border-radius: var(--radius-pill);
      display: flex;
      align-items: center;
      justify-content: space-between;
      padding: 0 8px 0 20px;
      box-shadow: 0 8px 32px rgba(0, 0, 0, .28);
      transition: background .3s var(--ease), box-shadow .3s var(--ease);
    }

    .header-inner.scrolled {
      background: rgba(7, 12, 20, .85);
      box-shadow: 0 12px 40px rgba(0, 0, 0, .35);
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .brand-mark {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      border: 1.5px solid var(--primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 14px;
      font-weight: 600;
      font-family: "Inter", "DIN Alternate", sans-serif;
      transition: box-shadow .25s var(--ease);
    }

    .logo:hover .brand-mark {
      box-shadow: 0 0 0 4px rgba(45, 225, 194, .15);
    }

    .brand-name {
      font-size: 18px;
      font-weight: 700;
      letter-spacing: .5px;
      color: var(--text-high);
      white-space: nowrap;
    }

    .nav-links {
      display: flex;
      align-items: center;
      gap: 28px;
      margin: 0 auto;
      padding-left: 24px;
    }

    .nav-link {
      position: relative;
      color: var(--text-mid);
      font-size: 15px;
      font-weight: 500;
      letter-spacing: .5px;
      padding: 6px 2px;
      white-space: nowrap;
    }

    .nav-link::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: -2px;
      width: 4px;
      height: 4px;
      border-radius: 50%;
      background: var(--primary);
      opacity: 0;
      transform: translateX(-50%) scale(0);
      transition: all .25s var(--ease);
    }

    .nav-link:hover {
      color: var(--text-high);
    }

    .nav-link:hover::after,
    .nav-link.active::after {
      opacity: 1;
      transform: translateX(-50%) scale(1);
    }

    .nav-link.active {
      color: var(--text-high);
    }

    .header-actions {
      display: flex;
      align-items: center;
      gap: 10px;
      flex-shrink: 0;
    }

    .header-cta {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: 40px;
      padding: 0 24px;
      border-radius: var(--radius-pill);
      background: var(--primary);
      color: #06251F;
      font-size: 14px;
      font-weight: 600;
      letter-spacing: 1px;
      white-space: nowrap;
      transition: all .25s var(--ease);
    }

    .header-cta:hover {
      background: #3FF0D1;
      box-shadow: 0 0 0 4px rgba(45, 225, 194, .15);
      color: #06251F;
    }

    .hamburger {
      display: none;
      flex-direction: column;
      justify-content: center;
      align-items: center;
      gap: 5px;
      width: 40px;
      height: 40px;
      border-radius: 12px;
      border: 1px solid var(--line);
      background: var(--ink-750);
    }

    .hamburger span {
      display: block;
      width: 18px;
      height: 2px;
      border-radius: 2px;
      background: var(--text-high);
      transition: all .25s var(--ease);
    }

    .hamburger.active span:nth-child(1) {
      transform: translateY(7px) rotate(45deg);
    }

    .hamburger.active span:nth-child(2) {
      opacity: 0;
    }

    .hamburger.active span:nth-child(3) {
      transform: translateY(-7px) rotate(-45deg);
    }

    /* Mobile Menu */
    .mobile-menu {
      position: fixed;
      top: 16px;
      left: 20px;
      right: 20px;
      z-index: 999;
      background: rgba(7, 12, 20, .92);
      -webkit-backdrop-filter: blur(24px);
      backdrop-filter: blur(24px);
      border: 1px solid var(--line);
      border-radius: 16px;
      padding: 40px 24px 24px;
      box-shadow: 0 24px 64px rgba(0, 0, 0, .5);
      display: none;
      pointer-events: auto;
    }

    .mobile-menu.open {
      display: block;
    }

    .mobile-close {
      position: absolute;
      top: 14px;
      right: 14px;
      width: 36px;
      height: 36px;
      border-radius: 10px;
      display: flex;
      align-items: center;
      justify-content: center;
      font-size: 16px;
      color: var(--text-mid);
      border: 1px solid var(--line);
      transition: all .2s var(--ease);
    }

    .mobile-close:hover {
      color: var(--text-high);
      border-color: var(--primary);
    }

    .mobile-nav {
      display: flex;
      flex-direction: column;
      gap: 4px;
      margin-bottom: 24px;
    }

    .mobile-nav a {
      font-size: 24px;
      font-weight: 600;
      line-height: 2;
      color: var(--text-mid);
      border-radius: 10px;
      padding: 0 8px;
      transition: all .2s var(--ease);
    }

    .mobile-nav a:hover,
    .mobile-nav a.active {
      color: var(--primary);
      background: var(--primary-dim);
    }

    .mobile-cta {
      display: flex;
      align-items: center;
      justify-content: center;
      height: 48px;
      border-radius: var(--radius-pill);
      background: var(--primary);
      color: #06251F;
      font-size: 15px;
      font-weight: 600;
      letter-spacing: 1px;
      transition: all .25s var(--ease);
    }

