/* roulang page: index */
:root{
  --primary:#2D6FF0;
  --primary-dark:#1655B8;
  --primary-light:#EDF4FF;
  --mint:#19B89D;
  --amber:#F5A623;
  --amber-dark:#E0900C;
  --bg:#F5F7FB;
  --card-bg:#FFFFFF;
  --text-main:#2B3A4A;
  --text-secondary:#6B7A8C;
  --border:#E3EAF2;
  --radius-lg:16px;
  --radius-md:8px;
  --radius-sm:6px;
  --shadow-card:0 4px 16px rgba(23,55,93,.06);
  --shadow-hover:0 12px 28px rgba(23,55,93,.10);
  --shadow-hero:0 20px 40px rgba(23,55,93,.08);
  --transition:all .25s ease;
}

*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text-main);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:var(--primary);text-decoration:none;transition:var(--transition)}
a:hover{color:var(--primary-dark)}
img{max-width:100%;height:auto;display:block}
button,input,textarea,select{font-family:inherit;font-size:inherit}
ul,ol{padding-left:0;margin-top:0;margin-bottom:0}
.container{max-width:1200px;padding-left:16px;padding-right:16px}
.section{padding:80px 0}
.section-pale{background:#fff}
.section-muted{background:var(--bg)}
.section-heading{margin-bottom:40px}
.section-title{font-size:30px;line-height:1.4;font-weight:700;margin:0 0 10px;color:var(--text-main)}
.section-sub{font-size:16px;color:var(--text-secondary);max-width:760px;margin:0}
.section-title-center{text-align:center}
.section-sub-center{margin-left:auto;margin-right:auto;text-align:center}

/* btn system */
.btn{border-radius:8px;padding:11px 24px;font-weight:600;display:inline-flex;align-items:center;justify-content:center;gap:8px;border:1px solid transparent;line-height:1.4;transition:var(--transition);min-height:44px;text-decoration:none}
.btn-sm{min-height:38px;padding:7px 16px;font-size:14px;border-radius:8px}
.btn-amber{background:var(--amber);border-color:var(--amber);color:#2B2320;box-shadow:0 6px 16px rgba(245,166,35,.22)}
.btn-amber:hover,.btn-amber:focus{background:var(--amber-dark);border-color:var(--amber-dark);color:#fff}
.btn-primary{background:var(--primary);border-color:var(--primary);color:#fff}
.btn-primary:hover,.btn-primary:focus{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff}
.btn-outline{background:#fff;border:1px solid #D8E1ED;color:var(--primary)}
.btn-outline:hover{background:var(--primary-light);border-color:var(--primary);color:var(--primary-dark)}
.btn:focus-visible,.btn-primary:focus-visible,.btn-amber:focus-visible,.btn-outline:focus-visible{outline:3px solid rgba(45,111,240,.35);outline-offset:2px;box-shadow:none}

/* header */
.site-header{
  position:sticky;top:0;z-index:1030;background:#fff;border-bottom:1px solid var(--border);
  transition:box-shadow .3s ease;
}
.site-header.header-stuck{box-shadow:0 4px 18px rgba(23,55,93,.06)}
.header-top{border-bottom:1px solid #EEF2F7;background:#fff}
.header-top .container{display:flex;align-items:center;justify-content:space-between;gap:12px;min-height:50px;padding:6px 16px}
.brand-group{display:flex;align-items:center;gap:10px;min-width:0}
.brand-text{font-size:20px;font-weight:700;color:var(--text-main);line-height:1.3;white-space:nowrap}
.brand-text:hover{color:var(--primary)}
.brand-domain{font-size:12px;font-weight:400;line-height:1;background:#F1F5FB;border:1px solid var(--border);color:var(--text-secondary);padding:4px 8px;border-radius:999px;letter-spacing:.2px;white-space:nowrap}
.header-top-right{display:flex;align-items:center;gap:12px;color:var(--text-secondary);font-size:13px}
.header-top-right .secure-badge{display:inline-flex;align-items:center;gap:5px;color:var(--mint);font-weight:600}
.header-top-right .header-date{color:#526272;background:#F5F7FB;border:1px solid var(--border);border-radius:999px;padding:3px 10px;white-space:nowrap}
.top-login-btn{display:inline-flex;align-items:center;gap:6px;font-weight:600;color:var(--primary);font-size:14px;padding:5px 0}
.top-login-btn:hover{color:var(--primary-dark)}
.header-navbar .container{display:flex;align-items:center;justify-content:space-between;min-height:58px;gap:12px;padding-top:4px;padding-bottom:4px}
.main-nav{display:none;align-items:center;gap:2px}
.nav-item{display:inline-flex;align-items:center;height:36px;padding:0 14px;border-radius:8px;color:#3A4A5A;font-weight:600;font-size:15px;transition:var(--transition)}
.nav-item:hover{background:var(--primary-light);color:var(--primary)}
.nav-item.active{background:var(--primary);color:#fff}
.nav-tools{display:none;align-items:center;gap:10px}
.header-search{display:flex;align-items:center;background:#F5F7FB;border:1px solid var(--border);border-radius:999px;padding:3px;gap:4px;width:230px;height:36px;transition:var(--transition)}
.header-search:focus-within{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(45,111,240,.12)}
.header-search-input{flex:1;min-width:0;border:0;background:transparent;padding:0 12px;color:var(--text-main);outline:none;font-size:14px}
.header-search-btn{width:28px;height:28px;border:0;border-radius:50%;background:var(--primary);color:#fff;display:inline-flex;align-items:center;justify-content:center;cursor:pointer;flex-shrink:0;line-height:1}
.header-search-btn i{font-size:14px}
.hotword-wrap{display:flex;align-items:center;gap:6px;flex-wrap:nowrap;overflow:hidden}
.hotword{display:inline-flex;align-items:center;background:#F0F5FF;border:1px solid transparent;border-radius:999px;font-size:12px;font-weight:500;padding:4px 10px;color:var(--primary);white-space:nowrap}
.hotword:hover{background:var(--primary);color:#fff;border-color:var(--primary)}
.nav-login-cta{width:auto;flex-shrink:0}
.mobile-nav-trigger{display:flex;align-items:center}
.hamburger{width:42px;height:42px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);background:#fff;border-radius:10px;color:var(--text-main);cursor:pointer}
.hamburger i{font-size:22px}
.hamburger:focus-visible,.header-search-btn:focus-visible,.btn:focus-visible,.form-control:focus-visible{outline:3px solid rgba(45,111,240,.35);outline-offset:1px}

/* mobile drawer */
.mobile-drawer{background:#fff}
.mobile-drawer .offcanvas-header{background:#fff;border-bottom:1px solid var(--border)}
.offcanvas-close{width:40px;height:40px;border:1px solid var(--border);background:#fff;border-radius:10px;color:var(--text-main);font-size:20px}
.mobile-drawer-search{display:flex;border:1px solid var(--border);background:#F5F7FB;border-radius:999px;align-items:center;height:42px;padding:0 6px 0 14px;margin-bottom:20px}
.mobile-drawer-search input{border:0;background:transparent;outline:none;flex:1;font-size:14px;color:var(--text-main)}
.mobile-drawer-search button{width:30px;height:30px;border:0;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center}
.mobile-drawer-nav{display:flex;flex-direction:column;gap:8px;margin-bottom:24px}
.mobile-drawer-nav a{display:flex;align-items:center;gap:10px;padding:12px 14px;border-radius:10px;background:#fff;border:1px solid var(--border);color:var(--text-main);font-weight:600}
.mobile-drawer-nav a.active{background:var(--primary-light);border-color:var(--primary);color:var(--primary)}
.mobile-drawer-sub{font-size:13px;color:var(--text-secondary);margin-bottom:8px}

/* Hero */
.hero-section{
  position:relative;
  overflow:hidden;
  background:linear-gradient(155deg,#F9FBFE 0%,#F1F6FF 65%,#E9F1FF 100%);
  padding:48px 0 36px;
}
.hero-grid{display:grid;grid-template-columns:1.05fr .95fr;gap:42px;align-items:center}
.hero-eyebrow{display:inline-flex;align-items:center;gap:8px;background:rgba(45,111,240,.10);border:1px solid rgba(45,111,240,.18);color:var(--primary);font-size:13px;font-weight:600;border-radius:999px;padding:6px 14px;margin-bottom:18px}
.hero-eyebrow i{font-size:14px}
.hero-title{font-size:40px;line-height:1.3;font-weight:700;letter-spacing:.5px;margin:0 0 20px;color:#10243C}
.hero-title span{color:var(--primary)}
.hero-lead{font-size:17px;color:#526272;line-height:1.9;max-width:560px;margin:0 0 26px}
.hero-actions{display:flex;flex-wrap:wrap;gap:12px;margin-bottom:28px}
.hero-trust-list{display:flex;flex-wrap:wrap;gap:16px;list-style:none;margin:0;padding:0}
.hero-trust-list li{display:inline-flex;align-items:center;gap:5px;font-size:14px;color:var(--text-secondary)}
.hero-trust-list i{color:var(--mint);font-size:15px}

.login-panel-demo{width:100%;max-width:460px;background:#fff;border:1px solid var(--border);border-radius:20px;box-shadow:var(--shadow-hero);overflow:hidden;margin-left:auto;margin-right:auto}
.panel-top{display:flex;align-items:center;justify-content:space-between;background:#F8FBFF;border-bottom:1px solid var(--border);padding:12px 18px}
.panel-top i{color:var(--mint)}
.panel-top .secure-text{display:inline-flex;align-items:center;gap:6px;color:var(--mint);font-size:13px;font-weight:600}
.panel-top .bar-dots{display:flex;gap:5px}
.panel-top .bar-dots span{width:10px;height:10px;border-radius:50%;background:#D7E1ED}
.panel-top .bar-dots span:first-child{background:#FF9F9F}
.panel-top .bar-dots span:nth-child(2){background:#F5C876}
.panel-top .bar-dots span:last-child{background:#92E0C8}
.panel-body{padding:24px 26px 26px}
.panel-body .demo-brand{display:flex;align-items:center;justify-content:center;gap:8px;margin-bottom:7px}
.panel-logo{font-weight:700;font-size:18px;color:var(--text-main);text-align:center}
.panel-domain-badge{font-size:11px;background:#F1F5FB;border:1px solid var(--border);color:var(--text-secondary);border-radius:999px;padding:2px 8px;text-align:center;font-weight:400}
.panel-sub{font-size:13px;color:var(--text-secondary);text-align:center;margin-bottom:22px}
.demo-field{margin-bottom:16px}
.demo-field label{display:block;font-size:14px;color:var(--text-main);font-weight:600;margin-bottom:7px}
.input-icon-wrap{position:relative;display:flex;align-items:center}
.input-icon-wrap i{position:absolute;left:13px;color:#9AAAB8;font-size:15px;pointer-events:none}
.input-icon-wrap .form-control{padding-left:38px}
.input-icon-wrap .form-eye{position:absolute;right:12px;left:auto;color:#9AAAB8;font-size:16px;cursor:pointer}
.demo-field .form-control{background:#fff;border:1px solid #D0DCE9;border-radius:8px;padding:11px 14px;height:44px;color:var(--text-main);font-size:15px;box-shadow:none}
.demo-field .form-control:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 3px rgba(45,111,240,.12)}
.demo-login-btn{width:100%;height:46px;font-size:15px;border-radius:8px;margin-top:8px}
.demo-login-btn i{font-size:17px}
.demo-note{text-align:center;font-size:12px;color:#A3B1C0;margin-top:12px;background:#F7F9FC;border-radius:8px;padding:7px 10px}

