/* roulang page: index */
:root{
  --primary:#1E8FF0;--primary-light:#E8F3FE;--primary-dark:#0E7AD9;
  --accent:#FF6B35;--accent-dark:#E55525;
  --bg:#F5F8FC;--white:#FFFFFF;
  --text-dark:#0B1F33;--text-body:#41546A;--text-muted:#7A8EA5;
  --border:#E5EEF7;
  --radius-lg:20px;--radius-md:12px;--radius-sm:8px;--radius-pill:999px;
  --shadow:0 6px 24px rgba(16,88,145,0.08);--shadow-hover:0 12px 32px rgba(16,88,145,0.14);
  --transition:all .2s ease;
  --font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font-family);background-color:var(--bg);color:var(--text-body);
  line-height:1.75;font-size:16px;-webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:inherit;transition:var(--transition);}
a:hover{color:var(--primary);}
img{max-width:100%;height:auto;display:block;}
button,input,select,textarea{font-family:inherit;font-size:inherit;}
.container{max-width:1200px;padding-left:24px;padding-right:24px;}
@media(min-width:1400px){.container{max-width:1280px;}}

/* ==== Header ==== */
.site-header{position:sticky;top:0;z-index:1050;background:var(--white);box-shadow:0 2px 12px rgba(16,88,145,0.06);}
.header-top{background:var(--white);}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:16px;}
.brand-logo{display:flex;align-items:center;gap:10px;font-size:26px;font-weight:800;color:var(--text-dark);flex-shrink:0;}
.brand-logo i{color:var(--primary);font-size:28px;}
.brand-logo span{letter-spacing:.5px;}
.brand-logo:hover{color:var(--primary);}
.search-form{flex:1;max-width:420px;margin:0 auto;position:relative;}
.search-form input{
  width:100%;height:40px;border:1px solid var(--border);border-radius:var(--radius-pill);
  padding:0 44px 0 18px;font-size:14px;background:var(--bg);color:var(--text-dark);transition:var(--transition);
}
.search-form input:focus{outline:none;border-color:var(--primary);background:var(--white);box-shadow:0 0 0 3px rgba(30,143,240,.15);}
.search-form button{
  position:absolute;right:4px;top:50%;transform:translateY(-50%);width:32px;height:32px;
  border:none;border-radius:50%;background:var(--primary);color:#fff;font-size:14px;cursor:pointer;transition:var(--transition);
}
.search-form button:hover{background:var(--primary-dark);}
.header-cta{flex-shrink:0;}
.header-nav{background:var(--white);border-top:1px solid var(--border);}
.channel-tabs{
  display:flex;gap:8px;padding:8px 0;overflow-x:auto;scrollbar-width:none;-webkit-overflow-scrolling:touch;
}
.channel-tabs::-webkit-scrollbar{display:none;}
.channel-tabs .tab{
  display:inline-flex;align-items:center;gap:6px;padding:8px 20px;border-radius:var(--radius-pill);
  font-size:14px;font-weight:600;color:var(--text-muted);white-space:nowrap;transition:var(--transition);border:1px solid transparent;
}
.channel-tabs .tab:hover{color:var(--primary);background:var(--primary-light);}
.channel-tabs .tab.active{background:rgba(30,143,240,.12);color:var(--primary);box-shadow:0 2px 8px rgba(30,143,240,.12);}
.channel-tabs .tab i{font-size:12px;}
.header-scrolled .header-top-inner{height:56px;}
.header-scrolled .header-nav{box-shadow:0 4px 16px rgba(16,88,145,.08);}

/* ==== Buttons ==== */
.btn{display:inline-flex;align-items:center;justify-content:center;gap:8px;border-radius:var(--radius-md);font-weight:600;padding:12px 28px;height:48px;line-height:1.2;transition:var(--transition);border:2px solid transparent;font-size:15px;}
.btn:focus{outline:none;box-shadow:0 0 0 4px rgba(30,143,240,.4);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-primary-custom{background:var(--primary);color:#fff;border-color:var(--primary);}
.btn-primary-custom:hover{background:var(--primary-dark);border-color:var(--primary-dark);color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-hover);}
.btn-outline{background:transparent;color:var(--primary);border-color:var(--primary);}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary);}
.btn-white-outline{background:transparent;color:#fff;border-color:rgba(255,255,255,.7);}
.btn-white-outline:hover{background:rgba(255,255,255,.15);color:#fff;border-color:#fff;}
.btn-lg{height:54px;padding:0 40px;font-size:17px;border-radius:14px;}
.btn-sm{height:38px;padding:0 18px;font-size:14px;border-radius:10px;}