    .mobile-cta:hover {
      background: #3FF0D1;
      box-shadow: 0 0 0 4px rgba(45, 225, 194, .15);
    }

    /* ===== Hero ===== */
    .page-hero {
      position: relative;
      padding: 180px 0 80px;
      overflow: hidden;
      background:
        linear-gradient(105deg, rgba(7, 12, 20, .96) 15%, rgba(7, 12, 20, .76) 55%, rgba(7, 12, 20, .60)),
        url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
      border-bottom: 1px solid var(--line);
    }

    .page-hero::before {
      content: "";
      position: absolute;
      top: -120px;
      left: -80px;
      width: 460px;
      height: 460px;
      background: radial-gradient(circle, rgba(45, 225, 194, .07), transparent 70%);
      pointer-events: none;
    }

    .hero-dot-1,
    .hero-dot-2 {
      position: absolute;
      border-radius: 50%;
      pointer-events: none;
    }

    .hero-dot-1 {
      top: 160px;
      right: 18%;
      width: 9px;
      height: 9px;
      background: var(--primary);
      opacity: .5;
    }

    .hero-dot-2 {
      top: 240px;
      right: 27%;
      width: 6px;
      height: 6px;
      background: var(--secondary);
      opacity: .6;
    }

    .breadcrumb {
      font-size: 13px;
      color: var(--text-mid);
      margin-bottom: 24px;
      display: flex;
      align-items: center;
      gap: 8px;
    }

    .breadcrumb a {
      transition: color .2s ease;
    }

    .breadcrumb a:hover {
      color: var(--primary);
    }

    .breadcrumb .sep {
      color: var(--text-low);
    }

    .breadcrumb .current {
      color: var(--text-low);
    }

    .hero-eyebrow {
      font-size: 12px;
      font-weight: 600;
      letter-spacing: 2px;
      color: var(--text-low);
      margin-bottom: 16px;
      text-transform: uppercase;
    }

    .hero-title {
      font-size: 36px;
      font-weight: 700;
      line-height: 1.25;
      letter-spacing: -.3px;
      color: var(--text-high);
      margin-bottom: 16px;
    }

    .hero-title .highlight {
      color: var(--primary);
    }

    .hero-desc {
      font-size: 16px;
      line-height: 1.75;
      color: var(--text-mid);
      max-width: 640px;
      margin-bottom: 24px;
    }

    .hero-trust {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 12px;
      font-size: 13px;
      color: var(--text-low);
    }

    .hero-trust span {
      color: var(--text-mid);
    }

    /* ===== Section ===== */
    .section {
      padding: 80px 0;
    }

    .section-head {
      display: flex;
      align-items: center;
      justify-content: space-between;
      margin-bottom: 40px;
      gap: 24px;
    }

    .section-title {
      font-size: 36px;
      font-weight: 700;
      line-height: 1.25;
      letter-spacing: -.3px;
      color: var(--text-high);
      position: relative;
      padding-left: 20px;
    }

    .section-title::before {
      content: "";
      position: absolute;
      left: 0;
      top: 4px;
      width: 4px;
      height: 28px;
      background: var(--primary);
      border-radius: 2px;
    }

    .section-kicker {
      font-size: 13px;
      letter-spacing: 1px;
      color: var(--text-low);
      white-space: nowrap;
      font-family: "Inter", "DIN Alternate", sans-serif;
    }

    /* ===== Guide ===== */
    .guide-section {
      background: var(--ink-950);
    }

    .guide-item {
      position: relative;
      display: flex;
      gap: 28px;
      padding: 40px;
      background: var(--ink-850);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      margin-bottom: 24px;
      transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
    }

    .guide-item:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(45, 225, 194, .30);
    }

    .guide-index {
      flex: 0 0 40px;
      width: 40px;
      height: 40px;
      border-radius: 10px;
      border: 1.5px solid var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-high);
      font-family: "Inter", "DIN Alternate", sans-serif;
      font-size: 16px;
      font-weight: 700;
      background: transparent;
      transition: background .25s var(--ease), box-shadow .25s var(--ease);
    }

    .guide-item:hover .guide-index {
      background: var(--primary-dim);
      box-shadow: 0 0 0 4px rgba(45, 225, 194, .06);
    }

    .guide-content {
      flex: 1;
      min-width: 0;
    }

    .guide-content h3 {
      font-size: 20px;
      font-weight: 600;
      color: var(--text-high);
      margin-bottom: 10px;
      letter-spacing: .2px;
    }

    .guide-content p {
      color: var(--text-mid);
      font-size: 15px;
      line-height: 1.75;
      margin-bottom: 16px;
      max-width: 720px;
    }

    .guide-steps {
      list-style: none;
      padding: 0;
      margin: 0;
    }

    .guide-steps li {
      position: relative;
      color: var(--text-mid);
      font-size: 15px;
      line-height: 1.8;
      padding-left: 24px;
    }

