/* roulang page: index */
:root {
  --brand-primary: #0E7C7B;
  --brand-dark: #0A5F5E;
  --brand-deep: #0A3D3D;
  --accent: #FF7A45;
  --accent-hover: #FF6A2B;
  --bg-light: #F6F8F7;
  --card-bg: #FFFFFF;
  --title-color: #1C2A2D;
  --text-color: #4A5A5E;
  --muted-color: #8A9A9D;
  --border-color: #E3E8E6;
  --brand-tint: #E3F2F1;
  --radius-card: 14px;
  --radius-btn: 8px;
  --shadow-card: 0 6px 24px rgba(14,124,123,0.06);
  --shadow-hover: 0 12px 32px rgba(14,124,123,0.12);
  --shadow-accent: 0 8px 20px rgba(255,122,69,0.3);
  --font-stack: "PingFang SC","Microsoft YaHei","Noto Sans SC",sans-serif;
  --transition: all 0.3s cubic-bezier(0.25,0.46,0.45,0.94);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-color);
  background-color: var(--bg-light);
  -webkit-font-smoothing: antialiased;
}

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

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

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

button {
  font-family: inherit;
  cursor: pointer;
}

input,
select,
textarea {
  font-family: inherit;
}

.container {
  max-width: 1200px;
  padding-left: 24px;
  padding-right: 24px;
}

/* ======= 通用按钮 ======= */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-btn);
  font-weight: 600;
  font-size: 15px;
  line-height: 1.4;
  padding: 12px 28px;
  border: 1.5px solid transparent;
  transition: var(--transition);
  text-align: center;
  white-space: nowrap;
}

.btn:focus-visible {
  outline: 2px solid var(--brand-primary);
  outline-offset: 2px;
}

.btn-accent {
  background-color: var(--accent);
  border-color: var(--accent);
  color: #fff;
}

.btn-accent:hover {
  background-color: var(--accent-hover);
  border-color: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent);
}

.btn-accent:active {
  transform: translateY(0);
  box-shadow: 0 2px 8px rgba(255,122,69,0.2);
}

.btn-outline {
  background-color: transparent;
  border-color: var(--brand-primary);
  color: var(--brand-primary);
}

.btn-outline:hover {
  background-color: var(--brand-tint);
  border-color: var(--brand-primary);
  color: var(--brand-dark);
}

.btn-block {
  width: 100%;
}

.btn-sm {
  padding: 8px 18px;
  font-size: 14px;
}

.btn-lg {
  padding: 16px 40px;
  font-size: 17px;
}

/* ======= 顶部导航 ======= */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1050;
  height: 64px;
  background: rgba(246,248,247,0.72);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}

.site-header.is-scrolled {
  background: rgba(255,255,255,0.96);
  border-bottom-color: var(--border-color);
  box-shadow: 0 4px 20px rgba(12,60,60,0.06);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  gap: 24px;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}

.brand-logo span {
  font-size: 21px;
  font-weight: 700;
  color: var(--title-color);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.brand-logo:hover span {
  color: var(--brand-primary);
}

.brand-logo svg {
  width: 30px;
  height: 30px;
  flex-shrink: 0;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 4px;
  margin-left: 36px;
}

.main-nav .nav-link {
  display: inline-flex;
  align-items: center;
  padding: 8px 14px;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-color);
  border-radius: 8px;
  position: relative;
  transition: var(--transition);
}

.main-nav .nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 2px;
  height: 2px;
  border-radius: 2px;
  background: var(--brand-primary);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.3s ease;
}

.main-nav .nav-link:hover {
  color: var(--brand-primary);
  background: rgba(14,124,123,0.06);
}

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

.main-nav .nav-link.active::after {
  transform: scaleX(1);
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-shrink: 0;
}

.header-search {
  position: relative;
  display: flex;
  align-items: center;
}

.header-search input {
  width: 170px;
  height: 36px;
  border: 1px solid var(--border-color);
  border-radius: 18px;
  padding: 0 36px 0 16px;
  font-size: 13px;
  background: #fff;
  color: var(--title-color);
  outline: none;
  transition: var(--transition);
}

.header-search input:focus {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(14,124,123,0.12);
}

.header-search i {
  position: absolute;
  right: 13px;
  font-size: 14px;
  color: var(--muted-color);
  pointer-events: none;
}

.nav-toggle {
  display: none;
  width: 40px;
  height: 40px;
  border: 1px solid var(--border-color);
  border-radius: 8px;
  background: #fff;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 5px;
}

.nav-toggle span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--title-color);
  border-radius: 2px;
  transition: var(--transition);
}

.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

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

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ======= 首屏 Hero ======= */
.hero {
  position: relative;
  min-height: 86vh;
  display: flex;
  align-items: center;
  padding-top: 64px;
  overflow: hidden;
  background: linear-gradient(135deg, #EAF4F2 0%, #F6F8F7 55%, #E3F2F1 100%);
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("/assets/images/backpic/back-1.webp");
  background-size: cover;
  background-position: center;
  opacity: 0.08;
  pointer-events: none;
}

.hero-inner {
  display: flex;
  align-items: center;
  gap: 64px;
  position: relative;
  z-index: 1;
  padding: 60px 0;
}

.hero-content {
  flex: 0 0 55%;
  max-width: 55%;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--brand-tint);
  color: var(--brand-dark);
  font-size: 13px;
  font-weight: 600;
  padding: 7px 18px;
  border-radius: 50px;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}

.hero-badge i {
  font-size: 14px;
}

.hero h1 {
  font-size: clamp(36px, 4vw, 60px);
  font-weight: 700;
  line-height: 1.2;
  color: var(--title-color);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}

.hero-subtitle {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-color);
  max-width: 520px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  gap: 16px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.hero-trust {
  display: flex;
  gap: 28px;
  list-style: none;
  padding: 0;
  margin: 0;
  flex-wrap: wrap;
}

.hero-trust li {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-color);
  font-weight: 500;
}

.hero-trust li i {
  color: var(--brand-primary);
  font-size: 16px;
}

.hero-visual {
  flex: 0 0 45%;
  max-width: 45%;
  position: relative;
}

.hero-img {
  width: 100%;
  height: 420px;
  object-fit: cover;
  border-radius: 16px;
  box-shadow: var(--shadow-hover);
}

.hero-card {
  position: absolute;
  left: -24px;
  bottom: 36px;
  background: #fff;
  border-radius: 14px;
  padding: 16px 22px;
  box-shadow: 0 12px 32px rgba(14,124,123,0.15);
  display: flex;
  align-items: center;
  gap: 12px;
  animation: floatY 4s ease-in-out infinite;
}

.hero-card i {
  font-size: 28px;
  color: var(--brand-primary);
}

.hero-card strong {
  display: block;
  font-size: 15px;
  color: var(--title-color);
}

.hero-card span {
  font-size: 13px;
  color: var(--muted-color);
}

.hero-discount {
  position: absolute;
  right: -18px;
  top: -18px;
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: var(--accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
  font-weight: 700;
  transform: rotate(-10deg);
  box-shadow: 0 8px 20px rgba(255,122,69,0.35);
  line-height: 1.2;
  text-align: center;
}

@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

/* ======= 信任指标带 ======= */
.trust-stats {
  background: #fff;
  border-bottom: 1px solid var(--border-color);
  padding: 56px 0;
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}

.stat-item {
  text-align: center;
  padding: 12px 16px;
}

.stat-icon {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--brand-tint);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  color: var(--brand-primary);
  font-size: 24px;
}

.stat-num {
  font-size: 38px;
  font-weight: 700;
  color: var(--title-color);
  line-height: 1.2;
  font-variant-numeric: tabular-nums;
  letter-spacing: -1px;
}

.stat-num i {
  font-style: normal;
  color: var(--brand-primary);
  font-size: 26px;
  font-weight: 700;
  margin-left: 2px;
}

.stat-label {
  font-size: 14px;
  color: var(--muted-color);
  margin-top: 4px;
}

/* ======= 通用区块标题 ======= */
.section-head {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 56px;
}

.section-head h2 {
  font-size: clamp(26px, 2.4vw, 40px);
  font-weight: 700;
  color: var(--title-color);
  line-height: 1.3;
  margin-bottom: 12px;
  position: relative;
  display: inline-block;
  padding-bottom: 14px;
}

.section-head h2::after {
  content: "";
  position: absolute;
  left: 50%;
  bottom: 0;
  transform: translateX(-50%);
  width: 48px;
  height: 3px;
  border-radius: 3px;
  background: var(--brand-primary);
}

.section-head p {
  font-size: 16px;
  color: var(--muted-color);
  margin-top: 12px;
}

.section-more {
  font-size: 14px;
  font-weight: 600;
  color: var(--brand-primary);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.section-more:hover {
  color: var(--brand-dark);
}

/* ======= 优惠阶梯区 ======= */
.tier-section {
  padding: 80px 0;
}

.tier-grid {
  display: flex;
  align-items: flex-start;
  gap: 32px;
  max-width: 1120px;
  margin: 0 auto;
}

.tier-card {
  flex: 1;
  background: var(--card-bg);
  border-radius: var(--radius-card);
  border: 1px solid var(--border-color);
  box-shadow: var(--shadow-card);
  padding: 36px 30px;
  position: relative;
  transition: var(--transition);
}

.tier-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(14,124,123,0.3);
}

.tier-base {
  align-self: flex-start;
}

.tier-mid {
  align-self: center;
  margin-top: -20px;
  border-top: 3px solid var(--accent);
}

.tier-top {
  align-self: flex-end;
  margin-top: -40px;
  border-top: 3px solid var(--brand-primary);
}

.tier-level {
  display: inline-block;
  background: var(--brand-tint);
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 600;
  padding: 4px 14px;
  border-radius: 50px;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.tier-card h3 {
  font-size: 20px;
  font-weight: 600;
  color: var(--title-color);
  margin-bottom: 12px;
}

.tier-price {
  margin-bottom: 22px;
  line-height: 1.2;
}

.tier-price strong {
  font-size: 34px;
  font-weight: 700;
  color: var(--brand-primary);
  font-variant-numeric: tabular-nums;
  letter-spacing: -1px;
}

.tier-price span {
  font-size: 14px;
  color: var(--muted-color);
  margin-left: 4px;
}

.tier-card ul {
  list-style: none;
  padding: 0;
  margin: 0 0 26px;
}

.tier-card ul li {
  position: relative;
  padding-left: 26px;
  font-size: 15px;
  color: var(--text-color);
  margin-bottom: 10px;
}

.tier-card ul li::before {
  content: "\F26B";
  font-family: "bootstrap-icons";
  position: absolute;
  left: 0;
  top: 1px;
  color: var(--brand-primary);
  font-size: 14px;
}

