/* roulang page: index */
:root {
  --primary: #C9971C;
  --primary-dark: #A87F14;
  --accent: #D9480F;
  --dark: #1E1C19;
  --dark-2: #2E2A24;
  --bg: #F7F4EE;
  --white: #FFFFFF;
  --text: #1E1C19;
  --text-2: #6B655C;
  --text-light: #F5F1E8;
  --text-light-2: #A8A29A;
  --line: #E8E2D8;
  --line-dark: rgba(255,255,255,.12);
  --success: #2F7D4F;
  --warning: #D9480F;
  --info: #3B6FA0;
  --radius-card: 12px;
  --radius-btn: 8px;
  --shadow-card: 0 2px 12px rgba(30,28,25,.06);
  --shadow-hover: 0 8px 24px rgba(30,28,25,.10);
  --font: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --transition: 120ms ease;
}
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
ul,
ol {
  list-style: none;
}
button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  outline: none;
  background: none;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1.4;
  text-align: center;
  border: 1px solid transparent;
}
.btn-primary {
  background: var(--primary);
  color: var(--dark);
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: var(--dark);
}
.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,.55);
  color: var(--text-light);
}
.btn-outline:hover {
  background: var(--dark);
  border-color: var(--dark);
  color: var(--primary);
}
.btn-dark-outline {
  background: transparent;
  border-color: var(--text);
  color: var(--text);
}
.btn-dark-outline:hover {
  background: var(--dark);
  color: var(--primary);
}
.btn-block {
  width: 100%;
}
.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ===================== 公告条 ===================== */
.notice-bar {
  background: var(--dark);
  color: var(--primary);
  font-size: 13px;
  text-align: center;
  padding: 8px 16px;
  line-height: 1.5;
  letter-spacing: .2px;
}
.notice-bar a {
  color: var(--text-light);
  margin-left: 8px;
  border-bottom: 1px solid rgba(255,255,255,.3);
}
.notice-bar a:hover {
  color: var(--primary);
}

/* ===================== 导航 ===================== */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
  height: 60px;
  display: flex;
  align-items: center;
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  width: 100%;
}
.logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  white-space: nowrap;
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-shrink: 0;
}
.logo em {
  font-style: normal;
  color: var(--primary);
}
.logo-sub {
  font-size: 12px;
  color: var(--text-2);
  font-weight: 400;
}
.nav {
  display: flex;
  gap: 24px;
  flex: 1;
}
.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding: 20px 0;
  transition: color var(--transition);
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 180ms ease;
}
.nav-link:hover {
  color: var(--primary);
}
.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.header-tools {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.search-box {
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  height: 36px;
  background: var(--bg);
}
.search-box input {
  width: 160px;
  padding: 0 12px;
  font-size: 13px;
  color: var(--text);
  background: transparent;
}
.search-box input::placeholder {
  color: var(--text-2);
}
.search-box button {
  background: var(--dark);
  color: var(--text-light);
  font-size: 13px;
  padding: 0 14px;
  height: 100%;
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition);
}
.search-box button:hover {
  background: var(--primary);
  color: var(--dark);
}
.notice-link {
  font-size: 13px;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition);
  white-space: nowrap;
}
.notice-link .dot {
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
}
.notice-link:hover {
  color: var(--primary);
}
.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 6px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}
.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  transition: var(--transition);
}
@media (max-width: 1024px) {
  .header-inner {
    gap: 16px;
  }
  .nav {
    gap: 16px;
  }
  .search-box input {
    width: 120px;
  }
}