    .guide-steps li::before {
      content: "→";
      position: absolute;
      left: 0;
      color: var(--primary);
      font-weight: 600;
      font-size: 15px;
    }

    .guide-badge {
      position: absolute;
      top: 18px;
      right: 18px;
      font-size: 12px;
      font-weight: 600;
      padding: 4px 10px;
      border-radius: 6px;
      letter-spacing: .5px;
      border: 1px solid transparent;
    }

    .guide-badge.badge-hot {
      background: rgba(242, 181, 68, .12);
      color: var(--secondary);
      border-color: rgba(242, 181, 68, .2);
    }

    .guide-badge.badge-new {
      background: var(--primary-dim);
      color: var(--primary);
      border-color: rgba(45, 225, 194, .25);
    }

    .guide-figure {
      margin: 8px 0 32px;
      border-radius: var(--radius-md);
      overflow: hidden;
      position: relative;
      box-shadow: var(--shadow-card);
      background: var(--ink-850);
      border: 1px solid var(--line);
    }

    .guide-figure img {
      width: 100%;
      max-height: 320px;
      object-fit: cover;
      display: block;
      transition: transform .6s var(--ease);
    }

    .guide-figure:hover img {
      transform: scale(1.02);
    }

    .guide-figure figcaption {
      font-size: 12px;
      color: var(--text-low);
      text-align: center;
      padding: 12px 16px;
      border-top: 1px solid var(--line);
      background: var(--ink-850);
    }

    /* ===== Features ===== */
    .features-section {
      background: var(--ink-850);
      border-top: 1px solid var(--line);
      border-bottom: 1px solid var(--line);
    }

    .feature-card {
      background: var(--ink-950);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 32px 24px;
      height: 100%;
      transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
    }

    .feature-card:hover {
      transform: translateY(-2px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(45, 225, 194, .3);
    }

    .feature-icon {
      width: 44px;
      height: 44px;
      border-radius: var(--radius-md);
      display: flex;
      align-items: center;
      justify-content: center;
      background: var(--primary-dim);
      color: var(--primary);
      font-size: 18px;
      margin-bottom: 16px;
      transition: transform .25s var(--ease);
    }

    .feature-card:hover .feature-icon {
      transform: scale(1.06);
    }

    .feature-card h3 {
      font-size: 18px;
      font-weight: 600;
      color: var(--text-high);
      margin-bottom: 8px;
    }

    .feature-card p {
      color: var(--text-mid);
      font-size: 14px;
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* ===== Status ===== */
    .status-section {
      background: var(--ink-950);
    }

    .status-panel {
      background: var(--ink-850);
      border: 1px solid var(--line);
      border-radius: var(--radius-lg);
      padding: 40px;
      box-shadow: var(--shadow-card);
    }

    .status-main {
      display: flex;
      align-items: center;
      gap: 12px;
      margin-bottom: 12px;
    }

    .status-dot {
      display: inline-block;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--primary);
      box-shadow: 0 0 0 3px rgba(45, 225, 194, .15);
      animation: pulse 2s infinite;
      flex-shrink: 0;
    }

    @keyframes pulse {
      0% {
        box-shadow: 0 0 0 0 rgba(45, 225, 194, .35);
      }
      70% {
        box-shadow: 0 0 0 6px rgba(45, 225, 194, 0);
      }
      100% {
        box-shadow: 0 0 0 0 rgba(45, 225, 194, 0);
      }
    }

    .status-text {
      font-size: 20px;
      font-weight: 700;
      color: var(--text-high);
      letter-spacing: .3px;
    }

    .status-note {
      color: var(--text-low);
      font-size: 13px;
      line-height: 1.7;
      margin-bottom: 0;
    }

    .status-timeline {
      border-left: 1px solid var(--line);
      margin-left: 6px;
      padding-left: 24px;
      display: flex;
      flex-direction: column;
      gap: 20px;
    }

    .timeline-item {
      display: flex;
      align-items: flex-start;
      gap: 14px;
      position: relative;
    }

    .timeline-dot {
      position: absolute;
      left: -29px;
      top: 6px;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--secondary);
      box-shadow: 0 0 0 3px rgba(242, 181, 68, .15);
      flex-shrink: 0;
    }

    .timeline-item strong {
      display: block;
      font-size: 15px;
      font-weight: 600;
      color: var(--text-high);
      line-height: 1.5;
    }

    .timeline-item span {
      display: block;
      font-size: 13px;
      color: var(--text-mid);
      line-height: 1.6;
    }

    /* ===== FAQ ===== */
    .faq-section {
      background: var(--ink-950);
    }

    .faq-list {
      max-width: 860px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--ink-850);
      border: 1px solid var(--line);
      border-radius: var(--radius-md);
      padding: 20px 24px;
      margin-bottom: 8px;
      transition: border-color .3s var(--ease), background .3s var(--ease);
    }

