/* roulang page: index */
:root {
  --bg: #0A0E1F;
  --surface: #151B38;
  --surface-2: #1C2348;
  --primary: #8B6FF0;
  --accent: #54D6C9;
  --gold: #F4C766;
  --text: #EDEFFC;
  --text-secondary: #AAB2D5;
  --border: rgba(255,255,255,0.10);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --radius-pill: 999px;
  --shadow: 0 16px 40px rgba(10, 14, 31, 0.55);
  --shadow-hover: 0 0 0 1px rgba(244,199,102,0.25), 0 20px 50px rgba(139,111,240,0.22);
  --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  background: var(--bg);
  background-image: radial-gradient(rgba(255,255,255,0.02) 0.5px, transparent 0.5px);
  background-size: 18px 18px;
  color: var(--text);
  line-height: 1.75;
  margin: 0;
  padding: 0;
  overflow-x: hidden;
}

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

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

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

button, input {
  font-family: inherit;
}

.container-custom {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

.btn-custom {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 12px 30px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 15px;
  border: none;
  cursor: pointer;
  transition: all 0.3s ease;
  line-height: 1.2;
}

.btn-primary-grad {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  box-shadow: 0 8px 24px rgba(139, 111, 240, 0.3);
}

.btn-primary-grad:hover, .btn-primary-grad:focus {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(139, 111, 240, 0.45), 0 0 0 3px rgba(244, 199, 102, 0.25);
  outline: none;
}

.btn-outline-custom {
  background: transparent;
  color: var(--text);
  border: 1px solid rgba(255, 255, 255, 0.25);
}

.btn-outline-custom:hover, .btn-outline-custom:focus {
  border-color: var(--gold);
  color: var(--gold);
  transform: translateY(-2px);
  outline: none;
}

.btn-dark-solid {
  background: var(--bg);
  color: var(--text);
  border: none;
  min-height: 48px;
  padding: 12px 32px;
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 600;
  font-size: 15px;
  transition: all 0.3s;
  cursor: pointer;
}

.btn-dark-solid:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 32px rgba(10, 14, 31, 0.4);
  color: var(--gold);
}

.section-pad {
  padding: 96px 0;
}

.section-head {
  text-align: center;
  margin-bottom: 56px;
}

.section-head .section-tag {
  display: inline-block;
  background: rgba(139, 111, 240, 0.12);
  color: var(--primary);
  border-radius: var(--radius-pill);
  padding: 6px 20px;
  font-size: 13px;
  letter-spacing: 0.06em;
  margin-bottom: 16px;
  font-weight: 600;
}

.section-head h2 {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 700;
  margin-bottom: 14px;
  letter-spacing: 0.02em;
}

.section-head p {
  color: var(--text-secondary);
  font-size: 15px;
  max-width: 680px;
  margin: 0 auto;
  line-height: 1.8;
}

/* ===== 导航面板 ===== */
.site-header {
  padding: 20px 0 8px;
  position: relative;
  z-index: 1000;
}

.nav-panel {
  background: rgba(20, 26, 54, 0.82);
  background-image: radial-gradient(rgba(255, 255, 255, 0.03) 0.5px, transparent 0.5px);
  background-size: 12px 12px;
  border-radius: 20px;
  padding: 10px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 8px 32px rgba(10, 14, 31, 0.5);
  position: relative;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1.2;
  white-space: nowrap;
}

.nav-logo i {
  color: var(--gold);
  font-size: 22px;
}

.nav-logo .logo-highlight {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 6px;
  height: 40px;
  padding: 0 18px;
  border-radius: var(--radius-pill);
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  background: transparent;
  border: 1px solid transparent;
  transition: all 0.3s ease;
  line-height: 40px;
}

.nav-link i {
  font-size: 15px;
}

.nav-link:hover {
  background: rgba(139, 111, 240, 0.15);
  color: var(--text);
}

.nav-link.active {
  background: rgba(139, 111, 240, 0.15);
  color: var(--text);
  border-color: rgba(139, 111, 240, 0.25);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  min-height: 40px;
  padding: 0 24px;
  border-radius: var(--radius-pill);
  background: linear-gradient(135deg, var(--primary), var(--accent));
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 4px 16px rgba(139, 111, 240, 0.3);
  white-space: nowrap;
}

.nav-cta:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(139, 111, 240, 0.45), 0 0 0 2px rgba(244, 199, 102, 0.3);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  width: 40px;
  height: 40px;
  padding: 8px;
  cursor: pointer;
  border-radius: 8px;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 5px auto;
  border-radius: 2px;
  transition: all 0.3s;
}

/* ===== Hero ===== */
.hero-section {
  position: relative;
  padding: 80px 0 96px;
  background: url('/assets/images/backpic/back-1.png') center center / cover no-repeat;
  overflow: hidden;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: radial-gradient(circle at 70% 20%, rgba(139, 111, 240, 0.25), transparent 60%),
              radial-gradient(circle at 20% 80%, rgba(84, 214, 201, 0.12), transparent 50%);
}

.hero-section::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(rgba(255, 255, 255, 0.04) 0.5px, transparent 0.5px);
  background-size: 20px 20px;
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 820px;
  margin: 0 auto;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.3;
  letter-spacing: 0.02em;
  margin-bottom: 20px;
  color: var(--text);
}

.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-subtitle {
  font-size: 17px;
  color: var(--text-secondary);
  max-width: 620px;
  margin: 0 auto 36px;
  line-height: 1.8;
}

.hero-actions {
  display: flex;
  justify-content: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.hero-badges {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
}

.data-badge {
  background: rgba(20, 26, 54, 0.8);
  border: 1px solid rgba(139, 111, 240, 0.25);
  border-radius: var(--radius-pill);
  padding: 8px 18px;
  font-size: 13px;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  backdrop-filter: blur(4px);
}

.data-badge i {
  color: var(--gold);
  font-size: 14px;
}

.data-badge strong {
  color: var(--gold);
  font-weight: 700;
  font-size: 15px;
}

/* ===== 功能分组 ===== */
.functions-section {
  padding: 96px 0;
}

.function-card {
  background: linear-gradient(145deg, #141A36, #1C2348);
  border-radius: var(--radius-lg);
  padding: 32px;
  height: 100%;
  transition: all 0.3s ease;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.06);
  position: relative;
  overflow: hidden;
}

.function-card::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, rgba(139, 111, 240, 0.1), transparent 70%);
  border-radius: 50%;
}

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

.function-card .card-icon {
  width: 48px;
  height: 48px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(139, 111, 240, 0.15), rgba(84, 214, 201, 0.15));
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 20px;
  margin-bottom: 20px;
}

.function-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.function-card p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 20px;
}

.card-link {
  color: var(--accent);
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-weight: 500;
}

.card-link i {
  transition: transform 0.3s;
}

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

/* ===== 使用场景 ===== */
.scenarios-section {
  padding: 96px 0;
  background: rgba(21, 27, 56, 0.3);
}

.scenario-block {
  display: flex;
  align-items: center;
  gap: 56px;
  margin-bottom: 80px;
}

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

.scenario-block.reverse {
  flex-direction: row-reverse;
}

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

.scenario-media::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: var(--radius-lg);
  background: linear-gradient(180deg, transparent 60%, rgba(10, 14, 31, 0.4));
  pointer-events: none;
}

.scenario-media img {
  width: 100%;
  height: 340px;
  object-fit: cover;
  display: block;
}

