/* roulang page: index */
:root {
  --primary: #1a4d3e;
  --primary-dark: #123628;
  --primary-light: #2d6a4f;
  --accent: #c9a063;
  --accent-light: #e0bc84;
  --accent-dark: #a8813f;
  --bg: #faf8f5;
  --bg-alt: #f1ede6;
  --bg-white: #ffffff;
  --text: #22301f;
  --text-light: #5c6b5a;
  --text-muted: #8a948a;
  --border: #e4ded4;
  --border-light: #efe9e0;
  --shadow-sm: 0 2px 8px rgba(26, 45, 32, 0.06);
  --shadow-md: 0 8px 24px rgba(26, 45, 32, 0.08);
  --shadow-lg: 0 16px 40px rgba(26, 45, 32, 0.12);
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-full: 999px;
  --transition: 0.25s cubic-bezier(0.25, 0.72, 0.37, 1);
  --container: 1200px;
  --font-sans: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", "Noto Sans SC", Arial, sans-serif;
  --font-serif: "Songti SC", "STSong", "Noto Serif SC", Georgia, serif;
}

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

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
}

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

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

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

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

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

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

/* ===== Header / Nav ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 248, 245, 0.92);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border-light);
  transition: box-shadow var(--transition);
}

.site-header.scrolled {
  box-shadow: var(--shadow-md);
}

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}

.logo {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: var(--primary);
  letter-spacing: 1px;
  white-space: nowrap;
  position: relative;
  padding-bottom: 4px;
}

.logo::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 32px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 36px;
  list-style: none;
}

.nav-links a {
  font-size: 15px;
  color: var(--text-light);
  font-weight: 500;
  padding: 8px 0;
  position: relative;
  letter-spacing: 0.3px;
}

.nav-links a::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 2px;
  background: var(--primary);
  border-radius: 2px;
  transition: width var(--transition);
}

.nav-links a:hover {
  color: var(--primary);
}

.nav-links a:hover::after,
.nav-links a.active::after {
  width: 20px;
}

.nav-links a.active {
  color: var(--primary);
  font-weight: 600;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: var(--radius-full);
  transition: background var(--transition), transform var(--transition), box-shadow var(--transition);
  white-space: nowrap;
}

.nav-cta:hover {
  background: var(--primary-light);
  transform: translateY(-1px);
  box-shadow: 0 6px 20px rgba(26, 77, 62, 0.25);
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  font-size: 22px;
  color: var(--primary);
  transition: background var(--transition);
}

.menu-toggle:hover {
  background: var(--bg-alt);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  padding: 120px 0 140px;
  background: linear-gradient(135deg, rgba(18, 54, 40, 0.82), rgba(26, 77, 62, 0.72)), url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
  color: #f5f1ea;
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: radial-gradient(ellipse at center right, rgba(201, 160, 99, 0.16), transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 60px;
  align-items: center;
}

.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  letter-spacing: 2px;
  color: var(--accent-light);
  background: rgba(201, 160, 99, 0.12);
  border: 1px solid rgba(201, 160, 99, 0.3);
  padding: 6px 18px;
  border-radius: var(--radius-full);
  margin-bottom: 24px;
  font-weight: 500;
}

.hero-eyebrow i {
  font-size: 12px;
}

.hero h1 {
  font-family: var(--font-serif);
  font-size: 42px;
  line-height: 1.35;
  font-weight: 600;
  margin-bottom: 24px;
  letter-spacing: 0.5px;
}

.hero h1 .accent-text {
  color: var(--accent-light);
  font-style: normal;
}

.hero-desc {
  font-size: 16px;
  line-height: 1.9;
  color: rgba(245, 241, 234, 0.88);
  max-width: 560px;
  margin-bottom: 36px;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 40px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-size: 15px;
  font-weight: 600;
  padding: 14px 32px;
  border-radius: var(--radius-full);
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), border-color var(--transition);
  letter-spacing: 0.4px;
}

.btn:focus-visible {
  outline: 3px solid rgba(201, 160, 99, 0.5);
  outline-offset: 3px;
}

.btn-primary {
  background: var(--accent);
  color: #1d2419;
  box-shadow: 0 4px 16px rgba(201, 160, 99, 0.3);
}

.btn-primary:hover {
  background: var(--accent-light);
  transform: translateY(-2px);
  box-shadow: 0 10px 28px rgba(201, 160, 99, 0.4);
}

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

.btn-ghost {
  background: transparent;
  color: #f5f1ea;
  border: 1.5px solid rgba(245, 241, 234, 0.45);
}

.btn-ghost:hover {
  border-color: var(--accent-light);
  background: rgba(201, 160, 99, 0.1);
  color: var(--accent-light);
  transform: translateY(-2px);
}

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

.hero-data {
  display: flex;
  flex-wrap: wrap;
  gap: 28px;
  padding-top: 30px;
  border-top: 1px solid rgba(245, 241, 234, 0.16);
}

.hero-data-item {
  display: flex;
  flex-direction: column;
}

.hero-data-item strong {
  font-size: 26px;
  font-weight: 700;
  color: var(--accent-light);
  line-height: 1.2;
}

.hero-data-item span {
  font-size: 13px;
  color: rgba(245, 241, 234, 0.7);
  margin-top: 4px;
}

.hero-panel {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 32px;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

.hero-panel-title {
  font-family: var(--font-serif);
  font-size: 18px;
  color: #f5f1ea;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.hero-panel-title i {
  color: var(--accent-light);
}

.hero-panel-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.hero-panel-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  color: rgba(245, 241, 234, 0.85);
  line-height: 1.6;
}

.hero-panel-list li i {
  color: var(--accent-light);
  font-size: 12px;
  margin-top: 5px;
  font-style: normal;
}

.hero-panel-list li i::before {
  content: "◆";
}

/* ===== Section common ===== */
.section {
  padding: 96px 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section-head {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 60px;
}

.section-eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 2px;
  color: var(--accent-dark);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.section-title {
  font-family: var(--font-serif);
  font-size: 32px;
  line-height: 1.4;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 16px;
}

.section-desc {
  font-size: 15px;
  line-height: 1.85;
  color: var(--text-light);
}

/* ===== Stats / KPI ===== */
.stats-section {
  background: var(--primary-dark);
  color: #f5f1ea;
  padding: 72px 0;
  position: relative;
  overflow: hidden;
}

.stats-section::before {
  content: "";
  position: absolute;
  top: -60%;
  right: -20%;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(201, 160, 99, 0.12), transparent 70%);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 40px;
  position: relative;
  z-index: 2;
}

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

.stat-item strong {
  display: block;
  font-family: var(--font-serif);
  font-size: 36px;
  font-weight: 700;
  color: var(--accent-light);
  line-height: 1.2;
  margin-bottom: 6px;
}