    .faq-item.open {
      border-color: rgba(45, 225, 194, .4);
    }

    .faq-q {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      font-size: 16px;
      font-weight: 600;
      color: var(--text-high);
      cursor: pointer;
      line-height: 1.5;
      user-select: none;
    }

    .faq-icon {
      width: 22px;
      height: 22px;
      border-radius: 50%;
      border: 1.5px solid var(--primary);
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 11px;
      flex-shrink: 0;
      transition: transform .3s var(--ease), background .3s var(--ease);
    }

    .faq-item.open .faq-icon {
      transform: rotate(135deg);
      background: var(--primary-dim);
    }

    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height .35s var(--ease);
      color: var(--text-mid);
      font-size: 15px;
      line-height: 1.75;
    }

    .faq-a p {
      margin: 0;
    }

    .faq-item.open .faq-a {
      max-height: 360px;
      padding-top: 14px;
    }

    /* ===== CTA ===== */
    .cta-section {
      padding: 80px 0;
      background: var(--ink-950);
    }

    .cta-panel {
      background: var(--primary-dim);
      border: 1px solid rgba(45, 225, 194, .18);
      border-radius: 24px;
      padding: 64px 40px;
      text-align: center;
      position: relative;
      overflow: hidden;
    }

    .cta-panel::before {
      content: "";
      position: absolute;
      top: -80px;
      right: -80px;
      width: 240px;
      height: 240px;
      background: radial-gradient(circle, rgba(45, 225, 194, .08), transparent 70%);
      pointer-events: none;
    }

    .cta-panel h2 {
      font-size: 28px;
      font-weight: 700;
      color: var(--text-high);
      margin-bottom: 12px;
      letter-spacing: -.3px;
    }

    .cta-panel p {
      font-size: 16px;
      color: var(--text-mid);
      max-width: 560px;
      margin: 0 auto 32px;
      line-height: 1.75;
    }

    .btn-secondary {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      height: 48px;
      padding: 0 32px;
      border-radius: var(--radius-pill);
      background: var(--secondary);
      color: #251A02;
      font-size: 15px;
      font-weight: 600;
      letter-spacing: 1px;
      transition: all .25s var(--ease);
    }

    .btn-secondary:hover {
      background: #FFC55C;
      color: #251A02;
      box-shadow: 0 0 0 4px rgba(242, 181, 68, .15);
    }

    .btn-secondary i {
      font-size: 13px;
      transition: transform .25s var(--ease);
    }

    .btn-secondary:hover i {
      transform: translateX(4px);
    }

    /* ===== Footer ===== */
    .site-footer {
      background: #040810;
      border-top: 1px solid var(--line);
      padding: 56px 0 32px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1.2fr;
      gap: 48px;
    }

    .footer-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      margin-bottom: 16px;
    }

    .footer-brand-mark {
      width: 28px;
      height: 28px;
      border-radius: 50%;
      border: 1.5px solid var(--primary);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      color: var(--primary);
      font-size: 14px;
      font-weight: 600;
    }

    .footer-brand-name {
      font-size: 18px;
      font-weight: 700;
      color: var(--text-high);
      letter-spacing: .5px;
    }

    .footer-slogan {
      font-size: 14px;
      color: var(--text-mid);
      line-height: 1.7;
      margin-bottom: 16px;
      max-width: 320px;
    }

    .footer-copy {
      font-size: 12px;
      color: var(--text-low);
      line-height: 1.6;
      margin-bottom: 0;
    }

    .footer-col h4 {
      font-size: 15px;
      font-weight: 600;
      color: var(--text-high);
      margin-bottom: 16px;
      letter-spacing: .5px;
    }

    .footer-col a {
      display: block;
      font-size: 14px;
      color: var(--text-mid);
      line-height: 2;
      transition: color .2s ease, padding-left .2s ease;
    }

    .footer-col a:hover {
      color: var(--primary);
      padding-left: 4px;
    }

    .footer-legal {
      font-size: 12px;
      color: var(--text-low);
      line-height: 1.7;
      margin-bottom: 0;
    }

    /* ===== Focus / Misc ===== */
    .section-kicker,
    .hero-eyebrow {
      font-family: "Inter", "DIN Alternate", "PingFang SC", sans-serif;
    }

    ::selection {
      background: rgba(45, 225, 194, .25);
      color: var(--text-high);
    }

    /* ===== Responsive ===== */
    @media screen and (max-width: 1024px) {
      .grid-container {
        max-width: 90%;
      }

      .nav-links {
        gap: 18px;
        padding-left: 12px;
      }
    }

    @media screen and (max-width: 820px) {
      .nav-links {
        display: none;
      }

      .header-cta {
        display: none;
      }

      .hamburger {
        display: flex;
      }

      .header-inner {
        width: min(100%, 640px);
        padding-left: 16px;
      }

