/* roulang page: index */
:root{--brand:#5B4BDA;--brand-dark:#4535C2;--brand-light:#EEEAFF;--ink:#1A2340;--muted:#66708A;--line:#E6E9F2;--bg:#F7F8FC;--white:#fff;--radius:16px;--radius-sm:10px;--shadow-sm:0 2px 8px rgba(20,26,58,.05);--shadow-md:0 12px 30px rgba(20,26,58,.08);--shadow-lg:0 24px 60px rgba(20,26,58,.12);--space:96px}
*,*::before,*::after{box-sizing:border-box}
body{margin:0;background:var(--bg);color:var(--ink);font-family:-apple-system,BlinkMacSystemFont,"PingFang SC","Microsoft YaHei","Segoe UI",Roboto,sans-serif;line-height:1.7;font-size:16px}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none;transition:color .2s ease}
a:focus-visible,button:focus-visible,input:focus-visible,textarea:focus-visible{outline:3px solid rgba(91,75,218,.35);outline-offset:2px}
button,input,textarea,select{font:inherit}
h1,h2,h3,h4,h5,.h1,.h2,.h3{font-weight:800;line-height:1.25;color:var(--ink);margin:0}
h1,.h1{font-size:clamp(2rem,5vw,3.4rem);letter-spacing:-.02em}
h2,.h2{font-size:clamp(1.5rem,3vw,2.25rem);letter-spacing:-.01em}
h3,.h3{font-size:1.2rem}
p{margin:0 0 1rem}
.grid-container{max-width:1200px;width:100%;margin-left:auto;margin-right:auto;padding-left:20px;padding-right:20px}
.section{padding:var(--space) 0}
.section-sm{padding:56px 0}
.bg-white{background:var(--white)}
.bg-soft{background:var(--bg)}
.text-center{text-align:center}
.text-muted{color:var(--muted)}
.badge{display:inline-flex;align-items:center;gap:6px;padding:6px 14px;border-radius:999px;font-size:.82rem;font-weight:700;background:var(--brand-light);color:var(--brand)}
.badge-soft{background:#F0F4F8;color:#526484}
.badge-success{background:#E3F7EF;color:#0E9F6E}
.badge-gold{background:#FFF4D6;color:#B7791F}
.button{display:inline-flex;align-items:center;justify-content:center;gap:8px;padding:12px 26px;border-radius:999px;font-weight:700;border:2px solid transparent;transition:all .2s ease;line-height:1.2}
.button.primary{background:var(--brand);color:#fff}
.button.primary:hover{background:var(--brand-dark);transform:translateY(-2px);box-shadow:var(--shadow-md)}
.button.light{background:#fff;color:var(--brand)}
.button.light:hover{background:var(--brand-light)}
.button.outline{border-color:var(--brand);color:var(--brand);background:transparent}
.button.outline:hover{background:var(--brand);color:#fff}
.button.large{padding:15px 34px;font-size:1.05rem}
.button.small{padding:8px 18px;font-size:.88rem}
.text-link{font-weight:700;color:var(--brand);display:inline-flex;align-items:center;gap:6px}
.text-link:hover{color:var(--brand-dark);gap:10px}
.site-header{position:sticky;top:0;z-index:50;background:rgba(255,255,255,.88);backdrop-filter:blur(16px);border-bottom:1px solid var(--line)}
.header-inner{display:flex;align-items:center;justify-content:space-between;height:72px;gap:16px}
.brand-logo{display:inline-flex;align-items:center;gap:10px;font-weight:900;font-size:1.16rem;color:var(--ink)}
.brand-mark{width:38px;height:38px;border-radius:12px;background:linear-gradient(135deg,var(--brand),#8A6BFF);color:#fff;display:inline-flex;align-items:center;justify-content:center;font-weight:900;font-size:1.2rem;box-shadow:0 6px 14px rgba(91,75,218,.3)}
.site-nav{display:flex;align-items:center;gap:8px}
.site-nav .nav-link{padding:10px 16px;border-radius:999px;font-weight:600;color:var(--muted);font-size:.95rem}
.site-nav .nav-link:hover{color:var(--brand);background:var(--brand-light)}
.site-nav .nav-link.active{color:var(--brand);background:var(--brand-light)}
.header-cta{margin-left:8px;flex-shrink:0}
.nav-toggle{display:none;width:42px;height:42px;border:0;background:var(--brand-light);border-radius:10px;cursor:pointer;position:relative}
.nav-toggle span{display:block;width:18px;height:2px;background:var(--brand);margin:4px auto;border-radius:2px;transition:.2s}
.hero{position:relative;padding:130px 0 160px;background-image:linear-gradient(135deg,rgba(43,29,145,.9),rgba(8,14,49,.86)),url('/assets/images/backpic/back-1.png');background-size:cover;background-position:center;color:#fff}
.hero-content{max-width:820px;margin:0 auto;text-align:center}
.hero-content h1{color:#fff;margin:22px 0 20px}
.hero-content p{color:rgba(255,255,255,.88);font-size:1.15rem;max-width:640px;margin:0 auto 36px}
.hero-actions{display:flex;gap:14px;justify-content:center;flex-wrap:wrap}
.hero-stats{position:relative;z-index:2;margin-top:-72px}
.hero-stats .stats-card{background:#fff;border-radius:var(--radius);box-shadow:var(--shadow-lg);padding:30px 20px;text-align:center;border-bottom:4px solid var(--brand)}
.hero-stats .stat-num{font-size:2.1rem;font-weight:900;color:var(--brand);line-height:1.1}
.hero-stats .stat-label{color:var(--muted);font-size:.9rem;margin-top:6px;font-weight:600}
.section-header{max-width:700px;margin-bottom:48px}
.section-header .section-title{margin:12px 0 14px}
.feature-grid{margin-top:8px}
.feature-card{background:#fff;border-radius:var(--radius);border:1px solid var(--line);overflow:hidden;height:100%;display:flex;flex-direction:column;transition:all .28s ease}
.feature-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-md);border-color:transparent}
.feature-thumb{height:190px;overflow:hidden}
.feature-thumb img{width:100%;height:100%;object-fit:cover;transition:transform .5s ease}
.feature-card:hover .feature-thumb img{transform:scale(1.05)}
.feature-body{padding:24px;display:flex;flex-direction:column;gap:10px;flex:1}
.feature-body .feature-icon{width:42px;height:42px;border-radius:12px;background:var(--brand-light);color:var(--brand);display:inline-flex;align-items:center;justify-content:center;font-size:1.1rem;margin-bottom:4px}
.feature-body .feature-title{font-size:1.12rem;font-weight:800}
.feature-body p{color:var(--muted);font-size:.94rem;margin:0}
.post-card{background:#fff;border-radius:var(--radius);border:1px solid var(--line);padding:24px;height:100%;display:flex;flex-direction:column;gap:10px;transition:all .25s ease}
.post-card:hover{box-shadow:var(--shadow-md);transform:translateY(-4px)}
.post-card-top{display:flex;align-items:center;justify-content:space-between;gap:10px;font-size:.85rem}
.post-date{color:var(--muted)}
.post-title{font-size:1.08rem;font-weight:800;line-height:1.4}
.post-title a:hover{color:var(--brand)}
.post-excerpt{color:var(--muted);font-size:.92rem;flex:1;margin:0}
.empty-tip{grid-column:1/-1;text-align:center;padding:40px;color:var(--muted);background:var(--white);border-radius:var(--radius)}
.category-card{position:relative;border-radius:var(--radius);overflow:hidden;height:100%;background-size:cover;background-position:center;display:flex;align-items:flex-end;min-height:300px;box-shadow:var(--shadow-sm);transition:transform .3s ease,box-shadow .3s ease}
.category-card::before{content:"";position:absolute;inset:0;background:linear-gradient(180deg,rgba(20,26,58,0),rgba(20,26,58,.82))}
.category-card:hover{transform:translateY(-6px);box-shadow:var(--shadow-lg)}
.category-card-body{position:relative;padding:28px;color:#fff;display:flex;flex-direction:column;gap:8px}
.category-card-body .category-label{font-weight:700;font-size:1.25rem}
.category-card-body p{color:rgba(255,255,255,.85);font-size:.93rem;margin:0}
.steps-grid .step-card{position:relative;text-align:left;padding:28px;background:#fff;border-radius:var(--radius);border:1px solid var(--line);height:100%}