/* ==== Hero ==== */
.hero-section{
  position:relative;background:linear-gradient(108deg,rgba(10,28,48,.92) 0%,rgba(30,143,240,.82) 60%,rgba(14,159,219,.72) 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color:#fff;padding:100px 0 64px;overflow:hidden;
}
.hero-section::after{content:'';position:absolute;right:-80px;top:-80px;width:300px;height:300px;background:rgba(255,107,53,.25);border-radius:50%;filter:blur(60px);pointer-events:none;}
.hero-section .container{position:relative;z-index:2;}
.hero-badge{display:inline-flex;align-items:center;gap:8px;background:rgba(255,255,255,.15);border:1px solid rgba(255,255,255,.25);border-radius:var(--radius-pill);padding:6px 16px;font-size:13px;font-weight:500;margin-bottom:20px;backdrop-filter:blur(4px);}
.hero-badge i{color:var(--accent);}
.hero-title{font-size:40px;font-weight:800;line-height:1.25;color:#fff;margin-bottom:16px;letter-spacing:1px;}
.hero-title span{color:var(--accent);}
.hero-subtitle{font-size:16px;line-height:1.8;color:rgba(255,255,255,.92);max-width:520px;margin-bottom:28px;}
.hero-actions{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:40px;}
.hero-stats{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-top:16px;}
.hero-stat-item{background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.18);border-radius:var(--radius-md);padding:18px 16px;text-align:center;backdrop-filter:blur(6px);transition:var(--transition);}
.hero-stat-item:hover{background:rgba(255,255,255,.18);transform:translateY(-2px);}
.hero-stat-num{font-size:26px;font-weight:800;color:#fff;display:block;line-height:1.2;}
.hero-stat-num .unit{font-size:16px;font-weight:600;margin-left:2px;color:var(--accent);}
.hero-stat-label{font-size:13px;color:rgba(255,255,255,.78);margin-top:4px;display:block;}
.hero-panel-card{
  background:var(--white);border-radius:var(--radius-lg);padding:32px;box-shadow:var(--shadow);
  border:1px solid rgba(255,255,255,.4);position:relative;margin-left:20px;
}
.hero-panel-card::before{content:'';position:absolute;top:20px;left:-12px;width:24px;height:24px;background:var(--white);transform:rotate(45deg);border-left:1px solid rgba(255,255,255,.4);border-bottom:1px solid rgba(255,255,255,.4);}
.hero-panel-card h3{font-size:20px;color:var(--text-dark);font-weight:700;margin-bottom:16px;display:flex;align-items:center;gap:8px;}
.hero-panel-card h3 i{color:var(--primary);}
.hero-panel-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:14px;}
.hero-panel-list li{display:flex;align-items:flex-start;gap:12px;font-size:14px;color:var(--text-body);line-height:1.6;}
.hero-panel-list li i{color:var(--accent);margin-top:4px;font-size:14px;flex-shrink:0;}
.hero-panel-card .panel-note{margin-top:20px;padding-top:16px;border-top:1px dashed var(--border);font-size:13px;color:var(--text-muted);text-align:center;}

/* ==== Section Base ==== */
.section{padding:96px 0;}
.section-alt{background:var(--bg);}
.section-head{margin-bottom:52px;text-align:center;max-width:680px;margin-left:auto;margin-right:auto;}
.section-head .section-sub{font-size:13px;font-weight:600;color:var(--primary);text-transform:uppercase;letter-spacing:2px;margin-bottom:8px;display:block;}
.section-head h2{font-size:32px;font-weight:800;color:var(--text-dark);line-height:1.35;margin-bottom:12px;}
.section-head p{font-size:16px;line-height:1.7;color:var(--text-muted);}

/* ==== Steps Timeline ==== */
.steps-section{background:var(--white);}
.steps-timeline{position:relative;padding-left:40px;}
.steps-timeline::before{content:'';position:absolute;left:18px;top:0;bottom:0;width:2px;background:var(--border);}
.step-row{position:relative;margin-bottom:48px;}
.step-row:last-child{margin-bottom:0;}
.step-marker{position:absolute;left:-40px;top:18px;width:36px;height:36px;border-radius:50%;background:var(--white);border:2px solid var(--primary);display:flex;align-items:center;justify-content:center;font-size:13px;font-weight:700;color:var(--primary);z-index:2;transition:var(--transition);}
.step-row:hover .step-marker{background:var(--primary);color:#fff;}
.step-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:32px;transition:var(--transition);overflow:hidden;}
.step-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-3px);}
.step-card h3{font-size:22px;font-weight:700;color:var(--text-dark);margin-bottom:12px;}
.step-card h3 span{color:var(--accent);font-weight:800;margin-right:8px;}
.step-card p{font-size:14px;color:var(--text-body);line-height:1.75;margin-bottom:16px;}
.step-card .step-meta{display:flex;flex-wrap:wrap;gap:8px;}
.step-card .step-meta .badge{background:var(--primary-light);color:var(--primary);font-weight:600;font-size:12px;padding:4px 12px;border-radius:var(--radius-pill);}
.step-card img{border-radius:var(--radius-md);object-fit:cover;height:100%;min-height:140px;width:100%;}
.step-card .img-wrap{overflow:hidden;border-radius:var(--radius-md);height:100%;min-height:160px;}
.step-card .img-wrap img{width:100%;height:100%;object-fit:cover;transition:var(--transition);}
.step-card .img-wrap:hover img{transform:scale(1.05);}

/* ==== News Section ==== */
.news-section{background:var(--bg);}
.news-item{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-md);padding:20px;transition:var(--transition);display:block;height:100%;}
.news-item:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);border-color:transparent;}
.news-item h4{font-size:15px;font-weight:700;color:var(--text-dark);line-height:1.5;margin-bottom:8px;}
.news-item h4:hover{color:var(--primary);}
.news-item p{font-size:13px;color:var(--text-muted);line-height:1.6;margin-bottom:12px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}
.news-item .news-meta{display:flex;align-items:center;gap:10px;font-size:12px;color:var(--text-muted);}
.news-item .news-meta .badge-cat{background:var(--primary-light);color:var(--primary);font-size:11px;font-weight:600;padding:2px 10px;border-radius:var(--radius-pill);}
.news-item .news-meta time{display:flex;align-items:center;gap:4px;}
.news-item .news-meta time i{font-size:11px;}
.news-featured{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);height:100%;display:block;}
.news-featured:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px);}
.news-featured .featured-img{position:relative;overflow:hidden;aspect-ratio:16/8;}
.news-featured .featured-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.news-featured:hover .featured-img img{transform:scale(1.04);}
.news-featured .featured-body{padding:24px;}
.news-featured .featured-body .badge-cat{display:inline-block;background:var(--accent);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--radius-pill);margin-bottom:12px;}
.news-featured .featured-body h4{font-size:20px;font-weight:700;color:var(--text-dark);line-height:1.5;margin-bottom:10px;}
.news-featured .featured-body p{font-size:14px;color:var(--text-muted);line-height:1.7;margin-bottom:16px;}
.news-featured .featured-body .news-meta{display:flex;align-items:center;gap:10px;font-size:13px;color:var(--text-muted);}
.empty-state{background:var(--white);border:1px dashed var(--border);border-radius:var(--radius-lg);padding:60px 24px;text-align:center;width:100%;}
.empty-state i{font-size:42px;color:var(--text-muted);margin-bottom:16px;display:block;opacity:.5;}
.empty-state p{font-size:16px;color:var(--text-muted);margin:0;}
.news-list-stack{display:flex;flex-direction:column;gap:16px;}

