/* roulang page: index */
:root{
  --primary:#0b6e6e;
  --primary-dark:#085552;
  --primary-light:#e2f3f3;
  --primary-ultra-light:#f0f8f8;
  --accent:#f5a623;
  --accent-light:#fff4e2;
  --bg-white:#ffffff;
  --bg-soft:#f5f9f9;
  --bg-dark:#0f2b2b;
  --text:#1c3333;
  --text-muted:#5f7a7a;
  --border:#dce8e8;
  --radius:16px;
  --radius-sm:10px;
  --radius-xs:6px;
  --shadow:0 4px 20px rgba(0,0,0,.05);
  --shadow-hover:0 10px 36px rgba(0,0,0,.10);
  --shadow-primary:0 8px 24px rgba(11,110,110,.18);
  --spacer:4.5rem;
  --transition:all .3s ease;
  --bs-primary:var(--primary);
  --bs-primary-rgb:11,110,110;
}

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

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

body{
  font-family:"PingFang SC","HarmonyOS Sans SC","Microsoft YaHei","Helvetica Neue",Arial,sans-serif;
  font-size:16px;
  line-height:1.7;
  color:var(--text);
  background:var(--bg-white);
  overflow-x:hidden;
}

img{max-width:100%;height:auto;display:block}
a{text-decoration:none;color:var(--primary);transition:var(--transition)}
a:hover{color:var(--primary-dark)}
ul,ol{list-style:none}
button,input,select,textarea{font-family:inherit;font-size:inherit;line-height:inherit}

.container{max-width:1200px;padding-left:20px;padding-right:20px}
.section{padding:var(--spacer) 0;position:relative}
.section-soft{background:var(--bg-soft)}
.section-label{
  display:inline-flex;align-items:center;gap:8px;
  font-size:14px;font-weight:600;color:var(--primary);
  background:var(--primary-light);padding:6px 16px;border-radius:50px;
  margin-bottom:16px;
}
.section-title{
  font-size:2.1rem;font-weight:700;color:var(--text);
  line-height:1.3;margin-bottom:14px;letter-spacing:-.5px;
}
.section-subtitle{
  font-size:1.05rem;color:var(--text-muted);
  max-width:680px;margin-bottom:36px;line-height:1.7;
}

/* ===== 按钮 ===== */
.btn{border-radius:50px;font-weight:600;padding:.65rem 1.7rem;transition:var(--transition);border:2px solid transparent}
.btn-primary{
  background:var(--primary);border-color:var(--primary);color:#fff;
  --bs-btn-bg:var(--primary);--bs-btn-border-color:var(--primary);
  --bs-btn-hover-bg:var(--primary-dark);--bs-btn-hover-border-color:var(--primary-dark);
  --bs-btn-active-bg:var(--primary-dark);--bs-btn-active-border-color:var(--primary-dark);
  --bs-btn-focus-shadow-rgb:11,110,110;
}
.btn-primary:hover{background:var(--primary-dark);border-color:var(--primary-dark);transform:translateY(-2px);box-shadow:var(--shadow-primary)}
.btn-outline-primary{
  background:transparent;border-color:var(--primary);color:var(--primary);
  --bs-btn-color:var(--primary);--bs-btn-border-color:var(--primary);
  --bs-btn-hover-bg:var(--primary);--bs-btn-hover-border-color:var(--primary);
  --bs-btn-active-bg:var(--primary);--bs-btn-active-border-color:var(--primary);
  --bs-btn-focus-shadow-rgb:11,110,110;
}
.btn-outline-primary:hover{color:#fff;transform:translateY(-2px);box-shadow:var(--shadow-primary)}
.btn-outline-light{background:transparent;border-color:rgba(255,255,255,.7);color:#fff;--bs-btn-hover-bg:rgba(255,255,255,.15);--bs-btn-hover-border-color:#fff;--bs-btn-active-bg:rgba(255,255,255,.2)}
.btn-outline-light:hover{color:#fff;transform:translateY(-2px)}
.btn-light-cta{background:#fff;border-color:#fff;color:var(--primary);--bs-btn-hover-bg:#f0f8f8;--bs-btn-hover-border-color:#fff;--bs-btn-hover-color:var(--primary-dark)}
.btn-light-cta:hover{transform:translateY(-2px);box-shadow:0 10px 30px rgba(0,0,0,.15)}
.btn-lg{padding:.9rem 2.2rem;font-size:1.05rem}
.btn .fa{margin-right:6px}
.btn:focus,.btn:focus-visible{outline:3px solid rgba(11,110,110,.25);outline-offset:2px;box-shadow:none}

/* ===== 导航 ===== */
.custom-navbar{
  background:rgba(255,255,255,.96);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid var(--border);
  padding:14px 0;
  position:sticky;top:0;z-index:1040;
  box-shadow:0 2px 16px rgba(0,0,0,.04);
}
.navbar-brand.logo-text{
  font-size:1.35rem;font-weight:800;color:var(--text);letter-spacing:-.3px;
  display:flex;align-items:center;gap:8px;
}
.navbar-brand.logo-text .logo-icon{
  width:38px;height:38px;border-radius:10px;
  background:linear-gradient(135deg,var(--primary),var(--primary-dark));
  display:flex;align-items:center;justify-content:center;color:#fff;font-size:18px;
  box-shadow:var(--shadow-primary);
}
.nav-chips{
  display:flex;align-items:center;gap:6px;
}
.nav-chips .nav-item{margin:0}
.nav-chips .chip{
  display:inline-flex;align-items:center;padding:.5rem 1.25rem;
  border-radius:50px;font-size:14px;font-weight:600;
  color:var(--text-muted);border:1.5px solid transparent;
  transition:var(--transition);
}
.nav-chips .chip:hover{
  color:var(--primary);background:var(--primary-ultra-light);
  border-color:var(--primary-light);
  transform:translateY(-1px);
}
.nav-chips .chip.active{
  color:var(--primary);background:var(--primary-light);
  border-color:rgba(11,110,110,.18);
  font-weight:700;
}
.navbar-toggler{
  border:1.5px solid var(--border);border-radius:var(--radius-sm);
  padding:.45rem .65rem;
}
.navbar-toggler:focus{box-shadow:0 0 0 3px rgba(11,110,110,.15);outline:none}
.navbar-toggler-icon{background-image:url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(11,110,110,0.8)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e")}
.navbar-cta{margin-left:8px}
.navbar-cta .btn{padding:.5rem 1.3rem;font-size:14px}

/* ===== Hero ===== */
.hero{
  position:relative;
  background:linear-gradient(135deg,rgba(10,40,40,.88),rgba(8,60,58,.78)),url('/assets/images/backpic/back-1.png') center/cover fixed no-repeat;
  padding:7.5rem 0 6rem;
  color:#fff;
  overflow:hidden;
}
.hero::after{
  content:'';position:absolute;bottom:-2px;left:0;width:100%;height:80px;
  background:linear-gradient(to bottom,rgba(0,0,0,0),rgba(8,38,38,.4));
  pointer-events:none;
}
.hero .container{position:relative;z-index:5}
.hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.12);border:1px solid rgba(255,255,255,.25);
  backdrop-filter:blur(4px);
  color:#d8f0f0;font-size:14px;font-weight:500;
  padding:.4rem 1.1rem;border-radius:50px;margin-bottom:22px;
}
.hero-badge .fa-circle{color:#7de0c8;font-size:8px;animation:pulse 2s infinite}
@keyframes pulse{0%,100%{opacity:1}50%{opacity:.4}}
.hero h1{
  font-size:3.2rem;font-weight:800;line-height:1.15;
  margin-bottom:18px;letter-spacing:-1px;
  text-shadow:0 4px 30px rgba(0,0,0,.3);
}
.hero h1 .highlight{
  color:#7de0c8;position:relative;
}
.hero p.lead-text{
  font-size:1.15rem;color:rgba(255,255,255,.86);
  max-width:620px;margin-bottom:36px;line-height:1.8;
}
.hero-buttons{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:50px}
.hero-stats{
  display:grid;grid-template-columns:repeat(4,1fr);gap:16px;
  border-top:1px solid rgba(255,255,255,.18);
  padding-top:36px;
}
.stat-item{
  background:rgba(255,255,255,.08);
  border:1px solid rgba(255,255,255,.14);
  backdrop-filter:blur(6px);
  border-radius:var(--radius);padding:22px 18px;
  text-align:center;transition:var(--transition);
}
.stat-item:hover{background:rgba(255,255,255,.15);transform:translateY(-4px)}
.stat-number{font-size:2rem;font-weight:800;color:#fff;line-height:1.2}
.stat-number .fa{font-size:1.6rem;color:#7de0c8;margin-right:4px}
.stat-label{font-size:13px;color:rgba(255,255,255,.7);margin-top:6px;font-weight:500}

