/* roulang page: index */
:root {
  --bg-main: #050A1A;
  --bg-alt: #081226;
  --primary-blue: #1E4FD8;
  --primary-blue-l: #2563EB;
  --accent-cyan: #22D3EE;
  --accent-gold: #C9A96A;
  --text-main: #E8EDF6;
  --text-sub: #94A3B8;
  --text-dim: #5C6B84;
  --border-line: rgba(148, 163, 184, 0.14);
  --glass-bg: rgba(255, 255, 255, 0.04);
  --glass-hover: rgba(255, 255, 255, 0.08);
  --card-radius-lg: 20px;
  --card-radius-sm: 16px;
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.5);
  --font-main: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
  --transition: 0.3s ease-out;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-main);
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.8;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: var(--accent-cyan); text-decoration: none; transition: color var(--transition); }
a:hover { color: var(--primary-blue-l); }
button { font-family: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }
.container-custom { max-width: 1200px; margin: 0 auto; padding: 0 32px; }
.section-pad { padding: 100px 0; }
.section-title { font-size: clamp(1.5rem, 3vw, 2.25rem); font-weight: 800; letter-spacing: -0.01em; color: var(--text-main); margin-bottom: 16px; }
.section-sub { font-size: 1rem; color: var(--text-sub); margin-bottom: 40px; max-width: 640px; }
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--card-radius-sm);
  transition: all var(--transition);
}
.glass-card:hover { background: var(--glass-hover); transform: translateY(-4px); box-shadow: var(--shadow-hover); }

/* ========== 导航栏 ========== */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(5, 10, 26, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-line);
  height: 72px;
}
.nav-wrap { display: flex; align-items: center; justify-content: space-between; height: 72px; }
.logo {
  font-size: 1.35rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  color: var(--text-main);
  display: flex;
  align-items: center;
  gap: 6px;
}
.logo .logo-dot {
  width: 8px; height: 8px;
  border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 12px rgba(34, 211, 238, 0.8);
  display: inline-block;
}
.main-nav { display: flex; align-items: center; gap: 32px; list-style: none; }
.main-nav a {
  font-size: 0.9375rem;
  color: var(--text-sub);
  padding: 8px 0;
  position: relative;
  transition: color var(--transition);
}
.main-nav a:hover { color: var(--accent-cyan); }
.main-nav a.active { color: var(--text-main); }
.main-nav a.active::after {
  content: '';
  position: absolute;
  bottom: -2px; left: 0;
  width: 100%; height: 2px;
  background: var(--accent-cyan);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(34, 211, 238, 0.6);
}
.nav-cta-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 8px 22px;
  border: 1px solid rgba(34, 211, 238, 0.4);
  border-radius: 999px;
  color: var(--accent-cyan);
  font-size: 0.9375rem;
  font-weight: 500;
  transition: all var(--transition);
  background: transparent;
}
.nav-cta-btn:hover { background: rgba(34, 211, 238, 0.08); border-color: var(--accent-cyan); color: var(--color-cyan); }
.nav-mobile-scroll {
  display: none;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
  gap: 24px;
  padding: 0 20px;
}
.nav-mobile-scroll::-webkit-scrollbar { display: none; }
.nav-mobile-scroll a {
  flex: 0 0 auto;
  font-size: 0.875rem;
  color: var(--text-sub);
  padding: 10px 0;
  white-space: nowrap;
}

/* ========== Hero 首屏 ========== */
.hero-section {
  position: relative;
  min-height: 100vh;
  min-height: 640px;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center 30%;
  z-index: 0;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(5, 10, 26, 0.92) 0%, rgba(5, 10, 26, 0.65) 55%, rgba(5, 10, 26, 0.35) 100%);
}
.hero-content { position: relative; z-index: 2; max-width: 760px; padding: 140px 0 120px; }
.hero-badge {
  display: inline-block;
  padding: 6px 18px;
  border: 1px solid rgba(201, 169, 106, 0.4);
  border-radius: 999px;
  font-size: 0.8125rem;
  color: var(--accent-gold);
  letter-spacing: 0.06em;
  margin-bottom: 24px;
  background: rgba(201, 169, 106, 0.06);
}
.hero-title {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text-main);
  margin-bottom: 20px;
  text-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}
.hero-title .highlight { color: var(--accent-cyan); }
.hero-sub {
  font-size: clamp(1.125rem, 2vw, 1.375rem);
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 40px;
  max-width: 560px;
}
.hero-cta { display: flex; gap: 20px; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 36px;
  border: none;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent-cyan), var(--primary-blue-l));
  color: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 0 24px rgba(34, 211, 238, 0.4);
  transition: all var(--transition);
}
.btn-primary:hover { filter: brightness(1.1); box-shadow: 0 0 40px rgba(34, 211, 238, 0.6); transform: translateY(-2px); color: #fff; }
.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 36px;
  border: 1px solid rgba(34, 211, 238, 0.4);
  border-radius: 999px;
  background: transparent;
  color: var(--accent-cyan);
  font-size: 1rem;
  font-weight: 500;
  transition: all var(--transition);
}
.btn-outline:hover { background: rgba(34, 211, 238, 0.08); color: var(--accent-cyan); }
.scroll-hint {
  position: absolute;
  bottom: 0; left: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 12px;
  z-index: 2;
}
.scroll-hint .line { width: 1px; height: 60px; background: linear-gradient(180deg, transparent, var(--accent-cyan)); }
.scroll-hint .label { font-size: 0.75rem; color: var(--text-dim); letter-spacing: 0.2em; }

/* ========== 横滑片库 ========== */
.slider-section { padding: 100px 0 80px; }
.slider-head { display: flex; align-items: center; justify-content: space-between; margin-bottom: 32px; flex-wrap: wrap; gap: 16px; }
.view-all-link { font-size: 0.875rem; color: var(--text-sub); display: inline-flex; align-items: center; gap: 6px; transition: color var(--transition); }
.view-all-link:hover { color: var(--accent-cyan); }
.slider-wrap { display: flex; overflow-x: auto; scroll-snap-type: x mandatory; gap: 20px; padding: 20px 0 28px; scrollbar-width: none; }
.slider-wrap::-webkit-scrollbar { display: none; }
.slider-card { flex: 0 0 300px; scroll-snap-align: start; border-radius: 14px; overflow: hidden; }
.slider-card .card-img-wrap { position: relative; overflow: hidden; border-radius: 14px; aspect-ratio: 16/9; }
.slider-card .card-img-wrap img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.5s ease; }
.slider-card:hover .card-img-wrap img { transform: scale(1.05); }
.slider-card .card-body { padding: 16px 2px 0; }
.card-tag {
  display: inline-block;
  padding: 3px 12px;
  border-radius: 999px;
  font-size: 0.75rem;
  background: rgba(34, 211, 238, 0.1);
  color: var(--accent-cyan);
  border: 1px solid rgba(34, 211, 238, 0.2);
  margin-bottom: 10px;
}
.card-title { font-size: 1.125rem; font-weight: 700; color: var(--text-main); margin-bottom: 6px; line-height: 1.4; }
.card-desc { font-size: 0.875rem; color: var(--text-sub); margin-bottom: 14px; line-height: 1.6; }
.card-link { font-size: 0.875rem; color: var(--accent-cyan); display: inline-flex; align-items: center; gap: 4px; }
.card-link i { font-size: 0.75rem; transition: transform var(--transition); }
.card-link:hover i { transform: translateX(3px); }

/* ========== 热播推荐 ========== */
.featured-section { padding: 80px 0; }
.featured-layout { display: grid; grid-template-columns: 1.4fr 1fr; gap: 32px; }
.featured-main-card {
  position: relative;
  border-radius: var(--card-radius-lg);
  overflow: hidden;
  cursor: pointer;
}
.featured-main-card .img-wrap { position: relative; height: 100%; min-height: 380px; }
.featured-main-card img { width: 100%; height: 100%; object-fit: cover; }
.featured-main-card .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 10, 26, 0) 40%, rgba(5, 10, 26, 0.9) 100%);
}
.featured-main-card .info { position: absolute; bottom: 0; left: 0; right: 0; padding: 32px; z-index: 2; }
.rec-badge {
  display: inline-block;
  padding: 4px 14px;
  background: rgba(201, 169, 106, 0.15);
  border: 1px solid rgba(201, 169, 106, 0.5);
  border-radius: 999px;
  color: var(--accent-gold);
  font-size: 0.75rem;
  margin-bottom: 12px;
}
.featured-main-card h3 { font-size: clamp(1.5rem, 2.5vw, 2rem); font-weight: 800; margin-bottom: 8px; line-height: 1.3; }
.featured-main-card p { font-size: 0.9375rem; color: var(--text-sub); margin-bottom: 0; }
.featured-side { display: flex; flex-direction: column; gap: 16px; }
.featured-side-card {
  display: flex;
  gap: 16px;
  align-items: center;
  background: var(--glass-bg);
  border: 1px solid rgba(255, 255, 255, 0.06);
  border-radius: 12px;
  padding: 12px;
  transition: all var(--transition);
}
.featured-side-card:hover { background: var(--glass-hover); transform: translateX(4px); }
.featured-side-card img { width: 100px; height: 68px; object-fit: cover; border-radius: 8px; flex-shrink: 0; }
.featured-side-card .card-title { font-size: 0.9375rem; margin-bottom: 4px; }
.featured-side-card .card-tag { margin-bottom: 0; padding: 2px 10px; font-size: 0.6875rem; }