.badge-popular {
  position: absolute;
  top: -14px;
  right: 20px;
  background: var(--accent);
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  padding: 4px 12px;
  border-radius: 50px;
  box-shadow: 0 4px 12px rgba(255,122,69,0.3);
}

.text-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 15px;
  font-weight: 600;
  color: var(--brand-primary);
}

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

.text-link i {
  font-size: 13px;
  transition: transform 0.3s;
}

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

/* ======= 套餐对比区 ======= */
.package-section {
  padding: 80px 0;
  background: #fff;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}

.package-wrap {
  max-width: 1080px;
  margin: 0 auto;
}

.table-scroll-hint {
  display: none;
  font-size: 13px;
  color: var(--muted-color);
  text-align: center;
  margin-bottom: 10px;
}

.table-wrapper {
  overflow-x: auto;
  border-radius: 14px;
  box-shadow: var(--shadow-card);
  background: #fff;
  border: 1px solid var(--border-color);
}

.package-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 720px;
}

.package-table th,
.package-table td {
  padding: 18px 24px;
  text-align: center;
  font-size: 15px;
  border-bottom: 1px solid var(--border-color);
}

.package-table thead th {
  background: #F9FCFB;
  color: var(--title-color);
  font-weight: 600;
  font-size: 16px;
}

.package-table thead .col-recommend {
  background: rgba(14,124,123,0.05);
}

.package-table td.col-recommend {
  background: rgba(14,124,123,0.05);
}

.package-table tbody tr:last-child td {
  border-bottom: none;
}

.package-table .check-yes {
  color: var(--brand-primary);
  font-size: 18px;
  font-weight: 600;
}

.package-table .check-no {
  color: #C4D0CF;
  font-size: 16px;
}

.price-cell {
  font-size: 22px;
  font-weight: 700;
  color: var(--title-color);
  font-variant-numeric: tabular-nums;
}

.package-actions {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 12px;
  margin-top: 20px;
  align-items: center;
}

.package-actions .spacer {
  display: none;
}

/* 调整按钮对齐 */
.package-actions .btn {
  width: 100%;
}

/* ======= 最新资讯区 ======= */
.news-section {
  padding: 80px 0;
}

.news-section .section-head-wrap {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 44px;
}

.news-section .section-head {
  text-align: left;
  margin: 0;
}

.news-section .section-head h2::after {
  left: 0;
  transform: none;
}

.news-list {
  display: flex;
  flex-direction: column;
  gap: 20px;
  max-width: 1080px;
  margin: 0 auto;
}

.news-card {
  display: flex;
  align-items: center;
  gap: 32px;
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-card);
  padding: 24px 28px;
  transition: var(--transition);
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(14,124,123,0.3);
}

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

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

.news-cat {
  display: inline-block;
  background: var(--brand-tint);
  color: var(--brand-dark);
  font-size: 12px;
  font-weight: 600;
  padding: 3px 12px;
  border-radius: 50px;
  margin-bottom: 10px;
}

.news-title {
  font-size: 18px;
  font-weight: 600;
  color: var(--title-color);
  margin-bottom: 8px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  transition: var(--transition);
}

.news-excerpt {
  font-size: 14px;
  color: var(--text-color);
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
  margin-bottom: 8px;
  line-height: 1.6;
}

.news-time {
  font-size: 13px;
  color: var(--muted-color);
  display: inline-flex;
  align-items: center;
  gap: 4px;
}

.news-thumb {
  width: 140px;
  height: 92px;
  flex-shrink: 0;
  border-radius: 12px;
  overflow: hidden;
  background: var(--brand-tint);
}

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

.news-card:hover .news-thumb img {
  transform: scale(1.06);
}

.news-empty {
  border: 2px dashed var(--border-color);
  border-radius: var(--radius-card);
  background: rgba(227,242,241,0.5);
  text-align: center;
  padding: 60px 24px;
}

.news-empty i {
  font-size: 40px;
  color: var(--brand-primary);
  opacity: 0.4;
  display: block;
  margin-bottom: 12px;
}

.news-empty p {
  color: var(--muted-color);
  font-size: 15px;
}

/* ======= 限时入口区 ======= */
.limited-section {
  background-color: var(--brand-dark);
  padding: 80px 0;
  position: relative;
  overflow: hidden;
}

.limited-section::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background-image: url("/assets/images/backpic/back-2.webp");
  background-size: cover;
  background-position: center;
  opacity: 0.08;
  pointer-events: none;
}

.limited-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  position: relative;
  z-index: 1;
}

.limited-left h2 {
  font-size: clamp(26px, 2.4vw, 40px);
  color: #fff;
  font-weight: 700;
  margin-bottom: 10px;
}

.limited-left > p {
  color: rgba(255,255,255,0.75);
  font-size: 16px;
  margin-bottom: 32px;
}

.countdown {
  display: flex;
  align-items: center;
  gap: 12px;
}

.count-box {
  background: #fff;
  border-radius: 12px;
  width: 88px;
  padding: 14px 8px 12px;
  text-align: center;
  box-shadow: 0 6px 20px rgba(0,0,0,0.15);
}

.count-box span {
  display: block;
  font-size: 34px;
  font-weight: 700;
  color: var(--brand-primary);
  font-variant-numeric: tabular-nums;
  line-height: 1.1;
}

.count-box em {
  display: block;
  font-style: normal;
  font-size: 13px;
  color: var(--muted-color);
  margin-top: 4px;
}

.count-sep {
  font-size: 30px;
  color: rgba(255,255,255,0.6);
  font-weight: 700;
}

.btn-pulse {
  position: relative;
}

.btn-pulse::after {
  content: "";
  position: absolute;
  inset: -4px;
  border-radius: calc(var(--radius-btn) + 4px);
  border: 2px solid rgba(255,122,69,0.35);
  animation: pulseRing 2s ease-out infinite;
}

@keyframes pulseRing {
  0% {
    transform: scale(1);
    opacity: 1;
  }
  70% {
    transform: scale(1.08);
    opacity: 0;
  }
  100% {
    opacity: 0;
  }
}

/* ======= FAQ 区 ======= */
.faq-section {
  padding: 80px 0;
}

.custom-accordion {
  max-width: 880px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.custom-accordion .accordion-item {
  background: #fff;
  border: 1px solid var(--border-color) !important;
  border-radius: 12px !important;
  box-shadow: var(--shadow-card);
  overflow: hidden;
  transition: var(--transition);
}

.custom-accordion .accordion-item:hover {
  border-color: rgba(14,124,123,0.35);
}

.custom-accordion .accordion-item.has-expand {
  border-left: 3px solid var(--brand-primary);
}

.custom-accordion .accordion-button {
  background: #fff;
  color: var(--title-color);
  font-size: 18px;
  font-weight: 600;
  padding: 22px 26px;
  box-shadow: none !important;
  border-radius: 12px !important;
  transition: var(--transition);
  font-family: var(--font-stack);
}

.custom-accordion .accordion-button:not(.collapsed) {
  background: rgba(227,242,241,0.4);
  color: var(--brand-dark);
}

.custom-accordion .accordion-button:focus {
  outline: 2px solid rgba(14,124,123,0.4);
  outline-offset: -2px;
}

.custom-accordion .accordion-button::after {
  background-image: none;
  content: "\F282";
  font-family: "bootstrap-icons";
  font-size: 16px;
  color: var(--brand-primary);
  transform: rotate(0deg);
  transition: var(--transition);
  width: auto;
  height: auto;
  background-size: auto;
}

.custom-accordion .accordion-button:not(.collapsed)::after {
  transform: rotate(180deg);
}

.custom-accordion .accordion-body {
  padding: 4px 26px 24px;
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-color);
  background: #fff;
}

.custom-accordion .accordion-body p {
  margin-bottom: 0;
}

.custom-accordion .accordion-button:hover {
  color: var(--brand-primary);
}

/* ======= 咨询表单区 ======= */
.contact-section {
  padding: 80px 0;
  background: linear-gradient(180deg, #F6F8F7 0%, #EAEDEC 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  max-width: 1080px;
  margin: 0 auto;
  align-items: center;
}

.contact-info h2 {
  font-size: clamp(26px, 2.4vw, 40px);
  font-weight: 700;
  color: var(--title-color);
  margin-bottom: 12px;
}

.contact-info > p {
  color: var(--muted-color);
  margin-bottom: 32px;
  line-height: 1.7;
}

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

.contact-list li {
  display: flex;
  gap: 16px;
  margin-bottom: 24px;
  align-items: flex-start;
}

.contact-list .ci-icon {
  width: 46px;
  height: 46px;
  border-radius: 14px;
  background: var(--brand-tint);
  color: var(--brand-primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.contact-list strong {
  display: block;
  font-size: 16px;
  color: var(--title-color);
  margin-bottom: 2px;
}

.contact-list span {
  font-size: 14px;
  color: var(--muted-color);
  line-height: 1.5;
}

.contact-form-card {
  background: #fff;
  border-radius: 16px;
  box-shadow: var(--shadow-hover);
  padding: 40px;
  border: 1px solid var(--border-color);
}

.contact-form-card label {
  font-size: 14px;
  font-weight: 600;
  color: var(--title-color);
  margin-bottom: 6px;
  display: block;
}

.contact-form-card .form-control,
.contact-form-card .form-select {
  width: 100%;
  height: 44px;
  border: 1px solid #DCE3E6;
  border-radius: 8px;
  padding: 0 14px;
  font-size: 15px;
  color: var(--title-color);
  background: #fff;
  outline: none;
  transition: var(--transition);
  margin-bottom: 18px;
}

.contact-form-card textarea.form-control {
  height: auto;
  padding-top: 10px;
  resize: vertical;
  min-height: 110px;
}

.contact-form-card .form-control:focus,
.contact-form-card .form-select:focus {
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(14,124,123,0.12);
}

.contact-form-card .form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%238A9A9D' stroke-width='1.8' fill='none' stroke-linecap='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  color: var(--text-color);
}

.form-privacy {
  font-size: 13px;
  color: var(--muted-color);
  text-align: center;
  margin-top: 16px;
}

.form-success {
  display: none;
  text-align: center;
  color: var(--brand-primary);
  font-size: 16px;
  font-weight: 600;
  padding: 20px;
  background: var(--brand-tint);
  border-radius: 10px;
  margin-bottom: 18px;
}

/* ======= 页脚 ======= */
.site-footer {
  background: var(--brand-deep);
  color: rgba(255,255,255,0.72);
  padding: 72px 0 0;
  position: relative;
  overflow: hidden;
}

.site-footer::before {
  content: "";
  position: absolute;
  bottom: 0;
  right: 0;
  width: 360px;
  height: 360px;
  background-image: url("/assets/images/backpic/back-3.webp");
  background-size: cover;
  background-position: center;
  opacity: 0.05;
  pointer-events: none;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  position: relative;
  z-index: 1;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.footer-brand .footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 22px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
}