/* ===== 核心说明 ===== */
.intro-grid{display:grid;grid-template-columns:1.1fr 1fr;gap:50px;align-items:center}
.intro-content .intro-text{
  color:var(--text-muted);font-size:1.02rem;line-height:1.85;margin-bottom:18px;
}
.intro-list{margin-top:24px}
.intro-list li{
  display:flex;align-items:flex-start;gap:12px;
  padding:12px 0;border-bottom:1px solid var(--border);
}
.intro-list li:last-child{border-bottom:none}
.intro-list .icon-wrap{
  flex-shrink:0;width:34px;height:34px;border-radius:9px;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:15px;
}
.intro-list strong{display:block;font-size:15px;margin-bottom:2px}
.intro-list span{font-size:14px;color:var(--text-muted)}
.intro-image-wrap{
  position:relative;border-radius:var(--radius);
  overflow:hidden;box-shadow:var(--shadow-hover);
}
.intro-image-wrap img{width:100%;height:420px;object-fit:cover;transition:transform .6s ease}
.intro-image-wrap:hover img{transform:scale(1.03)}
.intro-image-wrap::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(to top,rgba(8,38,38,.25),transparent 45%);
}
.intro-badge-float{
  position:absolute;left:20px;bottom:20px;z-index:2;
  background:rgba(255,255,255,.92);backdrop-filter:blur(6px);
  border-radius:var(--radius-sm);padding:14px 20px;display:flex;align-items:center;gap:14px;
  box-shadow:var(--shadow);font-size:14px;color:var(--text);
}
.intro-badge-float .fa{font-size:26px;color:var(--primary)}

/* ===== 分类卡片 ===== */
.category-card{
  background:var(--bg-white);border-radius:var(--radius);
  border:1px solid var(--border);
  overflow:hidden;height:100%;transition:var(--transition);
  display:flex;flex-direction:column;
}
.category-card:hover{
  box-shadow:var(--shadow-hover);transform:translateY(-5px);
  border-color:rgba(11,110,110,.25);
}
.category-card .card-img-wrap{
  position:relative;overflow:hidden;height:230px;
}
.category-card .card-img-wrap img{width:100%;height:100%;object-fit:cover;transition:transform .6s ease}
.category-card:hover .card-img-wrap img{transform:scale(1.06)}
.category-card .card-img-wrap::after{
  content:'';position:absolute;inset:0;
  background:linear-gradient(to top,rgba(8,38,38,.35),transparent 45%);
}
.category-card .card-cat-badge{
  position:absolute;top:16px;right:16px;z-index:2;
  background:rgba(255,255,255,.92);backdrop-filter:blur(6px);
  color:var(--primary);font-size:13px;font-weight:600;
  padding:.3rem .85rem;border-radius:50px;
}
.category-card .card-body{padding:26px;flex:1;display:flex;flex-direction:column}
.category-card .card-body h3{font-size:1.25rem;font-weight:700;margin-bottom:10px}
.category-card .card-body p{font-size:14px;color:var(--text-muted);line-height:1.75;flex:1}
.category-card .card-link{
  display:inline-flex;align-items:center;gap:8px;
  font-weight:600;font-size:14px;color:var(--primary);
  margin-top:18px;transition:var(--transition);
}
.category-card .card-link:hover{gap:12px;color:var(--primary-dark)}
.category-card .card-link .fa{font-size:12px}

/* ===== 资讯列表 ===== */
.news-section{background:var(--bg-soft)}
.news-layout{display:grid;grid-template-columns:1.4fr .6fr;gap:40px;align-items:start}
.news-list{display:flex;flex-direction:column;gap:0}
.news-item{
  background:var(--bg-white);border:1px solid var(--border);
  border-radius:var(--radius);padding:24px 26px;
  transition:var(--transition);position:relative;
  margin-bottom:16px;
}
.news-item:last-child{margin-bottom:0}
.news-item:hover{
  box-shadow:var(--shadow-hover);border-color:rgba(11,110,110,.2);
  transform:translateX(4px);
}
.news-item::before{
  content:'';position:absolute;left:0;top:24px;bottom:24px;width:3px;
  background:var(--primary);border-radius:0 4px 4px 0;
  opacity:0;transition:var(--transition);
}
.news-item:hover::before{opacity:1}
.news-meta{display:flex;align-items:center;gap:10px;margin-bottom:10px;flex-wrap:wrap}
.news-cat-badge{
  display:inline-block;background:var(--primary-light);color:var(--primary);
  font-size:12px;font-weight:600;padding:.25rem .8rem;border-radius:50px;
}
.news-date{font-size:13px;color:var(--text-muted)}
.news-item h4{font-size:1.05rem;font-weight:700;margin-bottom:8px}
.news-item h4 a{color:var(--text)}
.news-item h4 a:hover{color:var(--primary)}
.news-item .news-summary{
  font-size:14px;color:var(--text-muted);line-height:1.7;
  display:-webkit-box;-webkit-line-clamp:2;-webkit-box-orient:vertical;overflow:hidden;
}
.news-sidebar{
  background:linear-gradient(160deg,var(--bg-dark),#123c3c);
  border-radius:var(--radius);padding:30px 26px;color:#fff;
  position:sticky;top:90px;
}
.news-sidebar h3{font-size:1.15rem;font-weight:700;margin-bottom:14px;display:flex;align-items:center;gap:8px}
.news-sidebar h3 .fa{color:#7de0c8}
.news-sidebar p{font-size:14px;color:rgba(255,255,255,.75);line-height:1.8}
.news-sidebar .btn{margin-top:16px}
.empty-text{
  background:var(--bg-white);border:1px dashed var(--border);
  border-radius:var(--radius);padding:36px;text-align:center;
  color:var(--text-muted);font-size:15px;
}

/* ===== 优势 ===== */
.feature-card{
  background:var(--bg-white);border:1px solid var(--border);
  border-radius:var(--radius);padding:30px 26px;
  height:100%;transition:var(--transition);position:relative;overflow:hidden;
}
.feature-card::after{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--primary),#2a9d8f);
  opacity:0;transition:var(--transition);
}
.feature-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.feature-card:hover::after{opacity:1}
.feature-icon{
  width:56px;height:56px;border-radius:14px;
  background:var(--primary-light);color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:24px;margin-bottom:20px;transition:var(--transition);
}
.feature-card:hover .feature-icon{background:var(--primary);color:#fff;transform:scale(1.08) rotate(-4deg)}
.feature-card h3{font-size:1.08rem;font-weight:700;margin-bottom:10px}
.feature-card p{font-size:14px;color:var(--text-muted);line-height:1.75}

/* ===== 流程 ===== */
.steps-wrap{display:grid;grid-template-columns:repeat(4,1fr);gap:24px;counter-reset:step}
.step-card{
  position:relative;background:var(--bg-white);
  border:1px solid var(--border);border-radius:var(--radius);
  padding:32px 22px 26px;text-align:center;transition:var(--transition);
}
.step-card:hover{box-shadow:var(--shadow-hover);transform:translateY(-4px)}
.step-card::before{
  counter-increment:step;content:counter(step,decimal-leading-zero);
  position:absolute;top:-14px;left:50%;transform:translateX(-50%);
  background:var(--primary);color:#fff;
  font-size:13px;font-weight:700;padding:.25rem .9rem;border-radius:50px;
  box-shadow:var(--shadow-primary);
}
.step-card .step-icon{
  font-size:32px;color:var(--primary);margin-bottom:14px;
}
.step-card h3{font-size:1.02rem;font-weight:700;margin-bottom:8px}
.step-card p{font-size:13px;color:var(--text-muted);line-height:1.65}

/* ===== FAQ ===== */
.accordion-list{max-width:800px;margin:0 auto}
.faq-item{
  background:var(--bg-white);border:1px solid var(--border);
  border-radius:var(--radius-sm);margin-bottom:12px;overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{border-color:rgba(11,110,110,.25);box-shadow:var(--shadow)}
.faq-item summary{
  display:flex;align-items:center;justify-content:space-between;
  padding:20px 24px;cursor:pointer;font-weight:600;font-size:15px;
  color:var(--text);list-style:none;transition:var(--transition);
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary:hover{color:var(--primary)}
.faq-item summary .fa-chevron-down{
  color:var(--primary);font-size:14px;transition:transform .3s ease;
  flex-shrink:0;margin-left:12px;
}
.faq-item[open] summary .fa-chevron-down{transform:rotate(180deg)}
.faq-item[open] summary{border-bottom:1px solid var(--border)}
.faq-item .faq-answer{padding:16px 24px 22px;font-size:14px;color:var(--text-muted);line-height:1.8}