/* ==== Cases ==== */
.cases-section{background:var(--white);}
.case-card{background:var(--white);border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);height:100%;}
.case-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-6px);}
.case-card .case-img{position:relative;overflow:hidden;aspect-ratio:16/9;}
.case-card .case-img img{width:100%;height:100%;object-fit:cover;transition:transform .4s ease;}
.case-card:hover .case-img img{transform:scale(1.05);}
.case-card .case-tag{position:absolute;top:16px;left:16px;background:rgba(255,107,53,.92);color:#fff;font-size:12px;font-weight:600;padding:4px 12px;border-radius:var(--radius-pill);letter-spacing:.5px;}
.case-card .case-body{padding:24px;}
.case-card .case-body h4{font-size:17px;font-weight:700;color:var(--text-dark);margin-bottom:8px;}
.case-card .case-body p{font-size:13px;color:var(--text-muted);line-height:1.65;margin-bottom:16px;}
.case-data{background:var(--bg);border-radius:var(--radius-md);padding:16px;text-align:center;}
.case-data .num{font-size:30px;font-weight:800;color:var(--accent);display:block;line-height:1.2;}
.case-data .label{font-size:12px;color:var(--text-muted);margin-top:4px;display:block;}

/* ==== FAQ ==== */
.faq-section{background:var(--bg);}
.accordion{--bs-accordion-border-width:0;--bs-accordion-btn-padding-y:1.25rem;}
.accordion-item{border:1px solid var(--border)!important;border-radius:var(--radius-md)!important;margin-bottom:14px;overflow:hidden;background:var(--white);box-shadow:0 2px 8px rgba(16,88,145,.04);}
.accordion-item:last-child{margin-bottom:0;}
.accordion-button{font-size:15px;font-weight:600;color:var(--text-dark);background:var(--white);padding:18px 24px;transition:var(--transition);}
.accordion-button:not(.collapsed){background:var(--primary-light);color:var(--primary);box-shadow:none;}
.accordion-button:focus{box-shadow:0 0 0 3px rgba(30,143,240,.25);z-index:2;}
.accordion-button::after{background-image:none;font-family:'Font Awesome 6 Free';font-weight:900;content:'\f078';font-size:14px;color:var(--primary);transition:var(--transition);width:auto;height:auto;margin-left:auto;}
.accordion-button:not(.collapsed)::after{transform:rotate(180deg);}
.accordion-body{font-size:14px;line-height:1.8;color:var(--text-body);padding:0 24px 20px;}
.faq-note{text-align:center;margin-top:36px;font-size:15px;color:var(--text-muted);}
.faq-note a{color:var(--primary);font-weight:600;border-bottom:1px dashed var(--primary);}
.faq-note a:hover{border-bottom-style:solid;color:var(--accent);}

/* ==== CTA Section ==== */
.cta-section{background:linear-gradient(120deg,var(--primary) 0%,var(--primary-dark) 100%);position:relative;overflow:hidden;color:#fff;}
.cta-section::before{content:'';position:absolute;top:-60px;right:-40px;width:220px;height:220px;background:rgba(255,255,255,.08);border-radius:50%;}
.cta-section::after{content:'';position:absolute;bottom:-80px;left:20%;width:180px;height:180px;background:rgba(255,107,53,.25);border-radius:50%;filter:blur(40px);}
.cta-inner{position:relative;z-index:2;text-align:center;padding:80px 24px;}
.cta-inner h2{font-size:32px;font-weight:800;color:#fff;margin-bottom:12px;}
.cta-inner p{font-size:16px;color:rgba(255,255,255,.9);margin-bottom:32px;max-width:640px;margin-left:auto;margin-right:auto;}
.cta-buttons{display:flex;flex-wrap:wrap;gap:16px;justify-content:center;margin-bottom:20px;}
.cta-note{font-size:13px;color:rgba(255,255,255,.7);display:flex;align-items:center;justify-content:center;gap:6px;}
.cta-note i{color:rgba(255,255,255,.9);}

/* ==== Footer ==== */
.site-footer{background:var(--text-dark);color:rgba(255,255,255,.75);padding-top:70px;font-size:14px;}
.footer-brand{margin-bottom:24px;}
.footer-brand .logo{display:flex;align-items:center;gap:10px;color:#fff;font-size:22px;font-weight:800;margin-bottom:12px;}
.footer-brand .logo i{color:var(--accent);}
.footer-brand p{line-height:1.8;font-size:13px;color:rgba(255,255,255,.6);max-width:320px;}
.footer-col h4{color:#fff;font-size:16px;font-weight:700;margin-bottom:20px;position:relative;padding-bottom:10px;}
.footer-col h4::after{content:'';position:absolute;bottom:0;left:0;width:28px;height:3px;background:var(--accent);border-radius:2px;}
.footer-col ul{list-style:none;padding:0;margin:0;display:flex;flex-direction:column;gap:10px;}
.footer-col ul li a{color:rgba(255,255,255,.6);font-size:14px;display:inline-flex;align-items:center;gap:6px;transition:var(--transition);}
.footer-col ul li a:hover{color:var(--primary-light);padding-left:4px;}
.footer-col ul li a i{font-size:8px;color:var(--accent);}
.footer-col .contact-item{display:flex;align-items:center;gap:10px;color:rgba(255,255,255,.6);font-size:14px;margin-bottom:10px;}
.footer-col .contact-item i{color:var(--accent);width:16px;text-align:center;}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);padding:20px 0;margin-top:50px;font-size:13px;color:rgba(255,255,255,.5);}
.footer-bottom .container{display:flex;align-items:center;justify-content:space-between;flex-wrap:wrap;gap:8px;}

