/* roulang page: index */
:root {
  --color-bg: #0B0A08;
  --color-surface: #15120E;
  --color-surface-2: #1B1712;
  --color-primary: #C8A876;
  --color-primary-dark: #A9864F;
  --color-accent: #5EEAD4;
  --color-text: #F6F3EE;
  --color-muted: #9B9386;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-primary-border: rgba(200, 168, 118, 0.3);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-primary: 0 8px 40px rgba(200, 168, 118, 0.15);
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Source Han Sans SC', 'Microsoft YaHei', 'sans-serif';
  line-height: 1.6;
  overflow-x: hidden;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
  transition: all 0.3s ease;
}
button {
  cursor: pointer;
  border: none;
  background: none;
  font-family: inherit;
}
input {
  outline: none;
  font-family: inherit;
}
.global-nav {
  background: rgba(11, 10, 8, 0.85);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
}
.nav-link {
  position: relative;
  font-size: 0.875rem;
  font-weight: 500;
  padding: 0.5rem 0.25rem;
  color: var(--color-muted);
}
.nav-link:hover {
  color: var(--color-text);
}
.nav-link.active {
  color: var(--color-primary);
}
.nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
}
.search-wrap {
  position: relative;
  width: 100%;
  max-width: 540px;
}
.search-wrap input {
  width: 100%;
  height: 44px;
  padding: 0 20px 0 44px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 0.875rem;
  transition: all 0.3s ease;
}
.search-wrap input::placeholder {
  color: var(--color-muted);
}
.search-wrap input:focus {
  border-color: var(--color-primary-border);
  box-shadow: 0 0 0 4px rgba(200, 168, 118, 0.1);
  background: rgba(255, 255, 255, 0.07);
}
.search-wrap .search-icon {
  position: absolute;
  left: 16px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--color-muted);
  font-size: 0.875rem;
  pointer-events: none;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  border-radius: 999px;
  background: var(--color-primary);
  color: #0B0A08;
  font-weight: 600;
  font-size: 0.875rem;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.btn-primary:hover {
  background: #d8bc8a;
  transform: translateY(-2px);
  box-shadow: var(--shadow-primary);
}
.btn-primary:active {
  transform: scale(0.97);
}
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  border-radius: 999px;
  border: 1px solid rgba(200, 168, 118, 0.4);
  color: var(--color-primary);
  font-weight: 500;
  font-size: 0.875rem;
  transition: all 0.3s ease;
  white-space: nowrap;
  background: transparent;
}
.btn-secondary:hover {
  background: rgba(200, 168, 118, 0.08);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}
.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  border-radius: 999px;
  border: 1px solid rgba(200, 168, 118, 0.3);
  color: var(--color-primary);
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(200, 168, 118, 0.05);
  letter-spacing: 0.02em;
}
.badge-accent {
  display: inline-flex;
  align-items: center;
  padding: 4px 14px;
  border-radius: 999px;
  color: var(--color-accent);
  font-size: 0.75rem;
  font-weight: 600;
  background: rgba(94, 234, 212, 0.08);
  letter-spacing: 0.02em;
}
.section-title {
  font-size: 1.875rem;
  font-weight: 700;
  line-height: 1.25;
  position: relative;
  padding-left: 18px;
  letter-spacing: -0.02em;
  color: var(--color-text);
}
.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 6px;
  width: 4px;
  height: 70%;
  background: var(--color-primary);
  border-radius: 4px;
}
@media (min-width: 640px) {
  .section-title {
    font-size: 2.25rem;
  }
}
.horizontal-scroll {
  display: flex;
  gap: 1.5rem;
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 12px;
}
.horizontal-scroll > * {
  scroll-snap-align: start;
}
.horizontal-scroll::-webkit-scrollbar {
  height: 4px;
}
.horizontal-scroll::-webkit-scrollbar-track {
  background: rgba(255, 255, 255, 0.03);
  border-radius: 4px;
}
.horizontal-scroll::-webkit-scrollbar-thumb {
  background: var(--color-primary);
  border-radius: 4px;
}
.content-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  transition: all 0.3s ease;
  overflow: hidden;
}
.content-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary-border);
  box-shadow: var(--shadow-primary);
}
.content-card .card-img {
  overflow: hidden;
}
.content-card .card-img img {
  transition: transform 0.5s ease;
}
.content-card:hover .card-img img {
  transform: scale(1.05);
}
.hero-background {
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  position: relative;
}
.hero-background::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 10, 8, 0.7), var(--color-bg));
  z-index: 1;
}
.hero-content {
  position: relative;
  z-index: 2;
}
.glow-orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.15;
  pointer-events: none;
}
.glow-orb-1 {
  width: 300px;
  height: 300px;
  background: var(--color-primary);
  top: -80px;
  left: 10%;
  animation: float 12s ease-in-out infinite;
}
.glow-orb-2 {
  width: 200px;
  height: 200px;
  background: var(--color-accent);
  bottom: 20px;
  right: 15%;
  animation: float 16s ease-in-out infinite reverse;
}
@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-30px) scale(1.05); }
}
.cover-frame {
  position: relative;
  border-radius: 16px;
  background: var(--color-surface);
  padding: 12px;
  border: 1px solid var(--color-border);
  transform: rotate(2deg);
