/* roulang page: index */
:root {
  --primary: #4f46e5;
  --primary-dark: #4338ca;
  --secondary: #06b6d4;
  --accent: #f59e0b;
  --dark: #0f172a;
  --noble: #1e293b;
  --text: #1c2333;
  --muted: #667085;
  --bg: #f5f7fb;
  --card: #ffffff;
  --border: #e5e9f2;
  --radius-sm: 12px;
  --radius: 20px;
  --radius-lg: 28px;
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, .06);
  --shadow: 0 10px 24px rgba(15, 23, 42, .08);
  --shadow-lg: 0 24px 50px rgba(79, 70, 229, .14);
  --space-section: 90px;
  --font: "Inter", "PingFang SC", "Microsoft YaHei", system-ui, -apple-system, sans-serif;
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 120px;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, h4, h5, h6 {
  font-weight: 800;
  line-height: 1.3;
  color: var(--dark);
  margin: 0 0 .5rem;
}

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

a {
  color: inherit;
  text-decoration: none;
  transition: color .25s ease, background-color .25s ease, box-shadow .25s ease, transform .25s ease, border-color .25s ease;
}

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

button, input, summary {
  font: inherit;
  border: none;
  outline: none;
}

button {
  cursor: pointer;
  background: none;
  color: inherit;
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
summary:focus-visible {
  outline: 3px solid rgba(79, 70, 229, .35);
  outline-offset: 3px;
}

.container {
  max-width: 1200px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 1080;
  background: rgba(255, 255, 255, .94);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
}

.header-top {
  padding: 12px 0;
}

.header-top .container {
  gap: 14px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 1.38rem;
  font-weight: 800;
  color: var(--dark);
  letter-spacing: -.02em;
  white-space: nowrap;
}

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

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  box-shadow: 0 8px 18px rgba(79, 70, 229, .28);
}

.header-search {
  display: flex;
  align-items: center;
  gap: 6px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 50px;
  padding: 5px 6px 5px 16px;
  min-width: 280px;
  box-shadow: var(--shadow-sm);
  transition: border-color .25s ease, box-shadow .25s ease;
}

.header-search:focus-within {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(79, 70, 229, .12);
}

.header-search i {
  color: var(--muted);
  font-size: 14px;
}

.header-search input {
  border: none;
  background: transparent;
  flex: 1;
  min-width: 0;
  color: var(--text);
  font-size: .9rem;
}

.header-search input::placeholder {
  color: #9aa3b2;
}

.header-search button {
  background: var(--primary);
  color: #fff;
  border-radius: 40px;
  padding: 8px 18px;
  font-size: .88rem;
  font-weight: 600;
  transition: background-color .25s ease, transform .2s ease;
}

.header-search button:hover {
  background: var(--primary-dark);
}

.header-hot {
  font-size: .85rem;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.header-hot a {
  color: var(--noble);
  font-weight: 600;
  background: var(--bg);
  border-radius: 30px;
  padding: 5px 12px;
  transition: all .25s ease;
}

.header-hot a:hover {
  background: rgba(79, 70, 229, .1);
  color: var(--primary);
}

.nav-row {
  background: #fff;
  border-top: 1px solid var(--border);
}

.nav-row .container {
  position: relative;
  align-items: center;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 2px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.site-nav a {
  display: block;
  padding: 13px 20px;
  font-size: .95rem;
  font-weight: 600;
  color: var(--noble);
  border-bottom: 3px solid transparent;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

.nav-toggler {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: var(--bg);
  color: var(--dark);
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: all .25s ease;
}

.nav-toggler:hover {
  background: rgba(79, 70, 229, .1);
  color: var(--primary);
}

.btn {
  border-radius: 50px;
  font-weight: 600;
  padding: 12px 24px;
  font-size: .95rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  transition: all .25s ease;
}

.btn-main {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 12px 24px -10px rgba(79, 70, 229, .55);
}

.btn-main:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 18px 30px -12px rgba(79, 70, 229, .55);
}

.btn-outline-light {
  background: transparent;
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, .65);
}

.btn-outline-light:hover {
  background: rgba(255, 255, 255, .14);
  color: #fff;
  transform: translateY(-2px);
}

.btn:active {
  transform: scale(.98);
}

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

.btn-light:hover {
  background: #f1f0ff;
  color: var(--primary-dark);
}

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

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(79, 70, 229, .08);
  color: var(--primary);
  font-size: .85rem;
  font-weight: 700;
  padding: 6px 14px;
  border-radius: 40px;
  letter-spacing: .02em;
}

.section-head {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 44px;
}

.section-head h2 {
  font-size: 2.1rem;
  margin: 16px 0 12px;
  letter-spacing: -.02em;
}

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

/* Hero */
.hero {
  position: relative;
  padding: 130px 0;
  background-size: cover;
  background-position: center;
  color: #fff;
  overflow: hidden;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(100deg, rgba(15, 23, 42, .92), rgba(79, 70, 229, .62), rgba(6, 182, 212, .22));
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 780px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, .14);
  border: 1px solid rgba(255, 255, 255, .2);
  border-radius: 50px;
  padding: 7px 16px;
  font-size: .86rem;
  font-weight: 600;
  color: #fff;
}

.hero h1 {
  color: #fff;
  font-size: 3.4rem;
  font-weight: 800;
  margin: 22px 0 18px;
  letter-spacing: -.03em;
}

.hero p {
  color: rgba(255, 255, 255, .88);
  font-size: 1.14rem;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 30px;
  flex-wrap: wrap;
}

.hero-stats {
  display: flex;
  gap: 46px;
  margin-top: 52px;
  padding-top: 26px;
  border-top: 1px solid rgba(255, 255, 255, .18);
  flex-wrap: wrap;
}

.stat-number {
  display: block;
  font-size: 2.1rem;
  font-weight: 800;
  color: #fff;
  line-height: 1.2;
}

.stat-label {
  font-size: .88rem;
  color: rgba(255, 255, 255, .72);
}

/* Intro */
.intro-section {
  background: var(--bg);
}

.intro-image {
  width: 100%;
  height: 100%;
  min-height: 320px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
}

.intro-points {
  list-style: none;
  margin: 0;
  padding: 0;
}

.intro-points li {
  display: flex;
  gap: 12px;
  padding: 10px 0;
}

.intro-points li i {
  color: var(--secondary);
  margin-top: 6px;
  font-size: 14px;
}

.intro-actions {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

/* Category */
.category-section {
  background: #fff;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.category-card {
  position: relative;
  display: block;
  height: 300px;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow);
  isolation: isolate;
}

.category-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
  z-index: -2;
}

.category-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(165deg, rgba(15, 23, 42, .15), rgba(15, 23, 42, .88));
  z-index: -1;
}

.category-card:hover .category-bg {
  transform: scale(1.06);
}

.category-card:hover {
  box-shadow: var(--shadow-lg);
}

.category-card:active {
  transform: scale(.99);
}

.category-body {
  position: absolute;
  left: 0;
  right: 0;
  bottom: 0;
  padding: 26px;
  color: #fff;
}

.category-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: rgba(255, 255, 255, .16);
  border: 1px solid rgba(255, 255, 255, .22);
  color: #fff;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}

.category-body h3 {
  color: #fff;
  font-size: 1.45rem;
  margin: 14px 0 8px;
}

.category-body p {
  color: rgba(255, 255, 255, .82);
  font-size: .92rem;
  margin-bottom: 14px;
  max-width: 440px;
}

/* Latest */
.latest-section {
  background: var(--bg);
}

.latest-list {
  max-width: 880px;
  margin: 0 auto;
}

.latest-item {
  display: flex;
  gap: 20px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  margin-bottom: 16px;
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease, border-color .25s ease;
}

.latest-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
  border-color: transparent;
}

.latest-cover {
  width: 190px;
  height: 132px;
  border-radius: 16px;
  overflow: hidden;
  flex-shrink: 0;
}

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

.latest-body {
  flex: 1;
  min-width: 0;
}

.latest-meta {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 6px;
  flex-wrap: wrap;
}

.badge-cat {
  display: inline-block;
  background: rgba(6, 182, 212, .12);
  color: #0891b2;
  font-size: .78rem;
  font-weight: 700;
  padding: 3px 11px;
  border-radius: 30px;
  line-height: 1.5;
}

.latest-date {
  font-size: .84rem;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 5px;
}

.latest-body h3 {
  font-size: 1.16rem;
  margin-bottom: 6px;
}

.latest-body h3 a {
  color: var(--dark);
}

.latest-body h3 a:hover {
  color: var(--primary);
}

.latest-body p {
  color: var(--muted);
  font-size: .92rem;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.read-more {
  font-size: .88rem;
  font-weight: 700;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.read-more:hover {
  color: var(--primary-dark);
  gap: 10px;
}

.empty-tip {
  background: #fff;
  border: 1px dashed var(--border);
  border-radius: var(--radius);
  padding: 50px 20px;
  text-align: center;
  color: var(--muted);
  font-size: .95rem;
}

/* Ranking */
.ranking-section {
  background: #fff;
  border-bottom: 1px solid var(--border);
}

.ranking-section .section-tag {
  background: rgba(245, 158, 11, .12);
  color: #b45309;
}

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

.ranking-list li {
  display: flex;
  align-items: center;
  gap: 16px;
  background: var(--bg);
  border-radius: 18px;
  padding: 16px 20px;
  margin-bottom: 12px;
  transition: transform .25s ease, box-shadow .25s ease;
}

.ranking-list li:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow);
}

.rank-num {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--secondary);
  width: 46px;
  text-align: center;
  flex-shrink: 0;
}

.rank-num.top {
  color: var(--primary);
}

.rank-info {
  flex: 1;
  min-width: 0;
}

.rank-info strong {
  display: block;
  font-size: 1rem;
  color: var(--dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.rank-info small {
  color: var(--muted);
  font-size: .82rem;
}

.rank-heat {
  text-align: right;
  color: var(--muted);
  font-size: .86rem;
  white-space: nowrap;
}