/* ==== Responsive ==== */
@media(max-width:991px){
  .section{padding:72px 0;}
  .hero-section{padding:70px 0 48px;}
  .hero-title{font-size:30px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);}
  .hero-panel-card{margin-left:0;margin-top:32px;}
  .news-list-stack{margin-top:20px;}
}
@media(max-width:767px){
  .section{padding:56px 0;}
  .header-top-inner{height:58px;}
  .search-form{display:none;}
  .brand-logo{font-size:20px;}
  .brand-logo i{font-size:22px;}
  .header-cta .btn{padding:0 14px;font-size:13px;height:34px;border-radius:8px;}
  .channel-tabs .tab{padding:6px 16px;font-size:13px;}
  .hero-title{font-size:26px;}
  .hero-subtitle{font-size:15px;}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:10px;}
  .hero-stat-num{font-size:20px;}
  .hero-stat-label{font-size:12px;}
  .section-head h2{font-size:26px;}
  .section-head p{font-size:14px;}
  .steps-timeline{padding-left:32px;}
  .step-marker{left:-32px;width:30px;height:30px;font-size:11px;}
  .step-card{padding:20px;}
  .step-card h3{font-size:17px;}
  .step-card .img-wrap{min-height:120px;margin-top:12px;}
  .cta-inner{padding:56px 16px;}
  .cta-inner h2{font-size:24px;}
  .cta-inner p{font-size:14px;}
  .footer-bottom .container{flex-direction:column;text-align:center;}
  .footer-col{margin-bottom:28px;}
  .footer-col:last-child{margin-bottom:0;}
  .footer-brand p{max-width:100%;}
}
@media(max-width:520px){
  .header-top-inner{gap:10px;}
  .brand-logo span{font-size:16px;}
  .header-cta .btn{display:none;}
  .hero-actions .btn{width:100%;}
  .hero-panel-card{padding:20px;}
  .case-data .num{font-size:24px;}
}

/* roulang page: category1 */
:root {
  --color-primary: #1E8FF0;
  --color-primary-deep: #1677c9;
  --color-primary-light: #E8F4FD;
  --color-accent: #FF6B35;
  --color-accent-dark: #e85d2c;
  --color-bg: #F5F8FC;
  --color-white: #FFFFFF;
  --color-title: #0B1F33;
  --color-body: #41546A;
  --color-muted: #7A8EA5;
  --color-border: #E5EEF7;
  --radius-lg: 20px;
  --radius-md: 12px;
  --radius-pill: 999px;
  --shadow-sm: 0 6px 24px rgba(16, 88, 145, 0.08);
  --shadow-lg: 0 12px 32px rgba(16, 88, 145, 0.14);
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --space-section: 100px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--color-bg);
  color: var(--color-body);
  line-height: 1.75;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color 0.2s ease;
}

a:hover {
  color: var(--color-primary);
}

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

button,
input {
  font-family: inherit;
}

.container {
  max-width: 1240px;
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: var(--color-white);
  box-shadow: 0 2px 12px rgba(16, 88, 145, 0.05);
  transition: box-shadow 0.3s ease;
}

.site-header.sticky {
  box-shadow: 0 6px 20px rgba(16, 88, 145, 0.10);
}

.header-top {
  border-bottom: 1px solid var(--color-border);
}

.header-top-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
  gap: 24px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 800;
  color: var(--color-title);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.brand-logo i {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--color-primary), #0E9FDB);
  color: #fff;
  border-radius: 12px;
  font-size: 18px;
  box-shadow: 0 4px 14px rgba(30, 143, 240, 0.25);
}

.search-form {
  position: relative;
  width: 380px;
  max-width: 100%;
}

.search-form input {
  width: 100%;
  height: 42px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  background: #f7fafd;
  padding: 0 46px 0 20px;
  font-size: 14px;
  color: var(--color-title);
  transition: all 0.2s ease;
}

.search-form input:focus {
  outline: none;
  border-color: var(--color-primary);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(30, 143, 240, 0.10);
}

.search-form button {
  position: absolute;
  right: 6px;
  top: 50%;
  transform: translateY(-50%);
  width: 32px;
  height: 32px;
  border: none;
  background: var(--color-primary);
  color: #fff;
  border-radius: 50%;
  font-size: 13px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease;
}

.search-form button:hover {
  background: var(--color-primary-deep);
}

.header-cta {
  flex-shrink: 0;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-md);
  font-weight: 600;
  font-size: 15px;
  height: 48px;
  padding: 0 28px;
  border: 2px solid transparent;
  transition: all 0.25s ease;
  cursor: pointer;
}

.btn:focus-visible {
  outline: none;
  box-shadow: 0 0 0 4px rgba(30, 143, 240, 0.30);
}

.btn-accent {
  background: var(--color-accent);
  color: #fff !important;
  border-color: var(--color-accent);
}

.btn-accent:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255, 107, 53, 0.25);
}

.btn-outline {
  background: #fff;
  color: var(--color-primary) !important;
  border-color: var(--color-primary);
}

.btn-outline:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
}

.btn-sm {
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
  border-radius: 10px;
}

/* ===== Header Nav / Channel Tabs ===== */
.header-nav {
  background: #fff;
}

.channel-tabs {
  display: flex;
  align-items: center;
  gap: 8px;
  height: 52px;
  overflow-x: auto;
  scrollbar-width: none;
  -ms-overflow-style: none;
  white-space: nowrap;
}

.channel-tabs::-webkit-scrollbar {
  display: none;
}

.tab {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 22px;
  border-radius: var(--radius-pill);
  font-size: 15px;
  font-weight: 600;
  color: var(--color-body);
  transition: all 0.2s ease;
  flex-shrink: 0;
}

.tab i {
  font-size: 14px;
}

.tab:hover {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.tab.active {
  background: var(--color-primary-light);
  color: var(--color-primary);
  box-shadow: 0 2px 8px rgba(30, 143, 240, 0.10);
}

/* ===== Category Hero ===== */
.category-hero {
  padding: 80px 0 72px;
  background:
    linear-gradient(120deg, rgba(30, 143, 240, 0.06) 0%, rgba(245, 248, 252, 0) 60%),
    var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 20px;
}

.category-hero h1 {
  font-size: 44px;
  font-weight: 800;
  color: var(--color-title);
  line-height: 1.25;
  margin-bottom: 20px;
  letter-spacing: 1px;
}

