/* roulang page: index */
:root{
  --primary:#0a1628;
  --primary-2:#0d1b2a;
  --primary-3:#14273e;
  --accent:#00e5a0;
  --accent-2:#00b8ff;
  --bg:#f4f7fb;
  --bg-soft:#eef3f9;
  --text:#1e2a3a;
  --text-2:#5a6b7f;
  --border:#e3e9f0;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:8px;
  --shadow:0 10px 30px rgba(10,22,40,.08);
  --shadow-hover:0 18px 44px rgba(10,22,40,.16);
  --shadow-glow:0 0 28px rgba(0,229,160,.35);
  --space-section:96px;
  --space-block:64px;
  --transition:all .3s ease;
  --font-base:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-base);background:var(--bg);color:var(--text);line-height:1.7;font-size:16px}
img{max-width:100%;display:block}
a{text-decoration:none;color:inherit;transition:var(--transition)}
button,input,textarea,select{font-family:inherit;font-size:inherit}
.container{max-width:1200px;margin:0 auto;padding:0 24px;width:100%}
/* ---------- 头部导航 ---------- */
.site-header{
  background:linear-gradient(135deg,#060d1a 0%,#0d1b2a 55%,#0f2033 100%);
  border-bottom:2px solid var(--accent);
  box-shadow:0 2px 26px rgba(0,229,160,.12);
  position:sticky;top:0;z-index:1000;
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:24px}
.logo{display:flex;align-items:center;gap:10px;font-size:1.45rem;font-weight:800;color:#fff;letter-spacing:.5px;white-space:nowrap}
.logo .logo-icon{width:36px;height:36px;border-radius:10px;background:linear-gradient(135deg,var(--accent),var(--accent-2));display:flex;align-items:center;justify-content:center;color:#06211a;font-size:1.1rem;box-shadow:0 0 18px rgba(0,229,160,.5)}
.logo span{color:var(--accent)}
.nav{display:flex;align-items:center;gap:6px;flex-wrap:wrap}
.nav a{
  color:#b8c4d4;font-weight:500;font-size:.93rem;padding:8px 16px;border-radius:9px;
  transition:var(--transition);position:relative;white-space:nowrap;
}
.nav a:hover{color:#fff;background:rgba(255,255,255,.07)}
.nav a.active{color:var(--accent);text-shadow:0 0 14px rgba(0,229,160,.5);background:rgba(0,229,160,.08);box-shadow:inset 0 -2px 0 var(--accent)}
.nav-cta{
  background:linear-gradient(135deg,var(--accent),var(--accent-2))!important;color:#06211a!important;font-weight:700;border-radius:30px;padding:9px 22px!important;
  box-shadow:0 4px 18px rgba(0,229,160,.3);
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 7px 26px rgba(0,229,160,.45);color:#06211a!important}
.menu-toggle{display:none;background:none;border:0;color:#fff;font-size:1.5rem;cursor:pointer;padding:6px 10px;border-radius:8px}
.menu-toggle:hover{background:rgba(255,255,255,.08)}
/* ---------- HERO ---------- */
.hero{
  position:relative;color:#fff;min-height:620px;display:flex;align-items:center;overflow:hidden;
  background:
    linear-gradient(120deg,rgba(6,13,26,.92) 0%,rgba(10,22,40,.82) 48%,rgba(0,50,40,.45) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
}
.hero::after{
  content:'';position:absolute;bottom:-2px;left:0;right:0;height:6px;
  background:linear-gradient(90deg,var(--accent),var(--accent-2),transparent);
}
.hero-inner{max-width:780px;padding:70px 0;position:relative;z-index:2}
.hero .badge-hero{
  display:inline-flex;align-items:center;gap:8px;background:rgba(0,229,160,.12);border:1px solid rgba(0,229,160,.35);
  color:var(--accent);padding:6px 18px;border-radius:40px;font-size:.85rem;font-weight:600;letter-spacing:1px;margin-bottom:26px;
  box-shadow:0 0 20px rgba(0,229,160,.15);
}
.hero h1{
  font-size:clamp(2.2rem,5vw,3.6rem);font-weight:800;line-height:1.2;margin-bottom:22px;
  text-shadow:0 4px 30px rgba(0,0,0,.4);
}
.hero h1 .gradient-text{
  background:linear-gradient(90deg,var(--accent),var(--accent-2));
  -webkit-background-clip:text;background-clip:text;-webkit-text-fill-color:transparent;
}
.hero p{font-size:1.12rem;color:rgba(255,255,255,.85);max-width:640px;margin-bottom:36px;line-height:1.8}
.hero-actions{display:flex;gap:16px;flex-wrap:wrap}
/* ---------- 按钮 ---------- */
.btn{
  display:inline-flex;align-items:center;gap:8px;padding:13px 30px;border-radius:12px;font-weight:700;
  font-size:.95rem;transition:var(--transition);cursor:pointer;border:2px solid transparent;text-align:center;
}
.btn-primary{background:linear-gradient(135deg,var(--accent),#00c98a);color:#06211a;box-shadow:0 8px 28px rgba(0,229,160,.3)}
.btn-primary:hover{transform:translateY(-3px);box-shadow:0 14px 36px rgba(0,229,160,.45)}
.btn-outline{border-color:rgba(255,255,255,.55);color:#fff;background:rgba(0,0,0,.15);backdrop-filter:blur(8px)}
.btn-outline:hover{border-color:var(--accent);color:var(--accent);box-shadow:0 6px 24px rgba(0,229,160,.25)}
.btn-accent{background:rgba(0,229,160,.14);border-color:var(--accent);color:var(--accent)}
.btn-accent:hover{background:rgba(0,229,160,.24);box-shadow:0 8px 26px rgba(0,229,160,.25)}
/* ---------- 通用板块 ---------- */
.section{padding:var(--space-section) 0}
.section-light{background:var(--bg)}
.section-soft{background:var(--bg-soft)}
.section-dark{background:linear-gradient(160deg,#0a1628,#0d1b2a);color:#fff}
.section-head{max-width:720px;margin:0 auto var(--space-block);text-align:center}
.section-badge{
  display:inline-block;background:rgba(0,229,160,.12);color:#00b87a;border:1px solid rgba(0,229,160,.25);
  padding:4px 16px;border-radius:40px;font-size:.8rem;font-weight:700;letter-spacing:1px;margin-bottom:16px;
}
.section-title{font-size:clamp(1.7rem,3.4vw,2.5rem);font-weight:800;line-height:1.3;margin-bottom:16px;color:var(--text)}
.section-dark .section-title{color:#fff}
.section-sub{font-size:1rem;color:var(--text-2);line-height:1.8}
.section-dark .section-sub{color:rgba(255,255,255,.7)}
/* ---------- 卡片 ---------- */
.card{
  background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:28px;height:100%;
  transition:var(--transition);border:1px solid rgba(255,255,255,.6);
}
.card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.card-icon{
  width:56px;height:56px;border-radius:16px;display:flex;align-items:center;justify-content:center;
  font-size:1.4rem;color:#fff;margin-bottom:20px;
}
.card-icon.green{background:linear-gradient(135deg,#00e5a0,#00b873)}
.card-icon.blue{background:linear-gradient(135deg,#00b8ff,#0078d4)}
.card-icon.purple{background:linear-gradient(135deg,#b980ff,#7b3ff0)}
.card h3{font-size:1.22rem;font-weight:700;margin-bottom:12px;color:var(--text)}
.card p{color:var(--text-2);font-size:.94rem;line-height:1.75}
.card-more{display:inline-flex;align-items:center;gap:6px;margin-top:18px;color:#00b87a;font-weight:650;font-size:.9rem}
.card-more:hover{gap:12px;color:#0088e0}
/* ---------- 分类卡片 ---------- */
.cat-card{
  background:#fff;border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);height:100%;
  transition:var(--transition);position:relative;
}
.cat-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-hover)}
.cat-card-img{position:relative;overflow:hidden;height:210px}
.cat-card-img img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.cat-card:hover .cat-card-img img{transform:scale(1.06)}
.cat-card-img::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(10,22,40,.5),transparent)}
.cat-card-body{padding:26px;text-align:center}
.cat-card-body h3{font-size:1.25rem;font-weight:800;color:var(--text);margin-bottom:8px}
.cat-card-body p{color:var(--text-2);font-size:.9rem;line-height:1.7;margin-bottom:18px}
.cat-card-body .btn{padding:10px 26px;font-size:.88rem}
/* ---------- 数据统计 ---------- */
.stats-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:32px;padding:20px 0}
.stat-item{text-align:center;padding:30px 20px;background:rgba(255,255,255,.04);border:1px solid rgba(255,255,255,.08);border-radius:var(--radius-lg);transition:var(--transition)}
.stat-item:hover{background:rgba(255,255,255,.08);transform:translateY(-4px)}
.stat-num{font-size:2.6rem;font-weight:800;color:var(--accent);line-height:1.2;font-family:"DIN Alternate",var(--font-base)}
.stat-label{margin-top:10px;color:rgba(255,255,255,.7);font-size:.92rem;letter-spacing:1px}
/* ---------- 资讯列表 ---------- */
.news-layout{display:grid;grid-template-columns:1fr 1.6fr;gap:40px;align-items:start}
.news-feature{
  background:linear-gradient(150deg,#0d1b2a,#14273e);color:#fff;border-radius:var(--radius-lg);
  padding:34px;position:relative;overflow:hidden;min-height:320px;display:flex;flex-direction:column;justify-content:flex-end;
}
.news-feature::after{content:'';position:absolute;top:-60px;right:-60px;width:180px;height:180px;border-radius:50%;background:radial-gradient(circle,var(--accent),transparent 70%);opacity:.15}
.news-feature .tag{display:inline-block;background:rgba(0,229,160,.2);color:var(--accent);padding:3px 14px;border-radius:30px;font-size:.78rem;font-weight:700;margin-bottom:14px;width:fit-content}
.news-feature h3{font-size:1.35rem;font-weight:700;margin-bottom:12px;line-height:1.4}
.news-feature p{color:rgba(255,255,255,.72);font-size:.9rem}
.news-list{display:flex;flex-direction:column;gap:14px}
.news-item{
  display:flex;align-items:center;gap:16px;background:#fff;border-radius:var(--radius-md);padding:18px 20px;
  box-shadow:var(--shadow);transition:var(--transition);border-left:3px solid transparent;
}
.news-item:hover{transform:translateX(6px);box-shadow:var(--shadow-hover);border-left-color:var(--accent)}
.news-item .cat-tag{
  flex-shrink:0;background:rgba(0,229,160,.1);color:#00a56e;border-radius:6px;padding:3px 12px;font-size:.76rem;font-weight:700;
}
.news-item .title{flex:1;color:var(--text);font-weight:600;font-size:.95rem;line-height:1.5;overflow:hidden;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.news-item .date{color:var(--text-2);font-size:.8rem;white-space:nowrap;flex-shrink:0}
.empty-tip{text-align:center;padding:40px;color:var(--text-2);background:#fff;border-radius:var(--radius-lg)}
/* ---------- 流程 ---------- */
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:28px}
.step{position:relative;background:#fff;border-radius:var(--radius-lg);padding:34px 24px;box-shadow:var(--shadow);transition:var(--transition);text-align:center}
.step:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover)}
.step-num{
  width:52px;height:52px;border-radius:50%;background:linear-gradient(135deg,var(--accent),var(--accent-2));
  color:#06211a;font-weight:800;font-size:1.3rem;display:flex;align-items:center;justify-content:center;margin:0 auto 18px;box-shadow:0 6px 18px rgba(0,229,160,.35);
}
.step h4{font-size:1.05rem;font-weight:700;color:var(--text);margin-bottom:8px}
.step p{color:var(--text-2);font-size:.87rem;line-height:1.65}
/* ---------- FAQ ---------- */
.faq-grid{max-width:860px;margin:0 auto;display:flex;flex-direction:column;gap:16px}
.faq-item{background:#fff;border-radius:var(--radius-md);box-shadow:var(--shadow);overflow:hidden;border:1px solid var(--border);transition:var(--transition)}
.faq-item.open{box-shadow:var(--shadow-hover)}
.faq-q{display:flex;justify-content:space-between;align-items:center;padding:22px 26px;cursor:pointer;font-weight:650;color:var(--text);font-size:1rem;gap:16px}
.faq-q i{color:var(--accent);font-size:.9rem;transition:var(--transition);flex-shrink:0}
.faq-item.open .faq-q i{transform:rotate(180deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height .4s ease;padding:0 26px;color:var(--text-2);font-size:.93rem;line-height:1.8}
.faq-item.open .faq-a{max-height:300px;padding:0 26px 22px}
/* ---------- CTA ---------- */
.cta-section{
  background:linear-gradient(135deg,#0a1628,#0d1b2a),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  background-blend-mode:overlay;color:#fff;text-align:center;padding:90px 0;position:relative;
}
.cta-section h2{font-size:clamp(1.6rem,3vw,2.4rem);font-weight:800;margin-bottom:18px}
.cta-section p{color:rgba(255,255,255,.7);max-width:680px;margin:0 auto 34px;font-size:1rem;line-height:1.8}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
/* ---------- 页脚 ---------- */
.site-footer{background:#060d1a;color:rgba(255,255,255,.65);padding:70px 0 28px;border-top:2px solid rgba(0,229,160,.25)}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr 1fr;gap:48px;padding-bottom:48px;border-bottom:1px solid rgba(255,255,255,.07)}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:.9rem;line-height:1.8;max-width:320px}
.footer-col h4{color:#fff;font-size:1rem;margin-bottom:18px;font-weight:700}
.footer-col ul{list-style:none;display:flex;flex-direction:column;gap:10px}
.footer-col a{color:rgba(255,255,255,.6);font-size:.88rem;transition:var(--transition)}
.footer-col a:hover{color:var(--accent);padding-left:4px}
.footer-bottom{padding-top:28px;display:flex;flex-wrap:wrap;gap:12px;justify-content:space-between;align-items:center}
.footer-bottom p{font-size:.82rem;color:rgba(255,255,255,.4)}
/* ---------- 内页通用 ---------- */
.page-hero{
  background:linear-gradient(120deg,rgba(6,13,26,.9),rgba(10,22,40,.75)),url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  color:#fff;padding:70px 0;border-bottom:3px solid var(--accent);
}
.page-hero h1{font-size:clamp(1.8rem,4vw,2.8rem);font-weight:800;margin-bottom:14px}
.page-hero p{color:rgba(255,255,255,.78);font-size:1rem;max-width:640px}
.breadcrumb{font-size:.83rem;color:rgba(255,255,255,.55);margin-bottom:18px;display:flex;gap:8px;flex-wrap:wrap}
.breadcrumb a{color:var(--accent)}
/* ---------- 响应式 ---------- */
@media (max-width:1024px){
  :root{--space-section:80px}
  .stats-wrap{grid-template-columns:repeat(2,1fr);gap:20px}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .footer-grid{grid-template-columns:1fr 1fr;gap:36px}
}
@media (max-width:768px){
  .header-inner{height:64px}
  .menu-toggle{display:block}
  .nav{
    position:fixed;top:64px;left:0;right:0;background:#0d1b2a;flex-direction:column;align-items:flex-start;
    padding:18px 24px;gap:4px;border-bottom:2px solid var(--accent);transform:translateX(100%);transition:var(--transition);
    box-shadow:0 18px 40px rgba(0,0,0,.3);
  }
  .nav.open{transform:translateX(0)}
  .nav a{width:100%;padding:12px 16px;font-size:1rem}
  .nav-cta{margin-top:8px;text-align:center}
  .nav{flex-wrap:nowrap}
  .hero{min-height:520px}
  .hero-actions .btn{width:100%;justify-content:center}
  .news-layout{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr 1fr}
  .footer-grid{grid-template-columns:1fr}
  :root{--space-section:60px}
}
@media (max-width:520px){
  .container{padding:0 18px}
  .hero{min-height:480px}
  .hero h1{font-size:2rem}
  .hero p{font-size:.98rem}
  .stats-wrap{grid-template-columns:1fr 1fr;gap:14px}
  .steps-grid{grid-template-columns:1fr}
  .card{padding:22px}
  .news-item{flex-wrap:wrap;gap:8px}
  .news-item .cat-tag{order:1}
  .news-item .title{order:3;flex-basis:100%}
  .news-item .date{order:2;margin-left:auto}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* roulang page: category1 */
:root {
      --bg: #080c1a;
      --bg-soft: #0e1428;
      --panel: #141c36;
      --panel-hover: #1a2445;
      --border: rgba(110, 140, 255, .16);
      --border-strong: rgba(110, 180, 255, .35);
      --primary: #5b7cff;
      --accent: #00e0ff;
      --gold: #ffb84d;
      --danger: #ff5d7a;
      --text: #eaf0ff;
      --text-weak: #9aa7d4;
      --muted: #6b77a5;
      --radius-sm: 8px;
      --radius: 14px;
      --radius-lg: 22px;
      --shadow: 0 14px 40px rgba(0, 0, 0, .35);
      --glow: 0 0 18px rgba(0, 224, 255, .25);
      --transition: .25s ease;
      --font: system-ui, -apple-system, "Segoe UI", "PingFang SC", "Microsoft YaHei", sans-serif;
      --header-h: 72px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      background: var(--bg);
      color: var(--text);
      font-family: var(--font);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      color: var(--accent);
      text-decoration: none;
      transition: color var(--transition), border-color var(--transition), background var(--transition), box-shadow var(--transition), transform var(--transition);
    }