.hero-stat-band{margin-top:44px;background:#fff;border:1px solid var(--border);border-radius:16px;padding:18px 24px;box-shadow:var(--shadow-card)}
.stat-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:14px}
.stat-item{text-align:center;border-left:1px solid var(--border);padding:6px 8px}
.stat-item:first-child{border-left:0}
.stat-value{font-size:28px;font-weight:700;color:var(--text-main);letter-spacing:.3px}
.stat-value small{font-size:14px;color:var(--text-secondary);font-weight:400}
.stat-label{font-size:13px;color:var(--text-secondary);line-height:1.4;margin-top:2px}

/* value area */
.value-list{display:grid;gap:28px;margin-top:12px}
.value-item{display:flex;align-items:center;gap:48px;background:#fff;border-radius:20px;padding:34px;box-shadow:var(--shadow-card);transition:var(--transition);border:1px solid rgba(255,255,255,0)}
.value-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.value-item.reversed{flex-direction:row-reverse}
.value-media{flex:0 0 46%;overflow:hidden;border-radius:16px;min-height:220px;background:#EAF2FF}
.value-media img{width:100%;height:100%;object-fit:cover;min-height:240px;max-height:300px}
.value-body{flex:1}
.value-icon{width:50px;height:50px;border-radius:14px;background:var(--primary-light);color:var(--primary);display:flex;align-items:center;justify-content:center;font-size:24px;margin-bottom:18px}
.value-body h3{font-size:23px;line-height:1.5;margin:0 0 12px;color:var(--text-main)}
.value-body p{font-size:15px;color:var(--text-secondary);line-height:1.85;margin-bottom:16px}
.value-points{list-style:none;padding:0;margin:0;display:grid;gap:9px}
.value-points li{display:flex;align-items:flex-start;gap:9px;font-size:15px;color:#3E4E5E}
.value-points i{color:var(--mint);margin-top:4px;font-size:15px}

/* steps */
.steps-section{background:#fff}
.step-list{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;margin-top:42px}
.step-item{background:#fff;border:1px solid var(--border);border-top:4px solid var(--primary);border-radius:16px;padding:30px 26px;box-shadow:var(--shadow-card);position:relative;transition:var(--transition)}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-hover);border-color:rgba(45,111,240,.45)}
.step-num{width:52px;height:52px;border-radius:16px;background:var(--primary-light);color:var(--primary);font-weight:700;font-size:21px;display:flex;align-items:center;justify-content:center;margin-bottom:20px}
.step-item h4{font-size:19px;font-weight:700;margin:0 0 8px;color:var(--text-main)}
.step-item p{font-size:15px;color:var(--text-secondary);line-height:1.8;margin:0}
.step-arrow{position:absolute;top:40px;right:-21px;color:#CFDBE9;font-size:22px;z-index:2}
@media (max-width:767px){
  .step-arrow{display:none}
}

/* showcase */
.showcase-section{background:var(--bg)}
.browser-card{background:#fff;border-radius:20px;box-shadow:var(--shadow-hover);overflow:hidden;margin-top:36px;border:1px solid var(--border)}
.browser-top{display:flex;align-items:center;gap:14px;padding:10px 16px;border-bottom:1px solid var(--border);background:#FbfBFd}
.browser-dots{display:flex;gap:6px;flex-shrink:0}
.browser-dots span{width:11px;height:11px;border-radius:50%;background:#D7E1ED}
.browser-dots span:first-child{background:#FF9F9F}
.browser-dots span:nth-child(2){background:#F5C876}
.browser-dots span:last-child{background:#92E0C8}
.browser-address{flex:1;background:#F0F4FA;border-radius:8px;font-size:12px;color:#7A8BA0;padding:6px 12px;text-align:center;min-width:0;overflow:hidden;white-space:nowrap;text-overflow:ellipsis}
.browser-address i{color:var(--mint);margin-right:3px}
.browser-screen img{width:100%;max-height:520px;object-fit:cover;min-height:260px}
.showcase-note{display:flex;justify-content:center;margin-top:18px;color:var(--text-secondary);font-size:14px;gap:6px}

/* trust/security */
.safety-grid{display:grid;grid-template-columns:1.15fr .85fr;gap:24px;margin-top:20px}
.safety-card{background:#fff;border-radius:16px;padding:30px;box-shadow:var(--shadow-card);border:1px solid rgba(255,255,255,0);height:100%}
.safety-card h3{font-size:20px;font-weight:700;margin-bottom:20px;padding-bottom:12px;border-bottom:1px solid var(--border);display:flex;align-items:center;gap:8px}
.safety-card h3 i{color:var(--primary)}
.safety-list{list-style:none;margin:0;padding:0;display:grid;gap:14px}
.safety-list li{display:flex;gap:12px;font-size:15px;color:#3E4E5E;line-height:1.7;align-items:flex-start;background:#F9FBFE;border-radius:10px;padding:12px 14px}
.safety-list li i{font-size:17px;color:var(--mint);margin-top:3px;flex-shrink:0}
.safety-list li strong{display:block;font-weight:600;color:var(--text-main)}
.reminder-card{background:#FFF9EF;border:1px solid rgba(245,166,35,.38);border-radius:16px;padding:24px 24px 28px;height:100%}
.reminder-card h3{display:flex;align-items:center;gap:8px;font-size:19px;font-weight:700;color:#5C3E14;margin-bottom:14px}
.reminder-card h3 i{color:var(--amber)}
.reminder-card ul{list-style:none;margin:0 0 18px;padding:0;display:grid;gap:10px}
.reminder-card ul li{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:#65513A;line-height:1.7}
.reminder-card ul li i{color:var(--amber);font-size:14px;margin-top:5px}
.reminder-link{font-weight:600;font-size:14px;color:#A66B00}
.reminder-link:hover{color:#7d4f00}

/* CMS news */
.news-section{background:var(--bg)}
.news-card-title{display:inline-flex;align-items:center;gap:8px}
.news-card-title i{color:var(--primary)}
.news-main-card{background:#fff;border-radius:16px;overflow:hidden;box-shadow:var(--shadow-card);transition:var(--transition);margin-bottom:0;height:100%;display:flex;flex-direction:column;border:1px solid rgba(255,255,255,0)}
.news-main-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px)}
.news-main-thumb{position:relative;overflow:hidden;display:block;height:230px;background:var(--primary-light)}
.news-main-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.news-main-card:hover .news-main-thumb img{transform:scale(1.04)}
.news-cat-badge{position:absolute;left:14px;top:14px;background:rgba(45,111,240,.92);color:#fff;border-radius:6px;font-size:12px;padding:4px 10px;font-weight:600;z-index:3}
.news-main-body{padding:20px 22px 22px;display:flex;flex-direction:column;flex:1}
.news-main-body h5{font-size:19px;line-height:1.5;font-weight:700;margin:0 0 10px}
.news-main-body h5 a{color:var(--text-main)}
.news-main-body h5 a:hover{color:var(--primary)}
.news-main-body p{font-size:15px;color:var(--text-secondary);line-height:1.85;margin:0 0 16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-meta{display:flex;align-items:center;gap:14px;font-size:13px;color:var(--text-secondary);margin-top:auto;flex-wrap:wrap}
.news-meta span{display:inline-flex;align-items:center;gap:4px}
.news-more-link{margin-left:auto;font-weight:600}
.news-more-link:hover{color:var(--primary-dark)}
.news-aside-card{background:#fff;border-radius:16px;box-shadow:var(--shadow-card);overflow:hidden;border:1px solid rgba(255,255,255,0)}
.news-aside-head{padding:16px 20px 0;font-size:17px;font-weight:700;color:var(--text-main);display:flex;align-items:center;gap:8px}
.news-aside-head i{color:var(--primary)}
.news-aside-body{padding:12px 10px 16px}
.news-aside-item{display:block;width:100%;text-align:left;background:#fff;color:var(--text-main);padding:12px 12px;border-radius:10px;transition:var(--transition);border-bottom:1px solid #F1F4F8}
.news-aside-item:last-child{border-bottom:0}
.news-aside-item:hover{background:var(--primary-light)}
.aside-rank{display:inline-flex;align-items:center;justify-content:center;width:24px;height:24px;border-radius:7px;background:#E8F0FE;color:var(--primary);font-weight:700;font-size:13px;font-style:normal;flex-shrink:0}
.aside-rank.top{background:var(--amber);color:#2B2320}
.aside-title{font-size:14px;font-weight:600;line-height:1.55;color:inherit;display:block;flex:1;min-width:0;overflow:hidden;text-overflow:ellipsis;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical}
.news-aside-cat{font-size:11px;color:var(--primary);background:var(--primary-light);border-radius:5px;padding:1px 6px;flex-shrink:0}
.news-aside-date{font-size:12px;color:#93A2B3;display:flex;align-items:center;gap:3px;margin-top:4px}
.news-empty{border:1px dashed #C9D9EC;border-radius:16px;background:#fff;padding:44px 24px;text-align:center}
.news-empty i{font-size:44px;color:#BFD4F0;display:block;margin-bottom:10px}
.news-empty h5{font-size:17px;font-weight:600;margin-bottom:6px;color:var(--text-main)}
.news-empty p{font-size:14px;color:var(--text-secondary);margin-bottom:16px}

/* service comparison */
.service-table-wrap{background:#fff;border-radius:20px;box-shadow:var(--shadow-card);overflow-x:auto;padding:18px 20px 12px;margin-top:14px}
.comparison-table{width:100%;border-collapse:collapse;font-size:15px;min-width:760px}
.comparison-table caption{caption-side:top;text-align:left;font-size:14px;color:var(--text-secondary);padding:6px 4px 14px}
.comparison-table thead th{background:#1C3D5D;color:#fff;font-weight:600;padding:13px 16px;text-align:left;white-space:nowrap}
.comparison-table thead th:first-child{border-top-left-radius:12px}
.comparison-table thead th:last-child{border-top-right-radius:12px}
.comparison-table tbody td{padding:13px 16px;border-bottom:1px solid #EDF1F6;color:#42536A;vertical-align:middle}
.comparison-table tbody tr:last-child td{border-bottom:0}
.comparison-table tbody tr:hover td{background:#F9FBFE}
.comparison-table .mark-yes{color:var(--mint);font-weight:600}
.comparison-table .mark-no{color:#B8C5D4}
.comparison-table .mark-wait{color:var(--amber);font-weight:600}
.comparison-table .remark{font-size:13px;color:#98A6B5}

