/* roulang page: index */
:root {
  --primary: #F5A623;
  --primary-dark: #E8891D;
  --primary-deep: #D97706;
  --dark: #111827;
  --dark-2: #1A1A1A;
  --bg-warm: #F5F2EC;
  --bg-sand: #E9E4DB;
  --text-main: #1F2937;
  --text-muted: #6B7280;
  --border: #E5DFD6;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.06);
  --shadow-hover: 0 8px 32px rgba(0,0,0,0.10);
  --transition: 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background-color: var(--bg-warm);
  -webkit-font-smoothing: antialiased;
}

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

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

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

input {
  font-family: inherit;
}

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* 顶部导航 */
.site-header {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: linear-gradient(180deg, rgba(17,24,39,0.88) 0%, rgba(17,24,39,0.55) 60%, transparent 100%);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
  background: rgba(17,24,39,0.95);
  box-shadow: 0 2px 20px rgba(0,0,0,0.25);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  box-shadow: 0 0 0 3px rgba(245,166,35,0.3);
}
.brand-mark::before {
  content: "";
  width: 10px;
  height: 10px;
  background: #fff;
  border-radius: 2px;
  transform: rotate(45deg);
  opacity: 0.9;
}
.brand-text {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
  white-space: nowrap;
}
.brand-text .dot {
  color: var(--primary);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 6px;
  margin: 0 auto;
}
.nav-links a {
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,0.88);
  border-radius: 8px;
  transition: all var(--transition);
  position: relative;
}
.nav-links a:hover {
  color: var(--primary);
  background: rgba(245,166,35,0.1);
}
.nav-links a.active {
  color: var(--primary);
  font-weight: 700;
}
.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: 2px;
  left: 16px;
  right: 16px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-shrink: 0;
}
.search-wrap {
  display: flex;
  align-items: center;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 10px;
  overflow: hidden;
  height: 40px;
  transition: all var(--transition);
}
.search-wrap:focus-within {
  border-color: var(--primary);
  background: rgba(255,255,255,0.15);
  box-shadow: 0 0 0 3px rgba(245,166,35,0.2);
}
.search-wrap input {
  width: 132px;
  height: 100%;
  padding: 0 14px;
  background: transparent;
  border: none;
  outline: none;
  color: #fff;
  font-size: 14px;
}
.search-wrap input::placeholder {
  color: rgba(255,255,255,0.6);
}
.search-wrap button {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.8);
  transition: all var(--transition);
}
.search-wrap button:hover {
  background: var(--primary);
  color: #fff;
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 40px;
  padding: 0 22px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  border-radius: 10px;
  transition: all var(--transition);
  box-shadow: 0 4px 16px rgba(245,166,35,0.35);
  white-space: nowrap;
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(245,166,35,0.45);
  color: #fff;
}
.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  background: rgba(255,255,255,0.15);
  border-radius: 8px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  width: 18px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all 0.3s ease;
}
.mobile-menu {
  display: none;
  background: rgba(17,24,39,0.98);
  padding: 16px 24px 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.mobile-menu a {
  display: block;
  padding: 12px 16px;
  color: rgba(255,255,255,0.88);
  font-size: 16px;
  font-weight: 500;
  border-radius: 8px;
  margin-bottom: 4px;
}
.mobile-menu a:hover,
.mobile-menu a.active {
  background: rgba(245,166,35,0.15);
  color: var(--primary);
}

/* Hero */
.hero {
  position: relative;
  min-height: 92vh;
  display: flex;
  align-items: center;
  background-image: url('/assets/images/backpic/back-1.jpg');
  background-size: cover;
  background-position: center;
  padding: 120px 0 80px;
}
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(17,24,39,0.92) 0%, rgba(17,24,39,0.72) 45%, rgba(17,24,39,0.45) 100%);
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: 760px;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(245,166,35,0.18);
  border: 1px solid rgba(245,166,35,0.4);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}
.hero h1 {
  font-size: 52px;
  font-weight: 800;
  line-height: 1.2;
  color: #fff;
  letter-spacing: 1px;
  margin-bottom: 24px;
}
.hero h1 span {
  color: var(--primary);
}
.hero .hero-desc {
  font-size: 17px;
  line-height: 1.85;
  color: rgba(255,255,255,0.88);
  margin-bottom: 36px;
  max-width: 620px;
}
.hero-cta-row {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 52px;
  padding: 0 36px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  border-radius: 12px;
  transition: all var(--transition);
  box-shadow: 0 4px 20px rgba(245,166,35,0.4);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 32px rgba(245,166,35,0.5);
  color: #fff;
}
.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  height: 52px;
  padding: 0 24px;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.35);
  color: #fff;
  font-size: 15px;
  font-weight: 500;
  border-radius: 12px;
  transition: all var(--transition);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.2);
  border-color: var(--primary);
  color: var(--primary);
  transform: translateY(-2px);
}
.hero-data {
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
}
.hero-data-item {
  text-align: left;
}
.hero-data-item .num {
  font-size: 30px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}
.hero-data-item .label {
  font-size: 13px;
  color: rgba(255,255,255,0.7);
  margin-top: 4px;
}
.scroll-indicator {
  position: absolute;
  bottom: 30px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: rgba(255,255,255,0.7);
  font-size: 12px;
  letter-spacing: 2px;
  animation: bounce 2s infinite;
}
.scroll-indicator i {
  font-size: 20px;
  color: var(--primary);
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(10px); }
}