    a:hover {
      color: #ffffff;
    }

    h1, h2, h3, h4, h5, h6 {
      color: var(--text);
      line-height: 1.3;
      margin-top: 0;
      margin-bottom: .5em;
    }

    p {
      margin-top: 0;
      margin-bottom: 1rem;
    }

    ul {
      margin: 0;
      padding: 0;
    }

    button, input, select, textarea {
      font-family: inherit;
      font-size: inherit;
    }

    .container {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 24px;
    }

    .section {
      padding: 96px 0;
      position: relative;
    }

    .section-head {
      max-width: 760px;
      margin: 0 auto 56px;
      text-align: center;
    }

    .section-head h2 {
      font-size: clamp(1.8rem, 3vw, 2.5rem);
      font-weight: 800;
      letter-spacing: .5px;
      margin-bottom: 14px;
    }

    .section-head p {
      color: var(--text-weak);
      font-size: 1rem;
      margin-bottom: 0;
    }

    .section-tag {
      display: inline-block;
      padding: 5px 16px;
      border: 1px solid rgba(0, 224, 255, .4);
      border-radius: 999px;
      color: var(--accent);
      font-size: .8rem;
      font-weight: 600;
      letter-spacing: 2px;
      margin-bottom: 18px;
      background: rgba(0, 224, 255, .06);
      box-shadow: var(--glow);
    }

    /* Header */
    .site-header {
      position: fixed;
      top: 0;
      left: 0;
      right: 0;
      z-index: 1000;
      height: var(--header-h);
      background: rgba(8, 12, 26, .86);
      backdrop-filter: blur(14px);
      -webkit-backdrop-filter: blur(14px);
      border-bottom: 1px solid var(--border);
    }

    .header-inner {
      height: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 800;
      color: #fff;
      letter-spacing: .5px;
      white-space: nowrap;
    }

    .logo span {
      color: var(--accent);
      text-shadow: 0 0 14px rgba(0, 224, 255, .5);
    }

    .logo-icon {
      width: 34px;
      height: 34px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      border-radius: 10px;
      background: linear-gradient(135deg, rgba(91, 124, 255, .25), rgba(0, 224, 255, .2));
      color: var(--accent);
      border: 1px solid rgba(0, 224, 255, .35);
      font-size: .9rem;
      box-shadow: var(--glow);
    }

    .nav {
      display: flex;
      align-items: center;
      gap: 6px;
    }

    .nav a {
      position: relative;
      padding: 10px 16px;
      border-radius: 999px;
      color: var(--text-weak);
      font-size: .92rem;
      font-weight: 500;
      line-height: 1;
    }

    .nav a::after {
      content: "";
      position: absolute;
      left: 50%;
      bottom: 4px;
      width: 0;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
      transform: translateX(-50%);
      transition: width var(--transition);
      box-shadow: 0 0 8px var(--accent);
    }

    .nav a:hover {
      color: #fff;
      background: rgba(255, 255, 255, .04);
    }

    .nav a:hover::after,
    .nav a.active::after {
      width: 24px;
    }

    .nav a.active {
      color: #fff;
      background: rgba(0, 224, 255, .08);
      box-shadow: inset 0 0 0 1px rgba(0, 224, 255, .18);
    }