/* faq */
.faq-section{background:#fff}
.faq-wrap{max-width:920px;margin:0 auto}
.accordion-item{border:1px solid var(--border);border-radius:14px;overflow:hidden;margin-bottom:14px;box-shadow:0 2px 8px rgba(23,55,93,.03)}
.accordion-item:has(.accordion-button:not(.collapsed)){border-color:var(--primary);box-shadow:0 8px 20px rgba(45,111,240,.10)}
.accordion-button{background:#fff;color:var(--text-main);font-weight:600;font-size:16px;padding:18px 62px 18px 20px;border:0;box-shadow:none;position:relative;display:flex;align-items:center;gap:12px;text-align:left}
.accordion-button::after{background:none;width:auto;height:auto;font-family:"bootstrap-icons";content:"\F282";font-size:18px;color:var(--primary);transition:transform .28s ease;margin-left:auto;position:absolute;right:18px}
.accordion-button:not(.collapsed){background:#F7FAFF;color:var(--primary-dark);box-shadow:none}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg)}
.accordion-button:focus{box-shadow:none;border:0;outline:0}
.accordion-button .faq-q-icon{width:30px;height:30px;border-radius:8px;background:var(--primary-light);color:var(--primary);display:inline-flex;align-items:center;justify-content:center;flex-shrink:0;font-size:15px}
.accordion-body{background:#fff;color:#526272;font-size:15px;line-height:1.95;padding:4px 62px 22px 62px;border-top:1px solid #EEF3F9}

/* cta */
.cta-section{padding:24px 0 80px;background:#fff}
.cta-banner{background:linear-gradient(90deg,#1d5cc8 0%,#2D6FF0 100%);border-radius:20px;padding:38px 42px;display:flex;align-items:center;justify-content:space-between;gap:24px;box-shadow:var(--shadow-hover)}
.cta-title{font-size:25px;line-height:1.4;font-weight:700;color:#fff;margin:0 0 8px}
.cta-desc{font-size:15px;color:#DCE8FF;line-height:1.7;margin:0}
.cta-banner .btn-amber{flex-shrink:0;padding:14px 28px;border-radius:10px;box-shadow:0 8px 24px rgba(0,0,0,.12)}
.cta-banner .btn-amber i{font-size:18px}

/* floating CTA */
.floating-cta{position:fixed;right:22px;bottom:22px;z-index:1045;display:inline-flex;align-items:center;gap:8px;background:var(--amber);border-radius:999px;padding:12px 22px;color:#2B2320;font-weight:700;font-size:15px;box-shadow:0 10px 25px rgba(245,166,35,.38);opacity:0;visibility:hidden;transform:translateY(10px);transition:opacity .3s ease,visibility .3s ease,transform .3s ease,background .2s ease;text-decoration:none}
.floating-cta:hover{background:var(--amber-dark);color:#fff}
.floating-cta.is-visible{opacity:1;visibility:visible;transform:translateY(0)}
.floating-cta i{font-size:17px}

/* footer */
.site-footer{background:#172B43;color:#D5E1F0;padding-top:64px;margin-top:0}
.footer-columns{display:grid;grid-template-columns:1.4fr 1fr 1fr 1.2fr;gap:36px;padding-bottom:42px}
.footer-about .brand-text{color:#fff;font-size:21px;display:block;margin-bottom:8px}
.footer-about .brand-domain{display:inline-block;margin-bottom:16px}
.footer-desc{font-size:14px;color:#AEBFDC;line-height:1.85;margin:0}
.footer-title{font-size:16px;font-weight:600;color:#fff;margin:0 0 18px;position:relative;padding-bottom:10px;letter-spacing:.3px}
.footer-title:after{content:"";width:22px;height:3px;border-radius:2px;background:var(--amber);position:absolute;left:0;bottom:0}
.footer-links{list-style:none;padding:0;margin:0;display:grid;gap:10px}
.footer-links a{color:#B9C9DF;font-size:14px;display:inline-flex;align-items:center;gap:6px}
.footer-links a i{font-size:11px;color:var(--amber)}
.footer-links a:hover{color:#fff}
.footer-contact p{font-size:14px;color:#B9C9DF;display:flex;gap:8px;align-items:flex-start;margin-bottom:12px;line-height:1.7}
.footer-contact i{color:var(--amber);margin-top:3px}
.footer-safe-tip{background:rgba(255,255,255,.05);border-radius:10px;padding:10px 12px;font-size:13px;color:#AEBFDC}
.footer-bottom{background:#0F2034;padding:18px 0;text-align:center;color:#8FA3BE;font-size:12px}
.footer-bottom .copyright-line{display:inline-flex;align-items:center;gap:6px;flex-wrap:wrap;justify-content:center}
.footer-bottom a{color:#C1D1E6;text-decoration:none}
.footer-bottom a:hover{color:#fff}

/* responsive */
@media (min-width:992px){
  .main-nav{display:flex}
  .nav-tools{display:flex}
  .mobile-nav-trigger{display:none}
}
@media (max-width:991px){
  .section{padding:58px 0}
  .brand-text{font-size:18px}
  .brand-domain{font-size:11px;padding:3px 8px}
  .hero-section{padding:32px 0 24px}
  .hero-title{font-size:32px}
  .hero-grid{grid-template-columns:1fr;gap:30px}
  .login-panel-demo{max-width:100%}
  .value-item,.value-item.reversed{flex-direction:column;gap:22px;padding:24px}
  .value-media,.value-body{flex:0 0 auto;width:100%}
  .step-list{grid-template-columns:1fr 1fr}
  .safety-grid{grid-template-columns:1fr}
  .cta-banner{flex-direction:column;text-align:center;padding:28px 22px}
  .cta-title{font-size:22px}
}
@media (max-width:767px){
  body{padding-bottom:70px}
  .section{padding:48px 0}
  .section-title{font-size:24px}
  .header-top .header-date{display:none}
  .header-top .secure-badge span{display:none}
  .header-top .secure-badge{font-size:15px}
  .brand-text{font-size:17px;white-space:normal;line-height:1.3}
  .brand-domain{margin-left:auto}
  .hero-stat-band{padding:12px 10px}
  .stat-grid{grid-template-columns:repeat(2,1fr);row-gap:18px}
  .stat-item{padding:0 12px;border-left:0}
  .stat-item:nth-child(even){border-left:1px solid var(--border)}
  .stat-value{font-size:23px}
  .step-list{grid-template-columns:1fr;gap:16px}
  .step-item{padding:22px}
  .news-main-thumb{height:180px}
  .footer-columns{grid-template-columns:1fr;gap:30px}
  .floating-cta{left:12px;right:12px;bottom:12px;border-radius:14px;justify-content:center;padding:13px 20px;box-shadow:0 8px 22px rgba(245,166,35,.35)}
  .hero-actions .btn{flex:1;min-width:0}
  .header-top .container{padding-left:12px;padding-right:12px}
  .header-navbar .container{padding-left:12px;padding-right:12px}
  .browser-address{font-size:10px}
}
@media (max-width:575px){
  .hero-title{font-size:27px}
  .hero-lead{font-size:15px}
  .hero-actions{flex-direction:column;align-items:stretch}
  .hero-actions .btn{width:100%}
  .panel-body{padding:20px}
  .value-item{padding:18px}
  .value-body h3{font-size:20px}
  .cta-banner{display:block}
  .cta-banner .btn-amber{width:100%;margin-top:18px}
}

/* focus-visible alternative for accessibility */
a:focus-visible,img:focus-visible,.form-control:focus-visible,.form-select:focus-visible{outline:3px solid rgba(45,111,240,.35);outline-offset:2px}
.list-unstyled{list-style:none;padding-left:0}

/* roulang page: article */
:root {
  --primary: #2D6FF0;
  --primary-deep: #1655B8;
  --primary-light: #EDF4FF;
  --mint: #19B89D;
  --amber: #F5A623;
  --amber-deep: #E0900C;
  --bg: #F5F7FB;
  --card-bg: #FFFFFF;
  --text-main: #2B3A4A;
  --text-sub: #6B7A8C;
  --border: #E3EAF2;
  --radius-lg: 16px;
  --radius-md: 8px;
  --radius-sm: 6px;
  --shadow-sm: 0 2px 8px rgba(23,55,93,.05);
  --shadow-md: 0 4px 16px rgba(23,55,93,.07);
  --shadow-hover: 0 12px 28px rgba(23,55,93,.10);
  --transition: all .25s cubic-bezier(.3,0,.3,1);
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: "PingFang SC","Microsoft YaHei","Noto Sans SC",system-ui,-apple-system,sans-serif;
  background: var(--bg);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
  overflow-x: hidden;
}
img, svg { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: var(--transition); }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible, [tabindex]:focus-visible {
  outline: 3px solid rgba(45,111,240,.25);
  outline-offset: 2px;
  box-shadow: 0 0 0 3px rgba(45,111,240,.14);
}
.container { max-width: 1200px; padding-left: 16px; padding-right: 16px; }
.btn { border-radius: var(--radius-md); font-weight: 600; }
.btn-primary { background: var(--primary); border-color: var(--primary); }
.btn-primary:hover, .btn-primary:focus { background: var(--primary-deep); border-color: var(--primary-deep); }
.btn-amber { background: var(--amber); border-color: var(--amber); color: #2B2320; }
.btn-amber:hover, .btn-amber:focus { background: var(--amber-deep); border-color: var(--amber-deep); color: #2B2320; }
.btn-outline-light { background: #fff; border: 1px solid #D8E1ED; color: var(--text-main); }
.btn-outline-light:hover { background: var(--primary-light); border-color: var(--primary); color: var(--primary); }
.btn, .nav-tools, .topbar-chips .chip { transition: var(--transition); }

/* ============ Header 顶部品牌行 ============ */
.site-topbar { background: #fff; border-bottom: 1px solid var(--border); }
.topbar-row { display: flex; align-items: center; justify-content: space-between; min-height: 48px; gap: 12px; }
.brand-wrap { display: flex; align-items: center; gap: 8px; min-width: 0; }
.brand-text { font-size: 19px; font-weight: 700; color: var(--primary-deep); white-space: nowrap; letter-spacing: .5px; }
.brand-domain-badge {
  display: inline-flex; align-items: center; background: var(--primary-light);
  color: var(--primary-deep); font-size: 12px; font-weight: 600; padding: 2px 10px 2px 8px;
  border-radius: 12px; border: 1px solid #D0E0F7; font-family: SFMono-Regular,Consolas,monospace; white-space: nowrap;
}
.topbar-right { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.topbar-time { font-size: 13px; color: var(--text-sub); display: flex; align-items: center; gap: 5px; }
.https-safety { display: inline-flex; align-items: center; gap: 4px; font-size: 13px; color: var(--mint); font-weight: 600; }
.btn-login-entry {
  background: var(--amber); color: #2B2320; border: none; font-size: 13px; font-weight: 700;
  padding: 4px 14px; height: 32px; border-radius: 16px; display: inline-flex; align-items: center; gap: 5px;
}
.btn-login-entry:hover { background: var(--amber-deep); color: #2B2320; transform: translateY(-1px); }

