/* roulang page: index */
:root{
  --primary:#0d1b2a;
  --primary-light:#1b3a5c;
  --accent:#f5a623;
  --accent-dark:#d98e16;
  --bg:#f7f9fc;
  --bg-deep:#0b1622;
  --white:#ffffff;
  --text:#1e293b;
  --text-light:#64748b;
  --border:#e2e8f0;
  --radius:16px;
  --radius-sm:10px;
  --shadow:0 8px 30px rgba(13,27,42,.08);
  --shadow-lg:0 16px 40px rgba(13,27,42,.14);
  --transition:.28s cubic-bezier(.4,0,.2,1);
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;font-size:16px}
body{
  font-family:"PingFang SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  background:var(--bg);
  color:var(--text);
  line-height:1.7;
  -webkit-font-smoothing:antialiased;
}
a{color:inherit;text-decoration:none;transition:color var(--transition)}
img{max-width:100%;display:block}
button,input,select,textarea{font-family:inherit;font-size:inherit}
.container{max-width:1280px;margin:0 auto;padding:0 24px;width:100%}
.grid-container{max-width:1280px}
.section{padding:96px 0}
.section-alt{background:var(--white)}
.section-head{text-align:center;max-width:720px;margin:0 auto 56px}
.section-head .section-tag{
  display:inline-block;
  background:rgba(245,166,35,.12);
  color:var(--accent-dark);
  font-size:13px;
  font-weight:700;
  padding:6px 18px;
  border-radius:40px;
  letter-spacing:1px;
  margin-bottom:16px;
  text-transform:uppercase;
}
.section-head h2{
  font-size:38px;
  font-weight:800;
  color:var(--primary);
  line-height:1.3;
  letter-spacing:-.5px;
  margin-bottom:14px;
}
.section-head p{font-size:16px;color:var(--text-light);line-height:1.8}
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  font-size:15px;
  font-weight:700;
  padding:14px 32px;
  border-radius:50px;
  border:none;
  cursor:pointer;
  transition:all var(--transition);
  line-height:1.2;
}
.btn-accent{
  background:linear-gradient(135deg,var(--accent),#ffbe4d);
  color:var(--primary);
  box-shadow:0 6px 20px rgba(245,166,35,.35);
}
.btn-accent:hover{transform:translateY(-3px);box-shadow:0 10px 28px rgba(245,166,35,.45);color:var(--primary)}
.btn-outline{
  background:transparent;
  color:var(--white);
  border:2px solid rgba(255,255,255,.65);
}
.btn-outline:hover{background:rgba(255,255,255,.12);border-color:#fff;transform:translateY(-3px)}
.btn-dark{
  background:var(--primary);
  color:var(--white);
}
.btn-dark:hover{background:var(--primary-light);transform:translateY(-3px);box-shadow:var(--shadow)}
/* header */
.header{
  position:fixed;
  top:0;left:0;right:0;
  z-index:1000;
  background:rgba(13,27,42,.96);
  backdrop-filter:blur(14px);
  border-bottom:1px solid rgba(255,255,255,.08);
  transition:box-shadow .3s ease;
}
.header.scrolled{box-shadow:0 8px 32px rgba(0,0,0,.3)}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  height:72px;
  max-width:1280px;
  margin:0 auto;
  padding:0 24px;
}
.logo{
  font-size:21px;
  font-weight:800;
  color:var(--white);
  display:flex;
  align-items:center;
  gap:8px;
  letter-spacing:.5px;
  white-space:nowrap;
}
.logo i{color:var(--accent);font-size:22px}
.nav-links{display:flex;align-items:center;gap:8px;list-style:none}
.nav-links a{
  display:inline-flex;
  align-items:center;
  gap:6px;
  padding:10px 18px;
  border-radius:40px;
  color:rgba(255,255,255,.78);
  font-size:14px;
  font-weight:600;
  transition:all var(--transition);
}
.nav-links a:hover{color:#fff;background:rgba(255,255,255,.1)}
.nav-links a.active{color:var(--accent);background:rgba(245,166,35,.14)}
.nav-cta{
  background:linear-gradient(135deg,var(--accent),#ffbe4d);
  color:var(--primary) !important;
  font-weight:800;
  padding:10px 24px !important;
  border-radius:40px;
  box-shadow:0 4px 14px rgba(245,166,35,.35);
}
.nav-cta:hover{transform:translateY(-2px);box-shadow:0 8px 20px rgba(245,166,35,.45)}
.menu-toggle{
  display:none;
  background:none;
  border:none;
  color:#fff;
  font-size:24px;
  cursor:pointer;
  padding:6px 10px;
  border-radius:8px;
}
.menu-toggle:focus{outline:2px solid var(--accent);outline-offset:2px}
/* hero */
.hero{
  position:relative;
  min-height:92vh;
  display:flex;
  align-items:center;
  background:linear-gradient(135deg,rgba(13,27,42,.93) 0%,rgba(13,27,42,.75) 55%,rgba(13,27,42,.45) 100%),url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  padding:140px 0 100px;
  overflow:hidden;
}
.hero::after{
  content:'';
  position:absolute;
  bottom:-180px;right:-180px;
  width:460px;height:460px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(245,166,35,.18),transparent 70%);
  pointer-events:none;
}
.hero-content{position:relative;z-index:2;max-width:700px}
.hero-badge{
  display:inline-flex;
  align-items:center;
  gap:8px;
  background:rgba(245,166,35,.18);
  border:1px solid rgba(245,166,35,.4);
  color:#ffd08a;
  font-size:13px;
  font-weight:700;
  padding:7px 18px;
  border-radius:40px;
  margin-bottom:22px;
  letter-spacing:1px;
}
.hero-badge i{color:var(--accent)}
.hero h1{
  font-size:52px;
  font-weight:900;
  color:#fff;
  line-height:1.2;
  letter-spacing:-1px;
  margin-bottom:20px;
}
.hero h1 span{
  color:var(--accent);
  position:relative;
}
.hero p{
  font-size:18px;
  color:rgba(255,255,255,.82);
  line-height:1.85;
  margin-bottom:34px;
  max-width:560px;
}
.hero-btns{display:flex;flex-wrap:wrap;gap:16px}
.hero-meta{
  margin-top:50px;
  display:flex;
  flex-wrap:wrap;
  gap:24px;
  list-style:none;
}
.hero-meta li{
  display:flex;
  align-items:center;
  gap:10px;
  color:rgba(255,255,255,.7);
  font-size:14px;
  font-weight:600;
}
.hero-meta li i{color:var(--accent)}
/* about */
.about-grid{display:flex;align-items:center;gap:60px}
.about-text{flex:1}
.about-text h2{
  font-size:36px;
  font-weight:800;
  color:var(--primary);
  line-height:1.3;
  margin-bottom:18px;
}
.about-text p{color:var(--text-light);font-size:16px;line-height:1.9;margin-bottom:18px}
.about-points{list-style:none;margin-top:28px;display:grid;grid-template-columns:1fr 1fr;gap:16px}
.about-points li{
  display:flex;
  align-items:center;
  gap:12px;
  font-weight:600;
  font-size:15px;
  color:var(--text);
  background:var(--white);
  border-radius:12px;
  padding:16px 18px;
  border:1px solid var(--border);
  box-shadow:0 2px 10px rgba(0,0,0,.03);
}
.about-points i{color:var(--accent);font-size:16px}
.about-media{flex:1;position:relative}
.about-media img{
  border-radius:20px;
  box-shadow:var(--shadow-lg);
  width:100%;
  object-fit:cover;
  aspect-ratio:4/3;
}
.about-media::before{
  content:'';
  position:absolute;
  top:-16px;left:-16px;
  width:140px;height:140px;
  border-radius:20px;
  background:rgba(245,166,35,.15);
  z-index:-1;
}
/* categories */
.categories-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:30px}
.cat-card{
  background:var(--white);
  border-radius:20px;
  overflow:hidden;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  transition:all var(--transition);
  display:flex;
  flex-direction:column;
}
.cat-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg)}
.cat-card-media{position:relative;overflow:hidden;aspect-ratio:16/9}
.cat-card-media img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.cat-card:hover .cat-card-media img{transform:scale(1.06)}
.cat-card-media::after{
  content:'';
  position:absolute;inset:0;
  background:linear-gradient(180deg,transparent 55%,rgba(13,27,42,.55));
}
.cat-card-tag{
  position:absolute;
  top:16px;left:16px;
  background:rgba(245,166,35,.92);
  color:var(--primary);
  font-size:12px;
  font-weight:800;
  padding:5px 14px;
  border-radius:30px;
  z-index:2;
  letter-spacing:.5px;
}
.cat-card-body{padding:28px;flex:1;display:flex;flex-direction:column}
.cat-card-body h3{font-size:20px;font-weight:800;color:var(--primary);margin-bottom:10px}
.cat-card-body p{font-size:14px;color:var(--text-light);line-height:1.7;flex:1;margin-bottom:20px}
.cat-card-btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  font-size:14px;
  font-weight:700;
  color:var(--primary);
  transition:gap .3s;
}
.cat-card-btn:hover{gap:14px;color:var(--accent-dark)}
/* news */
.news-section{background:linear-gradient(180deg,var(--bg) 0%,#eef2f7 100%)}
.news-wrap{background:var(--white);border-radius:24px;box-shadow:var(--shadow);padding:48px;border:1px solid var(--border)}
.news-list{display:grid;grid-template-columns:1fr 1fr;gap:30px}
.news-card{
  background:var(--bg);
  border-radius:16px;
  padding:28px;
  border:1px solid var(--border);
  transition:all var(--transition);
}
.news-card:hover{box-shadow:var(--shadow);transform:translateY(-4px);background:#fff}
.news-meta{display:flex;align-items:center;gap:12px;margin-bottom:12px;flex-wrap:wrap}
.badge-cat{
  background:rgba(245,166,35,.15);
  color:var(--accent-dark);
  font-size:12px;
  font-weight:700;
  padding:4px 12px;
  border-radius:30px;
}
.news-time{font-size:13px;color:var(--text-light);display:flex;align-items:center;gap:6px}
.news-card h3{font-size:18px;font-weight:700;line-height:1.5;margin-bottom:10px}
.news-card h3 a{color:var(--primary)}
.news-card h3 a:hover{color:var(--accent-dark)}
.news-card p{font-size:14px;color:var(--text-light);line-height:1.7;margin-bottom:16px;display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden}
.news-more{
  font-size:14px;font-weight:700;color:var(--accent-dark);
  display:inline-flex;align-items:center;gap:6px;
}
.news-more:hover{gap:12px}
.empty-tip{
  grid-column:1/-1;
  text-align:center;
  padding:60px 20px;
  color:var(--text-light);
  font-size:16px;
  background:var(--bg);
  border-radius:16px;
  border:1px dashed var(--border);
}
/* stats */
.stats{
  background:linear-gradient(135deg,#0b1622,#132134),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  background-blend-mode:overlay;
  padding:90px 0;
  position:relative;
}
.stats-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:40px}
.stat-item{text-align:center;padding:30px 20px;border-radius:20px;background:rgba(255,255,255,.05);border:1px solid rgba(255,255,255,.1);transition:all var(--transition)}
.stat-item:hover{background:rgba(255,255,255,.1);transform:translateY(-6px)}
.stat-item .icon{font-size:34px;color:var(--accent);margin-bottom:14px}
.stat-item .num{font-size:40px;font-weight:900;color:#fff;line-height:1.2}
.stat-item .label{font-size:14px;color:rgba(255,255,255,.65);margin-top:8px;letter-spacing:1px}
/* features */
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.feature-card{
  background:var(--white);
  border-radius:20px;
  padding:36px 28px;
  text-align:center;
  border:1px solid var(--border);
  box-shadow:var(--shadow);
  transition:all var(--transition);
}
.feature-card:hover{transform:translateY(-8px);box-shadow:var(--shadow-lg);border-color:rgba(245,166,35,.3)}
.feature-icon{
  width:72px;height:72px;
  border-radius:20px;
  background:linear-gradient(135deg,var(--primary),var(--primary-light));
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 20px;
  color:var(--accent);
  font-size:28px;
  box-shadow:0 8px 20px rgba(13,27,42,.2);
}
.feature-card h3{font-size:18px;font-weight:800;color:var(--primary);margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--text-light);line-height:1.7}
/* steps */
.steps{
  background:var(--white);
}
.steps-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:30px;position:relative}
.steps-grid::before{
  content:'';
  position:absolute;
  top:52px;left:12%;right:12%;
  height:2px;
  background:linear-gradient(90deg,var(--accent),var(--accent-dark),rgba(245,166,35,.2));
  opacity:.4;
  z-index:0;
}
.step-card{
  text-align:center;
  position:relative;
  z-index:1;
  padding:20px 12px;
}
.step-num{
  width:64px;height:64px;
  border-radius:50%;
  background:var(--primary);
  color:var(--accent);
  font-size:22px;
  font-weight:900;
  display:flex;align-items:center;justify-content:center;
  margin:0 auto 20px;
  border:3px solid var(--accent);
  box-shadow:0 0 0 6px rgba(245,166,35,.15);
}
.step-card h3{font-size:18px;font-weight:800;color:var(--primary);margin-bottom:8px}
.step-card p{font-size:14px;color:var(--text-light);line-height:1.7}
/* faq */
.faq-wrap{max-width:880px;margin:0 auto}
.faq-item{
  background:var(--white);
  border-radius:16px;
  border:1px solid var(--border);
  box-shadow:0 2px 8px rgba(0,0,0,.04);
  margin-bottom:16px;
  overflow:hidden;
  transition:box-shadow var(--transition);
}
.faq-item:hover{box-shadow:var(--shadow)}
.faq-item.active{border-color:rgba(245,166,35,.4)}
.faq-question{
  width:100%;
  background:none;
  border:none;
  padding:22px 26px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  cursor:pointer;
  text-align:left;
  font-size:16px;
  font-weight:700;
  color:var(--primary);
  transition:color var(--transition);
}
.faq-question:focus{outline:2px solid rgba(245,166,35,.5);outline-offset:-2px;border-radius:16px}
.faq-question i{color:var(--accent);transition:transform .3s ease;font-size:16px}
.faq-item.active .faq-question i{transform:rotate(45deg)}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .4s ease;
}
.faq-answer-inner{
  padding:0 26px 24px;
  color:var(--text-light);
  font-size:15px;
  line-height:1.85;
}
/* cta */
.cta-band{
  position:relative;
  background:linear-gradient(135deg,var(--primary) 0%,#1b3a5c 60%,#23486c 100%);
  padding:90px 0;
  text-align:center;
  overflow:hidden;
}
.cta-band::before{
  content:'';
  position:absolute;
  top:-120px;right:-80px;
  width:400px;height:400px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(245,166,35,.2),transparent 70%);
}
.cta-band h2{font-size:36px;font-weight:900;color:#fff;margin-bottom:14px}
.cta-band p{font-size:17px;color:rgba(255,255,255,.75);max-width:560px;margin:0 auto 32px;line-height:1.8}
.cta-btns{display:flex;justify-content:center;gap:16px;flex-wrap:wrap}
/* footer */
.footer{background:#0b1622;color:rgba(255,255,255,.65);padding:60px 0 0}
.footer-grid{display:grid;grid-template-columns:2fr 1fr 1fr;gap:50px;padding-bottom:44px}
.footer-brand .logo{margin-bottom:16px}
.footer-brand p{font-size:14px;line-height:1.8;margin-bottom:20px}
.footer-social{display:flex;gap:12px}
.footer-social a{
  width:40px;height:40px;
  border-radius:50%;
  background:rgba(255,255,255,.08);
  display:flex;align-items:center;justify-content:center;
  color:#fff;
  transition:all var(--transition);
}
.footer-social a:hover{background:var(--accent);color:var(--primary);transform:translateY(-3px)}
.footer-title{font-size:16px;font-weight:800;color:#fff;margin-bottom:20px}
.footer-links{list-style:none}
.footer-links li{margin-bottom:10px}
.footer-links a{font-size:14px;transition:all var(--transition);display:inline-block}
.footer-links a:hover{color:var(--accent);transform:translateX(4px)}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:24px 0;
  text-align:center;
  font-size:13px;
  color:rgba(255,255,255,.4);
}
.footer-bottom a{color:rgba(255,255,255,.5)}
.footer-bottom a:hover{color:var(--accent)}
/* responsive */
@media(max-width:1024px){
  .section{padding:76px 0}
  .categories-grid{grid-template-columns:repeat(2,1fr)}
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .steps-grid{grid-template-columns:repeat(2,1fr);gap:40px 20px}
  .steps-grid::before{display:none}
  .stats-grid{grid-template-columns:repeat(2,1fr);gap:24px}
  .about-grid{flex-direction:column;gap:40px}
  .hero h1{font-size:42px}
}
@media(max-width:768px){
  .section{padding:60px 0}
  .menu-toggle{display:block}
  .nav-links{
    display:none;
    position:absolute;
    top:72px;left:0;right:0;
    flex-direction:column;
    background:var(--primary);
    padding:20px;
    gap:6px;
    border-bottom:1px solid rgba(255,255,255,.1);
    box-shadow:var(--shadow-lg);
  }
  .nav-links.active{display:flex}
  .nav-links a{width:100%;justify-content:center}
  .news-list{grid-template-columns:1fr}
  .section-head h2{font-size:30px}
  .hero{min-height:80vh;padding:120px 0 80px}
  .hero h1{font-size:34px}
  .hero p{font-size:16px}
  .footer-grid{grid-template-columns:1fr;gap:36px}
  .about-points{grid-template-columns:1fr}
  .news-wrap{padding:24px}
  .cta-band h2{font-size:28px}
  .hero-meta{gap:14px}
}
@media(max-width:520px){
  .container{padding:0 16px}
  .categories-grid{grid-template-columns:1fr}
  .features-grid{grid-template-columns:1fr}
  .steps-grid{grid-template-columns:1fr}
  .stats-grid{grid-template-columns:1fr}
  .hero-btns{flex-direction:column}
  .hero-btns .btn{width:100%}
  .section-head h2{font-size:26px}
  .logo{font-size:18px}
  .hero h1{font-size:29px}
  .news-list{grid-template-columns:1fr}
}

