/* roulang page: index */
:root{
  --primary:#1e5eff;
  --primary-dark:#0a3fbd;
  --accent:#00b8a9;
  --bg:#f6f8fc;
  --text:#1a1f36;
  --text-light:#5b6478;
  --border:#e2e8f0;
  --radius:16px;
  --radius-lg:24px;
  --shadow:0 10px 30px rgba(26,31,36,.08);
  --shadow-lg:0 20px 44px rgba(26,31,36,.12);
  --spacing:80px;
}
*{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;background:var(--bg);color:var(--text);line-height:1.7;font-size:16px;-webkit-font-smoothing:antialiased}
a{color:inherit;text-decoration:none;transition:color .2s ease}
img{max-width:100%;display:block;border-radius:var(--radius)}
button{font-family:inherit;cursor:pointer;border:none;background:none}
input,textarea{font-family:inherit;outline:none;border:1px solid var(--border);border-radius:12px;padding:10px 14px;font-size:14px;width:100%;transition:border-color .2s}
input:focus,textarea:focus{border-color:var(--primary);box-shadow:0 0 0 3px rgba(30,94,255,.12)}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:var(--spacing) 0}
.section-header{max-width:620px;margin:0 auto 48px;text-align:center}
.section-tag{display:inline-flex;align-items:center;gap:6px;background:#eef2ff;color:var(--primary);font-size:13px;font-weight:700;letter-spacing:1px;padding:7px 16px;border-radius:999px;margin-bottom:14px}
.section-title{font-size:32px;font-weight:800;line-height:1.3;letter-spacing:-.5px;margin-bottom:14px;color:var(--text)}
.section-desc{color:var(--text-light);font-size:16px;line-height:1.8}

/* Header 悬浮胶囊导航 */
.site-header{
  position:fixed;top:14px;left:50%;transform:translateX(-50%);z-index:1000;
  width:calc(100% - 24px);max-width:1180px;
  background:rgba(255,255,255,.88);
  backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);
  border:1px solid rgba(255,255,255,.65);
  border-bottom:1px solid rgba(226,232,240,.6);
  border-radius:60px;
  box-shadow:0 10px 28px rgba(15,23,42,.08);
}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:66px;padding:0 8px 0 22px}
.logo{display:flex;align-items:center;gap:8px;font-size:18px;font-weight:800;letter-spacing:-.3px;color:var(--text)}
.logo-dot{width:10px;height:10px;border-radius:50%;background:linear-gradient(135deg,var(--primary),var(--accent));box-shadow:0 0 0 4px rgba(30,94,255,.15)}
.main-nav{display:flex;align-items:center;gap:2px}
.nav-link{display:inline-block;padding:9px 18px;border-radius:999px;font-size:14px;font-weight:600;color:var(--text);transition:all .2s ease;white-space:nowrap}
.nav-link:hover{background:#eef2ff;color:var(--primary)}
.nav-link.active{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(30,94,255,.28)}
.nav-cta{margin-left:8px;white-space:nowrap}
.nav-toggle{display:none;width:42px;height:42px;align-items:center;justify-content:center;border-radius:50%;background:#f1f5f9;color:var(--text);font-size:17px;transition:background .2s}
.nav-toggle:hover{background:#e2e8f0}

/* 按钮 */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:999px;font-weight:700;font-size:15px;padding:13px 28px;transition:all .25s ease;line-height:1.4;white-space:nowrap}
.btn-sm{padding:8px 18px;font-size:13px;border-radius:999px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 8px 20px rgba(30,94,255,.28)}
.btn-primary:hover{background:var(--primary-dark);transform:translateY(-2px);box-shadow:0 12px 26px rgba(30,94,255,.35)}
.btn-white{background:#fff;color:var(--text);box-shadow:0 8px 20px rgba(15,23,42,.12)}
.btn-white:hover{transform:translateY(-2px);box-shadow:0 12px 26px rgba(15,23,42,.18)}
.btn-outline{border:2px solid var(--border);color:var(--text);background:transparent}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);transform:translateY(-2px)}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 20px rgba(0,184,169,.28)}
.btn-accent:hover{background:#009b8e;transform:translateY(-2px)}

/* Hero */
.hero{
  position:relative;padding:168px 0 120px;color:#fff;
  background:
    linear-gradient(135deg,rgba(15,23,42,.93) 0%,rgba(30,41,59,.78) 46%,rgba(10,63,189,.52) 100%),
    url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  overflow:hidden;
}
.hero::after{content:'';position:absolute;right:-160px;top:-80px;width:420px;height:420px;border-radius:50%;background:radial-gradient(circle,rgba(0,184,169,.32),transparent 70%);pointer-events:none}
.hero-inner{display:grid;grid-template-columns:1.1fr .9fr;gap:56px;align-items:center;position:relative;z-index:2}
.hero-badge{display:inline-flex;align-items:center;gap:10px;background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);color:#e2e8f0;font-size:13px;font-weight:600;padding:8px 18px;border-radius:999px;margin-bottom:22px}
.hero-badge i{color:#5eead4}
.hero h1{font-size:46px;line-height:1.22;font-weight:900;letter-spacing:-1px;margin-bottom:20px}
.hero h1 span{color:#7dd3fc;position:relative}
.hero p{font-size:17px;line-height:1.85;color:rgba(248,250,252,.85);max-width:520px;margin-bottom:32px}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px}
.hero-meta{display:flex;flex-wrap:wrap;gap:22px;margin-top:34px;font-size:14px;color:rgba(248,250,252,.75)}
.hero-meta i{color:#5eead4;margin-right:6px}

/* Hero 右侧速览卡片 */
.hero-card{
  background:rgba(255,255,255,.1);
  border:1px solid rgba(255,255,255,.16);
  border-radius:var(--radius-lg);
  padding:28px;backdrop-filter:blur(10px);
  box-shadow:0 24px 48px rgba(0,0,0,.18);
}
.hero-card-title{font-size:16px;font-weight:800;display:flex;align-items:center;justify-content:space-between;margin-bottom:20px;color:#f1f5f9}
.hero-card-title .live-dot{width:8px;height:8px;border-radius:50%;background:#34d399;box-shadow:0 0 0 4px rgba(52,211,153,.2);animation:pulse 1.8s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.5}}
.hero-entry-list{display:flex;flex-direction:column;gap:12px}
.hero-entry{display:flex;align-items:center;justify-content:space-between;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.1);border-radius:14px;padding:14px 16px;transition:all .2s}
.hero-entry:hover{background:rgba(255,255,255,.16);border-color:rgba(255,255,255,.22);transform:translateX(4px)}
.hero-entry .rank{width:26px;height:26px;border-radius:8px;background:rgba(30,94,255,.35);color:#fff;font-size:12px;font-weight:800;display:flex;align-items:center;justify-content:center;margin-right:12px}
.hero-entry .info{flex:1}
.hero-entry .name{font-size:14px;font-weight:700;color:#f8fafc}
.hero-entry .sub{font-size:12px;color:rgba(248,250,252,.6)}
.hero-entry .status{font-size:12px;font-weight:700;padding:5px 12px;border-radius:999px}
.status-ok{background:rgba(52,211,153,.18);color:#6ee7b7}
.status-update{background:rgba(251,191,36,.16);color:#fcd34d}

/* 统计条 */
.stats-section{margin-top:-46px;position:relative;z-index:5}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);background:#fff;border-radius:var(--radius-lg);box-shadow:var(--shadow-lg);padding:32px 24px;border:1px solid rgba(226,232,240,.6)}
.stat-item{text-align:center;padding:8px;position:relative}
.stat-item + .stat-item::before{content:'';position:absolute;left:0;top:50%;transform:translateY(-50%);width:1px;height:48px;background:var(--border)}
.stat-num{font-size:36px;font-weight:900;letter-spacing:-1px;color:var(--text);line-height:1.2}
.stat-num span{color:var(--primary)}
.stat-label{font-size:14px;color:var(--text-light);margin-top:6px}