/* ========== 片单分区 ========== */
.category-gallery { padding: 80px 0; }
.category-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.category-card {
  position: relative;
  border-radius: var(--card-radius-lg);
  overflow: hidden;
  cursor: pointer;
  min-height: 240px;
  display: block;
}
.category-card img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.category-card:hover img { transform: scale(1.06); }
.category-card .cat-mask { position: absolute; inset: 0; background: linear-gradient(180deg, rgba(5,10,26,0) 30%, rgba(5,10,26,0.85) 100%); }
.category-card .cat-info {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 20px;
  backdrop-filter: blur(8px);
  background: linear-gradient(180deg, transparent, rgba(5, 10, 26, 0.4));
}
.category-card .cat-name { font-size: 1.25rem; font-weight: 700; color: var(--text-main); margin-bottom: 4px; }
.category-card .cat-count { font-size: 0.8125rem; color: var(--text-sub); }

/* ========== 最新信息 ========== */
.latest-news { padding: 80px 0; background: var(--bg-alt); border-top: 1px solid var(--border-line); border-bottom: 1px solid var(--border-line); }
.news-list { display: flex; flex-direction: column; }
.news-item {
  display: flex;
  align-items: center;
  padding: 20px 0;
  border-bottom: 1px solid var(--border-line);
  gap: 24px;
  transition: background var(--transition);
}
.news-item:last-child { border-bottom: none; }
.news-item .news-cat { flex: 0 0 100px; }
.news-item .news-title { flex: 1; font-size: 1rem; font-weight: 600; color: var(--text-main); transition: all var(--transition); }
.news-item .news-title:hover { color: var(--accent-cyan); transform: translateX(4px); }
.news-item .news-date { flex: 0 0 110px; font-size: 0.8125rem; color: var(--accent-gold); }
.news-item .news-arrow { flex: 0 0 32px; font-size: 0.875rem; color: var(--text-dim); }
.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--text-sub);
}
.empty-state i { font-size: 2.5rem; color: var(--text-dim); display: block; margin-bottom: 16px; }
.empty-state .empty-text { font-size: 1rem; }

/* ========== 追剧 CTA ========== */
.cta-section { position: relative; padding: 110px 0 100px; overflow: hidden; }
.cta-bg {
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 70% 50%, rgba(34, 211, 238, 0.18) 0%, rgba(5, 10, 26, 0) 60%), radial-gradient(ellipse at 20% 80%, rgba(37, 99, 235, 0.12) 0%, rgba(5, 10, 26, 0) 50%);
  z-index: 0;
}
.cta-inner { position: relative; z-index: 1; text-align: center; }
.cta-title { font-size: clamp(1.75rem, 3.5vw, 2.5rem); font-weight: 900; margin-bottom: 16px; letter-spacing: -0.01em; }
.cta-sub { font-size: 1.125rem; color: var(--text-sub); max-width: 540px; margin: 0 auto 40px; }

/* ========== 页脚 ========== */
.site-footer { background: var(--bg-alt); border-top: 1px solid var(--border-line); padding-top: 80px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 1fr 1fr 1fr; gap: 48px; padding-bottom: 60px; }
.footer-brand .logo { margin-bottom: 16px; }
.footer-brand .logo-text { font-size: 1.25rem; }
.footer-desc { font-size: 0.875rem; color: var(--text-sub); line-height: 1.7; margin-bottom: 20px; }
.footer-col-title { font-size: 0.875rem; font-weight: 700; color: var(--text-main); margin-bottom: 20px; letter-spacing: 0.04em; }
.footer-links { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-links a { font-size: 0.875rem; color: var(--text-sub); transition: color var(--transition); }
.footer-links a:hover { color: var(--accent-cyan); }
.footer-contact { list-style: none; display: flex; flex-direction: column; gap: 12px; }
.footer-contact li { font-size: 0.875rem; color: var(--text-sub); display: flex; align-items: center; gap: 10px; }
.footer-contact i { color: var(--accent-cyan); width: 16px; text-align: center; }
.copyright-bar { border-top: 1px solid var(--border-line); padding: 20px 0; text-align: center; font-size: 0.75rem; color: var(--text-dim); }
.copyright-bar .site-name { color: var(--text-sub); }

/* ========== 响应式 ========== */
@media screen and (max-width: 1024px) {
  .featured-layout { grid-template-columns: 1fr; }
  .category-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
}
@media screen and (max-width: 768px) {
  .site-header { height: 60px; }
  .nav-wrap { height: 60px; }
  .main-nav { display: none; }
  .nav-mobile-scroll { display: flex; position: fixed; top: 59px; left: 0; right: 0; background: rgba(5, 10, 26, 0.92); backdrop-filter: blur(12px); z-index: 999; border-bottom: 1px solid var(--border-line); }
  .container-custom { padding: 0 20px; }
  .section-pad { padding: 64px 0; }
  .hero-section { min-height: 85vh; }
  .hero-content { padding: 100px 0 80px; }
  .scroll-hint { display: none; }
  .news-item { flex-wrap: wrap; gap: 8px; }
  .news-item .news-cat { flex-basis: auto; }
  .news-item .news-date { flex-basis: auto; margin-left: auto; }
}
@media screen and (max-width: 640px) {
  .hero-cta .btn-primary, .hero-cta .btn-outline { width: 100%; justify-content: center; min-height: 48px; }
  .category-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .section-title { font-size: 1.5rem; }
  .featured-main-card h3 { font-size: 1.375rem; }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: opacity 0.2s ease !important; scroll-behavior: auto; }
}
:focus-visible { outline: 2px solid var(--accent-cyan); outline-offset: 2px; box-shadow: 0 0 0 4px rgba(34, 211, 238, 0.15); }

/* roulang page: article */
:root {
  --bg-main: #050A1A;
  --bg-sub: #081226;
  --bg-glass: rgba(255, 255, 255, 0.04);
  --bg-glass-hover: rgba(255, 255, 255, 0.08);
  --cyan: #22D3EE;
  --blue: #2563EB;
  --blue-deep: #1E4FD8;
  --gold: #C9A96A;
  --text-main: #E8EDF6;
  --text-sub: #94A3B8;
  --text-weak: #5C6B84;
  --border: rgba(148, 163, 184, 0.14);
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.5);
  --container-w: 1200px;
  --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg-main);
  color: var(--text-main);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: var(--cyan);
  text-decoration: none;
  transition: color 0.3s ease;
}

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

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

.container-custom {
  max-width: var(--container-w);
  margin: 0 auto;
  padding-left: 32px;
  padding-right: 32px;
  width: 100%;
}

.container-narrow {
  max-width: 820px;
}

/* ===== 导航栏 ===== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  height: 72px;
  background: rgba(5, 10, 26, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(148, 163, 184, 0.12);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

.logo {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.logo-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan);
  box-shadow: 0 0 12px rgba(34, 211, 238, 0.7);
}

.logo-text {
  font-size: 20px;
  font-weight: 900;
  color: var(--text-main);
  letter-spacing: -0.01em;
  white-space: nowrap;
}

.main-nav {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 32px;
}

.main-nav a {
  position: relative;
  font-size: 15px;
  font-weight: 500;
  color: var(--text-sub);
  padding: 6px 0;
  transition: color 0.3s ease;
}

.main-nav a:hover {
  color: var(--cyan);
}

.main-nav a.active {
  color: var(--text-main);
}

.main-nav a.active::after {
  content: "";
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--cyan);
  box-shadow: 0 0 8px rgba(34, 211, 238, 0.6);
}

.nav-cta {
  font-size: 14px;
  color: var(--cyan);
  border: 1px solid rgba(34, 211, 238, 0.4);
  border-radius: 999px;
  padding: 8px 20px;
  transition: all 0.3s ease;
  white-space: nowrap;
}