/* roulang page: article */
:root {
  --primary: #1e3a8a;
  --primary-dark: #0f1e42;
  --primary-deep: #0a1633;
  --primary-light: #3b82f6;
  --accent: #f59e0b;
  --accent-hover: #d97706;
  --bg: #f4f6fb;
  --bg-deep: #0b1023;
  --white: #ffffff;
  --text: #1e293b;
  --text-light: #64748b;
  --text-lighter: #94a3b8;
  --border: #e2e8f0;
  --radius-sm: 8px;
  --radius: 16px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 10px rgba(15, 23, 42, 0.06);
  --shadow: 0 6px 30px rgba(30, 58, 138, 0.08);
  --shadow-lg: 0 16px 48px rgba(30, 58, 138, 0.14);
  --transition: all 0.3s ease;
  --font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

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

img {
  max-width: 100%;
  height: auto;
  display: block;
  border: 0;
}

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

ul,
ol {
  list-style: none;
}

button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  outline: none;
  background: none;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ===== Header ===== */
.header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
}

.header-inner {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 28px;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

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

.logo i {
  font-size: 26px;
  color: var(--accent);
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

.menu-toggle {
  display: none;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  font-size: 20px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: 1px solid var(--border);
  transition: var(--transition);
}

.menu-toggle:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-links > li {
  padding: 0;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 10px 16px;
  border-radius: 10px;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  transition: var(--transition);
  position: relative;
}

.nav-links a i {
  font-size: 14px;
  color: var(--text-lighter);
  transition: var(--transition);
}

.nav-links a:hover {
  color: var(--primary);
  background: rgba(30, 58, 138, 0.06);
}

.nav-links a:hover i {
  color: var(--primary-light);
}

.nav-links a.active {
  color: var(--primary);
  font-weight: 600;
  background: rgba(30, 58, 138, 0.08);
}

.nav-links a.active::after {
  content: '';
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: 6px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
}

.nav-links a.nav-cta {
  background: linear-gradient(135deg, #f59e0b, #d97706);
  color: #fff;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 999px;
  box-shadow: 0 4px 16px rgba(245, 158, 11, 0.35);
  margin-left: 8px;
}

.nav-links a.nav-cta i {
  color: #fff;
}

.nav-links a.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.45);
  color: #fff;
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
}

/* ===== Article Hero ===== */
.article-hero {
  position: relative;
  padding: 76px 0 60px;
  background: linear-gradient(135deg, var(--primary-deep) 0%, var(--primary-dark) 55%, #1d3fa0 100%);
  overflow: hidden;
}

.article-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.png') center / cover no-repeat;
  opacity: 0.18;
  z-index: 1;
}

.article-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(10, 22, 51, 0.3), rgba(10, 22, 51, 0.6));
  z-index: 2;
}

.article-hero-inner {
  position: relative;
  z-index: 3;
  max-width: 860px;
  margin: 0 auto;
  text-align: center;
}