/* 核心说明 */
.intro-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.intro-media{position:relative}
.intro-media img{border-radius:var(--radius-lg);object-fit:cover;width:100%;height:420px;box-shadow:var(--shadow-lg)}
.intro-media::after{content:'';position:absolute;inset:auto -16px -16px auto;width:180px;height:180px;border-radius:var(--radius-lg);background:linear-gradient(135deg,var(--primary),var(--accent));z-index:-1;opacity:.2}
.intro-tag{display:inline-flex;align-items:center;gap:6px;background:#eef2ff;color:var(--primary);font-size:13px;font-weight:700;padding:7px 16px;border-radius:999px;margin-bottom:16px}
.intro-grid h2{font-size:30px;font-weight:800;line-height:1.35;letter-spacing:-.5px;margin-bottom:18px}
.intro-grid p{color:var(--text-light);font-size:15px;line-height:1.9;margin-bottom:14px}
.intro-feature-list{list-style:none;display:grid;gap:12px;margin-top:24px}
.intro-feature-list li{display:flex;align-items:center;gap:12px;background:#fff;border:1px solid var(--border);border-radius:14px;padding:14px 18px;font-size:15px;font-weight:600}
.intro-feature-list li i{width:28px;height:28px;border-radius:9px;background:#eef2ff;color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:13px}

/* 分类入口 */
.category-section{background:#fff;border-top:1px solid var(--border);border-bottom:1px solid var(--border)}
.category-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:28px}
.category-card{border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;background:#fff;transition:all .3s ease;box-shadow:0 4px 14px rgba(15,23,42,.04)}
.category-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(30,94,255,.25)}
.category-media{position:relative;height:220px;overflow:hidden}
.category-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.category-card:hover .category-media img{transform:scale(1.05)}
.category-media::after{content:'';position:absolute;inset:0;background:linear-gradient(180deg,transparent 55%,rgba(15,23,42,.55))}
.category-tag{position:absolute;z-index:2;left:18px;top:18px;background:rgba(255,255,255,.92);color:var(--primary);font-size:12px;font-weight:700;padding:6px 14px;border-radius:999px;box-shadow:0 4px 12px rgba(0,0,0,.08)}
.category-body{padding:26px 28px 28px}
.category-body h3{font-size:21px;font-weight:800;margin-bottom:10px}
.category-body p{color:var(--text-light);font-size:14px;line-height:1.8;margin-bottom:18px}
.btn-text{display:inline-flex;align-items:center;gap:8px;font-size:15px;font-weight:700;color:var(--primary);transition:gap .2s}
.btn-text:hover{gap:12px;color:var(--primary-dark)}
.btn-text i{font-size:13px}

/* 最新信息 CMS */
.news-section{background:var(--bg)}
.news-layout{display:grid;grid-template-columns:1fr;gap:16px;max-width:880px;margin:0 auto}
.news-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius);padding:22px 24px;transition:all .25s ease;box-shadow:0 2px 8px rgba(15,23,42,.03)}
.news-card:hover{box-shadow:var(--shadow);transform:translateY(-2px);border-color:rgba(30,94,255,.18)}
.news-card a{display:flex;align-items:center;gap:22px}
.news-card .news-body{flex:1}
.news-card .news-title{font-size:17px;font-weight:700;color:var(--text);line-height:1.5;margin-bottom:6px;transition:color .2s}
.news-card a:hover .news-title{color:var(--primary)}
.news-card .news-excerpt{font-size:14px;color:var(--text-light);text-overflow:ellipsis;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;display:-webkit-box}
.news-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--text-light);margin-top:10px}
.news-meta .badge{background:#eef2ff;color:var(--primary);font-size:12px;font-weight:700;padding:4px 12px;border-radius:999px}
.news-meta time{display:inline-flex;align-items:center;gap:5px}
.empty-tip{text-align:center;padding:40px 20px;color:var(--text-light);font-size:16px;background:#fff;border:1px dashed var(--border);border-radius:var(--radius)}

/* 流程 */
.steps-section{background:#0f172a;color:#fff}
.steps-section .section-title{color:#fff}
.steps-section .section-desc{color:rgba(248,250,252,.7)}
.steps-section .section-tag{background:rgba(30,94,255,.25);color:#93c5fd}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step-item{background:rgba(255,255,255,.06);border:1px solid rgba(255,255,255,.1);border-radius:var(--radius-lg);padding:30px 26px;position:relative;transition:all .3s ease}
.step-item:hover{background:rgba(255,255,255,.1);transform:translateY(-4px);border-color:rgba(30,94,255,.4)}
.step-num{width:44px;height:44px;border-radius:14px;background:linear-gradient(135deg,var(--primary),var(--accent));display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:900;margin-bottom:18px;box-shadow:0 8px 20px rgba(30,94,255,.3)}
.step-item h3{font-size:18px;font-weight:800;margin-bottom:10px;color:#f1f5f9}
.step-item p{font-size:14px;color:rgba(248,250,252,.7);line-height:1.75}
.step-item::after{content:'';position:absolute;right:-14px;top:50%;transform:translateY(-50%);width:24px;height:1px;background:rgba(255,255,255,.2)}
.step-item:last-child::after{display:none}

/* 功能特点 */
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);padding:26px 24px;transition:all .3s ease;position:relative;overflow:hidden}
.feature-card::before{content:'';position:absolute;top:0;left:0;width:100%;height:3px;background:linear-gradient(90deg,var(--primary),var(--accent));opacity:0;transition:opacity .3s}
.feature-card:hover{box-shadow:var(--shadow-lg);transform:translateY(-4px);border-color:rgba(30,94,255,.18)}
.feature-card:hover::before{opacity:1}
.feature-icon{width:52px;height:52px;border-radius:16px;background:#eef2ff;color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:21px;margin-bottom:18px;transition:all .3s}
.feature-card:hover .feature-icon{background:var(--primary);color:#fff;transform:rotate(-6deg) scale(1.05)}
.feature-card h3{font-size:17px;font-weight:800;margin-bottom:8px}
.feature-card p{font-size:14px;color:var(--text-light);line-height:1.8}

/* FAQ */
.faq-list{max-width:780px;margin:0 auto;display:flex;flex-direction:column;gap:14px}
.faq-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;transition:box-shadow .25s,border-color .25s}
.faq-item.open{box-shadow:var(--shadow);border-color:rgba(30,94,255,.18)}
.faq-question{width:100%;display:flex;align-items:center;justify-content:space-between;padding:22px 26px;text-align:left;font-size:16px;font-weight:700;color:var(--text);background:transparent;transition:background .2s}
.faq-question:hover{background:#f8fafc}
.faq-item.open .faq-question{color:var(--primary)}
.faq-icon{width:30px;height:30px;border-radius:50%;background:#eef2ff;color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:13px;transition:transform .3s,background .3s;flex-shrink:0}
.faq-item.open .faq-icon{transform:rotate(45deg);background:var(--primary);color:#fff}
.faq-answer{max-height:0;overflow:hidden;transition:max-height .4s ease}
.faq-answer-inner{padding:0 26px 22px;font-size:15px;color:var(--text-light);line-height:1.9;border-top:1px solid transparent}
.faq-item.open .faq-answer{max-height:400px}
.faq-item.open .faq-answer-inner{border-top-color:var(--border);padding-top:16px}

/* CTA */
.cta-section{position:relative;padding:100px 0;color:#fff;background:linear-gradient(135deg,rgba(15,23,42,.9),rgba(10,63,189,.75)),url('/assets/images/backpic/back-2.png') center/cover no-repeat}
.cta-box{text-align:center;max-width:640px;margin:0 auto}
.cta-box h2{font-size:34px;font-weight:900;margin-bottom:14px;letter-spacing:-.5px}
.cta-box p{font-size:16px;color:rgba(248,250,252,.8);margin-bottom:30px}
.cta-box .cta-actions{display:flex;flex-wrap:wrap;justify-content:center;gap:16px}

