/* roulang page: index */
:root {
  --bg-dark: #0E0D0B;
  --bg-panel: #1B1814;
  --bg-float: #201C17;
  --gold: #C6A15B;
  --gold-light: #E6CD93;
  --text-main: #F3EFE8;
  --text-sub: #A79E93;
  --text-dim: #7A7268;
  --border-light: rgba(255,255,255,0.08);
  --border-gold: rgba(198,161,91,0.35);
  --radius-card: 8px;
  --radius-btn: 4px;
  --shadow-card: 0 12px 40px rgba(0,0,0,0.4);
  --shadow-hover: 0 18px 50px rgba(0,0,0,0.55), 0 0 24px rgba(150,115,55,0.12);
  --font-serif: Georgia, "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
  --font-body: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", "Segoe UI", sans-serif;
  --font-num: "Didot", "Bodoni MT", Georgia, serif;
}
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: var(--font-body);
  background: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
  font-size: 0.95rem;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }
button { font-family: inherit; border: none; background: none; color: inherit; cursor: pointer; }
input, textarea, select { font-family: inherit; }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }
.section { padding: clamp(4rem, 8vw, 7.5rem) 0; position: relative; }
.section + .section { border-top: 1px solid var(--border-light); }

/* 按钮 */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: var(--radius-btn);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.03em;
  transition: all 0.25s ease;
  border: 1px solid transparent;
  line-height: 1.2;
  min-height: 44px;
}
.btn-gold {
  background: var(--gold);
  color: #17130C;
  border-color: var(--gold);
}
.btn-gold:hover { background: var(--gold-light); border-color: var(--gold-light); transform: translateY(-2px); }
.btn-gold:active { transform: translateY(1px); }
.btn-outline {
  background: transparent;
  color: var(--text-main);
  border-color: var(--border-gold);
}
.btn-outline:hover { border-color: var(--gold); color: var(--gold-light); transform: translateY(-2px); }
.btn-outline:active { transform: translateY(1px); }

/* 板块头 */
.section-head {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  margin-bottom: clamp(2.5rem, 5vw, 4rem);
  border-bottom: 1px solid var(--border-light);
  padding-bottom: 28px;
}
.section-num {
  font-family: var(--font-num);
  font-size: 1rem;
  color: var(--gold);
  letter-spacing: 0.08em;
  padding-top: 8px;
  white-space: nowrap;
}
.section-head h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-main);
  line-height: 1.3;
}
.section-head p {
  color: var(--text-sub);
  margin-top: 8px;
  font-size: 0.95rem;
  max-width: 560px;
}

/* 标签 */
.tag {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 2px;
  background: rgba(198,161,91,0.12);
  border: 1px solid var(--border-gold);
  color: var(--gold-light);
  font-size: 0.75rem;
  letter-spacing: 0.06em;
}
.tag-plain {
  background: rgba(255,255,255,0.04);
  border-color: var(--border-light);
  color: var(--text-sub);
}

/* 导航 */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  height: 76px;
  display: flex;
  align-items: center;
  background: rgba(20,18,15,0.45);
  backdrop-filter: blur(14px) saturate(120%);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  border-bottom: 1px solid rgba(200,170,110,0.18);
  transition: background 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}
.site-header.scrolled {
  background: rgba(14,13,11,0.92);
  box-shadow: 0 6px 24px rgba(0,0,0,0.35);
  border-color: rgba(198,161,91,0.2);
}
.header-inner { display: flex; align-items: center; justify-content: space-between; width: 100%; }
.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand-mark {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: var(--gold);
  color: #17130C;
  font-family: var(--font-serif);
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: 2px;
  letter-spacing: 0.02em;
}
.brand-name {
  font-family: var(--font-serif);
  font-size: 1.25rem;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: 0.04em;
}
.main-nav { display: flex; align-items: center; gap: 8px; }
.nav-link {
  display: inline-block;
  padding: 10px 20px;
  font-size: 0.9rem;
  color: var(--text-main);
  border-radius: 4px;
  transition: color 0.25s, background 0.25s;
  position: relative;
}
.nav-link:hover { color: var(--gold-light); }
.nav-link.active { color: var(--gold-light); }
.nav-link.active::after {
  content: '';
  position: absolute;
  left: 20px; right: 20px; bottom: 4px;
  height: 1px;
  background: linear-gradient(90deg, var(--gold), transparent);
}
.nav-actions { display: flex; align-items: center; gap: 16px; }
.nav-cta { padding: 10px 24px; font-size: 0.85rem; min-height: 40px; }

.nav-toggle { display: none; width: 42px; height: 42px; flex-direction: column; align-items: center; justify-content: center; gap: 5px; border-radius: 4px; border: 1px solid var(--border-light); }
.nav-toggle span { width: 20px; height: 1px; background: var(--text-main); display: block; transition: transform 0.3s, opacity 0.3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(6px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6px) rotate(-45deg); }

.mobile-menu {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(14,13,11,0.97);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 36px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s;
}
.mobile-menu.open { opacity: 1; visibility: visible; }
.mobile-link {
  font-family: var(--font-serif);
  font-size: 2rem;
  color: var(--text-main);
  letter-spacing: 0.04em;
  padding: 8px 0;
  border-bottom: 1px solid transparent;
  transition: color 0.25s, border-color 0.25s;
}
.mobile-link:hover, .mobile-link.active { color: var(--gold-light); border-color: var(--gold-light); }

/* Hero */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  overflow: hidden;
  padding-top: 76px;
}
.hero-bg {
  position: absolute; inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}
.hero-mask {
  position: absolute; inset: 0;
  background: linear-gradient(to right, rgba(14,13,11,0.88) 0%, rgba(14,13,11,0.72) 55%, rgba(14,13,11,0.4) 100%);
  z-index: 1;
}
.hero-inner { position: relative; z-index: 2; width: 100%; }
.hero-content { max-width: 640px; padding: 60px 0; }
.hero-kicker {
  display: flex; align-items: center; gap: 14px;
  color: var(--gold);
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  margin-bottom: 24px;
  text-transform: uppercase;
  font-weight: 500;
}
.hero-kicker::before {
  content: '';
  width: 40px; height: 1px;
  background: var(--gold);
  flex-shrink: 0;
}
.hero-title {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 6vw, 4.8rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  line-height: 1.15;
  color: var(--text-main);
  margin-bottom: 24px;
}
.hero-subtitle {
  font-size: 1.05rem;
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 40px;
  max-width: 480px;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }
.hero-scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  height: 60px;
  width: 1px;
  display: flex;
  justify-content: center;
}
.hero-scroll::before {
  content: '';
  width: 1px;
  height: 100%;
  background: linear-gradient(to bottom, var(--gold), transparent);
  animation: scrollPulse 2.4s ease-in-out infinite;
}
@keyframes scrollPulse {
  0% { transform: scaleY(0); transform-origin: top; }
  50% { transform: scaleY(1); transform-origin: top; }
  50.1% { transform: scaleY(1); transform-origin: bottom; }
  100% { transform: scaleY(0); transform-origin: bottom; }
}

/* 服务总览 */
.service-layout { display: flex; gap: 56px; }
.service-list { width: 38%; flex-shrink: 0; display: flex; flex-direction: column; gap: 4px; }
.service-item {
  padding: 20px 24px;
  border-left: 1px solid var(--border-light);
  cursor: pointer;
  transition: all 0.3s ease;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: transparent;
}
.service-item .svc-index {
  font-family: var(--font-num);
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 5px;
  transition: color 0.3s;
}
.service-item .svc-content h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  letter-spacing: 0.03em;
  transition: color 0.3s;
}
.service-item .svc-content p { font-size: 0.82rem; color: var(--text-dim); margin-top: 4px; transition: color 0.3s; }
.service-item .svc-arrow {
  margin-left: auto;
  color: var(--text-dim);
  font-size: 0.9rem;
  margin-top: 4px;
  opacity: 0;
  transform: translateX(-6px);
  transition: all 0.3s;
}
.service-item:hover { border-left-color: var(--border-gold); background: rgba(255,255,255,0.02); }
.service-item.active {
  border-left-color: var(--gold);
  background: linear-gradient(to right, rgba(198,161,91,0.06), transparent);
}
.service-item.active .svc-index { color: var(--gold); }
.service-item.active .svc-content h3 { color: var(--gold-light); }
.service-item.active .svc-content p { color: var(--text-sub); }
.service-item.active .svc-arrow { opacity: 1; transform: translateX(0); color: var(--gold); }

.service-panels { flex: 1; min-width: 0; }
.service-panel { display: none; }
.service-panel.active { display: flex; flex-direction: column; }
.panel-media {
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--border-gold);
  margin-bottom: 24px;
}
.panel-media img {
  width: 100%;
  height: 320px;
  object-fit: cover;
}
.panel-body h4 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
  margin-bottom: 12px;
  color: var(--text-main);
  letter-spacing: 0.02em;
}
.panel-body p {
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 20px;
  font-size: 0.95rem;
  max-width: 540px;
}
.text-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--gold);
  font-size: 0.85rem;
  letter-spacing: 0.04em;
  transition: color 0.25s;
}
.text-link:hover { color: var(--gold-light); }
.text-link i { font-size: 0.75rem; transition: transform 0.25s; }
.text-link:hover i { transform: translateX(4px); }

/* 优势数据 */
.stats-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; }
.stat-item { padding: 16px 0; border-top: 1px solid var(--gold); }
.stat-num {
  font-family: var(--font-num);
  font-size: clamp(2.2rem, 4.5vw, 3.4rem);
  font-weight: 400;
  color: var(--text-main);
  line-height: 1.2;
  letter-spacing: 0.02em;
  display: flex;
  align-items: baseline;
}
.stat-num .stat-unit { font-size: 0.6em; color: var(--gold); margin-left: 4px; }
.stat-label { font-size: 0.85rem; color: var(--text-sub); margin-top: 8px; letter-spacing: 0.06em; }