.footer-brand .footer-logo svg {
  width: 28px;
  height: 28px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  opacity: 0.8;
  max-width: 260px;
}

.footer-col h4 {
  font-size: 16px;
  color: #fff;
  font-weight: 600;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}

.footer-col h4::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 28px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: rgba(255,255,255,0.72);
  padding: 5px 0;
  transition: var(--transition);
}

.footer-col a:hover {
  color: #fff;
  padding-left: 4px;
}

.footer-col p {
  font-size: 14px;
  color: rgba(255,255,255,0.72);
  margin-bottom: 10px;
}

.footer-col p i {
  margin-right: 6px;
  color: var(--accent);
}

.footer-bottom {
  padding: 22px 0 28px;
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  position: relative;
  z-index: 1;
}

.placeholder-qr {
  width: 88px;
  height: 88px;
  border-radius: 12px;
  background: #fff;
  margin-top: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--brand-primary);
  font-size: 13px;
  font-weight: 600;
  padding: 8px;
  text-align: center;
  line-height: 1.4;
}

/* ======= 响应式 ======= */
@media (max-width: 1199.98px) {
  .hero-inner {
    gap: 40px;
  }
  .hero-visual {
    flex: 0 0 45%;
  }
  .hero-img {
    height: 380px;
  }
  .hero h1 {
    font-size: clamp(32px, 3.6vw, 48px);
  }
}

@media (max-width: 991.98px) {
  .container {
    padding-left: 20px;
    padding-right: 20px;
  }

  .nav-toggle {
    display: flex;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px;
    box-shadow: 0 12px 32px rgba(10,60,60,0.1);
    gap: 4px;
    margin-left: 0;
    border-top: 1px solid var(--border-color);
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav .nav-link {
    padding: 14px 16px;
    font-size: 15px;
    border-radius: 8px;
  }

  .main-nav .nav-link::after {
    display: none;
  }

  .hero-inner {
    flex-direction: column;
    gap: 48px;
    padding: 80px 0 60px;
  }

  .hero-content,
  .hero-visual {
    flex: 0 0 100%;
    max-width: 100%;
  }

  .hero-visual {
    width: 100%;
  }

  .hero-subtitle {
    max-width: 100%;
  }

  .tier-grid {
    flex-direction: column;
    gap: 24px;
  }

  .tier-base,
  .tier-mid,
  .tier-top {
    align-self: auto;
    margin-top: 0;
    width: 100%;
  }

  .badge-popular {
    top: -12px;
  }

  .package-actions {
    grid-template-columns: repeat(3, 1fr);
  }

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 40px;
  }
}

@media (max-width: 767.98px) {
  .header-search {
    display: none;
  }

  .hero {
    padding-top: 64px;
  }

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

  .hero-actions .btn {
    width: 100%;
  }

  .hero-trust {
    gap: 16px;
    flex-direction: column;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
  }

  .news-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 16px;
  }

  .news-thumb {
    width: 100%;
    height: 160px;
  }

  .limited-inner {
    flex-direction: column;
    text-align: center;
  }

  .countdown {
    justify-content: center;
  }

  .package-section .table-wrapper {
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
  }

  .package-table {
    min-width: 700px;
  }

  .table-scroll-hint {
    display: block;
  }

  .contact-form-card {
    padding: 28px 20px;
  }

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

  .tier-card {
    padding: 28px 22px;
  }

  .section-head {
    margin-bottom: 40px;
  }

  .news-section .section-head-wrap {
    flex-direction: column;
    align-items: flex-start;
    gap: 12px;
  }
}

@media (max-width: 520px) {
  .container {
    padding-left: 16px;
    padding-right: 16px;
  }

  .brand-logo span {
    font-size: 18px;
  }

  .hero-badge {
    font-size: 12px;
    padding: 6px 14px;
  }

  .hero h1 {
    font-size: 32px;
  }

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

  .hero-actions .btn {
    font-size: 14px;
    padding: 12px 20px;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 20px;
  }

  .stat-num {
    font-size: 30px;
  }

  .count-box {
    width: 74px;
    padding: 10px 6px 8px;
  }

  .count-box span {
    font-size: 26px;
  }

  .count-box em {
    font-size: 12px;
  }

  .news-card {
    padding: 20px 18px;
  }

  .news-title {
    font-size: 16px;
  }

  .news-excerpt {
    font-size: 13px;
  }

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

  .custom-accordion .accordion-body {
    padding: 0 16px 20px;
    font-size: 15px;
  }

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

  .tier-section,
  .package-section,
  .news-section,
  .faq-section,
  .contact-section {
    padding: 56px 0;
  }

  .hero-visual .hero-card {
    left: 12px;
    bottom: 16px;
    padding: 12px 16px;
  }

  .hero-discount {
    right: 6px;
    top: 8px;
    width: 60px;
    height: 60px;
    font-size: 12px;
  }
}

/* roulang page: category1 */
:root {
  --primary: #0E7C7B;
  --primary-dark: #0A5F5E;
  --primary-deep: #0A3D3D;
  --accent: #FF7A45;
  --accent-hover: #FF6A2B;
  --light-bg: #E3F2F1;
  --page-bg: #F6F8F7;
  --card-bg: #FFFFFF;
  --title-color: #1C2A2D;
  --text-color: #4A5A5E;
  --muted-text: #8A9A9D;
  --border-color: #E3E8E6;
  --radius: 14px;
  --radius-sm: 8px;
  --shadow: 0 6px 24px rgba(14,124,123,0.06);
  --shadow-hover: 0 12px 32px rgba(14,124,123,0.12);
  --transition: all 0.3s ease;
  --font-stack: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-stack);
  font-size: 16px;
  line-height: 1.75;
  color: var(--text-color);
  background: var(--page-bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--primary); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--primary-dark); }
img { max-width: 100%; height: auto; }
button { cursor: pointer; }

.container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }

.section { padding: 100px 0; }

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}
.section-head h2 {
  font-size: clamp(26px, 2.4vw, 40px);
  font-weight: 700;
  color: var(--title-color);
  line-height: 1.3;
  margin-bottom: 14px;
  position: relative;
}
.section-head h2::after {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
  margin: 14px auto 0;
}
.section-head p {
  color: var(--muted-text);
  font-size: 16px;
  line-height: 1.7;
  margin-top: 14px;
}

/* ===== Header ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: 64px;
  background: transparent;
  transition: background 0.35s ease, box-shadow 0.35s ease;
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.96);
  box-shadow: 0 2px 16px rgba(14, 124, 123, 0.08);
  backdrop-filter: blur(6px);
}
.header-inner {
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.brand-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--title-color);
  font-size: 20px;
  font-weight: 700;
  white-space: nowrap;
}
.brand-logo svg { flex-shrink: 0; }
.brand-logo:hover { color: var(--primary); }
.header-left {
  display: flex;
  align-items: center;
  gap: 36px;
}
.header-left .brand-logo { margin-right: 8px; }
.main-nav {
  display: flex;
  align-items: center;
  gap: 28px;
}
.main-nav .nav-link {
  font-size: 14px;
  font-weight: 500;
  color: var(--title-color);
  padding: 6px 2px;
  position: relative;
  white-space: nowrap;
}
.main-nav .nav-link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width 0.3s ease;
}
.main-nav .nav-link:hover { color: var(--primary); }
.main-nav .nav-link:hover::after { width: 100%; }
.main-nav .nav-link.active {
  color: var(--primary);
  font-weight: 700;
}
.main-nav .nav-link.active::after { width: 100%; }

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}
.header-search {
  position: relative;
  width: 170px;
}
.header-search input {
  width: 100%;
  height: 38px;
  border: 1px solid var(--border-color);
  border-radius: 20px;
  padding: 0 36px 0 14px;
  font-size: 13px;
  font-family: var(--font-stack);
  background: rgba(255, 255, 255, 0.85);
  outline: none;
  transition: var(--transition);
}
.header-search input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 124, 123, 0.12);
}
.header-search i {
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--muted-text);
  font-size: 14px;
  pointer-events: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: none;
  padding: 8px;
  border-radius: 6px;
}
.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--title-color);
  border-radius: 2px;
  transition: var(--transition);
}
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border-radius: var(--radius-sm);
  font-family: var(--font-stack);
  font-weight: 600;
  font-size: 15px;
  padding: 12px 28px;
  border: none;
  transition: var(--transition);
  text-decoration: none;
  line-height: 1.4;
}
.btn:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 2px;
}
.btn-accent {
  background: var(--accent);
  color: #fff;
}
.btn-accent:hover {
  background: var(--accent-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(255, 122, 69, 0.3);
}
.btn-accent:active {
  transform: translateY(0);
  box-shadow: 0 4px 12px rgba(255, 122, 69, 0.2);
}
.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 1.5px solid var(--primary);
}
.btn-outline:hover {
  background: var(--light-bg);
  color: var(--primary-dark);
  transform: translateY(-2px);
}
.btn-outline:active {
  transform: translateY(0);
}
.btn-sm { padding: 8px 18px; font-size: 13px; }
.btn-lg { padding: 16px 36px; font-size: 16px; }

/* ===== Hero ===== */
.cate-hero {
  position: relative;
  padding: 160px 0 80px;
  background: linear-gradient(160deg, #E8F4F3 0%, #F6F8F7 55%, #EDF7F5 100%);
  overflow: hidden;
}
.cate-hero::before {
  content: "";
  position: absolute;
  top: -80px;
  right: -60px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, rgba(14, 124, 123, 0.1) 0%, transparent 70%);
  border-radius: 50%;
  pointer-events: none;
}
.cate-hero .container { position: relative; z-index: 2; }

.hero-breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--muted-text);
  margin-bottom: 28px;
}
.hero-breadcrumb a { color: var(--primary); }
.hero-breadcrumb a:hover { text-decoration: underline; }
.hero-breadcrumb .current { color: var(--text-color); font-weight: 500; }

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 60px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: var(--light-bg);
  color: var(--primary);
  font-size: 13px;
  font-weight: 600;
  padding: 6px 16px;
  border-radius: 20px;
  margin-bottom: 20px;
}
.hero-badge i { font-size: 14px; }

.cate-hero h1 {
  font-size: clamp(36px, 4vw, 56px);
  font-weight: 700;
  color: var(--title-color);
  line-height: 1.2;
  margin-bottom: 18px;
  letter-spacing: -0.5px;
}
.hero-subtitle {
  font-size: 17px;
  line-height: 1.8;
  color: var(--text-color);
  max-width: 520px;
  margin-bottom: 32px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 28px;
}
.hero-trust {
  display: flex;
  align-items: center;
  gap: 24px;
  flex-wrap: wrap;
}
.hero-trust span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 14px;
  color: var(--text-color);
}
.hero-trust i { color: var(--primary); font-size: 16px; }