.scenario-body {
  flex: 1;
}

.scenario-body .scenario-label {
  display: inline-block;
  font-size: 13px;
  color: var(--gold);
  background: rgba(244, 199, 102, 0.08);
  padding: 4px 16px;
  border-radius: var(--radius-pill);
  margin-bottom: 14px;
  font-weight: 500;
  letter-spacing: 0.04em;
}

.scenario-body h3 {
  font-size: clamp(1.1rem, 1.6vw, 1.35rem);
  font-weight: 700;
  margin-bottom: 16px;
  line-height: 1.5;
}

.scenario-body p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 24px;
}

.scenario-link {
  color: var(--accent);
  font-weight: 600;
  font-size: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  border-bottom: 1px solid transparent;
  padding-bottom: 2px;
}

.scenario-link:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.scenario-link i {
  transition: transform 0.3s;
}

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

/* ===== 成功案例 ===== */
.cases-section {
  padding: 96px 0;
}

.case-card {
  background: linear-gradient(145deg, #141A36, #1C2348);
  border-radius: var(--radius-lg);
  padding: 28px;
  transition: all 0.3s ease;
  box-shadow: var(--shadow);
  border: 1px solid rgba(255, 255, 255, 0.06);
  height: 100%;
  display: flex;
  flex-direction: column;
}

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

.case-card .case-image {
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 20px;
}

.case-card .case-image img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s;
}

.case-card:hover .case-image img {
  transform: scale(1.03);
}

.case-card h4 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 8px;
  line-height: 1.4;
}

.case-card p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.7;
  margin-bottom: 20px;
  flex-grow: 1;
}

.case-metrics {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  margin-top: auto;
}

.case-metric {
  background: rgba(244, 199, 102, 0.08);
  border-radius: var(--radius-sm);
  padding: 6px 14px;
  font-size: 12px;
  color: var(--text-secondary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.case-metric strong {
  color: var(--gold);
  font-size: 15px;
  font-weight: 700;
  margin-right: 2px;
}

.case-card-horizontal .case-media {
  width: 160px;
  height: 120px;
  flex-shrink: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 0;
}

.case-card-horizontal .case-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* ===== 价格 ===== */
.pricing-section {
  padding: 96px 0;
  background: rgba(21, 27, 56, 0.3);
}

.pricing-card {
  background: linear-gradient(145deg, #141A36, #1C2348);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  text-align: center;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all 0.3s ease;
  position: relative;
  height: 100%;
  display: flex;
  flex-direction: column;
}

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

.pricing-card.featured {
  border-color: rgba(244, 199, 102, 0.4);
  box-shadow: 0 0 0 1px rgba(244, 199, 102, 0.15), 0 20px 50px rgba(139, 111, 240, 0.25);
}

.pricing-card.featured .pricing-badge {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--gold), #d9a545);
  color: #1a1a1a;
  font-size: 12px;
  font-weight: 700;
  padding: 4px 18px;
  border-radius: var(--radius-pill);
  white-space: nowrap;
  box-shadow: 0 4px 12px rgba(244, 199, 102, 0.3);
}

.pricing-name {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 10px;
}

.pricing-price {
  font-size: 40px;
  font-weight: 700;
  line-height: 1.1;
  margin-bottom: 24px;
  color: var(--text);
}

.pricing-price small {
  font-size: 14px;
  color: var(--text-secondary);
  font-weight: 400;
}

.pricing-features {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  text-align: left;
  flex-grow: 1;
}

.pricing-features li {
  padding: 9px 0;
  font-size: 14px;
  color: var(--text-secondary);
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  display: flex;
  align-items: center;
  gap: 10px;
}

.pricing-features li i {
  color: var(--accent);
  font-size: 12px;
  flex-shrink: 0;
}

/* ===== 资讯列表 ===== */
.news-section {
  padding: 96px 0;
}

.news-card {
  display: flex;
  gap: 20px;
  background: linear-gradient(145deg, #141A36, #1C2348);
  border-radius: var(--radius-md);
  padding: 16px 20px;
  margin-bottom: 16px;
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.06);
  align-items: center;
}

.news-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateX(6px);
}

.news-thumb {
  width: 96px;
  height: 72px;
  flex-shrink: 0;
  border-radius: var(--radius-sm);
  overflow: hidden;
  background: linear-gradient(135deg, var(--primary), var(--accent));
}

.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border: none;
}

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

.news-title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  line-height: 1.4;
}

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

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

.news-summary {
  font-size: 14px;
  color: var(--text-secondary);
  margin-bottom: 6px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  line-height: 1.5;
}

.news-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  color: var(--text-secondary);
}

.news-tag {
  color: var(--gold);
  background: rgba(244, 199, 102, 0.08);
  padding: 2px 12px;
  border-radius: var(--radius-pill);
  font-weight: 500;
  font-size: 12px;
}

.news-meta time {
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.news-meta time i {
  font-size: 11px;
}

.news-empty {
  text-align: center;
  padding: 56px 24px;
  background: rgba(21, 27, 56, 0.5);
  border-radius: var(--radius-lg);
  color: var(--text-secondary);
  font-size: 15px;
  border: 1px dashed rgba(255, 255, 255, 0.12);
}

/* ===== FAQ ===== */
.faq-section {
  padding: 96px 0;
  background: rgba(21, 27, 56, 0.3);
}

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

.faq-item {
  background: linear-gradient(145deg, #141A36, #1C2348);
  border-radius: var(--radius-md);
  margin-bottom: 12px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  transition: all 0.3s ease;
}

.faq-item:hover {
  border-color: rgba(139, 111, 240, 0.3);
}

.faq-btn {
  width: 100%;
  padding: 20px 24px;
  background: none;
  border: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 16px;
  font-weight: 500;
  color: var(--text);
  cursor: pointer;
  text-align: left;
  transition: all 0.3s;
  border-radius: var(--radius-md);
}

.faq-btn:hover {
  color: var(--gold);
}

.faq-btn .faq-icon-plus {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(139, 111, 240, 0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: all 0.3s;
  font-size: 13px;
  color: var(--primary);
  margin-left: 12px;
}

.faq-btn[aria-expanded="true"] .faq-icon-plus {
  transform: rotate(45deg);
  background: rgba(139, 111, 240, 0.25);
  color: var(--accent);
}

.faq-body {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
}

/* ===== CTA ===== */
.cta-section {
  padding: 96px 0;
}

.cta-banner {
  border-radius: var(--radius-lg);
  padding: 72px 48px;
  text-align: center;
  position: relative;
  overflow: hidden;
  background: url('/assets/images/backpic/back-2.webp') center center / cover no-repeat;
}

.cta-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(139, 111, 240, 0.88), rgba(84, 214, 201, 0.88));
}

.cta-banner h2, .cta-banner p, .cta-banner a {
  position: relative;
  z-index: 1;
}

.cta-banner h2 {
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  font-weight: 700;
  margin-bottom: 14px;
  color: #fff;
  line-height: 1.4;
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.92);
  margin-bottom: 28px;
  font-size: 15px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #070A18;
  padding: 64px 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

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

.footer-brand .footer-logo {
  font-size: 20px;
  font-weight: 700;
  color: var(--text);
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-brand .footer-logo i {
  color: var(--gold);
  font-size: 24px;
}

.footer-brand .footer-logo span {
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 20px;
}