.step-num{font-size:2.4rem;font-weight:900;color:var(--brand-light);line-height:1}
.step-title{font-weight:800;font-size:1.1rem;margin:14px 0 8px}
.step-card p{color:var(--muted);font-size:.93rem;margin:0}
.progress-wrap{margin-top:28px;background:#fff;border-radius:18px;padding:26px;border:1px solid var(--line)}
.progress-row{display:flex;align-items:center;gap:14px;margin-bottom:14px}
.progress-row:last-child{margin-bottom:0}
.progress-meta{flex:0 0 110px;font-weight:700;font-size:.9rem}
.progress-track{flex:1;height:10px;background:var(--bg);border-radius:99px;overflow:hidden}
.progress-bar{height:100%;border-radius:99px;background:linear-gradient(90deg,var(--brand),#8A6BFF)}
.premium-card{background:#fff;border-radius:24px;overflow:hidden;border:1px solid var(--line);display:flex;flex-direction:column}
.premium-card .premium-head{padding:26px;background:linear-gradient(135deg,var(--brand-light),#F7F3FF);border-bottom:1px solid var(--line)}
.premium-card .premium-body{padding:26px;display:flex;flex-direction:column;gap:12px}
.premium-list{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:12px}
.premium-list li{display:flex;gap:10px;align-items:flex-start;color:var(--ink);font-size:.95rem}
.premium-list li i{color:var(--brand);margin-top:3px}
.accordion{border-radius:var(--radius);overflow:hidden;background:#fff;border:1px solid var(--line)}
.accordion .accordion-item{background:#fff;border-bottom:1px solid var(--line)}
.accordion .accordion-item:last-child{border-bottom:0}
.accordion .accordion-title{display:flex;align-items:center;gap:10px;padding:20px 22px;font-weight:700;color:var(--ink);cursor:pointer;font-size:1rem}
.accordion .accordion-title:hover{color:var(--brand)}
.accordion .accordion-content{padding:0 22px 20px;color:var(--muted);font-size:.94rem}
.faq-wrap{background:#fff;border-radius:var(--radius);border:1px solid var(--line);padding:0}
.cta-banner{position:relative;border-radius:28px;overflow:hidden;padding:70px 40px;background-image:linear-gradient(120deg,rgba(43,29,145,.92),rgba(8,14,49,.88)),url('/assets/images/backpic/back-2.png');background-size:cover;background-position:center;color:#fff;text-align:center}
.cta-banner h2{color:#fff;margin-bottom:14px}
.cta-banner p{color:rgba(255,255,255,.88);max-width:560px;margin:0 auto 30px}
.footer{background:#0F1420;color:#9CA7BA;padding:64px 0 0}
.footer a{color:#C6CFDF}
.footer a:hover{color:#fff}
.footer h4{color:#fff;margin-bottom:16px;font-size:1rem}
.footer-brand{font-size:1.15rem;font-weight:800;color:#fff;display:inline-flex;align-items:center;gap:10px;margin-bottom:14px}
.footer-brand .brand-mark{width:34px;height:34px;border-radius:9px;font-size:1rem}
.footer-links{list-style:none;margin:0;padding:0;display:flex;flex-direction:column;gap:10px;font-size:.92rem}
.footer-contact li{display:flex;gap:10px;align-items:flex-start;font-size:.92rem;margin-bottom:10px}
.footer-bottom{border-top:1px solid rgba(255,255,255,.1);margin-top:48px;padding:22px 0;font-size:.86rem;display:flex;justify-content:space-between;flex-wrap:wrap;gap:10px;color:#7E89A3}
.breadcrumb{display:flex;flex-wrap:wrap;gap:8px;font-size:.9rem;color:var(--muted);margin-bottom:20px}
.breadcrumb a:hover{color:var(--brand)}
.article-head h1{margin:12px 0 18px}
.article-meta{display:flex;align-items:center;gap:14px;flex-wrap:wrap;color:var(--muted);font-size:.9rem}
.article-content{background:#fff;border-radius:var(--radius);border:1px solid var(--line);padding:42px;margin-top:30px;color:#2A3454;font-size:1.03rem}
.article-content h2,.article-content h3{margin-top:28px;margin-bottom:12px}
.article-content p{margin-bottom:18px}
.article-content img{border-radius:14px;margin:24px 0}
.article-content blockquote{border-left:4px solid var(--brand);padding:14px 20px;background:var(--brand-light);border-radius:8px;margin:20px 0;color:var(--ink)}
.article-content ul,.article-content ol{padding-left:22px;margin-bottom:18px}
.not-found-panel{background:#fff;border-radius:var(--radius);padding:80px 30px;text-align:center;border:1px solid var(--line)}
.not-found-panel h1{font-size:2.2rem;margin-bottom:12px}
.inner-banner{position:relative;padding:90px 0 100px;color:#fff;background-size:cover;background-position:center}
.inner-banner::before{content:"";position:absolute;inset:0;background:linear-gradient(135deg,rgba(43,29,145,.88),rgba(8,14,49,.82))}
.inner-banner .banner-content{position:relative;z-index:1}
.inner-banner h1{color:#fff}
.inner-banner p{color:rgba(255,255,255,.88);max-width:620px;margin:16px 0 0}
.search-box{display:flex;background:#fff;border-radius:999px;padding:6px;box-shadow:var(--shadow-md);max-width:560px;margin:0 auto}
.search-box input{flex:1;border:0;padding:12px 20px;background:transparent;border-radius:999px}
.search-box input:focus{outline:none}
.search-box button{background:var(--brand);border:0;color:#fff;border-radius:999px;padding:0 26px;font-weight:700;cursor:pointer;transition:.2s}
.search-box button:hover{background:var(--brand-dark)}
.help-list{display:flex;flex-direction:column;gap:14px}
.help-item{background:#fff;border:1px solid var(--line);border-radius:var(--radius);padding:22px 24px;display:flex;align-items:flex-start;gap:14px;transition:.2s}
.help-item:hover{border-color:var(--brand);box-shadow:var(--shadow-sm)}
.help-item i{color:var(--brand);font-size:1.2rem;margin-top:3px}
.help-item h3{font-size:1rem;margin:0 0 4px}
.help-item p{color:var(--muted);font-size:.9rem;margin:0}
.contact-form{background:#fff;border-radius:var(--radius);padding:32px;border:1px solid var(--line);box-shadow:var(--shadow-sm)}
.contact-form label{font-weight:700;font-size:.9rem;margin-bottom:6px;display:block}
.contact-form input,.contact-form textarea,.contact-form select{width:100%;border:1px solid var(--line);background:var(--bg);border-radius:10px;padding:12px 14px;margin-bottom:18px;transition:.2s}
.contact-form input:focus,.contact-form textarea:focus,.contact-form select:focus{border-color:var(--brand);background:#fff;outline:none;box-shadow:0 0 0 4px rgba(91,75,218,.1)}
.related-grid .related-card{border-left:3px solid var(--brand);background:#fff;border-radius:12px;padding:20px;box-shadow:var(--shadow-sm)}
.related-grid .related-card h3{font-size:1rem;margin:0 0 6px}
.related-grid .related-card p{color:var(--muted);font-size:.85rem;margin:0}
@media(max-width:1024px){:root{--space:72px}.hero{padding:110px 0 140px}.cta-banner{padding:60px 30px}}
@media(max-width:768px){:root{--space:58px}.nav-toggle{display:block}.site-nav{position:fixed;top:66px;left:16px;right:16px;background:#fff;border-radius:14px;box-shadow:var(--shadow-lg);padding:14px;display:none;flex-direction:column;gap:6px;border:1px solid var(--line)}.site-nav.open{display:flex}.site-nav .nav-link{padding:12px 16px;border-radius:10px}.header-cta{width:100%;margin:6px 0 0}.hero-stats .stats-card{padding:22px 10px}.hero-stats .stat-num{font-size:1.6rem}.article-content{padding:26px 22px}.cta-banner{text-align:left;padding:44px 26px}.cta-banner .hero-actions{justify-content:flex-start}.search-box{flex-direction:column;border-radius:16px}
.search-box input{text-align:center}.search-box button{width:100%;padding:14px}}
@media(max-width:520px){.hero{padding:90px 0 120px}.hero-content h1{font-size:1.8rem}.hero-content p{font-size:1rem}.hero-actions .button{width:100%}.progress-meta{flex-basis:80px}.footer-bottom{flex-direction:column;align-items:center}}