.hero-visual { position: relative; }
.hero-img-wrap {
  border-radius: 16px;
  overflow: hidden;
  box-shadow: var(--shadow-hover);
  position: relative;
}
.hero-img-wrap img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  display: block;
}
.hero-float-card {
  position: absolute;
  bottom: 24px;
  left: -20px;
  background: #fff;
  border-radius: 12px;
  padding: 16px 20px;
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.1);
  display: flex;
  align-items: center;
  gap: 12px;
  max-width: 260px;
}
.hero-float-card .float-icon {
  width: 40px;
  height: 40px;
  background: var(--light-bg);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 18px;
  flex-shrink: 0;
}
.hero-float-card .float-text { font-size: 13px; line-height: 1.5; color: var(--text-color); }
.hero-float-card .float-text strong { display: block; color: var(--title-color); font-size: 14px; }

/* ===== Stats Bar ===== */
.stats-bar {
  background: #fff;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 48px 0;
}
.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 32px;
}
.stat-item {
  text-align: center;
  padding: 8px;
}
.stat-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: var(--light-bg);
  color: var(--primary);
  font-size: 22px;
  border-radius: 50%;
  margin-bottom: 12px;
}
.stat-number {
  display: block;
  font-size: 36px;
  font-weight: 700;
  color: var(--title-color);
  font-variant-numeric: tabular-nums;
  letter-spacing: -1px;
}
.stat-number em { font-style: normal; font-size: 18px; color: var(--primary); margin-left: 2px; }
.stat-label { font-size: 14px; color: var(--muted-text); margin-top: 4px; display: block; }

/* ===== Service Standards ===== */
.standards-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 28px;
}
.standard-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 32px 24px;
  box-shadow: var(--shadow);
  transition: var(--transition);
}
.standard-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
  border-color: rgba(14, 124, 123, 0.3);
}
.standard-card .card-icon {
  width: 56px;
  height: 56px;
  background: var(--light-bg);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--primary);
  font-size: 24px;
  margin-bottom: 20px;
  transition: var(--transition);
}
.standard-card:hover .card-icon {
  background: var(--primary);
  color: #fff;
}
.standard-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: var(--title-color);
  margin-bottom: 10px;
}
.standard-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-color);
  margin-bottom: 0;
}

/* ===== Service Flow ===== */
.flow-section {
  background: #fff;
  border-top: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
}
.flow-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 24px;
  position: relative;
}
.flow-step {
  text-align: center;
  position: relative;
  padding: 0 8px;
}
.flow-step::after {
  content: "";
  position: absolute;
  top: 32px;
  left: calc(50% + 38px);
  width: calc(100% - 76px);
  height: 2px;
  background: var(--border-color);
  z-index: 0;
}
.flow-step:last-child::after { display: none; }
.flow-num {
  width: 64px;
  height: 64px;
  background: #fff;
  border: 2px solid var(--primary);
  color: var(--primary);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 700;
  margin-bottom: 18px;
  position: relative;
  z-index: 1;
  font-variant-numeric: tabular-nums;
  transition: var(--transition);
}
.flow-step:hover .flow-num {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 8px 20px rgba(14, 124, 123, 0.2);
}
.flow-step h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--title-color);
  margin-bottom: 8px;
}
.flow-step p {
  font-size: 13px;
  color: var(--muted-text);
  line-height: 1.6;
}

/* ===== Service Scope ===== */
.scope-rows {
  display: flex;
  flex-direction: column;
  gap: 48px;
}
.scope-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  align-items: center;
}
.scope-row:nth-child(even) .scope-img { order: 2; }
.scope-img {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
}
.scope-img img {
  width: 100%;
  height: 280px;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}
.scope-row:hover .scope-img img { transform: scale(1.03); }
.scope-text h3 {
  font-size: 24px;
  font-weight: 700;
  color: var(--title-color);
  margin-bottom: 14px;
  position: relative;
  padding-bottom: 14px;
}
.scope-text h3::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background: var(--accent);
  border-radius: 2px;
}
.scope-text p {
  font-size: 15px;
  line-height: 1.8;
  color: var(--text-color);
  margin-bottom: 20px;
}
.scope-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.scope-tag {
  display: inline-block;
  font-size: 13px;
  color: var(--primary);
  background: var(--light-bg);
  padding: 6px 14px;
  border-radius: 20px;
  font-weight: 500;
}

/* ===== Advantages ===== */
.advantages-section {
  background: var(--primary-deep);
  position: relative;
  overflow: hidden;
}
.advantages-section::before {
  content: "";
  position: absolute;
  bottom: -120px;
  left: -80px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.06) 0%, transparent 70%);
  border-radius: 50%;
}
.advantages-section .section-head h2 { color: #fff; }
.advantages-section .section-head h2::after { background: var(--accent); }
.advantages-section .section-head p { color: rgba(255, 255, 255, 0.7); }

.advantages-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
  position: relative;
  z-index: 2;
}
.advantage-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius);
  padding: 32px 28px;
  transition: var(--transition);
}
.advantage-card:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-4px);
}
.adv-icon {
  width: 48px;
  height: 48px;
  border-radius: 10px;
  background: rgba(255, 122, 69, 0.2);
  color: var(--accent);
  font-size: 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 18px;
}
.advantage-card h3 {
  font-size: 18px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 10px;
}
.advantage-card p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.75);
  margin-bottom: 0;
}

/* ===== FAQ ===== */
.faq-wrapper {
  max-width: 820px;
  margin: 0 auto;
}
.faq-item {
  background: #fff;
  border: 1px solid var(--border-color);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  transition: box-shadow 0.3s ease;
}
.faq-item:hover { box-shadow: var(--shadow); }
.faq-item.active { border-left: 3px solid var(--primary); }
.faq-question {
  width: 100%;
  background: transparent;
  border: none;
  padding: 22px 28px;
  font-family: var(--font-stack);
  font-size: 17px;
  font-weight: 600;
  color: var(--title-color);
  text-align: left;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}
.faq-question .faq-icon {
  font-size: 14px;
  color: var(--primary);
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--light-bg);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: transform 0.3s ease;
}
.faq-item.active .faq-question .faq-icon { transform: rotate(45deg); }
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease;
  padding: 0 28px;
}
.faq-item.active .faq-answer {
  max-height: 400px;
  padding: 0 28px 22px;
}
.faq-answer p {
  font-size: 15px;
  line-height: 1.7;
  color: var(--text-color);
  margin-bottom: 0;
}

/* ===== Contact ===== */
.contact-section {
  background: #fff;
  border-top: 1px solid var(--border-color);
  position: relative;
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.contact-info h2 {
  font-size: 32px;
  font-weight: 700;
  color: var(--title-color);
  line-height: 1.3;
  margin-bottom: 16px;
}
.contact-info p {
  font-size: 16px;
  line-height: 1.8;
  color: var(--text-color);
  margin-bottom: 32px;
}
.contact-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.contact-list li {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 15px;
  color: var(--text-color);
}
.contact-list .list-icon {
  width: 44px;
  height: 44px;
  background: var(--light-bg);
  color: var(--primary);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
}
.contact-list strong {
  display: block;
  color: var(--title-color);
  font-size: 16px;
}

.contact-form-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius);
  padding: 36px;
  box-shadow: var(--shadow);
}
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 600;
  color: var(--title-color);
  margin-bottom: 8px;
}
.form-control {
  width: 100%;
  height: 44px;
  border: 1px solid #DCE3E6;
  border-radius: var(--radius-sm);
  padding: 0 14px;
  font-size: 15px;
  font-family: var(--font-stack);
  color: var(--title-color);
  background: #fff;
  transition: var(--transition);
  outline: none;
}
.form-control:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(14, 124, 123, 0.12);
}
textarea.form-control {
  height: 100px;
  padding: 12px 14px;
  resize: vertical;
}
.form-select {
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238A9A9D' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}
.form-submit { width: 100%; margin-top: 4px; }
.form-note {
  text-align: center;
  font-size: 13px;
  color: var(--muted-text);
  margin-top: 14px;
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary-deep);
  color: rgba(255, 255, 255, 0.8);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}
.footer-logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 16px;
}
.footer-logo:hover { color: #fff; opacity: 0.9; }
.footer-brand p {
  font-size: 14px;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.65);
  max-width: 300px;
  margin-bottom: 0;
}
.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: #fff;
  margin-bottom: 20px;
  position: relative;
  padding-bottom: 10px;
}
.footer-col h4::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.footer-col a {
  display: block;
  color: rgba(255, 255, 255, 0.65);
  font-size: 14px;
  margin-bottom: 12px;
  transition: var(--transition);
}
.footer-col a:hover { color: #fff; padding-left: 4px; }
.footer-col p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-col p i { color: var(--accent); font-size: 15px; }
.placeholder-qr {
  width: 120px;
  height: 120px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px dashed rgba(255, 255, 255, 0.25);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
  line-height: 1.5;
  margin-top: 8px;
}
.footer-bottom {
  padding: 22px 0;
  text-align: center;
}
.footer-bottom p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.5);
  margin: 0;
}

/* ===== Responsive ===== */
@media (max-width: 1199px) {
  .hero-visual { max-width: 100%; }
  .hero-img-wrap img { height: 340px; }
}

@media (max-width: 991px) {
  .section { padding: 70px 0; }
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .standards-grid { grid-template-columns: repeat(2, 1fr); }
  .advantages-grid { grid-template-columns: repeat(2, 1fr); }
  .flow-steps { grid-template-columns: repeat(3, 1fr); row-gap: 40px; }
  .flow-step::after { display: none; }
  .header-search { display: none; }
  .main-nav {
    position: fixed;
    top: 64px;
    left: 0;
    right: 0;
    background: #fff;
    flex-direction: column;
    align-items: flex-start;
    padding: 16px 24px 24px;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.08);
    gap: 4px;
    transform: translateY(-16px);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: var(--transition);
  }
  .main-nav.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
  }
  .main-nav .nav-link {
    display: block;
    width: 100%;
    font-size: 16px;
    padding: 12px 8px;
    border-bottom: 1px solid var(--border-color);
  }
  .main-nav .nav-link::after { display: none; }
  .nav-toggle { display: flex; }
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
  .hero-visual { max-width: 90%; margin: 0 auto; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .scope-row { grid-template-columns: 1fr; gap: 24px; }
  .scope-row:nth-child(even) .scope-img { order: 0; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 767px) {
  .section { padding: 50px 0; }
  .cate-hero { padding: 130px 0 50px; }
  .cate-hero h1 { font-size: 32px; }
  .hero-actions .btn { width: 100%; }
  .standards-grid { grid-template-columns: 1fr; }
  .advantages-grid { grid-template-columns: 1fr; }
  .flow-steps { grid-template-columns: 1fr; gap: 32px; text-align: center; }
  .hero-float-card { left: 8px; bottom: 12px; max-width: 220px; }
  .contact-form-card { padding: 24px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .stats-grid { grid-template-columns: 1fr 1fr; }
  .stat-number { font-size: 28px; }
  .section-head h2 { font-size: 26px; }
  .hero-breadcrumb { font-size: 12px; flex-wrap: wrap; }
  .form-submit { padding: 12px 16px; }
  .btn-accent, .btn-outline { width: auto; }
}