/* 区块通用 */
.section {
  padding: 96px 0;
}
.section-header {
  margin-bottom: 56px;
}
.section-kicker {
  display: inline-block;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary-deep);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 12px;
  background: rgba(245,166,35,0.1);
  padding: 4px 14px;
  border-radius: 50px;
}
.section-title {
  font-size: 38px;
  font-weight: 800;
  line-height: 1.25;
  color: var(--dark);
  margin-bottom: 16px;
}
.section-subtitle {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-muted);
  max-width: 720px;
}
.section-light {
  background: var(--bg-warm);
}
.section-sand {
  background: var(--bg-sand);
}
.section-dark {
  background: var(--dark);
  color: #fff;
}
.section-dark .section-title {
  color: #fff;
}
.section-dark .section-subtitle {
  color: rgba(255,255,255,0.75);
}

/* 卖点三连 */
.features-wrap {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 32px;
}
.feature-item {
  position: relative;
  padding: 40px 32px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
  overflow: hidden;
}
.feature-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 3px;
  height: 0;
  background: linear-gradient(180deg, var(--primary), var(--primary-deep));
  transition: height 0.3s ease;
}
.feature-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.feature-item:hover::before {
  height: 100%;
}
.feature-num {
  font-size: 48px;
  font-weight: 800;
  color: rgba(245,166,35,0.15);
  line-height: 1;
  margin-bottom: 20px;
  font-style: italic;
}
.feature-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, rgba(245,166,35,0.15), rgba(232,137,29,0.1));
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.feature-icon svg {
  width: 26px;
  height: 26px;
  color: var(--primary-deep);
}
.feature-item h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 12px;
}
.feature-item p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-muted);
}

/* 场景演示 */
.showcase-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.showcase-visual {
  position: relative;
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow-hover);
}
.showcase-visual img {
  width: 100%;
  height: 520px;
  object-fit: cover;
}
.showcase-visual .play-badge {
  position: absolute;
  top: 20px;
  left: 20px;
  background: rgba(17,24,39,0.8);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 50px;
  border: 1px solid rgba(255,255,255,0.25);
}
.showcase-steps {
  display: flex;
  flex-direction: column;
  gap: 28px;
}
.showcase-step {
  display: flex;
  gap: 20px;
  padding: 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
}
.showcase-step:hover {
  box-shadow: var(--shadow);
}
.step-index {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  font-weight: 800;
  flex-shrink: 0;
}
.showcase-step h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 6px;
}
.showcase-step p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-muted);
}

/* 爆款清单 */
.hot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.hot-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.hot-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.hot-card .thumb {
  position: relative;
  height: 220px;
  overflow: hidden;
}
.hot-card .thumb img {
  width: 100%;
  height: 100%;
  transition: transform 0.4s ease;
}
.hot-card:hover .thumb img {
  transform: scale(1.05);
}
.hot-card .duration {
  position: absolute;
  bottom: 10px;
  right: 10px;
  background: rgba(17,24,39,0.85);
  color: #fff;
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 6px;
}
.hot-card .badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 6px;
}
.hot-card .card-body {
  padding: 20px 22px 22px;
}
.hot-card h3 {
  font-size: 17px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
  line-height: 1.4;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: color var(--transition);
}
.hot-card:hover h3 {
  color: var(--primary-deep);
}
.hot-card .card-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.hot-card .meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  font-size: 13px;
  color: var(--text-muted);
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.hot-card .tags {
  display: flex;
  gap: 8px;
}
.tag {
  display: inline-block;
  background: var(--bg-warm);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 12px;
  padding: 2px 10px;
  border-radius: 50px;
}