/* ===================== Hero ===================== */
.hero {
  position: relative;
  padding: 72px 0 88px;
  background: var(--dark);
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background-image: url('/assets/images/backpic/back-1.jpg');
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, rgba(30,28,25,.96) 0%, rgba(30,28,25,.85) 45%, rgba(30,28,25,.65) 100%);
  z-index: 1;
}
.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.15fr .85fr;
  gap: 56px;
  align-items: center;
}
.hero-content {
  color: var(--text-light);
}
.hero-content h1 {
  font-size: 40px;
  line-height: 1.3;
  font-weight: 800;
  color: var(--white);
  margin-bottom: 16px;
  letter-spacing: .5px;
}
.hero-content h1 em {
  font-style: normal;
  color: var(--primary);
}
.hero-content .hero-desc {
  font-size: 15px;
  line-height: 1.8;
  color: #C7C0B4;
  max-width: 480px;
  margin-bottom: 32px;
}
.hero-ctas {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
  margin-bottom: 44px;
}
.hero-stats {
  display: flex;
  gap: 40px;
  padding-top: 32px;
  border-top: 1px solid var(--line-dark);
}
.hero-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.hero-stat .num {
  font-size: 26px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}
.hero-stat .label {
  font-size: 13px;
  color: var(--text-light-2);
}
.manual-card {
  background: var(--white);
  border-radius: var(--radius-card);
  box-shadow: 0 16px 40px rgba(0,0,0,.35);
  overflow: hidden;
  max-width: 400px;
  margin-left: auto;
  width: 100%;
}
.manual-cover {
  background: linear-gradient(135deg, #1E1C19 0%, #2E2A24 75%, #C9971C 160%);
  padding: 28px 26px 22px;
  color: var(--text-light);
  position: relative;
  border-bottom: 3px solid var(--primary);
}
.manual-cover::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 90px;
  height: 90px;
  background: url('/assets/images/coverpic/cover-1.webp') center/cover no-repeat;
  opacity: .35;
  border-radius: 0 0 0 12px;
}
.manual-cover .manual-title {
  font-size: 22px;
  font-weight: 800;
  color: #fff;
  line-height: 1.4;
  margin-bottom: 6px;
  position: relative;
}
.manual-cover .manual-sub {
  font-size: 13px;
  color: var(--primary);
  font-weight: 600;
  position: relative;
}
.manual-toc {
  padding: 18px 26px;
  border-bottom: 1px solid var(--line);
}
.manual-toc .toc-title {
  font-size: 12px;
  font-weight: 700;
  color: var(--text-2);
  letter-spacing: 1px;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.manual-toc ul {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.manual-toc li {
  font-size: 13px;
  color: var(--text);
  padding-left: 16px;
  position: relative;
}
.manual-toc li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--primary);
  border-radius: 2px;
}
.manual-form {
  padding: 18px 26px 24px;
}
.manual-form input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-btn);
  padding: 10px 14px;
  font-size: 14px;
  margin-bottom: 12px;
  background: var(--bg);
  transition: var(--transition);
}
.manual-form input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(201,151,28,.15);
  background: #fff;
}
.form-note {
  font-size: 12px;
  color: var(--text-2);
  margin-top: 10px;
  text-align: center;
}
.form-success {
  background: var(--success);
  color: #fff;
  font-size: 13px;
  padding: 10px;
  border-radius: var(--radius-btn);
  text-align: center;
  margin-bottom: 12px;
  display: none;
}

/* ===================== 板块通用 ===================== */
.section {
  padding: 80px 0;
}
.section-head {
  max-width: 700px;
  margin-bottom: 48px;
}
.section-head.center {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}
.section-head h2 {
  font-size: 30px;
  font-weight: 700;
  line-height: 1.35;
  margin-bottom: 14px;
  color: var(--text);
}
.section-head h2 em {
  font-style: normal;
  color: var(--primary);
}
.section-head p {
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.7;
}
.section-dark {
  background: var(--dark);
}
.section-dark .section-head h2 {
  color: var(--text-light);
}
.section-dark .section-head p {
  color: var(--text-light-2);
}
.section-white {
  background: var(--white);
}
.section-bg {
  background: var(--bg);
}

/* ===================== 功能章节 ===================== */
.features {
  padding: 80px 0;
  background: var(--bg);
}
.feature-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--white);
  border-radius: var(--radius-card);
  padding: 32px 24px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  border: 1px solid transparent;
}
.feature-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(201,151,28,.35);
}
.feature-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(201,151,28,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
}
.feature-icon svg {
  width: 24px;
  height: 24px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 1.8;
}
.feature-card h3 {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--text);
}
.feature-card p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.65;
}

/* ===================== 数据指标 ===================== */
.stats-section {
  background: var(--dark);
  padding: 64px 0;
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.stat-item {
  text-align: center;
  padding: 16px 20px;
  position: relative;
}
.stat-item + .stat-item::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 1px;
  height: 56px;
  background: rgba(201,151,28,.25);
}
.stat-item .num {
  font-size: 32px;
  font-weight: 800;
  color: var(--primary);
  display: block;
  line-height: 1.2;
  margin-bottom: 6px;
}
.stat-item .label {
  font-size: 14px;
  color: var(--text-light-2);
}