    .nav .nav-cta {
      margin-left: 10px;
      padding: 10px 20px;
      border: 1px solid transparent;
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      font-weight: 700;
      box-shadow: 0 6px 22px rgba(0, 224, 255, .25);
      white-space: nowrap;
    }

    .nav .nav-cta::after {
      display: none;
    }

    .nav .nav-cta:hover {
      transform: translateY(-2px);
      box-shadow: 0 10px 28px rgba(0, 224, 255, .38);
    }

    .nav-toggle {
      display: none;
      width: 42px;
      height: 42px;
      border-radius: 12px;
      border: 1px solid var(--border);
      background: var(--panel);
      color: var(--accent);
      align-items: center;
      justify-content: center;
      cursor: pointer;
      font-size: 1.1rem;
      transition: background var(--transition), border-color var(--transition);
    }

    .nav-toggle:hover {
      background: var(--panel-hover);
      border-color: var(--border-strong);
    }

    /* Page Hero */
    .page-hero {
      min-height: 480px;
      display: flex;
      align-items: center;
      margin-top: var(--header-h);
      position: relative;
      background-size: cover;
      background-position: center;
      overflow: hidden;
    }

    .page-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(to right, rgba(8, 12, 26, .94), rgba(8, 12, 26, .72), rgba(8, 12, 26, .38));
      z-index: 1;
    }

    .page-hero .container {
      position: relative;
      z-index: 2;
      padding-top: 60px;
      padding-bottom: 60px;
    }

    .breadcrumbs {
      display: flex;
      flex-wrap: wrap;
      align-items: center;
      gap: 8px;
      color: var(--muted);
      font-size: .85rem;
      margin-bottom: 28px;
    }

    .breadcrumbs a {
      color: var(--text-weak);
    }

    .breadcrumbs a:hover {
      color: var(--accent);
    }

    .breadcrumbs span {
      color: var(--muted);
    }

    .page-hero h1 {
      font-size: clamp(2.8rem, 6vw, 4.2rem);
      font-weight: 900;
      margin-bottom: 20px;
      letter-spacing: 2px;
      text-shadow: 0 0 30px rgba(0, 224, 255, .35);
    }

    .page-hero p {
      max-width: 640px;
      color: var(--text-weak);
      font-size: 1.1rem;
      margin-bottom: 32px;
    }

    .hero-actions {
      display: flex;
      flex-wrap: wrap;
      gap: 16px;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      padding: 12px 26px;
      border-radius: 999px;
      font-size: .95rem;
      font-weight: 700;
      line-height: 1.4;
      border: 1px solid transparent;
      cursor: pointer;
      transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition), color var(--transition);
    }

    .btn i {
      font-size: .85rem;
    }

    .btn-primary {
      background: linear-gradient(135deg, var(--primary), var(--accent));
      color: #fff;
      box-shadow: 0 6px 22px rgba(0, 224, 255, .25);
    }

    .btn-primary:hover {
      color: #fff;
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(0, 224, 255, .38);
    }

    .btn-ghost {
      background: rgba(255, 255, 255, .04);
      border-color: var(--border-strong);
      color: var(--text);
    }

    .btn-ghost:hover {
      color: #fff;
      background: rgba(0, 224, 255, .08);
      border-color: var(--accent);
      transform: translateY(-2px);
    }

    .btn-light {
      background: #fff;
      color: #0e1428;
      box-shadow: 0 8px 24px rgba(0, 0, 0, .3);
    }

    .btn-light:hover {
      color: #0e1428;
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(0, 0, 0, .4);
    }

    /* Intro Section */
    .intro-section {
      background: var(--bg-soft);
      border-bottom: 1px solid var(--border);
    }

    .intro-copy h2 {
      font-size: clamp(1.7rem, 2.8vw, 2.3rem);
      margin-bottom: 18px;
    }

    .intro-copy p {
      color: var(--text-weak);
      font-size: .98rem;
      max-width: 560px;
    }

    .stats-grid {
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 16px;
    }

    .stat-card {
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 28px 18px;
      text-align: center;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .stat-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-strong);
      box-shadow: var(--shadow);
    }

    .stat-num {
      font-size: 2rem;
      font-weight: 900;
      color: var(--accent);
      text-shadow: 0 0 20px rgba(0, 224, 255, .3);
      line-height: 1.2;
    }

    .stat-label {
      color: var(--text-weak);
      font-size: .85rem;
      margin-top: 6px;
    }

    /* Guide Cards */
    .guide-section {
      background: var(--bg);
    }

    .card {
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      overflow: hidden;
      height: 100%;
      display: flex;
      flex-direction: column;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .card:hover {
      transform: translateY(-6px);
      border-color: var(--border-strong);
      box-shadow: var(--shadow);
    }

    .card-thumb {
      position: relative;
      overflow: hidden;
      height: 190px;
      background: #0d1225;
    }

    .card-thumb img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      transition: transform .45s ease;
    }

    .card:hover .card-thumb img {
      transform: scale(1.05);
    }

    .card-thumb::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(to top, rgba(8, 12, 26, .35), transparent 60%);
      pointer-events: none;
    }

    .card-body {
      padding: 26px 24px 28px;
      display: flex;
      flex-direction: column;
      flex: 1;
    }

    .badge {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding: 4px 12px;
      border-radius: 999px;
      background: rgba(91, 124, 255, .14);
      border: 1px solid rgba(91, 124, 255, .3);
      color: #a8bcff;
      font-size: .78rem;
      font-weight: 600;
      letter-spacing: 1px;
      margin-bottom: 14px;
      align-self: flex-start;
    }

    .card-body h3 {
      font-size: 1.15rem;
      margin-bottom: 10px;
    }

    .card-body p {
      color: var(--text-weak);
      font-size: .92rem;
      flex: 1;
    }

    .card-link {
      margin-top: 18px;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      color: var(--accent);
      font-weight: 700;
      font-size: .9rem;
    }

    .card-link i {
      transition: transform var(--transition);
    }

    .card-link:hover {
      color: #fff;
    }

    .card-link:hover i {
      transform: translateX(4px);
    }

    /* Steps */
    .steps-section {
      background: var(--bg-soft);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .step-card {
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      padding: 30px 24px;
      height: 100%;
      position: relative;
      transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
    }

    .step-card:hover {
      transform: translateY(-4px);
      border-color: var(--border-strong);
      box-shadow: var(--shadow);
    }

    .step-num {
      font-size: 2.2rem;
      font-weight: 900;
      color: transparent;
      -webkit-text-stroke: 1px var(--accent);
      opacity: .65;
      line-height: 1.2;
    }

    .step-card h3 {
      font-size: 1.05rem;
      margin: 18px 0 10px;
    }

    .step-card p {
      color: var(--text-weak);
      font-size: .9rem;
      margin-bottom: 0;
    }

    /* Tips */
    .tips-panel {
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      padding: 40px 34px;
      height: 100%;
    }

    .tips-panel.accent {
      border-color: rgba(255, 184, 77, .32);
      background: linear-gradient(160deg, rgba(255, 184, 77, .05), rgba(255, 93, 122, .04));
    }

    .tips-panel h3 {
      font-size: 1.2rem;
      margin-bottom: 22px;
      display: flex;
      align-items: center;
      gap: 10px;
    }

    .tips-panel h3 i {
      color: var(--accent);
    }

    .tips-panel.accent h3 i {
      color: var(--gold);
    }

    .tips-panel ul {
      list-style: none;
    }

    .tips-panel li {
      position: relative;
      padding-left: 26px;
      margin-bottom: 14px;
      color: var(--text-weak);
      font-size: .93rem;
    }

    .tips-panel li::before {
      content: "✓";
      position: absolute;
      left: 0;
      top: 0;
      color: var(--accent);
      font-weight: 700;
    }

    .tips-panel.accent li::before {
      content: "!";
      color: var(--gold);
    }

    /* FAQ */
    .faq-section {
      background: var(--bg);
    }

    .faq-list {
      max-width: 840px;
      margin: 0 auto;
    }

    .faq-item {
      background: var(--panel);
      border: 1px solid var(--border);
      border-radius: var(--radius);
      margin-bottom: 14px;
      overflow: hidden;
      transition: border-color var(--transition), box-shadow var(--transition);
    }

    .faq-item:hover {
      border-color: var(--border-strong);
    }

    .faq-item summary {
      list-style: none;
      cursor: pointer;
      padding: 22px 26px;
      font-size: 1rem;
      font-weight: 700;
      color: var(--text);
      display: flex;
      justify-content: space-between;
      align-items: center;
      gap: 16px;
    }

    .faq-item summary::-webkit-details-marker {
      display: none;
    }

    .faq-item summary::after {
      content: "\2b";
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      font-size: 1.1rem;
      color: var(--accent);
      transition: transform .3s ease;
      flex-shrink: 0;
    }

    .faq-item[open] summary::after {
      transform: rotate(45deg);
    }

    .faq-answer {
      padding: 0 26px 24px;
      color: var(--text-weak);
      font-size: .94rem;
    }

    .faq-answer p:last-child {
      margin-bottom: 0;
    }

    /* CTA */
    .cta-section {
      padding-top: 0;
    }

    .cta-panel {
      position: relative;
      border-radius: var(--radius-lg);
      overflow: hidden;
      text-align: center;
      padding: 80px 40px;
      background-image: url('/assets/images/backpic/back-3.png');
      background-size: cover;
      background-position: center;
      border: 1px solid var(--border);
    }

    .cta-panel::before {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(8, 12, 26, .92), rgba(14, 20, 40, .8));
    }

    .cta-panel > .cta-content {
      position: relative;
      z-index: 2;
      max-width: 640px;
      margin: 0 auto;
    }

    .cta-panel h2 {
      font-size: clamp(1.6rem, 2.6vw, 2.2rem);
      margin-bottom: 14px;
    }

    .cta-panel p {
      color: var(--text-weak);
      font-size: 1rem;
      margin-bottom: 28px;
    }

    /* Footer */
    .site-footer {
      background: var(--bg);
      border-top: 1px solid var(--border);
      padding: 64px 0 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 40px;
    }

    .footer-brand .logo {
      margin-bottom: 16px;
    }

    .footer-brand p {
      color: var(--text-weak);
      font-size: .92rem;
      max-width: 320px;
      margin-bottom: 0;
    }