.hero-desc {
  font-size: 17px;
  color: var(--color-body);
  line-height: 1.8;
  margin-bottom: 18px;
  max-width: 640px;
}

.hero-sub {
  color: var(--color-muted);
  font-size: 15px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 32px;
}

.hero-panel {
  background: var(--color-white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: 24px;
  border: 1px solid var(--color-border);
}

.hero-panel-img {
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 20px;
  position: relative;
}

.hero-panel-img img {
  width: 100%;
  height: 200px;
  object-fit: cover;
  display: block;
}

.hero-metrics {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.metric-box {
  background: #f7fafd;
  border-radius: var(--radius-md);
  padding: 16px 14px;
  text-align: center;
}

.metric-box .num {
  font-size: 28px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.2;
}

.metric-box .label {
  font-size: 13px;
  color: var(--color-muted);
  margin-top: 4px;
}

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

.feature-section .section-head {
  text-align: center;
  margin-bottom: 48px;
}

.feature-section .section-head h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-title);
  margin-bottom: 12px;
}

.feature-section .section-head p {
  color: var(--color-muted);
  font-size: 16px;
  max-width: 560px;
  margin: 0 auto;
}

.feature-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 28px 24px;
  box-shadow: var(--shadow-sm);
  height: 100%;
  transition: all 0.25s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(30, 143, 240, 0.25);
}

.feature-icon {
  width: 54px;
  height: 54px;
  border-radius: 14px;
  background: var(--color-primary-light);
  color: var(--color-primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  margin-bottom: 18px;
}

.feature-card h3 {
  font-size: 19px;
  font-weight: 700;
  color: var(--color-title);
  margin-bottom: 10px;
}

.feature-card p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ===== Filter Pills ===== */
.filter-section {
  padding: 0 0 60px;
}

.filter-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
  justify-content: center;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 8px 22px;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  font-size: 14px;
  font-weight: 600;
  color: var(--color-body);
  cursor: default;
  transition: all 0.2s ease;
}

.pill.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
  box-shadow: 0 4px 12px rgba(30, 143, 240, 0.20);
}

.pill:not(.active):hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
  background: var(--color-primary-light);
}

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

.section-head {
  margin-bottom: 40px;
}

.section-head h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--color-title);
  margin-bottom: 10px;
}

.section-head p {
  color: var(--color-muted);
  font-size: 15px;
  max-width: 620px;
}

.article-card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: all 0.25s ease;
}

.article-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.article-card .card-img {
  position: relative;
  height: 190px;
  overflow: hidden;
}

.article-card .card-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}

.article-card:hover .card-img img {
  transform: scale(1.04);
}

.card-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: rgba(255, 107, 53, 0.92);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  z-index: 2;
}

.card-body {
  padding: 20px 20px 24px;
  display: flex;
  flex-direction: column;
  flex: 1;
}

.article-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--color-title);
  line-height: 1.5;
  margin-bottom: 10px;
  transition: color 0.2s ease;
}

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

.article-card .card-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

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

.card-meta i {
  margin-right: 4px;
  font-size: 12px;
}

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

.faq-section .section-head {
  text-align: center;
}

.faq-section .section-head p {
  margin: 0 auto;
}

.faq-list {
  max-width: 860px;
  margin: 0 auto;
}

.custom-accordion .accordion-item {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md) !important;
  margin-bottom: 14px;
  box-shadow: 0 2px 8px rgba(16, 88, 145, 0.03);
  overflow: hidden;
  background: var(--color-white);
}

.custom-accordion .accordion-button {
  background: var(--color-white);
  color: var(--color-title);
  font-weight: 600;
  font-size: 16px;
  padding: 20px 24px;
  border: none;
  box-shadow: none;
}

.custom-accordion .accordion-button:not(.collapsed) {
  background: var(--color-primary-light);
  color: var(--color-primary);
}

.custom-accordion .accordion-button:focus {
  box-shadow: 0 0 0 4px rgba(30, 143, 240, 0.10);
  border-color: var(--color-primary);
}

.custom-accordion .accordion-button::after {
  color: var(--color-accent);
  background-size: 16px;
}

.custom-accordion .accordion-body {
  padding: 4px 24px 22px;
  font-size: 15px;
  line-height: 1.8;
  color: var(--color-body);
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
}

.faq-note {
  text-align: center;
  margin-top: 28px;
  font-size: 15px;
  color: var(--color-muted);
}

.faq-note a {
  color: var(--color-primary);
  font-weight: 600;
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 72px 0 80px;
  background: linear-gradient(135deg, #1E8FF0 0%, #0E9FDB 100%);
  border-radius: 0;
}

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

.cta-section h2 {
  font-size: 32px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 14px;
}

.cta-section .cta-desc {
  color: rgba(255, 255, 255, 0.9);
  font-size: 16px;
  max-width: 600px;
  margin-bottom: 32px;
  line-height: 1.8;
}

.cta-form {
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.20);
  border-radius: 20px;
  padding: 28px;
  backdrop-filter: blur(4px);
  max-width: 560px;
}

.cta-form .form-label {
  color: #fff;
  font-weight: 600;
  font-size: 14px;
  margin-bottom: 6px;
}

.cta-form .form-control {
  height: 48px;
  border-radius: var(--radius-md);
  border: 1px solid rgba(255, 255, 255, 0.35);
  background: rgba(255, 255, 255, 0.95);
  font-size: 15px;
  padding: 0 16px;
}

.cta-form .form-control:focus {
  border-color: #fff;
  box-shadow: 0 0 0 4px rgba(255, 255, 255, 0.20);
}

.cta-form .btn-accent {
  width: 100%;
  margin-top: 8px;
}

.cta-privacy {
  color: rgba(255, 255, 255, 0.75);
  font-size: 13px;
  margin-top: 14px;
  text-align: center;
}

.form-tip {
  color: #fff;
  font-size: 14px;
  padding: 10px 0 0;
  display: none;
}