/* 案例展示 */
.case-row { display: flex; gap: 56px; align-items: center; margin-bottom: 64px; }
.case-row:last-child { margin-bottom: 0; }
.case-row:nth-child(even) { flex-direction: row-reverse; }
.case-media {
  flex: 1;
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--border-gold);
  height: 360px;
}
.case-media img {
  width: 100%; height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.case-media:hover img { transform: scale(1.02); }
.case-media .case-hover {
  position: absolute; inset: 0;
  background: rgba(14,13,11,0.6);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity 0.4s;
  color: var(--gold-light);
  font-size: 0.9rem;
  letter-spacing: 0.1em;
}
.case-media:hover .case-hover { opacity: 1; }
.case-body { flex: 1; max-width: 480px; }
.case-body .tag { margin-bottom: 16px; }
.case-body h3 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 14px;
  line-height: 1.4;
  letter-spacing: 0.02em;
}
.case-body p {
  color: var(--text-sub);
  line-height: 1.8;
  margin-bottom: 20px;
  font-size: 0.95rem;
}

/* 解决方案 */
.process-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 40px; position: relative; }
.process-grid::before {
  content: '';
  position: absolute;
  top: 20px;
  left: 8%;
  right: 8%;
  height: 1px;
  border-top: 1px dashed rgba(198,161,91,0.3);
}
.process-step { padding-right: 24px; position: relative; }
.process-step .step-num {
  font-family: var(--font-num);
  font-size: 1.2rem;
  color: var(--gold);
  margin-bottom: 16px;
  display: block;
  letter-spacing: 0.08em;
}
.process-step h3 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}
.process-step p {
  font-size: 0.88rem;
  color: var(--text-sub);
  line-height: 1.7;
}

/* 最新动态 */
.news-list { display: flex; flex-direction: column; }
.news-card {
  display: flex;
  align-items: flex-start;
  gap: 28px;
  padding: 28px 0;
  border-bottom: 1px solid var(--border-light);
  transition: all 0.3s ease;
  border-radius: 4px;
  padding-left: 12px;
  padding-right: 12px;
}
.news-card:hover { background: rgba(255,255,255,0.02); border-bottom-color: var(--border-gold); }
.news-meta { flex-shrink: 0; min-width: 88px; }
.news-cat { display: inline-block; padding: 4px 10px; background: rgba(198,161,91,0.1); border: 1px solid var(--border-gold); border-radius: 2px; color: var(--gold-light); font-size: 0.72rem; letter-spacing: 0.06em; margin-bottom: 8px; }
.news-date { display: block; font-size: 0.8rem; color: var(--text-dim); letter-spacing: 0.03em; }
.news-content { flex: 1; min-width: 0; }
.news-content h3 {
  font-family: var(--font-serif);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 8px;
  line-height: 1.5;
  transition: color 0.25s;
}
.news-card:hover .news-content h3 { color: var(--gold-light); }
.news-content p {
  font-size: 0.9rem;
  color: var(--text-sub);
  line-height: 1.7;
  margin-bottom: 10px;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}
.news-more {
  font-size: 0.82rem;
  color: var(--gold);
  letter-spacing: 0.05em;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
.news-empty {
  text-align: center;
  padding: 60px 0;
  border: 1px dashed var(--border-light);
  border-radius: var(--radius-card);
  color: var(--text-sub);
}
.news-empty-icon {
  width: 52px; height: 52px;
  border: 1px solid var(--border-gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  font-size: 1.2rem;
  color: var(--gold);
}

/* FAQ */
.faq-list { max-width: 860px; }
.faq-item {
  border-bottom: 1px solid var(--border-light);
  transition: border-color 0.3s;
}
.faq-item:first-child { border-top: 1px solid var(--border-light); }
.faq-question {
  display: flex;
  align-items: center;
  gap: 20px;
  padding: 26px 8px;
  cursor: pointer;
  transition: all 0.3s;
  width: 100%;
  text-align: left;
  color: var(--text-main);
  font-size: 1rem;
  letter-spacing: 0.02em;
}
.faq-question .q-index {
  font-family: var(--font-num);
  font-size: 0.78rem;
  color: var(--text-dim);
  min-width: 24px;
  transition: color 0.3s;
}
.faq-question .q-title { flex: 1; font-family: var(--font-serif); font-weight: 600; }
.faq-question .q-icon {
  font-size: 1.1rem;
  color: var(--gold);
  transition: transform 0.3s;
  min-width: 20px;
  text-align: center;
}
.faq-item.is-open .q-icon { transform: rotate(45deg); }
.faq-item.is-open .q-title { color: var(--gold-light); }
.faq-item.is-open .q-index { color: var(--gold); }
.faq-answer {
  padding: 0 28px 26px 52px;
  color: var(--text-sub);
  font-size: 0.92rem;
  line-height: 1.8;
  display: none;
}
.faq-item.is-open .faq-answer { display: block; animation: fadeIn 0.35s ease; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(-6px); } to { opacity: 1; transform: translateY(0); } }

/* CTA */
.cta-section {
  position: relative;
  background-size: cover;
  background-position: center;
  padding: clamp(4.5rem, 8vw, 7.5rem) 0;
}
.cta-mask {
  position: absolute; inset: 0;
  background: rgba(14,13,11,0.78);
}
.cta-inner { position: relative; z-index: 2; display: flex; gap: 60px; }
.cta-info { flex: 1; }
.cta-info h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.7rem, 3vw, 2.4rem);
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 20px;
  letter-spacing: 0.02em;
}
.cta-info p { color: var(--text-sub); line-height: 1.8; margin-bottom: 32px; max-width: 460px; }
.cta-contact-list { list-style: none; display: flex; flex-direction: column; gap: 16px; }
.cta-contact-list li { display: flex; align-items: center; gap: 14px; color: var(--text-sub); font-size: 0.92rem; }
.cta-contact-list li i { color: var(--gold); width: 18px; text-align: center; }
.cta-form-wrap { flex: 1; background: rgba(27,24,20,0.85); border: 1px solid var(--border-light); border-radius: var(--radius-card); padding: 36px; }
.cta-form-wrap h3 { font-family: var(--font-serif); font-size: 1.2rem; margin-bottom: 6px; color: var(--text-main); }
.cta-form-wrap > p { font-size: 0.85rem; color: var(--text-sub); margin-bottom: 24px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-sub);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
}
.form-control {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-light);
  padding: 12px 2px;
  color: var(--text-main);
  font-size: 0.92rem;
  transition: border-color 0.3s;
  border-radius: 0;
}
.form-control:focus {
  outline: none;
  border-bottom-color: var(--gold);
  box-shadow: none;
}
textarea.form-control { resize: vertical; min-height: 70px; line-height: 1.6; }

/* 页脚 */
.site-footer {
  background: #0A0908;
  border-top: 1px solid var(--gold);
  padding-top: 70px;
}
.footer-top { padding-bottom: 40px; }
.footer-brand { margin-bottom: 20px; display: flex; align-items: center; gap: 12px; }
.footer-brand .brand-mark { width: 34px; height: 34px; font-size: 0.8rem; }
.footer-brand .brand-name { font-size: 1.1rem; }
.footer-desc { color: var(--text-dim); font-size: 0.88rem; line-height: 1.7; max-width: 320px; }
.footer-title {
  font-size: 0.9rem;
  color: var(--text-main);
  letter-spacing: 0.06em;
  margin-bottom: 18px;
  font-weight: 600;
}
.footer-links { display: flex; flex-direction: column; gap: 10px; }
.footer-links a { color: var(--text-sub); font-size: 0.88rem; transition: color 0.25s; }
.footer-links a:hover { color: var(--gold); }
.footer-contact { color: var(--text-sub); font-size: 0.88rem; display: flex; flex-direction: column; gap: 10px; }
.footer-contact li { display: flex; gap: 10px; align-items: center; }
.footer-contact a { color: var(--text-sub); }
.footer-contact a:hover { color: var(--gold); }
.footer-bottom {
  border-top: 1px solid var(--border-light);
  padding: 22px 0;
  text-align: center;
  color: var(--text-dim);
  font-size: 0.82rem;
  letter-spacing: 0.03em;
}

/* 动画 */
.animate-up { opacity: 0; transform: translateY(20px); transition: opacity 0.6s ease-out, transform 0.6s ease-out; }
.animate-up.in-view { opacity: 1; transform: translateY(0); }

@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; }
  .animate-up { opacity: 1; transform: none; }
  .hero-scroll::before { animation: none; }
  .case-media img, .case-media .case-hover { transition: none; }
}

/* 响应式 */
@media screen and (max-width: 1024px) {
  .service-layout { flex-direction: column; gap: 40px; }
  .service-list { width: 100%; flex-direction: row; flex-wrap: wrap; gap: 8px; }
  .service-item { flex: 1 1 calc(50% - 8px); min-width: 180px; border: 1px solid var(--border-light); border-radius: 8px; }
  .service-item.active { border-color: var(--gold); border-left-color: var(--gold); }
  .process-grid { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .process-grid::before { display: none; }
  .case-row { flex-direction: column !important; gap: 32px; }
  .case-body { max-width: 620px; }
  .cta-inner { flex-direction: column; gap: 40px; }
}
@media screen and (max-width: 768px) {
  .main-nav { display: none; }
  .nav-cta { display: none; }
  .nav-toggle { display: flex; }
  .stats-grid { grid-template-columns: repeat(2, 1fr); gap: 24px; }
  .service-item { flex: 1 1 100%; }
  .panel-media img { height: 220px; }
  .case-media { height: 260px; }
  .news-card { flex-direction: column; gap: 14px; padding: 22px 6px; }
  .news-meta { min-width: 0; }
  .faq-question { padding: 22px 6px; }
  .faq-answer { padding: 0 16px 22px 40px; }
  .cta-form-wrap { padding: 24px; }
}
@media screen and (max-width: 520px) {
  .container { padding: 0 18px; }
  .brand-name { font-size: 1.05rem; }
  .hero-title { font-size: 2.3rem; }
  .hero-subtitle { font-size: 0.95rem; }
  .hero-actions { flex-direction: column; width: 100%; }
  .hero-actions .btn { width: 100%; }
  .stats-grid { grid-template-columns: 1fr 1fr; gap: 20px; }
  .process-grid { grid-template-columns: 1fr; gap: 24px; }
  .case-media { height: 210px; }
  .section-head { flex-direction: column; gap: 8px; }
  .cta-contact-list li { font-size: 0.85rem; }
}