.nav-cta:hover {
  background: rgba(34, 211, 238, 0.08);
  border-color: rgba(34, 211, 238, 0.7);
}

/* ===== 面包屑 ===== */
.breadcrumb-wrap {
  padding: 18px 0 0;
}

.breadcrumb {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin: 0;
  padding: 0;
  font-size: 13px;
  color: var(--text-weak);
}

.breadcrumb li {
  display: flex;
  align-items: center;
  gap: 8px;
}

.breadcrumb li::after {
  content: "/";
  color: var(--text-weak);
  opacity: 0.5;
}

.breadcrumb li:last-child::after {
  display: none;
}

.breadcrumb a {
  color: var(--text-sub);
  transition: color 0.3s ease;
}

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

.breadcrumb .current {
  color: var(--text-sub);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  max-width: 280px;
}

/* ===== 文章标题区 ===== */
.article-header {
  position: relative;
  padding: 56px 0 48px;
  background:
    linear-gradient(180deg, rgba(5, 10, 26, 0.72), rgba(5, 10, 26, 0.92)),
    url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  border-bottom: 1px solid var(--border);
}

.article-header .container-custom {
  position: relative;
  z-index: 2;
}

.article-header h1 {
  margin: 14px 0 20px;
  font-size: clamp(1.8rem, 3.5vw, 2.75rem);
  font-weight: 900;
  line-height: 1.25;
  color: var(--text-main);
  letter-spacing: -0.02em;
  max-width: 860px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  font-size: 14px;
  color: var(--text-sub);
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.meta-item i {
  color: var(--gold);
  font-size: 13px;
}

/* ===== 文章正文区 ===== */
.article-wrap {
  padding: 64px 0 40px;
}

.article-content {
  font-size: 17px;
  line-height: 1.85;
  color: var(--text-main);
}

.article-content p {
  margin: 0 0 24px;
}

.article-content h2 {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--text-main);
  margin: 44px 0 20px;
  padding-left: 16px;
  border-left: 4px solid var(--cyan);
  line-height: 1.35;
}

.article-content h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-main);
  margin: 36px 0 16px;
}

.article-content a:not(.btn) {
  color: var(--cyan);
  border-bottom: 1px solid rgba(34, 211, 238, 0.4);
  padding-bottom: 1px;
}

.article-content blockquote {
  margin: 28px -16px;
  padding: 20px 28px;
  background: var(--bg-glass);
  border-left: 3px solid var(--cyan);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  color: var(--text-sub);
  font-size: 15px;
  line-height: 1.8;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.article-content img {
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  margin: 28px 0;
}

.article-content ul,
.article-content ol {
  margin: 0 0 24px;
  padding-left: 24px;
}

.article-content li {
  margin-bottom: 10px;
  color: var(--text-sub);
}

.article-content code {
  background: rgba(34, 211, 238, 0.1);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 14px;
  color: var(--cyan);
}

/* ===== 空态 ===== */
.article-empty {
  text-align: center;
  padding: 80px 24px;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.article-empty i {
  font-size: 48px;
  color: var(--text-weak);
  margin-bottom: 20px;
}

.article-empty p {
  font-size: 18px;
  color: var(--text-sub);
  margin-bottom: 28px;
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border: 1px solid rgba(34, 211, 238, 0.5);
  border-radius: 999px;
  color: var(--cyan);
  font-size: 15px;
  font-weight: 500;
  transition: all 0.3s ease;
}

.btn-ghost:hover {
  background: rgba(34, 211, 238, 0.08);
  box-shadow: 0 0 24px rgba(34, 211, 238, 0.2);
}

/* ===== 相关推荐 ===== */
.related-section {
  padding: 56px 0 24px;
}

.section-head {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 32px;
}

.section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--text-main);
  margin: 0;
  line-height: 1.2;
}

.section-head .section-sub {
  font-size: 14px;
  color: var(--text-weak);
}

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

.related-card {
  display: block;
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--bg-glass);
  border: 1px solid var(--border);
  transition: all 0.3s ease;
}

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

.related-card .card-img {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

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

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

.related-card .card-body {
  padding: 20px 22px 24px;
}

.related-card .card-tag {
  display: inline-block;
  font-size: 12px;
  color: var(--gold);
  border: 1px solid rgba(201, 169, 106, 0.3);
  background: rgba(201, 169, 106, 0.08);
  padding: 3px 12px;
  border-radius: 999px;
  margin-bottom: 12px;
}

.related-card h3 {
  font-size: 17px;
  font-weight: 700;
  line-height: 1.5;
  color: var(--text-main);
  margin: 0 0 8px;
  transition: color 0.3s ease;
}

.related-card:hover h3 {
  color: var(--cyan);
}

.related-card .card-desc {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.6;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* ===== 返回入口 ===== */
.article-footer-nav {
  padding: 32px 0 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  border-top: 1px solid var(--border);
  margin-top: 16px;
}

.back-link {
  color: var(--text-sub);
  font-size: 15px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  transition: color 0.3s ease;
}

.back-link:hover {
  color: var(--cyan);
}

.back-top {
  color: var(--text-weak);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  transition: color 0.3s ease;
}

.back-top:hover {
  color: var(--cyan);
}

/* ===== CTA ===== */
.article-cta {
  position: relative;
  padding: 72px 0;
  background:
    radial-gradient(ellipse at 30% 50%, rgba(34, 211, 238, 0.12), transparent 55%),
    linear-gradient(180deg, var(--bg-main), var(--bg-sub));
}

.cta-inner {
  text-align: center;
}

.cta-inner h2 {
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 800;
  color: var(--text-main);
  margin: 0 0 14px;
}

.cta-inner p {
  font-size: 16px;
  color: var(--text-sub);
  margin: 0 0 32px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 36px;
  background: linear-gradient(135deg, #22D3EE, #2563EB);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border-radius: 999px;
  box-shadow: 0 0 24px rgba(34, 211, 238, 0.4);
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
}

.btn-primary:hover {
  filter: brightness(1.1);
  box-shadow: 0 0 40px rgba(34, 211, 238, 0.6);
  transform: translateY(-2px);
  color: #fff;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--bg-sub);
  border-top: 1px solid var(--border);
  padding: 64px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
}

.footer-brand .logo {
  margin-bottom: 18px;
}

.footer-desc {
  font-size: 14px;
  color: var(--text-sub);
  line-height: 1.8;
  margin: 0;
  max-width: 320px;
}

.footer-col-title {
  font-size: 14px;
  font-weight: 700;
  color: var(--text-main);
  margin: 0 0 22px;
}

.footer-links,
.footer-contact {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.footer-links a,
.footer-contact li {
  font-size: 14px;
  color: var(--text-sub);
  transition: color 0.3s ease;
}

.footer-links a:hover {
  color: var(--cyan);
}

.footer-contact li i {
  color: var(--gold);
  margin-right: 8px;
  font-size: 13px;
}

.copyright-bar {
  border-top: 1px solid rgba(148, 163, 184, 0.1);
  padding: 20px 0;
  text-align: center;
}

.copyright-bar p {
  font-size: 12px;
  color: var(--text-weak);
  margin: 0;
}

.site-name {
  color: var(--text-sub);
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .container-custom {
    padding-left: 28px;
    padding-right: 28px;
  }

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

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

@media (max-width: 768px) {
  .navbar {
    height: auto;
    min-height: 60px;
  }

  .nav-wrap {
    flex-wrap: wrap;
    padding-top: 10px;
    padding-bottom: 10px;
    gap: 8px;
  }

  .main-nav {
    order: 3;
    width: 100%;
    display: flex;
    flex-wrap: nowrap;
    overflow-x: auto;
    gap: 22px;
    padding-bottom: 6px;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
  }

  .main-nav::-webkit-scrollbar {
    display: none;
  }

  .main-nav a {
    white-space: nowrap;
    font-size: 14px;
  }

  .nav-cta {
    order: 2;
    padding: 6px 16px;
    font-size: 13px;
  }

  .breadcrumb .current {
    max-width: 160px;
  }

  .article-header {
    padding: 36px 0 32px;
  }

  .article-wrap {
    padding: 40px 0 24px;
  }

  .article-content {
    font-size: 16px;
    line-height: 1.8;
  }

  .related-grid {
    grid-template-columns: 1fr;
    gap: 18px;
  }

  .article-footer-nav {
    flex-wrap: wrap;
    gap: 12px;
  }

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

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

@media (max-width: 520px) {
  .container-custom {
    padding-left: 20px;
    padding-right: 20px;
  }