.footer-qr {
  width: 88px;
  height: 88px;
  background: linear-gradient(145deg, rgba(139, 111, 240, 0.12), rgba(84, 214, 201, 0.12));
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  color: var(--text-secondary);
}

.footer-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 20px;
  letter-spacing: 0.04em;
}

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

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

.footer-links a {
  color: var(--text-secondary);
  font-size: 14px;
  transition: all 0.3s;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.footer-links a i {
  font-size: 10px;
  color: var(--primary);
}

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

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding: 20px 0;
  text-align: center;
  color: var(--text-secondary);
  font-size: 13px;
}

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

.footer-bottom a:hover {
  color: var(--gold);
}

/* ===== 响应式断点 ===== */
@media (max-width: 991px) {
  .section-pad {
    padding: 72px 0;
  }

  .nav-menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: rgba(20, 26, 54, 0.96);
    border-radius: 16px;
    flex-direction: column;
    padding: 16px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(255, 255, 255, 0.08);
    z-index: 100;
  }

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

  .nav-link {
    width: 100%;
    justify-content: center;
    height: 44px;
  }

  .nav-toggle {
    display: block;
  }

  .nav-cta {
    display: none;
  }

  .hero-section {
    padding: 64px 0 80px;
  }

  .scenario-block, .scenario-block.reverse {
    flex-direction: column;
    gap: 32px;
  }

  .scenario-media img {
    height: 280px;
  }

  .case-card-horizontal .case-media {
    width: 140px;
    height: 100px;
  }

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

  .pricing-card.featured {
    transform: scale(1);
  }
}

@media (max-width: 767px) {
  .container-custom {
    padding: 0 16px;
  }

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

  .nav-panel {
    padding: 8px 14px;
  }

  .nav-logo {
    font-size: 15px;
  }

  .nav-logo i {
    font-size: 18px;
  }

  .hero-section {
    padding: 56px 0 64px;
  }

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

  .hero-actions .btn-custom {
    width: 100%;
    max-width: 280px;
  }

  .hero-badges {
    gap: 8px;
  }

  .hero-title {
    font-size: clamp(1.75rem, 6vw, 2.25rem);
  }

  .hero-subtitle {
    font-size: 15px;
  }

  .function-card {
    padding: 24px;
  }

  .case-card-horizontal {
    flex-direction: column;
    align-items: flex-start;
  }

  .case-card-horizontal .case-media {
    width: 100%;
    height: 180px;
  }

  .news-card {
    flex-direction: column;
    padding: 14px;
    gap: 12px;
  }

  .news-thumb {
    width: 100%;
    height: 140px;
  }

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

  .news-title {
    white-space: normal;
  }

  .news-summary {
    -webkit-line-clamp: 2;
  }

  .pricing-card {
    padding: 28px 24px;
  }

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

  .cta-banner .btn-dark-solid {
    width: 100%;
    max-width: 280px;
    justify-content: center;
  }

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

  .faq-btn {
    font-size: 15px;
    padding: 16px 18px;
  }

  .faq-body {
    padding: 0 18px 16px;
    font-size: 14px;
  }

  .scenario-media img {
    height: 220px;
  }
}

@media (max-width: 520px) {
  .hero-badges {
    flex-direction: column;
    align-items: center;
    width: 100%;
  }

  .data-badge {
    width: 100%;
    justify-content: center;
  }

  .section-head h2 {
    font-size: 1.4rem;
  }

  .section-head p {
    font-size: 14px;
  }

  .case-card .case-image img {
    height: 200px;
  }

  .news-meta {
    flex-wrap: wrap;
    gap: 8px;
  }

  .footer-bottom {
    font-size: 12px;
    padding: 16px 0;
  }
}

/* roulang page: article */
:root {
  --bg-primary: #0A0E1F;
  --bg-secondary: #070A18;
  --bg-card-start: #141A36;
  --bg-card-end: #1C2348;
  --bg-input: #1A2142;
  --purple: #8B6FF0;
  --cyan: #54D6C9;
  --gold: #F4C766;
  --text-primary: #EDEFFC;
  --text-secondary: #AAB2D5;
  --border-subtle: rgba(255, 255, 255, 0.10);
  --radius-lg: 24px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --shadow-card: 0 16px 40px rgba(10, 14, 31, 0.55);
  --shadow-hover: 0 0 0 1px rgba(244, 199, 102, 0.25), 0 20px 50px rgba(139, 111, 240, 0.22);
  --space-section: 96px;
  --space-section-mobile: 56px;
  --container-pad: 24px;
  --container-pad-mobile: 16px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", "Helvetica Neue", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-primary);
  background-color: var(--bg-primary);
  background-image:
    radial-gradient(1px 1px at 12% 18%, rgba(255, 255, 255, 0.35), transparent),
    radial-gradient(1px 1px at 68% 8%, rgba(255, 255, 255, 0.28), transparent),
    radial-gradient(0.8px 0.8px at 38% 52%, rgba(255, 255, 255, 0.24), transparent),
    radial-gradient(1px 1px at 82% 38%, rgba(255, 255, 255, 0.20), transparent),
    radial-gradient(0.6px 0.6px at 15% 78%, rgba(255, 255, 255, 0.26), transparent),
    radial-gradient(1px 1px at 92% 72%, rgba(255, 255, 255, 0.18), transparent);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
}

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

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

img {
  max-width: 100%;
  height: auto;
  border-radius: var(--radius-md);
}

button,
input {
  font-family: inherit;
}

.container-custom {
  max-width: 1200px;
  margin: 0 auto;
  padding-left: var(--container-pad);
  padding-right: var(--container-pad);
  width: 100%;
}

/* ===== Header & Nav ===== */
.site-header {
  position: relative;
  z-index: 100;
  padding: 18px 0 8px;
}

.nav-panel {
  display: flex;
  align-items: center;
  gap: 18px;
  background: rgba(20, 26, 54, 0.82);
  border: 1px solid rgba(139, 111, 240, 0.28);
  border-radius: 20px;
  padding: 10px 20px;
  box-shadow: 0 10px 30px rgba(10, 14, 31, 0.45);
  backdrop-filter: blur(8px);
  position: relative;
  overflow: hidden;
}

.nav-panel::before {
  content: "";
  position: absolute;
  top: -50%;
  left: -30%;
  width: 160%;
  height: 200%;
  background: radial-gradient(circle at 20% 20%, rgba(139, 111, 240, 0.06), transparent 60%);
  pointer-events: none;
}

.nav-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  white-space: nowrap;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

.nav-logo i {
  color: var(--gold);
  font-size: 18px;
  filter: drop-shadow(0 0 6px rgba(244, 199, 102, 0.5));
}

.logo-highlight {
  background: linear-gradient(120deg, var(--purple), var(--cyan));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-left: 2px;
}

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

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border-subtle);
  border-radius: 8px;
  width: 42px;
  height: 42px;
  padding: 8px;
  cursor: pointer;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  margin-left: auto;
}

.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  width: 100%;
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin: 0;
  padding: 0;
  flex-wrap: wrap;
}

.nav-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 40px;
  padding: 0 16px;
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 14px;
  font-weight: 500;
  border: 1px solid transparent;
  transition: background 0.25s ease, color 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

.nav-link i {
  font-size: 13px;
  color: var(--purple);
  transition: color 0.25s ease;
}

.nav-link:hover {
  background: rgba(139, 111, 240, 0.15);
  color: var(--text-primary);
  border-color: rgba(139, 111, 240, 0.3);
}