/* roulang page: article */
/* =========== 设计变量 =========== */
        :root {
            --brand: #0E7C7B;
            --brand-dark: #0A5F5E;
            --brand-darker: #0A3D3D;
            --accent: #FF7A45;
            --accent-hover: #FF6A2B;
            --brand-soft: #E3F2F1;
            --page-bg: #F6F8F7;
            --title-color: #1C2A2D;
            --body-color: #4A5A5E;
            --muted: #8A9A9D;
            --border: #E3E8E6;
            --card-radius: 14px;
            --shadow: 0 6px 24px rgba(14, 124, 123, 0.06);
            --shadow-hover: 0 12px 32px rgba(14, 124, 123, 0.12);
            --container: 1200px;
            --space-section: 96px;
            --font-family: "PingFang SC", "Microsoft YaHei", "Noto Sans SC", sans-serif;
        }

        /* =========== Reset / Base =========== */
        *,
        *::before,
        *::after {
            box-sizing: border-box;
        }

        html {
            scroll-behavior: smooth;
        }

        body {
            margin: 0;
            font-family: var(--font-family);
            font-size: 16px;
            line-height: 1.75;
            color: var(--body-color);
            background: var(--page-bg);
        }

        a {
            color: var(--brand);
            text-decoration: none;
            transition: color .2s ease;
        }

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

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

        button,
        input,
        select,
        textarea {
            font-family: inherit;
        }

        h1,
        h2,
        h3,
        h4,
        h5,
        h6 {
            color: var(--title-color);
            font-weight: 700;
            line-height: 1.3;
            margin: 0 0 16px 0;
        }

        .container {
            max-width: var(--container);
            padding-left: 24px;
            padding-right: 24px;
        }

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

        /* =========== 导航 =========== */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1050;
            height: 64px;
            background: transparent;
            transition: background .3s ease, box-shadow .3s ease;
        }

        .site-header.scrolled {
            background: rgba(255, 255, 255, .97);
            box-shadow: 0 4px 20px rgba(28, 42, 45, .08);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 64px;
        }

        .brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            text-decoration: none;
            color: var(--title-color);
            font-weight: 700;
            font-size: 18px;
            margin: 0;
        }

        .brand-logo a.brand-logo {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--title-color);
            font-weight: 700;
            font-size: 18px;
        }

        .brand-logo a.brand-logo:hover {
            color: var(--title-color);
        }

        .brand-logo svg {
            flex-shrink: 0;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 28px;
            margin-left: 36px;
        }

        .main-nav .nav-link {
            font-size: 14px;
            font-weight: 500;
            color: var(--body-color);
            text-decoration: none;
            padding: 8px 0;
            position: relative;
            white-space: nowrap;
            transition: color .2s ease;
        }

        .main-nav .nav-link:hover {
            color: var(--brand);
        }

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

        .main-nav .nav-link.active::after {
            content: "";
            position: absolute;
            left: 0;
            right: 0;
            bottom: 0;
            height: 2px;
            border-radius: 2px;
            background: var(--brand);
        }

        .header-actions {
            display: flex;
            align-items: center;
            gap: 14px;
        }

        .header-search {
            position: relative;
            width: 170px;
        }

        .header-search input {
            width: 100%;
            height: 36px;
            border: 1px solid var(--border);
            border-radius: 8px;
            background: rgba(255, 255, 255, .85);
            padding: 0 36px 0 14px;
            font-size: 13px;
            color: var(--title-color);
            outline: none;
            transition: border-color .2s, box-shadow .2s;
        }

        .header-search input:focus {
            border-color: var(--brand);
            box-shadow: 0 0 0 3px rgba(14, 124, 123, .12);
        }

        .header-search i {
            position: absolute;
            right: 12px;
            top: 50%;
            transform: translateY(-50%);
            font-size: 14px;
            color: var(--muted);
            pointer-events: none;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            width: 40px;
            height: 40px;
            align-items: center;
            justify-content: center;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 8px;
            cursor: pointer;
            transition: background .2s, border-color .2s;
        }

        .nav-toggle:hover {
            background: var(--brand-soft);
            border-color: var(--brand);
        }

        .nav-toggle span {
            display: block;
            width: 18px;
            height: 2px;
            background: var(--title-color);
            border-radius: 2px;
            transition: transform .3s, opacity .3s;
        }

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

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

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

        /* =========== 按钮 =========== */
        .btn {
            border-radius: 8px;
            font-weight: 600;
            padding: 12px 28px;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            gap: 8px;
            border: none;
            cursor: pointer;
            transition: all .25s ease;
            text-decoration: none;
            white-space: nowrap;
        }

        .btn-accent {
            background: var(--accent);
            color: #fff;
        }

        .btn-accent:hover {
            background: var(--accent-hover);
            color: #fff;
            box-shadow: 0 8px 20px rgba(255, 122, 69, .3);
            transform: translateY(-2px);
        }

        .btn-accent:active {
            transform: translateY(0);
            box-shadow: 0 4px 10px rgba(255, 122, 69, .2);
        }

        .btn-outline-brand {
            background: transparent;
            border: 1.5px solid var(--brand);
            color: var(--brand);
        }

        .btn-outline-brand:hover {
            background: var(--brand-soft);
            color: var(--brand-dark);
            transform: translateY(-2px);
        }

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

        .btn:focus-visible {
            outline: 2px solid var(--brand);
            outline-offset: 2px;
        }

        .btn-sm {
            padding: 8px 18px;
            font-size: 14px;
        }

        /* =========== 文章顶部 =========== */
        .article-top {
            position: relative;
            padding: 152px 0 56px;
            background: linear-gradient(180deg, var(--brand-soft) 0%, var(--page-bg) 100%);
            overflow: hidden;
        }

        .article-top::before {
            content: "";
            position: absolute;
            inset: 0;
            background-image: url('/assets/images/backpic/back-2.webp');
            background-size: cover;
            background-position: center;
            opacity: .08;
        }

        .article-top .container {
            position: relative;
            z-index: 1;
        }

        .breadcrumb-nav {
            font-size: 14px;
            color: var(--muted);
            margin-bottom: 20px;
        }

        .breadcrumb-nav a {
            color: var(--muted);
            text-decoration: none;
            transition: color .2s;
        }

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

        .breadcrumb-nav .sep {
            margin: 0 8px;
            color: var(--border);
        }

        .breadcrumb-nav .current {
            color: var(--body-color);
            font-weight: 500;
        }

        .article-category-badge {
            display: inline-block;
            background: var(--brand);
            color: #fff;
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 12px;
        }

        .article-h1 {
            font-size: clamp(36px, 4vw, 56px);
            line-height: 1.2;
            font-weight: 700;
            color: var(--title-color);
            max-width: 860px;
        }

        .article-meta {
            display: flex;
            flex-wrap: wrap;
            gap: 12px;
            align-items: center;
            margin-top: 18px;
        }

        .article-meta .meta-item {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            background: #fff;
            color: var(--brand-dark);
            border: 1px solid var(--border);
            border-radius: 50px;
            padding: 6px 14px;
            font-size: 13px;
            line-height: 1.4;
        }

        .meta-item i {
            font-size: 14px;
            color: var(--brand);
        }

        .article-lead {
            background: #fff;
            border-left: 4px solid var(--brand);
            border-radius: 0 12px 12px 0;
            padding: 20px 24px;
            color: var(--body-color);
            font-size: 15px;
            line-height: 1.8;
            box-shadow: var(--shadow);
            margin-top: 28px;
            overflow: hidden;
            display: -webkit-box;
            -webkit-line-clamp: 3;
            -webkit-box-orient: vertical;
        }

        /* =========== 正文 =========== */
        .article-content-section {
            padding: 72px 0 32px;
        }

        .article-main {
            max-width: 760px;
            margin: 0 auto;
        }

        .article-body {
            font-size: 17px;
            line-height: 1.9;
            color: var(--body-color);
        }

        .article-body p {
            margin-bottom: 28px;
        }

        .article-body h3 {
            font-size: 24px;
            font-weight: 700;
            color: var(--title-color);
            margin: 40px 0 16px;
            padding-left: 14px;
            border-left: 4px solid var(--brand);
            line-height: 1.4;
        }

        .article-body h4 {
            font-size: 20px;
            font-weight: 600;
            color: var(--title-color);
            margin: 32px 0 12px;
        }

        .article-body ul,
        .article-body ol {
            margin: 0 0 28px 22px;
            padding: 0;
        }

        .article-body li {
            margin-bottom: 10px;
        }

        .article-body img {
            display: block;
            max-width: 100%;
            height: auto;
            margin: 32px auto;
            border-radius: 12px;
            box-shadow: var(--shadow);
        }

        .article-body blockquote {
            border-left: 4px solid var(--brand);
            background: var(--brand-soft);
            padding: 18px 24px;
            margin: 32px 0;
            border-radius: 0 12px 12px 0;
            font-size: 16px;
            line-height: 1.7;
            color: var(--title-color);
        }

        .article-body table {
            width: 100%;
            max-width: 100%;
            border-collapse: collapse;
            margin: 32px 0;
            font-size: 15px;
            display: block;
            overflow-x: auto;
        }

        .article-body table th {
            background: var(--brand-soft);
            color: var(--brand-dark);
            font-weight: 600;
        }

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

        .article-body table th:first-child,
        .article-body table td:first-child {
            white-space: normal;
        }

        .article-body pre {
            background: #1C2A2D;
            color: #E3F2F1;
            padding: 20px;
            border-radius: 12px;
            overflow-x: auto;
            font-size: 14px;
            margin: 32px 0;
        }

        .article-body code {
            background: var(--brand-soft);
            color: var(--brand-dark);
            border-radius: 4px;
            padding: 2px 6px;
            font-size: 14px;
            font-family: "SFMono-Regular", Consolas, monospace;
        }

        .article-body pre code {
            background: transparent;
            color: inherit;
            padding: 0;
        }

        .article-body hr {
            margin: 40px 0;
            border: 0;
            border-top: 1px solid var(--border);
        }

        /* =========== 相关推荐 =========== */
        .related-section {
            padding: var(--space-section) 0;
            background: var(--page-bg);
        }

        .related-section .section-head {
            display: flex;
            align-items: center;
            justify-content: space-between;
            margin-bottom: 36px;
        }

        .related-section .section-head h2 {
            margin: 0;
            font-size: clamp(24px, 2.2vw, 34px);
            font-weight: 700;
        }

