:root {
  --primary: #1B3A32;
  --primary-light: #2A5247;
  --primary-dark: #132A24;
  --accent: #D3A765;
  --accent-dark: #B8904F;
  --accent-light: #E8C78F;
  --bg-warm: #F7F4EF;
  --bg-white: #FFFFFF;
  --text-dark: #262624;
  --text-muted: #6B7B77;
  --text-light: #EAF3EF;
  --border: #E3DCCF;
  --border-dark: #3A5A52;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 24px rgba(0,0,0,0.1);
  --radius-sm: 8px;
  --radius: 14px;
  --radius-lg: 16px;
  --radius-xl: 24px;
  --font-main: "PingFang SC", "Noto Sans SC", "Microsoft YaHei", "Helvetica Neue", sans-serif;
  --container: 1200px;
  --header-h: 68px;
  --transition: all 0.25s ease;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  font-size: 16px;
  line-height: 1.7;
  color: var(--text-dark);
  background: var(--bg-warm);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

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

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

.container {
  max-width: var(--container);
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

section {
  position: relative;
}

.section-pad {
  padding: 80px 0;
}

.section-header {
  text-align: center;
  margin-bottom: 48px;
}

.section-header h2 {
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 700;
  line-height: 1.3;
  color: var(--primary);
  margin-bottom: 12px;
}

.section-header p {
  font-size: 15px;
  color: var(--text-muted);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.8;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: var(--transition);
  border: 1px solid transparent;
  cursor: pointer;
  white-space: nowrap;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  background: var(--accent);
  color: #1B3A32;
  box-shadow: 0 2px 8px rgba(211, 167, 101, 0.3);
}

.btn-primary:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 16px rgba(211, 167, 101, 0.4);
}

.btn-outline {
  border-color: rgba(234, 243, 239, 0.6);
  color: var(--text-light);
  background: transparent;
}

.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.btn-dark {
  background: var(--primary);
  color: var(--text-light);
}

.btn-dark:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
}

.badge {
  display: inline-block;
  padding: 4px 14px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 500;
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: var(--bg-white);
}

/* ===== Header Navigation ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: rgba(27, 58, 50, 0.88);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(211, 167, 101, 0.18);
  height: var(--header-h);
  transition: var(--transition);
}

.nav-desktop {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  gap: 20px;
}

.nav-left, .nav-right {
  display: flex;
  align-items: center;
  gap: clamp(12px, 2vw, 24px);
  flex: 1;
}

.nav-right {
  justify-content: flex-end;
}

.nav-left {
  justify-content: flex-start;
}

.nav-item {
  font-size: 14px;
  font-weight: 500;
  color: rgba(234, 243, 239, 0.85);
  padding: 8px 4px;
  position: relative;
  letter-spacing: 0.02em;
}

.nav-item::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--accent);
  transition: width 0.3s ease;
}

.nav-item:hover {
  color: var(--text-light);
}

.nav-item:hover::after {
  width: 100%;
}

.nav-item.active {
  color: var(--accent);
}

.nav-item.active::after {
  width: 100%;
}

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

.logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: var(--primary);
  border: 1.5px solid var(--accent);
  border-radius: 10px;
  color: var(--accent);
  font-size: 20px;
  font-weight: 700;
  font-family: "STKaiti", "KaiTi", var(--font-main);
  line-height: 1;
  box-shadow: 0 0 12px rgba(211, 167, 101, 0.15);
}

.logo-text {
  font-size: 18px;
  font-weight: 700;
  color: var(--text-light);
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.nav-cta {
  padding: 8px 20px;
  background: var(--accent);
  color: var(--primary);
  border-radius: 999px;
  font-size: 13px;
  font-weight: 600;
  transition: var(--transition);
}

.nav-cta:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 12px rgba(211, 167, 101, 0.3);
}

.nav-mobile-toggle,
.nav-mobile-call {
  display: none;
  background: none;
  border: none;
  color: var(--text-light);
  padding: 8px;
  font-size: 20px;
  cursor: pointer;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
}

.nav-mobile-toggle:hover,
.nav-mobile-call:hover {
  background: rgba(255,255,255,0.08);
}

.mobile-menu-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(27, 58, 50, 0.98);
  z-index: 2000;
  padding: 24px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}

.mobile-menu-overlay.open {
  display: flex;
}

.mobile-menu-close {
  position: absolute;
  top: 20px;
  right: 20px;
  background: none;
  border: none;
  color: var(--text-light);
  font-size: 28px;
  cursor: pointer;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
}

.mobile-menu-close:hover {
  background: rgba(255,255,255,0.08);
}

.mobile-menu-overlay a.mobile-link {
  font-size: 24px;
  font-weight: 600;
  color: var(--text-light);
  padding: 12px 0;
  letter-spacing: 0.04em;
}

