/* roulang page: index */
:root {
  --primary: #0c1929;
  --primary-dark: #081020;
  --accent: #c9a05c;
  --accent-dark: #a98443;
  --accent-soft: #f3ead9;
  --bg: #f6f3ee;
  --bg-white: #ffffff;
  --text: #1f2a37;
  --text-muted: #6b7a8c;
  --border: #e5dfd5;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow-sm: 0 4px 16px rgba(12,25,41,0.06);
  --shadow: 0 14px 40px rgba(12,25,41,0.10);
  --shadow-lg: 0 24px 60px rgba(12,25,41,0.16);
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Hiragino Sans GB","Microsoft YaHei","Source Han Sans SC","Helvetica Neue",Arial,sans-serif;color:var(--text);background:var(--bg);line-height:1.75;-webkit-font-smoothing:antialiased}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:color var(--transition)}
ul,ol{list-style:none}
button{font-family:inherit;border:none;background:none;cursor:pointer}
.container{max-width:1200px;margin:0 auto;padding:0 24px}
.section{padding:96px 0}
.section-alt{background:var(--bg-white)}
.section-head{text-align:center;max-width:660px;margin:0 auto 52px}
.section-head .eyebrow{display:inline-block;font-size:.8rem;font-weight:700;letter-spacing:.14em;text-transform:uppercase;color:var(--accent);background:var(--accent-soft);padding:6px 18px;border-radius:100px;margin-bottom:16px}
.section-head h2{font-size:2.25rem;font-weight:800;color:var(--primary);line-height:1.25;letter-spacing:-.02em}
.section-head p{color:var(--text-muted);font-size:1.05rem;margin-top:14px}
.grid-x{display:flex;flex-wrap:wrap}
.grid-margin-x{margin-left:-12px;margin-right:-12px}
.grid-margin-x>.cell{padding-left:12px;padding-right:12px}
.cell{flex:1 0 0%}
.small-12{flex:0 0 100%;max-width:100%}
.medium-6{flex:0 0 50%;max-width:50%}
.large-4{flex:0 0 33.3333%;max-width:33.3333%}
.large-8{flex:0 0 66.6667%;max-width:66.6667%}
.large-3{flex:0 0 25%;max-width:25%}
.btn{display:inline-flex;align-items:center;gap:8px;padding:14px 32px;border-radius:60px;font-weight:600;font-size:1rem;line-height:1;transition:all var(--transition)}
.btn i{font-size:.9rem}
.btn-accent{background:var(--accent);color:#fff;box-shadow:0 8px 24px rgba(201,160,92,.4)}
.btn-accent:hover{background:var(--accent-dark);transform:translateY(-2px);box-shadow:0 12px 30px rgba(201,160,92,.45)}
.btn-dark{background:var(--primary);color:#fff;box-shadow:0 8px 24px rgba(12,25,41,.3)}
.btn-dark:hover{background:var(--primary-dark);transform:translateY(-2px)}
.btn-ghost{background:transparent;color:#fff;border:1.5px solid rgba(255,255,255,.5);backdrop-filter:blur(4px)}
.btn-ghost:hover{border-color:#fff;background:rgba(255,255,255,.1);transform:translateY(-2px)}
.btn-block{display:flex;width:100%;justify-content:center}
.tag{display:inline-flex;align-items:center;background:var(--accent-soft);color:var(--accent-dark);font-size:.8rem;font-weight:600;padding:4px 14px;border-radius:100px;letter-spacing:.02em}
/* Header / Nav */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.88);backdrop-filter:blur(16px);-webkit-backdrop-filter:blur(16px);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:76px}
.logo{font-size:1.6rem;font-weight:800;color:var(--primary);letter-spacing:-.02em;display:flex;align-items:center;gap:2px}
.logo span{color:var(--accent)}
.logo:hover{opacity:.9}
.main-nav{display:flex;align-items:center;gap:36px}
.main-nav a{font-weight:500;font-size:.95rem;color:var(--text-muted);position:relative;padding:6px 0}
.main-nav a::after{content:"";position:absolute;left:0;bottom:-2px;width:0;height:2px;background:var(--accent);border-radius:2px;transition:width var(--transition)}
.main-nav a:hover{color:var(--primary)}
.main-nav a:hover::after,.main-nav a.active::after{width:100%}
.main-nav a.active{color:var(--primary);font-weight:600}
.menu-toggle{display:none;font-size:1.4rem;color:var(--primary);padding:8px}
/* Hero */
.hero{position:relative;min-height:680px;display:flex;align-items:center;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat}
.hero-overlay{position:absolute;inset:0;background:linear-gradient(115deg,rgba(8,16,32,.82) 40%,rgba(8,16,32,.45) 75%,rgba(8,16,32,.30) 100%)}
.hero-content{position:relative;z-index:2;padding:80px 24px;max-width:1200px;width:100%;margin:0 auto}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(201,160,92,.15);border:1px solid rgba(201,160,92,.4);color:#e0c689;font-size:.85rem;font-weight:600;padding:8px 20px;border-radius:100px;margin-bottom:24px}
.hero-badge i{font-size:.75rem}
.hero-content h1{font-size:3.5rem;font-weight:800;color:#fff;line-height:1.15;letter-spacing:-.02em;max-width:680px}
.hero-content h1 em{font-style:normal;color:var(--accent)}
.hero-content p{color:rgba(255,255,255,.85);font-size:1.15rem;max-width:560px;margin-top:20px}
.hero-actions{display:flex;gap:16px;margin-top:36px;flex-wrap:wrap}