/* 评价墙 */
.testi-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-bottom: 56px;
}
.testi-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  position: relative;
  transition: all var(--transition);
}
.testi-card::before {
  content: "\201C";
  position: absolute;
  top: 16px;
  left: 24px;
  font-size: 72px;
  color: rgba(245,166,35,0.2);
  font-family: Georgia, serif;
  line-height: 1;
}
.testi-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.testi-card .quote {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-main);
  margin-bottom: 20px;
  min-height: 100px;
}
.testi-card .author {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 16px;
  border-top: 1px solid var(--border);
}
.testi-card .avatar {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--primary), var(--primary-deep));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 16px;
  font-weight: 700;
}
.testi-card .author-info .name {
  font-size: 14px;
  font-weight: 700;
  color: var(--dark);
}
.testi-card .author-info .from {
  font-size: 12px;
  color: var(--text-muted);
}
.testi-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  background: var(--dark);
  border-radius: 20px;
  padding: 40px;
  text-align: center;
}
.testi-stats .stat-num {
  font-size: 42px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}
.testi-stats .stat-label {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-top: 6px;
}

/* 资讯区 */
.news-wrap {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
}
.news-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.news-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 20px 24px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  transition: all var(--transition);
}
.news-item:hover {
  box-shadow: var(--shadow);
  border-color: var(--primary);
  transform: translateX(6px);
}
.news-item .news-title {
  font-size: 15px;
  font-weight: 600;
  color: var(--dark);
  flex: 1;
  transition: color var(--transition);
}
.news-item:hover .news-title {
  color: var(--primary-deep);
}
.news-item .news-meta {
  font-size: 13px;
  color: var(--text-muted);
  white-space: nowrap;
}
.news-sidebar {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.sidebar-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
}
.sidebar-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}
.sidebar-card .cat-list {
  list-style: none;
}
.sidebar-card .cat-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px 0;
  border-bottom: 1px dashed var(--border);
  font-size: 14px;
  color: var(--text-main);
  transition: all var(--transition);
}
.sidebar-card .cat-list li:last-child {
  border-bottom: none;
}
.sidebar-card .cat-list li:hover {
  color: var(--primary-deep);
  padding-left: 6px;
}
.sidebar-card .cat-list .count {
  background: var(--bg-warm);
  font-size: 12px;
  color: var(--text-muted);
  padding: 2px 10px;
  border-radius: 50px;
}

/* FAQ */
.faq-wrap {
  max-width: 860px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  margin-bottom: 12px;
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item.open {
  box-shadow: var(--shadow);
  border-color: var(--primary);
}
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 28px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--dark);
  transition: background var(--transition);
}
.faq-question:hover {
  background: var(--bg-warm);
}
.faq-question .icon {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: rgba(245,166,35,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary-deep);
  font-size: 16px;
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.open .icon {
  transform: rotate(45deg);
  background: var(--primary);
  color: #fff;
}
.faq-answer {
  display: none;
  padding: 0 28px 24px;
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-muted);
}
.faq-item.open .faq-answer {
  display: block;
}

/* CTA条 */
.cta-bar {
  background: linear-gradient(120deg, var(--dark) 0%, #1a1a1a 100%);
  border-radius: 20px;
  padding: 52px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  flex-wrap: wrap;
  margin: 96px 0;
  position: relative;
  overflow: hidden;
}
.cta-bar::before {
  content: "";
  position: absolute;
  top: -60px;
  right: -60px;
  width: 180px;
  height: 180px;
  border-radius: 50%;
  background: rgba(245,166,35,0.15);
}
.cta-bar h2 {
  font-size: 28px;
  font-weight: 800;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 8px;
}
.cta-bar p {
  color: rgba(255,255,255,0.7);
  font-size: 15px;
}
.cta-bar .btn-primary {
  flex-shrink: 0;
}

/* 底部固定转化条 */
.fixed-convert {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  background: rgba(17,24,39,0.95);
  backdrop-filter: blur(12px);
  padding: 14px 0;
  z-index: 200;
  box-shadow: 0 -4px 20px rgba(0,0,0,0.2);
  transform: translateY(100%);
  transition: transform 0.4s ease;
}
.fixed-convert.show {
  transform: translateY(0);
}
.fixed-convert .inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}
.fixed-convert .slogan {
  color: #fff;
  font-size: 16px;
  font-weight: 700;
}
.fixed-convert .slogan span {
  color: var(--primary);
}
.fixed-convert .btn-primary {
  height: 44px;
  padding: 0 28px;
  font-size: 15px;
}