    .footer-col h4 {
      font-size: 1rem;
      margin-bottom: 18px;
      color: var(--text);
    }

    .footer-col ul {
      list-style: none;
    }

    .footer-col ul li {
      margin-bottom: 10px;
    }

    .footer-col a {
      color: var(--text-weak);
      font-size: .9rem;
      display: inline-flex;
      align-items: center;
      gap: 6px;
    }

    .footer-col a:hover {
      color: var(--accent);
    }

    .footer-bottom {
      border-top: 1px solid var(--border);
      padding: 20px 0;
      display: flex;
      flex-wrap: wrap;
      justify-content: space-between;
      gap: 10px;
      color: var(--muted);
      font-size: .85rem;
    }

    .footer-bottom p {
      margin-bottom: 0;
    }

    /* Responsive */
    @media (max-width: 1024px) {
      .section {
        padding: 80px 0;
      }

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

    @media (max-width: 768px) {
      :root {
        --header-h: 64px;
      }

      .nav {
        position: fixed;
        top: var(--header-h);
        right: 0;
        width: min(78%, 320px);
        height: calc(100vh - var(--header-h));
        background: var(--bg-soft);
        border-left: 1px solid var(--border);
        border-bottom: 1px solid var(--border);
        flex-direction: column;
        align-items: stretch;
        padding: 26px 22px;
        transform: translateX(105%);
        transition: transform .32s ease;
        z-index: 999;
        box-shadow: -16px 0 40px rgba(0, 0, 0, .4);
      }

      .nav.open {
        transform: translateX(0);
      }

      .nav a {
        padding: 14px 16px;
        font-size: 1rem;
        border-bottom: 1px solid var(--border);
        border-radius: 0;
      }

      .nav a::after {
        left: 16px;
        bottom: 8px;
        transform: none;
      }

      .nav a:hover::after,
      .nav a.active::after {
        width: 24px;
      }

      .nav .nav-cta {
        margin: 16px 0 0;
        text-align: center;
        justify-content: center;
        border-bottom: none;
        border-radius: 999px;
      }

      .nav-toggle {
        display: inline-flex;
      }

      .page-hero {
        min-height: 430px;
      }

      .stats-grid {
        gap: 12px;
      }

      .stat-card {
        padding: 20px 12px;
      }

      .stat-num {
        font-size: 1.6rem;
      }

      .cta-panel {
        padding: 60px 24px;
      }
    }

    @media (max-width: 520px) {
      .container {
        padding: 0 18px;
      }

      .section {
        padding: 64px 0;
      }

      .logo {
        font-size: 1.1rem;
      }

      .page-hero h1 {
        font-size: 2.3rem;
      }

      .page-hero p {
        font-size: .95rem;
      }

      .hero-actions {
        flex-direction: column;
        align-items: stretch;
      }

      .hero-actions .btn {
        justify-content: center;
      }

      .stats-grid {
        grid-template-columns: 1fr;
      }

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

      .footer-bottom {
        flex-direction: column;
        text-align: center;
      }
    }

/* roulang page: article */
:root {
  --bg: #070b14;
  --bg-deep: #04070d;
  --bg-soft: #0c1220;
  --card: #111a2b;
  --card-2: #0e1626;
  --neon: #00e5ff;
  --neon-2: #0077ff;
  --neon-soft: rgba(0, 229, 255, .22);
  --accent: #ff2d78;
  --accent-soft: rgba(255, 45, 120, .18);
  --text: #eaf6ff;
  --text-weak: #8da2bb;
  --text-dim: #5b6e85;
  --border: rgba(0, 229, 255, .13);
  --border-2: rgba(255, 255, 255, .06);
  --radius: 18px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --shadow: 0 24px 60px rgba(0, 0, 0, .5);
  --shadow-neon: 0 0 40px rgba(0, 229, 255, .1);
  --font: 'Noto Sans SC', 'PingFang SC', 'Microsoft YaHei', sans-serif;
  --transition: .3s cubic-bezier(.4, 0, .2, 1);
}
* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  font-size: 16px;
  line-height: 1.8;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
ul { list-style: none; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }
::selection { background: var(--neon-soft); color: var(--text); }
button:focus, a:focus, input:focus { outline: 2px solid var(--neon); outline-offset: 2px; }

/* ========== Header / Nav ========== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(6, 10, 18, .88);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  height: 74px;
}
.logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: 1.3rem;
  font-weight: 900;
  letter-spacing: .5px;
  color: var(--text);
  white-space: nowrap;
}
.logo-icon {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--neon), var(--neon-2));
  border-radius: 10px;
  color: #04151f;
  font-size: .95rem;
  box-shadow: 0 0 22px rgba(0, 229, 255, .35);
}
.logo span { color: var(--neon); }
.nav {
  display: flex;
  align-items: center;
  gap: .35rem;
}
.nav a {
  padding: .5rem .85rem;
  border-radius: var(--radius-xs);
  font-size: .93rem;
  font-weight: 500;
  color: var(--text-weak);
  transition: var(--transition);
  position: relative;
}
.nav a:hover {
  color: var(--neon);
  background: rgba(0, 229, 255, .06);
}
.nav a.active {
  color: var(--neon);
  background: rgba(0, 229, 255, .08);
  box-shadow: inset 0 -2px 0 var(--neon);
  text-shadow: 0 0 14px rgba(0, 229, 255, .45);
}
.nav a.nav-cta {
  margin-left: .4rem;
  padding: .55rem 1.15rem;
  background: linear-gradient(135deg, var(--neon), var(--neon-2));
  color: #04151f;
  font-weight: 700;
  border-radius: 30px;
  box-shadow: 0 4px 20px rgba(0, 229, 255, .28);
}
.nav a.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(0, 229, 255, .45);
  color: #04151f;
}
.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  background: transparent;
  border: 1px solid var(--border);
  color: var(--neon);
  width: 44px;
  height: 44px;
  border-radius: 10px;
  font-size: 1.1rem;
  cursor: pointer;
  transition: var(--transition);
}
.nav-toggle:hover { background: rgba(0, 229, 255, .08); }

/* ========== Article Hero ========== */
.article-hero {
  position: relative;
  padding: 90px 0 90px;
  background:
    linear-gradient(135deg, rgba(4, 7, 14, .93), rgba(10, 18, 32, .9)),
    url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  border-bottom: 1px solid var(--border);
}
.article-hero::after {
  content: '';
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--neon), var(--accent), transparent);
}
.article-hero-inner { position: relative; z-index: 2; }
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .4rem;
  font-size: .85rem;
  color: var(--text-weak);
  margin-bottom: 1.4rem;
}
.breadcrumb a { color: var(--neon); }
.breadcrumb a:hover { text-shadow: 0 0 10px var(--neon); }
.breadcrumb i { color: var(--text-dim); font-size: .65rem; }
.badge {
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  padding: .3rem .85rem;
  border-radius: 30px;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .4px;
  border: 1px solid var(--border);
  background: rgba(0, 229, 255, .07);
  color: var(--neon);
  margin-bottom: 1.2rem;
}
.badge-accent {
  background: var(--accent-soft);
  border-color: rgba(255, 45, 120, .25);
  color: var(--accent);
}
.article-title {
  font-size: clamp(1.7rem, 4vw, 2.8rem);
  font-weight: 900;
  line-height: 1.35;
  letter-spacing: .5px;
  margin-bottom: 1.1rem;
}
.article-lead {
  font-size: 1.05rem;
  color: var(--text-weak);
  max-width: 820px;
  margin-bottom: 1.4rem;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 1.2rem;
  font-size: .86rem;
  color: var(--text-weak);
}
.article-meta i { color: var(--neon); margin-right: .35rem; }

/* ========== Article Section ========== */
.article-section { padding: 70px 0 40px; }
.article-section .cell { margin-bottom: 24px; }
@media (max-width: 900px) {
  .article-section .cell { width: 100%; max-width: 100%; flex: 0 0 100%; }
  .article-section .cell + .cell { margin-top: 0; }
}
.article-layout {
  background: var(--card);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: clamp(24px, 4vw, 48px);
  box-shadow: var(--shadow);
  position: relative;
  overflow: hidden;
}
.article-layout::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--neon), var(--accent));
}
.article-body {
  font-size: 1.02rem;
  line-height: 2;
  color: #c4d4e6;
  word-break: break-word;
}
.article-body h2 {
  font-size: 1.5rem;
  font-weight: 800;
  margin: 2.2rem 0 1rem;
  color: var(--text);
  padding-left: 1rem;
  border-left: 4px solid var(--neon);
}
.article-body h3 {
  font-size: 1.25rem;
  font-weight: 700;
  margin: 1.8rem 0 .8rem;
  color: var(--text);
}
.article-body p { margin-bottom: 1.3rem; }
.article-body ul,
.article-body ol { margin-bottom: 1.4rem; padding-left: 1.4rem; }
.article-body ul li { list-style: disc; margin-bottom: .65rem; }
.article-body ol li { list-style: decimal; margin-bottom: .65rem; }
.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: rgba(255, 45, 120, .06);
  padding: 1.1rem 1.4rem;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  margin: 1.6rem 0;
  color: var(--text-weak);
}
.article-body img {
  border-radius: var(--radius);
  margin: 1.6rem 0;
  box-shadow: var(--shadow);
}
.article-body a { color: var(--neon); border-bottom: 1px solid transparent; }
.article-body a:hover { border-bottom-color: var(--neon); }
.tags-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: .7rem;
  margin: 2.4rem 0 0;
  padding-top: 1.8rem;
  border-top: 1px solid var(--border-2);
}
.tags-row .tag-label,
.share-label {
  font-size: .88rem;
  color: var(--text-weak);
}
.tag {
  display: inline-block;
  padding: .35rem .85rem;
  background: var(--card-2);
  border: 1px solid var(--border-2);
  border-radius: 30px;
  font-size: .8rem;
  color: var(--text-weak);
  transition: var(--transition);
}
.tag:hover {
  color: var(--neon);
  border-color: var(--border);
  box-shadow: 0 0 14px rgba(0, 229, 255, .15);
}
.share-row {
  display: flex;
  align-items: center;
  gap: .8rem;
  margin-top: 1.4rem;
}
.share-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: var(--card-2);
  border: 1px solid var(--border-2);
  color: var(--text-weak);
  transition: var(--transition);
}
.share-btn:hover {
  color: var(--neon);
  border-color: var(--border);
  transform: translateY(-3px);
  box-shadow: 0 6px 18px rgba(0, 229, 255, .15);
}