/* ============ Header 导航频道行 ============ */
.navbar { background: #fff; padding: 0; border-bottom: 1px solid var(--border); transition: var(--transition); }
.navbar.sticky-top { box-shadow: var(--shadow-sm); }
.main-nav { display: flex; align-items: center; gap: 0; list-style: none; margin: 0; padding: 0; }
.nav-link-item {
  display: inline-flex; align-items: center; padding: 12px 16px; font-size: 15px;
  font-weight: 600; color: var(--text-main); border-bottom: 2px solid transparent; white-space: nowrap;
}
.nav-link-item:hover { color: var(--primary); background: var(--primary-light); }
.nav-link-item.active { color: var(--primary); border-bottom-color: var(--primary); background: transparent; }
.navbar-tools { display: flex; align-items: center; gap: 10px; }
.header-search { position: relative; width: 180px; }
.header-search .form-control {
  height: 34px; border-radius: 17px; border: 1px solid #D7E1ED; background: var(--bg);
  font-size: 13px; padding: 0 34px 0 14px;
}
.header-search .form-control:focus { background: #fff; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(45,111,240,.1); }
.header-search .search-icon { position: absolute; top: 50%; transform: translateY(-50%); right: 10px; font-size: 14px; color: var(--text-sub); pointer-events: none; }
.offcanvas-header { border-bottom: 1px solid var(--border); }
.offcanvas .nav-link-item { width: 100%; border-bottom: 1px solid var(--border); border-radius: 0; padding: 12px 8px; }
/* 热词胶囊 */
.hot-tag-nav { display: flex; align-items: center; gap: 8px; margin-left: 10px; flex-shrink: 1; overflow: hidden; min-width: 0; }
.chip {
  display: inline-flex; align-items: center; background: #F0F5FF; color: var(--primary);
  font-size: 12px; padding: 2px 10px; border-radius: 6px; border: none; cursor: pointer; white-space: nowrap;
}
.chip:hover { background: var(--primary); color: #fff; }
.navbar-expand-lg .hot-tag-nav { display: flex; }
@media (max-width: 991.98px) {
  .hot-tag-nav { display: none; }
  .mobile-hots { display: flex !important; gap: 8px; overflow-x: auto; padding: 8px 16px; background: #fff; border-bottom: 1px solid var(--border); }
  .mobile-hots::-webkit-scrollbar { display: none; }
  .mobile-hots .chip { flex-shrink: 0; }
}
.mobile-hots { display: none; }

/* ============ 页面主内容布局 ============ */
.article-wrapper { padding-top: 28px; }
.breadcrumb-line { font-size: 13px; color: var(--text-sub); margin-bottom: 14px; }
.breadcrumb-line a { color: var(--primary); }
.breadcrumb-line a:hover { color: var(--primary-deep); text-decoration: underline; }
.article-main-card { background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: 0; overflow: hidden; }
.article-head { padding: 32px 36px 20px; border-bottom: 1px solid #F0F4F9; }
.article-meta.blog-item-meta { display: flex; align-items: center; gap: 12px; flex-wrap: wrap; font-size: 13px; margin-bottom: 14px; }
.article-meta .meta-cat {
  display: inline-block; background: var(--primary-light); color: var(--primary-deep);
  font-size: 12px; font-weight: 600; padding: 2px 12px; border-radius: 6px;
}
.article-meta .meta-date { color: var(--text-sub); }
.article-meta .meta-author { color: var(--text-sub); }
.article-head h1 { font-size: 30px; font-weight: 700; line-height: 1.4; color: var(--text-main); margin-bottom: 0; letter-spacing: .2px; }
.article-cover-wrap { padding: 20px 36px 6px; }
.article-cover-wrap img { width: 100%; border-radius: 12px; object-fit: cover; max-height: 420px; background: var(--primary-light); }
.article-body { padding: 18px 36px 28px; max-width: 780px; }
.article-body p { font-size: 17px; line-height: 1.9; margin-bottom: 20px; color: #33424F; }
.article-body h2 { font-size: 22px; font-weight: 700; color: var(--text-main); margin: 34px 0 14px; padding-left: 12px; border-left: 4px solid var(--primary); line-height: 1.5; }
.article-body h3 { font-size: 19px; font-weight: 700; color: var(--text-main); margin: 26px 0 12px; }
.article-body img { border-radius: 12px; margin: 16px 0; }
.article-body blockquote {
  background: var(--primary-light); border-radius: 10px; padding: 18px 22px;
  margin: 22px 0; border: none; position: relative; color: #3A4E63; font-size: 16px;
}
.article-body blockquote::before { content: "\201C"; font-size: 48px; color: var(--primary); opacity: .2; position: absolute; top: 4px; left: 12px; font-family: Georgia,serif; }
.article-body ul, .article-body ol { padding-left: 22px; margin-bottom: 20px; }
.article-body li { margin-bottom: 6px; font-size: 16px; line-height: 1.8; }
/* 相关推荐前置简版 */
.related-posts { margin: 0 36px 20px; }
.related-posts .list-group-item { border: none; padding: 12px 0; border-top: 1px solid #F0F4F9; background: transparent; }
.related-posts .list-group-item:first-child { border-top: none; }
.related-posts a { color: var(--text-main); }
.related-posts a:hover { color: var(--primary); }

/* ============ 侧栏 ============ */
.side-card { background: #fff; border-radius: var(--radius-lg); box-shadow: var(--shadow-sm); padding: 24px; margin-bottom: 24px; }
.side-card-title { font-size: 18px; font-weight: 700; margin-bottom: 16px; display: flex; align-items: center; gap: 8px; color: var(--text-main); }
.side-card-title::before { content: ''; width: 4px; height: 18px; background: var(--primary); border-radius: 2px; }
.side-link-list li { border-bottom: 1px solid var(--border); }
.side-link-list li:last-child { border-bottom: none; }
.side-link-list a { display: block; padding: 10px 0; font-size: 14px; color: var(--text-main); }
.side-link-list a:hover { color: var(--primary); padding-left: 4px; }
.side-rank-list .rank-item { display: flex; align-items: flex-start; gap: 10px; padding: 9px 0; border-bottom: 1px solid #F0F4F9; }
.side-rank-list .rank-item:last-child { border-bottom: none; }
.rank-no {
  width: 22px; height: 22px; background: var(--primary-light); color: var(--primary-deep);
  border-radius: 6px; font-size: 12px; font-weight: 700; display: inline-flex; align-items: center;
  justify-content: center; flex-shrink: 0; margin-top: 2px;
}
.side-rank-list .rank-item:nth-child(1) .rank-no, .side-rank-list .rank-item:nth-child(2) .rank-no, .side-rank-list .rank-item:nth-child(3) .rank-no { background: var(--amber); color: #2B2320; }
.rank-link { font-size: 14px; color: var(--text-main); line-height: 1.5; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.rank-link:hover { color: var(--primary); }
.side-hots { display: flex; flex-wrap: wrap; gap: 6px; }
.side-help-card { background: #fff8EE; border: 1px solid #FCE1C4; }
.side-help-card .icon-big { color: var(--amber); font-size: 30px; margin-bottom: 6px; }
.side-help-card p { font-size: 13px; color: var(--text-sub); }
.side-hot-link { font-size: 13px; color: var(--text-sub); }
.side-hot-link:hover { color: var(--primary); }

/* ============ 通用 ============ */
.section-pad { padding: 60px 0; }
.article-back { padding: 10px 0 20px; font-size: 14px; }

/* ============ Footer ============ */
.site-footer { background: #fff; border-top: 1px solid var(--border); margin-top: 36px; }
.footer-columns { display: grid; grid-template-columns: 2fr 1fr 1fr 1.6fr; gap: 40px; padding: 48px 0 32px; }
.footer-about .brand-text { font-size: 20px; color: var(--primary-deep); display: block; }
.brand-domain {
  display: inline-block; background: var(--bg); border: 1px dashed #C6D9F8; color: var(--primary);
  font-size: 12px; padding: 2px 8px; border-radius: 10px; font-family: SFMono-Regular,Consolas,monospace; margin-top: 8px;
}
.footer-desc { color: var(--text-sub); font-size: 14px; margin-top: 12px; line-height: 1.7; }
.footer-title { font-size: 16px; margin-bottom: 14px; color: var(--text-main); font-weight: 700; }
.footer-links { list-style: none; padding: 0; }
.footer-links li { margin-bottom: 8px; }
.footer-links a { color: var(--text-sub); font-size: 14px; }
.footer-links a:hover { color: var(--primary); padding-left: 4px; }
.footer-contact p { font-size: 14px; color: var(--text-sub); margin-bottom: 8px; }
.footer-contact i { margin-right: 6px; color: var(--primary); }
.footer-safe-tip { background: #FFFAF0; border: 1px solid #F5E0BE; border-radius: 10px; padding: 10px 12px; font-size: 13px; color: #6A5B4B; margin-top: 6px; line-height: 1.6; }
.footer-bottom { border-top: 1px solid var(--border); background: #FAFBFD; padding: 14px 0; text-align: center; }
.copyright-line { font-size: 13px; color: var(--text-sub); }
.copyright-line span { margin: 0 8px; color: var(--border); }

/* ============ 空状态 ============ */
.article-empty { padding: 90px 24px; text-align: center; }
.article-empty .empty-illustration {
  width: 120px; height: 120px; border-radius: 60px; background: var(--primary-light);
  display: flex; align-items: center; justify-content: center; font-size: 48px; color: var(--primary); margin: 0 auto 20px;
}

/* ============ 响应式 ============ */
@media (max-width: 991px) {
  .topbar-time { display: none; }
  .article-head, .article-body, .article-cover-wrap { padding-left: 22px; padding-right: 22px; }
  .article-head h1 { font-size: 24px; }
  .article-body p { font-size: 16px; }
  .footer-columns { grid-template-columns: 1fr 1fr; gap: 28px; }
}
@media (max-width: 767px) {
  .section-pad { padding: 40px 0; }
  .article-body p { font-size: 15.5px; line-height: 1.85; }
  .article-head h1 { font-size: 22px; }
  .footer-columns { grid-template-columns: 1fr; gap: 24px; padding-top: 32px; }
  .side-card { padding: 18px; }
  .related-posts { margin: 0 20px; }
}
@media (max-width: 575px) {
  .topbar-row { min-height: 46px; }
  .brand-text { font-size: 17px; }
  .brand-domain-badge { font-size: 11px; }
  .article-body p { font-size: 15px; }
  .article-body { padding-bottom: 16px; }
  .article-back { padding: 0 4px 16px; }
}