/* ===================== 热门片源推荐 ===================== */
.hot-section {
  padding: 80px 0;
  background: var(--white);
}
.hot-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.hot-card {
  background: var(--bg);
  border-radius: var(--radius-card);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
  border: 1px solid var(--line);
}
.hot-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(201,151,28,.4);
}
.hot-card .thumb {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
  background: var(--dark-2);
}
.hot-card .thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 220ms ease;
}
.hot-card:hover .thumb img {
  transform: scale(1.04);
}
.hot-card .tag-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  background: var(--accent);
  color: #fff;
  font-size: 11px;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 4px;
  z-index: 2;
}
.hot-card .info {
  padding: 18px 20px 20px;
}
.hot-card .info h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
  color: var(--text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.hot-card .info .meta {
  font-size: 13px;
  color: var(--text-2);
  display: flex;
  gap: 8px;
  align-items: center;
  flex-wrap: wrap;
}
.hot-card .info .meta .tag {
  background: rgba(201,151,28,.1);
  color: var(--primary-dark);
  padding: 2px 8px;
  border-radius: 4px;
  font-weight: 500;
}

/* ===================== 客户证言 ===================== */
.testimonials {
  padding: 80px 0;
  background: var(--bg);
}
.testimonial-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.testimonial-card {
  background: var(--white);
  border-radius: var(--radius-card);
  padding: 32px 28px;
  box-shadow: var(--shadow-card);
  position: relative;
  border-top: 3px solid var(--primary);
  transition: var(--transition);
}
.testimonial-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.testimonial-card .quote {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.75;
  margin-bottom: 20px;
}
.testimonial-card .user {
  display: flex;
  align-items: center;
  gap: 12px;
}
.testimonial-card .avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--dark);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  font-size: 16px;
}
.testimonial-card .user-name {
  font-size: 14px;
  font-weight: 700;
  color: var(--text);
}
.testimonial-card .user-role {
  font-size: 12px;
  color: var(--text-2);
}

/* ===================== 资讯更新 ===================== */
.updates-section {
  padding: 80px 0;
  background: var(--white);
}
.updates-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: 48px;
  align-items: start;
}
.update-list {
  display: flex;
  flex-direction: column;
}
.update-item {
  display: flex;
  align-items: baseline;
  gap: 20px;
  padding: 16px 0;
  border-bottom: 1px solid var(--line);
  transition: var(--transition);
  border-radius: 4px;
}
.update-item:first-child {
  padding-top: 0;
}
.update-item:hover {
  background: rgba(201,151,28,.04);
  padding-left: 8px;
  padding-right: 8px;
}
.update-item .date {
  font-size: 13px;
  color: var(--text-2);
  flex-shrink: 0;
  font-variant-numeric: tabular-nums;
}
.update-item .title {
  font-size: 15px;
  color: var(--text);
  font-weight: 500;
  line-height: 1.5;
}
.update-item:hover .title {
  color: var(--primary);
}
.update-side {
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.side-card {
  background: var(--bg);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  border: 1px solid var(--line);
}
.side-card h3 {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--text);
  padding-bottom: 12px;
  border-bottom: 2px solid var(--primary);
  display: inline-block;
}
.side-card ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.side-card li a {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 14px;
  color: var(--text-2);
  padding: 6px 0;
  border-radius: 4px;
  transition: var(--transition);
}
.side-card li a:hover {
  color: var(--primary);
  padding-left: 6px;
}
.side-card li a .res {
  font-size: 12px;
  background: rgba(201,151,28,.12);
  color: var(--primary-dark);
  padding: 1px 6px;
  border-radius: 4px;
  font-weight: 500;
}
.side-card .hot-num {
  color: var(--accent);
  font-weight: 700;
  font-size: 14px;
  margin-right: 6px;
}

/* ===================== FAQ ===================== */
.faq-section {
  padding: 80px 0;
  background: var(--dark);
}
.faq-section .section-head h2 {
  color: var(--text-light);
}
.faq-section .section-head p {
  color: var(--text-light-2);
}
.faq-list {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--line-dark);
  border-radius: var(--radius-card);
  margin-bottom: 14px;
  overflow: hidden;
  transition: var(--transition);
}
.faq-item.active {
  border-color: rgba(201,151,28,.5);
  background: rgba(255,255,255,.07);
}
.faq-q {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 20px 24px;
  cursor: pointer;
  color: var(--text-light);
  font-size: 16px;
  font-weight: 600;
  transition: var(--transition);
}
.faq-q .q-icon {
  width: 26px;
  height: 26px;
  background: var(--primary);
  color: var(--dark);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 800;
  flex-shrink: 0;
}
.faq-q .arrow {
  margin-left: auto;
  width: 10px;
  height: 10px;
  border-right: 2px solid var(--text-light-2);
  border-bottom: 2px solid var(--text-light-2);
  transform: rotate(45deg);
  transition: transform 180ms ease;
  flex-shrink: 0;
}
.faq-item.active .arrow {
  transform: rotate(-135deg);
}
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 180ms ease;
}
.faq-a-inner {
  padding: 0 24px 20px 64px;
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-light-2);
}