/* ========== Sidebar ========== */
.side-card {
  background: var(--card);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: 26px;
  margin-bottom: 24px;
  transition: var(--transition);
}
.side-card:hover {
  transform: translateY(-3px);
  border-color: var(--border);
  box-shadow: var(--shadow);
}
.side-card h3 {
  font-size: 1.05rem;
  font-weight: 800;
  margin-bottom: 18px;
  display: flex;
  align-items: center;
  gap: .6rem;
  color: var(--text);
}
.side-card h3 i { color: var(--neon); }
.side-card h3::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border), transparent);
}
.info-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: .7rem 0;
  border-bottom: 1px dashed var(--border-2);
  font-size: .88rem;
  color: var(--text-weak);
}
.info-list li:last-child { border-bottom: none; }
.info-list li b { color: var(--text); font-weight: 600; }
.cat-list li { margin-bottom: .6rem; }
.cat-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: .75rem 1rem;
  background: var(--card-2);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  font-size: .9rem;
  color: var(--text-weak);
  transition: var(--transition);
}
.cat-list a:hover {
  color: var(--neon);
  border-color: var(--border);
  transform: translateX(6px);
}
.cat-list a i { font-size: .75rem; }

/* ========== Info Section ========== */
.info-section {
  padding: 70px 0;
  background: var(--bg-soft);
  border-top: 1px solid var(--border-2);
}
.section-head {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 44px;
}
.section-head .kicker {
  font-size: .78rem;
  letter-spacing: 4px;
  color: var(--neon);
  text-transform: uppercase;
  font-weight: 600;
}
.section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  font-weight: 900;
  margin: .6rem 0 .7rem;
}
.section-head p { color: var(--text-weak); font-size: .95rem; }
.info-rows { display: flex; flex-direction: column; gap: 28px; }
.info-row {
  display: flex;
  align-items: center;
  gap: 40px;
  background: var(--card);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  padding: 36px;
  transition: var(--transition);
}
.info-row:hover {
  transform: translateY(-4px);
  border-color: var(--border);
  box-shadow: var(--shadow);
}
.info-text { flex: 1; min-width: 0; }
.info-text h3 {
  font-size: 1.3rem;
  font-weight: 800;
  margin: .9rem 0 .7rem;
  color: var(--text);
}
.info-text p {
  font-size: .92rem;
  color: var(--text-weak);
  line-height: 1.85;
  margin-bottom: 1.2rem;
}
.info-img { flex: 0 0 44%; }
.info-img img {
  width: 100%;
  height: 250px;
  object-fit: cover;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow);
  transition: .5s;
}
.info-row:hover .info-img img { transform: scale(1.02); }
.info-row.reverse { flex-direction: row-reverse; }

/* ========== FAQ ========== */
.faq-section { padding: 70px 0; }
.faq-grid { max-width: 840px; margin: 0 auto; }
.faq-item {
  background: var(--card);
  border: 1px solid var(--border-2);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: var(--border); }
.faq-q {
  padding: 1.2rem 1.5rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: .98rem;
  gap: 1rem;
  color: var(--text);
}
.faq-q i { color: var(--neon); transition: var(--transition); }
.faq-item.open .faq-q i { transform: rotate(45deg); }
.faq-a { max-height: 0; overflow: hidden; transition: max-height .4s ease; }
.faq-a-inner {
  padding: 0 1.5rem 1.3rem;
  color: var(--text-weak);
  font-size: .9rem;
  line-height: 1.85;
}

/* ========== CTA ========== */
.cta-section { padding: 0 0 80px; }
.cta-box {
  background:
    linear-gradient(135deg, rgba(0, 229, 255, .12), rgba(255, 45, 120, .1)),
    url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 50px 40px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -40%;
  right: -20%;
  width: 280px;
  height: 280px;
  background: radial-gradient(circle, rgba(0, 229, 255, .18), transparent 70%);
}
.cta-box h2 {
  font-size: 1.6rem;
  font-weight: 900;
  margin-bottom: .8rem;
  color: var(--text);
  position: relative;
  z-index: 1;
}
.cta-box p {
  color: var(--text-weak);
  max-width: 520px;
  margin: 0 auto 1.6rem;
  position: relative;
  z-index: 1;
}
.cta-buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  position: relative;
  z-index: 1;
}
.btn {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  padding: .85rem 1.6rem;
  border-radius: 30px;
  font-size: .95rem;
  font-weight: 700;
  text-decoration: none;
  transition: var(--transition);
  cursor: pointer;
}
.btn-neon {
  background: linear-gradient(135deg, var(--neon), var(--neon-2));
  color: #04151f;
  box-shadow: 0 8px 30px rgba(0, 229, 255, .3);
}
.btn-neon:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 40px rgba(0, 229, 255, .5);
  color: #04151f;
}
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--text);
}
.btn-ghost:hover {
  border-color: var(--neon);
  color: var(--neon);
  box-shadow: 0 0 20px rgba(0, 229, 255, .15);
}

/* ========== Related ========== */
.related-section { padding: 0 0 70px; }
.related-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.related-card {
  background: var(--card);
  border: 1px solid var(--border-2);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.related-card:hover {
  transform: translateY(-6px);
  border-color: var(--border);
  box-shadow: var(--shadow);
}
.related-thumb {
  height: 130px;
  overflow: hidden;
  position: relative;
}
.related-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: .5s;
}
.related-card:hover .related-thumb img { transform: scale(1.06); }
.related-body {
  padding: 18px;
  display: flex;
  flex-direction: column;
  gap: .4rem;
  flex: 1;
}
.related-card h4 {
  font-size: .95rem;
  font-weight: 600;
  line-height: 1.55;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.related-meta { font-size: .78rem; color: var(--text-dim); }
.empty-tip {
  text-align: center;
  padding: 2rem;
  color: var(--text-weak);
  background: var(--card);
  border-radius: var(--radius);
}

/* ========== 404 ========== */
.notfound {
  min-height: 60vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 90px 24px;
}
.nf-icon {
  font-size: 3.4rem;
  color: var(--accent);
  margin-bottom: 1.2rem;
  opacity: .8;
}
.notfound h1 {
  font-size: 1.8rem;
  font-weight: 900;
  margin-bottom: .8rem;
}
.notfound p {
  color: var(--text-weak);
  margin-bottom: 1.6rem;
}

/* ========== Footer ========== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border-2);
  padding: 60px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr .8fr .8fr 1fr;
  gap: 36px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--border-2);
}
.footer-brand .logo { margin-bottom: 1rem; }
.footer-brand p {
  font-size: .85rem;
  color: var(--text-dim);
  line-height: 1.8;
  margin-top: 1rem;
}
.footer-col h4 {
  font-size: .9rem;
  font-weight: 800;
  letter-spacing: 1px;
  color: var(--text);
  margin-bottom: 1.1rem;
  position: relative;
  padding-bottom: .6rem;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--neon);
}
.footer-col ul li { margin-bottom: .65rem; }
.footer-col ul a {
  font-size: .88rem;
  color: var(--text-dim);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: .4rem;
}
.footer-col ul a:hover { color: var(--neon); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: .8rem;
  padding: 1.4rem 0;
  font-size: .8rem;
  color: var(--text-dim);
}

/* ========== Responsive ========== */
@media (max-width: 1024px) {
  .related-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav { gap: .2rem; }
  .nav a { padding: .5rem .6rem; font-size: .88rem; }
}
@media (max-width: 900px) {
  .nav-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .nav {
    position: absolute;
    top: 74px;
    left: 0;
    right: 0;
    background: rgba(6, 10, 18, .98);
    flex-direction: column;
    align-items: stretch;
    padding: 1rem 1.2rem;
    gap: .3rem;
    border-bottom: 1px solid var(--border);
    transform: translateY(-16px);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    box-shadow: 0 30px 50px rgba(0, 0, 0, .45);
  }
  .nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav a {
    padding: .9rem 1rem;
    border-radius: var(--radius-sm);
    font-size: 1rem;
    display: flex;
    align-items: center;
    border-left: 2px solid transparent;
  }
  .nav a.active {
    border-left-color: var(--neon);
    background: rgba(0, 229, 255, .06);
    box-shadow: none;
    text-shadow: none;
  }
  .nav a.nav-cta {
    margin: 1rem 0 0;
    justify-content: center;
    background: linear-gradient(135deg, var(--neon), var(--neon-2));
    color: #04151f;
    border: none;
  }
  .info-row,
  .info-row.reverse {
    flex-direction: column;
    padding: 24px;
  }
  .info-img {
    flex: 1 1 auto;
    width: 100%;
    max-width: 100%;
  }
  .info-img img { height: 200px; }
  .article-hero { padding: 60px 0; }
}
@media (max-width: 640px) {
  .related-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .cta-box { padding: 36px 22px; }
  .article-layout { padding: 22px; }
  .article-meta { gap: .8rem; font-size: .8rem; }
  .info-row,
  .info-row.reverse { gap: 20px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .logo { font-size: 1.1rem; }
  .logo-icon { width: 32px; height: 32px; font-size: .8rem; }
  .article-title { font-size: 1.5rem; }
  .cta-buttons .btn { width: 100%; justify-content: center; }
}

/* roulang page: category2 */
:root{
  --primary:#00d4ff;
  --primary-rgb:0,212,255;
  --secondary:#9b5cff;
  --secondary-rgb:155,92,255;
  --accent:#ff6ade;
  --bg-deep:#05070d;
  --bg-body:#0a0e1a;
  --bg-panel:#0f1524;
  --bg-card:#151c2e;
  --bg-card-hover:#1a2338;
  --text-main:#e6edf5;
  --text-strong:#ffffff;
  --text-muted:#8b9bb4;
  --border:rgba(255,255,255,.08);
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:10px;
  --shadow-panel:0 24px 70px rgba(0,0,0,.45);
  --shadow-card:0 12px 36px rgba(0,0,0,.3);
  --glow-primary:0 0 32px rgba(var(--primary-rgb),.28);
  --glow-secondary:0 0 32px rgba(var(--secondary-rgb),.25);
  --header-h:78px;
  --section-pad:96px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
  background:var(--bg-body);
  color:var(--text-main);
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none;transition:color .2s ease}
a:hover{color:#66e5ff}
img{max-width:100%;display:block}
ul,ol{list-style:none}
button{font-family:inherit;cursor:pointer}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--section-pad) 0}