.stat-item span {
  font-size: 14px;
  color: rgba(245, 241, 234, 0.75);
  letter-spacing: 1px;
}

.stat-divider {
  width: 1px;
  background: rgba(245, 241, 234, 0.15);
}

/* ===== News / Info ===== */
.news-section {
  background: var(--bg);
}

.news-layout {
  display: grid;
  grid-template-columns: 1.4fr 0.8fr;
  gap: 48px;
  align-items: start;
}

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

.news-item {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 22px 8px;
  border-bottom: 1px solid var(--border-light);
  transition: background var(--transition), padding var(--transition);
}

.news-item:first-child {
  padding-top: 8px;
}

.news-item:hover {
  background: var(--bg-white);
  padding-left: 16px;
  padding-right: 16px;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-sm);
}

.news-date {
  flex-shrink: 0;
  font-size: 12px;
  color: var(--text-muted);
  background: var(--bg-alt);
  padding: 4px 12px;
  border-radius: var(--radius-full);
  letter-spacing: 0.5px;
  white-space: nowrap;
}

.news-link {
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
  line-height: 1.6;
  flex: 1;
}

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

.news-more {
  display: inline-flex;
  align-items: center;
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 600;
  gap: 6px;
  margin-top: 24px;
  transition: gap var(--transition);
}

.news-more:hover {
  gap: 12px;
}

.news-sidebar {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 28px;
  box-shadow: var(--shadow-sm);
}

.sidebar-title {
  font-family: var(--font-serif);
  font-size: 18px;
  color: var(--primary-dark);
  margin-bottom: 16px;
  padding-bottom: 12px;
  border-bottom: 2px solid var(--accent);
  display: inline-block;
}

.sidebar-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 20px;
}

.sidebar-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 14px;
  line-height: 1.6;
  color: var(--text-light);
}

.sidebar-list li i {
  color: var(--accent);
  font-style: normal;
  font-size: 12px;
  margin-top: 6px;
}

.sidebar-list li i::before {
  content: "●";
}

.sidebar-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  border-top: 1px solid var(--border-light);
  padding-top: 20px;
}

.tag {
  display: inline-block;
  font-size: 13px;
  color: var(--text-light);
  background: var(--bg-alt);
  border: 1px solid var(--border-light);
  padding: 5px 14px;
  border-radius: var(--radius-full);
  transition: all var(--transition);
}

.tag:hover {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

/* ===== Services ===== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 36px;
  display: flex;
  gap: 24px;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: rgba(201, 160, 99, 0.4);
}

.service-icon {
  flex-shrink: 0;
  width: 56px;
  height: 56px;
  border-radius: var(--radius-md);
  background: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  color: var(--accent-light);
  transition: background var(--transition), transform var(--transition);
}

.service-card:hover .service-icon {
  background: var(--accent);
  color: var(--primary-dark);
  transform: rotate(-8deg) scale(1.05);
}

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

.service-body p {
  font-size: 14px;
  line-height: 1.75;
  color: var(--text-light);
}

.service-body .service-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-top: 14px;
}

.meta-badge {
  font-size: 12px;
  color: var(--accent-dark);
  background: rgba(201, 160, 99, 0.1);
  padding: 3px 10px;
  border-radius: var(--radius-full);
}

/* ===== Feature / Cover ===== */
.feature-section {
  background: var(--bg-white);
  position: relative;
  overflow: hidden;
}

.feature-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: center;
}

.feature-image {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-lg);
  position: relative;
}

.feature-image img {
  width: 100%;
  height: 400px;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.feature-image:hover img {
  transform: scale(1.03);
}

.feature-image::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 60%;
  background: linear-gradient(to top, rgba(18, 54, 40, 0.35), transparent);
  pointer-events: none;
}

.feature-content h2 {
  font-family: var(--font-serif);
  font-size: 30px;
  line-height: 1.4;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 20px;
}

.feature-content p {
  font-size: 15px;
  line-height: 1.9;
  color: var(--text-light);
  margin-bottom: 20px;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 14px;
  margin-bottom: 28px;
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  font-size: 15px;
  color: var(--text);
  line-height: 1.6;
}

.feature-list li span {
  flex-shrink: 0;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: rgba(201, 160, 99, 0.15);
  color: var(--accent-dark);
  font-size: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 3px;
  font-weight: 700;
}

.feature-list li span::before {
  content: "✓";
}

.feature-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary);
  font-weight: 600;
  font-size: 15px;
  border-bottom: 2px solid var(--accent);
  padding-bottom: 4px;
  transition: gap var(--transition), color var(--transition);
}

.feature-cta:hover {
  gap: 14px;
  color: var(--accent-dark);
}

/* ===== Process ===== */
.process-section {
  background: var(--bg-alt);
}

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

.process-card {
  background: var(--bg-white);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  padding: 32px 24px;
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
}

.process-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.process-num {
  position: absolute;
  top: -14px;
  left: 50%;
  transform: translateX(-50%);
  width: 28px;
  height: 28px;
  border-radius: 50%;
  background: var(--accent);
  color: #1d2419;
  font-size: 13px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 10px rgba(201, 160, 99, 0.35);
}

.process-icon {
  font-size: 34px;
  margin-bottom: 16px;
  color: var(--primary);
}

.process-card h3 {
  font-family: var(--font-serif);
  font-size: 17px;
  font-weight: 600;
  color: var(--primary-dark);
  margin-bottom: 10px;
}

.process-card p {
  font-size: 14px;
  line-height: 1.7;
  color: var(--text-light);
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-white);
}

.faq-list {
  max-width: 800px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  background: var(--bg);
  overflow: hidden;
  transition: border-color var(--transition), box-shadow var(--transition);
}

.faq-item:hover {
  border-color: rgba(201, 160, 99, 0.4);
  box-shadow: var(--shadow-sm);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 20px 24px;
  font-size: 16px;
  font-weight: 600;
  color: var(--primary-dark);
  cursor: pointer;
  text-align: left;
  transition: background var(--transition);
}

.faq-question:hover {
  background: var(--bg-alt);
}

.faq-icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: rgba(201, 160, 99, 0.15);
  color: var(--accent-dark);
  font-size: 14px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: transform var(--transition), background var(--transition);
}

.faq-item.open .faq-icon {
  transform: rotate(45deg);
  background: var(--accent);
  color: #1d2419;
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.35s ease, padding 0.35s ease;
  padding: 0 24px;
}