.mobile-menu-overlay a.mobile-link:hover {
  color: var(--accent);
}

.mobile-menu-overlay .mobile-cta {
  margin-top: 16px;
  padding: 14px 44px;
  background: var(--accent);
  color: var(--primary);
  border-radius: 999px;
  font-size: 17px;
  font-weight: 600;
}

/* ===== Hero ===== */
.hero {
  min-height: 80vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #132A24 0%, #1B3A32 55%, #20483D 100%);
  background-image: url('/assets/images/backpic/back-1.webp');
  background-size: cover;
  background-position: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(27, 58, 50, 0.78);
  backdrop-filter: blur(2px);
}

.hero::after {
  content: '';
  position: absolute;
  top: 20%;
  right: -120px;
  width: 320px;
  height: 320px;
  background: radial-gradient(circle, rgba(211, 167, 101, 0.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero .container {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: center;
  padding-top: 120px;
  padding-bottom: 80px;
}

.hero-content {
  color: var(--text-light);
}

.hero-content h1 {
  font-size: clamp(30px, 5vw, 48px);
  font-weight: 700;
  line-height: 1.25;
  margin-bottom: 20px;
  color: var(--text-light);
  letter-spacing: 0.02em;
}

.hero-sub {
  font-size: 16px;
  line-height: 1.8;
  color: rgba(234, 243, 239, 0.8);
  margin-bottom: 28px;
  max-width: 420px;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  margin-bottom: 32px;
  flex-wrap: wrap;
}

.hero-meta {
  font-size: 13px;
  color: rgba(234, 243, 239, 0.6);
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-meta svg {
  width: 14px;
  height: 14px;
}

.hero-stats-wrap {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-xl);
  padding: 24px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.2);
}

.hero-stats-title {
  font-size: 14px;
  font-weight: 600;
  color: rgba(234, 243, 239, 0.75);
  margin-bottom: 16px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-stats-title svg {
  width: 16px;
  height: 16px;
  color: var(--accent);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.stat-card {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 20px 16px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.stat-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.4;
}

.stat-card:hover {
  transform: translateY(-4px);
  border-color: rgba(211, 167, 101, 0.3);
  box-shadow: 0 8px 20px rgba(0,0,0,0.18);
}

.stat-num {
  font-size: 30px;
  font-weight: 700;
  color: var(--accent);
  font-variant-numeric: tabular-nums;
  line-height: 1.2;
  margin-bottom: 4px;
}

.stat-num small {
  font-size: 15px;
  font-weight: 500;
  color: rgba(234,243,239,0.6);
  margin-left: 2px;
}

.stat-label {
  font-size: 13px;
  color: rgba(234, 243, 239, 0.65);
  line-height: 1.4;
}

.stat-trend {
  position: absolute;
  top: 14px;
  right: 12px;
  display: inline-flex;
  align-items: center;
  gap: 2px;
  font-size: 11px;
  color: var(--accent);
}

.stat-trend svg {
  width: 10px;
  height: 10px;
}

.scroll-hint {
  position: absolute;
  bottom: 28px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(234,243,239,0.4);
  z-index: 3;
  animation: scrollBounce 2s infinite;
}

.scroll-hint svg {
  width: 24px;
  height: 24px;
  display: block;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(6px); }
}

/* ===== Services ===== */
.services {
  background: var(--bg-warm);
  padding: 80px 0;
}

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

.service-card {
  background: var(--bg-white);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(211, 167, 101, 0.5);
}

.service-img {
  height: 160px;
  overflow: hidden;
  position: relative;
}

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

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

.service-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(27,58,50,0.25) 0%, transparent 55%);
}

.service-body {
  padding: 20px;
}

.service-body h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-dark);
}

.service-body p {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.7;
  margin-bottom: 14px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.service-tags .tag {
  font-size: 12px;
  color: var(--primary);
  background: rgba(211, 167, 101, 0.12);
  border: 1px solid rgba(211, 167, 101, 0.3);
  border-radius: 999px;
  padding: 3px 12px;
}

/* ===== Comparison ===== */
.comparison {
  padding: 80px 0;
  background: linear-gradient(135deg, #132A24 0%, #1B3A32 100%);
  background-image: url('/assets/images/backpic/back-2.webp');
  background-size: cover;
  background-position: center;
  background-attachment: fixed;
  position: relative;
}

.comparison::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(27, 58, 50, 0.88);
}

.comparison .container {
  position: relative;
  z-index: 2;
}

.comparison .section-header h2 {
  color: var(--text-light);
}

.comparison .section-header p {
  color: rgba(234, 243, 239, 0.7);
}

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

.compare-card {
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}

.compare-card:hover {
  transform: translateY(-4px);
  border-color: rgba(211, 167, 101, 0.4);
  box-shadow: 0 12px 32px rgba(0,0,0,0.25);
}