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

  .main-nav {
    gap: 18px;
  }

  .breadcrumb-wrap {
    padding-top: 12px;
  }

  .breadcrumb {
    font-size: 12px;
  }

  .article-header h1 {
    font-size: 1.65rem;
  }

  .article-meta {
    gap: 14px;
    font-size: 13px;
  }

  .article-content h2 {
    font-size: 1.3rem;
  }

  .article-content h3 {
    font-size: 1.1rem;
  }

  .section-head {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
    margin-bottom: 24px;
  }

  .btn-primary {
    width: 100%;
    justify-content: center;
  }
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }

  html {
    scroll-behavior: auto;
  }
}

/* roulang page: category1 */
:root {
      --bg-primary: #050A1A;
      --bg-secondary: #081226;
      --accent: #22D3EE;
      --accent-blue: #2563EB;
      --gold: #C9A96A;
      --text-primary: #E8EDF6;
      --text-secondary: #94A3B8;
      --text-muted: #5C6B84;
      --border: rgba(148, 163, 184, 0.14);
      --glass-bg: rgba(255, 255, 255, 0.04);
      --glass-hover: rgba(255, 255, 255, 0.08);
      --radius-lg: 20px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
      --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.5);
      --transition: 0.3s ease-out;
      --container: 1200px;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      background: var(--bg-primary);
      color: var(--text-primary);
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

    a {
      color: inherit;
      text-decoration: none;
    }

    ul {
      list-style: none;
    }

    button {
      font-family: inherit;
      border: none;
      background: none;
      cursor: pointer;
    }

    .container-custom {
      max-width: var(--container);
      margin: 0 auto;
      padding: 0 32px;
    }

    a:focus-visible,
    button:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 3px;
      border-radius: 4px;
    }

    /* ===== Header ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      height: 72px;
      background: rgba(5, 10, 26, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(148, 163, 184, 0.12);
    }

    .header-row {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 100%;
      gap: 24px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 900;
      letter-spacing: 0.01em;
      color: var(--text-primary);
      white-space: nowrap;
    }

    .logo-dot {
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 12px var(--accent);
      flex: 0 0 auto;
    }

    .topbar-nav {
      margin-left: auto;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .main-nav a {
      position: relative;
      font-size: 15px;
      font-weight: 400;
      color: var(--text-secondary);
      padding: 6px 0;
      transition: color var(--transition);
      white-space: nowrap;
    }

    .main-nav a:hover {
      color: var(--accent);
    }

    .main-nav a.active {
      color: var(--text-primary);
    }

    .main-nav a.active::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 100%;
      height: 2px;
      background: var(--accent);
      box-shadow: 0 0 8px var(--accent);
      border-radius: 2px;
    }

    .header-cta {
      font-size: 14px;
      color: var(--accent);
      border: 1px solid rgba(34, 211, 238, 0.4);
      padding: 8px 20px;
      border-radius: 999px;
      transition: all var(--transition);
      white-space: nowrap;
    }

    .header-cta:hover {
      background: rgba(34, 211, 238, 0.08);
      box-shadow: 0 0 16px rgba(34, 211, 238, 0.2);
    }

    /* ===== Category Hero ===== */
    .category-hero {
      position: relative;
      min-height: 300px;
      display: flex;
      align-items: center;
      background-size: cover;
      background-position: center 40%;
      overflow: hidden;
    }

    .category-hero-overlay {
      position: absolute;
      inset: 0;
      background: linear-gradient(120deg, rgba(5, 10, 26, 0.92) 0%, rgba(5, 10, 26, 0.6) 55%, rgba(5, 10, 26, 0.35) 100%);
    }

    .category-hero-content {
      position: relative;
      z-index: 2;
      padding-top: 64px;
      padding-bottom: 64px;
    }

    .hero-eyebrow {
      display: inline-block;
      font-size: 13px;
      letter-spacing: 0.08em;
      color: var(--accent);
      border: 1px solid rgba(34, 211, 238, 0.35);
      padding: 4px 14px;
      border-radius: 999px;
      margin-bottom: 16px;
      background: rgba(34, 211, 238, 0.06);
    }

    .category-hero h1 {
      font-size: clamp(2rem, 4vw, 3rem);
      font-weight: 900;
      line-height: 1.2;
      margin-bottom: 12px;
      letter-spacing: -0.01em;
    }

    .hero-subline {
      font-size: 1rem;
      color: var(--text-secondary);
      max-width: 640px;
    }

    /* ===== Section ===== */
    .section {
      padding: 100px 0;
    }

    .section-head {
      text-align: center;
      max-width: 760px;
      margin: 0 auto 56px;
    }

    .section-head h2 {
      font-size: clamp(1.5rem, 3vw, 2.25rem);
      font-weight: 800;
      line-height: 1.3;
      margin-bottom: 12px;
    }

    .section-head p {
      color: var(--text-secondary);
      font-size: 1rem;
    }

    .section-tag {
      display: inline-block;
      font-size: 13px;
      letter-spacing: 0.08em;
      color: var(--gold);
      border-bottom: 1px solid rgba(201, 169, 106, 0.4);
      padding-bottom: 6px;
      margin-bottom: 16px;
      text-transform: uppercase;
    }

    /* ===== Feature Cards ===== */
    .feature-cell {
      margin-bottom: 24px;
    }

    .feature-card {
      background: var(--glass-bg);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      padding: 36px 28px;
      height: 100%;
      transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
    }

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

    .feature-card i {
      font-size: 28px;
      color: var(--accent);
      margin-bottom: 18px;
      display: block;
    }

    .feature-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .feature-card p {
      font-size: 0.9375rem;
      color: var(--text-secondary);
      line-height: 1.8;
    }

    /* ===== Split Blocks ===== */
    .split-block {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 64px;
      align-items: center;
      margin-bottom: 100px;
    }

    .split-block:last-child {
      margin-bottom: 0;
    }

    .split-block.reversed .split-media {
      order: 2;
    }

    .split-block.reversed .split-content {
      order: 1;
    }

    .split-media img {
      width: 100%;
      border-radius: var(--radius-lg);
      border: 1px solid var(--border);
      box-shadow: var(--shadow);
      object-fit: cover;
      aspect-ratio: 4 / 3;
      transition: transform 0.4s ease-out, box-shadow var(--transition);
    }

    .split-media {
      overflow: hidden;
      border-radius: var(--radius-lg);
    }

    .split-media:hover img {
      transform: scale(1.03);
      box-shadow: var(--shadow-hover);
    }

    .split-content h2 {
      font-size: clamp(1.5rem, 2.5vw, 2rem);
      font-weight: 800;
      line-height: 1.35;
      margin-bottom: 16px;
    }

    .split-content p {
      color: var(--text-secondary);
      margin-bottom: 20px;
    }

    .check-list li {
      position: relative;
      padding-left: 28px;
      margin-bottom: 10px;
      color: var(--text-primary);
      font-size: 0.9375rem;
    }

    .check-list li::before {
      content: "";
      position: absolute;
      left: 0;
      top: 0.55em;
      width: 8px;
      height: 8px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 8px rgba(34, 211, 238, 0.5);
    }

    /* ===== Timeline Process ===== */
    .section-process {
      background: var(--bg-secondary);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .timeline-grid {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .timeline-item {
      position: relative;
      padding: 32px 24px;
      background: rgba(255, 255, 255, 0.03);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      transition: border-color var(--transition), transform var(--transition);
    }

    .timeline-item:hover {
      border-color: rgba(34, 211, 238, 0.4);
      transform: translateY(-3px);
    }

    .timeline-num {
      font-size: 0.875rem;
      font-weight: 700;
      color: var(--accent);
      letter-spacing: 0.06em;
      display: block;
      margin-bottom: 16px;
    }

    .timeline-item h3 {
      font-size: 1.0625rem;
      font-weight: 700;
      margin-bottom: 10px;
    }

    .timeline-item p {
      font-size: 0.875rem;
      color: var(--text-secondary);
      line-height: 1.75;
    }

    /* ===== Stats ===== */
    .stats-row {
      display: grid;
      grid-template-columns: repeat(4, 1fr);
      gap: 24px;
    }

    .stat-item {
      text-align: center;
      padding: 40px 20px;
      background: var(--glass-bg);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      transition: border-color var(--transition), background var(--transition);
    }

    .stat-item:hover {
      border-color: rgba(34, 211, 238, 0.3);
      background: var(--glass-hover);
    }

    .stat-value {
      display: block;
      font-size: 1.75rem;
      font-weight: 900;
      color: var(--accent);
      margin-bottom: 8px;
      line-height: 1.3;
    }