/* 页脚 */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding: 64px 0 32px;
  margin-top: 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 32px;
}
.footer-brand .brand-text {
  margin-bottom: 16px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  margin-top: 16px;
}
.footer-heading {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 20px;
}
.footer-links {
  list-style: none;
}
.footer-links li {
  margin-bottom: 12px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.65);
  transition: all var(--transition);
}
.footer-links a:hover {
  color: var(--primary);
  padding-left: 4px;
}
.footer-bottom {
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.4);
}

/* 响应式 */
@media (max-width: 1024px) {
  .container { padding: 0 20px; }
  .nav-links { gap: 4px; }
  .nav-links a { padding: 8px 12px; font-size: 14px; }
  .search-wrap input { width: 100px; }
  .hero h1 { font-size: 42px; }
  .features-wrap { gap: 20px; }
  .feature-item { padding: 28px 24px; }
  .showcase-wrap { gap: 36px; }
  .showcase-visual img { height: 420px; }
  .hot-grid { grid-template-columns: repeat(2, 1fr); }
  .testi-grid { grid-template-columns: repeat(2, 1fr); }
  .news-wrap { grid-template-columns: 1fr; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .section-title { font-size: 30px; }
  .site-header { background: rgba(17,24,39,0.95); }
  .nav-links, .nav-actions .search-wrap, .nav-actions .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .mobile-menu { display: block; }
  .mobile-menu.hidden { display: none; }
  .hero { min-height: 80vh; padding: 100px 0 60px; }
  .hero h1 { font-size: 32px; }
  .hero .hero-desc { font-size: 15px; }
  .hero-cta-row { gap: 12px; }
  .btn-primary { height: 46px; padding: 0 28px; font-size: 15px; }
  .btn-ghost { height: 46px; padding: 0 20px; font-size: 14px; }
  .hero-data { gap: 24px; }
  .features-wrap { grid-template-columns: 1fr; }
  .showcase-wrap { grid-template-columns: 1fr; }
  .showcase-visual img { height: 300px; }
  .hot-grid { grid-template-columns: 1fr; }
  .testi-grid { grid-template-columns: 1fr; }
  .testi-stats { grid-template-columns: repeat(2, 1fr); gap: 20px; padding: 28px 20px; }
  .testi-stats .stat-num { font-size: 32px; }
  .news-item { flex-direction: column; align-items: flex-start; gap: 8px; }
  .cta-bar { padding: 36px 24px; }
  .cta-bar h2 { font-size: 22px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .fixed-convert .slogan { font-size: 13px; }
  .fixed-convert .btn-primary { font-size: 13px; padding: 0 16px; height: 38px; }
  .scroll-indicator { display: none; }
}

@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .brand-text { font-size: 18px; }
  .hero h1 { font-size: 26px; }
  .hero .hero-desc { font-size: 14px; }
  .hero-cta-row { flex-direction: column; align-items: stretch; }
  .btn-primary, .btn-ghost { width: 100%; }
  .section-title { font-size: 26px; }
  .feature-item { padding: 24px 20px; }
  .hot-card .thumb { height: 190px; }
  .testi-card { padding: 24px; }
  .testi-card .quote { min-height: auto; }
  .testi-stats { grid-template-columns: 1fr 1fr; }
  .faq-question { padding: 18px 20px; font-size: 15px; }
  .faq-answer { padding: 0 20px 20px; }
  .cta-bar { flex-direction: column; text-align: center; }
  .cta-bar .btn-primary { width: 100%; }
  .fixed-convert .inner { flex-direction: column; gap: 10px; padding: 10px 16px; }
  .footer-grid { grid-template-columns: 1fr; }
}

/* 无障碍焦点 */
a:focus-visible, button:focus-visible, input:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* 滚动渐入 */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* roulang page: category1 */
:root {
  --primary: #F5A623;
  --primary-dark: #E8891D;
  --primary-deep: #D97706;
  --dark: #111827;
  --dark-2: #1A1A1A;
  --bg-warm: #F5F2EC;
  --bg-sand: #E9E4DB;
  --text-main: #1F2937;
  --text-muted: #6B7280;
  --border: #E5DFD6;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 4px 24px rgba(0,0,0,0.06);
  --shadow-hover: 0 8px 32px rgba(0,0,0,0.10);
  --transition: 0.25s ease;
}
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-main);
  background-color: var(--bg-warm);
  -webkit-font-smoothing: antialiased;
}
a { text-decoration: none; color: inherit; transition: color var(--transition); }
img { max-width: 100%; display: block; object-fit: cover; }
button { cursor: pointer; border: none; font-family: inherit; }
input { font-family: inherit; }
.container { max-width: 1280px; margin: 0 auto; padding: 0 24px; }