/* Footer */
.site-footer{background:#0f172a;color:#94a3b8;padding:64px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:48px;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.08)}
.footer-brand .logo{color:#f1f5f9;margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.9;max-width:320px}
.footer-col h4{color:#f1f5f9;font-size:15px;font-weight:800;margin-bottom:18px}
.footer-links{list-style:none;display:grid;gap:10px}
.footer-links a{font-size:14px;color:#94a3b8;transition:all .2s}
.footer-links a:hover{color:#7dd3fc;padding-left:4px}
.footer-bottom{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:12px;padding:24px 0 28px;font-size:13px;color:#64748b}
.footer-bottom a{color:#94a3b8}

/* 移动端 */
@media(max-width:1024px){
  .hero h1{font-size:36px}
  .hero-inner{grid-template-columns:1fr;gap:36px}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:20px 0}
  .stat-item:nth-child(3)::before{display:none}
  .steps-grid{grid-template-columns:repeat(2,1fr)}
  .step-item::after{display:none}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .intro-grid{grid-template-columns:1fr;gap:40px}
  .footer-grid{grid-template-columns:1fr 1fr}
}
@media(max-width:768px){
  :root{--spacing:60px}
  .site-header{top:10px}
  .header-inner{height:60px}
  .main-nav{position:absolute;top:72px;left:10px;right:10px;background:#fff;border-radius:20px;box-shadow:var(--shadow-lg);flex-direction:column;align-items:stretch;padding:12px;display:none;border:1px solid var(--border)}
  .main-nav.open{display:flex;animation:navDrop .25s ease}
  @keyframes navDrop{from{opacity:0;transform:translateY(-8px)}to{opacity:1;transform:translateY(0)}}
  .nav-link{padding:12px 16px;text-align:center}
  .nav-cta{display:none}
  .nav-toggle{display:flex}
  .hero{padding-top:140px;padding-bottom:90px}
  .hero h1{font-size:30px}
  .hero p{font-size:15px}
  .hero-card{padding:20px}
  .section-title{font-size:26px}
  .category-grid{grid-template-columns:1fr}
  .features-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .news-card a{flex-direction:column;align-items:flex-start}
  .news-card .news-body{width:100%}
  .cta-box h2{font-size:26px}
  .footer-grid{grid-template-columns:1fr;gap:28px}
}
@media(max-width:520px){
  .hero h1{font-size:26px}
  .hero-actions{flex-direction:column;width:100%}
  .hero-actions .btn{width:100%}
  .stats-grid{grid-template-columns:1fr 1fr;padding:20px 8px}
  .stat-num{font-size:28px}
  .stat-item + .stat-item::before{display:none}
  .category-media{height:180px}
  .section{padding:48px 0}
  .faq-question{padding:18px 18px;font-size:15px}
  .faq-answer-inner{padding:0 18px 18px}
  .feature-card{padding:20px}
  .step-item{padding:24px}
  .cta-box .cta-actions{flex-direction:column;width:100%}
  .cta-box .btn{width:100%}
  .footer-bottom{flex-direction:column;text-align:center}
}

/* roulang page: article */
:root{
  --primary:#1e40af;
  --primary-light:#3b82f6;
  --primary-lighter:#dbeafe;
  --primary-dark:#1e3a8a;
  --accent:#f59e0b;
  --accent-light:#fef3c7;
  --bg:#f8fafc;
  --bg-white:#ffffff;
  --bg-dark:#0f172a;
  --text:#0f172a;
  --text-light:#64748b;
  --text-white:#f1f5f9;
  --border:#e2e8f0;
  --border-light:#f1f5f9;
  --radius-lg:20px;
  --radius:14px;
  --radius-sm:10px;
  --shadow-sm:0 2px 8px rgba(15,23,42,0.06);
  --shadow:0 10px 30px rgba(15,23,42,0.08);
  --shadow-hover:0 16px 44px rgba(15,23,42,0.13);
  --space:80px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%;}
body{
  font-family:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  font-size:16px;
}
img{max-width:100%;height:auto;display:block;}
a{color:inherit;text-decoration:none;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
.container{max-width:1200px;margin:0 auto;padding:0 24px;}

/* Header */
.site-header{
  position:sticky;top:16px;z-index:100;
  margin-top:16px;
}
.header-inner{
  background:rgba(255,255,255,0.92);
  backdrop-filter:blur(14px);
  -webkit-backdrop-filter:blur(14px);
  border:1px solid var(--border);
  border-radius:60px;
  padding:10px 20px 10px 24px;
  box-shadow:var(--shadow);
  display:flex;align-items:center;gap:24px;
}
.logo{
  display:inline-flex;align-items:center;gap:10px;
  font-weight:800;font-size:20px;color:var(--text);
  letter-spacing:-0.3px;white-space:nowrap;
}
.logo-dot{
  width:32px;height:32px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  position:relative;flex-shrink:0;
  box-shadow:0 4px 12px rgba(30,64,175,0.3);
}
.logo-dot::after{
  content:'';position:absolute;inset:8px;
  background:rgba(255,255,255,0.9);
  border-radius:6px;
}
.main-nav{display:flex;align-items:center;gap:4px;flex:1;justify-content:flex-end;}
.nav-link{
  padding:8px 16px;border-radius:30px;font-size:15px;font-weight:500;
  color:var(--text-light);transition:all .25s ease;white-space:nowrap;
}
.nav-link:hover{background:var(--primary-lighter);color:var(--primary);}
.nav-link.active{background:var(--primary);color:#fff;font-weight:600;box-shadow:0 4px 14px rgba(30,64,175,0.25);}
.nav-cta{
  display:inline-flex;align-items:center;gap:6px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;border:none;border-radius:30px;padding:9px 20px;
  font-size:14px;font-weight:600;cursor:pointer;
  box-shadow:0 4px 14px rgba(30,64,175,0.3);
  transition:all .25s ease;white-space:nowrap;
}
.nav-cta:hover{transform:translateY(-1px);box-shadow:0 8px 20px rgba(30,64,175,0.35);}
.nav-toggle{
  display:none;width:40px;height:40px;border-radius:12px;
  border:1px solid var(--border);background:var(--bg-white);
  align-items:center;justify-content:center;font-size:18px;color:var(--text);
  cursor:pointer;transition:all .2s ease;
}
.nav-toggle:hover{background:var(--primary-lighter);color:var(--primary);}

/* Buttons */
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  padding:11px 24px;border-radius:30px;font-size:15px;font-weight:600;
  border:none;cursor:pointer;transition:all .25s ease;
}
.btn-primary{
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  color:#fff;box-shadow:0 4px 14px rgba(30,64,175,0.25);
}
.btn-primary:hover{transform:translateY(-2px);box-shadow:0 10px 24px rgba(30,64,175,0.35);}
.btn-outline{
  border:2px solid var(--border);background:transparent;color:var(--text);
}
.btn-outline:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-lighter);}
.btn-outline-light{
  border:2px solid rgba(255,255,255,0.6);color:#fff;background:rgba(255,255,255,0.12);
}
.btn-outline-light:hover{background:rgba(255,255,255,0.2);border-color:#fff;}
.btn-sm{padding:8px 18px;font-size:14px;}
.btn-lg{padding:14px 32px;font-size:16px;}
.btn-block{width:100%;}
.btn:focus-visible,.nav-link:focus-visible,.nav-toggle:focus-visible{
  outline:3px solid rgba(30,64,175,0.4);outline-offset:2px;
}

/* Badges */
.badge{
  display:inline-flex;align-items:center;gap:6px;
  background:var(--primary-lighter);color:var(--primary);
  border-radius:20px;padding:4px 14px;font-size:13px;font-weight:600;
}
.badge-light{background:rgba(255,255,255,0.25);color:var(--text-white);backdrop-filter:blur(4px);}
.badge-accent{
  background:var(--accent-light);color:#b45309;
  border-radius:20px;padding:4px 14px;font-size:13px;font-weight:600;
}