/* ===== CTA ===== */
.cta-section{
  position:relative;
  background:linear-gradient(135deg,rgba(6,30,30,.9),rgba(11,62,60,.82)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding:6.5rem 0;color:#fff;text-align:center;
}
.cta-section h2{font-size:2.3rem;font-weight:800;margin-bottom:16px;letter-spacing:-.5px}
.cta-section p{font-size:1.1rem;color:rgba(255,255,255,.8);max-width:600px;margin:0 auto 32px}
.cta-buttons{display:flex;justify-content:center;flex-wrap:wrap;gap:14px}

/* ===== 页脚 ===== */
.site-footer{
  background:var(--bg-dark);color:rgba(255,255,255,.7);
  padding:3.5rem 0 0;position:relative;
}
.site-footer::before{
  content:'';position:absolute;top:0;left:0;right:0;height:3px;
  background:linear-gradient(90deg,var(--primary),#2a9d8f,var(--accent));
}
.footer-top{display:grid;grid-template-columns:1.4fr 1fr 1fr;gap:40px;padding-bottom:40px}
.footer-brand .footer-logo{
  font-size:1.3rem;font-weight:800;color:#fff;display:flex;align-items:center;gap:8px;margin-bottom:14px;
}
.footer-brand .footer-logo .logo-icon{
  width:34px;height:34px;border-radius:9px;background:var(--primary);
  display:flex;align-items:center;justify-content:center;font-size:16px;color:#fff;
}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(255,255,255,.6);max-width:320px}
.footer-col h4{
  font-size:15px;font-weight:700;color:#fff;margin-bottom:18px;position:relative;padding-bottom:10px;
}
.footer-col h4::after{
  content:'';position:absolute;left:0;bottom:0;width:28px;height:2px;background:var(--primary);
  border-radius:2px;
}
.footer-col ul li{margin-bottom:10px}
.footer-col ul li a{
  color:rgba(255,255,255,.6);font-size:14px;transition:var(--transition);
  display:inline-flex;align-items:center;gap:6px;
}
.footer-col ul li a:hover{color:#fff;padding-left:4px}
.footer-col ul li a .fa{font-size:11px;color:#7de0c8}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.08);
  padding:20px 0;font-size:13px;color:rgba(255,255,255,.42);
  text-align:center;
}
.footer-bottom a{color:rgba(255,255,255,.6)}
.footer-bottom a:hover{color:#fff}

/* ===== 响应式 ===== */
@media (max-width:1024px){
  :root{--spacer:3.5rem}
  .hero{padding:6rem 0 4.5rem}
  .hero h1{font-size:2.6rem}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:14px}
  .intro-grid{grid-template-columns:1fr;gap:36px}
  .intro-image-wrap img{height:340px}
  .news-layout{grid-template-columns:1fr;gap:32px}
  .news-sidebar{position:static}
  .steps-wrap{grid-template-columns:repeat(2,1fr);gap:20px}
}

@media (max-width:768px){
  body{font-size:15px}
  .custom-navbar{padding:10px 0}
  .navbar-brand.logo-text{font-size:1.15rem}
  .navbar-brand.logo-text .logo-icon{width:32px;height:32px;font-size:15px}
  .nav-chips{gap:4px;padding:10px 0 0}
  .nav-chips .chip{font-size:13px;padding:.4rem 1rem}
  .navbar-cta{margin-left:0;margin-top:10px}
  .hero{padding:4.5rem 0 3.5rem;background-attachment:scroll}
  .hero h1{font-size:2.1rem}
  .hero p.lead-text{font-size:1rem;margin-bottom:28px}
  .hero-buttons{gap:10px;margin-bottom:36px}
  .hero-buttons .btn{width:100%;max-width:260px}
  .hero-stats{grid-template-columns:repeat(2,1fr);gap:10px}
  .stat-number{font-size:1.6rem}
  .section-title{font-size:1.6rem}
  .section-subtitle{font-size:1rem}
  .category-card .card-img-wrap{height:190px}
  .news-item{padding:20px}
  .cta-section h2{font-size:1.8rem}
  .footer-top{grid-template-columns:1fr;gap:28px;padding-bottom:28px}
  .steps-wrap{grid-template-columns:1fr;gap:24px}
}

@media (max-width:520px){
  :root{--spacer:2.8rem}
  .hero h1{font-size:1.8rem}
  .hero p.lead-text{font-size:.95rem}
  .hero-stats{grid-template-columns:1fr 1fr;gap:8px}
  .stat-item{padding:16px 10px}
  .stat-number{font-size:1.35rem}
  .stat-number .fa{font-size:1.1rem}
  .intro-image-wrap img{height:260px}
  .btn{padding:.55rem 1.3rem;font-size:14px}
  .btn-lg{padding:.75rem 1.6rem}
  .news-item h4{font-size:.98rem}
  .faq-item summary{padding:16px 18px;font-size:14px}
  .faq-item .faq-answer{padding:14px 18px 18px}
  .cta-buttons .btn{width:100%;max-width:240px}
}

/* roulang page: category1 */
:root {
  --primary: #0f6b5f;
  --primary-dark: #0a4f46;
  --primary-soft: #e2f0ee;
  --accent: #e8a33d;
  --accent-soft: #fdf1dd;
  --bg: #f4f7f7;
  --surface: #ffffff;
  --text: #1f2c30;
  --text-weak: #63767c;
  --border: #dfe7e8;
  --radius: 16px;
  --radius-sm: 10px;
  --shadow-sm: 0 4px 14px rgba(15, 43, 45, .06);
  --shadow: 0 14px 36px rgba(15, 43, 45, .09);
  --shadow-lg: 0 22px 48px rgba(15, 43, 45, .13);
  --transition: .3s cubic-bezier(.4, 0, .2, 1);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

body.modal-open { padding-right: 0 !important; }

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

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

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

.container { max-width: 1220px; }

.btn { border-radius: 50rem; font-weight: 600; padding: .65rem 1.45rem; transition: all var(--transition); border: 2px solid transparent; }

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

.btn-primary:hover, .btn-primary:focus {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(15, 107, 95, .3);
}

.btn-outline-light {
  border-color: rgba(255, 255, 255, .8);
  color: #fff;
  background: transparent;
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, .15);
  border-color: #fff;
  color: #fff;
  transform: translateY(-2px);
}

.btn-accent {
  background: var(--accent);
  border-color: var(--accent);
  color: #1f2c30;
}

.btn-accent:hover {
  background: #d8942e;
  border-color: #d8942e;
  color: #1f2c30;
  transform: translateY(-2px);
  box-shadow: 0 10px 24px rgba(232, 163, 61, .3);
}

.btn:focus, .form-control:focus, .form-check-input:focus {
  box-shadow: 0 0 0 4px rgba(15, 107, 95, .18);
  border-color: var(--primary);
}

.section-label {
  display: inline-flex;
  align-items: center;
  gap: .45rem;
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-soft);
  padding: .3rem 1rem;
  border-radius: 50rem;
  margin-bottom: .8rem;
}

.section-label .dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
}

.section-title {
  font-size: clamp(1.7rem, 3.2vw, 2.35rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.3;
  margin-bottom: .7rem;
  color: var(--text);
}

.section-desc {
  font-size: 1rem;
  color: var(--text-weak);
  max-width: 640px;
  line-height: 1.8;
}

section { padding: 5.5rem 0; }

.page-wrapper { min-height: 100vh; display: flex; flex-direction: column; }

/* ===== Header / Navigation ===== */
.custom-navbar {
  background: rgba(255, 255, 255, .95);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: .75rem 0;
  position: sticky;
  top: 0;
  z-index: 1050;
  box-shadow: 0 2px 18px rgba(15, 43, 45, .04);
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--text) !important;
  display: inline-flex;
  align-items: center;
  gap: .6rem;
  letter-spacing: -.01em;
}

.logo-icon {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  box-shadow: 0 6px 16px rgba(15, 107, 95, .3);
  flex-shrink: 0;
}

.nav-chips { gap: .45rem; }

.nav-chips .chip {
  display: inline-block;
  padding: .5rem 1.2rem;
  border-radius: 50rem;
  font-size: .93rem;
  font-weight: 600;
  color: var(--text);
  background: #f1f5f4;
  border: 1px solid transparent;
  transition: all var(--transition);
  white-space: nowrap;
}

.nav-chips .chip:hover {
  background: var(--primary-soft);
  color: var(--primary);
  transform: translateY(-1px);
}

.nav-chips .chip.active {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 6px 18px rgba(15, 107, 95, .28);
}