.compare-card.featured {
  border: 1.5px solid var(--accent);
  background: rgba(211, 167, 101, 0.08);
  transform: scale(1.02);
  box-shadow: 0 12px 32px rgba(0,0,0,0.2);
}

.compare-card.featured:hover {
  transform: scale(1.02) translateY(-4px);
}

.compare-card-header {
  text-align: center;
  padding-bottom: 20px;
  border-bottom: 1px solid rgba(255,255,255,0.12);
  margin-bottom: 20px;
}

.compare-card-header .plan-name {
  font-size: 22px;
  font-weight: 700;
  color: var(--text-light);
  margin-bottom: 6px;
}

.compare-card-header .plan-scene {
  font-size: 13px;
  color: rgba(234,243,239,0.6);
  margin-bottom: 12px;
}

.compare-card-header .plan-price {
  font-size: 20px;
  font-weight: 700;
  color: var(--accent);
}

.compare-card-header .plan-price small {
  font-size: 13px;
  font-weight: 400;
  color: rgba(234,243,239,0.6);
}

.compare-list {
  list-style: none;
  flex: 1;
  margin-bottom: 20px;
}

.compare-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 8px 0;
  font-size: 14px;
  color: rgba(234,243,239,0.8);
  line-height: 1.5;
}

.compare-list li svg {
  flex-shrink: 0;
  width: 16px;
  height: 16px;
}

.compare-list li .yes {
  color: var(--accent);
}

.compare-list li .no {
  color: rgba(234,243,239,0.3);
}

.compare-card .btn {
  width: 100%;
}

/* ===== Topics ===== */
.topics {
  background: var(--bg-warm);
  padding: 80px 0;
}

.topics-wrap {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
}

.topic-list {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 24px;
  border: 1px solid var(--border);
}

.topic-list-title {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 1px solid var(--border);
}

.topic-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 14px 0;
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
  gap: 16px;
}

.topic-item:last-child {
  border-bottom: none;
}

.topic-item a {
  font-size: 15px;
  color: var(--text-dark);
  font-weight: 500;
  line-height: 1.5;
}

.topic-item a:hover {
  color: var(--accent-dark);
}

.topic-date {
  font-size: 12px;
  color: var(--text-muted);
  white-space: nowrap;
}

.topic-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.topic-tags {
  background: var(--bg-white);
  border-radius: var(--radius);
  padding: 20px;
  border: 1px solid var(--border);
}

.topic-tags h3 {
  font-size: 16px;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 12px;
}

.tags-cloud {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tags-cloud a {
  display: inline-block;
  padding: 5px 14px;
  border-radius: 999px;
  font-size: 13px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: var(--transition);
}

.tags-cloud a:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--primary);
}

.topic-recommend {
  background: var(--primary);
  border-radius: var(--radius);
  padding: 20px;
  color: var(--text-light);
}

.topic-recommend h3 {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--accent);
}

.topic-recommend p {
  font-size: 14px;
  color: rgba(234,243,239,0.7);
  line-height: 1.6;
}

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

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

.accordion-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  margin-bottom: 12px;
  overflow: hidden;
  background: var(--bg-white);
  transition: var(--transition);
}

.accordion-item.open {
  border-color: rgba(211, 167, 101, 0.5);
  box-shadow: var(--shadow-sm);
}

.accordion-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 18px 20px;
  cursor: pointer;
  font-size: 16px;
  font-weight: 500;
  color: var(--text-dark);
  gap: 12px;
  transition: var(--transition);
}

.accordion-header:hover {
  background: rgba(247, 244, 239, 0.6);
}

.accordion-header .icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--text-muted);
  transition: transform 0.3s ease;
}

.accordion-item.open .accordion-header .icon {
  transform: rotate(45deg);
  color: var(--accent-dark);
}

.accordion-body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.3s ease;
}

.accordion-body-inner {
  padding: 0 20px 18px;
  font-size: 15px;
  color: var(--text-muted);
  line-height: 1.8;
  border-top: 1px solid var(--border);
  padding-top: 12px;
}

/* ===== Contact ===== */
.contact {
  background: linear-gradient(135deg, #132A24, #1B3A32);
  padding: 80px 0;
}

.contact .container {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 48px;
}

.contact-info {
  color: var(--text-light);
}

.contact-info h2 {
  font-size: clamp(24px, 3.5vw, 36px);
  font-weight: 700;
  margin-bottom: 20px;
  line-height: 1.3;
}

.contact-info p {
  font-size: 15px;
  color: rgba(234, 243, 239, 0.75);
  line-height: 1.8;
  margin-bottom: 28px;
}

.contact-detail-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.contact-detail-list li {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  font-size: 14px;
  color: rgba(234, 243, 239, 0.8);
}