  transition: transform 0.4s ease;
}
.cover-frame:hover {
  transform: rotate(0deg);
}
.cover-frame::before {
  content: '';
  position: absolute;
  inset: -8px;
  border: 1px solid rgba(200, 168, 118, 0.15);
  border-radius: 20px;
  z-index: -1;
  transform: rotate(-2deg);
}
.data-item {
  text-align: center;
  padding: 28px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  transition: all 0.3s ease;
}
.data-item:hover {
  border-color: var(--color-primary-border);
  box-shadow: var(--shadow-primary);
}
.data-icon {
  width: 48px;
  height: 48px;
  margin: 0 auto 14px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 12px;
  background: rgba(200, 168, 118, 0.08);
  border: 1px solid rgba(200, 168, 118, 0.15);
  color: var(--color-primary);
}
.stat-number {
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-accent);
  font-variant-numeric: tabular-nums;
}
.info-list-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 20px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  transition: all 0.3s ease;
}
.info-list-card:hover {
  border-color: var(--color-primary-border);
  background: var(--color-surface-2);
}
.info-list-card .date-tag {
  min-width: 54px;
  text-align: center;
  color: var(--color-accent);
  font-weight: 700;
  font-size: 0.875rem;
  font-variant-numeric: tabular-nums;
  line-height: 1.3;
}
.info-list-card .date-tag span {
  display: block;
  font-size: 0.7rem;
  font-weight: 400;
  color: var(--color-muted);
}
.tag-chip {
  display: inline-flex;
  align-items: center;
  padding: 6px 14px;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 500;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  color: var(--color-muted);
  transition: all 0.3s ease;
}
.tag-chip:hover {
  color: var(--color-primary);
  border-color: var(--color-primary-border);
  background: rgba(200, 168, 118, 0.06);
}
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 14px;
  overflow: hidden;
  transition: all 0.3s ease;
}
.faq-item:hover {
  border-color: var(--color-primary-border);
}
.faq-question {
  padding: 20px 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  cursor: pointer;
  font-weight: 600;
  font-size: 1rem;
}
.faq-question .faq-icon {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(200, 168, 118, 0.1);
  color: var(--color-primary);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.active .faq-icon {
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
  padding: 0 24px;
  color: var(--color-muted);
  line-height: 1.75;
  font-size: 0.9375rem;
}
.faq-item.active .faq-answer {
  max-height: 300px;
  padding-bottom: 20px;
}
.testimonial-card {
  min-width: 300px;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 28px;
  position: relative;
  transition: all 0.3s ease;
}
@media (min-width: 1024px) {
  .testimonial-card {
    min-width: 400px;
  }
}
.testimonial-card:hover {
  border-color: var(--color-primary-border);
  box-shadow: var(--shadow-primary);
}
.testimonial-card .quote-mark {
  font-size: 3rem;
  color: var(--color-primary);
  opacity: 0.3;
  line-height: 1;
  font-family: Georgia, serif;
  position: absolute;
  top: 16px;
  right: 24px;
}
.footer-section {
  background: var(--color-surface);
  border-top: 1px solid var(--color-primary-border);
  padding: 60px 0 0;
}
.footer-link {
  color: var(--color-muted);
  font-size: 0.875rem;
  transition: all 0.3s ease;
  display: inline-block;
  padding: 3px 0;
}
.footer-link:hover {
  color: var(--color-primary);
  transform: translateX(4px);
}
.fade-up {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}
.mobile-menu {
  display: none;
}
@media (max-width: 768px) {
  .mobile-menu.open {
    display: block;
  }
  .desktop-nav {
    display: none;
  }
  .section-title {
    padding-left: 14px;
  }
}
.cta-section {
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  position: relative;
}
.cta-section::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(11, 10, 8, 0.92), rgba(11, 10, 8, 0.7));
}
.cta-content {
  position: relative;
  z-index: 2;
}
.news-list-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 16px 0;
  border-bottom: 1px solid var(--color-border);
  transition: all 0.3s ease;
}
.news-list-item:last-child {
  border-bottom: none;
}
.news-list-item:hover .news-title {
  color: var(--color-primary);
}
.news-list-item .news-arrow {
  margin-left: auto;
  color: var(--color-muted);
  opacity: 0;
  transform: translateX(-8px);
  transition: all 0.3s ease;
}
.news-list-item:hover .news-arrow {
  opacity: 1;
  transform: translateX(0);
  color: var(--color-primary);
}
.news-title {
  transition: color 0.3s ease;
  font-weight: 500;
  font-size: 0.9375rem;
  line-height: 1.4;
}
.news-meta {
  font-size: 0.75rem;
  color: var(--color-muted);
}
.sticky-sidebar {
  position: sticky;
  top: 90px;
}
@media (max-width: 1024px) {
  .sticky-sidebar {
    position: static;
  }
}
.section-gap {
  padding: 4rem 0;
}
@media (min-width: 768px) {
  .section-gap {
    padding: 7rem 0;
  }
}
.container-custom {
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 1rem;
}
@media (min-width: 640px) {
  .container-custom {
    padding: 0 1.5rem;
  }
}
@media (min-width: 1024px) {
  .container-custom {
    padding: 0 2rem;
  }
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}
@media (min-width: 1024px) {
  .hero-grid {
    grid-template-columns: 7fr 5fr;
    gap: 3rem;
  }
}