        .section-head {
            margin-bottom: 40px;
        }

        .section-head h2 {
            margin-bottom: 0;
            font-size: clamp(26px, 2.4vw, 40px);
            font-weight: 700;
            position: relative;
            padding-left: 14px;
        }

        .section-head h2::before {
            content: "";
            position: absolute;
            left: 0;
            top: 6px;
            bottom: 6px;
            width: 4px;
            border-radius: 4px;
            background: var(--brand);
        }

        .text-link {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 14px;
            font-weight: 500;
            color: var(--brand);
            text-decoration: none;
        }

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

        .related-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: var(--card-radius);
            overflow: hidden;
            display: block;
            height: 100%;
            text-decoration: none;
            transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease;
        }

        .related-card:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-hover);
            border-color: rgba(14, 124, 123, .3);
        }

        .related-card .related-img {
            position: relative;
            aspect-ratio: 16 / 9;
            overflow: hidden;
            background: var(--brand-soft);
        }

        .related-card .related-img img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform .4s ease;
        }

        .related-card:hover .related-img img {
            transform: scale(1.04);
        }

        .related-card .related-img .tag {
            position: absolute;
            left: 14px;
            top: 14px;
            background: rgba(14, 124, 123, .92);
            color: #fff;
            font-size: 12px;
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 50px;
        }

        .related-card .related-body {
            padding: 22px 24px 24px;
        }

        .related-card h3 {
            font-size: 18px;
            font-weight: 600;
            color: var(--title-color);
            margin-bottom: 10px;
            line-height: 1.5;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        .related-card:hover h3 {
            color: var(--brand);
        }

        .related-card p {
            font-size: 14px;
            color: var(--muted);
            margin: 0;
            line-height: 1.7;
            display: -webkit-box;
            -webkit-line-clamp: 2;
            -webkit-box-orient: vertical;
            overflow: hidden;
        }

        /* =========== 返回链接 =========== */
        .back-links {
            padding: 0 0 80px;
        }

        .back-link-row {
            display: flex;
            flex-wrap: wrap;
            justify-content: center;
            gap: 20px;
        }

        .back-link-row a {
            display: inline-flex;
            align-items: center;
            gap: 6px;
            font-size: 15px;
            font-weight: 500;
            color: var(--brand);
            padding: 8px 20px;
            border: 1.5px solid var(--brand);
            border-radius: 50px;
            transition: background .2s, color .2s, transform .2s;
        }

        .back-link-row a:hover {
            background: var(--brand);
            color: #fff;
            transform: translateY(-2px);
        }

        /* =========== 咨询表单区 =========== */
        .contact-cta {
            padding: var(--space-section) 0;
            background: linear-gradient(180deg, var(--page-bg), var(--brand-soft) 100%);
            border-top: 1px solid var(--border);
        }

        .cta-wrap {
            align-items: center;
        }

        .cta-info .eyebrow {
            display: inline-block;
            background: var(--brand-soft);
            color: var(--brand-dark);
            font-size: 13px;
            font-weight: 600;
            padding: 6px 16px;
            border-radius: 50px;
            margin-bottom: 16px;
        }

        .cta-info h2 {
            font-size: clamp(26px, 2.4vw, 40px);
            font-weight: 700;
            color: var(--title-color);
            margin-bottom: 16px;
        }

        .cta-info p {
            font-size: 16px;
            color: var(--body-color);
            margin-bottom: 24px;
            max-width: 440px;
        }

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

        .contact-list li {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 14px;
            color: var(--body-color);
            font-size: 15px;
        }

        .contact-list li i {
            color: var(--brand);
            font-size: 18px;
            width: 24px;
        }

        .contact-form-card {
            background: #fff;
            border: 1px solid var(--border);
            border-radius: 16px;
            box-shadow: var(--shadow);
            padding: 32px;
        }

        .contact-form-card label {
            font-size: 14px;
            font-weight: 600;
            color: var(--title-color);
            margin-bottom: 6px;
            display: inline-block;
        }

        .contact-form-card .form-control,
        .contact-form-card .form-select {
            width: 100%;
            height: 44px;
            border: 1px solid #DCE3E6;
            border-radius: 8px;
            background: #fff;
            font-size: 15px;
            color: var(--title-color);
            padding: 8px 14px;
            transition: border-color .2s, box-shadow .2s;
        }

        .contact-form-card .form-control:focus,
        .contact-form-card .form-select:focus {
            border-color: var(--brand);
            box-shadow: 0 0 0 4px rgba(14, 124, 123, .12);
            outline: none;
        }

        .contact-form-card textarea.form-control {
            height: auto;
            min-height: 90px;
            resize: vertical;
        }

        .contact-form-card .btn {
            width: 100%;
        }

        .form-note {
            font-size: 13px;
            color: var(--muted);
            text-align: center;
            margin-top: 12px;
        }

        .form-success-msg {
            display: none;
            background: var(--brand-soft);
            color: var(--brand-dark);
            border-radius: 8px;
            padding: 12px 16px;
            font-size: 14px;
            margin-top: 12px;
            text-align: center;
        }

        /* =========== 404 / 未找到 =========== */
        .not-found-page .article-h1 {
            font-size: clamp(28px, 3vw, 44px);
        }

        .lead-muted {
            color: var(--muted);
            font-size: 16px;
            margin: 16px 0 28px;
        }

        .not-found-box {
            text-align: center;
            padding: 80px 24px;
            background: #fff;
            border: 1px dashed var(--border);
            border-radius: 16px;
        }

        .not-found-box i {
            font-size: 56px;
            color: var(--brand);
            display: block;
            margin-bottom: 16px;
        }

        .not-found-box p {
            font-size: 18px;
            color: var(--body-color);
            margin-bottom: 24px;
        }

        /* =========== 页脚 =========== */
        .site-footer {
            background: var(--brand-darker);
            color: rgba(255, 255, 255, .8);
            padding-top: 72px;
        }

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

        .footer-brand a.footer-logo {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            color: #fff;
            font-size: 20px;
            font-weight: 700;
            margin-bottom: 16px;
            text-decoration: none;
        }

        .footer-brand p {
            font-size: 14px;
            line-height: 1.8;
            margin: 0;
            color: rgba(255, 255, 255, .65);
            max-width: 300px;
        }

        .footer-col h4 {
            color: #fff;
            font-size: 16px;
            font-weight: 600;
            margin-bottom: 18px;
        }

        .footer-col a {
            display: block;
            color: rgba(255, 255, 255, .65);
            font-size: 14px;
            line-height: 2;
            text-decoration: none;
            transition: color .2s, padding-left .2s;
        }

        .footer-col a:hover {
            color: #fff;
            padding-left: 4px;
        }

        .footer-col p {
            font-size: 14px;
            color: rgba(255, 255, 255, .65);
            display: flex;
            align-items: center;
            gap: 8px;
            margin-bottom: 10px;
        }

        .footer-col p i {
            color: #fff;
        }

        .placeholder-qr {
            background: rgba(255, 255, 255, .12);
            border: 1px dashed rgba(255, 255, 255, .35);
            border-radius: 10px;
            padding: 18px 12px;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .75);
            margin-top: 4px;
            line-height: 1.6;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 255, 255, .12);
            padding: 20px 0;
            text-align: center;
            font-size: 13px;
            color: rgba(255, 255, 255, .45);
        }

        .footer-bottom p {
            margin: 0;
        }

        /* =========== 响应式 =========== */
        @media (max-width: 1199.98px) {
            .header-search {
                width: 140px;
            }

            .main-nav {
                gap: 20px;
                margin-left: 20px;
            }

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

            .footer-brand {
                grid-column: span 3;
            }
        }

        @media (max-width: 991.98px) {
            .header-actions .header-search {
                display: none;
            }

            .main-nav {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: #fff;
                padding: 16px 24px;
                flex-direction: column;
                align-items: flex-start;
                gap: 4px;
                box-shadow: 0 12px 32px rgba(28, 42, 45, .12);
                display: none;
                border-radius: 0 0 14px 14px;
            }

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

            .main-nav .nav-link {
                display: block;
                width: 100%;
                padding: 12px 4px;
                font-size: 15px;
                border-bottom: 1px solid var(--border);
            }

            .main-nav .nav-link.active::after {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .article-top {
                padding: 128px 0 48px;
            }

            .article-h1 {
                font-size: clamp(30px, 5vw, 42px);
            }

            .contact-cta .cta-info {
                margin-bottom: 32px;
            }

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

            .footer-brand {
                grid-column: span 2;
            }
        }

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

            .header-inner {
                padding-left: 16px;
                padding-right: 16px;
            }

            .brand-logo span {
                font-size: 16px;
            }

            .brand-logo svg {
                width: 24px;
                height: 24px;
            }

            .article-top {
                padding: 112px 0 40px;
            }

            .article-h1 {
                font-size: 28px;
                line-height: 1.3;
            }

            .article-lead {
                padding: 16px 18px;
                -webkit-line-clamp: 4;
            }

            .article-content-section {
                padding: 48px 0 24px;
            }

            .article-body {
                font-size: 16px;
                line-height: 1.85;
            }

            .article-body h3 {
                font-size: 20px;
            }

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

            .contact-cta {
                padding: 56px 0;
            }

            .contact-form-card {
                padding: 20px;
            }

            .back-links {
                padding: 0 0 48px;
            }

            .back-link-row {
                flex-direction: column;
                align-items: center;
            }

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

            .footer-brand {
                grid-column: span 1;
            }

            .site-footer {
                padding-top: 48px;
            }
        }

        @media (max-width: 575.98px) {
            .header-actions .btn {
                font-size: 13px;
                padding: 8px 14px;
            }

            .article-meta {
                gap: 8px;
            }

            .article-meta .meta-item {
                font-size: 12px;
                padding: 4px 10px;
            }

            .contact-list li {
                font-size: 14px;
            }
        }

/* roulang page: category2 */
:root {
      --primary: #0E7C7B;
      --primary-dark: #0A5F5E;
      --accent: #FF7A45;
      --accent-hover: #FF6A2B;
      --teal-light: #E3F2F1;
      --bg-body: #F6F8F7;
      --white: #FFFFFF;
      --text-heading: #1C2A2D;
      --text-body: #4A5A5E;
      --text-muted: #8A9A9D;
      --border: #E3E8E6;
      --radius-lg: 14px;
      --radius-md: 12px;
      --radius-sm: 8px;
      --shadow-card: 0 6px 24px rgba(14,124,123,0.06);
      --shadow-hover: 0 12px 32px rgba(14,124,123,0.12);
      --section-gap: 96px;
      --section-gap-mobile: 48px;
      --header-h: 64px;
    }