/* roulang page: category1 */
:root {
  --bg-deep: #0E0D0B;
  --bg-panel: #1B1814;
  --bg-float: #201C17;
  --gold-main: #C6A15B;
  --gold-bright: #E6CD93;
  --text-primary: #F3EFE8;
  --text-secondary: #A79E93;
  --text-muted: #7A7268;
  --border-subtle: rgba(255,255,255,0.08);
  --border-gold: rgba(198,161,91,0.35);
  --radius-card: 8px;
  --radius-btn: 4px;
  --radius-badge: 2px;
  --shadow-card: 0 12px 40px rgba(0,0,0,0.4);
  --shadow-card-hover: 0 18px 50px rgba(0,0,0,0.55);
  --shadow-gold: rgba(150,115,55,0.12);
  --font-serif: Georgia, "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
  --font-num: "Didot", "Bodoni MT", Georgia, serif;
  --nav-height: 76px;
  --section-pad: clamp(4rem, 8vw, 7.5rem);
  --transition: 0.25s ease-out;
}
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  background: var(--bg-deep);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s ease;
}
a:hover {
  color: var(--gold-bright);
}
img {
  max-width: 100%;
  height: auto;
  display: block;
}
button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
  border: none;
  outline: none;
  background: none;
}
ul, ol {
  list-style: none;
}
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
  position: relative;
}
section[id] {
  scroll-margin-top: calc(var(--nav-height) + 20px);
}
::selection {
  background: rgba(198,161,91,0.3);
  color: var(--text-primary);
}
:focus-visible {
  outline: 2px solid var(--gold-main);
  outline-offset: 3px;
}

/* ===== 导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  background: rgba(20,18,15,0.45);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  backdrop-filter: blur(14px) saturate(120%);
  border-bottom: 1px solid rgba(200,170,110,0.18);
  z-index: 1000;
  transition: background 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}
.site-header.scrolled {
  background: rgba(14,13,11,0.92);
  box-shadow: 0 6px 24px rgba(0,0,0,0.35);
  border-bottom-color: rgba(200,170,110,0.12);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  background: linear-gradient(135deg, var(--gold-bright) 0%, var(--gold-main) 60%, #a07e3f 100%);
  color: var(--bg-deep);
  font-family: var(--font-serif);
  font-size: 1rem;
  font-weight: 700;
  border-radius: 4px;
  letter-spacing: 0.04em;
}
.brand-name {
  font-family: var(--font-serif);
  font-size: 1.35rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.main-nav {
  display: flex;
  align-items: center;
  gap: 2rem;
  margin-left: auto;
  margin-right: 1.5rem;
}
.nav-link {
  position: relative;
  color: var(--text-primary);
  font-size: 0.95rem;
  font-weight: 400;
  padding: 8px 2px;
  transition: color 0.25s;
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 0;
  height: 2px;
  background: var(--gold-main);
  transition: width 0.3s ease;
}
.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}
.nav-link:hover {
  color: var(--gold-bright);
}
.nav-link.active {
  color: var(--gold-bright);
}
.nav-actions {
  display: flex;
  align-items: center;
  gap: 1rem;
}
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-btn);
  font-size: 0.95rem;
  font-weight: 500;
  padding: 0.75rem 1.5rem;
  cursor: pointer;
  transition: all 0.25s ease;
  white-space: nowrap;
}
.btn-gold {
  background: var(--gold-main);
  color: var(--bg-deep);
  border: 1px solid var(--gold-main);
}
.btn-gold:hover {
  background: var(--gold-bright);
  border-color: var(--gold-bright);
  color: var(--bg-deep);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(198,161,91,0.25);
}
.btn-gold:active {
  transform: translateY(0);
}
.nav-cta {
  padding: 0.55rem 1.25rem;
  font-size: 0.9rem;
}
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: 10px;
  cursor: pointer;
  background: transparent;
}
.nav-toggle span {
  display: block;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}
.nav-toggle.active span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(14,13,11,0.98);
  z-index: 999;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.4s ease, visibility 0.4s ease;
}
.mobile-menu.active {
  opacity: 1;
  visibility: visible;
}
.mobile-menu .mobile-link {
  color: var(--text-primary);
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  padding: 0.5rem 1rem;
  transition: color 0.25s;
}
.mobile-menu .mobile-link:hover,
.mobile-menu .mobile-link.active {
  color: var(--gold-bright);
}
.mobile-menu .mobile-cta {
  margin-top: 1rem;
}
.mobile-menu-close {
  position: absolute;
  top: 20px;
  right: 24px;
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-primary);
  font-size: 1.6rem;
  cursor: pointer;
}

/* ===== Hero ===== */
.page-hero {
  position: relative;
  min-height: 70vh;
  display: flex;
  align-items: center;
  background: linear-gradient(to right, rgba(14,13,11,0.92) 0%, rgba(14,13,11,0.75) 50%, rgba(14,13,11,0.55) 100%), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
  padding: calc(var(--nav-height) + 3rem) 0 4rem;
  border-bottom: 1px solid var(--border-gold);
}
.page-hero::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, var(--gold-main) 0%, transparent 100%);
  opacity: 0.5;
}
.hero-content {
  max-width: 780px;
}
.hero-eyebrow {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 1.75rem;
  color: var(--gold-bright);
  font-size: 0.9rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
.hero-eyebrow::before {
  content: "";
  width: 40px;
  height: 1px;
  background: var(--gold-main);
}
.page-hero h1 {
  font-family: var(--font-serif);
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}
.page-hero h1 .gold-text {
  color: var(--gold-main);
}
.hero-sub {
  color: var(--text-secondary);
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 2.5rem;
  max-width: 620px;
}
.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}
.btn-outline {
  background: transparent;
  color: var(--gold-bright);
  border: 1px solid var(--border-gold);
}
.btn-outline:hover {
  border-color: var(--gold-main);
  background: rgba(198,161,91,0.08);
  color: var(--gold-bright);
  transform: translateY(-2px);
}
.scroll-indicator {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  width: 1px;
  height: 56px;
  background: rgba(255,255,255,0.15);
  overflow: hidden;
}
.scroll-indicator::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 30%;
  background: var(--gold-main);
  animation: scrollLine 2.2s ease-in-out infinite;
}
@keyframes scrollLine {
  0% { top: -30%; }
  60% { top: 100%; }
  100% { top: 100%; }
}

/* ===== 通用区块 ===== */
.section-block {
  padding: var(--section-pad) 0;
  position: relative;
}
.section-dark {
  background: var(--bg-deep);
}
.section-panel {
  background: var(--bg-panel);
}
.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 2rem;
  margin-bottom: 3.5rem;
  flex-wrap: wrap;
}
.section-header-left {
  max-width: 760px;
}
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--gold-main);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  margin-bottom: 1rem;
}
.section-tag::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--gold-main);
}
.section-title {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 600;
  line-height: 1.3;
  letter-spacing: 0.04em;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}
.section-desc {
  color: var(--text-secondary);
  font-size: 0.98rem;
  line-height: 1.8;
  max-width: 640px;
}
.section-index {
  font-family: var(--font-num);
  font-size: 3rem;
  font-weight: 400;
  color: rgba(198,161,91,0.3);
  line-height: 1;
  letter-spacing: 0.02em;
}

/* ===== 图文交错内容区 ===== */
.alternate-block {
  padding: 4rem 0;
  border-bottom: 1px solid var(--border-subtle);
}
.alternate-block:last-child {
  border-bottom: none;
}
.alternate-row {
  display: flex;
  align-items: center;
  gap: 4rem;
}
.alternate-row.reverse .alternate-image {
  order: 2;
}
.alternate-row.reverse .alternate-text {
  order: 1;
}
.alternate-image {
  flex: 0 0 46%;
  position: relative;
  border-radius: var(--radius-card);
  overflow: hidden;
  border: 1px solid var(--border-gold);
  box-shadow: var(--shadow-card);
  aspect-ratio: 4 / 3;
}
.alternate-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.6s ease;
}
.alternate-image:hover img {
  transform: scale(1.02);
}
.alternate-image::after {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: linear-gradient(to top, rgba(14,13,11,0.35) 0%, transparent 60%);
  pointer-events: none;
}
.alternate-text {
  flex: 1;
}
.alternate-anchor {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  background: rgba(198,161,91,0.1);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-badge);
  color: var(--gold-bright);
  font-size: 0.8rem;
  letter-spacing: 0.05em;
  margin-bottom: 1.5rem;
}
.alternate-text h3 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 1rem;
  letter-spacing: 0.02em;
}
.alternate-text p {
  color: var(--text-secondary);
  line-height: 1.85;
  font-size: 0.98rem;
  margin-bottom: 1rem;
}
.alternate-text .detail-list {
  margin-top: 1rem;
  display: grid;
  gap: 0.75rem;
}
.alternate-text .detail-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.95rem;
}
.alternate-text .detail-list li i {
  color: var(--gold-main);
  font-size: 0.8rem;
  margin-top: 5px;
}
.alternate-text .detail-list li strong {
  color: var(--text-primary);
  font-weight: 500;
}