/* roulang page: article */
:root {
  --color-bg: #0B0A08;
  --color-surface: #15120E;
  --color-surface-2: #1B1712;
  --color-primary: #C8A876;
  --color-primary-dark: #A9864F;
  --color-accent: #5EEAD4;
  --color-text: #F6F3EE;
  --color-muted: #9B9386;
  --color-border: rgba(255,255,255,0.08);
  --color-primary-border: rgba(200,168,118,0.3);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.4);
  --shadow-primary: 0 8px 40px rgba(200,168,118,0.15);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Source Han Sans SC', 'Microsoft YaHei', sans-serif;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

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

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

button {
  border: none;
  background: none;
  cursor: pointer;
}

input {
  font-family: inherit;
}

.container-custom {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 1rem;
  padding-right: 1rem;
}

@media (min-width: 640px) {
  .container-custom {
    padding-left: 1.5rem;
    padding-right: 1.5rem;
  }
}

@media (min-width: 1024px) {
  .container-custom {
    padding-left: 2rem;
    padding-right: 2rem;
  }
}

/* 导航 */
.global-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 10, 8, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}

.search-wrap {
  position: relative;
  display: flex;
  align-items: center;
  height: 44px;
  max-width: 560px;
  width: 100%;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  border-radius: 999px;
  transition: border-color 0.3s, box-shadow 0.3s;
}

.search-wrap:focus-within {
  border-color: var(--color-primary-border);
  box-shadow: 0 0 0 4px rgba(200, 168, 118, 0.1);
}

.search-icon {
  position: absolute;
  left: 16px;
  color: var(--color-muted);
  font-size: 14px;
  pointer-events: none;
}

.search-wrap input {
  width: 100%;
  height: 100%;
  background: transparent;
  border: none;
  outline: none;
  padding: 0 20px 0 42px;
  color: var(--color-text);
  font-size: 14px;
}

.search-wrap input::placeholder {
  color: var(--color-muted);
}

.desktop-nav .nav-link {
  position: relative;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-muted);
  padding-bottom: 4px;
  transition: color 0.3s;
  white-space: nowrap;
}

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

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

.desktop-nav .nav-link.active::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
}

.mobile-nav-link {
  display: block;
  padding: 12px 8px;
  color: var(--color-muted);
  font-size: 15px;
  font-weight: 500;
  border-radius: 8px;
  transition: all 0.3s;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--color-primary);
  background: rgba(200, 168, 118, 0.08);
}

/* 按钮 */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  background: var(--color-primary);
  color: #0B0A08;
  font-weight: 700;
  font-size: 14px;
  border-radius: 999px;
  transition: transform 0.3s, box-shadow 0.3s, opacity 0.3s;
  white-space: nowrap;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(200, 168, 118, 0.25);
  opacity: 0.92;
}

.btn-primary:active {
  transform: scale(0.97);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 44px;
  padding: 0 28px;
  border: 1px solid var(--color-primary-border);
  color: var(--color-primary);
  font-weight: 600;
  font-size: 14px;
  border-radius: 999px;
  transition: background 0.3s, transform 0.3s;
  white-space: nowrap;
}

.btn-outline:hover {
  background: rgba(200, 168, 118, 0.1);
  transform: translateY(-2px);
}

.btn-outline:active {
  transform: scale(0.97);
}

/* 徽章 */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 600;
  color: var(--color-primary);
  border: 1px solid var(--color-primary-border);
  padding: 6px 14px;
  border-radius: 999px;
  background: rgba(200, 168, 118, 0.08);
  letter-spacing: 0.02em;
}

.tag {
  display: inline-block;
  font-size: 13px;
  font-weight: 500;
  color: var(--color-muted);
  border: 1px solid var(--color-border);
  padding: 6px 16px;
  border-radius: 999px;
  transition: all 0.3s;
}

.tag:hover {
  color: var(--color-primary);
  border-color: var(--color-primary-border);
  background: rgba(200, 168, 118, 0.06);
}

/* 面包屑 */
.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: center;
  font-size: 13px;
  color: var(--color-muted);
}

.breadcrumb a {
  color: var(--color-muted);
  transition: color 0.3s;
}

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

.breadcrumb .sep {
  color: rgba(255, 255, 255, 0.2);
}

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

/* 文章头部 */
.article-hero {
  position: relative;
  padding: 80px 0 100px;
  background-size: cover;
  background-position: center;
  border-bottom: 1px solid var(--color-border);
}

.article-hero .overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 10, 8, 0.82), var(--color-bg));
}

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

.article-title {
  font-size: clamp(1.75rem, 4vw, 3rem);
  font-weight: 800;
  line-height: 1.2;
  letter-spacing: -0.02em;
  max-width: 860px;
  margin: 16px 0 24px;
  color: var(--color-text);
}

/* 文章信息条 */
.article-meta-strip {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  max-width: 640px;
}

@media (min-width: 768px) {
  .article-meta-strip {
    grid-template-columns: repeat(4, 1fr);
  }
}

.meta-card {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--color-border);
  border-radius: 12px;
  padding: 12px 16px;
}

.meta-card .label {
  font-size: 12px;
  color: var(--color-muted);
}

.meta-card .value {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  margin-top: 2px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.meta-card .value i {
  color: var(--color-primary);
  margin-right: 6px;
}

/* 正文卡 */
.article-body-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 24px;
  padding: 32px;
  box-shadow: var(--shadow-card);
  margin-top: -56px;
  position: relative;
  z-index: 3;
}

@media (min-width: 768px) {
  .article-body-card {
    padding: 56px;
  }
}

.article-content {
  font-size: 16px;
  line-height: 1.9;
  color: var(--color-text);
}

@media (min-width: 768px) {
  .article-content {
    font-size: 17px;
  }
}

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

.article-content h2 {
  font-size: 24px;
  font-weight: 700;
  margin: 40px 0 16px;
  padding-left: 14px;
  border-left: 3px solid var(--color-primary);
}

.article-content h3 {
  font-size: 20px;
  font-weight: 600;
  margin: 32px 0 12px;
}

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

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

.article-content img {
  border-radius: 16px;
  margin: 24px 0;
  width: 100%;
  height: auto;
}

.article-content blockquote {
  border-left: 4px solid var(--color-primary);
  background: rgba(200, 168, 118, 0.08);
  padding: 16px 20px;
  border-radius: 0 16px 16px 0;
  margin: 24px 0;
  color: var(--color-muted);
  font-style: italic;
}

.article-content a {
  color: var(--color-primary);
  text-decoration: underline;
  text-underline-offset: 4px;
}

.article-content code {
  background: rgba(255, 255, 255, 0.08);
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.9em;
}

/* 相关阅读 */
.section-title {
  font-size: 28px;
  font-weight: 700;
  position: relative;
  padding-left: 16px;
  color: var(--color-text);
}

.section-title::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  height: 24px;
  width: 4px;
  border-radius: 4px;
  background: var(--color-primary);
}