.rank-heat i {
  color: var(--accent);
  margin-right: 4px;
}

.heat-bar {
  width: 96px;
  height: 6px;
  background: #e2e5ec;
  border-radius: 6px;
  overflow: hidden;
  margin-top: 5px;
  margin-left: auto;
}

.heat-bar span {
  display: block;
  height: 100%;
  border-radius: 6px;
  background: linear-gradient(90deg, var(--primary), var(--secondary));
}

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

.step-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 30px 24px;
  height: 100%;
  box-shadow: var(--shadow-sm);
  transition: transform .25s ease, box-shadow .25s ease;
}

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

.step-number {
  width: 54px;
  height: 54px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--secondary));
  color: #fff;
  font-size: 1.35rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
  box-shadow: 0 10px 20px rgba(79, 70, 229, .22);
}

.step-card h3 {
  font-size: 1.16rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step-card p {
  font-size: .92rem;
  color: var(--muted);
  margin: 0;
}

/* Features */
.features-section {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: 100px 0;
  color: #fff;
}

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

.features-section .section-head p {
  color: rgba(255, 255, 255, .78);
}

.features-section .section-tag {
  background: rgba(255, 255, 255, .14);
  color: #fff;
}

.feature-card {
  background: rgba(255, 255, 255, .09);
  border: 1px solid rgba(255, 255, 255, .16);
  border-radius: var(--radius);
  padding: 28px;
  height: 100%;
  backdrop-filter: blur(6px);
  transition: transform .25s ease, background-color .25s ease;
}

.feature-card:hover {
  transform: translateY(-4px);
  background: rgba(255, 255, 255, .14);
}

.feature-card i {
  font-size: 1.9rem;
  color: var(--secondary);
  margin-bottom: 14px;
}

.feature-card h3 {
  color: #fff;
  font-size: 1.08rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.feature-card p {
  color: rgba(255, 255, 255, .72);
  font-size: .9rem;
  margin: 0;
}

/* FAQ */
.faq-section {
  background: #fff;
}

.faq-list {
  max-width: 820px;
  margin: 0 auto;
}

.faq-item {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 20px 24px;
  margin-bottom: 12px;
  transition: box-shadow .25s ease, border-color .25s ease;
}

.faq-item[open] {
  border-color: rgba(79, 70, 229, .25);
  box-shadow: var(--shadow-sm);
}

.faq-item summary {
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 700;
  font-size: 1.03rem;
  color: var(--dark);
  cursor: pointer;
}

.faq-item summary::-webkit-details-marker {
  display: none;
}

.faq-item summary::after {
  content: "\f078";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 14px;
  color: var(--primary);
  transition: transform .3s ease;
  flex-shrink: 0;
}

.faq-item[open] summary::after {
  transform: rotate(180deg);
}

.faq-item p {
  margin: 14px 0 0;
  color: var(--muted);
  font-size: .95rem;
  max-width: 92%;
}

/* CTA */
.cta-section {
  position: relative;
  padding: 100px 0;
  background-size: cover;
  background-position: center;
  text-align: center;
  color: #fff;
}

.cta-section h2 {
  color: #fff;
  font-size: 2.25rem;
  margin-bottom: 14px;
}

.cta-section p {
  color: rgba(255, 255, 255, .84);
  font-size: 1.06rem;
  max-width: 620px;
  margin: 0 auto 28px;
}

.cta-actions {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* Footer */
.site-footer {
  background: var(--dark);
  color: #94a3b8;
  padding: 64px 0 24px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 1.35rem;
  font-weight: 800;
  margin-bottom: 16px;
}

.footer-brand:hover {
  color: #fff;
}

.footer-brand .logo-icon {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  font-size: 15px;
}

.site-footer p {
  color: #94a3b8;
  font-size: .92rem;
}

.footer-col h4 {
  color: #fff;
  font-size: 1rem;
  margin-bottom: 16px;
}

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

.footer-col a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: #94a3b8;
  padding: 5px 0;
  font-size: .92rem;
}

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

.footer-col a i {
  color: var(--secondary);
  font-size: 12px;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, .1);
  margin-top: 44px;
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 10px;
  font-size: .88rem;
  color: #94a3b8;
}

@media (max-width: 991.98px) {
  :root {
    --space-section: 72px;
  }
  .hero {
    padding: 90px 0;
  }
  .hero h1 {
    font-size: 2.8rem;
  }
  .header-search {
    min-width: 230px;
  }
  .category-card {
    height: 260px;
  }
}

@media (max-width: 767.98px) {
  :root {
    --space-section: 56px;
  }
  .header-top {
    padding: 10px 0;
  }
  .header-top .container {
    flex-wrap: wrap;
    gap: 10px;
  }
  .brand-logo {
    font-size: 1.25rem;
  }
  .header-search {
    order: 3;
    width: 100%;
    min-width: 0;
  }
  .header-hot {
    display: none;
  }
  .site-nav {
    display: none;
    position: absolute;
    top: calc(100% + 10px);
    left: 16px;
    right: 16px;
    background: #fff;
    padding: 12px;
    border-radius: 20px;
    box-shadow: var(--shadow-lg);
    flex-direction: column;
    gap: 4px;
  }
  .site-nav.open {
    display: flex;
  }
  .site-nav a {
    width: 100%;
    padding: 12px 16px;
    border-radius: 12px;
    border-bottom: none;
  }
  .site-nav a:hover,
  .site-nav a.active {
    background: rgba(79, 70, 229, .08);
    color: var(--primary);
    border-bottom: none;
  }
  .nav-toggler {
    display: inline-flex;
  }
  .nav-row {
    padding: 8px 0;
  }
  .hero {
    padding: 66px 0;
  }
  .hero h1 {
    font-size: 2.15rem;
  }
  .hero p {
    font-size: 1rem;
  }
  .hero-stats {
    gap: 20px;
    margin-top: 34px;
  }
  .stat-number {
    font-size: 1.6rem;
  }
  .section-head h2 {
    font-size: 1.65rem;
  }
  .intro-image {
    min-height: 240px;
  }
  .latest-item {
    flex-direction: column;
  }
  .latest-cover {
    width: 100%;
    height: 190px;
  }
  .latest-body p {
    -webkit-line-clamp: 3;
  }
  .ranking-list li {
    padding: 13px 14px;
    gap: 10px;
  }
  .rank-heat {
    display: none;
  }
  .category-card {
    height: 240px;
  }
  .feature-card {
    padding: 22px;
  }
  .step-card {
    padding: 24px 20px;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

@media (max-width: 575.98px) {
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-actions .btn {
    justify-content: center;
  }
  .hero-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 18px;
  }
  .hero h1 {
    font-size: 1.9rem;
  }
  .category-card {
    height: 220px;
  }
  .category-body p {
    font-size: .86rem;
  }
  .cta-section h2 {
    font-size: 1.75rem;
  }
  .section-head h2 {
    font-size: 1.5rem;
  }
  .faq-item {
    padding: 16px 18px;
  }
  .faq-item summary {
    font-size: .95rem;
  }
}

/* roulang page: category1 */
:root {
            --primary: #6366f1;
            --primary-dark: #4f46e5;
            --primary-light: #818cf8;
            --accent: #f59e0b;
            --accent-light: #fbbf24;
            --dark: #0f172a;
            --dark-soft: #1e293b;
            --dark-light: #334155;
            --bg: #f1f5f9;
            --bg-white: #ffffff;
            --text: #1e293b;
            --text-muted: #64748b;
            --border: #e2e8f0;
            --radius: 16px;
            --radius-sm: 10px;
            --radius-lg: 24px;
            --shadow-sm: 0 2px 8px rgba(15, 23, 42, .06);
            --shadow: 0 8px 30px rgba(15, 23, 42, .08);
            --shadow-lg: 0 20px 50px rgba(15, 23, 42, .12);
            --transition: all .25s ease;
            --font: 'PingFang SC', 'Microsoft YaHei', 'Helvetica Neue', Arial, sans-serif;
        }

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

        html {
            scroll-behavior: smooth;
        }

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

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

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

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

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

        .container {
            max-width: 1280px;
        }

        /* ========== Header / Nav ========== */
        .site-header {
            background: rgba(15, 23, 42, .95);
            backdrop-filter: blur(14px);
            -webkit-backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
            z-index: 1050;
        }

        .header-top {
            padding: 12px 0;
        }

        .brand-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.5rem;
            font-weight: 800;
            color: #fff;
            letter-spacing: .5px;
            white-space: nowrap;
        }

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

        .logo-icon {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            border-radius: 10px;
            color: #fff;
            font-size: 1rem;
            box-shadow: 0 4px 14px rgba(99, 102, 241, .4);
        }

        .header-search {
            display: flex;
            align-items: center;
            background: rgba(255, 255, 255, .08);
            border: 1px solid rgba(255, 255, 255, .12);
            border-radius: 40px;
            padding: 0 6px 0 14px;
            width: 340px;
            transition: var(--transition);
        }

        .header-search:focus-within {
            background: rgba(255, 255, 255, .14);
            border-color: var(--primary-light);
            box-shadow: 0 0 0 3px rgba(99, 102, 241, .25);
        }

        .header-search i {
            color: rgba(255, 255, 255, .6);
            font-size: .9rem;
            margin-right: 8px;
        }

        .header-search input {
            background: transparent;
            border: none;
            color: #fff;
            font-size: .875rem;
            padding: 8px 0;
            flex: 1;
            min-width: 0;
        }

        .header-search input::placeholder {
            color: rgba(255, 255, 255, .45);
        }

        .header-search button {
            background: var(--primary);
            color: #fff;
            border-radius: 40px;
            font-size: .8rem;
            font-weight: 600;
            padding: 7px 18px;
            cursor: pointer;
            transition: var(--transition);
            white-space: nowrap;
        }

        .header-search button:hover {
            background: var(--primary-dark);
        }

        .header-hot {
            color: rgba(255, 255, 255, .7);
            font-size: .8rem;
            display: flex;
            align-items: center;
            gap: 8px;
            flex-wrap: wrap;
        }