/* 顶部导航 */
.site-header {
  position: absolute;
  top: 0; left: 0; right: 0;
  z-index: 100;
  background: linear-gradient(180deg, rgba(17,24,39,0.9) 0%, rgba(17,24,39,0.55) 60%, transparent 100%);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}
.site-header.scrolled {
  background: rgba(17,24,39,0.97);
  box-shadow: 0 2px 20px rgba(0,0,0,0.25);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}
.brand { display: flex; align-items: center; gap: 10px; flex-shrink: 0; }
.brand-mark {
  width: 34px; height: 34px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  position: relative;
  box-shadow: 0 0 0 3px rgba(245,166,35,0.3);
}
.brand-mark::before {
  content: "";
  width: 11px; height: 11px;
  background: #fff;
  border-radius: 2px;
  transform: rotate(45deg);
  opacity: 0.9;
}
.brand-text {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
  white-space: nowrap;
}
.nav-links { display: flex; align-items: center; gap: 4px; margin: 0 auto; }
.nav-links a {
  padding: 8px 16px;
  font-size: 15px;
  font-weight: 500;
  color: rgba(255,255,255,0.9);
  border-radius: 8px;
  transition: all var(--transition);
  position: relative;
}
.nav-links a:hover { color: var(--primary); background: rgba(245,166,35,0.1); }
.nav-links a.active { color: var(--primary); font-weight: 700; }
.nav-links a.active::after {
  content: "";
  position: absolute;
  bottom: 2px; left: 16px; right: 16px;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
}
.nav-actions { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.search-wrap {
  display: flex; align-items: center;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 10px;
  overflow: hidden;
  height: 40px;
  transition: all var(--transition);
}
.search-wrap:focus-within {
  border-color: var(--primary);
  background: rgba(255,255,255,0.15);
  box-shadow: 0 0 0 3px rgba(245,166,35,0.2);
}
.search-wrap input {
  width: 132px; height: 100%;
  padding: 0 14px;
  background: transparent;
  border: none; outline: none;
  color: #fff;
  font-size: 14px;
}
.search-wrap input::placeholder { color: rgba(255,255,255,0.6); }
.search-wrap button {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.1);
  color: rgba(255,255,255,0.8);
  transition: all var(--transition);
}
.search-wrap button:hover { background: var(--primary); color: #fff; }
.nav-cta {
  display: inline-flex; align-items: center; justify-content: center;
  height: 40px;
  padding: 0 22px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: #fff;
  font-size: 15px;
  font-weight: 700;
  border-radius: 10px;
  transition: all var(--transition);
  box-shadow: 0 4px 16px rgba(245,166,35,0.35);
  white-space: nowrap;
}
.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px rgba(245,166,35,0.45);
  color: #fff;
}
.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  background: rgba(255,255,255,0.15);
  border-radius: 8px;
  align-items: center; justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.nav-toggle span {
  width: 18px; height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: all 0.3s ease;
}
.mobile-menu {
  display: none;
  background: rgba(17,24,39,0.99);
  padding: 16px 24px 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
}
.mobile-menu a {
  display: block;
  padding: 12px 16px;
  color: rgba(255,255,255,0.88);
  font-size: 16px;
  font-weight: 500;
  border-radius: 8px;
  margin-bottom: 4px;
}
.mobile-menu a:hover,
.mobile-menu a.active {
  background: rgba(245,166,35,0.15);
  color: var(--primary);
}

/* 按钮体系 */
.btn-primary {
  display: inline-flex;
  align-items: center; justify-content: center;
  height: 50px;
  padding: 0 34px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: #fff;
  font-size: 16px;
  font-weight: 700;
  border-radius: 10px;
  transition: all var(--transition);
  box-shadow: 0 4px 16px rgba(245,166,35,0.35);
  white-space: nowrap;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(245,166,35,0.5);
  color: #fff;
}
.btn-primary:focus-visible { outline: 3px solid rgba(245,166,35,0.5); outline-offset: 2px; }
.btn-secondary {
  display: inline-flex;
  align-items: center; justify-content: center;
  height: 50px;
  padding: 0 34px;
  background: transparent;
  border: 1px solid rgba(255,255,255,0.4);
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  border-radius: 10px;
  transition: all var(--transition);
  white-space: nowrap;
}
.btn-secondary:hover {
  border-color: var(--primary);
  color: var(--primary);
  background: rgba(255,255,255,0.08);
  transform: translateY(-2px);
}
.btn-secondary:focus-visible { outline: 3px solid rgba(245,166,35,0.4); outline-offset: 2px; }

