/* roulang page: index */
:root {
  --primary: #2E5A8E;
  --primary-dark: #1F4172;
  --accent: #C8983A;
  --accent-dark: #AD7E2C;
  --bg: #F5F8FC;
  --card-bg: #FFFFFF;
  --text: #1F2A37;
  --text-secondary: #5B6B7E;
  --border: #E3EAF2;
  --info-bg: #F0F5FA;
  --footer-bg: #16324F;
  --radius: 12px;
  --radius-btn: 8px;
  --shadow: 0 8px 24px rgba(23, 55, 94, 0.08);
  --shadow-hover: 0 14px 36px rgba(23, 55, 94, 0.14);
  --shadow-btn: 0 4px 12px rgba(200, 152, 58, 0.25);
  --transition: 0.25s ease;
  --font-stack: "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.75;
  font-size: 0.9375rem;
  -webkit-font-smoothing: antialiased;
}

body, h1, h2, h3, h4, h5, h6, p, ul, ol, figure, blockquote {
  margin: 0;
  padding: 0;
}

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

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

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

button, input, select, textarea {
  font-family: var(--font-stack);
  font-size: inherit;
}

:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
  box-shadow: 0 0 0 4px rgba(46, 90, 142, 0.15);
}

.container {
  max-width: 1280px;
  padding-left: 24px;
  padding-right: 24px;
}

/* ===== 按钮 ===== */
.btn-gold {
  background: var(--accent);
  color: #FFFFFF;
  border: 1px solid var(--accent);
  border-radius: var(--radius-btn);
  padding: 12px 28px;
  font-weight: 700;
  display: inline-block;
  transition: all var(--transition);
  box-shadow: var(--shadow-btn);
  text-align: center;
}

.btn-gold:hover, .btn-gold:focus-visible {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  color: #FFFFFF;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(200, 152, 58, 0.32);
}

.btn-gold:active {
  transform: translateY(0);
  box-shadow: none;
}

.btn-outline-blue {
  background: transparent;
  color: var(--primary);
  border: 1px solid var(--primary);
  border-radius: var(--radius-btn);
  padding: 12px 28px;
  font-weight: 700;
  display: inline-block;
  transition: all var(--transition);
  text-align: center;
}

.btn-outline-blue:hover, .btn-outline-blue:focus-visible {
  background: rgba(46, 90, 142, 0.08);
  border-color: var(--primary-dark);
  color: var(--primary-dark);
  transform: translateY(-1px);
}

.btn-outline-blue:active {
  transform: translateY(0);
}

/* ===== 刊头导航 ===== */
.site-header {
  background: #FFFFFF;
  border-bottom: 1px solid var(--primary);
  position: relative;
}

.site-header::after {
  content: "";
  display: block;
  height: 3px;
  background: var(--accent);
  position: absolute;
  bottom: -3px;
  left: 0;
  right: 0;
}

.masthead {
  padding-top: 16px;
  padding-bottom: 14px;
}

.masthead-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px 16px;
}

.brand {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1.3;
}

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

.brand .brand-sep {
  color: var(--accent);
  margin: 0 2px;
}

.brand .brand-sub {
  color: var(--text-secondary);
  font-weight: 600;
}

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

.masthead-meta {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.masthead-meta::before {
  content: "●";
  color: var(--accent);
  margin-right: 6px;
  font-size: 0.625rem;
  vertical-align: middle;
}

.masthead-nav-wrap {
  border-top: 1px solid var(--border);
  margin-top: 10px;
  padding-top: 10px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.masthead-nav {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 0;
}

.masthead-nav a {
  color: var(--text);
  font-weight: 500;
  font-size: 0.9375rem;
  padding: 4px 16px;
  position: relative;
  transition: color 0.2s ease;
}

.masthead-nav a + a::before {
  content: "|";
  color: var(--border);
  margin-right: 0;
  font-weight: 300;
}