/* Article Hero */
.article-hero{
  position:relative;padding:70px 0 56px;
  background:linear-gradient(135deg,rgba(15,23,42,0.82),rgba(30,64,175,0.75)),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;
  border-radius:0 0 42px 42px;
  overflow:hidden;
}
.article-hero::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(ellipse at top right,rgba(245,158,11,0.15),transparent 60%);
  pointer-events:none;
}
.breadcrumb{
  display:flex;align-items:center;flex-wrap:wrap;gap:8px;
  font-size:14px;margin-bottom:30px;color:rgba(255,255,255,0.8);
}
.breadcrumb a{transition:color .2s;}
.breadcrumb a:hover{color:#fff;}
.breadcrumb-sep{opacity:0.6;font-size:12px;}
.breadcrumb .current{color:#fff;font-weight:600;}
.article-hero-content{position:relative;z-index:1;max-width:900px;}
.hero-badges{display:flex;flex-wrap:wrap;gap:10px;margin-bottom:18px;}
.article-hero h1{
  font-size:clamp(1.8rem,3.5vw,2.8rem);
  font-weight:800;line-height:1.3;letter-spacing:-0.5px;
  margin-bottom:16px;
}
.article-desc{
  font-size:17px;line-height:1.7;
  color:rgba(255,255,255,0.9);
  max-width:780px;
}

/* Article Main */
.article-main-section{padding:56px 0 40px;}
.article-layout{
  display:grid;grid-template-columns:minmax(0,1fr) 340px;
  gap:40px;align-items:start;
}
.article-content-wrap{min-width:0;}
.article-paper{
  background:var(--bg-white);border-radius:var(--radius-lg);
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  padding:40px 44px;
}
.article-content{font-size:16px;line-height:1.9;color:#334155;}
.article-content h2{
  font-size:1.5rem;font-weight:700;color:var(--text);
  margin:32px 0 14px;padding-bottom:10px;
  border-bottom:2px solid var(--border-light);
}
.article-content h3{
  font-size:1.2rem;font-weight:700;color:var(--text);
  margin:26px 0 12px;
}
.article-content p{margin-bottom:16px;}
.article-content a{color:var(--primary);font-weight:600;text-decoration:underline;text-underline-offset:3px;}
.article-content ul,.article-content ol{margin:16px 0;padding-left:22px;}
.article-content li{margin-bottom:8px;}
.article-content img{border-radius:12px;margin:20px 0;box-shadow:var(--shadow-sm);}
.article-content blockquote{
  border-left:4px solid var(--primary);
  background:var(--primary-lighter);
  padding:14px 20px;border-radius:0 12px 12px 0;
  margin:20px 0;color:#1e293b;font-style:italic;
}
.article-content code{
  background:#f1f5f9;padding:2px 8px;border-radius:6px;
  font-family:"SF Mono",Consolas,monospace;font-size:0.9em;
  color:var(--primary);
}
.article-content pre{
  background:var(--bg-dark);color:#e2e8f0;padding:18px;border-radius:12px;
  overflow-x:auto;margin:20px 0;
}
.article-content pre code{background:transparent;color:inherit;padding:0;font-size:14px;}
.article-content table{width:100%;border-collapse:collapse;margin:20px 0;}
.article-content th,.article-content td{padding:12px 16px;text-align:left;border-bottom:1px solid var(--border);}
.article-content th{background:var(--bg);font-weight:700;color:var(--text);}
.article-keywords{
  display:flex;flex-wrap:wrap;align-items:center;gap:8px;
  margin-top:30px;padding-top:20px;border-top:1px solid var(--border);
}
.keyword-label{font-size:14px;color:var(--text-light);font-weight:600;}
.keyword-tag{
  background:var(--bg);border:1px solid var(--border);
  border-radius:20px;padding:3px 12px;font-size:13px;color:var(--text-light);
  transition:all .2s ease;
}
.keyword-tag:hover{border-color:var(--primary);color:var(--primary);background:var(--primary-lighter);}

/* Sidebar */
.article-sidebar{min-width:0;}
.sidebar-card{
  background:var(--bg-white);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:28px 26px;
  margin-bottom:20px;box-shadow:var(--shadow-sm);
  transition:box-shadow .3s ease;
}
.sidebar-card:hover{box-shadow:var(--shadow);}
.sidebar-card h3{
  display:flex;align-items:center;gap:10px;
  font-size:17px;font-weight:700;margin-bottom:12px;
}
.sidebar-card h3 i{color:var(--primary);}
.sidebar-card p{font-size:14px;line-height:1.7;color:var(--text-light);margin-bottom:14px;}
.sidebar-link{
  display:inline-flex;align-items:center;gap:6px;
  font-size:14px;font-weight:600;color:var(--primary);
  padding:6px 0;transition:gap .2s ease;
}
.sidebar-link:hover{gap:10px;}
.sidebar-cta{
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  color:#fff;border:none;
}
.sidebar-cta h3{color:#fff;}
.sidebar-cta h3 i{color:var(--accent);}
.sidebar-cta p{color:rgba(255,255,255,0.8);}

/* Not Found */
.not-found-card{
  background:var(--bg-white);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:60px 40px;
  text-align:center;box-shadow:var(--shadow);
}
.not-found-icon{
  width:80px;height:80px;border-radius:50%;
  background:var(--primary-lighter);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:32px;margin:0 auto 22px;
}
.not-found-card h2{font-size:24px;font-weight:700;margin-bottom:12px;}
.not-found-card p{color:var(--text-light);margin-bottom:24px;}

/* Related */
.related-section{
  padding:64px 0 50px;
  background:linear-gradient(180deg,var(--bg) 0%,var(--bg-white) 100%);
}
.section-header{
  display:flex;align-items:flex-end;justify-content:space-between;
  gap:20px;margin-bottom:36px;
}
.section-subtitle{
  display:inline-block;font-size:13px;font-weight:700;
  color:var(--primary);text-transform:uppercase;letter-spacing:1px;
  margin-bottom:8px;
}
.section-header h2{font-size:32px;font-weight:800;letter-spacing:-0.5px;}
.section-header.center{
  flex-direction:column;align-items:center;text-align:center;
}
.section-link{
  display:inline-flex;align-items:center;gap:8px;
  font-size:15px;font-weight:600;color:var(--primary);
  padding:8px 18px;border-radius:30px;border:1px solid var(--border);
  background:var(--bg-white);transition:all .25s ease;
}
.section-link:hover{border-color:var(--primary);background:var(--primary-lighter);gap:12px;}
.related-grid{
  display:grid;grid-template-columns:repeat(3,1fr);gap:24px;
}
.related-card{
  background:var(--bg-white);border:1px solid var(--border);
  border-radius:var(--radius-lg);overflow:hidden;
  transition:all .3s ease;display:flex;flex-direction:column;
}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:transparent;}
.related-cover{position:relative;height:200px;overflow:hidden;}
.related-cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease;}
.related-card:hover .related-cover img{transform:scale(1.06);}
.related-cover::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 55%,rgba(15,23,42,0.3));
}
.related-body{padding:22px 24px 26px;display:flex;flex-direction:column;flex:1;}
.related-meta{display:flex;align-items:center;gap:10px;margin-bottom:12px;}
.related-date{font-size:13px;color:var(--text-light);}
.related-body h3{
  font-size:17px;font-weight:700;line-height:1.45;
  margin-bottom:10px;color:var(--text);
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.related-body p{
  font-size:14px;color:var(--text-light);line-height:1.65;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.empty-box{
  text-align:center;padding:50px 20px;
  background:var(--bg-white);border:1px dashed var(--border);
  border-radius:var(--radius-lg);color:var(--text-light);
}