.faq-item.open .faq-answer {
  max-height: 500px;
  padding: 4px 24px 24px;
}

.faq-answer p {
  font-size: 14px;
  line-height: 1.9;
  color: var(--text-light);
  border-top: 1px solid var(--border-light);
  padding-top: 16px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  padding: 100px 0;
  background: linear-gradient(120deg, rgba(18, 54, 40, 0.85), rgba(26, 77, 62, 0.78)), url('/assets/images/backpic/back-2.jpg') center/cover no-repeat;
  color: #f5f1ea;
  text-align: center;
}

.cta-inner {
  max-width: 640px;
  margin: 0 auto;
}

.cta-inner h2 {
  font-family: var(--font-serif);
  font-size: 32px;
  line-height: 1.4;
  margin-bottom: 16px;
  font-weight: 600;
}

.cta-inner p {
  font-size: 15px;
  line-height: 1.9;
  color: rgba(245, 241, 234, 0.85);
  margin-bottom: 32px;
}

.cta-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 16px;
}

.cta-note {
  margin-top: 20px;
  font-size: 13px;
  color: rgba(245, 241, 234, 0.6);
}

/* ===== Footer ===== */
.site-footer {
  background: var(--primary-dark);
  color: rgba(245, 241, 234, 0.75);
  padding: 56px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 40px;
  border-bottom: 1px solid rgba(245, 241, 234, 0.1);
}

.footer-brand {
  font-family: var(--font-serif);
  font-size: 20px;
  font-weight: 600;
  color: #f5f1ea;
  margin-bottom: 12px;
}

.footer-about {
  font-size: 14px;
  line-height: 1.8;
  max-width: 320px;
  margin-bottom: 20px;
}

.footer-links-title {
  font-size: 14px;
  font-weight: 600;
  color: #f5f1ea;
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}

.footer-links {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-links a {
  font-size: 14px;
  color: rgba(245, 241, 234, 0.65);
  transition: color var(--transition), padding-left var(--transition);
}

.footer-links a:hover {
  color: var(--accent-light);
  padding-left: 5px;
}

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding: 24px 0;
  font-size: 13px;
  color: rgba(245, 241, 234, 0.45);
}

.footer-bottom a {
  color: rgba(245, 241, 234, 0.45);
}

.footer-bottom a:hover {
  color: var(--accent-light);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .hero h1 {
    font-size: 34px;
  }

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

  .hero-panel {
    max-width: 560px;
  }

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

  .stat-divider {
    display: none;
  }

  .news-layout {
    grid-template-columns: 1fr;
  }

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

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

  .feature-image img {
    height: 320px;
  }

  .process-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

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

@media (max-width: 768px) {
  .section {
    padding: 72px 0;
  }

  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--bg);
    flex-direction: column;
    align-items: flex-start;
    padding: 24px;
    gap: 8px;
    border-bottom: 1px solid var(--border-light);
    transform: translateY(-120%);
    transition: transform 0.35s ease;
    box-shadow: var(--shadow-lg);
    z-index: 99;
  }

  .nav-links.open {
    transform: translateY(0);
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    display: block;
    padding: 12px 8px;
    font-size: 16px;
    border-radius: var(--radius-sm);
  }

  .nav-links a::after {
    display: none;
  }

  .nav-links a:hover {
    background: var(--bg-alt);
  }

  .nav-links a.active {
    background: rgba(26, 77, 62, 0.08);
  }

  .nav-cta {
    display: none;
  }

  .hero {
    padding: 80px 0 100px;
  }

  .hero h1 {
    font-size: 28px;
  }

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

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 20px;
  }

  .stat-item strong {
    font-size: 30px;
  }

  .section-title {
    font-size: 26px;
  }

  .news-item {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .service-card {
    padding: 24px;
    flex-direction: column;
    gap: 16px;
  }

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

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

@media (max-width: 520px) {
  .container {
    padding: 0 18px;
  }

  .logo {
    font-size: 17px;
  }

  .hero h1 {
    font-size: 24px;
  }

  .hero-buttons {
    flex-direction: column;
    width: 100%;
  }

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

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

  .cta-buttons {
    flex-direction: column;
    width: 100%;
  }

  .cta-buttons .btn {
    width: 100%;
  }

  .feature-image img {
    height: 240px;
  }

  .faq-question {
    font-size: 15px;
    padding: 16px 18px;
  }

  .faq-answer {
    padding: 0 18px;
  }

  .faq-item.open .faq-answer {
    padding: 4px 18px 18px;
  }
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: var(--bg-alt);
}

::-webkit-scrollbar-thumb {
  background: var(--primary);
  border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--primary-light);
}

/* roulang page: category1 */
/* ===== 设计变量 ===== */
:root {
  --color-primary: #1b1b1b;
  --color-primary-light: #2d2d2d;
  --color-accent: #b8935a;
  --color-accent-light: #d4b483;
  --color-accent-dark: #8a6d3b;
  --color-bg: #fbf9f6;
  --color-bg-alt: #f2eee8;
  --color-bg-dark: #151515;
  --color-white: #ffffff;
  --color-text: #1f1f1f;
  --color-text-light: #6b6b6b;
  --color-text-lighter: #99928a;
  --color-border: #e8e2d9;
  --color-border-light: #f0ece6;
  --radius: 18px;
  --radius-sm: 12px;
  --radius-xs: 8px;
  --shadow-sm: 0 2px 12px rgba(0,0,0,0.04);
  --shadow: 0 6px 32px rgba(0,0,0,0.07);
  --shadow-lg: 0 14px 50px rgba(0,0,0,0.12);
  --transition: all 0.3s cubic-bezier(0.25, 0.1, 0.25, 1);
  --container-w: 1200px;
  --font-sans: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC", "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Arial, sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.75;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
a {
  text-decoration: none;
  color: inherit;
  transition: var(--transition);
}
button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}
ul, ol {
  list-style: none;
}
input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}
h1, h2, h3, h4, h5, h6 {
  font-weight: 600;
  line-height: 1.3;
  color: var(--color-text);
}

/* ===== 容器 ===== */
.container {
  max-width: var(--container-w);
  margin: 0 auto;
  padding: 0 32px;
}