.masthead-nav a:hover {
  color: var(--primary);
  font-weight: 700;
}

.masthead-nav a:hover::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: -2px;
  height: 2px;
  background: var(--primary);
}

.masthead-nav .active {
  color: var(--primary);
  font-weight: 700;
}

.masthead-nav .active::after {
  content: "";
  position: absolute;
  left: 16px;
  right: 16px;
  bottom: -2px;
  height: 2px;
  background: var(--primary);
}

.mobile-toggle {
  display: none;
  background: none;
  border: none;
  width: 40px;
  height: 36px;
  padding: 6px;
  border-radius: 6px;
  cursor: pointer;
}

.mobile-toggle span {
  display: block;
  height: 2px;
  background: var(--primary);
  margin: 4px 0;
  border-radius: 2px;
  transition: 0.3s;
}

.mobile-menu {
  display: none;
}

/* ===== Hero ===== */
.hero-section {
  background: linear-gradient(180deg, #EFF4FA 0%, var(--bg) 100%);
  padding: 72px 0 56px;
  position: relative;
  overflow: hidden;
}

.hero-section::before {
  content: "";
  position: absolute;
  top: -120px;
  right: -80px;
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(46,90,142,0.05) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-block;
  background: rgba(200,152,58,0.12);
  color: var(--accent-dark);
  font-size: 0.8125rem;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 999px;
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}

.hero-section h1 {
  font-size: 2.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.3;
  color: var(--text);
  margin-bottom: 20px;
  max-width: 560px;
}

.hero-section h1 .text-accent {
  color: var(--accent);
}

.hero-lead {
  font-size: 1rem;
  font-weight: 400;
  color: var(--text-secondary);
  line-height: 1.8;
  max-width: 540px;
  margin-bottom: 32px;
}

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

.hero-media {
  position: relative;
  padding: 20px 0 20px 20px;
}

.hero-media .cover-image {
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  width: 100%;
  height: 380px;
  object-fit: cover;
  position: relative;
  z-index: 2;
}

.hero-back-block {
  position: absolute;
  right: 8px;
  bottom: 8px;
  width: 85%;
  height: 85%;
  background: rgba(200, 152, 58, 0.12);
  border-radius: var(--radius);
  z-index: 1;
}

.hero-badge-circle {
  position: absolute;
  top: 0;
  left: 0;
  width: 74px;
  height: 74px;
  background: var(--accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  line-height: 1.2;
  text-align: center;
  z-index: 3;
  box-shadow: var(--shadow-btn);
}

.hero-stats {
  margin-top: 56px;
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  display: flex;
  padding: 24px 32px;
  gap: 32px;
}

.hero-stats .stat-item {
  flex: 1;
  text-align: center;
  border-right: 1px solid var(--border);
}

.hero-stats .stat-item:last-child {
  border-right: none;
}

.hero-stats .stat-num {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--primary);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.hero-stats .stat-label {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  margin-top: 4px;
}

/* ===== 区块头 ===== */
.section-badge {
  display: inline-block;
  background: rgba(46, 90, 142, 0.08);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: 0.04em;
  margin-bottom: 14px;
}

.section-head {
  margin-bottom: 48px;
}

.section-head .section-bar {
  display: block;
  width: 48px;
  height: 4px;
  background: var(--accent);
  border-radius: 2px;
  margin-bottom: 16px;
}

.section-head h2 {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text);
  line-height: 1.3;
  margin-bottom: 12px;
}

.section-head p {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  max-width: 620px;
  line-height: 1.7;
}

/* ===== 指标看板 ===== */
.stats-section {
  padding: 80px 0;
}

.stats-section .section-head h2 {
  color: var(--text);
}

.stats-grid .stats-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
  height: 100%;
  transition: box-shadow var(--transition), transform var(--transition);
  position: relative;
  overflow: hidden;
}

.stats-grid .stats-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 4px;
  height: 100%;
  background: var(--accent);
  opacity: 0;
  transition: opacity var(--transition);
}

