/* roulang page: index */
:root{
  --primary:#0f1d4d;--primary-2:#1b2e6b;--primary-3:#2a3f8a;
  --accent:#c9a227;--accent-2:#e3bd4a;--accent-soft:#f5edda;
  --bg:#f4f6fb;--bg-white:#fff;--bg-dark:#081028;
  --text:#1f2937;--text-body:#4a5568;--text-light:#718096;
  --border:#e6eaf2;--radius-lg:20px;--radius-md:14px;--radius-sm:8px;
  --shadow-sm:0 2px 10px rgba(15,29,77,.05);
  --shadow-md:0 8px 30px rgba(15,29,77,.08);
  --shadow-lg:0 16px 50px rgba(15,29,77,.13);
  --transition:all .3s ease;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;background:var(--bg);color:var(--text);line-height:1.7;font-size:16px}
a{text-decoration:none;color:inherit;transition:var(--transition)}
img{max-width:100%;display:block}
button,input{font-family:inherit}
.container{max-width:1280px;margin:0 auto;padding:0 24px}
.section{padding:90px 0}
.section-head{text-align:center;max-width:760px;margin:0 auto 60px}
.section-tag{display:inline-block;background:var(--accent-soft);color:var(--accent);font-size:13px;font-weight:600;padding:5px 18px;border-radius:30px;letter-spacing:1px;margin-bottom:14px}
.section-title{font-size:32px;font-weight:700;color:var(--primary);line-height:1.3;margin-bottom:12px}
.section-sub{color:var(--text-body);font-size:16px}
.btn{display:inline-flex;align-items:center;gap:8px;padding:12px 30px;border-radius:50px;font-weight:600;font-size:15px;border:none;cursor:pointer;transition:var(--transition)}
.btn-primary{background:var(--primary);color:#fff}
.btn-primary:hover{background:var(--primary-2);transform:translateY(-2px);box-shadow:0 8px 25px rgba(15,29,77,.3)}
.btn-accent{background:var(--accent);color:#fff}
.btn-accent:hover{background:var(--accent-2);transform:translateY(-2px);box-shadow:0 8px 25px rgba(201,162,39,.35)}
.btn-outline{background:transparent;border:2px solid rgba(255,255,255,.6);color:#fff}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff}
/* Header */
.site-header{position:sticky;top:0;z-index:1000;background:rgba(255,255,255,.95);backdrop-filter:blur(12px);box-shadow:var(--shadow-sm);border-bottom:1px solid var(--border)}
.header-inner{display:flex;align-items:center;gap:24px;padding:14px 0}
.site-logo{display:flex;align-items:center;gap:10px;flex-shrink:0}
.logo-badge{width:40px;height:40px;background:linear-gradient(135deg,var(--primary),var(--primary-3));border-radius:12px;display:flex;align-items:center;justify-content:center;color:var(--accent-2);font-size:18px}
.logo-text{font-size:20px;font-weight:700;color:var(--primary);letter-spacing:1px}
.header-search{flex:1;max-width:520px;margin:0 auto}
.search-form{display:flex;align-items:center;background:var(--bg);border:1px solid var(--border);border-radius:50px;padding:4px 6px 4px 20px;transition:var(--transition)}
.search-form:focus-within{border-color:var(--accent);box-shadow:0 0 0 3px rgba(201,162,39,.15);background:#fff}
.search-form input{flex:1;border:none;background:transparent;padding:10px 0;font-size:14px;color:var(--text);outline:none}
.search-form input::placeholder{color:var(--text-light)}
.search-form button{background:var(--primary);border:none;color:#fff;width:40px;height:40px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;transition:var(--transition)}
.search-form button:hover{background:var(--accent)}
.site-nav{display:flex;align-items:center;gap:6px;flex-shrink:0}
.site-nav a{padding:8px 18px;border-radius:30px;font-size:14px;font-weight:500;color:var(--text-body)}
.site-nav a:hover{background:var(--bg);color:var(--primary)}
.site-nav a.active{background:var(--primary);color:#fff}
.nav-toggle{display:none;background:none;border:none;cursor:pointer;padding:8px;width:44px;height:44px;flex-direction:column;justify-content:center;align-items:center;gap:5px}
.nav-toggle span{display:block;width:22px;height:2px;background:var(--primary);border-radius:2px;transition:var(--transition)}
/* Hero */
.hero{position:relative;background:url('/assets/images/backpic/back-1.png') center/cover no-repeat;padding:130px 0;color:#fff}
.hero::before{content:'';position:absolute;inset:0;background:linear-gradient(135deg,rgba(8,16,40,.92),rgba(15,29,77,.78) 55%,rgba(201,162,39,.35))}
.hero-inner{position:relative;z-index:2;max-width:760px}
.hero-tag{display:inline-block;background:rgba(201,162,39,.18);border:1px solid rgba(201,162,39,.5);color:var(--accent-2);font-size:13px;font-weight:600;padding:5px 18px;border-radius:30px;margin-bottom:18px}
.hero h1{font-size:48px;font-weight:700;line-height:1.25;margin-bottom:18px}
.hero h1 span{color:var(--accent-2)}
.hero p{font-size:17px;color:rgba(255,255,255,.85);max-width:600px;margin-bottom:32px}
.hero-btns{display:flex;gap:16px;flex-wrap:wrap}
/* Stats */
.stats{padding:60px 0;background:var(--bg-white)}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px}
.stat-card{text-align:center;padding:30px 20px;border-radius:var(--radius-md);background:var(--bg);border:1px solid var(--border);transition:var(--transition)}
.stat-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-md);border-color:var(--accent)}
.stat-icon{font-size:32px;color:var(--accent);margin-bottom:12px}
.stat-num{font-size:42px;font-weight:700;color:var(--primary);line-height:1.2}
.stat-num span{font-size:20px;color:var(--accent)}
.stat-label{color:var(--text-body);font-size:14px;margin-top:6px}
/* Services */
.services{background:var(--bg)}
.services-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.service-card{background:var(--bg-white);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid var(--border);transition:var(--transition);display:flex;flex-direction:column}
.service-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg);border-color:rgba(201,162,39,.3)}
.service-card .cover{height:170px;overflow:hidden;position:relative}
.service-card .cover img{width:100%;height:100%;object-fit:cover;transition:transform .5s}
.service-card:hover .cover img{transform:scale(1.06)}
.service-card .cover::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(8,16,40,.45),transparent)}
.service-body{padding:24px;flex:1;display:flex;flex-direction:column}
.service-icon{width:46px;height:46px;border-radius:12px;background:var(--accent-soft);color:var(--accent);display:flex;align-items:center;justify-content:center;font-size:20px;margin-top:-46px;position:relative;z-index:2;border:3px solid #fff;margin-bottom:14px}
.service-card h3{font-size:17px;font-weight:600;color:var(--primary);margin-bottom:8px}
.service-card p{font-size:14px;color:var(--text-body);flex:1;line-height:1.6}
.service-link{color:var(--accent);font-size:14px;font-weight:600;margin-top:14px;display:inline-flex;align-items:center;gap:6px}
.service-link:hover{color:var(--primary);gap:10px}
/* About */
.about-grid{display:grid;grid-template-columns:1fr 1fr;gap:60px;align-items:center}
.about-image{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-lg);position:relative}
.about-image img{width:100%;height:400px;object-fit:cover}
.about-image::after{content:'';position:absolute;inset:0;background:linear-gradient(45deg,transparent 70%,rgba(201,162,39,.25))}
.about-badge{position:absolute;bottom:20px;left:20px;background:rgba(255,255,255,.95);backdrop-filter:blur(8px);padding:14px 22px;border-radius:var(--radius-md);box-shadow:var(--shadow-md);z-index:2}
.about-badge .num{font-size:28px;font-weight:700;color:var(--primary)}
.about-badge .label{font-size:13px;color:var(--text-body)}
.about-text h2{font-size:30px;color:var(--primary);margin-bottom:16px}
.about-text p{color:var(--text-body);margin-bottom:16px;font-size:15px}
.about-features{display:grid;grid-template-columns:1fr 1fr;gap:14px;margin-top:22px}
.about-feature{display:flex;align-items:center;gap:10px;font-size:14px;color:var(--text-body)}
.about-feature i{color:var(--accent)}
/* News */
.news-section{background:var(--bg-white)}
.news-grid{display:grid;grid-template-columns:2fr 1fr;gap:40px}
.news-list{display:flex;flex-direction:column;gap:16px}
.news-card{display:flex;align-items:center;gap:18px;background:var(--bg);border-radius:var(--radius-md);padding:18px 22px;border:1px solid var(--border);transition:var(--transition)}
.news-card:hover{border-color:var(--accent);box-shadow:var(--shadow-md);transform:translateX(4px)}
.news-card .news-date{flex-shrink:0;text-align:center;background:var(--bg-white);border-radius:var(--radius-sm);padding:8px 12px;min-width:64px;border:1px solid var(--border)}
.news-card .news-date .d{font-size:22px;font-weight:700;color:var(--primary);display:block;line-height:1.2}
.news-card .news-date .m{font-size:12px;color:var(--text-light)}
.news-card .news-body{flex:1}
.news-card .news-cat{display:inline-block;font-size:12px;color:var(--accent);background:var(--accent-soft);padding:2px 10px;border-radius:4px;margin-bottom:4px}
.news-card h4{font-size:15px;color:var(--text);font-weight:600;line-height:1.4}
.news-card .news-desc{font-size:13px;color:var(--text-body);margin-top:4px}
.news-more{text-align:center;margin-top:30px}
.news-sidebar .side-card{background:var(--bg);border-radius:var(--radius-md);padding:26px;border:1px solid var(--border);margin-bottom:20px}
.news-sidebar .side-title{font-size:16px;font-weight:600;color:var(--primary);margin-bottom:14px;display:flex;align-items:center;gap:8px}
.news-sidebar .side-title i{color:var(--accent)}
.tag-list{display:flex;flex-wrap:wrap;gap:8px}
.tag{display:inline-block;background:var(--bg-white);border:1px solid var(--border);padding:5px 14px;border-radius:30px;font-size:13px;color:var(--text-body);transition:var(--transition)}
.tag:hover{border-color:var(--accent);color:var(--accent);background:var(--accent-soft)}
.side-list li{list-style:none;padding:10px 0;border-bottom:1px dashed var(--border);font-size:14px;color:var(--text-body)}
.side-list li:last-child{border-bottom:none}
.side-list li a:hover{color:var(--accent)}
/* Categories */
.categories{background:var(--bg)}
.cat-grid{display:grid;grid-template-columns:1fr 1fr;gap:28px}
.cat-card{position:relative;border-radius:var(--radius-lg);overflow:hidden;min-height:300px;display:flex;align-items:flex-end;box-shadow:var(--shadow-md);transition:var(--transition)}
.cat-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.cat-card img{position:absolute;inset:0;width:100%;height:100%;object-fit:cover}
.cat-card::after{content:'';position:absolute;inset:0;background:linear-gradient(to top,rgba(8,16,40,.88),rgba(8,16,40,.25) 60%,rgba(8,16,40,.1))}
.cat-card .cat-content{position:relative;z-index:2;padding:30px;width:100%}
.cat-card .cat-tag{display:inline-block;font-size:12px;font-weight:600;letter-spacing:1px;background:rgba(201,162,39,.2);color:var(--accent-2);padding:4px 14px;border-radius:30px;margin-bottom:12px}
.cat-card h3{font-size:24px;color:#fff;background:#fff;-webkit-background-clip:text;margin-bottom:8px}
.cat-card p{color:rgba(255,255,255,.8);font-size:14px;margin-bottom:16px}
.cat-card .btn{background:var(--accent);color:#fff;padding:9px 22px;font-size:14px;border-radius:30px}
.cat-card .btn:hover{background:var(--accent-2)}
/* Timeline */
.timeline{background:var(--bg-white)}
.timeline-section{max-width:800px;margin:0 auto}
.timeline-item{position:relative;padding-left:40px;padding-bottom:36px;border-left:2px solid var(--border)}
.timeline-item:last-child{padding-bottom:0;border-left-color:transparent}
.timeline-item::before{content:'';position:absolute;left:-8px;top:0;width:16px;height:16px;border-radius:50%;background:var(--accent);border:3px solid #fff;box-shadow:0 0 0 2px var(--accent)}
.timeline-item .tl-date{font-size:13px;color:var(--accent);font-weight:600}
.timeline-item h3{font-size:18px;color:var(--primary);margin:4px 0}
.timeline-item p{font-size:14px;color:var(--text-body)}
/* FAQ */
.faq-section{background:var(--bg)}
.faq-list{max-width:760px;margin:0 auto}
.faq-item{background:var(--bg-white);border-radius:var(--radius-md);border:1px solid var(--border);margin-bottom:12px;overflow:hidden;transition:var(--transition)}
.faq-item:hover{border-color:rgba(201,162,39,.3);box-shadow:var(--shadow-sm)}
.faq-item summary{padding:20px 24px;cursor:pointer;font-weight:600;font-size:16px;color:var(--text);list-style:none;display:flex;justify-content:space-between;align-items:center;gap:12px}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{content:'\f078';font-family:"Font Awesome 6 Free";font-weight:900;color:var(--accent);transition:var(--transition)}
.faq-item[open] summary::after{transform:rotate(180deg)}
.faq-item .faq-body{padding:0 24px 20px;color:var(--text-body);font-size:14px;line-height:1.7}
/* CTA */
.cta-section{position:relative;background:url('/assets/images/backpic/back-2.png') center/cover no-repeat;padding:90px 0;color:#fff}
.cta-section::before{content:'';position:absolute;inset:0;background:rgba(8,16,40,.85)}
.cta-inner{position:relative;z-index:2;text-align:center;max-width:640px;margin:0 auto}
.cta-inner h2{font-size:34px;margin-bottom:14px}
.cta-inner p{color:rgba(255,255,255,.85);margin-bottom:30px}
/* Footer */
.site-footer{background:var(--bg-dark);color:rgba(255,255,255,.7);padding:70px 0 0}
.footer-grid{display:grid;grid-template-columns:1.5fr 1fr 1fr;gap:40px;padding-bottom:50px;border-bottom:1px solid rgba(255,255,255,.1)}
.footer-about .logo-text{color:#fff;font-size:22px}
.footer-about p{font-size:14px;line-height:1.7;margin-top:14px}
.footer-links h4{color:#fff;font-size:16px;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,.6)}
.footer-links a:hover{color:var(--accent-2)}
.footer-bottom{text-align:center;padding:24px 0;font-size:13px;color:rgba(255,255,255,.4)}
/* Mobile Menu */
@media(max-width:1024px){
  .site-header .header-search{max-width:340px}
  .site-nav a{padding:8px 12px;font-size:13px}
  .services-grid{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:768px){
  .header-inner{flex-wrap:wrap}
  .site-nav{display:none;width:100%;flex-direction:column;background:#fff;border-radius:var(--radius-md);box-shadow:var(--shadow-md);padding:12px;position:absolute;top:100%;left:0;right:0;z-index:1000}
  .site-nav.open{display:flex}
  .site-nav a{width:100%;text-align:center}
  .nav-toggle{display:flex}
  .header-search{order:2;max-width:100%}
  .hero{padding:90px 0}
  .hero h1{font-size:34px}
  .stats-grid{grid-template-columns:repeat(2,1fr)}
  .services-grid{grid-template-columns:1fr}
  .about-grid{grid-template-columns:1fr;gap:30px}
  .news-grid{grid-template-columns:1fr}
  .cat-grid{grid-template-columns:1fr}
  .footer-grid{grid-template-columns:1fr;gap:30px}
  .section{padding:60px 0}
  .section-title{font-size:26px}
}
@media(max-width:520px){
  .hero h1{font-size:28px}
  .hero p{font-size:15px}
  .hero-btns .btn{width:100%;justify-content:center}
  .stats-grid{grid-template-columns:1fr}
  .about-features{grid-template-columns:1fr}
  .news-card{flex-direction:column;align-items:flex-start}
  .news-card .news-date{min-width:auto;display:inline-block;padding:6px 12px}
}