/* ===== 头部导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(21, 21, 21, 0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  transition: var(--transition);
}
.site-header.scrolled {
  background: rgba(21, 21, 21, 0.96);
  box-shadow: 0 4px 30px rgba(0,0,0,0.18);
}
.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 24px;
}
.logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 0.5px;
  color: var(--color-white);
  white-space: nowrap;
}
.logo:hover {
  color: var(--color-accent-light);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 40px;
}
.nav-links a {
  color: rgba(255,255,255,0.75);
  font-size: 14px;
  font-weight: 400;
  letter-spacing: 0.3px;
  padding: 4px 0;
  position: relative;
  transition: var(--transition);
}
.nav-links a:hover {
  color: var(--color-white);
}
.nav-links a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 100%;
  height: 1px;
  background: var(--color-accent);
  transform: scaleX(0);
  transform-origin: left center;
  transition: transform 0.35s ease;
}
.nav-links a:hover::after {
  transform: scaleX(1);
}
.nav-links a.active {
  color: var(--color-white);
  font-weight: 500;
}
.nav-links a.active::after {
  transform: scaleX(1);
}
.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 24px;
  border: 1px solid rgba(255,255,255,0.2);
  border-radius: 999px;
  color: var(--color-white);
  font-size: 14px;
  font-weight: 500;
  transition: var(--transition);
  background: rgba(255,255,255,0.04);
  white-space: nowrap;
}
.nav-cta:hover {
  background: var(--color-accent);
  border-color: var(--color-accent);
  color: var(--color-white);
  transform: translateY(-1px);
  box-shadow: 0 4px 20px rgba(184,147,90,0.4);
}
.menu-toggle {
  display: none;
  color: var(--color-white);
  padding: 8px;
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  line-height: 0;
  transition: var(--transition);
}
.menu-toggle:hover {
  border-color: var(--color-accent);
}

/* ===== Hero 深色面板 ===== */
.hero {
  position: relative;
  padding: 168px 0 96px;
  background: var(--color-bg-dark);
  background-image: linear-gradient(rgba(15,15,18,0.86), rgba(15,15,18,0.88)), url("/assets/images/backpic/back-1.jpg");
  background-size: cover;
  background-position: center;
  color: var(--color-white);
  overflow: hidden;
}
.hero::before {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(184,147,90,0.18), transparent 65%);
  top: -120px;
  right: -80px;
  pointer-events: none;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--color-accent-light);
  text-transform: uppercase;
  margin-bottom: 24px;
  font-weight: 500;
}
.hero-eyebrow::before {
  content: "";
  width: 28px;
  height: 1px;
  background: var(--color-accent);
}
.hero h1 {
  font-size: 44px;
  font-weight: 700;
  line-height: 1.24;
  color: var(--color-white);
  margin-bottom: 20px;
  letter-spacing: -0.5px;
}
.hero-sub {
  font-size: 17px;
  line-height: 1.8;
  color: rgba(255,255,255,0.72);
  margin-bottom: 36px;
  max-width: 480px;
}
.hero-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 32px;
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  transition: var(--transition);
  letter-spacing: 0.3px;
}
.btn-primary {
  background: var(--color-accent);
  color: var(--color-white);
  border: 1px solid var(--color-accent);
}
.btn-primary:hover {
  background: var(--color-accent-light);
  border-color: var(--color-accent-light);
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(184,147,90,0.35);
}
.btn-ghost {
  background: transparent;
  color: rgba(255,255,255,0.9);
  border: 1px solid rgba(255,255,255,0.25);
}
.btn-ghost:hover {
  border-color: var(--color-white);
  background: rgba(255,255,255,0.06);
  transform: translateY(-2px);
}
.hero-panel {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.10);
  border-radius: var(--radius);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  padding: 28px;
  box-shadow: var(--shadow);
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 24px;
  padding-bottom: 16px;
  border-bottom: 1px solid rgba(255,255,255,0.10);
  font-size: 14px;
  color: rgba(255,255,255,0.85);
  font-weight: 500;
}
.panel-head-left {
  display: flex;
  align-items: center;
  gap: 8px;
}
.panel-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  display: inline-block;
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.55; transform: scale(0.85); }
}
.panel-live {
  font-size: 11px;
  background: rgba(184,147,90,0.18);
  color: var(--color-accent-light);
  padding: 3px 10px;
  border-radius: 999px;
  letter-spacing: 1px;
}
.panel-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.panel-row:last-of-type {
  border-bottom: none;
}
.panel-row span {
  color: rgba(255,255,255,0.65);
  font-size: 14px;
}
.panel-row strong {
  font-size: 22px;
  font-weight: 600;
  color: var(--color-white);
}
.panel-row strong em {
  font-style: normal;
  font-size: 13px;
  color: rgba(255,255,255,0.5);
  font-weight: 400;
  margin-left: 2px;
}
.panel-bar-wrap {
  margin-top: 20px;
  padding-top: 4px;
}
.panel-bar-label {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(255,255,255,0.6);
  margin-bottom: 8px;
}
.panel-bar {
  height: 6px;
  background: rgba(255,255,255,0.1);
  border-radius: 999px;
  overflow: hidden;
}
.panel-bar-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  width: 0;
  transition: width 1s ease;
}
.panel-bar-fill.animated {
  width: 88%;
}

/* ===== 指标看板 ===== */
.metrics-section {
  padding: 96px 0;
  background: var(--color-bg);
}
.metrics-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}
.metric-card {
  padding: 36px 32px;
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius);
  text-align: center;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.metric-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--color-accent), var(--color-accent-light));
  transform: scaleX(0);
  transform-origin: center;
  transition: transform 0.4s ease;
}
.metric-card:hover::before {
  transform: scaleX(1);
}
.metric-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow);
  border-color: var(--color-border);
}
.metric-num {
  font-size: 42px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1.2;
  margin-bottom: 8px;
}
.metric-num sup {
  font-size: 18px;
  color: var(--color-accent);
  font-weight: 600;
}
.metric-label {
  font-size: 15px;
  color: var(--color-text-light);
}

/* ===== 服务矩阵 ===== */
.services-section {
  padding: 96px 0;
  background: var(--color-bg-alt);
}
.section-head {
  max-width: 640px;
  margin-bottom: 56px;
}
.section-eyebrow {
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--color-accent-dark);
  text-transform: uppercase;
  font-weight: 500;
  margin-bottom: 12px;
  display: block;
}
.section-title {
  font-size: 36px;
  font-weight: 700;
  line-height: 1.3;
  margin-bottom: 16px;
  letter-spacing: -0.3px;
}
.section-desc {
  font-size: 16px;
  color: var(--color-text-light);
  line-height: 1.8;
}
.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 28px;
}
.service-card {
  background: var(--color-white);
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--color-border-light);
  transition: var(--transition);
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-5px);
  border-color: var(--color-border);
}
.service-cover {
  height: 220px;
  overflow: hidden;
  position: relative;
}
.service-cover img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.service-card:hover .service-cover img {
  transform: scale(1.05);
}
.service-cover::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(0,0,0,0.28), transparent 65%);
}
.service-body {
  padding: 24px 28px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.service-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--color-accent-dark);
  background: rgba(184,147,90,0.10);
  padding: 4px 12px;
  border-radius: 999px;
  font-weight: 500;
  margin-bottom: 14px;
  width: fit-content;
}
.service-title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 10px;
}
.service-desc {
  font-size: 15px;
  color: var(--color-text-light);
  line-height: 1.75;
  margin-bottom: 16px;
  flex: 1;
}
.service-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.service-list li {
  font-size: 13px;
  color: var(--color-text);
  background: var(--color-bg);
  border: 1px solid var(--color-border-light);
  padding: 4px 12px;
  border-radius: 999px;
  transition: var(--transition);
}
.service-list li:hover {
  border-color: var(--color-accent);
  background: rgba(184,147,90,0.06);
}