/* ===================== CTA ===================== */
.cta-section {
  padding: 64px 0;
  background: var(--dark);
  border-top: 1px solid var(--line-dark);
  border-bottom: 1px solid var(--line-dark);
}
.cta-box {
  background: linear-gradient(135deg, var(--primary) 0%, #E0AE32 100%);
  border-radius: 16px;
  padding: 48px 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  box-shadow: 0 8px 32px rgba(201,151,28,.3);
}
.cta-box h3 {
  font-size: 26px;
  font-weight: 800;
  color: var(--dark);
  line-height: 1.35;
  margin-bottom: 8px;
}
.cta-box p {
  font-size: 15px;
  color: rgba(30,28,25,.75);
  font-weight: 500;
}
.cta-box .btn {
  background: var(--dark);
  color: var(--primary);
  white-space: nowrap;
  padding: 14px 32px;
  font-size: 16px;
}
.cta-box .btn:hover {
  background: #000;
  transform: scale(1.03);
}

/* ===================== 联系 ===================== */
.contact-section {
  padding: 80px 0;
  background: var(--bg);
}
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 48px;
  align-items: start;
}
.contact-form {
  background: var(--white);
  border-radius: var(--radius-card);
  padding: 36px;
  box-shadow: var(--shadow-card);
}
.contact-form .form-group {
  margin-bottom: 20px;
}
.contact-form label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--text);
}
.contact-form input,
.contact-form select,
.contact-form textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: var(--radius-btn);
  padding: 10px 14px;
  font-size: 14px;
  background: var(--bg);
  transition: var(--transition);
}
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(201,151,28,.12);
  background: #fff;
}
.contact-form textarea {
  resize: vertical;
  min-height: 100px;
}
.contact-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.contact-info-item {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  background: var(--white);
  border-radius: var(--radius-card);
  padding: 20px 24px;
  box-shadow: var(--shadow-card);
}
.contact-info-item .icon {
  width: 40px;
  height: 40px;
  border-radius: 8px;
  background: rgba(201,151,28,.1);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-info-item .icon svg {
  width: 18px;
  height: 18px;
  stroke: var(--primary);
  fill: none;
  stroke-width: 1.8;
}
.contact-info-item h4 {
  font-size: 15px;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 2px;
}
.contact-info-item p {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.5;
}

/* ===================== 页脚 ===================== */
.site-footer {
  background: var(--dark);
  color: var(--text-light-2);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid var(--line-dark);
}
.footer-brand .logo {
  color: var(--text-light);
  margin-bottom: 14px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-light-2);
  max-width: 260px;
}
.footer-col h3 {
  font-size: 15px;
  color: var(--white);
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-col ul {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-col ul a {
  font-size: 13px;
  color: var(--text-light-2);
  transition: color var(--transition);
}
.footer-col ul a:hover {
  color: var(--primary);
}
.footer-bottom {
  padding: 20px 0;
  font-size: 13px;
  color: var(--text-light-2);
  display: flex;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}
.footer-bottom a {
  color: var(--text-light-2);
}
.footer-bottom a:hover {
  color: var(--primary);
}