.contact-detail-list li svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--accent);
  margin-top: 2px;
}

.form-card {
  background: var(--bg-white);
  border-radius: var(--radius-lg);
  padding: 32px;
  box-shadow: 0 16px 40px rgba(0,0,0,0.2);
}

.form-group {
  margin-bottom: 18px;
}

.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--text-dark);
  margin-bottom: 6px;
}

.form-group label .required {
  color: #C0392B;
  margin-left: 2px;
}

.form-control {
  width: 100%;
  height: 46px;
  padding: 0 16px;
  border: 1.5px solid var(--border);
  border-radius: 10px;
  font-size: 15px;
  color: var(--text-dark);
  background: var(--bg-warm);
  transition: var(--transition);
  outline: none;
}

.form-control:focus {
  border-color: var(--accent);
  outline: 2px solid #D3A765;
  outline-offset: 2px;
  background: #fff;
}

.form-control::placeholder {
  color: #9AA7A3;
}

textarea.form-control {
  height: auto;
  min-height: 90px;
  padding: 12px 16px;
  resize: vertical;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

.submit-btn {
  width: 100%;
  height: 48px;
  background: var(--accent);
  color: var(--primary);
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  letter-spacing: 0.04em;
  transition: var(--transition);
  cursor: pointer;
}

.submit-btn:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 4px 14px rgba(211, 167, 101, 0.35);
}

.privacy-note {
  font-size: 12px;
  color: var(--text-muted);
  text-align: center;
  margin-top: 12px;
  line-height: 1.5;
}

/* ===== CTA Bar ===== */
.cta-bar {
  background: var(--accent);
  padding: 40px 0;
}

.cta-bar .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

.cta-bar h3 {
  font-size: clamp(20px, 3vw, 28px);
  font-weight: 700;
  color: var(--primary);
  margin-bottom: 6px;
}

.cta-bar p {
  font-size: 15px;
  color: rgba(27, 58, 50, 0.75);
}

.cta-bar .btn {
  background: var(--primary);
  color: var(--text-light);
  padding: 14px 36px;
  border-radius: 999px;
  font-size: 16px;
}

.cta-bar .btn:hover {
  background: var(--primary-light);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(27, 58, 50, 0.3);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary-dark);
  padding-top: 60px;
  color: rgba(234, 243, 239, 0.8);
}

.footer-top {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px 48px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 40px;
}

.footer-brand .logo-wrap {
  margin-bottom: 16px;
}

.footer-brand p {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(234, 243, 239, 0.6);
  margin-bottom: 16px;
  max-width: 280px;
}

.footer-col h4 {
  font-size: 16px;
  font-weight: 600;
  color: var(--text-light);
  margin-bottom: 16px;
}

.footer-col ul {
  list-style: none;
}

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

.footer-col ul li a {
  font-size: 14px;
  color: rgba(234, 243, 239, 0.65);
  transition: var(--transition);
}

.footer-col ul li a:hover {
  color: var(--accent);
  padding-left: 4px;
}

.footer-contact li {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  font-size: 14px;
  color: rgba(234, 243, 239, 0.65);
  line-height: 1.6;
}

.footer-contact li svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  color: var(--accent);
  margin-top: 3px;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 20px 0;
  text-align: center;
  font-size: 13px;
  color: rgba(234, 243, 239, 0.4);
}

.footer-bottom .container {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 12px;
}

.social-links {
  display: flex;
  gap: 12px;
  margin-top: 12px;
}

.social-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(234,243,239,0.7);
  transition: var(--transition);
}

.social-links a:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

.social-links a svg {
  width: 16px;
  height: 16px;
}

/* ===== Animations ===== */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-in {
  opacity: 0;
  animation: fadeInUp 0.6s ease forwards;
}

.delay-1 { animation-delay: 0.1s; }
.delay-2 { animation-delay: 0.2s; }
.delay-3 { animation-delay: 0.3s; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html {
    scroll-behavior: auto;
  }
}