        .header-hot a {
            color: rgba(255, 255, 255, .8);
            padding: 2px 10px;
            border-radius: 20px;
            background: rgba(255, 255, 255, .06);
            transition: var(--transition);
        }

        .header-hot a:hover {
            background: var(--primary);
            color: #fff;
        }

        .nav-row {
            border-top: 1px solid rgba(255, 255, 255, .06);
            padding: 6px 0;
        }

        .site-nav {
            display: flex;
            gap: 4px;
            align-items: center;
        }

        .site-nav li a {
            display: inline-flex;
            align-items: center;
            color: rgba(255, 255, 255, .8);
            font-size: .9rem;
            font-weight: 500;
            padding: 8px 18px;
            border-radius: 30px;
            transition: var(--transition);
        }

        .site-nav li a:hover {
            color: #fff;
            background: rgba(255, 255, 255, .08);
        }

        .site-nav li a.active {
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            box-shadow: 0 4px 16px rgba(99, 102, 241, .35);
        }

        .nav-toggler {
            display: none;
            background: rgba(255, 255, 255, .1);
            color: #fff;
            border-radius: 10px;
            padding: 6px 12px;
            font-size: 1.1rem;
            cursor: pointer;
        }

        /* ========== Hero ========== */
        .category-hero {
            position: relative;
            padding: 110px 0 90px;
            background: linear-gradient(120deg, rgba(15, 23, 42, .92) 0%, rgba(30, 41, 59, .82) 50%, rgba(15, 23, 42, .88) 100%), url('/assets/images/backpic/back-1.png') center/cover no-repeat;
            color: #fff;
            overflow: hidden;
        }

        .category-hero::before {
            content: '';
            position: absolute;
            top: -60px;
            right: -60px;
            width: 280px;
            height: 280px;
            background: radial-gradient(circle, rgba(99, 102, 241, .35), transparent 70%);
            border-radius: 50%;
        }

        .category-hero::after {
            content: '';
            position: absolute;
            bottom: -40px;
            left: 20%;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(245, 158, 11, .2), transparent 70%);
            border-radius: 50%;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            max-width: 760px;
        }

        .hero-breadcrumb {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: .82rem;
            color: rgba(255, 255, 255, .6);
            background: rgba(255, 255, 255, .08);
            padding: 6px 14px;
            border-radius: 30px;
            margin-bottom: 20px;
        }

        .hero-breadcrumb a {
            color: rgba(255, 255, 255, .6);
        }

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

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--accent));
            padding: 6px 16px;
            border-radius: 30px;
            font-size: .8rem;
            font-weight: 600;
            margin-bottom: 18px;
            box-shadow: 0 4px 18px rgba(99, 102, 241, .35);
        }

        .hero-title {
            font-size: clamp(2rem, 4vw, 3.2rem);
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 16px;
            letter-spacing: 1px;
        }

        .hero-title span {
            background: linear-gradient(90deg, var(--accent-light), var(--primary-light));
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-subtitle {
            font-size: 1.05rem;
            color: rgba(255, 255, 255, .8);
            margin-bottom: 30px;
            max-width: 620px;
            line-height: 1.8;
        }

        .hero-actions {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
            margin-bottom: 44px;
        }

        .btn-glow {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-weight: 600;
            font-size: .92rem;
            padding: 12px 28px;
            border-radius: 40px;
            transition: var(--transition);
            box-shadow: 0 8px 24px rgba(99, 102, 241, .35);
        }

        .btn-glow:hover {
            transform: translateY(-3px);
            box-shadow: 0 12px 30px rgba(99, 102, 241, .45);
            color: #fff;
        }

        .btn-ghost-light {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 255, 255, .1);
            color: #fff;
            font-weight: 600;
            font-size: .92rem;
            padding: 12px 28px;
            border-radius: 40px;
            border: 1px solid rgba(255, 255, 255, .2);
            transition: var(--transition);
        }

        .btn-ghost-light:hover {
            background: rgba(255, 255, 255, .2);
            color: #fff;
            transform: translateY(-3px);
        }

        .hero-stats {
            display: flex;
            gap: 30px;
            flex-wrap: wrap;
        }

        .hero-stat-item {
            display: flex;
            flex-direction: column;
        }

        .hero-stat-item .num {
            font-size: 1.8rem;
            font-weight: 800;
            color: #fff;
            line-height: 1.2;
        }

        .hero-stat-item .label {
            font-size: .8rem;
            color: rgba(255, 255, 255, .6);
        }

        /* ========== Section 通用 ========== */
        .section {
            padding: 80px 0;
        }

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

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

        .section-tag {
            display: inline-block;
            font-size: .8rem;
            font-weight: 700;
            color: var(--primary);
            background: rgba(99, 102, 241, .1);
            padding: 5px 16px;
            border-radius: 30px;
            margin-bottom: 12px;
            letter-spacing: 1px;
        }

        .section-title {
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 800;
            line-height: 1.3;
            margin-bottom: 8px;
        }

        .section-desc {
            color: var(--text-muted);
            font-size: .95rem;
            max-width: 560px;
            line-height: 1.7;
        }

        /* ========== 品类标签 ========== */
        .cat-filter-wrap {
            display: flex;
            gap: 12px;
            flex-wrap: wrap;
        }

        .cat-tag {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: var(--bg-white);
            border: 1px solid var(--border);
            border-radius: 40px;
            padding: 10px 22px;
            font-size: .88rem;
            font-weight: 600;
            color: var(--text);
            transition: var(--transition);
            box-shadow: var(--shadow-sm);
        }

        .cat-tag i {
            color: var(--primary);
        }

        .cat-tag span {
            color: var(--text-muted);
            font-weight: 500;
            font-size: .78rem;
        }

        .cat-tag:hover {
            border-color: var(--primary);
            color: var(--primary);
            transform: translateY(-2px);
            box-shadow: var(--shadow);
        }

        /* ========== 资讯卡片 ========== */
        .news-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            transition: var(--transition);
            border: 1px solid var(--border);
            display: flex;
            flex-direction: column;
            height: 100%;
        }

        .news-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-lg);
            border-color: rgba(99, 102, 241, .3);
        }

        .news-img {
            position: relative;
            overflow: hidden;
            aspect-ratio: 16 / 10;
            background: var(--dark-soft);
        }

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

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

        .news-img .img-tag {
            position: absolute;
            top: 12px;
            left: 12px;
            background: linear-gradient(135deg, var(--primary), var(--primary-dark));
            color: #fff;
            font-size: .75rem;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 20px;
            z-index: 2;
        }

        .news-body {
            padding: 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .news-title {
            font-size: 1rem;
            font-weight: 700;
            line-height: 1.45;
            margin-bottom: 8px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

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

        .news-desc {
            font-size: .85rem;
            color: var(--text-muted);
            line-height: 1.7;
            margin-bottom: 14px;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .news-meta {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: .78rem;
            color: var(--text-muted);
            margin-top: auto;
            border-top: 1px solid var(--border);
            padding-top: 12px;
        }

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

        .news-card.featured .news-img {
            aspect-ratio: 16 / 9;
        }

        .news-card.featured .news-title {
            font-size: 1.15rem;
        }

        .news-card.featured .news-desc {
            -webkit-line-clamp: 3;
        }

        /* ========== 榜单 ========== */
        .rank-section {
            background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .rank-section::before {
            content: '';
            position: absolute;
            top: -80px;
            left: -80px;
            width: 300px;
            height: 300px;
            background: radial-gradient(circle, rgba(99, 102, 241, .25), transparent 70%);
            border-radius: 50%;
        }

        .rank-panel {
            background: rgba(255, 255, 255, .04);
            border: 1px solid rgba(255, 255, 255, .08);
            border-radius: var(--radius-lg);
            padding: 30px;
            backdrop-filter: blur(10px);
        }

        .rank-item {
            display: flex;
            align-items: center;
            gap: 16px;
            padding: 14px 16px;
            border-radius: var(--radius-sm);
            background: transparent;
            transition: var(--transition);
            border-bottom: 1px solid rgba(255, 255, 255, .06);
        }

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

        .rank-item:hover {
            background: rgba(255, 255, 255, .08);
            transform: translateX(6px);
        }

        .rank-num {
            font-size: 1.5rem;
            font-weight: 800;
            color: rgba(255, 255, 255, .25);
            width: 46px;
            text-align: center;
            font-style: italic;
        }

        .rank-item.top-1 .rank-num {
            color: var(--accent-light);
        }

        .rank-item.top-2 .rank-num {
            color: #cbd5e1;
        }

        .rank-item.top-3 .rank-num {
            color: #d97706;
        }

        .rank-icon {
            width: 44px;
            height: 44px;
            border-radius: 12px;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1rem;
            background: linear-gradient(135deg, rgba(99, 102, 241, .3), rgba(245, 158, 11, .3));
            color: #fff;
        }

        .rank-info {
            flex: 1;
            min-width: 0;
        }

        .rank-name {
            font-weight: 700;
            font-size: .95rem;
            margin-bottom: 2px;
        }

        .rank-type {
            font-size: .78rem;
            color: rgba(255, 255, 255, .5);
        }

        .rank-score {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--accent-light);
            margin-right: 8px;
        }

        .rank-change {
            width: 24px;
            text-align: center;
            color: rgba(255, 255, 255, .5);
        }

        .rank-change.up {
            color: #22c55e;
        }

        .rank-change.down {
            color: #ef4444;
        }

        /* ========== 专题 ========== */
        .topic-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
            position: relative;
            height: 100%;
        }

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

        .topic-img {
            position: relative;
            aspect-ratio: 4 / 3;
            overflow: hidden;
        }

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

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

        .topic-img::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 70%;
            background: linear-gradient(transparent, rgba(15, 23, 42, .8));
        }

        .topic-count {
            position: absolute;
            bottom: 12px;
            left: 12px;
            z-index: 2;
            color: #fff;
            font-size: .8rem;
            font-weight: 600;
            background: rgba(0, 0, 0, .45);
            padding: 4px 12px;
            border-radius: 20px;
            backdrop-filter: blur(6px);
        }