/* ===================== 响应式 ===================== */
@media (max-width: 1024px) {
  .header-tools {
    gap: 8px;
  }
  .search-box input {
    width: 120px;
  }
  .feature-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .hot-track {
    grid-template-columns: repeat(2, 1fr);
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }
  .stat-item + .stat-item::before {
    display: none;
  }
  .updates-layout {
    grid-template-columns: 1fr;
  }
  .update-side {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
  }
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-layout {
    grid-template-columns: 1fr;
  }
  .cta-box {
    flex-direction: column;
    text-align: center;
    padding: 36px 28px;
  }
}
@media (max-width: 768px) {
  .site-header {
    height: 52px;
  }
  .menu-toggle {
    display: flex;
    margin-left: auto;
  }
  .nav {
    display: none;
    position: absolute;
    top: 52px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    padding: 16px 24px 20px;
    gap: 4px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 8px 24px rgba(0,0,0,.06);
  }
  .nav.open {
    display: flex;
  }
  .nav-link {
    padding: 12px 0;
    font-size: 15px;
    border-bottom: 1px solid var(--line);
  }
  .nav-link:last-child {
    border-bottom: none;
  }
  .header-tools {
    display: none;
  }
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .manual-card {
    margin: 0 auto;
    max-width: 100%;
  }
  .hero-content h1 {
    font-size: 26px;
  }
  .hero-stats {
    flex-wrap: wrap;
    gap: 20px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .testimonial-grid {
    grid-template-columns: 1fr;
  }
  .update-side {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }
  .section {
    padding: 48px 0;
  }
  .section-head h2 {
    font-size: 22px;
  }
  .hero {
    padding: 48px 0 56px;
  }
  .cta-section {
    padding: 40px 0;
  }
  .cta-box h3 {
    font-size: 20px;
  }
  .cta-box .btn {
    padding: 12px 24px;
    font-size: 15px;
  }
  .contact-form {
    padding: 24px 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .container {
    padding: 0 16px;
  }
  .notice-bar {
    font-size: 12px;
    padding: 8px 12px;
  }
}
@media (max-width: 520px) {
  .hot-track {
    grid-template-columns: 1fr;
  }
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .stat-item .num {
    font-size: 24px;
  }
  .feature-grid {
    grid-template-columns: 1fr;
  }
  .hero-ctas .btn {
    width: 100%;
  }
  .cta-box {
    padding: 28px 20px;
  }
  .manual-cover .manual-title {
    font-size: 18px;
  }
  .update-item {
    flex-direction: column;
    gap: 4px;
    padding: 14px 0;
  }
  .update-item .date {
    font-size: 12px;
    color: var(--primary-dark);
  }
  .update-item {
    padding-left: 4px;
  }
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root {
  --primary: #C9971C;
  --primary-dark: #A87F14;
  --accent: #D9480F;
  --dark: #1E1C19;
  --dark-2: #2E2A24;
  --bg: #F7F4EE;
  --white: #FFFFFF;
  --text: #1E1C19;
  --text-2: #6B655C;
  --text-light: #F5F1E8;
  --text-light-2: #A8A29A;
  --line: #E8E2D8;
  --line-dark: rgba(255,255,255,.12);
  --success: #2F7D4F;
  --warning: #D9480F;
  --info: #3B6FA0;
  --radius-card: 12px;
  --radius-btn: 8px;
  --shadow-card: 0 2px 12px rgba(30,28,25,.06);
  --shadow-hover: 0 8px 24px rgba(30,28,25,.10);
  --font: -apple-system, "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
  --transition: 120ms ease;
}

/* ============ Reset / Base ============ */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  font-variant-numeric: tabular-nums;
}
img {
  max-width: 100%;
  display: block;
}
a {
  color: inherit;
  text-decoration: none;
}
button,
input,
select,
textarea {
  font-family: inherit;
  font-size: inherit;
  line-height: inherit;
  border: none;
  outline: none;
  background: none;
}
ul,
ol {
  list-style: none;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}
.section-title {
  font-size: 30px;
  font-weight: 800;
  color: var(--text);
  line-height: 1.35;
  margin-bottom: 12px;
}
.section-sub {
  font-size: 15px;
  color: var(--text-2);
  max-width: 620px;
  line-height: 1.7;
}

/* ============ 按钮 ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: 15px;
  cursor: pointer;
  transition: var(--transition);
  line-height: 1.4;
  text-align: center;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: var(--dark);
}
.btn-primary:hover {
  background: var(--primary-dark);
  color: var(--dark);
}
.btn-outline {
  background: transparent;
  border-color: rgba(255,255,255,.55);
  color: var(--text-light);
}
.btn-outline:hover {
  background: var(--dark);
  border-color: var(--dark);
  color: var(--primary);
}
.btn-dark-outline {
  background: transparent;
  border-color: var(--text);
  color: var(--text);
}
.btn-dark-outline:hover {
  background: var(--dark);
  border-color: var(--dark);
  color: var(--primary);
}
.btn-block {
  width: 100%;
}
.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}

/* ============ 公告条 ============ */
.notice-bar {
  background: var(--dark);
  color: var(--text-light-2);
  font-size: 13px;
  padding: 8px 0;
}
.notice-bar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
}
.notice-bar a {
  color: var(--text-light);
  border-bottom: 1px solid rgba(255,255,255,.3);
  transition: var(--transition);
}
.notice-bar a:hover {
  color: var(--primary);
  border-bottom-color: var(--primary);
}