/* FAQ */
.faq-section{padding:70px 0 56px;}
.faq-grid{
  display:grid;grid-template-columns:1fr 1fr;gap:20px;
  margin-top:36px;
}
.faq-item{
  background:var(--bg-white);border:1px solid var(--border);
  border-radius:var(--radius-lg);padding:6px 4px;
  box-shadow:var(--shadow-sm);transition:box-shadow .3s ease;
}
.faq-item:hover{box-shadow:var(--shadow);}
.faq-item summary{
  list-style:none;cursor:pointer;
  padding:18px 24px;font-weight:600;font-size:16px;
  display:flex;align-items:center;justify-content:space-between;gap:14px;
}
.faq-item summary::-webkit-details-marker{display:none;}
.faq-item summary::after{
  content:'\f078';font-family:"Font Awesome 6 Free";font-weight:900;
  font-size:14px;color:var(--primary);transition:transform .3s ease;
  width:28px;height:28px;border-radius:50%;
  background:var(--primary-lighter);display:flex;
  align-items:center;justify-content:center;flex-shrink:0;
}
.faq-item[open] summary::after{transform:rotate(180deg);}
.faq-item p{
  padding:0 24px 20px;color:var(--text-light);font-size:15px;line-height:1.75;
}

/* CTA */
.cta-section{padding:30px 0 80px;}
.cta-box{
  background:linear-gradient(135deg,var(--primary-dark) 0%,var(--primary) 55%,var(--primary-light) 100%);
  border-radius:28px;padding:48px 52px;
  display:flex;align-items:center;justify-content:space-between;gap:32px;
  color:#fff;position:relative;overflow:hidden;
  box-shadow:0 20px 50px rgba(30,64,175,0.3);
}
.cta-box::before{
  content:'';position:absolute;inset:0;
  background:radial-gradient(circle at top left,rgba(255,255,255,0.15),transparent 55%);
}
.cta-box::after{
  content:'';position:absolute;bottom:-40px;right:-40px;
  width:180px;height:180px;border-radius:50%;
  background:rgba(255,255,255,0.08);
}
.cta-content{position:relative;z-index:1;}
.cta-content h2{font-size:30px;font-weight:800;margin-bottom:10px;letter-spacing:-0.5px;}
.cta-content p{color:rgba(255,255,255,0.85);font-size:16px;}
.cta-actions{display:flex;gap:14px;flex-wrap:wrap;position:relative;z-index:1;}

/* Footer */
.site-footer{
  background:var(--bg-dark);color:#94a3b8;
  padding:64px 0 0;
}
.footer-grid{
  display:grid;grid-template-columns:1.5fr 1fr 1fr;
  gap:48px;padding-bottom:44px;
}
.footer-brand{max-width:420px;}
.footer-brand .logo{color:#fff;margin-bottom:16px;}
.footer-brand p{font-size:14px;line-height:1.8;color:#94a3b8;}
.footer-col h4{
  color:#fff;font-size:15px;font-weight:700;
  margin-bottom:18px;letter-spacing:0.5px;
}
.footer-links{list-style:none;padding:0;}
.footer-links li{margin-bottom:10px;}
.footer-links a{
  color:#94a3b8;font-size:14px;
  transition:all .2s ease;display:inline-flex;align-items:center;gap:6px;
}
.footer-links a:hover{color:#fff;padding-left:4px;}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,0.1);
  padding:22px 0;
  display:flex;align-items:center;justify-content:space-between;
  flex-wrap:wrap;gap:10px;font-size:13px;color:#64748b;
}

/* Responsive */
@media (max-width:1024px){
  .article-layout{grid-template-columns:1fr;}
  .article-sidebar{display:grid;grid-template-columns:1fr 1fr;gap:16px;}
  .sidebar-cta{grid-column:1/-1;}
  .related-grid{grid-template-columns:repeat(2,1fr);}
  .footer-grid{grid-template-columns:1fr 1fr;gap:32px;}
}
@media (max-width:768px){
  :root{--space:56px;}
  .header-inner{padding:10px 16px 10px 18px;gap:14px;}
  .main-nav{
    position:fixed;top:0;right:0;bottom:0;width:300px;
    background:var(--bg-white);flex-direction:column;
    align-items:flex-start;justify-content:flex-start;
    padding:80px 24px 24px;gap:6px;
    transform:translateX(100%);transition:transform .35s ease;
    box-shadow:-20px 0 50px rgba(15,23,42,0.15);
    border-radius:24px 0 0 24px;
    z-index:200;
  }
  .main-nav.open{transform:translateX(0);}
  .main-nav .nav-link{width:100%;font-size:17px;padding:12px 16px;}
  .nav-toggle{display:flex;}
  .nav-cta{display:none;}
  .nav-overlay{
    position:fixed;inset:0;background:rgba(15,23,42,0.5);
    z-index:199;opacity:0;pointer-events:none;
    transition:opacity .3s ease;
  }
  .nav-overlay.show{opacity:1;pointer-events:auto;}
  .article-hero{padding:52px 0 44px;border-radius:0 0 28px 28px;}
  .article-paper{padding:28px 22px;}
  .article-content-wrap{order:1;}
  .article-sidebar{display:block;order:2;}
  .faq-grid{grid-template-columns:1fr;}
  .cta-box{flex-direction:column;align-items:flex-start;padding:36px 30px;}
  .section-header{flex-direction:column;align-items:flex-start;gap:12px;}
  .section-header.center{align-items:center;}
  .footer-grid{grid-template-columns:1fr;}
}
@media (max-width:520px){
  .container{padding:0 16px;}
  .site-header{top:10px;margin-top:10px;}
  .logo{font-size:17px;}
  .logo-dot{width:28px;height:28px;}
  .related-grid{grid-template-columns:1fr;}
  .related-cover{height:180px;}
  .article-hero h1{font-size:1.5rem;}
  .article-desc{font-size:15px;}
  .cta-box{padding:28px 20px;}
  .cta-actions{width:100%;}
  .cta-actions .btn{width:100%;}
  .faq-item summary{font-size:15px;padding:16px 18px;}
  .faq-item p{padding:0 18px 16px;font-size:14px;}
  .sidebar-cta,.footer-grid{grid-template-columns:1fr;}
  .footer-bottom{flex-direction:column;text-align:center;}
}

/* roulang page: category1 */
:root {
    --primary: #4f46e5;
    --primary-dark: #4338ca;
    --primary-light: #eef2ff;
    --accent: #f59e0b;
    --accent-dark: #d97706;
    --bg: #f8fafc;
    --surface: #ffffff;
    --text: #1e293b;
    --text-weak: #64748b;
    --border: #e2e8f0;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
    --shadow-lg: 0 12px 40px rgba(15, 23, 42, 0.12);
    --header-height: 64px;
  }

  * {
    box-sizing: border-box;
  }
  html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
  }
  body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    margin: 0;
  }
  a {
    color: inherit;
    text-decoration: none;
  }
  img {
    max-width: 100%;
    display: block;
  }
  ul,
  ol {
    list-style: none;
    margin: 0;
    padding: 0;
  }
  button {
    font-family: inherit;
    cursor: pointer;
  }

  body .container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
  }

  /* ===== Header ===== */
  .site-header {
    position: sticky;
    top: 12px;
    z-index: 1000;
    width: calc(100% - 32px);
    max-width: 1200px;
    margin: 16px auto 0;
    height: var(--header-height);
    background: rgba(255, 255, 255, 0.86);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(226, 232, 240, 0.7);
    border-radius: 999px;
    box-shadow: 0 8px 30px rgba(15, 23, 42, 0.08);
    display: flex;
    align-items: center;
    transition: background .3s, box-shadow .3s;
  }
  .site-header.is-scrolled {
    background: rgba(255, 255, 255, 0.96);
    box-shadow: 0 12px 40px rgba(15, 23, 42, 0.12);
  }
  .header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    width: 100%;
  }

  .logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 20px;
    color: var(--text);
    white-space: nowrap;
  }
  .logo-dot {
    width: 10px;
    height: 10px;
    border-radius: 3px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: inline-block;
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
  }