.related-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 20px;
  overflow: hidden;
  transition: transform 0.3s, border-color 0.3s, box-shadow 0.3s;
  display: block;
}

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

.related-card .cover {
  aspect-ratio: 16 / 9;
  overflow: hidden;
}

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

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

/* CTA */
.cta-section {
  position: relative;
  padding: 80px 0;
  background: linear-gradient(180deg, var(--color-bg), var(--color-surface-2));
  border-top: 1px solid var(--color-border);
}

.cta-box {
  background: var(--color-surface);
  border: 1px solid var(--color-primary-border);
  border-radius: 24px;
  padding: 48px 32px;
  text-align: center;
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}

.cta-box::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(11, 10, 8, 0.78);
  z-index: 0;
}

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

/* 页脚 */
.footer-section {
  background: #080706;
  border-top: 1px solid var(--color-primary-border);
  padding-top: 56px;
}

.footer-link {
  color: var(--color-muted);
  font-size: 14px;
  transition: color 0.3s, padding-left 0.3s;
}

.footer-link:hover {
  color: var(--color-primary);
  padding-left: 4px;
}

/* 动效 */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.in-view {
  opacity: 1;
  transform: none;
}

@media (max-width: 639px) {
  .desktop-nav {
    display: none;
  }
}

/* roulang page: category1 */
:root {
            --color-bg: #0B0A08;
            --color-surface: #15120E;
            --color-surface-2: #1B1712;
            --color-primary: #C8A876;
            --color-primary-dark: #A9864F;
            --color-accent: #5EEAD4;
            --color-text: #F6F3EE;
            --color-muted: #9B9386;
            --color-border: rgba(255, 255, 255, 0.08);
            --color-primary-border: rgba(200, 168, 118, 0.3);
            --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
            --shadow-primary: 0 8px 40px rgba(200, 168, 118, 0.15);
        }
        * {
            box-sizing: border-box;
        }
        html {
            scroll-behavior: smooth;
        }
        body {
            font-family: 'PingFang SC', 'HarmonyOS Sans SC', 'Source Han Sans SC', 'Microsoft YaHei', sans-serif;
            background: var(--color-bg);
            color: var(--color-text);
            line-height: 1.6;
            margin: 0;
        }
        img {
            max-width: 100%;
            display: block;
        }
        a {
            text-decoration: none;
            color: inherit;
        }
        button {
            cursor: pointer;
            font-family: inherit;
        }
        .container-custom {
            max-width: 1280px;
            margin: 0 auto;
            padding-left: 1rem;
            padding-right: 1rem;
        }
        @media (min-width: 640px) {
            .container-custom {
                padding-left: 1.5rem;
                padding-right: 1.5rem;
            }
        }
        @media (min-width: 1024px) {
            .container-custom {
                padding-left: 2rem;
                padding-right: 2rem;
            }
        }

        /* 全局导航 */
        .global-nav {
            position: sticky;
            top: 0;
            z-index: 50;
            background: rgba(11, 10, 8, 0.85);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--color-border);
        }
        .search-wrap {
            position: relative;
            max-width: 32rem;
            width: 100%;
        }
        .search-wrap i {
            position: absolute;
            left: 1rem;
            top: 50%;
            transform: translateY(-50%);
            color: var(--color-muted);
            font-size: 0.9rem;
            z-index: 2;
        }
        .search-wrap input {
            width: 100%;
            height: 3rem;
            background: rgba(255, 255, 255, 0.05);
            border: 1px solid var(--color-border);
            border-radius: 9999px;
            padding-left: 2.75rem;
            padding-right: 1.5rem;
            color: var(--color-text);
            outline: none;
            font-size: 0.9rem;
            transition: all 0.3s ease;
        }
        .search-wrap input:focus {
            border-color: var(--color-primary-border);
            box-shadow: 0 0 0 4px rgba(200, 168, 118, 0.15);
        }
        .search-wrap input::placeholder {
            color: var(--color-muted);
        }
        .desktop-nav .nav-link {
            position: relative;
            font-size: 0.95rem;
            color: var(--color-muted);
            transition: color 0.3s ease;
            padding-bottom: 0.25rem;
            font-weight: 500;
        }
        .desktop-nav .nav-link:hover {
            color: var(--color-text);
        }
        .desktop-nav .nav-link.active {
            color: var(--color-primary);
        }
        .desktop-nav .nav-link.active::after {
            content: '';
            position: absolute;
            bottom: -0.25rem;
            left: 0;
            width: 100%;
            height: 2px;
            background: var(--color-primary);
            border-radius: 2px;
        }
        .nav-link-mobile {
            display: block;
            padding: 0.65rem 1rem;
            font-size: 0.95rem;
            color: var(--color-muted);
            border-radius: 0.75rem;
            transition: all 0.3s ease;
            border: 1px solid transparent;
        }
        .nav-link-mobile:hover {
            color: var(--color-text);
            background: rgba(255, 255, 255, 0.03);
        }
        .nav-link-mobile.active {
            color: var(--color-primary);
            border-color: var(--color-primary-border);
            background: rgba(200, 168, 118, 0.06);
        }

        /* 按钮 */
        .btn-primary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 3rem;
            padding: 0 1.75rem;
            background: var(--color-primary);
            color: #0B0A08;
            font-weight: 600;
            border-radius: 9999px;
            transition: all 0.3s ease;
            font-size: 0.95rem;
            white-space: nowrap;
            border: none;
        }
        .btn-primary:hover {
            background: #d9bc8a;
            transform: translateY(-2px);
            box-shadow: var(--shadow-primary);
        }
        .btn-primary:active {
            transform: scale(0.98);
        }
        .btn-secondary {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            height: 3rem;
            padding: 0 1.75rem;
            border: 1px solid var(--color-primary-border);
            color: var(--color-primary);
            border-radius: 9999px;
            transition: all 0.3s ease;
            font-size: 0.95rem;
            background: transparent;
            white-space: nowrap;
        }
        .btn-secondary:hover {
            background: rgba(200, 168, 118, 0.1);
            transform: translateY(-2px);
        }
        .btn-secondary:active {
            transform: scale(0.98);
        }