/* 板块通用 */
.section { padding: 96px 0; }
.section-header { margin-bottom: 48px; max-width: 720px; }
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 700;
  color: var(--primary-deep);
  letter-spacing: 2px;
  margin-bottom: 14px;
}
.section-title {
  font-size: 36px;
  font-weight: 800;
  line-height: 1.2;
  color: var(--dark);
  letter-spacing: 1px;
}
.section-desc {
  font-size: 16px;
  color: var(--text-muted);
  margin-top: 12px;
  line-height: 1.75;
}

/* 分类页 Hero */
.cat-hero {
  position: relative;
  padding: 160px 0 80px;
  background-image: url('/assets/images/backpic/back-3.jpg');
  background-size: cover;
  background-position: center;
  min-height: 320px;
  display: flex;
  align-items: center;
}
.cat-hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, rgba(17,24,39,0.94) 0%, rgba(17,24,39,0.78) 50%, rgba(17,24,39,0.55) 100%);
}
.cat-hero .container { position: relative; z-index: 2; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  margin-bottom: 24px;
}
.breadcrumb a { color: rgba(255,255,255,0.7); }
.breadcrumb a:hover { color: var(--primary); }
.breadcrumb i { font-size: 10px; opacity: 0.6; }
.breadcrumb span { color: var(--primary); font-weight: 600; }
.cat-hero h1 {
  font-size: 44px;
  font-weight: 800;
  line-height: 1.25;
  color: #fff;
  letter-spacing: 1px;
  margin-bottom: 16px;
  max-width: 800px;
}
.cat-hero h1 span { color: var(--primary); }
.cat-hero p {
  font-size: 17px;
  line-height: 1.85;
  color: rgba(255,255,255,0.85);
  max-width: 620px;
  margin-bottom: 32px;
}
.cat-hero-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }

/* 筛选栏 */
.chip-section {
  padding: 28px 0 8px;
  border-bottom: 1px solid var(--border);
  background: #fff;
}
.chip-bar {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}
.chip {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 22px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  background: var(--bg-warm);
  border: 1px solid var(--border);
  border-radius: 50px;
  transition: all var(--transition);
}
.chip:hover {
  border-color: var(--primary);
  color: var(--primary-deep);
  background: rgba(245,166,35,0.06);
}
.chip.active {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(245,166,35,0.3);
}
.chip i { font-size: 12px; }

/* 内容网格 */
.content-section { padding: 72px 0 64px; }
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}
.content-card {
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all var(--transition);
  display: flex;
  flex-direction: column;
}
.content-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(245,166,35,0.4);
}
.card-link { display: flex; flex-direction: column; height: 100%; }
.card-media {
  position: relative;
  aspect-ratio: 16/9;
  overflow: hidden;
  background: var(--bg-sand);
}
.card-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.content-card:hover .card-media img { transform: scale(1.06); }
.card-badge {
  position: absolute;
  top: 12px; left: 12px;
  background: rgba(17,24,39,0.78);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 5px 12px;
  border-radius: 50px;
  backdrop-filter: blur(4px);
  letter-spacing: 0.5px;
}
.card-duration {
  position: absolute;
  bottom: 12px; right: 12px;
  background: rgba(17,24,39,0.82);
  color: rgba(255,255,255,0.92);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 9px;
  border-radius: 6px;
  font-variant-numeric: tabular-nums;
}
.card-body { padding: 20px; display: flex; flex-direction: column; flex: 1; }
.card-body h3 {
  font-size: 18px;
  font-weight: 700;
  line-height: 1.4;
  color: var(--dark);
  margin-bottom: 8px;
  display: -webkit-box;
  -webkit-line-clamp: 1;
  -webkit-box-orient: vertical;
  overflow: hidden;
  transition: color var(--transition);
}
.content-card:hover .card-body h3 { color: var(--primary-deep); }
.card-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.card-meta {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 13px;
  color: #9CA3AF;
  margin-top: auto;
  padding-top: 12px;
  border-top: 1px solid var(--bg-sand);
}
.card-meta i { font-size: 12px; color: var(--primary); }
.content-card.featured {
  grid-column: span 2;
  flex-direction: row;
  align-items: stretch;
}
.content-card.featured .card-media {
  width: 50%;
  aspect-ratio: auto;
  min-height: 240px;
  flex-shrink: 0;
}
.content-card.featured .card-body {
  padding: 28px;
  justify-content: center;
}
.content-card.featured .card-body h3 { font-size: 22px; -webkit-line-clamp: 2; }
.content-card.featured .card-body p { font-size: 15px; -webkit-line-clamp: 3; }