    .stat-label {
      font-size: 0.875rem;
      color: var(--text-secondary);
    }

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

    .faq-item {
      background: var(--glass-bg);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      margin-bottom: 16px;
      overflow: hidden;
      transition: border-color var(--transition);
    }

    .faq-item:hover {
      border-color: rgba(34, 211, 238, 0.3);
    }

    .faq-question {
      width: 100%;
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 20px;
      padding: 20px 28px;
      background: transparent;
      color: var(--text-primary);
      font-size: 1rem;
      font-weight: 600;
      text-align: left;
      line-height: 1.6;
    }

    .faq-icon {
      position: relative;
      flex: 0 0 18px;
      width: 18px;
      height: 18px;
    }

    .faq-icon::before,
    .faq-icon::after {
      content: "";
      position: absolute;
      background: var(--accent);
      border-radius: 2px;
      transition: transform var(--transition), opacity var(--transition);
    }

    .faq-icon::before {
      top: 8px;
      left: 0;
      width: 18px;
      height: 2px;
    }

    .faq-icon::after {
      top: 0;
      left: 8px;
      width: 2px;
      height: 18px;
    }

    .faq-item.active .faq-icon::after {
      transform: rotate(90deg);
      opacity: 0;
    }

    .faq-answer {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.3s ease-out;
    }

    .faq-answer p {
      padding: 0 28px 24px;
      color: var(--text-secondary);
      font-size: 0.9375rem;
      line-height: 1.8;
    }

    /* ===== CTA ===== */
    .cta-box {
      background: var(--bg-secondary);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      text-align: center;
      padding: 72px 40px;
      position: relative;
      overflow: hidden;
    }

    .cta-box::before {
      content: "";
      position: absolute;
      top: 50%;
      left: 50%;
      width: 440px;
      height: 440px;
      transform: translate(-50%, -50%);
      background: radial-gradient(circle, rgba(34, 211, 238, 0.16) 0%, transparent 70%);
      pointer-events: none;
    }

    .cta-box h2 {
      font-size: clamp(1.5rem, 3vw, 2rem);
      font-weight: 800;
      margin-bottom: 12px;
      position: relative;
    }

    .cta-box p {
      color: var(--text-secondary);
      margin-bottom: 32px;
      position: relative;
    }

    .cta-actions {
      display: flex;
      justify-content: center;
      gap: 24px;
      flex-wrap: wrap;
      align-items: center;
      position: relative;
    }

    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 8px;
      font-size: 15px;
      font-weight: 600;
      padding: 14px 32px;
      border-radius: 999px;
      transition: all var(--transition);
      min-height: 44px;
      cursor: pointer;
    }

    .btn-ghost {
      background: transparent;
      border: 1px solid rgba(34, 211, 238, 0.4);
      color: var(--accent);
    }

    .btn-ghost:hover {
      background: rgba(34, 211, 238, 0.08);
      box-shadow: 0 0 16px rgba(34, 211, 238, 0.15);
    }

    .text-link {
      color: var(--accent);
      font-weight: 500;
      text-decoration: underline;
      text-underline-offset: 6px;
      text-decoration-color: rgba(34, 211, 238, 0.4);
      transition: color var(--transition), text-decoration-color var(--transition);
    }

    .text-link:hover {
      color: #67e8f9;
      text-decoration-color: #67e8f9;
    }

    /* ===== Footer ===== */
    .site-footer {
      background: #060D1F;
      border-top: 1px solid var(--border);
      padding: 64px 0 24px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
      gap: 40px;
      margin-bottom: 48px;
    }

    .footer-brand .logo-text {
      font-size: 1.125rem;
    }

    .footer-desc {
      color: var(--text-secondary);
      font-size: 0.875rem;
      margin-top: 16px;
      max-width: 320px;
      line-height: 1.75;
    }

    .footer-col-title {
      font-size: 14px;
      font-weight: 700;
      margin-bottom: 20px;
      color: var(--text-primary);
    }

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

    .footer-links a {
      color: var(--text-secondary);
      font-size: 0.875rem;
      transition: color var(--transition);
    }

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

    .footer-contact li {
      color: var(--text-secondary);
      font-size: 0.875rem;
      display: flex;
      gap: 10px;
      align-items: center;
    }

    .footer-contact i {
      color: var(--accent);
      width: 16px;
      text-align: center;
      font-size: 0.9375rem;
    }

    .copyright-bar {
      border-top: 1px solid rgba(148, 163, 184, 0.1);
      padding-top: 24px;
      text-align: center;
    }

    .copyright-bar p {
      font-size: 0.75rem;
      color: var(--text-muted);
    }

    .site-name {
      color: var(--text-secondary);
    }

    /* ===== Responsive ===== */
    @media (max-width: 1023px) {
      .section {
        padding: 80px 0;
      }

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

      .split-block {
        gap: 40px;
        margin-bottom: 72px;
      }

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

    @media (max-width: 768px) {
      .container-custom {
        padding: 0 20px;
      }

      .site-header {
        height: auto;
      }

      .header-row {
        flex-wrap: wrap;
        padding-top: 10px;
        padding-bottom: 6px;
        gap: 8px;
      }

      .topbar-nav {
        order: 3;
        width: 100%;
        margin-left: 0;
      }

      .main-nav {
        width: 100%;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        gap: 24px;
        padding: 2px 0 8px;
      }

      .main-nav::-webkit-scrollbar {
        display: none;
      }

      .main-nav a {
        font-size: 14px;
        flex: 0 0 auto;
      }

      .header-cta {
        order: 2;
        margin-left: auto;
        font-size: 13px;
        padding: 6px 16px;
      }

      .logo {
        order: 1;
        font-size: 1.125rem;
      }

      .category-hero {
        min-height: 280px;
      }

      .category-hero-content {
        padding-top: 48px;
        padding-bottom: 48px;
      }

      .section {
        padding: 56px 0;
      }

      .section-head {
        margin-bottom: 36px;
      }

      .split-block {
        grid-template-columns: 1fr;
        gap: 24px;
        margin-bottom: 56px;
      }

      .split-block.reversed .split-media {
        order: 1;
      }

      .split-block.reversed .split-content {
        order: 2;
      }

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

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

      .cta-box {
        padding: 48px 24px;
      }

      .cta-actions {
        flex-direction: column;
        gap: 16px;
      }

      .cta-actions .btn,
      .cta-actions .text-link {
        width: 100%;
        text-align: center;
      }

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

    @media (max-width: 480px) {
      .stats-row {
        grid-template-columns: 1fr;
      }

      .feature-card {
        padding: 28px 20px;
      }

      .faq-question {
        padding: 16px 20px;
        font-size: 0.9375rem;
      }

      .faq-answer p {
        padding: 0 20px 20px;
      }

      .timeline-item {
        padding: 24px 20px;
      }

      .stat-item {
        padding: 28px 16px;
      }
    }

    @media (prefers-reduced-motion: reduce) {
      * {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
      }

      html {
        scroll-behavior: auto;
      }
    }

/* roulang page: category2 */
:root {
      --bg-deep: #050A1A;
      --bg-sub: #081226;
      --primary: #2563EB;
      --accent: #22D3EE;
      --gold: #C9A96A;
      --text-main: #E8EDF6;
      --text-sub: #94A3B8;
      --text-dim: #5C6B84;
      --border: rgba(148, 163, 184, 0.14);
      --glass: rgba(255, 255, 255, 0.04);
      --glass-hover: rgba(255, 255, 255, 0.08);
      --radius-lg: 20px;
      --radius-md: 16px;
      --radius-sm: 12px;
      --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
      --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.5);
      --font-sans: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", sans-serif;
      --transition: 0.3s ease-out;
    }

    * {
      box-sizing: border-box;
    }

    html {
      scroll-behavior: smooth;
    }

    body {
      margin: 0;
      background: var(--bg-deep);
      color: var(--text-main);
      font-family: var(--font-sans);
      font-size: 16px;
      line-height: 1.8;
      -webkit-font-smoothing: antialiased;
    }

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

    a {
      color: var(--accent);
      transition: color 0.3s ease;
    }

    a:hover {
      color: #67e8f9;
    }

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

    button {
      font-family: inherit;
      cursor: pointer;
    }

    ::selection {
      background: rgba(34, 211, 238, 0.25);
      color: #fff;
    }

    *:focus-visible {
      outline: 2px solid var(--accent);
      outline-offset: 2px;
    }

    .container-custom {
      max-width: 1200px;
      margin: 0 auto;
      padding: 0 32px;
    }

    .section {
      padding: 100px 0;
    }

    .section-head {
      max-width: 680px;
      margin: 0 auto 48px;
      text-align: center;
    }