        .topic-body {
            padding: 18px;
        }

        .topic-title {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 4px;
        }

        .topic-desc {
            font-size: .82rem;
            color: var(--text-muted);
        }

        /* ========== 数据统计 ========== */
        .stat-card {
            background: var(--bg-white);
            border-radius: var(--radius);
            padding: 30px;
            text-align: center;
            box-shadow: var(--shadow-sm);
            border: 1px solid var(--border);
            transition: var(--transition);
        }

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

        .stat-card .icon {
            width: 56px;
            height: 56px;
            margin: 0 auto 14px;
            display: flex;
            align-items: center;
            justify-content: center;
            border-radius: 16px;
            font-size: 1.4rem;
            background: linear-gradient(135deg, var(--primary-light), var(--primary));
            color: #fff;
            box-shadow: 0 8px 20px rgba(99, 102, 241, .3);
        }

        .stat-card .num {
            font-size: 2.2rem;
            font-weight: 800;
            line-height: 1.2;
            color: var(--dark);
        }

        .stat-card .label {
            font-size: .85rem;
            color: var(--text-muted);
            margin-top: 4px;
        }

        /* ========== FAQ ========== */
        .faq-wrap {
            max-width: 820px;
            margin: 0 auto;
        }

        .accordion-item {
            background: var(--bg-white);
            border: 1px solid var(--border) !important;
            border-radius: var(--radius-sm) !important;
            margin-bottom: 14px;
            overflow: hidden;
            box-shadow: var(--shadow-sm);
        }

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

        .accordion-button:not(.collapsed) {
            background: rgba(99, 102, 241, .06);
            color: var(--primary);
            box-shadow: none;
        }

        .accordion-button:focus {
            box-shadow: none;
        }

        .accordion-body {
            font-size: .9rem;
            color: var(--text-muted);
            padding: 0 22px 20px;
            line-height: 1.8;
        }

        /* ========== CTA ========== */
        .cta-section {
            padding: 0 0 80px;
        }

        .cta-banner {
            background: linear-gradient(120deg, #0f172a, #1e293b 60%, #312e81), url('/assets/images/backpic/back-2.png') center/cover no-repeat;
            border-radius: var(--radius-lg);
            padding: 60px;
            text-align: center;
            color: #fff;
            position: relative;
            overflow: hidden;
        }

        .cta-banner::before {
            content: '';
            position: absolute;
            top: -50px;
            right: -50px;
            width: 200px;
            height: 200px;
            background: radial-gradient(circle, rgba(99, 102, 241, .3), transparent 70%);
            border-radius: 50%;
        }

        .cta-banner h3 {
            font-size: 1.8rem;
            font-weight: 800;
            margin-bottom: 10px;
        }

        .cta-banner p {
            color: rgba(255, 255, 255, .7);
            margin-bottom: 24px;
            font-size: .95rem;
        }

        /* ========== Footer ========== */
        .site-footer {
            background: #0f172a;
            color: rgba(255, 255, 255, .7);
            padding: 60px 0 0;
            border-top: 1px solid rgba(255, 255, 255, .06);
        }

        .footer-brand {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-size: 1.3rem;
            font-weight: 800;
            color: #fff;
            margin-bottom: 14px;
        }

        .site-footer p {
            font-size: .88rem;
            line-height: 1.8;
            max-width: 380px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: .95rem;
            font-weight: 700;
            margin-bottom: 16px;
        }

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

        .footer-col ul li a {
            color: rgba(255, 255, 255, .7);
            font-size: .88rem;
            transition: var(--transition);
        }

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

        .footer-col ul li a i {
            font-size: .75rem;
            margin-right: 6px;
            color: var(--primary-light);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .08);
            padding: 18px 0;
            margin-top: 40px;
            display: flex;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 8px;
            font-size: .8rem;
            color: rgba(255, 255, 255, .4);
        }

        /* ========== Responsive ========== */
        @media (max-width: 1024px) {
            .header-search {
                width: 240px;
            }

            .header-hot {
                display: none;
            }

            .section {
                padding: 60px 0;
            }

            .cta-banner {
                padding: 40px;
            }
        }

        @media (max-width: 768px) {
            .header-top .container {
                flex-wrap: wrap;
                gap: 10px;
            }

            .brand-logo {
                font-size: 1.2rem;
            }

            .header-search {
                width: 100%;
                order: 3;
            }

            .nav-toggler {
                display: block;
            }

            .site-nav {
                display: none;
                flex-direction: column;
                width: 100%;
                padding: 8px 0;
            }

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

            .site-nav li {
                width: 100%;
            }

            .site-nav li a {
                width: 100%;
                justify-content: center;
                border-radius: 10px;
            }

            .nav-row .container {
                flex-wrap: wrap;
            }

            .category-hero {
                padding: 80px 0 60px;
            }

            .hero-actions {
                flex-direction: column;
                align-items: flex-start;
            }

            .btn-glow,
            .btn-ghost-light {
                width: 100%;
                justify-content: center;
            }

            .hero-stats {
                gap: 16px;
            }

            .rank-panel {
                padding: 20px;
            }

            .rank-item {
                flex-wrap: wrap;
                gap: 10px;
            }

            .cta-banner {
                padding: 30px 20px;
            }

            .cta-banner h3 {
                font-size: 1.4rem;
            }

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

        @media (max-width: 520px) {
            .section {
                padding: 48px 0;
            }

            .section-title {
                font-size: 1.35rem;
            }

            .brand-logo {
                font-size: 1.1rem;
            }

            .logo-icon {
                width: 32px;
                height: 32px;
                font-size: .85rem;
            }

            .category-hero {
                padding: 60px 0 50px;
            }

            .hero-title {
                font-size: 1.7rem;
            }

            .hero-subtitle {
                font-size: .92rem;
            }

            .cat-filter-wrap {
                gap: 8px;
            }

            .cat-tag {
                padding: 7px 14px;
                font-size: .78rem;
            }

            .news-body {
                padding: 14px;
            }

            .rank-item {
                padding: 10px 8px;
            }

            .rank-num {
                width: 30px;
                font-size: 1.1rem;
            }

            .rank-icon {
                width: 36px;
                height: 36px;
                font-size: .85rem;
            }

            .rank-score {
                font-size: .95rem;
            }

            .stat-card {
                padding: 20px 12px;
            }

            .stat-card .num {
                font-size: 1.5rem;
            }
        }

/* roulang page: article */
:root {
    --primary: #6c5ce7;
    --primary-dark: #5849c1;
    --primary-light: #8a7cea;
    --secondary: #00cec9;
    --secondary-dark: #0a9e9b;
    --accent: #fd79a8;
    --warning: #fdcb6e;
    --dark: #1a1a2e;
    --dark-soft: #242442;
    --body-bg: #f5f6fa;
    --white: #ffffff;
    --text: #2d3436;
    --text-light: #6b7a8d;
    --text-muted: #8e99a4;
    --border: #e9edf5;
    --radius-lg: 18px;
    --radius-md: 12px;
    --radius-sm: 8px;
    --shadow-sm: 0 2px 12px rgba(26, 26, 46, 0.06);
    --shadow-md: 0 6px 24px rgba(26, 26, 46, 0.10);
    --shadow-lg: 0 12px 40px rgba(108, 92, 231, 0.16);
    --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --font-main: "PingFang SC", "Microsoft YaHei", "Segoe UI", "Helvetica Neue", Arial, sans-serif;
}
*, *::before, *::after { box-sizing: border-box; }
body {
    font-family: var(--font-main);
    background: var(--body-bg);
    color: var(--text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: var(--primary); transition: all .2s ease; }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; display: block; }
button, input { font-family: inherit; }
ul, ol { list-style: none; padding: 0; margin: 0; }

.container { max-width: 1200px; }
.btn {
    border-radius: 50rem;
    font-weight: 600;
    padding: 10px 24px;
    transition: all .25s ease;
}
.btn-primary {
    background: var(--primary);
    border-color: var(--primary);
}
.btn-primary:hover,
.btn-primary:focus {
    background: var(--primary-dark);
    border-color: var(--primary-dark);
    box-shadow: 0 8px 24px rgba(108, 92, 231, 0.28);
}
.btn-outline-light { border-width: 2px; }
.btn-outline-light:hover { background: rgba(255,255,255,0.12); }

.site-header {
    position: sticky;
    top: 0;
    z-index: 1030;
    background: var(--white);
    box-shadow: 0 2px 16px rgba(26, 26, 46, 0.08);
}
.header-top {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-soft) 100%);
    padding: 10px 0;
}
.brand-logo {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--white);
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: 0.5px;
}
.brand-logo:hover { color: #fff; opacity: 0.92; }
.logo-icon {
    width: 40px;
    height: 40px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 12px;
    color: #fff;
    font-size: 18px;
    box-shadow: 0 4px 14px rgba(108, 92, 231, 0.4);
}
.header-search {
    display: flex;
    align-items: center;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.18);
    border-radius: 50rem;
    padding: 5px 6px 5px 16px;
    width: 320px;
    transition: all .3s ease;
}
.header-search:hover,
.header-search:focus-within {
    background: rgba(255,255,255,0.2);
    border-color: rgba(255,255,255,0.35);
}
.header-search i { color: #cfd2e6; font-size: 14px; margin-right: 8px; }
.header-search input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: #fff;
    font-size: 13px;
}
.header-search input::placeholder { color: #a7abd0; }
.header-search button {
    background: var(--primary);
    color: #fff;
    border: none;
    border-radius: 50rem;
    font-size: 13px;
    font-weight: 600;
    padding: 5px 16px;
    transition: all .25s ease;
}
.header-search button:hover { background: var(--primary-dark); }
.header-hot {
    display: flex;
    align-items: center;
    gap: 8px;
    color: #b6bad8;
    font-size: 13px;
    white-space: nowrap;
}
.header-hot a {
    color: #e8eaf5;
    font-weight: 600;
    padding: 4px 12px;
    border-radius: 50rem;
    background: rgba(255,255,255,0.1);
    transition: all .25s ease;
}
.header-hot a:hover { background: var(--primary); color: #fff; }
.nav-row {
    background: var(--white);
    border-bottom: 1px solid var(--border);
    padding: 0;
}
.site-nav { display: flex; gap: 6px; }
.site-nav li a {
    display: inline-flex;
    align-items: center;
    padding: 12px 18px;
    color: var(--text);
    font-size: 15px;
    font-weight: 600;
    border-bottom: 3px solid transparent;
    transition: all .25s ease;
}
.site-nav li a:hover { color: var(--primary); }
.site-nav li a.active,
.site-nav li a.active:hover {
    color: var(--primary);
    border-bottom-color: var(--primary);
}
.nav-toggler {
    display: none;
    background: transparent;
    border: none;
    color: var(--text);
    font-size: 20px;
    padding: 8px 10px;
    border-radius: 8px;
    transition: all .2s ease;
}
.nav-toggler:hover { background: rgba(108, 92, 231, 0.1); color: var(--primary); }