/* ===== Responsive ===== */
@media (max-width: 1023px) {
  .nav-left, .nav-right {
    gap: 14px;
  }
  .nav-item {
    font-size: 13px;
  }
  .logo-text {
    font-size: 16px;
  }
  .hero .container {
    grid-template-columns: 1fr;
    gap: 40px;
    padding-top: 110px;
    padding-bottom: 80px;
  }
  .services-grid {
    grid-template-columns: repeat(3, 1fr);
  }
  .compare-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .compare-card.featured {
    order: -1;
    grid-column: 1 / -1;
    transform: none;
  }
  .compare-card.featured:hover {
    transform: translateY(-4px);
  }
  .contact .container {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .footer-top {
    grid-template-columns: 1fr 1fr;
  }
  .topics-wrap {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 767px) {
  .section-pad {
    padding: 48px 0;
  }
  .nav-desktop {
    display: none;
  }
  .nav-mobile-toggle {
    display: inline-flex;
  }
  .nav-mobile-call {
    display: inline-flex;
  }
  .site-header .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--header-h);
    padding: 0 16px;
  }
  .mobile-header-left {
    display: flex;
    align-items: center;
  }
  .mobile-header-right {
    display: flex;
    align-items: center;
    gap: 8px;
  }
  .hero {
    min-height: auto;
    padding-top: 80px;
  }
  .hero .container {
    grid-template-columns: 1fr;
    gap: 32px;
    padding-top: 60px;
    padding-bottom: 60px;
  }
  .hero-content h1 {
    font-size: 28px;
    line-height: 1.3;
  }
  .hero-buttons {
    flex-direction: column;
  }
  .hero-buttons .btn {
    width: 100%;
  }
  .stats-grid {
    gap: 12px;
  }
  .stat-card {
    padding: 16px 12px;
  }
  .stat-num {
    font-size: 24px;
  }
  .icon-text {
    font-size: 14px;
  }
  .services-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .service-img {
    height: 180px;
  }
  .compare-grid {
    grid-template-columns: 1fr;
  }
  .compare-card.featured {
    grid-column: auto;
  }
  .form-row {
    grid-template-columns: 1fr;
  }
  .form-card {
    padding: 20px;
  }
  .footer-top {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .footer-bottom .container {
    flex-direction: column;
    gap: 6px;
  }
  .cta-bar .container {
    flex-direction: column;
    text-align: center;
    justify-content: center;
  }
  .cta-bar .btn {
    width: 100%;
    max-width: 280px;
  }
  .section-header {
    margin-bottom: 32px;
  }
}

/* Mobile header layout overrides */
.mobile-header {
  display: none;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  padding: 0 16px;
  max-width: var(--container);
  margin: 0 auto;
}

@media (max-width: 767px) {
  .mobile-header {
    display: flex;
  }
}

:root {
  --primary: #1B3A32;
  --primary-dark: #122820;
  --primary-light: #2A5448;
  --accent: #D3A765;
  --accent-dark: #B89050;
  --bg-warm: #F7F4EF;
  --text-main: #262624;
  --text-sub: #6B7B77;
  --text-on-dark: #EAF3EF;
  --border: #E3DCCF;
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 6px 16px rgba(0,0,0,0.08);
  --shadow-lg: 0 10px 24px rgba(0,0,0,0.1);
  --font-family: "PingFang SC","Noto Sans SC","Microsoft YaHei",sans-serif;
  --container: 1200px;
}
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth}
body{font-family:var(--font-family);background:var(--bg-warm);color:var(--text-main);line-height:1.7;font-size:15px;-webkit-font-smoothing:antialiased;padding-top:68px}
img{max-width:100%;display:block}
a{color:inherit;text-decoration:none}
button{font-family:inherit;cursor:pointer}
ul,ol{list-style:none}
.container{max-width:var(--container);margin:0 auto;padding:0 24px}
.section{padding:80px 0}
.section-head{margin-bottom:40px}
.section-head.center{text-align:center}
.section-head h2{font-size:clamp(24px,3.5vw,36px);font-weight:700;color:var(--text-main);line-height:1.3}
.section-head p{font-size:15px;color:var(--text-sub);margin-top:8px;max-width:640px}
.section-head.center p{margin-left:auto;margin-right:auto}

/* Header */
.site-header{position:fixed;top:0;left:0;right:0;height:68px;background:rgba(27,58,50,0.9);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border-bottom:1px solid rgba(211,167,101,0.25);z-index:100}
.nav-desktop{max-width:var(--container);height:100%;margin:0 auto;padding:0 24px;display:flex;align-items:center;justify-content:space-between;position:relative}
.nav-left,.nav-right{display:flex;align-items:center;gap:28px;flex:1}
.nav-right{justify-content:flex-end}
.site-header .logo-wrap{display:flex;align-items:center;gap:8px;position:absolute;left:50%;transform:translateX(-50%)}
.logo-mark{width:34px;height:34px;background:var(--accent);color:#fff;border-radius:8px;display:flex;align-items:center;justify-content:center;font-size:18px;font-weight:700;flex-shrink:0}
.logo-text{color:var(--text-on-dark);font-size:18px;font-weight:700;letter-spacing:1px;white-space:nowrap}
.nav-item{color:rgba(234,243,239,0.75);font-size:14px;font-weight:500;position:relative;transition:color 0.2s}
.nav-item::after{content:'';position:absolute;left:0;bottom:-4px;width:0;height:2px;background:var(--accent);transition:width 0.25s}
.nav-item:hover{color:var(--text-on-dark)}
.nav-item:hover::after{width:100%}
.nav-item.active{color:var(--accent)}
.nav-item.active::after{width:100%}
.nav-cta{display:inline-flex;align-items:center;justify-content:center;background:var(--accent);color:var(--primary);font-size:14px;font-weight:600;padding:9px 20px;border-radius:var(--radius-sm);transition:all 0.25s;white-space:nowrap}
.nav-cta:hover{background:var(--accent-dark);transform:translateY(-2px)}
.nav-cta:active{transform:scale(0.98)}
.nav-mobile{display:none}
.mobile-menu{display:none}