    .section-head h2 {
      margin: 0 0 12px;
      font-size: clamp(1.5rem, 3vw, 2.25rem);
      font-weight: 800;
      line-height: 1.3;
      color: var(--text-main);
      letter-spacing: -0.01em;
    }

    .section-head p {
      margin: 0;
      font-size: 16px;
      color: var(--text-sub);
      line-height: 1.8;
    }

    .site-header {
      position: sticky;
      top: 0;
      z-index: 100;
      background: rgba(5, 10, 26, 0.85);
      backdrop-filter: blur(12px);
      -webkit-backdrop-filter: blur(12px);
      border-bottom: 1px solid rgba(148, 163, 184, 0.12);
    }

    .header-inner {
      display: flex;
      align-items: center;
      justify-content: space-between;
      height: 72px;
      gap: 24px;
    }

    .logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      text-decoration: none;
      flex-shrink: 0;
    }

    .logo-dot {
      width: 10px;
      height: 10px;
      border-radius: 50%;
      background: var(--accent);
      box-shadow: 0 0 12px rgba(34, 211, 238, 0.8);
    }

    .logo-text {
      font-size: 20px;
      font-weight: 900;
      letter-spacing: 0.01em;
      color: var(--text-main);
      white-space: nowrap;
    }

    .main-nav {
      display: flex;
      align-items: center;
      gap: 32px;
    }

    .main-nav a {
      display: block;
      position: relative;
      padding-bottom: 6px;
      color: var(--text-sub);
      font-size: 15px;
      text-decoration: none;
      transition: color 0.3s ease;
    }

    .main-nav a:hover {
      color: var(--accent);
    }

    .main-nav a.active {
      color: var(--text-main);
    }

    .main-nav a.active::after {
      content: "";
      position: absolute;
      left: 0;
      bottom: 0;
      width: 100%;
      height: 2px;
      background: var(--accent);
      border-radius: 2px;
      box-shadow: 0 0 8px rgba(34, 211, 238, 0.5);
    }

    .page-hero {
      position: relative;
      display: flex;
      align-items: center;
      min-height: 320px;
      background: linear-gradient(180deg, rgba(5, 10, 26, 0.6), rgba(5, 10, 26, 0.92)), url('/assets/images/backpic/back-2.png') center / cover no-repeat;
      border-bottom: 1px solid var(--border);
    }

    .page-hero .container-custom {
      position: relative;
      z-index: 2;
      padding-top: 56px;
      padding-bottom: 56px;
    }

    .breadcrumb {
      display: flex;
      align-items: center;
      gap: 8px;
      margin-bottom: 16px;
      font-size: 13px;
      color: var(--text-dim);
    }

    .breadcrumb a {
      color: var(--text-sub);
      text-decoration: none;
      transition: color 0.3s ease;
    }

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

    .breadcrumb-sep {
      color: var(--text-dim);
    }

    .breadcrumb .current {
      color: var(--gold);
    }

    .page-hero h1 {
      margin: 0 0 12px;
      font-size: clamp(2rem, 4vw, 3rem);
      font-weight: 900;
      line-height: 1.25;
      letter-spacing: -0.01em;
      color: var(--text-main);
      max-width: 720px;
    }

    .page-hero .hero-desc {
      margin: 0;
      font-size: 17px;
      line-height: 1.8;
      color: var(--text-sub);
      max-width: 600px;
    }

    .picks-section {
      background: var(--bg-deep);
    }

    .filter-bar {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      gap: 12px;
      margin: 0 0 40px;
    }

    .filter-btn {
      min-height: 44px;
      padding: 8px 22px;
      border: 1px solid var(--border);
      border-radius: 999px;
      background: transparent;
      color: var(--text-sub);
      font-size: 14px;
      letter-spacing: 0.02em;
      transition: all 0.3s ease;
    }

    .filter-btn:hover {
      color: var(--accent);
      border-color: rgba(34, 211, 238, 0.4);
    }

    .filter-btn.active {
      color: var(--accent);
      border-color: rgba(34, 211, 238, 0.6);
      background: rgba(34, 211, 238, 0.08);
      box-shadow: 0 0 16px rgba(34, 211, 238, 0.1);
    }

    .pick-grid {
      display: grid;
      grid-template-columns: repeat(2, 1fr);
      gap: 24px;
    }

    .pick-card {
      overflow: hidden;
      background: var(--glass);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      backdrop-filter: blur(20px);
      -webkit-backdrop-filter: blur(20px);
      box-shadow: var(--shadow);
      transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    }

    .pick-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(34, 211, 238, 0.35);
    }

    .pick-cover {
      position: relative;
      aspect-ratio: 16 / 9;
      overflow: hidden;
    }

    .pick-cover::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, rgba(5, 10, 26, 0) 55%, rgba(5, 10, 26, 0.55) 100%);
      pointer-events: none;
    }

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

    .pick-card:hover .pick-cover img {
      transform: scale(1.05);
    }

    .pick-body {
      padding: 20px 22px 24px;
    }

    .badge {
      display: inline-block;
      padding: 4px 12px;
      border: 1px solid rgba(201, 169, 106, 0.35);
      border-radius: 999px;
      background: rgba(201, 169, 106, 0.1);
      color: var(--gold);
      font-size: 12px;
      letter-spacing: 0.04em;
    }

    .pick-title {
      margin: 14px 0 8px;
      font-size: 1.25rem;
      font-weight: 700;
      line-height: 1.4;
      color: var(--text-main);
    }

    .pick-desc {
      margin: 0 0 16px;
      font-size: 0.9375rem;
      line-height: 1.8;
      color: var(--text-sub);
    }

    .link-more {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      padding-bottom: 2px;
      border-bottom: 1px solid transparent;
      color: var(--accent);
      font-size: 14px;
      text-decoration: none;
      transition: border-color 0.3s ease, color 0.3s ease;
    }

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

    .features-section {
      background: var(--bg-sub);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

    .feature-card {
      height: 100%;
      padding: 30px 28px;
      background: var(--glass);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      transition: transform 0.3s ease, border-color 0.3s ease, background 0.3s ease;
    }

    .feature-card:hover {
      transform: translateY(-4px);
      border-color: rgba(34, 211, 238, 0.3);
      background: var(--glass-hover);
    }

    .feature-icon {
      display: flex;
      align-items: center;
      justify-content: center;
      width: 48px;
      height: 48px;
      margin-bottom: 18px;
      border-radius: 12px;
      background: rgba(34, 211, 238, 0.1);
      color: var(--accent);
      font-size: 18px;
    }

    .feature-card h3 {
      margin: 0 0 10px;
      font-size: 1.125rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.4;
    }

    .feature-card p {
      margin: 0;
      font-size: 0.9375rem;
      line-height: 1.8;
      color: var(--text-sub);
    }

    .flow-section {
      background: var(--bg-deep);
    }

    .flow-step {
      position: relative;
      height: 100%;
      padding: 28px 24px;
      background: var(--bg-sub);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      transition: border-color 0.3s ease, transform 0.3s ease;
    }

    .flow-step:hover {
      transform: translateY(-4px);
      border-color: rgba(34, 211, 238, 0.3);
    }

    .flow-number {
      display: inline-block;
      margin-bottom: 16px;
      color: var(--gold);
      font-size: 13px;
      font-weight: 700;
      letter-spacing: 0.06em;
    }

    .flow-step h3 {
      margin: 0 0 10px;
      font-size: 1.0625rem;
      font-weight: 700;
      color: var(--text-main);
    }

    .flow-step p {
      margin: 0;
      font-size: 0.875rem;
      line-height: 1.8;
      color: var(--text-sub);
    }

    .faq-section {
      background: var(--bg-sub);
      border-top: 1px solid var(--border);
      border-bottom: 1px solid var(--border);
    }

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

    .faq-item {
      margin-bottom: 16px;
      overflow: hidden;
      background: var(--glass);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      transition: border-color 0.3s ease, background 0.3s ease;
    }

    .faq-item.active {
      border-color: rgba(34, 211, 238, 0.3);
      background: var(--glass-hover);
    }

    .faq-q {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      padding: 20px 28px;
      cursor: pointer;
      user-select: none;
    }

    .faq-q h3 {
      margin: 0;
      font-size: 16px;
      font-weight: 600;
      line-height: 1.5;
      color: var(--text-main);
    }

    .faq-icon {
      position: relative;
      flex-shrink: 0;
      width: 24px;
      height: 24px;
    }

    .faq-icon::before,
    .faq-icon::after {
      content: "";
      position: absolute;
      top: 50%;
      left: 50%;
      background: var(--accent);
      border-radius: 2px;
      transform: translate(-50%, -50%);
      transition: transform 0.3s ease;
    }