      .brand-name {
        font-size: 16px;
      }

      .page-hero {
        padding: 140px 0 60px;
      }

      .section {
        padding: 56px 0;
      }

      .section-head {
        flex-direction: column;
        align-items: flex-start;
        margin-bottom: 32px;
        gap: 8px;
      }

      .section-title {
        font-size: 26px;
      }

      .section-kicker {
        font-size: 12px;
      }

      .guide-item {
        flex-direction: column;
        padding: 28px 24px;
        gap: 16px;
      }

      .guide-index {
        flex: 0 0 auto;
      }

      .guide-badge {
        top: 14px;
        right: 14px;
      }

      .guide-figure img {
        max-height: 220px;
      }

      .status-panel {
        padding: 28px 24px;
      }

      .status-timeline {
        margin-top: 28px;
        margin-left: 0;
        padding-left: 0;
        border-left: none;
      }

      .timeline-item {
        padding-left: 28px;
      }

      .timeline-dot {
        left: 0;
      }

      .cta-panel {
        padding: 48px 24px;
      }

      .cta-panel h2 {
        font-size: 24px;
      }

      .footer-grid {
        grid-template-columns: 1fr;
        gap: 32px;
      }
    }

    @media screen and (max-width: 520px) {
      .grid-container {
        max-width: calc(100% - 32px);
      }

      .header-inner {
        width: 100%;
        height: 56px;
      }

      .brand-mark {
        width: 24px;
        height: 24px;
        font-size: 12px;
      }

      .brand-name {
        font-size: 15px;
      }

      .mobile-menu {
        top: 12px;
        left: 16px;
        right: 16px;
      }

      .mobile-nav a {
        font-size: 22px;
      }

      .page-hero {
        padding: 120px 0 48px;
      }

      .hero-eyebrow {
        font-size: 11px;
      }

      .hero-title {
        font-size: 29px;
      }

      .hero-desc {
        font-size: 15px;
      }

      .hero-trust {
        font-size: 12px;
      }

      .section-title {
        font-size: 24px;
      }

      .guide-content h3 {
        font-size: 18px;
      }

      .guide-content p,
      .guide-steps li {
        font-size: 14px;
      }

      .feature-card {
        padding: 24px 20px;
      }

      .status-text {
        font-size: 18px;
      }

      .cta-panel {
        padding: 40px 20px;
        border-radius: 18px;
      }

      .cta-panel h2 {
        font-size: 22px;
      }

      .btn-secondary {
        height: 44px;
        padding: 0 24px;
        font-size: 14px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
        scroll-behavior: auto !important;
      }
    }