.article-breadcrumb {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 14px;
  color: rgba(255, 255, 255, 0.7);
  margin-bottom: 26px;
  letter-spacing: 0.5px;
}

.article-breadcrumb a {
  color: rgba(255, 255, 255, 0.8);
  transition: var(--transition);
}

.article-breadcrumb a:hover {
  color: var(--accent);
}

.article-breadcrumb .crumb-sep {
  opacity: 0.5;
}

.article-hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 20px;
  background: rgba(245, 158, 11, 0.18);
  border: 1px solid rgba(245, 158, 11, 0.35);
  border-radius: 999px;
  color: #fbbf24;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  backdrop-filter: blur(6px);
  margin-bottom: 20px;
}

.article-hero-badge i {
  font-size: 15px;
}

.article-hero h1 {
  font-size: 36px;
  font-weight: 800;
  color: #fff;
  line-height: 1.35;
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.25);
  margin-bottom: 18px;
}

.article-hero-meta {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 18px;
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
}

.article-hero-meta span {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.article-hero-meta i {
  color: var(--accent);
}

/* ===== Article Main Section ===== */
.article-section {
  padding: 56px 0 70px;
}

.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 36px;
  align-items: start;
}

.article-main {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 40px 44px;
  box-shadow: var(--shadow);
  border: 1px solid rgba(226, 232, 240, 0.6);
  min-width: 0;
}

.article-body {
  font-size: 16.5px;
  line-height: 1.9;
  color: #334155;
}

.article-body h2 {
  font-size: 25px;
  font-weight: 700;
  color: var(--primary-dark);
  margin: 38px 0 18px;
  padding-bottom: 12px;
  border-bottom: 2px solid rgba(30, 58, 138, 0.12);
  position: relative;
}

.article-body h2::before {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 48px;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), var(--accent-hover));
  border-radius: 2px;
}

.article-body h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--primary);
  margin: 30px 0 14px;
}

.article-body h4 {
  font-size: 17px;
  font-weight: 600;
  color: var(--text);
  margin: 24px 0 12px;
}

.article-body p {
  margin-bottom: 20px;
}

.article-body a {
  color: var(--primary-light);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 3px;
}

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

.article-body ul,
.article-body ol {
  margin: 18px 0 22px;
  padding-left: 26px;
}

.article-body ul {
  list-style: disc;
}

.article-body ol {
  list-style: decimal;
}

.article-body li {
  margin-bottom: 10px;
  position: relative;
}

.article-body ul li::marker {
  color: var(--accent);
}

.article-body blockquote {
  margin: 24px 0;
  padding: 20px 28px;
  background: linear-gradient(135deg, rgba(30, 58, 138, 0.05), rgba(245, 158, 11, 0.05));
  border-left: 4px solid var(--accent);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-style: italic;
  color: var(--text-light);
  position: relative;
}

.article-body blockquote p {
  margin: 0;
}

.article-body img {
  border-radius: var(--radius);
  margin: 26px 0;
  box-shadow: var(--shadow);
}

.article-body table {
  width: 100%;
  border-collapse: collapse;
  margin: 26px 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.article-body table th,
.article-body table td {
  padding: 14px 18px;
  border: 1px solid var(--border);
  text-align: left;
  font-size: 15px;
}

.article-body table th {
  background: var(--primary);
  color: #fff;
  font-weight: 600;
}

.article-body table tr:nth-child(even) {
  background: #f8fafc;
}

.article-body code {
  background: #f1f5f9;
  padding: 3px 8px;
  border-radius: 6px;
  font-size: 14px;
  color: var(--primary);
  font-family: "SF Mono", "Consolas", monospace;
}

.article-body pre {
  background: #0f172a;
  color: #e2e8f0;
  padding: 22px 26px;
  border-radius: var(--radius);
  overflow-x: auto;
  margin: 24px 0;
  font-size: 14px;
  line-height: 1.7;
}

.article-body pre code {
  background: transparent;
  color: inherit;
  padding: 0;
}

/* ===== Article Not Found ===== */
.article-not-found {
  text-align: center;
  padding: 60px 20px;
}

.article-not-found i {
  font-size: 64px;
  color: var(--border);
  margin-bottom: 24px;
}

.article-not-found h2 {
  font-size: 28px;
  color: var(--text);
  margin-bottom: 14px;
}

.article-not-found p {
  color: var(--text-light);
  font-size: 16px;
  margin-bottom: 28px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 32px;
  background: linear-gradient(135deg, #1e3a8a, #2749a8);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border-radius: 999px;
  box-shadow: 0 6px 20px rgba(30, 58, 138, 0.3);
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(30, 58, 138, 0.4);
  color: #fff;
}

/* ===== Article Tags & Pager ===== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.article-tags .tag-label {
  font-weight: 600;
  color: var(--text);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.article-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  color: var(--text-light);
  transition: var(--transition);
}

.article-tag:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(30, 58, 138, 0.05);
}

.article-pager {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  margin-top: 32px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
}

.pager-item {
  padding: 16px 20px;
  border-radius: var(--radius);
  background: var(--bg);
  border: 1px solid transparent;
  transition: var(--transition);
}

.pager-item:hover {
  border-color: var(--primary);
  background: rgba(30, 58, 138, 0.04);
  transform: translateY(-2px);
}

.pager-item.next {
  text-align: right;
}

.pager-item .pager-label {
  font-size: 12px;
  color: var(--text-lighter);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
  display: flex;
  align-items: center;
  gap: 6px;
}

.pager-item.next .pager-label {
  justify-content: flex-end;
}

.pager-item .pager-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  line-height: 1.5;
}

.pager-item:hover .pager-title {
  color: var(--primary);
}

/* ===== Sidebar ===== */
.article-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
  position: sticky;
  top: 96px;
}

.sidebar-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  border: 1px solid rgba(226, 232, 240, 0.6);
}

.sidebar-card .sidebar-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--primary-dark);
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.sidebar-card .sidebar-title::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, var(--border), transparent);
}

.sidebar-card .sidebar-title i {
  color: var(--accent);
  font-size: 16px;
}

.info-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.info-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  padding-bottom: 14px;
  border-bottom: 1px dashed var(--border);
}

.info-item:last-child {
  border-bottom: none;
  padding-bottom: 0;
}

.info-item i {
  width: 38px;
  height: 38px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(30, 58, 138, 0.08);
  color: var(--primary);
  border-radius: 10px;
  font-size: 15px;
  flex-shrink: 0;
}

.info-item .info-text {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.5;
}

.info-item .info-text strong {
  display: block;
  color: var(--text);
  font-weight: 600;
  font-size: 15px;
  margin-bottom: 2px;
}

.sidebar-category-list {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.sidebar-category-list a {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 16px;
  border-radius: 12px;
  font-size: 15px;
  color: var(--text);
  transition: var(--transition);
  border: 1px solid transparent;
}

.sidebar-category-list a:hover {
  background: var(--bg);
  color: var(--primary);
  border-color: var(--border);
  transform: translateX(4px);
}

.sidebar-category-list a i {
  color: var(--accent);
  font-size: 13px;
  opacity: 0;
  transition: var(--transition);
}

.sidebar-category-list a:hover i {
  opacity: 1;
}

.sidebar-feature-item {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px dashed var(--border);
}

.sidebar-feature-item:last-child {
  border-bottom: none;
}

.sidebar-feature-item .feat-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, rgba(245, 158, 11, 0.15), rgba(245, 158, 11, 0.05));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 17px;
  flex-shrink: 0;
}

.sidebar-feature-item .feat-text {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.4;
}

.sidebar-feature-item .feat-text strong {
  display: block;
  color: var(--text);
  font-size: 15px;
  margin-bottom: 2px;
}

/* ===== Related Section ===== */
.related-section {
  padding: 72px 0;
  background: var(--white);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.section-head {
  text-align: center;
  margin-bottom: 44px;
}

.related-section .section-head .section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--accent);
  font-weight: 600;
  background: rgba(245, 158, 11, 0.12);
  padding: 6px 18px;
  border-radius: 999px;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.related-section .section-head h2 {
  font-size: 30px;
  font-weight: 800;
  color: var(--primary-dark);
  margin-bottom: 10px;
}

.related-section .section-head p {
  color: var(--text-light);
  font-size: 15px;
}

.related-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.related-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid rgba(226, 232, 240, 0.7);
  box-shadow: var(--shadow-sm);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.related-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-6px);
  border-color: rgba(30, 58, 138, 0.3);
}

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

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

.related-card:hover .related-cover img {
  transform: scale(1.06);
}

.related-card .related-cover::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10, 22, 51, 0.35), transparent 60%);
  opacity: 0.6;
  transition: var(--transition);
}

.related-card:hover .related-cover::after {
  opacity: 1;
}

.related-card .cover-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  z-index: 2;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 12px;
  color: var(--primary);
  font-weight: 600;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.related-card .related-info {
  padding: 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.related-card .related-title {
  font-size: 17px;
  font-weight: 700;
  color: var(--text);
  line-height: 1.5;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  min-height: 51px;
  transition: var(--transition);
}

.related-card:hover .related-title {
  color: var(--primary);
}

.related-card .related-desc {
  font-size: 14px;
  color: var(--text-light);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
  flex: 1;
}

.related-card .related-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  color: var(--text-lighter);
  border-top: 1px solid var(--border);
  padding-top: 14px;
}

.related-card .related-meta i {
  color: var(--accent);
  margin-right: 4px;
}

/* ===== CTA Section ===== */
.cta-section {
  padding: 0;
  background: var(--bg-deep);
  position: relative;
  overflow: hidden;
}

.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-3.png') center / cover no-repeat;
  opacity: 0.12;
}

.cta-inner {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
  padding: 90px 28px;
}

.cta-inner .cta-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245, 158, 11, 0.15);
  border: 1px solid rgba(245, 158, 11, 0.3);
  color: #fbbf24;
  padding: 8px 20px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 2px;
  margin-bottom: 24px;
}

.cta-inner h2 {
  font-size: 36px;
  font-weight: 800;
  color: #fff;
  line-height: 1.35;
  margin-bottom: 16px;
}

.cta-inner p {
  font-size: 17px;
  color: rgba(255, 255, 255, 0.75);
  max-width: 620px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

.btn-accent {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 40px;
  background: linear-gradient(135deg, #fbbf24, #f59e0b);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  border-radius: 999px;
  box-shadow: 0 8px 30px rgba(245, 158, 11, 0.4);
  transition: var(--transition);
}