        /* 卡片 */
        .card-base {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 1rem;
            transition: all 0.3s ease;
        }
        .card-base:hover {
            transform: translateY(-4px);
            border-color: var(--color-primary-border);
            box-shadow: var(--shadow-primary);
        }

        /* 徽章 */
        .badge {
            display: inline-flex;
            align-items: center;
            border: 1px solid rgba(200, 168, 118, 0.3);
            color: var(--color-primary);
            font-size: 0.75rem;
            font-weight: 600;
            padding: 0.25rem 0.75rem;
            border-radius: 9999px;
            background: rgba(200, 168, 118, 0.04);
            transition: all 0.3s ease;
        }
        .badge:hover {
            background: rgba(200, 168, 118, 0.1);
            border-color: rgba(200, 168, 118, 0.5);
        }
        .badge-accent {
            color: var(--color-accent);
            border-color: rgba(94, 234, 212, 0.3);
            background: rgba(94, 234, 212, 0.04);
        }

        /* 区块 */
        .section-pad {
            padding: 5rem 0;
        }
        @media (min-width: 768px) {
            .section-pad {
                padding: 7rem 0;
            }
        }
        .section-title {
            font-size: 1.75rem;
            font-weight: 700;
            line-height: 1.25;
            margin-bottom: 2rem;
            padding-left: 1rem;
            border-left: 3px solid var(--color-primary);
        }
        @media (min-width: 640px) {
            .section-title {
                font-size: 2.25rem;
            }
        }

        /* FAQ */
        .faq-item {
            background: var(--color-surface);
            border: 1px solid var(--color-border);
            border-radius: 1rem;
            transition: all 0.3s ease;
            overflow: hidden;
        }
        .faq-item.open {
            border-color: var(--color-primary-border);
            background: var(--color-surface-2);
            box-shadow: var(--shadow-card);
        }
        .faq-question {
            width: 100%;
            display: flex;
            justify-content: space-between;
            align-items: center;
            padding: 1.25rem 1.5rem;
            font-weight: 600;
            color: var(--color-text);
            text-align: left;
            background: none;
            border: none;
            font-size: 1rem;
            cursor: pointer;
            transition: color 0.3s ease;
        }
        .faq-question:hover {
            color: var(--color-primary);
        }
        .faq-icon {
            transition: transform 0.3s ease;
            color: var(--color-primary);
            font-size: 0.9rem;
            flex-shrink: 0;
            margin-left: 1rem;
        }
        .faq-item.open .faq-icon {
            transform: rotate(180deg);
        }
        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
        }
        .faq-answer-inner {
            padding: 0 1.5rem 1.25rem;
            color: var(--color-muted);
            line-height: 1.75;
            font-size: 0.925rem;
        }

        /* 页脚 */
        .footer-section {
            background: var(--color-surface);
            border-top: 1px solid var(--color-primary-border);
        }
        .footer-link {
            color: var(--color-muted);
            font-size: 0.9rem;
            transition: color 0.3s ease;
        }
        .footer-link:hover {
            color: var(--color-primary);
        }

        /* 分页 */
        .page-num {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 2.5rem;
            height: 2.5rem;
            border-radius: 9999px;
            border: 1px solid var(--color-border);
            color: var(--color-muted);
            transition: all 0.3s ease;
            font-size: 0.9rem;
        }
        .page-num:hover {
            border-color: var(--color-primary-border);
            color: var(--color-primary);
            background: rgba(200, 168, 118, 0.05);
        }
        .page-num.active {
            background: var(--color-primary);
            color: #0B0A08;
            font-weight: 600;
            border-color: var(--color-primary);
            box-shadow: var(--shadow-primary);
        }

        /* 光斑动画 */
        @keyframes pulse-glow {
            0%,
            100% {
                opacity: 0.2;
                transform: scale(1);
            }
            50% {
                opacity: 0.45;
                transform: scale(1.15);
            }
        }
        .glow-orb {
            position: absolute;
            border-radius: 50%;
            filter: blur(70px);
            pointer-events: none;
            animation: pulse-glow 7s ease-in-out infinite;
        }

        /* reveal */
        .reveal {
            opacity: 0;
            transform: translateY(24px);
            transition: opacity 0.7s ease, transform 0.7s ease;
        }
        .reveal.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 图片 hover */
        .img-zoom {
            overflow: hidden;
        }
        .img-zoom img {
            transition: transform 0.5s ease;
        }
        .img-zoom:hover img {
            transform: scale(1.05);
        }

        /* 流程节点 */
        .step-line {
            position: relative;
        }
        .step-line::before {
            content: '';
            position: absolute;
            left: 1.25rem;
            top: 3.5rem;
            bottom: -2rem;
            width: 1px;
            background: linear-gradient(180deg, var(--color-primary-border), transparent);
        }
        .step-dot {
            width: 2.5rem;
            height: 2.5rem;
            border-radius: 9999px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            border: 1px solid var(--color-primary-border);
            color: var(--color-primary);
            font-weight: 700;
            font-size: 0.9rem;
            background: rgba(200, 168, 118, 0.06);
            flex-shrink: 0;
        }
        @media (max-width: 639px) {
            .step-line::before {
                left: 1.25rem;
                bottom: -1.5rem;
            }
        }