/* ===== 结果对比 ===== */
.compare-section {
  padding: 96px 0;
  background: var(--color-white);
}
.compare-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 48px;
}
.compare-col {
  padding: 36px;
  border-radius: var(--radius);
  transition: var(--transition);
}
.compare-col-online {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border-light);
}
.compare-col-pro {
  background: var(--color-bg-dark);
  border: 1px solid var(--color-bg-dark);
  color: var(--color-white);
  position: relative;
}
.compare-col-pro::before {
  content: "推荐";
  position: absolute;
  top: 0;
  right: 24px;
  transform: translateY(-50%);
  background: var(--color-accent);
  color: var(--color-white);
  font-size: 12px;
  font-weight: 500;
  padding: 4px 14px;
  border-radius: 999px;
}
.compare-col h3 {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 24px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.compare-col-online h3 {
  color: var(--color-text);
}
.compare-col-pro h3 {
  color: var(--color-white);
}
.compare-item {
  display: flex;
  gap: 12px;
  padding: 14px 0;
  border-bottom: 1px solid rgba(0,0,0,0.06);
  align-items: flex-start;
}
.compare-col-pro .compare-item {
  border-bottom-color: rgba(255,255,255,0.10);
}
.compare-item:last-child {
  border-bottom: none;
}
.compare-icon {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 3px;
  font-size: 11px;
}
.compare-icon.no {
  background: rgba(0,0,0,0.08);
  color: var(--color-text-light);
}
.compare-col-pro .compare-icon.no {
  background: rgba(255,255,255,0.12);
  color: rgba(255,255,255,0.6);
}
.compare-icon.yes {
  background: rgba(184,147,90,0.20);
  color: var(--color-accent-dark);
}
.compare-col-pro .compare-icon.yes {
  background: rgba(184,147,90,0.25);
  color: var(--color-accent-light);
}
.compare-item-text {
  flex: 1;
}
.compare-item-label {
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 2px;
}
.compare-item-sub {
  font-size: 13px;
  color: var(--color-text-light);
  line-height: 1.6;
}
.compare-col-pro .compare-item-sub {
  color: rgba(255,255,255,0.65);
}

/* ===== FAQ ===== */
.faq-section {
  padding: 96px 0;
  background: var(--color-bg-alt);
}
.faq-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
  margin-top: 48px;
}
.faq-item {
  background: var(--color-white);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-sm);
  padding: 28px;
  transition: var(--transition);
}
.faq-item:hover {
  box-shadow: var(--shadow);
  border-color: var(--color-border);
}
.faq-q {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: 10px;
  color: var(--color-text);
  display: flex;
  gap: 10px;
  align-items: flex-start;
}
.faq-q::before {
  content: "Q";
  font-size: 12px;
  font-weight: 700;
  color: var(--color-accent-dark);
  background: rgba(184,147,90,0.12);
  width: 22px;
  height: 22px;
  border-radius: 6px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}
.faq-a {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
  padding-left: 32px;
}
.faq-a::before {
  content: "A";
  font-size: 12px;
  font-weight: 700;
  color: var(--color-accent);
  margin-right: 8px;
}

/* ===== 转化表单 ===== */
.contact-section {
  padding: 96px 0;
  background: var(--color-bg-dark);
  background-image: linear-gradient(rgba(21,21,21,0.94), rgba(21,21,21,0.96)), url("/assets/images/backpic/back-3.jpg");
  background-size: cover;
  background-position: center;
  color: var(--color-white);
}
.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.contact-info h2 {
  color: var(--color-white);
  font-size: 36px;
  margin-bottom: 20px;
  line-height: 1.3;
}
.contact-info p {
  color: rgba(255,255,255,0.65);
  font-size: 16px;
  line-height: 1.85;
  margin-bottom: 28px;
}
.contact-list {
  margin-top: 24px;
}
.contact-list li {
  display: flex;
  gap: 12px;
  align-items: center;
  padding: 10px 0;
  color: rgba(255,255,255,0.8);
  font-size: 15px;
}
.contact-list li svg {
  flex-shrink: 0;
  color: var(--color-accent);
}
.contact-form-wrap {
  padding: 40px;
  background: var(--color-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-lg);
  animation: fadeInUp 0.5s ease;
}
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}
.form-title {
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--color-text);
}
.form-sub {
  font-size: 14px;
  color: var(--color-text-light);
  margin-bottom: 28px;
}
.form-group {
  margin-bottom: 20px;
}
.form-group label {
  display: block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  margin-bottom: 8px;
}
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 13px 18px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xs);
  background: var(--color-bg);
  font-size: 15px;
  color: var(--color-text);
  transition: var(--transition);
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-accent);
  background: var(--color-white);
  box-shadow: 0 0 0 3px rgba(184,147,90,0.15);
}
.form-group textarea {
  min-height: 80px;
  resize: vertical;
}
.form-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.btn-submit {
  width: 100%;
  padding: 15px 32px;
  background: var(--color-accent);
  color: var(--color-white);
  border-radius: 999px;
  font-size: 15px;
  font-weight: 500;
  border: 1px solid var(--color-accent);
  transition: var(--transition);
  margin-top: 8px;
}
.btn-submit:hover {
  background: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(184,147,90,0.35);
}
.btn-submit:active {
  transform: scale(0.98);
}
.form-note {
  font-size: 13px;
  color: var(--color-text-lighter);
  text-align: center;
  margin-top: 16px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #111113;
  color: rgba(255,255,255,0.6);
  padding: 72px 0 32px;
  border-top: 1px solid rgba(255,255,255,0.06);
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.footer-brand {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.footer-about {
  font-size: 14px;
  line-height: 1.8;
  color: rgba(255,255,255,0.5);
  max-width: 360px;
}
.footer-links-title {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: 0.5px;
}
.footer-links li {
  margin-bottom: 10px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.55);
  transition: var(--transition);
  line-height: 1.6;
}
.footer-links a:hover {
  color: var(--color-accent-light);
  padding-left: 4px;
}
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: 28px;
  font-size: 13px;
  color: rgba(255,255,255,0.35);
  flex-wrap: wrap;
  gap: 12px;
}

