/* roulang page: index */
:root { --primary:#2F7D5B; --primary-light:#4A9A75; --primary-dark:#1F5D42; --accent:#E86A33; --accent-dark:#D45A24; --bg-warm:#F5F3EE; --bg-card:#FFFFFF; --bg-alt:#EDE8DE; --dark:#14211B; --dark-text:#F5F3EE; --text-main:#1E2421; --text-alt:#6B7280; --border:#D8D2C5; --radius-sm:8px; --radius-md:12px; --radius-lg:16px; --shadow-sm:0 2px 8px rgba(0,0,0,.06); --shadow-hover:0 8px 24px rgba(0,0,0,.12); --space:72px; }
*, *::before, *::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body { font-family:"PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif; background:var(--bg-warm); color:var(--text-main); font-size:16px; line-height:1.75; letter-spacing:.01em; -webkit-font-smoothing:antialiased; }
img { max-width:100%; display:block; }
a { color:inherit; text-decoration:none; transition:all .3s ease; }
a:hover { color:var(--primary); }
ul { list-style:none; }
button { font-family:inherit; cursor:pointer; }
.container { max-width:1200px; margin:0 auto; padding:0 20px; }
.section { padding:var(--space) 0; }
.section-head { margin-bottom:36px; text-align:center; }
.section-title { font-size:28px; font-weight:700; color:var(--text-main); line-height:1.3; margin-bottom:8px; }
.section-subtitle { font-size:15px; color:var(--text-alt); }
a:focus-visible, button:focus-visible { outline:2px solid var(--primary); outline-offset:2px; }
.btn { display:inline-flex; align-items:center; justify-content:center; min-height:44px; padding:10px 32px; border-radius:var(--radius-sm); font-size:15px; font-weight:600; border:2px solid transparent; transition:all .3s ease; line-height:1.4; }
.btn-primary { background:var(--accent); color:#fff; }
.btn-primary:hover { background:var(--accent-dark); color:#fff; box-shadow:0 4px 12px rgba(232,106,51,.3); transform:translateY(-2px); }
.btn-primary:active { transform:translateY(0); }
.btn-secondary { background:transparent; border-color:var(--primary); color:var(--primary); }
.btn-secondary:hover { background:var(--primary); color:#fff; }
.btn-ghost { background:transparent; border-color:var(--border); color:var(--text-main); }
.btn-ghost:hover { border-color:var(--primary); color:var(--primary); }
.tag { display:inline-block; padding:2px 12px; border-radius:16px; font-size:12px; font-weight:500; background:rgba(47,125,91,.1); color:var(--primary); }
.tag-gray { background:rgba(107,114,128,.12); color:var(--text-alt); }
.site-header { position:sticky; top:0; z-index:100; background:var(--bg-warm); box-shadow:0 1px 8px rgba(0,0,0,.06); }
.header-inner { display:flex; align-items:center; gap:18px; height:76px; }
.logo { display:flex; align-items:center; gap:12px; flex-shrink:0; }
.logo-badge { width:42px; height:42px; background:var(--primary); border-radius:50%; display:flex; align-items:center; justify-content:center; color:#fff; font-weight:700; font-size:15px; letter-spacing:2px; box-shadow:0 2px 8px rgba(47,125,91,.3); }
.logo-text { display:flex; flex-direction:column; line-height:1.15; }
.logo-name { font-size:20px; font-weight:700; color:var(--text-main); }
.logo-tag { font-size:10px; color:var(--text-alt); letter-spacing:.05em; }
.nav-links { display:flex; align-items:center; gap:28px; margin-left:24px; }
.nav-links a { font-size:15px; font-weight:500; color:var(--text-main); padding:8px 18px; border-radius:20px; transition:all .3s; }
.nav-links a:hover { color:var(--primary); background:rgba(47,125,91,.08); }
.nav-links a.active { background:var(--primary); color:#fff; }
.nav-links a.active:hover { color:#fff; }
.header-actions { display:flex; align-items:center; gap:12px; margin-left:auto; }
.header-cta { display:inline-flex; align-items:center; justify-content:center; min-height:44px; padding:8px 26px; background:var(--accent); color:#fff; border-radius:var(--radius-sm); font-size:15px; font-weight:600; transition:all .3s; border:2px solid transparent; }
.header-cta:hover { background:var(--accent-dark); color:#fff; box-shadow:0 4px 12px rgba(232,106,51,.3); transform:translateY(-2px); }
.menu-toggle { display:none; width:44px; height:44px; background:none; border:none; border-radius:var(--radius-sm); font-size:22px; color:var(--text-main); align-items:center; justify-content:center; }
.menu-toggle:hover { background:rgba(47,125,91,.1); color:var(--primary); }
.hero { background:var(--dark); color:var(--dark-text); padding:64px 0 72px; position:relative; overflow:hidden; }
.hero-bg { position:absolute; top:0; left:0; right:0; bottom:0; background:url('/assets/images/backpic/back-1.png') center/cover no-repeat; opacity:.22; }
.hero-lines { position:absolute; top:0; left:0; right:0; bottom:0; width:100%; height:100%; }
.hero .container { position:relative; z-index:2; }
.hero-grid { display:grid; grid-template-columns:1fr 1fr; gap:48px; align-items:center; }
.hero-media { position:relative; }
.video-card { position:relative; aspect-ratio:4/5; max-height:70vh; border-radius:var(--radius-lg); overflow:hidden; box-shadow:0 12px 32px rgba(0,0,0,.35); }
.video-card img { width:100%; height:100%; object-fit:cover; }
.video-overlay { position:absolute; top:0; right:0; bottom:0; left:0; background:linear-gradient(to top, rgba(20,33,27,.78) 0%, transparent 55%); }
.badge-hot { position:absolute; top:14px; right:14px; background:var(--accent); color:#fff; padding:4px 14px; border-radius:16px; font-size:12px; font-weight:600; }
.play-btn { position:absolute; right:16px; bottom:16px; width:48px; height:48px; border-radius:50%; background:rgba(20,33,27,.72); border:1px solid rgba(255,255,255,.2); color:#fff; font-size:18px; display:flex; align-items:center; justify-content:center; transition:all .3s; }
.play-btn:hover { background:var(--accent); transform:scale(1.08); }
.video-info { position:absolute; left:16px; bottom:18px; color:#fff; z-index:2; }
.video-info .video-title { font-size:16px; font-weight:600; display:block; margin-bottom:2px; }
.video-info .video-stats { font-size:12px; color:#c6cdc9; }
.hero-text { }
.hero-text h1 { font-size:34px; font-weight:700; line-height:1.3; margin-bottom:16px; color:var(--dark-text); }
.hero-text h1 .highlight { color:var(--accent); }
.hero-sub { font-size:16px; color:#A3B0AA; margin-bottom:30px; max-width:440px; }
.hero-actions { display:flex; gap:16px; flex-wrap:wrap; }
.hero-note { margin-top:18px; font-size:13px; color:#7d8f87; }
.hot-videos { background:var(--bg-warm); }
.hot-grid { display:grid; grid-template-columns:1.15fr 1fr 1fr; gap:24px; }
.hot-card { background:var(--bg-card); border-radius:var(--radius-md); overflow:hidden; box-shadow:var(--shadow-sm); transition:all .3s ease; border:1px solid rgba(216,210,197,.5); }
.hot-card:hover { box-shadow:var(--shadow-hover); transform:translateY(-4px); }
.hot-card-img { position:relative; aspect-ratio:16/9; overflow:hidden; }
.hot-card-img img { width:100%; height:100%; object-fit:cover; transition:transform .3s ease; }
.hot-card:hover .hot-card-img img { transform:scale(1.03); }
.hot-card-tag { position:absolute; top:12px; left:12px; background:var(--primary); color:#fff; font-size:12px; padding:3px 12px; border-radius:16px; font-weight:500; }
.hot-card-body { padding:18px 18px 16px; }
.hot-card-body h3 { font-size:16px; font-weight:600; line-height:1.5; margin-bottom:10px; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; color:var(--text-main); }
.hot-card-meta { display:flex; gap:16px; font-size:13px; color:var(--text-alt); margin-bottom:10px; }
.hot-card-meta i { margin-right:4px; color:var(--primary); }
.hot-link { font-size:14px; font-weight:600; color:var(--primary); display:inline-flex; align-items:center; gap:4px; }
.hot-link:hover { color:var(--accent); }
.hot-link:hover i { transform:translateX(4px); }
.hot-link i { transition:transform .3s; }
.checklist-section { background:var(--bg-alt); }
.checklist-inner { max-width:920px; margin:0 auto; }
.check-item { display:flex; align-items:center; gap:20px; padding:24px 0; border-bottom:1px solid rgba(216,210,197,.7); }