/* roulang page: article */
:root {
    --primary: #0d4f8b;
    --primary-dark: #09365f;
    --primary-light: #eaf3fc;
    --accent: #d9a84e;
    --accent-dark: #b98a34;
    --accent-light: #fdf6e9;
    --bg: #f4f6fa;
    --white: #ffffff;
    --text: #182236;
    --text-2: #4e5d73;
    --text-3: #8b96a9;
    --border: #e1e8f1;
    --radius-lg: 20px;
    --radius-md: 14px;
    --radius-sm: 8px;
    --shadow-sm: 0 4px 16px rgba(13, 79, 139, 0.06);
    --shadow-md: 0 12px 32px rgba(13, 79, 139, 0.1);
    --shadow-lg: 0 22px 48px rgba(13, 79, 139, 0.16);
    --gradient: linear-gradient(135deg, #0d4f8b 0%, #09365f 100%);
    --gradient-gold: linear-gradient(135deg, #d9a84e 0%, #b98a34 100%);
    --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
    margin: 0;
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.7;
    color: var(--text);
    background: var(--bg);
    -webkit-font-smoothing: antialiased;
}
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }
a { color: inherit; text-decoration: none; transition: all .25s ease; }
img { max-width: 100%; height: auto; display: block; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5, h6 { margin: 0; font-weight: 700; line-height: 1.3; }
p { margin: 0; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
input, select, textarea { font-family: inherit; }