/* Category Hero */
.cat-hero{position:relative;padding:52px 0;background:linear-gradient(rgba(18,40,32,0.85),rgba(27,58,50,0.92)),url('/assets/images/backpic/back-2.webp') center/cover no-repeat;color:var(--text-on-dark)}
.cat-hero .container{position:relative;z-index:1;display:flex;flex-direction:column;gap:10px}
.breadcrumb{display:flex;align-items:center;gap:8px;font-size:13px;color:rgba(234,243,239,0.7);flex-wrap:wrap}
.breadcrumb a{color:rgba(234,243,239,0.7);transition:color 0.2s}
.breadcrumb a:hover{color:var(--accent)}
.breadcrumb .sep{color:rgba(234,243,239,0.4)}
.cat-hero h1{font-size:clamp(30px,5vw,44px);font-weight:700;line-height:1.2;margin:4px 0}
.cat-hero .cat-desc{font-size:15px;max-width:660px;color:rgba(234,243,239,0.8);line-height:1.7}

/* Features */
.features-section{background:#fff}
.features-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:20px}
.feature-card{background:var(--bg-warm);border:1px solid var(--border);border-radius:var(--radius-md);padding:28px 24px;transition:all 0.3s}
.feature-card:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg);border-color:rgba(211,167,101,0.5)}
.feature-icon{width:44px;height:44px;border-radius:10px;background:rgba(27,58,50,0.08);display:flex;align-items:center;justify-content:center;color:var(--primary);margin-bottom:16px}
.feature-icon svg{width:20px;height:20px}
.feature-card h3{font-size:17px;font-weight:600;margin-bottom:8px;color:var(--text-main)}
.feature-card p{font-size:14px;color:var(--text-sub);line-height:1.6}

/* Scene */
.scene-section{background:var(--bg-warm)}
.scene-grid{display:grid;grid-template-columns:1fr 1fr;gap:44px;align-items:center}
.scene-media{border-radius:var(--radius-lg);overflow:hidden;box-shadow:var(--shadow-md)}
.scene-media img{width:100%;height:340px;object-fit:cover}
.scene-list{display:flex;flex-direction:column;gap:22px}
.scene-item{display:flex;gap:16px;background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);padding:20px;transition:all 0.25s}
.scene-item:hover{border-color:rgba(211,167,101,0.5);box-shadow:var(--shadow-sm)}
.scene-item svg{width:20px;height:20px;color:var(--accent-dark);flex-shrink:0;margin-top:3px}
.scene-item h3{font-size:16px;font-weight:600;margin-bottom:4px}
.scene-item p{font-size:14px;color:var(--text-sub);line-height:1.6}

/* Service Layout */
.services-section{background:#fff}
.service-layout{display:grid;grid-template-columns:1fr 340px;gap:40px;align-items:start}
.service-cards{display:flex;flex-direction:column;gap:20px}
.service-card{display:flex;gap:20px;background:var(--bg-warm);border:1px solid var(--border);border-radius:var(--radius-md);padding:16px;transition:all 0.3s}
.service-card:hover{box-shadow:var(--shadow-md);transform:translateY(-2px);border-color:rgba(211,167,101,0.5)}
.service-thumb{width:120px;height:80px;border-radius:var(--radius-sm);overflow:hidden;flex-shrink:0}
.service-thumb img{width:100%;height:100%;object-fit:cover}
.service-body{flex:1;display:flex;flex-direction:column;gap:6px}
.service-body h3{font-size:17px;font-weight:600;color:var(--text-main)}
.service-body p{font-size:14px;color:var(--text-sub);line-height:1.6}
.service-tags{display:flex;gap:8px;flex-wrap:wrap;margin-top:4px}
.tag{display:inline-flex;align-items:center;padding:4px 12px;background:rgba(27,58,50,0.06);color:var(--primary);font-size:12px;border-radius:999px;border:1px solid rgba(27,58,50,0.12);transition:all 0.2s}
.tag:hover{background:var(--accent);color:#fff;border-color:var(--accent)}