.check-item:last-child { border-bottom:0; }
.check-num { font-size:48px; font-weight:700; color:rgba(47,125,91,.28); line-height:1; min-width:72px; }
.check-img { width:120px; height:80px; border-radius:var(--radius-sm); overflow:hidden; flex-shrink:0; }
.check-img img { width:100%; height:100%; object-fit:cover; }
.check-content { flex:1; }
.check-title { font-size:16px; font-weight:600; color:var(--text-main); margin-bottom:4px; }
.check-desc { font-size:14px; color:var(--text-alt); margin-bottom:8px; }
.check-tags { display:flex; gap:8px; }
.check-link { font-size:14px; font-weight:600; color:var(--accent); white-space:nowrap; margin-left:12px; display:inline-flex; align-items:center; gap:4px; }
.check-link:hover { color:var(--accent-dark); }
.check-link:hover i { transform:translateX(4px); }
.check-link i { transition:transform .3s; }
.testimonials { background:var(--bg-warm); }
.testimonial-grid { display:grid; grid-template-columns:repeat(3,1fr); gap:24px; }
.testimonial-card { background:#F0EAE0; border-radius:var(--radius-md); padding:24px; border-bottom:2px solid rgba(47,125,91,.2); }
.testi-user { display:flex; align-items:center; gap:14px; margin-bottom:14px; }
.avatar { width:40px; height:40px; border-radius:50%; background:var(--primary); color:#fff; display:flex; align-items:center; justify-content:center; font-size:16px; border:2px solid var(--primary-light); }
.nickname { font-size:14px; font-weight:600; color:var(--text-main); display:block; }
.stars { font-size:13px; color:var(--accent); }
.stars i.fa-regular { color:#B8B0A5; }
.testi-text { font-size:15px; color:var(--text-main); line-height:1.7; border-left:3px solid var(--primary); padding-left:12px; }
.cta-banner { background:var(--dark); padding:64px 0; text-align:center; position:relative; overflow:hidden; }
.cta-banner .cta-bg { position:absolute; top:0; left:0; width:100%; height:100%; background:url('/assets/images/backpic/back-2.webp') center/cover no-repeat; opacity:.15; }
.cta-banner .container { position:relative; z-index:2; }
.cta-title { font-size:28px; color:#fff; font-weight:700; margin-bottom:8px; line-height:1.3; }
.cta-sub { font-size:15px; color:#A3B0AA; margin-bottom:28px; }
.cta-btn { display:inline-flex; align-items:center; justify-content:center; min-height:48px; padding:10px 40px; background:var(--accent); color:#fff; border-radius:var(--radius-sm); font-size:16px; font-weight:600; transition:all .3s; }
.cta-btn:hover { background:var(--accent-dark); color:#fff; box-shadow:0 6px 16px rgba(232,106,51,.4); transform:translateY(-2px); }
.cta-tip { margin-top:14px; font-size:13px; color:#7d8f87; }
.news-section { background:var(--bg-warm); }
.news-grid { display:grid; grid-template-columns:1fr 1fr; gap:24px; }
.news-card { background:var(--bg-card); border-radius:var(--radius-md); padding:22px; box-shadow:var(--shadow-sm); border:1px solid rgba(216,210,197,.5); transition:all .3s ease; display:flex; flex-direction:column; gap:10px; }
.news-card:hover { box-shadow:var(--shadow-hover); transform:translateY(-3px); }
.news-card-top { display:flex; align-items:center; justify-content:space-between; gap:10px; }
.news-cat { background:var(--primary); color:#fff; font-size:12px; padding:2px 12px; border-radius:16px; font-weight:500; }
.news-card time { font-size:12px; color:var(--text-alt); }
.news-card h3 { font-size:16px; font-weight:600; color:var(--text-main); line-height:1.5; }
.news-card h3 a:hover { color:var(--primary); }
.news-card p { font-size:14px; color:var(--text-alt); line-height:1.6; display:-webkit-box; -webkit-line-clamp:2; -webkit-box-orient:vertical; overflow:hidden; }
.read-more { font-size:14px; font-weight:600; color:var(--primary); display:inline-flex; align-items:center; gap:4px; margin-top:auto; }
.read-more:hover { color:var(--accent); }
.read-more:hover i { transform:translateX(4px); }
.read-more i { transition:transform .3s; }
.news-empty { grid-column:1/-1; border:2px dashed var(--border); border-radius:var(--radius-md); padding:60px 20px; text-align:center; color:var(--text-alt); }
.news-empty i { font-size:40px; display:block; margin-bottom:14px; color:var(--border); }
.faq-section { background:var(--bg-alt); }
.faq-list { max-width:820px; margin:0 auto; background:var(--bg-card); border-radius:var(--radius-md); padding:8px 32px; box-shadow:var(--shadow-sm); }
.accordion-item { border-bottom:1px solid var(--border); }
.accordion-item:last-child { border-bottom:0; }
.accordion-title { font-size:15px; font-weight:700; color:var(--text-main); padding:18px 0; display:flex; align-items:center; justify-content:space-between; gap:12px; }
.accordion-title:hover { color:var(--primary); }
.accordion-title .acc-icon { width:28px; height:28px; border-radius:50%; background:rgba(47,125,91,.1); color:var(--primary); display:inline-flex; align-items:center; justify-content:center; font-size:14px; transition:transform .3s; flex-shrink:0; }
.accordion-item.is-active .acc-icon { transform:rotate(45deg); background:var(--primary); color:#fff; }
.accordion-content { color:var(--text-alt); font-size:14px; line-height:1.8; padding:0 0 18px; }
.site-footer { background:var(--dark); color:#A3B0AA; padding:64px 0 0; }
.footer-grid { display:grid; grid-template-columns:2fr 1fr 1fr 1.5fr; gap:44px; padding-bottom:44px; }
.footer-brand .footer-logo { font-size:20px; font-weight:700; color:#fff; display:flex; align-items:center; gap:10px; margin-bottom:12px; }
.footer-brand .footer-logo .logo-badge { width:36px; height:36px; font-size:13px; }
.footer-brand p { font-size:14px; line-height:1.7; max-width:260px; }
.footer-col h4 { font-size:15px; color:#fff; font-weight:600; margin-bottom:16px; }
.footer-col ul li { margin-bottom:12px; font-size:14px; }
.footer-col ul li a { color:#A3B0AA; transition:color .3s; }
.footer-col ul li a:hover { color:var(--primary-light); }
.footer-col ul li i { width:20px; color:var(--primary-light); margin-right:6px; }
.footer-bottom { border-top:1px solid rgba(255,255,255,.08); padding:18px 0; text-align:center; font-size:13px; color:#7d8f87; }
@media (max-width:1024px) {
  .hero-grid { grid-template-columns:1fr 1fr; gap:32px; }
  .hot-grid { grid-template-columns:1fr 1fr; }
  .hot-card:first-child { grid-column:1/-1; }
  .hot-card:first-child .hot-card-img { aspect-ratio:21/9; }
  .footer-grid { grid-template-columns:1fr 1fr; }
}
@media (max-width:768px) {
  .section { padding:52px 0; }
  .nav-links { display:none; position:absolute; top:76px; left:0; right:0; background:var(--bg-warm); flex-direction:column; align-items:flex-start; padding:20px 24px; border-bottom:1px solid var(--border); box-shadow:0 12px 24px rgba(0,0,0,.08); z-index:99; margin:0; }
  .nav-links.open { display:flex; gap:8px; }
  .nav-links a { width:100%; padding:12px 16px; border-radius:10px; }
  .nav-links a.active { background:var(--primary); color:#fff; }
  .header-cta { padding:8px 18px; font-size:14px; }
  .menu-toggle { display:flex; }
  .hero { padding:40px 0; }
  .hero-grid { grid-template-columns:1fr; gap:28px; }
  .video-card { max-height:55vh; }
  .hero-text h1 { font-size:26px; }
  .hot-grid { grid-template-columns:1fr; }
  .hot-card:first-child { grid-column:auto; }
  .hot-card:first-child .hot-card-img { aspect-ratio:16/9; }
  .testimonial-grid { grid-template-columns:1fr; }
  .check-item { flex-wrap:wrap; }
  .check-num { min-width:48px; font-size:36px; }
  .check-img { width:100px; height:70px; }
  .check-link { margin-left:0; width:100%; justify-content:flex-end; }
  .news-grid { grid-template-columns:1fr; }
  .footer-grid { grid-template-columns:1fr; gap:28px; }
  .faq-list { padding:4px 20px; }
}
@media (max-width:520px) {
  .header-inner { height:68px; }
  .logo-name { font-size:18px; }
  .logo-badge { width:36px; height:36px; font-size:13px; }
  .header-cta { min-height:40px; padding:6px 16px; font-size:13px; }
  .hero-sub { font-size:14px; }
  .check-img { width:84px; height:60px; }
  .section-title { font-size:24px; }
  .cta-title { font-size:24px; }
}