/* ===== 响应式 ===== */
@media (max-width: 1024px) {
  .container {
    padding: 0 24px;
  }
  .hero-grid {
    gap: 40px;
  }
  .hero h1 {
    font-size: 36px;
  }
  .metrics-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-grid {
    gap: 40px;
  }
}

@media (max-width: 768px) {
  .hero {
    padding: 130px 0 72px;
  }
  .hero-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .hero-panel {
    max-width: 520px;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .compare-grid {
    grid-template-columns: 1fr;
  }
  .faq-grid {
    grid-template-columns: 1fr;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }
  .nav-links {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: rgba(21,21,21,0.98);
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    padding: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.4s ease;
    border-bottom-left-radius: var(--radius);
    border-bottom-right-radius: var(--radius);
  }
  .nav-links.open {
    max-height: 320px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
  }
  .nav-links li {
    width: 100%;
  }
  .nav-links a {
    display: block;
    padding: 16px 24px;
    border-bottom: 1px solid rgba(255,255,255,0.06);
    font-size: 15px;
  }
  .nav-links a::after {
    display: none;
  }
  .nav-links a.active {
    background: rgba(184,147,90,0.1);
    color: var(--color-accent-light);
  }
  .nav-cta {
    display: none;
  }
  .menu-toggle {
    display: inline-flex;
  }
  .section-title {
    font-size: 30px;
  }
  .form-grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 20px;
  }
  .hero h1 {
    font-size: 30px;
  }
  .hero-sub {
    font-size: 15px;
  }
  .metrics-grid {
    grid-template-columns: 1fr;
  }
  .metric-card {
    padding: 28px 24px;
  }
  .metric-num {
    font-size: 36px;
  }
  .compare-col {
    padding: 28px 20px;
  }
  .faq-item {
    padding: 22px 20px;
  }
  .contact-form-wrap {
    padding: 28px 20px;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* roulang page: category1 */
/* ============ 设计变量 ============ */
:root {
  --primary: #2f5d4a;
  --primary-dark: #204234;
  --primary-light: #e8f0eb;
  --accent: #c89b6d;
  --accent-dark: #a97a4c;
  --accent-light: #f5ead9;
  --cream: #faf7f2;
  --cream-dark: #f0e9de;
  --ink: #2b261f;
  --muted: #80786c;
  --border: #e7ddd0;
  --white: #ffffff;
  --shadow-sm: 0 1px 3px rgba(43,38,31,0.08);
  --shadow-md: 0 10px 28px rgba(43,38,31,0.10);
  --shadow-lg: 0 24px 48px rgba(43,38,31,0.12);
  --radius: 20px;
  --radius-sm: 12px;
  --font-sans: "PingFang SC","Hiragino Sans GB","Microsoft YaHei","Noto Sans SC","Helvetica Neue",Arial,sans-serif;
}

/* ============ 基础 Reset ============ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--cream);
  color: var(--ink);
  line-height: 1.72;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; transition: color .25s ease; }
ul, ol { list-style: none; }
button { font-family: inherit; cursor: pointer; background: none; border: none; }

.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding-left: 24px;
  padding-right: 24px;
}

/* ============ 按钮 ============ */
.btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--accent);
  color: var(--white);
  font-weight: 600;
  font-size: 15px;
  padding: 14px 30px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: all .3s ease;
  box-shadow: 0 6px 18px rgba(200, 155, 109, 0.30);
}
.btn-primary:hover {
  background: var(--accent-dark);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 10px 26px rgba(200, 155, 109, 0.38);
}
.btn-primary:focus-visible {
  outline: 3px solid rgba(200,155,109,0.5);
  outline-offset: 2px;
}
.btn-primary i { font-size: 14px; }

.btn-ghost {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: rgba(255,255,255,0.08);
  color: var(--white);
  font-weight: 600;
  font-size: 15px;
  padding: 14px 30px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,0.35);
  transition: all .3s ease;
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.16);
  color: #fff;
  border-color: rgba(255,255,255,0.7);
}
.btn-ghost:focus-visible {
  outline: 3px solid rgba(255,255,255,0.4);
  outline-offset: 2px;
}

.btn-submit {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  background: var(--primary);
  color: #fff;
  font-weight: 600;
  font-size: 16px;
  padding: 16px 36px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: all .3s ease;
  box-shadow: 0 8px 22px rgba(47,93,74,0.25);
}
.btn-submit:hover {
  background: var(--primary-dark);
  color: #fff;
  transform: translateY(-2px);
}
.btn-submit:focus-visible {
  outline: 3px solid rgba(47,93,74,0.4);
  outline-offset: 2px;
}

/* ============ 站点 Header / 导航 ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(250, 247, 242, 0.86);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(230, 221, 210, 0.7);
}

.site-header .container { max-width: 1280px; }

.nav-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
  gap: 20px;
}

.logo {
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--primary-dark);
  white-space: nowrap;
  position: relative;
  z-index: 1002;
}
.logo span { color: var(--accent); }
.logo:hover { color: var(--primary); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  margin: 0;
  padding: 0;
}
.nav-links li { margin: 0; }
.nav-links a {
  display: inline-block;
  padding: 8px 18px;
  font-size: 15px;
  font-weight: 500;
  color: var(--muted);
  border-radius: 999px;
  transition: all .3s ease;
  position: relative;
}
.nav-links a:hover { color: var(--primary); background: var(--primary-light); }
.nav-links a.active {
  color: var(--primary-dark);
  font-weight: 600;
  background: rgba(47, 93, 74, 0.10);
}
.nav-links a.active::after {
  content: '';
  position: absolute;
  left: 18px;
  right: 18px;
  bottom: 4px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.nav-links a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--primary);
  color: #fff !important;
  font-size: 14px;
  font-weight: 600;
  padding: 10px 22px;
  border-radius: 999px;
  transition: all .3s ease;
  white-space: nowrap;
  box-shadow: 0 4px 14px rgba(47,93,74,0.25);
}
.nav-cta:hover {
  background: var(--primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(47,93,74,0.3);
}
.nav-cta:focus-visible {
  outline: 3px solid rgba(47,93,74,0.4);
  outline-offset: 2px;
}

.menu-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  color: var(--ink);
  transition: all .3s ease;
  z-index: 1001;
}
.menu-toggle:hover { background: var(--cream-dark); }
.menu-toggle:focus-visible { outline: 2px solid var(--accent); }