.page-banner {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 90px 0 80px;
    overflow: hidden;
}
.page-banner::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(120deg, rgba(26,26,46,0.92) 0%, rgba(36,36,66,0.78) 45%, rgba(108,92,231,0.4) 100%);
}
.page-banner .container { position: relative; z-index: 2; }
.banner-tag {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: rgba(255,255,255,0.14);
    border: 1px solid rgba(255,255,255,0.3);
    color: #fff;
    font-weight: 600;
    font-size: 13px;
    padding: 6px 16px;
    border-radius: 50rem;
    backdrop-filter: blur(6px);
    margin-bottom: 18px;
}
.page-banner h1 {
    color: #fff;
    font-size: 2.4rem;
    font-weight: 800;
    line-height: 1.35;
    max-width: 860px;
    margin-bottom: 18px;
    text-shadow: 0 2px 20px rgba(0,0,0,0.22);
}
.banner-meta { display: flex; flex-wrap: wrap; gap: 22px; color: #d9dcf1; font-size: 14px; }
.banner-meta span { display: inline-flex; align-items: center; gap: 7px; }

.breadcrumb-wrap {
    padding: 14px 0;
    background: var(--white);
    border-bottom: 1px solid var(--border);
}
.breadcrumb { margin: 0; }
.breadcrumb-item { font-size: 14px; color: var(--text-light); }
.breadcrumb-item a { color: var(--text-light); }
.breadcrumb-item a:hover { color: var(--primary); }
.breadcrumb-item.active { color: var(--primary); font-weight: 600; }
.breadcrumb-item + .breadcrumb-item::before { color: #b6bdcc; }

.article-section { padding: 48px 0 30px; }
.article-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 42px;
    box-shadow: var(--shadow-sm);
    min-height: 400px;
}
.article-body { font-size: 16px; line-height: 1.9; color: #374151; }
.article-content h2 {
    font-size: 1.6rem;
    font-weight: 800;
    color: var(--dark);
    margin: 40px 0 18px;
    padding-left: 16px;
    border-left: 4px solid var(--primary);
}
.article-content h3 {
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--dark);
    margin: 32px 0 14px;
}
.article-content h4 {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--dark);
    margin: 24px 0 12px;
}
.article-content p { margin-bottom: 20px; }
.article-content ul, .article-content ol { margin: 0 0 22px 8px; padding: 0; }
.article-content ul li, .article-content ol li {
    position: relative;
    padding-left: 26px;
    margin-bottom: 10px;
}
.article-content ul li::before {
    content: "";
    position: absolute;
    left: 4px;
    top: 11px;
    width: 9px;
    height: 9px;
    border-radius: 3px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
}
.article-content ol { counter-reset: list; }
.article-content ol li { counter-increment: list; }
.article-content ol li::before {
    content: counter(list);
    position: absolute;
    left: 0;
    top: 1px;
    width: 20px;
    height: 20px;
    background: var(--primary);
    color: #fff;
    font-size: 12px;
    font-weight: 700;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
}
.article-content img {
    border-radius: var(--radius-md);
    box-shadow: var(--shadow-md);
    margin: 24px 0;
    width: auto;
    max-width: 100%;
}
.article-content blockquote {
    border-left: 4px solid var(--secondary);
    background: rgba(0, 206, 201, 0.06);
    padding: 18px 22px;
    border-radius: 0 var(--radius-md) var(--radius-md) 0;
    color: var(--text-light);
    font-style: italic;
    margin: 24px 0;
}
.article-content a { text-decoration: underline; }
.article-footer {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    margin-top: 36px;
    padding-top: 24px;
    border-top: 1px solid var(--border);
    gap: 14px;
}
.article-tags {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
    font-size: 14px;
}
.article-tags .tag-chip {
    background: rgba(108, 92, 231, 0.08);
    color: var(--primary);
    font-weight: 600;
    padding: 4px 14px;
    border-radius: 50rem;
    font-size: 13px;
}
.back-home-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--text-light);
    font-weight: 600;
    font-size: 14px;
    padding: 8px 18px;
    border: 1px solid var(--border);
    border-radius: 50rem;
    transition: all .25s ease;
}
.back-home-btn:hover { color: var(--primary); border-color: var(--primary); background: rgba(108,92,231,.04); }

.not-found {
    text-align: center;
    padding: 60px 20px;
}
.not-found-icon {
    width: 90px;
    height: 90px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(108, 92, 231, 0.08);
    border-radius: 30px;
    color: var(--primary);
    font-size: 38px;
    margin-bottom: 24px;
}
.not-found h2 { font-size: 1.8rem; font-weight: 800; margin-bottom: 12px; color: var(--dark); }
.not-found p { color: var(--text-light); margin-bottom: 24px; }

.article-sidebar { display: flex; flex-direction: column; gap: 24px; }
.sidebar-widget {
    background: var(--white);
    border-radius: var(--radius-lg);
    border: 1px solid var(--border);
    padding: 24px;
    box-shadow: var(--shadow-sm);
}
.widget-title {
    font-size: 18px;
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 9px;
}
.widget-title i {
    color: var(--primary);
    font-size: 16px;
    width: 30px;
    height: 30px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: rgba(108,92,231,.1);
    border-radius: 10px;
}
.widget-list-item {
    display: flex;
    gap: 14px;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    transition: all .25s ease;
}
.widget-list-item:last-child { border-bottom: none; padding-bottom: 0; }
.widget-list-item:hover { transform: translateX(4px); }
.widget-thumb {
    width: 86px;
    min-width: 86px;
    height: 62px;
    border-radius: 10px;
    overflow: hidden;
    background: #eef0f7;
}
.widget-thumb img { width: 100%; height: 100%; object-fit: cover; }
.widget-info h4 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text);
    line-height: 1.5;
    margin-bottom: 5px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.widget-list-item:hover .widget-info h4 { color: var(--primary); }
.widget-info span { font-size: 12px; color: var(--text-muted); }
.sidebar-cats { display: flex; flex-direction: column; gap: 12px; }
.sidebar-cat-item {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 18px;
    background: linear-gradient(135deg, rgba(108,92,231,0.06), rgba(0,206,201,0.06));
    border: 1px solid rgba(108,92,231,0.12);
    border-radius: var(--radius-md);
    color: var(--text);
    font-weight: 600;
    transition: all .3s ease;
}
.sidebar-cat-item i.fa-solid:first-child { color: var(--primary); margin-right: 8px; }
.sidebar-cat-item .fa-arrow-right { font-size: 13px; color: var(--text-muted); transition: all .3s ease; }
.sidebar-cat-item:hover {
    background: linear-gradient(135deg, var(--primary), var(--secondary-dark));
    color: #fff;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 8px 22px rgba(108,92,231,.28);
}
.sidebar-cat-item:hover .fa-arrow-right { color: #fff; transform: translateX(4px); }
.sidebar-note {
    background: linear-gradient(135deg, var(--dark), var(--dark-soft));
    border-radius: var(--radius-lg);
    padding: 26px;
    color: #b6bad8;
    font-size: 14px;
    position: relative;
    overflow: hidden;
}
.sidebar-note::after {
    content: "\f11b";
    font-family: "Font Awesome 6 Free";
    font-weight: 900;
    position: absolute;
    right: 14px;
    bottom: 10px;
    font-size: 64px;
    color: rgba(255,255,255,0.06);
}
.sidebar-note p { margin: 0; position: relative; z-index: 1; }
.empty-tip { color: var(--text-muted); font-size: 14px; padding: 12px 0; }

.related-section {
    padding: 50px 0 30px;
    background: var(--white);
    border-top: 1px solid var(--border);
    border-bottom: 1px solid var(--border);
}
.section-head {
    display: flex;
    align-items: flex-end;
    justify-content: space-between;
    margin-bottom: 30px;
    gap: 18px;
    flex-wrap: wrap;
}
.section-tag {
    display: inline-block;
    background: rgba(108,92,231,.1);
    color: var(--primary);
    font-weight: 700;
    font-size: 13px;
    padding: 4px 14px;
    border-radius: 50rem;
    margin-bottom: 8px;
}
.section-head h2 {
    font-size: 1.8rem;
    font-weight: 800;
    color: var(--dark);
    margin: 0;
}
.section-head .more-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-weight: 600;
    color: var(--text-light);
    font-size: 14px;
    padding: 8px 0;
}
.section-head .more-link:hover { color: var(--primary); }
.section-head .more-link i { transition: all .25s ease; }
.section-head .more-link:hover i { transform: translateX(4px); }