/* roulang page: category2 */
:root{
  --ink-950:#070C14;
  --ink-850:#0D1520;
  --ink-750:#131E2E;
  --line:rgba(148,180,220,.12);
  --line-strong:rgba(148,180,220,.25);
  --primary:#2DE1C2;
  --primary-dim:rgba(45,225,194,.10);
  --primary-hover:#3FF0D1;
  --secondary:#F2B544;
  --secondary-dim:rgba(242,181,68,.12);
  --text-high:#F0F3F8;
  --text-mid:#9DB1C7;
  --text-low:#5E748C;
  --radius-card:16px;
  --radius-btn:999px;
  --radius-input:10px;
  --radius-img:12px;
  --shadow-card:0 4px 20px rgba(0,0,0,.30);
  --shadow-card-hover:0 8px 32px rgba(0,0,0,.45);
  --transition:cubic-bezier(.4,0,.2,1) .25s;
  --font-cn:"PingFang SC","HarmonyOS Sans SC","MiSans","Source Han Sans SC","Noto Sans CJK SC","Microsoft YaHei",sans-serif;
  --font-num:"Inter","DIN Alternate","Roboto",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-cn);background:var(--ink-950);color:var(--text-high);line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased;overflow-x:hidden}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:var(--primary-hover)}
button{font-family:var(--font-cn);cursor:pointer;border:none;background:none}
input,textarea{font-family:var(--font-cn)}
ul,ol{list-style:none}
::selection{background:var(--primary);color:#06251F}
:focus-visible{outline:2px solid var(--primary);outline-offset:3px}
@media (prefers-reduced-motion:reduce){
  *{animation:none!important;transition:none!important}
}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-head{display:flex;align-items:center;justify-content:space-between;margin-bottom:40px}
.section-head .kicker{font-size:13px;color:var(--text-low);letter-spacing:2px;font-weight:600}
.section-title{display:flex;align-items:center;gap:16px;font-size:36px;line-height:1.25;font-weight:700;letter-spacing:-.3px;color:var(--text-high)}
.section-title::before{content:"";width:4px;height:28px;background:var(--primary);border-radius:2px}
.text-primary{color:var(--primary)}
.text-mid{color:var(--text-mid)}
.text-low{color:var(--text-low)}
/* ===== Header Navigation ===== */
.site-header{position:fixed;top:16px;left:0;right:0;z-index:100;padding:0 4%}
.nav-container{max-width:1200px;margin:0 auto;height:64px;display:flex;align-items:center;justify-content:space-between;padding:0 24px;background:rgba(7,12,20,.5);border:1px solid rgba(148,180,220,.14);border-radius:999px;backdrop-filter:blur(20px);-webkit-backdrop-filter:blur(20px);transition:background .3s ease}
.site-header.scrolled .nav-container{background:rgba(7,12,20,.72)}
.brand{display:flex;align-items:center;gap:10px;flex-shrink:0}
.brand-mark{width:28px;height:28px;border-radius:50%;border:1.5px solid var(--primary);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:var(--primary);background:var(--primary-dim)}
.brand-name{font-size:18px;font-weight:700;color:var(--text-high);letter-spacing:.5px;white-space:nowrap}
.nav-links{display:flex;align-items:center;gap:32px}
.nav-link{font-size:15px;font-weight:500;color:var(--text-mid);letter-spacing:.5px;position:relative;padding:6px 2px;transition:color .2s ease}
.nav-link:hover{color:var(--text-high)}
.nav-link.active{color:var(--text-high);font-weight:600}
.nav-link.active::after{content:"";position:absolute;left:50%;bottom:-2px;transform:translateX(-50%);width:6px;height:6px;border-radius:50%;background:var(--primary)}
.nav-cta{display:inline-flex;align-items:center;justify-content:center;height:40px;padding:0 24px;background:var(--primary);color:#06251F;font-size:15px;font-weight:600;border-radius:999px;letter-spacing:.5px;transition:background .2s ease,box-shadow .2s ease;flex-shrink:0}
.nav-cta:hover{background:var(--primary-hover);color:#06251F;box-shadow:0 0 0 4px rgba(45,225,194,.15)}
.nav-toggle{display:none;width:40px;height:40px;border-radius:50%;border:1px solid var(--line);align-items:center;justify-content:center;flex-direction:column;gap:5px;transition:border-color .2s}
.nav-toggle span{display:block;width:16px;height:2px;background:var(--text-mid);border-radius:2px;transition:background .2s}
.nav-toggle:hover span{background:var(--text-high)}
/* Mobile menu */
.mobile-menu{position:fixed;top:0;left:0;right:0;bottom:0;z-index:200;background:rgba(7,12,20,.94);backdrop-filter:blur(20px);display:flex;flex-direction:column;align-items:center;justify-content:center;gap:8px;opacity:0;visibility:hidden;transition:opacity .25s ease,visibility .25s ease}
.mobile-menu.open{opacity:1;visibility:visible}
.mobile-close{position:absolute;top:24px;right:24px;width:44px;height:44px;border-radius:50%;border:1px solid var(--line);color:var(--text-mid);font-size:22px;display:flex;align-items:center;justify-content:center;transition:border-color .2s,color .2s}
.mobile-close:hover{border-color:var(--primary);color:var(--primary)}
.mobile-link{font-size:24px;font-weight:600;color:var(--text-high);line-height:2;padding:8px 0;transition:color .2s}
.mobile-link:hover{color:var(--primary)}
.mobile-link.active{color:var(--primary)}