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

.nav-link.active {
  background: rgba(139, 111, 240, 0.2);
  color: var(--text-primary);
  border-color: rgba(139, 111, 240, 0.4);
  box-shadow: 0 0 14px rgba(139, 111, 240, 0.18);
}

.nav-link.active i {
  color: var(--gold);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 42px;
  padding: 0 22px;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--purple), var(--cyan));
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  border: 1px solid transparent;
  white-space: nowrap;
  margin-left: auto;
  flex-shrink: 0;
  transition: transform 0.25s ease, box-shadow 0.25s ease, border-color 0.25s ease;
}

.nav-cta:hover {
  color: #fff;
  border-color: var(--gold);
  box-shadow: 0 0 20px rgba(244, 199, 102, 0.35);
  transform: translateY(-2px);
}

/* ===== 面包屑 ===== */
.article-breadcrumb {
  padding: 36px 0 12px;
  font-size: 13px;
}

.breadcrumb-inner {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  color: var(--text-secondary);
}

.breadcrumb-inner a {
  color: var(--text-secondary);
  transition: color 0.2s ease;
}

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

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

.crumb-current {
  color: var(--text-primary);
  max-width: 300px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* ===== 文章页 ===== */
.article-main {
  padding-bottom: var(--space-section);
  min-height: 60vh;
}

.article-card {
  background: linear-gradient(145deg, var(--bg-card-start), var(--bg-card-end));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
  padding: 44px 48px;
  margin-bottom: 48px;
}

.article-detail-header {
  max-width: 760px;
  margin: 0 auto 36px;
  text-align: left;
}

.article-detail-header h1 {
  font-size: clamp(1.65rem, 4vw, 2.35rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: 0.02em;
  color: var(--text-primary);
  margin: 0 0 18px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  align-items: center;
  font-size: 13px;
  color: var(--text-secondary);
  margin-bottom: 22px;
}

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

.article-meta i {
  color: var(--gold);
  font-size: 12px;
}

.article-description {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-secondary);
  padding: 18px 22px;
  background: rgba(10, 14, 31, 0.4);
  border-left: 3px solid var(--purple);
  border-radius: 0 12px 12px 0;
  margin: 0 0 8px;
}

.article-content {
  max-width: 760px;
  margin: 0 auto;
  font-size: 16px;
  line-height: 1.8;
  color: rgba(237, 239, 252, 0.92);
  word-wrap: break-word;
}

.article-content p {
  margin: 0 0 1.5em;
}

.article-content h2 {
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
  font-weight: 700;
  margin: 2em 0 1em;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  line-height: 1.4;
}

.article-content h3 {
  font-size: clamp(1.1rem, 1.8vw, 1.3rem);
  font-weight: 700;
  margin: 1.8em 0 0.8em;
  color: var(--text-primary);
}

.article-content img {
  border-radius: var(--radius-md);
  margin: 1.5em 0;
  box-shadow: var(--shadow-card);
}

.article-content blockquote {
  padding: 18px 24px;
  background: rgba(139, 111, 240, 0.08);
  border-left: 4px solid var(--purple);
  border-radius: 0 12px 12px 0;
  margin: 1.8em 0;
  color: var(--text-secondary);
  font-style: normal;
}

.article-content blockquote p {
  margin: 0;
}

.article-content ul,
.article-content ol {
  margin: 0 0 1.5em;
  padding-left: 1.6em;
}

.article-content li {
  margin-bottom: 0.4em;
}

.article-content a {
  color: var(--cyan);
  border-bottom: 1px solid rgba(84, 214, 201, 0.3);
  transition: color 0.2s ease, border-color 0.2s ease;
}

.article-content a:hover {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 1.5em 0;
  font-size: 15px;
}

.article-content table th,
.article-content table td {
  padding: 12px 16px;
  border: 1px solid var(--border-subtle);
  text-align: left;
}

.article-content table th {
  background: rgba(139, 111, 240, 0.12);
  color: var(--text-primary);
  font-weight: 600;
}

.article-content code {
  background: rgba(139, 111, 240, 0.12);
  color: var(--cyan);
  padding: 2px 8px;
  border-radius: 6px;
  font-size: 0.9em;
}

/* 文章底部导航 */
.article-nav {
  max-width: 760px;
  margin: 48px auto 0;
  padding-top: 28px;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
}

.btn-return {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 44px;
  padding: 0 22px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-secondary);
  border: 1px solid var(--border-subtle);
  background: rgba(10, 14, 31, 0.4);
  transition: all 0.25s ease;
}

.btn-return:hover {
  color: var(--gold);
  border-color: rgba(244, 199, 102, 0.4);
  background: rgba(244, 199, 102, 0.06);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(10, 14, 31, 0.4);
}

/* 相关推荐 */
.related-section {
  max-width: 760px;
  margin: 0 auto;
}

.section-head {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
}

.section-head h2 {
  font-size: clamp(1.3rem, 2.5vw, 1.7rem);
  font-weight: 700;
  margin: 0;
  color: var(--text-primary);
  letter-spacing: 0.02em;
}

.section-head::after {
  content: "";
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, rgba(139, 111, 240, 0.4), transparent);
}

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

.related-card {
  display: flex;
  flex-direction: column;
  background: linear-gradient(145deg, var(--bg-card-start), var(--bg-card-end));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.related-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(244, 199, 102, 0.2);
}

.related-card img {
  width: 100%;
  height: 120px;
  object-fit: cover;
  border-radius: 0;
}

.related-card-body {
  padding: 16px 18px 18px;
}

.related-card-body h3 {
  font-size: 15px;
  font-weight: 600;
  margin: 0 0 10px;
  color: var(--text-primary);
  line-height: 1.5;
}

.related-card-body span {
  font-size: 13px;
  color: var(--gold);
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.related-card-body span::after {
  content: "\f061";
  font-family: "Font Awesome 6 Free";
  font-weight: 900;
  font-size: 11px;
  transition: transform 0.2s ease;
}

.related-card:hover .related-card-body span::after {
  transform: translateX(4px);
}

/* 内容未找到 */
.article-not-found {
  max-width: 600px;
  margin: 80px auto;
  text-align: center;
  padding: 60px 40px;
  background: linear-gradient(145deg, var(--bg-card-start), var(--bg-card-end));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-card);
}

.nf-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(139, 111, 240, 0.15);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 28px;
  color: var(--gold);
  animation: floatStar 2.5s ease-in-out infinite;
}

@keyframes floatStar {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(-6px); opacity: 0.7; }
}

.article-not-found h2 {
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 14px;
  color: var(--text-primary);
}

.article-not-found p {
  color: var(--text-secondary);
  font-size: 15px;
  line-height: 1.8;
  margin-bottom: 28px;
}

.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 48px;
  padding: 0 28px;
  border-radius: 999px;
  background: linear-gradient(120deg, var(--purple), var(--cyan));
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  border: 1px solid transparent;
  transition: box-shadow 0.25s ease, transform 0.25s ease, border-color 0.25s ease;
}

.btn-primary:hover {
  color: #fff;
  border-color: var(--gold);
  box-shadow: 0 0 24px rgba(244, 199, 102, 0.35);
  transform: translateY(-2px);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border-subtle);
  padding: 70px 0 30px;
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  top: -80px;
  left: 50%;
  transform: translateX(-50%);
  width: 600px;
  height: 160px;
  background: radial-gradient(ellipse at center, rgba(139, 111, 240, 0.12), transparent 70%);
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}