/* ============ 导航 ============ */
.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--line);
  position: sticky;
  top: 0;
  z-index: 100;
  height: 60px;
  display: flex;
  align-items: center;
}
.header-inner {
  display: flex;
  align-items: center;
  gap: 32px;
  width: 100%;
}
.logo {
  font-size: 20px;
  font-weight: 800;
  color: var(--text);
  white-space: nowrap;
  display: flex;
  align-items: baseline;
  gap: 6px;
  flex-shrink: 0;
}
.logo em {
  font-style: normal;
  color: var(--primary);
}
.logo-sub {
  font-size: 12px;
  color: var(--text-2);
  font-weight: 400;
}
.nav {
  display: flex;
  gap: 24px;
  flex: 1;
}
.nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
  position: relative;
  padding: 20px 0;
  transition: color var(--transition);
  white-space: nowrap;
}
.nav-link::after {
  content: '';
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transition: transform 180ms ease;
}
.nav-link:hover {
  color: var(--primary);
}
.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}
.nav-link.active {
  color: var(--primary);
  font-weight: 600;
}
.header-tools {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-shrink: 0;
}
.search-box {
  display: flex;
  align-items: center;
  border: 1px solid var(--line);
  border-radius: 6px;
  overflow: hidden;
  height: 36px;
  background: var(--bg);
}
.search-box input {
  width: 160px;
  padding: 0 12px;
  font-size: 13px;
  color: var(--text);
  background: transparent;
}
.search-box input::placeholder {
  color: var(--text-2);
}
.search-box button {
  background: var(--dark);
  color: var(--text-light);
  font-size: 13px;
  padding: 0 14px;
  height: 100%;
  cursor: pointer;
  font-weight: 500;
  transition: var(--transition);
}
.search-box button:hover {
  background: var(--primary);
  color: var(--dark);
}
.header-notice {
  font-size: 13px;
  color: var(--text-2);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.header-notice .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  display: inline-block;
}
.header-notice:hover {
  color: var(--primary);
}
.menu-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border-radius: 6px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
  flex-shrink: 0;
}
.menu-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text);
  transition: var(--transition);
}
.m-search {
  display: none;
  margin-top: 12px;
}

/* ============ 页头横幅 ============ */
.page-banner {
  background: var(--bg);
  padding: 56px 0 48px;
  border-bottom: 1px solid var(--line);
}
.breadcrumb {
  font-size: 13px;
  color: var(--text-2);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}
.breadcrumb a {
  color: var(--text-2);
  transition: var(--transition);
}
.breadcrumb a:hover {
  color: var(--primary);
}
.breadcrumb .sep {
  color: var(--line);
}
.page-banner h1 {
  font-size: 34px;
  font-weight: 800;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 14px;
  letter-spacing: .5px;
}
.page-banner h1 em {
  font-style: normal;
  color: var(--primary);
}
.page-banner-sub {
  font-size: 15px;
  color: var(--text-2);
  max-width: 680px;
  line-height: 1.8;
}
.banner-ctas {
  display: flex;
  gap: 12px;
  margin-top: 24px;
  flex-wrap: wrap;
}

/* ============ 数据带 ============ */
.stats-band {
  background: var(--dark);
  padding: 32px 0;
}
.stats-inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.stat-item {
  padding: 12px 28px;
  border-left: 1px solid var(--line-dark);
}
.stat-item:first-child {
  border-left: none;
  padding-left: 0;
}
.stat-num {
  font-size: 30px;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
}
.stat-label {
  font-size: 13px;
  color: var(--text-light-2);
  margin-top: 4px;
}

/* ============ 筛选工具条 ============ */
.filter-section {
  padding: 32px 0 8px;
}
.filter-bar {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  align-items: center;
}
.filter-label {
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  margin-right: 4px;
}
.filter-btn {
  padding: 8px 18px;
  border-radius: 999px;
  font-size: 13px;
  font-weight: 500;
  color: var(--text-2);
  background: var(--white);
  border: 1px solid var(--line);
  cursor: pointer;
  transition: var(--transition);
  white-space: nowrap;
}
.filter-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--dark);
  font-weight: 600;
}