.btn-accent:hover {
  transform: translateY(-3px);
  box-shadow: 0 12px 36px rgba(245, 158, 11, 0.5);
  color: #fff;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 38px;
  border: 2px solid rgba(255, 255, 255, 0.4);
  color: rgba(255, 255, 255, 0.85);
  font-size: 16px;
  font-weight: 600;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(8px);
  transition: var(--transition);
}

.btn-ghost:hover {
  border-color: #fff;
  color: #fff;
  background: rgba(255, 255, 255, 0.14);
}

/* ===== Footer ===== */
.footer {
  background: #0a1428;
  padding: 70px 0 0;
  border-top: 4px solid rgba(245, 158, 11, 0.2);
}

.footer .container {
  max-width: 1200px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-brand .logo {
  color: #fff;
  margin-bottom: 16px;
}

.footer-brand .logo i {
  font-size: 26px;
}

.footer-brand p {
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 24px;
  max-width: 360px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.08);
  color: rgba(255, 255, 255, 0.6);
  border: 1px solid rgba(255, 255, 255, 0.1);
  transition: var(--transition);
  font-size: 16px;
}

.footer-social a:hover {
  background: var(--accent);
  color: #fff;
  border-color: var(--accent);
  transform: translateY(-3px);
}

.footer-title {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 22px;
  position: relative;
  padding-bottom: 12px;
}

.footer-title::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 32px;
  height: 3px;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), transparent);
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.footer-links li {
  margin: 0;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 0;
  color: rgba(255, 255, 255, 0.6);
  font-size: 14px;
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 6px;
}

.footer-links a i {
  font-size: 13px;
  color: var(--accent);
  width: 18px;
  text-align: center;
}

.footer-bottom {
  padding: 24px 0;
}

.footer-bottom p {
  text-align: center;
  color: rgba(255, 255, 255, 0.4);
  font-size: 13px;
  line-height: 1.6;
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.5);
}

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

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .article-layout {
    grid-template-columns: minmax(0, 1fr) 300px;
    gap: 24px;
  }

  .article-main {
    padding: 32px 32px;
  }

  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .header-inner {
    height: 64px;
    padding: 0 20px;
  }

  .menu-toggle {
    display: inline-flex;
  }

  .nav-links {
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    padding: 16px 20px 20px;
    gap: 4px;
    border-bottom: 1px solid var(--border);
    box-shadow: 0 20px 40px rgba(15, 23, 42, 0.12);
    display: none;
  }

  .nav-links.open {
    display: flex;
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    max-height: calc(100vh - 64px);
    overflow-y: auto;
  }

  .nav-links a {
    padding: 13px 18px;
    border-radius: 12px;
  }

  .nav-links a.active::after {
    left: auto;
    right: 18px;
    width: 4px;
    height: auto;
    top: 10px;
    bottom: 10px;
    border-radius: 4px;
  }

  .nav-links a.nav-cta {
    margin-left: 0;
    margin-top: 8px;
    justify-content: center;
  }

  .article-hero {
    padding: 48px 0 40px;
  }

  .article-hero h1 {
    font-size: 26px;
  }

  .article-hero-meta {
    gap: 10px;
    font-size: 13px;
  }

  .article-section {
    padding: 36px 0 50px;
  }

  .article-layout {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .article-sidebar {
    position: static;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 16px;
  }

  .sidebar-card {
    flex: 1;
    min-width: 240px;
  }

  .article-main {
    padding: 24px 20px;
    border-radius: 18px;
  }

  .article-body {
    font-size: 15.5px;
  }

  .article-pager {
    grid-template-columns: 1fr;
  }

  .pager-item.next {
    text-align: left;
  }

  .pager-item.next .pager-label {
    justify-content: flex-start;
  }

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

  .related-card .related-cover {
    height: 180px;
  }

  .cta-inner {
    padding: 70px 20px;
  }

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

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

  .footer-brand p {
    max-width: 100%;
  }

  .footer {
    padding: 50px 0 0;
  }
}

@media (max-width: 520px) {
  .container,
  .header-inner {
    padding-left: 16px;
    padding-right: 16px;
  }

  .logo {
    font-size: 18px;
  }

  .logo i {
    font-size: 22px;
  }

  .article-hero h1 {
    font-size: 22px;
  }

  .article-hero-badge {
    font-size: 12px;
    padding: 6px 14px;
  }

  .article-main {
    padding: 20px 16px;
  }

  .article-body blockquote {
    padding: 16px 18px;
  }

  .article-body pre {
    padding: 16px;
  }

  .article-body table {
    font-size: 13px;
  }

  .article-body table th,
  .article-body table td {
    padding: 10px 12px;
  }

  .cta-inner p {
    font-size: 15px;
  }

  .btn-accent,
  .btn-ghost {
    width: 100%;
    justify-content: center;
    padding: 14px 24px;
  }

  .footer-links a {
    font-size: 14px;
  }

  .footer-bottom p {
    font-size: 12px;
  }
}

@media (min-width: 769px) {
  .nav-links {
    display: flex !important;
  }
}

/* roulang page: category1 */
:root {
  --primary: #5b5bd6;
  --primary-dark: #4343b5;
  --primary-soft: #f0f1ff;
  --accent: #f5a623;
  --accent-deep: #d98e14;
  --dark: #0a0e1f;
  --dark-light: #131a2e;
  --bg: #f6f7fb;
  --card-bg: #ffffff;
  --text: #17213a;
  --muted: #667085;
  --border: #e5e7ef;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 12px 40px rgba(10, 14, 31, 0.08);
  --shadow-lg: 0 24px 64px rgba(10, 14, 31, 0.14);
  --font: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body { margin: 0; font-family: var(--font); line-height: 1.7; color: var(--text); background: var(--bg); -webkit-font-smoothing: antialiased; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
h1, h2, h3, h4 { margin: 0; line-height: 1.3; font-weight: 700; }
p { margin: 0; }
ul, ol { margin: 0; padding: 0; }

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

/* 按钮 */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 13px 28px; border-radius: 999px; font-size: 15px; font-weight: 700;
  transition: all .28s ease; border: 2px solid transparent; white-space: nowrap;
}
.btn i { font-size: 15px; }
.btn-primary { background: var(--primary); color: #fff; box-shadow: 0 8px 24px rgba(91,91,214,0.32); }
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 12px 30px rgba(91,91,214,0.42); }
.btn-light { background: #fff; color: var(--primary); box-shadow: 0 8px 24px rgba(10,14,31,0.16); }
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 14px 34px rgba(10,14,31,0.2); }
.btn-ghost { background: rgba(255,255,255,0.12); color: #fff; border-color: rgba(255,255,255,0.55); backdrop-filter: blur(6px); }
.btn-ghost:hover { background: rgba(255,255,255,0.2); transform: translateY(-2px); }
.btn-outline-light { background: transparent; color: #fff; border-color: rgba(255,255,255,0.6); }
.btn-outline-light:hover { background: rgba(255,255,255,0.12); transform: translateY(-2px); }
.btn-lg { padding: 16px 38px; font-size: 16px; }

/* Header 导航 */
.header {
  position: sticky; top: 0; z-index: 1000;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1200px; margin: 0 auto; padding: 0 24px;
  height: 74px; display: flex; align-items: center; justify-content: space-between; gap: 20px;
}
.logo {
  display: inline-flex; align-items: center; gap: 12px;
  font-size: 20px; font-weight: 800; color: var(--text);
  flex-shrink: 0;
}
.logo i {
  width: 40px; height: 40px; display: inline-flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff; border-radius: 12px; font-size: 19px; box-shadow: 0 6px 16px rgba(91,91,214,0.34);
}
.nav-links {
  display: flex; align-items: center; gap: 6px; list-style: none;
}
.nav-links a {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 16px; border-radius: 999px;
  font-size: 14.5px; font-weight: 600; color: var(--muted);
  transition: all .25s ease;
}
.nav-links a i { font-size: 14px; }
.nav-links a:hover { color: var(--primary); background: var(--primary-soft); }
.nav-links a.active { color: var(--primary); background: var(--primary-soft); }
.nav-links .nav-cta {
  background: var(--primary); color: #fff; padding: 10px 22px; margin-left: 8px;
  box-shadow: 0 6px 18px rgba(91,91,214,0.3);
}
.nav-links .nav-cta:hover { background: var(--primary-dark); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(91,91,214,0.4); color: #fff; }
.menu-toggle { display: none; width: 42px; height: 42px; border-radius: 12px; background: var(--primary-soft); color: var(--primary); font-size: 18px; align-items: center; justify-content: center; }

/* 页面 Banner */
.page-banner {
  position: relative; padding: 88px 0 110px;
  background: linear-gradient(rgba(10,14,31,0.78), rgba(10,14,31,0.86)), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  color: #fff; text-align: center;
}
.breadcrumb {
  display: flex; align-items: center; justify-content: center; gap: 10px;
  font-size: 13px; color: rgba(255,255,255,0.65); margin-bottom: 26px;
}
.breadcrumb a { color: rgba(255,255,255,0.8); transition: color .2s; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb i { font-size: 11px; color: rgba(255,255,255,0.4); }
.banner-tag {
  display: inline-flex; align-items: center; gap: 8px;
  background: rgba(255,255,255,0.14); border: 1px solid rgba(255,255,255,0.24);
  padding: 8px 20px; border-radius: 999px; font-size: 13.5px; font-weight: 600;
  backdrop-filter: blur(8px); margin-bottom: 20px; color: #fff;
}
.banner-tag i { color: var(--accent); }
.page-banner h1 { font-size: 46px; font-weight: 800; letter-spacing: -0.5px; margin-bottom: 18px; }
.page-banner .subtitle {
  font-size: 17px; line-height: 1.8; color: rgba(255,255,255,0.82);
  max-width: 700px; margin: 0 auto 36px;
}
.banner-actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; }

/* 快速导航 Tabs */
.guide-tabs { padding: 40px 0 0; margin-top: -28px; position: relative; z-index: 6; }
.tabs-wrap { display: flex; flex-wrap: wrap; gap: 12px; justify-content: center; }
.tab-pill {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 13px 24px; border-radius: 999px;
  background: #fff; border: 1px solid var(--border);
  box-shadow: var(--shadow); font-size: 14.5px; font-weight: 600; color: var(--text);
  transition: all .25s ease;
}
.tab-pill i { color: var(--primary); font-size: 15px; }
.tab-pill:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); box-shadow: 0 14px 36px rgba(10,14,31,0.12); }