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

.stats-grid .stats-card:hover::before {
  opacity: 1;
}

.stat-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  background: rgba(200, 152, 58, 0.12);
  border-radius: 50%;
  margin-bottom: 16px;
  font-size: 1.125rem;
  color: var(--accent-dark);
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.02em;
  margin-bottom: 6px;
}

.stat-number .suffix {
  font-size: 1.25rem;
  color: var(--primary);
}

.stat-name {
  font-size: 0.9375rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.stat-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.5;
}

/* ===== 服务矩阵 ===== */
.services-section {
  padding: 80px 0;
  background: #F0F5FA;
}

.service-card {
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  transition: box-shadow var(--transition), transform var(--transition);
  position: relative;
}

.service-card::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--primary);
  opacity: 0;
  transition: opacity var(--transition);
}

.service-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.service-card:hover::after {
  opacity: 1;
}

.service-card-media {
  position: relative;
  height: 200px;
  overflow: hidden;
}

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

.service-card:hover .service-card-media img {
  transform: scale(1.03);
}

.service-card-media .card-num {
  position: absolute;
  top: 16px;
  left: 16px;
  background: rgba(255,255,255,0.92);
  color: var(--accent-dark);
  font-weight: 800;
  font-size: 0.875rem;
  padding: 4px 12px;
  border-radius: 999px;
  letter-spacing: 0.02em;
  box-shadow: 0 2px 8px rgba(0,0,0,0.08);
}

.service-card-media .media-tag {
  position: absolute;
  bottom: 16px;
  left: 16px;
  background: rgba(31,65,114,0.82);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 999px;
}

.service-card-body {
  padding: 28px 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.service-card-body .card-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
  line-height: 1.4;
}

.service-card-body .card-desc {
  font-size: 0.875rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 20px;
  flex-grow: 1;
}

.service-card-body .card-link {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: gap 0.2s, color 0.2s;
}

.service-card-body .card-link:hover {
  color: var(--accent-dark);
  gap: 8px;
}

.service-card-sm {
  background: var(--info-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  height: 100%;
  transition: box-shadow var(--transition), transform var(--transition);
}

.service-card-sm:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-3px);
}

.service-card-sm .sm-icon {
  width: 48px;
  height: 48px;
  background: #FFFFFF;
  border-radius: 10px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  color: var(--primary);
  margin-bottom: 16px;
  box-shadow: 0 2px 8px rgba(23,55,94,0.06);
}

.service-card-sm .sm-title {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}

.service-card-sm .sm-desc {
  font-size: 0.8125rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 14px;
}

.sm-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.sm-tags .tag {
  background: rgba(46, 90, 142, 0.08);
  color: var(--primary);
  font-size: 0.6875rem;
  font-weight: 600;
  padding: 3px 10px;
  border-radius: 999px;
}

/* ===== 资讯区 ===== */
.news-section {
  padding: 80px 0;
  background: var(--bg);
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.news-item {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 18px 16px;
  border-bottom: 1px solid var(--border);
  background: #FFFFFF;
  transition: background 0.2s ease, padding-left 0.2s ease;
}

.news-item:hover {
  background: var(--info-bg);
  padding-left: 22px;
}

.news-item .news-index {
  width: 28px;
  height: 28px;
  background: rgba(46, 90, 142, 0.08);
  color: var(--primary);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.news-item .news-title {
  flex: 1;
  color: var(--text);
  font-weight: 500;
  font-size: 0.9375rem;
  line-height: 1.5;
}

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

.news-item .news-date {
  color: var(--text-secondary);
  font-size: 0.75rem;
  white-space: nowrap;
}

.news-sidebar {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  border-top: 3px solid var(--accent);
  padding: 28px 24px;
  box-shadow: var(--shadow);
}

.news-sidebar h3 {
  font-size: 1.0625rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.news-sidebar h3::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--accent);
}