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 26px;
    border-radius: 50px;
    font-size: 15px;
    font-weight: 600;
    line-height: 1.4;
    border: 2px solid transparent;
    transition: all .3s ease;
    cursor: pointer;
    white-space: nowrap;
}
.btn-primary { background: var(--gradient); color: #fff; box-shadow: 0 6px 18px rgba(13, 79, 139, 0.24); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: var(--shadow-lg); color: #fff; }
.btn-accent { background: var(--gradient-gold); color: #fff; box-shadow: 0 6px 18px rgba(217, 168, 78, 0.28); }
.btn-accent:hover { background: var(--accent-dark); transform: translateY(-2px); box-shadow: 0 12px 28px rgba(217, 168, 78, 0.36); color: #fff; }
.btn-outline { border-color: var(--primary); color: var(--primary); background: transparent; }
.btn-outline:hover { background: var(--primary-light); transform: translateY(-2px); }
.btn-ghost { border-color: rgba(255, 255, 255, 0.5); color: #fff; background: transparent; }
.btn-ghost:hover { background: rgba(255, 255, 255, 0.12); border-color: #fff; transform: translateY(-2px); color: #fff; }
.btn:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; }

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background: rgba(255,255,255,0.92);
    backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border);
    box-shadow: 0 4px 20px rgba(13,79,139,0.04);
}
.header-inner {
    display: flex;
    align-items: center;
    gap: 24px;
    padding: 14px 0;
    min-height: 76px;
}
.site-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    flex-shrink: 0;
}
.logo-badge {
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: var(--gradient);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    box-shadow: 0 8px 20px rgba(13,79,139,0.28);
}
.logo-text {
    font-size: 22px;
    font-weight: 800;
    letter-spacing: .5px;
    color: var(--primary);
    white-space: nowrap;
}
.header-search { flex: 0 1 460px; margin: 0 auto; }
.search-form {
    display: flex;
    align-items: center;
    background: #fff;
    border: 2px solid var(--border);
    border-radius: 50px;
    overflow: hidden;
    transition: border-color .25s, box-shadow .25s;
}
.search-form:focus-within {
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(13,79,139,0.1);
}
.search-form input[type="search"] {
    flex: 1;
    min-width: 0;
    border: none;
    outline: none;
    padding: 10px 8px 10px 20px;
    font-size: 14px;
    color: var(--text);
    background: transparent;
    -webkit-appearance: none;
    appearance: none;
}
.search-form input[type="search"]::placeholder { color: var(--text-3); }
.search-form button {
    width: 46px;
    height: 42px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient);
    color: #fff;
    font-size: 15px;
    border-radius: 0 50px 50px 0;
    transition: background .25s;
}
.search-form button:hover { background: var(--primary-dark); }
.site-nav { display: flex; align-items: center; gap: 4px; flex-shrink: 0; }
.site-nav a {
    padding: 9px 16px;
    border-radius: 50px;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-2);
    transition: all .25s;
    white-space: nowrap;
}
.site-nav a:hover { color: var(--primary); background: var(--primary-light); }
.site-nav a.active { color: #fff; background: var(--gradient); box-shadow: 0 6px 16px rgba(13,79,139,0.2); }
.nav-toggle {
    display: none;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 44px;
    height: 44px;
    padding: 10px;
    border-radius: 12px;
    border: 1px solid var(--border);
    background: #fff;
    transition: all .25s;
}
.nav-toggle span { display: block; height: 2px; width: 100%; background: var(--primary); border-radius: 2px; transition: all .3s ease; }
.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-banner {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 96px 0 80px;
    color: #fff;
}
.banner-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(9,54,95,0.92) 0%, rgba(13,79,139,0.82) 60%, rgba(13,79,139,0.68) 100%);
}
.banner-content { position: relative; z-index: 2; max-width: 900px; }
.breadcrumb {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
    font-size: 14px;
    margin-bottom: 20px;
    color: rgba(255,255,255,0.8);
}
.breadcrumb a { display: inline-flex; align-items: center; gap: 6px; }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb-sep { font-size: 12px; color: rgba(255,255,255,0.5); }
.breadcrumb-current {
    color: #fff;
    font-weight: 600;
    max-width: 360px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}
.banner-content h1 {
    font-size: 38px;
    font-weight: 800;
    line-height: 1.3;
    margin-bottom: 14px;
    text-shadow: 0 4px 20px rgba(0,0,0,0.2);
}
.banner-content p {
    font-size: 16px;
    line-height: 1.8;
    color: rgba(255,255,255,0.85);
    max-width: 680px;
}

.article-layout {
    margin-top: -40px;
    align-items: flex-start;
}
.article-primary { flex: 0 0 auto; }
.article-secondary { flex: 0 0 auto; }
.article-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-md);
    padding: 40px 42px;
    border: 1px solid rgba(225,232,241,0.7);
}
.article-head { margin-bottom: 30px; }
.article-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 14px;
    border-radius: 50px;
    background: var(--accent-light);
    color: var(--accent-dark);
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 16px;
}
.article-title { font-size: 30px; font-weight: 800; line-height: 1.4; color: var(--text); margin-bottom: 14px; }
.article-meta {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 18px;
    color: var(--text-3);
    font-size: 14px;
}
.meta-item { display: inline-flex; align-items: center; gap: 6px; }
.meta-item i { color: var(--primary); }

.article-content {
    font-size: 16px;
    line-height: 1.9;
    color: var(--text);
}
.article-content h2 {
    font-size: 24px;
    margin: 38px 0 16px;
    padding-left: 14px;
    border-left: 4px solid var(--accent);
    color: var(--text);
}
.article-content h3 { font-size: 20px; margin: 30px 0 12px; color: var(--text); }
.article-content p { margin-bottom: 18px; }
.article-content img { border-radius: 14px; margin: 24px auto; box-shadow: var(--shadow-sm); }
.article-content ul, .article-content ol { margin: 0 0 20px 28px; list-style: disc; }
.article-content ol { list-style: decimal; }
.article-content li { margin-bottom: 8px; padding-left: 4px; }
.article-content blockquote {
    border-left: 4px solid var(--primary);
    background: var(--primary-light);
    padding: 16px 22px;
    border-radius: 0 14px 14px 0;
    margin: 24px 0;
    color: var(--text-2);
}
.article-content blockquote p { margin: 0; }
.article-content a { color: var(--primary); text-decoration: underline; text-underline-offset: 3px; }
.article-content a:hover { color: var(--accent-dark); }
.article-content code {
    background: #eef1f6;
    border-radius: 6px;
    padding: 2px 8px;
    font-size: 14px;
    color: var(--primary-dark);
}

.article-tags { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 32px; padding-top: 24px; border-top: 1px solid var(--border); }
.tag {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    border-radius: 50px;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 13px;
    font-weight: 600;
}
.tag:hover { background: var(--primary); color: #fff; }

.article-notfound {
    text-align: center;
    padding: 60px 0 40px;
}
.notfound-icon {
    width: 90px;
    height: 90px;
    margin: 0 auto 24px;
    border-radius: 50%;
    background: var(--primary-light);
    color: var(--primary);
    font-size: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.article-notfound .article-title { margin-bottom: 12px; }
.article-notfound p { color: var(--text-2); margin-bottom: 24px; }

.sidebar-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 24px;
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--border);
    margin-bottom: 24px;
    transition: box-shadow .3s;
}
.sidebar-card:hover { box-shadow: var(--shadow-md); }
.sidebar-head {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 16px;
    font-weight: 700;
    color: var(--text);
    padding-bottom: 14px;
    margin-bottom: 16px;
    border-bottom: 2px solid var(--primary-light);
    position: relative;
}
.sidebar-head::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: -2px;
    width: 46px;
    height: 2px;
    background: var(--accent);
}
.sidebar-head i { color: var(--accent); }
.sidebar-img {
    border-radius: var(--radius-md);
    margin-bottom: 14px;
    width: 100%;
    object-fit: cover;
}
.sidebar-card p { font-size: 14px; color: var(--text-2); line-height: 1.8; margin-bottom: 14px; }
.sidebar-card .btn { width: 100%; }
.sidebar-list li { border-bottom: 1px solid var(--border); }
.sidebar-list li:last-child { border-bottom: none; }
.sidebar-list a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 13px 4px;
    font-size: 15px;
    font-weight: 600;
    color: var(--text-2);
    border-radius: 8px;
}
.sidebar-list a i { color: var(--primary); width: 20px; text-align: center; }
.sidebar-list a:hover { color: var(--primary); padding-left: 10px; }

.section { padding: 90px 0; }
.section-head {
    text-align: center;
    max-width: 680px;
    margin: 0 auto 50px;
}
.section-tag {
    display: inline-block;
    padding: 6px 18px;
    border-radius: 50px;
    background: var(--accent-light);
    color: var(--accent-dark);
    font-size: 13px;
    font-weight: 700;
    margin-bottom: 14px;
    letter-spacing: 1px;
}
.section-head h2 { font-size: 32px; font-weight: 800; color: var(--text); margin-bottom: 12px; }
.section-head p { font-size: 16px; color: var(--text-2); line-height: 1.8; }