/* ===== Header ===== */
.site-header{
  position:sticky;top:0;z-index:100;
  background:rgba(7,10,18,.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border-bottom:1px solid var(--border);
  box-shadow:0 4px 30px rgba(0,0,0,.3);
}
.site-header::after{
  content:"";display:block;height:2px;
  background:linear-gradient(90deg,var(--primary),var(--secondary),var(--accent));
  opacity:.7;
}
.header-inner{
  display:flex;align-items:center;justify-content:space-between;
  min-height:var(--header-h);gap:24px;
}
.logo{
  font-size:1.45rem;font-weight:800;color:var(--text-strong);
  display:flex;align-items:center;gap:10px;white-space:nowrap;
}
.logo-icon{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  display:flex;align-items:center;justify-content:center;
  color:#fff;font-size:1rem;
  box-shadow:var(--glow-primary);
}
.logo span{color:var(--primary);font-weight:700}
.nav{
  display:flex;align-items:center;gap:8px;flex-wrap:wrap;
}
.nav a{
  position:relative;
  padding:10px 18px;
  color:var(--text-muted);
  font-size:.92rem;font-weight:600;
  border-radius:999px;
  transition:all .25s ease;
}
.nav a:hover{
  color:var(--text-strong);
  background:rgba(255,255,255,.05);
}
.nav a.active{
  color:var(--text-strong);
  background:linear-gradient(135deg,rgba(var(--primary-rgb),.18),rgba(var(--secondary-rgb),.18));
  box-shadow:inset 0 0 0 1px rgba(var(--primary-rgb),.25),var(--glow-primary);
}
.nav a.active::after{
  content:"";position:absolute;bottom:-2px;left:50%;transform:translateX(-50%);
  width:22px;height:3px;border-radius:4px;
  background:var(--primary);
  box-shadow:0 0 12px rgba(var(--primary-rgb),.7);
}
.nav-cta{
  background:linear-gradient(135deg,var(--primary),#22d3ee);
  color:#04121a !important;
  padding:10px 22px !important;
  border-radius:999px;
  font-weight:700;
  box-shadow:0 6px 24px rgba(var(--primary-rgb),.3);
  display:inline-flex;align-items:center;gap:8px;
}
.nav-cta:hover{
  transform:translateY(-2px);
  box-shadow:0 10px 32px rgba(var(--primary-rgb),.4);
  color:#04121a !important;
}
.nav-toggle{
  display:none;width:42px;height:42px;border-radius:10px;
  background:rgba(255,255,255,.06);border:1px solid var(--border);
  color:var(--text-main);font-size:1.1rem;
  align-items:center;justify-content:center;
  transition:all .2s;
}
.nav-toggle:hover{background:rgba(255,255,255,.1);border-color:var(--primary)}
.mobile-nav{
  display:none;flex-direction:column;gap:4px;
  padding:16px 8px 20px;
  border-top:1px solid var(--border);
}
.mobile-nav a{
  display:flex;align-items:center;
  padding:12px 16px;border-radius:12px;
  color:var(--text-muted);font-weight:600;font-size:.95rem;
  transition:all .2s;
}
.mobile-nav a:hover{background:rgba(255,255,255,.05);color:var(--text-strong)}
.mobile-nav a.active{
  background:linear-gradient(135deg,rgba(var(--primary-rgb),.15),rgba(var(--secondary-rgb),.15));
  color:var(--text-strong);
}
.mobile-nav .nav-cta{
  background:linear-gradient(135deg,var(--primary),#22d3ee);
  color:#04121a !important;
  justify-content:center;margin-top:8px;
}
.mobile-nav.open{display:flex}

/* ===== Hero / Banner ===== */
.cat-hero{
  position:relative;overflow:hidden;
  padding:130px 0 110px;
  background-size:cover;background-position:center;
}
.cat-hero-bg{
  position:absolute;inset:0;
  background-size:cover;background-position:center;
  z-index:0;
}
.cat-hero-overlay{
  position:absolute;inset:0;z-index:1;
  background:linear-gradient(100deg,rgba(5,7,13,.94) 20%,rgba(10,14,26,.75) 55%,rgba(10,14,26,.35));
}
.cat-hero-inner{position:relative;z-index:2}
.hero-eyebrow{
  display:inline-flex;align-items:center;gap:8px;
  padding:8px 18px;border-radius:999px;
  background:rgba(var(--primary-rgb),.1);
  border:1px solid rgba(var(--primary-rgb),.3);
  color:var(--primary);
  font-size:.8rem;font-weight:700;letter-spacing:2px;
  text-transform:uppercase;
  margin-bottom:22px;
}
.cat-hero h1{
  font-size:clamp(2.8rem,7vw,4.8rem);
  font-weight:900;line-height:1.1;
  margin-bottom:24px;color:var(--text-strong);
  background:linear-gradient(120deg,var(--primary),var(--secondary),var(--accent));
  -webkit-background-clip:text;
  -webkit-text-fill-color:transparent;
  background-clip:text;
}
.hero-lead{
  font-size:1.15rem;line-height:1.8;
  color:rgba(255,255,255,.78);
  max-width:580px;margin-bottom:38px;
}
.hero-stats{
  display:flex;flex-wrap:wrap;gap:36px;
  margin-bottom:44px;
}
.hero-stat strong{
  display:block;
  font-size:1.9rem;font-weight:800;color:var(--text-strong);
  line-height:1.2;
}
.hero-stat strong i{color:var(--primary);font-style:normal}
.hero-stat span{font-size:.85rem;color:var(--text-muted)}
.hero-actions{display:flex;flex-wrap:wrap;gap:16px}

/* ===== Buttons ===== */
.btn{
  display:inline-flex;align-items:center;gap:10px;
  padding:14px 30px;border-radius:999px;
  font-size:.95rem;font-weight:700;line-height:1;
  border:1px solid transparent;
  transition:all .25s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),#22d3ee);
  color:#04121a;
  box-shadow:0 8px 28px rgba(var(--primary-rgb),.3);
}
.btn-primary:hover{
  transform:translateY(-2px);
  box-shadow:0 14px 38px rgba(var(--primary-rgb),.4);
  color:#04121a;
}
.btn-primary:focus-visible{
  outline:3px solid rgba(var(--primary-rgb),.4);
  outline-offset:3px;
}
.btn-ghost{
  background:rgba(255,255,255,.04);
  border-color:rgba(255,255,255,.2);
  color:var(--text-main);
}
.btn-ghost:hover{
  border-color:var(--primary);color:var(--primary);
  background:rgba(var(--primary-rgb),.06);
}
.btn-lg{padding:16px 36px;font-size:1rem}

/* ===== Section Head ===== */
.section-head{
  text-align:center;
  max-width:680px;margin:0 auto 60px;
}
.section-head h2{
  font-size:clamp(1.8rem,4vw,2.5rem);
  font-weight:800;color:var(--text-strong);
  line-height:1.3;margin-bottom:16px;
}
.section-head p{color:var(--text-muted);font-size:1rem;line-height:1.8}
.section-tag{
  display:inline-block;
  padding:6px 18px;border-radius:999px;
  background:linear-gradient(135deg,rgba(var(--primary-rgb),.12),rgba(var(--secondary-rgb),.12));
  border:1px solid rgba(var(--primary-rgb),.25);
  color:var(--primary);
  font-size:.78rem;font-weight:700;letter-spacing:2px;
  margin-bottom:18px;
}
.section-head-left{text-align:left;margin-left:0;margin-right:0}

/* ===== Intro Feature Cards ===== */
.feature-card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:40px 32px;
  text-align:center;
  height:100%;
  transition:all .3s ease;
}
.feature-card:hover{
  transform:translateY(-6px);
  background:var(--bg-card-hover);
  border-color:rgba(var(--primary-rgb),.3);
  box-shadow:var(--shadow-card),var(--glow-primary);
}
.feature-icon{
  width:68px;height:68px;margin:0 auto 24px;
  border-radius:18px;
  background:linear-gradient(135deg,rgba(var(--primary-rgb),.16),rgba(var(--secondary-rgb),.16));
  border:1px solid rgba(var(--primary-rgb),.25);
  display:flex;align-items:center;justify-content:center;
  font-size:1.6rem;color:var(--primary);
  transition:all .3s;
}
.feature-card:hover .feature-icon{
  box-shadow:var(--glow-primary);
}
.feature-card h3{
  font-size:1.15rem;font-weight:700;color:var(--text-strong);
  margin-bottom:14px;
}
.feature-card p{
  font-size:.92rem;color:var(--text-muted);line-height:1.8;
}

/* ===== News Cards ===== */
.latest-news{background:var(--bg-panel)}
.news-card{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  overflow:hidden;
  height:100%;
  display:flex;flex-direction:column;
  transition:all .3s ease;
}
.news-card:hover{
  transform:translateY(-8px);
  box-shadow:var(--shadow-card);
  border-color:rgba(var(--primary-rgb),.3);
}
.news-card-media{
  position:relative;overflow:hidden;
  aspect-ratio:16/10;
}
.news-card-media img{
  width:100%;height:100%;object-fit:cover;
  transition:transform .5s ease;
}
.news-card:hover .news-card-media img{transform:scale(1.05)}
.news-card-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(10,14,26,.55),transparent 55%);
}
.badge{
  position:absolute;top:14px;left:14px;z-index:2;
  padding:6px 14px;border-radius:999px;
  font-size:.75rem;font-weight:700;
  background:linear-gradient(135deg,var(--primary),var(--secondary));
  color:#fff;box-shadow:0 4px 16px rgba(0,0,0,.25);
  float:none;
}
.news-card-body{
  padding:24px 26px 26px;
  display:flex;flex-direction:column;flex:1;
}
.news-card-body h3{
  font-size:1.05rem;font-weight:700;line-height:1.55;
  margin-bottom:12px;
}
.news-card-body h3 a{
  color:var(--text-strong);
  transition:color .2s;
}
.news-card-body h3 a:hover{color:var(--primary)}
.news-card-body p{
  font-size:.88rem;color:var(--text-muted);
  line-height:1.75;margin-bottom:20px;flex:1;
}
.news-meta{
  display:flex;align-items:center;gap:18px;
  font-size:.8rem;color:var(--text-muted);
  border-top:1px solid var(--border);
  padding-top:16px;
}