/* roulang page: category1 */
:root {
  --primary: #2F7D5B;
  --primary-light: #3A8F6B;
  --primary-dark: #1F5C42;
  --accent: #E86A33;
  --accent-dark: #D45A24;
  --bg: #F5F3EE;
  --block-bg: #EDE8DE;
  --card-bg: #FFFFFF;
  --dark: #14211B;
  --text: #1E2421;
  --text-secondary: #6B7280;
  --text-dark: #F5F3EE;
  --text-dark-sub: #A3B0AA;
  --border: #D8D2C5;
  --radius-card: 12px;
  --radius-btn: 8px;
  --radius-badge: 16px;
  --shadow: 0 2px 8px rgba(0,0,0,0.06);
  --shadow-hover: 0 8px 24px rgba(0,0,0,0.12);
  --header-h: 76px;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
  scroll-padding-top: 90px;
}
body {
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 15px;
  line-height: 1.8;
  color: var(--text);
  background: var(--bg);
  letter-spacing: 0.01em;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: var(--primary);
  text-decoration: none;
  transition: color .25s ease, background .25s ease, box-shadow .25s ease, transform .25s ease;
}
ul, ol {
  list-style: none;
  margin: 0;
  padding: 0;
}
button {
  font-family: inherit;
  border: none;
  cursor: pointer;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--header-h);
  background: rgba(245, 243, 238, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(216, 210, 197, 0.6);
  transition: box-shadow .3s ease;
}
.site-header.scrolled {
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.08);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: 20px;
}
.logo {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-badge {
  width: 38px;
  height: 38px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 2px 6px rgba(47, 125, 91, 0.35);
}
.logo-text {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.2;
}
.logo-tagline {
  display: block;
  font-size: 10px;
  color: var(--text-secondary);
  letter-spacing: 0.08em;
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
}
.nav-links a {
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
  padding: 8px 16px;
  border-radius: 20px;
}
.nav-links a:hover {
  color: var(--primary);
  background: rgba(47, 125, 91, 0.08);
}
.nav-links a.active {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 2px 8px rgba(47, 125, 91, 0.25);
}
.header-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  height: 44px;
  padding: 0 24px;
  border-radius: var(--radius-btn);
  white-space: nowrap;
}
.header-cta:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(232, 106, 51, 0.35);
}
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  padding: 10px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--text);
  display: block;
  border-radius: 2px;
  transition: transform .3s;
}