.footer-brand .footer-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 20px;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 18px;
}

.footer-brand .footer-logo i {
  color: var(--gold);
  font-size: 17px;
  filter: drop-shadow(0 0 6px rgba(244, 199, 102, 0.4));
}

.footer-brand p {
  color: var(--text-secondary);
  font-size: 14px;
  line-height: 1.8;
  margin-bottom: 20px;
  max-width: 320px;
}

.footer-qr {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 120px;
  height: 120px;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-sm);
  background: rgba(10, 14, 31, 0.5);
  color: var(--text-secondary);
  font-size: 12px;
  text-align: center;
  line-height: 1.6;
}

.footer-col .footer-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

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

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

.footer-links a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--text-secondary);
  font-size: 14px;
  transition: color 0.2s ease, padding-left 0.2s ease;
}

.footer-links a i {
  color: var(--purple);
  font-size: 11px;
  transition: color 0.2s ease;
}

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

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

.footer-bottom {
  border-top: 1px solid var(--border-subtle);
  padding-top: 28px;
  text-align: center;
  color: var(--text-secondary);
  font-size: 13px;
  letter-spacing: 0.02em;
}

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

.footer-bottom a:hover {
  color: var(--gold);
}

/* ===== 响应式 ===== */
@media (max-width: 991px) {
  .nav-panel {
    flex-wrap: wrap;
    border-radius: 18px;
  }

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

  .nav-menu {
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    gap: 6px;
    background: rgba(10, 14, 31, 0.6);
    border-radius: 14px;
    padding: 12px;
    margin-top: 10px;
  }

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

  .nav-link {
    width: 100%;
    height: 44px;
    border-radius: 10px;
  }

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

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

@media (max-width: 767px) {
  :root {
    --space-section: var(--space-section-mobile);
    --container-pad: var(--container-pad-mobile);
  }

  .container-custom {
    padding-left: var(--container-pad);
    padding-right: var(--container-pad);
  }

  .article-card {
    padding: 28px 20px;
    border-radius: 18px;
  }

  .article-detail-header h1 {
    font-size: clamp(1.4rem, 5vw, 1.8rem);
  }

  .article-description {
    font-size: 14px;
    padding: 14px 16px;
  }

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

  .article-nav {
    flex-direction: column;
  }

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

  .related-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }

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

  .footer-bottom {
    font-size: 12px;
    line-height: 1.8;
  }
}

@media (max-width: 520px) {
  .nav-panel {
    padding: 10px 14px;
  }

  .nav-logo {
    font-size: 17px;
  }

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

  .article-breadcrumb {
    padding-top: 24px;
  }

  .crumb-current {
    max-width: 180px;
  }

  .article-meta {
    gap: 10px;
    font-size: 12px;
  }

  .related-card img {
    height: 110px;
  }
}

@media (min-width: 992px) {
  .nav-menu {
    margin-left: 16px;
  }
}

/* roulang page: category1 */
:root {
      --bg-deep: #0A0E1F;
      --bg-card: #151B38;
      --bg-card-grad: linear-gradient(145deg, #141A36 0%, #1C2348 100%);
      --accent-purple: #8B6FF0;
      --accent-cyan: #54D6C9;
      --accent-gold: #F4C766;
      --text-main: #EDEFFC;
      --text-sub: #AAB2D5;
      --border-soft: rgba(255, 255, 255, 0.10);
      --radius-xl: 24px;
      --radius-lg: 16px;
      --radius-md: 12px;
      --radius-pill: 999px;
      --shadow-card: 0 16px 40px rgba(10, 14, 31, 0.55);
      --shadow-hover: 0 0 0 1px rgba(244, 199, 102, 0.25), 0 20px 50px rgba(139, 111, 240, 0.22);
      --font-main: "PingFang SC", "Microsoft YaHei", "Noto Sans CJK SC", sans-serif;
    }

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

    html {
      scroll-behavior: smooth;
    }

    body {
      font-family: var(--font-main);
      background-color: var(--bg-deep);
      color: var(--text-main);
      line-height: 1.75;
      -webkit-font-smoothing: antialiased;
      overflow-x: hidden;
    }

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

    a {
      color: inherit;
      text-decoration: none;
      transition: color 0.25s ease;
    }

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

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

    .container-custom {
      max-width: 1200px;
      margin: 0 auto;
      padding-left: 24px;
      padding-right: 24px;
    }

    /* ===== Header & Nav ===== */
    .site-header {
      position: sticky;
      top: 0;
      z-index: 1050;
      padding: 16px 0 12px;
      background: linear-gradient(180deg, rgba(10, 14, 31, 0.9) 0%, rgba(10, 14, 31, 0.75) 100%);
      backdrop-filter: blur(18px);
      -webkit-backdrop-filter: blur(18px);
    }

    .nav-panel {
      display: flex;
      align-items: center;
      justify-content: space-between;
      gap: 16px;
      background: rgba(20, 26, 54, 0.82);
      border: 1px solid rgba(139, 111, 240, 0.22);
      border-radius: 20px;
      padding: 10px 20px;
      box-shadow: 0 8px 28px rgba(10, 14, 31, 0.6);
      position: relative;
      overflow: hidden;
    }

    .nav-panel::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        radial-gradient(1px 1px at 20% 30%, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(1px 1px at 60% 70%, rgba(244, 199, 102, 0.25), transparent),
        radial-gradient(1px 1px at 85% 20%, rgba(84, 214, 201, 0.2), transparent);
      pointer-events: none;
      opacity: 0.6;
    }

    .nav-panel>* {
      position: relative;
      z-index: 1;
    }

    .nav-logo {
      display: inline-flex;
      align-items: center;
      gap: 10px;
      font-size: 1.25rem;
      font-weight: 700;
      letter-spacing: 0.02em;
      color: var(--text-main);
      white-space: nowrap;
    }

    .nav-logo i {
      font-size: 1.3rem;
      color: var(--accent-gold);
      text-shadow: 0 0 16px rgba(244, 199, 102, 0.45);
    }

    .nav-logo .logo-highlight {
      color: var(--accent-cyan);
    }

    .nav-toggle {
      display: none;
      flex-direction: column;
      justify-content: center;
      gap: 5px;
      width: 44px;
      height: 44px;
      background: rgba(139, 111, 240, 0.12);
      border: 1px solid var(--border-soft);
      border-radius: 12px;
      padding: 10px;
      cursor: pointer;
      transition: background 0.3s;
    }

    .nav-toggle span {
      display: block;
      height: 2px;
      width: 22px;
      margin: 0 auto;
      background: var(--text-main);
      border-radius: 2px;
      transition: transform 0.3s, opacity 0.3s;
    }

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

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

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

    .nav-menu {
      display: flex;
      align-items: center;
      gap: 8px;
      list-style: none;
      margin: 0;
      padding: 0;
      flex-wrap: wrap;
    }

    .nav-menu li {
      margin: 0;
    }

    .nav-link {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      height: 40px;
      padding: 0 18px;
      border-radius: 999px;
      font-size: 0.95rem;
      font-weight: 500;
      color: var(--text-sub);
      background: transparent;
      border: 1px solid transparent;
      transition: all 0.3s ease;
      white-space: nowrap;
    }