.form-tip.visible {
  display: block;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--color-title);
  color: #c6d4e0;
  padding-top: 64px;
  font-size: 14px;
}

.site-footer .footer-brand .logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}

.site-footer .footer-brand .logo i {
  width: 36px;
  height: 36px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--color-primary);
  color: #fff;
  border-radius: 10px;
  font-size: 16px;
}

.site-footer .footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: #93a7b9;
  max-width: 360px;
}

.footer-col h4 {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 18px;
}

.footer-col ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

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

.footer-col ul li a {
  color: #93a7b9;
  font-size: 14px;
  transition: all 0.2s ease;
}

.footer-col ul li a i {
  margin-right: 4px;
  font-size: 12px;
  color: var(--color-primary);
}

.footer-col ul li a:hover {
  color: #fff;
  padding-left: 3px;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #93a7b9;
  margin-bottom: 12px;
  font-size: 14px;
}

.contact-item i {
  color: var(--color-primary);
  width: 16px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
  margin-top: 48px;
  padding: 22px 0;
}

.footer-bottom .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 13px;
  color: #7d92a8;
}

/* ===== Responsive ===== */
@media (max-width: 991.98px) {
  :root {
    --space-section: 72px;
  }

  .header-top-inner {
    height: 60px;
    gap: 16px;
  }

  .brand-logo {
    font-size: 18px;
  }

  .brand-logo i {
    width: 34px;
    height: 34px;
    font-size: 15px;
  }

  .search-form {
    width: 240px;
  }

  .category-hero {
    padding: 60px 0 48px;
  }

  .category-hero h1 {
    font-size: 36px;
  }

  .hero-panel {
    margin-top: 32px;
  }

  .feature-section .section-head h2,
  .section-head h2,
  .faq-section .section-head h2,
  .cta-section h2 {
    font-size: 28px;
  }
}

@media (max-width: 767.98px) {
  :root {
    --space-section: 56px;
  }

  .header-top-inner {
    flex-wrap: wrap;
    height: auto;
    padding: 12px 0;
  }

  .brand-logo {
    width: 100%;
  }

  .search-form {
    flex: 1;
    width: auto;
    order: 3;
  }

  .header-cta .btn-sm {
    height: 38px;
    padding: 0 16px;
  }

  .channel-tabs {
    height: 48px;
  }

  .tab {
    padding: 7px 16px;
    font-size: 14px;
  }

  .category-hero {
    padding: 40px 0 40px;
  }

  .category-hero h1 {
    font-size: 30px;
  }

  .hero-desc {
    font-size: 15px;
  }

  .hero-actions .btn {
    width: 100%;
  }

  .hero-panel-img img {
    height: 180px;
  }

  .metric-box .num {
    font-size: 22px;
  }

  .feature-card {
    padding: 20px;
  }

  .filter-pills {
    justify-content: flex-start;
    overflow-x: auto;
    flex-wrap: nowrap;
    padding-bottom: 8px;
    scrollbar-width: none;
  }

  .filter-pills::-webkit-scrollbar {
    display: none;
  }

  .pill {
    flex-shrink: 0;
  }

  .article-card .card-img {
    height: 170px;
  }

  .cta-section {
    padding: 48px 0 56px;
  }

  .cta-form {
    padding: 20px;
  }

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

@media (max-width: 575.98px) {
  .category-hero h1 {
    font-size: 26px;
  }

  .section-head h2 {
    font-size: 24px;
  }

  .hero-panel {
    padding: 16px;
  }

  .hero-metrics {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .feature-section .section-head h2 {
    font-size: 24px;
  }

  .cta-section h2 {
    font-size: 24px;
  }

  .custom-accordion .accordion-button {
    font-size: 15px;
    padding: 16px 18px;
  }

  .custom-accordion .accordion-body {
    padding: 4px 18px 16px;
  }
}

/* roulang page: article */
:root{
  --primary:#1E8FF0;
  --primary-light:#EAF5FE;
  --primary-dark:#0A6BC4;
  --accent:#FF6B35;
  --accent-dark:#E5551F;
  --accent-light:#FFF2ED;
  --bg:#F5F8FC;
  --card-bg:#FFFFFF;
  --text:#0B1F33;
  --text-body:#41546A;
  --text-muted:#7A8EA5;
  --border:#E5EEF7;
  --radius-lg:20px;
  --radius-md:12px;
  --radius-sm:8px;
  --radius-pill:999px;
  --shadow:0 6px 24px rgba(16,88,145,.08);
  --shadow-hover:0 12px 32px rgba(16,88,145,.14);
  --transition:all .2s ease;
  --font:"PingFang SC","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}
*,*::before,*::after{box-sizing:border-box;}
html{scroll-behavior:smooth;}
body{
  font-family:var(--font);
  background:var(--bg);
  color:var(--text-body);
  line-height:1.75;
  font-size:16px;
  -webkit-font-smoothing:antialiased;
}
a{text-decoration:none;color:var(--primary);transition:var(--transition);}
a:hover{color:var(--primary-dark);}
img{max-width:100%;height:auto;}
.container{max-width:1200px;}
.btn{
  display:inline-flex;align-items:center;justify-content:center;gap:8px;
  font-weight:600;border-radius:var(--radius-md);border:1px solid transparent;
  cursor:pointer;transition:var(--transition);line-height:1.2;font-size:15px;
}
.btn:focus-visible{outline:none;box-shadow:0 0 0 4px rgba(30,143,240,.35);}
.btn-accent{background:var(--accent);color:#fff;}
.btn-accent:hover{background:var(--accent-dark);color:#fff;transform:translateY(-2px);box-shadow:0 8px 20px rgba(255,107,53,.25);}
.btn-outline{background:#fff;border-color:var(--primary);color:var(--primary);height:48px;padding:0 28px;font-size:15px;}
.btn-outline:hover{background:var(--primary-light);color:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-2px);}
.btn-sm{height:38px;padding:0 18px;font-size:14px;}