/* ===== 资讯价值 ===== */
.value-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 2rem;
}
.value-item {
  padding: 1.75rem 1.5rem;
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.value-item::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-main) 0%, transparent 100%);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.4s ease;
}
.value-item:hover {
  border-color: var(--border-gold);
  box-shadow: var(--shadow-card-hover);
}
.value-item:hover::before {
  transform: scaleX(1);
}
.value-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(198,161,91,0.1);
  border: 1px solid var(--border-gold);
  border-radius: 4px;
  color: var(--gold-main);
  font-size: 1.1rem;
  margin-bottom: 1.25rem;
}
.value-item h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}
.value-item p {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.7;
}

/* ===== 资讯场景 ===== */
.scene-block {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.75rem;
}
.scene-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-card);
  padding: 2rem 1.75rem;
  transition: all 0.3s ease;
  position: relative;
}
.scene-card::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 0;
  height: 1px;
  background: var(--gold-main);
  transition: width 0.4s ease;
}
.scene-card:hover {
  border-color: var(--border-gold);
  box-shadow: var(--shadow-card-hover);
}
.scene-card:hover::after {
  width: 80%;
}
.scene-num {
  font-family: var(--font-num);
  font-size: 1.1rem;
  color: var(--gold-main);
  margin-bottom: 1rem;
  letter-spacing: 0.06em;
}
.scene-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}
.scene-card p {
  color: var(--text-secondary);
  font-size: 0.92rem;
  line-height: 1.8;
}

/* ===== 资讯流程 ===== */
.process-flow {
  position: relative;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  margin-top: 2.5rem;
}
.process-flow::before {
  content: "";
  position: absolute;
  top: 28px;
  left: 5%;
  right: 5%;
  height: 1px;
  border-top: 1px dashed rgba(198,161,91,0.35);
}
.process-step {
  position: relative;
  padding-top: 3.5rem;
}
.process-step::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--gold-main);
  background: var(--bg-deep);
  box-shadow: 0 0 12px rgba(198,161,91,0.3);
}
.process-num {
  font-family: var(--font-num);
  font-size: 2.5rem;
  font-weight: 400;
  color: rgba(198,161,91,0.4);
  line-height: 1;
  margin-bottom: 1rem;
}
.process-step h3 {
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.5rem;
}
.process-step p {
  color: var(--text-muted);
  font-size: 0.9rem;
  line-height: 1.7;
}

/* ===== FAQ ===== */
.faq-section {
  background: var(--bg-panel);
}
.accordion-item {
  border-bottom: 1px solid var(--border-subtle);
}
.accordion-item:first-child {
  border-top: 1px solid var(--border-subtle);
}
.accordion-title {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1.5rem 0;
  cursor: pointer;
  background: transparent;
  width: 100%;
  text-align: left;
}
.accordion-title .faq-q {
  display: flex;
  align-items: center;
  gap: 1rem;
  flex: 1;
}
.accordion-title .faq-num {
  font-family: var(--font-num);
  color: var(--gold-main);
  font-size: 0.85rem;
  letter-spacing: 0.05em;
  width: 30px;
  flex-shrink: 0;
}
.accordion-title h3 {
  font-size: 1.03rem;
  font-weight: 500;
  color: var(--text-primary);
  transition: color 0.25s;
}
.accordion-title:hover h3 {
  color: var(--gold-bright);
}
.accordion-icon {
  width: 32px;
  height: 32px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-gold);
  border-radius: 50%;
  color: var(--gold-main);
  font-size: 1rem;
  transition: all 0.35s ease;
  flex-shrink: 0;
}
.accordion-title[aria-expanded="true"] .accordion-icon {
  transform: rotate(45deg);
  background: rgba(198,161,91,0.1);
  border-color: var(--gold-main);
}
.accordion-content {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}
.accordion-content-inner {
  padding: 0 0 1.5rem 3.5rem;
  color: var(--text-secondary);
  font-size: 0.95rem;
  line-height: 1.8;
  max-width: 800px;
}

/* ===== CTA ===== */
.cta-section {
  position: relative;
  background: linear-gradient(to right, rgba(14,13,11,0.92) 0%, rgba(14,13,11,0.78) 100%), url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
  padding: clamp(4rem, 8vw, 7rem) 0;
  border-top: 1px solid var(--border-gold);
}
.cta-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.cta-left h2 {
  font-family: var(--font-serif);
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 1rem;
  letter-spacing: 0.04em;
}
.cta-left p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 2rem;
  font-size: 0.98rem;
}
.contact-methods {
  display: grid;
  gap: 1rem;
}
.contact-method {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--text-primary);
  font-size: 0.95rem;
}
.contact-method i {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(198,161,91,0.1);
  border: 1px solid var(--border-gold);
  border-radius: 4px;
  color: var(--gold-main);
  font-size: 0.85rem;
}
.contact-form {
  background: rgba(27,24,20,0.85);
  border: 1px solid var(--border-gold);
  border-radius: var(--radius-card);
  padding: 2.25rem;
  box-shadow: var(--shadow-card);
}
.contact-form h3 {
  font-family: var(--font-serif);
  font-size: 1.3rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 1.5rem;
}
.form-group {
  margin-bottom: 1.25rem;
}
.form-group label {
  display: block;
  color: var(--text-secondary);
  font-size: 0.85rem;
  margin-bottom: 0.4rem;
  letter-spacing: 0.03em;
}
.form-group input,
.form-group textarea {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid rgba(255,255,255,0.15);
  color: var(--text-primary);
  padding: 0.6rem 0;
  font-size: 0.95rem;
  transition: border-color 0.3s ease;
  border-radius: 0;
}
.form-group input:focus,
.form-group textarea:focus {
  border-bottom-color: var(--gold-main);
}
.form-group textarea {
  min-height: 70px;
  resize: vertical;
}
.form-submit {
  width: 100%;
  margin-top: 0.5rem;
}

/* ===== Footer ===== */
.site-footer {
  background: #0A0908;
  border-top: 1px solid var(--border-gold);
  padding: 4rem 0 0;
}
.footer-top {
  gap: 2rem 0;
  padding-bottom: 3rem;
}
.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 1rem;
}
.footer-desc {
  color: var(--text-muted);
  font-size: 0.88rem;
  line-height: 1.8;
  max-width: 320px;
}
.footer-title {
  color: var(--text-primary);
  font-size: 1rem;
  font-weight: 600;
  margin-bottom: 1.25rem;
  font-family: var(--font-serif);
  letter-spacing: 0.04em;
}
.footer-links li {
  margin-bottom: 0.6rem;
}
.footer-links a {
  color: var(--text-secondary);
  font-size: 0.9rem;
  transition: color 0.25s;
}
.footer-links a:hover {
  color: var(--gold-bright);
}
.footer-contact li {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--text-secondary);
  font-size: 0.9rem;
  margin-bottom: 0.6rem;
}
.footer-contact i {
  color: var(--gold-main);
  font-size: 0.85rem;
  width: 16px;
}
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 1.5rem 0;
  text-align: center;
}
.footer-bottom p {
  color: var(--text-muted);
  font-size: 0.82rem;
}

/* ===== 视图动画 ===== */
.fade-up {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== 响应式 ===== */
@media (max-width: 1023px) {
  .main-nav {
    display: none;
  }
  .nav-toggle {
    display: flex;
  }
  .value-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .scene-block {
    grid-template-columns: repeat(3, 1fr);
    gap: 1rem;
  }
  .process-flow {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem 2rem;
  }
  .process-flow::before {
    display: none;
  }
  .alternate-row,
  .alternate-row.reverse {
    flex-direction: column;
    gap: 2rem;
  }
  .alternate-image {
    flex: none;
    width: 100%;
  }
  .cta-grid {
    grid-template-columns: 1fr;
    gap: 3rem;
  }
}
@media (max-width: 767px) {
  .header-inner {
    padding: 0 16px;
  }
  .brand-name {
    font-size: 1.15rem;
  }
  .brand-mark {
    width: 34px;
    height: 34px;
    font-size: 0.9rem;
  }
  .page-hero {
    min-height: auto;
    padding: calc(var(--nav-height) + 3rem) 0 3rem;
  }
  .page-hero h1 {
    font-size: clamp(1.8rem, 7vw, 2.6rem);
  }
  .hero-sub {
    font-size: 0.95rem;
  }
  .section-block {
    padding: 3.5rem 0;
  }
  .section-header {
    margin-bottom: 2.5rem;
    align-items: flex-start;
    flex-direction: column;
  }
  .value-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
  .scene-block {
    grid-template-columns: 1fr;
  }
  .process-flow {
    grid-template-columns: 1fr;
    gap: 2rem;
  }
  .process-step {
    padding-top: 2.5rem;
  }
  .alternate-block {
    padding: 3rem 0;
  }
  .accordion-content-inner {
    padding-left: 2rem;
  }
  .contact-form {
    padding: 1.5rem;
  }
  .hero-buttons {
    flex-direction: column;
    align-items: stretch;
  }
  .hero-buttons .btn {
    width: 100%;
  }
}
@media (max-width: 520px) {
  .container {
    padding: 0 16px;
  }
  .nav-cta {
    display: none;
  }
  .section-title {
    font-size: 1.35rem;
  }
  .section-desc {
    font-size: 0.92rem;
  }
  .alternate-text h3 {
    font-size: 1.3rem;
  }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .scroll-indicator::after {
    animation: none;
  }
  .fade-up {
    opacity: 1;
    transform: none;
  }
}