    .faq-icon::before {
      width: 14px;
      height: 2px;
    }

    .faq-icon::after {
      width: 2px;
      height: 14px;
    }

    .faq-item.active .faq-icon::after {
      transform: translate(-50%, -50%) scaleY(0);
    }

    .faq-a {
      max-height: 0;
      overflow: hidden;
      transition: max-height 0.35s ease;
    }

    .faq-a-inner {
      padding: 0 28px 22px;
      font-size: 14px;
      line-height: 1.8;
      color: var(--text-sub);
    }

    .cta-section {
      background: var(--bg-deep);
    }

    .cta-box {
      position: relative;
      padding: 64px 32px;
      overflow: hidden;
      text-align: center;
      background: radial-gradient(circle at 30% 50%, rgba(34, 211, 238, 0.14), transparent 55%), var(--bg-sub);
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
    }

    .cta-box::before {
      content: "";
      position: absolute;
      top: 0;
      left: 15%;
      width: 70%;
      height: 1px;
      background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.6), transparent);
    }

    .cta-box h2 {
      margin: 0 0 12px;
      font-size: clamp(1.5rem, 3vw, 2.125rem);
      font-weight: 800;
      color: var(--text-main);
    }

    .cta-box p {
      max-width: 560px;
      margin: 0 auto 32px;
      font-size: 16px;
      color: var(--text-sub);
      line-height: 1.8;
    }

    .cta-btn {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      min-height: 48px;
      padding: 14px 36px;
      border: 1px solid rgba(34, 211, 238, 0.5);
      border-radius: 999px;
      background: transparent;
      color: var(--accent);
      font-size: 16px;
      font-weight: 600;
      text-decoration: none;
      transition: background 0.3s ease, box-shadow 0.3s ease, transform 0.3s ease;
    }

    .cta-btn:hover {
      background: rgba(34, 211, 238, 0.08);
      box-shadow: 0 0 24px rgba(34, 211, 238, 0.15);
      transform: translateY(-2px);
    }

    .site-footer {
      background: var(--bg-sub);
      border-top: 1px solid var(--border);
      padding-top: 64px;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 2fr 1fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 48px;
    }

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

    .footer-desc {
      max-width: 320px;
      margin: 0;
      font-size: 14px;
      line-height: 1.8;
      color: var(--text-sub);
    }

    .footer-col-title {
      margin: 0 0 16px;
      font-size: 14px;
      font-weight: 700;
      color: var(--text-main);
    }

    .footer-links li a {
      display: inline-block;
      padding: 4px 0;
      font-size: 14px;
      color: var(--text-sub);
      text-decoration: none;
      transition: color 0.3s ease, padding-left 0.3s ease;
    }

    .footer-links li a:hover {
      color: var(--accent);
      padding-left: 4px;
    }

    .footer-contact li {
      display: flex;
      align-items: center;
      gap: 8px;
      padding: 4px 0;
      font-size: 14px;
      color: var(--text-sub);
    }

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

    .copyright-bar {
      padding: 20px 0;
      text-align: center;
      border-top: 1px solid var(--border);
      color: var(--text-dim);
      font-size: 12px;
    }

    .copyright-bar .site-name {
      color: var(--text-sub);
      font-weight: 600;
    }

    @media (max-width: 1024px) {
      .section {
        padding: 80px 0;
      }

      .pick-grid {
        gap: 20px;
      }

      .footer-grid {
        grid-template-columns: 2fr 1fr 1fr;
        gap: 32px;
      }
    }

    @media (max-width: 768px) {
      .section {
        padding: 64px 0;
      }

      .main-nav {
        gap: 20px;
        overflow-x: auto;
        white-space: nowrap;
        scrollbar-width: none;
      }

      .main-nav::-webkit-scrollbar {
        display: none;
      }

      .pick-grid {
        gap: 16px;
      }

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

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

      .filter-btn {
        flex-shrink: 0;
      }

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

    @media (max-width: 640px) {
      .container-custom {
        padding: 0 20px;
      }

      .header-inner {
        height: 60px;
        flex-wrap: wrap;
        flex-direction: column;
        justify-content: center;
        align-items: flex-start;
        gap: 6px;
        padding-top: 8px;
        padding-bottom: 8px;
      }

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

      .main-nav {
        width: 100%;
        gap: 24px;
        padding-bottom: 4px;
      }

      .main-nav a {
        font-size: 14px;
      }

      .page-hero {
        min-height: 280px;
      }

      .page-hero .container-custom {
        padding-top: 40px;
        padding-bottom: 40px;
      }

      .page-hero h1 {
        font-size: 1.75rem;
      }

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

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

      .pick-body {
        padding: 18px 18px 20px;
      }

      .feature-card {
        padding: 24px 20px;
      }

      .flow-step {
        padding: 24px 20px;
      }

      .faq-q {
        padding: 18px 20px;
      }

      .faq-a-inner {
        padding: 0 20px 18px;
      }

      .cta-box {
        padding: 48px 20px;
      }

      .cta-btn {
        width: 100%;
        justify-content: center;
      }

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

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

    @media (prefers-reduced-motion: reduce) {
      *,
      *::before,
      *::after {
        animation-duration: 0.01ms !important;
        transition-duration: 0.01ms !important;
      }
    }

/* roulang page: category3 */
:root {
  --bg-primary: #050A1A;
  --bg-secondary: #081226;
  --primary: #1E4FD8;
  --primary-light: #2563EB;
  --accent: #22D3EE;
  --gold: #C9A96A;
  --text-primary: #E8EDF6;
  --text-secondary: #94A3B8;
  --text-muted: #5C6B84;
  --border: rgba(148, 163, 184, 0.14);
  --glass: rgba(255, 255, 255, 0.04);
  --glass-hover: rgba(255, 255, 255, 0.08);
  --shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-hover: 0 12px 48px rgba(0, 0, 0, 0.5);
  --radius-lg: 20px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --transition: 0.3s ease-out;
  --font-main: "Noto Sans SC", "PingFang SC", "Microsoft YaHei", -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.8;
  font-size: 0.9375rem;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

a {
  color: var(--text-primary);
  text-decoration: none;
  transition: color 0.3s ease-out;
}

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

ul,
ol {
  list-style: none;
}

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

button {
  cursor: pointer;
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  box-shadow: 0 0 0 3px rgba(34, 211, 238, 0.15);
}

.container-custom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 32px;
  width: 100%;
}

.section {
  padding: 100px 0;
  position: relative;
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 56px;
}

.section-tag {
  display: inline-block;
  font-size: 0.8125rem;
  letter-spacing: 0.12em;
  color: var(--accent);
  border: 1px solid rgba(34, 211, 238, 0.3);
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 18px;
  background: rgba(34, 211, 238, 0.05);
  text-transform: uppercase;
}

.section-head h2 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.01em;
  margin-bottom: 16px;
}

.section-head p {
  color: var(--text-secondary);
  font-size: 1rem;
  line-height: 1.8;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 0.9375rem;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: 999px;
  border: 1px solid rgba(34, 211, 238, 0.4);
  color: var(--accent);
  background: transparent;
  transition: all var(--transition);
  cursor: pointer;
  text-align: center;
  min-height: 44px;
}

.btn:hover {
  background: rgba(34, 211, 238, 0.08);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(34, 211, 238, 0.12);
}

.btn-primary {
  background: linear-gradient(135deg, #22D3EE, #2563EB);
  color: #fff;
  border: none;
  box-shadow: 0 0 24px rgba(34, 211, 238, 0.4);
}

.btn-primary:hover {
  filter: brightness(1.1);
  color: #fff;
  box-shadow: 0 0 40px rgba(34, 211, 238, 0.6);
  transform: translateY(-2px);
}

.btn-lg {
  padding: 16px 40px;
  font-size: 1rem;
}

.btn-sm {
  padding: 8px 20px;
  font-size: 0.8125rem;
  min-height: 40px;
}

.btn-ghost-sm {
  font-size: 0.8125rem;
  padding: 8px 18px;
  min-height: 38px;
}

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(5, 10, 26, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

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

.logo-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(34, 211, 238, 0.8);
  position: relative;
}

.logo-text {
  font-size: 1.25rem;
  font-weight: 900;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.main-nav-wrap {
  flex: 1;
  display: flex;
  justify-content: center;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 32px;
}

.main-nav li {
  position: relative;
}

.main-nav a {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 0;
  transition: color var(--transition);
  position: relative;
}