/* ============ 页面 Hero ============ */
.page-hero {
  position: relative;
  background: var(--primary-dark);
  color: #fff;
  padding: clamp(5rem, 9vw, 8rem) 0;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-1.jpg') center center / cover no-repeat;
  opacity: 0.22;
}
.hero-bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, rgba(32,66,52,0.96) 10%, rgba(32,66,52,0.78) 50%, rgba(47,93,74,0.55) 100%);
}
.page-hero .container { position: relative; z-index: 2; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(200, 155, 109, 0.18);
  border: 1px solid rgba(200, 155, 109, 0.45);
  color: var(--accent-light);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 7px 18px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.page-hero h1 {
  font-size: clamp(2.1rem, 4.4vw, 3.4rem);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  margin: 0 0 20px;
  max-width: 620px;
}
.page-hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero-lead {
  font-size: clamp(15px, 1.4vw, 17px);
  line-height: 1.9;
  color: rgba(255,255,255,0.82);
  max-width: 600px;
  margin-bottom: 32px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 36px;
}

.hero-points {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  font-size: 14px;
  color: rgba(255,255,255,0.85);
}
.hero-points span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.hero-points span i {
  color: var(--accent);
  font-size: 13px;
}

/* ============ 数据面板 / Faux 榜单 ============ */
.data-panel {
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-radius: var(--radius);
  padding: 28px 28px 22px;
  box-shadow: 0 24px 48px rgba(0,0,0,0.24);
}
.data-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 22px;
  font-size: 15px;
  font-weight: 600;
  color: rgba(255,255,255,0.92);
}
.data-panel-header i { color: var(--accent); margin-right: 8px; }
.data-panel-live {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  font-weight: 500;
  color: rgba(255,255,255,0.7);
  background: rgba(255,255,255,0.1);
  padding: 4px 12px;
  border-radius: 999px;
}
.data-panel-live i { font-size: 8px; color: #6fcf97; animation: pulse-dot 1.8s infinite; }
@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(0.7); }
}

.data-list { display: flex; flex-direction: column; gap: 14px; }
.data-item { display: block; }

.data-info {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 6px;
}
.data-label {
  font-size: 13px;
  color: rgba(255,255,255,0.82);
}
.data-trend {
  font-size: 12px;
  color: #6fcf97;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.data-trend.down { color: #f29c8a; }
.data-bar {
  height: 6px;
  background: rgba(255,255,255,0.12);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 6px;
}
.data-bar span {
  display: block;
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #e0b88e);
  border-radius: 999px;
}
.data-value {
  font-size: 13px;
  font-weight: 600;
  color: rgba(255,255,255,0.9);
}

/* ============ 指标仪表板 ============ */
.metrics-section {
  padding: clamp(4rem, 7vw, 6rem) 0;
  background: var(--cream);
}
.section-header {
  margin-bottom: 52px;
  max-width: 640px;
}
.section-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.03em;
  color: var(--accent-dark);
  text-transform: uppercase;
  margin-bottom: 14px;
}
.section-eyebrow::before {
  content: '';
  width: 24px;
  height: 2px;
  background: var(--accent);
  border-radius: 2px;
}
.section-title {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
  color: var(--ink);
  margin-bottom: 14px;
}
.section-desc {
  font-size: 15px;
  line-height: 1.85;
  color: var(--muted);
}

.metric-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 32px 28px;
  height: 100%;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}
.metric-card::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--accent);
  opacity: 0;
  transition: opacity .3s ease;
}
.metric-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: transparent;
}
.metric-card:hover::before { opacity: 1; }
.metric-value {
  font-size: 56px;
  font-weight: 800;
  line-height: 1;
  letter-spacing: -0.03em;
  color: var(--primary);
  margin-bottom: 12px;
}
.metric-value span { font-size: 24px; font-weight: 700; color: var(--accent); }
.metric-label {
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 5px;
}
.metric-desc {
  font-size: 13px;
  color: var(--muted);
  line-height: 1.6;
}

/* ============ 服务矩阵 ============ */
.services-section {
  padding: clamp(4rem, 7vw, 6rem) 0;
  background: var(--white);
}
.service-card {
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  height: 100%;
  transition: all .35s ease;
  display: flex;
  flex-direction: column;
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
  background: var(--white);
  border-color: transparent;
}
.service-card-img {
  width: 100%;
  height: 180px;
  border-radius: var(--radius-sm);
  object-fit: cover;
  margin-bottom: 22px;
  box-shadow: var(--shadow-sm);
  transition: transform .4s ease;
}
.service-card:hover .service-card-img { transform: scale(1.03); }
.service-card-num {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--accent-dark);
  margin-bottom: 10px;
}
.service-card h3 {
  font-size: 19px;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--ink);
  letter-spacing: -0.01em;
}
.service-card p {
  font-size: 14px;
  line-height: 1.8;
  color: var(--muted);
  margin-bottom: 18px;
  flex-grow: 1;
}
.service-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: auto;
}
.service-tags .tag {
  font-size: 12px;
  font-weight: 500;
  color: var(--primary);
  background: var(--primary-light);
  padding: 5px 12px;
  border-radius: 999px;
}

/* ============ 结果对比 ============ */
.compare-section {
  padding: clamp(4rem, 7vw, 6rem) 0;
  background: var(--cream-dark);
  position: relative;
  overflow: hidden;
}
.compare-section::before {
  content: '';
  position: absolute;
  right: -200px;
  top: -100px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, rgba(200,155,109,0.12) 0%, transparent 70%);
  pointer-events: none;
}
.compare-section .container { position: relative; z-index: 1; }
.compare-card {
  background: var(--white);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  padding: 36px;
  height: 100%;
  box-shadow: var(--shadow-sm);
}
.compare-card.is-bad { border-left: 4px solid #d8a08a; }
.compare-card.is-good { border-left: 4px solid var(--primary); box-shadow: var(--shadow-md); }
.compare-card-header {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 22px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}
.compare-card-header .icon-wrap {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
}
.is-bad .icon-wrap { background: #f4e5df; color: #c98065; }
.is-good .icon-wrap { background: var(--primary-light); color: var(--primary); }
.compare-card h3 {
  font-size: 18px;
  font-weight: 700;
  color: var(--ink);
  margin: 0;
}
.compare-list { display: flex; flex-direction: column; gap: 18px; }
.compare-item .cmp-tag {
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  margin-bottom: 4px;
}
.compare-item .cmp-text {
  font-size: 14px;
  line-height: 1.75;
  color: var(--ink);
}
.compare-item .cmp-text.bad { color: #a26a55; }
.compare-item .cmp-text.good { color: var(--primary-dark); }
.compare-footer {
  margin-top: 24px;
  padding-top: 18px;
  border-top: 1px dashed var(--border);
  font-size: 13px;
  color: var(--muted);
}