/* ===== Category Hero ===== */
.category-hero {
  position: relative;
  padding: 150px 0 100px;
  background: url('/assets/images/backpic/back-1.png') center / cover no-repeat;
}
.category-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(20, 33, 27, 0.92) 0%, rgba(20, 33, 27, 0.78) 45%, rgba(47, 125, 91, 0.45) 100%);
}
.category-hero-inner {
  position: relative;
  z-index: 2;
  max-width: 780px;
  color: var(--text-dark);
}
.category-hero .breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: rgba(245, 243, 238, 0.7);
  margin-bottom: 18px;
}
.category-hero .breadcrumb a {
  color: rgba(245, 243, 238, 0.8);
}
.category-hero .breadcrumb a:hover {
  color: #fff;
}
.category-hero h1 {
  font-size: 38px;
  line-height: 1.3;
  margin-bottom: 16px;
  font-weight: 800;
}
.category-hero .hero-desc {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(245, 243, 238, 0.8);
  max-width: 600px;
}
.hero-buttons {
  display: flex;
  gap: 16px;
  margin-top: 34px;
  flex-wrap: wrap;
}

/* ===== Buttons ===== */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: var(--accent);
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  height: 48px;
  padding: 0 32px;
  border-radius: var(--radius-btn);
  white-space: nowrap;
}
.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(232, 106, 51, 0.35);
}
.btn-primary:active {
  transform: translateY(0);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  background: transparent;
  color: #fff;
  font-weight: 600;
  font-size: 15px;
  height: 48px;
  padding: 0 32px;
  border-radius: var(--radius-btn);
  border: 2px solid rgba(245, 243, 238, 0.75);
  white-space: nowrap;
}
.btn-secondary:hover {
  background: rgba(245, 243, 238, 0.15);
  border-color: #fff;
}

/* ===== Section Common ===== */
.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 50px;
}
.section-head h2 {
  font-size: 30px;
  line-height: 1.3;
  font-weight: 700;
  color: var(--text);
}
.section-head p {
  font-size: 15px;
  color: var(--text-secondary);
  margin-top: 10px;
  line-height: 1.8;
}