    .nav-link i {
      font-size: 0.9rem;
    }

    .nav-link:hover {
      color: var(--text-main);
      background: rgba(139, 111, 240, 0.15);
      border-color: rgba(139, 111, 240, 0.3);
    }

    .nav-link.active {
      color: var(--text-main);
      background: rgba(139, 111, 240, 0.18);
      border-color: rgba(139, 111, 240, 0.4);
      box-shadow: 0 0 18px rgba(139, 111, 240, 0.2);
    }

    .nav-cta {
      display: inline-flex;
      align-items: center;
      gap: 7px;
      height: 44px;
      padding: 0 22px;
      border-radius: 999px;
      font-size: 0.95rem;
      font-weight: 600;
      color: #fff;
      white-space: nowrap;
      background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
      border: 1px solid transparent;
      box-shadow: 0 8px 24px rgba(139, 111, 240, 0.35);
      transition: all 0.3s ease;
    }

    .nav-cta:hover {
      color: var(--bg-deep);
      background: var(--accent-gold);
      border-color: var(--accent-gold);
      transform: translateY(-2px);
      box-shadow: 0 12px 30px rgba(244, 199, 102, 0.35);
    }

    /* ===== 小型分类 Hero ===== */
    .category-hero {
      position: relative;
      padding: 96px 0 72px;
      background:
        linear-gradient(180deg, rgba(10, 14, 31, 0.82) 0%, rgba(10, 14, 31, 0.92) 100%),
        url('/assets/images/backpic/back-1.png') center / cover no-repeat;
      border-bottom: 1px solid rgba(139, 111, 240, 0.15);
    }

    .category-hero::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        radial-gradient(1px 1px at 15% 35%, rgba(255, 255, 255, 0.5), transparent),
        radial-gradient(1px 1px at 45% 20%, rgba(244, 199, 102, 0.4), transparent),
        radial-gradient(1px 1px at 75% 60%, rgba(84, 214, 201, 0.35), transparent),
        radial-gradient(1px 1px at 90% 25%, rgba(255, 255, 255, 0.3), transparent),
        radial-gradient(ellipse at 78% 18%, rgba(139, 111, 240, 0.18), transparent 60%),
        radial-gradient(ellipse at 20% 85%, rgba(84, 214, 201, 0.1), transparent 55%);
      pointer-events: none;
    }

    .category-hero .container-custom {
      position: relative;
      z-index: 1;
    }

    .cat-label {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.85rem;
      font-weight: 600;
      letter-spacing: 0.08em;
      text-transform: none;
      color: var(--accent-gold);
      background: rgba(244, 199, 102, 0.1);
      border: 1px solid rgba(244, 199, 102, 0.25);
      padding: 6px 16px;
      border-radius: 999px;
      margin-bottom: 20px;
    }

    .category-hero h1 {
      font-size: clamp(2rem, 5vw, 3.2rem);
      font-weight: 700;
      letter-spacing: 0.02em;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .category-hero .hero-sub {
      font-size: 1.05rem;
      line-height: 1.75;
      color: var(--text-sub);
      max-width: 680px;
      margin-bottom: 32px;
    }

    .hero-badges {
      display: flex;
      flex-wrap: wrap;
      gap: 12px;
      margin-bottom: 36px;
    }

    .badge-item {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      background: rgba(20, 26, 54, 0.75);
      border: 1px solid rgba(139, 111, 240, 0.35);
      border-radius: 999px;
      padding: 8px 16px;
      font-size: 0.85rem;
      color: var(--text-sub);
    }

    .badge-item strong,
    .badge-item .num {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--accent-gold);
    }

    .category-hero .btn-primary {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      height: 48px;
      padding: 0 28px;
      border-radius: 999px;
      font-size: 1rem;
      font-weight: 600;
      color: #fff;
      background: linear-gradient(135deg, var(--accent-purple), var(--accent-cyan));
      border: none;
      box-shadow: 0 8px 26px rgba(139, 111, 240, 0.35);
      transition: all 0.3s ease;
    }

    .category-hero .btn-primary:hover {
      transform: translateY(-3px);
      box-shadow: 0 0 0 1px rgba(244, 199, 102, 0.35), 0 14px 32px rgba(139, 111, 240, 0.45);
      color: #fff;
    }

    /* ===== 通用板块 ===== */
    .section-pad {
      padding: 96px 0;
    }

    .section-pad-sm {
      padding: 64px 0;
    }

    .section-head {
      text-align: center;
      max-width: 720px;
      margin: 0 auto 48px;
    }

    .section-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.8rem;
      font-weight: 600;
      letter-spacing: 0.1em;
      color: var(--accent-cyan);
      text-transform: none;
      margin-bottom: 12px;
    }

    .section-tag::before,
    .section-tag::after {
      content: "";
      width: 22px;
      height: 1px;
      background: linear-gradient(90deg, transparent, var(--accent-cyan));
    }

    .section-tag::after {
      background: linear-gradient(90deg, var(--accent-cyan), transparent);
    }

    .section-head h2 {
      font-size: clamp(1.5rem, 3vw, 2.2rem);
      font-weight: 700;
      letter-spacing: 0.02em;
      color: var(--text-main);
      margin-bottom: 12px;
    }

    .section-head p {
      font-size: 1rem;
      color: var(--text-sub);
      line-height: 1.7;
    }

    /* ===== 分类卡片区 ===== */
    .cat-cards-section {
      background: var(--bg-deep);
      padding: 96px 0;
      position: relative;
    }

    .cat-cards-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        radial-gradient(1px 1px at 30% 40%, rgba(255, 255, 255, 0.12), transparent),
        radial-gradient(1px 1px at 65% 75%, rgba(244, 199, 102, 0.1), transparent),
        radial-gradient(ellipse at 82% 30%, rgba(139, 111, 240, 0.06), transparent 55%);
      pointer-events: none;
    }

    .cat-cards-section .container-custom {
      position: relative;
      z-index: 1;
    }

    .cat-grid {
      display: grid;
      grid-template-columns: 7fr 5fr;
      gap: 24px;
    }

    .cat-grid .small-row {
      grid-column: 1 / -1;
      display: grid;
      grid-template-columns: repeat(3, 1fr);
      gap: 24px;
    }

    .cat-card {
      position: relative;
      background: var(--bg-card-grad);
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-xl);
      padding: 32px;
      box-shadow: var(--shadow-card);
      overflow: hidden;
      transition: all 0.35s ease;
      display: flex;
      flex-direction: column;
      min-height: 100%;
    }

    .cat-card::before {
      content: "";
      position: absolute;
      top: -60px;
      right: -60px;
      width: 140px;
      height: 140px;
      border-radius: 50%;
      background: radial-gradient(circle, rgba(139, 111, 240, 0.18), transparent 65%);
      pointer-events: none;
      transition: transform 0.4s ease;
    }

    .cat-card:hover {
      transform: translateY(-4px);
      box-shadow: var(--shadow-hover);
      border-color: rgba(244, 199, 102, 0.3);
    }

    .cat-card:hover::before {
      transform: scale(1.5);
    }

    .cat-card .card-icon {
      width: 48px;
      height: 48px;
      border-radius: 14px;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 1.25rem;
      color: var(--accent-gold);
      background: rgba(244, 199, 102, 0.1);
      border: 1px solid rgba(244, 199, 102, 0.22);
      margin-bottom: 20px;
    }