/* 通用 Section */
.section { padding: 76px 0; }
.section-head { text-align: center; max-width: 660px; margin: 0 auto 52px; }
.section-head .eyebrow {
  display: inline-block; font-size: 13px; font-weight: 800; letter-spacing: 2.5px;
  color: var(--primary); text-transform: uppercase; margin-bottom: 10px;
}
.section-head h2 { font-size: 34px; font-weight: 800; margin-bottom: 14px; letter-spacing: -0.4px; }
.section-head p { font-size: 16px; color: var(--muted); line-height: 1.75; }
.section-head.white h2 { color: #fff; }
.section-head.white p { color: rgba(255,255,255,0.7); }
.section-head.white .eyebrow { color: var(--accent); }

/* 六步教程卡片 */
.guide-grid { margin: 0 -12px; }
.guide-grid > .cell { padding: 12px; }
.guide-card {
  background: var(--card-bg); border-radius: var(--radius);
  border: 1px solid var(--border); box-shadow: var(--shadow);
  height: 100%; display: flex; flex-direction: column; overflow: hidden;
  transition: transform .35s ease, box-shadow .35s ease;
}
.guide-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); }
.card-media { position: relative; height: 208px; overflow: hidden; }
.card-media img { width: 100%; height: 100%; object-fit: cover; transition: transform .55s ease; }
.guide-card:hover .card-media img { transform: scale(1.07); }
.step-badge {
  position: absolute; top: 14px; left: 14px;
  background: rgba(10,14,31,0.78); color: #fff;
  padding: 7px 16px; border-radius: 999px;
  font-size: 12.5px; font-weight: 800; letter-spacing: 0.5px;
  backdrop-filter: blur(6px); border: 1px solid rgba(255,255,255,0.16);
}
.card-body { padding: 26px 24px 24px; flex: 1; display: flex; flex-direction: column; }
.card-body h3 { font-size: 18.5px; font-weight: 700; margin-bottom: 10px; }
.card-body p { font-size: 14px; color: var(--muted); line-height: 1.75; flex: 1; }
.card-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; padding-top: 16px; border-top: 1px dashed var(--border); }
.card-tags span {
  font-size: 12px; font-weight: 600; background: var(--bg);
  border: 1px solid var(--border); color: var(--muted);
  padding: 5px 14px; border-radius: 999px;
}

/* 流程步骤 */
.process-section {
  background: linear-gradient(rgba(10,14,31,0.93), rgba(10,14,31,0.93)), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
  color: #fff;
}
.process-grid { margin: 0 -12px; }
.process-grid > .cell { padding: 12px; }
.step-item {
  text-align: center; padding: 40px 22px 34px; border-radius: var(--radius);
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1);
  backdrop-filter: blur(8px); height: 100%;
  transition: background .3s ease, transform .3s ease, border-color .3s ease;
}
.step-item:hover { background: rgba(255,255,255,0.09); border-color: rgba(255,255,255,0.2); transform: translateY(-4px); }
.step-icon {
  width: 66px; height: 66px; margin: 0 auto 20px;
  border-radius: 22px;
  background: linear-gradient(135deg, var(--primary), #7b6cf0);
  display: flex; align-items: center; justify-content: center;
  font-size: 27px; color: #fff;
  box-shadow: 0 12px 30px rgba(91,91,214,0.4);
}
.step-num { font-size: 13px; font-weight: 800; letter-spacing: 2px; color: var(--accent); margin-bottom: 6px; }
.step-item h3 { font-size: 19px; margin-bottom: 10px; }
.step-item p { font-size: 13.5px; color: rgba(255,255,255,0.62); line-height: 1.7; max-width: 220px; margin: 0 auto; }

/* FAQ */
.faq-list { list-style: none; max-width: 840px; margin: 0 auto; }
.faq-list .accordion-item {
  background: #fff; border: 1px solid var(--border);
  border-radius: 14px; margin-bottom: 14px; overflow: hidden;
  box-shadow: 0 4px 14px rgba(10,14,31,0.04);
  transition: box-shadow .3s ease;
}
.faq-list .accordion-item:hover { box-shadow: 0 10px 26px rgba(10,14,31,0.08); }
.faq-list .accordion-title {
  display: flex; align-items: center; justify-content: space-between; gap: 16px;
  padding: 20px 26px; font-size: 16px; font-weight: 600; color: var(--text);
  background: #fff; border-bottom: none; position: relative;
}
.faq-list .accordion-title .fa-plus { color: var(--primary); font-size: 14px; transition: transform .3s ease; flex-shrink: 0; }
.faq-list .accordion-item.is-active .accordion-title .fa-plus { transform: rotate(45deg); }
.faq-list .accordion-content {
  padding: 0 26px 22px; font-size: 14.5px; color: var(--muted);
  line-height: 1.85; background: #fff; border-bottom: none;
}
.faq-list .accordion-content p { margin-bottom: 10px; }
.faq-list .accordion-content p:last-child { margin-bottom: 0; }

/* CTA */
.cta-section { padding: 76px 0 90px; }
.cta-box {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: 30px; padding: 68px 40px; text-align: center; color: #fff;
  position: relative; overflow: hidden;
  box-shadow: 0 30px 70px rgba(91,91,214,0.35);
}
.cta-box::before {
  content: ''; position: absolute; right: -70px; top: -70px; width: 260px; height: 260px;
  background: rgba(255,255,255,0.08); border-radius: 50%;
}
.cta-box::after {
  content: ''; position: absolute; left: -50px; bottom: -80px; width: 200px; height: 200px;
  background: rgba(255,255,255,0.06); border-radius: 50%;
}
.cta-box h2 { font-size: 34px; font-weight: 800; position: relative; z-index: 1; margin-bottom: 14px; }
.cta-box p { font-size: 16px; opacity: 0.85; position: relative; z-index: 1; margin-bottom: 34px; }
.cta-actions { display: flex; flex-wrap: wrap; gap: 14px; justify-content: center; position: relative; z-index: 1; }

/* Footer */
.footer { background: var(--dark); color: #8b96ad; padding: 72px 0 32px; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 56px; }
.footer-brand .logo { color: #fff; margin-bottom: 18px; }
.footer-brand .logo i { background: linear-gradient(135deg, var(--primary), var(--accent)); }
.footer-brand p { font-size: 14px; line-height: 1.85; color: #8b96ad; max-width: 360px; margin-bottom: 24px; }
.footer-social { display: flex; gap: 10px; }
.footer-social a {
  width: 40px; height: 40px; border-radius: 12px;
  display: inline-flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.08); color: #aab4c6;
  font-size: 16px; transition: all .28s ease;
}
.footer-social a:hover { background: var(--primary); color: #fff; transform: translateY(-3px); }
.footer-title { color: #fff; font-weight: 700; font-size: 16px; margin-bottom: 20px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 4px; }
.footer-links a {
  font-size: 14px; color: #8b96ad; display: inline-block; padding: 6px 0;
  transition: color .2s ease, transform .2s ease;
}
.footer-links a:hover { color: #fff; transform: translateX(4px); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-top: 56px; padding-top: 26px;
  text-align: center; font-size: 13px; color: #6c788f;
}
.footer-bottom a { color: #8b96ad; transition: color .2s; }
.footer-bottom a:hover { color: #fff; }

/* 响应式 */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; }
  .footer-brand { grid-column: 1 / -1; }
}
@media (max-width: 900px) {
  .header-inner { height: 66px; }
  .menu-toggle { display: inline-flex; }
  .nav-links {
    position: fixed; top: 66px; left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: stretch;
    padding: 16px 20px 24px; gap: 6px;
    box-shadow: 0 26px 50px rgba(10,14,31,0.16);
    display: none; border-bottom: 1px solid var(--border);
  }
  .nav-links.open { display: flex; }
  .nav-links a { justify-content: center; padding: 13px 16px; font-size: 15px; }
  .nav-links .nav-cta { margin-left: 0; }
  .page-banner { padding: 72px 0 100px; }
  .page-banner h1 { font-size: 36px; }
  .page-banner .subtitle { font-size: 15.5px; }
  .section { padding: 60px 0; }
  .cta-box { padding: 50px 28px; border-radius: 24px; }
  .cta-box h2 { font-size: 28px; }
}
@media (max-width: 640px) {
  .container { padding: 0 18px; }
  .page-banner h1 { font-size: 29px; }
  .page-banner .subtitle { font-size: 14.5px; }
  .banner-actions .btn { width: 100%; }
  .section-head h2 { font-size: 27px; }
  .tabs-wrap { gap: 8px; }
  .tab-pill { padding: 11px 18px; font-size: 13.5px; }
  .step-item { padding: 30px 16px 26px; }
  .cta-section { padding: 52px 0 64px; }
  .cta-box h2 { font-size: 24px; }
  .cta-box p { font-size: 14.5px; }
  .cta-actions .btn { width: 100%; }
  .footer { padding: 56px 0 28px; }
  .footer-grid { grid-template-columns: 1fr; gap: 36px; }
  .footer-brand p { max-width: 100%; }
  .footer-bottom { margin-top: 40px; font-size: 12px; line-height: 1.8; }
}

/* roulang page: category3 */
/* ========== 设计变量 ========== */
:root {
  --primary: #6c4ce6;
  --primary-dark: #5438c7;
  --primary-light: #eef0ff;
  --accent: #ff7a3d;
  --accent-dark: #e35e24;
  --accent-light: #fff3ec;
  --success: #18b87a;
  --warning: #f5a623;
  --info: #22b8e6;
  --dark: #1e2150;
  --dark-2: #282c6b;
  --text: #2f3358;
  --text-weak: #7a7ea8;
  --bg: #f7f8fd;
  --bg-white: #ffffff;
  --border: #e6e8f5;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 10px rgba(30, 33, 80, 0.06);
  --shadow-md: 0 8px 30px rgba(30, 33, 80, 0.10);
  --shadow-lg: 0 18px 50px rgba(30, 33, 80, 0.14);
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  --font-base: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}

/* ========== Reset / Base ========== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-base);
  color: var(--text);
  background: var(--bg);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

/* ========== Header / Nav ========== */
.header {
  position: sticky;
  top: 0;
  z-index: 999;
  background: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}

.header.scrolled {
  box-shadow: var(--shadow-md);
}

.header-inner {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
  gap: 24px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: 0.3px;
  white-space: nowrap;
}

.logo i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 0.95rem;
  flex-shrink: 0;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  margin: 0;
}

.nav-links > li {
  margin: 0;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 16px;
  border-radius: 10px;
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--text);
  transition: var(--transition);
  line-height: 1.4;
}

.nav-links a:hover {
  color: var(--primary);
  background: var(--primary-light);
}

.nav-links a.active {
  color: var(--primary);
  background: var(--primary-light);
  box-shadow: inset 0 0 0 1px rgba(108, 76, 230, 0.15);
}

.nav-links a.nav-cta {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  padding: 9px 20px;
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(108, 76, 230, 0.3);
}