.site-header{position:sticky;top:0;z-index:1030;background:#fff;transition:box-shadow .25s ease;}
.site-header.scrolled{box-shadow:0 6px 24px rgba(16,88,145,.08);}
.header-top{background:#fff;height:64px;transition:height .25s ease;}
.header-top-inner{display:flex;align-items:center;justify-content:space-between;height:64px;gap:24px;transition:height .25s ease;}
.site-header.scrolled .header-top{height:56px;}
.site-header.scrolled .header-top-inner{height:56px;}
.brand-logo{display:inline-flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:var(--text);letter-spacing:.5px;flex-shrink:0;transition:var(--transition);}
.brand-logo:hover{color:var(--text);}
.brand-logo i{width:40px;height:40px;display:inline-flex;align-items:center;justify-content:center;background:linear-gradient(135deg,var(--primary),#56B6F8);color:#fff;border-radius:12px;font-size:18px;box-shadow:0 4px 12px rgba(30,143,240,.25);}
.brand-logo span{color:var(--text);}
.search-form{flex:1;max-width:420px;position:relative;margin:0 auto;}
.search-form input{width:100%;height:40px;border:1px solid var(--border);border-radius:var(--radius-pill);background:#F4F8FC;padding:0 46px 0 18px;font-size:14px;color:var(--text);outline:none;transition:var(--transition);}
.search-form input:focus{border-color:var(--primary);background:#fff;box-shadow:0 0 0 4px rgba(30,143,240,.12);}
.search-form input[type="search"]::-webkit-search-cancel-button{display:none;}
.search-form button{position:absolute;right:4px;top:50%;transform:translateY(-50%);width:32px;height:32px;border:none;background:transparent;color:var(--text-muted);border-radius:50%;cursor:pointer;transition:var(--transition);}
.search-form button:hover{color:var(--primary);background:var(--primary-light);}
.header-cta{flex-shrink:0;}
.header-nav{background:#fff;border-top:1px solid var(--border);position:relative;}
.header-nav::after{content:"";position:absolute;right:0;top:0;bottom:10px;width:32px;pointer-events:none;background:linear-gradient(to left,rgba(255,255,255,.95),transparent);opacity:0;transition:opacity .2s;z-index:2;}
.channel-tabs{display:flex;gap:8px;padding:6px 0;min-height:48px;align-items:center;overflow-x:auto;white-space:nowrap;scrollbar-width:none;-ms-overflow-style:none;}
.channel-tabs::-webkit-scrollbar{display:none;}
.tab{display:inline-flex;align-items:center;gap:6px;height:36px;padding:0 16px;border-radius:var(--radius-pill);font-size:14px;font-weight:500;color:var(--text-body);transition:var(--transition);flex-shrink:0;border:1px solid transparent;}
.tab:hover{background:var(--primary-light);color:var(--primary);border-color:rgba(30,143,240,.18);}
.tab i{font-size:13px;}
.tab.active{background:rgba(30,143,240,.12);color:var(--primary);font-weight:600;box-shadow:inset 0 0 0 1px rgba(30,143,240,.2);}

.article-page{padding:32px 0 40px;background:var(--bg);}
.breadcrumb-nav{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-muted);margin-bottom:24px;padding:12px 0;flex-wrap:wrap;}
.breadcrumb-nav a{color:var(--text-muted);}
.breadcrumb-nav a:hover{color:var(--primary);}
.breadcrumb-nav i{font-size:12px;color:#C0D2E4;}
.breadcrumb-nav .current{color:var(--text);font-weight:500;max-width:280px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}

.article-panel{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);box-shadow:var(--shadow);padding:48px;margin-bottom:32px;max-width:860px;margin-left:auto;margin-right:auto;}
.article-header{margin-bottom:36px;padding-bottom:28px;border-bottom:1px solid var(--border);}
.article-meta{display:flex;align-items:center;gap:16px;flex-wrap:wrap;margin-bottom:16px;font-size:13px;color:var(--text-muted);}
.badge-category{display:inline-flex;align-items:center;gap:6px;background:rgba(30,143,240,.1);color:var(--primary);padding:4px 12px;border-radius:var(--radius-pill);font-size:13px;font-weight:600;}
.meta-date i,.meta-views i{margin-right:4px;opacity:.7;}
.article-header h1{font-size:36px;font-weight:800;color:var(--text);line-height:1.3;margin:0 0 16px;letter-spacing:.2px;}
.article-lead{font-size:16px;color:var(--text-body);line-height:1.8;margin:0;}

.article-content{font-size:16.5px;line-height:1.9;color:var(--text-body);word-break:break-word;}
.article-content h2{font-size:26px;font-weight:700;color:var(--text);margin:40px 0 16px;padding-left:14px;border-left:4px solid var(--primary);line-height:1.4;}
.article-content h3{font-size:21px;font-weight:600;color:var(--text);margin:32px 0 14px;}
.article-content h4{font-size:18px;font-weight:600;color:var(--text);margin:24px 0 12px;}
.article-content p{margin-bottom:20px;color:var(--text-body);}
.article-content img{border-radius:var(--radius-md);box-shadow:var(--shadow);margin:24px auto;display:block;}
.article-content blockquote{border-left:4px solid var(--accent);background:var(--accent-light);padding:16px 20px;border-radius:0 var(--radius-md) var(--radius-md) 0;margin:24px 0;color:#6B4A3A;font-style:italic;}
.article-content ul,.article-content ol{padding-left:24px;margin-bottom:20px;}
.article-content li{margin-bottom:8px;}
.article-content table{width:100%;border-collapse:collapse;margin:24px 0;font-size:15px;}
.article-content th,.article-content td{border:1px solid var(--border);padding:12px 16px;text-align:left;}
.article-content th{background:var(--primary-light);color:var(--text);font-weight:600;}
.article-content a{color:var(--primary);text-decoration:underline;text-underline-offset:2px;}
.article-content a:hover{color:var(--primary-dark);}