/* ===== Hot Topics ===== */
.hot-topics{
  position:relative;
  background:linear-gradient(160deg,var(--bg-deep),var(--bg-body));
}
.panel-block{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-lg);
  padding:44px 40px;
  height:100%;
  transition:border-color .3s;
}
.panel-block:hover{border-color:rgba(var(--primary-rgb),.25)}
.panel-block h2{
  font-size:1.7rem;font-weight:800;color:var(--text-strong);
  margin-bottom:14px;
}
.panel-block p{color:var(--text-muted);font-size:.95rem;line-height:1.8}
.topic-cloud{
  display:flex;flex-wrap:wrap;gap:12px;margin-top:28px;
}
.topic-chip{
  display:inline-flex;align-items:center;gap:6px;
  padding:10px 20px;border-radius:999px;
  background:rgba(255,255,255,.04);
  border:1px solid var(--border);
  color:var(--text-main);
  font-size:.88rem;font-weight:600;
  transition:all .25s ease;
}
.topic-chip span{color:var(--primary);font-weight:800}
.topic-chip:hover{
  background:linear-gradient(135deg,rgba(var(--primary-rgb),.12),rgba(var(--secondary-rgb),.12));
  border-color:rgba(var(--primary-rgb),.4);
  color:var(--text-strong);
  transform:translateY(-2px);
  box-shadow:var(--glow-primary);
}
.rank-list{
  margin-top:24px;display:flex;flex-direction:column;gap:4px;
}
.rank-list li{
  display:flex;align-items:center;gap:18px;
  padding:16px 8px;border-radius:12px;
  transition:background .2s;
}
.rank-list li:hover{background:rgba(255,255,255,.03)}
.rank-num{
  width:40px;height:40px;flex-shrink:0;
  display:flex;align-items:center;justify-content:center;
  border-radius:10px;
  background:linear-gradient(135deg,rgba(var(--primary-rgb),.15),rgba(var(--secondary-rgb),.15));
  border:1px solid rgba(var(--primary-rgb),.2);
  color:var(--primary);
  font-weight:800;font-size:1rem;
}
.rank-list li a{
  color:var(--text-main);font-size:.95rem;font-weight:600;
  display:block;line-height:1.45;transition:color .2s;
}
.rank-list li a:hover{color:var(--primary)}
.rank-list li small{color:var(--text-muted);font-size:.78rem}

/* ===== Feature Story ===== */
.feature-story{background:var(--bg-panel)}
.feature-grid{
  display:grid;grid-template-columns:1fr 1fr;
  gap:60px;align-items:center;
}
.feature-media{
  position:relative;border-radius:var(--radius-lg);
  overflow:hidden;box-shadow:var(--shadow-panel);
}
.feature-media img{
  width:100%;height:100%;object-fit:cover;
  min-height:360px;
}
.feature-media::after{
  content:"";position:absolute;inset:0;
  background:linear-gradient(to top,rgba(5,7,13,.45),transparent 50%);
}
.feature-media-tag{
  position:absolute;bottom:20px;left:20px;z-index:2;
  padding:8px 18px;border-radius:999px;
  background:rgba(5,7,13,.6);
  border:1px solid rgba(var(--primary-rgb),.4);
  color:var(--primary);font-size:.82rem;font-weight:700;
  backdrop-filter:blur(6px);
}
.feature-content h2{
  font-size:clamp(1.6rem,3.4vw,2.2rem);
  font-weight:800;color:var(--text-strong);
  line-height:1.4;margin-bottom:20px;
}
.feature-content p{
  color:var(--text-muted);font-size:1rem;line-height:1.9;
  margin-bottom:26px;
}
.feature-list{display:flex;flex-direction:column;gap:14px;margin-bottom:32px}
.feature-list li{
  display:flex;align-items:center;gap:12px;
  color:var(--text-main);font-size:.95rem;
}
.feature-list li i{color:var(--primary);font-size:1.1rem}

/* ===== FAQ ===== */
.faq-section{background:var(--bg-body)}
.faq-list{
  display:flex;flex-direction:column;gap:16px;
}
.faq-item{
  background:var(--bg-card);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  overflow:hidden;
  transition:border-color .25s;
}
.faq-item:hover{border-color:rgba(var(--primary-rgb),.25)}
.faq-item.open{border-color:rgba(var(--primary-rgb),.4)}
.faq-question{
  width:100%;display:flex;align-items:center;justify-content:space-between;
  padding:22px 28px;
  background:transparent;border:none;
  color:var(--text-strong);font-size:1rem;font-weight:700;
  text-align:left;
  transition:background .2s;
}
.faq-question:hover{background:rgba(255,255,255,.03)}
.faq-question i{
  color:var(--primary);font-size:.85rem;
  transition:transform .3s ease;
}
.faq-item.open .faq-question i{transform:rotate(180deg)}
.faq-answer{
  max-height:0;overflow:hidden;
  transition:max-height .35s ease, padding .35s ease;
}
.faq-item.open .faq-answer{
  max-height:300px;
  padding:0 28px 24px;
}
.faq-answer p{
  color:var(--text-muted);font-size:.92rem;line-height:1.85;
  border-top:1px solid var(--border);
  padding-top:16px;
}

/* ===== CTA ===== */
.newsletter-cta{padding:0 0 100px;background:var(--bg-body)}
.cta-card{
  position:relative;overflow:hidden;
  background:linear-gradient(135deg,#0e1b35,#162044 55%,#251c3f);
  border:1px solid rgba(var(--primary-rgb),.2);
  border-radius:28px;
  padding:70px 60px;
  display:flex;align-items:center;gap:40px;
  box-shadow:var(--shadow-panel);
}
.cta-card::before{
  content:"";position:absolute;top:-80px;right:-80px;
  width:320px;height:320px;border-radius:50%;
  background:radial-gradient(circle,rgba(var(--primary-rgb),.2),transparent 70%);
  pointer-events:none;
}
.cta-content{flex:1;position:relative;z-index:2}
.cta-content h2{
  font-size:clamp(1.6rem,3.5vw,2.3rem);
  font-weight:800;color:var(--text-strong);
  margin-bottom:14px;
}
.cta-content p{
  color:rgba(255,255,255,.7);
  font-size:1rem;line-height:1.8;
  margin-bottom:30px;
}
.cta-actions{display:flex;flex-wrap:wrap;gap:16px}
.cta-decoration{
  flex-shrink:0;width:130px;height:130px;
  display:flex;align-items:center;justify-content:center;
  border-radius:50%;
  background:linear-gradient(135deg,rgba(var(--primary-rgb),.2),rgba(var(--secondary-rgb),.2));
  border:1px solid rgba(var(--primary-rgb),.3);
  color:var(--primary);font-size:2.5rem;
  box-shadow:var(--glow-primary);
  animation:float 4s ease-in-out infinite;
}
@keyframes float{
  0%,100%{transform:translateY(0)}
  50%{transform:translateY(-10px)}
}

/* ===== Footer ===== */
.site-footer{
  background:var(--bg-deep);
  border-top:1px solid var(--border);
  padding:70px 0 30px;
}
.footer-grid{
  display:grid;grid-template-columns:2fr 1fr 1fr 1.4fr;
  gap:44px;margin-bottom:50px;
}
.footer-brand .logo{font-size:1.3rem;margin-bottom:18px}
.footer-brand p{
  color:rgba(255,255,255,.5);
  font-size:.88rem;line-height:1.8;
  max-width:320px;
}
.footer-col h4{
  color:var(--text-strong);font-size:1rem;font-weight:700;
  margin-bottom:20px;
}
.footer-col ul{display:flex;flex-direction:column;gap:12px}
.footer-col ul a{
  color:rgba(255,255,255,.5);font-size:.88rem;
  transition:all .2s;
  display:inline-flex;align-items:center;gap:6px;
}
.footer-col ul a:hover{
  color:var(--primary);
  transform:translateX(3px);
}
.footer-col p{color:rgba(255,255,255,.5);font-size:.85rem;line-height:1.8}
.footer-bottom{
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:12px;
  border-top:1px solid var(--border);
  padding-top:26px;
}
.footer-bottom p{
  color:rgba(255,255,255,.35);
  font-size:.82rem;
}
.footer-bottom p i{color:var(--primary);margin-right:4px}

/* ===== Responsive ===== */
@media screen and (max-width:1024px){
  :root{--section-pad:80px}
  .header-inner{gap:16px}
  .feature-story{padding:70px 0}
  .feature-grid{gap:40px}
  .cta-card{padding:50px 40px}
}
@media screen and (max-width:768px){
  :root{--section-pad:64px}
  .nav{display:none}
  .nav-toggle{display:flex}
  .cat-hero{padding:90px 0 70px}
  .hero-stats{gap:24px}
  .hero-stat strong{font-size:1.5rem}
  .feature-grid{grid-template-columns:1fr}
  .feature-media img{min-height:260px}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px}
  .cta-card{flex-direction:column;padding:44px 30px}
  .cta-decoration{width:100px;height:100px;font-size:1.8rem}
}
@media screen and (max-width:520px){
  .container{padding:0 18px}
  .hero-actions{flex-direction:column;width:100%}
  .hero-actions .btn{justify-content:center;width:100%}
  .news-card-body{padding:20px}
  .footer-grid{grid-template-columns:1fr}
  .footer-bottom{flex-direction:column;text-align:center}
  .feature-grid{gap:28px}
  .panel-block{padding:32px 24px}
  .cta-card{padding:36px 22px}
  .cta-actions{flex-direction:column;width:100%}
  .cta-actions .btn{justify-content:center;width:100%}
}

/* roulang page: category3 */
:root {
  --primary: #00e5cc;
  --primary-rgb: 0, 229, 204;
  --secondary: #ff3d8d;
  --accent: #7a5cff;
  --bg-deep: #060a10;
  --bg-dark: #0b1017;
  --bg-card: #111a24;
  --bg-card-hover: #16212e;
  --text-main: #e8edf2;
  --text-muted: #8ba0b0;
  --border: rgba(255, 255, 255, .08);
  --border-neon: rgba(0, 229, 204, .35);
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-card: 0 8px 30px rgba(0, 0, 0, .35);
  --shadow-glow: 0 0 24px rgba(0, 229, 204, .15);
  --transition: all .25s cubic-bezier(.4, 0, .2, 1);
  --space-section: 90px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  background: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}

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

ul,
ol {
  list-style: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.row {
  max-width: 1200px;
}