.nav-links a.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(108, 76, 230, 0.4);
  color: #fff;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.4rem;
  color: var(--text);
  cursor: pointer;
  padding: 8px;
  border-radius: 8px;
  transition: var(--transition);
}

.menu-toggle:hover {
  background: var(--primary-light);
}

/* ========== Page Hero / Banner ========== */
.page-hero {
  position: relative;
  padding: 88px 0 64px;
  background: linear-gradient(135deg, #1e2150 0%, #3d348b 50%, #6c4ce6 100%);
  color: #fff;
  overflow: hidden;
  text-align: center;
}

.page-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-2.png');
  background-size: cover;
  background-position: center;
  opacity: 0.2;
}

.page-hero::after {
  content: "";
  position: absolute;
  top: -80px;
  right: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  pointer-events: none;
}

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

.page-hero h1 {
  font-size: 2.6rem;
  font-weight: 800;
  margin-bottom: 16px;
  letter-spacing: 1px;
}

.page-hero h1 span {
  background: linear-gradient(135deg, #ffd76e, #ff9a5a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.page-hero .hero-sub {
  max-width: 640px;
  margin: 0 auto 28px;
  font-size: 1.05rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, 0.85);
}

.page-hero .hero-badges {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 18px;
  border-radius: 30px;
  background: rgba(255, 255, 255, 0.14);
  border: 1px solid rgba(255, 255, 255, 0.22);
  font-size: 0.85rem;
  font-weight: 500;
  color: #fff;
}

/* ========== Section Header ========== */
.section {
  padding: 84px 0;
}

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

.section-dark {
  background: var(--dark);
  color: #fff;
}

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

.section-head .section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 16px;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 30px;
  font-size: 0.82rem;
  font-weight: 700;
  margin-bottom: 14px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.section-head h2 {
  font-size: 2rem;
  font-weight: 800;
  color: var(--dark);
  margin-bottom: 12px;
  line-height: 1.35;
}

.section-head p {
  max-width: 620px;
  margin: 0 auto;
  color: var(--text-weak);
  font-size: 0.98rem;
  line-height: 1.7;
}

.section-dark .section-head h2 {
  color: #fff;
}

.section-dark .section-head p {
  color: rgba(255, 255, 255, 0.7);
}

.section-dark .section-tag {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

/* ========== News / Activity Cards ========== */
.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.news-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

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

.news-card .card-media {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
}

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

.news-card:hover .card-media img {
  transform: scale(1.06);
}

.news-card .card-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  padding: 4px 14px;
  border-radius: 30px;
  font-size: 0.78rem;
  font-weight: 700;
  color: #fff;
  z-index: 2;
}

.tag-hot {
  background: linear-gradient(135deg, #ff5f6d, #ff8f5a);
}

.tag-new {
  background: linear-gradient(135deg, #18b87a, #43c99f);
}

.tag-limit {
  background: linear-gradient(135deg, #f5a623, #f5c842);
}

.tag-race {
  background: linear-gradient(135deg, var(--primary), #9b7bff);
}

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

.news-card .card-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 0.82rem;
  color: var(--text-weak);
  margin-bottom: 12px;
}

.news-card .card-meta i {
  color: var(--primary);
  margin-right: 4px;
}

.news-card .card-title {
  font-size: 1.08rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
  line-height: 1.5;
}

.news-card .card-desc {
  font-size: 0.9rem;
  color: var(--text-weak);
  line-height: 1.7;
  margin-bottom: 18px;
  flex: 1;
}

.news-card .card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
}

.news-card .card-link:hover {
  gap: 10px;
}

/* ========== Category Tabs ========== */
.tab-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
}

.tab-btn {
  padding: 9px 24px;
  border-radius: 30px;
  border: 1.5px solid var(--border);
  background: var(--bg-white);
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--text);
  cursor: pointer;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.tab-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}

.tab-btn.active {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-color: var(--primary);
  color: #fff;
  box-shadow: 0 4px 14px rgba(108, 76, 230, 0.3);
}

/* ========== Timeline / Steps ========== */
.steps-section {
  background: linear-gradient(180deg, var(--bg-white), var(--primary-light));
}

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  position: relative;
}

.step-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 34px 22px;
  text-align: center;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  position: relative;
}

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

.step-number {
  width: 48px;
  height: 48px;
  margin: 0 auto 18px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  font-weight: 800;
  color: #fff;
}

.step-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
}

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

/* ========== Stats Band ========== */
.stats-band {
  padding: 70px 0;
  background: linear-gradient(135deg, #1e2150, #3d348b);
  position: relative;
  overflow: hidden;
}

.stats-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  opacity: 0.1;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 30px;
  position: relative;
  z-index: 2;
}

.stat-item {
  text-align: center;
  padding: 20px;
}

.stat-item .stat-num {
  font-size: 2.6rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 6px;
  background: linear-gradient(135deg, #ffd76e, #ff9a5a);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat-item .stat-label {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.8);
  font-weight: 500;
}

/* ========== Featured Events ========== */
.feature-row {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 50px;
  align-items: center;
}

.feature-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
}

.feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.feature-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 40%, rgba(30, 33, 80, 0.6));
  pointer-events: none;
}

.feature-media .media-caption {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 24px;
  color: #fff;
  z-index: 2;
}

.feature-media .media-caption h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
}

.feature-media .media-caption span {
  font-size: 0.85rem;
  opacity: 0.85;
}

.feature-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.feature-item {
  display: flex;
  gap: 16px;
  padding: 18px 20px;
  background: var(--bg-white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.feature-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
  transform: translateX(4px);
}

.feature-item .feature-icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}

.feature-item h4 {
  font-size: 0.98rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 4px;
}

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

/* ========== FAQ ========== */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg-white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  margin-bottom: 14px;
  transition: var(--transition);
}

.faq-item:hover {
  border-color: var(--primary);
  box-shadow: var(--shadow-sm);
}

.faq-item h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 10px;
  display: flex;
  align-items: center;
  gap: 10px;
}

.faq-item h3 i {
  color: var(--primary);
}

.faq-item p {
  font-size: 0.9rem;
  color: var(--text-weak);
  line-height: 1.75;
  padding-left: 26px;
}

/* ========== CTA ========== */
.cta-section {
  padding: 88px 0;
  background: linear-gradient(135deg, #2a2068, #6c4ce6);
  position: relative;
  overflow: hidden;
  text-align: center;
}

.cta-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
  opacity: 0.14;
}

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

.cta-section h2 {
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}

.cta-section p {
  max-width: 560px;
  margin: 0 auto 32px;
  color: rgba(255, 255, 255, 0.82);
  font-size: 1rem;
  line-height: 1.8;
}

.btn-cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 38px;
  background: linear-gradient(135deg, #ffd76e, #ff9a5a);
  color: #2a2068;
  font-weight: 700;
  font-size: 1.02rem;
  border-radius: 40px;
  border: none;
  cursor: pointer;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  transition: var(--transition);
}

.btn-cta:hover {
  transform: translateY(-3px) scale(1.02);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
  color: #2a2068;
}

.btn-outline-light {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 32px;
  border: 1.5px solid rgba(255, 255, 255, 0.7);
  color: #fff;
  font-weight: 600;
  border-radius: 40px;
  transition: var(--transition);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
  border-color: #fff;
}

.cta-btns {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}

/* ========== Footer ========== */
.footer {
  background: var(--dark);
  padding: 72px 0 30px;
  color: rgba(255, 255, 255, 0.75);
}

.footer .logo {
  color: #fff;
}

.footer .logo i {
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 50px;
  margin-bottom: 50px;
}

.footer-brand p {
  font-size: 0.9rem;
  line-height: 1.8;
  margin: 18px 0 22px;
  color: rgba(255, 255, 255, 0.6);
  max-width: 340px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.footer-social a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.1);
  color: rgba(255, 255, 255, 0.7);
  font-size: 0.95rem;
  transition: var(--transition);
}

.footer-social a:hover {
  background: var(--primary);
  color: #fff;
  transform: translateY(-3px);
}

.footer-title {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: 0.5px;
}

.footer-links {
  list-style: none;
  margin: 0;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  display: inline-flex;
  align-items: center;
  color: rgba(255, 255, 255, 0.65);
  font-size: 0.9rem;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 26px;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.82rem;
  color: rgba(255, 255, 255, 0.45);
}

.footer-bottom a {
  color: rgba(255, 255, 255, 0.55);
}

.footer-bottom a:hover {
  color: #fff;
}

/* ========== Responsive ========== */
@media screen and (max-width: 1024px) {
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .feature-row {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }

  .page-hero h1 {
    font-size: 2.1rem;
  }
}

@media screen and (max-width: 768px) {
  .container {
    padding: 0 18px;
  }

  .header-inner {
    padding: 0 18px;
  }

  .menu-toggle {
    display: block;
  }

  .nav-links {
    position: absolute;
    top: 70px;
    left: 0;
    right: 0;
    background: var(--bg-white);
    flex-direction: column;
    align-items: stretch;
    padding: 14px 18px;
    border-bottom: 1px solid var(--border);
    box-shadow: var(--shadow-md);
    display: none;
    z-index: 998;
  }

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

  .nav-links a {
    width: 100%;
    justify-content: flex-start;
    padding: 12px 16px;
    border-radius: 10px;
  }

  .nav-links a.nav-cta {
    margin-top: 6px;
    justify-content: center;
  }

  .section {
    padding: 60px 0;
  }

  .section-head h2 {
    font-size: 1.6rem;
  }

  .news-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .step-card {
    padding: 26px 18px;
  }

  .feature-row {
    gap: 32px;
  }

  .stats-band {
    padding: 50px 0;
  }

  .stat-item .stat-num {
    font-size: 2rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }

  .page-hero {
    padding: 60px 0 46px;
  }

  .page-hero h1 {
    font-size: 1.7rem;
  }

  .page-hero .hero-sub {
    font-size: 0.95rem;
  }

  .cta-section h2 {
    font-size: 1.7rem;
  }

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

@media screen and (max-width: 520px) {
  .steps-grid {
    grid-template-columns: 1fr;
  }

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

  .tab-bar {
    gap: 8px;
  }

  .tab-btn {
    padding: 7px 16px;
    font-size: 0.82rem;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }

  .hero-badge {
    padding: 6px 12px;
    font-size: 0.78rem;
  }

  .cta-btns .btn-cta,
  .cta-btns .btn-outline-light {
    width: 100%;
    justify-content: center;
  }
}

/* ========== Focus Accessibility ========== */
a:focus,
button:focus,
input:focus {
  outline: 3px solid rgba(108, 76, 230, 0.35);
  outline-offset: 2px;
}