    .cat-card .card-icon.cyan {
      color: var(--accent-cyan);
      background: rgba(84, 214, 201, 0.1);
      border-color: rgba(84, 214, 201, 0.22);
    }

    .cat-card .card-icon.purple {
      color: var(--accent-purple);
      background: rgba(139, 111, 240, 0.12);
      border-color: rgba(139, 111, 240, 0.25);
    }

    .cat-card h3 {
      font-size: 1.2rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
      letter-spacing: 0.02em;
    }

    .cat-card p {
      font-size: 0.95rem;
      color: var(--text-sub);
      line-height: 1.7;
      flex: 1;
      margin-bottom: 20px;
    }

    .cat-card .card-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.92rem;
      font-weight: 600;
      color: var(--accent-cyan);
      transition: gap 0.3s;
    }

    .cat-card .card-link:hover {
      color: var(--accent-gold);
      gap: 12px;
    }

    /* ===== 场景区 ===== */
    .scenes-section {
      background: linear-gradient(180deg, var(--bg-deep) 0%, #0D1228 100%);
      padding: 96px 0;
    }

    .scene-item {
      display: grid;
      grid-template-columns: 1fr 1fr;
      gap: 48px;
      align-items: center;
      margin-bottom: 80px;
    }

    .scene-item:last-child {
      margin-bottom: 0;
    }

    .scene-item:nth-child(even) .scene-img {
      order: 2;
    }

    .scene-item:nth-child(even) .scene-text {
      order: 1;
    }

    .scene-img {
      border-radius: var(--radius-xl);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      border: 1px solid var(--border-soft);
      position: relative;
    }

    .scene-img img {
      width: 100%;
      height: 320px;
      object-fit: cover;
      display: block;
      transition: transform 0.5s ease;
    }

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

    .scene-img::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 60%, rgba(10, 14, 31, 0.4) 100%);
      pointer-events: none;
    }

    .scene-text .scene-tag {
      display: inline-flex;
      align-items: center;
      gap: 6px;
      font-size: 0.82rem;
      font-weight: 600;
      color: var(--accent-gold);
      background: rgba(244, 199, 102, 0.08);
      border: 1px solid rgba(244, 199, 102, 0.2);
      border-radius: 999px;
      padding: 5px 14px;
      margin-bottom: 18px;
    }

    .scene-text h3 {
      font-size: clamp(1.3rem, 2.2vw, 1.75rem);
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 14px;
      letter-spacing: 0.02em;
    }

    .scene-text p {
      font-size: 1rem;
      color: var(--text-sub);
      line-height: 1.8;
      margin-bottom: 24px;
    }

    .scene-link {
      display: inline-flex;
      align-items: center;
      gap: 8px;
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--accent-cyan);
      transition: gap 0.3s, color 0.3s;
    }

    .scene-link:hover {
      color: var(--accent-gold);
      gap: 12px;
    }

    /* ===== 流程区 ===== */
    .process-section {
      background: var(--bg-deep);
      padding: 96px 0;
      position: relative;
    }

    .process-section::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image: radial-gradient(ellipse at 50% 100%, rgba(84, 214, 201, 0.06), transparent 55%);
      pointer-events: none;
    }

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

    .process-item {
      background: var(--bg-card-grad);
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-lg);
      padding: 28px;
      text-align: center;
      position: relative;
      box-shadow: var(--shadow-card);
      transition: transform 0.3s ease, box-shadow 0.3s ease;
    }

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

    .process-num {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 44px;
      height: 44px;
      border-radius: 50%;
      font-size: 1.1rem;
      font-weight: 700;
      color: var(--bg-deep);
      background: linear-gradient(135deg, var(--accent-gold), #E0A94A);
      margin-bottom: 18px;
      box-shadow: 0 6px 18px rgba(244, 199, 102, 0.3);
    }

    .process-item h3 {
      font-size: 1rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 10px;
    }

    .process-item p {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.65;
      margin-bottom: 0;
    }

    /* ===== 推荐阅读区 ===== */
    .reading-section {
      background: linear-gradient(180deg, #0D1228 0%, var(--bg-deep) 100%);
      padding: 96px 0;
    }

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

    .reading-card {
      background: var(--bg-card-grad);
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-xl);
      overflow: hidden;
      box-shadow: var(--shadow-card);
      transition: all 0.35s ease;
      display: flex;
      flex-direction: column;
    }

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

    .reading-card .reading-img {
      width: 100%;
      height: 160px;
      overflow: hidden;
      position: relative;
    }

    .reading-card .reading-img img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      display: block;
      transition: transform 0.5s ease;
    }

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

    .reading-card .reading-img::after {
      content: "";
      position: absolute;
      inset: 0;
      background: linear-gradient(180deg, transparent 55%, rgba(10, 14, 31, 0.65) 100%);
    }

    .reading-card .reading-body {
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
    }

    .reading-card .reading-tag {
      display: inline-block;
      font-size: 0.78rem;
      font-weight: 600;
      color: var(--accent-gold);
      background: rgba(244, 199, 102, 0.08);
      border: 1px solid rgba(244, 199, 102, 0.2);
      border-radius: 999px;
      padding: 4px 12px;
      align-self: flex-start;
      margin-bottom: 12px;
    }

    .reading-card h3 {
      font-size: 1.05rem;
      font-weight: 700;
      color: var(--text-main);
      line-height: 1.5;
      margin-bottom: 10px;
    }

    .reading-card p {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.65;
      flex: 1;
      margin-bottom: 16px;
    }

    .reading-card .reading-meta {
      display: flex;
      align-items: center;
      justify-content: space-between;
      font-size: 0.82rem;
      color: var(--text-sub);
    }

    .reading-card .reading-meta .arrow {
      color: var(--accent-cyan);
      transition: transform 0.3s;
    }

    .reading-card:hover .reading-meta .arrow {
      transform: translateX(4px);
      color: var(--accent-gold);
    }

    /* ===== FAQ ===== */
    .faq-section {
      background: var(--bg-deep);
      padding: 96px 0;
    }

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

    .accordion {
      --bs-accordion-bg: transparent;
      --bs-accordion-border-width: 0;
      --bs-accordion-btn-padding-y: 1.1rem;
      --bs-accordion-btn-padding-x: 1.25rem;
      --bs-accordion-body-padding-x: 1.25rem;
      --bs-accordion-body-padding-y: 0.5rem 1.25rem 1.25rem;
    }

    .accordion-item {
      background: var(--bg-card-grad);
      border: 1px solid var(--border-soft);
      border-radius: 16px !important;
      margin-bottom: 16px;
      overflow: hidden;
      transition: border-color 0.3s, box-shadow 0.3s;
    }

    .accordion-item:hover {
      border-color: rgba(139, 111, 240, 0.35);
      box-shadow: var(--shadow-card);
    }

    .accordion-button {
      font-size: 1rem;
      font-weight: 600;
      color: var(--text-main);
      background: transparent;
      border-radius: 16px !important;
      transition: background 0.3s, color 0.3s;
    }

    .accordion-button:not(.collapsed) {
      background: rgba(139, 111, 240, 0.08);
      color: var(--accent-gold);
      box-shadow: none;
    }

    .accordion-button:focus {
      box-shadow: 0 0 0 3px rgba(139, 111, 240, 0.15);
    }

    .accordion-button::after {
      content: "+";
      background: none;
      font-family: "Font Awesome 6 Free";
      font-weight: 900;
      font-size: 1rem;
      color: var(--accent-cyan);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      width: 28px;
      height: 28px;
      border-radius: 50%;
      border: 1px solid var(--border-soft);
      transition: transform 0.35s ease;
    }