.navbar-cta { margin-left: .5rem; }

.navbar-toggler {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: .45rem .7rem;
  background: #f8fbfa;
}

.navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(15, 107, 95, .15); }

.navbar-toggler .navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3E%3Cpath stroke='%230f6b5f' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3E%3C/svg%3E");
}

@media (max-width: 991.98px) {
  .nav-chips { gap: .35rem; margin: .8rem 0 .5rem; }
  .nav-chips .chip { width: 100%; text-align: center; padding: .65rem 1rem; }
  .navbar-cta { margin: 0 0 .5rem; }
  .navbar-cta .btn { width: 100%; }
}

/* ===== Page Hero ===== */
.page-hero {
  position: relative;
  padding: 6rem 0 5rem;
  background: linear-gradient(135deg, rgba(7, 38, 38, .92), rgba(15, 107, 95, .82)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  color: #fff;
}

.page-hero::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 6px;
  background: linear-gradient(90deg, var(--accent), var(--primary), var(--accent));
}

.page-hero .hero-inner { position: relative; z-index: 2; max-width: 860px; }

.page-hero .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: .5rem;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .22);
  padding: .4rem 1.1rem;
  border-radius: 50rem;
  font-size: .85rem;
  font-weight: 600;
  backdrop-filter: blur(8px);
  margin-bottom: 1.3rem;
}

.page-hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.9rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.25;
  margin-bottom: 1rem;
}

.page-hero .hero-desc {
  font-size: 1.08rem;
  color: rgba(255, 255, 255, .85);
  max-width: 660px;
  line-height: 1.85;
  margin-bottom: 1.8rem;
}

.page-hero .hero-tags { display: flex; flex-wrap: wrap; gap: .6rem; }

.page-hero .hero-tag {
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .16);
  color: rgba(255, 255, 255, .92);
  padding: .35rem 1rem;
  border-radius: 50rem;
  font-size: .86rem;
  font-weight: 500;
  backdrop-filter: blur(4px);
}

.page-hero .hero-actions { display: flex; flex-wrap: wrap; gap: .9rem; margin-top: 1.8rem; }

/* ===== Category Cards ===== */
.game-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.game-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
  border-color: rgba(15, 107, 95, .25);
}

.game-card .card-img-wrap {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

.game-card .card-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}

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

.game-card .card-img-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, transparent 45%, rgba(8, 32, 32, .45));
}

.game-card .card-body { padding: 1.5rem; }

.game-card .card-tag {
  display: inline-block;
  background: var(--primary-soft);
  color: var(--primary);
  padding: .25rem .85rem;
  border-radius: 50rem;
  font-size: .78rem;
  font-weight: 700;
  margin-bottom: .8rem;
}

.game-card .card-title {
  font-size: 1.25rem;
  font-weight: 700;
  margin-bottom: .5rem;
}

.game-card .card-text {
  color: var(--text-weak);
  font-size: .94rem;
  line-height: 1.75;
  margin-bottom: 1.1rem;
}

.game-card .card-link { font-weight: 600; font-size: .92rem; }

/* ===== Feature / Deep Dives ===== */
.tips-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.6rem;
  height: 100%;
  transition: all var(--transition);
}

.tips-card:hover {
  box-shadow: var(--shadow);
  border-color: rgba(15, 107, 95, .25);
  transform: translateY(-3px);
}

.tips-card .icon-box {
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--primary-soft);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.3rem;
  margin-bottom: 1rem;
}

.tips-card h4 { font-size: 1.06rem; font-weight: 700; margin-bottom: .5rem; }

.tips-card p { color: var(--text-weak); font-size: .92rem; line-height: 1.75; margin-bottom: 0; }

/* ===== KPI Section ===== */
.kpi-section {
  background: linear-gradient(135deg, #0c3430, #0f5b50);
  padding: 4.6rem 0;
  color: #fff;
}

.kpi-card {
  text-align: center;
  padding: 1.6rem 1rem;
  background: rgba(255, 255, 255, .07);
  border: 1px solid rgba(255, 255, 255, .13);
  border-radius: var(--radius);
  backdrop-filter: blur(6px);
  transition: all var(--transition);
  height: 100%;
}

.kpi-card:hover {
  background: rgba(255, 255, 255, .12);
  transform: translateY(-4px);
}

.kpi-card .kpi-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--accent);
  line-height: 1.2;
}

.kpi-card .kpi-label {
  font-size: .92rem;
  color: rgba(255, 255, 255, .75);
  margin-top: .35rem;
}

/* ===== Process Steps ===== */
.step-list {
  position: relative;
  padding-left: 2.2rem;
  margin: 0;
  list-style: none;
}

.step-list::before {
  content: "";
  position: absolute;
  left: 14px;
  top: 12px;
  bottom: 12px;
  width: 2px;
  background: linear-gradient(180deg, var(--primary), var(--accent), transparent);
  border-radius: 2px;
}

.step-item {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.4rem 1.5rem 1.4rem 2.2rem;
  margin-bottom: 1.1rem;
  transition: all var(--transition);
}

.step-item:hover {
  box-shadow: var(--shadow-sm);
  border-color: rgba(15, 107, 95, .25);
  transform: translateX(3px);
}

.step-item::before {
  content: attr(data-step);
  position: absolute;
  left: -1.5rem;
  top: 1.3rem;
  width: 30px;
  height: 30px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .82rem;
  font-weight: 800;
  box-shadow: 0 0 0 4px #fff, 0 6px 16px rgba(15, 107, 95, .28);
  z-index: 2;
}

.step-item h5 { font-size: 1.02rem; font-weight: 700; margin-bottom: .3rem; }

.step-item p { color: var(--text-weak); font-size: .92rem; margin-bottom: 0; line-height: 1.7; }

/* ===== FAQ ===== */
.accordion-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.accordion-button {
  font-weight: 600;
  color: var(--text);
  padding: 1.2rem 1.5rem;
  background: var(--surface);
  border-radius: var(--radius) !important;
  font-size: 1rem;
}

.accordion-button:not(.collapsed) {
  background: var(--primary-soft);
  color: var(--primary-dark);
  box-shadow: none;
}

.accordion-button:focus { box-shadow: none; border-color: rgba(15, 107, 95, .3); }

.accordion-button::after { background-size: 1.1rem; }

.accordion-body {
  padding: 1.2rem 1.5rem 1.4rem;
  color: var(--text-weak);
  line-height: 1.8;
  font-size: .95rem;
  border-top: 1px solid var(--border);
}

/* ===== CTA ===== */
.cta-box {
  position: relative;
  border-radius: calc(var(--radius) + 8px);
  overflow: hidden;
  padding: 3.6rem 2.5rem;
  background: linear-gradient(120deg, var(--primary-dark), var(--primary));
  color: #fff;
  text-align: center;
}

.cta-box::before {
  content: "";
  position: absolute;
  top: -40%;
  right: -20%;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 255, 255, .14), transparent 65%);
}

.cta-box::after {
  content: "";
  position: absolute;
  bottom: -40%;
  left: -10%;
  width: 300px;
  height: 300px;
  background: radial-gradient(circle, rgba(232, 163, 61, .2), transparent 70%);
}

.cta-box .cta-title { font-size: 1.8rem; font-weight: 800; margin-bottom: .6rem; position: relative; z-index: 2; }

.cta-box .cta-text { color: rgba(255, 255, 255, .88); max-width: 620px; margin: 0 auto 1.6rem; position: relative; z-index: 2; }

.cta-box .cta-actions { position: relative; z-index: 2; display: flex; gap: .8rem; justify-content: center; flex-wrap: wrap; }

/* ===== Footer ===== */
.site-footer {
  background: #0a2b2b;
  color: rgba(255, 255, 255, .72);
  margin-top: auto;
  padding: 4rem 0 0;
}

.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 2.5rem;
  padding-bottom: 2.6rem;
  border-bottom: 1px solid rgba(255, 255, 255, .1);
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: .6rem;
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 1rem;
}

.footer-brand p {
  font-size: .9rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, .62);
  max-width: 380px;
}

.footer-col h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 1.1rem;
  letter-spacing: .02em;
}

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

.footer-col ul li { margin-bottom: .55rem; }

.footer-col ul a {
  color: rgba(255, 255, 255, .65);
  font-size: .9rem;
  display: inline-flex;
  align-items: center;
  gap: .4rem;
  transition: all var(--transition);
}

.footer-col ul a i {
  font-size: .7rem;
  color: var(--accent);
  transition: transform var(--transition);
}

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

.footer-col ul a:hover i { transform: translateX(3px); }

.footer-bottom {
  padding: 1.4rem 0;
  text-align: center;
  font-size: .84rem;
  color: rgba(255, 255, 255, .45);
}