.mobile-cta{display:flex;align-items:center;justify-content:center;width:calc(100% - 48px);max-width:360px;height:48px;margin-top:24px;background:var(--primary);color:#06251F;font-size:16px;font-weight:600;border-radius:999px;transition:background .2s}
.mobile-cta:hover{background:var(--primary-hover);color:#06251F}
/* ===== Breadcrumb ===== */
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-mid);margin-bottom:20px;flex-wrap:wrap}
.breadcrumb a{color:var(--text-mid);transition:color .2s}
.breadcrumb a:hover{color:var(--primary)}
.breadcrumb .sep{color:var(--text-low)}
.breadcrumb .current{color:var(--text-low)}
/* ===== Page Hero ===== */
.page-hero{padding:160px 0 48px;position:relative;background:radial-gradient(ellipse at 20% 20%,rgba(45,225,194,.06),transparent 55%)}
.page-hero .eyebrow{display:inline-flex;align-items:center;gap:8px;font-size:12px;font-weight:600;letter-spacing:2px;color:var(--text-low);margin-bottom:16px}
.page-hero .eyebrow .dot{width:6px;height:6px;border-radius:50%;background:var(--primary);box-shadow:0 0 8px var(--primary)}
.page-hero h1{font-size:36px;line-height:1.3;font-weight:700;letter-spacing:-.3px;color:var(--text-high);margin-bottom:16px}
.page-hero .lead{font-size:16px;line-height:1.75;color:var(--text-mid);max-width:680px;margin-bottom:8px}
/* ===== Cards common ===== */
.card{background:var(--ink-850);border:1px solid var(--line);border-radius:var(--radius-card);transition:transform .2s ease,box-shadow .2s ease,border-color .2s ease}
.card:hover{transform:translateY(-2px);box-shadow:var(--shadow-card-hover);border-color:rgba(45,225,194,.3)}
/* ===== Q&A Top Section ===== */
.qa-top{padding:48px 0}
.qa-top .card{padding:36px}
.qa-main-card{position:relative;overflow:hidden}
.qa-main-card::before{content:"";position:absolute;left:0;top:0;bottom:0;width:4px;background:var(--primary)}
.qa-main-card .card-head{display:flex;align-items:flex-start;justify-content:space-between;gap:24px;margin-bottom:24px}
.qa-main-card h3{font-size:20px;font-weight:700;color:var(--text-high);line-height:1.4}
.qa-main-card .thumb-wrap{width:80px;height:80px;border-radius:50%;overflow:hidden;flex-shrink:0;border:1px solid var(--line)}
.qa-main-card .thumb-wrap img{width:100%;height:100%;object-fit:cover}
.qa-list-slim li{display:flex;align-items:center;gap:12px;padding:14px 0;border-bottom:1px solid var(--line)}
.qa-list-slim li:last-child{border-bottom:none}
.qa-list-slim .num{font-family:var(--font-num);font-size:14px;font-weight:700;color:var(--primary);min-width:28px;height:28px;border-radius:8px;background:var(--primary-dim);display:flex;align-items:center;justify-content:center}
.qa-list-slim .txt{font-size:15px;color:var(--text-high);font-weight:500;transition:color .2s}
.qa-list-slim li:hover .txt{color:var(--primary)}
.qa-list-slim .arrow{margin-left:auto;color:var(--text-low);font-size:14px;transition:transform .2s,color .2s}
.qa-list-slim li:hover .arrow{color:var(--primary);transform:translateX(4px)}
/* News small card */
.news-mini-card{padding:28px;position:relative}
.news-mini-card .badge-new{position:absolute;top:-10px;right:24px;background:var(--primary-dim);color:var(--primary);font-size:12px;font-weight:700;padding:4px 12px;border-radius:6px;border:1px solid rgba(45,225,194,.2)}
.news-mini-card h3{font-size:18px;font-weight:700;color:var(--text-high);margin-bottom:16px}
.news-mini-list li{display:flex;gap:12px;align-items:flex-start;padding:12px 0;border-bottom:1px solid var(--line)}
.news-mini-list li:last-child{border-bottom:none}
.news-mini-list i{color:var(--secondary);font-size:6px;margin-top:8px}
.news-mini-list .news-txt{font-size:14px;color:var(--text-mid);line-height:1.6}
.news-mini-list .news-txt strong{color:var(--text-high);font-weight:600;display:block;margin-bottom:2px}
.news-mini-list .news-date{font-size:12px;color:var(--text-low)}
/* ===== Service Status ===== */
.service-status{padding:48px 0}
.status-panel{background:var(--ink-850);border:1px solid var(--line);border-radius:24px;padding:48px;position:relative;overflow:hidden}
.status-panel::before{content:"";position:absolute;right:-60px;top:-60px;width:200px;height:200px;border-radius:50%;background:radial-gradient(circle,rgba(45,225,194,.05),transparent 70%)}
.status-panel .status-head{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:16px;margin-bottom:32px}
.status-panel .status-head h3{font-size:24px;font-weight:700;color:var(--text-high)}
.status-light{display:inline-flex;align-items:center;gap:10px;font-size:14px;font-weight:600;color:var(--text-high);background:var(--primary-dim);padding:8px 18px;border-radius:999px;border:1px solid rgba(45,225,194,.2)}
.status-light .pulse{width:8px;height:8px;border-radius:50%;background:var(--primary);position:relative}
.status-light .pulse::after{content:"";position:absolute;inset:-4px;border-radius:50%;border:2px solid rgba(45,225,194,.4);animation:pulse 2s ease-out infinite}
@keyframes pulse{0%{transform:scale(.6);opacity:1}100%{transform:scale(1.4);opacity:0}}
.timeline{position:relative;padding-left:28px}
.timeline::before{content:"";position:absolute;left:8px;top:8px;bottom:8px;width:1px;background:var(--line)}