/* roulang page: category1 */
:root {
  --primary: #C8102E;
  --primary-dark: #9C0B23;
  --primary-light: #EF4A5F;
  --accent: #D4A017;
  --accent-light: #F5E6B8;
  --dark: #1B1B2F;
  --dark-soft: #2A2A45;
  --gray-bg: #F7F6F3;
  --gray-light: #EDEBE6;
  --text: #2E2E38;
  --text-light: #6B6B76;
  --white: #FFFFFF;
  --border: #E5E2DC;
  --radius: 18px;
  --radius-sm: 12px;
  --shadow: 0 12px 40px rgba(28, 28, 45, 0.08);
  --shadow-lg: 0 20px 60px rgba(28, 28, 45, 0.12);
  --transition: all 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: "PingFang SC", "Helvetica Neue", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--text);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; height: auto; display: block; }
a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
button, input { font-family: inherit; }
::selection { background: rgba(200, 16, 46, 0.12); color: var(--primary-dark); }

.grid-container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(229, 226, 220, 0.8);
  transition: var(--transition);
}
.site-header.scrolled { box-shadow: 0 4px 24px rgba(28,28,45,0.08); }
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 16px;
}
.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  white-space: nowrap;
}
.brand-logo:hover { color: var(--primary); }
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  border-radius: 12px;
  font-size: 1.3rem;
  font-weight: 800;
  box-shadow: 0 4px 14px rgba(200,16,46,0.3);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}
.site-nav .nav-link {
  font-size: 1rem;
  color: var(--text-light);
  font-weight: 500;
  padding: 6px 2px;
  position: relative;
}
.site-nav .nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: var(--transition);
}
.site-nav .nav-link:hover, .site-nav .nav-link.active { color: var(--primary); }
.site-nav .nav-link:hover::after, .site-nav .nav-link.active::after { width: 100%; }
.header-cta { margin-left: 4px; }
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 12px;
  cursor: pointer;
  padding: 0 10px;
  transition: var(--transition);
}
.nav-toggle:hover { border-color: var(--primary); }
.nav-toggle span {
  display: block;
  height: 2px;
  width: 100%;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Buttons ===== */
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1.4;
}
.button.small { padding: 8px 20px; font-size: 0.85rem; border-radius: 40px; }
.button.primary { background: var(--primary); color: #fff; box-shadow: 0 4px 18px rgba(200,16,46,0.3); }
.button.primary:hover { background: var(--primary-dark); color: #fff; transform: translateY(-2px); box-shadow: 0 6px 26px rgba(200,16,46,0.38); }
.button.outline { background: transparent; color: var(--text); border: 1.5px solid var(--border); }
.button.outline:hover { border-color: var(--primary); color: var(--primary); transform: translateY(-2px); background: rgba(200,16,46,0.04); }
.button.light { background: rgba(255,255,255,0.15); color: #fff; border: 1px solid rgba(255,255,255,0.4); backdrop-filter: blur(4px); }
.button.light:hover { background: rgba(255,255,255,0.28); color: #fff; transform: translateY(-2px); }
.button:focus-visible { outline: 3px solid rgba(200,16,46,0.4); outline-offset: 3px; }

/* ===== Hero Banner ===== */
.category-hero {
  position: relative;
  padding: 140px 0 100px;
  background: linear-gradient(135deg, rgba(27,27,47,0.88), rgba(200,16,46,0.72)), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
  color: #fff;
  overflow: hidden;
}
.category-hero::after {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
  pointer-events: none;
}
.category-hero .hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255,255,255,0.14);
  border: 1px solid rgba(255,255,255,0.25);
  padding: 6px 18px;
  border-radius: 40px;
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.3px;
  backdrop-filter: blur(6px);
  margin-bottom: 20px;
}
.category-hero .hero-badge i { color: var(--accent-light); }
.category-hero h1 {
  font-size: 3rem;
  line-height: 1.25;
  font-weight: 800;
  max-width: 640px;
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}
.category-hero h1 .text-light-red { color: #FFB3B8; }
.category-hero .hero-desc {
  font-size: 1.15rem;
  line-height: 1.9;
  max-width: 620px;
  color: rgba(255,255,255,0.88);
  margin-bottom: 32px;
}
.category-hero .hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.breadcrumb-wrap {
  background: var(--gray-bg);
  border-bottom: 1px solid var(--border);
  padding: 14px 0;
  font-size: 0.9rem;
  color: var(--text-light);
}
.breadcrumb-wrap a { color: var(--text-light); }
.breadcrumb-wrap a:hover { color: var(--primary); }
.breadcrumb-wrap i { margin: 0 8px; font-size: 0.7rem; opacity: 0.6; }

/* ===== Section Common ===== */
.section-block { padding: 90px 0; }
.section-block.gray-bg { background: var(--gray-bg); }
.section-block.soft-bg { background: linear-gradient(180deg, var(--white) 0%, var(--gray-bg) 100%); }
.section-head { text-align: center; max-width: 680px; margin: 0 auto 56px; }
.section-head .section-tag {
  display: inline-block;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 1.5px;
  color: var(--primary);
  background: rgba(200,16,46,0.08);
  padding: 6px 16px;
  border-radius: 30px;
  margin-bottom: 14px;
  text-transform: uppercase;
}
.section-head h2 { font-size: 2.2rem; font-weight: 800; color: var(--text); line-height: 1.35; margin-bottom: 14px; letter-spacing: -0.3px; }
.section-head p { font-size: 1.05rem; color: var(--text-light); line-height: 1.8; }
.section-head .divider-line { width: 52px; height: 4px; border-radius: 4px; background: linear-gradient(90deg, var(--primary), var(--accent)); margin: 18px auto 0; }

/* ===== Feature Cards Grid ===== */
.feature-card-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }
.feature-card {
  background: var(--white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transition: var(--transition);
  position: relative;
  display: flex;
  flex-direction: column;
}
.feature-card:hover { transform: translateY(-8px); box-shadow: var(--shadow-lg); border-color: rgba(200,16,46,0.2); }
.feature-card .card-img { position: relative; overflow: hidden; aspect-ratio: 16/10; }
.feature-card .card-img img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.feature-card:hover .card-img img { transform: scale(1.05); }
.feature-card .card-img::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: linear-gradient(180deg, rgba(27,27,47,0) 60%, rgba(27,27,47,0.3) 100%);
}
.feature-card .card-body { padding: 24px; flex: 1; display: flex; flex-direction: column; }
.feature-card .card-tag {
  display: inline-block;
  align-self: flex-start;
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--primary);
  background: rgba(200,16,46,0.08);
  padding: 4px 12px;
  border-radius: 20px;
  margin-bottom: 12px;
}
.feature-card h3 { font-size: 1.2rem; font-weight: 700; color: var(--text); margin-bottom: 10px; line-height: 1.4; }
.feature-card .card-desc { font-size: 0.92rem; line-height: 1.75; color: var(--text-light); flex: 1; }
.feature-card .card-link {
  margin-top: 16px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--primary);
}
.feature-card .card-link i { font-size: 0.75rem; transition: var(--transition); }
.feature-card .card-link:hover i { transform: translateX(4px); }

/* ===== Stats Band ===== */
.stats-band {
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-soft) 100%);
  padding: 55px 0;
  border-radius: var(--radius);
  position: relative;
  overflow: hidden;
}
.stats-band::before {
  content: '';
  position: absolute;
  right: -60px; bottom: -60px;
  width: 240px; height: 240px;
  border-radius: 50%;
  border: 40px solid rgba(255,255,255,0.04);
}
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; text-align: center; }
.stat-item .stat-num { font-size: 2.2rem; font-weight: 800; color: #fff; line-height: 1.2; }
.stat-item .stat-num small { font-size: 1.2rem; color: var(--accent); margin-left: 2px; }
.stat-item .stat-label { font-size: 0.9rem; color: rgba(255,255,255,0.65); margin-top: 6px; }