.hero-stats{display:flex;gap:0;margin-top:56px;flex-wrap:wrap;background:rgba(255,255,255,.1);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius);padding:28px 8px;backdrop-filter:blur(8px)}
.stat-item{flex:1;text-align:center;padding:8px 20px;border-right:1px solid rgba(255,255,255,.15)}
.stat-item:last-child{border-right:none}
.stat-item strong{font-size:2.1rem;font-weight:800;color:#fff;display:block;line-height:1.2}
.stat-item span{color:rgba(255,255,255,.65);font-size:.9rem;display:block;margin-top:4px}
/* About */
.about-grid{display:flex;gap:24px;flex-wrap:wrap}
.about-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);padding:36px 28px;flex:1;min-width:260px;transition:all var(--transition)}
.about-card:hover{transform:translateY(-6px);box-shadow:var(--shadow)}
.about-card .icon-wrap{width:56px;height:56px;border-radius:16px;background:var(--accent-soft);color:var(--accent-dark);display:flex;align-items:center;justify-content:center;font-size:1.4rem;margin-bottom:20px}
.about-card h3{font-size:1.2rem;font-weight:700;color:var(--primary);margin-bottom:10px}
.about-card p{color:var(--text-muted);font-size:.95rem}
/* Category */
.category-section{background:var(--bg-white)}
.category-card{position:relative;border-radius:var(--radius-lg,22px);overflow:hidden;height:340px;display:block;box-shadow:var(--shadow-sm);transition:box-shadow var(--transition),transform var(--transition)}
.category-card:hover{box-shadow:var(--shadow);transform:translateY(-4px)}
.category-card .card-img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.category-card:hover .card-img{transform:scale(1.05)}
.category-card .card-overlay{position:absolute;inset:0;background:linear-gradient(180deg,rgba(8,16,32,0) 30%,rgba(8,16,32,.85) 100%)}
.category-card .card-body{position:absolute;left:0;right:0;bottom:0;padding:30px;color:#fff}
.category-card .card-body h3{font-size:1.45rem;font-weight:700;margin-bottom:6px}
.category-card .card-body p{font-size:.92rem;color:rgba(255,255,255,.8);margin-bottom:12px}
.category-card .card-link{display:inline-flex;align-items:center;gap:6px;font-size:.9rem;font-weight:600;color:var(--accent);background:rgba(255,255,255,.15);padding:7px 18px;border-radius:100px;backdrop-filter:blur(4px)}
/* Stats band */
.stats-band{background:var(--primary);padding:80px 0;position:relative;overflow:hidden}
.stats-band::before{content:"";position:absolute;inset:0;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;opacity:.18;transform:scale(1.1)}
.stats-band .container{position:relative;z-index:2}
.stats-band .section-head h2{color:#fff}
.stats-band .section-head p{color:rgba(255,255,255,.7)}
.stats-row{display:flex;flex-wrap:wrap;gap:28px;justify-content:center}
.stats-item{flex:1;min-width:180px;text-align:center;background:rgba(255,255,255,.08);border:1px solid rgba(255,255,255,.12);border-radius:var(--radius);padding:36px 16px;transition:background var(--transition)}
.stats-item:hover{background:rgba(255,255,255,.14)}
.stats-item strong{font-size:2.4rem;font-weight:800;color:var(--accent);display:block}
.stats-item span{color:rgba(255,255,255,.75);font-size:.95rem;margin-top:8px}
/* News */
.news-head{display:flex;align-items:flex-end;justify-content:space-between;margin-bottom:40px;flex-wrap:wrap;gap:16px}
.news-head .section-head{margin:0;text-align:left}
.news-head .eyebrow{margin-bottom:10px}
.news-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:24px}
.news-card{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);padding:28px;display:flex;flex-direction:column;transition:all var(--transition)}
.news-card:hover{box-shadow:var(--shadow);transform:translateY(-4px);border-color:transparent}
.news-card-top{display:flex;justify-content:space-between;align-items:center;margin-bottom:16px;gap:8px;flex-wrap:wrap}
.news-card time{font-size:.82rem;color:var(--text-muted)}
.news-card h3{font-size:1.15rem;font-weight:700;color:var(--primary);line-height:1.45;margin-bottom:10px}
.news-card p{color:var(--text-muted);font-size:.93rem;flex:1}
.news-more{margin-top:16px;display:inline-flex;align-items:center;gap:8px;font-size:.9rem;font-weight:600;color:var(--accent-dark)}
.news-more i{transition:transform var(--transition)}
.news-card:hover .news-more i{transform:translateX(4px)}
.empty-state{grid-column:1/-1;text-align:center;padding:60px 0;color:var(--text-muted);font-size:1.05rem;background:var(--bg-white);border-radius:var(--radius);border:1px dashed var(--border)}
/* Process */
.process-section{background:var(--bg-white)}
.process-row{display:flex;gap:28px;flex-wrap:wrap;counter-reset:step}
.process-card{flex:1;min-width:230px;background:var(--bg);border:1px solid var(--border);border-radius:var(--radius);padding:40px 28px;text-align:center;position:relative;transition:all var(--transition)}