/* ============ 分类卡片 ============ */
.cat-section {
  padding: 16px 0 32px;
}
.cat-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.cat-item {
  background: var(--white);
  border-radius: var(--radius-card);
  border: 1px solid var(--line);
  box-shadow: var(--shadow-card);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.cat-item:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: var(--primary);
}
.cat-thumb {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--dark-2);
}
.cat-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 200ms ease;
}
.cat-item:hover .cat-thumb img {
  transform: scale(1.03);
}
.cat-body {
  padding: 16px 18px 18px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}
.cat-title-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
}
.cat-title {
  font-size: 18px;
  font-weight: 700;
  color: var(--text);
}
.cat-arrow {
  color: var(--text-2);
  font-size: 18px;
  line-height: 1;
  transition: var(--transition);
  flex-shrink: 0;
}
.cat-item:hover .cat-arrow {
  color: var(--primary);
  transform: translateX(4px);
}
.cat-desc {
  font-size: 14px;
  color: var(--text-2);
  line-height: 1.65;
}
.cat-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: auto;
  padding-top: 8px;
}
.tag {
  font-size: 12px;
  font-weight: 500;
  color: var(--text-2);
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 3px 10px;
  white-space: nowrap;
}
.cat-meta {
  font-size: 12px;
  color: var(--text-2);
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 2px;
}
.cat-meta .dot {
  width: 4px;
  height: 4px;
  border-radius: 50%;
  background: var(--primary);
  display: inline-block;
}

/* 横向大卡 */
.cat-item.featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 380px 1fr;
}
.cat-item.featured .cat-thumb {
  aspect-ratio: auto;
  height: 100%;
  min-height: 210px;
}
.cat-item.featured .cat-body {
  padding: 26px 30px;
  gap: 10px;
}
.cat-item.featured .cat-title {
  font-size: 22px;
}
.cat-item.featured .cat-desc {
  font-size: 15px;
}
.cat-item.featured .cat-tags {
  padding-top: 12px;
}

/* ============ 分页 ============ */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 24px 0 12px;
  flex-wrap: wrap;
}
.page-btn {
  min-width: 38px;
  height: 38px;
  border-radius: var(--radius-btn);
  border: 1px solid var(--line);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  color: var(--text);
  background: var(--white);
  transition: var(--transition);
  padding: 0 14px;
  cursor: pointer;
}
.page-btn:hover {
  border-color: var(--primary);
  color: var(--primary);
}
.page-btn.active {
  background: var(--primary);
  color: var(--dark);
  font-weight: 700;
  border-color: var(--primary);
  cursor: default;
}

/* ============ 提示条 ============ */
.tip-bar {
  margin: 12px 0 16px;
  background: #FBF4E3;
  border: 1px solid rgba(201,151,28,.28);
  border-radius: var(--radius-card);
  padding: 14px 18px;
  font-size: 13px;
  color: var(--text-2);
  line-height: 1.7;
}
.tip-bar strong {
  color: var(--dark);
}

/* ============ FAQ ============ */
.faq-section {
  padding: 72px 0;
  background: var(--white);
}
.faq-head {
  margin-bottom: 28px;
}
.faq-wrap {
  max-width: 860px;
}
.faq-item {
  border-bottom: 1px solid var(--line);
}
.faq-item:first-child {
  border-top: 1px solid var(--line);
}
.faq-q {
  display: flex;
  gap: 14px;
  padding: 18px 0;
  cursor: pointer;
  font-size: 16px;
  font-weight: 600;
  color: var(--text);
  align-items: flex-start;
  transition: color var(--transition);
}
.faq-q:hover {
  color: var(--primary);
}
.faq-q .q-mark {
  width: 26px;
  height: 26px;
  background: var(--primary);
  color: var(--dark);
  font-size: 13px;
  font-weight: 800;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.faq-a {
  padding: 0 0 18px 40px;
  font-size: 15px;
  color: var(--text-2);
  line-height: 1.75;
  display: none;
}
.faq-item.open .faq-a {
  display: block;
}