.step-section { background: var(--white); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }
.step-item {
    background: var(--bg);
    border-radius: var(--radius-lg);
    padding: 38px 30px;
    text-align: center;
    border: 1px solid var(--border);
    transition: all .3s ease;
    height: 100%;
}
.step-item:hover {
    background: var(--white);
    border-color: rgba(13,79,139,0.2);
    box-shadow: var(--shadow-md);
    transform: translateY(-6px);
}
.step-icon {
    width: 68px;
    height: 68px;
    margin: 0 auto 20px;
    border-radius: 20px;
    background: var(--gradient);
    color: #fff;
    font-size: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 10px 24px rgba(13,79,139,0.24);
}
.step-item h3 { font-size: 18px; color: var(--text); margin-bottom: 10px; }
.step-item p { font-size: 14px; color: var(--text-2); line-height: 1.8; }

.topic-section { background: var(--bg); }
.topic-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid var(--border);
    box-shadow: var(--shadow-sm);
    transition: all .35s ease;
    height: 100%;
    display: flex;
    flex-direction: column;
}
.topic-card:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-8px);
    border-color: rgba(13,79,139,0.15);
}
.topic-card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-bottom: 3px solid var(--accent);
    transition: transform .45s ease;
}
.topic-card:hover img { transform: scale(1.03); }
.topic-body { padding: 26px 24px 28px; display: flex; flex-direction: column; flex: 1; }
.topic-body h3 { font-size: 18px; color: var(--text); margin-bottom: 10px; }
.topic-body p { font-size: 14px; color: var(--text-2); line-height: 1.8; margin-bottom: 18px; flex: 1; }
.card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-weight: 700;
    color: var(--primary);
}
.card-link i { transition: transform .3s; }
.card-link:hover { color: var(--accent-dark); }
.card-link:hover i { transform: translateX(5px); }

.cta-section {
    position: relative;
    background-image: url('/assets/images/backpic/back-3.png');
    background-size: cover;
    background-position: center;
    padding: 100px 0;
}
.cta-section::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(9,54,95,0.94), rgba(13,79,139,0.84));
}
.cta-inner {
    position: relative;
    z-index: 2;
    text-align: center;
    color: #fff;
    max-width: 720px;
    margin: 0 auto;
}
.cta-inner h2 { font-size: 34px; font-weight: 800; margin-bottom: 14px; }
.cta-inner p { font-size: 16px; color: rgba(255,255,255,0.85); margin-bottom: 28px; line-height: 1.8; }
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

.site-footer {
    background: #0b1f33;
    color: #a6b3c4;
    padding: 70px 0 0;
}
.footer-grid {
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 50px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-about .site-logo { margin-bottom: 16px; }
.footer-about p { font-size: 14px; line-height: 1.9; color: #8fa0b5; max-width: 360px; }
.footer-links h4 {
    font-size: 16px;
    color: #fff;
    margin-bottom: 18px;
    padding-bottom: 10px;
    position: relative;
}
.footer-links h4::after {
    content: '';
    position: absolute;
    left: 0;
    bottom: 0;
    width: 34px;
    height: 2px;
    background: var(--accent);
}
.footer-links li { margin-bottom: 12px; }
.footer-links a { font-size: 14px; color: #8fa0b5; transition: all .25s; }
.footer-links a:hover { color: var(--accent); padding-left: 6px; }
.footer-bottom {
    padding: 22px 0;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    font-size: 14px;
    color: #6d7e93;
}
.footer-bottom p { margin: 0; }

@media (max-width: 1024px) {
    .article-layout { margin-top: -30px; }
    .article-card { padding: 32px 30px; }
    .banner-content h1 { font-size: 32px; }
    .step-item { padding: 30px 22px; }
    .cta-inner h2 { font-size: 28px; }
}
@media (max-width: 840px) {
    .header-inner {
        flex-wrap: wrap;
        gap: 12px;
        padding: 12px 0;
    }
    .header-search { order: 3; flex: 0 0 100%; max-width: none; margin: 6px 0 0; }
    .site-nav {
        display: none;
        order: 4;
        flex: 0 0 100%;
        flex-direction: column;
        align-items: stretch;
        padding: 10px 0 4px;
        border-top: 1px solid var(--border);
    }
    .site-nav.open { display: flex; }
    .site-nav a { text-align: center; padding: 12px 16px; }
    .nav-toggle { display: flex; }
    .article-banner { padding: 70px 0 60px; }
    .banner-content h1 { font-size: 28px; }
    .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
    .footer-about { grid-column: 1 / -1; }
}
@media (max-width: 640px) {
    .container { padding: 0 18px; }
    .logo-text { font-size: 18px; }
    .logo-badge { width: 38px; height: 38px; font-size: 17px; border-radius: 12px; }
    .article-layout { margin-top: -20px; }
    .article-card { padding: 26px 20px; border-radius: 16px; }
    .article-title { font-size: 24px; }
    .article-meta { gap: 12px; font-size: 13px; }
    .article-content { font-size: 15px; line-height: 1.85; }
    .article-content h2 { font-size: 20px; margin: 30px 0 14px; }
    .article-content h3 { font-size: 18px; }
    .banner-content h1 { font-size: 24px; }
    .breadcrumb { font-size: 13px; }
    .section { padding: 64px 0; }
    .section-head h2 { font-size: 26px; }
    .cta-section { padding: 70px 0; }
    .cta-inner h2 { font-size: 24px; }
    .cta-actions .btn { width: 100%; }
    .footer-grid { grid-template-columns: 1fr; gap: 28px; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .topic-card img { height: 170px; }
}