/* roulang page: category1 */
:root {
      --brand: #2D6FF0;
      --brand-dark: #1655B8;
      --brand-soft: #EDF4FF;
      --teal: #19B89D;
      --amber: #F5A623;
      --amber-dark: #E0900C;
      --bg: #F5F7FB;
      --card-bg: #FFFFFF;
      --text: #2B3A4A;
      --text-sub: #526272;
      --text-muted: #6B7A8C;
      --border: #E3EAF2;
      --border-deep: #D8E1ED;
      --radius-lg: 16px;
      --radius-md: 8px;
      --radius-sm: 6px;
      --shadow-card: 0 4px 16px rgba(23,55,93,.06);
      --shadow-hover: 0 12px 28px rgba(23,55,93,.10);
      --shadow-hero: 0 20px 40px rgba(23,55,93,.08);
      --font-family: -apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Noto Sans SC","Segoe UI",Roboto,sans-serif;
      --font-mono: ui-monospace,SFMono-Regular,Menlo,Consolas,"Liberation Mono",monospace;
    }
    *{box-sizing:border-box}
    html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
    body{margin:0;font-family:var(--font-family);background:var(--bg);color:var(--text);font-size:16px;line-height:1.7;-webkit-font-smoothing:antialiased}
    a{color:inherit;text-decoration:none;transition:color .2s,background .2s,border-color .2s,box-shadow .2s}
    a:hover{color:var(--brand)}
    img{max-width:100%;height:auto;display:block}
    button,input,textarea,select{font-family:inherit}
    :focus-visible{outline:3px solid rgba(45,111,240,.32);outline-offset:2px;border-radius:4px}
    .container{max-width:1200px;padding-left:16px;padding-right:16px;margin:0 auto}
    .section{padding:80px 0}
    .section-alt{background:var(--card-bg)}
    .section-head{max-width:760px;margin:0 auto 48px;text-align:center}
    .section-head .eyebrow{display:inline-block;font-size:13px;font-weight:600;color:var(--brand);letter-spacing:.08em;text-transform:uppercase;background:var(--brand-soft);border:1px solid #d7e4f5;border-radius:999px;padding:4px 14px;margin-bottom:14px}
    .section-head h2{font-size:30px;line-height:1.35;font-weight:700;color:#1F2D3D;margin:0 0 12px}
    .section-head p{font-size:16px;color:var(--text-muted);margin:0}
    .btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;min-height:48px;padding:0 24px;border-radius:var(--radius-md);border:1px solid transparent;font-size:15px;line-height:1;color:var(--text);background:#fff;text-align:center;transition:.2s}
    .btn i{font-size:16px}
    .btn-amber{background:var(--amber);color:#332418;border-color:var(--amber)}
    .btn-amber:hover{background:var(--amber-dark);border-color:var(--amber-dark);color:#fff;box-shadow:0 8px 18px rgba(245,166,35,.25)}
    .btn-brand{background:var(--brand);border-color:var(--brand);color:#fff}
    .btn-brand:hover{background:var(--brand-dark);border-color:var(--brand-dark);color:#fff;box-shadow:0 8px 20px rgba(45,111,240,.22)}
    .btn-ghost{background:#fff;border:1px solid var(--border-deep);color:var(--text)}
    .btn-ghost:hover{background:var(--brand-soft);border-color:var(--brand);color:var(--brand)}
    .btn-sm{min-height:38px;padding:0 16px;font-size:14px;border-radius:var(--radius-sm)}
    .badge-tag{display:inline-block;padding:4px 12px;border-radius:999px;background:#F0F5FF;color:var(--brand);font-size:13px;border:1px solid #E0EAF7}
    .badge-amber{background:#FFF6E3;color:#B4790B;border:1px solid #FFE0A6}

    .site-header{position:sticky;top:0;z-index:1200;background:#fff;border-bottom:1px solid #E9EFF6;box-shadow:0 2px 8px rgba(23,55,93,.05)}
    .site-header.is-scrolled{box-shadow:0 6px 18px rgba(23,55,93,.07)}
    .header-top{border-bottom:1px solid #EEF2F7;background:#fff}
    .top-inner{min-height:52px;display:flex;align-items:center;justify-content:space-between;gap:14px}
    .brand-lock{display:flex;align-items:center;gap:10px;min-width:0}
    .brand-text{font-size:19px;font-weight:700;color:#234;white-space:nowrap}
    .brand-text i{color:var(--brand);font-style:normal}
    .domain-badge{display:inline-block;background:#EAF1FB;border:1px solid #D3E0F5;border-radius:6px;padding:2px 8px;font-family:var(--font-mono);font-size:12px;color:#2559A7;white-space:nowrap}
    .top-tools{display:flex;align-items:center;gap:12px;font-size:13px;color:var(--text-muted)}
    .hts-info{display:inline-flex;align-items:center;gap:5px;background:#F0FAF7;border:1px solid #D3EFE8;color:#147A68;padding:3px 10px;border-radius:999px;font-size:12px}
    .top-time{font-variant-numeric:tabular-nums}
    .entry-link{display:inline-flex;align-items:center;gap:6px;border:1px solid var(--amber);color:#9A6B0F;background:#FFFBEF;padding:5px 14px;border-radius:8px;font-size:14px;font-weight:600}
    .entry-link:hover{background:var(--amber);border-color:var(--amber);color:#332418}
    .header-nav{background:#fff}
    .nav-inner{display:flex;align-items:center;justify-content:space-between;min-height:62px;gap:14px}
    .main-nav{display:flex;gap:4px;flex-wrap:nowrap}
    .nav-item{position:relative;padding:0 18px;height:60px;line-height:60px;font-size:15px;color:#405060;white-space:nowrap}
    .nav-item:hover{color:var(--brand)}
    .nav-item.active{font-weight:600;color:var(--brand)}
    .nav-item.active:after{content:"";position:absolute;left:12px;right:12px;bottom:2px;height:3px;border-radius:2px;background:var(--brand)}
    .nav-right{display:flex;align-items:center;gap:10px}
    .search-form{position:relative;display:flex;align-items:center}
    .search-form i{position:absolute;left:13px;color:#93A3B5;font-size:14px;pointer-events:none}
    .search-form input{width:190px;height:36px;border:1px solid var(--border-deep);border-radius:8px;padding:0 30px 0 36px;font-size:13px;color:var(--text);background:#F8FAFD;transition:.2s}
    .search-form input:focus{outline:0;border-color:var(--brand);background:#fff;box-shadow:0 0 0 3px rgba(45,111,240,.16)}
    .hot-links{display:flex;align-items:center;gap:6px}
    .hot-link{font-size:12px;line-height:1;padding:6px 11px;border-radius:999px;background:#F0F5FF;color:#2D6FF0;white-space:nowrap}
    .hot-link:hover{background:var(--brand);color:#fff}
    .mobile-trigger{width:40px;height:40px;border-radius:8px;border:1px solid var(--border-deep);background:#fff;display:none;align-items:center;justify-content:center;font-size:20px;color:var(--text)}
    .mobile-trends{display:none;background:#F8FAFD;border-top:1px solid #EDF1F5;padding:8px 0}
    .mobile-trends .container{display:flex;align-items:center;gap:8px;overflow-x:auto;scrollbar-width:none}
    .mobile-trends::-webkit-scrollbar{display:none}
    .trend-label{font-size:12px;color:var(--text-muted);white-space:nowrap}
    .mobile-hot-link{display:inline-block;background:#fff;border:1px solid #DCE6F1;color:#2D6FF0;font-size:12px;border-radius:999px;padding:4px 12px;white-space:nowrap}
    .mobile-hot-link:hover{border-color:var(--brand)}

    .category-banner{position:relative;padding:64px 0 62px;background:linear-gradient(180deg,rgba(250,252,255,.94) 0%,rgba(225,237,255,.90) 100%),url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center 30%}
    .breadcrumb-line{display:flex;flex-wrap:wrap;gap:7px;font-size:14px;color:var(--text-muted);margin-bottom:20px}
    .breadcrumb-line a{color:#5A6C80}
    .breadcrumb-line i{font-size:12px;color:#AEBCCB}
    .breadcrumb-line .current{color:var(--brand);font-weight:500}
    .category-title{font-size:40px;font-weight:700;line-height:1.25;color:#1C2D3E;margin:0 0 16px}
    .category-title span{color:var(--brand)}
    .category-desc{font-size:17px;line-height:1.85;color:var(--text-sub);max-width:760px;margin:0 0 24px}
    .category-badges{display:flex;flex-wrap:wrap;gap:8px;margin-top:10px}
    .banner-actions{display:flex;flex-wrap:wrap;gap:12px;margin-top:28px}

    .feature-story{background:var(--bg)}
    .feature-row{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center;margin-bottom:84px}
    .feature-row:last-child{margin-bottom:0}
    .feature-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-hero);background:linear-gradient(135deg,#EDF4FF,#DCE9FA)}
    .feature-media img{width:100%;aspect-ratio:16/10;object-fit:cover;background:#E6EDF6}
    .feature-text h3{font-size:24px;font-weight:700;color:#233547;margin:0 0 18px}
    .feature-text h3 .feat-icon{display:inline-flex;width:46px;height:46px;border-radius:12px;background:var(--brand-soft);color:var(--brand);align-items:center;justify-content:center;font-size:20px;margin-right:10px;vertical-align:middle}
    .feature-text p{color:var(--text-sub);font-size:16px;line-height:1.85;margin:0 0 14px}
    .feature-list{display:grid;gap:10px;padding:0;margin:20px 0 0;list-style:none}
    .feature-list li{position:relative;padding-left:26px;color:#40556C}
    .feature-list li i{position:absolute;left:0;top:5px;color:var(--teal);font-size:14px}
    .feature-row.flip .feature-text{order:-1}

    .guide-section{background:var(--card-bg)}
    .guide-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:16px}
    .guide-entry{background:#FCFDFF;border:1px solid var(--border);border-radius:14px;padding:26px;display:flex;gap:18px;align-items:flex-start;transition:.25s}
    .guide-entry:hover{border-color:#BDD4F1;box-shadow:var(--shadow-hover);transform:translateY(-2px)}
    .guide-icon{flex:0 0 48px;height:48px;border-radius:14px;background:var(--brand-soft);color:var(--brand);display:flex;align-items:center;justify-content:center;font-size:22px}
    .guide-entry h3{font-size:17px;margin:2px 0 8px;font-weight:700;color:#233547}
    .guide-entry p{margin:0;color:var(--text-muted);font-size:14px;line-height:1.75}
    .guide-tag{margin-top:10px;display:inline-block;font-size:12px;border-radius:6px;background:#F6F8FB;border:1px solid #E8EEF4;color:#7889A0;padding:3px 10px}

    .step-section{background:var(--bg)}
    .steps-grid{display:grid;grid-template-columns:repeat(4,minmax(0,1fr));gap:24px}
    .step-card{position:relative;background:#fff;border:1px solid #E7EDF4;border-radius:16px;padding:28px 22px;height:100%;box-shadow:0 2px 8px rgba(23,55,93,.03)}
    .step-num{width:34px;height:34px;border-radius:50%;background:var(--brand);color:#fff;font-size:15px;font-weight:700;display:flex;align-items:center;justify-content:center;margin-bottom:18px}
    .step-card h3{font-size:17px;font-weight:700;color:#233547;margin:0 0 10px}
    .step-card p{color:var(--text-muted);font-size:14px;line-height:1.7;margin:0}

    .notice-strip{background:linear-gradient(135deg,#F1F8FF,#FDF6EA);border-top:1px solid #E6EDF6;border-bottom:1px solid #E6EDF6}
    .notice-inner{display:flex;align-items:center;gap:16px;justify-content:center;flex-wrap:wrap;padding:16px 0;font-size:14px;color:var(--text-sub)}
    .notice-inner i{color:var(--amber);font-size:18px}