.process-card:hover{transform:translateY(-4px);box-shadow:var(--shadow)}
.process-card .step-num{width:48px;height:48px;border-radius:50%;background:var(--primary);color:var(--accent);font-weight:800;font-size:1.2rem;display:flex;align-items:center;justify-content:center;margin:0 auto 18px}
.process-card h3{font-size:1.1rem;font-weight:700;color:var(--primary);margin-bottom:8px}
.process-card p{color:var(--text-muted);font-size:.9rem}
/* Feature */
.feature-card{display:flex;gap:20px;align-items:center;background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius);padding:20px;transition:box-shadow var(--transition)}
.feature-card:hover{box-shadow:var(--shadow)}
.feature-card img{width:100px;height:100px;object-fit:cover;border-radius:var(--radius-sm);flex-shrink:0}
.feature-card h3{font-size:1rem;font-weight:700;color:var(--primary);margin-bottom:4px}
.feature-card p{color:var(--text-muted);font-size:.88rem}
/* FAQ */
.faq-list{max-width:820px;margin:0 auto}
.faq-item{background:var(--bg-white);border:1px solid var(--border);border-radius:var(--radius-sm);margin-bottom:14px;overflow:hidden;transition:box-shadow var(--transition)}
.faq-item:hover{box-shadow:var(--shadow-sm)}
.faq-item summary{display:flex;justify-content:space-between;align-items:center;padding:22px 28px;font-weight:600;color:var(--primary);cursor:pointer;font-size:1.02rem;list-style:none}
.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:.8rem;color:var(--accent);transition:transform var(--transition)}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item .faq-body{padding:0 28px 24px;color:var(--text-muted);font-size:.95rem;border-top:1px solid var(--border);padding-top:16px;margin-top:0}
/* CTA */
.cta-section{position:relative;padding:100px 0;background:url('/assets/images/backpic/back-3.png') center/cover no-repeat;text-align:center}
.cta-section .cta-overlay{position:absolute;inset:0;background:linear-gradient(90deg,rgba(8,16,32,.88),rgba(8,16,32,.72))}
.cta-section .container{position:relative;z-index:2}
.cta-section h2{font-size:2.5rem;font-weight:800;color:#fff;max-width:640px;margin:0 auto;line-height:1.25}
.cta-section p{color:rgba(255,255,255,.8);max-width:520px;margin:16px auto 36px;font-size:1.05rem}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
/* Footer */
.site-footer{background:var(--primary-dark);color:rgba(255,255,255,.7);padding:64px 0 28px}
.footer-inner{display:flex;justify-content:space-between;gap:40px;flex-wrap:wrap;padding-bottom:40px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-brand .logo{color:#fff;font-size:1.5rem;margin-bottom:12px;display:inline-block}
.footer-brand p{max-width:320px;font-size:.9rem;line-height:1.7}
.footer-links h4{color:#fff;font-size:1rem;font-weight:700;margin-bottom:16px}
.footer-links ul li{margin-bottom:10px}
.footer-links a{color:rgba(255,255,255,.6);font-size:.9rem}
.footer-links a:hover{color:var(--accent)}
.footer-bottom{display:flex;justify-content:space-between;align-items:center;padding-top:24px;font-size:.85rem;color:rgba(255,255,255,.45);flex-wrap:wrap;gap:8px}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:var(--accent)}
/* Responsive */
@media (max-width:1024px){
  .hero-content h1{font-size:2.8rem}
  .stats-item strong{font-size:2rem}
}
@media (max-width:768px){
  .section{padding:64px 0}
  .menu-toggle{display:inline-flex;align-items:center;justify-content:center}
  .main-nav{position:absolute;top:76px;left:0;right:0;background:#fff;flex-direction:column;align-items:flex-start;padding:16px 24px 24px;gap:0;border-bottom:1px solid var(--border);box-shadow:var(--shadow);display:none}
  .main-nav.open{display:flex}
  .main-nav a{display:block;width:100%;padding:14px 0;border-bottom:1px solid var(--border)}
  .main-nav a:last-child{border-bottom:none}
  .main-nav a::after{left:0}
  .hero{min-height:560px}
  .hero-content h1{font-size:2.2rem}
  .hero-content p{font-size:1rem}
  .hero-stats{flex-direction:column;gap:16px;padding:24px 16px}
  .stat-item{border-right:none;border-bottom:1px solid rgba(255,255,255,.1);padding:10px 0}
  .stat-item:last-child{border-bottom:none}
  .news-grid{grid-template-columns:1fr}
  .section-head h2{font-size:1.75rem}
  .medium-6,.large-4,.large-8,.large-3{flex:0 0 100%;max-width:100%}
  .cta-section h2{font-size:1.9rem}
  .footer-inner{flex-direction:column;gap:30px}
}
@media (max-width:520px){
  .container{padding:0 16px}
  .hero-content h1{font-size:1.85rem}
  .hero-actions{flex-direction:column;width:100%}
  .hero-actions .btn{width:100%;justify-content:center}
  .stats-item{min-width:140px}
  .news-card{padding:20px}
  .faq-item summary{font-size:.95rem;padding:18px 20px}
  .faq-item .faq-body{padding:0 20px 20px}
  .process-card{min-width:150px;padding:28px 16px}
}