/* 分页 */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  margin-top: 56px;
}
.page-btn {
  display: inline-flex;
  align-items: center; justify-content: center;
  width: 40px; height: 40px;
  font-size: 14px;
  font-weight: 600;
  color: var(--text-muted);
  background: #fff;
  border: 1px solid var(--border);
  border-radius: 10px;
  transition: all var(--transition);
}
.page-btn:hover {
  border-color: var(--primary);
  color: var(--primary-deep);
  background: rgba(245,166,35,0.05);
}
.page-btn.active {
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  color: #fff;
  border-color: transparent;
  box-shadow: 0 4px 12px rgba(245,166,35,0.35);
}
.page-btn.more { border: none; background: none; color: var(--text-muted); width: auto; }

/* 卖点区 */
.feature-section {
  background: var(--dark);
  padding: 96px 0;
  position: relative;
  overflow: hidden;
}
.feature-section::before {
  content: "";
  position: absolute;
  top: -80px; right: -80px;
  width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(245,166,35,0.2) 0%, transparent 70%);
  pointer-events: none;
}
.feature-section .section-tag { color: var(--primary); }
.feature-section .section-title { color: #fff; }
.feature-section .section-desc { color: rgba(255,255,255,0.65); }
.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  margin-top: 48px;
}
.feature-item {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 36px 32px;
  transition: all var(--transition);
  position: relative;
}
.feature-item:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(245,166,35,0.4);
  transform: translateY(-4px);
}
.feature-num {
  font-size: 46px;
  font-weight: 800;
  color: rgba(245,166,35,0.25);
  line-height: 1;
  margin-bottom: 20px;
  font-variant-numeric: tabular-nums;
}
.feature-icon {
  width: 48px; height: 48px;
  background: linear-gradient(135deg, var(--primary) 0%, var(--primary-deep) 100%);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  font-size: 20px;
  color: #fff;
  margin-bottom: 20px;
  box-shadow: 0 4px 16px rgba(245,166,35,0.35);
}
.feature-item h3 {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 10px;
}
.feature-item p {
  font-size: 15px;
  color: rgba(255,255,255,0.6);
  line-height: 1.75;
}

/* 适用场景 */
.scene-section { padding: 96px 0; background: var(--bg-warm); }
.scene-list {
  display: flex;
  flex-direction: column;
  gap: 32px;
  margin-top: 16px;
}
.scene-item {
  display: flex;
  align-items: center;
  gap: 36px;
  background: #fff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px;
  transition: all var(--transition);
}
.scene-item:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
  border-color: rgba(245,166,35,0.35);
}
.scene-item.reverse { flex-direction: row-reverse; }
.scene-media {
  width: 220px;
  height: 160px;
  border-radius: 12px;
  overflow: hidden;
  background: var(--bg-sand);
  flex-shrink: 0;
  position: relative;
  border: 4px solid var(--dark);
}
.scene-media img { width: 100%; height: 100%; object-fit: cover; }
.scene-media::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(17,24,39,0.4) 0%, transparent 40%);
}
.scene-info { flex: 1; }
.scene-info h3 {
  font-size: 22px;
  font-weight: 700;
  color: var(--dark);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.scene-info h3 i { color: var(--primary); font-size: 18px; }
.scene-info p {
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 12px;
}
.scene-tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.scene-tag {
  font-size: 12px;
  font-weight: 600;
  color: var(--primary-deep);
  background: rgba(245,166,35,0.1);
  padding: 4px 12px;
  border-radius: 50px;
}

/* FAQ */
.faq-section { padding: 96px 0; background: #fff; }
.faq-wrap {
  display: grid;
  grid-template-columns: 0.75fr 1.25fr;
  gap: 64px;
  align-items: start;
}
.faq-cta-side p { margin: 16px 0 24px; }
.faq-list { display: flex; flex-direction: column; gap: 12px; }
.faq-item {
  background: var(--bg-warm);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: all var(--transition);
}
.faq-item.open {
  border-color: rgba(245,166,35,0.4);
  box-shadow: var(--shadow);
}
.faq-question {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 22px;
  background: transparent;
  text-align: left;
  font-size: 16px;
  font-weight: 600;
  color: var(--dark);
  transition: background var(--transition);
}
.faq-question:hover { background: rgba(245,166,35,0.04); }
.faq-question i {
  font-size: 14px;
  color: var(--primary-deep);
  transition: transform 0.3s ease;
  flex-shrink: 0;
}
.faq-item.open .faq-question i { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
}
.faq-item.open .faq-answer {
  max-height: 320px;
  padding: 0 22px 20px;
}
.faq-answer p {
  font-size: 15px;
  line-height: 1.75;
  color: var(--text-muted);
}