/* roulang page: category2 */
:root {
  --color-bg: #0B0A08;
  --color-surface: #15120E;
  --color-surface-2: #1B1712;
  --color-primary: #C8A876;
  --color-primary-dark: #A9864F;
  --color-accent: #5EEAD4;
  --color-text: #F6F3EE;
  --color-muted: #9B9386;
  --color-border: rgba(255, 255, 255, 0.08);
  --color-primary-border: rgba(200, 168, 118, 0.3);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.4);
  --shadow-primary: 0 8px 40px rgba(200, 168, 118, 0.15);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: "PingFang SC", "HarmonyOS Sans SC", "Source Han Sans SC", "Microsoft YaHei", sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.7;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; transition: all 0.3s ease; }
img { max-width: 100%; display: block; }
input, button, textarea { font-family: inherit; }
ul, ol { list-style: none; }

.container-custom {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}
@media (min-width: 640px) {
  .container-custom { padding: 0 1.5rem; }
}
@media (min-width: 1024px) {
  .container-custom { padding: 0 2rem; }
}

.border-outline { border-color: var(--color-border); }

/* ---------- 按钮 ---------- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  border-radius: 9999px;
  background: var(--color-primary);
  color: #0B0A08;
  font-weight: 700;
  font-size: 15px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
  letter-spacing: 0.01em;
}
.btn-primary:hover {
  background: #DCBA84;
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(200, 168, 118, 0.25);
}
.btn-primary:active {
  transform: translateY(0) scale(0.97);
}
.btn-primary:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}
.btn-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 48px;
  padding: 0 28px;
  border-radius: 9999px;
  background: transparent;
  color: var(--color-primary);
  font-weight: 600;
  font-size: 15px;
  border: 1px solid var(--color-primary-border);
  cursor: pointer;
  transition: all 0.3s ease;
  white-space: nowrap;
}
.btn-outline:hover {
  background: rgba(200, 168, 118, 0.1);
  border-color: var(--color-primary);
  transform: translateY(-2px);
}
.btn-outline:active {
  transform: translateY(0) scale(0.97);
}
.btn-outline:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* ---------- 导航 ---------- */
.global-nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 10, 8, 0.85);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-border);
}

.search-wrap {
  position: relative;
  display: flex;
  align-items: center;
  max-width: 560px;
  height: 44px;
  margin: 0 auto;
}
.search-wrap .search-icon {
  position: absolute;
  left: 18px;
  color: var(--color-muted);
  font-size: 14px;
  z-index: 2;
  pointer-events: none;
}
.search-wrap input {
  width: 100%;
  height: 100%;
  padding: 0 20px 0 46px;
  border-radius: 9999px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 14px;
  outline: none;
  transition: border-color 0.3s, box-shadow 0.3s, background 0.3s;
}
.search-wrap input::placeholder {
  color: var(--color-muted);
  opacity: 0.9;
}
.search-wrap input:hover {
  background: rgba(255, 255, 255, 0.08);
}
.search-wrap:focus-within input {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 4px rgba(200, 168, 118, 0.1);
  background: rgba(255, 255, 255, 0.07);
}

.desktop-nav .nav-link {
  position: relative;
  color: var(--color-muted);
  font-size: 15px;
  font-weight: 500;
  padding: 8px 2px;
  white-space: nowrap;
  transition: color 0.3s;
}
.desktop-nav .nav-link:hover {
  color: var(--color-text);
}
.desktop-nav .nav-link.active {
  color: var(--color-primary);
}
.desktop-nav .nav-link.active::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--color-primary);
  border-radius: 2px;
}

.mobile-nav {
  border-top: 1px solid var(--color-border);
  background: rgba(11, 10, 8, 0.96);
  padding: 16px 1rem;
}
.mobile-nav .nav-link {
  display: block;
  padding: 12px 4px;
  color: var(--color-muted);
  font-size: 15px;
  font-weight: 500;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}
.mobile-nav .nav-link:hover {
  color: var(--color-text);
}
.mobile-nav .nav-link.active {
  color: var(--color-primary);
}
.mobile-nav .btn-primary {
  margin-top: 12px;
  width: 100%;
}

/* ---------- 通用区块 ---------- */
.section-block {
  padding: 72px 0;
}
@media (min-width: 768px) {
  .section-block { padding: 100px 0; }
}

.section-title {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin-bottom: 36px;
  position: relative;
  padding-left: 18px;
}
.section-title::before {
  content: "";
  position: absolute;
  left: 0;
  top: 4px;
  width: 4px;
  height: calc(100% - 8px);
  background: var(--color-primary);
  border-radius: 4px;
  box-shadow: 0 0 18px rgba(200, 168, 118, 0.4);
}
@media (min-width: 640px) {
  .section-title { font-size: 36px; }
}

.section-subtitle {
  color: var(--color-muted);
  font-size: 16px;
  line-height: 1.8;
  margin-bottom: 32px;
  max-width: 640px;
}

.text-primary { color: var(--color-primary); }
.text-muted { color: var(--color-muted); }
.text-cream { color: var(--color-text); }
.text-accent { color: var(--color-accent); }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 6px 16px;
  border-radius: 9999px;
  border: 1px solid var(--color-primary-border);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 600;
  background: rgba(200, 168, 118, 0.06);
  letter-spacing: 0.02em;
}
.badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
  display: inline-block;
  animation: pulse-dot 2s ease-in-out infinite;
}
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.8); }
}

.tag {
  display: inline-flex;
  align-items: center;
  padding: 5px 14px;
  border-radius: 9999px;
  border: 1px solid var(--color-primary-border);
  color: var(--color-primary);
  font-size: 13px;
  font-weight: 500;
  background: transparent;
  transition: all 0.3s ease;
  cursor: default;
}
.tag:hover {
  background: rgba(200, 168, 118, 0.1);
  border-color: var(--color-primary);
}
.tag-accent {
  color: var(--color-accent);
  border-color: rgba(94, 234, 212, 0.25);
}
.tag-accent:hover {
  background: rgba(94, 234, 212, 0.08);
  border-color: var(--color-accent);
}