/* roulang page: category1 */
:root {
    --primary: #0d1b2a;
    --primary-light: #1b3a5c;
    --accent: #e8b04b;
    --accent-hover: #d19a32;
    --bg: #f4f6fa;
    --surface: #ffffff;
    --text: #17222f;
    --text-light: #5a6b7c;
    --border: #e3e9f1;
    --radius: 16px;
    --radius-sm: 10px;
    --shadow: 0 8px 24px rgba(13, 27, 42, 0.07);
    --shadow-lg: 0 20px 48px rgba(13, 27, 42, 0.12);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", "Helvetica Neue", Arial, sans-serif;
  }

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

  html {
    scroll-behavior: smooth;
  }

  body {
    font-family: var(--font-family);
    background: var(--bg);
    color: var(--text);
    line-height: 1.7;
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
  }

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

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

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

  .site-header {
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 100;
  }

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

  .logo {
    font-size: 24px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.5px;
    display: inline-flex;
    align-items: baseline;
  }

  .logo span {
    color: var(--accent);
    font-weight: 400;
    margin-left: 2px;
  }

  .menu-toggle {
    display: none;
    background: none;
    border: none;
    font-size: 22px;
    color: var(--primary);
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
  }

  .menu-toggle:hover {
    background: rgba(13, 27, 42, 0.06);
  }

  .main-nav {
    display: flex;
    gap: 8px;
    align-items: center;
  }

  .main-nav a {
    font-size: 15px;
    font-weight: 500;
    color: var(--text-light);
    padding: 10px 18px;
    border-radius: 999px;
    position: relative;
    transition: var(--transition);
  }

  .main-nav a:hover {
    color: var(--primary);
    background: rgba(13, 27, 42, 0.05);
  }

  .main-nav a.active {
    color: var(--primary);
    background: rgba(232, 176, 75, 0.16);
  }

  .main-nav a.active::after {
    content: "";
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 18px;
    height: 3px;
    border-radius: 4px;
    background: var(--accent);
  }

  .page-hero {
    position: relative;
    padding: 110px 0 120px;
    background-image: linear-gradient(135deg, rgba(13, 27, 42, 0.88), rgba(27, 58, 92, 0.72)), url('/assets/images/backpic/back-1.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    color: #fff;
    text-align: center;
  }

  .page-hero .hero-tag {
    display: inline-block;
    background: rgba(232, 176, 75, 0.18);
    border: 1px solid rgba(232, 176, 75, 0.4);
    color: #f4d78b;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 2px;
    padding: 6px 18px;
    border-radius: 999px;
    margin-bottom: 22px;
    text-transform: uppercase;
  }

  .page-hero h1 {
    font-size: 52px;
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -1px;
    margin-bottom: 18px;
  }

  .page-hero p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.85);
    max-width: 680px;
    margin: 0 auto 34px;
    line-height: 1.8;
  }

  .hero-btns {
    display: flex;
    justify-content: center;
    gap: 14px;
    flex-wrap: wrap;
  }

  .btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 15px;
    font-weight: 600;
    padding: 13px 30px;
    border-radius: 999px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    line-height: 1.4;
  }

  .btn-primary {
    background: var(--accent);
    color: var(--primary);
    box-shadow: 0 6px 18px rgba(232, 176, 75, 0.35);
  }

  .btn-primary:hover {
    background: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(232, 176, 75, 0.42);
  }

  .btn-outline {
    background: transparent;
    color: #fff;
    border: 1.5px solid rgba(255, 255, 255, 0.6);
  }

  .btn-outline:hover {
    background: rgba(255, 255, 255, 0.12);
    border-color: #fff;
    transform: translateY(-2px);
  }

  .section {
    padding: 88px 0;
  }

  .section-alt {
    background: var(--surface);
  }

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

  .section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    color: var(--accent-hover);
    letter-spacing: 2px;
    text-transform: uppercase;
    background: rgba(232, 176, 75, 0.1);
    padding: 5px 16px;
    border-radius: 999px;
    margin-bottom: 14px;
  }

  .section-title {
    font-size: 36px;
    font-weight: 800;
    letter-spacing: -0.5px;
    line-height: 1.25;
    color: var(--primary);
    margin-bottom: 14px;
  }

  .section-desc {
    font-size: 16px;
    color: var(--text-light);
    line-height: 1.8;
  }

  .split-wrap {
    display: flex;
    align-items: center;
    gap: 60px;
  }

  .split-media {
    flex: 0 0 48%;
    border-radius: 20px;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    position: relative;
  }

  .split-media img {
    width: 100%;
    height: 380px;
    object-fit: cover;
  }

  .split-media::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(13, 27, 42, 0.15), transparent);
  }

  .split-content {
    flex: 1;
  }

  .split-content .section-tag {
    margin-bottom: 12px;
  }

  .split-content h2 {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    line-height: 1.3;
    margin-bottom: 18px;
  }

  .split-content p {
    color: var(--text-light);
    margin-bottom: 16px;
    line-height: 1.85;
  }

  .split-features {
    list-style: none;
    margin: 20px 0 0;
  }

  .split-features li {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    font-size: 15px;
    color: var(--text);
    margin-bottom: 14px;
  }

  .split-features i {
    color: var(--accent);
    margin-top: 4px;
    font-size: 16px;
  }

  .cards-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    margin-top: 20px;
  }

  .card {
    background: var(--surface);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    border: 1px solid var(--border);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
  }

  .card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(232, 176, 75, 0.4);
  }

  .card-image {
    position: relative;
    overflow: hidden;
    height: 200px;
  }

  .card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
  }

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

  .card-image .badge {
    position: absolute;
    top: 14px;
    left: 14px;
    background: rgba(13, 27, 42, 0.8);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    padding: 5px 14px;
    border-radius: 999px;
    backdrop-filter: blur(4px);
  }

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

  .card-body h3 {
    font-size: 20px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
    line-height: 1.4;
  }

  .card-body p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.75;
    margin-bottom: 18px;
    flex: 1;
  }