    .accordion-button:not(.collapsed)::after {
      transform: rotate(45deg);
      color: var(--accent-gold);
      border-color: rgba(244, 199, 102, 0.35);
    }

    .accordion-body {
      font-size: 0.95rem;
      color: var(--text-sub);
      line-height: 1.75;
      border-top: 1px solid rgba(255, 255, 255, 0.06);
    }

    /* ===== CTA ===== */
    .cta-section {
      padding: 40px 0 96px;
      background: var(--bg-deep);
    }

    .cta-banner {
      background: linear-gradient(135deg, rgba(139, 111, 240, 0.85), rgba(84, 214, 201, 0.8));
      border-radius: var(--radius-xl);
      padding: 56px 48px;
      text-align: center;
      position: relative;
      overflow: hidden;
      box-shadow: 0 20px 50px rgba(139, 111, 240, 0.3);
    }

    .cta-banner::before {
      content: "";
      position: absolute;
      inset: 0;
      background-image:
        radial-gradient(1px 1px at 20% 30%, rgba(255, 255, 255, 0.5), transparent),
        radial-gradient(1px 1px at 80% 60%, rgba(255, 255, 255, 0.4), transparent),
        radial-gradient(ellipse at 75% 20%, rgba(255, 255, 255, 0.15), transparent 55%);
      pointer-events: none;
    }

    .cta-banner h2 {
      position: relative;
      z-index: 1;
      font-size: clamp(1.5rem, 3vw, 2.2rem);
      font-weight: 700;
      color: #fff;
      margin-bottom: 12px;
      letter-spacing: 0.02em;
    }

    .cta-banner p {
      position: relative;
      z-index: 1;
      font-size: 1rem;
      color: rgba(255, 255, 255, 0.9);
      max-width: 560px;
      margin: 0 auto 28px;
      line-height: 1.7;
    }

    .btn-cta {
      position: relative;
      z-index: 1;
      display: inline-flex;
      align-items: center;
      gap: 8px;
      height: 50px;
      padding: 0 32px;
      border-radius: 999px;
      font-size: 1rem;
      font-weight: 700;
      color: var(--bg-deep);
      background: #fff;
      border: none;
      box-shadow: 0 8px 24px rgba(10, 14, 31, 0.2);
      transition: all 0.3s ease;
    }

    .btn-cta:hover {
      background: var(--accent-gold);
      color: var(--bg-deep);
      transform: translateY(-3px);
      box-shadow: 0 12px 28px rgba(244, 199, 102, 0.35);
    }

    /* ===== 页脚 ===== */
    .site-footer {
      background: #070A18;
      border-top: 1px solid rgba(139, 111, 240, 0.12);
      padding: 80px 0 0;
    }

    .footer-grid {
      display: grid;
      grid-template-columns: 1.4fr 1fr 1fr 1fr;
      gap: 40px;
      padding-bottom: 56px;
    }

    .footer-logo {
      display: flex;
      align-items: center;
      gap: 10px;
      font-size: 1.15rem;
      font-weight: 700;
      color: var(--text-main);
      margin-bottom: 16px;
    }

    .footer-logo i {
      color: var(--accent-gold);
      font-size: 1.2rem;
      text-shadow: 0 0 14px rgba(244, 199, 102, 0.4);
    }

    .footer-brand p {
      font-size: 0.9rem;
      color: var(--text-sub);
      line-height: 1.7;
      margin-bottom: 20px;
    }

    .footer-qr {
      width: 120px;
      height: 120px;
      border: 1px solid var(--border-soft);
      border-radius: var(--radius-lg);
      background: rgba(139, 111, 240, 0.05);
      display: flex;
      align-items: center;
      justify-content: center;
      text-align: center;
      font-size: 0.75rem;
      color: var(--text-sub);
      line-height: 1.5;
    }

    .footer-title {
      font-size: 0.95rem;
      font-weight: 600;
      color: var(--text-main);
      margin-bottom: 18px;
    }

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

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

    .footer-links a {
      font-size: 0.9rem;
      color: var(--text-sub);
      display: inline-flex;
      align-items: center;
      gap: 8px;
      transition: color 0.3s, gap 0.3s;
    }

    .footer-links a:hover {
      color: var(--accent-gold);
      gap: 12px;
    }

    .footer-links a i {
      font-size: 0.7rem;
      color: var(--accent-cyan);
    }

    .footer-bottom {
      border-top: 1px solid rgba(255, 255, 255, 0.06);
      padding: 24px 0;
      text-align: center;
      font-size: 0.85rem;
      color: var(--text-sub);
      display: flex;
      flex-wrap: wrap;
      gap: 8px;
      justify-content: center;
    }

    .footer-bottom a {
      color: var(--accent-cyan);
    }

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

    /* ===== 响应式 ===== */
    @media (max-width: 991.98px) {
      .nav-panel {
        flex-wrap: wrap;
      }

      .nav-toggle {
        display: flex;
      }

      .nav-menu {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        gap: 8px;
        padding-top: 12px;
        border-top: 1px solid var(--border-soft);
        margin-top: 10px;
      }

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

      .nav-link {
        justify-content: flex-start;
        height: 46px;
        width: 100%;
        padding: 0 16px;
        border-radius: 12px;
      }

      .nav-cta {
        width: 100%;
        justify-content: center;
        margin-top: 8px;
      }

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

      .cat-grid .small-row {
        grid-template-columns: 1fr 1fr;
      }

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

      .scene-item:nth-child(even) .scene-img {
        order: 1;
      }

      .scene-item:nth-child(even) .scene-text {
        order: 2;
      }

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

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

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

    @media (max-width: 767.98px) {
      .container-custom {
        padding-left: 16px;
        padding-right: 16px;
      }

      .section-pad,
      .cat-cards-section,
      .scenes-section,
      .process-section,
      .reading-section,
      .faq-section {
        padding: 56px 0;
      }

      .category-hero {
        padding: 56px 0 48px;
      }

      .category-hero h1 {
        font-size: 1.8rem;
      }

      .category-hero .hero-sub {
        font-size: 0.95rem;
      }

      .hero-badges {
        flex-direction: row;
        flex-wrap: wrap;
      }

      .badge-item {
        font-size: 0.78rem;
        padding: 6px 12px;
      }

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

      .cat-grid .small-row {
        grid-template-columns: 1fr;
      }

      .cat-card {
        padding: 24px;
      }

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

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

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

      .cta-banner {
        padding: 40px 24px;
      }

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

      .section-head {
        margin-bottom: 32px;
      }

      .reading-card .reading-img {
        height: 140px;
      }

      .accordion-button {
        font-size: 0.95rem;
        padding: 0.95rem 1rem;
      }

      .accordion-body {
        font-size: 0.9rem;
      }
    }

    @media (max-width: 520px) {
      .nav-logo {
        font-size: 1.05rem;
      }

      .nav-panel {
        padding: 8px 14px;
      }

      .cat-card h3 {
        font-size: 1.1rem;
      }

      .scene-img img {
        height: 220px;
      }

      .scene-text p {
        font-size: 0.93rem;
      }

      .badge-item {
        padding: 5px 10px;
      }

      .footer-bottom {
        font-size: 0.78rem;
        flex-direction: column;
      }
    }