/* roulang page: category2 */
:root {
  --primary: #6d28d9;
  --primary-light: #8b5cf6;
  --primary-lighter: #ddd6fe;
  --primary-dark: #5b21b6;
  --secondary: #f59e0b;
  --secondary-light: #fbbf24;
  --accent: #0ea5e9;
  --bg-light: #f8fafc;
  --bg-dark: #0f172a;
  --bg-dark-2: #1e293b;
  --bg-gray: #f1f5f9;
  --text-main: #1e293b;
  --text-body: #475569;
  --text-weak: #94a3b8;
  --border: #e2e8f0;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, .06);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, .08);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, .12);
  --space-section: 96px;
  --font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body { font-family: var(--font-family); color: var(--text-body); background: #fff; line-height: 1.75; font-size: 16px; -webkit-font-smoothing: antialiased; }
img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; transition: all .25s ease; }
ul, ol { list-style: none; }
button, input, select, textarea { font-family: inherit; font-size: inherit; }
textarea:focus, input:focus, button:focus, a:focus { outline: 2px solid var(--primary-light); outline-offset: 2px; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* Header */
.header { position: sticky; top: 0; z-index: 100; background: rgba(255, 255, 255, .92); backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px); border-bottom: 1px solid rgba(226, 232, 240, .7); box-shadow: 0 1px 12px rgba(15, 23, 42, .04); }
.header-inner { max-width: 1200px; margin: 0 auto; padding: 0 24px; display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo { display: flex; align-items: center; gap: 10px; font-size: 22px; font-weight: 800; color: var(--text-main); letter-spacing: .5px; }
.logo i { color: var(--primary); font-size: 24px; }
.logo:hover { color: var(--primary); }
.logo span { background: linear-gradient(135deg, var(--primary), var(--accent)); -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent; }
.nav-links { display: flex; align-items: center; gap: 6px; }
.nav-links li a { display: flex; align-items: center; gap: 6px; padding: 10px 16px; border-radius: 999px; font-weight: 600; font-size: 15px; color: var(--text-body); transition: all .25s ease; }
.nav-links li a i { font-size: 14px; color: var(--text-weak); transition: color .25s; }
.nav-links li a:hover { background: var(--bg-gray); color: var(--primary); }
.nav-links li a:hover i { color: var(--primary); }
.nav-links li a.active { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(109, 40, 217, .28); }
.nav-links li a.active i { color: #fff; }
.nav-links li a.nav-cta { background: linear-gradient(135deg, var(--secondary), var(--secondary-light)); color: #fff; box-shadow: 0 4px 14px rgba(245, 158, 11, .32); }
.nav-links li a.nav-cta:hover { transform: translateY(-2px); box-shadow: 0 6px 20px rgba(245, 158, 11, .4); }
.nav-links li a.nav-cta i { color: #fff; }
.menu-toggle { display: none; background: none; border: none; font-size: 24px; color: var(--text-main); cursor: pointer; padding: 8px; border-radius: 8px; }

/* Page Banner */
.page-banner { position: relative; background: linear-gradient(135deg, var(--bg-dark) 0%, #2d1b69 50%, var(--primary-dark) 100%); padding: 72px 0 64px; overflow: hidden; }
.page-banner::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-2.png') no-repeat center/cover; opacity: .18; }
.page-banner::after { content: ''; position: absolute; top: -40%; right: -10%; width: 500px; height: 500px; border-radius: 50%; background: radial-gradient(circle, rgba(139, 92, 246, .35), transparent 65%); }
.page-banner .container { position: relative; z-index: 2; }
.banner-badge { display: inline-flex; align-items: center; gap: 8px; background: rgba(255, 255, 255, .12); border: 1px solid rgba(255, 255, 255, .2); color: #fff; padding: 6px 16px; border-radius: 999px; font-size: 13px; font-weight: 600; letter-spacing: 1px; margin-bottom: 18px; backdrop-filter: blur(8px); }
.page-banner h1 { font-size: 42px; font-weight: 900; color: #fff; line-height: 1.25; margin-bottom: 14px; letter-spacing: 1px; }
.page-banner p { font-size: 17px; color: rgba(255, 255, 255, .85); max-width: 640px; line-height: 1.8; }
.banner-crumb { display: flex; align-items: center; gap: 8px; margin-top: 20px; color: rgba(255, 255, 255, .6); font-size: 14px; }
.banner-crumb a:hover { color: #fff; }

/* Section base */
.section { padding: var(--space-section) 0; }
.section-header { text-align: center; max-width: 680px; margin: 0 auto 48px; }
.section-header .section-tag { display: inline-block; background: var(--primary-lighter); color: var(--primary-dark); font-weight: 700; font-size: 14px; padding: 6px 18px; border-radius: 999px; margin-bottom: 14px; }
.section-header h2 { font-size: 34px; font-weight: 900; color: var(--text-main); line-height: 1.3; letter-spacing: .5px; }
.section-header p { font-size: 16px; color: var(--text-body); margin-top: 12px; }

/* Featured strats */
.featured-strats { background: var(--bg-light); padding: 80px 0; }
.featured-card { background: #fff; border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); border: 1px solid var(--border); transition: transform .3s ease, box-shadow .3s ease; height: 100%; display: flex; flex-direction: column; }
.featured-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.featured-card .feat-img { position: relative; overflow: hidden; aspect-ratio: 16/9; }
.featured-card .feat-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .45s ease; }
.featured-card:hover .feat-img img { transform: scale(1.06); }
.feat-tag { position: absolute; top: 14px; left: 14px; background: rgba(15, 23, 42, .75); color: #fff; backdrop-filter: blur(8px); padding: 4px 14px; border-radius: 999px; font-size: 13px; font-weight: 600; }
.feat-tag.hot { background: linear-gradient(135deg, #f43f5e, #fb7185); }
.feat-meta { padding: 20px 22px 18px; display: flex; flex-direction: column; flex: 1; }
.feat-meta h3 { font-size: 20px; font-weight: 800; color: var(--text-main); line-height: 1.4; margin-bottom: 10px; }
.feat-meta h3 a:hover { color: var(--primary); }
.feat-meta .desc { font-size: 14px; color: var(--text-body); line-height: 1.7; margin-bottom: 16px; flex: 1; }
.feat-stats { display: flex; gap: 16px; border-top: 1px solid var(--border); padding-top: 14px; font-size: 13px; color: var(--text-weak); }
.feat-stats i { margin-right: 4px; color: var(--primary-light); }

/* Category filter tabs */
.strat-filter { background: #fff; }
.filter-tabs { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px; margin-bottom: 44px; }
.filter-tab { padding: 10px 22px; border-radius: 999px; background: var(--bg-gray); color: var(--text-body); font-weight: 700; font-size: 14px; border: 1px solid transparent; cursor: pointer; transition: all .25s ease; }
.filter-tab:hover { background: var(--primary-lighter); color: var(--primary-dark); }
.filter-tab.active { background: var(--primary); color: #fff; box-shadow: 0 4px 14px rgba(109, 40, 217, .25); }
.strat-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; transition: all .3s ease; box-shadow: var(--shadow-sm); height: 100%; display: flex; flex-direction: column; }
.strat-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.strat-card .card-img { position: relative; aspect-ratio: 4/3; overflow: hidden; }
.strat-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.strat-card:hover .card-img img { transform: scale(1.05); }
.card-badge { position: absolute; top: 12px; left: 12px; background: rgba(15, 23, 42, .75); color: #fff; padding: 4px 12px; border-radius: 999px; font-size: 12px; font-weight: 600; backdrop-filter: blur(6px); }
.card-badge.type-mobile { background: rgba(14, 165, 233, .85); }
.card-badge.type-pc { background: rgba(245, 158, 11, .85); }
.card-body { padding: 18px 20px 20px; display: flex; flex-direction: column; flex: 1; }
.card-body .card-cat { font-size: 13px; font-weight: 700; color: var(--primary); margin-bottom: 8px; }
.card-body h3 { font-size: 17px; font-weight: 800; color: var(--text-main); line-height: 1.45; margin-bottom: 8px; }
.card-body h3 a:hover { color: var(--primary); }
.card-body .card-excerpt { font-size: 14px; color: var(--text-body); line-height: 1.7; margin-bottom: 14px; flex: 1; display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical; overflow: hidden; }
.card-foot { display: flex; justify-content: space-between; align-items: center; border-top: 1px solid var(--bg-gray); padding-top: 14px; font-size: 13px; color: var(--text-weak); }
.card-foot .read-more { color: var(--primary); font-weight: 700; transition: gap .25s; display: inline-flex; gap: 4px; align-items: center; }
.card-foot .read-more:hover { gap: 8px; color: var(--primary-dark); }

/* Walkthrough / guide steps */
.guide-band { background: var(--bg-dark); padding: 88px 0; color: #fff; position: relative; overflow: hidden; }
.guide-band::before { content: ''; position: absolute; inset: 0; background: linear-gradient(120deg, transparent 0%, rgba(139, 92, 246, .12) 100%); }
.guide-band .container { position: relative; z-index: 2; }
.guide-band .section-header h2 { color: #fff; }
.guide-band .section-header p { color: rgba(255, 255, 255, .7); }
.step-item { text-align: center; padding: 24px 18px; }
.step-icon { width: 68px; height: 68px; margin: 0 auto 18px; border-radius: 20px; display: flex; align-items: center; justify-content: center; font-size: 26px; color: #fff; background: linear-gradient(135deg, var(--primary), var(--accent)); box-shadow: 0 10px 30px rgba(139, 92, 246, .3); }
.step-item h3 { font-size: 18px; font-weight: 800; margin-bottom: 10px; color: #fff; }
.step-item p { font-size: 14px; color: rgba(255, 255, 255, .7); line-height: 1.7; }
.step-arrow { display: flex; align-items: center; justify-content: center; font-size: 22px; color: var(--primary-light); }