  .main-nav {
    display: flex;
    align-items: center;
    gap: 4px;
  }
  .nav-link {
    padding: 8px 16px;
    border-radius: 999px;
    font-weight: 500;
    font-size: 15px;
    color: var(--text);
    transition: all .25s ease;
  }
  .nav-link:hover {
    background: var(--primary-light);
    color: var(--primary-dark);
  }
  .nav-link.active {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 14px rgba(79, 70, 229, 0.32);
  }

  .nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }
  .nav-toggle {
    display: none;
    width: 42px;
    height: 42px;
    border-radius: 50%;
    border: none;
    background: var(--primary-light);
    color: var(--primary-dark);
    font-size: 18px;
    align-items: center;
    justify-content: center;
    transition: all .25s;
  }
  .nav-toggle:hover {
    background: var(--primary);
    color: #fff;
  }

  /* ===== Buttons ===== */
  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 11px 24px;
    border-radius: 999px;
    font-weight: 600;
    font-size: 15px;
    line-height: 1.5;
    border: none;
    transition: all .3s ease;
    white-space: nowrap;
  }
  .btn-sm {
    padding: 7px 18px;
    font-size: 14px;
  }
  .btn-primary {
    background: var(--primary);
    color: #fff;
    box-shadow: 0 4px 16px rgba(79, 70, 229, 0.25);
  }
  .btn-primary:hover {
    background: var(--primary-dark);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(79, 70, 229, 0.34);
  }
  .btn-accent {
    background: var(--accent);
    color: #1e293b;
    box-shadow: 0 4px 16px rgba(245, 158, 11, 0.25);
  }
  .btn-accent:hover {
    background: var(--accent-dark);
    color: #fff;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(217, 119, 6, 0.3);
  }
  .btn-outline-light {
    background: rgba(255, 255, 255, 0.12);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.5);
  }
  .btn-outline-light:hover {
    background: rgba(255, 255, 255, 0.24);
    transform: translateY(-2px);
  }
  .btn:focus-visible,
  .nav-link:focus-visible,
  .nav-toggle:focus-visible,
  a:focus-visible {
    outline: 3px solid rgba(79, 70, 229, 0.4);
    outline-offset: 2px;
  }

  /* ===== Page Hero ===== */
  .page-hero {
    position: relative;
    margin-top: 24px;
    border-radius: 28px;
    overflow: hidden;
    min-height: 430px;
    display: flex;
    align-items: center;
    background-size: cover;
    background-position: center;
    color: #fff;
  }
  .page-hero::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(15, 23, 42, 0.93) 18%, rgba(79, 70, 229, 0.63) 65%, rgba(245, 158, 11, 0.28) 100%);
  }
  .hero-content {
    position: relative;
    z-index: 1;
    padding: 60px 24px;
  }
  .breadcrumb {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: rgba(255, 255, 255, 0.82);
    background: rgba(255, 255, 255, 0.1);
    border: 1px solid rgba(255, 255, 255, 0.16);
    padding: 6px 16px;
    border-radius: 999px;
    backdrop-filter: blur(6px);
  }
  .breadcrumb a {
    transition: color .3s;
  }
  .breadcrumb a:hover {
    color: #fff;
  }
  .breadcrumb .sep {
    opacity: 0.5;
  }
  .hero-title {
    font-size: 42px;
    font-weight: 800;
    line-height: 1.25;
    margin-top: 20px;
    letter-spacing: -0.02em;
  }
  .hero-desc {
    margin-top: 14px;
    font-size: 17px;
    color: rgba(255, 255, 255, 0.88);
    max-width: 640px;
  }
  .hero-actions {
    margin-top: 28px;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
  }
  .hero-stats {
    margin-top: 36px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 14px;
    max-width: 680px;
  }
  .hero-stat {
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 16px;
    padding: 16px 18px;
    backdrop-filter: blur(8px);
    text-align: center;
  }
  .stat-num {
    font-size: 24px;
    font-weight: 800;
    line-height: 1.2;
  }
  .stat-label {
    font-size: 13px;
    margin-top: 4px;
    color: rgba(255, 255, 255, 0.82);
  }

  /* ===== Section ===== */
  .section {
    padding: 80px 0;
  }
  .section-alt {
    background: linear-gradient(180deg, #f8fafc 0%, #eef2ff 100%);
  }
  .eyebrow {
    display: inline-block;
    padding: 6px 16px;
    background: var(--primary-light);
    color: var(--primary-dark);
    border-radius: 999px;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.4px;
  }
  .section-title {
    font-size: 32px;
    font-weight: 800;
    line-height: 1.3;
    margin-top: 16px;
    letter-spacing: -0.01em;
  }
  .section-desc {
    font-size: 16px;
    color: var(--text-weak);
    max-width: 660px;
    margin-top: 12px;
  }

  /* ===== Entry Cards ===== */
  .entry-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 20px;
    overflow: hidden;
    height: 100%;
    transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
    display: flex;
    flex-direction: column;
  }
  .entry-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(79, 70, 229, 0.2);
  }
  .entry-card-media {
    position: relative;
    height: 150px;
    overflow: hidden;
  }
  .entry-card-media img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .5s ease;
  }
  .entry-card:hover .entry-card-media img {
    transform: scale(1.05);
  }
  .card-tag {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(15, 23, 42, 0.72);
    color: #fff;
    padding: 5px 12px;
    border-radius: 999px;
    font-size: 12px;
    font-weight: 600;
    backdrop-filter: blur(6px);
  }
  .entry-card-body {
    padding: 22px 22px 24px;
    display: flex;
    flex-direction: column;
    flex: 1;
  }
  .entry-icon {
    width: 48px;
    height: 48px;
    background: var(--primary);
    color: #fff;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    margin-top: -46px;
    margin-bottom: 14px;
    box-shadow: 0 8px 20px rgba(79, 70, 229, 0.32);
    position: relative;
  }
  .entry-title {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
  }
  .entry-desc {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.7;
    flex: 1;
  }
  .entry-meta {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 16px;
  }

  .badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background: #f1f5f9;
    border-radius: 999px;
    padding: 5px 13px;
    font-size: 12px;
    font-weight: 600;
    color: #475569;
  }
  .badge-primary {
    background: var(--primary-light);
    color: var(--primary-dark);
  }

  /* ===== Steps ===== */
  .step-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 30px 24px;
    text-align: center;
    transition: all .3s ease;
    height: 100%;
  }
  .step-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-4px);
  }
  .step-circle {
    width: 58px;
    height: 58px;
    margin: 0 auto 18px;
    background: linear-gradient(135deg, var(--primary), #818cf8);
    color: #fff;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
    font-weight: 800;
    box-shadow: 0 10px 24px rgba(79, 70, 229, 0.3);
  }
  .step-card h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
  }
  .step-card p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.7;
  }

  /* ===== Table ===== */
  .entry-table-wrapper {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 20px;
    box-shadow: var(--shadow);
    overflow-x: auto;
  }
  .entry-table {
    width: 100%;
    border-collapse: collapse;
    min-width: 640px;
  }
  .entry-table th,
  .entry-table td {
    padding: 16px 22px;
    text-align: left;
    border-bottom: 1px solid var(--border);
  }
  .entry-table th {
    background: var(--primary-light);
    color: var(--primary-dark);
    font-weight: 700;
    font-size: 14px;
    letter-spacing: 0.3px;
  }
  .entry-table td {
    font-size: 15px;
  }
  .entry-table tbody tr:last-child td {
    border-bottom: none;
  }
  .entry-table tbody tr {
    transition: background .2s;
  }
  .entry-table tbody tr:hover {
    background: #f8fafc;
  }

  /* ===== News Cards ===== */
  .news-card {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 28px;
    height: 100%;
    display: flex;
    flex-direction: column;
    transition: all .3s ease;
  }
  .news-card:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(79, 70, 229, 0.18);
    transform: translateY(-4px);
  }
  .news-meta {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
  }
  .news-date {
    font-size: 13px;
    color: var(--text-weak);
  }
  .news-tag {
    background: var(--primary-light);
    color: var(--primary-dark);
    font-size: 12px;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 999px;
  }
  .news-title {
    font-size: 18px;
    font-weight: 700;
    line-height: 1.5;
    margin-bottom: 10px;
  }
  .news-excerpt {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.75;
    flex: 1;
  }
  .news-link {
    margin-top: 18px;
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    font-size: 14px;
    color: var(--primary);
    transition: gap .3s, color .3s;
  }
  .news-link:hover {
    gap: 12px;
    color: var(--primary-dark);
  }