.footer-bottom p { margin: 0; }

.footer-bottom a { color: rgba(255, 255, 255, .55); }

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

@media (max-width: 991px) {
  .footer-top { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 767px) {
  .footer-top { grid-template-columns: 1fr; gap: 2rem; }
}

/* ===== Responsive Spacing ===== */
@media (max-width: 767px) {
  section { padding: 3.8rem 0; }
  .page-hero { padding: 4.2rem 0 3.6rem; }
  .cta-box { padding: 2.8rem 1.4rem; }
}

@media (max-width: 520px) {
  .page-hero .hero-actions .btn { width: 100%; }
  .kpi-card .kpi-num { font-size: 2rem; }
  .step-item { padding: 1.2rem 1rem 1.2rem 1.9rem; }
}

/* roulang page: article */
:root {
  --primary: #0d6e6e;
  --primary-dark: #095353;
  --primary-light: #e6f4f1;
  --accent: #ffb347;
  --accent-light: #fff3e2;
  --bg: #f4f7f8;
  --surface: #ffffff;
  --text: #1e2a32;
  --text-weak: #6b7a82;
  --border: #e2e8ea;
  --radius: 18px;
  --radius-sm: 10px;
  --shadow: 0 12px 32px rgba(9, 83, 83, .08);
  --shadow-sm: 0 4px 16px rgba(9, 83, 83, .06);
  --space: 80px;
}

* { box-sizing: border-box; }
body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; text-decoration: none; transition: color .2s ease, background .2s ease, border-color .2s ease, box-shadow .2s ease; }
img { max-width: 100%; display: block; }
ul, ol { margin: 0; padding: 0; list-style: none; }
h1, h2, h3, h4, h5 { font-weight: 700; color: var(--text); }
.container { max-width: 1200px; }

/* ---------- 导航 ---------- */
.custom-navbar {
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  z-index: 1040;
}
.logo-text {
  font-size: 1.28rem;
  font-weight: 800;
  color: var(--primary) !important;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.logo-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: var(--primary-light);
  border-radius: 12px;
  color: var(--primary);
  font-size: 1.1rem;
}
.nav-chips {
  gap: 6px;
}
.nav-chips .chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 20px;
  border-radius: 100px;
  font-size: .92rem;
  font-weight: 600;
  color: var(--text-weak);
  border: 1px solid transparent;
  white-space: nowrap;
  transition: all .25s ease;
}
.nav-chips .chip:hover {
  color: var(--primary);
  background: var(--primary-light);
  border-color: rgba(13, 110, 110, .12);
  transform: translateY(-1px);
}
.nav-chips .chip.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 6px 18px rgba(13, 110, 110, .28);
}
.navbar-cta .btn-primary {
  background: var(--primary);
  border: none;
  border-radius: 100px;
  font-weight: 600;
  font-size: .92rem;
  padding: 10px 22px;
  box-shadow: 0 6px 18px rgba(13, 110, 110, .22);
  transition: all .25s ease;
}
.navbar-cta .btn-primary:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(13, 110, 110, .32);
}
.navbar-toggler {
  border-color: var(--border);
  border-radius: 10px;
  padding: 6px 10px;
}
.navbar-toggler:focus { box-shadow: 0 0 0 3px rgba(13, 110, 110, .12); }
.navbar-toggler-icon {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba(13,110,110,0.85)' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e") !important;
}
@media (max-width: 991.98px) {
  .navbar-collapse {
    padding: 16px 0 6px;
    border-top: 1px solid var(--border);
    margin-top: 12px;
  }
  .nav-chips {
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    margin-bottom: 14px !important;
  }
  .nav-chips .chip {
    justify-content: center;
    width: 100%;
    background: var(--bg);
    border-radius: 12px;
    padding: 12px 16px;
  }
  .nav-chips .chip.active {
    background: var(--primary);
    color: #fff;
  }
  .navbar-cta { text-align: center; }
  .navbar-cta .btn-primary { width: 100%; }
}

/* ---------- 文章头部 ---------- */
.article-hero {
  position: relative;
  padding: 100px 0 76px;
  background: linear-gradient(120deg, rgba(6, 48, 48, .96), rgba(13, 94, 84, .88)), url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  color: #fff;
}
.article-hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 80% 20%, rgba(255, 179, 71, .15), transparent 45%);
  pointer-events: none;
}
.article-hero .container { position: relative; z-index: 2; }
.breadcrumb-wrap {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: .86rem;
  color: rgba(255, 255, 255, .7);
  margin-bottom: 22px;
}
.breadcrumb-wrap a {
  color: rgba(255, 255, 255, .85);
  padding: 4px 10px;
  border-radius: 6px;
  background: rgba(255, 255, 255, .08);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.breadcrumb-wrap a:hover {
  background: rgba(255, 255, 255, .18);
  color: #fff;
}
.breadcrumb-wrap i { font-size: .7rem; }
.article-hero h1 {
  font-size: clamp(1.7rem, 4vw, 2.7rem);
  font-weight: 800;
  color: #fff;
  line-height: 1.35;
  max-width: 900px;
  margin-bottom: 20px;
  text-wrap: balance;
}
.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}
.article-meta .meta-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: rgba(255, 255, 255, .12);
  border: 1px solid rgba(255, 255, 255, .14);
  color: rgba(255, 255, 255, .92);
  font-size: .85rem;
  font-weight: 500;
  padding: 7px 16px;
  border-radius: 100px;
  backdrop-filter: blur(6px);
}
.article-meta .meta-chip i { color: var(--accent); font-size: .8rem; }

/* ---------- 主体布局 ---------- */
.article-main-section {
  padding: 0 0 var(--space);
}
.article-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 340px;
  gap: 36px;
  margin-top: -36px;
  align-items: start;
}
.article-main-col { min-width: 0; }
.article-card {
  background: var(--surface);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  overflow: hidden;
}
.article-cover img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}
.article-body {
  padding: 36px 40px 20px;
  font-size: 1.05rem;
  line-height: 1.9;
  color: #2b363c;
}
.article-body > *:first-child { margin-top: 0; }
.article-body h2 {
  font-size: 1.45rem;
  margin: 2.2rem 0 1rem;
  padding: 16px 20px;
  background: var(--primary-light);
  border-left: 4px solid var(--primary);
  border-radius: 0 10px 10px 0;
  color: var(--primary-dark);
  line-height: 1.4;
}
.article-body h3 {
  font-size: 1.22rem;
  margin: 1.8rem 0 .8rem;
  color: var(--primary-dark);
}
.article-body p { margin-bottom: 1.2rem; }
.article-body ul, .article-body ol { padding-left: 1.4rem; margin-bottom: 1.2rem; }
.article-body ul li, .article-body ol li { padding: .25rem 0; list-style: disc; }
.article-body ol li { list-style: decimal; }
.article-body blockquote {
  border-left: 4px solid var(--accent);
  background: var(--accent-light);
  padding: 18px 22px;
  border-radius: 0 12px 12px 0;
  margin: 1.5rem 0;
  font-style: italic;
  color: #5a4630;
}
.article-body img { border-radius: 14px; margin: 1.4rem 0; }
.article-body a { color: var(--primary); font-weight: 600; border-bottom: 1px dashed rgba(13, 110, 110, .4); }
.article-body a:hover { color: var(--primary-dark); border-bottom-style: solid; }
.article-body hr { border: 0; border-top: 2px solid var(--border); margin: 2.4rem 0; }
.article-tags {
  padding: 16px 40px 36px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  border-top: 1px solid var(--border);
  margin-top: 8px;
}
.tag-chip {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 7px 16px;
  border-radius: 100px;
  font-size: .84rem;
  font-weight: 600;
  color: var(--text-weak);
}
.tag-chip i { color: var(--primary); }

/* ---------- 侧栏 ---------- */
.article-side-col { min-width: 0; }
.sidebar-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 26px;
  margin-bottom: 22px;
  box-shadow: var(--shadow-sm);
}
.sidebar-title {
  font-size: 1.05rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 10px;
  padding-bottom: 14px;
  margin-bottom: 6px;
  border-bottom: 2px solid var(--primary-light);
  color: var(--primary-dark);
}
.sidebar-title i { color: var(--primary); }
.sidebar-list li {
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
}
.sidebar-list li:last-child { border-bottom: 0; padding-bottom: 0; }
.sidebar-list a {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.sidebar-list .list-title {
  font-weight: 600;
  font-size: .95rem;
  color: var(--text);
  line-height: 1.45;
}
.sidebar-list a:hover .list-title { color: var(--primary); }
.sidebar-list .list-meta {
  font-size: .8rem;
  color: var(--text-weak);
  display: flex;
  align-items: center;
  gap: 6px;
}
.sidebar-nav {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-top: 12px;
}
.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px 16px;
  border-radius: 12px;
  background: var(--bg);
  border: 1px solid var(--border);
  font-weight: 600;
  font-size: .92rem;
  color: var(--text);
}
.sidebar-nav a:hover {
  background: var(--primary-light);
  border-color: rgba(13, 110, 110, .18);
  color: var(--primary);
  transform: translateX(3px);
}
.sidebar-nav a i { width: 20px; color: var(--primary); text-align: center; }