/* ---------- Hero ---------- */
.hero-section {
  position: relative;
  padding: 80px 0 72px;
  background-image: url('/assets/images/backpic/back-1.png');
  background-size: cover;
  background-position: center;
  overflow: hidden;
}
.hero-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 10, 8, 0.75), var(--color-bg) 90%);
  pointer-events: none;
}
.hero-glow {
  position: absolute;
  width: 320px;
  height: 320px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(200, 168, 118, 0.15), transparent 70%);
  pointer-events: none;
  animation: float-glow 8s ease-in-out infinite;
}
.hero-glow-1 { top: 40px; left: 10%; }
.hero-glow-2 { bottom: 20px; right: 8%; animation-delay: 4s; }
@keyframes float-glow {
  0%, 100% { transform: translateY(0) scale(1); opacity: 0.6; }
  50% { transform: translateY(-24px) scale(1.08); opacity: 1; }
}

.hero-section .container-custom {
  position: relative;
  z-index: 2;
}

.hero-title {
  font-size: 40px;
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.03em;
  margin: 20px 0 16px;
}
@media (min-width: 640px) {
  .hero-title { font-size: 48px; }
}
@media (min-width: 1024px) {
  .hero-title { font-size: 60px; }
}

.hero-sub {
  font-size: 17px;
  color: var(--color-muted);
  max-width: 480px;
  line-height: 1.8;
  margin-bottom: 28px;
}
@media (min-width: 1024px) {
  .hero-sub { font-size: 18px; }
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
}

.hero-visual {
  position: relative;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
  margin-top: 48px;
}
@media (min-width: 1024px) {
  .hero-visual { margin-top: 0; }
}

.cover-frame {
  position: relative;
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-card);
}
.cover-frame::before {
  content: "";
  position: absolute;
  inset: 0;
  border: 1px solid var(--color-primary-border);
  border-radius: 16px;
  z-index: 2;
  pointer-events: none;
}
.cover-frame img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.cover-frame:hover img {
  transform: scale(1.03);
}
.cover-offset {
  position: absolute;
  inset: 16px -16px -16px 16px;
  border: 1px solid var(--color-primary-border);
  border-radius: 16px;
  z-index: -1;
  opacity: 0.5;
  background: rgba(200, 168, 118, 0.03);
}

.hero-meta {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 24px;
  flex-wrap: wrap;
}
.hero-meta .meta-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--color-muted);
}
.hero-meta .meta-item i {
  color: var(--color-primary);
  font-size: 15px;
}

/* ---------- 特色卡片 ---------- */
.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 28px 24px;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  height: 100%;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary-border);
  box-shadow: var(--shadow-primary);
}
.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: rgba(200, 168, 118, 0.1);
  border: 1px solid var(--color-primary-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  font-size: 20px;
  margin-bottom: 20px;
  transition: all 0.3s ease;
}
.feature-card:hover .feature-icon {
  background: var(--color-primary);
  color: #0B0A08;
  transform: scale(1.05);
}
.feature-card h3 {
  font-size: 20px;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--color-text);
}
.feature-card p {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.75;
}

/* ---------- 专题卡片 ---------- */
.topic-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  overflow: hidden;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
  margin-bottom: 24px;
}
.topic-card:hover {
  transform: translateY(-4px);
  border-color: var(--color-primary-border);
  box-shadow: var(--shadow-primary);
}
.topic-card .topic-media {
  position: relative;
  overflow: hidden;
  flex-shrink: 0;
}
.topic-card .topic-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.3s ease;
}
.topic-card:hover .topic-media img {
  transform: scale(1.05);
}
.topic-card .topic-media .topic-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  z-index: 2;
}
.topic-card .topic-content {
  padding: 24px;
  flex: 1;
}
.topic-card .topic-content h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-text);
  line-height: 1.4;
}
.topic-card .topic-content p {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.7;
  margin-bottom: 16px;
}
.topic-card .topic-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 14px;
  color: var(--color-muted);
  flex-wrap: wrap;
  gap: 8px;
}
.topic-card .topic-meta .topic-time {
  color: var(--color-muted);
  display: flex;
  align-items: center;
  gap: 6px;
}
.topic-card .topic-meta .topic-time i {
  color: var(--color-primary);
  font-size: 13px;
}
.topic-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--color-primary);
  font-size: 14px;
  font-weight: 600;
}
.topic-link:hover {
  color: var(--color-text);
  gap: 10px;
}
.topic-link i {
  font-size: 12px;
}
@media (min-width: 768px) {
  .topic-card {
    flex-direction: row;
  }
  .topic-card .topic-media {
    width: 280px;
    min-height: 200px;
  }
}

/* ---------- 侧栏 ---------- */
.sidebar {
  position: sticky;
  top: 100px;
  align-self: flex-start;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.sidebar-widget {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 24px 20px;
}
.sidebar-widget h3 {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--color-border);
}
.sidebar-widget ul li a {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 8px;
  color: var(--color-muted);
  font-size: 15px;
  border-radius: 8px;
  transition: all 0.25s ease;
}
.sidebar-widget ul li a::before {
  content: "";
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--color-primary);
  opacity: 0.4;
  transition: opacity 0.25s;
}
.sidebar-widget ul li a:hover {
  color: var(--color-primary);
  background: rgba(200, 168, 118, 0.05);
}
.sidebar-widget ul li a:hover::before {
  opacity: 1;
}
.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.recommend-card {
  display: flex;
  gap: 14px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--color-border);
}
.recommend-card:last-child {
  border-bottom: none;
  padding-bottom: 0;
}
.recommend-card img {
  width: 72px;
  height: 56px;
  border-radius: 10px;
  object-fit: cover;
  flex-shrink: 0;
}
.recommend-card .rc-content h4 {
  font-size: 14px;
  font-weight: 600;
  color: var(--color-text);
  line-height: 1.4;
  margin-bottom: 4px;
}
.recommend-card .rc-content h4:hover {
  color: var(--color-primary);
}
.recommend-card .rc-content span {
  font-size: 12px;
  color: var(--color-muted);
}