    .faq-section{background:#fff}
    .faq-wrap{max-width:840px;margin:0 auto}
    .accordion-item{background:#FFF;border:1px solid var(--border);border-radius:14px!important;overflow:hidden;margin-bottom:12px;box-shadow:none;transition:.2s}
    .accordion-item:has(.accordion-button:not(.collapsed)){border-color:#AFCCEF;box-shadow:0 8px 22px rgba(23,55,93,.07)}
    .accordion-button{background:#fff;color:var(--text);font-size:16px;font-weight:600;padding:18px 22px;box-shadow:none;line-height:1.6;gap:12px}
    .accordion-button:not(.collapsed){background:#F8FBFF;color:var(--brand);box-shadow:none}
    .accordion-button:focus{box-shadow:none}
    .faq-q{flex:0 0 32px;height:32px;border-radius:50%;background:var(--brand-soft);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;font-size:16px}
    .accordion-button::after{flex-shrink:0;width:12px;height:12px;background-size:12px;transition:transform .25s}
    .accordion-button:not(.collapsed)::after{transform:rotate(90deg)}
    .accordion-body{padding:2px 26px 22px 66px;color:var(--text-sub);font-size:15px;line-height:1.85}

    .cta-zone{background:var(--bg)}
    .cta-banner{background:linear-gradient(135deg,#EDF4FF 0%,#F8FAFF 58%,#FFF7E6 100%);border:1px solid #DFE9F6;border-radius:24px;padding:54px 52px;display:flex;align-items:center;justify-content:space-between;gap:30px;flex-wrap:wrap;box-shadow:var(--shadow-card)}
    .cta-text h2{font-size:29px;font-weight:700;color:#1F2F3F;margin:0 0 12px}
    .cta-text p{color:var(--text-muted);font-size:16px;margin:0}
    .cta-button{flex:0 0 auto}

    .floating-cta{position:fixed;right:26px;bottom:26px;z-index:900}
    .floating-cta a{display:inline-flex;align-items:center;gap:7px;background:var(--amber);border:1px solid #E7A036;color:#332418;padding:0 22px;height:44px;border-radius:999px;font-size:14px;font-weight:600;box-shadow:0 10px 24px rgba(245,166,35,.32)}
    .floating-cta a:hover{background:var(--amber-dark);color:#fff}

    .site-footer{background:#fff;border-top:1px solid var(--border);padding-top:60px}
    .footer-columns{display:grid;grid-template-columns:1.5fr 1fr 1fr 1.6fr;gap:38px;padding-bottom:40px}
    .footer-about .brand-text{display:inline-block;font-size:17px;margin-bottom:4px}
    .footer-about .brand-domain{display:inline-block;background:#EAF1FB;border:1px solid #D3E0F5;border-radius:6px;padding:2px 8px;font-family:var(--font-mono);font-size:12px;color:#2559A7;margin-left:8px}
    .footer-desc{margin:16px 0 0;font-size:14px;color:var(--text-muted);line-height:1.85}
    .footer-title{font-size:15px;font-weight:700;color:#2A3B4C;margin:0 0 18px}
    .footer-links{list-style:none;margin:0;padding:0;display:grid;gap:10px}
    .footer-links li a{font-size:14px;color:#60758A}
    .footer-links li a:hover{color:var(--brand);padding-left:2px}
    .footer-links li a i{font-size:11px;color:#9FB0BF;margin-right:6px}
    .footer-contact p{font-size:14px;color:#60758A;margin:0 0 8px;display:flex;gap:6px;align-items:flex-start}
    .footer-contact p i{color:var(--teal);font-size:15px;margin-top:4px}
    .footer-safe-tip{background:#FFFBF2;border:1px solid #F3E4C3;border-radius:10px;padding:12px 14px;font-size:13px;color:#8A6B35;line-height:1.7;margin-top:14px}
    .footer-bottom{border-top:1px solid #EDF1F6;padding:20px 0;background:#FBFCFE}
    .copyright-line{font-size:13px;color:#8795A5;text-align:center}
    .copyright-line span{color:#B5BFCB;margin:0 6px}

    .offcanvas{background:#fff;color:var(--text);width:320px!important}
    .offcanvas-header .brand-text{color:#233}
    .offcanvas .btn-close{filter:none;opacity:.7}
    .offcanvas-body{padding:12px 20px 30px}
    .mobile-search-wrap .search-form input{width:100%;height:44px;font-size:15px}
    .offcanvas-nav{display:grid;gap:4px;margin:26px 0 22px}
    .offcanvas-nav a{display:flex;align-items:center;justify-content:space-between;font-size:16px;color:#33475A;padding:11px 4px;border-bottom:1px solid #EDF1F6}
    .offcanvas-nav a i{color:#9EB0C1;font-size:13px}
    .offcanvas-nav a.active{color:var(--brand);font-weight:700}
    .offcanvas-safe{background:#F6F8FB;border:1px solid #E0E8F0;border-radius:10px;padding:12px 14px;font-size:13px;color:var(--text-muted);line-height:1.7}

    @media (max-width: 1199.98px) {
      .hot-links{display:none}
      .search-form input{width:150px}
    }
    @media (max-width: 991.98px) {
      .section{padding:56px 0}
      .header-nav,.desktop-only-nav{display:none}
      .mobile-trigger{display:inline-flex}
      .mobile-trends{display:block}
      .top-tools .hts-info,.top-time{display:none}
      .feature-row{grid-template-columns:1fr;gap:30px}
      .feature-row.flip .feature-text{order:0}
      .feature-row.feature-row.flip .feature-media{order:0}
      .guide-grid{grid-template-columns:1fr 1fr}
      .steps-grid{grid-template-columns:1fr 1fr;gap:16px}
      .footer-columns{grid-template-columns:1fr 1fr}
      .category-title{font-size:32px}
      .cta-banner{padding:38px 28px}
      .cta-text h2{font-size:24px}
    }
    @media (max-width: 767.98px) {
      .brand-text{font-size:17px}
      .domain-badge{font-size:11px}
      .entry-link span.d-sm-inline{display:none}
      .category-banner{padding:48px 0 46px}
      .category-title{font-size:28px}
      .category-desc{font-size:15px}
      .feature-list li{font-size:14px}
      .guide-grid{grid-template-columns:1fr}
      .steps-grid{grid-template-columns:1fr}
      .footer-columns{grid-template-columns:1fr 1fr;gap:28px}
    }
    @media (max-width: 575.98px) {
      .section{padding:44px 0}
      .container{padding-left:14px;padding-right:14px}
      .category-title{font-size:26px}
      .section-head h2{font-size:24px}
      .footer-columns{grid-template-columns:1fr}
      .footer-bottom{padding:18px 0}
      .floating-cta{right:14px;bottom:14px}
      .floating-cta a{height:42px;padding:0 18px;font-size:13px}
      .cta-banner{padding:28px 22px}
      .cta-button .btn{width:100%}
      .btn{white-space:nowrap}
    }
    @media (min-width: 992px) {
      .mobile-trigger,.mobile-trends{display:none!important}
    }

/* roulang page: category2 */
:root{
  --primary:#2D6FF0;
  --primary-dark:#1655B8;
  --primary-soft:#EDF4FF;
  --primary-lighter:#F5F9FF;
  --teal:#19B89D;
  --teal-soft:#E7F8F4;
  --amber:#F5A623;
  --amber-dark:#E0900C;
  --amber-soft:#FFF5E4;
  --body-bg:#F5F7FB;
  --white:#FFFFFF;
  --text:#2B3A4A;
  --text-muted:#6B7A8C;
  --border:#E3EAF2;
  --border-deep:#D3DFEA;
  --radius-lg:16px;
  --radius:8px;
  --radius-sm:6px;
  --shadow-sm:0 4px 16px rgba(23,55,93,.06);
  --shadow-md:0 12px 28px rgba(23,55,93,.10);
  --shadow-lg:0 20px 40px rgba(23,55,93,.08);
  --font-stack:"PingFang SC","Microsoft YaHei","Noto Sans SC","Segoe UI",system-ui,-apple-system,sans-serif;
}
*{box-sizing:border-box}
html{scroll-behavior:smooth}
body{
  margin:0;
  font-family:var(--font-stack);
  background:var(--body-bg);
  color:var(--text);
  font-size:16px;
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:inherit;transition:color .2s ease,border-color .2s ease,background .2s ease}
p,h1,h2,h3,h4,h5{margin-top:0;margin-bottom:.5rem}
.container{width:100%;max-width:1220px;margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px}
.row{margin-left:-12px;margin-right:-12px}
.row>[class*="col"]{padding-left:12px;padding-right:12px}
:focus-visible{outline:3px solid rgba(45,111,240,.28);outline-offset:2px;border-radius:4px}
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;font-weight:600;border:1px solid transparent;border-radius:var(--radius);height:48px;padding:0 24px;line-height:1;white-space:nowrap;transition:background .2s,box-shadow .2s,transform .2s,border-color .2s;cursor:pointer}
.btn-sm{height:38px;padding:0 16px;font-size:14px}
.btn-primary{background:var(--primary);color:#fff;box-shadow:0 6px 16px rgba(45,111,240,.22)}
.btn-primary:hover{background:var(--primary-dark);color:#fff;transform:translateY(-1px);box-shadow:0 10px 20px rgba(45,111,240,.26)}
.btn-amber{background:var(--amber);color:#2B2320;box-shadow:0 6px 16px rgba(245,166,35,.20)}
.btn-amber:hover{background:var(--amber-dark);color:#fff;transform:translateY(-1px)}
.btn-outline{background:var(--white);border-color:var(--border-deep);color:var(--text)}
.btn-outline:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary)}
.btn-lg{height:54px;padding:0 32px;font-size:17px}
.btn i{font-size:1.05em}
.text-primary{color:var(--primary)!important}
.text-teal{color:var(--teal)!important}
.text-soft{color:var(--text-muted)!important}
.bg-white{background-color:#fff!important}
.card-img,.img-round{border-radius:var(--radius-lg);object-fit:cover}
.icon-circle{width:44px;height:44px;border-radius:50%;display:inline-flex;align-items:center;justify-content:center;background:var(--primary-soft);color:var(--primary);font-size:20px;flex-shrink:0}
.icon-square{width:42px;height:42px;border-radius:10px;display:inline-flex;align-items:center;justify-content:center;background:var(--primary-soft);color:var(--primary);font-size:20px;flex-shrink:0}
.section-block{padding:80px 0}
.section-block.bg-white{background:#fff}
.section-kicker{display:inline-flex;align-items:center;gap:6px;background:var(--primary-soft);color:var(--primary);font-size:13px;font-weight:600;padding:6px 12px;border-radius:30px;letter-spacing:.02em;margin-bottom:12px}
.section-title{font-size:30px;font-weight:700;line-height:1.35;margin-bottom:12px;letter-spacing:-.01em}
.section-sub{color:var(--text-muted);font-size:16px;max-width:680px}
.section-head{max-width:720px;margin-bottom:40px}
.section-head.center{margin-left:auto;margin-right:auto;text-align:center}
@media(max-width:991.98px){
  .section-block{--section-pad:56px;padding-top:var(--section-pad);padding-bottom:var(--section-pad)}
}
@media(max-width:575.98px){
  .section-title{font-size:24px}
  .container{padding-left:16px;padding-right:16px}
}