/* roulang page: category1 */
:root{
    --primary:#162b47;
    --primary-light:#1f3a5f;
    --primary-dark:#0e1e33;
    --accent:#c9a35c;
    --accent-light:#dbba75;
    --accent-dark:#a9853f;
    --bg:#f6f8fb;
    --bg-white:#ffffff;
    --bg-dark:#101e2e;
    --text:#1c2430;
    --text-light:#6b7a8d;
    --text-white:#ffffff;
    --border:#e2e8f0;
    --radius:14px;
    --radius-sm:8px;
    --shadow:0 6px 24px rgba(15,35,65,.08);
    --shadow-hover:0 14px 36px rgba(15,35,65,.14);
    --transition:all .3s ease;
    --font-main:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{
    font-family:var(--font-main);
    background:var(--bg);
    color:var(--text);
    line-height:1.7;
    font-size:16px;
    -webkit-font-smoothing:antialiased;
}
img{max-width:100%;display:block}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--accent)}
ul,ol{list-style:none}
button,input{font-family:inherit;font-size:inherit}
.container{width:100%;max-width:1200px;margin:0 auto;padding:0 20px}
.row{max-width:1200px}
.section{padding:84px 0;position:relative}
.section-light{background:var(--bg-white)}
.section-dark{background:var(--bg-dark);color:var(--text-white)}
.section-head{text-align:center;max-width:720px;margin:0 auto 48px}
.section-tag{
    display:inline-block;
    background:rgba(201,163,92,.12);
    color:var(--accent-dark);
    font-size:13px;
    font-weight:700;
    letter-spacing:1px;
    padding:6px 18px;
    border-radius:30px;
    margin-bottom:14px;
    text-transform:uppercase;
}
.section-head h2{
    font-size:34px;
    font-weight:800;
    color:var(--primary);
    line-height:1.3;
    margin-bottom:12px;
    letter-spacing:-.5px;
}
.section-head p{
    font-size:16px;
    color:var(--text-light);
    line-height:1.8;
}
.btn{
    display:inline-flex;
    align-items:center;
    gap:10px;
    padding:12px 30px;
    border-radius:50px;
    font-size:15px;
    font-weight:700;
    border:none;
    cursor:pointer;
    transition:var(--transition);
    line-height:1.4;
    justify-content:center;
}
.btn i{font-size:14px}
.btn-primary{
    background:var(--accent);
    color:#fff;
    box-shadow:0 6px 20px rgba(201,163,92,.35);
}
.btn-primary:hover{
    background:var(--accent-dark);
    transform:translateY(-2px);
    box-shadow:0 10px 30px rgba(201,163,92,.4);
}
.btn-primary:active{transform:translateY(0)}
.btn-primary:focus-visible{
    outline:3px solid rgba(201,163,92,.5);
    outline-offset:3px;
}
.btn-ghost{
    background:transparent;
    color:#fff;
    border:2px solid rgba(255,255,255,.6);
}
.btn-ghost:hover{
    background:rgba(255,255,255,.12);
    border-color:#fff;
    transform:translateY(-2px);
}
.btn-ghost:focus-visible{
    outline:3px solid rgba(255,255,255,.4);
    outline-offset:3px;
}
.btn-light{
    background:rgba(255,255,255,.15);
    color:#fff;
    border:2px solid rgba(255,255,255,.45);
    backdrop-filter:blur(4px);
}
.btn-light:hover{
    background:rgba(255,255,255,.25);
    transform:translateY(-2px);
}
.btn-lg{padding:15px 38px;font-size:16px}
.badge{
    display:inline-flex;
    align-items:center;
    padding:4px 14px;
    border-radius:30px;
    font-size:12px;
    font-weight:700;
    letter-spacing:.3px;
}
.badge-primary{background:var(--primary);color:#fff}
.badge-gold{background:var(--accent);color:#fff}
/* ===== Header ===== */
.site-header{
    background:rgba(255,255,255,.95);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--border);
    position:sticky;
    top:0;
    z-index:1000;
    box-shadow:0 2px 16px rgba(15,35,65,.05);
}
.header-inner{
    display:flex;
    align-items:center;
    gap:28px;
    height:70px;
}
.site-logo{
    display:flex;
    align-items:center;
    gap:10px;
    flex-shrink:0;
}
.logo-badge{
    width:38px;
    height:38px;
    border-radius:10px;
    background:linear-gradient(135deg,var(--primary),var(--primary-light));
    color:var(--accent);
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:17px;
    box-shadow:0 4px 12px rgba(22,43,71,.25);
}
.logo-text{
    font-size:21px;
    font-weight:800;
    color:var(--primary);
    letter-spacing:-.3px;
    white-space:nowrap;
}
.header-search{
    flex:1;
    max-width:440px;
    margin:0 auto;
}
.search-form{
    display:flex;
    background:var(--bg);
    border:1.5px solid var(--border);
    border-radius:50px;
    overflow:hidden;
    padding:0 6px 0 18px;
    align-items:center;
    transition:var(--transition);
}
.search-form:focus-within{
    border-color:var(--accent);
    background:#fff;
    box-shadow:0 0 0 4px rgba(201,163,92,.12);
}
.search-form input{
    flex:1;
    border:none;
    background:transparent;
    padding:10px 0;
    font-size:14px;
    color:var(--text);
    outline:none;
    width:100%;
    min-width:0;
}
.search-form input::placeholder{color:var(--text-light);font-size:13px}
.search-form button{
    background:var(--primary);
    color:#fff;
    border:none;
    width:38px;
    height:38px;
    border-radius:50%;
    cursor:pointer;
    display:flex;
    align-items:center;
    justify-content:center;
    transition:var(--transition);
    flex-shrink:0;
    font-size:14px;
}
.search-form button:hover{background:var(--accent);color:#fff}
.site-nav{
    display:flex;
    align-items:center;
    gap:4px;
    flex-shrink:0;
}
.site-nav a{
    padding:8px 18px;
    border-radius:8px;
    font-size:14px;
    font-weight:600;
    color:var(--text-light);
    white-space:nowrap;
    transition:var(--transition);
}
.site-nav a:hover{
    color:var(--primary);
    background:var(--bg);
}
.site-nav a.active{
    color:var(--primary);
    background:rgba(22,43,71,.08);
    font-weight:700;
}
.nav-toggle{
    display:none;
    flex-direction:column;
    gap:5px;
    background:none;
    border:none;
    padding:10px;
    cursor:pointer;
    z-index:1100;
    margin-left:auto;
}
.nav-toggle span{
    display:block;
    width:24px;
    height:2.5px;
    background:var(--primary);
    border-radius:3px;
    transition:var(--transition);
}
.nav-toggle.active span:nth-child(1){transform:translateY(7.5px) rotate(45deg)}
.nav-toggle.active span:nth-child(2){opacity:0}
.nav-toggle.active span:nth-child(3){transform:translateY(-7.5px) rotate(-45deg)}
/* ===== Banner ===== */
.page-banner{
    background:linear-gradient(135deg,rgba(14,30,51,.92),rgba(31,58,95,.78)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
    color:var(--text-white);
    padding:100px 0 88px;
    position:relative;
    overflow:hidden;
}
.page-banner::before{
    content:'';
    position:absolute;
    top:-60%;
    right:-20%;
    width:500px;
    height:500px;
    background:radial-gradient(circle,rgba(201,163,92,.18),transparent 70%);
    pointer-events:none;
}
.page-banner::after{
    content:'';
    position:absolute;
    bottom:-30%;
    left:-10%;
    width:400px;
    height:400px;
    background:radial-gradient(circle,rgba(255,255,255,.06),transparent 70%);
    pointer-events:none;
}
.page-banner .container{position:relative;z-index:2}
.breadcrumb{
    display:flex;
    align-items:center;
    gap:8px;
    font-size:13px;
    margin-bottom:28px;
    color:rgba(255,255,255,.7);
}
.breadcrumb a{color:rgba(255,255,255,.8)}
.breadcrumb a:hover{color:var(--accent-light)}
.breadcrumb .sep{font-size:10px;color:rgba(255,255,255,.4)}
.breadcrumb .current{color:var(--accent-light);font-weight:600}
.banner-content{max-width:720px}
.banner-tag{
    display:inline-flex;
    align-items:center;
    gap:8px;
    background:rgba(255,255,255,.12);
    border:1px solid rgba(255,255,255,.18);
    backdrop-filter:blur(6px);
    color:#fff;
    font-size:13px;
    font-weight:600;
    padding:7px 18px;
    border-radius:30px;
    margin-bottom:22px;
}
.banner-tag i{color:var(--accent-light)}
.banner-content h1{
    font-size:44px;
    font-weight:800;
    line-height:1.2;
    margin-bottom:18px;
    letter-spacing:-1px;
}
.banner-content p{
    font-size:17px;
    line-height:1.8;
    color:rgba(255,255,255,.85);
    margin-bottom:32px;
    max-width:600px;
}
.banner-actions{display:flex;gap:16px;flex-wrap:wrap}
/* ===== Guide Cards ===== */
.guide-entry{background:var(--bg)}
.guide-card{
    background:#fff;
    border-radius:var(--radius);
    overflow:hidden;
    box-shadow:var(--shadow);
    transition:var(--transition);
    height:100%;
    display:flex;
    flex-direction:column;
    border:1px solid rgba(226,232,240,.6);
}
.guide-card:hover{
    transform:translateY(-8px);
    box-shadow:var(--shadow-hover);
}
.guide-card-img{
    position:relative;
    padding-top:66%;
    overflow:hidden;
}
.guide-card-img img{
    position:absolute;
    inset:0;
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .5s ease;
}
.guide-card:hover .guide-card-img img{transform:scale(1.06)}
.guide-card-img::after{
    content:'';
    position:absolute;
    inset:0;
    background:linear-gradient(180deg,transparent 40%,rgba(14,30,51,.35));
}
.guide-card-num{
    position:absolute;
    top:14px;
    right:14px;
    background:rgba(255,255,255,.92);
    color:var(--primary);
    font-size:13px;
    font-weight:800;
    padding:5px 14px;
    border-radius:30px;
    box-shadow:0 4px 12px rgba(0,0,0,.15);
    z-index:2;
}
.guide-card-body{
    padding:22px 24px 24px;
    flex:1;
    display:flex;
    flex-direction:column;
    gap:10px;
}
.guide-card-body h3{
    font-size:18px;
    font-weight:700;
    color:var(--primary);
}
.guide-card-body p{
    font-size:14px;
    color:var(--text-light);
    line-height:1.7;
    flex:1;
}
.card-link{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:14px;
    font-weight:700;
    color:var(--accent-dark);
}
.card-link i{font-size:12px;transition:transform .3s}
.card-link:hover{color:var(--accent)}
.card-link:hover i{transform:translateX(4px)}
/* ===== Features ===== */
.section-features{
    background:var(--bg-white);
    border-top:1px solid var(--border);
    border-bottom:1px solid var(--border);
}
.feature-grid .columns{padding:15px}
.feature-card{
    background:var(--bg);
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:32px 28px;
    height:100%;
    text-align:center;
    transition:var(--transition);
    position:relative;
    overflow:hidden;
}
.feature-card::before{
    content:'';
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:4px;
    background:linear-gradient(90deg,var(--primary),var(--accent));
    opacity:0;
    transition:var(--transition);
}
.feature-card:hover{
    background:#fff;
    transform:translateY(-6px);
    box-shadow:var(--shadow-hover);