/* ---------- 数据带 ---------- */
.stats-band-section {
  background: var(--primary-dark);
  padding: 56px 0;
  margin-bottom: 0;
  position: relative;
  overflow: hidden;
}
.stats-band-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(255, 179, 71, .08), transparent 60%);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
  position: relative;
  z-index: 2;
}
.stat-item {
  text-align: center;
  padding: 18px 12px;
  border-radius: 16px;
  background: rgba(255, 255, 255, .05);
  border: 1px solid rgba(255, 255, 255, .1);
  transition: all .3s ease;
}
.stat-item:hover {
  background: rgba(255, 255, 255, .1);
  transform: translateY(-4px);
}
.stat-num {
  display: block;
  font-size: 2.2rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}
.stat-label {
  display: block;
  font-size: .9rem;
  font-weight: 500;
  color: rgba(255, 255, 255, .7);
  margin-top: 6px;
}

/* ---------- 相关推荐 ---------- */
.related-section {
  padding: var(--space) 0 40px;
}
.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 32px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary-light);
  border: 1px solid rgba(13, 110, 110, .12);
  color: var(--primary);
  font-size: .82rem;
  font-weight: 700;
  padding: 6px 16px;
  border-radius: 100px;
  margin-bottom: 8px;
}
.section-head h2 {
  font-size: 1.9rem;
  font-weight: 800;
  margin: 0;
  color: var(--text);
}
.section-head-desc {
  color: var(--text-weak);
  font-size: .95rem;
  max-width: 420px;
}
.recommend-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 16px;
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-sm);
  transition: transform .3s ease, box-shadow .3s ease;
}
.recommend-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow);
}
.recommend-cover {
  height: 180px;
  overflow: hidden;
  background: var(--primary-light);
}
.recommend-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s ease;
}
.recommend-card:hover .recommend-cover img { transform: scale(1.05); }
.recommend-body {
  padding: 20px 22px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.recommend-cat {
  display: inline-block;
  font-size: .78rem;
  font-weight: 700;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 12px;
  border-radius: 100px;
  width: fit-content;
  margin-bottom: 10px;
}
.recommend-title {
  font-size: 1.05rem;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
}
.recommend-card:hover .recommend-title { color: var(--primary); }
.recommend-desc {
  font-size: .88rem;
  color: var(--text-weak);
  line-height: 1.6;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 16px;
}
.recommend-meta {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .82rem;
  color: var(--text-weak);
}
.recommend-meta i { color: var(--primary); font-size: .75rem; }

/* ---------- CTA ---------- */
.cta-section {
  padding: 30px 0 var(--space);
}
.cta-box {
  position: relative;
  border-radius: 24px;
  padding: 64px 48px;
  background: linear-gradient(120deg, rgba(9, 78, 78, .94), rgba(18, 112, 100, .9)), url('/assets/images/backpic/back-2.png') center center / cover no-repeat;
  color: #fff;
  text-align: center;
  overflow: hidden;
  box-shadow: var(--shadow);
}
.cta-box::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 200px;
  height: 200px;
  border-radius: 50%;
  background: rgba(255, 179, 71, .18);
  filter: blur(20px);
}
.cta-box h2 {
  color: #fff;
  font-size: 2rem;
  font-weight: 800;
  margin-bottom: 14px;
  position: relative;
  z-index: 2;
}
.cta-box p {
  color: rgba(255, 255, 255, .82);
  font-size: 1.05rem;
  max-width: 560px;
  margin: 0 auto 30px;
  position: relative;
  z-index: 2;
}
.cta-btns {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;
  position: relative;
  z-index: 2;
}
.cta-btns .btn {
  border-radius: 100px;
  font-weight: 600;
  padding: 12px 26px;
  font-size: .95rem;
  transition: all .25s ease;
}
.cta-btns .btn-light {
  background: #fff;
  color: var(--primary-dark);
  border: none;
}
.cta-btns .btn-light:hover { transform: translateY(-2px); box-shadow: 0 10px 24px rgba(0, 0, 0, .15); }
.cta-btns .btn-outline-light {
  border: 1px solid rgba(255, 255, 255, .5);
  color: #fff;
  background: transparent;
}
.cta-btns .btn-outline-light:hover { background: rgba(255, 255, 255, .12); }

/* ---------- FAQ ---------- */
.faq-section {
  padding: 0 0 var(--space);
}
.faq-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 44px;
  box-shadow: var(--shadow-sm);
}
.accordion-item {
  border: 0;
  border-bottom: 1px solid var(--border);
  background: transparent;
}
.accordion-item:last-child { border-bottom: 0; }
.accordion-button {
  background: transparent;
  box-shadow: none;
  font-size: 1rem;
  font-weight: 700;
  padding: 20px 4px;
  color: var(--text);
}
.accordion-button:not(.collapsed) {
  color: var(--primary);
  background: transparent;
  box-shadow: none;
}
.accordion-button:focus {
  box-shadow: none;
  border-radius: 8px;
}
.accordion-button::after {
  background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16' fill='%230d6e6e'%3e%3cpath fill-rule='evenodd' d='M1.646 4.646a.5.5 0 0 1 .708 0L8 10.293l5.646-5.647a.5.5 0 0 1 .708.708l-6 6a.5.5 0 0 1-.708 0l-6-6a.5.5 0 0 1 0-.708z'/%3e%3c/svg%3e");
  background-size: 14px;
}
.accordion-body {
  padding: 0 4px 22px;
  color: var(--text-weak);
  font-size: .95rem;
  line-height: 1.75;
}

/* ---------- 页脚 ---------- */
.site-footer {
  background: #0b2b2b;
  color: rgba(255, 255, 255, .7);
  padding: 56px 0 24px;
  border-top: 3px solid var(--primary);
}
.footer-top {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr;
  gap: 44px;
  padding-bottom: 32px;
  border-bottom: 1px solid rgba(255, 255, 255, .08);
  margin-bottom: 24px;
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 1.2rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
}
.footer-logo .logo-icon {
  background: rgba(255, 255, 255, .1);
  color: #fff;
}
.footer-brand p {
  font-size: .9rem;
  line-height: 1.8;
  color: rgba(255, 255, 255, .6);
  max-width: 380px;
  margin: 0;
}
.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.footer-col ul li {
  margin-bottom: 10px;
}
.footer-col ul a {
  color: rgba(255, 255, 255, .65);
  font-size: .9rem;
}
.footer-col ul a i { font-size: .7rem; margin-right: 8px; color: var(--accent); }
.footer-col ul a:hover {
  color: #fff;
  padding-left: 4px;
}
.footer-bottom {
  text-align: center;
  font-size: .85rem;
  color: rgba(255, 255, 255, .45);
}
.footer-bottom a { color: rgba(255, 255, 255, .68); }
.footer-bottom a:hover { color: #fff; }

/* ---------- 未找到 ---------- */
.not-found-section {
  padding: 120px 0;
  min-height: 60vh;
}
.not-found-card {
  max-width: 560px;
  margin: 0 auto;
  text-align: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: var(--shadow);
  padding: 56px 40px;
}
.not-found-icon {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.8rem;
  margin-bottom: 24px;
}
.not-found-card h1 {
  font-size: 1.7rem;
  font-weight: 800;
  margin-bottom: 12px;
  color: var(--text);
}
.not-found-card p {
  color: var(--text-weak);
  font-size: 1rem;
  margin-bottom: 28px;
}
.btn-back {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  border: none;
  border-radius: 100px;
  font-weight: 600;
  padding: 12px 28px;
  transition: all .25s ease;
}
.btn-back:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(13, 110, 110, .25);
  color: #fff;
}