/* ============ CTA ============ */
.cta-block {
  background: var(--dark);
  border-top: 4px solid var(--primary);
  padding: 56px 0 60px;
}
.cta-inner {
  text-align: center;
  max-width: 680px;
  margin: 0 auto;
}
.cta-inner h2 {
  color: var(--white);
  font-size: 26px;
  font-weight: 800;
  line-height: 1.4;
  margin-bottom: 12px;
}
.cta-inner h2 em {
  font-style: normal;
  color: var(--primary);
}
.cta-inner p {
  color: var(--text-light-2);
  font-size: 15px;
  margin-bottom: 26px;
  line-height: 1.7;
}
.cta-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============ 页脚 ============ */
.site-footer {
  background: var(--dark);
  color: var(--text-light-2);
  padding: 56px 0 0;
  border-top: 1px solid transparent;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr 1.2fr;
  gap: 40px;
  padding-bottom: 40px;
}
.footer-brand .logo {
  margin-bottom: 12px;
}
.footer-brand p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-light-2);
  max-width: 340px;
}
.footer-col h3 {
  font-size: 15px;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 14px;
}
.footer-col ul li {
  margin-bottom: 8px;
}
.footer-col ul a {
  font-size: 14px;
  color: var(--text-light-2);
  transition: var(--transition);
}
.footer-col ul a:hover {
  color: var(--primary);
}
.footer-col ul li {
  font-size: 14px;
  color: var(--text-light-2);
}
.footer-bottom {
  border-top: 1px solid var(--line-dark);
  padding: 20px 0;
  display: flex;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  font-size: 13px;
  color: var(--text-light-2);
}
.footer-bottom a {
  color: var(--text-light-2);
  transition: var(--transition);
}
.footer-bottom a:hover {
  color: var(--primary);
}

/* ============ 响应式 ============ */
@media (max-width: 1024px) {
  .header-inner {
    gap: 16px;
  }
  .nav {
    gap: 16px;
  }
  .search-box input {
    width: 120px;
  }
  .header-notice {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1.6fr 1fr 1fr 1fr;
    gap: 32px;
  }
  .footer-col:last-child {
    grid-column: 2 / -1;
  }
}

@media (max-width: 768px) {
  .site-header {
    height: 52px;
  }
  .menu-toggle {
    display: flex;
  }
  .nav {
    display: none;
    position: absolute;
    top: 52px;
    left: 0;
    right: 0;
    background: var(--white);
    flex-direction: column;
    gap: 0;
    padding: 8px 24px 20px;
    border-bottom: 1px solid var(--line);
    box-shadow: 0 12px 24px rgba(30,28,25,.08);
    z-index: 99;
  }
  .nav.open {
    display: flex;
  }
  .nav-link {
    padding: 12px 0;
    border-bottom: 1px solid var(--line);
  }
  .nav-link::after {
    display: none;
  }
  .nav-link.active {
    color: var(--primary);
  }
  .m-search {
    display: block;
  }
  .m-search form {
    display: flex;
    border: 1px solid var(--line);
    border-radius: 6px;
    overflow: hidden;
    height: 38px;
    background: var(--bg);
  }
  .m-search input {
    flex: 1;
    padding: 0 12px;
    font-size: 14px;
    color: var(--text);
    background: transparent;
  }
  .m-search input::placeholder {
    color: var(--text-2);
  }
  .m-search button {
    background: var(--dark);
    color: var(--text-light);
    font-size: 13px;
    padding: 0 16px;
    cursor: pointer;
    font-weight: 500;
  }
  .header-tools .btn {
    display: none;
  }
  .search-box {
    display: none;
  }
  .page-banner {
    padding: 40px 0 32px;
  }
  .page-banner h1 {
    font-size: 28px;
  }
  .stats-inner {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .stat-item {
    padding: 8px 12px;
    border-left: none;
    background: rgba(255,255,255,.04);
    border-radius: 8px;
  }
  .stats-band {
    padding: 24px 0;
  }
  .cat-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
  }
  .cat-item.featured {
    grid-column: auto;
    grid-template-columns: 1fr;
  }
  .cat-item.featured .cat-thumb {
    min-height: 0;
    aspect-ratio: 16 / 9;
  }
  .cat-item.featured .cat-body {
    padding: 18px 20px 20px;
  }
  .faq-section {
    padding: 48px 0;
  }
  .faq-a {
    padding-left: 0;
  }
  .cta-block {
    padding: 40px 0;
  }
  .cta-inner h2 {
    font-size: 22px;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 28px;
  }
  .footer-brand {
    grid-column: 1 / -1;
  }
  .footer-col:last-child {
    grid-column: auto;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
    justify-content: center;
    align-items: center;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .cat-grid {
    grid-template-columns: 1fr;
  }
  .page-banner h1 {
    font-size: 26px;
  }
  .filter-bar {
    flex-wrap: nowrap;
    overflow-x: auto;
    padding-bottom: 8px;
    -webkit-overflow-scrolling: touch;
  }
  .filter-btn {
    flex-shrink: 0;
  }
  .stat-num {
    font-size: 24px;
  }
  .section-title {
    font-size: 24px;
  }
  .cta-actions {
    flex-direction: column;
  }
  .cta-actions .btn {
    width: 100%;
  }
}