/* ===== Flow Steps ===== */
.steps-wrap { position: relative; max-width: 920px; margin: 0 auto; }
.steps-list { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; position: relative; z-index: 1; }
.step-item { text-align: center; padding: 28px 16px; background: var(--white); border-radius: var(--radius); border: 1px solid var(--border); box-shadow: var(--shadow); transition: var(--transition); }
.step-item:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px; height: 56px;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: #fff;
  font-size: 1.3rem;
  font-weight: 800;
  box-shadow: 0 6px 18px rgba(200,16,46,0.3);
  margin-bottom: 16px;
}
.step-item h3 { font-size: 1.05rem; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.step-item p { font-size: 0.88rem; color: var(--text-light); line-height: 1.7; }

/* ===== Featured Content List ===== */
.content-list-wrap { max-width: 960px; margin: 0 auto; }
.content-list-item {
  display: flex;
  align-items: center;
  gap: 24px;
  padding: 22px;
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  margin-bottom: 18px;
  transition: var(--transition);
}
.content-list-item:hover { box-shadow: var(--shadow); transform: translateX(6px); border-color: rgba(200,16,46,0.2); }
.content-list-item .item-thumb {
  width: 130px; height: 90px;
  border-radius: var(--radius-sm);
  overflow: hidden;
  flex-shrink: 0;
  background: var(--gray-light);
}
.content-list-item .item-thumb img { width: 100%; height: 100%; object-fit: cover; }
.content-list-item .item-info { flex: 1; }
.content-list-item .item-info .item-meta { display: flex; align-items: center; gap: 14px; font-size: 0.82rem; color: var(--text-light); margin-bottom: 6px; }
.content-list-item .item-info .item-meta .badge-heat { color: var(--primary); font-weight: 600; }
.content-list-item h3 { font-size: 1.12rem; font-weight: 700; color: var(--text); margin-bottom: 6px; line-height: 1.45; }
.content-list-item h3 a { color: var(--text); }
.content-list-item h3 a:hover { color: var(--primary); }
.content-list-item p { font-size: 0.9rem; color: var(--text-light); line-height: 1.7; }
.content-list-item .item-action { flex-shrink: 0; }
.content-list-item .item-action a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px; height: 42px;
  border-radius: 50%;
  background: var(--gray-bg);
  color: var(--text);
  border: 1px solid var(--border);
  transition: var(--transition);
}
.content-list-item .item-action a:hover { background: var(--primary); color: #fff; border-color: var(--primary); transform: scale(1.1); }

/* ===== Tips Grid ===== */
.tips-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.tips-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 28px;
  display: flex;
  gap: 18px;
  transition: var(--transition);
}
.tips-card:hover { box-shadow: var(--shadow); border-color: rgba(200,16,46,0.25); transform: translateY(-4px); }
.tips-card .tips-icon {
  flex-shrink: 0;
  width: 52px; height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(212,160,23,0.15), rgba(200,16,46,0.1));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.25rem;
}
.tips-card h3 { font-size: 1.05rem; font-weight: 700; color: var(--text); margin-bottom: 8px; }
.tips-card p { font-size: 0.9rem; color: var(--text-light); line-height: 1.75; }

/* ===== FAQ ===== */
.faq-wrap { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item:hover { border-color: rgba(200,16,46,0.25); box-shadow: var(--shadow); }
.faq-item summary {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 24px;
  cursor: pointer;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  list-style: none;
  transition: var(--transition);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: '\f078';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 0.8rem;
  color: var(--text-light);
  transition: var(--transition);
  flex-shrink: 0;
}
.faq-item[open] summary::after { transform: rotate(180deg); color: var(--primary); }
.faq-item[open] summary { color: var(--primary); }
.faq-item .faq-body { padding: 0 24px 20px; font-size: 0.93rem; color: var(--text-light); line-height: 1.85; border-top: 1px dashed var(--border); margin-top: 4px; padding-top: 14px; }

/* ===== CTA Section ===== */
.cta-band {
  border-radius: var(--radius);
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
  padding: 60px 48px;
  position: relative;
  overflow: hidden;
  color: #fff;
  text-align: center;
}
.cta-band::before {
  content: '';
  position: absolute;
  left: -60px; top: -60px;
  width: 200px; height: 200px;
  border-radius: 50%;
  background: rgba(255,255,255,0.08);
}
.cta-band::after {
  content: '';
  position: absolute;
  right: -30px; bottom: -80px;
  width: 260px; height: 260px;
  border-radius: 50%;
  border: 46px solid rgba(255,255,255,0.07);
}
.cta-band h2 { font-size: 2rem; font-weight: 800; margin-bottom: 14px; position: relative; z-index: 1; }
.cta-band p { font-size: 1.05rem; opacity: 0.9; max-width: 560px; margin: 0 auto 28px; position: relative; z-index: 1; }
.cta-band .cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; position: relative; z-index: 1; }

/* ===== Footer ===== */
.footer {
  background: var(--dark);
  color: rgba(255,255,255,0.75);
  padding: 70px 0 0;
  margin-top: 0;
}
.footer .footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 16px;
}
.footer .brand-mark { background: linear-gradient(135deg, var(--primary), var(--primary-dark)); }
.footer p { font-size: 0.9rem; line-height: 1.8; color: rgba(255,255,255,0.55); max-width: 360px; }
.footer h4 {
  font-size: 1rem;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}
.footer h4::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 3px;
  border-radius: 3px;
  background: var(--primary);
}
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a {
  color: rgba(255,255,255,0.6);
  font-size: 0.9rem;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-links a::before {
  content: '\f105';
  font-family: 'Font Awesome 6 Free';
  font-weight: 900;
  font-size: 0.7rem;
  color: var(--primary-light);
  opacity: 0.7;
  transition: var(--transition);
}
.footer-links a:hover { color: #fff; transform: translateX(4px); }
.footer-links a:hover::before { opacity: 1; }
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  margin-bottom: 12px;
}
.footer-contact i { color: var(--accent); font-size: 0.95rem; width: 18px; text-align: center; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding: 22px 0;
  margin-top: 50px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.85rem;
  color: rgba(255,255,255,0.4);
}
.footer-bottom a { color: rgba(255,255,255,0.5); }
.footer-bottom a:hover { color: #fff; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .feature-card-grid { grid-template-columns: repeat(2, 1fr); }
  .steps-list { grid-template-columns: repeat(2, 1fr); }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 36px; }
  .category-hero h1 { font-size: 2.5rem; }
}

@media (max-width: 768px) {
  .site-header { padding: 0; }
  .header-cta { display: none; }
  .nav-toggle { display: flex; }
  .site-nav {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    border-bottom: 0 solid var(--border);
    transition: max-height 0.4s ease, opacity 0.3s ease, padding 0.3s ease;
    box-shadow: 0 20px 40px rgba(28,28,45,0.1);
  }
  .site-nav.open { max-height: 360px; opacity: 1; padding: 12px 24px 20px; border-bottom-width: 1px; }
  .site-nav .nav-link {
    display: block;
    padding: 14px 0;
    font-size: 1.05rem;
    border-bottom: 1px solid var(--gray-light);
  }
  .site-nav .nav-link::after { display: none; }
  .site-nav .header-cta { display: inline-flex; margin-top: 16px; }
  .section-block { padding: 60px 0; }
  .category-hero { padding: 100px 0 70px; }
  .category-hero h1 { font-size: 2rem; }
  .category-hero .hero-desc { font-size: 1rem; }
  .section-head h2 { font-size: 1.75rem; }
  .content-list-item { flex-wrap: wrap; }
  .content-list-item .item-thumb { width: 100%; height: 180px; }
  .content-list-item .item-action { display: none; }
  .tips-grid { grid-template-columns: 1fr; }
  .cta-band { padding: 48px 24px; }
  .cta-band h2 { font-size: 1.6rem; }
  .footer { padding-top: 50px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}