.related-card {
    display: block;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: var(--radius-lg);
    overflow: hidden;
    height: 100%;
    transition: all .3s ease;
    box-shadow: var(--shadow-sm);
}
.related-card:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(108,92,231,.25);
}
.related-thumb {
    overflow: hidden;
    border-radius: 0;
}
.related-thumb img { transition: transform .35s ease; }
.related-card:hover .related-thumb img { transform: scale(1.06); }
.related-body { padding: 20px; }
.related-info { display: flex; align-items: center; justify-content: space-between; gap: 10px; margin-bottom: 9px; }
.related-info .badge {
    background: rgba(108,92,231,.12);
    color: var(--primary);
    font-weight: 600;
    border-radius: 50rem;
    padding: 5px 12px;
    font-size: 12px;
}
.related-date { font-size: 12px; color: var(--text-muted); }
.related-body h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--dark);
    line-height: 1.5;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.related-card:hover .related-body h3 { color: var(--primary); }
.related-body p {
    font-size: 13px;
    color: var(--text-light);
    line-height: 1.6;
    margin: 0;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.category-entry { padding: 44px 0 24px; }
.category-card {
    position: relative;
    display: flex;
    align-items: flex-end;
    border-radius: var(--radius-lg);
    overflow: hidden;
    min-height: 220px;
    box-shadow: var(--shadow-md);
    transition: all .3s ease;
    border: none;
}
.category-card img {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform .4s ease;
}
.category-card::after {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(26,26,46,.85) 0%, rgba(26,26,46,.45) 60%, transparent 100%);
}
.category-card:hover { transform: translateY(-4px); box-shadow: 0 14px 40px rgba(26,26,46,.22); }
.category-card:hover img { transform: scale(1.06); }
.category-card-body {
    position: relative;
    z-index: 2;
    padding: 28px;
    color: #fff;
}
.category-name {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 10px;
}
.category-name i { color: var(--secondary); }
.category-desc {
    font-size: 14px;
    color: rgba(255,255,255,.85);
    line-height: 1.6;
    max-width: 360px;
}

.faq-section { padding: 48px 0 36px; background: var(--white); }
.faq-section .accordion {
    max-width: 920px;
    margin: 0 auto;
}
.accordion-item {
    border: 1px solid var(--border) !important;
    border-radius: var(--radius-md) !important;
    margin-bottom: 16px !important;
    overflow: hidden;
    box-shadow: var(--shadow-sm);
}
.accordion-button {
    font-weight: 600;
    color: var(--dark);
    font-size: 16px;
    padding: 18px 22px !important;
    background: var(--white);
}
.accordion-button:not(.collapsed) {
    background: rgba(108,92,231,.06);
    color: var(--primary);
    box-shadow: none;
}
.accordion-button:focus { box-shadow: none; border-color: rgba(108,92,231,.3); }
.accordion-body { color: var(--text-light); line-height: 1.8; padding: 12px 22px 22px !important; font-size: 15px; }

.cta-section {
    position: relative;
    background-size: cover;
    background-position: center;
    padding: 80px 0;
    overflow: hidden;
}
.cta-section::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(26,26,46,.92), rgba(88,73,193,.75));
}
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 { color: #fff; font-size: 2rem; font-weight: 800; margin-bottom: 14px; }
.cta-section p { color: rgba(255,255,255,.8); font-size: 16px; max-width: 620px; margin: 0 auto 30px; }
.cta-buttons { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }
.cta-btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 50rem;
    font-weight: 700;
    font-size: 15px;
    transition: all .3s ease;
}
.cta-btn-primary { background: var(--secondary); color: var(--dark); }
.cta-btn-primary:hover { background: #e8f5f5; color: var(--dark); transform: translateY(-2px); box-shadow: 0 10px 26px rgba(0,206,201,.35); }
.cta-btn-ghost { border: 2px solid rgba(255,255,255,.6); color: #fff; }
.cta-btn-ghost:hover { background: #fff; color: var(--dark); transform: translateY(-2px); }

.site-footer { background: var(--dark); color: #a7abd0; padding: 50px 0 0; }
.site-footer .footer-brand {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: #fff;
    font-size: 1.3rem;
    font-weight: 800;
    margin-bottom: 16px;
}
.site-footer .footer-brand:hover { color: #fff; opacity: .9; }
.site-footer p { font-size: 14px; line-height: 1.8; color: #8e92b8; }
.footer-col h4 {
    color: #fff;
    font-size: 16px;
    font-weight: 700;
    margin-bottom: 18px;
}
.footer-col ul li { margin-bottom: 12px; }
.footer-col ul li a { color: #8e92b8; font-size: 14px; display: inline-flex; align-items: center; gap: 6px; }
.footer-col ul li a:hover { color: var(--secondary); padding-left: 4px; }
.footer-col ul li a i { font-size: 12px; }
.footer-bottom {
    margin-top: 36px;
    padding: 20px 0;
    border-top: 1px solid rgba(255,255,255,0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 13px;
    color: #62688f;
    flex-wrap: wrap;
    gap: 8px;
}
.footer-bottom span { display: inline-block; }

@media (max-width: 991.98px) {
    .page-banner { padding: 72px 0 62px; }
    .page-banner h1 { font-size: 2rem; }
    .article-card { padding: 30px; }
    .header-search { width: 240px; }
    .header-hot { display: none; }
    .related-body h3 { font-size: 15px; }
}

@media (max-width: 767.98px) {
    .header-top { padding: 8px 0; }
    .header-search { width: 42px; background: transparent; border: none; padding: 6px; }
    .header-search i { margin: 0; color: #cfd2e6; }
    .header-search input,
    .header-search button,
    .header-search:focus-within input,
    .header-search:focus-within button { display: none; }
    .header-search:focus-within { background: transparent; border-color: transparent; }
    .nav-row { position: relative; }
    .site-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--white);
        flex-direction: column;
        padding: 10px;
        box-shadow: 0 18px 32px rgba(26,26,46,.16);
        border-top: 2px solid var(--primary);
        z-index: 1000;
    }
    .site-nav.show { display: flex; }
    .site-nav li a {
        width: 100%;
        padding: 12px 16px;
    }
    .nav-toggler { display: inline-flex; }
    .page-banner { padding: 58px 0 52px; }
    .page-banner h1 { font-size: 1.55rem; }
    .banner-meta { gap: 12px; }
    .article-section { padding: 26px 0 18px; }
    .article-card { padding: 22px 20px; }
    .related-section { padding: 36px 0 24px; }
    .category-card { min-height: 180px; }
    .category-name { font-size: 1.1rem; }
    .category-desc { font-size: 13px; }
    .cta-section h2 { font-size: 1.5rem; }
    .cta-buttons { flex-direction: column; align-items: center; }
    .cta-btn { width: 100%; justify-content: center; }
    .spec-card-title { font-size: 1.3rem !important; }
    .spec-number { font-size: 2rem !important; }
}

@media (max-width: 575.98px) {
    .brand-logo { font-size: 1.05rem; }
    .brand-logo .logo-icon { width: 34px; height: 34px; font-size: 14px; }
    .page-banner h1 { font-size: 1.35rem; }
    .breadcrumb-item { font-size: 12px; }
    .article-body { font-size: 15px; line-height: 1.85; }
    .article-content h2 { font-size: 1.4rem; }
    .article-content h3 { font-size: 1.2rem; }
    .section-head h2 { font-size: 1.4rem; }
    .related-card { margin-bottom: 6px; }
    .related-body { padding: 16px; }
}

@media (max-width: 360px) {
    .site-footer { text-align: center; }
    .footer-bottom { flex-direction: column; text-align: center; }
    .footer-col { width: 100% !important; }
}

/* roulang page: category2 */
:root{
  --primary:#e94560;
  --primary-dark:#c62f4a;
  --primary-light:#fff0f2;
  --accent:#ffa62b;
  --accent-light:#fff7ed;
  --dark:#1a1d29;
  --dark-2:#242838;
  --bg:#f5f6fa;
  --bg-white:#ffffff;
  --text:#1f2430;
  --text-weak:#6b7280;
  --border:#e8eaf0;
  --radius-lg:20px;
  --radius-md:14px;
  --radius-sm:8px;
  --shadow-sm:0 2px 8px rgba(31,36,48,.06);
  --shadow-md:0 6px 20px rgba(31,36,48,.08);
  --shadow-lg:0 12px 32px rgba(31,36,48,.12);
  --transition:all .25s ease;
  --font-main:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Hiragino Sans GB","Microsoft YaHei",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);color:var(--text);line-height:1.7;font-size:15px}
a{text-decoration:none;color:inherit;transition:var(--transition)}
img{max-width:100%;height:auto;display:block}
button{font-family:inherit;cursor:pointer;border:none}
input,textarea{font-family:inherit}
ul,ol{list-style:none}
.container{max-width:1200px;padding-left:20px;padding-right:20px}
.pt-section{padding-top:72px}
.pb-section{padding-bottom:72px}
.bg-white{background:var(--bg-white)}
.text-weak{color:var(--text-weak)}

/* 吸顶导航 */
.site-header{
  background:rgba(255,255,255,.98);
  box-shadow:0 2px 16px rgba(31,36,48,.08);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  z-index:1030;
}
.header-top{
  border-bottom:1px solid var(--border);
  padding:8px 0;
}
.header-top .container{
  gap:16px;
  flex-wrap:wrap;
}
.brand-logo{
  display:flex;
  align-items:center;
  gap:10px;
  font-size:1.3rem;
  font-weight:800;
  color:var(--dark);
  white-space:nowrap;
  letter-spacing:.5px;
}
.brand-logo:hover{color:var(--primary)}
.logo-icon{
  width:38px;height:38px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  border-radius:10px;
  display:inline-flex;
  align-items:center;
  justify-content:center;
  color:#fff;
  font-size:1rem;
  box-shadow:0 4px 12px rgba(233,69,96,.35);
}
.header-search{
  display:flex;align-items:center;
  background:var(--bg);
  border:1px solid var(--border);
  border-radius:50px;
  padding:4px 4px 4px 16px;
  flex:1;
  max-width:460px;
  min-width:220px;
  transition:var(--transition);
}
.header-search:focus-within{
  border-color:var(--primary);
  box-shadow:0 0 0 3px rgba(233,69,96,.12);
  background:#fff;
}
.header-search i{color:var(--text-weak);font-size:.9rem}
.header-search input{
  flex:1;border:none;background:transparent;
  padding:7px 10px;font-size:.9rem;color:var(--text);
  outline:none;min-width:0;
}
.header-search button{
  background:var(--primary);color:#fff;
  border-radius:50px;padding:7px 20px;
  font-size:.85rem;font-weight:600;
  transition:var(--transition);white-space:nowrap;
}
.header-search button:hover{background:var(--primary-dark)}
.header-hot{
  display:flex;align-items:center;gap:6px;
  font-size:.82rem;color:var(--text-weak);
  white-space:nowrap;
}
.header-hot a{
  background:var(--primary-light);
  color:var(--primary);
  padding:4px 12px;
  border-radius:30px;
  font-weight:600;
}
.header-hot a:hover{background:var(--primary);color:#fff}
.nav-row{
  background:var(--dark);
}
.site-nav{
  display:flex;align-items:center;gap:4px;
  margin:0;padding:0;
}
.site-nav li a{
  display:flex;align-items:center;
  color:rgba(255,255,255,.85);
  padding:13px 20px;
  font-size:.92rem;
  font-weight:500;
  border-bottom:3px solid transparent;
  transition:var(--transition);
  white-space:nowrap;
}
.site-nav li a:hover{
  color:#fff;
  background:rgba(255,255,255,.06);
}
.site-nav li a.active{
  color:#fff;
  border-bottom-color:var(--primary);
  background:rgba(255,255,255,.05);
}
.nav-toggler{
  display:none;
  background:transparent;
  color:#fff;
  font-size:1.3rem;
  padding:8px 14px;
}
.header-actions{
  display:flex;align-items:center;gap:10px;
}