/* roulang page: article */
:root {
  --bg-primary: #0E0D0B;
  --bg-card: #1B1814;
  --bg-surface: #201C17;
  --gold: #C6A15B;
  --gold-light: #E6CD93;
  --text-primary: #F3EFE8;
  --text-secondary: #A79E93;
  --text-muted: #7A7268;
  --border-light: rgba(255,255,255,0.08);
  --border-gold: rgba(198,161,91,0.35);
  --radius-card: 8px;
  --radius-btn: 4px;
  --shadow-card: 0 12px 40px rgba(0,0,0,0.4);
  --font-serif: Georgia, "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
  --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-sans);
  background: var(--bg-primary);
  color: var(--text-primary);
  font-size: 0.95rem;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; transition: color 0.25s ease, border-color 0.25s ease, background 0.25s ease, box-shadow 0.25s ease, transform 0.25s ease, opacity 0.25s ease; }

ul, ol { list-style: none; }

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

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

.grid-x > .cell {
  padding-left: 0;
  padding-right: 0;
}

/* ===== 按钮 ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  padding: 12px 28px;
  border-radius: var(--radius-btn);
  border: 1px solid transparent;
  letter-spacing: 0.04em;
  transition: all 0.25s ease;
  min-height: 44px;
  white-space: nowrap;
}

.btn-gold {
  background: var(--gold);
  color: #14100A;
  border-color: var(--gold);
  box-shadow: 0 4px 20px rgba(198,161,91,0.22);
}

.btn-gold:hover {
  background: var(--gold-light);
  border-color: var(--gold-light);
  color: #14100A;
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(198,161,91,0.32);
}

.btn-gold:active {
  transform: translateY(-1px);
}

.btn-outline-gold {
  background: transparent;
  color: var(--gold-light);
  border-color: rgba(198,161,91,0.5);
}

.btn-outline-gold:hover {
  border-color: var(--gold-light);
  color: var(--gold-light);
  background: rgba(198,161,91,0.08);
  transform: translateY(-2px);
}

.btn-outline-gold:active {
  transform: translateY(-1px);
}

.btn:focus-visible,
.nav-link:focus-visible,
.footer-links a:focus-visible,
.breadcrumb a:focus-visible,
.article-back a:focus-visible {
  outline: 2px solid var(--gold);
  outline-offset: 3px;
}

/* ===== 头部导航 ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 76px;
  z-index: 100;
  background: rgba(20,18,15,0.45);
  backdrop-filter: blur(14px) saturate(120%);
  -webkit-backdrop-filter: blur(14px) saturate(120%);
  border-bottom: 1px solid rgba(200,170,110,0.18);
  transition: background 0.4s ease, box-shadow 0.4s ease, border-color 0.4s ease;
}

.site-header.scrolled {
  background: rgba(14,13,11,0.92);
  box-shadow: 0 6px 24px rgba(0,0,0,0.35);
  border-bottom-color: rgba(198,161,91,0.2);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 76px;
}

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

.brand-mark {
  width: 38px;
  height: 38px;
  background: var(--gold);
  color: #14100A;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 1rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 3px;
  letter-spacing: 0.02em;
}

.brand-name {
  font-family: var(--font-serif);
  font-size: 1.18rem;
  font-weight: 600;
  color: var(--text-primary);
  letter-spacing: 0.06em;
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-link {
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 0.05em;
  padding: 8px 2px;
  border-bottom: 2px solid transparent;
  transition: color 0.25s ease, border-color 0.25s ease;
}

.nav-link:hover {
  color: var(--gold-light);
  border-bottom-color: rgba(198,161,91,0.4);
}

.nav-link.active {
  color: var(--gold-light);
  border-bottom-color: var(--gold);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.nav-cta {
  padding: 10px 22px;
  font-size: 0.85rem;
  min-height: 40px;
}

.nav-toggle {
  display: none;
  width: 42px;
  height: 42px;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 6px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--border-light);
  border-radius: 6px;
}

.nav-toggle span {
  display: block;
  width: 20px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav-toggle.open span:nth-child(1) { transform: translateY(8px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-8px) rotate(-45deg); }

/* ===== 全屏移动端菜单 ===== */
.mobile-menu {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  height: 100dvh;
  background: rgba(14,13,11,0.97);
  backdrop-filter: blur(10px);
  z-index: 99;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.35s ease, visibility 0.35s ease;
}

.mobile-menu.open {
  opacity: 1;
  visibility: visible;
}

.mobile-menu a {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--text-primary);
  letter-spacing: 0.08em;
}

.mobile-menu a:hover { color: var(--gold-light); }
.mobile-menu a.active { color: var(--gold); border-bottom: 1px solid var(--gold); }

/* ===== 文章 Hero ===== */
.article-hero {
  position: relative;
  min-height: 54vh;
  display: flex;
  align-items: flex-end;
  padding-top: 120px;
  overflow: hidden;
}

.article-hero-bg {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.article-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(14,13,11,0.88) 0%, rgba(14,13,11,0.65) 60%, rgba(14,13,11,0.45) 100%);
  z-index: 1;
}

.article-hero-inner {
  position: relative;
  z-index: 2;
  padding-bottom: clamp(48px, 6vw, 80px);
}

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 22px;
}

.breadcrumb a {
  color: var(--text-secondary);
}

.breadcrumb a:hover {
  color: var(--gold-light);
}

.breadcrumb-sep {
  color: var(--text-muted);
  font-size: 0.8rem;
}

.breadcrumb-current {
  color: var(--gold-light);
  max-width: 260px;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.article-hero-title {
  font-family: var(--font-serif);
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 600;
  line-height: 1.35;
  color: var(--text-primary);
  letter-spacing: 0.02em;
  max-width: 820px;
  margin-bottom: 24px;
}

.article-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 20px;
  font-size: 0.85rem;
  color: var(--text-secondary);
}

.meta-item {
  display: inline-flex;
  align-items: center;
  gap: 7px;
}

.meta-item i {
  color: var(--gold);
  font-size: 0.8rem;
}

.article-hero-line {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  height: 1px;
  background: linear-gradient(90deg, rgba(198,161,91,0.5), rgba(198,161,91,0.08)); 
  z-index: 2;
}

/* ===== 文章正文区 ===== */
.article-main {
  background: var(--bg-primary);
  padding-top: clamp(2rem, 4vw, 3.5rem);
}

.article-body-layout {
  gap: 0;
}

.article-reader {
  background: #F5F0E6;
  color: #1F1B16;
  border-radius: var(--radius-card);
  padding: clamp(28px, 5vw, 56px);
  box-shadow: 0 20px 60px rgba(0,0,0,0.35);
  position: relative;
}

.article-reader::before {
  content: "";
  display: block;
  width: 48px;
  height: 3px;
  background: var(--gold);
  border-radius: 2px;
  margin-bottom: 28px;
}

.article-content {
  max-width: 75ch;
  margin: 0 auto;
}

.article-content p {
  font-size: 1.05rem;
  line-height: 1.8;
  margin-bottom: 1.5em;
  color: #2C2620;
}

.article-content h2 {
  font-family: var(--font-serif);
  font-size: 1.5rem;
  font-weight: 600;
  color: #1F1B16;
  margin: 2em 0 0.8em;
  padding-bottom: 8px;
  border-bottom: 1px solid rgba(31,27,22,0.12);
  line-height: 1.4;
  letter-spacing: 0.03em;
}

.article-content h3 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  font-weight: 600;
  color: #2C2620;
  margin: 1.8em 0 0.6em;
  line-height: 1.45;
}

.article-content h4 {
  font-family: var(--font-serif);
  font-size: 1.05rem;
  font-weight: 600;
  color: #2C2620;
  margin: 1.6em 0 0.5em;
}

.article-content ul,
.article-content ol {
  margin: 1em 0 1.5em;
  padding-left: 1.4em;
  line-height: 1.8;
  font-size: 1.05rem;
}

.article-content ul li {
  list-style: disc;
  margin-bottom: 0.4em;
  color: #2C2620;
}

.article-content ol li {
  list-style: decimal;
  margin-bottom: 0.4em;
  color: #2C2620;
}

.article-content blockquote {
  margin: 2em 0;
  padding: 20px 26px;
  background: rgba(198,161,91,0.08);
  border-left: 3px solid var(--gold);
  font-size: 1.05rem;
  line-height: 1.8;
  color: #3A342C;
  border-radius: 0 6px 6px 0;
}

.article-content blockquote p {
  margin-bottom: 0;
  color: #3A342C;
}

.article-content figure {
  margin: 2.2em 0;
}

.article-content figure img {
  border-radius: 8px;
  width: 100%;
  object-fit: cover;
}

.article-content figcaption {
  margin-top: 10px;
  text-align: center;
  font-size: 0.85rem;
  color: #8A8177;
}

.article-content img {
  border-radius: 8px;
  max-width: 100%;
  height: auto;
}

.article-content a {
  color: #9C7A3A;
  text-decoration: underline;
  text-decoration-color: rgba(156,122,58,0.4);
  text-underline-offset: 4px;
}

.article-content a:hover {
  color: #6E5420;
  text-decoration-color: #6E5420;
}

.article-content strong {
  color: #1F1B16;
  font-weight: 600;
}

.article-content table {
  width: 100%;
  border-collapse: collapse;
  margin: 2em 0;
  font-size: 0.95rem;
}

.article-content table th {
  background: #2C2620;
  color: #F3EFE8;
  padding: 12px 16px;
  text-align: left;
  font-weight: 500;
}

.article-content table td {
  padding: 12px 16px;
  border-bottom: 1px solid rgba(31,27,22,0.1);
  color: #2C2620;
}

/* ===== 内容未找到 ===== */
.article-notfound {
  text-align: center;
  padding: 60px 20px;
}