@media (max-width: 520px) {
  .grid-container { padding-left: 18px; padding-right: 18px; }
  .brand-logo { font-size: 1.05rem; }
  .brand-mark { width: 34px; height: 34px; font-size: 1.05rem; border-radius: 10px; }
  .feature-card-grid { grid-template-columns: 1fr; }
  .steps-list { grid-template-columns: 1fr; }
  .stats-grid { grid-template-columns: 1fr; gap: 26px; }
  .hero-badge { font-size: 0.75rem; padding: 5px 14px; }
  .category-hero h1 { font-size: 1.6rem; }
  .hero-actions .button { width: 100%; justify-content: center; }
  .section-head { margin-bottom: 40px; }
  .section-head h2 { font-size: 1.5rem; }
  .content-list-item { padding: 16px; }
  .content-list-item h3 { font-size: 1rem; }
  .faq-item summary { padding: 16px 18px; font-size: 0.92rem; }
  .faq-item .faq-body { padding: 0 18px 16px; }
  .tips-card { padding: 20px; }
  .stats-band { padding: 40px 20px; }
  .cta-band { padding: 40px 20px; }
  .cta-band .cta-actions .button { width: 100%; }
  .footer-contact li { font-size: 0.82rem; }
}

/* ===== Accessibility ===== */
a:focus-visible, .button:focus-visible, summary:focus-visible { outline: 3px solid rgba(200,16,46,0.35); outline-offset: 3px; }

/* ===== Animations ===== */
@keyframes fadeInUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
.fade-in-up { animation: fadeInUp 0.6s ease both; }
.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

/* roulang page: category2 */
/* ========== 设计变量 ========== */
        :root {
            --brand: #c8102e;
            --brand-dark: #a40d25;
            --brand-soft: #fff1f2;
            --accent: #c8a45c;
            --accent-light: #f5ead2;
            --dark: #1d2029;
            --text: #3d4353;
            --muted: #7b8190;
            --bg-soft: #f7f4ef;
            --card-bg: #ffffff;
            --border: #ebe5dc;
            --radius-lg: 20px;
            --radius-md: 14px;
            --radius-sm: 8px;
            --shadow-sm: 0 2px 12px rgba(30, 32, 40, .06);
            --shadow-md: 0 12px 36px rgba(30, 32, 40, .08);
            --shadow-lg: 0 24px 60px rgba(30, 32, 40, .14);
            --space-section: 96px;
            --transition: all .3s ease;
        }

        /* ========== 基础重置 ========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
            color: var(--text);
            background: var(--bg-soft);
            line-height: 1.7;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5 {
            color: var(--dark);
            line-height: 1.3;
            margin: 0 0 .6em;
            font-weight: 700;
        }

        p {
            margin: 0 0 1em;
        }

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

        /* ========== 通用组件 ========== */
        .section {
            padding: var(--space-section) 0;
        }

        .section-title {
            font-size: 2rem;
            margin-bottom: .4rem;
            letter-spacing: -0.02em;
        }

        .section-subtitle {
            color: var(--muted);
            font-size: 1.05rem;
            max-width: 640px;
            margin-bottom: 2.6rem;
        }

        .centered {
            text-align: center;
        }

        .centered .section-subtitle {
            margin-left: auto;
            margin-right: auto;
        }

        .text-accent {
            color: var(--accent) !important;
        }

        .text-brand {
            color: var(--brand) !important;
        }

        .badge {
            display: inline-block;
            background: var(--brand-soft);
            color: var(--brand);
            font-size: .78rem;
            font-weight: 600;
            padding: .26rem .8rem;
            border-radius: 999px;
            line-height: 1.4;
        }

        .badge--accent {
            background: var(--accent-light);
            color: #9c7a2f;
        }

        .button {
            border-radius: 999px;
            font-weight: 600;
            letter-spacing: .02em;
            transition: var(--transition);
            border: 2px solid transparent;
            cursor: pointer;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: .5rem;
            line-height: 1.2;
        }

        .button.primary {
            background: var(--brand);
            color: #fff;
            border-color: var(--brand);
            padding: .7rem 1.6rem;
            font-size: .92rem;
        }

        .button.primary:hover,
        .button.primary:focus {
            background: var(--brand-dark);
            border-color: var(--brand-dark);
            transform: translateY(-2px);
            box-shadow: 0 10px 24px rgba(200, 16, 46, .25);
        }

        .button.outline {
            background: transparent;
            border-color: #fff;
            color: #fff;
            padding: .7rem 1.6rem;
            font-size: .92rem;
        }

        .button.outline:hover,
        .button.outline:focus {
            background: rgba(255, 255, 255, .12);
            transform: translateY(-2px);
        }

        .button.small {
            padding: .5rem 1.3rem;
            font-size: .88rem;
        }

        .card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
        }

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

        /* ========== 顶部导航 ========== */
        .site-header {
            position: sticky;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(255, 255, 255, .92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid rgba(235, 229, 220, .8);
            box-shadow: 0 2px 16px rgba(30, 32, 40, .04);
        }

        .site-header .grid-container {
            max-width: 1200px;
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            min-height: 70px;
            gap: 20px;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: .7rem;
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--dark);
            letter-spacing: -0.01em;
            flex-shrink: 0;
        }

        .brand-logo .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--brand), var(--brand-dark));
            color: #fff;
            border-radius: 12px;
            font-weight: 900;
            font-size: 1.1rem;
            box-shadow: 0 6px 16px rgba(200, 16, 46, .3);
        }

        .site-nav {
            display: flex;
            align-items: center;
            gap: 1.4rem;
        }

        .nav-link {
            font-size: .95rem;
            font-weight: 500;
            color: var(--text);
            padding: .5rem .2rem;
            position: relative;
        }

        .nav-link::after {
            content: "";
            position: absolute;
            left: 0;
            bottom: 0;
            width: 100%;
            height: 2px;
            background: var(--brand);
            border-radius: 2px;
            transform: scaleX(0);
            transition: transform .25s ease;
            transform-origin: left center;
        }

        .nav-link:hover {
            color: var(--brand);
        }

        .nav-link:hover::after {
            transform: scaleX(1);
        }

        .nav-link.active {
            color: var(--brand);
            font-weight: 600;
        }

        .nav-link.active::after {
            transform: scaleX(1);
        }

        .header-cta {
            margin-left: .2rem;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            justify-content: center;
            align-items: center;
            width: 44px;
            height: 44px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 10px;
            cursor: pointer;
            gap: 5px;
            padding: 0;
        }

        .nav-toggle span {
            display: block;
            width: 20px;
            height: 2px;
            background: var(--dark);
            border-radius: 2px;
            transition: var(--transition);
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(7px) rotate(45deg);
        }

        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }

        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-7px) rotate(-45deg);
        }

        /* ========== 页面 Banner ========== */
        .page-banner {
            position: relative;
            padding: 120px 0 100px;
            background: linear-gradient(115deg, rgba(18, 20, 28, .88) 0%, rgba(25, 28, 38, .68) 50%, rgba(20, 22, 30, .55) 100%), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            color: #fff;
        }

        .page-banner .breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: .5rem;
            font-size: .88rem;
            color: rgba(255, 255, 255, .8);
            margin-bottom: 1.2rem;
            background: rgba(255, 255, 255, .1);
            border-radius: 999px;
            padding: .35rem 1rem;
            backdrop-filter: blur(6px);
        }

        .page-banner .breadcrumb a {
            color: rgba(255, 255, 255, .85);
        }

        .page-banner .breadcrumb a:hover {
            color: #fff;
        }

        .page-banner h1 {
            color: #fff;
            font-size: 2.6rem;
            margin-bottom: 1rem;
            max-width: 700px;
            letter-spacing: -0.02em;
        }

        .page-banner p {
            color: rgba(255, 255, 255, .85);
            font-size: 1.08rem;
            max-width: 600px;
            line-height: 1.8;
        }

        /* ========== 帮助分类卡片 ========== */
        .help-categories {
            margin-top: -46px;
            position: relative;
            z-index: 2;
        }

        .hc-card {
            text-align: center;
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            box-shadow: var(--shadow-md);
            padding: 2.4rem 1.6rem 2rem;
            height: 100%;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .hc-card::before {
            content: "";
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            height: 4px;
            background: linear-gradient(90deg, var(--brand), var(--accent));
            border-radius: 0 0 8px 8px;
            opacity: 0;
            transition: var(--transition);
        }

        .hc-card:hover {
            transform: translateY(-8px);
            box-shadow: var(--shadow-lg);
        }

        .hc-card:hover::before {
            opacity: 1;
        }

        .hc-icon {
            width: 64px;
            height: 64px;
            border-radius: 18px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--brand);
            background: var(--brand-soft);
            margin-bottom: 1.2rem;
        }