/* Ranking panel */
.rank-panel { background: var(--bg-light); padding: 88px 0; }
.rank-tabs { display: flex; justify-content: center; gap: 10px; margin-bottom: 40px; flex-wrap: wrap; }
.rank-tab { padding: 8px 20px; border-radius: 999px; background: #fff; border: 1px solid var(--border); font-weight: 700; font-size: 14px; color: var(--text-body); cursor: pointer; transition: all .25s; }
.rank-tab:hover { border-color: var(--primary); color: var(--primary); }
.rank-tab.active { background: var(--primary); color: #fff; border-color: var(--primary); }
.rank-card { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md); padding: 20px 22px; margin-bottom: 12px; display: flex; align-items: center; gap: 18px; transition: box-shadow .25s; }
.rank-card:hover { box-shadow: var(--shadow-md); }
.rank-num { width: 44px; height: 44px; min-width: 44px; border-radius: 12px; display: flex; align-items: center; justify-content: center; background: var(--bg-gray); color: var(--text-weak); font-weight: 900; font-size: 18px; }
.rank-card:nth-child(1) .rank-num { background: linear-gradient(135deg, #fbbf24, #f59e0b); color: #fff; }
.rank-card:nth-child(2) .rank-num { background: linear-gradient(135deg, #cbd5e1, #94a3b8); color: #fff; }
.rank-card:nth-child(3) .rank-num { background: linear-gradient(135deg, #f59e0b, #b45309); color: #fff; }
.rank-info { flex: 1; }
.rank-info h3 { font-size: 16px; font-weight: 800; color: var(--text-main); margin-bottom: 2px; }
.rank-info .rank-desc { font-size: 13px; color: var(--text-body); }
.rank-score { text-align: center; }
.rank-score .score { font-size: 24px; font-weight: 900; color: var(--primary); }
.rank-score .label { font-size: 12px; color: var(--text-weak); }
.rank-tag { display: inline-block; padding: 3px 10px; border-radius: 999px; font-size: 12px; font-weight: 600; margin-left: 8px; }
.rank-tag.hot { background: #fecdd3; color: #be123c; }
.rank-tag.new { background: #bbf7d0; color: #166534; }

/* Hot news / article list */
.article-list { background: #fff; }
.article-row { display: flex; gap: 26px; padding: 26px 0; border-bottom: 1px solid var(--bg-gray); transition: padding .3s ease; }
.article-row:hover { padding-left: 8px; }
.article-thumb { width: 260px; min-width: 260px; aspect-ratio: 4/3; border-radius: var(--radius-md); overflow: hidden; }
.article-thumb img { width: 100%; height: 100%; object-fit: cover; transition: transform .4s ease; }
.article-row:hover .article-thumb img { transform: scale(1.04); }
.article-content { flex: 1; display: flex; flex-direction: column; }
.article-content .article-tag { align-self: flex-start; background: var(--primary-lighter); color: var(--primary-dark); font-size: 12px; font-weight: 700; padding: 3px 12px; border-radius: 999px; margin-bottom: 10px; }
.article-content h3 { font-size: 20px; font-weight: 800; color: var(--text-main); line-height: 1.4; margin-bottom: 8px; }
.article-content h3 a:hover { color: var(--primary); }
.article-content p { font-size: 14px; color: var(--text-body); line-height: 1.7; margin-bottom: 14px; }
.article-meta { display: flex; align-items: center; gap: 18px; font-size: 13px; color: var(--text-weak); }
.article-meta i { margin-right: 4px; }

/* Team / KOL */
.kol-band { background: linear-gradient(135deg, var(--bg-dark) 0%, #1e1b4b 100%); padding: 88px 0; color: #fff; }
.kol-band .section-header h2 { color: #fff; }
.kol-band .section-header p { color: rgba(255, 255, 255, .7); }
.kol-card { background: rgba(255, 255, 255, .06); border: 1px solid rgba(255, 255, 255, .12); border-radius: var(--radius-lg); padding: 28px 24px; text-align: center; transition: all .3s ease; }
.kol-card:hover { background: rgba(255, 255, 255, .1); transform: translateY(-4px); border-color: rgba(255, 255, 255, .2); }
.kol-avatar { width: 72px; height: 72px; margin: 0 auto 16px; border-radius: 50%; background: linear-gradient(135deg, var(--primary), var(--accent)); display: flex; align-items: center; justify-content: center; font-size: 28px; color: #fff; box-shadow: 0 8px 24px rgba(139, 92, 246, .35); }
.kol-card h3 { font-size: 18px; font-weight: 800; margin-bottom: 4px; }
.kol-card .kol-role { font-size: 14px; color: var(--primary-light); margin-bottom: 10px; display: block; }
.kol-card p { font-size: 14px; color: rgba(255, 255, 255, .65); line-height: 1.7; }

/* FAQ */
.faq-section { background: var(--bg-light); padding: 88px 0; }
.accordion { max-width: 800px; margin: 0 auto; }
.accordion-item { background: #fff; border: 1px solid var(--border); border-radius: var(--radius-md); margin-bottom: 14px; overflow: hidden; transition: box-shadow .3s ease; }
.accordion-item:has(.accordion-trigger[aria-expanded="true"]) { box-shadow: var(--shadow-md); border-color: var(--primary-lighter); }
.accordion-trigger { width: 100%; padding: 22px 24px; background: none; border: none; text-align: left; font-size: 17px; font-weight: 800; color: var(--text-main); cursor: pointer; display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.accordion-trigger i { font-size: 14px; color: var(--primary); transition: transform .3s ease; }
.accordion-trigger[aria-expanded="true"] i { transform: rotate(180deg); }
.accordion-content { max-height: 0; overflow: hidden; transition: max-height .35s ease; }
.accordion-content-inner { padding: 0 24px 22px; font-size: 15px; color: var(--text-body); line-height: 1.8; }

/* CTA */
.cta-band { padding: 72px 0; background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 50%, #4c1d95 100%); position: relative; overflow: hidden; }
.cta-band::before { content: ''; position: absolute; inset: 0; background: url('/assets/images/backpic/back-3.png') no-repeat center/cover; opacity: .15; }
.cta-band::after { content: ''; position: absolute; width: 400px; height: 400px; border-radius: 50%; background: rgba(255, 255, 255, .08); top: -200px; right: -100px; }
.cta-band .container { position: relative; z-index: 2; display: flex; justify-content: space-between; align-items: center; gap: 40px; flex-wrap: wrap; }
.cta-text h2 { font-size: 30px; font-weight: 900; color: #fff; margin-bottom: 8px; }
.cta-text p { color: rgba(255, 255, 255, .85); font-size: 16px; }
.cta-btns { display: flex; gap: 14px; flex-wrap: wrap; }
.btn { display: inline-flex; align-items: center; gap: 8px; padding: 13px 28px; border-radius: 999px; font-weight: 800; font-size: 15px; cursor: pointer; transition: all .3s ease; border: none; }
.btn-light { background: #fff; color: var(--primary-dark); box-shadow: 0 4px 18px rgba(255, 255, 255, .2); }
.btn-light:hover { transform: translateY(-2px); box-shadow: 0 8px 28px rgba(255, 255, 255, .32); }
.btn-outline-light { background: transparent; color: #fff; border: 2px solid rgba(255, 255, 255, .6); }
.btn-outline-light:hover { background: rgba(255, 255, 255, .12); border-color: #fff; transform: translateY(-2px); }

/* Footer */
.footer { background: var(--bg-dark); color: rgba(255, 255, 255, .75); padding: 72px 0 0; }
.footer-grid { display: grid; grid-template-columns: 2fr 1fr 1fr; gap: 48px; padding-bottom: 48px; border-bottom: 1px solid rgba(255, 255, 255, .1); }
.footer-brand .logo { color: #fff; margin-bottom: 16px; font-size: 22px; }
.footer-brand .logo i { color: var(--primary-light); }
.footer-brand p { font-size: 14px; line-height: 1.8; color: rgba(255, 255, 255, .6); max-width: 400px; margin-bottom: 20px; }
.footer-social { display: flex; gap: 12px; }
.footer-social a { width: 40px; height: 40px; border-radius: 50%; background: rgba(255, 255, 255, .08); display: flex; align-items: center; justify-content: center; font-size: 16px; color: #fff; transition: all .3s; }
.footer-social a:hover { background: var(--primary); transform: translateY(-3px); }
.footer-title { font-size: 16px; font-weight: 800; color: #fff; margin-bottom: 18px; padding-bottom: 12px; position: relative; display: inline-block; }
.footer-title::after { content: ''; position: absolute; bottom: 0; left: 0; width: 30px; height: 3px; background: linear-gradient(90deg, var(--primary), var(--accent)); border-radius: 3px; }
.footer-links li { margin-bottom: 10px; }
.footer-links li a { font-size: 14px; color: rgba(255, 255, 255, .6); display: inline-flex; align-items: center; transition: all .25s; }
.footer-links li a:hover { color: #fff; padding-left: 4px; }
.footer-bottom { padding: 22px 0; display: flex; justify-content: space-between; align-items: center; font-size: 13px; color: rgba(255, 255, 255, .45); flex-wrap: wrap; gap: 10px; }
.footer-bottom a { color: rgba(255, 255, 255, .6); }
.footer-bottom a:hover { color: #fff; }

/* Responsive */
@media (max-width: 1024px) {
  .header-inner { padding: 0 16px; }
  .nav-links { gap: 4px; }
  .nav-links li a { padding: 8px 12px; font-size: 14px; }
}

@media (max-width: 768px) {
  :root { --space-section: 64px; }
  .menu-toggle { display: block; }
  .nav-links { display: none; position: absolute; top: 72px; left: 0; right: 0; background: #fff; flex-direction: column; padding: 16px 20px; gap: 8px; box-shadow: 0 20px 40px rgba(15, 23, 42, .1); border-bottom: 1px solid var(--border); }
  .nav-links.open { display: flex; }
  .nav-links li a { padding: 12px 16px; border-radius: 10px; font-size: 15px; }
  .page-banner { padding: 56px 0 48px; }
  .page-banner h1 { font-size: 30px; }
  .article-row { flex-direction: column; gap: 16px; }
  .article-thumb { width: 100%; min-width: 0; }
  .featured-stats { flex-wrap: wrap; gap: 8px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; padding-bottom: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .step-arrow { transform: rotate(90deg); padding: 6px 0; }
  .cta-band { text-align: center; justify-content: center; }
  .cta-btns { justify-content: center; }
  .rank-card { flex-wrap: wrap; }
  .rank-score { width: 100%; text-align: left; padding-left: 62px; }
}

@media (max-width: 520px) {
  .page-banner h1 { font-size: 26px; }
  .section-header h2 { font-size: 26px; }
  .filter-tabs { gap: 8px; }
  .filter-tab { padding: 8px 14px; font-size: 13px; }
  .card-body { padding: 16px; }
  .feat-meta { padding: 16px; }
  .accordion-trigger { font-size: 15px; padding: 18px 16px; }
  .accordion-content-inner { padding: 0 16px 18px; font-size: 14px; }
  .banner-badge { font-size: 12px; padding: 5px 12px; }
  .btn { padding: 11px 20px; font-size: 14px; }
  .rank-card { gap: 12px; padding: 16px; }
  .footer-social a { width: 36px; height: 36px; }
  .logo { font-size: 19px; }
}