.article-notfound i {
  font-size: 3rem;
  color: var(--gold);
  opacity: 0.6;
  margin-bottom: 20px;
}

.article-notfound h2 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: #1F1B16;
  margin-bottom: 12px;
  border: none;
  padding: 0;
}

.article-notfound p {
  color: #5B544A;
  margin-bottom: 28px;
}

.article-notfound .btn {
  display: inline-flex;
}

/* ===== 返回列表入口 ===== */
.article-back {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 30px;
  padding: 20px 0;
  border-top: 1px solid rgba(198,161,91,0.15);
}

.article-back a {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
  color: var(--text-secondary);
  padding: 10px 0;
}

.article-back a:hover {
  color: var(--gold-light);
}

.article-back a i {
  font-size: 0.85rem;
  color: var(--gold);
}

/* ===== 相关推荐 ===== */
.related-section {
  padding: clamp(3.5rem, 7vw, 5.5rem) 0;
}

.section-head-row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  margin-bottom: 36px;
  flex-wrap: wrap;
  gap: 14px;
}

.section-label {
  font-size: 0.82rem;
  color: var(--gold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 6px;
}

.related-title {
  font-family: var(--font-serif);
  font-size: clamp(1.4rem, 2.5vw, 1.8rem);
  font-weight: 600;
  letter-spacing: 0.04em;
  color: var(--text-primary);
}

.related-subtitle {
  max-width: 340px;
  font-size: 0.9rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

.related-grid .cell {
  margin-bottom: 24px;
}

.related-card {
  background: var(--bg-card);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-card);
  overflow: hidden;
  height: 100%;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
  transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
}

.related-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 18px 50px rgba(0,0,0,0.55), 0 0 20px rgba(150,115,55,0.12);
  border-color: var(--border-gold);
}

.related-card-figure {
  position: relative;
  aspect-ratio: 16 / 10;
  overflow: hidden;
}

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

.related-card:hover .related-card-figure img {
  transform: scale(1.02);
}

.related-card-figure::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, rgba(14,13,11,0.05), rgba(14,13,11,0.22));
}

.related-tag {
  position: absolute;
  top: 16px;
  left: 16px;
  z-index: 2;
  background: rgba(14,13,11,0.72);
  color: var(--gold-light);
  border: 1px solid rgba(198,161,91,0.45);
  font-size: 0.75rem;
  padding: 5px 14px;
  border-radius: 2px;
  letter-spacing: 0.08em;
  backdrop-filter: blur(6px);
}

.related-card-body {
  padding: 24px 26px 28px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.related-card-title {
  font-family: var(--font-serif);
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.5;
  margin-bottom: 10px;
  letter-spacing: 0.02em;
}

.related-card-summary {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.75;
  margin-bottom: 18px;
  flex: 1;
}

.related-readmore {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  color: var(--gold);
  letter-spacing: 0.04em;
}

.related-readmore i {
  font-size: 0.75rem;
  transition: transform 0.25s ease;
}

.related-readmore:hover {
  color: var(--gold-light);
}

.related-readmore:hover i {
  transform: translateX(3px);
}

/* ===== CTA 区块 ===== */
.cta-section {
  position: relative;
  padding: clamp(3.5rem, 7vw, 6rem) 0;
  background: linear-gradient(135deg, #171410 0%, #1B1814 60%, #14120E 100%);
  border-top: 1px solid rgba(198,161,91,0.2);
  overflow: hidden;
}

.cta-section::before {
  content: "";
  position: absolute;
  right: -10%;
  top: -50%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, rgba(198,161,91,0.08) 0%, transparent 70%);
  pointer-events: none;
}

.cta-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 40px;
  position: relative;
  z-index: 2;
}

.cta-left {
  flex: 1;
  min-width: 280px;
}

.cta-eyebrow {
  font-size: 0.8rem;
  color: var(--gold);
  letter-spacing: 0.18em;
  margin-bottom: 14px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}

.cta-eyebrow::before {
  content: "";
  display: block;
  width: 40px;
  height: 1px;
  background: var(--gold);
}

.cta-title {
  font-family: var(--font-serif);
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 600;
  color: var(--text-primary);
  line-height: 1.4;
  margin-bottom: 16px;
  letter-spacing: 0.03em;
}

.cta-desc {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 460px;
}

.cta-right {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-items: flex-start;
  padding-left: 40px;
  border-left: 1px solid rgba(198,161,91,0.2);
}

.cta-contact-item {
  display: flex;
  align-items: center;
  gap: 14px;
  color: var(--text-primary);
  font-size: 0.95rem;
}

.cta-contact-item i {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: rgba(198,161,91,0.1);
  color: var(--gold);
  font-size: 0.9rem;
  border: 1px solid rgba(198,161,91,0.2);
}

.cta-contact-item span {
  font-size: 0.85rem;
  color: var(--text-secondary);
  display: block;
  margin-bottom: 2px;
}

.cta-contact-item strong {
  font-weight: 500;
  color: var(--text-primary);
  letter-spacing: 0.03em;
}

.cta-buttons {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-top: 8px;
}

/* ===== 页脚 ===== */
.site-footer {
  background: #0A0908;
  border-top: 1px solid rgba(198,161,91,0.2);
  padding-top: clamp(3rem, 6vw, 4.5rem);
}

.footer-top {
  gap: 28px 0;
  padding-bottom: 40px;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 16px;
}

.footer-brand .brand-mark {
  width: 34px;
  height: 34px;
  font-size: 0.9rem;
}

.footer-brand .brand-name {
  font-size: 1.1rem;
}

.footer-desc {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.75;
  max-width: 320px;
}

.footer-title {
  font-family: var(--font-serif);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 18px;
  letter-spacing: 0.06em;
}

.footer-links {
  list-style: none;
}

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

.footer-links a,
.footer-contact li {
  font-size: 0.86rem;
  color: var(--text-secondary);
  line-height: 1.6;
}

.footer-links a:hover {
  color: var(--gold-light);
}

.footer-contact li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  margin-bottom: 12px;
  font-size: 0.86rem;
}

.footer-contact i {
  color: var(--gold);
  font-size: 0.82rem;
  margin-top: 3px;
  width: 16px;
  text-align: center;
}

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding: 22px 0;
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ===== 滚动入场动画 ===== */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal {
    opacity: 1;
    transform: none;
  }
}

/* ===== 响应式 ===== */
@media screen and (max-width: 1023px) {
  .cta-right {
    padding-left: 0;
    border-left: none;
    padding-top: 24px;
    border-top: 1px solid rgba(198,161,91,0.2);
  }
}

@media screen and (max-width: 767px) {
  .main-nav {
    display: none;
  }
  .nav-cta {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .article-hero {
    min-height: 60vh;
    padding-top: 100px;
  }
  .breadcrumb {
    font-size: 0.78rem;
    gap: 6px;
  }
  .article-meta {
    gap: 12px;
    flex-direction: column;
    align-items: flex-start;
  }
  .article-reader {
    padding: 22px 18px;
  }
  .article-back {
    flex-direction: column;
    align-items: flex-start;
    gap: 6px;
  }
  .related-card-figure {
    aspect-ratio: 16 / 9;
  }
  .cta-inner {
    flex-direction: column;
    gap: 28px;
  }
  .cta-left {
    width: 100%;
  }
  .cta-right {
    width: 100%;
  }
  .cta-buttons {
    flex-direction: column;
    width: 100%;
  }
  .cta-buttons .btn {
    width: 100%;
  }
}

@media screen and (max-width: 520px) {
  .container {
    padding-left: 18px;
    padding-right: 18px;
  }
  .article-hero-title {
    font-size: 1.5rem;
  }
  .brand-name {
    font-size: 1rem;
  }
  .brand-mark {
    width: 32px;
    height: 32px;
    font-size: 0.85rem;
  }
  .related-card-body {
    padding: 18px 18px 20px;
  }
}

/* roulang page: category2 */
:root {
            --bg-dark: #0E0D0B;
            --bg-panel: #1B1814;
            --bg-overlay: #201C17;
            --gold: #C6A15B;
            --gold-light: #E6CD93;
            --text-primary: #F3EFE8;
            --text-secondary: #A79E93;
            --text-weak: #7A7268;
            --border: rgba(255, 255, 255, 0.08);
            --border-gold: rgba(198, 161, 91, 0.35);
            --shadow-card: 0 12px 40px rgba(0, 0, 0, 0.4);
            --shadow-card-hover: 0 18px 50px rgba(0, 0, 0, 0.55), 0 0 40px rgba(150, 115, 55, 0.12);
            --radius: 8px;
            --radius-btn: 4px;
            --transition: 0.25s ease;
            --font-serif: Georgia, "Noto Serif SC", "Source Han Serif SC", "Songti SC", SimSun, serif;
            --font-sans: -apple-system, BlinkMacSystemFont, "PingFang SC", "Microsoft YaHei", sans-serif;
            --font-num: "Didot", "Bodoni MT", Georgia, serif;
        }

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

        html {
            scroll-behavior: smooth;
            font-size: 16px;
        }

        body {
            background: var(--bg-dark);
            color: var(--text-primary);
            font-family: var(--font-sans);
            line-height: 1.7;
            font-weight: 400;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
        }

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

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

        button,
        input,
        textarea {
            font-family: inherit;
            border: none;
            outline: none;
            background: transparent;
            color: inherit;
        }

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

        /* 导航 */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            height: 76px;
            z-index: 1000;
            background: rgba(20, 18, 15, 0.45);
            backdrop-filter: blur(14px) saturate(120%);
            -webkit-backdrop-filter: blur(14px) saturate(120%);
            border-bottom: 1px solid rgba(200, 170, 110, 0.18);
            transition: background 0.4s ease, box-shadow 0.4s ease;
        }