        .hc-card h3 {
            font-size: 1.15rem;
            margin-bottom: .5rem;
        }

        .hc-card p {
            color: var(--muted);
            font-size: .9rem;
            margin-bottom: 1.2rem;
            line-height: 1.7;
        }

        .hc-card .hc-link {
            color: var(--brand);
            font-weight: 600;
            font-size: .9rem;
            display: inline-flex;
            align-items: center;
            gap: .3rem;
        }

        .hc-card .hc-link i {
            transition: transform .2s ease;
        }

        .hc-card .hc-link:hover i {
            transform: translateX(4px);
        }

        /* ========== 热门帮助 ========== */
        .hot-articles {
            background: var(--bg-soft);
            padding: var(--space-section) 0;
        }

        .hot-articles .section-subtitle {
            margin-bottom: 2.2rem;
        }

        .article-card {
            background: var(--card-bg);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            height: 100%;
            display: flex;
            flex-direction: column;
        }

        .article-card:hover {
            box-shadow: var(--shadow-md);
            transform: translateY(-5px);
        }

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

        .article-card .cover img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .5s ease;
        }

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

        .article-card .cover::after {
            content: "";
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(0, 0, 0, .25));
        }

        .article-card .body {
            padding: 1.6rem;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .article-card .meta {
            display: flex;
            align-items: center;
            gap: .8rem;
            margin-bottom: .7rem;
            font-size: .78rem;
            color: var(--muted);
        }

        .article-card h3 {
            font-size: 1.05rem;
            margin-bottom: .6rem;
            line-height: 1.4;
        }

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

        .article-card p {
            color: var(--muted);
            font-size: .9rem;
            line-height: 1.7;
            margin-bottom: 1rem;
            flex: 1;
        }

        .article-card .read-more {
            color: var(--brand);
            font-weight: 600;
            font-size: .88rem;
            display: inline-flex;
            align-items: center;
            gap: .35rem;
        }

        .article-card .read-more i {
            transition: transform .2s ease;
        }

        .article-card .read-more:hover i {
            transform: translateX(4px);
        }

        /* ========== 帮助流程 ========== */
        .help-steps {
            background: var(--dark);
            padding: var(--space-section) 0;
            color: rgba(255, 255, 255, .85);
        }

        .help-steps .section-title,
        .help-steps .section-subtitle {
            color: #fff;
        }

        .help-steps .section-subtitle {
            color: rgba(255, 255, 255, .7);
        }

        .steps-grid {
            margin-top: 2.5rem;
        }

        .step-item {
            position: relative;
            padding: 1.8rem 1.6rem;
            background: rgba(255, 255, 255, .06);
            border: 1px solid rgba(255, 255, 255, .1);
            border-radius: var(--radius-md);
            height: 100%;
            transition: var(--transition);
        }

        .step-item:hover {
            background: rgba(255, 255, 255, .1);
            border-color: rgba(255, 255, 255, .2);
            transform: translateY(-4px);
        }

        .step-num {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--accent);
            line-height: 1;
            margin-bottom: 1rem;
            display: block;
        }

        .step-item h3 {
            color: #fff;
            font-size: 1.1rem;
            margin-bottom: .5rem;
        }

        .step-item p {
            color: rgba(255, 255, 255, .7);
            font-size: .9rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

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

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

        .faq-box .accordion {
            list-style: none;
            margin: 0;
            background: transparent;
            border: none;
            border-radius: 0;
            box-shadow: none;
        }

        .faq-box .accordion-item {
            background: var(--bg-soft);
            border: 1px solid var(--border);
            border-radius: var(--radius-md);
            margin-bottom: 1rem;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-box .accordion-item:hover {
            border-color: rgba(200, 16, 46, .3);
        }

        .faq-box .accordion-item.is-active {
            border-color: rgba(200, 16, 46, .4);
            box-shadow: var(--shadow-sm);
        }

        .faq-box .accordion-title {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 1rem;
            padding: 1.1rem 1.4rem;
            font-size: .98rem;
            font-weight: 600;
            color: var(--dark);
            background: transparent;
            border: none;
            border-radius: 0;
            line-height: 1.5;
            transition: var(--transition);
        }

        .faq-box .accordion-title:hover,
        .faq-box .accordion-item.is-active .accordion-title {
            background: rgba(255, 255, 255, .6);
            color: var(--brand);
        }

        .faq-box .accordion-title::after {
            content: "\f067";
            font-family: "Font Awesome 6 Free";
            font-weight: 900;
            font-size: .8rem;
            color: var(--brand);
            flex-shrink: 0;
            transition: transform .3s ease;
        }

        .faq-box .accordion-item.is-active .accordion-title::after {
            content: "\f068";
            transform: rotate(180deg);
        }

        .faq-box .accordion-content {
            padding: 0 1.4rem 1.3rem;
            background: transparent;
            border: none;
            color: var(--muted);
            font-size: .93rem;
            line-height: 1.85;
        }

        .faq-box .accordion-content p {
            margin-bottom: 0;
        }

        .faq-links {
            margin-top: 2rem;
            text-align: center;
            color: var(--muted);
            font-size: .9rem;
        }

        .faq-links a {
            color: var(--brand);
            font-weight: 600;
        }

        /* ========== CTA ========== */
        .contact-cta {
            padding: var(--space-section) 0;
            background: linear-gradient(120deg, #1d2029, #2c2f3a), url('/assets/images/backpic/back-3.png') center/cover no-repeat;
            background-blend-mode: overlay;
            color: #fff;
        }

        .contact-cta .cta-card {
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: var(--radius-lg);
            padding: 3rem 2.5rem;
            text-align: center;
            backdrop-filter: blur(8px);
            -webkit-backdrop-filter: blur(8px);
        }

        .contact-cta h2 {
            color: #fff;
            font-size: 1.8rem;
            margin-bottom: .8rem;
        }

        .contact-cta p {
            color: rgba(255, 255, 255, .75);
            max-width: 560px;
            margin: 0 auto 2rem;
            line-height: 1.8;
        }

        .cta-actions {
            display: flex;
            justify-content: center;
            gap: 1rem;
            flex-wrap: wrap;
        }

        .cta-note {
            margin-top: 1.4rem;
            font-size: .85rem;
            color: rgba(255, 255, 255, .55);
        }

        /* ========== 页脚 ========== */
        .footer {
            background: #161a22;
            color: rgba(255, 255, 255, .75);
            padding: 70px 0 0;
            font-size: .92rem;
            line-height: 1.8;
        }

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

        .footer .grid-x {
            padding-bottom: 40px;
        }

        .footer-brand {
            display: flex;
            align-items: center;
            gap: .7rem;
            font-size: 1.18rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 1rem;
        }

        .footer-brand .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 34px;
            height: 34px;
            background: linear-gradient(135deg, var(--brand), var(--brand-dark));
            color: #fff;
            border-radius: 10px;
            font-weight: 900;
            font-size: 1rem;
        }

        .footer h4 {
            color: #fff;
            font-size: .95rem;
            font-weight: 700;
            margin-bottom: 1rem;
            letter-spacing: .02em;
        }

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

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

        .footer-links a {
            color: rgba(255, 255, 255, .65);
            transition: var(--transition);
        }

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

        .footer-contact li {
            display: flex;
            align-items: flex-start;
            gap: .5rem;
            color: rgba(255, 255, 255, .65);
        }

        .footer-contact i {
            color: var(--accent);
            margin-top: .2rem;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 20px 0 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 10px;
            font-size: .85rem;
            color: rgba(255, 255, 255, .45);
        }

        .footer-bottom a {
            color: rgba(255, 255, 255, .65);
        }

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

        /* ========== 响应式 ========== */
        @media screen and (max-width: 1024px) {
            :root {
                --space-section: 76px;
            }

            .page-banner {
                padding: 100px 0 84px;
            }

            .page-banner h1 {
                font-size: 2.2rem;
            }
        }

        @media screen and (max-width: 768px) {
            .site-header .header-inner {
                flex-wrap: wrap;
                min-height: 64px;
                padding: 8px 0;
            }

            .nav-toggle {
                display: flex;
            }

            .site-nav {
                flex-direction: column;
                align-items: flex-start;
                width: 100%;
                gap: .4rem;
                padding: .8rem 0 1rem;
                display: none;
            }