/* 页面横幅 */
.category-hero{
  background:linear-gradient(rgba(26,29,41,.82),rgba(26,29,41,.66)),url('/assets/images/backpic/back-2.png') center/cover no-repeat;
  padding:86px 0;
  position:relative;
  color:#fff;
}
.category-hero .hero-badge{
  display:inline-flex;align-items:center;gap:8px;
  background:rgba(255,255,255,.14);
  border:1px solid rgba(255,255,255,.24);
  backdrop-filter:blur(6px);
  color:#fff;
  padding:6px 18px;
  border-radius:50px;
  font-size:.86rem;
  font-weight:600;
  margin-bottom:18px;
}
.category-hero h1{
  font-size:2.4rem;
  font-weight:800;
  line-height:1.25;
  margin-bottom:16px;
  letter-spacing:1px;
}
.category-hero p.lead{
  font-size:1.05rem;
  color:rgba(255,255,255,.88);
  max-width:640px;
  margin-bottom:26px;
}
.crumb{
  display:inline-flex;align-items:center;gap:8px;
  font-size:.85rem;
  color:rgba(255,255,255,.72);
}
.crumb a{color:rgba(255,255,255,.72)}
.crumb a:hover{color:#fff}
.crumb i{font-size:.7rem}
.hero-tags{
  display:flex;flex-wrap:wrap;gap:8px;
  margin-top:20px;
}
.hero-tags span{
  background:rgba(255,255,255,.12);
  border:1px solid rgba(255,255,255,.16);
  color:#fff;
  padding:5px 14px;
  border-radius:30px;
  font-size:.8rem;
  backdrop-filter:blur(4px);
}

/* 板块标题 */
.section-head{
  display:flex;align-items:flex-end;
  justify-content:space-between;
  margin-bottom:36px;
  flex-wrap:wrap;gap:14px;
}
.section-head .info h2{
  font-size:1.8rem;
  font-weight:800;
  margin-bottom:8px;
  color:var(--dark);
  position:relative;
  padding-left:18px;
}
.section-head .info h2::before{
  content:"";position:absolute;left:0;top:10%;
  width:5px;height:80%;
  background:linear-gradient(180deg,var(--primary),var(--accent));
  border-radius:4px;
}
.section-head .info p{
  color:var(--text-weak);
  margin:0;
  font-size:.95rem;
  padding-left:18px;
}
.section-link a{
  color:var(--primary);
  font-weight:600;
  font-size:.9rem;
  display:inline-flex;align-items:center;gap:6px;
}
.section-link a:hover{color:var(--primary-dark);gap:10px}

/* 核心玩法卡片 */
.core-card{
  background:var(--bg-white);
  border-radius:var(--radius-lg);
  padding:28px 24px;
  height:100%;
  border:1px solid var(--border);
  transition:var(--transition);
  position:relative;
  overflow:hidden;
}
.core-card::after{
  content:"";position:absolute;top:0;right:0;
  width:90px;height:90px;
  background:radial-gradient(circle at top right,var(--primary-light),transparent 70%);
  opacity:0;
  transition:var(--transition);
}
.core-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:transparent;
}
.core-card:hover::after{opacity:1}
.core-icon{
  width:58px;height:58px;
  border-radius:16px;
  display:flex;align-items:center;justify-content:center;
  font-size:1.35rem;
  margin-bottom:18px;
  color:#fff;
}
.core-icon.c-1{background:linear-gradient(135deg,#e94560,#ff7a59)}
.core-icon.c-2{background:linear-gradient(135deg,#4f6ef7,#7c5cff)}
.core-icon.c-3{background:linear-gradient(135deg,#f7a635,#ffd166)}
.core-card h3{font-size:1.15rem;font-weight:700;margin-bottom:10px;color:var(--dark)}
.core-card p{font-size:.9rem;color:var(--text-weak);margin-bottom:16px}
.core-list{list-style:none;padding:0;margin:0}
.core-list li{
  display:flex;align-items:center;gap:8px;
  font-size:.86rem;color:var(--text);
  padding:5px 0;
}
.core-list li i{color:var(--primary);font-size:.8rem}

/* 指南文章卡片 */
.article-card{
  background:var(--bg-white);
  border-radius:var(--radius-lg);
  overflow:hidden;
  border:1px solid var(--border);
  height:100%;
  display:flex;
  flex-direction:column;
  transition:var(--transition);
}
.article-card:hover{
  transform:translateY(-6px);
  box-shadow:var(--shadow-lg);
  border-color:transparent;
}
.article-thumb{
  position:relative;
  overflow:hidden;
  aspect-ratio:16/10;
}
.article-thumb img{
  width:100%;height:100%;
  object-fit:cover;
  transition:transform .5s ease;
}
.article-card:hover .article-thumb img{transform:scale(1.06)}
.article-thumb .thumb-tag{
  position:absolute;
  top:12px;left:12px;
  background:var(--primary);
  color:#fff;
  font-size:.75rem;
  font-weight:600;
  padding:4px 12px;
  border-radius:30px;
  box-shadow:0 4px 10px rgba(233,69,96,.4);
}
.article-thumb .play-btn{
  position:absolute;
  top:50%;left:50%;
  transform:translate(-50%,-50%) scale(.8);
  width:52px;height:52px;
  background:rgba(255,255,255,.92);
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  color:var(--primary);
  font-size:1.05rem;
  opacity:0;
  transition:var(--transition);
  box-shadow:0 6px 20px rgba(0,0,0,.2);
}
.article-card:hover .play-btn{
  opacity:1;
  transform:translate(-50%,-50%) scale(1);
}
.article-body{
  padding:22px 22px 18px;
  display:flex;
  flex-direction:column;
  flex:1;
}
.article-meta{
  display:flex;align-items:center;gap:12px;
  font-size:.78rem;color:var(--text-weak);
  margin-bottom:10px;
}
.article-meta i{font-size:.7rem}
.article-body h3{
  font-size:1.05rem;
  font-weight:700;
  line-height:1.5;
  margin-bottom:10px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
}
.article-body h3 a:hover{color:var(--primary)}
.article-body p{
  font-size:.85rem;
  color:var(--text-weak);
  margin-bottom:14px;
  display:-webkit-box;
  -webkit-line-clamp:2;
  -webkit-box-orient:vertical;
  overflow:hidden;
  flex:1;
}
.article-foot{
  display:flex;align-items:center;
  justify-content:space-between;
  border-top:1px solid var(--border);
  padding-top:13px;
}
.article-foot .reads{font-size:.78rem;color:var(--text-weak)}
.article-foot a{
  font-size:.82rem;color:var(--primary);
  font-weight:600;
  display:flex;align-items:center;gap:4px;
}
.article-foot a:hover{gap:8px}

/* 步骤时间线 */
.steps-section{
  background:linear-gradient(135deg,var(--dark) 0%,var(--dark-2) 100%);
  color:#fff;
  padding:80px 0;
}
.steps-wrap{
  position:relative;
}
.steps-wrap::before{
  content:"";
  position:absolute;
  left:50%;top:24px;bottom:24px;
  width:3px;
  background:linear-gradient(180deg,var(--primary),var(--accent));
  transform:translateX(-50%);
  border-radius:4px;
  opacity:.5;
}
.step-item{
  display:flex;
  align-items:flex-start;
  margin-bottom:40px;
  position:relative;
}
.step-item:last-child{margin-bottom:0}
.step-content{
  width:calc(50% - 48px);
  background:rgba(255,255,255,.05);
  border:1px solid rgba(255,255,255,.1);
  border-radius:var(--radius-lg);
  padding:24px 28px;
  backdrop-filter:blur(8px);
  transition:var(--transition);
}
.step-content:hover{
  background:rgba(255,255,255,.09);
  border-color:rgba(255,255,255,.18);
  transform:translateY(-2px);
}
.step-item:nth-child(odd) .step-content{margin-right:auto}
.step-item:nth-child(even) .step-content{margin-left:auto}
.step-num{
  position:absolute;
  left:50%;top:20px;
  transform:translateX(-50%);
  width:42px;height:42px;
  background:linear-gradient(135deg,var(--primary),var(--accent));
  border-radius:50%;
  display:flex;align-items:center;justify-content:center;
  font-weight:800;font-size:1rem;
  color:#fff;
  box-shadow:0 0 0 6px rgba(233,69,96,.22);
  z-index:2;
}
.step-content h3{
  font-size:1.08rem;
  font-weight:700;
  margin-bottom:8px;
  display:flex;align-items:center;gap:8px;
}
.step-content h3 i{color:var(--accent);font-size:.9rem}
.step-content p{
  font-size:.86rem;
  color:rgba(255,255,255,.75);
  margin:0;
}
.step-item:nth-child(odd) .step-content{text-align:left}
.step-item:nth-child(even) .step-content{text-align:left}