/* ===== Process ===== */
.process-section {
  background: var(--bg);
  padding: 88px 0;
}
.process-card {
  background: var(--card-bg);
  border-radius: var(--radius-card);
  padding: 36px 28px;
  text-align: center;
  border: 1px solid rgba(216, 210, 197, 0.4);
  box-shadow: var(--shadow);
  transition: transform .3s, box-shadow .3s;
  height: 100%;
}
.process-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
}
.process-card .num {
  width: 52px;
  height: 52px;
  margin: 0 auto 18px;
  background: var(--primary);
  color: #fff;
  border-radius: 50%;
  font-size: 20px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 12px rgba(47, 125, 91, 0.3);
}
.process-card h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}
.process-card p {
  font-size: 13px;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 0;
}

/* ===== Features ===== */
.features-section {
  background: var(--block-bg);
  padding: 88px 0;
}
.feature-card {
  display: flex;
  gap: 18px;
  height: 100%;
  background: var(--card-bg);
  border-radius: var(--radius-card);
  padding: 30px;
  border: 1px solid rgba(216, 210, 197, 0.4);
  transition: transform .3s, box-shadow .3s;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.feature-icon {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  background: rgba(47, 125, 91, 0.1);
  color: var(--primary);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}
.feature-text h3 {
  font-size: 17px;
  font-weight: 600;
  margin-bottom: 8px;
}
.feature-text p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 0;
}

/* ===== Scene ===== */
.scene-section {
  background: var(--bg);
  padding: 88px 0;
}
.scene-media {
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.scene-media img {
  width: 100%;
  height: 300px;
  object-fit: cover;
}
.scene-content {
  padding: 10px 0;
}
.scene-content h3 {
  font-size: 22px;
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 12px;
}
.scene-content p {
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 0;
}
.scene-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}
.tag {
  background: rgba(47, 125, 91, 0.1);
  color: var(--primary);
  font-size: 12px;
  font-weight: 500;
  padding: 5px 16px;
  border-radius: var(--radius-badge);
}
.grid-padding-x > .cell {
  margin-bottom: 24px;
}
.scene-section .grid-padding-x > .cell {
  margin-bottom: 48px;
}
.scene-section .grid-padding-x > .cell:last-child {
  margin-bottom: 0;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--block-bg);
  padding: 88px 0;
}
.faq-list {
  max-width: 840px;
  margin: 0 auto;
}
.accordion-item {
  border-bottom: 1px solid var(--border);
  transition: border-color .3s;
}
.accordion-item.is-active {
  border-bottom-color: var(--primary);
}
.accordion-title {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  background: none;
  border: none;
  padding: 20px 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  transition: color .25s ease;
}
.accordion-title:hover {
  color: var(--primary);
}
.accordion-item.is-active .accordion-title {
  color: var(--primary);
}
.accordion-title .icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  background: rgba(47, 125, 91, 0.1);
  color: var(--primary);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 16px;
  font-weight: 700;
  line-height: 1;
  transition: transform .35s ease, background .25s;
}
.accordion-item.is-active .icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}
.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}
.accordion-content-inner {
  padding: 0 40px 20px 4px;
  font-size: 14px;
  color: var(--text-secondary);
  line-height: 1.9;
}

/* ===== Related Category ===== */
.related-category {
  background: var(--bg);
  padding: 56px 0;
  text-align: center;
}
.related-category h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 22px;
  color: var(--text);
}
.category-links {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  justify-content: center;
}
.category-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1.5px solid var(--primary);
  color: var(--primary);
  background: transparent;
  font-size: 14px;
  font-weight: 500;
  padding: 10px 26px;
  border-radius: 28px;
  transition: all .25s;
}
.category-chip:hover {
  background: var(--primary);
  color: #fff;
}
.category-chip.active {
  background: var(--primary);
  color: #fff;
}

/* ===== CTA ===== */
.register-cta {
  background: var(--dark);
  padding: 80px 0;
  text-align: center;
}
.register-cta h2 {
  color: var(--text-dark);
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 14px;
}
.register-cta p {
  color: var(--text-dark-sub);
  max-width: 560px;
  margin: 0 auto 32px;
  font-size: 15px;
  line-height: 1.8;
}
.cta-buttons {
  display: flex;
  justify-content: center;
  gap: 16px;
  flex-wrap: wrap;
}
.cta-note {
  margin-top: 18px;
  font-size: 12px;
  color: rgba(163, 176, 170, 0.7);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--dark);
  color: var(--text-dark-sub);
  padding: 60px 0 0;
}
.site-footer .container {
  max-width: 1200px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr 1fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}
.footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 19px;
  font-weight: 700;
}
.footer-logo .logo-badge {
  background: var(--accent);
}
.footer-brand p {
  font-size: 13px;
  line-height: 1.8;
  color: var(--text-dark-sub);
  margin-top: 14px;
  max-width: 260px;
}
.footer-col h4 {
  font-size: 15px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 16px;
}
.footer-col ul li {
  margin-bottom: 10px;
  font-size: 14px;
  line-height: 1.7;
}
.footer-col ul li i {
  margin-right: 8px;
  color: var(--primary-light);
  width: 16px;
}
.footer-col a {
  color: var(--text-dark-sub);
}
.footer-col a:hover {
  color: var(--primary-light);
}
.footer-bottom {
  padding: 22px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(163, 176, 170, 0.6);
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .category-hero h1 {
    font-size: 32px;
  }
  .scene-media img {
    height: 250px;
  }
}