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(6, 10, 16, .92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.35rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
  white-space: nowrap;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  color: #04211d;
  font-size: 1rem;
  box-shadow: var(--shadow-glow);
}

.logo > span:last-child {
  color: var(--primary);
}

.nav {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav a {
  color: var(--text-muted);
  padding: 8px 16px;
  border-radius: 999px;
  font-size: .9rem;
  font-weight: 500;
  transition: var(--transition);
  display: inline-block;
}

.nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, .06);
}

.nav a.active {
  color: var(--primary);
  background: rgba(0, 229, 204, .1);
  box-shadow: inset 0 0 0 1px var(--border-neon), var(--shadow-glow);
}

.nav .nav-cta {
  background: linear-gradient(135deg, var(--primary), #00b8a0);
  color: #04211d;
  font-weight: 700;
  padding: 10px 20px;
  box-shadow: 0 4px 20px rgba(0, 229, 204, .3);
  margin-left: 8px;
}

.nav .nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 26px rgba(0, 229, 204, .5);
  color: #04211d;
  background: linear-gradient(135deg, var(--primary), #00b8a0);
}

.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 12px;
  border: 1px solid var(--border);
  color: #fff;
  font-size: 1.1rem;
  align-items: center;
  justify-content: center;
}

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  padding: 120px 0 110px;
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid var(--border);
}

.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(6, 10, 16, .55) 0%, rgba(6, 10, 16, .78) 60%, var(--bg-dark) 100%);
  z-index: 1;
}

.page-banner .container {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 860px;
}

.banner-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  border-radius: 999px;
  background: rgba(0, 229, 204, .1);
  border: 1px solid var(--border-neon);
  color: var(--primary);
  font-size: .85rem;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-glow);
}

.page-banner h1 {
  font-size: 2.8rem;
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 18px;
  background: linear-gradient(135deg, #fff 50%, var(--primary));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-banner p {
  font-size: 1.08rem;
  color: rgba(232, 237, 242, .75);
  line-height: 1.85;
  margin-bottom: 34px;
}

.banner-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: 999px;
  font-size: .95rem;
  font-weight: 600;
  border: none;
  transition: var(--transition);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), #00b8a0);
  color: #04211d;
  box-shadow: 0 4px 20px rgba(0, 229, 204, .3);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(0, 229, 204, .45);
  color: #04211d;
}

.btn-ghost {
  background: transparent;
  color: #fff;
  border: 1px solid rgba(255, 255, 255, .25);
}

.btn-ghost:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(0, 229, 204, .06);
  transform: translateY(-2px);
}

/* ===== Sections ===== */
.section {
  padding: var(--space-section) 0;
}

.section-alt {
  background: linear-gradient(180deg, var(--bg-dark) 0%, var(--bg-card) 100%);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 52px;
}

.section-tag {
  display: inline-block;
  padding: 6px 16px;
  border-radius: 999px;
  background: rgba(0, 229, 204, .1);
  border: 1px solid var(--border-neon);
  color: var(--primary);
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: 1px;
  margin-bottom: 14px;
}

.section-head h2 {
  font-size: 2rem;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 12px;
  color: #fff;
}

.section-head p {
  color: var(--text-muted);
  font-size: .95rem;
}

.section-intro {
  text-align: center;
  max-width: 660px;
  margin: 0 auto 30px;
  color: var(--text-muted);
  font-size: .95rem;
  line-height: 1.8;
}

/* ===== Principle Cards ===== */
.principle-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  height: 100%;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.principle-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: 0;
  transition: var(--transition);
}

.principle-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-neon);
  box-shadow: var(--shadow-card), var(--shadow-glow);
  background: var(--bg-card-hover);
}

.principle-card:hover::before {
  opacity: 1;
}

.card-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  background: linear-gradient(135deg, rgba(0, 229, 204, .15), rgba(122, 92, 255, .15));
  border: 1px solid var(--border-neon);
  color: var(--primary);
  margin-bottom: 20px;
  box-shadow: var(--shadow-glow);
}

.principle-card h3 {
  font-size: 1.18rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #fff;
}

.principle-card p {
  color: var(--text-muted);
  font-size: .88rem;
  line-height: 1.75;
}

/* ===== Guide ===== */
.guide-wrap {
  display: flex;
  gap: 60px;
  align-items: center;
}

.guide-img {
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--border);
  width: 100%;
  height: auto;
  object-fit: cover;
}

.guide-list {
  display: grid;
  gap: 0;
}

.guide-list li {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 0;
  border-bottom: 1px solid var(--border);
}

.guide-list li:last-child {
  border-bottom: none;
}

.guide-list li > i {
  color: var(--primary);
  font-size: 1.15rem;
  margin-top: 5px;
  flex-shrink: 0;
}

.guide-list strong {
  display: block;
  font-size: 1rem;
  margin-bottom: 4px;
  color: #fff;
}

.guide-list span {
  color: var(--text-muted);
  font-size: .88rem;
  line-height: 1.65;
}

/* ===== Steps ===== */
.steps-wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.step-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 42px 32px;
  text-align: center;
  transition: var(--transition);
  position: relative;
}

.step-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-neon);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.step-num {
  width: 50px;
  height: 50px;
  margin: 0 auto 22px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  font-weight: 800;
  color: #04211d;
  background: linear-gradient(135deg, var(--primary), #00b8a0);
  box-shadow: var(--shadow-glow);
}

.step-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: #fff;
}

.step-card p {
  color: var(--text-muted);
  font-size: .88rem;
  line-height: 1.75;
}

/* ===== Post Cards ===== */
.post-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.post-card:hover {
  transform: translateY(-6px);
  border-color: var(--border-neon);
  box-shadow: var(--shadow-card), var(--shadow-glow);
}

.post-thumb {
  height: 190px;
  overflow: hidden;
  position: relative;
}

.post-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .5s ease;
}

.post-card:hover .post-thumb img {
  transform: scale(1.06);
}

.post-thumb::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 60%, rgba(6, 10, 16, .55));
}

.post-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
  background: rgba(122, 92, 255, .15);
  border: 1px solid rgba(122, 92, 255, .3);
  color: #b3a1ff;
  margin-bottom: 12px;
  align-self: flex-start;
}

.badge-green {
  background: rgba(0, 229, 204, .12);
  border-color: var(--border-neon);
  color: var(--primary);
}

.post-card h3 {
  font-size: 1.08rem;
  font-weight: 700;
  line-height: 1.5;
  margin-bottom: 8px;
}

.post-card h3 a {
  color: #fff;
}

.post-card h3 a:hover {
  color: var(--primary);
}

.post-card .post-desc {
  color: var(--text-muted);
  font-size: .88rem;
  line-height: 1.65;
  flex: 1;
}

.post-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 16px;
  color: rgba(255, 255, 255, .4);
  font-size: .78rem;
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

/* ===== FAQ ===== */
.faq-wrap {
  max-width: 800px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 14px;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--border-neon);
}

.faq-item.open {
  border-color: var(--border-neon);
  box-shadow: 0 0 20px rgba(0, 229, 204, .08);
}

.faq-q {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 26px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  position: relative;
  color: #fff;
}

.faq-q .faq-badge {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #04211d;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  font-weight: 800;
  flex-shrink: 0;
}

.faq-q::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  margin-left: auto;
  color: var(--text-muted);
  transition: var(--transition);
  font-size: .8rem;
}

.faq-item.open .faq-q::after {
  transform: rotate(180deg);
  color: var(--primary);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
  padding: 0 26px;
  color: var(--text-muted);
  font-size: .9rem;
  line-height: 1.75;
}

.faq-item.open .faq-a {
  max-height: 400px;
  padding: 0 26px 22px;
}

.faq-a p {
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 88px 0;
  background-image: linear-gradient(135deg, rgba(0, 229, 204, .1), rgba(122, 92, 255, .1)), url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  border-top: 1px solid var(--border);
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(6, 10, 16, .82);
}

.cta-section .container {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 700px;
}

.cta-section h2 {
  font-size: 2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}

.cta-section p {
  color: rgba(232, 237, 242, .72);
  font-size: 1rem;
  margin-bottom: 30px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-deep);
  border-top: 1px solid var(--border);
  padding: 64px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1.2fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand .logo {
  font-size: 1.25rem;
  margin-bottom: 16px;
}

.footer-brand p {
  color: rgba(255, 255, 255, .5);
  font-size: .88rem;
  line-height: 1.7;
  max-width: 320px;
}

.footer-col h4 {
  color: #fff;
  font-size: .95rem;
  font-weight: 600;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.footer-col ul li {
  margin-bottom: 10px;
}

.footer-col ul li a {
  color: rgba(255, 255, 255, .5);
  font-size: .88rem;
  transition: var(--transition);
}

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

.footer-bottom {
  border-top: 1px solid var(--border);
  padding-top: 20px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: rgba(255, 255, 255, .35);
  font-size: .82rem;
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== Foundation Grid adjustments ===== */
.grid-x.grid-margin-x > .cell {
  margin-bottom: 24px;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .steps-wrap {
    gap: 20px;
  }

  .principle-card {
    padding: 28px 22px;
  }

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

@media (max-width: 768px) {
  :root {
    --space-section: 60px;
  }

  .header-inner {
    height: 64px;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: var(--bg-deep);
    border-bottom: 1px solid var(--border);
    padding: 16px 20px;
    gap: 6px;
    opacity: 0;
    transform: translateY(-10px);
    pointer-events: none;
    transition: var(--transition);
    box-shadow: 0 20px 40px rgba(0, 0, 0, .4);
  }

  .nav.open {
    opacity: 1;
    transform: translateY(0);
    pointer-events: auto;
  }

  .nav a {
    display: block;
    width: 100%;
    text-align: center;
    padding: 12px 16px;
  }

  .nav .nav-cta {
    margin-left: 0;
    margin-top: 8px;
  }

  .page-banner {
    padding: 88px 0 76px;
  }

  .page-banner h1 {
    font-size: 2.2rem;
  }

  .page-banner p {
    font-size: 1rem;
  }

  .guide-wrap {
    flex-direction: column;
    gap: 32px;
  }

  .steps-wrap {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin: 0 auto;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }

  .section-head h2 {
    font-size: 1.6rem;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }

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

  .page-banner h1 {
    font-size: 1.75rem;
  }

  .section-head h2 {
    font-size: 1.4rem;
  }

  .banner-actions {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }

  .banner-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }

  .post-body {
    padding: 20px;
  }
}