.news-sidebar a {
  display: block;
  color: var(--text-secondary);
  font-size: 0.875rem;
  padding: 8px 0;
  border-bottom: 1px dashed var(--border);
  transition: color 0.2s, padding-left 0.2s;
}

.news-sidebar a:last-child {
  border-bottom: none;
}

.news-sidebar a:hover {
  color: var(--primary);
  padding-left: 8px;
}

.news-sidebar .sidebar-img {
  border-radius: var(--radius);
  margin-bottom: 16px;
  height: 150px;
  object-fit: cover;
  width: 100%;
}

/* ===== 结果对比 ===== */
.compare-section {
  padding: 80px 0;
  background: #F0F5FA;
}

.compare-table {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}

.compare-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  border-bottom: 1px solid var(--border);
}

.compare-row:last-child {
  border-bottom: none;
}

.compare-row > div {
  padding: 20px 24px;
  font-size: 0.9375rem;
  line-height: 1.6;
}

.compare-head {
  background: #F8FAFD;
  font-weight: 700;
  color: var(--text);
  font-size: 0.875rem;
}

.compare-head .compare-attr {
  color: var(--text-secondary);
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: none;
  letter-spacing: 0.02em;
}

.compare-attr {
  color: var(--text);
  font-weight: 600;
}

.compare-other {
  color: var(--text-secondary);
  border-left: 1px solid var(--border);
}

.compare-self {
  background: #F8FBFE;
  border-left: 1px solid var(--primary);
  color: var(--text);
  font-weight: 700;
  position: relative;
}

.compare-self::before {
  content: "推荐";
  position: absolute;
  top: 10px;
  right: 12px;
  background: var(--accent);
  color: #fff;
  font-size: 0.625rem;
  font-weight: 700;
  padding: 2px 8px;
  border-radius: 999px;
}

.compare-summary {
  text-align: center;
  margin-top: 28px;
  color: var(--text-secondary);
  font-size: 0.9375rem;
  font-style: italic;
}

.compare-summary strong {
  color: var(--primary);
  font-style: normal;
}

/* ===== FAQ ===== */
.faq-section {
  padding: 80px 0;
  background: var(--bg);
}

.accordion {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.accordion-item {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 2px 8px rgba(23,55,94,0.04);
}

.accordion-button {
  width: 100%;
  background: #FFFFFF;
  border: none;
  padding: 20px 24px;
  font-size: 1rem;
  font-weight: 600;
  color: var(--text);
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  cursor: pointer;
  transition: background 0.2s;
  position: relative;
}

.accordion-button:hover {
  background: var(--info-bg);
}

.accordion-button .acc-icon {
  width: 28px;
  height: 28px;
  background: rgba(46, 90, 142, 0.08);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8125rem;
  color: var(--primary);
  transition: transform 0.3s, background 0.3s;
  flex-shrink: 0;
}

.accordion-button[aria-expanded="true"] .acc-icon {
  transform: rotate(45deg);
  background: var(--accent);
  color: #fff;
}

.accordion-collapse {
  transition: max-height 0.3s ease;
}

.accordion-body {
  padding: 0 24px 20px;
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.75;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.faq-sidebar {
  background: var(--info-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  text-align: center;
  box-shadow: var(--shadow);
  position: sticky;
  top: 24px;
}

.faq-sidebar h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 10px;
}

.faq-sidebar p {
  font-size: 0.875rem;
  color: var(--text-secondary);
  margin-bottom: 20px;
}

.faq-sidebar .btn-gold {
  width: 100%;
}

.faq-sidebar .wechat-info {
  margin-top: 16px;
  font-size: 0.8125rem;
  color: var(--primary);
  font-weight: 600;
  background: rgba(255,255,255,0.7);
  padding: 8px 12px;
  border-radius: 8px;
  word-break: break-all;
}

/* ===== 转化表单 ===== */
.contact-section {
  padding: 80px 0;
  background: linear-gradient(180deg, var(--bg) 0%, #EBF1F8 100%);
}