/* CTA */
.cta-section {
  padding: 88px 0;
  background: linear-gradient(135deg, var(--dark) 0%, var(--dark-2) 100%);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: "";
  position: absolute;
  bottom: -100px; left: 50%;
  transform: translateX(-50%);
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(245,166,35,0.18) 0%, transparent 70%);
  pointer-events: none;
}
.cta-section .container { position: relative; z-index: 2; }
.cta-section h2 {
  font-size: 38px;
  font-weight: 800;
  color: #fff;
  letter-spacing: 1px;
  margin-bottom: 14px;
}
.cta-section h2 span { color: var(--primary); }
.cta-section p {
  font-size: 17px;
  color: rgba(255,255,255,0.7);
  max-width: 560px;
  margin: 0 auto 36px;
}
.cta-actions { display: flex; justify-content: center; gap: 16px; flex-wrap: wrap; }

/* 页脚 */
.site-footer {
  background: var(--dark);
  color: rgba(255,255,255,0.7);
  padding: 72px 0 28px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 0.8fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand a { margin-bottom: 0; display: inline-flex; }
.footer-brand p {
  font-size: 15px;
  line-height: 1.8;
  color: rgba(255,255,255,0.55);
  margin-top: 18px;
  max-width: 360px;
}
.footer-heading {
  font-size: 16px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: 1px;
}
.footer-links { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 10px; }
.footer-links a {
  font-size: 15px;
  color: rgba(255,255,255,0.55);
  transition: all var(--transition);
}
.footer-links a:hover { color: var(--primary); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 24px;
  text-align: center;
  font-size: 14px;
  color: rgba(255,255,255,0.4);
}

/* 动效 */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
.reveal.animate-in {
  opacity: 1;
  transform: translateY(0);
}

/* 响应式 */
@media (max-width: 1024px) {
  .cat-grid { grid-template-columns: repeat(2, 1fr); }
  .content-card.featured { grid-column: span 2; }
  .feature-grid { grid-template-columns: 1fr; }
  .faq-wrap { grid-template-columns: 1fr; gap: 32px; }
  .nav-links { display: none; }
  .nav-actions .search-wrap,
  .nav-actions .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .cat-hero { padding: 140px 0 56px; min-height: 280px; }
  .cat-hero h1 { font-size: 32px; }
  .section-title { font-size: 28px; }
  .cat-grid { grid-template-columns: 1fr; }
  .content-card.featured { flex-direction: column; grid-column: span 1; }
  .content-card.featured .card-media { width: 100%; min-height: 200px; }
  .scene-item { flex-direction: column; padding: 24px; }
  .scene-item.reverse { flex-direction: column; }
  .scene-media { width: 100%; height: 180px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .site-footer { padding: 48px 0 24px; }
  .cta-section h2 { font-size: 30px; }
  .feature-section { padding: 64px 0; }
  .faq-section, .scene-section { padding: 64px 0; }
  .breadcrumb { margin-bottom: 16px; }
  .cat-hero p { font-size: 15px; }
  .hero-cta-row { gap: 12px; }
}
@media (max-width: 520px) {
  .container { padding: 0 16px; }
  .brand-text { font-size: 19px; }
  .nav-inner { height: 64px; }
  .cat-hero h1 { font-size: 26px; }
  .section-title { font-size: 24px; }
  .btn-primary, .btn-secondary { height: 46px; padding: 0 24px; font-size: 15px; }
  .cat-hero-actions { flex-direction: column; align-items: stretch; }
  .cat-hero-actions .btn-primary,
  .cat-hero-actions .btn-secondary { width: 100%; }
  .chip-bar { gap: 8px; }
  .chip { padding: 7px 16px; font-size: 13px; }
  .card-body { padding: 16px; }
  .card-body h3 { font-size: 16px; }
  .pagination { gap: 6px; }
  .page-btn { width: 36px; height: 36px; font-size: 13px; }
  .cta-actions { flex-direction: column; align-items: stretch; }
  .cta-actions .btn-primary,
  .cta-actions .btn-secondary { width: 100%; }
  .faq-question { font-size: 15px; padding: 16px; }
}