/* Pagination */
.pagination{display:flex;justify-content:center;align-items:center;gap:8px;margin-top:32px}
.page-link{display:inline-flex;align-items:center;justify-content:center;min-width:40px;height:40px;padding:0 14px;background:var(--bg-warm);border:1px solid var(--border);border-radius:var(--radius-sm);font-size:14px;font-weight:500;color:var(--text-main);transition:all 0.2s}
.page-link:hover{border-color:var(--accent);color:var(--accent-dark)}
.page-link.active{background:var(--primary);color:var(--text-on-dark);border-color:var(--primary)}
.page-link.disabled{opacity:0.45;pointer-events:none}

/* Sidebar */
.sidebar{display:flex;flex-direction:column;gap:24px;position:sticky;top:88px}
.side-card{background:var(--bg-warm);border:1px solid var(--border);border-radius:var(--radius-md);padding:24px}
.side-card h4{font-size:16px;font-weight:600;margin-bottom:16px;padding-bottom:12px;border-bottom:1px solid var(--border);color:var(--text-main)}
.recommend-item .rec-thumb{border-radius:var(--radius-sm);overflow:hidden;margin-bottom:12px}
.recommend-item .rec-thumb img{width:100%;height:140px;object-fit:cover}
.recommend-item h5{font-size:15px;font-weight:600;margin-bottom:6px}
.recommend-item p{font-size:13px;color:var(--text-sub);line-height:1.6}
.tag-cloud{display:flex;flex-wrap:wrap;gap:8px}
.tag-cloud .tag{background:transparent;border:1px solid var(--border);color:var(--text-sub);font-size:12px;padding:5px 13px;border-radius:999px;transition:all 0.2s}
.tag-cloud .tag:hover{background:var(--accent);border-color:var(--accent);color:#fff}
.contact-info-list{display:flex;flex-direction:column;gap:14px}
.contact-info-list li{display:flex;align-items:flex-start;gap:12px;font-size:14px;color:var(--text-main);line-height:1.5}
.contact-info-list svg{width:18px;height:18px;color:var(--accent-dark);flex-shrink:0;margin-top:2px}

/* Process */
.process-section{background:var(--bg-warm)}
.process-steps{display:grid;grid-template-columns:repeat(4,1fr);gap:24px}
.step-item{background:#fff;border:1px solid var(--border);border-radius:var(--radius-md);padding:32px 24px 28px;text-align:center;position:relative;transition:all 0.3s}
.step-item:hover{transform:translateY(-4px);box-shadow:var(--shadow-lg)}
.step-num{width:40px;height:40px;border-radius:50%;background:var(--primary);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:16px;margin:0 auto 14px;font-variant-numeric:tabular-nums}
.step-item h3{font-size:16px;font-weight:600;margin-bottom:6px}
.step-item p{font-size:13px;color:var(--text-sub);line-height:1.6}

/* FAQ */
.faq-section{background:#fff}
.faq-list{display:flex;flex-direction:column;gap:12px;max-width:860px;margin:0 auto}
.faq-item{background:var(--bg-warm);border:1px solid var(--border);border-radius:var(--radius-md);overflow:hidden;transition:box-shadow 0.25s}
.faq-item.open{box-shadow:var(--shadow-md);border-color:rgba(211,167,101,0.5)}
.faq-q{display:flex;justify-content:space-between;align-items:center;width:100%;padding:20px 24px;background:none;border:none;font-size:16px;font-weight:600;color:var(--text-main);text-align:left;line-height:1.5}
.faq-q .icon{width:20px;height:20px;flex-shrink:0;transition:transform 0.3s;color:var(--accent-dark)}
.faq-item.open .faq-q .icon{transform:rotate(45deg)}
.faq-a{max-height:0;overflow:hidden;transition:max-height 0.3s ease}
.faq-a-inner{padding:0 24px 20px;font-size:14px;color:var(--text-sub);line-height:1.8}
.faq-item.open .faq-a{max-height:320px}

/* CTA */
.cta-section{padding:56px 0;background:var(--bg-warm)}
.cta-band{background:var(--primary);border-radius:var(--radius-lg);padding:44px 48px;display:flex;align-items:center;justify-content:space-between;gap:24px;box-shadow:var(--shadow-md)}
.cta-band h3{color:var(--text-on-dark);font-size:22px;font-weight:600;line-height:1.4}
.cta-band p{color:rgba(234,243,239,0.7);font-size:14px;margin-top:6px}
.cta-btn{display:inline-flex;align-items:center;justify-content:center;padding:13px 32px;background:var(--accent);color:var(--primary);border-radius:var(--radius-sm);font-weight:700;font-size:15px;transition:all 0.25s;white-space:nowrap}
.cta-btn:hover{background:var(--accent-dark);transform:translateY(-2px)}
.cta-btn:active{transform:scale(0.98)}