/* 热门阅读 */
.hot-list{
  background:var(--bg-white);
  border-radius:var(--radius-lg);
  border:1px solid var(--border);
  padding:8px 0;
  overflow:hidden;
}
.hot-list-item{
  display:flex;align-items:center;
  padding:16px 24px;
  border-bottom:1px solid var(--border);
  transition:var(--transition);
  gap:16px;
}
.hot-list-item:last-child{border-bottom:none}
.hot-list-item:hover{
  background:var(--primary-light);
  padding-left:30px;
}
.hot-rank{
  font-size:1.2rem;
  font-weight:800;
  color:var(--border);
  width:36px;
  text-align:center;
  flex-shrink:0;
}
.hot-list-item:nth-child(1) .hot-rank{color:var(--primary)}
.hot-list-item:nth-child(2) .hot-rank{color:#f56a2b}
.hot-list-item:nth-child(3) .hot-rank{color:#f7a635}
.hot-list-item .info{flex:1;min-width:0}
.hot-list-item .info h4{
  font-size:.98rem;
  font-weight:600;
  margin-bottom:4px;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.hot-list-item .info h4 a:hover{color:var(--primary)}
.hot-list-item .info p{
  font-size:.8rem;color:var(--text-weak);
  display:flex;align-items:center;gap:12px;margin:0;
}
.hot-list-item .hot-icon{
  width:42px;height:42px;
  border-radius:12px;
  display:flex;align-items:center;justify-content:center;
  font-size:1rem;
  flex-shrink:0;
}
.h-1{background:var(--primary-light);color:var(--primary)}
.h-2{background:var(--accent-light);color:var(--accent)}
.h-3{background:#eef2ff;color:#4f6ef7}
.hot-list-item .views{
  font-size:.78rem;
  color:var(--text-weak);
  white-space:nowrap;
  display:flex;align-items:center;gap:5px;
}

/* 注意事项 */
.tips-grid{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:20px;
}
.tip-card{
  background:var(--bg-white);
  border-radius:var(--radius-md);
  padding:22px 24px;
  border-left:4px solid var(--primary);
  box-shadow:var(--shadow-sm);
  display:flex;gap:16px;
  transition:var(--transition);
}
.tip-card:hover{
  box-shadow:var(--shadow-md);
  transform:translateX(4px);
}
.tip-card.tip-2{border-left-color:#4f6ef7}
.tip-card.tip-3{border-left-color:#f7a635}
.tip-card.tip-4{border-left-color:#25a878}
.tip-icon{
  width:42px;height:42px;
  border-radius:12px;
  background:var(--primary-light);
  color:var(--primary);
  display:flex;align-items:center;justify-content:center;
  font-size:1rem;
  flex-shrink:0;
}
.tip-card.tip-2 .tip-icon{background:#eef2ff;color:#4f6ef7}
.tip-card.tip-3 .tip-icon{background:var(--accent-light);color:#f7a635}
.tip-card.tip-4 .tip-icon{background:#e6f7f0;color:#25a878}
.tip-card h3{font-size:.98rem;font-weight:700;margin-bottom:6px}
.tip-card p{font-size:.84rem;color:var(--text-weak);margin:0}

/* FAQ */
.faq-wrap{
  max-width:860px;
  margin:0 auto;
}
.faq-item{
  background:var(--bg-white);
  border:1px solid var(--border);
  border-radius:var(--radius-md);
  margin-bottom:14px;
  overflow:hidden;
  transition:var(--transition);
}
.faq-item:hover{border-color:var(--primary);box-shadow:var(--shadow-sm)}
.faq-question{
  width:100%;
  background:transparent;
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:18px 24px;
  font-size:.98rem;
  font-weight:600;
  color:var(--dark);
  text-align:left;
  transition:var(--transition);
}
.faq-question:hover{color:var(--primary)}
.faq-question i{
  font-size:.85rem;
  color:var(--primary);
  transition:var(--transition);
  flex-shrink:0;
  margin-left:14px;
}
.faq-item.active .faq-question{color:var(--primary)}
.faq-item.active .faq-question i{transform:rotate(180deg)}
.faq-answer{
  max-height:0;
  overflow:hidden;
  transition:max-height .35s ease;
}
.faq-answer-inner{
  padding:0 24px 20px;
  font-size:.88rem;
  color:var(--text-weak);
  line-height:1.8;
  border-top:1px solid var(--border);
  padding-top:16px;
}

/* CTA */
.cta-section{
  background:linear-gradient(rgba(26,29,41,.82),rgba(26,29,41,.78)),url('/assets/images/backpic/back-3.png') center/cover fixed;
  padding:76px 0;
  color:#fff;
  text-align:center;
}
.cta-section h2{
  font-size:1.9rem;
  font-weight:800;
  margin-bottom:14px;
}
.cta-section p{
  color:rgba(255,255,255,.82);
  max-width:560px;
  margin:0 auto 28px;
  font-size:1rem;
}
.btn-main{
  display:inline-flex;align-items:center;gap:8px;
  background:linear-gradient(135deg,var(--primary),#ff6b6b);
  color:#fff;
  padding:12px 30px;
  border-radius:50px;
  font-weight:700;
  font-size:.95rem;
  box-shadow:0 8px 24px rgba(233,69,96,.4);
  transition:var(--transition);
}
.btn-main:hover{
  transform:translateY(-3px);
  box-shadow:0 12px 30px rgba(233,69,96,.5);
  color:#fff;
}
.btn-outline-light{
  display:inline-flex;align-items:center;gap:8px;
  border:2px solid rgba(255,255,255,.7);
  color:#fff;
  padding:10px 26px;
  border-radius:50px;
  font-weight:600;
  font-size:.92rem;
  transition:var(--transition);
  margin-left:12px;
}
.btn-outline-light:hover{
  background:#fff;
  color:var(--dark);
  transform:translateY(-3px);
}

/* 页脚 */
.site-footer{
  background:var(--dark);
  color:rgba(255,255,255,.78);
  padding:64px 0 0;
}
.footer-brand{
  display:flex;align-items:center;gap:10px;
  font-size:1.25rem;
  font-weight:800;
  color:#fff;
  margin-bottom:18px;
}
.footer-brand:hover{color:#fff}
.site-footer .footer-brand .logo-icon{
  background:linear-gradient(135deg,var(--primary),var(--accent));
}
.site-footer p{
  font-size:.86rem;
  color:rgba(255,255,255,.62);
  line-height:1.8;
  margin-bottom:0;
  max-width:340px;
}
.footer-col h4{
  color:#fff;
  font-size:1rem;
  font-weight:700;
  margin-bottom:20px;
  position:relative;
  padding-bottom:10px;
}
.footer-col h4::after{
  content:"";
  position:absolute;
  left:0;bottom:0;
  width:26px;height:3px;
  background:var(--primary);
  border-radius:4px;
}
.footer-col ul{padding:0;margin:0}
.footer-col ul li{margin-bottom:10px}
.footer-col ul a{
  color:rgba(255,255,255,.62);
  font-size:.88rem;
  display:inline-flex;
  align-items:center;
  gap:6px;
  transition:var(--transition);
}
.footer-col ul a i{font-size:.72rem;color:var(--primary)}
.footer-col ul a:hover{
  color:#fff;
  padding-left:4px;
}
.footer-bottom{
  border-top:1px solid rgba(255,255,255,.1);
  margin-top:48px;
  padding:20px 0;
  display:flex;
  align-items:center;
  justify-content:space-between;
  flex-wrap:wrap;gap:8px;
  font-size:.8rem;
  color:rgba(255,255,255,.5);
}

/* 响应式 */
@media(max-width:991px){
  .header-search{max-width:100%;order:3;flex-basis:100%}
  .header-top .container{gap:10px}
  .site-nav{overflow-x:auto;scrollbar-width:none}
  .site-nav::-webkit-scrollbar{display:none}
  .site-nav li a{padding:12px 14px;font-size:.85rem}
  .nav-toggler{display:block}
  .header-actions{display:none}
  .category-hero{padding:64px 0}
  .category-hero h1{font-size:2rem}
  .steps-wrap::before{left:22px}
  .step-content{width:calc(100% - 60px)}
  .step-item:nth-child(odd) .step-content{margin-left:0;margin-right:0}
  .step-item:nth-child(even) .step-content{margin-left:60px}
  .step-item:nth-child(odd) .step-content{margin-left:60px}
  .step-num{left:22px;transform:translateX(-50%)}
  .step-item:nth-child(odd) .step-num{right:auto}
  .step-item:nth-child(even) .step-num{left:22px;right:auto}
  .tip-card{padding:18px}
}
@media(max-width:767px){
  .pt-section{padding-top:56px}
  .pb-section{padding-bottom:56px}
  .section-head .info h2{font-size:1.5rem}
  .category-hero{padding:52px 0}
  .category-hero h1{font-size:1.7rem}
  .header-top{padding:6px 0}
  .brand-logo{font-size:1.1rem}
  .logo-icon{width:34px;height:34px;font-size:.9rem}
  .header-search button{padding:6px 14px;font-size:.78rem}
  .hot-list-item{padding:12px 16px;gap:10px}
  .hot-list-item .info h4{font-size:.9rem}
  .tips-grid{grid-template-columns:1fr}
  .cta-section h2{font-size:1.5rem}
  .btn-outline-light{margin-left:0;margin-top:10px}
  .footer-bottom{justify-content:center;text-align:center}
}
@media(max-width:520px){
  .site-nav li a{padding:11px 10px;font-size:.78rem}
  .site-nav li a i{display:none}
  .category-hero h1{font-size:1.45rem}
  .category-hero p.lead{font-size:.92rem}
  .hero-tags span{font-size:.75rem;padding:4px 10px}
  .step-content{padding:18px}
  .step-content h3{font-size:.95rem}
  .step-content p{font-size:.8rem}
  .article-body{padding:16px}
  .article-body h3{font-size:.95rem}
  .cta-section p{font-size:.9rem}
  .section-head .info p{font-size:.85rem}
}