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

            .site-nav .nav-link {
                width: 100%;
                padding: .7rem .4rem;
                border-bottom: 1px solid var(--border);
            }

            .site-nav .nav-link::after {
                display: none;
            }

            .site-nav .button {
                margin-top: .6rem;
            }

            .header-cta {
                margin-left: 0;
                width: 100%;
            }

            :root {
                --space-section: 64px;
            }

            .section-title {
                font-size: 1.6rem;
            }

            .page-banner {
                padding: 70px 0 90px;
            }

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

            .page-banner p {
                font-size: .96rem;
            }

            .help-categories {
                margin-top: -30px;
            }

            .hc-card {
                padding: 1.6rem 1.2rem;
            }

            .steps-grid .cell {
                margin-bottom: 1rem;
            }

            .step-item {
                padding: 1.4rem 1.2rem;
            }

            .contact-cta .cta-card {
                padding: 2.2rem 1.4rem;
            }

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

            .cta-actions .button {
                width: 100%;
                max-width: 280px;
            }

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

            .footer .grid-x {
                row-gap: 2rem;
            }
        }

        @media screen and (max-width: 520px) {
            .page-banner h1 {
                font-size: 1.4rem;
            }

            .page-banner .breadcrumb {
                font-size: .78rem;
                padding: .3rem .8rem;
            }

            .brand-logo {
                font-size: 1rem;
            }

            .brand-logo .brand-mark {
                width: 32px;
                height: 32px;
                font-size: .95rem;
            }

            .article-card .body {
                padding: 1.2rem;
            }

            .faq-box .accordion-title {
                font-size: .9rem;
                padding: 1rem 1.1rem;
            }

            .faq-box .accordion-content {
                padding: 0 1.1rem 1.1rem;
                font-size: .88rem;
            }

            .contact-cta h2 {
                font-size: 1.45rem;
            }
        }

        @media (prefers-reduced-motion: reduce) {
            * {
                animation-duration: .01ms !important;
                transition-duration: .01ms !important;
            }
        }

/* roulang page: article */
/* ===== Design Tokens ===== */
:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #dbeafe;
    --accent: #7c3aed;
    --accent-light: #f5f3ff;
    --bg: #f8fafc;
    --surface: #ffffff;
    --text: #0f172a;
    --muted: #64748b;
    --border: #e2e8f0;
    --radius: 18px;
    --radius-sm: 12px;
    --shadow-sm: 0 2px 10px rgba(15, 23, 42, .06);
    --shadow-md: 0 8px 30px rgba(15, 23, 42, .08);
    --shadow-lg: 0 24px 60px rgba(15, 23, 42, .12);
    --transition: .25s ease;
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
    color: var(--text);
    background: var(--bg);
    line-height: 1.7;
    margin: 0;
    -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
    line-height: 1.25;
    color: var(--text);
    margin-top: 0;
    letter-spacing: -.02em;
}

p {
    margin-top: 0;
}

a {
    color: var(--primary);
    text-decoration: none;
    transition: color .2s;
}

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

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

button, input, textarea {
    font-family: inherit;
}

ul, ol {
    margin: 0;
    padding: 0;
    list-style: none;
}

a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 3px solid rgba(37, 99, 235, .45);
    outline-offset: 2px;
}

/* ===== Container ===== */
.grid-container {
    max-width: 1240px;
    padding: 0 1.25rem;
}

/* ===== Buttons ===== */
.button {
    display: inline-block;
    border-radius: 999px;
    font-weight: 600;
    letter-spacing: .01em;
    text-align: center;
    margin-bottom: 0;
    box-shadow: none;
    transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.button:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.button:active {
    transform: translateY(0);
    box-shadow: var(--shadow-sm);
}

.button.primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    border: 1px solid transparent;
}

.button.primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), var(--accent));
    color: #fff;
}

.button.secondary {
    background: var(--primary-light);
    color: var(--primary);
}

.button.secondary:hover {
    background: #bfdbfe;
    color: var(--primary-dark);
}

.button.ghost {
    background: rgba(255, 255, 255, .14);
    border: 1px solid rgba(255, 255, 255, .3);
    color: #fff;
}

.button.ghost:hover {
    background: rgba(255, 255, 255, .24);
    color: #fff;
}

.button.small {
    padding: .45rem 1.1rem;
    font-size: .9rem;
}

.button.expanded {
    width: 100%;
}

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

/* ===== Header / Nav ===== */
.site-header {
    position: sticky;
    top: 0;
    z-index: 999;
    background: rgba(255, 255, 255, .88);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    border-bottom: 1px solid var(--border);
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 72px;
    gap: 1rem;
}

.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--text);
}

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

.brand-mark {
    width: 34px;
    height: 34px;
    border-radius: 10px;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: #fff;
    display: grid;
    place-items: center;
    font-weight: 800;
    box-shadow: 0 6px 16px rgba(37, 99, 235, .3);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: transparent;
    border: 0;
    padding: 10px;
    border-radius: 8px;
    cursor: pointer;
}

.nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text);
    border-radius: 2px;
    transition: .25s;
}

.site-nav {
    display: flex;
    align-items: center;
    gap: .25rem;
}

.nav-link {
    display: inline-block;
    padding: .5rem .95rem;
    border-radius: 999px;
    font-weight: 600;
    color: var(--text);
}

.nav-link:hover,
.nav-link.active {
    background: var(--primary-light);
    color: var(--primary);
}

/* ===== Page Hero ===== */
.page-hero {
    position: relative;
    padding: 92px 0 76px;
    background:
        linear-gradient(120deg, rgba(30, 64, 175, .94), rgba(124, 58, 237, .86)),
        url("/assets/images/backpic/back-2.png") center/cover no-repeat;
    color: #fff;
}

.page-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at 82% 18%, rgba(255, 255, 255, .14), transparent 42%);
    pointer-events: none;
}

.page-hero .grid-container {
    position: relative;
    z-index: 1;
}

.breadcrumb {
    display: flex;
    flex-wrap: wrap;
    gap: .5rem;
    align-items: center;
    font-size: .875rem;
    color: rgba(255, 255, 255, .82);
    margin-bottom: 1.6rem;
}

.breadcrumb a {
    color: rgba(255, 255, 255, .92);
    font-weight: 600;
}

.breadcrumb a:hover {
    color: #fff;
}

.breadcrumb span {
    opacity: .8;
}

.hero-title {
    color: #fff;
    font-size: clamp(1.9rem, 5vw, 3.2rem);
    font-weight: 800;
    max-width: 920px;
    margin-bottom: 1.2rem;
    text-wrap: balance;
}

.hero-desc {
    color: rgba(255, 255, 255, .88);
    font-size: 1.08rem;
    max-width: 740px;
    line-height: 1.8;
    margin-bottom: 1.6rem;
}

.hero-meta {
    display: flex;
    flex-wrap: wrap;
    gap: .8rem;
    align-items: center;
}

.badge {
    display: inline-block;
    padding: .3rem .85rem;
    border-radius: 999px;
    font-size: .82rem;
    font-weight: 700;
}

.badge-primary {
    background: rgba(255, 255, 255, .18);
    color: #fff;
    border: 1px solid rgba(255, 255, 255, .28);
}

.meta-time {
    color: rgba(255, 255, 255, .8);
    font-size: .9rem;
}

/* ===== Article Area ===== */
.article-area {
    padding: 52px 0 20px;
}

.article-card,
.side-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.article-card {
    padding: clamp(1.6rem, 4vw, 2.6rem);
    margin-bottom: 2rem;
}

.article-content {
    color: #334155;
    font-size: 1.05rem;
    line-height: 2;
}

.article-content h2 {
    font-size: 1.6rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
    padding-bottom: .55rem;
    border-bottom: 1px solid var(--border);
}

.article-content h3 {
    font-size: 1.28rem;
    margin-top: 1.6rem;
    margin-bottom: .75rem;
}

.article-content p {
    margin-bottom: 1.2rem;
}

.article-content img {
    border-radius: var(--radius);
    margin: 1.6rem 0;
    box-shadow: var(--shadow-sm);
}

.article-content ul {
    list-style: disc;
    margin: 1rem 0 1.2rem 1.4rem;
}

.article-content ol {
    list-style: decimal;
    margin: 1rem 0 1.2rem 1.4rem;
}