    border-color:transparent;
}
.feature-card:hover::before{opacity:1}
.feature-icon{
    width:64px;
    height:64px;
    margin:0 auto 20px;
    border-radius:18px;
    background:linear-gradient(135deg,var(--primary),var(--primary-light));
    color:var(--accent-light);
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:26px;
    box-shadow:0 8px 20px rgba(22,43,71,.18);
    transition:var(--transition);
}
.feature-card:hover .feature-icon{
    transform:rotate(-6deg) scale(1.05);
    background:linear-gradient(135deg,var(--accent),var(--accent-dark));
    color:#fff;
}
.feature-card h3{
    font-size:18px;
    font-weight:700;
    color:var(--primary);
    margin-bottom:12px;
}
.feature-card p{font-size:14px;color:var(--text-light);line-height:1.75}
/* ===== Flow Steps ===== */
.flow-section{background:var(--bg)}
.flow-steps .columns{padding:15px}
.flow-step{
    position:relative;
    background:#fff;
    border:1px solid var(--border);
    border-radius:var(--radius);
    padding:36px 28px 32px;
    height:100%;
    text-align:center;
    transition:var(--transition);
    z-index:1;
}
.flow-step:hover{
    box-shadow:var(--shadow-hover);
    border-color:rgba(201,163,92,.3);
    transform:translateY(-4px);
}
.step-num{
    position:absolute;
    top:-14px;
    left:50%;
    transform:translateX(-50%);
    background:var(--primary);
    color:#fff;
    font-size:12px;
    font-weight:800;
    padding:4px 16px;
    border-radius:20px;
    box-shadow:0 4px 12px rgba(22,43,71,.25);
    z-index:2;
}
.step-icon{
    width:56px;
    height:56px;
    margin:0 auto 18px;
    border-radius:50%;
    background:rgba(201,163,92,.12);
    color:var(--accent-dark);
    display:flex;
    align-items:center;
    justify-content:center;
    font-size:22px;
    transition:var(--transition);
}
.flow-step:hover .step-icon{
    background:var(--accent);
    color:#fff;
    transform:scale(1.08);
}
.flow-step h3{
    font-size:17px;
    font-weight:700;
    color:var(--primary);
    margin-bottom:10px;
}
.flow-step p{font-size:14px;color:var(--text-light);line-height:1.75}
/* ===== Stats ===== */
.stats-section{
    background:linear-gradient(135deg,var(--primary-dark),var(--primary-light));
    padding:70px 0;
    position:relative;
    overflow:hidden;
}
.stats-section::before{
    content:'';
    position:absolute;
    inset:0;
    background-image:radial-gradient(circle at 20% 50%,rgba(201,163,92,.08),transparent 40%);
}
.stats-grid .columns{padding:20px;text-align:center}
.stat-num{
    font-size:44px;
    font-weight:800;
    color:var(--accent-light);
    line-height:1.2;
    margin-bottom:6px;
    letter-spacing:-.5px;
}
.stat-label{
    font-size:15px;
    color:rgba(255,255,255,.8);
    letter-spacing:1px;
}
/* ===== Guide List ===== */
.hot-guides{background:var(--bg-white)}
.guide-list{
    background:#fff;
    border-radius:var(--radius);
    border:1px solid var(--border);
    padding:8px 24px;
    box-shadow:var(--shadow);
}
.guide-list-item{
    display:flex;
    gap:24px;
    padding:24px 0;
    border-bottom:1px solid var(--border);
    transition:var(--transition);
}
.guide-list-item:last-child{border-bottom:none}
.guide-list-item:hover{background:var(--bg);border-radius:12px}
.guide-list-thumb{
    flex:0 0 220px;
    height:140px;
    border-radius:12px;
    overflow:hidden;
    position:relative;
}
.guide-list-thumb img{
    width:100%;
    height:100%;
    object-fit:cover;
    transition:transform .5s ease;
}
.guide-list-item:hover .guide-list-thumb img{transform:scale(1.05)}
.guide-list-content{flex:1;display:flex;flex-direction:column;justify-content:center}
.guide-list-meta{
    display:flex;
    align-items:center;
    gap:14px;
    margin-bottom:8px;
    flex-wrap:wrap;
}
.guide-list-time{
    font-size:13px;
    color:var(--text-light);
    display:inline-flex;
    align-items:center;
    gap:5px;
}
.guide-list-content h3{font-size:19px;font-weight:700;margin-bottom:6px}
.guide-list-content h3 a{color:var(--primary)}
.guide-list-content h3 a:hover{color:var(--accent-dark)}
.guide-list-content p{
    font-size:14px;
    color:var(--text-light);
    line-height:1.7;
    margin-bottom:10px;
}
.guide-list-footer{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:12px;
    flex-wrap:wrap;
    margin-top:auto;
}
.guide-list-views{
    font-size:13px;
    color:var(--text-light);
    display:inline-flex;
    align-items:center;
    gap:5px;
}
.text-link{
    display:inline-flex;
    align-items:center;
    gap:8px;
    font-size:14px;
    font-weight:700;
    color:var(--accent-dark);
}
.text-link i{font-size:12px;transition:transform .3s}
.text-link:hover{color:var(--accent)}
.text-link:hover i{transform:translateX(4px)}
/* ===== FAQ ===== */
.faq-section{background:var(--bg)}
.faq-accordion{
    background:#fff;
    border:1px solid var(--border);
    border-radius:var(--radius);
    box-shadow:var(--shadow);
    padding:8px 24px;
}
.faq-accordion .accordion-item{
    border-bottom:1px solid var(--border);
}
.faq-accordion .accordion-item:last-child{border-bottom:none}
.faq-accordion .accordion-title{
    padding:22px 10px;
    background:transparent;
    color:var(--text);
    font-size:16px;
    font-weight:600;
    line-height:1.5;
    position:relative;
    transition:var(--transition);
}
.faq-accordion .accordion-title:hover{
    color:var(--accent-dark);
    background:var(--bg);
}
.faq-accordion .accordion-item.is-active .accordion-title{
    color:var(--accent-dark);
    background:var(--bg);
}
.faq-accordion .accordion-title::before,
.faq-accordion .accordion-title::after{
    content:'';
    position:absolute;
    right:22px;
    top:50%;
    width:14px;
    height:2px;
    background:var(--accent);
    transition:var(--transition);
}
.faq-accordion .accordion-title::after{transform:rotate(90deg)}
.faq-accordion .accordion-item.is-active .accordion-title::after{transform:rotate(0deg);opacity:0}
.faq-accordion .accordion-content{
    background:var(--bg);
    border-top:1px solid var(--border);
    padding:20px 24px;
    color:var(--text-light);
    font-size:15px;
    line-height:1.8;
}
.faq-q{
    display:flex;
    align-items:center;
    gap:12px;
}
.faq-q i{
    font-size:10px;
    color:var(--accent);
    flex-shrink:0;
}
/* ===== CTA ===== */
.cta-section{padding:80px 0;background:var(--bg-white)}
.cta-box{
    border-radius:24px;
    background:linear-gradient(135deg,rgba(14,30,51,.9),rgba(31,58,95,.78)),url('/assets/images/backpic/back-3.png') center/cover no-repeat;
    padding:72px 48px;
    text-align:center;
    position:relative;
    overflow:hidden;
    box-shadow:var(--shadow-lg);
}
.cta-box::before{
    content:'';
    position:absolute;
    top:-40%;
    left:-10%;
    width:350px;
    height:350px;
    background:radial-gradient(circle,rgba(201,163,92,.2),transparent 70%);
    pointer-events:none;
}
.cta-inner{
    max-width:680px;
    margin:0 auto;
    position:relative;
    z-index:2;
}
.cta-inner h2{
    color:#fff;
    font-size:34px;
    font-weight:800;
    margin-bottom:14px;
    letter-spacing:-.5px;
}
.cta-inner p{
    color:rgba(255,255,255,.8);
    font-size:16px;
    line-height:1.8;
    margin-bottom:30px;
}
.cta-actions{display:flex;gap:16px;justify-content:center;flex-wrap:wrap}
/* ===== Footer ===== */
.site-footer{
    background:var(--primary-dark);
    color:rgba(255,255,255,.75);
    padding:72px 0 28px;
}
.footer-grid{
    display:grid;
    grid-template-columns:1.4fr 1fr 1fr;
    gap:44px;
    padding-bottom:44px;
    border-bottom:1px solid rgba(255,255,255,.08);
}
.footer-about p{
    margin-top:16px;
    font-size:14px;
    line-height:1.9;
    max-width:380px;
    color:rgba(255,255,255,.65);
}
.footer-links h4{
    color:#fff;
    font-size:16px;
    font-weight:700;
    margin-bottom:18px;
}
.footer-links ul li{
    margin-bottom:10px;
}
.footer-links ul li a{
    color:rgba(255,255,255,.65);
    font-size:14px;
    transition:var(--transition);
}
.footer-links ul li a:hover{
    color:var(--accent-light);
    padding-left:4px;
}
.footer-bottom{
    padding-top:26px;
    text-align:center;
    font-size:13px;
    color:rgba(255,255,255,.45);
}
/* ===== Responsive ===== */
@media screen and (max-width:1024px){
    .section{padding:70px 0}
    .banner-content h1{font-size:36px}
    .guide-list-thumb{flex:0 0 180px;height:120px}
    .footer-grid{grid-template-columns:1fr 1fr}
    .header-inner{gap:16px}
}
@media screen and (max-width:768px){
    .header-inner{
        flex-wrap:wrap;
        height:auto;
        padding:14px 0;
        position:relative;
    }
    .site-logo{order:1}
    .header-search{
        order:3;
        max-width:100%;
        flex-basis:100%;
        margin-top:10px;
        padding:0 0 0 2px;
    }
    .site-nav{
        display:none;
        flex-direction:column;
        width:100%;
        order:4;
        background:#fff;
        padding:14px 0 18px;
        gap:6px;
        border-top:1px solid var(--border);
        margin-top:12px;
    }
    .site-nav.open{display:flex}
    .site-nav a{
        padding:12px 18px;
        width:100%;
        border-radius:10px;
        font-size:15px;
    }
    .nav-toggle{
        display:flex;
        order:2;
    }
    .banner-content h1{font-size:30px}
    .banner-content p{font-size:15px}
    .section-head h2{font-size:28px}
    .stats-grid .columns{padding:14px}
    .stat-num{font-size:36px}
    .guide-list-item{flex-direction:column;gap:16px}
    .guide-list-thumb{
        flex:0 0 100%;
        height:170px;
        width:100%;
    }
    .cta-box{padding:50px 24px}
    .cta-inner h2{font-size:28px}
    .footer-grid{grid-template-columns:1fr;gap:34px}
    .footer-about p{max-width:100%}
    .section{padding:60px 0}
}
@media screen and (max-width:520px){
    .container{padding:0 16px}
    .banner-content h1{font-size:26px}
    .page-banner{padding:80px 0 72px}
    .banner-actions{flex-direction:column;align-items:flex-start}
    .btn{width:100%}
    .section-head h2{font-size:24px}
    .section-tag{font-size:12px;padding:5px 14px}
    .guide-card-body{padding:18px 20px}
    .feature-card{padding:26px 20px}
    .flow-step{padding:32px 20px}
    .stat-num{font-size:32px}
    .faq-accordion{padding:0 16px}
    .faq-accordion .accordion-title{
        padding:18px 30px 18px 8px;
        font-size:15px;
    }
    .faq-accordion .accordion-content{padding:16px}
    .footer-grid{grid-template-columns:1fr}
    .footer-links ul li a:hover{padding-left:0}
    .cta-actions{flex-direction:column}
}