/* ---------- 适用场景 ---------- */
.scenario-card {
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 28px 24px;
  transition: all 0.3s ease;
  height: 100%;
}
.scenario-card:hover {
  border-color: var(--color-primary-border);
  transform: translateY(-4px);
  box-shadow: var(--shadow-primary);
}
.scenario-icon {
  width: 44px;
  height: 44px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(200, 168, 118, 0.1);
  border: 1px solid var(--color-primary-border);
  color: var(--color-primary);
  font-size: 18px;
  margin-bottom: 18px;
}
.scenario-card h3 {
  font-size: 19px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text);
}
.scenario-card p {
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.75;
}

/* ---------- 流程步骤 ---------- */
.steps-wrap {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
  margin-top: 12px;
}
@media (min-width: 640px) {
  .steps-wrap { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .steps-wrap { grid-template-columns: repeat(4, 1fr); }
}
.step-item {
  position: relative;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 28px 22px;
  transition: all 0.3s ease;
}
.step-item:hover {
  border-color: var(--color-primary-border);
  transform: translateY(-4px);
}
.step-num {
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #0B0A08;
  font-weight: 800;
  font-size: 15px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 16px;
  box-shadow: 0 0 20px rgba(200, 168, 118, 0.3);
}
.step-item h3 {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 8px;
}
.step-item p {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.7;
}
.step-arrow {
  position: absolute;
  top: 32px;
  right: -16px;
  color: var(--color-primary);
  font-size: 14px;
  display: none;
  z-index: 2;
}
@media (min-width: 1024px) {
  .step-arrow { display: block; }
}

/* ---------- 数据统计 ---------- */
.stats-panel {
  background: linear-gradient(135deg, var(--color-surface-2), var(--color-surface));
  border: 1px solid var(--color-border);
  border-radius: 16px;
  padding: 40px 32px;
  position: relative;
  overflow: hidden;
}
.stats-panel::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--color-primary), transparent);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 32px;
}
@media (min-width: 768px) {
  .stats-grid { grid-template-columns: repeat(4, 1fr); }
}
.stat-item {
  text-align: center;
}
.stat-item .stat-num {
  font-size: 42px;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
}
.stat-item .stat-num .stat-suffix {
  font-size: 24px;
  margin-left: 2px;
}
.stat-item .stat-label {
  font-size: 14px;
  color: var(--color-muted);
  margin-top: 8px;
}
.stat-item .stat-desc {
  font-size: 13px;
  color: var(--color-muted);
  opacity: 0.7;
  margin-top: 4px;
}

/* ---------- FAQ ---------- */
.faq-list {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 16px;
  margin-bottom: 16px;
  overflow: hidden;
  transition: border-color 0.3s, box-shadow 0.3s;
}
.faq-item:hover {
  border-color: var(--color-primary-border);
}
.faq-item.open {
  border-color: var(--color-primary-border);
  box-shadow: var(--shadow-primary);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--color-text);
  text-align: left;
  transition: color 0.3s;
}
.faq-question:hover {
  color: var(--color-primary);
}
.faq-arrow {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary);
  flex-shrink: 0;
  transition: transform 0.3s, border-color 0.3s, background 0.3s;
}
.faq-item.open .faq-arrow {
  transform: rotate(180deg);
  background: var(--color-primary);
  color: #0B0A08;
  border-color: var(--color-primary);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}
.faq-answer-inner {
  padding: 0 24px 20px;
  font-size: 15px;
  color: var(--color-muted);
  line-height: 1.75;
}

/* ---------- CTA ---------- */
.cta-section {
  position: relative;
  padding: 80px 0;
  overflow: hidden;
  background-image: url('/assets/images/backpic/back-3.png');
  background-size: cover;
  background-position: center;
}
.cta-section::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(11, 10, 8, 0.85), rgba(11, 10, 8, 0.95));
  pointer-events: none;
}
.cta-panel {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
  margin: 0 auto;
  padding: 16px;
}
.cta-panel .cta-line {
  width: 60px;
  height: 2px;
  background: var(--color-primary);
  margin: 0 auto 24px;
  border-radius: 2px;
}
.cta-panel h2 {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  letter-spacing: -0.02em;
  margin-bottom: 20px;
}
@media (min-width: 640px) {
  .cta-panel h2 { font-size: 44px; }
}
.cta-panel p {
  font-size: 17px;
  color: var(--color-muted);
  line-height: 1.8;
  max-width: 520px;
  margin: 0 auto 32px;
}
.cta-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px;
}

/* ---------- 页脚 ---------- */
.footer-section {
  background: #0D0B08;
  border-top: 1px solid var(--color-primary-border);
  padding-top: 60px;
}
.footer-link {
  color: var(--color-muted);
  font-size: 14px;
  transition: color 0.3s, padding-left 0.3s;
}
.footer-link:hover {
  color: var(--color-primary);
  padding-left: 4px;
}

/* ---------- 滚动展示 ---------- */
.reveal-on-scroll {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal-on-scroll.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ---------- 响应式微调 ---------- */
@media (max-width: 1023px) {
  .sidebar {
    position: static;
    margin-top: 48px;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }
  .sidebar .sidebar-widget:last-child {
    grid-column: 1 / -1;
  }
}
@media (max-width: 640px) {
  .sidebar {
    grid-template-columns: 1fr;
  }
  .hero-section {
    padding: 56px 0 48px;
  }
  .hero-title {
    font-size: 32px;
  }
  .section-block {
    padding: 56px 0;
  }
  .cta-panel h2 {
    font-size: 28px;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .topic-card .topic-media {
    min-height: 180px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal-on-scroll {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .hero-glow {
    animation: none;
  }
}