.main-nav a:hover {
  color: var(--accent);
}

.main-nav a.active {
  color: var(--accent);
}

.main-nav a.active::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
  box-shadow: 0 0 8px rgba(34, 211, 238, 0.5);
}

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

/* Banner */
.page-banner {
  position: relative;
  min-height: 320px;
  display: flex;
  align-items: center;
  padding: 140px 0 80px;
  overflow: hidden;
}

.banner-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.banner-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(5, 10, 26, 0.92) 0%, rgba(5, 10, 26, 0.7) 50%, rgba(5, 10, 26, 0.4) 100%);
  z-index: 1;
}

.banner-content {
  position: relative;
  z-index: 2;
  max-width: 720px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.8125rem;
  color: var(--text-muted);
  margin-bottom: 20px;
}

.breadcrumb a {
  color: var(--text-secondary);
}

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

.breadcrumb span {
  color: var(--text-muted);
}

.page-banner h1 {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 900;
  line-height: 1.2;
  letter-spacing: -0.01em;
  margin-bottom: 18px;
  color: var(--text-primary);
  text-shadow: 0 4px 24px rgba(0, 0, 0, 0.45);
}

.page-banner .banner-desc {
  font-size: 1.0625rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 560px;
}

/* Benefit Numbered List */
.benefit-section {
  background: var(--bg-secondary);
  padding: 100px 0;
}

.benefit-grid {
  row-gap: 24px;
}

.benefit-card {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 30px;
  min-height: 300px;
  position: relative;
  overflow: hidden;
  transition: all var(--transition);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
}

.benefit-card:hover {
  background: var(--glass-hover);
  border-color: rgba(34, 211, 238, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.benefit-num {
  font-size: 4rem;
  font-weight: 900;
  line-height: 1;
  color: rgba(34, 211, 238, 0.14);
  position: absolute;
  top: 20px;
  right: 20px;
  font-family: "Inter", sans-serif;
  letter-spacing: -0.03em;
  transition: color var(--transition);
}

.benefit-card:hover .benefit-num {
  color: rgba(34, 211, 238, 0.28);
}

.benefit-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: rgba(34, 211, 238, 0.1);
  border: 1px solid rgba(34, 211, 238, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.125rem;
  margin-bottom: 24px;
  transition: all var(--transition);
}

.benefit-card:hover .benefit-icon {
  background: rgba(34, 211, 238, 0.16);
  box-shadow: 0 0 20px rgba(34, 211, 238, 0.18);
}

.benefit-card h3 {
  font-size: 1.1875rem;
  font-weight: 700;
  margin-bottom: 12px;
  line-height: 1.4;
}

.benefit-card p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
}

/* Stats */
.stats-section {
  padding: 80px 0;
  background: var(--bg-primary);
}

.stats-grid {
  row-gap: 24px;
}

.stat-item {
  text-align: center;
  padding: 40px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--glass);
  transition: all var(--transition);
}

.stat-item:hover {
  border-color: rgba(34, 211, 238, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}

.stat-num {
  font-size: clamp(2rem, 3.5vw, 3rem);
  font-weight: 900;
  color: var(--accent);
  line-height: 1.2;
  letter-spacing: -0.02em;
  margin-bottom: 8px;
  font-family: "Inter", sans-serif;
}

.stat-label {
  font-size: 0.875rem;
  color: var(--text-secondary);
}

/* Feature Split */
.feature-section {
  background: var(--bg-secondary);
}

.feature-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.feature-media {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.feature-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  min-height: 400px;
  transition: transform 0.6s ease-out;
}

.feature-media:hover img {
  transform: scale(1.03);
}

.feature-media::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(5, 10, 26, 0) 40%, rgba(5, 10, 26, 0.35) 100%);
  pointer-events: none;
}

.feature-content h2 {
  font-size: clamp(1.5rem, 3vw, 2.125rem);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 20px;
}

.feature-content p {
  color: var(--text-secondary);
  margin-bottom: 28px;
  line-height: 1.9;
}

.feature-list {
  margin-bottom: 36px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 0;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border);
  font-size: 0.9375rem;
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-list li::before {
  content: '\f00c';
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  color: var(--accent);
  font-size: 0.8125rem;
  width: 20px;
  height: 20px;
  background: rgba(34, 211, 238, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

/* Steps */
.steps-section {
  background: var(--bg-primary);
}

.steps-grid {
  row-gap: 24px;
}

.step-item {
  position: relative;
  padding: 44px 32px 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  background: var(--glass);
  text-align: center;
  transition: all var(--transition);
}

.step-item:hover {
  border-color: rgba(34, 211, 238, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}

.step-number {
  width: 56px;
  height: 56px;
  margin: 0 auto 20px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(34, 211, 238, 0.15), rgba(37, 99, 235, 0.15));
  border: 1px solid rgba(34, 211, 238, 0.35);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.375rem;
  font-weight: 800;
  color: var(--accent);
  font-family: "Inter", sans-serif;
}

.step-item h3 {
  font-size: 1.125rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.step-item p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 260px;
  margin: 0 auto;
}

/* FAQ */
.faq-section {
  background: var(--bg-secondary);
}

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

.faq-item {
  background: var(--glass);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  margin-bottom: 16px;
  overflow: hidden;
  transition: all var(--transition);
}

.faq-item:hover {
  border-color: rgba(34, 211, 238, 0.25);
}

.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 28px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-primary);
  text-align: left;
  transition: color var(--transition);
}

.faq-question:hover {
  color: var(--accent);
}

.faq-question i {
  font-size: 0.875rem;
  color: var(--accent);
  transition: transform 0.3s ease-out;
  flex-shrink: 0;
}

.faq-item.open .faq-question i {
  transform: rotate(45deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease-out;
}

.faq-answer p {
  padding: 0 28px 24px;
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.85;
}

/* CTA */
.cta-section {
  padding: 100px 0;
  position: relative;
  background: var(--bg-primary);
}

.cta-box {
  position: relative;
  text-align: center;
  padding: 80px 48px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background:
    radial-gradient(ellipse at 50% 120%, rgba(34, 211, 238, 0.15), transparent 65%),
    var(--bg-secondary);
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/coverpic/cover-3.png');
  background-size: cover;
  background-position: center;
  opacity: 0.08;
  z-index: 0;
}

.cta-box > * {
  position: relative;
  z-index: 1;
}

.cta-box h2 {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 900;
  line-height: 1.3;
  margin-bottom: 16px;
}

.cta-box p {
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 520px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

/* Footer */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 72px 0 32px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
  gap: 48px;
  margin-bottom: 56px;
}

.footer-logo {
  margin-bottom: 16px;
}

.footer-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 320px;
}

.footer-col-title {
  font-size: 0.9375rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

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

.footer-links a {
  font-size: 0.875rem;
  color: var(--text-secondary);
  transition: all var(--transition);
}

.footer-links a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-contact li {
  font-size: 0.875rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 10px;
}

.footer-contact i {
  color: var(--accent);
  font-size: 0.8125rem;
  width: 18px;
  text-align: center;
}

.copyright-bar {
  border-top: 1px solid var(--border);
  padding-top: 24px;
  text-align: center;
}

.copyright-bar p {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.copyright-bar .site-name {
  color: var(--text-secondary);
  font-weight: 600;
}

/* Responsive */
@media (max-width: 1023px) {
  .header-inner {
    gap: 16px;
  }

  .main-nav {
    gap: 20px;
  }

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

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

  .feature-media img {
    min-height: 320px;
  }
}

@media (max-width: 639px) {
  .container-custom {
    padding: 0 20px;
  }

  .section {
    padding: 64px 0;
  }

  .site-header {
    position: fixed;
  }

  .header-inner {
    height: 60px;
    flex-wrap: nowrap;
  }

  .header-cta {
    display: none;
  }

  .main-nav-wrap {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: none;
    -ms-overflow-style: none;
  }

  .main-nav-wrap::-webkit-scrollbar {
    display: none;
  }

  .main-nav {
    display: flex;
    flex-wrap: nowrap;
    gap: 20px;
    padding: 0 4px;
  }

  .main-nav li {
    flex: 0 0 auto;
  }

  .main-nav a {
    font-size: 0.8125rem;
    white-space: nowrap;
  }

  .page-banner {
    min-height: 280px;
    padding: 110px 0 60px;
  }

  .page-banner h1 {
    font-size: 1.75rem;
  }

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

  .benefit-card {
    min-height: auto;
    padding: 28px 24px;
  }

  .benefit-num {
    font-size: 3rem;
  }

  .cta-box {
    padding: 48px 24px;
  }

  .cta-box h2 {
    font-size: 1.5rem;
  }

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}