/* roulang page: category2 */
:root {
  --primary: #2563eb;
  --primary-dark: #1e40af;
  --primary-light: #dbeafe;
  --primary-grad: linear-gradient(135deg, #2563eb 0%, #7c3aed 100%);
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-soft: #eef2f7;
  --text: #1e293b;
  --text-weak: #64748b;
  --border: #e2e8f0;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 2px 8px rgba(30, 41, 59, 0.06);
  --shadow: 0 10px 30px rgba(30, 41, 59, 0.08);
  --shadow-lg: 0 24px 50px rgba(30, 41, 59, 0.12);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-family);
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
}
img { max-width: 100%; height: auto; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
ul, ol { list-style: none; }
input, button, select, textarea { font-family: inherit; font-size: inherit; color: inherit; border: none; outline: none; background: none; }
button { cursor: pointer; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section-padding { padding: 84px 0; }

/* 分类页头部横幅 */
.page-banner {
  background: linear-gradient(135deg, #0f172a 0%, #1e3a8a 55%, #7c3aed 100%);
  position: relative;
  padding: 90px 0 80px;
  overflow: hidden;
  color: #fff;
}
.page-banner::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.28;
  z-index: 0;
}
.page-banner::after {
  content: "";
  position: absolute;
  bottom: -60%;
  left: -20%;
  width: 70%;
  height: 160%;
  background: radial-gradient(circle at center, rgba(255,255,255,0.14) 0%, transparent 64%);
  z-index: 0;
}
.page-banner .container { position: relative; z-index: 2; }
.page-banner .banner-breadcrumb { display: flex; align-items: center; gap: 10px; font-size: 14px; color: rgba(255,255,255,0.8); margin-bottom: 22px; font-weight: 500; }
.page-banner .banner-breadcrumb a { color: rgba(255,255,255,0.8); }
.page-banner .banner-breadcrumb a:hover { color: #fff; }
.page-banner .banner-breadcrumb .sep { opacity: 0.5; }
.page-banner h1 { font-size: 44px; font-weight: 800; line-height: 1.3; letter-spacing: -0.02em; margin-bottom: 16px; }
.page-banner p { font-size: 18px; max-width: 680px; color: rgba(255,255,255,0.88); line-height: 1.7; }
.page-banner .banner-tags { margin-top: 26px; display: flex; flex-wrap: wrap; gap: 10px; }
.page-banner .banner-tags span {
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.22);
  border-radius: 40px;
  padding: 6px 16px;
  font-size: 13px;
  font-weight: 500;
  backdrop-filter: blur(6px);
}
.banner-shape { position: absolute; right: -100px; top: -100px; width: 360px; height: 360px; border-radius: 50%; background: rgba(255,255,255,0.05); z-index: 1; border: 2px solid rgba(255,255,255,0.08); }
.banner-shape::before { content: ""; position: absolute; inset: 40px; border-radius: 50%; background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.1); }
.banner-shape::after { content: ""; position: absolute; inset: 90px; border-radius: 50%; background: rgba(255,255,255,0.12); }

/* 站点导航 */
.site-header {
  background: rgba(255,255,255,0.94);
  backdrop-filter: saturate(180%) blur(16px);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid rgba(226,232,240,0.8);
  box-shadow: 0 2px 16px rgba(30,41,59,0.04);
}
.header-inner { display: flex; align-items: center; gap: 28px; height: 76px; }
.site-logo { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.logo-badge {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: var(--primary-grad);
  border-radius: 12px;
  color: #fff;
  font-size: 18px;
  box-shadow: 0 6px 16px rgba(37,99,235,0.26);
}
.logo-text { font-size: 20px; font-weight: 800; letter-spacing: -0.02em; color: var(--text); white-space: nowrap; }
.logo-text span { color: var(--primary); }
.header-search { flex: 1; max-width: 500px; position: relative; }
.header-search .search-form { display: flex; align-items: center; background: var(--surface-soft); border-radius: 40px; height: 44px; padding: 0 6px 0 18px; border: 1px solid transparent; transition: var(--transition); }
.header-search .search-form:focus-within { background: #fff; border-color: var(--primary); box-shadow: 0 0 0 4px rgba(37,99,235,0.12); }
.header-search input { flex: 1; height: 100%; background: transparent; font-size: 14px; color: var(--text); }
.header-search input::placeholder { color: #94a3b8; }
.header-search button {
  width: 36px; height: 36px; border-radius: 50%;
  background: var(--primary); color: #fff;
  display: flex; align-items: center; justify-content: center;
  font-size: 14px; transition: var(--transition); flex-shrink: 0;
}
.header-search button:hover { background: var(--primary-dark); transform: scale(1.04); }
.site-nav { display: flex; align-items: center; gap: 6px; margin-left: auto; }
.site-nav a {
  padding: 10px 18px;
  border-radius: 40px;
  font-size: 15px;
  font-weight: 600;
  color: #475569;
  transition: var(--transition);
  line-height: 1.2;
}
.site-nav a:hover { background: var(--primary-light); color: var(--primary); }
.site-nav a.active { background: var(--primary-grad); color: #fff; box-shadow: 0 4px 14px rgba(37,99,235,0.3); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; padding: 10px; border-radius: 8px; }
.nav-toggle span { width: 22px; height: 2px; background: var(--text); border-radius: 4px; transition: var(--transition); }
.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); }

/* 板块标题 */
.section-head { margin-bottom: 42px; max-width: 680px; }
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
.section-head .eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  background: var(--primary-light); color: var(--primary);
  font-size: 13px; font-weight: 700; letter-spacing: 0.04em;
  padding: 6px 16px; border-radius: 40px; margin-bottom: 16px;
}
.section-head h2 { font-size: 34px; font-weight: 800; line-height: 1.3; letter-spacing: -0.02em; margin-bottom: 12px; }
.section-head p { font-size: 16px; color: var(--text-weak); line-height: 1.7; }

/* 功能解读卡片 */
.feature-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card {
  background: var(--surface);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 34px 30px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.feature-card::before {
  content: "";
  position: absolute; top: 0; left: 0; width: 100%; height: 4px;
  background: var(--primary-grad);
  opacity: 0;
  transition: var(--transition);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); border-color: rgba(37,99,235,0.25); }
.feature-card:hover::before { opacity: 1; }
.feature-card .icon-wrap {
  width: 56px; height: 56px;
  display: flex; align-items: center; justify-content: center;
  background: var(--primary-light); border-radius: 14px;
  font-size: 22px; color: var(--primary);
  margin-bottom: 22px;
  transition: var(--transition);
}
.feature-card:hover .icon-wrap { background: var(--primary-grad); color: #fff; box-shadow: 0 8px 20px rgba(37,99,235,0.3); }
.feature-card h3 { font-size: 19px; font-weight: 700; margin-bottom: 10px; }
.feature-card p { font-size: 14px; color: var(--text-weak); line-height: 1.75; }