/* ---------- 响应式 ---------- */
@media (max-width: 1024px) {
  .article-layout { grid-template-columns: 1fr; }
  .article-side-col { order: 2; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); }
  :root { --space: 60px; }
}
@media (max-width: 768px) {
  .article-hero { padding: 70px 0 60px; }
  .article-body { padding: 28px 22px 16px; }
  .article-tags { padding: 14px 22px 28px; }
  .article-cover img { height: 220px; }
  .cta-box { padding: 44px 26px; border-radius: 18px; }
  .cta-box h2 { font-size: 1.6rem; }
  .faq-card { padding: 28px 22px; }
  .footer-top { grid-template-columns: 1fr; gap: 32px; }
  .section-head h2 { font-size: 1.6rem; }
}
@media (max-width: 520px) {
  .article-layout { gap: 24px; }
  .article-hero h1 { font-size: 1.4rem; }
  .article-meta .meta-chip { font-size: .78rem; padding: 6px 12px; }
  .stats-grid { grid-template-columns: 1fr; gap: 14px; }
  .stat-num { font-size: 1.9rem; }
  .cta-btns .btn { width: 100%; }
  .not-found-card { padding: 40px 24px; }
}

/* roulang page: category2 */
:root {
            --primary: #0f2a43;
            --primary-light: #1e3a5f;
            --primary-dark: #0a1f33;
            --accent: #0ea5e9;
            --accent2: #14b8a6;
            --accent-soft: rgba(14, 165, 233, 0.12);
            --accent2-soft: rgba(20, 184, 166, 0.12);
            --bg: #f4f7fb;
            --card-bg: #ffffff;
            --text: #1e293b;
            --text-weak: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --shadow: 0 4px 24px rgba(15, 42, 67, 0.06);
            --shadow-hover: 0 12px 36px rgba(15, 42, 67, 0.12);
            --space-section: 80px;
            --font: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

        a {
            color: var(--accent);
            text-decoration: none;
            transition: color .25s ease;
        }

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

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

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            font-weight: 700;
            color: var(--primary);
            line-height: 1.35;
            margin-bottom: .5rem;
        }

        .container {
            max-width: 1200px;
            padding-left: 20px;
            padding-right: 20px;
        }

        .section {
            padding: var(--space-section) 0;
        }

        .section-head {
            display: flex;
            flex-wrap: wrap;
            align-items: flex-end;
            justify-content: space-between;
            gap: 20px;
            margin-bottom: 40px;
        }

        .section-title {
            font-size: 2rem;
            margin-bottom: 8px;
            position: relative;
            padding-bottom: 14px;
        }

        .section-title::after {
            content: "";
            position: absolute;
            bottom: 0;
            left: 0;
            width: 48px;
            height: 4px;
            border-radius: 8px;
            background: linear-gradient(90deg, var(--accent), var(--accent2));
        }

        .section-sub {
            color: var(--text-weak);
            font-size: .95rem;
            max-width: 640px;
        }

        .chip {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            padding: 8px 18px;
            border-radius: 999px;
            font-size: .88rem;
            font-weight: 500;
            color: var(--text);
            background: #fff;
            border: 1px solid var(--border);
            transition: all .25s ease;
            white-space: nowrap;
        }

        .chip:hover,
        .chip.active {
            background: var(--primary);
            color: #fff;
            border-color: var(--primary);
            box-shadow: 0 6px 18px rgba(15, 42, 67, 0.18);
            transform: translateY(-1px);
        }

        /* ---- Custom Navbar ---- */
        .custom-navbar {
            background: rgba(255, 255, 255, 0.96);
            backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(226, 232, 240, 0.8);
            padding-top: 10px;
            padding-bottom: 10px;
            box-shadow: 0 2px 12px rgba(15, 42, 67, 0.04);
        }

        .logo-text {
            font-size: 1.25rem;
            font-weight: 800;
            color: var(--primary);
            letter-spacing: -0.02em;
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .logo-text:hover {
            color: var(--primary);
        }

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 40px;
            height: 40px;
            border-radius: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-light));
            color: #fff;
            font-size: 1rem;
            box-shadow: 0 6px 16px rgba(15, 42, 67, 0.22);
        }

        .nav-chips {
            gap: 6px;
        }

        .nav-chips .nav-item {
            list-style: none;
        }

        .navbar-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .navbar-cta .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
            border-radius: 999px;
            padding: 8px 20px;
            font-weight: 600;
            font-size: .88rem;
            transition: all .25s ease;
        }

        .navbar-cta .btn-primary:hover {
            background: var(--accent);
            border-color: var(--accent);
            transform: translateY(-2px);
            box-shadow: 0 8px 20px rgba(14, 165, 233, 0.30);
        }

        .navbar-toggler {
            border: 1px solid var(--border);
            border-radius: 10px;
            padding: 6px 10px;
        }

        @media (max-width: 991.98px) {
            .nav-chips {
                gap: 4px;
                margin-top: 14px;
                margin-bottom: 10px;
            }
            .navbar-cta {
                margin-top: 6px;
            }
        }

        @media (max-width: 575.98px) {
            .nav-chips {
                flex-wrap: nowrap;
                overflow-x: auto;
                padding-bottom: 6px;
            }
            .nav-chips .chip {
                flex-shrink: 0;
            }
            .logo-text {
                font-size: 1.1rem;
            }
            .logo-icon {
                width: 34px;
                height: 34px;
                font-size: .9rem;
            }
        }

        /* ---- Banner ---- */
        .guide-banner {
            position: relative;
            padding: 110px 0 100px;
            background-image: linear-gradient(100deg, rgba(10, 31, 51, 0.92), rgba(30, 58, 95, 0.72)), url('/assets/images/backpic/back-2.png');
            background-size: cover;
            background-position: center;
            color: #fff;
            text-align: center;
        }

        .guide-banner .tag-badge {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: rgba(255, 255, 255, 0.14);
            border: 1px solid rgba(255, 255, 255, 0.22);
            border-radius: 999px;
            padding: 5px 16px;
            font-size: .82rem;
            font-weight: 600;
            letter-spacing: .03em;
            color: #e0f2fe;
            margin-bottom: 22px;
            backdrop-filter: blur(6px);
        }

        .guide-banner h1 {
            color: #fff;
            font-size: 2.9rem;
            font-weight: 800;
            letter-spacing: -0.02em;
            margin-bottom: 16px;
        }

        .guide-banner h1 span {
            color: #7dd3fc;
        }

        .guide-banner p {
            max-width: 660px;
            margin: 0 auto 28px;
            font-size: 1.05rem;
            color: rgba(255, 255, 255, 0.78);
        }

        .banner-stats {
            display: flex;
            justify-content: center;
            gap: 30px;
            flex-wrap: wrap;
            margin-top: 30px;
        }

        .banner-stats .stat-box {
            text-align: center;
            min-width: 120px;
            padding: 12px 16px;
            background: rgba(255, 255, 255, 0.08);
            border: 1px solid rgba(255, 255, 255, 0.14);
            border-radius: 14px;
            backdrop-filter: blur(6px);
        }

        .banner-stats .num {
            font-size: 1.6rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .banner-stats .label {
            font-size: .8rem;
            color: rgba(255, 255, 255, 0.6);
        }

        @media (max-width: 768px) {
            .guide-banner {
                padding: 70px 0 60px;
            }
            .guide-banner h1 {
                font-size: 2rem;
            }
            .guide-banner p {
                font-size: .95rem;
            }
        }

        /* ---- Filter chips ---- */
        .filter-bar {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            padding: 16px;
            display: flex;
            flex-wrap: wrap;
            gap: 10px;
            align-items: center;
            margin-top: -32px;
            position: relative;
            z-index: 2;
            box-shadow: var(--shadow);
        }

        /* ---- Cards ---- */
        .guide-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            height: 100%;
            transition: all .3s ease;
            display: flex;
            flex-direction: column;
            box-shadow: 0 2px 8px rgba(15, 42, 67, 0.03);
        }

        .guide-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(14, 165, 233, 0.30);
        }

        .guide-card .card-img-wrap {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16/10;
        }

        .guide-card .card-img-wrap img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

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

        .guide-card .card-img-wrap::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 60%, rgba(15, 42, 67, 0.25));
            pointer-events: none;
        }

        .guide-card .card-tag {
            position: absolute;
            top: 14px;
            left: 14px;
            z-index: 2;
            background: var(--primary);
            color: #fff;
            font-size: .72rem;
            font-weight: 600;
            padding: 3px 12px;
            border-radius: 999px;
            letter-spacing: .02em;
        }

        .guide-card .card-body {
            padding: 22px 20px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .guide-card h3 {
            font-size: 1.12rem;
            margin-bottom: 10px;
            line-height: 1.5;
        }

        .guide-card p {
            font-size: .88rem;
            color: var(--text-weak);
            flex: 1;
            margin-bottom: 16px;
        }

        .guide-card .card-meta {
            display: flex;
            align-items: center;
            justify-content: space-between;
            font-size: .78rem;
            color: var(--text-weak);
            border-top: 1px solid #f1f5f9;
            padding-top: 14px;
        }

        .guide-card .card-meta .meta-item {
            display: flex;
            align-items: center;
            gap: 5px;
        }