        .site-header.scrolled {
            background: rgba(14, 13, 11, 0.92);
            box-shadow: 0 6px 24px rgba(0, 0, 0, 0.35);
        }

        .header-inner {
            display: flex;
            align-items: center;
            justify-content: space-between;
            height: 100%;
        }

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

        .brand-mark {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 38px;
            height: 38px;
            background: linear-gradient(135deg, var(--gold), var(--gold-light));
            color: #1B1814;
            font-family: var(--font-serif);
            font-weight: 700;
            font-size: 14px;
            border-radius: 4px;
            letter-spacing: 0.02em;
        }

        .brand-name {
            font-family: var(--font-serif);
            font-size: 1.1rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: var(--text-primary);
            white-space: nowrap;
        }

        .main-nav {
            display: flex;
            align-items: center;
            gap: 2rem;
        }

        .nav-link {
            position: relative;
            font-size: 0.95rem;
            color: var(--text-primary);
            padding: 8px 4px;
            letter-spacing: 0.02em;
        }

        .nav-link::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 1px;
            background: var(--gold);
            transition: width 0.3s ease;
        }

        .nav-link:hover,
        .nav-link.active {
            color: var(--gold-light);
        }

        .nav-link:hover::after,
        .nav-link.active::after {
            width: 100%;
        }

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

        .btn {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            padding: 10px 24px;
            border-radius: var(--radius-btn);
            font-size: 0.9rem;
            font-weight: 500;
            letter-spacing: 0.04em;
            cursor: pointer;
            transition: all 0.25s ease;
            line-height: 1.4;
        }

        .btn-gold {
            background: var(--gold);
            color: #1B1814;
            border: 1px solid var(--gold);
        }

        .btn-gold:hover {
            background: var(--gold-light);
            border-color: var(--gold-light);
            transform: translateY(-2px);
            box-shadow: 0 8px 24px rgba(198, 161, 91, 0.25);
        }

        .btn-gold:active {
            transform: translateY(-1px);
        }

        .btn-outline {
            background: transparent;
            color: var(--gold-light);
            border: 1px solid var(--border-gold);
        }

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

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

        .nav-cta {
            padding: 8px 18px;
            font-size: 0.85rem;
            white-space: nowrap;
        }

        .nav-toggle {
            display: none;
            flex-direction: column;
            gap: 5px;
            padding: 10px;
            background: transparent;
            border: 1px solid var(--border);
            border-radius: 4px;
            cursor: pointer;
            align-items: center;
            justify-content: center;
        }

        .nav-toggle span {
            display: block;
            width: 22px;
            height: 1px;
            background: var(--text-primary);
            transition: all 0.3s ease;
        }

        .nav-toggle.open span:nth-child(1) {
            transform: translateY(6px) rotate(45deg);
        }
        .nav-toggle.open span:nth-child(2) {
            opacity: 0;
        }
        .nav-toggle.open span:nth-child(3) {
            transform: translateY(-6px) rotate(-45deg);
        }

        /* 移动端全屏菜单 */
        .mobile-menu {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: rgba(14, 13, 11, 0.97);
            backdrop-filter: blur(20px);
            z-index: 990;
            display: flex;
            flex-direction: column;
            align-items: center;
            justify-content: center;
            gap: 2.2rem;
            opacity: 0;
            visibility: hidden;
            transition: opacity 0.4s ease, visibility 0.4s ease;
        }

        .mobile-menu.open {
            opacity: 1;
            visibility: visible;
        }

        .mobile-menu a {
            font-family: var(--font-serif);
            font-size: 1.5rem;
            color: var(--text-primary);
            letter-spacing: 0.04em;
        }

        .mobile-menu a:hover,
        .mobile-menu a.active {
            color: var(--gold-light);
        }

        /* Hero */
        .page-hero {
            position: relative;
            min-height: 62vh;
            display: flex;
            align-items: center;
            background: linear-gradient(to right, rgba(14, 13, 11, 0.88), rgba(14, 13, 11, 0.55)), url('/assets/images/backpic/back-1.webp') center/cover no-repeat;
            padding: 140px 0 90px;
        }

        .page-hero::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, transparent 60%, var(--bg-dark) 100%);
            pointer-events: none;
        }

        .page-hero-content {
            position: relative;
            z-index: 2;
            max-width: 720px;
        }

        .hero-eyebrow {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.85rem;
            letter-spacing: 0.14em;
            text-transform: uppercase;
            color: var(--gold);
            margin-bottom: 24px;
        }

        .hero-eyebrow::before {
            content: '';
            width: 40px;
            height: 1px;
            background: var(--gold);
            flex-shrink: 0;
        }

        .page-hero h1 {
            font-family: var(--font-serif);
            font-size: clamp(2.4rem, 6vw, 4.2rem);
            font-weight: 600;
            letter-spacing: 0.04em;
            line-height: 1.15;
            margin-bottom: 20px;
            color: var(--text-primary);
        }

        .hero-sub {
            font-size: 1.05rem;
            line-height: 1.8;
            color: var(--text-secondary);
            max-width: 560px;
            margin-bottom: 36px;
        }

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

        .scroll-indicator {
            position: absolute;
            bottom: 30px;
            left: 50%;
            transform: translateX(-50%);
            width: 1px;
            height: 48px;
            background: transparent;
            overflow: hidden;
            z-index: 2;
        }

        .scroll-indicator::before {
            content: '';
            display: block;
            width: 1px;
            height: 100%;
            background: var(--gold);
            animation: scrollDown 2.2s ease-in-out infinite;
            transform-origin: top;
        }

        @keyframes scrollDown {
            0% { transform: scaleY(0); transform-origin: top; }
            45% { transform: scaleY(1); transform-origin: top; }
            55% { transform: scaleY(1); transform-origin: bottom; }
            100% { transform: scaleY(0); transform-origin: bottom; }
        }

        /* 通用板块 */
        .section {
            padding: clamp(4rem, 8vw, 7.5rem) 0;
            background: var(--bg-dark);
        }

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

        .section-head {
            margin-bottom: 4rem;
        }

        .section-index {
            display: inline-flex;
            align-items: center;
            gap: 10px;
            font-family: var(--font-num);
            font-size: 0.9rem;
            letter-spacing: 0.12em;
            color: var(--gold);
            margin-bottom: 14px;
        }

        .section-index::after {
            content: '';
            width: 34px;
            height: 1px;
            background: var(--gold);
            opacity: 0.5;
        }

        .section-head h2 {
            font-family: var(--font-serif);
            font-size: clamp(1.6rem, 3vw, 2.4rem);
            font-weight: 600;
            letter-spacing: 0.04em;
            color: var(--text-primary);
            line-height: 1.3;
            margin-bottom: 14px;
        }

        .section-sub {
            font-size: 0.98rem;
            color: var(--text-secondary);
            max-width: 560px;
            line-height: 1.8;
        }

        /* 图文交错服务内容 */
        .service-showcase-item {
            margin-bottom: 5.5rem;
        }

        .service-showcase-item:last-child {
            margin-bottom: 0;
        }

        .showcase-media {
            position: relative;
            border-radius: var(--radius);
            overflow: hidden;
            border: 1px solid var(--border-gold);
            aspect-ratio: 4 / 3;
            box-shadow: var(--shadow-card);
        }

        .showcase-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

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

        .showcase-media::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(145deg, rgba(14, 13, 11, 0.4), transparent 45%);
            pointer-events: none;
        }

        .showcase-tag {
            display: inline-block;
            font-size: 0.75rem;
            letter-spacing: 0.1em;
            color: var(--gold);
            background: rgba(198, 161, 91, 0.12);
            border: 1px solid var(--border-gold);
            border-radius: 2px;
            padding: 4px 14px;
            margin-bottom: 18px;
        }

        .showcase-body h3 {
            font-family: var(--font-serif);
            font-size: 1.35rem;
            font-weight: 600;
            letter-spacing: 0.04em;
            color: var(--text-primary);
            margin-bottom: 16px;
        }

        .showcase-body p {
            font-size: 0.98rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 22px;
            max-width: 420px;
        }

        .showcase-link {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            font-size: 0.88rem;
            color: var(--gold);
            letter-spacing: 0.04em;
        }

        .showcase-link i {
            font-size: 0.75rem;
            transition: transform 0.25s ease;
        }

        .showcase-link:hover {
            color: var(--gold-light);
        }

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

        /* 数据指标 */
        .metrics-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 32px;
        }

        .metric-item {
            padding: 28px 24px;
            border-top: 1px solid var(--gold);
            position: relative;
        }

        .metric-item::after {
            content: '';
            position: absolute;
            right: 0;
            top: 20px;
            bottom: 20px;
            width: 1px;
            background: var(--border);
        }

        .metric-item:last-child::after {
            display: none;
        }

        .metric-number {
            font-family: var(--font-num);
            font-size: clamp(2rem, 4vw, 3rem);
            font-weight: 400;
            color: var(--gold-light);
            line-height: 1.2;
            margin-bottom: 10px;
            letter-spacing: 0.02em;
        }

        .metric-label {
            font-size: 0.9rem;
            color: var(--text-secondary);
            letter-spacing: 0.04em;
        }

        /* 服务流程 */
        .process-steps {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 24px;
            position: relative;
        }

        .process-steps::before {
            content: '';
            position: absolute;
            top: 30px;
            left: 6%;
            right: 6%;
            height: 1px;
            background: repeating-linear-gradient(to right, var(--border-gold) 0 6px, transparent 6px 12px);
            pointer-events: none;
        }

        .process-step {
            position: relative;
            padding: 24px 20px 0;
        }