/* Footer */
.site-footer{background:var(--primary-dark);color:rgba(234,243,239,0.7);margin-top:0;padding-top:64px}
.footer-top{max-width:var(--container);margin:0 auto;padding:0 24px 44px;display:grid;grid-template-columns:1.6fr 1fr 1fr 1.4fr;gap:44px}
.footer-brand .logo-wrap{display:flex;align-items:center;gap:8px;margin-bottom:16px}
.footer-brand .logo-text{font-size:18px;font-weight:700;color:var(--text-on-dark)}
.footer-brand p{font-size:14px;line-height:1.8;color:rgba(234,243,239,0.6)}
.social-links{display:flex;gap:12px;margin-top:18px}
.social-links a{width:36px;height:36px;border-radius:var(--radius-sm);background:rgba(255,255,255,0.08);display:flex;align-items:center;justify-content:center;color:rgba(234,243,239,0.8);transition:all 0.2s}
.social-links a:hover{background:var(--accent);color:var(--primary)}
.social-links svg{width:16px;height:16px}
.footer-col h4{color:var(--text-on-dark);font-size:15px;font-weight:600;margin-bottom:16px}
.footer-col ul{display:flex;flex-direction:column;gap:10px}
.footer-col a{font-size:14px;transition:color 0.2s;color:rgba(234,243,239,0.6)}
.footer-col a:hover{color:var(--accent)}
.footer-contact li{display:flex;align-items:flex-start;gap:10px;font-size:14px;line-height:1.6;color:rgba(234,243,239,0.6)}
.footer-contact svg{width:16px;height:16px;flex-shrink:0;margin-top:3px;color:var(--accent)}
.footer-bottom{border-top:1px solid rgba(255,255,255,0.08);padding:20px 0}
.footer-bottom-inner{max-width:var(--container);margin:0 auto;padding:0 24px;display:flex;justify-content:space-between;font-size:13px;color:rgba(234,243,239,0.4);flex-wrap:wrap;gap:8px}

/* Mobile menu */
.nav-mobile{display:none}
.mobile-menu{display:none}

@media (max-width:1023px){
  .features-grid{grid-template-columns:repeat(2,1fr)}
  .process-steps{grid-template-columns:repeat(2,1fr)}
  .service-layout{grid-template-columns:1fr}
  .sidebar{position:static}
  .scene-grid{grid-template-columns:1fr}
  .scene-media img{height:260px}
  .footer-top{grid-template-columns:1fr 1fr;gap:32px}
  .cta-band{flex-direction:column;text-align:center;padding:36px 28px}
}

@media (max-width:767px){
  .section{padding:48px 0}
  .section-head{margin-bottom:28px}
  body{padding-top:68px}
  .nav-desktop{display:none}
  .nav-mobile{display:flex;align-items:center;height:100%;padding:0 16px;justify-content:space-between;position:relative}
  .nav-mobile .logo-wrap{position:static;transform:none}
  .nav-mobile .logo-text{font-size:16px}
  .menu-toggle,.phone-toggle{background:none;border:none;color:var(--text-on-dark);width:40px;height:40px;display:flex;align-items:center;justify-content:center;padding:0}
  .menu-toggle svg,.phone-toggle svg{width:22px;height:22px}
  .mobile-menu{position:fixed;top:0;left:0;right:0;bottom:0;background:rgba(18,40,32,0.98);z-index:200;display:flex;flex-direction:column;align-items:center;justify-content:center;opacity:0;visibility:hidden;transition:opacity 0.3s,visibility 0.3s}
  .mobile-menu.open{opacity:1;visibility:visible}
  .mobile-menu nav{display:flex;flex-direction:column;gap:28px;text-align:center}
  .mobile-menu nav a{font-size:22px;color:var(--text-on-dark);font-weight:600;line-height:1.4}
  .mobile-menu nav a.active{color:var(--accent)}
  .mobile-menu nav .nav-cta{margin-top:8px;color:var(--primary)}
  .menu-close{position:absolute;top:20px;right:20px;background:none;border:none;color:var(--text-on-dark);font-size:36px;line-height:1;width:44px;height:44px;padding:0}
  .features-grid{grid-template-columns:1fr}
  .process-steps{grid-template-columns:1fr}
  .service-card{flex-direction:column}
  .service-thumb{width:100%;height:160px}
  .cat-hero{padding:40px 0}
  .cat-hero h1{font-size:28px}
  .cat-hero .cat-desc{font-size:14px}
  .footer-top{grid-template-columns:1fr;gap:24px}
  .footer-bottom-inner{flex-direction:column;align-items:center;text-align:center}
  .cta-band{padding:28px 20px}
  .cta-band h3{font-size:19px}
}

@media (prefers-reduced-motion:reduce){
  *,*::before,*::after{animation-duration:0.01ms !important;transition-duration:0.01ms !important}
}