  .card-meta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 13px;
    color: var(--text-light);
    border-top: 1px solid var(--border);
    padding-top: 14px;
  }

  .card-link {
    color: var(--primary);
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 6px;
  }

  .card-link:hover {
    color: var(--accent-hover);
  }

  .stats-section {
    background: linear-gradient(135deg, rgba(13, 27, 42, 0.92), rgba(27, 58, 92, 0.85)), url('/assets/images/backpic/back-2.png');
    background-size: cover;
    background-position: center;
    color: #fff;
    padding: 88px 0;
  }

  .stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 30px;
    margin-bottom: 52px;
  }

  .stat-item {
    text-align: center;
    padding: 24px 16px;
    background: rgba(255, 255, 255, 0.08);
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.12);
    backdrop-filter: blur(4px);
  }

  .stat-num {
    font-size: 38px;
    font-weight: 800;
    color: var(--accent);
    line-height: 1.2;
    margin-bottom: 6px;
  }

  .stat-label {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.78);
  }

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

  .step-item {
    text-align: center;
    padding: 30px 24px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: var(--radius);
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: var(--transition);
  }

  .step-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-4px);
  }

  .step-num {
    width: 52px;
    height: 52px;
    line-height: 52px;
    background: var(--accent);
    color: var(--primary);
    border-radius: 50%;
    font-size: 20px;
    font-weight: 800;
    margin: 0 auto 18px;
    box-shadow: 0 8px 20px rgba(232, 176, 75, 0.35);
  }

  .step-item h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
  }

  .step-item p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.7;
  }

  .guide-layout {
    display: grid;
    grid-template-columns: 1fr 340px;
    gap: 36px;
    align-items: start;
  }

  .guide-list {
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    overflow: hidden;
  }

  .guide-list-item {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 22px 26px;
    border-bottom: 1px solid var(--border);
    transition: var(--transition);
    cursor: pointer;
  }

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

  .guide-list-item:hover {
    background: rgba(232, 176, 75, 0.06);
    padding-left: 32px;
  }

  .guide-list-icon {
    width: 46px;
    height: 46px;
    flex-shrink: 0;
    background: var(--primary);
    color: var(--accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 18px;
  }

  .guide-list-content {
    flex: 1;
  }

  .guide-list-content h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin-bottom: 2px;
  }

  .guide-list-content span {
    font-size: 13px;
    color: var(--text-light);
  }

  .guide-list-item .arrow {
    color: var(--text-light);
    font-size: 15px;
    transition: var(--transition);
  }

  .guide-list-item:hover .arrow {
    color: var(--accent);
    transform: translateX(4px);
  }

  .side-card {
    background: var(--primary);
    border-radius: var(--radius);
    overflow: hidden;
    color: #fff;
    box-shadow: var(--shadow-lg);
  }

  .side-card img {
    width: 100%;
    height: 180px;
    object-fit: cover;
  }

  .side-card-body {
    padding: 24px;
  }

  .side-card-body h3 {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 8px;
  }

  .side-card-body p {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
    line-height: 1.7;
    margin-bottom: 16px;
  }

  .side-card-body .btn {
    width: 100%;
    font-size: 14px;
    padding: 10px 20px;
  }

  .faq-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
    margin-top: 20px;
  }

  .faq-item {
    background: var(--surface);
    border-radius: var(--radius);
    border: 1px solid var(--border);
    box-shadow: var(--shadow);
    padding: 26px 28px;
    transition: var(--transition);
  }

  .faq-item:hover {
    box-shadow: var(--shadow-lg);
    border-color: rgba(232, 176, 75, 0.35);
  }

  .faq-item h3 {
    font-size: 17px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 10px;
  }

  .faq-item h3 i {
    color: var(--accent);
    font-size: 16px;
  }

  .faq-item p {
    font-size: 15px;
    color: var(--text-light);
    line-height: 1.75;
  }

  .cta-section {
    position: relative;
    padding: 90px 0;
    background: linear-gradient(135deg, rgba(13, 27, 42, 0.9), rgba(27, 58, 92, 0.82)), url('/assets/images/backpic/back-3.png');
    background-size: cover;
    background-position: center;
    text-align: center;
    color: #fff;
  }

  .cta-section h2 {
    font-size: 36px;
    font-weight: 800;
    margin-bottom: 16px;
  }

  .cta-section p {
    font-size: 16px;
    color: rgba(255, 255, 255, 0.82);
    max-width: 600px;
    margin: 0 auto 30px;
  }

  .cta-section .btn-primary {
    font-size: 16px;
    padding: 15px 40px;
  }

  .site-footer {
    background: var(--primary);
    color: rgba(255, 255, 255, 0.8);
    padding: 60px 0 0;
  }

  .footer-inner {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr;
    gap: 50px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
  }

  .footer-brand .logo {
    color: #fff;
    margin-bottom: 14px;
    display: inline-block;
  }

  .footer-brand .logo span {
    color: var(--accent);
  }

  .footer-brand p {
    font-size: 14px;
    line-height: 1.8;
    color: rgba(255, 255, 255, 0.6);
    max-width: 360px;
  }

  .footer-links h4 {
    font-size: 15px;
    font-weight: 700;
    color: #fff;
    margin-bottom: 18px;
  }

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

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

  .footer-links a {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.6);
    transition: var(--transition);
  }

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

  .footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    padding: 22px 0;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.5);
  }