        .step-num {
            font-family: var(--font-num);
            font-size: 2.4rem;
            color: var(--gold);
            line-height: 1;
            display: block;
            margin-bottom: 20px;
            letter-spacing: 0.04em;
            position: relative;
            z-index: 1;
            background: var(--bg-dark);
            display: inline-block;
            padding-right: 12px;
        }

        .process-step h4 {
            font-family: var(--font-serif);
            font-size: 1.08rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 10px;
            letter-spacing: 0.03em;
        }

        .process-step p {
            font-size: 0.9rem;
            color: var(--text-secondary);
            line-height: 1.7;
        }

        /* 适用场景 */
        .scene-card {
            background: var(--bg-overlay);
            border: 1px solid var(--border);
            border-radius: var(--radius);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            transition: box-shadow 0.3s ease, transform 0.3s ease;
            height: 100%;
            display: flex;
            flex-direction: column;
        }

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

        .scene-media {
            aspect-ratio: 16 / 9;
            overflow: hidden;
            position: relative;
        }

        .scene-media img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            transition: transform 0.6s ease;
        }

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

        .scene-media::after {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            right: 0;
            bottom: 0;
            background: linear-gradient(180deg, transparent 55%, rgba(14, 13, 11, 0.55) 100%);
        }

        .scene-body {
            padding: 28px 28px 32px;
            flex-grow: 1;
            display: flex;
            flex-direction: column;
        }

        .scene-body h3 {
            font-family: var(--font-serif);
            font-size: 1.2rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 12px;
            letter-spacing: 0.04em;
        }

        .scene-body p {
            font-size: 0.92rem;
            color: var(--text-secondary);
            line-height: 1.75;
            flex-grow: 1;
        }

        .scene-tag {
            display: inline-block;
            font-size: 0.72rem;
            letter-spacing: 0.1em;
            color: var(--gold);
            background: rgba(198, 161, 91, 0.1);
            border: 1px solid var(--border-gold);
            padding: 3px 12px;
            border-radius: 2px;
            margin-top: 18px;
            align-self: flex-start;
        }

        /* FAQ */
        .faq-wrap {
            max-width: 800px;
            margin: 0 auto;
        }

        .custom-accordion {
            list-style: none;
        }

        .custom-accordion .accordion-item {
            background: transparent;
            border: none;
            border-bottom: 1px solid var(--border);
        }

        .custom-accordion .accordion-item:first-child {
            border-top: 1px solid var(--border);
        }

        .custom-accordion .accordion-title {
            display: flex;
            align-items: center;
            gap: 18px;
            padding: 22px 8px;
            font-size: 1rem;
            color: var(--text-primary);
            background: transparent;
            border: none;
            transition: color 0.3s ease;
        }

        .custom-accordion .accordion-title:hover,
        .custom-accordion .accordion-item.is-active .accordion-title {
            color: var(--gold);
            background: transparent;
        }

        .faq-num {
            font-family: var(--font-num);
            font-size: 0.85rem;
            color: var(--gold);
            letter-spacing: 0.04em;
            flex-shrink: 0;
            width: 28px;
        }

        .faq-question {
            flex-grow: 1;
            font-weight: 500;
            letter-spacing: 0.02em;
        }

        .faq-icon {
            position: relative;
            width: 20px;
            height: 20px;
            flex-shrink: 0;
            display: inline-flex;
            align-items: center;
            justify-content: center;
            font-size: 1.2rem;
            color: var(--gold);
            transition: transform 0.3s ease;
            font-weight: 300;
        }

        .accordion-item.is-active .faq-icon {
            transform: rotate(45deg);
        }

        .custom-accordion .accordion-content {
            background: transparent;
            border: none;
            padding: 0 28px 24px 54px;
            color: var(--text-secondary);
            font-size: 0.94rem;
            line-height: 1.8;
        }

        /* CTA */
        .cta-section {
            position: relative;
            padding: clamp(4rem, 7vw, 6.5rem) 0;
            background: linear-gradient(rgba(14, 13, 11, 0.82), rgba(14, 13, 11, 0.92)), url('/assets/images/backpic/back-3.webp') center/cover no-repeat;
        }

        .cta-inner {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: start;
        }

        .cta-info h2 {
            font-family: var(--font-serif);
            font-size: clamp(1.6rem, 3vw, 2.2rem);
            font-weight: 600;
            letter-spacing: 0.04em;
            color: var(--text-primary);
            margin-bottom: 18px;
        }

        .cta-info p {
            font-size: 0.95rem;
            color: var(--text-secondary);
            line-height: 1.8;
            margin-bottom: 34px;
            max-width: 400px;
        }

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

        .cta-contact-list li {
            display: flex;
            align-items: center;
            gap: 14px;
            font-size: 0.95rem;
            color: var(--text-primary);
        }

        .cta-contact-list i {
            width: 20px;
            text-align: center;
            color: var(--gold);
            font-size: 0.9rem;
        }

        .cta-form-wrap {
            background: rgba(27, 24, 20, 0.8);
            border: 1px solid var(--border-gold);
            border-radius: 12px;
            padding: 38px 34px;
            box-shadow: var(--shadow-card);
        }

        .cta-form-wrap h3 {
            font-family: var(--font-serif);
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-primary);
            margin-bottom: 8px;
            letter-spacing: 0.04em;
        }

        .cta-form-wrap .form-hint {
            font-size: 0.82rem;
            color: var(--text-weak);
            margin-bottom: 28px;
        }

        .form-group {
            margin-bottom: 22px;
        }

        .form-group label {
            display: block;
            font-size: 0.82rem;
            color: var(--text-secondary);
            letter-spacing: 0.06em;
            margin-bottom: 8px;
            text-transform: uppercase;
        }

        .form-group input,
        .form-group textarea {
            width: 100%;
            background: transparent;
            border: none;
            border-bottom: 1px solid rgba(255, 255, 255, 0.18);
            padding: 10px 2px;
            font-size: 0.95rem;
            color: var(--text-primary);
            transition: border-color 0.3s ease;
            border-radius: 0;
        }

        .form-group textarea {
            resize: vertical;
            min-height: 70px;
        }

        .form-group input:focus,
        .form-group textarea:focus {
            border-bottom-color: var(--gold);
            outline: none;
        }

        .form-group input::placeholder,
        .form-group textarea::placeholder {
            color: var(--text-weak);
            font-size: 0.85rem;
        }

        .form-submit {
            width: 100%;
            margin-top: 8px;
        }

        /* 页脚 */
        .site-footer {
            background: #0A0908;
            border-top: 1px solid var(--border-gold);
            padding: 64px 0 0;
        }

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

        .footer-brand {
            display: flex;
            align-items: center;
            gap: 10px;
            margin-bottom: 18px;
        }

        .footer-brand .brand-mark {
            width: 34px;
            height: 34px;
            font-size: 12px;
        }

        .footer-brand .brand-name {
            font-size: 1rem;
        }

        .footer-desc {
            font-size: 0.9rem;
            color: var(--text-weak);
            line-height: 1.75;
            max-width: 280px;
        }

        .footer-title {
            font-family: var(--font-serif);
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-primary);
            letter-spacing: 0.04em;
            margin-bottom: 20px;
        }

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

        .footer-links a {
            font-size: 0.9rem;
            color: var(--text-secondary);
        }

        .footer-links a:hover {
            color: var(--gold);
        }

        .footer-contact li {
            font-size: 0.88rem;
            color: var(--text-secondary);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .footer-contact i {
            color: var(--gold);
            width: 16px;
            font-size: 0.8rem;
            text-align: center;
        }

        .footer-bottom {
            border-top: 1px solid var(--border);
            padding: 22px 0;
            text-align: center;
        }

        .footer-bottom p {
            font-size: 0.82rem;
            color: var(--text-weak);
            letter-spacing: 0.04em;
        }

        /* fade-up */
        .fade-up {
            opacity: 0;
            transform: translateY(20px);
            transition: opacity 0.6s ease-out, transform 0.6s ease-out;
        }

        .fade-up.visible {
            opacity: 1;
            transform: translateY(0);
        }

        /* 响应式 */
        @media (max-width: 1024px) {
            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
                gap: 24px;
            }

            .metric-item::after {
                display: none;
            }

            .process-steps {
                grid-template-columns: repeat(2, 1fr);
                gap: 36px 20px;
            }

            .process-steps::before {
                display: none;
            }

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

        @media (max-width: 767px) {
            .main-nav {
                display: none;
            }

            .nav-toggle {
                display: flex;
            }

            .nav-cta {
                display: none;
            }

            .page-hero {
                min-height: 70vh;
                padding: 120px 0 70px;
            }

            .metrics-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .process-steps {
                grid-template-columns: 1fr;
                padding-left: 0;
            }

            .process-step {
                padding: 10px 0 0 24px;
                border-left: 1px solid var(--border-gold);
                margin-left: 8px;
            }

            .step-num {
                background: transparent;
            }

            .service-showcase-item .grid-x {
                flex-direction: column;
            }

            .service-showcase-item .cell {
                margin-bottom: 24px;
            }

            .footer-top .cell {
                margin-bottom: 36px;
            }
        }

        @media (min-width: 768px) and (max-width: 1023px) {
            .service-showcase-item .grid-x {
                flex-direction: column;
            }

            .service-showcase-item .cell {
                margin-bottom: 24px;
            }
        }

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

            .page-hero h1 {
                font-size: 2rem;
            }

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

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

            .metrics-grid {
                grid-template-columns: 1fr 1fr;
                gap: 16px;
            }

            .metric-item {
                padding: 20px 12px;
            }

            .cta-form-wrap {
                padding: 28px 20px;
            }
        }

        /* 无动效偏好 */
        @media (prefers-reduced-motion: reduce) {
            *,
            *::before,
            *::after {
                animation-duration: 0.01ms !important;
                transition-duration: 0.01ms !important;
                scroll-behavior: auto !important;
            }
        }