@media (max-width: 768px) {
  .header-inner {
    padding: 0 16px;
  }
  .nav-links {
    position: fixed;
    top: var(--header-h);
    right: 0;
    z-index: -1;
    width: 280px;
    height: calc(100vh - var(--header-h));
    background: var(--bg);
    flex-direction: column;
    align-items: flex-start;
    padding: 32px 28px;
    transform: translateX(100%);
    transition: transform .32s ease;
    box-shadow: -6px 0 24px rgba(0, 0, 0, 0.1);
  }
  .nav-links.open {
    transform: translateX(0);
  }
  .nav-links a {
    width: 100%;
    font-size: 16px;
    padding: 12px 16px;
  }
  .nav-toggle {
    display: flex;
  }
  .category-hero {
    padding: 125px 0 72px;
  }
  .category-hero h1 {
    font-size: 28px;
  }
  .category-hero .hero-desc {
    font-size: 15px;
  }
  .hero-buttons {
    gap: 12px;
  }
  .btn-primary,
  .btn-secondary {
    padding: 0 24px;
    height: 44px;
  }
  .section-head h2 {
    font-size: 25px;
  }
  .scene-media img {
    height: 220px;
  }
  .scene-content {
    padding: 20px 0;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }
}

@media (max-width: 520px) {
  .logo-text {
    font-size: 17px;
  }
  .logo-tagline {
    display: none;
  }
  .logo-badge {
    width: 32px;
    height: 32px;
    font-size: 12px;
  }
  .header-cta {
    padding: 0 14px;
    font-size: 13px;
    height: 38px;
  }
  .process-card {
    padding: 24px 18px;
  }
  .feature-card {
    padding: 22px;
  }
  .register-cta h2 {
    font-size: 23px;
  }
  .accordion-content-inner {
    padding: 0 10px 16px 4px;
  }
}

/* roulang page: article */
:root {
  --primary: #2F7D5B;
  --primary-light: #3A8F6B;
  --primary-soft: rgba(47, 125, 91, 0.1);
  --accent: #E86A33;
  --accent-dark: #D45A24;
  --bg-warm: #F5F3EE;
  --bg-card: #FFFFFF;
  --bg-alt: #EDE8DE;
  --ink: #1E2421;
  --ink-soft: #6B7280;
  --deep: #14211B;
  --deep-text: #A3B0AA;
  --line: #D8D2C5;
  --line-light: rgba(216, 210, 197, 0.6);
  --radius: 12px;
  --radius-btn: 8px;
  --radius-badge: 16px;
  --shadow-card: 0 2px 8px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 8px 24px rgba(0, 0, 0, 0.12);
  --shadow-accent: 0 4px 12px rgba(232, 106, 51, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", -apple-system, sans-serif;
  background: var(--bg-warm);
  color: var(--ink);
  line-height: 1.75;
  font-size: 15px;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--primary);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

ul,
ol {
  margin: 0;
  padding: 0;
}

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

.container,
.grid-container {
  max-width: 1200px;
  margin: 0 auto;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  border-radius: var(--radius-btn);
  font-size: 15px;
  font-weight: 700;
  cursor: pointer;
  border: none;
  transition: all 0.25s ease;
  min-width: 48px;
  gap: 8px;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

.btn-accent {
  background: var(--accent);
  color: #fff;
  box-shadow: 0 2px 8px rgba(232, 106, 51, 0.2);
}

.btn-accent:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}

.btn-accent:active {
  transform: translateY(0);
}

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}

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

/* ===== Header & Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(245, 243, 238, 0.96);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--line-light);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
  gap: 20px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.logo-badge {
  width: 38px;
  height: 38px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 8px rgba(47, 125, 91, 0.3);
  flex-shrink: 0;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1.2;
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
}

.logo-tagline {
  font-size: 10px;
  font-weight: 400;
  color: var(--ink-soft);
  letter-spacing: 0.5px;
  margin-top: 1px;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-links a:not(.btn) {
  font-size: 15px;
  font-weight: 500;
  color: var(--ink);
  padding: 8px 2px;
  position: relative;
  transition: color 0.2s ease;
}

.nav-links a:not(.btn)::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  height: 3px;
  width: 0;
  background: var(--primary);
  border-radius: 2px;
  transition: width 0.28s ease;
}

.nav-links a:not(.btn):hover {
  color: var(--primary);
}

.nav-links a:not(.btn):hover::after {
  width: 100%;
}

.nav-links a.active {
  background: var(--primary);
  color: #fff;
  padding: 8px 18px;
  border-radius: 20px;
}

.nav-links a.active::after {
  display: none;
}

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

.nav-cta {
  height: 40px;
  padding: 0 20px;
  font-size: 14px;
}

.nav-cta-mobile {
  display: none;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 20px;
  color: var(--ink);
  cursor: pointer;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  transition: background 0.2s ease;
}

.nav-toggle:hover {
  background: var(--bg-alt);
}

.nav-toggle:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===== Article Layout ===== */
.site-main.article-page {
  padding-top: 40px;
}

.article-layout {
  align-items: flex-start;
}

.article-main {
  max-width: 820px;
}

.article-sidebar {
  max-width: 360px;
}

/* ===== Breadcrumb ===== */
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--ink-soft);
  margin-bottom: 18px;
  flex-wrap: wrap;
}

.breadcrumb a {
  color: var(--ink-soft);
}

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

.breadcrumb-sep {
  color: #a0a0a0;
}

.breadcrumb .current {
  color: var(--primary);
  font-weight: 500;
}

/* ===== Article Title & Meta ===== */
.article-title {
  font-size: 32px;
  line-height: 1.3;
  font-weight: 800;
  margin: 0 0 14px;
  color: var(--ink);
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--ink-soft);
  font-size: 13px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line-light);
  margin-bottom: 28px;
}