/* ============ FAQ ============ */
.faq-section {
  padding: clamp(4rem, 7vw, 6rem) 0;
  background: var(--white);
}
.faq-layout {
  max-width: 880px;
  margin: 0 auto;
}
.faq-item {
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  margin-bottom: 14px;
  overflow: hidden;
  transition: all .3s ease;
}
.faq-item:hover { border-color: rgba(200,155,109,0.5); }
.faq-item.active { box-shadow: var(--shadow-sm); border-color: rgba(200,155,109,0.6); }
.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  width: 100%;
  padding: 20px 24px;
  font-size: 15px;
  font-weight: 600;
  color: var(--ink);
  text-align: left;
  transition: all .3s ease;
  background: none;
  border: none;
}
.faq-question:hover { color: var(--primary); }
.faq-question:focus-visible { outline: 2px solid var(--accent); outline-offset: -2px; border-radius: var(--radius-sm); }
.faq-question .faq-icon {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 13px;
  transition: all .3s ease;
}
.faq-item.active .faq-icon {
  background: var(--primary);
  color: #fff;
  transform: rotate(45deg);
}
.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease;
}
.faq-answer-inner {
  padding: 0 24px 22px;
  font-size: 14px;
  line-height: 1.9;
  color: var(--muted);
}

/* ============ 转化表单 / CTA ============ */
.contact-section {
  padding: clamp(4rem, 7vw, 6rem) 0;
  background: var(--primary-dark);
  position: relative;
  overflow: hidden;
}
.contact-section .bg-img {
  position: absolute;
  inset: 0;
  background: url('/assets/images/backpic/back-2.jpg') center center / cover no-repeat;
  opacity: 0.15;
}
.contact-section .bg-img::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(32,66,52,0.7) 0%, rgba(32,66,52,0.95) 100%);
}
.contact-section .container { position: relative; z-index: 2; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
}
.contact-info h2 {
  color: #fff;
  font-size: clamp(1.7rem, 3vw, 2.5rem);
  font-weight: 700;
  line-height: 1.35;
  letter-spacing: -0.02em;
  margin-bottom: 18px;
}
.contact-info p {
  color: rgba(255,255,255,0.75);
  font-size: 15px;
  line-height: 1.85;
  margin-bottom: 32px;
}
.contact-methods {
  display: flex;
  flex-direction: column;
  gap: 16px;
  margin-bottom: 36px;
}
.contact-method {
  display: flex;
  align-items: center;
  gap: 14px;
  color: rgba(255,255,255,0.9);
  font-size: 15px;
  transition: all .3s ease;
}
.contact-method:hover { color: var(--accent-light); transform: translateX(4px); }
.contact-method i {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(200,155,109,0.18);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 15px;
  flex-shrink: 0;
  transition: all .3s ease;
}
.contact-method:hover i { background: var(--accent); color: #fff; }

.contact-note {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 13px;
  color: rgba(255,255,255,0.6);
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.12);
  padding: 10px 18px;
  border-radius: 999px;
}
.contact-note i { color: var(--accent); }

.contact-form-wrap {
  background: var(--white);
  border-radius: var(--radius);
  padding: 36px 32px;
  box-shadow: var(--shadow-lg);
}
.contact-form-wrap h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 8px;
}
.contact-form-wrap > p {
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 26px;
}
.form-label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 6px;
}
.form-control, .form-select {
  display: block;
  width: 100%;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 12px 16px;
  font-size: 14px;
  font-family: inherit;
  color: var(--ink);
  background: var(--cream);
  transition: all .25s ease;
}
.form-control:focus, .form-select:focus {
  outline: none;
  border-color: var(--primary);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(47,93,74,0.12);
}
.form-control::placeholder { color: #aaa49a; }
textarea.form-control { min-height: 90px; resize: vertical; }
.form-success {
  text-align: center;
  padding: 40px 10px;
}
.form-success i {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 74px;
  height: 74px;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  font-size: 30px;
  margin-bottom: 22px;
}
.form-success h3 {
  font-size: 20px;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 10px;
}
.form-success p {
  font-size: 14px;
  color: var(--muted);
  margin: 0;
}

/* ============ 页脚 ============ */
.site-footer {
  background: #1c1a17;
  color: rgba(255,255,255,0.66);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}
.footer-brand {
  font-size: 20px;
  font-weight: 700;
  color: #fff;
  margin-bottom: 14px;
}
.footer-about {
  font-size: 14px;
  line-height: 1.95;
  color: rgba(255,255,255,0.56);
  max-width: 360px;
  margin: 0;
}
.footer-links-title {
  font-size: 14px;
  font-weight: 700;
  color: rgba(255,255,255,0.85);
  margin-bottom: 18px;
}
.footer-links {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.footer-links a {
  font-size: 14px;
  color: rgba(255,255,255,0.56);
  transition: color .25s ease, transform .25s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.footer-links a:hover { color: var(--accent); transform: translateX(4px); }
.footer-links a:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  padding: 24px 0 26px;
  font-size: 13px;
  color: rgba(255,255,255,0.38);
}

/* ============ 响应式断点 ============ */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .contact-grid { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  .nav-bar { height: 64px; }
  .menu-toggle { display: flex; }
  .nav-links {
    position: fixed;
    inset: 0;
    background: rgba(250,247,242,0.98);
    flex-direction: column;
    justify-content: center;
    gap: 12px;
    padding: 24px;
    transform: translateY(-100%);
    opacity: 0;
    visibility: hidden;
    transition: all .4s ease;
    z-index: 999;
  }
  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
  }
  .nav-links a {
    font-size: 18px;
    padding: 14px 20px;
    text-align: center;
  }
  .nav-links a.active::after { display: none; }
  .nav-cta { display: none; }
  .page-hero { text-align: left; }
  .page-hero h1 { font-size: 1.9rem; }
  .hero-points { flex-direction: column; gap: 10px; }
  .data-panel { margin-top: 20px; }
  .metric-card { padding: 24px 20px; }
  .service-card-img { height: 160px; }
  .compare-card { padding: 28px 22px; }
  .contact-form-wrap { padding: 28px 22px; }
}

@media (max-width: 520px) {
  .container { padding-left: 18px; padding-right: 18px; }
  .page-hero { padding: 4rem 0; }
  .page-hero h1 { font-size: 1.65rem; line-height: 1.3; }
  .hero-lead { font-size: 14px; }
  .hero-actions { flex-direction: column; align-items: stretch; }
  .hero-actions .btn-primary, .hero-actions .btn-ghost { width: 100%; }
  .metric-value { font-size: 44px; }
  .section-title { font-size: 1.4rem; }
  .service-card { padding: 20px; }
  .service-card-img { height: 140px; }
  .compare-card { padding: 22px 18px; }
  .faq-question { padding: 16px 18px; font-size: 14px; flex-wrap: wrap; }
  .faq-answer-inner { padding: 0 18px 18px; }
  .contact-form-wrap { padding: 22px 18px; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; text-align: center; }
}