  .footer-bottom a {
    color: rgba(255, 255, 255, 0.65);
  }

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

  @media screen and (max-width: 1024px) {
    .page-hero h1 {
      font-size: 42px;
    }

    .split-wrap {
      flex-direction: column;
      gap: 36px;
    }

    .split-media {
      flex: 1;
      width: 100%;
    }

    .cards-grid {
      gap: 20px;
    }

    .guide-layout {
      grid-template-columns: 1fr;
    }

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

  @media screen and (max-width: 768px) {
    .menu-toggle {
      display: block;
    }

    .main-nav {
      display: none;
      position: absolute;
      top: 72px;
      left: 0;
      right: 0;
      background: var(--surface);
      border-bottom: 1px solid var(--border);
      box-shadow: var(--shadow);
      padding: 16px 24px;
      gap: 6px;
      flex-direction: column;
      align-items: stretch;
    }

    .main-nav.open {
      display: flex;
    }

    .main-nav a {
      display: block;
      padding: 14px 18px;
      border-radius: 12px;
      font-size: 16px;
    }

    .main-nav a.active::after {
      display: none;
    }

    .page-hero {
      padding: 80px 0 90px;
    }

    .page-hero h1 {
      font-size: 34px;
    }

    .section {
      padding: 64px 0;
    }

    .section-title {
      font-size: 28px;
    }

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

    .stats-grid {
      grid-template-columns: 1fr 1fr;
      gap: 16px;
    }

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

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

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

    .footer-bottom {
      flex-direction: column;
      align-items: flex-start;
    }
  }

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

    .page-hero h1 {
      font-size: 28px;
    }

    .page-hero p {
      font-size: 15px;
    }

    .hero-btns {
      flex-direction: column;
      align-items: center;
    }

    .btn {
      width: 100%;
      max-width: 280px;
    }

    .split-media img {
      height: 240px;
    }

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

    .stat-num {
      font-size: 28px;
    }

    .guide-list-item {
      flex-wrap: wrap;
      padding: 18px;
    }

    .cta-section h2 {
      font-size: 26px;
    }
  }

/* roulang page: article */
:root {
    --primary: #14213d;
    --primary-light: #2b3d63;
    --accent: #fca311;
    --accent-light: #ffc75f;
    --accent-dark: #e08900;
    --bg: #f8f9fc;
    --bg-alt: #eef1f6;
    --text: #1f2937;
    --text-weak: #6b7b8d;
    --border: #e5e9ef;
    --white: #ffffff;
    --radius: 16px;
    --radius-sm: 10px;
    --radius-lg: 24px;
    --shadow: 0 4px 24px rgba(20, 33, 61, 0.06);
    --shadow-lg: 0 12px 48px rgba(20, 33, 61, 0.10);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --font-family: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", -apple-system, BlinkMacSystemFont, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
    margin: 0;
    font-family: var(--font-family);
    font-size: 16px;
    line-height: 1.75;
    color: var(--text);
    background: var(--bg);
}
img { max-width: 100%; height: auto; display: block; }
a {
    color: var(--primary);
    text-decoration: none;
    transition: color var(--transition);
}
a:hover { color: var(--accent); }
ul { list-style: none; margin: 0; padding: 0; }
button, input, select, textarea { font: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 28px;
    border-radius: 50px;
    font-weight: 600;
    font-size: 15px;
    line-height: 1.5;
    border: 2px solid transparent;
    cursor: pointer;
    transition: all var(--transition);
    text-align: center;
}
.btn-primary { background: var(--primary); color: var(--white); }
.btn-primary:hover { background: var(--primary-light); color: var(--white); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(20, 33, 61, 0.25); }
.btn-accent { background: var(--accent); color: var(--primary); }
.btn-accent:hover { background: var(--accent-light); color: var(--primary); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(252, 163, 17, 0.4); }
.btn-outline { background: transparent; border-color: var(--primary); color: var(--primary); }
.btn-outline:hover { background: var(--primary); color: var(--white); border-color: var(--primary); }
.btn-outline-light { background: transparent; border-color: rgba(255, 255, 255, 0.8); color: var(--white); }
.btn-outline-light:hover { background: var(--white); color: var(--primary); border-color: var(--white); }
.btn-block { width: 100%; }
.btn-lg { padding: 16px 40px; font-size: 17px; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255, 255, 255, 0.92);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
}
.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
}
.logo {
    font-size: 28px;
    font-weight: 800;
    color: var(--primary);
    letter-spacing: -0.5px;
    line-height: 1.2;
}
.logo span { color: var(--accent); }
.main-nav { display: flex; align-items: center; gap: 40px; }
.main-nav a {
    position: relative;
    color: var(--text);
    font-size: 15px;
    font-weight: 500;
    padding: 8px 0;
    letter-spacing: 0.3px;
    background: none;
}
.main-nav a::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 100%;
    height: 2px;
    background: var(--accent);
    border-radius: 2px;
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 0.35s ease;
}
.main-nav a:hover { color: var(--primary); }
.main-nav a:hover::after,
.main-nav a.active::after { transform: scaleX(1); }
.main-nav a.active { color: var(--primary); font-weight: 600; }
.nav-toggle {
    display: none;
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
}
.nav-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--primary);
    margin: 5px 0;
    transition: 0.3s;
    border-radius: 2px;
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.article-hero {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 100px 0 84px;
    color: var(--white);
}
.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(20, 33, 61, 0.9), rgba(20, 33, 61, 0.72) 50%, rgba(20, 33, 61, 0.86));
}
.hero-content { position: relative; z-index: 2; max-width: 920px; }
.hero-breadcrumb {
    font-size: 14px;
    color: rgba(255, 255, 255, 0.75);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 8px;
}
.hero-breadcrumb a { color: var(--accent-light); }
.hero-breadcrumb a:hover { color: var(--accent); }
.article-hero h1 {
    font-size: 40px;
    line-height: 1.25;
    font-weight: 800;
    margin: 0 0 16px;
    letter-spacing: -0.5px;
}
.hero-desc {
    font-size: 17px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.85);
    margin: 0 0 24px;
    max-width: 720px;
}
.hero-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    flex-wrap: wrap;
}
.hero-meta .badge {
    background: var(--accent);
    color: var(--primary);
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 20px;
    font-size: 13px;
}
.hero-meta .meta-item {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.8);
    font-size: 14px;
}