.article-meta span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

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

/* ===== Article Content ===== */
.article-content {
  font-size: 16px;
  line-height: 1.8;
  color: var(--ink);
  letter-spacing: 0.01em;
  max-width: 720px;
}

.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 36px 0 16px;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--line-light);
}

.article-content h3 {
  font-size: 19px;
  font-weight: 700;
  margin: 28px 0 12px;
}

.article-content p {
  margin: 0 0 18px;
}

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

.article-content li {
  margin-bottom: 8px;
}

.article-content a {
  color: var(--primary);
  text-decoration: underline;
  text-underline-offset: 2px;
}

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

.article-content blockquote {
  margin: 24px 0;
  padding: 16px 20px;
  background: var(--primary-soft);
  border-left: 3px solid var(--primary);
  border-radius: 0 8px 8px 0;
  color: var(--ink);
}

.article-content img {
  border-radius: var(--radius);
  margin: 24px auto;
  box-shadow: var(--shadow-card);
  height: auto;
}

.article-content figcaption {
  text-align: center;
  font-size: 13px;
  color: var(--ink-soft);
  margin-top: -16px;
  margin-bottom: 24px;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 24px 0;
  font-size: 14px;
}

.article-content th,
.article-content td {
  border: 1px solid var(--line);
  padding: 10px 14px;
  text-align: left;
}

.article-content th {
  background: var(--bg-alt);
  font-weight: 600;
}

.article-content pre {
  background: var(--deep);
  color: #fff;
  padding: 16px;
  border-radius: 8px;
  overflow: auto;
  font-size: 14px;
  line-height: 1.6;
}

.article-content code {
  background: var(--bg-alt);
  padding: 2px 6px;
  border-radius: 4px;
  font-size: 14px;
}

.article-content pre code {
  background: transparent;
  padding: 0;
}

.article-content iframe,
.article-content video {
  max-width: 100%;
  border-radius: var(--radius);
}

/* ===== Article Tags & Pager ===== */
.article-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 36px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  background: var(--primary-soft);
  color: var(--primary);
  border-radius: var(--radius-badge);
  font-size: 12px;
  font-weight: 500;
}

.post-pager {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  margin-top: 32px;
  padding-top: 20px;
  border-top: 1px solid var(--line-light);
  font-size: 14px;
}

.post-pager a {
  color: var(--ink);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.2s ease;
}

.post-pager a:hover {
  color: var(--accent);
}

.post-pager a i {
  font-size: 12px;
}

/* ===== Sidebar ===== */
.article-sidebar .widget {
  background: var(--bg-card);
  border-radius: var(--radius);
  padding: 24px;
  margin-bottom: 24px;
  box-shadow: var(--shadow-card);
}

.widget-title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary);
  color: var(--ink);
  display: flex;
  align-items: center;
  gap: 8px;
}

.widget-title i {
  color: var(--primary);
}

.side-list {
  list-style: none;
}

.side-list li {
  margin-bottom: 14px;
  padding-bottom: 10px;
  border-bottom: 1px dashed var(--line-light);
}

.side-list li:last-child {
  margin-bottom: 0;
  padding-bottom: 0;
  border-bottom: none;
}

.side-list a {
  color: var(--ink);
  font-size: 14px;
  transition: color 0.2s ease;
}

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

.side-card-list {
  display: grid;
  gap: 14px;
}

.side-card {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 8px;
  border-radius: 8px;
  transition: background 0.2s ease;
}

.side-card:hover {
  background: var(--bg-warm);
}

.side-card img {
  width: 80px;
  height: 60px;
  object-fit: cover;
  border-radius: 8px;
  flex-shrink: 0;
}

.side-card-title {
  font-size: 14px;
  font-weight: 600;
  line-height: 1.4;
  color: var(--ink);
}

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

.side-note {
  background: var(--deep);
  color: var(--deep-text);
}

.side-note .widget-title {
  border-bottom-color: rgba(255, 255, 255, 0.2);
  color: #fff;
}

.side-note .widget-title i {
  color: var(--primary-light);
}

.side-note p {
  font-size: 14px;
  margin: 0;
  line-height: 1.7;
}

.side-note strong {
  color: #fff;
  font-weight: 600;
}

/* ===== Related Section ===== */
.related-section {
  padding: 72px 0 16px;
}

.section-title {
  position: relative;
  padding-left: 16px;
  font-size: 28px;
  font-weight: 800;
  margin-bottom: 32px;
  color: var(--ink);
}

.section-title::before {
  content: " ";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 4px;
  height: 22px;
  background: var(--primary);
  border-radius: 2px;
}

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

.related-card {
  display: block;
  background: var(--bg-card);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
}

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

.related-cover {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--bg-alt);
}

.related-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}

.related-card:hover .related-cover img {
  transform: scale(1.03);
}

.card-tag {
  position: absolute;
  left: 12px;
  top: 12px;
  background: var(--primary);
  color: #fff;
  padding: 4px 12px;
  border-radius: var(--radius-badge);
  font-size: 12px;
  font-weight: 500;
}

.related-body {
  padding: 18px;
}

.related-card h3 {
  font-size: 16px;
  font-weight: 700;
  margin: 0 0 8px;
  line-height: 1.5;
  color: var(--ink);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-card p {
  font-size: 14px;
  color: var(--ink-soft);
  margin: 0 0 12px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.related-link {
  font-size: 14px;
  color: var(--primary);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s ease, color 0.2s ease;
}