.contact-intro h2 {
  font-size: 1.75rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 14px;
  letter-spacing: -0.02em;
}

.contact-intro .lead {
  font-size: 0.9375rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
  max-width: 420px;
}

.contact-meta {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-meta .meta-row {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.9375rem;
  color: var(--text);
}

.contact-meta .meta-icon {
  width: 40px;
  height: 40px;
  background: #FFFFFF;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  color: var(--primary);
  box-shadow: 0 2px 6px rgba(23,55,94,0.06);
  flex-shrink: 0;
}

.contact-form {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 32px;
  box-shadow: var(--shadow);
}

.contact-form .form-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--text);
  margin-bottom: 6px;
}

.contact-form .form-control,
.contact-form .form-select {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-btn);
  padding: 10px 14px;
  font-size: 0.9375rem;
  color: var(--text);
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.contact-form .form-control:focus,
.contact-form .form-select:focus {
  border-color: var(--primary);
  background: #FFFFFF;
  box-shadow: 0 0 0 3px rgba(46, 90, 142, 0.1);
}

.contact-form textarea.form-control {
  min-height: 96px;
  resize: vertical;
}

.form-privacy {
  font-size: 0.75rem;
  color: var(--text-secondary);
  margin-top: 12px;
  text-align: center;
}

.form-privacy::before {
  content: "🔒";
  margin-right: 4px;
}

.submit-success {
  background: #E8F3EC;
  border: 1px solid #B8DCC5;
  border-radius: var(--radius);
  padding: 48px 36px;
  text-align: center;
}

.submit-success .success-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}

.submit-success h3 {
  font-size: 1.375rem;
  color: #1F6643;
  margin-bottom: 8px;
}

.submit-success p {
  color: var(--text-secondary);
  font-size: 0.9375rem;
}

/* ===== 页脚 ===== */
.site-footer {
  background: var(--footer-bg);
  color: rgba(255,255,255,0.8);
  padding: 64px 0 24px;
  border-top: 3px solid var(--accent);
}

.footer-title {
  font-size: 1.125rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 18px;
  position: relative;
  padding-bottom: 10px;
}

.footer-title::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 24px;
  height: 2px;
  background: var(--accent);
}

.footer-brand {
  font-size: 1.5rem;
  font-weight: 800;
  color: #FFFFFF;
  letter-spacing: -0.02em;
  line-height: 1.3;
  margin-bottom: 12px;
}

.footer-brand .brand-main {
  color: var(--accent);
}

.footer-about {
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.7);
  line-height: 1.7;
  margin-bottom: 16px;
}

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

.footer-links li {
  margin-bottom: 8px;
}

.footer-links a {
  color: rgba(255,255,255,0.7);
  font-size: 0.875rem;
  transition: color 0.2s, padding-left 0.2s;
}

.footer-links a:hover {
  color: #FFFFFF;
  padding-left: 6px;
}

.footer-contact p {
  font-size: 0.875rem;
  color: rgba(255,255,255,0.7);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.footer-contact .contact-label {
  color: var(--accent);
  font-weight: 600;
  min-width: 36px;
}

.footer-area-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.footer-area-tags .area-tag {
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.75);
  font-size: 0.75rem;
  padding: 4px 10px;
  border-radius: 999px;
  transition: background 0.2s, color 0.2s;
}

.footer-area-tags .area-tag:hover {
  background: var(--accent);
  color: #fff;
}

.footer-bottom {
  margin-top: 48px;
  padding-top: 20px;
  border-top: 1px solid rgba(255,255,255,0.1);
  text-align: center;
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.5);
}

.footer-bottom a {
  color: rgba(255,255,255,0.6);
}

/* ===== 响应式 ===== */
@media (max-width: 991.98px) {
  .masthead-nav-wrap {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .masthead-nav {
    display: none;
  }