.article-main { padding: 56px 0 64px; }
.article-body {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 40px 48px;
    border: 1px solid var(--border);
}
.article-body h2 {
    font-size: 26px;
    margin: 32px 0 16px;
    color: var(--primary);
    padding-bottom: 10px;
    border-bottom: 2px solid var(--bg-alt);
    font-weight: 700;
}
.article-body h3 {
    font-size: 20px;
    margin: 24px 0 12px;
    color: var(--primary);
    font-weight: 700;
}
.article-body p { margin: 0 0 20px; }
.article-body ul { margin: 0 0 24px; padding-left: 0; list-style: none; }
.article-body ul li {
    position: relative;
    padding-left: 24px;
    margin-bottom: 10px;
}
.article-body ul li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 12px;
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 2px;
}
.article-body ol { margin: 0 0 24px; padding-left: 24px; }
.article-body ol li { margin-bottom: 8px; }
.article-body blockquote {
    margin: 24px 0;
    padding: 16px 24px;
    border-left: 4px solid var(--accent);
    background: var(--bg);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    color: var(--text-weak);
    font-style: italic;
}
.article-body img { border-radius: var(--radius-sm); margin: 24px 0; }
.article-body a { color: var(--accent-dark); border-bottom: 1px solid; }
.article-body a:hover { color: var(--accent); }
.article-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 24px 0;
    font-size: 14px;
}
.article-body table th,
.article-body table td {
    border: 1px solid var(--border);
    padding: 12px 16px;
    text-align: left;
}
.article-body table th {
    background: var(--bg-alt);
    font-weight: 700;
    color: var(--primary);
}
.article-body table tr:nth-child(even) { background: #fafbfc; }

.article-tags {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 32px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
}
.tag-label { font-weight: 600; color: var(--text-weak); margin-right: 4px; font-size: 14px; }
.tag {
    display: inline-block;
    padding: 4px 16px;
    background: var(--bg-alt);
    color: var(--text);
    border-radius: 20px;
    font-size: 13px;
    transition: all var(--transition);
    border: 1px solid transparent;
}
.tag:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    transform: translateY(-2px);
}

.article-share {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-top: 28px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
    color: var(--text-weak);
    font-size: 14px;
}
.article-share a {
    width: 36px;
    height: 36px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--bg-alt);
    color: var(--text);
    transition: all var(--transition);
}
.article-share a:hover {
    background: var(--primary);
    color: var(--white);
    transform: translateY(-3px);
}