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

    html { scroll-behavior: smooth; }

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

    a { text-decoration: none; color: var(--primary); transition: color 0.25s; }
    a:hover { color: var(--primary-dark); }
    img { max-width: 100%; display: block; }
    ul, ol { list-style: none; }
    button, input, select, textarea { font-family: inherit; font-size: inherit; }
    .container { max-width: 1200px; padding-left: 24px; padding-right: 24px; }
    section { scroll-margin-top: 80px; }
    .section-gap { padding: 96px 0; }
    @media (max-width: 768px) { .section-gap { padding: 48px 0; } }

    /* ===== 导航 ===== */
    .site-header {
      position: fixed; top: 0; left: 0; right: 0; z-index: 1000;
      height: var(--header-h);
      background: transparent;
      transition: background 0.3s, box-shadow 0.3s;
      display: flex; align-items: center;
    }
    .site-header.scrolled {
      background: rgba(255,255,255,0.96);
      box-shadow: 0 4px 20px rgba(14,124,123,0.08);
      backdrop-filter: none;
    }
    .header-inner {
      display: flex; align-items: center; justify-content: space-between;
      width: 100%; height: 100%;
    }
    .brand-logo { display: flex; align-items: center; gap: 8px; }
    .brand-logo a.brand-logo {
      color: var(--text-heading); font-size: 20px; font-weight: 700;
      display: inline-flex; align-items: center; gap: 8px;
    }
    .brand-logo a.brand-logo:hover { color: var(--primary); }
    .main-nav { display: flex; align-items: center; gap: 6px; margin-left: 24px; }
    .nav-link {
      font-size: 14px; color: var(--text-body); font-weight: 500;
      padding: 6px 14px; border-radius: 20px; transition: all 0.25s;
      position: relative;
    }
    .nav-link:hover { color: var(--primary); background: var(--teal-light); }
    .nav-link.active { color: var(--primary); font-weight: 600; background: var(--teal-light); }
    .nav-link.active::after {
      content: ""; position: absolute; left: 14px; right: 14px; bottom: 0;
      height: 2px; background: var(--primary); border-radius: 2px;
    }
    .header-actions { display: flex; align-items: center; gap: 14px; }
    .header-search { position: relative; width: 180px; }
    .header-search input {
      width: 100%; height: 38px; border: 1px solid var(--border); border-radius: 20px;
      padding: 0 18px 0 38px; font-size: 14px; background: rgba(255,255,255,0.9);
      transition: border-color 0.25s, box-shadow 0.25s; color: var(--text-body);
    }
    .header-search input:focus { outline: none; border-color: var(--primary); box-shadow: 0 0 0 3px rgba(14,124,123,0.12); }
    .header-search i { position: absolute; left: 14px; top: 50%; transform: translateY(-50%); color: var(--text-muted); font-size: 14px; }
    .btn { border-radius: var(--radius-sm); padding: 12px 28px; font-weight: 600; border: none; transition: all 0.25s; font-size: 15px; display: inline-flex; align-items: center; gap: 8px; cursor: pointer; }
    .btn:focus-visible, .nav-link:focus-visible, .accordion-button:focus-visible, .header-search input:focus-visible, .form-control:focus-visible, textarea:focus-visible { outline: 2px solid var(--primary); outline-offset: 2px; }
    .btn-accent { background: var(--accent); color: #fff; }
    .btn-accent:hover { background: var(--accent-hover); color: #fff; transform: translateY(-2px); box-shadow: 0 8px 20px rgba(255,122,69,0.3); }
    .btn-accent:active { transform: translateY(0); box-shadow: 0 4px 12px rgba(255,122,69,0.2); }
    .btn-outline { background: transparent; color: var(--primary); border: 1.5px solid var(--primary); }
    .btn-outline:hover { background: var(--teal-light); color: var(--primary); transform: translateY(-2px); box-shadow: 0 8px 20px rgba(14,124,123,0.15); }
    .btn-outline:active { transform: translateY(0); box-shadow: none; }
    .btn-sm { padding: 8px 20px; font-size: 14px; }
    .btn-lg { padding: 16px 36px; font-size: 16px; }
    .nav-toggle { display: none; background: none; border: none; cursor: pointer; flex-direction: column; gap: 5px; padding: 8px; border-radius: 6px; }
    .nav-toggle span { width: 24px; height: 2px; background: var(--text-heading); border-radius: 2px; transition: transform 0.3s, opacity 0.3s; }

    /* ===== Hero ===== */
    .category-hero {
      position: relative; overflow: hidden;
      padding: calc(var(--header-h) + 48px) 0 72px;
      background: linear-gradient(120deg, #E3F2F1 0%, #F6F8F7 55%, #FFFFFF 100%);
    }
    .category-hero::before {
      content: ""; position: absolute; inset: 0; z-index: 0;
      background: url("/assets/images/backpic/back-1.webp") center/cover no-repeat;
      opacity: 0.1;
    }
    .hero-container { position: relative; z-index: 1; display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 60px; align-items: center; }
    .hero-eyebrow {
      display: inline-flex; align-items: center; gap: 8px;
      background: var(--teal-light); color: var(--primary);
      border-radius: 40px; padding: 8px 18px; font-size: 14px; font-weight: 600;
      margin-bottom: 20px;
    }
    .hero-title { font-size: clamp(36px, 4vw, 54px); line-height: 1.2; font-weight: 700; color: var(--text-heading); letter-spacing: -0.01em; margin-bottom: 16px; }
    .hero-subtitle { font-size: 18px; color: var(--text-body); max-width: 520px; line-height: 1.8; margin-bottom: 32px; }
    .hero-actions { display: flex; flex-wrap: wrap; gap: 16px; margin-bottom: 28px; }
    .hero-trust { display: flex; flex-wrap: wrap; gap: 24px; }
    .hero-trust span { display: inline-flex; align-items: center; gap: 8px; font-size: 14px; color: var(--text-body); }
    .hero-trust i { color: var(--primary); font-size: 16px; }
    .hero-visual { position: relative; }
    .hero-visual img { border-radius: 16px; box-shadow: var(--shadow-hover); width: 100%; height: 100%; object-fit: cover; }
    .hero-visual .float-card {
      position: absolute; bottom: 24px; left: -20px;
      background: #fff; border-radius: 12px; padding: 16px 20px;
      box-shadow: 0 10px 30px rgba(14,124,123,0.15);
      display: flex; align-items: center; gap: 12px;
    }
    .hero-visual .float-card i { font-size: 26px; color: var(--primary); }
    .hero-visual .float-card strong { display: block; font-size: 20px; color: var(--text-heading); line-height: 1.2; }
    .hero-visual .float-card small { font-size: 12px; color: var(--text-muted); }
    .hero-badge {
      position: absolute; top: 20px; right: -12px;
      background: var(--accent); color: #fff; border-radius: 50%;
      width: 82px; height: 82px; display: flex; align-items: center; justify-content: center;
      text-align: center; font-size: 13px; font-weight: 700; line-height: 1.3;
      box-shadow: 0 10px 24px rgba(255,122,69,0.35);
    }
    @media (max-width: 992px) {
      .hero-container { grid-template-columns: 1fr; gap: 36px; }
      .hero-visual .float-card { left: 12px; }
      .hero-badge { right: 12px; }
    }

    /* ===== 面包屑 ===== */
    .breadcrumb-bar { padding: 16px 0 0; background: var(--teal-light); }
    .breadcrumb-nav { font-size: 14px; color: var(--text-muted); display: flex; flex-wrap: wrap; gap: 6px; }
    .breadcrumb-nav a { color: var(--primary); }
    .breadcrumb-nav a:hover { text-decoration: underline; }
    .breadcrumb-nav .sep { color: #B5C4C3; }

    /* ===== 指标带 ===== */
    .metrics-section { padding: 64px 0; background: #fff; border-bottom: 1px solid var(--border); }
    .metrics-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; text-align: center; }
    .metric-item { position: relative; }
    .metric-item + .metric-item::before { content: ""; position: absolute; left: -20px; top: 50%; transform: translateY(-50%); width: 1px; height: 40px; background: var(--border); }
    .metric-icon { font-size: 32px; color: var(--primary); margin-bottom: 10px; }
    .metric-value { font-size: 36px; font-weight: 700; color: var(--text-heading); font-variant-numeric: tabular-nums; line-height: 1.2; }
    .metric-value span { font-size: 18px; color: var(--primary); margin-left: 2px; }
    .metric-label { font-size: 14px; color: var(--text-muted); margin-top: 4px; }
    @media (max-width: 768px) {
      .metrics-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
      .metric-item + .metric-item::before { display: none; }
    }

    /* ===== 板块标题 ===== */
    .section-head { max-width: 680px; margin-bottom: 48px; }
    .section-head.center { margin-left: auto; margin-right: auto; text-align: center; }
    .section-head h2 { font-size: clamp(26px, 2.4vw, 40px); color: var(--text-heading); font-weight: 700; line-height: 1.3; letter-spacing: -0.01em; }
    .section-head h2 i { color: var(--primary); font-style: normal; }
    .section-head p { margin-top: 12px; font-size: 16px; color: var(--text-muted); }
    .section-head .head-line { width: 40px; height: 3px; background: var(--primary); border-radius: 3px; margin: 16px 0; }
    .section-head.center .head-line { margin-left: auto; margin-right: auto; }

    /* ===== 方案体系 ===== */
    .solutions-section { background: var(--bg-body); }
    .solutions-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; }
    .solution-card {
      background: #fff; border: 1px solid var(--border); border-radius: var(--radius-lg);
      padding: 28px 24px; box-shadow: var(--shadow-card);
      transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
      position: relative; overflow: hidden;
    }
    .solution-card::before { content: ""; position: absolute; top: 0; left: 24px; right: 24px; height: 3px; background: var(--primary); border-radius: 0 0 4px 4px; opacity: 0; transition: opacity 0.3s; }
    .solution-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); border-color: rgba(14,124,123,0.3); }
    .solution-card:hover::before { opacity: 1; }
    .solution-icon {
      width: 52px; height: 52px; background: var(--teal-light); color: var(--primary);
      border-radius: 12px; display: flex; align-items: center; justify-content: center;
      font-size: 22px; margin-bottom: 18px;
    }
    .solution-card h3 { font-size: 18px; font-weight: 600; color: var(--text-heading); margin-bottom: 10px; }
    .solution-card p { font-size: 14px; color: var(--text-body); line-height: 1.7; margin-bottom: 16px; }
    .solution-card .link-more { font-size: 14px; font-weight: 600; color: var(--primary); display: inline-flex; align-items: center; gap: 6px; }
    .solution-card .link-more:hover { color: var(--primary-dark); }
    .solution-card .link-more i { font-size: 12px; transition: transform 0.2s; }
    .solution-card .link-more:hover i { transform: translateX(3px); }
    @media (max-width: 992px) { .solutions-grid { grid-template-columns: repeat(2, 1fr); } }
    @media (max-width: 576px) { .solutions-grid { grid-template-columns: 1fr; } }