/* 入门步骤时间线 */
.steps-section { position: relative; }
.steps-section .container { position: relative; z-index: 3; }
.steps-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, #f1f5f9 0%, #e0eaff 100%);
  z-index: 0;
}
.steps-bg::after {
  content: ""; position: absolute; inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.08;
}
.steps-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; }
.step-item { text-align: center; padding: 34px 18px; position: relative; }
.step-item::before {
  content: "";
  position: absolute;
  top: 62px; right: 50%;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), rgba(37,99,235,0.15));
  z-index: 0;
}
.step-item:last-child::before { display: none; }
.step-num {
  width: 64px; height: 64px;
  display: inline-flex; align-items: center; justify-content: center;
  background: var(--surface);
  border-radius: 50%;
  font-size: 22px; font-weight: 800;
  color: var(--primary);
  border: 2px solid var(--primary);
  margin-bottom: 22px;
  position: relative;
  z-index: 1;
  box-shadow: 0 0 0 8px rgba(255,255,255,0.8);
}
.step-item:hover .step-num { background: var(--primary-grad); color: #fff; border-color: transparent; box-shadow: 0 8px 24px rgba(37,99,235,0.3); }
.step-item h3 { font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.step-item p { font-size: 14px; color: var(--text-weak); line-height: 1.7; max-width: 220px; margin: 0 auto; }

/* 安全须知 */
.security-section { background: #0f172a; position: relative; overflow: hidden; }
.security-section .container { position: relative; z-index: 3; }
.security-section .section-head h2 { color: #fff; }
.security-section .section-head p { color: rgba(255,255,255,0.7); }
.security-section .section-head .eyebrow { background: rgba(37,99,235,0.25); color: #93c5fd; }
.security-bg { position: absolute; inset: 0; background-image: url('/assets/images/backpic/back-3.png'); background-size: cover; background-position: center; opacity: 0.12; }
.security-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.security-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 30px 28px;
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.security-card:hover { background: rgba(255,255,255,0.1); border-color: rgba(255,255,255,0.2); transform: translateY(-4px); }
.security-card .icon-wrap {
  width: 50px; height: 50px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(37,99,235,0.3);
  border-radius: 12px;
  font-size: 20px; color: #93c5fd;
  margin-bottom: 20px;
}
.security-card h3 { color: #fff; font-size: 18px; font-weight: 700; margin-bottom: 10px; }
.security-card p { color: rgba(255,255,255,0.7); font-size: 14px; line-height: 1.7; }

/* FAQ */
.faq-list { max-width: 860px; margin: 0 auto; display: flex; flex-direction: column; gap: 16px; }
.faq-item {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(37,99,235,0.2); box-shadow: var(--shadow-sm); }
.faq-item input { position: absolute; opacity: 0; }
.faq-item label {
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 26px;
  font-size: 16px; font-weight: 600;
  cursor: pointer;
  gap: 16px;
}
.faq-item label::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 14px;
  color: var(--primary);
  transition: var(--transition);
  flex-shrink: 0;
}
.faq-item .faq-answer { max-height: 0; overflow: hidden; transition: max-height 0.4s ease; }
.faq-item .faq-answer p { padding: 0 26px 24px; font-size: 14px; color: var(--text-weak); line-height: 1.75; }
.faq-item input:checked + label::after { transform: rotate(180deg); }
.faq-item input:checked ~ .faq-answer { max-height: 300px; }

/* CTA 区块 */
.cta-section { position: relative; }
.cta-box {
  background: var(--primary-grad);
  border-radius: 28px;
  padding: 58px 60px;
  text-align: center;
  position: relative;
  overflow: hidden;
  color: #fff;
}
.cta-box::before {
  content: "";
  position: absolute; top: -80px; right: -40px;
  width: 300px; height: 300px; border-radius: 50%;
  background: rgba(255,255,255,0.08);
}
.cta-box::after {
  content: "";
  position: absolute; bottom: -100px; left: -40px;
  width: 280px; height: 280px; border-radius: 50%;
  background: rgba(255,255,255,0.06);
}
.cta-box h2 { font-size: 30px; font-weight: 800; margin-bottom: 12px; position: relative; z-index: 2; }
.cta-box p { font-size: 16px; color: rgba(255,255,255,0.9); max-width: 560px; margin: 0 auto 30px; position: relative; z-index: 2; }
.cta-btns { display: flex; justify-content: center; gap: 16px; position: relative; z-index: 2; }
.btn-primary, .btn-outline { display: inline-flex; align-items: center; gap: 10px; padding: 14px 30px; border-radius: 40px; font-size: 15px; font-weight: 700; transition: var(--transition); line-height: 1.2; }
.btn-primary { background: #fff; color: var(--primary); box-shadow: 0 8px 24px rgba(0,0,0,0.12); }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px rgba(0,0,0,0.18); }
.btn-outline { border: 2px solid rgba(255,255,255,0.7); color: #fff; }
.btn-outline:hover { background: rgba(255,255,255,0.14); border-color: #fff; transform: translateY(-2px); }

/* 页脚 */
.site-footer {
  background: #0f172a;
  color: #94a3b8;
  padding: 70px 0 0;
  margin-top: 0;
}
.site-footer a { color: #94a3b8; }
.site-footer a:hover { color: #fff; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 50px;
}
.footer-about .site-logo { margin-bottom: 18px; }
.footer-about p { font-size: 14px; line-height: 1.8; max-width: 360px; margin-top: 14px; }
.footer-links h4 {
  color: #fff; font-size: 16px; font-weight: 700;
  margin-bottom: 20px; position: relative; padding-bottom: 12px;
}
.footer-links h4::after {
  content: "";
  position: absolute; left: 0; bottom: 0;
  width: 28px; height: 3px; border-radius: 4px;
  background: var(--primary-grad);
}
.footer-links ul li { margin-bottom: 12px; }
.footer-links a { font-size: 14px; display: inline-flex; align-items: center; gap: 8px; transition: var(--transition); }
.footer-links a::before { content: "\f105"; font-family: "Font Awesome 6 Free"; font-weight: 900; font-size: 12px; color: var(--primary); }
.footer-links a:hover { padding-left: 4px; color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 24px 0;
  text-align: center;
  font-size: 13px;
  color: #64748b;
}
.footer-bottom p { display: flex; align-items: center; justify-content: center; gap: 8px; flex-wrap: wrap; }

/* 响应式 */
@media (max-width: 1024px) {
  .header-inner { gap: 18px; }
  .header-search { max-width: 360px; }
  .site-nav a { padding: 10px 12px; font-size: 14px; }
  .feature-grid { grid-template-columns: repeat(2, 1fr); gap: 22px; }
  .steps-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .step-item::before { display: none; }
  .security-grid { grid-template-columns: repeat(2, 1fr); gap: 20px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 768px) {
  .section-padding { padding: 60px 0; }
  .page-banner { padding: 60px 0 54px; }
  .page-banner h1 { font-size: 32px; }
  .header-inner { height: auto; padding: 14px 0; flex-wrap: wrap; }
  .site-logo { margin-right: auto; }
  .nav-toggle { display: flex; flex: 0 0 auto; }
  .header-search { order: 3; flex: 1 0 100%; max-width: none; margin-top: 6px; }
  .site-nav {
    display: none;
    flex: 1 0 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 14px 0 6px;
    background: #fff;
  }
  .site-nav.open { display: flex; }
  .site-nav a { border-radius: 10px; text-align: center; padding: 12px; }
  .section-head h2 { font-size: 26px; }
  .feature-grid { grid-template-columns: 1fr; gap: 18px; }
  .steps-grid { grid-template-columns: 1fr; gap: 24px; }
  .security-grid { grid-template-columns: 1fr; gap: 16px; }
  .cta-box { padding: 36px 24px; }
  .cta-box h2 { font-size: 22px; }
  .cta-btns { flex-direction: column; align-items: center; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
}

@media (max-width: 520px) {
  .container { padding: 0 18px; }
  .logo-text { font-size: 17px; }
  .logo-badge { width: 36px; height: 36px; font-size: 16px; border-radius: 10px; }
  .header-search .show-for-large { display: none !important; }
  .page-banner h1 { font-size: 27px; }
  .page-banner p { font-size: 15px; }
  .section-head h2 { font-size: 23px; }
  .feature-card { padding: 26px 22px; }
  .faq-item label { font-size: 14px; padding: 18px 18px; }
  .faq-item .faq-answer p { font-size: 13px; padding: 0 18px 18px; }
  .btn-primary, .btn-outline { padding: 12px 22px; }
}

/* 小补丁 */
::selection { background: rgba(37,99,235,0.2); }
a:focus-visible, button:focus-visible, input:focus-visible { outline: 3px solid rgba(37,99,235,0.45); outline-offset: 2px; border-radius: 6px; }