.article-footer{display:flex;align-items:center;justify-content:space-between;gap:20px;margin-top:36px;padding-top:24px;border-top:1px solid var(--border);flex-wrap:wrap;}
.article-tags{display:flex;flex-wrap:wrap;gap:8px;}
.tag{display:inline-flex;align-items:center;background:var(--bg);border:1px solid var(--border);color:var(--text-body);padding:4px 12px;border-radius:var(--radius-pill);font-size:13px;transition:var(--transition);}
.tag:hover{background:var(--primary-light);color:var(--primary);border-color:transparent;}
.article-share{display:flex;align-items:center;gap:8px;font-size:14px;color:var(--text-muted);}
.share-icon{width:34px;height:34px;display:inline-flex;align-items:center;justify-content:center;border:1px solid var(--border);border-radius:50%;color:var(--text-muted);transition:var(--transition);background:#fff;font-size:14px;}
.share-icon:hover{background:var(--primary);color:#fff;border-color:var(--primary);transform:translateY(-2px);}

.article-cta{max-width:860px;margin:0 auto 32px;background:linear-gradient(135deg,#1E8FF0,#56B6F8);border-radius:var(--radius-lg);padding:28px 32px;display:flex;align-items:center;justify-content:space-between;gap:20px;color:#fff;box-shadow:0 12px 32px rgba(30,143,240,.2);}
.article-cta h3{font-size:20px;font-weight:700;margin:0 0 6px;color:#fff;}
.article-cta p{font-size:14px;margin:0;opacity:.95;}
.article-cta .btn-accent{flex-shrink:0;}

.related-section{padding:16px 0 20px;}
.section-head{margin-bottom:32px;}
.section-head h2{font-size:28px;font-weight:700;color:var(--text);margin:0 0 8px;}
.section-head p{color:var(--text-muted);margin:0;}
.related-card{background:#fff;border:1px solid var(--border);border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow);transition:var(--transition);display:block;height:100%;}
.related-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-hover);border-color:rgba(30,143,240,.25);}
.related-thumb{width:100%;height:180px;object-fit:cover;display:block;}
.related-info{padding:20px;}
.related-info .badge-category{background:var(--primary-light);}
.related-info h3{font-size:17px;font-weight:600;color:var(--text);line-height:1.5;margin:12px 0 8px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;transition:var(--transition);}
.related-card:hover .related-info h3{color:var(--primary);}
.related-info p{font-size:14px;color:var(--text-muted);line-height:1.6;margin:0;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;}

.article-back{padding:24px 0 80px;}
.article-back .container{display:flex;gap:16px;justify-content:center;flex-wrap:wrap;}

.article-empty{background:#fff;border:1px dashed var(--border);border-radius:var(--radius-lg);padding:80px 32px;text-align:center;max-width:860px;margin:0 auto 60px;box-shadow:var(--shadow);}
.article-empty i{font-size:56px;color:var(--primary);opacity:.4;margin-bottom:20px;display:inline-block;}
.article-empty h1{font-size:28px;color:var(--text);margin-bottom:12px;font-weight:700;}
.article-empty p{color:var(--text-muted);margin-bottom:24px;}
.article-empty .btn{height:48px;padding:0 28px;}

.site-footer{background:#0B1F33;color:#B9C7D6;padding:64px 0 0;margin-top:20px;}
.footer-brand .logo{display:inline-flex;align-items:center;gap:10px;font-size:22px;font-weight:800;color:#fff;}
.footer-brand .logo:hover{color:#fff;}
.footer-brand .logo i{color:var(--primary);}
.footer-brand p{font-size:14px;line-height:1.8;margin-top:16px;max-width:360px;color:#B9C7D6;}
.footer-col h4{color:#fff;font-size:16px;font-weight:600;margin-bottom:16px;}
.footer-col ul{list-style:none;padding:0;margin:0;}
.footer-col ul li{margin-bottom:10px;}
.footer-col ul a{color:#B9C7D6;font-size:14px;}
.footer-col ul a:hover{color:var(--primary);padding-left:4px;}
.footer-col ul a i{font-size:12px;margin-right:4px;color:var(--primary);}
.contact-item{font-size:14px;color:#B9C7D6;margin-bottom:10px;}
.contact-item i{width:20px;color:var(--primary);margin-right:6px;}
.footer-bottom{background:rgba(0,0,0,.2);padding:18px 0;margin-top:48px;font-size:13px;color:#8CA0B3;}
.footer-bottom .container{display:flex;justify-content:space-between;align-items:center;gap:12px;flex-wrap:wrap;}

@media (max-width:991.98px){
  .header-nav::after{opacity:1;}
  .article-header h1{font-size:32px;}
}

@media (max-width:767.98px){
  .header-top{height:auto;padding:12px 0 0;}
  .header-top-inner{height:auto;flex-wrap:wrap;gap:12px;}
  .search-form{order:3;flex-basis:100%;max-width:100%;margin:4px 0 10px;}
  .search-form input{height:38px;}
  .site-header.scrolled .header-top{height:auto;}
  .site-header.scrolled .header-top-inner{height:auto;}
  .article-page{padding:20px 0 24px;}
  .breadcrumb-nav{margin-bottom:16px;}
  .article-panel{padding:24px;}
  .article-header h1{font-size:26px;}
  .article-meta{gap:10px;}
  .article-content{font-size:15.5px;}
  .article-content h2{font-size:22px;}
  .article-footer{flex-direction:column;align-items:flex-start;}
  .article-cta{flex-direction:column;text-align:center;padding:24px;}
  .article-cta .btn-accent{width:100%;}
  .related-section .row{--bs-gutter-y:16px;}
  .footer-bottom .container{justify-content:center;text-align:center;}
}

@media (max-width:575.98px){
  .header-top-inner{gap:8px;}
  .brand-logo{font-size:18px;}
  .brand-logo i{width:36px;height:36px;font-size:16px;border-radius:10px;}
  .header-cta .btn-sm{height:34px;padding:0 14px;font-size:13px;}
  .article-panel{padding:20px;}
  .article-header h1{font-size:24px;}
  .article-lead{font-size:15px;}
  .article-content table{display:block;overflow-x:auto;white-space:nowrap;}
  .article-back .btn{width:100%;}
}