/* ---------- Header ---------- */
.site-header{
  position:sticky;
  top:0;
  z-index:1040;
  background:#fff;
  border-bottom:1px solid var(--border);
  box-shadow:0 2px 10px rgba(23,55,93,.03);
}
.header-top{
  transition:max-height .25s ease,opacity .2s ease,padding .2s ease;
  max-height:80px;
  opacity:1;
  overflow:hidden;
}
.header-stuck .header-top{
  max-height:0;
  opacity:0;
  border-bottom:none;
}
.header-top-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
  min-height:52px;
}
.brand-lockup{display:inline-flex;align-items:center;gap:8px;min-width:0}
.brand-mark{
  width:30px;height:30px;border-radius:8px;
  background:var(--primary);color:#fff;font-weight:700;
  display:inline-flex;align-items:center;justify-content:center;font-size:17px;
  flex-shrink:0;
}
.brand-text{font-weight:700;font-size:17px;letter-spacing:.01em;white-space:nowrap;color:var(--text)}
.brand-domain{
  background:var(--body-bg);border:1px solid var(--border);
  color:var(--text-muted);font-size:11px;letter-spacing:.03em;
  padding:3px 8px;border-radius:30px;white-space:nowrap;
}
.header-tools{display:flex;align-items:center;gap:14px}
.header-date{font-size:13px;color:var(--text-muted);display:inline-flex;align-items:center;gap:6px}
.secure-tip{font-size:13px;color:var(--teal);display:inline-flex;align-items:center;gap:4px;background:var(--teal-soft);padding:4px 10px;border-radius:30px}
.header-login-btn{height:36px;font-size:14px;padding:0 14px}
.header-nav{border-top:1px solid var(--border);background:#fff;transition:box-shadow .25s}
.header-stuck .header-nav{box-shadow:0 6px 14px rgba(23,55,93,.06)}
.nav-row{display:flex;align-items:center;justify-content:space-between;gap:16px;min-height:54px}
.main-nav{display:flex;align-items:center;gap:24px;margin:0;padding:0;list-style:none;flex-wrap:nowrap}
.main-nav .nav-item{
  position:relative;display:inline-flex;align-items:center;height:54px;
  font-weight:600;font-size:15px;color:var(--text);padding:0 2px;
}
.main-nav .nav-item::after{
  content:"";position:absolute;left:0;right:0;bottom:10px;height:3px;
  background:var(--primary);border-radius:99px;opacity:0;
  transform:scaleX(.55);transition:opacity .2s,transform .2s;
}
.main-nav .nav-item:hover,.main-nav .nav-item.active{color:var(--primary)}
.main-nav .nav-item.active::after,.main-nav .nav-item:hover::after{opacity:1;transform:scaleX(1)}
.nav-tools{display:flex;align-items:center;gap:14px}
.search-form{
  display:flex;align-items:center;background:#F1F5FA;border:1px solid transparent;
  border-radius:30px;height:36px;padding-left:12px;width:232px;transition:border-color .2s,background .2s;
}
.search-form:focus-within{background:#fff;border-color:var(--primary)}
.search-form input{border:none;outline:none;background:transparent;flex:1;font-size:13px;color:var(--text);min-width:0}
.search-form button{border:none;background:transparent;color:var(--text-muted);padding:0 10px;cursor:pointer;transition:color .2s}
.search-form button:hover{color:var(--primary)}
.hot-links{display:flex;align-items:center;gap:6px;flex-wrap:nowrap;white-space:nowrap}
.hot-item{
  font-size:12px;background:var(--primary-soft);color:var(--primary);
  padding:5px 11px;border-radius:20px;display:inline-flex;align-items:center;gap:4px;
  transition:background .2s,color .2s;
}
.hot-item:hover{background:var(--primary);color:#fff}
.menu-toggle{
  display:inline-flex;align-items:center;justify-content:center;
  width:38px;height:38px;background:var(--primary-soft);border-radius:9px;
  color:var(--primary);font-size:20px;border:none;
}
.mobile-hotbar{border-top:1px solid var(--border);background:#fff;padding:8px 0;display:none}
.mobile-hotbar .hot-row-nowrap{display:flex;gap:8px;overflow-x:auto;scrollbar-width:none}
.mobile-hotbar .hot-row-nowrap::-webkit-scrollbar{display:none}
@media(max-width:991.98px){
  .main-nav{display:none}
  .nav-desktop-tools{display:none!important}
  .mobile-hotbar{display:block}
  .header-top-inner{min-height:50px}
}
@media(min-width:992px){
  .menu-toggle{display:none}
}

/* mobile offcanvas */
.mobile-offcanvas{background:var(--body-bg);width:310px!important}
.mobile-offcanvas .offcanvas-header{border-bottom:1px solid var(--border);background:#fff;height:60px}
.mobile-offcanvas .brand-lockup{flex-wrap:nowrap}
.mobile-offcanvas .offcanvas-body{padding:20px}
.mobile-nav-links{display:flex;flex-direction:column;gap:6px;margin-bottom:18px}
.mobile-nav-links a{
  display:flex;align-items:center;gap:10px;
  padding:12px 14px;background:#fff;border:1px solid var(--border);
  border-radius:10px;color:var(--text);font-weight:600;font-size:15px;
}
.mobile-nav-links a.active,.mobile-nav-links a:hover{background:var(--primary-soft);border-color:var(--primary);color:var(--primary)}
.mobile-panel-title{font-size:14px;font-weight:700;margin-bottom:12px;color:var(--text)}
.mobile-hot-col{display:flex;flex-wrap:wrap;gap:8px}
.mobile-hot-col a{font-size:13px;background:#fff;border:1px solid var(--border);border-radius:20px;padding:6px 12px;color:var(--primary)}
.btn-close:focus{box-shadow:none}

/* ---------- Hero banner ---------- */
.category-hero{
  position:relative;
  background:
    linear-gradient(105deg, rgba(255,255,255,.98) 0%, rgba(245,248,255,.96) 58%, rgba(235,243,255,.88) 100%),
    url('/assets/images/backpic/back-2.webp') center / cover no-repeat;
  padding:52px 0 0;
  overflow:hidden;
  border-bottom:1px solid var(--border);
}
.hero-breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:var(--text-muted);margin-bottom:22px;flex-wrap:wrap}
.hero-breadcrumb a{color:var(--text-muted)}
.hero-breadcrumb a:hover,.hero-breadcrumb .active{color:var(--primary)}
.hero-breadcrumb i{font-size:11px;color:#A6B4C4}
.hero-category-badge{display:inline-flex;align-items:center;gap:7px;background:#fff;border:1px solid var(--border);box-shadow:var(--shadow-sm);color:var(--primary);font-size:13px;font-weight:600;padding:6px 14px;border-radius:30px;margin-bottom:16px}
.hero-title{font-size:38px;font-weight:700;line-height:1.3;letter-spacing:-.02em;margin-bottom:16px}
.hero-sub{color:var(--text-muted);font-size:16px;max-width:590px;margin-bottom:24px}
.hero-trust{list-style:none;margin:0 0 28px;padding:0;display:flex;flex-wrap:wrap;gap:10px 22px}
.hero-trust li{display:flex;align-items:center;gap:6px;font-size:14px;color:#47586A}
.hero-trust li i{color:var(--teal)}
.hero-action{display:flex;flex-wrap:wrap;gap:12px}
.hero-visual{position:relative;padding-bottom:32px}
.safe-check-card{
  background:var(--white);
  border:1px solid var(--border);
  border-radius:22px;
  box-shadow:var(--shadow-lg);
  padding:28px;
  margin-left:auto;
  max-width:430px;
  position:relative;
  z-index:2;
}
.safe-check-card::before{
  content:"";position:absolute;right:-12px;bottom:-12px;width:80%;height:80%;
  background:rgba(45,111,240,.08);border-radius:22px;z-index:-1;
}
.check-card-title{display:flex;align-items:center;gap:8px;font-size:17px;font-weight:700;margin-bottom:18px}
.check-card-title i{color:var(--teal);font-size:21px}
.check-list{margin:0;padding:0;list-style:none}
.check-list li{display:flex;align-items:center;justify-content:space-between;gap:16px;padding:11px 0;border-bottom:1px dashed var(--border)}
.check-list li:last-child{border-bottom:none}
.check-item-label{font-size:14px;color:var(--text-muted)}
.check-item-value{font-size:14px;font-weight:600;text-align:right}
.check-item-value small{display:block;font-weight:400;color:var(--text-muted);font-size:12px}
.hero-stat-row{
  position:relative;z-index:3;
  background:#fff;border:1px solid var(--border);border-radius:16px;
  box-shadow:var(--shadow-sm);
  display:grid;grid-template-columns:repeat(4,1fr);
  margin-top:28px;overflow:hidden;
}
.hero-stat{padding:20px 18px;text-align:center;border-left:1px solid var(--border)}
.hero-stat:first-child{border-left:none}
.hero-stat i{font-size:22px;color:var(--primary);display:block;margin-bottom:6px}
.hero-stat strong{display:block;font-size:17px;line-height:1.4}
.hero-stat span{font-size:13px;color:var(--text-muted)}
@media(max-width:575.98px){
  .hero-title{font-size:28px}
  .safe-check-card{padding:22px}
  .check-list li{flex-direction:column;align-items:flex-start;gap:2px;padding:10px 0}
  .check-item-value{text-align:left}
  .hero-stat-row{grid-template-columns:1fr 1fr}
  .hero-stat:nth-child(3){border-left:none;border-top:1px solid var(--border)}
  .hero-stat:nth-child(2){border-right:1px solid var(--border)}
  .hero-stat:nth-child(4){border-top:1px solid var(--border);border-left:1px solid var(--border)}
}

/* ---------- Feature alternating ---------- */
.feature-stack{display:grid;gap:60px}
.feature-item{display:grid;grid-template-columns:1fr 1fr;gap:48px;align-items:center}
.feature-media{border-radius:18px;overflow:hidden;box-shadow:var(--shadow-sm);border:1px solid #eef2f7;background:#fff}
.feature-media img{width:100%;height:320px;object-fit:cover}
.feature-num{font-size:14px;font-weight:700;color:var(--primary);display:flex;align-items:center;gap:6px;margin-bottom:8px}
.feature-num i{width:6px;height:6px;background:var(--primary);border-radius:50%}
.feature-title{font-size:22px;font-weight:700;line-height:1.4;margin-bottom:12px}
.feature-text{color:var(--text-muted);font-size:15px;margin-bottom:16px}
.feature-points{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.feature-points li{display:flex;align-items:flex-start;gap:8px;font-size:14px;color:#47586A}
.feature-points li i{color:var(--teal);margin-top:5px}
@media(max-width:991.98px){
  .feature-item{grid-template-columns:1fr;gap:24px}
  .feature-media img{height:230px}
}