.article-content li {
    margin-bottom: .4rem;
}

.article-content blockquote {
    background: var(--primary-light);
    border-left: 4px solid var(--primary);
    padding: 1rem 1.2rem;
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    margin: 1.5rem 0;
}

.article-content a {
    font-weight: 600;
}

.article-content table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.4rem 0;
}

.article-content th,
.article-content td {
    border: 1px solid var(--border);
    padding: .65rem .8rem;
    text-align: left;
}

.article-content th {
    background: var(--bg);
    font-weight: 700;
}

.article-share {
    display: flex;
    align-items: center;
    gap: .6rem;
    margin-top: 2rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--border);
    color: var(--muted);
    font-size: .9rem;
}

.share-btn {
    display: inline-flex;
    align-items: center;
    gap: .4rem;
    padding: .4rem .85rem;
    border-radius: 999px;
    background: var(--bg);
    color: var(--text);
    font-weight: 600;
    border: 1px solid var(--border);
    cursor: pointer;
    transition: .2s;
}

.share-btn:hover {
    background: var(--primary-light);
    color: var(--primary);
    border-color: transparent;
}

/* ===== Sidebar ===== */
.side-card {
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.side-card img {
    width: 100%;
    height: 170px;
    object-fit: cover;
    border-radius: var(--radius-sm);
    margin-bottom: 1rem;
}

.side-card h3 {
    font-size: 1.18rem;
    margin-bottom: .55rem;
}

.side-card p {
    color: var(--muted);
    font-size: .92rem;
    line-height: 1.7;
    margin-bottom: 1rem;
}

.side-card-highlight {
    background: linear-gradient(135deg, #eff6ff, #f5f3ff);
    border-color: rgba(37, 99, 235, .15);
}

/* ===== Section Head ===== */
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.section-head h2 {
    font-size: clamp(1.5rem, 3vw, 2.15rem);
    font-weight: 800;
    margin-bottom: .35rem;
}

.section-head p {
    color: var(--muted);
    margin: 0;
}

/* ===== Related / Guide Cards ===== */
.related-section,
.faq-section {
    padding: 50px 0 10px;
}

.guide-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-sm);
    transition: all .3s;
    height: 100%;
    display: flex;
    flex-direction: column;
}

.guide-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: transparent;
}

.guide-card img {
    width: 100%;
    height: 170px;
    object-fit: cover;
}

.guide-card-body {
    padding: 1.4rem 1.4rem 1.6rem;
    display: flex;
    flex-direction: column;
    flex: 1;
}

.guide-card-body h3 {
    font-size: 1.15rem;
    margin-bottom: .6rem;
}

.guide-card-body p {
    color: var(--muted);
    font-size: .92rem;
    line-height: 1.7;
    flex: 1;
    margin-bottom: 1rem;
}

.card-link {
    font-weight: 700;
    color: var(--primary);
    display: inline-flex;
    align-items: center;
    gap: .35rem;
}

.card-link i {
    transition: transform .2s;
}

.card-link:hover i {
    transform: translateX(4px);
}

/* ===== FAQ ===== */
.faq-section {
    padding-top: 50px;
    padding-bottom: 30px;
}

.faq-list {
    max-width: 920px;
    margin: 0 auto;
}

.faq-item {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 1.2rem 1.4rem;
    margin-bottom: 1rem;
    box-shadow: var(--shadow-sm);
    transition: .2s;
}

.faq-item:hover {
    border-color: rgba(37, 99, 235, .25);
    box-shadow: var(--shadow-md);
}

.faq-item h3 {
    font-size: 1.05rem;
    margin-bottom: .4rem;
}

.faq-item p {
    color: var(--muted);
    margin: 0;
    line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
    padding: 40px 0 70px;
}

.cta-box {
    position: relative;
    background: linear-gradient(135deg, #1e3a8a, #6d28d9);
    border-radius: 2rem;
    padding: 3rem 2.5rem;
    color: #fff;
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.cta-box::before {
    content: "";
    position: absolute;
    inset: 0;
    background: url("/assets/images/backpic/back-3.png") center/cover no-repeat;
    opacity: .14;
}

.cta-content {
    position: relative;
    z-index: 1;
    text-align: center;
}

.cta-content h2 {
    color: #fff;
    font-size: clamp(1.5rem, 3vw, 2rem);
    margin-bottom: .8rem;
}

.cta-content p {
    color: rgba(255, 255, 255, .85);
    margin-bottom: 1.6rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
}

.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

/* ===== Empty State ===== */
.empty-state {
    padding: 80px 0;
    min-height: 55vh;
}

.empty-box {
    max-width: 540px;
    margin: 0 auto;
    text-align: center;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    padding: 3rem 2rem;
}

.empty-box i {
    font-size: 2.6rem;
    color: var(--primary);
    background: var(--primary-light);
    width: 80px;
    height: 80px;
    display: grid;
    place-items: center;
    border-radius: 42%;
    margin: 0 auto 1.5rem;
}

.empty-box h2 {
    font-size: 1.5rem;
    margin-bottom: .6rem;
}

.empty-box p {
    color: var(--muted);
    margin-bottom: 1.5rem;
}

/* ===== Footer ===== */
.footer {
    background: #0b1220;
    color: #a6b3cf;
    padding: 60px 0 0;
    margin-top: 60px;
}

.footer-brand {
    display: inline-flex;
    align-items: center;
    gap: .6rem;
    font-size: 1.1rem;
    font-weight: 800;
    color: #fff;
    margin-bottom: 1rem;
}

.footer h4 {
    color: #fff;
    font-size: 1rem;
    margin-bottom: 1rem;
}

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

.footer-links a {
    color: #a6b3cf;
    transition: .2s;
}

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

.footer-contact li {
    font-size: .9rem;
    display: flex;
    align-items: center;
    gap: .5rem;
    margin-bottom: .7rem;
}

.footer-contact i {
    color: var(--primary);
    width: 18px;
    text-align: center;
}

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, .08);
    margin-top: 2.5rem;
    padding: 1.5rem 0;
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: .8rem;
    font-size: .85rem;
    color: #8c9baf;
}

.footer-bottom a {
    color: #cbd5e1;
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .page-hero {
        padding: 78px 0 62px;
    }

    .article-card {
        padding: 1.8rem 1.5rem;
    }
}

@media (max-width: 768px) {
    .nav-toggle {
        display: flex;
    }

    .site-nav {
        position: absolute;
        top: 100%;
        left: 1rem;
        right: 1rem;
        display: flex;
        flex-direction: column;
        align-items: stretch;
        background: var(--surface);
        border: 1px solid var(--border);
        border-radius: var(--radius-sm);
        padding: .6rem;
        box-shadow: var(--shadow-lg);
        opacity: 0;
        transform: translateY(12px);
        pointer-events: none;
        transition: .25s;
    }

    .site-nav.open {
        opacity: 1;
        transform: none;
        pointer-events: auto;
    }

    .site-nav a,
    .site-nav .header-cta {
        margin: .25rem 0;
        text-align: center;
    }

    .header-cta {
        margin-left: 0;
    }

    .grid-margin-x > .cell {
        margin-bottom: 1.5rem;
    }

    .page-hero {
        padding: 64px 0 52px;
    }

    .hero-title {
        font-size: 2rem;
    }

    .section-head {
        flex-direction: column;
        align-items: flex-start;
    }

    .article-area {
        padding-top: 36px;
    }

    .cta-box {
        padding: 2.2rem 1.5rem;
        border-radius: 1.4rem;
    }

    .footer {
        padding-top: 44px;
    }
}

@media (max-width: 520px) {
    .brand-logo {
        font-size: .98rem;
    }

    .brand-mark {
        width: 30px;
        height: 30px;
    }

    .page-hero {
        padding: 54px 0 44px;
    }

    .hero-title {
        font-size: 1.65rem;
    }

    .hero-desc {
        font-size: .98rem;
    }

    .article-card {
        padding: 1.3rem 1.1rem;
        border-radius: var(--radius-sm);
    }

    .article-content {
        font-size: 1rem;
    }

    .article-content h2 {
        font-size: 1.35rem;
    }

    .article-content h3 {
        font-size: 1.12rem;
    }

    .cta-actions .button {
        width: 100%;
    }

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