  /* ===== FAQ ===== */
  .faq-list {
    max-width: 820px;
    margin: 0 auto;
  }
  .faq-item {
    background: #fff;
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 4px 24px;
    margin-bottom: 12px;
    transition: box-shadow .3s, border-color .3s;
  }
  .faq-item:hover {
    border-color: rgba(79, 70, 229, 0.25);
    box-shadow: var(--shadow);
  }
  .faq-item summary {
    cursor: pointer;
    font-weight: 700;
    font-size: 16px;
    padding: 18px 36px 18px 0;
    list-style: none;
    position: relative;
  }
  .faq-item summary::-webkit-details-marker {
    display: none;
  }
  .faq-item summary::after {
    content: '\f078';
    font-family: 'Font Awesome 6 Free';
    font-weight: 900;
    position: absolute;
    right: 4px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary);
    width: 28px;
    height: 28px;
    background: var(--primary-light);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 12px;
    transition: transform .3s, background .3s;
  }
  .faq-item[open] summary::after {
    transform: translateY(-50%) rotate(180deg);
    background: var(--primary);
    color: #fff;
  }
  .faq-answer {
    padding: 0 6px 18px;
    color: var(--text-weak);
    font-size: 15px;
    line-height: 1.8;
  }

  /* ===== CTA ===== */
  .cta-section {
    position: relative;
    padding: 80px 0;
    background-image: url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    text-align: center;
    color: #fff;
  }
  .cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(15, 23, 42, 0.84);
  }
  .cta-content {
    position: relative;
    z-index: 1;
    max-width: 720px;
  }
  .cta-content .eyebrow {
    background: rgba(255, 255, 255, 0.14);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, 0.16);
  }
  .cta-content h2 {
    font-size: 34px;
    font-weight: 800;
    margin-top: 16px;
    line-height: 1.3;
  }
  .cta-content p {
    margin-top: 14px;
    font-size: 17px;
    color: rgba(255, 255, 255, 0.88);
  }
  .cta-actions {
    margin-top: 28px;
    display: flex;
    flex-wrap: wrap;
    gap: 14px;
    justify-content: center;
  }

  /* ===== Footer ===== */
  .site-footer {
    background: #0f172a;
    color: #94a3b8;
    padding: 64px 0 24px;
  }
  .footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 40px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  }
  .footer-brand .logo {
    font-size: 20px;
    color: #fff;
  }
  .footer-brand p {
    margin-top: 16px;
    font-size: 14px;
    line-height: 1.8;
    max-width: 440px;
    color: #94a3b8;
  }
  .footer-col h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 18px;
  }
  .footer-links li+li {
    margin-top: 10px;
  }
  .footer-links a {
    font-size: 14px;
    transition: color .3s;
  }
  .footer-links a:hover {
    color: var(--accent);
  }
  .footer-bottom {
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
    padding-top: 24px;
    font-size: 13px;
    color: #64748b;
  }
  .footer-bottom a {
    color: #94a3b8;
  }

  /* ===== Responsive ===== */
  @media (max-width: 1024px) {
    .hero-title {
      font-size: 32px;
    }
    .hero-stats {
      grid-template-columns: repeat(2, 1fr);
      max-width: 520px;
    }
    .section {
      padding: 64px 0;
    }
  }
  @media (max-width: 768px) {
    .site-header {
      width: calc(100% - 20px);
      top: 8px;
      height: 60px;
      border-radius: 999px;
    }
    .logo {
      font-size: 17px;
    }
    .nav-toggle {
      display: flex;
    }
    .main-nav {
      display: none;
      position: absolute;
      top: calc(100% + 8px);
      left: 0;
      right: 0;
      background: #fff;
      border-radius: 22px;
      box-shadow: var(--shadow-lg);
      flex-direction: column;
      padding: 14px;
      gap: 6px;
      border: 1px solid var(--border);
    }
    .main-nav.open {
      display: flex;
    }
    .main-nav .nav-link {
      padding: 12px 16px;
      font-size: 16px;
      width: 100%;
    }
    .nav-cta {
      display: none;
    }
    .page-hero {
      margin-top: 14px;
      border-radius: 22px;
      min-height: 380px;
    }
    .hero-content {
      padding: 40px 20px;
    }
    .hero-title {
      font-size: 27px;
    }
    .hero-desc {
      font-size: 15px;
    }
    .section-title {
      font-size: 26px;
    }
    .footer-grid {
      grid-template-columns: 1fr;
      gap: 32px;
    }
    .cta-content h2 {
      font-size: 26px;
    }
  }
  @media (max-width: 520px) {
    .hero-stats {
      grid-template-columns: 1fr 1fr;
    }
    .hero-actions {
      flex-direction: column;
      align-items: stretch;
    }
    .hero-actions .btn {
      width: 100%;
    }
    .section {
      padding: 48px 0;
    }
    .btn {
      width: 100%;
    }
    .cta-actions {
      flex-direction: column;
    }
  }

/* roulang page: category2 */
:root {
  --brand: #0f2a4a;
  --brand-light: #1e4a76;
  --primary: #1e3a8a;
  --primary-light: #3b82f6;
  --accent: #f59e0b;
  --accent-light: #fbbf24;
  --bg-surface: #f0f4f8;
  --text-ink: #1e293b;
  --text-soft: #64748b;
  --border-line: #e2e8f0;
  --radius-md: 0.75rem;
  --radius-lg: 1.25rem;
  --shadow-card: 0 4px 24px rgba(15, 42, 74, 0.08);
  --shadow-hover: 0 12px 40px rgba(15, 42, 74, 0.14);
  --transition-base: all 0.3s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Inter", "PingFang SC", "Microsoft YaHei", "Noto Sans SC", system-ui, sans-serif;
  background-color: var(--bg-surface);
  color: var(--text-ink);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 1.5rem;
  padding-right: 1.5rem;
}

/* ===== 悬浮胶囊导航 ===== */
.site-header {
  position: fixed;
  top: 1rem;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 0 1.5rem;
}

.header-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255, 255, 255, 0.82);
  backdrop-filter: blur(18px);
  -webkit-backdrop-filter: blur(18px);
  border-radius: 60px;
  padding: 0.7rem 1.2rem 0.7rem 1.5rem;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(255, 255, 255, 0.6);
  transition: var(--transition-base);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--brand);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.logo-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #ef4444);
  box-shadow: 0 0 0 4px rgba(245, 158, 11, 0.18);
  flex-shrink: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 0.25rem;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  padding: 0.5rem 1rem;
  border-radius: 30px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-soft);
  transition: var(--transition-base);
  position: relative;
}

.nav-link:hover {
  color: var(--primary);
  background: rgba(59, 130, 246, 0.08);
}

.nav-link.active {
  color: #fff;
  background: linear-gradient(135deg, var(--primary), var(--brand));
  box-shadow: 0 4px 15px rgba(30, 58, 138, 0.3);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  background: linear-gradient(135deg, var(--accent), #f97316);
  color: #fff;
  font-weight: 600;
  font-size: 0.85rem;
  padding: 0.5rem 1.1rem;
  border-radius: 30px;
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.35);
  transition: var(--transition-base);
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(245, 158, 11, 0.45);
}

.nav-toggle {
  display: none;
  font-size: 1.2rem;
  color: var(--brand);
  padding: 0.4rem 0.6rem;
  border-radius: 12px;
}

/* ===== Hero ===== */
.page-hero {
  position: relative;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  padding: 180px 0 90px;
  text-align: center;
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 42, 74, 0.92), rgba(30, 58, 138, 0.78), rgba(15, 42, 74, 0.85));
  z-index: 1;
}