  .mobile-toggle {
    display: inline-block;
  }

  .mobile-toggle.open span:nth-child(1) {
    transform: translateY(6px) rotate(45deg);
  }

  .mobile-toggle.open span:nth-child(2) {
    opacity: 0;
  }

  .mobile-toggle.open span:nth-child(3) {
    transform: translateY(-6px) rotate(-45deg);
  }

  .mobile-menu {
    display: none;
    background: #FFFFFF;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-top: 12px;
    padding: 8px 0;
  }

  .mobile-menu.open {
    display: block;
  }

  .mobile-menu a {
    display: block;
    padding: 12px 20px;
    border-bottom: 1px solid var(--border);
    color: var(--text);
    font-weight: 500;
  }

  .mobile-menu a:last-child {
    border-bottom: none;
  }

  .mobile-menu a:hover {
    background: var(--info-bg);
    color: var(--primary);
  }

  .hero-media .cover-image {
    height: 300px;
  }

  .compare-row > div {
    padding: 14px 16px;
  }

  .faq-sidebar {
    margin-top: 24px;
    position: static;
  }

  .hero-section h1 {
    font-size: 1.75rem;
  }
}

@media (max-width: 767.98px) {
  .hero-stats {
    flex-direction: column;
    gap: 16px;
    padding: 20px;
  }

  .hero-stats .stat-item {
    border-right: none;
    border-bottom: 1px solid var(--border);
    padding-bottom: 12px;
  }

  .hero-stats .stat-item:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

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

  .compare-attr {
    background: #F8FAFD;
  }

  .compare-other {
    border-left: none;
    border-top: 1px solid var(--border);
    padding-left: 24px;
  }

  .compare-self {
    border-left: none;
    border-top: 1px solid var(--primary);
  }

  .compare-row > div {
    padding: 12px 16px;
  }

  .news-item {
    flex-wrap: wrap;
    gap: 8px;
    padding: 14px 12px;
  }

  .news-item .news-title {
    flex-basis: 100%;
    order: -1;
  }
}

@media (max-width: 575.98px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  body {
    font-size: 0.875rem;
  }

  .brand {
    font-size: 1.375rem;
  }

  .masthead-meta {
    font-size: 0.75rem;
  }

  .hero-section {
    padding: 48px 0 40px;
  }

  .hero-section h1 {
    font-size: 1.5rem;
    line-height: 1.35;
  }

  .hero-lead {
    font-size: 0.9375rem;
    margin-bottom: 24px;
  }

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

  .hero-actions .btn {
    text-align: center;
  }

  .hero-media .cover-image {
    height: 240px;
  }

  .hero-badge-circle {
    width: 58px;
    height: 58px;
    font-size: 0.625rem;
  }

  .stats-section,
  .services-section,
  .news-section,
  .compare-section,
  .faq-section,
  .contact-section {
    padding: 56px 0;
  }

  .section-head h2 {
    font-size: 1.375rem;
  }

  .section-head p {
    font-size: 0.875rem;
  }

  .service-card-media {
    height: 160px;
  }

  .service-card-body {
    padding: 20px 18px;
  }

  .service-card-sm {
    padding: 20px 18px;
  }

  .contact-form {
    padding: 24px 18px;
  }

  .contact-intro h2 {
    font-size: 1.375rem;
  }

  .site-footer {
    padding: 48px 0 16px;
  }

  .footer-bottom {
    margin-top: 32px;
  }

  .accordion-button {
    padding: 16px 18px;
    font-size: 0.9375rem;
  }

  .accordion-body {
    padding: 0 18px 16px;
  }

  .compare-row > div {
    font-size: 0.875rem;
  }

  .compare-self::before {
    top: 8px;
    right: 10px;
  }
}

@media (min-width: 992px) and (max-width: 1199.98px) {
  .hero-section h1 {
    font-size: 1.875rem;
  }

  .hero-media .cover-image {
    height: 330px;
  }
}