.timeline-item{position:relative;padding:16px 0 16px 20px;border-bottom:1px solid var(--line)}
.timeline-item:last-child{border-bottom:none}
.timeline-item::before{content:"";position:absolute;left:-24px;top:22px;width:10px;height:10px;border-radius:50%;background:var(--ink-950);border:2px solid var(--primary)}
.timeline-item .time-label{font-size:13px;color:var(--secondary);font-weight:600;letter-spacing:.5px;margin-bottom:4px}
.timeline-item .time-title{font-size:16px;font-weight:600;color:var(--text-high);margin-bottom:4px}
.timeline-item .time-desc{font-size:14px;color:var(--text-mid);line-height:1.6}
/* ===== FAQ Section ===== */
.faq-section{padding:48px 0}
.faq-list{max-width:860px;margin:0 auto}
.faq-item{background:var(--ink-850);border:1px solid var(--line);border-radius:12px;margin-bottom:8px;transition:border-color .3s ease,background .3s ease;overflow:hidden}
.faq-item.open{border-color:var(--primary);background:var(--ink-750)}
.faq-q{width:100%;display:flex;align-items:center;justify-content:space-between;gap:16px;padding:20px 24px;text-align:left;color:var(--text-high);font-size:16px;font-weight:600;transition:color .2s}
.faq-q:hover{color:var(--primary)}
.faq-icon{width:24px;height:24px;border-radius:50%;border:1.5px solid var(--primary);display:flex;align-items:center;justify-content:center;font-size:16px;color:var(--primary);font-weight:400;flex-shrink:0;transition:transform .3s ease,background .3s ease}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#06251F}
.faq-a{max-height:0;overflow:hidden;transition:max-height .3s ease}
.faq-a-inner{padding:0 24px 20px;color:var(--text-mid);font-size:15px;line-height:1.75}
/* ===== CTA Block ===== */
.cta-block{padding:48px 0}
.cta-panel{background:var(--primary-dim);border:1px solid rgba(45,225,194,.15);border-radius:24px;padding:56px 48px;text-align:center;position:relative;overflow:hidden}
.cta-panel::after{content:"";position:absolute;right:-40px;bottom:-40px;width:160px;height:160px;border-radius:50%;background:radial-gradient(circle,rgba(45,225,194,.1),transparent 70%)}
.cta-panel h2{font-size:32px;font-weight:700;color:var(--text-high);margin-bottom:12px}
.cta-panel p{font-size:16px;color:var(--text-mid);max-width:520px;margin:0 auto 28px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;height:48px;padding:0 32px;border-radius:999px;font-size:15px;font-weight:600;letter-spacing:.5px;transition:background .2s ease,box-shadow .2s ease,border-color .2s ease,color .2s ease;border:none}
.btn-primary{background:var(--primary);color:#06251F}
.btn-primary:hover{background:var(--primary-hover);color:#06251F;box-shadow:0 0 0 4px rgba(45,225,194,.15)}
.btn-secondary{background:var(--secondary);color:#251A02}
.btn-secondary:hover{background:#ffc55a;color:#251A02;box-shadow:0 0 0 4px rgba(242,181,68,.18)}
.btn-ghost{background:transparent;border:1px solid var(--line);color:var(--text-mid)}
.btn-ghost:hover{border-color:var(--primary);color:var(--text-high)}
/* ===== Footer ===== */
.site-footer{background:#040810;border-top:1px solid var(--line);padding:48px 0 24px;margin-top:48px}
.footer-grid{display:grid;grid-template-columns:1.4fr 1fr 1.2fr;gap:48px;padding:24px 0}
.footer-logo{display:flex;align-items:center;gap:10px;margin-bottom:12px}
.footer-logo .brand-mark{width:28px;height:28px;border-radius:50%;border:1.5px solid var(--primary);display:flex;align-items:center;justify-content:center;font-size:14px;font-weight:700;color:var(--primary);background:var(--primary-dim)}
.footer-slogan{font-size:14px;color:var(--text-mid);line-height:1.7;margin-bottom:16px;max-width:320px}
.footer-copy{font-size:12px;color:var(--text-low);line-height:1.6}
.footer-col h4{font-size:14px;font-weight:600;color:var(--text-high);margin-bottom:16px;letter-spacing:.5px}
.footer-col a{display:block;font-size:14px;color:var(--text-mid);padding:6px 0;transition:color .2s}
.footer-col a:hover{color:var(--primary)}
.footer-legal{font-size:12px;color:var(--text-low);line-height:1.6}
/* ===== Responsive ===== */
@media (max-width:1024px){
  .container{padding:0 32px 0 32px;max-width:100%}
  .nav-links{display:none}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .section{padding:48px 0}
  .section-title{font-size:28px}
  .page-hero{padding:140px 0 32px}
  .page-hero h1{font-size:28px}
  .cta-panel{padding:40px 24px}
  .cta-panel h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
}
@media (max-width:640px){
  .container{padding:0 20px}
  .section{padding:40px 0}
  .section-title{font-size:22px}
  .page-hero{padding:120px 0 24px}
  .page-hero h1{font-size:24px}
  .page-hero .lead{font-size:15px}
  .qa-top .card,.news-mini-card{padding:24px 20px}
  .qa-main-card .card-head{flex-direction:column-reverse;align-items:flex-start}
  .status-panel{padding:28px 20px}
  .timeline{padding-left:20px}
  .timeline-item::before{left:-20px}
  .cta-panel{padding:32px 20px;border-radius:16px}
  .cta-panel h2{font-size:22px}
  .footer-grid{grid-template-columns:1fr;gap:24px}
  .btn{width:100%;justify-content:center}
}