.article-sidebar { position: sticky; top: 96px; }
.sidebar-card {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 24px;
    margin-bottom: 24px;
}
.sidebar-card h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    margin: 0 0 16px;
    padding-bottom: 12px;
    border-bottom: 2px solid var(--bg-alt);
    display: flex;
    align-items: center;
    gap: 10px;
}
.sidebar-card h3 i { color: var(--accent); }
.sidebar-info { list-style: none; }
.sidebar-info li {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--bg-alt);
    font-size: 14px;
}
.sidebar-info li:last-child { border-bottom: none; }
.sidebar-info span { color: var(--text-weak); }
.sidebar-info strong { color: var(--text); font-weight: 600; text-align: right; }
.sidebar-list li { border-bottom: 1px solid var(--bg-alt); }
.sidebar-list li:last-child { border-bottom: none; }
.sidebar-list a {
    display: flex;
    flex-direction: column;
    padding: 12px 0;
    transition: all var(--transition);
}
.sidebar-list a:hover { padding-left: 8px; }
.sidebar-list-title {
    font-size: 14px;
    color: var(--text);
    font-weight: 500;
    line-height: 1.5;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.sidebar-list a:hover .sidebar-list-title { color: var(--accent-dark); }
.sidebar-list-date {
    font-size: 12px;
    color: var(--text-weak);
    margin-top: 4px;
}
.sidebar-guide img {
    border-radius: var(--radius-sm);
    margin-bottom: 14px;
    width: 100%;
    height: 140px;
    object-fit: cover;
}
.sidebar-guide p {
    font-size: 14px;
    color: var(--text-weak);
    margin-bottom: 16px;
    line-height: 1.6;
}
.related-section { background: var(--bg-alt); padding: 64px 0; }
.section-head { text-align: center; margin-bottom: 48px; }
.section-tag {
    display: inline-block;
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--accent-dark);
    text-transform: uppercase;
    margin-bottom: 10px;
}
.section-head h2 {
    font-size: 32px;
    font-weight: 800;
    color: var(--primary);
    margin: 0 0 10px;
    letter-spacing: -0.5px;
}
.section-head p { color: var(--text-weak); font-size: 16px; margin: 0; }
.related-grid { margin-top: 8px; }
.related-card {
    display: block;
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    border: 1px solid var(--border);
    transition: all var(--transition);
    height: 100%;
}
.related-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}
.related-card-img { position: relative; overflow: hidden; }
.related-card-img img {
    width: 100%;
    height: 180px;
    object-fit: cover;
    transition: transform 0.4s ease;
}
.related-card:hover .related-card-img img { transform: scale(1.05); }
.related-cat {
    position: absolute;
    top: 12px;
    left: 12px;
    background: rgba(20, 33, 61, 0.85);
    color: var(--white);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    backdrop-filter: blur(4px);
}
.related-card-content { padding: 20px 20px 24px; }
.related-card-content h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    margin: 0 0 10px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.related-card:hover .related-card-content h3 { color: var(--accent-dark); }
.related-card-content p {
    font-size: 14px;
    color: var(--text-weak);
    margin: 0 0 14px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.related-date {
    font-size: 13px;
    color: var(--text-weak);
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.cta-section {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 80px 0;
    text-align: center;
}
.cta-overlay {
    position: absolute;
    inset: 0;
    background: rgba(20, 33, 61, 0.82);
}
.cta-content { position: relative; z-index: 2; color: var(--white); }
.cta-content h2 {
    font-size: 34px;
    font-weight: 800;
    margin: 0 0 12px;
    letter-spacing: -0.5px;
}
.cta-content p {
    font-size: 17px;
    color: rgba(255, 255, 255, 0.85);
    margin: 0 auto 32px;
    max-width: 560px;
}
.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.faq-section { padding: 64px 0; }
.faq-item {
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 20px;
    transition: all var(--transition);
}
.faq-item:hover {
    box-shadow: var(--shadow);
    border-color: var(--primary-light);
}
.faq-item h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--primary);
    margin: 0 0 10px;
    display: flex;
    align-items: center;
    gap: 10px;
}
.faq-item h3::before {
    content: 'Q';
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 28px;
    height: 28px;
    background: var(--accent);
    color: var(--primary);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 800;
    flex-shrink: 0;
}
.faq-item p {
    font-size: 14px;
    color: var(--text-weak);
    line-height: 1.7;
    margin: 0 0 0 38px;
}

.site-footer {
    background: var(--primary);
    color: rgba(255, 255, 255, 0.75);
    padding: 56px 0 24px;
}
.footer-inner {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 36px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-brand .logo { color: var(--white); font-size: 26px; }
.footer-brand .logo span { color: var(--accent); }
.footer-brand p {
    margin: 14px 0 0;
    font-size: 14px;
    line-height: 1.7;
    color: rgba(255, 255, 255, 0.6);
    max-width: 300px;
}
.footer-links h4 {
    color: var(--white);
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 1px;
    margin: 0 0 18px;
    text-transform: uppercase;
}
.footer-links ul li { margin-bottom: 10px; }
.footer-links ul a {
    color: rgba(255, 255, 255, 0.6);
    font-size: 14px;
    transition: all var(--transition);
    background: none;
    padding: 0;
}
.footer-links ul a:hover {
    color: var(--accent);
    padding-left: 4px;
}
.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-top: 24px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.4);
    flex-wrap: wrap;
    gap: 10px;
}
.footer-bottom a { color: rgba(255, 255, 255, 0.5); }
.footer-bottom a:hover { color: var(--accent); }

.not-found {
    text-align: center;
    padding: 48px 24px;
}
.not-found i {
    font-size: 48px;
    color: var(--border);
    margin-bottom: 16px;
}
.not-found h2 { font-size: 28px; color: var(--primary); margin-bottom: 12px; }
.not-found p { font-size: 16px; color: var(--text-weak); margin-bottom: 24px; }

@media (max-width: 1024px) {
    .article-body { padding: 30px 28px; }
    .article-hero h1 { font-size: 32px; }
    .section-head h2 { font-size: 28px; }
}
@media (max-width: 768px) {
    .header-inner { height: 64px; }
    .nav-toggle { display: block; }
    .main-nav {
        position: absolute;
        top: 64px;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        gap: 0;
        padding: 8px 24px 24px;
        border-bottom: 1px solid var(--border);
        display: none;
        box-shadow: var(--shadow);
    }
    .main-nav.open { display: flex; }
    .main-nav a {
        padding: 14px 0;
        border-bottom: 1px solid var(--border);
        width: 100%;
    }
    .main-nav a:last-child { border-bottom: none; }
    .main-nav a::after { display: none; }
    .main-nav a.active { color: var(--accent); }
    .article-hero { padding: 60px 0 48px; }
    .article-hero h1 { font-size: 28px; }
    .hero-desc { font-size: 16px; }
    .article-main { padding: 32px 0; }
    .article-body { padding: 20px 18px; }
    .article-body h2 { font-size: 22px; }
    .article-sidebar { position: static; margin-top: 32px; }
    .footer-inner { grid-template-columns: 1fr; gap: 32px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .section-head h2 { font-size: 26px; }
    .cta-content h2 { font-size: 28px; }
    .cta-section { padding: 56px 0; }
    .faq-section { padding: 48px 0; }
}
@media (max-width: 520px) {
    .container { padding: 0 16px; }
    .article-hero h1 { font-size: 24px; }
    .hero-meta { gap: 12px; }
    .cta-buttons .btn { width: 100%; }
    .footer-inner { gap: 24px; }
    .article-share { flex-wrap: wrap; }
}