        .guide-card .btn-link-card {
            font-size: .82rem;
            font-weight: 600;
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: gap .25s ease;
        }

        .guide-card .btn-link-card:hover {
            gap: 10px;
            color: var(--primary);
        }

        @media (max-width: 767.98px) {
            .guide-card h3 {
                font-size: 1rem;
            }
        }

        /* ---- Stats dark panel ---- */
        .stats-panel {
            background-image: linear-gradient(120deg, rgba(10, 31, 51, 0.94), rgba(15, 42, 67, 0.88)), url('/assets/images/backpic/back-1.png');
            background-size: cover;
            background-position: center;
            border-radius: 24px;
            padding: 50px 40px;
            color: #fff;
            border: 1px solid rgba(255, 255, 255, 0.08);
        }

        .stats-panel .stat-item {
            text-align: center;
            padding: 20px 12px;
            border-radius: 16px;
            background: rgba(255, 255, 255, 0.06);
            border: 1px solid rgba(255, 255, 255, 0.10);
            transition: all .3s ease;
        }

        .stats-panel .stat-item:hover {
            background: rgba(255, 255, 255, 0.12);
            transform: translateY(-3px);
        }

        .stats-panel .stat-num {
            font-size: 2.2rem;
            font-weight: 800;
            color: #7dd3fc;
            line-height: 1.2;
        }

        .stats-panel .stat-name {
            font-size: .85rem;
            color: rgba(255, 255, 255, 0.65);
            margin-top: 6px;
        }

        @media (max-width: 767.98px) {
            .stats-panel {
                padding: 30px 20px;
            }
            .stats-panel .stat-num {
                font-size: 1.6rem;
            }
        }

        /* ---- Ranking ---- */
        .rank-panel {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow);
        }

        .rank-item {
            display: flex;
            align-items: center;
            padding: 16px 20px;
            border-bottom: 1px solid #f1f5f9;
            transition: background .25s ease;
        }

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

        .rank-item:hover {
            background: #f8fafc;
        }

        .rank-num {
            width: 42px;
            height: 42px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 800;
            font-size: .95rem;
            background: var(--bg);
            color: var(--text-weak);
            margin-right: 14px;
            flex-shrink: 0;
        }

        .rank-item:nth-child(1) .rank-num {
            background: linear-gradient(135deg, #fbbf24, #f59e0b);
            color: #fff;
        }
        .rank-item:nth-child(2) .rank-num {
            background: linear-gradient(135deg, #94a3b8, #64748b);
            color: #fff;
        }
        .rank-item:nth-child(3) .rank-num {
            background: linear-gradient(135deg, #d97706, #b45309);
            color: #fff;
        }

        .rank-info {
            flex: 1;
        }

        .rank-info h4 {
            font-size: .95rem;
            margin-bottom: 2px;
        }

        .rank-info .rank-desc {
            font-size: .78rem;
            color: var(--text-weak);
        }

        .rank-heat {
            text-align: right;
            min-width: 80px;
        }

        .rank-heat .heat-num {
            font-size: .9rem;
            font-weight: 700;
            color: var(--primary);
        }

        .rank-heat .heat-bar {
            height: 6px;
            border-radius: 8px;
            background: #e2e8f0;
            margin-top: 5px;
            overflow: hidden;
        }

        .rank-heat .heat-bar i {
            display: block;
            height: 100%;
            border-radius: 8px;
            background: linear-gradient(90deg, var(--accent), var(--accent2));
        }

        @media (max-width: 575.98px) {
            .rank-item {
                flex-wrap: wrap;
                row-gap: 6px;
            }
            .rank-heat {
                min-width: 100%;
                text-align: left;
            }
        }

        /* ---- Process steps ---- */
        .step-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--radius);
            padding: 28px 22px;
            height: 100%;
            text-align: center;
            transition: all .3s ease;
            position: relative;
        }

        .step-card:hover {
            box-shadow: var(--shadow-hover);
            transform: translateY(-3px);
            border-color: rgba(14, 165, 233, 0.25);
        }

        .step-icon {
            width: 56px;
            height: 56px;
            border-radius: 16px;
            background: var(--accent-soft);
            color: var(--accent);
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.3rem;
            margin-bottom: 16px;
        }

        .step-card h4 {
            font-size: 1rem;
            margin-bottom: 8px;
        }

        .step-card p {
            font-size: .84rem;
            color: var(--text-weak);
            margin-bottom: 0;
        }

        .step-num {
            position: absolute;
            top: 12px;
            right: 16px;
            font-size: 2.4rem;
            font-weight: 800;
            color: #f1f5f9;
            line-height: 1;
        }

        /* ---- FAQ ---- */
        .faq-wrap .accordion-item {
            border: 1px solid var(--border);
            border-radius: 12px !important;
            overflow: hidden;
            margin-bottom: 12px;
            background: #fff;
            box-shadow: 0 1px 4px rgba(15, 42, 67, 0.02);
        }

        .faq-wrap .accordion-button {
            font-weight: 600;
            font-size: .95rem;
            color: var(--text);
            padding: 18px 22px;
            background: #fff;
        }

        .faq-wrap .accordion-button:not(.collapsed) {
            background: var(--accent-soft);
            color: var(--primary);
            box-shadow: none;
        }

        .faq-wrap .accordion-button:focus {
            box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.15);
        }

        .faq-wrap .accordion-body {
            font-size: .88rem;
            color: var(--text-weak);
            padding: 10px 22px 20px;
        }

        /* ---- CTA ---- */
        .cta-section {
            background: linear-gradient(120deg, var(--primary), var(--primary-light));
            border-radius: 24px;
            padding: 50px 40px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: "";
            position: absolute;
            top: -60px;
            right: -40px;
            width: 220px;
            height: 220px;
            border-radius: 50%;
            background: rgba(125, 211, 252, 0.12);
        }

        .cta-section h2 {
            color: #fff;
            font-size: 1.8rem;
            margin-bottom: 10px;
        }

        .cta-section p {
            color: rgba(255, 255, 255, 0.7);
            font-size: .95rem;
            max-width: 520px;
            margin: 0 auto 24px;
        }

        .cta-section .btn-light {
            border-radius: 999px;
            padding: 10px 26px;
            font-weight: 600;
            margin: 6px;
        }

        .cta-section .btn-outline-light {
            border-radius: 999px;
            padding: 10px 26px;
            font-weight: 600;
            margin: 6px;
        }

        @media (max-width: 767.98px) {
            .cta-section {
                padding: 36px 22px;
            }
            .cta-section h2 {
                font-size: 1.3rem;
            }
        }

        /* ---- Footer ---- */
        .site-footer {
            background: var(--primary-dark);
            color: rgba(255, 255, 255, 0.72);
            padding: 60px 0 0;
            margin-top: 60px;
        }

        .footer-top {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            padding-bottom: 36px;
            border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        }

        .footer-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 14px;
        }

        .footer-logo .logo-icon {
            width: 36px;
            height: 36px;
            border-radius: 10px;
        }

        .footer-brand p {
            font-size: .85rem;
            line-height: 1.8;
            color: rgba(255, 255, 255, 0.5);
            max-width: 360px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: .95rem;
            margin-bottom: 18px;
        }

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

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

        .footer-col ul a {
            color: rgba(255, 255, 255, 0.6);
            font-size: .85rem;
            display: inline-flex;
            align-items: center;
            gap: 6px;
            transition: color .25s ease;
        }

        .footer-col ul a:hover {
            color: #7dd3fc;
        }

        .footer-bottom {
            padding: 22px 0;
            text-align: center;
            font-size: .82rem;
            color: rgba(255, 255, 255, 0.4);
        }

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

        .footer-bottom a:hover {
            color: #7dd3fc;
        }

        @media (max-width: 767.98px) {
            .footer-top {
                grid-template-columns: 1fr;
                gap: 28px;
            }
        }

        /* ---- misc ---- */
        .btn-primary {
            background: var(--primary);
            border-color: var(--primary);
        }

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

        .back-to-top {
            position: fixed;
            bottom: 24px;
            right: 24px;
            width: 44px;
            height: 44px;
            border-radius: 12px;
            background: var(--primary);
            color: #fff;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            opacity: 0;
            visibility: hidden;
            transition: all .3s ease;
            z-index: 99;
            box-shadow: 0 8px 24px rgba(15, 42, 67, 0.3);
        }

        .back-to-top.show {
            opacity: 1;
            visibility: visible;
        }

        .back-to-top:hover {
            background: var(--accent);
            color: #fff;
            transform: translateY(-2px);
        }

        @media (max-width: 575.98px) {
            .section {
                padding: 50px 0;
            }
            .section-title {
                font-size: 1.4rem;
            }
        }