    /* ===== 适用场景 ===== */
    .scenarios-section { background: #fff; }
    .scenario-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
    .scenario-item { display: flex; gap: 20px; background: var(--bg-body); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 24px; transition: transform 0.3s, box-shadow 0.3s; }
    .scenario-item:hover { transform: translateY(-3px); box-shadow: var(--shadow-hover); }
    .scenario-img { width: 120px; height: 96px; border-radius: 10px; object-fit: cover; flex-shrink: 0; background: var(--teal-light); }
    .scenario-body h3 { font-size: 20px; font-weight: 600; color: var(--text-heading); margin-bottom: 6px; }
    .scenario-body p { font-size: 15px; color: var(--text-body); line-height: 1.7; margin-bottom: 8px; }
    .scenario-tags { display: flex; flex-wrap: wrap; gap: 8px; }
    .scenario-tags span { font-size: 12px; background: var(--teal-light); color: var(--primary); border-radius: 20px; padding: 3px 10px; font-weight: 500; }
    @media (max-width: 768px) { .scenario-grid { grid-template-columns: 1fr; } .scenario-item { flex-direction: column; } .scenario-img { width: 100%; height: 160px; } }

    /* ===== 服务流程 ===== */
    .process-section { background: var(--bg-body); position: relative; }
    .process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px; counter-reset: step; }
    .process-step { position: relative; background: #fff; border-radius: var(--radius-lg); padding: 36px 24px 28px; border: 1px solid var(--border); box-shadow: var(--shadow-card); transition: transform 0.3s, box-shadow 0.3s; }
    .process-step:hover { transform: translateY(-4px); box-shadow: var(--shadow-hover); }
    .step-num {
      width: 48px; height: 48px; border-radius: 50%; background: var(--teal-light); color: var(--primary);
      display: flex; align-items: center; justify-content: center; font-size: 18px; font-weight: 700; margin-bottom: 16px;
      font-variant-numeric: tabular-nums;
    }
    .process-step::after { content: ""; position: absolute; top: 48px; right: -24px; width: 24px; height: 2px; background: var(--border); }
    .process-step:last-child::after { display: none; }
    .process-step h3 { font-size: 18px; font-weight: 600; color: var(--text-heading); margin-bottom: 8px; }
    .process-step p { font-size: 14px; color: var(--text-body); line-height: 1.7; }
    @media (max-width: 992px) { .process-grid { grid-template-columns: repeat(2, 1fr); } .process-step::after { display: none; } }
    @media (max-width: 576px) { .process-grid { grid-template-columns: 1fr; } }

    /* ===== 对比表 ===== */
    .compare-section { background: #fff; }
    .compare-wrap { overflow-x: auto; border-radius: var(--radius-lg); border: 1px solid var(--border); box-shadow: var(--shadow-card); background: #fff; }
    .compare-table { width: 100%; border-collapse: collapse; min-width: 700px; }
    .compare-table th { background: var(--teal-light); color: var(--text-heading); font-weight: 600; padding: 18px 20px; text-align: left; font-size: 15px; }
    .compare-table td { padding: 16px 20px; border-bottom: 1px solid var(--border); font-size: 15px; line-height: 1.6; vertical-align: top; }
    .compare-table tr:last-child td { border-bottom: none; }
    .compare-table .col-recommend { background: rgba(14,124,123,0.04); position: relative; }
    .compare-table th.col-recommend { background: rgba(14,124,123,0.08); }
    .badge-recommend {
      display: inline-block; background: var(--accent); color: #fff; font-size: 12px;
      padding: 3px 10px; border-radius: 20px; font-weight: 600; margin-left: 8px; vertical-align: 2px;
    }
    .compare-check { color: var(--primary); font-weight: 700; }
    .compare-times { color: #C0CBCD; font-weight: 700; }
    .compare-cta { padding: 20px; text-align: center; border-top: 1px solid var(--border); background: #FAFCFB; }
    .scroll-tip { font-size: 13px; color: var(--text-muted); margin-top: 12px; display: none; }
    @media (max-width: 768px) { .scroll-tip { display: flex; align-items: center; gap: 6px; } }

    /* ===== FAQ ===== */
    .faq-section { background: var(--bg-body); }
    .faq-wrap { max-width: 820px; margin: 0 auto; }
    .accordion-item {
      background: #fff; border: 1px solid var(--border) !important; border-radius: var(--radius-md) !important;
      margin-bottom: 12px; overflow: hidden; box-shadow: 0 2px 10px rgba(14,124,123,0.03);
    }
    .accordion-button {
      background: #fff !important; color: var(--text-heading) !important; font-size: 18px; font-weight: 600;
      padding: 20px 24px; box-shadow: none !important; transition: background 0.2s;
    }
    .accordion-button:not(.collapsed) { background: var(--teal-light) !important; color: var(--primary) !important; }
    .accordion-button::after { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%230E7C7B' viewBox='0 0 16 16'%3E%3Cpath fill-rule='evenodd' d='M8 2a.75.75 0 0 1 .75.75v4.5h4.5a.75.75 0 0 1 0 1.5h-4.5v4.5a.75.75 0 0 1-1.5 0v-4.5h-4.5a.75.75 0 0 1 0-1.5h4.5v-4.5A.75.75 0 0 1 8 2z'/%3E%3C/svg%3E"); }
    .accordion-body { padding: 4px 24px 20px; color: var(--text-body); font-size: 16px; line-height: 1.75; }

    /* ===== CTA / 表单 ===== */
    .contact-section { position: relative; padding: 96px 0; background: url("/assets/images/backpic/back-2.webp") center/cover no-repeat; }
    .contact-section::before { content: ""; position: absolute; inset: 0; background: rgba(10,63,61,0.9); }
    .contact-inner { position: relative; z-index: 2; display: grid; grid-template-columns: 1fr 1fr; gap: 60px; align-items: center; }
    .contact-info .section-head { margin-bottom: 32px; }
    .contact-info h2 { color: #fff; }
    .contact-info .section-head p { color: rgba(255,255,255,0.7); }
    .contact-list { display: flex; flex-direction: column; gap: 20px; margin-bottom: 28px; }
    .contact-list li { display: flex; align-items: center; gap: 14px; color: rgba(255,255,255,0.9); font-size: 15px; }
    .contact-list i { width: 40px; height: 40px; border-radius: 50%; background: rgba(255,255,255,0.12); display: flex; align-items: center; justify-content: center; color: #fff; font-size: 16px; flex-shrink: 0; }
    .contact-note { font-size: 14px; color: rgba(255,255,255,0.6); }
    .form-card { background: #fff; border-radius: var(--radius-lg); padding: 36px; box-shadow: 0 20px 50px rgba(0,0,0,0.2); }
    .form-card h3 { font-size: 22px; color: var(--text-heading); font-weight: 600; margin-bottom: 6px; }
    .form-card p { font-size: 14px; color: var(--text-muted); margin-bottom: 24px; }
    .form-control {
      background: #fff; border: 1px solid #DCE3E6; border-radius: var(--radius-sm);
      height: 44px; padding: 10px 14px; font-size: 15px; color: var(--text-body);
      transition: border-color 0.2s, box-shadow 0.2s;
    }
    .form-control:focus { border-color: var(--primary); box-shadow: 0 0 0 3px rgba(14,124,123,0.15); }
    textarea.form-control { height: auto; resize: vertical; min-height: 90px; }
    .form-label { font-size: 14px; color: var(--text-heading); font-weight: 600; margin-bottom: 6px; }
    .form-select { background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%230A5F5E' viewBox='0 0 16 16'%3E%3Cpath d='M4.5 6l3.5 4 3.5-4z'/%3E%3C/svg%3E"); }
    .form-actions .btn { width: 100%; justify-content: center; }
    .form-privacy { font-size: 12px; color: var(--text-muted); text-align: center; margin-top: 12px; }
    .form-success { font-size: 14px; color: var(--primary); background: var(--teal-light); border-radius: 8px; padding: 12px; text-align: center; margin-top: 12px; }
    @media (max-width: 992px) { .contact-inner { grid-template-columns: 1fr; gap: 40px; } .contact-section { padding: 64px 0; } }

    /* ===== 页脚 ===== */
    .site-footer { background: #0A3D3D; color: rgba(255,255,255,0.7); padding: 64px 0 0; }
    .footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 48px; padding-bottom: 48px; }
    .footer-logo { display: flex; align-items: center; gap: 10px; color: #fff !important; font-size: 20px; font-weight: 700; margin-bottom: 16px; }
    .footer-brand p { font-size: 14px; line-height: 1.8; }
    .footer-col h4 { color: #fff; font-size: 16px; font-weight: 600; margin-bottom: 18px; }
    .footer-col a { display: block; color: rgba(255,255,255,0.65); font-size: 14px; padding: 5px 0; transition: color 0.2s; }
    .footer-col a:hover { color: #fff; }
    .footer-col p { font-size: 14px; margin-bottom: 8px; }
    .footer-col i { margin-right: 8px; color: var(--accent); }
    .placeholder-qr {
      width: 112px; height: 112px; background: rgba(255,255,255,0.08); border: 1px dashed rgba(255,255,255,0.3);
      border-radius: 10px; display: flex; align-items: center; justify-content: center; text-align: center;
      font-size: 13px; color: rgba(255,255,255,0.7); margin-top: 10px;
    }
    .footer-bottom { border-top: 1px solid rgba(255,255,255,0.12); padding: 20px 0; text-align: center; font-size: 14px; color: rgba(255,255,255,0.5); }
    @media (max-width: 768px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; } }
    @media (max-width: 576px) { .footer-grid { grid-template-columns: 1fr; } }

    /* ===== 移动端导航 ===== */
    @media (max-width: 992px) {
      .header-search { display: none; }
      .main-nav {
        position: fixed; top: var(--header-h); left: 0; right: 0; background: #fff;
        flex-direction: column; align-items: flex-start; gap: 0;
        padding: 16px 24px 24px; box-shadow: 0 12px 30px rgba(0,0,0,0.1);
        transform: translateY(-16px); opacity: 0; visibility: hidden; pointer-events: none;
        transition: opacity 0.25s, transform 0.25s, visibility 0.25s;
        border-radius: 0 0 16px 16px;
      }
      .main-nav.open { opacity: 1; visibility: visible; pointer-events: auto; transform: translateY(0); }
      .main-nav .nav-link { width: 100%; padding: 12px 16px; font-size: 15px; border-radius: 8px; }
      .main-nav .nav-link.active::after { display: none; }
      .nav-toggle { display: flex; }
      .header-actions .btn-sm { display: none; }
    }
    @media (max-width: 576px) {
      .hero-actions .btn { width: 100%; justify-content: center; }
      .contact-inner { padding: 0; }
      .form-card { padding: 24px; }
      .section-gap { padding: 48px 0; }
    }