.page-hero .container {
  position: relative;
  z-index: 2;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: #fff;
  padding: 0.4rem 1.1rem;
  border-radius: 40px;
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
  backdrop-filter: blur(8px);
}

.page-hero h1 {
  font-size: 3rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
  margin-bottom: 0.8rem;
  letter-spacing: -0.02em;
}

.page-hero h1 span {
  background: linear-gradient(90deg, #fbbf24, #f59e0b, #f97316);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-hero .hero-sub {
  font-size: 1.15rem;
  color: rgba(255, 255, 255, 0.85);
  max-width: 700px;
  margin: 0 auto 1rem;
}

.page-hero .hero-desc {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.7);
  max-width: 620px;
  margin: 0 auto 2rem;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.8rem 1.6rem;
  border-radius: 40px;
  font-weight: 600;
  font-size: 0.92rem;
  transition: var(--transition-base);
}

.btn-primary {
  background: linear-gradient(135deg, var(--accent), #f97316);
  color: #fff;
  box-shadow: 0 6px 20px rgba(245, 158, 11, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 30px rgba(245, 158, 11, 0.5);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.4);
  color: #fff;
  backdrop-filter: blur(6px);
}

.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

/* ===== 板块通用 ===== */
.section {
  padding: 5rem 0;
}

.section-head {
  text-align: center;
  margin-bottom: 3rem;
  max-width: 640px;
  margin-left: auto;
  margin-right: auto;
}

.section-tag {
  display: inline-block;
  background: rgba(245, 158, 11, 0.1);
  color: #b45309;
  font-weight: 600;
  font-size: 0.8rem;
  padding: 0.3rem 0.9rem;
  border-radius: 30px;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}

.section-title {
  font-size: 2.2rem;
  font-weight: 800;
  color: var(--brand);
  line-height: 1.3;
  margin-bottom: 0.8rem;
  letter-spacing: -0.01em;
}

.section-desc {
  font-size: 0.98rem;
  color: var(--text-soft);
  line-height: 1.8;
}

/* ===== 安全要点卡片 ===== */
.secure-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}

.secure-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  box-shadow: var(--shadow-card);
  border: 1px solid rgba(226, 232, 240, 0.6);
  transition: var(--transition-base);
  position: relative;
  overflow: hidden;
}

.secure-card::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, var(--accent), #f97316);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}

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

.secure-card:hover::after {
  transform: scaleX(1);
}

.secure-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: 1.2rem;
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.08), rgba(59, 130, 246, 0.12));
  color: var(--primary);
}

.secure-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 0.5rem;
}

.secure-card p {
  font-size: 0.88rem;
  color: var(--text-soft);
  line-height: 1.7;
}

/* ===== 流程时间线 ===== */
.flow-section {
  background: linear-gradient(180deg, #f8fafc, #eef2f7);
}

.flow-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  position: relative;
}

.flow-step {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem 1.5rem;
  box-shadow: var(--shadow-card);
  border-top: 4px solid var(--primary);
  transition: var(--transition-base);
  text-align: center;
}

.flow-step:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-hover);
}

.step-num {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--brand));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 1rem;
  margin: 0 auto 1rem;
  box-shadow: 0 4px 14px rgba(30, 58, 138, 0.35);
}

.flow-step h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 0.6rem;
}

.flow-step p {
  font-size: 0.86rem;
  color: var(--text-soft);
  line-height: 1.65;
}

/* ===== 风险与应对 ===== */
.risk-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
}

.risk-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  position: relative;
}

.risk-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.risk-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.risk-item {
  background: #fff;
  border-radius: 16px;
  padding: 1.2rem 1.4rem;
  display: flex;
  gap: 1rem;
  box-shadow: var(--shadow-card);
  border-left: 4px solid var(--accent);
  transition: var(--transition-base);
}

.risk-item:hover {
  transform: translateX(6px);
  box-shadow: var(--shadow-hover);
}

.risk-icon {
  font-size: 1.3rem;
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 0.2rem;
}

.risk-item h4 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 0.3rem;
}

.risk-item p {
  font-size: 0.85rem;
  color: var(--text-soft);
  line-height: 1.6;
}

/* ===== 工具推荐 ===== */
.tool-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.tool-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow-card);
  text-align: center;
  transition: var(--transition-base);
  border: 1px solid rgba(226, 232, 240, 0.4);
}

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

.tool-icon {
  width: 72px;
  height: 72px;
  border-radius: 20px;
  background: linear-gradient(135deg, var(--brand), var(--primary));
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin: 0 auto 1.2rem;
  box-shadow: 0 8px 24px rgba(30, 58, 138, 0.3);
}

.tool-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--brand);
  margin-bottom: 0.6rem;
}

.tool-card p {
  font-size: 0.88rem;
  color: var(--text-soft);
  line-height: 1.7;
}

/* ===== FAQ 手风琴 ===== */
.faq-wrap {
  max-width: 760px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.faq-item {
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: var(--transition-base);
}

.faq-item.active {
  box-shadow: var(--shadow-hover);
}

.faq-question {
  width: 100%;
  text-align: left;
  padding: 1.2rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: var(--brand);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.faq-question i {
  color: var(--accent);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}

.faq-item.active .faq-question i {
  transform: rotate(180deg);
}

.faq-answer {
  padding: 0 1.5rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.4s ease;
}

.faq-item.active .faq-answer {
  padding: 0 1.5rem 1.3rem;
  max-height: 300px;
}

.faq-answer p {
  font-size: 0.9rem;
  color: var(--text-soft);
  line-height: 1.75;
}

/* ===== CTA ===== */
.cta-section {
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  position: relative;
  padding: 4.5rem 0;
  text-align: center;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(15, 42, 74, 0.9), rgba(30, 58, 138, 0.8));
  z-index: 1;
}

.cta-section .container {
  position: relative;
  z-index: 2;
}

.cta-title {
  font-size: 1.8rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.8rem;
}

.cta-desc {
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.8);
  max-width: 560px;
  margin: 0 auto 2rem;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--brand);
  color: rgba(255, 255, 255, 0.75);
  padding: 4rem 0 0;
  position: relative;
}

.site-footer .logo {
  color: #fff;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
}

.footer-brand p {
  font-size: 0.88rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.6);
  margin-top: 1rem;
  max-width: 360px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1rem;
}

.footer-links {
  list-style: none;
}

.footer-links li {
  margin-bottom: 0.5rem;
}

.footer-links a {
  font-size: 0.88rem;
  color: rgba(255, 255, 255, 0.6);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding: 1.5rem 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.85rem;
  color: rgba(255, 255, 255, 0.45);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .secure-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .flow-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .risk-wrap {
    grid-template-columns: 1fr;
  }
  .page-hero h1 {
    font-size: 2.5rem;
  }
}

@media (max-width: 768px) {
  .site-header {
    top: 0.8rem;
    padding: 0 1rem;
  }
  .header-inner {
    flex-wrap: wrap;
  }
  .main-nav {
    display: none;
    width: 100%;
    flex-direction: column;
    padding: 0.5rem 0;
    gap: 0.2rem;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 20px;
    margin-top: 0.5rem;
  }
  .main-nav.open {
    display: flex;
  }
  .nav-cta {
    display: none;
  }
  .nav-toggle {
    display: block;
  }
  .page-hero {
    padding: 140px 0 60px;
  }
  .page-hero h1 {
    font-size: 2rem;
  }
  .page-hero .hero-sub {
    font-size: 1rem;
  }
  .section {
    padding: 3.5rem 0;
  }
  .section-title {
    font-size: 1.7rem;
  }
  .tool-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 520px) {
  .secure-grid {
    grid-template-columns: 1fr;
  }
  .flow-grid {
    grid-template-columns: 1fr;
  }
  .page-hero h1 {
    font-size: 1.6rem;
  }
  .hero-actions {
    flex-direction: column;
  }
  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }
  .container {
    padding-left: 1rem;
    padding-right: 1rem;
  }
}