.related-link:hover {
  color: var(--accent);
}

.related-card:hover .related-link {
  gap: 8px;
}

/* ===== CTA Block ===== */
.cta-block {
  margin-top: 56px;
  background: linear-gradient(rgba(20, 33, 27, 0.92), rgba(20, 33, 27, 0.92)), url('/assets/images/backpic/back-1.png') center / cover no-repeat;
  padding: 72px 0;
  text-align: center;
  color: #fff;
}

.cta-inner h2 {
  font-size: 28px;
  font-weight: 800;
  margin: 0 0 12px;
  color: #fff;
}

.cta-inner p {
  color: var(--deep-text);
  font-size: 15px;
  margin: 0 0 28px;
}

.cta-inner .btn {
  height: 48px;
  padding: 0 36px;
  font-size: 16px;
}

.cta-note {
  color: var(--deep-text);
  font-size: 13px;
  margin-top: 14px;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 72px 0;
}

.faq-section .section-title {
  text-align: center;
  padding-left: 0;
}

.faq-section .section-title::before {
  display: none;
}

.faq-accordion {
  max-width: 800px;
  margin: 0 auto;
}

.faq-accordion .accordion-item {
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--line);
}

.faq-accordion .accordion-title {
  font-family: inherit;
  font-size: 15px;
  font-weight: 700;
  color: var(--ink);
  padding: 20px 40px 20px 0;
  position: relative;
  background: transparent;
  border: none;
  line-height: 1.5;
  transition: color 0.2s ease;
}

.faq-accordion .accordion-title::before,
.faq-accordion .accordion-title::after {
  content: "";
  position: absolute;
  right: 8px;
  top: 50%;
  width: 14px;
  height: 2px;
  background: var(--primary);
  transition: transform 0.3s ease, background 0.3s ease;
  border-radius: 1px;
}

.faq-accordion .accordion-title::after {
  transform: rotate(90deg);
}

.faq-accordion .accordion-title:hover,
.faq-accordion .accordion-title:focus {
  background: transparent;
  color: var(--primary);
}

.faq-accordion .accordion-item.is-active > .accordion-title {
  color: var(--primary);
}

.faq-accordion .accordion-item.is-active > .accordion-title::after {
  transform: rotate(0deg);
}

.faq-accordion .accordion-content {
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.75;
  padding: 0 40px 20px 0;
}

/* ===== Not Found ===== */
.not-found {
  text-align: center;
  padding: 80px 20px;
  background: var(--bg-card);
  border: 2px dashed var(--line);
  border-radius: var(--radius);
}

.not-found i {
  font-size: 48px;
  color: var(--line);
  margin-bottom: 16px;
}

.not-found p {
  font-size: 16px;
  color: var(--ink-soft);
  margin-bottom: 24px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--deep);
  color: var(--deep-text);
  padding: 64px 0 0;
  margin-top: 56px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-top: 14px;
  max-width: 280px;
}

.footer-col h4 {
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  margin-bottom: 16px;
}

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

.footer-col ul li {
  margin-bottom: 10px;
  font-size: 14px;
  color: var(--deep-text);
}

.footer-col ul li i {
  margin-right: 6px;
  color: var(--primary-light);
}

.footer-col a,
.footer-col li {
  color: var(--deep-text);
  font-size: 14px;
}

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

.footer-bottom {
  display: flex;
  justify-content: space-between;
  padding: 20px 0;
  font-size: 13px;
  color: var(--deep-text);
  flex-wrap: wrap;
  gap: 8px;
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .related-grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .article-main {
    max-width: 100%;
  }

  .article-sidebar {
    max-width: 100%;
  }

  .article-sidebar {
    margin-top: 8px;
  }
}

@media (max-width: 767px) {
  .site-main.article-page {
    padding-top: 24px;
  }

  .header-inner {
    height: 68px;
  }

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

  .nav-links {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    background: var(--bg-warm);
    flex-direction: column;
    align-items: stretch;
    padding: 20px;
    gap: 14px;
    border-bottom: 1px solid var(--line-light);
    box-shadow: 0 12px 24px rgba(0, 0, 0, 0.08);
  }

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

  .nav-links a:not(.btn) {
    padding: 12px 4px;
    font-size: 16px;
    border-bottom: 1px solid var(--line-light);
  }

  .nav-links a:not(.btn)::after {
    display: none;
  }

  .nav-links a.active {
    padding: 12px 18px;
    border-radius: 10px;
    border-bottom: none;
  }

  .nav-cta-desktop {
    display: none;
  }

  .nav-cta-mobile {
    display: inline-flex;
    margin-top: 8px;
    height: 44px;
    justify-content: center;
  }

  .article-title {
    font-size: 26px;
  }

  .article-layout {
    grid-row-gap: 24px;
  }

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

  .post-pager {
    flex-direction: column;
    gap: 12px;
  }

  .cta-block {
    padding: 56px 0;
    margin-top: 40px;
  }

  .cta-inner h2 {
    font-size: 22px;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  .footer-bottom {
    flex-direction: column;
  }

  .faq-section {
    padding: 56px 0;
  }

  .related-section {
    padding: 48px 0 8px;
  }

  .section-title {
    font-size: 24px;
  }
}

@media (max-width: 520px) {
  .container,
  .grid-container {
    padding: 0 16px;
  }

  .btn {
    padding: 0 20px;
  }

  .article-content {
    font-size: 15px;
  }

  .article-content h2 {
    font-size: 21px;
  }

  .article-content h3 {
    font-size: 17px;
  }

  .related-card h3 {
    font-size: 15px;
  }
}