/* ---------- steps ---------- */
.steps-section{background:linear-gradient(180deg,#fff,var(--primary-lighter))}
.steps-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:24px}
.step-card{
  background:#fff;border:1px solid var(--border);border-radius:18px;padding:32px 26px;
  box-shadow:var(--shadow-sm);position:relative;transition:box-shadow .25s,transform .25s;
}
.step-card:hover{box-shadow:var(--shadow-md);transform:translateY(-3px)}
.step-num{
  width:48px;height:48px;border-radius:14px;display:flex;align-items:center;justify-content:center;
  background:var(--primary);color:#fff;font-weight:700;font-size:20px;margin-bottom:18px;
}
.step-card:nth-child(2) .step-num{background:var(--teal)}
.step-card:nth-child(3) .step-num{background:var(--amber)}
.step-title{font-size:18px;font-weight:700;margin-bottom:10px}
.step-text{color:var(--text-muted);font-size:14px}
@media(max-width:991.98px){.steps-grid{grid-template-columns:1fr}}
@media(max-width:575.98px){.step-card{padding:24px}}

/* ---------- scenario cards ---------- */
.scenario-grid{
  display:grid;grid-template-columns:repeat(12,1fr);gap:20px;
}
.scenario-card{
  background:#fff;border:1px solid var(--border);border-radius:18px;
  padding:28px;box-shadow:var(--shadow-sm);transition:box-shadow .2s,border-color .2s,transform .2s;
}
.scenario-card:hover{box-shadow:var(--shadow-md);border-color:#CBD9E8;transform:translateY(-2px)}
.scenario-card.col-span-6{grid-column:span 6}
.scenario-card:nth-child(2){grid-column:span 6}
.scenario-card:nth-child(3){grid-column:span 7}
.scenario-card:nth-child(4){grid-column:span 5}
.scenario-icon{
  width:46px;height:46px;border-radius:12px;background:var(--primary-soft);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:22px;margin-bottom:16px;
}
.scenario-card:nth-child(2) .scenario-icon{background:var(--amber-soft);color:var(--amber)}
.scenario-card:nth-child(3) .scenario-icon{background:var(--teal-soft);color:var(--teal)}
.scenario-card:nth-child(4) .scenario-icon{background:#FDEFF0;color:#E66A6A}
.scenario-title{font-size:18px;font-weight:700;margin-bottom:10px}
.scenario-text{color:var(--text-muted);font-size:14px;margin-bottom:12px}
.scenario-link{font-size:13px;font-weight:600;color:var(--primary);display:inline-flex;align-items:center;gap:5px}
.scenario-link:hover{gap:8px;color:var(--primary-dark)}
@media(max-width:991.98px){
  .scenario-card.col-span-6,.scenario-card:nth-child(2),.scenario-card:nth-child(3),.scenario-card:nth-child(4){grid-column:span 6}
}
@media(max-width:767.98px){
  .scenario-card.col-span-6,.scenario-card:nth-child(2),.scenario-card:nth-child(3),.scenario-card:nth-child(4){grid-column:span 12}
}

/* ---------- alerts / notices ---------- */
.alert-layout{display:grid;grid-template-columns:1fr 320px;gap:32px;align-items:start}
.security-alert-list{background:#fff;border:1px solid var(--border);border-radius:18px;box-shadow:var(--shadow-sm);padding:10px 24px}
.alert-row{display:flex;gap:14px;padding:17px 0;border-bottom:1px solid #EEF2F8}
.alert-row:last-child{border-bottom:none}
.alert-row .date-pill{flex-shrink:0;width:50px;height:44px;border-radius:10px;background:var(--primary-soft);color:var(--primary);display:flex;flex-direction:column;align-items:center;justify-content:center;font-size:12px;line-height:1.2}
.alert-row .alert-main{min-width:0}
.alert-row h4{font-size:15px;font-weight:600;margin-bottom:2px}
.alert-row h4 a:hover{color:var(--primary)}
.alert-row p{color:var(--text-muted);font-size:13px;margin-bottom:0}
.side-stack{display:grid;gap:20px}
.safe-tip-card{background:var(--amber-soft);border:1px solid #FAE3BC;border-radius:16px;padding:24px;color:#6D5A33}
.safe-tip-card h4{font-weight:700;font-size:16px;display:flex;gap:6px;align-items:center;margin-bottom:10px}
.safe-tip-card p{font-size:14px;color:#7D6C48;margin-bottom:0}
.quick-helper-card{background:#fff;border:1px solid var(--border);border-radius:16px;padding:24px;box-shadow:var(--shadow-sm)}
.quick-helper-card h4{font-size:16px;font-weight:700;margin-bottom:12px}
.quick-helper-list{list-style:none;margin:0;padding:0;display:grid;gap:10px}
.quick-helper-list a{display:flex;align-items:center;gap:8px;font-size:14px;color:#47586A}
.quick-helper-list a:hover{color:var(--primary)}
.quick-helper-list i{color:var(--primary)}
@media(max-width:767.98px){
  .alert-layout{grid-template-columns:1fr}
  .security-alert-list{padding:4px 18px}
}

/* ---------- route table ---------- */
.table-shell{background:#fff;border:1px solid var(--border);border-radius:18px;overflow:hidden;box-shadow:var(--shadow-sm)}
.route-table{width:100%;margin:0;border-collapse:collapse;font-size:14px}
.route-table thead th{
  background:#223349;color:#fff;font-weight:600;padding:15px 20px;text-align:left;white-space:nowrap;
}
.route-table tbody td{padding:16px 20px;color:#47586A;border-bottom:1px solid #EFF3F8;vertical-align:top}
.route-table tbody tr:last-child td{border-bottom:none}
.route-table tbody tr:hover td{background:var(--primary-lighter)}
.route-table td strong{color:var(--text)}
.route-table .sys-label{display:inline-flex;background:var(--primary-soft);color:var(--primary);font-size:12px;font-weight:600;padding:3px 10px;border-radius:20px}
@media(max-width:767.98px){
  .route-table thead th{padding:12px 16px;font-size:13px}
  .route-table tbody td{padding:13px 16px;font-size:13px}
  .table-shell{overflow-x:auto}
  .route-table{min-width:680px}
}

/* ---------- FAQ ---------- */
.faq-accordion{display:grid;gap:14px}
.faq-accordion .accordion-item{
  border:1px solid var(--border);border-radius:14px!important;background:#fff;overflow:hidden;
  box-shadow:0 2px 8px rgba(23,55,93,.03);transition:border-color .25s,box-shadow .25s;
}
.faq-accordion .accordion-item:has(.accordion-button:not(.collapsed)){
  border-color:var(--primary);box-shadow:0 8px 22px rgba(23,55,93,.08);
}
.faq-accordion .accordion-button{
  background:#fff;color:var(--text);font-size:16px;font-weight:700;
  padding:16px 20px;display:flex;align-items:center;gap:10px;
  border-radius:14px!important;box-shadow:none;
}
.faq-accordion .accordion-button:not(.collapsed){background:#fff;color:var(--primary)}
.faq-accordion .accordion-button:not(.collapsed)::after{
  transform:rotate(180deg);background-image:none;
}
.faq-accordion .accordion-button::after{
  background-image:none;content:"\f282";
  font-family:"bootstrap-icons" !important;
  display:inline-flex;align-items:center;justify-content:center;
  color:var(--primary);font-size:17px;
  transition:transform .2s;
  flex-shrink:0;width:18px;height:18px;margin-left:auto;
}
.faq-q-icon{
  width:28px;height:28px;border-radius:8px;background:var(--primary-soft);color:var(--primary);
  display:inline-flex;align-items:center;justify-content:center;font-size:15px;flex-shrink:0;
}
.faq-accordion .accordion-body{background:#fff;padding:4px 20px 20px 58px;color:#526272;font-size:15px}
@media(max-width:575.98px){
  .faq-accordion .accordion-button{padding:14px 14px;font-size:15px}
  .faq-accordion .accordion-body{padding:2px 14px 16px 14px}
}

/* ---------- CTA / floating ---------- */
.cta-box{
  display:flex;align-items:center;justify-content:space-between;gap:24px;flex-wrap:wrap;
  background:linear-gradient(120deg,#EDF4FF 0%,#E2EDFF 100%);
  border:1px solid #D9E7FC;border-radius:20px;padding:40px 46px;
  position:relative;overflow:hidden;
}
.cta-box:before{
  content:"\F3E7";font-family:"bootstrap-icons" !important;
  position:absolute;right:-20px;bottom:-28px;font-size:150px;color:rgba(45,111,240,.05);
  line-height:1;
}
.cta-text h3{font-size:24px;font-weight:700;margin-bottom:6px}
.cta-text p{margin:0;color:var(--text-muted)}
.cta-action{display:flex;gap:12px;flex-wrap:wrap;position:relative;z-index:1}
.float-cta{
  position:fixed;right:24px;bottom:24px;z-index:1075;
  display:inline-flex;align-items:center;gap:8px;
  background:var(--amber);color:#2B2320;font-weight:700;font-size:15px;
  height:50px;padding:0 20px;border-radius:50px;
  box-shadow:0 8px 24px rgba(245,166,35,.38);
  transition:transform .2s,box-shadow .2s;
}
.float-cta:hover{transform:translateY(-2px);box-shadow:0 12px 28px rgba(245,166,35,.44);color:#fff}
@media(max-width:575.98px){
  .cta-box{padding:28px 22px}
  .cta-action{width:100%}
  .cta-action .btn{flex:1}
  .float-cta{
    left:14px;right:14px;bottom:10px;border-radius:12px;justify-content:center;height:48px;
  }
  body{padding-bottom:56px}
}

/* ---------- Footer ---------- */
.site-footer{background:#EFF3F8;margin-top:0}
.footer-columns{
  display:grid;grid-template-columns:1.5fr .8fr .8fr 1.1fr;
  gap:34px;padding:56px 0 40px;
}
.footer-about .brand-text{display:block;font-size:18px;font-weight:700;color:#1F2A36;margin-bottom:4px}
.footer-about .brand-domain{
  display:inline-flex;margin-bottom:12px;background:#F3F6FB;border-color:#E1E7EF;color:#7B8794;
}
.footer-desc{color:#7B8794;font-size:14px;max-width:360px}
.footer-title{font-size:15px;font-weight:700;margin-bottom:16px}
.footer-links{list-style:none;padding:0;margin:0}
.footer-links li{margin-bottom:10px}
.footer-links a{color:#687688;font-size:14px;display:inline-flex;align-items:center;gap:2px}
.footer-links a i{color:#9AA7B8;font-size:12px;transition:transform .2s}
.footer-links a:hover{color:var(--primary)}
.footer-links a:hover i{transform:translateX(3px)}
.footer-contact p{margin-bottom:10px;color:#687688;font-size:14px;line-height:1.6}
.footer-safe-tip{
  background:#FFF4E2;border:1px solid #F7DEAC;border-radius:10px;color:#8A6D3A;
  padding:12px 14px;font-size:13px;display:flex;gap:8px;line-height:1.6;
}
.footer-bottom{background:#E5EAF0;padding:18px 0;text-align:center}
.footer-bottom .copyright-line{color:#7B8794;font-size:13px}
.footer-bottom .copyright-line span{color:#B5C0CD;padding:0 6px}
@media(max-width:991.98px){
  .footer-columns{grid-template-columns:1fr 1fr;padding:44px 0 24px}
}
@media(max-width:575.98px){
  .footer-columns{grid-template-columns:1fr;gap:24px}
  .footer-bottom .copyright-line span{display:none}
}